Most three - return - journey dryers are drying equipment used for drying materials such as sand and river sand. Compared with traditional drying equipment, the energy - saving advantages of the new three - return - journey dryer are very obvious. Under the same conditions, the fuel consumption and power consumption are more than half lower. By increasing the drying area of the material, the drying rate of the moisture in the material accelerates as the contact area between the material and the hot air increases, reducing the percentage of the energy consumed by air heating in the total energy consumption of the dryer. In addition, the drying effect has also been greatly improved, and the heat utilization rate has increased by more than 50%. The river sand enters the middle cylinder of the dryer and runs back and forth three times. Finally, the moisture content is reduced to less than 5%. The qualified rate of river sand drying is improved. The raw materials used in the three - return - journey dryer are mostly river sediment and sand, which makes full use of waste resources and realizes the concept of environmental protection. Zhengzhou Feihong Dryer Manufacturer builds its brand with quality. The company's high - quality three - return - journey dryer products have won wide acclaim from users. We make bold attempts, adhere to innovative production, achieve breakthroughs in practical technologies, and become an important core of development in the new era. We listen to the valuable suggestions and requirements put forward by users, improve the performance of the three - return - journey dryer, always put the interests of customers first, and through continuous independent research and development, based on the latest production technology, create the most popular drying equipment in the Chinese machinery manufacturing industry.