Dust removal device of coal picker

Abstract

The utility model provides a dust removal device of a coal picker, which comprises a movable chassis, a lifting bracket arranged above the movable chassis, a top frame arranged above the lifting bracket, and a lifting adjusting structure arranged at the top of the movable chassis and used for driving the lifting bracket to move up and down, an angle adjusting mechanism used for adjusting the angle of the top frame is arranged at the top of the lifting support, a dust collection cover is fixedly arranged on one side in the top frame, and a dust removal pipe is arranged on the dust collection cover. During dust removal, the dust removal device of the coal separator can be moved to one side of the coal separator through the movable chassis, then the height of the dust collection cover is adjusted through the lifting adjusting mechanism, and the angle of the dust collection cover is adjusted through the angle adjusting mechanism, so that the bottom of the dust collection cover is close to the top of the coal separator; the induced draft fan and the cloth bag dust collector are connected to the dust removal pipe, and dust generated in the coal dressing process is introduced into the cloth bag dust collector through the induced draft fan to be collected and treated in a unified mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal preparation machines, and particularly relates to a dust removal device for a coal preparation machine. Background Art

[0002] The dry coal preparation machine can screen the coal. During the dry coal preparation process, the upper layer of coal screened falls directly from the discharge port of the screening equipment to the transfer trolley.

[0003] In the prior art, the Chinese utility model patent document with authorization publication number CN221017309U discloses a fluidized bed dry coal separator, which screens the coal by driving the screen plate to vibrate through a vibrating motor. However, due to the continuous vibration during the screening process, a large amount of dust is generated. This dust not only pollutes the on-site environment, but also affects the health of on-site operators. Since the screening hopper vibrates continuously during the screening process, directly installing a dust cover on its top not only affects its vibration frequency, but also affects its stability.

[0004] Therefore, it is necessary to design a dust removal device for a coal preparation machine that can absorb and process the dust during the screening process without affecting the frequency and stability of the screen bucket to solve the current technical problems. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the utility model provides a dust removal device for a coal preparation machine which can absorb and process dust in the screening process without affecting the frequency and stability of the screening bucket.

[0006] The technical solution of the present utility model is as follows: a dust removal device of a coal preparation machine comprises a mobile chassis, a lifting bracket is provided above the mobile chassis, a top frame is provided above the lifting bracket, a lifting adjustment structure for driving the lifting bracket to move up and down is provided on the top of the mobile chassis, an angle adjustment mechanism for adjusting the angle of the top frame is provided on the top of the lifting bracket, a dust collecting hood is fixedly provided on one side of the interior of the top frame, and a dust collection pipe is provided on the dust collecting hood.

[0007] The angle adjustment mechanism has two vertically fixed poles at one end of the top of the lifting bracket. The top frame is hinged to the top of the poles. An angle hydraulic cylinder is hinged to the other end of the top of the lifting bracket. The end of the angle hydraulic cylinder facing away from the lifting bracket is hinged to the top frame. A hydraulic pump station for controlling the action of the angle hydraulic cylinder is provided on the mobile chassis.

[0008] Two sliding tubes are symmetrically hinged at one end of the top of the lifting bracket close to the angle hydraulic cylinder. A guide rod is slidingly provided inside the sliding tube, and the guide rod is hinged to the bottom of the top frame.

[0009] The lifting bracket is vertically slidably connected to the top of the mobile chassis, a frame plate is fixedly provided inside the lifting bracket, and a lifting hydraulic cylinder and a hydraulic pump station for controlling the movement of the lifting hydraulic cylinder are provided between the frame plate and the mobile chassis.

[0010] Four sliding rods are evenly arranged on the bottom of the lifting bracket, a supporting tube is vertically fixedly arranged on the top of the mobile chassis, and the sliding rods are slidably arranged inside the supporting tube.

[0011] A front bracket is symmetrically arranged at one end of the mobile chassis, and a rear support rod is symmetrically arranged at the other end of the mobile chassis. Bottom support mechanisms are both arranged on the front bracket and the rear support rod.

[0012] The bottom support mechanism is fixedly arranged on an internal threaded tube inside the front bracket and the rear support rod. The internal thread of the internal threaded tube is equipped with a support screw. The bottom end of the support screw is rotatably provided with a foot plate. The top end of the support screw is provided with a handle, and the bottom of the foot plate is provided with a pad.

[0013] The bottom of the mobile chassis is evenly provided with moving wheels.

[0014] Beneficial effects of the utility model:

[0015] (1) When removing dust, the dust removal device of the coal preparation machine can be moved to the side of the coal preparation machine by moving the chassis, and then the height of the dust collection hood is adjusted by the lifting adjustment mechanism, and then the angle of the dust collection hood is adjusted by the angle adjustment mechanism, so that the bottom of the dust collection hood is close to the top of the coal preparation machine. The dust removal pipe is connected to the induced draft fan and the bag dust collector, and the dust generated during the coal preparation process is introduced into the bag dust collector by the induced draft fan for collection and unified treatment;

[0016] (2) The dust removal device of the coal preparation machine is designed to be separated from the coal preparation machine, which does not affect the frequency and stability of the coal preparation machine screening bucket;

[0017] (3) The height of the dust hood is adjusted by the lifting adjustment mechanism, and the angle of the dust hood is adjusted by the angle adjustment mechanism, so that the dust removal device of the coal preparation machine can be adapted to the dust removal of coal preparation machines of different heights and inclination angles, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Fig. 1 This is a schematic diagram of the use status of the dust removal device of the coal preparation machine in the utility model.

[0019] Fig. 2 It is a structural schematic diagram of the dust removal device of the coal preparation machine in the utility model.

[0020] Fig. 3for Fig. 2 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0021] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and does not constitute any limitation on the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully convey the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0022] The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are simply used to distinguish different parts. Terms such as "include" or "comprising" mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] like Figs. 1 to 3 As shown, the dust removal device of the coal preparation machine includes a mobile chassis 1, a lifting bracket 3 is provided above the mobile chassis 1, a top frame 4 is provided above the lifting bracket 3, a lifting adjustment structure 2 for driving the lifting bracket 3 to move up and down is provided on the top of the mobile chassis 1, an angle adjustment mechanism 7 for adjusting the angle of the top frame 4 is provided on the top of the lifting bracket 3, a dust collecting hood 5 is fixedly provided on one side of the interior of the top frame 4, and a dust collecting pipe 6 is provided on the dust collecting hood 5; in this embodiment, when removing dust, the dust removal device of the coal preparation machine can be moved to the side of the coal preparation machine through the mobile chassis 1, and then the height of the dust collecting hood 5 is adjusted by the lifting adjustment mechanism 2, and then the dust collecting hood 5 is adjusted by the lifting adjustment mechanism 2. The angle adjustment mechanism 7 adjusts the angle of the dust hood 5 so that the bottom of the dust hood 5 is close to the top of the coal preparation machine. The dust removal pipe 6 is connected to the induced draft fan and the bag dust collector. The dust generated during the coal preparation process is introduced into the bag dust collector through the induced draft fan for collection and unified treatment. The dust removal device 100 of the coal preparation machine is designed to be split from the coal preparation machine 200, which does not affect the frequency and stability of the screening bucket of the coal preparation machine 200. The height of the dust hood 5 is adjusted by the lifting adjustment mechanism 2, and the angle adjustment mechanism 7 adjusts the angle of the dust hood 5 so that the dust removal device of this coal preparation machine can be adapted to the dust removal of coal preparation machines of different heights and inclination angles, and has a wide range of applications.

[0024] In some embodiments, the angle adjustment mechanism 7 has two vertical poles 74 fixed vertically at one end of the top of the lifting bracket 3. The top frame 4 is hinged to the top of the pole 74. The other end of the top of the lifting bracket 3 is hinged with an angle hydraulic cylinder 71. The end of the angle hydraulic cylinder 71 facing away from the lifting bracket 3 is hinged to the top frame 4. A hydraulic pump station 9 for controlling the action of the angle hydraulic cylinder 71 is provided on the mobile chassis 1. The piston rod of the angle hydraulic cylinder 71 is controlled by the hydraulic pump station 9 to extend and retract, which can drive one end of the top frame 4 to move up and down, and adjust the angle of the top frame 4. The top frame 4 drives the dust collecting hood 5 to adjust the angle synchronously to match the inclination angle of the coal preparation machine screening bucket.

[0025] In some embodiments, in order to improve the stability of the top frame 4, two sliding tubes 72 are symmetrically hinged at one end of the top of the lifting bracket 3 close to the angle hydraulic cylinder 71. A guide rod 73 is provided for sliding inside the sliding tube 72. The guide rod 73 is hinged to the bottom of the top frame 4. The end of the top frame 4 close to the angle hydraulic cylinder 71 is supported by the guide rod 73 and the sliding tube 72, thereby improving the stability of the top frame 4 and being able to extend and retract with the angle adjustment of the top frame 4.

[0026] In some embodiments, the lifting bracket 3 is vertically slidably connected to the top of the mobile chassis 1, and a frame plate 32 is fixedly provided inside the lifting bracket 3. A lifting hydraulic cylinder 22 and a hydraulic pump station 9 for controlling the action of the lifting hydraulic cylinder 22 are provided between the frame plate 32 and the mobile chassis 1. The hydraulic pump station 9 controls the extension and retraction of the piston rod of the lifting hydraulic cylinder 22, which can drive the lifting bracket 3 to move up and down, and adjust the height of the top frame 4 and the dust collecting hood 5 to adapt to coal preparation machines of different heights.

[0027] In some embodiments, four sliding rods 31 are evenly arranged at the bottom of the lifting bracket 3, and the sliding rods 31 are vertically welded and fixed to the bottom of the lifting bracket 3. A support tube 21 is vertically fixed on the top of the mobile chassis 1, and the sliding rods 31 are slidably arranged inside the support tube 21. The lifting bracket 3 cooperates with the support tube 21 through the sliding rods 31 to realize its sliding connection in the vertical direction above the mobile chassis 1.

[0028] In some embodiments, a front bracket 12 is symmetrically provided at one end of the mobile chassis 1, and a rear support rod 13 is symmetrically provided at the other end of the mobile chassis 1. A bottom support mechanism 8 is provided on both the front bracket 12 and the rear support rod 13. The top support mechanism 8 can contact and support the ground during dust removal to ensure the stability of the mobile chassis 1.

[0029] In some embodiments, the bottom support mechanism 8 is fixedly arranged on an internal threaded tube 85 inside the front bracket 12 and the rear support rod 13. The internal thread of the internal threaded tube 85 is equipped with a support screw 81. The bottom end of the support screw 81 is rotatably provided with a foot plate 82. The top end of the support screw 81 is provided with a handle 84. The bottom of the foot plate 82 is provided with a pad 83. By rotating the support screw 81 with the handle 84, the foot plate 82 can be driven to move up and down, so that the pad 83 can be in contact with or separated from the ground. When in contact with the ground, it can provide stable support for the mobile chassis 1.

[0030] In some embodiments, moving wheels 11 are evenly arranged on the bottom of the moving chassis 1 .

[0031] Thus far, various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details well known in the art have not been described. Based on the above description, those skilled in the art will fully understand how to implement the technical solutions disclosed herein.

[0032] The above-described embodiments represent only some of the embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present utility model, and these modifications and improvements fall within the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model patent shall be based on the appended claims.

Claims

1. A dust removal device for a coal preparation machine, characterized in that: It includes a mobile chassis, a lifting bracket is provided above the mobile chassis, a top frame is provided above the lifting bracket, a lifting adjustment structure for driving the lifting bracket to move up and down is provided on the top of the mobile chassis, an angle adjustment mechanism for adjusting the angle of the top frame is provided on the top of the lifting bracket, a dust collecting hood is fixedly provided on one side of the interior of the top frame, and a dust removal pipe is provided on the dust collecting hood.

2. The dust removal device of the coal preparation machine according to claim 1, characterized in that: The angle adjustment mechanism has two vertically fixed poles at one end of the top of the lifting bracket. The top frame is hinged to the top of the poles. An angle hydraulic cylinder is hinged to the other end of the top of the lifting bracket. The end of the angle hydraulic cylinder facing away from the lifting bracket is hinged to the top frame. A hydraulic pump station for controlling the action of the angle hydraulic cylinder is provided on the mobile chassis.

3. The dust removal device of the coal preparation machine according to claim 2, characterized in that: Two sliding tubes are symmetrically hinged at one end of the top of the lifting bracket close to the angle hydraulic cylinder. A guide rod is slidingly provided inside the sliding tube, and the guide rod is hinged to the bottom of the top frame.

4. The dust removal device for a coal preparation machine according to claim 1, characterized in that: The lifting bracket is vertically slidably connected to the top of the mobile chassis, a frame plate is fixedly provided inside the lifting bracket, and a lifting hydraulic cylinder and a hydraulic pump station for controlling the movement of the lifting hydraulic cylinder are provided between the frame plate and the mobile chassis.

5. The dust removal device for a coal preparation machine according to claim 4, characterized in that: Four sliding rods are evenly arranged on the bottom of the lifting bracket, a supporting tube is vertically fixedly arranged on the top of the mobile chassis, and the sliding rods are slidably arranged inside the supporting tube.

6. The dust removal device for a coal preparation machine according to claim 1, characterized in that: A front bracket is symmetrically arranged at one end of the mobile chassis, and a rear support rod is symmetrically arranged at the other end of the mobile chassis. Bottom support mechanisms are both arranged on the front bracket and the rear support rod.

7. The dust removal device for a coal preparation machine according to claim 6, characterized in that: The bottom support mechanism is fixedly arranged on an internal threaded tube inside the front bracket and the rear support rod. The internal thread of the internal threaded tube is equipped with a support screw. The bottom end of the support screw is rotatably provided with a foot plate. The top end of the support screw is provided with a handle, and the bottom of the foot plate is provided with a pad.

8. The dust removal device for a coal preparation machine according to claim 1, characterized in that: The bottom of the mobile chassis is evenly provided with moving wheels.

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