The Kadant Blog

Fluid Handling


Steam Hammer in Continuous Casting of Steel

Continuous casting of steel is the process where molten steel is solidified into a semi-finished billet, bloom, or slab for subsequent rolling in the finishing mills. Effective water cooling of continuous casting rolls is critical. Any drop in water pressure, even from a leaking hose, can result in reduced water flow causing water to remain in the rolls longer than recommended.

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Does your vacuum breaker experience sporadic periods of chattering and spit out condensate?

A newly installed steam injection water heater with a ½” vacuum breaker was experiencing sporadic periods where the vacuum breaker chattered rapidly and “spit out” condensate. Once the water heater reached its set point, the chattering stopped and did not reappear for hours. Chatter will eventually destroy the cage that holds the spring and ball-check in place on the vacuum breaker.

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The Case of the Mysterious X-Dimension

All Kadant Johnson PTX® rotary joints have an X-dimension. The X-dimension is the setup dimension used for the initial rotary joint installation and found on the assembly drawing for the specific rotary joint.

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Steam, Paper Drying, and the Bottom Line

Because energy drives the papermaking process, steam is found in many energy streams in a paper mill. Steam is used to cook fibers for improved sheet strength, heat stock for improved drainage, heat process air for ventilation, heat dryers to dry paper, and selectively heat the web for improved gloss and smoothness.

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Celebrating 100 Years of TAPPI at PaperCon 2015

PaperCon, organized by TAPPI, is the largest annual pulp and paper technical program in the world. This year PaperCon is coming to the Georgia World Congress Center in Atlanta, Georgia. The theme “100 Years: A Century of Achievement” sets the stage for the program topics and speakers. The 100 year TAPPI celebration will be prevalent throughout PaperCon, including the Centennial Celebration Gala and special keynote speaker AfterBurner, featuring a “top gun” fighter pilot.

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