Ternary battery cathode material sintering atmosphere kiln exhaust and voltage stabilization system

Abstract

The invention relates to the technical field of battery material sintering, and discloses a ternary battery positive electrode material sintering atmosphere kiln exhaust and voltage stabilization system, including an exhaust device, an automatic flue gas adjustment device, and a flue gas extraction device connected in sequence, and the exhaust device Connected to the kiln, the kiln is also connected with a pressure detection device, the pressure detection device is connected to the signal of the automatic flue gas adjustment device, the pressure detection device monitors the kiln pressure in real time and provides guidance for the flue gas overflow to the automatic flue gas adjustment device, The flue gas extraction device includes an exhaust fan and a first pressure detector for detecting the pressure of the flue gas discharged through the automatic flue gas adjustment device. The first pressure detector is arranged between the exhaust fan and the automatic flue gas adjustment device. The first pressure The detector is connected to the exhaust fan signal. The closed-loop control of exhaust and voltage stabilization is realized. By monitoring the kiln pressure and feeding it back to the automatic flue gas adjustment device, the flue gas extraction device senses the flue gas pressure, and the exhaust fan adjusts the suction power to ensure a favorable atmosphere for the kiln.

Description

technical field [0001] The invention relates to the technical field of battery material sintering, in particular to an exhaust gas and voltage stabilizing system for a ternary battery cathode material sintering atmosphere kiln. Background technique [0002] As a new generation of new energy materials, lithium-ion cathode materials have entered the stage of large-scale practical use. With the acceleration of industrialization, the demand for new energy in various industries and fields is also increasing. [0003] The sintering process of lithium-ion ternary battery cathode materials is a process that consumes a lot of oxygen and generates a lot of waste gas. The fluctuation of the ventilation rate of the atmosphere kiln and the large amount of gas generated at the beginning of sintering will lead to unstable pressure in the atmosphere kiln. If the kiln pressure decreases, the exhaust gas in the furnace will be discharged too quickly, which will not only reduce the oxygen part...

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Problems solved by technology

[0003] The sintering process of lithium-ion ternary battery cathode materials is a process that consumes a lot of oxygen and generates a lot of waste gas. The fluctuation of the ventilation rate of the atmosphere kiln and the large amount of gas generated in the initial stage of sintering will cause the pressure in the atmosphere kiln to be unstable.

If the kiln pressure decreases, the exhaust gas in the furnace will be discharged too quickly, which will not only reduce the oxygen partial pressure of the kiln, but also cause changes in the temperature field of the kiln, which is not conducive to the formation and growth of grains; if the kiln pressure increases If it is too large, the exhaust gas in the furnace will be discharged too slowly, which will cause the exhaust gas in the furnace to be discharged in time, and will eventually affect the material properties.

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