微电脑控制水质处理技术设计与实践

在铁合金冶炼2×16 500 kVA电炉循环冷却水系统的设计中,将微电脑控制水质处理技术应用于电炉闭路循环冷却水的自动控制,使用NKC-3405缓蚀阻垢剂、NKC-615杀菌灭藻剂,对电炉循环冷却水存在腐蚀、沉积物及菌、藻类微生物的情况,将人工加药控制改为微电脑自动加药及控制,减少人为误差,实现加药自动化,取得了较好的效果。     

软化水处理技术在电炉循环冷却水中的应用

介绍了软化水处理技术在2 ×6.3 MVA电炉和4×5 MVA电炉循环冷却水系统的应用情况,并对电炉循环冷却水处理方法进行了初步探讨.     

氧化铝循环废水处理自动化控制系统设计研究

氧化铝循环废水处理自动化控制系统在原有的硬件基础上,设计了型号为MDV-17014S280G-P280的废水自动化处理工控机,通过设置废水自动化处理工控机控制点位,提高控制系统硬件性能;首先设计加药反洗控制模块,设定加药反冲洗氧化铝循环废水的频率;设置控制字段,将控制结果更新至数据库,完成对氧化铝循环废水处理自动化控制。实验结果表明,与传统系统相比,设计系统控制阀值更高,可以实现对氧化铝循环废水处理自动化控制。     

澳斯麦特炉铜冶炼熔炼综合能耗控制实践

阐述了澳斯麦特炉铜冶炼综合能耗控制生产实践。通过控制稳定的炉膛温度、减少烟气量、减少精矿带入水分、炉体冷却水并调节燃料组成比例控制熔炼煤耗;控制电炉入炉熔体的温度、电炉炉膛温度及温差、炉膛负压、调整电压级及其电极插入深浅控制电炉电耗;通过加强加强定额管理,减少氧气排空,降低氧气消耗。     

电炉循环冷却水系统的余热利用与研究

介绍了电炉循环冷却水系统余热回收原理,并结合工程实例分析了该套余热回收装置在工程中的实际应用情况,该工程项目具有良好的经济效益和社会效益,为今后国内电炉的升级改造及新上电炉循环水系统的设计优化提供借鉴。     

GE—Ⅱ型自动控制可调定量加药机

该机采用微电脑自控定量加药,主要用于矿石浮选作业加药,以及冶金萃取、化工、选煤等其他工业部门等需要定量加液的场合。该机技术性能与特点:一台机可控制15个加药(液)点。每点可独立调节加药量和开     

离子棒在连铸循环冷却水系统的应用

通过离子棒在连铸循环冷却水系统中的应用实例,介绍了离子棒的工作原理,对离子棒技术与常规加药技术的处理效果上进行了对比.     

制氧机循环冷却水系统电子水处理器的应用

武钢氧气公司两台30000m^3／h制氧机循环冷却水在加药过程中，药剂对压缩机的冷却器腐蚀严重．造成巨大损失。通过采用电子水处理器，确保循环冷却水的水质达到要求，有效地降低成本消耗，延长机器的使用寿命。     

电炉循环冷却水的处理

介绍杭钢８０ｔ电炉循环冷却水处理方案药剂投加方法、水质处理以及管网系统的清洗、预膜工作，总结了水质管理的经验。     

电弧炼钢炉倾动机构的研究

电弧炼钢是一种以废钢作为主要炉料,用电弧产生的高温作为热源,进行熔化和冶炼的工艺过程。广泛地应用于机械制造工厂和钢铁联合企业中,成为生产过程中的一个重要环节。 电炉(主体结构如图1)由炉盖1、炉体2、电极3及摇架4组成,配有炉盖启闭机构,炉体进出机构,电极升降机构和电炉倾动机构,及其各自的传动系统,分别适应装料、熔化、冶炼、排渣、精炼和出钢的工艺操作要求;还配有电力系统,压缩空气系统,循环冷却水系统和排烟除尘系统,向电炉供电、供气、供冷却水和排烟除尘。还配有起重运输设备,用作吊运炉料、渣罐、盛钢桶和更换电极等工艺操作。     

熔炼次数对M17返回料合金成分、组织和性能的影响

实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。     

China's Major Non-ferrous Metals Imports & Exports

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Zinc Production by Province in 2014

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80% of Chinese Firms Purchasing Overseas Mines Ended up in the Red

<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic     

Copper Processing Profit Dropped Sharply,Copper Consumption Will Face Impact in the Second Half of the Year

正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,     

Central Geological Prospecting Fund Newly Added 16.47 Million Tonnes of Bauxite in 2013

正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF     

Manufacturers of Copper Tube for Central Air Conditioner Use Face Mounting Pressure in the Final Quarter of the Year

正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure     

Xinjiang Ranks No.1 in Production of Primary Aluminum in China

正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,     

Shenhuo Coal Industry and Electricity Power Completed800,000 t/a Aluminum Project in Xinjiang

正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.     

Guangdong Metal Transaction Center has Become the Second Largest Precious Metal Transaction Platform Nationwide

正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.