Filter stick structure of press filter

Abstract

The utility model discloses a filter stick structure of a press filter, which comprises a filter stick main body, one end of the filter stick main body is closed, the other end of the filter stick main body is provided with a liquid outlet port communicated with an inner cavity of the filter stick main body, the filter stick main body is sleeved with a filter screen of a cylindrical structure, and the filter screen is supported by a keel in the filter screen. A clamping cavity between the filter stick main body and the filter screen is filled with a filter material; one end of the keel is arranged in the fixed seat in a penetrating mode and fixedly connected with the fixed seat, and one end of the keel is arranged in the movable seat in a penetrating mode and slidably connected with the movable seat. Annular grooves for positioning the filter screen are formed in the outer parts of the opposite ends of the fixed seat and the movable seat; the cylindrical filter screen is mounted between the opposite ends of the fixed seat and the movable seat; and the liquid outlet port is arranged in the movable seat in a penetrating manner. The utility model can effectively solve the problem that the filter stick is easy to block in a large area, and improves the production efficiency.

Description

Technical Field

[0001] The utility model relates to a filter rod structure of a filter press, belonging to the technical field of filter press equipment. Background Art

[0002] Filtration refers to the process of purifying and refining fluids through special devices. There are many filtration methods and a wide range of substances involved, such as solid-liquid, solid-gas, large particles, and small particles, which are all very common. Filter equipment is generally divided into two categories: vacuum and pressure. Commonly used vacuum types include rotary drums, discs, horizontal belts, etc., and commonly used pressure types include filter presses.

[0003] Existing filter presses usually use stainless steel sintered mesh filter rods. Stainless steel sintered mesh filter rods are a new type of filter material sintered under vacuum, with high strength and overall rigidity. The mesh holes of each layer of wire mesh intersect with each other to form a uniform and ideal filtration structure, having many excellent properties such as high filtration accuracy, high temperature resistance, corrosion resistance, high mechanical strength, easy processing, and long service life. Therefore, they are increasingly applied to the separation fields of products and process media in the pharmaceutical and petrochemical industries.

[0004] During the use of the stainless steel sintered mesh filter rod of the filter press, affected by the material itself, colloids, flocs, etc. contained in the material often adhere to the filter rod, resulting in a slow filtration speed of the filter rod and poor filtration effect, seriously affecting production efficiency.

[0005] In summary, it is obvious that there are inconveniences and defects in the prior art in actual use, so it is necessary to improve it. Content of the Utility Model

[0006] In view of the deficiencies in the background art, the utility model provides a filter rod structure of a filter press, which can effectively solve the problem of easy large-area blockage of the filter rod and improve production efficiency.

[0007] To solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A filter rod structure of a filter press includes a filter rod main body. One end of the filter rod main body is closed, and the other end is provided with a liquid outlet port communicating with its inner cavity; a cylindrical filter screen is sleeved outside the filter rod main body, and the filter screen is supported by a keel inside it. The clamping cavity between the filter rod main body and the filter screen is filled with filter material; one end of the keel is inserted into and fixedly connected to a fixed seat, and one end of the keel is inserted into and slidably connected to a movable seat; the liquid outlet port is inserted into the movable seat.

[0009] Further, the filter material is diatomite or activated carbon.

[0010] Further, a locking nut threadedly connected to the keel is provided outside the movable seat.

[0011] Further, the keel is composed of a plurality of bars distributed in a circumferential manner, and one end of each bar is provided with an external thread for connecting with a lock nut.

[0012] Further, annular grooves for positioning the filter screen are provided on the outer parts of the opposite ends of the fixed seat and the movable seat, and the cylindrical filter screen is installed between the opposite sides of the fixed seat and the movable seat.

[0013] Further, an O-ring seal is installed at the connection between the liquid outlet port and the movable seat, and the O-ring seal is sleeved at the bottom of the liquid outlet port.

[0014] Further, a compression spring is provided between the closed end of the filter rod body and the fixed seat.

[0015] Further, a columnar protrusion integrally formed with the fixed seat is fixedly connected to the end of the fixed seat close to the filter rod body, and the end of the compression spring is positioned and fixed by the columnar protrusion.

[0016] Further, the filter screen is made of stainless steel.

[0017] After the present utility model adopts the above technical solutions, compared with the prior art, it has the following advantages:

[0018] In the present utility model, a layer of stainless steel filter screen is wrapped around the outer periphery of the filter rod body, the filter screen is supported by the keel inside it, and diatomaceous earth or activated carbon is filled in the clamping cavity between the filter rod body and the filter screen. In this way, during filtration, the flocs or colloids contained in the material first adhere to the diatomaceous earth or activated carbon, and will not block the filter rod body in a large area, improving the production efficiency;

[0019] In the present utility model, one end of the keel is fixedly connected to the fixed seat, and the other end of the keel is slidably connected to the movable seat, so that the movable seat is convenient for installation and disassembly, and convenient for filling or replacing diatomaceous earth or activated carbon.

[0020] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the present utility model;

[0022] Figure 2 is a structural sectional view of the present utility model;

[0023] Figure 3 is a schematic diagram of the upper structure of the present utility model;

[0024] Figure 4 is a schematic diagram of the lower structure of the present utility model;

[0025] Figure 5This is a schematic diagram of the present utility model in the working state.

[0026] In the figure, 1 is the filter rod body, 2 is the liquid outlet port, 3 is the filter screen, 4 is the keel, 5 is the fixed seat, 6 is the movable seat, 7 is the compression spring, 8 is the O-ring seal, 9 is the locking nut, 10 is the filter material, and 11 is the columnar protrusion. Specific Embodiments

[0027] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific embodiments of the present utility model will now be described with reference to the accompanying drawings.

[0028] As Figures 1 - 5 As commonly shown, the present utility model provides a filter rod structure for a filter press, including a filter rod body 1. One end of the filter rod body 1 is closed, and the other end is provided with a liquid outlet port 2 communicating with its inner cavity. The filter rod body 1 is made of a filter material formed by pressing, rolling, and sintering stainless steel wire mesh in a high-temperature furnace.

[0029] A cylindrical filter screen 3 is sleeved outside the filter rod body 1. The filter screen 3 is made of stainless steel and is supported by the keel 4 inside it. The filter material 10 is filled in the clamping cavity between the filter rod body 1 and the filter screen 3.

[0030] The filter material 10 is diatomaceous earth or activated carbon.

[0031] One end of the keel 4 is inserted into the fixed seat 5 and fixedly connected thereto. One end of the keel 4 is inserted into the movable seat 6 and slidably connected thereto.

[0032] A locking nut 9 threadedly connected to the keel 4 is provided outside the movable seat 6. The locking nut 9 can assemble the movable seat 6, the keel 4, and the fixed seat 5 into a whole.

[0033] The keel 4 is composed of a plurality of rod-shaped materials distributed in a circumferential manner. One end of the rod-shaped material is provided with an external thread connected to the locking nut 9.

[0034] Circular grooves for positioning the filter screen 3 are provided on the outer sides of the opposite ends of the fixed seat 5 and the movable seat 6. The cylindrical filter screen 3 is installed between the opposite sides of the fixed seat 5 and the movable seat 6.

[0035] The liquid outlet port 2 is inserted into the movable seat 6. An O-ring seal 8 is installed at the connection between the liquid outlet port 2 and the movable seat 6. The O-ring seal 8 is sleeved at the bottom of the liquid outlet port 2 to ensure good sealing between the filter rod body 1 and the movable seat 6.

[0036] A compression spring 7 is provided between the closed end of the filter rod body 1 and the fixed seat 5. The compression spring 7 is used to press the filter rod body 1 so that the O-ring seal 8 is deformed by the force to achieve the sealing function.

[0037] A columnar protrusion 11 integrally formed therewith is fixedly connected to the end of the fixing seat 5 close to the filter rod body 1 , and the columnar protrusion 11 is used to position and fix the end of the compression spring 7 .

[0038] The specific working principle of this utility model:

[0039] The utility model wraps a layer of stainless steel filter screen around the outer surface of the filter rod body, the filter screen is supported by the keel inside the filter rod body, and the cavity between the filter rod body and the filter screen is filled with diatomaceous earth or activated carbon. In this way, during the filtration, the flocculent or colloid contained in the material first adheres to the diatomaceous earth or activated carbon, and will not block the filter rod body in a large area, thereby improving production efficiency.

[0040] One end of the keel is fixedly connected to the fixed seat, and the other end of the keel is slidably connected to the movable seat. The movable seat is convenient for assembly and disassembly, and is convenient for filling or replacing diatomaceous earth or activated carbon.

[0041] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A filter rod structure of a filter press, characterized in that: The filter rod body (1) comprises a filter rod main body (1), one end of which is closed and the other end of which is provided with a liquid outlet port (2) connected to the inner cavity thereof; a filter screen (3) of a cylindrical structure is sleeved on the outside of the filter rod main body (1), the filter screen (3) is supported by a keel (4) inside the filter rod main body (1), and a filter material (10) is filled in the sandwich cavity between the filter rod main body (1) and the filter screen (3); one end of the keel (4) is inserted into a fixed seat (5) and is fixedly connected thereto, and one end of the keel (4) is inserted into a movable seat (6) and is slidably connected thereto; and the liquid outlet port (2) is inserted into the movable seat (6).

2. The filter rod structure of a filter press according to claim 1, characterized in that: The filter material (10) is diatomaceous earth or activated carbon.

3. The filter rod structure of a filter press according to claim 1, characterized in that: The movable seat (6) is provided with a locking nut (9) threadedly connected to the keel (4) on the outside.

4. The filter rod structure of a filter press according to claim 3, characterized in that: The keel (4) is composed of a plurality of rods distributed in a circumferential manner, and one end of the rod is provided with an external thread connected to a locking nut (9).

5. The filter rod structure of a filter press according to claim 1, characterized in that: The exteriors of the facing ends of the fixed seat (5) and the movable seat (6) are both provided with an annular groove for positioning the filter screen (3), and the cylindrical filter screen (3) is installed between the facing ends of the fixed seat (5) and the movable seat (6).

6. The filter rod structure of a filter press according to claim 1, characterized in that: An O-shaped sealing ring (8) is installed at the connection between the liquid outlet port (2) and the movable seat (6), and the O-shaped sealing ring (8) is sleeved on the bottom of the liquid outlet port (2).

7. The filter rod structure of a filter press according to claim 1, characterized in that: A compression spring (7) is provided between the closed end of the filter rod body (1) and the fixing seat (5).

8. The filter rod structure of a filter press according to claim 7, characterized in that: A columnar protrusion (11) integrally formed therewith is fixedly connected to the end of the fixing seat (5) close to the filter rod body (1), and the columnar protrusion (11) positions and fixes the end of the compression spring (7).

9. The filter rod structure of a filter press according to claim 1, characterized in that: The filter screen (3) is made of stainless steel.

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