CN-224222119-U - Automatic cleaning device based on compressed air drive

CN224222119UCN 224222119 UCN224222119 UCN 224222119UCN-224222119-U

Abstract

The utility model provides an automatic cleaning device based on compressed air driving, and relates to the field of gypsum treatment equipment of a thermal power plant. The device comprises a compressed air storage tank system, a scraper cleaning device, a material monitoring system and a control unit. The compressed air storage tank system provides power, the scraper cleaning device comprises a reciprocating cylinder, a heavy flashboard with a trapezoid groove and a transmission assembly, the material monitoring system monitors the gypsum stacking height in real time through a microwave level gauge, the control unit is linked with the material monitoring and cleaning action, and when the stacking height is more than or equal to 6000mm and lasts for 10 seconds, the scraper is triggered to execute three reciprocating scraping at the speed of 0.5m/s, and the height is automatically reset after the height is reduced below a threshold value. The device realizes the automation of gypsum cleaning, improves the cleaning efficiency, replaces manual work and forklift operation, reduces the safety risk, ensures the stable operation of a gypsum dewatering system of a thermal power plant, and has remarkable practical value.

Inventors

CHEN QUANHUA
WANG YUANJUN
FANG MENG
REN CHENWEI
ZHANG JIADI
DU HONGJI

Assignees

湖北能源集团鄂州发电有限公司

Dates

Publication Date: 20260512
Application Date: 20250722

Claims (10)

1. Automatic cleaning device based on compressed air drive, characterized by comprising: the compressed air storage tank system is arranged at the side of the driving end of the belt conveyor and used for providing a power source; The scraper cleaning device is arranged below the bearing section belt conveyor and comprises a reciprocating cylinder, a heavy flashboard and a transmission assembly, wherein the reciprocating cylinder drives the heavy flashboard to perform horizontal directional cleaning through the transmission assembly; the material monitoring system adopts a microwave material level gauge, comprises a material level gauge, a high material level measuring point and a low material level measuring point, and is used for monitoring the gypsum accumulation height in real time; And the control unit is linked with the material monitoring system and the scraper cleaning device and is used for controlling the cleaning action and supporting remote centralized regulation and control.
2. The automatic cleaning device based on compressed air driving of claim 1, wherein the transmission assembly comprises a telescopic shaft, a gate roller, a roller connecting shaft and a roller track, the reciprocating cylinder is connected with the heavy gate through the telescopic shaft, the gate rollers are arranged on two sides of the heavy gate, the gate rollers are connected through the roller connecting shaft, and the gate rollers can move along the roller track.
3. An automatic cleaning device based on compressed air driving as claimed in claim 1, wherein the air storage tank of the compressed air storage tank system has a volume of 1m3 and a pressure of 0.8Mpa.
4. An automatic cleaning device based on compressed air driving according to claim 1, wherein the stroke of the reciprocating cylinder is 2000mm.
5. The automatic cleaning device based on compressed air driving according to claim 1, wherein the heavy-duty flashboard is provided with a trapezoid groove, the thickness of the upper bottom of the trapezoid groove is 3mm, and the thickness of the lower bottom of the trapezoid groove is 5mm.
6. The automatic cleaning device based on compressed air driving according to claim 1, wherein the control unit is configured to control the scraper cleaning device to start when the material monitoring system detects that the gypsum accumulation height H is equal to or greater than 6000mm and lasts for 10 seconds, and control the scraper cleaning device to reset to stand by when the gypsum accumulation height H is detected to be less than 6000 mm.
7. The automatic cleaning device based on compressed air driving according to claim 1, wherein after the scraper cleaning device is started, the reciprocating cylinder drives the heavy flashboard to execute three reciprocating scrapes at a speed of 0.5m/s, so that gypsum is caused to slide to the storage areas on two sides along the inclined plane.
8. The automatic cleaning device based on compressed air driving according to claim 1, wherein the microwave level gauge of the material monitoring system is installed beside a gypsum dewatering belt conveyor, and a high level measuring point and a low level measuring point are arranged corresponding to a gypsum accumulation area.
9. The automatic cleaning device based on compressed air driving according to claim 1, wherein the control unit comprises a PLC controller and a remote control module, the PLC controller is respectively electrically connected with the material monitoring system and the reciprocating cylinder, and the remote control module supports remote monitoring and operation of a central control room.
10. The automatic cleaning device based on compressed air driving as claimed in claim 1, wherein the compressed air storage tank system is connected with the reciprocating cylinder through a high-pressure air pipe, and a pressure regulating valve is arranged on the air pipe.

Description

Automatic cleaning device based on compressed air drive Technical Field The utility model relates to the technical field of auxiliary equipment of gypsum dewatering systems, in particular to an automatic cleaning device based on compressed air driving. Background In the gypsum discharge area of the gypsum dewatering system of the thermal power plant, when the chloride ion content in the gypsum slurry exceeds 20,000mg/L on a dry basis, the physical property of the gypsum slurry is obviously changed, namely, the free water content on the surface is higher than 10%, the slurry is in an abnormal viscous state, the rheological property is changed, the water content is obviously increased, and the adhesion coefficient is increased. In this case, the gypsum may be abnormally piled up during the discharging process, vertically piled up instead of being slipped off at both sides normally. When the stacking height exceeds the plugging port and continues to rise, the gypsum dehydration belt conveyor is jacked up to prevent the normal operation of the gypsum dehydration belt conveyor, and when the stacking height exceeds the plugging port, the mechanical deviation of the dehydration belt can be caused to cause overload tripping of the belt conveyor to influence the continuous production of a thermal power plant. The existing cleaning scheme has obvious defects: the forklift cleaning scheme is characterized in that the forklift needs to work at night, is limited by personnel work and equipment preparation, cannot guarantee continuity and interfere normal production, and is high in vertical gypsum stacking rate and easy to influence the stability of a unit. Under special working conditions such as rainy and snowy weather, the manual intervention scheme has the problems that due to high-strength repeated operation, easy slipping of a wet and slippery environment, mechanical entanglement, extreme weather or incapability of timely treatment at night, the operator uses the long-handle scraper to laterally dredge, and the efficiency is extremely low, the safety risk is high, the response is lag and the like. Disclosure of utility model Aiming at the defects existing in the prior art, the utility model provides an automatic cleaning device based on compressed air driving, which solves the systematic defects that the prior art lacks a device capable of realizing automatic, continuous and efficient cleaning at the initial stage of gypsum accumulation, so that a system is continuously faced with the risks of blockage, belt deviation and tripping, and the system has low efficiency, high cost, large potential safety hazard and the like. In order to achieve the above purpose, the present utility model adopts the following technical scheme: An automatic cleaning device based on compressed air drive, comprising: the compressed air storage tank system is arranged at the side of the driving end of the belt conveyor and used for providing a power source; The scraper cleaning device is arranged below the bearing section belt conveyor and comprises a reciprocating cylinder, a heavy flashboard and a transmission assembly, wherein the reciprocating cylinder drives the heavy flashboard to perform horizontal directional cleaning through the transmission assembly; the material monitoring system adopts a microwave material level gauge, comprises a material level gauge, a high material level measuring point and a low material level measuring point, and is used for monitoring the gypsum accumulation height in real time; And the control unit is linked with the material monitoring system and the scraper cleaning device and is used for controlling the cleaning action and supporting remote centralized regulation and control. Still further, drive assembly includes telescopic shaft, flashboard gyro wheel, gyro wheel connecting axle and gyro wheel track, reciprocating type cylinder passes through the telescopic shaft and connects heavy flashboard, heavy flashboard both sides set up the flashboard gyro wheel, the flashboard gyro wheel passes through the gyro wheel connecting axle and connects, just the flashboard gyro wheel can follow gyro wheel track movement. Furthermore, the air storage tank volume of the compressed air storage tank system is 1m3, and the pressure is 0.8Mpa. Further, the stroke of the reciprocating cylinder is 2000mm. Further, the heavy flashboard is provided with a trapezoid groove, the thickness of the upper bottom of the trapezoid groove is 3mm, and the thickness of the lower bottom of the trapezoid groove is 5mm. Further, the control unit is configured to control the scraper cleaning device to start when the material monitoring system detects that the gypsum stacking height H is larger than or equal to 6000mm and lasts for 10 seconds, and to control the scraper cleaning device to reset for standby when the gypsum stacking height H is smaller than 6000 mm. Further, after the scraper cleaning device is started, the reciprocating cyli