CN201581058U - Tar self-separating fixed bed coal-fired gasification furnace - Google Patents
Tar self-separating fixed bed coal-fired gasification furnace Download PDFInfo
- Publication number
- CN201581058U CN201581058U CN2009202538259U CN200920253825U CN201581058U CN 201581058 U CN201581058 U CN 201581058U CN 2009202538259 U CN2009202538259 U CN 2009202538259U CN 200920253825 U CN200920253825 U CN 200920253825U CN 201581058 U CN201581058 U CN 201581058U
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- CN
- China
- Prior art keywords
- chamber
- coal
- fire grate
- heater
- 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
- 238000002309 gasification Methods 0.000 title claims abstract description 26
- 239000003245 coal Substances 0.000 claims abstract description 42
- 238000002485 combustion reaction Methods 0.000 claims abstract description 25
- 238000000197 pyrolysis Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims description 16
- 238000011049 filling Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000009827 uniform distribution Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004821 distillation Methods 0.000 abstract 1
- 239000011269 tar Substances 0.000 description 17
- 238000006722 reduction reaction Methods 0.000 description 14
- 239000000567 combustion gas Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 11
- 238000003860 storage Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000004071 soot Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 239000011280 coal tar Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization 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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Solid-Fuel Combustion (AREA)
Abstract
The utility model relates to coal gasification and tar self-separating coal-fired gasification furnace, which belongs to the technical field of clean coal burning devices. Five functional areas including a burning chamber, a reduction chamber, a distillation chamber, a dry distillation chamber and a cooling filter chamber are sequentially disposed above a fire grate of a furnace body, an outlet of a combustion fan is connected to the upper portion of a preheating jacket of the furnace body, a series of air inlets is arranged on the preheating jacket of the furnace body under the fire grate, a chimney with a by-pass valve is further arranged on the upper portion of the cooling filter chamber of the furnace body, and a coaling opening is arranged on the top of the furnace. The gasification furnace is high in coal gasification efficiency, can automatically filter, separate and recycle tar in outputted gas, saves energy and reduces maintenance load.
Description
Technical field
The utility model relates to a kind of coal gasification and tar self-separation type coal-fired gasification furnace, belongs to the cleaning combustion unit technical field of coal.
Background technology
Four kinds of combustion systems of the general employing of atmospheric fixed bed vapourizing furnace are respectively updraft type, downdraft, side-suction type and hybrid.Wherein, fast owing to utilization ratio height, the gasification rate of updraft type gasification furnace coal, gasification efficiency is high, output combustion gas dust content is low, high obtain everybody consistent of calorific value favored and approved.Regrettably big, the equipment of the coal-tar middle oil content of updraft type vapourizing furnace output combustion gas and transport pipe easily stops up, the line service amount is bigger has seriously restricted the development and the widespread use of updraft type vapourizing furnace.
For many years, each enterprises and institutions and people are that to be devoted to improve the gasification rate of updraft type vapourizing furnace fast, the gasification efficiency height, especially how the tar of effectively eliminating in the output combustion gas has been made unremitting effort, for example, patent 02276230.2 has been announced a kind of vapourizing furnace tar moisture content tripping device, patent 02219573.4 has announced that a kind of fixed-bed gasification furnace of rectangle burner hearth structure is to strengthen gasification efficiency, patent 02224781.5 has announced that the annular steam pipe of a kind of increase carries out dedusting to the output combustion gas, patent 02213480.8 has been announced a kind of by thereby the fixed-bed gasification furnace that thermal insulation layer improves fuel availability is set in burner hearth, patent 02291928.7,90226299.8,200710066099.5 announced a kind of fixed-bed gasification furnace that adopts the water jacket furnace wall, patent 01230718.1,200720104873.2 announced a kind of fixed-bed gasification furnace of getting gas from reducing zone.
Practice shows, above-mentioned improved procedure makes the vapourizing furnace locality to improve, but owing to have cold filtration chamber and furnace height not unreasonable, thereby problem such as tar still thoroughly improved, and the tar problem of especially exporting in the combustion gas still is everybody first-class problem of puzzlement.
How to solve or eliminate the problem that the tar in the output combustion gas becomes the coal gasification technical development and extensively moves towards daily production, lives and must at first solve.
Summary of the invention
The utility model provides a kind of tar self-separation formula fixed bed coal-fired gasification furnace, coal gasification efficient height, but the tar in automatic filtration, separation, the recycling output combustion gas, and save energy reduces maintenance workload.
The realization the technical solution of the utility model is: from setting gradually combustion chamber, reduction chamber, stilling chamber, five functional zone in destructive distillation chamber and cold filtration chamber more than the fire grate of body of heater; The outlet of burner blower inserts the top of the pre-thermal jacket of body of heater; The pre-thermal jacket of body of heater is provided with a series of air inlet ports at fire grate with upper/lower positions, also is provided with the chimney of band by-pass valve on the top, cold filtration chamber of body of heater, and coal filling hole is located at furnace roof.
The technical solution of the utility model also comprises:
The scraper plate coal distributing device of band rocking handle is housed in the position, reduction chamber of body of heater, and fire grate also has rocking handle; The body of heater coal filling hole is provided with the annular seal-water tank with top cover edge coupling; The outlet of burner blower is connected to the position of the corresponding cold filtration of the pre-thermal jacket of body of heater chamber by collector box; Be provided with clean-out door near the furnace wall above the fire grate, the air inlet port of fire grate below is uniform distribution circlewise.
The above spatial altitude of vapourizing furnace fire grate is more than or equal to 2.5 times of fire grate position diameter.
At first heat and the interchanger that utilizes combustion chamber, reduction chamber outer wall to produce to the combustion air of sending into vapourizing furnace carries out efficient preheating; ash storage room adopts annular, multiple spot air intake mode to send into the combustion chamber below fire grate then; cooling on the one hand, protection are in pyritous combustion chamber, reduction chamber for a long time; it is not damaged; also further improve simultaneously combustion chamber, reduction chambers temp and homogeneity, thereby improve burning of coal rate, vaporization rate and gasification rate.
The reduction chamber enters the cold filtration chamber after the inflammable gas that body of heater produces upwards passes through stilling chamber, destructive distillation chamber successively, because this chamber height is higher, a large amount of heats are absorbed by this coal seam, chamber and temperature progressively reduces in the combustion gas crossing process, along with continuous rising, the temperature of inflammable gas constantly reduces, wherein contained tar, moisture begin to become liquid state and are condensed in the coal cinder surface.Along with the coal seam in combustion chamber, the reduction chamber descends, the coal in the cold filtration chamber also progressively descends, and makes that the tar, the moisture content that are attached to the coal cinder surface are finally decomposed at zone of combustion, has realized the purpose to the tar self-separation.
The principle that realizes technique scheme is such:
1) coal burns in the combustion chamber:
C+O
2=CO
2+ heat (combustion chamber)
2) under the effect of the heat that produces in the combustion chamber, the coal seam of reduction chamber begins to take place reduction reaction and generates inflammable gas:
CO
2+ C+ heat=2CO
1(reduction chamber)
3) inflammable gas, the heat of the generation of reduction chamber upwards pass through stilling chamber, destructive distillation floor chamber successively, and the part heat is absorbed preheating by the coal seam on the one hand, produces a large amount of water vapour and tar simultaneously.
4) tar, water vapour, the heat in stilling chamber, the destructive distillation floor chamber continues to move upward and passes through coal seam in the cold filtration chamber, the inflammable gas temperature sharply reduces, tar, water vapour become liquid state and are attached to surface, coal seam, cold filtration chamber, and final inflammable gas is from the clean output of gas outlet.
The beneficial effects of the utility model are: can make fire coal obtain high-efficiency gasification, tar in the output combustion gas obtains automatic filtration, separation, recycling, compare with traditional vapourizing furnace, can further realize energy-conservation more than 25%, the coal-tar middle oil content of output combustion gas reduces more than 95%, when the cleaningization operation is achieved, and the line service amount reduces more than 90%.Reasonably furnace height can obtain different functional areas, makes the combustion gas of output not have tar substantially.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Each label is represented successively among the figure: coal filling hole 1; Gas outlet 2; Annular seal-water tank 3; Cold filtration chamber 4; Collector box 5; Burner blower 6; Destructive distillation chamber 7; Urceolus 8; Inner core 9; Stilling chamber 10; Scraper plate coal distributing device 11; Coal distributing device rocking handle 12; Reduction chamber 13; Pre-thermal jacket 14; Arc refractory brick 15; Combustion chamber 16; Clean-out door 17; Fire grate 18; Fire grate rocking handle 19; Air inlet port 20; Ash storage room 21; Soot door 22; Furnace bottom 23; Stove pin 24; Chimney 25.
Embodiment
Referring to Fig. 1, the vapourizing furnace of this device is from the bottom up by stove pin 24, furnace bottom 23, soot door 22, clean-out door 17, inner core 9, urceolus 8, pre-thermal jacket 14, chimney 25, coal filling hole 1, annular seal-water tank 3 is formed, wherein, fire grate sets gradually combustion chamber 16 more than 19, reduction chamber 13, stilling chamber 10,4 five functional zone in destructive distillation chamber 7 and cold filtration chamber, pre-thermal jacket 14 in ash storage room 21 evenly circularizes shape distribution air inlet port 20, manual fire grate 18 has fire grate rocking handle 19, be lined with the arc refractory brick 15 contour in the combustion chamber 16 with it, at the position at reduction 13 middle parts, chamber dress scraper plate coal distributing device 11, scraper plate coal distributing device 11 has the coal distributing device rocking handle 12 that extends in outside the stove.The outlet of burner blower 6 is connected to the position of the pre-thermal jacket of body of heater corresponding cold filtration chambers 4 14 by collector box 5.
The utility model working process is such:
Open the chimney 25 of band by-pass valve, soot door 22 and clean-out door 17 also add auxiliary fluid ignition, add subsequently and start coal, start burner blower 6, combustion air at first enters collector box 5 and enters the pre-thermal jacket 14 of ignition dope subsequently, combustion air continues operation downwards and enters ash storage room 21 through the air inlet port 20 of annular spread after preheating, under the blast effect, combustion air enters combustion chamber 16 after passing through manual fire grate 18, close soot door 22 and clean-out door 17 successively after waiting to start coal combustion, open the coal filling hole 1 of furnace roof and begin coal to coal filling hole 1 height, after about 15 minutes, close coal filling hole 1 and water filling sealing in annular seal-water tank 3, close the by-pass valve of chimney 25, inflammable gas is from gas outlet 2 outputs, can normally use.
In the use, fall into ash storage room 21 and keep combustion air smooth and easy combustion-supporting for guaranteeing combustion chamber collection ash, can shake fire grate rocking handle 19 once in two hours at interval, this moment, manually fire grate 18 rotated thereupon, and the collection ash falls automatically.Built on stilts for preventing the coal seam, can shake coal distributing device rocking handle 12 once in three hours at interval, scraper plate coal distributing device 11 begins to rotate and every layer of downward landing of beginning under its effect at this moment.
After use finishing, at first close the use terminal, open successively then chimney 25 by-pass valve, close burner blower 6 and enter the smouldering fire dormant state.
Claims (3)
1. a tar self-separation formula fixed bed coal-fired gasification furnace is characterized in that: from setting gradually combustion chamber, reduction chamber, stilling chamber, five functional zone in destructive distillation chamber and cold filtration chamber more than the fire grate of body of heater; The outlet of burner blower inserts the top of the pre-thermal jacket of body of heater; The pre-thermal jacket of body of heater is provided with a series of air inlet ports at fire grate with upper/lower positions, also is provided with the chimney of band by-pass valve on the top, cold filtration chamber of body of heater, and coal filling hole is located at furnace roof.
2. tar self-separation formula fixed bed coal-fired gasification furnace according to claim 1 is characterized in that: the scraper plate coal distributing device of band rocking handle is housed in the position, reduction chamber of body of heater, and fire grate also has rocking handle; The body of heater coal filling hole is provided with the annular seal-water tank with top cover edge coupling; The outlet of burner blower is connected to the position of the corresponding cold filtration of the pre-thermal jacket of body of heater chamber by collector box; Be provided with clean-out door near the furnace wall above the fire grate, the air inlet port of fire grate below is uniform distribution circlewise.
3. tar self-separation formula fixed bed coal-fired gasification furnace according to claim 1, it is characterized in that: the above spatial altitude of vapourizing furnace fire grate is more than or equal to 2.5 times of fire grate position diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202538259U CN201581058U (en) | 2009-12-04 | 2009-12-04 | Tar self-separating fixed bed coal-fired gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202538259U CN201581058U (en) | 2009-12-04 | 2009-12-04 | Tar self-separating fixed bed coal-fired gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201581058U true CN201581058U (en) | 2010-09-15 |
Family
ID=42723055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202538259U Expired - Lifetime CN201581058U (en) | 2009-12-04 | 2009-12-04 | Tar self-separating fixed bed coal-fired gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201581058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485665A (en) * | 2015-12-31 | 2016-04-13 | 广西节得乐生物质能源科技有限公司 | Biomass particle gasification burner |
-
2009
- 2009-12-04 CN CN2009202538259U patent/CN201581058U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485665A (en) * | 2015-12-31 | 2016-04-13 | 广西节得乐生物质能源科技有限公司 | Biomass particle gasification burner |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Ye Juan Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
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| CX01 | Expiry of patent term |
Granted publication date: 20100915 |
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