双龙环保

Spiral Filter Belts

2018-04-25 09:29:04 管理员 649

 Spiral Filter Belts

Spiral filter belts are usually made of abrasive resistant polyester, it also with special characteristics of high temperature resistance.

Spiral filter belts are produced by using of different technology than other belts, Two neighbouring spiral loops in belt are connected together with monofilament yarn.

 

Spiral filter belt does not need extra seam (joint) like woven belts, because spiral loops at the both ends of the spiral belt can be connected together. Spiral seam on spiral belt is stronger and lifetime of this connection is in some applications more durable than clipper seam, which is used for other woven belts. Therefore spiral belt could be a solution for applications, where woven belt with clipper seam prematurely fail.

 

Belt edges are standardly reinforced by strip of high mechanically resistant and flexible two component glue. High quality glue increases mechanical resistance of belt edges and holds the filling yarns strongly in fabric.

 

Dewatering and filtration properties of spiral belts are related with its air permeability, which can be adjusted by inserting a suitable type of filler wires inside the spirals. We offer spiral fabrics within the range of air permeability from 400 to 1,000 CFM.

 

Spiral filter belts are especially suitable for dewatering of fibrous material (paper sludge, pulp) and sludges with a high content of inorganic particles (e.g. mining sludge,coal, sand), but they can also be used for dewatering of good quality digested municipal sludge. If the sludge has a high content of organic particles or if it is sticky and muddy, there is a risk of spiral fabric blinding.