冶炼

Dongguan Branch have steel construction project national first class qualification of responsibility contracts on specialities, the construction work of the house constructs and always contracts one grade , smelts the project to always contract one grade, adopt " H section steel steel construction energy-conserving residential housing system " technology belong to at home leading technology, have good market prospects.

山东莱钢建设有限公司东莞分公司拥有钢结构工程专业承包国家一级资质、房屋建筑工程施工总承包一级、冶炼工程总承包一级，采用&H型钢钢结构节能住宅建筑体系&技术属国内领先技术，具有良好的市场前景。

With the greater demand of sulfureted antimony slag for market, the slag was become more and more after the process of selecting and smelting mine, whereas, the most slag freely placed wasn't disposed and treated in some degree. Meanwhile, there were some sulphur and valuable metals in the slag.

随着市场对硫化锑矿石的需求量越来越大，选矿之后和冶炼后产生的矿渣也越来越多，大多数矿渣随处堆放未作处理和治理，另外矿渣中含有一定的硫磺和贵重金属资源。

The production standards are GB、API、ANSI、DIN、JIS;the type of connection is threaded、flanged、wafered connection with manual drive、electricity drive and pneumatic drive,Our products are widely applicable to petroleum and chemical industry、power plant、smeltery、paper pulp、textile、pharmacy producing and food processing.

产品按用户需要采用GB、API、ANSI、DIN、JIS等国内国际先进标准；主要连接形式为螺纹式、法兰式、对夹式；驱动方式有手动、电动及气动等。产品广泛应用于石油、化工、电力、冶炼、造纸、纺织、医药、油脂、食品等领域，深受用户信赖。

The 'acid' Bessemer process, as the Victorian ironmasters discovered , could not eliminate phosphor, which is harmful to steel, so low phosphoric pig irons had to be used.

维多利亚女王时代的铁器制造商发现，酸性贝塞麦工艺不能去除对钢有害的磷，所以必须用低磷生铁进行冶炼。

In order to improve the operation of BF,both burden material benefication and operation were optimized.The new sintering and pelleting technology,optimized burden structure and new coking technology are used and hearth activity,gas stream distribution have been improved for smooth operation.

为提高白云鄂博特殊矿高炉强化冶炼技术水平，在高炉精料和操作技术两大方面进行了优化，前者包括烧结和球团新技术应用、高炉含铁炉料结构优化、炼焦配煤优化；后者涵盖提高炉缸活跃性、改善煤气流分布及顺行状况等措施。

In the steel-making process of electric arc furnace, the endpoint parameters, i.

在电弧炉冶炼生产过程中，出钢温度、碳含量和磷含量等终点参数直接关系到后续生产工艺，甚至影响产品质量。

Among them, the rapid decline in industrial output value of industry of petroleum and natural gas industry, the waste of resources and waste material recycling processing industry, wood processing and wood, bamboo, rattan, palm, grass products, ferrous metal smelting and rolling processing industry, chemical fiber manufacturing, leather, fur, feathers and its products industry, gas production and supply industry, chemical materials and chemical products industry.

其中，工业总产值下降较快的行业有石油和天然气开采业，废弃资源和废旧材料回收加工业，木材加工及木、竹、藤、棕、草制品业，黑色金属冶炼及压延加工业，化学纤维制造业，皮革、毛皮、羽毛及其制品业，燃气生产和供应业，化学原料及化学制品制造业。

Brief description is given to the test on the technology for comprehensively recovering gold and silver from tellurium-bearing slag: Tellurium-bearing slag is ground and leached with water to produce crud tellurium dioxide which is then purified through ion precipitation and complexing purification process; leaching reside is leached with chloride to produce copper and bismuth, bismuth oxychloride is recovered through neutralization and hydrolysis and sponge copper is recovered through cementation; gold and silver in the remaining residue can be recycled to the gold and silver smelting system for recovery.

文摘：简述了碲渣综合回收金银等的工艺试验：碲渣经磨矿水浸碲产出粗二氧化碲，用离子沉淀和络合净化法提纯；浸碲渣用氯盐浸出铜铋，中和水解回收氯氧铋，置换回收海绵铜；残留渣中的金银可返回金银冶炼系统回收。

The design for a representative of oxygen blowing the top of each furnace for the production of 300 tons of liquid steel, and smelting time is 36 minutes.

本设计为具有代表性的氧气顶吹工艺，转炉的公称容量为300吨，冶炼时间需要36分钟。

As sulfuric acid , prepared from blowing furnace flue gas in the copper sulfide ore smelting, is easy to get reddish, blackish and greenish, reasons are found through analysis and detection, flame color reaction and hanging experiment in combination with the production process.

针对利用硫化铜矿冶炼吹炼炉烟气制得的硫酸易发红、发黑和发绿的情况，结合生产工艺，利用分析检测、焰色反应和挂片实验等手段，明确了原因。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失