共查询到20条相似文献,搜索用时 125 毫秒
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钢包喷粉工艺是国外70年代发展起来的一项新技术,它具有投资少,见效快,收益大等优点,采用钢包喷粉工艺可更进一步净化钢质,提高钢材产品质量,介绍了这一工艺所需要的主要和各种粉剂的性能。 相似文献
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本文介绍了特钢平炉煤焦油炼钢工艺,结果表明,煤焦油不仅能满足冶炼工艺要求,甚至完全可以替代重油,是平炉炼钢又一种新型能源。 相似文献
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康斯迪技术采用泡沫渣埋弧冶炼,留钢留渣操作,用钢水直接加热炉料,连续运行,同时对预热炉料后的烟气进行处理。采用康斯迪工艺可以减少设备配置,节约投资,提高生产率,大幅度降低2生产成本,且该工艺适应的炉料范围较广,是一种适于在我国推广应用的电炉炼钢技术。 相似文献
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本文介绍了一种全新概念的炼钢工艺,它是无芯感应技术与真空钢包冶金相结合的产物。作为独立工艺,这两种方法并非新的技术,早已应用于实际生产当中。而今天,我们把它们联合起来形成一种独特可行的炼钢工艺,其生产成本可与最经济的传统工艺相竞争,并可被许多第三世界国家及各工业化国家所接受和采用。 相似文献
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在国家大力提倡环保、节能的大环境下,针对卷材连续涂敷工艺,结合国外已有的卷材粉末涂敷技术,对比了溶剂型彩涂机组和粉末型彩涂机组的生产工艺,另外也从投资成本、产品质量和对环境的影响这几个方面进行了比较,最后指出相关机构可对粉末卷材涂层技术进行深入研究和开发粉末型彩涂板生产线的可行性。 相似文献
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从捣固技术的可靠性、生产的连续稳定性、焦炉寿命、焦炉加热能耗、废水处理能耗等方面,对比分析了捣固焦炉与顶装焦炉的工艺技术;指出了捣固焦炉工艺应用的局限性;并认为煤调湿是一项扩大炼焦用煤资源、提高焦炭质量、走节能减排之路、有效保护环境的技术,应大力倡导。 相似文献
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L Kacperek 《Canadian Metallurgical Quarterly》1997,3(2):51-57
The purpose of this paper is to report the application of Rogers' science of unitary human beings theory to exploring the influence of the environment and the nursing process on an adolescent with behavioral disturbance at a children's mental health outpatient. Rogers' theory is that the principles of resonancy, helicy and integrality explain the life process of human beings, and predict the development of the life process. In the paper, these principles were adopted throughout the nursing process to explore their relationship. We found that the nurse made use of varied nursing interventions, and that the interventions were influential in three aspects. In the aspect of integrality they could promote the interaction of client and environment energy field. In the aspect of helicy, they were able to reduce the complexity of the behavioral deviation. In the aspect of resonancy, they were able to slow down the evolution of acceleration of energy field between client and environment. 相似文献
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由于电炉贫化闪速炉渣具有耗费大量电能、作业环境差、检修维护费用高等缺点,对闪速炉排渣方式进行改造。通过对工艺的铜回收率影响分析,闪速炉排渣含铜的计算和对当前生产规模影响分析,以及对闪速炉排渣方式改进后的经济计算等,以此得出闪速炉直排渣的改造是可行的。改造不会影响铜的利用率和当前的生产规模,还可以减少电炉大量消耗的电能,降低成本,同时可以降低劳动强度,改善环境,减少污染。 相似文献
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有色金属铝是目前消耗量最大的金属原材料,且每年的消耗量在持续的增加。制备以及获取金属铝材料的主要方法是从氧土矿石中提取氧化铝,以此将氧化铝转换为原材料金属铝。通过对原有的氧化铝溶出工艺进行探究,找出工艺流程中的问题,并从加强矿源规范管理、提高硅量指标、避免有机物对碳酸钠结晶变性的影响、避免过多碳酸钠、硫酸钠的积累、建立应急机制等方面对其进行改进,提高氧化铝的生产质量和效率,从而减少能源的浪费以及对环境的污染。 相似文献
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Conduction and convection are assumed to account for most of the energy loss from the dead body to the (cooler) environment. There are no quantitative estimations in the literature for the contribution of radiation to heat loss. The aim of the present paper was to estimate the radiation energy loss in postmortem cooling. The Stefan-Boltzmann law is used and combined with a single-exponential model for the cooling process of the skin derived from experimental data of Lyle and Cleveland (1956). The influence of various factors (e.g. skin temperature, environmental temperature, body mass and body height) on the amount of radiation emitted was investigated. The radiation energy is quantitatively described as a function of time. The radiation energy loss ranged from approximately 200 kJ in small (165 cm) and lean (50 kg) bodies at room temperature (20 degrees C) to approximately 600 kJ in tall (185 cm) and over-weight (100 kg) bodies at outdoor temperature (5 degrees C) in the first hour postmortem. 相似文献