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1. 发明授权

US4915730A Process and apparatus for recovery of flue dust 失效
标题翻译：废烟回收工艺及设备
公开(公告)号：US4915730A
公开(公告)日：1990-04-10
申请号：US379691
申请日：1989-07-13
申请人： Allan Elias , Hans W. Rasmussen
发明人： Allan Elias , Hans W. Rasmussen
IPC分类号： C22B7/02
CPC分类号： C22B7/02 , Y02P10/212 , Y10S75/961
摘要： A process and apparatus for the recovery of metals such as silver from phosphate flue dust. The process includes the steps of blending chloride salt and the flue dust to produce a blended material, roasting the blended material in an oxygen bearing atmosphere to oxidize carbon in the blended material producing a gas and to react chloride salt with the metal in the blended material producing a water soluble metallic salt, dissolving the metallic salt in water to produce a solution, filtering the solution to remove solids, and precipitating metals from the filtered solution with the precipitate ready for conventional smelting. The preferred embodiment of the apparatus includes a flue dust hopper and mill and a salt hopper and mill for feeding the dust and salt to a radiant tube dryer and a radiant tube asher for blending and roasting the materials, and a spray chamber at the outlet of the asher for separating solids and gases, where certain of the solids go into solution. The apparatus further includes a filter for removing the undissolved solids, a zinc feeder to add zinc to precipitate the dissolved silver, and a filter for removing the zinc-silver precipitate which is ready for smelting.
摘要翻译：用于从磷酸盐烟道灰中回收金属如银的方法和设备。该方法包括以下步骤：将氯化物盐和烟道粉末混合以制备混合材料，在含氧气氛中焙烧混合材料以氧化混合材料中的碳，产生气体并使氯化物盐与混合材料中的金属反应产生水溶性金属盐，将金属盐溶解在水中以产生溶液，过滤溶液以除去固体，并从析出的溶液中沉淀金属，沉淀物准备用于常规熔炼。该设备的优选实施例包括烟道排料斗和粉碎机以及用于将灰尘和盐送入辐射管干燥器和用于混合和焙烧材料的辐射管灰渣的盐斗和磨机，以及用于混合和焙烧材料的喷射室用于分离固体和气体的固体，其中某些固体进入溶液。该装置还包括用于除去未溶解固体的过滤器，锌加料器以加入锌以沉淀溶解的银，以及用于除去准备进行熔炼的锌 - 银沉淀物的过滤器。

2. 发明授权

US4486360A Carburetor 失效
标题翻译：化油器
公开(公告)号：US4486360A
公开(公告)日：1984-12-04
申请号：US394159
申请日：1982-07-01
申请人： Allan Elias
发明人： Allan Elias
IPC分类号： F02M3/10 , F02M7/22 , F02M7/28 , F02M17/09
CPC分类号： F02M7/22 , F02M17/09 , F02M3/10 , F02M7/28 , Y10T137/87378
摘要： A carburetor with a fuel nozzle in the throat, an upstream butterfly valve, a downstream butterfly valve, a first vacuum actuator for controlling the upstream butterfly valve as a function of vacuum in the throat, and a second vacuum actuator for controlling pre-mix air supply to the fuel nozzle as a function of vacuum downstream from the downstream butterfly valve. A cold start control for disabling the second vacuum actuator for a predetermined period of time at starting to block flow of pre-mix air to the fuel nozzle, including a cold start valve with a thermal responsive bimetal and a resistance heater for timing of the cold start operation. A main fuel control valve with an idle bypass passage therethrough, and means for adjusting the rate of flow through the idle bypass passage.
摘要翻译：在喉部具有燃料喷嘴的化油器，上游蝶阀，下游蝶形阀，用于控制上游蝶形阀作为喉部真空的函数的第一真空致动器，以及用于控制预混合气体的第二真空致动器作为来自下游蝶形阀的下游的真空的燃料喷嘴供应。一种冷启动控制，用于在开始阻止预混合空气到燃料喷嘴的预定时间段期间禁用第二真空致动器，包括具有热响应双金属的冷启动阀和用于冷却定时的电阻加热器开始操作。具有空转旁路通道的主燃料调节阀，以及用于调节通过怠速旁路通道的流量的装置。

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