炼铁

This article concludes the test result and production experience of the internal puddler about injecting the bituminous and anthracite mixed coal.

本文归纳了国内炼铁工作者关于高炉喷吹烟无混合煤的试验结果和生产经验。

Steel industry is the pillar of the national economy and blast furnace is very important for the steel industry.

中文摘要：钢铁工业是国民经济的支柱产业，高炉炼铁是钢铁工业的重要组成部分。

Coal injection is one of the most important technical developments in recent years inthe blast furnace production.

喷吹煤粉是近年来高炉炼铁最重要的新技术之一。

Mechanism of carbon combustion reaction is deduced based on the flame temperature produced by coke burning in bloomery abdomen.

本文根据炼铁高炉炉腹内焦炭燃烧产生的火焰温度推测碳燃烧反应的机理为：第一步，氧气吸收光子形成游离态氧原子，每摩尔氧气吸收 1mol光子；第二步，碳与游离态氧原子作用生成CO ，每生成 1molCO发出 1mol光子；第三步，CO与氧分子作用生成CO2 ，该步骤既不吸收光子，也不发出光子。

The problem of how to make best use of the residual coal gas had been discussed.

针对我国小型高炉炼铁工艺提出了一套新的改造方案； 8。

Our sales fluorite mainly used for industrial smelting, iron smelting, steel and ferro-alloys of flux, slagging agent, production of raw materials for artificial cryolite.

我司销售的萤石主要用于工业冶炼，炼铁、炼钢和铁合金的助熔剂、排渣剂，生产人造冰晶石的原料。

However, the conventional methods of preheating air and gas are difficult to satisfy the requirement.

高炉炼铁使用高风温是当今世界炼铁技术发展的方向。

A flowsheet consists of three stages of fine grindings,two stages of gravity separations and a screening process was adopted to recover iron from iron-smelting slag ,and reduced iron powder with MFe exceeding 90% can be prepared.

为了有效回收炼铁渣中的铁，对炼铁渣进行三级细磨、二级重选以及一段筛分处理，制得了MFe含量90%以上的还原铁粉，实验表明2 t粉铁可制取出1 t还原铁粉，残渣则可用于制作陶瓷、免烧砖等，实现了资源综合利用。

In last five years, the iron making technology has got a great progress in China.

近 5年来，中国炼铁技术取得了长足进展，以宝钢、梅山、新兴铸管等企业为代表的一批企业炼铁技术水平达到国际先进水平或国际水平。

In the first period of the history of making iron dating back to ancient times, the way of making: iron was very crude indeed.

炼铁历史的第一阶段可以追溯到古代，炼铁的方式确实太原始。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。