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The disc continuous dryer is an efficient conductive continuous drying equipment. Its unique structure and working principle determine that it has the characteristics of high thermal efficiency, low energy consumption, small footprint, simple configuration, convenient operation and control, and good operating environment; it is widely used in new energy materials, chemicals, medicine, pesticides, food, Drying operations in feed, agricultural and sideline products processing and other industries.

The hot air is cut into the bottom of the dryer and driven by the agitator to form a strong rotating wind field. The paste material enters the dryer by the screw feeder. Under the strong action of the high-speed rotating stirring paddle, the material is dispersed under the action of impact, friction and shear force. The massive material is rapidly crushed, fully contacted with hot air, heated and dried. The dry material after dehydration rises with the hot air flow, the classification ring intercepts the large particles, and the small particles are discharged from the center of the ring out of the dryer and recovered by the cyclone separator and dust collector. The undried or large materials are thrown to the wall by centrifugal force and fall to the bottom again to be crushed and dried.

PLG series spray dryers are divided into open type and closed type. They are mainly used in the drying production of battery materials, positive and negative electrode materials and sodium ion materials. They adopt high-speed centrifugal spray atomization technology (linear speed can reach 250 m/s) in line with the most advanced international technology. While realizing continuous drying production, they can obtain micro-spherical particles with uniform particle size, compact structure and good fluidity. To a large extent, high-speed centrifugal atomization technology, it can effectively improve or increase the packing density of the positive electrode material lithium iron phosphate, so that the monomer particles can reach 3 ~ 5μm and the moisture content of the finished product is 0.5%. The magnetic filtration technology is applied to effectively avoid the incorporation of iron ion impurities in the production process, so as to achieve the purpose of material purity and maintain the conductivity of the positive electrode material. The recycling of waste heat gas can achieve the production purpose of energy saving and emission reduction, and conform to the energy saving and emission reduction and low-carbon production mode advocated by the state.

Roaster is a kind of equipment for high-temperature heating treatment of powdery or cake-like materials, also known as calciners. According to the different energy sources used, it can be divided into four types: coal-fired furnace, gas furnace, oil-fired furnace and electric heating furnace. According to the heating mode, it is divided into two categories: direct heating and indirect heating. According to the operation mode, it is divided into two forms: continuous operation and indirect operation. The roasting furnace is mainly used for activation, crystal conversion, oxidation, pyrolysis, reduction, halogenation, sulfation and other technological processes, and is widely used in the production process of special materials in petrochemical, inorganic chemical, metallurgical construction and other industries.

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