Pneumatic coal separation conveyor belt

Abstract

The utility model discloses a pneumatic coal dressing conveyor belt, which belongs to the technical field of pneumatic coal dressing, and comprises a mounting rack, four fans are embedded on the upper surface of the mounting rack, two ends of the mounting rack are respectively and rotatably connected with a driving roller and a driven roller, and the driving roller and the driven roller are connected through a conveyor belt main body. Through holes are formed in the surface of the conveying belt body, a motor is fixedly connected to one side of the mounting frame, the output end of the motor is fixed to the driving roller, a connecting block is fixedly connected to the lower end of the mounting frame, and a speed change gear box is fixedly connected to the lower end of the connecting block. By means of the technical scheme, fine dust and raw coal are prevented from blocking the through holes due to long-term deposition and attachment, the raw coal winnowing effect is improved, the labor burden of workers during cleaning in the later period is reduced, meanwhile, the rotating impeller rollers can further blow the cleaned raw coal away from the conveying belt body, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind coal preparation, and more specifically to a wind coal preparation conveyor belt. Background Art

[0002] Wind coal selection refers to the principle that people use the weight of coal to judge the quality of coal, use equipment to generate wind, and screen the quality of coal based on the wind force.

[0003] For example, the authorization announcement number CN208679449U discloses a wind-driven coal-cleaning conveyor belt, which includes a plurality of conveyor plates, a driving wheel and a driven wheel. The plurality of conveyor plates are sequentially connected to form the wind-driven coal-cleaning conveyor belt. A hinge is connected between any two adjacent conveyor plates, and the plurality of conveyor plates are connected together by the hinges. The driving wheel and the driven wheel are respectively located at the front and rear ends of the conveyor belt. The driving wheel is driven to rotate by a driving motor. Each conveyor plate is provided with a plurality of air holes, which are arranged between the top and bottom surfaces of the conveyor plate. The air holes are blown longitudinally from the bottom of the conveyor belt to the top thereof, so as to blow the crushed raw coal on the conveyor belt into a loose and suspended state, thereby facilitating the screening of the raw coal. However, the wind-driven coal-cleaning conveyor belt has the following disadvantages during use;

[0004] When the wind-driven coal-cleaning conveyor belt is idle, some fine dust and coal powder in the air are deposited and attached to the air holes, which will clog the air holes over time, resulting in insufficient air output from the air holes, which will in turn affect the air selection effect. Therefore, personnel are required to conduct large-scale inspections and cleanings during use, which puts a heavy labor burden on personnel. Therefore, the utility model provides a wind-driven coal-cleaning conveyor belt. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present utility model is to provide a wind-driven coal-selection conveyor belt, which solves the problem that during the long-term use of the wind-driven coal-selection conveyor belt in the prior art, some fine raw coal is easily deposited and attached to the air holes, causing blockage of the air holes, resulting in insufficient air output from the air holes, which in turn affects the air selection effect, and requires personnel to clean up a large area subsequently, which results in a heavy labor burden on the personnel.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A wind-driven coal preparation conveyor belt, comprising a mounting frame, four fans are embedded on the upper surface of the mounting frame, two ends of the mounting frame are rotatably connected with a driving roller and a driven roller, the driving roller and the driven roller are connected through a conveyor belt body, a through hole is opened on the surface of the conveyor belt body, a motor is fixedly connected to one side of the mounting frame, and the output end of the motor is fixed to the driving roller;

[0010] The lower end of the mounting frame is fixedly connected with a connecting block, the lower end of the connecting block is fixedly connected with a speed change gear box, one side of the speed change gear box is provided with a brush roller and an impeller roller, and the brush roller and the impeller roller are respectively distributed on both sides of the conveyor belt body;

[0011] One end of the active roller passes through the mounting frame and is fixedly connected with a pulley 1, and one side of the speed change gear box is provided with a pulley 2, and the pulley 1 and the pulley 2 are connected by a belt strip.

[0012] Furthermore, the lower end of the mounting frame is fixedly connected to an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected to a connecting frame, the inner wall of the connecting frame is rotatably connected to a tensioning roller, and the outer circumferential surface of the tensioning roller is in contact with the conveyor belt body.

[0013] Furthermore, the speed change gear box includes a box body, a driving gear, a connecting gear and a driven gear. The box body is provided with a driving gear, and the two sides of the driving gear are respectively fixed to the brush roller and the pulley. The brush roller and the pulley are fixed and rotatably connected to the box body. The inner wall of the box body is also rotatably connected with a connecting gear and a driven gear. The driving gear, the connecting gear and the driven gear are meshed with each other, and one side of the driven gear is fixed to the impeller roller.

[0014] Furthermore, a reinforcement block is fixedly connected to the lower end of the mounting frame, and one end of the brush roller and the impeller roller are rotatably connected to the reinforcement block.

[0015] Furthermore, a flexible metal mesh is fixedly connected to the inner wall of the through hole.

[0016] Furthermore, the impeller roller is away from the inner side of the conveyor belt body.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] The motor of this scheme cooperates with the active roller and the driven roller to drive the conveyor belt body to rotate in a cycle. The circulating conveyor belt body can drive the raw coal to move. When the raw coal moves on the mounting frame along with the conveyor belt body, the wind force output by the fan on the mounting frame can be blown to the raw coal through the through hole, so as to select the raw coal by wind. Before the wind selection, let the wind-powered coal selection conveyor belt run as a whole for a period of time. The rotating active roller cooperates with pulley one, pulley two, belt strip and speed gear box to drive the brush roller and impeller roller to rotate. The rotating brush roller can clean the surface of the conveyor belt body to prevent fine dust and raw coal from clogging the through hole due to long-term deposition and attachment, thereby improving the wind selection effect of the raw coal and reducing the labor burden of the later personnel during cleaning. At the same time, the rotating impeller roller can further blow the cleaned raw coal away from the conveyor belt body to improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of the conveyor belt of the utility model in a dismantled state;

[0022] Figure 3 This is a schematic diagram of the brush roller and impeller roller structure of the utility model;

[0023] Figure 4 It is a schematic structural diagram of a cross-section of the speed change gear box of the utility model;

[0024] Figure 5 It is a structural schematic diagram of a partial cross-section of the conveyor belt main body of the utility model.

[0025] Description of the numbers in the figure:

[0026] 1. Mounting frame; 11. Fan; 12. Active roller; 13. Driven roller; 14. Conveyor belt body; 141. Through hole; 142. Flexible metal mesh; 15. Motor; 16. Reinforcement block; 17. Electric telescopic rod; 18. Connecting frame; 19. Tensioning roller; 2. Connecting block; 3. Speed ​​change gear box; 31. Box body; 32. Active gear; 33. Connecting gear; 34. Driven gear; 4. Brush roller; 5. Impeller roller; 6. Pulley 1; 7. Pulley 2; 8. Belt strip. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] Example

[0029] like Figure 1-5 As shown, a wind-driven coal preparation conveyor belt comprises a mounting frame 1, four fans 11 are embedded on the upper surface of the mounting frame 1, two ends of the mounting frame 1 are rotatably connected with a driving roller 12 and a driven roller 13, the driving roller 12 and the driven roller 13 are connected through a conveyor belt body 14, a through hole 141 is opened on the surface of the conveyor belt body 14, a motor 15 is fixedly connected to one side of the mounting frame 1, and the output end of the motor 15 is fixed to the driving roller 12;

[0030] The lower end of the mounting frame 1 is fixedly connected with a connecting block 2, the lower end of the connecting block 2 is fixedly connected with a speed change gear box 3, a brush roller 4 and an impeller roller 5 are arranged on one side of the speed change gear box 3, and the brush roller 4 and the impeller roller 5 are respectively distributed on both sides of the conveyor belt body 14;

[0031] One end of the active roller 12 passes through the mounting frame 1 and is fixedly connected to a pulley 1 6 . A pulley 2 7 is provided on one side of the speed change gear box 3 . The pulley 1 6 and the pulley 2 7 are connected by a belt strip 8 .

[0032] When in use, the motor 15 cooperates with the active roller 12 and the driven roller 13 to drive the conveyor belt body 14 to rotate in a circular manner. The circulating conveyor belt body 14 can drive the raw coal to move. When the raw coal moves on the mounting frame 1 along with the conveyor belt body 14, the wind force output by the fan 11 on the mounting frame 1 can be blown to the raw coal through the through hole 141, thereby air-selecting the raw coal. Before air-selecting, let the wind-powered coal selection conveyor belt run as a whole for a period of time. The rotating active roller 12 cooperates with the pulley 1 6, the pulley 2 7, the belt strip 8 and the speed change gear box 3 to drive the brush roller 4 and the impeller roller 5 to rotate. The rotating brush roller 4 can clean the surface of the conveyor belt body 14 to prevent fine dust and raw coal from clogging the through hole 141 due to long-term deposition and attachment, thereby improving the air-selection effect of the raw coal and reducing the labor burden of the later personnel during cleaning. At the same time, the rotating impeller roller 5 can further blow the cleaned raw coal away from the conveyor belt body 14 to improve the cleaning effect.

[0033] like Figure 1-2 As shown, the lower end of the mounting frame 1 is fixedly connected to an electric telescopic rod 17, the output end of the electric telescopic rod 17 is fixedly connected to a connecting frame 18, the inner wall of the connecting frame 18 is rotatably connected to a tensioning roller 19, and the outer circumferential surface of the tensioning roller 19 is in contact with the conveyor belt body 14.

[0034] When in use, start the electric telescopic rod 17, and the electric telescopic rod 17 cooperates with the connecting frame 18 to drive the tensioning roller 19 to move downward, which can drive the conveyor belt body 14 to improve the stability of the transmission. When the output end of the electric telescopic rod 17 contracts, it is convenient to disassemble and replace the conveyor belt body 14.

[0035] like Figure 1-4As shown, the speed change gear box 3 includes a box body 31, a driving gear 32, a connecting gear 33 and a driven gear 34. The driving gear 32 is arranged in the box body 31. The two sides of the driving gear 32 are respectively fixed to the brush roller 4 and the pulley 2 7. The brush roller 4 and the pulley 2 7 are fixed and rotatably connected to the box body 31. The inner wall of the box body 31 is also rotatably connected with the connecting gear 33 and the driven gear 34. The driving gear 32, the connecting gear 33 and the driven gear 34 are meshed with each other, and one side of the driven gear 34 is fixed to the impeller roller 5.

[0036] When in use, pulley 2 7 can rotate after receiving the power transmitted by pulley 1 6 and belt strip 8. The rotating pulley 2 7 can drive the driving gear 32 and the brush roller 4 to rotate. The rotating brush roller 4 can clean the surface of the conveyor belt body 14. The rotating driving gear 32 cooperates with the connecting gear 33 to drive the driven gear 34 to accelerate the rotation, thereby making the impeller roller 5 rotate faster and further improving the cleaning effect.

[0037] like Figure 2-3 As shown, a reinforcing block 16 is also fixedly connected to the lower end of the mounting frame 1 , and one end of the brush roller 4 and the impeller roller 5 are both rotatably connected to the reinforcing block 16 .

[0038] When in use, the reinforcing block 16 can improve the stability of the brush roller 4 and the impeller roller 5 during rotation.

[0039] like Figure 1 and 5 As shown, a flexible metal mesh 142 is fixedly connected to the inner wall of the through hole 141 .

[0040] When in use, the flexible metal mesh 142 can improve the overall strength of the conveyor belt body 14 when filling the through holes 141 , and can prevent fine dust and raw coal from contacting the fan 11 through the through holes 141 , so as not to affect the use of the fan 11 .

[0041] like Figure 1 As shown, the impeller roller 5 is away from the inner side of the conveyor belt body 14.

[0042] When in use, the impeller roller 5 is made of a hard material, and the impeller roller 5 is kept away from the conveyor belt body 14 to prevent the rotating impeller roller 5 from rubbing against the conveyor belt body 14 , thereby increasing the service life of the conveyor belt body 14 .

[0043] In summary, the specific working process of this scheme is as follows: the motor 15 cooperates with the active roller 12 and the driven roller 13 to drive the conveyor belt body 14 to rotate in a circular manner. The circularly rotating conveyor belt body 14 can drive the raw coal to move. When the raw coal moves on the mounting frame 1 along with the conveyor belt body 14, the wind force output by the fan 11 on the mounting frame 1 can be blown to the raw coal through the through hole 141, thereby air-selecting the raw coal. Before air-selecting, let the wind-powered coal selection conveyor belt run as a whole for a period of time. The rotating active roller 12 cooperates with the pulley 1 6, the pulley 2 7, the belt strip 8 and the speed change gear box 3 to drive the brush roller 4 and the impeller roller 5 to rotate. The rotating brush roller 4 can clean the surface of the conveyor belt body 14 to prevent fine dust and raw coal from clogging the through hole 141 due to long-term deposition and attachment, thereby improving the air-selection effect of the raw coal and reducing the labor burden of the later personnel during cleaning. At the same time, the rotating impeller roller 5 can further blow the cleaned raw coal away from the conveyor belt body 14 to improve the cleaning effect.

[0044] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A pneumatic coal cleaning conveyor belt, comprising a mounting frame (1), characterized in that: Four fans (11) are embedded on the upper surface of the mounting frame (1); two ends of the mounting frame (1) are rotatably connected to a driving roller (12) and a driven roller (13); the driving roller (12) and the driven roller (13) are connected via a conveyor belt body (14); a through hole (141) is provided on the surface of the conveyor belt body (14); a motor (15) is fixedly connected to one side of the mounting frame (1); an output end of the motor (15) is fixed to the driving roller (12); The lower end of the mounting frame (1) is fixedly connected to a connecting block (2), the lower end of the connecting block (2) is fixedly connected to a speed change gear box (3), a brush roller (4) and an impeller roller (5) are arranged on one side of the speed change gear box (3), and the brush roller (4) and the impeller roller (5) are respectively distributed on both sides of the conveyor belt body (14); One end of the active roller (12) passes through the mounting frame (1) and is fixedly connected to a pulley 1 (6); a pulley 2 (7) is provided on one side of the speed change gear box (3); and the pulley 1 (6) and the pulley 2 (7) are connected via a belt strip (8).

2. A wind-powered coal separation conveyor belt according to claim 1, characterized in that: The lower end of the mounting frame (1) is fixedly connected to an electric telescopic rod (17), the output end of the electric telescopic rod (17) is fixedly connected to a connecting frame (18), the inner wall of the connecting frame (18) is rotatably connected to a tensioning roller (19), and the outer circumferential surface of the tensioning roller (19) is in contact with the conveyor belt body (14).

3. A wind-powered coal separation conveyor belt according to claim 1, characterized in that: The speed change gear box (3) comprises a box body (31), a driving gear (32), a connecting gear (33) and a driven gear (34). The box body (31) is provided with a driving gear (32). The two sides of the driving gear (32) are respectively fixed to a brush roller (4) and a second belt pulley (7). The brush roller (4) and the second belt pulley (7) are fixed and rotatably connected to the box body (31). The inner wall of the box body (31) is also rotatably connected with a connecting gear (33) and a driven gear (34). The driving gear (32), the connecting gear (33) and the driven gear (34) are meshed with each other. One side of the driven gear (34) is fixed to an impeller roller (5).

4. A wind-powered coal separation conveyor belt according to claim 1, characterized in that: The lower end of the mounting frame (1) is also fixedly connected to a reinforcement block (16), and one end of the brush roller (4) and the impeller roller (5) are both rotatably connected to the reinforcement block (16).

5. The wind-powered coal separation conveyor belt according to claim 1, characterized in that: A flexible metal mesh (142) is fixedly connected to the inner wall of the through hole (141).

6. A wind-powered coal preparation conveyor belt according to claim 1, characterized in that: The impeller roller (5) is away from the inner side of the conveyor belt body (14).

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