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Injection device

A technology of injection device and sprinkler body, which is applied to injection device, liquid injection device, mining equipment, etc., can solve the problem of low driving efficiency of hard rock, and achieve the effect of improving rock breaking efficiency and rock breaking amount, and improving driving efficiency.

Active Publication Date: 2022-01-25
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the prior art has the technical problem that the tunnel boring machine has a low driving efficiency for hard rock.

Method used

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] The invention provides a spraying device, such as figure 1 and figure 2 As shown, the injection device includes: a nozzle body 10, an acceleration throat 41, a fluid input connector 20 installed on the nozzle body 10, and an abrasive input connector 31 installed on the nozzle body 10. The nozzle body 10 is provided with an injection outlet 101; The throat pipe 41 is installed on the nozzle body 10, and the lower end of the acceleration throat pipe 41 ...

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Abstract

The invention provides an injection device. The injection device comprises a spray head body, an accelerating throat pipe, a fluid input connector and an abrasive input joint, wherein the spray head body is provided with an injection outlet; the accelerating throat pipe is mounted on the spray head body, and the lower end of the accelerating throat pipe is in communication with the injection outlet; the fluid input connector is arranged on the spray head body and is in communication with the upper end of the accelerating throat pipe; and the abrasive input joint is arranged on the spray head body and is in communication with the accelerating throat pipe. According to the injection device, the tunneling efficiency of a tunnel boring machine on hard rocks is improved.

Description

technical field [0001] The invention relates to the technical field of tunneling equipment, in particular to a spraying device. Background technique [0002] At present, TBM (Tunnel Boring Machine, Tunnel Boring Machine) is the main equipment for hard rock tunnel excavation, which has the characteristics of safe, efficient and environmentally friendly construction. In order to improve the excavation efficiency, a nozzle is usually added to the cutter head of the TBM, and the nozzle sprays high-pressure water jets outwards, and the high-pressure water jets assist rock breaking. In some cases, abrasives can be added to the high-pressure water jet. The hardness of the abrasives is relatively high, and the use of abrasives for rock breaking helps to further improve the rock breaking efficiency. However, in the prior art, there is a technical problem that the tunnel boring machine has low driving efficiency for hard rock. Contents of the invention [0003] The object of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B7/04B05B7/14E21D9/06E21D9/10
CPCB05B7/0408B05B7/1436B05B7/149E21D9/0642E21D9/1066
Inventor 杨兴亚张天增李建斌文勇亮程绍磊商秋月
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD