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

Introduction to Components and Functions of Alloy Powder Air Flow Classifier

Metal powder formed by partial or complete alloying of two or more components. Alloy powders are mainly classified into ferroalloy powder, copper alloy powder, nickel alloy powder, cobalt alloy powder, aluminum alloy powder, titanium alloy powder and precious metal alloy powder according to composition. In the preparation of these alloy powders, in addition to ultra-fine crushing by atomization or chemical synthesis, it is also a very important step to use air flow classifier for fine grading and clamping. It can be said that air flow classifier is of great significance for the application of alloy powders

Air flow classifier for alloy powder generally adopts FW type high-precision turbine air flow classifier and FW type inert gas protection air flow classifier. In addition to different classification media, the two types of equipment also have certain differences in overall structure. FW type inert gas protection air classifier is mainly applicable to the classification of flammable, explosive and oxidizing raw materials. Now let's talk about the components and functions of the alloy powder air classifier< Br/>1. Feeding system of air classifier:
1.1. It consists of displacement (volume: about 15L), double pneumatic butterfly valves, buffer tank, feeding valve, feeding pipe, etc< Br/>2. Hierarchical host:
2.1 Hierarchical chamber, the upper section is a grading device, and the lower section is a dispersion device< Br/>2.2 High speed FM motor, frequency conversion control< Br/>2.3 Grading wheel: Precise vertex cutting technology can effectively control the particle size composition and distribution of finished products. The end face between the grading wheel and the front recoil air sleeve is sealed with positive air pressure to effectively prevent large particles from escaping< Br/>3. Cyclone separator
3.1 Cyclone separation body, rectifier tank, double butterfly valve discharge device
4. Dust collector system
4.1 Pulse back blowing filter cartridge type dust collector< Br/>4.2 Double butterfly valves and refueling tanks are used for discharging< Br/>5. Return air filtration and cooling system
5.1 The filter in the middle of the return air pipeline between the dedusting and the fan filters the gas filtered by the main dust collector again< Br/>5.2 The air receiver in the middle of the return air pipeline between the fan and the host prevents high system temperature from causing changes in material properties< Br/>6. Control System
6.1 Whole process PLC automatic control, mainly including equipment startup and shutdown, status display, overload alarm, safety interlock, etc< Br/>6.2 Automatic control of system internal temperature, oxygen content, pressure difference, grading wheel speed, feeding speed, etc< Br/>6.3 The human-computer interface is designed to facilitate the operation of operators and maintenance personnel, set multi-level management permissions, distinguish the operator interface from the manager interface, give fault alarm prompts, and integrate manual and automatic functions< Br/>7. The pipeline system
7.1 mainly includes the powder conveying pipeline, the main gas supply pipeline, the return air pipeline and the branch gas pipeline< Br/>8. Platform system
8.1 mainly includes working platforms (support platforms, operating platforms, maintenance platforms), fences, ladders (inclined ladders and ladders), etc. According to the standardized and ergonomic design, the bolt connection shall fully consider the safety and operation convenience< Br/>Qingdao Youmingke is the source manufacturer specializing in the production of air flow graders in China. Its equipment has been widely and deeply applied in the field of metal powder processing. Among them, nitrogen protected air flow graders have rapidly occupied the market. Many powder metallurgy, 3D printing additive manufacturing and other enterprises are using the equipment and production lines provided by Qingdao Youmingke, and even exporting to foreign countries, Successful cooperation with the world's largest metal injection molding company