CN211771071U - 一种焦炉封闭高效集气结构 - Google Patents
一种焦炉封闭高效集气结构 Download PDFInfo
- Publication number
- CN211771071U CN211771071U CN201922473369.5U CN201922473369U CN211771071U CN 211771071 U CN211771071 U CN 211771071U CN 201922473369 U CN201922473369 U CN 201922473369U CN 211771071 U CN211771071 U CN 211771071U
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- coke oven
- gas collecting
- coke
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- gas
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- 239000000571 coke Substances 0.000 title claims abstract description 129
- 239000000428 dust Substances 0.000 claims abstract description 18
- 239000000779 smoke Substances 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003245 coal Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000000630 rising Effects 0.000 claims description 6
- 230000000875 corresponding Effects 0.000 claims description 3
- 239000011295 pitch Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 6
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Abstract
一种焦炉封闭高效集气结构，包括：焦炉封闭罩，罩设于焦炉炉顶上方，两侧立面部分设若干组可调节挡板；焦炉封闭罩的顶部划分为多个区域；焦炉封闭罩顶部中央设固定集气管，固定集气管一端连接一集气风机及布袋除尘器；烟气捕集炉顶分烟道，呈锥形，设于焦炉封闭罩内；多根集气管，安装在每个区域顶部，每个区域内机、焦侧均分布一个集气罩；集气罩布置在煤塔两侧，吸口呈喇叭口形状，其上端渐次缩小并与集气总管连接，集气总管与固定集气管连接；多个集气管与集气罩间配置可调节开度的调节翻板；若干环境状态监测装置，设置于焦炉封闭罩内；控制器，集气风机、所述环境状态监测装置分别连接该控制器。
Description
技术领域
本实用新型涉及焦炉技术领域，特别涉及一种焦炉封闭高效集气结构。
背景技术
焦炉生产区域由焦炉本体、机侧推焦车、焦侧拦焦车(导焦车)、焦罐车、出焦集尘接口阀等组成，这些设备和装置均露天布置、操作和运行。为有效收集、处置炼焦生产过程中产生的大量烟尘，配置了焦炉装煤、出焦、机侧除尘系统。随着焦炉生产年限的延长，在焦炉炉头、小炉门、装煤孔等处产生连续或非连续的少量烟尘外逸，这些烟尘虽然单点量很少，但逸散点很多，无法将其统一有效收集。另外，上述几大除尘系统工作的前期、末期，捕集率均不能达到100％，仍有少量烟尘逃逸到大气中。
焦炉炉体散热占总供热量的15％以上，机焦侧炉门、钢柱、炉顶面、上升管等炉体附件常规温度很高，个别点一直高达300℃以上，敞开炉门推焦作业期间，温度更是高达1000℃以上，整体封闭后封闭空间温度高，热烟气必须有效收集，并有序通风，确保封闭空间内人员安全及设备稳定运行。
目前仅芜湖新兴铸管有限公司有一个焦炉局部加顶棚的应用案例。其采用焦炉顶部加罩方式，覆盖焦炉炉顶，并各自往机焦侧延伸了一小段屋檐，覆盖焦炉炉前容易冒烟的部位。机焦侧因推焦车、拦焦车(导焦车)移机作业立面全敞开，稍有风便造成烟尘逸散，仅实现了焦炉形式上的加罩封闭，未达到密闭要求，难以有效解决焦炉生产运行中无组织排放、可视污染等问题。焦炉炉顶区域加顶棚后，热量无法及时排出，炉顶区域温度升高，现场作业环境非常差，员工抱怨，后增加了射雾器降温措施，效果不佳，且加剧了设备腐蚀。
发明内容
本实用新型的目的在于设计一种焦炉封闭高效集气结构，既能实现热压自然通风，又能实现风压自然通风，高效捕集烟气，导入新鲜空气，有助于降低封闭焦炉大棚内抽吸及送风系统配置，降低系统运行成本。
为达到上述目的，本实用新型的技术方案是：
一种焦炉封闭高效集气结构，其包括：焦炉封闭罩，罩设于所述焦炉炉顶上方，其上部为锥形结构，焦炉封闭罩对应焦炉机焦两侧的立面部分设置若干组可调节挡板；所述焦炉封闭罩内的顶部划分为多个区域，每个区域为网状钢结构构成；焦炉封闭罩顶部中央设固定集气管，固定集气管一端连接一集气风机及布袋除尘器；焦炉封闭罩上部一侧设供焦炉上升管穿设的上升管放散气排口；烟气捕集炉顶分烟道，呈锥形，设置于所述焦炉封闭罩内，并对应于所述焦炉炉顶上方；若干集气管，安装在每个区域的钢结构顶部，随焦炉封闭罩从煤塔向两侧焦炉延伸，每个区域内机、焦侧均分布一个集气罩；集气罩布置在煤塔两侧，其吸口呈喇叭口形状，其上端渐次缩小并与一集气总管连接，所述集气总管延伸于各个区域，并连接至所述固定集气管；所述集气管与集气罩之间配置可调节开度的调节翻板；若干环境状态监测装置，包括温度计、湿度计、CO浓度计、VOCs浓度计或多管结构内负压监测计，分别设置于所述焦炉封闭罩内；控制器，所述集气风机、所述环境状态监测装置分别连接该控制器。
优选的，所述集气风机和布袋除尘器布置在煤塔顶部。
优选的，所述区域以每10炉距为一个区域。
优选的，所述可调节挡板包括调节挡板及其上转轴，联接转轴的伺服电机，该伺服电机连接所述控制器。
本实用新型所述焦炉封闭罩划分为多个区域，每个区域由圆筒状钢结构构成，组成空心网状结构，确保顶棚的钢结构强度，向上连接多通道集气管，利用热压原理实现各区域热烟气的汇集。
多个集气管与集气罩间配置调节翻板，可根据检测的集气管负压自动或手动调节开度，确保集气风量合理分配。
配置集气风机和布袋除尘器，利用风机运转产生的负压，经布袋除尘器内除尘仓室过滤，抽吸焦炉大棚内的热烟气，这样，大棚内的烟气经过布袋除尘器，可以过滤掉灰尘等杂物，排放洁净空气。风机变频调速，根据焦炉大棚内环境变化风量自动调节。
侧墙可调节挡板：焦炉机焦两侧立面部分设置多组可调节挡板，将焦炉生产区域划分为机侧、炉顶、焦侧三个部分，调节挡板宽度以1～5炉间距为一组，全炉由多组可调节挡板构成，可调节挡板转轴上安装旋转驱动调节伺服电机，远程控制，根据需要开启全部或部分，微开或全开。侧墙可调节挡板利用风压原理调节。
监控终端：焦炉封闭结构内配置监控系统，全方位监控焦炉封闭空间内环境状态、推焦作业状态、炉热状态。
作为一种改进，推进作业状态监测可包括推焦作业执行过程、上升管运行控制、炭化室结焦进程监控。
作为一种改进，炉热状态监控包括炉顶面、上升管、机焦侧、地下室等区域炉体散热状态的在线监测。
本实用新型所述封闭大棚顶部设置多管结构，实现热压自然通风；封闭大棚迎风面增加挡板，背风面多镂空，实现风压自然通风；封闭大棚顶部配置集气罩，与地面风机相连，实现焦炉封闭大棚内气体的收集处理。
本实用新型的有益效果：
本实用新型利用风压和热压原理，与机械通风结合，实现封闭大棚内通风及烟气的收集、置换，通过本实用新型技术的应用，既能实现热压自然通风，又能实现风压自然通风，高效捕集烟气，导入新鲜空气，有助于降低封闭焦炉大棚内抽吸及送风系统配置，降低系统运行成本。
本实用新型为焦炉封闭系统的局部结构，用于焦炉封闭大棚内烟气的有效收集及棚内空气的有序流动，与机械通风相结合，既可高效收集烟气，又能改善棚内作业环境条件，降低安全风险，为人员及设备提供更佳的作业环境。
本实用新型焦炉封闭高效集气结构，利用热压、风压自然通风原理，实现焦炉大棚内高温烟气的快速有效收集，焦炉封闭空间内气体的物理置换，可高效收集焦炉大棚内的烟气，也可促进棚内气体置换。
本实用新型利用结构和物理原理时间烟气收集及气体置换，投入少，寿命长、能耗低。
附图说明
图1为本实用新型实施例的结构示意图。
图中，10、焦炉本体，101、102焦炉机侧平台，20、焦炉上升管，30、推焦车；
1、焦炉封闭罩，2、2’、可调节挡板，3、固定集气管，4、集气风机，5、烟气捕集炉顶分烟道，6、6’、集气管，7、7’、集气罩，8、集气总管，9、9’、调节翻板；10、10’、环境状态监测装置。
具体实施方式
参见图1，本实用新型所述的焦炉封闭高效集气结构，其包括：
焦炉封闭罩1，罩设于所述焦炉10炉顶上方，其上部为锥形结构，焦炉封闭罩1对应焦炉机焦两侧的立面部分设置若干组可调节挡板2、2’；所述焦炉封闭罩1内的顶部划分为多个区域，每个区域由圆筒状钢结构构成，组成空心网状结构；焦炉封闭罩1顶部中央设固定集气管3，固定集气管3一端连接一集气风机4及布袋除尘器；焦炉封闭罩1上部一侧设供焦炉上升管20穿设的上升管放散气排口101；
烟气捕集炉顶分烟道5，呈锥形，设置于所述焦炉封闭罩1内，并对应于所述焦炉10炉顶上方；
若干集气管6、6’，安装在每个区域的钢结构顶部，随焦炉封闭罩从煤塔向两侧焦炉延伸，每个区域内机、焦侧均分布一个集气罩7、7’；集气罩7、7’布置在煤塔两侧，其吸口呈喇叭口形状，其上端渐次缩小并与一集气总管8连接，所述集气总管8延伸于各个区域，并连接至所述固定集气管3；所述集气管6、6’与集气罩7、7’之间配置可调节开度的调节翻板9、9’；
若干环境状态监测装置10、10’，包括温度计、湿度计、CO浓度计、VOCs浓度计或多管结构内负压监测计，分别设置于所述焦炉封闭罩内；
控制器(图中未示)，所述集气风机、所述环境状态监测装置10、10’分别连接该控制器。
优选的，所述集气风机和布袋除尘器布置在煤塔顶部。
优选的，所述区域以每10炉距为一个区域。
优选的，所述可调节挡板包括调节挡板及其上转轴，联接转轴的伺服电机，该伺服电机连接所述控制器。
焦炉炉体加罩封闭是国务院打赢蓝天保卫战的重点推进项目，实施焦炉大棚整体封闭是大势所趋，焦炉炉顶加罩封闭方案相对成熟，机焦侧区域因推焦车、拦焦车(导焦车)走行作业频繁，完全封堵的难度很大，本实用新型焦炉封闭高效集气结构，实现烟气快速收集，棚内自然通风，运行费用非常低，必将成为焦炉大棚的关键装置，因此，本实用新型推广应用前景十分广阔。
Claims (4)
1.一种焦炉封闭高效集气结构，其特征在于，包括：
焦炉封闭罩，罩设于所述焦炉炉顶上方，其上部为锥形结构，焦炉封闭罩对应焦炉机焦两侧的立面部分设置若干组可调节挡板；所述焦炉封闭罩内的顶部划分为多个区域，每个区域为网状钢结构构成；焦炉封闭罩顶部中央设固定集气管，固定集气管一端连接一集气风机及布袋除尘器；焦炉封闭罩上部一侧设供焦炉上升管穿设的上升管放散气排口；
烟气捕集炉顶分烟道，呈锥形，设置于所述焦炉封闭罩内，并对应于所述焦炉炉顶上方；
若干集气管，安装在每个区域的钢结构顶部，随焦炉封闭罩从煤塔向两侧焦炉延伸，每个区域内机、焦侧均分布一个集气罩；集气罩布置在煤塔两侧，其吸口呈喇叭口形状，其上端渐次缩小并与一集气总管连接，所述集气总管延伸于各个区域，并连接至所述固定集气管；所述集气管与集气罩之间配置可调节开度的调节翻板；
若干环境状态监测装置，包括温度计、湿度计、CO浓度计、VOCs浓度计或负压监测计，分别设置于所述焦炉封闭罩内；
控制器，所述集气风机、所述环境状态监测装置分别连接该控制器。
2.如权利要求1所述的焦炉封闭高效集气结构，其特征在于，所述集气风机和布袋除尘器布置在煤塔顶部。
3.如权利要求1所述的焦炉封闭高效集气结构，其特征在于，所述区域以每10炉距为一个区域。
4.如权利要求1所述的焦炉封闭高效集气结构，其特征在于，所述可调节挡板包括调节挡板及其上转轴，联接转轴的伺服电机，该伺服电机连接所述控制器。
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