论文部分内容阅读
我厂1200mm叠轧薄板机组,建有两座链式加热炉,炉底砌砖长度24176mm,炉膛宽度1508mm,炉底有效面积36.27m~2.用来供9.8～17.3×240×1035mm的薄板坯轧制前加热和叠板二次加热.原设计采用异形粘土耐火砖砌筑的炉底,其形状和尺寸见图1和图2:投产后一年间,因高铝铸铁炉爪受热变形,刮起炉底砖5次.造成“鼓炉”停产检修总计达89.25h,减产薄板199.5t,损失产值达人民币154861.88元.修炉所用粘土耐火砖一项材料费用
I plant 1200mm roll-forming thin-plate unit, built two chain-type furnace, furnace floor brick length 24176mm, furnace width 1508mm, bottom effective area 36.27m ~ 2. Used for 9.8 ~ 17.3 × 240 × 1035mm thin slab The heat before rolling and the second reheating of the stack.The original design adopts the bottom of the shaped clay refractory brick to be built, the shape and the size of which are shown in Fig. 1 and Fig. 2: One year after putting into operation, From the bottom of the furnace brick 5. Caused “Drum ” stop production overhaul amounted to 89.25h, reducing sheet 199.5t, the output value of loss reached RMB154,861.88 yuan. Clay refractory bricks used in a material cost