Dryer exhaust air volume, high concentrations of dust, moisture large, dew point, easy to condensation, high point of discharge, a wide range of pollution, is the difficulty of the dust removal technology. Dryer tail exhaust with factory conditions related to individual enterprises for drying many materials, production changes, open frequent downtime, fluctuation range of big ...

In most parts of China, postpartum grain moisture is generally higher than the safe moisture (14%), is not conducive to storage, storage and use of natural precipitation, not only time-consuming, laborious, accounting for space, but also difficult to achieve the purpose of the desired effect. So many food banks are using artificial rainfall ...

Drying process is a typical multivariable, large inertia, highly nonlinear complex systems, in line with the establishment of an ideal mathematical model of the actual drying process is very difficult; and modeling to spend a lot of energy, and sometimes even impossible. Usually facilitate research to simplify the modeling conditions ...

Microwave heating in the 1970s, China's electronics industry subordinate units established Institute of Applied microwave, promote the microwave heating technology. Some military enterprises successfully developed 5kw, 10kw, 20kw magnetron, klystron, trial 20kw, 40kw industrial microwave ovens, wood, food, pharmaceutical, chemical, ceramics and other industrial applications sector, to obtain a higher economic efficiency

This paper discussed the powder dry, granulated powders, granules were dried and other technical characteristics of view, trying to scientifically establish a new pre-dried powder - granulation - Microwave Drying process route. The material starts drying phase constant speed, so that most of the moisture removal material, the material becomes less than 20% moisture content (wet basis). The low moisture content of the material pressure granulation, this time not only easy granulation, granulation rate, and particle size uniformity, high strength. Low moisture content of the particulate material, and dried by microwave heating. Microwave heating characteristics of the particles inside moisture quickly ruled out, thereby obtaining a qualified moisture requirements of the product.

Grain drying The basic objective is maintaining the stability of the drying process at the lowest cost and power consumption of the drying grain get the best drying quality. Grain drying process is a typical nonlinear, multivariable, large lag, unsteady heat and mass transfer parameters associated coupling, food itself is a complex biochemical substances ...

Food is usually a moisture content of 30% to 97%, the use of microwave drying or microwave drying strengthen food has broad application prospects ...