Drilling and cutting integrated outburst preventing and permeability improving system for mines

A drilling and cutting and outburst prevention technology, which is applied in the direction of liquid/gas jet drilling, mining fluid, mining equipment, etc., can solve the problems of increasing construction procedures, achieve the effects of reducing labor costs, reasonable design, and improving drainage efficiency

Inactive Publication Date: 2013-01-02
西安美尼矿山设备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when this technology is applied, it is necessary to transport the cutting device to t...

Method used

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  • Drilling and cutting integrated outburst preventing and permeability improving system for mines
  • Drilling and cutting integrated outburst preventing and permeability improving system for mines
  • Drilling and cutting integrated outburst preventing and permeability improving system for mines

Examples

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Embodiment 1

[0077] Such as figure 1 , figure 2 with image 3 As shown, the present invention includes a drill 29, a drill rod 30 clamped on the drill 29, and a drill bit connected to one end of the drill rod 30, and also includes a water tank 34 and a water tank 34 for pressurizing the water in the water tank 34. The high-pressure pump station 31 for transportation. The drill bit is a drilling and cutting integrated drill bit 37. The other end of the drill rod 30 is connected with a high-pressure hose 33 for conveying water to the drill rod 30 through a first rotary joint 32. The high-pressure pump The inlet of the station 31 is connected with the outlet of the water tank 34, and the outlet of the high-pressure pump station 31 is connected with a high-pressure hose 33; the drilling and cutting integrated drill 37 includes a drill housing and a hydraulic cutting assembly arranged in the drill housing. The integrated drill bit 37 realizes the switching of drilling and cutting through the lat...

Embodiment 2

[0092] Combine Figure 9 ~ Figure 13 The difference between this embodiment and the first embodiment is that the high-pressure hose 33 is connected with a pressure controller 35 for controlling the pressure of the water in the high-pressure hose 33. The rear end of the second rotary joint 6 is connected with a second pipe 17, and the rear end of the second pipe 17 is connected with a sealing cover 18, and the center of the sealing cover 18 is provided with a sealing cover central hole 18 through which water flows. -1, the outer diameter of the front half of the sealing cover 18 is greater than the outer diameter of the rear half, and the front end surface of the sealing cover 18 can abut the rear end surface of the second limiting mechanism. The rear end of the sealing cover 18 is provided with a filter screen 19 covering the central hole of the sealing cover 18, and the rear end of the sealing cover 18 is connected with an end cover 20 for fixing the filter screen 19. The cen...

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Abstract

The invention discloses a drilling and cutting integrated outburst preventing and permeability improving system for mines. The system comprises a drilling machine, a drill stem and a drill, and further comprises a water tank and a high-pressure pump station. The drill is a drilling and cutting integrated drill, the drill stem is connected with a high-pressure rubber hose through a first rotary joint, an inlet of the high-pressure pump station is connected with the water tank, and an outlet of the high-pressure pump station is connected with the high-pressure rubber hose; the drilling and cutting integrated drill comprises a drill casing and a waterpower cutting component, a first drilling cutter is arranged on the outer side at the front end of the drill casing, and a first drainage channel is opened at the front end of the drill casing; and the waterpower cutting component comprises a waterpower spin cutting head, a first conduit and a second rotary joint which are connected successively, the waterpower spin cutting head is arranged on the inner side at the front end of the drill casing, a first limit mechanism and a second limit mechanism are arranged on the inner wall of the drill casing, and a nozzle is mounted on the waterpower spin cutting head. According to the drilling and cutting integrated outburst preventing and permeability improving system for mines, the device purchase and usage cost is reduced, the labor time and the labor cost are reduced, the pumping efficiency of coal-bed gas is improved, the practicability is good, and popularization and application values are high.

Description

Technical field [0001] The invention belongs to the technical field of coal mine gas control equipment, and in particular relates to an integrated anti-burst and anti-reflection system for mine drilling and cutting. Background technique [0002] At present, coal mine gas control mainly uses drilling holes to pre-drain the gas in the coal seam to avoid gas accidents during coal mining. Using a single borehole to pre-drain gas, the borehole diameter is the key factor that affects the gas drainage effect: small hole diameter means small free surface, low gas discharge speed, longer waiting time for mining, which affects the production efficiency of the mine; The hole diameter should not be too large, otherwise the hole formation and hole stability will be damaged under the comprehensive stress of the coal seam, and the drilling speed of the hole with a large hole diameter is slower, the efficiency is lower, and the larger external power is required. The effective coal hole section ...

Claims

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Application Information

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IPC IPC(8): E21F7/00E21B7/00E21B7/18E21B43/26E21B10/61
Inventor 肖魁元
Owner 西安美尼矿山设备科技有限公司
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