A kind of preparation method of low shrinkage compact split brick

Abstract

The invention discloses a preparation method of a low-shrinkage compact split brick, which belongs to the technical field of building materials. In the present invention, carbonized rice husk material, fly ash, boron oxide, magnesia, calcium chloride, brown sugar, urea, clay powder and emulsion ball mill are firstly mixed to obtain a ball mill, which is continuously passed through the ball mill under heating conditions. Inject argon gas, let it stand for stratification, remove the surface oil phase, and vacuum degas to obtain the water phase slurry; then press filter and dehydrate the water phase slurry, adjust the water content with the Bacillus pasteurian bacteria liquid, and then Stale, to obtain stale materials, then extrude the stale materials, cut, dry, and then fire at high temperature, and then undergo splitting, sorting, and storage in order to obtain low-shrinkage and dense split bricks. The low-shrinkage compact split brick prepared by the technical scheme of the invention has the characteristics of low shrinkage, excellent mechanical properties and thermal stability.

Description

technical field [0001] The invention discloses a preparation method of a low-shrinkage compact split brick, which belongs to the technical field of building materials. Background technique [0002] Split bricks, also known as split bricks and split bricks, are a kind of traditional ceramic wall tiles. Because of their unique texture and delicate texture, they have been widely favored for many years. The traditional split brick is a kind of homogeneous brick, facing brick and exterior wall brick, with shallow grooves on the surface. Split bricks are generally made of various clay or feldspar and other pottery raw materials through dry crushing and water or wet ball milling and filtration to make water-containing wet mud, and then extruded by a vacuum screw extruder equipped with a hollow mold. It becomes a hollow body that connects two pieces of bricks into one body by flat and thin ribs, then cuts and dries, then fires, and then splits into two products by hand or machine a...

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: aiming at the disadvantages of traditional split bricks, such as large