Lime Mud Washers
Lime mud pumped from the white liquor clarifiers still contains a significant amount of white liquor. This liquor must be removed from the mud before the mud is sent to the kiln, or it will cause ring formation in the kiln and increased sulfur emissions. In order to remove the white liquor, the mud is mixed with water and filtrates, and then resettled in a sedimentation clarifier. This module will identify and describe the major components of a lime mud washer.
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Course Details
Learning Objectives
• Identify and describe the major components of a lime mud washer
• Describe the purpose and operation of a lime mud washer
• Identify and describe the typical process flows in a lime mud washer
• Describe the negative impacts of improperly washed/filtered lime mud
• Identify key safety considerations when working around a lime mud washer
Specs
Frequently Asked Questions
Why does lime mud need to be washed?
Where does lime mud come from?
What is the principle behind a lime mud washer?
What can happen if mud is not properly washed?
What is weak wash?
Sample Video Transcript
The diluted mud enters the clarifier at the top and is discharged through a center feedwell. This semi-enclosed area provides a small mixing and buffer zone, slows the flow and evenly distributes the incoming mixture into the clarifier.
