Dust removal device for open pit coal mine exploitation

Abstract

The invention discloses a dust removal device for open pit coal mining, the dust removal device comprises a gun fog machine body and a driving assembly, the driving assembly comprises a motor, a rotating block and a movable part, an output shaft of the motor is fixedly connected with one end of the rotating block, and the other end of the rotating block is movably connected with the movable part; the motor drives one end of the rotating block to rotate around the first direction so as to drive the other end of the rotating block to rotate around the first direction, so that the movable part can move in the up-down direction, the movable part is connected with the gun fog machine body, the gun fog machine body can move in the up-down direction, and the up-down direction is orthogonal to the first direction. The dust removal device for open pit coal mine exploitation is high in dust removal efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal equipment, and in particular to a dust removal device used in open-pit coal mine mining. Background Art

[0002] In the process of coal mining, the generation of dust is inevitable. For coal miners, being in a dusty environment for a long time will greatly increase the chance of contracting pneumoconiosis. Moreover, when the dust concentration in the air reaches a certain level, explosion accidents are prone to occur. Therefore, dust removal is an important part of mine construction work during coal mining.

[0003] At present, mines often use fog cannons for dust removal. However, the height of the fog cannon is fixed when in use, and the height cannot be adjusted according to the construction requirements on site, which affects the dust removal range of the fog cannon and the dust removal efficiency is low. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a dust removal device for open-pit coal mining.

[0005] The dust removal device used in open-pit coal mining according to the embodiment of the present invention comprises:

[0006] The main body of the cannon fog machine;

[0007] A driving assembly, the driving assembly includes a motor, a rotating block and a movable part, the output shaft of the motor is fixedly connected to one end of the rotating block, the other end of the rotating block is movably connected to the movable part, the motor drives one end of the rotating block to rotate around a first direction to drive the other end of the rotating block to rotate around the first direction, so that the movable part can move in an up and down direction, the movable part is connected to the main body of the fog cannon, so that the main body of the fog cannon cannon can move in the up and down directions, and the up and down directions are orthogonal to the first direction.

[0008] In the dust removal device used in open-pit coal mine mining in the embodiment of the present invention, a motor drives a rotating block to rotate around a first direction, and the rotating block drives a movable part to rotate around the first direction to realize the movement of the movable part in the up and down directions, thereby causing the cannon fog machine body to move in the up and down directions, thereby improving the dust removal range and dust removal efficiency of the cannon fog machine body.

[0009] In some embodiments, the dust removal device used in open-pit coal mine mining also includes a fixed block, the fixed block has a through hole and a groove, the through hole extends downward from the top surface of the fixed block, the groove is recessed from the side of the fixed block toward the interior of the fixed block and is connected to the through hole, the movable part includes a movable rod and a connecting rod, the movable rod is movably arranged in the through hole, the upper end of the movable rod extends out of the top surface of the fixed block and is connected to the cannon fog machine body, one end of the connecting rod is connected to the lower end of the movable rod, and the other end of the connecting rod extends out of the side of the fixed block from the groove and is movably connected to the other end of the rotating block.

[0010] In some embodiments, the fixed block also has a mounting groove and an extension hole, the mounting groove is arranged inside the fixed block, one end of the extension hole is connected to the mounting groove, and the other end of the extension hole extends to the side of the fixed block, the extension hole and the groove are located on the same side of the fixed block, the motor is arranged in the mounting groove, and a rotating rod is provided in the extension hole, one end of the rotating rod is connected to the output shaft of the motor, and the other end of the rotating rod extends from the other end of the extension hole and is connected to one end of the rotating block.

[0011] In some embodiments, the dust removal device used in open-pit coal mine mining further includes a bracket, the bracket is arranged at the upper end of the movable rod, the bracket has a mounting position, and the cannon fog machine body is arranged in the mounting position.

[0012] The other end of the rotating block is provided with a movable hole, the movable hole is in a strip shape, and the other end of the connecting rod is movably installed in the movable hole.

[0013] In some embodiments, the dust removal device used in the open-pit coal mine mining also includes a baffle, which is arranged at the fog outlet of the cannon fog machine body, and the baffle is rotatable relative to the cannon fog machine body to open or close the fog outlet.

[0014] In some embodiments, the dust removal device used in open-pit coal mine mining also includes a rotating part, which is arranged on the outer peripheral wall of the mist outlet. The rotating part includes a mounting block and a rotating rod. The mounting block has a rotating hole, and the inner peripheral surface of the rotating hole has a convex groove protruding outward, and the convex groove is arranged around the circumference of the rotating hole. One end of the rotating rod is arranged in the rotating hole, and the other end of the rotating rod extends out of the rotating hole and is connected to the baffle. The outer peripheral surface of one end of the rotating rod has a protrusion, and the protrusion is arranged around the circumference of the rotating rod. The protrusion is arranged in the convex groove, and the rotating rod is rotatable relative to the mounting block.

[0015] In some embodiments, the dust removal device used in the open-pit coal mine also includes a limit member, which is arranged on the side of the baffle away from the cannon fog machine body, and the end face of the fog outlet has a slot, and part of the limit member can pass through the baffle and be inserted into the slot.

[0016] In some embodiments, the limiting member includes a limiting rod, a sliding block, an elastic member and a mounting shell. The mounting shell is arranged on the side of the baffle away from the cannon fog machine body. The limiting rod is movably arranged in the mounting shell. One end of the limiting rod passes through the baffle, and the other end of the limiting rod extends out of the top surface of the mounting shell. The sliding block is arranged in the mounting shell and is connected to the limiting rod. The limiting rod can drive the sliding block to move in the mounting shell. The elastic member is arranged in the mounting shell, one end of the elastic member is connected to the sliding block, and the other end of the elastic member is connected to the inner side of the top surface of the mounting shell.

[0017] In some embodiments, the limiting member and the rotating member are arranged opposite to each other.

[0018] In some embodiments, the dust removal device used in the open-pit coal mine further comprises:

[0019] A base, wherein the fixing block is arranged on the top surface of the base;

[0020] A water tank, which is arranged on the top surface of the base and is connected to the main body of the cannon fog machine to supply water to the main body of the cannon fog machine;

[0021] Wheels are arranged on the bottom surface of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a dust removal device used in open-pit coal mining according to an embodiment of the present invention.

[0023] Figure 2 It is a vertical cross-sectional view of a dust removal device used in open-pit coal mine mining according to an embodiment of the present invention.

[0024] Figure 3 It is a transverse cross-sectional view of a dust removal device used in open-pit coal mining according to an embodiment of the present invention.

[0025] Figure 4 It is a vertical cross-sectional view of a dust removal device used in open-pit coal mine mining according to an embodiment of the present invention.

[0026] Figure 5 yes Figure 2 Enlarged schematic diagram of part A.

[0027] Figure 6 yes Figure 2 Schematic diagram of the enlarged portion B.

[0028] Figure numerals: 1, cannon fog machine body; 11, fog outlet; 12, slot; 2, drive assembly; 21, motor; 22, rotating block; 221, movable hole; 23, movable part; 231, movable rod; 232, connecting rod; 24, rotating rod; 3, fixed block; 31, perforation; 32, groove; 33, mounting slot; 34, extension hole; 4, bracket; 41, connecting plate; 42, side plate; 43, mounting position; 5. baffle; 6. rotating member; 61. mounting block; 611. rotating hole; 612. convex groove; 62. rotating rod; 621. convex block; 7. limiting member; 71. limiting rod; 72. sliding block; 73. elastic member; 74. mounting shell; 75. operating block; 81. base; 82. water tank; 821. water inlet; 822. water inlet pipe; 83. wheel; 84. water pump; 85. water pump; 86. bellows. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] like Figure 1-6 As shown, the dust removal device used in the open-pit coal mine mining of the embodiment of the present invention includes a cannon fog machine body 1 and a driving assembly 2. The driving assembly 2 includes a motor 21, a rotating block 22 and a movable part 23. The rotating block 22 is in the shape of an elongated strip. The output shaft of the motor 21 is fixedly connected to one end of the rotating block 22, and the other end of the rotating block 22 is movably connected to the movable part 23. When the motor 21 drives one end of the rotating block 22 to rotate around a first direction, one end of the rotating block 22 can drive the other end of the rotating block 22 to rotate around the first direction, so that the movable part 23 can move in the up and down direction. The upper end of the movable part 23 is connected to the cannon fog machine body 1, so as to realize the movement of the cannon fog machine body 1 in the up and down directions, and the up and down directions are orthogonal to the first direction.

[0031] In the dust removal device used in open-pit coal mine development in the embodiment of the present invention, the motor 21 drives the rotating block 22 to rotate around the first direction, and the rotating block 22 drives the movable part 23 to rotate around the first direction to realize the movement of the movable part 23 in the up and down directions, so that the fog machine body 1 moves in the up and down directions, thereby improving the dust removal range and dust removal efficiency of the fog machine body 1, allowing the fog machine body 1 to adjust its height according to the construction requirements on site to remove dust from the coal ash on site, thereby improving the applicability of the fog machine body 1.

[0032] In some embodiments, the dust removal device used in open-pit coal mining further includes a fixed block 3. The fixed block 3 has a through hole 31 and a groove 32, the through hole 31 extends downward from the top surface of the fixed block 3, and the groove 32 is recessed from the side of the fixed block 3 toward the inside of the fixed block 3 and communicates with the through hole 31. Specifically, the cross section of the through hole 31 is circular, the cross section of the groove 32 is rectangular, and the diameter of the through hole 31 is larger than the size of the groove 32 in the width direction.

[0033] The movable member 23 includes a movable rod 231 and a connecting rod 232. The movable rod 231 is movably arranged in the through hole 31, and the outer peripheral contour of the movable rod 231 is adapted to the inner peripheral contour of the through hole 31. The upper end of the movable rod 231 extends out of the top surface of the fixed block 3 and is connected to the fog machine body 1. One end of the connecting rod 232 is connected to the lower end of the movable rod 231. The other end of the connecting rod 232 extends out of the side of the fixed block 3 from the groove 32 and is movably connected to the other end of the rotating block 22. Specifically, the other end of the rotating block 22 rotates around the first direction to drive the connecting rod 232 to move in the extension direction of the groove 32, so that the fog machine body 1 can move in the up and down directions.

[0034] In some embodiments, the fixed block 3 further has a mounting groove 33 and an extension hole 34. The mounting groove 33 is arranged inside the fixed block 3. One end of the extension hole 34 is connected to the mounting groove 33. The other end of the extension hole 34 extends to the side of the fixed block 3. The extension hole 34 and the groove 32 are located on the same side of the fixed block 3. The motor 21 is arranged in the mounting groove 33 and is adapted to the mounting groove 33, so as to ensure that the motor 21 is firmly installed in the mounting groove 33. A rotating rod 24 is arranged in the extension hole 34. One end of the rotating rod 24 is connected to the output shaft of the motor 21. The other end of the rotating rod 24 extends from the other end of the extension hole 34 and is connected to one end of the rotating block 22. Specifically, the motor 21 drives the rotating block 22 to rotate around the first direction through the rotating rod 24. The operation method is simple and easy to implement.

[0035] In some embodiments, the dust removal device used in open-pit coal mines further includes a bracket 4, which is disposed at the upper end of the movable rod 231, and the bracket 4 has a mounting position 43, and the cannon fog machine body 1 is disposed in the mounting position 43. Specifically, the bracket 4 includes a connecting plate 41 and side plates 42 respectively disposed at both ends of the connecting plate 41, the two side plates 42 are located on the same side of the connecting plate 41 and are arranged oppositely, and a mounting position 43 is formed between the two side plates 42 and the connecting member, the cannon fog machine body 1 is disposed in the mounting position 43 and is connected to the side plates 42, and the cannon fog machine body 1 is rotatable relative to the side plates 42 to achieve spray dust removal at different angles at the same height position.

[0036] The other end of the rotating block 22 has a movable hole 221, which is in a long strip shape, and the other end of the connecting rod 232 is movably installed in the movable hole 221. Specifically, when the motor 21 rotates the rotating block 22 around the first direction through the rotating rod 24, the other end of the connecting rod 232 moves in the movable hole 221 along the extension direction of the movable hole 221 to realize the rotation of the connecting rod 232 in the up and down direction.

[0037] In some embodiments, the dust removal device used in open-pit coal mine mining further includes a baffle 5, which is disposed at the fog outlet 11 of the cannon fog machine body 1, and the baffle 5 can rotate relative to the cannon fog machine body 1 to open or close the fog outlet 11. Specifically, the cross-sectional area of ​​the baffle 5 is larger than the cross-sectional area of ​​the fog outlet 11. When the cannon fog machine body 1 does not emit fog, the baffle 5 can completely block the fog outlet 11 to prevent external dust from entering the interior of the cannon fog machine body 1, thereby ensuring the normal operation of the cannon fog machine body 1.

[0038] In some embodiments, the dust removal device used in open-pit coal mines also includes a rotating member 6 , which is disposed on the outer peripheral wall of the fog outlet 11 , and the baffle 5 is rotated relative to the fog machine body 1 through the rotating member 6 .

[0039] The rotating member 6 includes a mounting block 61 and a rotating rod 62. The mounting block 61 has a rotating hole 611. The rotating hole 611 penetrates the mounting block 61 along the thickness direction of the mounting block 61 in the first direction. The inner circumference of the rotating hole 611 has a convex groove 612 protruding outward. The convex groove 612 is arranged around the circumference of the rotating hole 611. One end of the rotating rod 62 is arranged in the rotating hole 611 and is rotatable relative to the mounting block 61. The other end of the rotating rod 62 extends out of the rotating hole 611 and is connected to the baffle 5, so that the baffle 5 can rotate relative to the mounting block 61. The outer circumference of one end of the rotating rod 62 has a convex block 621. The convex block 621 is arranged around the circumference of the rotating rod 62. The convex block 621 is arranged in the convex groove 612 and is adapted to the convex groove 612. The convex block 621 plays a role of limiting, ensuring that one end of the rotating rod 62 is not easily disengaged from the rotating hole 611.

[0040] In some embodiments, the dust removal device used in open-pit coal mines also includes a limit member 7, which is arranged on the side of the baffle 5 away from the cannon fog machine body 1. The end face of the fog outlet 11 has a slot 12, and part of the limit member 7 can pass through the baffle 5 and be inserted into the slot 12, so that the baffle 5 can remain stable when closing the fog outlet 11.

[0041] In some embodiments, the limiting member 7 includes a limiting rod 71, a slider 72, an elastic member 73 and a mounting shell 74. The mounting shell 74 is arranged on the side of the baffle 5 away from the cannon fog machine body 1, and the limiting rod 71 is movably arranged in the mounting shell 74. One end of the limiting rod 71 passes through the baffle 5 and is suitable for cooperating with the slot 12, and the other end of the limiting rod 71 extends out of the top surface of the mounting shell 74. An operating block 75 is arranged at the other end of the limiting rod 71, and the limiting rod 71 is conveniently operated by the operating block 75.

[0042] The slider 72 is arranged in the mounting shell 74 and connected to the limiting rod 71. One side of the slider 72 contacts the side of the baffle 5 away from the cannon fog machine body 1. The limiting rod 71 can drive the slider 72 to move in the mounting shell 74. The elastic member 73 is arranged in the mounting shell 74. One end of the elastic member 73 is fixedly connected to the side of the slider 72 away from the baffle 5, and the other end of the elastic member 73 is fixedly connected to the inner side of the top surface of the mounting shell 74. Specifically, the elastic member 73 is a spring, the elastic member 73 is in a compressed state, and the elastic member 73 has an elastic force toward the baffle 5, so that the elastic member 73 can make one end of the limiting rod 71 fit more closely with the inner wall surface of the slot 12.

[0043] In some embodiments, the limiting member 7 and the rotating member 6 are arranged opposite to each other.

[0044] In some embodiments, the dust removal device used in open-pit coal mining further includes a base 81, a water tank 82 and wheels 83. The fixing block 3 is disposed on the top surface of the base 81. The water tank 82 is disposed on the top surface of the base 81 and is connected to the cannon fog machine body 1 to supply water to the cannon fog machine body 1. The wheels 83 are disposed on the bottom surface of the base 81 to facilitate the movement of the dust removal device.

[0045] Specifically, the top surface of the water tank 82 has a water inlet 821, and a water inlet pipe 822 is provided at the water inlet 821, through which water can be injected into the water tank 82. A water pumping pipe 84 is provided in the water tank 82, the lower end of which is located at the bottom of the water tank 82, and the upper end of which extends upward to the top surface of the water tank 82. A water pump 85 and a bellows 86 are provided on the top surface of the water tank 82, one end of which is connected to the cannon fog machine body 1, and the water pump 85 is connected to the other end of the bellows 86 and the upper end of the water pumping pipe 84, so as to pump the water in the water tank 82 into the cannon fog machine body 1, which is convenient for operation and saves time and effort.

[0046] The working principle and use process of the present invention:

[0047] First, the operator starts the motor 21, and the motor 21 drives the rotating block 22 to rotate through the rotating rod 24. The rotating block 22 drives the connecting rod 232 to move up and down. The connecting rod 232 drives the fog cannon body to move up and down by driving the movable rod 231 to move up and down, until it moves to the appropriate position and stops. Then the water pump 85 is started, and the water source in the water tank 82 is extracted through the pumping pipe 84, and it is introduced into the interior of the fog cannon body through the bellows 86. The fog cannon body sprays it out in atomization to remove dust from the coal mine.

[0048] When the fog cannon body is not in use, the operator can rotate the baffle 5 with the rotating rod 62 as the axis until the baffle 5 can block the fog outlet 11 of the fog cannon body, and then pull the limit rod 71 to make the moving block move along the inner wall of the mounting shell 74 under the push of the elastic member 73, so that one end of the limit rod 71 is inserted into the slot 12 to fix the baffle 5 to prevent external dust from entering the fog cannon body.

[0049] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0053] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0054] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A dust removal device for open-pit coal mining, characterized in that: include: The fog machine body (1); A driving assembly (2), wherein the driving assembly (2) comprises a motor (21), a rotating block (22) and a movable part (23), wherein the output shaft of the motor (21) is fixedly connected to one end of the rotating block (22), and the other end of the rotating block (22) is movably connected to the movable part (23), wherein the motor (21) drives one end of the rotating block (22) to rotate around a first direction and can drive the other end of the rotating block (22) to rotate around the first direction, so that the movable part (23) can move in an up-and-down direction, and the movable part (23) is connected to the fog machine body (1), so that the fog machine body (1) can move in the up-and-down direction, and the up-and-down direction is orthogonal to the first direction.

2. The dust removal device for open-pit coal mining according to claim 1 is characterized in that: It also includes a fixed block (3), the fixed block (3) has a through hole (31) and a groove (32), the through hole (31) extends downward from the top surface of the fixed block (3), the groove (32) is recessed from the side of the fixed block (3) toward the inside of the fixed block (3) and is connected to the through hole (31), the movable part (23) includes a movable rod (231) and a connecting rod (232), the movable rod (231) is movably arranged in the through hole (31), the upper end of the movable rod (231) extends out of the top surface of the fixed block (3) and is connected to the cannon fog machine body (1), one end of the connecting rod (232) is connected to the lower end of the movable rod (231), and the other end of the connecting rod (232) extends out of the side of the fixed block (3) from the groove (32) and is movably connected to the other end of the rotating block (22).

3. The dust removal device for open-pit coal mining according to claim 2, characterized in that: The fixed block (3) further comprises a mounting groove (33) and an extension hole (34); the mounting groove (33) is arranged inside the fixed block (3); one end of the extension hole (34) is communicated with the mounting groove (33); the other end of the extension hole (34) extends to the side of the fixed block (3); the extension hole (34) and the groove (32) are located on the same side of the fixed block (3); the motor (21) is arranged in the mounting groove (33); a rotating rod (24) is arranged in the extension hole (34); one end of the rotating rod (24) is connected to the output shaft of the motor (21); the other end of the rotating rod (24) extends from the other end of the extension hole (34) and is connected to one end of the rotating block (22).

4. The dust removal device for open-pit coal mining according to claim 2, characterized in that: It also includes a bracket (4), the bracket (4) is arranged at the upper end of the movable rod (231), the bracket (4) has a mounting position (43), and the cannon fog machine body (1) is arranged in the mounting position (43). The other end of the rotating block (22) has a movable hole (221), the movable hole (221) is in the shape of an elongated strip, and the other end of the connecting rod (232) is movably mounted in the movable hole (221).

5. The dust removal device for open-pit coal mining according to claim 1, characterized in that: It also includes a baffle (5), which is arranged at the mist outlet (11) of the mist machine body (1), and the baffle (5) is rotatable relative to the mist machine body (1) to open or close the mist outlet (11).

6. The dust removal device for open-pit coal mining according to claim 5, characterized in that: The invention also comprises a rotating member (6), wherein the rotating member (6) is arranged on the outer peripheral wall of the mist outlet (11), and the rotating member (6) comprises a mounting block (61) and a rotating rod (62), wherein the mounting block (61) has a rotating hole (611), and the inner peripheral surface of the rotating hole (611) has a convex groove (612) protruding outward, and the convex groove (612) is arranged around the circumference of the rotating hole (611), and one end of the rotating rod (62) is arranged in the rotating hole (611), and the other end of the rotating rod (62) protrudes out of the rotating hole (611) and is connected to the baffle (5), and the outer peripheral surface of one end of the rotating rod (62) has a convex block (621), and the convex block (621) is arranged around the circumference of the rotating rod (62), and the convex block (621) is arranged in the convex groove (612), and the rotating rod (62) is rotatable relative to the mounting block (61).

7. The dust removal device for open-pit coal mining according to claim 5, characterized in that: It also includes a limiting member (7), which is arranged on the side of the baffle plate (5) away from the cannon fog machine body (1), and the end face of the fog outlet (11) has a slot (12), and a part of the limiting member (7) can pass through the baffle plate (5) and be inserted into the slot (12).

8. The dust removal device for open-pit coal mining according to claim 7, characterized in that: The limiting member (7) includes a limiting rod (71), a slider (72), an elastic member (73) and a mounting shell (74). The mounting shell (74) is arranged on the side of the baffle (5) away from the cannon fog machine body (1). The limiting rod (71) is movably arranged in the mounting shell (74). One end of the limiting rod (71) passes through the baffle (5), and the other end of the limiting rod (71) extends out of the top surface of the mounting shell (74). The slider (72) is arranged in the mounting shell (74) and is connected to the limiting rod (71). The limiting rod (71) can drive the slider (72) to move in the mounting shell (74). The elastic member (73) is arranged in the mounting shell (74), one end of the elastic member (73) is connected to the slider (72), and the other end of the elastic member (73) is connected to the inner side of the top surface of the mounting shell (74).

9. The dust removal device for open-pit coal mining according to claim 7, characterized in that: The limiting member (7) and the rotating member (6) are arranged relative to each other.

10. The dust removal device for open-pit coal mining according to claim 2, characterized in that: Also includes: A base (81), wherein the fixing block (3) is arranged on the top surface of the base (81); A water tank (82), the water tank (82) being arranged on the top surface of the base (81) and being in communication with the fog machine body (1) so as to supply water to the fog machine body (1); A wheel (83), wherein the wheel (83) is arranged on the bottom surface of the base (81).

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