Jul112023 by adminrs
Detailed Explanation of Refractory Materials for Various Industrial Kilns.

Detailed Explanation of Refractory Materials for Various Industrial Kilns.

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What are the classifications of refractory materials for industrial kilns? Generally speaking, they can be divided into four types: refractory materials for glass tank kilns, refractory materials for cement kilns, castables for ceramic kilns, and refractory materials for coke ovens. For specific details, please refer to the following explanation by experts from a refractory material factory in Henan. 1.Refractory Materials for Glass Tank Kilns Considering various factors that lead to the damage of kiln lining, such as chemical erosion, mechanical…
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Jul82023 by adminrs
3 Reasons Why Refractory Bicks Can Resist Fire

3 Reasons Why Refractory Bicks Can Resist Fire

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Refractory bricks are inorganic non-metallic materials with a refractoriness not lower than 1580℃. They serve as fundamental materials for high-temperature technology and are used as structural materials for constructing kilns, furnaces, and other thermal equipment. They are also functional materials used in the manufacturing of certain high-temperature containers, components, or for specialized purposes. In order for refractory bricks to be successfully used under high-temperature conditions, they must possess good organizational structure, thermal properties, mechanical properties, and usability. This means they…
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Jul72023 by adminrs
What kind of castable has a long service life for the kiln mouth of a rotary kiln?

What kind of castable has a long service life for the kiln mouth of a rotary kiln?

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Several years ago, steel fiber corundum castable and high-alumina castable were used for the kiln mouth of the rotary kiln, but the results were not satisfactory. They were prone to cracking and had poor thermal shock resistance, resulting in a short service life and increased costs. Refractory castable is composed of aggregates, powders, binders, additives, water, and other liquid materials. Under high-temperature conditions, it exhibits good sintering performance, volume stability, corrosion resistance, and high-temperature mechanical properties. The refractory lining at…
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Jul72023 by adminrs
Production and Process of Corundum Bricks

Production and Process of Corundum Bricks

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Corundum bricks are refractory products mainly composed of corundum as the primary crystalline phase in the aluminum-silicon system. These bricks possess excellent high-temperature mechanical properties, corrosion resistance, and good abrasion resistance. Raw Materials: Natural hydrated aluminum oxides, including boehmite and diaspore, can be dehydrated through heating to obtain aluminum oxide (γ-Al2O3). This is then further heated to 1450°C, transforming it into corundum (α-Al2O3). However, due to the limited natural reserves of natural corundum and pure boehmite, industrial alumina is predominantly…
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Jun302023 by adminrs
Refractory Bricks for Cement Rotary Kilns

Refractory Bricks for Cement Rotary Kilns

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The dimensions of refractory bricks for cement rotary kilns are closely related to the lifespan of the kiln lining. The height (h) of refractory bricks for cement rotary kilns determines the thickness of the kiln lining. On one hand, the thickness of the kiln lining affects its weight, which in turn affects the deformation of the kiln body and the mechanical stress on the lining bricks. On the other hand, the thickness of the kiln lining also affects the surface…
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Jun302023 by adminrs
The Concerns of Refractory Brick Buyers Beyond Price

The Concerns of Refractory Brick Buyers Beyond Price

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When purchasing refractory bricks, some buyers often only consider the price of the bricks while neglecting their own usage requirements. This is a mistake because purchasing refractory bricks that do not meet their own requirements will only result in partial effectiveness. Generally, the following principles should be followed: Understanding the characteristics of the furnace or kiln Based on the structure of the furnace or kiln, including the working characteristics and operating conditions of each part, refractory bricks should be selected…
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Jun292023 by adminrs

24 Common Refractory Raw Materials for Unshaped Refractory Castables

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Refractory castable is a type of refractory material that is composed of a certain gradation of refractory aggregates and powdery materials, combined with binders and additives. It is a class of refractory materials that can be used directly without the need for molding and firing processes. Refractory castables do not require high-temperature firing and can be used directly after construction and curing. They have the advantages of simple production process, energy and labor saving, mechanized construction, good overall integrity, easy…
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Jun272023 by adminrs
Introduction to Silicon Carbide Brick Products

Introduction to Silicon Carbide Brick Products

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Silicon carbide brick refers to refractory bricks with silicon carbide as the main raw material and silicon carbide as the main crystalline phase. Silicon Carbide Refractory Bricks have good acid resistance, alkali resistance, wear resistance, high strength, high thermal shock resistance, low coefficient of thermal expansion, and good thermal conductivity. However, they have the disadvantage of poor oxidation resistance at high temperatures and relatively higher prices. In the metallurgical industry, silicon carbide bricks are suitable for special parts of furnaces…
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Jun262023 by adminrs
What Are the Differences in the Production Processes of Directly Bonded Magnesia-Chrome Bricks and Ordinary Magnesia-Chrome Bricks?

What Are the Differences in the Production Processes of Directly Bonded Magnesia-Chrome Bricks and Ordinary Magnesia-Chrome Bricks?

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The main difference between the production processes of directly bonded magnesia-chrome bricks and ordinary magnesia-chrome bricks lies in the former's use of raw materials with lower impurity content and higher firing temperatures. The raw materials used to produce directly bonded magnesia-chrome bricks typically have an MgO content greater than 95% and a Rongsheng refractory material content greater than 97%. The particle bulk density is around 3.25 g/cm3, and the SiO2 content in the gangue is generally limited to below 3%.…
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Jun262023 by adminrs
Acid Resistant Fire Bricks

Acid Resistant Fire Bricks

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Application of Acid Resistant Bricks: Acid resistant bricks are widely used for lining towers, tanks, containers, and reactors in industries such as petroleum, chemical, fertilizer, pharmaceutical, brewing, dairy, papermaking, smelting, chemical fiber, power generation, and gas. They are also applied in underground sewage channels and open ground workspaces, showcasing their corrosion resistance capabilities. Additionally, acid resistant bricks are an ideal choice for anti-corrosion and insulation linings in chimneys of thermal power plants. They find application in the chimneys and flues…
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