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A hobless hard rock tunneling machine using microwave and high-pressure water jet to break rock

A technology of high-pressure water jet and hard rock roadheader, which is applied in mining equipment, tunnels, earthwork drilling and mining, etc., can solve the problems of long construction period and high cost, and achieve the effect of reducing excavation cost, light weight and improving excavation efficiency

Active Publication Date: 2022-02-22
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a hobless hard rock tunneling machine that uses microwaves and high-pressure water jets to break rocks, which solves the problems of existing tunneling machines that need to change cutters and other maintenance during the tunneling process. The technical problems caused by high cost and long construction period

Method used

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  • A hobless hard rock tunneling machine using microwave and high-pressure water jet to break rock
  • A hobless hard rock tunneling machine using microwave and high-pressure water jet to break rock
  • A hobless hard rock tunneling machine using microwave and high-pressure water jet to break rock

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Effect test

Embodiment 1

[0031] Embodiment 1, a kind of hard rock tunneling machine without hob that utilizes microwave and high-pressure water jet to break rock, such as figure 1 As shown, including the shield body 4, the center main drive system 7 is arranged in the shield body 4, and the center main drive system 7 is connected with or without the hob cutter head 3 through a connecting frame 71 with a span greater than one meter. The center main drive system 7 can be large The span connecting frame 71 drives the hobless cutter head 3 to rotate in the circumferential direction. A segment assembly machine 8 and a screw conveyor 9 are arranged inside the shield body 4 , and the feeding end of the screw conveyor 9 is located at the rear side adjacent to the hobless cutter head 3 .

[0032] The large-span connection frame 71 can construct enough installation space between the hobless cutterhead 3 and the central main drive system, and the rear side of the hobless cutterhead 3 is provided with a microwave...

Embodiment 2

[0036] Embodiment 2, a kind of hard rock tunneling machine without hob that utilizes microwave and high-pressure water jet to break rock, such as Figure 5 As shown, the microwave radiation arm 1 is retractable, and the retractable microwave radiation arm 1 can be adjusted according to the distance between the hobless cutter head 3 and the rock, so that the microwave radiation arm 1 can always closely fit the rock section , to avoid excessive scattering or reflection of microwaves to reduce heat dissipation efficiency.

[0037] The microwave radiation arm 1 includes a microwave emission terminal 12 that is plugged and matched with the hobless cutterhead 3, the microwave emission terminal 12 is connected with a first telescopic cylinder 13, and one end of the first telescopic cylinder 13 is connected with the microwave emission terminal 12 , the other end links to each other with the hob-free cutter head 3, and the expansion and contraction of the first telescopic cylinder 13 c...

Embodiment 3

[0040] Embodiment 3, a hob-less hard rock tunneling machine that uses microwaves and high-pressure water jets to break rocks. The first pneumatic telescopic cylinder or the first hydraulic telescopic cylinder is provided with a pressure sensor connected to the controller, and the controller is connected to There is a first solenoid valve for controlling the on-off of the air inlet of the first pneumatic telescopic cylinder or the liquid inlet of the first hydraulic telescopic cylinder. The pressure sensor can monitor the pressure in real time, and the controller can control the on-off of the first electromagnetic valve in real time according to the monitored pressure, and then control the telescopic state of the first pneumatic telescopic cylinder or the first hydraulic telescopic cylinder.

[0041] A threshold is set in the controller to control the pressure in the first pneumatic telescopic cylinder or the first hydraulic telescopic cylinder to be constant, and the real-time ...

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Abstract

The invention discloses a hob-less hard rock tunneling machine which uses microwaves and high-pressure water jets to break rocks, which solves the problems of high cost and long construction period caused by the maintenance of the cutter head during the tunneling process of the existing roadheader. technical issues. The invention includes a shield body provided with a central main drive system, the central main drive system is connected with or without a hob cutterhead through a connecting frame with a span greater than one meter, and a microwave transmitter is arranged on the rear side of the hobless cutterhead, and the microwave transmitter A microwave radiation arm leading to the front side of the hobless cutter head is connected, and a high-pressure water pump station is arranged in the shield body, and the high-pressure water pump station is connected with a high-pressure water nozzle through a high-pressure pipeline, and the high-pressure water nozzle is arranged on the front side of the hob-less cutter head. On the front side, the front rock is impacted and broken. The invention adopts microwave and high-pressure water jet coupling rock-breaking system, abandons the conventional tool rock-breaking technology, solves the problem that the metal tool of the roadheader is prone to abnormal damage when cutting rock, improves the excavation efficiency, and reduces the excavation cost .

Description

technical field [0001] The invention relates to the technical field of fifth-generation tunnel boring machines, in particular to a hob-less hard rock boring machine which uses microwaves and high-pressure water jets to break rocks. 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 searching, the existing Chinese utility model patent with the application date of 2018.12.25 and the application number of 201822184738.4 discloses a microwave-assisted rock-breaking TBM cutterhead for hard rock, including the main body of the TBM cutterhead. The main body of the TBM cutterhead is mainly composed of It is composed of single-edged rock-breaking hob, double-edged rock-breaking h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06E21D9/08
CPCE21D9/0642E21D9/08
Inventor 朱英叶蕾朱雷王梦凡彭飞虎
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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