Preparation method and product of thermal insulation material for industrial thermal equipment and boiler

Abstract

The invention relates to a preparation method and a product of an insulation material used for industrial thermal equipment and boiler, which provides the preparation method and the product of the insulation material with advantages of good thermal insulation performance, low heat conduction coefficient, low production cost, little energy consumption, long product usage life, environmental protection and hurtlessness used for industrial thermal equipment and boiler. The preparation method comprises the following steps: adding urea CO(NH2)2 or ammonium hydroxide in an aluminum ion salt solution, performing a chemical reaction to obtain nano aluminium hydroxide gel; adding titanium dioxide with 2500 meshes in the nano aluminium hydroxide gel, according to the nano aluminium hydroxide gel with weight part of 79-96 parts, adding 6-21 parts of titanium dioxide, adding 10-20 parts of deionized water to obtain the nano aluminium hydroxide porous gel mixed with titanium dioxide; under 140-150 DEG C, and employing microwave heating for dehydrating to obtain the porous gamma-alumina wrapped titanium dioxide insulation material.

Description

technical field [0001] The invention relates to a preparation method and product of thermal insulation materials for industrial thermal equipment and boilers. Background technique [0002] China is a country with a relative shortage of energy, but the energy consumption per unit of GDP output value is 4-6 times higher than that of developed countries. In the industrial field, the insulation of the furnace body is a problem that needs to be faced from time to time. No matter it is an industrial kiln, boiler, etc., all of them do not need insulation treatment. However, the insulation materials currently used are either high in thermal conductivity and poor in insulation effect. The most commonly used materials are asbestos, rock wool, glass fiber, and aluminum silicate fiber, which not only have poor thermal insulation performance, but also belong to Class I and Class II carcinogens. If all materials that are harmless to the human body are used in the furnace body insulation ...

AI Technical Summary

Problems solved by technology

In the industrial field, the insulation of the furnace body is a problem that needs to be faced from time to time. No matter it is an industrial kiln, boiler, etc., all of them do not need insulation treatment. However, the insulation materials currently used are either high in thermal conductivity and poor in insulation effect. materials, or materials that are harmful to the human body, the most commonly used asbestos, rock wool, glass fiber, aluminum silicate fiber, not only have poor thermal insulation performance, but also belong to the first and second types of carcinogens