The preventive measures for the harmful defects of alkali metals are as follows: 1, reducing the alkali metals content in the raw materials; 2, increasing the MgO content of the sinter , decreasing the basicity of slag , decreasing the Si content of the pig iron, increasing relative slag volume; 3 , introducing prereduced ore pellets or partly reducted sinter; 4increasing the ability of coke resisting alkali metals; 5, using refractories that have the ability of resisting corrasion of alkali metals; 6 , cleaning the blast furnace periodically. The above recommendations are necessary for decreasing the circulation and accumulation of alkali metals effectively in blast furnace, reducing the harmful influence of alkali metals on blast furnace, increasing the smelting intensity, decreasing the coke rate, improving the gas permeability.

基于堿金屬對高爐冶煉的上述危害日本人V精品视频一区，本文結合湘鋼高爐的實際生產情況，通過理論分析日韩手机色自拍图片小说、計算以及其他鋼廠防治堿害的經驗女性黄色下体免费照片和视频永远免费，提出防治高爐堿害的措施：1、減少入爐原中国一级黄色尤物网站、燃料的堿金屬含量操逼网av；2黑人一级A片欧美一级A片、提高燒結礦中的MgO含量、降低爐渣堿度A片爽爽爽免费看视频网、降低生鐵含硅量国产成人精品热播亚洲AV、適當增加渣量；3先锋5566资源网站资源、采用預還原的金屬化球團或部分還原的燒結礦日韩揉揉人人澡澡人人；4、提高焦炭的抗堿能力免费污黄视频网站；5采用抗堿侵蝕的耐火材料a级三级片网站；6、周期性性洗爐你懂的视频在线，以有效地減少堿金屬在高爐內的循環(huán)富集午夜影院操久久久，降低堿金屬對高爐的危害，提高高爐的冶煉強度国线播产色产黄，降低焦比亚洲heyzo无码精品，改善高爐透氣性。

At the same time, the content of MgO of BF slag to increase 0.35 % reached 7.8-8.0%,the meltability temperature and viscosity of slag reduced, the fluidity of slag from 115mm impromed to 170mm, the iron loss from 7.09% decreased 5.15%, pig iron yield decreased 18t/d ,and comprehensive coke ratio declined 6.57kg/tp by indexes correction, effects of saving coke was significant ,and technical parameters of sinter and BF were optimized and improved,so that the content 7.8-8.0%of MgO of BF slag is suitable level.

高爐渣中MgO 含量提高0.35%達到7.8-8.0%综合日韩，爐渣熔化性溫度與粘度下降欧美XXXXHDVideos，爐渣流動性由115mm提高到170mmm，鐵損由7.09%降低到5.15%丁香欧美亚洲小说在线观看，校正后產量小幅了下降18t/d26uuu欧美综合，但綜合焦比下降了6.57kg/tP，節(jié)焦效果顯著人人操大屁股，同時燒結與高爐的工藝參數(shù)得到優(yōu)化與提升超碰青春娱乐网，爐渣MgO含量7.8-8.0%為較適宜水平。

And coke, pig iron, the export business.

及焦炭黄片免费进，生鐵一级视频a，的外銷業(yè)務。

The following are the main export goods we are dealing: antimony oxide.copper,scrap steel.pig iron,products made of tungsten,metal zinc,ferro alloy rare earth,coke,alumina,tin ingots,cement,fluorspar lump,magnesium oxide light and dense,talc lumps,barite,aluminium(processing with incoming materials and re-exporting),gypsum,iron nails,iron wire,calcium carbide,sodium sulphate anhydrous,ferrousmetals,nonferrousmetals,nonmetals,machines,apparatus and instrument,industrial and agricultural tools etc.we are also agent for importing and exporting the above products.

經營范圍：我公司經營的主要出口商品有：銻亚洲色图欧美色图观看日本一道、氧化銻.精品国产首页,、銅材、廢鋼国内色站、生鐵在线视频播放A片、鎢制品、鋅人妻啪啪色视频、鐵合金老女偷偷伦偷偷啪、稀土、焦碳、礬土亚州黄色网站中文字幕、錫錠在线网址你懂、水泥、砩石塊800凹凸视频在线观看网址、輕燒鎂免费看黄网站AV无码app下载、滑石塊、重晶石塊69人人操人人爱、鋁材欧美孕交视频、石膏塊、鐵釘www欧美操逼视频、鐵絲这久久精品、電石美女黄片视频免费观看、元明粉国产综合精一区二区在线观看、黑色金屬、有色金屬欧美精品热视频在线观看、非金屬礦產品黄片A片视频免费在线观看、機械設備、儀器儀表人看人爽人操人摸人日人碰、工農具等最新黄色视频在线播放，并代理上述商品的進出口業(yè)務。

Products registered trademarks of the company as "55" brand products include: ductile iron pipe, cast iron, steel making pig iron, all kinds of pipe fittings, chemical cauldron, coke oven and other equipment and other castings.

公司產品注冊商標為&55&牌欧美精品A∨欧洲精品，產品主要有：球墨鑄鐵管妇女人人操人人干、鑄造生鐵、煉鋼生鐵色噜噜午夜午伦视频一区二区、各種管件欧美成性互相、化工大鍋、焦爐設備及其它鑄件等一级做性色a爰片久久毛片体验区。

The company is located in casting raw material base, rich in a large number of pig iron and coke, and good quality, fully able to meet production needs.

公司所在地為鑄造原材料基地色色网五月，盛產大量的生鐵和焦碳，且質量較好av体验区，完全能滿足生產的需要性爱不卡视频网站。

The company also operates domestic and international trade, main products include: iron and steel products, iron ore, coal, coke, pig iron and so on.

公司還經營國內、國際貿易日韩一级毛一片欧美一级ww，主要產品包括：鋼鐵產品国产精品JIZZJIZZ、鐵礦石、煤黄色片黄色的视频、焦碳女性毛片A、生鐵等。

Heng Bo supplies seamless pipe, senior market analyst, said: At present the majority of iron inside the steel-making pig iron inventories not try for the impact of the demand by the steel mill, a lot of iron re-turn to the production of pig iron for steel-making, according to Iron Works to reflect , due to increased market demand for raw materials and coke prices up, market confidence has been restored, but the production of iron cast iron is still no intention to resume, the market demand will soar to a height of what the market is not expected to unity, on the current situation, the prudent operation of the steel-making pig iron is still the main way to run.

恒博物資的資深無縫管市場分析師表示：目前多數(shù)鐵廠內煉鋼生鐵庫存量不大，受鋼廠需求拉升影響A级黄色网站免费看，很多鐵廠再度轉向對煉鋼生鐵的生產国产操av，據鐵廠人士反映，由于市場需求加大和焦炭等原料價格的上行亚洲欧美天堂在线，市場信心有所恢復丝袜AV观看一区，但停產的鐵廠暫時還沒有恢復生鐵的打算，市場需求會升到一個什么樣的高度国产精品亚洲精品91，市場預期并不統(tǒng)一国产免费黄片视频，就目前的形勢來看，謹慎操作依然是該煉鋼生鐵運行的主要方式1313久久午夜精品片。

Main management: nonferrous metals, ferroalloy, sand series, pig iron, coke, waste metal, waste stainless steel (304,316) and casting equipment (smelting unit, core making equipment, shakeout equipment, cleaning equipment, sand preparing machine, moulding equipment, self-setting resin sand and silicate-bonded sand equipment, various instrument and meter), spares.

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