Boehmite-specific Air Jet Mill Classifier Disperser

Boehmite, also known as soft aluminum hydroxide or thin aluminum hydroxide, was first discovered by German chemist Johann B?hm in 1925, who identified γ-AlOOH as a primary component of bauxite. In 1927, Delapalante analyzed bauxite from the Provence region, confirming this finding and naming the ore formed by γ-AlOOH as boehmite. Boehmite is primarily used for coating lithium battery cell separators and electrode sheets. Coating it on lithium battery separators enhances heat resistance, improves puncture resistance, and increases the safety performance of the batteries. When applied to electrode sheets, it prevents burrs generated during the slitting of cathode material sheets from piercing the separator, thereby improving battery safety, optimizing production processes, and increasing energy density. Additionally, due to its low magnetic impurity content, low water absorption, low specific gravity, and low Mohs hardness, boehmite helps improve the rate performance and cycle performance of batteries, enhances cell yield rates, and reduces self-discharge during battery use, making it a critical material for enhancing the safety and reliability of lithium batteries.

Equipment Features of Boehmite Air Jet Mill Classifier Disperser

Equipment Composition:

The Z-series air jet mill is an upgraded version of traditional fluidized bed jet mills, opposed jet mills, horizontal jet mills, and other types of jet mills. The equipment mainly consists of the crushing host, high-precision vortex classifier, cyclone collector, bag dust collector, air compressor, etc. The full utilization of jet energy is the **highlight** of this machine.

Equipment Features:

1. No water or washing required; entirely dry production process, enabling the obtainment of ultra-fine abrasive powders with a narrower particle size distribution and no contamination. A single powder quenching process can produce products meeting current domestic and international standards (e.g., Chinese standard W63–W35, Japanese standard JIS 2413–30036, and European standard 2053–F12003). Single-machine product yield reaches over 75%.

2. High classification accuracy, more precise cut particle size, lower required rotational speed, and long service life.

3. Independent cast bearing housing, permanently deformation-free, with a long service life.

4. Optimized transmission design, reducing bearing stress and extending service life.

5. Unique pipeline design, facilitating powder flow, reducing wear, and enabling easy replacement and treatment of wear-prone parts.

6. Proprietary variable frequency feeding system aids in material dispersion, ensuring continuous, uniform, and stable feeding, which helps control product particle size.

7. Unique internal recirculation secondary air design, adjustable classifier cone gap, significantly reducing air consumption, lowering classification energy consumption, and ensuring thorough extraction of fine powder.

8. Separate flow paths help reduce wear at the bottom of the classification wheel and improve control over large particles.

9. Fully enclosed negative pressure operation, with no dust pollution.

10. Excellent stability; once parameters are set, stable production can be maintained.

11. The core competitive advantages, especially thorough fine powder extraction and excellent stability, are widely recognized in the industry.

Scope of Application:

This series of crushing and classification equipment, with its unique working principle, can process various materials into ultra-fine powders through dry, high-purity, and low-temperature methods. It is widely used in industries such as chemicals, mining, abrasives, battery materials, refractory materials, non-metallic minerals, metallurgy, building materials, pharmaceuticals, food, pesticides, feed, new materials, environmental protection, and for ultra-fine crushing, dispersion, and particle shaping of various dry powder materials.

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