Rare earth waste pretreatment workshop

Abstract

The invention provides a rare earth waste pretreatment workshop. The workshop comprises a feeding system, a heating system, a cooling system, a dust collecting system and a heat exchange recovery system, wherein the feeding system is used for feeding materials to the heating system, the heating system is used for conveying and heating rare earth oxide waste, the cooling system is connected with the heating system and used for conveying and cooling the heated and oxidized rare earth waste, the dust collecting system comprises a finished product bin, the dust collecting system is connected witha rear end of the cooling system and is used for grinding the cooled rare earth waste into rare earth dust and collecting the rare earth dust into the finished product bin, the heat exchange recoverysystem achieves graded cooling of the rare earth waste through air draft at a tail end of the heating system and air draft at a front end of the cooling system. The workshop is advantaged in that full-closed and full-automatic machining of the rare earth waste can be achieved, and rare earth dust collection in the machining process can be achieved.

Description

technical field [0001] The invention relates to the field of rare earth pretreatment equipment, in particular to a rare earth waste pretreatment workshop. Background technique [0002] Before the extraction of rare earth waste, it is generally necessary to heat and oxidize the rare earth waste, and the rare earth waste after the oxidation heat treatment in the heating kiln needs to be further cooled to below 40 to 50 degrees before entering the subsequent pulverization process of rare earth waste pretreatment It is convenient for rare earth extraction after pretreatment. [0003] The traditional pretreatment process of rare earth waste is heating oxidation-natural cooling-pulverization. Specifically, the temperature of rare earth waste is very high after heating and oxidation in the heating kiln, so after pouring out the rare earth waste from the heating kiln, it needs to be naturally cooled to a suitable temperature. The rare earth waste is then manually transported to the...

AI Technical Summary

Problems solved by technology

[0003] The traditional pretreatment process of rare earth waste is heating oxidation-natural cooling-pulverization. Specifically, the temperature of rare earth waste is very high after heating and oxidation in the heating kiln, so after pouring the rare earth waste out of the heating kiln, it needs to be naturally cooled to a suitable temperature. The rare earth waste is then manually transported to the next process for processing. On the one hand, the overall pretreatment time is greatly increased due to natural cooling. On the other hand, manpower is required for transportation and turnover, resulting in increased labor costs. The process of pouring out and pouring rare earth waste will also cause rare earth dust to fly, which not only wastes materials, but also pollutes the pretreatment workshop

[0004] In summary, the existing rare earth waste pretreatment workshop is completely unable to realize the fully enclosed and fully automated processing of rare earth waste during the pretreatment process, and cannot completely collect the rare earth dust during the processing

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