The liquidity problem and adaptability of solid decanter centrifuge

- Aug 29, 2018-

The sedimentation efficiency of the solid decanter centrifuge is relatively low during the process of use, and it is generally only suitable for the treatment of relatively easy-to-separate materials during operation, mainly because of the gap operation, which avoids frequent discharge and cleaning to a certain extent. The treated materials generally have a low solid content (about 3% to 5%).

The solid decanter centrifuge has a simple structure and low price, and has strong adaptability when it is operated. It is often used for small and medium-scale production to a certain extent, such as low-demand slurry dewatering, liquid water purification, and recovery from waste liquid. Solid particles, etc., or for the separation of emulsions with a small difference in density between light and liquid phases and high dispersion, and a liquid-liquid-solid three-phase mixture. The single machine has a small production capacity and needs to be stopped to remove the sediment in the drum.

The solid decanter centrifuge does not have fluidity problems when it is operated. Therefore, the tubular centrifuge that is separated by liquid-liquid separation is used in connection operation, and the solid-liquid separation is performed during operation, due to solid phase precipitation. The fluidity of the material is poor, and only the gap operation can be used. After the solids have reached a certain volume, the drum is removed and cleaned. Otherwise, the solids accumulate more, the flow cross section is reduced, the flow rate is increased, and the residence time is reduced, which will reduce the separation efficiency. In order to maintain continuous processing in production, two centrifuges are used alternately.