A dust suppression device for the tail of a stock chute

By introducing an adjustable anti-wear structure and dust removal strips into the dust suppression device, the problem of poor sealing caused by wear of the anti-overflow skirt panel was solved, achieving efficient dust suppression and extending service life.

CN224336716UActive Publication Date: 2026-06-09HUBEI HEXINXIN TRANSMISSION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI HEXINXIN TRANSMISSION TECHNOLOGY CO LTD
Filing Date
2025-08-07
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing dust suppression device's anti-overflow skirt is fixedly installed with the conveyor belt. After long-term use, it is prone to wear and tear, resulting in larger gaps, poorer sealing, and dust overflowing from the gaps, affecting the dust suppression effect.

Method used

The system employs an adjustable anti-wear structure, including a rotating shaft, rotating rollers, and damping rods, to automatically adjust the position of the anti-overflow skirt to compensate for wear gaps. It also reduces friction through rubber sleeves and rotating rollers, while adding sealing rubber strips and dust-collecting cloth strips to enhance sealing and dust adsorption.

Benefits of technology

It effectively reduces dust overflow, extends equipment life, lowers maintenance costs, improves dust suppression, and ensures sealing and dust removal efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224336716U_ABST
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Abstract

The utility model relates to material conveying technical field, and disclose a dust suppression device for guide chute tail, including roof, the roof lower surface fixed mounting has two side plates of quantity, be equipped with the wear -resisting structure of adjusting on the side plate. This dust suppression device for guide chute tail, through setting up damper rod changed the mode of traditional anti -overflow apron fixed mounting, when the anti -overflow apron wear appears gap, damper rod can automatically adjust the position of anti -overflow apron, make anti -overflow apron close to conveyer belt, compensate gap, avoid dust overflow, enhance the sealing property and dust suppression effect, the surface of anti -overflow apron is equipped with first rotating roller and second rotating roller simultaneously, can change the sliding friction between conveyer belt and anti -overflow apron and rubber sleeve into rolling friction, be favorable to reduce friction, reduce the wear and tear of anti -overflow apron and rubber sleeve, prolong the service life of anti -overflow apron and rubber sleeve, reduce maintenance cost.
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Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, specifically a dust suppression device for the tail end of a material guide trough. Background Technology

[0002] As one of the most widely used continuous transportation equipment in the industrial field, belt conveyors have become the core equipment for conveying various bulk materials such as coal, ore, grain, and building materials due to their high efficiency, reliability, and strong adaptability. In the belt conveyor transfer process, when materials are unloaded from the upper belt to the lower belt, the impact of the drop and the effect of induced wind can easily cause secondary dust particles to be raised, especially forming a high-concentration dust cloud in the outlet area of ​​the feed chute. This not only leads to an increase in material loss rate but also causes a deterioration of the working environment. Therefore, dust suppression devices are used at the feed chute to suppress dust.

[0003] Existing dust suppression devices generally consist of side plates and a top cover, laid directly above the feed chute. An anti-overflow skirt is installed on the inner side of the side plate, contacting both sides of the conveyor belt to seal the working surface of the conveyor belt. However, the anti-overflow skirt is fixedly installed and in contact with the conveyor belt. After long-term operation, the surface of the anti-overflow skirt is prone to wear, and the gap between it and the sides of the conveyor belt becomes larger. The fixed installation cannot compensate for the gap after the anti-overflow skirt wears, causing dust to overflow from the gap, resulting in poor sealing of the dust suppression device and affecting the dust suppression effect. Therefore, a dust suppression device for the tail of the feed chute is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a dust suppression device for the tail end of a feed chute. It has the advantages of being wear-resistant and having a good dust suppression effect. It solves the problem that existing dust suppression devices use a fixed installation of the anti-overflow skirt plate that is in contact with the conveyor belt. After long-term operation, the surface of the anti-overflow skirt plate is prone to wear, and the gap between the anti-overflow skirt plate and the two sides of the conveyor belt becomes larger. The fixed installation cannot compensate for the gap after the anti-overflow skirt plate wears, causing dust to overflow from the gap, resulting in poor sealing of the dust suppression device and affecting the dust suppression effect.

[0005] To achieve the above-mentioned goals of being wear-resistant and having good dust suppression effect, this utility model provides the following technical solution: a dust suppression device for the tail of a feed chute, including a top plate, two side plates fixedly installed on the lower surface of the top plate, and an adjustable anti-wear structure provided on the side plates;

[0006] The adjustable wear-resistant structure includes two fixed plates fixedly installed on opposite surfaces of two side plates. A rotating shaft is rotatably installed between the opposite surfaces of the two fixed plates. An overflow skirt is fixedly installed on the surface of the rotating shaft. Grooves are formed on the opposite surfaces of the overflow skirts. A first rotating roller is rotatably installed inside the grooves. Multiple strip grooves are formed on the surface of the overflow skirts. A second rotating roller is rotatably installed inside the strip grooves. A rubber sleeve is fitted onto the surface of the overflow skirts. The rubber sleeve is in contact with the surfaces of the first and second rotating rollers. A connecting plate is fixedly installed on the surface of the fixed plates. A damping rod is fixedly installed on the surface of the connecting plate. One end of the damping rod is rotatably connected to the surface of the overflow skirt.

[0007] Furthermore, a sealing rubber strip is fixedly installed on the surface of the side plate, and one side of the sealing rubber strip is fixedly connected to the surface of the spill-proof skirt plate.

[0008] Furthermore, a rectangular hole is provided on the upper surface of the top plate, and a fixing frame corresponding to the rectangular hole is fixedly installed on the upper surface of the top plate. A sealing plate is snapped into the inner side of the fixing frame, and a dust removal cloth strip extending through the rectangular hole to the bottom of the top plate is fixedly installed on the lower surface of the sealing plate.

[0009] Furthermore, there are multiple dust removal strips, which are evenly distributed on the lower surface of the sealing plate.

[0010] Furthermore, a slot is provided on the inner side of the fixed frame, a strip that matches the slot is fixedly installed on the surface of the sealing plate, a fixing screw is rotatably installed on the surface of the sealing plate, and a threaded groove that matches the fixing screw is provided on the upper surface of the top plate.

[0011] Compared with the prior art, this utility model provides a dust suppression device for the tail of the feed chute, which has the following beneficial effects:

[0012] 1. This dust suppression device for the tail end of the feed chute changes the traditional fixed installation method of the anti-overflow skirt by setting a damping rod. When the anti-overflow skirt wears and gaps appear, the damping rod can automatically adjust the position of the anti-overflow skirt, so that the anti-overflow skirt is in close contact with the conveyor belt, compensating for the gaps, preventing dust from overflowing, and enhancing the sealing and dust suppression effect. At the same time, the surface of the anti-overflow skirt is equipped with a first rotating roller and a second rotating roller, which can change the sliding friction between the conveyor belt and the anti-overflow skirt and rubber sleeve into rolling friction, which helps to reduce friction, reduce wear on the anti-overflow skirt and rubber sleeve, extend the service life of the anti-overflow skirt and rubber sleeve, and reduce maintenance costs.

[0013] 2. This dust suppression device for the tail end of the feed chute, by setting a fixed frame, a sealing plate and a dust removal strip, allows the dust removal strip to come into contact with dust in the material or air during the operation of the feed chute, playing a certain role in adsorption and blocking, reducing the upward drift of dust. At the same time, the sealing plate is snapped into the fixed frame and fixed by the fixing screw and threaded groove, which facilitates the installation, replacement and cleaning of the dust removal strip, ensuring that the dust removal strip can continuously and effectively play its dust removal role. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structural adjustment and wear-resistant structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the top plate and sealing plate of this utility model.

[0017] In the diagram: 1. Top plate; 2. Side plate; 3. Adjustable anti-wear structure; 31. Fixing plate; 32. Rotating shaft; 33. Anti-overflow skirt; 34. Groove; 35. First rotating roller; 36. Strip groove; 37. Second rotating roller; 38. Rubber sleeve; 39. Damping rod; 40. Connecting plate; 4. Sealing rubber strip; 5. Rectangular hole; 6. Fixing frame; 7. Sealing plate; 8. Dust removal cloth strip; 9. Slot; 10. Clip; 11. Fixing screw; 12. Threaded groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3This embodiment of a dust suppression device for the tail end of a feed chute includes a top plate 1. Two side plates 2 are fixedly installed on the lower surface of the top plate 1. The side plates 2 are provided with an adjustable anti-wear structure 3. The adjustable anti-wear structure 3 includes two fixed plates 31 fixedly installed on opposite sides of the two side plates 2. A rotating shaft 32 is rotatably installed between the opposite sides of the two fixed plates 31. An anti-overflow skirt 33 is fixedly installed on the surface of the rotating shaft 32. The opposite sides of the anti-overflow skirt 33 are each provided with a recess. A first roller 35 is rotatably mounted inside the groove 34. A number of strip grooves 36 are formed on the surface of the overflow skirt 33. A second roller 37 is rotatably mounted inside the strip grooves 36. A rubber sleeve 38 is fitted onto the surface of the overflow skirt 33. The rubber sleeve 38 is in contact with the surfaces of the first roller 35 and the second roller 37. A connecting plate 40 is fixedly mounted on the surface of the fixing plate 31. A damping rod 39 is fixedly mounted on the surface of the connecting plate 40. One end of the damping rod 39 is rotatably connected to the surface of the overflow skirt 33.

[0020] In this embodiment, a sealing rubber strip 4 is fixedly installed on the surface of the side plate 2. One side of the sealing rubber strip 4 is fixedly connected to the surface of the anti-overflow skirt 33. By setting the sealing rubber strip 4, the gap between the side plate 2 and the anti-overflow skirt 33 can be sealed.

[0021] In this embodiment, a rectangular hole 5 is provided on the upper surface of the top plate 1, and a fixing frame 6 corresponding to the rectangular hole 5 is fixedly installed on the upper surface of the top plate 1. A sealing plate 7 is snapped into the inner side of the fixing frame 6, and a dust removal cloth strip 8 extending through the rectangular hole 5 to the bottom of the top plate 1 is fixedly installed on the lower surface of the sealing plate 7. During the operation of the material guide chute, the dust removal cloth strip 8 can come into contact with the material or dust in the air, and play a certain role in adsorption and blocking, reducing the upward drift of dust.

[0022] In this embodiment, there are multiple dust removal strips 8, which are evenly distributed on the lower surface of the sealing plate 7.

[0023] In this embodiment, a slot 9 is provided on the inner side of the fixed frame 6, a strip 10 adapted to the slot 9 is fixedly installed on the surface of the sealing plate 7, a fixing screw 11 is rotatably installed on the surface of the sealing plate 7, and a threaded groove 12 adapted to the fixing screw 11 is provided on the upper surface of the top plate 1. By setting the slot 9, the strip 10, the fixing screw 11 and the threaded groove 12, it is convenient to install, replace and clean the dust removal cloth strip 8.

[0024] The working principle of the above embodiments is as follows:

[0025] In use, the top plate 1 and side plate 2 are installed directly above the guide chute, so that the anti-overflow skirt 33 and rubber sleeve 38 contact both sides of the conveyor belt to seal the working surface of the conveyor belt. The damping rod 39 provides a certain resistance to keep the anti-overflow skirt 33 in close contact with the conveyor belt, preventing dust from overflowing from the gap between the anti-overflow skirt 33 and the conveyor belt. When the surface of the anti-overflow skirt 33 is worn, under the elastic action of the damping rod 39, the anti-overflow skirt 33 will rotate around the rotating shaft 32, automatically adjusting the contact position with the conveyor belt to compensate for the gaps caused by wear. At the same time, during the operation of the conveyor belt, it can drive the rubber sleeve 38 to rotate in cooperation with the first rotating roller 35 and the second rotating roller 37, which can reduce the friction of the rubber sleeve 38. The friction between the rubber sleeve 38 and the anti-overflow skirt 33 and the conveyor belt is reduced, thus reducing the wear of the rubber sleeve 38 and the anti-overflow skirt 33. When dust is generated and flies upward during the transportation of materials on the conveyor belt, the dust removal strip 8 can block some of the dust, causing it to adhere to the surface of the dust removal strip 8 and reducing the spread of dust to the outside of the device. At the same time, a slot 9 is provided on the inner side of the fixed frame 6, and a clip 10 that matches the slot 9 is fixedly installed on the surface of the sealing plate 7. A fixing screw 11 is rotatably installed on the surface of the sealing plate 7, and a threaded groove 12 that matches the fixing screw 11 is provided on the upper surface of the top plate 1. This snap-fit ​​and screw fixing method facilitates the installation and disassembly of the sealing plate 7, and makes it convenient to clean or replace the dust removal strip 8, ensuring its dust suppression effect.

[0026] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust suppression device for the tail end of a feed chute, comprising a top plate (1), wherein two side plates (2) are fixedly installed on the lower surface of the top plate (1), characterized in that: The side plate (2) is provided with an adjustable anti-wear structure (3); The adjustable anti-wear structure (3) includes two fixed plates (31) fixedly installed on opposite sides of the two side plates (2). A rotating shaft (32) is rotatably installed between the opposite sides of the two fixed plates (31). An anti-overflow skirt (33) is fixedly installed on the surface of the rotating shaft (32). Grooves (34) are provided on the opposite sides of the anti-overflow skirt (33). A first rotating roller (35) is rotatably installed inside the groove (34). A number of grooves are provided on the surface of the anti-overflow skirt (33). The system comprises multiple strip grooves (36), inside which a second rotating roller (37) is rotatably mounted. A rubber sleeve (38) is fitted onto the surface of the anti-overflow skirt (33), and the rubber sleeve (38) is in contact with the surfaces of the first rotating roller (35) and the second rotating roller (37). A connecting plate (40) is fixedly mounted on the surface of the fixing plate (31), and a damping rod (39) is fixedly mounted on the surface of the connecting plate (40). One end of the damping rod (39) is rotatably connected to the surface of the anti-overflow skirt (33).

2. A dust suppression device for the tail end of a feed chute according to claim 1, characterized in that: A sealing rubber strip (4) is fixedly installed on the surface of the side plate (2), and one side of the sealing rubber strip (4) is fixedly connected to the surface of the anti-overflow skirt plate (33).

3. A dust suppression device for the tail end of a feed chute according to claim 1, characterized in that: A rectangular hole (5) is provided on the upper surface of the top plate (1). A fixed frame (6) corresponding to the rectangular hole (5) is fixedly installed on the upper surface of the top plate (1). A sealing plate (7) is snapped into the inner side of the fixed frame (6). A dust removal cloth strip (8) extending through the rectangular hole (5) to the bottom of the top plate (1) is fixedly installed on the lower surface of the sealing plate (7).

4. A dust suppression device for the tail end of a feed chute according to claim 3, characterized in that: The number of the dust removal strips (8) is multiple, and the multiple dust removal strips (8) are evenly distributed on the lower surface of the sealing plate (7).

5. A dust suppression device for the tail end of a feed chute according to claim 3, characterized in that: The inner side of the fixed frame (6) is provided with a slot (9), the surface of the sealing plate (7) is fixedly installed with a strip (10) that matches the slot (9), the surface of the sealing plate (7) is rotatably installed with a fixing screw (11), and the upper surface of the top plate (1) is provided with a threaded groove (12) that matches the fixing screw (11).