我厂是用天然石英砂做成耐火砖的形状来代替耐火砖修补化铁炉。砂砖的配料成分是:大罕新砂70～73%,唐山白坭30～27%。做砂砖时先将配合好的材料放在碾砂机上搅拌2～3分钟,然后加入5.5～6.5%水,继续搅拌15～20分钟。材料混合均匀后,放在如附图的心盒中,填满捣实,踏下脚踏板,就可 Our factory is made of natural quartz sand refractory brick shape to replace refractory brick repair iron furnace. Sand brick ingredients ingredients are: Dahham new sand 70 ~ 73%, Tangshan Barley 30 ~ 27%. When doing sand brick, first mix the good material on the sand mill and stir for 2 ~ 3 minutes, then add 5.5 ~ 6.5% water and continue stirring for 15 ~ 20 minutes. Material mixed evenly, as shown in the heart box, fill tamping, depressing the pedal, you can