Preparation technology of multi-layer glass wool and production equipment for implementing preparation technology

Abstract

The invention relates to the technical field of cryogenic thermal insulation, in particular to a preparation technology of multi-layer glass wool and production equipment for implementing the preparation technology. The preparation technology of the multi-layer glass wool comprises the steps of raw material melting, drawing and distributing, ignition and wool spraying, wool collection and glue spraying, forming, drying and rolling up, specifically, raw materials are melted in a kiln, wool collection and glue spraying are performed in a wool collection machine after drawing and distributing as well as ignition and wool spraying, forming and drying are performed in a drying oven, rolling up is performed finally, and the ultrathin multi-layer glass wool with high thickness is obtained. For the ultrathin multi-layer glass wool with high thickness, the thickness is 20-30 mm, the water content is lower than 0.5%, the gram weight is 360-440 g / m<2>, and the applicable temperature ranges from subzero 268 DEG C to 232 DEG C. Therefore, the preparation technology of the multi-layer glass wool is reasonable in process and novel, and the produced ultrathin multi-layer glass wool with high thickness is loose in texture and can be applied to the field of cryogenic thermal insulation and play an important role.

Description

technical field [0001] The invention relates to the technical field of cryogenic insulation, in particular to a preparation process of multi-layer glass fiber cotton and production equipment thereof. Background technique [0002] The tensile strength of glass fiber is very high, which can reach 6.9g / d under standard conditions and 5.8g / d under wet conditions. Such excellent properties make glass fibers often used as reinforcing materials. It has a density of 2.54. Glass fiber is also very heat-resistant, and it can still maintain normal properties at 300°C. Fiberglass is also sometimes widely used as a heat insulator and shielding material, thanks to its electrical insulating properties and its inability to corrode easily. [0003] Glass fiber wool is an inorganic non-metallic material with excellent performance. It has various types, good insulation, strong heat resistance, good corrosion resistance and high mechanical strength. High-thickness ultra-fine multi-layer glas...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation process of multi-layer glass fiber cotton and its production equipment, which solves the technical problem that there is a technical gap in the production of high-thickness ultra-fine multi-layer glass fiber cotton used in the field of cryogenic insulation in the prior art

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