CN85200062U - New structure of fixed-bed coal gas producer - Google Patents
New structure of fixed-bed coal gas producer Download PDFInfo
- Publication number
- CN85200062U CN85200062U CN 85200062 CN85200062U CN85200062U CN 85200062 U CN85200062 U CN 85200062U CN 85200062 CN85200062 CN 85200062 CN 85200062 U CN85200062 U CN 85200062U CN 85200062 U CN85200062 U CN 85200062U
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- furnace
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- fixed bed
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- solid
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Abstract
The utility model provides a new structure of a fixed bed gas generating furnace, replacing the equal-diameter furnace body in the prior art with a new furnace body comprising a geometric body formed of a small upper part and a big lower part. Thus, the index of the gasification intensity of the fixed-bed high-efficiency gas furnace is increased three times above. Simultaneously, the chemical conversion rate of the fuel is improved correspondingly, while the consumption of steels is reduced evidently. The utility model also puts forward a device which can adjust the height position of the furnace grate of the fixed bed gas generating furnace, and thus the adaptation range of the coal species of the fixed bed gas generating furnace is enlarged.
Description
The invention belongs to a kind of novel fixed bed coal gas producer, particularly a kind of low cost, high-effect, the simple fixed bed coal gas producer of technology.
At present, domestic and international existing fixed bed coal gas producer all adopts equal diameter furnace binding (as United States Patent (USP) U.S.P4453949 in 1984 and U.S.P4453950).This producer gas generator is made up of coal mechanism, water jacket body and fire grate parts.Coal is sent in the stove by stoker, moves down by gravity, and vaporized chemical is sent in the stove by furnace bottom, and depended on pressure upwards flows, and coal carries out physical-chemical reaction with the reverse mobile layering of vaporized chemical in stove.The gasification intensity index of this equal diameter stove is generally at 180-350 kilogram/rice
2Hour (" current situation and development of domestic normal pressure gas producer " introduced as 1981 the 5th phases town gas publication; " town gas manufacturing " first volume that Japan coal gas association compiles).This gas furnace bodily form is huge, and cost is higher, and the chemical conversion rate of gasification intensity index and fuel is low, and widespread use is restricted on every profession and trade.
Recent two decades comes, and has made extensive work improving on gas furnace gasification intensity index and the chemical conversion rate both at home and abroad, has developed some novel gas stoves, as the strange pressure stove in Shandong etc.Yet body of heater still adopts the equal diameter structure.The pressure stove has improved gasification intensity index and chemical conversion rate, but need one the cover make gasifying agent pressure be elevated to 30 kgfs/centimetre
2Utility appliance, cause that system is huge, technical sophistication, cost is huge increases.This has just limited the promotion and application of pressure stove.
At the above-mentioned defective of domestic and international gas furnace, the present invention proposes as shown in drawings: be the small cross-section solid upward, be that the new texture gas furnace of large section solid, its structure can be designed to circle or other up-small and down-big geometrical shape as requested down; And the fire grate of gas furnace can be according to the difference of coal, ature of coal and is adjusted up and down accordingly at any time.
Technical scheme of the present invention is as described below:
Novel fixed bed gasifier is structure as shown in drawings, adopt in the stove bottom be sudden enlargement how much bodily forms of large section low spatial 3., top be how much cones of small cross-section high spatial 4., at large section, bottom low spatial oxidation panel 3., fuel is spread into out the book layer by big area, and the penetration power of air-flow improves; Contact interface between the reactant increases, and this way of contact has improved the probability of the suitable orientation collision between atom (or molecule), thereby has accelerated fuel oxidation reaction: C+O
2=CO
2The carrying out of+Q, and fuel combustion is got fully.At reduction section: CO
2+ C=2CO-Q because the small cross-section high spatial structure on top 4., makes fuel be thin and tall shape, and arranged between the reactant sufficient duration of contact; Because of the cross section dwindles suddenly, improved the flow velocity of rising hot-fluid, increased the thermal load that flows through on the unit surface, aggravated the convective heat exchange between the reactant, the temperature of reduction section fuel bed is raise; Dwindling of cross section makes in the reduction section amount of carbon dioxide be replenished very soon again.Above-mentioned factors must be accelerated the speed of reduction reaction, and make that reaction carries out not only fully but also complete.
In order to make this producer gas generator can be adapted to different coals, especially be applicable to ature of coal is poor, calorific value is low coal or coal gangue, the present invention also design fire grate as shown in drawings 2. the lower end the fire grate arrangement for adjusting height 1., this device can be made up of mechanical elevating mechanism, also can be made up of hydraulicefficiency elevation structure.
One-piece construction of the present invention is described below with reference to accompanying drawing: 1. adjust fire grate height location device; 2. fire grate; 3. large section low spatial oxidation panel; 4. small cross-section high spatial reduction section; 5. fire-resistant body and shell; 6. gas exit; 7. visit burner; 8. bell jar coal mechanism; 9. coal bunker; 10. stoker power set; (11) vapour outlet; (12) water jacket body; (13) disintegrating slag circle; (14) ash-pan.
Use the atmospheric fixed bed gas-producer that the present invention designs a kind of up-small and down-big structure, its main technical details is:
1. gasification intensity index: 1100 kilograms/meter
2Hour.
2. gas yield: 2000-3300 standard rice
3/ hour.
3. reduction section diameter: 1.1 meters.
4. body of heater total height: 2.2 meters.
From above-mentioned parameter as can be seen, the gas furnace of new texture has improved more than 2 times than the output of existing normal pressure gas stove, and is basic identical with Shandong strange pressure producer gas output, but technology is simple, easy to operate, and the steel consumption of gas furnace descends 40%.So using the present invention has very big economic benefit.
Because the present invention has the premium properties that improves gas furnace gas making operating mode, therefore, it can make the fuel gas of various compositions.Obviously, its application surface is very extensive.
Claims (3)
1, the novel fixed bed coal gas producer of being made up of body of heater, fire grate and stoker is characterized in that: how much cones of small cross-section high spatial are adopted on the top of body of heater, and the large section low spatial solid structure of sudden enlargement is adopted in the bottom; The fire grate height can move up and down.
2, according to the gas furnace of being put down in writing in the claim 1, it is characterized in that: top small cross-section solid is a circular configuration, and large section, bottom solid is the flared structure of circle.
3,, it is characterized in that according to the gas furnace of being put down in writing in the claim 1: top small cross-section solid and large section, bottom solid, can adopt other up-small and down-big solid structure as requested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85200062 CN85200062U (en) | 1985-04-01 | 1985-04-01 | New structure of fixed-bed coal gas producer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85200062 CN85200062U (en) | 1985-04-01 | 1985-04-01 | New structure of fixed-bed coal gas producer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85200062U true CN85200062U (en) | 1986-11-05 |
Family
ID=4796485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85200062 Ceased CN85200062U (en) | 1985-04-01 | 1985-04-01 | New structure of fixed-bed coal gas producer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85200062U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393851C (en) * | 2004-04-05 | 2008-06-11 | 陈科正 | High strength and cheap gas generator |
| CN100393850C (en) * | 2004-01-19 | 2008-06-11 | 陈科正 | High-strength and low cost double grate gas generating stoves |
| CN102492489A (en) * | 2011-12-08 | 2012-06-13 | 上海交通大学 | Biomass staged oxygen-supplying gasification furnace and gasification method |
| CN102492475A (en) * | 2011-12-08 | 2012-06-13 | 上海交通大学 | Biomass adjustable furnace grate gasification furnace |
-
1985
- 1985-04-01 CN CN 85200062 patent/CN85200062U/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393850C (en) * | 2004-01-19 | 2008-06-11 | 陈科正 | High-strength and low cost double grate gas generating stoves |
| CN100393851C (en) * | 2004-04-05 | 2008-06-11 | 陈科正 | High strength and cheap gas generator |
| CN102492489A (en) * | 2011-12-08 | 2012-06-13 | 上海交通大学 | Biomass staged oxygen-supplying gasification furnace and gasification method |
| CN102492475A (en) * | 2011-12-08 | 2012-06-13 | 上海交通大学 | Biomass adjustable furnace grate gasification furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right | ||
| CE01 | Termination of patent right |