A suction pressure roll double doctor blade system is specially designed for dewatering suction pressure rolls in tissue making applications. The system is comprised of a specially designed holder in primary position that augments the natural vacuum created behind the blade tip to expel more water from the roll surface.
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Written by Jerry Vandoros
on September 09, 2014.
Processing strip metal in continuous form is full of challenges. The strip is conveyed over and through numerous rolls, many of which contact the strip and have a direct effect on quality. Adding roll cleaning systems has proven to help maximum run rate, yield and improve product quality in these processing lines.
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Written by Jerry Vandoros
on July 15, 2014.
Kadant has developed and patented roll cleaning solutions for 80 years. During this time, the company developed a wide range of blades for a variety of roll surfaces. Today, the latest roll cleaning technologies feature various pad materials for cleaning and conditioning roll surfaces.
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Written by Jerry Vandoros
on May 20, 2014.
Blind drilled, grooved, and suction drilled rolls are commonly used on presses in the papermaking process. The open areas in these rolls are designed to accept water from the fabric. It is important all the water in these rolls be evacuated before the nip to prevent re-wetting the sheet and to ensure optimum press nip performance. In some cases these rolls rely solely on centrifugal force to evacuate water, but this is often not sufficient, especially when the fabric becomes filled and cannot accept as much water.
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Written by Jerry Vandoros
on April 08, 2014.
Selecting filtration equipment that performs efficiently under the dynamic process conditions of paper machine white water loops can be a challenge for many papermakers. Variability in furnish, paper grades and the operating conditions of the machine, can lead to large swings in the type and amount of solids that must be removed from the white water before it can be reused in the process.
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Written by Pat Long
on March 10, 2014.
