Calcium silicate board material production methods which
Secondary reaction method (also known as joint method) is the most complete hydration reaction, the most easy to get high temperature, light high strength calcium silicate products, calcium silicate board production process, but its shortcomings process long, energy consumption, investment Big.
The synthesis of the dynamic process is carried out under stirring, the synthesis temperature is higher than the static process, and under pressure conditions. Dynamic process is simple, no gelation process, the product capacity is small, the performance is better, can be high temperature (1000 degrees Celsius) of the xonotlite products and ultra-light products, but need to bring the device with high pressure vessel , Equipment and process conditions require a higher energy consumption and investment are higher. At present, foreign countries use this method.
Calcium silicate (microporous calcium silicate) materials, calcium silicate board production methods are static autoclave, dynamic hydrothermal synthesis and secondary reaction method.
At present, most of the domestic production of static technology, raw materials and auxiliary materials will be a certain proportion of ingredients, adding the right amount of water, stirring conditions heated to a certain temperature for gelation, and then by molding, autoclaved curing, drying the existing calcium silicate board Insulation materials products. Static method used diatomite for siliceous materials, calcareous materials and more lime. The process is simple and low cost, but in the production requires large capacity autoclave, and the reaction is not complete, the main form of tourbillate to calcium carbonate board, the use of low temperature (<650 degrees Celsius), it is difficult to produce light, Light high strength products.
