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我们车间原使用的铁水包是利用火砖修砌的,由于我们采用二合面(石灰:萤石=1:1)进行炉外脱硫,同时利用压缩空气强烈地搅拌,致使碱度高和流动性很好的渣子对包壁侵蚀的作用非常严重,包子寿命平均只在30包左右,这就造成铁水包周转非常紧张,影响了生产。针对车间这个生产关键,在不烘炉炼钢使油砖快速烧结的启示下,利用白云石油砖修砌了碱性铁水包进行实验,结果使铁水包平均寿命提高到60～70包。这就消除了铁水包周转紧张的现象,而稳定了车间生产。 1.碱性铁水包的修砌: 将转炉使用的标准油砖打成两半(各115毫米)进行修砌包壁(破面和铁水接触),包底用油砖平砌。采用于砌的方法,在砖和保护砖之间利用废白云石粉料进行填充搞紧。(头一个实验包采用标准油砖立砌的方法修砌包壁,使用39包后由于掉砖而坏;第二个实验包及以后的改用半块砖修砌而解决了掉砖问题)。 2.碱性包的使用:
The hot metal ladle originally used in our workshop was built with fire bricks. Since we use out-of-furnace desulfurization (Lime: Fluorite = 1: 1) with strong mixing of compressed air and high alkalinity, Very good residue on the erosion of the cladding wall is very serious, the average life of the buns only about 30 packets, which resulted in a very tight hot metal flow, affecting the production. According to the key point of the workshop, the experiment of using dolomitic oil brick to repair the alkaline ladle has been done on the basis of not hinging the steel to make the oil bricks quickly sinter. As a result, the average service life of the hot metal ladle is increased to 60-70 packets. This eliminates the hot metal turnaround of tension, and stabilize the workshop production. 1. Alkaline ladle repair construction: The converter used in the standard oil brick hit in half (each 115 mm) to repair the puzzle package wall (broken surface and hot metal contact), the bottom of the oil brick puzzle. Used in the puzzle method, the use of waste dolomite between the brick and brick protection fill stuffing. (The first experimental package adopts the method of standard oil brick to build the package wall, the use of 39 packets after the broken brick and bad; the second experimental package and later converted to half brick repair brick and solve the brick problem) . 2 alkaline package of use: