Оборудование для механического обезвоживания осадка

Screw conveyor

Conveyors are intended for transporting waste or dehydrated sludge with moisture content of up to 85%. Horizontal or inclined conveyors of up to a length of 30 m can be manufactured. These conveyors are intended for use in wastewater with a pH of 6.5 - 8.5.

The screw is manufactured from wear resistant carbon steel (or stainless steel on customers demand); all other conveyor parts are manufactured from stainless steel AISI 304 or AISI 316.

Depending on conveyor configuration, the device is assembled in modular sections. Sections for loading of the transported material have a feed mounted on the top part of the frame. The sections are bolted together and mounted on support legs. The frame is closed from above by a cover which is bolted on.

The sections of the conveyor frame have U-shaped cross-section where the transporting screw is located. The conveyor’s bottom is protected by a wear-resistant polymeric insert that that increases the lifetime.

The transporting screw is manufactured from separate sections which are welded together. The transporting screw is driven by a geared motor. from the conveyor can be mounted at any inclination from 0° to 35°.

Transported material is fed into the conveyor through the loading hoppers, before being moved along the conveyor by the screw to the discharging side.

  • axle free screw of the transporter prevents blocking
  • closed design of the conveyor prevents spillages and dust
  • corrosion proof materials ensures reliability and long lifetime

The conveyor automatically switches on after an adjustable time period from when the screen starts its operation. Other automation options are also possible. Alarm systems of the normal operation indication and emergency stops are provided.

It is possible to transfer equipment status data to a higher level automated process control system depending on the client’s requirements..

The screw can be reversed in order to address jams and congestion.

Conveyors with screens and compacting presses are high-performance systems for mechanical wastewater treatment. Equipping the control system with programmable modules makes it possible to integrate sub systems into one system with a common control center and remote dispatching.

Main technical characteristics
Capacity, [m3/h]2...35
Screw diameter, [mm]190...460
Conveyor length, [m]3...30
Conveyor inclination angle, [degree]0...35