Evaporator/Concentrator Process
Source: Automation Applications, Inc.
The Evap Process Plus evaporator/concentrator system helps maximize the throughput and efficiency of the
The Evap Process Plus evaporator/concentrator system helps maximize the throughput and efficiency of the evaporator/concentrator process in pulp manufacturing operations. Using the hardware and software tools found in a modern distributed control system, and the instrumentation typical of an evaporator set, the system provides the automatic functionality necessary to reduce process variation and improve evaporator control. The system can be installed on new evaporator sets and as a retrofit to existing evaporator/concentrator processes. Features include:
•Automatic evaporator/concentrator start-up
•Control based on energy balance model
•Coordinated load change (single knob control)
•Automatic vessel boilout (valving must be in place)
•Inlet and outlet liquor sweetening capability
•Complete process data monitoring, trending, and historical logging
•Protection against vessel baking
•Improved unit stability over wide operating range
•1-2% thermal efficiency increase
•Minimized fouling
•±1% liquor solids control
•Reduced water load on recovery boiler
•Full automatic control 95% of the time or greater
•Complete operator acceptance of control system
Automation Applications, Inc., 717 Constitution Drive, Ste. 101, Exton, PA 19341. Tel: 610-458-0500; Fax: 610-458-1905.