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1. 发明授权

US06494609B1 Slurry mixer outlet 有权
标题翻译：泥浆搅拌机出口
公开(公告)号：US06494609B1
公开(公告)日：2002-12-17
申请号：US09905553
申请日：2001-07-16
申请人： James R. Wittbold , Amit P. Duvedi , Mark K. Hemphill , Wayne A. Fleming , Wilford Gary Pittman , Kirk S. Moore , Christopher Nelson
发明人： James R. Wittbold , Amit P. Duvedi , Mark K. Hemphill , Wayne A. Fleming , Wilford Gary Pittman , Kirk S. Moore , Christopher Nelson
IPC分类号： B01F716
CPC分类号： B01F15/0266 , B01F3/1221 , B01F7/163 , B01F2005/0028 , B01F2215/0047 , B28B19/0092 , B28C5/16 , B28C5/386 , B28C7/16
摘要： An apparatus and method for delivering an additive-enhanced slurry for use in making gypsum wallboard, and configured for connection to a centrifugal mixer with a tangential discharge outlet, includes a conduit having a main inlet in slurry receiving communication with the mixer outlet and extending to a discharge spout for discharging the slurry proximate a wallboard forming area. At least one volume restrictor is associated with the conduit for creating back pressure between the volume restrictor and the outlet for keeping the mixer fill, and at least one pressure reducer associated with the discharge spout and configured for reducing the pressure of the slurry dispensed from the discharge spout. The apparatus is configured for maintaining a generally laminar flow from the mixer outlet to the discharge spout.
摘要翻译：一种用于输送用于制造石膏墙板的添加剂增强浆料并且被配置为连接到具有切向排出口的离心式混合器的装置和方法，包括导管，其具有与混合器出口连通的浆料中的主入口并延伸到用于在靠近墙板形成区域排出浆料的排出口。至少一个容积限制器与用于在容积限制器和出口之间产生用于保持混合器填充物的回压的管道相关联，以及至少一个减压器，其与排放喷口相关联并且构造成用于降低从排放口。该装置被配置为保持从混合器出口到排放口的大致层流。

2. 发明授权

US5743728A Method and system for multi-stage calcining of gypsum to produce an anhydrite product 失效
标题翻译：用于多阶段煅烧石膏以生产无水石膏产品的方法和系统
公开(公告)号：US5743728A
公开(公告)日：1998-04-28
申请号：US515265
申请日：1995-08-15
申请人： Michael L. Cloud , Kirk S. Moore
发明人： Michael L. Cloud , Kirk S. Moore
IPC分类号： C04B11/05 , C04B11/028 , F27B15/00 , F27B15/10 , F27B14/00
CPC分类号： F28D13/00 , C04B11/028 , F27B15/00 , F27B15/10 , F28D7/024
摘要： A method and system for calcining gypsum to recover gypsum in a form consisting essentially of calcium sulfate anhydrite is disclosed. The method includes the steps of feeding the ground gypsum material into a first kettle and heating the ground gypsum in the first kettle to the first predetermined temperature. The first predetermined temperature is preferably below 400.degree. F. so that the gypsum will still contain a sufficient amount of chemically-combined water so that it will self-fluidize by release of water vapor so that it will flow through the apparatus. The ground gypsum is then overflowed through at least one subsequent stage and heated to a final predetermined temperature to produce an anhydrite product. To produce insoluble calcium anhydrite or dead burn material, the final predetermined temperature is greater than 900.degree. F. and preferably within the range of about 900.degree. F.-1300.degree. F. In the subsequent stages, the gypsum powder is heated and simultaneously fluidized with a fluidizing media, preferably air, so that the ground gypsum will flow through the apparatus. In the preferred embodiment, the ground gypsum is fluidized by a plurality of mixing blades having air injection pipes along their breaking edges for injecting air into the gypsum and a plurality of air injection nozzles disposed radially about a periphery of the kettles. The fluidization of the ground gypsum in the subsequent stages ensures that it will flow through the apparatus for production of an anhydrite product.
摘要翻译：公开了一种煅烧石膏以以基本上由硫酸钙无水石膏组成的形式回收石膏的方法和系统。该方法包括将研磨的石膏材料进料到第一釜中并将第一釜中的磨碎石膏加热到第一预定温度的步骤。第一预定温度优选低于400°F，使得石膏仍然将含有足够量的化学组合的水，使得其将通过释放水蒸气而自流化，使其流过设备。然后将磨碎的石膏通过至少一个后续阶段溢出并加热至最终预定温度以产生无水石膏产品。为了生产不溶性无水硬石膏或死火材料，最终预定温度大于900°F，优选在约900°F-1300°F范围内。在随后的阶段，将石膏粉末加热并同时流化具有流化介质，优选空气，使得磨碎的石膏将流过设备。在优选实施例中，磨碎的石膏通过多个具有沿其断裂边缘的空气喷射管的混合叶片流化，用于将空气喷入石膏中，并且多个空气注射喷嘴沿着水壶周边辐射放置。在随后的阶段，磨碎的石膏的流化将确保其流过设备以生产无水石膏产品。

3. 发明授权

US5954497A Method for multi-stage calcining of gypsum to produce an anhydrite product 失效
标题翻译：多阶段煅烧石膏以生产无水石膏产品的方法
公开(公告)号：US5954497A
公开(公告)日：1999-09-21
申请号：US5323
申请日：1998-01-09
申请人： Michael L. Cloud , Kirk S. Moore
发明人： Michael L. Cloud , Kirk S. Moore
IPC分类号： C04B11/05 , C04B11/028 , F27B15/00 , F27B15/10 , F27B14/08
CPC分类号： F28D13/00 , C04B11/028 , F27B15/00 , F27B15/10 , F28D7/024
摘要： A method and system for calcining gypsum to recover gypsum in a form consisting essentially of calcium sulfate anhydrite is disclosed. The method includes the steps of feeding the ground gypsum material into a first kettle and heating the ground gypsum in the first kettle to the first predetermined temperature. The first predetermined temperature is preferably below 400.degree. F. so that the gypsum will still contain a sufficient amount of chemically-combined water so that it will self-fluidize by release of water vapor so that it will flow through the apparatus. The ground gypsum is then overflowed through at least one subsequent stage and heated to a final predetermined temperature to produce an anhydrite product. To produce insoluble calcium anhydrite or dead burn material, the final predetermined temperature is greater than 900.degree. F. and preferably within the range of about 900.degree. F.-1300.degree. F. In the subsequent stages, the gypsum powder is heated and simultaneously fluidized with a fluidizing media, preferably air, so that the ground gypsum will flow through the apparatus. In the preferred embodiment, the ground gypsum is fluidized by a plurality of mixing blades having air injection pipes along their breaking edges for injecting air into the gypsum and a plurality of air injection nozzles disposed radially about a periphery of the kettles. The fluidization of the ground gypsum in the subsequent stages ensures that it will flow through the apparatus for production of an anhydrite product.
摘要翻译：公开了一种煅烧石膏以以基本上由硫酸钙无水石膏组成的形式回收石膏的方法和系统。该方法包括将研磨的石膏材料进料到第一釜中并将第一釜中的磨碎石膏加热到第一预定温度的步骤。第一预定温度优选低于400°F，使得石膏仍然将含有足够量的化学组合的水，使得其将通过释放水蒸气而自流化，使其流过设备。然后将磨碎的石膏通过至少一个后续阶段溢出并加热至最终预定温度以产生无水石膏产品。为了生产不溶性无水硬石膏或死火材料，最终预定温度大于900°F，优选在约900°F-1300°F范围内。在随后的阶段，将石膏粉末加热并同时流化具有流化介质，优选空气，使得磨碎的石膏将流过设备。在优选实施例中，磨碎的石膏通过多个具有沿其断裂边缘的空气喷射管的混合叶片流化，用于将空气喷入石膏中，并且多个空气注射喷嘴沿着水壶周边辐射放置。在随后的阶段，磨碎的石膏的流化将确保其流过设备以生产无水石膏产品。

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