Nano heat insulating blanket and production method thereof

Abstract

The invention relates to a nano heat insulating blanket; the blanket comprises the following components in percentage by weight: 15 to 35 percent of nano-silica powder, 20 to 55 percent of nano or micron powder additive, and the fiber is added to 100 percent; the main steps of the preparation method comprise powder material pre-mixing, mixing of powder material mixture and the fiber, forming, calcining, surface treatment and product finishing. The maximum fiber length adopted by the invention reaches 100mm, the prepared calcine is soft and bendable, has a folding function, facilitates engineering production, has performance that the traditional heat insulating product does not have, is widely applied in all aspects in high-temperature heat insulation, low-temperature heat insulation, cold keeping and other heat insulation and energy-saving fields, and has wide application prospect.

Description

technical field [0001] The invention belongs to the field of thermal insulation materials, in particular to a nanoscale thermal insulation blanket and a production method thereof. Background technique [0002] my country is a big energy-consuming country. The total amount of various energy consumed every year is equivalent to 1.5 billion tons of standard coal, of which about 40% is the energy consumption of industrial equipment. At present, in response to the national requirements for energy conservation and emission reduction, the State Council has formulated a series of laws and regulations related to high-energy-consumption production equipment, in order to reduce the energy consumption of industrial production. One of the main methods to reduce energy consumption is to install isolation The thermal insulation board insulates the production equipment to achieve the purpose of reducing the energy consumption of the equipment. [0003] Existing high-temperature thermal ins...

AI Technical Summary

Problems solved by technology

[0003] Existing high-temperature heat insulation boards generally use glass wool, rock wool and ceramic fibers (thermal conductivity λ≤0.15W / mK600℃, λ≤0.20W / mK 800℃) as heat insulation materials. The problem is: due to the large thermal conductivity of glass wool, rock wool, ceramic fiber and other materials, they cannot meet the requirements of higher thermal insulation performance. In order to achieve better thermal insulation effect, the thermal conductivity of existing thermal insulation materials is obviously too large , cannot meet the needs of production