In modern industrial production, heat insulation of high-temperature equipment is the key link to ensure energy efficiency and safe operation of equipment. As a new type of high-temperature thermal insulation material, aluminum silicate fiber module is gradually becoming the preferred thermal insulation solution for many industries with its excellent performance and wide application fields.

I. Product Overview

Aluminum silicate fiber module is a kind of heat insulation material made of aluminum silicate fiber as the main raw material. It belongs to a kind of ceramic fiber products and has the characteristics of light weight, high strength and excellent heat insulation performance. Its main components are alumina (Al₂O₃) and silica (SiO₂), and this unique chemical composition gives it excellent high temperature resistance and chemical stability.

II. Product characteristics

(1) Low thermal conductivity and low thermal capacity

The thermal conductivity of aluminum silicate fiber module is very low, usually around 0.085 W/m·K (the specific value varies with density and temperature). This means that it can effectively prevent heat transfer and reduce heat loss, thus significantly reducing energy consumption. The low thermal capacity enables it to respond quickly when the temperature changes, reducing the thermal inertia of the equipment.

(2) High temperature stability and thermal shock resistance

The module can withstand the continuous working temperature up to 1350℃ (the specific temperature range varies with the product model), and still maintain structural integrity and thermal insulation performance under extreme temperature changes. This thermal shock resistance enables it to run stably in equipment with frequent start-up and stop or large temperature fluctuation, effectively prolonging the service life of the equipment.

(3) Excellent mechanical strength

Aluminum silicate fiber module has high mechanical strength and can withstand certain mechanical pressure and impact. Its density is generally between 190 and 240 kg/m, which can meet the installation and use requirements of most industrial equipment. At the same time, the shape and size of the module can be customized according to the needs of users, and the installation is convenient and fast, which further improves the construction efficiency.

(4) Chemical stability

Aluminum silicate fiber module has good chemical stability and can resist the corrosion of many chemicals, including acid, alkali and salt. This enables it to run stably for a long time in chemical industry, metallurgy and other industries, without worrying about the potential safety hazards caused by chemical corrosion.

III. Production Technology

The production process of aluminum silicate fiber module mainly includes fiber preparation, module molding and curing treatment. Firstly, aluminum silicate raw materials are made into fibers through a special process, and then the fibers are made into the prototype of the module through carding, stacking and other processes. Finally, through high temperature curing treatment, the module has stable structure and excellent performance. This production process not only ensures the quality of the product, but also can adjust the parameters such as density, thickness and shape of the module according to the needs of users.

IV. Application fields

(1) Metallurgical industry

In metallurgical industry, aluminum silicate fiber module is widely used in heating furnace, heat treatment furnace, ladle cover and other equipment for heat insulation. For example, using the module on the ladle cover can effectively reduce heat loss, improve the heat preservation effect of molten steel and reduce energy consumption. At the same time, the high-temperature stability and thermal shock resistance of the module can withstand the high-temperature impact of the ladle during pouring, and prolong the service life of the equipment.

(2) Petrochemical industry

In the petrochemical industry, the heat insulation of high-temperature reaction equipment and heating equipment is very important. The aluminum silicate fiber module can withstand the extreme temperature conditions in the high-temperature reaction furnace, and its good chemical stability makes it resistant to the corrosion of chemical media. For example, using this module in atmospheric and vacuum furnaces, cracking furnaces and other equipment can effectively reduce the heat loss of the equipment, improve the energy utilization efficiency and reduce the maintenance cost of the equipment.

(3) Ceramics and Glass Industry

In the process of ceramic and glass production, the thermal insulation of kiln is the key factor affecting product quality and production efficiency. The low thermal conductivity and high temperature stability of aluminum silicate fiber module make it an ideal furnace insulation material. It can be used for lining of roller kiln, tunnel kiln, shuttle kiln and other kilns, effectively reducing heat loss, improving the heating rate and temperature uniformity of the kiln, thus improving product quality and production efficiency.

(4) Environmental protection industry

In the field of environmental protection, such as garbage incinerator and RTO (regenerative thermal oxidation) waste gas treatment equipment, aluminum silicate fiber module also plays an important role. It can withstand the impact of high-temperature exhaust gas, and its good heat insulation performance can reduce the heat loss of equipment and improve the energy utilization efficiency. In addition, the chemical stability of the module enables it to resist corrosive components in waste gas and prolong the service life of the equipment.

V. Installation and maintenance

(1) Installation

The installation of aluminum silicate fiber module is relatively simple. First of all, it needs to be positioned and fixed according to the design requirements of the equipment and the size of the module. Usually, the modules can be fixed on the steel shell of the equipment through anchors. During installation, it is necessary to pay attention to the tight splicing between modules to avoid heat leakage caused by cracks. After installation, the module needs to be properly compressed to ensure that it can maintain good thermal insulation performance at high temperature.

(2) Maintenance

Aluminum silicate fiber module generally does not need frequent maintenance during normal use. However, due to its long-term exposure to high temperature, it may be polluted by dust and impurities, which will affect its thermal insulation performance. Therefore, it is suggested that the surface of the module should be cleaned regularly to maintain its good heat insulation effect. At the same time, if the module is found to be damaged or deformed, it should be replaced in time to avoid equipment damage caused by heat leakage.

VI. Market Prospect and Development Trend

With the increasing global energy demand and the increasingly stringent environmental protection requirements, the demand for thermal insulation of high-temperature equipment is also increasing. As an efficient, energy-saving and environment-friendly heat insulation material, aluminum silicate fiber module has a broad market prospect. In the future, with the continuous improvement of production technology and the further improvement of product performance, aluminum silicate fiber modules will be applied in more fields and make greater contributions to industrial energy saving and sustainable development.

VII. Summary

Aluminum silicate fiber module is becoming an indispensable thermal insulation material in the field of high temperature industry because of its excellent thermal insulation performance, high temperature stability and chemical stability. It can not only effectively reduce the heat loss of equipment, improve the energy utilization efficiency, but also prolong the service life of equipment and reduce the maintenance cost. With the continuous progress of technology and the continuous expansion of market demand, aluminum silicate fiber module will play a more important role in the future industrial development.