A dust removal device for processing barite powder

Abstract

The utility model discloses a dust collector for barite powder processing belongs to barite processing technical field, including conveying mechanism, dust collector, and conveying mechanism is including following structure, the conveyer belt that head and tail are connected, the conveyer belt inboard is equipped with at least two matched transmission wheel, and the conveyer belt outside surface is equipped with a plurality of dust removal hole that reaches the inboard, and the dust collector is including following structure, dust cover, and dust cover is located the conveyer belt inboard and is equipped with dust removal mouth in top portion, and the dust removal mouth with conveyer belt inboard surface between is equipped with the clearance that allows the conveyer belt motion, and the dust cover bottom is equipped with the dust removal pipe that extends downward, and the dust removal pipe is equipped with cyclone jar in the one end away from dust cover, and cyclone jar top portion is equipped with negative pressure fan, and the bottom of cyclone jar is equipped with dust collecting box, the utility model discloses in the barite conveying process realizes reducing dust pollution, improves the environmental protection of barite processing operation.

Description

Technical Field

[0001] This utility model relates to the field of barite processing technology, specifically to a dust removal device for barite powder processing. Background Technology

[0002] Barite is typically processed into powder through crushing and grinding. This processing generates a significant amount of dust, posing a potential environmental pollution risk. Most of this dust is generated during the grinding process, using equipment such as ball mills, Raymond mills, and ultrafine mills. These machines are usually installed in relatively sealed spaces and equipped with dust collectors to prevent dust pollution. The dust pollution generated during the crushing of large pieces of barite into smaller particles and during transport is often overlooked. Although the amount of dust generated in these steps is relatively small, the cumulative environmental pollution over time cannot be ignored. Therefore, it is necessary to strengthen dust removal efforts in these processes.

[0003] Chinese Patent No. CN221268491U discloses a barite processing system, including a barite raw material silo. The bottom of the barite raw material silo is provided with a first discharge port. Below the first discharge port is a conveyor belt. The end of the conveyor belt in the conveying direction is connected to the inlets of several storage silos through a raw material conveying pipeline. The discharge ports of the storage silos are connected to the inlets of a grinding equipment through a grinding pipeline. The discharge port of the grinding equipment is connected to the inlets of the storage tanks through a conveying pipeline. A fan is provided on the conveying pipeline. The discharge port of the storage tanks is connected to a barite powder collection silo through a powder conveying pipeline. The bottom of the barite powder collection silo is provided with several second discharge ports. The second discharge ports are connected to several dustproof bags through a barite powder conveying pipeline.

[0004] In the above-mentioned barite processing system, the processed barite powder is fed into the barite powder pipeline through the second discharge port. During this process, dust pollution is caused by several dustproof bags. However, when the crushed barite leaves the barite raw material silo and falls onto the surface of the conveyor belt, a large amount of dust is raised. This dust is not effectively treated and is prone to causing dust pollution to the environment. Therefore, there is still room for improvement in the treatment of dust generated after crushing barite. Utility Model Content

[0005] To address the technical deficiencies in the background technology, this utility model proposes a dust removal device for barite powder processing, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows: A dust removal device for barite powder processing includes a conveying mechanism and a dust removal mechanism. The conveying mechanism includes the following structure: a conveyor belt connected end to end, at least two matching conveyor wheels provided on the inner side of the conveyor belt, and a plurality of dust removal holes penetrating to the inner side provided on the outer surface of the conveyor belt. The dust removal mechanism includes the following structure: a dust removal hood, which is located inside the conveyor belt and has a dust removal port at the top; a gap is provided between the dust removal port and the inner surface of the conveyor belt to allow the conveyor belt to move; a dust removal pipe extending downwards is provided at the bottom of the dust removal hood; a cyclone is provided at the end of the dust removal pipe away from the dust removal hood; the end of the dust removal pipe is fixedly connected to the side of the cyclone; a negative pressure fan is provided at the top of the cyclone; and a dust collection box is provided at the bottom of the cyclone.

[0006] As a further technical solution of this utility model, the outer surface of the conveyor belt is provided with a plurality of outwardly protruding protrusions, and the positions of the protrusions and the dust removal holes are staggered.

[0007] As a further technical solution of this utility model, baffles are provided on both sides of the top of the conveying mechanism, and a gap is provided between the baffles and the conveyor belt to allow the conveyor belt to move. Each of the baffles is inclined to the side away from the other baffle.

[0008] As a further technical solution of this utility model, a first vibrator is provided on the inner side of the conveyor belt, and a plurality of vibrating rollers are movably connected to the top of the first vibrator. The top of the vibrating rollers abuts against the inner side of the conveyor belt, and the vibrating rollers rotate along the conveying direction of the conveyor belt.

[0009] As a further technical solution of this utility model, a second vibrator is provided on the inner side of the conveyor belt, and a plurality of vibrating rollers are movably connected to the bottom of the second vibrator. The bottom of the vibrating rollers abuts against the inner side of the conveyor belt, and the vibrating rollers rotate along the conveying direction of the conveyor belt. A material guide plate is provided below the bottom of the conveyor belt.

[0010] As a further technical solution of this utility model, a rolling roller is provided at the top edge of the dust removal hood, the upper surface of the rolling roller abuts against the top of the inner side of the conveyor belt, and the rolling roller moves in the same direction as the conveyor belt.

[0011] As a further technical solution of this utility model, a screening chamber is provided at the bottom of the dust collection box, and at least one screen and at least two discharge ports are provided inside the screening chamber. The two discharge ports are located above and below the screen, respectively, and a third vibrator is provided at the bottom of the screening chamber.

[0012] The beneficial effects of this utility model are as follows: This invention uses a negative pressure fan to create a negative pressure area inside the dust collection hood. This negative pressure area generates a negative pressure airflow through the dust collection holes and acts on the surface of the conveyor belt. When barite, processed into small particles through the crushing process, falls onto the conveyor belt surface for transport, the negative pressure airflow adsorbs the dust from the barite onto the conveyor belt surface. Smaller dust particles are then transported through the dust collection pipe and settled by the cyclone separator before falling into the dust collection box. This reduces dust pollution during the barite transport process and allows for the recycling of the collected dust, improving the environmental friendliness of barite processing operations. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a dust removal device used in the processing of barite powder.

[0014] Figure 2 This is a schematic diagram of the conveyor belt mechanism of a dust removal device used in barite powder processing.

[0015] Figure 3 This is a schematic diagram of the conveyor belt structure from another angle of a dust removal device used in barite powder processing.

[0016] Among them: 1-Conveying mechanism, 11-Conveyor belt, 12-Conveying wheel, 13-Dust removal hole, 14-Protrusion block, 15-Baffle plate, 2-Dust removal mechanism, 21-Dust removal hood, 22-Dust removal port, 23-Dust removal pipe, 24-Cyclone, 25-Negative pressure fan, 26-Rolling roller, 27-Cloth curtain, 3-Dust collection box, 31-Screening chamber, 32-Screen, 33-Discharge port, 34-Third vibrator, 4-First vibrator, 41-Vibrating roller, 5-Second vibrator, 6-Material guide plate. Detailed Implementation

[0017] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0018] like Figure 1-3As shown, a dust removal device for barite powder processing includes a conveying mechanism 1 and a dust removal mechanism 2. The conveying mechanism 1 includes a conveyor belt 11 connected end to end, at least two matching conveyor wheels 12 on the inner side of the conveyor belt 11, and a plurality of dust removal holes 13 penetrating to the inner side on the outer surface of the conveyor belt 11. The dust removal mechanism 2 includes a dust removal hood 21 located inside the conveyor belt 11 and having a dust removal port 22 at its top. A gap is provided between the dust removal port 22 and the inner surface of the conveyor belt 11 to allow the conveyor belt 11 to move. A dust removal pipe 23 extending downward is provided at the bottom of the dust removal hood 21. A cyclone 24 is provided at the end of the dust removal pipe 23 away from the dust removal hood 21. The end of the dust removal pipe 23 is fixedly connected to the side of the cyclone 24. A negative pressure fan 25 is provided at the top of the cyclone 24, and a dust collection box 3 is provided at the bottom of the cyclone 24.

[0019] This utility model is mainly used for dust removal of barite crushed into smaller particles. Above the conveying mechanism 1 is a crushing device that crushes large pieces of barite into smaller particles. The small particles of barite fall from the discharge port of the crushing device onto the surface of the conveyor belt 11 of the conveying mechanism 1. In the conveying mechanism 1, the conveyor wheel 12 is driven to rotate by a drive motor. The conveyor wheel 12 and the conveyor belt 11 are driven to rotate synchronously by means of gear meshing and other methods. The conveyor belt 11 conveys the small particles of barite to the grinding equipment at the other end for processing into powder.

[0020] The working principle of this utility model is as follows: The negative pressure fan 25 generates a negative pressure effect through the rotation of its internal impeller, which reduces the internal pressure of the cyclone 24 and forms a negative pressure area. When the small-sized barite particles processed by the crushing equipment fall onto the surface of the conveyor belt 11, the negative pressure suction generated by the negative pressure fan 25 acts on the small-sized barite particles on the surface of the conveyor belt 11 through the dust removal hole 13, thereby sucking the dust in the small-sized barite particles into the dust removal hood 21. This dust is transported with the air through the dust removal pipe 23 into the cyclone 24. Since the air containing dust enters the cyclone 24 from the tangential direction at the end of the dust removal pipe 23, the dust and air will swirl at high speed inside the cyclone 24. As the mass of the dust is greater than that of air, the dust will be thrown against the inner wall of the cyclone 24 under the action of centrifugal force, causing the dust to settle down along the inner wall of the cyclone 24 and fall into the dust collection box 3. This avoids dust pollution when small-particle barite falls. During the entire process of conveying small-particle barite in the conveying mechanism 1, it is subjected to negative pressure suction, which can prevent the small-particle barite from raising dust due to mutual friction during the conveying process. Thus, the dust removal treatment of small-particle barite is completed. After the dust removal treatment, the small-particle barite is unlikely to form significant dust pollution before grinding, regardless of whether it has undergone transmission, transfer, storage and other treatments, thus improving environmental protection.

[0021] It should be noted that the dust collection box 3 is located below the conveying mechanism 1. After the dust enters the dust collection hood 21, it will be transported to the cyclone 24 through the dust collection pipe 23. These dust collection pipes 23 extend outward from the inside of the conveyor belt 11 and downward after leaving the conveying mechanism 1, until they reach the side of the cyclone 24, so that the dust collection pipes 23 and the cyclone 24 are interconnected, thereby ensuring the normal rotation of the conveyor belt 11 and guiding the extracted dust into the cyclone 24. In addition, the bottom of the negative pressure fan 25 is located inside the cyclone 24 and is used to draw in air, so that a negative pressure is formed inside the cyclone 24. A dust filter screen is set at the intersection of the negative pressure fan 25 and the cyclone 24 to prevent the air from carrying dust into the negative pressure fan 25.

[0022] Furthermore, the aperture of the dust removal hole 13 is preferably set to gradually increase from the outside to the inside of the conveyor belt 11. The negative pressure suction generated by the negative pressure fan 25 will form an airflow from the outside to the inside of the conveyor belt 11 at the dust removal hole 13. Since the aperture of the dust removal hole 13 is larger near the inside of the conveyor belt 11, the airflow formed near the outside of the dust removal hole 13 will be larger, thereby better extracting dust from the barite and improving the dust removal effect of the dust removal mechanism 2 on the barite through the dust removal hole 13.

[0023] like Figure 1-3 As shown, in one of the preferred embodiments of this utility model, the outer surface of the conveyor belt 11 is provided with a plurality of outwardly protruding protrusions 14, and the positions of the protrusions 14 and the dust removal holes 13 are staggered. After small-sized barite falls onto the surface of the conveyor belt 11, the protrusions 14 can support these barite particles, so that a cavity is formed between the bottom of the barite and the adjacent protrusions 14, preventing the bottom of the barite from blocking the dust removal holes 13. These cavities allow the airflow formed by the negative pressure suction to act better on the barite, and draw the dust in it into the dust removal hood 21 through the dust removal holes 13, thereby improving the dust removal effect.

[0024] like Figure 1As shown, in one of the preferred embodiments of this utility model, baffle plates 15 are provided on both sides of the top of the conveying mechanism 1. A gap is provided between the baffle plates 15 and the conveyor belt 11 to allow the conveyor belt 11 to move. Any baffle plate 15 is inclined to the side away from the other baffle plate 15. After small-sized barite falls onto the surface of the conveyor belt 11, the baffle plates 15 can prevent the small-sized barite from falling from both sides of the conveyor belt 11 under the action of inertia. The inclined baffle plates 15 can make the barite falling onto the surface of the baffle plates 15 slide onto the surface of the conveyor belt 11, so that the small-sized barite is concentrated and conveyed through the conveyor belt 11. In addition, when small-sized barite falls onto the surface of the conveyor belt 11, some dust will inevitably be raised. Under the negative pressure suction generated by the negative pressure fan 25, the amplitude of this dust will not be too large. The baffle plates 15 can prevent this dust from drifting outward from both sides of the conveyor belt 11, so that it is gradually sucked into the dust collection hood 21 by the negative pressure suction, thereby improving the dust collection effect.

[0025] like Figure 1 As shown, in one of the preferred embodiments of this utility model, a first vibrator 4 is provided on the inner side of the conveyor belt 11. Several vibrating rollers 41 are movably connected to the top of the first vibrator 4. The two ends of the vibrating rollers 41 are movably connected to the outer shell of the first vibrator 4 through shafts. The top of the vibrating rollers 41 abuts against the inner side of the conveyor belt 11 and rotates along the conveying direction of the conveyor belt 11. The first vibrator 4 generates vibration force through the eccentric wheel driven by the motor or electromagnetic vibration. The first vibrator 4 transmits the vibration to the vibrating rollers 41. The vibrating rollers 41 abut against the conveyor belt 11, causing the conveyor belt 11 to vibrate simultaneously. At the same time, it can ensure that the conveyor belt 11 rotates normally. The vibrating conveyor belt 11, in conjunction with the dust removal holes 13 on its surface, can play a similar role to vibration screening. During the conveying of small-sized barite on the surface of the conveyor belt 11, under the action of vibration, smaller particles can gather to the bottom, making it easier to enter the dust removal hood 21 through the dust removal holes 13, thereby efficiently and thoroughly removing dust from the small-sized barite.

[0026] like Figure 1As shown, in one preferred embodiment of this utility model, a second vibrator 5 is provided on the inner side of the conveyor belt 11. A plurality of vibrating rollers 41 are movably connected to the bottom of the second vibrator 5. The bottom of the vibrating rollers 41 abuts against the inner side of the conveyor belt 11 and rotates along the conveying direction of the conveyor belt 11. A material guide plate 6 is provided below the bottom of the conveyor belt 11. The second vibrator 5 generates vibration force through the action of an eccentric wheel driven by a motor or electromagnetic vibration. The structure of the second vibrator 5 is the same as that of the first vibrator 4, and the two are arranged in an inverted manner on the inner side of the conveyor belt 11. The vibration force generated by the second vibrator 5 is transmitted through the bottom... The vibrating roller 41 of the part transmits to the bottom of the conveyor belt 11. Since some barite with a particle size close to that of the dust removal hole 13 is easy to get stuck in the opening of the dust removal hole 13, the dust removal hole 13 is blocked. The second vibrator 5 causes the conveyor belt 11 at the bottom of the conveying mechanism 1 to vibrate, which can disengage the barite stuck in the dust removal hole 13 from the dust removal hole 13, ensuring the dust removal effect of the dust removal mechanism 2. These barite will fall onto the surface of the material guide plate 6. The material guide plate 6 is set at an angle, with its downward tilt side facing the grinding equipment. These barite are guided by the material guide plate 6 to the grinding equipment to be processed into powdered barite.

[0027] like Figure 1 As shown, in one of the preferred embodiments of this utility model, a rolling roller 26 is provided at the top edge of the dust cover 21. The upper surface of the rolling roller 26 abuts against the top of the inner side of the conveyor belt 11. The rolling roller 26 moves in the same direction as the conveyor belt 11. The rolling roller 26 can change the friction type between the dust cover 21 and the conveyor belt 11 from sliding friction to rolling friction, reduce the friction between the two, and improve the smoothness of the conveyor belt 11 during rotation.

[0028] like Figure 1 As shown, in one of the preferred embodiments of this utility model, a screening chamber 31 is provided at the bottom of the dust collection box 3. The screening chamber 31 is provided with at least one screen 32 and at least two discharge ports 33. The two discharge ports 33 are located above and below the screen 32, respectively. A third vibrator 34 is provided at the bottom of the screening chamber 31. The negative pressure suction generated by the negative pressure fan 25 draws the dust into the dust collection box 3 and then into the screening chamber 31. The third vibrator 34 causes the screening chamber 31 to vibrate through the vibration force generated by the eccentric wheel driven by the motor or electromagnetic vibration. The dust is screened by the vibrating screen 32. The larger dust particles are discharged from the upper discharge port 33, and the smaller dust particles are discharged from the lower discharge port 33. Since this dust is generated during the crushing of barite, most of its components are barite. The dust that is screened can be recovered and directly used as barite powder of the corresponding particle size, or it can be processed into barite powder after grinding. It should be noted that a baffle is inserted into the end of the discharge port 33 away from the dust collection box 3 through a slot. The baffle keeps the discharge port 33 in a normally closed state. When a certain amount of dust is collected inside the dust collection box 3, the discharge port 33 is opened by pulling out the baffle, so that the dust inside the dust collection box 3 can be discharged through the discharge port 33. In addition, the bottom of the cyclone 24 is connected to the dust collection box 3 through a flexible hose, which can prevent the vibration generated by the third vibrator 34 from being transmitted to the cyclone 24 and the structure connected to the cyclone 24. A curtain 27 is provided between the hose at the bottom of the cyclone 24 and the top of the dust collection box 3. The curtain 27 can guide the dust at the bottom of the cyclone 24 to fall slowly into the dust collection box 3. The curtain 27 can also serve as an isolation structure between the cyclone 24 and the dust collection box 3, which to a certain extent prevents the rotating airflow in the cyclone 24 from acting on the inside of the dust collection box 3, thereby preventing the dust inside the dust collection box 3 from being lifted by the rotating airflow.

[0029] In summary, this invention uses a negative pressure fan 25 to create a negative pressure area inside the dust collection hood 21. This negative pressure area generates a negative pressure airflow through the dust collection holes 13, which acts on the surface of the conveyor belt 11. When barite, processed into small particles through the crushing process, falls onto the surface of the conveyor belt 11 for conveying, the negative pressure airflow adsorbs the dust from the barite onto the surface of the conveyor belt 11. The smaller dust particles are then transported through the dust collection pipe 23 and settled by the cyclone 24 before falling into the dust collection box 3. This reduces dust pollution during the barite conveying process and allows for the recycling of the collected dust, improving the environmental friendliness of barite processing operations.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dust removal device for barite powder processing, comprising a conveying mechanism (1) and a dust removal mechanism (2), characterized in that, The conveying mechanism (1) includes the following structure: a conveyor belt (11) connected end to end; at least two matching conveyor wheels (12) are provided on the inner side of the conveyor belt (11); and a number of dust removal holes (13) penetrating to the inner side are provided on the outer surface of the conveyor belt (11). The dust removal mechanism (2) includes the following structure: a dust removal hood (21), which is located inside the conveyor belt (11) and has a dust removal port (22) at the top. There is a gap between the dust removal port (22) and the inner surface of the conveyor belt (11) to allow the conveyor belt (11) to move. The bottom of the dust removal hood (21) has a downward-extending dust removal pipe (23). The end of the dust removal pipe (23) away from the dust removal hood (21) has a cyclone (24). The end of the dust removal pipe (23) is fixedly connected to the side of the cyclone (24). The top of the cyclone (24) has a negative pressure fan (25), and the bottom of the cyclone (24) has a dust collection box (3).

2. The dust removal device for barite powder processing according to claim 1, characterized in that, The outer surface of the conveyor belt (11) is provided with a number of outwardly protruding protrusions (14), and the positions of the protrusions (14) and the dust removal holes (13) are staggered.

3. The dust removal device for barite powder processing according to claim 1, characterized in that, The conveying mechanism (1) is provided with baffles (15) on both sides of the top. There is a gap between the baffles (15) and the conveyor belt (11) to allow the conveyor belt (11) to move. Each baffle (15) is tilted away from the other baffle (15).

4. The dust removal device for barite powder processing according to claim 1, characterized in that, The inner side of the conveyor belt (11) is provided with a first vibrator (4), and a number of vibrating rollers (41) are movably connected to the top of the first vibrator (4). The top of the vibrating rollers (41) abuts against the inner side of the conveyor belt (11), and the vibrating rollers (41) rotate along the conveying direction of the conveyor belt (11).

5. The dust removal device for barite powder processing according to claim 1, characterized in that, The inner side of the conveyor belt (11) is provided with a second vibrator (5), and the bottom of the second vibrator (5) is movably connected with a number of vibrating rollers (41). The bottom of the vibrating rollers (41) abuts against the inner side of the conveyor belt (11). The vibrating rollers (41) rotate along the conveying direction of the conveyor belt (11). The bottom of the conveyor belt (11) is provided with a material guide plate (6).

6. The dust removal device for barite powder processing according to claim 1, characterized in that, The dust cover (21) has a rolling roller (26) at its top edge. The upper surface of the rolling roller (26) abuts against the top of the inner side of the conveyor belt (11). The rolling roller (26) moves in the same direction as the conveyor belt (11).

7. The dust removal device for barite powder processing according to claim 1, characterized in that, The dust collection box (3) has a screening chamber (31) at the bottom. The screening chamber (31) has at least one screen (32) and at least two discharge ports (33). The two discharge ports (33) are located above and below the screen (32) respectively. The screening chamber (31) has a third vibrator (34) at the bottom.

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