Belt totally-closed dust falling device

Abstract

The utility model discloses a belt totally-closed dust falling device which comprises a conveying belt supported by a supporting frame, a closed hood is arranged on the lower portion of a feeding opening of the conveying belt, and side supports for supporting the side edges of the conveying belt are arranged on the two sides of the lower portion of the closed hood. An inner apron board and an outer apron board which are connected with the inner end and the outer end of the side portion of the sealing cover are arranged on the upper portions of the edges of the two sides of the conveying belt, a blocking cavity is formed, an air sealing assembly is arranged in the blocking cavity, and a plurality of blocking assemblies are arranged on the upper portion of the sealing cover. Dust can be prevented from diffusing outwards, the surrounding environment is protected, meanwhile, the multiple blocking assemblies are arranged on the sealing cover, the dust walking path is prolonged, the kinetic energy of flying dust is gradually reduced, finally, the flying dust sinks under the action of gravity, and the dust suppression and sealing purposes are achieved.

Description

Technical Field

[0001] The utility model relates to the field of conveyor belt dust reduction, in particular to a fully enclosed belt dust reduction device. Background Art

[0002] The occurrence of dust pollution during the operation of the belt conveyor is mainly caused by the impact airflow generated when the head material falls downward, which carries the dust out and disperses it into the surrounding air. Under the action of the impact airflow, some fine dust entrained in the material gains the power to escape and diffuses into the surrounding air, thus causing air dust pollution within a certain distance and range of the working environment. The greater the height difference of the material falling, the heavier the pollution caused. The equipment of this project mainly solves the above pollution problems.

[0003] The original guide trough set at the conveyor belt feeding port is a DT II type standard rectangular opening. The side edge of the guide trough contacts the conveyor belt for sealing. However, due to the friction between the side of the guide trough and the conveyor belt, the seal is not tight and the dust cannot be effectively blocked, polluting the surrounding environment. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides a fully enclosed belt dust reduction device.

[0005] The utility model is realized through the following technical solutions:

[0006] A fully enclosed belt dust reduction device comprises a conveyor belt supported by a support frame, a closed cover is arranged at the lower part of the feeding port of the conveyor belt, side supports for supporting the sides of the conveyor belt are arranged on both sides of the lower part of the closed cover, inner skirt plates and outer skirt plates connected to the inner and outer ends of the side parts of the closed cover are arranged on the upper parts of the edges of both sides of the conveyor belt to form a blocking cavity, an air sealing component is arranged in the blocking cavity, and multiple blocking components are arranged on the upper part of the closed cover.

[0007] Further optionally, the air sealing assembly includes an air pipe arranged along the direction of the blocking cavity, a plurality of air blowing nozzles are arranged at the lower part of the air pipe, and the air pipe is connected to the air supply main pipe through an air supply branch pipe.

[0008] Further optionally, a sealing groove matching the bottom of the outer skirt plate is formed on the side support, and the outer skirt plate is located outside the side edge of the conveyor belt.

[0009] Further optionally, the bottom of the inner skirt plate is arranged on the inner side of the edge of the side portion of the conveyor belt, and an air blowing gap is arranged between the bottom of the inner skirt plate and the upper portion of the conveyor belt.

[0010] Further optionally, both sides of the support frame are connected and fixed to the closed cover via a plurality of connecting frames, and closed curtains are provided at the front and rear ends of the closed cover.

[0011] Further optionally, the barrier assembly includes a mounting opening arranged at the upper portion of the closed cover, the mounting opening is connected to a cover plate, and the lower portion of the cover plate is connected to a barrier curtain arranged in an S shape.

[0012] Further optionally, the barrier curtain is formed by a plurality of rubber strips arranged closely.

[0013] Compared with the existing technology, the beneficial effects of the utility model are as follows: the utility model can prevent dust from spreading outward and protect the surrounding environment by arranging a closed cover at the existing conveyor belt feeding port, arranging a barrier cavity and an air sealing component on the side of the closed cover, and at the same time arranging multiple barrier components in the closed cover to extend the dust travel path, gradually reduce the kinetic energy of the dust, and finally sink the dust under the action of gravity, thereby achieving the purpose of dust suppression and sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the front view of the structure of the utility model;

[0015] Figure 2 yes Figure 1 A schematic enlarged view of the local structure in FIG.

[0016] Figure 3 It is a three-dimensional schematic diagram of the practical closure cover;

[0017] In the figure: support frame 1, conveyor belt 2, side support 3, closing cover 4, connecting frame 5, outer skirt plate 6, inner skirt plate 7, sealing groove 8, barrier cavity 9, air pipe 10, blowing nozzle 11, air supply pipe 12, air supply main pipe 13, installation port 14, cover plate 15, barrier curtain 16, blanking port 17, closing curtain 18. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0019] like Figure 1 , 2 As shown, a fully enclosed belt dust reduction device includes a conveyor belt 2 supported by a support frame 1, a closed cover 4 is arranged at the lower part of the feeding port of the conveyor belt 2, side supports 3 for supporting the side edges of the conveyor belt 2 are arranged on both sides of the lower part of the closed cover 4, inner skirt plates 7 and outer skirt plates 6 connected to the inner and outer ends of the side of the closed cover 4 are arranged on the upper parts of the edges of both sides of the conveyor belt 2 to form a blocking cavity 9, an air sealing component is arranged in the blocking cavity 9, and a plurality of blocking components are arranged on the upper part of the closed cover 4.

[0020] like Figure 1 , 2As shown, the air sealing assembly includes an air pipe 10 arranged along the direction of the blocking cavity 9, and a plurality of air blowing nozzles 11 are arranged at the lower part of the air pipe 10. The air pipe 10 is connected to the air supply main pipe 13 through an air supply branch pipe 12. The air supply enables the blocking cavity 9 to achieve positive pressure air sealing to prevent dust in the closed cover 4 from diffusing outward.

[0021] like Figure 2 As shown, a sealing groove 8 matching the bottom of the outer skirt plate 6 is formed on the side support 3 , and the outer skirt plate 6 is located outside the side edge of the conveyor belt 2 .

[0022] like Figure 2 As shown, the bottom of the inner skirt plate 7 is arranged on the inner side of the side edge of the conveyor belt 2, and a blowing gap is arranged between the bottom of the inner skirt plate 7 and the upper part of the conveyor belt 2. The blowing gap can not only avoid direct contact and wear between the inner skirt plate 7 and the conveyor belt 2, but also the positive pressure air can diffuse from the blowing gap to the inner side of the closed cover 4 to avoid dust diffusion.

[0023] like Figure 1 , 3 As shown, both sides of the support frame 1 are connected and fixed to the closed cover 4 through multiple connecting frames 5. The front and rear ends of the closed cover 4 are provided with closed curtains 18, which can prevent dust from spreading and leaking to the front and rear ends of the closed cover 4.

[0024] like Figure 3 As shown, the barrier assembly includes a mounting opening 14 disposed on the upper portion of the closing cover 4, a cover plate 15 is connected to the mounting opening 14, and a barrier curtain 16 arranged in an S shape is connected to the lower portion of the cover plate 15.

[0025] like Figure 3 As shown, the barrier curtain 16 is formed by a plurality of rubber strips arranged closely.

[0026] The implementation principle of a belt fully enclosed dust suppression device in the embodiment of the present application is:

[0027] The material in the silo falls along the drop opening 17 of the closed cover 4 and enters the conveyor belt 2 for transportation. The generated material dust touches and hits the S-shaped barrier curtain 16 of the barrier component during the movement. The S-shaped barrier curtain 16 guides the dust wind flow to move along the S-shaped path, extending the walking path, gradually reducing the kinetic energy of the dust, and finally the dust sinks under the action of gravity, thereby achieving the purpose of dust suppression and sealing;

[0028] At the same time, when unloading, air with a certain pressure is supplied to the air pipe 10 in the blocking cavity 9 through the air supply main pipe 13 and the air supply pipe 12, and the air is evenly distributed in the blocking cavity 9 through multiple blowing nozzles 11 on the air pipe 10. Since the outer skirt plate 6 is sealed and fitted with the sealing groove 8 of the side support 3, the gas will not diffuse outward. Since the inner skirt plate 7 and the upper edge of the conveyor belt 2 form a blowing gap, the air evenly distributed in the blocking cavity 9 will diffuse into the upper closing cover 4 of the conveyor belt 2, thereby realizing air-sealed isolation for the dust diffused outward from the lower part of the inner skirt plate 7, avoiding the dust from diffusing outward to pollute the environment, and the inner skirt plate 7 does not contact or rub with the conveyor belt 2 throughout the whole process, which greatly extends the service life of the inner skirt plate 7 blockage.

[0029] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fully enclosed belt dust suppression device, comprising a conveyor belt (2) supported by a support frame (1), a closed cover (4) being arranged at the lower part of a feeding port of the conveyor belt (2), and side supports (3) for supporting the side edges of the conveyor belt (2) being arranged at both sides of the lower part of the closed cover (4), characterized in that: The upper parts of the edges of both sides of the conveyor belt (2) are provided with inner skirt plates (7) and outer skirt plates (6) connected to the inner and outer ends of the side of the closing cover (4) to form a blocking cavity (9), an air sealing component is arranged in the blocking cavity (9), and a plurality of blocking components are arranged on the upper part of the closing cover (4).

2. A fully enclosed belt dust suppression device according to claim 1, characterized in that: The air sealing assembly comprises an air pipe (10) arranged along the direction of the blocking cavity (9), a plurality of air blowing nozzles (11) are arranged at the lower part of the air pipe (10), and the air pipe (10) is connected to the air supply main pipe (13) through an air supply branch pipe (12).

3. The fully enclosed belt dust suppression device according to claim 1, characterized in that: The side support (3) is provided with a sealing groove (8) matching the bottom of the outer skirt plate (6), and the outer skirt plate (6) is located outside the side edge of the conveyor belt (2).

4. The fully enclosed belt dust suppression device according to claim 1, characterized in that: The bottom of the inner skirt plate (7) is arranged on the inner side of the edge of the side of the conveyor belt (2), and an air blowing gap is arranged between the bottom of the inner skirt plate (7) and the upper part of the conveyor belt (2).

5. The fully enclosed belt dust suppression device according to claim 1, characterized in that: Both sides of the support frame (1) are connected and fixed to the closed cover (4) via a plurality of connecting frames (5), and the front and rear ends of the closed cover (4) are provided with closed curtains (18).

6. The fully enclosed belt dust suppression device according to claim 1, characterized in that: The barrier assembly comprises a mounting opening (14) arranged on the upper part of the closed cover (4), a cover plate (15) being connected to the mounting opening (14), and a barrier curtain (16) arranged in an S shape being connected to the lower part of the cover plate (15).

7. A fully enclosed belt dust suppression device according to claim 6, characterized in that: The barrier curtain (16) is formed by a plurality of rubber strips arranged closely.

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