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Nitrogen circulating flash dryer nitrogen under the protection of extremely low oxygen conditions, product quality is good, to avoid the risk of oxidation, decomposition, combustion and explosion. It is suitable for the drying of inflammable, explosive and toxic cake-like, paste-like and slurry-like materials containing organic solvents and the recovery of organic solvents.


The nitrogen closed-circuit spray dryer consists of a centrifugal spray dryer main machine, a heater with an air filter, a blower, a gas-liquid separator, a large and small condenser, a spray tower, an exhaust fan, a primary cyclone separator, a secondary cyclone separator, a pump, an oxygen detector, pipelines and control valves, etc. As a special equipment for drying organic solvent slurry, the nitrogen closed-circuit spray dryer is dried by nitrogen..


Nitrogen circulating disc dryer is the optimization and upgrading of traditional explosion-proof disc drying technology. It can solve the problems of organic solvent recovery, easy oxidation and drying of toxic materials. It is suitable for free-flowing, non-adhesive, extremely fine powder (below 100 mesh) and granular materials with wide particle size distribution, drying of materials containing organic solvents and recovery of organic solvents.


Yongbang developed a new type of closed-loop rake dryer combined with the advantages of various existing dryers to develop a new type of dryer, which has a wide range of process applicability and solves new problems raised by modern production processes. The new equipment is aimed at the needs of powder drying process in the field of chemical industry and feed, and provides a compound heat transfer drying equipment with high efficiency, wide application range of powder and high drying effect.


The closed cycle paddle dryer uses inert gas to circulate during the drying process to prevent combustion and explosion during the drying process. The whole drying process is dried in a closed environment under the protection of nitrogen, which has the characteristics of no dust and high safety.


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.


The special double-cone rotary vacuum drying host for battery materials is a double-cone tank body. Under the vacuum state inside the tank, steam or heat transfer oil can be introduced into the jacket to heat the inner container. The heat is transferred to the wet material through the inner container, so that the water in the wet material is gasified. The low-speed motor drives the tank body to rotate. The material keeps going up and down, turning inside and outside, and replacing the heating surface. At the same time, the water vapor is continuously pumped away through the vacuum exhaust pipe of the vacuum pump, which speeds up the drying speed of the material and finally achieves the purpose of uniform drying.


The material enters the bed through the feed inlet, and jumps forward on the air distribution plate under the action of the exciting force provided by the vibration motor or other means. At the same time, the air is heated to a certain temperature after being filtered, and enters the downwind chamber of the dryer through the tuyere. The material is under the dual action of the vibration force and the hot air flow through the air distribution plate, in the suspended state, there is intense turbulence between the material particles and the heat medium in contact with the hot air flow, which strengthens the heat and mass transfer process. The dried product is discharged from the discharge port, and the evaporated water and waste gas are discharged into the atmosphere after dust is recovered by the cyclone separator.


ZPG series battery material horizontal stirring vacuum dryer is the use of water in the material in the vacuum state to reduce the boiling point of the characteristics of the equipment for drying. The equipment uses steam (hot water, heat conduction oil) to heat the jacket indirectly, and the water is evaporated and pumped out in time. Inside the dryer shell, the rake tooth is driven by the transmission shaft, and the rake tooth end is designed to have a certain angle with the axis. The main shaft rotates forward and backward to move the material along the axial direction to facilitate drying and discharging. Two or four percussion rods can be added inside the shell to facilitate the rapid drying and crushing of the material. The percussion rod is a hollow thick-walled stainless steel tube with the same length as the shell, which moves freely inside the shell. The percussion rod continuously knocks the material inside, so that the material is continuously broken (the material obtains a larger specific surface area) to accelerate the drying process, and the quality of the finished material is better.

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