Ceramic diaphragm arc section dipping mechanism

Abstract

The utility model provides a ceramic membrane piece arc section dip -coating mechanism, including clamp, install ceramic membrane piece on clamp, motor of driving clamp rotation, and the vacuum pump of clamp intercommunication, lifting platform, place the membrane liquid tank on lifting platform, vacuum suction of ceramic membrane piece negative pressure to vacuum pump, motor drive ceramic membrane piece arc section dynamic dip -coating in membrane liquid tank. Adopt dynamic rotation and negative pressure to ceramic membrane piece arc section dip -coating membrane liquid, can make ceramic membrane piece arc section surface cover even dense membrane layer, optimized arc angle film -forming process, reduced the processing requirement to arc angle, improved ceramic membrane piece's processing yield, reduced ceramic membrane piece's processing cost, improved filtration precision, besides, ceramic membrane piece passes through clamp fixed, in coating process, can realize ceramic membrane piece's no contact, effectively prevented the coating defect that improper contact caused before membrane layer dry.

Description

Technical Field

[0001] This utility model relates to the field of ceramic diaphragm technology, and in particular to a ceramic diaphragm arc-shaped part dip coating mechanism. Background Technology

[0002] Ceramic membranes are disc-shaped filter media made of ceramic materials. They have advantages such as high mechanical strength, high temperature resistance, corrosion resistance, and good chemical stability, and are widely used in water treatment, food and beverage, biopharmaceutical, and chemical separation fields.

[0003] During application, the ceramic membrane rotates at high speed, with the linear velocity being the highest at the side arc, which also subjectes the material to high-speed shearing. This can easily damage the membrane layer and affect the filtration accuracy. Therefore, the membrane layer at the arc part of the ceramic membrane has very high quality requirements.

[0004] However, the processing of the curved portion of ceramic membranes often presents problems such as uneven transitions, asymmetry, and eccentricity. During film formation, the membrane layer in the curved portion is subjected to tensile stress, all of which can lead to membrane defects such as uneven coating, cracks, and large pores. Furthermore, improper contact during the coating process can cause membrane defects such as missing layers, scratches, and oil contamination, significantly impacting filtration accuracy and severely limiting the industrial application of ceramic membranes, particularly in high-end product filtration and separation fields such as semiconductors, biomedicine, and new energy. Therefore, a ceramic membrane curved portion dip-coating mechanism was designed to address these technical problems. Utility Model Content

[0005] The purpose of this invention is to disclose a ceramic membrane arc-shaped part dipping and coating mechanism. By using dynamic rotation and negative pressure to dip and coat the ceramic membrane arc-shaped part with the coating solution, a uniform and dense membrane layer can be formed on the surface of the ceramic membrane arc-shaped part. This optimizes the arc-shaped corner film formation process, reduces the processing requirements for the arc-shaped corner, improves the yield of ceramic membranes, reduces the processing cost of ceramic membranes, and improves the filtration accuracy. In addition, the ceramic membrane is fixed by a clamp, and non-contact coating can be achieved during the coating process, effectively preventing coating defects caused by improper contact before the membrane layer dries.

[0006] To achieve the above objectives, this utility model provides a ceramic diaphragm arc portion dip coating mechanism, including a clamp, a ceramic diaphragm mounted on the clamp, a motor driving the clamp to rotate, a vacuum pump connected to the clamp, a lifting platform, and a film-forming liquid tank placed on the lifting platform; the vacuum pump draws negative pressure into the ceramic diaphragm, and the motor drives the arc portion of the ceramic diaphragm to be dynamically dip coated in the film-forming liquid tank.

[0007] In some embodiments, a rotary joint is also included, through which the clamp and the vacuum pump are connected.

[0008] In some embodiments, a bracket is also included, on which the motor is mounted.

[0009] In some embodiments, the clamp includes two hollow tubes and flanges connected to the hollow tubes; the two flanges are connected by bolts, the ceramic diaphragm is clamped by the two flanges, a first sealing ring is provided between the ceramic diaphragm and the flanges, and the hollow tubes are provided with internal threads.

[0010] In some embodiments, the flange seal is welded to one end of the hollow tube.

[0011] In some implementations, one hollow tube is screwed to the motor shaft, and the other hollow tube is screwed to the rotary joint.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by using dynamic rotation and negative pressure to immerse the arc-shaped part of the ceramic membrane in the coating solution, a uniform and dense membrane layer can be covered on the surface of the arc-shaped part of the ceramic membrane, optimizing the arc-shaped corner film formation process, reducing the processing requirements for the arc-shaped corner, improving the yield of the ceramic membrane, reducing the processing cost of the ceramic membrane, and improving the filtration accuracy; in addition, the ceramic membrane is fixed by a clamp, and non-contact can be achieved during the coating process, effectively preventing coating defects caused by improper contact before the membrane layer dries. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the ceramic diaphragm arc-shaped part dip-coating mechanism shown in this utility model;

[0014] Figure 2 for Figure 1 The diagram shows the structure of the clamp. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.

[0016] like Figure 1 and 2 The ceramic diaphragm arc portion dip coating mechanism shown includes a bracket 33, a motor 34 mounted on the bracket 33, a clamp 1 driven by the motor 34, and a ceramic diaphragm 2 mounted on the clamp 1.

[0017] The clamp 1 includes two hollow tubes 11 and a flange 12 connected to the hollow tubes 11. Specifically, the flange 12 is sealed and welded to one end of the hollow tube 11.

[0018] The hollow tube 11 is provided with internal threads, which facilitates connection with the motor 34 shaft to realize the dynamic rotation of the ceramic diaphragm 2, and connection with the rotary joint 36 to realize the negative pressure suction of the ceramic diaphragm 2. The hollow tube 11 is hollow, which facilitates the air pressure to reach the interior of the ceramic diaphragm 2.

[0019] The ceramic diaphragm 2 is clamped by two flanges 12, which are connected by bolts and nuts (not shown), thus forming an integral structure with the clamp 1, which can rotate synchronously. A first sealing ring 13 is provided between the ceramic diaphragm 2 and the flanges 12 to ensure airtightness and prevent air leakage when the ceramic diaphragm 2 is subjected to negative pressure suction.

[0020] It also includes a lifting platform 31 and a film-forming solution tank 32 placed on the lifting platform 31. The film-forming solution tank 32 is filled with film-forming solution, and the arcuate portion of the ceramic membrane 2 is immersed in the film-forming solution. The height of the film-forming solution tank 32 can be adjusted by the lifting platform 31 to facilitate the immersion coating operation.

[0021] A hollow tube 11 of the fixture 1 is connected to the shaft of the motor 34. Specifically, the shaft of the motor 34 has external threads, and the hollow tube 11 and the shaft of the motor 34 are screwed together, making disassembly and assembly convenient. The motor 34 can drive the fixture 1, thereby realizing the dynamic rotation of the ceramic diaphragm 2. The dynamic rotation of the ceramic diaphragm 2 ensures that droplets can be uniformly deposited on the surface of the arc portion of the ceramic diaphragm 2, effectively avoiding the "shadow effect" (unspecified areas) caused by static spraying, and obtaining a film layer with extremely high thickness distribution uniformity.

[0022] It also includes a vacuum pump 35 and a rotary joint 36 connected to the vacuum pump 35. Another hollow tube 11 of the fixture 1 is screwed to the rotary joint 36, so as not to affect the rotation of the fixture 1. The vacuum pump 35 generates negative pressure, which is drawn into the ceramic membrane 2 through the hollow tube 11, thereby creating negative pressure inside the ceramic membrane 2. When the droplets of the film-forming solution come into contact with the arc surface of the ceramic membrane 2, they are "drawn" into the microporous structure or surface gaps, which significantly enhances the permeability and anchoring effect of the droplets, reduces the rebound and splashing of surface droplets, improves the initial adhesion, and promotes a more uniform and continuous spread of the bottom layer. This is crucial for forming a defect-free, low-porosity, dense separation layer.

[0023] By using dynamic rotation and negative pressure to immerse the arc portion of the ceramic membrane 2 in the membrane coating solution, a uniform and dense membrane layer can be covered on the surface of the arc portion of the ceramic membrane 2. This optimizes the arc corner membrane formation process, reduces the processing requirements for the arc corner, improves the yield of the ceramic membrane 2, reduces the processing cost of the ceramic membrane 2, and improves the filtration accuracy.

[0024] After coating is completed, the fixture 1 and the ceramic diaphragm 2 are suspended together for drying. During the coating process, only the hollow tube 11 needs to be disassembled and reassembled; there is no need to contact the ceramic diaphragm 2, which effectively prevents coating defects caused by improper contact before the film dries.

[0025] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ceramic diaphragm arc-shaped portion dip-coating mechanism, characterized in that, The device includes a fixture, a ceramic diaphragm mounted on the fixture, a motor that drives the fixture to rotate, a vacuum pump connected to the fixture, a lifting platform, and a film-forming liquid tank placed on the lifting platform; the vacuum pump draws negative pressure into the ceramic diaphragm, and the motor drives the arcuate portion of the ceramic diaphragm to be dynamically immersed in the film-forming liquid tank.

2. The ceramic diaphragm arc-shaped portion dip-coating mechanism according to claim 1, characterized in that, It also includes a rotary joint, through which the clamp and the vacuum pump are connected.

3. The ceramic diaphragm arc-shaped portion dip-coating mechanism according to claim 1, characterized in that, It also includes a bracket on which the motor is mounted.

4. The ceramic diaphragm arc-shaped portion dip-coating mechanism according to claim 2, characterized in that, The clamp includes two hollow tubes and flanges connected to the hollow tubes; the two flanges are connected by bolts, the ceramic diaphragm is clamped by the two flanges, a first sealing ring is provided between the ceramic diaphragm and the flanges, and the hollow tubes are provided with internal threads.

5. The ceramic diaphragm arc-shaped portion dip-coating mechanism according to claim 4, characterized in that, The flange seal is welded to one end of the hollow tube.

6. The ceramic diaphragm arc-shaped portion dip-coating mechanism according to claim 4, characterized in that, One hollow tube is screwed to the motor shaft, and the other hollow tube is screwed to the rotary joint.

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