Flat plate filter

The flat plate filter is a common filtration device. The following will provide a detailed introduction from aspects such as its classification, structure and principle, features, and application scenarios:
Classification
Classify by the filtering object
Flat plate filters for air filtration: such as flat plate primary filters, are mainly used to filter out large particle pollutants like dust and hair in the air, providing pre-protection for subsequent medium and high-efficiency filtration.
Flat plate filters for liquid filtration: including stainless steel flat plate filters, etc., are used for clarification filtration and sterilization filtration of laboratory solutions, liquids in the pharmaceutical industry, liquids in the food and beverage industry, etc.
Classified by material
Metal flat plate filters: Common ones are made of 304 stainless steel and 316L stainless steel. They feature strong corrosion resistance and durability and are suitable for filtering various chemical substances and solvents.
Non-metallic flat plate filters: Filters made of materials such as plastic have the advantages of lightweight and low cost, and are often used in some occasions where the requirements for corrosion resistance are not high.
Structure and Principle
Structure
Flat plate filter for air filtration: It is usually composed of an outer frame, filter material, and protective net. The outer frame is generally made of a sturdy plate-type aluminum alloy frame, and there are also galvanized iron frames and other materials. The air outlet surface is equipped with a diamond-shaped protective net, and the filter material is made of high-quality polyester synthetic fiber, glass fiber, etc.
Flat plate primary filter for industrial equipment
Flat plate filters for liquid filtration: Taking stainless steel flat plate filters as an example, they are primarily composed of stainless steel filter membrane flat plates, peristaltic pumps, and pump tubes. They can be used in combination with filter membranes of different diameters.
Stainless steel flat plate filter for industrial equipment
Principle
Air filtration: By taking advantage of the fibrous structure of the filter material, when air passes through the filter material, dust, and other particles are intercepted and adsorbed on the fibers, thereby achieving air purification and filtration.
Liquid filtration: The liquid to be filtered is delivered into the filter by a peristaltic pump. Under pressure, the liquid passes through the filter membrane, while solid particles, bacteria, etc. are retained by the membrane. The filtrate is discharged from the liquid outlet at the bottom of the filter, achieving the purpose of solid-liquid separation.
Characteristics
Flat plate filter for air filtration
Economical and practical: The filter material can be cleaned and reused multiple times, has a long service life, and effectively reduces usage costs.
Large dust holding capacity: The fluffy and gradually denser fiber structure ensures a high dust collection rate and a large dust holding capacity, which can extend the service life of the medium-efficiency filter at the back end.
Easy installation: The lightweight plate structure makes installation and replacement relatively convenient.
Flat plate filter for liquid filtration
High filtration efficiency: It can be paired with larger-diameter filtration membranes, providing a larger filtration area and significantly enhancing filtration efficiency.
Easy operation: It can be used in conjunction with peristaltic pumps of various brands, and the filter structure is simple and easy to operate.
Strong applicability: Made of high-quality stainless steel, it features a high surface finish and strong corrosion resistance, making it suitable for the filtration of various liquids.
Application scenarios
Flat plate filters for air filtration: Widely used in the ventilation and air conditioning systems of large civil buildings such as office buildings, conference rooms, hospitals, shopping malls, and airports, as well as in the pre-filtration of centralized ventilation and air conditioning systems in ordinary industrial plants or clean rooms.
Flat plate filter for liquid filtration: Commonly used for clarification filtration and sterilization filtration of laboratory solutions, such as cell culture media, vitamins, eye drops, etc. It is also applicable to the clarification and sterilization filtration of liquids in small pharmaceutical factories and the food and beverage industry.