The utility model relates to a small flow plug-proof long rod nozzle for continuous casting. Including a nozzle seat, the nozzle seat is provided with a front-end opening and a back-end closed water-jet passage, the front end of the water-jet passage is provided with a stepped hole, the front part of the water-jet passage is connected with a spray pipe, the front part of the stepped hole is connected with a spray pipe, the annular space formed between the air-jet pipe and the water-jet pipe is a jet passage, the back side wall of the nozzle seat is provided with a water inlet connected with the water-jet passage, and the side of the stepped hole. The wall is equipped with an air inlet connected with the jet passage, and the front end of the spray pipe is equipped with a Y-type water divider. The front end of the spray pipe is equipped with a nozzle, and the Y-type water divider includes a water divider body. The center of the water divider body is equipped with a water inlet hole. The water divider body is evenly surrounded by a number of inclined downward water dividers. Several water dividers are symmetrically arranged relative to the water inlet hole, and the upper end of the water div Connect with the intake hole. The utility model has the advantages of simple structure, convenient manufacture, non-blocking and uniform spraying of cooling water of the nozzle.
【技术实现步骤摘要】
一种连铸用小流量防堵型长杆喷嘴
本技术涉及一种连铸用小流量防堵型长杆喷嘴。
技术介绍
连铸工艺过程实际上是由高温钢水向固态转变的凝固传热过程,因此铸坯的凝固传热过程对于铸坯的表面裂纹、内部裂纹、鼓肚等质量起着至关重要的影响。在铸坯的凝固传热过程中大多采用水作为冷却介质,这也就说从某种意义上讲,连铸技术就是水冷技术,即通过冷却水将高温钢水凝固为铸坯的一个凝固传热过程。水冷系统是由许多喷嘴按规律布置在铸坯的周围,当部分喷嘴发生堵塞时,所在对应位置的铸坯由于得不到冷却温度急剧回升,温升可高达数百摄氏度,造成冷却不均形成热应力,最终造成铸坯产生裂纹。现有的连铸用喷嘴结构简单,容易发生堵塞现象,气水混合不充分,导致喷雾也不均匀。
技术实现思路
针对上述缺陷,本技术的目的在于提供一种结构简单,制造方便,能够使气水二次充分混合并进行二次雾化,喷雾均匀冷却效果更佳的一种连铸用小流量防堵型长杆喷嘴。为此本技术所采用的技术方案是:包括喷嘴座,所述喷嘴座内设有一前端开口后端封闭的喷水通道,所述喷水通道的前端设有阶梯孔,阶梯孔的孔径尺寸大于喷水通道的孔径尺寸,喷水通道的前部连接有喷水管,阶梯孔的 ...
【技术保护点】
1.一种连铸用小流量防堵型长杆喷嘴,其特征在于,包括喷嘴座,所述喷嘴座内设有一前端开口后端封闭的喷水通道,所述喷水通道的前端设有阶梯孔,阶梯孔的孔径尺寸大于喷水通道的孔径尺寸,喷水通道的前部连接有喷水管,阶梯孔的前部连接有喷气管,所述喷水管位于喷气管内部且两者轴线重合,喷气管与喷水管之间形成的环形空间为喷气通道,喷嘴座后部侧壁上设有与喷水通道连通的进水口,阶梯孔的侧壁上设有与喷气通道连通的进气口,喷水管的前端安装有Y型分水器,所述喷气管的前端安装有喷嘴,所述Y型分水器包括分水器本体,所述分水器本体内中心处设有进水孔,分水器本体四周均匀分布有倾斜向下的若干分水孔,若干分水孔相 ...
【技术特征摘要】
1.一种连铸用小流量防堵型长杆喷嘴,其特征在于,包括喷嘴座,所述喷嘴座内设有一前端开口后端封闭的喷水通道,所述喷水通道的前端设有阶梯孔,阶梯孔的孔径尺寸大于喷水通道的孔径尺寸,喷水通道的前部连接有喷水管,阶梯孔的前部连接有喷气管,所述喷水管位于喷气管内部且两者轴线重合,喷气管与喷水管之间形成的环形空间为喷气通道,喷嘴座后部侧壁上设有与喷水通道连通的进水口,阶梯孔的侧壁上设有与喷气通道连通的进气口,喷水管的前端安装有Y型分水器,所述喷气管的前端安装有喷嘴,所述Y型分水器包括分水器本体,所述分水器本体内中心处设有进水孔,分水器本体四周均匀分布有倾斜向下的若干分水孔,若干分水孔相对于进水孔对称布置,分水孔上端与进水孔相连通。2.根据权利要求1所述的一种连铸用小流量防堵型长杆喷嘴,其特征在于,所述进水口内设有进水候口,所述进气口内设有进气候口。3.根据权利要求1所...
【专利技术属性】
技术研发人员:冯业文,刘青,张斌,刘雁,焦锋,孔飞,孙苏洋,周永军,
申请(专利权)人:江苏博际喷雾系统股份有限公司,
类型:新型
国别省市:江苏,32
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