As various crops harvest season, as well as the drying effect and operating costs, it is necessary to consider factors such as the temperature difference between the South and the North drying. Such as the coastal areas as much as possible to avoid drying grain in low temperature and humid weather, or the dehydration effect, low productivity, high drying costs. Nearly half of the time of the northern region is below 0 ℃ drying job, the lower the outside temperature, specific heat consumption required relatively large, the cost is higher. Therefore, operating below 0 ℃ in the north of the outer wall of the dryer and hot air pipes should be added to the insulation layer to reduce heat loss. 
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 Zhengzhou City, Cheng Xiang Machinery Co., Ltd. is located in Yong'an Road, Gongyi City, the company's main products are metal grinder, three drum dryer cans grinder, slime drying equipment, fly ash dryer, liquid brick press and other equipment, the company's main website 
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