A kind of composite burn-free refractory brick and its preparation process

Abstract

A new type of composite non-fired refractory brick, characterized in that it includes a central layer, a main body layer and a cladding layer; the central layer is arranged inside the main body layer; the cladding layer is evenly covered and arranged outside the main body layer; The composition of the main layer includes perlite, white cement, bonded clay, fine powder, and water; the composition of the central layer includes waste bricks, ceramic waste, bonded clay, fine powder, and water; the composition of the cladding layer includes perlite, White cement, flame retardant, bonded clay, micropowder, water, additives. The invention provides a composite refractory brick composition and its preparation process. The composite unfired refractory brick of the invention includes a central layer, a main body layer and a cladding layer. The central layer uses waste industrial raw materials as the main raw material, saving The cost of raw materials is reduced; the main layer is the main component of the brick body, and raw materials such as perlite and white cement are selected as the main component. The brick body is light in weight and has a good heat preservation effect; The cladding layer is added to further improve the fire resistance and strength of the brick body. On the premise of retaining the refractory properties of conventional refractory bricks, the present invention reduces the dead weight of the brick body as much as possible and reduces the cost of production raw materials.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a novel lightweight refractory brick and a preparation process thereof. Background technique [0002] Refractory brick is a kind of refractory material with fixed shape and size, which is generally used in construction and chemical fields, and can withstand a certain degree of physical and chemical changes and mechanical effects under high temperature conditions. At present, most of the most common refractory brick materials on the market require high temperature calcination, which consumes a lot of energy, resulting in high production costs and low production efficiency. [0003] Non-fired bricks, also known as chemically bonded bricks, refer to refractory materials that can be directly used for masonry without firing. Its production process is relatively simple, it is made of refractory materials of different materials, and the combination of powder and granules in the prod...

AI Technical Summary

Problems solved by technology

Most of the most common refractory brick materials currently on the market require high-temperature calcination, which consumes a lot of energy, resulting in high production costs and low production efficiency.

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