Double circulation energy saving drying equipment with humidity discharging function

Abstract

The invention discloses double circulation energy saving drying equipment with a humidity discharging function. According to the double circulation energy saving drying equipment, while a product to be dried is dried, the purpose of dehumidifying is achieved, so that discharging of heat is reduced, and the effect of energy saving is good. The double circulation energy saving drying equipment comprises a drying device and a heat source supplying device. A main circulation pipeline used for improving temperature in the drying device is arranged between the drying device and the heat source supplying device. A humidity discharging pipe used for discharging humidity is arranged on the drying device. A dehumidifying pipeline is further arranged. After exchanging heat with the heat source supplying device or the humidity discharging pipe, the dehumidifying pipeline communicates with the drying device. Because the temperature of air discharged from the humidity discharging pipe is slightly lower than the temperature of air in a dehumidifying air inlet pipe, under the condition that dehumidifying is achieved, the dissipation of heat energy can be reduced, the effect of energy saving is obvious, and the purposes of energy saving and consumption reducing are achieved. The double circulation energy saving drying equipment is applicable to drying and baking treatment of agricultural and sideline products such as grain, traditional Chinese medicine and timber and chemical products.

Description

technical field [0001] The invention belongs to the technical field of drying equipment, and relates to a drying equipment with drying and dehumidifying functions, which is suitable for drying and drying treatment of agricultural and sideline native products such as grain, traditional Chinese medicine, wood, and chemical products. Background technique [0002] my country has a vast land and abundant resources, and its annual output of agricultural and sideline native products such as grain, traditional Chinese medicine, and wood ranks among the top in the world. Due to the high output of various agricultural and sideline native products, and the output is increasing year by year, the drying problem of agricultural and sideline native products has gradually become prominent. Taking grain as an example, my country is the largest grain producer and consumer in the world, with an annual grain output of about 500 million tons. However, according to statistics, my country's grain...

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Problems solved by technology

Repeat the above process many times, and finally realize the drying of the product to be dried; however, in the drying process, due to the need to discharge hot and humid air many times to achieve the purpose of dehumidification, a large amount of hot air containing a certain temperature will be combined during dehumidification. The heat required for drying in the drying device needs to be replenished through the heat source supply device in the subsequent process, resulting in serious waste of heat and poor energy saving effect

In addition, when drying wood, when the humidity in the drying device reaches a certain value and the skylight needs to be opened for dehumidification, since the moisture in the drying device is discharged, the air humidity in the drying device is low, and the agricultural and sideline products to be dried The surface of native products is dried; however, restricted by the moisture gradient of wood, the moisture in the wood is easily locked in the wood, and the moisture inside the wood is not easy to be released, which eventually leads to the drying efficiency of the wood. Low, poor drying effect, even damage, cracks appear on the wood

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