A nanofiltration membrane preparation device and production process

A technology for preparing a device and a nanofiltration membrane, which is applied in the field of nanofiltration membrane preparation devices with adjustable thickness, can solve the problems of large coating thickness, small coating thickness, and pockmarked surface of the coating layer, so as to avoid hemp. Surface and pits, ensure the effect of flatness and uniform thickness
CN109731475BActive Publication Date: 2021-12-14JIANGSU QIXING FLUID EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU QIXING FLUID EQUIP CO LTD
Publication Date
2021-12-14

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Abstract

The invention provides a nanofiltration membrane preparation device and production process. The preparation device includes a horizontal workbench, a base, a casting liquid delivery pump, a hydraulic control valve, a casting liquid container, a casting liquid delivery pipe, and a casting liquid spraying pump. cavity, base plate, casting solution booster chamber, casting solution booster pipe, booster regulating valve and booster pump, casting solution spraying chambers are arranged symmetrically on both sides of the base, casting solution booster chamber is set on the base, and is located on both sides of the casting film In the middle of the liquid spraying chamber, the casting liquid spraying chambers and the casting liquid booster chambers on both sides are arranged in parallel, and the substrates are stacked between the casting liquid spraying chambers and the casting liquid booster chambers. A gap with a certain thickness is formed between them by a thickness adjusting device. The present invention uses the stacking with standard thickness gaps as the reaction chamber of the casting solution to ensure that the produced nanofiltration membrane has extremely high flatness, avoids problems such as pockmarks and pits, and accurately measures the nanofiltration membrane through the thickness adjustment device. The thickness of the filter membrane, and ensure that the thickness of the nanofiltration membrane is uniform.
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Description

technical field

[0001] This patent relates to the technical field of nanofiltration membrane preparation, in particular to a nanofiltration membrane preparation device and production process with adjustable thickness. Background technique

[0002] With the rapid development of science and technology, consumers' requirements for quality of life are constantly improving, especially in the field of daily life. The quality and safety of drinking water are more and more concerned by consumers. There are various water purification equipment on the market. Into thousands of households, and nanofiltration membrane filter element plays a vital role in filtering water quality, the production quality of nanofiltration membrane directly affects the removal of organic matter, pigments and some dissolved salts in water, and nanofiltration membrane The flatness and thickness of the nanofiltration membrane directly affect the water treatment effect of the nanofiltration membrane. Therefore,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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