A system and method for separating aluminum hydroxide by strong filtrate sedimentation

Abstract

The present invention discloses a system and method for separating aluminum hydroxide by strong filtrate sedimentation, which specifically relates to the field of filtering and separation technology, including a separation tank, a bracket, an upward push electric cylinder, and a timely removal separation mechanism; wherein the timely removal separation mechanism includes a linkage bar and a pull rod; and also includes a displacement fitting quick separation mechanism and a fixed force docking quick separation component. The present invention adopts a timely removal separation mechanism, which can quickly move and remove aluminum hydroxide under the action of gravity and the deformation force of the V-shaped deformed filter screen, not only avoiding the clogging of the V-shaped deformed filter screen, but also greatly improving the separation efficiency of aluminum hydroxide, so that the filtration and separation efficiency of aluminum hydroxide impurities is greatly improved, thereby solving the problem that the filter screen is not only blocked, but also the aluminum hydroxide is difficult to be quickly removed due to the adsorption extrusion force, which greatly reduces the filtration and separation efficiency of aluminum hydroxide impurities.

Description

Technical Field

[0001] The present invention relates to the technical field of filtration separation, and more specifically, to a system and method for separating aluminum hydroxide by strong filtrate sedimentation. Background Art

[0002] The system of separating aluminum hydroxide by strong filtrate sedimentation plays an important role in industrial production. Its usefulness is mainly reflected in the separation and filtration function of aluminum hydroxide. Through the separation and filtration system, aluminum hydroxide can be effectively separated from the slurry, thereby achieving the purification of aluminum hydroxide. The separated aluminum hydroxide can be further used to manufacture alumina or other aluminum salt products to improve the quality and purity of the products.

[0003] In the existing public documents, the patent with patent announcement number CN117679818A discloses a system and method for removing impurities from aluminum hydroxide slurry. The technology is connected to the cold water inlet through the circulation pipeline through the filtrate outlet of the wash disc filter, and a hot water inlet is set on the first wash filter cake tank. The first wash filter cake tank feeds the second wash disc filter through the second pipeline. The filter cake outlet of the second wash disc filter feeds the second wash filter cake tank. The secondary filter cake tank is provided with a pulp concentrate inlet, and the secondary filter cake tank feeds the decomposition tank through the third pipeline. The invention has a simple structure and is easy to operate. It can effectively reduce the impurity content of the purified aluminum hydroxide filter cake, improve the efficiency of seed crystallization, and avoid waste of raw materials. However, the technology still has the following problems when used.

[0004] In the process of separating aluminum hydroxide by strong filtrate sedimentation, although the slurry can be filtered through a filter screen, the aluminum hydroxide on the filter screen needs to be removed after filtration, and the filter screen part needs to be disassembled and then removed. In addition, the aluminum hydroxide will be adsorbed and contacted on the filter screen, which not only causes the filter screen to be blocked, but also makes it difficult to quickly remove the aluminum hydroxide due to the adsorption and extrusion force, which greatly reduces the filtering and separation efficiency of aluminum hydroxide impurities. Therefore, a system and method for separating aluminum hydroxide by strong filtrate sedimentation are provided. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a system and method for separating aluminum hydroxide by strong filtrate sedimentation.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A system for separating aluminum hydroxide by sedimentation of strong filtrate, comprising a separation tank, the outer wall of the separation tank is fixedly connected with a bracket, one side of the bracket is fixedly installed with an upward push electric cylinder, and the output end of the upward push electric cylinder is installed with a timely removal and separation mechanism; the timely removal and separation mechanism comprises a linkage bar fixedly installed at the output end of the upward push electric cylinder, and the lower surface of the linkage bar is fixedly connected with a pull rod, the bottom end of the pull rod is fixedly connected with a V-shaped deformed filter screen, the top of the V-shaped deformed filter screen is fixedly connected with a support ring, and the support ring is fixedly connected to the separation tank; one side of the pull rod is provided with a downward push electric cylinder fixedly connected to the linkage bar, and one side of the downward push electric cylinder is fixedly connected with a socket block; the inner wall of the socket block is fixedly connected with a guide tube, and the outer wall of the guide tube is fixedly connected with a fixed sleeve block, and the inner wall of the fixed sleeve block is fixedly installed with two distance sensors; the outer wall of the pull rod is slidably connected with a groove ring; one side of the groove ring is provided with a displacement fitting quick separation mechanism; the output end of the downward push electric cylinder is provided with a fixed force docking quick separation component.

[0007] Preferably, a gap is provided between the pull rod and the push-down electric cylinder, and the cross-sectional shape of the pull rod is circular, the top end of the guide tube is fixedly connected to a connecting hose, and the top end of the connecting hose is fixedly connected to a flange. The outer wall of the separation tank is fixedly connected to an outer ring receiving bucket, and a receiving bucket is slidably connected to the lower surface of the outer ring receiving bucket. Both ends of the receiving bucket are bonded with iron blocks, and one side of each iron block is magnetically connected to an electromagnet; the electromagnet is fixedly connected to the separation tank. The bottom end of the separation tank is threadedly connected to a valve, and a controller is fixedly installed on one side of the push-up electric cylinder.

[0008] When this technology is in use, two distance sensors sense the distance of the slurry inside the separation tank. When the distance value sensed by the distance sensor is the same as the distance value set by the controller, the controller starts the upward push electric cylinder. Then the upward push electric cylinder pushes the linkage bar upward, and at the same time the linkage bar drives the downward push electric cylinder upward, so that the pull rod drives the V-shaped deformed filter to move upward, so that the bottom tip of the V-shaped deformed filter begins to move upward, thereby quickly filtering and separating a large amount of aluminum hydroxide. When the bottom tip of the V-shaped deformed filter moves upward to the highest point, the entire V-shaped deformed filter is in a vertically upward conical state, and the bottom tip of the V-shaped deformed filter becomes the top tip position. The large amount of aluminum hydroxide filtered and separated by the inner wall of the V-shaped deformed filter can be separated and moved to the inner wall of the outer ring loading bucket along the inclined surface of the outer wall of the V-shaped deformed filter under the state of the inclined surface of the outer wall of the V-shaped deformed filter.

[0009] Preferably, the displacement fitting quick separation mechanism comprises a support frame fixedly arranged on one side of the groove ring; the inner wall of the support frame is slidably connected with two threaded sleeves, the inner wall of the threaded sleeve is provided with a bidirectional screw, the two threaded sleeves are threadedly connected with the bidirectional screw, and the bidirectional screw is rotatably connected with the support frame; one end of the support frame is fixedly connected with a reduction motor, and the reduction motor is used to drive the bidirectional screw to rotate, the two threads on the outer wall of the bidirectional screw are opposite and symmetrically opened, the bottom end of each threaded sleeve is fixedly connected with a rack, and the inner wall of each rack is meshingly connected with a linkage gear; the inner wall of the linkage gear is fixedly connected with a rotating shaft, the two rotating shafts are rotatably connected with the groove ring, and a sleeve scraper is fixedly connected to the outer wall of the rotating shaft and near the middle position thereof, a torque sensor is fixedly installed at one end of one of the rotating shafts, and a support block is provided on the upper surface of the torque sensor, and the torque sensor and the groove ring are fixedly connected to the support block.

[0010] A transmission gear is provided above the sleeve scraper strip, and a driving shaft is fixedly connected to the inner wall of the transmission gear, a position-changing motor is fixedly installed on the top of the driving shaft, a driven gear ring is meshingly connected to one side of the outer wall of the transmission gear, the driven gear ring is slidably connected to the pull rod, the upper and lower surfaces of the transmission gear are slidably connected to limit rings, the two limit rings are fixedly connected to the driven gear rings, the output end of the reduction motor is fixedly connected to the bidirectional screw, and the bidirectional screw and the support frame are made of stainless steel;

[0011] The two limiting rings are symmetrically arranged with respect to the transmission gear.

[0012] When this technology is in use, the reduction motor drives the bidirectional screw to rotate, and the bidirectional screw drives the two threaded sleeves to move away from each other under the action of the thread, and the threaded sleeve drives the rack to move left, and the rack drives the linkage gear to rotate counterclockwise, and the linkage gear drives the shaft to rotate counterclockwise, and the shaft drives the sleeve scraper to rotate counterclockwise downward, while the other sleeve scraper rotates clockwise downward. The shaft will sense the torque through the torque sensor. When the torque value sensed by the torque sensor is the same as the torque value set by the controller, the controller turns off the displacement motor, and then stops the driven gear ring from rotating. In this way, the two sleeve scrapers can contact the inclined surface of the outer wall of the V-shaped deformed filter according to the specified pressure, and then the drive shaft is started by the displacement motor, and the transmission gear drives the driven gear ring to mesh and rotate, and the driven gear ring drives the two limit rings to rotate synchronously, and the driven gear ring drives the groove ring to rotate, and the groove ring drives the two shafts to rotate 360 ​​degrees forward. The shaft drives the sleeve scraper to scrape and separate along the inclined surface of the outer wall of the V-shaped deformed filter.

[0013] Preferably, the fixed force docking quick separation component includes a concave pressure block fixedly arranged at the output end of the push-down electric cylinder; the bottom end of the concave pressure block is fixedly connected to a sliding column, and the position shifting motor and the concave pressure block are fixedly connected, the outer wall of the sliding column is slidably connected to a sliding groove sleeve, and the sliding groove sleeve and the driven gear ring are fixedly connected; a pressure sensor is fixedly installed at the bottom end of the groove ring, and a shoveling ring is fixedly connected to the output end of the pressure sensor, the shoveling ring is slidably connected to the pull rod, and a support ring is fixedly connected to the outer wall of the pull rod near its bottom end, and the support ring is used to limit and support the shoveling ring.

[0014] When this technology is in use, the push-down electric cylinder pushes the concave pressure block downward, the sliding column drives the sliding groove sleeve downward, and the sliding groove sleeve makes the driven gear ring move downward. The groove ring also drives the shoveling ring downward, and the two rotating shafts drive the two sleeve scrapers to move downward synchronously, shoveling the aluminum hydroxide adsorbed on the outer wall of the tie rod, so that the aluminum hydroxide can be separated from the tie rod and tilted downward to the inner wall of the outer ring loading bucket, and the shoveling ring is squeezed on the pressure sensor. When the pressure value sensed by the pressure sensor is the same as the pressure value set by the controller, the push-down electric cylinder is closed by the controller.

[0015] A method comprising the following steps:

[0016] Step 1: Strong filtrate sedimentation separation: the flange is docked on the slurry delivery pipeline containing aluminum hydroxide, and the slurry passes through a V-shaped deformed filter screen to achieve strong filtrate sedimentation filtration separation of aluminum hydroxide in the slurry;

[0017] Step 2: Take out and separate in time. When the distance value sensed by the distance sensor is the same as the distance value set by the controller, the tip of the bottom end of the V-shaped filter moves upward to the highest point, and a large amount of aluminum hydroxide moves along the inclined surface of the outer wall of the V-shaped filter to the inner wall of the outer ring loading bucket;

[0018] Step 3: Fixed force docking and quick separation. When the pressure value sensed by the pressure sensor is the same as the pressure value set by the controller, the controller closes the push-down electric cylinder;

[0019] Step 4: Quick separation by displacement and fitting. The reduction motor drives the bidirectional screw to rotate. The two sleeve scrapers are respectively squeezed on the inclined surface of the outer wall of the V-shaped deformed filter screen, and the two sleeve scrapers rotate to make the aluminum hydroxide fall onto the inner wall of the outer ring receiving bucket.

[0020] Technical effects and advantages of the present invention:

[0021] 1. The present invention adopts a timely removal separation mechanism. Two distance sensors perform distance sensing on the slurry inside the separation tank. The upward push electric cylinder pushes the linkage bar to move upward, and the linkage bar drives the pull rod to move upward. The downward push electric cylinder drives the socket block to move the guide tube upward. In this way, the pull rod drives the V-shaped deformed filter to move upward, and the V-shaped deformed filter can quickly contact the slurry inside the separation tank. When the tip of the bottom end of the V-shaped deformed filter moves upward to the highest point, the entire V-shaped deformed filter is in a vertically upward conical state, and the bottom end of the V-shaped deformed filter becomes a tip position. Under the state of the inclined surface of the outer wall of the V-shaped deformed filter, a large amount of aluminum hydroxide is guided to the inner wall of the outer ring loading bucket along the inclined surface of the outer wall of the V-shaped deformed filter. The aluminum hydroxide filtered and separated on the V-shaped deformed filter can be quickly moved to take out the aluminum hydroxide under the action of gravity and the deformation force of the V-shaped deformed filter, which not only avoids the clogging of the V-shaped deformed filter, but also greatly improves the efficiency of separating and removing aluminum hydroxide, so that the efficiency of filtering and separating aluminum hydroxide impurities is greatly improved;

[0022] 2. The present invention uses a displacement fitting quick separation mechanism. The reduction motor drives the bidirectional screw to rotate, the distance between the two threaded sleeves increases, the rotating shaft drives the sleeve scraper to rotate counterclockwise downward, and the other sleeve scraper rotates clockwise downward. The two sleeve scrapers are respectively squeezed on the outer wall inclined surface of the V-shaped deformed filter according to the specified pressure. The drive shaft is started by the displacement motor, and the drive shaft drives the transmission gear to rotate. The groove ring drives the two rotating shafts to rotate 360 ​​degrees forward. The sleeve scraper is scraped and separated along the outer wall inclined surface of the V-shaped deformed filter. Under the action of gravity and scraping force, aluminum hydroxide can fall onto the inner wall of the outer ring loading bucket. In this way, the aluminum hydroxide on the V-shaped deformed filter can be quickly separated and taken out under the action of gravity and scraping force, so that the filtration and separation efficiency of aluminum hydroxide impurities is greatly improved;

[0023] 3. The present invention adopts a fixed-force docking quick separation component, and starts the push-down electric cylinder to push the concave pressure block downward. The concave pressure block causes the sliding column to move downward, and the groove ring drives the shoveling ring to move downward at the same time. The groove ring also drives the two rotating shafts to move downward synchronously, and the aluminum hydroxide adsorbed on the outer wall of the pull rod is shoveled until the shoveling ring contacts the support ring. The shoveling ring is squeezed on the pressure sensor. When the pressure value sensed by the pressure sensor is the same as the pressure value set by the controller, the push-down electric cylinder is closed by the controller, so that the groove ring can quickly reach the top tip position of the V-shaped deformed filter screen, thereby quickly discharging the aluminum oxide separated from the outer wall of the V-shaped deformed filter screen, which can not only prevent the V-shaped deformed filter screen from being blocked, but also greatly improve the efficiency of filtering and separating aluminum oxide by the V-shaped deformed filter screen;

[0024] According to the mutual influence of the above-mentioned multiple effects, the V-shaped deformable filter is first made into a vertically upward conical state, and a large amount of aluminum hydroxide is guided to the inner wall of the outer ring receiving bucket along the inclined surface of the outer wall of the V-shaped deformable filter under the action of gravity, and then the aluminum hydroxide adsorbed on the outer wall of the pull rod is shoveled. When the pressure value sensed by the pressure sensor is the same as the pressure value set by the controller, the last two sleeve scraping strips are respectively squeezed on the inclined surface of the outer wall of the V-shaped deformable filter according to the specified pressure and rotated and scraped. In summary, the aluminum hydroxide can be quickly moved and removed under the action of gravity, the deformation force of the V-shaped deformable filter, and the displacement and fitting scraping force, which not only avoids the clogging of the V-shaped deformable filter, but also greatly improves the separation and removal efficiency of the V-shaped deformable filter for aluminum hydroxide, so that the filtration and separation efficiency of aluminum hydroxide impurities is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the top view of the structure of the system for separating aluminum hydroxide by strong filtrate sedimentation of the present invention.

[0026] Figure 2 It is a schematic diagram of the partial structure of the connection between the sleeve block and the guide tube of the present invention from a front view.

[0027] Figure 3 It is a schematic diagram of the partial structure of the connection between the receiving bucket and the iron block in a top view of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the system for separating aluminum hydroxide by settling of strong filtrate according to the present invention when viewed from above.

[0029] Figure 5 It is a schematic diagram of the vertical cross-sectional structure of the system for separating aluminum hydroxide by strong filtrate sedimentation according to the present invention.

[0030] Figure 6 It is a schematic diagram of the partial structure of the connection between the pull rod and the groove ring of the present invention.

[0031] Figure 7 It is a schematic diagram of the local structure of the connection between the bidirectional screw and the threaded sleeve block of the present invention.

[0032] Figure 8 It is a schematic diagram of the partial structure of the vertical section of the connection between the V-shaped deformed filter screen and the pull rod of the present invention.

[0033] Fig. 9 For the present invention Figure 8 Enlarged structural diagram at A in the middle.

[0034] Fig.10 It is a schematic diagram of the local structure of the vertical section of the connection between the pull rod and the support ring of the present invention.

[0035] The accompanying drawings are marked as follows: 1, separation tank; 2, bracket; 3, push-up electric cylinder; 4, linkage bar; 5, pull rod; 6, V-shaped deformed filter; 7, support ring; 8, push-down electric cylinder; 9, sleeve block; 10, guide pipe; 11, fixed sleeve block; 12, distance sensor; 13, groove ring; 14, connecting hose; 15, flange; 16, outer ring receiving bucket; 17, receiving bucket; 18, iron block; 19, electromagnet; 20, valve; 21, controller; 22, Support frame; 23, threaded sleeve block; 24, bidirectional screw; 25, reduction motor; 26, rack; 27, linkage gear; 28, rotating shaft; 29, sleeve scraper; 30, torque sensor; 31, support block; 32, transmission gear; 33, driving shaft; 34, shifting motor; 35, driven gear ring; 36, limiting ring; 37, concave pressure block; 38, sliding column; 39, sliding groove sleeve; 40, pressure sensor; 41, shoveling ring; 42, support ring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] As attached Figure 1-10 A system for separating aluminum hydroxide by strong filtrate sedimentation is shown. The system for separating aluminum hydroxide by strong filtrate sedimentation is provided with a timely removal separation mechanism, a displacement and fitting rapid separation mechanism, and a fixed force docking rapid separation component. The arrangement of each mechanism and component can quickly move and remove aluminum hydroxide under the action of gravity, the deformation force of the V-shaped deformable filter screen 6, and the displacement and fitting scraping force, which not only avoids the clogging of the V-shaped deformable filter screen 6, but also greatly improves the separation and removal efficiency of the V-shaped deformable filter screen 6 for aluminum hydroxide, thereby greatly improving the filtering and separation efficiency of aluminum hydroxide impurities. The specific structural arrangement of each mechanism and component is as follows.

[0038] In this technical solution, as shown in the attached Figure 1-2As shown, the timely removal separation mechanism includes a linkage bar 4 fixedly installed on the output end of the upper push electric cylinder 3, and the lower surface of the linkage bar 4 is fixedly connected with a pull rod 5, the bottom end of the pull rod 5 is fixedly connected with a V-shaped deformable filter screen 6, the top of the V-shaped deformable filter screen 6 is fixedly connected with a support ring 7, and the support ring 7 is fixedly connected to the separation tank 1; one side of the pull rod 5 is provided with a push-down electric cylinder 8 fixedly connected to the linkage bar 4, and one side of the push-down electric cylinder 8 is fixedly connected with a socket block 9; the inner wall of the socket block 9 is fixedly connected with a guide tube 10, and the outer wall of the guide tube 10 is fixedly connected with a fixed sleeve block 11, and the inner wall of the fixed sleeve block 11 is fixedly installed with two distance sensors 12; the outer wall of the pull rod 5 is slidably connected with a groove ring 13; one side of the groove ring 13 is provided with a displacement fitting quick separation mechanism; the output end of the push-down electric cylinder 8 is provided with a fixed force docking quick separation component.

[0039] In this technical solution, as shown in the attached Figure 1-4 As shown, the top of the guide tube 10 is fixedly connected with a connecting hose 14, and the top of the connecting hose 14 is fixedly connected with a flange 15, so that the flange 15 can be docked on the slurry conveying pipeline containing aluminum hydroxide, and the slurry enters the connecting hose 14 along the flange 15, and enters the guide tube 10 through the connecting hose 14, so as to realize the diversion operation. The outer wall of the separation tank 1 is fixedly connected with an outer ring receiving bucket 16, and a receiving bucket 17 is slidably connected to the lower surface of the outer ring receiving bucket 16. Both ends of the receiving bucket 17 are bonded with iron blocks 18, and one side of each iron block 18 is magnetically connected with an electromagnet 19; the electromagnet 19 is fixedly connected to the separation tank 1, so that the inner part of the outer ring receiving bucket 16 filled with aluminum hydroxide can be moved to the receiving bucket 17 later. By closing the two electromagnets 19, the electromagnet 19 no longer magnetically attracts the iron blocks 18, and the receiving bucket 17 can be pulled, and the receiving bucket 17 and the outer ring receiving bucket 16 are separated.

[0040] The bottom end of the separation tank 1 is threadedly connected to a valve 20, and a controller 21 is fixedly installed on one side of the push-up electric cylinder 3, so that the controller 21 can be started later to open the valve 20, thereby realizing the downward discharge operation of the slurry inside the separation tank 1.

[0041] In this technical solution, as shown in the attached Figure 5-7 As shown, the displacement fitting quick separation mechanism includes a support frame 22 fixedly arranged on one side of the groove ring 13; the inner wall of the support frame 22 is slidably connected with two threaded sleeves 23, and the inner wall of the threaded sleeve 23 is provided with a bidirectional screw 24, and the two threaded sleeves 23 are threadedly connected with the bidirectional screw 24, and the bidirectional screw 24 is rotationally connected with the support frame 22; one end of the support frame 22 is fixedly connected with a reduction motor 25, and the reduction motor 25 is used to drive the bidirectional screw 24 to rotate. The two threads on the outer wall of the bidirectional screw 24 are opposite and symmetrically opened, and the bottom end of each threaded sleeve 23 is fixedly connected with a rack 26, and the inner wall of each rack 26 is meshingly connected with a linkage gear 27.

[0042] A rotating shaft 28 is fixedly connected to the inner wall of the linkage gear 27, and the two rotating shafts 28 are both rotatably connected to the groove ring 13. A sleeve scraper strip 29 is fixedly connected to the outer wall of the rotating shaft 28 near the middle position thereof, and a torque sensor 30 is fixedly installed at one end of one of the rotating shafts 28, and a support block 31 is provided on the upper surface of the torque sensor 30, and the torque sensor 30 and the groove ring 13 are both fixedly connected to the support block 31; a transmission gear 32 is provided above the sleeve scraper strip 29, and a driving shaft 33 is fixedly connected to the inner wall of the transmission gear 32, and a shifting motor 34 is fixedly installed on the top of the driving shaft 33, and a driven gear ring 35 is meshingly connected to one side of the outer wall of the transmission gear 32, and the driven gear ring 35 is slidably connected to the pull rod 5, and the upper and lower surfaces of the transmission gear 32 are slidably connected to limit rings 36, and the two limit rings 36 are fixedly connected to the driven gear ring 35. The output end of the reduction motor 25 is fixedly connected to the bidirectional screw 24 , and the bidirectional screw 24 and the support frame 22 are both made of stainless steel; the two limit rings 36 are symmetrically arranged about the transmission gear 32 .

[0043] In this technical solution, as shown in the attached Figure 8-10 As shown, the fixed force docking quick separation assembly includes a concave pressure block 37 fixedly arranged at the output end of the push-down electric cylinder 8; the bottom end of the concave pressure block 37 is fixedly connected with a sliding column 38, and the displacement motor 34 is fixedly connected to the concave pressure block 37, the outer wall of the sliding column 38 is slidably connected with a sliding groove sleeve 39, and the sliding groove sleeve 39 is fixedly connected to the driven gear ring 35; the bottom end of the groove ring 13 is fixedly installed with a pressure sensor 40, and the output end of the pressure sensor 40 is fixedly connected with a shoveling ring 41, and the shoveling ring 41 is slidably connected with the pull rod 5. A support ring 42 is fixedly connected to the outer wall of the pull rod 5 and near its bottom end, and the support ring 42 is used to limit the support of the shoveling ring 41.

[0044] The operating principle of the system for separating aluminum hydroxide by strong filtrate sedimentation of the present invention is as follows:

[0045] Step 1: When the strong filtrate is separated by sedimentation, the flange 15 is first connected to the slurry conveying pipeline containing aluminum hydroxide. The slurry flows along the flange 15 into the connecting hose 14, and then into the guide pipe 10 through the connecting hose 14. The guide pipe 10 is discharged from the bottom to the inner wall of the V-shaped deformable filter screen 6, and the aluminum hydroxide in the slurry is separated by sedimentation and filtration through the V-shaped deformable filter screen 6.

[0046] Step 2: When the separation is removed in time, the push-down electric cylinder 8 supports the sleeve block 9, the sleeve block 9 supports the guide tube 10, and the guide tube 10 supports the fixed sleeve block 11. There are two distance sensors 12 inside the fixed sleeve block 11. The two distance sensors 12 sense the distance of the slurry inside the separation tank 1. When the distance value sensed by the distance sensor 12 is the same as the distance value set by the controller 21, that is, three-fifths of the depth inside the separation tank 1, the controller 21 starts the push-up electric cylinder 3. At the same time, the feed port of the connecting hose 14 is closed to stop the slurry from entering, and the valve 20 is opened to discharge the separated slurry inside the separation tank 1 downward. Then the upward push electric cylinder 3 pushes the linkage bar 4 upward, and the linkage bar 4 drives the pull rod 5 upward. At the same time, the linkage bar 4 drives the downward push electric cylinder 8 upward, and the downward push electric cylinder 8 drives the socket block 9 to make the guide tube 10 move upward, so that the pull rod 5 drives the V-shaped deformable filter screen 6 to move upward, so that the bottom tip of the V-shaped deformable filter screen 6 begins to move upward, and the V-shaped deformable filter screen 6 can quickly contact the slurry inside the separation tank 1, thereby quickly filtering and separating a large amount of aluminum hydroxide, and a large amount of aluminum hydroxide is attached to the outer wall of the V-shaped deformable filter screen 6.

[0047] When the bottom tip of the V-shaped deformable filter screen 6 moves upward to the highest point, the entire V-shaped deformable filter screen 6 is in a vertically upward conical state, and the bottom tip of the V-shaped deformable filter screen 6 becomes the top tip position, and the support ring 7 is supported by the separation tank 1, and the support ring 7 supports the V-shaped deformable filter screen 6. In this way, a large amount of aluminum hydroxide filtered and separated by the inner wall of the V-shaped deformable filter screen 6 can be separated and moved to the inner wall of the outer ring receiving bucket 16 along the inclined surface of the outer wall of the V-shaped deformable filter screen 6 under the condition of the inclined surface of the outer wall of the V-shaped deformable filter screen 6, thereby quickly filtering and separating the aluminum hydroxide adsorbed on the outer wall of the V-shaped deformable filter screen 6, so that the aluminum hydroxide falls into the outer ring receiving bucket 16.

[0048] Step three, when the fixed force docking is quickly separated, the controller 21 starts the push-down electric cylinder 8 to push the concave pressure block 37 downward, and the concave pressure block 37 makes the sliding column 38 move downward, and the sliding column 38 drives the sliding groove sleeve 39 to move downward, and at the same time the sliding groove sleeve 39 makes the driven gear ring 35 move downward, and the driven gear ring 35 drives the groove ring 13 to move downward, and the groove ring 13 also drives the two rotating shafts 28 to move downward synchronously, and the two rotating shafts 28 respectively drive the two sleeve scrapers 29 to move downward synchronously, and the shoveling ring 41 slides downward along the outer wall of the pull rod 5, thereby shoveling the aluminum hydroxide adsorbed on the outer wall of the pull rod 5, so that the aluminum hydroxide can be separated from the pull rod 5 and tilted down to the inner wall of the outer ring receiving bucket 16, until the shoveling ring 41 contacts the support ring 42, the shoveling ring 41 will generate an extrusion force, and the shoveling ring 41 is squeezed on the pressure sensor 40. When the pressure value sensed by the pressure sensor 40 is the same as the pressure value set by the controller 21 , the push-down electric cylinder 8 is closed by the controller 21 .

[0049] Step 4: When the displacement fit is quickly separated, the reduction motor 25 is started through the controller 21, and the reduction motor 25 drives the bidirectional screw 24 to rotate. The bidirectional screw 24 drives the two threaded sleeves 23 to move away from each other under the action of the thread, and the distance between the two threaded sleeves 23 becomes larger, so that the threaded sleeve 23 moves left, and the other threaded sleeve 23 moves right. The threaded sleeve 23 drives the rack 26 to move left, and the rack 26 drives the linkage gear 27 to rotate counterclockwise. The linkage gear 27 drives the shaft 28 to rotate counterclockwise, and the shaft 28 rotates counterclockwise on the groove ring 13. At the same time, the shaft 28 drives the sleeve scraper 29 to rotate counterclockwise downward, while the other sleeve scraper 29 rotates clockwise downward. The two sleeve scrapers 29 are respectively squeezed on the inclined surface of the outer wall of the V-shaped deformation filter 6, and the shaft 28 will sense the torque through the torque sensor 30. At the same time, the groove ring 13 supports the support block 31, and the support block 31 supports the torque sensor 30, thereby increasing the stability of the torque sensor 30. When the torque value sensed by the torque sensor 30 is the same as the torque value set by the controller 21, the controller 21 turns off the shifting motor 34, thereby stopping the driven gear ring 35 from rotating.

[0050] In this way, the two sleeve scraping strips 29 can contact the outer wall inclined surface of the V-shaped deformed filter screen 6 according to the specified pressure, and then the drive shaft 33 is started by the displacement motor 34, the drive shaft 33 drives the transmission gear 32 to rotate, the transmission gear 32 drives the driven gear ring 35 to mesh and rotate, the driven gear ring 35 drives the two limit rings 36 to rotate synchronously, and the driven gear ring 35 drives the groove ring 13 to rotate, and the groove ring 13 drives the two rotating shafts 28 to rotate 360 ​​degrees forward. The rotating shaft 28 drives the sleeve scraping strips 29 to scrape and separate along the outer wall inclined surface of the V-shaped deformed filter screen 6, so that the aluminum hydroxide adsorbed on the outer wall of the V-shaped deformed filter screen 6 is quickly dropped to the inner wall of the outer ring loading bucket 16 under the action of gravity and scraping force, and the aluminum hydroxide is quickly filtered and separated from the slurry.

[0051] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A system for separating aluminum hydroxide by sedimentation of strong filtrate, comprising a separation tank, the outer wall of which is fixedly connected to a bracket, and a push-up electric cylinder is fixedly installed on one side of the bracket, characterized in that: The output end of the upward push electric cylinder is equipped with a timely removal and separation mechanism; The timely removal and separation mechanism includes a linkage bar fixedly installed at the output end of the upper push electric cylinder, and the lower surface of the linkage bar is fixedly connected to a pull rod, the bottom end of the pull rod is fixedly connected to a V-shaped deformable filter screen, the top of the V-shaped deformable filter screen is fixedly connected to a support ring, and the support ring is fixedly connected to the separation tank; one side of the pull rod is provided with a push-down electric cylinder fixedly connected to the linkage bar, and one side of the push-down electric cylinder is fixedly connected to a socket block; the inner wall of the socket block is fixedly connected to a guide tube, and the outer wall of the guide tube is fixedly connected to a fixed sleeve block, and two distance sensors are fixedly installed on the inner wall of the fixed sleeve block; the outer wall of the pull rod is slidably connected to a groove ring; one side of the groove ring is provided with a displacement fitting quick separation mechanism, and the displacement fitting quick separation mechanism includes a support frame fixedly arranged on one side of the groove ring; the inner wall of the support frame is slidably connected to two threaded sleeve blocks, and the inner wall of the threaded sleeve block is provided with a bidirectional screw, and the two threaded sleeve blocks are threadedly connected to the bidirectional screw, and the bidirectional screw is rotatably connected to the support frame; one end of the support frame is fixed A reduction motor is connected, which is used to drive the bidirectional screw to rotate. The two threads on the outer wall of the bidirectional screw are opposite and symmetrical. The bottom end of each threaded sleeve block is fixedly connected to a rack, and the inner wall of each rack is meshingly connected to a linkage gear; the inner wall of the linkage gear is fixedly connected to a rotating shaft, and the two rotating shafts are rotatably connected to the groove ring. The outer wall of the rotating shaft and a sleeve scraper strip are fixedly connected near the middle position thereof, and a torque sensor is fixedly installed at one end of one of the rotating shafts, and a support block is provided on the upper surface of the torque sensor, and the torque sensor and the groove ring are fixedly connected to the support block; a transmission gear is provided above the sleeve scraper strip, and a driving shaft is fixedly connected to the inner wall of the transmission gear, and a position shifting motor is fixedly installed on the top of the driving shaft, and a driven gear ring is meshingly connected to the outer wall of the transmission gear, and the driven gear ring is slidably connected to the pull rod, and the upper and lower surfaces of the transmission gear are slidably connected to limit rings, and the two limit rings are fixedly connected to the driven gear ring.

2. The system for separating aluminum hydroxide by strong filtrate sedimentation according to claim 1, characterized in that: A gap is arranged between the pull rod and the push-down electric cylinder, and the cross-section of the pull rod is circular.

3. The system for separating aluminum hydroxide by strong filtrate sedimentation according to claim 2 is characterized in that: The top end of the guide pipe is fixedly connected with a connecting hose, and the top end of the connecting hose is fixedly connected with a flange.

4. The system for separating aluminum hydroxide by strong filtrate sedimentation according to claim 3 is characterized in that: The outer wall of the separation tank is fixedly connected with an outer ring receiving bucket, and a receiving bucket is slidably connected to the lower surface of the outer ring receiving bucket. Both ends of the receiving bucket are bonded with iron blocks, and one side of each iron block is magnetically connected with an electromagnet; The electromagnet is fixedly connected to the separation tank, a valve is threadedly connected to the bottom end of the separation tank, and a controller is fixedly installed on one side of the upward push electric cylinder.

5. The system for separating aluminum hydroxide by strong filtrate sedimentation according to claim 4, characterized in that: The output end of the reduction motor is fixedly connected to the bidirectional screw, and the bidirectional screw and the support frame are both made of stainless steel; The two limiting rings are symmetrically arranged with respect to the transmission gear.

6. The system for separating aluminum hydroxide by strong filtrate sedimentation according to claim 5, characterized in that: The output end of the push-down electric cylinder is provided with a fixed force docking quick separation assembly, and the fixed force docking quick separation assembly includes a concave pressure block fixedly arranged at the output end of the push-down electric cylinder; The bottom end of the concave pressing block is fixedly connected with a sliding column, and the position changing motor is fixedly connected to the concave pressing block, the outer wall of the sliding column is slidably connected with a sliding groove sleeve, and the sliding groove sleeve is fixedly connected to the driven gear ring; A pressure sensor is fixedly installed at the bottom end of the groove ring, and a shoveling ring is fixedly connected to the output end of the pressure sensor. The shoveling ring is slidably connected to the pull rod.

7. The system for separating aluminum hydroxide by strong filtrate sedimentation according to claim 6, characterized in that: A support ring is fixedly connected to the outer wall of the pull rod near its bottom end, and the support ring is used for limiting and supporting the shoveling ring.

8. A method for using a system for separating aluminum hydroxide by settling with a strong filtrate, using the system for separating aluminum hydroxide by settling with a strong filtrate according to claim 7, characterized in that: The method comprises the following steps: Step 1: Strong filtrate sedimentation separation: the flange is docked on the slurry delivery pipeline containing aluminum hydroxide, and the slurry passes through a V-shaped deformed filter screen to achieve strong filtrate sedimentation filtration separation of aluminum hydroxide in the slurry; Step 2: Take out and separate in time. When the distance value sensed by the distance sensor is the same as the distance value set by the controller, the tip of the bottom end of the V-shaped filter moves upward to the highest point, and a large amount of aluminum hydroxide moves along the inclined surface of the outer wall of the V-shaped filter and separates and moves to the inner wall of the outer ring loading bucket; Step 3: Fixed force docking and quick separation. When the pressure value sensed by the pressure sensor is the same as the pressure value set by the controller, the controller closes the push-down electric cylinder; Step 4: Quick separation by displacement and fitting. The reduction motor drives the bidirectional screw to rotate. The two sleeve scrapers are respectively squeezed on the inclined surface of the outer wall of the V-shaped deformed filter screen, and the two sleeve scrapers rotate to make the aluminum hydroxide fall onto the inner wall of the outer ring receiving bucket.

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