I. Why Choose JC Electromagnetic Iron Remover for Lithium Iron Phosphate Purification?
As a core cathode material for lithium batteries, the purity of lithium iron phosphate (LFP) directly determines the battery's cycle life, rate performance, and safety stability. During the production process, ferromagnetic impurities are easily introduced—such as pipeline wear during the transportation of raw materials (e.g., lithium dihydrogen phosphate, iron oxide) and metal debris from equipment during mixing and grinding. These impurities can cause internal micro-short circuits in the battery, reduce charge-discharge efficiency, and even trigger thermal runaway risks. Therefore, the purification process requires precise removal of micron-level iron impurities (typically requiring an iron content ≤ 5ppm).
The JC Electromagnetic Iron Remover is customized for the characteristics of lithium iron phosphate: First, through a composite magnetic circuit design of "electromagnetic coil + carbon steel cabinet + magnetic conductive medium", it can generate a high-gradient magnetic field of 3500-45000 Gauss, which can adsorb fine ferromagnetic impurities as small as 0.01mm in particle size, meeting the strict requirements for low iron content in lithium iron phosphate. Second, the equipment is compatible with the dry powder/slurry forms of lithium iron phosphate in production, and can be seamlessly integrated into key processes such as raw material pretreatment, mixing, and post-drying, avoiding secondary contamination by impurities. Third, it complies with the cleanliness standards for new energy material production—the parts in contact with materials are made of 304 stainless steel, preventing dust residue and material contamination, and ensuring the chemical purity of lithium iron phosphate.
II. Improved Effects After Application
Before introducing the JC Electromagnetic Iron Remover, a lithium iron phosphate production enterprise had a batch unqualified rate of 7.2% due to excessive iron impurities. Additionally, traditional iron removal equipment required manual cleaning every 2 hours, which was time-consuming and labor-intensive, and prone to causing production interruptions. After applying the JC Electromagnetic Iron Remover, three core improvements were achieved:
- Product Quality Enhancement: The iron content of lithium iron phosphate is stably controlled within 3ppm, and the batch unqualified rate has dropped to below 0.8%. The products have successfully passed the qualification testing of downstream battery manufacturers, with the order delivery rate increased by 15%.
- Production Efficiency Optimization: The automatic iron removal and slag discharge functions replace manual operations, saving approximately 800 yuan in labor costs per day for a single production line. The equipment operates continuously with no failure time exceeding 3000 hours, and the shutdown maintenance rate has decreased by 80%.
- Cost Loss Reduction: It reduces the amount of raw material scrapping caused by impurities, saving approximately 23,000 yuan in monthly lithium iron phosphate raw material loss costs. At the same time, it avoids wear and tear of subsequent sintering furnaces and forming machines caused by impurities, extending the service life of equipment by 2-3 years.
III. Advantages and Features
(1) High Compatibility in Iron Removal Precision and Material Form Adaptation
Targeting the production characteristics of lithium iron phosphate—"dry powder is prone to dusting, and slurry has high viscosity"—the JC Electromagnetic Iron Remover adopts a hollow cavity structure: When processing dry powder, it uses an even air flow distribution design to prevent material bridging, ensuring every particle of powder passes through the high-gradient magnetic field area. When processing slurry, it is equipped with anti-clogging guide plates and self-cleaning scrapers to prevent slurry from adhering to the magnet surface and affecting iron removal efficiency, thus meeting the iron removal needs of the entire lithium iron phosphate production process.
(2) Stable and Reliable Operation Guarantee Mechanism
First, it is equipped with a transformer oil circulation cooling system, which can control the operating temperature of the coil within 60°C, avoiding coil demagnetization caused by high-temperature environments (e.g., material temperature after drying is 80-120°C) in lithium iron phosphate production, and ensuring long-term stability of magnetic field strength. Second, it adopts constant current control technology—when the coil resistance increases due to temperature changes, the equipment automatically increases the output voltage to maintain constant current, with a magnetic field strength fluctuation ≤ 5%, avoiding fluctuations in iron removal efficiency caused by unstable magnetic fields.
IV. Product Attribute Table
V. QA
Q1: Will the JC Electromagnetic Iron Remover adsorb effective components in raw materials (such as iron phosphate, lithium salts) when processing lithium iron phosphate?
A1: No. The equipment only exerts adsorption force on ferromagnetic substances such as iron, cobalt, and nickel. The main component of lithium iron phosphate (LiFePO₄) is a non-magnetic substance and will not be adsorbed by the magnetic field. This ensures no loss of effective raw material components while accurately removing iron impurities.
Q2: Lithium iron phosphate production lines require 24-hour continuous operation—can the JC Electromagnetic Iron Remover meet the demand for uninterrupted work?
A2: Absolutely. The equipment adopts an industrial-grade durable design, with core components (coil, cooling system) having a service life of over 8000 hours, supporting 24-hour continuous operation. At the same time, it is equipped with an automatic slag discharge function, eliminating the need for shutdowns for impurity cleaning. Moreover, the fault alarm system monitors parameters such as current and temperature in real time and issues timely alerts when abnormalities occur, ensuring uninterrupted production.
Q3: The space of existing lithium iron phosphate production lines is limited—does the installation of the JC Electromagnetic Iron Remover require large-scale modifications?
A3: No large-scale modifications are needed. The equipment adopts a modular design, allowing for suspended or floor-mounted installation based on production line space. Additionally, the inlet and outlet ports are compatible with industry-standard DN50-DN400 pipeline interfaces, enabling quick connection with existing conveying systems. A professional technical team will provide customized installation solutions, with an average installation and commissioning cycle of only 2-3 days, resulting in minimal impact on the normal production of the line.
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