CN2147486Y - Combustion furnace for paddy shell - Google Patents
Combustion furnace for paddy shell Download PDFInfo
- Publication number
- CN2147486Y CN2147486Y CN 93201368 CN93201368U CN2147486Y CN 2147486 Y CN2147486 Y CN 2147486Y CN 93201368 CN93201368 CN 93201368 CN 93201368 U CN93201368 U CN 93201368U CN 2147486 Y CN2147486 Y CN 2147486Y
- Authority
- CN
- China
- Prior art keywords
- distribution grid
- firing
- boiler
- chamber
- industrial 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 - Fee Related
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The utility model discloses a boiler or an industrial furnace, which has three firing methods, such as the fluidization firing, the suspension firing and the grate firing. The inner part of the boiler or the industrial furnace is provided with two distribution plates, and a partition wall is arranged between the two distribution plates; the partition wall and the two distribution plates and the wall of the boiler or the industrial furnace compose a fluidized-bed firing chamber and a fired-out chamber, and the upper part of the fluidized-bed firing chamber and the fired-out chamber and a boiler top or an industrial furnace top compose a suspension chamber. The boiler or the industrial furnace with the structure is optimal to use the paddy casing as the fuel, the fuel volatilizes and analyzes out the obvious stage with the coke firing, and can fire in mix the faulty coal and can fire singly the coal. The utility model has the advantages of energy-saving performance, compact structure and convenient operation.
Description
The utility model belongs to a kind of stove, and particularly suitable is done the burning of fuel with rice hulls, corncob, wood chip, colm etc.
Fuel such as current combustion rice hulls adopt the fixed bed burning more, and gas and solid incomplete combustion loss are bigger, the lime-ash conglomeration, and deslagging is not smooth, is difficult to operation steady in a long-term; Among the fluidized bed combustion rice hulls is being studied, but because the rice hulls fugitive constituent is separated out rapidly, coke is difficult to burn, and the burning of fugitive constituent and the burning of coke are finished more stage by stage, so adopt simple fluidized bed combustion also to be difficult to make the rice hulls burning fully.
At the shortcoming of above-mentioned prior art, the purpose of this utility model provides a kind of combustion furnaces of three combinations, and it combines fluidized bed combustion, suspension combustion and grate firing combustion system, thereby fuel such as rice hulls can be fully burned.
For reaching this purpose, the utility model is design like this: two adjacent distribution grids are housed in the burner hearth of boiler or Industrial Stoves, respectively there is an air compartment its underpart, one midfeather is arranged between two distribution grids, constituted fluidized bed combustion chamber between partition wall and distribution grid and the furnace wall, and constituted burning chamber between another piece distribution grid and the furnace wall, the top of fluidized bed combustion chamber and burning chamber and furnace roof constitute floater, the furnace wall of floater is provided with the air port, is provided with slag-drip opening in a side that burns bed.
Advantage of the present utility model is:
1. because fluid bed wind rate is lower, and fluidizing velocity is slower, help reducing the fly out share of fluid bed of flying dust, reduce the solid incomplete combustion loss.
2. be oxygen deficient atmospheres in the fluid bed, make the part fugitive constituent, help improving the floater temperature, make combustible further burning in floater in the flying dust, and, generate NO because fluid bed is a reducing atmosphere in the floater internal combustion
XAlso can be still less.
3. thicker particle enters through midfeather and floater sedimentation from fluid bed and burns bed, burn bed and adopt low dip distribution grid or wind cap, particle is boiling slightly under the operating mode of low wind speed, slowly flows to slag-drip opening, not only prolonged fuel in stove the time of staying but also make deslagging unimpeded smoothly.
4. fuel tolerance is wide.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Chamber structure of the present utility model as shown in Figure 1.Distribution grid 5 is housed in the burner hearth, its three limit is connected with the furnace wall, near person's distribution grid 5 another piece distribution grid 9 is housed, distribution grid 9 relative dual-sides are connected with the furnace wall, and its underpart is respectively I section wind air compartment 6 and III section wind air compartment 7, one midfeather 3 is arranged between two distribution grids 5 and 9, use brick one-tenth, it highly can be 100～2000mm, can have a plurality of exchange of particles hole on it, make the abundant fluidisation of particle, the more abundant burning of fuel.Constituted fluidized bed combustion chamber 4 between partition wall 3 and distribution grid 5 and the furnace wall, and constituted burning chamber 8 between distribution grid 9 and the furnace wall, constituted floater 1 between the top of fluidized bed combustion chamber and burning chamber and furnace roof, be provided with air port 2, can be one or more at floater 1 sidewall.Distribution grid 9 has a side to be provided with slag-drip opening 10.For the ease of deslagging, distribution grid 9 can be low dip, and angle is 0～20 degree, also can be furnished with unidirectional blast cap 11 on it.
One section air is by air compartment 6, and distribution grid 5 enters fluid bed 4, and fuel particle is burnt under fluidized state, and two sections wind are sent into floater 1 by air port 2.Making fuel gas, also have the carbon in the flying dust further to burn, mainly is the fuel gas that fugitive constituent is separated out generation for the rice hulls of high-volatile.The particle that major part does not burn enters by midfeather 3 and floater 1 sedimentation and burns bed 8, three sections air are by air compartment 7, distribution grid 9 enters and burns bed, make solid particle be in semi-fluidization and grate firing state, further burning, lime-ash is discharged by slag-drip opening 10, and the flue gas that burning produces flow through convection heating surface and back-end ductwork enter atmosphere by air-introduced machine again.
This structure with three combined burning modes of the utility model can be widely used in the boiler or the Industrial Stoves of existing different capabilities.By analyzing, should realize, as long as adopted the said structure that forms three combined burning modes, all within protection of the present utility model for the boiler and the Industrial Stoves of various structures.
Claims (5)
1, a kind of with rice hulls, wood chips etc. are made the boiler and the Industrial Stoves of fuel, it is characterized in that: distribution grid (5) and another adjacent with it piece distribution grid (9) are housed in stove, respectively there is an air compartment (6) its underpart, (7), one midfeather (3) is arranged between two distribution grids (5) and (9), constituted fluidized bed combustion chamber (4) between partition wall (3) and distribution grid (5) and the furnace wall, and constituted burning chamber (8) between distribution grid (9) and the furnace wall, constituted floater (1) between fluidized bed combustion chamber and burning chamber top and the furnace roof, the furnace wall of floater (1) is provided with air port (2), is provided with slag-drip opening (10) in a side of distribution grid (9).
2, stove according to claim 1 is characterized in that: distribution grid (9) is the low dip setting, and angle is 0～20 degree.
3, according to claim 1,2 described stoves, it is characterized in that: can be furnished with unidirectional blast cap (11) on the distribution grid (9).
4, according to claim 1,2 described stoves, it is characterized in that: the height of partition wall (3) is 100～2000mm, can have a plurality of exchange of particles hole on it.
5, stove according to claim 3 is characterized in that: the height of partition wall (3) is 100～2000mm, can have a plurality of exchange of particles hole on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93201368 CN2147486Y (en) | 1993-01-14 | 1993-01-14 | Combustion furnace for paddy shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93201368 CN2147486Y (en) | 1993-01-14 | 1993-01-14 | Combustion furnace for paddy shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2147486Y true CN2147486Y (en) | 1993-11-24 |
Family
ID=33785864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93201368 Expired - Fee Related CN2147486Y (en) | 1993-01-14 | 1993-01-14 | Combustion furnace for paddy shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2147486Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289322B (en) * | 2008-06-06 | 2011-09-07 | 陈信旺 | Process for producing ceramic and special equipment thereof |
| CN102252325A (en) * | 2011-05-12 | 2011-11-23 | 无锡华光锅炉股份有限公司 | Circulating fluidized bed boiler capable of burning rice husks |
| CN104990086A (en) * | 2015-07-01 | 2015-10-21 | 集美大学 | Fluidized bed garbage incinerator |
| CN105927972A (en) * | 2016-05-10 | 2016-09-07 | 北京热华能源科技有限公司 | Wind distribution device facilitating discharging of big particle matter and multi-flow circulating fluidized bed boiler |
| CN105927975A (en) * | 2016-05-10 | 2016-09-07 | 北京热华能源科技有限公司 | Air distribution plate, selective deslagging device and multi-flow circulating fluidized bed boiler |
-
1993
- 1993-01-14 CN CN 93201368 patent/CN2147486Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289322B (en) * | 2008-06-06 | 2011-09-07 | 陈信旺 | Process for producing ceramic and special equipment thereof |
| CN102252325A (en) * | 2011-05-12 | 2011-11-23 | 无锡华光锅炉股份有限公司 | Circulating fluidized bed boiler capable of burning rice husks |
| CN104990086A (en) * | 2015-07-01 | 2015-10-21 | 集美大学 | Fluidized bed garbage incinerator |
| CN104990086B (en) * | 2015-07-01 | 2018-05-22 | 集美大学 | A kind of fluidized bed refuse incinerator |
| CN105927972A (en) * | 2016-05-10 | 2016-09-07 | 北京热华能源科技有限公司 | Wind distribution device facilitating discharging of big particle matter and multi-flow circulating fluidized bed boiler |
| CN105927975A (en) * | 2016-05-10 | 2016-09-07 | 北京热华能源科技有限公司 | Air distribution plate, selective deslagging device and multi-flow circulating fluidized bed boiler |
| CN105927975B (en) * | 2016-05-10 | 2018-05-18 | 北京热华能源科技有限公司 | A kind of air distribution plate, selective deslagging device and multipath circulating fluidized bed boiler |
| CN105927972B (en) * | 2016-05-10 | 2018-12-11 | 北京热华能源科技有限公司 | Conducive to the air-distribution device and multipath circulating fluidized bed boiler of discharge large particle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |