What is a cascading filter? What are its functions and advantages? How should it be installed?
share to:20-06-29

  The laminated filter consists of two kinds of heat preservation filter and normal temperature filter. The heat preservation filter is suitable for the problem of low liquid temperature and crystallization and slow flow rate in the filtration of pharmaceuticals and fine chemicals. This machine can be heated by steam hot water or electric heating pipes. However, the horizontal plate and frame filter cannot be insulated and filtered, and cannot solve the problem of low temperature and crystallization.

  What is a cascading filter? What are its effects and advantages? How should it be equipped?

  Stacked filters are widely used in pharmaceutical, chemical, food, beverage, water treatment, brewing, ink, petroleum, printing and dyeing, environmental protection and other occupations. They are ideal equipment for filtering, clarifying, and purifying various liquids. The use of polypropylene high-quality materials, corrosion-resistant, durable, especially when stainless steel is more expensive, the use of polypropylene greatly reduces the cost. This machine is equipped with microporous membranes according to different filter media and production processes to achieve the intent of sterilization treatment. It can also reduce or add filtration layers according to the size of the filtration volume to make it suitable for production requirements. The sealing parts of this machine are made of medical silicon rubber or fluorine rubber, which has no leakage and good sealing function.

  The stacked filter has a large filtering area, small volume, small footprint, and small space. This machine has double-screen filtering, which ensures a large filtering surface, light weight and convenient operation. The horizontal plate and frame filter area can also be made larger, it is large in size, heavy in weight, and inconvenient to operate.

  The laminated filter also has a unique system of recoil equipment and heat preservation and heating equipment, (mainly blocking the filter membrane and replacing the filter membrane in the filtration), which extends the working time and increases the cost of consumables and plans the recoil equipment and Heat preservation and heating system, this machine is also specially equipped with a set of special microporous membrane with recoil equipment and heat preservation and heating). It is mainly used in chemical, pharmaceutical and other occupations. The liquid temperature is low and crystallized in the filtration and some liquids are at low temperature. The problem of difficult filtration due to viscosity is solved, and it is a new type of filtration equipment that is more advanced in the market.

  Stacked filters are used to eliminate impurities in the medium to maintain the normal operation of valves and equipment.

  1. The effect of stacked filters:

  (1) Suction filter: The filter is installed on the suction pipe of the pump to filter out the residual pollutants in the oil tank and the pollutants that enter through the air holes, which has the effect of maintaining the pump. Therefore, it is not a filter that controls the pollution concentration of the system.

  (2) High-pressure pipeline filter (A): It is installed on the outlet pipeline of the pump, which has the effect of maintaining the pollutants from entering the system. Therefore, the pollutant concentration of the system can be controlled. However, because it is a high-pressure main line, it is subject to the pulsation and pressure impact of the pump, so the raw material and strength of the filter element must be carefully considered.

  (3) High-pressure pipeline filter (B): In the system, in order to maintain the hydraulic parts that are particularly sensitive to pollution, this filter, also known as the terminal filter, is installed. Therefore, it tends to have a smaller filtration particle size than other filters. Therefore, you should choose a large-capacity one when using it. The strength of other raw materials for the components is the same as (A), which should be fully considered.

  (4) Backflow filter: It is installed on the oil return pipeline of the system, and its effect is to capture the pollutants that occur or invade in the system before returning to the oil tank. Therefore, it is a useful and important filter for controlling the pollution concentration of the system. Although it is a low-pressure pipeline, it will also show pulsation or pressure shock depending on the operating conditions of the transmission equipment, so the raw materials and strength of the components must be fully considered. Imported pump

  (5) Circulation filter: It is located on the oil return path of the fuel tank cycle. The system has a large capacity, so it is often selected when strict cleanliness is required. Even if the system is not in operation, it can capture pollutants in the fuel tank. Therefore, the efficiency of reducing the pollution concentration is good. Other equipment is equipped with a cooler, which has the advantages of being able to perform cooling together and simple repairs. However, special pumps and motors are required, and the cost is high.

  (6) Air filter: It is installed on the fuel tank to prevent pollutants from being mixed into the fuel tank with air due to changes in the fuel volume of the fuel tank. Therefore, the filtration accuracy must have the same function as that of the bag filter, and the capacity must be reserved enough to prevent the internal pressure of the fuel tank from becoming negative due to the clogging of the hole, causing the cavitation of the pump. Pay special attention when the surrounding environment is bad.

  2. The orientation of stacked filter equipment:

  (1) In general low-pressure equipment with a pressure below 140kg/cm2, it is common to only equip suction filters, but return filters and air filters should also be equipped.

  (2) In general medium and high-pressure liquid equipment with a pressure above 140kg/cm2, a return filter is generally used to control the pollution concentration. However, when there are special requirements for reliability, a high-pressure pipeline filter should be used together.

  (3) In order to increase the reliability of electromagnetic share control valve or fine flow control valve, a terminal filter should be installed.

  (4) When using the servo valve, try to reduce the pollution concentration of the system. Therefore, high-pressure and return filters should be used together; when the capacity is large, a circulating filter should be installed, and a terminal filter should be installed on the auxiliary pipeline.


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