CN203559031U - Waste pot device of entrained-flow bed gasification furnace - Google Patents
Waste pot device of entrained-flow bed gasification furnace Download PDFInfo
- Publication number
- CN203559031U CN203559031U CN201320708028.1U CN201320708028U CN203559031U CN 203559031 U CN203559031 U CN 203559031U CN 201320708028 U CN201320708028 U CN 201320708028U CN 203559031 U CN203559031 U CN 203559031U
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- CN
- China
- Prior art keywords
- pot
- waste pot
- radiation waste
- slag
- gasification furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 54
- 238000002309 gasification Methods 0.000 title claims abstract description 27
- 230000005855 radiation Effects 0.000 claims abstract description 50
- 239000002893 slag Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000010791 quenching Methods 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 8
- 239000002956 ash Substances 0.000 claims description 5
- 239000003818 cinder Substances 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000013459 approach Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 abstract 1
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 12
- 239000003034 coal gas Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000002918 waste heat Substances 0.000 description 4
- 229910052728 basic metal Inorganic materials 0.000 description 3
- 150000003818 basic metals Chemical class 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
The utility model relates to a waste pot device of an entrained-flow bed gasification furnace. The waste pot device comprises a gasification furnace, a radiation waste pot and a convection waste pot, and is characterized in that the radiation waste pot is arranged below the gasification furnace, a slag falling pipe is arranged at the middle of the top of the gasification furnace along the axial direction, an upper pipe opening of the slag falling pipe is communicated with the bottom of the gasification furnace, a lower pipe opening of the slag falling pipe is communicated with the radiation waste pot, a water cooling wall is arranged on the inner wall of the radiation waste pot along the circumferential direction, a plurality of chilling nozzles are uniformly arranged on the radiation waste pot at the lower end of the water cooling wall along the circumferential direction, a slag basin filled with cooling water is arranged at the bottom of the radiation waste pot, a slag discharging hole is formed in the bottom of the slag basin, and a gas outlet is formed in the side surface of the lower part of the radiation waste pot positioned above the liquid level of the slag basin, and is communicated with a gas inlet of the convection waste pot. According to the waste pot device, the problem of an existing industrial device is solved by means of a new approach, the industrialization of a waste pot is realized, the efficiency of gasifying heating gas can be increased by 10-15 percent, and thus the defect of an existing gasification technology is made up, and the functions of saving energy and reducing emission are well reflected.
Description
Technical field
The utility model relates to a kind of steam generating plant, is specifically related to a kind of useless Pot devices of airflow bed gasification furnace of heat recuperation that hot coal gas after existing entrained flow gasification and high-temperature slag waste heat are undertaken by radiation and two kinds of thermal conduction forms of convection current.
Background technology
At present, both at home and abroad entrained flow bed gasification technology is many, Coal Chemical Industry application more be the technology such as Texaco, polynary slurry, multi-nozzle, Tsing-Hua University's stove, siemens's vapourizing furnace, space flight stove, shell vapourizing furnace.These technology common features are that the generating gasification reaction in vapourizing furnace of coal, oxygen and water vapour generates about 1400 degree left and right coal gas of high temperature and molten state waste residues, and the direct water Quench of coal gas of high temperature is cooled to 250 degree left and right and enters next procedure.In this coal gasification course, the heat that coal gas of high temperature and high-temperature slag carry does not fully reclaim, and the sensible heat in coal gas of high temperature has been wasted, and this part heat accounts for greatly coal thermo-efficiency 15% left and right, thereby causes gasification efficiency low.
Although radiation waste pot has been installed after vapourizing furnace by indivedual producers of gasifying both at home and abroad, takes segmentation to reclaim heat way.But owing to existing certain defect to cause radiation waste boiler often to occur stifled slag in flow process and waste heat boiler design, gasification reaction cannot go on, and causes air flow bed to join waste heat boiler flow process technology and is difficult to promote.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide the useless Pot devices of a kind of airflow bed gasification furnace, to overcome the drawback that in prior art, heating gas waste heat does not reclaim.
For achieving the above object, the utility model is taked following technical scheme: a kind of airflow bed gasification furnace Pot devices that gives up, it comprises the useless pot of vapourizing furnace, radiation waste pot and convection current, it is characterized in that, described radiation waste pot is arranged on the below of described vapourizing furnace, its crown center position is provided with a slag downtake vertically, and the upper orifice of described slag downtake is connected with the bottom of described vapourizing furnace, and lower nozzle is connected with described radiation waste pot; On described radiation waste pot inwall, along being circumferentially provided with a water wall, on the described radiation waste pot of described water wall lower end, edge is circumferentially evenly laid with several Quench shower nozzles; The bottom of described radiation waste pot is the slag bath that water coolant is housed, and in described slag bath bottom, is provided with cinder notch; In the described radiation waste pot lower side being positioned at above described slag bath liquid level, be provided with an air outlet, described air outlet is connected with the inlet mouth of the useless pot of described convection current.
In a preferred embodiment, between the air outlet of described radiation waste pot and the inlet mouth of the useless pot of described convection current, be also provided with a cyclonic separator.
In a preferred embodiment, in the useless pot of described convection current, be provided with heat transfer tube, and the outlet of the useless pot of described convection current is connected with a fly-ash separator.
In a preferred embodiment, the water wall in described radiation waste pot is all connected with outside drum with the heat transfer tube in the useless pot of described convection current.
In a preferred embodiment, the bottom of the useless pot of described convection current and cyclonic separator is provided with ash discharging hole.
The utility model is owing to taking above technical scheme, it has the following advantages: 1, the utility model is set directly at radiation waste pot the below of vapourizing furnace, and be communicated with vapourizing furnace and radiation waste pot by slag downtake, like this by the internal structure of transformation radiation waste pot, change original two channels heat exchange into single passage heat exchange, thereby make device structure simpler, facility investment significantly reduces, processing and maintenance facilities are simple in structure, reduced investment, easy to operate, solved the problems such as the stifled slag of radiation waste pot, radiation waste pot can better be applied on full scale plant.2, the utility model is circumferentially evenly laid with several Quench shower nozzles on the edge, middle and lower part of radiation waste pot, by spraying water to radiation waste pot middle and lower part, cause slag, basic metal and coal gas fast cooling, by controlling temperature of exit gas, just can control basic metal and residual sprue blocking channel problem completely, thereby guaranteed the long-term stability operation of useless Pot devices in gasification, for Coal Chemical Industry, produced and lay a good foundation.In sum, the utility model has solved current full scale plant problem by new approach, has realized the industrialization of useless pot, can improve heat of gasification coal gas efficiency 10～15%, not only make up the deficiency existing in existing gasification technology, and better embodied energy-saving and emission-reduction.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is carried out to detailed describing.Yet only providing in order to understand better the utility model of accompanying drawing is provided, they not should be appreciated that paired restriction of the present utility model.
Fig. 1 is one-piece construction schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, the useless Pot devices of airflow bed gasification furnace of the present utility model is mainly comprised of the useless pot 3 of vapourizing furnace 1, radiation waste pot 2 and convection current.Wherein, the top of vapourizing furnace 1 is provided with several and is used for the burner 4 of injection water coal slurry, and bottom has conical outlet.Radiation waste pot 2 is arranged on the below of vapourizing furnace 1, and its crown center position is provided with a slag downtake 5 vertically, and the upper orifice of this slag downtake 5 is connected with the conical outlet of vapourizing furnace 1, and lower nozzle is connected with radiation waste pot 2.On radiation waste pot 2 inwalls, along being circumferentially provided with one, be used for protecting the cylindrical shell of radiation waste pot 2 to avoid the water wall 6 of hyperthermia radiation, on the radiation waste pot 2 of water wall 6 lower ends along being circumferentially evenly laid with several Quench shower nozzles 7.The bottom of radiation waste pot 2 is the slag bath 8 that water coolant is housed, and in slag bath 8 bottoms, is provided with cinder notch 9.In radiation waste pot 2 lower side that are positioned at above slag bath 8 liquid levels, be provided with an air outlet 10, this air outlet 10 is connected by the inlet mouth at a cyclonic separator 11 and the useless pot of convection current 3 tops.In the useless pot 3 of convection current, be provided with heat transfer tube 12, the outlet of the useless pot of convection current 3 lower side is connected with fly-ash separator 13.
In a preferred embodiment, the equal drum outside with being arranged on it (not shown) that is connected of the heat transfer tube 12 in the useless pot 3 of the water wall 6 in radiation waste pot 2 and convection current.
In a preferred embodiment, the bottom of the useless pot 3 of convection current and cyclonic separator 11 is provided with ash discharging hole 14.
The useless Pot devices of airflow bed gasification furnace of the present utility model comprises following flow process when work:
1) due to gravity and differential pressure action, hot coal gas and high-temperature slag flow into radiation waste pot 2 from vapourizing furnace 1 is interior along slag downtake 5, in hot coal gas and slag decline process, heat carries out heat exchange by thermal radiation form and water wall 6, change then coal gas and slag because loses heat is lowered the temperature, most of slag becomes the solid-state slag bath 8 that falls into because temperature reduces by liquid state, and heating gas is finally flowed out by the air outlet 10 of radiation waste pot 2 lower side from top to bottom.
2) when heating gas and slag drop to Quench shower nozzle 7 place, it is carried out to spray cooling to safety temperature, because water after water spray need gasify, to absorb heat and cause the slag that also do not solidify completely and basic metal reduces heat and thoroughly solidify, guarantee slag and alkali-metal solidifying critical days, stopped follow-up equipment to stop up.
3) slag directly falls into the further thorough Quench of water coolant of slag bath 8 after radiation cooling and cold shock cooling, and the slag after supercooled water Quench is discharged by the lower cinder notch 9 of slag bath 8 bottoms after precipitation.
4) heating gas after radiation waste pot 2 cooling enters cyclonic separator 11 and carries out preliminary macrobead dedusting, and the dust separating is discharged by the ash discharging hole 14 of cyclonic separator 11 bottoms.
5) heating gas finally carries out heat exchange by the cold medium in the heat transfer tube 12 of convection type and the useless pot 3 of convection current, further reduce heating gas temperature, after heating gas sensible heat is further reclaimed, enter fly-ash separator 13 to remove the thin ash in coal gas, then enter next process.
6) water wall 6 and heat transfer tube 12 pass to drum by the heat of heat exchange respectively, can be used for making steam or use steam-electric power.
The various embodiments described above are only for illustrating the utility model; wherein the structure of each parts, mode of connection etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
Claims (5)
1. the useless Pot devices of an airflow bed gasification furnace, it comprises the useless pot of vapourizing furnace, radiation waste pot and convection current, it is characterized in that, described radiation waste pot is arranged on the below of described vapourizing furnace, its crown center position is provided with a slag downtake vertically, the upper orifice of described slag downtake is connected with the bottom of described vapourizing furnace, and lower nozzle is connected with described radiation waste pot; On described radiation waste pot inwall, along being circumferentially provided with a water wall, on the described radiation waste pot of described water wall lower end, edge is circumferentially evenly laid with several Quench shower nozzles; The bottom of described radiation waste pot is the slag bath that water coolant is housed, and in described slag bath bottom, is provided with cinder notch; In the described radiation waste pot lower side being positioned at above described slag bath liquid level, be provided with an air outlet, described air outlet is connected with the inlet mouth of the useless pot of described convection current.
2. the useless Pot devices of airflow bed gasification furnace as claimed in claim 1, is characterized in that, between the air outlet of described radiation waste pot and the inlet mouth of the useless pot of described convection current, is also provided with a cyclonic separator.
3. the useless Pot devices of airflow bed gasification furnace as claimed in claim 1 or 2, is characterized in that, be provided with heat transfer tube, and the outlet of the useless pot of described convection current is connected in the useless pot of described convection current with a fly-ash separator.
4. the useless Pot devices of airflow bed gasification furnace as claimed in claim 3, is characterized in that, the water wall in described radiation waste pot is all connected with outside drum with the heat transfer tube in the useless pot of described convection current.
5. the useless Pot devices of airflow bed gasification furnace as claimed in claim 1 or 2 or 3 or 4, is characterized in that, the bottom of the useless pot of described convection current and cyclonic separator is provided with ash discharging hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320708028.1U CN203559031U (en) | 2013-11-11 | 2013-11-11 | Waste pot device of entrained-flow bed gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320708028.1U CN203559031U (en) | 2013-11-11 | 2013-11-11 | Waste pot device of entrained-flow bed gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559031U true CN203559031U (en) | 2014-04-23 |
Family
ID=50508763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320708028.1U Expired - Lifetime CN203559031U (en) | 2013-11-11 | 2013-11-11 | Waste pot device of entrained-flow bed gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559031U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666583A (en) * | 2013-11-11 | 2014-03-26 | 煤炭科学研究总院 | Waste heat boiler device of entrained bed gasifier |
| CN104611064A (en) * | 2015-02-11 | 2015-05-13 | 中国神华能源股份有限公司 | Gasifying device for gas in coal industry |
| CN107267220A (en) * | 2017-07-24 | 2017-10-20 | 中石化宁波工程有限公司 | A kind of coal gasification high level heat recovery system |
| CN109628149A (en) * | 2019-01-22 | 2019-04-16 | 鲁南煤化工研究院 | A kind of gasification system |
-
2013
- 2013-11-11 CN CN201320708028.1U patent/CN203559031U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666583A (en) * | 2013-11-11 | 2014-03-26 | 煤炭科学研究总院 | Waste heat boiler device of entrained bed gasifier |
| CN104611064A (en) * | 2015-02-11 | 2015-05-13 | 中国神华能源股份有限公司 | Gasifying device for gas in coal industry |
| CN107267220A (en) * | 2017-07-24 | 2017-10-20 | 中石化宁波工程有限公司 | A kind of coal gasification high level heat recovery system |
| CN109628149A (en) * | 2019-01-22 | 2019-04-16 | 鲁南煤化工研究院 | A kind of gasification system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA COAL RESEARCH INSTITUTE CO., LTD. Free format text: FORMER OWNER: COAL GENERAL ACADEMY Effective date: 20140826 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140826 Address after: 100013 Chaoyang District, Hepingli Youth Ditch Road, No. 5, No. Patentee after: CCTEG CHINA COAL Research Institute Address before: 100013 Chaoyang District, Hepingli Youth Ditch Road, No. 5, No. Patentee before: CHINA COAL Research Institute |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170116 Address after: Beijing Caiyu Economic Development Zone 102606 Beijing city Daxing District Long Yu Caiyu Town Street No. 5 Patentee after: CHINA COAL RESEARCH INSTITUTE (CCRI) ENERGY SAVING TECHNOLOGY CO.,LTD. Address before: 100013 Chaoyang District, Hepingli Youth Ditch Road, No. 5, No. Patentee before: CCTEG CHINA COAL Research Institute |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee after: Beijing Tiandi Sunac Technology Co.,Ltd. Address before: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee before: CHINA COAL RESEARCH INSTITUTE (CCRI) ENERGY SAVING TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |