Laserfiche WebLink
affixed to oppositely rotating cylinders. As the dies mesh, <br /> the biomass agglomerates under pressure. <br /> f) Finished briquettes are collected on an outfeed belt <br /> conveyor and transferred to the briquette shaker screen <br /> (E-4) which removes flashing and broken pieces. These are <br /> returned to the surge bin. The screen outfeed is conveyed <br /> to a bucket elevator which empties the briquettes into the <br /> storehouse. <br /> 2.1.2 Agricultural Biomass Characteristics <br /> The feedstock for the briquetting system will be formed from <br /> the following sources: <br /> o Local biomass, made up of materials such as orchard and <br /> vineyard prunings, straws, and other field crops. <br /> o Local municipal wood materials such as tree prunings and <br /> garden or yard trimmings. <br /> o Local food and fiber processing industry materials such <br /> as almond shells, olive or peach pits, etc. <br /> o Woody commerce stream materials such as discarded <br /> pallets, logging or milling by-products, and forest <br /> slash. <br /> The biomass types received will be seasonal, however straw <br /> bales will be available on an as-needed basis. The biomass <br /> will be chipped in the fields so that at least 90% of the <br /> biomass will be no more than 3 inches in nominal size and is <br /> expected to have a moisture content of 35 to 50% by weight <br /> (see Table 2.1) . To avoid odors due to decomposition, <br /> putrescible feedstocks such as fruit, manure, and municipal <br /> solid wastes will not be accepted. <br /> The briquetting system equipment is designed for a maximum <br /> input rate of 50 tons per hour (50% moisture content - wet <br /> basis) . To obtain the desired ten day supply, a total <br /> volume equivalent to a single pile 5001 by 2501 and 15' in <br /> height will be required. However, this volume will be <br /> segmented into at least four and as many as twelve seperate <br /> piles, depending on the type available at any given time <br /> during the year. Segmentation of the pile is also required <br /> for pile management and fire control . Feedstock pile <br /> management (by front-end loaders) will be on a <br /> first-in/first-out basis to eliminate the potential for <br /> decomposition, hence eliminating odor and energy loss. <br /> 6 <br />