公开(公告)号：US4863485A

公开(公告)日：1989-09-05

申请号：US287643

申请日：1988-12-20

申请人： Hans G. Scafer ,  Wolfgang Cieslik ,  Heinz Opdenwinkel ,  Axel Vogts ,  Gunter Poppel ,  Horst Schurmann

发明人： Hans G. Scafer ,  Wolfgang Cieslik ,  Heinz Opdenwinkel ,  Axel Vogts ,  Gunter Poppel ,  Horst Schurmann

IPC分类号： C10L5/14 ,  C10L5/10 ,  C10L9/10

CPC分类号： C10L5/10 ,  Y02E50/30

摘要： The process is disclosed for the manufacture of briquettes in which an essentially solid fuel material such as hard coal, coke, soft coal, charcoal or more particularly, anthracite, and other coals of low volatility are mixed in the presence of polyvinyl alcohol and calcium oxide and/or magnesium oxide, as well as at least 1 percent by weight of water, and formed into briquettes. The calcium oxide is preferably caustic lime. The polyvinyl alcohol is preferably applied as an aqueous solution. The briquettes so formed are characterized by high initial crush resistance, i.e. the solidity shortly after the briquetting process, by high abrasion resistance, easy handling and, in the event that anthracite is employed, a carbon tar index of less than 50. The waste gases emitted during the burning of these briquettes have a distinctly reduced SO.sub.2 content.

摘要翻译： 公开了用于制造压块的方法，其中在聚乙烯醇和氧化钙的存在下将基本上固体的燃料材料如硬煤，焦炭，软煤，木炭或更特别是无烟煤和其他低挥发性煤混合 和/或氧化镁，以及至少1重量％的水，并形成团块。 氧化钙优选为苛性石灰。 聚乙烯醇优选作为水溶液使用。 如此形成的团块的特征在于具有高的初始抗压性，即压块过程后不久的坚固性，高耐磨性，易于处理，并且在使用无烟煤的情况下，碳焦油指数小于50.废气 在这些团块燃烧过程中排出的SO2含量明显降低。