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The deep processing of agricultural by-products using air energy heat pump dryer Safety and environm

2020-06-28 14:08:52 514

First of all, the application of heat pump drying more widely, coal drying temperature is higher, many materials can not be applied, while the air energy heat pump By controlling the operation of the equipment, the dryer can control the temperature in the drying room between 20-80°C, fully satisfying the Most of the material drying needs. According to the incomplete statistics of Henan Zhonglian Thermal Technology Department, at present, the air energy heat pump dryer can be applied in the following fields: flowers, herbs and vegetables, etc. The products of agriculture, forestry, animal husbandry and fishery, such as fruits and vegetables, fish, meat and poultry, as well as industrial products such as printing, textile, electroplating, ceramics and rubber, and hotels. Cloth, clothing and other service industry fields can be applied to air energy heat pump drying technology.


Secondly, air energy heat pump dryers are environmentally friendly and non-polluting, and the heat pump dryer system materials are placed in the drying room in a completely enclosed space. During the drying process, the drying process is not disturbed by external dust, debris or odors in the air, so it does not It causes secondary pollution of drying materials, especially to some food materials. The traditional coal-fired drying process will produce carbon dioxide, hydrogen sulfide, nitrogen monoxide and other pollutants in the coal-fired process, which will not only have a negative impact on the drying process, but will also have a negative impact on the quality of the foodstuffs. The drying system also pollutes the environment, and because the drying system uses a recirculating air pattern, this also brings in pollutants that are not exhausted. inside the drying room, which in turn damages the dried material.

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Third, save labor costs. The coal-fired drying process uses manual labor to add coal and firewood, and the process is intermittent and continuous, the requirements for labor is also rather High, some materials drying for several days, but also need to manually add coal and firewood in successive shifts. However, the air energy heat pump dryer adopts intelligent one-key operation, when the boot set the equipment operating curve, that is, no need for Manned, only waiting for the drying process to be completed before discharge.






Fourth, the drying quality is better compared to the coal-fired process. The temperature of the coal-fired process is controlled by artificially adding coal and firewood constantly, during which the temperature will be high and low. The temperature is not well controlled, which will cause damage to the drying material, while the air energy heat pump dryer uses PLC control temperature. and humidity, the temperature error can be controlled within the range of 0.5 ℃, to meet the requirements of the drying process for the material, so that Complete a more appropriate drying curve for the material, to ensure color quality, appearance and other aspects of control. Furthermore, the high temperature of coal combustion will cause the loss of useful and useful components in the boring air with the volatilization of moisture.

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Fifth, the drying grade is consistent. In terms of coal-fired drying process, coal-fired hot air furnace emissions into the drying room hot air uniformity and high and low conditions are not consistent, resulting in some Materials in high-temperature areas are dried prematurely, while materials in low-temperature areas are not yet dried, which in turn can cause mold in some materials during the drying process. This leads to the appearance of defective products; and the air energy heat pump dryer uses scientific and reasonable air duct design to ensure that all parts of the drying room. The temperature and air volume are basically the same, so as to ensure the uniformity of material drying.


Sixth, no safety hazards. Coal-fired drying process has the appearance of open flame, and drying temperature and pressure are too high, there are safety hazards. But the air energy heat pump drying technology, equipment temperature and humidity intelligent control, the temperature will not be too high, and no flame and other safety hazards.


Seventh, the air energy heat pump dryer process can recover useful volatile into powder, such as rose dew and other beneficial components evaporated from the material into the drying room, can be recycled, through the air energy heat pump for condensation recovery into water.






Throughout the various advantages of air energy heat pump dryer compared to the coal-fired boiler drying process, especially in the current domestic environmental monitoring efforts so Under the environment of the great, the process of conversion from coal to electricity is in full swing, I believe that in the near future, air energy heat pump dryer technology will be It is strongly promoted and supported by the government. According to the relevant financial department's public announcement, the construction of the agricultural and sideline products drying project of the air heat pump dryer can be partly financially Subsidies, this information can consult the local finance department. According to Henan Zhonglian Thermal Branch sources, air energy heat pump dryers have also been in the process of applying for national agricultural subsidies on the road.


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