Introduction of common refractory brick specifications

1. General purpose refractory bricks

It refers to the straight bricks, side thick wedge-shaped bricks, vertical thick wedge-shaped bricks, vertical wide wedge-shaped bricks and arch foot bricks used in the refractory brick lining of industrial furnaces and other thermal equipment.

2. Straight brick laying

Refers to straight walls and flat-bottomed bricks with a straight surface.

3. Radial bricklaying

Bricklaying with a radius, a central angle, and an arc-shaped surface. Radial bricklaying according to the central angle is divided into thrust arches with a central angle less than 120°, semi-circular arches with a central angle equal to 180° and circular bricklaying with a central angle of 360°. According to the types of bricks used for masonry, it can be divided into single wedge-shaped brick ring, which is composed of one kind of wedge-shaped bricks, mixed brick ring, which is composed of wedge-shaped bricks and straight bricks, and mixed brick ring, which is composed of two kinds of wedge-shaped bricks. A double wedge-shaped brick brick ring for building a ring.

4. Flat lay

Bricklaying method in which the large surface of the brick is placed on the horizontal bricklaying base.

5. Side building

The brick laying method in which the side of the brick is placed on the horizontal brick laying base surface (or the surface of the arch tire).

6. Vertical masonry

The brick laying method (also called vertical laying) in which the end face of the brick is placed on the horizontal brick laying base surface (or the surface of the arch tire).

7. Straight brick

The straight parallelepiped brick body composed of three dimensions of length A, width B and thickness C only, the pressing surface formed by length and width is called large surface, the brick surface formed by length and thickness is called side surface, and the brick surface formed by width and thickness The faces are called end faces. There are many kinds of general refractory brick specifications. 8. There is also a simple one that is divided according to the pores, namely 13 holes, 20 holes, 4 holes, 6 holes, 8 holes, which leads to the difference in the rate of stomata and heat flow out. of. Of course, this is also one of the cases. The expansion and contraction of refractory bricks must be the same every time at the same temperature.

There are many kinds of raw materials for refractory bricks, and the composition is mainly divided into six categories: soil, stone, sand, ore, powder and others.

One of the raw materials, soil: bauxite, kaolin, clay, diatomaceous earth

The second raw material, stone: fluorite, kyanite, andalusite, forsterite, vermiculite, mullite, pyrophyllite, chlorite, dolomite, sillimanite, magnesia-aluminum spinel, silica

The third raw material, sand: ceramic sand, zircon sand, quartz sand, magnesia

The fourth raw material, ore: chrome ore

The fifth raw material, powder: metal aluminum powder, silicon micropowder, metal silicon powder

Refractory brick raw material six, others: asphalt, graphite, phenolic resin, perlite, floating beads, sialon, corundum, silicon sulfate, silicon carbide, water glass, silica sol, boron carbide, calcium aluminate cement, nitrided materials , shale ceramsite, alumina, alumina sol, zirconia, etc.