Drying method of inorganic fireproof insulation plates in buildings

Abstract

The invention provides a drying method of inorganic fireproof insulation plates. The method includes the steps of n times of microwave heating and m times of cooling. The microwave heating and / or cooling steps can be alternate or performed continuously step by step. Primary microwave heating takes not more than 2 minutes. The letter n is one of 1, 2, 3, 4, 5, 6 or 7, the letter m is one of 1, 2, 3, 4, 5, 6 or 7, and the values of n and m are mutually independent. The efficient, environment-friendly and energy-saving drying method is applied for high water content light aggregates in the industrial production process of buildings. The drying method is widely applicable to industrial production of building energy-saving products using light aggregates of inorganic materials such as perlite, expanded and vitrified balls, ceramic microbeads and vermiculite particles.

Description

technical field [0001] The invention relates to an inorganic fire-proof and heat-insulating board used in the field of building energy conservation, in particular to a drying method in the required production process. Background technique [0002] At present, the domestic application of inorganic lightweight materials such as expanded vitrified beads and perlite mostly stays in the factory for mixing and stirring, and the semi-finished mortar is transported to the construction site for mixing and then painted on the wall. This method is technically speaking. The controllability is too poor, because the quality of the construction personnel on the construction site is uneven, the quality of the base layer of the wall is different, and there are also reasons such as climate, temperature, humidity, etc., resulting in the good formula materials in the factory laboratory becoming unqualified products on the construction site , which has seriously affected the development of my coun...

AI Technical Summary

Problems solved by technology

However, the characteristics of inorganic lightweight materials such as expanded vitrified microbeads are fast water inflow and slow water outflow, which have the same characteristics as sponges. However, if cement products are greatly heated during the hydration reaction (over 80 degrees Celsius after testing), their strength will decrease. It will be greatly reduced, and even the surface will be pulverized, so the drying temperature of cement products can only be adjusted below 80 degrees Celsius

In addition, another characteristic of inorganic lightweight materials such as expanded vitrified microbeads and perlite is excellent thermal insulation performance, which also makes it difficult for the heat generated by traditional heating methods to penetrate the thermal insulation layer formed by inorganic lightweight materials. During the drying process, there will be a high initial efficiency, but the drying efficiency will be greatly reduced after the surface of the material is cured, even lower than the natural drying efficiency in a well-ventilated environment. obstacle

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