Movable and adjustable blasting bunker device

Abstract

The invention relates to the technical field of mine protection bunkers, in particular to a movable and adjustable blasting bunker device. The movable and adjustable blasting bunker device comprises abunker body, the bottom of the bunker body is welded to a middle section top of a bearing guiding assembly, the bearing guiding assembly is used for movably discharging force after suffered from impact force, the bunker body is made of an alloy steel material and is an arc-shaped segment body curved surface with the forward-protruding middle, and a main gripping ring is welded to the middle innerwall of the arc-shaped segment body curved surface. Safety protection can be effectively conducted on current workers, the protection property is good, the movable and adjustable blasting bunker device can move to reduce the impact force of sandstone after impacted severely by the sandstone, the front end of a whole bunker adopts the design of an arc-shaped spherical metal structure, thus the intensity of protection from the sandstone can be effectively improved, the workers can effectively grip the bunker inside the bunker, and stability of the workers inside is improved.

Description

technical field [0001] The invention relates to the technical field of mine protection shelters, in particular to a mobile adjustable blasting shelter device. Background technique [0002] In the process of underground coal mining, if hard rocks are encountered and the fully-mechanized excavator cannot dig, it is necessary to fire blasts to continue excavation and mining. Generally, blasting is required under the following working conditions in the process of coal mining. and blasting mining treatment: 1. blasting mining face; 2. blasting roadway; 3. renovation of roadway with special structure; The coal seam layout roadway encounters fault rocks, and the cutting head of the roadheader is not damaged, and the rock excavation method is also used. The coal mine needs to build special structures (coal bunkers) or small roadways. [0003] In summary, blast mining is a relatively important mining method in the process of underground mining. Due to the particularity of the underg...

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Problems solved by technology

[0003] In summary, blast mining is a relatively important mining method in the process of underground mining. Due to the particularity of the underground environment and the ground conditions, strong vibrations in the process of blast mining will cause sand and gravel to splash around. , In a few cases, there will be a large test block flying down, so when the staff is performing blasting in the working environment, there will still be accidents of flying stones hurting people outside the safe distance, especially when the inspectors are inspecting forward. Considering the safety hazards of underground construction, the staff of our mine designed a mobile adjustable blasting bunker after a long period of practice and research to solve the existing safety hazards.

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