Multi-channel coal conveying device capable of preventing coal blockage and reducing abrasion of conveying belt

Abstract

The invention discloses a multi-channel coal conveying device capable of preventing coal blockage and reducing abrasion of a conveying belt, which comprises a coal falling mechanism, a coal conveying mechanism and a coal conveying mechanism, the coal falling mechanism at least comprises two coal falling channels, and each coal falling channel is provided with a coal outlet; the conveying belt is arranged below the coal falling mechanism, and the position of the coal outlet corresponds to that of the conveying belt; the rapping mechanism and the cleaning mechanism are installed on the coal falling mechanism, the rapping mechanism is used for preventing a coal falling channel from being blocked, and the cleaning mechanism is used for cleaning the coal falling channel. The rapping mechanism and the cleaning mechanism are arranged and mounted on the coal falling mechanism, the rapping mechanism is used for preventing the coal falling channel from being blocked, the cleaning mechanism is used for cleaning the coal falling channel, and the rapping mechanism and the cleaning mechanism are mounted on the channel A or the channel B, so that the blocking problem of the coal falling pipe can be reduced; and meanwhile, the interior of the coal drop pipe can be cleaned.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fire safety, and particularly relates to a multi-channel anti-blocking coal reduction conveying belt wear coal conveying device. BACKGROUND

[0002] In the field of coal conveying, the climbing conveyor has strong material lifting capacity and becomes the core equipment connecting different height operation surfaces, and is widely used in coal mine wellhead, coal washing plant stock bin and power plant coal storage yard and other scenes. It can stably convey the mined raw coal or processed clean coal from low place to high place through the inclined conveying belt, effectively solves the material transfer problem caused by the terrain drop, and greatly improves the automation degree and efficiency of coal conveying.

[0003] The coal drop pipe is an indispensable key component in the conveyor system, and its role is far beyond simple material guidance. It is like the "throat" of the conveying link, responsible for accurately guiding the coal conveyed by the climbing conveyor to the end into the next conveying link, such as the horizontal conveyor, the transfer point, or directly into the storage location such as the silo or the coal yard.

[0004] The traditional coal drop pipe has many problems when applied to the climbing conveyor with height difference and turning requirement (such as downward L-type turning), such as coal blockage and coal residue. SUMMARY

[0005] Therefore, the technical problem to be solved by the present application is to avoid coal blockage and coal residue.

[0006] The above technical problem is solved by the following technical scheme: the present application provides a multi-channel anti-blocking coal reduction conveying belt wear coal conveying device, which comprises a coal drop mechanism, which comprises at least two coal drop channels, each of which is provided with a coal outlet;

[0007] A conveying belt is arranged below the coal drop mechanism, and the position of the coal outlet corresponds to the conveying belt.

[0008] A vibrating mechanism and a cleaning mechanism are installed on the coal drop mechanism, the vibrating mechanism is used to avoid blockage of the coal drop channel, and the cleaning mechanism is used to clean the coal drop channel.

[0009] In one preferred embodiment of the multi-channel anti-blocking coal reduction conveying belt wear coal conveying device, the cleaning mechanism comprises a water distributor installed in the coal drop channel, and a nozzle installed on the water distributor.

[0010] In one preferred embodiment of the multi-channel anti-blocking coal reduction conveying belt wear coal conveying device, the vibrating mechanism is a vibrator.

[0011] In a preferred embodiment of the multi-channel anti-blocking coal conveying device with reduced coal belt abrasion, the vibrating mechanism comprises a driving member, a displacement member movably connected to the driving member, and an elastic member connected to the displacement member, and the driving member can periodically push the displacement member to press the elastic member.

[0012] In a preferred embodiment of the multi-channel anti-blocking coal conveying device with reduced coal belt abrasion, the cleaning mechanism comprises a nozzle, which is rotatably installed inside the coal falling channel, and the displacement member can adjust the spray angle of the nozzle when moving.

[0013] In a preferred embodiment of the multi-channel anti-blocking coal conveying device with reduced coal belt abrasion, the coal falling mechanism is provided with a fixed cover inside the coal falling channel, the fixed cover is installed with a fixed shaft, the fixed shaft is installed with a rotating member, and the nozzle is installed on the rotating member.

[0014] The rotating member is connected to the displacement member, and the displacement member can drive the rotating member to rotate when moving.

[0015] In a preferred embodiment of the multi-channel anti-blocking coal conveying device with reduced coal belt abrasion, the radial side wall of the displacement member is provided with a through groove, and one end of the rotating member penetrates the displacement member through the through groove.

[0016] In a preferred embodiment of the multi-channel anti-blocking coal conveying device with reduced coal belt abrasion, the driving member is a motor, a rotating ring is installed on the output shaft of the driving member, a resisting column is installed on the rotating ring, a pressure receiving arc body is arranged on the radial inner wall of the displacement member, and when the rotating ring rotates, the resisting column presses the pressure receiving arc body to push the displacement member to move.

[0017] In a preferred embodiment of the multi-channel anti-blocking coal conveying device with reduced coal belt abrasion, the coal falling channel is further provided with a wear-resistant mechanism.

[0018] In a preferred embodiment of the multi-channel anti-blocking coal conveying device with reduced coal belt abrasion, the wear-resistant mechanism comprises a rubber layer attached to the inner wall of the coal falling channel, and a wear-resistant layer attached to the rubber layer.

[0019] The rubber layer and the wear-resistant layer are fixed to the inner wall of the coal falling channel by bolts.

[0020] The beneficial effects of the present invention are as follows: The present invention sets up a rapping mechanism and a cleaning mechanism, which are installed on the coal dropping mechanism. The rapping mechanism is used to prevent the coal dropping channel from being blocked, and the cleaning mechanism is used to clean the coal dropping channel. Both the rapping mechanism and the cleaning mechanism are installed on the A channel and the B channel, which can reduce the problem of blockage of the coal dropping pipe and clean the inside of the coal dropping pipe. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein:

[0022] Figure 1 The overall structure diagram of the multi-channel anti-blocking coal conveying device that reduces conveyor belt wear is shown.

[0023] Figure 2 A schematic diagram of the cleaning mechanism is shown;

[0024] Figure 3 A schematic diagram of the wear-resistant mechanism is shown.

[0025] Figure 4 A schematic diagram of the rapping mechanism and the cleaning mechanism is shown;

[0026] Figure 5 The internal structure diagrams of the rapping mechanism and the cleaning mechanism are shown;

[0027] Figure 6 A partial structural diagram of the rapping mechanism and the cleaning mechanism is shown;

[0028] Figure 7 The distribution diagram of the compressed arc body is shown.

[0029] 100. Coal dropping mechanism; 101. Coal dropping channel; 102. Coal outlet; 103. Coal hopper; 200. Conveyor belt; 300. Vibrating mechanism; 301. Vibrator; 302. Driving component; 303. Displacement component; 304. Elastic component; 305. Through groove; 306. Rotating ring; 307. Contact column; 308. Pressure-bearing arc body; 309. Limiting tube; 400. Cleaning mechanism; 401. Water distributor; 402. Nozzle; 403. Pressure boosting valve; 501. Fixed cover; 502. Fixed shaft; 503. Rotating component; 504. Connecting column; 600. Wear-resistant mechanism; 601. Rubber layer; 602. Wear-resistant layer. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0031] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0032] Reference Figure 1 This embodiment provides a multi-channel coal conveying device to prevent coal blockage and reduce conveyor belt wear, including a coal dropping mechanism 100, which includes at least two coal dropping channels 101, each of which is provided with a coal outlet 102. A coal dropping hopper 103 is provided at the top of the coal dropping mechanism 100. Coal enters the interior of the coal dropping channel 101 through the coal dropping hopper 103. In this embodiment, two coal dropping channels 101 are used, which are labeled as channel A and channel B, respectively. The included angle between channel A and channel B is 55°. When the coal enters from the coal dropping hopper 103, it can be diverted to the interior of channel A and channel B, and finally discharged through the coal outlet 102 of channel A and channel B. The angle of the downward L-shaped coal dropping pipe is changed to a downward material dropping path with a 55° included angle, so that the dropping direction changes and is the same as the splitting speed of the dropping, which reduces the deviation of the downstream conveyor belt.

[0033] The device also includes a conveyor belt 200, which is located below the coal dropping mechanism 100. The position of the coal outlet 102 corresponds to that of the conveyor belt 200. When the coal is discharged from the coal outlet 102, it will fall onto the conveyor belt 200 and be transported to the destination by the conveyor belt 200.

[0034] The device also includes a vibrating mechanism 300 and a cleaning mechanism 400, which are installed on the coal dropping mechanism 100. The vibrating mechanism 300 is used to prevent the coal dropping channel 101 from being blocked, and the cleaning mechanism 400 is used to clean the coal dropping channel 101. The vibrating mechanism 300 and the cleaning mechanism 400 are installed on both channel A and channel B.

[0035] As an optional embodiment, the cleaning mechanism 400 includes a water distributor 401 installed inside the coal chutes 101 and nozzles 402 installed on the water distributor 401. In this embodiment, an external water pipe is connected to the water distributor 401, so that external water can be transported to the water distributor 401 through the water pipe. Multiple nozzles 402 are installed on the water distributor 401. A pressure boosting valve 403 is also provided at the connection between the external water pipe and the water distributor 401, thereby increasing the flow rate of the liquid sprayed by the nozzles 402. When water enters the water distributor 401 through the water pipe, it can be sprayed out from several nozzles 402 to clean the residual coal slag inside the coal chutes 101.

[0036] As an optional embodiment, the rapping mechanism 300 is a vibrator 301. The vibrator 301 prevents materials from adhering to and accumulating on the pipe wall through periodic vibration, thereby improving work efficiency and safety.

[0037] As an optional embodiment, the rapping mechanism 300 includes a driving member 302, a displacement member 303 connected to and movable by the driving member 302, and an elastic member 304 connected to the displacement member 303. The driving member 302 can periodically push the displacement member 303 to move and press the elastic member 304. A limiting tube 309 is fixedly installed inside the coal falling channel 101. The displacement member 303 is slidably installed inside the limiting tube 309 through the internal structure of the slider groove. In this embodiment, the displacement member 303 is also a tubular structure. The outer wall of the displacement member 303 is in contact with the inner wall of the limiting tube 309. In this case, the displacement member 303 can move along the axial direction of the limiting tube 309, but cannot rotate.

[0038] The elastic element 304 is a spring. One end of the elastic element 304 abuts against the limiting tube 309, and the other end abuts against the displacement element 303. When the driving element 302 drives the displacement element 303 to move, it can press the elastic element 304. When the driving force of the driving element 302 on the displacement element 303 disappears, under the left and right pressure of the elastic element 304, the elastic element 304 pushes the displacement element 303 to move towards the inner wall of the coal falling channel 101, hitting the inner wall of the coal falling channel, causing the inner wall of the coal falling channel 101 to vibrate, thereby achieving the effect of clearing coal and preventing blockage.

[0039] The driving component 302 is a motor. A rotating ring 306 is mounted on the output shaft of the driving component 302. A contact post 307 is mounted on the rotating ring 306. A pressure arc 308 is provided on the radial inner wall of the displacement component 303. When the rotating ring 306 rotates, it drives the contact post 307 to press the pressure arc 308, thereby pushing the displacement component 303 to move.

[0040] The main structure of the drive component 302 is located outside the coal chuting channel 101, with only the output shaft extending into the interior of the coal chuting channel 101. The rotating ring 306 is located inside the coal chuting channel 101, and the rotating ring 306 can rotate synchronously with the output shaft of the drive component 302. Four abutment posts 307 are installed on the radial outer wall of the rotating ring 306, and four pressure-bearing arcs 308 are provided on the inner wall of the displacement component 303. The positions of the four abutment posts 307 and the four pressure-bearing arcs correspond one-to-one. Furthermore, there is a gap between the four pressure-bearing arcs 308. When the rotating ring 306 rotates, it can drive the abutment posts 307... 7. Press the pressure-bearing arc 308. At this time, the pressure-bearing arc 308 moves towards the elastic element 304 under pressure, thereby pressing the elastic element 304. When the abutment post 307 reaches the gap between the pressure-bearing arc 308, the abutment post 307 and the pressure-bearing arc 308 separate. The pressed elastic element 304 can release the elastic force onto the displacement element 303, pushing the displacement element 303 to move instantaneously towards the inner wall of the coal falling channel 101, impacting the inner wall of the coal falling channel 101, causing the entire coal falling channel 101 to vibrate slightly, thereby achieving the effect of unblocking the coal falling channel 101 and keeping the coal falling channel 101 in a good unobstructed state.

[0041] It should be further noted that the output shaft of the drive component 302, the rotating ring 306, the displacement component 303, and the limiting tube 309 should preferably be coaxial to make the entire rapping mechanism 300 operate more stably.

[0042] As an optional embodiment, in this embodiment, the rapping mechanism 300 can simultaneously adjust the cleaning angle of the cleaning mechanism 400 during operation. Specifically, the cleaning mechanism 400 includes a nozzle 402, which is rotatably installed inside the coal drop channel 101. When the displacement member 303 moves, it can adjust the spray angle of the nozzle 402.

[0043] In this embodiment, there are four nozzles 402, which are distributed around the central circumference of the limiting tube 309, and the included angle between each nozzle 402 is 90°.

[0044] The coal feeding mechanism 100 has a fixed cover 501 inside the coal feeding channel 101. The fixed cover 501 is equipped with a fixed shaft 502. A rotating component 503 is installed on the fixed shaft 502. The nozzle 402 is installed on the rotating component 503. The rotating component 503 is connected to the displacement component 303. When the displacement component 303 moves, it can drive the rotating component 503 to rotate.

[0045] The fixed shaft 502 and the limiting tube 309 are coaxial. The fixed shafts 502 installed on the fixed cover 501 are distributed in a circle, and there are four fixed shafts 502. The rotating part 503 has a mounting hole, and the fixed shaft 502 passes through the mounting hole. The end of the rotating part 503 is also provided with a connecting post 504, which is used to connect with the displacement part 303. The end of the rotating part 503 away from the connecting post 504 extends to the outside of the fixed cover 501. The nozzle 402 is fixedly installed at the end of the rotating part 503 outside the fixed cover 501. In this way, when the displacement part 303 moves, it can push the rotating part 503 to rotate through the connecting post 504, thereby causing the rotating part 503 to drive the nozzle 402 to change the spray direction.

[0046] The radial sidewall of the displacement member 303 is provided with a through groove 305. One end of the rotating member 503 passes through the displacement member 303 through the through groove 305. When the displacement member 303 moves towards the elastic member 304, the connecting post 504 of the rotating member 503 can be pressed through the through groove 305, causing the rotating member 503 to rotate, thereby adjusting the spray direction of the nozzle 402, increasing the cleaning area of ​​the nozzle 402, and further improving the cleaning effect. When the elastic member 304 pushes the displacement member 303 to reset, the displacement member 303 can push the rotating member 503 to rotate and reset through the through groove 305. As the displacement member 303 moves linearly back and forth, the rotating member 503 can rotate continuously. During this process, the spray direction of the nozzle 402 can be continuously adjusted, thereby increasing the spray area of ​​the nozzle 402.

[0047] The inside of the coal chutes 101 is also equipped with a wear-resistant mechanism 600. The wear-resistant mechanism 600 includes a rubber layer 601 that is attached to the inner wall of the coal chutes 101, and a wear-resistant layer 602 that is attached to the rubber layer 601. The rubber layer 601 and the wear-resistant layer 602 are fixed to the inner wall of the coal chutes 101 by bolts. The wear-resistant layer 602 is made of high-chromium wear-resistant lining plate and uses wear-resistant and impact-resistant lining material. It has the characteristics of high hardness and low friction coefficient, which can effectively reduce the friction between coal and pipe wall and reduce wear.

[0048] The dual-channel design of this invention, with Channel A and Channel B angled at 55°, precisely separates and processes coal powder, small coal lumps, and large coal lumps according to their different physical characteristics. Large coal lumps, with their strong impact, can easily cause continuous impact on the conveyor belt if concentrated in a single channel, leading to accelerated wear and even belt misalignment. Channel B, with its 55° inclination, better matches the natural trajectory of falling large coal lumps, buffering the impact force through the inclination angle. Simultaneously, large coal lumps are transported separately through Channel B, avoiding mixing and accumulation with coal powder and small coal lumps, thus reducing the problem of excessive local load on the conveyor belt caused by concentrated gravity.

[0049] The B-channel is equipped with a 300-type vibratory mechanism that can promptly clear any blockages that may be caused by large coal chunks, ensuring a smooth descent and further reducing impact fluctuations caused by jamming.

[0050] Coal powder has a fine particle size and high viscosity. Small coal lumps easily carry coal powder. When the two are mixed and transported, they are very easy to adhere to the inner wall of the channel, forming residual accumulation. This not only affects the conveying efficiency, but may also cause blockage or spontaneous combustion risk due to long-term accumulation. Channel A is specially designed to transport coal powder and small coal lumps. With the help of a specially designed cleaning mechanism 400, efficient cleaning is achieved. The water distributor 401 and the rotatable nozzle 402 of the cleaning mechanism 400 form a three-dimensional flushing network. The high-pressure water flow can cover every corner of the inner wall of the channel and directly wash away the coal powder and small coal lumps that adhere to it.

[0051] The dual-channel design enables the physical separation of materials of different particle sizes, avoiding interference between large coal lumps and coal powder, as well as between small coal lumps. The impact kinetic energy of large coal lumps will not be transferred to easily adhering coal powder, and the stickiness of coal powder will not cause large coal lumps to clump together and block. Reducing blockage and residue means reducing the risk of equipment overload and local high temperature caused by material accumulation, which is especially suitable for scenarios with strict safety requirements such as coal mines and power plants.

[0052] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0053] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A multi-lane anti-blocking coal-reducing conveyor belt wear coal conveying device, characterized in that: Including, The coal falling mechanism (100) comprises at least two coal falling channels (101), and each coal falling channel (101) is provided with a coal outlet (102); The conveying belt (200) is arranged below the coal falling mechanism (100), and the position of the coal outlet (102) corresponds to the conveying belt (200); The rapping mechanism (300) and the cleaning mechanism (400) are installed on the coal falling mechanism (100), the rapping mechanism (300) is used for preventing the coal falling channel (101) from being blocked, and the cleaning mechanism (400) is used for cleaning the coal falling channel (101).

2. The multi-lane anti-blocking coal-reducing wear on conveyor belt coal conveying apparatus according to claim 1, characterized in that: The cleaning mechanism (400) comprises a water distributor (401) installed in the coal falling channel (101) and a nozzle (402) installed on the water distributor (401).

3. The multi-lane anti-blocking coal-reducing belt-wear coal conveying apparatus according to claim 1, characterized in that: The rapping mechanism (300) is a vibrator (301).

4. The plurality of passageways anti-blocking coal reduction belt wear coal conveying device according to claim 1, characterized in that: The rapping mechanism (300) comprises a driving member (302), a displacement member (303) connected with the driving member (302) and capable of moving, and an elastic member (304) connected with the displacement member (303), and the driving member (302) can periodically push the displacement member (303) to move and press the elastic member (304).

5. The plurality of passageways anti-blocking coal-reducing belt-wear coal conveying apparatus of claim 4, wherein: The cleaning mechanism (400) comprises a nozzle (402) which is rotatably installed in the coal falling channel (101) and can adjust the spray angle of the nozzle (402) when the displacement member (303) moves.

6. The plurality of passageways anti-blocking coal-reducing belt-wear coal conveying apparatus of claim 5, wherein: The coal falling mechanism (100) is provided with a fixed cover (501) in the coal falling channel (101), the fixed cover (501) is installed with a fixed shaft (502), the fixed shaft (502) is installed with a rotating member (503), and the nozzle (402) is installed on the rotating member (503). The rotating member (503) is connected with the displacement member (303), and the displacement member (303) can drive the rotating member (503) to rotate when the displacement member (303) moves.

7. The plurality of passageways anti-blocking coal reduction belt wear reducing coal conveying apparatus of claim 6, wherein: A through groove (305) is formed in the radial side wall of the displacement member (303), and one end of the rotating member (503) penetrates the displacement member (303) through the through groove (305).

8. The plurality of passageways anti-blocking coal-reducing belt-wear coal conveying apparatus as claimed in claim 4, wherein: The driving member (302) is a motor, a rotating ring (306) is installed on the output shaft of the driving member (302), a resisting column (307) is installed on the rotating ring (306), a pressure receiving arc body (308) is arranged on the radial inner wall of the displacement member (303), and when the rotating ring (306) rotates, the resisting column (307) is pressed to press the pressure receiving arc body (308), so that the displacement member (303) is pushed to move.

9. The plurality of passageways anti-blocking coal-reducing belt- abrasion coal conveying apparatus of claim 1, wherein: The coal falling channel (101) is further provided with a wear-resistant mechanism (600).

10. The plurality of passageways anti-blocking coal-reducing belt- abrasion coal conveying apparatus of claim 9, wherein: The wear-resistant mechanism (600) comprises a rubber layer (601) attached to the inner wall of the coal falling channel (101) and a wear-resistant layer (602) attached to the rubber layer (601). The rubber layer (601) and the wear-resistant layer (602) are fixed on the inner wall of the coal falling channel (101) by bolts.

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