CN107033967A - Coal gasification apparatus with heat recovery function - Google Patents
Coal gasification apparatus with heat recovery function Download PDFInfo
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- CN107033967A CN107033967A CN201610080661.9A CN201610080661A CN107033967A CN 107033967 A CN107033967 A CN 107033967A CN 201610080661 A CN201610080661 A CN 201610080661A CN 107033967 A CN107033967 A CN 107033967A
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- heat recovery
- water
- recovery room
- heat
- gasification furnace
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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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5209—Regulation methods for flocculation or precipitation
-
- 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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Industrial Gases (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of coal gasification apparatus with heat recovery function, the coal gasification apparatus with heat recovery function include：Gasification furnace, the combustion gasification for carbonaceous material；Heat reclaim unit, the heat reclaim unit is connected with the gasification furnace, for reclaiming the heat that gained high temperature and high pressure gas are included after gasification furnace burning；Aeration tower, the aeration tower is connected with the gasification furnace for carrying out cleaning dust to raw gas；Pulp water processing unit, the pulp water processing unit is connected with the aeration tower is recycled buck for carrying out concentration to fine slag.The comprehensive utilization ratio of coal can be improved according to the coal gasification apparatus with heat recovery function of the present invention, the energy is saved.
Description
Technical field
The present invention relates to Coal Gasification Technology field, more particularly to a kind of coal gasification apparatus with heat recovery function.
Background technology
In correlation technique, gasification furnace is run at high temperature under high pressure, and the gasification product after carbonaceous material burning has higher
Temperature and pressure.The technique of chilling process and operate relatively easy, be mainly used in Coal Chemical Engineering Project, reached its maturity and
It is perfect.However, from energy utilization angle, chilling process gasification furnace is primarily present that the thermal efficiency is low, and the wasting of resources is big, energy
The problems such as source utilizes unreasonable.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the invention reside in carry
Go out a kind of coal gasification apparatus with heat recovery function, the coal gasification apparatus with heat recovery function can realize energy
Recycle, improve capacity usage ratio.
Coal gasification apparatus with heat recovery function according to embodiments of the present invention, including：Gasification furnace, for carbonaceous material
Combustion gasification；Heat reclaim unit, the heat reclaim unit is connected with the gasification furnace, for reclaiming after gasification furnace burning
The heat that gained high temperature and high pressure gas are included；Aeration tower, the aeration tower is connected with the gasification furnace for raw gas
Carry out cleaning dust；Pulp water processing unit, the pulp water processing unit is connected dense for being carried out to fine slag with the aeration tower
Contracting is recycled buck.
Coal gasification apparatus with heat recovery function according to embodiments of the present invention, it is possible to achieve the recycling of energy, moreover it is possible to
It is effective to improve heating gas efficiency, capacity usage ratio is improved, the energy is saved.
In addition, the coal gasification apparatus according to the above embodiment of the present invention with heat recovery function can also have what is added as follows
Technical characteristic：
According to one embodiment of present invention, the gasification furnace uses wet feeding or dry feed.
According to one embodiment of present invention, the gasification furnace includes combustion chamber and is located at the shock chamber in the combustion chamber downstream,
The combustion chamber has the burner for being used for that carbonaceous material and oxygen to be passed through into combustion chamber.
Further, the heat reclaim unit includes the first heat recovery room and drum, and the first heat recovery room enters
Mouth is connected with the outlet of the combustion chamber, and the outlet of the first heat recovery room is connected with the shock chamber, and the drum
It is connected with the first heat recovery room.
Further, the heat reclaim unit also includes the second heat recovery room, the second heat recovery room and the drum
It is connected, the second heat recovery room is serially connected between the shock chamber and the aeration tower, and the second heat recovery room
Including one or more.
Further, the first heat recovery room and the second heat recovery room are direct-connected by pipeline, and second heat
Recovery room is multiple including what is be serially connected.
Alternatively, the first heat recovery room is placed in the gasification furnace, and the second heat recovery room is placed in the gas
Change outside stove.
Alternatively, the downstream connection of the shock chamber has thick slag disposal system, and the bottom of the first heat recovery room is provided with
Water-bath component, lime-ash is deposited and collects by thick slag disposal system after spray cooling for raw gas, the water-bath component with
The pulp water processing unit is connected and the pulp water processing unit supplies water to the water-bath component.
According to one embodiment of present invention, the pulp water processing unit includes：Flash distillation process system, subsider, ash water tank,
Saturated hot-water tower and the grey water pump of high pressure, the flash distillation process system, the subsider, the ash water tank, the saturated hot-water
The grey water pump of tower, the high pressure is sequentially connected along water (flow) direction, the grey water pump of the flash distillation process system and the high pressure with it is described
Aeration tower is connected.
Further, the downstream connection of the subsider has fine slag processing system, flash distillation process system and the saturation heat
Water tower is connected for steam to be delivered into the saturated hot-water tower.
Brief description of the drawings
Fig. 1 is the schematic diagram of coal gasification apparatus one embodiment with heat recovery function of the embodiment of the present invention.
Fig. 2 is the schematic diagram with another embodiment of the coal gasification apparatus of heat recovery function of the embodiment of the present invention.
Reference：
Coal gasification apparatus 100 with heat recovery function, gasification furnace 1, combustion chamber 11, shock chamber 12, burner 111, thick slag
Processing system 121, the first heat recovery room 21, drum 22, the second heat recovery room 23, aeration tower 3, flash distillation process system
System 41, subsider 42, fine slag processing system 421, ash water tank 43, saturated hot-water tower 44, high pressure ash water pump 45, Quench
Water pump 47.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein identical from beginning to end
Or similar label represents same or similar element or the element with same or like function.Retouched below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
The invention belongs to coal gasification field, it is related to a kind of coal gasification flow with heat recovery function, is that one kind can be reclaimed
The flow of sensible heat in gasification furnace 1 contained by coal combustion product.Heating gas efficiency can be effectively improved, capacity usage ratio is improved.
The heat recovery section of 1 band of gasification furnace in the present invention is thick by 1200~1650 DEG C of generation of being burnt in gasification furnace 1
Coal gas carries out heat recovery, and the saturated vapor of by-product generates electricity available for steam turbine, or pre-heating technique medium, realizes energy
The recycling of amount so that heating gas efficiency improves 5~8% than simple chilling process, it is recyclable equivalent to feed coal 15~
18% energy.
The coal gasification apparatus with heat recovery function according to embodiments of the present invention are described in detail with reference to Fig. 1 and Fig. 2
100。
Referring to Figures 1 and 2, the coal gasification apparatus 100 with heat recovery function according to embodiments of the present invention, including：Gasification
Stove 1, heat reclaim unit, aeration tower 3 and pulp water processing unit.
Specifically, with reference to Fig. 1 and Fig. 2, gasification furnace 1 is used for the combustion gasification of carbonaceous material.Heat reclaim unit and gasification
Stove 1 is connected, and heat reclaim unit is used to reclaim the heat that gained high temperature and high pressure gas are included after gasification furnace 1 burns.Gas washing
Tower 3 is connected with gasification furnace 1 for carrying out cleaning dust to raw gas.Pulp water processing unit is connected with aeration tower 3 and is used for
Carrying out concentration to fine slag is recycled buck.
Wherein, gasification furnace 1 is mainly used in the combustion gasification of various carbonaceous materials；Heat reclaim unit is the core of equipment, can
Reclaim the heat that gained high temperature and high pressure gas are included after gasification furnace 1 burns；Aeration tower 3 can carry out cleaning dust to raw gas；
Heisui River obtained by the washing raw gas of aeration tower 3 enters pulp water processing unit, and pulp water processing unit can carry out concentration to fine slag makes ash
Water is recycled.Capacity usage ratio can be so improved to a certain extent, save the energy.
Coal gasification apparatus 100 with heat recovery function according to embodiments of the present invention, it is possible to achieve the recycling of energy, also
Heating gas efficiency can be effectively improved, capacity usage ratio is improved, the energy is saved.
According to some specific embodiments of the present invention, gasification furnace 1 can use wet feeding or dry feed.
Wherein, wet method, also known as phase separation method or thermally induced phase separation, it is corresponding with dry method.Principle is：By small point of higher boiling
Son is added in polyolefin as pore-foaming agent, and heating is melt into homogeneous system, and then cooling is separated, through biaxial tension
Small molecule is extracted with organic solvent afterwards, the microporous membrane material being mutually communicated can be prepared.
In addition, the operation temperature of gasification furnace 1 burns liberated heat to maintain by gasification materiel, during wet feeding in slurry
Liquid phase component will gasify absorption heat, just may require that more gasification materiel combustion heat releases to maintain, and oxygen consumption will increase.Gas
Sexual behavior mode can be adapted to according to actual needs by changing the specific feed process of stove 1.
According to some embodiments of the present invention, referring to Figures 1 and 2, gasification furnace 1 includes combustion chamber 11 and shock chamber 12, swashs
Cold house 12 is located at the downstream of combustion chamber 11, and combustion chamber 11 has burner 111, and burner 111 can be used for combustion chamber 11
Inside it is passed through carbonaceous material and oxygen.
Wherein, carbonaceous material and oxygen, which are entered by burner 111 in the combustion chamber 11 of gasification furnace 1, burns, gained raw gas
Temperature is up to 1200~1650 DEG C.
Further, reference picture 1, heat reclaim unit includes the first heat recovery room 21 and drum 22, the first heat recovery
The entrance of room 21 is connected with the outlet of combustion chamber 11, and the outlet of the first heat recovery room 21 is connected with shock chamber 12, and vapour
Bag 22 is connected with the first heat recovery room 21.
The entrance of heat reclaim unit is connected with the combustor exit of gasification furnace 1.Wherein, when being provided only with one in equipment 100
During the first heat recovery room 21, one-part form heat recovery is now can be described as, the foot of one-part form heat recovery can set water
Component, deposition and collection for lime-ash in raw gas are bathed, and raw gas enters aeration tower 3 after spray cooling.
Further, as shown in Fig. 2 heat reclaim unit also includes the second heat recovery room 23, the second heat recovery room 23
It is connected with drum 22, the second heat recovery room 23 is serially connected between shock chamber 12 and aeration tower 3, and the second heat recovery room
23 including one or more.
Heat reclaim unit can be one-part form heat recovery, or multisection type heat recovery, multisection type heat recovery room
It is for example between multiple second heat recovery rooms 23 direct-connected with pipeline.
Further, as shown in Fig. 2 the first heat recovery room 21 and the second heat recovery room 23 are direct-connected by pipeline, and the
Two heat recovery rooms 23 are multiple including what is be serially connected.
For example, in the figure 2 example, the second heat recovery room 23 can be two, and two the second heat recovery rooms 23
It can be connected with the first heat recovery room 21.
Certainly, the second heat recovery room 23 can be three, four, five etc., and the present invention is to the second heat recovery room 23
Number be not especially limited, in practical application can as needed adaptability set.
Alternatively, the first heat recovery room 21 is placed in gasification furnace 1, and the second heat recovery room 23 is placed in outside gasification furnace 1.
Specifically, it is direct-connected with pipeline between multisection type heat recovery room, wherein, one-part form heat recovery room is placed in gasification furnace 1
Interior, remaining each section of heat recovery room is arranged at outside gasification furnace 1.
Each section of heat reclaim unit can with the steam of by-product uniform pressure, can also by-product different pressures grade steam, by-product
Steam can be used for generating electricity, it can also be used to the heating of boiler water.
Alternatively, referring to Figures 1 and 2, the downstream connection of shock chamber 12 has thick slag disposal system 121, the first heat recovery
The bottom of room 21 is provided with water-bath component, is deposited and is collected by thick slag disposal system 121 after spray cooling for raw gas
Lime-ash, water-bath component is connected with pulp water processing unit and pulp water processing unit supplies water to water-bath component.Wherein, thick Slag treatment system
System 121 can extract the thick slag fine slag that burning is produced, and to Heisui River dedusting deoxygenation, complete recycling for water, reduce water resource
Waste.
According to some embodiments of the present invention, referring to Figures 1 and 2, pulp water processing unit includes：Flash distillation process system 41,
Subsider 42, ash water tank 43, the grey water pump 45 of saturated hot-water tower 44 and high pressure, flash distillation process system 41, subsider 42,
The grey water pump 45 of ash water tank 43, saturated hot-water tower 44, high pressure is sequentially connected along water (flow) direction, flash distillation process system 41 and high pressure
Grey water pump 45 is connected with aeration tower 3.
Wherein, referring to Figures 1 and 2, Quench water pump 47 can be provided between shock chamber 12 and aeration tower 3.
Further, as depicted in figs. 1 and 2, the downstream connection of subsider 42 has fine slag processing system 421, flash distillation process
System 41 is connected with saturated hot-water tower 44 for steam to be delivered into saturated hot-water tower 44.
The present invention provides a kind of coal gasification apparatus 100 with heat recovery function, including：Gasification furnace 1, heat reclaim unit,
Aeration tower 3, pulp water processing unit.
Implementing procedure is as follows：Carbonaceous material and oxygen enter the combustion chamber 11 of gasification furnace 1 by burner 111, in combustion chamber 11
Interior generation part redox reaction obtains the raw gas of HTHP；High temperature rough gas cooling down in heat recovery room,
The heat of recovery is by byproduct steam or for heating boiler water, so as to improve the utilization rate of coal.
The raw gas of first heat recovery room 21 enters aeration tower 3 after spray cooling, and rear work is entered after further being purified
Section.
The raw gas of second heat recovery room 23 obtains further net continuously across aeration tower 3 is entered behind multiple heat recovery rooms
Enter rear workshop section after change.
Heisui River obtained by the washing raw gas of aeration tower 3, is carried out after heat recovery, heat recovery into flash distillation process system 41
Heisui River reaches the ash disposal dedusting of subsider 42, and after then reclaiming heat through saturated hot-water tower 44 again, buck is recirculated back to aeration tower
3, this series of process realizes the recycling of buck.
Part redox reaction, gained rough coal occur for the combustion chamber 11 that coal slurry and oxygen enter gasification furnace 1 by burner 111
The temperature of gas is up to 1200~1650 DEG C；HTHP raw gas enters heat reclaim unit, by heat reclaim unit to thick
Coal gas carries out heat recovery；The heat of recovery obtains high steam by drum 22.
For heat reclaim unit, the present embodiment is in two kinds of situation：
First, shown in Fig. 1 for one-part form heat recovery.First heat recovery room 21 import and export respectively with gasification furnace 1
Combustor exit, Quench chamber inlet are direct-connected, and the first heat recovery room 21 is embedded in gasification furnace 1, in the way of radiation heat transfer
Heat is absorbed, the raw gas cooled down by the first heat recovery room 21 is quenched washing into shock chamber 12, be then departed from gasification
Stove 1 enters aeration tower 3.
Second, shown in Fig. 2 for multisection type heat recovery.Multisection type heat recovery includes the first heat recovery room 21, second
Heat recovery room 23 (wherein, the second heat recovery room 23 can be one or more).First heat recovery room 21
Import and export the rough coal feed channel for exporting, going out shock chamber 12 with the combustion chamber 11 of gasification furnace 1 respectively direct-connected, go out the first heat and return
The raw gas for receiving room 21 leaves gasification furnace 1, is directly entered the second heat recovery room 23, after cooling, raw gas is direct
Into the second heat recovery room 23, the raw gas for going out the second heat recovery room 23 enters aeration tower 3.First heat recovery room
21 are embedded in gasification furnace 1, and heat is absorbed in the way of radiation heat transfer, and the second heat recovery room 23 is placed in outside gasification furnace 1,
All absorb direct-connected with pipeline between heat, multiple second heat recovery rooms 23 in the way of heat convection.
Handled for pulp water processing unit, including thick slag disposal system 121, flash distillation process system 41, subsider 42, fine slag
System 421, ash water tank 43 and saturated hot-water tower 44.
Raw gas, by the grey water washing of high pressure, leaves gasification island, into rear workshop section in aeration tower 3 after ash disposal dedusting.
In shock chamber 12, the thick slag spun off from raw gas enters thick slag disposal system 121.
In aeration tower 3, the Heisui River 22 obtained by washing raw gas carries out heat recovery into flash distillation process system 41, reclaimed
Heat enter saturated hot-water tower 44 preheat buck, to reach the purpose of deoxygenation.
The Heisui River 24 that flash distillation process system 41 is enriched with enters subsider 42, and the Heisui River 26 after sedimentation concentration enters at fine slag
Reason system 421 reclaims fine slag, and the buck 25 obtained from subsider 42 passes through ash water tank 43 and enters saturated hot-water tower 44, warp
After the heating deoxygenation of steam 23 for crossing out flash distillation process system 41, buck enters aeration tower 3 through the grey boosting of water pump 45 of high pressure, this
A series of process realizes recycling for water, saves water source.
In summary, the coal gasification apparatus 100 with heat recovery function, can not only be complete by one or more snippets heat recovery room
Into the recycling of energy, the water circulation amount of whole device can also be reduced, equipment size is reduced, investment is reduced.
The present invention relates to coal chemical technology, a kind of coal gasification apparatus 100 with heat recovery function is disclosed, gasification can be reclaimed
The heat that gained high temperature and high pressure gas are included after stove 1 burns, can be with by-product 10.0MPa or the steam of other pressure ratings.
Specifically, the present invention includes the gasification furnace 1 with heat reclaim unit, the aeration tower 3 of cleaning dust is carried out to raw gas
Make the pulp water processing unit that buck is recycled with concentration is carried out to fine slag.Such a coal gasification with heat recovery function
Device 100 can improve the utilization ratio of coal.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment be it is exemplary,
It is not considered as limiting the invention, one of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, changes, replacing and modification.
Claims (10)
1. a kind of coal gasification apparatus with heat recovery function, it is characterised in that including：
Gasification furnace, the combustion gasification for carbonaceous material；
Heat reclaim unit, the heat reclaim unit is connected with the gasification furnace, high for reclaiming gained after gasification furnace burning
The heat that warm gases at high pressure are included；
Aeration tower, the aeration tower is connected with the gasification furnace for carrying out cleaning dust to raw gas；
Pulp water processing unit, the pulp water processing unit is connected with the aeration tower obtains buck for carrying out concentration to fine slag
To recycling.
2. the coal gasification apparatus according to claim 1 with heat recovery function, it is characterised in that the gasification furnace is adopted
With wet feeding or dry feed.
3. the coal gasification apparatus according to claim 1 with heat recovery function, it is characterised in that the gasification furnace bag
Include combustion chamber and be located at the shock chamber in the combustion chamber downstream, the combustion chamber, which has, to be used to be passed through carbonaceous material into combustion chamber
With the burner of oxygen.
4. the coal gasification apparatus according to claim 3 with heat recovery function, it is characterised in that the heat recovery
Device includes the first heat recovery room and drum, and the entrance of the first heat recovery room is connected with the outlet of the combustion chamber,
The outlet of the first heat recovery room is connected with the shock chamber, and the drum is connected with the first heat recovery room.
5. the coal gasification apparatus according to claim 4 with heat recovery function, it is characterised in that the heat recovery
Device also includes the second heat recovery room, and the second heat recovery room is connected with the drum, the second heat recovery room
It is serially connected between the shock chamber and the aeration tower, and the second heat recovery room is including one or more.
6. the coal gasification apparatus according to claim 5 with heat recovery function, it is characterised in that first heat
Recovery room and the second heat recovery room are direct-connected by pipeline, and the second heat recovery room is multiple including what is be serially connected.
7. the coal gasification apparatus according to claim 5 with heat recovery function, it is characterised in that first heat
Recovery room is placed in the gasification furnace, and the second heat recovery room is placed in outside the gasification furnace.
8. the coal gasification apparatus according to claim 4 with heat recovery function, it is characterised in that the shock chamber
Downstream connection has thick slag disposal system, and the bottom of the first heat recovery room is provided with water-bath component, passes through for raw gas
Lime-ash is deposited and collected after spray cooling by thick slag disposal system, the water-bath component is connected and institute with the pulp water processing unit
Pulp water processing unit is stated to supply water to the water-bath component.
9. the coal gasification apparatus according to claim 1 with heat recovery function, it is characterised in that the pulp water processing
Device includes：The grey water pump of flash distillation process system, subsider, ash water tank, saturated hot-water tower and high pressure, the flash distillation process system
System, the grey water pump of the subsider, the ash water tank, the saturated hot-water tower, the high pressure are sequentially connected along water (flow) direction,
The grey water pump of the flash distillation process system and the high pressure is connected with the aeration tower.
10. the coal gasification apparatus according to claim 9 with heat recovery function, it is characterised in that the subsider
Downstream connection have a fine slag processing system, the flash distillation process system is connected with the saturated hot-water tower for steam to be delivered to
The saturated hot-water tower.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210682157.1A CN115197752A (en) | 2016-02-04 | 2016-02-04 | Coal gasification equipment with heat recovery function |
| CN201610080661.9A CN107033967A (en) | 2016-02-04 | 2016-02-04 | Coal gasification apparatus with heat recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610080661.9A CN107033967A (en) | 2016-02-04 | 2016-02-04 | Coal gasification apparatus with heat recovery function |
Related Child Applications (1)
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| CN115197752A (en) | 2022-10-18 |
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Effective date of registration: 20200427 Address after: 100084-82 mailbox, Tsinghua Yuan, Beijing, Haidian District Applicant after: TSINGHUA University Address before: 9 Haidian District District, Tsinghua University, Beijing 100084 (Mechanical Engineering Museum) Applicant before: RESEARCH CENTER OF CLEAN COAL TECH |
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