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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1919 edition. Excerpt: ...conditions for long life and high efliciency. The conveyor used in transporting clay from the pit, storage bins or cars to the crusher has severe abrasion to contend with. This abrasion is brought about by the varying sizes of the clay and the often incorrect method of delivering it to the belt with the resultant shifting of the load as it is conveyed along on its course. Clay is often damp, or even wet, especially in the winter months and the conveyor to the crusher should be belting capable of withstanding these adverse conditions. No cheap belting can do this and a low initial first cost is only false economy. Many conveyors distributing clay to various bins do so by means of mechanical trippers subjecting the belt to a reverse flexing strain. The installation of these conveyors is often made without proper regard to the fundamentals of good practice. The material carried should be fed in such a way_that when it strikes the belt, it is traveling in the same direction and at the same velocity as the belt. When the material handled is both coarse and fine, it should be fed over a grating for a short distance before striking the belt. This will let the fine material through to form a bed and protect the belt from the impact of the larger lumps. A carrying roller should be. placed a few inches back of the point where the material strikes the belt, and another about 2 ft. ahead. This provides the necessary support at the point of greatest impact, and at the same time takes advantage of the elasticity of the belt. The material should never be fed to the belt directly over a roller, as the impact of the material is apt to break the roller and is sure to wear the belt excessively. Imperfect alinement, particularly of the return rollers...
This book is a comprehensive, practical guide and reference to today's mechanical conveyor systems. It covers all types of mechanical conveyors, providing in-depth information on their design, function and applications. More than 180 photographs and schematics illustrate details of design and system layout. An introductory chapter provides an understanding of the characteristics of various types of bulk solids, including their conveyability and the types of conveying systems most effective for each. Following chapters examine each of five major categories of conveying systems, with practical details on their design, operation and applications. The final chapter presents basic information on motors and drives for conveying systems, as well as related equipment such as speed reduction systems and conveyor brakes. The emphasis throughout the text is on practical engineering and operating information, with a minimum of theory. The presentation is systematic and organized for easy reference. A very detailed index enables the quick location of needed information. This guide and reference will be useful to all engineers and other personnel involved in the continuous movement of bulk solids. It serves as both a basic introduction and a desk-top reference. The Authors Dr. Fayed is a Professor and Director of the Powder Science & Technology Group at Ryerson Polytechnic University in Toronto. He is also a licensed Consulting Engineer, a Fellow of the American Institute of Chemical Engineers and the Canadian Society of Chemical Engineering. Previously he held positions in process design and development with ICI, Davy McKee, M. W. Kellogg, and Peabody. He has lectured at numerous seminars and workshops at meetings of the American Institute of Chemical Engineers, and other organizations. He has published many papers on particulate technology and is the co-editor of Powder Science & Technology Handbook. Thomas Skocir in an engineer presently with ECO-TEC
Pneumatic conveying systems offer enormous advantages: flexibility in plant layout, automatic operation, easy control and monitoring, and the ability to handle diverse materials, especially dangerous, toxic, or explosive materials. The Handbook of Pneumatic Conveying Engineering provides the most complete, comprehensive reference on all types and s