Nitrogen-protected classifier, specialized classification equipment for 3D printing metal materials

Working Principle:

The ZJ series inert gas protection classifier is used for crushing flammable, explosive, or easily oxidized materials by introducing inert gases (such as nitrogen, argon, carbon dioxide, etc.) as the medium to achieve closed-loop crushing. It consists of a nitrogen compression system, nitrogen filtration system, crushing system, classification system, collection system, feeding and discharging system, nitrogen purity testing and replenishment system, nitrogen generation system, and electrical control system. This equipment is widely applied in the processing of metal powders, easily oxidized raw materials, and flammable or explosive materials.

This airflow classifier is specifically designed and developed for materials that are flammable, explosive, or prone to oxidation. It is based on conventional airflow classifiers and vertical turbine high-precision classifiers, with improvements such as altering the gas composition, modifying the air intake and exhaust piping, and enhancing the sealing process of the equipment. The entire system uses inert gas as the working fluid medium. The complete set of equipment consists of an inert gas source, an oxygen content tester, an intake piping system, a closed-loop feeding system, a vertical turbine classifier, an induced draft fan, a sealed replacement discharge valve, an anti-static pulse reverse-jet dust collector, an inert gas replenishment device, and a cooler. The outlet of the induced draft fan is connected to the inlet of the classifier, forming a closed-loop inert gas circulation system.

Application Fields:

This series is primarily used in military research institutes, metal powder processing, chemical industry, pharmaceutical ultrafine powder, and other fields. The machines in this series operate stably, safely, and reliably. Typical materials include: aluminum powder, titanium alloy, sulfur, cobalt powder, tungsten powder, iron powder, nickel powder, neodymium iron boron, carbonyl iron powder, selenium powder, and various other powder metallurgy materials.