贾特耶洛奈夫含砷金矿的焙烧方法(四)

来源:网络  作者:网络转载   2019-10-14 阅读:886

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt; tab-stops: 106.95pt 144.0pt">布袋收尘器空气对滤布的比为value="1.9" UnitName="立方英尺">1.9立方英尺/分·平方英尺认为比较低。现今布袋的震动机构是在布袋收尘室两端的压力降达到value="2" UnitName="英寸">2英寸水柱时进行工作,其直接的结果是震动频率由每天的32周降为4周。目前三氧化二烟尘在布袋作用的-边上,可作为过滤介质而聚集起来,这种粉尘的过滤作用与震动频率的相互结合,使布袋收尘器的捕收效率有了明显的改善。

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt" align=center>4  布袋收尘器的工作制度

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normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>工作制度

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>1977年以前

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>    

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">温度

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">230oF

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">220oF

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">布袋震动周期

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">45分钟定时震动

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">压力降低时震动

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">震动频率

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">32/每天

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">4/每天

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">过滤介质

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">奥尔尤全成纤维布袋

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">德垒龙32布袋

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">烟囱砷的排出量(毫克/Scm

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">75~25

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">6~10

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">砷(磅/天)

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">273~760

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 9.35pt; LINE-HEIGHT: 11pt; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly; mso-char-indent-count: 1.04">16~20

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt" align=center>布袋尘的平均品位(重量%

normalTable style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; MARGIN: auto auto auto 5.4pt; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt; mso-border-insideh: .5pt solid windowtext; mso-border-insidev: .5pt solid windowtext" cellSpacing=0 cellPadding=0 border=1>

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>As

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>As2O3

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>Fe

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>Sb

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>Au(盎司/吨)

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>65~72

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>85~95

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>1.0~2.5

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>0.3~0.7

normal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 11pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt; mso-line-height-rule: exactly" align=center>0.10~0.15

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 42.75pt; tab-stops: 106.95pt 144.0pt; mso-char-indent-count: 4.07">平均收尘效率为99.85%

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt; tab-stops: 106.95pt 144.0pt">

normal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt" align=center>过滤介质

normal style="MARGIN: 0cm 0cm 0pt; tab-stops: 106.95pt 144.0pt">

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt; tab-stops: 106.95pt 144.0pt">布袋收尘器最初采用奥尔尤(-种由丙烯腈聚合物制成的合成纤维)作过滤介质,但用各种不同材料制成的过滤布袋进行了广泛的研究后,选用了泼里特斯(porrltts)和斯本塞(speneer)的德垒龙32过滤介质,这种袋子已证明其使用是很可靠的。

normal style="MARGIN: 0cm 0cm 0pt; tab-stops: 106.95pt 144.0pt">    一台变速的气动排风机将已净化的布袋收尘器的尾气送入直径9英尺,高150英尺的烟囱。烟囱气体的标准分析结果如下:

normal style="MARGIN: 0cm 0cm 0pt; tab-stops: 106.95pt 144.0pt">         1.25%SO219.9%O278.5%N20.1%C02、干的分子量为value="29.4" UnitName="磅">29.4/磅摩耳。

normal style="MARGIN: 0cm 0cm 0pt; tab-stops: 106.95pt 144.0pt">    被回收的三氧化二砷之处理:

normal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.75pt; tab-stops: 106.95pt 144.0pt">布袋收尘器每-个工作日平均回收15吨烟尘,这种布袋尘的典型分析结果是(重量%):85~95As2031.0~2.60.3~0.7Sb0.1~0.15Au(盎司/吨)。

normal style="MARGIN: 0cm 0cm 0pt; tab-stops: 106.95pt 144.0pt">    过去几年中,布袋尘被气动运输机送到处在永冻层内的专门地下仓库内,这类仓库是用来贮存As2O3粉尘。在贮仓挖掘完工以后,安装了混凝土隔板以防止任何被贮物料从贮仓中移出。在将布袋尘放人贮仓以前,可能会有-部分粉尘透过地层返回到地面。使用气动运输机压风将地下逸出的布袋尘带入收尘器入口风道。

normal style="MARGIN: 0cm 0cm 0pt; tab-stops: 106.95pt 144.0pt">    现今北美三氧化二砷市场情况有所好转,因而三氧化二砷产品已由亏损变为盈利。

normal style="MARGIN: 0cm 0cm 0pt; tab-stops: 106.95pt 144.0pt">    目前布袋尘被风力输送至15,000立方英尺的园筒贮仓内,这种不纯的三氧化二砷粉尘然后用1500立方英尺的汽车散装载运至美国东南部的精炼厂。为了防止在往园筒贮仓和往汽车上装料时漏尘,贮仓和汽车的装料是在带式收尘器人口风管后面在负压下进行操作(装料)。

normal style="MARGIN: 0cm 0cm 0pt; tab-stops: 106.95pt 144.0pt">

normal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center; tab-stops: 106.95pt 144.0pt" align=center>结语

    由于黄生产的不断发展,为了满足冶金和环保要求,多年来贾特耶洛奈夫矿山有限公司在组合使用硫化矿精矿焙烧和烟气净化系统方面已有所进展。通过改造现有设备,气体净化系统的效率已获得了改善。当前,北美三氧化二砷市场扩大,使得布袋尘的处理已由亏损变为盈利。
标签: 焙烧
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