Thermal shock-resistant corrosion-resistant refractory brick for garbage incinerator and preparation method thereof

Abstract

The invention discloses a thermal shock-resistant corrosion-resistant refractory brick for a garbage incinerator and a preparation method thereof. The thermal shock-resistant corrosion-resistant refractory brick is prepared from 25-40 parts by weight of wollastonite, 41-53 parts by weight of gypsum-slag cement, 19-31 parts by weight of chrome slag, 6-12 parts by weight of sodium tungstate, 15-25 parts by weight of stibnite, 10-15 parts by weight of poly(aluminum-ferric chloride), 22-34 parts by weight of andesite, 16-29 parts by weight of natural manganese sand, 11-18 parts by weight of sodium polyacrylate, 32-44 parts by weight of kimberlite tailings, 17-30 parts by weight of white jade, 5-10 parts by weight of konjac gum and 20- 30 parts by weight of zirconium-containing silica residues. Through use of chrome slag, sodium tungstate and stibnite, thermal shock resistance of the refractory brick is remarkably improved and material damage caused by the change of the temperature of the garbage incinerator is reduced. Through use of the andesite, natural manganese sand and white jade, acid and base corrosion resistance of the refractory brick is remarkably improved to resist garbage incinerator interior corrosion caused by acid and base substances.

Description

technical field [0001] The invention relates to a heat-shock-resistant and corrosion-resistant refractory brick for a garbage treatment incinerator and a preparation method thereof, belonging to the field of refractory materials. Background technique [0002] Refractory bricks are refractory materials with a certain shape and size made of refractory clay or other refractory raw materials, and can withstand high temperatures of 1580°C-1770°C. According to the preparation process, it can be divided into fired bricks, unfired bricks, fused bricks (fused cast bricks), refractory and heat-insulating bricks; according to the shape and size, it can be divided into standard bricks, ordinary bricks, special bricks, etc. Refractory bricks can be used as high-temperature building materials and structural materials for construction kilns and various thermal equipment, and can withstand various physical and chemical changes and mechanical actions at high temperatures. [0003] The safe ...

AI Technical Summary

Problems solved by technology

Although the refractory bricks made by using the above raw materials and processes have solved the defects of the existing clay heat-insulating refractory bricks, such as low load deformation temperature, easy shrinkage at high temperature, high thermal conductivity, and poor heat preservation effect, but its refractoriness, resistance Compared with foreign refractory bricks, there is still a big gap in thermal shock and corrosion resistance, which cannot meet the needs of the export market