CN-224226018-U - Automatic cleaning device for blanking of coal conveying belt conveyor

Abstract

The application discloses an automatic blanking cleaning device of a coal conveying belt machine, which comprises a return belt machine arranged below the coal conveying belt machine, wherein one side of the return belt machine penetrates into a blanking pipe of the coal conveying belt machine, and the blanking after the coal conveying belt rotates is conveyed into the blanking pipe to be mixed with coal conveyed by the coal conveying belt. The automatic falling coal material collecting and conveying device has the advantages that the automatic falling coal material collecting and conveying device can collect and convey the automatic falling coal material through the feed back belt, the problem that the existing working procedure needs to be manually cleaned is solved, meanwhile, the pollution of dust to the production environment in the cleaning process can be reduced, the potential safety hazard of dust is avoided, labor is liberated, and the production cost is reduced. The coal material adhered to the coal conveying belt is scraped in a mechanical mode through the scraping plate, so that the problem that the normal coal conveying flow is affected due to the fact that the adhesive thickness of the adhered coal material on the coal conveying belt is gradually increased is solved.

Inventors

• YANG JIANHUI
• SUN XI
• HE YUNWEI

Assignees

• 陕西能源麟北发电有限公司

Dates

Publication Date

20260512

Application Date

20250606

Claims (4)

1. 1. The automatic cleaning device for the blanking of the coal conveying belt machine is characterized by comprising a feed back belt machine arranged below the coal conveying belt machine and an automatic scraping device arranged at a blanking end of the coal conveying belt machine, wherein one side of the feed back belt machine penetrates into a blanking pipe of the coal conveying belt machine, blanking after the coal conveying belt rotates is conveyed into the blanking pipe to be mixed with coal conveyed by the coal conveying belt, the automatic scraping device comprises a supporting rod arranged on a supporting frame of the coal conveying belt machine, a scraping plate is arranged at the end part of the supporting rod, the top end of the scraping plate abuts against the coal conveying belt, and the coal adhered on the scraping plate is scraped in the rotation process of the coal conveying belt and falls into the blanking pipe along the scraping plate.
2. 2. The cleaning apparatus according to claim 1, wherein the scraper is elastic and has a tip thereof abutting against the belt.
3. 3. The cleaning device of claim 2, wherein the scraper is hinged to the end of the support rod, and a torsion spring is arranged at the hinge to urge the scraper to tightly contact with the surface of the coal conveyor belt.
4. 4. The cleaning device of claim 3, wherein the scraper is of an arc-shaped structure, the top end of the scraper forms an acute angle structure with the coal conveyor belt after being tightly abutted, and the bottom end of the scraper is close to the inner wall of the blanking pipe.

Description

Automatic cleaning device for blanking of coal conveying belt conveyor Technical Field The application relates to the technical field of coal transportation, in particular to an automatic blanking cleaning device of a coal conveying belt conveyor. Background At present, fuel of a coal-fired power generating unit is conveyed through a belt conveyor as main equipment for bulk material conveying, a large amount of coal dust is adhered to a belt working surface in the coal-fired conveying process, a traditional polyurethane sweeper cannot be used for thoroughly cleaning, the belt falls on the ground in high-speed friction with a roller in a large amount, the production environment is polluted, a large amount of coal dust is accumulated, cleaning staff is required for cleaning, the labor intensity is increased, and hidden danger is buried for safe operation of the belt conveyor. Meanwhile, sundries mixed with ground dust in the cleaned coal are added into the combustion system again, so that the normal combustion of the coal is influenced. Disclosure of Invention Aiming at the problems, the application aims to provide the automatic blanking cleaning device for the coal conveying belt conveyor, which can collect and transmit the coal falling automatically, solve the problems of the existing working procedures needing manual cleaning, reduce the pollution of dust to the production environment in the cleaning process, eliminate the natural potential safety hazard of dust, liberate labor force and reduce the production cost. The automatic cleaning device for the blanking of the coal conveying belt machine comprises a feed back belt machine arranged below the coal conveying belt machine and an automatic scraping device arranged at the blanking end of the coal conveying belt machine, wherein one side of the feed back belt machine penetrates into a blanking pipe of the coal conveying belt machine, the blanking after the coal conveying belt is rotated is conveyed into the blanking pipe to be mixed with the coal conveyed by the coal conveying belt, the automatic scraping device comprises a supporting rod arranged on a supporting frame of the coal conveying belt machine, a scraping plate is arranged at the end part of the supporting rod, the top end of the scraping plate abuts against the coal conveying belt, and the coal adhered on the scraping plate is scraped in the rotation process of the coal conveying belt and falls into the blanking pipe along the scraping plate. Preferably, the scraper has elasticity, so that the top end of the scraper is tightly abutted against the coal conveying belt. Preferably, the scraping plate is hinged to the end part of the supporting rod, and a torsion spring for driving the scraping plate to tightly abut against the surface of the coal conveying belt is arranged at the hinged part. Preferably, the scraping plate is of an arc-shaped structure, so that an acute angle structure is formed after the top end of the scraping plate is tightly abutted against the coal conveying belt, and the bottom end of the scraping plate is close to the inner wall of the blanking pipe. The application has the beneficial effects that the self-falling coal can be collected and transmitted through the feed back belt, the working procedures existing in the prior art that manual cleaning is needed are solved, meanwhile, the pollution of dust to the production environment in the cleaning process can be reduced, the natural potential safety hazard of dust is avoided, the labor force is liberated, and the production cost is reduced. The coal material adhered to the coal conveying belt is scraped in a mechanical mode through the scraping plate, so that the problem that the normal coal conveying flow is affected due to the fact that the adhesive thickness of the adhered coal material on the coal conveying belt is gradually increased is solved. Drawings FIG. 1 is a bottom blanking diagram of a conventional coal conveyor belt for conveying coal. FIG. 2 is a diagram of a coal conveyor belt with a return belt disposed at the bottom of the belt. FIG. 3 is a diagram of a scraper plate which is arranged on a supporting frame and is propped against a coal conveying belt. FIG. 4 is a drawing showing the scraping of coal adhering to a belt by a scraper according to the present application. FIG. 5 is a diagram showing the running jump of the coal conveyor belt during the revolution. FIG. 6 shows the upward deflection of the scraper against the belt by the torsion spring when the belt is jumping upward. FIG. 7 is a graph showing the force of the torsion spring against the downward pressing scraper when the coal conveyor belt of the present application is jumping downward. FIG. 8 is a view of coal provided with scrapers of arcuate configuration to avoid dropping. In the figure, the device comprises a 1-coal conveying belt conveyor, a 11-coal conveying belt, a 2-rotary roller, a 3-supporting frame, a 4-dust cover, a 5-blanking pipe,