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      联系人:庄 延 山(先生)

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      Yingkou Bohai Magnesium Materials Co., Ltd.

      Contact: Zhuang Yanshan (Mr.)

      locations: Gaozhuang Village, Nanlou Economic Development Zone, Dashiqiao City

      phones call: +86 0417-5289488  +86 13904074678

      Mailbox: dsqbohai@126.com 

      Zip code: 115100

      轻烧镁球如何在溅渣中护炉 How lightly burned magnesium balls protect the furnace in slag splashing

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      轻烧镁球如何在溅渣中护炉 How lightly burned magnesium balls protect the furnace in slag splashing

      发布日期:2016-04-13 00:00 来源:http://www.jialanrihua.com 点击:

          炉龄是转炉炼钢一项综合性技术指标。提高炉龄不仅可以降低耐火材料消耗,而且有利于均衡组织生产,促进生产的良性循环。所以,大幅度提高转炉炉龄是钢铁企业始终追求的目标。转炉炉衬工作在高温、高氧化性条件下,通常以0.2—0.8mm/炉的速度被侵蚀。溅渣护炉是近年来开发一项提高炉龄的新技术。该技术是利用MgO含量达到饱和或过饱和的炼钢终点渣,通过高压氮气的吹溅,冷却凝固在炉衬表面上,形成一层高熔点的熔渣层,并与炉衬很好地粘结附着。溅渣形成的溅渣层耐腐蚀性较好,可抑制炉衬砖表面的氧化脱碳,又能减轻高温渣对炉衬砖的侵蚀冲刷,从而保护炉衬砖,降低耐火材料损耗速度,减少喷补料消耗,同时提高炉衬使用寿命,提高转炉作业率,降低生产成本。 


      Furnace age is a comprehensive technical indicator for converter steelmaking. Increasing the furnace age can not only reduce the consumption of refractory materials, but also help to balance the production of the organization and promote a virtuous cycle of production. Therefore, it is the goal that iron and steel enterprises have always pursued to greatly increase the converter age. The converter lining works under high temperature and high oxidizing conditions, and is usually eroded at a speed of 0.2-0.8mm / furnace. Slag splashing furnace protection is a new technology developed in recent years to increase furnace age. This technology uses the steelmaking end-point slag whose MgO content reaches saturation or supersaturation, and is cooled and solidified on the surface of the furnace lining by high-pressure nitrogen blowing to form a high melting point slag layer, which is well adhered to the furnace lining. . The slag-spattering layer formed by slag splashing has good corrosion resistance, which can inhibit the oxidation and decarburization of the surface of the furnace lining bricks, and can reduce the erosion and erosion of the furnace lining bricks by the high-temperature slag, thereby protecting the furnace lining bricks, reducing the refractory material loss rate, and reducing spraying and filling Consumption, at the same time increase the life of the furnace lining, improve the converter operating rate, and reduce production costs.

      轻烧镁球

          轻烧镁球系选用高活性氧化镁为主要原料,加入适量的添加剂,经混和、压球机或成球盘制球、干燥而成。 

          轻烧镁球主要用于转炉炼钢造渣。该产品加入转炉综渣中、和炉渣迅速反应,能够有效地调节综渣成份,使炉渣中的主要矿物相变为高熔点的MgO、C3S和C2S相,提高炉渣的粘度和熔点,从而显著地提高了溅渣护炉效果。因此,轻烧镁球是转炉溅渣护炉的护渣成分调节剂。 

          随着冶金工业的快速发展,平炉炼钢以被淘汰,大步向大型转炉过渡。而转炉溅渣护炉工艺是在转炉出钢后,采用氧枪吹氮气,将炉内含有一定量MgO的剩余炉渣均匀吹溅到炉壁上去,在炉壁上均匀地喷溅一层渣,从而达到保护炉衬的作用。 

      Light-burned magnesium balls are made of highly active magnesium oxide as the main raw material, added with an appropriate amount of additives, and mixed, ball-pressed or ball-shaped discs and dried.

      Light-burned magnesium balls are mainly used for converter steelmaking and slagging. The product is added to the converter slag and reacts quickly with the slag. It can effectively adjust the composition of the slag and change the main mineral phase in the slag into high-melting MgO, C3S and C2S phases. Improved slag splashing furnace protection effect. Therefore, light-burned magnesium balls are slagging component regulators for converter slag splashing furnaces.

      With the rapid development of the metallurgical industry, open-hearth steelmaking has been eliminated, and large-scale transitions have been made to large converters. The converter slag splashing furnace protection technology uses an oxygen lance to blow nitrogen after the steel is discharged from the converter. So as to protect the furnace lining.




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