Ceramic disc vacuum filter

Abstract

The utility model discloses a ceramic disc vacuum filter, which comprises a filter box, three groups of ceramic disc filter mechanisms are arranged in the filter box, the three groups of ceramic disc filter mechanisms are arranged in an inverted triangle form, each ceramic disc filter mechanism comprises a ceramic filter disc and a filter pipe, the ceramic filter disc is arranged on the surface of the filter pipe, and the filter pipe is arranged in the filter box. The number of the ceramic filtering discs on each filtering pipe is seven, the seven ceramic filtering discs are distributed in a linear array mode, a first motor is installed on one side of the filtering box, and a rotating connector is installed on the other side of the filtering box. According to the utility model, a single large-size ceramic plate is divided into three groups of small-size ceramic plates, each group of ceramic plates is light in weight, and no structure needs to be additionally arranged to support the ceramic plates, so that the reduction of the area of the ceramic plates is avoided, the three groups of ceramic plates are arranged in the form of an inverted triangle, each group adopts seven filter plates, and the total number of the filter plates is 21; the filtering area is further increased, so that the filtering speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of dehydration filtering devices, in particular to a ceramic disc vacuum filter. Background Art

[0002] The originality of the ceramic disc vacuum filter is that its filtering mechanism is to apply the principle of capillary effect to dehydration filtration. The ceramic filter disc is made of hydrophilic ceramic sintered alumina to replace the traditional filter disc and filter cloth. The ceramic filter disc is covered with micropores with a diameter of 0.05 to 5um, and its porosity reaches more than 80%. Each micropore is equivalent to a capillary. After the ceramic filter disc is connected to the vacuum system, when water is poured onto the filter disc, the liquid will pass through the micropores until all the free water passes through.

[0003] Due to the surface tension between water and hydrophilic ceramics, under the action of negative pressure, the water in the micropores will not be completely emptied, thus preventing the gas from escaping and forming a filtration process without air consumption. When the ceramic filter disc is immersed in the filtrate, the capillary effect generates attraction for dehydration. Water is continuously discharged from the micropores, but it is not emptied, and the gas is basically not discharged. This makes the inside of the ceramic disc form a vacuum state, and it can maintain a very high vacuum degree, which greatly improves the filtration coefficient. The solid particles accumulated on the filter disc form a filter cake, and the filtrate is continuously discharged through the filter disc filter tube until it is drained. The whole process only requires a low-power vacuum pump to achieve the unique effect of large processing capacity and low moisture content in the filter cake.

[0004] Some existing ceramic disc vacuum filters are provided with mechanisms for supporting the ceramic filter disc when in use, but these mechanisms occupy a large area, compressing the filtering area of ​​the ceramic filter disc, which is not conducive to improving the filtering speed of the device.

[0005] For example, a disc-type ceramic filter disclosed in the announcement number CN213407931U has a support tube installed on the outer wall of the main shaft by bolts, and a support frame distributed in an annular structure with equal distances is installed on the outer wall of the support tube by bolts, and the interior of the support frame clamps the ceramic filter disc through the action of a positioning seat.

[0006] Although the support tube and support frame of the patent can stably support the ceramic filter disc, the support tube and support frame occupy a large area inside the filter tank, compressing the filtration area of ​​the ceramic filter disc, which is not conducive to improving the filtration speed of the device.

[0007] Therefore, it is necessary to invent a ceramic disc vacuum filter to solve the above problems. Utility Model Content

[0008] The utility model aims to provide a ceramic disc vacuum filter to solve the above-mentioned technical problems.

[0009] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ceramic disc vacuum filter, comprising a filter box, three groups of ceramic disc filter mechanisms are arranged inside the filter box, the three groups of ceramic disc filter mechanisms are arranged in an inverted triangle, the ceramic disc filter mechanism comprises a ceramic filter disc and a filter tube, the ceramic filter disc is installed on the surface of the filter tube, the number of ceramic filter discs on each filter tube is set to seven, the seven ceramic filter discs are distributed in a linear array, a No. 1 motor is installed on one side of the filter box, a rotary joint is installed on the other side of the filter box, one end of the filter tube is transmission-connected to the No. 1 motor, the other end of the filter tube is rotationally connected to the rotary joint, and a suction port is installed at the end of the rotary joint away from the filter tube.

[0010] By setting a rotating joint to connect the filter tube and the suction port, the liquid flow between the filter tube and the suction port can be ensured while the filter tube is driven to rotate by the No. 1 motor.

[0011] Preferably, the three suction ports are all connected to the same suction pipe, and a backwash valve is installed at the connection between the suction port and the rotary joint.

[0012] The suction pipe is connected to the vacuum system to suck the ceramic disc filter mechanism, and the ceramic disc filter mechanism is backwashed through the backwash valve, so that the ceramic filter disc can be cleaned conveniently and the ceramic filter disc can resume its filtering function.

[0013] Preferably, a discharge valve is fixedly connected to the bottom of the filter box, and a No. 2 motor is installed below the side wall of the filter box.

[0014] The material accumulated at the bottom of the filter box can be discharged through the discharge valve.

[0015] Preferably, a spiral pusher is provided at the bottom of the filter box, one end of the spiral pusher is transmission-connected to the No. 2 motor, and the discharge valve is provided below the other end of the spiral pusher.

[0016] The screw pusher can be driven by the No. 2 motor to work, and the material accumulated at the bottom of the filter box can be pushed to the discharge valve by the screw pusher.

[0017] Preferably, a feed port is fixedly connected to one side of the filter box, and a vent port is fixedly connected to the other side of the filter box.

[0018] The material is injected into the filter box through the feed port.

[0019] Preferably, a sealing top cover is installed on the top of the filter box, and a supporting leg is fixedly connected to the bottom of the filter box.

[0020] The filter box is stably supported by supporting legs.

[0021] Preferably, the cross-sectional shape of the bottom of the filter box is an inverted triangle.

[0022] The bottom of the filter box is designed in an inverted triangle shape, which is convenient for collecting materials and discharging them in a centralized manner later.

[0023] Preferably, the ceramic filter disc is made of hydrophilic ceramic sintered alumina.

[0024] The ceramic filter disc is made of hydrophilic ceramic sintered alumina. The ceramic filter disc is covered with micropores and can perform dehydration and filtration using the principle of capillary effect.

[0025] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0026] 1. Split a single large-sized ceramic disc into three groups of small-sized ceramic discs. Each group of ceramic discs is light in weight, and there is no need to add a structure to support the ceramic discs, thereby avoiding the reduction of the area of ​​the ceramic discs. The three groups of ceramic discs are arranged in an inverted triangle shape, with 7 filter discs in each group, a total of 21 filter discs, further increasing the filtration area to speed up the filtration speed;

[0027] 2. During normal filtration, when the ceramic filter disc is half exposed to the liquid level, the effective filtration area can be indirectly guaranteed by rotating the ceramic filter disc;

[0028] 3. When the filtration pressure decreases, close the suction port, open the backwash valve, and use the backwash method to regenerate the filter disc and restore the flux;

[0029] 4. When the liquid level reaches the bottom line, open the bottom discharge valve and start the screw pusher to discharge all the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0031] Figure 2 It is the structural explosion diagram of the utility model;

[0032] Figure 3 It is a longitudinal structural cross-sectional view of the utility model;

[0033] Figure 4 It is a cross-sectional view of the transverse structure of the utility model;

[0034] Figure 5 It is a partial structural schematic diagram of the utility model.

[0035] Description of reference numerals:

[0036] 1. Filter box; 2. Ceramic disc filter mechanism; 3. Ceramic filter disc; 4. Filter tube; 5. Motor No. 1; 6. Rotary joint; 7. Suction port; 8. Suction pipe; 9. Backwash valve; 10. Discharge valve; 11. Motor No. 2; 12. Screw pusher; 13. Feed port; 14. Discharge port; 15. Sealed top cover; 16. Support legs. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038] The utility model provides Figure 1-5 A ceramic disc vacuum filter is shown, comprising a filter box 1, wherein three groups of ceramic disc filter mechanisms 2 are arranged inside the filter box 1, and the three groups of ceramic disc filter mechanisms 2 are arranged in an inverted triangle. The ceramic disc filter mechanism 2 comprises a ceramic filter disc 3 and a filter tube 4, and the ceramic filter disc 3 is mounted on the surface of the filter tube 4. The number of ceramic filter discs 3 on each filter tube 4 is set to seven, and the seven ceramic filter discs 3 are distributed in a linear array. A No. 1 motor 5 is mounted on one side of the filter box 1, and a rotary joint 6 is mounted on the other side of the filter box 1. One end of the filter tube 4 is transmission-connected to the No. 1 motor 5, and the other end of the filter tube 4 is rotationally connected to the rotary joint 6, and a suction port 7 is mounted on the end of the rotary joint 6 away from the filter tube 4.

[0039] In one aspect of the present embodiment, the three suction ports 7 are all connected to the same suction pipe 8, a backwash valve 9 is installed at the connection between the suction port 7 and the rotary joint 6, a discharge valve 10 is fixedly connected to the bottom of the filter box 1, a No. 2 motor 11 is installed below the side wall of the filter box 1, a spiral pusher 12 is arranged at the bottom of the filter box 1, one end of the spiral pusher 12 is transmission connected to the No. 2 motor 11, the discharge valve 10 is arranged below the other end of the spiral pusher 12, a feed port 13 is fixedly connected to one side of the filter box 1, a drain port 14 is fixedly connected to the other side of the filter box 1, a sealing top cover 15 is installed on the top of the filter box 1, a support leg 16 is fixedly connected to the bottom of the filter box 1, the cross-sectional shape of the bottom of the filter box 1 is an inverted triangle, and the ceramic filter disc 3 is made of hydrophilic ceramic sintered alumina.

[0040] Working principle of this utility model:

[0041] Refer to the instruction manual Figure 1-5When using the utility model, first connect the suction pipe 8 to the vacuum system, then inject the material into the filter box 1 through the feed port 13, and suck it through the vacuum system and the suction pipe 8. After the ceramic filter disc 3 is immersed in the material, the capillary effect generates attraction to carry out the dehydration process, and water is continuously discharged from the micropores, but not emptied, and the gas is basically not discharged, so that a vacuum state is formed inside the ceramic filter disc 3, and an extremely high vacuum degree can be maintained, so that the filtration coefficient is greatly improved, and solid particles are accumulated on the surface of the ceramic filter disc 3 to form a filter cake, and the filtrate is continuously discharged through the ceramic filter disc 3 and the filter tube 4 until it is drained;

[0042] During normal filtration, when the ceramic filter disc 1 is halfway out of the liquid level, the filter tube 4 is driven to rotate by the No. 1 motor 5, thereby rotating the ceramic filter disc 1, indirectly ensuring the effective filtration area;

[0043] When the filtration pressure decreases, the suction port 7 is closed, the backwash valve 9 is opened, and the ceramic filter disc 3 is cleaned by backwashing to regenerate the filter disc and restore the flux;

[0044] When the liquid level reaches the bottom line, the bottom discharge valve 10 can be opened, and the screw pusher 12 can be started by the second motor 11 to discharge all the materials accumulated at the bottom.

Claims

1. A ceramic disc vacuum filter, comprising a filter box (1), characterized in that: Three groups of ceramic disc filter mechanisms (2) are arranged inside the filter box (1). The three groups of ceramic disc filter mechanisms (2) are arranged in an inverted triangle shape. The ceramic disc filter mechanism (2) comprises a ceramic filter disc (3) and a filter tube (4). The ceramic filter disc (3) is mounted on the surface of the filter tube (4). The number of ceramic filter discs (3) on each filter tube (4) is set to seven. The seven ceramic filter discs (3) are distributed in a linear array. A No. 1 motor (5) is mounted on one side of the filter box (1). A rotary joint (6) is mounted on the other side of the filter box (1). One end of the filter tube (4) is connected to the No. 1 motor (5) in a transmission manner. The other end of the filter tube (4) is connected to the rotary joint (6) in a rotation manner. A suction port (7) is mounted on the end of the rotary joint (6) away from the filter tube (4).

2. A ceramic disc vacuum filter according to claim 1, characterized in that: The three suction ports (7) are all connected to the same suction pipe (8), and a backwash valve (9) is installed at the connection between the suction port (7) and the rotary joint (6).

3. A ceramic disc vacuum filter according to claim 1, characterized in that: A discharge valve (10) is fixedly connected to the bottom of the filter box (1), and a second motor (11) is installed below the side wall of the filter box (1).

4. A ceramic disc vacuum filter according to claim 3, characterized in that: A screw pusher (12) is arranged at the bottom of the filter box (1), one end of the screw pusher (12) is transmission-connected to the second motor (11), and the discharge valve (10) is arranged below the other end of the screw pusher (12).

5. A ceramic disc vacuum filter according to claim 1, characterized in that: A feed port (13) is fixedly connected to one side of the filter box (1), and a drain port (14) is fixedly connected to the other side of the filter box (1).

6. A ceramic disc vacuum filter according to claim 1, characterized in that: A sealing top cover (15) is installed on the top of the filter box (1), and a supporting leg (16) is fixedly connected to the bottom of the filter box (1).

7. A ceramic disc vacuum filter according to claim 1, characterized in that: The bottom cross-section of the filter box (1) is in the shape of an inverted triangle.

8. The ceramic disc vacuum filter according to claim 1, characterized in that: The ceramic filter disc (3) is made of hydrophilic ceramic sintered alumina.

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