| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sludge dryer that prevents sludge during drying on a belt from solidifying and becoming immobile even in sludge drying for various water content condition at the outlet.SOLUTION: A drying part 51 constituting a sludge dryer 100 includes first-third belt conveyors (16, 17, 18) arranged each with a space in the vertical direction. A first cracking machine 8 is installed at the conveying-direction downstream end of the first belt conveyor 16, while a second cracking machine 9 is installed at the conveying-direction downstream end of the second belt conveyor 17. The operation conditions of the first cracking machine 8 and the second cracking machine 9 are changed by a cracking machine controller 23 according to dry conditions of dewatered sludge.</p> |
