CN100435906C - High-efficient filter press for precision chemistry - Google Patents
High-efficient filter press for precision chemistry Download PDFInfo
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- CN100435906C CN100435906C CNB2004800367496A CN200480036749A CN100435906C CN 100435906 C CN100435906 C CN 100435906C CN B2004800367496 A CNB2004800367496 A CN B2004800367496A CN 200480036749 A CN200480036749 A CN 200480036749A CN 100435906 C CN100435906 C CN 100435906C
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000002002 slurry Substances 0.000 claims abstract description 63
- 239000004744 fabric Substances 0.000 claims abstract description 59
- 239000007787 solid Substances 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims description 12
- 239000008400 supply water Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000009955 starching Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 13
- 239000012530 fluid Substances 0.000 abstract description 5
- 239000007791 liquid phase Substances 0.000 abstract description 2
- 239000000706 filtrate Substances 0.000 abstract 6
- 238000007373 indentation Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 23
- 239000003054 catalyst Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 14
- 238000004140 cleaning Methods 0.000 description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 description 10
- 238000005272 metallurgy Methods 0.000 description 8
- 238000009854 hydrometallurgy Methods 0.000 description 6
- 229910052697 platinum Inorganic materials 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000510 noble metal Inorganic materials 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000010948 rhodium Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229960004643 cupric oxide Drugs 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/164—Chamber-plate presses, i.e. the sides of the filtering elements being clamped between two successive filtering plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/28—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating
- B01D25/281—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating specially for chamber filter presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/28—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating
- B01D25/282—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying
- B01D25/284—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying by gases or by heating
Abstract
The present invention relates in general to a filter press for use in filtering a liquid-phase filtrate only by passing a slurry in the liquid and solid state through a filter cloth under pressure, and segregating solid from the slurry. More specifically, the present invention relates to a high-efficient filter press for precision chemistry, in which filtrate channels are modified with a high efficiency to enhance filtering/cleansing functions, and the circumference of the filter cloth is made waterproof to prevent leakage of filtrate under indentation, whereby the filter press performs the cleansing operation better and even dries the solid by using a dry compressed air. To this end, the filter press of the present invention includes support blocks (10), each with a water/air supply through hole (32) in the upper corner of one side, a slurry supply through hole (34) in the upper corner of the other side, a water/air/filtrate return through hole (36) in the lower corner of one side, and a supply chamber (38) at the center for accommodating a slurry and molding the slurry to a cake state; filter blocks (12), each with a supply circulation path 54 in correspondence to the supply chamber of the support block, and a filter sheet (50) formed of a plurality of fluid flow path grooves (51) for passing through a filtrate. Preferably, a plurality of water/air/filtrate outlets (58) are formed only in the lower end of one side (a) of the filter sheet, and a plurality of water/air inlets (56) are formed only in the upper end of the other side (b) of the filter sheet.
Description
Technical field
[1] the present invention relates to a kind of filter press, this filter press only is used for filtering the liquid phase filter liquor by making under pressure to be in that liquid and solid-state slurry passes filter cloth and solid separated with slurry.More specifically, the present invention relates to a kind of high-efficient filter press for precision chemistry, wherein the filter liquor passage is modified into and has high efficient and strengthen filtration/cleaning function, the periphery of filter cloth is made waterproof formula to be leaked under pressuring action to prevent filter liquor, filter press can be carried out clean operation better thus, even by using the dry-pressing air that contracts to come drying solid.
Background technology
[2] common, from waste materials, reclaim various noble metals for example platinum (Pt), palladium (Pd) and rhodium (Rh).These platinums group metal (PGM) have the corrosion resistance of very high fusing point, fabulous chemical resistance of concrete and as unique chemical property of catalytic reduction and so on.
[3] the estimation world annual production of PGM reaches 200 tons.Output above 90% is from the South Africa and the former Soviet Union, and about 6% output is from Canada, on a small quantity from South America, the U.S., Australia and Japanese.PGM is widely used in vehicle catalyst and petro chemical industry catalyst.
[4] although the function of described catalyst and composition is being the thing of nature through degeneration and ultimate failure taking place after considerable time and removing, if but the importer of PGM can reclaim and reuse PGM, to be significant, because this both economical and effective helps environment again.
[5] noble metal on the catalyst carrier of the muffler inboard that is supported on vehicle is received in existing a large amount of proposal back and forth, but each proposes all to possess skills the strengths and weaknesses.Especially, PGM has high ionization potential and is not easy fusing.And catalyst carrier makes with the pollution of other carrier and is difficult to more extract and separate PGM.
[6] the another kind of selection is exactly from being used for the expensive PGM of dead catalyst recovery that vehicle exhaust purifies.This type of example comprises hydrometallurgical processes, fire metallurgy process and wet method/fire metallurgy process.
[7] hydrometallurgical processes is a kind of technology that relates to the dead catalyst that comprises PGM.Dead catalyst is pulverized, and made it be dissolved in hydrochloric acid or chloroazotic acid (HCL: HNO
3=3: 1) so that generate the PGM of chloride form.
Hydrometallurgical processes is fairly simple and had many years.Yet, under the situation of using leachate, just need excessive washing lotion, and be used for the uneconomical material benefit of cost of the post processing of acid.In addition, must carry out complicated, multistage technology and carry out drop and get, and the used not reproducible utilization of carrier or non-renewable in the described technology.
After reclaiming PGM, residue is carried out waste disposal, this comprises the acid of removing on the useless carrier, this is very complicated.In PGM, platinum is dissolved in the chloroazotic acid, and palladium is dissolved in nitric acid, sulfuric acid and the hydrochloric acid.Yet rhodium can not be dissolved in the chloroazotic acid fully.Therefore, utilize the percentage of the rhodium that hydrometallurgy reclaims quite low, even be lower than about 50%.
On the other hand, according to fire metallurgy process, at high temperature heat dead catalyst so that PGM is fused to wherein and reclaims carrier thus.In this technology, dead catalyst should be heated to the above temperature of its fusing point, and the inductively coupled plasma under electric furnace, electric arc furnaces or the high temperature is usually as heater.
Fire metallurgy process is that than the more economical part of wet method technology it is feature with the high-speed process and forms the slag that can easily handle and sell.Yet employed carrier can not reuse in the fire metallurgy process.Another shortcoming of fire metallurgy process is exactly that the whole catalyst that comprises carrier must be heated, and also is so even be supported on the content of the PGM on the carrier extremely low, so its efficiency is very low.And, owing to part PGM is retained on the carrier with molten condition, so final recovery percentage is very low.
Particularly, the separation method in known wet method/fire metallurgy process is exactly with cupric oxide ore or nickel oxide ores deoxidation coal-forming, and uses chloride through multi-stage process, so that be lower than the metallic element deoxidation that makes selectively under the temperature of its fusing point wherein.This technology is based on the following fact: the metal that is extracted is isolated from original silicate ore at carbon surrounding, so it can be used for refined copper or nickel.On the other hand, intermediate processing is not the proper method that is used to reclaim noble metal, because the remaining noble metal of cleaning will spend a large amount of time, and needs to consume many washing lotions in doing so.
Japan publication No.4-304328 discloses an embodiment of wet method/fire metallurgy process.Yet the disclosure content has just proposed by the auxiliary reduction of active carbon, has added the possibility that chloride, heat treatment and hydrometallurgy increase PGM output.Therefore, need under different reaction conditions, do more completely and check, and need carry out more researchs the melting process after the PGM reduction.
Simultaneously, the filter press of correlation technique (equipment) has following weakness.
The filter-press that is used for filter press is a plurality of filter plates and filter frame dual system of alternately arranging or the individual system that only is arranged with a plurality of filter plates.If when filter press not needing to be used for high pigment, dyestuff, oil and brewing equipment that reclaims percentage or sewage treatment equipment, then use single system usually.Yet under the situation of precision chemical field that is used for reclaiming from waste materials expensive heavy metal or industry, reclaiming percentage is decision company key of success factor.Therefore, it is preferred using the dual system of filter plate and filter frame.However, the percentage of dual system still is not higher than 90%, and this does not preferably finish washing process and still residual a spot of recyclable heavy metal with regard to meaning.
According to dual system, filter cloth is between filter plate and filter frame, and described filter plate and filter frame be firmly fastened to together, thereby with 4-10kg/cm
2Pressure filter liquor is pressurizeed.Yet no matter how filter plate and filter frame are firmly fastened to together, at 4-10kg/cm
2Pressure under, filter liquor usually all can be between the structure of filter cloth seepage.Can this thing happens even filter cloth is made also by high-density fabric.
Particularly, when using hydrometallurgy, inboard before pressurization at filter frame at dead catalyst, (HCL: HNO in hydrochloric acid or the chloroazotic acid is at first pulverized and be dissolved in to dead catalyst
3=3: 1).Usually, very strong acid is as chloroazotic acid, so that reclaim the heavy metal that comprises platinum.This is the hazards that influence safety of workers always, can cause fatal harm to the workman.In addition, reclaim the reduction reaction of technology and can send one stench, this is undesirable thing for the workman.Therefore, many companies have built independent equipment so that remove this stench, can increase manufacturing cost but do like this.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of efficient filter press that noble metal reclaims technology that is used for, wherein said filter press more effectively the branch syneresis and fully cleaning be in slurry liquid and solid (powder) attitude, loss is minimized and make maximum production, and the stench of poisonous and harmful chemicals or output are blocked by filter press, thereby form working environment safer, that clean for the workman.
To achieve these goals, the filter press that provides a kind of precision chemical to use, being deposited on the filter cloth by applying the solid of high pressure in will starching, and only filter liquor is delivered to the outside, described filter press comprises: the scaffold of placing apart from a plurality of parallel installed part preset distances; Be installed on the pressure plare on described scaffold one side, described pressure plare moves along inside direction by the console switch operation and by drive unit; Be installed on the supply pipe at described scaffold opposite side place, described supply pipe is connected to the water supply valve that is used to supply the slurry supply valve of slurry and is used to supply water, and slurry and water are by the pump supply by the console switch operation herein; Be installed on the described installed part and be installed on rest pad between described pressure plare and the supply pipe, the water supply through hole that wherein is used to supply water is formed at the upper corner place, the slurry supply through hole that is used to supply slurry is formed at another upper corner place, water/the filter liquor that is used to discharge filter liquor and/or water is returned through hole and is formed at lower corner, and supply room is formed at centre, slurry gathers and is molded into cake shape (cake state) at described supply room place, slurry supply through hole and supply room communicate with each other by the slurry supply orifice; Be installed on the described installed part as a unit and be installed in filter block between described pressure plare and the supply pipe according to concerning one to one with described rest pad, wherein filter block water supply through hole, filter block slurry supply through hole and filter block water/filter liquor are returned through hole and are formed at respectively with described water supply through hole, slurry supply through hole and the water/filter liquor of described rest pad and return on the corresponding position of through hole; The supply circulation canal is formed on the corresponding position of described supply room with rest pad; And form and have a plurality of filter plates that are used for through the groove of filter liquor, described filter plate comprises that a plurality of water/filter liquor of the lower end that is arranged in a side exports, is arranged in a plurality of water inlets of the upper end of opposite side, wherein said filter block water supply through hole and described supply circulation canal communicate with each other by the water supply orifice, and described filter block water/filter liquor is returned through hole and described supply circulation canal communicates with each other by water/filter liquor return aperture; Filter cloth between described rest pad and described filter block so that separate described supply room and described filter plate.
Preferably, the edge of filter cloth is made waterproof formula and is caused the filter liquor seepage so that prevent owing to applying high pressure.
Randomly, can make the edge of filter cloth waterproof in the following manner, promptly be coated with glue for several times to the edge of filter cloth; Liquid silicon is injected to the edge of filter cloth so that solidify; Perhaps apply suitable heat and pressure so that remove hole on the edge to the edge of filter cloth.
For the 4-10kg/cm that prevents to confess the slurry high-pressure pump owing to applying
2High pressure cause that filter liquor leaks, rest pad, filter block and intervenient filter cloth are by means of producing 150-250kg/cm
2The hydraulic pump of pressure and hydraulic cylinder and being glued together securely mutually.In this manner, even filter liquor can seepage yet under from the high pressure of stock pump.
Preferably, form direction protrusion, and form the hole corresponding, by described direction protrusion being inserted in the described hole filter cloth is attached on the filter block thus with direction protrusion in the center of filter cloth at the upper end of filter block.
Preferably, formation pawl and described pawl are supported on the installed part on the both sides of filter block.
Preferably, the water supply through hole that is used to supply water when slurry is carried out as the discharge-channel of undiluted (original) solution, and during cleaning procedure, be used as the wash water injection orifice, and as supplying compressed air dry water/air supply through hole of having washed solid.
According to efficient filter press of the present invention, the waterproof edge of filter cloth can prevent the chloroazotic acid seepage, and the filtration/cleaning function of filter press obtains significant improvement, thereby makes resource reclaim maximization.
Description of drawings
By reading the detailed description of carrying out below in conjunction with accompanying drawing, will clearer above purpose of the present invention, feature and advantage, in described accompanying drawing:
Fig. 1 is the perspective view of filter press according to a preferred embodiment of the invention;
Fig. 2 is the schematic diagram that shows according to the structure of filter press of the present invention;
Fig. 3 is according to the side view that comprises the filter element of rest pad and filter block of the present invention;
Fig. 4 is the cutaway view according to filter press of the present invention;
Fig. 5 is according to the filter block of filter press of the present invention and the perspective view of filter cloth;
Fig. 6 shows the cutaway view of starching filtering technique according to an embodiment of the invention; And
Fig. 7 shows the cutaway view of washing/air drying process according to an embodiment of the invention
The specific embodiment
Referring now to accompanying drawing the preferred embodiments of the present invention are described.
Fig. 1 is the perspective view of filter press according to a preferred embodiment of the invention; Fig. 2 is the schematic diagram that shows according to the structure of filter press of the present invention; Fig. 3 is according to the side view that comprises the filter element of rest pad and filter block of the present invention; Fig. 4 is the cutaway view according to filter press of the present invention; Fig. 5 is according to the filter block of filter press of the present invention and the perspective view of filter cloth.
As shown in Fig. 1 and Fig. 2, be used for comprising scaffold 4, pressure plare 6, supply pipe 8 and filter element 13 that described filter element 13 comprises rest pad 10, filter cloth 11 and filter block 12 from the filter press 2 of liquid and solid-state slurry filtration filter liquor.
Scaffold 4 has the installed part 14 of specific region and a plurality of spaced-apart distance to a declared goal, and pressure plare 6 and supply pipe 8 are connected on the scaffold.And rest pad 10 and filter block 12 are installed on the installed part 12 by pawl 16 (referring to Fig. 3).
At this, filter press not only can be used for waste materials to be filtered or dead catalyst, but also can be used for relating to each technology in the precision chemical field that is in solid (powder) attitude and liquid solution simultaneously, thereby wherein carry out described technology so that make the solid precipitation in the solution obtain the liquid filter liquor, perhaps only from described solution, extract solid.Particularly, comprise that the solid (powder) and the recovery solution of the mixture of hydrochloric acid or chloroazotic acid are called slurry.
As shown in Figure 3, pawl 16 stretches out from both sides, makes the rest pad 10 of filter element 13 can be installed on the installed part 14.On rest pad 10, form as lower through-hole: be formed at the upper left corner be used for by its supply water/air water/air supply through hole 32, be formed at the upper right corner be used to supply slurry slurry supply through hole 34, be formed at water/air/slurry that the lower left corner is used for discharge water/air and filter liquor and return through hole 36 and supply room 38, in described supply room, will accumulate in described chamber the cleaning of center, the slurry of drying is molded as the cake shape.
And, on the both sides at the top of each filter block 12, form two direction protrusions 42.Subsequently, filter cloth 11 is inserted in the direction protrusion 42.Usually, non-establishment fabric or other fabric can be used as filter cloth 11, as long as it can be separated out solid and only see through filter liquor.However, mentioned in the description as background technology, no matter how rest pad 10 and filter block 12 tighten together mutually securely by means of pressure plare 6, when applying the high pressure of self-pumping 26, filter liquor all can be arranged by the hole seepage on the filter cloth.
In order to prevent the filter liquor seepage, waterproof formula can be made in the edge of filter cloth 11.For example, when for several times marine glue being applied to filter cloth 11, although apply high pressure to the edge of filter cloth 11, filter liquor can seepage yet.
Make that filter cloth is waterproof also can be realized by other method.Except above-mentioned glue, can also use liquid silicon to solidify the edge of filter cloth, and then stop the seepage of filter liquor.In addition, can at high temperature extrude so that remove through hole on the filter cloth to the edge of filter cloth.Therefore, as long as can prevent the leakage of filter liquor, any method can be used.
Referring to Fig. 3, filter block 12 has with the water supply through hole 32, slurry supply through hole 34 and the water filter liquor that are formed on the rest pad 10 and returns through hole 36 corresponding through holes.In other words, filter block 12 also has water supply through hole 44, slurry supply through hole 46 and water filter liquor and returns through hole 48, and filter plate 50 is positioned at the center of described filter block 12, and described filter plate 50 is corresponding with the supporting chamber 38 of rest pad 10.
Be similar to the shape of supply room 38, filter plate 50 is square or octagonal, and locates or vertically be molded with betwixt a plurality of fluid flow passages grooves 51 at polygonal periphery.Therefore, the remaining filter liquor after solid is separated out by filter cloth or water/air can flow through fluid flow passages groove 51.
Supply circulation canal 54 is positioned at filter plate 50 inboards.A plurality of water/air/filter liquor outlet 58 is overmolded to the lower end of a side (a) of filter plate 50, and a plurality of water/air intakes 56 are overmolded to the upper end of the opposite side (b) of filter plate 50.And, formed water/air supply orifice 60 so that connect water/air supply through hole 44 and supply circulation canal 54, and formed water/air/filter liquor return aperture 70 so that connection water/air/filter liquor is returned through hole 48 and supply circulation canal 54.
Under the situation of the filter press of correlation technique, water/air intake 56 and water/air/filter liquor outlet 58 is formed at the top and bottom of the filter plate 50 of filter block 12 respectively.More specifically, water/air intake 56 and water/air/filter liquor outlet 58 is designed to stride across and pass the filter plate 50 of filter block 50.Therefore, the filter press of correlation technique is mainly used in the solid that keeps in the slurry and is cake shape form, and only discharges liquid filter liquor or water.On the contrary, the filter press that precision chemical of the present invention is used is arranged for additional clean operation, even because the success and the failure of business efficiency or business are all being controlled in a small amount of increase of percentage output.In order to finish cleaning, utilization is cleaned the solid cake from the water of the extremely relative opposite side of an effluent of cake.
For this purpose, 58 of water/air/filter liquor outlets are formed in the lower end of a side (a) of filter plate 50 of filter block 12, and the lower end closed of the opposite side (b) of the filter plate 50 of filter block 12.And, 56 of water/air intakes are formed in the upper end of described opposite side (b) of filter plate 50, and the upper end closed of a described side (a) of the filter plate 50 of filter block 12, thus, from the water of the upper end of the described opposite side (b) of filter plate 50 through and clean described solid, and be disposed to the lower end of a side (a) of filter plate 50.Because water flows along a direction, so the filtration/cleaning function of filter press of the present invention is far superior to the filter press of correlation technique.
Now, below will illustrate in greater detail and have according to the precision chemical of said structure of the present invention operational circumstances with efficient filter press.The operation of filter press mainly is divided into pre-filtering, filtration and cleaning/washing step.
At first, the slurry that will be in liquid and solid-state is stored in one the case.And by means of pawl 16, every pair of rest pad 10 of filter element 13 and filter block are installed on respectively on the installed part 14 of filter press 2.
At this moment, the direction protrusion 42 of filter block 12 inserts the hole of the upper end that is arranged in filter cloth 11.In this manner, filter cloth 11 is between rest pad that is arranged alternately and filter block, and more specifically, each filter cloth 11 is positioned on the both sides of supply room 38 of rest pad 10.
After being installed on rest pad 10 and filter block 12 on the installed part 14, console switch 18 is connected.Subsequently, double-acting cylinder 22 travels forward, and pressure plare 6 applies 150-250kg/cm to rest pad 10
2Pressure.When by 6 pairs of rest pads of pressure plare 10 pressurization, rest pad 10 and the filter block 12 that is attached to filter cloth 11 are just fastening mutually securely on installed part.
By being depressed into rest pad 10, just finish pre-filtration step with the filter block 12 of filter cloth 11.For ensuing filtration step, the slurry supply valve 30 of supply pipe 8 is open, and water/air supply valve 28 keeps cutting out.
As shown in Figure 6, when by means of pump 26 supply slurries, slurry just flows into by the slurry supply through hole 34 of rest pad 10, and accumulates in the supply room 38 by slurry supply orifice 40.Unnecessary slurry enters in other supply room 38 of supply piece 10 of continuous setting.
Slurry in the supply room 38 of rest pad 10 is accepted between 4-10kg/cm
2Pump pressure 26 in the scope.Therefore, the solid in the slurry will separate out and remain on the filter cloth 11, and filter liquor will be passed filter cloth 11 and flow out on the filter plate 50 of adjacent filter block 12.Then, filter liquor is just moved along the fluid flow passages groove 51 of filter plate 50, flow through water/air in a side (a) lower end that is formed at filter plate 50/filter liquor outlet 58, return through hole 70 through supply circulation canal 54, water/air/filter liquor successively at last and flow out to water/air/filter liquor and return through hole 48 and then flow out to the outside.Correspondingly, when slurry was full of supply room 38 fully by means of high-pressure pump, described slurry just became high fine and close cake shape.
In filtration step, after by slurry supply through hole 34 supply slurries, next clean/drying steps.In order to do like this, slurry supply valve 30 cuts out, and water/air supply valve 28 is opened, and pump 26 runnings are with in the supply wash water.
As shown in Figure 7, when water/when air supply valve 28 was opened, pump 26 pumps water then made water flow through the water/air supply through hole 32 of rest pad 10.Subsequently, water enters the water of filter block 12/air supply through hole 44, and accumulates in the supply circulation canal 54 through water/air supply orifice of being connected with the supply circulation canal 54 of filter plate 50.
More specifically, part water is filled supply circulation canal 54 from the water/air supply through hole 44 of filter block, and unnecessary water enters supply circulation canal 54 by the water/air supply through hole 44 of next filter block 12.
Subsequently, by the water/air intake 56 on the opposite side (b) that is formed at filter plate 50, the water in the supply circulation canal 54 is disposed in the fluid flow passages groove 51 of filter plate 50.Thereafter, water passes filter cloth 11 under the pressure effect that comes self-pumping 26, and washes away cake shape solid (along a direction), and described cake shape solid is by rest pad 10 supportings.In this manner, water flushing cake shape solid.
Because waterproof formula is made at the edge of filter cloth 11, so water can even water seepage can not take place yet under the situation that described water is applied high pressure, not have only cake shape solid to pass filter cloth gradually by the hole seepage on the filter cloth.In this manner, cleaning effect is improved greatly.After the cleaning, carry out the air drying steps.
The water and air that is used for described solid adopts and identical passage described in the slurry filtration step, and therefore, cleaning and dry solid are just separated out from slurry fully.
After solid is separated out from slurry, by following steps cake shape solid is taken out, promptly make double-acting cylinder 22 withdrawals by means of hydraulic pump 20, separation support piece 10 and filter block 12, and filter cloth 11 taken off from filter block 12.
Then, by pressure plare 6 rest pad 10 and filter block 12 are fixed on the installed part 14 once more.By repeating this technology, can use rest pad 10, filter block 12 and filter cloth 11 repeatedly.
Although the present invention is illustrated and describes with reference to certain preferred embodiment of the present invention, but those skilled in the art will be understood that, under the situation that does not deviate from the spirit of the present invention that limits by appended claims and scope, various variations can made aspect form and the details.
Industrial applicibility
In a word, filter press of the present invention has the following advantages.
The first, owing to the edge system for the filter cloth that reclaims the expensive heavy metal that comprises PGM Become waterproof formula, so the leakage rate minimum of chloroazotic acid does not have stench to send from chloroazotic acid, and the worker The security of doing the place is improved.
The second, cleaning (or flushing) function is improved greatly. Therefore, can see from each of vehicle Planting waste materials or the platinum of waste catalyst recovery or the recovery percentage of other metal significantly increases. Therefore, Owing to make the re-using maximization of resource, just reduced the quantity of material that needs import. Particularly, Maximum production in auto industry and the manufacturing of expensive precision chemical product, thus warp reduced The Ji cost.
Claims (7)
1. filter press that is used for precision chemical, it is by applying the solid precipitation of high pressure in will starching
On filter cloth and only filter liquor is delivered to the outside, described filter press comprises:
Scaffold apart from a plurality of parallel installed part preset distances placements;
Be installed on the pressure plare of described scaffold one side, described pressure plare moves along inside direction by the console switch operation and by drive unit;
Be installed on the supply pipe of described scaffold opposite side, described supply pipe is connected to the water supply valve that is used to supply the slurry supply valve of slurry and is used to supply water, and described herein slurry and water are by the pump supply by described console switch operation;
Be installed on the described installed part and be installed on rest pad between described pressure plare and the supply pipe, wherein, the water supply through hole that is used to supply water is formed at a upper corner place, the slurry supply through hole that is used to supply slurry is formed at another upper corner place, water/the filter liquor that is used to discharge filter liquor and/or water is returned through hole and is formed at lower corner, and form supply room in the center, described slurry accumulates in described supply room place and is molded into the cake shape, and described slurry supply through hole and described supply room communicate with each other by the slurry supply orifice;
Be installed on the described installed part as a unit and be installed on filter block between described pressure plare and the supply pipe according to concerning one to one, wherein form filter block water supply through hole, filter block slurry supply through hole and filter block water/filter liquor on the corresponding position of through hole respectively and return through hole returning with described water supply through hole, slurry supply through hole and the water/filter liquor of described rest pad with rest pad; With the corresponding position of described supply room of described rest pad on form the supply circulation canal; And form and have a plurality of filter plates that are used for through the groove of filter liquor, described supply circulation canal is positioned at described filter plate inboard, described filter plate comprises a plurality of water/filter liquor outlet of the lower end that is positioned at a side and is positioned at a plurality of water inlets of the upper end of opposite side, wherein said filter block water supply through hole and described supply circulation canal communicate with each other by the water supply orifice, and described filter block water/filter liquor is returned through hole and the supply circulation canal communicates with each other by water/filter liquor return aperture; And
The filter cloth that between described rest pad and described filter block, is used to separate described supply room and described filter plate,
Wherein, waterproof formula is made at the edge of described filter cloth, thereby prevents owing to apply the caused filter liquor seepage of high pressure.
2. filter press according to claim 1 wherein, applies several glue so that the edge of described filter cloth is waterproof to the edge of described filter cloth.
3. filter press according to claim 1 wherein, is injected to the edge of described filter cloth with liquid silicon, perhaps applies suitable heat and pressure to the edge of described filter cloth and removes hole on the described edge, thereby make that the edge of described filter cloth is waterproof.
4. filter press according to claim 1, wherein, described drive unit is the hydraulic pump that can produce hydraulic coupling.
5. filter press according to claim 1, wherein, upper end at described filter block forms direction protrusion, and form and the corresponding hole of described direction protrusion in the center of described filter cloth, by described direction protrusion being inserted in the described hole described filter cloth is attached on the described filter block thus.
6. filter press according to claim 1 wherein, form pawl on the both sides of described filter block, and described pawl is bearing on the described installed part.
7. filter press according to claim 1 wherein, is used to supply the water supply through hole of water and filter block water supply through hole and is and can supply compressed air and the solid of water flushing is carried out dry water/air supply through hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030089811 | 2003-12-10 | ||
| KR1020030089811A KR100765380B1 (en) | 2003-12-10 | 2003-12-10 | The high-efficient filter press for precision chemistry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1890011A CN1890011A (en) | 2007-01-03 |
| CN100435906C true CN100435906C (en) | 2008-11-26 |
Family
ID=34675730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800367496A Expired - Fee Related CN100435906C (en) | 2003-12-10 | 2004-11-05 | High-efficient filter press for precision chemistry |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4863879B2 (en) |
| KR (1) | KR100765380B1 (en) |
| CN (1) | CN100435906C (en) |
| HK (1) | HK1100534A1 (en) |
| WO (1) | WO2005056157A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100848860B1 (en) * | 2007-07-27 | 2008-07-29 | 김홍식 | Attachment structure of filter for filter-presser |
| KR101308170B1 (en) * | 2013-07-26 | 2013-09-12 | 한준희 | Filter press with sludge treatment system |
| US20150197829A1 (en) * | 2014-01-16 | 2015-07-16 | Nelson Rivera | Computer gold recovery kit |
| BR112019000142B1 (en) * | 2016-07-11 | 2024-01-09 | Metso Outotec Finland Oy | HORIZONTAL FILTER PRESS, FILTER SYSTEM COMPRISING HORIZONTAL FILTER PRESS, AND METHOD OF OPERATION OF A HORIZONTAL FILTER PRESS |
| CN107827269B (en) * | 2017-12-14 | 2023-11-24 | 重庆富普新材料有限公司 | Concrete sewage recovery system |
| CN109499121B (en) * | 2018-12-26 | 2024-02-20 | 河南省福可思环保科技有限公司 | Filter press for deep dehydration of biochemical sludge without heat source |
| KR102461500B1 (en) * | 2021-02-03 | 2022-10-31 | 강봉현 | Compressive Typed Dehydrating Machine Using Hiper Pressure |
| KR102493583B1 (en) | 2021-04-28 | 2023-01-31 | 주식회사 대한엔바이로테크 | Sludge dehydrator |
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|---|---|---|---|---|
| JPH09276614A (en) * | 1996-04-10 | 1997-10-28 | Maeda Corp | Dehydrating apparatus |
| US6132608A (en) * | 1997-10-06 | 2000-10-17 | Cuno Incorporated | Optimized wax for sealing the edge of a filter sheet |
| JP2002113307A (en) * | 2000-10-06 | 2002-04-16 | Togami Electric Mfg Co Ltd | Filter unit for filter press, filter press using the same and method for taking cake out from the filter press |
| KR20030040614A (en) * | 2001-11-15 | 2003-05-23 | 경윤현 | Filter plate and vacuum drying apparatus using the plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4611027Y1 (en) * | 1967-09-11 | 1971-04-16 | ||
| JPS50128772A (en) * | 1974-03-30 | 1975-10-11 | ||
| JPS6023843B2 (en) * | 1982-04-12 | 1985-06-10 | 超音波株式会社 | Filter press filter frame |
| JPS6013207A (en) * | 1983-07-04 | 1985-01-23 | Nippon Telegr & Teleph Corp <Ntt> | Method for measuring elongation strain using optical fiber |
| JP3431689B2 (en) * | 1994-07-19 | 2003-07-28 | 株式会社栗田機械製作所 | Filter cloth for filter press |
| JPH0889712A (en) * | 1994-09-20 | 1996-04-09 | Takeda Chem Ind Ltd | Method for recovering cake from filter press and frame of filter press |
| JP3174242B2 (en) * | 1995-04-28 | 2001-06-11 | 株式会社伊藤製作所 | Filter plate and filter frame in filter press |
| JP3959206B2 (en) | 1999-08-27 | 2007-08-15 | 東洋建設株式会社 | Sludge dewatering equipment |
| JP2002126411A (en) * | 2000-10-24 | 2002-05-08 | Denbe Kawamura | Press filter for slurry |
| JP2002210500A (en) * | 2001-01-16 | 2002-07-30 | Togami Electric Mfg Co Ltd | Apparatus and method for flocculating and dehydrating solid-liquid mixture |
| KR20020082047A (en) * | 2001-04-23 | 2002-10-30 | 경윤현 | Filter press |
| KR200320055Y1 (en) | 2003-04-09 | 2003-07-18 | 김용식 | Structure that filter cloth is covered, in filter plate of filter press |
| KR200327878Y1 (en) | 2003-06-24 | 2003-09-26 | 김홍식 | a filter plate of filter-presser |
-
2003
- 2003-12-10 KR KR1020030089811A patent/KR100765380B1/en active IP Right Grant
-
2004
- 2004-11-05 JP JP2006543732A patent/JP4863879B2/en active Active
- 2004-11-05 WO PCT/KR2004/002827 patent/WO2005056157A1/en active Application Filing
- 2004-11-05 CN CNB2004800367496A patent/CN100435906C/en not_active Expired - Fee Related
-
2007
- 2007-06-29 HK HK07107011.3A patent/HK1100534A1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09276614A (en) * | 1996-04-10 | 1997-10-28 | Maeda Corp | Dehydrating apparatus |
| US6132608A (en) * | 1997-10-06 | 2000-10-17 | Cuno Incorporated | Optimized wax for sealing the edge of a filter sheet |
| JP2002113307A (en) * | 2000-10-06 | 2002-04-16 | Togami Electric Mfg Co Ltd | Filter unit for filter press, filter press using the same and method for taking cake out from the filter press |
| KR20030040614A (en) * | 2001-11-15 | 2003-05-23 | 경윤현 | Filter plate and vacuum drying apparatus using the plate |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050056755A (en) | 2005-06-16 |
| WO2005056157A1 (en) | 2005-06-23 |
| KR100765380B1 (en) | 2007-10-10 |
| CN1890011A (en) | 2007-01-03 |
| JP2007512958A (en) | 2007-05-24 |
| JP4863879B2 (en) | 2012-01-25 |
| HK1100534A1 (en) | 2007-09-21 |
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