The AFE model electric external scraping self-cleaning filter (referred to as AFE filter) produced by Shanghai Jiucheng is a new scraper-type self-cleaning filter developed by Shanghai Jiucheng Company. The AFE filter automatically removes the filter element by mechanical scraping. Impurities on the outer surface can be continuously filtered online. The AFE filter is mainly designed for high-viscosity filtration, with a viscosity of up to 800,000mPa.s and an accuracy range of 30-1500 microns. It can effectively strip impurities from the surface of the filter element, thereby effectively removing impurities, suitable for filtering water and various viscous liquids . The AFE filter complies with the flow quality.

Traditional filters will frequently block when filtering viscous materials and soft impurities. Only large filters or frequent manual cleaning can be selected, which requires a large investment, heavy work, and serious material waste. The AFE filter easily solves these problems with advanced self-cleaning methods. It always keeps the filter element clean regularly and discharges waste liquid containing high concentrations of impurities, reducing material waste, and filtering poor water quality water and adhesives, resins, polymers, etc. Obvious advantages and higher efficiency when sticky materials such as grease are used. With its significant technical advantages and low operating costs, AFE filters have gradually replaced traditional manual filters in many fields, such as vibrating screens, bag filters, basket filters, and some backflush filters.

Shanghai Jiucheng Company has a full range of scraper-type self-cleaning filter products. There are 4 models, AFE series, motor-driven outer scraper, AFC series cylinder driven inner scraper, AFM series motor driven inner scraper, AFB series motor driven The scraper type is suitable for different working conditions and can meet the customers' various mechanical self-cleaning and filtration requirements.

working principle

[Filtering status]

The liquid flows in from the inlet, and the spring strip scraper closes to the outer surface of the filter element in a tangential manner. The liquid flows inward from the outer surface of the filter element through the filter screen, the impurities are trapped on the outer surface, and the liquid flows out from the outlet; as time goes by, The impurities gradually increase and the pressure difference rises. The filter element is cleaned according to the set pressure difference or regularly. (Shanghai Jiucheng automatic self-cleaning filter)

[Cleaning status]

The motor drives the scraper to perform a horizontal rotation to clean the filter element. When the scraper rotates, the impurities are scraped (peeled off) by the scraper and flow along the filter screen to the bottom of the filter, and the impurities are deposited in the dirt collection chamber. Each cleaning consists of several strokes. After the surface of the filter element is cleaned, the filtering capacity is restored. Normally filter during cleaning without interruption of flow.

[Sewage status]

After multiple cleaning cycles, impurities accumulate to a certain amount, and the drain valve is opened regularly to discharge the waste liquid containing high-concentration impurities. If necessary, it can also be recycled.

Technical features and advantages

■Horizontal rotary scraping, scraping off impurities directly, good at filtering viscous liquids and removing viscous suspended impurities;

■ Simple structure, easy to disassemble and assemble, after removing the scraper, the filter element can be easily taken out, and the inside is easy to clean;

■ Fully automatic operation, continuous online filtration, and stop the heavy filter element replacement and cleaning work;

■ No disposable filtering consumables are generated, saving consumables costs and environmental protection costs;

■ The filtration pressure loss is extremely small, the flow rate is stable, energy consumption is saved, and the process is continuous and stable;

■ Airtight filtration to prevent leakage of hazardous materials, which is beneficial to ensure production and employee health;

■ The discharged waste liquid has a high impurity concentration and can be recycled, reducing the loss of high-value materials;

■ A variety of high control systems are optional, powerful, high-energy operation, high reliability;

■ Choose components from world-renowned brands, with high reliability and low operating costs. (Shanghai Jiucheng Industrial Automatic Self-cleaning Filter)