Al2O3-SiC-C Brick For Hot Metal Ladle And Torpedo Car

Al2O3-SiC-C Brick For Hot Metal Ladle And Torpedo Car

Al2O3-SiC-C brick, with corundum, bauxite, silicon carbide and graphite as raw materials, phonetic resin as binder, added with expansive agent and modifying agent, is characterized by good thermal shock resistance, good erosion resistance, and non-sticking slag. It is used for torpedo car and hot metal ladle, and can meet request of customers

Tundish Slag Dam,Tundish Refractory,China Refractory,Metal Refractory,Refractory Material,Refractory Product

Tundish Slag Dam

The products are characterized by their high strength, good resistance to carrion and thermal shock and long service life. It can be effectively stabilization molten steel enter to mould, promote non-metallic inclusions in molten steel float, and improve the quality of steel. 

Monoblock Stopper,Ladle Refractory,Tundish Refractory,China Refractory,Refractory Material

Monoblock Stopper

According to the quality of the materials, the monoblock stopper of our company can be classified into aluminum carbon, aluminum-zirconium carbon and aluminum-magnesia carbon. This product enjoys performances including favorable slag resistance, strong fracture resistance at normal temperature, fine liquid steel resistance and washing erosion, to ensure reliability in the course of product usage.

Monoblock Stopper,Yilong Refractory ,Refractory Material,Refractory Product

Monoblock Stopper

Yilong’s stopper rods are made from alumina-carbon in isostatic presses with zirconia inserts and/or magnesia tips as necessary for optimum performance. Argon channels are likewise available to suit a particular operation. Stopper rods are all X-rayed before shipment to eliminate flaws and cracks. Stopper rods can be supplied bare or with mounting hardware as required.

Alumina Bubble Products,Refractory Products,Refractory Material

Alumina Bubble Products

The product used the alumina hollow ball as the main raw material, high-performance powder as additives, and organic material from the temporary binding agent. After mixing, drying, forming, firing at high temperature shuttle kiln made. The material is widely used in carbon black furnace, gasifier, gas furnace, hydrogen furnace, as well as shuttle kilns and other high-temperature furnace equipment. Products, dimensions, physical and chemical indicators of useful life are up to customer requirements. The company produced lightweight insulation refractory material by its high purity, mechanical strength, and low thermal conductivity.

Submerged Entry Nozzle,Nozzle Refractory,Yilong Nozzle,Refractory Material

Submerged Entry Nozzle

Based on functions, the submerged entry nozzles manufactured by our company are classified into plug-in type, hanging type and fast renewal type; and based on material quality, nozzles mainly classified into aluminum carbon, zirconium carbon and magnesia carbon. This product enjoys performances of purifying liquid steel, prevent liquid steel oxidation, with good liquid steel washing resistance and erosion resistance. 

Design of AOD Molten Pool

    For the design of AOD molten pool, it is better to choose flat molten pool. The flat kind has been proved to be the best one according to the past experience.

   One special feature of the flat molten pool is that its furnace bottom conic section is short and its ratio of molten pool diameter to height is big, D/H is not less than 2.2, while in conventional AOD design, D/H is always no more than 2.2. It is also proved that relatively flatter molten pool has great effect on metallurgical properties of the furnace, especially for its decarbonization function. What’s more, it has the following four advantages for using flat molten pool.

1. It can reduce CO partial pressure in bubble surface, speed up decarbonization and improve the efficiency by 15%.

2. Shorter blowing and converting time.

3. Lesser consumption of reductive silicon.

4. Lower refractories cost due to no backpack.

Refractory,Refractory Material,Yilong Refractory Products

Yilong Refractory

Yilong Refractory supplies refractory products and material over the world for more than 20+ years.Refractory including castable cement,nozzle,firebrick,insulating refractory,coating material,slide gate fire clay refractory,alumina refractory,plastic refractory which used in EAF,blast furnace,ladle,tundish,metallurgy or other industry.

Global and China Refractory Material Industry Report, 2010-2011

Global and China Refractory Material Industry Report, 2010-2011 

 

      Vigorously fueled by such high-temperature industries as steel, cement, glass, and nonferrous metal in recent years, the output of refractory material in China climbed to 28.08 million tons in 2010 from 14.77 million tons in 2003, with the CAGR of 9.6%; hereinto, the energy-saving and eco-friendly unshaped refractory contributed more than 1/3. Meanwhile, the export volume of refractory product increased substantially from 827 kilotons in 2003 to 1792.8 kilotons in 2010, with the CAGR of 11.7%.
      The necessary refractory material for cement industry, the second largest consumption field of refractory material, mainly cover basic refractory material (magnesite brick, magnesite-chrome brick, magnesite-alumina brick, etc.), Al-Si refractory material (high alumina brick, fireclay insulating brick, etc.), and heat insulation refractory material. Wherein, magnesite-chrome brick is most commonly employed in cement kiln firing zone; nevertheless, chromium ion brings about serious pollution against high temperature, magnesite-chrome brick has therefore been gradually replaced by chrome-free refractory material like dolomite brick and magnesia spinel brick in recent years.
      Apart from the supply and demand of refractory market, this report underlines not only the market segments of fusion-casting refractory, basic refractory material, unshaped refractory material, and ceramic fiber but the industrial competition pattern including regional pattern and enterprise pattern.
      Refractory production bases have gradually taken shape in Henan, Shandong, Liaoning, and Shanxi, centering on the characteristics of various raw mateiral origins. In 2010, the output of the above mentioned four bases contributed 87.9% to the national total, of which, Henan ranked the first with approximately 50% share. Liaoning is abundant in magnesium ores and it produced 5.53 million tons of refractory in 2010; hereinto, magnesia refractory registered 5.45 million tons.

Release the positive energy of refractory development

                      Release the positive energy of refractory development

          China has abundant mineral resources, including magnetite, bauxite has an absolute advantage, but in recent years with the refractory and related industries, the rapid development of these mineral resources, especially high-grade refractory materials have been fewer and fewer resources . Meanwhile, the disorderly exploitation, processing technology level is not high, the low level of resource utilization and waste more serious. China Refractory Industry Association official said, refractory raw material resources are imperative to cut costs. Rational use of fine ore, low grade ore is refractory industry resource conservation for sustainable development urgent task. In addition, waste treatment and recycling of refractory environmental protection, clean production and sustainable development of the refractory industry to achieve significance.

       "Promoting healthy and sustainable development of the refractory industry, a number of opinions" that will strengthen energy saving. Strengthen energy conservation management, and increase technological innovation, high energy-consuming equipment to improve high-temperature furnace energy efficiency, reduce unit energy consumption refractory products, and promote high-temperature kilns lightweight, high efficiency, energy saving. Development of monolithic refractory and unburned products. Development of "green refractory" to encourage recycling after use refractory. At the same time, will increase the level of resource utilization and protection capability as the refractory industry development goals, production capacity for high-end refractory, magnetite ore resources comprehensive utilization of mineral resources comprehensive utilization of refractoryclay are put forward specific development goals.

       En1.chinaelong produces refractory with low price and good quality, are exported to overseas, and gets the domestic and foreign customers consistent approval

Focus on the study and development of refractory industry in China

China is the is the biggest country of refractory producing and consuming, and total production quantity in 2011 was 29,5 million ton, which made up 62% of total output in the word. Henan province is the base of refractory materials, and the production quantity is 13,86 million ton, which made up 47% of total output in China and whose importance should not be ignored.

Energy conservation and emission reduction has become more and more important, it will take a series of technology and policy measures to promote long life and adjustment of structure in high temperature industry such as iron and steel, nonferrous metal, and petrochemical industry. How to make high quality refractory material and carry out key important technology project with proprietary intellectual property rights is a main measure in promoting the improvement of refractory industry.

At this time, there are several advanced enterprises who are major in manufacturing technology and possessing all kinds of advanced refractory materials and casting materials, which makes a industry with great variety of goods and distinctive characteristics. By combine with producing, learning and producing, which mostly already establish an advanced refractory industry, and researching ability is abundant. In the areas of blast furnace, cowper stove, aluminium cell, cement kiln, glass kiln and coal chemical industry, Henan refractory enterprises all have abilities of forming complete set, technological innovation and product researching. Henan province has hold the basis element of future innovation in refractory industry.

In the future, the farther living and development of refractory industry in Henan should be base on cooperation, to establish a series of key techniques with proprietary intellectual property rights and solve the bottleneck of industry development in order to promote industrial competitiveness. Base on the improvement of researching, innovation, equipments and scale rather than relying on expanding of quantity.