Foreign refractory recycling situation

Developed countries attach great importance to the re-use of refractories from resources, environmental protection height to understand, even with the development of laws and regulations strictly limit emissions after the refractory, which greatly promoted the study of the refractory recycling after refractory recycling rate has reached more than 60% and rising.

Japan to scrap steel slabs based raw materials, developed around the bottom of the ladle ramming mixes, ladle castable and styling products, such as: with 85% recycled material and 15% of new material to produce a molten pool area with no burning furnace brick, with 90% recycled material and 10% new material to produce electricity lines slag MgO-C, as well as all recycled materials to produce RH bottom burned magnesia chrome brick. Secondary use of technology Kashima Steel has developed a skateboard brick, using surface grinding, pouring castable recovery method, the Mosaic law makes skateboard ring after the repair has reached a new skateboard using the same effect; scrap iron ditch refractories are repeated use, primarily as A12O3-SiC-C castable aggregate.

Italian company has developed a method for recovering the refractory technology, mainly used for recycling of the furnace , tundish , ladle ingot mold and the refractory lining , and the recovered blowing directly into the furnace refractories to protect the furnace wall . American Refractories previously only a small amount of waste recycled , the rest almost completely buried. 1998 U.S. Department of Energy , Department of Industrial Technology and steel producers jointly developed a three-year plan to extend the life of refractories and refractory waste recycling .Refractory Factory cooperation with users to minimize the amount of the waste refractories . The United States also after dolomite brick as a soil conditioner and slagging agents were studied , and achieved good results.

India conducted the first study of waste refractories can be traced back to 1978, first in the steel company to carry out, the use of Indian steel company (now known as TISCO steel Branch) high alumina brick furnace waste generated (60% to 62% aluminum) production castable (56% alumina), fire clay (50% alumina) and fire-resistant plastic. Developed material which is mainly used for the production of cast burner tiles, dampers, tiles, etc., and can meet the requirements within the industry.