CA1134146A - Slag discharge - Google Patents

Slag discharge

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Publication number
CA1134146A
CA1134146A CA330,936A CA330936A CA1134146A CA 1134146 A CA1134146 A CA 1134146A CA 330936 A CA330936 A CA 330936A CA 1134146 A CA1134146 A CA 1134146A
Authority
CA
Canada
Prior art keywords
slag
water bath
reactor
line
waste
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA330,936A
Other languages
French (fr)
Inventor
Josef Langhoff
Jurgen Seipenbusch
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Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA1134146A publication Critical patent/CA1134146A/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46Gasification of granular or pulverulent flues in suspension
    • C10J3/48Apparatus; Plants
    • C10J3/52Ash-removing devices
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46Gasification of granular or pulverulent flues in suspension
    • C10J3/48Apparatus; Plants
    • C10J3/485Entrained flow gasifiers
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46Gasification of granular or pulverulent flues in suspension
    • C10J3/48Apparatus; Plants
    • C10J3/52Ash-removing devices
    • C10J3/526Ash-removing devices for entrained flow gasifiers
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72Other features
    • C10J3/78High-pressure apparatus
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72Other features
    • C10J3/82Gas withdrawal means
    • C10J3/84Gas withdrawal means with means for removing dust or tar from the gas
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72Other features
    • C10J3/82Gas withdrawal means
    • C10J3/84Gas withdrawal means with means for removing dust or tar from the gas
    • C10J3/845Quench rings
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72Other features
    • C10J3/86Other features combined with waste-heat boilers
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0903Feed preparation
    • C10J2300/0906Physical processes, e.g. shredding, comminuting, chopping, sorting
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913Carbonaceous raw material
    • C10J2300/093Coal
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953Gasifying agents
    • C10J2300/0959Oxygen
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953Gasifying agents
    • C10J2300/0973Water
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953Gasifying agents
    • C10J2300/0973Water
    • C10J2300/0976Water as steam
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/18Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1807Recycle loops, e.g. gas, solids, heating medium, water
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S48/00Gas: heating and illuminating
    • Y10S48/02Slagging producer

Abstract

ABSTRACT
A process for removing the slag obtained by the gasifica-tion of coal in a reactor. or in a waste-heat boiler disposed at the outlet end of the reactor and adapted to collect in a water bath either at the base of the reactor or of the waste-heat boiler, wherein oil admixed which interconnects the slag particles. By this means the slag may be more easily removed, and also uncombusted carbonaceous material therein returned to the reactor, thus im-proving the economy of the unit.

Description

~134~46 -This in~ention relates to a process and a device for removing the slag obtained by the gasification of coal in a reactor, or in a waste-heat boiler. The device of this invention is disposed at the outlet end of the reactor and adapted to collect in a water bath either at the base of the reactor or of the waste-heat boiler the ash-forming residues from the coal.
In the gasification of coal combustion respresents the decisive criterion. In case of insufficient combustion, the slag will float and cannot be discharged from the water bath, because the slag will not sink. The reactor operation would have to be interrupted at intervals, in order to remove the slag floating on the water bath. Such a discharge would have to be carried out by hand, thus representing a considerable disadvantage. The same applies to the interruption of the reactor's operation.
This invention seeks to establish a conti~Dus operation of the reactor, wherein no discharge by hand will be necessary. The scope of this invention is to be seen in removing the floatability of the slag.
According to the present invention, additives adapted to connect slag portions with one another are provided. The thus produced larger pieces of slag of medium weight, which is arrived at by the combination of the weight of the floatable and of non-floatable slag portions, ensure a sinking, or settling, of the slag pieces in the water bath.
The heavier slag portions, by their connection with the floatable lighter portions, cause the lighter, floatable ones to sink.

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.,''~ ~, : ' ~34146 According to this invention, oil, in particular heavy heating oil, is used as the additive. The heavy heating oil obtains its floatability for use in the reactor by means of preheating.
The heat carrier used to this effect is selectively either gas or steam from the gasification process.
According to another feature of this invention, the slag is - la -....

, admixed, at least in part, to the new feed material for the reactor. This offers a number of advantages, such as favourable operation of the reactor, additional combustion of previously not fully combusted slag portions and a further use of the used oil.
Any return of the slag to the feed material is preferably preceded by a grading, during which either the completely, or at least the substanti-ally combusted slag portions are removed. This is achieved by using the weight of the slag portions. The portions, being removed from the reactor by the water bath, or from the waste-heat boiler, at the outlet end of the reactor, are horizontally passed across grading hoppers, or across a grading surface. The slag portions of greater weight sink relatively fast into the ~i first hopper, or settle on the surface closest in the direction of movement, whereas the lighter slag portions sink into different hoppers, or become deposited on other surfaces at different places in accordance with their different weights.
The drawings illustrate one embodiment of this invention, in which:
Pigure 1 is a schematic overall view of those parts of a reactor plant which are essential to this invention, and ~O Figures 2 to 4 show details of the reactor according to Figure 1.
A suspension of coal and water is forced by means of a pump 28 through a conduit 2 into a burner 1. The coal used is in the form of coal dust. It is produced by means of grinding in a mill 25 and, together with water, passed to an agitator 27. The suspension of coal and water is contin-uously drawn off at the base of the agitator.
Oxygen is passed through a conduit 3 into the burner 1, together with a suspension of coal and water.
The water adhering to the coal evaporates inside the burner and -, .

" . ~ , :
.,:'," ~ , . . ., ~

~34~4~;

the coal is brought up to reaction temperature. At a temperature of approximately 1,400C and a pressure of approximately 30 bar the mixture of coal, oxygen and steam produces mainly so-called synthesis gas. It comp-rises carbon monoxide and free hydrogen and represents an important chemical raw material.
The obtained synthesis gas passes from the burner 1 into a waste heat boiler 4 which is disposed underneath the burner. The waste heat boiler likewise receives the slag portions being discharged from the burner together with the gas. The slag is predominantly obtained in a liquid form and is collected either in or on top of a water bath 5 at the base of the waste-heat boiler.
In the waste-heat boiler 4 a first cooling of the obtained synthesis gas takes place. To this effect, the waste-heat boiler is provided with a pipe wall 6. This wall has an inflow of cooling water 7 and an out-flow for the heated mixture of water and steam. According to Figure 2 the cooling-water inflow 7 terminates in a circular line 8. From this circular line extend a plurality of cooling pipes 9 which are unifo~mly distributed across the line's circumference. In these cooling pipes, all except two of which have been shown schematically by indicating only their respective centre lines, the cooling water rises by its increase in temperature.
Correspondingly, the cooling pipes 9 are uptakes.
In addition to the cooling pipes 9, there is a discharge line 10 connected to the circular line 8. The discharge line is disposed on the circular line 8 diametrically opposite to the inflow of the cooling water 7 and is of a cross-section which is adjusted to the cooling pipes 9 so that the flow of cooling medium inside the cooling pipes is not interfered with by the continuous outflow of water through the discharge line 10.
The discharge line 10 is passed about a further circular line 11 ~34146 which is disposed below the circular line ~. The circular line 11 is provided with a feed line 12 in the fashion of the circular line 8. This feed line forces heavy heating oil into the circular line 11. The heavy oil passes from the circular line 11 through a plurality of uniformly distributed nozzles 13 onto the level of the water bath 5. ~-According to Figure 2, the nozzles 13 have been disposed in two rows, one above the other, at the inner circumference of the circular line 11. The nozzles extend to the level of the water bath at different angles.
This arrangement offers the advantage that the oil discharged from the circalar line 11 moves the slag particles on the level of the water bath 5 toward the centre thereof. The individual particles are placed in intimate connection with one another so that the heavy heating oil can be optimally effective as an additive agglomerating the slag particles.
The circular line 11 is disposed slightly above the level of the bath. The nozzles 13 are fashioned of a size permitting only the production of compact jets of oil. Both features counteract an ignition of the oil and any loss of oil worth mentioning.
The heavy heating oil is pre-warmed and subsequently heated in the waste-heat boiler 4 and in the circular line 11 so as to attain the flow-ability required for passing through the lines 11 and 12 and through the nozzles 13.
The pre-heating in the feed line 12 takes place outside the waste-heat boiler 4; in as shown in Figure 3 the line 12 is passed through a container 14 which forms a heat exchanger together with the feed line 12.
The container 14 encloses the feed line in tubular fashion and is combined with a waste-gas line 15. Through this line 15 the synthesis gas produced in the reactor is discharged from the waste heat boiler 4.
The synthesis gas must undergo controlled cooling so that any ~34~9~6 undesirable synthesis reaction is prevented. For this cooling, the cooling associated with the pre-heating of the heavy heating oil is insufficient.
The waste ~as, therefore, is additionally cooled in a not illustrated waste-gas boiler. The steam thus produced, together with the steam from the waste-heat boiler 4 is passed on to any desired use. The discharge heat for this steam from the waste-heat boiler 4 has been denoted 16.
The thus cooled synthesis gas is charged with water in a subsequent step of the process. Charging is effected by means of quenching. The synthesis gas is thereby freed from undesirable ash components. The mixture Of ash and water obtained by this waste-gas washing is then condensed and the resultant water returned to the quenching and the residue, being an ash slurry, is mixed with the material charged to the reactor. This mixing of slag and feed material facilitates the arriving at the high temperatures required for gasification.
The slag accumulating in lumps in the water bath 5 of the waste-heat boiler 4 is passed open out through lock 17 which is disposed below the waste-heat boiler 4. The slag collects inside the lock until a predetermined level has been reached, whereupon the lock is closed and the slag being produced by the continuous operation of the reactor gathers in ront of the lock inlet.
After the lock inlet has been closed~ the lock outlet is opened and at a low operating pressure the slag can be removed from the lock, without interfering with the required ope~ational pressure of the reactor. A pump 18 effects the withdrawal of the slag. In accordance with Figure 4, the pump passes the slag horizontally into a container 20 which comprises a plurality of hoppers 19. Inside the container, the heavier slag particles sink into the hopper closest to the container inlet, whereas the lighter particles, because of their slower sinking speed, reach the farther removed hoppers 19.

_ 5 _ 34~46 Since weight characterizes the degree of combustion of the slag particles, it effects their classification. The slag can be removed from each of the hoppers, as desired. The required control is effected by means of a slide 21.
The slag particles pass from the hopper to a condenser 22. The water freed in the condensing process is withdrawn by a pump 21 and passed to the feed water. The condensed slag can serve different purposes. At least part of the slag is mixed with the feed material for the reactor. At least one of the lines 24 passing from the condensers 2 is therefore connected with the mill 25 which comminutes the feed material. A pump placed in the line 24 and designed, for example, as a piston-or a vane-type of pump, ensures a sufficient vement of slag in the line 24.
The line 24 is selectively coupled with the line for the return of the ash slurry which is condensed after quenching. This ash slurry will not require comminution. It may be passed immediately into the agitator 26, the agitating means of which has been denoted 27.
A pump 28 at the outlet end of the agitator 26 and conveying the ~-eed material into the burner operates at the pressure required for the reactor.
In a reactor, wherein the water bath is integrated in the burner, it can be difficult to provide the oil above the water bath, then the oil ;
may be passed in through the water bath. In that case, the circular line 11 is not slightly above but slightly below the level of the water bath 5.
This is achieved by merely raising the water level by an increase in the inflow of water.

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Claims (25)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OX PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A process for removing the slag particles obtained either by the gasification of coal in a reactor, or in a waste-heat boil-er disposed at the outlet end of such a reactor, wherein the slag is collected in a water bath at the base of the reactor or boiler, which process comprises admixing oil with the slag particl-es in order to effect their agglomeration.
2. A process according to Claim 1, wherein the oil is a heavy heating oil.
3. A process according to Claim 2, wherein the heavy heating oil is pre-heated.
4. A process according to Claim 3, wherein the pre-heating is effected by process gas and/or process steam.
5. A process according to Claim 1, wherein the oil is sprayed onto the level of the water bath in the form of jets.
6. A process according to Claim 5, wherein the jets are directed at the centre axis of the water bath.
7. A process according to either Claims 5 or 6, wherein the jets extend at different angles to the level of the water bath.
8. A process according to Claim 1, wherein at least a portion of the discharged slag is re-admixed with the feed material for the reactor.
9. A process according to Claim 8, wherein the discharged slag is classified before admixing.
10. A process according to Claim 9, wherein the slag particles are classified in accordance with their different individ-ual weights.
11. Apparatus for agglomerating the slag obtained either by the gasification of coal in a reactor, or in a waste-heat boiler disposed at the outlet of such a reactor, comprising a water bath in which the slag is collected, and a water feed pipe, a slag feed means, a slag discharge means, and at least one oil feed line connected to the water bath.
12. Apparatus according to Claim 11, wherein the feed line which is connected to the water bath, is either separate from or combined with the water feed pipe.
13. Apparatus according to Claim 12, wherein the feed line terminates above the level of the water in the water bath.
14. Apparatus according to Claim 12, wherein the feed line terminates in at least one nozzle.
15. Apparatus according to Claim 14, wherein a plurality of nozzles are disposed on the inside of a circular line around the water bath.
16. Apparatus according to Claim 15, wherein the nozzles are inclined toward the vertical central axis of the water bath.
17. Apparatus according to Claim 15, wherein the nozzles have different angles of inclination.
18. Apparatus according to Claim 17, wherein the nozzles are disposed in several rows, each row of nozzles having the same incline relative to the level of the water bath, for each row, the angle of inclination of the several rows being different.
19. Apparatus according to Claim 14, wherein the nozzles have a width of opening which causes the formation of compact jets.
20. Apparatus according to Claim 12, wherein the feed line is provided with a heating means.
21. Apparatus according to Claim 20, wherein the heating means has the configuration of a heat exchanger and is integrated in the waste-gas line and/or in the waste steam line.
22. Apparatus according to Claim 12, wherein the slag dis-charge is connected by a line with the reactor inlet for the feed material.
23. Apparatus according to Claim 22, wherein the line is con-nected with the inlet to the mill which is adapted to comminute the feed material.
24. Apparatus according to Claim 22, wherein a container, comprising a plurality of horizontally disposed hoppers, is placed in the line by means of a horizontal slag inlet extending in the longitudinal direction of the hopper arrangement.
25. Apparatus according to Claim 24, wherein at the outlet end of each separate hopper a slide and/or a condenser is placed.
CA330,936A 1978-06-29 1979-06-29 Slag discharge Expired CA1134146A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP2828562.3 1978-06-29
DE2828562A DE2828562C3 (en) 1978-06-29 1978-06-29 Slag discharge

Publications (1)

Publication Number Publication Date
CA1134146A true CA1134146A (en) 1982-10-26

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ID=6043110

Family Applications (1)

Application Number Title Priority Date Filing Date
CA330,936A Expired CA1134146A (en) 1978-06-29 1979-06-29 Slag discharge

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US (2) US4425254A (en)
EP (1) EP0012151B1 (en)
JP (1) JPS5811474B2 (en)
AU (1) AU529818B2 (en)
BR (1) BR7904148A (en)
CA (1) CA1134146A (en)
DE (2) DE2828562C3 (en)
PL (1) PL116993B1 (en)
SU (1) SU986300A3 (en)
ZA (1) ZA793255B (en)

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US9074149B2 (en) * 2009-01-21 2015-07-07 Lummus Technology Inc. Methods and systems for treating a gasification slag product
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CN106987279A (en) * 2017-05-08 2017-07-28 哈尔滨工业大学 A kind of U-shaped coal gasification reaction device of secondary separation slagging-off and the coal gasifying process that secondary separation slagging-off is carried out using the device
CN109207176B (en) * 2017-06-29 2020-11-24 神华集团有限责任公司 Pyrolysis device, pyrolysis system and pyrolysis method
CN114474819B (en) * 2022-01-12 2023-07-25 中国矿业大学 Device and method for rapid dehydration and block demolding of coal gasification fine slag
CN114890702A (en) * 2022-05-20 2022-08-12 宁夏大学 Method for preparing high-strength ceramsite by self-sintering coal gasification fine slag

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Also Published As

Publication number Publication date
BR7904148A (en) 1980-12-30
AU529818B2 (en) 1983-06-23
PL116993B1 (en) 1981-07-31
ZA793255B (en) 1981-03-25
AU4850379A (en) 1980-01-03
US4514191A (en) 1985-04-30
JPS5811474B2 (en) 1983-03-03
JPS5524594A (en) 1980-02-21
PL216681A1 (en) 1980-05-19
DE2963723D1 (en) 1982-11-04
SU986300A3 (en) 1982-12-30
EP0012151B1 (en) 1982-09-22
US4425254A (en) 1984-01-10
EP0012151A1 (en) 1980-06-25
DE2828562B2 (en) 1980-04-17
DE2828562C3 (en) 1980-12-11
DE2828562A1 (en) 1980-01-03

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