CN205784917U - A kind of fracturing cylinder - Google Patents

Abstract

The utility model discloses a cracking cylinder, which comprises a hollow material cylinder and an ignition device arranged in the material cylinder; the ignition device extends out of the material cylinder, and the two ends of the material cylinder are respectively provided with a front cover and a rear cover; The ignition device includes a plug fixed in the front cover and a shell connected with the plug and open at one end. The plug is provided with two pins extending to the outside of the plug, and the shell is provided with a storage box for containing pyrotechnics and is connected with the plug. The extension element is in contact with the pin, and a heating device extending into the extension element is arranged between the liquid storage tank and the extension element. By putting the pyrotechnic agent into the barrel, one end of the barrel is closed, and the other end is provided with a heating device with a resistance wire, and the heating device is connected to an external current through the pin to ignite the pyrotechnic agent. After the pyrotechnic agent is ignited in the cracking barrel, A strong oxidation-reduction reaction will occur and a large amount of high-pressure gas will explode outward, which greatly reduces the vibration effect, noise and the amount of flying rocks, and solves the problems of high labor intensity and low work efficiency of the existing extractor.

Description

a cracker

technical field

The utility model relates to the field of blasting equipment, in particular to a cracking cylinder.

Background technique

At present, the explosive blasting method is the most important method of mining and excavation. Explosive blasting will face disadvantages such as high operational risk, great safety hazards, prone to gun smoke poisoning, and difficulties in explosive production and transportation. In recent years, non-explosive crushing mining and excavation methods have been widely developed and innovated, mainly using machinery, jet flow and gas expansion to do work, and causing rock fragmentation with a small tensile stress.

Using machinery and high-pressure jets to crush rocks has the biggest disadvantages of low efficiency, high labor intensity, equipment required, energy consumption, and a small range of applications. At present, the commonly used carbon dioxide extractor is the carbon dioxide extractor, which uses the instantaneous vaporization of liquid carbon dioxide to release a huge shock wave to do work on the blasting medium, so as to achieve the purpose of rupturing, penetrating and destroying the medium. It is stable, durable, safe, simple to operate and easy to control. , small seismic wave, low cost, wide adaptability and other advantages. It can be applied to the blasting of various metal or non-metal mines, stone, stone, granite, marble, dredging of silos and pipelines, loosening of various boilers after smelting, and can also be used for mountain construction or construction projects, in complex environments Rock excavation close to structures such as residential areas, houses and roads. However, the carbon dioxide extractor uses steel as the raw material of the equipment, and each extractor weighs 20-80kg. From assembly, liquid filling, on-site connection and placement, all equipment is manually operated, and it needs to be transported at least 4 times, which is labor-intensive for workers. It is very heavy and the work efficiency is low. Compared with the convenience and quickness of explosives, these factors have affected the wide application of this technology.

Utility model content

The purpose of the utility model is to provide a cracking cylinder to solve the problems of high labor intensity and low work efficiency of the existing extractor.

In order to achieve the above purpose, the technical solution adopted by the utility model is: provide a cracking cylinder, including a hollow material cylinder and an ignition device arranged in the material cylinder; the ignition device extends out of the material cylinder, and the material cylinder The two ends are respectively provided with a front cover and a rear cover; the ignition device includes a plug fixed in the front cover and a shell connected to the plug and open at one end. The plug is provided with two pins extending outside the plug, and the shell is equipped There is a storage box for containing the pyrotechnic agent and a delay element in contact with the pins, and a heating device extending into the delay element is arranged between the storage box and the delay element.

Preferably, the front cover is provided with a through hole for the ignition device to pass through.

Preferably, blocks are provided on the front cover and the rear cover, and grooves for fixing the blocks are respectively provided at both ends of the barrel.

Preferably, the heating device is an ignition head, one end of which is inserted into the delay element.

In summary, the utility model has the following advantages:

1. In this utility model, the pyrotechnic agent is loaded into the barrel, one end of the barrel is closed, and the other end is provided with a heating device with a resistance wire, and the heating device is connected to an external current through the pin to ignite the pyrotechnic agent. After being ignited in the cracking cylinder, a strong oxidation-reduction reaction will occur and a large amount of high-pressure gas will explode outward, which greatly reduces the vibration effect, noise and the amount of flying rocks, and solves the labor intensity of the carbon dioxide extractor in the existing non-explosive mining technology Large and low work efficiency.

2. When the high-temperature and high-pressure gas bursting from the cracking cylinder encounters air, both the pressure and temperature will drop. When the temperature drops below the boiling point of the reaction product, the gas will become solid and no toxic gas will be produced, greatly reducing air pollution.

3. Compared with the carbon dioxide extractor, the cracking cylinder of the present invention does not require gas storage tanks, filling equipment and connecting rod equipment, so it has the advantages of simple operation, convenient use, safety and reliability, and easy handling.

Description of drawings

Fig. 1 is the schematic diagram of the utility model cracking cylinder;

Fig. 2 is the schematic diagram of ignition device of the present utility model;

Among them, 1. Front cover; 2. Ignition device; 3. Barrel; 4. Block; 5. Back cover; 20. Shell; 21. Pin; 22. Plug; ; 25, storage tank.

detailed description

Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in detail.

In one embodiment of the present utility model, as shown in Figures 1 and 2, a cracking cylinder is provided, including a hollow material cylinder 3 and an ignition device 2 arranged in the material cylinder 3; the ignition device 2 extends out Outside the barrel 3, the two ends of the barrel 3 are respectively provided with a front cover 1 and a rear cover 5; the ignition device 2 includes a plug 22 fixed in the front cover 1 and a shell 20 connected to the plug 22 and having one end open, the plug 22 is provided with two pins 21 extending to the outside of the plug 22, and the housing 20 is provided with a storage box 25 for containing pyrotechnics and a delay element 23 in contact with the pins 21. The gap between the storage box 25 and the delay element 23 A heating device 24 protruding into the extension element 23 is arranged between them.

In an optimized embodiment of the present utility model, the front cover 1 is provided with a through hole for the ignition device 2 to pass through; The groove of the block 4; the heating device 24 is an ignition head, one end of which is inserted into the extension element 23. The pin 21 is used to connect the power supply, the plug 22 is used to fix the foot wire 21 and other parts of the ignition device, the delay element 23 can be detonated according to engineering needs, and the pyrotechnic agent in the storage tank 25 is to generate enough heat Make the pyrotechnic agent in the barrel 3 react strongly.

The barrel 3 contains a pyrotechnic agent, which is mainly a mixture of metal oxidizers (MnO ₂ , CuO, Fe ₃ O ₄ ), metal reducing agent (Al) powder and nitric acid in a certain proportion; Pin 21 is powered on to generate combustion, thereby igniting the pyrotechnic agent in the cracking tube. Because the pyrotechnic agent is packed into the solid barrel 3, one end is closed, and the other end is provided with a heating device 24 with a resistance wire, and an external current is connected through the pin 21, so that the heating device 24 ignites the pyrotechnic agent, and the pyrotechnic agent is After being ignited in the closed fracturing cylinder, a strong oxidation-reduction reaction will occur and a large amount of high-pressure gas will be generated. When the expansion pressure of the gas exceeds the tensile strength of the medium (rock, concrete, etc.), the medium will be ruptured and cracks will appear At the same time, the gaseous products penetrate into the cracks, and the cracks are further expanded through the wedge effect of the gas, resulting in the penetration of cracks in blastholes (holes drilled in the rock drilling process in blasting engineering). When the burst high-temperature and high-pressure gas encounters the air, both the pressure and temperature will decrease. When the temperature drops below the boiling point of the reaction product, the gas will become solid and no toxic gas will be produced, greatly reducing air pollution.

The cracking cylinder can not only be widely used in the excavation and mining of various metal or non-metal mines, stone materials, stone materials, granite, marble mine soft rock, medium rock and hard rock, but also can be used in pipeline dredging and large block crushing Civil engineering such as building demolition and site leveling; rock excavation near residential areas, houses, roads and other structures with complex environments; roadway and tunnel engineering.

Although the specific implementation of the utility model has been described in detail in conjunction with the accompanying drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and deformations that can be made by those skilled in the art without creative work still belong to the protection scope of this patent.

Claims (4)

1. A cracking cylinder, characterized in that: it includes a hollow barrel (3) and an ignition device (2) arranged in the barrel; the ignition device (2) extends out of the barrel, and the The two ends of the barrel (3) are respectively provided with a front cover (1) and a rear cover (5); the ignition device (2) includes a plug (22) fixed in the front cover and a plug connected to the plug with one end open. The housing (20) of the plug is provided with two pins (21) extending to the outside of the plug, and the housing (20) is provided with a storage box (25) for containing the pyrotechnic agent and contacts with the pins The extension element (23), the heating device (24) extending into the extension element is provided between the storage tank (25) and the extension element (23). 2. The cracking cartridge according to claim 1, characterized in that: the front cover (1) is provided with a through hole for the ignition device to pass through. 3. The cracking cylinder according to claim 1, characterized in that: the front cover (1) and the rear cover are provided with clamping blocks (4), and the two ends of the barrel are respectively provided with concave holes for fixing the clamping blocks. groove. 4. The cracking cartridge according to claim 1, characterized in that: the heating device (24) is an ignition head, one end of which is inserted into the delay element.