CN201983601U - Rotary kiln for oxidizing roasting NdFeB waste materials with high efficiency - Google Patents
Rotary kiln for oxidizing roasting NdFeB waste materials with high efficiency Download PDFInfo
- Publication number
- CN201983601U CN201983601U CN2011200282673U CN201120028267U CN201983601U CN 201983601 U CN201983601 U CN 201983601U CN 2011200282673 U CN2011200282673 U CN 2011200282673U CN 201120028267 U CN201120028267 U CN 201120028267U CN 201983601 U CN201983601 U CN 201983601U
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- rotary kiln
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- waste material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
A rotary kiln for oxidizing roasting NdFeB (neodymium iron boron) waste materials with high efficiency discloses a novel roasting device with the advantages of energy saving and environmental protection. The rotary kiln of the utility model is manufactured by reforming the traditional rotary kiln, wherein a feed inlet of the rotary kiln is slightly higher than a feed outlet, gears are welded outside of the rotary kiln, and the gears are driven by controlling rotating speed of an external speed regulation motor, at the same time, three cyclone dust removal towers, a water spraying device and a pool are added to the feed outlet, a blower is added to a back end of the water spraying device, and a recovery unit is connected thereafter, in addition, a water box is added to the feed inlet, and two screenings are added to the feed outlet. The utility model has the advantages of simple technology, convenient processing and easy assembling.
Description
Technical field
The utility model relates to calcination rotary kiln, is specially a kind of neodymium iron boron waste material efficient oxidation calcination rotary kiln.
Background technology
Traditional neodymium iron boron waste material oxidation is to spread neodymium iron boron waste material (pug of mixing oil) out in the open place, and the height of control stockpile makes its spontaneous combustion oxidation after igniting, and the shortcoming of this oxidizing process has: oxygenation efficiency is low, needs to increase secondary oxidation; Rare earth yield is low; It is bigger to produce waste gas during spontaneous combustion, causes environmental pollution.
The utility model content
The technical problem that the utility model solved is to provide a kind of neodymium iron boron waste material efficient oxidation calcination rotary kiln, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solved realizes by the following technical solutions:
Neodymium iron boron waste material efficient oxidation calcination rotary kiln, on the basis of traditional rotary kiln, transform, rotary kiln is placed on the basis of the good level in school, make charging aperture a little more than discharging opening, at rotary kiln outside welded gear, by controlling the rotating speed driven gear of external buncher, rotary kiln is rotated, make the neodymium iron boron waste material of rotary kiln internal combustion follow rotary kiln to rotate together, roll, increased oxidization time with the air contact, improved oxidation efficiency, and by self gravity progressively to discharging opening direction motion, thereby reach the abundant oxidation of neodymium iron boron waste material.
In order to solve the waste gas that produces when neodymium iron boron waste material burns, machine oil in a large amount of rare earth dust carried secretly in the waste gas and the recovery waste material, increase by three cyclone dust removal towers and water spray system and pond at discharging opening and reclaim machine oil in the waste material, rear end at water spray system increases an air blast, thereby increase the oxidation effectiveness of waste material in the circulation of air enhancing rotary kiln in the rotary kiln on the one hand, waste gas that produces during on the one hand waste combustion and tiny rare earth dust suck its latter linked retracting device makes the machine oil of rare earth dust and waste material can access good recovery, both accomplished that the rare-earth oxidation rate was greater than 90%, rare earth yield is greater than 97%, from and the waste gas that produces when having solved waste combustion, and the machine oil in the waste material can be recycled again.
Neodymium iron boron waste material produces a large amount of heats when spontaneous combustion, in order to utilize this part heat energy, increase a water tank again at the charging aperture place, and the waste heat that produces in the rotary kiln is utilized.Contain a large amount of iron blocks in the neodymium iron boron waste material,, increased the twice screening again at discharging opening in order to solve the separation of this part, at first make material Rare Earth Separation be come out by dusting cover, the bulk iron block comes out from a back scalping, in order to ensure the rare earth yield, has increased the water seal absorption equally at discharging opening.
In the utility model, also answer inner lining refractory block to prevent the loss of heat in the rotary kiln and prevent the iron pipe temperature distortion.
Beneficial effect: the utility model technology is simple, and is easy to process, and assembling makes that the neodymium iron boron waste material oxidation is complete easily, can effectively reclaim the various useful components in the waste material simultaneously.
Description of drawings
Fig. 1 is the schematic diagram of the utility model preferred embodiment.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to the neodymium iron boron waste material efficient oxidation calcination rotary kiln of Fig. 1, the front portion connects three cyclone dust removal towers 4 successively for spray column 3, and a machine oil recovery pond 11 is arranged at spray column 3 bottoms, and front end then connects chimneys 1 by air blast 2; Connect water tank 9 in cyclone dust removal tower 4 rear ends, this water tank 9 is connected on the circulating water pool 10, and the waste heat that produces in the rotary kiln is utilized.
At the device rear portion, be connected and be single-revolution kiln 6 behind the water tank 9, this rotary kiln 6 drives by driven wheel mounted thereto 5 and external motor, simultaneously at the rotary kiln 6 terminal dirt pockets 7 that connect, also possesses the twice screening plant in this dirt pocket 7, in order in dedusting, to filter out useful iron ore and rare earth, then connect spray column chimney 8 by the rear portion air blast in the rear end of dirt pocket 7.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. neodymium iron boron waste material efficient oxidation calcination rotary kiln, it is characterized in that, the rotary kiln charging aperture is a little more than discharging opening, at rotary kiln outside welded gear, by controlling the rotating speed driven gear of external buncher, simultaneously, increase by three cyclone dust removal towers and a water spray system and a pond at discharging opening, rear end at water spray system increases an air blast, connects retracting device thereafter; Increase a water tank at the charging aperture place, and increased the twice screening again at discharging opening.
2. neodymium iron boron waste material efficient oxidation calcination rotary kiln according to claim 1 is characterized in that, also answers inner lining refractory block in the described rotary kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200282673U CN201983601U (en) | 2011-01-27 | 2011-01-27 | Rotary kiln for oxidizing roasting NdFeB waste materials with high efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200282673U CN201983601U (en) | 2011-01-27 | 2011-01-27 | Rotary kiln for oxidizing roasting NdFeB waste materials with high efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201983601U true CN201983601U (en) | 2011-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200282673U Expired - Fee Related CN201983601U (en) | 2011-01-27 | 2011-01-27 | Rotary kiln for oxidizing roasting NdFeB waste materials with high efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201983601U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113061760A (en) * | 2021-04-25 | 2021-07-02 | 赣州泽钰管理咨询有限公司 | Rare earth waste or reclaimed material oxidizing roasting and waste heat utilization system and method |
| CN113444874A (en) * | 2021-05-18 | 2021-09-28 | 广东邦普循环科技有限公司 | Method for safely oxidizing and roasting neodymium iron boron powder and application thereof |
-
2011
- 2011-01-27 CN CN2011200282673U patent/CN201983601U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113061760A (en) * | 2021-04-25 | 2021-07-02 | 赣州泽钰管理咨询有限公司 | Rare earth waste or reclaimed material oxidizing roasting and waste heat utilization system and method |
| CN113444874A (en) * | 2021-05-18 | 2021-09-28 | 广东邦普循环科技有限公司 | Method for safely oxidizing and roasting neodymium iron boron powder and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20150127 |
|
| EXPY | Termination of patent right or utility model |