Filter pressing assembly and filter pressing device with same

Abstract

The invention provides a filter pressing assembly and a filter pressing device with the filter pressing assembly, and the filter pressing assembly comprises a filter plate; the stop structure is arranged at the top of the filter plate and protrudes out of the filter plate; the hanging frame structure is arranged at the top of the filter plate in a lifting manner and is positioned above the stop structure, and the hanging frame structure is provided with an initial position and a lifting position; the filter bag is mounted on the hanger structure and is used for accommodating slurry; wherein after the slurry in the filter bag is extruded into a filter cake, and when the hanger structure moves from the initial position to the lifting position, the stop structure is matched with the filter cake in a limiting manner, so that the filter cake is separated from the interior of the filter bag. According to the technical scheme, the problem that in the prior art, the discharging difficulty of the filter cakes is large is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of filter presses, and in particular, to a filter pressing assembly and a filter pressing device having the same. Background Art

[0002] As a key equipment for solid-liquid separation, filter presses are widely used in industries such as environmental protection and mining. Its main function is to separate the solid phase and the liquid phase during the filtration process to form a solid-phase filter cake. For traditional filter presses, especially plate and frame filter presses, after the filter pressing is completed, the filter plates need to be pulled apart to discharge the filter cake. However, when dealing with coal slime with low particle size and strong viscosity, due to the large adhesion force between the formed filter cake and the filter cloth, traditional discharging methods, such as relying on the weight of the filter cake to fall off by itself or slightly vibrating through the cylinder carried by the plate pulling trolley, often cannot effectively make the filter cake naturally separate from the filter cloth, resulting in the problem of insufficient discharging. Especially in the design of the stacked bag filter press, the filter chamber is formed by filter bags, and the filter bags are sealed around and only the bottom is open for discharging. Although this structure is beneficial to the pressure transmission during the pressing process and reducing the moisture content of the filter cake, it also increases the difficulty of discharging. The filter cake will be pressed into the inside of the filter bag during the pressing process and be in close contact with the side of the filter bag. And due to the deformation of the filter bag, the filter cake may get stuck in the filter bag, making it impossible to reliably complete the discharging even with a plate pulling trolley with a vibrating function.

[0003] In the related art, the plate pulling trolley with a vibrating function can, to a certain extent, improve the discharging process. However, due to its design limitations, such as the limitations of the cylinder stroke and the thrust size, the vibrating effect is limited. Especially when dealing with extremely viscous materials, it cannot overcome the strong adhesion force between the filter cake and the filter cloth. Summary of the Invention

[0004] The main purpose of the present invention is to provide a filter pressing assembly and a filter pressing device having the same to solve the problem of difficult discharging of the filter cake in the related art.

[0005] To achieve the above object, according to one aspect of the present invention, a filter pressing assembly is provided, including: a filter plate; a stop structure provided on the top of the filter plate, the stop structure protruding from the filter plate; a hanging structure provided on the top of the filter plate in a liftable manner and located above the stop structure, the hanging structure having an initial position and a lifted position; a filter bag installed on the hanging structure, the filter bag being used to accommodate the slurry; wherein, when the slurry in the filter bag is squeezed into a filter cake, when the hanging structure moves from the initial position to the lifted position, the stop structure is in limit cooperation with the filter cake to make the filter cake separate from the inside of the filter bag.

[0006] Further, the filter plate has a first surface and a second surface, and the stop structure protrudes from the first surface and the second surface respectively.

[0007] Further, a guiding and limiting portion is provided on the stopping structure, and a partial structure of the filter bag is matched with the guiding and limiting portion.

[0008] Further, the stopping structure includes a limiting plate, the guiding and limiting portion is a strip-shaped hole, the strip-shaped hole is provided on the limiting plate, and a partial structure of the filter bag is inserted into the strip-shaped hole.

[0009] Further, the filter bag includes a bag body and a lifting portion provided at the top of the bag body, and the lifting portion is inserted into the guiding and limiting portion.

[0010] Further, the filter pressing assembly further includes a first stopping member provided at the bottom of the filter plate, and the first stopping member extends along the width direction of the filter plate.

[0011] Further, the first stopping member includes a first elastic block.

[0012] Further, the filter pressing assembly further includes a second stopping member provided on the filter plate, the second stopping member extends along the height direction of the filter plate, an avoidance recess is provided on the second stopping member, the second stopping member divides the filter bag into a first bag portion and a second bag portion, and the avoidance recess is located between the first bag portion and the second bag portion so that the first bag portion and the second bag portion communicate with each other.

[0013] Further, in a direction perpendicular to the filter plate, the first stopping member protrudes from the second stopping member, and / or the second stopping member is a second elastic block.

[0014] Further, the filter pressing assembly further includes a guiding structure provided between the hanging frame structure and the filter plate.

[0015] Further, the guiding structure includes a guiding column and a guiding cylinder, one of the guiding column and the guiding cylinder is provided on the filter plate, and the other of the guiding column and the guiding cylinder is provided on the hanging frame structure.

[0016] Further, the hanging frame structure includes a base frame extending along the width direction of the filter plate and a connecting beam, the connecting beam is provided on the base frame, the base frame is provided on the top of the filter plate, and a plurality of connecting protrusions are provided at intervals on the connecting beam.

[0017] According to another aspect of the present invention, there is provided a filter pressing device, including: a base frame; a pressing structure provided on the base frame; a plurality of filter pressing assemblies provided on the base frame, the pressing structure being capable of pressing the filter pressing assemblies; a frame structure movably provided on the base frame; a lifting structure provided on the frame structure, the lifting structure being capable of cooperating with the hanging frame structure of the filter pressing assembly to switch the hanging frame structure between an initial position and a lifted position; wherein, the filter pressing assembly is the above-mentioned filter pressing assembly.

[0018] Further, the lifting structure includes a lifting member and a first connecting member, the lifting member is connected to the first connecting member, a second connecting member is provided on the hanging frame structure, and the first connecting member and the second connecting member can be connected.

[0019] Further, the first connecting member includes a connecting block, a protruding portion is provided on the connecting block, a connecting groove is provided on the second connecting member, and a avoiding portion that cooperates with the protruding portion is provided in the connecting groove.

[0020] Applying the technical solution of the present invention, the stop structure is provided at the top of the filter plate and protrudes from the filter plate. The hanging frame structure is liftably provided at the top of the filter plate and is located above the stop structure. The hanging frame structure has an initial position and a lifted position. The filter bag is installed on the hanging frame structure. Through the above settings, before the pressure filtration operation, the slurry is poured into the filter bag. After squeezing the filter bag, the slurry is squeezed into a filter cake. At this time, the hanging frame structure can move from the initial position to the lifted position. During the upward movement of the filter bag, the stop structure can cooperate with the filter cake to stop, so that the filter cake can be separated from the filter bag. And such a separation method is simple and efficient, which can ensure that the filter cake is separated from the filter bag. Therefore, the technical solution of the present application effectively solves the problem of the relatively large difficulty in discharging the filter cake in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 Shows a schematic three-dimensional structure diagram of an embodiment of a pressure filtration assembly according to the present invention;

[0023] Figure 2 Shows Figure 1 a schematic three-dimensional structure diagram of the hanging frame structure of the pressure filtration assembly in the initial position;

[0024] Figure 3 Shows Figure 1 a schematic three-dimensional structure diagram of the hanging frame structure of the pressure filtration assembly in the lifted position;

[0025] Figure 4 Shows Figure 1 a schematic three-dimensional structure diagram of a partial structure of the pressure filtration assembly;

[0026] Figure 5 Shows Figure 1 a schematic three-dimensional structure diagram of the stop structure of the pressure filtration assembly;

[0027] Figure 6 Shows Figure 1 a schematic three-dimensional structure diagram of the hanging frame structure of the pressure filtration assembly;

[0028] Figure 7 Shows Figure 1 a schematic three-dimensional structure diagram of the filter bag of the pressure filtration assembly;

[0029] Figure 8 shows a Figure 1 schematic diagram of the movement of the filter cake of the filter press assembly;

[0030] Figure 9 shows a three-dimensional structural schematic diagram of an embodiment of a filter press device according to the present invention;

[0031] Figure 10 shows a Figure 9 three-dimensional structural schematic diagram of the lifting structure of the filter press device at the initial stage;

[0032] Figure 11 shows a Figure 9 three-dimensional structural schematic diagram of the lifting structure of the filter press device when it is lifted;

[0033] Figure 12 shows a Figure 9 three-dimensional structural schematic diagram of the frame structure and the lifting structure of the filter press device.

[0034] Among them, the above-mentioned drawings include the following reference numerals:

[0035] 10, filter plate; 20, stop structure; 21, guiding and limiting part; 211, strip hole; 22, limiting plate; 30, hanging frame structure; 31, second connecting piece; 311, connecting groove; 312, avoiding part; 32, base frame; 33, connecting beam; 331, connecting protrusion; 40, filter bag; 41, bag body; 42, lifting part; 51, first stop piece; 52, second stop piece; 521, avoiding concave part; 60, guiding structure; 61, guiding column; 62, guiding cylinder; 70, base frame; 80, pressing structure; 90, frame structure; 100, lifting structure; 101, lifting member; 102, first connecting piece; 1021, connecting block; 1022, protruding part. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0038] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] As Figures 1 to 3 and Figure 6 and Figure 8 As shown, in this embodiment, the filter press assembly includes: a filter plate 10, a stop structure 20, a hanging structure 30, and a filter bag 40. The stop structure 20 is disposed on the top of the filter plate 10, and the stop structure 20 protrudes from the filter plate 10. The hanging structure 30 is disposed on the top of the filter plate 10 in a liftable manner and is located above the stop structure 20. The hanging structure 30 has an initial position and a lifted position. The filter bag 40 is mounted on the hanging structure 30, and the filter bag 40 is used to contain the slurry. Wherein, when the slurry in the filter bag 40 is squeezed into a filter cake, when the hanging structure 30 moves from the initial position to the lifted position, the stop structure 20 is in limit cooperation with the filter cake so that the filter cake detaches from the filter bag 40.

[0040] Applying the technical solution of this embodiment, the stop structure 20 is arranged on the top of the filter plate 10 and protrudes from the filter plate 10. The hanging rack structure 30 is arranged on the top of the filter plate 10 in a liftable manner and is located above the stop structure 20. The hanging rack structure 30 has an initial position and a lifted position. The filter bag 40 is installed on the hanging rack structure 30. Through the above settings, before the pressure filtration operation, the slurry is poured into the filter bag 40. After squeezing the filter bag 40, the slurry is squeezed into a filter cake. At this time, the hanging rack structure 30 can move from the initial position to the lifted position. During the upward movement of the filter bag 40, the stop structure 20 can cooperate with the filter cake to stop, so that the filter cake can be separated from the filter bag 40. And this separation method is simple and efficient, which can ensure that the filter cake is separated from the filter bag 40. Therefore, the technical solution of this embodiment effectively solves the problem of the difficult discharge of the filter cake in the related art.

[0041] Specifically, in this embodiment, a hanging rack structure 30 is arranged above the filter plate 10. The hanging rack structure 30 can be separated from the main body of the filter plate 10, and the hanging rack structure 30 is allowed to lift a certain distance away from the filter plate 10. A guiding structure 60 is arranged between the filter plate 10 and the hanging rack structure 30 to ensure the relative position with the filter plate 10 when the hanging rack structure 30 is separated. The filter bag 40 is sewn from a specially designed high-strength filter cloth and can withstand the internal pressure generated during the feeding and pressing stages. The overall shape is a whole trapezoid, which is convenient for discharging. The feeding ports of the filter bag 40 are arranged on both sides of the filter bag 40 and are connected to the feeding pipe.

[0042] A stop structure 20 is arranged between the hanging rack structure 30 and the feeding space of the filter bag 40, which coincides with the top surface projection area of the filter bag 40. When the hanging rack structure 30 lifts the filter bag 40, the top surface of the filter bag 40 contacts the stop structure 20, forcing a relative displacement between the filter cake and the filter bag 40 to complete the discharging.

[0043] It should be noted that in the stacked bag filter press, there is no longer a filter cloth in the traditional sense. Instead, it is replaced by a filter bag sewn from high-strength filter cloth. All sides are sealed, and only the bottom is opened for convenient discharging. During the production process, the filter bag itself forms a filter chamber. Different from the filter plate of the traditional filter press, the filter plates of the stacked bag filter press do not have protrusions around, and the filter plates are no longer supported by a rigid structure, but are elastic bodies fixed on the filter plates. The elastic body not only functions to limit the distance between the filter plates, but also seals the bottom opening of the filter bag. Under the support of such a filter bag and filter plate structure, the main oil cylinder can directly act on the pressing process, and the pressure is transmitted by the filter cake itself, so as to obtain a filter cake with a lower moisture content. However, during discharging, more surfaces of the filter cake will contact the filter bag, and at the same time, the deformation of the filter bag during the pressing process will also limit the falling of the filter cake, which means that the discharging difficulty increases.

[0044] To address the above technical problems, the filter chamber is formed by filter bags 40. The filter bags 40 themselves are made of flexible materials. During the pressing process, each surface of the filter bags 40 deforms due to the large pressure exerted by the filter cake. The filter cloth on each surface except the pressing surface bulges outwards to form an arc surface. At this time, a stop structure 20 is provided above the upper cover of the filter bag 40. By lifting the filter bag 40, the arc surface generated by the filter cake is brought into contact with the upper plane. After contact, it continues to rise and a corresponding force is applied. This force acts directly on the filter cake, giving the filter cake a downward force. Since the filter bag 40 is made of flexible materials and has a certain elastic deformation amount, it can still move upward for a certain distance without tearing. In this way, a relative displacement is generated between the filter cake and the filter bag 40, breaking the adhesion between the filter cake and the filter cloth. Thus, the discharging effect is achieved, as Figure 8 shown.

[0045] As Figures 1 to 4 shown, in this embodiment, the filter plate 10 has a first surface and a second surface, and the stop structure 20 protrudes from the first surface and the second surface respectively. The above setting enables the filter bags 40 on both sides of the filter plate 10 to be stopped by the stop structure, thereby improving the efficiency of pressure filtration.

[0046] Moreover, even if only one filter bag 40 is provided, and the stop structure 20 protrudes from the first surface and the second surface respectively, it can ensure that the filter cake contacts the stop structure 20 during discharging regardless of how the filter plate 10 is placed, thus improving the flexibility and reliability of discharging.

[0047] As Figures 1 to 5 shown, in this embodiment, a guiding and limiting portion 21 is provided on the stop structure 20, and a partial structure of the filter bag 40 cooperates with the guiding and limiting portion 21. The guiding and limiting portion 21 positions and guides the filter bag 40 to ensure the stability of the filter bag 40 during the lifting process, avoiding the filter bag 40 from shifting or twisting, thereby ensuring effective contact between the filter cake and the stop structure 20. That is, the positioning of the filter bag 40 is more accurate, the discharging process is smoother, and the risk of damage to the filter bag 40 is reduced.

[0048] As Figure 4 and Figure 5 shown, in this embodiment, the stop structure 20 includes a limiting plate 22, and the guiding and limiting portion 21 is a strip-shaped hole 211. The strip-shaped hole 211 is provided on the limiting plate 22, and a partial structure of the filter bag 40 is inserted into the strip-shaped hole 211. Using the strip-shaped hole 211 on the limiting plate 22 as the guiding and limiting portion 21, the lifting portion 42 of the filter bag 40 is inserted into the strip-shaped hole 211. Through the cooperation between the lifting portion 42 and the strip-shaped hole 211, the stable lifting and positioning of the filter bag 40 are realized.

[0049] Specifically, the lifting part 42 of the filter bag 40 can move smoothly along the strip-shaped hole 211 during the lifting process, ensuring the relative displacement between the filter bag 40 and the filter plate 10, and thus realizing the automatic shedding of the filter cake.

[0050] As Figure 1 and Figure 7 shown, in this embodiment, the filter bag 40 includes a bag body 41 and a lifting part 42 provided at the top of the bag body 41. The lifting part 42 is inserted into the guiding and limiting part 21. Through the cooperation of the lifting part 42 and the guiding and limiting part 21, the stable lifting of the filter bag 40 during the discharging process is realized. The setting of the lifting part 42 not only facilitates the installation and disassembly of the filter bag 40, but also ensures the linear movement of the filter bag 40 during lifting, avoiding the deviation of the filter bag 40 during the movement process and affecting the discharging effect.

[0051] As Figures 1 to 4 shown, in this embodiment, the pressure filtration assembly further includes a first stop member 51 provided at the bottom of the filter plate 10. The first stop member 51 extends along the width direction of the filter plate 10. The first stop member 51 can support the filter bag 40, and thus can prevent the bottom of the filter bag 40 from protruding downward from the filter plate 10, so as to prevent the occurrence of parts that cannot be pressure-filtered.

[0052] As Figures 1 to 4 shown, in this embodiment, the first stop member 51 includes a first elastic block. The first elastic block can be deformed, so that it will not affect the pressure filtration operation.

[0053] The material of the first elastic block is rubber or silica gel. The rubber material or silica gel material has good elasticity and wear resistance, ensuring that the first elastic block can provide a stable supporting force during the high-pressure filtration process and has a long service life.

[0054] Specifically, there are two first stop members 51, and the two first stop members 51 are respectively arranged on the first surface and the second surface.

[0055] As Figures 1 to 4 shown, in this embodiment, a guiding inclined surface is provided at the top of the first stop member 51. In the direction from the top of the filter plate 10 to the bottom of the filter plate 10, the distance between the guiding inclined surface and the filter plate 10 gradually increases. The design principle of the guiding inclined surface is to utilize the guiding effect of the inclined surface to facilitate the flow of water during the pressure filtration process and avoid the accumulation of water in one place and inability to drain. At the same time, during the pressure filtration process, the guiding inclined surface can guide the filtrate to be evenly distributed, improving the filtration efficiency.

[0056] As Figures 1 to 4As shown, in this embodiment, the first stopper 51 is connected to the filter plate 10 through a connection structure. The connection structure includes a groove body and a block body. The block body can be inserted into the groove body. One of the groove body and the block body is arranged on the first stopper 51, and the other of the groove body and the block body is arranged on the filter plate 10. The connection structure realizes the firm connection between the first stopper 51 and the filter plate 10 through the cooperation of the groove body and the block body, and is convenient for disassembly and assembly, simplifying the maintenance process. This can improve the connection strength and stability between the filter plate 10 and the first stopper 51, reduce the maintenance cost, and enhance the maintainability of the equipment.

[0057] Specifically, the groove body is a dovetail groove. The design of the dovetail groove utilizes its unique shape to provide stronger connection strength and stability, preventing the first stopper 51 from loosening or falling off during the high-pressure filtration process.

[0058] In an embodiment not shown in the figure, the groove body can also be a rectangular groove, a triangular groove or other shaped groove bodies. The shape of the block body is adapted to the shape of the connection groove.

[0059] As Figures 1 to 4 shown, in this embodiment, the filter press assembly further includes a second stopper 52 arranged on the filter plate 10. The second stopper 52 extends along the height direction of the filter plate 10. An avoidance recess 521 is arranged on the second stopper 52. The second stopper 52 divides the filter bag 40 into a first bag portion and a second bag portion. The avoidance recess 521 is located between the first bag portion and the second bag portion to communicate the first bag portion and the second bag portion. By dividing the filter bag 40 into two parts by the second stopper 52, the design of the avoidance recess 521 enables the filter bag 40 to better adapt to the distribution of the slurry during the filter press process. At the same time, during discharging, the second stopper 52 generates a groove longitudinally on the filter cake, making the filter cake have an ultra-thin defect, which helps the filter cake to break and fall off easily during the discharging process.

[0060] It should be noted that the slurry can move between the first bag portion and the second bag portion through the position of the avoidance recess 521, thereby making the slurry in the first bag portion and the second bag portion more uniform.

[0061] As Figures 1 to 4 shown, in this embodiment, along the direction perpendicular to the filter plate 10, the first stopper 51 protrudes from the second stopper 52. The above setting can avoid interference between the second stopper 52 and other structures during the filter press process, thereby affecting the filter press effect.

[0062] As Figures 1 to 4 shown, in this embodiment, the second stopper 52 is a second elastic block. The second elastic block can achieve a certain elastic deformation, which can further reduce the situation of interference between the second stopper 52 and other structures.

[0063] Specifically, the second stopper 52 is made of rubber or silica gel. Rubber or silica gel has good elasticity and wear resistance, ensuring that the second stopper 52 can provide stable supporting force during the high-pressure filtration process and has a long service life.

[0064] As Figures 1 to 3 and Figure 6 shown, in this embodiment, the hanger structure 30 includes a base frame 32 extending along the width direction of the filter plate 10 and a connecting beam 33. The connecting beam 33 is arranged on the base frame 32. The base frame 32 is arranged on the top of the filter plate 10. A plurality of connecting protrusions 331 are arranged on the connecting beam 33 at intervals. The hanger structure 30 provides top fixation for the filter bag 40 through the combination of the base frame 32 and the connecting beam 33, ensuring the stability of the filter bag 40 during the pressure filtration process.

[0065] Specifically, the top of the filter bag 40 is connected to the connecting protrusion 331.

[0066] As Figures 1 to 4 shown, in this embodiment, the pressure filtration assembly further includes a guiding structure 60. The guiding structure 60 is arranged between the hanger structure 30 and the filter plate 10. The guiding structure 60 guides the lifting movement of the hanger structure 30, ensuring the smoothness and positioning accuracy of the filter bag 40 during the lifting and lowering processes.

[0067] Specifically, the guiding structure 60 includes a guiding column 61 and a guiding cylinder 62. One of the guiding column 61 and the guiding cylinder 62 is arranged on the filter plate 10, and the other of the guiding column 61 and the guiding cylinder 62 is arranged on the hanger structure 30. The above-mentioned guiding column 61 and guiding cylinder 62 can achieve guiding cooperation, and the guiding structure 60 restricts the positioning when the lifting structure 100 lifts / releases the filter bag.

[0068] According to another aspect of the present application, a pressure filtration device is provided, as Figure 9As shown in the figure, the filter press device of this embodiment includes: a base frame 70, a feeding device (not shown), a pressing structure 80, a plurality of filter press components, a frame structure 90, and a lifting structure 100. The pressing structure 80 is arranged on the base frame 70. The plurality of filter press components are arranged on the base frame 70, and the pressing structure 80 can squeeze the filter press components. The adjacent first stop members 51 are squeezed to seal the filter bag 40. The solid-liquid mixture is injected into the sealed filter bag by the feeding device, and the pressing structure 80 is used to squeeze the filter press components. The liquid penetrates through the filter bag and is discharged, and a filter cake is formed in the filter bag. The frame structure 90 is movably arranged on the base frame 70. After the filter pressing is completed, the frame structure 90 moves to the position of each filter press component one by one. The lifting structure 100 is arranged on the frame structure 90, and the lifting structure 100 can cooperate with the hanging frame structure 30 of the filter press component to switch the hanging frame structure 30 between the initial position and the lifting position. When the hanging frame structure 30 lifts the filter bag 40 upward, a stop structure 20 is arranged above the upper cover of the filter bag 40 to contact the arc surface of the filter cake. After the contact, it continues to rise and applies a corresponding force. This force directly acts on the filter cake and gives the filter cake a downward force. The filter bag 40 is made of a flexible material and has a certain elastic deformation amount, so that a relative displacement is generated between the filter cake and the filter bag 40, and the adhesion between the filter cake and the filter cloth is destroyed. Thus, the effect of discharging the material is achieved. After discharging the material of one filter press component, the hanging frame structure 30 returns to the initial position and moves to the next filter press component. Among them, the filter press component is the above-mentioned filter press component. Through the movement of the frame structure 90 and the cooperation of the lifting structure 100, the automatic control of a plurality of filter press components is realized, and the discharging efficiency is effectively improved. The setting of the pressing structure 80 can uniformly filter the slurry in the filter bag 40 to ensure the formation quality of the filter cake. And because the above-mentioned filter press component can effectively remove the filter cake, the filter press device with the above-mentioned filter press component also has the above-mentioned advantages.

[0069] In addition, the second stop member 52 generates a groove longitudinally on the filter cake, so that the filter cake has an ultra-thin defect. Cooperating with the up and down displacement of the filter bag by the frame structure 90 and the lifting structure 100 is more conducive to the shedding of the filter cake during the discharging process.

[0070] As Figure 9 shown in the figure, the filter press device of this embodiment includes a guide rail structure. The guide rail structure includes a guide rail member and a guide block. A guide recess is arranged on the guide block, and the guide rail member is inserted into the guide recess. The guide rail member is arranged on the base frame 70, and the guide block is arranged on the filter plate.

[0071] As Figures 9 to 12As shown, in this embodiment, the lifting structure 100 includes a lifting member 101 and a first connecting member 102. The lifting member 101 is connected to the first connecting member 102. A second connecting member 31 is provided on the hanging frame structure 30, and the first connecting member 102 and the second connecting member 31 can be connected. The lifting member 101 can drive the first connecting member 102 to perform a lifting movement. When the first connecting member 102 and the second connecting member 31 are connected, the lifting member can drive the second connecting member 31 to lift and lower.

[0072] As Figures 9 to 12 shown, in this embodiment, the first connecting member 102 includes a connecting block 1021. A protruding portion 1022 is provided on the connecting block 1021. A connecting groove 311 is provided on the second connecting member 31, and an avoiding portion 312 that cooperates with the protruding portion 1022 is provided in the connecting groove 311. Through the cooperation between the protruding portion 1022 and the avoiding portion 312, the quick connection and separation of the connecting block 1021 and the second connecting member 31 are realized, ensuring the stable connection between the lifting structure 100 and the hanging frame structure 30. The design of the protruding portion 1022 and the avoiding portion 312 can also prevent the filter bag 40 from shaking or falling off due to unstable connection during the lifting process, improving the safety of the discharging process.

[0073] Moreover, the cooperation between the first connecting member 102 and the second connecting member 31 is tighter, the discharging process is smoother, and the risk of accidental detachment of the filter bag 40 during the lifting process is avoided. The cooperative design of the protruding portion 1022 and the avoiding portion 312 can provide a reliable connection mechanism, ensuring the continuity and safety of the equipment operation. The using process is that before the discharging starts, the frame structure 90 moves to align and insert the protruding portion 1022 with the avoiding portion 312 on the second connecting member 31 to realize the connection between the first connecting member 102 and the second connecting member 31. After the first connecting member 102 and the second connecting member 31 are connected, the lifting member 101 is started to drive the filter bag to move upward; after the discharging ends, the lifting member 101 resets, and the frame structure 90 moves to separate the first connecting member 102 and the second connecting member 31. The above whole process has a high degree of automation, is easy to operate, and effectively improves the production efficiency.

[0074] In the description of the present invention, it should be understood that "a plurality of" means the number is two or more than two. The orientation or positional relationship indicated by the orientation words such as "front, rear, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0075] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper", etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used here will be made.

[0076] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present invention.

[0077] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A filter press component, characterized in that, include: Filter plate (10); A stop structure (20) is arranged on the top of the filter plate (10), and the stop structure (20) protrudes from the filter plate (10); A rack structure (30) is movably arranged on the top of the filter plate (10) and located above the stop structure (20), and the rack structure (30) has an initial position and a raised position; A filter bag (40) is installed on the rack structure (30), and the filter bag (40) is used to contain slurry; When the slurry in the filter bag (40) is squeezed into a filter cake, when the rack structure (30) moves from the initial position to the raised position, the stop structure (20) cooperates with the filter cake to limit the filter cake so that the filter cake is separated from the filter bag (40).

2. The filter press assembly according to claim 1, wherein The filter plate (10) has a first surface and a second surface, and the stop structure (20) protrudes from the first surface and the second surface respectively.

3. The filter press assembly according to claim 1, wherein, The stop structure (20) is provided with a guide limit portion (21), and a partial structure of the filter bag (40) cooperates with the guide limit portion (21).

4. The pressure filtration assembly according to claim 3, characterized in that The stop structure (20) comprises a limit plate (22), the guide limit portion (21) is a strip-shaped hole (211), the strip-shaped hole (211) is arranged on the limit plate (22), and a part of the structure of the filter bag (40) is passed through the strip-shaped hole (211).

5. The pressure filtration assembly according to claim 3, wherein, The filter bag (40) comprises a bag body (41) and a lifting portion (42) arranged on the top of the bag body (41), and the lifting portion (42) is inserted into the guide limiting portion (21).

6. The filter press assembly according to claim 1, wherein The filter press assembly further comprises a first stopper (51) arranged at the bottom of the filter plate (10), wherein the first stopper (51) extends along the width direction of the filter plate (10).

7. The filter press assembly according to claim 6, characterized in that, The first stopper (51) comprises a first elastic block.

8. The pressure filtration assembly according to claim 6, wherein, The filter press assembly further comprises a second stopper (52) arranged on the filter plate (10), the second stopper (52) extending in the height direction of the filter plate (10), the second stopper (52) being provided with an escape recess (521), the second stopper (52) separating the filter bag (40) into a first bag portion and a second bag portion, the escape recess (521) being located between the first bag portion and the second bag portion so as to enable the first bag portion and the second bag portion to communicate with each other.

9. The filter press assembly according to claim 8, wherein, In a direction perpendicular to the filter plate (10), the first stopper (51) protrudes from the second stopper (52), and / or the second stopper (52) is a second elastic block.

10. The filter press assembly according to claim 1, characterized in that, The filter press assembly further comprises a guide structure (60), wherein the guide structure (60) is arranged between the hanger structure (30) and the filter plate (10).

11. The filter press assembly according to claim 10, wherein, The guide structure (60) comprises a guide column (61) and a guide cylinder (62), one of the guide column (61) and the guide cylinder (62) being arranged on the filter plate (10), and the other of the guide column (61) and the guide cylinder (62) being arranged on the bracket structure (30).

12. The filter press assembly according to claim 1, wherein, The hanger structure (30) includes a base frame (32) extending along the width direction of the filter plate (10) and a connecting beam (33). The connecting beam (33) is arranged on the base frame (32). The base frame (32) is arranged on the top of the filter plate (10). A plurality of connecting protrusions (331) are arranged on the connecting beam (33) at intervals.

13. A pressure filtration device, characterized in that, The pressure filtration device includes: a base frame (70); a pressing structure (80) arranged on the base frame (70); a plurality of pressure filtration components arranged on the base frame (70), and the pressing structure (80) can press the pressure filtration components; a frame structure (90) movably arranged on the base frame (70); a lifting structure (100) arranged on the frame structure (90). The lifting structure (100) can cooperate with the hanger structure (30) of the pressure filtration component to switch the hanger structure (30) between an initial position and a lifting position; wherein, the pressure filtration component is the pressure filtration component according to any one of claims 1 to 12.

14. The pressure filtration device according to claim 13, characterized in that, The lifting structure (100) includes a lifting member (101) and a first connecting member (102). The lifting member (101) is connected to the first connecting member (102). A second connecting member (31) is arranged on the hanger structure (30), and the first connecting member (102) and the second connecting member (31) can be connected.

15. The pressure filtration device according to claim 14, characterized in that, The first connecting member (102) includes a connecting block (1021). A protruding portion (1022) is arranged on the connecting block (1021). A connecting groove (311) is arranged on the second connecting member (31), and an avoidance portion (312) matching the protruding portion (1022) is arranged in the connecting groove (311).

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