Introduction

Coal gangue has low hardness and serious pollution to the environment, so when choosing and purchasing equipment, try to choose technical equipment, which is conducive to environmental protection. It is recommended to use Vanguard produced coal gangue grinder, coal gangue crusher, coal gangue grinder and other equipment, with environmental protection, energy-saving and efficient advantages. Vanguard coal gangue grinder is suitable for grinding coal gangue, barite, limestone, ceramics, slag and other non-flammable and explosive materials with Mohr hardness not more than 9.3, humidity in the following. The equipment is suitable for high and fine milling of various materials in mining, metallurgy, chemical, building materials and other industries, and the granularity of finished products is adjusted in the scope of the eye. The main structure of coal gangue mill consists of separator, grinding roller device, grinding disc device, pressure device, reducer, motor, shell and other parts. According to the position of humidifier tower and dust collector, there are two different layout schemes, namely three fan system and double fan system. The cyclone dust collector can reduce the negative pressure of the system and the amount of gas passing through the dust collector.
Coal gangue is mainly used to produce gangue cement, lightweight aggregates of concrete, refractory bricks and other building materials. In addition, it can also be used to recover coal, coal and gangue co-firing power generation, production of crystalline aluminum chloride, sodium silicate and other chemical products, as well as extraction of precious and rare metals, can also be used as fertilizer. Coal gangue can take the place of clay as raw materials for brick making. It can save coal by using the combustible materials of coal gangue when burning bricks. Gangue can partially or completely replace clay components to produce ordinary cement, and can be used for sintering lightweight aggregate. In addition, coal gangue can be used to produce low calorific value gas, make ceramics, make soil amendment, or for paving, underground filling, ground filling. After the spontaneous combustion, the waste rock can also be afforestation and beautify the environment.