A disc filter

Abstract

The present invention relates to the field of disc filters, and specifically discloses a disc filter, including a disc filter housing, wherein a filter disc is arranged inside the disc filter housing, the filter disc is vertically stacked and assembled, a filter frame is formed between the upper and lower disc surfaces, a main shaft is vertically arranged inside the disc filter housing, and the filter disc is arranged on the main shaft; and also includes a support frame, the disc filter housing is rotatably connected to the support frame, and a rotating mechanism is arranged on the support frame, and the rotating mechanism is used to drive the disc filter to rotate. The advantage of the present invention is that when the disc filter is unloading soil, it only needs to rotate the disc filter clockwise or counterclockwise by 0 to 90 degrees, and the soil on the filter disc will automatically fall off the disc due to gravity, and with water flushing, the diatomaceous earth on the disc does not need to be unloaded by centrifugal force, which saves the loss of electric energy, is simpler in structure, and avoids the problem of liquid leakage caused by the loose sealing of the main shaft and the filter rotating seal.

Description

Technical Field

[0001] The invention relates to the field of disc filters, in particular to a disc filter. Background Art

[0002] The horizontal disc filter host is widely used in the food, beverage and liquor industries. It has the following disadvantages from the perspective of manufacturing and use:

[0003] 1. The main unit of the horizontal disc filter uses a central axis to rotate and drive the disc, and water is used to flush and unload the soil. The food industry has strict food hygiene requirements for sealing and lubrication, and the sealing ring material and lubrication requirements are particularly high. Even if the best sealing materials are used, this structure also has many sealing systems, which will eventually wear out and cause leakage. Some equipment manufacturers often use cheap materials or cheap sealing components to save costs, which often leads to sealing ring damage and leakage problems during customer use, thus affecting the normal production of customers; using the best sealing materials leads to higher customer use and maintenance costs;

[0004] 2. High-power motors are required to drive the central axis to rotate at high speed during soil unloading, which results in high energy consumption;

[0005] 3. High-speed and high-load operation equipment is equipped with hydraulic coupling, frequency conversion and other functions, and the auxiliary cost is quite high;

[0006] 4. Safety issues: Especially in the liquor industry, this type of filter is prone to leakage, and the explosion and fire prevention work requires particularly high standards, so the operating costs are high. Summary of the invention

[0007] The object of the present invention is to overcome the disadvantages of the prior art and provide a disc filter which has a simple structure and can easily filter out the upper filter layer on the filter disc.

[0008] The objective of the present invention is achieved through the following technical scheme: a disc filter, comprising a disc filter housing, a filter disc is arranged inside the disc filter housing, the filter disc is vertically stacked and assembled, a filter frame is formed between the upper and lower disc surfaces, a main shaft is vertically arranged inside the disc filter housing, and the filter disc is arranged on the main shaft; it also includes a support frame, the disc filter housing is rotatably connected to the support frame, a rotating mechanism is arranged on the support frame, and the rotating mechanism is used to drive the disc filter to rotate, so that it rotates 0~90°.

[0009] Specifically, a bearing seat is arranged on the support frame, a bearing is arranged in the bearing seat, a rotating shaft is fixed in the inner ring of the bearing, and the rotating shaft is fixedly connected to the disc filter housing to realize the rotational connection between the disc filter and the support frame.

[0010] Specifically, both sides of the disc filter housing are rotatably connected to the support frame.

[0011] Specifically, the rotating mechanism includes a rotating motor arranged on a supporting frame, an output end of the rotating motor is connected to a worm, the rotating shaft is connected to a turbine, and the worm is meshed with the turbine.

[0012] Specifically, a cleaning liquid inlet and a clarified liquid outlet are respectively arranged on the top of the disc filter housing.

[0013] Specifically, a clarified liquid inlet and a soil discharge pipe communicating with the interior of the housing are arranged at the bottom of the housing of the disc filter.

[0014] Specifically, the top of the main shaft is connected to the filter housing and is sealed by a first sealing ring, and the bottom of the main shaft is connected to the filter housing and is sealed by a second sealing ring.

[0015] The present invention has the following advantages:

[0016] 1. When unloading soil from the disc filter, you only need to rotate the disc filter clockwise or counterclockwise 0~90°, and the soil on the filter disc will automatically fall off the disc due to gravity. With water flushing, the diatomaceous earth on the disc does not need to be unloaded by centrifugal force, which saves energy loss, is simpler in structure, and avoids the problem of liquid leakage caused by loose sealing between the main shaft and the filter rotation seal.

[0017] 2. Compared with the prior art, the disc filter of the present invention eliminates the main shaft transmission and hydraulic coupler at the bottom of the filter in the prior art, eliminates the original rotary seal, and adopts a static seal structure, which has a better sealing effect and prevents liquid leakage in the filter more safely.

[0018] 3. Add the main machine soil unloading tilting structure, and only a small-power reduction motor is needed to realize the tilting of the entire filter main machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the disc filter housing of the present invention in a rotating working state;

[0021] In the figure: 1-disc filter housing, 2-first sealing ring, 3-clarified liquid outlet, 4-cleaning liquid inlet, 5-rotating mechanism, 6-filter disc, 7-support frame, 8-bearing seat, 9-rotating shaft, 10-second sealing ring, 11-residual liquid outlet, 12-soil discharge pipe, 13-clarified liquid inlet, 14-main shaft. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0023] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] like Figures 1-2As shown, a disc filter comprises a disc filter housing 1, wherein a filter disc 6 is arranged inside the disc filter housing 1, wherein the filter disc 6 is vertically stacked and assembled, and a filter frame is formed between the upper and lower disc surfaces, and a main shaft 14 is vertically arranged inside the disc filter housing 1, and the filter disc 6 is arranged on the main shaft 14; further comprising a support frame 7, wherein the disc filter housing 1 is rotatably connected to the support frame 7, and a rotating mechanism 5 is arranged on the support frame 7, and the rotating mechanism 5 is used to drive the disc filter to rotate so that it rotates 0-90 degrees. In the prior art, when cleaning the filter layer on the filter disc in the filter, it is necessary to The main shaft 14 needs to be connected to an external soil unloading motor so that the soil unloading motor drives the main shaft 14 to rotate, thereby driving the filter disc 6 to rotate. When the filter disc 6 rotates, the upper filter layer on the filter disc 6 can be thrown out, and then the cleaning liquid is introduced for cleaning. In the prior art, since the main shaft 14 needs to rotate and needs to be connected to an external soil unloading motor, the main shaft 14 needs to be precisely sealed with the disc filter housing 1, and the requirements for sealing and lubrication are particularly high. The food industry has strict food hygiene requirements for sealing, lubrication, etc., and the requirements for sealing ring material and lubrication are particularly high. Even if the best sealing material is used, this structure also has many sealing systems, which will eventually cause leakage due to wear and tear, and in The soil unloading needs high-power motor power to drive the central axis to rotate at high speed, which has high energy consumption, and it also needs to adapt to the corresponding high-speed and high-load operation equipment, and be equipped with hydraulic coupling, frequency conversion and other functions, and the auxiliary cost is quite high. In order to solve the problems existing in the above-mentioned prior art, the present invention cancels the structure of the soil unloading motor, adopts a rotating mechanism 5 connected with the disc filter housing 1, and when it is necessary to clean the upper filter layer, the rotating mechanism 5 on the support frame 7 drives the disc filter housing 1 to rotate around the part where the disc filter housing 1 is rotatably connected to the support frame 7, so that the disc filter housing 1 is tilted by 0 to 90 degrees. After the disc filter housing 1 is tilted, the upper filter on the filter disc 6 is filtered. The filter layer will fall down due to gravity, thereby cleaning up the upper filter layer. The upper filter layer can be cleaned up without centrifugal action. Compared with the prior art, the present invention has a simpler structure. Since the main shaft 14 does not need to rotate, the main shaft 14 and the disc filter housing 1 do not need a rotary seal. A static seal is used, which simplifies the seal structure and saves costs. It also eliminates the problem of leakage caused by wear caused by the rotary seal and has higher safety performance. The present invention uses a rotating motor to drive the disc filter housing 1 to rotate. Only a low-power motor is needed to realize the rotation of the disc filter housing 1. Compared with the prior art, it greatly saves energy consumption.

[0025] Furthermore, a bearing seat 8 is provided on the support frame 7, a bearing is provided in the bearing seat 8, a rotating shaft 9 is fixed in the inner ring of the bearing, and the rotating shaft 9 is fixedly connected to the disc filter housing 1 to realize the rotational connection between the disc filter and the support frame 7. The function of the support frame 7 is mainly to provide support and provide space for the disc filter housing 1 to rotate.

[0026] Furthermore, both sides of the disc filter housing 1 are rotatably connected to the support frame 7, and the rotatable connection on both sides can realize the rotation of the disc filter housing 1 around the rotatable connection.

[0027] Furthermore, the rotating mechanism 5 includes a rotating motor arranged on a supporting frame 7, the output end of the rotating motor is connected to a worm, the rotating shaft 9 is connected to a turbine, the worm is meshed with the turbine, and a transmission relationship of a worm gear is adopted. The rotating mechanism 5 has a self-locking function, so that when the disc filter housing 1 is cleaning the upper filter layer, the rotation angle of the disc filter housing 1 can be kept fixed to avoid restoring the vertical state due to gravity.

[0028] Furthermore, the top of the disc filter housing 1 is respectively provided with a cleaning liquid inlet 4 and a clarified liquid outlet 3, and the bottom of the disc filter housing 1 is provided with a clarified liquid inlet 13 and a soil discharge pipe 12 connected to the inside of the housing. When cleaning the upper filter layer, the cleaning liquid is introduced into the cleaning liquid to cooperate with the rotation of the disc filter housing 1 to clean the filter disc 6, so that it is cleaned, and the upper filter layer is discharged through the soil discharge pipe 12 provided at the bottom of the disc filter housing 1; the clarified liquid inlet 13 and the clarified liquid outlet 3 are provided to introduce diatomaceous earth solution into the filter so that a filter layer is formed on the filter disc 6. After that, the clarified liquid is introduced into the filter through the clarified liquid inlet 13, and filtered through the filter layer on the filter disc 6. After filtration, it is discharged from the clarified liquid outlet 3 to complete the filtration; a residual liquid outlet 11 is also provided at the bottom of the disc filter housing 1.

[0029] Furthermore, the top of the main shaft 14 is connected to the filter housing 1 and sealed by the first sealing ring 2, and the bottom of the main shaft 14 is connected to the filter housing 1 and sealed by the second sealing ring 10. The present invention adopts a hermetic sealing structure with a simple structure.

[0030] The working process of the present invention is as follows: when in use, the diatomite solution in the diatomite adding tank is pumped into the disc filter through the diatomite pre-coating pump, and a filter layer is formed on the filter disc 6 through circulation, and then the liquid to be clarified is pumped into the disc filter for filtration by the main wine pump; after the filtration is completed, the rotary motor rotates to drive the disc filter to rotate to 0-90 degrees with the ground, and the upper filter layer on the filter disc 6 is poured out and discharged by gravity or backwashing liquid, and the filter is rotated to the filtering state, and the filter is cleaned at night, and waits for the next filtration.

[0031] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above-mentioned technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. A disc filter, characterized in that: The invention comprises a disc filter housing (1), wherein a filter disc (6) is arranged inside the disc filter housing (1), wherein the filter disc (6) is vertically stacked and assembled, and a filter frame is formed between the upper and lower disc surfaces; a main shaft (14) is vertically arranged inside the disc filter housing (1), and the filter disc (6) is arranged on the main shaft (14); and further comprises a support frame (7), wherein the disc filter housing (1) is rotatably connected to the support frame (7), and a rotating mechanism (5) is arranged on the support frame (7), wherein the rotating mechanism (5) is used to drive the disc filter to rotate so that the disc filter rotates 0 to 90 degrees, and wherein the rotating mechanism (5) drives the disc filter housing (1) to rotate around a portion where the disc filter housing (1) is rotatably connected to the support frame (7); the top of the main shaft (14) is connected to the filter housing (1) and is sealed by a first sealing ring (2), and the bottom of the main shaft (14) is connected to the filter housing (1) and is sealed by a second sealing ring (10), and the main shaft (14) does not need to rotate.

2. A disc filter according to claim 1, characterized in that: A bearing seat (8) is arranged on the support frame (7), a bearing is arranged in the bearing seat (8), a rotating shaft (9) is fixed in the inner ring of the bearing, and the rotating shaft (9) is fixedly connected to the disc filter housing (1), thereby realizing a rotational connection between the disc filter and the support frame (7).

3. A disc filter according to claim 2, characterized in that: Both sides of the disc filter housing (1) are rotatably connected to the support frame (7).

4. A disc filter according to claim 3, characterized in that: The rotating mechanism (5) comprises a rotating motor arranged on a support frame (7), the output end of the rotating motor is connected to a worm, the rotating shaft (9) is connected to a worm wheel, and the worm is meshed with the worm wheel.

5. A disc filter according to claim 1, characterized in that: A cleaning liquid inlet (4) and a clarified liquid outlet (3) are respectively arranged on the top of the disc filter housing (1).

6. A disc filter according to claim 1, characterized in that: The bottom of the disc filter housing (1) is provided with a clarified liquid inlet (13) and a soil discharge pipe (12) which are connected to the interior of the housing.

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