Micron-grade dry mist dust suppression device for belt conveyor

Abstract

The invention discloses a micron-grade dry mist dust suppression device for a belt conveyor. The micron-grade dry mist dust suppression device comprises a micron-grade dry mist machine, a water-gas distributor and a dry mist box assembly. A water pumping pipe and an air compressor are arranged to supply water and air to the micron-grade dry mist machine. The micron-grade dry mist machine sets the air pressure, the air flow, the water pressure and the water flow after filtering supplied air and water and controls to open and close a valve, and the air and water are conveyed to the water-gas distributor through pipelines. The dry mist box assembly comprises a sealing cover and a plurality of universal spray nozzles arranged inside the sealing cover. The sealing cover is arranged at a powder transfer point of a conveying path of the belt conveyor. The water-gas distributor is connected with all the universal spray nozzles through pipelines and lines and controls sprayed mist and diversion of all the universal spray nozzles through a programmable logic controller (PLC) according to the operation condition. The diameter of mist particles sprayed by the micron-grade dry mist dust suppression device is 1-10 micrometers, raise dust generated in the conveying process of coal ash of coal fields can be well treated, the site environment cleanliness is guaranteed, and the physical health of on-site workers is guaranteed.

Description

technical field [0001] The invention relates to environmental protection facilities, in particular to a micron-level dry fog dust suppression device for belt conveyors. Background technique [0002] During the material transfer process, induced airflow is generated in the discharge chute and the material guide trough of the receiving belt conveyor due to the drop, and the dust generated by the induced material overflows along the gaps in the chute and material guide trough, and is scattered into the transfer station. [0003] The first reason for dust generation: when the belt conveyor is working, the material falls from the head of the belt conveyor, causing a disturbed airflow inside the chute, and the small particle materials are raised under the action of the airflow to generate dust; The collision between the chutes intensifies the generation of dust; under the action of the disturbed air flow, the dust is scattered and overflows along the gap between the belt conveyor ...

AI Technical Summary

Problems solved by technology

[0004] The second reason for dusting: the material conveyed by the belt conveyor falls into the downstream belt conveyor along the chute. Due to the release of the potential energy of the falling material, the material rebounds after falling, and continuously collides with the subsequent falling material. At the same time, the falling material After the materials collide with each other, the materials scatter irregularly (disorganized) around, and rebound after colliding with the chute wall, which intensifies the dust generated by the materials on the belt conveyor; due to the continuous falling of the materials, positive pressure air is generated inside the guide trough , to induce dust to fly along the gap of the guide groove

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