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公开(公告)号：US20150114259A1
公开(公告)日：2015-04-30
申请号：US14391036
申请日：2013-06-04
申请人： SINTOKOGIO, LTD.
发明人： Yuichi Ogura , Koji Takishita , Hisashi Harada
IPC分类号： B22C5/04
CPC分类号： B22C5/0409 , B22C5/0463 , B22C5/0472 , B22C5/18 , B22C19/04 , B28C7/024 , B28C7/0409 , B28C7/12
摘要： Provided is a mixing and adjusting method for foundry sand that uses a sand muller, having weight measuring means for measuring a weight of the foundry sand to be mixed, water content measuring means for measuring a water content of the foundry sand to be mixed, water pouring means for pouring water into the foundry sand, and CB value measuring means for measuring a CB value of the foundry sand during mixing.
摘要翻译： 提供了一种使用砂磨机的砂轮的混合调整方法，具有测定要混合的铸造砂的重量的重量测量装置，用于测量待混合的铸造砂的含水量的水分测量装置，水 用于将水倒入铸造砂中的倾倒装置，以及用于在混合期间测量铸造砂的CB值的CB值测量装置。
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2.发明申请Method for making sand covered with bentonite, the sand, and a method for recycling molding sand for a mold using the sand covered by bentonite 失效用膨润土，沙子覆盖沙子的方法，以及使用膨润土覆盖的沙子回收模具砂的方法公开(公告)号：US20020110044A1
公开(公告)日：2002-08-15
申请号：US10043172
申请日：2002-01-14
申请人： SINTOKOGIO, LTD.
IPC分类号： B28C007/04
摘要： Given green sand is obtained by a mixing operation that is carried out for a short period of time. Discarded sand is supplied as supplementary sand to a sand processing line, so that molding sand can be recycled. Green sand for a molding is used for facing sand or the pocket sand. Bentonite-covered sand is made by mixing reproduced sand, new sand, and discarded sand or any or all of them. The bentonite-covered sand is added to collected sand to supplement it. Also, the bentonite-covered sand is mixed with water, and used for facing sand or the pocket sand.
摘要翻译： 给定绿砂通过在短时间内进行的混合操作获得。 废砂被作为补砂提供给砂处理生产线，从而可以回收型砂。 用于成型的绿砂用于面向砂或口袋砂。 膨润土覆盖的沙子是通过混合再生砂，新砂和废砂或其中任何一种或全部而制成的。 将膨润土覆盖的沙子加入到收集的沙子中以补充它。 此外，将膨润土覆盖的沙子与水混合，用于面对沙子或口袋砂。
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公开(公告)号：US5706879A
公开(公告)日：1998-01-13
申请号：US431120
申请日：1995-04-28
申请人： Christian Renner , Xaver Naf , Jovo Laskovic
发明人： Christian Renner , Xaver Naf , Jovo Laskovic
CPC分类号： B22C5/02 , B22C5/18 , Y10S241/10
摘要： An apparatus for reclaiming used foundry and molding sand comprises a container having a cylinder sidewall and at least one bottom wall or tray is arranged on a sand reclamation device for the mechanical cleaning of grains of sand, particularly organically and inorganically bonded molding sands. A central, hollow drive shaft is arranged in the cylinder and is supported for rotation. The bottom walls are firmly attached to the hollow shaft. A slot is formed between the bottom walls and cylinder. By the rotation of the bottom walls a parting plane is formed between the rotating part and the stationary part of the column of sand, in which plane an intensive rubbing of grain against grain takes place. As a result of the cylindrical force, the sand is brought in the direction towards the wall of the cylinder and through the slot, which additionally leads to an intensive rubbing of grain against grain. The powder produced upon the rubbing, primarily binder particles which have been rubbed off, is drawn off continuously through the hollow shaft by means of the suction via openings which are provided in the hollow shaft.
摘要翻译： 用于回收所使用的铸造和型砂的设备包括具有气缸侧壁的容器，并且至少一个底壁或托盘布置在用于机械清洁砂粒，特别是有机和无机粘结的型砂的砂土回收装置上。 中心的中空驱动轴设置在气缸中并被支撑以便旋转。 底壁牢固地连接到中空轴上。 在底壁和气缸之间形成槽。 通过底壁的旋转，分离平面形成在砂柱的旋转部分和固定部分之间，在该平面中发生颗粒对颗粒的强烈摩擦。 作为圆柱形力的结果，沙子沿着朝向圆柱体壁的方向并且通过狭槽而进入，这另外导致谷物紧密地磨擦谷物。 在摩擦上产生的粉末，主要是被擦去的粘结剂颗粒，通过设置在空心轴中的抽吸通孔，通过中空轴连续地被抽出。
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公开(公告)号：US5332139A
公开(公告)日：1994-07-26
申请号：US56566
申请日：1993-05-03
IPC分类号： B01J8/18 , B01J8/36 , B01J8/42 , B22C5/18 , C21D1/53 , F27B15/14 , F27D99/00 , H05B3/00 , B02C21/00
CPC分类号： B22C5/18 , B01J8/1836 , B01J8/36 , B01J8/42 , C21D1/53 , F27B15/14 , F27D99/0006 , H05B3/0038 , B01J2208/00061 , B01J2208/00194 , B01J2208/0046
摘要： An apparatus is disclosed for heat treating a product. The apparatus includes a retort having a volume sized to receive a bed of fluidized particles having a predetermined elevation within the volume and a plurality of electrically powered infrared radiation sources. The sources are submerged within the bed of fluidized particles. Use of the apparatus to reclaim foundry sand is also disclosed.
摘要翻译： 公开了一种用于热处理产品的装置。 该装置包括具有容积尺寸以容纳体积内具有预定高度的流化颗粒床和多个电力红外辐射源的蒸馏器。 源被浸没在流化颗粒床内。 还公开了使用该设备回收铸造砂。
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5.发明授权Method for both cooling and pneumatically scrubbing a calcined, particulate material 失效用于冷却和气动洗涤煅烧颗粒材料的方法
公开(公告)号：US5217170A
公开(公告)日：1993-06-08
申请号：US833925
申请日：1992-02-11
申请人： Gerald J. Reier
发明人： Gerald J. Reier
CPC分类号： B01J8/36 , B01J8/1836 , B01J8/245 , B22C5/18 , Y10S241/10
摘要： A method is shown for removing minute traces of thermally fused foundry bonding clays from foundry sands reclaimed by a thermal sand reclaimer. The sand grains are passed to a dual fluid bed sand cooler-scrubber having sparge tubes for fluidizing air distribution, finned water cooling tubes and baffle plates for directing sand travel across the tube banks. The fluidized bed extends under a series of dry scrubber cells where the sand grains are hurled through blast tubes toward target plates by blast nozzles. Air current created within the interior of the device creates a controlled negative atmosphere which carries off unwanted traces of oxides and clays, as well as unwanted fine sand grains. The sand grains which are suitable for reuse are captured and deflected into a discharge section of the fluid bed where they flow over a weir by gravity and are discharged for re-use.
摘要翻译： 示出了从热砂回收机回收的铸造砂中去除热熔铸造粘结粘土的微小痕迹的方法。 砂粒被传送到具有用于流化空气分配的喷射管，翅片水冷却管和挡板的双流体床砂冷却器 - 洗涤器，用于引导穿过管岸的沙子行进。 流化床在一系列干洗涤器细胞下延伸，其中砂粒通过鼓风管通过喷嘴喷射到靶板。 在设备内部产生的气流产生受控的负气氛，其中产生不需要的痕量的氧化物和粘土以及不需要的细砂粒。 适用于再利用的砂粒被捕获并偏转到流化床的排放部分，在该排放部分中，它们通过重力流过堰，并被排出以供再利用。
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6.发明授权Process for reclaiming bentonite and carbon particles from used foundry sand 失效从使用的基础砂中回收膨润土和碳颗粒的方法
公开(公告)号：US5163562A
公开(公告)日：1992-11-17
申请号：US797391
申请日：1991-11-25
申请人： Ludwig Wilhelm , Peter Rossmanith
发明人： Ludwig Wilhelm , Peter Rossmanith
CPC分类号： B22C5/18 , B07B9/00 , F26B3/343 , Y10S241/10
摘要： A process for separating bentonite and carbon carrier particles from an air-dust mixture generated from a mechanical used-sand reclamation unit and, more particularly, a process as aforesaid wherein the bentonite and carbon carrier particles are recycled to a foundry sand preparation unit.
摘要翻译： 将膨润土和碳载体颗粒从机械用砂回收单元产生的空气 - 粉尘混合物中分离的方法，更具体地说，是将膨润土和碳载体颗粒再循环到铸造砂制备单元中的方法。
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7.发明授权
公开(公告)号：US5163496A
公开(公告)日：1992-11-17
申请号：US754961
申请日：1991-09-04
申请人： Hermann Jacob
发明人： Hermann Jacob
摘要： The present invention relates to a process for treating old foundry sand for reuse in place of core sand wherein the precleaned sand grains are subjected to further abrasive-thermal treatment so as to volatize and remove basic constituents adhering to the precleaned sand grains.
摘要翻译： 本发明涉及一种处理旧铸造砂代替芯砂的方法，其中预清洗砂粒经受进一步的磨蚀热处理，以便挥发除去附着在预清洗砂粒上的碱性组分。
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公开(公告)号：US4636168A
公开(公告)日：1987-01-13
申请号：US796008
申请日：1985-11-07
CPC分类号： B22C5/18
摘要： An apparatus for thermally and pneumatically treating granular solids to remove organic and inorganic chemical additives which are bonded to the granular solids or in admixture with them, to provide a purified granular solid product which is suitable for reuse, for example foundry sand for use in high strength molded cores, or for other productive uses, such as landfill. Granular solid feed material is preheated in a dilute phase zone of a fluidized bed, organic chemical additives are thermally oxidized in a dense phase zone of the fluidized bed, and remaining inorganic chemical additives are separated and removed from the granular solids in a contiguous pneumatic impaction zone. The purified granular solids are removed from the pneumatic impaction zone and organic and inorganic materials are elutriated from the fluidized bed and removed from the head space.
摘要翻译： 一种用于热和气动处理颗粒状固体以除去结合到颗粒状固体或与其结合的有机和无机化学添加剂的设备，以提供适合于再利用的纯化的颗粒状固体产品，例如用于高的 强度成型芯，或用于其他生产用途，如垃圾填埋。 颗粒状固体饲料在流化床的稀相区中被预热，有机化学添加剂在流化床的致密相区被热氧化，剩余的无机化学添加剂在连续的气动冲击中被分离并从颗粒状固体中除去 区。 将精制的颗粒状固体从气动冲击区移除，并将有机和无机材料从流化床中淘析并从顶部空间中移出。
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公开(公告)号：US4566637A
公开(公告)日：1986-01-28
申请号：US625286
申请日：1984-06-27
申请人： Vagn Deve
发明人： Vagn Deve
CPC分类号： B22C5/18 , Y10S241/10
摘要： A system (10) particularly suited for reclaiming used foundry sand by means of thermal reclamation. The subject system (10) includes, arranged in cooperatively associated series relation, thermal reclaimer means (14), post reclaimer means (15), primary cooling means (16), separator means (18), classifying and dust removal means (19), scrubber means (20) and secondary cooling means (22). The used sand, which preferably is first fed through a lump-crusher, shake-out apparatus (12), is made to pass through thermal reclaimer means (14) while being heated to a predetermined temperature for a preestablished period of time in order to accomplish the burning away of the organic materials, i.e., matter, which are present in the used sand. From the thermal reclaimer means (14), the used sand passes to and through the post reclaimer means (15) for further reclaiming and then to and through the primary cooling means (16) wherein the heated sand is cooled to a suitable temperature. The separator means (18) is operative to effect the removal of tramp metal from the cooled, thermally reclaimed sand. Thereafter, the cooled, thermally reclaimed sand is made to pass through the classifying and dust removal means (19) for classifying and removal of dust and fines and then through the scrubber means (20) wherein the dust associated with the particles of sand is removed therefrom. Finally, the substantially dust-free, cooled, thermally reclaimed sand passes through the secondary cooling means (22) wherein the sand is further cooled to substantially ambient temperature.
摘要翻译： 一种系统（10），特别适用于通过热回收再循环使用的铸造砂。 主题系统（10）包括配置关联的串联关系的热回收装置（14），后退回收装置（15），主冷却装置（16），分离装置（18），分类除尘装置（19） ，洗涤装置（20）和二次冷却装置（22）。 优选首先通过块式破碎机送出装置（12）的二手砂通过热回收装置（14），同时被加热到预定温度以进行预先确定的时间段，以便 完成有机材料的燃烧，即存在于用过的砂中的物质。 二次砂从热回收装置（14）通过并通过回收装置（15）进一步回收，然后通过主冷却装置（16）并通过主冷却装置（16），其中加热的砂被冷却至合适的温度。 分离装置（18）可操作以从被冷却的热回收砂中去除流出的金属。 此后，冷却的热回收砂被制成通过分级除尘装置（19），用于分类和除去灰尘和细粉，然后通过洗涤器装置（20），其中除去与砂粒相关的粉尘被去除 由此。 最后，基本上无尘，冷却的热回收砂通过二次冷却装置（22），其中砂进一步冷却至大致环境温度。
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公开(公告)号：US4408985A
公开(公告)日：1983-10-11
申请号：US301459
申请日：1981-09-14
摘要： A method is disclosed for fixing certain dangerous substances into recyclable waste foundry sand so that they are less likely to leach out into the environment. The method uses a roasting process which causes the dangerous substances to form insoluble compounds with the sand. One example is shown where hazardous waste foundry sand which contains acetic acid soluble lead contamination is treated by this method. In this example the lead is believed to react with the sand during the roasting process forming compounds such as lead silicate which are insoluble to acetic acid. The amount of lead which may be leached out into the environment is reduced to a safe level according to the currently accepted test methods promulgated by the U.S. Environmental Protection Agency. The method may be applied to the conversion of waste foundry sand into reusable sand or landfill which are less likely to leach dangerous substances into the environment.
摘要翻译： 公开了一种将某些危险物质固定在可回收废弃物铸造砂中的方法，使得它们不太可能浸出到环境中。 该方法采用焙烧过程，导致危险物质与沙子形成不溶性化合物。 一个例子显示了通过该方法处理含有乙酸可溶性铅污染物的危险废物铸造砂。 在这个例子中，铅被认为在焙烧过程中与砂形成反应，形成不溶于乙酸的化合物如硅酸铅。 根据目前公认的美国环境保护局颁布的测试方法，可能排入环境的铅含量降至安全水平。 该方法可以应用于将废弃砂轮转化为可再利用的沙子或垃圾填埋场，这些垃圾填埋场不太可能将危险物质浸入环境中。
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