All-dimensional oriented blasting charge guide rail device and method thereof

Abstract

The invention discloses an all-dimensional oriented blasting charge guide rail device and a method thereof, and belongs to oriented blasting charge devices and methods. A first guide rail is connected with a plurality of common guide rails to form the device, antiskid wires (2) are mounted at the end (1) of the first guide rail, a longitudinal ridge (4) is arranged in the middle of a cartridge push rail (3) of the guide rail, cartridge antiskid saw teeth (5) are distributed on the longitudinal ridge (4), a hook hole (8) is formed in a front guide rail tail end (6), a metal hook (9) is arranged at a rear guide rail head end (7), the guide rails are connected through the metal hook (9) and the hook hole (8), the oriented blasting charge method is used for oriented blasting charge of middle and deep holes of forced grooving top-caving in the coal mining process, and the device is simple in integral structure and convenient to operate by the aid of traditional charge technology. The mounting directions of a cartridge energy-concentrated cover and the like is as same as the breaking direction of rocks, and accurate oriented control fracture blasting is realized.

Description

technical field [0001] The invention relates to a device and method for directional blasting charge, in particular to a guide rail device for omnidirectional directional blasting charge and a method thereof. Background technique [0002] The mining conditions of coal mines in my country are complex. Under the condition of hard roof, it is easy to cause a large area of ​​overhanging roof, which produces huge pressure on the working face support, and the large area collapse of the overhanging roof can easily lead to the damage of the working face support, gas extrusion, rock burst and other disasters. Therefore, it is necessary to cut off the hard roof by means of pre-split blasting, control the falling step distance of the roof, and alleviate the impact problem caused by the roof falling. In addition, in the process of gob entry retention, the roof structure of the gob side roof can be optimized by medium and deep hole pre-split blasting to protect the stability and integrity...

AI Technical Summary

Problems solved by technology

[0005] (1) The special orientation adjustment rod for the energy-collecting tube composed of the gun rod and the orienter fixed at the end of the gun rod "Precisely oriented fracture blasting energy-concentrating tube and its orientation adjustment rod" (application number: 98221962.8), can be solved under certain conditions Orientation problem during the charging process, but if the vertical roof is constructed during the roof cutting and caving process, the energy-collecting tube is easy to slip when it is pushed into the blast hole, which cannot completely solve the problem of directional blasting

[0006] (2) The special device for positioning and directional pushing in the hole of the tunnel directional fracture blasting shaped-charge charge (application number: 201210430515.6), which can solve the positioning of the charge tube and the slit of the charge tube when the horizontal peripheral eye of the large-section tunnel adopts an uncoupled interval charging structure Orientation, but in the vertical construction of the blast hole, it cannot solve the anti-skid problem of the charge bag

[0007] (3) An installation device for energy-concentrated blasting tubes for roof cutting and pressure relief along gob-side roadway protection in coal mines (application number: 201220405243.X), which facilitates adjustment of the radial position of the energy-concentrating blasting tubes in the blasting hole during roof cutting. To a certain extent, it can be applied to the forced cutting and caving process of coal mines, but the diameter of the applicable drug roll is relatively single, and it also does not solve the anti-skid problem of the drug roll

[0008] (4) Most of the existing directional charging devices are suitable for directional charging of horizontal blastholes, but they do not solve the problem of directional charging of large-angle blastholes and the sliding of charge coils, thus limiting the promotion of cutting and caving technology application

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