Address: No. 1059, Pailou Village, Pailou Town, Haicheng City
Tel: Mr. Hu 15841201000
The company supplies light burnt magnesia ball, model 60. The parameters are: model / specification * 60, product grade * other, category * other. Quality assurance, welcome consultation and negotiation.
Light burnt magnesia ball under new technology
Light burnt magnesia ball is made of ordinary light burnt magnesia powder, which is mixed and pressed. Light burnt magnesia ball is mainly used for converter steelmaking and slag splashing protection, which can improve the converter life. The preparation of lightly burned magnesia ball is to add 80% lightly burned magnesia powder to 20% water, then put it into a mixer for rolling, stirring, mixing for 15 to 20 minutes to form a mixture. The product is prepared by a belt conveyor and sent to a ball-pressing machine, and then stacked. The finished product of light burnt magnesia ball is dried in shade for 48 hours and forms strength for sale.
Light burnt magnesia ball is used as slag protection component regulator for slag splashing protection of converter. Because slag splashing protection requires proper viscosity and refractoriness of slag, reasonable slag composition is the key to implement slag splashing protection. Generally, slag can not be splashed directly. It needs to be adjusted by adding a certain amount of magnesia sphere. At the same time, it can replace dolomite to reduce slag volume and increase MgO content in slag.
Magnesium oxide is a high melting point mineral with a melting point of 2800 and the content of magnesium oxide in the slag increases, which makes the slag more viscous and fireproof. It is easier for the slag to be combined with the lining to form an effective slag protective layer on the lining, so as to improve the lining life and reduce consumption.
However, the quality of light-burnt magnesia balls on the market is uneven. From the choice of raw materials for light-burnt magnesia balls, to the production and processing of products, to transportation and sales, the pace of progress of each company is inconsistent, leading to customers and enterprises can not maximize the benefits. Some products produced by the old production line of light burnt magnesia ball without modification have low pelletizing rate. After the raw materials are processed by ball pressing machine, half are products and half are powder particles, which need to be manually returned to ball pressing machine to continue processing; the sphere is loose. Low density, low strength, easy to break. Especially when loading, unloading, transportation, extrusion and falling, the sphere is prone to break up and the shape of the sphere is incomplete. Some are hemispheres, some are one-third of the ball, some are missing angles, different shapes, dull surface, poor appearance image; users are not satisfied. In the products sold, there are 20% - 35% small particles and powder mixtures, which users have repeatedly raised objections to; the most important thing is to increase the cost of customers and serious damage to the life of converter lining. Due to the loose, low density and low strength of lightly burned magnesium spheres, the spheres are liable to break up during loading, unloading, transportation, extrusion and drop. Therefore, when the light burnt magnesia ball is fed into the steelmaking furnace and has not yet contacted with molten steel, part of the broken particles and powder particles are sucked out by the strong negative pressure of the exhaust system on the top of the converter, collected by the electrostatic precipitator in the chimney and treated separately as waste, which results in the following three results: increasing the damage degree of the lining of the converter, increasing the damage degree of the exhaust system equipment, and increasing the damage degree of the exhaust system equipment. Consumption of lightly burned magnesia spheres per ton of steel.
Light burnt magnesia ball