Multi-layer chain combined continuous drying system

Abstract

The invention relates to a multi-layer chain combined continuous drying system. The multi-layer chain combined continuous drying system comprises a swinging charging machine, a chain type multi-layermesh belt and a heat pump drying room, wherein a material shifting mechanism, a material overturning mechanism and a brush roller; the heat pump drying room comprises a closed drying chamber and a heat pump machine set; and the drying chamber is divided into an upper layer wind chamber and a lower layer wind chamber by a partition board which is horizontally arranged. According to the multi-layerchain combined continuous drying system disclosed by the invention, the swinging charging machine and the material shifting mechanism are arranged, so that the problem that the thickness of a materiallayer on the transporting mesh belt is uneven can be effectively solved; the ventilation problem of the material layer is solved from an inner respect and an outer respect by the material overturningmechanism and the brush roller of the drying system, so that the dehumidifying effect is strengthened; through the specific arrangement of the chain type multi-layer mesh belt and the direction of ahot air current of the heat pump, and a recycle gas loop separated by the partition board of the drying chamber, the purpose that the wind speed and wind capacity of hot gas in the drying chamber areuniformly distributed is guaranteed; the quality of the dried materials is guaranteed by the heat pump machine set in the heating manner of being close to natural drying; and the heat pump machine sethas the excellent properties of being energy-saving and environmental-friendly.

Description

technical field [0001] The invention belongs to the technical field of drying equipment for dehydrated vegetables, in particular to a multi-layer chain compound continuous drying system. Background technique [0002] The drying technology that can be used in the processing of dehydrated vegetables is mainly hot air drying at normal pressure. The products of hot air drying account for about 90% of the total output of dehydrated vegetables. The drying room is mainly heated by coal and wood. It is characterized by low cost, but The temperature is not easy to control and the product quality is poor; the material is heated unevenly, the drying speed is slow, and the heating temperature is relatively high, which is easy to cause the loss of nutrients and color changes of vegetables; long dehydration time, high energy consumption in the drying process, poor rehydration and The flavor is poor, so the dehydrated vegetables dried by normal pressure hot air are low-grade products in th...

AI Technical Summary

Problems solved by technology

[0002] The drying technology that can be used in the processing of dehydrated vegetables is mainly hot air drying at normal pressure. The products of hot air drying account for about 90% of the total output of dehydrated vegetables. The drying room is mainly heated by coal and wood. It is characterized by low cost, but The temperature is not easy to control and the product quality is poor; the material is heated unevenly, the drying speed is slow, and the heating temperature is relatively high, which is easy to cause the loss of nutrients and color changes of vegetables; long dehydration time, high energy consumption in the drying process, poor rehydration and The flavor is poor, so the dehydrated vegetables dried by normal pressure hot air are low-grade products in the market; in addition, the current drying process of dehydrated vegetables mostly uses belt dryers, and the feeding of conveyor belts may easily lead to the formation of layers of different thicknesses in the width direction of the mesh belt. Even, the thin material layer is "over-dried", while the thick material layer is insufficiently dried, which affects the quality of dehydrated vegetables

Images