Retrofits for black liquor evaporators

In case the capacity of a craft mill is limited by the evaporator or recovery boiler performance, a modernization or retrofit of the black liquor evaporator can eliminate the bottleneck.

The starting point is always a thorough analysis of the existing operating data and equipment.  With the help of our simulation program and operating data we first calculate the actual heat transfer co-efficient for each piece of equipment and then make a proposal for larger throughput and higher dry substance in the concentrate.

Benefits

  • Rinheat up-flow concentrator makes higher DS possible
  • Higher capacity with MVR pre-evaporators

Key features

  • Thorough analysis of the operating data with our advanced simulating program
  • Alternative solutions for higher capacity and higher DS
  • Realization with Rinheat’s proprietary evaporator effects and concentrators

Options

  • Retrofitting new heat transfer surface into an existing body
  • Improving the inert gas removal system