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煤焦化验讑֤是检煤炭和焦炭各项质量指标的化验A器,大量事实证明Q煤焦化验设备出现的误差中,采制样占八成以上Q要x高煤焦化验设备测试结果的准确性,p掌握采制h法?</p> <p style="text-indent:2em;"> 一、煤焦化验设备的取样ҎQ?</p> <p style="text-indent:2em;"> 1、取样工P </p> <p style="text-indent:2em;"> 铁锹、新塑料袋(取样Ӟ、؜L、؜样铲?</p> <p style="text-indent:2em;"> 2、取h法: </p> <p style="text-indent:2em;"> ①在卸Rq程中取P在新料面上进行,焦炭同一个单?车ؓ一个综合样Q综合样质量不少?0? </p> <p style="text-indent:2em;"> ②R厢采用焦炭试P应在卸Rq程中的新料面上q行Q根据焦炭批量的大小Q取水䆾及工业分析试P取样重量不少?0? </p> <p style="text-indent:2em;"> ③每个基本试样不于30个试P份样重量2㎏左叟?</p> <p style="text-indent:2em;"> ④所取的焦炭试样Q在~分场地q行现场~分Q用堆锥四分法充分؜匀~分Z于6㎏带回拌样室?</p> <p style="text-indent:2em;"> ⑤将试样带回拌样室后Q倒入q净的样盘中Q用样铲把样品搅拌均匀Q四分法~分后取四分之一留底P攑օ密码,保存一周,另四分之?人同旉到制样室,不少?㎏,取制样员同时核对密码q签收?</p> <p style="text-indent:2em;"> 二、煤焦化验设备的制样Ҏ(制样_碎?Q?</p> <p style="text-indent:2em;"> 1、收到样品后登记Q写好试样带上的密码、品名、班别、日期?</p> <p style="text-indent:2em;"> 2、将收到的样品用样铲均匀|入颚式破碎ZQ破至?3㎜以下,直至全部试样破碎完ؓ止?</p> <p style="text-indent:2em;"> 3、把破碎后的样品q一步搅拌均匀Q羃分出500g试样2份,一份做水䆾Q一份装入大L中,攑օ密码留底样Q保存一周?</p> <p style="text-indent:2em;"> 4、水份试L:?00g攑օq燥盘中q铺Q在170℃?80℃干燥箱内烘1时后,自然降温10分钟Q称样重q几ơ恒重后Q计出焦炭的水份百分比Q?</p> <p style="text-indent:2em;"> 其中WQ焦炭试L水䆾含量?</p> <p style="text-indent:2em;"> mQ干燥前焦炭试样的重量(gQ?</p> <p style="text-indent:2em;"> m1Q干燥后焦炭试样的重量(gQ?</p> <p style="text-indent:2em;"> 三、煤焦化验设备的存样Ҏ </p> <p style="text-indent:2em;"> 1、应该保持不于1千克的煤焦试样备查,需要利用自口袋或者严密的Ӟ保持原有的水分不蒸发?</p> <p style="text-indent:2em;"> 2、备查煤焦试样保质期?0天?</p> <p style="text-indent:2em;"> 3、如想长久保存,需要制备成I气q燥煤样Q存在磨砂广口瓶中,保质期ؓ6个月?</p> <p style="text-indent:2em;"> 煤焦化验是一规范性非常强的工作,每一个环节都要认真、按照煤焦化验设备的要求Q进行相x作?</p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> <br /> </p> </div> <div class="relatv"> <p class="uppage"> <div>上一?<a href="146.html">煤的高温燃烧中和法定测?/a></div> <div>下一?<a href="144.html">全自动量热A与智能的量热仪的区别</a></div> </p> </div> </div> <div class="tag"> ♥ 相关标签Q?a href='/key.aspx?k=%e7%85%a4%e7%82%ad%e5%8c%96%e9%aa%8c%e4%bb%aa%e5%99%a8'>煤炭化验仪器</a>,</div> <div class="rtt"> •相关新闻</div> <hr /> <div class="infons"> <ul> <li><a 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