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公开(公告)号：US6061908A
公开(公告)日：2000-05-16
申请号：US928311
申请日：1997-09-12
申请人： Brian P. DeMarey , James F. Durant , Martin J. Kozlak , Robert S. Prairie , Reed S. C. Rogers , Anthony J. Rooney , Gregory R. Strich
发明人： Brian P. DeMarey , James F. Durant , Martin J. Kozlak , Robert S. Prairie , Reed S. C. Rogers , Anthony J. Rooney , Gregory R. Strich
CPC分类号： B02C15/005 , Y10T29/4956
摘要： An energy-efficient grinding roll for employment in a pulverizer operative for effecting the pulverization of solid material therein. The energy-efficient grinding roll includes a body portion formed of a first type of material, an external surface formed of a second type of material, and tread-like means of preestablished dimensions and preestablished spacing provide on the external surface such that the energy-efficient grinding roll is capable of achieving as much as a 15% reduction in the energy required to pulverize solid material when compared with the use of standard grinding rolls.
摘要翻译： 一种用于粉碎机的能量高效的研磨辊，其用于在其中实现固体材料的粉碎。 能量高效的研磨辊包括由第一类型的材料形成的主体部分，由第二类型的材料形成的外表面，以及预先设定的尺寸和预先设置的间隔的胎面状装置提供在外表面上，使得能量 - 与使用标准研磨辊相比，高效的研磨辊能够实现粉碎固体材料所需能量的15％的降低。
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公开(公告)号：US5875977A
公开(公告)日：1999-03-02
申请号：US076986
申请日：1998-05-13
IPC分类号： B02C25/00
CPC分类号： B02C25/00 , F23K2201/101
摘要： A method of controlling the operation of the bowl mills in a coal-fired steam generating power plant is disclosed; and in particular a method of controlling the operation of such bowl mills such that the furnace of a steam generating power plant can more rapidly respond to abrupt changes in the demands placed upon the output of the furnace due to abrupt changes in the power requirements of an electric power grid.
摘要翻译： 公开了一种控制燃煤蒸汽发电厂中的碗磨机的操作的方法; 特别是一种控制这种碗式磨机的操作的方法，使得蒸汽发生设备的炉子能够更快速地响应由于炉子的功率需求的突然变化而对炉子输出的要求的突然变化 电网。
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公开(公告)号：US5976224A
公开(公告)日：1999-11-02
申请号：US72479
申请日：1998-05-04
申请人： James F. Durant , Glen D. Jukkola , Michael S. McCartney , Nicole M. Phyfe , Reed S. C. Rogers , Gregory R. Strich
发明人： James F. Durant , Glen D. Jukkola , Michael S. McCartney , Nicole M. Phyfe , Reed S. C. Rogers , Gregory R. Strich
摘要： A method of separating unburned Carbon, as particulate matter, from the flyash produced as a result of the combustion process occurring in a pulverized-coal fired steam generating power plant is disclosed. More particularly the invention separates the flyash into a coarse product group and a fine product group by utilizing the differences in specific gravity between the Carbon particles and remaining flyash as well as utilization of the dynamic classification characteristics of a rotary classifier to effect the separation whereby at least one of the two product groups comprises a relatively low weight percentage of unburned Carbon while yet comprising a relatively high percentage of the total mass of product recovered after separation.
摘要翻译： 公开了将未燃烧的碳作为颗粒物质从由粉煤燃烧的蒸汽发电厂中发生的燃烧过程产生的飞灰分离的方法。 更具体地，本发明通过利用碳颗粒和剩余的粉煤灰之间的比重差异以及利用旋转分级机的动态分级特性来实现分离，从而将粉煤灰分成粗产物组和精细产物组 两个产品组中的至少一个包括相对较低重量百分比的未燃烧碳，同时还包括分离后回收的产品总质量的相对高的百分比。
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公开(公告)号：US5799592A
公开(公告)日：1998-09-01
申请号：US774153
申请日：1996-12-26
IPC分类号： F23K1/00
CPC分类号： F23K1/00 , F23K2201/10
摘要： An exhauster assembly for a solid fuel pulverizer has an exhauster housing defining an inlet opening. A fan rotatably mounts in the exhauster housing and a duct defining an air stream flow path is in fluid connection with the inlet opening. An inlet guide vane assembly is positioned in the duct adjacent the inlet opening. The inlet guide vane assembly has a plurality of first and second guide vanes defining a plurality of the flow channels generally parallel the air stream flow path. The first and second guide vanes are generally planar and arranged generally orthogonally to each other in cross section.
摘要翻译： 用于固体燃料粉碎机的排气组件具有限定入口的排气器壳体。 风扇可旋转地安装在排气机壳体中，并且限定空气流流动路径的管道与入口开口流体连通。 入口引导叶片组件位于与入口相邻的管道中。 入口引导叶片组件具有多个第一和第二导向叶片，其限定大致平行于空气流流动路径的多个流动通道。 第一和第二导叶通常是平面的，并且横截面大致垂直于彼此。
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5.发明授权Method and apparatus for uprating and controlling a solid fuel pulverized and exhauster system for a steam generator 有权一种用于蒸汽发生器固体燃料粉碎和排气系统升级和控制的方法和装置公开(公告)号：US06564727B1
公开(公告)日：2003-05-20
申请号：US10057230
申请日：2002-01-25
IPC分类号： F23B700
CPC分类号： F23K3/02 , F23K2201/1006 , F23K2201/101 , F23K2203/201
摘要： A method for retrofitting a solid fuel pulverizer and exhauster system includes replacing the bowl drive motor 38 with a new drive motor which is operable to drivingly rotate the bowl 12 at the pre-retrofit speed but which provides relatively more horsepower than the replaced bowl drive motor 38 and replacing the original exhauster fan coupling with a new exhauster fan gear set 46, 48 which effects rotation of the exhauster fan 30 at a relatively higher rotational speed than the pre-retrofit speed. A solid fuel pulverizer and exhauster system of the present invention acting in cooperative association with a fuel-fired steam generating power plant includes an exhauster fan transmission assembly 50, 52 operable to translate the rotation of the drive shaft 54 of the exhauster fan drive motor 44 through ninety (90) degrees to thereby effect rotation of the fan by the exhauster fan drive motor 44.
摘要翻译： 用于改装固体燃料粉碎机和排气系统的方法包括用新的驱动马达代替碗驱动马达38，该驱动马达可操作以以改进前的速度驱动地转动碗12，但是比替换的碗驱动马达提供相对更多的马力 并且用新的排风扇风扇齿轮组46,48代替原来的排风扇风扇联轴器，其以比预更新速度更高的转速实现排风扇30的旋转。 本发明的固体燃料粉碎机和排气系统与燃料蒸汽发电厂协调联动，包括排气扇传动组件50,52，其可操作以平移排风扇驱动电动机44的驱动轴54的旋转 直到九十（90）度，从而通过排风扇驱动电动机44来实现风扇的旋转。
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公开(公告)号：US5492279A
公开(公告)日：1996-02-20
申请号：US313959
申请日：1994-09-28
申请人： Gregory R. Strich
发明人： Gregory R. Strich
CPC分类号： B02C15/04
摘要： A pulverizer for crushing coal for use in a combustion process includes a bowl shaped body, a roller dimensioned and configured for contact with at least a portion of the bowl shaped body, apparatus for causing relative movement between the bowl shaped body and the roller; and apparatus for biasing the roller against the bowl shaped body, the apparatus for biasing including a spring assemblyat includes a first spring and a second spring. The apparatus means for biasing including apparatus allowing initial compression of the first spring before the second spring is compressed. In some forms of the invention the first spring and the second spring are coil springs and the first and second springs are compressed simultaneously after initial compression of the first spring. In other forms of the invention the first and second springs are disposed in coaxial relationship with the second spring overlapping an axial part of the first spring. In this form of the invention the second spring has a free axial length that is less than the free axial length of the first spring. The apparatus allowing initial compression may include a washer disposed at one axial extremity of the first spring and a spring seat disposed at a second axial extremity of the first spring. The apparatus may include a shaft extending between the spring retainer and the washer, the shaft may include apparatus for preloading the first spring without preloading the second spring. The first spring and the second spring may be disposed in substantially coaxial substantially end abutting relationship and the apparatus may include a floating plate disposed intermediate the first and second springs. A generally sleeve shaped member may surround at least an axial portion of the first spring and the first spring may have a lower spring constant than the second spring. The generally sleeve shape member may extend around a portion of the axial extent of the first spring and the sleeve shape member may be dimensioned and configured for engagement with the floating plate after initial compression of the first spring whereby after contact of the sleeve shape member with the floating plate the first spring will not compress axially any further. In some forms of the invention the apparatus includes apparatus for compressing the first and second springs simultaneously whereby both the first and second springs are preloaded.
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公开(公告)号：US6024311A
公开(公告)日：2000-02-15
申请号：US217102
申请日：1998-12-21
CPC分类号： B02C15/04
摘要： A pulverizer shaft rotation support assembly includes a rolling element sub-assembly for rotationally supporting the shaft of a pulverizer of a bowl mill of the type which is operative for pulverizing material such as coal into smaller particles, and includes a separator body having a bore, a rotating shaft supported within the bore, and a grinding table supported on the shaft. The rolling element sub-assembly includes an inner race secured to the shaft at a first shaft location, an outer race and a plurality of cylindrical bearings for rolling movement along and intermediate the inner and outer races. The pulverizer shaft rotational support assembly also includes an annular cutout in a gearbox housing structure for radially limiting the outer race while permitting axial movement thereof. The annular cutout limits the maximum radial displacement of the outer race to thereby maintain an annular clearance between the shaft and the bore while permitting axial following movement of the outer race in correspondence with axial movement of the inner race, whereby the shaft can freely rotate out of contact with the bore throughout the range of axial movement of the shaft during axial loading thereof.
摘要翻译： 粉碎机轴旋转支撑组件包括滚动元件子组件，用于旋转地支撑用于将材料（例如煤）粉碎成更小颗粒的类型的碗式粉碎机的粉碎机的轴，并且包括具有孔的分离器本体， 支撑在孔内的旋转轴和支撑在轴上的研磨台。 滚动元件子组件包括在第一轴位置处固定到轴的内座圈，外座圈和用于沿内圈和外圈滚动运动的多个圆柱形轴承。 粉碎机轴旋转支撑组件还包括齿轮箱壳体结构中的环形切口，用于径向限制外圈同时允许其轴向移动。 环形切口限制外圈的最大径向位移，从而在轴和孔之间保持环形间隙，同时允许外圈的轴向跟随运动对应于内座圈的轴向运动，从而轴可以自由地旋转出 在轴的轴向载荷期间在轴的轴向运动范围内与孔接触。
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