CN214372062U

CN214372062U - Blasting device for treating ore pass blockage in ascending mode

Info

Publication number: CN214372062U
Application number: CN202022993267.9U
Authority: CN
Inventors: 冯壹; 陈维; 贺坤; 陈伟; 陈孝刚; 袁宴德; 刘剑; 欧阳江成
Original assignee: Hunan Huangjindong Mining Industry Co ltd
Current assignee: Hunan Huangjindong Mining Industry Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-10-08
Anticipated expiration: 2030-12-14

Abstract

An ascending blasting device for treating the blockage of a drop shaft comprises a main steel pipe, a plurality of auxiliary steel pipes, a guide pulley, a rope and an explosive bag; the front end of the main steel pipe is provided with the guide pulley, the tail end of the main steel pipe is sequentially connected with a plurality of auxiliary steel pipes until the guide pulley at the front end of the main steel pipe abuts against the blockage part of the orepass when in use, and the rope is wound on a wheel groove of the guide pulley; the explosive is attached to one end of the rope. Therefore, the explosive bag is pulled to be lifted to the blockage part of the chute by the guide pulley and the nylon rope, and the method is simple and convenient; the explosive cartridge can be conveyed and exploded by the aid of the steel pipes, the guide pulleys and the ropes which are connected with one another, the implementation cost is low, the operation is simple and convenient, the efficiency is high, the problem of chute blockage can be effectively and quickly solved, and the method is particularly suitable for blocking a small-section chute with the height of less than 30m (the total height of the chute is less than 40 m).

Description

Blasting device for treating ore pass blockage in ascending mode

Technical Field

The utility model relates to a mine drop shaft blocks up the demolition unit of mediation, especially blocks up the demolition unit of mediation to a jam height is less than 30 m's small cross section drop shaft (drop shaft overall height is less than 40 m).

Background

At present, the method for dredging the blockage of the drop shaft comprises the following steps: blasting method of rocket tube for mining, high-pressure water impact method, irrigation method, excavation method, drilling blasting method, hydrogen balloon blasting method, steel pipe leading-in blasting method and the like. However, for the problem of blockage of the small-section drop shaft, a high-pressure water impact method, a water irrigation method, a mining rocket tube blasting method and a hydrogen balloon blasting method are adopted for processing, so that the effect is difficult to achieve; the drilling blasting method and the downward digging method are adopted for processing, so that the cost is high and the difficulty is high; and adopt the leading-in blasting method of steel pipe, when the swift current well plug bulk density is more, when carrying out steel pipe strike construction, the bulk density ore or the barren rock in the swift current well can cause great hindrance to the construction, increases the construction degree of difficulty.

For the blasting method for processing the draw shaft blockage in the ascending mode, the patent documents are consulted, and more blasting devices for blocking are known to be arranged at the bottom of the draw shaft blockage, for example, CN106767211A discloses a drawing shaft blockage blasting device and a method, wherein a wireless remote controller and a device matched with an aircraft are used for remotely controlling the aircraft to convey explosives to a selected position below the blockage; for another example, CN106907963A discloses a draw shaft suspension blasting device, which utilizes high-pressure airflow generated by an air compressor to convey explosive bags to the lower part of the blockage of the draw shaft, and keeps fixed point suspension; for another example, CN110567331A discloses a blasting fixing device and a chute dredging system and method using the same, which utilizes a vertical rod and an umbrella-shaped supporting mechanism to fix an explosive bag below a blocked part, and the like. These publications can perform dredging blasting by placing an explosive under the clogged part, but the device for fixing the explosive to the clogged part is complicated and has a high cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at, to the not enough of above-mentioned prior art, for simple rapid processing drop shaft jam problem effectively, the utility model provides an upstroke handles the blasting device that the drop shaft blockked up, it utilizes several interconnect's steel pipe, a leading pulley and a nylon rope, can send the explosive smoothly to the drop shaft and block up the position, destroys the structural balance who blocks up the position through the detonation wave, makes the drop shaft block up the department ore rock of department not hard up and collapse, mediation drop shaft.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an upstroke type blasting device for treating the blockage of a drop shaft is characterized by comprising a main steel pipe, a plurality of auxiliary steel pipes, a guide pulley, a rope and an explosive package; the front end of the main steel pipe is provided with the guide pulley, the tail end of the main steel pipe is sequentially connected with a plurality of auxiliary steel pipes until the guide pulley at the front end of the main steel pipe abuts against the blockage part of the orepass when in use, and the rope is wound on a wheel groove of the guide pulley; the explosive is attached to one end of the rope.

Preferably, the main steel pipe and the auxiliary steel pipes are in threaded connection. Specifically, the end of main steel pipe is equipped with first internal thread, and the both ends of this vice steel pipe set up second internal thread and external screw thread respectively, and this external screw thread and this first internal thread and second internal thread phase-match make the screw thread between main steel pipe end and the vice steel pipe and between each vice steel pipe can form a complete set screw-on. The utility model discloses only adopted the threaded connection mode to explain, other modes that can connect fixed different steel pipes among the prior art of course also are applicable to the utility model discloses.

Preferably, the main steel pipe and the auxiliary steel pipe are both DN25 type steel pipes (namely, the outer diameter of the steel pipe is 32mm, and the wall thickness of the steel pipe is 3.2 mm). The length of the steel pipe (including the main steel pipe and the auxiliary steel pipe) is designed to be 0.7-0.8 m, and the steel pipe is designed according to the conventional size of the mouth of the orepass, so that the steel pipe is beneficial to connection and lengthening, and the operation is convenient.

Preferably, the guide pulley is fitted with a pulley jacket to prevent the rope from leaving the guide pulley. And the rope passes through the pulley outer sleeve and then is wound on the pulley groove of the guide pulley. The rope is a nylon rope.

Preferably, the device is suitable for a small-section drop shaft with the distance (namely the blocking height) of the bottom surface of the drop shaft blocking part from the bottom of the drop shaft being less than 30 m.

The utility model pulls the explosive package to the blocking part of the chute through the guide pulley and the nylon rope, which is simple and convenient; the explosive cartridge can be conveyed and exploded by the aid of the steel pipes, the guide pulleys and the ropes which are connected with one another, the implementation cost is low, the operation is simple and convenient, the efficiency is high, the problem of chute blockage can be effectively and quickly solved, and the method is particularly suitable for blocking a small-section chute with the height of less than 30m (the total height of the chute is less than 40 m).

The present invention will be further explained with reference to the drawings and the embodiments.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the structure of the guide pulley of the present invention.

Fig. 3 is a schematic view of the connection structure of the guide pulley and the main steel pipe of the present invention.

Fig. 4 is a schematic view of the structure of the auxiliary steel pipe of the present invention.

Fig. 5 is a schematic diagram of the application of the present invention to the treatment of blockage in the main shaft.

Description of reference numerals: 1-main steel pipe, 11-first internal thread, 2-auxiliary steel pipe, 21-second internal thread, 22-external thread, 3-guide pulley, 31-pulley jacket, 4-nylon rope, 5-explosive package, 6-drop shaft, 7-drop shaft blocking part, 8-detonating cord and 9-unloading roadway.

Detailed Description

Referring to fig. 1-4, the present invention relates to an ascending blasting device for treating the blockage of a chute, which comprises a main steel pipe 1, a plurality of auxiliary steel pipes 2, a guide pulley 3, a nylon rope 4 and an explosive bag 5. Wherein: the main steel pipe 1 and the auxiliary steel pipe 2 are DN25 type steel pipes, the length is 0.7 m-0.8 m, the front end of the main steel pipe 1 is fixed with the guide pulley 3, the tail end is provided with a first internal thread 11, the two ends of the auxiliary steel pipe 2 are respectively provided with a second internal thread 21 and an external thread 22, the external thread 22 is matched with the first internal thread 11 and the second internal thread 21, so that the threads between the auxiliary steel pipe and the main steel pipe and between the auxiliary steel pipes can be matched and screwed; the guide pulley 3 is provided with a pulley outer sleeve 31; the nylon rope 4 passes through the pulley outer sleeve 31 and is wound on the wheel groove of the guide pulley 3; the explosive charge 5 is attached to one end of the nylon rope 4.

When in use, referring to fig. 5, the main steel pipe 1 and the auxiliary steel pipes 2 are connected one by one at the lower part of the drop shaft 6 and extend upwards along the lower part of the drop shaft 6 until the guide pulley 3 at the front end of the main steel pipe 1 reaches the blockage part 7 of the drop shaft, and then the tail end steel pipe is fixed in the drop shaft 6; the method comprises the following steps of tying an explosive bag 5 at one end of a nylon rope 4, drawing the other end of the nylon rope 4, stretching the explosive bag 5 to a chute blocking part 7, detonating the explosive bag 5 through a detonating cord 8 outside a safe distance, damaging the internal balance of ore rocks at the blocking part, loosening the ore rocks, automatically dropping the ore rocks, and dredging the chute.

Claims

1. An ascending type blasting device for treating the blockage of a drop shaft is characterized by comprising a main steel pipe (1), a plurality of auxiliary steel pipes (2), a guide pulley (3), a rope and an explosive bag (5); the front end of the main steel pipe (1) is provided with the guide pulley (3), the tail end of the main steel pipe (1) is sequentially connected with a plurality of auxiliary steel pipes (2), the guide pulley (3) at the front end of the main steel pipe (1) abuts against a chute blockage part (7) when in use, and the rope is wound on a wheel groove of the guide pulley (3); the explosive package (5) is attached to one end of the rope.

2. The blasting apparatus for upward-traveling shaft blockage according to claim 1, wherein the main steel pipe (1) and the auxiliary steel pipes (2) are connected by screw threads, and the auxiliary steel pipes (2) are connected by screw threads.

3. The blasting apparatus for upstroke-type blockage of a chute according to claim 2, wherein the end of the main steel pipe (1) is provided with a first internal thread (11), and the two ends of the secondary steel pipe (2) are respectively provided with a second internal thread (21) and an external thread (22), and the external thread (22) is matched with the first internal thread (11) and the second internal thread (21).

4. The blasting apparatus for upward-traveling shaft blockage treatment according to claim 1, wherein the main steel pipe (1) and the auxiliary steel pipe (2) are made of DN25 type steel pipes and have a length of 0.7-0.8 m.

5. An upstroke shaft blockage blasting apparatus as claimed in claim 1, characterised in that the guide pulley (3) is fitted with a pulley jacket (31) to prevent the rope from leaving the guide pulley (3).

6. An upstroke orestring draw blockage blasting apparatus as claimed in claim 1, wherein the line is a nylon rope (4).

7. The blasting apparatus for upstroke treatment of orepass plugging according to any one of claims 1 to 6, wherein the apparatus is adapted for use with a small-profile orepass having a orepass plugging location at a distance of less than 30m from the bottom of the orepass.