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WSP Nanomicron large scale Bead mill
WSP Nanomicron large scale Bead mill
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Rigid Growth Drivers of Nano Grinding Technology
Amid the rapid iteration of new energy, new materials and intelligent manufacturing industries, nano-scale particle grinding has become a core link determining product performance. Scenarios including the energy density improvement of new energy battery materials, uniformity optimization of ink and coatings, and conductivity breakthrough of photovoltaic electronic pastes all generate rigid demand for nano grinding equipment featuring high flow rate, high precision and low energy consumption.
From a market perspective, three core demands are reshaping industry standards:
- Capacity Upgrading: Driven by the large-scale production of new energy batteries, photovoltaic modules and other industries, the hourly processing capacity of single equipment has surged from tens of liters to hundreds of liters, making high-flow continuous production a basic industry requirement.
- Precision Breakthrough: The particle size D50 of battery cathode materials (such as lithium iron phosphate and ternary materials) needs to be stably controlled within 1-5 μm, and the particle dispersion of photovoltaic silver paste is required to reach 99%. The particle size distribution deviation of traditional grinding equipment can no longer meet such stringent standards.
- Intelligent Adaptation: The rising demand for flexible production with diversified varieties and small batches requires equipment to switch formula parameters rapidly and connect intelligently with automated production lines, forming a closed-loop full process of online monitoring, real-time adjustment and data traceability.
Against this backdrop, the pin-type high-flow nano bead mill, with its unique advantages of high energy density grinding and continuous production, serves as a critical bridge connecting laboratory formula research and industrial mass production. Its technological innovation capability directly underpins the competitiveness of downstream industries.
Working Principle and Equipment Structure: Innovative Design Breaking Traditional Grinding Bottlenecks
Longxin Intelligent pin-type high-flow nano bead mill adopts the core design concept of modular grinding components and innovative flow-through screen separation, fundamentally breaking the structural limitations of the integrated grinding and separation design of traditional bead mills, and realizing independent optimization of high-efficiency grinding and precise separation.
1. Core Working Principle
After entering the grinding chamber via the feeding system, materials form a three-dimensional motion trajectory of circumferential eddy current and radial impact through the combined turbine-pin structure. The turbine assembly drives grinding media (0.3-0.5mm zirconia beads) to form high-speed circumferential circulation. Meanwhile, radial protrusions of pins generate high-frequency impact, enabling material particles to be refined step by step under the combined effects of shearing, collision and extrusion.
The separation unit adopts a large-area screen, which delivers higher flow capacity without compromising product quality and effectively solves the common pain point of screen clogging in traditional equipment.
2. Key Structural Components
- Silicon Carbide Grinding Chamber: Made of high-wear and high-thermal-conductivity silicon carbide material (hardness: HV1800+). It features outstanding long-term wear resistance with a service life over 5 times that of traditional stainless steel chambers, and efficiently dissipates heat generated during grinding to control temperature rise inside the chamber.
- Tungsten Carbide Turbine & Pin Assembly: Pins are made of tungsten carbide (hardness: HRC90) with special surface coating treatment. It maintains uniform energy density distribution at a rotating speed of 300-1800 r/min, preventing particle agglomeration caused by excessive local grinding.
- Large-area Screen Structure: Effectively boosts production efficiency. The enlarged screen area keeps internal chamber pressure low, reduces heat accumulation, and further improves continuous production capacity.
- Intelligent Control System: Equipped with integrated PLC modules and temperature & pressure sensors to collect real-time process parameters. It automatically adjusts operating parameters such as rotating speed and material flow through algorithm models.
Performance Characteristics and Technical Improvements
From Basic Grinding to High-quality, Cost-effective and Stable Grinding
After a decade of technological iteration, Longxin Intelligent has achieved five core breakthroughs based on conventional pin-type bead mills, with overall performance parameters exceeding industry standards.
(1) Grinding Efficiency: Production Capacity Increased 2–3 Times
Relying on the modular grinding assembly and innovative flow-through screen separation structure, the effective grinding time of materials inside the chamber is 1.8 times that of traditional equipment. Meanwhile, the screen flow area is increased by 40% compared with conventional structures, delivering an effective production capacity 2 to 3 times that of ordinary bead mills.
(2) Particle Size Control: Precise D50 Deviation Regulation
The combined turbine and pin structure delivers uniform shear force to material particles. Equipped with 0.3–0.5mm fine zirconia beads (roundness ≥ 95%), the machine stably controls the D50 particle size within 100 nm–2 μm with a narrower particle size distribution than the industry average. In the production of electronic ceramic ink, it maintains a low standard deviation of particle size distribution to ensure smooth printing and consistent color performance.
(3) Separation Technology: Screen-free Design Solves Two Major Industry Pain Points
Adopting a centrifugal screen-free separation design, it addresses two critical defects of traditional screen separation:
- Anti-clogging: Effectively prevents screen blockage caused by high-viscosity materials and fibrous impurities, extending continuous operation time from the traditional 8 hours to 72 hours.
- Low contamination risk: It avoids direct contact between metal screens and materials, reduces metallic impurities in finished products, and meets high-purity requirements of new energy materials, semiconductors and other high-end sectors.
(4) Energy Consumption & Cost: Superior Economy with Lower Unit Power Consumption
Cost optimization is realized through three energy-saving designs:
- The silicon carbide grinding chamber features thermal conductivity three times higher than stainless steel. Combined with the chamber wall cooling system, operating temperature is well stabilized without additional heat exchangers, cutting energy consumption.
- Fine-grain zirconia beads provide higher grinding efficiency and reduce media consumption under the same output.
- The extended service life of wear-resistant components greatly reduces daily maintenance costs.
(5) Intelligence & Compatibility: Upgrade from Standalone Operation to Production Line Collaboration
- Intelligent interconnection: Compatible with MES systems; flow rate, rotating speed and other parameters can be set via PLC. Real-time online particle size monitoring data is transmitted to the central control room to realize closed-loop control with automatic parameter adjustment against particle size deviation.
- Custom parameter packages: Preloaded process formulas are available for cathode materials such as layered oxides and Prussian blue, anode materials including hard carbon and silicon-carbon composites, as well as photovoltaic silver paste, UV ink and other materials, enabling rapid parameter switching for product changeover.
- Multi-solvent adaptability: Compatible with water-based, oil-based and solvent-based materials. The grinding chamber can be customized with polyurethane, silicon nitride and other materials, with 316L stainless steel optional to meet sanitary standards for food, pharmaceutical and other industries.
Industry Adaptation
Customized Grinding Solutions for Multiple Fields
Longxin Intelligent high-flow pin-type nano bead mills have been maturely applied in five major industries and become the core production equipment for leading enterprises:
(1) New Energy Battery Materials
It delivers a low-temperature grinding solution for lithium iron phosphate and ternary materials, with discharge temperature controlled at ≤ 55°C to prevent high-temperature oxidation of materials. Targeting the high-hardness characteristics of silicon-carbon anode materials, the combined configuration of tungsten carbide pins and 0.3 mm zirconia beads stably controls the D50 particle size at 100 nm.
(2) Inks & Coatings
In UV ink production, pigment particles can be ground to 100–300 nm, boosting the glossiness of cured coatings by 20%. For water-based wood paint grinding, it narrows the particle size distribution and effectively solves the floating color and blooming defects caused by traditional equipment.
(3) Photovoltaic Electronic Paste
Adopting a low-speed and high-energy-density design for silver paste grinding, it ensures uniform dispersion and non-oxidation of silver particles, increasing the conductivity of finished paste by 15%.
(4) Fine Chemicals
In the grinding of nano catalysts, the D50 particle size is controlled below 500 nm to improve catalytic reaction efficiency. In pigment dispersion, the tinting strength of color paste reaches 1.3 times that of traditional processes.
(5) Food & Pharmaceuticals
Equipped with food-grade zirconia grinding chambers, it is applied to nano-scale traditional Chinese medicine powder grinding. It achieves a high cell wall breaking rate, higher dissolution rate of active ingredients, and extremely low residual metallic impurities.
Defining New Standards for Nano Grinding Through Technological Innovation
By virtue of three core technologies — modular grinding components, innovative flow-through screen separation and intelligent linkage — Longxin Intelligent high-flow pin-type nano bead mills redefine the efficiency, precision and cost-effectiveness of nano-scale grinding.
From laboratory pilot tests to industrial mass production, and from single materials to diversified systems, we always take "adapting equipment performance to industrial demands" as the core orientation, and provide stable, efficient and intelligent grinding solutions for strategic emerging industries such as new energy and advanced new materials.
In the future, Longxin Intelligent will continue to deepen its efforts in nano grinding technology. Through the in-depth integration of material innovation, algorithm optimization and production line integration, we will help more industries break through the particle size bottleneck and achieve leapfrog improvement in product performance.
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