The utility model relates to a nested ring seam cleaning device and a gas cleaning system adopting the nested ring seam cleaning device. The cleaning device includes a guide shell, an inner cone and an outer cone with a gas inlet, the outer cone is a hollow cone and is sleeved outside the inner cone, the outer wall of the outer cone and the inner wall of the guide shell are surrounded to form an outer ring seam, and the inner cone and the inner wall of the outer cone are surrounded to form a shape The guide shell is provided with a spray mechanism for spraying cleaning liquid to the inner and outer ring seams. The utility model adopts the structure that the guide shell, the outer cone and the inner cone are successively assembled to form the inner and outer ring joint nesting. The number of ring joint cleaning equipment is small, the floor area is small, the equipment cost and maintenance cost are relatively low, the fluid pressure loss and equipment wear in the process of fluid diversion and confluence can be significantly reduced, the gas cleaning effect can be effectively improved, and the gas cleaning effect can be avoided The failure of a ring joint leads to the shutdown and maintenance of the whole blast furnace to ensure the smooth production.
【技术实现步骤摘要】
嵌套式环缝清洗装置及煤气清洗系统
本技术属于煤气净化
,具体涉及一种嵌套式环缝清洗装置及采用该嵌套式环缝清洗装置的煤气清洗系统。
技术介绍
高炉煤气是高炉冶炼的副产物,是冶金企业必不可少的二次能源,其生成时含有大量灰尘,需净化后才能回收使用。国内外的高炉煤气净化工艺主要分为干法和湿法两种,其中干法工艺的主流技术为干式布袋除尘技术,湿法工艺的主流技术为环缝洗涤塔技术。干式布袋除尘技术除尘效率高,出口含尘浓度<5mg/Nm3;煤气显热高;不需水处理;可回收干态粉尘,在国内占有一定的市场。但是,该技术具有一些特性限制了其应用:煤气温度要求在90℃~260℃;输灰系统故障率高;设备数量多,点检工作量大;净化后煤气酸性质含量高,冷凝液腐蚀性强,需另配除盐、除酸装置;过滤装置不具备对气流调压功能;废弃滤料不能被有效回收利用;高炉灰有自燃现象。湿法环缝洗涤塔技术除尘效率较高,出口含尘浓度<5mg/Nm3;对煤气温度没要求;设备数量少,操作简单,维护量少;净化后煤气酸性物质含量低;具备调压功能。其以适用高炉顶温多变工况、设备及操作简单的优点,已得到了认可与发展,是一种既能控制高炉炉顶压力,又能实现高炉煤气净化的装置及工艺系统。湿法环缝洗涤塔技术市面上主要分为两种,一种是由卢森堡保尔沃特(PaulWurth)公司提供的配备三个较小规格尺寸的环缝清洗单元装置的比肖夫技术,一种是由澳钢联提供的配备一个较大规格尺寸的环缝清洗单元装置的戴维塔技术,两种技术各有优缺点:比肖夫技术采用三套环缝清洗 ...
【技术保护点】
1.一种嵌套式环缝清洗装置,其特征在于:包括导流壳体、内锥体以及具有煤气入口的外锥体,所述外锥体为中空锥体且套设于所述内锥体外,所述外锥体外壁与所述导流壳体内壁围设形成外环缝,所述内锥体与所述外锥体内壁围设形成内环缝,所述导流壳体内设有用于向所述内环缝和所述外环缝喷淋清洗液的喷淋机构。/n
【技术特征摘要】
1.一种嵌套式环缝清洗装置,其特征在于:包括导流壳体、内锥体以及具有煤气入口的外锥体,所述外锥体为中空锥体且套设于所述内锥体外,所述外锥体外壁与所述导流壳体内壁围设形成外环缝,所述内锥体与所述外锥体内壁围设形成内环缝,所述导流壳体内设有用于向所述内环缝和所述外环缝喷淋清洗液的喷淋机构。
2.如权利要求1所述的嵌套式环缝清洗装置,其特征在于:沿煤气流通方向,所述外环缝及所述内环缝均呈变截面流道且流道截面积均逐渐减小。
3.如权利要求1或2所述的嵌套式环缝清洗装置,其特征在于:所述外环缝与所述内环缝的环缝开度之和可调。
4.如权利要求3所述的嵌套式环缝清洗装置,其特征在于:所述外锥体和所述内锥体分别连接有轴向驱动机构。
5.如权利要求4所述的嵌套式环缝清洗装置,其特征在于:两轴向驱动机构均包括与对应锥体连接且轴向平行的轴向驱动杆和用于驱动所述轴向驱动杆沿自身轴向运动的锥体驱动单元,两锥体驱动单元位于所述外锥体的同一侧,所述外锥体所连接的轴向驱动杆套设于所...
【专利技术属性】
技术研发人员:刘斌奇,
申请(专利权)人:中冶南方工程技术有限公司,
类型:新型
国别省市:湖北;42
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。