5.5米捣固型焦炉天然气烘炉方案.doc

目录第一章 1号焦炉烘炉方案简述第二章 烘炉气体流程第三章 焦炉烘炉图表制定第四章 焦炉烘炉前必须完成的主要工作项目第五章 烘炉点火前的准备工作第六章 焦炉烘炉组织体系与人员配置第七章 烘炉点火第八章 烘炉管理第九章 烘炉热修工作 第十章 热态工程施工项目执行时间表第十一章 烘炉材料表 第十二章 烘炉岗位职责和烘炉操作要点第十三章 烘炉安全注意事项 第一章 1号焦炉烘炉方案简述XX公司1×65孔ZHJL5552D型焦炉,由北京XX公司设计,其特点为:双联火道、废气循环、焦炉煤气下喷、空气侧入.炭化室长15.98米,宽520mm,高5.5米 烘炉就是把已经安装了护炉设备的冷态焦炉由常温逐步加热到能够装煤的温度.烘炉是焦炉投产前重要而复杂的工艺过程,其质量的优劣对焦炉的寿命有着至关重要的影响因此对烘炉工作必须给予高度重视烘炉前制定烘炉升温曲线,严格按计划升温,保持焦炉砌体的严密性烘炉干燥阶段的基本原则是要在保障灰缝严密性和砌体完整性的前提下有效地排出水分。

干燥期(100℃)前选定15 天，100℃后的升温期的确定是根据厂方提供的焦炉硅砖膨胀率及采用最大日安全膨胀率(0.030﹪-0.035﹪)计算而得,经计算,升温期为59.5天,烘炉时间共计 74.5天(天然气热值是焦炉煤气的三陪多,900度转正常加热,更换孔板等工作相当麻烦,而且天然气和煤气不宜混合,建议直接升温到装煤开工,启动风机,煤气回炉改正常加热,然后停用天然气并拆除天然气管道设备) 本方案采用天然气及带炉门烘炉,炉温达到850℃-900℃后开始转为正常加热.由于本方案采用气体燃料带炉门烘炉因此采用不砌外部小灶、不砌封墙、装上炉门、在炉门下部专设烘炉孔引入天然气进行烘炉 从常温到转为正常加热前,使用高精度的热电偶及计算机系统进行温度检测和烘炉升温管理.转正常加热后,采用高温计测温并拆除烘炉测温设备为顺利完成烘炉工作,参加烘炉人员应事先进行岗位培训和安全教育第二章 烘炉气体流程 在烘炉过程中砌体各部分遵循一定的升温曲线升温,砌体在一定的负荷下膨胀,避免升温过程中损坏焦炉砌体,破坏砌体的完整性和严密性炉门烘炉孔炉门炉门炉门烘炉孔如图所示：烘炉时加热气体的流向为:炉门烘炉孔→炭化室→烘炉孔→立火道→斜道→蓄热室→小烟道→分烟道→总烟道→烟囱,最后排入大气。

第三章 烘炉图表制定1.硅砖的膨胀率 本方案所采用砖样的热膨胀率数值是烨达耐火材料有限公司提供的2.烘炉图表制定原则3.1根据经验,干燥期确定为15 天,在保证不熄火的前提下,适当增加吸力和空气过剩系数以保证炉体水分的有效排出3.2 升温期的膨胀率确定升温期最大日安全膨胀率采用:300℃以前采用0.025%,300℃以后采用0.030%3.3 炉体高向各区段温度比例烘炉阶段温度比(﹪)烘炉初期T蓄热室∕T燃烧室=0.90～0.95T小烟道∕T燃烧室=0.55(0.7～0.8为宜)烘炉末期T蓄热室∕T燃烧室=0.80～0.85T小烟道∕T燃烧室=0.35(0.6为宜)3.4 烘炉图表各个区域砖样在计划温度下的膨胀率(％)分别见表: 燃烧室砖样在计划温度下的膨胀率表(％)(表一)计划温度(℃)砖号G021砖号G030砖号G034砖号G041累计膨胀间隔膨胀累计膨胀间隔膨胀累计膨胀间隔膨胀累计膨胀间隔膨胀20-500.050.050.040.040.030.030.040.0450-750.110.060.090.050.080.050.080.0475-1000.200.090.170.080.160.080.160.08100-1250.350.150.320.150.340.180.340.18125-1500.470.120.440.120.450.110.460.12150-1750.570.100.540.100.540.090.570.11175-2000.670.100.640.100.630.090.680.11200-2250.790.120.790.150.790.160.830.15225-2500.860.070.880.090.860.070.890.06250-2750.900.040.910.030.890.030.930.04275-3000.930.030.940.030.920.030.960.03300-3500.990.061.000.060.980.061.020.06350-4001.040.051.040.041.030.051.070.05400-4501.080.041.080.041.070.041.110.04450-5001.100.021.110.031.100.031.140.03500-5501.120.021.130.021.130.031.170.03550-6001.150.031.150.021.160.031.190.02600-6501.170.021.170.021.180.021.210.02650-7001.190.021.180.011.200.021.220.01700-7501.210.021.210.031.220.021.240.02750-8001.230.021.230.021.240.021.260.02800-8501.240.011.2301.2401.260850-9001.2401.240.011.250.011.260900-10001.250.011.2401.2501.260 斜道砖样在计划温度下的膨胀率表(％)(表二)计划温度℃砖号F008砖号F093砖号F173累计膨胀间隔膨胀累计膨胀间隔膨胀累计膨胀间隔膨胀20-500.040.040.040.040.040.0450-750.100.060.100.060.090.0575-1000.180.080.180.080.180.09100-1250.350.170.350.170.340.16125-1500.470.120.460.110.450.11150-1750.570.100.550.090.550.10175-2000.670.100.650.100.650.10200-2250.830.160.780.130.810.16225-2500.890.060.840.060.870.06250-2750.930.040.870.030.910.04275-3000.960.030.900.030.940.03300-3501.020.060.960.060.990.05350-4001.070.051.010.051.040.05400-4501.110.041.050.041.080.04450-5001.140.031.080.031.110.03500-5501.160.021.100.021.140.03550-6001.190.031.130.031.170.03600-6501.210.021.150.021.190.02650-7001.230.021.170.021.210.02700-7501.240.011.190.021.230.02750-8001.250.011.200.011.250.02800-9001.260.011.210.011.250900-10001.2601.220.011.260.01 蓄热室砖样在计划温度下的膨胀率表(％)(表三)计划温度℃砖号E008砖号E010砖号E013累计膨胀间隔膨胀累计膨胀间隔膨胀累计膨胀间隔膨胀25-500.030.030.040.040.030.0350-750.090.060.090.050.090.0675-950.1480.0580.170.080.160.0795-1100.220.0720.220.050.220.06110-1250.340.120.320.100.330.11125-1500.450.110.420.100.440.11150-1650.5080.0580.480.060.500.06165-1800.5560.0480.520.040.540.04180-2000.630.0740.640.120.640.10200-2150.700.070.720.080.730.09215-2250.770.070.810.090.800.07225-2500.850.080.880.070.890.09250-2650.8750.0250.8870.0070.900.01265-2750.880.0050.910.0230.930.03275-2850.900.020.920.010.940.01285-3000.910.010.940.020.960.02300-3250.950.040.96。