Magnetic Bar Grille Type Iron Remover - Industry Application Cases 3

A ceramic raw material processing plant mainly produces ceramic body raw materials such as kaolin and quartz sand. As the core raw material for ceramic production, the purity and whiteness of kaolin directly determine the appearance quality of ceramic products (such as glaze smoothness and color whiteness). During the mining, crushing and grinding of kaolin, ferromagnetic impurities such as iron filings generated by the wear of mining equipment (excavators, crushers) and ferromagnetic mineral particles entrained in the ore will be mixed in. These impurities will cause defects such as black spots and pinholes in the ceramic body after firing, reducing the grade of ceramic products.

The processing plant installed a large-scale magnetic bar grille type iron remover at the outlet of the storage tank after kaolin slurry grinding. According to the characteristics of kaolin slurry (concentration 60%, particle size 800 mesh), a multi-row magnetic bar structure was customized with a magnetic bar spacing of 2 mm and a magnetic field strength of up to 15,000 Gs, which can efficiently adsorb micron-level and even sub-micron-level ferromagnetic impurities in the slurry. The equipment adopts a modular design, and the magnetic bars can be disassembled individually for convenient daily cleaning and maintenance. At the same time, it is equipped with a slurry diversion device to ensure that there are no dead ends when the slurry flows through the grille, making iron removal more thorough. After treatment by the equipment, the iron impurity content in the kaolin slurry has decreased from 120 ppm to below 8 ppm, and the whiteness has increased by 5 percentage points. After subsequent firing of ceramic products, the defect rate of black spots, pinholes and other defects has decreased from 15% to below 1%, and the first-grade product rate has increased from 70% to 92%, which has significantly improved the market competitiveness of products.