Details of the production process of refractory bricks:

Refractory bricks are bricks made of refractory raw materials (aggregates), auxiliary materials and adding binders in a certain proportion through mixing, pi forming, drying and other processes and then sintered or non-sintered.

Raw material selection-powder preparation (crushing, crushing, sieving)-proportional ingredients-mixing-pi forming-drying-sintering-inspection-packaging

1. Since there are many raw materials for making refractory bricks, the choice of raw materials is to determine which specifications of refractory bricks are made and to screen the raw materials. Note here is the content of raw materials and the particle content and size of ingredients.

2. The powder preparation process is to further crush and screen the raw materials to meet the production requirements.

3. Proportional ingredients are the precise preparation of raw materials, binders and water in a certain proportion to ensure the performance of refractory bricks in use.

4. Mixing is to uniformly mix the raw materials, binder and water to make the mud more uniform.

5. After mixing, the mud should be allowed to stand for a period of time, so that the mud is fully uniform and then formed, which increases the plasticity of the mud and the strength of refractory products.

6. Forming is to place the mud in a prescribed mold to determine the shape, size, density and strength of the product.

7. The molded brick has a high moisture content, and it should be dried before firing to avoid cracks caused by excessively rapid heating of moisture during firing.

8. After the bricks are dried, the moisture content needs to be reduced to 2% to enter the kiln for sintering. The sintering process can make the bricks compact, increase in strength and stable in volume, and become refractory bricks with certain specifications.

9. After the fired refractory bricks are discharged from the kiln, they can be put into storage after being inspected by the quality inspector.