CN104263410A - Coal gasification waste heat recovery system - Google Patents
Coal gasification waste heat recovery system Download PDFInfo
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- CN104263410A CN104263410A CN201410506577.XA CN201410506577A CN104263410A CN 104263410 A CN104263410 A CN 104263410A CN 201410506577 A CN201410506577 A CN 201410506577A CN 104263410 A CN104263410 A CN 104263410A
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- shock chamber
- quench
- waste heat
- shower nozzle
- heat boiler
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/86—Other features combined with waste-heat boilers
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/09—Mechanical details of gasifiers not otherwise provided for, e.g. sealing means
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
- C10J2300/1643—Conversion of synthesis gas to energy
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
Abstract
The invention relates to a coal gasification waste heat recovery system which comprises a gasifier, a cyclone separator and a waste heat boiler, wherein the gasifier comprises a gas inlet chamber and a chilling chamber; the gas inlet chamber is positioned above the chilling chamber; the cyclone separator comprises a gas inlet, a gas outlet and an ash outlet; the gas inlet is connected to the upper side of a chilling agent liquid level in the chilling chamber through a synthesis gas guide tube; the gas outlet is connected to the waste heat boiler through a pipeline; the ash outlet is connected to the lower side of the chilling agent liquid level in the chilling chamber through an ash collection guide tube; and the temperature of the chilled gas is controlled to be 400-900 DEG C. The waste heat recovery system overcomes the defects that the wet-process purified energy utilization efficiency is low and the dry-process purification equipment is complex to operate, the energy utilization efficiency is high, and the operation is simple and reliable.
Description
Technical field
The present invention relates to a kind of coal gasification apparatus, particularly relate to a kind of system of gas recovery waste heat.
Background technology
Along with national energy regulation is more and more stricter, improving efficiency of energy utilization will be a great problem that faces of Coal Chemical Engineering Project from now on, in " 12 " period, newly-started coal preparing natural gas, indirect coal liquefaction, olefin hydrocarbon making by coal project efficient energy conversion reach 56%, 42%, more than 40% respectively." planning of coal deep processing pilot project " worked out by National Development and Reform Committee, National Energy Board is also pointed out simultaneously, can the pilot project of coal deep processing from now on obtain one of 3 rigid indexs checked and approved is exactly efficiency of energy utilization, Some exemplary project then will meet or exceed " advanced value ", equals 56% as the basic demand of coal preparing natural gas project efficiency is greater than.Therefore the efficiency of energy utilization how improving coal gasification course is extremely urgent.
Coal and vaporized chemical react the crude synthesis gas of generation under high-temperature and high-pressure conditions, and need lime-ash to be separated further with crude synthesis gas before entering downstream process, treatment scheme main at present has wet purification and dry cleaning.In wet purification, a large amount of sensible heat medium that is cooled is taken away and is difficult to regain, and power loss is comparatively large, and efficiency of energy utilization is not high; Although dry purifying system can at utmost gas recovery waste heat in the market, improve efficiency of energy utilization, system device is huge, and especially dust removing system smooth running difficulty is high, and whole complicated operation can not meet existing market demand.
Summary of the invention
In order to overcome the defect that above-mentioned prior art exists, the invention provides and provide a kind of gasification residual neat recovering system, it is low that this residual neat recovering system overcomes wet purification efficiency of energy utilization, the defect of dry scrubbing plant complicated operation, and efficiency of energy utilization is high, operation is simple and reliable.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of gasification residual neat recovering system, it is characterized in that: comprise vapourizing furnace, cyclonic separator and waste heat boiler, described vapourizing furnace comprises inlet plenum and shock chamber, inlet plenum is positioned at above shock chamber, described cyclonic separator comprises inlet mouth, air outlet and ash output hole, inlet mouth is by above the Quench agent liquid level of synthetic gas tubes connection in shock chamber, air outlet is connected on waste heat boiler by pipeline, ash output hole is by collecting below the Quench agent liquid level of grey tubes connection in shock chamber, and after Quench, the temperature of coal gas controls at 400 ~ 900 DEG C.
The coupling end of the grey conduit of described collection and ash output hole is provided with " U " shape dipleg, " U " shape dipleg has three opennings, and an openning is connected with the grey conduit of collection, and an openning is connected with ash output hole, an openning passes into air-flow, and air-flow is the air-flow that rare gas element or high-temperature water vapor are formed.
Downtake is provided with between described inlet plenum and shock chamber, inlet plenum is communicated with shock chamber by downtake, multiple Quench shower nozzle is installed in described shock chamber, described synthetic gas tubes connection is positioned at above Quench shower nozzle in one end of shock chamber, and be inclined and mounted in shock chamber, be 10 ~ 40 ° with the angle of horizontal plane.
Described Quench shower nozzle is arranged round shock chamber's circumference, and Quench shower nozzle can be disposed on the same plane, and also can stragglyly arrange.
Pass into Quench agent in described Quench shower nozzle, Quench agent is low temperature synthetic gas, rare gas element, water at low temperature steam or buck clear liquid.
The air outlet of described cyclonic separator is connected to the top of waste heat boiler by pipeline.
The air outlet of described cyclonic separator is connected to the bottom of waste heat boiler by pipeline.
The present invention, relative to prior art, has the following advantages:
1, Novel cyclone separating device is set between vapourizing furnace and waste heat boiler, not only guarantee that the crude synthesis gas ash content entering waste heat boiler is lower, ensure that useless pot long-term stability is run, and effectively can reduce the load of synthetic gas treatment and purification unit in follow-up workshop section, while save energy, reduce device operation easier, improve system reliability;
2, under the U-shaped dipleg be arranged between Novel cyclone separating device and vapourizing furnace shock chamber can guarantee that crude synthesis gas lime-ash enters vapourizing furnace shock chamber liquid level smoothly, complicated dry ash collection device do not established by waste heat boiler, reduces facility investment; Meanwhile, the ash discharge slag collection system simple and feasible of whole system, easy to operate.
3, gasification chamber outlet synthetic gas temperature is high, through cyclonic separator remove further tiny lime-ash laggard enter waste heat boiler, can efficient recovery coal calorific value 10% ~ 13%, produce superheated vapour and can be used for other flow processs in chemical plant, Shi Quan factory efficiency of energy utilization is improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2.
1-vapourizing furnace is marked, 10-inlet plenum, 11-shock chamber, 12-Quench agent liquid level, 2-cyclonic separator, 20-inlet mouth, 21-air outlet, 22, ash output hole, 3-waste heat boiler, 4-downtake in figure; 5-synthetic gas conduit, 6-Quench shower nozzle, 7-collection ash conduit, 8-U moulding mixture leg.
Embodiment
The object of the invention is to: a kind of residual neat recovering system combined with waste heat boiler 3 by vapourizing furnace 1, cyclonic separator 2 is provided, overcome wet purification efficiency of energy utilization low, the feature of dry scrubbing plant complicated operation, there is provided a kind of efficiency of energy utilization high, the gasification system that operation is simple and reliable.
The object of the present invention is achieved like this: the present invention includes vapourizing furnace 1, Novel cyclone separating device 2 and waste heat boiler 3, vapourizing furnace raw gas outlet (by synthesis airway 5) is connected with cyclonic separator 2 inlet mouth, under the Quench agent liquid level of cyclonic separator 2 ash output hole through collecting grey conduit 7 and going deep in vapourizing furnace 1 shock chamber, air outlet is connected with waste heat boiler 3.Vapourizing furnace 1 can be hot wall stove or cold hearth, and the shock chamber of this vapourizing furnace is provided with downtake 4, Quench shower nozzle 6, synthetic gas conduit 5, collects the key parts such as grey conduit 7.Downtake 4 is water-cooled coil pipe, synthetic gas conduit 5 is arranged on more than downtake 4 lower end, and synthetic gas conduit 5, horizontal by certain angle, preferably becomes 10 ~ 40 ° with horizontal plane obliquely, synthetic gas conduit 5 length and size are determined by cyclonic separator 2 treatment capacity, are advisable with continuous and stable charging.Quench shower nozzle has multiple, is successively set on downtake 4 lower end nearby, and Quench shower nozzle circumference is arranged in shock chamber, can be arranged on same plane, also can stragglyly arrange, and is advisable can fully contact cooling.The Quench agent of spraying in Quench shower nozzle 6 can be low temperature synthetic gas, rare gas element, water at low temperature steam, buck clear liquid etc., preferred water at low temperature steam, buck, through Quench agent spray, the crude synthesis gas temperature out temperature of coal gas (after the Quench) controls at 400 ~ 900 DEG C, preferably 600 ~ 850 DEG C.Cyclonic separator 2 inlet mouth and synthetic gas tubes connection, flying dust in synthetic gas falls into after the grey conduit 7 of collection through cyclonic separation, under the effect of dynamical elevation, be blown in vapourizing furnace 1 shock chamber below Quench agent liquid level by bottom airflow, the synthetic gas after purification to be connected with waste heat boiler by conduit and to collect heat.The synthetic gas of discharging can enter bottom waste heat boiler or top, preferably enters waste heat boiler top.Cyclonic separator shell is in not artesian condition when cooling and design of keep hydraulic system press normally work, split is adopted to design convenient maintenance with vapourizing furnace and waste heat boiler, the collection ash conduit of its underpart is provided with U-shaped dipleg 8, one air-flow is blown into bottom dipleg, air-flow can be rare gas element such as carbonic acid gas also can be high-temperature water vapor, and inlet air temperature is identical with the grey temperature of collection.Form material envelope when U-shaped dipleg normally works, be connected hold flying dust material level higher than another end with cyclonic separator, bottom airflow is blown into and ensures that ash discharge is normal.
The present invention arranges Novel cyclone separating device between vapourizing furnace and waste heat boiler, not only guarantee that the crude synthesis gas ash content entering waste heat boiler is lower, ensure that useless pot long-term stability is run, and effectively can reduce the load of synthetic gas treatment and purification unit in follow-up workshop section, while save energy, reduce device operation easier, improve system reliability;
Under the present invention's U-shaped dipleg be arranged between Novel cyclone separating device and vapourizing furnace shock chamber can guarantee that crude synthesis gas lime-ash enters vapourizing furnace shock chamber liquid level smoothly, complicated dry ash collection device do not established by waste heat boiler, reduces facility investment; Meanwhile, the ash discharge slag collection system simple and feasible of whole system, easy to operate.
Gasification chamber outlet synthetic gas temperature of the present invention is high, through cyclonic separator remove further tiny lime-ash laggard enter waste heat boiler, can efficient recovery coal calorific value 10% ~ 13%, produce superheated vapour and can be used for other flow processs in chemical plant, Shi Quan factory efficiency of energy utilization is improved.
Below in conjunction with specific embodiment the present invention be explained in detail and illustrate.
Embodiment 1
A kind of gasification residual neat recovering system, comprise vapourizing furnace 1, cyclonic separator 2 and waste heat boiler 3, described vapourizing furnace 1 comprises inlet plenum 10 and shock chamber 11, inlet plenum 10 is positioned at above shock chamber 11, described cyclonic separator 2 comprises inlet mouth 20, air outlet 21 and ash output hole 22, inlet mouth 20 is connected to above the Quench agent liquid level 12 in shock chamber 11 by synthetic gas conduit 5, air outlet 21 is connected on waste heat boiler 3 by pipeline, ash output hole 22 is connected to below Quench agent 12 liquid level in shock chamber 11 by the grey conduit 7 of collection, after Quench, the temperature of coal gas controls at 400 DEG C.
The grey conduit 7 of described collection is provided with " U " shape dipleg 8 with the coupling end of ash output hole 22, and " U " shape dipleg 8 has three opennings, and an openning is connected with the grey conduit of collection, and an openning is connected with ash output hole, and an openning passes into air-flow, and air-flow is rare gas element.
Downtake 4 is provided with between described inlet plenum 10 and shock chamber 11, inlet plenum 10 is communicated with shock chamber 11 by downtake 4, in described shock chamber 11, multiple Quench shower nozzle 6 is installed, one end that described synthetic gas conduit 5 is connected to shock chamber 11 is positioned at above Quench shower nozzle 6, and be inclined and mounted in shock chamber 11, be 10 ° with the angle of horizontal plane.
Described Quench shower nozzle 6 is arranged round shock chamber 11 circumference, Quench shower nozzle 6 setting straggly.
Pass into Quench agent in described Quench shower nozzle 6, Quench agent is low temperature synthetic gas.
The air outlet of described cyclonic separator 2 is connected to the top of waste heat boiler 3 by pipeline.
Embodiment 2
A kind of gasification residual neat recovering system, comprise vapourizing furnace 1, cyclonic separator 2 and waste heat boiler 3, described vapourizing furnace 1 comprises inlet plenum 10 and shock chamber 11, inlet plenum 10 is positioned at above shock chamber 11, described cyclonic separator 2 comprises inlet mouth 20, air outlet 21 and ash output hole 22, inlet mouth 20 is connected to above the Quench agent liquid level 12 in shock chamber 11 by synthetic gas conduit 5, air outlet 21 is connected on waste heat boiler 3 by pipeline, ash output hole 22 is connected to below Quench agent 12 liquid level in shock chamber 11 by the grey conduit 7 of collection, after Quench, the temperature of coal gas controls at 500 DEG C.
The grey conduit 7 of described collection is provided with " U " shape dipleg 8 with the coupling end of ash output hole 22, " U " shape dipleg 8 has three opennings, and an openning is connected with the grey conduit of collection, and an openning is connected with ash output hole, an openning passes into air-flow, and air-flow is the air-flow that high-temperature water vapor is formed.
Downtake 4 is provided with between described inlet plenum 10 and shock chamber 11, inlet plenum 10 is communicated with shock chamber 11 by downtake 4, in described shock chamber 11, multiple Quench shower nozzle 6 is installed, one end that described synthetic gas conduit 5 is connected to shock chamber 11 is positioned at above Quench shower nozzle 6, and be inclined and mounted in shock chamber 11, be 20 ° with the angle of horizontal plane.
Described Quench shower nozzle 6 is arranged round shock chamber 11 circumference, and Quench shower nozzle 6 is disposed on the same plane.
Pass into Quench agent in described Quench shower nozzle 6, Quench agent is low temperature synthetic gas.
The air outlet of described cyclonic separator 2 is connected to the bottom of waste heat boiler 3 by pipeline.
Embodiment 3
A kind of gasification residual neat recovering system, comprise vapourizing furnace 1, cyclonic separator 2 and waste heat boiler 3, described vapourizing furnace 1 comprises inlet plenum 10 and shock chamber 11, inlet plenum 10 is positioned at above shock chamber 11, described cyclonic separator 2 comprises inlet mouth 20, air outlet 21 and ash output hole 22, inlet mouth 20 is connected to above the Quench agent liquid level 12 in shock chamber 11 by synthetic gas conduit 5, air outlet 21 is connected on waste heat boiler 3 by pipeline, ash output hole 22 is connected to below Quench agent 12 liquid level in shock chamber 11 by the grey conduit 7 of collection, after Quench, the temperature of coal gas controls at 600 DEG C.
The grey conduit 7 of described collection is provided with " U " shape dipleg 8 with the coupling end of ash output hole 22, " U " shape dipleg 8 has three opennings, and an openning is connected with the grey conduit of collection, and an openning is connected with ash output hole, an openning passes into air-flow, and air-flow is the air-flow that rare gas element is formed.
Downtake 4 is provided with between described inlet plenum 10 and shock chamber 11, inlet plenum 10 is communicated with shock chamber 11 by downtake 4, in described shock chamber 11, multiple Quench shower nozzle 6 is installed, one end that described synthetic gas conduit 5 is connected to shock chamber 11 is positioned at above Quench shower nozzle 6, and be inclined and mounted in shock chamber 11, be 30 ° with the angle of horizontal plane.
Described Quench shower nozzle 6 is arranged round shock chamber 11 circumference, and Quench shower nozzle 6 is disposed on the same plane.
Pass into Quench agent in described Quench shower nozzle 6, Quench agent is water at low temperature steam.
The air outlet of described cyclonic separator 2 is connected to the top of waste heat boiler 3 by pipeline.
Embodiment 4
A kind of gasification residual neat recovering system, comprise vapourizing furnace 1, cyclonic separator 2 and waste heat boiler 3, described vapourizing furnace 1 comprises inlet plenum 10 and shock chamber 11, inlet plenum 10 is positioned at above shock chamber 11, described cyclonic separator 2 comprises inlet mouth 20, air outlet 21 and ash output hole 22, inlet mouth 20 is connected to above the Quench agent liquid level 12 in shock chamber 11 by synthetic gas conduit 5, air outlet 21 is connected on waste heat boiler 3 by pipeline, ash output hole 22 is connected to below Quench agent 12 liquid level in shock chamber 11 by the grey conduit 7 of collection, after Quench, the temperature of coal gas controls at 700 DEG C.
The grey conduit 7 of described collection is provided with " U " shape dipleg 8 with the coupling end of ash output hole 22, " U " shape dipleg 8 has three opennings, and an openning is connected with the grey conduit of collection, and an openning is connected with ash output hole, an openning passes into air-flow, and air-flow is the air-flow that high-temperature water vapor is formed.
Downtake 4 is provided with between described inlet plenum 10 and shock chamber 11, inlet plenum 10 is communicated with shock chamber 11 by downtake 4, in described shock chamber 11, multiple Quench shower nozzle 6 is installed, one end that described synthetic gas conduit 5 is connected to shock chamber 11 is positioned at above Quench shower nozzle 6, and be inclined and mounted in shock chamber 11, be 40 ° with the angle of horizontal plane.
Described Quench shower nozzle 6 is arranged round shock chamber 11 circumference, Quench shower nozzle 6 setting straggly.
Pass into Quench agent in described Quench shower nozzle 6, Quench agent is buck clear liquid.
The air outlet of described cyclonic separator 2 is connected to the bottom of waste heat boiler 3 by pipeline.
Embodiment 5
A kind of gasification residual neat recovering system, comprise vapourizing furnace 1, cyclonic separator 2 and waste heat boiler 3, described vapourizing furnace 1 comprises inlet plenum 10 and shock chamber 11, inlet plenum 10 is positioned at above shock chamber 11, described cyclonic separator 2 comprises inlet mouth 20, air outlet 21 and ash output hole 22, inlet mouth 20 is connected to above the Quench agent liquid level 12 in shock chamber 11 by synthetic gas conduit 5, air outlet 21 is connected on waste heat boiler 3 by pipeline, ash output hole 22 is connected to below Quench agent 12 liquid level in shock chamber 11 by the grey conduit 7 of collection, after Quench, the temperature of coal gas controls at 800 DEG C.
The grey conduit 7 of described collection is provided with " U " shape dipleg 8 with the coupling end of ash output hole 22, " U " shape dipleg 8 has three opennings, and an openning is connected with the grey conduit of collection, and an openning is connected with ash output hole, an openning passes into air-flow, and air-flow is the air-flow that rare gas element is formed.
Downtake 4 is provided with between described inlet plenum 10 and shock chamber 11, inlet plenum 10 is communicated with shock chamber 11 by downtake 4, in described shock chamber 11, multiple Quench shower nozzle 6 is installed, one end that described synthetic gas conduit 5 is connected to shock chamber 11 is positioned at above Quench shower nozzle 6, and be inclined and mounted in shock chamber 11, be 25 ° with the angle of horizontal plane.
Described Quench shower nozzle 6 is arranged round shock chamber 11 circumference, and Quench shower nozzle 6 is disposed on the same plane.
Pass into Quench agent in described Quench shower nozzle 6, Quench agent is rare gas element.
The air outlet of described cyclonic separator 2 is connected to the bottom of waste heat boiler 3 by pipeline.
Embodiment 6
A kind of gasification residual neat recovering system, comprise vapourizing furnace 1, cyclonic separator 2 and waste heat boiler 3, described vapourizing furnace 1 comprises inlet plenum 10 and shock chamber 11, inlet plenum 10 is positioned at above shock chamber 11, described cyclonic separator 2 comprises inlet mouth 20, air outlet 21 and ash output hole 22, inlet mouth 20 is connected to above the Quench agent liquid level 12 in shock chamber 11 by synthetic gas conduit 5, air outlet 21 is connected on waste heat boiler 3 by pipeline, ash output hole 22 is connected to below Quench agent 12 liquid level in shock chamber 11 by the grey conduit 7 of collection, after Quench, the temperature of coal gas controls at 900 DEG C.
The grey conduit 7 of described collection is provided with " U " shape dipleg 8 with the coupling end of ash output hole 22, " U " shape dipleg 8 has three opennings, and an openning is connected with the grey conduit of collection, and an openning is connected with ash output hole, an openning passes into air-flow, and air-flow is the air-flow that indifferent gas is formed.
Downtake 4 is provided with between described inlet plenum 10 and shock chamber 11, inlet plenum 10 is communicated with shock chamber 11 by downtake 4, in described shock chamber 11, multiple Quench shower nozzle 6 is installed, one end that described synthetic gas conduit 5 is connected to shock chamber 11 is positioned at above Quench shower nozzle 6, and be inclined and mounted in shock chamber 11, be 35 ° with the angle of horizontal plane.
Described Quench shower nozzle 6 is arranged round shock chamber 11 circumference, and Quench shower nozzle 6 is disposed on the same plane.
Pass into Quench agent in described Quench shower nozzle 6, Quench agent is water at low temperature steam.
The air outlet of described cyclonic separator 2 is connected to the top of waste heat boiler 3 by pipeline.
Claims (7)
1. a gasification residual neat recovering system, it is characterized in that: comprise vapourizing furnace, cyclonic separator and waste heat boiler, described vapourizing furnace comprises inlet plenum and shock chamber, inlet plenum is positioned at above shock chamber, described cyclonic separator comprises inlet mouth, air outlet and ash output hole, inlet mouth is by above the Quench agent liquid level of synthetic gas tubes connection in shock chamber, air outlet is connected on waste heat boiler by pipeline, ash output hole is by collecting below the Quench agent liquid level of grey tubes connection in shock chamber, and after Quench, the temperature of coal gas controls at 400 ~ 900 DEG C.
2. a kind of gasification residual neat recovering system according to claim 1, it is characterized in that: the coupling end of the grey conduit of described collection and ash output hole is provided with " U " shape dipleg, " U " shape dipleg has three opennings, an openning is connected with the grey conduit of collection, an openning is connected with ash output hole, an openning passes into air-flow, and air-flow is the air-flow that rare gas element or high-temperature water vapor are formed.
3. a kind of gasification residual neat recovering system according to claim 1 and 2, it is characterized in that: between described inlet plenum and shock chamber, be provided with downtake, inlet plenum is communicated with shock chamber by downtake, multiple Quench shower nozzle is installed in described shock chamber, described synthetic gas tubes connection is positioned at above Quench shower nozzle in one end of shock chamber, and be inclined and mounted in shock chamber, be 10 ~ 40 ° with the angle of horizontal plane.
4. a kind of gasification residual neat recovering system according to claim 3, is characterized in that: described Quench shower nozzle is arranged round shock chamber's circumference, and Quench shower nozzle can be disposed on the same plane, and also can stragglyly arrange.
5. a kind of gasification residual neat recovering system according to claim 3, is characterized in that: pass into Quench agent in described Quench shower nozzle, Quench agent is low temperature synthetic gas, rare gas element, water at low temperature steam or buck clear liquid.
6. a kind of gasification residual neat recovering system according to claim 1, is characterized in that: the air outlet of described cyclonic separator is connected to the top of waste heat boiler by pipeline.
7. a kind of gasification residual neat recovering system according to claim 1, is characterized in that: the air outlet of described cyclonic separator is connected to the bottom of waste heat boiler by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410506577.XA CN104263410A (en) | 2014-09-28 | 2014-09-28 | Coal gasification waste heat recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410506577.XA CN104263410A (en) | 2014-09-28 | 2014-09-28 | Coal gasification waste heat recovery system |
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| CN104263410A true CN104263410A (en) | 2015-01-07 |
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| CN201410506577.XA Pending CN104263410A (en) | 2014-09-28 | 2014-09-28 | Coal gasification waste heat recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696928A (en) * | 2018-12-24 | 2019-04-30 | 西北化工研究院有限公司 | A kind of reacting furnace heat recovery chamber tank level control system and method |
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