Control method of wet dust collector suitable for aluminum pot production line

Abstract

The invention discloses a control method of a wet dust collector suitable for an aluminum can production line, which comprises the following steps: starting the wet dust collector, operating a power mechanism, enabling a liquid drop separation barrel to generate negative pressure, and sucking aluminum powder particles generated by polishing into the liquid drop separation barrel; water enters the water supplementing pipe and is sprayed out in a dense mist shape, a uniform water mist curtain is formed to wet aluminum powder particles, most of the aluminum powder particles are mixed with the water and flow back into the deposition bottom barrel, and the rest of tiny aluminum powder particles enter the liquid drop separation barrel; the aluminum powder particles and the water rotate along the inner wall of the liquid drop separation barrel, so that the aluminum powder particles and the water are fully mixed and flow back into the deposition bottom barrel; and discharging the mixed liquid with higher density at the bottom of the deposition bottom barrel into the deposition tank. The aluminum powder particles generated in the surface polishing process of the aluminum pot are collected in a centralized mode, water resources are recycled, the water resources are effectively saved, and the sustainable development requirement is met.

Description

Technical Field

[0001] The invention relates to the technical field of dehumidifiers, and in particular to a control method for a wet dust collector suitable for an aluminum can production line. Background Art

[0002] A large amount of metal dust is produced during the work process. The dust particles are large and the concentration is high. It is difficult for most companies to completely eliminate dust and dust pollution. Dust not only causes environmental pollution, but also endangers the health of on-site operators. With the deepening of environmental governance in my country, the control of dust generated in industrial production has become a top priority. When aluminum powder particles reach a certain concentration, there is a risk of explosion. There are also requirements for the filtration efficiency of aluminum powder particles and the size of the equipment. Conventional dust treatment equipment is difficult to meet the requirements of the production line.

[0003] Traditional wet dust removal equipment basically has the following disadvantages: (1) The motors are installed outside the equipment, which causes the centrifugal fan blades to be too close to the exhaust port. A large amount of dust is discharged before it has time to be fully mixed and settled. Some solutions are to extend the motor output shaft and place the centrifugal fan blades at a farther position, which will increase the motor load and also increase the vibration of the motor and centrifugal fan blades. (2) The mixed sediments tend to clump together after accumulating at the bottom, causing the drainage channel to be blocked, thus affecting the normal use of the equipment; (3) During the intense rotation and collision of the mixed liquid, a large amount of foam will inevitably be generated. Due to the low density of the foam, it will float on the upper layer of the sedimentation barrel. This position happens to be the detection area of ​​the floating ball of the liquid level gauge, which seriously affects the correct liquid level judgment of the equipment and leads to poor dust collection effect. (4) The liquid level gauge in the water level control box of conventional vacuum cleaner equipment has only two induction switches, and the liquid level height control is not accurate, causing the equipment to often be at the highest or lowest water level when working; (5) When the equipment is shut down urgently, there is still a large amount of mixed liquid on the inner wall of the equipment, which will all flow back to the bottom. When the liquid level exceeds the limit position of the water level control box, the mixed liquid will overflow the equipment, seriously polluting the working environment; (6) When the centrifugal fan blades rotate at high speed, they vibrate greatly, resulting in poor stability of the equipment operation and affecting the dust removal effect; (7) The inner wall of the equipment is severely corroded due to long-term friction with the mixed liquid, which greatly shortens the service life of the equipment; (8) Conventional wet dust collectors consume a lot of water, and the fused water is difficult to handle, posing an environmental hazard.

[0004] Therefore, it is necessary to design a wet dust collector specifically for the single-piece aluminum can polishing machine according to the special requirements of the site. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a control method for a wet dust collector applicable to an aluminum can production line, which is used to centrally collect aluminum powder particles generated during the surface polishing process of aluminum cans.

[0006] To solve the above technical problem, the present invention provides a control method for a wet dust collector applicable to an aluminum can production line. The wet dust collector used includes a sedimentation bottom barrel, a droplet separation cylinder and a power mechanism. The centrifugal fan blade of the power mechanism rotates to generate a negative pressure in the droplet separation cylinder, sucking the aluminum powder particles into the interior of the droplet separation cylinder. The water supply pipe of the droplet separation cylinder intakes water, wets the aluminum powder particles and then flows them into the sedimentation bottom barrel; The control method using the wet dust collector includes the following steps: Step 1: Turn on the wet dust collector, the power mechanism operates, the power mechanism drives the centrifugal fan blade to rotate, generating a negative pressure in the droplet separation cylinder and connecting it to the polishing brush of the aluminum can polishing. The aluminum powder particles generated by polishing are sucked into the interior of the droplet separation cylinder; Step 2: The water supply pipe intakes water and sprays it out in a dense mist to form a uniform water mist curtain to wet the aluminum powder particles, mixing most of the aluminum powder particles with water and flowing them back into the sedimentation bottom barrel. The remaining tiny aluminum powder particles enter the interior of the droplet separation cylinder; Step 3: The aluminum powder particles and water rotate along the inner wall of the droplet separation cylinder, enabling the aluminum powder particles and water to be fully mixed. When a certain amount of aluminum powder particles are mixed in the water, a mixed liquid is formed and flows back into the sedimentation bottom barrel; Step 4: Discharge the mixed liquid with a higher density at the bottom of the sedimentation bottom barrel into the sedimentation pond.

[0007] Further, the sedimentation bottom barrel is arranged below the droplet separation cylinder, and the power mechanism is arranged inside the droplet separation cylinder; The droplet separation cylinder further includes a fixed support, an aluminum powder particle inlet pipe, a separation tank cylinder, a motor air inlet and a diversion funnel; the fixed support is arranged at the bottom of the separation tank cylinder, the aluminum powder particle inlet pipe, the motor air inlet and the water supply pipe are all arranged on the cylinder wall of the separation tank cylinder, and the diversion funnel is arranged inside the separation tank cylinder.

[0008] Furthermore, the sedimentation bottom barrel includes a bottom barrel, a partition board, a liquid level gauge, a mounting seat, a water level control box, an overflow port, a foam reflux device, and a drain port; the bottom barrel is connected to the water level control box through a long groove on the barrel wall, the partition board is fixed in the bottom barrel through a plurality of clamping blocks, the liquid level gauge is arranged on the water level control box through the mounting seat, the overflow port is arranged at the upper part of the water level control box, the drain port is arranged at the lower part of the bottom barrel, and pulleys are also arranged at the bottom of the bottom barrel.

[0009] Furthermore, the foam reflux device includes a foam recovery adjusting plate, a foam recovery square pipe, a foam recovery partition board, and screws; the foam recovery adjusting plate is adjustably arranged on the water level control box through the screws, and the foam recovery square pipe is fixedly arranged at the upper part of the bottom barrel and connected to the foam recovery partition board.

[0010] Furthermore, a plurality of position induction switches are arranged on the liquid level gauge, and a floating ball is arranged at the lower end of the liquid level gauge.

[0011] Furthermore, a fixing plate is arranged at the top of the separation tank cylinder, and the cylinder wall of the separation tank cylinder also has a splash-proof partition board and an observation window; the diversion funnel includes a circumferential mounting ring, a conical diversion plate, and a cylindrical diversion pipe, the circumferential mounting ring is connected to the cylindrical diversion pipe, and the conical diversion plate is arranged on the circumferential side of the top of the circumferential mounting ring.

[0012] Furthermore, the power mechanism further includes an exhaust fan seat, a motor, a pipe connection sleeve, and a fan fixing plate; the motor is arranged in the exhaust fan seat, the pipe connection sleeve is arranged at the air inlet of the motor, the fan fixing plate is arranged at the bottom of the exhaust fan seat, the centrifugal fan blade is electrically connected to the motor, and a plurality of flow disturbance slits are arranged on the centrifugal fan blade, and the flow disturbance slits are of an arc structure.

[0013] Furthermore, the exhaust fan seat includes an exhaust duct, a guide duct, a base mounting plate, a plurality of support plates, a sealing top plate, a sealing cylinder, and a motor air duct; an exhaust duct fixing plate is arranged at the top of the exhaust fan seat, one end of the exhaust duct is fixedly connected to the inner wall of the guide duct, and the other end is fixedly connected to the sealing top plate, the guide duct is fixedly connected to the exhaust duct fixing plate, the base mounting plate is fixedly arranged on the outer wall circumference of the middle part of the guide duct, the upper ends of the support plates are fixedly connected to the inner wall of the guide duct, and the lower ends are fixedly connected to the top of the sealing top plate, the sealing cylinder is fixedly connected below the sealing top plate, and the motor air duct is fixedly connected to the outer wall of the sealing cylinder and connected to the air inlet of the motor through the pipe connection sleeve.

[0014] Implementing the present invention has the following beneficial effects: (1) The motor is completely placed inside the droplet separation cylinder. The motor is sealed around the motor, leaving only three holes leading to the outside. The exhaust duct not only serves as the motor exhaust and heat dissipation function, but also serves as the wire pipeline. The two motor ducts serve as air intake to ensure air circulation and heat transfer of the motor. The built-in design of the motor can shorten the length of the motor shaft. The shaft end is connected to the centrifugal fan blade, which effectively reduces the vibration generated during high-speed centrifugal operation. (2) A partition is installed inside the sedimentation bottom barrel. The partition is welded by three fan-shaped steel plates and a built-in circular ring. The outer circumference of the steel plate is close to the bottom surface, and there is a bevel in the middle. When aluminum powder particles agglomerate under the sedimentation bottom barrel, the water at the bottom also rotates continuously with the centrifugal fan blades, and the agglomerates have a greater inertia and move closer to the outer circle. At this time, they will frequently collide with the outer circumference of the steel plate on the partition until the aluminum powder particles are broken up and then come to the sedimentation pool through the drain port. (3) When it is found that there is a lot of foam on the liquid surface of the water level control box and it affects the detection value of the floating ball, you can loosen the butterfly screw, adjust the bottom surface of the foam recovery adjustment plate to about 30 mm below the foam, and then tighten the butterfly screw to fix the foam recovery adjustment plate; the foam recovery square tube is welded to the barrel wall and connected to the foam recovery partition. When the bottom surface of the foam recovery adjustment plate is adjusted to below the foam, because the airflow inside the sedimentation bottom barrel rotates at a high speed, the mixed liquid and foam on the upper layer of the water level control box will be continuously attracted into the interior due to the pressure difference, thereby ensuring that the floating ball below the liquid level gauge can accurately reflect the water level at this time in real time; (4) The liquid level gauge is fixed with four position sensing switches from top to bottom, and the position sensing switches can be adjusted according to the production situation at that time; a permanent magnet is connected to the upper end of the guide rod inside the liquid level gauge, and the position of the permanent magnet is always maintained between the second position sensing switch and the third position sensing switch as the optimal water level state. When the permanent magnet is lower than the third position sensing switch, it means that the internal water volume is insufficient, and the water supply pipe can be adjusted to increase the water inlet. Otherwise, the internal water level is too high, and the water supply of the water supply pipe needs to be appropriately reduced; when the permanent magnet is at the first position sensing switch or the fourth position sensing switch and has not returned to the optimal water level state after the set time, it is necessary to check; (5) The inlet of the water pump is connected to the overflow port, and the outlet of the water pump is connected to the sedimentation tank. When the wet dust collector is shut down, the internal mixed liquid will all flow back to the sedimentation bottom bucket due to gravity, causing the water level to rise suddenly and rapidly. At this time, the water pump at the overflow port is turned on to pump all the mixed liquid exceeding the overflow port into the sedimentation tank to ensure that the mixed liquid will not overflow outside the wet dust collector. When the liquid level returns to normal, the water pump stops running. (6) The two motor air ducts on the exhaust base are respectively connected to the two motor air inlets in the droplet separation cylinder through pipeline connectors. The pipeline connectors are made of high-quality polyurethane materials, which not only play a role in connecting the motor and the outside to form air convection, but also can effectively reduce vibration when the centrifugal fan blades rotate at high speed, better ensuring the long-term and stable operation of the wet dust collector; (7) A ceramic filling coating is added to the inner wall of the droplet separation cylinder. When the wet dust collector is operating, the inner wall and the mixed liquid are constantly rubbed. It can not only effectively protect the inner surface, but also because the coating becomes flat and smooth after curing, making the mixed liquid on the inner wall easier to flow back downward without wall hanging phenomenon; (8) After the mixed liquid in the sedimentation bottom barrel is discharged and passes through three sedimentation ponds in sequence, during the aluminum can polishing process, except for the generation of aluminum powder particles, there are no other harmful gases. Therefore, after most of the aluminum powder particles in the mixed liquid are deposited, the remaining liquid can be connected to the water replenishing pipe for water replenishment, ensuring the recycling of water resources, effectively saving water resources, and being conducive to the requirements of sustainable development. Brief Description of the Drawings

[0015] Figure 1 is the process schematic diagram of the embodiment of the present invention; Figure 2 is the overall structural schematic diagram of the embodiment of the present invention; Figure 3 is the internal structural schematic diagram of the sedimentation bottom barrel of the embodiment of the present invention; Figure 4 is the cross-sectional view of the sedimentation bottom barrel of the embodiment of the present invention; Figure 5 is the structural schematic diagram of the partition of the embodiment of the present invention; Figure 6 is the structural schematic diagram of the droplet separation cylinder of the embodiment of the present invention; Figure 7 is the cross-sectional view of the droplet separation cylinder of the embodiment of the present invention; Figure 8 is the structural schematic diagram of the diversion funnel of the embodiment of the present invention; Figure 9 is the structural schematic diagram of the power mechanism of the embodiment of the present invention; Figure 10 is the cross-sectional view of the power mechanism of the embodiment of the present invention. Detailed Embodiments

[0016] To make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0017] As Figure 1-10As shown in the figure, a control method for a wet dust collector applicable to an aluminum can production line. When a single aluminum can needs to undergo the process of can body polishing, the wet dust collector is turned on in advance to make the motor 3B operate. The motor 3B drives the centrifugal fan blade 3E installed on the motor shaft to rotate at high speed, causing the droplet separation cylinder 2 to generate a centrifugal air flow. The inlet of the air flow is connected to the polishing brush for aluminum can polishing, and the aluminum powder particles generated by polishing are continuously attracted into the interior of the droplet separation cylinder 2. At the same time, the water supply pipe 2H supplies water, and the water is sprayed out in a dense mist form through the rapid rise of the air flow, thereby forming a uniform water mist curtain to moisten the aluminum powder particles. Most of the aluminum powder particles are mixed with water and then return to the sedimentation bottom barrel 1 under the action of centrifugal force and weight. The remaining tiny aluminum powder particles will come to the droplet separation cylinder 2 through the pipeline of the diversion funnel 2K along with the air flow. Since the centrifugal fan blade 3E is here, the centrifugal wind force in this area reaches the maximum value, and the tiny aluminum powder particles and the misty water vapor are carried up together. At this time, both the aluminum powder particles and the water vapor will rotate along the inner wall of the separation tank cylinder 2D under the action of the super strong centrifugal force, promoting the full mixing of the aluminum powder particles and the water vapor. When a certain amount of aluminum powder is mixed in the water vapor, due to its own gravity, the mixed liquid will flow back to the sedimentation bottom barrel 1 through the conical diversion plate 2K2 and the cylindrical diversion pipe 2K3 on the diversion funnel 2K. After the gas containing aluminum powder particles is fully mixed in the droplet separation cylinder 2, the remaining gas will continue to rise and enter the final dust treatment process. A drain port 1H is installed below the sedimentation bottom barrel 1, which will discharge the mixed liquid with a higher density at the bottom to the sedimentation pond.

[0018] As Figure 2-10 shown in the figure, a wet dust collector applicable to an aluminum can production line includes a sedimentation bottom barrel 1, a droplet separation cylinder 2, and a power mechanism 3. The sedimentation bottom barrel 1 is arranged below the droplet separation cylinder 2, and the power mechanism 3 is arranged inside the droplet separation cylinder 2. The centrifugal fan blade 3E of the power mechanism 3 rotates, causing the droplet separation cylinder 2 to generate a negative pressure, sucking the aluminum powder particles into the interior of the droplet separation cylinder 2. The water supply pipe 2H of the droplet separation cylinder 2 supplies water, moistening the aluminum powder particles and flowing back to the sedimentation bottom barrel 1. After the mixed liquid in the sedimentation bottom barrel 1 is discharged and passes through three sedimentation ponds in sequence, during the aluminum can polishing process, except for the generation of aluminum powder particles, there are no other harmful gases. Therefore, after most of the aluminum powder particles in the mixed liquid are deposited, the remaining liquid can be connected to the water supply pipe 2H for water replenishment, ensuring the reuse of water resources, effectively saving water resources, and being conducive to the requirements of sustainable development.

[0019] As Figure 3-5As shown in the figure, the sedimentation bottom barrel 1 includes a bottom barrel 1A, a partition plate 1B, a liquid level gauge 1C, a mounting seat 1D, a water level control box 1E, an overflow port 1F, a foam reflux device 1G, and a drain port 1H; the bottom barrel 1A is connected to the water level control box 1E through a long slot 1A1 on the barrel wall, and the partition plate 1B is fixed in the bottom barrel 1A through a number of clamping blocks 1A2. A partition plate 1B is installed inside the sedimentation bottom barrel 1, and the partition plate 1B is welded by three fan-shaped steel plates and an internal ring; the outer circumference of the steel plate is close to the bottom surface, and an inclined opening is processed in the middle. When aluminum powder particles agglomerate at the bottom of the sedimentation bottom barrel, since the accumulated water at the bottom also continuously rotates with the centrifugal fan blades, and the inertia of the agglomeration is relatively large, it will move closer to the outer ring, and at this time, it will frequently collide with the outer circumference of the steel plate on the partition plate 1B until the aluminum powder particle agglomeration is broken up, and then it will come to the sedimentation tank through the drain port 1H. The liquid level gauge 1C is arranged on the water level control box 1E through the mounting seat 1D, the overflow port 1F is arranged at the upper part of the water level control box 1E, the inlet of the water pump is connected to the overflow port 1F, and the outlet of the water pump is connected to the sedimentation tank; when the wet dust collector stops running, the internal mixed liquid all flows back into the sedimentation bottom barrel 1 due to the action of gravity, resulting in a sudden rapid rise in the water level. At this time, the water pump at the position of the overflow port 1F is turned on to pump all the mixed liquid exceeding the overflow port into the sedimentation tank, ensuring that the mixed liquid will not overflow to the outside of the wet dust collector. When the liquid level returns to the normal level, the water pump stops running. The drain port 1H is arranged at the lower part of the bottom barrel 1A, and a pulley 1K is also arranged at the bottom of the bottom barrel 1A. The foam reflux device 1G includes a foam recovery adjusting plate 1G1, a foam recovery square pipe 1G2, a foam recovery partition plate 1G3, and a screw 1G4. The foam recovery adjusting plate 1G1 is adjustably arranged on the water level control box 1E through the screw 1G4, and the foam recovery square pipe 1G2 is fixedly arranged at the upper part of the bottom barrel 1A and is connected to the foam recovery partition plate 1G3. When it is found that the detection value of the floating ball 1C5 is affected by a large amount of foam on the liquid level of the water level control box 1E, the butterfly screw 1G4 can be loosened, and the bottom surface of the foam recovery adjusting plate 1G1 can be adjusted to a position about 30 millimeters below the foam, and then the butterfly screw 1G4 can be tightened to fix the foam recovery adjusting plate 1G1; the foam recovery square pipe 1G2 is welded on the barrel wall and communicates with the foam recovery partition plate 1G3. When the bottom surface of the foam recovery adjusting plate 1G1 is adjusted to below the foam, because the internal air flow in the sedimentation bottom barrel 1 rotates at a high speed, the mixed liquid and foam on the upper layer of the water level control box 1E will be continuously attracted into the inside due to the pressure difference, so as to ensure that the floating ball 1C5 below the liquid level gauge 1C can accurately reflect the water level at this time in real time.

[0020] As Figure 4As shown, there are 4 position induction switches on the liquid level gauge 1C, namely the first position induction switch 1C1, the second position induction switch 1C2, the third position induction switch 1C3, and the fourth position induction switch 1C4. A floating ball 1C5 is arranged at the lower end of the liquid level gauge 1C. Four position induction switches are fixedly arranged on the liquid level gauge from top to bottom, and the position induction switches can all be adjusted according to the production situation of the time; the upper end of the guide rod inside the liquid level gauge is connected with a permanent magnet, and the position of the permanent magnet always remains between the second position induction switch 1C2 and the third position induction switch 1C3 as the optimal water level state. When the permanent magnet is lower than the third position induction switch 1C3, it indicates that the internal water volume is insufficient, and the water supply pipe 2H can be adjusted to increase the water inflow. On the contrary, the internal water level is too high, and the water inflow of the water supply pipe 2H needs to be appropriately reduced; when the permanent magnet is at the first position induction switch 1C1 or the fourth position induction switch 1C4 and does not return to the optimal water level state after exceeding the set time, an inspection is required.

[0021] As Figure 6-8 shown, the droplet separation cylinder 2 further includes a fixed support 2A, an aluminum powder particle inlet pipe 2B, a splash-proof partition 2C, a separation tank cylinder 2D, a motor air inlet 2F, and a diversion funnel 2K; the fixed support 2A is arranged at the bottom of the separation tank cylinder 2D, the aluminum powder particle inlet pipe 2B, the motor air inlet 2F, and the water supply pipe 2H are all arranged on the cylinder wall of the separation tank cylinder 2D. A fixed plate 2E is arranged at the top of the separation tank cylinder 2D, and the cylinder wall of the separation tank cylinder 2D also has an observation window 2G. The diversion funnel 2K is arranged inside the separation tank cylinder 2D. The diversion funnel 2K includes a circumferential installation ring 2K1, a conical diversion plate 2K2, and a cylindrical diversion pipe 2K3. The circumferential installation ring 2K1 is connected to the cylindrical diversion pipe 2K3, and the conical diversion plate 2K2 is arranged on the circumferential side of the top of the circumferential installation ring 2K1. Preferably, a ceramic filling coating is added to the inner wall of the droplet separation cylinder 2. When the wet dust collector is running, the inner wall always rubs against the mixed liquid, which can not only effectively protect the inner surface, but also because the coating becomes flat and smooth after curing, it can make the mixed liquid on the inner wall flow down more easily without the phenomenon of wall hanging. As Figure 9 and 10As shown in the figure, the power mechanism 3 further includes an exhaust fan base 3A, a motor 3B, a pipe connection sleeve 3C, and a fan fixing plate 3D; the motor 3B is disposed inside the exhaust fan base 3A, the pipe connection sleeve 3C is disposed on the motor air inlet 2F, and two motor air ducts 3A8 on the exhaust air base 3A are respectively connected to the two motor air inlets 2F inside the droplet separation cylinder 2 through the pipe connection sleeve 3C. Preferably, the pipe connection sleeve 3C is made of high-quality polyurethane material, which not only plays a role in connecting the motor 3B and the external to form air convection, but also can effectively reduce vibration when the centrifugal fan blade 3E rotates at high speed, better ensuring the long-term and stable operation of the wet dust collector. The fan fixing plate 3D is disposed at the bottom of the exhaust fan base 3A, the centrifugal fan blade 3E is electrically connected to the motor 3B, and the centrifugal fan blade 3E has a number of spoiler slits 3E1, and the spoiler slits 3E1 are arc-shaped structures. Under the disturbing and shearing actions of the spoiler slits 3E1, water and aluminum powder particles are further broken and atomized and mixed. The exhaust fan base 3A includes an exhaust duct 3A2, a guide duct 3A3, a base mounting plate 3A4, a number of support plates 3A5, a sealing top plate 3A6, a sealing cylinder 3A7, and a motor air duct 3A8; an exhaust duct fixing plate 3A1 is disposed at the top of the exhaust fan base 3A, one end of the exhaust duct 3A2 is fixedly connected to the inner wall of the guide duct 3A3, and the other end is fixedly connected to the sealing top plate 3A6. The guide duct 3A3 is fixedly connected to the exhaust duct fixing plate 3A1. The base mounting plate 3A4 is fixedly disposed on the outer peripheral side of the middle part of the guide duct 3A3. The upper end of the support plate 3A5 is fixedly connected to the inner wall of the guide duct 3A3, and the lower end is fixedly connected to the top of the sealing top plate 3A6. The sealing cylinder 3A7 is fixedly connected below the sealing top plate 3A6. The motor air duct 3A8 is fixedly connected to the outer wall of the sealing cylinder 3A7 and is connected to the motor air inlet 2F through the pipe connection sleeve 3C. The motor 3B is completely placed inside the droplet separation cylinder 2, and the periphery of the motor 3B is a sealed structure, leaving only three holes leading to the outside; among them, the exhaust duct 3A2 not only plays a role in exhausting and dissipating heat of the motor, but also plays a role in the wire pipeline. The two motor air ducts 3A8 play a role in air intake to ensure the air circulation and heat transfer of the motor; the built-in design of the motor 3B can shorten the length of the motor shaft, and the shaft end is connected to the centrifugal fan blade 3E, effectively reducing the vibration generated during the high-speed rotation of the centrifugal fan.

[0022] The above-disclosed is only a preferred embodiment of the present invention, and of course, it cannot be used to limit the scope of the rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A control method for a wet dust collector applicable to an aluminum can production line, characterized in that, The wet dust collector used includes a sedimentation bottom barrel (1), a droplet separation barrel (2) and a power mechanism (3). The centrifugal fan blade (3E) of the power mechanism (3) rotates, causing a negative pressure in the droplet separation barrel (2) to suck aluminum powder particles into the interior of the droplet separation barrel (2). Water enters through the water supply pipe (2H) of the droplet separation barrel (2), wets the aluminum powder particles and then flows into the sedimentation bottom barrel (1). The control method using the wet dust collector includes the following steps: Step 1: Turn on the wet dust collector, the power mechanism (3) operates, and the power mechanism (3) drives the centrifugal fan blade (3E) to rotate, causing a negative pressure in the droplet separation barrel (2) and connecting it to the polishing brush for aluminum can polishing. The aluminum powder particles generated by polishing are sucked into the interior of the droplet separation barrel (2). Step 2: Water enters through the water supply pipe (2H) and is sprayed out in a dense mist to form a uniform water mist curtain to wet the aluminum powder particles. Most of the aluminum powder particles are mixed with water and flow back into the sedimentation bottom barrel (1), and the remaining tiny aluminum powder particles enter the interior of the droplet separation barrel (2). Step 3: The aluminum powder particles and water rotate along the inner wall of the droplet separation barrel (2) to fully mix the aluminum powder particles and water. When a certain amount of aluminum powder particles are mixed in the water, a mixed liquid is formed and flows back into the sedimentation bottom barrel (1). Step 4: Discharge the mixed liquid with a higher density at the bottom of the sedimentation bottom barrel (1) into the sedimentation pond.

2. The control method of the wet dust collector applicable to the aluminum can production line according to claim 1, characterized in that, The sedimentation bottom barrel (1) is arranged below the droplet separation barrel (2), and the power mechanism (3) is arranged inside the droplet separation barrel (2). The droplet separation barrel (2) further includes a fixed support (2A), an aluminum powder particle inlet pipe (2B), a separation tank barrel (2D), a motor air inlet (2F) and a diversion funnel (2K). The fixed support (2A) is arranged at the bottom of the separation tank barrel (2D). The aluminum powder particle inlet pipe (2B), the motor air inlet (2F) and the water supply pipe (2H) are all arranged on the barrel wall of the separation tank barrel (2D), and the diversion funnel (2K) is arranged inside the separation tank barrel (2D).

3. The control method of the wet dust collector applicable to the aluminum can production line according to claim 2, characterized in that, The sedimentation bottom barrel (1) includes a bottom barrel (1A), a partition (1B), a liquid level gauge (1C), a mounting seat (1D), a water level control box (1E), an overflow port (1F), a foam return device (1G) and a drain port (1H). The bottom barrel (1A) is connected to the water level control box (1E) through a long groove (1A1) on the barrel wall. The partition (1B) is fixed inside the bottom barrel (1A) through a number of clamping blocks (1A2). The liquid level gauge (1C) is arranged on the water level control box (1E) through the mounting seat (1D). The overflow port (1F) is arranged at the upper part of the water level control box (1E). The drain port (1H) is arranged at the lower part of the bottom barrel (1A). A pulley (1K) is also arranged at the bottom of the bottom barrel (1A).

4. The control method of the wet dust collector applicable to the aluminum can production line according to claim 3, characterized in that, The foam reflux device (1G) includes a foam recovery adjusting plate (1G1), a foam recovery square pipe (1G2), a foam recovery partition plate (1G3), and screws (1G4). The foam recovery adjusting plate (1G1) is adjustably arranged on the water level control box (1E) through the screws (1G4). The foam recovery square pipe (1G2) is fixedly arranged on the upper part of the bottom barrel (1A) and is connected to the foam recovery partition plate (1G3).

5. The control method of the wet dust collector applicable to the aluminum can production line according to claim 3, characterized in that, A number of position induction switches are arranged on the liquid level gauge (1C), and a floating ball (1C5) is arranged at the lower end of the liquid level gauge (1C).

6. The control method of the wet dust collector applicable to the aluminum can production line according to claim 2, characterized in that, A fixing plate (2E) is arranged at the top of the separation tank cylinder (2D). The cylinder wall of the separation tank cylinder (2D) also has a splash-proof partition plate (2C) and an observation window (2G). The diversion funnel (2K) includes a circumferential installation ring (2K1), a conical diversion plate (2K2), and a cylindrical diversion pipe (2K3). The circumferential installation ring (2K1) is connected to the cylindrical diversion pipe (2K3), and the conical diversion plate (2K2) is arranged on the circumferential side of the top of the circumferential installation ring (2K1).

7. The control method of the wet dust collector applicable to the aluminum can production line according to claim 6, characterized in that, The power mechanism (3) further includes an exhaust fan base (3A), a motor (3B), a pipe connection sleeve (3C), and a fan fixing plate (3D). The motor (3B) is arranged in the exhaust fan base (3A). The pipe connection sleeve (3C) is arranged on the motor air inlet (2F). The fan fixing plate (3D) is arranged at the bottom of the exhaust fan base (3A). The centrifugal fan blade (3E) is electrically connected to the motor (3B). The centrifugal fan blade (3E) has a number of turbulent flow slits (3E1), and the turbulent flow slits (3E1) are arc-shaped structures.

8. The control method of the wet dust collector applicable to the aluminum can production line according to claim 7, characterized in that, The exhaust fan base (3A) includes an exhaust duct (3A2), a guide duct (3A3), a base mounting plate (3A4), a number of support plates (3A5), a sealing top plate (3A6), a sealing cylinder (3A7), and a motor air duct (3A8). An exhaust duct fixing plate (3A1) is arranged at the top of the exhaust fan base (3A). One end of the exhaust duct (3A2) is fixedly connected to the inner wall of the guide duct (3A3), and the other end is fixedly connected to the sealing top plate (3A6). The guide duct (3A3) is fixedly connected to the exhaust duct fixing plate (3A1). The base mounting plate (3A4) is fixedly arranged on the outer wall circumference of the middle part of the guide duct (3A3). The upper end of the support plate (3A5) is fixedly connected to the inner wall of the guide duct (3A3), and the lower end is fixedly connected to the top of the sealing top plate (3A6). The sealing cylinder (3A7) is fixedly connected below the sealing top plate (3A6). The motor air duct (3A8) is fixedly connected to the outer wall of the sealing cylinder (3A7) and is connected to the motor air inlet (2F) through the pipe connection sleeve (3C).

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