Solid-liquid separation equipment for iron phosphate preparation

Abstract

The application discloses a solid-liquid separation equipment for preparing iron phosphate, and relates to the field of filter pressing equipment.The solid-liquid separation equipment comprises a filter press body, a plurality of filter plates and a water inlet pump are installed on the filter press body, support frames are installed on both sides of the filter plates, a water inlet pipe is installed on the water inlet pump, the water inlet pipe is connected with the filter plates, and a water inlet tank is installed on the water inlet pump.It is to be noted that, in the application, when the filter press is blocked or leaks, the water inlet tank is kept in a sinking state, the water inlet of the adapter pipe is closed, continuous blocking of the filter press is avoided, and problems such as damage or leakage of the filter plate of the filter press are avoided;at the same time, the plurality of filter plates can be opened synchronously, effective pressure relief can be realized, and the plurality of filter plates can be cleaned synchronously, the cleaning efficiency is effectively improved, the safe use of the filter press is ensured, and the processing efficiency of slurry is ensured.

Description

Technical Field

[0001] This invention relates to the field of filter press technology, and more particularly to a solid-liquid separation device for the preparation of ferric phosphate. Background Technology

[0002] Ferric phosphate, also known as high-ferric phosphate or orthophosphate, is an inorganic compound, a white or light red crystalline powder. It is soluble in hydrochloric acid and sulfuric acid, but insoluble in cold water and nitric acid. Its primary application is as a precursor for the cathode material of lithium iron phosphate batteries, which is currently the biggest driving force behind the production and demand of ferric phosphate. Secondly, it is used as a nutrient supplement of iron and phosphorus in agriculture and animal husbandry. Other applications include ceramics, glass additives, water treatment phosphorus removal agents, and certain catalytic fields. It should be noted that in the production process of ferric phosphate, especially in the wet synthesis process as a precursor for lithium battery cathode materials, a filter press is a crucial solid-liquid separation device, mainly used to process the ferric phosphate slurry generated after the reaction.

[0003] When a filter press is in use, blockages can easily occur due to material characteristics, improper operation, filter cloth problems, and equipment design defects. This can lead to a decrease in the performance and efficiency of the filter press, and the pressure may exceed the design limit due to blockage, potentially causing the filter plates to crack, or even resulting in material leakage, environmental risks, and a series of other problems. Therefore, how to quickly deal with blockages in a filter press is an urgent problem to be solved to ensure its safe use. Summary of the Invention

[0004] The purpose of this invention is to provide a solid-liquid separation device for the preparation of ferric phosphate, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A solid-liquid separation device for the preparation of ferric phosphate includes a filter press body, on which multiple filter plates and a water inlet pump are installed. Support frames are installed on both sides of the filter plates. A water inlet pipe is installed on the water inlet pump and connected to the filter plates. A water inlet tank is installed on the water inlet pump.

[0007] It also includes a clogging and settling sealing device, which is installed on the filter press body and is used to seal the inlet tank. The clogging and settling sealing device includes two transfer sealing boxes, which are respectively installed on the top and bottom sides of the inlet tank. One transfer sealing box is equipped with a transfer pipe, and the other transfer sealing box is connected to the inlet pump. Each of the two transfer sealing boxes has a pull-out sealing plate slidably installed inside. A transverse linkage plate is slidably installed on one side of the filter press body, and the transverse linkage plate is movably connected to the two pull-out sealing plates.

[0008] The filter press is equipped with a leakage settling sealing device, which is used to trigger the blockage settling sealing device. The leakage settling sealing device includes a leakage settling box, which is slidably installed on the filter press. A settling squeezing frame is installed on one side of the leakage settling box, which is used to squeeze the transverse linkage plate to move.

[0009] Furthermore, in a preferred embodiment of the present invention, the blockage settling sealing device further includes two rotating push-pull rods, each of which is equipped with a central rotating shaft. The two central rotating shafts are respectively rotatably mounted on the top and bottom sides of the water inlet tank, and the two rotating push-pull rods are respectively movably mounted on the two pull-out sealing plates.

[0010] Two lifting and pulling frames are slidably installed on the transverse linkage plate, and the two lifting and pulling frames are respectively movably installed on the two rotating push-pull rods.

[0011] Furthermore, in a preferred embodiment of the present invention, a pushing arc-shaped block is installed on the transverse linkage plate, and the water inlet tank moves down to squeeze the pushing arc-shaped block, thereby pushing the transverse linkage plate to move;

[0012] The filter press body is provided with a transverse pull-out groove, and a transverse pull-out rod is installed on one side of the transverse linkage plate. One end of the transverse pull-out rod extends into the transverse pull-out groove and is equipped with a retraction spring, which is installed on the inner wall of the transverse pull-out groove.

[0013] Furthermore, in a preferred embodiment of the present invention, four settling sleeves are installed on the top side of the filter press body, and settling pressure rods are movably installed in each of the four settling sleeves, and the four settling pressure rods are all installed on the water inlet tank;

[0014] A settlement spring is installed on the bottom side of the settlement pressure rod, and the bottom end of the settlement spring is installed on the bottom inner wall of the settlement sleeve.

[0015] Furthermore, in a preferred embodiment of the present invention, the leakage settling sealing device further includes a dispersing rod, the dispersing rod being mounted on the settling extrusion frame, and a plurality of dispersing frames being mounted on the dispersing rod;

[0016] The filter press body is provided with a settling chute, the settling extrusion frame is slidably installed in the settling chute, and a stop switch is installed on the bottom inner wall of the settling chute, the stop switch being electrically connected to the filter press body.

[0017] Furthermore, in a preferred embodiment of the present invention, a support spring is installed on the bottom inner wall of the settling chute, the support spring is installed on the settling extrusion frame, and an extrusion push shaft is installed on the settling extrusion frame;

[0018] An external pulling and pressing plate is installed on one side of the transverse linkage plate. The movement of the settling and pressing frame is achieved by pressing the external pulling and pressing plate through the pressing push shaft, which in turn drives the transverse linkage plate to move.

[0019] Furthermore, in a preferred embodiment of the present invention, a centralized cleaning device is also included, which is installed on a plurality of the filter plates and is used to clean the plurality of filter plates simultaneously;

[0020] The centralized cleaning device includes multiple mounting frames, which are respectively mounted on multiple filter plates. A flushing strip is movably mounted on each mounting frame. Multiple flushing holes are opened on one side of the flushing strip, and a high-pressure water pipe is connected to the flushing strip. The flushing strip is used to flush the filter plates.

[0021] Furthermore, in a preferred embodiment of the present invention, a T-shaped lifting frame is slidably mounted on one side of the mounting frame, and the flushing strip is mounted on the T-shaped lifting frame;

[0022] A rotating lifting frame is rotatably mounted on one side of the mounting frame. Two lifting mounting shafts are mounted on the rotating lifting frame, and one of the lifting mounting shafts is movably mounted inside the T-shaped lifting frame.

[0023] Furthermore, in a preferred embodiment of the present invention, a pull sleeve is rotatably mounted within the mounting frame, and a lifting mounting shaft is mounted on the pull sleeve;

[0024] A positioning shaft is installed on the inner wall of the mounting frame, and the pull sleeve is rotatably mounted on the positioning shaft. A torsion spring is installed on the positioning shaft, and the torsion spring is installed on the inner wall of the pull sleeve.

[0025] Furthermore, in a preferred embodiment of the present invention, an end frame is installed on the filter press body, and a support mounting seat is installed on both the end frame and the plurality of filter plates, with two adjacent support mounting seats being staggered.

[0026] The support mounting base has a movable groove, a pull bar is movably installed in the movable groove, a pull shaft is installed on the pull bar, an arc-shaped pull extrusion groove is provided on the pull rotating sleeve, and the bottom end of the pull shaft extends into the pull extrusion groove.

[0027] The beneficial effects of the solid-liquid separation device for ferric phosphate preparation proposed in this invention are:

[0028] In this invention, by setting up a blockage settling and sealing device, if the filter press becomes blocked during the processing of slurry, the slurry cannot be discharged in time. Therefore, the water inlet tank remains in a submerged state, and the water inlet of the transfer pipe can be effectively sealed to prevent the filter press from becoming continuously blocked, thereby avoiding problems such as damage or leakage of the filter plates.

[0029] Furthermore, in this invention, by setting up a leakage settling sealing device, when multiple filter plates leak, a large amount of slurry leaks out and falls directly into the leakage settling box, causing the settling box to sink under pressure. This allows the filter press to automatically shut down and the multiple filter plates to separate synchronously in a timely manner, ensuring that the slurry can be discharged quickly and avoiding damage to the filter plates. At the same time, when the settling and pressing frame moves down, the liquid inlet can be automatically shut off, preventing the continuous injection of a large amount of slurry from causing pollution.

[0030] Furthermore, in this invention, by setting up a centralized cleaning device, when multiple filter plates are separated, the rotating lifting frame drives the T-shaped lifting frame to move, and the T-shaped lifting frame drives the flushing strip to move down, so that the flushing strip is no longer closed, and clean water is sprayed out through multiple flushing holes to flush the filter plates, thereby achieving the purpose of cleaning multiple filter plates simultaneously and effectively improving the cleaning efficiency. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural schematic diagram of a solid-liquid separation device for the preparation of iron phosphate provided in an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram illustrating the connection between a transfer enclosure and a leakage settling box in a solid-liquid separation device for the preparation of iron phosphate, as provided in an embodiment of the present invention.

[0033] Figure 3This is a partial structural diagram illustrating the connection between the inlet tank and the transfer sealed box of a solid-liquid separation device for the preparation of iron phosphate, as provided in an embodiment of the present invention.

[0034] Figure 4 A solid-liquid separation device for the preparation of iron phosphate is provided in this embodiment of the invention. Figure 3 A schematic diagram of the structure of part A;

[0035] Figure 5 A schematic diagram of a partial fracture structure in the connection between the pull-out sealing plate and the transverse linkage plate of a solid-liquid separation device for the preparation of iron phosphate, provided in an embodiment of the present invention;

[0036] Figure 6 This is a partial cross-sectional view of the connection between the settling pressure rod and the settling sleeve in a solid-liquid separation device for the preparation of iron phosphate, provided in an embodiment of the present invention.

[0037] Figure 7 This is a partial cross-sectional view of the connection between the transverse linkage plate and the transverse pull-out rod in a solid-liquid separation device for the preparation of ferric phosphate, as provided in an embodiment of the present invention.

[0038] Figure 8 A schematic diagram of the fracture structure of the connection between the dispersing tie rod and the dispersing frame in a solid-liquid separation device for the preparation of iron phosphate, provided in an embodiment of the present invention;

[0039] Figure 9 A schematic diagram illustrating the connection between the mounting frame and end frame of a solid-liquid separation device for the preparation of iron phosphate, provided in an embodiment of the present invention.

[0040] Figure 10 This is a partial structural diagram illustrating the connection between a T-shaped lifting frame and a rotating lifting frame, etc., in a solid-liquid separation device for the preparation of iron phosphate, provided in an embodiment of the present invention.

[0041] Figure 11 This is a partial cross-sectional view of the connection between the rinsing bar and the inlet pipe, etc., of a solid-liquid separation device for the preparation of ferric phosphate, provided in an embodiment of the present invention.

[0042] Figure 12 This is a partial cross-sectional view of the connection between the support mounting base and the pull bar, etc., of a solid-liquid separation device for the preparation of iron phosphate, provided in an embodiment of the present invention.

[0043] Figure 13 This is a partial structural diagram illustrating the connection between the pulling shaft and the pulling rotating sleeve in a solid-liquid separation device for the preparation of iron phosphate, as provided in an embodiment of the present invention.

[0044] In the diagram: 1-Filter press body; 2-Filter plate; 3-Support frame; 4-Inlet pump; 5-Inlet pipe; 6-Inlet tank; 7-Clogged settling sealing device; 701-Transfer sealing box; 702-Transfer pipe; 703-Pull-out sealing plate; 704-Horizontal movement linkage plate; 705-Horizontal movement pull-out groove; 706-Horizontal movement pull-out rod; 707-Retraction spring; 708-Pushing arc block; 709-Lifting pull frame; 710-Rotating push-pull rod; 711-Transfer shaft; 712-Settling pressure rod; 713-Settling sleeve; 714-Settling spring; 8-Leakage settling sealing device; 801-Leakage settling box; 802-Settling chute; 8 03-Support spring; 804-Stop switch; 805-Settling extrusion frame; 806-Extrusion push shaft; 807-Dispersion pull rod; 808-Dispersion frame; 809-Outer pull extrusion plate; 9-Centralized cleaning device; 901-Mounting frame; 902-T-type lifting frame; 903-Flushing strip; 904-High pressure water pipe; 905-Rotating lifting frame; 906-Lifting mounting shaft; 907-End frame; 908-Support mounting seat; 909-Moving groove; 910-Pull bar; 911-Pull shaft; 912-Pull rotating sleeve; 913-Pull extrusion groove; 914-Positioning shaft; 915-Torsion spring; 916-Flushing hole. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] Furthermore, in the description of this invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] Furthermore, terms such as "horizontal," "vertical," and "perpendicular" do not imply that components must be absolutely vertical, but rather that they can be slightly tilted. For example, "vertical" simply means that its direction is more vertical relative to "horizontal," not that the structure must be completely vertical, but can be slightly tilted.

[0050] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] Please refer to the attached instruction manual. Figures 1-13 The present invention provides a solid-liquid separation device for the preparation of iron phosphate, which includes a filter press body 1, a plurality of filter plates 2 and a water inlet pump 4 installed on the filter press body 1, and support frames 3 installed on both sides of the filter plates 2. The water inlet pump 4 is equipped with a water inlet pipe 5, which is connected to the filter plates 2, and a water inlet tank 6 is installed on the water inlet pump 4.

[0052] Further, please refer to the appendix to the instruction manual. Figures 2-7 The solid-liquid separation device for the preparation of ferric phosphate provided in this embodiment of the invention further includes a blockage settling sealing device 7, which is installed on the filter press body 1 and is used to seal the inlet tank 6. Specifically, the blockage settling sealing device 7 includes two transfer sealing boxes 701, which are respectively installed on the top and bottom sides of the inlet tank 6. One transfer sealing box 701 is equipped with a transfer pipe 702, and the other transfer sealing box 701 is connected to the inlet pump 4. Pull-out sealing plates 703 are slidably installed in both transfer sealing boxes 701, and a transverse linkage plate 704 is slidably installed on one side of the filter press body 1. The transverse linkage plate 704 is movably connected to the two pull-out sealing plates 703.

[0053] It should be noted that, in this embodiment of the invention, when the filter press processes the slurry, when the slurry in the inlet tank 6 reaches a certain weight, one transfer sealing box 701 is closed and the other transfer sealing box 701 is opened to allow slurry injection. If the filter press becomes clogged, the slurry cannot be discharged in time, thus keeping the inlet tank 6 in a submerged state, which can effectively seal the water inlet of the transfer pipe 702 and prevent the filter press from becoming continuously clogged.

[0054] More specifically, in this embodiment of the invention, a leakage settling sealing device 8 is installed on the filter press body 1. The leakage settling sealing device 8 is used to trigger the blockage settling sealing device 7. The leakage settling sealing device 8 includes a leakage settling box 801, which is slidably installed on the filter press body 1. A settling extrusion frame 805 is installed on one side of the leakage settling box 801. The settling extrusion frame 805 is used to extrude the transverse linkage plate 704. It should be noted that in this embodiment of the invention, when multiple filter plates 2 leak, the leakage settling box 801 is subjected to force and sinks, thereby causing multiple dispersion frames 808 to push multiple support frames 3 to move, separating multiple filter plates 2 in a timely and synchronous manner, ensuring that the slurry can be discharged quickly. At the same time, when the settling extrusion frame 805 moves down, it drives the extrusion push shaft 806 to move. The extrusion push shaft 806 pushes the outer pull extrusion plate 809 to move, causing the outer pull extrusion plate 809 to drive the transverse linkage plate 704 to move, thereby achieving the purpose of automatically closing the liquid inlet.

[0055] Please continue to refer to the instruction manual appendix. Figures 2-7 Furthermore, the solid-liquid separation device for the preparation of ferric phosphate provided in this embodiment of the invention includes two rotating push-pull rods 710, each of which is equipped with a central rotating shaft 711. The two central rotating shafts 711 are rotatably mounted on the top and bottom sides of the water inlet tank 6, respectively, and the two rotating push-pull rods 710 are movably mounted on two pull-out sealing plates 703, respectively.

[0056] Furthermore, two lifting and pulling frames 709 are slidably mounted on the transverse linkage plate 704, and the two lifting and pulling frames 709 are respectively movably mounted on two rotating push-pull rods 710. It should be noted that, in this embodiment of the invention, when the transverse linkage plate 704 moves, the movement of the transverse linkage plate 704 is achieved by the two lifting and pulling frames 709 pulling the two rotating push-pull rods 710 to rotate. The rotating push-pull rods 710 rotate on the central pivot 711, and at the same time, the rotating push-pull rods 710 drive the pull-out sealing plate 703 to move, thereby realizing the alternating movement of the two pull-out sealing plates 703.

[0057] More specifically, in this embodiment of the invention, a pushing arc block 708 is installed on the transverse linkage plate 704. The water inlet tank 6 moves down to squeeze the pushing arc block 708, which is used to push the transverse linkage plate 704 to move. In addition, a transverse pull-out groove 705 is opened on the filter press body 1. A transverse pull-out rod 706 is installed on one side of the transverse linkage plate 704. One end of the transverse pull-out rod 706 extends into the transverse pull-out groove 705 and is equipped with a return spring 707. The return spring 707 is installed on the inner wall of the transverse pull-out groove 705. It should be noted that in this embodiment of the invention, when the weight of the water inlet tank 6 reaches the specified weight, the push arc block 708 is pushed to move, so that the push arc block 708 pushes the horizontal linkage plate 704 to move. The horizontal linkage plate 704 moves horizontally in the horizontal pull-out groove 705 through the horizontal pull-out rod 706, and causes the retraction spring 707 to be stretched by force, thereby realizing the alternating opening and closing of the two transfer closed boxes 701.

[0058] More specifically, in this embodiment of the invention, four settling sleeves 713 are installed on the top side of the filter press body 1, and settling pressure rods 712 are movably installed inside each of the four settling sleeves 713. All four settling pressure rods 712 are mounted on the inlet tank 6. Settling springs 714 are installed on the bottom side of each settling pressure rod 712, with the bottom end of each spring mounted on the inner wall of the bottom side of the settling sleeve 713. It should be noted that in this embodiment of the invention, when the inlet tank 6 sinks, the four settling pressure rods 712 move downwards within the four settling sleeves 713, causing the four settling springs 714 to be stressed. Therefore, the rebound force of the four settling springs 714 helps the inlet tank 6 to reset.

[0059] Please refer to the instruction manual attached. Figures 2-3 and Figures 7-8 Furthermore, the solid-liquid separation device for the preparation of iron phosphate provided in this embodiment of the invention includes a leakage settling sealing device 8 that further includes a dispersing rod 807, which is mounted on a settling extrusion frame 805 and has multiple dispersing frames 808 mounted on it.

[0060] Furthermore, a settling trough 802 is provided on the filter press body 1, and a settling extrusion frame 805 is slidably installed in the settling trough 802. A stop switch 804 is installed on the bottom inner wall of the settling trough 802, and the stop switch 804 is electrically connected to the filter press body 1. It should be noted that, in this embodiment of the invention, when the settling extrusion frame 805 moves downward, the stop switch 804 is activated to stop the filter press. At the same time, the dispersing rod 807 drives multiple dispersing frames 808 to move, which can simultaneously drive multiple support frames 3 to separate, thereby achieving the purpose of opening multiple filter plates 2 at the same time, and quickly realizing the discharge of slurry.

[0061] More specifically, in this embodiment of the invention, a support spring 803 is installed on the inner bottom wall of the settling trough 802. The support spring 803 is mounted on the settling compression frame 805, and a compression push shaft 806 is installed on the settling compression frame 805. In addition, an outer pulling compression plate 809 is installed on one side of the transverse linkage plate 704. The settling compression frame 805 moves by pressing the outer pulling compression plate 809 through the compression push shaft 806, which drives the transverse linkage plate 704 to move. It should be noted that in this embodiment of the invention, when the settling compression frame 805 is subjected to force and sinks, it moves vertically within the settling trough 802, causing the support spring 803 to contract. Furthermore, when the settling compression frame 805 sinks, it presses the outer pulling compression plate 809 through the compression push shaft 806, thereby driving the transverse linkage plate 704 to move, achieving the purpose of keeping the water inlet tank 6 in a sinking position.

[0062] Please refer to the instruction manual attached. Figures 9-13 Furthermore, the solid-liquid separation device for the preparation of ferric phosphate provided in this embodiment of the invention also includes a centralized cleaning device 9, which is installed on multiple filter plates 2 and is used to clean the multiple filter plates 2 simultaneously.

[0063] Specifically, the centralized cleaning device 9 includes multiple mounting frames 901, which are respectively mounted on multiple filter plates 2. A rinsing strip 903 is movably mounted on each mounting frame 901. Multiple rinsing holes 916 are provided on one side of the rinsing strip 903. A high-pressure water pipe 904 is connected to the rinsing strip 903, which is used to rinse the filter plates 2. It should be noted that in this embodiment of the invention, when blockage occurs, the multiple filter plates 2 can be quickly separated, and the T-shaped lifting frame 902 drives the rinsing strip 903 downwards, thereby unblocking the rinsing strip 903 and allowing clean water to spray out through the multiple rinsing holes 916 to rinse the filter plates 2, achieving the purpose of simultaneous cleaning of multiple filter plates 2 and effectively improving cleaning efficiency.

[0064] More specifically, in this embodiment of the invention, a T-shaped lifting frame 902 is slidably mounted on one side of the mounting frame 901, and a flushing strip 903 is mounted on the T-shaped lifting frame 902. Furthermore, a rotating lifting frame 905 is rotatably mounted on one side of the mounting frame 901, and two lifting mounting shafts 906 are mounted on the rotating lifting frame 905. One lifting mounting shaft 906 is movably mounted within the T-shaped lifting frame 902. It should be noted that in this embodiment of the invention, when the rotating lifting frame 905 rotates, it rotates on one lifting mounting shaft 906, while simultaneously driving the T-shaped lifting frame 902 to move via the other lifting mounting shaft 906, thus achieving the purpose of synchronously driving the T-shaped lifting frame 902 to move when the rotating lifting frame 905 rotates.

[0065] Please continue to refer to the instruction manual appendix. Figures 9-13 More specifically, in this embodiment of the invention, a pull sleeve 912 is rotatably mounted inside the mounting frame 901, and a lifting mounting shaft 906 is mounted on the pull sleeve 912;

[0066] Furthermore, a positioning shaft 914 is installed on the inner wall of the mounting frame 901. The pull sleeve 912 is rotatably mounted on the positioning shaft 914, and a torsion spring 915 is installed on the positioning shaft 914. The torsion spring 915 is installed on the inner wall of the pull sleeve 912. It should be noted that, in this embodiment of the invention, when the pull sleeve 912 rotates, it rotates on the positioning shaft 914, causing the torsion spring 915 to be under force. Therefore, the rebound force of the torsion spring 915 can help the pull sleeve 912 to reset.

[0067] More specifically, in this embodiment of the invention, an end frame 907 is installed on the filter press body 1, and a support mounting seat 908 is installed on both the end frame 907 and multiple filter plates 2, with adjacent support mounting seats 908 being staggered; in addition, a movable groove 909 is provided on the support mounting seat 908, a pull bar 910 is movably installed in the movable groove 909, a pull shaft 911 is installed on the pull bar 910, and an arc-shaped pull extrusion groove 913 is provided on the pull rotating sleeve 912, with the bottom end of the pull shaft 911 extending into the pull extrusion groove 913. It should be noted that, in this embodiment of the invention, when multiple filter plates 2 are pulled apart, the filter plates 2 drive the pull bar 910 to move via the pull shaft 911. The pull bar 910 moves within the movable groove 909, and when it moves to a certain position, the pull bar 910 is blocked. The pull bar 910 moves within the pull extrusion groove 913 via the pull shaft 911, causing the pull rotating sleeve 912 to rotate, thereby driving the T-shaped lifting frame 902 to move.

[0068] In summary, the working principle of the solid-liquid separation device for the preparation of iron phosphate provided in this embodiment of the invention is as follows:

[0069] When the filter press processes the slurry, the slurry is fed into the inlet tank 6 through the transfer pipe 702, then into the inlet pump 4, and then into the inlet pipe 5, before being fed into multiple filter plates 2 for filtration. When the slurry in the inlet tank 6 reaches a certain weight, the four settling rods 712 move within the four settling sleeves 713, causing the four settling springs 714 to be stressed. Simultaneously, when the weight of the inlet tank 6 reaches a specified weight, it pushes the pushing arc block 708 to move, causing the pushing arc block 708 to push the transverse linkage. The moving plate 704 moves, and the transverse linkage plate 704 moves horizontally within the transverse pull-out groove 705 via the transverse pull-out rod 706, causing the return spring 707 to be stretched. Simultaneously, the movement of the transverse linkage plate 704 pulls two rotating push-pull rods 710 via two lifting pull frames 709. The rotating push-pull rods 710 rotate on the central rotating shaft 711, and simultaneously drive the pull-out sealing plate 703 to move. This allows one intermediate sealing box 701 to close and the other intermediate sealing box 701 to open when the inlet tank 6 is full, facilitating slurry injection. It should be noted that if the filter press becomes clogged, preventing timely slurry discharge, the inlet tank 6 remains submerged, effectively sealing the water inlet of the transfer pipe 702 and preventing continuous clogging of the filter press.

[0070] It should be further explained that when multiple filter plates 2 leak, a large amount of slurry leaks out and falls directly into the leakage settling box 801. This causes the leakage settling box 801 to sink under pressure. The leakage settling box 801 slides vertically within the settling chute 802 via the settling compression frame 805, which in turn forces the support spring 803. Simultaneously, as the settling compression frame 805 moves downward, it compresses the shut-off switch 804, shutting down the filter press. Furthermore, the settling compression frame 805 pulls... When the dispersing rod 807 moves downward, it drives multiple dispersing frames 808 to move, which in turn pushes multiple support frames 3 to move, thus separating multiple filter plates 2 in a timely and synchronous manner to ensure that the slurry can be discharged quickly. In addition, when the settling and extruding frame 805 moves downward, it drives the extrusion push shaft 806 to move, which in turn pushes the outer extrusion plate 809 to move, which in turn drives the transverse linkage plate 704 to move, thereby achieving the purpose of automatically closing the liquid inlet.

[0071] Furthermore, when the multiple filter plates 2 are separated, the filter plates 2 drive the pull bar 910 to move via the pull shaft 911. The pull bar 910 moves within the movable groove 909, and when it reaches a certain position, it is blocked. At this time, the pull bar 910 moves within the pull compression groove 913 via the pull shaft 911, causing the pull rotating sleeve 912 to rotate. The pull rotating sleeve 912 rotates on the positioning shaft 914, causing the torsion spring 915 to be stressed. Simultaneously, the rotation of the pull rotating sleeve 912 drives... A lifting mounting shaft 906 rotates, causing the lifting mounting shaft 906 to drive the rotating lifting frame 905 to rotate. When the rotating lifting frame 905 rotates, it drives the T-shaped lifting frame 902 to move through another lifting mounting shaft 906. The T-shaped lifting frame 902 drives the flushing strip 903 to move downward, so that the flushing strip 903 is no longer blocked, and clean water is sprayed out through multiple flushing holes 916 to flush the filter plate 2, thereby achieving the purpose of cleaning multiple filter plates 2 simultaneously and effectively improving cleaning efficiency.

[0072] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A solid-liquid separation apparatus for iron phosphate production, characterized by, It includes filter press body, a plurality of filter plates and water inlet pump are installed on the filter press body, and support frames are installed on both sides of the filter plates, a water inlet pipe is installed on the water inlet pump, the water inlet pipe is connected with the filter plate, and a water inlet tank is installed on the water inlet pump; It also includes a blockage and sedimentation closing device, which is installed on the filter press body and used for closing the water inlet tank; the blockage and sedimentation closing device includes two transfer closing boxes, the two transfer closing boxes are respectively installed on the top side and the bottom side of the water inlet tank, a transfer pipe is installed on one of the transfer closing boxes, the other transfer closing box is connected with the water inlet pump, pull-out closing plates are slidably installed in the two transfer closing boxes, and a horizontal movement linkage plate is slidably installed on one side of the filter press body and movably connected with the two pull-out closing plates; A leakage and sedimentation closing device is installed on the filter press body and used for triggering the blockage and sedimentation closing device; the leakage and sedimentation closing device includes a leakage and sedimentation box, which is slidably installed on the filter press body, and a sedimentation extrusion frame is installed on one side of the leakage and sedimentation box and used for extruding the horizontal movement linkage plate to move; The blockage and sedimentation closing device also includes two rotating push-pull rods, transfer shafts are installed on the two rotating push-pull rods, and the two transfer shafts are respectively rotatably installed on the top side and the bottom side of the water inlet tank, and the two rotating push-pull rods are movably installed on the two pull-out closing plates, respectively; Two lifting pull frames are slidably installed on the horizontal movement linkage plate, and the two lifting pull frames are movably installed on the two rotating push-pull rods, respectively; A push-extrusion arc-shaped block is installed on the horizontal movement linkage plate, the water inlet tank moves downward to extrude the push-extrusion arc-shaped block, and the push-extrusion arc-shaped block is used for pushing the horizontal movement linkage plate to move; A horizontal movement pulling-out slot is formed in the filter press body, a horizontal movement pulling-out rod is installed on one side of the horizontal movement linkage plate, one end of the horizontal movement pulling-out rod extends into the horizontal movement pulling-out slot, and a retracting spring is installed on the inner wall of the horizontal movement pulling-out slot; Four sedimentation sleeves are installed on the top side of the filter press body, sedimentation pressure rods are movably installed in the four sedimentation sleeves, and the four sedimentation pressure rods are installed on the water inlet tank; A sedimentation spring is installed on the bottom side of the sedimentation pressure rod, and the bottom end of the sedimentation spring is installed on the inner wall of the bottom side of the sedimentation sleeve.

2. The solid-liquid separation apparatus for the preparation of iron phosphate according to claim 1, characterized in that, The leakage and sedimentation closing device also includes a dispersion pull rod, which is installed on the sedimentation extrusion frame and provided with a plurality of dispersion frames; A sedimentation sliding groove is formed in the filter press body, the sedimentation extrusion frame is slidably installed in the sedimentation sliding groove, a closing switch is installed on the inner wall of the bottom side of the sedimentation sliding groove, and the closing switch is electrically connected with the filter press body.

3. A solid-liquid separation apparatus for iron phosphate production according to claim 2, characterized in that, A support spring is installed on the inner wall of the bottom side of the sedimentation sliding groove, the support spring is installed on the sedimentation extrusion frame, and an extrusion push shaft is installed on the sedimentation extrusion frame; One side of the transverse movement linkage plate is provided with an outer pull extrusion plate, and the sinking extrusion frame moves through the extrusion push shaft to extrude the outer pull extrusion plate to drive the transverse movement linkage plate to move.

4. The solid-liquid separation apparatus for the preparation of iron phosphate according to claim 1, characterized in that, The centralized cleaning device is installed on the plurality of filter plates, and is used for synchronously cleaning the plurality of filter plates. The centralized cleaning device comprises a plurality of installation frames, the installation frames are respectively installed on the plurality of filter plates, and a flushing strip is movably installed on the installation frame.

5. A solid-liquid separation apparatus for iron phosphate production according to claim 4, characterized in that, One side of the installation frame is slidably provided with a T-shaped lifting frame, and the flushing strip is installed on the T-shaped lifting frame. One side of the installation frame is rotatably provided with a rotating lifting frame, two lifting installation shafts are installed on the rotating lifting frame, and one lifting installation shaft is movably installed in the T-shaped lifting frame.

6. A solid-liquid separation apparatus for iron phosphate production according to claim 5, characterized in that, The installation frame is rotatably provided with a pulling rotating sleeve, and one lifting installation shaft is installed on the pulling rotating sleeve. A positioning shaft is installed on the inner wall of the installation frame, the pulling rotating sleeve is rotatably installed on the positioning shaft, a torsional spring is installed on the positioning shaft, and the torsional spring is installed on the inner wall of the pulling rotating sleeve.

7. A solid-liquid separation apparatus for iron phosphate production according to claim 6, characterized in that, An end frame is installed on the filter press body, a support mounting seat is installed on each of the plurality of filter plates, and two adjacent support mounting seats are staggered. An active slot is formed in the support mounting seat, a pulling strip is movably installed in the active slot, a pulling shaft is installed on the pulling strip, an arc-shaped pulling extrusion slot is formed in the pulling rotating sleeve, and the bottom end of the pulling shaft extends into the pulling extrusion slot.

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