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公开(公告)号：US3919393A
公开(公告)日：1975-11-11
申请号：US33942673
申请日：1973-03-08
申请人： DRAVO CORP
发明人： SELMECZI JOSEPH G
CPC分类号： B01D53/501
摘要： An improved process for the removal of sulfur dioxide from gases resulting from combustion of sulfur-containing fuels such as coal, with the gases passed through a wet scrubber to which there is added an aqueous solution of calcium oxide containing 2-10% magnesium oxide, whereby the effeciency of sulfur dioxide removal in the scrubber is increased and scaling reduced therein.
摘要翻译： 一种改进的方法，用于从含硫燃料例如煤燃烧产生的气体中除去二氧化硫，气体通过湿式洗涤器，向其中加入含有2-10％氧化镁的氧化钙水溶液， 从而洗涤器中二氧化硫去除的效率增加并在其中缩小。
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公开(公告)号：US3870238A
公开(公告)日：1975-03-11
申请号：US33469573
申请日：1973-02-22
申请人： DRAVO CORP
发明人： SELLARS GEORGE L
CPC分类号： B02C17/14 , B02C23/16 , Y10S241/10
摘要： A sand fracturing machine for breaking coarse grain of sand into smaller grains. The machine includes an open topped container having a bottom wall with circular openings therethrough. Rods of steel or other suitably hard material are located in the box and are supported by the bottom wall. Sand containing grains of many different sieve sizes is introduced into the container through its open top which falls on top of the rods. A vibration mechanism connected to the container is operative to vibrate the container in a substantially vertical direction. The sand sifts downwardly between the vibrating rods and out through the openings in the bottom wall of the container. As the larger grains pass between the vibrating rods, however, they are fractured by the rods to create smaller mid-size grains while the smallest grains sift between the rods unaffected. Consequently, the machine is operative to produce a sand aggregate with a different grain size distribution from that of the sand put into it which principally has a greater percentage of mid-size grains than found in the sand placed into the machine.
摘要翻译： 一种用于将粗粒砂破碎成较小颗粒的砂压机。 该机器包括敞开的顶部容器，其具有通过其的圆形开口的底壁。 钢或其他合适硬质材料的棒位于箱体中并由底壁支撑。 含有许多不同筛分尺寸的颗粒的砂通过其顶部落入棒的顶部而引入容器中。 连接到容器的振动机构用于使容器在基本垂直的方向上振动。 沙子在振动杆之间向下移动并穿过容器底壁的开口。 然而，当较大的颗粒在振动杆之间通过时，它们被棒断裂以产生较小的中等尺寸的颗粒，而最小的颗粒在不受影响的杆之间筛选。 因此，该机器可操作地产生具有与放入其中的砂粒度分布不同的粒度分布的砂粒料，其主要具有比放置在机器中的砂中发现的更大百分比的中等粒度的砂粒。
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公开(公告)号：US3767060A
公开(公告)日：1973-10-23
申请号：US3767060D
申请日：1972-05-18
申请人： DRAVO CORP
发明人： BRIGGS A
CPC分类号： B66C3/125
摘要： A reeved bucket assembly for use in a material handling apparatus is disclosed. The assembly includes a clamshell-type bucket to which is secured hold cables fixed to diagonally opposite end portions of the top region of the bucket. The hold cables are reeved over sheaves supported by an elongated mounting arm secured at an acute angle to the underside of a main trolley. The trolley is provided with mounting means for arranging it on a boom member or the like for longitudinal movement therealong. The acute angle of the mounting arm, the longitudinal axis of which extends laterally of the trolley, is measured from the front side thereof which faces the trolley, the rear side of the arm facing the bucket. Support means are provided for supporting the mounting arm to the trolley for selective rotation about the transverse axis thereof. The hold sheaves are supported by frames which are rotatable with respect to the mounting arm about axes extending laterally, with respect to the arm. The mounting arm, the means for rotatably supporting the arm on the trolley, and the sheave carrying frames are constructed and arranged such that when the mounting arm is rotated the bucket will rotate without tilting while the hold sheaves remain in fixed planes with respect to the bucket. Close sheaves supported by the mounting arm and close cables reeved over the sheaves and connected directly to the bucket are also provided.
摘要翻译： 公开了一种用于材料处理装置中的固定式铲斗组件。 该组件包括蛤壳型铲斗，固定在其上的桶的顶部区域的对角相对端部的固定保持绳索。 保持电缆被固定在与主手推车的下侧成锐角的细长安装臂支撑的滑轮上。 手推车设置有用于将其布置在悬臂构件等上用于纵向运动的安装装置。 安装臂的纵向轴线从台车横向延伸的锐角从面向小车的前侧测量，臂的后侧面对铲斗。 提供支撑装置用于将安装臂支撑到手推车上，以围绕其横向轴线选择性地旋转。 保持绳轮由相对于安装臂可相对于臂横向延伸的轴线的框架支撑。 安装臂，用于将手臂上的臂可旋转地支撑在手推车上的装置和滑轮承载框架被构造和布置成使得当安装臂旋转时，铲斗将在没有倾斜的同时旋转，同时保持滑轮保持在相对于 桶。 还提供了由安装臂支撑的闭合的滑轮，并且将电缆套在绳轮上并直接连接到铲斗上。
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公开(公告)号：US3746150A
公开(公告)日：1973-07-17
申请号：US3746150D
申请日：1971-10-12
申请人： DRAVO CORP
发明人： BRIGGS A
摘要： A bulk material handler is supported by a pivotable truck and two independently steerable and independently driven main wheels which stradle a loader equipped boom. For movement in a direction generally parallel to the boom, the main wheels are turned in synchronism in parallel planes. For slewing, the main wheels are turned in opposite directions until their rolling axes intersect the turning axis of the truck. For linear movement transverse to the boom, the main wheels are turned until their rolling axes are parallel to the boom. The vertically rotatable boom is pivoted at a point above the turning axis of the truck.
摘要翻译： 散装材料处理器由可枢转的卡车和两个可独立操纵和独立驱动的主轮支撑，这些主轮支撑装载机装备的吊杆。 为了在与大臂平行的方向上移动，主轮在平行的平面上同步转动。 对于回转，主轮沿相反方向转动，直到它们的滚动轴线与叉车的转动轴线相交。 对于横向于动臂的直线运动，主轮转动直到其滚动轴线平行于起重臂。 可垂直旋转的吊杆在卡车转向轴上方的一点枢转。
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公开(公告)号：US3653486A
公开(公告)日：1972-04-04
申请号：US3653486D
申请日：1970-07-17
申请人： DRAVO CORP
发明人： MCLEAN WILLIAM B , NARUNS LAIMONS
CPC分类号： E02F9/18 , B65G65/20 , B66C23/72 , B66C2700/0392
摘要： There is shown a mobile material handling structure, such as a bucket wheel stacker and reclaimer having a carriage on which is a turntable structure comprising the turntable itself, with a mast, a load boom pivoted to swing in a vertical arc, and a counterweight at the end of a pivoted strut that extends out beyond the turntable in a direction diametrically opposite the load boom. A cable, connected with the counterweight, passes over the mast and is attached to the boom, so that as the boom swings up or down from a level position, the pivoted strut with its counterweight swings in an opposite direction from a level position. The center of mass of the counterweight is roughly about as far from the center of rotation of the table as the center of mass of the load boom so that the moment arms through which the two masses are effective to counterbalance each other are approximately equal at all times.
摘要翻译： 示出了可移动材料处理结构，例如铲斗轮堆垛机和具有托架的回收机，其上是转台本身的转台结构，其具有桅杆，枢转以垂直弧摆动的负载起重臂和配重 枢转支柱的端部在与载重吊杆完全相反的方向上延伸超出转台。 与配重连接的电缆通过桅杆并连接到吊杆上，使得当吊杆从水平位置向上或向下摆动时，其配重的支杆与水平位置相反的方向摆动。 配重的质心大致与载重臂的质量中心距离工作台的旋转中心的距离大致相等，使得两个质量有效地抵抗彼此的力矩大致相等 次
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公开(公告)号：US3630353A
公开(公告)日：1971-12-28
申请号：US3630353D
申请日：1969-03-26
申请人： DRAVO CORP
发明人： SEIDEL HORST , CAPPEL FRED
CPC分类号： C22B1/26
摘要： The invention is directed to the removal of granular fines or dust from broken sinter cake, before delivery thereof to a blast furnace, by subjecting the broken cake, during passage from the sinter breakers to the cooling area, to a pressurized upward blast of air which carries the sinter fines through an exhaust hood and suitable conveyor conduit into a precipitator which removes the fines for return to the sinter machine and discharges the air to the atmosphere.
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公开(公告)号：US3563523A
公开(公告)日：1971-02-16
申请号：US3563523D
申请日：1968-08-26
申请人： DRAVO CORP
发明人： WENDT JOHN S JR
CPC分类号： C21B7/06 , F27D3/1527 , Y10T29/53883
摘要： An apparatus for relining metallurgical furnace tap-holes is disclosed. The apparatus is adapted to be inserted in a furnace tap-hole and includes a tubular housing, a supply hopper communicating with the housing for introducing a lining material into the housing and a screw conveyor for advancing the lining material from the hopper forwardly through the housing. The forward end of the housing is closed by a nose piece and the housing has openings around its periphery to the rear of the nose piece. A discharge member is provided within the housing between the forward end of the screw conveyor and the nose piece and generally in the transverse plane of the openings for forcing material radially through the openings. Means are provided for driving the screw conveyor and simultaneously imparting a vibratory motion to the housing so that as lining material is discharged through the openings, the housing''s outer wall compacts the lining material against the inner wall of the taphole.
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公开(公告)号：US3435619A
公开(公告)日：1969-04-01
申请号：US3435619D
申请日：1967-06-13
申请人： DRAVO CORP
发明人： MCGUIRE EARL J
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9.发明授权Barge handling and unloading system and method of handling and unloading barges 失效班级处理和卸载系统及其处理和卸载方法
公开(公告)号：US3420388A
公开(公告)日：1969-01-07
申请号：US3420388D
申请日：1967-10-31
申请人： DRAVO CORP
发明人： BRIGGS AUBREY C
CPC分类号： B65G67/606
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公开(公告)号：US3365186A
公开(公告)日：1968-01-23
申请号：US39171464
申请日：1964-08-24
申请人： DRAVO CORP
IPC分类号： C21C7/10
CPC分类号： C21C7/10
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