Automatic Backwash Disc Filter

Description

Automatic Backwash Disc Filter is composed of a filter shell and a filter element; the material of the filter shell is generally plastic, or stainless steel, or plastic-coated carbon steel. And there are many shapes, the shape of the filter element is a hollow cylinder composed of many annular plastic sheets with micron-sized regular triangular grooves on both sides assembled on the central skeleton. The discs in each filter unit are compressed by springs and water pressure to form countless filters that impurities cannot pass through, and the total thickness is equivalent to 30 layers of ordinary filters.

Working principle

Automatic Backwash Disc Filter has electronic controls that control all steps of backwashing using time intervals and pressure differentials. Once set up, it can be used for a long time. The automatic backwash filter completes the entire automatic backwash process in seconds without interrupting work.

The backwash is automatically started by the set time or differential pressure signal, the backwash valve changes the direction of water flow in the filter unit, the spring on the filter element is pushed open by the water pressure, and all the discs and the small pores between the discs are loosened. The nozzle located in the center of the filter element sprays water in the tangential direction to make the disc rotate. Under the action of the water flow and the centrifugal force of the high-speed rotation of the disc, the objects trapped on the disc are washed out, so it can be achieved with a small amount of self-use water. Very good cleaning effect. Then the backwash valve returns to the filter position, and the spring on the filter element presses the disc again to return to the filter state. The backwash water is the filtered water of the system.

Features

  • Fully automatically continuous on-line self cleaning; low water consumption; Low pressure loss.
  • Optimizes the performance and minimizes the frequency of maintenance.
  • Maximum saving of water with efficiency in backwashing.
  • Modular configuration allows design according to customer preference or space availability.

Technical Parameters

  • Working pressure: 2-8 bar
  • Backwashing pressure: 1.8-8 bar
  • Working temperature: <60°C 
  • PH value: 4-13
  • The filtering module (A) number: 2-10 
  • Filter precision (um)：5、20、50、80、100、120、150、200

Application

Circulating cooling water filtration, nozzle and heat exchanger water filtration, ultra-filtration and micro-filtration pre-treatment, softened water system application, seawater filtration, wastewater filtration, general water filtration, water treatment industry, recycling water filtration.

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Grace

Email:grace@filtrationchina.com

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