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The sustainability of valuable metals—recycling of residues from stainless steel production

Baosteel Technical Research 2010年第S1期4卷 136-页

作者： kristina beskow Andreas RUH Christoffer LUNDSTRM Uan Hagfors Teknologi AB Djursholmsvgen 30 SE-18352 TbySweden Befesa Steel Services GmbH Albert-Hahn-Str.9 47269 DuisburgGermany

The European stainless steel producers generate 20 -30 kg dust per ton of produced stainless *** dust formed during various stages of the production process contains valuable metals such as Cr,Ni and *** general this dust is considered as a hazardous *** not taken care of the dust will be an environmental risk causing potential problems such as leaching of heavy metals into groundwater and pollution of land and *** applying techniques for recycling the dust the problem is minimized and valuable metals are recovered and re-used as raw material in the steel making process,leading to a significant reduction of the consumption of natural resources to decelerate the climate change and ensure a sustainable *** of the business segments of Befesa Zinc S.L.U.,a subsidiary company of Abengoa,is the recycling of dusts and other residues containing nickel,chromium and molybdenum from the stainless steel *** technologies applied are submerged arc reduction smelting(Befesa Valera S.A.S.,Gravelines,France) and plasma reduction smelting(Befesa ScanDust AB,Landskrona,Sweden).Stainless steel plant dusts,mill scale and other residues are delivered in closed containers and big bags by ship,rail or truck and *** a preparation of the residues and charging into the pyrometallurgical furnace,the metal compounds contained in the charge are reduced to metals in the presence of the carbon *** Befesa ScanDust,the regularly tapped liquid metal is cast in the form of granules via the Granshot^(?) granulation *** granulated product has many advantages such as excellent preheating properties and fast melting when added to a metallurgical *** granules size and shape also makes it very suitable to handle with most raw material handling *** granulating the so-called alloyed pig iron(API) a high metallic yield is achieved ensuring maximum recovery of metal and less new dust generation compared to a crushed *** granules

关键词： recycling stainless steel dust Befesa Granshot metal granulation sustainable development

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WAVESURFER - AN OPEN SOURCE SPEECH TOOL

WAVESURFER - AN OPEN SOURCE SPEECH TOOL

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6～(th) International Conference on Spoken Language Processing

作者： Kare Sjlander Jonas beskow Centre for Speech Technology KTHDrottning Kristinas v(?g 31. SE-100 44 Sweden Centre for Speech Technology KTHDrottning Kristinas v(?g 31. SE-100 44 Sweden

＜正＞In the speech technology research community there is an inereasing trend to use open source solutions. We present a new tool in that spirit. WaveSurfer, which has been developed at the Centre for Speech Technology at KTH. It has been designed for tasks such as viewing, editing, and labeling of audio data. WaveSurfer is built around a small core to which most functionality is added in the form of plug-ins. The tool has been designed to work on most common platforms and with the aims that it should be easy to configure and extend. WaveSurfer is provided as open source, under the GPI. license with the explieit goal that the speech community jointly will improve and expand its scope and capabilities.

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铁合金粒化——工业生产成果和产生细粉的比较研究

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铁合金 2018年第3期49卷 19-24页

作者： P.Vesterberg K.beskow C-J.Rick 刘军(译) 史万利(译) UHT SE-16440希斯塔科技园交城义望铁合金有限责任公司中国铁合金工业协会

为了满足铁合金生产企业及消费铁合金的钢厂的需求,人们研究颗粒化金属的粒化工艺并发现了粒状铁合金的几个重要特性。粒化工艺是铁合金生产中一种工业化的、高产量的固化过程,替代了传统的、粗放型的浇铸、破碎和筛分工艺。该过程产生... 详细信息

为了满足铁合金生产企业及消费铁合金的钢厂的需求,人们研究颗粒化金属的粒化工艺并发现了粒状铁合金的几个重要特性。粒化工艺是铁合金生产中一种工业化的、高产量的固化过程,替代了传统的、粗放型的浇铸、破碎和筛分工艺。该过程产生最少的细粉,具有最低的高价铁合金产品损耗。颗粒化的铁合金是一种均质的、纯净的产品,满足了标准日益严格的纯净钢材的生产需求。钢材制造商要求合金具有一定形状和尺寸,以适用于不同冶金工艺的自动化处理和使用。目前粒化的镍铁合金是市场上的标准样式。文章利用20多个装置实验,说明铁合金颗粒化的研究结果,并针对铬铁破碎和粒化两种工艺产生的筛下物进行对比。

关键词：凝固造粒铁合金铬铁合金镍铁合金颗粒细粉

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