控制火车运行时速 提高轨道衡的准确度.docx

掌握火车运行时速提高轨道衡数据的精确度一、部门概况：检测计量中心计量班组成立于2005年，现有职工27名，主要有汽车衡、火车衡、检尺、统计岗位。负责全厂的煤、石脑油、醇类等化工原料、丙烯酸系列产品、乙烯系列产品等的过衡、检尺、管道结算等计量工作。截止到10月底，仅火车衡岗位，共完成石脑油8236车，甲醇79车，乙醇76车，丁醇35车，丁酯110车，乙二醇80车，混合苯95车，产品和原料过衡共17422车、总吨位达55万余吨；完成煤过衡6120车次，重量20余万吨。计量站肩负着工厂全部的进出原料和产品的计量工作，每天都有成百上千吨的进出量，真可谓失之毫厘，谬之千里，过衡数据的精确程度，直接影响着我厂的经济利益的得失盈亏。二、存在问题：长期以来我厂火车灌装产品的复检率始终居高不下，基本70280%的罐装产品轨道衡计量数据和手工检尺数据相差超过了规定限值，需要检尺人员到厂区外的轨道上爬上罐车，打开铅封和罐车盖,重新手工检尺，但通过数据对比分析，每次复检的数据与第一次检尺结果基本全都，这说明是轨道衡的数据消失了偏差。下表是轨道衡数据和复检后两次检尺结果的对比产品车号轨道衡净重（吨）第一次检尺量（吨）复检量（吨）尺衡对比差量（吨）两次检尺差量（吨）乙二醇031056548.12047.29047.3180.8300.028乙二醇031338648.14047.19347.1230.9470.070乙二醇031365850.15049.54349.4760.6070.067乙二醇031363646.36045.76545.6730.5950.092乙二醇031363147.17046.53646.4570.6340.079混合苯031335245.56045.04744.9650.5130.082混合苯031332045.67044.95644.8660.7140.090粗苯031333644.65043.97443.9980.7760.024丁酯031354746.61046.93946.887-0.3290.052丁酯031364648.68048.17848.283-0.5020.105从以上数据可以看出，两次检尺差量最大只有0.105吨，而尺衡对比相差较大，可以断定检尺没有问题，问题可能出在轨道衡。轨道衡的计量数据的偏差，不仅可能给工厂带来物料结算损失，而且由于复检率高，也给原来岗位人员就紧急的检尺人员增加了很大的工作量，还铺张了大量的铅封。三、详细实施：针对轨道衡数据偏差大这一问题，引起中心领导的高度重视，并将此项问题列为了2022年降低损失率的重点工作之一，上报工厂，领导亲密关注，在于增田厂长的亲自主持和组织下，运输车间、生产部、机动部、企管部和检测计量中心联合行动，对此项问题进行了分析试验活动。通过现场考察和参考相关理论资料，分析认为火车的行使速度和运行状态可能是影响轨道衡数据精确度的主要因素。在运输车间的大力帮助下，在4月先后进行了两次试验包括空车和重车两部分，重车介质为石脑油，火车在5-7、5-8、8-9.9-10kmh等不同车速下重复性进行推、拉不同车速过衡试验。序号车速(8-9)车速（5-7）车速(8-9)车速（5-7）极差重量（推）重量（推）重量（拉）重量（拉）重量161.5062.0461.6762.160.66260.5361.1260.6561.180.65361.0961.6361.2461.720.63461.3161.8261.4862.030.72561.0861.5661.2161.610.53661.4661.9961.7462.300.84760.1960.7360.4060.790.60860.2660.7960.4060.830.57960.6761.2461.0061.460.791060.5261.1660.8161.180.661160.0260.5460.0760.650.631260.2960.8560.6761.040.751361.1961.8661.1261.740.741461.0361.7461.5162.071.041561.2061.5461.5261.710.511661.0861.9961.3962.040.961761.6761.9362.0262.310.641862.3662.8962.2962.640.601961.9162.5562.1362.610.702060.5560.7761.0661.360.812160.4561.3960.1760.621.222260.7761.1861.1961.590.822360.5861.1860.7060.960.602460.5160.7460.7561.150.642561.2362.0760.8461.441.232660.8661.5261.6562.041.182760.4960.9160.9961.430.942861.3261.9760.9861.510.992960.5461.1760.6861.170.633061.5262.2062.2562.370.853160.6760.9760.9861.570.903260.8161.3260.9961.580.773360.7461.3661.2861.540.803460.3160.9160.7960.860.553560.5560.9060.8761.500.953660.2960.7259.7459.930.983760.4161.0061.1661.791.383862.9263.2063.3163.620.703960.4961.0560.6761.190.704061.3161.8662.0862.300.994162.2361.7761.3962.010.844261.0061.6161.5661.910.914361.0461.6361.3761.680.644460.5961.2361.0561.220.644560.6061.0361.2461.631.034660.0660.6260.5560.950.894760.3361.2561.0360.760.924861.0761.7860.1361.390.714960.0660.6860.6660.970.915060.7061.3260.3961.431.04合计3044.363071.283055.823077.54发1927.51检尺1925.60途耗0.99序号车速(5-8)车速(5-8)车速(9-10)车速(9-10)极差重量重量重量重量重量122.522.6122.3622.550.25221.9222.1522.2222.260.34322.0722.7922.0422.110.75422.2722.1422.3522.660.52521.921.8921.9421.920.05622.2922.3622.4722.070.4722.2222.7322.2822.670.51822.0922.5922.222.320.5922.2722.2722.1722.320.151022.1822.6122.2722.450.431122.4822.2822.5822.540.31221.6121.7421.7621.660.151324.123.932423.990.171422.1722.1222.2622.190.141521.6822.221.7422.230.551622.4622.3722.4222.320.141721.8122.2121.8622.280.471822.1822.5822.4422.560.41922.5722.7222.8822.590.312022.0822.3622.322.10.282122.7222.822.7122.990.282221.821.7721.8721.820.12321.6822.2422.1122.260.582421.9322.4121.8422.470.632522.422.2722.522.220.282621.8922.4321.9622.50.612722.122.3522.1922.420.322821.8922.3322.2722.450.562922.3822.5222.4922.610.233021.9422.3222.0422.370.433122.2222.422.3622.590.373223.6723.6123.8423.780.233323.4623.8623.523.740.43422.4722.6122.6522.610.183522.2922.4422.3922.530.243622.2322.2822.2922.280.063722.1922.4422.4622.4