Accelerated drainage in sand piles by suction through convoluted perforated pipe

In most sand quarries a wet process is used to obtain sand and separate it from minerals. The final wet product with 20% of moisture content is stockpiled to dry, since it can not be sold unless reaching the required 5-6% of moisture. Quarries keep the sand in the plant for about two weeks to dry. Space limit and delays in production process are the problems quarries are facing these days. Water among sand particles gradually drain through the particles spaces and remains in the base of the pile. A drainage system consisting of a perforated pipe and a suction pump has been designed to remove water out of the sand pile base. The moisture reduction trend is monitored. Results show the system can be an improvement in the drying process