Refractory bricks
Refractory bricks for sale have a wide range of applications.
It can be applied in metallurgy, electric power, chemical industry, glass, non-ferrous metals, etc.
AGICO’s main refractory bricks include high-alumina bricks, fireclay bricks, silica bricks, magnesia bricks, magnesia carbon bricks, lightweight insulation bricks, acid-proof bricks, alkali-proof bricks, etc.
What Is The refractory fire bricks?
Refractory bricks, referred to as refractory bricks, are excellent refractory materials with certain shapes and sizes.
It is usually light yellow or brown in color.
It is also a kind of cement plant spare parts.
According to the manufacturing process, refractory fire bricks can be divided into fired bricks, unfired bricks, fused electric bricks, and refractory insulation bricks.
Refractory fire bricks can be used in high-temperature building materials and structural materials for kilns and various thermal equipment to resist various physical and chemical changes and mechanical effects.
Refractory bricks belong to a kind of refractory material with a certain shape and size, mainly made of refractory clay.
It is mainly used in melting furnaces and can withstand high temperatures between 1580°C and 1770°C.
If you are looking for refractory bricks, please feel free to contact us for more information.
Alkali Resistant Bricks
Alkali-resistant bricks are a kind of new type semi-silica refractory material which have good performance in alkali-resistance erosion.
Alumina Bubble Bricks
Alumina bubble bricks, also called alumina lightweight insulating fire bricks, are an insulating refractory product mainly composed of alumina hollow spheres.
Alumina Silica Fire Bricks
Alumina silica fire bricks are a kind of refractory bricks containing Al2O3 and SiO2 and are a series of alumina silica fire bricks.
Silica Bricks
Silica Bricks are made of quartz stone material, and the content of SiO2 is more than 96%.
Fire Clay Bricks
Fire clay bricks for sale are a kind of aluminum silicate refractory material. Fire clay bricks are made from clay minerals.
Magnesia Bricks
Magnesia bricks for sale are basic refractory bricks materials whose MgO content is more than 90% and adopt periclase as the principal crystalline phase.
AGICO Price of kiln bricks for sale
We all know that refractory bricks are made of special materials.
Ordinary bricks cannot withstand very high temperatures.
Therefore, it is necessary to use such high-strength, high-temperature-resistant materials as masonry for various industrial furnaces.
In industrial production, almost all high-temperature furnaces require refractory bricks.
Such as glass factories, ironmaking, steelmaking, refining furnaces, electric furnaces, drying equipment, muffle furnaces, etc.
Limekiln refractory bricks are relatively simple.
Due to its lower requirement for calcination temperature, the maximum temperature does not exceed 1300°C.
Therefore, the refractory brick lining used is generally high alumina refractory brick.
Lightweight insulation bricks can be used for the insulation layer.
The lime shaft kiln has thicker bricks.
The thickness of 250m3 lime shaft kiln bricks can reach 1000mm.
The brick thickness of the rotary kiln is only about 200mm.
In addition, refractory concrete can also be used.
In recent years, special high-alumina refractory bricks, such as wear-resistant high-alumina refractory bricks, have also been used in the calcining zone of shaft kilns.
The size of refractory bricks usually adopts standard type, the model is 230*114*65.
The price of different types of refractory bricks is also different. The price of ordinary clay refractory bricks is lower, and the price of magnesia carbon bricks is higher.
You buy refractory bricks for all your needs at the AGICO factory at competitive prices.
refractory fire bricks manufacturing process
AGICO is a professional manufacturer of cement spare parts.
At the same time, it also provides users with various high-quality cement equipment. Welcome to inquire!
The production process of refractory bricks consists of five parts.
Firstly, crushing. The purpose of this process is to check whether the refractory brick raw materials are broken, whether the particle classification is clear, whether the supercritical particles are completely removed, and whether the particle size distribution meets the predetermined requirements.
Secondly, batching. The program confirms that the formula and weighing are correct, the order of feeding meets the regulations, and the type, concentration, and dosage of the binder meet the requirements.
Then, press tight. The key point of this step is to check whether the forming tool conforms to the model and size specified by the brick type, whether the forming pressure is appropriate, and whether the forming operation is standardized.
Then, drying. The drying speed, drying time, and drying speed are strictly controlled according to regulations. After drying, check whether the refractory brick body is dry and cracked, and remove it if any.
Finally, firing. This key step must strictly implement the thermal operating system and firing system, heating rate, firing atmosphere, holding time, kiln installation method, etc.
fire bricks performance
The general properties of refractory bricks include chemical mineral composition, microstructure, mechanical properties, thermal properties, high-temperature performance, etc.
Some of these are measured at room temperature, such as porosity, bulk density, true density, and compressive strength.
According to these properties, we can predict the state of refractory bricks at high temperatures, and some are measured at high temperatures, such as refractoriness, thermal shock stability, slag resistance, high-temperature volume stability, etc.
These characteristics reflect the state of the refractory brick at a certain temperature, or the relationship between it and the outside world at that temperature.
Refractory bricks usually have the following properties
- High refractoriness
- Excellent softening temperature under load
- High-temperature volume stability
- Good thermal shock resistance
- Better corrosion resistance
- Good wear resistance
Classification of refractory bricks for sale
According to the different constituent materials, the refractory bricks sold can be divided into the following categories:
Aluminum Silicon Refractory Brick
The alumina-silicate brick series includes high-alumina bricks, silica bricks, mullite bricks, corundum bricks, clay bricks, etc., all of which are acidic refractory materials containing Al2O3 and SiO2.
In addition, they also have good properties such as high refractoriness, thermal shock resistance, and wear resistance.
Magnesia Brick Series
Magnesia brick is an alkaline product with MgO content above 80%.
Magnesia bricks can generally be divided into sintered magnesia bricks and chemically bonded magnesia bricks.
Magnesia bricks can be further divided into magnesia carbon bricks, magnesia chrome bricks, and magnesia spinel bricks.
Insulation Refractory Brick Series
Heat-insulating refractory brick is a kind of lightweight heat-insulating refractory material, which is made of high-quality clay as the main raw material and sintered at high temperatures.
Insulating refractory bricks are mainly used for the heat insulation layer of kilns to prevent temperature loss.
It mainly includes mullite heat-insulating refractory bricks, lightweight heat-insulating refractory bricks, high alumina heat-insulating refractory bricks and alumina bubble heat-insulating refractory bricks, etc.
Alkali-Resistant Brick Series
Alkali-resistant brick is a new type of alkali-resistant clay (or semi-silicon) refractory material with excellent alkali corrosion resistance.
Covering ordinary alkali-resistant bricks, high-strength alkali-resistant bricks, arched alkali-resistant bricks, and thermal insulation alkali-resistant bricks.
Acid Resistant Brick
The main component of acid-resistant bricks is silica, which forms a large amount of mullite under high-temperature roasting, which is a substance with high acid resistance.
Acid-resistant bricks are widely used in iron and steel non-ferrous materials, glass chemical industry, chimney flue, and other places.
