Safe filter pressing device

Abstract

The utility model relates to the technical field of filter presses, in particular to a safe filter pressing device which comprises a support frame, a driving source arranged on one side of the top of the support frame, a feed port arranged on the other side of the top of the support frame, a protective cover arranged on the top of the support frame, a collecting tank arranged on one side of the bottom of the support frame, and a guide plate arranged above the collecting tank, the output end of the driving source penetrates through the multiple sets of filter plate bodies, a water outlet is formed in one side of each filter plate body, a synchronous plate is arranged at one end of each filter plate body, a thrust plate is arranged at the output end of the driving source, an adjusting assembly is arranged on each filter plate body, and a pressure relief assembly is arranged on one side of each filter plate body. The adjusting assembly is used for adjusting the thickness of the filter plate body; the pressure relief assembly is used for performing pressure relief adjustment according to the real-time pressure in the filter plate body. Compared with the prior art, the thickness of the filter plate body can be adjusted, and the volume of the filter cavity can be changed, so that the filter plate adapts to slurry with different concentrations and particle sizes.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and in particular to a safe filter press device. Background Technology

[0002] Plate and frame filter presses are commonly used solid-liquid separation equipment, widely used in chemical, metallurgical, and mining industries. The principle of filter press is to use a filter medium to filter materials under pressure, separating solid particles to achieve solid-liquid separation. In terms of operation and control, by controlling parameters such as pressure and liquid flow rate, the filter press process can be automated and precisely controlled, improving production efficiency and product quality.

[0003] In the prior art, Chinese patent document CN222400389U proposes a plate and frame filter press for dye production, including a first mounting block. The left sides of the first mounting block and the right sides of the second mounting block are fixedly connected by a first fixing block. A mounting plate is fixedly connected to the lower right side of the first mounting block. A clamping hydraulic cylinder is fixedly connected to the upper middle part of the mounting plate. A clamping plate is fixedly connected to the output end of the clamping hydraulic cylinder. Two water pipes are fixedly connected at equal intervals to the upper middle parts of the first and second mounting blocks. The filter cloth and filter plate are cleaned by the interaction of the push trolley mechanism and the high-pressure nozzle. Water is sprayed through the high-pressure nozzle to wash away residual solid particles to ensure thorough cleaning. The conveyor belt mechanism transports the filter cake. Baffles and guardrails are set to prevent accumulation or overflow to ensure smooth production. However, in actual use, the thickness of traditional filter plates is fixed, making it difficult to adjust according to the concentration and particle size of different slurries, resulting in reduced filtration efficiency or unstable filter cake quality. On the other hand, the internal pressure changes significantly during the filter press process. Without an effective pressure relief mechanism, excessive pressure may damage the equipment or even cause a safety accident. Therefore, this invention proposes a safe filter press device to meet the need for adjusting the filter plate thickness according to different slurry concentrations and particle sizes. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a safe filter press device to solve the problem that the thickness of traditional filter plates is fixed and it is difficult to adjust according to the concentration and particle size of different slurries, resulting in reduced filtration efficiency or unstable filter cake quality.

[0005] To achieve the above objectives, this utility model provides a safe filter press device, including a support frame. A drive source is provided on one side of the top of the support frame, and a feed inlet is provided on the other side of the top of the support frame. A protective cover is provided on the top of the support frame and is removable. A collection trough is provided on one side of the bottom of the support frame, and a guide plate is provided above the collection trough. The output end of the drive source passes through multiple sets of filter plate bodies. A synchronization plate is provided at one end of each filter plate body. A through-hole is provided on the filter plate body, through which the output end of the drive source passes. A thrust plate is provided on the output end of the drive source. An adjustment component is provided on the filter plate body, and a pressure relief component is provided on one side of the filter plate body. The adjustment component is used to adjust the thickness of the filter plate body, and the pressure relief component is used to adjust the pressure relief according to the real-time pressure inside the filter plate body.

[0006] Preferably, the adjusting assembly includes a mounting cylinder disposed on the top of the filter plate body, a set of mounting plates symmetrically disposed on the mounting cylinder, a synchronizing rod being disposed through the mounting plates, a driving arm being disposed on the synchronizing rod, the driving arm being a telescopic structure, one end of the driving arm being gear-shaped, and the other end of the driving arm being disposed on a mounting rod, a lifting rod being threaded inside the mounting cylinder, and a handle being disposed on the top of the lifting rod.

[0007] Preferably, the pressure relief assembly includes a pressure cylinder that penetrates the filter plate body. The pressure cylinder has multiple pressure relief holes at its top, each hole being a circle with a diameter increasing to one side. A guide rod is provided on the inner wall of one end of the pressure cylinder. The guide rod is telescopic, and a sliding head is provided at one end of the guide rod. The sliding head fits against the inner wall of the pressure cylinder, and its surface can contact the pressure relief holes. The length of the sliding head is greater than the diameter of the pressure relief holes. A return spring is sleeved on the guide rod, with one end of the return spring located on one side of the inner wall of the pressure cylinder and the other end located on one side of the sliding head.

[0008] Preferably, one side of each of the multiple filter plate bodies is provided with a water outlet, which is located above the collection tank.

[0009] Preferably, mounting grooves are provided on both sides of the filter plate body, an extension plate is slidably disposed in the mounting groove, a set of support plates is provided on the top of the extension plate, and the mounting rod is rotatably connected to the support plates.

[0010] Preferably, the top surface of the lifting rod is provided with a threaded groove, the bottom surface of the lifting rod is arranged in a ring shape, and the bottom of the lifting rod engages with one end of the drive arm.

[0011] Preferably, the surface of the handle is made of rubber.

[0012] The beneficial effects of this utility model are:

[0013] 1. The support frame provides overall support, and the drive source drives multiple filter plates to perform pressure filtration. The feed inlet delivers the slurry to be filtered between the filter plates, the filtrate is discharged into the collection tank through the outlet, while solid impurities remain between the filter plates. The synchronization plate ensures the synchronous movement of the filter plates, improving filtration stability. The through-hole allows the output end of the drive source to pass through, realizing power transmission. The adjustment component can adjust the thickness of the filter plates to adapt to slurries of different concentrations or particle sizes, improving the filtration effect. The pressure relief component can adjust the pressure relief according to the real-time pressure inside the filter plates, preventing excessive internal pressure and reducing the risk of equipment damage. The protective cover provides protection to prevent accidental contact by operators. The protective cover is removable for easy daily maintenance and cleaning.

[0014] 2. By manually rotating the top handle, the lifting rod moves up and down along the mounting cylinder through the threaded groove. This causes the gear-shaped drive arm to extend and retract, thereby adjusting the sliding position of the extension plate and adjusting the thickness of the filter plate body. By adjusting the thickness of the filter plate body, the filter chamber volume is changed to adapt to slurries of different concentrations and particle sizes. Thick frames are suitable for high-concentration slurries, accommodating more filter cake and reducing the need for frequent cleaning. Thin frames are suitable for low-concentration slurries, reducing the filter chamber volume and increasing the filtration speed to meet the filtration needs of slurries of different concentrations or particle sizes. This makes the equipment suitable for slurries of different concentrations and particle sizes, improving filtration accuracy. The sliding cooperation between the mounting groove and the extension plate ensures smooth movement during adjustment and prevents jamming. The lifting rod is adjusted manually via a handle, which is intuitive and simple to control, requiring no additional power source. The handle surface is made of rubber to enhance anti-slip properties and durability, improving operating comfort.

[0015] 3. When the pressure inside the filter plate increases, the pressure pushes the sliding head to move outward along the guide rod, causing the pressure relief holes of different diameters to open sequentially, thereby gradually releasing the internal pressure. The design of the increasing diameter of the pressure relief holes allows for gradual pressure relief according to changes in internal pressure, avoiding damage to the equipment due to sudden pressure drops. The return spring is sleeved on the guide rod and fixed between the inner wall of the pressure cylinder and the sliding head. After the pressure decreases, the return spring pushes the sliding head back to its original position, ensuring that the pressure relief system automatically closes after the pressure returns to normal, improving the stability and reliability of the equipment, and re-sealing the pressure relief holes to achieve automatic reset and dynamic pressure relief adjustment. The pressure relief component is embedded entirely within the filter plate body, without affecting the normal operation and spatial layout of the equipment, realizing automatic adjustment of the pressure relief rate under different pressures, and achieving precise, reliable, and stable pressure relief control. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of the present utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the extension plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the filter plate body of this utility model;

[0021] Figure 5 This is a schematic diagram of the swing direction of the drive arm of this utility model;

[0022] Figure 6 This is a schematic diagram of the lifting rod of this utility model;

[0023] Figure 7 This is a schematic diagram of the pressure relief component of this utility model;

[0024] Figure 8 This is a partial cross-sectional view of the pressure cylinder of this utility model.

[0025] The components in the diagram are labeled as follows: 1. Support frame; 2. Drive source; 3. Feed inlet; 4. Collection trough; 5. Protective cover; 6. Guide plate; 7. Filter plate body; 8. Synchronization plate; 9. Mounting groove; 10. Extension plate; 11. Through-hole; 12. Mounting cylinder; 13. Mounting plate; 14. Synchronization rod; 15. Drive arm; 16. Mounting rod; 17. Lifting rod; 18. Threaded groove; 19. Handle; 20. Pressure cylinder; 21. Pressure relief hole; 22. Guide rod; 23. Sliding head; 24. Return spring; 25. Support plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] like Figures 1-8 As shown, a safe filter press includes a support frame 1. A drive source 2 is provided on one side of the top of the support frame 1, and a feed inlet 3 is provided on the other side of the top of the support frame 1. A protective cover 5 is provided on the top of the support frame 1 and is removable. A collection trough 4 is provided on one side of the bottom of the support frame 1, and a guide plate 6 is provided above the collection trough 4. The output end of the drive source 2 passes through multiple sets of filter plate bodies 7. A water outlet is provided on one side of the multiple sets of filter plate bodies 7 and is located above the collection trough 4. A synchronization plate 8 is provided at one end of the filter plate body 7. A through-hole 11 is provided on the filter plate body 7, and the output end of the drive source 2 passes through the through-hole 11. A thrust plate is provided on the output end of the drive source 2. The thrust plate is the output structure of an existing filter press and will not be described in detail here. An adjustment component is provided on the filter plate body 7, and a pressure relief component is provided on one side of the filter plate body 7. The adjustment component is used to adjust the thickness of the filter plate body 7. The pressure relief component is used to adjust the pressure according to the real-time pressure inside the filter plate body 7.

[0029] The support frame 1 provides overall support, the drive source 2 drives multiple filter plate bodies 7 to perform pressure filtration, the feed port 3 transports the slurry to be filtered to the space between the filter plate bodies 7, the filtrate is discharged into the collection tank 4 through the outlet, while solid impurities remain between the filter plate bodies 7, the synchronization plate 8 ensures the synchronous movement of the filter plate bodies 7, improving filtration stability, the through port 11 allows the output end of the drive source 2 to pass through, realizing power transmission, the adjustment component can adjust the thickness of the filter plate body 7 to adapt to slurries of different concentrations or particle sizes, improving the filtration effect, the pressure relief component can adjust the pressure relief according to the real-time pressure inside the filter plate body 7, the pressure relief component can prevent the internal pressure of the filter plate body 7 from being too high, reducing the risk of equipment damage, the protective cover 5 provides protection to prevent accidental contact by operators, the protective cover 5 is removable, and it is convenient for daily maintenance and cleaning.

[0030] like Figures 3-6As shown, the adjustment assembly includes an installation cylinder 12 disposed on the top of the filter plate body 7. A set of installation plates 13 are symmetrically arranged on the installation cylinder 12. A synchronizing rod 14 is disposed through the installation plate 13. A drive arm 15 is disposed on the synchronizing rod 14. The drive arm 15 is a telescopic structure. One end of the drive arm 15 is gear-shaped, and the other end of the drive arm 15 is provided with an installation rod 16. A lifting rod 17 is threaded inside the installation cylinder 12. A handle 19 is provided on the top of the lifting rod 17. The surface of the handle 19 is made of rubber. Installation grooves 9 are opened on both sides of the filter plate body 7. An extension plate 10 is slidably disposed in the installation groove 9. A set of support plates 25 is provided on the top of the extension plate 10. The installation rod 16 is rotatably connected to the support plate 25. A threaded groove 18 is opened on the top surface of the lifting rod 17. The bottom surface of the lifting rod 17 is annular. The bottom of the lifting rod 17 meshes with one end of the drive arm 15.

[0031] By manually rotating the top handle 19, the lifting rod 17 can move up and down along the mounting cylinder 12 through the threaded groove 18 on it. This causes the gear-shaped drive arm 15 to deflect, thereby driving the mounting rod 16 to adjust the sliding position of the extension plate 10, thus adjusting the thickness of the filter plate body 7. By adjusting the thickness of the filter plate body 7, the filter chamber volume is changed to adapt to slurries of different concentrations and particle sizes. Thick frames are suitable for high-concentration slurries, accommodating more filter cake and reducing the need for frequent cleaning. Thin frames are suitable for low-concentration slurries, reducing the filter chamber volume and increasing the filtration speed to meet the filtration needs of slurries of different concentrations or particle sizes. This makes the equipment suitable for slurries of different concentrations and particle sizes, improving filtration accuracy. The sliding cooperation between the mounting groove 9 and the extension plate 10 ensures smooth movement during adjustment and prevents jamming. The lifting rod 17 is adjusted by the manual handle 19, which is intuitive and simple to control, requiring no additional power source. The surface of the handle 19 is made of rubber to enhance anti-slip properties and durability, improving operating comfort.

[0032] like Figure 4 , Figure 7 and Figure 8 As shown, the pressure relief assembly includes a pressure cylinder 20 that penetrates the filter plate body 7. The pressure cylinder 20 has multiple pressure relief holes 21 on its top. The pressure relief holes 21 are circular with a diameter that increases to one side. A guide rod 22 is provided on the inner wall of one end of the pressure cylinder 20. The guide rod 22 is telescopic. A sliding head 23 is provided on one end of the guide rod 22. The sliding head 23 is in contact with the inner wall of the pressure cylinder 20. The surface of the sliding head 23 can contact the pressure relief holes 21. The length of the sliding head 23 is greater than the diameter of the pressure relief holes 21. A return spring 24 is sleeved on the guide rod 22. One end of the return spring 24 is provided on the inner wall of one side of the pressure cylinder 20, and the other end of the return spring 24 is provided on one side of the sliding head 23.

[0033] When the pressure inside the filter plate body 7 increases, the pressure pushes the sliding head 23 to move outward along the guide rod 22, causing the pressure relief holes 21 of different diameters to open sequentially, thereby gradually releasing the internal pressure. The incremental diameter design of the pressure relief holes 21 can gradually release pressure according to changes in internal pressure, avoiding damage to the equipment caused by sudden pressure drops. The reset spring 24 is sleeved on the guide rod 22 and fixed between the inner wall of the pressure cylinder 20 and the sliding head 23. After the pressure decreases, the reset spring 24 pushes the sliding head 23 back to its original position, ensuring that the pressure relief system automatically closes after the pressure returns to normal, improving the stability and reliability of the equipment, and re-sealing the pressure relief holes 21 to achieve automatic reset and dynamic pressure relief adjustment. The pressure relief assembly is embedded in the filter plate body 7 as a whole, without affecting the normal operation and spatial layout of the equipment, realizing automatic adjustment of the pressure relief rate under different pressures, and achieving precise, reliable and stable pressure relief control.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0035] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A safety filter press device, comprising a support frame (1), characterized in that, A drive source (2) is provided on one side of the top of the support frame (1), and a feed inlet (3) is provided on the other side of the top of the support frame (1). A protective cover (5) is provided on the top of the support frame (1). The protective cover (5) is detachable. A collection groove (4) is provided on one side of the bottom of the support frame (1). A guide plate (6) is provided above the collection groove (4). The output end of the drive source (2) passes through multiple filter plate bodies (7). A synchronization plate (8) is provided at one end of the filter plate body (7). A through hole (11) is provided on the filter plate body (7). The output end of the drive source (2) passes through the through hole (11). A thrust plate is provided on the output end of the drive source (2). An adjustment component is provided on the filter plate body (7). A pressure relief component is provided on one side of the filter plate body (7). The adjustment component is used to adjust the thickness of the filter plate body (7); The pressure relief component is used to adjust the pressure relief according to the real-time pressure inside the filter plate body (7).

2. The safe filter press device according to claim 1, characterized in that, The adjustment assembly includes an installation cylinder (12) disposed on the top of the filter plate body (7). A set of installation plates (13) are symmetrically arranged on the installation cylinder (12). A synchronizing rod (14) is disposed through the installation plate (13). A drive arm (15) is disposed on the synchronizing rod (14). The drive arm (15) is a telescopic structure. One end of the drive arm (15) is gear-shaped. The other end of the drive arm (15) is provided with an installation rod (16). A lifting rod (17) is threaded inside the installation cylinder (12). A handle (19) is provided at the top of the lifting rod (17).

3. The safe filter press device according to claim 2, characterized in that, The pressure relief assembly includes a pressure cylinder (20) that penetrates the filter plate body (7). The pressure cylinder (20) has multiple pressure relief holes (21) on its top. The pressure relief holes (21) are circular with a diameter that increases to one side. A guide rod (22) is provided on the inner wall of one end of the pressure cylinder (20). The guide rod (22) is a telescopic structure. A sliding head (23) is provided on one end of the guide rod (22). The sliding head (23) fits against the inner wall of the pressure cylinder (20). The surface of the sliding head (23) can contact the pressure relief hole (21). The length of the sliding head (23) is greater than the diameter of the pressure relief hole (21). A return spring (24) is sleeved on the guide rod (22). One end of the return spring (24) is located on the inner wall of one side of the pressure cylinder (20), and the other end of the return spring (24) is located on one side of the sliding head (23).

4. A safe filter press device according to claim 1, characterized in that, A water outlet is provided on one side of the multiple sets of filter plate bodies (7), and the water outlet is located above the collection tank (4).

5. A safe filter press device according to claim 2, characterized in that, The filter plate body (7) has mounting grooves (9) on both sides. An extension plate (10) is slidably arranged in the mounting groove (9). A set of support plates (25) is provided on the top of the extension plate (10). The mounting rod (16) is rotatably connected to the support plate (25).

6. A safe filter press device according to claim 5, characterized in that, The top surface of the lifting rod (17) is provided with a threaded groove (18), the bottom surface of the lifting rod (17) is arranged in a ring shape, and the bottom of the lifting rod (17) is engaged with one end of the drive arm (15).

7. A safe filter press device according to claim 5, characterized in that, The surface of the handle (19) is made of rubber.

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