CN101891447A - Method for preparing low-carbon high-efficiency composite magnesium silicate energy-saving thermal insulation material - Google Patents
Method for preparing low-carbon high-efficiency composite magnesium silicate energy-saving thermal insulation material Download PDFInfo
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Abstract
The invention provides a method for preparing a low-carbon high-efficiency composite magnesium silicate energy-saving thermal insulation material. The method comprises the following steps of: 1) selecting raw materials according to a formula; 2) preparing a soaking material; 3) preparing an electric heating material; 4) performing planetary heating and stirring on the soaking material, the electric heating material and other raw materials for 10 to 20 minutes; and 5) defoaming. The method has the advantages that: the traditional producing process of similar products is eliminated, water is not added into a stirrer any more, the electric heating reaction is adopted, the method of electric heating and stirring shortens production time, reduces production cost, and truly achieves zero pollution and zero emission; and the method has extremely high social and economical benefits, and is suitable for popularization and application on a large scale.
Description
Technical field
The present invention relates to a kind of energy-saving and heat-insulating material preparation method, is a kind of preparation method of low-carbon high-efficiency composite magnesium silicate energy-saving thermal insulation material specifically.
Background technology
In recent years, enter the stage of high speed development along with national economic development, industries such as domestic chemical industry, oil, electric power, metallurgy, light industry, food, medicine, traffic, national defence, annual requirement to lagging material reaches 1,500,000,000 cubes, wherein, the market requirement to magnesium silicate insulating material has reached 500,000,000 cubes, and average annual demand amplification is up to more than 25%.Particularly country has further enlarged domestic demand to magnesium silicate insulating material to the policy of construction industry pressure use high-quality lagging material.And the market requirement and widespread use in the face of growing at top speed, magnesium silicate insulating material is had higher requirement, want not only that thermal conductivity is lower, use temperature is wideer, bonding force is stronger, and require heat impact strength good, do not ftracture, nontoxic dustless pollution-free.Existing magnesium silicate insulating material can't reach the requirement of many Application Areass.These not only require to seek better prescription, and require that advanced more production technique is arranged.
Chinese patent literature discloses a kind of " magnesium metasilicate heat preservation, lagging material and preparation method thereof (publication number CN101139176A).Each recipe ingredient of this material and mass percent thereof are: sepiolite 2.5～5.0%, polygorskite 0.0～4.0%, snake aminanthine 2.5～5.0%, water glass 2.0～5.0%, perlite 2.5～5.0%, binding agent 4.5～6.5%, titanium dioxide 0.0～0.2%, permeate agent 0.6～0.9%, industrial sodium nitrate 0.4～0.8%, dihydro aluminum phosphate 0.4～0.8%, water 75～82%, high-purity aluminosilicate fiber cotton 0.4～0.5%; Its preparation method includes: the 1) preparation of binding agent, the 2) preparation and 3 of clay material) the preparation three big processes of plate, pipe profile.Adopt the thermal conductivity of the lagging material that this patented technology is made for 0.043W/mK, safe handling temperature range to be at normal temperatures :-45 ℃～800 ℃.Though its Application Areas is wide, can produce social, economic benefit, but the problem that exists is: the stirring technique and the method that still adopt traditional water filling in stirrer, the water filling that does not stop is stirred needs long stirring operation, make workman's labour coefficient strong, cost is higher relatively, and not environmental protection and energy saving.Simultaneously, the thermal conductivity height of this lagging material, use temperature scope are little; Cohesive force sticking power is general, still need weld the lagging material spreading piece on the scope of operation sometimes, could be with this lagging material bonding attached on the comparatively complicated workpiece of some shapes.There are some researches show, if be in for a long time in the chrysotile environment of high density, can produce harmful effect to lung, therefore, this lagging material is not easy to safety in production and labour protection.
Chinese patent literature also discloses a kind of " micro-porous magnesium silicate insulating material and production method thereof (publication number CN1097182A); each component and the weight percent thereof of this magnesium silicate insulating material are: sepiolite powder 1～3%; perlite powder 1～3%; asbestos 2～6%; quickly penetrating agent 0.5～1.5%; latex 1～3%, silica gel 2～6%, water 80～93%, each component summation is 100%, after each component stirred again oven dry just can obtain micro-porous magnesium silicate insulating material, after processing, can be made into various moulding lagging materials such as plate, pipe, felt, special-shaped housing.Its thermal conductivity is 0.052W/mK at normal temperatures, and the Applicable temperature scope is :-40 ℃～600 ℃, certain resistance to compression, tensile strength and elasticity are arranged.But the problem that exists is: still adopt the stirring technique and the method for traditional water filling in stirrer, the water filling that does not stop is stirred needs long stirring operation, makes that workman's labour coefficient is strong, cost is higher relatively, and not environmental protection and energy saving.Simultaneously, thermal conductivity height, the use temperature scope of this lagging material is little, cohesive force sticking power is general, sometimes also need lagging material is molded over the construction material surface, just can carry out follow-up construction, how do not mention the performance of this lagging material under the rapid heat cycle situation, do not mention that can this lagging material reclaim circulation and re-use.Asbestos itself and toxicological harmless, but asbestos have small fibrous magnesium silicate, in fibrous magnesium silicate is inhaled into human body, will adhere to and be deposited on lung, cause pulmonary disorder, as: asbestosis, knurl between the skin of pleura and peritonaeum.These pulmonary disorders often have very long latent period (the general 15-20 of lung cancer, mesothelioma 20-40), cause lung cancer when serious.Asbestos have been carcinogens by IARC certainly.Therefore, this lagging material is not easy to safety in production and labour protection.
Summary of the invention
The objective of the invention is to address the above problem, provide a kind of production time short, cost is low, the Magnesium Silicate q-agent energy-saving and heat-insulating material production method of zero zero emission.
Realize that technical scheme of the present invention is:
A kind of method for preparing low-carbon high-efficiency composite magnesium silicate energy-saving thermal insulation material, this method comprises following technical process:
1) chooses raw material according to following prescription (by weight percentage)
Sepiolite 21%～27%, silicate pulping cotton 10%～13%, perlite 6%～8%, diatomite 5%～7%, water glass 1%～3%, magnesia 1%～2%, pure aluminium silicate high temperature cotton 14%～23%, brucite 14%～22%, high-temperature agglomerant 6%～8%, stablizer 1%～3%, permeate agent 3%～4%;
2) with sepiolite, the cotton permeate agent that adds of silicate pulping, add 80 ℃～120 ℃ water again, soaked 30 minutes～60 minutes, obtain soaking material;
3) pure aluminium silicate high temperature cotton, brucite, magnesia and stablizer are added water, electrically heated to 80 ℃～120 ℃ was stirred 30 minutes～40 minutes, obtained the electrically heated material;
4) with 2), 3) in the immersion material, electrically heated material that obtain mix, add perlite, diatomite, water glass, high-temperature agglomerant and water, electrically heated to 150 ℃～200 ℃, planetary stirring 10～20 minutes;
5) froth breaking is 1 hour～2 hours.
Described prescription adopts the selected starting material of computer to fill a prescription.
The preferred weight per distribution ratio of described prescription is:
Sepiolite 21%～25%, silicate pulping cotton 10%～12%, perlite 6%～8%, diatomite 6%～7%, water glass 1%～2%, magnesia 1%～2%, pure aluminium silicate high temperature cotton 17%～23%, brucite 19%～22%, high-temperature agglomerant 7%～8%, stablizer 1%～2%, permeate agent: 3.5%～4%.
The optimum weight per distribution ratio of described prescription is:
Sepiolite 21%, silicate pulping cotton 10%, perlite 6%, diatomite 6%, water glass 2%, magnesia 1%, pure aluminium silicate high temperature cotton 20%, brucite 20%, high-temperature agglomerant 8%, stablizer 2%, permeate agent 4%.
Described stablizer is a liquid alkali barium zinc mixture, alkali: barium zinc=1: 2 weight part.
Described permeate agent is fast T, JFC or JFC-M.
Described high-temperature agglomerant is 831 glue or aluminium dihydrogen phosphate.
Described planetary heated and stirred adopts planetary heated and stirred equipment, has the adverse current relative movement between the suspension sheave of this equipment, planet shovel, the side rubbing board three.
Method for preparing low-carbon high-efficiency composite magnesium silicate energy-saving thermal insulation material beneficial effect of the present invention shows:
1, prescription aspect: concrete prescription of the present invention has added brucite fiber, diatomite and magnesia on traditional technical formula basis.Brucite, diatomite, magnesia can strengthen the flexibility of lagging material as a kind of software lagging material.Diatomite has that porosity is big, absorptivity is strong, chemical property is stable, wear-resisting, heat-resisting, excellent surface property, increase-volume, thickening are arranged and improve sticking power, can shorten time of drying, not fire, sound insulation, waterproof, in light weight, heat insulation and preservation effect is excellent, dehumidifying, deodorizing, effect such as purify the air of a room; Magnesia has the extremely fireproof insulating property, and it expands and does not produce contraction and crack, and the better cracking resistance energy is arranged; Brucite is a kind of natural mineral fiber, increases the suppleness of material, improves insulation effect, and it can replace asbestos and sepiolite to award expanding with heat and contract with cold of adjusting compound insulating material, prevents cracking.Compare CN101139176A and CN1097182A, colourless, tasteless, the no carcinogens of all raw material that the present invention adopts does not contain toxic chemical substance; skin irritation not; dust and fibre content are little, and can keep the cleaning of working-yard, are easy to safety in production and labour protection.
2, processing method aspect: compare CN101139176A and CN1097182A, the present invention does not use the traditional processing technology of like product, no longer adopt stirrer machinery stirring method, but adopt the method that makes material in electric heating reacting kettle, carry out the electrically heated reaction.So promptly shorten the production time, reduced production cost again, reduced heat effect, reduce carbon emission, really accomplished zero zero emission.
3, social benefit and economic benefit height: by 10,000 m
3The Magnesium Silicate q-agent meter will use to save 300,000 tons in coal the year after next, can use for the big factory that consumes 10,000 tons in coal 30 year, if the whole nation year use 5,000 ten thousand m
3Rice silicic acid lagging material, a year saving coal reaches 1,500,000,000 tons of coals.Therefore directly be equivalent to 20% of national coal production, use, chain benefit is all very considerable.It is antifreeze that the present invention can be widely used in heat insulating, the cold insulation of heat power equipment, particularly special-shaped equipment, aspects such as building energy conservation.No matter be to use, there is not any risk in each fields such as light industry, chemical industry, machinery, electronics, metallurgy, weaving, food, building, civilian and war industrys.Therefore DEVELOPMENT PROSPECT is very tempting, to device miniaturization, and the insulation high efficiency, insulation of micromodule equipment parts and protection, the insulation of precision instrument, cryogenic liquid heat insulation all has good use value at sound insulation, insulation, space flight, nuclear industry and covil construction etc.
4, detect through units such as China Testing Technology Institute, power construction institute of national energy portion, Ministry of Public Security Sichuan fire-fighting scientific research institution, Sichuan building scientific research institutes, the every technical indicator of lagging material that adopts the inventive method to make all arrives and has surpassed state-set standard, belongs to latest domestic generation lagging material.The product of the inventive method system of employing has following feature:
A) surface density (P): 180 ± 20kg/m3 well below GB, belongs to light heat insulation material;
B) thermal conductivity (λ): 0.041w/m.k (0.037Kcal/m.h. ℃) is lower than CN101139176A and CN1097182A, and heat-insulating property is superior especially;
C) specific absorption (λ) :≤0.5%;
D) linear shrinkage ratio (H) :≤2%;
E) potential of hydrogen (pH value): 7～7.5;
F) hydrophobic rate: 〉=90%;
G) anti-refringence (R): 〉=0.3kPa;
H) ultimate compression strength (o): 〉=0.3kPa; This material self bonds, and also has certain toughness, can bear collision.
I) safe handling temperature :-50 ℃～+ 1000 ℃; + 800 ℃～+ 1700 ℃, use range than CN101139176A and CN1097182A is wider, this product stands acute cold testing (195 ℃) and does not deform and ftracture under liquid nitrogen temperature, under blowtorch, heat, still excellent, prove that this material has heat impact strength, its insulation cold insulation effect is constant, stable performance.
J) cohesive strength is 0.25kg/cm
2Adhesiveproperties is good, easy construction, and plasticity-is strong, does not need other subsidiary material during construction, saves human and material resources and financial resources greatly, and is easy to check seepage and repairing.
K) combustionproperty rank: not so property A level; Test shows: heating (1700 ℃) is not fired under blowtorch, according to detection, with the Magnesium Silicate q-agent applying material on three 200 * 25 * 10 millimeters charcoals, or make on three 200 * 200 * 200 millimeters wooden cases with the 5mm plank, requirement is smeared complete, flawless, hole, drying is placed on ignition in 50 kilograms of timber.After timber burnouted, interior middle charcoal fire wooden case was intact.Cut charcoal and wooden case, do not have and catch fire and burn pattern.
L) ecological, environmental protective performance: ventilative, recyclable recycling; Lagging material of the present invention is nontoxic dustless, does not stimulate human body, and pH value does not stimulate human body skin 7～7.5 in addition, thereby is beneficial to environment protection and labour protection.
M) freeze-thawing resistant:, heat to subzero 195 ℃ from the greenhouse quenching, repeat twice in 120 hours to 600 ℃ above freezing.The test specimen contoured surface is flawless, bubbling, peel off and metachromatism.
N) simultaneously, this lagging material has anti-corrosion function, long service life, not aging.
Figure of description
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Technical solution of the present invention content and following embodiment only are the preferable spans that experiment draws, and are not accurate extreme value, suitably depart from the interval end value of the present invention, also can access the basic identical effect with the present invention, belong to the scope of protection of the invention equally.
Embodiment 1:
Prescription with each cube product is to calculate by technique scheme per-cent, and total amount is 100%.This lagging material, each feed composition is by weight percentage: sepiolite 21%, silicate pulping cotton 13%, perlite 6%, diatomite 7%, water glass 1%, magnesia 1%, pure aluminium silicate high temperature cotton 23%, brucite 14%, 831 glue 8%, and liquid alkali barium zinc mixture (alkali wherein: barium zinc=1: 2 (weight part)) 2%, fast T (aerosol-OT salt) 4%.Preparation liquid alkali barium zinc mixture: get alkali 1 weight part, barium zinc 2 weight parts.
As shown in Figure 1, production stage is as follows:
1) by above composition of raw materials, described prescription adopts the selected starting material of computer to fill a prescription.And all materials are screened, reject impurity, comminuting matter is to prescribed level.
2) with sepiolite, the fast T of the cotton adding of silicate pulping, the water that adds 80 ℃ again, sepiolite, the weight of the cotton and fast T of silicate pulping and the weight ratio of water are 1～3: 7～9 weight parts, present embodiment is got described weight ratio=3: 7 weight parts, soaked about 55 minutes, and obtained soaking material.
3) pure aluminium silicate high temperature cotton, brucite, magnesia and liquid alkali barium zinc mixture are added water, the weight of pure aluminium silicate high temperature cotton, brucite, magnesia and liquid alkali barium zinc mixture and the weight ratio of water are 5～6: 4～5 weight parts, present embodiment is got weight ratio=5: 5 weight parts, pours in the electric heating reacting kettle.Start the reactor switch, the reactor stirrer is stirred, and temperature is increased to about 85 ℃, stirred about 38 minutes, treat that material all dissolves the back shutdown in the still, obtain the electrically heated material.
4) will soak material, electrically heated material and perlite, diatomite, water glass and 831 glue and add water, soaking material, electrically heated material and the weight of perlite, diatomite, water glass and 831 glue and the weight ratio of water is 1～3: 7～9 weight parts, and present embodiment is got described weight ratio=3: 7 weight parts.Pour above-mentioned material in the planetary heated and stirred machine (between the suspension sheave of this heated and stirred equipment, planet shovel, the side rubbing board three is the adverse current relative movement) together, make material in machine, not only do tangential movement but also do vertical movement, the stirring built-in temperature is reached about 150 ℃.Stir after 20 minutes, material both can be uniformly mixed.
That the material particles of taking present method mix to stir is difficult for is broken, not feed back, mixing quality height.Improve production efficiency so greatly, reduced energy consumption.And complete machine good seal, no dust, noise is low, discharging is clean rapidly, easy to use.Add functional one package stabilizer.Superior thermostability and oilness, the old property of anti-light can improve the heat-insulating property of mineral filler.Stir as add water with traditional stirrer, reach production requirement and go out product and need stir 4 hours.
5) froth breaking is 1 hour～2 hours.
6) can directly obtain the coating of dense and burned slurry shape behind the froth breaking, directly tinning obtains finished product; Also can lagging material be carried out post-production, make plate miscellaneous, felt etc. according to different needs.
Embodiment 2:
Prescription with each cube product is to calculate by technique scheme per-cent, and total amount is 100%.This lagging material, each feed composition is filled a prescription by weight percentage: sepiolite 25%, silicate pulping cotton 10%, perlite 6%, diatomite 6%, water glass 2%, magnesia 2%, pure aluminium silicate high temperature cotton 17%, brucite 19%, aluminium dihydrogen phosphate 7%, liquid alkali barium zinc mixture 3%, fast T (aerosol-OT salt) 3%.Preparation liquid alkali barium zinc mixture: get alkali 1 weight part, barium zinc 2 weight parts.
As shown in Figure 1, production stage is as follows:
1) by above composition of raw materials, described prescription adopts the selected starting material of computer to fill a prescription.And all materials are screened, reject impurity, comminuting matter is to prescribed level.
2) with sepiolite, the fast T of the cotton adding of silicate pulping, add 100 ℃ water again, sepiolite, the weight of the cotton and fast T of silicate pulping and weight ratio=2: 8 weight parts of water soaked about 45 minutes, obtained soaking material.
3) pure aluminium silicate high temperature cotton, brucite, magnesia and liquid alkali barium zinc mixture are added water, pure aluminium silicate high temperature cotton, brucite, magnesia and the weight of liquid alkali barium zinc mixture and weight ratio=6: 4 weight parts of water are poured in the electric heating reacting kettle.Start the reactor switch, the reactor stirrer is stirred, and temperature is increased to about 100 ℃, stirred about 35 minutes, treat that material all dissolves the back shutdown in the still, obtain the electrically heated material.
4) will soak material, electrically heated material and perlite, diatomite, water glass and aluminium dihydrogen phosphate and add water, soak material, electrically heated material and the weight of perlite, diatomite, water glass and aluminium dihydrogen phosphate and weight ratio=2: 8 weight parts of water.Pour above-mentioned material in the planetary heated and stirred machine (between the suspension sheave of this heated and stirred equipment, planet shovel, the side rubbing board three is the adverse current relative movement) together, make material in machine, not only do tangential movement but also do vertical movement, the stirring built-in temperature is reached about 180 ℃.Stir after 15 minutes, material both can be uniformly mixed.
5) froth breaking is about 1.5 hours.
6) can directly obtain the coating of dense and burned slurry shape behind the froth breaking, directly tinning obtains finished product; Also can lagging material be carried out post-production, make plate miscellaneous, felt etc. according to different needs.
Embodiment 3:
Prescription with each cube product is to calculate by technique scheme per-cent, and total amount is 100%.This lagging material, each feed composition is filled a prescription by weight percentage: sepiolite 27%, silicate pulping cotton 12%, perlite 8%, diatomite 5%, water glass 1%, magnesia 1%, pure aluminium silicate high temperature cotton 14%, brucite 22%, 831 glue 6%, liquid alkali barium zinc mixture 1%, JFC-M (based on the polyoxyethylene ether compound, drink add some high-efficient penetrants are composite to form) 3%.Preparation liquid alkali barium zinc mixture: get alkali 1 weight part, barium zinc 2 weight parts.
As shown in Figure 1, production stage is as follows:
1) by above composition of raw materials, described prescription adopts the selected starting material of computer to fill a prescription.And all materials are screened, reject impurity, comminuting matter is to prescribed level.
2) with sepiolite, the cotton JFC-M that adds of silicate pulping, add 120 ℃ water again, the weight of sepiolite, silicate pulping cotton and JFC-M and the weight ratio of water=1: 9 weight part soaked about 40 minutes, obtained soaking material.
3) pure aluminium silicate high temperature cotton, brucite, magnesia and liquid alkali barium zinc mixture are added water, pure aluminium silicate high temperature cotton, brucite, magnesia and the weight of liquid alkali barium zinc mixture and weight ratio=5: 5 weight parts of water are poured in the electric heating reacting kettle.Start the reactor switch, the reactor stirrer is stirred, and temperature is increased to about 90 ℃, stirred about 35 minutes, treat that material all dissolves the back shutdown in the still, obtain the electrically heated material.
4) will soak material, electrically heated material and perlite, diatomite, water glass and 831 glue and add water, soak material, electrically heated material and the weight of perlite, diatomite, water glass and 831 glue and weight ratio=1: 9 weight part of water.Pour above-mentioned material in the planetary heated and stirred machine (between the suspension sheave of this heated and stirred equipment, planet shovel, the side rubbing board three is the adverse current relative movement) together, make material in machine, not only do tangential movement but also do vertical movement, the stirring built-in temperature is reached about 190 ℃.Stir after 12 minutes, material both can be uniformly mixed.
5) froth breaking is 1.5 hours～2 hours.
6) can directly obtain the coating of dense and burned slurry shape behind the froth breaking, directly tinning obtains finished product; Also can lagging material be carried out post-production, make plate miscellaneous, felt etc. according to different needs.
Embodiment 4:
Prescription with each cube product is to calculate by technique scheme per-cent, and total amount is 100%.This lagging material, each feed composition is filled a prescription by weight percentage: sepiolite 21%, silicate pulping cotton 13%, perlite 6%, diatomite 6%, water glass 3%, magnesia 1%, pure aluminium silicate high temperature cotton 23%, brucite 14%, 831 glue 7.5%, and liquid alkali barium zinc mixture (alkali: barium zinc=1: 2 weight part) 2%, JFC (fatty alcohol-polyoxyethylene ether) 3.5%.Preparation liquid alkali barium zinc mixture: get alkali 1 weight part, barium zinc 2 weight parts.
As shown in Figure 1, production stage is as follows:
1) by above composition of raw materials, described prescription adopts the selected starting material of computer to fill a prescription.And all materials are screened, reject impurity, comminuting matter is to prescribed level.
2) with sepiolite, the cotton JFC that adds of silicate pulping, add 115 ℃ water again, the weight of sepiolite, silicate pulping cotton and JFC and the weight ratio of water=1: 9 weight part soaked about 50 minutes, obtained soaking material.
3) pure aluminium silicate high temperature cotton, brucite, magnesia and liquid alkali barium zinc mixture are added water, pure aluminium silicate high temperature cotton, brucite, magnesia and the weight of liquid alkali barium zinc mixture and weight ratio=6: 4 weight parts of water are poured in the electric heating reacting kettle.Start the reactor switch, the reactor stirrer is stirred, and temperature is increased to about 100 ℃, stirred about 35 minutes, treat that material all dissolves the back shutdown in the still, obtain the electrically heated material.
4) will soak material, electrically heated material and perlite, diatomite, water glass and 831 glue and add water, soak material, electrically heated material and the weight of perlite, diatomite, water glass and 831 glue and weight ratio=2: 8 weight parts of water.Pour above-mentioned material in the planetary heated and stirred machine (the adverse current relative movement between the suspension sheave of this heated and stirred equipment, planet shovel, the side rubbing board three) together, make material in machine, not only do tangential movement but also do vertical movement, the stirring built-in temperature is reached about 180 ℃.Stir after 15 minutes, material both can be uniformly mixed.
5) froth breaking is about 1.8 hours.
6) can directly obtain the coating of dense and burned slurry shape behind the froth breaking, directly tinning obtains finished product; Also can lagging material be carried out post-production, make plate miscellaneous, felt etc. according to different needs.
Embodiment 5:
Prescription with each cube product is to calculate by technique scheme per-cent, and total amount is 100%.This lagging material, each feed composition is filled a prescription by weight percentage: sepiolite 21%, silicate pulping cotton 10%, perlite 6%, diatomite 6%, water glass 2%, magnesia 1%, pure aluminium silicate high temperature cotton 20%, brucite 20%, 831 glue 8%, and liquid alkali barium zinc mixture (alkali wherein: barium zinc=1: 2 (weight part)) 2%, fast T (aerosol-OT salt) 4%.Preparation liquid alkali barium zinc mixture: get alkali 1 weight part, barium zinc 2 weight parts.
As shown in Figure 1, production stage is as follows:
1) by above composition of raw materials, described prescription adopts the selected starting material of computer to fill a prescription.And all materials are screened, reject impurity, comminuting matter is to prescribed level.
2) with sepiolite, the fast T of the cotton adding of silicate pulping, add 110 ℃ water again, weight ratio=2: 8 weight parts of sepiolite, silicate pulping cotton and fast T and water soaked about 40 minutes, obtained soaking material.
3) pure aluminium silicate high temperature cotton, brucite, magnesia and liquid alkali barium zinc mixture are added water, pure aluminium silicate high temperature cotton, brucite, magnesia and the weight of liquid alkali barium zinc mixture and weight ratio=6: 4 weight parts of water are poured in the electric heating reacting kettle.Start the reactor switch, the reactor stirrer is stirred, and temperature is increased to 120 ℃, stirred about 45 minutes, treat that material all dissolves the back shutdown in the still, obtain the electrically heated material.
4) will soak material, electrically heated material and perlite, diatomite, water glass and 831 glue and add water, soak material, electrically heated material and the weight of perlite, diatomite, water glass and 831 glue and weight ratio=2: 8 weight parts of water.Above-mentioned material is poured in the planetary heated and stirred machine together, (this heated and stirred equipment is the adverse current relative movement between suspension sheave, planet shovel, the side rubbing board three), make material in machine, not only do tangential movement but also do vertical movement, the stirring built-in temperature is reached about 195 ℃.Stir after 10 minutes, material both can be uniformly mixed.
5) froth breaking is 1.2 hours～2 hours.
6) can directly obtain the coating of dense and burned slurry shape behind the froth breaking, directly tinning obtains finished product; Also can lagging material be carried out post-production, make plate miscellaneous, felt etc. according to different needs.
Composite heat insulatant thermal insulation material of the present invention, raw material can adopt commercially available " virgin material ", for reducing cost, also can adopt " the old material " of original discarded lagging material through sub-electing, and " virgin material " can use by mix and match with " old material ".Brucite in the concrete component of the present invention, diatomite, magnesia, silicate pulping cotton and pure aluminium silicate high temperature cotton can be reused.Therefore, can recycle, as recycle used silicate pulping cotton or pure aluminium silicate high temperature waste cotton, to reduce the manufacturing cost of lagging material of the present invention to the waste material of above-mentioned materials.
Lagging material sample of the present invention is delivered to Sichuan Province building scientific research institute and is tested through the sampling of Deyang City Jingyang District Administration of Quality and Technology Supervision, and its assay sees Table one.
Table one lagging material sample survey of the present invention result
Claims (9)
1. method for preparing low-carbon high-efficiency composite magnesium silicate energy-saving thermal insulation material is characterized in that:
This method comprises following technical process:
1) chooses starting material (by weight percentage) according to prescription
Sepiolite 21%～27%, silicate pulping cotton 10%～13%, perlite 6%～8%, diatomite 5%～7%, water glass 1%～3%, magnesia 1%～2%, pure aluminium silicate high temperature cotton 14%～23%, brucite 14%～22%, high-temperature agglomerant 6%～8%, stablizer 1%～3%, permeate agent 3%～4%;
2) with sepiolite, the cotton permeate agent that adds of silicate pulping, add 80 ℃～120 ℃ water again, soaked 30 minutes～60 minutes, obtain soaking material;
3) pure aluminium silicate high temperature cotton, brucite, magnesia and stablizer are added water, electrically heated to 80 ℃～120 ℃ was stirred 30 minutes～40 minutes, obtained the electrically heated material;
4) with 2), 3) in the immersion material, electrically heated material that obtain mix, add perlite, diatomite, water glass, high-temperature agglomerant and water, electrically heated to 150 ℃～200 ℃, planetary stirring 10～20 minutes;
5) froth breaking is 1 hour～2 hours.
2. composite magnesium silicate energy-saving thermal insulation material preparation method according to claim 1 is characterized in that: described prescription adopts the selected starting material of computer to fill a prescription.
3. composite magnesium silicate energy-saving thermal insulation material preparation method according to claim 1 is characterized in that: each raw material is formed as following weight percent in the described prescription:
Sepiolite 21%～25%, silicate pulping cotton 10%～12%, perlite 6%～8%, diatomite 6%～7%, water glass 1%～2%, magnesia 1%～2%, pure aluminium silicate high temperature cotton 17%～23%, brucite 19%～22%, high-temperature agglomerant 7%～8%, stablizer 1%～2%, permeate agent 3.5%～4%.
4. composite magnesium silicate energy-saving thermal insulation material preparation method according to claim 1 is characterized in that: each raw material is formed as following weight percent in the described prescription:
Sepiolite 21%, silicate pulping cotton 10%, perlite 6%, diatomite 6%, water glass 2%, magnesia 1%, pure aluminium silicate high temperature cotton 20%, brucite 20%, high-temperature agglomerant 8%, stablizer 2%, permeate agent 4%.
5. according to each described composite magnesium silicate energy-saving thermal insulation material preparation method in the claim 1 to 4, it is characterized in that: described stablizer is a liquid alkali barium zinc mixture, alkali: barium zinc=1: 2 weight part.
6. according to each described composite magnesium silicate energy-saving thermal insulation material preparation method in the claim 1 to 4, it is characterized in that: described permeate agent is fast T, JFC or JFC-M.
7. according to each described composite magnesium silicate energy-saving thermal insulation material preparation method in the claim 1 to 4, it is characterized in that: described high-temperature agglomerant is 831 glue or aluminium dihydrogen phosphate.
8. composite magnesium silicate energy-saving thermal insulation material preparation method according to claim 1 is characterized in that: described planetary heated and stirred adopts planetary heated and stirred equipment.
9. composite magnesium silicate energy-saving thermal insulation material preparation method according to claim 8 is characterized in that: have the adverse current relative movement between the suspension sheave of described heated and stirred equipment, planet shovel, the side rubbing board three.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086694A (en) * | 2013-02-25 | 2013-05-08 | 于红智 | Enhanced insulating ceramic composite material as well as use thereof |
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| US3886076A (en) * | 1972-12-22 | 1975-05-27 | Pamrod Inc | Perlite thermal insulation product and method of producing same |
| CN1470471A (en) * | 2002-07-25 | 2004-01-28 | 谢文丁 | Composite efficient energy-saving heat-insulating material, and its manufacturing method and special apparatus |
| CN100337966C (en) * | 2005-12-05 | 2007-09-19 | 宜兴市侨兴环保设备厂 | Composite heat insulatant thermal insulation material |
| CN100534943C (en) * | 2007-04-18 | 2009-09-02 | 赵毅 | Magnesium metasilicate heat preservation insulating material and method for making same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3886076A (en) * | 1972-12-22 | 1975-05-27 | Pamrod Inc | Perlite thermal insulation product and method of producing same |
| CN1470471A (en) * | 2002-07-25 | 2004-01-28 | 谢文丁 | Composite efficient energy-saving heat-insulating material, and its manufacturing method and special apparatus |
| CN100337966C (en) * | 2005-12-05 | 2007-09-19 | 宜兴市侨兴环保设备厂 | Composite heat insulatant thermal insulation material |
| CN100534943C (en) * | 2007-04-18 | 2009-09-02 | 赵毅 | Magnesium metasilicate heat preservation insulating material and method for making same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103086694A (en) * | 2013-02-25 | 2013-05-08 | 于红智 | Enhanced insulating ceramic composite material as well as use thereof |
| CN103086694B (en) * | 2013-02-25 | 2015-11-04 | 于红智 | Enhancement type heat preserving ceramic composite material and uses thereof |
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