Variable-diameter single-screw-shaft dehydrating device

Abstract

A variable-diameter single-screw-shaft dehydrating device comprises a frame, a driving device, a feed component, a discharge component, a tapered sieve cage and a driving rotary shaft. The feed component and the discharge component are arranged at two ends of the frame. The tapered sieve cage is arranged in the frame. The driving rotatory shaft is mounted in the sieve cage and is coaxially arranged with the sieve cage. The driving device is connected with one end of the driving rotary shaft. A screw blade is arranged on the driving rotary shaft. The diameter of the screw blade gradually decreases along with the inner diameter of the tapered sieve cage. The diameter of the driving rotary shaft gradually increases along with decrease of the inner diameter of the sieve cage. The screw pitch of the screw blade gradually decreases along with the increase of the diameter of the driving rotary shaft. The variable-diameter single-screw-shaft dehydrating device is good in dehydrating effect and smooth in equipment water discharge, moisture content of dehydrated materials is obviously reduced as compared with the original moisture content, and energy as required by follow-up drying is greatly reduced.

Description

technical field [0001] The invention belongs to the field of drying equipment, and in particular relates to a single-screw extruding machine for mechanically extruding and dehydrating materials such as corn germ and fiber. Background technique [0002] The single screw squeeze dryer is a mechanical extrusion dehydration drying device, which is often used in food, grain, and feed deep processing industries. It has a good dehydration effect on a variety of materials with high water content, and provides energy-saving conditions for the final drying of materials. Greatly reduce the total energy consumption of drying. [0003] The existing single-screw squeezer is composed of a frame, a feed assembly, a discharge assembly, a screw shaft, a screen cage and a driving device. A layer of screen is installed on the inner wall of the screen cage. Similarly, it is installed in the middle of the screen cage, and there are several blades on the shaft, and the diameter of the blades chan...

AI Technical Summary

Problems solved by technology

The compression ratio of this kind of squeeze dryer is small, the material extrusion effect is average, and the extruded water cannot be discharged from the screen in time, so the moisture content of the extruded material cannot be effectively reduced, and energy cannot be saved for the final drying. Not conducive to reducing production costs

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