Focus on heavy equipment
When we buy a dryer, we should choose suitable drying equipment according to the characteristics of the materials to be dried. When choosing equipment for drying sand, many users tend to prefer a three-pass sand dryer. So, compared with ordinary single-cylinder dryer equipment, what are the advantages of the three-pass sand dryer?
1. The three-pass sand dryer is made up of three concentric cylinders embedded in each other. In the drying process of sand, two different drying methods, downstream and counter-current, are used to carry out three return circulation drying processes. It is suitable for all kinds of granular materials, and meets the basic requirements of material drying, including a series of material processing processes such as feeding, conveying, dispersing, heat transfer, and discharging, and can also meet the sand processing capacity, dehydration capacity, drying capacity, etc. Basic requirements for the quality of the finished product.
2. When using the three-pass sand dryer to dry the sand, the sand is dried by the inner cylinder, the middle cylinder and the outer cylinder at different temperatures, so that the dried materials are highly dispersed in the hot air, and the critical Low moisture content and fast drying. And the same is convection drying, the drying method is different, the critical moisture content is also different, so the drying rate is also different. In short, the three-pass sand dryer has higher drying efficiency when drying sand.
3. Since the three-layer dryer has better thermal insulation than the traditional rotary drum dryer, the thermal energy resources can be better utilized when the sand is dried, which further reduces the loss of energy. , has the characteristics of high heat source utilization and low energy consumption.
In addition, compared with the single-cylinder drying equipment, the three-pass sand dryer has a small footprint, is faster and more convenient to use, and greatly saves the investment of manpower, material resources and financial resources. It is the best choice for low investment and high efficiency.
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