Sludge Treatment Solid-Liquid Separation Decanter Centrifuge

LW series spiral unloading centrifuge is a horizontal continuous operation, spiral continuous unloading sedimentation centrifuge. It is suitable for solid-liquid separation, particle size classification, liquid phase clarification and sludge dehydration of various suspensions in various industrial sectors (such as: polyoxyethylene resin, ammonium sulfite, barium carbonate, strontium sulfate, lithopone, titanium dioxide, ore, porcelain clay, kaolin, diatomaceous earth, starch, soybean protein, peanut protein, juice, beverage, vegetable oil, citric acid, waste oil purification, washing water purification, wine lees, sports physical fat, blood meal, power plant sludge, printing and dyeing sludge, papermaking sludge, natural gas desulfurization sludge, calcium carbide sludge, activated sludge, ammonia sludge, car wash sludge, alum sludge, drilling sludge, coal flotation waste, cryolite flotation liquid, etc.).

Working principle

Decanter centrifuge is the abbreviation of horizontal spiral discharge sedimentation centrifuge. The horizontal centrifuge is mainly composed of a drum, a screw, a planetary gear differential, a bearing seat, a feed pipe, a frame, a cover, a main motor, an auxiliary motor, an electrical control system and various monitoring instruments in the form of a mechanical differential. When the material enters the drum chamber of the centrifuge, it is driven by the high-speed rotating drum to rotate at high speed, so the material will be subjected to a strong centrifugal force. Since the density of the solid particles in the mixture is very high and the centrifugal force is also very large, the solid phase will be poured on the inner wall of the drum to form a solid ring layer.

At the same time, the liquid phase has a small density and a small centrifugal force, and the liquid ring layer can only be formed inside the solid ring layer. Because the spiral and the drum rotate at different speeds, there is a relative motion between the two (i.e., the speed difference). Therefore, the spiral pushes the solids deposited in the inner wall of the drum to the discharge port at the small end of the drum, and the liquid phase is discharged from the overflow port at the large end of the drum. The function of the differential is to form a certain speed difference between the drum and the spiral.

The horizontal sedimentation series centrifuge has significant advantages such as large processing capacity, high separation accuracy, low energy consumption, and low operating noise. The whole machine is made of stainless steel, which has strong corrosion resistance and can adapt to various complex working conditions. Equipped with advanced electronic control system, it can realize intelligent control, remote monitoring and fault self-diagnosis, which greatly improves the safety and convenience of equipment operation. With its stable and reliable performance, this series of equipment has become the preferred solution for many industries to improve separation efficiency and reduce operating costs.