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CN-224230861-U - Main drop shaft blockage dredging construction device for mine

CN224230861UCN 224230861 UCN224230861 UCN 224230861UCN-224230861-U

Abstract

The utility model relates to the technical field of mine blasting, in particular to a mining main drop shaft blockage dredging construction device, which comprises a supporting component and a blasting component detachably connected to the top end of the supporting component, wherein the supporting component comprises a first steel pipe, a second steel pipe positioned in the main drop shaft and a nylon rope penetrating through inner cavities of the first steel pipe and the second steel pipe, one end of the nylon rope is fixedly connected with the first steel pipe, the other end of the nylon rope freely extends to the outside of the second steel pipe, the first steel pipe is connected with the second steel pipe end to end through a universal joint, and the second steel pipe enters the main drop shaft through a communicating drilling hole on the wall of the drop shaft.

Inventors

  • An Zhihai
  • JIANG FENGJUN
  • LI WEIGUO
  • YIN YANTIAN
  • HUA YONG

Assignees

  • 山东黄金矿业科技有限公司深井开采实验室分公司

Dates

Publication Date
20260512
Application Date
20250514

Claims (7)

  1. 1. A mining main drop shaft blockage dredging construction device is characterized by comprising a supporting component (3) and a blasting component (2) which is detachably connected to the top end of the supporting component, wherein the supporting component (3) comprises a first steel pipe (304), a second steel pipe (306) which is positioned in a main drop shaft (6) and a nylon rope (303) which penetrates through inner cavities of the first steel pipe (304) and the second steel pipe (306), one end of the nylon rope (303) is fixedly connected with the first steel pipe (304), the other end of the nylon rope freely extends to the outside of the second steel pipe (306), the first steel pipe (304) is connected with the second steel pipe (306) end to end through a universal joint (305), and the second steel pipe (306) enters the main drop shaft (6) through a communication drilling hole (4) in the drop shaft wall (5).
  2. 2. The mining main drop shaft blockage dredging construction device according to claim 1, wherein the blasting assembly (2) is located at the top end of the first steel pipe (304), and a probe (302) is further arranged between the first steel pipe (304) and the blasting assembly (2).
  3. 3. The mining main drop shaft blockage dredging construction device according to claim 1, wherein the blasting assembly (2) comprises a sleeve (204), the head of the sleeve (204) is sealed and filled with modified epoxy resin glue (201), the tail of the sleeve (204) is connected with a sealing cover plate (205), the sealing cover plate (205) is provided with a first thread (207) matched with a second thread (301) at the end part of the first steel pipe (304), and a tubular emulsion explosive (203) is arranged in the sleeve (204).
  4. 4. The mining main drop shaft blockage dredging construction device according to claim 3, wherein the upper end of the tubular emulsion explosive (203) is provided with a conical energy-collecting cap (202).
  5. 5. The mining main drop shaft blockage dredging construction device according to claim 1 is characterized in that the connecting drilling holes (4) are arranged on drop shaft walls (5) of the drop shaft connecting roadway (10), and the aperture of the connecting drilling holes (4) is phi 32-45 mm.
  6. 6. The mining main drop shaft blockage dredging construction device according to claim 5, wherein the outer diameter of the sleeve (204) is smaller than the aperture of the connecting drilling hole (4) by 5mm.
  7. 7. The mining main drop shaft blockage dredging construction device according to claim 1, wherein the first steel pipe (304) and the second steel pipe (306) are made of stainless steel, the universal joint (305) comprises a guard plate (308) and cross shafts (307) rotatably connected to two ends of the guard plate (308), and the two groups of cross shafts (307) are also rotatably connected with the ends of the first steel pipe (304) and the second steel pipe (306) respectively.

Description

Main drop shaft blockage dredging construction device for mine Technical Field The utility model relates to the technical field of mine blasting, in particular to a dredging construction device for blocking a main drop shaft for a mine. Background In deep well mining operation, the main drop shaft often causes blocking accidents due to factors such as higher ore humidity, uneven block degree, structural defects of a well wall and the like, and complex blocking forms such as suspension arches, caking and the like are formed. The traditional main drop shaft dredging technology mainly relies on three methods, namely manual poking, blasting and high-pressure water jet. The blasting rule adopts a mode of throwing explosive charges at a wellhead, and can treat blockage with larger depth, but the method has the defects of uncontrollable detonation position and low utilization rate of rock breaking energy, and is easy to cause secondary damage of a shaft or ore splashing accidents. The patent of China patent publication No. CN 219531837U discloses a blasting treatment device for a drop shaft blockage, which comprises a lifting assembly and a supporting rod, wherein the supporting rod is arranged in the drop shaft, the lifting assembly is arranged in a drop shaft connecting channel, the lifting assembly comprises a winch, a lifting support and a steel wire rope, one end of the steel wire rope is connected with the winch, the other end of the steel wire rope penetrates through the lifting support and is connected with the supporting rod, a fixing plate is arranged at the top end of the supporting rod, a placing groove is formed above the fixing plate, a explosive bag is arranged in the placing groove, a winding wheel, a traction wheel and a limiting ring are arranged in the drop shaft connecting channel, a traction rope is wound on the winding wheel, one end of the traction rope is connected with the winding wheel, the other end of the traction rope penetrates through the limiting ring and the traction wheel to be fixedly connected with the supporting rod, the explosive bag fixed at the top end of the supporting rod is lifted to a target position where a blockage in the drop shaft is located, fixed-point blasting is achieved, but the scheme of lifting the steel wire rope through the winding wheel, the traction wheel and the limiting ring is complex in structure, and in order to put in explosive bag, in a large-scale blasting connection between the drop shaft and the drop shaft channel, and the drop shaft needs to be easy to collapse, and potential safety hazards occur during operation. Disclosure of utility model The utility model aims to overcome the defects in the prior art, and provides a dredging construction device for the blockage of a main drop shaft for a mine. According to the technical scheme, the mining main drop shaft blockage dredging construction device comprises a supporting component and a blasting component detachably connected to the top end of the supporting component, wherein the supporting component comprises a first steel pipe, a second steel pipe positioned in the main drop shaft and a nylon rope penetrating through inner cavities of the first steel pipe and the second steel pipe, one end of the nylon rope is fixedly connected with the first steel pipe, the other end of the nylon rope freely extends to the outside of the second steel pipe, the first steel pipe is connected with the second steel pipe end to end through a universal joint, and the second steel pipe enters the mining main drop shaft through a connecting drilling hole in the wall of the drop shaft. Preferably, the blasting assembly is located at the top end of the first steel pipe, and a probe is further arranged between the first steel pipe and the blasting assembly. Preferably, the blasting assembly comprises a sleeve, the head of the sleeve is sealed and filled with modified epoxy resin glue, the tail of the sleeve is connected with a sealing cover plate, the sealing cover plate is provided with first threads matched with second threads at the end part of the first steel pipe, and tubular emulsion explosive is arranged in the sleeve. Preferably, the upper end of the tubular emulsion explosive is provided with a conical energy-gathering cap. Preferably, the connecting drill hole is positioned on the chute wall of the connecting roadway section of the drop shaft, and the aperture of the connecting drill hole is phi 32-45 mm. Preferably, the sleeve outer diameter dimension is 5mm smaller than the tie-hole bore diameter. Preferably, the first steel pipe and the second steel pipe are made of stainless steel, the universal joint comprises a guard plate and cross shafts rotatably connected to two ends of the guard plate, and the two groups of cross shafts are also rotatably connected with the ends of the first steel pipe and the second steel pipe respectively. The beneficial effects of the utility model are as follows: 1. When the devic