Liquid-solid-liquid three-phase horizontal screw centrifuge

Abstract

The invention discloses a liquid-solid-liquid three-phase horizontal screw centrifuge which comprises a drum (1), wherein a screw cylinder (2) is arranged in the drum (1); a small end journal (3) and a big end journal (4), which are connected with the drum (1), are arranged at both ends of the drum (1) respectively; a light liquid layer (5), a solid layer (6) and a heavy liquid layer (7) are arranged in the drum (1) from inside to outside respectively; the inner wall of the end, connected with the big end journal (4), of the drum (1) expands outwards to form a small cone angle; light liquid layer discharge channels and a heavy liquid layer discharge channel are arranged on the big end journal (4) respectively; and a liquid phase demarcation mechanism A and a liquid phase demarcation mechanism B are arranged at the light liquid layer discharge channels and the heavy liquid layer discharge channel respectively. The liquid-solid-liquid three-phase horizontal screw centrifuge has the advantages of smart structural design and reliability in use, the separation effect of a light liquid, a solid phase and a heavy liquid can be improved through adoption of the liquid-solid-liquid three-phase horizontal screw centrifuge, and the working stability of the liquid-solid-liquid three-phase horizontal screw centrifuge is guaranteed.

Description

technical field [0001] The invention relates to a decanter centrifuge, in particular to a liquid-solid-liquid three-phase decanter centrifuge. Background technique [0002] At present, the existing decanter centrifuges are mainly used for solid phase dehydration, liquid phase clarification, and solid-liquid-liquid three-phase separation. When encountering a medium whose solid phase gravity is between the two liquid phases, the separation effect is poor, resulting in the failure of the centrifuge to work normally. [0003] In CN205032289U, a utility model patent named "an improved parallel-flow decanter centrifuge" is disclosed, which includes a machine base, a casing, a drum, a screw conveyor, a feed pipe, left and right bearing seats, differential There are several small holes on the drum flange at the junction of the drum column and the cone, and a collection port is provided at the corresponding position of the casing. The heavy phase liquid layer will flow out from the...

AI Technical Summary

Problems solved by technology

The decanter centrifuge with this structure can not only realize liquid-solid two-phase separation, but also liquid-solid-liquid three-phase separation. However, due to structural limitations, when the solid specific gravity is between the two liquid phases When the medium is used, its separation effect is poor, resulting in the centrifuge not working properly

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