Coating device for coating ultrafiltration membrane with carbon-based material

Abstract

The utility model discloses a coating device for coating an ultrafiltration membrane with a carbon-based material, which comprises a support, a nitrogen cylinder, a gas inlet pipe, a connecting pipe, a membrane covering tank and a waste liquid collecting tank, the nitrogen cylinder, the membrane covering tank and the waste liquid collecting tank are sequentially distributed on the support, and the membrane covering tank comprises an upper sealing cover, a lower sealing cover and a tank body. The upper sealing cover and the lower sealing cover are installed at the upper end and the lower end of the tank body respectively, a liquid inlet pipe is installed at the top of the upper sealing cover, a stirring assembly and a supporting frame are arranged in the tank body, the stirring assembly is installed on the upper sealing cover, and the supporting frame is arranged on the lower sealing cover. According to the utility model, not only can the carbon-based material be uniformly coated on the ultrafiltration membrane to form the carbon-based material modified ultrafiltration membrane, but also turbid liquid of the carbon-based material always passes through the ultrafiltration membrane in the whole coating process due to the fact that the carbon-based material is coated on the ultrafiltration membrane through filtration, so that the phenomenon that the membrane permeation flux of the ultrafiltration membrane is reduced cannot be caused; and the film covering efficiency and quality are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of production of modified ultrafiltration membranes, and particularly relates to a coating device used for coating a carbon-based material on an ultrafiltration membrane. Background Art

[0002] In order to deal with the problem of ultrafiltration membrane pollution caused by natural organic matter, the modification of membrane materials is organically combined with the pretreatment process. The adsorption and catalytic properties of carbon-based materials such as carbon nanotubes, carbon nanofibers, and ordered mesoporous carbon are utilized. A carbon-based material modified layer is constructed on the surface of the ultrafiltration membrane by a surface coating method, and a carbon-based material modified ultrafiltration membrane is prepared. The construction of the carbon-based material modified layer is mostly carried out by immersion. However, the immersion method can easily reduce the membrane permeation flux of the ultrafiltration membrane, which seriously affects the sewage treatment efficiency and sewage treatment quality of the ultrafiltration membrane with the carbon-based material modified layer. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a coating device for coating a carbon-based material on an ultrafiltration membrane, which can not only uniformly coat the carbon-based material on the ultrafiltration membrane to form a carbon-based material modified ultrafiltration membrane, but also because the carbon-based material is coated on the ultrafiltration membrane by filtration, a turbid liquid of the carbon-based material always passes through the ultrafiltration membrane during the entire coating process, which will not cause a phenomenon of reducing the membrane permeation flux of the ultrafiltration membrane, thereby greatly ensuring the efficiency and quality of the coating.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A coating device for coating a carbon-based material on an ultrafiltration membrane comprises a bracket, a nitrogen bottle, an air inlet pipe, a connecting pipe, a film coating tank and a waste liquid collection tank, wherein the nitrogen bottle, the film coating tank and the waste liquid collection tank are sequentially distributed on the bracket, the film coating tank comprises an upper sealing cover, a lower sealing cover and a tank body, the upper sealing cover and the lower sealing cover are respectively mounted on the upper and lower ends of the tank body, a liquid inlet pipe is mounted on the top of the upper sealing cover, a stirring assembly and a supporting frame are arranged in the tank body, the stirring assembly is mounted on the upper sealing cover, and the supporting frame is arranged on the lower sealing cover, the two ends of the air inlet pipe are respectively connected to the nitrogen bottle and the upper sealing cover, and the end of the air inlet pipe passes through the upper sealing cover and is connected to the tank body, the two ends of the connecting pipe are respectively connected to the lower sealing cover and the waste liquid collection tank, and the end of the connecting pipe passes through the lower sealing cover and is connected to the tank body.

[0006] Preferably, a pressure reducing valve is also installed on the nitrogen cylinder, and the air inlet pipe is connected to the pressure reducing valve. The setting of the pressure reducing valve facilitates the control of the pressure of the gas in the pipe, thereby ensuring that the coating is carried out under constant pressure conditions, which greatly ensures the efficiency and quality of the coating.

[0007] Preferably, clamping assemblies are installed on the tank body, the upper sealing cover and the lower sealing cover, and the clamping assemblies cooperate with the connecting pipe. The clamping assemblies are used to fix the connecting pipe to ensure the stability of the connecting pipe during operation.

[0008] Preferably, the clamping assembly includes a mounting plate, a slot and a limiting rod on the mounting plate. The limiting rod is slidably installed on one side wall of the slot, and a limiting hole is opened on the other side wall of the slot. The limiting rod cooperates with the limiting hole. The limiting rod is set to limit the connecting pipe so that the connecting pipe is stuck in the slot, thereby ensuring the stability of the connecting pipe during operation.

[0009] Preferably, the clamping assembly also includes a spring and a limiting ring, the limiting ring is fixedly mounted on the limiting rod, the spring is sleeved on the limiting rod, and the two ends of the spring are respectively mounted on a side wall of the slot and the limiting ring, the spring is set to apply stress to the limiting rod to ensure that the limiting rod is always matched with the limiting hole, thereby clamping the connecting pipe in the slot, ensuring the stability of the connecting pipe during operation.

[0010] Preferably, the stirring assembly includes a motor, a stirring shaft and a stirring blade. The motor is fixedly mounted on the upper sealing cover. The stirring shaft is arranged inside the tank body and is fixedly connected to the output shaft of the motor. A plurality of stirring blades are provided. The plurality of stirring blades are evenly distributed on the stirring shaft and are used to stir the carbon-based material to ensure that the carbon-based material can be evenly coated on the ultrafiltration membrane, thereby greatly improving the coating quality and efficiency of the ultrafiltration membrane. The motor drives the stirring shaft to rotate, and the rotation of the stirring shaft drives the stirring blades to rotate. The rotation of the stirring blades drives the carbon-based material and the solution to be evenly fused.

[0011] Preferably, the support frame includes a support plate and a plurality of support rods, the plurality of support rods are evenly distributed at the bottom of the support plate, a plurality of through holes are evenly opened on the support plate, and the support frame is used to support the ultrafiltration membrane to ensure the coating quality and coating efficiency of the ultrafiltration membrane. The arrangement of the through holes facilitates the input of waste liquid into the bottom of the support plate, thereby achieving the purpose of coating the carbon-based material on the ultrafiltration membrane.

[0012] The beneficial effects of the utility model are:

[0013] 1) This device can not only evenly coat the carbon-based material on the ultrafiltration membrane to form a carbon-based material modified ultrafiltration membrane, but also because the carbon-based material is coated on the ultrafiltration membrane by filtration, there is always turbid liquid of the carbon-based material passing through the ultrafiltration membrane during the entire coating process, which will not cause the phenomenon of reducing the membrane permeation flux of the ultrafiltration membrane, thereby greatly ensuring the efficiency and quality of the coating.

[0014] 2) The setting of the pressure reducing valve of this device facilitates the control of the pressure of the gas in the tube, thereby ensuring that the coating is carried out under constant pressure conditions, greatly ensuring the efficiency and quality of the coating.

[0015] 3) The clamping assembly of the device is used to fix the connecting pipe to ensure the stability of the connecting pipe during operation.

[0016] 4) The setting of the limit rod of the device is used to limit the connecting pipe so that the connecting pipe is stuck in the slot, ensuring the stability of the connecting pipe during operation.

[0017] 5) The spring of the device is used to apply stress to the limit rod to ensure that the limit rod is always matched with the limit hole, so that the connecting pipe is clamped in the slot, ensuring the stability of the connecting pipe during operation.

[0018] 6) This device is used to stir the carbon-based material to ensure that the carbon-based material can be evenly coated on the ultrafiltration membrane, greatly improving the coating quality and efficiency of the ultrafiltration membrane. The motor drives the stirring shaft to rotate, and the rotation of the stirring shaft drives the stirring blades to rotate. The rotation of the stirring blades drives the carbon-based material and the solution to be evenly integrated.

[0019] 7) The support frame of this device is used to support the ultrafiltration membrane to ensure the coating quality and coating efficiency of the ultrafiltration membrane. The setting of the through holes facilitates the input of waste liquid to the bottom of the support plate to achieve the purpose of coating the carbon-based material on the ultrafiltration membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0021] Attached Figure 2 It is a cross-sectional view of the film-coated tank in the utility model.

[0022] Attached Figure 3 It is a schematic diagram of the installation structure of the clamping assembly in the utility model.

[0023] Attached Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0024] Attached Figure 5 It is a structural schematic diagram of the support frame in the utility model.

[0025] In the figure:

[0026] 1. Bracket;

[0027] 2. Nitrogen cylinder;

[0028] 3. Pressure reducing valve;

[0029] 4. Intake pipe;

[0030] 5. Connecting pipe;

[0031] 6. Clamping assembly; 601. Mounting plate; 602. Clamping slot; 603. Limiting hole; 604. Limiting rod; 605. Spring; 606. Limiting ring;

[0032] 7. stirring assembly; 701. motor; 702. stirring shaft; 703. stirring blade;

[0033] 8. Film-coated tank; 801. Lower sealing cover; 802. Tank body; 803. Upper sealing cover;

[0034] 9. Support frame; 901. Support plate; 902. Support rod; 903. Through hole;

[0035] 10. Waste liquid collection tank;

[0036] 11. Liquid inlet pipe. DETAILED DESCRIPTION

[0037] The following is a clear and complete description of the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] like Figure 1 As shown, a coating device for coating a carbon-based material on an ultrafiltration membrane comprises a support 1, a nitrogen bottle 2, an air inlet pipe 4, a connecting pipe 5, a coating tank 8 and a waste liquid collection tank 10, wherein the nitrogen bottle 2, the coating tank 8 and the waste liquid collection tank 10 are sequentially distributed on the support 1, as shown in FIG. Figure 2As shown, the coating tank 8 includes an upper sealing cover 803, a lower sealing cover 801, and a tank body 802. The upper sealing cover 803 and the lower sealing cover 801 are respectively installed at the upper and lower ends of the tank body 802. A liquid inlet pipe 11 is installed on the top of the upper sealing cover 803. A stirring assembly 7 and a support frame 9 are provided in the tank body 802. The stirring assembly 7 is installed on the upper sealing cover 803, and the support frame 9 is arranged on the lower sealing cover 801. The two ends of the air inlet pipe 4 are respectively connected to the nitrogen bottle 2 and the upper sealing cover 803, and the end of the air inlet pipe 4 passes through the upper sealing cover 803 and is connected to the tank body 802. The two ends of the connecting pipe 5 are respectively connected to the lower sealing cover 801 and the waste liquid collection tank 10, and the end of the connecting pipe 5 passes through the lower sealing cover 801 and is connected to the tank body 802.

[0040] As a further optimization scheme of the coating device for coating carbon-based materials on ultrafiltration membranes of the utility model, Figure 1 As shown, a pressure reducing valve 3 is also installed on the nitrogen cylinder 2 , and the air inlet pipe 4 is connected to the pressure reducing valve 3 .

[0041] The arrangement of the pressure reducing valve 3 facilitates the control of the pressure of the gas in the tube, thereby ensuring that the coating is carried out under constant pressure conditions, which greatly ensures the efficiency and quality of the coating.

[0042] As a further optimization scheme of the coating device for coating carbon-based materials on ultrafiltration membranes of the utility model, Figure 4 As shown, a clamping assembly 6 is installed on the tank body 802 , the upper sealing cover 803 and the lower sealing cover 801 , and the clamping assembly 6 cooperates with the connecting pipe 5 .

[0043] The clamping assembly 6 is used to fix the connecting pipe 5 to ensure the stability of the connecting pipe 5 during operation.

[0044] As a further optimization scheme of the coating device for coating carbon-based materials on ultrafiltration membranes of the utility model, Figure 5 As shown, the clamping assembly 6 includes a mounting plate 601, a slot 602 and a limiting rod 604 on the mounting plate 601. The limiting rod 604 is slidably mounted on one side wall of the slot 602, and a limiting hole 603 is opened on the other side wall of the slot 602. The limiting rod 604 cooperates with the limiting hole 603.

[0045] The limiting rod 604 is provided to limit the connecting pipe 5 so that the connecting pipe 5 is stuck in the clamping groove 602, thereby ensuring that the connecting pipe 5 is stable during operation.

[0046] As a further optimization scheme of the coating device for coating carbon-based materials on ultrafiltration membranes of the utility model, Figure 5As shown, the clamping assembly 6 also includes a spring 605 and a limiting ring 606. The limiting ring 606 is fixedly mounted on the limiting rod 604. The spring 605 is sleeved on the limiting rod 604, and both ends of the spring 605 are respectively mounted on a side wall of the clamping slot 602 and the limiting ring 606.

[0047] The spring 605 is provided to apply stress to the limiting rod 604 to ensure that the limiting rod 604 is always matched with the limiting hole 603, so as to clamp the connecting pipe 5 in the clamping groove 602, thereby ensuring the stability of the connecting pipe 5 during operation.

[0048] As a further optimization scheme of the coating device for coating carbon-based materials on ultrafiltration membranes of the utility model, Figure 2 As shown, the stirring assembly 7 includes a motor 701, a stirring shaft 702 and a stirring blade 703. The motor 701 is fixedly mounted on the upper sealing cover 803. The stirring shaft 702 is arranged inside the tank body 802, and the stirring shaft 702 is fixedly connected to the output shaft of the motor 701. The stirring blade 703 is provided with a plurality of stirring blades 703, and the plurality of stirring blades 703 are evenly distributed on the stirring shaft 702.

[0049] It is used to stir the carbon-based material to ensure that the carbon-based material can be evenly coated on the ultrafiltration membrane, which greatly improves the coating quality and efficiency of the ultrafiltration membrane. The motor 701 drives the stirring shaft 702 to rotate, and the rotation of the stirring shaft 702 drives the stirring blade 703 to rotate. The rotation of the stirring blade 703 drives the carbon-based material and the solution to be evenly integrated.

[0050] As a further optimization scheme of the coating device for coating carbon-based materials on ultrafiltration membranes of the utility model, Figure 5 As shown, the support frame 9 includes a support plate 901 and a plurality of support rods 902 . The plurality of support rods 902 are evenly distributed at the bottom of the support plate 901 . A plurality of through holes 903 are evenly opened on the support plate 901 .

[0051] The support frame 9 is used to support the ultrafiltration membrane to ensure the coating quality and coating efficiency of the ultrafiltration membrane. The setting of the through hole 903 facilitates the input of waste liquid to the bottom of the support plate 901 to achieve the purpose of coating the carbon-based material on the ultrafiltration membrane.

[0052] As a further optimization scheme of the coating device for coating carbon-based materials on ultrafiltration membranes of the utility model, Figure 2 As shown, the end of the connecting pipe 5 is located below the supporting plate 901 .

[0053] The waste liquid filtered to the bottom of the support plate 901 can be input into the waste liquid collection tank 10 through the connecting pipe 5, so as to achieve the purpose of collecting the waste liquid.

[0054] During operation, the side of the ultrafiltration membrane that needs to be modified is first placed upward on the support plate 901, and the carbon-based material turbid liquid is input into the tank body 802 from the liquid inlet pipe 11. Then the pressure reducing valve 3 is opened to input nitrogen from the air inlet pipe 4 into the interior of the tank body 802. During the input process, the nitrogen passes through the carbon-based material turbid liquid from the ultrafiltration membrane and flows into the waste liquid collection tank 10 through the connecting pipe 5. When the carbon-based material turbid liquid passes through the ultrafiltration membrane, the carbon-based material is coated on the side of the ultrafiltration membrane that needs to be modified, thereby achieving the purpose of modifying the ultrafiltration membrane.

[0055] The above contents are merely examples and explanations of the structure of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the scope defined by the structure of the present utility model, they should all fall within the protection scope of the present utility model.

Claims

1. A coating device for coating a carbon-based material on an ultrafiltration membrane, comprising a bracket, a nitrogen bottle, an air inlet pipe, a connecting pipe, a film coating tank and a waste liquid collection tank, wherein the nitrogen bottle, the film coating tank and the waste liquid collection tank are sequentially distributed on the bracket, characterized in that: The coated tank includes an upper sealing cover, a lower sealing cover, and a tank body, wherein the upper sealing cover and the lower sealing cover are respectively installed at the upper and lower ends of the tank body, a liquid inlet pipe is installed on the top of the upper sealing cover, a stirring assembly and a support frame are provided in the tank body, the stirring assembly is installed on the upper sealing cover, and the support frame is arranged on the lower sealing cover, the two ends of the air inlet pipe are respectively connected to the nitrogen bottle and the upper sealing cover, and the end of the air inlet pipe passes through the upper sealing cover and is connected to the tank body, the two ends of the connecting pipe are respectively connected to the lower sealing cover and the waste liquid collection tank, and the end of the connecting pipe passes through the lower sealing cover and is connected to the tank body.

2. A coating device for coating a carbon-based material on an ultrafiltration membrane according to claim 1, characterized in that: A pressure reducing valve is also installed on the nitrogen cylinder, and the air inlet pipe is connected to the pressure reducing valve.

3. A coating device for coating a carbon-based material on an ultrafiltration membrane according to claim 1, characterized in that: The tank body, the upper sealing cover and the lower sealing cover are all equipped with clamping components, which are matched with the connecting pipe.

4. A coating device for coating a carbon-based material on an ultrafiltration membrane according to claim 3, characterized in that: The clamping assembly includes a mounting plate, a slot and a limiting rod on the mounting plate. The limiting rod is slidably mounted on one side wall of the slot, and a limiting hole is opened on the other side wall of the slot. The limiting rod matches the limiting hole.

5. A coating device for coating a carbon-based material on an ultrafiltration membrane according to claim 4, characterized in that: The clamping assembly also includes a spring and a limiting ring. The limiting ring is fixedly mounted on the limiting rod. The spring is sleeved on the limiting rod, and two ends of the spring are respectively mounted on a side wall of the clamping slot and the limiting ring.

6. A coating device for coating a carbon-based material on an ultrafiltration membrane according to claim 3, characterized in that: The stirring assembly includes a motor, a stirring shaft and stirring blades. The motor is fixedly mounted on the upper sealing cover. The stirring shaft is arranged inside the tank body and is fixedly connected to the output shaft of the motor. A plurality of stirring blades are provided, and the plurality of stirring blades are evenly distributed on the stirring shaft.

7. A coating device for coating a carbon-based material on an ultrafiltration membrane according to claim 3, characterized in that: The support frame comprises a support plate and a plurality of support rods, wherein the plurality of support rods are evenly distributed at the bottom of the support plate, and a plurality of through holes are evenly opened on the support plate.

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