Performance of ladle refractory castables and ramming materials

The ladle is one of the important thermal equipment in steelworking. Modern industry, in order to save energy, most companies choose unshaped refractory materials and not burning brick as a ladle refractory lining. Ladders are mainly used in the early selection of siliceous and high-alumina amorphous refractory as its lining. In recent years, more choice of ramming lining and refractory castable and vibrating lining. Its primary raw materials are zircon stone, semi-zirconium, waxy stone, aluminum chrome and so on.
1, refractory ramming material
Ladle with refractory ramming raw materials are: wax stone, zircon stone, semi-zircon stone, high aluminum and aluminum chrome, aluminum and magnesium and so on. With a refractory ramming material ramming Sheng Gang bucket wall, the lining thickness and brick masonry when the same. According to the damage of the barrel lining, the various parts of the fire resistance ramming material is not the same.
Russia, a factory 80 ~ 360t ladle, throughout the selection of refractory ramming material mortar lining. Lining time is generally 30 ~ 60min, the use of several minor repairs, life expectancy of up to 100 times, per ton of steel refractory consumption of 3.0 ~ 3.5kg.
China's 200t ladle, the choice of aluminum-magnesium refractory ramming material mortar lining, 55 barrels of uniform service life of 85 times, up to 100 times per ton of steel refractory consumption of 2.7kg.
2, pouring and oscillating lining
The main raw materials are magnesia, magnesia aluminum, magnesia chrome, semi-siliceous, semi-zirconium and so on. The oscillating material is dominated by zircon stone. The use of the method is characterized by simple equipment, high construction efficiency, barrel lining fine, long life, can be lining on the lining, refractory low cost.
During which the serial number B ~ D material is mainly used for the repair of the barrel liner.
In addition, the ladle lining damage, but also to use a variety of ways to carry out, minor repair, to improve its service life.
During which the spray is the most effective technical measures, but also optional brick or refractory modified materials for repair.
Ladle lining of the spray, optional dry, centrifugal and flame-type spray machine, the various parts of the barrel wall to repair. Its operating environment is good, labor intensity is low, and the spray layer is fine and durable.
Refractory spray of raw materials should be the same raw materials with the original barrel, the main silicon, aluminum silicate, magnesia chrome, wax stone, zircon and high quality aluminum.

For more information, please click here (http://www.zzrefractory.com/).

评论

发表评论

此博客中的热门博文

Important operation of energy saving in industrial kiln

Energy and environmental problems to the iron and steel enterprises and the ceramic industry and other industries to bring the rapid development of restrictive effects, energy saving and reduce emissions is the enterprise technological progress and can be the energy and environmental pollution, energy and environmental pollution, The inevitable choice for sustainable development. Industrial furnace is the key equipment for industrial heating, widely used in the national economy of high temperature industry. Industrial kiln is also a large energy consumption, its energy consumption accounts for 25% of the total energy consumption, accounting for about 60% of total industrial energy consumption. In the energy saving process of industrial kilns, in addition to heat source transformation, sintering process transformation, combustion process transformation and furnace structure transformation, the furnace refractory and kiln refractory material performance is good or bad energy saving effe
阅读全文

What is the difference masonry way between different parts of refractory bricks?

图片
Refractory brick masonry should be staggered brick joints, brick need to use refractory mud (dry puzzle with dry refractory powder) to fill, masonry process until put into production, to prevent masonry damp. In order to compensate for the volume expansion of the masonry after heating, the masonry needs to be designed according to the design and specification requirements. Refractory brick masonry wall, bottom, roof, pipe lining, brick lattice, combined brick masonry and expansion joints set aside. Masonry wall in accordance with its form is divided into two types of straight wall and curved wall. Straight wall before the masonry, the furnace floor should be the lowest level of the base surface leveling, on the basis of the furnace or steel structure according to the construction line. Measuring the vertical and horizontal center line and other reference line, in ensuring the size of the various parts of the furnace under the principle of accurately find the wall size line. Wall
阅读全文

Analysis of High Bauxite Clinker Quotes

High alumina bauxite clinker is calcined bauxite. Generally,before Alumina Bauxite in the production of high alumina refractory bricks are  the calcined, get clinker, that is, barren material. With this High alumina bauxite clinker as the aggregate in the ingredients, can guarantee the volume stability of the refractory bricks and the size of the accurate. China's bauxite is mostly D-K type, in the calcination process to be decomposed dehydration, secondary mullite and re-crystal sintering three stages. The calcined mineral composition forms corundum, mullite and glass phase according to the ratio of Al2O3 and SiO2 in the raw material. High bauxite clinker is gray, light yellow and dark gray. It is mainly used to produce high alumina refractory bricks, can also be used to make fused corundum. The two major causes of sintering of high alumina bauxite are secondary mullite and liquid phase effects. The former depends on the Al2O3 ratio, which hinders the sintering effect; the la
阅读全文