• 18 Oct, 2022
• By EPIC Powder
• 2 Comments

3D printing powder air classifier Umico powder machinery for loose particles and improving classification efficiency

The 3D printing powder air classifier of Qingdao Youmingke has two models, namely FW and FW. It can carry out efficient and accurate grading cards for different 3D printing powders. The 3D printing powder air classifier is designed with a reasonable dispersing structure, which can loose particles and improve grading efficiency without great pressure loss. With the increase of the frequency of the circulating fan, a closed classification is formed, which greatly reduces the pressure loss, thus reducing the energy consumption, eliminating the dust removal device, and the classification efficiency is higher

Structural characteristics of 3D printing powder air classifier
(1) Under the action of high-speed rotating impeller, the pressure of the gas flowing through the impeller increases. After the high-pressure air flows out of the impeller, the jet fine particle ring passes through the impeller. Because the blades of the rotating air guide vane are designed to be curved, the inlet section area is large, and the outlet section area is small, so the air pressure at the outlet decreases, the speed increases, and the flow direction flows out, which is conducive to classification< Br/>(2) The grading point adjustment mechanism is equipped with three adjustment rods, which are kept in synchronous motion by chains. When the adjusting rod moves upward, the fine powder increases: when the adjusting rod moves downward, the fine powder decreases. The grading point can be continuously adjusted steplessly. The product particle size of Xinhai air classifier with good performance can be adjusted steplessly. The particle size of the graded product can reach D97:3~150 μ m, which is suitable for fine grading of dry micron products< Br/>(3) A control ring is set in the control ring to ensure that a proper section is formed between the control ring and the injection fine particle ring, and to control the stable flow rate of air< Br/>(4) Excess gas will inevitably be brought into the air outlet from dry materials, and the air will expand due to the high temperature in the classification room, so a residual air outlet is designed to keep the air flow in the classification room stable and balanced< Br/>For the raw materials that are easy to oxidize, combust and explode, the 3D printing powder air classifier can use inert gas to protect the closed loop circulation system. The inert gas can choose nitrogen, argon, helium, etc. For example, in the graded titanium alloy raw materials, argon protection is more appropriate and has high safety performance