What are the maintenance methods of the filter press

The filter press uses a kind of filter medium, the pressure applied to the object, so that the liquid dialysis out of a mechanical equipment, is a commonly used solid-liquid separation equipment
.

In the early 18th century, it was applied to chemical production, and is still widely used in chemical, metallurgical, dye, food, brewing, ceramics and other industries
.

The filter plate has stable performance, convenient operation and labor saving; The metal cylinder is processed by seamless steel pipe, plastic steel filter plate precision casting molding, high pressure, durable
.

Maintenance matters 1, debugging the normal filter press can be fed work, before each shift of work to make a comprehensive inspection
of the whole machine.

Mechanically pressed transmission components and gearboxes must be filled with lubricating oil; Hydraulic pressure to check the oil storage capacity of the tank and the working pressure of the hydraulic station, the hydraulic oil is generally replaced once a year, the hydraulic system should be replaced when it is replaced - a comprehensive cleaning, the working pressure of the hydraulic station is less than the high working pressure of the cylinder, but the small can not be lower than the allowable value of the filter pressure, too small will cause large leakage, too large damage to the parts
.

2.
It is forbidden to start the factory in the case of less than the specified number of filter plates, so as not to damage the machine parts
.

Check the arrangement of the filter plate before feeding, and the filter cloth cannot be folded to prevent large leakage; After the cake is unloaded, the filter plates should be arranged neatly
next to the pressure.

3, to be normal after the compact filter plate pressurized filtration, filter pressure and filtration temperature must be within the specified range, filtration pressure is too high will cause leakage, filtration temperature is too high plastic filter plate is easy to deform, when adding suspension to be uniform
concentration.

There must be no confluence; After the cake is unloaded, the filter cloth and filter plate must be rinsed clean, and the residue is not allowed to be pasted in the sealing surface or the feeding channel, otherwise it will affect the smooth feeding and the sealing of the filter plate, so that the pressure on both sides of the filter plate is unbalanced, resulting in deformation and damage
to the filter plate.

4, the choice of filter cloth to meet the filter technology requirements of the filter paddle, the new filter cloth should be shrunk before making, the diameter of the hole should be smaller than the pore diameter of the filter plate, the distribution hole and the plate hole should be relatively concentric when supporting the filter plate, the feed hole cloth should be close to the cylinder wall, otherwise it will cause that the filter is not clear, the filtration rate is low, the cloth cylinder is broken, and the expected filter purpose cannot be achieved
.

5.
In the early stage of filter press, the filter is more turbid, and when a layer of filter cake is formed on the filter cloth, the filtrate will become clear
.

If the filtrate has been turbid or cleared, it may be that the filter cloth is broken or the cloth hole is deviated from the plate hole, and the valve should be closed or the feed should be stopped to replace the filter cloth
.

A small amount of leakage caused by the capillary phenomenon of the filter cloth is allowed
between the filter plates.