Patent ID: 6837609

Claim:
A soil modifying apparatus, comprising: target processing amount setting means for setting a target processing amount per hour of a raw soil material; actual raw soil material amount detecting means for detecting an actual processing amount of the raw soil material in time sequence; actual raw soil material amount calculating means for calculating an actual processing amount per hour of the raw soil material from a detection value of said actual raw soil material amount detecting means; raw soil material feeder speed detecting means for detecting a speed of a raw soil material feeder; predicted raw soil material amount calculating means for calculating a predicted supply amount per hour of the raw soil material based on the detected raw soil material feeder speed; first comparing means for comparing the calculated actual processing amount per hour of the raw soil material, and the calculated predicted supply amount as a target processing amount per hour of the raw soil material; and raw soil material feeder speed correcting means for correcting a target value of the raw soil material feeder speed obtained from the set target processing amount per hour of the raw soil material, based on a comparison result of said first comparing means, and controlling the speed of said raw soil material feeder according to the corrected target value.