Novel explosion propagation spacer

Abstract

The utility model relates to a novel explosion propagation spacer which comprises a tray, an explosive loading piece and a fixing piece, a feeding channel is formed inside the tray, one end of the explosive loading piece is provided with an opening communicated with the feeding channel, the other end of the explosive loading piece is folded to form a folding portion, and the fixing piece is fixed on the folding portion so that the folding portion of the explosive loading piece can be closed. The distance from the fixing piece to the charging piece is the air interval length; an opening communicated with the feeding channel of the tray is formed in one end of the explosive loading piece so that explosive can be conveniently guided into the explosive loading piece through the feeding port of the tray, meanwhile, the other end of the explosive loading piece is folded to form a folding part, and the fixing piece is fixed to the folding part so that the folding part of the explosive loading piece can be closed. At the moment, the distance from the fixing piece to the charging piece is the length of the air interval, the length of the air interval can be adjusted in a large range by adjusting the length of the folding part and the position from the fixing piece to the folding part, the application range of the charging piece is widened, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mine blasting operations, and particularly relates to a new type of detonable spacer. Background Art

[0002] Air interval charging reduces the specific charge of explosives, reduces the bench, reduces the explosion pressure in the blast hole, and reduces or even avoids the impact crushing of ore and rock formed by coupled charging. The air spacer can expand the range of the fracture zone and improve the effective utilization rate of the blasting energy of explosives.

[0003] For example, an air spacer proposed in the utility model patent with the application number CN202322102203.9 includes a tray and a flexible bag. Its outer periphery is used to abut against the inner wall of the blast hole, and a material passing channel is provided along the vertical direction; it has a material cavity with one side being open, and the open end of the material cavity is connected to the lower end of the tray, so that the material cavity communicates with the material passing channel, and the outer diameter of the flexible bag is smaller than the outer diameter of the tray, so that the flexible bag is arranged at an interval along the radial direction of the inner wall of the blast hole after being filled with materials.

[0004] However, the interval length of the existing air spacers is fixed, that is, the length of the flexible bag is not adjustable. To adapt to different air interval requirements, flexible bags of different specifications need to be customized, which is inconvenient to use. Content of the Utility Model

[0005] In view of this, it is necessary to provide a new type of detonable spacer to solve the problem that the interval length of the existing air spacers is fixed, that is, the length of the flexible bag is not adjustable. To adapt to different air interval requirements, flexible bags of different specifications need to be customized, which is inconvenient to use.

[0006] The utility model provides a new type of detonable spacer, which includes a tray, a charging member and a fixing member. An inlet channel is formed inside the tray. One end of the charging member is provided with an opening communicating with the inlet channel. The other end of the charging member is folded to form a folding part. The fixing member is fixed on the folding part to close the folding part of the charging member. The distance from the fixing member to the charging member is the air interval length.

[0007] Further, the fixing member is an annular structure with an adjustable inner diameter.

[0008] Further, the fixing member is a rubber band. The end of the charging member away from its opening passes through the rubber band along a first direction and then passes through the rubber band along a second direction. The first direction and the second direction are arranged in opposite directions.

[0009] Further, the fixing member is a strip structure, and the strip structure can be enclosed to form an annular structure for binding the folding part.

[0010] Further, the fixing member is a strap, and the strap is disposed around the folding portion of the charge member.

[0011] Further, the tray includes a receiving portion and a connecting portion. The bottom of the receiving portion is communicated with the opening of the charge member through the connecting portion, and the feeding channel is formed inside the receiving portion and the connecting portion in the vertical direction.

[0012] Further, the receiving portion is in a gradually expanding trumpet shape in a direction away from the connecting portion, and the connecting portion is in a cylindrical shape.

[0013] Further, the receiving portion includes a plurality of connecting segments and a plurality of corrugated segments arranged alternately in the circumferential direction of the connecting portion.

[0014] Further, the tray further includes a plurality of trapezoidal blocks, and the plurality of trapezoidal blocks are respectively fixedly connected to opposite sides of the plurality of connecting segments.

[0015] Further, a connecting pipe is further included, and both ends of the connecting pipe are communicated with the tray and the charge member respectively;

[0016] Both the tray and the charge member are elastic structures. Annular grooves are provided at opposite ends of the tray and the charge member, and both ends of the connecting pipe are respectively clamped in the annular groove of the tray and the annular groove of the charge member.

[0017] Compared with the prior art, an opening communicating with the feeding channel of the tray is provided at one end of the charge member, which facilitates the introduction of the explosive into the charge member through the feeding port of the tray. At the same time, the other end of the charge member is folded to form a folding portion, and is fixed to the folding portion through a fixing member so that the folding portion of the charge member is closed. At this time, the distance from the fixing member to the charge member is the air gap length. By adjusting the length of the folding portion and the position of the fixing member relative to the folding portion, the air gap length can be adjusted within a wide range, improving the applicable range of the charge member and being convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic structural diagram of the overall structure of the novel detonable spacer provided by the embodiment of the present invention;

[0019] Figure 2 FIG. is a schematic structural diagram of the fixing member installed on the charge member in the novel detonable spacer provided by the embodiment of the present invention;

[0020] Figure 3 FIG. is a schematic structural diagram of the tray in the novel detonable spacer provided by the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The preferred embodiments of the present utility model will be specifically described below in conjunction with the accompanying drawings. The accompanying drawings form a part of this application and are used together with the embodiments of the present utility model to explain the principles of the present utility model, rather than to limit the scope of the present utility model.

[0022] As Figure 1-2 shown, since the length of the charge structure of the existing spacer is fixed, when it is placed in the blast hole, the length of the air gap formed between it and the inner wall of the blast hole is fixed. To meet the requirements of different air gap lengths, it is necessary to customize charge structures with different specifications, which is costly and inconvenient to use. Based on this, the present utility model provides a new type of detonable spacer to achieve the function of adjustable air gap.

[0023] A new type of detonable spacer provided by the present utility model includes a tray 100, a charge member 200, and a fixing member 300. An inlet channel is formed inside the tray 100. One end of the charge member 200 is provided with an opening communicating with the inlet channel. The other end of the charge member 200 is folded to form a folded portion, and the fixing member 300 is fixed on the folded portion to close the folded portion of the charge member 200. The distance from the fixing member 300 to the charge member 200 is the air gap length.

[0024] During implementation, one end of the charge member 200 is provided with an opening communicating with the inlet channel of the tray 100, which facilitates the introduction of explosives into the charge member 200 through the inlet of the tray 100. At the same time, the other end of the charge member 200 is folded to form a folded portion, and is fixed on the folded portion by the fixing member 300 to close the folded portion of the charge member 200. At this time, the distance from the fixing member 300 to the charge member 200 is the air gap length. By adjusting the length of the folded portion and the position of the fixing member 300 relative to the folded portion, the air gap length can be adjusted within a large range, improving the applicable range of the charge member 200 and making it convenient to use.

[0025] In this embodiment, the tray 100 can not only guide the explosives into the charge member 200, but also seal the air gap formed between the charge member 200 and the blast hole. Specifically, the outer periphery of the tray 100 is used to abut against the inner wall of the blast hole, and an inlet channel is provided along the vertical direction.

[0026] As Figure 3 shown, among them, the tray 100 includes a receiving portion 110 and a connecting portion 120. The bottom of the receiving portion 110 is connected to the opening of the charge member 200 through the connecting portion 120. An inlet channel is formed inside the receiving portion 110 and the connecting portion 120 along the vertical direction. The receiving portion 110 is in the shape of a gradually expanding horn in the direction away from the connecting portion 120, and the connecting portion 120 is in the shape of a cylinder.

[0027] In one embodiment, the receiving portion 110 includes a plurality of connecting segments 111 and a plurality of corrugated segments 112 that are circumferentially staggered along the connecting portion 120. Among them, the thickness of the corrugated segment 112 is less than that of the connecting segment 111. The thinner corrugated segment 112 is designed to be easily foldable to meet the requirements of blast holes with different diameters. At the same time, the thicker connecting segment 111 can effectively support the explosive above.

[0028] To further improve the supporting capacity of the tray 100, in one embodiment, the tray 100 further includes a plurality of trapezoidal blocks 113, and the plurality of trapezoidal blocks 113 are respectively fixedly connected to the opposite sides of the plurality of connecting segments 111. The resistance to deformation of the connecting segment 111 is improved by the provided trapezoidal blocks 113.

[0029] To facilitate lifting the spacer period, in one embodiment, through holes 114 are formed in two opposite connecting segments 111 for the connecting rope of the throwing spacer to pass through.

[0030] It should be noted that the material used for the tray 100 includes but is not limited to elastic materials, among which the elastic materials include rubber, silica gel, elastomeric plastics, etc.

[0031] In this embodiment, one end of the charging member 200 is provided with an opening communicating with the feeding channel, and the other end of the charging member 200 is folded to form a folding portion.

[0032] In one embodiment, the charging member 200 is a charging hose. It can be understood that the charging member 200 can be replaced by other forms of charging structures such as a flexible bag, and no limitation is made thereto.

[0033] It can be understood that the charging member 200 is made of a high-strength and high-sealing material, and the charging member 200 includes but is not limited to a charging member 200 made of cotton fabric, blended fabric, natural fiber, and high-strength plastic.

[0034] In this embodiment, the fixing member 300 is fixed to the folding portion to close the folding portion of the charging member 200, and the distance from the fixing member 300 to the charging member 200 is the air interval length.

[0035] It can be understood that the above-mentioned fixing member 300 is a structure for closing the installation position of the charging member 200.

[0036] In one embodiment, the fixing member 300 is an annular structure with an adjustable inner diameter. For example, the fixing member 300 is a rubber band. One end of the charging member 200 away from its opening passes through the rubber band along the first direction and then passes through the rubber band along the second direction, and the first direction is opposite to the second direction. It can be understood that the above-mentioned annular structure with an adjustable inner diameter can also be replaced by structures such as a clip.

[0037] In another embodiment, the fixing member 300 is a strip-shaped structure, and the strip-shaped structure can be enclosed to form an annular structure of a binding and folding portion. Specifically, the fixing member 300 is a strap, and the strap is disposed around the folding portion of the charge member 200. It can be understood that the above-mentioned strip-shaped structure can also be replaced by a structure such as a steel wire.

[0038] Of course, in other embodiments, the fixing member 300 can also achieve the function of closing the installation position of the charge hose by means of wire sealing or the like.

[0039] To facilitate the connection between the tray 100 and the charge member 200, a connecting pipe 400 is further included in this embodiment. The two ends of the connecting pipe 400 are respectively communicated with the tray 100 and the charge member 200.

[0040] Specifically, both the tray 100 and the charge member 200 are elastic structures. Annular grooves are provided at opposite ends of the tray 100 and the charge member 200. The two ends of the connecting pipe 400 are respectively clamped in the annular groove of the tray 100 and the annular groove of the charge member 200.

[0041] Among them, the connecting pipe 400 is a rigid structure, and the tray 100 is an elastic structure. When the connecting pipe 400 is connected to the tray 100, the outer diameter of the connecting pipe 400 is slightly larger than the diameter of the annular groove of the tray 100. Therefore, under the resilience of the tray 100 itself, the connecting pipe 400 is stably connected to the tray 100.

[0042] Similarly, when the connecting pipe 400 is connected to the charge member 200, that is, when connected to the charge hose, the outer diameter of the connecting pipe 400 is slightly larger than the diameter of the annular groove formed on the inner wall of one end of the charge hose. Therefore, under the resilience of the charge hose itself, the connecting pipe 400 is stably connected to the charge hose.

[0043] It can be understood that the connecting pipe 400 plays a role in connecting and transitioning between the tray 100 and the charge hose. Among them, the connecting pipe 400 can be a PVC pipe or can be replaced by other rigid materials, and the rigid materials include but are not limited to plastics, metals, wooden materials, etc.

[0044] In one embodiment, one end of the connecting pipe 400 is inserted into the slot opened in the tray 100, and the outer diameter of one end of the connecting pipe 400 is slightly larger than the inner diameter of the slot. Since the tray 100 has elasticity, it is convenient for the connection between the connecting pipe 400 and the tray 100; at the same time, the other end of the connecting pipe 400 is inserted into the opening of the charge hose, and the specific connection steps are the same as above.

[0045] The specific preparation process of the detonating interval spacer is as follows:

[0046] S1. According to the three-dimensional figure of the designed tray 100, a cutting mold is made, and the tray 100 is produced using the mold; connective ropes are passed through and fixed on the two through holes 114 on the tray 100.

[0047] S2. Select a charging hose of appropriate length. One end of it passes through a rubber band for a certain length, the flexible tube is folded to wrap the rubber band and then sealed with thread. At this time, the other end of the flexible tube passes through the rubber band so that the rubber band surrounds the charging hose.

[0048] S3. Connect the produced charging hose to one end of the connecting tube 400. The connecting tube 400 enlarges the diameter of the opening of the charging hose and gives it a certain strength, and then high-viscosity sealing tape is used for connection and fixation to further improve the strength and ensure the sealing performance.

[0049] S4. Connect the other end of the connecting tube 400 to the connecting part 120 of the tray 100. Since the thickness of the connecting part 120 of the tray 100 is not large, it can provide sufficient elastic contraction force, and the inner diameter of the connecting part 120 of the tray 100 is slightly smaller than the outer diameter of the connecting tube 400, which can make the connection part have better connection strength.

[0050] S4. Conduct an inspection and it is completed.

[0051] Compared with the prior art: One end of the charging member 200 is provided with an opening communicating with the feeding channel of the tray 100, which is convenient for the explosive to be introduced into the charging member 200 through the feeding port of the tray 100. At the same time, the other end of the charging member 200 is folded to form a folding part, and is fixed on the folding part through the fixing member 300 so that the folding part of the charging member 200 is closed. At this time, the distance from the fixing member 300 to the charging member 200 is the air gap length. By adjusting the length of the folding part and the position of the fixing member 300 relative to the folding part, the length of the air gap can be adjusted within a large range, improving the applicable range of the charging member 200 and being convenient to use.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A new type of detonable spacer, characterized in that, comprising; a tray, within which a feeding channel is formed; a charging member, one end of which is provided with an opening communicating with the feeding channel, and the other end of the charging member is folded to form a folded portion; a fixing member, which is fixed on the folded portion to close the folded portion of the charging member, and the distance from the fixing member to the charging member is the air gap length.

2. The novel detonable spacer according to claim 1, wherein The fixing member is an annular structure with adjustable inner diameter.

3. The novel detonable spacer according to claim 2, characterized in that, The fixing member is a rubber band, and one end of the charging member away from its opening passes through the rubber band along a first direction and then passes through the rubber band along a second direction, and the first direction is opposite to the second direction.

4. The novel detonable spacer according to claim 1, characterized in that, The fixing member is a strip structure, and the strip structure can be enclosed into an annular structure for binding the folded portion.

5. The novel detonable spacer according to claim 4, wherein The fixing member is a strap, and the strap is wound around the folded portion of the charging member.

6. The novel detonable spacer according to claim 1, wherein, The tray includes a receiving portion and a connecting portion, the bottom of the receiving portion is communicated with the opening of the charging member via the connecting portion, and the feeding channel is formed inside the receiving portion and the connecting portion in the vertical direction.

7. The novel detonable spacer according to claim 6, characterized in that, The receiving portion is in a gradually expanding trumpet shape in the direction away from the connecting portion, and the connecting portion is in a cylindrical shape.

8. The novel detonable spacer according to claim 7, characterized in that, The receiving portion includes a plurality of connecting segments and a plurality of corrugated segments arranged alternately in the circumferential direction of the connecting portion.

9. The novel detonable spacer according to claim 8, wherein The tray further includes a plurality of trapezoidal blocks, and the plurality of trapezoidal blocks are respectively fixedly connected to the opposite sides of the plurality of connecting segments.

10. The novel detonable spacer according to claim 1, wherein It further includes a connecting pipe, and both ends of the connecting pipe are communicated with the tray and the charging member respectively; Both the tray and the charging member are elastic structures, annular grooves are provided at the opposite ends of the tray and the charging member, and both ends of the connecting pipe are respectively clamped in the annular groove of the tray and the annular groove of the charging member.

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