Dry fog dust suppression system of ship unloader

Abstract

The invention discloses a dry fog dust suppression system of a ship unloader. The dry fog dust suppression system comprises an air compressor, a dry fog machine, a water gas distributor and a spray box assembly. According to the system, the fine water mist particles with the particle size smaller than 10 microns of each dust suppression point of the ship unloader are sprayed, so that the water mist and the dust particles are mutually congealed and then settle under the action of self gravity to achieve the dust suppression purpose, the system is suitable for dust control of the semi-closed ship unloader, high in dust suppression efficiency, beneficial to energy conservation and emission reduction and capable of completely eradicating environmental pollution.

Description

technical field [0001] The invention belongs to the environmental protection treatment technology of seaports and wharves, in particular to a system for suppressing dust generated during the working process of a ship unloader. Background technique [0002] When the bridge-type grab ship unloader is used in the seaport terminal, a large amount of dust is generated during the loading, unloading and conveying process of the material. Induce the airflow, induce the dust generated by the material to overflow along the gap in the chute and the material guide trough, and fly into the transfer station. [0003] Reason 1: When the bridge type ship unloader is in operation, the coal material falls from the grab bucket to the drop hopper, and the falling of the material causes the surrounding air to be disturbed. When the disturbed air flow is in motion, it will drive the small particle materials to fly and generate dust; coal material When falling into the silo, the potential energy ...

AI Technical Summary

Problems solved by technology

[0005] The third reason for dust generation: through the buffer bin and the discharge tee chute, it falls into the material guide chute of the conveyor belt conveyor. As the material falls into the belt conveyor chute in the chute, the potential energy of the material is released, and the gap between the material and the material, between the material and the chute, The frequent collision and friction between the material and the wall of the guide trough will generate a large amount of dust. In the case of poor sealing of the guide trough, the dust will scatter and overflow along the interface between the guide trough and the belt conveyor

[0006] The traditional wharf operation site is an unorganized discharge, and the use of dry dust removal cannot form a negative pressure condition on the site, and cannot effectively collect and suppress dust; while traditional wet dust removal (water spray, etc.) cannot treat the dust due to large water particles. Fine coal dust particles (especially respirable coal dust) are effectively adsorbed, condensed and settled

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