According to the internal structure and drying process of the sand dryer, the sand dryer can be divided into a single-cylinder dryer and a three-cylinder dryer. So what is the difference between these two dryers?
First of all, the single drum sand and gravel dryer, as the name suggests, is a single drum. After the sand is dried, it occupies a large area of land due to the long drum. The three-cylinder sand dryer adopts three concentric cylinders, which are reasonably combined according to specific parameters. Compared with the single-cylinder dryer, the cylinder body is shortened by two-thirds, which greatly reduces the area occupied. Invest in infrastructure for users.
Secondly, in the process of dewatering and drying the sand with a single-cylinder sand dryer, the sealing performance of the device is not as good as that of a three-cylinder dryer, causing serious heat loss on the surface of the cylinder. As a result, thermal energy resources are wasted and thermal efficiency is reduced. Fuel input costs will increase. Since the three-cylinder sand dryer has three cylinders nested together, the inner cylinder and the materials in the inner cylinder receive the heat of the cylinder while being affected by the heat of other cylinders. Therefore, the possibility of heat loss through the cylinder is reduced, the thermal efficiency is greatly improved, and the drying speed of the sand is increased.
Thirdly, due to the simple structure of the single-cylinder dry sand machine, the amount of smoke and dust generated during use is relatively large, which brings a heavy burden to the dry sand staff. The three-cylinder sand dryer effectively uses the dust collector to make reasonable improvements to reduce the possibility of dust overflow and effectively ensure the cleanliness of the sand drying environment.
After that, three-cylinder sand dryers are more expensive in terms of investment than single-cylinder sand dryers because they are more complicated to process than single-cylinder dryers and require an overall drying production line layout.
Therefore, when selecting the type of sand dryer, it is necessary to select the appropriate dryer type according to different production requirements and cost budgets, so as to achieve the goal of low-cost and efficient production.
