What is rotary frac sand dryer and how does it work?

  Frac sand is a kind of high-purity quartz sand, it plays a crucial role in supporting fractures during the extraction of oil and natural gas, thereby enhancing oil and gas production. To ensure effective fracturing, the fracturing sand must be dry and free of water before use. so it needs a rotary frac sand dryer.

  The rotary frac sand dryer is specially designed for drying frac sand. It uses hot air and the rotation of the drum to evaporate the moisture of sand. Rotary frac sand dryer System mainly consists of a rotary drum, an inlet and outlet feeding system, a hot air furnace, an electronic control system, and a dust removal system. These components work together to complete the whole drying process.

  What is frac sand drying process?

  Wet frac sand (usually with a moisture content of 5% to 10%) is uniformly conveyed to a rotary dryer by a feeding conveyor or hopper, with the drum rotating at a slow and steady speed. As the drum rotates, the lifting blades inside continuously lift the sand, which comes into contact with hot air generated by a hot-air furnace for heat exchange. The high temperature causes the moisture on the surface and inside the sand to evaporate rapidly until it reaches the target moisture content (usually less than 0.5%), after which it is discharged through a discharge device. A dust removal system (cyclone dust collector or bag filter) can collect dust and fine particles in the exhaust gas to prevent dust from being discharged into the air, thus protect the environment.

  What are the advantages of using a rotary dryer to dry frac sand?

  1. High drying efficiency. It can work continuously for 24 hours, with good heat preservation and low heat loss.

  2. Durable. Constructed with heavy-duty steel structure, resistant to corrosion and wear.

  3. Flexible fuel selection. Natural gas, diesel, coal, or biomass fuel can be used.

  4. Customizable capacity. Customized frac sand drying systems ranging from 5 tons to 100 tons per hour. Suitable for sand and gravel processing plants of all sizes.

  The rotary frac sand dryer is a key equipment for sand and gravel processing. If you are interested in this rotary drying system, please contact us.