Sludge thickening screw press

Work Principle

The sludge thickening screw press is composed of a thickener, a driving device, a filttate tank, a mixing system, and a frame. When the screw press is working, the sludge IS purnped to Ihe rousing tark by the sudge purmp, In the mean time, the dosng pumQ aiso guanttatively transports the polmer to the mixing tank, then the stirrina motor drives agitator to start mixing untl solid particles are floculated. When the liquid level reaches the upper level of the fiquid level sensor, the sersor gets a sigrwl and instructs the main motor of screw press to work, thereby starting to filter and press the sludge that comes into the screws body. Under the squeezing of the screw shaft, the sludge is raised step by step to the sludge outlet, and the filtrate flows out from the gap between the fixed ring and the moving ring.

In general the sludge thickener screw press uses the principle of screw extrusion which is finalized by the strong extrusion force from the change of screw diameter and pitch, and the tiny gap between the rroving ring and the fixed ring, thus the sold andliguid can be separated. Sluckenthickening screw press is a new type of solick-licuid separationequipment for sludge concentration.

Technical Features

The sludge thickening range is wide, it is applicable to sludge consistency ranges from 98% to 99.8%. The concentrate of the thickened sludge is stable and adjustable in the range of 90-96%. High concentration efficiency and small land space. No filter cloth, self-cleaning, no clogging, no need for high-pressure washing water.

Low speed operation, low energy consumption, low operating cost, no vibration, no noise.

Closed operation reduces odor emissions.

Few vulnerable parts, low maintenance cost and long service life. Fully automatic control, continuous operation, simple maintenance and management.

Scope of application

As the pretreatment equipment of the sludge deep dewateering system, it is usually matched with ultra-high pressure elastic press, membrane filter press and other sludge deep dewatering equipments.

Replace the sludge thickening tank as the pretreatment equipment of the sludge dewatering system. Used in other slurry concentration or solid-liquid separation processes.