Operating tool for blast hole blowing of blasting working face of underground excavation project
By using a high-pressure gas system consisting of galvanized hollow pipes and rubber hoses in underground excavation projects, the problem of poor handling of rocks and water stains inside blast holes was solved, ensuring the quality and efficiency of blasting operations.
Patent Information
- Application Number
- CN202520049014.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-09
AI Technical Summary
In existing technologies, the treatment of rocks and water stains inside blast holes in underground excavation projects is ineffective, affecting the quality of blasting operations and resulting in unsatisfactory blasting effects.
A high-pressure gas system consisting of galvanized hollow pipes, rubber hoses, and an automatic pressure regulating valve is used to blow out residual water stains and stones from the blast holes using high-pressure gas, ensuring the quality of the explosive charge in the blast holes.
It enables rapid and safe handling of residues inside blast holes, improving the construction quality and effectiveness of blasting operations.
Smart Images
Figure CN223724556U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to underground excavation engineering blasting operation technical field, especially relate to a tool for underground excavation engineering blasting operation face blast hole blowing. BACKGROUND
[0002] At present, the underground mine roadway construction and the tunnel excavation and other underground engineering tunneling all adopt the drilling and blasting method construction, and the blasting operation effect directly influences the underground excavation engineering construction quality and progress, and the blast hole construction quality directly influences the operation face blasting operation effect. At present, the underground excavation engineering blast hole construction has two modes, one is manual operation perforation, mainly adopts the YT-28 type air leg type rock drill, and the other is mechanical perforation, mainly adopts the rock drilling jumbo. The manual operation perforation and the mechanical perforation principle are basically identical, the drill bit cuts rock under the action of air and hydraulic power, and forms a hole; the drill bit sprays water during rotation, and reduces dust in the operation face.
[0003] Before blasting operation, the blasting operation personnel carries out acceptance according to the blast hole perforation quality, and the stone block and water stain remaining or falling in the blast hole will influence the blast hole charging quality, and then influence the blasting quality. At present, the stone block and water stain remaining in the blast hole are mainly handled by reciprocating the charging blast stick in the blast hole or by adopting the iron hook to hook out the stone block and water stain in the blast hole, but the blast hole treatment effect is poor, and the underground excavation engineering blasting effect is not ideal. SUMMARY
[0004] The utility model discloses a kind of operation tools for underground excavation engineering blasting operation face blast hole blowing, can assist first-line blasting operation personnel under the premise of guaranteeing safety, can quickly, conveniently handle stone block and water stain remaining in operation face blast hole.
[0005] To realize the above-mentioned purposes of the utility model, the operation tool for underground excavation engineering blasting operation face blast hole blowing adopts the following technical solutions:
[0006] The utility model discloses an operation tool for blast hole blowing of underground excavation engineering blasting operation face, which comprises an air compressor installed on the ground, a high-pressure seamless steel pipe connected with the air compressor. The utility model discloses the following: it further comprises a galvanized hollow pipe with an air outlet end inserted into the blast hole of the operation face during use, the middle part of the galvanized hollow pipe is curved, the air inlet end of the galvanized hollow pipe is inserted into a joint for fixation, the other side of the joint is connected with a rubber hose, and the rubber hose is arranged along the operation face; the air outlet end of the high-pressure seamless steel pipe is connected with an automatic switch valve, the air outlet end of the automatic switch valve is connected with the air inlet end of the rubber hose; an automatic control pressure regulating valve is arranged in the middle part of the rubber hose. The air compressor installed on the ground works to convey the generated high-pressure gas along the high-pressure seamless steel pipe, the rubber hose and the galvanized hollow pipe to the blast hole of the operation face, and the high-pressure gas is sprayed out from the outlet of the galvanized hollow pipe, so that the residual water stains and residual stones in the blast hole of the operation face are blown out, thereby ensuring the charging quality of the blast hole of the operation face and improving the blasting operation effect of the underground excavation engineering.
[0007] Preferably, the support rod is obliquely welded between the air outlet section and the air inlet section of the galvanized hollow pipe. Preferably, the automatic control pressure regulating valve is a diaphragm pressure reducing valve, which is adjusted to have a larger opening degree when the pressure of the gas pipe is less than a set value and a smaller opening degree when the pressure of the gas pipe is greater than the set value, so as to keep the working pressure stable.
[0008] Preferably, the middle part of the galvanized hollow pipe is curved in the shape of an arc with a radius of 20 cm.
[0009] Preferably, the support rod is a solid square tube with a diameter of 2 cm and a length of 30 cm, and is obliquely welded along the two sides of the curved center of the galvanized hollow pipe by 20 cm.
[0010] Preferably, the joint is a cuboid with a size of 3 cm*3 cm*5 m, and has a latch hole opened on each side of the joint, and the joint is fixedly connected with the rubber hose by a latch.
[0011] Preferably, the rubber hose has an outer diameter of 32 mm and an inner diameter of 26 mm, and the length of the rubber hose can be adjusted according to the actual situation on site.
[0012] Preferably, the galvanized hollow pipe has an outer diameter of 32 mm and an inner diameter of 26 mm, and a length of 3 m (bent at a position of about 2.5 m), and the specific length can be determined according to the actual situation on site.
[0013] In practical application, the blasting operator inserts the galvanized hollow pipe into the blast hole of the operation face, adjusts the automatic control pressure regulating valve in time according to the amount of residual water stains and the size of residual stones, and ensures that the high-pressure gas blows the residual water stains or stones out of the upper part of the blast hole of the operation face; the blasting operator stands on the side of the blast hole of the operation face to avoid being injured by the residual stones.
[0014] The utility model discloses an operation tool for blast hole blowing of underground excavation engineering blasting operation surface, which has the following beneficial effects: the utility model selects appropriate tools according to the underground excavation engineering blasting operation surface blasting, which facilitates the first-line blasting operation personnel to quickly handle the stone blocks and water stains remaining in the blast hole. The first-line blasting operation personnel can handle the stone blocks and water stains remaining in the blast hole at any time before and during the blasting charging, which ensures the blast hole construction quality and improves the underground excavation engineering blasting operation effect. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structural schematic view of the operation tool for blast hole blowing of underground excavation engineering blasting operation surface.
[0016] Figure 2 It is an operation schematic view when the utility model is used.
[0017] Figure 3 It is a blast hole charging structure view after the residual water stains and residual stone blocks are cleaned by the utility model.
[0018] The signs are: 1 - galvanized hollow pipe; 2 - support rod; 3 - joint; 4 - rubber hose; 5 - automatic control pressure regulating valve; 6 - automatic switch valve; 7 - high-pressure seamless steel pipe; 8 - air compressor; 9 - operation surface blast hole; 10 - high-pressure gas; 11 - residual water stain; 12 - residual stone block; 13 - residual water stain or stone block movement direction; 14 - explosive; 15 - digital electronic detonator; 16 - stemming. DETAILED DESCRIPTION
[0019] In order to better describe the utility model, the operation tool for blast hole blowing of underground excavation engineering blasting operation surface is further described in detail below in combination with the drawings and examples.
[0020] By Figure 1The structure schematic view of the operation tool for the blast hole of the underground excavation engineering blasting operation surface shown in the utility model, in the embodiment, the operation tool for the blast hole of the underground excavation engineering blasting operation surface comprises an air compressor 8 installed on the ground, a high-pressure seamless steel pipe 7 connected with the air compressor 8 and a galvanized empty pipe 1 inserted into the blast hole 9 of the operation surface in use, the middle part of the galvanized empty pipe 1 is in a curved arc shape, the radius of the arc is designed to be 20 cm, the galvanized empty pipe 1 is bent at a distance of 40 cm from the tail part by using a pipe bending machine, and the bending radius is designed to be 20 cm. The support rod 2 is connected by inclined welding (the angle is 45°) at each 20 cm of the two sides of the bending center of the galvanized empty pipe 1, the support rod 2 is a solid square tube with a diameter of 2 cm and a length of 30 cm. The air inlet end of the galvanized empty pipe 1 is connected with one end of the joint 3, the joint 3 is made of cast iron and has the size of a cuboid of 3 cm*3 cm*5 m. The other end of the joint 3 is connected with the rubber hose 4 and is fixed by using a bolt, the outer diameter of the rubber hose 4 is 32 mm, and the inner diameter is 26 mm. The rubber hose 4 is arranged along the operation surface site; the air outlet end of the high-pressure seamless steel pipe 7 is connected with the automatic switch valve 6, the air outlet end of the automatic switch valve 6 is connected with the air inlet end of the rubber hose 4; the automatic control pressure regulating valve 5 is arranged in the middle part of the rubber hose 4, and the automatic control pressure regulating valve 5 adopts a diaphragm type pressure reducing valve.
[0021] In combination Figure 2 The operation schematic view in use of the utility model shown, in the embodiment, the underground mine blasting operation personnel bring safety helmets, safety goggles and other safety protection supplies, hold the connection between the galvanized empty pipe 1 and the support rod 2 with one hand, control the automatic control pressure regulating valve 5 and the automatic switch valve 6 with the other hand, and adjust the gas pressure at the outlet of the galvanized empty pipe 1. The blasting operation personnel insert the galvanized empty pipe 1 into the blast hole 9 of the operation surface, adjust the length of the galvanized empty pipe 1 in time according to the positions of the residual water stains 11 and the residual stone blocks 12, and adjust the automatic control pressure regulating valve 5 in time according to the sizes of the residual water stains 11 and the residual stone blocks 12, so that the high-pressure gas 10 blows out the residual water stains 11 or the residual stone blocks 12 along the movement direction 12 of the residual water stains or the stone blocks on the upper part of the blast hole 9 of the operation surface; the blasting operation personnel stand on the side of the blast hole to avoid being injured by the residual stone blocks 12, and wear relevant dust masks.
[0022] In combination Figure 3 In the embodiment, after the underground mine blasting operation personnel clean the residual water stains 11 and the residual stone blocks 12 in the blast hole 9 of the operation surface, the blasting operation personnel use the blast rod test to test whether the blast hole 9 of the operation surface can be normally filled with the blasting agent 14 and the digital electronic detonator 15; after the blast hole is filled to meet the blasting design, the blasting operation personnel use the blast clay 16 to block the hole position of the blast hole 9 of the operation surface.
[0023] The utility model discloses in use, can according to use position, select the appropriate length galvanized hollow pipe 1, can realize the residual stone block 12 of blowing out in the operation face blasthole 9 11, ensure blasthole construction quality, improve underground excavation engineering blasting operation effect.
[0024] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and the standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt rivet, welding in the prior art, the mechanical, part and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.
[0025] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principle and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. An operating tool for underground excavation blasting operation face hole blowing, comprising an air compressor (8) installed on the ground, a high-pressure seamless steel pipe (7) connected with the air compressor (8), characterized in that: It also includes the use of the time out of the air end inserted into the working face blast hole (9) galvanized empty pipe (1), the galvanized empty pipe (1) in the middle of the curved shape, the air inlet end of the galvanized empty pipe (1) is inserted into the joint (3) and fixed, the other side of the joint (3) is connected with the rubber hose (4), the rubber hose (4) is laid along the working face site; The air outlet end of the high-pressure seamless steel pipe (7) is connected with the automatic switch valve (6), the air outlet end of the automatic switch valve (6) is connected with the air inlet end of the rubber hose (4); The automatic control pressure regulating valve (5) is arranged in the middle of the rubber hose (4).
2. An operating tool for the stemming of blast holes in a blast face of an underground excavation work according to claim 1, characterized in that: The air outlet section and the air inlet section of the galvanized empty pipe (1) are obliquely welded with the support rod (2).
3. An operating tool for the stemming of blast holes in a blast face of an underground excavation work according to claim 1, characterized in that: The automatic control pressure regulating valve (5) is a diaphragm pressure reducing valve.
4. An operating tool for the stemming of blast holes in a blast face of an underground excavation work according to claim 1, characterized in that: The middle part of the galvanized empty pipe (1) is a curved arc shape, and the radius of the arc is designed to be 20 cm.
5. An operating tool for the stemming of blast holes in a blast face of an underground excavation work according to claim 2, characterized in that: The support rod (2) is a solid square tube with a diameter of 2 cm and a length of 30 cm; The support rod (2) is obliquely welded along the two sides of the bending center of the galvanized empty pipe (1) by 20 cm.
6. An operating tool for the stemming of blast holes in a working face of a blasting operation for underground excavation work according to claim 1, 2, 3, 4 or 5, characterized in that: The joint (3) is a cuboid with a size of 3 cm×3 cm×5 m, and the joint (3) and the rubber hose (4) are connected and fixed by a latch.
7. An operating tool for the stemming of blast holes in a blast face of an underground excavation work according to claim 6, characterized in that: The outer diameter of the rubber hose (4) is 32 mm, and the inner diameter is 26 mm.
8. An operating tool for the stemming of blast holes in a blast face of an underground excavation work according to claim 7, characterized in that: The outer diameter of the galvanized empty pipe (1) is 32 mm, and the inner diameter is 26 mm.