Three-section multistage spraying dust reducing system for tunnel dust

Abstract

The invention discloses a three-section multistage spraying dust reducing system for tunnel dust. The dust reducing system is composed of multiple spraying devices identical in structure. Each spraying device comprises a water conveying pipeline, and the water conveying pipelines of the multiple spraying devices are connected with a main water conveying pipe. The main water conveying pipe is connected with a vertical galvanization water pipe, and the top of the vertical galvanization water pipe is connected with a horizontal galvanization water pipe. Multiple tee joints are arranged on the vertical galvanization water pipe and the horizontal galvanization water pipe at intervals. A rotary spray head is arranged on each tee joint. According to the device, running of a slag transporting truck is not influenced in the dust reducing process, the device is light and can be randomly moved in a tunnel, the spraying covering range is far wider than that of a currently taken dust reducing measure, and a better dust reducing effect can be achieved.

Description

technical field [0001] The invention relates to a three-section multi-stage spray dust suppression system for tunnel dust, which belongs to the technical field of dust suppression equipment for tunnel construction. Background technique [0002] In the process of tunnel construction, a large amount of dust will inevitably be generated from the original mining method or the current new Austrian method. In view of the fact that the method commonly used in tunnels is the new Austrian method, this article mainly takes the new Austrian method as the background. For the new Austrian method, no matter whether the drilling and blasting method or the tunnel boring machine is used for excavation, a large amount of dust will be generated. In the tunnel construction, there will be a lot of machinery and vehicles involved in the work, which will produce a lot of harmful gases, and various masks and respirators will be required for the construction personnel, which will bring great inconve...

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Problems solved by technology

[0004] At present, the spray dust suppression measures adopted by the tunnel mainly include: install the spray dust suppression device on the truck, or install the second liner trolley, or install it on a small trolley designed by yourself. If the dust suppression device is installed on the truck, the road in the tunnel It is relatively narrow, it is difficult to carry out mobile dust removal, and it is easy to block with the slag truck, which reduces the construction efficiency and cannot effectively deal with the dust removal of the slag truck. The truck keeps moving and dust removal will greatly increase energy consumption; the distance between the installation of the second lining trolley The distance between the face of the tunnel is too far, and it cannot be moved to reduce dust and form water mist. The space for water mist is limited, and the effect of dust reduction is not obvious; it is installed on a small cart designed by ourselves, and the tunnel is not equipped with an inverted arch, so it is difficult for the small cart to drive

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