山西故县钢铁厂在大搞小土群炼钢中,创造了一种“三梯式小转炉炼钢”法。这种方法是把化鉄炉、转炉和铸钢锭三个工段,由原来的分段操作改为半连续生产,如图1所示: 三梯式小转炉炼钢的设备比较简单,主要设备如下: 1.每小时熔化300～350公斤的化鉄炉一座。 2.每炉可装鉄水80～120公斤的手摇土转炉一座。 3.铸锭车(系铁制平板车)一辆,车上装置钢锭模及底板。 4.活动式的出铁槽一个(图2)。 5.小转炉防护罩一个(用圆钢、角钢和铁皮接成长方形),罩住小转炉的两侧,以防护喷贱。 6.与小转炉及化铁炉相适应的风机各一台。在安装时,首先要选择地形,最好选用三级梯地(二级梯地亦可,第三级可挖成地壕),在第一级梯地 Therefore, Shanxi Iron and Steel Plant in the county engaged in small soil group steelmaking, creating a “three ladder small converter steelmaking” law. This method is to boil furnace, converter and ingot casting three sections, from the original segmented operation to semi-continuous production, as shown in Figure 1: Three ladder small converter steelmaking equipment is relatively simple, the main equipment As follows: 1 per hour melting 300 ~ 350 kilograms of a furnace. 2. Each furnace can hold 80-120 kilograms of hand-cranked soil converter. 3. Ingot car (Department of iron flat car) a car on-board equipment and ingot mold. 4. A movable trough (Figure 2). 5. A small converter hood (with a round bar, angle steel and sheet metal into a rectangle), cover the sides of the converter to protect spray cheap. 6. And a small converter and iron furnace to adapt to the fan one each. In the installation, we must first select the terrain, the best selection of three ladder (two ladder can also be the third level can be dug into the trench), in the first level ladder