Our R & D of screw press unique design concept, which is used in the field of the residue concentration, fiber recovery, sludge concentration, and is especially suitable for to waste paper as raw materials to paper mills. Its working principle is the spiral squeezing separation of solid and liquid, need to deal with the liquid through a pipe or funnel into screw press, first through a gravity dehydration, using a vibration device so that the uniformity of the dehydration. The initial dehydration after the material in the sieve surface filtration layer is formed, it continuously is spiral removed from the surface of the sieve and sent to the back of extrusion dehydrating part and the formation of the material plug, material between the plug and the inner wall of the friction force to ensure the working pressure. A mechanical device capable of changing weight provides a reverse pressure to adjust the concentration of the material to be dehydrated.

The equipment can be made of stainless steel and cast iron, power from 30Kw to 4Kw, processing capacity can reach 5 ~ 350m3, that is, 10 to 50 tons of dry solid. And easy to install, maintenance simple.

The solid content of less than 1mm in the influent is very little, and the screw extruding machine can process the material that is more than 20mm. The dry matter content of the separated solid is more than 65%, and the size of the gate slot is 0.1mm ~ 1.0mm.

For liquid purification and solid liquid separation is a pressure filtration. As a result of a new method of mechanical, the process of interception, filtration and compression is accomplished in one unit. With these methods, the function of water treatment liquid is less than 1% of the spiral press. Separating solids from liquids over 60%. Not only high concentration of wastewater can be treated, different water quality and concentration of wastewater can also be treated. The type and size of the solid are not important to the separation.

The size of the screen grid is between 100 m and 1000 m. Due to the optimization of the filter, the water industry is compelling. Due to simple and effective design, maintenance is an unexpected small. Normal operation is very simple, access control system is no problem.

Another application of screw press is the sewage purification, waste water and sludge compression, dehydration and recovery of pulp fiber.

Application domain:

1, the material is dehydrated (on cleaner, sieve, fiber classifier behind, waste disposal);

2, the purification of waste water;

3, fiber recycling;

4, the separation of non sticky objects;

5, silt flotation, silt deposition.