When brick of the heat preservation that make, commonly used, convenient method is bleb law and combustion additive law. Can aeriform infuse pug in: 1. Use machine first in fluid of in suspension of infuse of methodological general air, reoccupy stabilizing agent makes the bleb in pug stable; 2. In adding foaming agent suspension juice, this reagent produces gas after interaction, gas makes slop produces poriferous construction, poriferous structure is stabilized with stabilizing agent after.
To save the bleb in slop, must reduce the exterior pulling force of suspension fluid, because this adds foaming agent normally. Add in slop a large number of can the blame plasticity material of imbibe, be like clinker or the crystallization that contain a large number of moisture content, can stabilize bubble. To make slop fleeciness, carbonic acid body and acid or aluminium, metal and other reagent are joined in suspension fluid, pass its chemical reaction generates bubble. To achieve this one goal, dolomite and vitriolic often use in abroad, the industrial raw material that thinks they are dog-cheap. Use gesso of half ability in swimming and material of other water rigid to serve as stabilizing agent. The slop of heat preservation brick is in caky hind rapid and dry with combustion. Flaming product passes machining, make its have wants form and measure.
Craft of brick of light qualitative heat preservation has a lot of kinds, common ground uses temperature. The bulk density of the product and appearance cent are two kinds. (1) presses bulk density classification. Bulk density is 0.4~1.3g/cm3 is light qualitative brick; .4g/cm exceeds light qualitative brick 3. (2) undertakes classified according to using temperature. ℃ of use temperature 600~900 900 pledge gently for microtherm brick; In ~120 ℃ lukewarm light qualitative brick; High temperature of more than 1200 ℃ pledges gently brick. The production methods of brick of light qualitative heat preservation is different from average compact data. The method has a lot of, basically include to add the method of stock. Bubble law. Chemical law, porous material standard. 1) adds the method of stock. Also call combustible to add a way. Easy flaming combustible is joined in the slop that makes a brick, be like charcoal pink. Curium wood chip, make the product has certain air hole after fire. 2) bubble law. Person foaming agent is added in the pug that makes a brick, the toilet soap that be like a pine, use mechanical method to make its bubbly, firing hind get poriferous product. 3) chemical law. In the process that make a brick, the chemical response that uses gas of can proper generation acquires poriferous product, normally use dolomite or square magnesian stone and gesso serve as vitriolic as foaming agent. Standard of 4) porous material. Use natural diatomite or grog of man-made clay bubble. Light qualitative firebrick by alumina or zirconia the porous raw material such as hollow ball is made. Use low thermal conductance. The brick of light qualitative heat preservation with small thermal capacity can save specific fuel consumption, raise equipment to manufacture efficiency, reduce furnace weight, simplify kiln structure, improve product quality, drop environmental temperature, improve working condition. Brick of light qualitative heat preservation basically uses as the heat-insulation layer of kiln furnace. Liner or heat-insulation layer.
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