Dust removal type barite particle screening device

Abstract

The invention provides a dust removal type barite particle screening device which comprises a box body, and a feeding sliding groove is formed in the top of the box body; the inlet end of the dust collection and separation equipment extends into the box body; a magnetic separation assembly is further arranged in the box body, and the feeding sliding groove directly faces the magnetic separation assembly. The impurity guide groove is located below the magnetic separation assembly, and the upper end of the impurity guide groove is connected with a magnetic impurity outlet of the magnetic separation assembly; and the screening machine is located below the magnetic separation assembly, and an inlet of the screening machine is connected with a pure product material outlet of the magnetic separation assembly. The dust collection and separation device is compact in structure, dust-containing gas in the box body is continuously sucked and separated through the dust collection and separation device, directional airflow facing the dust collection and separation device is formed in the box body, dust is prevented from escaping from the feeding sliding groove and other parts, the working environment is improved, and environmental pollution is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of barite processing devices, and in particular to a dust removal type barite particle screening device. Background Art

[0002] Barite powder, also known as barium sulfate powder, is colorless and transparent when pure. Impurities can cause it to be dyed in various colors. It has a white streak, a glassy luster, and is transparent to translucent. Barite powder is primarily used as a weighting agent in oil and gas drilling muds, in the production of lithopone, and as an X-ray shielding agent in medicine, the atomic energy industry, vehicle brake materials, packaging tape, high-end paints, and hospital radiation-proof gravity walls. Furthermore, barium sulfate is not absorbed in the gastrointestinal tract. Maintaining a high concentration, it blocks X-ray transmission, resulting in clear imaging. It is non-toxic to the human body, making it suitable for esophageal and gastrointestinal radiography.

[0003] After barite powder is ground, it undergoes further screening through processes such as magnetic separation and particle size screening. This not only improves product purity but also separates products of different particle sizes to suit various applications. Dry magnetic separators are commonly used in the barite powder processing industry. They employ a semicircular magnet placed within a drum, secured by an external bracket. When the barite powder to be screened falls onto one side of the drum, the magnet's force penetrates the drum's side, trapping the magnetic impurities in the barite powder on the drum's outer wall. As the magnetic impurities rotate to the side without the magnet, they lose their magnetic attraction and are ejected by the drum's centrifugal force.

[0004] During the dry magnetic separation process, the free fall of barite powder and the disturbance of the drum sidewalls generate a significant amount of dust. Furthermore, the particle size separation process also generates significant dust. This dust easily escapes through the device's discharge and feed ports, posing a health risk to workers and polluting the environment. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a dust removal type barite particle screening device.

[0006] The present invention is achieved through the following technical solutions.

[0007] The dust removal type barite particle screening device provided by the present invention comprises:

[0008] A box body, wherein a feeding chute is provided on the top of the box body;

[0009] A dust collection and separation device, the inlet end of which extends into the box body, and the dust collection and separation device is used to absorb dust-laden gas from the box body and separate it;

[0010] The box is also provided with:

[0011] A magnetic separation component, the feed chute is opposite to the magnetic separation component, and the magnetic separation component is used to separate magnetic impurities and pure materials from the materials from the feed chute;

[0012] An impurity guide trough is located below the magnetic separation component, and an upper end of the impurity guide trough is connected to the magnetic impurity outlet of the magnetic separation component;

[0013] The screening machine is located below the magnetic separation component, and the inlet of the screening machine is connected with the pure material outlet of the magnetic separation component.

[0014] Furthermore, the box is also provided with:

[0015] a first pure product guide groove, located below the magnetic separation assembly, with the upper end of the first pure product guide groove connected to the pure product outlet of the magnetic separation assembly, and the lower end of the first pure product guide groove facing the first side wall of the box body;

[0016] The upper end of the second pure product guide groove contacts the first side wall of the box body and is connected to the lower end of the first pure product guide groove. The lower end of the second pure product guide groove is connected to the inlet of the screening machine.

[0017] The pure materials are concentrated by the first pure product guide groove, and the second pure product guide groove guides the pure materials to the inlet of the screening machine, thereby avoiding the dispersion and scattering of the pure materials, achieving high collection efficiency and improving product utilization rate.

[0018] Furthermore, the second pure product guide groove is arc-shaped with the concave arc surface facing upward.

[0019] This facilitates the pure product materials to be concentrated in the middle of the second pure product guide groove and to flow out, thereby improving the collection efficiency.

[0020] Furthermore, the dust collection and separation equipment includes an exhaust fan, an air suction hood and a dust removal box. The outlet of the exhaust fan is connected to the dust removal box through a pipeline, and the inlet of the exhaust fan is connected to the air suction hood through a pipeline.

[0021] The exhaust fan provides power to create negative pressure in the suction hood, which facilitates the continuous suction of air in the box, and discharges the air after gas-solid separation through the dust removal box, thereby improving environmental protection.

[0022] Furthermore, a cyclone separator is provided on the inlet pipeline of the exhaust fan, the air flow outlet of the cyclone separator is connected to the inlet of the exhaust fan, and the air flow inlet of the cyclone separator is connected to the suction hood.

[0023] Pre-separation through the cyclone separator makes it easier to remove dust with larger particle sizes, reduces the impact wear on the exhaust fan blades, and extends the service life of the device.

[0024] Furthermore, the dust removal box is provided with a filter plate, a filter cage and an air intake pipe, the filter plate is located in the middle of the box body, the filter cage is provided on the filter plate, one end of the air intake pipe extends into the filter cage from the bottom of the filter cage, and the other end of the air intake pipe is connected to the outlet of the exhaust fan; a mesh cover is provided on the outer wall of the filter cage, a water distribution cover is provided just above the filter cage, a ring-shaped water distribution pipe is provided on the lower side of the water distribution cover, a plurality of nozzles are distributed on the inside of the water distribution pipe, and the nozzles are arranged obliquely downward toward the mesh cover; an air outlet is provided on the top of the dust removal box.

[0025] The power of the exhaust fan is used to transport the gas into the filter cage, so that the gas is dispersed and flows out along the side wall of the filter cage; water is sprayed circumferentially to the top of the mesh cover through the nozzles distributed in a ring along the water distribution pipe. Under the adsorption and guidance of the flexible mesh cover, the water flows downward continuously along the mesh cover, forming a continuous breathable water curtain barrier; when the dust-laden gas flows out through the side wall of the filter cage, the moisture in the mesh cover can fully absorb the dust, thereby achieving sufficient dust removal; at the same time, under the action of water flow, the dust attached to the outer wall of the filter cage and the mesh cover is washed down and concentrated to the bottom of the dust removal box through the filter plate, avoiding blockage and having strong continuous working ability.

[0026] Furthermore, a water inlet pipe is provided on the water distribution cover, one end of the water inlet pipe is connected to the water distribution pipe, and the other end of the water inlet pipe extends out of the box.

[0027] The other end of the water inlet pipe can be used to connect to an external tap water pipe or other pressure water source, which is convenient for supplying water to the water distribution pipe and improves the continuous working capacity.

[0028] Furthermore, the filter cage is spherical, and an annular boss is provided at the bottom of the filter cage. A through groove adapted to the annular boss is provided in the middle of the filter plate, and the annular boss is inserted downward into the through groove in the middle of the filter plate; a support block is also fixed on the inner wall of the dust removal box, and the edge of the filter plate is overlapped on the support block.

[0029] The filter cage can be directly removed from the filter plate, and the filter plate can be directly removed from the support block, avoiding rigid connection, facilitating disassembly and assembly, and improving maintenance efficiency.

[0030] Furthermore, the magnetic separation component includes a circular drum, with brackets provided at both ends of the circular drum, the brackets being connected to the circular drum through bearings, a magnet being provided inside the circular drum, the magnet being attached to one side wall of the circular drum, and the brackets being fixedly connected to the magnet; a gear ring is also provided on the inner wall of one end of the drum, a motor is also provided on the bracket, a gear is provided on the output shaft of the motor, and the gear is meshed with the gear ring; the outlet of the feed chute is located directly above the magnet and obliquely downward facing the circular drum.

[0031] The motor drives the circular drum to rotate through the meshing of the gear ring. The meshing part is located inside the circular drum, which reduces the impact of dust and extends the service life of the transmission components. At the same time, the material from the feed chute falls directly above the magnet. Under the interception and rotation of the circular drum, the magnetic force of the magnet passes through the circular drum and adsorbs the magnetic impurities on the circular drum. When the lower side of the circular drum rotates away from the magnet, the magnetic impurities are thrown toward the feed chute under the action of centrifugal force, realizing the separation of magnetic impurities with good reliability.

[0032] Furthermore, the bracket is provided with a connecting plate, which extends from both ends of the circular drum into the circular drum and is connected to the magnet through bolts.

[0033] Easy to fix the magnet and easy to assemble and disassemble.

[0034] The beneficial effects of the present invention are:

[0035] By adopting the present invention, the dust-containing gas in the box is continuously sucked and separated by the dust suction and separation equipment, so that a directional airflow toward the dust suction and separation equipment is formed in the box, thereby preventing dust from escaping from the feed chute and other parts, improving the working environment, and avoiding environmental pollution; at the same time, the present invention has a compact structure, separates magnetic impurities through a magnetic separation component, and then screens them through a screening machine, thereby realizing continuous purification and screening processing, and improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the present invention.

[0037] Figure 2 For the present invention Figure 1 Schematic diagram of the internal structure viewed from the side.

[0038] Figure 3 Schematic diagram of the internal structure of the dust removal box.

[0039] In the figure: 1-box; 2-feed chute; 3-impurity guide chute; 4-first pure product guide chute; 5-second pure product guide chute; 6-screening machine; 7-exhaust fan; 8-suction hood; 9-cyclone separator; 10-dust removal box; 11-filter plate; 12-filter cage; 13-air inlet pipe; 14-mesh cover; 15-water distribution hood; 16-water distribution pipe; 17-water inlet pipe; 18-annular boss; 19-support block; 20-circular drum; 21-bracket; 22-magnet; 23-bearing; 24-gear ring; 25-motor; 26-gear; 27-connecting plate. DETAILED DESCRIPTION

[0040] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0041] The present invention refers to Figure 1-3 .

[0042] The present invention provides a dust removal type barite particle screening device, comprising:

[0043] A box body 1, wherein a feed chute 2 is provided on the top of the box body 1;

[0044] A dust collection and separation device, the inlet end of which extends into the box body 1, and the dust collection and separation device is used to absorb dust-laden gas from the box body 1 and separate it;

[0045] The box 1 is also provided with:

[0046] Magnetic separation component, the feed chute 2 is directly opposite to the magnetic separation component, and the magnetic separation component is used to separate magnetic impurities and pure materials from the materials from the feed chute 2;

[0047] The impurity guide trough 3 is located below the magnetic separation component, and the upper end of the impurity guide trough 3 is connected to the magnetic impurity outlet of the magnetic separation component;

[0048] The screening machine 6 is located below the magnetic separation component, and the inlet of the screening machine 6 is connected to the pure material outlet of the magnetic separation component.

[0049] During operation, the barite particle material enters the housing 1 from the feed chute 2 and falls on the magnetic separation component, and is separated into magnetic impurities and pure material by the magnetic separation component. Among them, the magnetic impurities fall on the impurity guide trough 3 and are exported to the outside of the housing 1 through the impurity guide trough 3; the pure material falls into the screening machine 6, which is used to screen the pure material to remove excessively large particles, or to screen the pure material into products of various particle sizes, and output the products of various particle sizes to the outside of the housing 1 to adapt to various uses and flow into the market. A large amount of dust will be generated when the material is naturally scattered, when it is disturbed by the magnetic separation component, and when it is screened by the screening machine 6. Under the action of the dust collection and separation equipment, the airflow in the housing 1, the feed chute 2, and the product outlet of the screening machine 6 all flows to the dust collection and separation equipment. After the barite particles are separated by the dust collection and separation equipment, air is discharged, thereby preventing dust from escaping from the feed chute 2 and other parts.

[0050] Preferably, the screening machine 6 is a multi-stage screening machine 6 .

[0051] By adopting the present invention, the dust-containing gas in the box 1 is continuously sucked and separated by the dust suction and separation equipment, so that a directional airflow toward the dust suction and separation equipment is formed in the box 1, thereby preventing dust from escaping from the feed chute 2 and other parts, improving the working environment, and avoiding environmental pollution; at the same time, the present invention has a compact structure, separates magnetic impurities through a magnetic separation component, and then screens them through a screening machine 6, thereby realizing continuous purification and screening processing, and improving production efficiency and product quality.

[0052] Furthermore, the box 1 is also provided with:

[0053] A first pure product guide groove 4 is located below the magnetic separation assembly, the upper end of the first pure product guide groove 4 is connected to the pure product outlet of the magnetic separation assembly, and the lower end of the first pure product guide groove 4 faces the first side wall of the box body 1;

[0054] The upper end of the second pure product guide groove 5 contacts the first side wall of the box body 1 and is connected to the lower end of the first pure product guide groove 4. The lower end of the second pure product guide groove 5 is connected to the inlet of the screening machine 6.

[0055] The pure material is concentrated by the first pure product guide trough 4, and the second pure product guide trough 5 guides the pure material to the inlet of the screening machine 6, thereby avoiding the pure material from being scattered and spilled, achieving high collection efficiency and improving product utilization rate.

[0056] Furthermore, the second pure product guide groove 5 is arc-shaped with the concave arc surface facing upward.

[0057] This facilitates the pure material to be concentrated in the middle of the second pure material guide groove 5 and to flow out, thereby improving the collection efficiency.

[0058] Furthermore, the dust collection and separation equipment includes an exhaust fan 7, an air suction hood 8 and a dust removal box 10. The outlet of the exhaust fan 7 is connected to the dust removal box 10 through a pipeline, and the inlet of the exhaust fan 7 is connected to the air suction hood 8 through a pipeline.

[0059] The exhaust fan 7 provides power to generate negative pressure in the suction hood 8, which facilitates continuous suction of the air in the box body 1, and discharges the air after gas-solid separation through the dust removal box 10, thereby improving environmental protection.

[0060] Furthermore, a cyclone separator 9 is provided on the inlet pipeline of the exhaust fan 7 , the air flow outlet of the cyclone separator 9 is connected to the inlet of the exhaust fan 7 , and the air flow inlet of the cyclone separator 9 is connected to the suction hood 8 .

[0061] The cyclone separator 9 performs pre-separation, which facilitates the removal of dust with larger particle sizes, reduces the impact wear on the blades of the exhaust fan 7, and extends the service life of the device.

[0062] Furthermore, the dust removal box 10 is provided with a filter plate 11, a filter cage 12 and an air intake pipe 13. The filter plate 11 is located in the middle of the box body 1, and the filter cage 12 is provided on the filter plate 11. One end of the air intake pipe 13 extends into the filter cage 12 from the bottom of the filter cage 12, and the other end of the air intake pipe 13 is connected to the outlet of the exhaust fan 7; a mesh cover 14 is provided on the outer wall of the filter cage 12, and a water distribution cover 15 is provided just above the filter cage 12. A ring-shaped water distribution pipe 16 is provided on the lower side of the water distribution cover 15, and a plurality of nozzles are distributed on the inside of the water distribution pipe 16, and the nozzles are arranged obliquely downward toward the mesh cover 14; an air outlet is provided at the top of the dust removal box 10.

[0063] The power of the exhaust fan 7 is used to transport the gas into the filter cage 12, so that the gas is dispersed and flows out along the side wall of the filter cage 12; water is sprayed circumferentially to the top of the mesh cover 14 through the nozzles distributed along the ring on the water distribution pipe 16. Under the adsorption and guidance of the flexible mesh cover 14, the water flows downward continuously along the mesh cover 14, forming a continuous breathable water curtain barrier; when the dust-laden gas flows out through the side wall of the filter cage 12, the moisture in the mesh cover 14 can fully absorb the dust, thereby achieving sufficient dust removal; at the same time, under the action of the water flow, the dust attached to the outer wall of the filter cage 12 and the mesh cover 14 is washed down and concentrated to the bottom of the dust removal box 10 through the filter plate 11, avoiding blockage and having strong continuous working ability.

[0064] Furthermore, a water inlet pipe 17 is provided on the water distribution cover 15 , one end of the water inlet pipe 17 is connected to the water distribution pipe 16 , and the other end of the water inlet pipe 17 extends out of the box body 1 .

[0065] The other end of the water inlet pipe 17 can be used to connect to an external pressure water source such as a tap water pipe, so as to supply water to the water distribution pipe 16 and improve the continuous working capacity.

[0066] Furthermore, the filter cage 12 is spherical, and an annular boss 18 is provided at the bottom of the filter cage 12. A through groove adapted to the annular boss 18 is provided in the middle of the filter plate 11, and the annular boss 18 is inserted downward into the through groove in the middle of the filter plate 11; a support block 19 is also fixed on the inner wall of the dust removal box 10, and the edge of the filter plate 11 is overlapped on the support block 19.

[0067] The filter cage 12 can be directly removed from the filter plate 11, and the filter plate 11 can be directly removed from the support block 19, thus avoiding a rigid connection, facilitating disassembly and assembly, and improving maintenance efficiency.

[0068] Furthermore, the magnetic separation component includes a running drum 20, and brackets 21 are provided at both ends of the running drum 20. The brackets 21 are connected to the running drum 20 through bearings 23. A magnet 22 is provided in the running drum 20, and the magnet 22 is attached to a side wall of the running drum 20. The bracket 21 is fixedly connected to the magnet 22; a gear ring 24 is also provided on the inner wall of one end of the drum, and a motor 25 is also provided on the bracket 21. A gear 26 is provided on the output shaft of the motor 25, and the gear 26 is meshed with the gear ring 24; the outlet of the feed chute 2 is located directly above the magnet 22 and obliquely downward facing the running drum 20.

[0069] Preferably, the upper end of the impurity guide groove 3 is located directly below the edge of the magnet 22 on one side close to the axis of the running drum 20 , and the lower end of the impurity guide groove 3 extends in a direction away from the magnet 22 .

[0070] The motor 25 drives the running drum 20 to rotate through the engagement of the gear 26 and the ring gear 24. The engagement portion is located inside the running drum 20, which reduces the influence of dust and extends the service life of the transmission components. At the same time, the material from the feed chute 2 falls directly above the magnet 22. Under the interception and rotation of the running drum 20, the magnetic force of the magnet 22 passes through the running drum 20 and adsorbs the magnetic impurities on the running drum 20. When the lower side of the running drum 20 rotates away from the magnet 22, the magnetic impurities are thrown toward the feed chute 2 under the action of centrifugal force, thereby realizing the separation of magnetic impurities with good reliability.

[0071] Furthermore, a connecting plate 27 is provided on the bracket 21 . The connecting plate 27 extends from both ends of the running drum 20 into the running drum 20 and is connected to the magnet 22 via bolts.

[0072] It is convenient to fix the magnet 22 and easy to assemble and disassemble.

[0073] Although embodiments of the present invention have been shown and described above, the above embodiments are merely exemplary and are not to be construed as limiting the present invention. Changes, modifications, substitutions, and variations made to the above embodiments by those skilled in the art within the scope of information available through public channels and in combination with the technical inspiration provided by the present application documents are still within the scope of protection of the present application.

Claims

1. A dust removal type barite particle screening device, characterized in that: include: A box body (1), wherein a feed chute (2) is provided on the top of the box body (1); A dust suction and separation device, the inlet end of which extends into the box body (1), and the dust suction and separation device is used to suck dust-containing gas from the box body (1) and separate it; The box (1) is also provided with: A magnetic separation component, the feed chute (2) is directly opposite to the magnetic separation component, and the magnetic separation component is used to separate magnetic impurities and pure materials from the materials from the feed chute (2); An impurity guide groove (3) is located below the magnetic separation component, and the upper end of the impurity guide groove (3) is connected to the magnetic impurity outlet of the magnetic separation component; The screening machine (6) is located below the magnetic separation component, and the inlet of the screening machine (6) is connected to the pure material outlet of the magnetic separation component.

2. The dust removal type barite particle screening device according to claim 1, characterized in that: The box (1) is also provided with: A first pure product guide groove (4) is located below the magnetic separation component, the upper end of the first pure product guide groove (4) is connected to the pure product material outlet of the magnetic separation component, and the lower end of the first pure product guide groove (4) faces the first side wall of the box body (1); The upper end of the second pure product guide groove (5) contacts the first side wall of the box body (1) and is connected to the lower end of the first pure product guide groove (4). The lower end of the second pure product guide groove (5) is connected to the inlet of the screening machine (6).

3. The dust removal type barite particle screening device according to claim 2, characterized in that: The second pure product guide groove (5) is arc-shaped with the concave arc surface facing upwards.

4. The dust removal type barite particle screening device according to claim 1, characterized in that: The dust suction and separation equipment comprises an exhaust fan (7), an air suction hood (8) and a dust removal box (10); the outlet of the exhaust fan (7) is connected to the dust removal box (10) via a pipeline, and the inlet of the exhaust fan (7) is connected to the air suction hood (8) via a pipeline.

5. The dust removal type barite particle screening device according to claim 4, characterized in that: A cyclone separator (9) is also provided on the inlet pipeline of the exhaust fan (7), the air flow outlet of the cyclone separator (9) is connected to the inlet of the exhaust fan (7), and the air flow inlet of the cyclone separator (9) is connected to the suction hood (8).

6. The dust removal type barite particle screening device according to claim 4, characterized in that: The dust removal box (10) is provided with a filter plate (11), a filter cage (12) and an air inlet pipe (13); the filter plate (11) is located in the middle of the box body (1); the filter cage (12) is arranged on the filter plate (11); one end of the air inlet pipe (13) extends from the bottom of the filter cage (12) into the filter cage (12); the other end of the air inlet pipe (13) is connected to the outlet of the exhaust fan (7); a mesh sleeve (14) is sleeved on the outer wall of the filter cage (12); a water distribution cover (15) is provided just above the filter cage (12); a ring-shaped water distribution pipe (16) is provided on the lower side of the water distribution cover (15); a plurality of nozzles are distributed on the inner side of the water distribution pipe (16); the nozzles are arranged obliquely downward toward the mesh sleeve (14); and an air outlet is provided at the top of the dust removal box (10).

7. The dust removal type barite particle screening device according to claim 6, characterized in that: The water distribution cover (15) is provided with a water inlet pipe (17), one end of the water inlet pipe (17) is connected to the water distribution pipe (16), and the other end of the water inlet pipe (17) extends out of the box body (1).

8. The dust removal type barite particle screening device according to claim 6, characterized in that: The filter cage (12) is spherical, and an annular boss (18) is provided at the bottom of the filter cage (12). A through groove matched with the annular boss (18) is provided in the middle of the filter plate (11), and the annular boss (18) is inserted downward into the through groove in the middle of the filter plate (11). A support block (19) is also fixed on the inner wall of the dust removal box (10), and the edge of the filter plate (11) overlaps the support block (19).

9. The dust removal type barite particle screening device according to claim 1, characterized in that: The magnetic separation assembly comprises a running drum (20), wherein brackets (21) are provided at both ends of the running drum (20), the brackets (21) and the running drum (20) are connected via bearings (23), a magnet (22) is provided inside the running drum (20), the magnet (22) is attached to a side wall of the running drum (20), and the brackets (21) and the magnet (22) are fixedly connected; a gear ring (24) is also provided on the inner wall of one end of the drum, a motor (25) is also provided on the bracket (21), a gear (26) is provided on the output shaft of the motor (25), and the gear (26) is meshed with the gear ring (24); the outlet of the feeding chute (2) is located directly above the magnet (22) and obliquely downwardly facing the running drum (20).

10. The dust removal type barite particle screening device according to claim 9, characterized in that: The bracket (21) is also provided with a connecting plate (27), which extends from both ends of the running roller (20) into the running roller (20) and is connected to the magnet (22) by bolts.

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