A self-adjusting skirt negative pressure dust collection system based on a belt conveyor

Abstract

A self-adjusting skirted negative pressure dust collection system based on a belt conveyor includes a dust suppression hood, side skirts, hinges, and flow guides. The dust suppression hood is positioned above the conveyor belt. One end of the dust suppression hood is closed, and the other end is open. Side skirts are fixedly installed at both ends of the dust suppression hood, and hinges are installed on the side skirts. One side of the hinge is fixedly installed on the side skirt, and several flow guides are rotatably installed on the other side of the hinge. The two sides of the hinge are elastically connected. The flow guides are rotated by an adjustment device. This invention utilizes the pressure difference between the inside and outside of the dust suppression hood caused by the movement of the conveyor belt to draw floating dust into the dust suppression hood and leave it on the conveyor belt. It achieves good dust collection without the need for other power, and the angle of the flow guides can be freely adjusted to adapt to different airflow directions brought by the forward or reverse movement of the conveyor belt.

Description

Technical Field

[0001] This utility model relates to the field of dust suppression technology for belt conveyors, and in particular to a self-adjusting skirt negative pressure dust collection system based on a belt conveyor. Background Technology

[0002] In industrial production, belt conveyors are widely used in mining, metallurgy, building materials, and ports as key equipment for transporting bulk materials. However, during operation, the dropping and transfer of materials in the material yard can easily lead to a large amount of dust leakage at the edges of the conveyor belt. This not only causes frequent damage to equipment components such as idlers, rollers, and bearings, resulting in economic losses, but also poses a risk of dust explosions if large amounts of dust accumulate in enclosed spaces, endangering the safety of enterprises and personnel. Current dust treatment processes on the market, such as bag filters and closed-system treatment, suffer from problems such as large footprint, high energy consumption, and unsatisfactory treatment effects.

[0003] Therefore, it is necessary to develop a material transfer dust collection system that can suppress dust at the source, save energy and reduce consumption, achieve ultra-low emissions, and has low operation and maintenance costs to meet the needs of material transfer sites. Utility Model Content

[0004] To address the above problems, this utility model proposes a self-adjusting skirt negative pressure dust collection system based on a belt conveyor. The technical solution used is as follows:

[0005] A self-adjusting skirted negative pressure dust collection system based on a belt conveyor includes a dust suppression hood, side skirts, hinges, and flow guide plates. The dust suppression hood is positioned above the conveyor belt. One end of the dust suppression hood is closed, and the other end is open. Side skirts are fixedly installed at both ends of the dust suppression hood, and hinges are installed on the side skirts. One side blade of each hinge is fixedly installed on the side skirt, and several flow guide plates are rotatably installed on the other side blade. The two sides of the hinge are elastically connected. The flow guide plates are rotated by an adjusting device.

[0006] Furthermore, the adjusting device includes an adjusting plate and an adjusting cylinder; the adjusting plate is slidably mounted on the hinge blade where the flow collecting guide plate is located; the adjusting plate is provided with a limiting groove corresponding to each flow collecting guide plate, and a sliding rod is fixedly installed on the flow collecting guide plate and slidably disposed in the limiting groove; the adjusting plate is driven to slide by the adjusting cylinder.

[0007] Furthermore, the cylinder body of the regulating cylinder is fixedly installed on the blade of the regulating plate, and the telescopic end is fixedly connected to the regulating plate.

[0008] Furthermore, a gap is left between the dust suppression hood and the conveyor belt.

[0009] Furthermore, a soft curtain is installed at one closed end of the dust suppression cover.

[0010] Furthermore, the top of the dust suppression hood is provided with a feed inlet and a recycling channel, and the recycling channel is provided with an inclined surface.

[0011] Furthermore, the two side blades of the hinge are elastically connected together by an elastic connecting rod, and the two ends of the elastic connecting rod are rotatably connected to the two side blades of the hinge, respectively.

[0012] Furthermore, the flow guide plates are evenly arranged and disposed on the bottom surface of the corresponding blades of the hinge, and the flow guide plates are perpendicular to the corresponding blades of the hinge.

[0013] Furthermore, a rotating shaft is fixedly installed on the inner end of the flow guide plate, and is rotatably mounted on the corresponding blade of the hinge via the rotating shaft.

[0014] Because this utility model adopts the above-described technical solution, it has the following advantages:

[0015] 1. This utility model utilizes the combined design of a dust suppression hood, side skirts, hinges, and flow guide plates. By taking advantage of the air pressure difference between the inside and outside of the dust suppression hood caused by the movement of the conveyor belt, floating dust is drawn into the dust suppression hood by the airflow and left on the conveyor belt. It achieves a good dust collection effect without the need for other power, thereby reducing energy consumption while controlling floating dust, effectively improving the quality of the working environment, and protecting the health of employees.

[0016] 2. This utility model, through the combined design of the adjusting plate and the adjusting cylinder, can freely adjust the angle of the flow guide plate to adapt to the airflow in different directions brought by the forward or reverse moving conveyor belt. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front side of the working structure of this utility model.

[0018] Figure 2 This is a front view of the working structure of this utility model.

[0019] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0020] Figure 4 This is a schematic diagram of the assembly structure of the present invention and the transfer belt.

[0021] Figure 5 This utility model Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0022] Figure 6 This is a schematic diagram of the assembly structure of the side skirt, hinge, elastic connecting rod, adjusting plate and adjusting cylinder of this utility model.

[0023] Figure 7 This utility model Figure 6 A magnified schematic diagram of the structure at point C.

[0024] Figure 8 This utility model Figure 6 A magnified schematic diagram of the structure at point D.

[0025] Icon labels:

[0026] 1-Transfer belt; 2-Dust suppression hood; 201-Feed inlet; 202-Recycling channel; 3-Soft curtain; 4-Side skirt; 5-Hinge; 6-Elastic connecting rod; 7-Collecting guide plate; 701-Slide rod; 8-Adjusting plate; 801-Limiting slide groove; 9-Adjusting cylinder. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; however, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0028] In the description of this utility model, it should be noted that the terms "upper", "lower", "in", "out", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example:

[0029] like Figures 1-5 As shown, a self-adjusting skirt negative pressure dust collection system based on a belt conveyor includes a dust suppression cover 2, a side skirt 4, a hinge 5, and a flow guide plate 7.

[0030] The dust suppression hood 2 is installed above the conveyor belt 1 of the conveyor belt, with a gap between them. A soft curtain 3 is installed at the feeding end of the dust suppression hood 2, and the discharging end is open. The top of the dust suppression hood 2 is provided with a feeding port 201 and a recycling channel 202. An inclined surface is provided inside the recycling channel 202. The material enters the dust suppression hood 2 from the feeding port 201. When the material falls on the conveyor belt 1, it will bounce upward. The bounced material collides with the material that falls in later. The falling material is scattered irregularly in all directions, generating floating dust. Some of the floating dust is constrained by the soft curtain 3 and falls onto the conveyor belt 1. Some of the floating dust will move along the recycling channel 202. After it stops, it will fall onto the recycling channel 202 and move downward along the inclined surface of the recycling channel 202, falling onto the conveyor belt 1 again.

[0031] Both ends of the dust suppression cover 2 are fixedly installed with side skirts 4. Hinges 5 are installed on the side skirts 4. One side blade of the hinge 5 is fixedly installed on the side skirt 4, and several flow guide plates 7 are rotatably installed on the other side blade. The two sides of the hinge 5 are elastically connected together by elastic connecting rods 6. The two ends of the elastic connecting rods 6 are rotatably connected to the two sides of the hinge 5 respectively.

[0032] As a specific implementation of this embodiment, the flow guide plates 7 are evenly arranged and set on the bottom surface of the corresponding blades of the hinge 5, and the flow guide plates 7 and the corresponding blades of the hinge 5 are perpendicular to each other; a rotating shaft is fixedly installed on the inner end of the flow guide plate 7, and is rotatably installed on the corresponding blades of the hinge 5 through the rotating shaft, so that the outer end of the flow guide plate 7 can swing around the rotating shaft.

[0033] like Figure 3 and Figures 6-8 As shown, an adjusting plate 8 is slidably installed on the hinge 5 blade where the flow guide plate 7 is located. Each flow guide plate 7 is provided with a limiting groove 801 on the adjusting plate 8. A sliding rod 701 is fixedly installed on the flow guide plate 7 and slidably disposed in the limiting groove 801. The adjusting plate 8 is driven to slide by the adjusting cylinder 9. The adjusting cylinder 9 can be a pneumatic cylinder. The cylinder body is fixedly installed on the blade where the adjusting plate 8 is located, and the telescopic end is fixedly connected to the adjusting plate 8. When the adjusting cylinder 9 drives the adjusting plate 8 to move, the sliding rod 701 slides in the limiting groove 801, and the adjusting plate 8 drives the flow guide plate 7 to rotate.

[0034] The working principle of this embodiment is as follows:

[0035] Since one end of the dust suppression hood 2 is equipped with a soft curtain 3 and the other end is open, the transfer belt 1 will cause a pressure difference between the inside and outside of the dust suppression hood 2 during the movement. The external airflow flows into the dust suppression hood 2 along the flow guide plate 7, so that the floating dust is left on the transfer belt 1, achieving the dust suction effect.

[0036] When conveying large pieces of material (such as coal), the material on the conveyor belt 1 may move to the area below the collecting guide plate 7. When the conveyor belt 1 carries the material past the collecting guide plate 7, the collecting guide plate 7 is passively lifted upward, causing the elastic connecting rod 6 to retract and the hinge 5 to gradually close, in order to prevent the collecting guide plate 7 from being damaged or deformed. Similarly, during the operation of the conveyor belt 1, if residual material adheres to the conveyor belt 1, the same working principle is adopted to prevent the collecting guide plate 7 from being damaged or deformed.

[0037] The regulating cylinder 9 drives the regulating plate 8 to move, which in turn drives the flow guide plate 7 to rotate, adjusting the angle of the flow guide plate 7 to adapt to the different airflow directions brought by the forward or reverse moving conveyor belt 1.

Claims

1. A self-adjusting skirted negative pressure dust extraction system based on a belt conveyor, characterized in that, It includes a dust suppression hood (2), side skirts (4), hinges (5), and flow guide plates (7); the dust suppression hood (2) is set above the conveyor belt (1) of the conveyor belt; one end of the dust suppression hood (2) is closed and the other end is open; both ends of the dust suppression hood (2) are fixedly installed with side skirts (4), and hinges (5) are installed on the side skirts (4). One side blade of the hinge (5) is fixedly installed on the side skirts (4), and several flow guide plates (7) are rotatably installed on the other side blade; the two sides of the hinge (5) are elastically connected; the flow guide plates (7) are driven to rotate by an adjustment device.

2. The self-adjusting apron negative pressure dust collection system based on the belt conveyor according to claim 1, characterized in that, The adjusting device includes an adjusting plate (8) and an adjusting cylinder (9); the adjusting plate (8) is slidably installed on the hinge (5) blade where the flow guide plate (7) is located; the adjusting plate (8) is provided with a limiting groove (801) corresponding to each flow guide plate (7), and a slide rod (701) is fixedly installed on the flow guide plate (7) and slidably installed in the limiting groove (801); the adjusting plate (8) is driven to slide by the adjusting cylinder (9).

3. The self-adjusting apron negative pressure dust collection system based on the belt conveyor according to claim 2, characterized in that, The cylinder body of the regulating cylinder (9) is fixedly installed on the blade of the regulating plate (8), and the telescopic end is fixedly connected to the regulating plate (8).

4. The self-adjusting apron negative pressure dust collection system based on the belt conveyor according to claim 1, characterized in that, There is a gap between the dust suppression cover (2) and the transfer belt (1).

5. The self-adjusting apron negative pressure dust collection system based on the belt conveyor according to claim 1, characterized in that, The dust suppression cover (2) has a soft curtain (3) installed at one closed end.

6. The self-adjusting apron negative pressure dust collection system based on the belt conveyor according to claim 1, characterized in that, The dust suppression hood (2) has a feed inlet (201) and a recycling channel (202) at its top, and the recycling channel (202) has an inclined surface.

7. The self-adjusting apron negative pressure dust collection system based on the belt conveyor according to claim 1, characterized in that, The two sides of the hinge (5) are elastically connected together by an elastic connecting rod (6), and the two ends of the elastic connecting rod (6) are rotatably connected to the two sides of the hinge (5).

8. The self-adjusting skirt negative pressure dust collection system based on a belt conveyor according to claim 1, characterized in that, The flow guide plates (7) are evenly arranged and set on the bottom surface of the corresponding blade of the hinge (5), and the flow guide plates (7) and the corresponding blade of the hinge (5) are perpendicular to each other.

9. A self-adjusting apron negative pressure dust extraction system based on a belt conveyor according to claim 8, characterized in that, A rotating shaft is fixedly installed on the inner end of the flow guide plate (7), and is rotated on the corresponding blade of the hinge (5) through the rotating shaft.

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