Recent development of refractory industry abroad


Russia: at the International Conference of Russian refractories and metallurgical workers held this year, the report of the "alternative import scheme for refractory industry" issued by the anti-corrosion company of bolovic refractory company, which introduces the current situation of the refractory industry in Russia. He believes that for refractories, the development from fixed products to amorphous refractories (mainly refractory castables) is the trend. The use of amorphous refractory can not only increase the lining life of traditional metallurgical equipment such as blast furnace, ladle and tundish, but also reduce the amount of work before the furnace and improve the lining speed. The obvious progress in this area is the production and application of andalusite products, and its application scope has been extended to cement rotary kiln, blast furnace and hot blast furnace.

The future development of refractory materials mainly includes the following aspects: in the aspect of uncertain refractory, it is mainly refractory castable, which is used for the lining of blast furnace (spray repair technology), iron ditch of blast furnace outfield, lining of ladle and ladle, external treatment equipment of molten steel furnace, heat exchanger of circulating ring outside dry cement kiln, and heat insulation material and refractory for repair. In the aspect of fixed refractory, new clay bricks and high aluminum bricks with high technical potential are produced, such as lining materials for some areas of cement kilns, flow steel bricks, firebricks for blast furnace and hot blast furnace, red pillar brick for blast furnace and hot blast furnace, products for anode roasting furnace, clay and high aluminum heat insulation brick, etc.

In order to produce refractory products that meet the requirements of users, high purity mineral materials with low impurity content must be used. This kind of raw material is relatively lacking in Russia. Secondly, it should be said that such raw materials not only need refractory industry, but also need, even more urgent, in neighboring industries. The main reason for the price increase is the lack of supply, the exhaustion of old mines and the absence of new development mines, which has deepened this shortage. Russia lacks high-quality raw materials and chemical additives for refractory production, so it must be imported from abroad. Refractory manufacturers should make up for the short plates of raw materials, some of which rely on the flow of raw materials, on the one hand, expand the list of alternative materials and their suppliers. However, due to the special process requirements for refractory raw materials, this measure sometimes fails to work together.

The basic development direction of Russian refractory market is inseparable from the international development trend: the production of indefinite refractory develops at a certain growth rate. First, castable materials have produced innovative refractory products. The use of these refractories in the lining of thermal equipment can guarantee the improvement of technical and economic indexes. The production strategy of the enterprise depends on the prediction of the development of refractory products and services markets in Russia and CIS countries. Further modernization and transformation of existing process, priority should be given to the development of new and customer demand products and services, and the establishment of flexible production line, so that it can adjust production according to user orders, can produce small batch products as well as large-scale products, develop their own raw material base, including the utilization of old mines, promotion of energy saving technology, etc. Owning the enterprise's own technology and production improvement center is the key factor to success in the process of innovation and promotion. Its task is to research and produce new refractory products and provide technical and technological support during the whole cycle of the products.

Australia: in Australia, ausmag, a subsidiary of korab resources, a representative of the refractory industry, is working to commercialize Winchester magnesite. Winchester magnesite is only 60 kilometers away from Darwin port in northern Australia. The mineral resources reserve of the company is estimated to contain 16.6 million tons of magnesium carbonate and 43.2% of magnesium oxide. Korab reported on the latest feasibility study results, with the main purpose of developing Winchester project into direct mineral mining operations.

The study shows that in the 12 years of the project, if the price of magnesium carbonate in magnesite is fixed at $105 per ton, it will generate pretax income of $61600 million to US $640.2 million. In addition, capital expenditure is estimated to be reduced to $2.4 million to $2.5 million. These results are based on a conceptual mine, which is produced at different levels of mine production: 370000 tons per year, 750000 tons per year and 1 million tons per year. Korab has held talks with three potential contractors and terminated an initial framework agreement for 300000 tons of annual procurement in five years in march2018, which is immediately considered to be below the current market procurement level and is looking forward to better transactions. Although it is normal to calcine magnesium (so that no tons of water is transported) near the resources, it is not a normal time. Several companies have preferred to ship them to other locations for high temperat