CN209481586U - Entrained flow bed gasification system - Google Patents
Entrained flow bed gasification system Download PDFInfo
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- CN209481586U CN209481586U CN201821906079.4U CN201821906079U CN209481586U CN 209481586 U CN209481586 U CN 209481586U CN 201821906079 U CN201821906079 U CN 201821906079U CN 209481586 U CN209481586 U CN 209481586U
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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
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Abstract
The utility model discloses entrained flow bed gasification systems, it include: the gasification furnace with radiation waste pot, slag bath, high temperature cyclone separator, the useless pot of convection current, scrubbing tower, high pressure flash device, low pressure flash device, vacuum flash apparatus, vacuum flashing separator, subsider and ash water tank, wherein, cyclone separator, the useless pot of convection current, scrubbing tower are sequentially connected with the outlet of the raw gas of radiation waste pot；High pressure flash device, low pressure flash device, vacuum flash apparatus are sequentially connected with deslagging pond and the outlet of the Heisui River of aeration tower；Vacuum flashing separator is connected with the steam (vapor) outlet of vacuum flash apparatus；Subsider is connected with the leakage fluid dram of the outlet of the concentration Heisui River of vacuum flash apparatus and vacuum flashing separator；Ash water tank is connected with the overflow port of subsider.Thus the entrained flow bed gasification system of the utility model has the advantages that heat energy recovery rate is high, cycling utilization of wastewater rate is high.
Description
Technical field
The utility model belongs to coal gasification field, specifically, the utility model relates to entrained flow bed gasification systems.
Background technique
Coal Gasification Technology has 2 kinds of follow-up process, i.e. chilling process and pot destroying process.Chilling process includes coal slurry preparation, gas
Change the parts such as furnace, shock chamber, venturi spray nozzle, Quench scrubbing tower；Pot destroying process includes that waste heat boiler, deduster, Quench gas return
Recycle compressor, the Quench scrubbing tower etc. returned.There is no the full pot destroying process of Quench scrubbing tower to be not suitable in coal chemical industry.In early stage
Application in, chilling process is for synthesizing ammonia, and full pot destroying process is for generating electricity.This 2 kinds of follow-up process have not subsequent technique
Same influence.In the synthesis gas of chilling process outlet, the content of vapor is higher, can change whole CO in conversion process
At H2And CO2, subsequent to recycle more low level energy.In the synthesis gas of pot destroying process outlet, the content of vapor is lower,
Only part CO need to be transformed into H in conversion process2And CO2, this process is recovered to a part of high potential, is conducive to improve whole
The energy conversion efficiency of a process.
Pot destroying process is compared with chilling process, the former can take some high potentials, and the latter can only take part low level energy,
Total effect is that the former is slightly better than the latter.But for a device, efficiency refers to whole flow process.Improve full-range energy
Transfer efficiency is measured, cannot only see gasification unit, it is often more important that the collocation of whole process unit, it is how that the energy of output is all sharp
It uses, it is not a unit that thermal energy design, which is a system,.Therefore, existing pot destroying process technique is further improved, with
Lifting process efficiency.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is the method for proposing entrained flow bed gasification system and producing coal gas using it, system and method tool with a novel purpose
There is energy utilization rate high, the advantage that heat energy recovery rate is high and cycling utilization of wastewater rate is high.
One aspect according to the present utility model, the utility model proposes a kind of entrained flow bed gasification systems, according to this reality
With novel embodiment, which includes:
Gasification furnace, the gasification furnace include:
Gasify sub- furnace, has vaporizer in the sub- furnace of gasification, the inner wall of the vaporizer is provided with the first water-cooling wall, institute
It states and is provided with burner at the top of the sub- furnace of gasification, the burner is suitable for spraying into water-coal-slurry and oxygen, the gas into the vaporizer
The bottom of beggar's furnace is exported with gasification product；
Radiation waste pot, the radiation waste pot are arranged in the lower section of the sub- furnace of gasification, set on the inner wall of the radiation waste pot
It is equipped with the second water-cooling wall, bottom is formed with shock chamber, and second water-cooling wall has the first steam (vapor) outlet, the radiation waste pot
There is raw gas outlet, institute on side wall of the top with gasification product entrance, between the second water-cooling wall and the shock chamber
There is slag-drip opening and the first Heisui River to export for the bottom for stating shock chamber, and the gasification product entrance exports phase with the gasification product
Even；
Slag bath, the slag bath are connected with the slag-drip opening；
High temperature cyclone separator, the high temperature cyclone separator is interior to have third water-cooling wall, and the third water-cooling wall has
Second steam (vapor) outlet, and the high temperature cyclone separator has raw gas entrance, pre- dedusting gas exit and flying dust outlet, institute
Raw gas entrance is stated to be connected with raw gas outlet；
Convection current is given up pot, and the convection current gives up and is equipped with the 4th water-cooling wall in pot, and the 4th water-cooling wall has third steam (vapor) outlet,
And the useless cookware of the convection current has gas import and cooled coal gas outlet after pre- dedusting, gas import and the pre- dedusting after the pre- dedusting
Gas outlet afterwards is connected；
There is cooled coal gas import, spray water inlet, purification gas exit and the second Heisui River to go out for scrubbing tower, the scrubbing tower
Mouthful, the cooled coal gas import is connected with cooled coal gas outlet；
There is Heisui River entrance, the first concentration Heisui River outlet, the 4th steam to go out for high pressure flash device, the high pressure flash device
Mouthful, the Heisui River entrance is connected with the outlet of the first Heisui River and the outlet of the second Heisui River respectively；
Low pressure flash device, the low pressure flash device have the first concentration Heisui River entrance, the second concentration Heisui River outlet, the
Five steam (vapor) outlets, the first concentration Heisui River entrance are connected with the outlet of first concentration Heisui River；
Vacuum flash apparatus, the low pressure flash device have the second concentration Heisui River entrance, the outlet of third concentration Heisui River, the
Six steam (vapor) outlets, the second concentration Heisui River entrance are connected with the outlet of second concentration Heisui River；
Vacuum flashing separator, the vacuum flashing separator has the 6th steam inlet, leakage fluid dram and exhaust outlet, described
6th steam inlet is connected with the 6th steam (vapor) outlet；
Subsider, the subsider are connected with the outlet of third concentration Heisui River and the leakage fluid dram；
Ash water tank, the ash water tank are connected with the overflow port of the subsider.
In addition, can also have following additional technology according to the entrained flow bed gasification system of the utility model above-described embodiment
Feature:
In the present invention, the entrained flow bed gasification system of above-described embodiment further comprises: drum, the drum and institute
State the first steam (vapor) outlet, the second steam (vapor) outlet is connected with the third steam (vapor) outlet.
In the present invention, the entrained flow bed gasification system of above-described embodiment further comprises: coal pulverizer, the coal pulverizer
It is exported with coal feed point, water inlet and coal slurry；Coal slurry slot, the coal slurry slot respectively with coal slurry outlet and the gasification furnace
Burner is connected.
In the present invention, the flying dust outlet of the high temperature cyclone separator is connected with the coal feed point of the coal pulverizer.
In the present invention, the ash water tank is connected with the water inlet of the coal pulverizer.
In the present invention, the entrained flow bed gasification system of above-described embodiment further comprises: low pressure grey water pump, described low
Pressure grey water pump is connected with the ash water tank；Oxygen-eliminating device, the oxygen-eliminating device and the low pressure grey water pump and the 5th steam (vapor) outlet
It is connected；Grey water heater, the ash water heater are connected with the oxygen-eliminating device and the 4th steam (vapor) outlet；And high pressure buck
Pump, the high pressure grey water pump are connected with the spray water inlet of the aeration tower.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to the entrained flow bed gasification system of the utility model one embodiment.
Fig. 2 is the process according to the method using entrained flow bed gasification system production coal gas of the utility model one embodiment
Figure.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
One aspect according to the present utility model, the utility model proposes a kind of entrained flow bed gasification system, below with reference to
The entrained flow bed gasification system of the utility model specific embodiment is described in detail in Fig. 1.
As shown in Figure 1, the entrained flow bed gasification system of the utility model embodiment includes: gasification furnace 100, slag bath 30, high temperature
Cyclone separator 40, convection current useless pot 50, scrubbing tower 60, high pressure flash device 70, low pressure flash device 80, vacuum flash apparatus
90, vacuum flashing separator 100, subsider 110 and ash water tank 120.
Wherein, gasification furnace 100 includes: the sub- furnace 10 of gasification and radiation waste pot 20.
Specifically, gasifying, sub- furnace 10 is interior to have vaporizer 11, and the inner wall of the vaporizer 11 is provided with the first water-cooling wall 12,
Burner 13 is provided at the top of the gasification furnace, the burner 13 is suitable for spraying into water-coal-slurry and oxygen into the vaporizer 11,
The bottom of the sub- furnace 10 of gasification has gasification product outlet 14；Radiation waste pot 20, the setting of radiation waste pot 20 is in gasification
The lower section of furnace 10 is provided with the second water-cooling wall 21 on the inner wall of radiation waste pot, and bottom is formed with shock chamber 22, second water cooling
Wall 21 has the first steam (vapor) outlet 23, and the top of the radiation waste pot 20 has gasification product entrance 24, is located at the second water-cooling wall
There is raw gas outlet 25, the bottom of the shock chamber has slag-drip opening 26 and first black on side wall between the shock chamber
Water out 27, the gasification product entrance 24 are connected with gasification product outlet 14.
Specific embodiment according to the present utility model, slag bath 30 are connected with the slag-drip opening 26 of radiation waste pot 20, so as to useless
Slag is cooled down and is recycled.
Specific embodiment according to the present utility model, high temperature cyclone separator is interior to have third water-cooling wall 41, the third
Water-cooling wall 41 has the second steam (vapor) outlet 42, and the high temperature cyclone separator 40 has raw gas entrance 43, pre- dedusting coal
Gas outlet 44 and flying dust outlet 45, the raw gas entrance 43 are connected with raw gas outlet 25.
Specific embodiment according to the present utility model, convection current is given up, and pot 50 is interior to be equipped with the 4th water-cooling wall 51, the 4th water cooling
Wall 51 has third steam (vapor) outlet 52, and the useless cookware of the convection current has gas import 53, cooled coal gas outlet 54 after pre- dedusting, described
Gas import 53 is connected with gas outlet 44 after the pre- dedusting after pre- dedusting.
Specific embodiment according to the present utility model, scrubbing tower 60 have cooled coal gas import 61, spray water inlet 62, purification
Gas exit 63 and the second Heisui River outlet 64, the cooled coal gas import 61 are connected with cooled coal gas outlet 54.
There is Heisui River entrance 71, first Heisui River is concentrated for specific embodiment according to the present utility model, high pressure flash device 70
The 72, the 4th steam (vapor) outlet 73 is exported, the Heisui River entrance 71 is connected with the outlet 27 of the first Heisui River and the second Heisui River outlet 64 respectively.
Specific embodiment according to the present utility model, low pressure flash device 80 have the first concentration Heisui River entrance 81, second
Heisui River is concentrated and exports the 82, the 5th steam (vapor) outlet 83, the first concentration Heisui River entrance 81 and first concentration Heisui River outlet 72
It is connected.
Specific embodiment according to the present utility model, low pressure flash device 90 have the second concentration Heisui River entrance 91, third
Heisui River is concentrated and exports the 92, the 6th steam (vapor) outlet 93, the second concentration Heisui River entrance 91 and second concentration Heisui River outlet 82
It is connected.
Specific embodiment according to the present utility model, vacuum flashing separator have the 6th steam inlet 101, leakage fluid dram
102 and exhaust outlet 103, the 6th steam inlet 101 be connected with the 6th steam (vapor) outlet 93.
Specific embodiment according to the present utility model, subsider 110 and third concentration Heisui River outlet 92 and the row
Liquid mouth 102 is connected；Ash water tank 120, the ash water tank 120 are connected with the overflow port of the subsider 110.
The entrained flow bed gasification system of the utility model above-described embodiment has the useless pot of high temperature cyclone separator, convection current as a result,
And scrubbing tower, and then the rate of recovery of sensible heat of raw gas can be significantly improved, improve heat utilization rate.And it is further provided with
A series of usage on black water device includes high pressure flash device, low pressure flash device, vacuum flash apparatus, vacuum flashing separation
Device, subsider and ash water tank, and then integrated treatment effectively can be carried out to the Heisui River generated in system, avoid direct emission from making
At water resource waste.Therefore, coal can effectively be prepared using the entrained flow bed gasification system of the utility model above-described embodiment
Gas, and Exposure degree rate is high, while also achieving the synthetical recovery processing of waste water.
Specific embodiment according to the present utility model, as shown in Fig. 2, the entrained flow bed gasification system of above-described embodiment can be with
Further comprise: drum 130, the drum 130 are steamed with first steam (vapor) outlet 23, the second steam (vapor) outlet 42 and the third
Vapor outlet 52 is connected.The first steaming that second water-cooling wall 21 in radiation waste pot 20 can be generated by setting drum 130 as a result,
The 4th water-cooling wall 51 produces in the useless pot 50 of the second steam and convection current that third water-cooling wall 41 generates in vapour, high temperature cyclone separator 40
Raw third steam is collected and handles, for subsequent workshop section's focus utilization.
The entrained flow bed gasification system of specific embodiment according to the present utility model, above-described embodiment can also be wrapped further
Include: coal pulverizer 140, the coal pulverizer 140 have coal feed point 141, water inlet 142 and coal slurry outlet 143；Coal slurry slot 150, it is described
Coal slurry slot 150 is connected with the burner 13 of coal slurry outlet 143 and the gasification furnace respectively.Thus coal pulverizer 140 and coal are utilized
Water-coal-slurry needed for effectively gasification can be made in feed coal by stock tank 150 produces to further increase gasification efficiency and coal gas
Rate.
Specific embodiment according to the present utility model, flying dust outlet 45 and the coal pulverizer of high temperature cyclone separator 40
140 coal feed point 141 is connected.Firstly, by the way that high temperature cyclone separator 40 resistant to high temperature is arranged, i.e., in high temperature cyclone separator 40
It is provided with third water-cooling wall 41, and then further recycles the waste heat of raw gas while carrying out effective dedusting to raw gas, is mentioned
High waste heat recovery efficiency.It is returned in addition, coal pulverizer 140 can also be returned by the flying dust that high temperature cyclone separator 40 is isolated
It receives and utilizes, and then improve feed coal utilization rate.
In addition, specific embodiment according to the present utility model, the water inlet of the ash water tank 120 and the coal pulverizer 140
142 are connected.It first can be effectively to the shock chamber radiation waste Guo Nei and aeration tower by the way that a series of usage on black water device is arranged
The Heisui River of generation is recycled, and then avoids the direct outlet waste of water resource.Secondly, further by ash water tank most
Obtained overflow water is handled eventually and returns to coal pulverizer for water-coal-slurry processed, and then can save significantly on water-coal-slurry water processed.Therefore, exist
While sufficiently recycling to water resource, production gas cost further reduced.
The entrained flow bed gasification system of specific embodiment according to the present utility model, above-described embodiment further comprises: low pressure
Grey water pump 160, oxygen-eliminating device 170, grey water heater 180 and high pressure grey water pump 190.Wherein, the low pressure grey water pump 160 with it is described
Ash water tank 120 is connected；The oxygen-eliminating device 170 is connected with the low pressure grey water pump 160 and the 5th steam (vapor) outlet 83；The ash
Water heater 180 is connected with the oxygen-eliminating device 170 and the 4th steam (vapor) outlet 73；And the high pressure grey water pump 190 and institute
The spray water inlet 62 for stating aeration tower 60 is connected.Thus, it is possible to using low pressure grey water pump 160 by another portion in ash water tank 120
Point buck is pumped into oxygen-eliminating device 170, and the 5th steam generated using low pressure flash device 80 to the buck in oxygen-eliminating device 170 into
Row deoxygenation processing；Buck in oxygen-eliminating device 170 is sent to grey water heater 180, and using being generated in high pressure flash device 70
The 4th steam the buck in the grey water heater 180 is heated, and will be after heating using high pressure grey water pump 190
Buck is sent to the elution for being used for coal gas in aeration tower 60.Therefore, the utility model by further be arranged low pressure grey water pump 160,
Oxygen-eliminating device 170, grey water heater 180 and high pressure grey water pump 190 are recycled usage on black water acquisition buck, but also
The 4th steam generated in the 5th steam and high pressure flash device 70 generated using low pressure flash device 80 carries out again buck
Secondary deoxygenation and heating effectively realize the elution dedusting to coal gas to meet the requirement of 60 leacheate of aeration tower.
It is of the invention to utilizing below with reference to Fig. 2 in order to facilitate the entrained flow bed gasification system for understanding the above embodiment of the present invention
The method of the entrained flow bed gasification system production coal gas of embodiment is described.
Specific embodiment according to the present utility model, this method comprises:
S100: using gasifying, sub- furnace gasifies to water-coal-slurry, to obtain gasification product；
S200: carrying out heat recovery and cooling so that being advanced into radiation waste pot under the gasification product, thick to obtain
Coal gas and waste residue simultaneously generate the first steam and the first Heisui River, the waste residue and drain into the slag bath；
S300: will be dusted in the supreme temperature cyclone separator of the rough coal pneumatic transmission, to obtain pre- dedusting coal gas and to fly
Ash, and generate the second steam；
S400: pre- dedusting coal gas being sent to convection current to give up carries out waste heat recycling in pot, to obtain cooled coal gas, and generates third
Steam；
S500: the cooled coal gas is sent to eluting in scrubbing tower, to be purified coal gas, and it is black to generate second
Water；
S600: it is discharged the first Heisui River being discharged in the shock chamber of the radiation waste pot and in the scrubbing tower second black
Water is sent to high pressure flash is carried out in high pressure flash distillation plant, to obtain the 4th steam and the first concentration Heisui River；
S700: first concentration Heisui River is sent to low pressure flash is carried out in low pressure flash device, to obtain the 5th steaming
Vapour and the second concentration Heisui River；
S800: second concentration Heisui River is sent to vacuum flashing is carried out in vacuum flash apparatus, to obtain the 6th steaming
Heisui River is concentrated in vapour and third；
S900: the 6th steam is sent to separating treatment is carried out in vacuum flashing separator, to isolate liquid simultaneously
Atmosphere is discharged in gas；
S1000: third concentration Heisui River is sent to settling in subsider, and overflowing ash water is drained into ash water tank.
The method using entrained flow bed gasification system production coal gas of the utility model above-described embodiment is revolved using high temperature as a result,
Wind separator, the useless pot of convection current and scrubbing tower are successively to raw gas dedusting, recovery waste heat, and then it is aobvious to significantly improve raw gas
The rate of recovery of heat improves heat utilization rate, while being purified by cyclonic separation and elution to raw gas, significantly improves
Coal gas purity.And it is further separated using high pressure flash device, low pressure flash device, vacuum flash apparatus, vacuum flashing
Device, subsider and ash water tank carry out a series of integrated treatment to Heisui River, effectively improve water utilization rate, avoid Heisui River straight
Run in put and causes water resource waste.Therefore, coal is produced using entrained flow bed gasification system using the utility model above-described embodiment
Coal gas can be effectively prepared in the method for gas, and Exposure degree rate is high, while also achieving the synthetical recovery processing of waste water.
The method of specific embodiment according to the present utility model, the production coal gas of above-described embodiment further comprises:
S1100: the first steam, the second steam and third steam that step S200-S400 is generated are sent to drum 130.As a result, by setting
Setting drum 130 can be to third in the first steam, high temperature cyclone separator 40 of the second water-cooling wall 21 generation in radiation waste pot 20
The third steam that the 4th water-cooling wall 51 generates in the useless pot 50 of the second steam and convection current that water-cooling wall 41 generates is collected and locates
Reason, in case subsequent workshop section utilizes.
The method of specific embodiment according to the present utility model, the production coal gas of above-described embodiment further comprises:
S1200: slurrying is carried out to feed coal using coal pulverizer, to obtain water-coal-slurry and to send to coal slurry slot.Thus coal pulverizer 140 is utilized
Water-coal-slurry needed for gasification effectively being made in feed coal with coal slurry slot 150, to further increase gasification efficiency and coal
Gas yield.
The method of specific embodiment according to the present utility model, the production coal gas of above-described embodiment further comprises:
S1300: the flying dust isolated in high temperature cyclone separator described in step S300 is back to step S1200 and carries out slurrying.By
The flying dust isolated in raw gas can be returned to coal pulverizer 140 and is recycled by this, and then improve feed coal utilization rate.
The method of specific embodiment according to the present utility model, the production coal gas of above-described embodiment further comprises: S1400
A part of buck in ash water tank described in step S1000 is back to step S1200 and is used for slurrying.Further will as a result,
The overflow water that final process obtains in ash water tank returns to coal pulverizer and is used for water-coal-slurry processed, and then can save significantly on water-coal-slurry processed and use
Water.Therefore, while sufficiently recycling to water resource, it further reduced production gas cost.
The method of specific embodiment according to the present utility model, the production coal gas of above-described embodiment further comprises:
Another part buck in step S1000 in ash water tank: being pumped into oxygen-eliminating device by S1500 using low pressure grey water pump, and utilizes step
The 5th steam generated in rapid S700 carries out deoxygenation processing to the buck in the oxygen-eliminating device；S1600: will be in the oxygen-eliminating device
Buck is sent to grey water heater, and using the 4th steam generated in step S600 to the buck in the grey water heater into
Row heating, and the buck after heating is sent to step S500 using high pressure grey water pump and is used for the elution.Therefore, this is practical new
Type is by being further arranged low pressure grey water pump 160, oxygen-eliminating device 170, grey water heater 180 and high pressure grey water pump 190, by Hei Shuichu
Reason obtains buck and is recycled, but also the 5th steam and high pressure flash device 70 generated using low pressure flash device 80
4th steam of middle generation carries out deoxygenation and heating again to buck, effectively real to meet the requirement of 60 leacheate of aeration tower
Now to the elution dedusting of coal gas.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Identical embodiment or example need not be directed to by stating.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.In addition, without conflicting with each other, this field
Technical staff can carry out the feature of different embodiments or examples described in this specification and different embodiments or examples
Combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (6)
1. a kind of entrained flow bed gasification system characterized by comprising
Gasification furnace, the gasification furnace include:
Gasify sub- furnace, has vaporizer in the sub- furnace of gasification, the inner wall of the vaporizer is provided with the first water-cooling wall, the gas
Burner is provided at the top of beggar's furnace, the burner is suitable for spraying into water-coal-slurry and oxygen, gasification into the vaporizer
The bottom of furnace is exported with gasification product；
Radiation waste pot, the radiation waste pot are arranged in the lower section of the sub- furnace of gasification, are provided on the inner wall of the radiation waste pot
Second water-cooling wall, bottom are formed with shock chamber, and second water-cooling wall has the first steam (vapor) outlet, the top of the radiation waste pot
There is raw gas outlet on side wall with gasification product entrance, between the second water-cooling wall and the shock chamber, it is described to swash
There is slag-drip opening and the first Heisui River to export for the bottom of cold house, and the gasification product entrance is connected with gasification product outlet；
Slag bath, the slag bath are connected with the slag-drip opening；
High temperature cyclone separator, the high temperature cyclone separator is interior to have third water-cooling wall, and the third water-cooling wall has second
Steam (vapor) outlet, and the high temperature cyclone separator has raw gas entrance, pre- dedusting gas exit and flying dust outlet, it is described thick
Gas entry is connected with raw gas outlet；
Convection current is given up pot, and the convection current gives up and is equipped with the 4th water-cooling wall in pot, and the 4th water-cooling wall has third steam (vapor) outlet, and
The useless cookware of the convection current has gas import and cooled coal gas outlet after pre- dedusting, gas import and gas after the pre- dedusting after the pre- dedusting
Outlet is connected；
Scrubbing tower, the scrubbing tower have cooled coal gas import, spray water inlet, purification gas exit and the outlet of the second Heisui River, institute
Cooled coal gas import is stated to be connected with cooled coal gas outlet；
High pressure flash device, the high pressure flash device have Heisui River entrance, the first concentration Heisui River outlet, the 4th steam (vapor) outlet,
The Heisui River entrance is connected with the outlet of the first Heisui River and the outlet of the second Heisui River respectively；
There is the first concentration Heisui River entrance, the second concentration Heisui River outlet, the 5th to steam for low pressure flash device, the low pressure flash device
Vapor outlet, the first concentration Heisui River entrance are connected with the outlet of first concentration Heisui River；
There is the second concentration Heisui River entrance, the outlet of third concentration Heisui River, the 6th to steam for vacuum flash apparatus, the low pressure flash device
Vapor outlet, the second concentration Heisui River entrance are connected with the outlet of second concentration Heisui River；
Vacuum flashing separator, the vacuum flashing separator have the 6th steam inlet, leakage fluid dram and exhaust outlet, the described 6th
Steam inlet is connected with the 6th steam (vapor) outlet；
Subsider, the subsider are connected with the outlet of third concentration Heisui River and the leakage fluid dram；
Ash water tank, the ash water tank are connected with the overflow port of the subsider.
2. entrained flow bed gasification system according to claim 1, which is characterized in that further comprise:
Drum, the drum are connected with first steam (vapor) outlet, the second steam (vapor) outlet and the third steam (vapor) outlet.
3. entrained flow bed gasification system according to claim 2, which is characterized in that further comprise:
Coal pulverizer, the coal pulverizer have coal feed point, water inlet and coal slurry outlet；
Coal slurry slot, the coal slurry slot are connected with the burner of coal slurry outlet and the gasification furnace respectively.
4. entrained flow bed gasification system according to claim 3, which is characterized in that the flying dust of the high temperature cyclone separator goes out
Mouth is connected with the coal feed point of the coal pulverizer.
5. entrained flow bed gasification system according to claim 4, which is characterized in that the ash water tank and the coal pulverizer into
The mouth of a river is connected.
6. entrained flow bed gasification system according to claim 5, which is characterized in that further comprise:
Low pressure grey water pump, the low pressure grey water pump are connected with the ash water tank；
Oxygen-eliminating device, the oxygen-eliminating device are connected with the low pressure grey water pump and the 5th steam (vapor) outlet；
Grey water heater, the ash water heater are connected with the oxygen-eliminating device and the 4th steam (vapor) outlet；And
High pressure grey water pump, the high pressure grey water pump are connected with the spray water inlet of the scrubbing tower.
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| CN201821906079.4U CN209481586U (en) | 2018-11-19 | 2018-11-19 | Entrained flow bed gasification system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109504453A (en) * | 2018-11-19 | 2019-03-22 | 清华大学山西清洁能源研究院 | The method of entrained flow bed gasification system and production coal gas |
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