A dryer with a bulk material device set in the storage layer

Abstract

The invention relates to a dryer with a material dispersing device arranged on a material storage layer. The dryer comprises two continuous material storage layers, wherein an air inlet duct is arranged on one side of each material storage layer, an air outlet duct is arranged on the other side of each material storage layer, and a feeding unit is arranged above the top material storage layer; and the material dispersing device is arranged in the feeding unit, and the material dispersing device comprises a material dispersing shaft arranged in the feeding unit, a helical blade arranged on the material dispersing shaft, a power unit for driving the material dispersing shaft to rotate, a plurality of high material level indicators arranged in the feeding unit above the material dispersing shaft and a plurality of low material level indicators arranged in the material storage layer below the material dispersing shaft. The dryer further comprises an automatic control system used for acquiring the signals of the high material level indicators and / or the low material level indicators and controlling the material dispersing device to start or stop. The dryer can ensure that the material is continuous and stable without increasing the layer number of the material storage layers and can prevent the hot wind short-circuit phenomena of connected drying layers from occurring.

Description

technical field [0001] The invention relates to a drying device, in particular to a drying machine provided with a bulk material device in a material storage layer. Background technique [0002] The drying chamber of the existing continuous dryer is divided into a cooling layer, a drying layer, a retarding layer and a material storage layer from bottom to top. In order to make the material to be dried reach or approach the ambient temperature in the cooling layer, the number of layers of the cooling layer is generally fixed. In order to make the conveyed material reach or approach the specified moisture value in the drying layer, the number of layers in the drying layer is also fixed. In order to ensure that the dryer has a constant continuous material, the number of layers of the storage layer can be changed. [0003] The material storage layer of the small dryer is generally two layers. The test proves that the material falls under the action of gravity. The two layers o...

AI Technical Summary

Problems solved by technology

The increase in the number of storage layers will inevitably increase the difficulty of installation and increase the materials used in the dryer. In addition, the monitoring ability of the monitoring equipment must be improved to ensure normal and continuous operation.

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