Rapid dust removal system and rapid dust removal method for tunnel

Abstract

The invention discloses a rapid dust removal system for a tunnel. The system comprises a booster pump, a spray dedusting device and a pipeline, wherein the pipeline is connected with the booster pumpand the spray dedusting device; the spray dedusting device comprises a plurality of groups of atomization dedusting nozzles facing the axis of the tunnel and a high-power atomization dust remover acting on the tunnel face, the atomization dedusting nozzles are connected with the pipeline through a tee joint or an elbow, and the atomization dedusting nozzles can atomize compressed air and water flow and then spray the atomized air and water flow to the axis of the tunnel to form a three-dimensional atomization water curtain wall; and the high-power atomization dust remover is connected with thepipeline through a tee joint, can swing left and right in a horizontal direction, atomizes compressed air and water flow and then sprays the atomized air and water flow out to form an atomization water curtain covering space between the atomization water curtain wall and the tunnel face. The water curtain can quickly capture a large amount of tiny dust generated by a drilling and blasting method;and after water drop particles capture the tiny dust, settling is realized due to increase of self-weight, so the tiny dust difficult to remove quickly in the tunnel is removed. The invention furtherdiscloses a rapid dust removal method for the tunnel.

Description

Background technique [0001] The drill and blast method is a method of excavating rock by drilling, charging, and blasting. It is a common method for tunneling. After drilling and blasting blasting, a large amount of gun smoke will be produced, containing fine particles and harmful gases. Only when the particles and harmful gases are reduced to a reasonable level can construction personnel enter the construction. As the tunnel deepens, ventilation and smoke exhaust will be very difficult. Therefore, the efficiency of ventilation and smoke exhaust also affects the speed of tunneling. [0002] Commonly used dust suppression methods are: 1. Use high-power ventilators and large-diameter ventilation pipes to adopt press-in ventilation. The ventilation pipes are usually hung on the vault, and use ventilation to reduce the blast dust and harmful gases in the tunnel to the level that employees can enter. Concentration, as the tunnel deepens, ventilation and dust removal will become mo...

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a device that can quickly limit the smoke and dust generated during detonation within a certain range and quickly remove it, thereby achieving extremely high dust removal efficiency and solving the problem of equipment damage caused by flying stones during detonation. problem, the object of the present invention also includes providing a method for quickly removing a large amount of fine dust produced by tunnel drilling and blasting

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