Multi-column self-cleaning filter

  In water treatment and filtration systems, multi-column self-cleaning filters have become an important component. This type of filter intercepts impurities in the water body, removes suspended solids and particulate matter, greatly reduces turbidity, purifies the water quality, and effectively reduces the generation of system dirt, bacteria, algae, rust, etc., ensuring the purity and reliability of the filtered liquid.

The working principle of the multi-column self-cleaning filter mainly involves the following steps:

  Filtration stage: In this stage, the filtered liquid enters the filter from the inlet and enters the filter screen through the lower fixed plate. The interior of the filter can be divided into a metal braided mesh and a wedge-shaped mesh. The metal braided mesh is composed of multiple layers of mesh. The liquid flows from the inside of the filter screen to the outside, and the impurities are intercepted in the filter column. The filtered liquid finally flows out of the filter from the outlet of the filter cartridge.

  Cleaning phase: The cleaning phase is usually started when the pressure difference between the inlet and outlet increases to the set value due to the accumulation of impurities in the filter, or when the preset scheduled cleaning time is reached. In the cleaning stage, the driving device drives the cleaning arm to rotate so that the suction nozzle of the cleaning arm corresponds to the lower port of the filter column one by one, and the impact of negative pressure water flow is used to clean the impurities in the filter column.

  Impurity discharge stage: The impurities and wastewater generated during the cleaning process will be discharged from the sewage outlet, and the filter can still maintain continuous water flow output during the entire cleaning and sewage discharge process.

  Through excellent automatic control design, the multi-column self-cleaning filter can not only maintain high filtration efficiency, but also achieve self-cleaning and impurity discharge, greatly reducing the workload of manual maintenance and cleaning. At the same time, it is suitable for filtration of various liquids and is widely used in metallurgy, chemical industry, power generation and other industries.

Multi-column self-cleaning filters have the following significant advantages:

  Efficient cleaning effect: The widely recognized advantage of multi-column self-cleaning filters is its excellent cleaning effect. It can clean itself with clean water filtered by itself to ensure filtration accuracy and equipment efficiency.

  Powerful treatment flow: Due to the joint action of multiple filter columns, this type of filter has powerful treatment flow and can adapt to large-scale water treatment needs.

  High-precision filtration capacity: Due to the use of complex filter mesh structures such as metal braided mesh and wedge-shaped mesh, the filter has high filtration accuracy and can effectively intercept small impurities.

  Continuous water supply function: Even during the process of self-cleaning and backwashing of the equipment, the filter can maintain continuous water output, ensuring the continuous operation of the water treatment system.

  Versatility and adaptability: This equipment is scientifically designed and can work stably in various harsh environments, such as high temperature exposure, wind and rain, cold weather, etc. And it has a wide range of applications. It can not only filter out mechanical impurities in water, but also reduce turbidity, purify water quality, and reduce the generation of system dirt, bacteria, algae, rust, etc.

  Reasonable operating costs: In addition to the purchase cost of hardware equipment, its operating costs are also quite reasonable. The water consumption of multi-column self-cleaning filters during cleaning and discharge is generally no more than 1% of the total flow.

  In general, multi-column self-cleaning filters have become the preferred high-efficiency filtration equipment in many industries due to their efficient, powerful and reliable performance.

The multi-column self-cleaning filter mainly consists of the following parts:

  Tank body: The tank body is divided into two areas: the upper part is the clear water area and the lower part is the muddy water area. The two are separated from each other, forming independent areas for filtration and cleaning.

  Filter column: Inside the tank, several stainless steel filter columns are installed on the diaphragm. The filter column is a key part of the filter and is the decisive factor in the filtration accuracy.

  Backwash structure: The backwash structure is the core of the self-cleaning filter. It can automatically start the backwash process to clean the filter element after the pressure difference increases due to the accumulation of impurities in the filter element.

  Reducer: The reducer is used to drive the working process of the filter to achieve a working speed suitable for system requirements.

  Electric valve: The electric valve plays the role of controlling flow and switching channels. It is driven by electricity to realize automatic opening and closing of the valve.

  Differential pressure controller: The differential pressure controller can monitor the pressure difference before and after the filter. When the pressure difference reaches the set value, it will start the cleaning program to self-clean the filter column.

  Electric control box: The electric control box is the center for controlling the operation of the entire system. It controls various components according to input signals to ensure the normal operation of the filtration system.

  These structures together form a multi-column self-cleaning filter, making it a fully automatic filtration device that is easy to operate. Each component fully embodies the system's technological content and humanized design, providing a comprehensive solution to users' water filtration needs.

Multi-column self-cleaning filters are widely used in many industries and application scenarios due to their excellent filtration effect and self-cleaning ability.

  Metallurgical industry: For example, in steel plants, it can purify the turbid water produced by hot rolling and continuous casting, and has a good filtering effect in the side filtering treatment in the clean circulation system.

  Chemical industry: In the production process of various chemicals, a large amount of impurities are often produced. Multi-column self-cleaning filters can be used to clean these impurities to ensure the normal production process.

  Power plants: Some power plants, such as thermal power plants, cooling water systems or boiler water supply systems of thermal power plants, require filters to filter out impurities to ensure the operating efficiency of the system.

  Water treatment system: such as sewage treatment station, used to filter mechanical impurities in water, remove suspended matter and particulate matter from water, reduce turbidity, and purify water quality.

  Industrial circulating cooling water system: In order to prevent impurities in the water source from entering the equipment and prevent the equipment pipelines from being blocked, a multi-column self-cleaning filter is required.

  In general, multi-column self-cleaning filters have played an important role in metallurgy, chemical industry, power generation, water treatment and other fields. Its self-cleaning function allows the equipment to reduce the frequency of manual cleaning while maintaining high-efficiency filtration performance, greatly optimizing work efficiency.