Blasting device for energy-gathered tube

Abstract

The utility model discloses an energy-gathered tube blasting device, relates to the technical field of energy-gathered tubes, and aims to solve the problems of complicated charging process, long charging time and large crack area in the prior art, the energy-gathered tube blasting device comprises a second energy-gathered tube, and a third energy-gathered tube and a first energy-gathered tube are respectively fixed at the left end and the right end of the second energy-gathered tube. Through the first energy-gathering pipe, the second energy-gathering pipe, the third energy-gathering pipe and the powdery emulsion explosive, charging in the energy-gathering pipes is more convenient, the charging time is shortened, meanwhile, the explosive formula can be changed according to the change condition of surrounding rock, the explosive blasting force can be adjusted, and therefore the blasting effect is improved, and meanwhile the special-shaped structure is blasted according to the energy-gathering pipes; different blasting coupling coefficients of the same blast hole are changed, the acting time of the explosive in the rock mass is prolonged, the fracture area in the explosive blasting process is reduced, the crushing area is increased, and the utilization rate of explosive energy is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of energy -gathering pipe, especially to energy -gathering pipe blasting device. BACKGROUND

[0002] At present, in the process of underground mine or tunnel development, the surrounding eye often uses the gelatinous emulsion explosive to carry out smooth blasting with the interval charging of the detonating cord. The traditional energy-gathering blasting tube mostly uses the gelatinous emulsion explosive, and the explosive is generally a packaged finished product, and the loading process into the energy-gathering tube is relatively cumbersome, and the device with this charging structure consumes a long time, and the explosive formula cannot be quickly changed according to the change of surrounding rock, and the blasting coupling coefficient in the traditional energy-gathering blasting tube is the same, so that the crack zone is large in the explosive blasting process.

[0003] Therefore, a powdery emulsion explosive + energy-gathering tube blasting charging device is needed to solve the above problems. SUMMARY

[0004] The utility model aims at at least one of the technical problems in the related art to some extent. Therefore, one purpose of the utility model is to provide an energy-gathering tube blasting device, which reduces the crack zone in the explosive blasting process, increases the crushing zone, and improves the utilization rate of explosive energy.

[0005] The energy-gathering tube blasting device provided by the utility model comprises a second energy-gathering tube, and the left and right ends of the second energy-gathering tube are respectively fixed with a third energy-gathering tube and a first energy-gathering tube.

[0006] The first energy-gathering tube is located at the bottom and has a large pipe diameter, the second energy-gathering tube is located at the middle and has the smallest pipe diameter, and the third energy-gathering tube is located at the top and has the same pipe diameter as the first energy-gathering tube.

[0007] Preferably, the lower part of the first energy-gathering tube is internally fixed with an initiating explosive package for ensuring complete initiation of the explosive.

[0008] Preferably, the inside of the third energy-gathering tube is respectively filled with explosive, water stemming and clay stemming from the bottom, the middle to the uppermost part, the water stemming can extinguish flame, reduce temperature, remove dust and reduce toxic gas, prevent electric spark, and the clay stemming is used to improve the blasting effect.

[0009] Preferably, the top of the third energy-gathering tube is fixed with a support plate, and the left and right ends of the support plate are respectively inserted with bolts which are threadedly connected with the support plate, so that the energy-gathering blasting tube can be fixed according to the energy-gathering direction of the energy-gathering tube.

[0010] Preferably, the inside of the first energy-gathering tube, the second energy-gathering tube and the third energy-gathering tube is respectively provided with an energy-gathering cavity which is penetrated and used for gathering the energy released during the explosion of the explosive into a jet at the energy-gathering joint.

[0011] Preferably, the bottom of the primer bag is fixed with a fixed seat, and the inside center of the fixed seat is fixed with a detonator for detonating explosives.

[0012] Preferably, one end of the detonator is connected with a foot line which is arranged outside the first, second and third shaped charge tubes, and mainly functions to transmit electrical signals from the detonating device to the detonator, thereby achieving the purpose of blasting.

[0013] The beneficial effects of the utility model are: through the first, second and third shaped charge tubes and the powdery emulsion explosive, the charging in the shaped charge tube is more convenient, the charging time is shortened, the explosive formula can be changed according to the change of surrounding rock, the explosive power is adjusted, thereby the blasting effect is improved, according to the shaped charge tube blasting special-shaped structure, the different blasting coupling coefficients of the same blast hole are changed, the action time of the explosive in the rock mass is increased, the crack zone in the blasting process of the explosive is reduced, the broken zone is increased, and the utilization rate of explosive energy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective structural schematic view of the shaped charge tube blasting device provided by the utility model.

[0015] Figure 2 It is a sectional structure schematic view of the shaped charge tube blasting device provided by the utility model.

[0016] Figure 3 It is a shaped charge hole structure schematic view of the shaped charge tube blasting device provided by the utility model.

[0017] Figure 4 It is a shaped charge tube fixing structure schematic view of the shaped charge tube blasting device provided by the utility model.

[0018] In the drawing: 1, first shaped charge tube; 2, second shaped charge tube; 3, third shaped charge tube; 4, fixed seat; 5, primer bag; 6, detonator; 7, water mortar; 8, clay mortar; 9, support plate; 10, bolt; 11, shaped charge hole. DETAILED DESCRIPTION

[0019] Reference Figures 1-4 The shaped charge tube blasting device comprises a second shaped charge tube 2, and the left and right ends of the second shaped charge tube 2 are respectively fixed with a third shaped charge tube 3 and a first shaped charge tube 1.

[0020] The left and right ends of the second shaped charge tube 2 are both provided with integrally-formed external threads, and the end, connected with the second shaped charge tube 2, of the first shaped charge tube 1 and the third shaped charge tube 3 is internally provided with internal threads, and the threaded connection between the second shaped charge tube 2 and the first shaped charge tube 1 and the third shaped charge tube 3 is realized through the mutual engagement of the internal and external threads.

[0021] The powder emulsion explosive has a better flow state than the gel emulsion explosive, and is more convenient to charge in the shaped charge tube, and the charging time is shortened.

[0022] The first shaped charge tube 1 is located at the bottom, the tube body has a large diameter, the second shaped charge tube 2 is located at the middle, the tube body has the smallest diameter, and the third shaped charge tube 3 is located at the top, the tube body has the same diameter as the first shaped charge tube 1. The first shaped charge tube 1 is located at the bottom of the blast hole, and the linear charge density is greater than that of other shaped charge tube structures, which ensures the tunneling footage. The second shaped charge tube 2 is located at the middle of the blast hole, and the tube body has the smallest diameter, and the linear charge density is smaller than that of other shaped charge tube structures, the blasting coupling coefficient is the largest, the action time of the explosive in the rock mass is increased, the crack zone in the blasting process of the explosive is reduced, the broken zone is increased, the utilization rate of the explosive energy is improved, and the same blast hole can be changed according to the blasting special-shaped structure of the shaped charge tube to change the different blasting coupling coefficients, and continuous charging is performed, so that the detonating cord is saved, and the cost of the initiating explosive is saved.

[0023] The first shaped charge tube 1 is fixed with an initiating explosive bag 5 inside the lower part, and the initiating explosive bag 5 can ensure complete detonation of the explosive, improve the blasting effect, and reduce the risk of premature explosion.

[0024] The bottom of the initiating explosive bag 5 is fixed with a fixed seat 4, the inside of the fixed seat 4 is fixed with a detonator 6 at the center, the detonator 6 mainly functions as a device for detonating the explosive, can generate enough energy to detonate the explosive, is the starting point of the explosion chain, and ensures the accuracy and timely occurrence of the explosion.

[0025] The third shaped charge tube 3 is internally filled with explosive, water stemming 7 and clay stemming 8 from the bottom, the middle to the uppermost part, when the explosive in the blast hole explodes, the water stemming 7 can extinguish flame, reduce temperature, remove dust and reduce toxic gas, prevent electric sparks, and the clay stemming 8 can improve the blasting effect and ensure the blasting safety.

[0026] The top of the third shaped charge tube 3 is welded with a support plate 9, bolts 10 are inserted into the left and right ends of the support plate 9 and are screwed with the support plate 9, by inserting the bolts 10 into the ground, the shaped charge tube can be fixed according to the energy gathering direction of the shaped charge tube, the energy gathering hole 11 of the blasting shaped charge tube is accurately positioned.

[0027] The first shaped charge tube 1, the second shaped charge tube 2 and the third shaped charge tube 3 are all provided with a penetrating energy gathering hole 11, so that the energy released when the explosive explodes can be gathered into a jet at the energy gathering seam, thereby cutting the rock mass and obtaining a smooth and flat profile section.

[0028] One end of the detonator 6 is connected with a leg wire, the leg wire is arranged on the outside of the first shaped charge tube 1, the second shaped charge tube 2 and the third shaped charge tube 3, it is a cable connecting the detonator 6 and the initiating device, and mainly functions to transmit the electric signal from the initiating device to the detonator 6, thereby achieving the blasting purpose.

[0029] When the device is used, firstly check whether the quality of the first convergent tube 1, the second convergent tube 2 and the third convergent tube 3 is qualified. Before charging, the rock powder in the blast hole must be removed, the detonating charge 5 is loaded into the bottom of the first convergent tube 1, at the same time, the detonator 6 is fixed in the inner center of the fixed seat 4, at the same time, the powdery emulsion explosive is loaded into the first convergent tube 1, the second convergent tube 2 and the third convergent tube 3 by using the reverse charging structure, which can improve the energy utilization rate of the explosive. The water stemming 7 is firstly filled in the third convergent tube 3, then the clay stemming 8 is filled, the clay stemming 8 must be tamped, the stemming length should not be less than the length of the resistance line, at this time, the first convergent tube 1, the second convergent tube 2 and the third convergent tube 3 are sequentially connected according to the mutual engagement of the inner and outer threads. The detonator 6 foot wire bolt 10 is connected, through the support plate 9 and the bolt 10 installed on the tube opening third convergent tube 3, according to the convergent direction of the convergent tube, the convergent blasting tube is fixed, so that the position of the convergent hole 11 of the blasting convergent tube is accurate. The blasting network is checked, and the blasting is prepared.

Claims

1. A shaped charge device, characterized by: The second energy-gathering tube (2) is fixed with a third energy-gathering tube (3) and a first energy-gathering tube (1) at left and right ends respectively; The first energy-gathering tube (1) is located at the bottom and has a large diameter, the second energy-gathering tube (2) is located at the middle and has the smallest diameter, and the third energy-gathering tube (3) is located at the top and has the same diameter as the first energy-gathering tube (1).

2. The shaped charge of claim 1, wherein: The lower inside of the first energy-gathering tube (1) is fixed with a detonating explosive bag (5).

3. The shaped charge of claim 1, wherein: The inside of the third energy-gathering tube (3) is filled with explosives, water mortar (7) and clay mortar (8) from bottom to top respectively.

4. The shaped charge of claim 1, wherein: The top of the third energy-gathering tube (3) is fixed with a support plate (9), and the left and right ends of the support plate (9) are inserted with bolts (10) which are screwed with the support plate (9).

5. The shaped charge of claim 1, wherein: The inside of the first energy-gathering tube (1), the second energy-gathering tube (2) and the third energy-gathering tube (3) are all provided with a through energy-gathering cavity (11).

6. The shaped charge of claim 2, wherein: The bottom of the detonating explosive bag (5) is fixed with a fixed seat (4), and the inside of the fixed seat (4) is fixed with a detonator (6) at the center.

7. The shaped charge of claim 6, wherein: One end of the detonator (6) is connected with a leg wire, and the leg wire is arranged outside the first energy-gathering tube (1), the second energy-gathering tube (2) and the third energy-gathering tube (3).

Images