Material falling dust restraining and collecting device for conveying belt
By setting up a guide groove, purge branch pipe and air collecting cover on the conveying belt, the dust is kept suspended and extracted by blown compressed air, which solves the problem of dust overflowing from the gap between the guide groove and the belt, and effectively suppresses and collects dust.
Patent Information
- Application Number
- CN202422128902.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-31
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-31
AI Technical Summary
In the prior art, when the material is blanked, dust overflows from the gap between the material guide trough and the belt, causing pollution.
A dust-suppression and collection device for blanking of conveyor belt materials is designed, using a material guide groove, main dust removal pipeline, dust removal branch pipeline and purge branch pipe. The compressed air is sprayed with the purge branch pipe to maintain the dust suspension state, and it is pumped away through the air collection cover and dust removal branch pipe.
It effectively reduces dust spillage, improves the effect of dust pollution control, and ensures clean environment.
Smart Images
Figure CN223175335U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a dust suppression and collection device for the material falling of a conveyor belt, belonging to the technical field of dust collection of a belt conveyor. Background Art
[0002] Refer to the attached Figure 1 , the upper part of the material guiding chute is a cone with a large upper part and a small lower part, the middle part of the material guiding chute is cylindrical, the lower part of the material guiding chute is a cone with a small upper part and a large lower part, the material guiding chute is arranged above the conveying belt, there is a gap between the bottom of the material guiding chute and the conveying belt, the material falls on the conveying belt through the material guiding chute, most of the dust is sucked away by the dust removal pipeline arranged on the material guiding chute, and a small part of the dust overflows from the gap between the material guiding chute and the conveyor belt, causing pollution. Content of the Utility Model
[0003] The purpose of the utility model is to provide a dust suppression and collection device for the material falling of a conveyor belt, which can suppress and collect the dust overflowing from the gap between the material guiding chute and the conveyor belt, reduce the dust spillage, and solve the problems existing in the background art.
[0004] The technical solution of the utility model is as follows:
[0005] A dust suppression and collection device for the material falling of a conveyor belt includes a conveying belt, a material guiding chute, a main dust removal pipeline and a dust removal branch pipeline A. The material guiding chute is arranged above the conveying belt. The upper part of the material guiding chute is a cone with a large upper part and a small lower part, the middle part of the material guiding chute is cylindrical, the lower part of the material guiding chute is a cone with a small upper part and a large lower part, there is a gap between the bottom of the material guiding chute and the conveying belt, the main dust removal pipeline is connected to the material guiding chute, one end of the dust removal branch pipeline A is connected to the lower part of the material guiding chute, and the other end is connected to the main dust removal pipeline. A gas collecting hood with an outer dimension larger than that of the lower part of the material guiding chute is arranged at the lower part of the material guiding chute. A plurality of uniformly arranged purging branch pipes are arranged at the gap between the bottom of the material guiding chute and the conveying belt, and each purging branch pipe is connected to a purging pipeline.
[0006] The purging branch pipes are arranged in two rows, and the two rows of purging branch pipes are respectively arranged at the front and rear gaps between the bottom of the material guiding chute and the conveying belt according to the conveying direction of the belt.
[0007] The two rows of purging branch pipes are both provided with spray heads facing the gap between the bottom of the material guiding chute and the conveying belt.
[0008] A dust removal branch pipeline B is arranged between the gas collecting hood and the main dust removal pipeline.
[0009] The volume of the gas collecting hood is six times that of the lower part of the material guiding chute.
[0010] The beneficial effects of the present utility model are as follows: During the feeding process of the material, compressed air is blown through the purging pipeline into the gap between the guiding trough and the conveying belt. The dust is disturbed by the purging air and remains in a suspended state, and then is sucked away by the dust collector of the air collecting hood, thereby reducing the occurrence of dust spillage. Brief Description of the Drawings
[0011] Figure 1 It is a schematic diagram of the background technology;
[0012] Figure 2 It is a schematic diagram of the present utility model;
[0013] In the figure: gap 1, material 2, material falling direction 3, guiding trough 4, main dust removal pipeline 5, belt running direction 6, purging pipeline 7, purging branch pipe 8, air collecting hood 9, dust removal branch pipe A 10, dust removal branch pipe B 11. Detailed Embodiment
[0014] The following further illustrates the present utility model through examples in conjunction with the accompanying drawings.
[0015] Referring to the attached Figure 1-2 , a conveying belt material falling dust suppression and collection device includes a conveying belt 2, a guiding trough 4, a main dust removal pipeline 5 and a dust removal branch pipe A 10. The guiding trough 4 is arranged above the conveying belt 2. The upper part of the guiding trough 4 is a conical shape with a larger upper part and a smaller lower part, the middle part of the guiding trough 4 is a cylindrical shape, the lower part of the guiding trough 4 is a conical shape with a smaller upper part and a larger lower part. There is a gap 1 between the bottom of the guiding trough 4 and the conveying belt 2. The main dust removal pipeline 5 is connected to the guiding trough 4. One end of the dust removal branch pipe A 10 is connected to the lower part of the guiding trough 4, and the other end is connected to the main dust removal pipeline 5. An air collecting hood 9 with an outer dimension larger than the lower part of the guiding trough 4 is arranged at the lower part of the guiding trough 4. A plurality of evenly arranged purging branch pipes 8 are arranged at the gap 1 between the bottom of the guiding trough 4 and the conveying belt 2, and each purging branch pipe 8 is connected to the purging pipeline 7.
[0016] In this embodiment, referring to the attached Figure 1-2 , the conveying belt 2 is a coal conveying belt in a coking plant, with a belt width of 1200 mm, a belt speed of 2.0 m / s, a conveying capacity of blended coal of 660 T / h, and a height difference of the material falling point of 2.6 m.
[0017] A covering type dust collecting hood 9 is installed at the lower part of the guiding trough 4. The dust collecting hood 9 is made of steel or plastic, and its volume is about six times that of the lower part of the guiding trough 4. The larger internal space can effectively stabilize the flow of waste gas, make the waste gas collection effect of the air collecting hood 9 more uniform, and make the flow of dust-containing waste gas more stable.
[0018] A row of purging branch pipes 8 are respectively arranged at the front and rear gaps 1 between the bottom of the material guiding trough 4 and the feeding belt 2 along the conveying direction of the feeding belt 2. Each row of purging branch pipes 8 is provided with a blow head facing the gap 1 between the bottom of the material guiding trough 4 and the feeding belt 2. The air volume of each blow head is 100 - 150 L / min, and the purging air pressure is 0.6 - 1.0 Mpa. The air source can be compressed air or purified waste gas after pressurization.
[0019] A dust removal branch pipe B11 is arranged between the gas collecting hood 9 and the main dust removal pipeline 5.
[0020] During use, first, the conveying belt runs idly, and the dust removal pipeline and the purging pipeline are started synchronously. Then, the feeding is carried out. The material falls on the conveying belt. Most of the dust is sucked away by the dust removal pipeline arranged on the material guiding trough, and a small part overflows from the gap between the material guiding trough and the belt. It is kept suspended by the disturbance of the purging air, and then is sucked away by the dust removal of the gas collecting hood. While the purging air makes the overflowing dust surge and suspend, it will also increase the air flow velocity at the gap between the material guiding trough and the conveying belt, further reducing the occurrence of dust overflow.
[0021] When the conveying belt stops operating, first stop the feeding, while the belt, dust removal and purging keep running to thoroughly suck the remaining dust-containing waste gas in the material guiding trough and the dust collecting hood. At this time, the purging air can blow clean the dust accumulated at the gap between the material guiding trough and the conveying belt, including the dust on the surface of the belt, thereby improving the treatment effect of dust pollution.
Claims
1. A dust suppression and collection device for the material falling of a conveyor belt, comprising a conveyor belt (2), a guiding chute (4), a main dust removal pipeline (5) and a dust removal branch pipeline A (10). The guiding chute (4) is arranged above the conveyor belt (2). The upper part of the guiding chute (4) is a cone with a large top and a small bottom, the middle part of the guiding chute (4) is cylindrical, the lower part of the guiding chute (4) is a cone with a small top and a large bottom, and there is a gap (1) between the bottom of the guiding chute (4) and the conveyor belt (2). The main dust removal pipeline (5) is connected to the guiding chute (4), one end of the dust removal branch pipeline A (10) is connected to the lower part of the guiding chute (4), and the other end is connected to the main dust removal pipeline (5). It is characterized in that: A gas collecting hood (9) with an outer dimension larger than that of the lower part of the material guiding chute (4) is provided at the lower part of the material guiding chute (4). A plurality of evenly arranged purging branch pipes (8) are provided at the gap (1) between the bottom of the material guiding chute (4) and the conveying belt (2). Each purging branch pipe (8) is connected to a purging pipeline (7).
2. The dust suppression and collection device for the material falling of the conveyor belt according to claim 1, wherein: The purging branch pipes (8) are arranged in two rows, and the two rows of purging branch pipes (8) are respectively arranged at the front and rear gaps (1) between the bottom of the material guiding chute (4) and the conveying belt (2) along the conveying direction of the belt.
3. The material falling dust suppression and collection device for a conveyor belt according to claim 2, characterized in that: The two rows of purging branch pipes (8) are both provided with spray heads facing the gap (1) between the bottom of the material guiding chute (4) and the conveying belt (2).
4. The dust suppression and collection device for the material falling of the conveyor belt according to claim 1, wherein: A dust removal branch pipe B (11) is provided between the gas collecting hood (9) and the main dust removal pipeline (5).
5. The material dropping dust suppression and collection device for a conveyor belt according to claim 1 or 4, characterized in that: The volume of the gas collecting hood (9) is six times that of the lower part of the material guiding chute (4).