High Quality Natural Fiber Cement Additive Quick Setting Siliceous Earth Powder Cellulose Filter Aid

The commonly used filter aids include diatomite, perlite, cellulose, asbestos, graphite powder, sawdust, magnesium oxide, gypsum, activated carbon, acidic clay, etc. Diatomite has a large specific surface area, which can adsorb colloidal substances and form filter cakes with high porosity. It is the most widely used filter aid. Paper pulp is often used as a pre coating to prevent early clogging of the filter cloth.

The use method of filter aid: one is to mix the filter aid with the suspension to be filtered in a certain proportion, and then filter together; The other is to prepare a suspension containing only filter aid, filter it first, form a pre coating on the filter medium, and then filter the filter slurry. The pre coating of the filter aid can withstand a certain pressure without deformation, and can prevent the filter cloth from increasing resistance due to clogging.