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营口波海菱镁材料有限公司          

联系人:庄 延 山(先生)

地 址:大石桥市南楼经济开发区高庄村

电 话:0417-5289488  13904074678

邮 箱:dsqbohai@126.com

邮 编:115100

 

Yingkou Bohai Magnesium Materials Co., Ltd.

Contact: Zhuang Yanshan (Mr.)

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

Phone call: +86 0417-5289488  +86 13904074678

Mailbox: dsqbohai@126.com 

Zip code: 115100

轻烧镁粉是什么? What is Light Burnt Magnesium Powder?

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轻烧镁粉是什么? What is Light Burnt Magnesium Powder?

发布日期:2016-02-29 00:00 来源:http://www.ykbhlm.com 点击:

    本厂自筹建以来,依靠大石桥市丰富的菱镁资源,以及交通便捷畅达优势,致力于菱镁矿的深加工和产业化。我厂主要生产轻烧镁粉轻烧镁球重烧镁砂、苦土粉、电熔镁、冶金砂等耐火材料产品,产品主要用于冶金、化工、饲料、环保、医药、肥料、建材等行业。同时兼营各种粉体雷蒙加工,并且可根据客户的需求调整各种理化指标。

    我厂的生产能力强大,技术力量雄厚,检测手段完善,工人操作技术熟练,产品均已通过ISO9000国际质量体系认证。目前,产品已远销欧美、南北美洲及东南亚等20多个国家和地区,并深受广大客户好评。

    我厂本着“以德经商、信誉至上”的企业宗旨,愿与国内外用户更好的合作,以优质的产品,Z优的价格来满足广大客户的需要,并热忱欢迎来我公司洽谈、合作。

    轻烧镁粉,简称轻烧镁粉,是一种由菱镁矿、水镁石和由海水或卤水中提取的氢氧化镁经800~1000℃左右煅烧所获得活性氧化镁。轻烧镁粉为呈淡黄色、淡褐色的粉末,粒度大都在100目以下,方镁石结晶很小,密度3.07~3.22g/cm3,晶格常数大,晶格缺陷多,质地松脆,呈多孔结构,反应活性很大,易进行固相反应或烧结,与水作用生成Mg(OH)2而硬化,有粘结能力。

    选择煅烧方式及控制轻烧温度是获得良好活性的重要手段。随着煅烧温度的提高,MgO的比表面积显著下降。当温度大于1000℃时,MgO重结晶速度加快,分散度急剧下降,活性变差。在相同的温度下采用不同的煅烧方式和煅烧设备也是影响MgO活性的重要因素。如采用沸腾炉、悬浮炉煅烧,使其在瞬间迅速分解,可获得具有Z大活性的轻烧氧化镁粉。采用隧道窑、反射窑大块的方式,煅烧时间长,往往会使表面过烧而内部生烧,都将使轻烧氧化镁粉的活性降低。采用回转窑煅烧粒状菱镁石,情况介于两者之间,也能使获得轻烧氧化镁粉保持较好的活性。

    轻烧镁粉是一种具有中等碱度和化学活性的原料,除作为耐火材料和胶凝材料外,还应用于其他工业领域。另外,转炉溅渣护炉技术的发展,进一步扩展了轻烧氧化镁粉的应用范围。目前,溅渣护炉技术多将轻烧氧化镁粉成球后使用,有轻烧氧化镁粉球、含碳轻烧氧化镁分球和含碳含钙轻烧镁球等。


Since the establishment of the factory, relying on the rich magnesite resources in Dashiqiao City and the advantages of convenient transportation, it is committed to the deep processing and industrialization of magnesite. Our factory mainly produces refractory products such as light-burned magnesium powder, light-burned magnesium balls, re-burned magnesia, bitter clay powder, fused magnesium, metallurgical sand, etc. The products are mainly used in metallurgy, chemical industry, feed, environmental protection, medicine, fertilizer, Building materials and other industries. At the same time concurrently operating various powder Raymond processing, and can adjust various physical and chemical indicators according to customer needs.

    Our factory has strong production capacity, strong technical force, perfect testing methods, skilled workers in operating techniques, and our products have passed ISO9000 international quality system certification. At present, the products have been exported to more than 20 countries and regions in Europe, America, North and South America and Southeast Asia, and have been well received by customers.

    Based on the corporate tenet of "doing business with virtue and reputation first", our factory is willing to cooperate better with customers at home and abroad to meet the needs of our customers with high-quality products and the best prices. Cooperation.

    Light-burned magnesium powder, referred to as light-burned magnesium powder, is a kind of active magnesium oxide obtained by calcining magnesite, brucite and magnesium hydroxide extracted from seawater or brine to about 800 ~ 1000 ° C. Light-burned magnesium powder is a light yellow and light brown powder with a particle size of less than 100 mesh. The periclase crystals are very small with a density of 3.07 ~ 3.22g / cm3, a large lattice constant, many lattice defects, and a crisp texture. It has a porous structure and is highly reactive. It is easy to undergo solid phase reaction or sintering. It reacts with water to form Mg (OH) 2 and hardens. It has binding ability.

    Selecting the calcination method and controlling the light firing temperature are important means to obtain good activity. With the increase of calcination temperature, the specific surface area of MgO decreased significantly. When the temperature is higher than 1000 ° C, the recrystallization speed of MgO increases, the degree of dispersion decreases sharply, and the activity deteriorates. Using different calcination methods and calcining equipment at the same temperature is also an important factor affecting MgO activity. If it is calcined by a boiling furnace or a suspension furnace, it can be quickly and rapidly decomposed to obtain light-burned magnesia powder with maximum activity. By adopting the block method of tunnel kiln and reflection kiln, the calcination time is long, and the surface is often over-burned and the internal burn-in is caused, which will reduce the activity of light-burned magnesium oxide powder. Rotary kiln is used for calcining granular magnesite, the situation lies between the two, and it can also keep the activity of obtaining lightly burned magnesia powder.

    Light-burned magnesium powder is a raw material with medium alkalinity and chemical activity. In addition to being used as refractories and gelling materials, it is also used in other industrial fields. In addition, the development of converter slag splashing furnace protection technology has further expanded the scope of application of light-burned magnesia powder. At present, the slag splashing furnace protection technology mostly uses light-burned magnesia powder into balls, including light-burned magnesia powder balls, carbon-containing light-burned magnesia balls, and carbon-containing calcium-containing light-burned magnesium balls.


轻烧镁粉


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