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A hobless hard rock tunneling machine using laser and liquid nitrogen jet to break rock

A technology of hard rock roadheader and laser emission, which is applied in the directions of cleaning methods, cleaning methods and appliances, chemical instruments and methods using gas flow, etc., can solve the problems of low energy utilization rate, poor slag discharge effect, etc. , The effect of reducing excavation costs and avoiding energy waste

Active Publication Date: 2022-02-08
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a hobless hard rock tunneling machine that uses laser and liquid nitrogen jets to break rocks, which solves the problem of low energy utilization rate and rock breaking and slag discharge when the tunneling machine uses laser to break rocks alone. Poor technical issues

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  • A hobless hard rock tunneling machine using laser and liquid nitrogen jet to break rock
  • A hobless hard rock tunneling machine using laser and liquid nitrogen jet to break rock
  • A hobless hard rock tunneling machine using laser and liquid nitrogen jet to break rock

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Embodiment 1

[0030] Embodiment 1, a kind of hob-free hard rock tunneling machine that utilizes laser and liquid nitrogen jet to break rock, such as figure 1 As shown, the shield body 8 is included, and the shield body 8 is provided with a central main driving unit 2 connected to the hob-free cutterhead 1, and the central main driving unit 2 drives the non-hob cutterhead 1 to rotate in a circumferential direction. A segment assembly machine 10 and a screw conveyor 12 are arranged inside the shield body 8 , and the feeding end of the screw conveyor 12 is located at the rear side adjacent to the hobless cutter head 1 .

[0031] Since the hobless cutterhead 1 is driven by the central main drive unit 2, there is enough space for assembly at the back of the hobless cutterhead, and a laser emitter 3 is arranged on the back of the hobless cutterhead 1. Laser is a new type of light source. Compared with ordinary light sources, it has the characteristics of high brightness, high orientation, and hig...

Embodiment 2

[0039] Embodiment 2, a hob-less hard rock tunneling machine using laser and liquid nitrogen jets to break rock, the laser emitting end 32 of the laser transmitter 3 is directed perpendicular to the front tunneling surface, which can ensure the application efficiency of laser energy reach the highest.

[0040] Other structures of this embodiment are the same as those of Embodiment 1.

Embodiment 3

[0041] Embodiment 3, a kind of hob-free hard rock tunneling machine that utilizes laser and liquid nitrogen jet to break rock, such as image 3 As shown, the laser transmitter 3 is connected with an angle monitoring device 31 and an angle adjusting device, and the angle monitoring device 31 and the angle adjusting device are connected with the control center. The control center can monitor the pointing of the laser emitting end 32 of the laser emitter 3 in real time through the angle monitoring device 31 , and correct the deviation by controlling the angle adjustment device after exceeding the error range.

[0042] Other structures of this embodiment are the same as Embodiment 1 or 2.

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Abstract

The invention discloses a hob-free hard rock roadheader for rock breaking by using laser and liquid nitrogen jet. The transmitter is provided with a dust removal unit, and the hobless cutter disc is provided with a liquid nitrogen nozzle. The liquid nitrogen nozzle is connected to a liquid nitrogen supply system through a liquid nitrogen high-pressure conveying pipe. The laser transmitter and the liquid nitrogen nozzle are connected to the control center. The invention adopts the laser and liquid nitrogen jet coupling rock breaking system, completely abandons the conventional cutting tool rock breaking technology, not only solves the problem that the metal cutter of the roadheader is prone to abnormal damage when cutting rock, but also improves the excavation efficiency and reduces the The cost of excavation can be adapted to the excavation of various strata.

Description

technical field [0001] The invention relates to the technical field of the fifth-generation tunnel boring machine, in particular to a hob-less hard rock boring machine which utilizes laser and liquid nitrogen jets to break rock. Background technique [0002] At present, tunnel excavation for rock formations mainly relies on disc-shaped hobs to squeeze rocks to achieve the purpose of breaking rock mass. Yes, but in harder rock formations the hob method is poorly economical. Therefore, need subversive invention a kind of novel roadheader and rock-breaking work method. [0003] After retrieval, the existing Chinese utility model patent with an application date of 2018.12.29 and an application number of CN201822256047.0 discloses a roadheader that uses lasers to break rocks, including a main body of the roadheader, and a cutter head is installed on the main body of the roadheader. The above-mentioned cutter head is provided with a laser generating device. Although this utilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/087E21D9/06E21D9/00E21D9/093E21D9/12B08B5/02
CPCE21D9/087E21D9/0621E21D9/0642E21D9/124E21D9/001E21D9/093E21D9/0873B08B5/02
Inventor 谭顺辉朱英呼瑞红徐姣姣张天增彭飞虎罗恒星
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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