Solar heat pump composite modular dryer for wolfberry

Abstract

The invention relates to a solar heat pump composite modular dryer for wolfberry. The dryer comprises a plurality of box body drying channel modules; each box body drying channel module comprises a box body (1); the middle section of each box body (1) is provided with a heat insulating channel (2) and a drying channel (3); the back ends of each heat insulating channel (2) and each drying channel (3) are provided with air blowers (4); an auxiliary heating system (5) is arranged behind each air blower (4); a feeding and discharge hole (6) is formed in front of each drying channel (3); a return fan (8) is arranged above the middle of each drying channel (3); each return fan (8) is connected with the back side of each air blower (4) at the back end of each drying channel (3) through a return channel (9). According to the solar heat pump composite modular dryer for the wolfberry, solar energy is used as heat energy, a high temperature heat pump is arranged to provide auxiliary heat energy, energy is greatly saved, the wolfberry drying cost is reduced, the productivity is improved, and the food safety, energy conservation and environment friendliness are ensured.

Description

technical field [0001] The invention relates to a wolfberry solar heat pump composite modular dryer, which belongs to the technical field of food processing equipment. Background technique [0002] With the development of agricultural mechanization, informatization, scale, and professional industrial sectors, a good foundation has been established in the northwestern region of my country, and the prospects for agricultural development are promising. This area is suitable for planting many high-quality agricultural products, such as: wolfberry, grapes , red dates, etc., especially wolfberry products are outstanding. Due to factors such as remote geographical location in Northwest China, difficult transportation and backward processing technology, most products need to be dried and processed and cannot be eaten fresh. Lycium barbarum from fresh fruit to drying is the most critical section of the wolfberry industry chain. It will determine the quality of dried wolfberry fruit a...

AI Technical Summary

Problems solved by technology

At present, the drying of wolfberry usually adopts the natural tanning method or the kiln-type coal-fired earth furnace hot air channel drying method, but these two methods have certain shortcomings: 1. Due to the long time of natural tanning, the efficiency is low, and the sanitary conditions are poor. , the product is easily affected by secondary pollution and weather changes, etc., the dehydration effect is poor, and it is easy to regain moisture, agglomerate and mildew, so that the quality of dried fruit is not good; The thermal efficiency is low, the energy consumption is large, the environmental pollution is serious, and the sulfur content of the product is easy to exceed the standard; in addition, because the kiln-type coal-fired earthen furnace hot air channel drying method requires frequent feeding and discharging, the feeding port and the discharging port need to be frequently opened and closed. The labor intensity of workers is high, and the heat loss in the channel is large, which may easily cause temperature changes in the channel, which will affect the quality of wolfberries; when the equipment fails, the materials in the entire channel will be damaged, resulting in greater losses

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