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1. 发明授权

US6019157A Method of regenerating foundry sand 失效
标题翻译：铸造砂再生方法
公开(公告)号：US6019157A
公开(公告)日：2000-02-01
申请号：US836367
申请日：1997-05-13
申请人： Toshitake Kanno , Tomohisa Kawaji
发明人： Toshitake Kanno , Tomohisa Kawaji
IPC分类号： B22C5/00 , B22C5/08 , F27B15/00 , F27B17/00 , B22C25/00 , B22D45/00
CPC分类号： F27B15/00 , B22C5/00 , B22C5/08 , F27B17/00 , F23G2209/24 , F23G2900/50002
摘要： The present invention aims to provide a method of regenerating foundry sand whereby the carbon component adhering to the surface of spent foundry sand and similar substances is combusted efficiently, allowing the foundry sand to be regenerated at low cost. In the present invention, in order to achieve this aim the spent foundry sand with the carbon component adhering to it is placed in a combustion furnace which is connected on one side to a pressure-reducing pump and is open on the other, the pressure-reducing pump is operated to draw air from within the foundry sand and introduce air into it, and the accretion is ignited upwind of the current of air which is being introduced, allowing combustion of the accretion to proceed successively on the downwind side. Foundry sand can thus be recycled at very low cost, simply and reliably because it is allowed to self-combust continuously without any heating or agitation from elsewhere, and because the resin is combusted entirely.
摘要翻译： PCT No.PCT / JP96 / 00081 Sec。 371日期1997年5月13日 102（e）日期1997年5月13日PCT提交1996年1月19日PCT公布。出版物WO97 / 26097 日期1997年7月24日本发明旨在提供一种再生铸造砂的方法，其中附着在废铸造砂表面上的碳成分和类似物质被有效燃烧，从而允许以低成本再生再生铸造砂。在本发明中，为了达到上述目的，将附着有碳成分的废弃的铸造砂放置在燃烧炉中，该燃烧炉的一侧与减压泵连接，另一侧开放，操作减压泵从铸造砂中吸入空气并将空气引入其中，并且吸入被点燃被引入的空气流的上风，从而允许燃料在顺风侧进行燃烧。因此，铸造砂可以以非常低的成本回收，简单可靠，因为允许其在任何地方进行任何加热或搅拌而连续自燃，并且由于树脂完全燃烧。

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