A mine blasting hole cleaning device

Abstract

The utility model relates to the field of blasting technique, and disclose a kind of mine blasting blasthole cleaning device, comprising: rack, the top of dust absorption box is fixedly installed with the dust absorption pipe for air suction;Dust absorption pipe is connected with hose;Guiding structure, guiding structure includes guide rod, sliding sleeve, mounting seat, limit roller and carrier roller, guide rod is fixedly connected with rack, sliding sleeve is slidably connected with guide rod, mounting seat is fixedly connected with sliding sleeve, two limit rollers are rotatably connected to the top of mounting seat, carrier roller is rotatably arranged in the side of mounting seat, the output shaft of motor is fixedly connected with twisted drill rod and drives twisted drill rod to rotate, twisted drill rod pushes screw cap to make sliding sleeve reciprocate along guide rod radial, and then hose between two limit rollers can be guided and limited, when pipe is retracted, it can inhibit bounce while guaranteeing hose uniform winding on winding machine during winding, facilitate dust cleaning again.

Description

Technical Field

[0001] This utility model relates to the field of blasting technology, and in particular to a device for cleaning blast holes in mine blasting. Background Technology

[0002] During blasting operations, drilling is required. After drilling the blast holes, the debris inside the holes must be cleaned out to prevent the debris from clogging the holes and affecting the subsequent loading of explosives.

[0003] A search revealed a prior art device for cleaning blast holes in mine blasting (publication number: CN219888008U), which includes a frame and cleaning components. The cleaning components include a blower, a suction machine, a filter box, a reversing component, a slag suction pipe, and a suction head. The suction machine and the blower are both mounted on the frame. The filter box is connected to the suction machine. The reversing component is connected to both the filter box and the blower. Both ends of the slag suction pipe are connected to the reversing component and the suction head, respectively. The reversing component is used to adjust the connection between the blower and the filter box and the slag suction pipe, thereby causing the blower to blow air onto the suction head or causing the suction machine to suction the suction head.

[0004] In the prior art, debris is sucked out of the blast hole by a pipe that extends into the blast hole. The pipe is made of a tough and retractable material. The prior art uses a winding method to release and retract the hose. However, the hose lacks guidance and is prone to jumping during release and retraction. Furthermore, it cannot be evenly wound on the winding roller, which is not conducive to the next cleaning use.

[0005] Therefore, we propose a device for cleaning blast holes in mines. Utility Model Content

[0006] The present invention mainly solves the technical problem that the above-mentioned hose cannot be evenly wound and rolled up, and provides a cleaning device for blasting holes in mines.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a mine blasting hole cleaning device, comprising:

[0008] A frame, on the top of which a dust collection box and a fan are fixedly installed. The air inlet of the fan is connected to the chamber of the frame. A dust collection pipe for suction is fixedly installed on the top of the dust collection box. The dust collection pipe is connected to a flexible hose. The frame is also equipped with a winding machine for winding the flexible hose.

[0009] A guide structure, located on one side of the frame, is used to guide and clean the hose. The guide structure includes a guide rod, a sliding sleeve, a mounting base, a limiting roller, and a support roller. The guide rod is fixedly connected to the frame, the sliding sleeve is slidably connected to the guide rod, and the mounting base is fixedly connected to the sliding sleeve. Two limiting rollers are rotatably connected to the top of the mounting base, and the hose passes through the gap between the two limiting rollers. The support roller is rotatably located on one side of the mounting base, and the hose is supported by the support roller.

[0010] In a preferred embodiment of this utility model, the guide structure further includes a nut and a twisted rod. The nut is fixedly installed with the sliding sleeve, and the twisted rod is threadedly connected to the nut and rotatably connected to the frame. A motor-driven twisted rod is fixedly provided on one side of the frame.

[0011] In a preferred embodiment of this utility model, the guide rod is a cylinder, the sliding sleeve is an annulus adapted to the guide rod, the guide rod and the sliding sleeve are fitted with a clearance fit in the center hole, and the sliding sleeve can slide radially along the guide rod.

[0012] In a preferred embodiment of this utility model, the mounting base and the sliding sleeve are integrally formed, the mounting base is located directly above the sliding sleeve, the limiting roller is a cylinder, and the two limiting rollers are symmetrical.

[0013] In a preferred embodiment of this utility model, the idler roller is cylindrical, and a rubber sleeve is fitted over the outside of the idler roller, with a spiral cleaning groove formed on the outer wall of the rubber sleeve.

[0014] In a preferred embodiment of the present invention, the guide structure further includes a sleeve, an extension rod, and positioning holes. An extension rod is provided at each end of the roller, and a plurality of positioning holes are provided on one side of the extension rod. The sleeve is fixedly connected to the mounting base, and the extension rod is slidably connected to the sleeve.

[0015] In a preferred embodiment of this utility model, the sleeve is a square tube, the extension rod is a rectangular rod, the extension rod is fitted with the cavity of the sleeve with a clearance, the extension rod is slidably disposed in the cavity of the sleeve, the external thread of the sleeve is connected with a bolt, the bolt can be inserted into the positioning hole, multiple positioning holes are linearly distributed on the side wall of the extension rod, and the two ends of the roller are respectively rotatably connected to two extension rods.

[0016] This utility model provides a device for cleaning blast holes in mines. It has the following beneficial effects:

[0017] 1. This mining blasting hole cleaning device is fixedly connected to a twisted rod via the output shaft of a motor, which drives the twisted rod to rotate. The twisted rod pushes the nut, causing the sliding sleeve to reciprocate radially along the guide rod. This guides and limits the hose located between two limiting rollers, suppressing jumps during hose unwinding and ensuring that the hose is evenly wound on the winding machine during winding, facilitating subsequent dust extraction and cleaning. A support roller is installed, using a horizontal support roller to lift the hose and prevent folding that could affect air intake. Under the support of the support roller, the hose forms a smooth bend at one end, ensuring that the hose end smoothly enters the blasting hole. During hose winding, the hose rolls and rubs against the support roller, and the rubber sleeve on the support roller cleans the hose, reducing mud and sand residue on the outer surface of the hose and lowering the probability of hose breakage due to repeated unwinding and winding. Integrating lifting and cleaning functions, it is more functional and has a longer service life. The spiral cleaning groove increases the contact and cleaning effect between the hose and the rubber sleeve, and also helps to discharge mud and sand.

[0018] 2. This mining blasting hole cleaning device uses a pull roller to move an extension rod along the chamber of a casing. Tightening bolts locks the extension rod into the corresponding positioning hole, thereby adjusting and fixing the position of the pull roller. The position adjustment of the pull roller adjusts the curvature of the pipe between the limiting roller and the pull roller to ensure that the pipe enters the blasting hole. Attached Figure Description

[0019] Figure 1 This is one of the overall perspective views of this utility model;

[0020] Figure 2 This is the second overall perspective view of the present utility model;

[0021] Figure 3 This is a perspective view of the guide structure of this utility model;

[0022] Figure 4 This is a perspective view of the installation of the idler roller, the limiting roller, and the sliding sleeve of this utility model;

[0023] Figure 5 This is a perspective view of the extension rod and idler roller of this utility model.

[0024] Legend: 10. Frame; 11. Dust collection box; 12. Fan; 13. Dust collection pipe; 14. Winding machine; 20. Guide rod; 21. Sliding sleeve; 22. Mounting base; 23. Limiting roller; 24. Idler roller; 25. Nut; 26. Twisted rod; 30. Sleeve; 31. Extension rod; 32. Positioning hole. Detailed Implementation

[0025] A device for cleaning blast holes in mines, such as Figure 1 and Figure 2 As shown, it includes:

[0026] A frame 10 is provided, with a dust collection box 11 and a fan 12 fixedly installed on its top. The air inlet of the fan 12 is connected to the chamber of the frame 10. A dust collection pipe 13 for suction is fixedly installed on the top of the dust collection box 11. The dust collection pipe 13 is connected to a flexible hose. The frame 10 is also equipped with a winding machine 14 for winding the flexible hose. By drawing air from the chamber of the dust collection box 11 through the fan 12 to create negative pressure, the dust collection pipe 13 sucks the gravel in the blast hole into the dust collection box 11 for collection, thereby cleaning the blast hole.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, a guide structure, disposed on one side of the frame 10, is used for guiding and cleaning the hose. The guide structure includes a guide rod 20, a sliding sleeve 21, a mounting base 22, limiting rollers 23, and a support roller 24. The guide rod 20 is fixedly connected to the frame 10, the sliding sleeve 21 is slidably connected to the guide rod 20, and the mounting base 22 is fixedly connected to the sliding sleeve 21. Two limiting rollers 23 are rotatably connected to the top of the mounting base 22, through which the hose passes. The support roller 24 is rotatably disposed on one side of the mounting base 22, supporting the hose. The guide structure also includes a nut 25 and a twisted rod 26. The nut 25 is fixedly mounted to the sliding sleeve 21. The assembly includes a twisted rod 26 threadedly connected to a nut 25 and rotatably connected to a frame 10. A motor-driven twisted rod 26 is fixedly mounted on one side of the frame 10. The guide rod 20 is cylindrical, and the sliding sleeve 21 is an annular shape adapted to the guide rod 20. The guide rod 20 and the sliding sleeve 21 are clearance-fitted in the center hole, and the sliding sleeve 21 can slide radially along the guide rod 20. The mounting base 22 is integrally formed with the sliding sleeve 21 and is positioned directly above the sliding sleeve 21. The limiting roller 23 is cylindrical, and the two limiting rollers 23 are symmetrical. The support roller 24 is cylindrical, and a rubber sleeve is fitted around the outside of the support roller 24. A spiral cleaning groove is formed on the outer wall of the rubber sleeve.

[0028] In this design, the output shaft of the motor is fixedly connected to the twist rod 26 and drives the twist rod 26 to rotate. The twist rod 26 pushes the nut 25, causing the sliding sleeve 21 to reciprocate radially along the guide rod 20. This guides and limits the hose located between the two limiting rollers 23, suppressing jumps during hose unwinding and ensuring that the hose is evenly wound on the winding machine 14 during winding, facilitating subsequent dust removal and cleaning. The idler roller 24 is set up to support the hose horizontally, preventing hose folding from affecting air intake. Under the support of the idler roller 24, the hose forms a smooth bend at one end to ensure that the hose end can smoothly enter the burst hole. During hose winding, the hose rolls and rubs on the idler roller 24, and the rubber sleeve on the idler roller 24 cleans the hose, reducing the amount of mud and sand residue on the outer surface of the hose and lowering the probability of hose breakage due to repeated unwinding and winding, thus ensuring service life. The spiral cleaning groove can increase the contact and cleaning effect between the hose and the rubber sleeve, and can also be used to discharge mud and sand.

[0029] like Figure 4 and Figure 5 As shown, the guide structure also includes a sleeve 30, an extension rod 31, and positioning holes 32. Each end of the roller 24 is provided with an extension rod 31. Several positioning holes 32 are opened on one side of the extension rod 31. The sleeve 30 is fixedly connected to the mounting base 22, and the extension rod 31 is slidably connected to the sleeve 30. The sleeve 30 is a square tube, and the extension rod 31 is a rectangular rod. The extension rod 31 and the cavity of the sleeve 30 are clearance-fitted. The extension rod 31 is slidably disposed in the cavity of the sleeve 30. The external thread of the sleeve 30 is connected with a bolt, which can be inserted into the positioning hole 32. Multiple positioning holes 32 are linearly distributed on the side wall of the extension rod 31. The two ends of the roller 24 are rotatably connected to two extension rods 31 respectively.

[0030] In this solution, since the position of the idler roller 24 affects the degree of bending of the hose as it enters the rupture hole, the extension rod 31 is moved along the cavity of the sleeve 30 by pulling the idler roller 24. The bolt is tightened so that it is inserted into the positioning hole 32 at the corresponding position to lock the position of the extension rod 31. Thus, the position of the idler roller 24 can be adjusted and fixed. The degree of bending of the pipe between the limit roller 23 and the idler roller 24 is adjusted by adjusting the position of the idler roller 24 to ensure that the pipe enters the rupture hole.

[0031] The working principle of this utility model is as follows: The dust collection box 11 is equipped with a high-efficiency cyclone separator and a pulse-jet cartridge filter. The dust-laden airflow first enters the cyclone separator, separating most of the larger particles of gravel and heavy dust, which fall into the bottom dust collection hopper. The preliminarily purified airflow then passes through the cartridge filter, where the high-efficiency filter cartridges capture fine dust. The purified air is discharged by the fan 12. A pneumatic or manual dust discharge valve is provided at the bottom of the dust collection hopper for easy periodic cleaning. The cartridge filter is connected to a pulse cleaning device (including a compressed air tank, a pulse valve, and a blowpipe) to periodically remove dust from the surface of the cartridges and maintain filtration efficiency. One end of the hose is fixed to the suction pipe 13 by a clamp, and a flat metal suction nozzle is fixedly installed at the other end of the hose. The hose is made of wear-resistant polyurethane (PU) hose with an embedded spiral steel wire skeleton, which has excellent wear resistance, tear resistance, and negative pressure resistance. The length and diameter of the hose need to be adjusted according to the size of the borehole.

[0032] The twisted rod 26 is made of 45# steel with nitriding treatment or stainless steel, and the nut 25 is made of self-lubricating copper alloy (such as tin bronze ZCuSn10P1). A corrugated protective cover is installed outside the meshing area of ​​the twisted rod 26 and the nut 25 to prevent dust from entering, and the protective cover is filled with long-lasting lithium-based grease.

[0033] The motor is a servo motor connected to a PLC controller. The motor's output shaft is fixedly connected to the twist rod 26, driving the twist rod 26 to rotate. The twist rod 26 pushes the nut 25, causing the sliding sleeve 21 to reciprocate radially along the guide rod 20. This guides and limits the hose located between the two limiting rollers 23, suppressing bounce during unwinding and winding while ensuring the hose is evenly wound on the winding machine 14 during winding. A support roller 24 is provided to lift the hose, preventing folding and ensuring air intake. Under the support of the support roller 24, the hose forms a smooth bend at one end to ensure... The hose port smoothly enters the rupture hole. When the hose is wound up, it rolls and rubs on the roller 24. The rubber sleeve on the roller 24 cleans the hose. To improve the cleaning effect, two rollers 24 can be set up in parallel to clean the hose. Pulling the roller 24 moves the extension rod 31 along the cavity of the sleeve 30. Tightening the bolts makes it insert into the positioning hole 32 at the corresponding position to lock the position of the extension rod 31. Thus, the position of the roller 24 can be adjusted and fixed, and the degree of bending of the hose entering the rupture hole can be adjusted. The frame 10 is fixedly placed near the rupture hole.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for cleaning blast holes in mines, characterized in that, include: A frame (10) is provided, on the top of which a dust collection box (11) and a fan (12) are fixedly installed. The air inlet of the fan (12) is connected to the chamber of the frame (10). A dust collection pipe (13) for suction is fixedly installed on the top of the dust collection box (11). The dust collection pipe (13) is connected to a flexible hose. The frame (10) is also provided with a winding machine (14) for winding the flexible hose. A guide structure is provided on one side of the frame (10) for guiding and cleaning the hose. The guide structure includes a guide rod (20), a sliding sleeve (21), a mounting base (22), a limiting roller (23), and a support roller (24). The guide rod (20) is fixedly connected to the frame (10). The sliding sleeve (21) is slidably connected to the guide rod (20). The mounting base (22) is fixedly connected to the sliding sleeve (21). Two limiting rollers (23) are rotatably connected to the top of the mounting base (22). The hose passes through the gap between the two limiting rollers (23). The support roller (24) is rotatably provided on one side of the mounting base (22). The hose is supported by the support roller (24).

2. The mine blasting hole cleaning device according to claim 1, characterized in that: The guide structure also includes a nut (25) and a twisted rod (26). The nut (25) is fixedly installed with the sliding sleeve (21). The twisted rod (26) is threadedly connected to the nut (25) and rotatably connected to the frame (10). A motor-driven twisted rod (26) is fixedly provided on one side of the frame (10).

3. The mine blasting hole cleaning device according to claim 1, characterized in that: The guide rod (20) is a cylinder, and the sliding sleeve (21) is a ring adapted to the guide rod (20). The guide rod (20) and the sliding sleeve (21) are in clearance fit with the center hole of the sliding sleeve (21), and the sliding sleeve (21) can slide radially along the guide rod (20).

4. The mine blasting hole cleaning device according to claim 1, characterized in that: The mounting base (22) and the sliding sleeve (21) are integrally formed. The mounting base (22) is located directly above the sliding sleeve (21). The limiting roller (23) is a cylinder with two symmetrical parts.

5. The mine blasting hole cleaning device according to claim 1, characterized in that: The idler roller (24) is a cylinder, and a rubber sleeve is fitted on the outside of the idler roller (24). A spiral cleaning groove is opened on the outer wall of the rubber sleeve.

6. The mine blasting hole cleaning device according to claim 1, characterized in that: The guide structure also includes a sleeve (30), an extension rod (31) and a positioning hole (32). An extension rod (31) is provided at each end of the roller (24). Several positioning holes (32) are provided on one side of the extension rod (31). The sleeve (30) is fixedly connected to the mounting base (22), and the extension rod (31) is slidably connected to the sleeve (30).

7. The mine blasting hole cleaning device according to claim 6, characterized in that: The sleeve (30) is a square tube, and the extension rod (31) is a rectangular rod. The extension rod (31) is in clearance fit with the cavity of the sleeve (30). The extension rod (31) is slidably disposed in the cavity of the sleeve (30). The external thread of the sleeve (30) is connected with a bolt. The bolt can be inserted into the positioning hole (32). Multiple positioning holes (32) are linearly distributed on the side wall of the extension rod (31). The two ends of the roller (24) are rotatably connected to the two extension rods (31) respectively.

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