The waste battery recycling and processing device particularly relates to the application of a rotary vane vacuum pump in the recycling and processing of waste batteries. If the waste batteries enter the environment without management, it will cause serious damage to the ecological environment. For example, when the soil, water and atmosphere are polluted by metal mercury or inorganic mercury, some Mercury will be transformed into organic mercury and enriched under the effect of microorganisms, animals and plants, and ultraviolet rays, thus causing damage to the environment and human beings. Therefore, the disposal of waste dry batteries has always been one of the focuses of attention.
The waste batteries contain mercury, cadmium, manganese, lead and other heavy metals. When the waste batteries are exposed to the sun and rain, the surface is corroded, and the heavy metals in them will penetrate into the soil and groundwater. If people eat the crops grown on the polluted land or drink the polluted water, these toxic heavy metals will enter the human body and gradually deposit, which will pose a great threat to human health. After the mercury in the waste battery overflows, if it enters the human brain cells, the human nervous system will be seriously damaged. Cadmium can damage the liver and kidney, and even deform bones. Some waste batteries also contain acid and heavy metal lead. If leaked into the nature, it can cause soil and water pollution, and finally cause harm to man-made.
Dry batteries are treated by rotary vacuum pump vacuum chlorination roasting glass solidification method, which is divided into crushing, magnetic separation, vacuum chlorination roasting, cooling, absorption, etc. in the process of crushing waste batteries, a lot of gases will be generated due to the heat inside the waste batteries. These gases will form the bursting of the battery, sometimes lead to explosion, damage the equipment and lead to severe consequences. Therefore, it is necessary to crush the battery before the vacuum chlorination roasting process.
Application of rotary vane vacuum pump in waste battery recycling
Rotary vacuum pump low-temperature roasting in the waste dry battery heating process, water, white wax, NH4Cl and other substances will be continuously evaporated, paper, paste and other organic matter can be ashing; with the continuous rise of temperature, the remaining element zinc in the battery begins to melt, which can be recycled for use.
Rotary vane vacuum pump chlorinated roasting waste dry battery is roasted at low temperature, during which moisture, organic matter, NH4Cl, etc. have been completely removed. Metal chloride has the characteristics of low melting point, good volatility, and easy to dissolve in water, which is convenient for recycling. Greatly save power and reduce the disposal cost of waste dry batteries.