Carbon Brick

Carbon brick, as a high-temperature refractory material, are widely used in blast furnaces, electric furnaces and chemical equipment. The advantages of carbon bricks are very prominent.

Excellent high temperature resistance

It can work stably at temperatures up to 2000 ° C or even higher. This makes it excellent in high temperature industrial furnaces such as metallurgical furnaces and other application scenarios.

Strong chemical stability

It has good tolerance to many corrosive media. It can resist acid, alkali and other chemical substances.

Good electrical conductivity

In some areas that need conductive function, such as electrolytic cell lining in the electrolytic aluminum industry, it can effectively conduct current to ensure the smooth progress of the production process.

High mechanical strength and wear resistance

In the case of greater pressure and friction, can still maintain the integrity of the structure, reduce losses. Thereby it extends the service life of the equipment and maintenance cycle, reduces production costs.

Types of carbon brick

Carbon bricks mainly include the following types:

Graphite carbon brick

Rich in graphite, the addition of graphite makes its electrical conductivity, thermal conductivity and lubricity significantly improved. You can often use it in fields with high electrical conductivity requirements. Such as electrode manufacturing and some special high-temperature conductive equipment. And its performance advantages are fully played in these application scenarios.

Magnesia carbon brick

Magnesia and graphite as the main raw materials, with good slag resistance and thermal shock stability. You can widely use it in steelmaking and other fields. The magnesia carbon bricks price is different due to raw material quality, production process and other factors. And you should consider it comprehensively in cost control and performance selection.

In addition, there are some special specifications and uses of carbon bricks, such as carbon brick lining. You can specially use it for lining protection inside the equipment to resist corrosion and wear. Carbon thin bricks play a role in some scenes with special requirements for thickness. While carbon black bricks also have a place in some specific areas because of their unique properties.

Carbon brick manufacturing process

The production of carbon bricks mainly involves the following steps:

Step 1: Raw material selection

Choose high-quality anthracite, coke, etc., control the purity and granularity of raw materials. Anthracite is the main one, and strictly control the relevant indicators.

Step 2: Pretreatment of raw materials

Through high temperature roasting, crushing and screening, remove impurities, adjust particle size, and accurately control parameters.

Step 3: Mix and knead

Mix the raw material and binder proportionally, control the temperature, time, etc., and ensure the quality of the mud.

Step 4: Molding and drying

The mud material is molded into the mold. And then dried to remove moisture and volatiles, and the drying conditions are carefully controlled.

Step 5: Roasting

Body high temperature roasting, set the temperature, heating rate and other parameters, improve the performance to meet the needs of use.

Uses of carbon bricks

The use of carbon bricks is extremely wide, the following are some common application directions.

Metallurgical industry

In the iron blast furnace and steel furnace and other metallurgical furnace lining, carbon bricks as a key refractory material. It can withstand the erosion and erosion of high temperature hot metal and slag. This provides guarantee for the long-term stable operation of metallurgical furnace. Among them, magnesia carbon brick in the process of steelmaking, because of its good slag resistance and thermal shock stability, plays an important role.

Non-ferrous metal smelting

In the electrolytic aluminum industry, you can widely use carbon bricks as the lining material of electrolytic cells. It can not only withstand high temperature and highly corrosive electrolyte environment, but also effectively conduct current, reduce energy consumption in the electrolytic process. And improve the production efficiency and purity of aluminum.

Chemical industry

Many chemical reactions need to be carried out in high temperature, high pressure and corrosive environment. You can widely use carbon brick lining in reactors, heat exchangers and other equipment. It can resist the erosion of various chemical media, prevent damage to equipment, to ensure the continuity and safety of chemical production. In some containers that store corrosive liquids or gases, you can also use carbon bricks a lining material to extend the service life of the container and reduce maintenance costs.