CN101735838A - Dual cycle secondary pyrolysis straw gasifier - Google Patents
Dual cycle secondary pyrolysis straw gasifier Download PDFInfo
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- CN101735838A CN101735838A CN200810228536A CN200810228536A CN101735838A CN 101735838 A CN101735838 A CN 101735838A CN 200810228536 A CN200810228536 A CN 200810228536A CN 200810228536 A CN200810228536 A CN 200810228536A CN 101735838 A CN101735838 A CN 101735838A
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Abstract
The invention relates to a dual cycle secondary pyrolysis straw gasifier, which comprises a main furnace 1, a basin-shaped grate 10 and a working hole 15. The gasifier is characterized in that: a secondary heating sleeve is arranged in the main furnace 1; the secondary heating sleeve has a cylindrical hollow structure and consists of a sleeve 7, a clapboard 9 and a connecting pipe 8; the sleeve 7 is provided with a hole on both sides of the clapboard respectively; and both holes are connected with a No. 2 air pipe 3 and a No. 3 air pipe 4 respectively; the other end of the No. 2 air pipe 3 is connected with a No. 1 auxiliary furnace 5; the other end of the No. 3 air pipe 4 is connected with a No. 2 auxiliary furnace 6; and the connecting pipe 8 is connected with a tap water pipe through a valve. The gasifier is additionally provided with the secondary heating sleeve and the No. 1 auxiliary furnace on the basis of 'downdraft straw gasifier having main furnace and auxiliary furnace structures', realizes dual cycle secondary pyrolysis of furnace gas, and fully pyrolyzes tar in the furnace gas, improves the yield and quality of fuel gas and has the advantages of simple structure and obvious effect.
Description
Technical field
The present invention relates to a kind of stalk gasifier, especially relate to a kind of dual cycle secondary pyrolysis straw gasifier of suitable downdraft.
Background technology
Stalk gasifier is that the pyrolysis under the high temperature anoxia condition of biomass solid fuels such as stalk is produced with hydro carbons, hydrogen and carbon monoxide is the visual plant of the inflammable gas of main component.Stalk gasifier has made full use of renewable energy source, has the effect of the economic environmental protection of energy-saving and emission-reduction.Though but present stalk gasifier is of a great variety, form is different, all do not solve the coal-tar middle oil abundant cracking problem of furnace gas well, cause combustion gas output, quality all unsatisfactory.Though the tar in the combustion gas is washed through cooling off, purifying treatment, but make the output combustion gas up to standard, but the sewage after the washing is difficult to solve.
Summary of the invention
Problem to be solved by this invention is to provide a kind of coal-tar middle oil abundant cracking of furnace gas that makes, and combustion gas output and quality are provided, a large amount of equipment that reduce washing tar.
In order to solve the problem that prior art exists, the technical solution used in the present invention is:
Dual cycle secondary pyrolysis straw gasifier comprises main stove 1, basin shape fire grate 10 and gathering hole 15, it is characterized in that in the main stove 1 the second-heating cover being set, and the second-heating cover is made up of sleeve 7, dividing plate 9 and pipe connecting 8 for annulated column shape hollow structure; Sleeve 7 is respectively opened a hole in the dividing plate both sides, links to each other with 2 # ventpipe 3 and 3# ventpipe 4 respectively; The other end of 2# ventpipe 3 is connected with the secondary stove 5 of 1#; The other end of 3# ventpipe 4 is connected with the secondary stove 6 of 2#; Pipe connecting 8 is connected with running water pipe by valve.
Be that the secondary stove of import of second-heating sleeve and 1# is connected, outlet is connected with the secondary stove of 2#, and dividing plate wherein separates entry and exit.Avoid the combustion gas short circuit, prolong the residence time of furnace gas in sleeve, the cracking of fully being heated.
Be that another small-bore pipe connecting is connected with running water pipe by valve.
Advantage of the present invention and effect:
1, common vapourizing furnace is that biomass solid fuel produces inflammable gas through destructive distillation, pyrolysis, oxidation-reduction reaction in stove, destructive distillation product in the furnace gas (main component is tar and carbon) is through the oxygen-starved area part cracking of major and minor stove high temperature, some not cleaved cooling water wash system that just enters, so not only make and contain a large amount of tar in the recirculated water, also influence combustion gas output and quality simultaneously.In main stove high-temperature zone the second-heating cover is set, making through a cracked furnace gas is not directly to enter the cooling water wash system, carries out the secondary heating cracking but get back to the second-heating cover that is located at main stove high-temperature zone, and the tar content in the furnace gas is further reduced, combustion gas output is higher, better quality.
2, the present invention has been installed the filler pipe road additional in the second-heating cover that installs additional, just produces steam after a spot of water enters the high temperature sleeve, more helps scission reaction, simultaneously, and the H in the steam
2CO in O and the furnace gas
2Reduction reaction at high temperature takes place, and generates H
2, CO and hydro carbons inflammable gas, further improve combustion gas output and quality.
3, a secondary stove is installed in the present invention additional, and furnace gas was prolonged in the high-temperature zone residence time, also helps coke tar cracking, reduces gas tar oil content, improves combustion gas output and quality.
4, the present invention is simple in structure, easy to operate, effect is remarkable.
Description of drawings
Fig. 1 is a dual cycle secondary pyrolysis straw gasifier front view of the present invention; Fig. 2 is a dual cycle secondary pyrolysis straw gasifier vertical view of the present invention; Fig. 3 is a dual cycle secondary pyrolysis straw gasifier A-A sectional view of the present invention; Fig. 4 is second-heating cover front view of the present invention; Fig. 5 is second-heating cover vertical view of the present invention.Wherein main stove 1; 1# ventpipe 2; 2# ventpipe 3; 3# ventpipe 4; The secondary stove 5 of 1#; The secondary stove 6 of 2#; Sleeve 7; Add water pipe connecting 8; Dividing plate 9; Basin shape fire grate 10; Windshield 11, soot door 12; Main bell 13; Charging opening 14; Gathering hole 15.
Embodiment
To shown in Figure 5, dual cycle secondary pyrolysis straw gasifier of the present invention comprises main stove 1 by Fig. 1, and main stove 1 is made up of body of heater, soot door 12, charging opening 14, gathering hole 15, basin shape fire grate 10, windshield 11 and second-heating cover placed on it.The second-heating sleeve is by sleeve 7, dividing plate 9, adds water pipe connecting 8 and constitute, and is connected with two secondary stoves respectively.
1# ventpipe 2 of the present invention, 2 # ventpipe 3,3# ventpipe 4 are respectively between the secondary stove 5 of main stove 1 and 1#: between secondary stove 5 of 1# and the second-heating sleeve; The pipeline that is connected between the secondary stove 6 of second-heating sleeve and 2#, the outside is all done insulation and is handled.Other is with embodiment 1.
Claims (3)
1. dual cycle secondary pyrolysis straw gasifier, comprise main stove (1), basin shape fire grate (10) and gathering hole (15), it is characterized in that in the main stove (1) the second-heating cover being set, the second-heating cover is made up of sleeve (7), dividing plate (9) and pipe connecting (8) for annulated column shape hollow structure; Sleeve (7) is respectively opened a hole in the dividing plate both sides, links to each other with 2# ventpipe (3) and 3# ventpipe (4) respectively; The other end of 2# ventpipe (3) is connected with the secondary stove of 1# (5); The other end of 3# ventpipe (4) is connected with the secondary stove of 2# (6); Pipe connecting (8) is connected with running water pipe by valve.
2. dual cycle secondary pyrolysis straw gasifier according to claim 1 is characterized in that the sleeve (7) that installs additional in the described main stove (1) is installed in high-temperature zone, basin shape fire grate (10) top.
3. dual cycle secondary pyrolysis straw gasifier according to claim 1 is characterized in that the pipe connecting (8) on the described sleeve (7) is connected with tap water by valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810228536A CN101735838A (en) | 2008-11-04 | 2008-11-04 | Dual cycle secondary pyrolysis straw gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810228536A CN101735838A (en) | 2008-11-04 | 2008-11-04 | Dual cycle secondary pyrolysis straw gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101735838A true CN101735838A (en) | 2010-06-16 |
Family
ID=42459875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810228536A Pending CN101735838A (en) | 2008-11-04 | 2008-11-04 | Dual cycle secondary pyrolysis straw gasifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101735838A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022367A (en) * | 2017-02-28 | 2017-08-08 | 武汉天颖环境工程股份有限公司 | A kind of pyrolysis gas of biomass circulating purification system |
| CN107723032A (en) * | 2017-10-25 | 2018-02-23 | 浙江科技学院 | A kind of biomass gasification device and technique |
-
2008
- 2008-11-04 CN CN200810228536A patent/CN101735838A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022367A (en) * | 2017-02-28 | 2017-08-08 | 武汉天颖环境工程股份有限公司 | A kind of pyrolysis gas of biomass circulating purification system |
| CN107723032A (en) * | 2017-10-25 | 2018-02-23 | 浙江科技学院 | A kind of biomass gasification device and technique |
| CN107723032B (en) * | 2017-10-25 | 2023-10-20 | 浙江科技学院 | Biomass gasification device and process |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100616 |