Anti-falling structure for continuous belt conveyor to transfer belt conveyor

Abstract

The application discloses a kind of for continuous belt conveyor to transfer belt conveyor anti-falling structure, it is related to bulk material conveying technical field, including guide chute, it is set between continuous belt conveyor, transfer belt conveyor;Conveying sealing mechanism includes sealing skirt, it is set in guide chute close to one end of transfer belt conveyor, elastic adjusting device is arranged between sealing skirt and guide chute, and when conveying material, elastic adjusting device is deformed to make sealing skirt far from the end of guide chute close to the load-bearing surface of transfer belt conveyor, ensure the reliability of sealing effect;When material conveying is finished, elastic adjusting device resets to make sealing skirt far from load-bearing surface, reduce abrasion;Buffer mechanism is set in the inner wall of guide chute bottom, buffer material when guide chute is received material, reduce impact, reduce material spilling and dust raising;Dust removal mechanism is set above guide chute, for absorbing dust-containing gas generated when material conveying, reach dust suppression purpose, control dust diffusion, improve transfer point operating environment.

Description

Technical Field

[0001] This disclosure relates to the field of bulk material conveying technology, specifically to a slag-prevention structure for continuous belt conveyors to transfer belt conveyors. Background Technology

[0002] During tunnel construction, materials are typically transported via a multi-stage conveyor belt relay. The key node for transferring materials from one conveyor belt (continuous conveyor belt) to the next (transfer conveyor belt) is the transfer point. Existing technology usually uses simple guide chutes and guards at the transfer point for protection, but this has the following problems: 1) The movement of the belt inevitably produces vibration, deviation, and undulation. Traditional guide chutes or single-layer guards cannot keep up with the movement, resulting in gaps between the guards and the belt, allowing fine particles and dust to continuously escape from the gaps; 2) When materials fall freely from a height and impact the transfer conveyor belt, the large impact energy leads to material breakage and a significant increase in dust.

[0003] These problems lead to material loss, environmental pollution, increased equipment wear and tear, poor on-site hygiene, increased cleaning costs, and even safety hazards. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a slag-preventing structure for a continuous belt conveyor to a transfer belt conveyor.

[0005] This invention provides a structure for preventing slag falling from a continuous belt conveyor to a transfer belt conveyor, comprising:

[0006] A material guide chute is provided between the continuous belt conveyor and the transfer belt conveyor, with an opening at the top for receiving the material output from the continuous belt conveyor.

[0007] A buffer mechanism is provided on the inner wall of the bottom of the feed chute to buffer the impact of the material and convey the material to the transfer belt conveyor.

[0008] A dust removal mechanism is provided above the feed chute to absorb dust-laden gas.

[0009] A conveying sealing mechanism includes a sealing skirt disposed at one end of the material guide chute near the transfer belt conveyor. One end of the sealing skirt is a connecting end, and the other end is a free end. The bottom of the connecting end is hinged to the material guide chute. The two opposite sidewalls of the connecting end are respectively connected to the two opposite sidewalls of the material guide chute via soft cloth, for sealing the gap between the connecting end and the material guide chute. The sealing skirt has a first state and a second state. When the material guide chute is conveying material, the sealing skirt is in the first state, and when the material guide chute stops conveying material, the sealing skirt is in the second state.

[0010] The conveying sealing mechanism further includes an elastic adjustment device, which is disposed between the bottom of the connecting end and the inner wall of the bottom of the guide trough, and is connected to the sealing skirt and the guide trough. When the guide trough conveys material, the material presses down on the sealing skirt, and the sealing skirt rotates relative to the guide trough, compressing the elastic adjustment device. The free end is close to the bearing surface of the transfer belt, at which time the sealing skirt is in the first state. When the guide trough stops conveying material, the sealing skirt is no longer compressed, and the elastic adjustment device resets, lifting the sealing skirt and creating a gap between the free end and the bearing surface of the transfer belt, reducing wear between the sealing skirt and the transfer belt, at which time the sealing skirt is in the second state.

[0011] According to the technical solution provided by the embodiments of the present invention, the buffer mechanism includes:

[0012] The idler rollers are arranged in a plurality of ways along the length of the guide trough, and the idler rollers are rotatably mounted on the inner wall of the bottom of the guide trough.

[0013] A buffer sleeve is fitted onto the outer wall of the idler roller to buffer material impact.

[0014] According to the technical solution provided in the embodiments of the present invention, the dust removal mechanism includes:

[0015] A dust suction hood is disposed above the material guide trough and has absorption holes.

[0016] A negative pressure vacuum cleaner, wherein the negative pressure vacuum cleaner has an absorption end, and the absorption end is connected to the absorption hole pipe.

[0017] According to the technical solution provided by the embodiment of the present invention, the sealing skirt includes a first skirt and a second skirt stacked together, the first skirt is located above the second skirt, the length of the first skirt is less than the length of the second skirt, the hardness is greater than that of the second skirt, and the end of the second skirt away from the guide groove is the free end;

[0018] The bottom of the free end is rotatably equipped with a roller for contacting the bearing surface of the transfer belt conveyor; the free end is detachably equipped with a wear-resistant strip via a quick-release assembly.

[0019] According to the technical solution provided by the embodiment of the present invention, it further includes a collection hopper, which is disposed below one end of the guide chute near the transfer belt conveyor. Multiple layers of anti-collision plates are stacked on the two opposite inner walls of the collection hopper on both sides of the transfer belt conveyor to reduce material impact.

[0020] According to the technical solution provided in the embodiment of the present invention, a scraper is provided inside the hopper, and the scraper is used to scrape off the material adhering to the non-working surface of the transfer belt conveyor.

[0021] According to the technical solution provided in the embodiment of the present invention, baffles are provided on the inner walls of the hopper on both sides of the transfer conveyor belt, and brushes are provided at the bottom of the baffles, with the bottom of the brushes extending to the bearing surface, for preventing materials from falling from both sides of the transfer conveyor belt.

[0022] According to the technical solution provided in the embodiment of the present invention, side seals are also provided on the inner walls of the hopper located on both sides of the transfer belt conveyor. The side seals fill the gap between the hopper and the transfer belt conveyor to prevent material leakage.

[0023] According to the technical solution provided in the embodiments of the present invention, the width of the guide groove gradually decreases from top to bottom.

[0024] According to the technical solution provided by the embodiments of the present invention, the cross-section of the hopper is U-shaped or V-shaped.

[0025] In summary, this invention specifically discloses a slag-prevention structure for a continuous conveyor belt to a transfer conveyor belt, comprising a guide chute disposed between the continuous conveyor belt and the transfer conveyor belt, with an opening at the top for receiving material output from the continuous conveyor belt; a buffer mechanism disposed on the bottom inner wall of the guide chute to buffer the impact of the material and convey it to the transfer conveyor belt; a dust removal mechanism disposed above the guide chute to absorb dust-laden gas; and a conveying sealing mechanism comprising a sealing skirt disposed at the end of the guide chute near the transfer conveyor belt, with the sealing skirt hinged to the guide chute; and an elastic adjustment device disposed between the sealing skirt and the bottom inner wall of the guide chute. When the guide chute is conveying material, the sealing skirt is in a first state, the elastic adjustment device is deformed under pressure, and the free end of the sealing skirt is close to the bearing surface of the transfer conveyor belt. When the guide chute is not conveying material, the sealing skirt is in a second state, the elastic adjustment device is reset and lifts the sealing skirt, forming a gap between the free end of the sealing skirt and the bearing surface of the transfer conveyor belt, reducing wear between the sealing skirt and the transfer conveyor belt.

[0026] A protective system of "sealing and leak prevention + buffering and dust reduction + negative pressure dust removal" is constructed by means of a material guide chute, a buffer mechanism, and a dust removal mechanism. When conveying materials, the material presses down on the sealing skirt and the elastic adjustment device, so that the sealing skirt can adapt to the vibration, undulation and deviation of the transfer belt during operation, ensuring the reliability of the sealing effect and preventing material leakage from the gaps. The buffer mechanism reduces the impact of material falling, effectively reducing material spillage and dust. The dust removal mechanism achieves the purpose of dust suppression, controls the spread of dust, and improves the working environment at the transfer point. Attached Figure Description

[0027] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of a material conveying device.

[0029] Figure 2 This is a schematic diagram of a dust removal mechanism.

[0030] Figure 3 This is a schematic diagram of the feed chute.

[0031] Figure 4 This is a schematic diagram of a material collection hopper.

[0032] Figure 5 This is a cross-sectional view of the material collection hopper.

[0033] Figure 6 for Figure 2 Enlarged view of point A in the middle.

[0034] Figure 7 The diagram shows an airbag with an elastic adjustment device.

[0035] Labels in the diagram: 1. Continuous belt conveyor; 2. Guide chute; 3. Transfer belt conveyor; 4. Wear-resistant strip; 5. Idler roller; 6. Buffer sleeve; 7. Collector hopper; 8. Scraper; 9. Baffle; 10. Side seal; 11. Dust hood; 12. Negative pressure dust collector; 13. First roller; 14. Continuous belt; 15. Second roller; 16. Transfer belt; 17. First skirt; 18. Second skirt; 19. Brush; 20. Spring; 21. Airbag. Detailed Implementation

[0036] 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, only the parts relevant to the invention are shown in the accompanying drawings.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] During tunnel construction, materials are typically transported via a multi-stage conveyor belt relay. The key node for transferring materials from one conveyor belt (continuous conveyor belt) to the next (transfer conveyor belt) is the transfer point. Current technology usually employs a simple guide chute at the transfer point for material guidance, and baffles on the transfer conveyor belt to prevent material from falling off the sides. However, the following drawbacks still exist during material transport: 1) Vibration, deviation, and undulation are inevitable during belt movement. The guide chute or baffles cannot achieve adaptive fit with the belt, allowing fine particles and dust to easily escape from the gaps between the baffles and the belt; 2) During the process of material being transported from the continuous conveyor belt to the guide chute, and from the guide chute to the transfer conveyor belt, material falls cause impacts, leading to material breakage and increased dust generation.

[0039] The aforementioned defects can lead to material loss, air pollution, and increased wear on the conveyor belt. To address these issues, this invention proposes an anti-slag-falling structure for continuous conveyor belts to transfer conveyor belts, which is particularly suitable for material conveying systems that easily generate dust or particles, such as slag, coal, ore, grain, and chemical raw materials.

[0040] Please refer to Figure 1 and Figure 2 A structure for preventing slag falling from a continuous belt conveyor to a transfer belt conveyor, comprising:

[0041] The guide chute 2 is located between the continuous belt conveyor 1 and the transfer belt conveyor 3. The top of the guide chute 2 is open and is used to receive the material output from the continuous belt conveyor 1.

[0042] A buffer mechanism is installed on the inner wall of the bottom of the guide chute 2 to buffer the impact of the material and convey the material to the transfer belt conveyor 3;

[0043] The dust removal mechanism is located above the feed chute 2 and is used to absorb dust-laden gas.

[0044] The conveying sealing mechanism includes a sealing skirt, which is located at one end of the guide chute 2 near the transfer belt conveyor 3. One end of the sealing skirt is a connecting end, and the other end is a free end. The bottom of the connecting end is hinged to the guide chute 2. The two opposite sidewalls of the connecting end are respectively connected to the two opposite sidewalls of the guide chute 2 through a soft cloth, which is used to seal the gap between the connecting end and the guide chute 2. The sealing skirt has a first state and a second state. When the guide chute 2 is conveying materials, the sealing skirt is in the first state, and when the guide chute 2 stops conveying materials, the sealing skirt is in the second state.

[0045] The conveying sealing mechanism also includes an elastic adjustment device, which is located between the bottom of the connecting end and the inner wall of the bottom of the guide chute 2, and is connected to the sealing skirt and the guide chute 2. When the guide chute 2 conveys material, the material presses down on the sealing skirt, and the sealing skirt rotates relative to the guide chute 2, compressing the elastic adjustment device. The free end is close to the bearing surface of the transfer belt 3, at which time the sealing skirt is in the first state. When the guide chute 2 stops conveying material, the sealing skirt is no longer compressed, so the elastic adjustment device resets, lifts the sealing skirt, and forms a gap between the free end and the bearing surface of the transfer belt 3, reducing the wear between the sealing skirt and the transfer belt 3. At this time, the sealing skirt is in the second state.

[0046] Specifically, the material conveying device includes a continuous belt conveyor 1, a guide chute 2, and a transfer belt conveyor 3 in sequence along the material conveying direction. The continuous belt conveyor 1 is used to convey materials from deep within the tunnel to the outside. The guide chute 2 is used to receive the materials conveyed by the continuous belt conveyor 1 and convey the materials to the transfer belt conveyor 3. The transfer belt conveyor 3 can convey materials to the outside of the tunnel.

[0047] The end of the continuous belt conveyor 1 closest to the guide chute 2 is the first output end, used to output material to the guide chute 2. The end of the transfer belt conveyor 3 closest to the guide chute 2 is the first input end, used to receive the material output from the guide chute 2. The first output end is located above the first input end. The guide chute 2 is placed at an angle and along the material conveying direction. The guide chute 2 is tilted downwards. The two ends of the guide chute 2 are the second input end and the second output end, respectively. The second input end is close to the first output end, and the second output end is close to the first input end and located above the first input end.

[0048] The continuous belt conveyor 1 includes a continuous belt conveyor frame, a first roller 13, and a continuous belt 14. The first roller 13 is rotatably mounted on the continuous belt conveyor frame and is driven by an external drive mechanism. The external drive mechanism drives the first roller 13 to rotate, thereby driving the continuous belt 14 to move and realize the conveying of materials. The transfer belt conveyor 3 includes a transfer belt conveyor frame, a second roller 15, and a transfer belt 16. The second roller 15 is rotatably mounted on the transfer belt conveyor frame and is driven by an external drive mechanism. The external drive mechanism drives the second roller 15 to rotate, thereby driving the transfer belt 16 to move and realize the conveying of materials. Both the continuous belt 14 and the transfer belt 16 have a material-carrying surface. The external drive mechanism can be a motor, with a gear fixedly mounted on the output shaft of the motor. The gear meshes with a toothed belt. Gears are also mounted on the first roller 13 and the second roller 15. Through the meshing of the gears and the toothed belt, the external drive mechanism drives the first roller 13 and the second roller 15 to rotate respectively.

[0049] The top opening of the guide trough 2 gradually decreases in width from top to bottom, forming a structure that is wider at the top and narrower at the bottom. It can be streamlined. Thus, the guide trough 2 with a wider opening covers the first output end, which can fully receive the material output from the first output end. Through its variable cross-section design that is wider at the top and narrower at the bottom, it guides the material to slide down smoothly and naturally gathers and guides the material to the bottom inner wall of the guide trough 2.

[0050] Optionally, a support frame is provided on the transfer belt conveyor frame for mounting the guide chute 2. The support frame can be a frame structure composed of connecting rods, extending from the transfer belt conveyor frame toward the continuous belt conveyor 1, so that when the guide chute 2 is placed on the support frame, the guide chute 2 can be located between the continuous belt conveyor 1 and the transfer belt conveyor 3.

[0051] The buffer mechanism is set on the bottom inner wall of the guide trough 2. When the first output end of the continuous belt conveyor 1 conveys the material to the guide trough 2, the material falls on the buffer mechanism. The buffer mechanism can buffer the material, reduce impact energy and dust, and guide the material to be conveyed.

[0052] A dust removal mechanism is installed above the guide chute 2. When material is conveyed from the continuous belt conveyor 1 into the guide chute 2, and when material is conveyed from the guide chute 2 to the transfer belt conveyor 3, the material will inevitably impact the guide chute 2 and the transfer belt conveyor 3, generating dust. To prevent dust from spreading, a dust removal mechanism is installed above the guide chute 2. Optionally, in the vertical direction, the projection of the dust removal mechanism is larger than the projection of the guide chute 2, and it covers the first output end, the second input end, and the conveying sealing mechanism. Thus, during the material conveying process, activating the dust removal mechanism can remove dust-laden air, prevent dust from spreading, achieve a dust suppression effect, and effectively control dust pollution at the transfer point.

[0053] A conveying and sealing mechanism is located at the second output end. The mechanism includes a sealing skirt, with one end being a connecting end and the other a free end. The bottom of the connecting end is hinged to the second output end. The two opposite sidewalls of the connecting end and the two opposite sidewalls of the second output end are connected by a soft cloth, sealing the gap between the connecting end and the guide chute 2 to prevent material residue from entering the gap. Optionally, the connecting end is located inside the second output end, and the height of the two opposite sidewalls of the connecting end is higher than the height of the two opposite sidewalls of the second output end. The connecting end can optionally be hinged to the second output end. The soft cloth material can be TPE. The sealing skirt has a first state and a second state. When the sealing skirt is in the first state, the guide chute 2 and the sealing skirt convey the material; when the sealing skirt is in the second state, the guide chute 2 and the sealing skirt stop conveying material.

[0054] When materials are conveyed, the second roller 15 rotates, driving the transfer belt 16 to move. The transfer belt 16 inevitably experiences vibration, undulation, and deviation. When the guide chute 2 conveys materials, the materials reach the sealing skirt after passing through the second output end. The materials are pressed down on the sealing skirt by gravity, causing the sealing skirt to rotate downward relative to the guide chute 2. The two opposite side walls of the sealing skirt and the two opposite side walls of the guide chute 2 are flexibly connected by a soft cloth, which allows the soft cloth to deform when the sealing skirt rotates downward. At this time, the sealing skirt is in the first state, and the free end can be close to the bearing surface of the transfer belt 3 to guide the materials. At the same time, the sealing skirt provides a buffer for the transfer belt 16, preventing materials from falling and directly impacting the transfer belt, thus extending the service life of the transfer belt 16 and reducing dust caused by material impact.

[0055] It should be noted that a soft cloth is placed between the connecting end and the second output end to seal the connection end and the second output end, preventing materials from entering the gap between the connecting end and the second output end.

[0056] The conveying sealing mechanism also includes an elastic adjustment device, which is located between the bottom of the connecting end and the bottom inner wall of the guide chute 2. When the guide chute 2 is not conveying material, the elastic adjustment device can support the sealing skirt, and the sealing skirt is in the second state, so that a gap is formed between the free end of the sealing skirt and the transfer belt 3, reducing wear. When the guide chute 2 conveys material, the material reaches the sealing skirt from the second output end. The material is pressed down on the sealing skirt by gravity, and the sealing skirt rotates downward. The sealing skirt is in the first state, thereby pressing down the elastic adjustment device, so that the free end is close to the bearing surface of the transfer belt 3. When the guide chute 2 finishes conveying material, the sealing skirt is no longer under pressure, the elastic adjustment device resets, and lifts the sealing skirt, and the sealing skirt is in the second state, and the free end no longer contacts the bearing surface of the transfer belt 3.

[0057] The elastic adjustment device includes a spring 20, which is located at the second output end of the guide chute 2 and at the bottom of the connecting end of the sealing skirt. The two ends of the spring 20 are fixedly connected to the second output end and the connecting end, respectively. Thus, when the guide chute 2 conveys materials, the materials reach the sealing skirt from the second output end. The materials are pressed down on the sealing skirt by gravity, and the sealing skirt rotates downward, thereby compressing the spring 20 and giving the spring 20 elastic force. At this time, the free end is close to the bearing surface of the transfer belt 3. When the guide chute 2 finishes conveying the materials, the sealing skirt is no longer compressed, and the spring 20 returns to its original position due to its elastic force, thereby lifting the sealing skirt, and the free end no longer contacts the bearing surface of the transfer belt 3.

[0058] In other embodiments, the elastic adjustment device includes an airbag 21, which is disposed at the second output end and located at the bottom of the connecting end of the sealing skirt. The top and bottom of the airbag 21 are connected to the connecting end of the sealing skirt and the second output end, respectively. Thus, when the guide chute 2 conveys the material, the material reaches the sealing skirt from the second output end. The material is pressed down on the sealing skirt by gravity, and the sealing skirt rotates downward, thereby compressing the airbag 21 and causing the airbag 21 to deform. At this time, the free end is close to the bearing surface of the transfer belt 3. When the guide chute 2 finishes conveying the material, the sealing skirt is no longer compressed, the airbag 21 is reset, thereby lifting the sealing skirt, and the free end no longer contacts the bearing surface of the transfer belt 3.

[0059] Furthermore, the buffer mechanism includes:

[0060] There are multiple idler rollers 5, which are arranged along the length of the guide trough 2 and are rotatably mounted on the inner wall of the bottom of the guide trough 2.

[0061] Buffer sleeve 6 is fitted on the outer wall of idler roller 5 to buffer the impact of materials.

[0062] Specifically, the buffer mechanism includes multiple idler rollers 5, which are arranged along the length of the guide trough 2. The idler rollers 5 are rotatably connected to the inner wall of the bottom of the guide trough 2. By setting the idler rollers 5, after the material is conveyed to the guide trough 2 by the continuous belt conveyor 1, the idler rollers 5 receive the material. Since the guide trough 2 is inclined, the material moves obliquely downward under the action of gravity, driving the idler rollers 5 to rotate, thereby guiding and conveying the material. Optionally, a support is provided on the inner wall of the bottom of the guide trough 2, and the idler rollers 5 are rotatably mounted on the support.

[0063] The outer wall of the idler roller 5 is fitted with a buffer sleeve 6. Optionally, the buffer sleeve 6 is a rubber sleeve. When the material enters the guide chute 2, the idler roller 5 receives the material, and the buffer sleeve 6 can buffer the impact of the material and reduce the impact force, thereby achieving the purpose of reducing dust.

[0064] In other embodiments, multiple sets of rollers 5 may be arranged sequentially along the width direction of the guide trough 2.

[0065] Furthermore, the dust removal mechanism includes:

[0066] A dust collection hood 11 is positioned above the material guide chute 2, and the dust collection hood 11 is provided with absorption holes.

[0067] The negative pressure vacuum cleaner 12 has an absorption end and an absorption hole pipe connection.

[0068] Specifically, the dust suction hood 11 is positioned above the material guide trough 2. In the vertical direction, the projection of the dust suction hood 11 covers the material guide trough 2, the sealing skirt, and the first input end. The dust suction hood 11 is provided with an absorption hole that communicates with its interior.

[0069] The negative pressure vacuum cleaner 12 has an absorption end, which is connected to the absorption hole pipe.

[0070] Therefore, by activating the negative pressure vacuum cleaner 12, a negative pressure suction is generated at the absorption end, and the negative pressure suction is transmitted to the absorption hole through the pipe, thereby absorbing the air in the area covered by the vacuum hood 11.

[0071] During the process of conveying materials from the continuous belt conveyor 1 to the guide chute 2, and during the process of conveying materials from the guide chute 2 to the transfer belt conveyor 3, the falling materials inevitably cause impacts and dust due to the impact of the materials, even though buffer mechanisms and conveying sealing mechanisms are set up to buffer the materials. The dust suction hood 11 covers the guide chute 2, the sealing skirt, and the first input end. Therefore, the negative pressure suction can absorb the dust-laden air in the area covered by the dust suction hood 11. The dust-laden air is sucked in from the absorption hole and enters the negative pressure vacuum cleaner through the pipe, thereby achieving the purpose of dust suppression and reducing dust pollution.

[0072] Alternatively, the negative pressure vacuum cleaner can be a bag filter.

[0073] Furthermore, such as Figure 1 and Figure 3 As shown, the sealing skirt includes a first skirt 17 and a second skirt 18 stacked together. The first skirt 17 is located above the second skirt 18. The length of the first skirt 17 is less than the length of the second skirt 18, and the hardness is greater than that of the second skirt 18. The end of the second skirt 18 away from the guide groove 2 is a free end.

[0074] The bottom of the free end is provided with a roller for contacting the bearing surface of the transfer belt 3; the free end is provided with a wear-resistant strip 4 which can be detached via a quick-release assembly.

[0075] Specifically, the sealing skirt includes a first skirt 17 and a second skirt 18 stacked together, wherein the first skirt 17 is located above the second skirt 18, and the length of the first skirt 17 is shorter than that of the second skirt 18, while its hardness is greater than that of the second skirt 18. An elastic adjustment device is located between the second skirt 18 and the guide groove 2.

[0076] Both the first skirt 17 and the second skirt 18 are made of wear-resistant, highly elastic materials, such as high-performance polyurethane and rubber composites. The first skirt 17 is shorter and harder, used for initial guidance of materials to ensure that they can move along the sealing skirt. The second skirt 18 is longer and softer, with self-adaptive characteristics. The end of the second skirt 18 away from the guide chute 2 is a free end. When the guide chute 2 is conveying materials, the free end can adapt to the bearing surface of the transfer belt 3, and slightly undulate and deform with the transfer belt 16 to form a dynamic seal and prevent material leakage. When the guide chute 2 is not conveying materials, a gap is formed between the free end and the bearing surface of the transfer belt 3 to reduce wear.

[0077] It should be noted that, in order to ensure that the second skirt 18 has sufficient support, a support frame is provided inside the second skirt 18. During the process of material being transferred from the guide chute 2 to the transfer belt 3, the second skirt 18 can provide sufficient support for the material, preventing the material from falling directly onto the bearing surface of the transfer belt 16 due to the second skirt 18 being too soft. At the same time, the free end of the second skirt 18 can always be in contact with the bearing surface.

[0078] The second skirt 18 can be an integral structure or a segmented structure with multiple connecting sections connected sequentially, with a supporting frame inside each connecting section.

[0079] A roller is rotatably installed at the bottom of the free end, and the roller contacts the transfer belt 16. When the transfer belt 16 moves, the transfer belt 16 always contacts the roller and will not affect the normal movement of the transfer belt 16. When the guide chute 2 does not convey materials, there is a gap between the free end of the sealing skirt and the transfer belt 16 to avoid hard friction between the free end of the sealing skirt and the transfer belt 16.

[0080] The free end of the second skirt 18 is also detachably equipped with a wear-resistant strip 4 via a quick-release assembly. Thus, when the material is conveyed in the guide chute 2, the wear-resistant strip 4 adheres to the transfer belt 16. When the transfer belt 16 moves, friction is generated between the transfer belt 16 and the wear-resistant strip 4. The wear-resistant strip 4 can be quickly removed and replaced via the quick-release assembly. The wear-resistant strip 4 can be made of rubber.

[0081] Optionally, the quick-release assembly includes a clamp that connects the wear-resistant strip 4 and the second skirt 18. When the wear-resistant strip 4 needs to be replaced, it can be removed by the clamp. The clamp can be a clip.

[0082] Furthermore, such as Figure 4 and Figure 5 As shown, it also includes a collection hopper 7, which is located below one end of the guide chute 2 near the transfer belt conveyor 3. Multiple layers of anti-collision plates are stacked on the two opposite inner walls of the collection hopper 7 on both sides of the transfer belt conveyor 3 to reduce material impact.

[0083] Specifically, the cross-section of the collecting hopper 7 is U-shaped or V-shaped. Optionally, the width of the collecting hopper 7 gradually decreases from top to bottom, also exhibiting a variable cross-section structure that is wider at the top and narrower at the bottom. The top of the collecting hopper 7 is open and covers the first input end and the second output end. Optionally, the collecting hopper 7 is located below the support frame. Therefore, when the guide chute 2 conveys materials to the transfer belt conveyor 3, fine particles such as material residue can fall into the collecting hopper 7. The collecting hopper 7 achieves centralized collection of material residue, avoiding material loss and improving on-site safety and hygiene conditions.

[0084] The collecting hopper 7 has a first inner wall and a second inner wall, which are located on both sides of the transfer belt conveyor 3. Multiple layers of anti-collision plates are stacked on both the first inner wall and the second inner wall. When the material falls onto the transfer belt conveyor 3, it may break and splash due to the impact. The anti-collision plates can withstand the impact of the material splashing, which strengthens the structural strength of the collecting hopper 7 and prevents damage.

[0085] Furthermore, a scraper 8 is provided inside the hopper 7. The scraper 8 is used to scrape off the material adhering to the non-working surface of the transfer belt conveyor 3.

[0086] Specifically, a scraper 8 is installed inside the collecting hopper 7 via a support rod. The two ends of the support rod are fixedly connected to the first inner wall and the second inner wall, respectively. The scraper 8 is fixedly mounted on the support rod, and the length of the scraper 8 is parallel to the width of the transfer belt 3. The length of the scraper 8 is greater than or equal to the width of the transfer belt 16. The scraper 8 is made of a flexible material, such as rubber. The scraper 8 is attached to the non-working surface of the transfer belt 16, that is, the side of the transfer belt 16 facing the ground. The bearing surface of the transfer belt 3 receives the material output from the guide chute 2 and conveys the material to the subsequent working line. When the material is output from the output end of the transfer belt 3, some material may remain on the transfer belt 16. This residual material adheres to the transfer belt 16 and is transferred to the non-working surface, where it is carried by the transfer belt 16 towards the guide chute 2. The scraper 8 is always attached to the transfer belt 16, which can scrape off the residual material and prevent clumping. The residual material falls into the collecting hopper 7, completing the material collection.

[0087] Furthermore, baffles 9 are provided on the inner walls of the hopper 7 on both sides of the transfer conveyor belt 3. Brushes 19 are provided at the bottom of the baffles 9, and the bottom of the brushes 19 extends to the bearing surface to prevent materials from falling from both sides of the transfer conveyor belt 3.

[0088] Specifically, baffles 9 are provided on both the first inner wall and the second inner wall, and brushes 19 are provided at the bottom of the baffles 9. The brushes 19 extend to the bearing surface and conform to the bearing surface adaptively.

[0089] By installing baffles 9 on the collecting hopper 7, the transfer belt 16 continuously moves and conveys materials during the operation of the transfer conveyor 3. A confining space is formed between the two baffles 9, which can restrict the materials. Furthermore, since the bottom of the baffle 9 is equipped with a brush 19 that extends to the bearing surface, forming a brush seal, there will be no gaps between the baffle 9 and the transfer belt 16. This can prevent material residue from leaking and spilling through gaps, saving resources, reducing dust, and preventing material residue from entering the structural gaps of the transfer conveyor 3, thereby improving the service life of the equipment and reducing the wear of the transfer belt 16.

[0090] Furthermore, side seals 10 are provided on the inner walls of the hopper 7 located on both sides of the transfer conveyor 3. The side seals 10 fill the gap between the hopper 7 and the transfer conveyor 3 to prevent material leakage.

[0091] Specifically, the first and second inner walls of the collecting hopper 7 are also provided with side seals 10. Optionally, the side seals 10 are brushes. By providing side seals 10 on the first and second inner walls, the side seals 10 can fill the gap between the collecting hopper 7 and the transfer belt conveyor 3, that is, the irregular gap between the inner wall of the collecting hopper 7 and the frame of the transfer belt conveyor. In the vertical direction, there is an overlapping area between the side seals 10 and the transfer belt 16, that is, the end of the side seals 10 away from the inner wall of the collecting hopper 7 extends to the area where the transfer belt 16 is located. During the operation of the transfer belt conveyor 3, even if the transfer belt 16 deviates, vibrates, or undulates, the side seals 10 can always contact the transfer belt 16 to achieve self-adaptive sealing, which can prevent material and slag leakage. At the same time, during the operation of the transfer belt conveyor 3, the side seals 10 achieve the effect of sweeping across the transfer belt 16, which can also sweep away the slag located outside the restricted space and make it fall into the collecting hopper 7 to achieve material collection.

[0092] Working principle: The continuous belt conveyor 1 is used to transport materials from deep within the tunnel to the outside. The guide chute 2 can receive the materials output from the continuous belt conveyor 1 and transport them to the transfer belt conveyor 3. The transfer belt conveyor 3 can transport the materials to the outside of the tunnel. The guide chute 2 is located between the continuous belt conveyor 1 and the transfer belt conveyor 3. The structure of the guide chute 2, which is wider at the top and narrower at the bottom, can fully receive the materials output from the continuous belt conveyor 1, prevent material splashing, and guide the materials to slide smoothly down the inner wall of the guide chute 2, naturally collect and guide them, reduce disorderly collisions of materials in the guide chute 2, and reduce dust.

[0093] A roller 5 is rotatably mounted on the inner wall of the bottom of the feed chute 2. A buffer sleeve 6 is fixedly fitted on the outer wall of the roller 5. The roller 5 with the buffer sleeve 6 can withstand the impact of the material and reduce the impact force of the material, thereby reducing the dust generated when the material falls.

[0094] A sealing skirt is installed at the second output end of the feed chute 2. Its connecting end is hinged to the second output end, and its two opposite sidewalls are flexibly connected to the two opposite sidewalls of the second output end via a soft cloth. When material is conveyed from the feed chute 2 to the sealing skirt, gravity presses down on the sealing skirt and the elastic adjustment device, allowing the free end of the sealing skirt to adhere to the transfer belt 16, forming a dynamic seal. This compensates for gaps caused by vibration and misalignment of the transfer belt 16, creating a sealing barrier during material conveying and significantly reducing material leakage from gaps. When material conveying is complete, the elastic adjustment device resets and lifts the sealing skirt, raising the free end and creating a gap between the free end and the transfer belt 16, reducing wear between the sealing skirt and the transfer belt 16.

[0095] The dust hood 11 covers the area where dust is generated, and the negative pressure suction actively draws in the dust-laden air, effectively controlling the spread of dust at the transfer point and improving air quality.

[0096] The collection hopper 7 prevents material residue from scattering on the ground, reduces material loss, and improves on-site hygiene. The scraper 8 adheres to the non-working surface of the transfer belt 16, scraping off residual material on the transfer belt 16 to prevent material from clumping or sticking. The residual material is scraped off and falls into the collection hopper 7, thus achieving material collection.

[0097] A baffle 9 is installed on the collecting hopper 7, forming a confined space between the two baffles 9 to prevent material from spilling from both sides of the transfer belt 16. At the same time, the brush 19 at the bottom of the baffle 9 extends to the bearing surface to prevent material leakage from the gap between the baffle 9 and the transfer belt 16, and to prevent material residue from entering the structural gaps of the transfer belt 3, thus protecting the equipment. The side seal 10 can fill the irregular gap between the collecting hopper 7 and the transfer belt 3, and can adaptively fit the transfer belt 16, maintaining a seal even when the transfer belt 16 deviates, vibrates, or undulates. It can also sweep away material residue outside the confined space, assisting in material collection.

[0098] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention is not limited to the specific combination of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this invention.

Claims

1. A structure for preventing slag falling from a continuous belt conveyor to a transfer belt conveyor, characterized in that, include: The guide chute (2) is located between the continuous belt conveyor (1) and the transfer belt conveyor (3). The top of the guide chute (2) is open to receive the material output by the continuous belt conveyor (1). A buffer mechanism is provided on the inner wall of the bottom of the guide trough (2) to buffer the impact of the material and convey the material to the transfer belt conveyor (3). A dust removal mechanism is provided above the feed chute (2) for absorbing dust-laden gas. A conveying sealing mechanism includes a sealing skirt, which is disposed at one end of the guide trough (2) near the transfer belt (3). One end of the sealing skirt is a connecting end, and the other end is a free end. The bottom of the connecting end is hinged to the guide trough (2). The two opposite sidewalls of the connecting end are flexibly connected to the two opposite sidewalls of the guide trough (2) through soft cloth, respectively, to seal the gap between the connecting end and the guide trough (2). The sealing skirt has a first state and a second state. When the guide trough (2) is conveying materials, the sealing skirt is in the first state. When the guide trough (2) stops conveying materials, the sealing skirt is in the second state. The conveying sealing mechanism also includes an elastic adjustment device, which is disposed between the bottom of the connecting end and the bottom inner wall of the guide trough (2), and is connected to the sealing skirt and the guide trough (2); when the guide trough (2) conveys material, the material presses down on the sealing skirt, the sealing skirt rotates relative to the guide trough (2), compressing the elastic adjustment device, the free end is close to the bearing surface of the transfer belt conveyor (3), the soft cloth is deformed, at this time the sealing skirt is in the first state, the sealing skirt is against the transfer belt conveyor (3) The bearing surface of the conveyor belt (3) provides a buffer to prevent materials from falling and directly impacting the conveyor belt (3), thereby extending the service life of the conveyor belt (3) and reducing dust caused by material impact. When the guide chute (2) stops conveying materials, the sealing skirt is no longer under pressure, thereby resetting the elastic adjustment device and lifting the sealing skirt, so that a gap is formed between the free end and the bearing surface of the conveyor belt (3), reducing the wear between the sealing skirt and the conveyor belt (3). At this time, the sealing skirt is in the second state. The sealing skirt includes a first skirt (17) and a second skirt (18) stacked together. The first skirt (17) is located above the second skirt (18). The length of the first skirt (17) is shorter than the length of the second skirt (18), and the hardness is greater than that of the second skirt (18). The end of the second skirt (18) away from the guide groove (2) is the free end. When the sealing skirt is in the first state, the first skirt (17) is used to guide the material. The free end is close to the bearing surface of the transfer belt conveyor (3) and deforms with the bearing surface of the transfer belt conveyor (3) to form a dynamic seal. The second skirt (18) is provided with a support frame inside, which is used to support the material when the sealing skirt is in the first state, so as to prevent the material from falling directly onto the bearing surface of the transfer belt conveyor (3) and to ensure that the free end is in contact with the bearing surface of the transfer belt conveyor (3); the elastic adjustment device is located between the second skirt (18) and the guide chute (2); The bottom of the free end is rotatably provided with a roller for contacting the bearing surface of the transfer belt conveyor (3); the free end is detachably provided with a wear-resistant strip (4) via a quick-release assembly.

2. The anti-slag-falling structure for a continuous belt conveyor to a transfer belt conveyor according to claim 1, characterized in that, The buffer mechanism includes: The number of idler rollers (5) is multiple, and the multiple idler rollers (5) are arranged along the length direction of the guide groove (2), and the idler rollers (5) are rotatably disposed on the inner wall of the bottom of the guide groove (2); A buffer sleeve (6) is fitted onto the outer wall of the idler roller (5) to buffer material impact.

3. The anti-slag-falling structure for a continuous belt conveyor to a transfer belt conveyor according to claim 2, characterized in that, The dust removal mechanism includes: A dust collection hood (11) is provided above the material guide trough (2), and the dust collection hood (11) is provided with absorption holes; A negative pressure vacuum cleaner (12) has an absorption end connected to the absorption hole pipe.

4. The anti-slag-falling structure for a continuous belt conveyor to a transfer belt conveyor according to claim 1, characterized in that, It also includes a collection hopper (7), which is located below one end of the guide chute (2) near the transfer belt conveyor (3). Multiple layers of anti-collision plates are stacked on the two opposite inner walls of the collection hopper (7) on both sides of the transfer belt conveyor (3) to reduce material impact.

5. A slag-prevention structure for a continuous belt conveyor to a transfer belt conveyor according to claim 4, characterized in that, The hopper (7) is equipped with a scraper (8) inside, which is used to scrape off the material adhering to the non-working surface of the transfer belt conveyor (3).

6. A slag-prevention structure for a continuous belt conveyor to a transfer belt conveyor according to claim 5, characterized in that, The hopper (7) is provided with baffles (9) on the inner walls on both sides of the transfer conveyor (3). The bottom of the baffle (9) is provided with a brush (19) which extends to the bearing surface to prevent material from falling from both sides of the transfer conveyor (3).

7. A slag-prevention structure for a continuous belt conveyor to a transfer belt conveyor according to claim 6, characterized in that, Side seals (10) are also provided on the inner walls of the hopper (7) located on both sides of the transfer conveyor (3). The side seals (10) fill the gap between the hopper (7) and the transfer conveyor (3) to prevent material leakage.

8. A slag-prevention structure for a continuous belt conveyor to a transfer belt conveyor according to claim 1, characterized in that, The width of the feed trough (2) gradually decreases from top to bottom.

9. A slag-prevention structure for a continuous belt conveyor to a transfer belt conveyor according to claim 4, characterized in that, The cross-section of the hopper (7) is U-shaped or V-shaped.

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