Self-rotating blowing type ash removal device for observation window of coal feeder

A technology of cleaning device and observation window, which is applied in the direction of cleaning methods and appliances, cleaning methods using gas flow, chemical instruments and methods, etc., which can solve the problems of affecting the normal operation of the unit to generate electricity, delaying the timing of troubleshooting, and losing the coal feeder Monitoring functions and other issues, to achieve ideal cleaning effect, improve reliability, and simple structure

Pending Publication Date: 2022-01-25
华能汕头海门发电有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor internal environment of the coal feeder, it is easy to produce powder accumulation. After frequent rotation of the scraper for cleaning, it is easy to cause the scraper blade to jam or even be damaged. As a result, the powder accumulation near the observation glass cannot be cleaned in time, and the monitoring function of the inside of the coal feeder is lost. , to delay the timing of troubleshooting, it is necessary to stop the coal feeder for inspection and treatment
In addition, due to the limitation of the length of the scraper blade, the window sill connected to the observation window is an area that cannot be cleaned by the scraper blade, and the accumulation of coal dust will affect the observation. After the coal dust accumulates to a certain extent, it will affect the rotation of the scraper blade, and it is necessary to stop. The coal feeder was transported for cleaning, and the coal feeder was shut down due to minor problems, which affected the normal operation of the unit and caused a certain degree of economic loss
Moreover, in daily use, it is necessary to intermittently rotate the scraping teeth or hairs of the scraping blade to clean and replace the powder accumulation, so as to maintain a good cleanliness on the inner surface of the observation window glass, which requires a waste of manpower and material resources during operation, and the equipment structure is easy Damaged, often requires maintenance, short lifespan

Method used

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  • Self-rotating blowing type ash removal device for observation window of coal feeder
  • Self-rotating blowing type ash removal device for observation window of coal feeder
  • Self-rotating blowing type ash removal device for observation window of coal feeder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Example 1 - connection purge treatment:

[0061] Such as Figure 2-5 As shown, when assembling the self-rotation purge type dust cleaning device, the connecting wall of the self-rotation purge part 5 of the present invention and the outer connection wall of the rotation connection part 8 are interference fit, and the connection of the self-rotation purge part 5 There is a snap ring installation groove 24 above the wall, and a snap ring 22 is horizontally arranged in the snap ring installation groove 24. The lower end surface of the snap ring 22 is pressed against the outer upper end surface of the rotating connection part 8, and the snap ring 22 It can further improve the fixing effect of the connection position between the rotation purge part 5 and the rotation connection part 8, and effectively avoid the displacement or loosening of the rotation purge part 5 due to the force of the airflow during the blowing process, so The outer wall of the purging connecting shaft ...

Embodiment 2

[0069] Such as Figure 8-11 As shown, this embodiment is similar to Embodiment 1, the difference is that in this embodiment, as Figure 8 As shown, when connecting the self-rotating purge mechanism and the air supply mechanism, it is only necessary to set up a sealed air supply branch pipe 14, install the control valve 13 on the sealed air supply branch pipe 14, and install the control valve 13 on the sealed air supply branch pipe 14. The front end is connected with a multi-port branching pipe 20, and the front end of the multi-port branching pipe 20 is provided with four branching nozzles 28, and the branching nozzles 28 of the multi-port branching pipe 20 are connected with the air inlet end of the air supply conduit 12, through the locking part 21 After the locking and fixing operation is completed, the locking collar 26 is set on the outer wall of the air supply conduit 12, and then the locking blocks 29 at both ends of the locking collar are locked by the locking connecti...

Embodiment 3

[0072] Embodiment 3 - Overhaul and maintenance treatment:

[0073] Such as Figure 1-2 As shown, when the device is shut down or used for a long time, it is necessary to disassemble and repair the coal feeder observation window of the present invention when the self-rotating purge type ash removal device. First close all the control valves 13, then loosen the locking part 21, then open the observation window, take out the upper sealing fastening ring 15, pull out the self-rotating purge mechanism from the bottom of the observation glass 2, and then clean up or replace.

[0074] In the present invention, the air supply conduit 12 is preferably made of a translucent hose. During the air supply process, the operator can intuitively observe the internal circulation of the air supply conduit 12. Once a blockage occurs, it can be quickly closed and cleared.

[0075] Through the self-rotating purge type ash cleaning device of the present invention, when the coal feeder is shut down...

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PUM

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Abstract

The invention discloses a self-rotating blowing type ash removal device for an observation window of a coal feeder. The device comprises a self-rotating blowing mechanism and a regulation and control air supply mechanism, the self-rotating blowing mechanism is rotatably arranged in the center of observation glass and comprises a blowing connecting shaft and a self-rotating blowing part, the self-rotating blowing part is rotatably connected with the blowing end of the blowing connecting shaft by arranging a rotating connecting part, an air guide cavity is formed in the center of the self-rotating blowing part, arc-shaped blowing guide holes are evenly distributed in the outer side of the air guide cavity, and the regulation and control air supply mechanism comprises an air supply guide pipe and a regulation and control valve. The device has the beneficial effects that the designed self-rotating blowing mechanism is combined with the regulation and control air supply mechanism, so that the powder accumulation probability in the observation window is almost zero, the coal feeder does not need to be stopped due to the powder accumulation problem or the damage of a scraping strip, and the loss of power generation in a plant caused by stopping the coal feeder due to small defects is effectively reduced. The device is reasonable in design structure, convenient to disassemble and assemble, low in maintenance amount and long in service life.

Description

technical field [0001] The invention belongs to the technical field of cleaning equipment for the observation window of a coal feeder, and more specifically, relates to a self-rotating purge type ash cleaning device for the observation window of a coal feeder. Background technique [0002] In order to facilitate the observation of the internal operation of the coal feeder, an observation window is designed on the front and rear door panels of the coal feeder. Since coal ash and pulverized coal will be generated when the coal feeder is conveying coal, due to the positive pressure inside the coal feeder, the Coal powder will inevitably be raised during coal powder, and coal powder will adhere to the glass surface of the observation window, which will affect the observation. The center of the existing observation window will be equipped with a manually rotatable scraper cleaner. There is fluff attached to the glass surface of the observation window, and the fluff attached to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B5/02B08B13/00
CPCB08B5/02B08B13/00
Inventor 陈仲浩蔡国忠黄旭鹏张家宽陈伟武陈韶华胡木林史义明夏晓婷陈铁军刘佳利聂庚辛梁瑞峰陈旻陈明光唐一多陈泽鑫
Owner 华能汕头海门发电有限责任公司
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