A dustproof sealing device suitable for a belt conveyor
By designing a dustproof sealing device with side plates, top seal, and bottom seal on the belt conveyor, the problems of complex disassembly and difficult observation in the existing technology are solved, achieving effective dust prevention and efficient maintenance, and improving the operating efficiency of the belt conveyor.
Patent Information
- Application Number
- CN202522041192.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-23
AI Technical Summary
The existing dustproof devices for belt conveyors are complicated to disassemble and install, affecting maintenance efficiency. They also make it difficult to observe the wear of idlers and belts, increasing the labor intensity of workers and reducing work efficiency.
A dustproof sealing device comprising a side plate, a top sealing section, and a bottom sealing section was designed. It employs alternating small and large sealing mechanisms, combined with an observation element, to achieve effective sealing of the belt conveyor and allow observation of the internal condition without disassembly.
This approach not only prevents smoke and dust from escaping, but also improves the efficiency of belt conveyor maintenance, reduces labor intensity, increases work efficiency, and ensures the normal operation of production.
Smart Images

Figure CN224677061U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a dustproof sealing device, and more particularly to a dustproof sealing device that can prevent dust from spilling from the belt conveyor to the site during transportation, belonging to the technical field of belt conveyor dustproof equipment. Background Technology
[0002] With the introduction of various national environmental protection policies, dust pollution from conveyor belts in metallurgical enterprises has become a major target for dust control. Existing dust covers on conveyor belts are mostly made of corrugated steel sheets or metal products fixed to the belt supports. However, their disassembly and installation are cumbersome during maintenance or shutdown, and it is difficult to inspect the wear and condition of rollers, belts, etc., hindering the maintenance and inspection of the conveyor belt. This not only increases the labor intensity of workers but also reduces work efficiency. Therefore, a method is needed that, while isolating dust from overflowing, allows workers to quickly observe the internal condition of the conveyor belt and perform maintenance, thereby ensuring normal production operation. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a dustproof sealing device suitable for belt conveyors. It can not only effectively suppress the leakage of smoke and dust from the belt conveyor, but also improve the efficiency of belt conveyor maintenance.
[0004] The problem described in this utility model is solved by the following technical solution: A dustproof sealing device for belt conveyors includes two side plates, a bottom sealing portion, and a top sealing portion. The two side plates are symmetrically arranged on both sides of the belt conveyor frame, and the length direction of the side plates is parallel to the center line of the belt conveyor. The top sealing portion is located between the top surfaces of the two side plates and is directly above the belt. The bottom sealing portion is located between the two sides of the belt conveyor frame and is directly below the idler roller.
[0005] The dustproof sealing device applicable to belt conveyors described above includes a top sealing part comprising a small sealing mechanism and a large sealing mechanism; the top surface of the side plate is provided with two slide rails along its length, the inner one being the inner slide rail and the outer one being the outer slide rail; the small sealing mechanism is disposed between the inner slide rails of the two side plates, and the large sealing mechanism is disposed between the outer slide rails of the two side plates; along the length of the belt conveyor, the small sealing mechanism and the large sealing mechanism are alternately disposed between the two side plates.
[0006] The dustproof sealing device applicable to belt conveyors described above includes a small semi-circular cover; the two end planes of the small semi-circular cover are provided with sliding grooves along the axis of the small semi-circular cover, and the sliding grooves on both sides of the small semi-circular cover are respectively slidably arranged on the inner slide rails of the side plates on both sides; the axis of the small semi-circular cover is parallel to the length direction of the side plate.
[0007] The aforementioned dustproof sealing device for belt conveyors includes a large semi-circular cover and an observation element. The two end planes of the large semi-circular cover have grooves along its axis, and the grooves on both sides of the large semi-circular cover are slidably mounted on the outer slide rails of the side plates on both sides. The axis of the large semi-circular cover is parallel to the length direction of the side plates. Sealing gaskets are provided at both ends of the inner wall of the large semi-circular cover, and the sealing gaskets on both sides press against the outer wall ends of two adjacent small semi-circular covers. The observation element is located on the side wall of the large semi-circular cover.
[0008] The aforementioned dustproof sealing device for belt conveyors includes an observation element comprising a square frame, a sliding transparent plate, and a fixed transparent plate. A square hole is provided on the side wall of the semi-circular cover, and one end of the square frame is aligned with the square hole on the side wall of the semi-circular cover. A fixed transparent plate is provided at the other end of the square frame. A strip-shaped hole is provided on the top surface of the square frame, and the two ends of the inner wall of the strip-shaped hole are aligned with the two ends of the inner wall of the square frame. The sliding transparent plate is inserted into the square frame through the strip-shaped hole at the top of the square frame.
[0009] The aforementioned dustproof sealing device for belt conveyors includes a bottom sealing section comprising vertical plates and horizontal sealing plates. Vertical plates are provided at the bottom ends of both sides of the belt conveyor frame, with the length direction of the vertical plates parallel to the length direction of the side plates. Multiple horizontal sealing plates are arranged along the length direction of the vertical plates between two vertical plates, and both ends of the horizontal sealing plates are fixed to the bottom ends of the vertical plates on both sides by bolts. Sealing gaskets are provided on both side walls of the horizontal sealing plates, and the sealing gaskets on the side walls of adjacent horizontal sealing plates press against each other. The horizontal sealing plates are located directly below the idler rollers.
[0010] The dustproof sealing device applicable to belt conveyors described above is further equipped with a U-shaped positioning fork; positioning holes are provided on both sides of the top of the outer wall of the small semi-circular cover, and positioning holes are provided on both sides of the top of the outer wall of the large semi-circular cover, and the two ends of the U-shaped positioning fork are respectively inserted into the positioning holes of the adjacent large semi-circular cover and small semi-circular cover.
[0011] This invention uses a combination of small and large sealing mechanisms to suppress dust at the top of the conveyor belt, preventing it from overflowing onto the site; the bottom sealing part suppresses dust below; the large and small sealing mechanisms can slide against each other, ensuring that the belt can be quickly exposed for maintenance when needed; and the observation piece allows workers to observe the inside of the conveyor belt without opening the semi-circular cover. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] The list of labels in the diagram is as follows: 1. Side plate, 2. Conveyor frame, 3. Inner slide rail, 4. Outer slide rail, 5. Small semi-circular cover, 6. Large semi-circular cover, 7. Square frame, 8. Sliding transparent plate, 9. Fixed transparent plate, 10. Vertical plate, 11. Horizontal sealing plate, 12. U-shaped positioning fork. Detailed Implementation
[0014] See Figure 1 This utility model includes two side plates 1, a bottom sealing portion, and a top sealing portion; the number of side plates 1 is two, and they are symmetrically arranged on both sides of the belt conveyor frame 2, with the length direction line of the side plates 1 parallel to the center line of the belt conveyor; the top sealing portion is located between the top surfaces of the two side plates 1, and the top sealing portion is located directly above the belt; the bottom sealing portion is located between the two sides of the belt conveyor frame, and the bottom sealing portion is located directly below the idler roller; the top sealing portion can prevent dust from the belt conveyor from overflowing from above, and the bottom sealing portion can prevent smoke and dust from the belt conveyor from overflowing from below.
[0015] The top sealing part includes a small sealing mechanism and a large sealing mechanism; the top surface of the side plate 1 is provided with two slide rails along its length direction, the inner one being the inner slide rail 3 and the outer one being the outer slide rail 4; the small sealing mechanism is located between the inner slide rails 3 of the two side plates 1, and the large sealing mechanism is located between the outer slide rails 4 of the two side plates 1; the small sealing mechanism can slide along the guide of the inner slide rail 3, and the large sealing mechanism can slide along the guide of the outer slide rail 4; along the length direction of the belt conveyor, the small sealing mechanism and the large sealing mechanism are alternately arranged between the two side plates 1, that is, the small sealing mechanism and the large sealing mechanism are staggered on the side plates 1.
[0016] The small sealing mechanism includes a small semi-circular cover 5; the two end planes of the small semi-circular cover 5 are provided with sliding grooves along the axis of the small semi-circular cover 5, and the sliding grooves on both sides of the small semi-circular cover 5 are respectively slidably arranged on the inner slide rails 3 of the side plates 1 on both sides; the small semi-circular cover 5 can slide on the inner slide rails 3 under manual pushing, thereby removing its obstruction to the belt conveyor, which facilitates the maintenance of the belt conveyor by the staff; the axis of the small semi-circular cover 5 is parallel to the length direction line of the side plate 1.
[0017] The large sealing mechanism includes a large semi-circular cover 6 and an observation piece. The two ends of the large semi-circular cover 6 have grooves along its axis, and these grooves on both sides of the large semi-circular cover 6 are slidably mounted on the outer slide rails 4 of the side plates 1 on both sides. Manual pushing allows the large semi-circular cover 6 to slide on the outer slide rails 4, thus removing its obstruction of the conveyor belt and facilitating maintenance by personnel. The axis of the large semi-circular cover 6 is parallel to the length direction of the side plates 1. Sealing gaskets are provided at both ends of the inner wall of the large semi-circular cover 6, and the sealing gaskets on both sides press against the outer wall ends of two adjacent small semi-circular covers 5. The large semi-circular cover 6 is sealed to the two adjacent small semi-circular covers 5 through the sealing gaskets on both sides, preventing smoke and dust from escaping from the gap between the large and small semi-circular covers. The observation piece is located on the side wall of the large semi-circular cover 6. The function of the observation piece is to allow personnel to directly observe the inside of the conveyor belt and check its normal operation without moving the semi-circular cover.
[0018] The observation device includes a square frame 7, a sliding transparent plate 8, and a fixed transparent plate 9. A square hole is provided on the side wall of the semi-circular cover 6, and one end of the square frame 7 is aligned with the square hole on the side wall of the semi-circular cover 6. The other end of the square frame 7 is provided with the fixed transparent plate 9. A strip-shaped hole is provided on the top surface of the square frame 7, and the two ends of the inner wall of the strip-shaped hole are aligned with the two ends of the inner wall of the square frame 7. The sliding transparent plate 8 is inserted into the square frame 7 through the strip-shaped hole at the top of the square frame 7. When the sliding transparent plate 8 is unclear, it can be removed for cleaning. Under normal circumstances, maintenance personnel can directly observe the operation of the conveyor belt through the sliding transparent plate 8 and the fixed transparent plate 9.
[0019] The bottom sealing section includes vertical plates 10 and horizontal sealing plates 11; vertical plates 10 are provided at the bottom ends of both sides of the conveyor frame 2, and the length direction of the vertical plates 10 is parallel to the length direction of the side plate 1; there are multiple horizontal sealing plates 11, which are arranged between two vertical plates 10 along the length direction of the vertical plates 10, and the two ends of the horizontal sealing plates 11 are fixed to the bottom ends of the vertical plates 10 on both sides by bolts; sealing gaskets are provided on both side walls of the horizontal sealing plates 11, and the sealing gaskets on the side walls of two adjacent horizontal sealing plates 11 press against each other; when it is necessary to inspect the conveyor from the bottom end of the conveyor, the bolts are unscrewed and the horizontal sealing plates 11 are removed for operation; the horizontal sealing plates 11 are located directly below the idler rollers.
[0020] A U-shaped positioning fork 12 is added; positioning holes are provided on both sides of the top of the outer wall of the small semicircular cover 5, and positioning holes are provided on both sides of the top of the outer wall of the large semicircular cover 6. The two ends of the U-shaped positioning fork 12 are respectively inserted into the positioning holes of the adjacent large semicircular cover 6 and small semicircular cover 5. The adjacent semicircular covers can be connected together by the U-shaped positioning fork 12, which further avoids the gap caused by relative displacement between the two semicircular covers when no one is operating.
[0021] Operating principle: Under normal circumstances, the sealing gaskets at both ends of the inner wall of the large semi-circular cover 6 press against the outer wall ends of the two adjacent small semi-circular covers 5 to seal. During routine inspections, the internal operation of the conveyor belt can be directly observed through the transparent plate. If the view is unclear, remove the sliding transparent plate for cleaning, and then reinstall it. When a fault is found or other reasons require operation inside the conveyor belt, remove the two U-shaped positioning forks on the semi-circular cover corresponding to the operation position, then slide the semi-circular cover corresponding to the operation position to expose the inside of the conveyor belt, and then perform the operation. After the operation is completed, reset the U-shaped positioning forks and restore the initial state.
Claims
1. A dustproof sealing device suitable for belt conveyors, characterized in that: It includes a side plate (1), a bottom sealing part and a top sealing part; there are two side plates (1), which are symmetrically arranged on both sides of the belt conveyor frame (2), and the length direction line of the side plate (1) is parallel to the center line of the belt conveyor; the top sealing part is arranged between the top surfaces of the two side plates (1), and the top sealing part is located directly above the belt; the bottom sealing part is arranged between the two sides of the belt conveyor frame, and the bottom sealing part is located directly below the idler roller.
2. The dustproof sealing device for belt conveyors according to claim 1, characterized in that: The top sealing part includes a small sealing mechanism and a large sealing mechanism; the top surface of the side plate (1) is provided with two slide rails along its length direction, the inner one being the inner slide rail (3) and the outer one being the outer slide rail (4); the small sealing mechanism is located between the inner slide rails (3) of the two side plates (1), and the large sealing mechanism is located between the outer slide rails (4) of the two side plates (1); along the length direction of the belt conveyor, the small sealing mechanism and the large sealing mechanism are alternately arranged between the two side plates (1).
3. The dustproof sealing device for belt conveyors according to claim 2, characterized in that: The small sealing mechanism includes a small semi-circular cover (5); the two end planes of the small semi-circular cover (5) are provided with sliding grooves along the axis of the small semi-circular cover (5), and the sliding grooves on both sides of the small semi-circular cover (5) are respectively slidably arranged on the inner slide rails (3) of the side plates (1) on both sides; the axis of the small semi-circular cover (5) is parallel to the length direction of the side plate (1).
4. The dustproof sealing device for belt conveyors according to claim 3, characterized in that: The large sealing mechanism includes a large semi-circular cover (6) and an observation piece; the two end planes of the large semi-circular cover (6) are provided with sliding grooves along the axis of the large semi-circular cover (6), and the sliding grooves on both sides of the large semi-circular cover (6) are respectively slidably arranged on the outer slide rails (4) of the side plates (1) on both sides; the axis of the large semi-circular cover (6) is parallel to the length direction of the side plate (1); the two ends of the inner wall of the large semi-circular cover (6) are provided with sealing gaskets, and the sealing gaskets on both sides are respectively pressed against the outer wall ends of two adjacent small semi-circular covers (5); the observation piece is arranged on the side wall of the large semi-circular cover (6).
5. The dustproof sealing device for belt conveyors according to claim 4, characterized in that: The observation device includes a square frame (7), a sliding transparent plate (8), and a fixed transparent plate (9); a square hole is provided on the side wall of the semi-circular cover (6), and one end of the square frame (7) is connected to the square hole on the side wall of the semi-circular cover (6), and a fixed transparent plate (9) is provided on the other end of the square frame (7); a strip-shaped hole is provided on the top surface of the square frame (7), and the two ends of the inner wall of the strip-shaped hole are respectively aligned with the two ends of the inner wall of the square frame (7), and the sliding transparent plate (8) is inserted into the square frame (7) through the strip-shaped hole at the top of the square frame (7).
6. The dustproof sealing device for belt conveyors according to claim 5, characterized in that: The bottom sealing part includes vertical plates (10) and horizontal sealing plates (11); both sides of the bottom of the belt conveyor frame (2) are provided with vertical plates (10), and the length direction of the vertical plates (10) is parallel to the length direction of the side plate (1); there are multiple horizontal sealing plates (11), and they are arranged between two vertical plates (10) along the length direction of the vertical plates (10), and the two ends of the horizontal sealing plates (11) are fixed to the bottom of the vertical plates (10) on both sides by bolts; both sides of the horizontal sealing plates (11) are provided with sealing gaskets, and the sealing gaskets on the side walls of two adjacent horizontal sealing plates (11) are pressed against each other; the horizontal sealing plates (11) are located directly below the idler roller.
7. The dustproof sealing device for belt conveyors according to claim 6, characterized in that: A U-shaped positioning fork (12) is added; positioning holes are provided on both sides of the top of the outer wall of the small semicircular cover (5), and positioning holes are provided on both sides of the top of the outer wall of the large semicircular cover (6), and the two ends of the U-shaped positioning fork (12) are respectively inserted into the positioning holes of the adjacent large semicircular cover (6) and small semicircular cover (5).