Emulsion explosive air spacing device for mine blasting

Abstract

The utility model discloses an emulsion explosive air spacing device for mine blasting, which comprises a tube body, the tube body is a hard tube body, the outer wall of the tube body is provided with a plurality of hard fin plates, the fin plates are provided with rope penetrating holes, the fin plates are in a non-contact state, and the rope penetrating holes are communicated with the tube body. The fin plates are parallel to the central axis of the pipe body, and the thickness of the fin plates is smaller than that of the pipe body. Compared with the prior art, the spacing device has the following beneficial effects that the pipe bodies and the fin plates are used in a combined mode, the fin plates make contact with the hole walls of the blast holes, the space in the pipe bodies is used for containing emulsion explosives, the hard pipe bodies and the fin plates cannot be punctured by sharp objects, and the situation that the whole device loses efficacy due to the sharp objects existing in the blast holes is avoided.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction excavation blasting, in particular to an emulsion explosive air spacing device used for mine blasting. Background Art

[0002] Drilling and blasting is a commonly used construction method in tunnel excavation and mining projects. The method is to drill holes in the mountain (or rock) and then bury explosives for blasting. When using emulsion explosives for blasting, an airbag air spacer is required. The method of use is to drop the airbag into the specified position of the blasthole and inflate the airbag to fill the blasthole to play the role of air spacer. There is actually a problem with this airbag spacer when it is used. That is, if there are sharp stones in the blasthole, these sharp stones can easily puncture and damage the airbag, making the spacer ineffective. Utility Model Content

[0003] In view of the above problems, the utility model proposes an emulsion explosive air spacing device for mine blasting, which uses a tube body and a fin plate in combination, utilizes the fin plate to contact the hole wall of the blast hole, and the space in the tube body is used to place the emulsion explosive. The hard tube body and the fin plate will not be punctured by sharp objects, and the whole device will not fail due to the presence of sharp objects in the blast hole.

[0004] The technical solution adopted by the utility model is as follows:

[0005] An emulsion explosive air spacing device for mine blasting comprises a tube body, wherein the tube body is a hard tube body, a plurality of fin plates are arranged on the outer wall of the tube body, and the fin plates are hard fin plates, the fin plates are provided with rope threading holes, the fin plates are in a non-contact state, the fin plates are parallel to the central axis of the tube body, and the thickness of the fin plates is less than the tube thickness of the tube body.

[0006] In this spacer device, the fin plate on the outer wall of the tube body is used to contact the hole wall of the blast hole, and the inner hole in the tube body is used to place emulsion explosives. Since the hard tube body and the fin plate will not be punctured by sharp objects, the entire spacer device will not fail when in use due to the presence of sharp objects in the blast hole.

[0007] To sum up, the device uses a tube body and fins in combination, utilizes the fins to contact the wall of the blast hole, and uses the space in the tube body to place emulsion explosives. The hard tube body and fins will not be punctured by sharp objects, and the entire device will not fail due to the presence of sharp objects in the blast hole.

[0008] At the same time, in this device, a rope threading hole is set on the fin plate. The function of the rope threading hole is to serve as an insertion and fixing point for the cable connected to the emulsion explosive. When the entire device needs to be placed in the blast hole in a suspended manner, the rope can be inserted into the rope threading hole and fixed before being suspended, so that the device can be suspended and fixed at a specific position of the blast hole.

[0009] At the same time, in the device, the thickness of the fin plate is smaller than the thickness of the tube body, so that the hardness of the fin plate is smaller than that of the tube body, and the fin plate is easier to bend as needed. For some irregular blast holes, part of the fin plate can be bent and then the entire device can be inserted into the blast hole. After the device is inserted into the blast hole, the fin plate is close to the wall of the blast hole.

[0010] Optionally, the tube body is a tube body made of plastic material, the fin plate is a fin plate made of plastic material, and the tube body and the fin plate are integrally formed.

[0011] The specific tube body and fin plate can be made of PVC plastic injection molding, or other plastic injection molding. The tube body and fin plate made of plastic material have good hardness and certain bendability, and can be cut with the help of a tool. In this way, the fin plate or tube body can be cut according to the size and length of the blast hole, ensuring that the entire device can be inserted into the blast hole and stably placed in the blast hole.

[0012] Optionally, a joint is further included, the inner wall of the tube body is provided with threads, the joint is provided with threads, and the threads on the inner wall of the tube body cooperate with the threads on the joint.

[0013] The function of setting the joint is to connect two tube bodies. When the two ends of the joint are respectively matched with the two ends of the tube body, the two tube bodies are connected together. The whole device can be continuously connected and extended according to the needs of use. This can ensure that the device has good adaptability to blast holes of different lengths. When the depth of the blast hole is deeper, the two tube bodies are connected by the joint to extend it. When the depth of the blast hole is shallow, the tube body and the fin plate are directly cut with a tool to adapt to the depth of the blast hole.

[0014] Similarly, when operating on some blastholes that require the pipe body to be in a closed state, the joint can be used to seal the pipe mouth of the pipe body.

[0015] Optionally, a protruding spacer is provided on the joint, and the protruding spacer is perpendicular to the joint.

[0016] The function of the protruding spacer is to separate two pipe bodies. When the two ends of the joint are respectively connected to the two pipe bodies, the two ends of the protruding spacer are respectively the two pipe bodies, and the two pipe bodies respectively press against the spacer from the two ends.

[0017] Optionally, the tube body is a cylindrical tube body, and the fin plate is perpendicular to the outer wall of the tube body.

[0018] A cylindrical tube body is adopted, and the fin plate is perpendicular to the outer wall of the tube body, so that the fin plate can stably support the tube body.

[0019] Optionally, the fins are distributed on the outer wall of the tube body at equal distances and with equal arcs.

[0020] Optionally, the fin plate has three pieces.

[0021] The three fin plates are distributed on the outer wall of the tube body at equal distances and arc angles, and the angle formed between two adjacent fin plates is 120 degrees.

[0022] Optionally, the length of the tube body is equal to the length of the fin plate.

[0023] The beneficial effects of the utility model are as follows: by using the tube body and the fin plate in combination, the fin plate is in contact with the hole wall of the blast hole, the space in the tube body is used to place the emulsion explosive, the hard tube body and the fin plate will not be punctured by sharp objects, and the whole device will not fail due to the presence of sharp objects in the blast hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of an emulsion explosive air gap device used for mine blasting;

[0025] Figure 2 This is a simplified diagram showing the distribution relationship of the fins on the tube body.

[0026] The reference numerals in the figure are: 1, tube body; 101, inner hole; 2, fin plate; 201, rope threading hole; 3, joint; 301, protruding spacer. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0029] As attached Figure 1 And attached Figure 2As shown, an emulsion explosive air separation device for mine blasting includes a tube body 1, which is a hard tube body 1. A plurality of fin plates 2 are arranged on the outer wall of the tube body 1. The fin plates 2 are hard fin plates 2. The fin plates 2 are provided with rope threading holes 201. The fin plates 2 are in a non-contact state, and the fin plates 2 are parallel to the central axis of the tube body 1. The thickness of the fin plates 2 is less than the thickness of the tube body 1.

[0030] In this spacer device, the fin plate 2 on the outer wall of the tube body 1 is used to contact the wall of the blast hole, and the inner hole 101 in the tube body 1 is used to place emulsion explosives. Since the hard tube body 1 and the fin plate 2 will not be punctured by sharp objects, the entire spacer device will not fail when in use due to the presence of sharp objects in the blast hole.

[0031] In summary, the device uses a tube body 1 and a fin plate 2 in combination, utilizes the fin plate 2 to contact the wall of the blast hole, and the space inside the tube body 1 is used to place emulsion explosives. The hard tube body 1 and the fin plate 2 will not be punctured by sharp objects, and the entire device will not fail due to the presence of sharp objects in the blast hole.

[0032] At the same time, in this device, a rope hole 201 is set on the fin plate 2. The rope hole 201 can be used as a fixing point for the cable connected to the emulsion explosive. When the entire device needs to be placed in the blast hole in a suspended manner, the rope can be inserted into the rope hole 201 and fixed before being suspended, and the device can be suspended and fixed at a specific position of the blast hole.

[0033] Specifically in the present device, each fin plate 2 is provided with at least one rope threading hole 201 , and the rope threading hole 201 may be circular or square.

[0034] At the same time, in the present device, the thickness of the fin plate 2 is smaller than the thickness of the tube body 1, so that the hardness of the fin plate 2 is smaller than that of the tube body 1, and the fin plate 2 is easier to bend as needed. For some irregular blast holes, part of the fin plate 2 can be bent and then the entire device can be inserted into the blast hole. After the device is inserted into the blast hole, the fin plate 2 is close to the wall of the blast hole.

[0035] As attached Figure 1 And attached Figure 2 As shown, the tube body 1 is a tube body 1 made of plastic material, the fin plate 2 is a fin plate 2 made of plastic material, and the tube body 1 and the fin plate 2 are integrally formed.

[0036] The specific tube body 1 and fin plate 2 can be made of PVC plastic injection molding, or other plastic injection molding (such as PPR or PE). The tube body 1 and fin plate 2 are made of plastic material, so that the tube body 1 and the fin plate 2 have good hardness and certain bendability, and can be cut with the help of a tool. In this way, the fin plate 2 or the tube body 1 can be cut according to the size and length of the blast hole, ensuring that the entire device can be inserted into the blast hole and stably placed in the blast hole.

[0037] As attached Figure 1 And attached Figure 2 As shown, a joint 3 is also included. The inner wall of the pipe body 1 is provided with threads, and the joint 3 is provided with threads. The threads on the inner wall of the pipe body 1 and the threads on the joint 3 are matched together.

[0038] The joint 3 is used to connect the two tube bodies 1. When the two ends of the joint 3 are respectively matched with the two ends of the tube body 1, the two tube bodies 1 are connected together. The whole device can be continuously connected and extended according to the needs of use, which can ensure that the device has good adaptability to blastholes of different lengths. When the depth of the blasthole is deeper, the two tube bodies 1 are connected through the joint 3 to extend it. When the depth of the blasthole is shallow, the tube body 1 and the fin plate 2 are directly cut with a tool to adapt to the depth of the blasthole.

[0039] Similarly, when operating on some blastholes that require the pipe body 1 to be in a closed state, the joint 3 can be used to seal the pipe opening of the pipe body 1.

[0040] As attached Figure 1 And attached Figure 2 As shown, a protruding spacer 301 is provided on the joint 3 , and the protruding spacer 301 is perpendicular to the joint 3 .

[0041] The function of the protruding spacer 301 is to separate two tubes 1. When the two ends of the joint 3 are connected to the two tubes 1, the two ends of the protruding spacer 301 are the two tubes 1, and the two tubes 1 press against the spacer from both ends.

[0042] As attached Figure 1 And attached Figure 2 As shown, the tube body 1 is a cylindrical tube body 1 , and the fin plate 2 is perpendicular to the outer wall of the tube body 1 .

[0043] A cylindrical tube body 1 is adopted, and the fin plate 2 is perpendicular to the outer wall of the tube body 1 , so that the fin plate 2 can stably support the tube body 1 .

[0044] As attached Figure 1 And attached Figure 2 As shown, the fins 2 are distributed on the outer wall of the tube body 1 at equal distances and with equal arcs.

[0045] As attached Figure 1 And attached Figure 2 As shown, the fin plate 2 has three pieces.

[0046] The three fin plates 2 are distributed on the outer wall of the tube body 1 at equal distances and arc angles, and the angle formed between two adjacent fin plates 2 is 120 degrees.

[0047] As attached Figure 1 And attached Figure 2 As shown, the length of the tube body 1 is equal to the length of the fin plate 2 .

[0048] The above-described embodiments only express some embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for those skilled in the art, it is still possible to modify the technical solutions recorded in the above-mentioned embodiments, or to replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An emulsion explosive air gap device for mine blasting, characterized in that: It includes a tube body, which is a hard tube body. A plurality of fin plates are arranged on the outer wall of the tube body. The fin plates are hard fin plates, and the fin plates are provided with rope threading holes. The fin plates are in a non-contact state, and the fin plates are parallel to the central axis of the tube body. The thickness of the fin plates is less than the tube thickness of the tube body.

2. The emulsion explosive air gap device for mine blasting according to claim 1, characterized in that: The tube body is a tube body made of plastic material, the fin plate is a fin plate made of plastic material, and the tube body and the fin plate are integrally formed.

3. The emulsion explosive air gap device for mine blasting according to claim 1, characterized in that: It also includes a joint, the inner wall of the tube body is provided with threads, the joint is provided with threads, and the threads on the inner wall of the tube body cooperate with the threads on the joint.

4. The emulsion explosive air gap device for mine blasting according to claim 3, characterized in that: The joint is provided with a protruding spacer, and the protruding spacer is perpendicular to the joint.

5. The emulsion explosive air gap device for mine blasting according to claim 1, characterized in that: The tube body is a cylindrical tube body, and the fin plate is perpendicular to the outer wall of the tube body.

6. The emulsion explosive air gap device for mine blasting according to claim 5, characterized in that: The fins are distributed on the outer wall of the tube body at equal distances and with equal arcs.

7. The emulsion explosive air gap device for mine blasting according to claim 6, characterized in that: The fin plates include three pieces.

8. The emulsion explosive air gap device for mine blasting according to claim 1, characterized in that: The length of the tube body is equal to the length of the fin plate.

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