Direct Steam Injection Heating for Pulp Processing & Paper Production

Direct steam injection heating utilizing the Hydroheater

Whether you are in the paper and pulp industry or any other industry, Hydro-Thermal’s heating solutions will assure you saving energy costs, reducing maintenance down-time, and more. Our direct steam injection heating solutions are 15-30% more efficient than heat exchangers or spargers. Using 100% of the steam’s energy and decreasing your maintenance and production cost, Hydro-Thermal’s Hydroheaters are an easy choice. 

With instantaneous heating when you need it, our products are ideal for anywhere maintaining a precise temperature is critical. Our most popular heating applications for paper and pulp production include:

WHITEWATER CHEST OR SILO HEATING:

WHITEWATER PROCESS STREAM HEATING (NON-VENTURI PUMPING)

OTHER FRESH WATER USES AROUND WET END

• Improve production efficiency and sheet quality. Felt and wire showers benefit from tempered water for improved cleaning and elimination of temperature stratification. Head box and other roll showers benefit from heating/tempering water to match whitewater temperature. By having uniform temperature that matches whitewater temperature, there is a consistent temperature profile on the machine. In turn, the machine runs more consistently which increases production quality. 
• Hydro-Thermal technology can heat whitewater or process water used on the paper machine. Maintaining or increasing water temperature (ideally 120-140˚F) can help increase machine speed. These higher temperatures can improve drainage on the wet end of the paper machine, as well as improve water removal in the press section of the machine. Another added benefit is the reduction in bacterial growth.
• Click here to learn more about fresh water uses around the wet end:

REPULPER/RECYCLED FIBER HEATING

• Reduce pulping time or eliminate the need to sparge into pulpers during operation by preheating fill water for repulpers. Improved contaminant removal and enhanced dewatering are also benefits.
• Most repulpers require heat to break up bails and wastepaper. Preheating is more efficient, because it will improve repulping time while avoiding direct sparging into the repulper. Water heating is at the core of Hydro-Thermal’s applications, because precise and consistent temperature is a crucial part of manufacturing especially in the processing of paper. 
• Click here for a case study on recycled fiber heating.

HYDROHEATER STARCH COOKING

• Many types of starches can be processed with inline cooking for size press, wet end, and coating starches/slurries. Complete systems can incorporate automated flush and preheat cycles, cooked and final starch solids control, hold tube retention time, and back pressure control.
• Hydro-Thermal’s technology allows paper manufacturers to use continuous or semi-batch processing compared to the traditionally used batch cooking. Exact temperature produces a quality starch cook that provides uniform and consistent results. Ultimately, sheet properties, coating quality, and surface quality are all improved.
• Learn more about Industrial Starch Cooking using Hydroheaters