Closed side deflector belt unloader
By using a closed-loop side-guided belt conveyor feeding device, the problems of insufficient dust control and belt scratches at the traditional feeding port are solved. This achieves low dust escape and active protection, extends the service life of the belt, and improves the environmental friendliness and safety of the equipment.
Patent Information
- Application Number
- CN202521825361.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2035-08-27
AI Technical Summary
Traditional feeding ports suffer from insufficient dust control and passive protection defects during powder conveying, resulting in high dust escape rates and easy damage to the conveyor belt.
A closed-loop, side-guided conveyor belt feeding device was designed, including a dust cover and a feeding pipe. Material falls from the feeding pipe to a sealed base plate and flows out through the feeding port to the conveyor belt. Dust overflow is reduced by a dust removal system, which uses a closed dust cover and an external dust collector connected to it for collection. By aligning the material flow direction with the conveying direction, dust generation is reduced, and the material is collected by the dust collector. The material flow direction is adjusted using a guide plate and an regulating mechanism.
It effectively reduced dust escape rate, extended belt service life, achieved active protection, reduced equipment wear and tear risk, and improved the system's environmental friendliness and safety.
Smart Images

Figure CN224393803U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bulk material conveying equipment, specifically to a closed-type lateral guide belt conveyor unloading device. Background Technology
[0002] In the process of conveying powder materials in industries such as metallurgy, coal, and chemicals, the powder material is usually fed onto the conveyor belt of the belt conveyor through the discharge port. The discharge port is generally composed of a discharge chute and a dust cover. The powder material falls directly from the discharge chute onto the conveyor belt.
[0003] Traditional feed ports have two major technical drawbacks:
[0004] (1) Insufficient dust control: The root cause of dust problems lies in the impact and dispersion during the material feeding process. When materials fall from a height and impact the conveyor belt, the resulting fine dust will spread in all directions. Even with dust covers and guards for sealing, factors such as belt misalignment and guard wear can lead to dust leakage. The dust escape rate is as high as 15-20%.
[0005] (2) Passive protection defects: The anti-tear device can only trigger protection after the scratch occurs, and cannot prevent the initial damage. Belt scratches are mostly caused by sharp foreign objects mixed in with the material, which directly pierce the belt when falling and get stuck in the feed port. As the belt continues to rotate, it causes irreversible damage. Utility Model Content
[0006] This utility model addresses the shortcomings of existing technologies by providing a closed-type side-guided belt conveyor feeding device that is fast to start, highly efficient, safe, reliable, and easy to operate.
[0007] This utility model is achieved through the following technical solution: a closed-type lateral guide belt conveyor feeding device is provided, including a dust cover covering the conveyor belt and a feeding pipe vertically inserted into the dust cover. The dust cover is opened at one end along the conveyor belt traveling direction, and the lower end of the feeding pipe is sealed by a sealing base plate. A feeding port is opened on the side wall of the feeding pipe along the conveyor belt traveling direction. The height difference between the lower end of the feeding port and the upper surface of the sealing base plate is H, where H is 50 mm-150 mm.
[0008] In this design, powdery material falls from the feed pipe onto the sealing base plate and then flows out through the feed port onto the conveyor belt. Since the material flows out of the feed port in the same direction as the conveying direction, dust generation is reduced. An external dust cover prevents overflow, and a dust collector collects the dust. Because the material impacts the sealing base plate, it does not impact the conveyor belt. Furthermore, the material's outflow direction aligns with the conveying direction, reducing friction between the material and the conveyor belt and extending its service life. The height difference between the lower end of the feed port and the upper surface of the sealing base plate ensures that material is always present on the sealing base plate, thus reducing the impact on the sealing base plate during material fall.
[0009] As an optimization, the discharge port is rectangular, making its bottom surface horizontal and facilitating material flow out from the bottom.
[0010] As an optimization, the upper surface of the dust cover has a dust collector connection port. In this design, the dust collector connection port is used to connect to the suction pipe of the dust collector, thereby drawing dust from inside the dust cover into the dust collector and preventing dust from overflowing from the opening of the dust cover.
[0011] As an optimization, the height difference between the lower end of the feed pipe and the conveyor belt is 50 mm - 150 mm.
[0012] As an optimization, a guide plate is hinged to the side of the feed pipe away from the feed inlet, and an adjustment mechanism for adjusting the tilt angle of the guide plate is also included. This solution uses a guide plate inside the feed pipe to guide the material flow towards the feed inlet, and the angle of the guide plate is adjusted by the adjustment mechanism.
[0013] As an optimization, the adjusting mechanism includes an adjusting screw that extends horizontally through the dust cover. A connecting sleeve, threadedly connected to the adjusting screw, is fixedly connected to the feed pipe. A connecting piece is axially connected to the end of the adjusting screw, and a connecting plate is fixedly connected to the back of the guide plate. The connecting plate has an elongated hole, and a pin passes through the connecting piece and the elongated hole. In this design, the axial position of the adjusting screw can be adjusted by rotating it, thereby driving the guide plate to adjust its angle via the connecting piece.
[0014] As an optimization, a handwheel is fixed to one end of the adjusting screw that protrudes from the dust cover. This facilitates manual rotation of the adjusting screw.
[0015] The beneficial effects of this utility model are as follows: This utility model's enclosed lateral guide belt conveyor feeding device effectively overcomes the technical limitations of traditional feeding ports in dust control and belt protection through structural innovation. Its core beneficial effects are reflected in the systematic suppression of dust generation and escape, and the shift from passive response to active prevention in belt protection mechanisms. Material falls through the lateral opening along the belt's movement direction, greatly reducing the impact velocity and significantly decreasing dust generation. Combined with an enclosed dust cover and external dust removal equipment, a multi-level control and collection system is formed, significantly reducing the dust escape rate. Simultaneously, the material is buffered by the sealed base plate and the accumulation buffer layer, avoiding direct impact and friction on the belt. This not only reduces equipment wear and extends belt life but also mitigates the risk of direct puncture by foreign objects through material accumulation, preventing belt tearing at the source and achieving active tear protection. This structure balances material flow smoothness, sealing reliability, and maintenance convenience, comprehensively improving the system's environmental friendliness, safety, and economy. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a front view of the present utility model;
[0018] Figure 3 This is a side view of the present invention;
[0019] Figure 4 This utility model Figure 2 Sectional view of plane AA;
[0020] Figure 5 This utility model Figure 4 Enlarged view of section B;
[0021] As shown in the figure:
[0022] 1. Dust cover, 2. Feed pipe, 3. Conveyor belt, 4. Sealing base plate, 5. Feed port, 6. Guide plate, 7. Adjusting screw, 8. Handwheel, 9. Connecting plate, 10. Connecting piece, 11. Pin, 12. Dust collector connection port, 13. Connecting sleeve. Detailed Implementation
[0023] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.
[0024] like Figures 1-5As shown, the present invention discloses a closed-type lateral guide belt conveyor feeding device, including a dust cover 1 covering the conveyor belt 3 and a feeding pipe 2 vertically inserted into the dust cover 1. The dust cover 1 is fixedly installed and is a rectangular cover. The feeding pipe 2 is a rectangular tube with a flared mouth at the upper end for easy feeding. The lower end of the feeding pipe 2 is located inside the dust cover 1, and the height difference between the lower end of the feeding pipe 2 and the conveyor belt 3 is 50 mm - 150 mm.
[0025] The dust cover 1 has an opening at one end along the traveling direction of the conveyor belt 3, so that after the material enters the conveyor belt 3 from the feed pipe 2, the material is output outward from the opening. The upper surface of the dust cover 1 has a dust collector connection port 12, which is located between the feed pipe 2 and the opening of the dust cover 1. The dust collector connection port 12 is connected to the suction pipe of the dust collector, thereby sucking the dust inside the dust cover into the dust collector and preventing the dust from overflowing from the opening of the dust cover.
[0026] The lower end of the feeding pipe 2 is sealed by the sealing base plate 4. The feeding pipe 2 has a feeding port 5 on its side wall along the direction of travel of the conveyor belt 3. Therefore, the direction in which the material flows out of the feeding port is consistent with the direction of conveying.
[0027] The discharge port 5 is rectangular. The height difference between the lower end of the discharge port 5 and the upper surface of the sealing base plate 4 is H, where H is 50 mm - 150 mm. During use, the sealing base plate 4 is always covered with a layer of material.
[0028] like Figure 4 , 5 As shown, a guide plate 6 is hinged to the side of the feed pipe 2 away from the feed port 5. The back of the upper end of the guide plate 6 is hinged to the inner wall of the feed pipe 2. Through the inclined guiding effect of the guide plate 6, the material is guided to the feed port 5. Depending on the type of material, such as density and flowability, it may be necessary to adjust the angle of the guide plate 6.
[0029] It also includes an adjustment mechanism for adjusting the tilt angle of the guide plate 6. The adjustment mechanism includes an adjusting screw 7 that extends horizontally through the dust cover 1. A connecting sleeve 13, threadedly connected to the adjusting screw 7, is fixed to the feed pipe 2. The outer end of the adjusting screw 7 is located outside the dust cover 1. A handwheel 8 is fixed to the end of the adjusting screw 7 extending through the dust cover 1 (i.e., the outer end) for easy manual rotation. The inner end of the adjusting screw 7 is located inside the feed pipe 2, and the adjusting screw 7 is parallel to the conveying direction.
[0030] The adjusting screw 7 is axially connected to a connector 10 at its end. The connector 10 is rotatably connected to the inner end of the adjusting screw 7, and the rotating shaft is collinear with the axis of the adjusting screw 7.
[0031] A connecting plate 9 is fixed to the back of the guide plate 6. The connecting plate 9 has an elongated hole. The end of the connector 10 is configured as a fork-shaped structure. The connecting plate 9 is inserted into the fork-shaped structure and passes through the connector 10 and the elongated hole via a pin 11.
[0032] Since the connecting plate 9 is inserted into the fork-shaped structure, the connecting piece 10 is restricted from rotating. Therefore, the connecting piece 10 can only move axially following the adjusting screw 7, while the connecting plate 9 swings with the guide plate 6. The pin 11 passes through the elongated hole to prevent the horizontal movement of the connecting piece 10 from interfering with the swing of the connecting plate 9.
[0033] The method of using this utility model is as follows: When in use, the powdery material falls from the feed pipe 2 onto the sealing base plate 4 and flows out through the feed port 5 onto the conveyor belt 3. Then, it is output from the opening of the dust cover 1 along with the conveyor belt 3. Since the direction of the material flowing out from the feed port is consistent with the conveying direction, the generation of dust is reduced. The external dust cover 1 prevents overflow, and the dust is collected by the dust collector.
[0034] Because the material impacts the sealing base plate 4, it will not impact the conveyor belt 3. Furthermore, the material outflow direction is consistent with the conveying direction, which also reduces the friction between the material and the conveyor belt and improves the service life of the conveyor belt. There is a height difference between the lower end of the discharge port 5 and the upper end of the sealing base plate 4, so there is always material on the sealing base plate 4. Therefore, when the material falls, it impacts the sealing base plate 4, reducing the impact on the sealing base plate 4.
[0035] This application further includes a guide plate 6 inside the feed pipe 2 to guide the material to flow towards the feed port 5. The axial position of the screw 7 can be adjusted by rotating the adjusting screw 7, thereby driving the guide plate 6 to adjust its angle through the connecting piece 10.
[0036] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.
Claims
1. A closed-type lateral guide belt conveyor feeding device, characterized in that: It includes a dust cover (1) covering the conveyor belt (3) and a discharge pipe (2) that penetrates vertically into the dust cover (1). The dust cover (1) is set with an opening at one end along the travel direction of the conveyor belt (3). The lower end of the discharge pipe (2) is sealed by a sealing base plate (4). The discharge pipe (2) has a discharge port (5) on the side wall along the travel direction of the conveyor belt (3). The height difference between the lower end of the discharge port (5) and the upper end of the sealing base plate (4) is H, where H is 50 mm - 150 mm.
2. The closed-type lateral guide belt conveyor feeding device according to claim 1, characterized in that: The feed inlet (5) is rectangular.
3. The closed-type lateral guide belt conveyor feeding device according to claim 1, characterized in that: The dust cover (1) has a dust collector connection port (12) on its upper surface.
4. The closed-type lateral guide belt conveyor feeding device according to claim 1, characterized in that: The height difference between the lower end of the feed pipe (2) and the conveyor belt (3) is 50 mm - 150 mm.
5. The closed-type lateral guide belt conveyor feeding device according to claim 1, characterized in that: The feed pipe (2) has a guide plate (6) hinged on the side away from the feed port (5), and also includes an adjustment mechanism for adjusting the tilt angle of the guide plate (6).
6. The closed-type lateral guide belt conveyor feeding device according to claim 5, characterized in that: The adjustment mechanism includes an adjustment screw (7) that extends horizontally through the dust cover (1), a connecting sleeve (13) that is threadedly connected to the adjustment screw (7) and fixed on the feed pipe (2), a connecting piece (10) is axially connected to the end of the adjustment screw (7), a connecting plate (9) is fixedly connected to the back of the guide plate (6), and an elongated hole is opened on the connecting plate (9), through which a pin (11) passes and the connecting piece (10) and the elongated hole.
7. The closed-type lateral guide belt conveyor feeding device according to claim 6, characterized in that: The adjusting screw (7) has a handwheel (8) fixed to one end that extends out of the dust cover (1).