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The article focuses on the importance of stock preparation assessments in Optical Cable Corp. (OCC) stock preparation systems to reduce fiber loss. It mentions several areas in the OCC system that were assessed through the stock preparation method such as pulping with pulper cleaning, final long fiber slotted fine screening, and coarse screening. It features forms of fibers developed during the process including free fiber, wet strength fiber flakes, and non-wet strength fiber flakes.

Low consistency refining is one of the few elements of a recycling system that can be used to strategically modify the fiber properties and enhance its paper making characteristics. Over the years, a lot of research has been conducted on smaller pilot scale refiners but these machines are generally recognized to be much more efficient than larger commercial scale equipment resulting in uncertainty concerning the scalability of the results to commercial applications. Recently, a commercial prototype refiner capable of lab refiner precision began operation and is currently being used to produce base ply refining for a 750 bdst/d linerboard machine. This paper discusses the importance of refiner alignment, plate edge condition, freeness control, and other fundamentals as they apply to commercial refining. The hope is that these lessons combined with those from previous research using lab scale refining can help the attendee optimize their own systems and controls. [ABSTRACT FROM AUTHOR]

Düşük yoğunlukta öğütme, geri dönüşüm sistemlerinde kullanılan stratejik ekipmanlardan biridir, elyafın özelliklerini değiştirerek kağıt haline gelebilme özelliğini arttırır. Yıllarca, küçük bir öğütme pilot tesisinde birçok araştırma çalışmaları yapıldı. Bu makinelerin genel olarak ticari uygulamalarla ilgili belirsizlik ve ölçeklenebilirlik açısından sonuçları, büyük ticari makinelere nazaran çok daha verimli olduğu görüldü. Kadant Black Clawson küçük laboratuvar ölçütündeki öğütme hassasiyetini ticari boyuttaki öğütme sistemine ekstrapole etme üzerine yıllarca çalışarak birçok teknolojinin patentini almıştır. Yeni ticari prototip öğütücü, laboratuvar öğütme hassaslığında çalışmaya başladı. 750 bdst/d yüzey kağıdı üreten makine için alt kat öğütücüsü olarak kullanıma başlandı. Bu yazıda; öğütücü ayarı, bıçağın konumu, serbestlik kontrolü ve ticari öğütme uygulamasıyla ilgili diğer temel konular tartışılacaktır. Amacımız, laboratuvar boyutundaki öğütücüyü kullanan önceki araştırmalarla beraber bu eğitim sayesinde katılımcının kendi sistemini ve kontrolünü optimize edebilmesidir. [ABSTRACT FROM AUTHOR]

Kadant investigated the screening capabilities of latest generation cylinders offered by major equipment suppliers and evaluated the screening performance of these screen cylinders, including the FibreWall™ screen cylinder. Initial field results of the 4th generation screening cylinders are promising and suggest that the generally accepted screening limits can be extended to smaller stickies sizes. The FibreWall™ screen cylinder is a fabricated wedge wire cylinder made without structural welding or rolling processes. Based on field trials and numerous installations, screening efficiencies achieved by FibreWall™ screen cylinders outperformed major competitive cylinders on removing debris and deformable contaminants (e.g., stickies). FibreWall™ screen cylinders have been shown to reduce the stickies level by two to four times compared to other wedge wire cylinders operating under similar conditions. [ABSTRACT FROM AUTHOR]