Separating device

Abstract

The invention belongs to the technical field of tunnel construction, and particularly relates to a separating device. The separating device comprises cylindrical shells with at least two ends coaxially arranged, wherein two V-shaped energy gathering grooves sunken towards the centers of the cylindrical shells are symmetrically formed in the circumferential faces of the cylindrical shells, every two adjacent cylindrical shells are in insertion fit through plug pins and insertion holes, and a locking mechanism is arranged in each cylindrical shell where the corresponding insertion hole is located. A plurality of single explosive bodies are detachably assembled together, explosive transferring and feeding are facilitated, the separating devices are arranged between the explosive single bodies, after an explosive assembly enters a shot hole, the single explosive bodies are separated in sequence, and uniform distribution of explosive is achieved. When all the single bodies are assembled, ashot line with a certain length needs to be reserved between the single bodies, and the length of the reserved shot line should be consistent with the distance between every two adjacent single bodiesafter explosive is arranged in the shot hole.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a separation device. Background technique [0002] Palm blasting refers to blasting the end face of the tunnel to gradually advance the tunnel depth when excavating the tunnel. It is determined by the blasting quality of the peripheral eye. In the prior art, ordinary emulsion explosives are generally used for blasting. The force on the rock is relatively scattered during blasting, and defects such as concave or convex are often produced on the contour of the vault, which requires manual post-mortem. , high labor intensity and long construction period; therefore, technicians have developed a new type of blasting device, which is filled with emulsion explosives in a cylindrical shell, and the cylindrical shell is provided with a concave V-shaped energy-gathering groove. The principle of this device is similar to that of the armor-piercing projectile. It use...

AI Technical Summary

Problems solved by technology

[0002] Palm blasting refers to blasting the end face of the tunnel to gradually advance the tunnel depth when excavating the tunnel. It is determined by the blasting quality of the peripheral eye. In the prior art, ordinary emulsion explosives are generally used for blasting. The force on the rock is relatively scattered during blasting, and defects such as concave or convex are often produced on the contour of the vault, which requires manual post-mortem. , high labor intensity and long construction period; therefore, technicians have developed a new type of blasting device, which is filled with emulsion explosives in a cylindrical shell, and the cylindrical shell is provided with a concave V-shaped energy-gathering groove. The principle of this device is similar to that of the armor-piercing projectile. It uses the V-shaped energy-gathering groove to accumulate the explosion energy, and can generate a large impact force in the direction of the opening of the V-shaped groove, thereby cutting the rock formation, such as figure 1 As shown, when the blasting device is used for palm blasting, it is mainly used for peripheral eye blasting. When filling the charge, it is necessary to align the V-shaped energy-gathering groove with the two adjacent peripheral eyes on both sides to achieve accurate arch contours. to cut

However, compared with ordinary emulsion explosives, this new type of blasting device needs to adjust the angle of each explosive when filling the explosives. In addition, after the explosives are loaded in place, it must be ensured that they do not deflect in the blasthole. The operation is difficult and the construction period long, affecting construction progress

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