Automatic discharge filter press
By designing an automatic unloading filter press, the filter plates are made to slide and flip using moving components and limiting parts, which solves the problem of filter cake sticking and improves processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PT ESG NEW ENERGY MATERIAL
- Filing Date
- 2024-10-24
- Publication Date
- 2026-06-26
AI Technical Summary
In existing filter presses, the filter cake tends to stick to the filter screen after processing, resulting in reduced processing efficiency.
Design an automatic unloading filter press that uses a moving component to drive the filter plate to slide, and combines a limiting component and a driving component to make the filter plate flip and vibrate, thus preventing the filter cake from sticking.
This effectively prevents the filter cake from sticking to the filter plate, thus improving the processing efficiency of the filter press.
Smart Images
Figure CN224404488U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of filtration device technology, specifically to an automatic unloading filter press. Background Technology
[0002] Currently, in the hydrometallurgical process of laterite nickel ore, the slurry after high-pressure leaching and multi-stage neutralization needs to be washed through multi-stage countercurrent to achieve solid-liquid separation. The underflow after separation is generally filtered by a filter press to form a filter cake for off-site processing.
[0003] Existing filter presses, as described in patent application number CN200910155443.7, feature several filter plates arranged side-by-side, with two plates forming a chamber. Each filter plate has a central hole through which the suspension flows into each chamber, thus gradually completing the filtration process. However, in practical applications, the filter cake after filtration still retains a certain moisture content, causing it to easily adhere to the filter screen and requiring manual cleaning. This significantly reduces the filter press's processing efficiency.
[0004] How to prevent the filter cake from sticking to the filter plate is a technical problem that urgently needs to be solved. Summary of the Invention
[0005] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose an automatic unloading filter press to solve the technical problem of how to avoid filter cake sticking to the filter plate in the prior art.
[0006] To achieve the above-mentioned technical objectives, this application adopts the following technical solution:
[0007] This application provides an automatic unloading filter press, comprising:
[0008] frame;
[0009] A plurality of filter plates are arranged side by side and slidably disposed on the frame, and the filter plates are capable of deflecting relative to the frame at a set angle;
[0010] A movable component, which is drive-connected to the filter plate, to sequentially drive the filter plate to slide relative to the frame in a first direction; and
[0011] A blocking assembly includes a limiting member and a driving member, the driving member being connected to the limiting member and used to drive the limiting member to move along a second direction, the limiting member extending at least partially to block the upper or lower side of the filter cake from moving along a first direction; wherein the first direction is opposite to the second direction.
[0012] In some embodiments, the limiting member includes a first slide, a stop bar, and a switching part. The first slide is slidably disposed on the frame along the arrangement direction of the plurality of filter plates. The driving member is convexly connected to the first slide to drive the first slide to slide along the second direction. The stop bar is movably disposed on the first slide. The movement trajectory of the stop bar has a first position that blocks the movement of the filter plates and a second position that moves away from the filter plates to allow the filter plates to move. The switching part is convexly connected to the stop bar to drive the stop bar to switch between the first position and the second position.
[0013] In some embodiments, one end of the stop lever is rotatably mounted on the first slide block, the switching part includes a cylinder, the piston rod of the cylinder is hinged to the stop lever, and the cylinder body of the cylinder is hinged to the first slide block.
[0014] In some embodiments, the frame has a guide rod, and the first slide has a guide hole, which is fitted onto the guide rod so that the first slide slides along the guide rod.
[0015] In some embodiments, the slide has a threaded hole, the driving component includes a lead screw and a motor, the lead screw is screwed to the threaded hole, and the motor drives the lead screw to rotate so as to push the slide along the guide rod.
[0016] In some embodiments, the limiting member includes a second slide and a flexible baffle. The second slide is slidably disposed on the frame along the arrangement direction of the plurality of filter plates. The driving member is tractively connected to the second slide to drive the second slide to slide along the second direction. One end of the flexible baffle is connected to the second slide, and the other end of the flexible baffle is used to block the filter plate. The flexible baffle contacts the moving filter plate to cause the filter plate to flip. The flexible baffle can be bent under the push of the filter plate so that the moving filter plate can disengage from the flexible baffle.
[0017] In some embodiments, the moving component includes a drive trolley that is slidably disposed on the frame and can be aligned with any one of the filter plates, and has a third state in which it is connected to the filter plate to drive the filter plate, and a fourth state in which it is disengaged from the filter plate and adjusts its relative position to the filter plate.
[0018] In some embodiments, the limiting member blocks the top of the filter plate to cause the filter plate to flip.
[0019] In some embodiments, the driving trolley has an electromagnet. When the driving trolley is in the third state, the electromagnet is magnetic and attracts the bottom end of the filter plate. When the driving trolley is in the fourth state, the electromagnet loses its magnetic force, so that the driving trolley can move relative to the filter plate.
[0020] In some embodiments, the moving component includes a plurality of limiting ropes, which are spaced apart between a plurality of filter plates, and the two ends of the limiting ropes are respectively connected to two adjacent filter plates.
[0021] After the automatic unloading filter press completes the filtration process, the filter plates can be slid relative to the frame in a first direction by moving the components, thereby increasing the spacing between the filter plates and allowing the filter cake to fall through the gaps. Limiting components block the upper or lower sides of the filter plates, causing them to flip and vibrate, effectively preventing the filter cake from sticking to the plates. The flipped filter plates can also disengage from the limiting components, allowing them to align with the next filter plate. Simultaneously, the limiting components move in a second direction, ensuring they contact each filter plate individually. This automatic unloading filter press vibrates the filter plates during the filter cake release process, effectively preventing the filter cake from sticking to the plates. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the automatic unloading filter press provided in the embodiments of this application;
[0023] Figure 2 This is a schematic diagram of the internal structure of the first slide provided in an embodiment of this application;
[0024] Figure 3 This is a partial schematic diagram of another limiting member provided in an embodiment of this application;
[0025] Explanation of reference numerals in the attached drawings: frame 100, guide rod 110, moving component 200, drive trolley 210, electromagnet 211, limiting rope 220, filter plate 300, blocking component 400, limiting member 410, first slide 411, guide hole 4111, thread hole 4112, stop bar 412, switching part 413, cylinder 4131, drive component 420, lead screw 421, motor 422. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0027] To address the technical problem of how to prevent filter cake from sticking to the filter plate, this application provides an automatic unloading filter press that can cause the filter plate to vibrate during the release of the filter cake, thereby preventing the filter cake from sticking to the filter plate.
[0028] It should be noted that the automatic unloading filter press of this application is used for, but not limited to, filtration of slurry underflow. For ease of explanation, this application will only use the application of the automatic unloading filter press to filtration of slurry underflow as an example. The principle of the automatic unloading filter press in other types of equipment is essentially the same as that in the application to filtration of slurry underflow, and will not be described in detail here.
[0029] Please see Figure 1 , Figure 1 This is a schematic diagram of an automatic unloading filter press according to an embodiment of this application. The automatic unloading filter press includes a frame 100, a moving component 200, a blocking component 400, and several filter plates 300 arranged side by side. The filter plates 300 are slidably arranged side by side on the frame 100, and the filter plates 300 can be deflected relative to the frame 100 by a set angle. The moving component 200 is connected to the filter plates 300 in a driving manner, so as to sequentially drive the filter plates 300 to slide relative to the frame 100 in a first direction. The blocking component 400 includes a limiting member 410 and a driving member 420. The driving member 420 is connected to the limiting member 410 and is used to drive the limiting member 410 to move in a second direction. The limiting member 410 extends at least partially to block the upper or lower side of the filter cake from moving in the first direction. The first direction is opposite to the second direction.
[0030] In this embodiment, after the automatic unloading filter press completes the filtration process, the moving component 200 can sequentially drive the filter plates 300 to slide relative to the frame 100 along the first direction, thereby gradually increasing the distance between the filter plates 300 and allowing the filter cake to fall through the gaps between the filter plates 300. The limiting member 410 blocks the upper or lower side of the filter plate 300, causing the filter plate 300 to flip and vibrate, effectively preventing the filter cake from sticking to the filter plate 300. The flipped filter plate 300 can also detach from the limiting member 410, allowing the limiting member 410 to align with the next filter plate 300. Simultaneously, the limiting member 410 can move along the second direction, allowing it to contact each filter plate 300 one by one. Using the above-described automatic unloading filter press, the filter plates 300 can vibrate during the release of the filter cake, effectively preventing the filter cake from sticking to the filter plates 300.
[0031] It should be emphasized here that the frame 100 is usually provided with guide rails for the filter plate 300 to slide. The filter plate 300 has a fitting gap with the guide rail, and the filter plate 300 is relatively narrow, which allows the filter plate 300 to rotate slightly relative to the guide rail.
[0032] Any implementation of the limiting member 410 that can block the movement of the filter plate 300 is feasible. In some embodiments, the limiting member 410 includes a first slide 411, a stop bar 412, and a switching part 413. The first slide 411 is slidably disposed on the frame 100 along the arrangement direction of the plurality of filter plates 300. The stop bar 412 is movably disposed on the first slide 411. The movement trajectory of the stop bar 412 has a first position that blocks the movement of the filter plate 300 and a second position that is away from the filter plate 300 to allow the filter plate 300 to move. The switching part 413 is connected to the stop bar 412 to drive the stop bar 412 to switch between the first position and the second position.
[0033] In this embodiment, the filter plates 300 have two sliding directions. When the filter plates 300 move away from each other to clean the filter cake, the filter plates 300 can be flipped slightly. At this time, the switching unit 413 switches the baffle 412 to the first position, thereby blocking the movement of the filter plates 300 and forcing the filter plates 300 to flip and vibrate. When the filter plates 300 move in a direction that brings them closer together, the filter plates 300 are tightly fitted together, making it difficult for them to flip. The switching unit 413 can switch the baffle 412 to the second position, removing the obstruction of the baffle 412 and allowing the filter plates 300 to move freely.
[0034] Based on the above embodiments, in some embodiments, one end of the stop lever 412 is rotatably mounted on the first slide block 411, and the switching part 413 includes a cylinder 4131, the piston rod of the cylinder 4131 is hinged to the stop lever 412, and the cylinder body of the cylinder 4131 is hinged to the first slide block 411.
[0035] In this embodiment, since the piston rod of cylinder 4131 is hinged to the stop rod 412, and the cylinder body of cylinder 4131 is hinged to the first slide block 411, when the piston rod of cylinder 4131 moves relative to the cylinder body of cylinder 4131, it can drive the stop rod 412 to rotate relative to the first slide block 411.
[0036] In some embodiments, the blocking assembly 400 includes a drive member 420 that is drively connected to the first slide block 411 to drive the first slide block 411 to slide.
[0037] In this embodiment, the first slide block 411 is translated by the driving member 420, thereby adjusting the relative position of the first slide block 411 and the filter plate 300 so that the first slide block 411 can be aligned with the target filter plate 300. In addition, the first slide block 411 can be stopped at any position on its sliding trajectory by the driving member 420.
[0038] Any implementation that allows the first slide block 411 to slide relative to the frame 100 is feasible. In some embodiments, the frame 100 has a guide rod 110, and the first slide block 411 has a guide hole 4111. The guide hole 4111 is sleeved on the guide rod 110 so that the first slide block 411 slides along the guide rod 110.
[0039] In this embodiment, a guide hole 4111 is provided on the first slide block 411. Since the guide hole 4111 is sleeved on the guide rod 110, the first slide block 411 has a stable sliding trajectory under the guidance of the guide rod 110.
[0040] Based on the above embodiments, in some embodiments, the first slide block 411 has a threaded hole 4112, and the driving member 420 includes a lead screw 421 and a motor 422. The lead screw 421 is screwed to the threaded hole 4112, and the motor 422 drives the lead screw 421 to rotate, so as to push the first slide block 411 to slide along the guide rod 110.
[0041] In this embodiment, since the lead screw 421 and the lead hole 4112 are screwed together, the motor 422 drives the lead screw 421 to rotate, and the rotating lead screw 421 can then push the first slide block 411 to move.
[0042] It is understood that the aforementioned limiting member 410 is obviously not the only implementation. This application also provides some other embodiments of the limiting member 410, wherein the limiting member 410 includes a second slide 414 and a flexible baffle 415. The second slide 414 is slidably disposed on the frame 100 along the arrangement direction of the plurality of filter plates 300. One end of the flexible baffle 415 is connected to the second slide 414, and the other end of the flexible baffle 415 is used to block the filter plate 300. The flexible baffle 415 contacts the moving filter plate 300 to make the filter plate 300 flip, and the flexible baffle 415 can be bent under the push of the filter plate 300 so that the moving filter plate 300 can be disengaged from the flexible baffle 415.
[0043] In this embodiment, after the second slide block 414 is aligned with the filter plate 300, the filter plate 300 is blocked by the flexible baffle 415, which causes the moving filter plate 300 to vibrate. As the filter plate 300 continues to move, it forces the flexible baffle 415 to bend until it can no longer obstruct the movement of the filter plate 300, allowing the filter plate 300 to overcome the obstruction of the flexible baffle 415. Furthermore, since the flexible baffle 415 is deformable, it will not obstruct the translation of the filter plates 300 regardless of how they translate.
[0044] In some embodiments, the moving component 200 includes a drive trolley 210 that is slidably disposed on the frame 100 and can be aligned with any filter plate 300, and has a third state in which it connects to the filter plate 300 to drive the filter plate 300, and a fourth state in which it disengages from the filter plate 300 and adjusts its relative position to the filter plate 300.
[0045] In this embodiment, the drive trolley 210 can move on the frame 100. When it is necessary to drive the filter plate 300 by the drive trolley 210, the drive trolley 210 can be adjusted to the third state, so that the drive trolley 210 and the filter plate 300 are connected to each other, and then the filter plate 300 can be slid by the drive trolley 210. When it is necessary to adjust the relative position of the filter plate 300 and the drive trolley 210, the drive trolley 210 can be adjusted to the fourth state. Since the drive trolley 210 is detached from the filter plate 300, the drive trolley 210 can move relative to the filter plate 300.
[0046] In some embodiments, the limiting member 410 blocks the top of the filter plate 300 to cause the filter plate 300 to tilt.
[0047] In this embodiment, because the limiting member 410 blocks the top of the filter plate 300, the filter plate 300 tilts, making it easier for the filter cake to detach from the filter plate 300. It should be emphasized here that there is a fitting gap between the filter plate 300 and the frame 100, so the filter plate 300 can sway slightly relative to the frame 100 when subjected to external force.
[0048] Any implementation that allows the drive trolley 210 and the filter plate 300 to be interconnected is feasible. In some embodiments, the drive trolley 210 has an electromagnet 211. When the drive trolley 210 is in the third state, the electromagnet 211 is magnetic and attracts the bottom end of the filter plate 300. When the drive trolley 210 is in the fourth state, the electromagnet 211 loses its magnetic force, so that the drive trolley 210 can move relative to the filter plate 300.
[0049] In this embodiment, when the electromagnet 211 is magnetic, the electromagnet 211 and the filter plate 300 are attracted to each other, which allows the drive trolley 210 to move the filter plate 300. When the electromagnet 211 is not magnetic, the drive trolley 210 can move freely relative to the filter plate 300 because the magnetic force is no longer restrictive.
[0050] In some embodiments, the moving component 200 includes a plurality of limiting ropes 220, which are spaced apart between a plurality of filter plates 300, and the two ends of the limiting ropes 220 are respectively connected to two adjacent filter plates 300.
[0051] In this embodiment, since there is a limiting rope 220 between each two adjacent filter plates 300, the limiting rope 220 determines the maximum distance between adjacent filter plates 300, thus preventing the distance between adjacent filter plates 300 from being too large. At the same time, since the limiting rope 220 connects each filter plate 300 together, when the filter plate 300 at the end is slid, the other filter plates 300 can be moved together.
[0052] It should be emphasized here that the technical solution provided in this application only discloses the relevant features of how to prevent filter cake from sticking to the filter plates 300 in an automatic unloading filter press. An automatic unloading filter press should at least also have a pressure assembly that tightly presses the individual filter plates 300 together, a conveyor belt to receive falling filter plates 300, an airtight pipeline for controlling the expansion of the internal diaphragms of the filter plates 300, and inlet and outlet water pipelines for introducing slurry and removing water. Since the above features are mature prior art, although this application does not specifically elaborate on the above technical features, it does not mean that the technical solution of this application suffers from insufficient disclosure of technical content.
[0053] To better understand this application, the following is combined with... Figures 1 to 2 The technical solution of this application is described in detail below:
[0054] After the automatic unloading filter press completes the filtration process, the drive trolley 210 sequentially slides the filter plates 300. This gradually increases the distance between the filter plates 300, allowing the filter cake to fall through the gaps. Since each adjacent filter plate 300 is separated by a limiting rope 220, the limiting rope 220 determines the maximum distance between adjacent filter plates 300, preventing excessive spacing. The drive component 420 drives the first slide block 411 to translate, thereby adjusting the relative position of the first slide block 411 and the filter plate 300 so that the first slide block 411 can be aligned with the target filter plate 300. The switching unit 413 switches the stop lever 412 to the first position, thus blocking the movement of the filter plates 300. This brief blocking of the filter plates 300 causes them to vibrate, effectively preventing the filter cake from sticking to the filter plates 300. The switching unit 413 can be used to switch the stop bar 412 to the second position. Without the obstruction of the stop bar 412, the filter plate 300 can move freely. This allows the limiting member 410 to align with the next filter plate 300. The automatic unloading filter press described above can vibrate the filter plate 300 during the release of the filter cake, thereby effectively preventing the filter cake from sticking to the filter plate 300.
[0055] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Any other corresponding changes and modifications made based on the technical concept of this application should be included within the scope of protection of the claims of this application.
Claims
1. An automatic unloading filter press, characterized in that, include: frame; A plurality of filter plates are arranged side by side and slidably disposed on the frame, and the filter plates are capable of deflecting relative to the frame at a set angle; A movable component, which is drivenly connected to the filter plate, so as to sequentially drive the filter plate to slide relative to the frame in a first direction; as well as A blocking assembly includes a limiting member and a driving member, the driving member being connected to the limiting member and used to drive the limiting member to move in a second direction, the limiting member extending at least partially to the upper or lower side of the blocking filter cake to move in a first direction; wherein the first direction is opposite to the second direction.
2. The automatic unloading filter press according to claim 1, characterized in that, The limiting member includes a first slide block, a stop bar, and a switching part. The first slide block is slidably disposed on the frame along the arrangement direction of the plurality of filter plates. The driving member is convexly connected to the first slide block to drive the first slide block to slide along the second direction. The stop bar is movably disposed on the first slide block. The movement trajectory of the stop bar has a first position that blocks the movement of the filter plates and a second position that moves away from the filter plates to allow the filter plates to move. The switching part is convexly connected to the stop bar to drive the stop bar to switch between the first position and the second position.
3. The automatic unloading filter press according to claim 2, characterized in that, One end of the stop lever is rotatably mounted on the first slide block. The switching part includes a cylinder, the piston rod of the cylinder is hinged to the stop lever, and the cylinder body of the cylinder is hinged to the first slide block.
4. The automatic unloading filter press according to claim 3, characterized in that, The frame has a guide rod, and the first slide has a guide hole. The guide hole is fitted onto the guide rod so that the first slide slides along the guide rod.
5. The automatic unloading filter press according to claim 4, characterized in that, The slide block has a threaded hole, and the driving component includes a lead screw and a motor. The lead screw is screwed to the threaded hole, and the motor drives the lead screw to rotate, thereby pushing the slide block to slide along the guide rod.
6. The automatic unloading filter press according to claim 1, characterized in that, The limiting member includes a second slide block and a flexible stop bar. The second slide block is slidably disposed on the frame along the arrangement direction of the plurality of filter plates. The driving member is tractively connected to the second slide block to drive the second slide block to slide along the second direction. One end of the flexible stop bar is connected to the second slide block, and the other end of the flexible stop bar is used to block the filter plate. The flexible stop bar contacts the moving filter plate to make the filter plate flip. The flexible stop bar can be bent under the push of the filter plate so that the moving filter plate can disengage from the flexible stop bar.
7. The automatic unloading filter press according to claim 1, characterized in that, The moving component includes a drive trolley that is slidably disposed on the frame and can be aligned with any of the filter plates. The drive trolley has a third state in which it is connected to the filter plate to drive the filter plate, and a fourth state in which it is disengaged from the filter plate and adjusts its relative position to the filter plate.
8. The automatic unloading filter press according to claim 7, characterized in that, The limiting member blocks the top of the filter plate, causing the filter plate to flip over.
9. The automatic unloading filter press according to claim 7, characterized in that, The driving trolley has an electromagnet. When the driving trolley is in the third state, the electromagnet is magnetic and attracts the bottom end of the filter plate. When the driving trolley is in the fourth state, the electromagnet loses its magnetic force, so that the driving trolley can move relative to the filter plate.
10. The automatic unloading filter press according to claim 7, characterized in that, The moving component includes multiple limiting ropes, which are spaced apart between several filter plates, and the two ends of each limiting rope are respectively connected to two adjacent filter plates.