Drum thickener COTRAC

for sludge treatment

The ESTRUAGUA Sludge thickener COTRAC ® is built in stainless mesh AISI 304 of triangular section and parallel to the axis. The sludge that must be treated is introduced in the inside of the drum by a distribution box and a double conducting channel. The filtered liquid crosses the holes while the purged dregs are brought to the exit of the debris by an internal helicoidal band. The dryness and the productivity are a function of del incoming flow and the conditioning and type of sludge. The capture index of these is excellent. CHARACTERISTICS The ESTRUAGUA thickeners are closed and compact. All parts in direct contact with the effluent are in stainless steel or in plastic materials. DRUM Diameter and length according to model Mesh e=0.5 by the standard model Other possible meshes Internal helix SLUDGE ENTRY BOX It was designed to have a good distribution of the effluent over the drums surface It is constituted by an entry box and a little double drain channel that distributes the flow along two generators located under the drum axis. This disposition allows a distribution of the sludge over a great filtering surface and a tangential filtration defect. DRUM CLEANING SYSTEM It consists of two cleaning ramps with flat jet pulverizers and a small channel for the recovery of the drippings