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电子皮带秤安装与维护
双击自动滚屏 发布者:xzyl 发布时间:2010-3-10 阅读:758次 【字体:

电子皮带秤安装与维护

•  皮带秤在企业计控治理工作中发挥着重要的作用,它有着便于操作、不受现场恶劣环境的影响等优势,特殊是在矿山、冶金等行业的生产、经营过程中有着不可替代的作用。为加强设备管理,积极改善生产过程中影响皮 ...
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•  皮带秤在企业计控治理工作中发挥着重要的作用,它有着便于操作、不受现场恶劣环境的影响等优势,特殊是在矿山、冶金等行业的生产、经营过程中有着不可替代的作用。为加强设备管理,积极改善生产过程中影响皮带秤运行的不利因素,使皮带秤运行质量得到了进一步的提高,为企业的生产经营和成本核算提供了正确可靠的计量数据,保证电子皮带秤在生产中的运行精度以下我们以ICS—ST4型电子皮带秤为例,对其在生产过程中的一些注重事项做简要阐述。我们详细谈一下它的安装与维护。
一.选址
1.电子皮带秤要避免露天安装,须有防雨、防风棚等设施。风力、雨雪及日晒等对称重过程都存在较大影响。
2.应避开输送机皮带张力变化较大的部位。皮带的张力会对秤体产生较大的影响,最好把秤架安装在靠近输送机尾部的位置,称重托辊应装在距离装料点9米以外的位置;另外,距尾部挡料板不得小于5个托辊的间距,这是为了减少皮带接触倒料板产生摩擦的影响。整个称重域内托辊和输送机的支架应有足够的强度和刚度。
3.应避开带有凹形或凸形曲线距离的位置。带有凹形曲线距离的皮带架,由于皮带自身有张力及弹力变化,在空载时受拉力的影响,皮带弹起,对支撑架的受力较小;载荷时,由于重物的压力,皮带贴近支撑架,自身的重量施加于支撑架上;带有凸形曲线距离的皮带架,由于皮带张力及拉力变化,同样,空载与重载时皮带对支撑架的影响较大(如图所示)。所以,秤架的位置应在带有凹形或凸形曲线段8米以外。
4.应尽量避免振动源、腐蚀性气体、强磁场及大型机电设备的干扰,并且将安装秤体的皮带输送机与振动料仓分离,避免振动信号对称重信号的影响。
二.安装
1.秤架的安装要点
任何步骤的安装都必须保证秤架的纵向中央线与皮带机输送架的中心线相重合,秤架上固定称重托辊架的上平面要保证与区域托辊和运行托辊的底面处在同一平面内,误差要保证在0.8mm以内。
2.托辊架的安装
托辊架是指用来支撑运转托辊的钢制支架。
(1)称重托辊架的选取及安装
称重托辊是指固定在秤架上的托辊。称重托辊的径向跳动,承重高度和槽行角的公差应在国家标准答应的范围内,托辊的槽行角应在35°以下,槽型角偏大,势必会引起托辊的不同心度,从而使皮带的柔性变差。称重域内托辊应比两边其它托辊高出6mm左右,且纵向中心线应与输送机架中心线重合,而且与输送机纵向平行。
(2)区域托辊架的安装
区域托辊是指固定在称重托辊两边且对衡器的称量性能有一定影响的托辊,一般每侧各3组。区域托辊的安装办法与技术要求要与称重托辊相一致。
(3)称重托辊与区域托辊的间距要均等,要用对角线的办法确定其间距。
3.电气部分的安装要求
电源部分应尽量避开动力线,亦可采用照明电源,有条件的用户可在电脑积算器电源侧增加电源稳压装置;电气接线盒安装于输送机一侧,应密封好,防止清扫输送机架时,电路板被水浸泡或粉尘进入接线盒内;电脑积算器控制室和现场的距离较远,可达几百米,称重信号线和电力电缆线应分开敷设,且将屏蔽端接好,由于线路损耗较大、称重信号受外界的干扰较严峻,当距离超过600米时,接线应采用6线制接法;电脑积算器和秤体应分别接地,接地电阻应不大于4Ω。
三.维护
1.坚持及时的零点校准
2.校验
3.点检维护
影响电子皮带秤运行的外界因素还很多,检查和排除电子皮带秤的故障,相对其它衡器来说要复杂得多,这就需要操作及维护人员积极学习,了解相关的知识,勤观察、勤动手、多分析、多思索、多总结,不断提高,加强管理,才能有效提高和保证皮带秤的运行精度

 

 
 

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徐州奕隆称重产业园简介

给煤机、皮带秤、电子皮带秤、输送机、给料机是徐州奕隆产业园主营产品,园区集设计、制造、销售于一体,科学设计,科学管理制造,以及先进的销售理念,为奕隆产业园打下良好的口碑与业绩,客户的支持就是奕隆前进的动力。给煤机主要技术参数包括:给煤机额定出力、给煤机中心距、进煤口、落煤口、带宽、主驱电动机型号/功率、清扫电动机型号/功率、给煤机计量精度、给煤机控制精度。电子皮带秤主要技术参数: 皮带秤系统精度:+/-0.25% 称量范围:1~8000t/h 皮带宽度:500~2400mm 皮带速度:0~4m/s 皮带输送机倾角:<6’(特殊物科《/=10’)。给料机技术参数 静态计量误差:≤0.5%; 给料机动态累计误差:≤1%; 控制准确度:优于1%; 仪表电源:单相220V±10%,50HZ; 拖动电源:三相380V±10%,50HZ; 给料机使用环境:温度:-10℃~+40℃湿度:5%~90% 。皮带采样装置分为二级采样和三级采样。二级采样装置常用于物料粒度和流量都较小的情况。三级采样装置通常用于物料粒度和流量都较大的情况。