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1. 发明授权

US4131668A Iron ore pellet process control 失效
标题翻译：铁矿石颗粒过程控制
公开(公告)号：US4131668A
公开(公告)日：1978-12-26
申请号：US707570
申请日：1976-07-21
申请人： Minoru Sasaki , Kaoru Ito , Katsuhiro Minamida , Keiki Fujita
发明人： Minoru Sasaki , Kaoru Ito , Katsuhiro Minamida , Keiki Fujita
IPC分类号： C22B1/24 , G01N9/36 , B01J2/12
CPC分类号： G01N9/36 , C22B1/2406
摘要： A method for controlling an iron ore pelletizing and pellet processing operation by evaluating the results of the on-stream analysis of the apparent specific gravity or apparent density distributions of the dry and fired pellet samples which permits the operator of the process to determine if any changes in the process control factors are required in order to impart into the fired pellets an apparent specific gravity or apparent density distribution optimized therefor as the fired pellets are used as a blast furnace charge composition. The method includes the use of an apparent specific gravity measuring step wherein a pellet process stream is periodically sampled and the pellet samples are presented in sequence to a weight measurement unit capable of producing an electric signal proportional to the weight of each sample, from which it proceeds into a volume measurement unit photoelectrically responsive thereto to produce an electric signal proportional to the volume of the sample. A computer is provided in response to the electric signals to compute the apparent specific gravity of each of the samples. This permits a rapid and accurate record of sample analysis to be maintained for the effective control of the process factors.
摘要翻译：通过评估干燥和烧结颗粒样品的表观比重或表观密度分布的流上分析的结果来控制铁矿石造粒和颗粒处理操作的方法，其允许过程的操作者确定是否有任何变化在过程控制因素中，为了赋予烧成球团矿一个明显的比重或表观密度分布所需要的，因为烧成球团矿被用作鼓风炉装料组合物。该方法包括使用表观比重测量步骤，其中周期性地取样颗粒工艺流，并将颗粒样品依次呈现给能够产生与每个样品的重量成比例的电信号的重量测量单元，进入对其进行光电响应的体积测量单元以产生与样本体积成比例的电信号。响应于电信号提供计算机以计算每个样本的表观比重。这样可以保持样品分析的快速准确记录，以有效控制过程因素。

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