Lotus seed electric heating drum drying device

Abstract

The invention discloses a lotus seed electric heating drum drying device. The lotus seed electric heating drum drying device comprises a rotating electrical heating cylinder, hollow shafts are connected with both ends of the rotating electric heating cylinder, and the hollow shafts are mounted on bearing seats on a bracket. A feeding port is formed on the right side of the rotating electric heating cylinder, a discharging port is formed on the left side of the rotating electric heating cylinder, a rotating conductive slip ring is connected to the tail end of the left side of the left hollow shaft, and a coupling and a reducer are sequentially connected to the tail end of the right side of the right hollow shaft. A variable frequency motor controlled by a forward and reverse controller is connected to the reducer, insulation cotton is arranged between an inner drying cylinder and an outer fixing cylinder in a filled mode as an insulation layer, and a silicone rubber high temperature resistant cable penetrates through the hollow shaft on the left side. One end of the silicone rubber high temperature resistant cable is connected to the rotating conductive slip ring in sequence and connected with an external power supply, and the other end of the silicone rubber high temperature resistant cable is connected to a relay-controlled electric heating tube. A temperature controller is connected to a temperature sensor and a relay separately. According to the lotus seed electric heating drum drying device, energy consumption is saved, constant temperature or variable temperature drying of lotus seeds can be realized, high quality products are produced, the residence time of lotus seeds in the drying cylinder can be controlled, and uniform drying of the lotus seeds are realized.

Description

technical field [0001] The invention relates to an electric heating drum drying device for granular and heat-sensitive agricultural products, in particular to an electric heating drum drying device for lotus seeds and other large particle materials. Background technique [0002] Lotus seeds are a characteristic agricultural product in my country and are deeply loved by consumers. Drying is an important means of processing dried lotus seeds. The lotus seeds have large granules and high starch content. Improper drying will easily cause lotus seeds to harden and prolong the drying time, which will affect product quality and drying efficiency. The traditional production method of dried lotus seeds is mainly to utilize charcoal fire to bake or sun-dried. Drying in the sun is easily affected by the weather, biological pollution, and takes a long time; the drying process easily oxidizes the polyphenols in the lotus seeds, resulting in blackening of the product; the disadvantage ...

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