A return belt dustproof viscous material belt conveyor end structure

Abstract

The utility model relates to a kind of dust-preventing sticky material belt conveyor end structure of backhaul belt material.It solves the existing belt conveyor backhaul belt material and other technical problems.It includes end belt drum arranged in discharging bin, the outer side of end belt drum is connected with the conveying belt extended to the outside of one side of discharging bin, cleaning drum is arranged below end belt drum, driving bearing seat is respectively arranged at the both ends of cleaning drum, driving bearing seat is respectively arranged at the both ends of end belt drum, and transmission chain that can make cleaning drum and end belt drum synchronous rotation is connected with driving bearing seat, cleaning drum is equipped with cleaning assembly outside circumferential, and driving bearing seat can make cleaning drum vertical lifting along end belt drum direction by guide adjusting structure.Advantages are that, by the synchronous rotation of cleaning drum with end belt drum, the material adhered to the surface of belt is removed immediately and continuously by cleaning assembly on it before belt backhaul, and the problem of material being brought back and falling is eliminated from the source.

Description

Technical Field

[0001] This utility model belongs to the technical field of belt conveyor equipment, specifically relating to an end structure of a belt conveyor for sticky materials that prevents backflow and dust generation. Background Technology

[0002] Belt conveyors, as a common continuous conveying equipment, are widely used in the handling of bulk materials in industries such as mining, building materials, and grain. However, when handling highly viscous materials, traditional belt conveyors have long faced a problem in the unloading stage at the end: due to their adhesion and stickiness, viscous materials cannot be completely unloaded by gravity. Some of the material adheres to the outer surface of the conveyor belt and is carried away from the unloading point as the belt returns. The material on the return journey falls and accumulates on the idlers, supports, and ground below the conveyor, exacerbating the wear of the idlers and rollers, and may even cause belt misalignment, affecting the normal operation of the equipment. At the same time, a large amount of manpower is required for frequent cleaning, resulting in a large workload and high costs for maintenance. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing an end structure for a belt conveyor for sticky materials that prevents backflow and dust generation.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an end structure for a belt conveyor for sticky materials that prevents backflow and dust generation, comprising an end belt roller disposed within a discharge bin, a conveyor belt extending to one end of the discharge bin, a cleaning roller disposed below the end belt roller, drive bearing seats at both ends of the cleaning roller, and transmission chains at both ends of the end belt roller connected to the drive bearing seats and enabling the cleaning roller to rotate synchronously with the end belt roller, a cleaning component in contact with the conveyor belt on the circumferential outer side of the cleaning roller, and the drive bearing seats enabling the cleaning roller to move vertically up and down along the direction of the end belt roller via a guide adjustment structure. The synchronous rotation design ensures the continuity and effectiveness of cleaning, while the guide adjustment structure provides a basis for maintaining optimal contact pressure between the cleaning roller and the conveyor belt, ensuring long-term operational stability.

[0005] In the aforementioned end structure of a belt conveyor for preventing backflow and dust generation in viscous materials, the upper circumferential inner side of the drive bearing housing is provided with a bearing portion corresponding to the end of the cleaning drum. The bearing portion has an outer bearing ring connected to the drive bearing housing, and an inner bearing ring connected to the end of the cleaning drum is located inside the outer bearing ring. Directly connecting the inner bearing ring to the cleaning drum and fixing the outer bearing ring to the drive bearing housing forms a robust support and rotation center, capable of withstanding the radial load during the cleaning drum's operation, ensuring its smooth rotation, and reducing vibration and wear.

[0006] In the aforementioned end structure of a belt conveyor for preventing backflow and dust generation of viscous materials, the inner ring of the bearing extends axially to the outside of the drive bearing housing at the end furthest from the cleaning drum. Both ends of the end belt roller are respectively equipped with drive shafts corresponding to the ends of the inner ring of the bearing furthest from the cleaning drum, and the drive chain is positioned between the inner ring of the bearing and the drive shafts. By directly connecting the drive chain between the extended inner ring of the bearing and the drive shaft of the end belt roller, rigid synchronization between the cleaning drum and the end belt roller is achieved. This connection method ensures accurate transmission ratios, prevents slippage, and guarantees that the linear speed of the cleaning drum is strictly consistent with the speed of the conveyor belt, thereby achieving optimal cleaning results and avoiding wear on the conveyor belt or cleaning components caused by speed asynchrony.

[0007] In the aforementioned end structure of a belt conveyor for preventing backflow and dust generation of viscous materials, the lower inner side of the discharge bin is provided with several horizontally arranged fixed plates corresponding to the drive bearing seats. The drive bearing seats are located on the upper side of the fixed plates, and the guiding adjustment structure includes an elastic adjustment component disposed between the drive bearing seats and the fixed plates, and guide lifting components disposed on both sides of the drive bearing seats. The fixed plates provide a solid mounting base for the entire adjustment mechanism.

[0008] In the aforementioned end structure of a viscous material belt conveyor for preventing backflow and dust generation, the lower end of the drive bearing housing is provided with an adjusting connection part. The inner side of the adjusting connection part has a rectangular hole, and the lower end of the adjusting connection part has an axially penetrating through hole connected to the rectangular hole. The fixed plate also has a movable hole corresponding to the through hole. The cooperation of the rectangular hole and the through hole creates space for the installation of the adjusting screw and the positioning of the spring components, allowing the entire elastic adjustment system to be integrated into the bottom of the drive bearing housing, resulting in a compact structure that does not occupy additional space.

[0009] In the aforementioned end structure of a viscous material belt conveyor for preventing backflow and dust generation, the elastic adjustment component includes an adjustment screw disposed circumferentially inside a movable hole. The upper end of the adjustment screw extends through a through hole into a rectangular hole. An adjustment nut is located within the rectangular hole at the upper end of the adjustment screw. An adjustment nut is connected to the lower end of the adjustment screw and positioned below a fixed plate. A spring element is sleeved on the outside of the adjustment screw between the adjustment connection and the fixed plate. The spring element provides a continuous upward force, ensuring that the cleaning component maintains effective contact with the conveyor belt and maintains a constant cleaning force. Simultaneously, the adjustment screw and adjustment nut allow for precise adjustment of the spring element's preload, thereby controlling the pressure of the cleaning rollers on the conveyor belt to adapt to different material characteristics or cleaning requirements. This design offers high flexibility and ease of adjustment. Furthermore, in case of malfunction, the spring can be tightened to disengage the two rollers, ensuring equipment safety.

[0010] In the aforementioned end structure of a viscous material belt conveyor for preventing backflow and dust generation, the guide lifting assembly includes guide rails mounted on the upper sides of both ends of a fixed plate. The guide rails are vertically aligned, and the drive bearing housing is located between the two guide rails. An axially aligned guide ridge is provided on the side of each guide rail near the drive bearing housing. Guide portions are provided on both sides of the upper end of the drive bearing housing, and guide grooves corresponding to the guide ridges are provided inside each guide portion. The guide rails and guide ridges constitute a robust guide rail system, precisely matching the guide grooves on the drive bearing housing. This ensures that the cleaning roller can only move vertically under the action of the spring, preventing any horizontal deviation or twisting. This is crucial for maintaining uniform contact between the cleaning assembly and the conveyor belt across its entire width, avoiding localized wear, and ensuring effective cleaning.

[0011] In the aforementioned end structure of a belt conveyor for preventing backflow and dust generation of sticky materials, the cleaning component includes several brush bristles arranged circumferentially on the outer side of the cleaning roller, with a rubber scraper between adjacent brush bristles. The brush bristles are adept at removing fine powder and micro-dust embedded in the belt surface, while the rubber scraper effectively removes materials that are more viscous or clump. The alternating arrangement of the two achieves comprehensive cleaning from gentle to strong, and from dry powder to wet and sticky materials, greatly improving cleaning efficiency and adaptability.

[0012] In the aforementioned end structure of a belt conveyor for preventing dust generation from returning to the conveyor belt, a dust suction hood is installed at the upper end of the discharge hopper. This hood is connected to a bag filter via a suction pipe. The bag filter is equipped with an exhaust motor at its upper end and a discharge pipe connected to the lower end of the discharge hopper at its lower end. The dust suction hood, suction pipe, bag filter, and exhaust motor work together to generate negative pressure at the dust generation point, directly sucking away floating dust. This fundamentally prevents dust from escaping into the workshop environment, ensuring workplace cleanliness and employee health. Simultaneously, the collected dust returns to the discharge hopper through the discharge pipe, achieving material recycling and avoiding waste and secondary pollution.

[0013] In the aforementioned end structure of a belt conveyor for preventing backflow and dust generation in viscous materials, the upper end of the discharge bin near the conveyor belt is equipped with a dust curtain corresponding to the top of the conveyor belt. The end belt roller and cleaning roller are arranged parallel vertically. The cleaning roller near the conveyor belt is equipped with a rubber baffle connected to the discharge bin and corresponding to the bottom of the conveyor belt. The lower end of the discharge bin is equipped with a discharge port. The dust curtain forms a physical barrier, effectively suppressing dust overflow, while the rubber baffle prevents material and dust from leaking from the area below the belt.

[0014] Compared with existing technologies, the advantages of this utility model are as follows.

[0015] 1. This device uses a cleaning roller that rotates synchronously with the end belt roller to clean up the material adhering to the belt surface immediately and continuously before the belt returns, thus eliminating the problem of material being carried back and spilled at the source.

[0016] 2. This device uses a transmission chain to directly transmit the power of the end belt roller to the cleaning roller, ensuring that the speeds of the two are strictly synchronized. This avoids problems such as incomplete cleaning or excessive wear of the belt due to speed differences, and the transmission is direct and efficient.

[0017] 3. The guide lifting assembly of this device ensures that the cleaning roller can only move in the preset vertical direction during the elastic lifting process, without deviation or jamming, thus guaranteeing the uniformity of cleaning contact and the stability of the entire mechanism.

[0018] 4. This device can easily adjust the preload of the spring through the adjusting screw and nut structure in the elastic adjustment component, thereby controlling the total pressure of the cleaning roller on the belt and adapting to materials with different viscosity or wear conditions.

[0019] 5. The cleaning component of this device combines brush bristles and rubber scrapers. The soft brush bristles can effectively clean fine powder and lightly sticky materials, while the tough rubber scrapers can remove firmly adhered lumps or flakes. The two complement each other, and the cleaning effect is far superior to that of a single type of cleaner.

[0020] 6. The device is equipped with a dust curtain and rubber baffle, which seal the gaps between the belt entering and leaving the feeding hopper from the top and bottom, respectively, forming an effective physical barrier. At the same time, the dust suction hood actively extracts the dust generated by the falling materials in the feeding hopper, realizing source collection and purification, and greatly reducing dust emission. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is the utility model Figure 1 Enlarged view of the structure at point A in the middle.

[0023] Figure 3 This is a schematic diagram of the structure of the drive bearing housing in this utility model.

[0024] Figure 4 This is a schematic diagram of the guide rail structure in this utility model.

[0025] In the diagram: 1. Feeding hopper, 11. Fixed plate, 12. Dust hood, 13. Dust suction pipe, 14. Bag dust collector, 15. Exhaust motor, 16. Feeding pipe, 17. Dust curtain, 18. Rubber baffle, 19. Feeding port, 2. End belt roller, 21. Conveyor belt, 22. Drive chain, 23. Drive shaft, 3. Cleaning roller, 4. Drive bearing seat, 41. Bearing part, 42. Bearing outer ring, 43. Bearing inner ring, 44. Adjusting connection part, 45. Rectangular hole, 46. Through hole, 5. Cleaning assembly, 51. Brush bristles, 52. Rubber scraper, 6. Guide adjustment structure, 7. Elastic adjustment assembly, 71. Adjusting screw, 72. Adjusting nut, 73. Spring, 74. Guide lifting assembly, 81. Guide rail, 82. Guide rib, 83. Guide part, 84. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1-4 As shown, an end structure for a belt conveyor for sticky materials, designed to prevent backflow and dust generation, includes an end belt roller 2 housed within a discharge bin 1. A conveyor belt 21, extending to one end of the discharge bin 1, is connected to the outer side of the end belt roller 2. A cleaning roller 3 is positioned below the end belt roller 2, with drive bearing seats 4 at both ends. A transmission chain 22, connected to the drive bearing seats 4 and enabling synchronous rotation of the cleaning roller 3 and the end belt roller 2, is located at both ends of the end belt roller 2. A cleaning assembly 5, in contact with the conveyor belt 21, is located on the outer circumference of the cleaning roller 3. The drive bearing seats 4, through a guide adjustment structure 6, allow the cleaning roller 3 to vertically rise and fall along the direction of the end belt roller 2. The synchronous rotation design ensures continuous and effective cleaning, while the guide adjustment structure 6 provides a basis for maintaining optimal contact pressure between the cleaning roller 3 and the conveyor belt 21, guaranteeing long-term operational stability.

[0028] Combination Figures 1-3 As shown, the upper circumferential inner side of the drive bearing housing 4 is provided with a bearing portion 41 corresponding to the end of the cleaning roller 3. The bearing portion 41 has a bearing outer ring 42 connected to the drive bearing housing 4, and the inner side of the bearing outer ring 42 is provided with a bearing inner ring 43 connected to the end of the cleaning roller 3. By directly connecting the bearing inner ring 43 to the cleaning roller 3 and fixing the bearing outer ring 42 to the drive bearing housing 4, a solid support and rotation center are formed, which can withstand the radial load of the cleaning roller 3 during operation, ensuring its smooth rotation and reducing vibration and wear.

[0029] The inner ring 43 of the bearing extends axially to the outside of the drive bearing housing 4 at the end furthest from the cleaning roller 3. The end belt roller 2 has drive shafts 23 at both ends corresponding to the ends of the inner ring 43 furthest from the cleaning roller 3, and a drive chain 22 is positioned between the inner ring 43 and the drive shafts 23. By directly connecting the drive chain 22 to the extended inner ring 43 and the drive shafts 23 of the end belt roller 2, rigid synchronization between the cleaning roller 3 and the end belt roller 2 is achieved. This connection method ensures accurate transmission ratios, prevents slippage, and guarantees that the linear speed of the cleaning roller 3 is strictly consistent with the speed of the conveyor belt 21, thereby achieving optimal cleaning results and avoiding wear on the conveyor belt 21 or cleaning assembly 5 due to speed asynchrony.

[0030] Specifically, the lower inner side of the feeding hopper 1 is provided with several horizontally arranged fixing plates 11 corresponding to the drive bearing seats 4. The drive bearing seats 4 are arranged on the upper side of the fixing plates 11, and the guide adjustment structure 6 includes an elastic adjustment component 7 arranged between the drive bearing seats 4 and the fixing plates 11, and guide lifting components 8 arranged on both sides of the drive bearing seats 4. The fixing plates 11 provide a solid mounting base for the entire adjustment mechanism.

[0031] Furthermore, the lower end of the drive bearing housing 4 is provided with an adjusting connection part 44, the inner side of which is provided with a rectangular hole 45, and the lower end of the adjusting connection part 44 is provided with a through hole 46 that passes through axially and is connected to the rectangular hole 45. The fixing plate 11 is provided with a movable hole corresponding to the through hole 46. The cooperation between the rectangular hole 45 and the through hole 46 creates space for the installation of the adjusting screw 71 and the positioning of the spring 74, so that the entire elastic adjustment system can be integrated into the bottom of the drive bearing housing 4, with a compact structure and without occupying extra space.

[0032] Furthermore, the elastic adjustment assembly 7 includes an adjustment screw 71 disposed circumferentially inside the movable hole. The upper end of the adjustment screw 71 extends through a through hole 46 into a rectangular hole 45. An adjustment nut 72 is located inside the rectangular hole 45 at the upper end of the adjustment screw 71. An adjustment nut 73 is connected to the lower end of the adjustment screw 71 and located below the fixed plate 11. A spring member 74 is sleeved on the outside of the adjustment screw 71 between the adjustment connection part 44 and the fixed plate 11. The spring member 74 provides a continuous upward force, ensuring that the cleaning assembly 5 always maintains effective contact with the conveyor belt 21 and maintains a constant cleaning force. At the same time, the adjustment screw 71 and the adjustment nut 73 allow for precise adjustment of the preload of the spring member 74, thereby controlling the pressure of the cleaning roller 3 on the conveyor belt 21 to adapt to different material characteristics or cleaning requirements. It is highly flexible and easy to adjust. In case of failure, the spring can be tightened to disengage the two rollers to ensure equipment safety.

[0033] Combination Figures 2-4As shown, the guide lifting assembly 8 includes guide rails 81 disposed on the upper sides of both ends of the fixed plate 11. The guide rails 81 are vertically arranged, and the drive bearing seat 4 is located between the two guide rails 81. The guide rails 81 are provided with axially arranged guide protrusions 82 on the side near the drive bearing seat 4. The upper ends of the drive bearing seat 4 are respectively provided with guide portions 83, and the inner side of the guide portions 83 is provided with guide grooves 84 corresponding to the guide protrusions 82. The guide rails 81 and guide protrusions 82 constitute a robust guide rail system, which precisely matches the guide grooves 84 on the drive bearing seat 4. This ensures that the cleaning roller 3 can only move strictly vertically under the action of the spring, preventing any horizontal deviation or torsion. This is crucial for maintaining uniform contact between the cleaning assembly 5 and the conveyor belt 21 across the entire width, avoiding local wear, and ensuring cleaning effect.

[0034] The cleaning component 5 includes several bristles 51 arranged on the outer periphery of the cleaning roller 3, with a rubber scraper 52 positioned between adjacent bristles 51. The bristles 51 are adept at removing fine powder and micro-dust embedded in the belt surface, while the rubber scraper 52 effectively removes sticky or clumped materials. The alternating arrangement of the two achieves comprehensive cleaning from gentle to strong, and from dry powder to wet and sticky materials, greatly improving cleaning efficiency and adaptability.

[0035] like Figure 1 As shown, a dust collection hood 12 is installed at the upper end of the feeding hopper 1. The dust collection hood 12 is connected to a bag filter 14 via a dust collection pipe 13. The bag filter 14 is equipped with an exhaust motor 15 at its upper end, and a feeding pipe 16 connected to the lower end of the feeding hopper 1 is installed at its lower end. The dust collection hood 12, the dust collection pipe 13, the bag filter 14, and the exhaust motor 15 work together to generate negative pressure at the dust emission point, directly sucking away the floating dust. This fundamentally prevents dust from escaping into the workshop environment, ensuring the cleanliness of the workplace and the health of employees. At the same time, the collected dust is returned to the feeding hopper 1 through the feeding pipe 16, realizing material recycling and avoiding waste and secondary pollution.

[0036] The material discharge bin 1 has a dustproof curtain 17 on its upper end near the conveyor belt 21, corresponding to the top of the conveyor belt 21. The end belt roller 2 and the cleaning roller 3 are arranged vertically parallel to each other. The cleaning roller 3 has a rubber baffle 18 on its side near the conveyor belt 21, connected to the material discharge bin 1 and corresponding to the bottom of the conveyor belt 21. The material discharge bin 1 has a discharge port 19 at its lower end. The dustproof curtain 17 forms a physical barrier, effectively suppressing dust overflow, while the rubber baffle 18 prevents materials and dust from leaking from the area below the belt.

[0037] The principle of this embodiment is as follows: The drive shafts 23 at both ends of the end belt roller 2 transmit power to the inner bearing rings 43 at both ends of the cleaning roller 3 via the drive chain 22. Since the inner bearing rings 43 are fixedly connected to the cleaning roller 3, the cleaning roller 3 rotates in the opposite direction at the same linear velocity as the end belt roller 2. At the same time, the cleaning assembly 5 fixed on the cleaning roller 3 rotates accordingly. The bristles 51 are responsible for cleaning the fine dust embedded in the belt surface, while the rubber scraper 52 uses its rigidity to remove larger or stickier materials adhering to the belt. The spring 74 is compressed between the drive bearing seat 4 and the fixed plate 11, generating a continuous upward force. The pressure is ultimately transmitted to the cleaning roller 3 via the drive bearing housing 4, causing the cleaning component 5 to be tightly pressed against the lower surface of the conveyor belt 21. By turning the adjusting nut 73, the compression of the spring 74 can be changed, thereby precisely adjusting the pressure of the cleaning roller 3 on the conveyor belt 21 to adapt to materials with different viscosity or abrasion. The guide grooves 84 on both sides of the drive bearing housing 4 are precisely matched with the guide protrusions 82, ensuring that the cleaning roller 3 can only make strict vertical lifting and lowering movements, preventing it from swinging or tilting laterally. This ensures that the cleaning pressure is evenly distributed along the width of the belt and that the contact between the cleaning component 5 and the belt is always in the best condition.

[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0039] Although this document frequently uses terms such as hopper 1, fixed plate 11, dust hood 12, dust suction pipe 13, bag filter 14, exhaust motor 15, discharge pipe 16, dust curtain 17, rubber baffle 18, discharge port 19, end belt roller 2, conveyor belt 21, transmission chain 22, transmission shaft 23, cleaning roller 3, drive bearing seat 4, bearing part 41, bearing outer ring 42, bearing inner ring 43, adjusting connection part 44, rectangular hole 45, through hole 46, cleaning assembly 5, brush bristles 51, rubber scraper 52, guide adjustment structure 6, elastic adjustment assembly 7, adjusting screw 71, adjusting nut 72, adjusting nut 73, spring part 74, guide lifting assembly 8, guide rail 81, guide protrusion 82, guide part 83, guide groove 84, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An end structure for a belt conveyor for sticky materials that prevents return material from carrying back and dust, comprising an end belt roller (2) disposed in a discharge bin (1), wherein a conveyor belt (21) extending to one side of the discharge bin (1) is connected to the outer side of the end belt roller (2), characterized in that, The end belt roller (2) is provided with a cleaning roller (3) below it. The cleaning roller (3) is provided with drive bearing seats (4) at both ends. The end belt roller (2) is provided with a transmission chain (22) at both ends connected to the drive bearing seats (4) and capable of making the cleaning roller (3) and the end belt roller (2) rotate synchronously. The cleaning roller (3) is provided with a cleaning component (5) on the outer circumference that contacts the conveyor belt (21). The drive bearing seat (4) can make the cleaning roller (3) rise and fall vertically along the direction of the end belt roller (2) through the guide adjustment structure (6).

2. The end structure of a viscous material belt conveyor for preventing backflow and dust generation as described in claim 1, characterized in that, The upper circumferential inner side of the drive bearing housing (4) is provided with a bearing part (41) corresponding to the end of the cleaning roller (3). The bearing part (41) has a bearing outer ring (42) connected to the drive bearing housing (4), and the inner side of the bearing outer ring (42) is provided with a bearing inner ring (43) connected to the end of the cleaning roller (3).

3. The end structure of a viscous material belt conveyor for preventing backflow and dust generation as described in claim 2, characterized in that, The bearing inner ring (43) extends axially to the outside of the drive bearing seat (4) at the end away from the cleaning roller (3). The two ends of the end belt roller (2) are respectively provided with drive shafts (23) corresponding to the end of the bearing inner ring (43) away from the cleaning roller (3), and the drive chain (22) is arranged between the bearing inner ring (43) and the drive shaft (23).

4. The end structure of a viscous material belt conveyor for preventing backflow and dust generation according to claim 1, 2, or 3, characterized in that, The lower inner side of the feeding bin (1) is provided with several fixed plates (11) that correspond to the drive bearing seat (4) and are arranged horizontally. The drive bearing seat (4) is arranged on the upper side of the fixed plate (11). The guide adjustment structure (6) includes an elastic adjustment component (7) arranged between the drive bearing seat (4) and the fixed plate (11) and a guide lifting component (8) arranged on both sides of the drive bearing seat (4).

5. The end structure of a viscous material belt conveyor for preventing backflow and dust generation as described in claim 4, characterized in that, The lower end of the drive bearing housing (4) is provided with an adjustment connection part (44), the inner side of the adjustment connection part (44) is provided with a rectangular hole (45), the lower end of the adjustment connection part (44) is provided with a through hole (46) that passes through axially and is connected to the rectangular hole (45), and the fixed plate (11) is provided with a movable hole corresponding to the through hole (46).

6. The end structure of a viscous material belt conveyor for preventing backflow and dust generation as described in claim 5, characterized in that, The elastic adjustment assembly (7) includes an adjustment screw (71) disposed on the inner side of the movable hole in the circumferential direction. The upper end of the adjustment screw (71) extends into the rectangular hole (45) through the through hole (46). The upper end of the adjustment screw (71) is provided with an adjustment nut (72) located in the rectangular hole (45). The lower end of the adjustment screw (71) is connected to an adjustment nut (73) located on the lower side of the fixed plate (11). A spring (74) sleeved on the outside of the adjustment screw (71) is provided between the adjustment connection part (44) and the fixed plate (11).

7. The end structure of a viscous material belt conveyor for preventing backflow and dust generation as described in claim 4, characterized in that, The guide lifting assembly (8) includes guide rails (81) set on the upper sides of both ends of the fixed plate (11). The guide rails (81) are vertically arranged and the drive bearing seat (4) is located between the two guide rails (81). The guide rails (81) are provided with axially arranged guide protrusions (82) on the side of the drive bearing seat (4). The upper ends of the drive bearing seat (4) are provided with guide portions (83) on both sides respectively, and the inner side of the guide portion (83) is provided with guide grooves (84) corresponding to the guide protrusions (82).

8. The end structure of a viscous material belt conveyor for preventing backflow and dust generation as described in claim 1, characterized in that, The cleaning assembly (5) includes a number of bristles (51) arranged on the outer side of the cleaning roller (3), and a rubber scraper (52) is provided between two adjacent bristles (51).

9. The end structure of a viscous material belt conveyor for preventing backflow and dust generation as described in claim 1, characterized in that, The upper end of the feeding hopper (1) is provided with a dust suction hood (12), which is connected to the bag filter (14) through a dust suction pipe (13). The upper end of the bag filter (14) is provided with a blower motor (15), and the lower end of the bag filter (14) is provided with a feeding pipe (16) that is connected to the lower end of the feeding hopper (1).

10. The end structure of a viscous material belt conveyor for preventing backflow and dust generation according to claim 1, characterized in that, The upper end of the feeding bin (1) near the conveyor belt (21) is provided with a dustproof curtain (17) corresponding to the upper part of the conveyor belt (21). The end belt roller (2) and the cleaning roller (3) are arranged in parallel vertically. The cleaning roller (3) near the conveyor belt (21) is provided with a rubber baffle (18) connected to the feeding bin (1) and corresponding to the lower part of the conveyor belt (21). The lower end of the feeding bin (1) is provided with a feeding port (19).

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