Light-burned magnesium powder is a flexural, pressure-resistant, and gel material. It is widely used in rubber, plastics, wires, cable dyes, paints, glass, ceramics, chemical reagents, medicine, food additives, etc.; with the continuous progress of science and With the development, the application of magnesium oxide in industry has become wider.
Light burnt magnesia powder (Mgo), also known as light burnt powder in Chinese, magnesia carbon brick for converter, magnesium oxide powder, magnesite, magnesia powder; English alias Magnesium oxide, Magnesia usta, Calcined magnesia, Magcal, Maglit. Magnesium powder, white fine powder, odorless, insoluble in water or ethanol, slightly soluble in ethylene glycol, melting point 2852℃, boiling point 3600℃, light burnt magnesia powder has high flame resistance performance. It can be converted into crystals after being burned at a high temperature above 1000℃, and it will become burnt magnesia (also known as magnesia) or sintered magnesia when it rises above 1500℃. Light burned magnesia powder is an alkaline oxide, which has the generality of alkaline oxide and belongs to a cementing material. When exposed to the air, it easily absorbs water and carbon dioxide and gradually becomes basic magnesium carbonate, which combines with water to form magnesium hydroxide, which is slightly alkaline reaction, and the pH of a saturated aqueous solution is 10.3. It is soluble in acid and ammonium salt, hardly soluble in water, and its solution is alkaline. Insoluble in ethanol.
Physical and chemical indexes of light burned magnesia powder:
Light burnt magnesia powder, good color, 85 magnesium content, processing meshes ranging from 120 mesh to 325 mesh. The light-burned magnesia powder produced is the domestic industry standard. On the basis of smooth, clean and beautiful, it has the advantages of pressure resistance, corrosion resistance, fire protection and flame retardancy. It is the key to replace the green product of thermal insulation building in my country. Ideal raw material.
A technique for repairing furnace brick lining. The repaired parts develop from the initial furnace body and middle part to the lower part of the furnace body and the furnace belly. In the late 1980s, Germany developed the bottom wall repair technology. The middle and upper brick linings of the blast furnace are eroded and worn by the charge and gas. The middle and late brick linings of the first generation of furnaces appear to fall off and uneven, which affects the reasonable distribution of blanking and gas, and the operation indicators of the blast furnace deteriorate, and the life of the blast furnace is also endangered. Using blast furnace gunning technology to thicken the original damaged surface of the furnace wall to 200-400mm and restore it to a flat operating furnace type is not conducive to the smooth running of the furnace and the improvement of the blast furnace operating indicators, and it can also extend the furnace life. In the later period of the campaign, gunning shall be carried out at intervals as needed until the blast furnace is overhauled (see blast furnace overhaul and medium repair).
At present, the light-burned magnesia balls produced after technological improvement have reached the high-end level in the industry. Compared with those produced by companies that have not undergone technological improvement, after 4 years of operation and production, practice shows that: no improvement after release Improved the mechanization and automation equipment level of the light burnt magnesia ball production line, improved the production environment, reduced labor intensity, and increased labor productivity. At the same time, the existing problems before the transformation have been significantly improved, and the surface quality of the product has been significantly improved. The ball formation rate of magnesium balls has increased from 50% before the transformation to 85%~90% after the transformation; the density of magnesium spheres has also been improved; the drum index of the structural strength of the magnesium balls has increased from 30%~45% before the transformation to 64%~68% after the transformation, has exceeded the standard drum index by 58%. When loading and unloading, transportation, squeezing and falling, the sphere did not break obviously. At the same time, users also raised objections to the surface quality of light burned magnesia.
It can be seen that light burnt magnesia ball products do not need to have strict internal quality, but also need to pay attention to the appearance quality of the product, and more importantly, the strength requirements of the product. Only product strength can have perfect appearance quality.
Yingkou Dingfeng Metallurgical Technology Co., Ltd.
Contact: Mr. Zhang
Mail box: email@example.com
Address: Liangjunzhai Village, Yong'an Town, Dashiqiao City, Yingkou City, Liaoning Province