公开(公告)号：WO2018027088A1

公开(公告)日：2018-02-08

申请号：PCT/US2017/045410

申请日：2017-08-04

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： DUBEY, Ashish ,  GROZA, Peter, B. ,  NELSON, Christopher, R.

IPC: B28B1/52 ,  B05C3/18 ,  B05C11/02 ,  B28B19/00

Abstract: A slurry feed apparatus for depositing a slurry (36) upon a moving forming web (26) having a direction of travel, including: a headbox (40) mounted transverse to the direction of travel of the moving web (26), having a back wall (354), sidewalls (360, 362), a concave transverse front wall (364), an open top, and an open bottom for directing slurry (36) onto the forming web (26); a moveable dam (353) releasably attached to the back wall (354), a seal (366) attached to a bottom wall of the dam (353); and a headbox support system extending from opposed the sidewalls (360,362). Also disclosed is a continuous process for depositing a uniform layer of a cementitious slurry (36) containing reinforcing fibers from the headbox (40) onto a traveling web (26).

Abstract translation: 一种用于在具有行进方向的移动成形幅材（26）上沉积浆料（36）的浆料供给装置，包括：横向于移动方向安装的流浆箱（40） 具有用于将浆料（36）引导到成形网（26）上的后壁（354），侧壁（360,362），凹形横向前壁（364），开放顶部和开放底部的网状物（26） ; 可释放地连接到后壁354的可移动坝353，连接到坝353的底壁的密封件366; 以及从相对的侧壁（360,362）延伸的流浆箱支撑系统。 还公开了一种用于将包含来自流浆箱（40）的增强纤维的粘结浆料（36）的均匀层沉积到行进网状物（26）上的连续过程。

公开(公告)号：WO2006019456A2

公开(公告)日：2006-02-23

申请号：PCT/US2005/017485

申请日：2005-05-19

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： BOLIND, Michael, L. ,  NELSON, Christopher, R. ,  PETERSEN, Bruce, Lynn ,  PORTER, Michael, J.

IPC: F25D23/12 ,  C04B9/04 ,  C04B11/00 ,  C04B28/14

CPC classification number: C04B11/007

Abstract: The present invention is an apparatus and process for cooling and de-steaming hot calcined stucco used in the production of gypsum boards or bagged plaster. The apparatus is a fluid bed stucco cooler and comprises a cooler housing having a plenum having a stucco inlet and stucco outlet. The stucco cooler includes a rotating disk in the plenum. The rotating disk includes nozzle for spraying fluid, and is attached to a rotable shaft extending from the side of the cooler also includes a fluidization pad and agitator to help to mix the air and the stucco powder to insure fluidization, prevent channeling, and prevent the stucco powder from building up on the various components. The air also forces steam from the hot calcined stucco out through an air outlet located at the top of the stucco cooler, thereby de-steaming the stucco. The stucco flows through the plenum and passes over the cooling coils, thereby cooling the stucco as it reaches the stucco outlet.

Abstract translation: 本发明是用于生产石膏板或袋装石膏中的用于冷却和蒸发热煅烧灰泥的装置和方法。 该设备是流化床灰泥冷却器，并且包括具有灰泥入口和灰泥出口的增压室的冷却器壳体。 灰泥冷却器包括在气室中的旋转盘。 旋转盘包括用于喷射流体的喷嘴，并且附接到从冷却器侧延伸的可旋转轴还包括流化垫和搅拌器，以帮助混合空气和灰泥粉末以确保流化，防止流动，并防止 灰泥粉从各种组成部分组成。 空气还强制来自热煅烧灰泥的蒸汽通过位于灰泥冷却器顶部的空气出口，从而使灰泥脱蒸。 灰泥流经通风室并通过冷却盘管，从而当灰泥到达灰泥出口时冷却灰泥。

公开(公告)号：WO2005091819A3

公开(公告)日：2005-10-06

申请号：PCT/US2005/004797

申请日：2005-02-10

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： BOLIND, Michael, L. ,  PORTER, Michael, J. ,  DUNDAS, Warner, J. ,  NELSON, Christopher, R. ,  DEODHAR, Subhash

IPC: C04B2/10

Abstract: An apparatus for calcining gypsum including a housing having a bottom wall, opentop, and a plurality of side walls extending therebetween. A fixture is located adjacent the open top for receiving gypsum from a source and transferring the gypsum into the housing. At least one burner is connected to the housing and operable for combusting an air-fuel mixture to heat the gypsum. At least one serpentine burner conduit extends from the burner through the housing and terminates through a support floor of the apparatus. The exhaust flow is then directed through a fluidization pad and into the gypsum to further heat the gypsum product. An agitation mechanism is operable to mix the gypsum adjacent the fluidization pad to prevent pockets of gypsum from coagulating and preventing fluidization of the gypsum.

公开(公告)号：WO2008076240A1

公开(公告)日：2008-06-26

申请号：PCT/US2007/025206

申请日：2007-12-10

Applicant: UNITED STATES GYPSUM COMPANY ,  NELSON, Christopher, R.

Inventor： NELSON, Christopher, R.

IPC: B23B13/00

CPC classification number: B28B23/0087 ,  B28B19/0092 ,  B32B2607/00 ,  C04B14/185 ,  C04B28/14 ,  C04B2103/10 ,  C04B2111/0062 ,  C04B2111/52 ,  Y02W30/97 ,  Y10S106/02 ,  C04B20/02 ,  C04B14/043 ,  C04B14/10 ,  C04B14/28 ,  C04B14/365 ,  C04B14/42 ,  C04B18/24 ,  C04B22/147 ,  C04B22/16 ,  C04B24/003 ,  C04B24/383 ,  C04B38/10 ,  C04B2103/67 ,  C04B22/143 ,  C04B24/10 ,  C04B24/38

Abstract: This invention is directed to a method of reducing the water demand of expanded perlite that includes obtaining a vibrating screen supported at an angle and placing expanded perlite on the vibrating screen. The expanded perlite is moved over the screen past toward a burner at a rate that heats the expanded perlite to a temperature sufficient to anneal it. The expanded perlite is then moved away from the burner and allowed to cool. Another embodiment of this invention is directed to a method of making a gypsum product. The method includes annealing perlite by the method described above, then preparing a slurry of calcium sulfate hemihydrate, additives, water and the annealed perlite. The slurry is formed into the shape of the gypsum product and allowed to set. This process is particularly useful in making gypsum panels and acoustical panels that benefit from the use of lightweight materials.

Abstract translation: 本发明涉及一种减少膨胀珍珠岩的用水需求的方法，其包括获得以一定角度支撑的振动筛并将膨胀的珍珠岩放置在振动筛上。 将膨胀的珍珠岩以过度膨胀的珍珠岩加热到足以使其退火的温度的速度向屏幕上方移动。 然后将膨胀的珍珠岩从燃烧器移开并允许冷却。 本发明的另一个实施方案涉及制备石膏产品的方法。 该方法包括通过上述方法退火珍珠岩，然后制备半水合硫酸钙，添加剂，水和退火珍珠岩的浆料。 将该浆料形成为石膏制品的形状并使其固化。 该方法特别适用于从使用轻质材料中获益的石膏板和隔音板。