Anti-blocking device and method for belt chute

Abstract

The invention belongs to the technical field of material conveying, and discloses a belt chute anti-blocking device and method.The belt chute anti-blocking device comprises a conveying assembly and an anti-blocking mechanism, the conveying assembly comprises a feeding belt conveyor and a conveying chute, and the interior of the conveying chute is hollow to form a conveying cavity; the conveying chute is provided with a feeding port and a discharging port which are communicated with the conveying cavity, and the feeding port is arranged towards one side of the discharging end of the feeding belt conveyor. The anti-blocking mechanism comprises a material crushing assembly and a dredging assembly, the material crushing assembly is arranged on one side of the discharging end of the conveying belt and comprises a supporting frame fixed to the inner wall of the conveying cavity, crushing rotating cutters are arranged on the supporting frame, and the dredging assembly comprises a driving component and a dredging chain. The driving component is in transmission connection with the dredging chain so as to drive the dredging chain to enter and exit from the conveying cavity along the dredging opening. According to the device, the problem that the conveying chute is blocked can be effectively solved, and the anti-blocking performance of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of material conveying, and in particular to a belt chute anti-blocking device and method. Background Art

[0002] Existing belt chutes, whether vertical or inclined, will become blocked. There are two main reasons for the blockage. One is that the inside of the chute is worn or the chute wall is not smooth enough, resulting in a lower material discharge speed than the amount of material entering the chute, causing the chute to become blocked. The second is that the amount of material entering the chute is too large, resulting in a slower material discharge speed than the chute, causing the chute to become blocked. When the chute is blocked, the material entering the chute will continue to be transported toward the chute due to the inertia of the feed belt within a certain period of time, resulting in squeezing of the materials in the chute. After squeezing to a certain extent, the chute will become blocked.

[0003] There are two current treatment methods. One is to knock the chute with tools or vibrate the chute with a vibrator to loosen the material in the chute and discharge it from the chute by itself. The other is to open an inspection port on the outside of the chute, open the inspection port, hit the material in the inspection port with tools or clean out part of the material at the inspection port to loosen the material, and then discharge it from the chute outlet by its own gravity. However, the inspection port of the current chute is difficult to be completely sealed. When the material is coke, ore and other materials, it is easy to generate dust from the gap of the inspection port, affecting the surrounding environmental sanitation. The method of relying solely on human knocking or vibrating with a vibrator and cleaning from the inspection port is only suitable for situations with a mild degree of blockage. When the blockage is serious, direct knocking will cause some small particles of material to fall into the large particles of material in the chute, causing more serious blockage. The above two methods take a long time to handle and the labor intensity of manual processing is extremely high. It is even difficult to handle the serious blockage of the belt chute in a short time, which seriously affects the operation efficiency and operation process. Summary of the invention

[0004] The object of the present invention is to provide a belt chute anti-blocking device and method, which can effectively avoid the problem of conveying chute blockage and improve the anti-blocking performance of the device.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] On the one hand, a belt chute anti-blocking device is provided, comprising a conveying assembly and an anti-blocking mechanism, wherein the conveying assembly comprises a feeding belt conveyor and a conveying chute, wherein the conveying chute is hollow inside to form a conveying cavity, and the conveying chute is provided with a feeding port and a discharging port connected to the conveying cavity, wherein the feeding port is arranged toward a discharging end of the feeding belt conveyor;

[0007] The anti-blocking mechanism includes a crushing component and a dredging component. The crushing component is arranged on one side of the discharge end of the conveyor belt. The crushing component includes a support frame fixed to the inner wall of the conveying cavity. The support frame is provided with a crushing rotary knife. The dredging component includes a driving component and a dredging chain. The driving component is connected to the dredging chain to drive the dredging chain to enter and exit the conveying cavity along the dredging port.

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

[0009] In one embodiment, the dredging block includes a penetration portion and a collision portion, the penetration portion is smaller than the collision portion, and a step surface is formed at the connection between the penetration portion and the collision portion.

[0010] In one embodiment, the penetration portion is configured to be conical or truncated cone-shaped, the collision portion is configured to be truncated cone-shaped, the bottom surface of the penetration portion is connected to the top surface of the collision portion, and the bottom surface area of ​​the penetration portion is smaller than the top surface area of ​​the collision portion.

[0011] In one embodiment, the belt chute anti-blocking device further includes a controller and a sensing component, wherein the sensing component includes a first material sensor and a second material sensor, wherein the first material sensor is arranged at a side of a discharge end of the feed belt conveyor, and the second material sensor is arranged at a side of a discharge end of the conveying chute;

[0012] The controller is respectively connected with the sensing component, the conveying component and the anti-blocking mechanism by signal.

[0013] In one of the embodiments, the conveying assembly further includes a discharging belt conveyor, the discharging port is arranged toward the discharging belt conveyor, and the second material sensor is arranged on a side of the discharging belt conveyor adjacent to the discharging port.

[0014] In one of the embodiments, a dustproof rubber is provided at the dredging opening, and the dustproof rubber includes a plurality of rubber units arranged around the dredging opening, and the rubber units are in a petal shape.

[0015] In one of the embodiments, a circulation opening is further provided on the conveying chute, and the dredging chain circulates along the dredging opening and the circulation opening.

[0016] On the other hand, a belt chute anti-blocking method is also provided, providing a belt chute anti-blocking device as described above, comprising the following steps:

[0017] Placing the material on the feeding belt conveyor, and conveying the material to the feeding port of the conveying chute through the feeding belt conveyor;

[0018] The crushing component is started to crush and cut the material by the crushing rotary cutter, so as to cut the large pieces of material into small pieces;

[0019] After being crushed and cut by the crushing rotary cutter, the material enters the conveying cavity from the feed inlet and is discharged from the conveying chute through the discharge outlet;

[0020] When the material is blocked in the conveying cavity, the driving component is started to drive the dredging chain to move upward along the dredging port and knock the material away so that a gap is formed in the conveying cavity.

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

[0022] Beneficial effects of the present invention:

[0023] The belt chute anti-blocking device of the present invention can effectively avoid the problem of large pieces of material easily causing the conveying chute to be blocked by large pieces of material by setting a crushing component at the unloading end of the feeding belt conveyor and the feeding port of the conveying chute, thereby improving the anti-blocking performance of the device. In addition, when blockage occurs, a dredging component is also provided, which drives the dredging chain to move upward along the dredging port and knock away the material through the driving component, so that a certain gap is formed between the materials in the conveying cavity. After the gap is generated between the materials, they are no longer squeezed and continue to fall naturally. At this time, the materials in the conveying cavity no longer form a blockage, and the driving component drives the dredging chain to fall back to the initial position, and the entire device resumes the normal conveying mode. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 yes Figure 1 The enlarged structural diagram of the middle A part;

[0026] Figure 3 1 is a schematic structural diagram of a belt chute anti-blocking device (blocking state) in one embodiment;

[0027] Figure 4 It is a structural schematic diagram of a belt chute anti-blocking device (unblocking operation state) in one of the embodiments;

[0028] Figure 5is a schematic diagram of the structure of a dredging block in one of the embodiments;

[0029] Figure 6 is a schematic diagram of the structure of the dredging port in one of the embodiments;

[0030] Figure 7 It is a schematic structural diagram of a belt chute anti-blocking device (provided with a circulation opening) in one of the embodiments.

[0031] In the figure:

[0032] 110. Feeding belt conveyor; 120. Conveying chute; 121. Conveying cavity; 122. Feeding port; 123. Discharging port; 124. Dredging port; 125. Dust-proof rubber; 1251. Rubber unit; 126. Circulation opening; 127. Dust-proof curtain; 128. Dust removal pipe; 130. Discharging belt conveyor; 200. Crushing assembly; 210. Support frame; 220. Crushing rotary knife; 300. Dredging assembly; 310. Driving member; 320. Dredging chain; 330. Dredging block; 331. Penetrating part; 332. Collision part; 333. Step surface; 410. First material sensor; 420. Second material sensor; 500. Material; 600. Gap. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] like Figures 1 to 7 As shown, a belt chute anti-blocking device of the present embodiment includes a conveying component and an anti-blocking mechanism, the conveying component includes a feeding belt 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 a feeding port 122 and a discharging port 123 which are connected to the conveying cavity 121, the feeding port 122 is arranged toward the unloading end of the feeding belt 110; the anti-blocking mechanism includes a crushing component 200 and a dredging component 300, the crushing component 200 is arranged on the discharging end side of the conveyor belt, the crushing component 200 includes a support frame 210 fixed to the inner wall of the conveying cavity 121, the support frame 210 is provided with a crushing rotary knife 220, the dredging component 300 includes a driving component 310 and a dredging chain 320, the driving component 310 is transmission-connected with the dredging chain 320 to drive the dredging chain 320 to enter and exit the conveying cavity 121 along the dredging port 124.

[0038] In this embodiment, by setting the crushing assembly 200 at the unloading end of the feeding belt conveyor 110 and the feeding port 122 of the conveying chute 120 to break up the large pieces of material 500, it can effectively avoid the problem that the large pieces of material 500 easily cause the conveying chute 120 to be blocked, and improve the anti-blocking performance of the device. In addition, when blockage occurs, there is still only the dredging assembly 300, and the driving component 310 drives the dredging chain 320 to drive the dredging block 330 to move upward along the dredging port 124 and knock away the material 500, so that the material 500 in the conveying cavity 121 forms a certain gap 600. After the gap 600 is generated between the materials 500, they are no longer squeezed and continue to fall naturally. At this time, the material 500 in the conveying cavity 121 no longer forms a blockage, and the driving component 310 drives the dredging chain 320 and the dredging block 330 to fall back to the initial position, and the entire device resumes the normal conveying mode.

[0039] In actual operation, the driving component 310 is set as a winch to realize the driving and winding of the dredging chain 320. Of course, other driving components 310 such as hoist equipment can also be used. As long as it can drive the dredging chain 320 to realize the reciprocating motion of the dredging chain 320, such designs belong to the protection scope of the present invention.

[0040] Furthermore, a dust curtain 127 is provided at the feed port 122 to prevent smoke and dust generated by the crushing rotary cutter 220 from being discharged to the outside through the feed port 122 to pollute the working environment. In addition, a dust removal pipe 128 is provided on one side of the conveying chute 120 close to the feed port 122, and an external dust removal device (not shown) is connected through the dust removal pipe 128 to achieve dust removal of the material 500 in the conveying chute 120, so as to prevent the material 500 from generating a large amount of smoke and dust during the conveying process in the conveying chute 120, thereby causing environmental pollution.

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

[0042] In one embodiment, if Figure 5As shown, the dredging block 330 includes a penetration portion 331 and a collision portion 332. The size of the penetration portion 331 is smaller than that of the collision portion 332, and a step surface 333 is formed at the connection between the penetration portion 331 and the collision portion 332. Specifically, the penetration portion 331 is set to be conical or truncated cone, and the collision portion 332 is set to be truncated cone. The bottom surface of the penetration portion 331 is connected to the top surface of the collision portion 332, and the bottom surface area of ​​the penetration portion 331 is smaller than the top surface area of ​​the collision portion 332. During the movement of the dredging block 330, the dredging block 330, which is generally close to a conical or truncated cone shape, can better penetrate the material 500, and the step surface 333 set at the connection between the penetration portion 331 and the collision can cause a certain collision between the dredging block 330 and the material 500, which is convenient for driving the movement of the material 500, thereby changing the relative position between the materials 500, reducing the mutual extrusion relationship between the materials 500 and continuing to fall naturally, thereby achieving the effect of dredging the material 500.

[0043] In actual operation, the dredging chain 320 and the dredging block 330 are arranged at one end of the conveying chamber 121 away from the feed port 122. When the material 500 is normally conveyed along the conveying chamber 121 in the normal conveying mode, it will not hit the dredging chain 320 and the dredging block 330, which can avoid the wear of the dredging chain 320 and the dredging block 330 and improve the service life of the dredging chain 320 and the dredging block 330.

[0044] In one embodiment, the belt chute anti-blocking device also 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 arranged on the unloading end side of the feed belt 110, and the second material sensor 420 is arranged on the discharging end side of the conveying chute 120, and the first material sensor 410 and the second material sensor 420 are used to judge the feeding and discharging conditions of the material 500, thereby judging whether the material 500 is blocked during the conveying process in the intermediate conveying chute 120.

[0045] The controller is respectively connected to the sensing component, the conveying component and the anti-blocking mechanism by signal, and receives the information of the material 500 detected by the sensing component through the controller to control the conveying component and the anti-blocking mechanism. Specifically, when the amount of the material 500 detected by the first material sensor 410 and the amount of the material 500 detected by the second material sensor 420 reach a first difference, it means that a certain degree of blockage occurs in the conveying chute 120 but it is 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 situation of complete blockage in the conveying chute 120. When the second material sensor 420 cannot detect the amount of the material 500 or the amount of the material 500 detected by the second material sensor 420 and the first material sensor 410 reaches a second difference, it means that the conveying chute 120 is basically completely blocked. At this time, the controller controls the driving component 310 to start to drive the dredging chain 320 to move, and dredge the material 500 in the conveying chute 120.

[0046] In one embodiment, the conveying assembly further includes a discharge belt conveyor 130, the discharge port 123 is disposed toward the discharge belt conveyor 130, and the second material sensor 420 is disposed on a side of the discharge belt conveyor 130 adjacent to the discharge port 123. The discharge belt conveyor 130 is used to transport the material 500 output from the conveying chute 120 again, and the second material sensor 420 detects the amount of the material 500 when it is discharged from the conveying chute 120, so as to compare it with the amount of the material 500 detected by the first material sensor 410 disposed on the feed belt conveyor 110.

[0047] In one embodiment, if Figure 6 As shown, a dustproof rubber 125 is provided at the dredging opening 124. The dustproof rubber 125 includes a plurality of rubber units 1251 arranged around the dredging opening 124. The rubber units 1251 are in a petal shape. The plurality of rubber units 1251 can fit the dredging chain 320 well, and can also play a sealing role to prevent dust without affecting the passage of the dredging chain 320.

[0048] In one embodiment, if Figure 7 As shown, the conveying chute 120 is also provided with a circulation opening 126, and the dredging chain 320 circulates along the dredging opening 124 and the circulation opening 126. The dredging chain 320 continuously circulates and strikes the material 500, so that the extrusion relationship between the materials 500 changes, so that a certain gap 600 is generated between the borings and they 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 125 with the same structure as the dredging opening 124, so as to prevent the smoke and dust generated by the material 500 from being discharged through the circulation opening 126, thereby preventing dust from being raised.

[0049] On the other hand, a belt chute anti-blocking method is also provided, providing a belt chute anti-blocking device as described above, comprising the following steps:

[0050] The material 500 is placed on the feeding belt conveyor 110, and the feeding belt conveyor 110 conveys the material 500 to the feeding port 122 of the conveying chute 120;

[0051] The crushing assembly 200 is started to crush and cut the material 500 by the crushing rotary cutter 220, and the large piece of material 500 is cut into small pieces of material 500. The large piece of material 500 is crushed and cut into small pieces of material 500 by the crushing rotary cutter 220, thereby reducing the possibility of blockage of the material 500;

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

[0053] When the material 500 is blocked in the conveying chamber 121, the driving component 310 is started to drive the dredging chain 320 to move upward along the dredging port 124 and knock the material 500 away to form a gap 600 in the conveying chamber 121, so that the material 500 is no longer squeezed and falls naturally.

[0054] In one embodiment, according to the numerical difference between the amount of the 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 driving component 310 is controlled to drive the dredging chain 320 to move. Specifically, when the amount of the material 500 detected by the first material sensor 410 and the amount of the material 500 detected by the second material sensor 420 reach a first difference, it means 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 situation in which the conveying chute 120 is completely blocked. When the second material sensor 420 cannot detect the amount of material 500 or the amount of material 500 detected by the second material sensor 420 and the first material sensor 410 reaches a second difference, it means that the conveying chute 120 is basically completely blocked. At this time, the controller controls the driving component 310 to start and drive the dredging chain 320 to move, so as to dredge 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 embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A belt chute anti-blocking device, characterized in that: include: A conveying assembly, the conveying assembly comprising a feeding belt conveyor (110) and a conveying chute (120), the conveying chute (120) being hollow inside to form a conveying cavity (121), the conveying chute (120) being provided with a feeding port (122) and a discharging port (123) which are in communication with the conveying cavity (121), the feeding port (122) being arranged toward a discharging end of the feeding belt conveyor (110); The anti-blocking mechanism comprises a crushing component (200) and a dredging component (300), wherein the crushing component (200) is arranged on one side of the discharge end of the conveyor belt, the crushing component (200) comprises a support frame (210) fixed to the inner wall of the conveying cavity (121), and a crushing rotary knife (220) is arranged on the support frame (210), and the dredging component (300) comprises a driving component (310) and a dredging chain (320), wherein the driving component (310) is transmission-connected to the dredging chain (320) to drive the dredging chain (320) to enter and exit the conveying cavity (121) along the dredging opening (124).

2. The belt chute anti-blocking device according to claim 1, characterized in that: The dredging chain (320) is provided with a plurality of dredging blocks (330) distributed along the length direction of the dredging chain (320), and the overall size of the dredging blocks (330) gradually decreases along the moving direction.

3. The belt chute anti-blocking device according to claim 2, characterized in that: The dredging block (330) comprises a penetration portion (331) and a collision portion (332); the penetration portion (331) is smaller than the collision portion (332); and a step surface (333) is formed at the connection between the penetration portion (331) and the collision portion (332).

4. The belt chute anti-blocking device according to claim 3, characterized in that: The penetration portion (331) is configured to be conical or truncated cone-shaped, the collision portion (332) is configured to be truncated cone-shaped, the bottom surface of the penetration portion (331) is connected to the top surface of the collision portion (332), and the bottom surface area of ​​the penetration portion (331) is smaller than the top surface area of ​​the collision portion (332).

5. The belt chute anti-blocking device according to any one of claims 1 to 4, characterized in that: It also includes a controller and a sensing component, wherein the sensing component includes a first material sensor (410) and a second material sensor (420), wherein the first material sensor (410) is arranged on the unloading end side of the feeding belt conveyor (110), and the second material sensor (420) is arranged on the discharging end side of the conveying chute (120); The controller is respectively connected with the sensing component, the conveying component and the anti-blocking mechanism by signal.

6. The belt chute anti-blocking device according to claim 5, characterized in that: The conveying assembly further comprises a discharge belt conveyor (130), the discharge port (123) is arranged toward the discharge belt conveyor (130), and the second material sensor (420) is arranged on a side of the discharge belt conveyor (130) adjacent to the discharge port (123).

7. The belt chute anti-blocking device according to any one of claims 1 to 4, characterized in that: A dustproof rubber (125) is provided at the dredging opening (124), and the dustproof rubber (125) comprises a plurality of rubber units (1251) arranged around the dredging opening (124), and the rubber units (1251) are in a petal shape.

8. The belt chute anti-blocking device according to any one of claims 1 to 4, characterized in that: The conveying chute (120) is also provided with a circulation opening (126), and the dredging chain (320) circulates along the dredging opening (124) and the circulation opening (126).

9. A belt chute anti-blocking method, characterized in that: A belt chute anti-blocking device according to any one of claims 1 to 8 is provided, comprising the following steps: Placing the material (500) on the feeding belt conveyor (110), and conveying the material (500) to the feeding port (122) of the conveying chute (120) through the feeding belt conveyor (110); The crushing assembly (200) is started to crush and cut the material (500) by the crushing rotary cutter (220), so as to cut the large piece of material (500) into small pieces of material (500); After being crushed and cut by the crushing rotary cutter (220), the material (500) enters the conveying cavity (121) from the feed port (122) and is discharged from the conveying chute (120) through the discharge port (123); When the material (500) is blocked in the conveying chamber (121), the driving component (310) is started to drive the dredging chain (320) to move upward along the dredging opening (124) and knock the material (500) away so that a gap (600) is formed in the conveying chamber (121).

10. The belt chute anti-blocking method according to claim 9, characterized in that: According to the numerical difference between the quantities of the materials (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 driving component (310) is controlled to drive the dredging chain (320) to move.

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