Automatic backwash filters are widely used in metallurgy, chemical, petroleum, and electric power fields. Such as the filtration of industrial wastewater and circulating water, it is an advanced, highly effective and easy-to-operate automatic filtration device.

The filter is mainly composed of carbon steel or stainless steel cylinder, special structure stainless steel tapered filter screen, water flow guide valve, differential pressure controller, electric control box and sewage device. When the filter is working, the water flow guide valve is in an open state, and the water flow enters the filter from the inlet, and flows into the outlet after being filtered by the filter.

The filter adopts differential pressure control and positioning control to automatically clean the filter screen. When the differential pressure between the inlet and outlet of the filter reaches the set value or the timer reaches the preset time, the electric control box sends a signal, the drain valve opens (the water flow guide valve is in the open state), and the water flow flushes the impurities stuck on the inner wall of the filter screen. When the water flow guide valve is fully closed, the water flow is forced to enter the outside of the filter from the mesh of the filter inlet section, most of the net liquid flows out from the outlet, and a part of the net liquid enters the inside of the filter from the outside of the filter (because The system will be in a state of depressurization, the internal pressure of the filter is lower than the outside pressure), so that the filter is backwashed. The special structure of the stainless steel tapered filter creates a spray effect inside the filter, and any magazines are removed from the smooth inner wall. Rush away.

When the pressure difference between the inlet and outlet of the filter returns to normal or the time set by the timer expires, the electric drain valve is closed and the water flow guide valve is opened. The entire flushing process system can work normally without stopping the machine.

Shanghai Jiucheng Industrial Technology Co., Ltd. is a filter equipment manufacturer integrating R&D, production and sales. The company has a group of teams dedicated to the filtration business, and engineers strictly control design, production, inspection, and after-sales. Quality, service awareness and detail-oriented manufacturing spirit have penetrated into every aspect of the enterprise.

Shanghai Jiucheng's filtration products are widely used in petrochemicals, environmental protection water treatment, papermaking, electronics, semiconductors, pharmaceuticals, paints, food and beverages, automobiles and accessories, metal processing, resins, coal chemicals and many other industries.