Vacuum belt dehydration machine is an important secondary dehydration gypsum equipment, industrial filter cloth determines the quality of the effect of dehydration. Industrial filter cloth life is the type of filter, performance, use conditions, the temperature of the processed material and many other factors to decide. In general industrial filter cloth used in 4-18 months, and in our experience, our industrial filter cloth used in at least six months or more.
General industrial filter cloth in the use of 12 months when the need to be replaced, because the use of industrial filter cloth after a period of time, more or less will appear deformation, shrinking. Treatment of magazines remain in the industrial filter cloth can not be washed off, so although they can continue to use, but the impact of the filter effect, generally when the gypsum water content greater than 10% of the case, the first consideration is whether the industrial filter cloth clogging , And to be replaced industrial filter cloth.
Analysis of industrial filter plugging the main reasons are several: The above causes of industrial filter cloth itself, the quality of industrial filter cloth with its material, preparation technology, interface technology and many other factors. As a result of the knitting process with velvet lines so after some time prone to some of the surface of the filter residue in the phenomenon of industrial filter cloth, so most industrial filter cloth manufacturers have chosen the more expensive 100% polyester, polyester Filler wire filled with polypropylene, so the probability of industrial filter cloth deformation will increase. The cause of the filter itself will also lead to industrial filter cloth clogged, in general, because the industrial filter cloth flushing water is the process of water, generally not blocked, two filter cake rinse water is generally used in the process of water + filter cloth rinse water Backwater + vacuum pump circulating water backwater, process water is only occasionally to be added. Filter cloth flushing water back to the relatively high concentration of gypsum so easily lead to filter cake washing nozzle clogged.
There is the improper operation caused by the clogging of industrial filter cloth, the daily work need a lot of attention, the need for timely cleaning of industrial filter cloth, increase the service life of industrial filter cloth, increase the filtering effect.
(Addtime：2018-1-29)
