Centrifugal solid-liquid separator

Abstract

The invention relates to a centrifugal solid-liquid separation technology and specifically relates to a centrifugal solid-liquid separator. The main technical scheme includes that the centrifugal solid-liquid separator comprises an outer pipe, a screw device arranged in the outer pipe, a solid phase outlet device and a liquid phase outlet device, wherein the solid phase outlet device is arranged at the tail end of the screw device, the liquid phase outlet device is arranged at the top end of the screw device, the screw device comprises a screw conveyor shaft, screw blades are arranged on the screw conveyor shaft, a plurality of turbulators are arranged on the screw conveyor shaft, the solid phase outlet device comprises a primary solid phase mud outlet and a secondary solid phase mud outlet, the primary solid phase mud outlet is arranged along the axial direction of the screw conveyor shaft, a mud blocking sheet is arranged at the tail end of the screw conveyor shaft, the secondary solid phase mud outlet is arranged between the mud blocking sheet and the primary solid phase mud outlet, the secondary solid phase mud outlet is horizontally arranged and communicated with the primary solid phase mud outlet, and screw pitches of the screw blades are gradually increased from a screw blade settling area to a screw blade conveying and wiping area. The centrifugal solid-liquid separator is simple in structure, large in volume and good in solid-liquid separation effect.

Description

technical field [0001] The invention relates to solid-liquid separation technology, in particular to a centrifugal solid-liquid separator. Background technique [0002] With the improvement of living standards, people pay more and more attention to environmental protection. Wastewater treatment is a particularly important link that reflects environmental protection issues. Therefore, centrifugal solid-liquid separation devices are more and more widely used in environmental protection, urban wastewater treatment and other fields. After the sludge is sent into the cavity of the outer pipe by the screw conveying shaft, under the action of the centrifugal force generated by the high-speed rotation, due to the large proportion of the sludge particles, the resulting centrifugal force is also relatively large, and they are thrown and attached to the inner wall of the outer pipe. A solid layer is formed; the density of water is small, and the centrifugal force is also small, so a l...

AI Technical Summary

Problems solved by technology

Third, the spiral blades are equidistantly distributed, which is not conducive to effective solid-liquid separation

Fourth, the existing solid phase outlet is arranged radially, and the solid phase outlet is arranged at the top of the small end of the conical outer tube, so that the amount of solid phase removed at one time is less, which is not conducive to solid phase removal

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