Since the introduction of melting acceleration technique by coal-oxygen injection in the electric are furnace operation the heat supply has changed from partial supply pattern into a new one on a large area and multi point basis, and as a result the syn- chronous melting of furnace charge has replaced the previous mode of gradually melting.
电炉采用煤氧助熔技术,能改变电炉原局部供热为大面积多点供热,从而炉料由渐近熔化变为同步熔化。
It is shown that,compared with extractive coals,gas producing ratio reduces a bit but the effective gas components CO and H2 did not reduce after adding additive.
结果表明:对同一矿区煤样,与精煤相比,加入助熔剂后,产气率有所下降,但有效气体中的CO+H2并没有减少。
Selecting CaO as additive,blending it into two coals in different proportions respectively,the tests of coal ash fusion characteristics are performed under condition of the infirmly deoxidized ambience.
选取CaO为助熔剂,分别与2种煤灰样进行不同比例的混合,在弱还原性气氛条件下对煤灰熔融性进行研究。
The additives CaO or Fe2O3 were blended with the coals in different proportions respectively.
以CaO和Fe2O3为助熔剂,分别与7种煤样进行不同比例的混合,在气化条件下进行煤灰熔融性实验,降低煤灰熔融性温度,为生产合成气用煤的选择提供科学依据。
Research on flux effected to ash fusion;
助熔剂对煤灰熔融性影响的研究
Research on flux added to reduce ash fusion temperature of Huainan coal;
添加助熔剂降低淮南煤灰熔融性温度的研究
Mechanism of reducing ash fusion temperature by adding flux in Huainan coal;
添加助熔剂降低淮南煤灰熔融性机理初探
6% containing slag is chosen as the basic slag and CaF2 is replaced by B2O3 as the fluxing agent it's found out that as the fluxing agent B2O3 is almost the same as CaF2 therefore B2O3 can be used as the pollution refining slag in place of SiO2 slag.
6%的渣作基础渣系,将B2O3作助熔剂替代CaF2,发现B2O3和CaF2的助熔效果相当,B2O3可用作环保型助熔剂。
The slag composite contains CaO-SiO 2-Fe 2O 3-MgO-MnO 2(2?%)-Al 2O 3(3?%)-P 2O 5(2?%)and CaF 2 is used as a fluxing agent.
模拟再利用于铁水预处理的转炉渣剂组成 ,对CaO -SiO2 -Fe2 O3-MgO -MnO2 (2 % ) -Al2 O3(3% ) -P2 O5(2 % )系熔剂 ,采用CaF2 为助熔剂 ,在m (CaO ) m (SiO2 ) =2 。
One of the perspective ways is to install the electric boosting into the existing furnace or to build the new furnace including the electric boosting.
其中一个有效的方法就是在当前熔窑上安装电助熔或建新窑时带电助熔。
This article discussed a method that using 10 KV electric power,not through the transformer substation voltage dropping,supplies power for the isolation oil transformers to help electric boosting,introduced the items,should pay attention,in using ultra high voltage isolation oil transformer, showed the merit that using extra high voltage to help electric boosting.
不经过变电所降压直接为电助熔的隔离变压器供电,进行电助熔,从而降低了电助熔整套系统的造价。
The testing result indicates that TiO_2 has mineralized effect on C_2S,at the same time flux effect on reducing low general melting point of CaO-SiO_2 system and yielding much liquid phase,TiO_2 has definite stabilized effect on β-C_2S.
结果随着TiO2掺入量增加,TiO2有明显的矿化作用和降低钙硅体系低共熔点的助熔作用,TiO2对β-C2S的稳定有一定的作用;在有SO3的情况下,TiO2对β-C2S的稳定作用更明显。