Used Centrifuge equipment

Centrifuges
A centrifuge is a machine that uses centrifugal force to separate various components of a fluid. All centrifuges work by the centrifugal force causing denser substances and particles to move outward in the radial direction while the objects that are less dense are displaced and move to the center. Special Projects International offers used centrifuges from well-known manufacturers like Ametek, Bock, Heinkel, Sharples, Tolhurst, U.S. Centrifuge, Westfalia, and more. The types of centrifuges we offer are listed and described below.

Solid Basket Centrifuge
Solid basket centrifuges use centrifugal force to perform a liquid/solid separation. These centrifuges have a rotating basket into which the slurry is fed. As the slurry accelerates with the rotating basket, the solids/contaminants are pulled radially away from the liquid to collect along the inner wall of the basket and eventually discharge by gravity through the outlet. Liquid clarification continues until the basket can no longer retain any solids and must be emptied. Solid basket centrifuges are commonly found in wastewater treatment, coal manufacturing, and polymer manufacturing.

Perforated Basket Centrifuge
Perforated basket centrifuges have a filter media or filter bag in a rotating basket. The feed slurry is dumped into the rotating basket and the liquid flows through the filter media and perforated basket. As the liquid flows through, the solids are collected on the filter media and in the perforated basket. Additionally, solids may also be washed and dried in the basket for easy automated or manual discharge.

Inverting Filter Centrifuge
Inverting filter centrifuges have an axially moveable filter cloth that can be inverted while under rotation to completely discharge the solids from the contaminated feed and leave the filter cloth free of residual heel. The inverting filter centrifuge is used for solid-liquid separation within the Active Pharmaceutical Ingredient (API), pharmaceutical, and chemical industries.

Decanter Centrifuge
Decanter centrifuges, also known as horizontal bowl centrifuges, are usually used for the separation of liquids from appreciable amounts of solids in one single continuous process. By creating centrifugal force with rotation, the denser particles within the feed slurry get pressed outwards against the rotating bowl wall. The less dense liquid phase forms a concentric inner layer. The sediment formed by the solid particles is continuously removed by a screw conveyor where it is further dried and discharged. Decanter centrifuges are commonly found in wastewater treatment, chemical, oil and gas, manufacturing, and food processing industries.

Disk Centrifuge
Disk centrifuges, also known as disc stack separators or conical plate centrifuges, have a series of conical discs which provide a parallel configuration of centrifugation spaces. Like many centrifuges, centrifugal force moves the denser components of the feed outwards towards the rotating bowl while the less dense components move towards the center. In a disk centrifuge, the stack of plates increase the surface settling area for solids which speeds up the separation process. These machines are commonly used to clarify liquids that have a small portion of suspended solids.

Tubular Bowl Centrifuge
Tubular bowl centrifuges are primarily used for the continuous separation of liquids from liquids or liquids from solids when high centrifugal fields are required for separation. The rotating bowl of a tubular centrifuge has a long hollow tube where the feed enters near the axis. The feed flows through the tube where centrifugal force separates the two components by density and removes them in two different streams. Radial vanes are used to change the acceleration of the feed material before entry and exit. Tubular centrifuges are commonly found in the pharmaceutical, chemical, food, paint, and fuel oil industries.