CN2687512Y - Sectional combustion apparatus - Google Patents
Sectional combustion apparatus Download PDFInfo
- Publication number
- CN2687512Y CN2687512Y CN 200420011485 CN200420011485U CN2687512Y CN 2687512 Y CN2687512 Y CN 2687512Y CN 200420011485 CN200420011485 CN 200420011485 CN 200420011485 U CN200420011485 U CN 200420011485U CN 2687512 Y CN2687512 Y CN 2687512Y
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- China
- Prior art keywords
- vaporizer
- gas
- coal
- combustion chamber
- main combustion
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Abstract
The utility model relates to a sectional combustion apparatus which is composed of a vaporizer of the front section and a main combustion chamber of the back section. The utility model is characterized in that the lower part of a front wall of the vaporizer is an inward inclined surface. The upper part of the vaporizer is provided with a gas passage which is connected with the upper air storage chamber of the gas passage. The air storage chamber is communicated with the main combustion chamber via a gas outlet and a gas passage in turn. A secondary tuyere is arranged on the lower part of the furnace wall which is between the vaporizer and the main combustion chamber. The lower part of a back wall of the vaporizer is provided with a plurality of sprayed burning openings which are communicated with the lower part of the main combustion chamber. The sectional combustion apparatus has the function of enlarging the area of aerification and accelerating the volatilization to convert the coal into the gas, which avoids the upper part of the vaporizer catching fire by the reflected hate of the main combustion chamber and makes the vaporizer be in a state of low temperature. The sectional combustion apparatus facilitates the gas and the coal coke which is pushed on the fire grate of the main combustion chamber to burn out at high temperature. The various environmental indexes are all coincide with the criterion of GB2001. The dust emission is 74 mg/m <3> and the Ringelmann flue-gas blackness is smaller than 1 degree. The discharge capacity of the SO2 is 520 mg/m3. The sectional combustion apparatus can save the coal by 10 to 15% and the heat exchange efficiency is at least 78%.
Description
Technical field
The utility model relates to the coal gasification combustion device, relates in particular to the novel sectional combustion device of a kind of fire coal.
Background technology
Coal-burning installation, especially coal-burning boiler have become one of primary pollution source of China's atmosphere, dust in flue gas, black smoke, NOx and SO
2Gas etc. are important pollutants.Restructure the use of energy, using clean energy resourcies such as oil, electricity, gas, solar energy is the fundamental way that addresses the above problem.Right face coal in China is still main energy sources, expects 2010, will account for 70% of China's total energy.Therefore, research and develop the clean combustion technology, become the important topic of numerous scientific and technical personnel's common concern.
Existing gas boiler mainly contains coal-fired steam stove and heat exchanger is formed.Its coal-fired steam stove mainly comprises three ones of gasification, burning and heat exchange.The volatile matter that coal is separated out in burning has restrictive function to the burning of coal tar, makes solid carbon burn numerous and diverseization, difficultyization.Secondary reaction, i.e. CO and CO in the oxidation of solid fuels reaction
2Generation, and the oxidation of CO and CO
2Reduction reaction, all be unfavorable for solid carbon and natural minerals burning of coal.
The designer explores repeatedly by up to a hundred experimental studies, serious analysis, and constantly demonstration works out a kind of novel sectional combustion device.
The utility model content
The purpose of this utility model is to solve the problem that there is atmosphere pollution in prior art, and a kind of novel sectional combustion device is provided, and makes the coal clean combustion, meets the pertinent regulations of country to environmental protection.
The purpose of this utility model is to be achieved by following technical solution:
A kind of novel sectional combustion device is made up of the vaporizer of leading portion and the main chamber of back segment, it is characterized in that:
(1) the front wall bottom of described vaporizer is intilted inclined-plane;
(2) vaporizer top is provided with gas passage near combustion chamber one side; This passage links to each other with the air storage chamber that its top is provided with;
(3) gas exit that is provided with by the furnace wall upside that is located between vaporizer and the back segment main chamber of said air storage chamber links to each other with the gas passage that is in the main chamber inboard; This gas passage links to each other with main chamber.
(4) the furnace wall bottom between vaporizer and main chamber is provided with overfiren air port.
Above-mentioned novel sectional combustion device is provided with a plurality of spray combustion mouths in its described vaporizer Hou Qiang bottom, and this spray combustion mouth links to each other with the main chamber bottom.
The utility model compared with prior art has following advantage:
(a) the vaporizer front wall bottom of leading portion is intilted inclined-plane, has increased draught area, shortens coke pushing mechanism stroke, and pneumatization is enlarged, and volatile matter is separated out rapidly become coal gas, and improve its quality;
(b) gas passage, the air storage chamber that are provided with successively of described vaporizer top; This air storage chamber is communicated with the main chamber bottom by gas exit, gas passage again.This structure, one can reduce the reverberation of back segment main chamber to the leading portion vaporizer, avoids the naked light burning of vaporizer top, makes vaporizer be in reduction and destructive distillation state under the low temperature, thereby guarantees gas quality, prevents to produce CO
2, NO
xDeng; To the high coal charge of sulfur content, can add desulfurizing agent CaCO
3Make SO
2Become CaSO
4Two because do not have furnace wall between main chamber and the heat-transfer surface thereafter, prevents hot flue gas short circuit, heat exchange efficiency 〉=78%.
(c) vaporizer Hou Qiang bottom (being plenum area one side lower part) is provided with many spray combustion mouths, makes coal gas directly spray into combustion chambers burn.And be beneficial in the coal volatile matter and separate out fast, change coal gas rapidly into, release on the fire grate of bottom, combustion chamber, after high temperature burns together, prevent that black smoke from producing, economize on coal the raising heat exchange efficiency at main chamber and the coal that will separate out 60～90% volatile matters with coke pushing mechanism.
(d) owing to adopt aforesaid technical scheme, the utility model environmental index meets GB2001 (II period class one zone concentration of emission limit value) standard-required:
| Project and unit | The utility model | The GB2001 standard |
| Smoke dust discharge concentration mg/m3 blackness of exhaustion (lingemann grade) SO2 concentration of emission mg/m3 | 74 ＜1 520 | ≤80 ＜1 ≤900 |
Description of drawings
Figure the utility model structural representation, wherein:
1-vaporizer 2-coal filling hole 3-air storage chamber 4-passage I
5-gas exit 6-passage II 7-main chamber 8-overfiren air port
9-spray combustion mouthful 10-inclined-plane 11-delivery port 12-heat-transfer surface
The 13-water inlet
The specific embodiment
Now in conjunction with the accompanying drawings and embodiments, the utility model is described in detail as follows:
Embodiment:
See accompanying drawing 1, the utility model is made up of the vaporizer 1 of leading portion and the main chamber 7 of back segment.Vaporizer 1 top newly is provided with gas passage I4 by main chamber 7 one sides, is connected with the air storage chamber 3 that its top newly is provided with.This air storage chamber 3 is connected with the gas passage II6 that is in main chamber 7 inboards by being located at the gas exit 5 of the furnace wall upside between vaporizer 1 and the main chamber 7; The outlet of this passage II6 lower end is communicated with main chamber 7 bottoms.Furnace wall bottom between vaporizer 1 and main chamber 7 is provided with overfiren air port 8.(being reducing zone one side lower part) is provided with 40～50 spray combustions mouthfuls 9 in vaporizer Hou Qiang bottom, and this spray combustion mouthfuls 9 is communicated with main chamber 7 bottoms.
Be added to coal on leading portion vaporizer 1 and the fire grate thereof from coal filling hole 2, feed a wind down from it and light, form oxidation panel low temperature generation coal gas down it on.Be in oxidation panel top (being interlude) for reduction section, with CO
2Exist to be reduced to CO under reducing agent, it is retort section that gasification gas enters the upper strata, preheating, drying, destructive distillation.Produce dry distillation gas.Dry distillation gas mixes with the gasification gas that enters retort section, through passage I4, air storage chamber 3, gas exit 5, passage II6 with enter main chamber 7 from the secondary wind of overfiren air port 8, gasification gas from spray combustion mouthfuls 9, under the red-hot coal tar effect on main chamber 7 fire grates, promote the high temperature after-flame of coal gas and coal tar.NO in vaporizer 1
xBe reduced to N
2About 800 ℃ of temperature on the section of 1 time coke outlet correspondence of vaporizer, one takes off the high temperature coal tar of 60～90% volatile matters, be pulled on main chamber 7 lower fire gratings, wherein remain the further pyrolysis oxidation in semicoke of a spot of volatile matter, and NOX is reduced, and generates the jet-black combustible through burnt surperficial by after-flame; Two under 800～900 temperature, if coal charge sulfur content height can add proper C aCO
3With SO
2Become CaSO
4, to remove SO
2
Can behind main chamber 7, be provided with heat-transfer surface 12 as required, because the technical scheme that adopts the utility model to provide, will be from the water heating of water inlet 13, its hot water is delivered to the user by delivery port 11.Certainly also can supply steam as required, or carbonated drink is supplied simultaneously.Its heat exchange efficiency 〉=78% economizes on coal 10～15%.
Claims (2)
1, a kind of novel sectional combustion device is made up of the vaporizer (1) of leading portion and the main chamber (7) of back segment, it is characterized in that:
The front wall bottom of 1. described vaporizer (1) is introversion formula inclined-plane (10);
2. be provided with gas passage I (4) on vaporizer (1) top by combustion chamber (7) one sides; This gas passage I (4) links to each other with the air storage chamber (3) that its top is provided with;
3. the gas exit (5) that above-mentioned air storage chamber (3) is provided with by the furnace wall upside that is located between vaporizer (1) and combustion chamber (7), the gas passage II (6) inboard with being in main chamber (7) links to each other; This gas passage (6) lower end links to each other with main chamber (7);
4. the furnace wall bottom is provided with overfiren air port (8) between vaporizer (1) and main chamber (7).
2, novel sectional combustion device according to claim 1 is characterized in that: be provided with a plurality of spray combustions mouthful (9) in vaporizer (1) Hou Qiang bottom, this spray combustion mouthful (9) links to each other with main chamber (7) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420011485 CN2687512Y (en) | 2004-01-16 | 2004-01-16 | Sectional combustion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420011485 CN2687512Y (en) | 2004-01-16 | 2004-01-16 | Sectional combustion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687512Y true CN2687512Y (en) | 2005-03-23 |
Family
ID=34668540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420011485 Expired - Fee Related CN2687512Y (en) | 2004-01-16 | 2004-01-16 | Sectional combustion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687512Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368726C (en) * | 2005-05-13 | 2008-02-13 | 冯之军 | A coal pyrolytic gasified combustion apparatus and method |
| CN103939890A (en) * | 2014-04-04 | 2014-07-23 | 韩秋成 | Coal produced gas integration chain grate boiler |
-
2004
- 2004-01-16 CN CN 200420011485 patent/CN2687512Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368726C (en) * | 2005-05-13 | 2008-02-13 | 冯之军 | A coal pyrolytic gasified combustion apparatus and method |
| CN103939890A (en) * | 2014-04-04 | 2014-07-23 | 韩秋成 | Coal produced gas integration chain grate boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Wei Xikun Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |