Recovery device for waste neodymium iron boron magnetic materials and using method

Abstract

The invention discloses a recovery device for waste neodymium iron boron magnetic materials, and relates to the technical field of waste neodymium iron boron processing. According to the recovery device for the waste neodymium iron boron magnetic materials, the recovery device comprises a feeding device, the feeding device comprises a machine shell, a first crushing roller, a second crushing roller, a first rotating rod and a second rotating rod; the inner part of the machine shell is hollow; the first crushing roller is arranged in the inner part of the machine shell and located above a material collecting box; the second crushing roller is arranged in the inner part of the machine shell; the first rotating rod is arranged in the inner part of the machine shell and located below the firstcrushing roller; the second rotating rod is arranged in the inner part of the machine shell and located below the first crushing roller; a material conveying device is arranged on one side of the feeding device; a collecting device is arranged below the material conveying device; a rotating device is arranged in the inner part of the material conveying device; and a screening device is arranged in the inner part of the feeding device. The recovery device for the waste neodymium iron boron magnetic materials is used for solving the problems that in the prior art, when waste neodymium iron boron is used for treating surface waste, all the surface waste cannot be effectively and rapidly shaken off, and the waste neodymium iron boron obtained after waste removing cannot be rapidly discharged,so that blocking is caused.

Description

technical field [0001] The invention relates to the technical field of waste NdFeB processing, in particular to a recovery device and a use method of waste NdFeB magnetic materials. Background technique [0002] Waste NdFeB is the main type of rare earth permanent magnet waste at present. Waste NdFeB is generally powdery, granular, blocky, muddy, some with high water content, some with less water content, and some soaked in liquid Among them, some samples showed different colors and odors, and most of the samples had low content of volatile components. The recovery of waste NdFeB is more convenient than the direct crushing of ore to obtain rare earth resources, because the content of rare earth in waste NdFeB is much higher than that of ore. [0003] This also requires the recycling and processing of waste NdFeB, and the recovery of waste NdFeB is mainly through multiple steps such as roasting, acid dissolution, filtration and extraction. However, in order to ensure the tre...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a recovery device for waste NdFeB magnetic materials, which is used to solve the waste NdFeB waste that cannot be effectively and quickly shaken off all the surface waste in the prior art when the waste gas NdFeB is being processed, and the waste removal is completed. Iron and boron can not be discharged quickly causing the problem of clogging

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