| 摘要 |
PURPOSE:To eliminate the need of sprinkling a herbicide and an insecticide and to obviate the contamination, etc., of underground water and the environment by burning up a living thing such as seeds of adhering weeds, etc., by heating sand. CONSTITUTION:In a rotary drum type continuous sand burning equipment for performing a processing of sand for a site, sand carried continuously to a throw-in port 5 from a belt conveyor, etc., is transferred, while being stirred in a drum drier 2, heated by hot air generated by a burner 4 and a living thing, etc., adhering to sand are burned up. The sand whose burning processing is finished is discharged from a discharge port 6, and carried to a job site by a truck, etc. In order to set a temperature for heating the sand to an optimal temperature (110-140 deg.C), the quantity of oil supplied to the burner 4 is controlled by a temperature sensor 10 attached to the discharge port 6. Also, by an inclination of the drum drier 2 and an internal blade, an optimal passing time of sand is determined to about one - two minutes. |
