Single-rod spiral drying extruder

Abstract

The invention discloses a single-rod spiral drying extruder, and is suitable for dehydration of wet materials with high water content in such industries as starch and feeds. The single-rod spiral drying extruder comprises a base, a feed box, a discharge box, a spiral main shaft, a water filter system and a transmission system. The single-rod spiral drying extruder adopts continuous production, is high in dehydration efficiency, simple in structure, convenient for use and maintenance, compact in whole structure, small in floor area and convenient for transportation, can recycle starch-contained residual liquid, and can reduce the cost and improve the economic efficiency.

Description

technical field [0001] The invention relates to the field of drying equipment, in particular to a single-screw squeeze dryer for mechanical extrusion dehydration of wet materials with high water content such as starch and feed. Background technique [0002] The single-screw squeezer is suitable for dehydrating wet materials with high water content in starch, feed and other industries. Its structure is a conical shell with built-in conical ribbons with unequal pitches. During the rotation process, the double factors of pitch length and height are formed. The resulting compression of the material. The dehydrated material is discharged from the discharge end, and the extruded water flows out through the sieve holes in the shell. [0003] As the material advances in the squeeze dryer, the moisture content of the material is getting lower and lower. It is obviously unreasonable if the dewatering holes are all the same size; The water tank does not have a water guide groove, and...

AI Technical Summary

Problems solved by technology

[0003] As the material advances in the squeeze dryer, the moisture content of the material is getting lower and lower. It is obviously unreasonable if the dewatering holes are all the same size; The water tank does not have a water guide groove, and it is easy to produce a water film during drainage, and the drainage speed is relatively slow, thereby affecting the drainage effect; Chinese patent CN103712421A is a variable-diameter single-screw shaft squeezer, which includes a frame, a driving device, and is arranged on the machine. The feed assembly and discharge assembly at both ends of the frame, the tapered screen cage installed in the frame, and the drive rotation shaft installed in the screen cage and coaxially arranged, the drain hole is a tapered hole that becomes larger from the inside to the outside

Through the tapered hole that becomes larger from the inside to the outside, the water is squeezed through the small hole and then discharged along its taper. Although the drain hole in this patent is a tapered hole, there is no water guide groove on the drain hole, and the same problem exists.

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