Lignite is the mineral coal with the lowest degree of coalification, a brown-black, matt low-grade coal between peat and bituminous coal. Because it is rich in volatile matter, it is easy to burn and smoke. Lignite is not easy to store and transport, and must be processed by the drying process of the lignite dryer. In the process of drying lignite, how can the uniform heating of the material be ensured?

  The lignite dryer needs to reach a high temperature in the cylinder when drying the material, but the temperature must be uniform enough to ensure that the lignite is effectively dried. Zhengzhou Jiutian has rich experience. Regarding the uniform heating of the dryer fuel, we have analyzed and summarized three main points:

  1. The combustion furnace guarantees sufficient heat source. the temperature of the lignite dryer comes from the heat energy released by the combustion of the relevant fuel in the combustion furnace. It is necessary to ensure the full combustion of the fuel and the heat preservation performance of the furnace body to prevent heat loss. Automation can be adopted. Adding fuel to the device can not only effectively avoid heat loss due to opening and closing the furnace door back and forth, but also effectively save manpower.

  2. The speed of the fan should be adjusted uniformly. the fan blows the hot air flow during the drying operation to ensure heat replacement when contacting the material. The fan controls the air volume. If the air volume is too large, it will take away a large amount of air. The heat cannot be effectively dried, and fuel is wasted at the same time. If it is too small, the drying will not be complete. Generally, a frequency conversion motor is used, which can not only adjust the air volume according to the drying degree, but also can save energy.

  3. Ensure that the drying cylinder is unblocked. The heat exchange between the material and the hot air flow mainly occurs in the barrel. If the barrel is blocked, the hot air flow will not flow well, which will not only fail to dry effectively, but will also cause local temperatures to be too high, leading to potential safety hazards.

  Only if the uniform heating of the lignite dryer material is ensured, the stability of the production efficiency can be ensured. Zhengzhou Jiutian is a dryer manufacturer integrating scientific research, production and sales. It can provide users with a complete range of lignite dryer equipment with superior performance and reasonable price. If you are interested in purchasing a lignite dryer, please feel free to contact us.