How to effectively reduce thermal energy loss in gypsum rotary kilns?

How to effectively reduce thermal energy loss in gypsum rotary kilns?

As the name suggests, the gypsum rotary kiln is known to be the main equipment for calcining gypsum. This equipment is an industrial equipment for preliminary extraction of gypsum ore, and it will also increase the production of gypsum ore. The gypsum produced is mainly used for cement regulation, construction engineering, and other fields, so it has significant utilization value. Therefore, it is necessary to reduce the thermal energy consumption of the entire gypsum rotary kiln to improve the production and quality of calcination. So, what methods can reduce the thermal energy loss of the entire kiln body?

1、 Spray using insulation materials. Spraying gypsum rotary kiln is a direct method, and the insulation material is generally in the form of fine powder. After adding water, it becomes a slurry. Therefore, lightweight hollow microbeads are used to make this material, so its insulation effect is better. In addition, some crack resistant fiber short cut wires are added during spraying, and then sprayed with a spray gun, which is fast and convenient.

Secondly, use insulation materials for insulation. Silicon board material can be used for insulation inside the gypsum rotary kiln. Silicon board is a new type of material with lightweight, insulation, and fire-resistant properties, made by foaming calcium and silicon materials. Moreover, it can withstand the continuous high temperature inside the kiln. Building a layer between the refractory bricks and the steel plates of the kiln can effectively reduce the loss of heat energy.

Thirdly, choose high-quality fuel. When selecting combustion coal materials, it is necessary to choose coal materials with good quality, good thermal energy utilization, and less loss. At the same time, it is also necessary to ensure that the moisture content and particle size of the coal materials meet the process requirements of the gypsum rotary kiln.

Fourthly, accurate and appropriate feeding is necessary. When the coal feeding amount is inaccurate, it is mainly due to the inflexibility of the coal feeding system adjustment, or the error of the operators who cannot reduce the feeding amount appropriately according to the temperature changes in the kiln, resulting in the loss of heat energy without complete combustion. Therefore, when using this rotary kiln equipment, it is necessary to control the amount of coal feeding, seal all parts well, strengthen management, and ensure that there is no air leakage in the entire kiln body.