Intelligent high-pressure water jet anchor releasing device

Abstract

The invention provides an intelligent high-pressure water jet anchor releasing device, and belongs to the technical field of mine safety equipment. By innovatively integrating the ultrahigh-pressure water jet technology, the multi-angle visual monitoring system and the modular pipeline design, safe and efficient dismantling of the coal mine anchor cable is achieved. Compared with a traditional method, the working efficiency is improved by more than three times, sparks are completely eradicated, and the method is particularly suitable for high-gas mines. Compared with a traditional anchor releasing method, the device is good in safety performance, has high operation efficiency under the condition that the intelligent level is guaranteed, meanwhile, is economical and environmentally friendly, and can provide reliable technical guarantee for safe production of mines.

Description

Technical Field

[0001] The present invention relates to the technical field of mine safety equipment, and in particular to a high-pressure water jet anchor removal device for removing anchor cables in coal mine tunnels, which is particularly suitable for safe anchor removal operations in high-gas environments. Background Art

[0002] Traditional anchor cable removal mainly uses mechanical cutting or hydraulic anchor removal, which has the following main defects: (1) Mechanical cutting generates high temperature and sparks during operation, which can easily cause explosion accidents in high-gas environments. (2) Hydraulic anchor removal requires close manual operation, which poses the risk of roof collapse and injury in unstable roof areas. (3) Traditional anchor removal machines take 2-3 hours to operate per operation, and cannot monitor the changes in anchoring force in real time, and the success rate of anchor removal is not high. In response to the above problems, the present invention proposes an anchor removal device that integrates high-pressure water jetting, real-time monitoring and intelligent control. Summary of the Invention

[0003] The present invention aims to provide a safe, efficient, intelligent high-pressure water jet anchor undocking device, which mainly solves the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] The device includes four major functional modules: (1) High-pressure water jet module: It uses a special aged stainless steel nozzle with an operating pressure range of 800-1600 bar. A 30° conical guide structure is set at the front end of the nozzle to achieve a high injection speed. (2) Visual monitoring system: It uses three sets of high-definition CMOS cameras to monitor the process in real time, and uses a yellow LED light source with a certain wavelength to ensure brightness. In front of the light source, a tempered glass protective cover with good light transmittance is set. (3) Segmented high-pressure resistant hollow tube: It is designed as a multi-end connected high-pressure resistant hollow tube, including three 20cm steel tenons that fit tightly with the front end of another hollow tube to ensure stable construction. The outer side of the hollow tube has a spiral structure with a certain spacing and thickness to prevent coal slag from clogging the hole. (4) Intelligent control system: It is equipped with a pressure sensor and an embedded controller based on STM32, which can perform wireless transmission.

[0006] The device works as follows: (1) Drill parallel holes next to the anchor cable. (2) Assemble the segmented hollow tube and insert it into the drill hole. (3) Start the high-pressure water pump and gradually increase the pressure to a certain level. (4) The camera monitors the coal removal status in real time. (5) When the anchoring force drops below 5kN, the operation is stopped.

[0007] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. The specific implementation methods of the present invention are given in detail by the following embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0009] Figure 1 This is a schematic diagram of the structure of an intelligent high-pressure water jet anchor release device;

[0010] In the figure: 1. High-pressure pump; 2. Hose; 3. Segmented hollow pressure-resistant pipe; 4. High-pressure water jet; 5. Anchor cable; 6. Pallet; 7. Lock; 8. Free section. DETAILED DESCRIPTION

[0011] The present invention is described in further detail below in conjunction with the embodiments:

[0012] Example 1

[0013] like Figure 1 As shown, the present invention provides an intelligent high-pressure water jet anchor release device, including a high-pressure pump, a hose, a segmented hollow pressure-resistant pipe, a high-pressure water jet, an anchor cable, a tray, and a lock.

[0014] Example 2

[0015] like Figure 1 As shown, based on Example 1, the present invention provides a technical solution: an intelligent high-pressure water jet anchor release device has good performance and simple operation.

[0016] An intelligent high-pressure water jet anchor release device should be assembled before construction: The high-pressure water jet equipment should be placed horizontally on the baseplate, at least 3 meters from the anchor cable (areas 3-6 in the figure), ensuring that the pipe is not squeezed. A segmented, high-pressure-resistant hollow pipe, each 120 cm long, should be connected tightly with steel dowels. The spiral slag removal mechanism should be checked for smooth operation. To begin anchor release, parallel holes with a diameter of approximately 42 mm and a depth equal to the anchoring section (areas 3-6 in the figure) should be drilled alongside the anchor cable (area 4 in the figure). The high-pressure water pump should be started, gradually increasing the pressure to 1500 bar. The nozzle should begin cutting at the interface between the non-anchored and anchored sections (area 6 in the figure). A camera should monitor the coal removal progress in real time (area 5 in the figure) to ensure that only the coal is cut and the anchor cable is not damaged. An internal sensor should monitor the anchoring force in real time, and the operation should cease when the pressure drops below 5 kN.

[0017] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. An intelligent high-pressure water jet anchor undocking device, characterized by: It includes a water jet system with a pressure resistance of ≥1600bar, a three-camera visual monitoring system, a segmented hollow tube with a spiral slag discharge structure; and an intelligent control system with pressure adaptive function.

2. The intelligent high-pressure water jet anchor undocking device according to claim 1, characterized in that: The operating pressure range of the high-pressure water jet module is 800-1600 bar, the optimal operating pressure is 1500±50 bar, and the jet speed can reach about 800 m / s.

3. The intelligent high-pressure water jet anchor undocking device according to claim 1, characterized in that: The camera resolution of the visual monitoring system is 1280×960@30fps, and the LED light source brightness can be adjusted in the range of 300-1500 lux.

4. The intelligent high-pressure water jet anchor undocking device according to claim 1, characterized in that: The segmented high-pressure resistant hollow pipe is made of aluminum alloy with a large yield strength, and a 20cm steel tenon is provided at the pipe connection to ensure a tight connection.

5. The intelligent high-pressure water jet anchor undocking device according to claim 1, characterized in that: The intelligent control system also includes an emergency processing module, which automatically cuts off the water supply and triggers an audible and visual alarm when it detects that the gas concentration exceeds 0.8% or the roof pressure is abnormal.

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