Filtering and purifying integrated device

Abstract

The application discloses a filter-pressing and purifying integrated device, and belongs to the technical field of solid-liquid separation devices.The filter-pressing and purifying integrated device comprises a tank body and a separation mechanism arranged below the tank body, the separation mechanism is used for filtering a solution in the tank body, the separation mechanism comprises a separation bin and a pressure regulating assembly, a filter screen is arranged in the separation bin, and the pressure regulating assembly is used for forming a pressure difference on both sides of the filter screen to promote the solution to pass through the filter screen.The filter-pressing and purifying integrated device provided by the application can pass mixed liquid into the separation bin first, then intercept impurity particles in the mixed liquid in the separation bin by using the filter screen, so that filter residues can be concentrated and stored in the separation bin, the pressure regulating assembly arranged can form a pressure difference between spaces on both sides of the filter screen in the separation bin, thereby promoting the liquid to pass through the filter screen, ensuring the efficiency of solid-liquid separation, and the content of liquid in the filter residues is reduced, thereby reducing waste.

Description

Technical Field

[0001] This invention relates to the field of solid-liquid separation device technology, and specifically discloses an integrated pressure filtration and purification device. Background Technology

[0002] Electrolytic manganese dioxide is mainly used in the battery and new energy industries. It is a key raw material for manufacturing high-power, high-discharge dry batteries, power batteries, and magnetic materials and components for the electronics industry. It is produced by electrolysis of manganese sulfate. The preparation of manganese sulfate can be divided into manganese carbonate ore method, manganese oxide reduction roasting method and two-ore method according to different raw materials. All three methods involve the purification step (neutralization to remove iron and aluminum, sulfidation to remove heavy metals, and fluorination to remove calcium and magnesium). That is, through chemical reaction, soluble impurity ions in the solution are converted into insoluble precipitates and separated. Among the common separation methods, one is to directly pump the solution after reaction into a filter for filtration, and the other is to directly filter it by setting a filter screen on the reaction tank.

[0003] For example, announcement number CN102226234B, announcement date 2012-11-07, discloses an integrated reactor suitable for purifying and removing impurities from leaching solution of pyrolusite. The main structure is that the reactor cylinder is divided into upper and lower parts by a partition layer component set inside the cylinder. The upper part is a desorption reaction zone, and the lower part is a precipitation separation zone. The desorption reaction zone is provided with a filter layer component that divides the reaction zone into a main reaction zone and a filtrate zone. The partition layer component is designed with a channel connecting the main reaction zone and the precipitation separation zone. The main reaction zone is provided with a stirrer, and the feed pipe outlet is located in the main reaction zone. The filtrate zone cylinder is provided with a filtrate discharge pipe at the upper end of the cylinder. The precipitation separation zone cylinder is provided with a precipitation outlet near the bottom of the cylinder.

[0004] Existing purification devices, including the aforementioned patents, while having large-area filters that can improve the speed of solid-liquid separation, leave filter residue in various parts of the tank, making them difficult to clean, and the filter residue contains a large amount of solution that is not separated. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated pressure filtration and purification device.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A pressure filtration and purification integrated device includes a tank and a separation mechanism disposed below the tank. The separation mechanism is used for filtering the solution in the tank. The separation mechanism includes a separation chamber and a pressure regulating component. A filter screen is disposed in the separation chamber. The pressure regulating component is used to create a pressure difference on both sides of the filter screen to promote the solution to pass through the filter screen.

[0008] The pressure regulating component of the above-mentioned device includes a pressure plate disposed in the separation chamber. The pressure plate is driven to move within the separation chamber and squeezes the solution toward the side where the filter screen is located.

[0009] The above-mentioned device has a connecting pipe fixed to the bottom of the tank. The end of the connecting pipe away from the tank is fixedly connected to the pressure plate. A liquid passage hole is opened on the pressure plate at the position corresponding to the connecting plate. A blocking component is also provided on the pressure plate to block the liquid passage hole to prevent backflow.

[0010] The aforementioned device includes a first pipe and a second pipe, which are dynamically sealed together.

[0011] The aforementioned device includes a float plate, which is installed on one side of the pressure plate corresponding to the filter screen, and the float plate has a blocking state that can block the liquid passage holes.

[0012] The aforementioned device has a mounting groove on the pressure plate corresponding to the position of the float. The float, which is in a shielded state, is placed in the mounting groove. The shielding component also includes a stop block, which is driven to shield the float within the mounting groove.

[0013] In the aforementioned device, an adjusting component is installed on the separation chamber. The pressure plate is driven to move axially along the separation chamber and has a first stroke and a second stroke. During the first stroke, the distance between the stop block and the pressure plate is the largest. During the second stroke, the stop block is driven to move to contact the pressure plate to block the placement slot.

[0014] The aforementioned device includes an adjusting block slidably mounted on a separation chamber, a first spring provided on the separation chamber to maintain the relative position of the adjusting block and the separation chamber, a wedge rotatably mounted on the adjusting block, and a torsion spring provided on the adjusting block to maintain the wedge in a horizontal state, an adjusting rod fixedly connected to a stop block, the adjusting rod passing through the pressure plate along the axial direction of the pressure plate, and a fixing block fixedly connected to the end of the adjusting rod away from the stop block.

[0015] The above-mentioned device includes a first compartment and a second compartment. The first compartment is fixedly installed below the tank body, while the second compartment is rotatably connected to the first compartment, and a filter screen is installed on the inner wall of the second compartment.

[0016] The aforementioned device has a second spring mounted on the adjusting rod to maintain the relative position of the pressure plate and the stop. When the second spring is in its natural state, the distance between the stop and the pressure plate is at its maximum. The pressure plate is also equipped with a locking element for locking the stop.

[0017] In the above technical solution, the pressure filtration and purification integrated device provided by the present invention first introduces the mixed liquid into the separation chamber, and then uses a filter screen to intercept the impurity particles in the mixed liquid in the separation chamber, so that the filter residue can be concentrated and stored in the separation chamber. The pressure regulating component can create a pressure difference in the space on both sides of the filter screen in the separation chamber, thereby promoting the liquid to pass through the filter screen, ensuring the efficiency of solid-liquid separation, and reducing the liquid content in the filter residue, thereby reducing waste. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the structure provided for an embodiment of the present invention;

[0020] Figure 2 A front view provided for an embodiment of the present invention;

[0021] Figure 3 This is a partial sectional view of the tank provided in an embodiment of the present invention;

[0022] Figure 4 This is an enlarged schematic diagram of the separation chamber provided in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram showing the positional relationship between the adjusting member and the adjusting rod provided in an embodiment of the present invention;

[0024] Figure 6 A cross-sectional view of the separation chamber when the float is in the open state, as provided in an embodiment of the present invention;

[0025] Figure 7 This is an elevation view of the pressure plate when the float is in the open state, as provided in an embodiment of the present invention.

[0026] Figure 8 Provided for embodiments of the present invention Figure 5 Enlarged view of point A in the middle;

[0027] Figure 9 Provided for embodiments of the present invention Figure 6 Enlarged diagram of point B in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Tank body; 11. Cylinder; 12. Connecting pipe; 121. First pipe; 122. Second pipe; 2. Separation chamber; 21. First chamber; 22. Second chamber; 23. Filter screen; 24. Limiting plate; 3. Pressure regulating assembly; 31. Pressure plate; 311. Liquid passage hole; 312. Placement groove; 313. Locking pin; 314. Third spring; 315. Pull rope; 32. Float plate; 33. Stop block; 34. Adjusting rod; 341. Pin hole; 35. Fixing block; 36. Second spring; 4. Adjusting component; 41. Adjusting block; 42. First spring; 43. Wedge block. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] like Figures 1 to 9 As shown in the figure, an integrated pressure filtration and purification device provided by the present invention includes a tank 1 and a separation mechanism disposed below the tank 1. The separation mechanism is used for filtering the solution in the tank 1. The separation mechanism includes a separation chamber 2 and a pressure regulating component 3. A filter screen 23 is disposed in the separation chamber 2. The pressure regulating component 3 is used to form a pressure difference on both sides of the filter screen 23 to promote the solution to pass through the filter screen 23.

[0033] Specifically, the integrated device includes a tank 1 for purifying the reaction and a purification assembly for solid-liquid separation, such as... Figures 1 to 3 As shown, the top of tank 1 is equipped with several feeding pipes, which are used to feed the mother liquor (leaching solution of manganese sulfate) and purification reagents, respectively. Tank 1 is also equipped with a stirring mechanism, such as... Figure 3As shown, the stirring mechanism is used to stir the mother liquor and the purification reagent to ensure that the two are fully mixed. This is existing technology and can be directly applied. The separation mechanism includes a separation chamber 2 located below the tank 1. A filter screen 23 is installed on the separation chamber 2, and the filter screen 23 divides the inner cavity of the filter tank into upper and lower parts. In addition, the separation mechanism also includes a pressure regulating component 3 for creating a pressure difference on both sides of the filter screen 23 to promote the solution to pass through the filter screen 23. For ease of description, the inner cavity of the separation chamber 2 is divided into a first chamber and a second chamber by the filter screen 23. The first chamber is connected to the space inside the tank 1 through a pipe. In this embodiment, a solenoid valve is connected in series on the pipe connected to the first chamber. Another pipe is also connected to the separation chamber 2, which is connected to the second chamber. Optionally, the pressure regulating component 3 includes a vacuum pump connected in series on the other pipe. The vacuum pump draws out the medium (including gas and liquid) in the second chamber, so that a negative pressure is generated in the second chamber, which promotes the solution in the first chamber to pass through the filter screen 23 to reach the second chamber.

[0034] After the reaction is complete, the solenoid valve on the above-mentioned pipeline is opened. The mixture in tank 1 flows to the first chamber under the action of gravity, and then flows from the first chamber to the second chamber. Impurity particles in the mixture are blocked in the first chamber by the filter screen 23. The vacuum pump is started. The suction of the vacuum pump makes the pressure in the second chamber lower than the pressure in the first chamber, thereby promoting the flow of liquid from the first chamber to the second chamber. The filtrate entering the second chamber is discharged out through the pipeline connected to the second chamber.

[0035] The pressure filtration and purification integrated device provided in this embodiment of the invention first introduces the mixed liquid into the separation chamber 2, and then uses the filter screen 23 to intercept the impurity particles in the mixed liquid within the separation chamber 2, so that the filter residue can be concentrated and stored in the separation chamber 2. The pressure regulating component 3 can create a pressure difference in the space on both sides of the filter screen 23 within the separation chamber 2, thereby promoting the passage of liquid through the filter screen 23, ensuring the efficiency of solid-liquid separation, and reducing the liquid content in the filter residue, thereby reducing waste.

[0036] Furthermore, the pressure regulating component 3 includes a pressure plate 31 disposed in the separation chamber 2. The pressure plate 31 is driven to move within the separation chamber 2 and squeezes the solution toward the side where the filter screen 23 is located.

[0037] Specifically, because colloidal precipitates (such as Fe(OH)3 and Al(OH)3) are generated during the neutralization and removal of iron and aluminum, the pressure difference generated by the vacuum pump when the colloidal precipitates are present is insufficient to effectively drive the filtration, resulting in extremely slow speed. In this embodiment, the pressure regulating component 3 includes a pressure plate 31, which is installed inside the separation chamber 2. Figure 1 , Figure 2 and Figures 4 to 6As shown, the separation chamber 2 is cylindrical, and the pressure plate 31 is adapted to the inner wall of the separation chamber 2 and dynamically sealed to the separation chamber 2. The pressure plate 31 is driven to move along the axial direction of the separation chamber 2 to adjust the volume of the first chamber, thereby increasing the liquid pressure in the first chamber and accelerating the speed at which the liquid passes through the filter screen 23, thereby improving the efficiency of solid-liquid separation. A cylinder 11 is installed at the bottom of the tank body 1, and the output end of the cylinder 11 is fixedly connected to the pressure plate 31. In addition, in this embodiment, the pipeline between the tank body 1 and the separation chamber 2 is directly connected from the side wall of the separation chamber 2 to the interior of the separation chamber 2, and a solenoid valve is connected in series on the pipeline.

[0038] During solid-liquid separation, the solenoid valve on the pipeline between tank 1 and separation chamber 2 is opened, and the mixture in tank 1 flows through the pipeline into the first chamber of separation chamber 2. The solenoid valve is then closed, and the pressure plate 31 is driven to move along the axial direction of separation chamber 2 toward the side where the filter screen 23 is located. As the pressure plate 31 moves, the mixture in the first chamber is pushed toward the filter screen 23 and thus filtered by the filter screen 23. Then, the pressure plate 31 is driven away from the filter screen 23, and the solenoid valve is opened again to continue adding the mixture into the first chamber. The above steps are repeated. At the end of solid-liquid separation, when all the remaining mixture in tank 1 has entered separation chamber 2, the pressure plate 31 is driven to move toward the filter screen 23 until the pressure plate 31 can no longer move, thus filtering out the solution in the filter residue to the maximum extent.

[0039] In this embodiment, by squeezing and controlling the moving distance of the pressure plate 31, combined with the anti-backflow function of the solenoid valve, a sufficient pressure difference can be generated between the first chamber and the second chamber, thereby ensuring that the mixture is fully filtered. The speed of solid-liquid separation can also be controlled by the reciprocating speed of the pressure plate 31. Furthermore, the squeezing of the filter cake by the pressure plate 31 can also squeeze out the residual liquid in the filter cake, reducing losses and facilitating further processing of the filter cake.

[0040] Furthermore, a connecting pipe 12 is fixedly connected to the bottom of the tank body 1. The end of the connecting pipe 12 away from the tank body 1 is fixedly connected to the pressure plate 31. A liquid passage hole 311 is opened on the pressure plate 31 at the position corresponding to the connecting plate. A blocking component is also provided on the pressure plate 31 to block the liquid passage hole 311 to prevent backflow.

[0041] Specifically, in the above embodiment, the pipe between the tank 1 and the separation chamber 2 is directly connected to the side wall of the separation chamber 2. On the one hand, introducing the mixed liquid through the side wall easily leads to a thicker filter cake on the filter screen 23 near the inlet side, while the filter cake on the other side is thinner, making it difficult to forcibly squeeze the filter cake later, resulting in inconsistent overall dryness of the filter cake. On the other hand, if the inlet point is close to the location of the filter screen 23, the filter cake will affect the entry of the mixed liquid into the separation chamber 2. If the inlet point is far from the location of the filter screen 23, it will restrict the stroke of the pressure plate 31. Once the pressure plate 31 moves too far, it will cause the inlet to be blocked. The point is located on the side of the pressure plate 31 away from the filter screen 23, which is not conducive to the dynamic seal between the pressure plate 31 and the separation chamber 2. In this embodiment, a connecting pipe 12 is fixedly connected to the bottom of the tank 1. Optionally, the connecting pipe 12 is a flexible hose, and the end of the connecting pipe 12 away from the tank 1 is fixedly connected to the pressure plate 31. The pressure plate 31 has a liquid passage hole 311, so that the mixed liquid in the tank 1 can be directly introduced into the separation chamber 2 through the liquid passage hole 311 on the pressure plate 31. The pressure plate 31 is also provided with a shielding component. In this embodiment, the shielding component is a solenoid valve installed in the liquid passage hole 311.

[0042] In this embodiment, by opening a liquid passage hole 311 on the pressure plate 31 and connecting the connecting pipe 12 connected to the tank body 1 to the location of the liquid passage hole 311 on the pressure plate 31, the mixed liquid in the tank body 1 can be passed into the separation chamber 2 through the liquid passage hole 311 on the pressure plate 31, which is beneficial to the uniform distribution of the filter residue, thereby facilitating the complete squeezing out of the solution in the filter residue in the later stage.

[0043] Preferably, the connecting pipe 12 includes a first pipe 121 and a second pipe 122, and the first pipe 121 and the second pipe 122 are dynamically sealed together.

[0044] Specifically, since the mixture discharged from tank 1 contains a large amount of particulate matter, and the above embodiment uses a hose to connect tank 1 to pressure plate 31, when pressure plate 31 reciprocates, the hose bends and stretches accordingly. On the one hand, the particulate matter in the mixture easily forms sediment in the hose, which is difficult to clean. On the other hand, under the continuous reciprocating motion of pressure plate 31, the hose will be subjected to frequent flexural fatigue in a fixed bending area, which is very likely to cause rupture or leakage at the joint or the point of strongest bending. Based on this, the connecting pipe 12 is a rigid pipe, which includes a first pipe 121 and a second pipe 122, such as... Figure 3 , Figure 4 and Figure 6As shown, the upper end of the first pipe 121 is fixedly connected to the tank body 1, and the lower end of the second pipe 122 is fixedly connected to the pressure plate 31. Ideally, the inner diameter of the second pipe 122 is adapted to the outer diameter of the first pipe 121, that is, the lower end of the first pipe 121 extends into the interior of the second pipe 122. This ensures that the steps formed inside the connecting pipe 12 are vertically downward, thereby reducing the sediment formed inside the connecting pipe 12. Preferably, a flexible scraper ring is fixedly connected to one end of the first pipe 121 that extends into the second pipe 122. When the first pipe 121 and the second pipe 122 move relative to each other, the flexible scraper ring prevents sediment from reaching the contact surface between the first pipe 121 and the second pipe 122, thereby protecting the dynamic seal of both.

[0045] In another embodiment of the present invention, the shielding member includes a float plate 32, which is installed on one side of the pressure plate 31 corresponding to the filter screen 23, and the float plate 32 has a shielding state that can shield the liquid passage hole 311.

[0046] Specifically, in the above embodiment, by installing a solenoid valve in the liquid passage hole 311 on the pressure plate 31 to prevent the mixed liquid from flowing back into the connecting pipe 12, the pressure plate 31 needs to move up and down frequently during the entire process of solid-liquid separation of the mixed liquid in the tank 1. The solenoid valve needs to be closed when the pressure plate 31 moves downwards (towards the side where the filter screen 23 is located) and opened when the pressure plate 31 moves upwards (away from the side where the filter screen 23 is located). This frequent switching of the solenoid valve can easily lead to a shortened lifespan, decreased performance, or even complete failure. Furthermore, maintenance of the solenoid valve is inconvenient. In this embodiment, the shielding component includes a float plate 32, which is installed on the side of the pressure plate 31 corresponding to the filter screen 23. Figure 5 and Figure 6 As shown, the float plate 32 is disc-shaped, and the diameter of the float plate 32 is larger than the diameter of the liquid passage 311. Preferably, the float plate 32 is rotatably connected to the pressure plate 31. During the reciprocating movement of the pressure plate 31, when the pressure plate 31 moves downward, the float plate 32 rotates under the action of buoyancy until it is in contact with the lower surface of the pressure plate 31. At this time, the float plate 32 is in a blocking state. When the pressure plate 31 moves upward, the mixed liquid in the connecting pipe 12 can break through the float plate 32 and flow into the first chamber. That is, at this time, the float plate 32 is equivalent to a one-way valve, which can prevent the mixed liquid from flowing back into the connecting pipe 12.

[0047] In this embodiment, a float plate 32, which is rotatably mounted on the lower surface of the pressure plate 31, is used as a one-way valve. It has a simple structure, is easy to maintain, and has a long service life.

[0048] Furthermore, a mounting groove 312 is provided on the pressure plate 31 at the position corresponding to the floating plate 32. The floating plate 32, which is in a shielded state, is located in the mounting groove 312. The shielding component also includes a stop block 33, which is driven to shield the floating plate 32 in the mounting groove 312.

[0049] Specifically, during the extrusion of the filter residue, the float plate 32 needs to remain closed and withstand significant pressure. However, the float plate 32, due to buoyancy, remains in contact with the lower surface of the pressure plate 31. This results in its low-density material, which, as an extrusion component, cannot withstand high pressure and may cause damage. In this embodiment, a mounting groove 312 is provided on the pressure plate 31 corresponding to the position of the float plate 32. The float plate 32 is rotatably installed in this mounting groove 312. When the float plate 32... 2. When in the shielded state, the float 32 is completely in the placement groove 312, and the surface of the float 32 remains parallel to the surface of the pressure plate 31. At this time, the float 32 completely shields the liquid passage 311. It should be noted that in order for the float 32 to be able to rotate completely into the placement groove 312, the diameter of the placement groove 312 is larger than the diameter of the float 32. In addition, in this embodiment, the shielding member also includes a stop block 33, which is driven to move to fit against the lower surface of the pressure plate 31 and completely shield the placement groove 312.

[0050] The stop block 33 has a first position and a second position relative to the pressure plate 31:

[0051] When in the first position, the distance between the stop block 33 and the lower surface of the pressure plate 31 is at its maximum. In this position, the stop block 33 will not affect the rotation of the float plate 32. Figure 7 The state shown;

[0052] When in the second position, the stop block 33 contacts the lower surface of the pressure plate 31 and completely blocks the mounting groove 312, at which time the float plate 32 is inside the mounting groove 312.

[0053] During the solid-liquid separation process of the mixture in tank 1, the baffle 33 remains in the first position. At the end of the solid-liquid separation, when all the mixture in tank 1 has entered the first chamber, the baffle 33 is driven to adjust from the first position to the second position. Then, the pressure plate 31 is driven to move continuously toward the filter screen 23, squeezing the filter residue blocked by the filter screen 23, thereby squeezing out the solution in the filter residue to the maximum extent. The baffle 33 can be driven by an existing linear drive mechanism such as cylinder 11 or hydraulic cylinder.

[0054] In this embodiment, by installing an adjustable baffle 33 on the pressure plate 31, when the filter residue is squeezed, the baffle 33 is driven to move from the first position to the second position, thereby completely blocking the placement groove 312 and preventing the filter residue from entering the placement groove 312. The baffle 33 bears the pressure from the filter residue, protecting the float plate 32 from damage.

[0055] In another embodiment of the present invention, an adjusting member 4 is installed on the separation chamber 2, and the pressure plate 31 is driven to move axially along the separation chamber 2 and has a first stroke and a second stroke. In the first stroke, the distance between the stop block 33 and the pressure plate 31 is the largest. In the second stroke, the stop block 33 is driven to move to contact the pressure plate 31 to block the placement groove 312.

[0056] Furthermore, the adjusting component 4 includes an adjusting block 41 slidably mounted on the separation chamber 2, a first spring 42 provided on the separation chamber 2 to maintain the relative position of the adjusting block 41 and the separation chamber 2, a wedge 43 rotatably mounted on the adjusting block 41, and a torsion spring provided on the adjusting block 41 to maintain the wedge 43 in a horizontal state, an adjusting rod 34 fixedly connected to the stop block 33, the adjusting rod 34 passing through the pressure plate 31 along the axial direction of the pressure plate 31, and a fixing block 35 fixedly connected to the end of the adjusting rod 34 away from the stop block 33.

[0057] Specifically, in the above embodiment, a linear drive mechanism is used to adjust the position of the stop 33. Since the pressure plate 31 is constantly moving, this is disadvantageous for the circuit or air path arrangement of the linear drive mechanism. A monitoring mechanism (such as a distance sensor) is also needed to monitor the position of the pressure plate 31 in the separation chamber 2, so that the stop 33 is only switched to the second position at the end of solid-liquid separation (when the pressure plate 31 squeezes the filter cake). The control program is relatively complex. If the linear drive mechanism, the detection mechanism, or the control program malfunctions, the stop 33 will not be driven or will be switched to the second position prematurely, which is detrimental to solid-liquid separation. The pressure plate 31... The separation chamber 2 has a first stroke and a second stroke. During the normal solid-liquid separation stage, the pressure plate 31 is driven to reciprocate only within the first stroke, continuously squeezing the mixture in the first chamber towards the filter screen 23. In the second stroke, based on the first stroke, the pressure plate 31 is driven to continue moving towards the filter screen 23, squeezing the filter residue towards it. The distance of the first stroke is two-thirds of the maximum distance the pressure plate 31 can move axially along the separation chamber 2, while the distance of the second stroke is one-third of the maximum distance, to ensure that sufficient pressure is generated during the filtration stage. In this embodiment, the diameter of the baffle 33 is larger than the diameter of the float 32. Figure 6 In the middle, the stop block 33 and the float plate 32 are eccentrically arranged. An adjusting rod 34 is fixedly connected to the edge of the stop block 33. The adjusting rod 34 is staggered from the mounting groove 312, and the adjusting rod 34 passes through the pressure plate 31 along the axial direction of the pressure plate 31. The end of the adjusting rod 34 away from the stop block 33 ( Figure 6 A fixed block 35 is fixedly connected to the upper end of the view, and the adjusting rod 34 is dynamically sealed to the pressure plate 31. The adjusting rod 34 is driven to move axially along the pressure plate 31 to adjust the position of the stop block 33; an adjusting component 4 is also installed on the separation chamber 2, the adjusting component 4 including an adjusting block 41 slidably installed on the separation chamber 2, such as Figure 5As shown, a limiting plate 24 is installed on the side of the separation chamber 2 away from the filter screen 23. An adjusting block 41 is slidably installed on the limiting plate 24, with the adjusting block 41 facing the adjusting rod 34 and sliding radially along the adjusting rod 34. A first spring 42 is provided on the limiting plate 24 to maintain the relative position of the adjusting block 41 and the limiting plate 24. A wedge 43 is rotatably installed on the adjusting block 41, and a torsion spring is provided on the rotating shaft of the wedge 43. The torsion spring maintains the wedge 43 in a horizontal state, and the inclined surface of the wedge 43 is inclined upward. When the first spring 42 is in its natural state, the wedge 43 extends below the fixed block 35. When the wedge 43 is in its initial position, it is in a horizontal state. Optionally, a protrusion is provided on the adjusting block 41 in the horizontal direction, such as... Figure 5 As shown, the bump restricts the wedge 43 to a horizontal state so that the wedge 43 can only rotate upward from a horizontal angle.

[0058] In the first stroke, the fixed block 35 remains above the wedge block 43. In the second stroke, as the pressure plate 31 moves towards the filter screen 23, the fixed block 35 moves downward synchronously with the pressure plate 31 until it contacts the inclined surface of the wedge block 43. Restricted by the wedge block 43, the fixed block 35 drives the adjusting rod 34 to move upward relative to the pressure plate 31, adjusting the stop block 33 from the first position to the second position. When the stop block 33 is in the second position, the adjusting rod 34 cannot move upward further. At this time, the pressure plate 31 continues to move towards the filter screen 23. As the force on the wedge block 43 gradually increases, it pushes the adjusting block 41 to retract into the limiting plate 24 until the wedge block 43 and the fixed block 35 are misaligned, ensuring that the adjusting block 41 can continue to move downward synchronously with the pressure plate 31. At this time, the stop block 33 remains in the second position. After the fixed block 35 moves below the wedge block 43 with the adjusting rod 34, the adjustment... Under the action of the spring force of the first spring 42, block 41 returns to its original position, causing wedge 43 to move horizontally above fixed block 35. When pressure plate 31 is driven to move in the opposite direction (moving from the end of the second stroke to the beginning of the first stroke, gradually moving away from filter screen 23), fixed block 35 can directly push wedge 43 to rotate upward, that is, the setting of wedge 43 does not affect the upward movement of fixed block 35. In this embodiment, in order to ensure that when pressure plate 31 moves in the opposite direction to the beginning of the first stroke, stop block 33 can be switched to the first position again, a limiting member such as baffle (not shown in the figure) can be set on separation chamber 2. The baffle is always above fixed block 35. When pressure plate 31 moves in the opposite direction to near the beginning of the first stroke, fixed block 35 contacts baffle and cannot follow pressure plate 31 to continue moving upward, thereby passively switching stop block 33 from the second position to the first position.

[0059] In this embodiment, the position of the baffle 33 is passively adjusted by the setting adjustment component 4, which simplifies the control program and improves the stability of the device operation, ensuring that the baffle 33 is in the second position before the pressure plate 31 is driven to squeeze the filter residue.

[0060] In another embodiment of the present invention, the separation chamber 2 includes a first chamber 21 and a second chamber 22. The first chamber 21 is fixedly installed below the tank body 1, while the second chamber 22 is rotatably connected to the first chamber 21, and the filter screen 23 is installed on the inner wall of the second chamber 22.

[0061] Specifically, to facilitate the discharge of filter residue, in this embodiment, the separation chamber 2 includes a first chamber 21 and a second chamber 22, as follows: Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the first chamber 21 is fixedly installed below the tank body 1, while the second chamber 22 is rotatably installed below the first chamber 21. The filter screen 23 is installed inside the second chamber 22. The first chamber 21 is provided with a locking structure for locking the second chamber 22. The locking structure can be an existing magnetic or manual type, which is existing technology and can be directly applied without further explanation. With this configuration, when it is necessary to clean the filter residue, the lock on the second chamber 22 is released, and the second chamber 22 is rotated so that the lower part of the first chamber 21 is fully exposed. Then, by driving the pressure plate 31 to move further down (continuing to move down based on the second stroke), the filter residue compressed in the lower part of the first chamber 21 can be pushed outward.

[0062] Furthermore, a second spring 36 is fitted on the adjusting rod 34 to maintain the relative position of the pressure plate 31 and the stop block 33. When the second spring 36 is in its natural state, the distance between the stop block 33 and the pressure plate 31 is at its maximum. The pressure plate 31 is also provided with a locking element for locking the stop block 33.

[0063] Furthermore, the locking component includes a locking pin 313 and a third spring 314. The locking pin 313 is slidably mounted on the pressure plate 31. The adjusting rod 34 has a pin hole 341 that matches the locking pin 313. When the stop block 33 contacts the pressure plate 31, the third spring 314 pushes the locking pin 313 into the pin hole 341 to lock the stop block 33.

[0064] Furthermore, the movement of the pressure plate 31 along the separation chamber 2 also includes a third stroke. A pull rope 315 is provided on the first chamber 21. The pull rope 315 is fixedly connected to the locking pin 313. In the third stroke, the pull rope 315 pulls the locking pin 313 to disengage from the adjusting rod 34 to release the lock on the stop block 33.

[0065] Specifically, during the process of ejecting the filter cake, to facilitate the separation of the filter cake from the pressure plate 31, in this embodiment, a second spring 36 is fitted onto the adjusting rod 34. The upper end of the second spring 36 is fixedly connected to the fixing block 35, while the lower end of the second spring 36 is fixedly connected to the pressure plate 31. When the second spring 36 is in its natural state, the stop block 33 remains in the first position, and when the stop block 33 is in the second position, the second spring 36 is stretched. Furthermore, the pressure plate 31 is also provided with a locking member for locking the stop block 33. The locking member is used to lock the stop block 33 in the second position. Optionally, the locking member includes a locking pin 313 slidably installed inside the pressure plate 31, such as... Figure 6 As shown, the end of the locking pin 313 extends to the through position of the adjusting rod 34 on the pressure plate 31. The adjusting rod 34 has a pin hole 341 that matches the locking pin 313. When the stop block 33 is in the second position, the pin hole 341 is directly opposite the locking pin 313. A third spring 314 is also provided inside the pressure plate 31. When the locking pin 313 contacts the outer wall of the adjusting rod 34, the third spring 314 is in a compressed state, that is... Figure 6 The third spring 314 in the view is in a compressed state; when the locking pin 313 is aligned with the pin hole 341, the third spring 314 pushes the locking pin 313 into the pin hole 341 to lock the adjusting rod 34, thereby locking the stop block 33 in the second position; in addition, in this embodiment, the aforementioned limiting plate 24 is installed on the first compartment 21, and a pull rope 315 is fixedly connected to the limiting plate 24. The pull rope 315 passes through the installation position of the locking pin 313 in the pressure plate 31, and the end of the pull rope 315 away from the limiting rod is fixedly connected to the locking pin 313. With this arrangement, when the pressure plate 31 is driven to... As the second stroke continues to move towards the side where the filter screen 23 is located to push out the filter residue, the locking pin 313 is pulled by the pull rope 315, which passively releases the lock on the adjusting rod 34, so that the second spring 36 can pull the adjusting rod 34 downward, thereby adjusting the stop block 33 from the second position to the first position. During this process, the stop block 33 can push the filter residue to separate from the pressure plate 31. On the other hand, after the filter residue is discharged, the stop block 33 is kept in the first position to facilitate cleaning of the pressure plate 31, the stop block 33, and the liquid passage hole 311 on the pressure plate 31.

[0066] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pressure filtration and purification integrated device, comprising a tank and a separation mechanism disposed below the tank, the separation mechanism being used for filtering a solution within the tank, characterized in that, The separation mechanism includes a separation chamber and a pressure regulating component. A filter screen is installed inside the separation chamber, and the pressure regulating component is used to create a pressure difference across the filter screen to facilitate the passage of the solution through the filter screen.

2. The integrated pressure filtration and purification device according to claim 1, characterized in that, The pressure regulating assembly includes a pressure plate disposed within the separation chamber. The pressure plate is driven to move within the separation chamber and squeezes the solution toward the side where the filter screen is located.

3. The integrated pressure filtration and purification device according to claim 2, characterized in that, A connecting pipe is fixed to the bottom of the tank. The end of the connecting pipe away from the tank is fixedly connected to the pressure plate. A liquid passage hole is opened on the pressure plate at the position corresponding to the connecting plate. A shielding component is also provided on the pressure plate to block the liquid passage hole to prevent backflow.

4. The integrated pressure filtration and purification device according to claim 3, characterized in that, The connecting pipe includes a first pipe and a second pipe, which are dynamically sealed together.

5. The integrated pressure filtration and purification device according to claim 3, characterized in that, The shielding component includes a float plate, which is installed on one side of the pressure plate corresponding to the filter screen, and the float plate has a shielding state that can block the liquid passage holes.

6. The integrated pressure filtration and purification device according to claim 5, characterized in that, The pressure plate has a mounting groove at the position corresponding to the float. The float, which is in a blocked state, is placed in the mounting groove. The blocking component also includes a stop block. The stop block is driven to block the float in the mounting groove.

7. The integrated pressure filtration and purification device according to claim 6, characterized in that, An adjusting component is installed on the separation chamber. The pressure plate is driven to move axially along the separation chamber and has a first stroke and a second stroke. In the first stroke, the distance between the stop block and the pressure plate is the largest. In the second stroke, the stop block is driven to move to contact the pressure plate to block the placement slot.

8. The integrated pressure filtration and purification device according to claim 7, characterized in that, The adjusting component includes an adjusting block that is slidably mounted on the separation chamber. A first spring is provided on the separation chamber to maintain the relative position of the adjusting block and the separation chamber. A wedge is rotatably mounted on the adjusting block, and a torsion spring is provided on the adjusting block to maintain the wedge in a horizontal state. An adjusting rod is fixedly connected to the stop block. The adjusting rod passes through the pressure plate along the axial direction of the pressure plate, and a fixing block is fixedly connected to the end of the adjusting rod away from the stop block.

9. The integrated pressure filtration and purification device according to claim 1, characterized in that, The separation chamber includes a first chamber and a second chamber. The first chamber is fixedly installed at the bottom of the tank, while the second chamber is rotatably connected to the first chamber, and the filter screen is installed on the inner wall of the second chamber.

10. The integrated pressure filtration and purification device according to claim 8, characterized in that, The adjusting rod is fitted with a second spring to maintain the relative position of the pressure plate and the stop. When the second spring is in its natural state, the distance between the stop and the pressure plate is at its maximum. The pressure plate is also equipped with a locking device for locking the stop.

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