In the current situation where energy is very scarce, saving energy is the most worthy of attention. The light-weight heat-resistant insulating castable has the characteristics of energy-saving and heat resistance. Lightweight thermal insulation castables have good thermal insulation performance due to their low volume density and low thermal conductivity. In addition, there are many types of light-weight heat-resistant heat-insulating castables, but light-weight heat-resistant castables are generally selected as the thermal insulation layer for industrial kiln construction. The reason is that the lightweight thermal insulation castables have low refractoriness, and the general use temperature is 600~900℃, which is more suitable for boiler construction below 1000℃.
Lightweight heat-resistant heat-insulating castable is one of the monolithic refractory materials. When preparing light-weight insulating castables, fire-resistant lightweight aggregates and powders are mainly selected, and then the corresponding binders and additives are selected. The properties of light castables and dense castables are basically the same. The only difference is that in the test of the softening temperature under load, the test load is 0.1MPa.
The most prominent features of Lightweight thermal insulation castables are heat preservation, heat resistance, and energy saving. The main reason is the low thermal conductivity of the Lightweight thermal insulation castable. Generally, in the kilns and thermal equipment of the metallurgical, chemical, electric power, and building materials industries, many light-weight thermal insulating castables are used, but they are only used for thermal insulation construction. However, there are also some lightweight refractory castables that can be used as working layers or load-bearing components, and they have achieved better results. In addition, only the parts that are in contact with a liquid metal or molten slag use an insulating board on the tundish, which has achieved good results.
Moreover, the price of lightweight thermal insulation castables is relatively cheap compared to other castables. The market price of light-weight insulation castables ranges from one thousand to two thousand yuan. Such a price, among refractories, is a relatively low monolithic refractory product. In addition, the boiler is constructed with light-weight thermal insulation castables. According to the properties of the castables, it can not only save the use of materials. When the boiler is running, it can also reduce the degree of boiler wear and temperature loss. These are the characteristics of lightweight thermal insulation castables. When customers choose lightweight castables, they need to choose reasonable castables according to their own boiler conditions, so that there will be no too many problems when the boiler is running.
Customer Feedback on Lightweight Thermal Insulation Castables
Lightweight insulation castable customer 1. The refractoriness of Rongsheng’s lightweight thermal insulation castables is similar to that of refractory bricks of the same material. However, since the castable is not sintered, it shrinks greatly when heated for the first time, so the load softening point is slightly lower than that of refractory bricks. Nevertheless, in general, the performance is better than refractory bricks.
Lightweight insulation castable customers 2. Light-weight thermal insulation castables are due to the effect of low-temperature cementing materials. High compressive strength at room temperature. At the same time, because the integrity of the masonry is good, the gas tightness of the furnace is good, and it is not easy to deform, and the outer furnace shell steel plate can be eliminated. The resistance of the furnace to mechanical vibration and shock is better than that of brick masonry. For example, it is used on the upper part of the sidewall of the soaking furnace, where the mechanical wear and collision are relatively severe, and the service life is several times longer than that of the brick.
Lightweight insulation castable customers 3. Lightweight thermal insulation castable has good thermal stability. Most of all of the aggregate are clinker, and the expansion is offset by the shrinkage of the cement, so the thermal expansion of the masonry is relatively smaller than that of the brick, and the temperature stress is also smaller. Moreover, there are various network, needle, and chain crystal phases in the structure, which have a strong resistance to temperature stress. For example, it is used for pouring soaking furnace mouth and furnace cover. The life span is extended to one and a half years.
Lightweight insulation castable customers 4. The production process is simple and the complicated brick-making process is eliminated. It can be made into various prefabricated blocks and can be constructed mechanized, which greatly accelerates the furnace building speed and increases the efficiency of bricklaying by more than ten times. Waste bricks can also be used as aggregates to turn waste into profit.
Rongsheng Lightweight Thermal Insulation Castable Sales
To purchase high-quality lightweight thermal insulation castables, you must choose to purchase directly from refractory manufacturers. Not only can the price difference between the middlemen be eliminated. And the product quality is more guaranteed. Rongsheng refractories manufacturers have advanced production and sales experience. Advanced automatic monolithic refractory materials production line with an annual output of 80,000 tons. Not only can we provide high-quality monolithic refractory products for turnkey projects. Moreover, we can customize refractory castable formulations and customize special monolithic refractory products according to customers’ production needs. Please contact us to purchase lightweight thermal insulation castables. We will provide you with services according to your specific needs.