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Process for extracting rare earth in neodymium iron boron waste

A neodymium iron boron extraction technology is applied in the field of rare earth extraction technology in neodymium iron boron waste, which can solve the problems of prolonged shutdown period, high labor intensity, long extraction time, etc., and achieve the effect of shortening the period

Pending Publication Date: 2021-06-11
ANHUI JINSANLONG RENEWABLE RESOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the extraction and separation process of rare earth, due to the high extraction temperature, long extraction time and many processes, some elements will crystallize, harden and harden during extraction, and bond with the pipe mouth wall of the extraction box. , needs to be manually knocked and shoveled to remove, the manual labor intensity is high and needs to be shut down to clean up, prolonging the shutdown period, so a rare earth extraction process from NdFeB waste is designed here to solve the above problems

Method used

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  • Process for extracting rare earth in neodymium iron boron waste
  • Process for extracting rare earth in neodymium iron boron waste
  • Process for extracting rare earth in neodymium iron boron waste

Examples

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Embodiment 1

[0020] see Figure 1-3 , the present embodiment provides a rare earth extraction process in NdFeB waste, comprising an extraction cylinder 1, a material guide cylinder 2 and a scraping mechanism 3, the bottom center of the extraction cylinder 1 is vertically provided with a support foot 11, The entire extraction cylinder 1 is supported by the support feet 11. The interior of the extraction cylinder 1 is a hollow structure. The inner bottom of the extraction cylinder 1 is symmetrically provided with an inverted frustum-shaped discharge port on both sides. The inside of the extraction cylinder 1 There are two supporting connecting rods 13 arranged symmetrically at the top, and the tips of the two supporting connecting rods 13 are fixedly plugged with the bottom of the outer wall of the material guide cylinder 2, and the center of the inner bottom of the extraction cylinder 1 is fixed with an electric hydraulic cylinder. 12. The scraping mechanism 3 is located inside the material...

Embodiment 2

[0027] see figure 2, further improvements have been made on the basis of Example 1:

[0028] How to ensure the tightness of the inner bottom of the material guide cylinder 2 during the extraction operation, the diameter of the support base plate 31 is equal to the diameter of the bottom end of the material guide cylinder 2, and the major diameter of the frustum-shaped rubber sealing column 33 is the same as that of the material guide cylinder 2 The inner diameters of the truncated cone-shaped rubber sealing column 33 are fixedly socketed with the annular rubber ring 32 on the upper end surface of the supporting base plate 31, and the annular rubber ring 32 and the truncated-cone-shaped rubber sealing column 33 are set, so that The inner bottom opening of the material guide cylinder 2 can be blocked during the extraction operation.

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Abstract

The invention discloses a process for extracting rare earth in neodymium iron boron waste, and relates to the technical field of neodymium iron boron production, the process comprises an extraction barrel, a material guide barrel and a scraping mechanism, a supporting bottom foot is vertically arranged in the center of the bottom end of the extraction barrel, and the interior of the extraction barrel is of a hollow structure. The two sides of the bottom end of the interior of the extraction barrel are symmetrically provided with discharging ports of inverted circular truncated cone structures, the top end of the interior of the extraction barrel is symmetrically provided with two supporting connecting rods, the tip ends of the two supporting connecting rods are fixedly connected with the bottom end of the outer wall of the material guide barrel in an inserted mode, and an electric hydraulic cylinder is fixedly arranged at the center position of the bottom end of the interior of the extraction barrel. The scraping mechanism is located in the material guide barrel and installed at the upper end of the electric hydraulic cylinder. According to the process for extracting the rare earth in the neodymium iron boron waste, crystallization blocks bonded to the interior of the material guide barrel, the side wall of an opening and the like can be effectively scraped conveniently, manual knocking and shoveling operation is not needed, manual input is not needed, shutdown cleaning is not needed, and the production period is shortened.

Description

technical field [0001] The invention relates to the technical field of NdFeB production, in particular to a rare earth extraction process from NdFeB waste. Background technique [0002] At present, in the production process of NdFeB, the extraction and removal of impurities is one of the key links in the process of rare earth recovery, rare earth separation effect and product purity assurance, and it is also one of the main sources of wastewater in the rare earth smelting process. [0003] In the extraction and separation process of rare earth, due to the high extraction temperature, long extraction time and many processes, some elements will crystallize, harden and harden during extraction, and bond with the pipe mouth wall of the extraction box. , It needs to be manually knocked and shoveled to remove, the manual labor intensity is relatively large and it needs to be shut down to clean up, prolonging the shutdown period, so a rare earth extraction process from NdFeB waste ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B59/00C22B7/00B08B9/087
CPCC22B59/00C22B7/005B08B9/0808Y02P10/20
Inventor 王福寿王庆王仕伟
Owner ANHUI JINSANLONG RENEWABLE RESOURCES