Dust falling equipment for mineral aggregate conveying

Abstract

The utility model relates to a dust falling device for mineral aggregate conveying, which relates to the technical field of mineral aggregate conveying and dust falling and comprises a conveying groove, a material cavity is arranged in the conveying groove, a feeding hopper is arranged at the top of one end of the conveying groove, a discharging hopper is arranged at the bottom of the other end of the conveying groove, a rotating roller is rotatably arranged in the material cavity, and spiral blades are mounted on the outer wall of the rotating roller. A plurality of ventilation openings are formed in the top of the conveying groove, a frame is installed on the periphery of each ventilation opening, fan blades are rotationally installed on the tops of the frames, a plurality of dust outlet holes are formed in the bottom of the conveying groove, an isolation hood is arranged on the peripheries of the dust outlet holes, and a box body is connected to the bottom of the isolation hood in a fastened mode. According to the mineral aggregate dust recovery device, dust adsorbed on the surface of mineral aggregate can be prevented from diffusing to the external environment, the body health of operators is protected, meanwhile, conveying equipment can be protected, it is ensured that the production efficiency is within a set range, the recovery rate of the mineral aggregate dust is increased, and the operation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of dust suppression technology for mineral conveying, and specifically discloses a dust suppression device for mineral conveying. Background Technology

[0002] During mechanical operations such as loading, unloading, or transfer, the ore is subjected to physical actions such as collision, compression, and friction. Its brittle surface particles are easily broken and fall off to form dust, which easily adheres to the surface of the ore. Because dry, low-viscosity ores (such as coal and iron ore) lack moisture to bind them, their surface fine particles are more easily blown by the wind. The dust contains inhalable particles such as PM10 and PM2.5, as well as heavy metal components.

[0003] Most mineral materials need to be transported between processing equipment via conveyor belts or similar conveyor systems. During this transportation process, dust adhering to the surface of the mineral materials is easily dispersed into the air, which can damage the health of on-site workers. In severe cases, it can induce asthma, pneumoconiosis, and chronic obstructive pulmonary disease. Furthermore, the dust can accelerate mechanical wear, causing the core components of the conveying equipment to age faster, thereby shortening the service life of the conveying equipment. This not only slows down the production pace and reduces production efficiency, but also increases equipment maintenance costs and raises operating costs. Utility Model Content

[0004] In view of the current problems of excessive dust in the process of transporting mineral materials, which causes damage to the health of on-site workers and increases operating costs, this utility model provides a dust suppression device for transporting mineral materials.

[0005] To solve the above problems, this utility model provides the following technical solution:

[0006] A dust suppression device for conveying mineral materials includes a conveying trough with a material cavity inside. A feed hopper connected to the material cavity is located at the top of one end of the conveying trough, and a discharge hopper connected to the material cavity is located at the bottom of the other end of the conveying trough. A rotating roller is rotatably mounted in the material cavity, and spiral blades are fixedly installed on the outer wall of the rotating roller. Multiple ventilation openings are provided at the top of the conveying trough, and a frame is fixedly installed around each ventilation opening. A fan blade for air supply is rotatably mounted on the top of the frame. Multiple dust outlets are provided at the bottom of the conveying trough, and an isolation cover is fixedly connected to the outer wall of the conveying trough around each dust outlet. A housing is fixedly connected to the bottom of the isolation cover, and the inner cavity of the housing is connected to the inner cavity of the isolation cover.

[0007] Preferably, both ends of the rotating roller are rotatably engaged with the side wall of the conveying trough, a first motor bracket is fixedly installed on the side of the conveying trough, a first drive motor is fixedly installed on the first motor bracket, and the output shaft of the first drive motor is connected to the rotating roller through a coupling.

[0008] Preferably, the top of the conveying trough is provided with a flat section, the vent is arranged in the flat section, the bottom of the conveying trough is fixedly installed with a support leg, the support leg is arranged on the outside of the box, the bottom of the conveying trough is an arc section, and the dust outlet is arranged in the arc section.

[0009] Preferably, the top of the frame has an air inlet, a second motor bracket is fixedly installed on the top of the frame, a second drive motor is fixedly installed on the second motor bracket, and the fan blades are arranged inside the air inlet and are tightly connected to the output shaft of the second drive motor.

[0010] Preferably, a dustproof net is provided on the outside of the air inlet and is fastened to the frame, and a plurality of air supply plates are fixedly installed at the bottom of the frame and arranged in the ventilation opening, the air supply plates being arranged obliquely.

[0011] Preferably, a mesh plate is provided between the isolation cover and the box body, and the projected area of ​​the mesh holes in the mesh plate is smaller than the projected area of ​​the dust outlet.

[0012] Preferably, the outer wall of the enclosure is equipped with multiple doors.

[0013] Preferably, a baffle is fixedly installed on one side of the bottom of the discharge hopper, and the baffle is arranged at an angle with its bottom end facing the feed hopper.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention utilizes a combination of rotating rollers and spiral blades to spirally convey ore within a material chamber. This process gradually removes dust adsorbed on the ore surface and disperses it into the chamber. Fan blades allow external air to be introduced into the chamber as an airflow, blowing dust from the chamber through dust outlets into the housing, where it accumulates. This effectively reduces and recovers dust adsorbed on the ore surface. This invention prevents dust adsorbed on the ore surface from dispersing into the external environment during ore conveying, protecting the health of on-site personnel and preventing dust from contacting core components of the conveying equipment. This ensures production efficiency remains within a predetermined range and improves the recovery rate of ore dust. By reducing equipment maintenance costs and operating expenses, this invention has a very broad application prospect. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the conveying trough structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the rotating roller and spiral blade structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the dustproof net installation structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the fan blade mounting structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the air supply plate installation structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the mesh panel installation structure of this utility model;

[0024] In the diagram: 1. Conveying trough, 2. Material chamber, 3. Feed hopper, 4. Discharge hopper, 5. Rotary roller, 6. Spiral blade, 7. Ventilation port, 8. Frame, 9. Fan blade, 10. Dust outlet, 11. Isolation cover, 12. Box body, 13. First motor bracket, 14. First drive motor, 15. Straight section, 16. Support leg, 17. Arc section, 18. Air inlet, 19. Second motor bracket, 20. Second drive motor, 21. Dustproof net, 22. Air supply plate, 23. Mesh plate, 24. Box door, 25. Baffle. Detailed Implementation

[0025] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] This specific embodiment provides a dust suppression device for conveying mineral materials, such as... Figures 1-7As shown, the system includes a conveying trough 1, with a material chamber 2 inside for storing and conveying ore. The top of the conveying trough 1 has a straight section 15, and a feed hopper 3 is fixedly installed at one end of the straight section 15. The feed inlet of the feed hopper 3 faces upwards and is connected to the material chamber 2, facilitating the entry of ore from the feed hopper 3 into the material chamber 2. The bottom of the conveying trough 1 is an arc-shaped section 17, with a discharge hopper 4 fixedly installed at the bottom of the arc-shaped section 17, away from the feed hopper 3. The discharge outlet of the discharge hopper 4 faces downwards. A baffle 25 is fixedly installed on one side of the bottom of the discharge hopper 4, with the baffle 25 inclined and its bottom end facing the feed hopper 3. A conveyor belt can be installed at the bottom of the discharge hopper 4 to facilitate the flow of ore from the discharge hopper 4 out of the material chamber 2, while also allowing it to flow out obliquely, thus facilitating the transport of the ore to other processing equipment.

[0027] A rotating roller 5 is rotatably mounted in the material chamber 2. Both ends of the rotating roller 5 are rotatably engaged with the side wall of the conveying trough 1 via sealed bearings. A first motor bracket 13 is fixedly mounted on the side of the conveying trough 1 near the discharge hopper 4. A first drive motor 14 is fixedly mounted on the first motor bracket 13. The output shaft of the first drive motor 14 is coaxially arranged with the rotating roller 5. The output shaft of the first drive motor 14 is connected to the rotating roller 5 via a coupling, thereby driving the rotating roller 5 to rotate at a constant speed in the material chamber 2. A spiral blade 6 is fixedly mounted on the outer wall of the rotating roller 5. When the rotating roller 5 rotates, it drives the spiral blade 6 to rotate as well, thereby conveying the ore from one end of the feed hopper 3 to one end of the discharge hopper 4.

[0028] Multiple ventilation openings 7 are provided on the flat section 15 at the top of the conveying trough 1. These ventilation openings 7 are all square in structure and evenly arranged. A frame 8 is fixedly installed around each ventilation opening 7, and the frame 8 is tightly connected to the flat section 15. The frame 8 is square in structure, with a circular air inlet 18 at its top and an open bottom, thus connecting the inner cavity of the frame 8 to the material cavity 2. A second motor bracket 19 is fixedly installed on the top of the frame 8, and a second drive motor 20 is fixedly installed on the second motor bracket 19. The output shaft of the second drive motor 20 is arranged vertically downwards, and a fan blade 9 is fixedly installed at the end of the output shaft. The fan blade 9 can rotate vertically with the output shaft of the second drive motor 20. The fan blade 9 is arranged inside the air inlet 18, thereby introducing airflow from the external environment into the frame 8.

[0029] The air inlet 18 is provided with a dustproof net 21 that is fastened to the frame 8 on the outside, so as to block large dust particles in the external environment to the greatest extent. The bottom of the frame 8 is fixedly installed with a plurality of air supply plates 22 arranged in the ventilation opening 7. The air supply plates 22 are arranged obliquely to facilitate the airflow into the material chamber 2, and at the same time, they can concentrate the airflow and avoid diffuse blowing.

[0030] Multiple dust outlet holes 10 are provided on the arc-shaped portion 17 at the bottom of the conveying trough 1. All dust outlet holes 10 are circular. An isolation cover 11, which is tightly connected to the outer wall of the conveying trough 1, is provided around each dust outlet hole 10. A box body 12 is tightly connected to the bottom of the isolation cover 11, and the inner cavity of the box body 12 communicates with the inner cavity of the isolation cover 11. By providing the isolation cover 11, dust in the material chamber 2 is prevented from dispersing to the outside and is instead directed into the inner cavity of the box body 12. A mesh plate 23 is provided between the isolation cover 11 and the box body 12. The mesh plate 23 has multiple evenly arranged mesh holes, the projected area of ​​which is smaller than the projected area of ​​the dust outlet holes 10. This ensures dust passage while isolating small particles of mineral material, thus preventing some small particles from flowing into the inner cavity of the box body 12.

[0031] The working principle of this utility model is as follows:

[0032] The ore can be fed into the material chamber 2 of the conveying trough 1 through the feed hopper 3. By starting the first drive motor 14, the rotating roller 5 rotates, thereby driving the spiral blades 6 to rotate as well. During the rotation of the spiral blades 6, the ore can be conveyed by a spiral, thereby transporting the ore to the top of the discharge hopper 4 and allowing the ore to flow out of the conveying trough 1 from the discharge hopper 4. During this period, the dust on the surface of the ore can be dispersed into the material chamber 2. By starting the second drive motor 20, the fan blades 9 rotate continuously, thereby continuously conveying the outside air into the material chamber 2 in the form of airflow. The dust can gradually fall into the isolation cover 11 through the airflow, and after passing through the dust filter 21, it falls into the inner cavity of the box 12. Operators can periodically open the box door 24 to clean and recover the ore dust.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dust reduction device for mineral material conveying, comprising a conveying trough (1), characterized in that, The inside of the conveying groove (1) is provided with a material cavity (2), the top of one end of the conveying groove (1) is provided with a feeding hopper (3) communicated with the material cavity (2), the bottom of the other end of the conveying groove (1) is provided with a discharging hopper (4) communicated with the material cavity (2), a rotating roller (5) is rotatably arranged in the material cavity (2), a spiral blade (6) is fixedly installed on the outer wall of the rotating roller (5), a plurality of ventilation openings (7) are formed in the top of the conveying groove (1), a frame (8) is fixedly installed around each ventilation opening (7), a fan blade (9) for air supply is rotatably installed on the top of the frame (8), a plurality of dust outlet holes (10) are formed in the bottom of the conveying groove (1), the periphery of the dust outlet hole (10) is provided with an isolation cover (11) fastened to the outer wall of the conveying groove (1), the bottom of the isolation cover (11) is fastened to a box body (12), and the inner cavity of the box body (12) is communicated with the inner cavity of the isolation cover (11).

2. A dust suppression apparatus for use in the transport of mineral aggregate according to claim 1, wherein, Both ends of the rotating roller (5) are rotatably matched with the side wall of the conveying groove (1), the first motor bracket (13) is fixedly installed on the side of the conveying groove (1), the first driving motor (14) is fixedly installed on the first motor bracket (13), and the output shaft of the first driving motor (14) is drivingly connected with the rotating roller (5) through a shaft coupling.

3. The dust suppression apparatus for conveying of mineral material according to claim 1, characterized in that, The top of the conveying groove (1) is provided with a flat portion (15), the ventilation opening (7) is arranged in the flat portion (15), the bottom of the conveying groove (1) is fixedly installed with a supporting leg (16), the supporting leg (16) is arranged outside the box body (12), the bottom of the conveying groove (1) is a circular arc portion (17), and the dust outlet hole (10) is arranged in the circular arc portion (17).

4. The dust suppression apparatus for conveying of mineral material according to claim 1, characterized in that, The top of the frame (8) is provided with an air inlet (18), the second motor bracket (19) is fixedly installed on the top of the frame (8), the second driving motor (20) is fixedly installed on the second motor bracket (19), and the fan blade (9) is arranged in the air inlet (18) and is fastened to the output shaft of the second driving motor (20).

5. A dust suppression apparatus for use in the transport of mineral aggregate according to claim 4, wherein, The outer side of the air inlet (18) is provided with a dust isolation net (21) fastened to the frame (8), a plurality of air supply plates (22) arranged in the ventilation opening (7) are fixedly installed on the bottom of the frame (8), and the air supply plates (22) are arranged obliquely.

6. The dust suppression apparatus for conveying of mineral material according to claim 1, characterized in that, A mesh plate (23) is arranged between the isolation cover (11) and the box body (12), and the projection area size of the mesh hole in the mesh plate (23) is smaller than the projection area size of the dust outlet hole (10).

7. The dust suppression apparatus for conveying of mineral material according to claim 1, characterized in that, A plurality of box doors (24) are installed on the outer wall of the box body (12).

8. The dust suppression apparatus for conveying of mineral material according to claim 1, characterized in that, The bottom side of the discharging hopper (4) is fixedly installed with a baffle (25), the baffle (25) is arranged obliquely and the bottom end faces the feeding hopper (3).

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