CN203550562U - Air distribution plate of fluidized bed combustion boiler - Google Patents
Air distribution plate of fluidized bed combustion boiler Download PDFInfo
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- CN203550562U CN203550562U CN201320697816.5U CN201320697816U CN203550562U CN 203550562 U CN203550562 U CN 203550562U CN 201320697816 U CN201320697816 U CN 201320697816U CN 203550562 U CN203550562 U CN 203550562U
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- air
- fluidized bed
- air holes
- plate body
- distribution plate
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Abstract
The utility model discloses an air distribution plate of a fluidized bed combustion boiler. The air distribution plate of the fluidized bed combustion boiler comprises a plate body, wherein air holes are formed in the plate body, air caps are mounted on the air holes, the air holes regularly distributed horizontally and vertically are formed in the plate body, the centers of the transverse adjacent air holes of every two lines or the centers of the longitudinal adjacent air holes of every two columns are connected in lines in sequence to form congruent rectangles, and the air holes are also formed in the intersection points of the diagonal lines of the rectangles. According to the air distribution plate of the fluidized bed combustion boiler, the air holes regularly distributed horizontally and vertically are formed in the plate body, the centers of the transverse adjacent air holes of every two lines or the centers of the longitudinal adjacent air holes of every two columns are connected in lines in sequence to form the congruent rectangles, the air holes are also formed in the intersection points of the diagonal lines of the rectangles, and thus the air holes in the plate body are distributed more evenly. The shape of the air caps is of a hollow cylindrical structure, air outlets inclined outwards and downwards are formed in the upper ends of the air caps, and thus sufficient air supply and even air supply in the combustion chamber can be ensured.
Description
Technical field
The utility model relates to a kind of fluidized bed furnace, is specifically related to a kind of fluidized bed furnace air distribution plate.
Background technology
Fluidized bed furnace is a kind of type of furnace of 3 ~ 0 millimeters (5 ~ 0 millimeters) mainly for the treatment of ore grain size.Fluidized bed roasting is take fluidization technology as basis.Solid particle, under the effect of air-flow, forms fluidization bed pseudo boiling state, is known as fluidized-bed or ebullated bed.Ore can carry out heat reduction under fluidized state like this, is conducive to improve roasted ore quality.Roaster is comprised of main stove and secondary stove; In the middle of major and minor stove, be provided with dividing plate, top is communicated with, and burner hearth is square cross-section, and main stove bottom zone of reduction is circular cylinder body, and bottom is provided with gas distribution grid; In secondary stove, there are 10 layers of shelves flitch; Body of heater is brick construction, metal shell; Major and minor stove, on differing heights, is provided with three row's coal gas burners, for burning.The operation principle of boiling boiler is to be crushed to the conny of certain particle size, rises with wind, becomes the burning of boiling shape on the certain altitude of burner hearth; The burning of coal in fluidized bed furnace, neither carry out on fire grate, neither as coal-powder boiler, be suspended in space combustion, but carry out on boiling furnace charge bed.The outstanding advantages of fluidized bed furnace is, wide to coal adaptability, incendivity bituminous coal, anthracite, brown coal and gangue; Its another benefit is to make fuel combustion abundant, thereby improves the utilization rate of fuel.The mean temperature of the boiling bed of material is generally at 850 1 1050 ℃, and the bed of material is very thick, is equivalent to a large accumulation of heat pond; wherein fuel only accounts for 5% left and right; the coal grain newly adding just enters after the bed of material and the scorching hot particle mixing of high tens times of temperature, therefore can burn very soon, therefore can apply coal gangue subculture, replaces.Existing fluidized bed furnace in use; often there is coking phenomenon; once coking is shut down and is cleared up with regard to needs; coking time also can affect fluidized bed furnace service life for a long time; occur that the problems referred to above are all because affected by the blast cap of its air distribution plate and the arrangement of passage; the blast cap of air distribution plate and the improper meeting of the arrangement of passage cause wind supply quantity deficiency in stove to cause air feed inequality, affect fluidized bed furnace and normally use.
Utility model content
The purpose of this utility model is to provide the favorably situated fluidized bed furnace air distribution plate of a kind of passage, guarantees the wind supply quantity in stove, prevents coking.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of fluidized bed furnace air distribution plate, comprise plate body, plate body is provided with passage, blast cap is installed on passage, plate body is provided with laterally, the passage of vertical regular distribution, the center of horizontal two the adjacent passages of every two row or longitudinal two the adjacent passages of every two row successively link group becomes congruent rectangle, and the diagonal intersection point place of rectangle is also provided with passage.
The centre-to-centre spacing of described laterally adjacent two passages with the ratio of the centre-to-centre spacing of vertical adjacent two passages is: 1:
.
Described blast cap be shaped as interior void column body structure, blast cap upper end is provided with the exhaust vent of declivity laterally.
In the utility model, plate body is provided with laterally, the passage of vertical regular distribution, every two horizontal two adjacent holes of row or every two longitudinal adjacent Liang Gekong centers of row successively link group become congruent rectangle, the diagonal intersection point place of rectangle is also provided with passage, and the passage on plate body is more evenly distributed; Laterally the centre-to-centre spacing in adjacent two holes with the ratio of the centre-to-centre spacing in vertical adjacent two holes is: 1:
, can make the distance between every two rows or every two adjacent two passages that are listed as equate, passage is evenly distributed, and when having sufficient wind supply quantity in assurance stove, makes air feed even, guarantees that fluidized bed furnace runs well; Blast cap be shaped as interior void column body structure, blast cap upper end is provided with the exhaust vent of declivity laterally, can guarantee to have in burner hearth sufficient air feed and air feed even.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model Apoplexy cap structural representation.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of fluidized bed furnace air distribution plate, comprise plate body 1, plate body 1 is provided with passage 2, blast cap 4 is installed on passage 2, plate body 1 is provided with laterally, the passage 2 of vertical regular distribution, and the center of horizontal two the adjacent passages of every two row or longitudinal two the adjacent passages of every two row successively link group becomes congruent rectangle, and the diagonal intersection point place of rectangle is also provided with passage.The centre-to-centre spacing L1 of described laterally adjacent two passages with the ratio of the centre-to-centre spacing L2 of vertical adjacent two passages is: 1:
.Described blast cap 4 be shaped as interior void column body structure, blast cap 4 upper ends are provided with the exhaust vent 5 of declivity laterally, the axis of exhaust vent 5 and the included angle A of horizontal direction are 15 ° ~ 18 °, can guarantee to have in burner hearth sufficient air feed and air feed even.
In the utility model, the middle part of plate body 1 is provided with multiple mud holes 3, and the effect of mud hole 3 is for waste discharge slag.
Claims (3)
1. a fluidized bed furnace air distribution plate, comprise plate body, plate body is provided with passage, blast cap is installed on passage, it is characterized in that, plate body is provided with laterally, the passage of vertical regular distribution, and the center of horizontal two the adjacent passages of every two row or longitudinal two the adjacent passages of every two row successively link group becomes congruent rectangle, and the diagonal intersection point place of rectangle is also provided with passage.
2. fluidized bed furnace air distribution plate as claimed in claim 1, is characterized in that, the centre-to-centre spacing of described laterally adjacent two passages with the ratio of the centre-to-centre spacing of vertical adjacent two passages is: 1:
.
3. fluidized bed furnace air distribution plate as claimed in claim 1 or 2, is characterized in that, described blast cap be shaped as interior void column body structure, blast cap upper end is provided with the exhaust vent of declivity laterally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320697816.5U CN203550562U (en) | 2013-11-07 | 2013-11-07 | Air distribution plate of fluidized bed combustion boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320697816.5U CN203550562U (en) | 2013-11-07 | 2013-11-07 | Air distribution plate of fluidized bed combustion boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203550562U true CN203550562U (en) | 2014-04-16 |
Family
ID=50468669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320697816.5U Expired - Fee Related CN203550562U (en) | 2013-11-07 | 2013-11-07 | Air distribution plate of fluidized bed combustion boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203550562U (en) |
-
2013
- 2013-11-07 CN CN201320697816.5U patent/CN203550562U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20181107 |