Simple and smart – lime mud drying just got easier
The new system comes with a smaller footprint, which saves space and investment costs, as well as an updated design which improves maintenance access and provides a safer working environment.
Additionally, ANDRITZ is bringing autonomous white liquor plant technologies into the lime mud feed area with the introduction of various tools to help operators analyze and manage the system remotely, further improving efficiencies.
One of the most important developments to be applied to LimeDry-H is the introduction of an oscillating hollow central shaft which moves back and forth in an axial direction of up to 6 mm. With the fixed scraper, this movement allows the constant renewing of the surface of the lime mud. This feature has provided ANDRITZ the opportunity to modify the CPR (Continuous Pre-coat Renewal) system by eliminating the low-pressure wash which affects the quality of the lime mud. High-pressure washing remains to ensure the continuous renewal of the precoat and efficient cloth wash. All this results in a more simplified process which ensures more stable dryness and feed of lime mud to the lime kiln.