Atomizer capable of preventing blockage of high-melting-point substance in nozzle and flow guide tube

Abstract

The invention discloses an atomizer capable of preventing blockage of a high-melting-point substance in a nozzle and a flow guide tube. The atomizer is composed of a flow guide tube, a nozzle, a metal jacket, a ceramic circular ring, a metal sealing ring, metal circular rings, a heating body A, a gasket and the like, wherein a gap between the flow guide tube and the metal jacket is provided with the heating body A; a heating body B is arranged in each of gaps of the two Laval-structure air outlet tubes of the nozzle; the inner surface of the metal jacket is provided with a metal reflection film or a sprayed white reflection coating; the lower end part of the metal jacket and the lower end part of the flow guide tube are level and are in threaded connection with the ceramic circular ring; the end parts of the air outlets of the Laval-structure air outlet tubes of the nozzle are provided with the metal circular rings; and the end parts of the gaps of the air outlet tubes are in threadedconnection and sealed by the metal sealing ring. According to the atomizer capable of preventing blockage of a high-melting-point substance in the nozzle and the flow guide tube, the problem of blockage of the high-melting-point substance can be effectively solved, the atomizer has the advantages of simple structure, material saving and the like and is convenient to install.

Description

technical field [0001] The invention relates to an atomizer used for producing superfine powder by atomizing molten liquid with gas, which can solve the blockage of high melting point substances in nozzles and draft tubes. Background technique [0002] Gas atomization method, also known as spray method, is a powder making method that uses the kinetic energy of the gas atomization medium to overcome the bonding force between metal liquid atoms and disperse it into powder particles. It is suitable for the production of various powders. Such as aluminum, tin, lead, copper, silver, nickel and other metal powders, as well as brass, bronze, stainless steel, alloy steel, iron-based, nickel-based, cobalt-based and other alloy powders. The metal or alloy powder produced by the gas atomization method is usually spherical or ellipsoidal. Because the gas atomization has a high cooling rate and supercooling degree, the gas atomization can effectively reduce the segregation of the alloy c...

AI Technical Summary

Problems solved by technology

[0009] A kind of atomizer of the present invention solves nozzle and guide tube high-melting-point material clogging, promptly provides the atomizer that is used to prevent metal or alloy clogging especially compound clogging problem such as metal or alloy oxide, it is by changing The structure of the atomizer, the heating element is installed in the gap between the guide tube and the metal jacket and the gap of the outlet pipe of the nozzle.

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