为了综合利用生产高碳铬铁合金时产生的铬铁废渣，采用50％（w）的电熔镁砂颗粒、41％（w）的电熔镁砂粉＋铬铁渣粉、5％（w）的高铝水泥、4％（w）的硅微粉制备了掺加铬铁渣的铝镁系浇注料，并研究了掺加不同量铬铁渣粉（镁砂粉与铬铁渣粉的质量比分别为010、110、210和310）的该浇注料经1200℃3 h烧后的线变化率、体积密度、显气孔率、常温抗折强度、常温耐压强度、抗热震性和抗渣性。结果表明：掺加41％（w）铬铁渣的铝镁系浇注料经1200℃3 h烧后的综合性能最佳，其常温耐压强度可达55 MPa，抗热震性和抗渣性良好。
Alumina-magnesia castables were prepared based on the formulation of 50% fused magnesite particles,41% fused magnesite powders+ferrochrome slag,5% high-alumina cement,and 4% microsilica powders in mass to further utilize the ferrochrome waste slag producing during the high carbon ferro-chrome production.The influence of ferrochrome slag addition (the mass ratios of fused magnesite pow-ders to ferrochrome slag were 0 10,1 10,2 10 and 3 10,respectively)on permanent linear change on heating,bulk density,apparent porosity,cold modulus of rupture,cold crushing strength,thermal shock re-sistance and slag resistance of castables fired at 1 200 ℃for 3 h were investigated.The results show that:the alumina-magnesia castable doped with 41% ferrochrome slag fired at 1 200 ℃ for 3 h has the best properties:55 MPa of cold crushing strength,and excellent thermal shock resistance and slag resistance.
参考文献
| [1] | C.R. Panda;K.K. Mishra;K.C. Panda;B.D. Nayak;B.B. Nayak .Environmental and technical assessment of ferrochrome slag as concrete aggregate material[J].Construction and Building Materials,2013(Dec.):262-271. |
| [2] | 张敖荣 .铬渣综合利用制水泥[J].无机盐工业,1998,30(04):34-35. |
| [3] | 欧阳峰,李刚,付永胜,陈俊敏.用铬渣作水泥矿化剂[J].化工环保,2001(04):221-223. |
| [4] | 李有光;龚七一;秦德酬 等.利用铬渣制造微晶玻璃建筑装饰板[J].环境科学,1994,15(06):41-42. |
| [5] | 刘世明.碳铬渣综合利用初探[J].铁合金,2003(03):35-37. |
| [6] | 王龙光,李红霞,徐延庆,杨彬,张立明.镁铬耐火材料在真空条件下的抗渣性[J].耐火材料,2006(05):324-328. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%