Axial and circumferential combined energy gathering device

Abstract

The utility model discloses an axial and circumferential combined energy gathering device which comprises a plurality of explosive containers, each explosive container comprises a cylindrical container body and a container cover connected with the container body, and the explosive containers are connected in series at equal intervals through lead pipes; a plurality of annular energy gathering grooves are formed in the container body of the lowest charging container, and a detonator connector is formed in the bottom of the container body of the lowest charging container; an axial energy-gathering groove is formed in the container body of each of the other explosive containers, and the orientations of the groove openings of the axial energy-gathering grooves are the same. By the adoption of the axial and circumferential combined energy gathering device, the blasting effect can be guaranteed under the condition that the amount of single-hole explosive is reduced to control blasting vibration.

Description

Technical Field

[0001] This utility model relates to the field of blasting technology, and in particular to a shaped charge device. Background Technology

[0002] Blasting, as an efficient and economical excavation method, is widely used in road cut slope excavation projects. However, the presence of other buildings near the new construction site can significantly restrict the safe conduct of blasting operations. Buildings adjacent to the blasting site are affected by blasting vibrations, which can range from minor disturbances causing wall cracks to severe collapses, posing a great threat to the lives and property of residents.

[0003] Reducing the amount of explosive per hole is an effective way to control blasting vibration, but reducing the amount of explosive per hole may lead to poor blasting effect, high proportion of large pieces, and increased cost of secondary processing.

[0004] Therefore, while reducing the amount of explosives per hole and controlling vibration within a reasonable range, ensuring the blasting effect is a technical challenge that needs to be addressed. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an axial and circumferential combined energy-conducting device to solve the technical problem of how to ensure the blasting effect while reducing the amount of explosive in a single hole and controlling vibration.

[0006] This utility model's axial and circumferential combined energy-concentrating device includes several charge containers, each charge container comprising a cylindrical container body and a container cover connected to the container body, and the charge containers are connected in series at equal intervals via lead tubes; the container body of the last charge container is provided with several annular energy-concentrating grooves, and the bottom of the container body of the last charge container is provided with a detonator interface; the container bodies of the other charge containers are provided with an axial energy-concentrating groove, and the groove openings of the axial energy-concentrating grooves face the same direction.

[0007] Furthermore, both the annular energy-concentrating groove and the axial energy-concentrating groove are V-shaped grooves.

[0008] Furthermore, the lower end of the lead tube is integrally connected to the container lid, and the upper end of the lead tube is inserted into the bottom of the container body.

[0009] Furthermore, a positioning device is provided on the outer side of the container body to control the charge container to be in the middle position of the borehole during installation.

[0010] Furthermore, the positioning device includes radial plates connected to both radial sides of the container body and arc-shaped plates connected to the plates.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model relates to an axial-circumferential combined shaped charge device. The lowest charge container is located at the bottom of the borehole during blasting. By setting several annular shaped charge grooves on the container body of the lowest charge container, the energy-concentrating effect of the annular grooves concentrates the explosive energy for release towards the bottom rock, thus better solving the problem of the bottom rock trapping effect. Furthermore, by setting axial shaped charge grooves on the other charge containers, with the groove openings facing the free side of the slope, the explosive energy is concentrated for release towards the free side of the slope, thus enhancing the blasting effect. Therefore, using this utility model's axial-circumferential combined shaped charge device can ensure blasting effectiveness while reducing the amount of explosive per borehole and controlling blasting vibration.

[0013] 2. The axial and circumferential combined energy-concentrating device of this utility model has each charge container connected in series at equal intervals through lead pipes. This intermittent charging makes the explosive distribution in the blast hole more uniform, and the explosive power is also more uniform, which can effectively reduce the size of large rocks.

[0014] 3. The axial and circumferential combined energy-concentrating device of this utility model, by setting a positioning device on the outer side of the container body, makes the charging container in the middle of the blast hole. This decoupled charging method can protect the reserved rock mass during blasting, thereby better reducing the impact of blasting on nearby buildings. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an axially and circumferentially combined energy-concentrating device.

[0016] Figure 2 This is a cross-sectional schematic diagram of an axially and circumferentially combined energy-concentrating device. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] As shown in the figure, the axial-circumferential combined shaped charge device in this embodiment includes several charge containers. Each charge container includes a cylindrical container body 1 and a container cover 2 connected to the container body. The charge containers are connected in series at equal intervals via lead pipes 3. The container body of the last charge container is provided with several annular shaped charge grooves 4, and the bottom of the container body of the last charge container is provided with a detonator interface 5. The container bodies of the other charge containers are provided with an axial shaped charge groove 6, and the groove openings of the axial shaped charge grooves face the same direction. In this embodiment, both the annular shaped charge groove and the axial shaped charge groove are V-shaped grooves.

[0019] Explosives are loaded into various charging containers, and fuses are threaded through fuse tubes 3 to connect the explosives in adjacent charging containers. During blasting, the lowest charging container is located at the bottom of the borehole. Several annular energy-concentrating grooves on the container body concentrate the explosive energy and release it towards the bottom rock, thus better addressing the trapping effect of the bottom rock. The axial energy-concentrating grooves on the other charging containers face the free side of the slope, concentrating the explosive energy towards the free side of the slope, thereby enhancing the blasting effect. Thus, the axial and annular combined energy-concentrating device of this invention can ensure blasting effectiveness while reducing the amount of explosive per borehole and controlling blasting vibration.

[0020] As an improvement to the above embodiment, the lower end of the lead tube 3 is integrally connected to the container cap 2, and the upper end of the lead tube is inserted into the bottom of the container body 1. Making the lead tube 3 and the container cap 2 as a single unit simplifies the assembly operation of the drug-filling container and improves drug-filling efficiency.

[0021] As an improvement to the above embodiment, a positioning device is provided on the outer surface of the container body to control the charge container to be positioned in the center of the blast hole during installation. In this embodiment, the positioning device includes a radial plate 7 connected to both radial sides of the container body and an arc-shaped plate 8 connected to the plate. This improvement, by providing a positioning device on the outer surface of the container body to position the charge container in the center of the blast hole, allows for decoupled charging, which can protect the reserved rock mass during blasting, thereby better reducing the impact of blasting on nearby buildings.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An axially circumferential combined energy-concentrating device, characterized in that: It includes several charge containers, each charge container comprising a cylindrical container body and a container lid connected to the container body, and the charge containers are connected in series at equal intervals via lead tubes; the container body of the last charge container is provided with several annular energy-concentrating grooves, and the bottom of the container body of the last charge container is provided with a detonator interface; the container bodies of the other charge containers, except for the last charge container, are provided with an axial energy-concentrating groove, and the groove openings of the axial energy-concentrating grooves face the same direction.

2. The axial-circumferential combined energy-concentrating device according to claim 1, characterized in that: Both the annular energy-concentrating groove and the axial energy-concentrating groove are V-shaped grooves.

3. The axial-circumferential combined energy-concentrating device according to claim 1, characterized in that: The lower end of the lead tube is integrally connected to the container lid, and the upper end of the lead tube is inserted into the bottom of the container body.

4. The axial-circumferential combined energy-concentrating device according to claim 1, characterized in that: The outer surface of the container body is provided with a positioning device that controls the charge container to be in the middle of the borehole during installation.

5. The axial-circumferential combined energy-concentrating device according to claim 4, characterized in that: The positioning device includes radial plates connected to both radial sides of the container body and arc-shaped plates connected to the plates.

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