Profile coal screening closed-conveying and reusing device

Abstract

Disclosed is a profile coal screening closed-conveying and reusing device. The profile coal screening closed-conveying and reusing device comprises a vibrating screen. A coal belt conveyor is arranged at a lower end outlet of the vibrating screen. A first pulverized coal collecting hopper is arranged below a screen net of the vibrating screen. An electric plow type unloader is installed on the coal belt conveyor. A material bin corresponding to the electric plow type unloader is arranged below the coal belt conveyor. A slide sieve is connected to an outlet of the material bin. A gate valve is installed in the connection position of the material bin and the slide sieve. A second pulverized coal collecting hopper is arranged below a sieve net of the slide sieve. An outlet of the first pulverized coal collecting hopper and an outlet of the second pulverized coal collecting hopper are both connected to a buried scraper conveyer. After profile coal is subjected to double graded screening of the vibrating screen and the slide sieve, pulverized coal is conveyed to a profile coal production line to be reused in a closed step mode through the buried scraper conveyer, so that the cost is reduced, and the utilization ratio of the profile coal is increased.

Description

technical field [0001] The invention relates to the field of fixed-bed shaped coal gas production, in particular to a device for screening, airtight, transporting and reusing shaped coal. Background technique [0002] At present, the synthetic ammonia production industry uses briquette as raw material, and the raw material gas for synthetic ammonia is produced through a fixed-layer gas furnace. The screened pulverized coal enters the gas furnace, which has different degrees of influence on the resistance, carry-over, consumption, etc. of the gas furnace. In addition, the powdered coal of the vibrating screen needs to be transferred to the briquette production device by multiple motor vehicles for reuse. During the transfer process, there is a lot of dust, the site environment is poor, the motor vehicles wear and consume a lot, and the maintenance costs are high. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a ...

AI Technical Summary

Problems solved by technology

In addition, the powdered coal of the vibrating screen needs to be transferred to the briquette production device by multiple motor vehicles for reuse. During the transfer process, there is a lot of dust, the site environment is poor, the motor vehicles wear and consume a lot, and the maintenance costs are high.

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