CN203095998U - Efficient and energy-saving pulverized coal pressure gasifying device - Google Patents
Efficient and energy-saving pulverized coal pressure gasifying device Download PDFInfo
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- CN203095998U CN203095998U CN2012206088370U CN201220608837U CN203095998U CN 203095998 U CN203095998 U CN 203095998U CN 2012206088370 U CN2012206088370 U CN 2012206088370U CN 201220608837 U CN201220608837 U CN 201220608837U CN 203095998 U CN203095998 U CN 203095998U
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- coal
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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
Abstract
The utility model relates to an efficient and energy-saving pulverized coal pressure gasifying device. The efficient and energy-saving pulverized coal pressure gasifying device comprises a pulverized coal preparation conveying mechanism, a pressure gasifying mechanism and a coal-water slurry preparation conveying mechanism, wherein the pulverized coal preparation conveying mechanism consists of a coal pulverizer, a pulverized coal bin, a pulverized coal locking hopper and a pulverized coal pipeline; the pressure gasifying mechanism is composed of a combustion chamber and a shock chamber; the coal-water slurry preparation conveying mechanism consists of a coal mill, a coal slurry slot, a coal slurry pump and a coal slurry pipeline; a gasifying spray nozzle is arranged on the top of the combustion chamber or the side part of the combustion chamber and communicated with the inner part of the combustion chamber; and the coal slurry pipeline and the pulverized coal pipeline are connected with the gasifying spray nozzle, respectively. By adopting the technical scheme, a steaming process and a matched boiler system thereof are removed in the pulverized coal pressure gasifying process. Besides, a water-cooling wall structure and a matched boiler system thereof are removed on heat insulation form of the gasifying furnace; and a refractory brick structure is adopted, so that the system is more energy-saving, the coal gasifying efficiency is higher, and therefore, the efficient and energy-saving pulverized coal pressure gasifying device is applicable to a gasifying process for coals with a low ash meting point.
Description
Technical field
The utility model relates to a kind of powdered coal pressuring gasified device, more specifically says, relates to a kind of to the further improved energy-efficient powdered coal pressuring gasified device of existing fine coal air flow bed pressurizing gasifying apparatus.
Background technology
At present, the powdered coal pressuring gasified technology of air flow bed is many both at home and abroad, more in the Application in Chemical Engineering of coal is technology such as space flight stove, GSP, she1l, these technology common features are at first to produce fine coal, pressurization and vaporized chemical (oxygen and steam) are transported in the vapourizing furnace together again, at high temperature fine coal carries out unburnt gasification reaction, produces the industrial gas based on carbon monoxide and hydrogen; Fine coal in vapourizing furnace, carry out anoxycausis and and water vapour react, carbon in the fine coal is by the solid-state gaseous compound that is converted into, ash in the fine coal is owing to can't just flow out from the vapourizing furnace cinder notch with the molten state form by gasification, and combustion, and cool off the shock chamber that enters into vapourizing furnace; In the prior art, the vapourizing furnace of several gasification technologies all adopts water wall structure to protect cylindrical shell with the opposing hyperthermia radiation.
A lot of reactions can take place in fine coal in vapourizing furnace, its principal reaction equation is:
①C+O
2＝CO
2+395.2KJ/mol；
②C+0.5O
2＝CO+110.5KJ/mol；
③CO+0.5O
2＝CO
2+284.1KJ/mol；
④CO+H
2O＝CO
2+H
2+41.2KJ/mol；
⑤C+2H
2＝CH
4+75.2KJ/mol；
⑥CO
2+C＝2CO-173.0KJ/mol；
⑦C+H
2O＝CO+H
2-131.9KJ/mol；
⑧C+2H
2O＝CO
2+2H
2-90.3KJ/mol。
The heat of vapourizing furnace is mainly from burning of coal, perfect combustion will generate carbonic acid gas, incomplete combustion produces carbon monoxide, every mole of carbon perfect combustion liberated heat manys 284.7KJ than incomplete combustion, under the prerequisite that guarantees vapourizing furnace demand heat, just must save the living carbon monoxide of heat fecund in order to obtain more carbon monoxide, reduce carbon dioxide generating.
But in the prior art, because when adopting the low ash smelting point coal, the adiabatic water wall structure that adopts of vapourizing furnace does not just possess the advantage of saving heat, need on the contrary in vapourizing furnace, to absorb a large amount of heats, thereby reduced the generation of carbon monoxide, water wall structure also has the donkey boiler system of more complicated in addition, extra consumption and tediously long flow process and operation easier have been increased to system especially, need develop a kind of novel energy-efficient powdered coal pressuring gasified technology in order to overcome this drawback, to remedy the deficiencies in the prior art.
The utility model content
In view of this, the utility model mainly provides a kind of energy-efficient powdered coal pressuring gasified device, by the technical program, is improvement and the raising to existing several powdered coal pressuring gasified devices, using the technical program can raise the efficiency in the basic top cylinder metallization processes flow process of original gasification installation.
In order to achieve the above object, the technical solution of the utility model is achieved in that a kind of energy-efficient powdered coal pressuring gasified device, include fine coal and prepare transfer mechanism, pressurized gasification mechanism and coal water slurry and prepare transfer mechanism, described fine coal prepares transfer mechanism and is made of fine coal grinding machine, fine coal storehouse, fine coal lock hopper and fine coal pipeline; Described pressurized gasification mechanism is made of combustion chamber and shock chamber; Described coal water slurry prepares transfer mechanism and is made of coal pulverizer, coal slurry groove, coal slurry pump and coal slurry pipeline; Described gasification nozzle is arranged on the sidepiece of the top or the combustion chamber of combustion chamber, and communicates with inside, combustion chamber, and described coal slurry pipeline links to each other with gasification nozzle respectively with the fine coal pipeline.
Described gasification nozzle links to each other with the hyperbaric oxygen feed channel.
Described gasification nozzle can be arranged on the sidepiece of top of combustion chamber and combustion chamber respectively simultaneously.
The both sides of described combustion chamber are provided with several gasification nozzles symmetrically.
The inwall of the combustion chamber in the described pressurized gasification mechanism adopts firebrick structure.
During a kind of energy-efficient powdered coal pressuring gasified device busy of the utility model, 1. produce fine coal with grinding oven dry after the raw coal fragmentation, described fine coal is sent into the fine coal feed hopper after pressurizeing through the fine coal lock hopper, enter gasification nozzle by feed hopper and high-pressure powdered coal pipeline then, enter the vapourizing furnace combustion chamber afterwards; 2. will produce coal water slurry through entering the coal water slurry grinding machine through grinding after the raw coal fragmentation, coal water slurry enters the storage of coal water slurry storage tank, send into gasification nozzle through coal water slurry pump pressurization back by the high pressure water coal slurry pipeline afterwards, enter the combustion chamber by gasification nozzle at last and come replenishment system moisture; 3. the hyperbaric oxygen tracheae alignment vapourizing furnace input oxygen that is connected with described gasification nozzle; Violent chemical reaction takes place in 4. described fine coal, coal water slurry and high pressure oxygen, and generating carbon monoxide and hydrogen is main industrial gas; 5. implementation step also includes: described industrial gas carries out the synthetic gas that water bath dust-removing is formed for subsequent processing by the shock chamber.
Beneficial effect after the employing technique scheme is: a kind of energy-efficient powdered coal pressuring gasified device, pass through the technical program, 1. owing to removed the adding of steam gasification agent, it is convenient succinct to adopt coal water slurry to replace, do not need for this reason and supporting boiler systems, system flow is further simplified; In addition since coal water slurry possess easily produce, safety, the stable characteristics such as conveyings that are easy to, and come than easier to system's adding steam, calorific value efficient is higher; 2. vapourizing furnace combustion chamber adiabatic method adopts firebrick structure, has cancelled water wall structure and has further saved the vapourizing furnace heat, has increased the output of effective gas; Simultaneously, supporting drum, water circulating pump, oiler feed, the medicine system of former water wall structure all given up to fall, and system operation difficulty and flow process reduce significantly; 3. be fit to the fine coal gasification process of low ash smelting point coal more, can continue to adopt water wall structure if run into the high-melting-point coal.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Fig. 2 is the one-piece construction synoptic diagram of another embodiment of the present utility model.
Embodiment
Below in conjunction with accompanying drawing specific embodiment in the utility model is described in further detail.
As shown in Figure 1, a kind of energy-efficient powdered coal pressuring gasified device that relates to of the utility model includes the gasification structure, fine coal prepares transfer mechanism and coal slurry prepares transfer mechanism; Described gasification mechanism includes the shock chamber 15 that portion's generating gasification reaction within it forms the combustion chamber 14 of industrial gas and is used for the coal gas water bath dust-removing is formed unstripped gas; Described fine coal prepares transfer mechanism and includes and be used for feed coal 2 is made the fine coal grinding machine 8 of fine coal, the fine coal storehouse 9 that is used to lay in described fine coal, the fine coal lock hopper 10 that is used for the described fine coal of positive delivery, fine coal feed hopper 11 and fine coal pipeline 12; Described coal slurry prepare transfer mechanism include be used for feed coal 2, produce the used coal-grinding tank 1 of coal water slurry, form coal water slurry coal pulverizer 3, be used to lay in described coal water slurry coal slurry groove 4, be used to carry the high-pressure coal pulp pump 5 and the high-pressure coal slurry pipeline 6 of described coal water slurry; High-pressure coal slurry pipeline 6 links to each other with gasification nozzle 13 respectively with fine coal pipeline 12, and gasification nozzle 13 is arranged on the combustion chamber 14, and is connected with 14 inside, combustion chamber; Described gasification nozzle 13 can be arranged on 14 tops, combustion chamber, and gasification nozzle 13 also is connected with high pressure oxygen pipeline 7, and described high pressure oxygen pipeline 7 delivering oxygens enter combustion chamber 14.
As shown in Figure 2, another embodiment of the present utility model, owing to adopted fine coal and coal water slurry charging simultaneously form, in order to enlarge inlet amount, gasification nozzle 13 can be provided with a plurality of, enters respectively from the vapourizing furnace different positions, and top gasification nozzle 13 enters coal water slurry, vapourizing furnace side gasification nozzle 13 enters fine coal, has been combined to form the descending system bottle coal gasification structure of big coal feeding amount by solid.
A kind of energy-efficient powdered coal pressuring gasified device of the utility model is implemented as follows:
1. the water of feed coal after fragmentation 2 and coal-grinding tank 1 is sent to coal pulverizer 3, and common the grinding made the finite concentration coal water slurry, enters combustion chamber 14 along high-pressure coal slurry pipeline 6 by gasification nozzle 13 through coal slurry groove 4, high-pressure coal pulp pump 5 then;
2. the feed coal after fragmentation 2 is transported to fine coal grinding machine 8, makes the fine coal of certain particle size, enters fine coal lock hopper 10 through fine coal storehouse 9 then, enters fine coal feed hopper 11 again, enters combustion chamber 14 along fine coal pipeline 12 through gasification nozzle 13 by carrier gas afterwards;
3. the high pressure oxygen pipeline 7 input oxygen that are connected with gasification nozzle 13 enter combustion chamber 14;
4. fine coal, coal water slurry, high pressure oxygen enter the combustion chamber 14 of gasification structure vapourizing furnace by gasification nozzle 13, under the environment of High Temperature High Pressure, violent gasification reaction takes place in coal water slurry, fine coal and vaporized chemical oxygen, generation is based on the industrial gas of carbon monoxide and hydrogen, after coal gas carries out water bath dust-removing by shock chamber 15 again, discharge shock chamber 15 through gas exit, be formed for the unstripped gas of subsequent processing.
In the utility model, the both sides of described combustion chamber 14 are provided with several gasification nozzles 13 symmetrically, during work, 13 pairs of sprays of two relative gasification nozzles, when reducing gasification nozzle 13 work to the impact of combustion chamber 14 inwalls.
In sum, the energy-efficient powdered coal pressuring gasified device that the utility model relates to, vaporized chemical adds and simplification heat insulating construction mode through simplifying, reduce the gasification structure auxiliary facility, reduce calorific loss in the vapourizing furnace, further simplified flow process, improved efficient, more energy-conservation, for the coal gasification of low ash smelting point coal provides better process program.
The above is a preferred embodiments of the present utility model only, is not to be used to limit protection domain of the present utility model.
Claims (5)
1. energy-efficient powdered coal pressuring gasified device, it is characterized in that, include fine coal and prepare transfer mechanism, pressurized gasification mechanism and coal water slurry and prepare transfer mechanism, described fine coal prepares transfer mechanism and is made of fine coal grinding machine, fine coal storehouse, fine coal lock hopper and fine coal pipeline; Described pressurized gasification mechanism is made of combustion chamber and shock chamber; Described coal water slurry prepares transfer mechanism and is made of coal pulverizer, coal slurry groove, coal slurry pump and coal slurry pipeline; Described gasification nozzle is arranged on the sidepiece of the top or the combustion chamber of combustion chamber, and communicates with inside, combustion chamber, and described coal slurry pipeline links to each other with gasification nozzle respectively with the fine coal pipeline.
2. a kind of energy-efficient powdered coal pressuring gasified device according to claim 1 is characterized in that described gasification nozzle links to each other with the hyperbaric oxygen feed channel.
3. a kind of energy-efficient powdered coal pressuring gasified device according to claim 1 and 2 is characterized in that described gasification nozzle can be arranged on the sidepiece of top of combustion chamber and combustion chamber respectively simultaneously.
4. a kind of energy-efficient powdered coal pressuring gasified device according to claim 3 is characterized in that the both sides of described combustion chamber are provided with several gasification nozzles symmetrically.
5. a kind of energy-efficient powdered coal pressuring gasified device according to claim 1 is characterized in that, the inwall of the combustion chamber in the described pressurized gasification mechanism adopts firebrick structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206088370U CN203095998U (en) | 2012-11-19 | 2012-11-19 | Efficient and energy-saving pulverized coal pressure gasifying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206088370U CN203095998U (en) | 2012-11-19 | 2012-11-19 | Efficient and energy-saving pulverized coal pressure gasifying device |
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| CN203095998U true CN203095998U (en) | 2013-07-31 |
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| CN2012206088370U Expired - Fee Related CN203095998U (en) | 2012-11-19 | 2012-11-19 | Efficient and energy-saving pulverized coal pressure gasifying device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897739A (en) * | 2014-04-15 | 2014-07-02 | 新奥气化采煤有限公司 | Coal co-gasification method |
| CN106635172A (en) * | 2015-11-04 | 2017-05-10 | 神华集团有限责任公司 | Jet assembly, multi-burner gasifier and feeding system thereof |
| CN110791325A (en) * | 2019-11-06 | 2020-02-14 | 新奥科技发展有限公司 | Feeding method for pulverized coal burner of multi-nozzle slurry gasification furnace |
-
2012
- 2012-11-19 CN CN2012206088370U patent/CN203095998U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897739A (en) * | 2014-04-15 | 2014-07-02 | 新奥气化采煤有限公司 | Coal co-gasification method |
| CN103897739B (en) * | 2014-04-15 | 2015-12-09 | 新奥气化采煤有限公司 | Coal is gasification process altogether |
| CN106635172A (en) * | 2015-11-04 | 2017-05-10 | 神华集团有限责任公司 | Jet assembly, multi-burner gasifier and feeding system thereof |
| CN110791325A (en) * | 2019-11-06 | 2020-02-14 | 新奥科技发展有限公司 | Feeding method for pulverized coal burner of multi-nozzle slurry gasification furnace |
| CN110791325B (en) * | 2019-11-06 | 2021-07-30 | 新奥科技发展有限公司 | Feeding method for pulverized coal burner of multi-nozzle slurry gasification furnace |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20131119 |