Buffering and dust removing device for blanking point of belt conveyor

Abstract

The utility model discloses a belt conveyor blanking point buffering dust removal device which comprises a blanking point buffering device and a blanking point dust removal device, the blanking point dust removal device is arranged on the blanking point buffering device, and the blanking point buffering device comprises a buffering inclined pipe, a first dust suction pipe, a supporting frame, a second dust suction pipe and a rubber dustproof curtain. Dust covers are fixedly connected to the top end and the bottom end of the buffering inclined pipe correspondingly, and one end of the first dust suction pipe is fixedly connected to the side, close to the first dust suction pipe, of the dust cover at the top end of the buffering inclined pipe. By designing the buffer inclined pipe, coal falling from the upper belt conveyor can slide in the pipe and is gradually decelerated to reduce power, the impact force of the coal on the lower belt conveyor is effectively reduced, by designing a linkage mechanism of the fan blades, the rotating ring and the brush, automatic cleaning of the filter screen is achieved, the filter screen is effectively prevented from being blocked, and the service life of the filter screen is prolonged. The continuous and efficient operation of the dust removal system is ensured, and the filter screen replacement frequency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal dust removal, in particular to a buffer dust removal device at a belt conveyor drop point. Background Art

[0002] In the process of material transportation, belt conveyors, as a common conveying equipment, are widely used in various industrial fields. Belt conveyors are often used in coal transportation. At the dropping point of the belt conveyor, when the coal falls from a height, it will generate a large impact force and fly dust, which will not only cause wear and damage to the belt conveyor, but also pollute the environment and affect the health of the workers. In addition, the dust at the dropping point is large and the filter needs to be replaced frequently. Therefore, a buffer dust removal device at the dropping point of the belt conveyor is urgently needed to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a buffer dust removal device for a belt conveyor drop point to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a buffer dust removal device at a drop point of a belt conveyor, comprising a drop point buffer device and a drop point dust removal device, wherein the drop point dust removal device is arranged on the drop point buffer device, and the drop point buffer device comprises a buffer inclined tube, a first dust suction tube, a support frame, an ash dropping hole, a second dust suction tube and a rubber dust curtain, the top and bottom ends of the buffer inclined tube are fixedly connected with dust covers, one end of the first dust suction tube is fixedly connected to the dust cover at the top end of the buffer inclined tube close to the side of the first dust suction tube, the support frame is symmetrically arranged on both sides of the buffer inclined tube, and the support frame is fixedly connected to the two dust covers of the buffer inclined tube, the ash dropping hole is opened through the buffer inclined tube, the bottom end of the second dust suction tube is fixedly connected to the dust cover at the bottom end of the buffer inclined tube, and the top end of the rubber dust curtain is fixedly connected to the top end of the dust cover at the top end of the buffer inclined tube away from the first dust suction tube.

[0005] Preferably, the dust removal device at the drop point includes a dust collecting box, a dust collecting pipe, an exhaust fan, a support shaft frame, a sleeve, fan blades, a rotating ring, a filter, a brush and a slide valve. The dust collecting pipe is fixedly installed on the top of the dust collecting box, the exhaust fan is fixedly installed on the top of the dust collecting pipe, the support shaft frame is fixedly connected to the inside of the dust collecting pipe, the sleeve is rotatably connected to the middle bottom end of the support shaft frame, the fan blades are evenly distributed on the outside of the sleeve, and one end of the fan blades is fixedly connected to the outside of the sleeve, the inner side of the rotating ring is fixedly connected to the end of the fan blade away from the sleeve, the outer side of the filter is fixedly connected to the inside of the rotating ring, and the filter is located below the fan blade, the two ends of the brush are respectively fixedly installed in the inside of the dust collecting pipe, and the slide valve is slidably inserted in the inside of the dust collecting box.

[0006] Preferably, the bottom end of the dust box is fixedly connected to the buffer inclined tube, and the dust box is located directly above the dust dropping hole, one side of the dust box is fixedly connected to the bottom end of the first dust suction pipe, and the side of the dust box away from the first dust suction pipe is fixedly connected to the top of the second dust suction pipe.

[0007] Preferably, the rotating ring is rotatably connected to the inside of the dust removal pipe.

[0008] Preferably, the filter is located between the fan blades and the brush, and the top end of the brush contacts the bottom end of the filter.

[0009] Preferably, the slide valve is located below the interface between the first dust suction pipe and the dust collecting box, and the slide valve is located below the interface between the second dust suction pipe and the dust collecting box.

[0010] Preferably, the fan blades are arranged at an angle.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model designs a buffer inclined pipe so that the coal dropped from the upper belt conveyor can slide in the pipe and gradually slow down and reduce power, thereby effectively reducing the impact force of the coal on the lower belt conveyor. This design not only prolongs the service life of the belt conveyor, but also reduces the noise and vibration caused by the impact.

[0013] An exhaust fan is used to form negative pressure inside the two dust covers of the buffer inclined tube, and the generated coal powder dust is quickly sucked into the dust box. This active dust collection method is more efficient than traditional passive dust removal, and can significantly reduce the dust concentration in the working environment and ensure the health of the staff. By designing the linkage mechanism of the fan blades, rotating rings and brushes, automatic cleaning of the filter is achieved. While the air flow drives the fan blades to rotate, it also drives the rotation of the filter and the cleaning action of the brush. This design effectively prevents the filter from being blocked and ensures the continuous and efficient operation of the dust removal system, thereby reducing the frequency of filter replacement. The dust in the dust box can be discharged regularly and returned to the buffer inclined tube to be transported together with the coal. This design not only reduces the waste of coal powder, but also improves the utilization rate of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the buffer device for the drop point in the utility model;

[0016] Figure 3It is a schematic diagram of the structure of the buffer device for the drop point in the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the dust removal device at the material drop point in the utility model;

[0018] Figure 5 It is a schematic diagram of the disassembled structure of the dust removal device at the material drop point in the utility model;

[0019] Figure 6 It is a schematic diagram of the structure of the dust removal device at the material drop point in the utility model;

[0020] Figure 7 It is a schematic diagram of the structure of the dust removal device at the material drop point in the utility model.

[0021] In the figure: 1-drop point buffer device, 2-drop point dust removal device, 3-buffer inclined pipe, 4-first dust suction pipe, 5-support frame, 6-ash drop hole, 7-second dust suction pipe, 8-rubber dust curtain, 9-dust collecting box, 10-dust removal pipe, 11-exhaust fan, 12-support shaft frame, 13-shaft sleeve, 14-fan blade, 15-rotating ring, 16-filter screen, 17-brush, 18-slide plate valve. 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] See also Figure 1-7 The utility model provides an embodiment: a buffer dust removal device for a belt conveyor dropping point, comprising a dropping point buffer device 1 and a dropping point dust removal device 2, the dropping point dust removal device 2 is arranged on the dropping point buffer device 1, the dropping point buffer device 1 comprises a buffer inclined tube 3, a first dust suction tube 4, a support frame 5, an ash dropping hole 6, a second dust suction tube 7 and a rubber dust curtain 8, the top and bottom ends of the buffer inclined tube 3 are fixedly connected with dust covers, one end of the first dust suction tube 4 is fixedly connected to the dust cover at the top of the buffer inclined tube 3 close to the side of the first dust suction tube 4, the support frame 5 is symmetrically arranged on both sides of the buffer inclined tube 3, and the support frame 5 is fixedly connected to the two dust covers of the buffer inclined tube 3, the ash dropping hole 6 is opened through the buffer inclined tube 3, the bottom end of the second dust suction tube 7 is fixedly connected to the dust cover at the bottom end of the buffer inclined tube 3, and the top end of the rubber dust curtain 8 is fixedly connected to the top of the dust cover at the top of the buffer inclined tube 3 away from the top of the first dust suction tube 4.

[0024] The dust removal device 2 at the drop point includes a dust collecting box 9, a dust collecting pipe 10, an exhaust fan 11, a support shaft frame 12, a sleeve 13, a fan blade 14, a rotating ring 15, a filter screen 16, a brush 17 and a slide valve 18. The dust collecting pipe 10 is fixedly installed at the top of the dust collecting box 9, the exhaust fan 11 is fixedly installed at the top of the dust collecting pipe 10, the support shaft frame 12 is fixedly connected to the inside of the dust collecting pipe 10, the sleeve 13 is rotatably connected to the middle bottom end of the support shaft frame 12, the fan blades 14 are evenly distributed on the outside of the sleeve 13, and one end of the fan blade 14 is fixedly connected to the outside of the sleeve 13, the inner side of the rotating ring 15 is fixedly connected to the end of the fan blade 14 away from the sleeve 13, the outer side of the filter screen 16 is fixedly connected to the inside of the rotating ring 15, and the filter screen 16 is located below the fan blade 14, the two ends of the brush 17 are respectively fixedly installed in the inside of the dust collecting pipe 10, and the slide valve 18 is slidably inserted in the inside of the dust collecting box 9.

[0025] The bottom end of the dust box 9 is fixedly connected to the buffer inclined tube 3, and the dust box 9 is located directly above the dust dropping hole 6, one side of the dust box 9 is fixedly connected to the bottom end of the first dust suction tube 4, and the side of the dust box 9 away from the first dust suction tube 4 is fixedly connected to the top of the second dust suction tube 7, and the dust box 9 extracts the air inside the two dust covers of the buffer inclined tube 3 through the first dust suction tube 4 and the second dust suction tube 7.

[0026] The rotating ring 15 is rotatably connected to the inside of the dust removal pipe 10 , and the rotation of the rotating ring 15 drives the filter screen 16 to rotate.

[0027] The filter 16 is located between the fan blades 14 and the brush 17, and the top of the brush 17 contacts the bottom of the filter 16. The fan blades 14 drive the rotating ring 15 and the filter 16 to rotate, so that the brush 17 cleans the dust at the bottom of the filter 16.

[0028] The slide valve 18 is located below the interface between the first dust suction pipe 4 and the dust collecting box 9, and the slide valve 18 is located below the interface between the second dust suction pipe 7 and the dust collecting box 9. The dust swept by the brush 17 falls on the top of the slide valve 18, and the slide valve 18 is pulled out regularly to discharge the dust into the buffer inclined tube 3.

[0029] The fan blades 14 are arranged at an angle, and the inclined arrangement facilitates the flowing air to push the fan blades 14 to rotate, thereby realizing the automatic dust removal of the filter screen 16 by the brush 17.

[0030] Working principle: During use, the drop point buffer device 1 is first moved to the belt conveyor by external force, and the drop point of the belt conveyor is located inside the dust cover at the top of the buffer inclined tube 3, and the dust cover at the bottom of the buffer inclined tube 3 is located above the belt conveyor that receives the coal. Then the exhaust fan 11 is started to extract the air inside the dust box 9. The air pressure inside the dust box 9 is reduced, and the dust box 9 extracts the air inside the two dust covers of the buffer inclined tube 3 through the first dust suction pipe 4 and the second dust suction pipe 7. When the belt conveyor located above transports coal, the coal falls into the buffer inclined tube 3 and slides downward to fall onto the belt conveyor located below. The coal reduces the impact force of the coal by sliding inside the buffer inclined tube 3, thereby achieving a buffering effect. A large amount of coal powder dust generated when the coal falls into the buffer inclined tube 3 and when the coal in the buffer inclined tube 3 falls into the belt conveyor below is extracted The fan 11 pumps the air into the dust box 9, and the rubber dust curtain 8 prevents the dust from spreading to the outside. Then the air is discharged by the exhaust fan 11, and the dust is blocked by the filter 16. When the air passes through the fan blades 14, the flowing air pushes the fan blades 14 to rotate. The rotation of the fan blades 14 drives the rotating ring 15 to rotate inside the dust removal pipe 10. The rotation of the rotating ring 15 drives the filter 16 to rotate. The rotation of the filter 16 makes the top of the brush 17 constantly rub the bottom of the filter 16, so that the brush 17 constantly sweeps the dust attached to the bottom of the filter 16 and drops it into the top of the slide valve 18, and the dust inside the dust box 9 is discharged regularly. The slide valve 18 is pulled away from the dust box 9 by external force. When the slide valve 18 is pulled out, the dust inside the dust box 9 loses support and falls downward into the buffer inclined pipe 3 and continues to be transported with the coal, thereby reducing the waste of coal powder.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A belt conveyor drop point buffer dust removal device, comprising a drop point buffer device (1) and a drop point dust removal device (2), characterized in that: The drop point dust removal device (2) is arranged on the drop point buffer device (1), and the drop point buffer device (1) comprises a buffer inclined tube (3), a first dust suction pipe (4), a support frame (5), an ash drop hole (6), a second dust suction pipe (7) and a rubber dust curtain (8), the top and bottom ends of the buffer inclined tube (3) are both fixedly connected to dust covers, one end of the first dust suction pipe (4) is fixedly connected to the dust cover at the top end of the buffer inclined tube (3) close to the first dust suction pipe (4), The support frame (5) is symmetrically arranged on both sides of the buffer inclined tube (3), and the support frame (5) is fixedly connected to the two dust covers of the buffer inclined tube (3), the dust drop hole (6) is opened through the buffer inclined tube (3), the bottom end of the second dust suction pipe (7) is fixedly connected to the dust cover at the bottom end of the buffer inclined tube (3), and the top end of the rubber dust curtain (8) is fixedly connected to the top end of the dust cover at the top end of the buffer inclined tube (3) away from the top end of the first dust suction pipe (4).

2. The belt conveyor drop point buffer dust removal device according to claim 1, characterized in that: The dust removal device (2) at the material drop point comprises a dust collecting box (9), a dust removal pipe (10), an exhaust fan (11), a support shaft frame (12), a shaft sleeve (13), a fan blade (14), a rotating ring (15), a filter screen (16), a brush (17) and a slide valve (18); the dust removal pipe (10) is fixedly mounted on the top of the dust collecting box (9); the exhaust fan (11) is fixedly mounted on the top of the dust removal pipe (10); the support shaft frame (12) is fixedly connected to the inside of the dust removal pipe (10); the shaft sleeve (13) is rotatably connected to the middle bottom end of the support shaft frame (12); The fan blades (14) are evenly distributed on the outside of the shaft sleeve (13), and one end of the fan blade (14) is fixedly connected to the outside of the shaft sleeve (13); the inner side of the rotating ring (15) is fixedly connected to the end of the fan blade (14) away from the shaft sleeve (13); the outer side of the filter (16) is fixedly connected to the inside of the rotating ring (15), and the filter (16) is located below the fan blade (14); the two ends of the brush (17) are respectively fixedly installed inside the dust removal pipe (10); and the slide valve (18) is slidably inserted into the inside of the dust collecting box (9).

3. The buffer dust removal device for the belt conveyor drop point according to claim 2 is characterized in that: The bottom end of the dust box (9) is fixedly connected to the buffer inclined tube (3), and the dust box (9) is located directly above the dust dropping hole (6); one side of the dust box (9) is fixedly connected to the bottom end of the first dust suction pipe (4), and the side of the dust box (9) away from the first dust suction pipe (4) is fixedly connected to the top end of the second dust suction pipe (7).

4. The buffer dust removal device for the belt conveyor drop point according to claim 2 is characterized in that: The rotating ring (15) is rotatably connected to the interior of the dust removal pipe (10).

5. The buffer dust removal device for the belt conveyor drop point according to claim 2 is characterized in that: The filter screen (16) is located between the fan blade (14) and the brush (17), and the top end of the brush (17) contacts the bottom end of the filter screen (16).

6. The buffer dust removal device for the belt conveyor drop point according to claim 2 is characterized in that: The slide valve (18) is located below the interface between the first dust suction pipe (4) and the dust collecting box (9), and the slide valve (18) is located below the interface between the second dust suction pipe (7) and the dust collecting box (9).

7. The buffer dust removal device for the belt conveyor drop point according to claim 2 is characterized in that: The fan blades (14) are arranged in an inclined manner.

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