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Achieve Precise Temperature on Start-up for Grade Changes with Your Paper Machine by Replacing Your Sparge System

The paper machine would run cold after shutdowns or wash-up grade changes. The current solution was to dump whitewater and refill with heated fresh water to bring the machine up to temperature quickly. The mill desired a better method to their 135°F target temp quickly.

The solution for this application included using a K413 Hydroheater® to heat the tank of water in a recirculation without a pump configuration.

Water heating improvements are realized with the precise temperature maintained at 135°F [57°C] and they can startup the machine without having to dump water. Although installed for start-up heating, the heater has been in constant operation, running 24 hours a day and 7 days a week since 2006. This has greatly reduced the time it takes to change over paper
grades by assuring the paper machine will be at temperature at start-up. A large improvement to the paper machine drainage has also been realized by maintaining an ideal temperature throughout the grade run.

Operating Conditions:

Click here to download the Application Brief

Unlike heat exchangers or spargers, the Hydroheater is designed only for your process conditions and unique application. We need to know a few things about your conditions, such as temperature range, steam pressure, and flow rates to size a heater specifically for you. When you click on our application data sheet and fill in the information, we will contact you within one business day. After an initial conversation with a sales representative or one of our engineers, we will then provide you with a custom quote for the Hydroheater best suited for your process.

Yes, I want to save energy and have more control using direct steam injection. Please complete the Application Data Sheet which helps us understand your process conditions such as fluid density, flow rates and temperature parameters.