They are stationary vessels with few moving parts, no rotating grid plates, and a simple PID control of the fuel. In this particular system, fuel is combusted in an external air heater, and fine ore is made sure to be in direct contact with hot gases produced by it. The material is immediately incorporated in the hot gases and dried in seconds. Dry ore and spent gas are then separated in a cyclone, which results in the refined product. The system has many parameters that can be modified, depending on the type of material being processed. This includes the control of calciner temperature and atmosphere

• Gas Suspension Calciner, we use cross current gas to material heat transfer with cyclones to separate gas from dry ore. This is a more economically sound way of separating the materials from gas, as it requires minimal power to function