Process and device for smelting copper by pulsation vortex method

A process and method for copper, which is applied in the field of pulsating cyclone copper smelting process and devices, can solve the problems of high occurrence rate of smoke and dust, low probability of collision between particles, scouring of furnace walls, etc., and achieves low occurrence rate of smoke and dust and oxygen utilization rate The effect of high, high collision probability

CN101705369BActive Publication Date: 2011-01-05YANGGU XIANGGUANG COPPER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2011-01-05

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Abstract

The invention relates to a process and a device for smelting copper by a pulsation vortex method. The process comprises the following steps of: mixing dry copper concentrate powder or matte powder with oxygen-enriched air, and putting the mixture in a reactor to form high-speed vortex taking an axis as a center; introducing pulsation oxygen into the center of the high-speed vortex, performing pulsation combustion to generate pulsation turbulent flow in the high-speed vortex so as to promote particles to collide with one another, then forming a pulsation vortex reaction area with a high-temperature field, a high oxygen field and a high particle field, and completing a reaction of manufacturing the matte and slag from the copper concentrate or manufacturing crude copper and slag from the matte; after the reaction, precipitating fused materials in a fusing pool at the bottom of the reactor, and then separating the matte and slag or the crude copper and slag; and sending SO2 gas fume to an acid preparation process. The process and the device have the advantages of: 1, high reaction efficiency, high oxygen utilization efficiency and low fume yield; 2, high capacity, low energy consumption, small reaction space, centralized heat energy reacted, low loss of a refractory material of a furnace body, no need of a huge metallurgical hearth and low investment cost; and 3, environmental protection and simple, convenient and reliable technological operation.
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Description

Copper smelting process and device by pulsating swirling method technical field The invention relates to the metallurgical technical field of copper, nickel, lead, etc., in particular to a copper smelting process and device by a pulsating swirl method. Background technique Copper is mainly sulfide ore and oxide ore in nature, especially sulfide ore is the most widely distributed, and about 80% of copper ore exists in the form of Cu-Fe-S ore. Pyrometallurgy is usually used to extract copper from such ores. The general process is: copper sulfide ore → mining process → copper concentrate → smelting process → matte copper → blowing process → crude copper → anode furnace process → anode copper →Electrolysis process→High-purity cathode copper. At present, the smelting process mainly includes flash smelting and bath smelting. Because flash smelting has the advantages of high efficiency, energy saving, and environmental protection, more than 60% of the copper in the world today i...

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