Alkaline magnesium refractories characteristics and application prospects Basic magnesium refractories play an important role in the industrial field with their unique characteristics. High-temperature stability is one of their distinctive features, which enables them to maintain structural stability in high-temperature environments and is less susceptible to thermal shock and chemical erosion. Secondly, alkaline magnesium refractories have …

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According to different working environments, the furnace wall can be divided into ordinary furnace wall area, slag line area and hot spot area. Furnace wall is often subjected to high temperature effect and the impact of rapid temperature changes, but also by the direct scouring of liquid steel, slag chemical erosion, as well as mechanical …

3 technical measures to increase the service life of electric furnaces Read More »

Refractory furnace lining, an important component of crucible-type induction furnaces, affects the melting function of the furnace, the metallurgical quality of the steel, and, especially critical, the safety of the operation. As crucible type induction furnace is suitable for melting various casting alloys, such as cast iron, cast steel, copper alloy, aluminum alloy and zinc …

Multi-angle interpretation of electric furnace 5 types of refractories Read More »

Production of refractories for alumina (1) Refractories for rotary kiln. Rotary kiln is divided into pre-tropical, firing belt and cooling belt. Firing belt working temperature is not higher than 1200 ℃, kiln insulation layer structure for the first by the furnace shell laying a layer of refractory fiber felt, and then with diatomaceous earth bricks, …

Application of refractory materials in the non-ferrous metallurgical industry Read More »

Converter is an important equipment for steel making, it is a kind of steel making furnace which does not need external heat source and mainly takes hot pig iron, scrap steel and iron alloy as raw material. According to the nature of the lining refractory material is divided into acid converter and alkaline converter, according …

Technological advances in refractories for steelmaking converters Read More »

The key technology of smelting clean steel is slag-free steel, i.e. the sliding water outlet slag blocking technology is adopted in the steel outlet of converter. Due to the very rapid opening and closing of the sliding plate, it can effectively block the pre-slag and post-slag in the process of steel discharge, and it can …

How to improve the 120t converter slag blocking system refractory material Read More »

Reduce converter turnkey refractory consumption converter lining refractory use is directly related to the safety of the steel plant, operation and production, but also significantly affect the cost of steelmaking process, advanced steel mills and refractory suppliers will be the refractory consumption of the converter as one of the main indicators of its work. Converter …

Practice of reducing refractory consumption of converter package Read More »

AOD converter smelting system basically consists of several parts such as furnace system, gas source device, dust removal system, material supply system and so on. A complete furnace system is a complex linkage including furnace body, drag ring, tilting mechanism, suspension system. The following figure is a typical early AOD converter furnace. Furnace body is …

How to choose AOD converter furnace lining refractories Read More »

Electric Stove The electric furnace steelmaking method mainly utilizes electric arc heat, and in the electric arc action area, the temperature is as high as 4000℃. Smelting process is generally divided into melting period, oxidation period and reduction period, in the furnace can not only cause oxidizing atmosphere, but also can cause reducing atmosphere, so …

Principle and function of each smelting furnace Read More »

The basic principle of the AOD method is the use of gas dilution method, so that the CO partial pressure is reduced. High-pressure argon and oxygen gas mixture blown into the molten steel and bubbles and slag contact opportunities to increase, conducive to carbon, sulfur, non-metallic inclusions, such as the rapid removal. In the smelting …

How to choose the right refractory for AOD furnace Read More »

Steel production due to a variety of furnace working environment and service performance is not the same, so the refractory requirements are different. Refractories for AOD furnaces Since 1968, the American Joslin company invented the AOD steel refining method, since its application has been, has been rapidly popularized. So far, AOD steel refining method has …

Selection of refractories for various refining furnace ladle walls Read More »

The quality of high alumina bricks to improve , no more than high-pressure molding, high-temperature sintering. However, in the production process, it is necessary to start from the source, in order to better ensure the stability of the quality of the product. High-alumina bricks are divided into one, two or three levels High-aluminum bricks are …

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Waste magnesium carbon brick refractory materials regeneration brick-making technology Iron and steel production needs to consume a large number of magnesium-carbon bricks, for the regeneration of magnesium-carbon refractory materials after use provides an outlet, so the regeneration of magnesium-carbon refractory materials after use of the brick technology has become the focus of the development of …

Two recycling methods for waste magnesia carbon bricks Read More »

High alumina brick is a commonly used refractory material, the main component of which is alumina (Al₂O₃). Its alumina content is usually above 48%. According to the different alumina content, it can be divided into multiple grades, such as special grade, first grade, second grade, third grade, etc. High alumina brick has many excellent properties. …

Production process and use of high alumina bricks Read More »

Refractory castables, as an indispensable refractory material, have strength characteristics that are directly related to their quality and performance. In many industrial fields, such as metallurgy, cement production, glass manufacturing and chemical industry, castables play a pivotal role. Therefore, the research and development of high-performance castables is particularly important. It is especially worth mentioning that …

What factors affect the strength of refractory castables? Read More »

Refractory bricks and refractory mortar (1) The working conditions of the mud in the joints of refractory masonry bricks are exactly the same as those of refractory bricks. Therefore, the main technical indicators of the two, refractoriness and chemical composition, should also be the same or compatible. (2) The type and brand of mud should …

Requirements for refractory mortar in refractory brick masonry Read More »

With the continuous acceleration of the industrialization process and the rapid growth of the economy, refractory materials, as key industrial raw materials, play a vital role in the field of high-temperature industry. In the process of widespread use and large-scale production of refractory materials, the environmental problems caused by waste refractory materials have become increasingly …

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Refractory aggregates and refractory powders in refractory castables are collectively referred to as main raw materials, and the rest are called secondary raw materials. Refractory aggregates are the +0.088mm or +0.1mm part of refractory castables. They are the main material in the organizational structure of refractory castables and play a skeleton role. Therefore, refractory aggregates …

7 kinds of corundum refractory raw materials commonly used in refractory castables Read More »

We have shared the construction methods of refractory castables in many articles in the past, including blast furnaces, circulating fluidized bed boilers, etc. Today, taking the second-stage converter in the petrochemical industry as an example, we will briefly share the construction of refractory castables for converters. The construction of refractory castables for the second-stage converter …

Construction steps of refractory castables Read More »

With the development of new dry cement production technology, the corresponding refractory materials have also developed greatly. In addition to the breakthrough of conventional refractory bricks, the performance of fire -resistant pouring materials is also more and more complete, and it is widely used in the irregular parts in the kiln. As we all know, …

How to improve the life cycle of refractory castable Read More »