Grinding dust removal device

Abstract

The utility model belongs to the technical field of grinding dust removal, and particularly relates to a grinding dust removal device which comprises a grinding bin. The top of the grinding bin is fixedly connected with a feeding hopper; the middle part of the grinding bin is rotationally connected with two crushing rollers; two grinding rollers are fixedly connected to the middle of the grinding bin; two fixing rods are fixedly connected to the side wall of the grinding bin; the two fixing rods are oppositely arranged; the end part of the fixed rod is fixedly connected with a dust removal pipe; the middle part is fixedly connected with a fan; the fan is fixedly connected to the interior of the dust removal pipe; a dust suction pipe is fixedly connected to the middle of the dust removal pipe; the middle of the dust suction pipe penetrates through the side wall of the grinding bin. The middle diameter of the dust collection pipe is larger than that of the two ends; the top of the dust removal pipe is fixedly connected with an air outlet pipe; and dust and particles generated in the calcium carbonate grinding process can be effectively removed through the dust removal pipe, pollution caused by the fact that the dust particles are discharged into air is effectively reduced, and dust accumulation on equipment can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding dust removal, in particular to a grinding dust removal device. Background Art

[0002] Calcium carbonate grinding is an important process in the processing, the main purpose of which is to refine calcium carbonate particles to meet specific application requirements.

[0003] Calcium carbonate grinding is usually carried out by mechanical grinding. First, the large pieces of calcium carbonate are crushed by a crushing device to a feed fineness that can enter the grinding mill. Then the crushed small pieces of calcium carbonate are sent to the grinding device for grinding. The ground materials are graded by a grading device, and unqualified powder will be returned to the host machine for re-grinding.

[0004] A large amount of dust particles will be generated during the grinding process of calcium carbonate. These dust particles will float into the outside air and cause air pollution problems.

[0005] To this end, the utility model provides a grinding dust removal device. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a grinding dust removal device described in the utility model comprises a grinding bin; a feed hopper is fixedly connected to the top of the grinding bin; two crushing rollers are rotatably connected to the middle of the grinding bin; two grinding rollers are fixedly connected to the middle of the grinding bin; two fixing rods are fixedly connected to the side walls of the grinding bin; the two fixing rods are arranged oppositely; dust removal pipes are fixedly connected to the ends of the fixing rods; a fan is fixedly connected to the middle; the fan is fixedly connected to the inside of the dust removal pipe; a dust suction pipe is fixedly connected to the middle of the dust removal pipe; the middle of the dust suction pipe passes through the side wall of the grinding bin; the diameter of the dust suction pipe in the middle is larger than that at both ends; an air outlet pipe is fixedly connected to the top of the dust removal pipe; the middle of the air outlet pipe passes through the side wall of the feed hopper; the outlet The end of the air pipe is bent toward the grinding bin; two electric push rods are fixedly connected to the side wall of the grinding bin; the two electric push rods are arranged opposite to each other; the electric push rod is fixedly connected near the top of the grinding bin; the end of the electric push rod is fixedly connected to a first baffle; the middle of the dust removal pipe is fixedly connected to a filter; the filter is fixedly connected between the dust removal pipe and the dust suction pipe. The dust and particulate matter generated during the grinding of calcium carbonate can be effectively removed through the dust removal pipe, effectively reducing the pollution caused by dust particles being discharged into the air, and can effectively reduce the accumulation of dust on the equipment, and can effectively reduce the impurity content in calcium carbonate. Timely removal of dust during the grinding process can reduce the accumulation of dust and lead to a decrease in production efficiency, and effectively improve the purity and quality of the grinding of calcium carbonate products.

[0008] Preferably, a mesh plate is fixedly connected to the bottom of the first baffle; a mesh cover is fixedly connected to the side wall of the mesh plate; a plurality of groups of rubber blocks are fixedly connected to the end of the mesh cover; the plurality of groups of rubber blocks are equidistantly distributed at the end of the mesh cover; the mesh plate and the mesh cover can effectively reduce the amount of calcium carbonate raw material particles present in the dust-laden airflow from entering the dust collection pipe, effectively reduce the amount of dust entering the dust collection pipe, effectively reduce the amount of calcium carbonate raw material particles entering the dust collection pipe, reduce the wear and blockage on the inside of the dust collection pipe, effectively reduce the decrease in dust removal efficiency caused by blockage, and effectively increase the service life of the dust collection pipe.

[0009] Preferably, a first support rod is fixedly connected to the middle of the mesh plate; the first support rod is fixedly connected to the inside of the mesh cover; multiple groups of bristles are fixedly connected to the middle of the first support rod; the multiple groups of bristles are fixedly connected to one end away from the mesh plate; the bristles can effectively clean the inner wall of the dust suction tube, which can effectively reduce the adsorption of dust particles on the inner wall of the dust suction tube when the dust suction tube sucks in the dust-laden airflow, effectively reduce the long-term accumulation of dust particles on the inner wall of the dust suction tube, effectively reduce the problem of poor airflow caused by the accumulation of dust particles, and can effectively reduce the wear of the inner wall of the dust suction tube caused by the long-term accumulation of dust particles, effectively increase the service life of the dust suction tube.

[0010] Preferably, two second support rods are fixedly connected to the middle part of the grinding bin; the two second support rods are arranged opposite to each other; the two second support rods are fixedly connected to the inside of the grinding bin; a scraper is fixedly connected to the middle part of the second support rod; the end of the scraper is in contact with the surface of the corresponding grinding roller; the scraper can effectively scrape off the calcium carbonate attached to the surface of the grinding roller during the grinding process, effectively reduce the calcium carbonate attached to the surface of the grinding roller to form an uneven layer of thickness, effectively reduce the uneven thickness of the surface of the grinding roller resulting in a decrease in the uniformity and efficiency of grinding, and can effectively scrape off the attachments in time to reduce the wear on the surface of the grinding roller, effectively keep the surface of the grinding roller clean and smooth, thereby improving the grinding accuracy and efficiency.

[0011] Preferably, a through hole is provided at the bottom of the dust removal tube; a connecting seat is threadedly connected to the bottom of the dust removal tube; a collecting box is fixedly connected to the bottom of the connecting seat; the fallen dust is collected by the collecting box, and the filtered dust particles can be effectively collected by the collecting box, which effectively reduces the accumulation of dust particles inside the dust removal tube and causes repeated drifting into the airflow, and can effectively reduce the accumulation of dust particles that clog the filter surface; the collecting box can be quickly installed and disassembled through the connecting seat, and the collected dust particles can be effectively cleaned subsequently.

[0012] Preferably, two second baffles are fixedly connected to the top of the connecting seat; the two second baffles are fixedly connected to the inside of the connecting seat; the two second baffles are staggered; the second baffles can effectively block the collected dust particles inside, and the second baffles can effectively guide the dust particles, so that the dust can easily enter the collection box but is difficult to be sucked out, effectively reducing the problem of the fan suction force sucking out the collected dust particles and causing them to float, and effectively improving the dust particle collection efficiency.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The grinding dust removal device described in the utility model can effectively remove dust and particulate matter generated during the grinding process of calcium carbonate through a dust removal pipe, effectively reduce the pollution caused by dust particles being discharged into the air, and can effectively reduce the accumulation of dust on the equipment.

[0015] 2. The grinding dust removal device described in the utility model can effectively reduce the amount of dust entering the dust collection pipe by the mesh plate and the mesh cover, effectively reduce the amount of calcium carbonate raw material particles entering the dust collection pipe, and effectively reduce the amount of calcium carbonate raw material particles entering the dust collection pipe, thereby reducing the wear and blockage caused to the inside of the dust collection pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of a grinding dust removal device in the utility model;

[0018] Figure 2 It is a structural schematic diagram of the dust suction pipe in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the scraper in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the collection box in the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the bristles in the utility model;

[0022] In the figure: 1. fixing rod; 11. dust removal pipe; 12. fan; 13. dust suction pipe; 14. exhaust pipe; 15. electric push rod; 16. first baffle; 17. filter; 2. mesh plate; 21. mesh cover; 22. rubber block; 3. first support rod; 31. bristles; 4. second support rod; 41. scraper; 5. through hole; 51. connecting seat; 52. collecting box; 6. second baffle; 8. grinding chamber; 80. feed hopper; 81. crushing drum; 82. grinding drum. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figures 1 to 4 As shown, a grinding dust removal device described in an embodiment of the utility model comprises a grinding chamber 8; a feed hopper 80 is fixedly connected to the top of the grinding chamber 8; two crushing rollers 81 are rotatably connected to the middle of the grinding chamber 8; two grinding rollers 82 are fixedly connected to the middle of the grinding chamber 8; two fixing rods 1 are fixedly connected to the side wall of the grinding chamber 8; the two fixing rods 1 are arranged oppositely; a dust removal pipe 11 is fixedly connected to the end of the fixing rod 1; a fan 12 is fixedly connected to the middle; the fan 12 is fixedly connected to the inside of the dust removal pipe 11; a dust suction pipe 13 is fixedly connected to the middle of the dust removal pipe 11; the middle of the dust suction pipe 13 passes through the side wall of the grinding chamber 8; the diameter of the dust suction pipe 13 is greater than The two ends are arranged; the top of the dust removal pipe 11 is fixedly connected with an air outlet pipe 14; the middle part of the air outlet pipe 14 passes through the side wall of the feed hopper 80; the end of the air outlet pipe 14 is bent toward the grinding bin 8; the side wall of the grinding bin 8 is fixedly connected with two electric push rods 15; the two electric push rods 15 are arranged oppositely; the electric push rod 15 is fixedly connected to the grinding bin 8 near the top; the end of the electric push rod 15 is fixedly connected with a first baffle 16; the middle part of the dust removal pipe 11 is fixedly connected with a filter screen 17; the filter screen 17 is fixedly connected between the dust removal pipe 11 and the dust suction pipe 13; when working, when the calcium carbonate raw material is ground, the electric push rod 15 is powered on and opened, and the electric push rod 15 is controlled to make the output end receive The first baffle 16 is moved to both sides by the electric push rod 15, and the calcium carbonate raw material is poured into the grinding bin 8 through the feed hopper 80. The first baffle 16 is pushed and closed by the electric push rod 15 to grind the raw material. After the calcium carbonate enters the grinding bin 8, the raw material is first crushed by two crushing rollers 81, and the crushed raw material is then ground by two grinding rollers 82. The fan 12 is powered on and turned on to blow air into the air outlet pipe 14, so that the dust is blown into the grinding bin 8. The airflow is discharged into the grinding bin 8 through the air outlet pipe 14. During the rotation of the fan 12, negative pressure is generated at the bottom, and negative pressure is generated inside the dust removal pipe 11. The pressure is applied to the end of the dust suction pipe 13 to generate suction force, and the dust generated when the calcium carbonate raw material is poured in and ground is sucked in by the end of the dust suction pipe 13, and the dust-carrying air flow passes through the filter 17 to filter the particulate impurities, and the filtered air flow is discharged by the air outlet pipe 14. The dust and particulate matter generated in the process of grinding calcium carbonate can be effectively removed through the dust removal pipe 11, and the pollution caused by dust particles being discharged into the air can be effectively reduced, and the accumulation of dust on the equipment can be effectively reduced, and the impurity content in calcium carbonate can be effectively reduced. Timely removal of dust in the grinding process can reduce the decrease in production efficiency caused by dust accumulation, and effectively improve the purity and quality of the grinding of calcium carbonate products.

[0025] like Figure 2 and Figure 5 As shown, the bottom of the first baffle 16 is fixedly connected to the mesh plate 2; the side wall of the mesh plate 2 is fixedly connected to the mesh cover 21; the end of the mesh cover 21 is fixedly connected to multiple groups of rubber blocks 22; the multiple groups of rubber blocks 22 are evenly distributed at the end of the mesh cover 21; during operation, when the calcium carbonate raw material is poured, the electric push rod 15 is used to move the first baffle 16 toward the dust suction pipe 13, and when the first baffle 16 moves, the mesh plate 2 is also driven to move, so that the mesh cover 21 moves to the outside of the dust suction pipe 13, and when passing through the surface of the dust suction pipe 13, the multiple groups of rubber blocks 22 are elastically bent, and the multiple groups of rubber blocks 22 are used to move the mesh cover 21 to the outside of the dust suction pipe 13. The end of the mesh cover 21 is blocked outside the dust suction pipe 13. When the dust suction pipe 13 is suctioning dust, large particles are isolated through the mesh plate 2 and the mesh cover 21. The mesh plate 2 and the mesh cover 21 can effectively reduce the amount of calcium carbonate raw material particles in the dust-laden airflow from entering the dust suction pipe 13, effectively reduce the amount of dust entering the dust suction pipe 13, effectively reduce the amount of calcium carbonate raw material particles entering the dust suction pipe 13, reduce the wear and blockage caused to the inside of the dust suction pipe 13, effectively reduce the decrease in dust removal efficiency caused by blockage, and effectively increase the service life of the dust suction pipe 13.

[0026] like Figure 5 As shown, a first support rod 3 is fixedly connected to the middle part of the mesh plate 2; the first support rod 3 is fixedly connected to the inside of the mesh cover 21; a plurality of groups of bristles 31 are fixedly connected to the middle part of the first support rod 3; the plurality of groups of bristles 31 are fixedly connected to one end away from the mesh plate 2; during operation, when the mesh cover 21 moves, the first support rod 3 moves at the same time, so that the first support rod 3 moves the bristles 31 to the inside of the dust suction pipe 13 through the end of the dust suction pipe 13, and the inner wall of the dust suction pipe 13 is cleaned by the bristles 31, and the inner wall of the dust suction pipe 13 can be effectively cleaned by the bristles 31, which can effectively reduce the dust particles adsorbed on the inner wall of the dust suction pipe 13 when the dust suction pipe 13 sucks in the dust-laden airflow, effectively reduce the long-term accumulation of dust particles on the inner wall of the dust suction pipe 13, effectively reduce the problem of poor airflow caused by the accumulation of dust particles, and can effectively reduce the wear of the inner wall of the dust suction pipe 13 caused by the long-term accumulation of dust particles, thereby effectively increasing the service life of the dust suction pipe 13.

[0027] like Figure 2 and Figure 3As shown, two second support rods 4 are fixedly connected to the middle part of the grinding bin 8; the two second support rods 4 are arranged opposite to each other; the two second support rods 4 are fixedly connected to the inside of the grinding bin 8; a scraper 41 is fixedly connected to the middle part of the second support rod 4; the end of the scraper 41 is in contact with the surface of the corresponding grinding roller 82; during operation, when calcium carbonate is ground by the grinding roller 82, the scraper 41 is fixed to both sides of the grinding roller 82 by the second support rod 4, and when the grinding roller 82 is grinding and rotating, the surface residue is scraped off by the scraper 41, and the calcium carbonate attached to the surface of the grinding roller 82 during the grinding process can be effectively scraped off by the scraper 41, effectively reducing the uneven thickness of calcium carbonate attached to the surface of the grinding roller 82 to form a layer, effectively reducing the uneven thickness of the surface of the grinding roller 82 leading to a decrease in grinding uniformity and efficiency, and can effectively scrape off the attachments in time to reduce the wear on the surface of the grinding roller 82, effectively keeping the surface of the grinding roller 82 clean and smooth, thereby improving the grinding accuracy and efficiency.

[0028] like Figures 1 to 4 As shown, a through hole 5 is provided at the bottom of the dust removal pipe 11; a connecting seat 51 is threadedly connected to the bottom of the dust removal pipe 11; a collecting box 52 is fixedly connected to the bottom of the connecting seat 51; when working, the connecting seat 51 is installed on the bottom of the dust removal pipe 11 and twisted, and the collecting box 52 is fixed to the bottom of the dust removal pipe 11 through the connecting seat 51, and the particles fall after the filter 17 filters the fine dust, and the falling dust is collected by the collecting box 52, and the filtered dust particles can be effectively collected by the collecting box 52, which effectively reduces the accumulation of dust particles inside the dust removal pipe 11 and causes them to repeatedly drift into the airflow, and can effectively reduce the accumulation of dust particles that clog the surface of the filter 17, and the collecting box 52 can be quickly installed and disassembled through the connecting seat 51, which can effectively allow the collected dust particles to be subsequently cleaned.

[0029] like Figure 4 As shown, two second baffles 6 are fixedly connected to the top of the connecting seat 51; the two second baffles 6 are fixedly connected to the inside of the connecting seat 51; the two second baffles 6 are staggered; when working, the dust particles collected in the collection box 52 are blocked by the second baffle 6, and when the fan 12 rotates to generate suction, the second baffle 6 blocks the dust particles from being sucked out, and the second baffle 6 can effectively block the collected dust particles inside, and the second baffle 6 can effectively guide the dust particles, so that the dust can easily enter the collection box 52 but is difficult to be sucked out, which effectively reduces the problem of the fan 12 suction sucking out the collected dust particles and causing them to float, and effectively improves the dust particle collection efficiency.

[0030] During operation, when the calcium carbonate raw material is ground, the electric push rod 15 is powered on and opened, and the electric push rod 15 is controlled to shrink the output end, and the first baffle 16 is moved to both sides by the electric push rod 15, and the calcium carbonate raw material is poured into the grinding bin 8 through the feed hopper 80, and then the first baffle 16 is pushed and closed by the electric push rod 15 to grind the raw material. After the calcium carbonate enters the grinding bin 8, the raw material is first crushed by two crushing rollers 81, and the crushed raw material is then ground by two grinding rollers 82, and the fan 12 is powered on and turned on, so that the fan 12 blows into the outlet pipe 14. The fan 12 is blown from the bottom to blow the dust into the grinding chamber 8, and the airflow is discharged into the grinding chamber 8 through the air outlet pipe 14. When the fan 12 rotates, negative pressure is generated at the bottom. The negative pressure inside the dust removal pipe 11 generates suction through the end of the dust suction pipe 13. The dust generated when the calcium carbonate raw material is poured in and ground is sucked in by the end of the dust suction pipe 13. The airflow with dust passes through the filter 17 to filter the particulate impurities, and the filtered airflow is discharged from the air outlet pipe 14. When the calcium carbonate raw material is poured in, the first baffle 16 is moved toward the dust suction pipe 13 through the electric push rod 15. When the first baffle 16 The mesh plate 2 is moved to move at the same time, so that the mesh cover 21 moves to the outside of the dust suction pipe 13. When passing through the surface of the dust suction pipe 13, the multiple groups of rubber blocks 22 are elastically bent, and the end of the mesh cover 21 is blocked outside the dust suction pipe 13 by the multiple groups of rubber blocks 22. When the dust suction pipe 13 is sucking dust, large particles are isolated by the mesh plate 2 and the mesh cover 21. When the mesh cover 21 moves, the first support rod 3 moves at the same time, so that the first support rod 3 moves the bristles 31 to the inside of the dust suction pipe 13 through the end of the dust suction pipe 13, and the inner wall of the dust suction pipe 13 is cleaned by the bristles 31. When calcium carbonate passes through the grinding roller During the grinding process of the cylinder 82, the scraper 41 is fixed on both sides of the grinding cylinder 82 through the second support rod 4. When the grinding cylinder 82 rotates for grinding, the surface residue is scraped off by the scraper 41, and the connecting seat 51 is installed at the bottom of the dust removal pipe 11 and twisted. The collecting box 52 is fixed to the bottom of the dust removal pipe 11 through the connecting seat 51. The filter screen 17 filters the fine dust and the particles fall off. The dust particles collected in the collecting box 52 are blocked by the second baffle 6. When the fan 12 rotates to generate suction, the second baffle 6 prevents the dust particles from being sucked out.

[0031] 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 grinding dust removal device, comprising a grinding chamber (8); characterized in that: The top of the grinding chamber (8) is fixedly connected with a feed hopper (80); the middle of the grinding chamber (8) is rotatably connected with two crushing rollers (81); the middle of the grinding chamber (8) is fixedly connected with two grinding rollers (82); the side wall of the grinding chamber (8) is fixedly connected with two fixing rods (1); the two fixing rods (1) are arranged opposite to each other; the ends of the fixing rods (1) are fixedly connected with a dust removal pipe (11); the middle part is fixedly connected with a fan (12); the fan (12) is fixedly connected to the inside of the dust removal pipe (11); the middle part of the dust removal pipe (11) is fixedly connected with a dust suction pipe (13); the middle part of the dust suction pipe (13) passes through the side wall of the grinding chamber (8); the dust suction pipe (13) The diameter of the middle part is larger than that of the two ends; the top of the dust removal pipe (11) is fixedly connected with an air outlet pipe (14); the middle part of the air outlet pipe (14) penetrates the side wall of the feed hopper (80); the end of the air outlet pipe (14) is bent toward the grinding bin (8); the side wall of the grinding bin (8) is fixedly connected with two electric push rods (15); the two electric push rods (15) are arranged opposite to each other; the electric push rods (15) are fixedly connected to the grinding bin (8) near the top; the end of the electric push rod (15) is fixedly connected with a first baffle (16); the middle part of the dust removal pipe (11) is fixedly connected with a filter screen (17); the filter screen (17) is fixedly connected between the dust removal pipe (11) and the dust suction pipe (13).

2. A grinding dust removal device according to claim 1, characterized in that: The bottom of the first baffle (16) is fixedly connected to a mesh plate (2); the side wall of the mesh plate (2) is fixedly connected to a mesh cover (21); the end of the mesh cover (21) is fixedly connected to a plurality of groups of rubber blocks (22); the plurality of groups of rubber blocks (22) are evenly distributed at the end of the mesh cover (21).

3. A grinding dust removal device according to claim 2, characterized in that: A first support rod (3) is fixedly connected to the middle of the mesh plate (2); the first support rod (3) is fixedly connected to the inside of the mesh cover (21); a plurality of groups of bristles (31) are fixedly connected to the middle of the first support rod (3); the plurality of groups of bristles (31) are fixedly connected to an end away from the mesh plate (2).

4. A grinding dust removal device according to claim 3, characterized in that: Two second support rods (4) are fixedly connected to the middle of the grinding bin (8); the two second support rods (4) are arranged opposite to each other; the two second support rods (4) are fixedly connected inside the grinding bin (8); a scraper (41) is fixedly connected to the middle of the second support rod (4); the end of the scraper (41) is in contact with the surface of the corresponding grinding roller (82).

5. A grinding dust removal device according to claim 4, characterized in that: A through hole (5) is provided at the bottom of the dust removal pipe (11); a connecting seat (51) is threadedly connected to the bottom of the dust removal pipe (11); and a collecting box (52) is fixedly connected to the bottom of the connecting seat (51).

6. A grinding dust removal device according to claim 5, characterized in that: Two second baffles (6) are fixedly connected to the top of the connection seat (51); the two second baffles (6) are fixedly connected inside the connection seat (51); and the two second baffles (6) are staggered.

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