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Nozzle, system and method for securing a bolt in a rock hole

A nozzle and rock technology, applied in the installation of bolts, earthwork drilling, mining equipment, etc., can solve problems such as reducing overall productivity, and achieve the effect of eliminating risks

Pending Publication Date: 2022-02-25
EPIROC ROCK DRILLS AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This cleaning often takes up to an hour per shift, thus reducing overall productivity

Method used

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  • Nozzle, system and method for securing a bolt in a rock hole
  • Nozzle, system and method for securing a bolt in a rock hole
  • Nozzle, system and method for securing a bolt in a rock hole

Examples

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Embodiment Construction

[0108] The invention will now be described in more detail below with reference to the accompanying drawings showing exemplary embodiments. The invention is not to be construed as limited to the disclosed examples of implementation; instead, the invention is defined by the appended claims. Like numbers in the figures denote like elements throughout.

[0109] figure 1 Shown is a system 1 for injecting a multi-component mixture into a rock hole, wherein the mixture is suitable for fastening a bolt in the rock hole. According to a preferred embodiment, the anchor is a cable anchor. exist figure 1 , the system 1 is deployed on a drilling rig 3 . The system 1 includes a nozzle 5 adapted to inject a multi-component mixture into a rock hole. exist figure 1 In , the nozzle 5 is arranged on the front part of the drilling machine 3 . The system may also comprise a feed device 7 enabling movement of the nozzle 5 relative to the system 1 and / or the drilling rig 3, for example into a...

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PUM

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Abstract

A nozzle (5) for injecting a multi-component mixture into a rock hole, wherein the mixture is adapted for securing a bolt in the rock hole. The nozzle (5) comprises first and second channels (31, 33) adapted to receive a first respective second component of the multi- component mixture, and a third channel (55) adapted to receive a blocking agent (S). The third channel (55) is connected to the first channel (31). Furthermore, the nozzle (5) comprises a mixing member (23) to mix the first and the second component prior to injecting the mixture into the rock hole. The nozzle (5) further comprises an outlet (21) adapted to inject the mixture of the first and the second component directly into the rock hole. A system (1) for securing a bolt in a rock hole and a method for securing a bolt in a rock hole are also described.

Description

technical field [0001] The present invention relates to rock bolting, for example in the mining industry and when performing tunnel construction. In particular, the present invention relates to nozzles, systems and methods for securing bolts in rock holes. Background technique [0002] To facilitate tunneling or mining, the rock is weakened, which may cause parts of the rock to collapse. Falling rock not only delays work on site, but is also very dangerous for site workers. Measures to reduce the risk of collapse are therefore required. These measures are often referred to as rock reinforcement. Wooden posts and beams were used for a long time but have now been replaced by better solutions. A common method for strengthening rock today is the use of bolts which are used to secure the arc of rock which will carry the roof in the tunnel. The bolt may eg be fastened in a pre-drilled hole, or may be drilled into the rock during the fastening process. [0003] However, when ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D20/02E21D20/00
CPCE21D20/028E21D20/003E21D20/025E21D21/00
Inventor 亨里克·L·雅各布松亨里克·雅各布松
Owner EPIROC ROCK DRILLS AB