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Table of failure phenomena and treatment methods of vertical filter press
Vertical filter press is a kind of intermittent pressure filter equipment, used for the solid-liquid separation of various suspensions, with good separation effect, easy to use, suitable for large-scale filtration industries, requiring high automation or centralized control, filtration Filter area with pressure around 0.6Mpa. The whole machine adopts the integrated design and manufacture of machine, electricity and liquid, which can realize the processes of automatic compaction, filtration, flow through, squeezing, loosening, and pulling plate. It has a high degree of automation, large production capacity, and low liquid content in the filter cake. , High unit output, small area. It is widely used in various fields that require solid-liquid separation, such as petroleum, chemical industry, dyes, metallurgy, pharmaceuticals, food, papermaking, coal washing and sewage treatment.
When the filter press is debugged normally, it can be fed into work, and the whole machine must be inspected comprehensively before each shift. The mechanical compression transmission parts and the reduction box must be filled with enough lubricating oil. Recheck the oil tank storage capacity and hydraulic station working pressure for hydraulic compression. The hydraulic oil is generally replaced once a year. The pressure system should be thoroughly cleaned when replacing. The working pressure of the hydraulic station is less than the rated working pressure of the cylinder, but not less than the allowable value of the filter pressure , If it is too small, it will cause larger leakage, and if it is too large, it will damage the parts.
The filter cloth selection of the filter press must meet the filter technical requirements of the filter paddle. The new filter cloth should be shrunk before production. The opening diameter should be smaller than the filter plate aperture. When the filter plate is matched, the cloth hole and the plate hole should be relatively concentric. The hole cloth should be close to the wall of the cylinder, otherwise it will cause unclear filtration, low filtration rate, rupture of the cloth cylinder, and failure to achieve the expected filtering purpose.
In the process of using the filter press, it is forbidden to start working in the factory when the number of filter plates is less than the specified number to avoid damage to the machine parts. Check the arrangement of the filter plates before feeding. The filter cloth should not be folded to prevent large leakage; after unloading the cake, the filter plates must be tightly arranged and arranged neatly.
The selection of the filter press must meet the filter technical requirements of the filter paddle. The new filter cloth should be shrunk before production. The opening diameter should be smaller than the filter plate aperture. When the filter plate is matched, the hole of the cloth and the plate hole should be relatively concentric. Jane should be close to the wall of the cylinder, otherwise it will cause unclear filtration, low filtration rate, and rupture of the cloth cylinder, which will not achieve the expected filtration purpose
Fully automatic vertical diaphragm filter press effectively saves energy
The working nature of the vertical filter press