An auxiliary device for decoupled explosive charges and its construction method

Abstract

This invention discloses an auxiliary device for decoupled explosive charges, comprising: a partition with an accommodating space, the top and sides of which are open; a partition width selected to match the blasting parameters, the required decoupled explosive charge coefficient, and the borehole diameter; a locking position located at the bottom of the partition; two baffle plates inserted parallel and spaced apart along the length of the partition into the locking position; an elastic element inserted into the locking position with elastic deformation, its two ends connected to corresponding baffle plates; and a rope, one end of which is tied to the elastic element, and the other end extending outward through the partition; wherein, when the rope pulls the elastic element and the two baffle plates away from the locking position, the two ends of the elastic element spring back the baffle plates connected to it, the springing distance of the baffle plates being 6-10 cm. The invention also includes a construction method for the auxiliary device.

Description

Technical Field

[0001] This invention relates to an auxiliary device for uncoupled explosive charges and its construction method. Background Technology

[0002] Blasting is a common method for earthwork excavation. However, traditional blasting methods suffer from the problem of coupled charges, where the interaction between explosive charges leads to unstable blasting results. To address this issue, the decoupled charge smooth blasting method has emerged.

[0003] Smooth blasting refers to a controlled blasting technique that uses correct blasting parameters and reasonable construction methods to perform micro-delay blasting in sections and segments, so that the blasted outline meets the design requirements and the free face is flat and regular.

[0004] When performing smooth blasting or pre-splitting blasting, decoupled charges are required. However, the current charging method usually involves using bamboo strips or plastic hoses to create a space between the explosive and the borehole wall to form a decoupled charge. Because the traditional charging method is inefficient and it is not easy to control the size of the gap, the success rate of decoupled charges is low. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an auxiliary device for uncoupled explosive charges.

[0006] In order to achieve the above-mentioned objectives of the present invention, the following technical solution is adopted:

[0007] An auxiliary device for decoupled explosive charges includes a partition with an accommodating space, the top and sides of which are open; a required decoupling coefficient is determined based on blasting parameters, and the borehole diameter is calculated using the decoupling coefficient; the width of the partition is then selected to match the borehole diameter; a locking position is located at the bottom of the partition; two baffle plates are inserted into the locking position parallel to each other along the length of the partition; an elastic element is inserted into the locking position with elastic deformation, and its two ends are connected to corresponding baffle plates; and a rope, one end of which is tied to the elastic element, and the other end extends outward through the partition; wherein, when the rope pulls the elastic element and the two baffle plates away from the locking position, the two ends of the elastic element spring back the baffle plates connected to it, and the baffle plates spring back a distance of 6-10 cm.

[0008] As a further improvement to the technical solution, the elastic element is a triangular spring stop.

[0009] As a further improvement to the technical solution, the card slot is provided with a card groove, which is used to install an elastic element and cause the elastic element to undergo elastic deformation and have elastic potential energy.

[0010] As a further improvement to the technical solution, the partition includes two vertical plates that are spaced apart and parallel to each other.

[0011] As a further improvement to the technical solution, the two vertical plates are spaced apart and run parallel to form the baffle card slot of the baffle card.

[0012] As a further improvement to the technical solution, the partition is a cuboid with a length of 8-12m, a width of 6-10cm, and a thickness of 1cm.

[0013] As a further improvement to the technical solution, the partition, the card slot, and the baffle card are all insulators.

[0014] As a further improvement to the technical solution, the insulator is any one of phenolic resin fiberglass board or resin board.

[0015] A construction method for an auxiliary device for decoupled explosive charges, the method comprising: placing a locking device with elastic elements and a partition plate into the hole to be blasted; the elastic elements are attached to ropes; by pulling the ropes, the elastic elements are pulled up from the locking device; after the elastic elements are fully inserted into the accommodating space, the elastic elements elastically reset themselves, thus the two ends of the elastic elements will pop open the baffles that are in contact with them; the two baffles in the partition plate separate the blast hole, forming a sealed space, and then decoupled explosive charges are charged.

[0016] The advancements of this invention compared to existing technologies are as follows:

[0017] 1. This invention effectively separates blast holes. A suitable partition is selected based on the blast hole parameters. The partition is inserted into the blast hole, and then a rope is used to pull an elastic element and baffle clips out of their locking positions. After the elastic element disengages, it springs open the baffle clips at both ends, which slide towards the inner wall of the blast hole via the partition. The top of the baffle clip located at the blast hole opening can be moved towards the inner wall of the blast hole by the blasting personnel. Therefore, the partition and two baffle clips separate the blast hole, allowing for decoupled charging of explosives.

[0018] 2. The elastic element of the present invention adopts a triangular spring clip, which can facilitate compression and elastic deformation installation in the clip position, and also facilitate the smooth disengagement of the triangular spring clip and the baffle clips on both ends from the clip position when the rope is pulled, which can effectively prevent the baffle clips from being stuck in the clip position by the elastic element.

[0019] 3. This invention has a simple structure, with the main body consisting only of a partition and a baffle card. It is simple to use and easy to learn; different partition sizes can be selected according to different hole diameters and depths. The auxiliary device is inexpensive and easy to manufacture. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the structure of an auxiliary device for uncoupled charge loading according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the elastic element that springs open the baffle card in this invention;

[0023] Figure 3 This is a side view of the present invention;

[0024] The serial numbers in the diagram and their corresponding component names are as follows:

[0025] 1-Rope, 2-Divider, 3-Baffle card slot, 4-Baffle card, 5-Elastic element, 6-Card position. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments in this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0027] like Figure 1-3 As shown, this embodiment of an auxiliary device for decoupled explosive charges includes a partition 2, a locking position 6, an elastic element 5, a rope 1, and two baffle cards 4. The partition 2 has an accommodating space, with its top and sides open. A required decoupling coefficient is determined based on the blasting parameters, and the borehole diameter is calculated using this coefficient. The width of the partition 2 is then selected to match the borehole diameter. The locking position 6 is located at the bottom of the partition 2. The two baffle cards 4 are inserted parallel to each other along the length of the partition 2 into the locking position 6. The elastic element 5 is inserted into the locking position 6 with elastic deformation, and its two ends are connected to the corresponding baffle cards 4. One end of the rope 1 is tied to the elastic element 5, and the other end extends outward through the partition 2. When the rope 1 pulls the elastic element 5 and the two baffle cards 4 away from the locking position 6, the two ends of the elastic element 5 spring back from the connected baffle cards 4, with the baffle cards 4 springing back a distance of 6-10 cm.

[0028] The partition 1 and the baffle card 4 form the main structure of the auxiliary device of this invention, providing primary support. The baffle card is spring-loaded open by the elastic element and moves along the inside of the partition towards the side wall of the borehole, thus adjusting the distance between the baffle card and the side wall of the borehole.

[0029] The deflector card 4 springs open at a distance of 6-10cm. The spacing can be selected as 6cm, 7cm, 8cm, 9cm, or 10cm, etc. Of course, it is not limited to this distance. The appropriate spacing should be selected based on the requirements of the blasting operation.

[0030] Understandably, the elastic element, as the force-applying element, loses its restraining compression after being pulled out of the locking position by the rope. It then elastically resets itself by its own elastic deformation. As both ends extend outward, they push the corresponding baffle cards, causing the baffle cards to move along the inside of the partition towards the side wall of the blast hole.

[0031] In some alternative embodiments, one structure of the elastic element is provided. The elastic element is a triangular spring stop. This allows for better pulling of the baffle card out of the slot and effectively prevents the baffle card from getting stuck in the slot.

[0032] In some optional embodiments, a structure is provided in which the elastic element is mounted in the locking position. The locking position 6 is provided with a slot for mounting the elastic element 5, which causes the elastic element to undergo elastic deformation and possess elastic potential energy. The locking position allows the elastic element to store elastic potential energy in advance. Therefore, when the elastic element is released from the locking position, it loses its restraining effect and elastically resets itself, extending to both ends, thus popping open the baffle card that is in contact with its end face.

[0033] In some alternative embodiments, one structure of the partition is provided. The partition comprises two vertical plates that are spaced apart and parallel to each other.

[0034] In this embodiment, two vertical plates are spaced apart and parallel to form the baffle card slot of the baffle card.

[0035] In some alternative embodiments, one structural shape of the partition is provided. The partition is a cuboid, 8–12 m long, 6–10 cm wide, and 1 cm thick.

[0036] One type of partition structure is as follows: the partition is 8m long, 10cm wide, and 1cm thick.

[0037] Another structure of the partition is: the partition is 12m long, 10cm wide, and 1cm thick.

[0038] Another structure of the partition is: the partition is 10m long, 8cm wide, and 1cm thick.

[0039] It is understandable that the partition is not limited to the structure described above. The appropriate partition parameters can be selected according to the hole depth and hole diameter.

[0040] In some alternative embodiments, the partitions, locking positions, and baffles are all insulators. This prevents electrical conductivity between them, ensuring that the explosion can be achieved.

[0041] In some alternative embodiments, the insulator is either a phenolic resin fiberglass board or a resin board.

[0042] Phenolic resin fiberglass board is made by using phenolic resin as the matrix and glass fiber as the reinforcing material. It has better corrosion resistance, wear resistance, fatigue resistance and high-temperature performance.

[0043] Resin boards are characterized by recyclability, excellent impact resistance, strong mechanical properties, and resistance to chemical corrosion.

[0044] According to the above-mentioned construction method of the auxiliary device for decoupled explosive charge of the present invention, the construction method includes: placing a locking position with elastic elements and a partition plate into the hole to be blasted, the elastic elements are tied with ropes, and by pulling the ropes, the elastic elements are pulled up from the locking position. After the elastic elements are fully inserted into the accommodating space, the elastic elements elastically reset themselves. Therefore, the two ends of the elastic elements will pop open the baffle cards that are in contact with them. The two baffle cards in the partition plate separate the blast hole to form a sealed space, and then decoupled explosive charge is carried out.

[0045] Understandably, the elastic element is a triangular spring stop, and the distance at which the stop card is ejected can be set according to the triangular spring stop. The distance at which the stop card is ejected is 6 to 10 cm.

[0046] It should be noted that this invention is installed into the blast hole as needed. After installation, pulling the rope outward causes the triangular spring stop and the two baffle plates to simultaneously disengage from their positions. Upon disengagement, the two ends of the triangular spring stop spring open the baffle plates connected to them, pushing the baffle plates towards the side wall of the blast hole, thus adjusting the distance between the baffle plates and the side wall. The two baffle plates, located at the top of the blast hole opening, can be moved by blasting personnel to the predetermined distance from the side wall of the blast hole.

[0047] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An auxiliary device for a decoupled charge, characterized in that: include Partition (2), the partition (2) is provided with a receiving space, the top and sides of the receiving space are open; the required decoupling coefficient is determined according to the blasting parameters, the borehole diameter is calculated by the decoupling coefficient, and then the width of the partition that matches the borehole diameter is selected according to the borehole diameter; The card slot (6) is located at the bottom of the partition (2); Two baffle cards (4) are inserted into the card slots (6) at parallel intervals along the length of the partition (2); The elastic element (5) is elastically deformed and inserted into the card slot, with its two ends connected to the corresponding baffle card; and A rope (1), one end of which is attached to the elastic element (5), and the other end extends outward through the partition (2); When the rope pulls the elastic element and the two baffle cards away from the locking position, the two ends of the elastic element will spring open the baffle cards (4) connected to it, and the distance of the baffle cards (4) is 6-10cm. The partition includes two vertical plates, which are spaced apart and parallel to each other; The two vertical plates are spaced apart and run parallel to form the baffle card slot of the baffle card.

2. The auxiliary device for uncoupled charge according to claim 1, characterized in that: The elastic element is a triangular spring stop.

3. The auxiliary device for uncoupled charge according to claim 1, characterized in that: The card slot is provided with a card groove, which is used to install an elastic element and cause the elastic element to undergo elastic deformation and have elastic potential energy.

4. The auxiliary device for uncoupled charge according to claim 1, characterized in that: The partition is a cuboid, 8–12 m long, 6–10 cm wide, and 1 cm thick.

5. The auxiliary device for uncoupled charge according to any one of claims 1-4, characterized in that: The partition, slot, and baffle are all insulators.

6. The auxiliary device for uncoupled charge according to claim 5, characterized in that: The insulator is either a phenolic resin fiberglass board or a resin board.

7. A construction method for an auxiliary device for a decoupled charge as described in any one of claims 1-6, characterized in that: The construction method includes: placing the locking position and partition plate with elastic elements into the hole to be blasted. The elastic elements are tied with ropes. By pulling the ropes, the elastic elements are pulled up from the locking position. After the elastic elements are fully inserted into the accommodating space, the elastic elements elastically reset themselves. Therefore, the two ends of the elastic elements will pop open the baffle plates that are in contact with them. The two baffle plates in the partition plate separate the blast hole to form a sealed space. Then, decoupled charging is performed.

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