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background="/im/gs_t_line.jpg"> </td> </tr> </table><div class="content"> <div class="newtitle">什么是膨胀珍珠岩？</div> <div style="text-align: center;background-color:#F7F7F7">发布时间：2012/5/19 16:20:49 来源：<span class="infoCol">本站原创</span> 点击：<Script Language="Javascript" Src="/item/GetHits.asp?Action=Count&GetFlag=0&m=1&ID=1266"></Script>次 <script type="text/javascript" language="javascript"> function ContentSize(size) {document.getElementById('MyContent').style.fontSize=size+'px';} </script> 字体：<a href="javascript:ContentSize(16)">大</a> <a href="javascript:ContentSize(14)">中</a> <a href="javascript:ContentSize(12)">小</a> </div> <div style="margin-top:20px;"><div id="MyContent"><p align="center" class="MsoNormal" style="margin: 0cm 0cm 0pt; layout-grid-mode: char; text-indent: 36pt; text-align: center; mso-char-indent-count: 2.0; mso-layout-grid-align: none; punctuation-wrap: simple; mso-line-break-override: restrictions"> <span style="font-size: 18pt; font-family: 黑体; mso-font-kerning: 0pt; mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体"><font color="#000000">什么是膨胀珍珠岩？<span lang="EN-US"><o:p></o:p></span></font></span></p> <p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; layout-grid-mode: char; text-indent: 28pt; line-height: 25pt; text-align: left; mso-char-indent-count: 2.0; mso-layout-grid-align: none; punctuation-wrap: simple; mso-line-break-override: restrictions; mso-line-height-rule: exactly"> <span style="font-size: 14pt; font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><font color="#000000"><a href="http://www.xyzkbw.com">膨胀珍珠岩</a>是珍珠岩矿砂经预热<span lang="EN-US">,</span>瞬时高温焙烧膨胀后制成的一种内部为蜂窝状结构的白色颗粒状的材料。其原理为<span lang="EN-US">:</span>珍珠岩矿石经破碎形成一定粒度的矿砂<span lang="EN-US">,</span>经预热焙烧<span lang="EN-US">,</span>急速加热<span lang="EN-US">(<st1:chmetcnv hasspace="False" negative="False" numbertype="1" sourcevalue="1000" tcsc="0" unitname="℃" w:st="on">1000<span lang="EN-US"><span lang="EN-US">℃</span></span></st1:chmetcnv><span lang="EN-US">以上),</span></span>矿砂中水分汽化<span lang="EN-US">,</span>在软化的含有玻璃质的矿砂内部膨胀<span lang="EN-US">,</span>形成多孔结构<span lang="EN-US">,</span>体积膨胀<span lang="EN-US">10-30</span>倍的非金属矿产品<span lang="EN-US">.</span>珍珠岩根据其膨胀工艺技术及用途不同分为三种形态<span lang="EN-US">:</span>开放孔<span lang="EN-US">(open cell),</span>闭孔<span lang="EN-US">(closed cell),</span>中空孔<span lang="EN-US">(balloon)</span>。 <span lang="EN-US"><o:p></o:p></span></font></span></p> <pre style="text-indent: 28.1pt; line-height: 25pt; mso-char-indent-count: 2.0; mso-line-height-rule: exactly"> <b style="mso-bidi-font-weight: normal"><span style="font-size: 14pt; font-family: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'">膨胀珍珠岩</span></b><span style="font-size: 14pt; font-family: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'">是煤气发生炉生产出来的，加热温度<font color="#000000"><span lang="EN-US">1200</span>度左右， 产量每天<span lang="EN-US">60-90</span>吨。膨胀珍珠岩产品当浮力超过自身重力时，膨胀的矿砂颗粒开始随炽热气流上升，并继续受热、膨胀。膨胀珍珠岩颗粒随热风达到窑顶后受到引风机引导转向引入水冷水平分离器和旋风分离器，完成产品定型分离。<span lang="EN-US"><o:p></o:p></span></font></span></pre> <p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; layout-grid-mode: char; text-indent: 28pt; line-height: 25pt; text-align: left; mso-char-indent-count: 2.0; mso-layout-grid-align: none; punctuation-wrap: simple; mso-line-break-override: restrictions; mso-line-height-rule: exactly"> <span style="font-size: 14pt; font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><font color="#000000"><a href="http://www.xyzkbw.com">膨胀珍珠岩</a>堆积密度有<span lang="EN-US">70<st1:chmetcnv hasspace="False" negative="True" numbertype="1" sourcevalue="250" tcsc="0" unitname="kg" w:st="on">-250kg</st1:chmetcnv>/m</span>³，导热系数在<span lang="EN-US" style="mso-bidi-font-weight: bold">0.0323-0.0455w/m</span><span style="mso-bidi-font-weight: bold">·<span lang="EN-US">k</span>之间，粒径有<span lang="EN-US">0.15<st1:chmetcnv hasspace="False" negative="True" numbertype="1" sourcevalue="3" tcsc="0" unitname="mm" w:st="on">-3mm</st1:chmetcnv>,2<st1:chmetcnv hasspace="False" negative="True" numbertype="1" sourcevalue="3" tcsc="0" unitname="mm" w:st="on">-3mm</st1:chmetcnv>,3<st1:chmetcnv hasspace="False" negative="True" numbertype="1" sourcevalue="5" tcsc="0" unitname="mm" w:st="on">-5mm</st1:chmetcnv>,4<st1:chmetcnv hasspace="False" negative="True" numbertype="1" sourcevalue="7" tcsc="0" unitname="mm" w:st="on">-7mm</st1:chmetcnv></span>四种主要类型。</span><span lang="EN-US"><o:p></o:p></span></font></span></p> <p class="MsoNormal" style="margin: 0cm 0cm 0pt; line-height: 25pt; mso-line-height-rule: exactly"> <span lang="EN-US" style="font-size: 14pt"><o:p><font color="#000000" face="Times New Roman"> </font></o:p></span></p></div> </div> <div style="background-color:#F7F7F7;margin-top:15px;padding:10px;">上一条：<a href="/html/xwzx/jszs/1265.html" title="西南首届建筑建材防火保温应用技术研讨会召开">西南首届建筑建材防火保温应用技术研讨会召开</a><br /> 下一条：<a 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