Spiral conveying device of drying machine

By setting spiral blades and spring scrapers in the spiral conveying device of the dryer, combined with the heat transfer layer and drainage structure, the problem of material deposition is solved, effective material transmission and efficient drying are achieved, material deposition and hot gas reaction are avoided, and the working efficiency of the dryer is improved.

CN223345851UActive Publication Date: 2025-09-16CHANGZHOU YIMIN DRYING EQUIP
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Patent Information

Application Number
CN202422824654.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-09-16
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

Existing spiral dryers cannot effectively process the deposited materials between the ends of the spiral blades and the inner wall of the dryer cavity.

Method used

A spiral conveying device for a dryer is designed. The outer surface of the spiral shaft is fixedly connected to the spiral blade, and spring scrapers are set on both sides. The scrapers move up and down to scrape up the deposited materials. At the same time, a heat transfer layer and a drying and conveying area are set in the cylinder. The hot air area is used to heat the material and discharge the condensed water and water vapor through the condensed water drainage hole and the water vapor outlet.

Benefits of technology

It effectively scrapes and transports deposited materials, avoids direct contact and reaction between high-temperature hot air and materials, improves drying efficiency, and discharges condensed water and water vapor in time to ensure a smooth drying process.

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Abstract

The utility model discloses a spiral conveying device of a drying machine, which relates to the technical field of drying and comprises a barrel, a spiral shaft is connected to the center of two ends of the barrel through bearings, a spiral blade is fixedly connected to the outer surface of the spiral shaft, and a plurality of spring scrapers are fixedly connected to the upper side and the lower side of the spiral shaft respectively. The spring scrapers on each side are located between the adjacent spiral blades, pin holes are formed in the outer surfaces of the spring scrapers, springs are arranged in inner cavities of the spring scrapers, the upper ends of the springs are fixedly connected with the upper walls of the inner cavities of the spring scrapers, the lower ends of the springs are fixedly connected with scrapers, and straight notches are formed in the upper ends of the scrapers. The straight notches are connected with pin holes of the spring scrapers through pins in a penetrating mode, a heat transfer layer is arranged in an inner cavity of the barrel, a hot air area is arranged on the outer side of the heat transfer layer, and a drying conveying area is arranged on the inner side of the heat transfer layer. The device disclosed by the utility model has the characteristic of being capable of treating sediment materials.
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