Filter screen for solid-liquid separation

Abstract

The utility model relates to the technical field of production of centrifugal bags for filtering and solid-liquid separation, and provides a filter screen for solid-liquid separation, which comprises a filter screen, and top support cloth and bottom support cloth are respectively arranged at the top and the bottom of the filter screen. A structure is designed in the centrifugal machine to ensure that the centrifugal net can work stably in the high-speed rotating process, the hard and thick round bottom supporting cloth is used at the bottom so as to support and maintain the shape of the filter net under high-speed rotating and prevent the filter net from deforming, and the top supporting cloth with the thickness of 5 cm is arranged at the top and is mainly used for increasing the weight and lowering the cost. The filter screen is mounted in the middle of the centrifugal screen to prevent the filter screen from falling off from the top of the centrifugal screen, and the 180-mesh filter screen is mounted in the middle of the centrifugal screen and is responsible for actual filtering work, preventing the filter screen from falling off and ensuring the solid-liquid separation effect; according to the utility model, the synergistic effect of the inserting rod, the clamping plate, the movable plate and the fastening plate is combined, so that the bottom support cloth is stably mounted at the bottom of the filter screen, and any displacement in the high-speed rotation process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of production of centrifugal bags for filtering solid-liquid separation, and specifically relates to a filter net for solid-liquid separation. Background Art

[0002] During the filtration process of the centrifuge, the filter mesh made of a full filter mesh is prone to fall off the side of the high-speed centrifuge, and the bottom is easily deformed and thrown onto the inner edge of the filter mesh, causing residue to enter the liquid during filtration, affecting the quality of the filtered liquid material during the filtration process. Therefore, a solid-liquid separation filter mesh is needed. Utility Model Content

[0003] In order to address the deficiencies of the prior art, the present invention provides a filter screen for solid-liquid separation, which solves the technical problem in the above-mentioned background technology that the solid-liquid separation of liquid materials affects the separation of residues in the liquid.

[0004] The technical solution of the utility model is as follows: a filter screen for solid-liquid separation, comprising a filter screen, wherein a top support cloth and a bottom support cloth are respectively provided at the top and bottom of the filter screen, and the top support cloth is threadedly connected to the outer wall of the top of the filter screen;

[0005] And, an installation component for assembling a bottom support cloth is provided at the bottom of the filter.

[0006] Preferably, a mounting ring is fixedly connected to the inner wall of the bottom end of the filter screen, and the bottom of the mounting ring is flush with the bottom end of the filter screen.

[0007] Preferably, the installation assembly includes an insertion rod with a rectangular groove provided inside, two clamping plates symmetrically arranged inside the rectangular groove, a limiting assembly for limiting the sliding freedom of the two clamping plates provided inside the rectangular groove, and a power assembly for pushing the two clamping plates to move towards each other and retract into the rectangular groove and allowing the insertion rod to pass through the bottom support cloth and the mounting ring in sequence provided at the bottom end of the insertion rod.

[0008] Preferably, the limiting assembly includes two limiting plates symmetrically fixed on the front and rear sides of the clamping plate, and the inner wall of the rectangular groove is provided with two sliding grooves for the two limiting plates to slide.

[0009] Preferably, the power assembly includes an inner rod slidably sleeved inside the insertion rod, the top end of the inner rod is fixedly connected to a movable plate, a return spring is provided inside the rectangular groove, both ends of the return spring are fixedly connected to the movable plate and the rectangular groove respectively, two movable rods are symmetrically hinged on both sides of the movable plate, and the ends of the two movable rods away from the movable plate are hinged to two clamping plates respectively, and the outer wall of the insertion rod is provided with a fastening assembly for fastening the bottom support cloth to ensure the firmness of the installation at the bottom of the mounting ring.

[0010] Preferably, the fastening assembly includes a limiting ring fixed to the outer wall of the bottom end of the insertion rod, the outer wall of the insertion rod is threadedly connected with a fastening plate, and the top of the fastening plate is in close contact with the bottom of the support cloth.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model designs a structure inside the centrifuge to ensure that the centrifugal screen can work stably during high-speed rotation. A harder and thicker circular bottom support cloth is used at the bottom to support and maintain the shape of the filter screen under high-speed rotation to prevent it from deformation. The top is equipped with a 5 cm thick top support cloth, which is mainly used to increase the weight to prevent the filter screen from falling from the top of the centrifugal screen. A 180-mesh filter screen is installed in the middle, which is responsible for the actual filtering work, preventing the filter screen from falling off, and ensuring the effect of solid-liquid separation.

[0013] 2. The utility model adopts a multi-level fixing design, combined with the synergistic effect of the plug rod, the card plate, the movable plate and the fastening plate, to ensure the stable installation of the bottom support cloth at the bottom of the filter screen, avoiding any displacement during high-speed rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the bottom-up structure proposed by the utility model;

[0017] Figure 3 This is a cross-sectional view and a partially enlarged structural diagram of the utility model;

[0018] Figure 4 This is a schematic diagram of the partial cross-sectional structure proposed by the utility model.

[0019] In the figure: 1. filter screen; 11. mounting ring; 2. top support cloth; 3. bottom support cloth; 4. mounting assembly; 41. insertion rod; 42. clamping plate; 43. power assembly; 431. inner rod; 432. movable plate; 433. movable rod; 44. fastening assembly; 441. limiting ring; 442. fastening plate; 434. return spring. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] A solid-liquid separation filter is a device used to separate solid particles from liquids. It is widely used in many industrial and laboratory processes, such as water treatment, food processing, chemical manufacturing, and pharmaceutical manufacturing. Its main function is to remove solid matter (such as particles and suspended matter) from liquids using the principles of physical filtration, thereby obtaining a clean liquid.

[0022] During the filtration process of the centrifuge, the filter screen made of the filter screen is easy to fall off the side of the high-speed centrifuge, and the bottom is easy to deform and fall on the inner side of the filter screen, causing residue to enter the liquid during filtration, affecting the quality of the filtered liquid material during the filtration process. Figures 1-4 , this embodiment provides a filter screen for solid-liquid separation, including a filter screen 1, which is a 180-mesh filter screen 1. The 80-mesh filter screen 1 is a filter screen with a fine pore size and is used for fine filtration. The "180-mesh" here refers to the mesh density of the filter screen 1, that is, the number of grids per inch is 180. The higher the mesh number, the smaller the pore size, and the finer the filtered particulate matter. Specifically, the pore size of the 180-mesh filter screen 1 is approximately 0.085 mm (85 microns), which can effectively screen out particulate matter larger than this size. Using the 180-mesh filter screen 1 in a centrifuge can effectively perform solid-liquid separation, ensuring that larger solid particles are filtered out and the liquid can pass through smoothly. This fine filter screen 1 helps to improve the efficiency of centrifugal separation and ensure the smooth progress of the process.

[0023] refer to Figure 1-Figure 2 As shown, during the filtration process of the centrifuge, the filter mesh made of the filter mesh is easy to fall off from the edge of the high-speed centrifuge, and the bottom is easy to deform and throw on the inner edge of the filter mesh, resulting in slag entering the liquid during filtration, affecting the quality of the filtered liquid material during the filtration process. In order to prevent the filter mesh from falling off and achieve the effect of solid-liquid separation, the following settings are made: the top and bottom of the filter mesh 1 are respectively provided with a top supporting cloth 2 and a bottom supporting cloth 3, the top supporting cloth 2 is threadedly connected to the outer wall of the top of the filter mesh 1, and a harder and thicker round bottom supporting cloth 3 is used at the bottom of the centrifugal mesh in the centrifuge. The purpose is to prevent the filter mesh from deforming during the high-speed rotation of the centrifuge. The top 5 cm top supporting cloth 2 is used to increase the weight and prevent the filter mesh from falling from the top of the centrifugal mesh. The 180 mesh filter mesh 1 in the middle plays a real filtering role, preventing the filter mesh from falling off and achieving the effect of solid-liquid separation.

[0024] reference Figure 3-Figure 4As shown, the inner wall of the bottom end of the filter screen 1 is fixedly connected with a mounting ring 11, and the bottom of the mounting ring 11 is flush with the bottom end of the filter screen 1. A mounting assembly 4 for assembling the bottom support cloth 3 is arranged at the bottom of the filter screen 1. The mounting assembly 4 includes an insertion rod 41, and a rectangular groove is opened inside the insertion rod 41. Two card plates 42 are symmetrically arranged inside the rectangular groove. A limit assembly is provided inside the rectangular groove to limit the sliding freedom of the two card plates 42. The bottom end of the insertion rod 41 is provided with a power group that pushes the two card plates 42 to move back into the rectangular groove and enables the insertion rod 41 to pass through the bottom support cloth 3 and the mounting ring 11 in sequence. Part 43, the limit assembly includes two limit plates symmetrically fixed on the front and rear sides of the card plate 42, and the inner wall of the rectangular groove is provided with two sliding grooves for the two limit plates to slide. The power assembly 43 includes an inner rod 431 slidably sleeved inside the insertion rod 41, and the top end of the inner rod 431 is fixedly connected to a movable plate 432. A return spring 434 is provided inside the rectangular groove, and the two ends of the return spring 434 are respectively fixedly connected to the movable plate 432 and the rectangular groove. The function of the return spring 434 ensures that the inner rod 431 can automatically return to the predetermined position to maintain the stability of the assembly and the predetermined docking position. The two sides of the movable plate 432 are symmetrically hinged with two movable rods 433. The ends of the two movable rods 433 away from the movable plate 432 are respectively hinged to the two clamping plates 42. The inner rod 431 is pushed up to make the inner rod 431 slide up in the insertion rod 41. The upward movement of the inner rod 431 drives the movable plate 432 to squeeze the return spring 434. At the same time, the two movable rods 433 drive the two clamping plates 42 to move back into the rectangular groove, and the insertion rod 41 is passed through the bottom support cloth 3 and the mounting ring 11 in sequence. The insertion rod 41 first passes through the bottom support cloth 3 and the mounting ring 11. This setting is to fix the two components to a common axis to prepare for the subsequent fixing operation. After passing through, the inner rod 431 is released, and the inner rod 431 is reset and moved down by the return spring 434, which means that when the inner rod 43 When the inner rod 431 is released, it will move downward due to the action of the return spring 434. The purpose of this process is to place the inner rod 431 in a predetermined position for subsequent operations. The downward movement of the inner rod 431 causes the movable plate 432 to move downward, and the movable plate 432 is connected to the two movable rods 433. Due to the downward movement of the movable plate 432, the two movable rods 433 push the two clamping plates 42 so that the two clamping plates 42 move backward and protrude out of the rectangular groove. The insertion rod 41 is moved downward so that the bottom of the two clamping plates 42 contacts the top of the mounting ring 11. This step ensures that the clamping plates 42 can be correctly docked with the mounting ring 11, thereby achieving fixation. At the same time, the clamping plates 42 provide additional supporting force through contact with the mounting ring 11, ensuring that the bottom support cloth 3 will not move or loosen in the filter screen 1.The outer wall of the insertion rod 41 is provided with a fastening component 44 for fastening the bottom support cloth 3 to be installed firmly at the bottom of the mounting ring 11. The fastening component 44 includes a limiting ring 441 fixed to the outer wall of the bottom end of the insertion rod 41. The outer wall of the insertion rod 41 is threadedly connected with a fastening plate 442. The top of the fastening plate 442 is tightly against the bottom of the support cloth 3. After the bottom of the two clamping plates 42 contacts the top of the mounting ring 11, the fastening plate 442 is rotated to move it forward on the thread of the outer wall of the insertion rod 41 and tightly against the bottom of the bottom support cloth 3. The fastening plate 442 is connected to the insertion rod 41 by threads. This connection method has good stability and can firmly fix the bottom support cloth 3 at its bottom, and then fix the fastening plate 442 in the correct position, so that the bottom support cloth 3 is firmly installed in the predetermined position.

[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A filter screen for solid-liquid separation, comprising a filter screen (1), characterized in that: The top and bottom of the filter screen (1) are respectively provided with a top supporting cloth (2) and a bottom supporting cloth (3), and the top supporting cloth (2) is threadedly connected to the outer wall of the top end of the filter screen (1); And, a mounting assembly (4) is provided at the bottom of the filter screen (1) for assembling the bottom support cloth (3).

2. A filter screen for solid-liquid separation according to claim 1, characterized in that: A mounting ring (11) is fixedly connected to the inner wall of the bottom end of the filter screen (1), and the bottom of the mounting ring (11) is flush with the bottom end of the filter screen (1).

3. The filter screen for solid-liquid separation according to claim 1, characterized in that: The mounting assembly (4) comprises an insert rod (41), a rectangular groove is provided inside the insert rod (41), two clamping plates (42) are symmetrically arranged inside the rectangular groove, a limiting assembly is provided inside the rectangular groove for limiting the sliding freedom of the two clamping plates (42), and a power assembly (43) is provided at the bottom end of the insert rod (41) for pushing the two clamping plates (42) to move relative to each other and retract into the rectangular groove and allowing the insert rod (41) to sequentially penetrate the bottom support cloth (3) and the mounting ring (11).

4. The filter screen for solid-liquid separation according to claim 3, characterized in that: The limiting assembly comprises two limiting plates symmetrically fixed on the front and rear sides of the clamping plate (42); the inner wall of the rectangular groove is provided with two sliding grooves for the two limiting plates to slide.

5. The filter screen for solid-liquid separation according to claim 3, characterized in that: The power assembly (43) includes an inner rod (431) that is slidably sleeved inside the insertion rod (41), the top end of the inner rod (431) is fixedly connected to a movable plate (432), a return spring (434) is provided inside the rectangular groove, and the two ends of the return spring (434) are respectively fixedly connected to the movable plate (432) and the rectangular groove, two movable rods (433) are symmetrically hinged on both sides of the movable plate (432), and the ends of the two movable rods (433) away from the movable plate (432) are respectively hinged to the two clamping plates (42), and the outer wall of the insertion rod (41) is provided with a fastening assembly (44) for fastening the bottom support cloth (3) to the bottom of the mounting ring (11) for fastening.

6. The filter screen for solid-liquid separation according to claim 5, characterized in that: The fastening assembly (44) includes a limiting ring (441) fixed to the outer wall of the bottom end of the insertion rod (41), and the outer wall of the insertion rod (41) is threadedly connected to a fastening plate (442), and the top of the fastening plate (442) is tightly attached to the bottom of the support cloth (3).

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