1. Material characteristics:

The ternary precursor material is nickel salt, cobalt salt and manganese salt as raw materials, and the proportion of nickel, cobalt and manganese in it can be adjusted according to actual needs. Ternary material and precursor is loose powder, but the fluidity is not good, according to the different production process, ratio and particle size, the water content before drying is generally about 10%~20%, the water content of the product after drying is about 0.2%.

2. Special drying process:

Ternary materials and precursors, spherical nickel hydroxide (spherical nickel) drying has the following characteristics and requirements: loose materials, but the fluidity is not bad; It requires low energy consumption, uniform heating of materials, good operating environment, and one-time to meet the requirements of indicators; The requirements for adding magnetic substances in the drying process are stricter (generally < 30ppb); The material is fine, difficult to collect dust.

The traditional hot air drying and the emerging microwave drying and far infrared drying have their own shortcomings rather than the ideal choice of terpolymer materials and precursors, spherical nickel hydroxide (spherical nickel) drying, such as hot air drying has high energy consumption (thermal efficiency only 30%-40%), poor operating environment (large dust) and other shortcomings, Microwave drying has the disadvantages of large equipment investment, uneven drying of materials and difficult to meet the requirements of the index, the heating process will occur "hot spot" and "thermal control" phenomenon, components easy to damage, far infrared drying has complex structure heat is not easy to uniform, high energy consumption.

Based on material analysis and years of engineering experience, the energy-saving and environmental protection continuous disk dryer has been successfully used as a terpolymer material and precursor drying equipment, and has provided drying system solutions for many manufacturers of this material. The precursor wet material of the ternary material transported from the previous process is continuously and quantitatively added into the energy-saving and environmental protection type continuous disk dryer by the quantitative feeder for drying operation. The heat and mass transfer process of the material is completed in the flow process to achieve the purpose of drying. After drying materials are cooled in the dryer to reach the packaging temperature (generally at 50℃), they are discharged from the discharge port at the bottom into the packaging equipment for packaging. The tail gas escaping from the materials is discharged from the moisture discharge port at the top of the dryer after dust removal.

3. Process characteristics:

(1)Continuous operation, high thermal efficiency. Due to the energy saving and environmental protection disc continuous dryer for conduction heat transfer drying, drying process dryer is blocked into the air (or into a very small amount of air), its tail gas carrying little, so its thermal efficiency can reach more than 85%;

(2)Less material loss, good operating environment. In the energy saving and environmental protection disc continuous dryer, the precursor of three materials drying, due to the material upward and downward, the material distribution is wet and dry, and the flow rate of drying tail gas is very low (about 0.1m/s), so the material dust is difficult to float to the top of the equipment, rarely by the exhaust gas enbelt discharge, not only do not lose materials, and will not pollute the environment, to meet the requirements of environmental protection; The whole drying system is closed, and the tail gas is specially designed dust collector, which can recover more than 99.9% dust.

(3)The equipment is highly adjustable, and the material is evenly dried and adjustable. By adjusting the equipment speed, adjusting the thickness of the material layer, heat source flow, heat source temperature, the number of rake arm, rake leaf form, size and Angle, the amount of material added and the drying disc in the dryer, can easily adjust the drying effect of materials;

(4) Stable operation, long service life, simple operation;

(5) Single material flow direction, no backmixing phenomenon, uniform drying, stable quality, no need to remix;

(6)The use of special materials, to ensure that the product of magnetic material requirements. For the worn parts (such as the inside of the feeder, the rake leaf and drying disc of the disc drying machine) using non-metallic materials or lining non-metallic materials or using other metal materials without magnetic materials, to ensure the requirements of the product on magnetic materials;

(7)Each layer of drying disc can be separately into the hot medium or cold medium, heating or cooling of the material, can also be realized in a equipment upper drying lower cooling, material temperature control accurate and easy;

(8)The heat source is flexible. According to the use of on-site heat supply, steam or heat conduction oil (electric heating or natural gas heating or coal heating or gas heating) as the heat source;

()9 For small particles in wet materials, a special crushing device is used in the proper position inside the dryer so that the small particles can be crushed into powder form, which can enhance the heat transfer and drying process and ensure the uniformity of drying materials.

(10)Easy to install and small footprint. Dryer overall factory, overall transportation, just lifting in place, installation positioning is very easy; Because of the drying disc layer layout, vertical installation, not only the drying area is large, the floor area is small.