原料作业区混匀工艺优化与设备研究

发布时间：2018-03-12 14:13

本文选题：混匀料场　切入点：重型卸矿车　出处：《东北大学》2010年硕士论文　论文类型：学位论文

【摘要】：对传统工艺进行研究,对老设备进行更新改造,投资小,见效快,是企业提高经济效益、实现企业装备现代化的重要途径。混匀料是天津钢铁有限公司炼铁厂原料作业区的重要产品,由于设备和工艺问题产生的混匀料成份不均匀现象一直影响一次料场中混匀料的产品质量。本课题以提高混匀料质量为中心,主要研究日常生产作业中工艺和设备对混匀料质量的影响,研究内容包括： 1、混匀工艺系统的第一步：重型卸矿车。跟踪和分析重型卸矿车的技术情况,重型卸矿车所出现的故障较多集中在其内部的电液动三通分料器部位,针对这一部分的特点,研究并提出若干改造方案,并进行理论与实践相结合的综合性比较,确定最佳的改造方案,显著降低卸矿车的故障率。 2、混匀工艺中的第二步：圆盘给料机。设备技术相对较成熟,在生产中要不断研究,改造其技术,保证其准确的切料。 3、混匀工艺的第三步：混匀堆料机。其性能的优略直接影响混匀料的产品质量,降低故障率,进一步优化其设计,在工艺上学习并改进其堆料工艺非常重要。这一步的研究是本论文的重点,实际生产中采取了各种堆料工艺,不断地实验,最终确定了一种科学可行的方案,保证了混匀料的均匀,提高作业率。分析了混匀堆料机的控制要求,研究PLC自动控制系统的结构及程序流程。针对所堆料的长度和位置的不确定因素提出时间限位法,详细分析了自动控制系统的改造方案。文章介绍原料作业区混匀工艺,围绕此工艺的重要设备提出了各种改造,最终保证混匀工艺系统的优化,增加混匀料的产品质量,提高企业的生产效率。
[Abstract]:The traditional technology is studied, the old equipment is renovated, the investment is small, the effect is quick, and the economic benefit of the enterprise is improved. An important way to realize the modernization of enterprise equipment. Blending is an important product in the raw material operation area of Tianjin Iron and Steel Co., Ltd. The uneven composition of the mixture produced by the equipment and process problems has always affected the product quality of the mixture in the primary material yard. This project focuses on improving the quality of the mixture. The influence of process and equipment on blending quality in daily production is studied. The research contents include:. 1. The first step of the blending process system: heavy unloading truck. Tracking and analyzing the technical situation of heavy dump truck, the faults of heavy dump truck are mostly concentrated in the part of the electro-hydraulic three-way feeder, and in view of the characteristics of this part, Several reconstruction schemes are studied and put forward, and the comprehensive comparison between theory and practice is carried out to determine the best reconstruction scheme, and the failure rate of unloading truck is significantly reduced. 2, the second step in mixing process: disc feeder. The equipment technology is relatively mature, we should study continuously in production, reform its technology, ensure its accurate cutting material. 3, the third step of blending process: mixing heaping machine. The superior performance directly affects the product quality of blending material, reduces the failure rate, and further optimizes its design. It is very important to learn and improve the stowage process in the process. The research of this step is the focus of this paper. The control requirements of the mixing machine are analyzed, the structure and program flow of the PLC automatic control system are studied, and the time limit method is put forward in view of the uncertain factors of the length and position of the stacked material. The transformation scheme of automatic control system is analyzed in detail. This paper introduces the blending process in the raw material operation area, and puts forward various revamping around the important equipment of this process, in order to ensure the optimization of the blending process system, increase the product quality of the blending material, and improve the production efficiency of the enterprise.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：TF325

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