In the process of industrial production and waste gas and wastewater treatment, the waste activated carbon that has been used to achieve adsorption saturation and lose its efficacy can be reused through regeneration to achieve the purpose of resource disposal.

1. Working principle of the calcined carbide slag system At a temperature of about 950°C, calcium hydroxide is decomposed into calcium oxide.

The magnesium carbonate produced by the chemical method is decomposed into magnesium oxide after calcination. One of the calcining furnaces currently used is a shaft kiln and the other is a rotary kiln. The production of magnesium oxide by the above method, especially the production of magnesium oxide by the shaft kiln method, not only wastes energy, but also causes environmental pollution, and the product quality is unstable. The dynamic calciner is used to calcine magnesia, and the indicators of the formed products at all levels are obviously better than those of the traditional method.

The white carbon black is a white powder porous substance, and its composition can be expressed as SiO2 • nH2O. The drying is the important operation step in white carbon black production. The wet white carbon black contains much water, but the final water content in the product is required to be low. The wet white carbon black is inconvenient to convey, and the drying is difficult because the product is of light weight and small particle size. Our company started to supply white carbon black drying system equipment for tens of white carbon black manufacturers in China since the 90s in last century, so we has rich engineering experience.

It is a gradually matured process technology to calcinate aluminum hydroxide into aluminum oxide via dynamic calciner. It has been applied in the large-scale aluminum industry companies in China, and it is replacing the traditional rotary kiln calcination method.