Preparation equipment for metallic nano powder and use method of preparation equipment

Abstract

Preparation equipment for metallic nano powder comprises a feeding mechanism, a reactor, a high-pressure generator, a cyclone collector, a high-pressure fan and a cooler; the reactor is a vertical reactor; a first air outlet is formed in the top of the reactor; a funnel-shaped collecting device is arranged at the bottom of the reactor and comprises a first air inlet and a discharging port; the feeding mechanism and the high-pressure generator are located at the upper part of the collecting device; the cyclone collector comprises a second air outlet formed in the top, a second air inlet formed in the side and a collector arranged at the bottom; the cyclone collector communicates with the reactor through an air pipe connecting the first air outlet with the second air inlet; the high-pressure fan communicates with the cyclone collector through an air pipe and is connected with a condenser through an air pipe; and the condenser communicates with the collecting device via the first air inlet through an air pipe and supplies cold air to the reactor through the collecting device. With the equipment, metal wire residues and large-particle metallic nano powder can be effectively separated from metallic nano powder with the target particle size.

Description

technical field [0001] The invention belongs to the technical field of preparing metal nano-powder by electric explosion method, and in particular relates to an electric-explosion method metal nano-powder preparation equipment and a use method thereof. Background technique [0002] Nanomaterials refer to new materials composed of particles with a particle size of 1-100nm. Due to their small size, large specific surface area and quantum size effect, they have special properties that conventional coarse-grained materials do not have. Catalysis and other functional properties have shown attractive application prospects. In recent years, nano-powder and its manufacturing technology have developed very rapidly, and various nano-powder preparation methods have emerged, the most common methods are gas condensation method, arc method, explosive wire method and chemical reduction. [0003] The explosive wire method is to apply a high voltage to the wire conductor in a certain medium...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of the prior art, the object of the present invention is to provide a metal nano powder preparation equipment, which can effectively separate the metal wire residue and large particle metal nano powder from the target particle size metal nano powder, so that the collected metal nano powder The particle size distribution is narrow, and there are few large particles; at the same time, it solves the problem of discharge between the residue and the high-voltage electrode plate through the insulating material covered with dust; it also solves the problem of pollution of nanomaterials by gasification of cavity wall materials

Images