CN202747379U - Boiler stratified combustion coal supply device - Google Patents

Boiler stratified combustion coal supply device Download PDF

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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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CN
China
Prior art keywords
coal
boiler
plate
fire grate
chain wheel
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
Application number
CN 201220381541
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Chinese (zh)
Inventor
闫岩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Binhai Guanlin Science & Technology Co Ltd
Original Assignee
Tianjin Binhai Guanlin Science & Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Binhai Guanlin Science & Technology Co Ltd filed Critical Tianjin Binhai Guanlin Science & Technology Co Ltd
Priority to CN 201220381541 priority Critical patent/CN202747379U/en
Application granted granted Critical
Publication of CN202747379U publication Critical patent/CN202747379U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

A kind of boiler stratified combustion coal feeding device
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.
CN 201220381541 2012-08-03 2012-08-03 Boiler stratified combustion coal supply device Expired - Fee Related CN202747379U (en)

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)

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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