The invention discloses a quality adjusting method and device and is characterized in that a material after quality adjusting layer treatment enters a quality keeping layer, the material is further mixed with steam for quality adjusting and quality keeping in the quality keeping layer, a quality keeping layer rotor operates forward and backward, the material flows back and forth in a quality keeping
machine body, enough temperature rising quality adjusting time is obtained, the temperature rises rapidly under the
joint action of the heating and temperature keeping
system and the steam, after the temperature rises to the preset value, and the material is discharged to the downstream for
granulation. The device comprises a pre-quality-adjusting layer, the quality keeping layer, a pre-quality-adjusting driving
system, the heating and temperature keeping
system, a pre-quality-adjusting rotor, a pre-quality-adjusting
machine body, a steam adding system, a quality keeping driving system, a quality keeping rotor, the quality keeping
machine body, a material temperature sensor and a temperature sensor. According to the quality adjusting method and device, the
discharge of machine end materials can be reduced in the starting-up process, the production process
layout is simplified, the
raw material utilization rate and the feed safety and
sanitation are improved, the granulator
energy consumption is reduced, and the labor intensity of the workers is reduced.