Screw extrusion dehydrator

Abstract

The invention discloses a screw extrusion dehydrator which comprises a casing, a screen drum and a rotating shaft, wherein a screw panel is arranged at the front section of the rotating shaft, the external diameter of the screw panel is matched with a taper sieve plate and reduces greatly, a gap is reserved between the screw panel and the screen drum, the rear section of the rotating shaft adoptsa hollow structure, and a plurality of drain holes are formed in the outer surface; the screw extrusion dehydrator further comprises an extrusion head matched with the rear section of the rotating shaft, the extrusion head takes the shape of a frustum with surface holes, the upper part of the extrusion head is matched with the external diameter of the rotating shaft, the lower part of the extrusion head is matched with the rear end of the rotating shaft, and a locking nut used for fixing the extrusion head is further arranged on an auxiliary shaft; a rotary water collecting drum is arranged atthe lower part of the extrusion head, a water passing hole is formed in the extrusion head inside the rotary water collecting drum, an opening is formed in one end of the rotary water collecting drum; a fixed water collecting tank is positioned in the lower side of the opening of the rotary water collecting drum, and a water outlet is formed in the fixed water collecting tank. The screw extrusiondehydrator provided by the invention is high in extrusion efficiency and good in drainability, and solves the problem of poor drainability in the prior art.

Description

technical field [0001] The invention belongs to the technical field of dehydrators, and in particular relates to a screw extrusion dehydrator. Background technique [0002] In the existing breeding and pharmaceutical fields, traditional dehydration equipment generally uses a screw extrusion dehydrator for dehydration. Existing screw extrusion dehydrators usually include a shell, a screen drum located inside the shell, and a rotating shaft with spiral blades. The rotating shaft is rotated by the power device to push the material backward, and during the pushing process Extrusion force is generated, so that the moisture in the material is squeezed out and discharged from the pores of the screen drum into the water tank at the lower end of the shell. [0003] The commonly used screw extrusion dehydrator usually adopts the way of water outlet from the outer wall of the body, and the screw feeds and extrudes. The material volume compression methods are as follows: 1. The screw ...

AI Technical Summary

Problems solved by technology

Cause the inner ring of the filter cake, the front and back can not be water

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