Solution coating continuous production equipment and method for polymer ultra-thin sub-nanofiltration composite membrane filter element

Abstract

The invention provides a device and a method for continuously producing a solution coating of a polymer ultrathin sub-nanofiltration composite membrane filter cartridge. The device comprises a transmission system, a computer-controlled system, a solution spraying system and a drying system, wherein the transmission system consists of a material roller, a support coating conveyer belt and transmission rollers in a plurality of drying boxes; the material roller is connected with the support coating conveyer belt through a porous carrier layer raw material sheet; the support coating conveyer belt is connected with the transmission rollers in the drying boxes through a wet high-breathability polymer ultrathin sub-nanofiltration composite membrane sheet coated with the coating solution; a coating opening of a coating solution spraying device of the solution spraying system is arranged by facing to the upper surface of the support coating conveyer belt; the drying system comprises drying boxes with controllable temperature gradients and a preheated nitrogen purging system; a nitrogen output pipe of the preheated nitrogen purging system is communicated with nitrogen inlets of the drying boxes with controllable temperature gradients. The device and the method have the advantages of simple and convenient process, low equipment investment cost, high production efficiency and good quality of finished products.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment and chemical technology, in particular to a filter air filter with high air permeability and capable of producing anti-PM 2.5 , anti-smog, anti-virus (that is, anti-influenza, anti-SARS, anti-avian flu, etc.), anti-bacteria function, the invention discloses the manufacture of a highly breathable sub-nanometer porous polymer ultra-thin film polymer composite membrane Equipment and preparation methods. Background technique [0002] Air pollution produces smog in densely populated areas, especially in large and medium-sized cities, seriously threatening people's health and lives. The mechanism that haze weather produces is very complicated, and its chemical composition is also very complicated. These substances may cause cancer and other serious diseases. More importantly, viruses and germs can survive and reproduce on such small particles, attach to atmospheric particles, and generate ...

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Problems solved by technology

[0007] 4. Masks with charged filter materials, which have the same use restrictions as activated carbon masks

The applicant has used for reference the method of the solution coating of prior art, but, the method and equipment of solution coating in the prior art all can not be used for preparing the applicant's described highly gas permeable sub-nanometer porous polymer ultra-thin film polymer composite film

The pore size range of the highly breathable subnanoscale porous polymer ultra-thin film polymer composite membrane of the present application is 20-60 nanometers, and the thickness is 0.1-1 micron. The manufacture and production of thin films is not only very difficult, but there is no report so far

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