In the pharmaceutical industry, effluents often contain complex and even toxic components. The fully automatic self-cleaning filter can make the harmful components in the medical sewage meet the discharge standard, reduce the discharge of sewage, reduce the cost of sewage treatment, and meet the requirements of circulating water from the perspective of economy and environmental protection. With the continuous deepening of the supervision of the environmental protection department, some traditional high-pollution industries, such as pharmaceuticals and environmental protection industries, are gradually under pressure and have to undergo transformation and upgrading. This kind of filter is therefore "favored" by the market.

The self-cleaning filter is that the sewage enters from the inlet, first passes through the coarse filter to filter out the larger particles of impurities, and then reaches the fine filter. During the filtration process, the fine filter gradually accumulates dirt and impurities in the water to form a filtering impurity layer. Since the impurity layer accumulates on the inner side of the fine filter, a pressure difference is formed between the inner and outer sides of the fine filter. . When the pressure difference of the filter reaches the preset value of the stainless steel filter, the automatic cleaning process will start. During this period, the clean water supply will not stop, the cleaning valve will open, and the water pressure in the cleaning room and the suction device will drop significantly. The pressure difference of the sewage pipe produces a suction force through the suction nozzle between the sewage suction pipe and the cleaning chamber, forming a sewage suction process.

There are many things that must be paid attention to in the production of pharmaceuticals. The installation of self-cleaning filters is particularly important in the production process, and it is also necessary for pharmaceutical production. The use of self-cleaning filters in the pharmaceutical manufacturing process can reduce pharmaceutical contamination and efficiently generate biological and abiotic particles. This is a major breakthrough in drug production, which can ensure the safety of drug production and allow patients to use drugs with confidence.