ALPA Silica Powder Processing Technology
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EXPERT IN HIGH-VALUE TREATMENT OF SILICA POWDER SILICA POWDER DRY GRINDING / CLASSIFYING / SURFACE MODIFICATION PROCESSING TECHNOLOGY 11 - SURFACE MODIFICATION 14 - PROJECT SITES 16 - APPLICATION 20 - ALPA PROFILE SHANDONG ALPA PO W DE R T E CH N OLOGY CO., LT D. ©2022

T E CH NOLOG Y PROCESSI NG MODIF ICAT ION SURFACE / CL ASSIF Y ING / GRI NDI N G DRY PO W DE R SI LICA SILICA POWDER GRINDING & CLASSIFYING PROCESSING OF BALL MILL AND AIR CLASSIFIER PROCESSING OF AIR JET MILL PROCESSING OF VIBRATION MILL AND CLASSIFIER

PROCESSING OF BALL MILL AND AIR CLASSIFIER THIS PROCESS IS MATURE AND RELIABLE, WIDELY USED IN THE PRODUCTION OF SILICA POWDER The production line adopts internationally popular continuous production process: ball mill and classifier system.Including crushing, grinding, classifying, packaging, magnetic separation, conveying, lifting, etc. After ball mill, classifiers can be connected in parallel or in series to simultaneously produce products with multiple particle sizes. Output of ball mill is subject to various conditions, such as fineness of feed material,the effective diameter and length...

GRINDING & CL ASSIF YING BALL MILL Length-to-diameter ratio of ball mill is optimized to provide more ideal output and fine powder rate, avoid excessive grinding and improve grinding efficiency; T E CH NOLOG Y The size of grinding cavity and opening are optimized. Feeding and discharging are smooth, no need cooling pipe; The lining plate and grinding medium are manufactured according to German standards, which extend the service life of the grinding medium and improve the wear resisthe size and material of grinding medium are designed to improve the grinding efficiency; The grinding energy...

GRINDING & CL ASSIF YING proportion of grinding medium to achieve ideal grinding automatic control of the production process; fineness. The discharge of grate plate is smooth, and the The conveying system is manufactured according to DIN cylinder does not need cooling; and ISO standards with high stability; The feeding of ball mill is controlled continuously to The whole line adopts automatic control system to achieve ensure the stability of feed. Even if the feed density stable load of equipment and ensure low energy consump- changes, it can also ensure the accuracy and achieve the highest...

GRINDING & CL ASSIF YING PROCESSING OF AIR JET MILL The silica powder produced by this production process has high purity, and its particle size can be controlled flexibly according to user requirements. The added value is high, but this process required high energy consumption.

GRINDING & CL ASSIF YING Jet Mill, cyclone, bag filter and fan constitute a complete milling system. After compressed air is filtered and dried, it is sprayed into the milling cavity at high speed through Laval nozzles. At intersection of multiple high-pressure airflows, materials are repeatedly collided, rubbed, and sheared to be milled. The milled materials rise to the classification area with air flow, the coarse and fine powder are separated under strong centrifugal force generated by the high-speed rotating classification turbine. The fine particles that meet particle size requirements are...

The particle size range of D50:1-25μm; The particle shape is good and the particle size distribution is narrow; The rotor speed can be adjusted by frequency conversion, and the particle size distribution can be adjusted flexibly; utilization rate, helps material flow and improves powder The control system adopts program control, which is easy The design of air screen type secondary air has high energy GRINDING & CL ASSIF YING separation efficiency; The whole system is closed comminution, less dust, low noise, clean and environment-friendly production process; to operate; Inner wall of Jet Mill...

GRINDING & CL ASSIF YING PROCESSING OF VIBRATION MILL AND CLASSIFIER This process due to the limited single-line production capacity, it is suitable for small-scale production.

GRINDING & CL ASSIF YING Under the high frequency vibration of high-speed vibration exciter (or vibration motor), the grinding medium (rod, segment and ball) in the grinding cylinder makes strong projectile motion, high-speed rotation motion and slow revolution motion, which causes strong impact, friction and shear action on the materials during the dispersion period, so that the materials are superfine comminuted and evenly mixed. The product particle size can be changed by adjusting the grinding medium gradation, amplitude, frequency and other parameters, which can be used in series with...

T E CH NOLOG Y PROCESSI NG MODIF ICAT ION SURFACE / CL ASSIF Y ING / GRI NDI N G DRY PO W DE R SI LICA SILICA POWDER SURFACE MODIFICATION Surface modification has important practical significance for improving performance of powder, increasing its practical value and opening up application fields. In plastics, rubber, adhesives and other polymer materials and composite materials, non-metal powder fillers, such as calcium carbonate, kaolin, talc, quartz, wollastonite, asbestos, magnesium hydroxide, aluminum hydroxide, etc., must be surface modified to enhance its compatibility with the matrix,...

Coated quartz powder tend to be ultra-fine at present, ultra-fine powder has a three-dimensional network structure with superior stability, thickening, thixotropy, electrical insulation, absorption and polishing properties. Performance, unique characteristics in many application fields, has irreplaceable role and has good development prospect. There are a large number of active points on the surface, and it is easy to adsorb various atoms and molecules. Due to its good light transmittance and infrared reflectivity, it is widely used in films, coatings and other fields. SURFACE MODIFICATION...

SUR FACE M ODI F I CAT I ON Generally speaking, the finer the particles of silica powder, the larger the specific surface area, and the more surface active hydroxyl groups, the easier it is for chemical reactions, and the better the effect after coating. After silicate minerals such as quartz are mechanically milled, free radicals or ions are generated on the new surface. Under the action of external conditions, the T E CH NOLOG Y surface generates Si-OH, Si-O-Si and Si-OH···H groups. It is easy to bond with foreign functional groups to achieve the purpose of modification and provide a basis...