Novel refractory material for High- Temperature, High- Alkaline Environment
The use of traditional refractory materials is restricted by factors that reduce the energy efficiency of the process, such as: chemical reactions, mechanical degradation caused by the use environment, temperature and installation restrictions, and expensive maintenance costs. Decreased insulation performance of refractory materials will increase process heat loss, and frequent maintenance requires cooling and reheating of the furnace or refractory materials, resulting in additional energy loss and reduced productivity.
Newly manufactured materials are expected to provide an alternative to high-temperature, highly alkaline environments capable of operating at high temperatures or for extended periods of time. This saves more heat into the manufacturing process and related materials, allowing it to be installed or repaired more efficiently, reducing lead times and improving energy efficiency.
It aims to improve the overall energy efficiency of the process by 5% through the use of materials leading to 20 improvements in (aluminum smelter, liquefied black gas supply, coal gas supply, glass melting, liming, etc.) efficiency. Process (more columns may be used). This can be achieved by using materials with low thermal conductivity (low heat loss from the furnace walls), materials that are corroded or corroded, or materials that can operate at high temperatures (create furnaces).
The materials produced in this project can help increase the overall efficiency of furnaces and process vessels used in aluminum, chemical, forestry, glass and steel by reducing waste heat and extending furnace life.
The main obstacles include:
• Lack of refractory composition, reduced sensitivity to the use environment and refractory material reaction and mechanical degradation
• Lack of application of newly developed refractory material installation technology and process
• Lack of comprehensive setting options for line maintenance (heat)
The application of refractory materials is restricted by many factors, including the chemical reaction between the use environment and the refractory material, the mechanical degradation of the use environment to the refractory material, and the temperature limitation when using the refractory material. Install or repair refractory materials profitably or during the service of the ship.
This series of refractory materials will subsequently be suitable for high-temperature, high-alkalinity industrial environments, such as those in the aluminum, chemical, forestry, glass and steel industries.
Usable energy equipment for the incineration of solid biofuels usually operates under harsh conditions. The internal structure (lining) of the equipment is made of refractory materials and is affected by complex loads: thermal, mechanical, and chemical (ie, high temperatures up to 1200°C, chemical effects of alkaline compounds and slag, repeated thermal shocks, and abrasion) are made of solid Caused by particles, etc.). Most of the traditional refractory materials that can be used in the lining of such equipment are not durable. Under certain usage conditions (such as local high temperature, the influence of
alkaline biofuel combustion products, etc.), the durability of traditional materials is only 1 to 2 years. The operating conditions of specific types of bio-fuel boilers should be considered to create opportunities for the application of new refractory materials. In this section, the data on the characteristics of refractory materials used in biofuel boilers are reviewed, and the influence of the aggressive operating conditions of the thermal equipment on the properties of refractory materials is discussed. In addition, the research results of the alkali resistance of refractory castables and their explosive spalling are also discussed. Suggestions for the use of refractory materials in bio-fuel boilers are also put forward.
This article was originally published on https://www.rrmsb.com/post/novel-refractory-material-for-high-temperature-high-alkaline-environmentRE