Feeding and discharging coaxial device

Abstract

The utility model provides a feeding and discharging coaxial device. The feeding and discharging coaxial device comprises a main shaft, a plurality of liquid distribution discs and a plurality of filtering membranes, wherein the main shaft is sequentially and tightly sleeved with the liquid distribution discs; the main shaft is provided with a liquid inlet channel, a plurality of first liquid inlets communicated with the liquid inlet channel, a liquid outlet channel and a plurality of first liquid outlets communicated with the liquid outlet channel, the first liquid inlets and the first liquid outlets are arranged in a staggered mode, the liquid distribution disc comprises an annular body and an annular protrusion, the annular protrusion is sleeved with the filtering membrane, and the filtering membrane is arranged on the annular body. A plurality of first liquid inlets are formed in the annular body, a plurality of second liquid inlets are formed in the annular body, a plurality of second liquid outlets are formed in the annular protrusion, the first liquid inlets are communicated with the second liquid inlets, and the liquid outlets of the filtering membranes, the second liquid outlets and the first liquid outlets are sequentially communicated. According to the coaxial feeding and discharging device provided by the utility model, the liquid inlet channel and the liquid outlet channel are simultaneously arranged on the main shaft, so that synchronous feeding and discharging are realized, in addition, raw material liquid can be rotationally dispersed after being fed, blockage cannot be caused, and the filtering efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to a coaxial feeding and discharging device. Background Art

[0002] In the dynamic ceramic membrane filtration system, the filter element rotates dynamically during use. The speed of the hollow main shaft controlled by the reducer motor drives the hollow main shaft to rotate clockwise or counterclockwise or alternately clockwise and counterclockwise. A ceramic membrane disk is provided on the hollow main shaft. The raw material liquid in the filtration system will rotate with the rotation of the hollow main shaft. The raw material liquid forms a shear force on the surface of the ceramic membrane disk. Due to cross-flow filtration, the permeate enters the interior of the ceramic membrane disk, flows out through the liquid outlet, and is discharged by the hollow main shaft. The trapped concentrated liquid remains outside the ceramic membrane disk, completing the filtration and separation of the raw material liquid. In the prior art, the raw material liquid first enters the filtration system from the end cover of the equipment, and then the hollow main shaft rotates for filtration, which affects the filtration efficiency. In addition, the raw material liquid inlet is easily blocked, especially for high-concentration raw material liquid, which seriously affects the filtration efficiency. Utility Model Content

[0003] The utility model aims to disclose a coaxial feeding and discharging device, in which a liquid feeding channel and a liquid discharging channel are arranged on the main shaft at the same time, so as to realize synchronous feeding and discharging. In addition, the raw material liquid can be rotated and dispersed after feeding, and will not cause blockage, thereby greatly improving the filtering efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides a coaxial device for material inlet and outlet, including a main shaft, a plurality of liquid separation plates tightly mounted on the main shaft in sequence, and a plurality of filter membranes; the main shaft is provided with an inlet channel, a plurality of first liquid inlets connected to the liquid inlet channel, a liquid outlet channel, a plurality of first liquid outlets connected to the liquid outlet channel, the first liquid inlet and the first liquid outlet are staggered, the liquid separation plate includes an annular main body and an annular protrusion, the filter membrane is mounted on the annular protrusion, the annular main body is provided with a plurality of second liquid inlets, the annular protrusion is provided with a plurality of second liquid outlets, the first liquid inlet and the second liquid inlet are connected, and the liquid outlet hole, the second liquid outlet and the first liquid outlet of the filter membrane are connected in sequence.

[0005] In some embodiments, a fixed disk and a movable disk are further included on the main shaft, wherein the fixed disk and the movable disk are located at two ends of the liquid separation disk and squeeze the liquid separation disk.

[0006] In some embodiments, a round nut and a round nut stopping washer connected to the main shaft are further included, and the round nut abuts against the movable disk.

[0007] In some embodiments, the fixed disk and the main shaft are an integrated structure.

[0008] In some embodiments, a backflushing channel is provided on the fixed disk, and the backflushing channel is connected to the liquid outlet channel.

[0009] In some embodiments, the liquid outlet channel includes a first liquid outlet channel and a second liquid outlet channel that are staggered, the first liquid outlet is located on the first liquid outlet channel, and the first liquid outlet channel and the second liquid outlet channel are respectively located at two ends of the main axis.

[0010] In some embodiments, the second liquid outlet channel cavity is larger than the first liquid outlet channel cavity, and the second liquid outlet channel is located at the center of the main axis.

[0011] In some embodiments, two sealing rings are provided on the annular protrusion of the liquid separation plate, the filter membrane is located between the two sealing rings, and the sealing rings are squeezed by adjacent liquid separation plates.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the coaxial inlet and outlet device provided by the utility model has a liquid inlet channel and a liquid outlet channel simultaneously arranged on the main shaft, thereby realizing synchronous inlet and outlet. In addition, the raw material liquid can be rotated and dispersed after feeding without causing blockage, thereby greatly improving the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the coaxial feeding and discharging device shown in the utility model;

[0014] Figure 2 for Figure 1 A perspective view of the spindle shown in ;

[0015] Figure 3 for Figure 2 A front view of the spindle shown in ;

[0016] Figure 4 for Figure 2 An axial cross-sectional view of the spindle shown in ;

[0017] Figure 5 for Figure 1 The structural schematic diagram of the liquid separation plate shown in;

[0018] Figure 6 for Figure 1 Schematic diagram of the structure of the filter membrane shown in. DETAILED DESCRIPTION

[0019] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0020] like Figure 1-6 The coaxial inlet and outlet device shown comprises a main shaft 1, a plurality of liquid separation plates 4 which are tightly sleeved on the main shaft 1 in sequence, and a plurality of filter membranes 5.

[0021] The main shaft 1 is provided with a liquid inlet channel 12, a plurality of first liquid inlets 121 connected to the liquid inlet channel 12, a liquid outlet channel, and a plurality of first liquid outlets 111 connected to the liquid outlet channel. The first liquid inlet 121 and the first liquid outlet 111 are arranged in a staggered manner to facilitate the assembly of the liquid separation plate 4. The liquid inlet channel 12 and the liquid outlet channel are provided on the main shaft 1 at the same time, so as to realize synchronous material inlet and outlet and improve the filtering efficiency.

[0022] The liquid outlet channel includes a first liquid outlet channel 11 and a second liquid outlet channel 32 which are arranged in a staggered manner, so that the second liquid outlet channel 32 is located at the center of the main shaft 1, thereby ensuring the strength of the main shaft 1 during rotation and preventing the occurrence of eccentricity. The cavity of the second liquid outlet channel 32 is larger than the cavity of the first liquid outlet channel 11, so that the liquid in the first liquid outlet channel 11 can be easily converged into the second liquid outlet channel 32 and discharged.

[0023] The first liquid outlet 111 is located on the first liquid outlet channel 11 , and the first liquid outlet channel 11 and the second liquid outlet channel 32 are respectively located at two ends of the main shaft 1 .

[0024] The liquid separation plate 4 includes an annular body 41 and an annular protrusion 42, and the filter membrane 5 is sleeved on the annular protrusion 42. The annular body 41 is provided with a plurality of second liquid inlets 410, and the annular protrusion 42 is provided with a plurality of second liquid outlets 420. Figure 5 As shown, the second liquid outlet 420 is open, and the adjacent liquid separation plates 4 are squeezed to make the second liquid outlet 420 a closed liquid outlet channel.

[0025] The first liquid inlet 121 is connected to the second liquid inlet 410 , and the liquid outlet 50 , the second liquid outlet 420 , and the first liquid outlet 111 of the filter membrane 5 are connected in sequence.

[0026] The raw material liquid enters from the liquid inlet channel 12, and then rotates and disperses into the filtration system through the first liquid inlet 121 and the second liquid inlet 410 in sequence. On the one hand, the rotation and dispersion will not cause blockage of the liquid inlet. On the other hand, the rotation and dispersion of the raw material liquid entering the filtration system has a stirring and disturbing effect on the raw material liquid in the filtration system, which can prevent the filter cake from being deposited on the filter membrane 5, thereby improving the filtration efficiency.

[0027] It also includes a fixed disk 3 and a movable disk 2 located on the main shaft 1, and the fixed disk 3 and the movable disk 2 are located at both ends of the liquid separation disk 4 and squeeze the liquid separation disk 4, so as to fix the position of the liquid separation disk 4 and the filter membrane 5, prevent the liquid separation disk 4 and the filter membrane 5 from axial movement, so that the first liquid inlet 121 and the second liquid inlet 410 are kept aligned, and the liquid outlet hole 50, the second liquid outlet 420, and the first liquid outlet 111 of the filter membrane 5 are kept aligned.

[0028] Two sealing rings are arranged on the annular protrusion 42 of the liquid separation plate 4, and the filter membrane 5 is located between the two sealing rings. The sealing rings on the adjacent liquid separation plates 4 are squeezed against each other to play a sealing role, thereby preventing the unfiltered raw material liquid from entering. Moreover, due to the circumferential friction force of the sealing ring, the filter membrane 5 can be prevented from rotating circumferentially on the annular protrusion 42, so that the liquid outlet 50 and the second liquid outlet 420 of the filter membrane 5 can always be aligned. In addition, sealing rings are also arranged between the fixed plate 3, the liquid separation plate 4, and the movable plate 2 to play a sealing role.

[0029] It also includes a round nut 6 and a round nut stopping washer 61 connected to the main shaft 1 . The round nut 6 abuts against the movable disk 2 to fix the movable disk 2 .

[0030] The fixed disk 3 and the main shaft 1 are an integrated structure. The fixed disk 3 is provided with a recoil channel 31, and the recoil channel 31 is connected to the liquid outlet channel for cleaning the liquid outlet channel.

[0031] The working principle of the coaxial inlet and outlet device is as follows: the raw liquid enters the liquid inlet channel 12, then enters the second liquid inlet 410 through the first liquid inlet 121, and is discharged into the filtration system from the second liquid inlet 410. Subsequently, the raw liquid is filtered through the filter membrane 5, discharged from the liquid outlet hole 50 to the second liquid outlet 420, and then discharged from the first liquid outlet 111 to the first liquid outlet channel 11, and finally discharged from the main shaft 1 from both ends of the second liquid outlet channel 32.

[0032] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Coaxial feeding and discharging device, characterized in that: It includes a main shaft, several liquid separation plates tightly mounted on the main shaft in sequence, and several filter membranes; the main shaft is provided with a liquid inlet channel, several first liquid inlets connected to the liquid inlet channel, a liquid outlet channel, and several first liquid outlets connected to the liquid outlet channel, the first liquid inlet and the first liquid outlet are staggered, the liquid separation plate includes an annular main body and an annular protrusion, the filter membrane is mounted on the annular protrusion, the annular main body is provided with several second liquid inlets, the annular protrusion is provided with several second liquid outlets, the first liquid inlet and the second liquid inlet are connected, and the liquid outlet hole, the second liquid outlet and the first liquid outlet of the filter membrane are connected in sequence.

2. The coaxial feeding and discharging device according to claim 1, characterized in that: It also includes a fixed plate and a movable plate located on the main shaft, wherein the fixed plate and the movable plate are located at two ends of the liquid separation plate and squeeze the liquid separation plate.

3. The coaxial feeding and discharging device according to claim 2, characterized in that: It also includes a round nut connected to the main shaft and a round nut stopping washer, wherein the round nut abuts against the movable disk.

4. The coaxial feeding and discharging device according to claim 2, characterized in that: The fixed disk and the main shaft are an integrated structure.

5. The coaxial feeding and discharging device according to claim 4, characterized in that: The fixed disk is provided with a recoil channel, and the recoil channel is communicated with the liquid outlet channel.

6. The coaxial feeding and discharging device according to claim 5, characterized in that: The liquid outlet channel comprises a first liquid outlet channel and a second liquid outlet channel which are arranged in a staggered manner. The first liquid outlet is located on the first liquid outlet channel. The first liquid outlet channel and the second liquid outlet channel are respectively located at two ends of the main axis.

7. The coaxial feeding and discharging device according to claim 6, characterized in that: The second liquid outlet channel cavity is larger than the first liquid outlet channel cavity, and the second liquid outlet channel is located at the center of the main shaft.

8. The coaxial feeding and discharging device according to claim 1, characterized in that: Two sealing rings are arranged on the annular protrusion of the liquid separation plate, the filter membrane is located between the two sealing rings, and the sealing rings are squeezed by the adjacent liquid separation plates.

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