High-Speed Powder Modifier

High-speed Powder Modifier Introduction

High-speed Powder Modifier adopts vertical stainless steel cylinder and multi-layer composite blade structure. Through high-speed rotation of multi-layer blades inside the cylinder, it simultaneously completes powder dispersion, additive coating and surface modification in a strong turbulent flow field. It is suitable for powder processing in many fields such as food, pharmaceuticals and non-metallic mineral powders. Often matched with grinding mills, it carries out surface activation and coating treatment on powders after grinding and classification, effectively improving powder dispersibility and compatibility and increasing the added value of powders.

Features & Advantages of High-speed Powder Modifier

High Efficiency & Stability: The equipment forms circulating turbulence through high-speed stirring of blades. Materials circulate with up-and-down convection inside the cylinder to quickly achieve homogeneous powder mixing and additive coating modification. The finished product performance between different batches is uniform and stable.

Wide Application: Compatible with various grinding equipment including Raymond mill, vertical mill and ultra-fine mill. Application sectors cover food additives, plastic filler powders, new energy battery raw materials, building material fillers, metal powders, magnetic powders and other industries.

Wear & Corrosion Resistant: Customized options are available including integral ceramic lining, ceramic wear-resistant cylinder tiles, tungsten carbide spraying / ceramic wear-resistant coating for blades. Standard configuration includes integrated heating & cooling structure of cylinder jacket and variable frequency stepless speed regulation drive system.

Convenient & Reliable: The cylinder adopts stainless steel mirror polishing to effectively reduce powder adhesion. It is equipped with quick-opening sealed lid and visual access port for inspection and maintenance. The main shaft adopts multi-layer composite sealing structure for simple and convenient daily maintenance.

Intelligent Conveying: Equipped with fully automatic batching and conveying system. Industrial PC and PLC jointly realize full-process intelligent control and fault early warning. Meanwhile, it is fitted with weighing, bridging prevention, closed conveying and dust removal modules to realize precise proportioning and dust-free feeding.

Working Principle of High-speed Powder Modifier

High-speed Powder Modifier is generally installed at the rear of the grinding mill. After ore raw materials are ground, classified and collected into base powder, the powder is conveyed to the front silo for temporary storage. During production, base powder is fed from the inlet of stainless steel sealed lid, and modification additives are quantitatively added through independent feeding port. The variable frequency motor drives the main shaft and blades to rotate at high speed, forming continuous up-and-down strong turbulence inside the cylinder. Powder particles are fully tumbled, sheared, collided and dispersed in this environment.

Subsequently, mechanical residual heat generated by powder self-friction or auxiliary electric heating can be used for temperature rise. Powder dispersion, additive coating and surface activation are completed under a controllable constant temperature environment. Circulating cooling water can be passed into the cylinder jacket to precisely control material temperature, and built-in temperature sensors perform real-time monitoring.

Finally, activated and modified finished powder is discharged and collected through the discharge port at the bottom of the cylinder. The main shaft adopts composite gas seal and oil seal double sealing structure to ensure the whole system runs in a closed negative pressure environment.

Application Scenarios of High-speed Powder Modifier

Technical Parameters of High-speed Powder Modifier

Frequently Asked Questions about Powder Modifier

Can powder modifier process high-viscosity and high-moisture powders?

Yes, but moisture content must be controlled. For heavy mineral powder (such as calcium carbonate), it is recommended ≤6%; for light powder (such as aluminum hydroxide), it should be ≤3%. Excessive moisture easily causes wall adhesion and reduces coating uniformity. It is recommended to add a drying process at the front end. High-speed Powder Modifier can be optionally equipped with jacket temperature control and disc throwing blades for materials with high viscosity and poor fluidity.

How to select blade type for powder modifier?

3-blade: Provides balanced and stable powder mixing and dispersion, suitable for most conventional powder raw materials with best universality.

Disc Throwing Blade: High-speed projection breaks materials deposited at the bottom. Suitable for heavy calcium carbonate, talc, metal powder, lithium graphite anode material with poor fluidity and high specific gravity, effectively preventing material accumulation and blockage at cylinder bottom.

Disc Pressing Blade: Enhances downward turbulence inside the cylinder, suitable for low-density fluffy powders such as aluminum hydroxide and ultra-fine silica powder, improving the contact efficiency between powder and additives during coating.

How to choose between self-friction heating and electric heating modes of powder modifier?

Self-friction Heating: Residual heat generated by mutual friction among powder, blades and cylinder wall. It features lower operating energy consumption, suitable for conventional mineral powders such as calcium carbonate and talc with low additive dosage and no need for continuous high-temperature constant modification.

Electric Auxiliary Heating: The cylinder jacket is fitted with electric heat exchange system with adjustable temperature range. It is suitable for powder modification processes requiring constant high temperature, such as stearic acid coating and silane coupling agent activation.