Anti-clogging device and method for belt chute

Abstract

This invention belongs to the field of material conveying technology and discloses a belt chute anti-clogging device and method, including a conveying assembly and an anti-clogging mechanism. The conveying assembly includes a feeding belt conveyor and a conveying chute. The conveying chute is hollow inside to form a conveying cavity. The conveying chute has an inlet and an outlet communicating with the conveying cavity. The inlet is located facing the discharge end of the feeding belt conveyor. The anti-clogging mechanism includes a crushing assembly and a clearing assembly. The crushing assembly is located on the discharge end side of the feeding belt conveyor and includes a support frame fixed to the inner wall of the conveying cavity. A crushing rotary cutter is provided on the support frame. The clearing assembly includes a driving component and a clearing chain. The driving component is driven by the clearing chain to drive the clearing chain to enter and exit the conveying cavity along the clearing port of the conveying chute. This device can effectively avoid the problem of conveying chute clogging and improve the anti-clogging performance of the device.

Description

Technical Field

[0001] This invention relates to the field of material conveying technology, and in particular to a belt chute anti-clogging device and method. Background Technology

[0002] Existing belt chutes, whether vertical or inclined, are prone to clogging. There are two main reasons for this: first, wear or insufficient smoothness of the chute walls causes the material discharge rate to be slower than the amount of material entering the chute, leading to clogging; second, excessive material entering the chute prevents the discharge rate from keeping up with the flow, causing clogging. Once clogging occurs, the material continues to be conveyed towards the chute due to the inertia of the feed belt, causing compression within the material. This compression eventually leads to clogging.

[0003] Currently, there are two methods for handling this issue. One is to manually tap the chute with tools or use a vibrator to loosen the material inside and allow it to drain out on its own. The other is to create an access port on the outside of the chute. After opening the access port, tools are used to tap the material inside or some of the material is cleared out to loosen it, allowing it to drain out of the chute outlet by its own weight. However, the access ports currently used for chutes are difficult to seal completely. When the material is coke, ore, or similar materials, dust can easily be generated and spray out from the gaps in the access port, affecting the surrounding environment. Relying solely on manual tapping or vibrating and clearing through the access port is only suitable for minor blockages. When the blockage is severe, direct tapping can cause small particles to fall into the chute and cause even more serious blockages. Both methods are time-consuming and extremely labor-intensive, and may not be able to resolve severe blockages in the belt conveyor chute in a short time, thus seriously affecting operational efficiency and progress. Summary of the Invention

[0004] The purpose of this invention is to provide a belt chute anti-clogging device and method, which can effectively avoid the problem of conveyor chute blockage and improve the anti-clogging performance of the device.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] On the one hand, a belt chute anti-clogging device is provided, including a conveying assembly and an anti-clogging mechanism. The conveying assembly includes a feeding belt conveyor and a conveying chute. The conveying chute is hollow inside to form a conveying cavity. The conveying chute is provided with an inlet and an outlet that communicate with the conveying cavity. The inlet is located facing the unloading end of the feeding belt conveyor.

[0007] The anti-clogging mechanism includes a crushing component and a clearing component. The crushing component is located on the discharge end side of the feed belt conveyor and includes a support frame fixed to the inner wall of the conveying chamber. A crushing rotary blade is provided on the support frame. The clearing component includes a driving component and a clearing chain. The driving component is connected to the clearing chain to drive the clearing chain to enter and exit the conveying chamber along the clearing port of the conveying chute.

[0008] In one embodiment, the unclogging chain is provided with a plurality of unclogging blocks distributed along the length of the unclogging chain, and the overall size of the unclogging blocks gradually decreases along the direction of movement.

[0009] In one embodiment, the unblocking block includes a penetrating portion and a colliding portion, the size of the penetrating portion being smaller than that of the colliding portion, and a stepped surface being formed at the connection between the penetrating portion and the colliding portion.

[0010] In one embodiment, the penetrating portion is configured as a cone or a frustum, the colliding portion is configured as a frustum, the bottom surface of the penetrating portion is connected to the top surface of the colliding portion, and the bottom surface area of ​​the penetrating portion is smaller than the top surface area of ​​the colliding portion.

[0011] In one embodiment, the belt chute anti-clogging device further includes a controller and a sensing component, the sensing component including a first material sensor and a second material sensor, the first material sensor being disposed on the feeding end side of the feeding belt conveyor, and the second material sensor being disposed on the discharging end side of the conveying chute.

[0012] The controller is connected to the sensing component, the conveying component, and the anti-blocking mechanism via signals.

[0013] In one embodiment, the conveying assembly further includes a discharge belt conveyor, the discharge port being disposed toward the discharge belt conveyor, and the second material sensor being disposed on the side of the discharge belt conveyor adjacent to the discharge port.

[0014] In one embodiment, a dustproof rubber sheet is provided at the drain opening, the dustproof rubber sheet comprising a plurality of rubber units arranged around the drain opening, the rubber units being petal-shaped.

[0015] In one embodiment, the conveying chute is further provided with a circulation opening, and the unblocking chain moves cyclically along the unblocking opening and the circulation opening.

[0016] On the other hand, a method for preventing belt chute blockage is also provided, which provides a belt chute anti-blockage device as described above, including the following steps:

[0017] The material is placed on the feed belt conveyor and transported to the feed inlet of the conveying chute by the feed belt conveyor;

[0018] The crushing assembly is activated, and the crushing blade crushes and cuts the material, turning large pieces of material into smaller pieces.

[0019] After being crushed and cut by the rotary crusher, the material enters the conveying chamber through the feed inlet and is discharged from the conveying chute through the discharge outlet.

[0020] When material becomes blocked in the conveying chamber, the driving component is activated to drive the unblocking chain to move upward along the unblocking opening and break up the material so that a gap is formed in the conveying chamber.

[0021] In one embodiment, based on the difference in the quantity of material detected by the first material sensor and the second material sensor, when the difference reaches a certain value, it is determined that the conveying chute is blocked, and the driving component is controlled to drive the unblocking chain to move.

[0022] The beneficial effects of this invention are:

[0023] This invention discloses an anti-clogging device for a belt chute. By installing a crushing component at the discharge end of the feed belt conveyor and the inlet of the conveying chute, large pieces of material are broken up, effectively preventing blockage caused by large pieces of material and improving the anti-clogging performance of the device. Furthermore, when blockage occurs, a clearing component is also provided. A drive member drives a clearing chain upwards along the clearing opening, breaking up the material and creating gaps within the conveying chamber. With these gaps, the material no longer compresses and continues to fall naturally, preventing further blockage. The drive member then drives the clearing chain back to its initial position, and the entire device returns to normal conveying mode. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the anti-blocking device for the belt chute (normal conveying state) in one embodiment;

[0025] Figure 2 yes Figure 1 Enlarged structural diagram of section A in the middle;

[0026] Figure 3 This is a schematic diagram of the anti-blocking device (blocked state) of the belt chute in one embodiment;

[0027] Figure 4 This is a schematic diagram of the anti-blockage device for the belt chute (unblocking operation state) in one embodiment;

[0028] Figure 5This is a schematic diagram of the unblocking block in one embodiment;

[0029] Figure 6 This is a schematic diagram of the dredging opening in one embodiment;

[0030] Figure 7 This is a schematic diagram of the anti-clogging device (with a circulation opening) for the belt chute in one embodiment.

[0031] In the picture:

[0032] 110. Feed belt conveyor; 120. Conveying chute; 121. Conveying chamber; 122. Feed inlet; 123. Discharge outlet; 124. Unclogging outlet; 125. Dustproof rubber sheet; 1251. Rubber sheet unit; 126. Circulation opening; 127. Dustproof curtain; 128. Dust removal pipe; 130. Discharge belt conveyor; 200. Crushing assembly; 210. Support frame; 220. Crushing rotary cutter; 300. Unclogging assembly; 310. Drive component; 320. Unclogging chain; 330. Unclogging block; 331. Penetrating part; 332. Collision part; 333. Step surface; 410. First material sensor; 420. Second material sensor; 500. Material; 600. Gap. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0034] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0037] like Figures 1 to 7 As shown, this embodiment of a belt chute anti-clogging device includes a conveying assembly and an anti-clogging mechanism. The conveying assembly includes a feeding belt conveyor 110 and a conveying chute 120. The conveying chute 120 is hollow inside to form a conveying cavity 121. The conveying chute 120 is provided with an inlet 122 and an outlet 123 communicating with the conveying cavity 121. The inlet 122 is positioned facing the discharge end of the feeding belt conveyor 110. The anti-clogging mechanism includes a crushing assembly 200 and a unblocking mechanism. Component 300, the crushing component 200 is set on the discharge end side of the feed belt conveyor 110. The crushing component 200 includes a support frame 210 fixed to the inner wall of the conveying chamber 121. The support frame 210 is provided with a crushing rotary cutter 220. The unblocking component 300 includes a driving component 310 and an unblocking chain 320. The driving component 310 is connected to the unblocking chain 320 to drive the unblocking chain 320 to enter and exit the conveying chamber 121 along the unblocking port 124 of the conveying chute 120.

[0038] In this embodiment, by setting a crushing component 200 at the discharge end of the feeding belt conveyor 110 and the inlet 122 of the conveying chute 120 to crush large pieces of material 500, the problem of large pieces of material 500 easily causing blockage of the conveying chute 120 can be effectively avoided, thus improving the anti-blocking performance of the device. In addition, when a blockage occurs, only the unblocking component 300 drives the unblocking chain 320 through the driving component 310 to move the unblocking block 330 upward along the unblocking opening 124 and knock away the material 500, so that the material 500 in the conveying chamber 121 forms a certain gap 600. After the gap 600 is formed between the materials 500, they are no longer squeezed and continue to fall naturally. At this time, the material 500 in the conveying chamber 121 no longer forms a blockage. The driving component 310 drives the unblocking chain 320 and the unblocking block 330 back to the initial position, and the whole device returns to the normal conveying mode.

[0039] In actual operation, the driving component 310 is set as a winch to drive and rewind the unblocking chain 320. Of course, other driving components 310, such as hoisting equipment, can also be used, as long as they can drive the unblocking chain 320 to achieve the reciprocating motion of the unblocking chain 320. Such designs are all within the protection scope of this invention.

[0040] Furthermore, a dust curtain 127 is installed at the feed inlet 122 to prevent the dust generated during the crushing and cutting of material 500 by the rotating crusher 220 from being discharged to the outside through the feed inlet 122 and polluting the working environment. In addition, a dust removal pipe 128 is installed on the side of the conveying chute 120 near the feed inlet 122. The dust removal pipe 128 is connected to an external dust removal device (not shown) to remove dust from the material 500 in the conveying chute 120, thereby preventing the material 500 from generating a large amount of dust and causing environmental pollution during the conveying process in the conveying chute 120.

[0041] In one embodiment, a plurality of unblocking blocks 330 are provided on the unblocking chain 320 along the length direction of the unblocking chain 320. The overall size of the unblocking block 330 gradually decreases along the direction of movement, so that when the unblocking block 330 moves with the unblocking chain 320, the smaller end of the unblocking block 330 can easily pass through the gap of the material 500 to push the material 500 away, thereby improving the smoothness of movement of the unblocking chain 320 and the unblocking block 330 and avoiding movement jamming or even jamming.

[0042] In one embodiment, such as Figure 5As shown, the unblocking block 330 includes a penetrating portion 331 and a collision portion 332. The size of the penetrating portion 331 is smaller than that of the collision portion 332, and a stepped surface 333 is formed at the connection between the penetrating portion 331 and the collision portion 332. Specifically, the penetrating portion 331 is configured as a cone or frustum shape, and the collision portion 332 is configured as a frustum shape. The bottom surface of the penetrating portion 331 is connected to the top surface of the collision portion 332, and the bottom surface area of ​​the penetrating portion 331 is smaller than the top surface area of ​​the collision portion 332. During the movement of the unblocking block 330, the unblocking block 330, which is approximately cone-shaped or frustum-shaped, can better penetrate the material 500. Furthermore, the stepped surface 333 at the connection between the penetrating portion 331 and the collision portion allows for a certain amount of collision between the unblocking block 330 and the material 500, facilitating the movement of the material 500. This causes a change in the relative position of the material 500, reducing the mutual compression between the material 500 and allowing it to continue falling naturally, thereby achieving the effect of unblocking the material 500.

[0043] In actual operation, the unblocking chain 320 and the unblocking block 330 are located at the end of the conveying chamber 121 away from the feed inlet 122. In normal conveying mode, when the material 500 is conveyed normally along the conveying chamber 121, it will not collide with the unblocking chain 320 and the unblocking block 330, thus avoiding wear on the unblocking chain 320 and the unblocking block 330 and improving their service life.

[0044] In one embodiment, the belt chute anti-blocking device further includes a controller (not shown) and a sensing component. The sensing component includes a first material sensor 410 and a second material sensor 420. The first material sensor 410 is disposed on the feeding end side of the feed belt conveyor 110, and the second material sensor 420 is disposed on the discharging end side of the conveying chute 120. The feeding and discharging status of the material 500 is determined by the first material sensor 410 and the second material sensor 420, thereby determining whether the material 500 is blocked during the conveying process in the intermediate conveying chute 120.

[0045] The controller is connected to the sensing component, conveying component, and anti-blocking mechanism via signals. It receives material 500 information detected by the sensing component to control the conveying component and the anti-blocking mechanism. Specifically, when the quantity of material 500 detected by the first material sensor 410 and the quantity detected by the second material sensor 420 reach a first difference, it indicates that the conveying chute 120 is partially blocked but not completely blocked. In this case, the controller controls the feed belt conveyor 110 to reduce the conveying speed of the material 500 to prevent complete blockage in the conveying chute 120. When the second material sensor 420 detects no material 500 or the quantity detected by the second material sensor 420 and the first material sensor 410 reaches a second difference, it indicates that the conveying chute 120 is substantially completely blocked. In this case, the controller controls the drive component 310 to start, driving the unblocking chain 320 to unblock the material 500 in the conveying chute 120.

[0046] In one embodiment, the conveying assembly further includes a discharge belt conveyor 130, with a discharge port 123 facing the discharge belt conveyor 130, and a second material sensor 420 disposed on the side of the discharge belt conveyor 130 adjacent to the discharge port 123. The discharge belt conveyor 130 is used to retransfer the material 500 output from the conveying chute 120, and the second material sensor 420 detects the quantity of material 500 discharged from the conveying chute 120, which can be compared with the quantity of material 500 detected by the first material sensor 410 disposed on the feed belt conveyor 110.

[0047] In one embodiment, such as Figure 6 As shown, a dustproof rubber sheet 125 is provided at the drain opening 124. The dustproof rubber sheet 125 includes multiple rubber units 1251 arranged around the drain opening 124. The rubber units 1251 are petal-shaped. The multiple rubber units 1251 can fit well with the drain chain 320. Without affecting the passage of the drain chain 320, they can also seal and prevent dust.

[0048] In one embodiment, such as Figure 7 As shown, the conveying chute 120 is also provided with a circulation opening 126. The unblocking chain 320 circulates along the unblocking opening 124 and the circulation opening 126. The continuous circulating movement of the unblocking chain 320 impacts the material 500, causing a change in the compression relationship between the materials 500, thereby creating a certain gap 600 between the materials and allowing them to fall naturally, achieving the effect of unblocking the blockage of the material 500. Furthermore, the circulation opening 126 is also provided with a dustproof rubber sheet 125 with the same structure as the unblocking opening 124 to prevent the smoke and dust generated by the material 500 from being discharged through the circulation opening 126 and to prevent dust pollution.

[0049] On the other hand, a method for preventing belt chute blockage is also provided, which provides a belt chute anti-blockage device as described above, including the following steps:

[0050] The material 500 is placed on the feeding belt conveyor 110 and the material 500 is conveyed to the feed inlet 122 of the conveying chute 120 by the feeding belt conveyor 110;

[0051] Start the crushing assembly 200, and crush and cut the material 500 through the crushing rotary cutter 220, cutting large pieces of material 500 into small pieces of material 500, thereby reducing the possibility of material 500 clogging.

[0052] After being crushed and cut by the crushing rotary cutter 220, material 500 enters the conveying chamber 121 through the feed inlet 122 and is discharged from the conveying chute 120 through the discharge outlet 123.

[0053] When the material 500 becomes blocked in the conveying chamber 121, the driving component 310 is activated to drive the unblocking chain 320 to move upward along the unblocking port 124 and knock the material 500 apart so that a gap 600 is formed in the conveying chamber 121, so that the material 500 no longer squeezes each other and falls down naturally.

[0054] In one embodiment, based on the numerical difference between the quantity of material 500 detected by the first material sensor 410 and the second material sensor 420, when the numerical difference reaches a certain value, it is determined that the conveying chute 120 is blocked, and the drive component 310 is controlled to drive the unblocking chain 320 to move. Specifically, when the quantity of material 500 detected by the first material sensor 410 and the quantity of material 500 detected by the second material sensor 420 reaches a first difference value, it indicates that the conveying chute 120 is blocked to a certain extent but not completely blocked. At this time, the controller controls the feeding belt conveyor 110 to reduce the conveying speed of the material 500 to avoid the complete blockage of the conveying chute 120. When the second material sensor 420 fails to detect the quantity of material 500 or the quantity of material 500 detected by the second material sensor 420 and the first material sensor 410 reaches the second difference value, it indicates that the conveying chute 120 is basically completely blocked. At this time, the controller controls the drive component 310 to start and drive the unblocking chain 320 to move, so as to unblock the material 500 in the conveying chute 120.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A belt chute anti-blocking device characterized by, The utility model relates to a kind of material conveying device, including: Conveying assembly, the conveying assembly includes feed belt conveyor (110) and conveying chute (120), the conveying cavity (121) is formed in the hollow setting inside the conveying chute (120), the conveying chute (120) is equipped with feeding port (122) and discharge port (123) with the conveying cavity (121) communication, the feeding port (122) is set to the discharge end side of the feed belt conveyor (110); Anti-blocking mechanism, the anti-blocking mechanism includes broken material assembly (200) and dredging assembly (300), the broken material assembly (200) is set to the discharge end side of the feed belt conveyor (110), broken material assembly (200) includes support frame (210) fixed in the inner wall of the conveying cavity (121), the support frame (210) is equipped with broken rotating knife (220), the dredging assembly (300) includes drive member (310) and dredging chain (320), the drive member (310) is transmission connection with the dredging chain (320) to drive the dredging chain (320) in and out the conveying cavity (121) along the dredging port (124) of the conveying chute (120); The dredging chain (320) is equipped with multiple dredging blocks (330) distributed along the length direction of the dredging chain (320), the overall size of the dredging block (330) gradually decreases along the direction of motion; The dredging block (330) includes penetration part (331) and collision part (332), the size of the penetration part (331) is less than the collision part (332), and the connection of the penetration part (331) and the collision part (332) forms step surface (333); The penetration part (331) is set to be conical or circular truncated cone, the collision part (332) is set to be circular truncated cone, the bottom surface of the penetration part (331) is connected with the top surface of the collision part (332), and the bottom surface area of the penetration part (331) is less than the top surface area of the collision part (332).

2. The belt chute anti-jamming device of claim 1, wherein, It also includes controller and sensing assembly, the sensing assembly includes first material sensor (410) and second material sensor (420), the first material sensor (410) is set to the discharge end side of the feed belt conveyor (110), and the second material sensor (420) is set to the discharge end side of the conveying chute (120); The controller is signal connected with the sensing assembly, conveying assembly and anti-blocking mechanism respectively.

3. The belt chute anti-jamming device of claim 2, wherein, The conveying assembly further includes discharge belt conveyor (130), the discharge port (123) is set to the discharge belt conveyor (130), and the second material sensor (420) is set to the side adjacent to the discharge port (123) of the discharge belt conveyor (130).

4. The belt chute anti-jamming device according to any one of claims 1 to 3, characterized in that, Dustproof rubber (125) is arranged at the dredging port (124), the dustproof rubber (125) includes multiple rubber units (1251) arranged around the dredging port (124), and the rubber unit (1251) is petal-shaped.

5. The belt chute anti-jamming device of any one of claims 1 to 3, wherein, The conveying chute (120) is further provided with a circulating opening (126), and the dredging chain (320) moves along the dredging opening (124) and the circulating opening (126).

6. A method of preventing a belt chute from being blocked, characterized by, The belt chute anti-blocking device according to any one of claims 1 to 5 comprises the following steps: Placing the material (500) on the feeding belt conveyor (110), and conveying the material (500) to the feeding opening (122) of the conveying chute (120) through the feeding belt conveyor (110); Starting the crushing assembly (200) to crush and cut the material (500) through the crushing rotary cutter (220) to cut the large pieces of material (500) into small pieces of material (500); After the material (500) is crushed and cut by the crushing rotary cutter (220), the material (500) enters the conveying cavity (121) from the feeding opening (122) and is discharged from the conveying chute (120) through the discharging opening (123); When the material (500) is blocked in the conveying cavity (121), the driving member (310) is started to drive the dredging chain (320) to move upward along the dredging opening (124) and hit the material (500) to form a gap (600) in the conveying cavity (121).

7. The belt chute anti-jamming method of claim 6, wherein, According to the value difference of the number of materials (500) detected by the first material sensor (410) and the second material sensor (420), when the value difference reaches a certain value, it is judged that the conveying chute (120) is blocked, and the driving member (310) is controlled to drive the dredging chain (320) to move.

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