What is the filter press used?


Release time:

Apr 14,2023

Filter press: is a batch operation of filtration equipment, mainly used for solid-liquid separation. The material through the pressure to filter, and widely used in chemical, pharmaceutical fields. Especially for the separation of fine slime, it has its unique advantages. Suitable for solid-liquid separation of various suspensions. Simple structure, easy to use, widely used in petroleum, chemical, metallurgy, pharmaceutical, sugar, mineral processing, food and sewage treatment and other industrial and mining enterprises. In general, the filter press has a wide range of applications, but the structure is relatively simple. It is mainly the pressing and pulling of the plate and the frame, and the slag unloading and cleaning of the filter cloth can be fully automated, which is very conducive to the large-scale development of the filter press and has a good prospect. The filter press is composed of many filter plates and filter frames superimposed to form a filter chamber, which uses pressure as the driving force for filtration. Filter press It is an intermittent operation machine, divided into plate and frame filter press, chamber filter press and vertical filter press.

What is the 1. filter press used?
Filter press: is a batch operation of filtration equipment, mainly used for solid-liquid separation. The material through the pressure to filter, and widely used in chemical, pharmaceutical fields. Especially for the separation of fine slime, it has its unique advantages. Suitable for solid-liquid separation of various suspensions. Simple structure, easy to use, widely used in petroleum, chemical, metallurgy, pharmaceutical, sugar, mineral processing, food and sewage treatment and other industrial and mining enterprises.
In general, the filter press has a wide range of applications, but the structure is relatively simple. It is mainly the pressing and pulling of the plate and the frame, and the slag unloading and cleaning of the filter cloth can be fully automated, which is very conducive to the large-scale development of the filter press and has a good prospect. The filter press is composed of many filter plates and filter frames superimposed to form a filter chamber, which uses pressure as the driving force for filtration. Filter press It is an intermittent operation machine, divided into plate and frame filter press, chamber filter press and vertical filter press.
What is the filter press used for?_How many types are there?
What are the types and models of 2. filter presses?
According to the size of the frame, there are nine series of 250mm, 320mm, 450mm, 630mm, 800mm, 1000mm, 1250mm, 1600mm and 2000mm.
According to the filtration area, there are 0.5 square meters to 1150 square meters.
According to the style, there are plate and frame type, diaphragm press type, box type, etc.
According to the material to be divided into cast iron, aluminum alloy, stainless steel, ceramics, cast steel, rubber and reinforced polypropylene (plastic) and so on.
According to the transmission mode, there are manual, electric, jack, hydraulic, automatic pressure, automatic and so on.

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What are the types and types of 3. filter presses?

1. Model and type of filter press-vertical filter press
The filter plates are stacked horizontally and up and down to form a group of filter chambers with a small footprint. It uses a continuous filter belt. After filtering, the filter belt is moved to unload slag and clean the filter belt, and the operation is automatic. After an elastic rubber diaphragm is added to the filter chamber, the filter residue can be compressed by high-pressure water or compressed air with the help of the rubber diaphragm at the end of filtration, so that the filter residue is further squeezed and discharged, forming a diaphragm with variable filter chamber volume and compressed filter residue. The pressure of the vertical filter press can reach 1~2 MPa. The product has a wide range of applications, but the structure is relatively simple. It is mainly the pressing and pulling of the plate and the frame, and the slag unloading and filter cloth cleaning can be fully automated, which is very conducive to the development of large-scale and has a good prospect.
2. Model and type of filter press-plate and frame filter press
A set of filter chambers is formed by alternately arranged filter plates and filter frames. The surface of the filter plate has grooves, and the protruding parts thereof are used to support the filter cloth. The filter frame and the filter plate have through holes at the corners, which form a complete channel after assembly, which can pass into the suspension, washing water and filtrate. Each side of the plate frame has handles supported on the beam, and the filter cloth between the filter plate and the plate frame is pressed by the pressing device to act as a sealing gasket. The suspension is pressed into the filter chamber by a feed pump to form a filter residue on the filter cloth until the filter chamber is filled. The filtrate passes through the filter cloth and flows to the corner channel of the plate frame along the groove of the filter plate, and is discharged centrally. After filtration, clean washing water can be passed to wash the filter residue. After washing, compressed air is sometimes introduced to remove the remaining washing liquid. Then open the filter press to remove the filter residue, clean the filter cloth, re-press the plate and frame, and start the next working cycle.
Plate and frame filter press can be applied to suspensions with large or nearly incompressible filter residue. The solid particle concentration of the suitable suspension is generally less than 10%, and the operating pressure is generally 0.3-0.6 MPa, especially up to 3 MPa or higher. The filtration area can be increased or decreased with the number of plates and frames used. The plate frame is usually square, the inner side length of the filter frame is 320-2000mm, the frame thickness is 16-80mm, and the filter area is 1-1200 m2. The plate and the frame are compacted by manual screw, electric screw and hydraulic pressure. The plates and frames are made of wood, cast iron, cast steel, stainless steel, polypropylene and rubber.
3. Model and type of filter press-van filter press
The structure and working principle of the box-type filter press are similar to those of the plate-and-frame filter press. The difference is that the two sides of the filter plate are recessed, and every two filter plates are combined into a box-shaped filter chamber, eliminating the filter frame and the middle of the filter plate. There is a round hole. The suspension thus flows into each filter chamber. This filter is suitable for suspensions that need to be filtered at higher pressures and the filter residue does not need to be washed.