CN203174051U - Coal water slurry water-cooled wall gasification furnace in waste boiler process - Google Patents

Coal water slurry water-cooled wall gasification furnace in waste boiler process Download PDF

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Publication number
CN203174051U
CN203174051U CN2013201319496U CN201320131949U CN203174051U CN 203174051 U CN203174051 U CN 203174051U CN 2013201319496 U CN2013201319496 U CN 2013201319496U CN 201320131949 U CN201320131949 U CN 201320131949U CN 203174051 U CN203174051 U CN 203174051U
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China
Prior art keywords
vapourizing furnace
coal
waste heat
heat boiler
vaporizer
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Withdrawn - After Issue
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CN2013201319496U
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Chinese (zh)
Inventor
王锦生
孙登科
李维成
聂立
臧平伟
陈阳
李由
曹蕾
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Dongfang Boiler Group Co Ltd
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Dongfang Boiler Group Co Ltd
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    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/16Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y02E20/18Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
    • 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

Abstract

The utility model discloses a coal water slurry water-cooled wall gasification furnace in a waste boiler process, which comprises a gasification furnace, a waste heat boiler and a guide pipe; the lower end of the gasification furnace and the lower end of the waste heat boiler are connected through the guide pipe in series to form a U-shaped structure; a gasification chamber is a membrane type straight pipe water-cooled wall or a spiral coil pipe water-cooled wall; a water-cooled wall inlet header is arranged at the bottom of the gasification chamber; a water-cooled wall outlet header is arranged on the top of the gasification chamber; a chiller is arranged at the outlet of a downcomer; one end of the guide pipe is arranged below the chiller; the other end of the guide pipe is arranged below an overheater; and an evaporated and heated surface is arranged above the overheater. According to the utility model, the overhaul cost is saved; the longer effective operation time can be ensured; deposited dust at the guide pipe can be effectively avoided; protective gas between a pressure shell and the gasification chamber is capable of ensuring the pressure shell to work at lower temperature; heat of the waste heat boiler and high-temperature synthesis gas is exchanged to generate medium-pressure saturated or overheated steam; heat, the coal calorific value of which is 10-13%, can be recycled; and the thermal efficiency of a system is effectively increased.

Description

The coal water slurry water wall vapourizing furnace of pot destroying process
Technical field
The utility model relates to a kind of vapourizing furnace, is specifically related to a kind of coal water slurry water wall vapourizing furnace that can be used in coal chemical technology or the IGCC power generation system pot destroying process, belongs to the vapourizing furnace technical field.
Background technology
Vapourizing furnace mainly contains two kinds, and a kind of is powder coal gasification furnace, and another kind is coal slurry gasifier.But a kind of low pollution that coal water slurry is the additive by about 65% coal, 34% water and 1% to be obtained by Physical Processing, the oily coal based fluid fuel of generation of high-level efficiency pipe-line transportation; Change the traditional combustion mode of coal, demonstrated huge environmental protection and energy saving advantage.Especially in recent years, adopt the technological line of changing waste into resources after, the environmental protection coal water slurry of succeeding in developing has improved the environmental benefit of coal water slurry greatly, coal water slurry has also become one of basic, the most most economical clear energy sources that substitutes oil, gas equal energy source.
In addition, along with the raising day by day that energy-saving and emission-reduction and clean environment firendly are required, to Coal Chemical Industry with based on the Poly-generation of Coal Chemical Industry new requirement has been proposed: ICL for Indirect Coal Liquefaction comprehensive energy efficiency of conversion 〉=42%; Coal preparing natural gas comprehensive energy efficiency of conversion 〉=56%; Coal alkene comprehensive energy processed efficiency of conversion 〉=40%.Source as Coal Chemical Industry and Poly-generation, that Coal Gasification Technology requires to have is stable, cleaning, characteristics of high efficiency, coal adaptability is wide, production intensity is big, efficiency of carbon conversion is high, pollute advantages such as little and entrained flow bed gasification technology has, representing the developing direction of gasification modern technique, in industrial production, be used widely.
According to the form of raw material, entrained flow bed gasification technology can be divided into two kinds of dry coal powder gasification and coal water slurry gasifications.The dry coal powder gasification technology is representative with Shell, by nozzle coal dust and vaporized chemical is sprayed into the vaporizer that is wrapped up by water wall, and common reaction produces synthetic gas.Dry coal powder gasification has the effective pneumatolytic of synthetic gas and divides the advantage high, that cold gas efficiency is high, but coal dust presents certain rhythm in high pressure, close phase course of conveying, can cause combustion chamber furnace temperature fluctuation big, and then influences the life-span of water wall.The coal water slurry gasification technology is representative with Texaco and Yan Kuang-Hua Li four nozzle type of furnaces, these two kinds of gasification technologies have been avoided coal dust high pressure, the close problem of unstable of carrying mutually, but its vaporizer is made of lining of fire brick, wearing and tearing are very fast, need routine preventive maintenance to change, maintenance and running cost have been increased greatly, and refractory brick can't bear too high service temperature, the coal of high ash melting point is difficult to gasify, and lining of fire brick can not bear comparatively high temps, refractory brick needs routine preventive maintenance and replacing, influences production efficiency.
By Tsing-Hua University, Beijing Yingde Qingda Technology Co., Ltd., non-slag-slag two-part coal water slurry water wall the vapourizing furnace of the common exploitation of Shanxi Yang Meifeng happiness fertile industry (group) limited-liability company, its application number is 201120404345.5, Granted publication number is CN202246596U, name is called the Chinese utility model patent of " atomization type coal water slurry water wall vapourizing furnace ", raw material is coal water slurry, and adopt the vaporizer of water wall structure, its flow process is gasification-Quench, be after synthetic gas leaves vaporizer, the bottom adopt the mode of water Quench its temperature is reduced to 200 surplus degree centigrade, enter follow-up flow process from the vapourizing furnace outlet.This type of furnace has been taken into account coal water slurry and has been carried stable and the resistant to elevated temperatures advantage of water wall, the high-ash-fusion coal that the burning price is lower, but, vapourizing furnace bottom adopt the Quench mode synthetic gas degree centigrade is reduced to 200 surplus 1300 surplus degree centigrade, most of sensible heat is underused and is wasted.
In addition, application number is 201120377366.2, notification number is CN202284795U, name is called the Chinese utility model patent of " full pot destroying process airflow bed gasification furnace group ", it discloses a kind of vapourizing furnace group, comprise airflow bed gasification furnace, the useless pot of radiation, the useless pot of convection current and telescoping water-cooled pipe connecting, the useless pot of described radiation comprises the radiation drum body that gives up, the import of slag gas, dripping eaves, interior periosteum formula water wall, the outer tube membrane wall, the crude synthesis gas outlet, slag bathroom and slag-drip opening, and periosteum formula water wall is provided with radially membrane wall near a side of the useless pot of radiation central axis in described, the useless pot of described convection current comprises the convection current drum body that gives up, U-shaped tubulation membrane wall, crude synthesis gas import and syngas outlet, the slag gas outlet of airflow bed gasification furnace connects the slag gas import of the useless pot of radiation, and the useless pot of radiation is communicated with by the useless pot of telescoping water-cooled pipe connecting and convection current.Adopt vapourizing furnace group described in the utility model, its whole flow process is the useless pot of the useless pot-convection current of gasification-radiation; It can adopt Texaco, multi-nozzle or GSP vapourizing furnace, and the above two are the lining of fire brick vapourizing furnace, and existence can not be born high temperature, needs the deficiency of routine preventive maintenance and replacing; And interchanger is the film mode tube screen structure, and conduit is the water-cooling jacket structure, makes complicated; In addition, higher with the synthetic gas temperature of the useless pot of radiation heat exchange, lime-ash has bigger viscosity, causes the contamination of heating surface easily, thereby influences the normal operation of equipment, and the useless pot of radiation involves great expense.
Application number is 200620077714.3, notification number is CN2937134Y, name is called the Chinese utility model patent of " half waste boiler type airflow bed gasification furnace group ", it discloses a kind of half waste boiler type airflow bed gasification furnace group, it comprises airflow bed gasification furnace, the radiation waste-heat boiler of slag, gas and stream, end entrance on the airflow bed gasification furnace lower end outlet serial connection radiation waste-heat boiler, the gas of radiation waste-heat boiler, slag outlet are connected with gas, slag downstream unit respectively.Adopt vapourizing furnace group described in the utility model, its flow process is the useless pot-Quench of gasification-radiation, the synthetic gas that is the vaporizer outlet directly enters the useless pot of radiation in the time of 1300 ℃, reclaim its part sensible heat, the synthetic gas temperature is reduced to 600-800 ℃, directly enter the water-bath of Quench jar then, the synthetic gas temperature is reduced to follow-up flow process acceptable temperature; Expression can be adopted Texaco or multi-nozzle opposed type vapourizing furnace among the embodiment, and these two kinds of vapourizing furnaces are the lining of fire brick vapourizing furnace, exist refractory brick can not bear high temperature equally, need the deficiency of routine preventive maintenance and replacing, and working efficiency is not high; Identical with preamble, the useless pot of radiation involves great expense, and also breaks down easily and then influences the operation of entire equipment.
Though adopt the coal slurry gasifier of water wall lining at present, be that synthetic gas is after the outlet of vapourizing furnace epimere is flowed out from vaporizer, enter slag bath water-bath Quench, temperature is reduced to about 200 ℃ from about 1300 ℃, but it does not reclaim the sensible heat of synthetic gas, still has certain weak point in concrete production process; The coal slurry gasifier spininess of pot destroying process is to the lining of fire brick structure, and the useless pot of a radiation heating surface stains lime-ash easily, causes the equipment operation troubles.
The utility model content
The purpose of this utility model is: provide a kind of and be made up of vapourizing furnace and waste heat boiler two portions, the coal water slurry water wall vapourizing furnace that adopts conduit to connect, it is not high to have overcome existing coal slurry gasifier capacity usage ratio, and can not bear high temperature, need routine preventive maintenance and replacing, the shortcoming that working efficiency is not high.
The purpose of this utility model is to realize by following technical proposals: a kind of coal water slurry water wall vapourizing furnace of pot destroying process, comprise vapourizing furnace and waste heat boiler, vapourizing furnace comprises vaporizer, be located at the vapourizing furnace shell of vaporizer outside, be located at vaporizer top jet hole, with downtake, chiller and the slag bath of vaporizer bottom connection; Waste heat boiler comprises waste heat boiler shell, membrane wall, superheater, evaporating heating surface, be positioned at the syngas outlet on waste heat boiler top and be positioned at the ash bucket of bottom; Also comprise conduit, the lower end of vapourizing furnace and the lower end of waste heat boiler are concatenated into " U " shape by conduit; Described vaporizer is membrane type straight tube water wall or spiral pipe water wall, the bottom of vaporizer is provided with water wall entrance collection case, the top is provided with water wall outlet collection case, described chiller is located at the exit of downtake, one end of conduit is located at the below of chiller, the other end of conduit is located at the below of superheater, and described evaporating heating surface is located at the superheater top.
As a kind of optimal way, described conduit becomes 5-45 ° toward having a down dip with horizontal plane, and the conduit mouth that is arranged in vapourizing furnace is higher than the conduit mouth that is arranged in waste heat boiler.
As a kind of optimal way, described evaporating heating surface and superheater are membrane type spiral tube or serpentine tube structure.
As a kind of optimal way, be full of N between vapourizing furnace shell and the vaporizer, when having operation between waste heat boiler shell and the membrane wall 2Or CO 2The space for maintenance of shielding gas.
Further, the sectional dimension of space for maintenance is 400-700mm.
Further, described waste heat boiler also comprises sectionalized economizer, and sectionalized economizer is located at the top of evaporating heating surface.
As a kind of optimal way, superheater is made as the 1-3 level, and the spray desuperheating device of regulation and control working medium temperature is set between the superheaters at different levels.
As a kind of optimal way, chiller is the 2-8 group, every group 2-10, be located on the gasification stove internal wall, and the spout of chiller is corresponding with the outlet of downtake.
As a kind of optimal way, described ash bucket is located at the bottom of discarded boiler, and meets a lock hopper system for ash discharge.
The effect of the utility model middle part subcomponent is as follows:
Conduit: in order to be communicated with vapourizing furnace and waste heat boiler, the structure under conduit employing simultaneously is oblique can be avoided lime-ash accumulation herein, is convenient to conducting.
Vapourizing furnace: adopt the water wall lining; The water wall lining structure is compared with refractory brick, can bear higher temperature, can use the lower high-ash-fusion coal of price, more need not routine preventive maintenance and changes refractory brick with influence production; Be more suitable for being applicable to coal water slurry gasification.
Compared with prior art, the beneficial effects of the utility model: the utility model proposes a kind of coal water slurry water wall vapourizing furnace of pot destroying process, possess following advantage:
1. vaporizer adopts water wall structure, need not routine preventive maintenance or changes refractory brick, has saved the cost of overhaul, can guarantee long effective run time, and water wall structure has the characteristics of " with the anti-slag of slag ", can be high temperature resistant, can improve the gasification operation temperature, the lower high-ash-fusion coal of gasification price;
2. the conduit that connects vapourizing furnace and waste heat boiler adopts oblique structure down, can avoid the dust stratification at conduit place effectively;
3. between pressure shell and the vaporizer shielding gas is arranged, can protect pressure shell under lower temperature condition, to work;
4. the synthetic gas of vaporizer outlet has higher temperature, behind Quench curing lime-ash wherein, enter waste heat boiler, the heat of recyclable 10%-13% coal calorific value, the superheated vapour that produces can be used for that other flow processs make the integral energy utilising efficiency be improved in the chemical plant; If be used for the IGCC power generation system, can make generating efficiency improve 3%-5%;
5. adopt coal water slurry as raw material, the characteristics that have accurate measurement, are easy to transport.
Description of drawings
Fig. 1 is the structural representation of the coal water slurry water wall vapourizing furnace of the utility model pot destroying process.
Among the figure: 1-jet hole, 2-vapourizing furnace shell, 3-vaporizer, the 4-downtake, 5-chiller, 6-slag bath, 7-water wall entrance collection case, 8-water wall outlet collection case, 9-waste heat boiler shell, the 10-membrane wall, 11-syngas outlet, 12-superheater, the 13-evaporating heating surface, the 14-economizer, 15-conduit, 16-ash bucket.
Embodiment
Below in conjunction with specific embodiment the utility model is further described.
Disclosed all features in this specification sheets, or the step in disclosed all methods or the process, except the speciality and/or step of mutual repulsion, all can make up by any way, unless special narration all can be replaced by other equivalences or the alternative features with similar purpose, namely, unless special narration, an embodiment in a series of equivalences of each feature or the similar characteristics.
The coal water slurry water wall vapourizing furnace of the utility model pot destroying process adopts coal water slurry as raw material, the characteristics that have accurate measurement, are easy to transport; Can be used for coal chemical technology or IGCC power generation system.
As shown in Figure 1, Concrete structure of the present utility model is as follows:
The coal water slurry water wall vapourizing furnace of the utility model pot destroying process, it comprises vapourizing furnace, waste heat boiler and conduit 15, the lower end of vapourizing furnace and the lower end of waste heat boiler are concatenated into " U " shape by conduit 15, specifically, described conduit 15 becomes the α angle toward having a down dip with horizontal plane, and α value: 5-45 °, and the conduit mouth that is arranged in vapourizing furnace is higher than the conduit mouth that is arranged in waste heat boiler, in implementing operational process, can avoid the dust stratification at conduit place effectively.
Described vapourizing furnace comprises vaporizer 3, be located at the vapourizing furnace shell 2 of vaporizer outside, be located at vaporizer top jet hole 1, with downtake 4, chiller 5 and the slag bath 6 of vaporizer bottom connection, because jet hole is arranged at the top of vaporizer, therefore, this vapourizing furnace is top-jet-type.Described vaporizer 3 is membrane type straight tube water wall or spiral pipe water wall, the bottom of vaporizer 3 is provided with water wall entrance collection case 7, the top is provided with water wall outlet collection case 8, this vaporizer is applicable to coal water slurry gasification, adopt lining of fire brick different with the traditional coal-water-slurry gasification, this patent adopts the lining of water wall structure, need not routine preventive maintenance and changes refractory brick.Chiller 5 is the 2-8 group, every group 2-10, be located on the gasification stove internal wall, and the spout of chiller 5 is corresponding with the outlet of downtake 4.Described chiller 5 is located at the exit of downtake 4, and an end of conduit 15 is located at the below of chiller 5; Form the flow process of gasification back condensation earlier, treat to enter again in the useless pot of convection current after the condensation.
Waste heat boiler comprises waste heat boiler shell 9, membrane wall 10, superheater 12, evaporating heating surface 13, sectionalized economizer 14, be positioned at the syngas outlet 11 on waste heat boiler top and be positioned at the ash bucket 16 of bottom.Sectionalized economizer 14 is located at the top of evaporating heating surface 13, and evaporating heating surface 13 is located at superheater 12 tops, and the other end of conduit 15 is located at the below of superheater 12.According to the demand of water power, calorie distribution and steam parameter, superheater 12 is made as the 1-3 level, and the spray desuperheating device of regulation and control working medium temperature is set between the superheaters at different levels.Described evaporating heating surface 13 and superheater 12 are membrane type spiral tube or serpentine tube.Described ash bucket 16 is located at the bottom of waste heat boiler, and the lock hopper system that connects is used for ash discharge.
Between vapourizing furnace shell 2 and the vaporizer 3, have the N of being full of between waste heat boiler shell 9 and the membrane wall 10 2Or CO 2The space for maintenance of shielding gas; The sectional dimension of space for maintenance is 400-700mm.This space is filled with shielding gas N during operation 2Or CO 2, its pressure is slightly larger than the vaporizer working pressure, prevents that synthetic gas from leaking, but protecting sheathing is worked under lower temperature condition simultaneously.
Flow process of the present utility model is:The useless pot of gasification-Quench-convection current.
Compare with the Chinese utility model patent " atomization type coal water slurry water wall vapourizing furnace " that adopts gasification-chilling process, have pot destroying process, reclaimed most of sensible heat in the synthetic gas, the energy efficiency of equipment height.
Compare with the Chinese utility model patent that adopts the useless pot-convection current pot destroying process of gasification-radiation " full pot destroying process airflow bed gasification furnace group ", reduced the useless pot of the bigger radiation of easy slagging scorification and investment, the system that can guarantee moves long-term effectively.
Compare with the Chinese utility model patent " half waste boiler type airflow bed gasification furnace group " that adopts the useless pot-chilling process of gasification-radiation, adopt the useless pot of convection current to reclaim the sensible heat of synthetic gas convective heat exchange section, and reduced the useless pot of the bigger radiation of easy slagging scorification and investment, the system that can guarantee moves long-term effectively.Specifically, the synthetic gas of the chamber of autopneumatolysis in the future is by the water spray Quench, in the downtake exit its temperature is reduced to about about 900 ℃ from about 1300 ℃, the thin slag Quench that be mingled with in the crude synthesis gas this moment is solidified the back major part and is entered the bottom slag bath, synthetic gas then enters the useless pot of convection type to reclaim sensible heat behind conduit, and its temperature is reduced to the temperature of follow-up requirements of process, be reduced to 200-300 ℃ as the temperature of synthetic gas in the useless pot from 900 ℃.
During use,Coal water slurry and vaporized chemical spray in the vaporizer 3 by nozzle, vaporizer 3 is made of membrane type straight tube or spiral pipe water wall, the synthetic gas that gasification produces, downwards through downtake 4, in downtake 4 exits, chiller 5 is reduced to below 900 ℃ by spray chilled water or the Quench synthetic gas temperature with synthetic gas; At this moment, most slag enters the slag bath 6 of vapourizing furnace bottom after Quench is solidified, and a spot of thin slag and flying dust enter waste heat boiler with synthetic gas through conduit 15; Synthetic gas enters waste heat boiler, successively through going out syngas outlet 11 behind superheater 12, evaporating heating surface 13, the economizer 14; Dust stratification on the heating surface accumulates in ash bucket 16 places after blowing ash, knocking rapping, system regularly discharges by lock hopper.
Application Example:
With the 1000t/d coal feeding amount, operational condition 4MPa, 1350 ℃, coal water slurry is formulated as example by certain bituminous coal, can reach following effect:
Effective pneumatolytic branch (dried raw gas) 〉=81.5%;
Cold gas efficiency 〉=73%;
Than oxygen consumption≤382kg/1000Nm 3Synthetic gas;
Than coal consumption≤548kg/1000Nm 3Synthetic gas;
Produce superheated vapour (4.5MPa, 450 ℃) 〉=45t/h.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims (9)

1. the coal water slurry water wall vapourizing furnace of a pot destroying process, comprise vapourizing furnace and waste heat boiler, vapourizing furnace comprises vaporizer (3), be located at the vapourizing furnace shell (2) of vaporizer outside, be located at vaporizer top jet hole (1), with downtake (4), chiller (5) and the slag bath (6) of vaporizer bottom connection, waste heat boiler comprises waste heat boiler shell (9), membrane wall (10), superheater (12), evaporating heating surface (13), be positioned at the syngas outlet (11) on waste heat boiler top and be positioned at bottom ash bucket (16); It is characterized in that: also comprise conduit (15), the lower end of vapourizing furnace and the lower end of waste heat boiler are concatenated into " U " shape by conduit (15); Described vaporizer (3) is membrane type straight tube water wall or spiral pipe water wall, the bottom of vaporizer (3) is provided with water wall entrance collection case (7), the top is provided with water wall outlet collection case (8), described chiller (5) is located at the exit of downtake (4), one end of conduit (15) is located at the below of chiller (5), the other end of conduit (15) is located at the below of superheater (12), and described evaporating heating surface (13) is located at superheater (12) top.
2. the coal water slurry water wall vapourizing furnace of pot destroying process as claimed in claim 1 is characterized in that: described conduit (15) becomes 5-45 ° toward having a down dip with horizontal plane, and the conduit mouth that is arranged in vapourizing furnace is higher than the conduit mouth that is arranged in waste heat boiler.
3. the coal water slurry water wall vapourizing furnace of pot destroying process as claimed in claim 1 is characterized in that: described evaporating heating surface (13) and superheater (12) are membrane type spiral tube or serpentine tube structure.
4. the coal water slurry water wall vapourizing furnace of pot destroying process as claimed in claim 1 is characterized in that: be full of N between vapourizing furnace shell (2) and the vaporizer (3), when having operation between waste heat boiler shell (9) and the membrane wall (10) 2Or CO 2The space for maintenance of shielding gas.
5. the coal water slurry water wall vapourizing furnace of pot destroying process as claimed in claim 4, it is characterized in that: the sectional dimension of space for maintenance is 400-700mm.
6. as the coal water slurry water wall vapourizing furnace of the described pot destroying process of arbitrary claim among the claim 1-5, it is characterized in that: described waste heat boiler also comprises sectionalized economizer (14), and sectionalized economizer (14) is located at the top of evaporating heating surface (13).
7. the coal water slurry water wall vapourizing furnace of pot destroying process as claimed in claim 1, it is characterized in that: superheater (12) is made as the 1-3 level, and the spray desuperheating device of regulation and control working medium temperature is set between the superheaters at different levels.
8. the coal water slurry water wall vapourizing furnace of pot destroying process as claimed in claim 1 is characterized in that: chiller (5) is the 2-8 group, every group 2-10, be located on the gasification stove internal wall, and the spout of chiller (5) is corresponding with the outlet of downtake (4).
9. the coal water slurry water wall vapourizing furnace of pot destroying process as claimed in claim 1 is characterized in that: described ash bucket (16) is located at the bottom of discarded boiler, and meets a lock hopper system that is used for ash discharge.
CN2013201319496U 2013-03-22 2013-03-22 Coal water slurry water-cooled wall gasification furnace in waste boiler process Withdrawn - After Issue CN203174051U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103160329A (en) * 2013-03-22 2013-06-19 东方电气集团东方锅炉股份有限公司 Coal water slurry water wall gasification furnace of waste heat boiler process
CN103666583A (en) * 2013-11-11 2014-03-26 煤炭科学研究总院 Waste heat boiler device of entrained bed gasifier
CN103820169A (en) * 2014-03-11 2014-05-28 上海锅炉厂有限公司 Combined cooling and purifying device and method for high-temperature raw gas
CN104947087A (en) * 2014-03-31 2015-09-30 甘志银 Over-atmospheric-pressure chemical vapor deposition device
CN112029545A (en) * 2020-09-18 2020-12-04 东华工程科技股份有限公司 Elastic support load control device and control method for water-gas separator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103160329A (en) * 2013-03-22 2013-06-19 东方电气集团东方锅炉股份有限公司 Coal water slurry water wall gasification furnace of waste heat boiler process
CN103160329B (en) * 2013-03-22 2014-10-22 东方电气集团东方锅炉股份有限公司 Coal water slurry water wall gasification furnace of waste heat boiler process
CN103666583A (en) * 2013-11-11 2014-03-26 煤炭科学研究总院 Waste heat boiler device of entrained bed gasifier
CN103820169A (en) * 2014-03-11 2014-05-28 上海锅炉厂有限公司 Combined cooling and purifying device and method for high-temperature raw gas
CN103820169B (en) * 2014-03-11 2015-08-19 上海锅炉厂有限公司 A kind of combined type height temperature rough gas cooling purifying device and method
CN104947087A (en) * 2014-03-31 2015-09-30 甘志银 Over-atmospheric-pressure chemical vapor deposition device
CN104947087B (en) * 2014-03-31 2018-03-06 甘志银 Extraordinary pressure chemical vapor deposition device
CN112029545A (en) * 2020-09-18 2020-12-04 东华工程科技股份有限公司 Elastic support load control device and control method for water-gas separator

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