A control method for a wet dust collector applicable to an aluminum can production line

Abstract

The present invention discloses a control method for a wet dust collector suitable for an aluminum can production line, comprising: starting the wet dust collector, operating a power mechanism to generate negative pressure in a droplet separation drum, and drawing aluminum powder particles generated during polishing into the droplet separation drum; introducing water into a water supply pipe and spraying the water out in a dense mist to form a uniform water mist curtain that moistens the aluminum powder particles, mixing most of the aluminum powder particles with water and returning them to a sedimentation bottom drum, while the remaining tiny aluminum powder particles enter the droplet separation drum; rotating the aluminum powder particles and water along the inner wall of the droplet separation drum, fully mixing the aluminum powder particles and returning them to the sedimentation bottom drum; and discharging the denser mixed liquid at the bottom of the sedimentation bottom drum into a sedimentation tank. The present invention centrally collects aluminum powder particles generated during the surface polishing process of aluminum cans, reuses water resources, effectively conserves water resources, and contributes to sustainable development requirements.

Description

Technical Field

[0001] The present 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] The production process generates large amounts of metal dust, often large particles with high concentrations. Eliminating dust and dust pollution is a challenging issue for most companies, challenging to completely address. Dust not only pollutes the environment but also harms the health of on-site workers. As my country deepens its commitment to environmental governance, dust control during industrial production has become a top priority. Aluminum powder particles pose an explosion risk at certain concentrations, and conventional dust treatment equipment struggles to meet production line requirements, such as filtration efficiency and equipment dimensions.

[0003] Traditional wet dust removal equipment basically has the following disadvantages:

[0004] (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 fully mix and settle. Some solutions are to extend the motor output shaft and place the centrifugal fan blades farther away. This will increase the load on the motor and also increase the vibration of the motor and centrifugal fan blades.

[0005] (2) The mixed sediments tend to clump together after accumulating at the bottom, causing blockage of the drainage channel and affecting the normal use of the equipment;

[0006] (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 is exactly 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.

[0007] (4) The liquid level gauge in the water level control box of conventional vacuum cleaners only has two sensor switches, and the liquid level height control is not accurate, causing the equipment to often be at the highest or lowest water level during operation;

[0008] (5) When the equipment is shut down urgently, a large amount of mixed liquid on the inner wall of the equipment will 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;

[0009] (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;

[0010] (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;

[0011] (8) Conventional wet dust collectors consume a lot of water, and the fused water is difficult to handle, posing an environmental hazard.

[0012] 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

[0013] The technical problem to be solved by the present invention is to provide a control method for a wet dust collector suitable for an aluminum can production line, which is used to centrally collect aluminum powder particles generated during the surface polishing process of the aluminum cans.

[0014] To solve the above technical problems, the present invention provides a control method for a wet dust collector suitable for an aluminum can production line. The wet dust collector includes a sedimentation bottom barrel, a droplet separation cylinder, and a power mechanism. The centrifugal blades of the power mechanism rotate, causing the droplet separation cylinder to generate negative pressure, sucking aluminum powder particles into the droplet separation cylinder. Water enters the water supply pipe of the droplet separation cylinder, moistening the aluminum powder particles and then flowing them into the sedimentation bottom barrel.

[0015] The control method using the wet dust collector comprises the following steps:

[0016] Step 1: Turn on the wet dust collector and operate the power mechanism, which drives the centrifugal fan blades to rotate, so that the droplet separation cylinder generates negative pressure and is connected to the polishing brush of the aluminum can. The aluminum powder particles generated by polishing are sucked into the droplet separation cylinder;

[0017] Step 2: Water is introduced into the water supply pipe and 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, while the remaining tiny aluminum powder particles enter the droplet separation cylinder;

[0018] Step 3: The aluminum powder particles and water rotate along the inner wall of the droplet separation cylinder 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;

[0019] Step 4: Discharge the mixed liquid with higher density at the bottom of the sedimentation bottom barrel into the sedimentation tank.

[0020] Furthermore, the sedimentation bottom barrel is arranged below the droplet separation cylinder, and the power mechanism is arranged in the droplet separation cylinder;

[0021] The droplet separation cylinder also includes a fixed support, an aluminum powder particle air inlet pipe, a separation tank, a motor air inlet and a diversion funnel; the fixed support is arranged at the bottom of the separation tank, the aluminum powder particle air inlet pipe, the motor air inlet and the water supply pipe are all arranged on the wall of the separation tank, and the diversion funnel is arranged inside the separation tank.

[0022] Furthermore, the sedimentation bottom barrel includes a bottom barrel, a partition, 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 an elongated groove on the barrel wall, the partition is fixed in the bottom barrel by a number of 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 a pulley is also provided at the bottom of the bottom barrel.

[0023] Furthermore, the foam reflux device includes a foam recovery adjustment plate, a foam recovery square tube, a foam recovery partition and screws. The foam recovery adjustment plate can be adjusted on the water level control box through the screws, and the foam recovery square tube is fixedly arranged on the upper part of the bottom barrel and connected to the foam recovery partition.

[0024] Furthermore, the liquid level gauge is provided with a plurality of position sensing switches, and a floating ball is provided at the lower end of the liquid level gauge.

[0025] Furthermore, a fixed plate is provided on the top of the separation tank barrel, and the barrel wall of the separation tank barrel also has a splash-proof partition and an observation window. The diversion funnel includes a circumferential mounting ring, a conical guide plate and a cylindrical guide tube. The circumferential mounting ring is connected to the cylindrical guide tube, and the conical guide plate is provided on the circumferential side of the top of the circumferential mounting ring.

[0026] Furthermore, the power mechanism also includes an exhaust fan base, an electric motor, a pipe connecting sleeve, and a fan fixing plate; the motor is arranged in the exhaust fan base, the pipe connecting sleeve is arranged on the motor air inlet, the fan fixing plate is arranged at the bottom of the exhaust fan base, the centrifugal fan blades are electrically connected to the motor, and the centrifugal fan blades have a number of flow-interrupting slits, and the flow-interrupting slits are arc-shaped structures.

[0027] Furthermore, the exhaust fan base includes an exhaust duct, an air guide duct, a base mounting plate, several support plates, a sealing top plate, a sealing cylinder and a motor air duct; an exhaust duct fixing plate is provided on the top of the exhaust fan base, one end of the exhaust duct is fixedly connected to the inner wall of the air guide duct, and the other end is fixedly connected to the sealing top plate, the air guide duct is fixedly connected to the exhaust duct fixing plate, the base mounting plate is fixedly provided on the outer wall side of the middle part of the air guide duct, the upper end of the support plate is fixedly connected to the inner wall of the air guide duct, and the lower end is fixedly connected to the top of the sealing top plate, the sealing cylinder is fixedly connected to the bottom of the sealing top plate, the motor air duct is fixedly connected to the outer wall of the sealing cylinder and is connected to the motor air inlet through the pipe connecting sleeve.

[0028] The implementation of the present invention has the following beneficial effects:

[0029] (1) The motor is completely placed inside the droplet separation cylinder. The motor is sealed around the structure, leaving only three holes leading to the outside. The exhaust pipe not only serves to exhaust and dissipate heat from the motor, but also serves as a wire pipeline. The two motor air ducts serve as air intakes to ensure air circulation and heat transfer from the motor. The built-in design of the motor can shorten the length of the motor shaft, and the shaft end is connected to the centrifugal fan blade, which effectively reduces the vibration generated during high-speed centrifugal operation.

[0030] (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 agglomerate has a larger inertia and moves closer to the outer ring. At this time, it will frequently collide with the outer circumference of the steel plate on the partition until the aluminum powder particles are broken up and then go to the sedimentation pool through the drain port.

[0031] (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 and adjust the bottom surface of the foam recovery adjustment plate to a page 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 air flow 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 drawn 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;

[0032] (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; the upper end of the guide rod inside the liquid level gauge is connected to a permanent magnet, and the position of the permanent magnet is always maintained between the second position sensing switch and the third position sensing switch for 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 position and has not returned to the optimal water level state after the set time, it is necessary to check;

[0033] (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 flows back to the sedimentation bottom barrel 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 does not overflow outside the wet dust collector. When the liquid level returns to normal, the water pump stops running.

[0034] (6) The two motor air ducts on the exhaust base are connected to the two motor air inlets in the droplet separation cylinder through pipe connecting sleeves. The pipe connecting sleeves are made of high-quality polyurethane material. They not only connect the motor and the outside to form air convection, but also effectively reduce vibration when the centrifugal fan blades vibrate at high speed, thus better ensuring that the wet dust collector can operate stably for a long time.

[0035] (7) A ceramic filling coating is added to the inner wall of the droplet separation cylinder. When the wet dust collector is in operation, the inner wall and the mixed liquid are constantly rubbing against each other. This not only effectively protects the inner surface, but also makes the mixed liquid on the inner wall more easily flow back downwards because the coating becomes flat and smooth after solidification, without the phenomenon of hanging on the wall.

[0036] (8) After the mixed liquid in the sedimentation bottom barrel is discharged, it passes through three sedimentation tanks in sequence. During the polishing process of the aluminum can, except for the aluminum powder particles, no other harmful gases are produced. 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 for water replenishment, ensuring the reuse of water resources, effectively saving water resources, and being conducive to sustainable development requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the process of an embodiment of the present invention;

[0038] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the internal structure of the sedimentation bottom barrel according to an embodiment of the present invention;

[0040] Figure 4 is a cross-sectional view of a sedimentation bottom barrel according to an embodiment of the present invention;

[0041] Figure 5 Schematic diagram of the structure of the partition according to an embodiment of the present invention;

[0042] Figure 6 This is a schematic structural diagram of a droplet separation cartridge according to an embodiment of the present invention;

[0043] Figure 7 is a cross-sectional view of a droplet separation cartridge according to an embodiment of the present invention;

[0044] Figure 8 This is a structural diagram of a diversion funnel according to an embodiment of the present invention;

[0045] Figure 9 1 is a schematic structural diagram of a power mechanism according to an embodiment of the present invention;

[0046] Figure 10 It is a cross-sectional view of the power mechanism of an embodiment of the present invention. DETAILED DESCRIPTION

[0047] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0048] like Figure 1-10As shown, a control method for a wet dust collector suitable for an aluminum can production line is shown. When a single aluminum can needs to undergo a can body polishing process, the wet dust collector is turned on in advance to start the motor 3B. The motor 3B drives the centrifugal fan blades 3E installed on the motor shaft to rotate at high speed, so that the droplet separation cylinder 2 generates a centrifugal airflow; the airflow inlet is connected to the polishing brush of the aluminum can, and the aluminum powder particles generated by the polishing are continuously attracted to the inside of the droplet separation cylinder 2; at the same time, water is introduced into the water supply pipe 2H, and the water is sprayed out in a dense mist through the rapid increase of the airflow, thereby forming 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 due to the action of centrifugal force and weight. The remaining tiny aluminum powder particles will follow the airflow through the pipe of the diversion funnel 2K When it reaches the droplet separation cylinder 2, because the centrifugal fan blades 3E are located here, the centrifugal wind force in this area reaches its maximum value, and tiny aluminum powder particles and mist-like water vapor are brought 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 due to the super-strong centrifugal force, causing the aluminum powder particles and the water vapor to be fully mixed. When a certain amount of aluminum powder is mixed with the water vapor, due to its own gravity, the mixed liquid will flow back to the sedimentation bottom barrel 1 through the conical guide plate 2K2 and the cylindrical guide pipe 2K3 on the guide funnel 2K. After the gas containing aluminum powder particles is fully fused after passing through 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 at the bottom of the sedimentation bottom barrel 1, which will discharge the mixed liquid with higher density at the bottom into the sedimentation tank.

[0049] like Figure 2-10 As shown, a wet dust collector suitable for aluminum can production lines includes a sedimentation drum 1, a droplet separation drum 2, and a power mechanism 3. Sedimentation drum 1 is positioned below droplet separation drum 2, and power mechanism 3 is positioned within droplet separation drum 2. Rotating centrifugal blades 3E of power mechanism 3 generate negative pressure in droplet separation drum 2, drawing aluminum powder particles into the drum. Water enters a water supply pipe 2H of the drum, moistening the aluminum powder particles and returning them to sedimentation drum 1. After the mixed liquid in sedimentation drum 1 is discharged and sequentially passes through three sedimentation tanks, no harmful gases are produced except for aluminum powder particles during the aluminum can polishing process. 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 replenishment, ensuring the reuse of water resources, effectively conserving water resources, and promoting sustainable development.

[0050] like Figure 3-5As shown, 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 reflux device 1G and a drain port 1H; the bottom barrel 1A is connected to the water level control box 1E through an elongated groove 1A1 on the barrel wall, and the partition 1B is fixed in the bottom barrel 1A through a number of blocks 1A2. A partition 1B is installed inside the sedimentation bottom barrel 1, and the partition 1B 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 a bevel is processed in the middle. When aluminum powder particles agglomerate under the sedimentation bottom barrel, the accumulated water at the bottom also continues to rotate with the centrifugal fan blades, and the inertia of the agglomerates is relatively large, so they are moved closer to the outer circle. At this time, they will frequently collide with the outer circumference of the steel plate on the partition 1B until the aluminum powder particles are broken up and then come to the sedimentation pool through the drain port 1H. Liquid level gauge 1C is mounted on water level control box 1E via mounting bracket 1D. Overflow port 1F is located at the top of water level control box 1E. The water pump inlet is connected to overflow port 1F, and the pump outlet is connected to the sedimentation tank. When the wet dust collector is shut down, the internal mixed liquid flows back into the sedimentation tank 1 due to gravity, causing the water level to rise suddenly and rapidly. At this time, the water pump at overflow port 1F starts to pump all the mixed liquid exceeding the overflow port into the sedimentation tank, ensuring that the mixed liquid does not overflow outside the wet dust collector. When the liquid level returns to normal, the water pump stops. Drain port 1H is located at the bottom of the bottom tank 1A, and a pulley 1K is also installed at the bottom of the bottom tank 1A. The foam reflux device 1G includes a foam recovery adjustment plate 1G1, a foam recovery square tube 1G2, a foam recovery partition 1G3 and a screw 1G4. The foam recovery adjustment plate 1G1 can be adjusted on the water level control box 1E through the screw 1G4. The foam recovery square tube 1G2 is fixedly set on the upper part of the bottom barrel 1A and connected to the foam recovery partition 1G3. When it is found that there is a lot of foam on the liquid surface of the water level control box 1E and it affects the detection value of the floating ball 1C5, you can loosen the butterfly screw 1G4, adjust the bottom surface of the foam recovery adjustment plate 1G1 to a page about 30 mm below the foam, and then tighten the butterfly screw 1G4 to fix the foam recovery adjustment plate 1G1; the foam recovery square tube 1G2 is welded to the barrel wall and connected to the foam recovery partition 1G3. When the bottom surface of the foam recovery adjustment plate 1G1 is adjusted to below the foam, because the air flow inside 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 drawn into the interior due to the pressure difference, thereby ensuring that the floating ball 1C5 below the liquid level gauge 1C can accurately reflect the water level at this time in real time.

[0051] like Figure 4As shown, the liquid level gauge 1C is equipped with four position sensors: the first position sensor 1C1, the second position sensor 1C2, the third position sensor 1C3, and the fourth position sensor 1C4. A floating ball 1C5 is located at the bottom of the liquid level gauge 1C. The four position sensors are fixed from top to bottom, and each can be adjusted according to production conditions. A permanent magnet is connected to the upper end of the guide rod inside the liquid level gauge. The position of the permanent magnet is always maintained between the second position sensor 1C2 and the third position sensor 1C3, representing the optimal water level. When the permanent magnet is lower than the third position sensor 1C3, it indicates insufficient water inside, and the water supply pipe 2H can be adjusted to increase the water flow. Otherwise, the water level is too high, and the water supply through the water supply pipe 2H needs to be reduced. If the permanent magnet is in the position of the first position sensor 1C1 or the fourth position sensor 1C4 and has not returned to the optimal water level after a set time, an inspection is required.

[0052] like Figure 6-8 As shown, the droplet separation cylinder 2 also includes a fixed support 2A, an aluminum powder inlet pipe 2B, a splash-proof baffle 2C, a separation tank 2D, a motor air inlet 2F, and a diversion funnel 2K. The fixed support 2A is located at the bottom of the separation tank 2D. The aluminum powder inlet pipe 2B, the motor air inlet 2F, and the water supply pipe 2H are all located on the wall of the separation tank 2D. A fixed plate 2E is located at the top of the separation tank 2D. The wall of the separation tank 2D also has an observation window 2G. The diversion funnel 2K is located within the separation tank 2D. The diversion funnel 2K includes a circumferential mounting ring 2K1, a conical diversion plate 2K2, and a cylindrical diversion tube 2K3. The circumferential mounting ring 2K1 is connected to the cylindrical diversion tube 2K3, and the conical diversion plate 2K2 is located around the top of the circumferential mounting 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 in operation, the inner wall and the mixed liquid are constantly rubbed, which can not only effectively protect the inner surface, but also because the coating becomes flat and smooth after solidification, it can make the mixed liquid on the inner wall more easily flow back downward without hanging on the wall.

[0053] like Figure 9 and 10As shown, the power mechanism 3 also includes an exhaust fan base 3A, a motor 3B, a pipe connection sleeve 3C, and a fan mounting plate 3D. The motor 3B is mounted within the exhaust fan base 3A, and the pipe connection sleeve 3C is mounted on the motor air inlet 2F. The two motor air ducts 3A8 on the exhaust base 3A are connected to the two motor air inlets 2F in the droplet separator 2 via the pipe connection sleeves 3C. Preferably, the pipe connection sleeves 3C are made of high-quality polyurethane material. They not only connect the motor 3B to the outside to form air convection, but also effectively reduce vibration when the centrifugal blades 3E vibrate at high speed, thereby better ensuring the long-term and stable operation of the wet dust collector. The fan mounting plate 3D is mounted at the bottom of the exhaust fan base 3A. The centrifugal blades 3E are electrically connected to the motor 3B. The centrifugal blades 3E have several flow-interference slits 3E1 on the centrifugal blades 3E1. The flow-interference slits 3E1 are arc-shaped. Under the turbulent flow and shearing action of the flow-interference slits 3E1, the water and aluminum powder particles are further broken down and atomized. The exhaust fan base 3A includes an exhaust duct 3A2, an air guide duct 3A3, a base mounting plate 3A4, several 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 provided on the top of the exhaust fan base 3A, one end of the exhaust duct 3A2 is fixedly connected to the inner wall of the air guide duct 3A3, and the other end is fixedly connected to the sealing top plate 3A6, the air guide duct 3A3 is fixedly connected to the exhaust duct fixing plate 3A1, the base mounting plate 3A4 is fixedly provided on the outer wall side of the middle part of the air guide duct 3A3, the upper end of the support plate 3A5 is fixedly connected to the inner wall of the air 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 to the bottom of 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 connecting sleeve 3C. The motor 3B is completely placed inside the droplet separation cylinder 2. The surrounding area of the motor 3B is a sealed structure, leaving only three holes leading to the outside. The exhaust duct 3A2 not only serves to exhaust and dissipate heat from the motor, but also serves as a wiring conduit. The two motor air ducts 3A8 serve as air intakes, ensuring air circulation and heat transfer from the motor. The built-in design of the motor 3B shortens the length of the motor shaft, and the shaft end is connected to the centrifugal fan blades 3E, effectively reducing vibration generated during high-speed centrifugal operation.

[0054] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A control method for a wet dust collector suitable for an aluminum can production line, characterized in that: The wet dust collector used comprises a sedimentation bottom barrel (1), a droplet separation cylinder (2) and a power mechanism (3); the centrifugal fan blades (3E) of the power mechanism (3) rotate to generate negative pressure in the droplet separation cylinder (2), thereby sucking aluminum powder particles into the interior of the droplet separation cylinder (2); water is introduced into the water supply pipe (2H) of the droplet separation cylinder (2), and the aluminum powder particles are moistened and then flow into the sedimentation bottom barrel (1); The control method using the wet dust collector comprises the following steps: Step 1: Turn on the wet dust collector, and operate the power mechanism (3). The power mechanism (3) drives the centrifugal fan blade (3E) to rotate, so that the droplet separation cylinder (2) generates negative pressure and is connected to the polishing brush of the aluminum can. The aluminum powder particles generated by the polishing are sucked into the inside of the droplet separation cylinder (2); Step 2: Water is introduced into the water supply pipe (2H) and 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). The remaining tiny aluminum powder particles enter the droplet separation cylinder (2); Step 3: The aluminum powder particles and water rotate along the inner wall of the droplet separation cylinder (2) to fully mix the aluminum powder particles and the water. When a certain amount of aluminum powder particles is mixed in the water, a mixed liquid is formed and flows back into the sedimentation bottom barrel (1); Step 4: discharging the mixed liquid with a higher density at the bottom of the sedimentation bottom barrel (1) into a sedimentation tank; 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 droplet separation cylinder (2) further comprises a fixed support (2A), an aluminum powder particle air inlet pipe (2B), a separation cylinder (2D), a motor air inlet (2F) and a diversion funnel (2K); the fixed support (2A) is arranged at the bottom of the separation cylinder (2D), the aluminum powder particle air inlet pipe (2B), the motor air inlet (2F) and the water supply pipe (2H) are all arranged on the cylinder wall of the separation cylinder (2D), and the diversion funnel (2K) is arranged inside the separation cylinder (2D); The sedimentation bottom barrel (1) comprises 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 reflux device (1G) and a drain port (1H); the bottom barrel (1A) is connected to the water level control box (1E) via an elongated groove (1A1) on the barrel wall; the partition (1B) is fixed in the bottom barrel (1A) via a plurality of clamping blocks (1A2); the liquid level gauge (1C) is arranged on the water level control box (1E) via 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); and a pulley (1K) is further arranged at the bottom of the bottom barrel (1A); The foam reflux device (1G) comprises a foam recovery regulating plate (1G1), a foam recovery square tube (1G2), a foam recovery partition (1G3) and a screw (1G4); the foam recovery regulating plate (1G1) is adjustably arranged on the water level control box (1E) via the screw (1G4); the foam recovery square tube (1G2) is fixedly arranged on the upper part of the bottom barrel (1A) and connected to the foam recovery partition (1G3).

2. The control method for a wet dust collector suitable for an aluminum can production line according to claim 1, characterized in that: The liquid level meter (1C) is provided with a plurality of position sensing switches, and a floating ball (1C5) is provided at the lower end of the liquid level meter (1C).

3. The control method of a wet dust collector suitable for an aluminum can production line according to claim 1, characterized in that: A fixing plate (2E) is provided on the top of the separation tank barrel (2D); the barrel wall of the separation tank barrel (2D) further comprises a splash-proof baffle (2C) and an observation window (2G); the guide funnel (2K) comprises a circumferential mounting ring (2K1), a conical guide plate (2K2) and a cylindrical guide tube (2K3); the circumferential mounting ring (2K1) is connected to the cylindrical guide tube (2K3); and the conical guide plate (2K2) is provided on the circumferential side of the top of the circumferential mounting ring (2K1).

4. The control method for a wet dust collector suitable for an aluminum can production line according to claim 3, characterized in that: The power mechanism (3) further comprises an exhaust fan base (3A), an electric motor (3B), a pipe connecting sleeve (3C), and a fan fixing plate (3D); the electric motor (3B) is arranged in the exhaust fan base (3A), the pipe connecting 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 blade (3E) is electrically connected to the electric motor (3B), and the centrifugal blade (3E) has a plurality of flow-disturbing slits (3E1), and the flow-disturbing slits (3E1) are arc-shaped structures.

5. The control method for a wet dust collector suitable for an aluminum can production line according to claim 4, characterized in that: The exhaust fan base (3A) comprises an exhaust pipe (3A2), an air guide pipe (3A3), a base mounting plate (3A4), a plurality of support plates (3A5), a sealing top plate (3A6), a sealing cylinder (3A7) and a motor air duct (3A8); an exhaust pipe fixing plate (3A1) is provided on the top of the exhaust fan base (3A); one end of the exhaust pipe (3A2) is fixedly connected to the inner wall of the air guide pipe (3A3), and the other end is fixedly connected to the sealing top plate (3A6); the air guide pipe (3A3) is fixedly connected to the exhaust pipe fixing plate (3A1). 1) Fixed connection, wherein the base mounting plate (3A4) is fixedly arranged on the outer wall side of the middle portion of the air duct (3A3), the upper end of the support plate (3A5) is fixedly connected to the inner wall of the air 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), and the motor air duct (3A8) is fixedly connected to the outer wall of the sealing cylinder (3A7) and connected to the motor air inlet (2F) through the pipe connecting sleeve (3C).

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