Automated control system for removing magnetic foreign matters

Abstract

The invention provides an automated control system for removing magnetic foreign matters. The automated control system is used for removing the magnetic foreign matters from a liquid material conveyed from a feeding device and then conveying the removed liquid material into a material consuming device. The automated control system is characterized by comprising at least two magnetic foreign matter removing devices, at least two feed valves and a control device, wherein each magnetic foreign matter removing device comprises a shell body, a feeding unit, a magnetic baffle component and a discharging unit, the at least two feed valves are separately arranged on the feeding units of the magnetic foreign matter removing devices; the control device is connected with the feed valves and discharging valves and is used for controlling the feed valve and the discharging valve of at least one magnetic foreign matter removing device to be closed and controlling the feed valve and the discharging valve of another at least one magnetic foreign matter removing device to be opened when the adsorption of the magnetic baffle component in the at least one magnetic foreign matter removing device is saturated. According to the automated control system, production can be carried out successfully, the progress and efficiency of production are guaranteed, and the effect of removing the magnetic foreign matters is improved.

Description

technical field [0001] The invention relates to an automatic control system for removing magnetic foreign matter in liquid materials such as solution and slurry. Background technique [0002] With the development of new energy sources, battery materials have become a hot topic in research. In addition to the impact of particle size and density of battery materials on performance, the existence of magnetic foreign matter has brought great hidden dangers to the safety performance of lithium batteries. The control of foreign matter is the key to solve the safety problem of lithium-ion batteries. [0003] At present, the magnetic foreign matter of battery materials is generally controlled within 50ppb, while the positive electrode materials such as NCA used in Tesla require magnetic foreign matter to be controlled within 10ppb. However, at present, the removal of magnetic foreign matter from battery materials is generally only concerned with post-processing processes such as dr...

AI Technical Summary

Problems solved by technology

However, at present, the removal of magnetic foreign matter from battery materials generally only focuses on the post-treatment processes such as drying, screening and packaging, and the removal of magnetic foreign matter in the way of pollution and retreatment is poor in effect, large in material loss, and low in yield.

[0004] In order to improve the demagnetization effect, a permanent magnet iron remover is generally installed in the liquid delivery pipeline, but the existing permanent magnet iron remover consists of several staggered magnetic rods, the contact area is small, and there are still some flow blind areas in the device , these all affect the effect of demagnetization to varying degrees

The magnetic rod needs to be shut down when cleaning, take out the magnetic rod, reinstall it after washing, and then restart the work, which affects the production process and efficiency

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