Lithium Battery Material Lithium Iron Phosphate Special Air Jet Mill Grinding and Classifying Machine

Material Properties

Lithium iron phosphate is a new type of electrode material for lithium-ion batteries. It is characterized by high discharge capacity, low cost, non-toxicity, and no environmental pollution. Countries around the world are competing to achieve industrial-scale production. However, its low energy density affects the electrical capacity. Currently, the main production method is high-temperature solid-phase synthesis, which yields relatively stable product specifications.

Equipment Selection：

Professional customization of complete production lines for lithium iron phosphate crushing, sorting, drying, packaging, and conveying equipment.

Equipment Features:

This system is a specialized production line for lithium iron phosphate preparation, developed by our company based on the needs of lithium iron phosphate powder manufacturers and the challenges encountered during the production and processing of lithium iron phosphate. This production line employs a high-temperature dry nitrogen closed-loop circulation system, integrating ultrafine grinding and drying of lithium iron phosphate simultaneously within the nitrogen closed-loop circulation system. It fully encloses the sintering system, grinding system, and packaging system used in the production of lithium iron phosphate. During processes such as sintering, grinding, and packaging, lithium iron phosphate is transported in a sealed manner. The grinding system is equipped with a jet mill, using high-temperature dry nitrogen as the grinding gas source to perform opposed jet instantaneous drying of lithium iron phosphate, enabling simultaneous grinding and drying. This system resolves the issue of needing continuous drying of intermediate products during the production of lithium iron phosphate, saving energy and reducing production costs.

Flowchart of the New Energy-Saving Lithium Iron Phosphate Powder Preparation Process

Process Flow Chart for Conventional Lithium Iron Phosphate Powder Preparation

The new lithium iron phosphate production line is a specialized system that integrates high-temperature nitrogen-protected jet milling and drying systems. By utilizing high-temperature drying gas, it achieves ultrafine grinding of the lithium battery cathode material lithium iron phosphate while simultaneously performing heat and mass transfer and instantaneous drying of the material surface moisture through a supersonic gas jet swirling flow field. This enables the integration of ultrafine grinding and trace moisture drying for lithium iron phosphate. When the feed moisture is 3000 PPM and the feed particle size is d50=20-30um, the integrated grinding and drying process yields a final product with a particle size of d50=0.6-2um, d100=4-10um, and a final moisture content of 200-500 PPM. Taking an annual output of 3000T as an example, the unit energy consumption per ton is 650-900 RMB/T, and the nitrogen consumption is 410-600 Nm³.3/h. Compared with traditional double-cone drying or roller hearth furnace drying combined with ultrafine grinding processes, this method saves 4.5 to 5.5 million yuan in energy consumption annually. At the same time, the ultrafine grinding and drying processes are realized through a fully closed-loop pneumatic conveying system, ensuring zero dust pollution throughout the entire production process. This technology effectively integrates ultrafine grinding for lithium iron phosphate with micro-moisture control on the surface of ultrafine particles, successfully addressing the current challenges that limit the lifespan and safety of lithium batteries. It represents a major breakthrough in the preparation of ultrafine lithium iron phosphate powder for lithium battery cathode materials.

Main Technical Parameters:

We offer a new type of lithium iron phosphate production line and equipment, which can improve production efficiency, reduce production costs, and enhance product quality!

About Us

[Sichuan Zhongjin Powder Equipment Co., Ltd.] is located in Mianyang, China's Science and Technology City. Leveraging the civilian technology achievements of the Asia's wind tunnel cluster—the China Aerodynamics Research and Development Center, the company integrates aerodynamics, materials science, and mechanical manufacturing, and is dedicated to the research, development, manufacturing, sales, and service of ultra-fine grinding and classification equipment.

The company possesses core R&D technologies for world-class ultrafine grinding and classification equipment, including the full utilization of jet flow energy, efficient classification with strict control of over-grinding, reliable sealing and leak-free technology, large particle control technology, complete, stable, and smooth system design technology, constant gas-solid concentration ratio technology within the grinding chamber, ultrafine powder collection, dust removal, and flue gas treatment technology, as well as ultrafine grinding particle morphology control technology.

Regarding after-sales service

1、Professional technical personnel provide on-site guidance for installation and commissioning, and train operators.

2、Regular follow-up visits, provision of technical consultation and spare parts, and joint resolution of issues arising during production.

3、Meanwhile, the Technical Service Department promptly relays technical information and user feedback regarding equipment in use to the production and design departments, integrating these insights into all stages of development, design, and production to continuously provide users with better equipment.

4、When customers encounter issues, our company provides an immediate response during working hours and gives a reply within 2 hours. For problems that cannot be resolved via phone or fax, we will dispatch personnel to the site within 48 hours for domestic users.

5、We provide year-round technical consultation and lifelong discounted spare parts.

Friendly Reminder

IThe company specializes in producingJet mill, high-precision air classifier, ultra-fine classifying impact mill, inert gas protection milling and classifying equipment, dust collector, horizontal disc mill, jet milling and classifying machine, steam kinetic energy mill, shaping machine, pneumatic conveying system, vacuum feeder, colorant-specific milling and classifying machineUltra-micro and ultra-fine powder equipment and supporting production lines. EquipmentSuitable for ultra-fine grinding of materials in industries such as chemical materials, battery materials, non-metallic minerals, pharmaceuticals and food, metal powders, new materials, superhard materials, and ceramic building materials. The equipment operates under negative pressure throughout the entire production process, ensuring green and environmentally friendly operation. The particle size ranges from 0.2 to 200μm and is adjustable. Welcome to call for consultation.

Our company has various types of crushing testing machines. You are welcome to bring materials for testing! For more details, please contact 13035******.