A device for improving the oxidation rate of NdFeB oxide material

Abstract

The invention relates to a device for increasing the oxidation rate of neodymium-iron-boron oxide materials, which comprises a rotary kiln, in which a stirrer and a ventilation pipe are placed through a mounting frame, and a plurality of air holes are formed on the ventilation pipe. The invention is a rotary kiln with simple structure, ingenious design, convenient disassembly and assembly, and safe use. The rotary kiln achieves the purpose of increasing the oxidation rate of the oxidizing material by increasing the stirring and oxygen content of the oxidizing material in the kiln body, thereby improving the oxidation rate. Rare earth yield of raw materials, saving auxiliary raw materials and energy, reducing production costs of enterprises and improving production efficiency.

Description

technical field [0001] The invention relates to the field of rotary kilns, in particular to a device for increasing the oxidation rate of NdFeB oxide materials. Background technique [0002] NdFeB is a high-end rare earth material, which contains a large amount of rare earth elements neodymium, iron and boron. At present, rotary kilns are usually used to process NdFeB waste. Due to the low oxidation rate, there are many problems in processing and production, such as: 1. The dissolution rate of rare earth is not enough, and the consumption of auxiliary raw materials and energy is large, resulting in production costs. 2. When filtering, the slag is not easy to filter; 3. The production efficiency is low and the labor intensity is high. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a device with reasonable design and simple structure, which can increase the oxidation rate of NdFeB oxide m...

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Problems solved by technology

At present, rotary kilns are usually used to process NdFeB waste. Due to the low oxidation rate, there are many problems in processing and production, such as: 1. The dissolution rate of rare earth is not enough, and the consumption of auxiliary raw materials and energy is large, resulting in production costs. Increase; 2. When filtering, the slag is not easy to filter; 3. Low production efficiency and high labor intensity

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