Liquid metal granulating system by adopting full-automatic program control dry process and method of liquid metal granulating system

Abstract

The invention relates to a metal granulating technology, in particular to a liquid metal granulating system adopting a full-automatic program control dry process and a method of the liquid metal granulating system. The liquid metal granulating system adopts full-automatic control and is high in safety performance. The liquid metal granulating system comprises an automatic liquid feeding system 1, a middle liquid feeding overflow system 2, an automatic dry process granulating system 3, an automatic dehydration and sorting finished product drying system 4, an automatic magnetic chip removal system 5, an automatic stored material conveying system 6, an automatic finished product bagging system 7 and a control cabinet 8. What is most important to metal granulating is the safety, the yield of finished products and the production efficiency; with the adoption of a dry process jetting granulating method, by employing thermal expansion and cold contraction performances of gas, when the gas expands after meeting high-temperature liquid metal, a surface tension force breaks the high-temperature liquid metal into pieces, so as to reach the granulating effect; in addition, by controlling the flow velocity and flow rate of the high-temperature liquid metal and the speed and flow rate of the gas, an explosion situation can be avoided, and the sizes of granulated metal particles can be adjusted effectively. In this way, the production efficiency is extremely high, and the yield of granulated metal is high.

Description

technical field [0001] The invention relates to metal granulation technology, specifically a fully automatic program-controlled dry method for liquid metal system and method. Background technique [0002] With the rapid development of science and technology, the use of metal particles is becoming more and more extensive. For example, indium and its alloys are widely used in the industries of electronic semiconductors, solders and other filling metals for creasing. [0003] At present, the methods related to metal granulation mainly include droplet method, splash method and die-casting method. During the smelting process of splash method, the melt can be granulated by high-pressure water. That is, a fixed nozzle is installed under the chute for the melt to pass through. The high-temperature melt flows out of the chute and falls on the upper surface of the high-speed water flow ejected from the nozzle. The high-speed water flow ejected from the nozzle must wrap the melt flow i...

AI Technical Summary

Problems solved by technology

But the existing problem of this kind of granulation device during granulation is that water is involved in the molten slag or water is located under the continuous slag layer. At this time, a closed system will be formed. With the heat of water and slag Exchange, the pressure in the system will rise sharply, resulting in a violent explosion, that is to say, the existing granulation device is prone to explosion, which will cause certain harm to the surrounding equipment, property and people. The explosion noise also affected the surrounding living environment

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