Anti-scouring filter element

Abstract

The utility model discloses an anti-scour filter element, which relates to the technical field of filter elements and comprises a folded filter element body and a cloth bag type filter element body sleeved at one end of the folded filter element body, an annular block is arranged on the outer wall of the cloth bag type filter element body, and circular cavities are symmetrically arranged in the annular block. A connecting assembly for connecting the folding type filter element body with the cloth bag type filter element body is arranged in the circular cavity; a sealing mechanism is arranged on the inner wall of the cloth bag type filter element body; according to the utility model, through the use of the cloth bag type filter element body, the washing of the particles to the inner wall of the folding type filter element body can be effectively buffered, so that the folding type filter element body is prevented from being washed and damaged in a long-term use process, and the service life of the folding type filter element body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, in particular to an anti-scouring filter element. Background Art

[0002] With the increasing requirements for environmental protection, industries such as steel production have generally switched to pleated filter elements to ensure that exhaust emissions meet standards. The advantages of pleated filter elements are large filtration area, high filtration efficiency, and low pressure difference. These advantages can well meet the requirements of ultra-low emissions. However, it also brings a challenge. The filter material used in pleated filter elements is much harder than that used in ordinary bag-type filter elements. When the airflow carries dust particles and rushes quickly towards the pleated filter element, the hard filter material cannot buffer the scouring of the particles, especially at the bottom of the filter element where the wind speed is higher. After long-term use, the pleated filter material is easily damaged due to long-term scouring, which reduces the service life of the filter element. Therefore, an anti-scouring filter element is proposed to solve the above problem. Utility Model Content

[0003] The purpose of the utility model is to propose an anti-scouring filter element in order to solve the above-mentioned problem.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An anti-scouring filter element, comprising a pleated filter element body and a bag filter element body sleeved on one end of the pleated filter element body, an annular block is provided on the outer wall of the bag filter element body, a circular cavity is symmetrically opened in the annular block, a connecting assembly for connecting the pleated filter element body and the bag filter element body is provided in the circular cavity, and a sealing mechanism is provided on the inner wall of the bag filter element body;

[0006] The sealing mechanism includes an annular plate arranged on the inner wall of the bag filter body, an annular rubber ring arranged on one side of the annular plate and a plurality of arc-shaped protrusions arranged on one side of the annular rubber ring. The end face of the pleated filter body is provided with an annular groove to cooperate with the arc-shaped protrusions.

[0007] Preferably, the connecting assembly includes a fixed plate arranged at the bottom of the circular cavity, a fixed rod slidably arranged on the top surface of the fixed plate and a piston arranged on the top of the fixed rod, and a dynamic seal is arranged between the piston and the circular cavity, an extrusion spring is sleeved on the outer wall of the fixed rod between the piston and the fixed plate, and a fixing hole is opened on the outer wall of the pleated filter element body to cooperate with the fixed rod.

[0008] Preferably, a liquid inlet pipe communicating with the top of the circular cavity is provided on one side of the annular rubber ring, and the annular rubber ring, the liquid inlet pipe and the top of the circular cavity are all filled with hydraulic oil.

[0009] Preferably, a negative pressure box is provided on one side of the annular block, a second liquid guide tube connected to the circular cavity is provided on the top of the negative pressure box, a second valve is provided on the outer wall of the second liquid guide tube, and a first liquid guide tube connected to the annular rubber ring is provided on one side surface of the negative pressure box, a first valve is provided on the outer wall of the first liquid guide tube.

[0010] Preferably, the pressure in the circular cavity is greater than the pressure in the negative pressure box, and the pressure in the negative pressure box is greater than the pressure in the annular rubber ring.

[0011] Preferably, a limiting strip is provided on the outer wall at one end of the pleated filter element body, and a limiting groove is provided on the inner wall at one end of the bag-type filter element body to cooperate with the limiting strip.

[0012] Preferably, a plurality of straps are evenly arranged on the outer wall of the pleated filter element body, and one end of the strap is connected to the buckle of the bag-type filter element body.

[0013] Preferably, one end of the pleated filter element body is arc-shaped.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] 1. In this application, the utility model can effectively buffer the erosion of particles on the inner wall of the pleated filter element body by using a bag-type filter element body, thereby preventing the pleated filter element body from being eroded and damaged during long-term use, thereby increasing the service life of the pleated filter element body;

[0016] 2. In this application, the utility model facilitates the connection of the pleated filter element body and the bag filter element body by using a connecting assembly, which is simple and convenient to operate and improves the stability of the connection between the pleated filter element body and the bag filter element body;

[0017] 3. In the present application, the utility model facilitates to improve the sealing between the pleated filter element body and the bag filter element body through the use of a sealing mechanism, thereby preventing the filtered object from leaking from between the pleated filter element body and the bag filter element body, thereby preventing the surrounding air from being polluted, and further facilitating the protection of the surrounding air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a front view provided according to an embodiment of the utility model is shown;

[0019] Figure 2 A schematic diagram of a cross-sectional structure at a front viewing angle provided according to an embodiment of the utility model is shown;

[0020] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0021] Legend:

[0022] 1. Pleated filter element body; 2. Ring block; 3. Bandage; 4. Bag filter element body; 5. Ring rubber ring; 6. Arc-shaped protrusion; 7. Limit strip; 8. Liquid guide tube 1; 9. Valve 1; 10. Negative pressure box; 11. Valve 2; 12. Liquid guide tube 2; 13. Circular cavity; 14. Piston; 15. Extrusion spring; 16. Fixed plate; 17. Fixed rod; 18. Liquid inlet pipe; 19. Fixed hole; 20. Ring plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1-3 , the utility model provides a technical solution:

[0026] A flushing-proof filter element, comprising a pleated filter element body 1 and a bag filter element body 4 sleeved on one end of the pleated filter element body 1. The use of the bag filter element body 4 can effectively buffer particles from flushing the inner wall of the pleated filter element body 1, thereby preventing the pleated filter element body 1 from being damaged by flushing during long-term use, thereby improving the service life of the pleated filter element body 1; an annular block 2 is provided on the outer wall of the bag filter element body 4, and a circular cavity 13 is symmetrically opened in the annular block 2, and a connecting group for connecting the pleated filter element body 1 and the bag filter element body 4 is provided in the circular cavity 13 The connecting component can be used to connect the pleated filter element body 1 and the bag-type filter element body 4 together, which is simple and convenient to operate, and improves the stability of the connection between the pleated filter element body 1 and the bag-type filter element body 4. A sealing mechanism is provided on the inner wall of the bag-type filter element body 4. The use of the sealing mechanism can improve the sealing between the pleated filter element body 1 and the bag-type filter element body 4, and avoid leakage of filtered objects from between the pleated filter element body 1 and the bag-type filter element body 4, thereby avoiding pollution of the surrounding air, and further facilitating the protection of the surrounding air.

[0027] The sealing mechanism includes an annular plate 20 arranged on the inner wall of the bag filter element body 4, an annular rubber ring 5 arranged on one side of the annular plate 20 and a plurality of arc-shaped protrusions 6 arranged on one side of the annular rubber ring 5, and the annular rubber ring 5 can be compressed and restored; an annular groove is provided on the end face of the pleated filter element body 1 to cooperate with the arc-shaped protrusion 6, and the contact area between the annular rubber ring 5 and the pleated filter element body 1 is increased by the coordinated use of the arc-shaped protrusion 6 and the arc-shaped groove, thereby improving the sealing between the pleated filter element body 1 and the bag filter element body 4.

[0028] Embodiment 2

[0029] The technical solution is basically the same as that of the first embodiment, except that: Figure 2 and Figure 3 The connecting assembly includes a fixing plate 16 arranged at the bottom of the circular cavity 13, a fixing rod 17 slidably arranged on the top surface of the fixing plate 16, and a piston 14 arranged on the top of the fixing rod 17, and a dynamic seal is arranged between the piston 14 and the circular cavity 13, and an extrusion spring 15 is sleeved on the outer wall of the fixing rod 17 between the piston 14 and the fixing plate 16, and a fixing hole 19 is opened on the outer wall of the pleated filter element body 1 to cooperate with the fixing rod 17; the annular rubber ring 5 is compressed to squeeze the hydraulic oil in the annular rubber ring 5 into the circular cavity 13, thereby pushing the piston 14 in the circular cavity 13 to move, so that the fixing rod 17 is inserted into the fixing hole 19, so that the pleated filter element body 1 and the bag filter element body 4 are fixed together.

[0030] A liquid inlet pipe 18 connected to the top of the circular cavity 13 is provided on one side of the annular rubber ring 5, and the annular rubber ring 5, the liquid inlet pipe 18 and the top of the circular cavity 13 are all filled with hydraulic oil; through the use of the liquid inlet pipe 18, the hydraulic oil can be easily guided into the circular cavity 13.

[0031] A negative pressure box 10 is provided on one side of the annular block 2, a liquid guide tube 12 connected to the circular cavity 13 is provided on the top of the negative pressure box 10, a valve 11 is provided on the outer wall of the liquid guide tube 12, a liquid guide tube 8 connected to the annular rubber ring 5 is provided on one side of the negative pressure box 10, a valve 9 is provided on the outer wall of the liquid guide tube 8; the use of the negative pressure box 10 serves the purpose of transition, making it convenient to disengage the fixing rod 17 from the fixing hole 19, thereby releasing the fixation of the pleated filter element body 1.

[0032] The pressure in the circular cavity 13 is greater than the pressure in the negative pressure box 10 , and the pressure in the negative pressure box 10 is greater than the pressure in the annular rubber ring 5 , so that the hydraulic oil can flow back into the annular rubber ring 5 .

[0033] A limiting strip 7 is provided on the outer wall of one end of the pleated filter element body 1, and a limiting groove is provided on the inner wall of one end of the bag filter element body 4 to cooperate with the limiting strip 7; the limiting groove and the limiting strip 7 are used in coordination to facilitate the fixing rod 17 to be inserted into the fixing hole 19.

[0034] A plurality of straps 3 are evenly arranged on the outer wall of the pleated filter element body 1, and one end of the strap 3 is connected to the buckle of the bag-type filter element body 4, so as to facilitate connecting the pleated filter element body 1 and the bag-type filter element body 4 together.

[0035] One end of the pleated filter element body 1 is in an arc shape, which is convenient for the annular rubber ring 5 to be sleeved on the outer wall of the pleated filter element body 1 and convenient for the installation of the pleated filter element body 1 and the bag filter element body 4 .

[0036] Working principle: When the utility model is in use, when the bag filter body 4 is installed on the pleated filter body 1, the limiting strip 7 on the pleated filter body 1 is inserted into the limiting groove on the bag filter body 4, and then the bag filter body 4 and the pleated filter body 1 are squeezed, so that the annular rubber ring 5 is squeezed, and then the hydraulic oil in the annular rubber ring 5 moves to the circular cavity 13 through the liquid inlet pipe 18, and then the piston 14 is pushed to move, thereby driving the fixing rod 17 to move, and further the fixing rod 17 is inserted into the fixing hole 19 on the pleated filter body 1, so that the bag filter body 4 and the pleated filter body 1 are fixed together; the binding band 3 on the pleated filter body 1 is fixed to the bag filter body 4, so that the bag filter body 4 and the pleated filter body 1 are connected together;

[0037] The annular rubber ring 5 is squeezed, so that the arc-shaped protrusion 6 is completely fitted with the annular groove, thereby improving the sealing between the pleated filter element body 1 and the bag filter element body 4, preventing objects from leaking from between the pleated filter element body 1 and the bag filter element body 4, thereby facilitating the protection of the surrounding environment;

[0038] When the pleated filter element body 1 and the bag-type filter element body 4 are disassembled, the valve 2 11 is opened. Since the pressure in the circular cavity 13 is greater than the pressure in the negative pressure box 10, the hydraulic oil in the circular cavity 13 is moved to the negative pressure box 10. Then, under the action of the extrusion spring 15, the fixing rod 17 is moved to the circular cavity 13. Since the annular rubber ring 5 needs to restore its deformation, the pleated filter element body 1 is pushed out. Then, the valve 2 11 is closed and the valve 1 9 is opened. Then, the hydraulic oil in the negative pressure box 10 is moved to the annular rubber ring 5 through the liquid guide tube 1 8, so that the hydraulic oil is added to the annular rubber ring 5 and the hydraulic oil is reused.

[0039] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-scouring filter element, characterized in that: The invention comprises a pleated filter element body (1) and a bag filter element body (4) sleeved on one end of the pleated filter element body (1), wherein an annular block (2) is provided on the outer wall of the bag filter element body (4), a circular cavity (13) is symmetrically provided in the annular block (2), a connecting assembly for connecting the pleated filter element body (1) and the bag filter element body (4) is provided in the circular cavity (13), and a sealing mechanism is provided on the inner wall of the bag filter element body (4); The sealing mechanism comprises an annular plate (20) arranged on the inner wall of the bag filter element body (4), an annular rubber ring (5) arranged on one side of the annular plate (20), and a plurality of arc-shaped protrusions (6) arranged on one side of the annular rubber ring (5); and an annular groove is formed on the end surface of the pleated filter element body (1) to match the arc-shaped protrusions (6).

2. The anti-scouring filter element according to claim 1, characterized in that: The connecting assembly comprises a fixing plate (16) arranged at the bottom of the circular cavity (13), a fixing rod (17) slidably arranged on the top surface of the fixing plate (16), and a piston (14) arranged on the top of the fixing rod (17), and a dynamic seal is arranged between the piston (14) and the circular cavity (13), an extrusion spring (15) is sleeved on the outer wall of the fixing rod (17) between the piston (14) and the fixing plate (16), and a fixing hole (19) is opened on the outer wall of the pleated filter element body (1) to cooperate with the fixing rod (17).

3. The anti-scouring filter element according to claim 1, characterized in that: A liquid inlet pipe (18) communicating with the top of the circular cavity (13) is provided on one side of the annular rubber ring (5), and the annular rubber ring (5), the liquid inlet pipe (18) and the top of the circular cavity (13) are all filled with hydraulic oil.

4. The anti-scouring filter element according to claim 1, characterized in that: A negative pressure box (10) is provided on one side of the annular block (2); a second liquid guide tube (12) communicating with the circular cavity (13) is provided on the top of the negative pressure box (10); a second valve (11) is provided on the outer wall of the second liquid guide tube (12); a first liquid guide tube (8) communicating with the annular rubber ring (5) is provided on one side of the negative pressure box (10); a first valve (9) is provided on the outer wall of the first liquid guide tube (8).

5. The anti-scouring filter element according to claim 4, characterized in that: The pressure in the circular cavity (13) is greater than the pressure in the negative pressure box (10), and the pressure in the negative pressure box (10) is greater than the pressure in the annular rubber ring (5).

6. The anti-scouring filter element according to claim 1, characterized in that: A limiting strip (7) is provided on the outer wall of one end of the pleated filter element body (1), and a limiting groove is provided on the inner wall of one end of the bag filter element body (4) to cooperate with the limiting strip (7).

7. The anti-scouring filter element according to claim 1, characterized in that: A plurality of straps (3) are evenly arranged on the outer wall of the pleated filter element body (1), and one end of the strap (3) is connected to the buckle of the bag-type filter element body (4).

8. The anti-scouring filter element according to claim 1, characterized in that: One end of the pleated filter element body (1) is in an arc shape.

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