CN202747379U - Boiler stratified combustion coal supply device - Google Patents
Boiler stratified combustion coal supply device Download PDFInfo
- Publication number
- CN202747379U CN202747379U CN 201220381541 CN201220381541U CN202747379U CN 202747379 U CN202747379 U CN 202747379U CN 201220381541 CN201220381541 CN 201220381541 CN 201220381541 U CN201220381541 U CN 201220381541U CN 202747379 U CN202747379 U CN 202747379U
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- Prior art keywords
- coal
- boiler
- plate
- fire grate
- chain wheel
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- Expired - Fee Related
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Abstract
The utility model relates to a boiler stratified combustion coal supply device, which comprises a coal bucket, a coal guide plate, a chain wheel, a coal adjusting plate, a sieve plate, a front arch and a chain wheel fire grate, and is characterized in that the coal adjusting plate is fixed above the chain wheel in a hinged mode, the sieve plate is arranged between the coal adjusting plate and the chain wheel fire grate, and the sieve plate and the chain wheel fire grate are fixed in a 45 degrees. Raw coals are distributed according to the mode that large pieces of raw coals are arranged on a lower layer, small pieces of raw coals are arranged in a middle layer and coal dust is arranged on an upper layer after being treated through the sieve plate before entering a hearth, and gaps between raw coals are retained, thereby guaranteeing excellent ventilation, promoting the raw coals to be fully burnt, and improving thermal efficiency of a boiler.
Description
Technical field
The utility model relates to the boiler coal-feeding device, specifically relates to a kind of boiler stratified combustion coal feeding device.
Background technology
What boiler generally used at present is chain fire-gate coal-feeding device, its principle is to burn in the primary zone of sending into burner hearth that mixes of the coal cinder with different volumes, because coal seam, primary zone resistance skewness, the coal bed ventilation condition is poor, burn insufficient, cause not fully burning of raw coal, reduced the thermal efficiency of boiler.Existing improvement measure is, coal bunker before boiler increases the grid sieve, can make the raw coal after the screening form big or small layering at fire grate, improved the ventilation condition in coal seam, improved the thermal efficiency of boiler, but grid sieve is when minute coal, and the grid sieve easily stops up, can not continuous and effective coal cinder is carried out hierarchical screening.
Summary of the invention
For addressing the above problem, the utility model provides a kind of boiler stratified combustion coal feeding device, is achieved through the following technical solutions:
A kind of boiler stratified combustion coal feeding device is made of coal bunker, coal guide plate, sprocket wheel, accent coal plate, sieving plate, face arch, sprocket wheel fire grate, it is characterized in that:
1, described accent coal plate is fixed on the sprocket wheel top in hinged way.
2, described sieving plate is arranged on and transfers in the middle of coal plate and the sprocket wheel fire grate, and sieving plate and sprocket wheel fire grate are 45° angle to be fixed.
The beneficial effects of the utility model are: entering burner hearth after raw coal is processed through sieving plate front is that bulk, centre are the layout of ickings for fritter, upper strata according to lower floor, slit between the coal cinder is kept, guarantee good ventilation, promote the abundant burning of raw coal, thereby improve boiler thermal output.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1-coal bunker, 2-coal guide plate, 3-sprocket wheel, 4-transfer coal plate, 5-sieving plate, 6-face arch, 7-sprocket wheel fire grate.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of boiler stratified combustion coal feeding device, by coal bunker 1, coal guide plate 2, sprocket wheel 3, transfer coal plate 4, sieving plate 5, face arch 6, sprocket wheel fire grate 7 consists of, raw coal is entered by coal bunker 1, by coal guide plate 2, sprocket wheel 3 and the adjusting of transferring coal plate 4, drop down onto on the sieving plate 5, raw coal is blown by making progress under the effect of sieving plate 5 and the effect of gravity mechanical sub-sieve is bulk according to lower floor, the centre is fritter, the upper strata is that the distribution mode of ickings is arranged on the sprocket wheel fire grate 7, so that the slit between the coal cinder is kept, Uniform Ventilation, promote the sufficient combustion of raw coal, improved the thermal efficiency of boiler.
Claims (2)
1. boiler stratified combustion coal feeding device, it is characterized in that: this device is made of coal bunker, coal guide plate, sprocket wheel, accent coal plate, sieving plate, face arch, sprocket wheel fire grate, and described accent coal plate is fixed on the sprocket wheel top in hinged way.
2. a kind of boiler stratified combustion coal feeding device according to claim 1 is characterized in that: described sieving plate is arranged on to be transferred in the middle of coal plate and the sprocket wheel fire grate, and described sieving plate and sprocket wheel fire grate are 45° angle to be fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381541 CN202747379U (en) | 2012-08-03 | 2012-08-03 | Boiler stratified combustion coal supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381541 CN202747379U (en) | 2012-08-03 | 2012-08-03 | Boiler stratified combustion coal supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202747379U true CN202747379U (en) | 2013-02-20 |
Family
ID=47706769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220381541 Expired - Fee Related CN202747379U (en) | 2012-08-03 | 2012-08-03 | Boiler stratified combustion coal supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202747379U (en) |
-
2012
- 2012-08-03 CN CN 201220381541 patent/CN202747379U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130803 |