Particle collection device for matte

Abstract

The invention discloses a copper matte granulation and collection device, which comprises a granulation basin, a cold water spray head and a guide slide for guiding molten copper matte are arranged on the wall of the granulation basin, the cold water spray head correspondingly points at a discharge outlet in the lower end of the guide slide, the collection device further comprises a bucket elevator, a lower-end inlet of the bucket elevator is positioned at the bottom of the granulation basin, a material collection bin for collecting blanking materials is arranged at a higher-end outlet of the bucket elevator, a screen obliquely arranged is arranged at a pipe orifice of the upper end of the material collection bin, a bypass pipe for guiding bulk materials into a charging barrel is arranged on the material collection bin and positioned at the lower-end edge of the screen, the higher-end mesh surface of the screen and the higher-end outlet of the bucket elevator are correspondingly distributed, a belt conveyor or a receiving bucket for receiving screened materials is arranged below the screen and positioned at a pipe orifice of the lower end of the material collection bin, so that the separated bulk copper matte can return into sandy copper matte after being broken, and the subsequent grinding situation can be stably facilitated, and the production safety can be improved.

Description

technical field [0001] The invention relates to the technical field of copper smelting, in particular to a granulation collecting device for matte. Background technique [0002] The copper smelting process is generally to smelt the selected copper concentrate to obtain matte, and then transfer the matte to the blowing furnace for blowing to obtain blister copper. The so-called matte is also called molten matte. It is formed by mutual melting of cuprous sulfide and ferrous sulfide. At present, flash smelting and flash blowing are widely used by smelting enterprises because of their environmental protection and high efficiency. Flash blowing uses fine matte as the processing raw material, and the blowing efficiency is improved due to the increase of the surface area of ​​the raw material. Regarding the refining treatment of matte, Liu Weidong published an article titled "Matte Water Quenching and Practice" in the second issue of 2009 of the journal "Nonferrous Metals", which ...

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Problems solved by technology

Regarding the refining treatment of matte, Liu Weidong published an article titled "Matte Water Quenching and Practice" in the second issue of 2009 of the journal "Nonferrous Metals", which pointed out that the high-temperature molten matte discharged from the smelting furnace is passed through the guide material When the tank is introduced into the granulation tank, the molten matte is sprayed with pressurized cold water, so that the high-temperature molten matte is quenched and exploded into granulated matte, and then the granulated matte is sent to the dehydration drum for separation and dehydration. Matte copper can be obtained. The defect in the above-mentioned prior art is that: when the cold water pressure and flow rate for water-quenching matte copper are too large, the explosion intensity of the matte copper is large, and there is a certain potential safety hazard, but the cold water pressure and flow rate are too small , the explosion strength of the matte is too low, so the granulation tank after water quenching contains large pieces of matte with a particle size greater than 10mm, which has a great impact on the subsequent matte grinding conditions. In addition to the large pieces of matte, it is mainly sandy matte with a particle size of 1-3mm and fine-mesh matte with a particle size of less than 1mm. The fine-mesh matte with a particle size of less than 1mm will be directly mixed with water during the drum separation process. The separation of sandy copper matte causes the loss of raw materials, which undoubtedly reduces the copper smelting yield. Therefore, how to ensure the stable and reliable granulation of matte and improve the recovery rate of matte is an important issue that technicians have been studying. One of the subjects

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