Refractory brick classification for cement kiln

1, high aluminum brick: Al2O3 content more than 75, refractory degrees higher than clay brick, acid and alkali resistance erosion resistance, suitable for cement kiln etc., the use of long life and high price of refractory brick.

2, the dolomite brick: Hang kiln skin performance is good, good erosion resistance, but there are brick in f-CaO number, hydrated, difficult to transport and storage, production with less.

3, magnesia chrome brick: Hang kiln skin good, used for firing zone, the disadvantage is the thermal shock performance is poor, plus six price Cr is highly toxic, the production and use of magnesite chrome bricks in countries gradually reduced, now with this firebrick production unit as soon as possible to find alternatives.

4, spinel brick: mainly used for transition zone, earthquake good performance, anti good reducibility, but refractoriness slightly worse.

5, anti flaking brick: this brick contains a small amount of ZrO, martensite phase transformation occurred during the heating process of the formation of fine crack, with strong alkali resistance, spalling resistance and slag resistance of good.

6, phosphate brick: Refractory degree is low, but the intensity of heat shock resistance, used for refrigerating machine, such as the use of kiln hood.

7, silicon carbide brick: high temperature (1800 degrees, refractoriness under load in the 1620-1640), small thermal expansion coefficient, high thermal shock have good wear resistance suitable for cooling zone and kiln mouth.

8, the silicon mullite brick: thermal shock resistance, high strength, good wear resistance, suitable for transition zone.

Correct methods to select good quality refractories with low cost

High temperature industrial development cannot do without refractorymaterial function, especially in the iron and steel, nonferrous metals, glass, ceramics, cement, petrochemical, machinery, boilers, light industry, electric power, military and other fields, is the basic material of an operation and technology industrial production, with each field of industry continue to increase, the demand quantity of refractory products is also gradually increasing, which requires every manufacturer increase production, while at the same time ensuring the production quality of the product is the most critical, it is also the fundamental in all areas of normal operation. For how to choose the right refractory is introduced in following four aspects:

1 according to the structure, working characteristics and motion conditions of the furnace and the analysis of material damage reasons, in order to choose the appropriate refractory. Accurate understanding and grasp the temperature changes of all parts of the material, carefully observe the material to prevent by all kinds of destructive effects, such as: high temperature molten metal erosion.

2 familiar with the material chemical composition and physical, work performance, so as to give full play to the characteristics of material.

3 so that all parts of the furnace material reasonable match, in order to avoid the mutual damage at the same time between material, but also take measures to ensure that the service life of the whole.

4 basic principles in satisfying the conditions above, to solve the resource and cost as much as possible. Can choose prices and transport costs low material, at the same time, vigorously develop the recycling, reduce the cost of.

We Xinmi Changxing refractories plant convenient transportation, rich in resources, is the base for the production of refractory materials ideal, high-quality refractory raw materials base believe refractory products can produce satisfactory.