Tunnel surrounding rock blasting hole slag remover

Abstract

The invention belongs to the technical field of tunnel surrounding rock blasting blast hole slag removal devices, and particularly relates to a tunnel surrounding rock blasting blast hole slag removal device which comprises a slag removal suction head assembly used for stretching into a blast hole to remove slag; the feeding end of the negative pressure dust collection assembly is communicated with the discharging end of the slag removal suction head assembly; the slag removal suction head assembly comprises an inner cylinder and a slag removal suction head, the outer cylinder coaxially sleeves the outer side of the inner cylinder, and the outer cylinder is in sliding fit with the other end of the inner cylinder; the air inlet part is arranged in the outer cylinder, one end of the air inlet part is communicated with the atmosphere, and the other end of the air inlet part extends into the blast hole along with the outer cylinder and then is communicated with the inner cylinder; the fixed end of the reciprocating driving part is arranged on the inner cylinder, the movable end of the reciprocating driving part is connected with the end part of the outer cylinder, and the reciprocating driving part is used for driving the outer cylinder to slide on the inner cylinder in a reciprocating manner; the stone crushing part is fixedly connected to the end, away from the inner cylinder, of the outer cylinder. According to the device, the outer cylinder slides on the outer side of the inner cylinder in a reciprocating mode under the action of the reciprocating driving part, rock blocks remaining on the inner wall of a blast hole are crushed, and the cleaning effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel surrounding rock blasting hole slag cleaners, and particularly relates to a tunnel surrounding rock blasting hole slag cleaner. Background Art

[0002] During the blasting construction process of a tunnel, the layout of blast holes is the primary process, and the quality of its work directly affects the blasting, loading, and transportation of the surrounding rock. Due to the influence of geological conditions and the diversity of ore rocks, the drilled blast holes are sometimes blocked by rock powder and rock blocks falling from the hole mouth or around the hole wall, affecting the loading of explosives, causing blocked holes or waste holes, resulting in the inability to use the blast holes normally and requiring re-drilling. However, the position of each blast hole is the optimal one confirmed through calculation, and re-drilling will affect the blasting effect. Therefore, it is necessary to clean the waste residue in the original blast holes.

[0003] When the existing tunnel surrounding rock blasting hole slag cleaners are in use, they can only suck out the rock powder and small rock block particles in the blasting holes from the blasting holes by relying on negative pressure. The heavier and larger rock blocks will still remain in the holes, and it is necessary for workers to use other tools to take out the rock blocks in the blasting holes. This not only has the problems of incomplete cleaning of the waste residue in the blasting holes and poor cleaning effect, but also requires multiple cleanings of the holes, resulting in a cumbersome cleaning process and low cleaning efficiency. Therefore, there is an urgent need for a tunnel surrounding rock blasting hole slag cleaner to solve these problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a tunnel surrounding rock blasting hole slag cleaner to solve the above problems.

[0005] To achieve the above purpose, the present invention provides the following solution:

[0006] A tunnel surrounding rock blasting hole slag cleaner, comprising:

[0007] A slag cleaning suction head assembly for extending into the blast hole to clean the slag;

[0008] A negative pressure dust collection assembly, the feed end of which is communicated with the discharge end of the slag cleaning suction head assembly;

[0009] The slag cleaning suction head assembly includes:

[0010] An inner cylinder, one end of which is communicated with the feed end of the negative pressure dust collection assembly;

[0011] An outer cylinder, coaxially sleeved outside the inner cylinder, and the outer cylinder is slidably matched with the other end of the inner cylinder;

[0012] An air inlet part, arranged inside the outer cylinder, one end of the air inlet part is communicated with the atmosphere, and the other end of the air inlet part is communicated with the inner cylinder after the outer cylinder extends into the blast hole;

[0013] A reciprocating drive unit, with its fixed end set on the inner cylinder, and the movable end of the reciprocating drive unit connected to the end of the outer cylinder. The reciprocating drive unit is used to drive the outer cylinder to slide reciprocally on the inner cylinder;

[0014] A gravel crushing part, fixedly connected to one end of the outer cylinder away from the inner cylinder.

[0015] Optionally,

[0016] The air intake part includes a number of ventilation pipes. The number of ventilation pipes are circumferentially and equally spaced and fixedly embedded in the inner wall of the outer cylinder. One end of the ventilation pipe extends into the blast hole and is communicated with the inner cylinder, and the other end of the ventilation pipe extends out of the outer cylinder and is communicated with the atmosphere.

[0017] Optionally, the gravel crushing part includes crushing teeth, and the crushing teeth are coaxially and fixedly connected to one end of the outer cylinder away from the inner cylinder.

[0018] Optionally, the reciprocating drive unit includes:

[0019] A magnetic resistance ring, coaxially and fixedly connected to the outside of the inner cylinder;

[0020] Two electromagnetic rings, respectively coaxially and fixedly connected to both sides of the magnetic resistance ring;

[0021] One of the electromagnetic rings is magnetically connected to a first magnetic attraction ring, and the first magnetic attraction ring is coaxially and fixedly connected to the end of the outer cylinder. The first magnetic attraction ring is in sliding fit with the inner cylinder;

[0022] The other electromagnetic ring is magnetically connected to a second magnetic attraction ring, and the second magnetic attraction ring is coaxially sleeved on the outside of the inner cylinder. The inner cylinder is in sliding fit with the second magnetic attraction ring;

[0023] The ventilation pipe is arranged through the electromagnetic ring and the magnetic resistance ring;

[0024] The ventilation pipe is respectively fixed to the first magnetic attraction ring and the second magnetic attraction ring;

[0025] A first elastic part is arranged between the first magnetic attraction ring and the corresponding electromagnetic ring;

[0026] A second elastic part is arranged between the second magnetic attraction ring and the corresponding electromagnetic ring.

[0027] Optionally, the first elastic part includes a second spring. The second spring is coaxially sleeved on the outside of the inner cylinder. One end of the second spring is fixedly connected to the first magnetic attraction ring, and the other end of the second spring is fixedly connected to the corresponding electromagnetic ring.

[0028] Optionally, the second elastic part includes a first spring which is coaxially sleeved outside the inner cylinder. One end of the first spring is fixedly connected to the second magnetic attraction ring, and the other end of the first spring is fixedly connected to the corresponding electromagnetic ring.

[0029] Optionally, a handle is coaxially and fixedly arranged outside one end of the inner cylinder away from the outer cylinder.

[0030] Optionally, the negative pressure dust collection assembly includes:

[0031] A moving part;

[0032] A dust collection bucket which is installed on the moving part, and an exhaust hole is formed in the side wall of the bottom of the dust collection bucket;

[0033] An air suction pump which is fixed in the dust collection bucket through a partition ring. The partition ring divides the dust collection bucket into a dust collection cavity located above and an exhaust cavity located below. The exhaust end of the air suction pump is communicated with the exhaust hole through the exhaust cavity, and the intake end of the air suction pump is communicated with the dust collection cavity;

[0034] A dust collection cloth bag which is located in the dust collection cavity. A cloth bag sealing plate is fixedly connected to the dust collection cloth bag, and the cloth bag sealing plate is detachably arranged in the dust collection bucket;

[0035] A bucket cover which is fixedly connected to the top of the dust collection bucket;

[0036] A connecting hose, one end of which is communicated with the inner cylinder, and the other end of the connecting hose penetrates through the cloth bag sealing plate and the bucket cover and is communicated with the inside of the dust collection cloth bag.

[0037] Optionally, the dust collection bucket is in threaded connection with the cloth bag sealing plate.

[0038] Optionally, the moving part includes:

[0039] A moving trolley, on which a frame is fixedly connected, and the dust collection bucket is fixedly connected to the frame.

[0040] Compared with the prior art, the present invention has the following advantages and technical effects:

[0041] During use, by inserting the slag cleaning and suction head assembly of the device into the blast hole and starting the negative pressure dust collection assembly, the dust in the blast hole will be sucked into the negative pressure dust collection assembly under the action of negative pressure. At the same time, start the reciprocating driving part, and under the action of the reciprocating driving part, the outer cylinder slides reciprocally outside the inner cylinder. When the outer cylinder slides reciprocally, the residual rock blocks on the inner wall of the blast hole are broken by the gravel part and made to fall, and are sucked into the negative pressure dust collection assembly, realizing the cleaning of the blast hole and improving the cleaning effect. Description of the Drawings

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0043] Figure 1 Structural schematic diagram of the slag cleaning suction head assembly of the present invention;

[0044] Figure 2 Structural sectional view of the slag cleaning suction head assembly of the present invention;

[0045] Figure 3 For the present invention Figure 2 Partial enlarged view at A in;

[0046] Figure 4 Structural schematic diagram of the negative pressure dust collection assembly of the present invention;

[0047] Figure 5 Structural schematic diagram of Embodiment 2 of the present invention;

[0048] Among them, 1. Outer cylinder; 2. Crushing teeth; 3. First magnetic attraction ring; 4. Electromagnetic ring; 5. Magnetic resistance ring; 6. Second magnetic attraction ring; 7. Handle; 8. Inner cylinder; 9. First spring; 10. Second spring; 11. Vent pipe; 12. Slag cleaning suction head assembly; 13. Connecting hose; 14. Frame; 15. Mobile trolley; 16. Dust suction bucket; 17. Dust collection cloth bag; 18. Exhaust hole; 19. Suction pump; 20. Partition ring; 21. Cloth bag sealing plate; 22. Bucket cover; 23. Arc-shaped chute; 24. Sliding column. Detailed implementation manners

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0050] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific implementation manners.

[0051] Embodiment 1

[0052] Referring to Figures 1 to 4 , this embodiment discloses a slag cleaner for tunnel surrounding rock blasting holes, including:

[0053] The slag cleaning suction head assembly 12 is used to extend into the blasting hole to clean the slag;

[0054] The negative pressure dust collection assembly has its feeding end communicated with the discharging end of the slag cleaning suction head assembly 12;

[0055] The slag cleaning suction head assembly 12 includes:

[0056] The inner cylinder 8 has one end communicated with the feeding end of the negative pressure dust collection assembly;

[0057] The outer cylinder 1 is coaxially sleeved outside the inner cylinder 8, and the outer cylinder 1 is in sliding fit with the other end of the inner cylinder 8;

[0058] The air inlet part is arranged inside the outer cylinder 1. One end of the air inlet part is communicated with the atmosphere, and the other end of the air inlet part is communicated with the inner cylinder 8 after the outer cylinder 1 extends into the blast hole;

[0059] The reciprocating driving part has its fixed end arranged on the inner cylinder 8, and the movable end of the reciprocating driving part is connected with the end of the outer cylinder 1. The reciprocating driving part is used to drive the outer cylinder 1 to reciprocate and slide on the inner cylinder 8;

[0060] The gravel crushing part is fixedly connected to the end of the outer cylinder 1 away from the inner cylinder 8.

[0061] During use, by extending the slag cleaning suction head assembly 12 of the device into the blast hole and starting the negative pressure dust collection assembly, the dust in the blast hole will be sucked into the negative pressure dust collection assembly under the negative pressure. At the same time, start the reciprocating driving part. Under the action of the reciprocating driving part, the outer cylinder 1 reciprocates and slides on the outside of the inner cylinder 8. When the outer cylinder 1 reciprocates and slides, the residual rock blocks on the inner wall of the blast hole are broken by the gravel crushing part and made to fall, and are sucked into the negative pressure dust collection assembly, realizing the cleaning of the blast hole and improving the cleaning effect.

[0062] As an optional implementation mode,

[0063] The air inlet part includes a plurality of ventilation pipes 11. The plurality of ventilation pipes 11 are circumferentially and equally spaced and fixedly embedded on the inner wall of the outer cylinder 1. One end of the ventilation pipe 11 extends into the blast hole and is communicated with the inner cylinder 8, and the other end of the ventilation pipe 11 extends out of the outer cylinder 1 and is communicated with the atmosphere.

[0064] When the outer cylinder 1 extends into the blast hole, the blast hole is communicated with the negative pressure dust collection assembly through the inner cylinder 8. At the same time, the blast hole is communicated with the external atmosphere through the ventilation pipes 11. The negative pressure dust collection assembly generates negative pressure suction, and the external air enters the blast hole through the ventilation pipes 11, and then the dust is carried by the inner cylinder 8 into the negative pressure dust collection assembly.

[0065] As an optional implementation mode, the gravel crushing part includes crushing teeth 2, and the crushing teeth 2 are coaxially and fixedly connected to the end of the outer cylinder 1 away from the inner cylinder 8.

[0066] As an optional implementation mode, the reciprocating driving part includes:

[0067] The magnetic resistance ring 5 is coaxially and fixedly connected to the outside of the inner cylinder 8;

[0068] Two electromagnetic rings 4 are coaxially and fixedly connected to both sides of the magnetic shielding ring 5 respectively;

[0069] One of the electromagnetic rings 4 is magnetically connected to a first magnetic attraction ring 3. The first magnetic attraction ring 3 is coaxially and fixedly connected to the end of the outer cylinder 1, and the first magnetic attraction ring 3 is in sliding fit with the inner cylinder 8;

[0070] The other electromagnetic ring 4 is magnetically connected to a second magnetic attraction ring 6. The second magnetic attraction ring 6 is coaxially sleeved outside the inner cylinder 8, and the inner cylinder 8 is in sliding fit with the second magnetic attraction ring 6;

[0071] The ventilation pipe 11 penetrates through the electromagnetic ring 4 and the magnetic shielding ring 5;

[0072] The ventilation pipe 11 is fixed to the first magnetic attraction ring 3 and the second magnetic attraction ring 6 respectively;

[0073] A first elastic part is arranged between the first magnetic attraction ring 3 and the corresponding electromagnetic ring 4;

[0074] A second elastic part is arranged between the second magnetic attraction ring 6 and the corresponding electromagnetic ring 4.

[0075] As an optional implementation manner, the first elastic part includes a second spring 10. The second spring 10 is coaxially sleeved outside the inner cylinder 8. One end of the second spring 10 is fixedly connected to the first magnetic attraction ring 3, and the other end of the second spring 10 is fixedly connected to the corresponding electromagnetic ring 4.

[0076] As an optional implementation manner, the second elastic part includes a first spring 9. The first spring 9 is coaxially sleeved outside the inner cylinder 8. One end of the first spring 9 is fixedly connected to the second magnetic attraction ring 6, and the other end of the first spring 9 is fixedly connected to the corresponding electromagnetic ring 4.

[0077] During use, the two electromagnetic rings 4 are electrically connected to a controller. The controller is preferably a PLC programmable controller. The controller is electrically connected to a power supply. The controller is used to control the power supply to supply power to the electromagnetic rings 4. Under the action of the controller, the two electromagnetic rings 4 are alternately powered on to generate magnetism. When the electromagnetic ring 4 on the side of the first magnetic attraction ring 3 is powered on, a magnetic force attraction is generated between this electromagnetic ring 4 and the first magnetic attraction ring 3, and the outer cylinder 1 moves towards the direction close to the inner cylinder 8, and the second spring 10 is compressed. After this electromagnetic ring 4 is powered off, the other electromagnetic ring 4 is powered on to attract the second magnetic attraction ring 6, and at the same time the second spring 10 is released and the first spring 9 is compressed. By alternately powering on the two electromagnetic rings 4, the reciprocating movement of the outer cylinder 1 on the inner cylinder 8 is realized, and high-frequency vibration can be realized by controlling the power-on time of the electromagnetic rings 4.

[0078] As an optional implementation manner, a handle 7 is coaxially fixed to the outside of the end of the inner cylinder 8 away from the outer cylinder 1.

[0079] As an optional implementation manner, the negative pressure dust collection assembly includes:

[0080] A moving part;

[0081] A dust collection bucket 16 is installed on the moving part, and an exhaust hole 18 is provided on the side wall at the bottom of the dust collection bucket 16;

[0082] An air suction pump 19 is fixed in the dust collection bucket 16 through a partition ring 20. The partition ring 20 divides the dust collection bucket 16 into a dust collection chamber located above and an exhaust chamber located below. The exhaust end of the air suction pump 19 is communicated with the exhaust hole 18 through the exhaust chamber, and the intake end of the air suction pump 19 is communicated with the dust collection chamber;

[0083] A dust collection cloth bag 17 is located in the dust collection chamber. The dust collection cloth bag 17 is fixedly connected with a cloth bag sealing plate 21, and the cloth bag sealing plate 21 is detachably arranged in the dust collection bucket 16;

[0084] A bucket cover 22 is fixedly connected to the top of the dust collection bucket 16;

[0085] A connecting hose 13 has one end communicated with the inner cylinder 8, and the other end of the connecting hose 13 penetrates through the cloth bag sealing plate 21 and the bucket cover 22 and is communicated with the inside of the dust collection cloth bag 17.

[0086] As an optional implementation manner, the dust collection bucket 16 is threadedly connected with the cloth bag sealing plate 21.

[0087] The air suction pump 19 generates vacuum negative pressure through a high-speed rotating impeller or a reciprocating diaphragm, so as to adsorb dust and particulate matters. The air suction pump 19 mainly consists of a motor, an impeller (or diaphragm), a volute, a filtering system and a dust collection device.

[0088] The air suction pump usually adopts a single-phase series-wound motor or a DC brushless motor for driving. The single-phase series-wound motor can reach a speed of 20,000 - 25,000 r / min, provides high torque and soft mechanical characteristics, and is suitable for frequent start-stop and high-load scenarios; the brushless motor has the advantages of low electromagnetic interference, long service life (up to 15,000 hours) and energy saving, and is applicable to environments with high requirements for silence and stability such as medical treatment and laboratories.

[0089] The vortex air pump forms a centrifugal force through the high-speed rotation of the impeller, and the air is accelerated and compressed along the spiral track and finally discharged through the volute and the guide wheel to achieve negative pressure suction. The wind pressure of such a structure can reach 32 kPa, and it is suitable for industrial dust collection and material conveying.

[0090] The diaphragm vacuum pump uses a motor to drive the diaphragm to reciprocate, changing the volume of the pump chamber to form a vacuum. Its characteristics are strong suction force (the vacuum degree reaches -90 kPa), allowing the medium to contain moisture, and no need for lubricating oil, and it is suitable for medical equipment or precision instruments.

[0091] The auxiliary system includes a multi-stage filtering device (such as a HEPA filter element, a polyester bag) and a noise reduction design. For example, the medical-grade air suction pump adopts double filtration (M-grade + H14-grade filter elements) to isolate harmful dust, and at the same time controls the noise below 50 dB through a metal muffler.

[0092] The working process of the suction pump can be divided into three stages: negative pressure generation, air flow circulation, and filtration and discharge:

[0093] Negative pressure generation: The motor drives the impeller or diaphragm to rotate at high speed, and the volume in the pump chamber changes periodically. The air pressure at the inlet drops suddenly to form a vacuum (for example, the vortex pump can reach -85 kPa, and the diaphragm pump can reach -91 kPa). At this time, the outside air and dust are sucked into the pump due to the pressure difference.

[0094] Air flow circulation: The inhaled air flow is guided by the volute, and is accelerated under the compression of the impeller or diaphragm. Part of the kinetic energy is converted into static pressure energy. For example, the double-head pump reduces the air flow pulsation through a symmetric cavity design to ensure a stable flow rate (such as the average flow rate of the VFY series is 5 - 11 L / min).

[0095] Filtration and discharge: After the dust-containing gas passes through a multi-stage filtration system (such as star-shaped filter bags, anti-static filter elements), the clean air is discharged through the motor cooling air outlet, while the particulate matter is intercepted in the dust collection bag or container. Some industrial models also support the "simultaneous blowing and suction" function, which can cooperate with external devices to achieve automatic cleaning.

[0096] Based on the public use of this device, this device is preferably a vortex air pump with a high wind pressure (>30 kPa) and a large flow rate (>300 m 3 / h), such as the RB-81D-2 type suction pump, and is equipped with a high-temperature resistant filter element.

[0097] As an alternative implementation, the moving part includes:

[0098] A moving trolley 15, on which a frame 14 is fixedly connected, and a dust collection bucket 16 is fixedly connected to the frame 14.

[0099] During use, the dust collection bucket 16 is moved to the working area through the moving trolley 15. The suction pump 19 is started, and the air in the dust collection chamber is discharged from the exhaust hole 18 through the suction pump 19. At the same time, a negative pressure environment is formed in the dust collection chamber, and the air in the blast hole is sucked in through the connecting hose 13. The air containing dust and slag in the blast hole is intercepted by the dust collection cloth bag 17, so that the dust and slag are collected by the dust collection cloth bag 17, which is convenient for centralized cleaning.

[0100] Example 2

[0101] Reference Figure 5 In this example, the difference from Example 1 is that an arc-shaped sliding groove 23 is provided on the outer wall of the inner cylinder 8, and a sliding column 24 is slidably connected in the arc-shaped sliding groove 23, and the sliding column 24 is fixedly connected to the inner wall of the outer cylinder 1.

[0102] When the reciprocating driving part acts, the outer cylinder 1 is slidably arranged relative to the inner cylinder 8. At the same time, the sliding column 24 is fixedly connected to the inner wall of the outer cylinder 1, and the sliding column 24 will slide in the arc-shaped chute 23. Under the action of the arc-shaped chute 23, the outer cylinder 1 will spin relative to the inner cylinder 8 while sliding. When the outer cylinder 1 reciprocates, it can also achieve reciprocating self-rotation. At this time, the firm convex part on the inner wall of the blast hole by the crushing teeth 2 will be simultaneously subjected to high-frequency vibration impact and reciprocating rotary cutting, and is more likely to fall off.

[0103] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, 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 should not be construed as a limitation to the present invention.

[0104] The embodiments described above are only used to describe the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A slag cleaner for blasting holes in tunnel surrounding rock, characterized in that Comprising: A slag cleaning suction head assembly (12) for extending into a blast hole to clean slag; A negative pressure dust collection assembly, the feeding end of which is communicated with the discharging end of the slag cleaning suction head assembly (12); The slag cleaning suction head assembly (12) includes: An inner cylinder (8), one end of which is communicated with the feeding end of the negative pressure dust collection assembly; An outer cylinder (1) coaxially sleeved outside the inner cylinder (8), and the outer cylinder (1) is slidably fitted at the other end of the inner cylinder (8); An air inlet part arranged inside the outer cylinder (1), one end of the air inlet part is communicated with the atmosphere, and the other end of the air inlet part is communicated with the inner cylinder (8) after the outer cylinder (1) extends into the blast hole; A reciprocating driving part, the fixed end of which is arranged on the inner cylinder (8), and the movable end of the reciprocating driving part is connected with the end of the outer cylinder (1), and the reciprocating driving part is used for driving the outer cylinder (1) to reciprocally slide on the inner cylinder (8); A gravel part fixedly connected to the end of the outer cylinder (1) far from the inner cylinder (8).

2. The tunnel surrounding rock blasting blast hole slag cleaner according to claim 1, characterized in that: The air inlet part includes a plurality of ventilation pipes (11), and the plurality of ventilation pipes (11) are circumferentially and equally spaced and fixedly embedded on the inner wall of the outer cylinder (1). One end of the ventilation pipe (11) extends into the blast hole and is communicated with the inner cylinder (8), and the other end of the ventilation pipe (11) extends out of the outer side of the outer cylinder (1) and is communicated with the atmosphere.

3. The slag cleaning device for tunnel surrounding rock blasting holes according to claim 1, characterized in that: The gravel part includes a crushing tooth (2), and the crushing tooth (2) is coaxially and fixedly connected to the end of the outer cylinder (1) far from the inner cylinder (8).

4. The slag cleaning device for tunnel surrounding rock blasting holes according to claim 2, characterized in that: The reciprocating driving part includes: A magnetic resistance ring (5) coaxially and fixedly connected to the outside of the inner cylinder (8); Two electromagnetic rings (4) respectively coaxially and fixedly connected to both sides of the magnetic resistance ring (5); One of the electromagnetic rings (4) is magnetically connected with a first magnetic attraction ring (3), and the first magnetic attraction ring (3) is coaxially and fixedly connected to the end of the outer cylinder (1), and the first magnetic attraction ring (3) is slidably fitted with the inner cylinder (8); The other electromagnetic ring (4) is magnetically connected with a second magnetic attraction ring (6), and the second magnetic attraction ring (6) is coaxially sleeved outside the inner cylinder (8), and the inner cylinder (8) is slidably fitted with the second magnetic attraction ring (6); The ventilation pipe (11) penetrates through the electromagnetic ring (4) and the magnetic resistance ring (5); The ventilation pipe (11) is respectively fixed to the first magnetic attraction ring (3) and the second magnetic attraction ring (6); A first elastic part is arranged between the first magnetic attraction ring (3) and the corresponding electromagnetic ring (4); A second elastic part is arranged between the second magnetic attraction ring (6) and the corresponding electromagnetic ring (4).

5. The slag cleaning device for tunnel surrounding rock blasting holes according to claim 4, characterized in that: The first elastic part includes a second spring (10), the second spring (10) is coaxially sleeved outside the inner cylinder (8), one end of the second spring (10) is fixedly connected to the first magnetic attraction ring (3), and the other end of the second spring (10) is fixedly connected to the corresponding electromagnetic ring (4).

6. The slag cleaning device for tunnel surrounding rock blasting holes according to claim 4, characterized in that: The second elastic part includes a first spring (9), the first spring (9) is coaxially sleeved outside the inner cylinder (8), one end of the first spring (9) is fixedly connected to the second magnetic attraction ring (6), and the other end of the first spring (9) is fixedly connected to the corresponding electromagnetic ring (4).

7. A slag cleaning device for tunnel surrounding rock blasting holes according to claim 1, characterized in that: A handle (7) is coaxially fixed to the outside of one end of the inner cylinder (8) away from the outer cylinder (1).

8. The slag cleaning device for blasting holes in tunnel surrounding rock according to claim 1, wherein: The negative pressure dust collection assembly includes: A moving part; A dust collection bucket (16) installed on the moving part, and an exhaust hole (18) is formed in the bottom side wall of the dust collection bucket (16); An air suction pump (19) fixed in the dust collection bucket (16) through a partition ring (20), the partition ring (20) divides the dust collection bucket (16) into a dust collection chamber located above and an exhaust chamber located below, the exhaust end of the air suction pump (19) is communicated with the exhaust hole (18) through the exhaust chamber, and the intake end of the air suction pump (19) is communicated with the dust collection chamber; A dust collection cloth bag (17) is located in the dust collection chamber, the dust collection cloth bag (17) is fixedly connected with a cloth bag sealing plate (21), and the cloth bag sealing plate (21) is detachably arranged in the dust collection bucket (16); A bucket cover (22) is fixedly connected to the top of the dust collection bucket (16); A connecting hose (13), one end of which is communicated with the inner cylinder (8), and the other end of the connecting hose (13) penetrates through the cloth bag sealing plate (21) and the bucket cover (22) to be communicated with the inside of the dust collection cloth bag (17).

9. The slag cleaning device for tunnel surrounding rock blasting holes according to claim 8, characterized in that: The dust collection bucket (16) is threadedly connected to the cloth bag sealing plate (21).

10. A slag cleaning device for tunnel surrounding rock blasting holes according to claim 8, characterized in that: The moving part includes: A moving plate cart (15), a frame (14) is fixedly connected to the moving plate cart (15), and the dust collection bucket (16) is fixedly connected to the frame (14).

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