How does the inclined screen solid-liquid separator work

11/08/2024News Solid-liquid separator440

The inclined screen solid-liquid separator is an efficient solid-liquid separation equipment widely used in environmental protection and industrial fields, such as sewage treatment, sludge treatment, chemical, food, pharmaceutical and other industries. The following is the working principle of the inclined screen solid-liquid separator:

The inclined screen solid-liquid separator mainly utilizes the filtering effect of the screen mesh and the inclination angle of the inclined screen surface to separate solid substances from liquids. When the solid-liquid mixture to be processed enters the inclined screen solid-liquid separator, the mixture is first evenly distributed onto the stainless steel inclined screen surface through overflow or submersible pump. Due to the small and smooth surface gaps and large back gaps of the screen mesh, the drainage is smooth and not easily blocked. Therefore, solid substances are trapped on the screen mesh, while the filtered liquid flows out from the gaps of the screen mesh and is discharged through the drainage pipe.
Under the vibration of the inclined screen surface, solid substances move downward along the inclined screen surface. At the same time, the spiral screw (also known as the squeeze screw) gradually pushes the dirt on the screen towards the front of the machine and continuously increases the pressure at the leading edge. This pressure forces the moisture in the material to be squeezed out of the sieve under the action of edge pressure and filtration, further achieving solid-liquid separation. When the pressure on the front edge increases to a certain extent, the solid material is squeezed out of the discharge port, achieving the purpose of extrusion discharge.
In addition, the inclined screen solid-liquid separator is usually equipped with an automatic backwash system to clean the dirt on the screen to maintain the smoothness and separation efficiency of the screen.
The operation of the inclined screen solid-liquid separator is continuous, with the material continuously lifted into the body and the pressure at the leading edge continuously increasing, thus achieving continuous solid-liquid separation. In order to control the speed and moisture content of the discharge, the counterweight block below the main engine can be adjusted to achieve a satisfactory and appropriate discharge state.
Overall, the inclined screen solid-liquid separator achieves effective separation of solids and liquids through the filtering effect of the screen mesh, the inclination angle of the inclined screen surface, and the squeezing effect of the spiral screw. This device has the advantages of efficient separation, energy conservation and environmental protection, easy operation, low maintenance cost, and wide applicability, and has broad application prospects in multiple fields.