Acid resistant castable is one of the amorphous materials. Like other amorphous refractories, acid resistant castable can be directly used in the project without firing.
Acid resistant castables are not only highly plastic, but among many amorphous materials, the production process of acid resistant castables is relatively simple, and they can be produced by assembly line without special equipment. Moreover, they are highly mechanized and easy to ensure the unified standard of quality. It can be directly used in the project without special treatment, and the construction is simple. However, it should be noted that the impermeability of acid resistant castables is slightly poor. Before use, a layer of waterproof primer should be laid first, and then the construction of acid resistant castables should be carried out.
Acid resistant castables are widely used in metallurgical industry, petroleum, chemical industry, building materials, electric power and machinery industry and other industrial furnaces. Compared with other amorphous castables, acid resistant castables have better fluidity, convenient construction and are easier to achieve ideal construction results. Good high temperature resistance makes acid resistant castable outstanding in fire protection.
The acid resistant castable has good corrosion resistance to all inorganic acids and organic acids except hydrofluoric acid and hot phosphoric acid. It is mainly used as anti-corrosion lining, and the higher service temperature is about 1200 ℃. Acid resistant castable can be used flexibly. In addition to being used as unshaped refractory, it can also produce various irregular prefabricated parts for use. Reasonable use can give play to greater performance of acid resistant castable.
Advantages
- Save energy. Since the firing process with high energy consumption is exempted, only forming, drying and baking are required, and the energy consumption is 5-6% of the fired refractory bricks. High production efficiency.
- The production process of refractory castable is simple, and its production efficiency is 4 to 9 times that of refractory bricks.
- High construction efficiency. The construction efficiency of unshaped refractory is 6 to 15 times that of brickwork. It can be shaped at will. The utility model can be used to manufacture the overall special-shaped furnace lining, and can also be used to quickly repair the kiln, so as to improve its service life and operation rate.
- Suitable for various high-temperature projects. Using special good materials, masonry materials with good heat resistance, earthquake resistance, corrosion resistance of harmful gases and slag, anti stripping and heat insulation can be prepared.
Precautions
During the use of acid resistant castables, attention should be paid not to use them in a short period of time and in an environment with large temperature difference, nor to construct them in a humid environment. In addition, acid resistant castables should not be constructed under high temperature, which will damage their performance and reduce their strength. Therefore, attention should be paid to these issues during the use process to strive to give play to the relatively large characteristics of acid resistant castables.