The small mechanical filter press forms a special and complete filter channel

  Except that the filter chamber is a little special, the rest can generally work normally, except that the filter chamber is organically arranged by a separate filter plate and filter cloth
At the same time, it must form a filter chamber under sufficient pressure and form a closed space that can bear constant reaction force
The filter chamber of the box filter press is composed of a flat filter plate and a hollow filter frame
The filter cloth fixed on the plate frame is the main form of early filter press
The filter chamber of the van filter press is composed of two adjacent concave filter plates
The main advantage is that it is convenient to replace the filter cloth, but the disadvantage is low efficiency, poor filtering effect and easy to damage the filter plate
The filter plate and filter frame of the plate frame filter press are arranged alternately to form a group of filter chambers
The surface of the filter plate is provided with a groove, and the protruding part is used to support the filter cloth
There are through holes at the corners of the filter frame and filter plate
After assembly, a complete channel can be formed to introduce suspension, washing water and filtrate
Sludge filter press plate and frame filter press is suitable for suspension with high compressibility of filter residue or almost incompressible
The solid particle concentration of suitable suspension is generally less than 10%, and the operating pressure is generally 0
3 ~ 0
6MPa, especially 3Mpa or higher
If the formation mechanism of the filter chamber cannot bear the reaction force of the filter liquid, a large number of filtrates will naturally leak out from the gap, and all filtrates will flow out through the filter cloth, but the liquid without the filter cloth will not separate the solid and liquid naturally
Therefore, the basic function of the box filter press cannot be realized, let alone the operation of the equipment
Therefore, the necessary condition for the operation of box filter press equipment is to realize the sealing of filter chamber Filter press is a kind of mechanical equipment that uses special filter media to exert constant pressure on the object to dialysis the liquid
It is a commonly used solid-liquid separation equipment
Widely used in chemical, pharmaceutical, metallurgy, dyes, food, brewing, ceramics, environmental protection and other industries
In addition to the need for a closed filter structure, a pressure difference is formed on both sides of the filter cloth
When the filtrate is in an environment with pressure difference, it is naturally popular from high-pressure environment to low-pressure environment due to the nature of the liquid, which provides moving power relative to the liquid
In this way, under the special function of the filter cloth, the real liquid can pass through the filter cloth and filter out, and the solid that cannot pass through the filter cloth is naturally intercepted on the other side of the filter cloth
If the pressure difference cannot be formed on both sides of the filter cloth, even if the filtrate contacts the filter cloth, it will produce filtration and separation benefits every time
Therefore, the pressure difference is a necessary condition for equipment operation
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