Refractory insulating brick and production method thereof

Abstract

The invention discloses a refractory insulating brick and a production method thereof and relates to the field of building materials. The refractory insulating brick comprises river channel mud, fly ash, wood fiber, modified celsian powder, sodium zeolite powder, aerated aluminum powder, sodium-based bentonite, polyacrylate copolymer emulsion, a water reducer, a foaming agent, and a foam stabilizer. The preparation method comprises: stirring and mixing the materials to obtain slurry, pressing the slurry for forming, curing naturally, drying, calcining at high temperature and the like. The refractory insulating brick has low dry density, low unit weight and high compressive strength, features good resistance to high temperature and corrosion, has long life and high reliability, and is simple and convenient to produce and suitable for popularization and application.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a fire-resistant and heat-insulating brick and a preparation method thereof. Background technique [0002] With the rapid development of the national economy and the continuous improvement of people's living standards, the consumption of energy is also increasing, and the problem of energy shortage is becoming more and more prominent. Therefore, people pay more and more attention to energy-saving and environmentally friendly building materials. It is widely used. Usually, the lower insulation brick is made of sawdust, polylight ball, kaolin, bauxite clinker, etc., but the cost of the above-mentioned raw materials is relatively high, and the sintering temperature is high in the process of preparing refractory insulation brick. From Another aspect increases the processing cost. Moreover, the demand for low-density refractory bricks in industrial production is increasing, and the ...

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Problems solved by technology

[0002] With the rapid development of the national economy and the continuous improvement of people's living standards, the consumption of energy is also increasing, and the problem of energy shortage is becoming more and more prominent. Therefore, people pay more and more attention to energy-saving and environmentally friendly building materials. It is widely used. Usually, the lower insulation brick is made of sawdust, polylight ball, kaolin, bauxite clinker, etc., but the cost of the above-mentioned raw materials is relatively high, and the sintering temperature is high in the process of preparing refractory insulation brick. From Another aspect increases the processing cost

Moreover, the demand for low-density refractory bricks in industrial production is increasing, and the requirements for the compressive strength of low-density products are also getting higher and higher. The compressive strength must be above 1.5MPa. However, the low-density refractory bricks currently on the market The above compressive strength cannot be achieved, seriously affecting the reliability and safety of construction projects