How to Solve Problem of Coal Spontaneous Combustion

Galvanized Lipp Silo

Choose galvanized plate can effectively prevent the coal silo wall corrosion. For other parts of the inner wall of the silo, such as stiffener need to brush paint for anti-corrosion and regular inspection.

Problem of Coal Spontaneous Combustion

Due to the special nature of coal, it is very prone to spontaneous combustion, the following measures can be used to prevent.

• Adding insulation layer outside the silo wall. In northern China, the winter is very cold, the insulation layer out of the silo wall can prevent the coal from freezing and agglomeration. Also can prevent steel silo in the southern region because of the high temperature out side the silo caused coal in the silo heating up too fast caused spontaneous combustion of coal. Heat insulating material usually use rock wool attached with color steel plate outside.
• Steel silo has complete ventilation system. To prevent coal spontaneous combustion, must reduce the temperature inside the silo, so the construction of ventilation system is the necessary condition of the silo. At the bottom of the steel silo set the ventilator, through the Ventilating duct leading-in the outside dry cold air to the ventilation geosyncline vent pipe, using the diffusion of gas continuous heat exchange with coal in silo, timely discharge the hot gas in silo to achieve the purpose of reducing the temperature. The roof of Lipp Silo all installation explosion proof vent, AQZZ series steel silo pressure release device, can achieve some ventilation explosion-proof effect.
• Using temperature measuring cable to detect the temperature of coal in silo. When the temperature reaches the set value, the alarm signal is sent out.
• Enter the inert gas in the silo to prevent coal spontaneous combustion or dust explosion.

Through the above method, we can effectively control the problems that may occur when carrying coal in Lipp Silo, and improve the utilization rate, make it possible to store coal in Lipp silo.