The utility model discloses a sprayed tundish covering agent adding device in the field of steel continuous casting in the field of steel continuous casting to solve the problem that the covering agent in the middle bag is difficult to be added smoothly and is difficult to operate at present. It consists of a silo, a feeding tube, a compressed air pipe, a mixing tube, a metal hose and a spray gun. The bottom of the silo is connected with a mixing pipe through a feeding tube. A compressed air pipe is connected in the reverse direction of the mixture flow, and the material flow is blown to the metal hose connected to the end of the mixing pipe through the compressed air and the other end of the metal hose is connected to the spray gun. At the end of the spray gun, the outlet of the spray gun is 90 degrees down to the nozzle of the spray gun, the nozzle of the spray gun is a 360 degree annular slot nozzle, and the outer cover of the nozzle has a circular outer cover, and the cover agent is free to fall under the barrier of the outer cover after the nozzle is sprayed out of the ring. The utility model can add the covering agent to the middle bag in time and accurately, and there is little disturbance to the molten steel during the process of joining, and the control level of the water inclusions in the middle steel is obviously improved, and it is easy to operate.
【技术实现步骤摘要】
喷吹式中间包覆盖剂加入装置
本技术涉及钢铁连铸
的一种喷吹式中间包覆盖剂加入装置。
技术介绍
连铸中间包覆盖剂可以起到提高钢水纯净度、减少钢水温降和防止钢水与空气接触产生二次氧化等作用。在浇铸过程中,操作人员根据覆盖剂对钢水的覆盖情况需要不定时地加入中间包覆盖剂,防止钢水裸露。目前,板坯连铸过程中间包覆盖剂多采用人工手动加入的方法,即将整袋的覆盖剂扔进中间包内。该方法费时、费力,操作人员靠近高温钢水,有安全隐患;同时,人工扔覆盖剂,在整袋覆盖剂落入中包内,会砸开中间包钢水上面的液态覆盖剂保护层,造成钢水与空气接触,被空气氧化而污染;此外,整袋的覆盖剂会对钢液面产生扰动,使渣面的非金属夹杂物进入钢液中,形成夹杂物缺陷,影响钢水纯净度。专利号为CN201320328864.7的中国专利《用于添加中间包覆盖剂的装置》,为网格状支架放置在中间包密封盖上且位于冲击孔区域内,工作人员利用夹持装置将中间包覆盖剂送至网格上后,利用钢液面高温辐射对中间包覆盖剂包装袋的烧损,使中间包覆盖剂落入冲击区。该装置的不足之处为:(1)网格状支架位于中包盖冲击孔区域会影响工人对中间包钢水的测温和取样;(2)每次连浇换钢包时会影响工人安装钢包长水口;(3)覆盖剂包装袋的烧损有个过程,会影响覆盖剂的及时加入。因此,有必要研制一种既能保证中间包覆盖剂及时平稳加入,又能使工人方便操作的中间包覆盖剂加入装置。
技术实现思路
本技术的目的在于克服现有技术缺陷,提供一种喷吹式中间包覆盖剂加入装置。本技术的技术方案是这样实现的:喷吹式中间包覆盖剂加入装置,由料仓、给料管、压缩空气管、混合管、金属软管、喷 ...
【技术保护点】
喷吹式中间包覆盖剂加入装置,其特征在于:它由料仓、给料管、压缩空气管、混合管、金属软管、喷枪组成,料仓底部通过给料管与混合管连接,混合管料流反方向上连接有压缩空气管,通过压缩空气将料流吹向与混合管末端相连的金属软管,金属软管另一端连接喷枪,通过喷枪将覆盖剂料流喷向中包。
【技术特征摘要】
1.喷吹式中间包覆盖剂加入装置,其特征在于:它由料仓、给料管、压缩空气管、混合管、金属软管、喷枪组成,料仓底部通过给料管与混合管连接,混合管料流反方向上连接有压缩空气管,通过压缩空气将料流吹向与混合管末端相连的金属软管,金属软管另一端连接喷枪,通过喷枪将覆盖剂料流喷向中包。2.根据权利要求1所述的喷吹式中间包覆盖剂加入装置,其特征在于:喷枪出口端呈90°向下弯曲连接喷枪喷头,喷枪喷头为360°环缝式喷头,喷头外罩有圆形外罩,覆盖剂从环缝喷出后在外罩的阻挡下自由下落,平稳覆盖在中间包...
【专利技术属性】
技术研发人员:彭著刚,杨成威,齐江华,张剑君,孙伟,朱万军,陈俊孚,
申请(专利权)人:武汉钢铁有限公司,
类型:新型
国别省市:湖北,42
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