Dust removal device of coal mine fully-mechanized coal winning machine

Abstract

The utility model belongs to the technical field of dust removal, in particular to a dust removal device of a coal mine roadheader, which comprises a mounting plate, a mounting cover fixed on the upper surface of the mounting plate and a dust collector mounted in the mounting cover, the output end of the dust collector is fixedly connected with a dust discharge pipe, and the dust discharge pipe penetrates through the inside of the mounting cover. The dust collector is arranged on the mounting plate, extends to the outside of the mounting cover and is fixedly communicated with a collection box outside the mounting cover, the collection box is fixedly connected with the mounting plate, a dust collection pipe is fixed to the input end of the dust collector, a dust collection cover is fixed to one end of the dust collection pipe, and a cleaning assembly is mounted on the collection box. According to the device, dust on the filter screen plate can fall off due to vibration, the vibration cleaning effect is better especially for dust closely attached to the filter screen plate, the use effect of the device is improved, bristles do not need to be replaced regularly due to use of the brush plate, and the actual use requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal, and in particular relates to a dust removal device for a coal mine excavator. Background Art

[0002] The tunnel boring machine is a comprehensive mechanized equipment that integrates multiple functions such as tunneling, rock loading, coal transportation, and even support and nailing. Generally, after using comprehensive mechanized tunneling, the tunneling progress can be increased by more than 30 times compared with the tunneling process of drilling and blasting. When the tunnel boring machine is tunneling and excavating coal, its head will mostly generate a lot of dust when it rotates and crushes the coal, which blocks the sight of the workers, so it needs to be equipped with dust removal equipment;

[0003] After checking the disclosure (announcement) number; CN212716727U discloses a coal mine comprehensive excavation working face dust removal device, which discloses "the coal mine comprehensive excavation working face dust removal device includes a mounting block; a first box body, the first box body is fixedly mounted on the mounting block; an exhaust fan, the exhaust fan is fixedly mounted on the bottom inner wall of the first box body; an air inlet pipe, the air inlet pipe is fixedly mounted on the top of the first box body, the bottom end of the air inlet pipe extends into the first box body and is fixedly connected to the air inlet of the exhaust fan, etc., having The brush plate cleans the O-shaped filter to avoid blockage caused by excessive dust. The filter can be cleaned. When the dust needs to be dumped, the slide bar is pulled to slide and move the slide bar away from the second slot. At the same time, the slide bar drives the steel ring to move. The steel ring squeezes the spring to generate pressure. The handle is held to drive the second box to move to the left. The second box drives the block away from the first slot. The second box drives the connecting pipe away from the air outlet pipe, and the second box is pulled out. The dust in the second box is dumped out through the discharge pipe. The dust storage box has the advantages of convenient disassembly and assembly.

[0004] When the above design is used, although the brush plate is used to clean the O-shaped filter to avoid clogging caused by excessive dust, it has the advantage of being able to clean the filter. However, when the brush plate cleans the dust on the surface of the filter, it is difficult to clean the dust tightly attached to the inside of the filter. Moreover, when the brush plate is used to clean the filter, the bristles need to be replaced regularly, which reduces the use effect of the device.

[0005] In order to solve the above problems, a dust removal device for a coal mine excavator is proposed in the present application. Utility Model Content

[0006] To solve the problems raised in the above background technology. The utility model provides a coal mine excavator dust removal device, which can make the dust on the filter screen fall off due to vibration, especially for those dusts that are closely attached to the filter screen, the vibration cleaning effect is better, thereby improving the use effect of the device, and there is no need to regularly replace the bristles due to the use of the brush plate, which meets the actual use needs.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust removal device for a coal mine comprehensive excavator, comprising a mounting plate, a mounting cover fixed on the upper surface of the mounting plate, and a dust collector installed inside the mounting cover, the output end of the dust collector is fixedly connected with a dust exhaust pipe, and the dust exhaust pipe passes through the inside of the mounting cover, extends to the outside of the mounting cover, and is connected and fixed to a collection box outside the mounting cover, the collection box is fixedly connected to the mounting plate, the input end of the dust collector is fixed with a dust suction pipe, one end of the dust suction pipe is fixed with a dust suction cover, and a cleaning component is installed on the collection box, the cleaning component comprises a square cover fixed on the upper surface of the collection box, and a support frame and a device fixed inside the square cover. A filter screen is arranged above the support frame, a fixing frame is arranged above the filter screen, symmetrically arranged pull rods are fixed to the upper surface of the filter screen, a spring 1 is wound around the surface of the pull rods, a connecting plate is fixed between two groups of the pull rods, a U-shaped frame is fixed to the upper surface of the collecting box close to the square cover, an electric telescopic rod is fixed to the surface of the U-shaped frame, a socket is fixed to the output end of the electric telescopic rod, a symmetrically arranged limit block is slidably connected to the inside of the socket, a spring 2 is fixed between the limit block and the socket, a strip frame is fixed to the surface of the limit block, and symmetrically arranged extrusion plates are fixed to the surface of the U-shaped frame, and the extrusion plates correspond to the strip frame.

[0008] As a preferred embodiment of the utility model of a dust removal device for a coal mine excavator, the fixed frame and the square cover are fixedly connected, the two ends of the spring are respectively fixedly connected to the fixed frame and the filter screen, the surface of the fixed frame is provided with a sliding hole adapted to the pull rod, the pull rod and the fixed frame are slidably connected through the sliding hole, the surface of the holder is provided with a limiting groove adapted to the limiting block, the limiting block and the holder are slidably connected through the limiting groove, the surface of the holder is provided with a moving hole adapted to the strip frame, the strip frame and the holder are slidably connected through the moving hole.

[0009] As a preferred embodiment of the dust removal device of a coal mine excavator of the utility model, the surface of the connecting plate is provided with symmetrically arranged installation grooves, and a roller one is arranged in the installation groove, and the roller one is rotatably connected to the connecting plate through a rotating shaft, and the interior of the strip frame is rotatably connected to a roller two through a rotating shaft.

[0010] As a preferred embodiment of the utility model of a dust removal device for a coal mine excavator, a collection box is arranged inside the collection box, symmetrically arranged lock buckles are fixed to the surface of the collection box, and a lock hook is fixed to the side of the surface of the collection box close to the lock buckle.

[0011] As a preferred embodiment of the utility model of a dust removal device for a coal mine excavator, a dustproof component is installed on the collecting box, and the dustproof component includes a water pump fixed on the upper surface of the collecting box, a water tank fixed on the upper surface of the mounting cover, and a water pipe fixed on the output end of the water pump, a connecting pipe is fixed on the input end of the water pump, and the connecting pipe and the water tank are fixedly connected, and one end of the water pipe passes through the interior of the collecting box and is fixedly connected to a water mist joint inside the collecting box.

[0012] As a preferred embodiment of the dust removal device of a coal mine excavator of the utility model, a drainage pipe is fixed on the surface of the water supply pipe, a water mist nozzle is fixed at one end of the drainage pipe, the surface of the drainage pipe is fixedly connected to the water tank through a mounting block, a control valve 1 is installed inside the drainage pipe, and a control valve 2 is installed inside the water supply pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By setting up a cleaning component, the dust on the filter plate can be made to fall off due to vibration, especially for the dust that is tightly attached to the filter plate. The vibration cleaning effect is better, thereby improving the use effect of the device. There is no need to regularly replace the bristles due to the use of the brush plate, which meets the actual use needs. A dust-proof component is added to this mechanism to soak the dust, thereby preventing the dust from flying again when it is removed, resulting in reduced air quality and affecting the environment, thereby further improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the connecting parts such as the installation cover and the collection box in the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the U-shaped frame and the electric telescopic rod and other connecting parts in the utility model;

[0019] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure at point A;

[0020] Figure 5 It is a structural cross-sectional view of connecting parts such as a square cover and a supporting frame in the utility model.

[0021] In the figure: 1. mounting plate; 2. vacuum cleaner; 3. mounting cover; 4. collection box; 5. dust suction pipe; 6. cleaning assembly; 601. square cover; 602. support frame; 603. filter screen; 604. pull rod; 605. fixing frame; 606. spring 1; 607. connecting plate; 608. roller 1; 609. U-shaped frame; 610. electric telescopic rod; 611. extrusion plate; 612. holder; 613. limit block; 614. spring 2; 615. strip frame; 616. roller 2; 617. lock; 618. collection box; 619. lock hook; 7. dustproof assembly; 701. water tank; 702. water pump; 703. water pipe; 704. drain pipe; 705. control valve 1; 706. control valve 2; 707. water mist nozzle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1 As shown:

[0025] A dust removal device for a coal mine excavator comprises a mounting plate 1, a mounting cover 3 fixed on the upper surface of the mounting plate 1, and a dust collector 2 installed inside the mounting cover 3. The output end of the dust collector 2 is fixedly connected with a dust exhaust pipe, and the dust exhaust pipe passes through the interior of the mounting cover 3, extends to the outside of the mounting cover 3, and is connected and fixed to a collection box 4 outside the mounting cover 3. The collection box 4 is fixedly connected to the mounting plate 1. A dust collection pipe 5 is fixed to the input end of the dust collector 2, and a dust collection cover is fixed to one end of the dust collection pipe 5.

[0026] In this implementation scheme: the existing device {publication (announcement) number}: CN212716727U discloses a dust removal device for a coal mine comprehensive excavation working face. This application makes further improvements on this existing main body. For details, please refer to the disclosed technology below; to solve the technical problems existing in this prior art, as disclosed in the background technology above, "when the above-mentioned design is in use, although the O-shaped filter is cleaned by a brush plate to avoid blockage caused by excessive dust, it has the advantage of being able to clean the filter, but when the brush plate cleans the dust on the surface of the filter, it is difficult to clean the dust tightly attached to the inside of the filter, and when using the brush plate to clean the filter, the bristles need to be replaced regularly, which reduces the use effect of the device." In terms of use, this problem is obviously a real problem that exists and is relatively difficult to solve. In view of this, in order to solve this technical problem, a cleaning component 6 and a dustproof component 7 are added to the application document, and the electrical equipment involved in this product are all powered by an external power supply.

[0027] More specifically:

[0028] like Figure 1-Figure 5 As shown:

[0029] A cleaning assembly 6 is installed on the collection box 4, and the cleaning assembly 6 includes a square cover 601 fixed on the upper surface of the collection box 4, a support frame 602 fixed inside the square cover 601, and a filter screen plate 603 arranged above the support frame 602. A fixing frame 605 is arranged above the filter screen plate 603. A symmetrically arranged pulling rod 604 is fixed on the upper surface of the filter screen plate 603. A spring 606 is wound around the surface of the pulling rod 604. A connecting plate 607 is fixed between the two sets of pulling rods 604. A U-shaped frame 609 is fixed on one side of the surface close to the square cover 601, an electric telescopic rod 610 is fixed on the surface of the U-shaped frame 609, a holder 612 is fixed on the output end of the electric telescopic rod 610, a symmetrically arranged limit block 613 is slidably connected inside the holder 612, a spring 2 614 is fixed between the limit block 613 and the holder 612, a strip frame 615 is fixed on the surface of the limit block 613, and symmetrically arranged extrusion plates 611 are fixed on the surface of the U-shaped frame 609, and the extrusion plates 611 correspond to the strip frame 615;

[0030] The fixed frame 605 and the square cover 601 are fixedly connected, and the two ends of the spring 606 are respectively fixedly connected to the fixed frame 605 and the filter screen plate 603. The surface of the fixed frame 605 is provided with a sliding hole adapted to the pull rod 604, and the pull rod 604 and the fixed frame 605 are slidably connected through this sliding hole. The surface of the holder 612 is provided with a limiting groove adapted to the limiting block 613, and the limiting block 613 and the holder 612 are slidably connected through this limiting groove. The surface of the holder 612 is provided with a moving hole adapted to the strip frame 615, and the strip frame 615 and the holder 612 are slidably connected through this moving hole.

[0031] In this embodiment: when the coal mining machine dust removal device is used, the mounting plate 1 is installed at the designated position of the coal mining machine, and the vacuum cleaner 2 is started first, and then the dust generated by the coal mining machine during excavation is sucked into the dust suction pipe 5, and discharged to the inside of the collection box 4 through the dust discharge pipe for collection, and falls into the inside of the collection box 618. At this time, the air is discharged through the position of the square cover 601, and the air dust is filtered through the filter plate 603. Then, the electric telescopic rod 610 is started, thereby driving the card seat 612 to move downward, When the card base 612 moves downward, when the limit block 613 on the card base 612 approaches the connecting plate 607, the limit block 613 and the connecting plate 607 are squeezed and the second spring 614 is compressed until the limit block 613 is completely moved to the inside of the card base 612. When the limit block 613 is released from squeezing, the second spring 614 rebounds and drives the limit block 613 to extend, so that the two groups of limit blocks 613 are stuck under the connecting plate 607. Then the electric telescopic rod 610 contracts and drives the card base 612 and the limit block 613 to move simultaneously. The filter screen 603 moves upward, and the limit block 613 drives the connecting plate 607 to move upward, and the two sets of pull rods 604 are driven upward by the connecting plate 607, and the filter screen plate 603 is driven upward by the pull rod 604. At this time, the filter screen plate 603 compresses the spring 1 606, and as the holder 612 moves upward, the bar frame 615 is driven to move upward. When the bar frame 615 contacts the extrusion plate 611, the extrusion plate 611 squeezes the bar frame 615 to move horizontally, and as the bar frame 615 moves horizontally, the limit block 613 is driven to move upward. Move, with the movement of the limit block 613, the limit lock of the connecting plate 607 is released, and at this time the spring 606 rebounds and drives the filter plate 603 to move downward, so that the filter plate 603 collides with the supporting frame 602, and the filter plate 603 vibrates, which can make the dust on the filter plate 603 fall off due to the vibration, especially for those dusts that are tightly attached to the filter plate 603, the vibration cleaning effect is better, thereby improving the use effect of the device, and there is no need to regularly replace the bristles due to the use of the brush plate, so as to meet the actual use needs.

[0032] Going further;

[0033] In an optional embodiment, the surface of the connecting plate 607 is provided with symmetrically arranged installation grooves, and a roller 1 608 is arranged in the installation groove. The roller 1 608 is rotatably connected to the connecting plate 607 through a rotating shaft, and the interior of the bar frame 615 is rotatably connected to a roller 2 616 through a rotating shaft.

[0034] In this embodiment: when roller one 608 contacts the limit block 613, roller one 608 rolls along the inclined surface of the limit block 613, so that the setting of roller one 608 can reduce the friction between the limit block 613 and the connecting plate 607, and improve the smoothness of the movement of the limit block 613. The setting of roller two 616 can reduce the friction between the extrusion plate 611 and the strip frame 615, and improve the smoothness of the extrusion plate 611 on the strip frame 615.

[0035] Going further;

[0036] In an optional embodiment, a collection box 618 is disposed inside the collection box 4 , symmetrically arranged lock buckles 617 are fixed to the surface of the collection box 4 , and a locking hook 619 is fixed to one side of the surface of the collection box 618 close to the lock buckles 617 .

[0037] In this embodiment: by opening the lock buckle 617, the lock buckle 617 and the lock hook 619 are separated, thereby releasing the lock of the collection box 618, so that the collection box 618 can be pulled out and the dust can be cleaned, thereby improving the convenience of dust cleaning.

[0038] Further,

[0039] In an optional embodiment, a dustproof component 7 is installed on the collecting box 4, and the dustproof component 7 includes a water pump 702 fixed on the upper surface of the collecting box 4, a water tank 701 fixed on the upper surface of the mounting cover 3, and a water pipe 703 fixed at the output end of the water pump 702. A connecting pipe is fixed to the input end of the water pump 702, and the connecting pipe and the water tank 701 are fixedly connected. One end of the water pipe 703 passes through the interior of the collecting box 4 and is fixedly connected to the water mist joint inside the collecting box 4.

[0040] In this embodiment: when it is necessary to clean the dust collected in the collection box 618, the water pump 702 is started to pump out the water inside the water tank 701 and discharge it into the water pipe 703, and then discharge it through the spray joint (not shown in the figure) to soak the dust, thereby avoiding the dust from flying again when cleaning, resulting in reduced air quality and affecting the environment, thereby further improving the use effect of the device.

[0041] Going further;

[0042] In an optional embodiment, a drain pipe 704 is fixed to the surface of the water pipe 703, a water mist nozzle 707 is fixed to one end of the drain pipe 704, the surface of the drain pipe 704 is fixedly connected to the water tank 701 through a mounting block, a control valve 1 705 is installed inside the drain pipe 704, and a control valve 2 706 is installed inside the water pipe 703.

[0043] In this embodiment: close control valve 2 706 and open control valve 1 705. At this time, the water inside the water pipe 703 enters the drain pipe 704 and is discharged through the water mist nozzle 707 on the drain pipe 704, thereby achieving dust reduction effect while absorbing dust, further improving the dust removal effect.

[0044] Working principle and use process of the utility model: when using the dust removal device of the coal mine excavator, the mounting plate 1 is installed at the designated position of the coal mine excavator, the dust collector 2 is started first, and then the dust generated by the coal mine excavator when the coal mine excavator is excavating is sucked into the dust suction pipe 5, and discharged to the inside of the collection box 4 through the dust discharge pipe for collection, and falls into the inside of the collection box 618, at this time, the air is discharged through the position of the square cover 601, and the air dust is filtered through the filter screen plate 603, and then the electric telescopic rod 610 is started to drive the card seat 612 to move downward, and when the card seat 612 moves downward, when the limit block 613 on the card seat 612 is close to the connecting plate 607, when the roller 1 608 contacts the limit block 613, The roller 1 608 is made to roll along the inclined surface of the limit block 613, so that the friction between the limit block 613 and the connecting plate 607 can be reduced through the setting of the roller 1 608, and the smoothness of the movement of the limit block 613 is improved. While the limit block 613 and the roller 1 608 are squeezed, the spring 2 614 is compressed until the limit block 613 is completely moved into the inside of the holder 612. When the limit block 613 is released from squeezing, the spring 2 614 rebounds and drives the limit block 613 to extend, so that the two groups of limit blocks 613 are stuck under the connecting plate 607. Then the electric telescopic rod 610 is contracted, and the holder 612 and the limit block 613 are driven to move upward synchronously, and the connecting plate 607 is driven to move upward through the limit block 613. The two groups of pull rods 604 are driven upward by the connecting plate 607, and the filter screen plate 603 is driven upward by the pull rod 604. At this time, the filter screen plate 603 compresses the spring 1 606, and as the holder 612 moves upward, the bar frame 615 is driven upward. When the bar frame 615 contacts the extrusion plate 611, the extrusion plate 611 squeezes the bar frame 615 to move horizontally. Through the setting of the roller 2 616, the friction between the extrusion plate 611 and the bar frame 615 can be reduced, and the smoothness of the extrusion of the bar frame 615 by the extrusion plate 611 is improved. As the bar frame 615 moves horizontally, the limit block 613 is driven to move. As the limit block 613 moves, the limit lock of the connecting plate 607 is released. At this time, the spring 1 606 rebounds and drives the filter screen plate 603 to move downward, so that the filter screen plate 603 collides with the support frame 602, and the filter screen plate 603 vibrates, which can make the dust on the filter screen plate 603 fall off due to the vibration, especially for the dust that is tightly attached to the filter screen plate 603, the vibration cleaning effect is better, thereby improving the use effect of the device, and there is no need to regularly replace the bristles due to the use of the brush plate, which meets the actual use needs. When it is necessary to clean the dust collected in the collection box 618, the water in the water tank 701 is pumped out by the water pump 702, and discharged to the inside of the water pipe 703, and discharged through the spray joint (not shown in the figure), so as to soak the dust, thereby avoiding the dust from being cleaned.The dust is caused to fly again, resulting in a decrease in air quality and affecting the environment, thereby further improving the use effect of the device. By opening the lock buckle 617, the lock buckle 617 and the lock hook 619 are separated, thereby releasing the lock of the collection box 618, so that the collection box 618 can be pulled out and the dust can be cleaned, thereby improving the convenience of dust cleaning. Then, the control valve 2 706 is closed and the control valve 1 705 is opened. At this time, the water inside the water pipe 703 enters the drain pipe 704 and is discharged through the water mist nozzle 707 on the drain pipe 704, thereby achieving a dust reduction effect while sucking dust, further improving the dust removal effect.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dust removal device for a coal mine excavator, comprising a mounting plate (1), a mounting cover (3) fixed on the upper surface of the mounting plate (1), and a dust collector (2) mounted inside the mounting cover (3), wherein the output end of the dust collector (2) is fixedly connected with a dust exhaust pipe, and the dust exhaust pipe passes through the inside of the mounting cover (3), extends to the outside of the mounting cover (3), and is connected and fixed to a collection box (4) outside the mounting cover (3), the collection box (4) is fixedly connected to the mounting plate (1), a dust collection pipe (5) is fixed at the input end of the dust collector (2), and a dust collection cover is fixed at one end of the dust collection pipe (5), characterized in that: A cleaning assembly (6) is installed on the collection box (4), and the cleaning assembly (6) comprises a square cover (601) fixed on the upper surface of the collection box (4), a support frame (602) fixed inside the square cover (601), and a filter screen (603) arranged above the support frame (602), a fixing frame (605) is arranged above the filter screen (603), and symmetrically arranged pull rods (604) are fixed on the upper surface of the filter screen (603), a spring (606) is wound around the surface of the pull rod (604), and a connecting plate (607) is fixed between two groups of the pull rods (604). The collection box (4 ) is fixed with a U-shaped frame (609) on one side of the upper surface close to the square cover (601), an electric telescopic rod (610) is fixed on the surface of the U-shaped frame (609), a holder (612) is fixed on the output end of the electric telescopic rod (610), the inside of the holder (612) is slidably connected with symmetrically arranged limit blocks (613), a spring (614) is fixed between the limit blocks (613) and the holder (612), a strip frame (615) is fixed on the surface of the limit blocks (613), and symmetrically arranged extrusion plates (611) are fixed on the surface of the U-shaped frame (609), and the extrusion plates (611) and the strip frame (615) correspond to each other.

2. The dust removal device for coal mine excavator according to claim 1 is characterized in that: The fixed frame (605) and the square cover (601) are fixedly connected, and the two ends of the spring 1 (606) are respectively fixedly connected to the fixed frame (605) and the filter screen (603). The surface of the fixed frame (605) is provided with a sliding hole that is compatible with the pulling rod (604), and the pulling rod (604) and the fixed frame (605) are slidably connected through the sliding hole. The surface of the holder (612) is provided with a limiting groove that is compatible with the limiting block (613), and the limiting block (613) and the holder (612) are slidably connected through the limiting groove. The surface of the holder (612) is provided with a moving hole that is compatible with the strip frame (615), and the strip frame (615) and the holder (612) are slidably connected through the moving hole.

3. The dust removal device for coal mine excavator according to claim 2 is characterized in that: The surface of the connecting plate (607) is provided with symmetrically arranged mounting grooves, and a roller one (608) is arranged in the mounting groove. The roller one (608) is rotatably connected to the connecting plate (607) via a rotating shaft, and the interior of the bar frame (615) is rotatably connected to a roller two (616) via a rotating shaft.

4. The dust removal device for coal mine excavator according to claim 3 is characterized in that: A collection box (618) is arranged inside the collection box (4), symmetrically arranged lock buckles (617) are fixed to the surface of the collection box (4), and a locking hook (619) is fixed to the side of the surface of the collection box (618) close to the lock buckle (617).

5. The dust removal device for coal mine excavator according to claim 4 is characterized in that: A dustproof component (7) is installed on the collection box (4), and the dustproof component (7) comprises a water pump (702) fixed on the upper surface of the collection box (4), a water tank (701) fixed on the upper surface of the installation cover (3), and a water pipe (703) fixed on the output end of the water pump (702); a connecting pipe is fixed on the input end of the water pump (702), and the connecting pipe and the water tank (701) are fixedly connected; one end of the water pipe (703) passes through the interior of the collection box (4) and is fixedly connected to a water mist joint inside the collection box (4).

6. The dust removal device for coal mine excavator according to claim 5, characterized in that: A drainage pipe (704) is fixed on the surface of the water supply pipe (703), a water mist nozzle (707) is fixed on one end of the drainage pipe (704), the surface of the drainage pipe (704) is fixedly connected to the water tank (701) via a mounting block, a control valve 1 (705) is installed inside the drainage pipe (704), and a control valve 2 (706) is installed inside the water supply pipe (703).

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