Qualitek SteamTek
On-line Moisture Application
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Paper converting lines manufacturing fine and specialty grades, require a specified moisture level and flat profile. Today, superior grades in moisture level can be achieved using the SteamTek and its unique steam application technology. The SteamTek is a single side/both sides steam applicator to control on-line moisture in cross and machine direction. Our advanced technology enables Qualitek to provide a reliable, high-performance steam actuator with zone spacing down to 75 mm. This, coupled with our durable pneumatic actuators, provides superior benefits for today's papermakers. Advanced Actuator Control Systems Description The compromise between process speed, moisture and sheet stability has been eliminated by increasing the velocity of the steam jets onto the web. |
The SteamTek has two cross-directional headers to make the profiler absolutely drip free. The first steam drying header collects all condensate which might arise from the steam supply and assures that only dry steam reaches the second profiling header. The profiling zone is fully compartmentalized, supplying high-velocity steam to each cross-direction compartment via a separate, uniquely designed actuation valve that allows optimum zone definition and precise control. The spring-loaded profile valves assure immediate steam shut-off at sheetbreak. These proprietary control valves assure finest control of even the smallest amounts of steam (moisture) and prevent excessive steam application. The Qualitek control technology assures sophisticated on-line control with special limits for each different grade. The SteamTek heating system assures that the steam shower is always hot and immediately ready for steam application. Primary material for SteamTek is 1.4571 (316 Ti) stainless steel. A special steam heating system of diffuser plate and dwell zone assures complete heating even during longer stops. Page 1 of 3 |
