CN206428192U - Fine coal fast pyrogenation and char Gasification combined unit - Google Patents
Fine coal fast pyrogenation and char Gasification combined unit Download PDFInfo
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- CN206428192U CN206428192U CN201621087143.1U CN201621087143U CN206428192U CN 206428192 U CN206428192 U CN 206428192U CN 201621087143 U CN201621087143 U CN 201621087143U CN 206428192 U CN206428192 U CN 206428192U
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- China
- Prior art keywords
- fine coal
- semicoke
- reactor
- char gasification
- surge bunker
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Abstract
The utility model is related to a kind of fine coal fast pyrogenation and char Gasification combined unit, belong to pulverized coal pyrolysis technical field, run simultaneously there is provided a kind of pulverized coal pyrolysis and char Gasification, the thermal efficiency is high, equipment investment is few, run the fine coal fast pyrogenation and char Gasification combined unit of safety and steady, the technical scheme used is connected for fine coal surge bunker with fine coal fast pyrolysis reactor, fine coal fast pyrolysis reactor is connected with char Gasification reactor, fine coal fast pyrolysis reactor is connected with semicoke surge bunker, semicoke surge bunker is connected with char Gasification reactor, control valve is provided with semicoke delivery pipe, the pyrolysis coal gas of generation carries out separation dedusting；The dust separated enters ash can；The semicoke dust separated, which enters on semicoke surge bunker, char Gasification reactor, is provided with gasifying agent air inlet pipe, and the bottom of char Gasification reactor is provided with grey slag ladle, and the slag notch of grey slag ladle is provided with lag cooler;The utility model is widely used in pulverized coal pyrolysis.
Description
Technical field
The utility model is related to a kind of fine coal fast pyrogenation and char Gasification combined unit, belongs to pulverized coal pyrolysis technology neck
Domain.
Background technology
The characteristics of China's energy resource structure is " rich coal, oil-poor, few gas ", and coal will be China within a period from now on
Main energy sources.The economic development needs New Coal Chemical Industry in west area is supported.
The particle diameter for producing 40% is less than to 10mm fine coal, this part coal mesh during coal mining and following process
It is preceding to be used mainly as fuel.Due to not extracted from coal as the particularly useful chemical constituent such as phenol, naphthalene and coal tar
Directly as fuel combustion, actually this is a kind of waste of the energy.
At present, serious haze and environmental protection requirement, which are also required to New Coal Chemical Industry, can realize the comprehensive profit of fine coal
With.In terms of coal pyrolysis, with block coal pyrolytic technique（Such as coking）It is ripe and be used widely.But low cost,
Among environment-friendly pulverized coal pyrolysis technology is being researched and developed, such as：The U.S. exploitation COED techniques, TOSCOAL techniques,
Garrett semicoke solid thermal carriers techniques, the ETCH-175 techniques of former Soviet Union's exploitation, the fast pyrolysis process of Japan's exploitation, Australia
CSIR's O fast pyrolysis process of big Leah exploitation；The DG techniques of Dalian University of Technology of China exploitation, China Coal Research Institute are opened
KH techniques and realize industrialized Xi'an that the MRF techniques of hair, Xinjiang Kingho Group Hefeng Energy and Chemical Co., Ltd. develop
The external-heating revolving furnace technology of three auspicious Industrial Co., Ltd.'s exploitations, the revolving bed pyrolysis work of Henan Longcheng Group Co., Ltd's exploitation
Skill.In terms of coal gasification, ripe technology has fluidized gasification, entrained flow gasification, molten bath gasifica tion and coal water slurry gasification work
Skill.
The fast pyrogenation of coal refers to the rate of heat addition 100~105DEG C/s, quick heating pyrolysis be in coal organic matter into
Divide maximally effective utilization ways, 50% is had more than the volatile materials obtained by slow heat pyrolysis, and coal tar light component is more.
It is a problem of current coal chemical technology but how the semicoke generated in the pyrolysis of fine coal and pyrolytic process utilizes.
Utility model content
To solve the technical problem that prior art is present, the utility model provides a kind of pulverized coal pyrolysis and char Gasification is same
Step operation, the thermal efficiency is high, equipment investment is few, runs the fine coal fast pyrogenation and char Gasification combined unit of safety and steady.
To achieve the above object, the technical scheme that the utility model is used is combined for fine coal fast pyrogenation with char Gasification
Device, including fine coal surge bunker and fine coal fast pyrolysis reactor, the bottom discharge mouthful of the fine coal surge bunker are added by fine coal
Material mechanism is connected with the bottom of fine coal fast pyrolysis reactor, and the bottom of the fine coal fast pyrolysis reactor passes through riser
It is connected with the top of char Gasification reactor, bottom scum pipe and the semicoke surge bunker phase of the fine coal fast pyrolysis reactor
Connection, the bottom of the semicoke surge bunker is connected by semicoke delivery pipe with char Gasification reactor, the semicoke delivery pipe
On be provided with control valve, the pyrolysis coal gas that the fine coal fast pyrolysis reactor is produced carries out separation by multiple-stage separator and removed
Dirt；The dust separated enters ash can；The semicoke dust separated enters semicoke surge bunker, the char Gasification reactor
Fire grate on be provided with gasifying agent air inlet pipe, the bottom slag notch of the char Gasification reactor is provided with grey slag ladle, the ash
The slag notch of slag ladle is provided with lag cooler.
It is preferred that, the multiple-stage separator includes primary cyclone, the secondary cyclone and three being sequentially connected
Level cyclone separator, the bottom discharge mouthful of the primary cyclone and secondary cyclone delays by tremie pipe with semicoke
Rush storehouse to be connected, the bottom discharge mouthful of the three-stage cyclone separator is connected with ash can.
It is preferred that, the fine coal fast pyrolysis reactor is main by bottom breeze way, erect riser and top cushion section structure
Into, it is provided with the bottom breeze way on gasification gas air inlet pipe and scum pipe, the erect riser and is provided with feed pipe, institute
State in fine coal fast pyrolysis reactor and be provided with erosion-resistant refractory lining.
Compared with prior art, the utility model has following technique effect：The utility model be using air-flow bed technique as
Basis, creates a kind of fine coal fast pyrogenation and char Gasification cooperation, the technique is with fine coal air flow bed fast pyrolysis reactor
For core, with reference to semicoke fluidized bed gasifying process, the gasification of the fast pyrogenation and semicoke of fine coal is synchronously realized, is efficiently solved
The problems such as existing process process units is difficult amplification, heat transfer efficiency is low, equipment material requirement is high, flow is complicated, and with heat transfer
Mass-transfer efficiency is high, equipment choice requirement is low, technological process is short, equipment is few and simple, production operation is flexible, security reliability is high etc.
Advantage.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of fine coal fast pyrolysis reactor of the present utility model shown in Fig. 1.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the utility model is further elaborated.It should be appreciated that specific reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
As shown in figure 1, fine coal fast pyrogenation and char Gasification combined unit, including fine coal surge bunker 1 and the fast speed heat of fine coal
Reactor 2 is solved, the bottom discharge mouthful of fine coal surge bunker 1 passes through the bottom of fine coal charging mechanism 3 and fine coal fast pyrolysis reactor 2
It is connected, the bottom of fine coal fast pyrolysis reactor 2 is connected by riser 4 with the top of char Gasification reactor 5, fine coal
The bottom scum pipe of fast pyrolysis reactor 2 is connected with semicoke surge bunker 7, and the bottom of semicoke surge bunker 7 is conveyed by semicoke
Pipe 22 is connected with char Gasification reactor 5, and control valve 8 is provided with semicoke delivery pipe 22, and fine coal fast pyrolysis reactor 2 is produced
Raw pyrolysis coal gas carries out separation dedusting by multiple-stage separator；The dust separated enters ash can 6；The semicoke separated
Dust, which enters on semicoke surge bunker 7, the fire grate of char Gasification reactor 5, is provided with gasifying agent air inlet pipe 9, char Gasification reactor
5 bottom slag notch is provided with grey slag ladle 10, and the slag notch of grey slag ladle 10 is provided with lag cooler 11.
Wherein, multiple-stage separator includes primary cyclone 12, secondary cyclone 13 and the three-level being sequentially connected
The bottom discharge mouthful of cyclone separator 14, primary cyclone 12 and secondary cyclone 13 passes through tremie pipe 15 and semicoke
Surge bunker 7 is connected, and the bottom discharge mouthful of three-stage cyclone separator 14 is connected with ash can 6.
Fig. 2 is the structural representation of fine coal fast pyrolysis reactor of the present utility model shown in Fig. 1, and fine coal fast pyrogenation is anti-
Answer device 2 main and be made up of bottom breeze way 16, erect riser 17 and top cushion section 18, gasification is provided with bottom breeze way 16
It is provided with feed pipe 21, fine coal fast pyrolysis reactor 2 and is provided with gas inlet pipe 19 and scum pipe 20, erect riser 17
Erosion-resistant refractory lining.
When in use, coal is broken into the fine coal that particle diameter is less than 10mm, moisture is reduced to less than 2% through drying and dehydrating,
Subsequently into raw material surge bunker, fine coal fast pyrolysis reactor is being added to by fine coal charger；Char Gasification reactor
Gasification gas enter the bottom breeze way of fine coal fast pyrolysis reactor by the riser of char Gasification reactor head, then
It is upwardly into fine coal fast pyrolysis reactor, fine coal is broken up rapidly, fluidized and forms air flow bed by gasification gas；Fine coal is in gas
Change quick movement upwards in the presence of coal gas air-flow, fine coal and gasification gas carry out mass-and heat-transfer and realized fast in moving process
Speed heat solution, when being pyrolyzed, 450~500 DEG C of pyrolysis temperature, synthesis pressure 0.70MPa~1.0MPa, pyrolysis time 5~
The air stream of reactor hastens as 20~50m/s in 10s, pyrolytic process；The bulky grain semicoke that pyrolysis is produced is carried by air-flow
Rise after a segment distance, move down fall into semicoke surge bunker under gravity.Little particle semicoke carries to enter successively by air-flow
Enter primary cyclone, secondary cyclone and three-stage cyclone separator and carry out dedusting, dust concentration is converted into after dedusting
Less than 200mg/m3, maximum particle diameter be less than 20um clean pyrolysis coal gas；Primary cyclone and secondary cyclone are returned
The little particle semicoke of receipts is entered in semicoke surge bunker by the bottom tremie pipe of primary cyclone and secondary cyclone.
The high-temperature gasification that gasification reaction generates 950~1050 DEG C occurs in the presence of gasifying agent for the hot semicoke for entering char Gasification device
Coal gas, high-temperature gasification coal gas enters the gasification gas air inlet pipe of fine coal fast pyrolysis reactor, so circulation, half by riser
The lime-ash produced during coke gasification is discharged into grey slag ladle from char Gasification device bottom, discharge system after being cooled down through lag cooler.Wherein,
Gasifying agent is mainly oxygen and steam, when char Gasification device carries out gasification reaction, 950~1050 DEG C of char Gasification temperature, gasification
Pressure 0.70MPa~1.0MPa.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., all should be wrapped in the utility model model
In enclosing.
Claims (3)
1. fine coal fast pyrogenation and char Gasification combined unit, it is characterised in that：Including fine coal surge bunker and fine coal fast pyrogenation
Reactor, the bottom discharge mouth of the fine coal surge bunker passes through the bottom phase of fine coal charging mechanism and fine coal fast pyrolysis reactor
Connection, the bottom of the fine coal fast pyrolysis reactor by riser with being connected at the top of char Gasification reactor, it is described
The bottom scum pipe of fine coal fast pyrolysis reactor is connected with semicoke surge bunker, and the bottom of the semicoke surge bunker passes through semicoke
Delivery pipe is connected with char Gasification reactor, and control valve is provided with the semicoke delivery pipe, and the fine coal fast pyrogenation is anti-
The pyrolysis coal gas that device is produced is answered to carry out separation dedusting by multiple-stage separator；The dust separated enters ash can；Separate
Semicoke dust enter semicoke surge bunker, gasifying agent air inlet pipe, described half are provided with the fire grate of the char Gasification reactor
The bottom slag notch of coke gasification reactor is provided with grey slag ladle, and the slag notch of the grey slag ladle is provided with lag cooler.
2. fine coal fast pyrogenation according to claim 1 and char Gasification combined unit, it is characterised in that：Many fractions
Primary cyclone, secondary cyclone and the three-stage cyclone separator for including being sequentially connected from device, the one cyclonic
The bottom discharge mouthful of separator and secondary cyclone is connected by tremie pipe with semicoke surge bunker, the three-level whirlwind point
Bottom discharge mouthful from device is connected with ash can.
3. fine coal fast pyrogenation according to claim 1 or 2 and char Gasification combined unit, it is characterised in that：The powder
Coal fast pyrolysis reactor is main to be made up of bottom breeze way, erect riser and top cushion section, is set on the bottom breeze way
It is equipped with gasification gas air inlet pipe and scum pipe, the erect riser and is provided with feed pipe, the fine coal fast pyrolysis reactor
Inside it is provided with erosion-resistant refractory lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621087143.1U CN206428192U (en) | 2016-09-28 | 2016-09-28 | Fine coal fast pyrogenation and char Gasification combined unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621087143.1U CN206428192U (en) | 2016-09-28 | 2016-09-28 | Fine coal fast pyrogenation and char Gasification combined unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206428192U true CN206428192U (en) | 2017-08-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621087143.1U Expired - Fee Related CN206428192U (en) | 2016-09-28 | 2016-09-28 | Fine coal fast pyrogenation and char Gasification combined unit |
Country Status (1)
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| CN (1) | CN206428192U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108893130A (en) * | 2018-08-17 | 2018-11-27 | 中石化（洛阳）科技有限公司 | A kind of fine coal destructive distillation device and fine coal method for destructive distillation |
-
2016
- 2016-09-28 CN CN201621087143.1U patent/CN206428192U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108893130A (en) * | 2018-08-17 | 2018-11-27 | 中石化（洛阳）科技有限公司 | A kind of fine coal destructive distillation device and fine coal method for destructive distillation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190131 Address after: 030006 No. 1, 1st floor, No. 2 Shop, Haitang One, Jinyang Street, Xiaodian District, Taiyuan City, Shanxi Province Patentee after: Shanxi flight de Feng Technology Co., Ltd. Address before: Room 501, No. 18, Steam Trade Road, Xiaodian High-tech Zone Patentee before: SHANXI XINTANG ENGINEERING DESIGN CO., LTD. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20190928 |
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| CF01 | Termination of patent right due to non-payment of annual fee |