Hole pile rock fracturing grain charging structure

Abstract

The utility model discloses a hole pile rock fracturing grain charging structure which comprises a rock body, an expansion pipe is placed in a bubble hole of the rock body, the two ends of the expansion pipe are movably connected with plugs, expansion agents are filled in the expansion pipe, the expansion pipe is plugged at the inner bottom of the bubble hole of the rock body, and the plugs are connected with the plugs. The portion, located on the expansion pipe, in the bubble eye hole is further filled with a blocking material, one end of a detonating cord penetrates through the expansion agent, and the other end of the detonating cord penetrates out of the plug and the blocking material and extends out of the bubble eye hole. The expansion agent is a carbon dioxide agent, is difficult to burn outside the hole, does not have explosiveness and is safer during production and transportation, when the expansion agent is filled in the expansion pipe and then placed into the bubble hole, the bubble hole is plugged by the plugging material, so that a constraint environment is formed for the expansion agent, the whole fracturing process is small in vibration and low in noise, and the fracturing efficiency is improved. No toxic gas is generated, dust and flying stones are reduced, the blasting warning range is small, and the trouble that blasting personnel frequently avoid blasting is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting engineering, in particular to a charge structure for a hole pile rock fracturing charge column. Background Art

[0002] In modern rock blasting projects, most of them still use explosives as energy output materials. Although explosives are powerful and have good rock crushing effects, they generally have problems such as excessive blasting vibration, loud noise, toxic gases, dust, flying rocks that pollute the environment, and unsafe production and transportation.

[0003] Therefore, we propose a hole pile rock fracturing charge column charging structure to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a charge structure for a hole pile rock fracturing charge column to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A charge structure for a bored pile rock fracturing charge column comprises a rock body, an expansion tube is placed in a bubble hole of the rock body, plugs are movably connected at both ends of the expansion tube, and the expansion tube is filled with an expansion agent, the expansion tube is plugged at the bottom of the bubble hole of the rock body, and the bubble hole is also filled with a plugging material on the expansion tube, one end of a detonating wire passes through the expansion agent, and the other end of the detonating wire passes through the plug and the plugging material and extends outside the bubble hole.

[0007] In a further embodiment, the inner wall of the port of the expansion tube and the outer wall of the connecting portion of the plug are provided with matching threads.

[0008] In a further embodiment, the connection portion of the plug and the port of the expansion tube both adopt a conical structure, a protruding convex ring is provided at the end of the connection portion of the plug, and a ring groove that matches the convex ring is opened on the inner wall of the port of the expansion tube.

[0009] In a further embodiment, a limiting groove parallel to the axial direction of the expansion tube is provided on the outer wall of the expansion tube, and a convex strip engaged with the limiting groove is provided in the bubble hole.

[0010] In a further embodiment, the plugging material is one of anchoring agent, sand, yellow clay or a mixture of sand and yellow clay.

[0011] In a further embodiment, the blocking length of the blocking material is 60-70 cm.

[0012] In a further embodiment, the depth of the bubble hole is 1-1.2m.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The expansion agent of the utility model is a carbon dioxide agent, which is difficult to burn and non-explosive when outside the hole, and is safer during production and transportation. After the expansion agent is filled in the expansion tube, it is placed in the bubble hole and then sealed with a plugging material, thereby forming a constrained environment for the expansion agent. When the expansion agent is ignited, it can quickly generate more gas to squeeze the expansion tube to expand, thereby achieving a rock fracturing effect. The entire fracturing process has small vibration and noise, does not generate toxic gas, reduces the generation of dust and flying stones, and has a small blasting warning range, which reduces the trouble of blasters frequently avoiding gunfire. In addition, the assembly operation of the expansion agent and the expansion tube is simple, which is easy for blasters to master. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the assembly structure of the expansion tube and the detonating wire of the utility model;

[0018] Figure 4 This is a schematic diagram of an embodiment of the structure of the connection between the expansion tube and the plug in the utility model

[0019] Figure 5 It is a structural schematic diagram of another embodiment of the connection between the expansion tube and the plug in the utility model.

[0020] In the figure: 1. rock body; 11. eyelet hole; 12. convex strip; 2. expansion tube; 21. plug; 211. convex ring; 212. ring groove; 22. expansion agent; 23. limit groove; 3. plugging material; 4. detonating cord. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 A charge structure for a bored pile rock fracturing charge column comprises a rock body 1, wherein a bubble hole 11 is provided in the rock body 1, wherein the depth of the bubble hole 11 is 1-1.2 m, an expansion tube 2 is placed at the bottom of the bubble hole 11, and a plugging material 3 is filled on the expansion tube 2 to block the bubble hole 11, wherein the plugging length of the plugging material 3 is 60-70 cm, and the plugging material 3 is made of one of anchoring agent, sand, yellow clay or a mixture of sand and yellow clay, so that the expansion tube 2 can be completely exploded and the blasting effect can be improved, and plugs 21 are movably connected at both ends of the expansion tube 2, so that the plugs 21 can be conveniently opened to facilitate the filling of an expansion agent 22 into the expansion tube 2, wherein one end of a detonating wire 4 is passed through the expansion agent 22, and the other end of the detonating wire 4 passes through the plug 21 and the plugging material 3 at one end of the expansion tube 2 and extends to the outside of the bubble hole 11, so as to facilitate the ignition of the detonating wire 4 at a long distance.

[0025] Example 1, please refer to Figure 4 In order to facilitate the disassembly between the plug 21 and the expansion tube 2, the inner wall of the port of the expansion tube 2 and the outer wall of the connecting part of the plug 21 are provided with matching threads, so that the plug 21 can be screwed tight or loose relative to the expansion tube 2.

[0026] Example 2, please refer to Figure 5 In order to facilitate the assembly of the plug 21 and the expansion tube 2, the connection part of the plug 21 and the port of the expansion tube 2 both adopt a conical structure, which is convenient for the plug 21 to be inserted into the port of the expansion tube 2. A protruding convex ring 211 is provided at the end of the connection part of the plug 21, and an annular groove 212 that matches the convex ring 211 is provided on the inner wall of the port of the expansion tube 2, so that after the convex ring 211 is inserted into the annular groove 212, the connection between the plug 21 and the expansion tube 2 is completed.

[0027] See also Figure 2-3 In order to further improve the limiting effect of the expansion tube 2 in the eye hole 11, a limiting groove 23 parallel to the axial direction of the expansion tube 2 is provided on the outer wall of the expansion tube 2, and a convex strip 12 engaged with the limiting groove 23 is provided in the eye hole 11, so that the expansion tube 2 is not easy to deflect axially during expansion, which is safer.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A charge structure for a pile rock fracturing charge column, comprising a rock body (1), wherein an expansion tube (2) is placed in a bubble hole (11) of the rock body (1), characterized in that: The expansion tube (2) has plugs (21) movably connected at both ends, and the expansion tube (2) is filled with an expansion agent (22). The expansion tube (2) is plugged at the bottom of the eye hole (11) of the rock body (1), and the eye hole (11) is also filled with a plugging material (3) on the expansion tube (2). One end of a detonating wire (4) passes through the expansion agent (22), and the other end of the detonating wire (4) passes through the plug (21) and the plugging material (3) and extends to the outside of the eye hole (11).

2. A charge structure for rock fracturing charges in a pile according to claim 1, characterized in that: The inner wall of the port of the expansion tube (2) and the outer wall of the connecting portion of the plug (21) are provided with mutually matching threads.

3. The charge structure of a pile rock fracturing charge column according to claim 1, characterized in that: The connection portion of the plug (21) and the port of the expansion tube (2) both adopt a conical structure, a protruding convex ring (211) is provided at the end of the connection portion of the plug (21), and a ring groove (212) matching and engaging with the convex ring (211) is provided on the inner wall of the port of the expansion tube (2).

4. The charge structure of a pile rock fracturing charge column according to claim 1, characterized in that: The outer wall of the expansion tube (2) is provided with a limiting groove (23) parallel to the axial direction of the expansion tube (2), and the bubble hole (11) is provided with a convex strip (12) engaged with the limiting groove (23).

5. The charge structure of a pile rock fracturing charge column according to claim 1, characterized in that: The blocking material (3) is one of anchoring agent, sand, yellow clay or a mixture of sand and yellow clay.

6. The charge structure of a pile rock fracturing charge column according to claim 1, characterized in that: The blocking length of the blocking material (3) is 60-70 cm.

7. The charge structure of a pile rock fracturing charge column according to claim 1, characterized in that: The depth of the bubble hole (11) is 1-1.2m.

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