CN219525302U - Coal feeder belt return stroke purging device of thermal power factory - Google Patents
Coal feeder belt return stroke purging device of thermal power factory Download PDFInfo
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- CN219525302U CN219525302U CN202320272504.3U CN202320272504U CN219525302U CN 219525302 U CN219525302 U CN 219525302U CN 202320272504 U CN202320272504 U CN 202320272504U CN 219525302 U CN219525302 U CN 219525302U
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- sweeping
- feeder belt
- main pipe
- coal feeder
- coal
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Abstract
The utility model discloses a coal feeder belt return sweeping device of a thermal power plant, which comprises a sweeping main pipe transversely arranged above a coal feeder belt, wherein the head end of the sweeping main pipe is connected with a wind source through a pipeline, a control valve is arranged on the pipeline, a plurality of sweeping nozzles are arranged on the sweeping main pipe at intervals along the length direction by a preset distance, the sweeping nozzles are connected with the sweeping main pipe through hoses, one side of the sweeping main pipe is provided with a support frame, and a plurality of pipe clamps are connected on the support frame in a sliding manner and used for clamping the sweeping nozzles. Through installing the sweep device at feeder belt return stroke, utilize sweep wind clearance feeder belt return stroke's accumulated coal, accumulated powder, avoid accumulated coal, accumulated powder to cause the feeder belt off tracking, the feeder jam, accidents such as feeder belt damage ensure the safe operation of feeder, reduce the feeder fault rate.
Description
Technical Field
The utility model belongs to the technical field of boiler combustion equipment, and particularly relates to a coal feeder belt return sweeping device of a thermal power plant.
Background
The coal-fired boiler feeder is long-term because of raw coal bunker shed coal or raw coal bunker coal level low causes the easy appearance coal pulverizer release phenomenon of malleation formula pulverizing system, and the buggy flows back and causes the feeder return stroke to have the ponding of ponding coal, thereby leads to the off tracking of feeder belt, and the belt bulge breaks, and the afterbody cylinder of feeder damages, and accidents such as feeder card powder frequently take place, seriously influence unit safety economy operation.
Disclosure of Invention
The utility model aims to provide a coal feeder belt return stroke purging device for a thermal power plant, which is used for cleaning accumulated coal and accumulated powder of a coal feeder belt return stroke, preventing the accumulated coal of the belt return stroke and ensuring the normal operation of the coal feeder.
The technical scheme includes that the coal feeder belt return sweeping device of the thermal power plant comprises a sweeping main pipe transversely arranged above the coal feeder belt, a plurality of sweeping nozzles are arranged on the sweeping main pipe at intervals along the length direction by a preset distance, the head end of the sweeping main pipe is connected with a wind source through a pipeline, and a control valve is arranged on the pipeline.
Preferably, the purging nozzle is connected with the purging main pipe through a hose, a supporting frame is arranged on one side of the purging main pipe, and a plurality of pipe clamps are arranged on the supporting frame and used for clamping the purging nozzle.
Preferably, the pipe clamp is slidingly connected to the support frame.
Preferably, the air outlet of the blowing nozzle is waist-shaped.
Preferably, the purging main is installed at a 800mm belt return gap in front of the tail drum of the coal feeder.
Preferably, the front of the purging main pipe is provided with a scraping plate, the scraping plate is arranged above the coal feeder belt through a bracket, the lower part of the scraping plate is provided with comb teeth, and the bottom ends of the comb teeth are 1-3mm away from the coal feeder belt.
Compared with the prior art, the utility model has the beneficial effects that: the device has the advantages that by matching the blowing wind with the coal feeder, accumulated coal and accumulated powder on the return stroke of the coal feeder belt are cleaned, accumulated coal on the return stroke of the belt is prevented, accumulated powder on the return stroke of the coal feeder can be reduced, the accumulated coal can cause accidents such as deviation of the coal feeder belt, jamming of the coal feeder and damage of the coal feeder belt; the accumulated powder falls into the lower part of the coal feeder, and the cleaned accumulated coal is taken away through the operation of the coal feeder cleaning chain, so that the fault frequency of the coal feeder is reduced, and the safety and the economical efficiency of the unit are improved.
Drawings
FIG. 1 is a top view of the present utility model;
FIG. 2 is a front view of the screed according to the present utility model;
the drawing is marked: 1. the device comprises a purging main pipe, a purging nozzle, a dense belt, a control valve, a hose, a supporting frame, a pipe clamp, a scraper, a supporting frame and a bracket, wherein the purging main pipe is 2, the purging nozzle is 3, the dense belt is 4, the control valve is 5, the hose is 6, the supporting frame is 7, the pipe clamp is 8, the scraper is 9 and the supporting frame.
Detailed Description
The utility model will be further explained in relation to the drawings of the specification, so as to be better understood by those skilled in the art.
Example 1
As shown in fig. 1-2, the belt return purging device for the coal feeder of the thermal power plant comprises a purging main pipe 1, a purging nozzle 2, a control valve 4, a hose 5, a supporting frame 6, a pipe clamp 7 and a scraping plate 8.
The main pipe 1 is arranged at a return clearance of a 800mm belt in front of a tail roller of the coal feeder, is horizontally arranged above the belt 3 of the coal feeder, is provided with 5 purging nozzles 2 along the length direction at a preset distance, the head end of the main pipe 1 is connected with a wind source through a pipeline, and is provided with a control valve 4 for controlling the purging air source.
The support frame 6 sets up in blowing female pipe 1 one side, and sliding connection has a plurality of pipe clamps 7 on its and the support frame 6, blowing nozzle 2 is connected with blowing female pipe 1 through hose 5, and blowing nozzle 2 passes through pipe clamp 7 centre gripping and fixes on support frame 6, and the accessible changes pipe clamp 7 to blowing nozzle 2's centre gripping direction and pipe clamp 7 position adjustment blowing nozzle 2's blowing direction and sweeps the target point, is favorable to cleaning feeder belt 3 pertinently.
The air outlet of the blowing nozzle 2 is waist-shaped, and the middle part of the air outlet is small and the two ends of the air outlet are large, so that the blowing area is increased.
The scraper blade 8 is installed above the feeder belt 3 through the support 9, is located in front of the purging main pipe 1, and is provided with comb teeth at the lower part of the scraper blade 8, the bottom ends of the comb teeth are 1-3mm away from the feeder belt, and accumulated coal and accumulated powder adhered on the feeder belt 3 are scraped through the comb teeth, so that the purging at the rear is thoroughly ensured.
The device can reduce accidents such as powder accumulation on the return stroke of the coal feeder, deviation of the belt 3 of the coal feeder, jamming of the coal feeder, damage of the belt 3 of the coal feeder and the like caused by the powder accumulation; the accumulated powder falls into the lower part of the coal feeder, and the cleaned accumulated coal is taken away through the operation of the coal feeder cleaning chain, so that the fault frequency of the coal feeder is reduced, and the safety and the economical efficiency of the unit are improved.
Finally, it is noted that the above-mentioned embodiments are merely illustrative of the technical solution of the present utility model and not restrictive, and that other modifications and equivalents thereof may be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present utility model, and are intended to be included in the scope of the appended claims.
Claims (6)
1. The utility model provides a thermal power factory feeder belt return stroke sweeps device, its characterized in that, including transversely arranging in purging main pipe (1) of feeder belt (3) top, set up a plurality of on the purging main pipe (1) along length direction interval preset distance and sweep nozzle (2), sweep main pipe (1) head end and pass through the pipeline and connect the wind regime, be equipped with control valve (4) on the pipeline.
2. The coal feeder belt return sweeping device of a thermal power plant according to claim 1, wherein the sweeping nozzle (2) is connected with a sweeping main pipe (1) through a hose (5), a supporting frame (6) is arranged on one side of the sweeping main pipe (1), and a plurality of pipe clamps (7) are arranged on the supporting frame (6) and used for clamping the sweeping nozzle (2).
3. A coal feeder belt return sweep apparatus as claimed in claim 2, characterized in that the pipe clamp (7) is slidingly connected with the support frame (6).
4. The coal feeder belt return sweeping device of a thermal power plant according to claim 1, wherein an air outlet of the sweeping nozzle (2) is kidney-shaped.
5. A coal feeder belt return stroke purging device for a thermal power plant as claimed in claim 1 wherein said purging main (1) is mounted at 800mm belt return stroke gap in front of the tail drum of the coal feeder.
6. The coal feeder belt return sweeping device of a thermal power plant according to claim 1, wherein a scraping plate (8) is arranged in front of the sweeping main pipe (1), the scraping plate (8) is arranged above the coal feeder belt (3) through a support (9), comb teeth are arranged at the lower portion of the scraping plate (8), and the bottom ends of the comb teeth are 1-3mm away from the coal feeder belt (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320272504.3U CN219525302U (en) | 2023-02-21 | 2023-02-21 | Coal feeder belt return stroke purging device of thermal power factory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320272504.3U CN219525302U (en) | 2023-02-21 | 2023-02-21 | Coal feeder belt return stroke purging device of thermal power factory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219525302U true CN219525302U (en) | 2023-08-15 |
Family
ID=87632113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320272504.3U Active CN219525302U (en) | 2023-02-21 | 2023-02-21 | Coal feeder belt return stroke purging device of thermal power factory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219525302U (en) |
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2023
- 2023-02-21 CN CN202320272504.3U patent/CN219525302U/en active Active
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