设计一个年产300万吨合格连铸坯的转炉炼钢车间 摘要

摘要

由于市场对钢材的大量需求，现代化的炼钢设备都在向着大型化的方向发展，本设计主要是模拟建立一个现代化年产300万吨的中型炼钢企业，以满足市场对钢材的需求，促进经济的稳定发展。

设计为氧气顶吹转炉工艺，转炉的公称容量为150吨，冶炼时间需要40分钟。其中，仅有16.5分钟时间用于实际的吹氧过程。其余时间（23.5分钟）为炉子装料、取样并检测钢液成分、以及测量钢液温度、出钢、倒渣等各过程所需时间之和。转炉的吹炼模式采用2吹2。车间设有1座RH精炼炉和2套板坯连铸机，预计年生产能力为300万吨良坯钢。本设计对物料平衡和热平衡，炉型的计算，炉外精炼，连铸以及烟气净化系统等做了详细的介绍。

关键词：150吨氧气顶吹转炉；炼钢；连铸。

Abstract

Because of the high demand for steel market, modern steel-making equipment toward the direction of bigness in development, this design is mainly simulation in liupanshui city to build a modern yearly produces 300 tons of medium-sized steelmaking enterprise, to meet the market demand for steel, and promote steady economic development.

The design for a representative of oxygen blowing the top of each furnace for the production of 150 tons of liquid steel, and smelting time is 40 minutes. Of these, only 16.5 minutes for the actual oxygen blowing process. The remaining time (23.5 minutes) for the stoves, filling, sampling and testing of liquid ingredients, and measuring the temperature of liquid steel, steel, inverted, and other residue of the process and time required. Design of the scale of production for the three 3 million tons of oxygen BOF, one RH refining and one set of continuous casting equipments, which are expected annual production capacity of 3 million tons of steel billet. The design of the material balance and thermal balance, the furnace shape, refining, continuous casting and the flue gas purification system, a detailed introduction were finished.

Keywords: BOF of 150 tons; steelmaking; continuous casting