Apparatus and method for enhancing the initiation energy of a blast

Abstract

This invention discloses a device and method for enhancing the initiation energy of explosive blasting. The device includes: a connecting rod with a groove on one side for placing a detonating cord; an explosive charge mounting plate evenly fitted onto the connecting rod, the upper end of which holds explosive charges, and several explosive charges connected in series via detonating cords; the mounting plate also has several explosive energy channels extending through it, the inner diameter of which decreases from both sides towards the center to reflect energy during blasting; each energy channel includes a first reflecting cavity, a connecting cavity, and a second reflecting cavity connected in sequence, the inner diameter of which decreases from the outside to the inside. The device for enhancing the initiation energy of explosive blasting of this invention has a simple structure and can effectively enhance the initiation energy of explosive blasting.

Description

Technical Field

[0001] This invention relates to the field of blasting technology, and more particularly to a device and method for enhancing the initiation energy of blasting. Background Technology

[0002] In rock blasting, the method of interval blasting with explosive charges is often used, with each charge connected by a detonating cord. However, existing initiation devices simply set the charges at intervals, resulting in poor blasting effect. Therefore, developing a device and method that can enhance the blasting initiation energy is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0003] Based on the technical problems existing in the background art, the present invention proposes a device and method for enhancing the blasting initiation energy. The device has a simple structure and can effectively enhance the blasting initiation energy.

[0004] The device for enhancing the initiation energy of explosive blasting proposed in this invention includes:

[0005] The connecting rod has a slot on one side for placing the detonating cord;

[0006] A charge mounting plate is evenly fitted onto the connecting rod. The upper end of the charge mounting plate is used to place explosive charges. Several explosive charges are connected in series by detonating cord.

[0007] The explosive charge mounting plate is also provided with several explosive energy channels, the inner diameter of which decreases from both sides to the center to achieve energy reflection during explosion.

[0008] Preferably, the energy channel includes a first reflective cavity, a connecting cavity, and a second reflective cavity connected in sequence, wherein the inner diameters of the first reflective cavity and the second reflective cavity decrease from the outside to the inside.

[0009] Preferably, the distance between adjacent medicine pack mounting plates is adjustable.

[0010] Preferably, the lower end of the medicine pack mounting plate is also fixedly provided with several protrusions.

[0011] Preferably, the protrusion has an irregular shape.

[0012] Preferably, it also includes an energy constraint sleeve fitted on the connecting rod, with an energy constraint sleeve provided above each explosive charge, and the energy constraint sleeve having an opening on the side near the explosive charge.

[0013] Preferably, the position of the energy constraint sleeve on the connecting rod is adjustable so that the energy constraint sleeve presses on top of the explosive charge and forms a cavity therewith.

[0014] Preferably, the connection between the detonating cord and the explosive charge is located in the cavity formed by the explosive charge and the energy confinement sleeve.

[0015] The method of using the device for enhancing the initiation energy of explosive blasting proposed in this invention comprises the following steps:

[0016] S1: Fix the explosive charge mounting plate to the connecting rod at the preset position, place the explosive charge on the explosive charge mounting plate, and connect it to the explosive charge via a detonating cord. The detonating cord is placed in the slot of the connecting rod.

[0017] S2: An energy constraint sleeve is fitted onto the connecting rod, and the energy constraint sleeve is pressed above the explosive charge to form a cavity with it, and the connection between the detonating cord and the explosive charge is located in the cavity formed by the explosive charge and the energy constraint sleeve;

[0018] S3: Repeat S1 and S2, and set multiple sets of explosive charge mounting plates, explosive charges and energy confinement sleeves on the connecting rod. Adjacent explosive charges are connected by detonating cords, and an explosive charge mounting plate is set above the uppermost explosive charge.

[0019] S4: Place the installed device for enhancing the blasting initiation energy into the blasting hole, and connect the detonating cords extending from the connecting rods in each blasting hole to form a blasting network.

[0020] Beneficial technical effects:

[0021] This application features an energy constraint sleeve on the connecting rod that presses against the explosive charge and forms a cavity with it. The connection between the detonating cord and the explosive charge is located within the cavity formed by the explosive charge and the energy constraint sleeve, which can constrain the energy generated by the detonating cord, thereby improving the effect of the detonating cord in detonating the explosive charge. The inner diameter of the explosive energy channel on the explosive charge mounting plate decreases from both sides towards the center to achieve energy reflection during detonation. Through energy reflection, the explosive energy accumulates in the space formed by adjacent explosive charge mounting plates, which can suppress the diffusion of explosive energy and thus improve the detonation effect of the explosive charge. The irregularly shaped protrusions can also reflect the explosive energy back at different angles, further suppressing the diffusion of explosive energy. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the device for enhancing the initiation energy of explosive blasting proposed in this invention;

[0023] Figure 2 This is a partial AA structural schematic diagram of the device for enhancing blasting initiation energy proposed in this invention;

[0024] Figure 3 This is a top view of the device for enhancing the initiation energy of explosive blasting proposed in this invention.

[0025] In the figure: 1-connecting rod, 2-explosive charge mounting plate, 3-explosive charge, 4-energy confinement sleeve, 5-protrusion, 6-detonating cord, 7-explosive energy channel, 8-first reflective cavity, 9-connecting cavity, 10-second reflective cavity, 11-placement slot. Detailed Implementation

[0026] The device for enhancing the initiation energy of explosive blasting proposed in this invention includes:

[0027] The connecting rod 1 has a slot 11 on one side for placing the detonating cord 6;

[0028] The explosive charge mounting plate 2 is evenly fitted onto the connecting rod 1. The upper end of the explosive charge mounting plate 2 is used to place the explosive charge 3. Several explosive charges 3 are connected in series by detonating cord 6.

[0029] The explosive charge mounting plate 2 is also provided with a plurality of explosive energy channels 7. The inner diameter of the explosive energy channels 7 decreases from both sides to the center to achieve the reflection of energy during the explosion. Specifically, the energy channel includes a first reflection cavity 8, a connecting cavity 9 and a second reflection cavity 10 connected in sequence. The inner diameter of the first reflection cavity 8 and the second reflection cavity 10 decreases from the outside to the inside.

[0030] To improve the adaptability of the device, the distance between adjacent medicine pack mounting plates 2 is adjustable. The connection between the medicine pack mounting plate 2 and the connecting rod 1 can be made by means of threaded connection, snap-fit, screw, etc.

[0031] To further improve the blasting effect, several protrusions 5 are fixedly installed at the lower end of the explosive charge mounting plate 2; specifically, the protrusions 5 are irregular in shape.

[0032] To improve the detonation effect of the detonating cord 6 on the explosive charge 3, an energy confinement sleeve 4 is also included, which is sleeved on the connecting rod 1. Each explosive charge 3 is provided with an energy confinement sleeve 4 above it. The energy confinement sleeve 4 has an opening on the side near the explosive charge 3. The position of the energy confinement sleeve 4 on the connecting rod 1 is adjustable so that the energy confinement sleeve 4 presses on the explosive charge 3 and forms a cavity with it. The connection between the detonating cord 6 and the explosive charge 3 is located in the cavity formed by the explosive charge 3 and the energy confinement sleeve 4.

[0033] This application features an energy constraint sleeve on the connecting rod that presses against the explosive charge and forms a cavity with it. The connection between the detonating cord and the explosive charge is located within the cavity formed by the explosive charge and the energy constraint sleeve, which can constrain the energy generated by the detonating cord, thereby improving the effect of the detonating cord in detonating the explosive charge. The inner diameter of the explosive energy channel on the explosive charge mounting plate decreases from both sides towards the center to achieve energy reflection during detonation. Through energy reflection, the explosive energy accumulates in the space formed by adjacent explosive charge mounting plates, which can suppress the diffusion of explosive energy and thus improve the detonation effect of the explosive charge. The irregularly shaped protrusions can also reflect the explosive energy back at different angles, further suppressing the diffusion of explosive energy.

[0034] The method for using the device for enhancing the initiation energy of explosive blasting proposed in this invention comprises the following steps:

[0035] S1: Fix the explosive charge mounting plate to the connecting rod at the preset position, place the explosive charge on the explosive charge mounting plate, and connect it to the explosive charge via a detonating cord. The detonating cord is placed in the slot of the connecting rod.

[0036] S2: An energy constraint sleeve is fitted onto the connecting rod, and the energy constraint sleeve is pressed above the explosive charge to form a cavity with it, and the connection between the detonating cord and the explosive charge is located in the cavity formed by the explosive charge and the energy constraint sleeve;

[0037] S3: Repeat S1 and S2, and set multiple sets of explosive charge mounting plates, explosive charges and energy confinement sleeves on the connecting rod. Adjacent explosive charges are connected by detonating cords, and an explosive charge mounting plate is set above the uppermost explosive charge.

[0038] S4: Place the installed device for enhancing the blasting initiation energy into the blasting hole, and connect the detonating cords extending from the connecting rods in each blasting hole to form a blasting network.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for enhancing the initiation energy of an explosive charge, characterised in that, include: The connecting rod has a slot on one side for placing the detonating cord; A charge mounting plate is evenly fitted onto the connecting rod. The upper end of the charge mounting plate is used to place explosive charges. Several explosive charges are connected in series by detonating cord. The explosive charge mounting plate is also provided with several explosive energy channels, the inner diameter of which decreases from both sides to the center to achieve energy reflection during explosion. The energy channel includes a first reflective cavity, a connecting cavity, and a second reflective cavity connected in sequence, with the inner diameters of the first reflective cavity and the second reflective cavity decreasing from the outside to the inside. It also includes an energy confinement sleeve fitted on the connecting rod. Each explosive charge has an energy confinement sleeve above it, and the energy confinement sleeve has an opening on the side near the explosive charge. The position of the energy constraint sleeve on the connecting rod is adjustable so that the energy constraint sleeve presses on top of the explosive charge and forms a cavity with it; The connection between the detonating cord and the explosive charge is located in the cavity formed by the explosive charge and the energy confinement sleeve.

2. The device for enhancing blasting initiation energy according to claim 1, characterized in that, The distance between adjacent medicine pack mounting plates is adjustable.

3. The device for enhancing blasting initiation energy according to claim 1, characterized in that, The lower end of the medicine pack mounting plate is also fixedly provided with several protrusions.

4. The device for enhancing blasting initiation energy according to claim 3, characterized in that, The protrusion has an irregular shape.

5. The method of using the device for enhancing blasting initiation energy as described in any one of claims 1-4, characterized in that, The steps are as follows: S1: Fix the explosive charge mounting plate to the connecting rod at the preset position, place the explosive charge on the explosive charge mounting plate, and connect it to the explosive charge via a detonating cord. The detonating cord is placed in the slot of the connecting rod. S2: An energy constraint sleeve is fitted onto the connecting rod, and the energy constraint sleeve is pressed above the explosive charge to form a cavity with it, and the connection between the detonating cord and the explosive charge is located in the cavity formed by the explosive charge and the energy constraint sleeve; S3: Repeat S1 and S2, and set multiple sets of explosive charge mounting plates, explosive charges and energy confinement sleeves on the connecting rod. Adjacent explosive charges are connected by detonating cords, and an explosive charge mounting plate is set above the uppermost explosive charge. S4: Place the installed device for enhancing the blasting initiation energy into the blasting hole, and connect the detonating cords extending from the connecting rods in each blasting hole to form a blasting network.

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