Anti-blocking filter plate for filter press

Abstract

The utility model discloses a kind of anti-blocking filter plates for filter press, including filter plate, liquid inlet is equipped in filter plate front and close to middle end, primary interception structure is equipped with around liquid inlet in filter plate front;Secondary interception structure is equipped with in filter plate and located in the back of primary interception structure;Filter cloth is equipped with in filter plate and located in the back of secondary interception structure.The utility model is equipped with multiple interception rings, mixed pulp is reduced and preliminary intercepted, large particle impurities are limited in interception ring, reduce the possibility of subsequent blockage;It is equipped with the filter plate of adjustable aperture, can be secondary intercepted to pulp, further reduce the possibility of filter cloth blockage.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, specifically to an anti-clogging filter plate for a filter press. Background Technology

[0002] A filter press is a mechanical device that uses a special filter medium to apply pressure to a material, causing the liquid to seep out. It is a commonly used solid-liquid separation device. It was first applied to chemical production in the early 18th century and remains widely used in industries such as chemicals, pharmaceuticals, metallurgy, dyes, food, brewing, ceramics, and environmental protection.

[0003] The filter plates are the core component of a filter press, achieving solid-liquid separation through pressure difference. However, in actual use, filter plates are often at risk of clogging. For example, when the material has highly viscous or chemically active impurities, they may adhere to the surface of the filter cloth during filtration, causing blockage. Prolonged filtration can cause the filter cake on the surface of the filter cloth to thicken, leading to increased filtration resistance and also clogging. Furthermore, if the filter cake is not removed in time, a hard shell will form on the surface of the filter cloth, hindering the passage of liquid. In existing technologies, filter plate filtration mainly relies on the filter cloth, so the above situations occur frequently, indicating technological limitations. Utility Model Content

[0004] This invention aims to solve the above-mentioned technical problem that the filtration of filter plates mainly relies on filter cloth, which is prone to clogging, and provides an anti-clogging filter plate for filter presses.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: an anti-clogging filter plate for a filter press, comprising a filter plate, wherein a liquid inlet is provided on the front side of the filter plate near the middle, and a primary interception structure is provided on the front side of the filter plate surrounding the liquid inlet; a secondary interception structure is provided inside the filter plate and behind the primary interception structure; and a filter cloth is provided inside the filter plate and behind the secondary interception structure.

[0006] The primary interception structure includes three interception rings arranged sequentially from the inside to the outside on the front of the filter plate: interception ring one, interception ring two, and interception ring three; each of the three interception rings has a notch, and the positions of the notches are different.

[0007] The secondary interception structure includes a filter plate with a plurality of filter holes arranged on the filter plate, the diameter of which is adjustable.

[0008] Furthermore, the front of the interception ring is flush with the filter plate.

[0009] Furthermore, several circular protrusions are provided between the first and second interception rings, and between the second and third interception rings.

[0010] Furthermore, mounting holes are provided at corresponding positions of the filter plate, filter cloth, and filter plate.

[0011] Furthermore, the filter plate is hollow inside, and all the filter holes penetrate the filter plate; an adjustment plate is movable inside the filter plate, and an adjustment knob is provided on the back of the adjustment plate near the upper end; an adjustment groove is connected to the back of the filter plate, and the adjustment knob extends out of the adjustment groove; the adjustment plate is provided with filter holes two corresponding to the filter holes.

[0012] Furthermore, after the adjustment knob extends out of the adjustment groove, its front side is in close contact with the back side of the filter plate.

[0013] The advantages of this utility model compared with the prior art are as follows:

[0014] Multiple interception rings are installed to slow down the mixed slurry and perform initial interception, confining large particles of impurities within the interception rings and reducing the possibility of subsequent clogging.

[0015] It is equipped with a filter plate with adjustable pore size, which can perform secondary interception of slurry and further reduce the possibility of filter cloth clogging. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a structural breakdown diagram of this utility model.

[0018] Figure 3 This is a schematic diagram of the filter plate structure of this utility model.

[0019] Figure 4 This is a schematic cross-sectional view of the filter plate of this utility model.

[0020] As shown in the figure: 1. Filter plate, 2. Liquid inlet, 3. Filter cloth, 4. Interception ring one, 5. Interception ring two, 6. Interception ring three, 7. Notch, 8. Protrusion, 9. Filter plate, 10. Filter hole, 11. Adjustment plate, 12. Adjustment knob, 13. Adjustment groove, 14. Filter hole two. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Example 1, in conjunction with Appendix Figure 1 , 2 3. A filter plate for a filter press, comprising a filter plate 1, an inlet 2 on the front of the filter plate 1 near the middle, a primary interception structure on the front of the filter plate 1 surrounding the inlet 2, a secondary interception structure inside the filter plate 1 and behind the primary interception structure, and a filter cloth 3 inside the filter plate 1 and behind the secondary interception structure.

[0023] Based on the above, the primary interception structure includes three interception rings arranged sequentially from the inside to the outside on the front of the filter plate 1: interception ring 4, interception ring 5, and interception ring 6. Each of the interception rings 4, 5, and 6 has a notch 7, and the positions of the notches 7 are different. The multiple interception rings, when nested together, slow down the mixed slurry and perform initial interception, confining large particles of impurities within the interception rings and reducing the possibility of subsequent clogging. The notches 7 are used to provide a path for the slurry to pass through.

[0024] The front of the intercepting ring 36 is flush with the filter plate 1; thus, the intercepting ring 36 plays a supporting role between adjacent filter plates 1, improving the stability between multiple filter plates 1 in actual operation.

[0025] In addition, several circular protrusions 8 are provided between interception ring 1 4 and interception ring 2 5, and between interception ring 2 5 and interception ring 3 6; the protrusions 8 can further increase friction and resistance, and intercept impurities in the slurry.

[0026] Combined with appendix Figure 2 , 3 4. The secondary interception structure includes a filter plate 9. The filter plate 1, filter plate 9, and filter cloth 3 are all provided with mounting holes at corresponding positions for fixing each layer. The filter plate 9 is provided with a number of filter holes 10, and the pore size of the filter holes 10 can be adjusted.

[0027] Specifically, as described above, the filter plate 9 is hollow, and all filter holes 10 penetrate the filter plate 9. An adjusting plate 11 is movable inside the filter plate 9. An adjusting knob 12 is located on the back of the adjusting plate 11 near its upper end. An adjusting groove 13 is connected to the back of the filter plate 9. The adjusting knob 12 extends out of the adjusting groove 13, and its front end is in close contact with the back of the filter plate 9. The adjusting plate 11 has filter holes 14 corresponding to the filter holes 10. Therefore, when the pore size of the filter holes 10 needs to be adjusted according to the viscosity of the slurry, the filter cloth 3 can be disassembled. By forcefully pushing the adjusting knob 12 with pliers or other tools, the adjusting plate 11 moves within the filter plate 9, thereby moving the filter hole 14 and adjusting the overlapping area with the filter hole 10, thus adjusting the degree of interception of slurry impurity particles. The tight contact between the adjusting knob 12 and the back of the filter plate 9 can prevent the adjusting knob 12 from moving on its own. In addition, soft cloth can be wrapped around the adjusting groove 13 and the outside of the support on the back of the adjusting knob 12. Without affecting the movement of the adjusting knob 12, the adjusting groove 13 can be blocked to prevent slurry from entering the filter plate 9 and causing the adjusting plate 11 to be unable to move.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An anti-clogging filter plate for a filter press, characterized in that: The filter includes a filter plate (1), with an inlet (2) on the front and near the middle of the filter plate (1), and a primary interception structure on the front and around the inlet (2); a secondary interception structure is provided inside the filter plate (1) and behind the primary interception structure; and a filter cloth (3) is provided inside the filter plate (1) and behind the secondary interception structure. The primary interception structure includes an interception ring 1 (4), an interception ring 2 (5), and an interception ring 3 (6) arranged sequentially from the inside to the outside on the front of the filter plate (1); each of the interception ring 1 (4), the interception ring 2 (5), and the interception ring 3 (6) is provided with a notch (7), and the positions of the notches (7) are different; The secondary interception structure includes a filter plate (9), on which a plurality of filter holes (10) are arranged, and the aperture of the filter holes (10) is adjustable.

2. The anti-clogging filter plate for a filter press according to claim 1, characterized in that: The front of the interception ring (6) is flush with the filter plate (1).

3. The anti-clogging filter plate for a filter press according to claim 1, characterized in that: Several circular protrusions (8) are provided between the first interception ring (4) and the second interception ring (5), and between the second interception ring (5) and the third interception ring (6).

4. The anti-clogging filter plate for a filter press according to claim 1, characterized in that: The filter plate (1), filter plate (9), and filter cloth (3) are all provided with mounting holes at corresponding positions.

5. The anti-clogging filter plate for a filter press according to claim 1, characterized in that: The filter plate (9) is hollow inside, and the filter holes (10) all penetrate the filter plate (9); an adjustment plate (11) is movable inside the filter plate (9), and an adjustment knob (12) is provided on the back of the adjustment plate (11) near the upper end. An adjustment groove (13) is connected to the back of the filter plate (9), and the adjustment knob (12) extends out of the adjustment groove (13); the adjustment plate (11) is provided with a second filter hole (14) corresponding to the filter hole (10).

6. The anti-clogging filter plate for a filter press according to claim 5, characterized in that: After the adjustment knob (12) extends out of the adjustment groove (13), its front side is in close contact with the back side of the filter plate (9).

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