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Tunnel blasting smoke emission device

A tunnel and buffer device technology, applied in the field of blasting engineering auxiliary devices, can solve problems such as affecting the health and safety of construction workers, affecting construction work efficiency, etc., and achieve the effects of shortening the ventilation and smoke dissipation time, ensuring health and safety, and quickly dispersing smoke.

Pending Publication Date: 2019-11-05
POWERCHINA CHENGDU ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it takes nearly an hour to ventilate and disperse smoke after tunnel blasting. For long, large and deeply buried tunnels, it will be even longer, seriously affecting the efficiency of construction operations. Failure to meet the standard of ventilating and dispersing smoke will seriously affect the health and safety of construction workers.

Method used

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  • Tunnel blasting smoke emission device
  • Tunnel blasting smoke emission device
  • Tunnel blasting smoke emission device

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Embodiment Construction

[0019] In order to facilitate the understanding and implementation of the present invention, the preferred embodiments of the present invention are selected for further description in conjunction with the accompanying drawings.

[0020] Such as Figure 1 to Figure 5 As shown, the present invention includes a fixed partition 1 and a movable partition 2, the shape specifications of the fixed partition 1 and the movable partition 2 are all compatible with the section shape specification of the tunnel 3, the fixed partition 1 and the movable partition 2 are Arranged on the same central axis, the movable partition 2 is equipped with a guide rail 4, so that the movable partition 2 can reciprocate along the guide rail 4, the length direction of the guide rail 4 is set along the thickness direction of the movable partition 2, the movable partition 2 and the fixed There is a buffer device 5 between the partitions 1, a smoke exhaust hole 6 is opened on the fixed partition 1, and a valve...

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Abstract

The invention relates to a tunnel blasting smoke emission device and belongs to the technical field of blasting engineering auxiliary devices. The tunnel blasting smoke emission device comprises a fixed partition board and a movable partition board. The shapes and specifications of the fixed partition board and the movable partition board are matched with the shape and specification of the cross section of a tunnel. The fixed partition board and the movable partition board are arranged along the same central axis. Guide rails are arranged to be matched with the movable partition board so thatthe movable partition board can do reciprocating motion along the guide rails. The length direction of the guide rails is consistent with the thickness direction of the movable partition board. Damping devices are arranged between the movable partition board and the fixed partition board. The fixed partition board is provided with a smoke discharge hole. A valve is arranged in the smoke dischargehole in a matched mode. A smoke discharge pipe joint is arranged at the end, far away from the movable partition board, of the smoke discharge hole. The tunnel blasting smoke emission device centralizes smoke and dust generated after blasting in a certain space without emission firstly, extracts the smoke and dust out through a suction type draught fan in a centralized mode to achieve the purposeof quick smoke emission and can shorten the ventilation and smoke emission time after blasting and ensure the health and safety of site construction personnel.

Description

technical field [0001] The invention relates to a smoke diffuser for tunnel blasting, belonging to the technical field of blasting engineering auxiliary devices. Background technique [0002] The underground project of the hydropower station includes a complex group of caverns composed of main powerhouse, main transformer room, water diversion tunnel, tailwater tunnel, busway tunnel, traffic tunnel and many other caverns. The caverns are criss-crossed and densely arranged, and the construction links are coordinated and interacted with each other. . In the process of tunnel blasting construction, drilling and blasting will produce a large amount of dust and blasting smoke. After blasting, fresh air must be injected into the hole to discharge the dust and smoke in the hole to the outside of the hole, and the dust and smoke in the hole will be diluted to a certain concentration. After that, construction workers can enter the tunnel for slag extraction. At present, it takes ne...

Claims

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Application Information

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IPC IPC(8): F42D1/00F42D3/04
CPCF42D1/00F42D3/04
Inventor 钟权夏欣
Owner POWERCHINA CHENGDU ENG
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