Effect of quartz sand dryer drum length and speed on drying efficiency

　　Drum drying equipment is commonly used for quartz sand drying. Drum drying equipment is a mature drying equipment with a rational structure, easy operation, and large processing capacity. It can effectively dry and dredge river sand, crane sand, yellow sand, and various artificial sands. With the country's prosperity and social development in recent years, the sales of river sand dryers have been steadily increasing. They are widely used in engineering construction, bridge construction, and road construction. Due to their unique characteristics, river sand dryers are also very popular among users. Many users of quartz sand dryers are unaware of how the length and speed of the new quartz sand dryer drum affect drying efficiency. Here, we will introduce some new sand dryers, hoping to be helpful.

　　The principle of a quartz sand dryer is that sand enters the feed end of the sand dryer, which is a slightly inclined rotating cylinder. As the cylinder rotates, the sand moves to the lower end under the action of gravity. As the wet sand moves forward in the cylinder, it is directly or indirectly heated by hot air, causing a large amount of moisture in the wet sand to evaporate, drying it. The finished dry sand is then discharged from the discharge outlet. During this process, the length and speed of the quartz sand dryer jointly determine the drying time of the sand in the quartz sand dryer.

　　The dryer drum length directly affects drying capacity. The longer the dryer drum, the higher the capacity. However, the dryer drum length should not be extended indefinitely. First, the site size must be considered. The heat loss associated with the length also increases, which in turn increases fuel consumption. Therefore, when selecting a drum length, longer is not always the correct choice. When contacting the manufacturer, be sure to clearly explain your situation so that the technician can easily configure an appropriate drying drum length.

　　The speed of the quartz sand dryer drum determines the drying time of the sand in the drum. A higher speed shortens the time the sand remains in the drum, which reduces the drying time. If the sand has a low moisture content, the drum speed can be increased while ensuring the sand is dried to the required moisture content, effectively improving efficiency. If the sand has a high moisture content, the drum speed can be reduced to increase the drying time in the drum so that the sand reaches the required moisture content after drying.