Energy storage bag for liquid oxygen blasting

Abstract

The utility model discloses an energy storage bag for liquid oxygen blasting, which comprises a bag cap, the bag cap comprises a cap roof and a cap brim, the cap roof is provided with an exhaust pipe interface, an oxygen injection pipe interface and a cable interface, the cable interface is provided with a sealing sheet, and the sealing sheet is provided with a notch for a cable to pass through; the bag body is a cylinder, the top end of the bag body is connected to the bottom of the outer side wall of the cap brim in a sealed mode, and the bottom end of the bag body is sealed after adsorptive combustible agents and an electric spark plug are contained in the bag body; the bag cap and the bag body are both made of plastics. The device is simple in structure, convenient to use and good in sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of mining blasting, and in particular to an energy storage bag for liquid oxygen blasting. Background Technology

[0002] Liquid oxygen blasting is a blasting method that uses liquid oxygen as an oxidizer. Its core principle is to utilize the strong oxidizing properties of liquid oxygen and the rapid reaction with fuel to form a controllable energy release, which triggers the phase change and vaporization of liquid oxygen, forming a high-pressure shock wave that causes an explosion. It is an economical alternative to traditional blasting technology.

[0003] Traditional liquid oxygen blasting involved placing an oxygen storage tank inside the borehole, containing an absorbent combustible agent and an electric spark plug, and then injecting liquid oxygen into the tank. Because the storage tank was made of rigid material, a gap existed between the tank and the borehole after placement, limiting the amount of liquid oxygen injected and the effective use of the borehole. Through extensive practice and improvement, the rigid storage tank has been largely optimized into a flexible energy storage bag. This structure allows the flexible bag to fit snugly against the borehole wall, maximizing oxygen storage within the borehole and significantly improving the blasting effect.

[0004] Commonly used energy storage bags are simple in construction and cylindrical in shape, making them unsuitable for the varying depths of boreholes at work sites, resulting in significant waste in their application. Furthermore, modular energy storage bags have poor sealing performance, hindering air venting during oxygen injection and leading to unsatisfactory practical results. Therefore, an innovative, specialized energy storage bag is developed that integrates the bag opening with the oxygen injection pipe, exhaust pipe, and electrical wire (for powering the spark plug) for a seamless seal, simplifying operation and improving sealing performance. Summary of the Invention

[0005] In view of this, it is necessary to provide an energy storage bag for liquid oxygen explosion that is simple in structure, easy to use, and has good sealing effect.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: an energy storage bag for liquid oxygen explosion, comprising:

[0007] The bag cap includes a top and a brim. The top has an exhaust pipe interface, an oxygen injection pipe interface and a cable interface. The cable interface has a sealing plate with a cutout for the cable to pass through.

[0008] The bag body is a cylindrical body. The top of the bag body is sealed to the bottom of the outer wall of the brim. The bottom of the bag body is sealed after the absorbent flammable agent and the electric spark plug are placed inside the bag body.

[0009] Both the bag cap and the bag body are made of plastic.

[0010] Furthermore, the exhaust pipe interface protrudes from the top surface of the roof to facilitate connection of the exhaust pipe.

[0011] Furthermore, the top end of the oxygen injection pipe interface protrudes from the top surface of the roof to facilitate connection of the oxygen injection pipe, and the bottom end of the oxygen injection pipe interface protrudes from the bottom surface of the roof.

[0012] Furthermore, the sealing sheet is a rubber sheet.

[0013] Furthermore, the incision is a cross-shaped incision.

[0014] Furthermore, double-sided adhesive tape is attached around the bottom of the outer side wall of the brim.

[0015] Furthermore, the double-sided adhesive is provided in two rings along the axial direction of the brim.

[0016] Furthermore, the bottom of the bag body is thermoplastically sealed after the absorbent flammable agent and electric spark plug are placed inside the bag body.

[0017] Compared with the prior art, the present invention has the following advantages: the device has a simple structure and can cut the bag body of appropriate length on site according to the depth of the blast hole, without causing waste. The exhaust pipe, oxygen injection pipe and cable all have good sealing performance. The structure is simple, easy to use and has good overall airtightness.

[0018] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0020] Figure 2 This is a perspective view of the bag cap in an embodiment of this utility model.

[0021] Figure 3 This is a cross-sectional view of the bag cap in an embodiment of this utility model.

[0022] Figure 4 This is a schematic diagram showing the usage state in an embodiment of this utility model.

[0023] In the diagram: 1-bag cap, 11-exhaust pipe interface, 12-oxygen injection pipe interface, 13-cable interface, 14-cross cut, 15-double-sided tape, 2-bag body, 3-absorbent combustible agent, 4-oxygen delivery pipe, 5-electric spark plug, 51-cable, 6-exhaust pipe, 7-oxygen injection pipe. Detailed Implementation

[0024] To further illustrate the technical means and effects of this utility model in achieving its intended purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0025] like Figure 1-4 As shown, an energy storage bag for liquid oxygen blasting includes: a bag cap 1 and a bag body 2; in order to make the bag body 2 fit as closely as possible to the inner wall of the blast hole during oxygen injection, so as to store more liquid oxygen in the bag body 2, both the bag cap 1 and the bag body 2 are made of plastic.

[0026] The bag cap 1 includes a top and a brim, and the top has an exhaust pipe interface 11, an oxygen injection pipe interface 12 and a cable interface 13.

[0027] The exhaust pipe interface 11 protrudes from the top surface of the roof to facilitate connection of the exhaust pipe 6.

[0028] The top end of the oxygen injection pipe interface 12 protrudes from the top surface of the roof to facilitate connection of the oxygen injection pipe 7; the bottom end of the oxygen injection pipe interface 12 protrudes from the bottom surface of the roof to facilitate connection of the oxygen delivery pipe 4. The oxygen delivery pipe 4 extends into the bottom of the bag body 2 so that liquid oxygen flows out from the bottom of the bag body 2, thereby expelling the air inside the bag body 2.

[0029] The cable interface 13 has a sealing sheet, which is a rubber sheet with a cutout for the cable to pass through. In order to achieve a better sealing effect when the cable passes through the cutout, the cutout is a cross cut 14.

[0030] The bag body 2 is a cylindrical body. The top of the bag body 2 is sealed and connected to the bottom of the outer wall of the brim. The bottom of the bag body is sealed after the absorbent flammable agent and electric spark plug are installed inside the bag body.

[0031] In this embodiment, in order to better seal the connection between the cap 1 and the body 2, double-sided adhesive 15 is attached around the bottom of the outer side wall of the cap brim. To further ensure the sealing of the connection between the two, the double-sided adhesive 15 is arranged in two rings along the axial direction of the cap brim.

[0032] In this embodiment, the bottom of the bag body 2 is thermoplastically sealed after the absorbent flammable agent and the electric spark plug are placed inside the bag body.

[0033] The device is used as follows: First, prepare the bag cap 1, and then prepare the exhaust pipe 6 (compatible with the diameter of the exhaust pipe interface 11), the oxygen injection pipe 7 (compatible with the diameter of the oxygen injection pipe interface 12), and the oxygen delivery pipe 4. Measure the depth of the borehole on-site, and cut the bag body to the corresponding length based on the measurement results. Attach the front end of the bag body 2 to the double-sided adhesive 15 on the cap brim. Then connect the exhaust pipe 6, oxygen injection pipe 7, and oxygen delivery pipe 4. Apply glue to the connection ports of the exhaust pipe 6, oxygen injection pipe 7, and oxygen delivery pipe 4 during connection to ensure these components do not detach and guarantee a seal. Then, thread the cable 51 through the cross-cut. Place the absorbent combustible agent 3 (usually paper medium) inside the bag body. Position the bottom end of the oxygen delivery pipe at the bottom of the bag body. Tie the spark plug 5 to the absorbent combustible agent 3, connect the cable 51, and heat-seal the bottom end of the bag body 2. Then, place the entire device into the borehole and inject liquid oxygen.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An energy storage bag for liquid oxygen explosion, characterized in that, include: The bag cap includes a top and a brim. The top has an exhaust pipe interface, an oxygen injection pipe interface and a cable interface. The cable interface has a sealing plate with a cutout for the cable to pass through. The bag body is a cylindrical body. The top of the bag body is sealed to the bottom of the outer wall of the brim. The bottom of the bag body is sealed after the absorbent flammable agent and the electric spark plug are placed inside the bag body. Both the bag cap and the bag body are made of plastic.

2. The energy storage bag for liquid oxygen explosion according to claim 1, characterized in that: The exhaust pipe interface protrudes from the top surface of the roof to facilitate connection of the exhaust pipe.

3. The energy storage bag for liquid oxygen explosion according to claim 1, characterized in that: The top end of the oxygen injection pipe interface protrudes from the top surface of the roof to facilitate connection of the oxygen injection pipe, and the bottom end of the oxygen injection pipe interface protrudes from the bottom surface of the roof.

4. The energy storage bag for liquid oxygen explosion according to claim 1, characterized in that: The sealing sheet is a rubber sheet.

5. The energy storage bag for liquid oxygen explosion according to claim 4, characterized in that: The incision is a cross-shaped incision.

6. The energy storage bag for liquid oxygen explosion according to claim 1, characterized in that: The bottom of the outer side wall of the cap brim is wrapped with double-sided adhesive tape.

7. The energy storage bag for liquid oxygen explosion according to claim 6, characterized in that: The double-sided adhesive tape has two rings along the axial direction of the brim.

8. The energy storage bag for liquid oxygen explosion according to claim 1, characterized in that: The bottom of the bag is thermoplastically sealed after the absorbent flammable agent and electric spark plug are placed inside the bag.

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