Energy-saving food drying device with recyclable hot gas

Abstract

The invention provides an energy-saving food drying device with recyclable hot gas, and belongs to the technical field of processing of foods. The energy-saving food drying device comprises a supporting device and a drying device, wherein a box body is fixedly welded at the middle part of the upper surface of a bottom plate through welding; electric heating pieces are fixedly arranged on the leftside and the right side of an inner cavity of the box body; an electric expansion plate is arranged in the inner cavity of the box body; a fan is arranged on the left side of the inner cavity of a first drying box; an electrical heating rod is arranged on the right side of the fan; a suction blower is fixedly welded to the right side of the upper part of the first drying box; and a filter is arranged on an exhaust pipe. According to the energy-saving food drying device disclosed by the invention, the left end of a moisture absorbing machine is connected with the first drying box through a circulating pipe, so that the energy-saving food drying device has the function of performing dampness removing on waste heat in the box body for cyclic utilization; feeding plates are obliquely arrangedon the inner side of a wind net, so that the energy-saving food drying device has the function that the foods can conveniently fall down to be dried; and the energy-saving food drying device has the characteristics of being simple in structure, high in practicality and good in drying effect.

Description

technical field [0001] The invention relates to a food processing facility, in particular to an energy-saving and recyclable food drying device for hot gas. Background technique [0002] Drying is the most widely used food preservation method. Many foods need to be kept dry during the preservation process. After drying, the water activity of the food is reduced, which is conducive to long-term storage at room temperature. At the same time, the weight of the dried food is reduced. The reduced volume can significantly save the cost of packaging, storage, and transportation; drying is not only beneficial to food preservation, but also suitable drying and dehydration of soybeans, peanuts, corn, etc., is also conducive to post-processing and improve product quality; now people usually dry food They are all realized by air-drying and sun-drying. Although the cost of this drying method is low, the drying time is long, which greatly affects the production efficiency; and natural dry...

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Problems solved by technology

[0002] Drying is the most widely used food preservation method. Many foods need to be kept dry during the preservation process. After drying, the water activity of the food is reduced, which is conducive to long-term storage at room temperature. At the same time, the weight of the dried food is reduced. The reduced volume can significantly save the cost of packaging, storage, and transportation; drying is not only beneficial to food preservation, but also suitable drying and dehydration of soybeans, peanuts, corn, etc., is also conducive to post-processing and improve product quality; now people usually dry food They are all realized by air-drying and sun-drying. Although the cost of this drying method is low, the drying time is long, which greatly affects the production efficiency; and natural drying requires a large drying area, which is affected by climate conditions. The impact is very large, so it is very inconvenient in the actual operation process; the current food dryers put the food on the drying plate during the food drying process, and use heating, ventilation, microwave treatment, etc. to dry the items ; Existing dryers have the following deficiencies: the drying hot air is directly discharged, causing heat waste, and the second is that the moisture produced in the drying process is difficult to discharge; therefore, it is necessary to improve

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