Belt conveyor sealing device capable of preventing dust from escaping

Abstract

A belt conveyor sealing device capable of preventing dust from escaping belongs to the technical field of belt conveyor equipment and is used for preventing dust of a belt conveyor from escaping. According to the technical scheme, a plurality of upper sealing units are connected with one another and installed above an upper belt of the belt conveyor, and a plurality of lower sealing units are connected with one another and installed on the outer side of a lower belt of the belt conveyor; the upper sealing unit is provided with a plurality of L-shaped supporting frames which are located on the two sides of the upper portion of an upper belt respectively, and the front ends of the L-shaped supporting frames are connected with the upper ends of the two sides of a closed dust cover. The lower sealing unit is provided with support frames which are welded to the tops of the two sides of the middle frame of the belt conveyor respectively, and a plurality of movable baffles are sequentially hung on the outer sides of the two support frames through hooks. The dust-proof device is simple in structure, convenient to use and good in dust-proof effect, dust on the upper belt surface and the return lower belt surface of the belt conveyor can be effectively blocked in a closed space, the purpose of preventing the dust from being discharged outwards is achieved, the production operation environment is greatly improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to a sealing device for preventing dust from escaping from a belt conveyor, and belongs to the technical field of belt conveyor equipment. Background Technology

[0002] Belt conveyors are widely used in metallurgy, mining, power and other industries to transport various materials. However, belt conveyors are prone to dust and material spillage during material transport, causing environmental pollution. With increasingly stringent national environmental protection requirements, steel mills are seeking ways to control fugitive emissions from belt conveyors. Currently, a closed system is used to address this issue, with the upper enclosure structure using 0.8mm thick curved color steel plates to completely enclose the upper idlers of the belt conveyor, with gates opening every 10m. However, the curved plates are prone to bending, and the operation of the idlers cannot be observed, making maintenance and upkeep difficult. This system does not adequately meet production needs and necessitates improvement. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a belt conveyor sealing device that can prevent dust from escaping. This sealing device can effectively control the dust from the belt conveyor, reduce dust pollution caused by floating in the air, reduce noise, protect the environment, reduce the failure rate of the belt conveyor, improve safety, occupy less space, be easy to disassemble and install, allow direct observation of the operation of the idler rollers, and make the maintenance and upkeep of the idler rollers more convenient.

[0004] The technical solution to the above technical problem is:

[0005] A belt conveyor sealing device that can prevent dust from escaping includes an upper sealing unit and a lower sealing unit. Multiple upper sealing units are interconnected and installed above the upper belt of the belt conveyor, and multiple lower sealing units are interconnected and installed on the outside of the lower belt of the belt conveyor.

[0006] The upper sealing unit includes an L-shaped support frame, a closed dust cover, and unit connecting angle steel. Multiple L-shaped support frames are arranged sequentially on both sides above the upper belt. The lower ends of the multiple L-shaped support frames are vertically fixed to the two side frames of the belt conveyor's intermediate frame. The front ends of the multiple L-shaped support frames are connected to the upper ends of both sides of the closed dust cover. The closed dust cover is an N-shaped cross-section cover. The lower ends of the two sides of the N-shaped cover of the closed dust cover are opposite to the two side surfaces of the upper belt of the belt conveyor. Unit connecting angle steel is fixed at both ends of the top plate of the N-shaped cover of the closed dust cover. The two ends of two adjacent upper sealing units are connected by connecting bolts through the unit connecting angle steel of the top plate of the closed dust cover.

[0007] The lower sealing unit includes a support frame and movable baffles. The support frame is a rectangular plate frame, and its length is along the length of the belt conveyor. Two support frames are welded to the top of both sides of the middle frame of the belt conveyor. The movable baffles are square plate frames with hooks at the top. Multiple movable baffles are sequentially suspended on the outside of the two support frames via the hooks. The lower ends of the multiple movable baffles are respectively opposite to the foundation surface of the ground.

[0008] The aforementioned conveyor belt sealing device, which prevents dust from escaping, comprises an L-shaped support frame for the upper sealing unit, consisting of vertical and horizontal support angle steels. Multiple vertical support angle steels are located on both sides of the conveyor belt, with their lower ends connected to the two side frames of the conveyor belt's intermediate frame via U-shaped fixing bolts. The upper ends of the vertical support angle steels are welded to the rear ends of the horizontal support angle steels. The N-shaped dust cover consists of a top plate, side plates, and a central angle steel, with the central angle steel running along the length of the dust cover. The two sides of the horizontal top plate and the upper ends of the two vertical side plates are bolted to the horizontal and vertical surfaces of the two central angle steels, respectively. The two sides of the top plate of the dust cover are located below the front ends of the horizontal support angle steels, and the front ends of the horizontal support angle steels are connected to the top plate of the dust cover via fixing bolts. There are gaps between the lower ends of the two side plates of the dust cover and the two sides of the upper belt of the conveyor belt.

[0009] The aforementioned conveyor belt sealing device, which prevents dust from escaping, has two connecting holes at the lower end of the vertical support angle steel of the L-shaped support frame of the upper sealing unit. The distance between the two connecting holes matches the width of the two side frames of the conveyor belt intermediate frame. The two side screws of the U-shaped fixing bolt are respectively opposite to the screw connection holes of the vertical support angle steel. The U-shaped ring of the U-shaped fixing bolt is fitted on the frame of the conveyor belt intermediate frame. The two side screws of the U-shaped fixing bolt pass through the screw connection holes of the vertical support angle steel, and the nut is tightened to the screw of the U-shaped fixing bolt.

[0010] The belt conveyor sealing device described above, which can prevent dust from escaping, has a top plate of a closed dust cover in the upper sealing unit made of steel plate and a side plate made of rubber plate. The thickness of the rubber plate is greater than 5mm, and the gap between the lower end of the rubber plate and the surface of the upper belt is greater than or equal to 5mm.

[0011] The aforementioned conveyor belt sealing device, which prevents dust from escaping, comprises a lower sealing unit with a support frame consisting of support angle steel and a support top plate. Two support angle steels are located at both ends of the lower sealing unit, with one end of each angle steel vertically welded to the top of the conveyor belt's intermediate frame. The support top plate is a rectangular steel plate, with its length and width matching the distance between the two support angle steels and their respective lengths. Both ends of the support top plate are welded to the upper surfaces of the two support angle steels. The square frame of the movable baffle is constructed by welding angle steel into a square frame, with a steel plate laid on the outside of the frame and secured with bolts. Hooks are located on both sides of the upper end of the movable baffle, and hanging holes are present on the surface of the steel plate of the support top plate. The hooks at the upper end of the movable baffle are suspended from the hanging holes of the support top plate.

[0012] The aforementioned conveyor belt sealing device, which prevents dust from escaping, has two hooks on the upper end of the movable baffle of the lower sealing unit. Each hook is made of flat steel bent into an L-shape. The rear end of the horizontal plate of the L-shaped hook is welded to the top surface of the square frame of the movable baffle. The vertical plate of the L-shaped hook is inserted into the hanging hole of the bracket top plate of the bracket frame from the front downward of the movable baffle. Two handles are installed on the top surface of the square frame of the movable baffle inside the two hooks. The handles are U-shaped rods with threads on the lower ends of the two sides of the rod. The top surface of the square frame of the movable baffle has connecting holes. The two sides of the rod pass through the connecting holes on the top surface of the square frame of the movable baffle and are fixedly connected by nuts.

[0013] The beneficial effects of this utility model are:

[0014] The upper sealing unit of this utility model is fixed on the intermediate frame of the belt conveyor. The enclosed dust cover forms a rectangular enclosed space on the upper part of the belt, which can effectively control the overflow of dust. The height of the rubber plate on the side plate of the enclosed dust cover is sufficient to allow for the normal operation of materials on the upper belt surface, with appropriate margin. The gap between the lower part of the rubber plate and the upper belt surface is not less than 5mm, which can prevent large pieces of material on the upper belt surface from overflowing, jamming, or scratching the belt. Multiple upper sealing units are connected in sequence by unit connecting angle steel, which facilitates the installation and disassembly of the upper sealing structure. The movable baffle of the lower sealing unit of this utility model can seal the top of the intermediate frame of the belt conveyor to the foundation surface, preventing dust from escaping from the lower belt during the return stroke of the belt conveyor. The top plate of the bracket frame above the movable baffle can prevent dust from escaping from above. The hook hangs the movable baffle on the bracket frame for easy disassembly and assembly, and the handle facilitates disassembly and assembly operations.

[0015] This utility model has a simple structure, is easy to use, and has a good dustproof effect. It can effectively block the dust from the upper belt surface and the return lower belt surface of the conveyor belt in a closed space, thereby achieving the purpose of preventing dust from being emitted to the outside. It greatly improves the working environment of the production plant. It also has the advantages of occupying less space, being easy to disassemble and install, allowing direct observation of the operation of the idler rollers, and making the maintenance and upkeep of the idler rollers more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is the front view of the upper sealing unit;

[0018] Figure 3 yes Figure 2 Side view;

[0019] Figure 4 This is a side view of the lower sealing unit;

[0020] Figure 5 This is a structural diagram of the movable baffle.

[0021] The diagram is labeled as follows: 1. Belt conveyor; 2. Belt conveyor intermediate frame; 3. Belt roller; 4. Upper belt; 5. Lower belt; 6. Upper sealing unit; 7. Lower sealing unit; 8. L-shaped support frame; 9. Enclosed dust cover; 10. Unit connecting angle steel; 11. Connecting bolt; 12. Vertical support angle steel; 13. Horizontal support angle steel; 14. Top plate; 15. Side plate; 16. Intermediate angle steel; 17. Fixing bolt; 18. Support frame; 19. Movable baffle; 20. Hook; 21. Support angle steel; 22. Support top plate; 23. U-shaped fixing bolt; 24. Nut; 25. Handle. Detailed Implementation

[0022] This utility model consists of an upper sealing unit 6 and a lower sealing unit 7.

[0023] Figure 1 As shown, multiple upper sealing units 6 are interconnected and installed above the upper belt 4 of the conveyor 1, and multiple lower sealing units 7 are interconnected and installed on the outside of the lower belt 5 of the conveyor 1. The upper sealing units 6 form a rectangular enclosed space above the upper belt 4 of the conveyor 1, which can effectively control the overflow of dust. The movable baffle 19 of the lower sealing unit 7 can seal the top of the intermediate frame 2 of the conveyor to the base surface, preventing dust from escaping from the return lower belt 5 of the conveyor 1.

[0024] Figure 1The upper sealing unit 6 includes an L-shaped support frame 8 and a sealed dust cover 9. Multiple L-shaped support frames 8 are arranged sequentially on both sides above the upper belt 4. The lower ends of the multiple L-shaped support frames 8 are vertically fixed to the two side frames of the belt conveyor's intermediate frame 2. The front ends of the multiple L-shaped support frames 8 are connected to the upper ends of both sides of the sealed dust cover 9. The sealed dust cover 9 has an N-shaped cross-section. The lower ends of the two sides of the N-shaped cover 9 are opposite to the two side surfaces of the upper belt 4 of the belt conveyor 1. Unit connecting angle steels 10 are fixed to the upper ends of the N-shaped cover 9. The two ends of two adjacent upper sealing units 6 are connected by connecting bolts 11 through the unit connecting angle steels 10 at the upper end of the sealed dust cover 9, forming the upper structure of the overall belt conveyor sealing device.

[0025] Figure 2 , 3 As shown, the L-shaped support frame 8 is composed of vertical support angle steel 12 and horizontal support angle steel 13. Multiple vertical support angle steels 12 are located on both sides of the belt conveyor 1. The lower ends of the multiple vertical support angle steels 12 are connected to the two side frames of the belt conveyor intermediate frame 2 by U-shaped fixing bolts 23. The upper ends of the multiple vertical support angle steels 12 are welded to the rear ends of the multiple horizontal support angle steels 13.

[0026] Figure 2 , 3 As shown, the lower end of the vertical support angle steel 12 of the L-shaped support frame 8 has two screw connection holes. The distance between the two connection holes matches the width of the two side frames of the belt conveyor intermediate frame 2. The two side screws of the U-shaped fixing bolt 23 are respectively opposite to the screw connection holes of the vertical support angle steel 12. The U-shaped ring of the U-shaped fixing bolt 23 is fitted on the frame of the belt conveyor intermediate frame 2. The two side screws of the U-shaped fixing bolt 23 pass through the screw connection holes of the vertical support angle steel 12. The nut 24 is tightened to the screw of the U-shaped fixing bolt 23.

[0027] Figure 2 , 3 The enclosed dust cover 9, as shown, consists of a top plate 14, side plates 15, and a central angle steel 16. The central angle steel 16 runs along the length of the enclosed dust cover 9. The two sides of the horizontal top plate 14 and the upper ends of the two vertical side plates 15 are bolted to the horizontal and vertical surfaces of the two central angle steels 16, respectively. The two sides of the top plate 14 of the enclosed dust cover 9 are located below the front ends of the horizontal support angle steel 13. The front ends of the horizontal support angle steel 13 are connected to the top plate of the enclosed dust cover 9 by fixing bolts 17. There are gaps between the lower ends of the two side plates 15 of the enclosed dust cover 9 and the two side surfaces of the upper belt 4 of the conveyor belt 1. The enclosed dust cover 9 forms a rectangular enclosed space above the upper belt 4 of the conveyor belt 1, effectively controlling dust spillage.

[0028] Figure 2 ,3 The enclosed dust cover 9 has a top plate 14 made of steel and side plates 15 made of rubber. The rubber plates are thicker than 5mm, and the gap between the lower end of the rubber plate and the surface of the upper belt 4 is greater than or equal to 5mm. The height of the rubber plates 15 is sufficient to allow for the normal operation of materials within the upper belt 4, with adequate margin. The gap between the lower part of the rubber plate and the surface of the upper belt 4 is not less than 5mm, which can prevent large pieces of material on the upper belt 4 from overflowing, jamming, or scratching the belt.

[0029] Figure 1 The lower sealing unit 7 includes a support frame 18 and movable baffles 19. The support frame 18 is a rectangular plate frame, its length extending along the length of the conveyor belt 1. Two support frames 18 are welded to the top of both sides of the middle frame 2 of the conveyor belt. The movable baffles 19 are square plate frames, with hooks 20 at their upper ends. Multiple movable baffles 19 are sequentially suspended from the outside of the two support frames 18 via the hooks 20, with their lower ends facing the foundation surface. The movable baffles 19 can seal the top of the middle frame 2 of the conveyor belt to the foundation surface, preventing dust from escaping from the lower belt 5 during the return stroke of the conveyor belt 1.

[0030] Figure 4 , 5 The lower sealing unit 7's support frame 18 is composed of support angle steel 21 and support top plate 22. The minimum length of the lower sealing unit 7 is 1.5m. The two support angle steels 21 are 1.5m apart and 150mm long. One end of each support angle steel 21 is vertically welded to the top of the belt conveyor's intermediate frame 2. The support top plate 22 is a rectangular steel plate. Its length and width match the distance between the two support angle steels 21 and their lengths, respectively (1.5m and 150mm). Both ends of the support top plate 22 are welded to the upper surfaces of the two support angle steels 21. The support top plate 22 prevents dust from escaping from above the support frame 18.

[0031] Figure 4 , 5 The movable baffle 19 has a square frame welded from angle steel, with steel plates laid on the outside and secured with bolts. Hooks 20 are located on both sides of the upper end of the movable baffle 19. Each hook 20 is made of flat steel bent into an L-shape, with each flat steel bar being 80mm long. The rear end of the horizontal plate of the L-shaped hook 20 is welded to the top surface of the square frame of the movable baffle 19, while the vertical plate of the L-shaped hook 20 points downwards from the front of the movable baffle 19. The steel plate surface of the support top plate 22 has hanging holes. The front vertical plates of the hooks 20 at the upper end of the movable baffle 19 are inserted into the hanging holes of the support top plate 22, suspending the movable baffle 19 on the support top plate 22 of the support frame 18. This suspension structure facilitates the installation and disassembly of the movable baffle 19.

[0032] Figure 4 , 5 As shown, two handles 25 are installed on the top surface of the rectangular frame of the movable baffle 19, and the two handles 25 are located inside the two hooks 20. The handles 25 are U-shaped rods, and the lower ends of the two sides of the rods of the handles 25 are threaded. The top surface of the rectangular frame of the movable baffle 19 has connecting holes, and the two sides of the rods of the handles 25 pass through the connecting holes on the top surface of the rectangular frame of the movable baffle 19 and are fixedly connected by nuts. The movable baffle 19 can be easily lifted using the handles 25, facilitating disassembly and assembly.

[0033] An embodiment of this utility model is as follows:

[0034] The vertical support angle steel 12 of the L-shaped support frame 8 is 70×70×8mm in size and 790mm in length, and the horizontal support angle steel 13 is 70×70×8mm in size and 310mm in length.

[0035] The top plate 14 of the enclosed dust cover 9 is made of steel plate, with a length of 1500mm, a width of 604mm, and a thickness of 3mm. The side plate 15 is made of rubber plate, with a length of 1500mm, a width of 315mm, and a thickness of 5mm. The middle angle steel 16 is 50×70×8mm in size and 1500mm in length.

[0036] The length of the support angle steel 21 of the support frame 18 is 150mm, and the length of the support top plate 22 is 1.5m and the width is 150mm.

[0037] The movable baffle 19 is 1500mm long, 762mm wide, and 0.8mm thick;

[0038] The hook 20 is made of flat steel, with a length of 80mm, and is bent into an L-shape;

[0039] The U-shaped fixing bolt 23 has a screw diameter of 12mm, a length of 30mm, and a distance of 134mm between the two screws;

[0040] The two U-shaped bars of handle 25 have a diameter of 16mm, a length of 475mm, and a handle width of 160mm.

Claims

1. A belt conveyor sealing device that prevents dust from escaping, characterized by: It includes an upper sealing unit (6) and a lower sealing unit (7). Multiple upper sealing units (6) are connected to each other and installed above the upper belt (4) of the belt conveyor (1). Multiple lower sealing units (7) are connected to each other and installed outside the lower belt (5) of the belt conveyor (1). The upper sealing unit (6) includes an L-shaped support frame (8), a closed dust cover (9), and a unit connecting angle steel (10). Multiple L-shaped support frames (8) are arranged sequentially on both sides above the upper belt (4). The lower ends of multiple L-shaped support frames (8) are vertically fixed to the two sides of the frame of the belt conveyor intermediate frame (2). The front ends of multiple L-shaped support frames (8) are connected to the upper ends of both sides of the closed dust cover (9). The closed dust cover (9) is an N-shaped cover. The lower ends of the two sides of the N-shaped cover of the closed dust cover (9) are opposite to the two sides of the upper belt (4) of the belt conveyor (1). The two ends of the top surface of the N-shaped cover of the closed dust cover (9) are fixed with unit connecting angle steel (10). The two ends of two adjacent upper sealing units (6) are connected by connecting bolts (11) through the unit connecting angle steel (10) on the top surface of the closed dust cover (9). The lower sealing unit (7) includes a bracket frame (18) and a movable baffle (19). The bracket frame (18) is a rectangular plate frame. The length of the bracket frame (18) is along the length of the belt conveyor (1). The two bracket frames (18) are welded to the top of the two sides of the middle frame (2) of the belt conveyor. The movable baffle (19) is a square plate frame. The upper end of the movable baffle (19) has a hook (20). Multiple movable baffles (19) are sequentially suspended on the outside of the two bracket frames (18) through the hooks (20). The lower ends of the multiple movable baffles (19) are respectively opposite to the foundation surface of the ground.

2. The belt conveyor sealing apparatus capable of preventing dust from escaping according to claim 1, characterized by: The L-shaped support frame (8) of the upper sealing unit (6) is composed of vertical support angle steel (12) and horizontal support angle steel (13). Multiple vertical support angle steels (12) are located on both sides of the belt conveyor (1). The lower ends of multiple vertical support angle steels (12) are connected to the two side frames of the belt conveyor intermediate frame (2) by U-shaped fixing bolts (23). The upper ends of multiple vertical support angle steels (12) are welded to the rear ends of multiple horizontal support angle steels (13). The N-shaped cover of the enclosed dust cover (9) is composed of a top plate (14), side plates (15) and a middle angle steel (16). Angle steel (16) runs along the length of the enclosed dust cover (9). The horizontal top plate (14) on both sides and the upper ends of the two vertical side plates (15) are respectively connected to the horizontal and vertical surfaces of the two intermediate angle steels (16) by bolts. The top plate (14) of the enclosed dust cover (9) is located below the front end of the horizontal support angle steel (13). The front end of the horizontal support angle steel (13) is connected to the top plate (14) of the enclosed dust cover (9) by fixing bolts (17). The lower ends of the two side plates (15) of the enclosed dust cover (9) are respectively separated from the surfaces of the upper belt (4) of the belt conveyor (1).

3. The belt conveyor sealing apparatus capable of preventing dust from escaping according to claim 2, characterized by: The lower end of the vertical support angle steel (12) of the L-shaped support frame (8) of the upper sealing unit (6) has two connecting holes. The distance between the two connecting holes matches the width of the two side frames of the belt conveyor intermediate frame (2). The two side screws of the U-shaped fixing bolt (23) are respectively opposite to the screw connection holes of the vertical support angle steel (12). The U-shaped ring of the U-shaped fixing bolt (23) is fitted on the frame of the belt conveyor intermediate frame (2). The two side screws of the U-shaped fixing bolt (23) pass through the screw connection holes of the vertical support angle steel (12). The nut (24) is tightened to the screw of the U-shaped fixing bolt (23).

4. The belt conveyor sealing apparatus capable of preventing dust from escaping according to claim 3, characterized by: The top plate (14) of the closed dust cover (9) of the upper sealing unit (6) is a steel plate, and the side plate (15) is a rubber plate. The thickness of the rubber plate is greater than 5mm, and the gap between the lower end of the rubber plate and the surface of the upper belt (4) is greater than or equal to 5mm.

5. The belt conveyor sealing apparatus capable of preventing dust from escaping according to claim 1, characterized by: The bracket frame (18) of the lower sealing unit (7) consists of bracket angle steel (21) and bracket top plate (22). The two bracket angle steels (21) are located at both ends of the lower sealing unit (7). One end of the two bracket angle steels (21) is vertically welded to the top of the belt conveyor intermediate frame (2). The bracket top plate (22) is a rectangular steel plate. The length and width of the bracket top plate (22) are matched with the distance between the two bracket angle steels (21) and the length of the bracket angle steels (21). The two ends of the bracket top plate (22) are welded to the upper surface of the two bracket angle steels (21). The square frame of the movable baffle (19) is welded from angle steel into a square frame. The outer side of the square frame is covered with steel plate and fixed with bolts. There are hooks (20) on both sides of the upper end of the movable baffle (19). There are hanging holes on the steel plate surface of the bracket top plate (22). The hooks (20) at the upper end of the movable baffle (19) are hung on the hanging holes of the bracket top plate (22).

6. The belt conveyor sealing apparatus capable of preventing dust from escaping according to claim 5, characterized by: The lower sealing unit (7) has two hooks (20) on the upper end of the movable baffle (19). The two hooks (20) are bent into L-shapes by flat steel. The rear end of the horizontal plate of the L-shaped hook (20) is welded to the top surface of the square frame of the movable baffle (19). The vertical plate of the L-shaped hook (20) is inserted into the hanging hole of the bracket top plate (22) of the bracket frame (18) in the front direction of the movable baffle (19). Two handles (25) are installed on the top surface of the square frame of the movable baffle (19) inside the two hooks (20). The handles (25) are U-shaped rods. The lower ends of the two sides of the handle (25) are threaded. The top surface of the square frame of the movable baffle (19) has a connection hole. The two sides of the handle (25) pass through the connection hole of the top surface of the square frame of the movable baffle (19) and are fixedly connected by nuts.

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