Self-cleaning Filter

It is a fully automatic precision equipment that uses stainless steel filter screens to directly intercept impurities in water, purifying water quality and protecting other system equipment. Adopting intelligent (PLC/PAC) design, the system can automatically identify the degree of sludge deposition and automatically discharge sewage by sending a differential pressure signal. It is suitable for water treatment, petrochemical, metallurgical, electric power, fine chemical, coating, ink, paper making, food and beverage, pharmaceutical, metal processing and other industries, effectively removing suspended solids, particulate matter, water scale, algae, rust and other contaminants in water.

The water to be treated enters the body through the water inlet, and impurities in the water are deposited on the stainless steel wedge-shaped screen, creating a pressure difference between the inlet and outlet. The differential pressure switch monitors this pressure change. When the pressure difference reaches the set value, the controller sends signals to the control valve and the drive motor. The motor drives the scraper to rotate to clean the filter element, while the control valve opens to discharge sewage. The entire cleaning process only lasts dozens of seconds. After cleaning is completed, the control valve is closed, the motor stops rotating, and the system returns to its initial state to start the next filtration process, realizing continuous operation without flow interruption.

• Simple design and structure, easy to install and maintain.

• Short backwashing time, large flow rate, and low pressure loss.

• Multiple self-cleaning control modes, including differential pressure, time and manual operation.

• Connectable to DCS system for remote monitoring and control.

• High-precision filtration with stable effluent quality, and low sewage/water consumption.

• High-efficiency internal scraper system: Adopts stainless steel rotating shaft with four PTFE scrapers, which closely fit the filter screen and filter element, achieving excellent scraping effect; the filter screen has high permeability, and is wear-resistant and high-temperature resistant, ensuring stable filtration performance.

• Intelligent control system: PLC/PAC control enables automatic identification of sludge deposition, supporting multiple operation modes to meet different working conditions, and can be integrated with DCS system for intelligent management.

• Stable and reliable performance: High-precision filter elements ensure stable effluent quality, and the low pressure loss design reduces energy consumption; the permanent filter screen avoids frequent replacement, lowering maintenance workload and cost.

• Compact and durable structure: The equipment has a compact layout, small footprint, and sturdy structure, suitable for various industrial environments, with strong continuous operation capability.

• Water treatment industry: Industrial circulating water purification, raw water pretreatment and sewage advanced treatment.

• Petrochemical industry: Water purification for petrochemical production processes, protecting downstream equipment from impurity damage.

• Metallurgical and electric power industry: Cooling water purification for metallurgical furnaces and power generation units, preventing scale and corrosion.

• Fine chemical, coating and ink industry: Filtration of raw material liquids and finished products to ensure product quality.