Gypsum dewatering in thermal power plants

Filter belts for filtration of fine gypsum slurries on horizontal vacuum belt filters are equipped with either a conventional stainless steel clipper seam or a stainless steel clipper seam with a multifilament sealing. Another option is a stainless steel clipper seam with textile overlap, however this solution is not recommended as a standard, as the overlap can generally be a source of operational problems (lower filtration capacity in the ovelap area, higher belt thickness in the overlap area and associated operational problems, etc.). The belts are usually made of polyester, which has the best mechanical properties.