CN203923329U - A kind of recovery calciner of rare earth waste material - Google Patents
A kind of recovery calciner of rare earth waste material Download PDFInfo
- Publication number
- CN203923329U CN203923329U CN201420239901.1U CN201420239901U CN203923329U CN 203923329 U CN203923329 U CN 203923329U CN 201420239901 U CN201420239901 U CN 201420239901U CN 203923329 U CN203923329 U CN 203923329U
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- China
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- combustion chamber
- recovery
- calciner
- rare earth
- heater
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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
- Y02P10/20—Recycling
Abstract
A recovery calciner for rare earth waste material, comprises body of heater, is provided with combustion chamber in body of heater, between body of heater and combustion chamber, is provided with the roasting space, and upper end, combustion chamber is connected with fuel feed inlet, and lower end, combustion chamber is provided with slag-drip opening, and blast inlet is communicated with combustion chamber through body of heater; Also be provided with multiple vertical circulation passages at inboard wall of furnace body, the top of inboard wall of furnace body is provided with traverse cycle passage, combustion chamber is connected with traverse cycle passage by cycling hot air port, traverse cycle passage is connected with vertical circulation passage, the bottom of inboard wall of furnace body is provided with annular circulation passage, annular circulation passage is connected with each vertical circulation passage, and annular circulation passage is provided with exhaust duct; Opening for feed is communicated with the upper end of the roasting space through traverse cycle passage, and roasting space lower end is provided with discharge port.The utility model can guarantee that the temperature of the roasting space is even, improves the quality of products, and has also reduced the consumption of fuel through the high-temperature flue gas of circulation, has reduced energy consumption.
Description
Technical field
The utility model relates to the recovery calciner in the recovery field of rare earth waste material, particularly a kind of rare earth waste material.
Background technology
In prior art, the recovery of rare earth waste material will be passed through following step conventionally, multiple steps such as the roasting such as recorded in Chinese patent literature CN102643992A, acid-soluble, filtration and extraction, in prior art and have no the record that is exclusively used in rare earth waste recovery calciner, what employing was more conventionally is general tunnel furnace and vertical kiln, tunnel furnace is suitable for streamline to be produced, but requires starting material abundance, and energy consumption is relatively high; Vertical kiln is suitable for the not overabundant operating mode of starting material, and energy consumption is relatively low, produces but be unsuitable for streamline.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of recovery calciner of rare earth waste material, it is the further improvement of making for vertical kiln, can further reduce energy consumption, and can reduce in roasting process fuel to raw-material impact, and can use fire coal as fuel, further reduce production costs.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of recovery calciner of rare earth waste material, comprise body of heater, in body of heater, be provided with combustion chamber, between body of heater and combustion chamber, be provided with the roasting space, upper end, combustion chamber is connected with fuel feed inlet, is provided with grate tooth in combustion chamber, lower end, combustion chamber is provided with slag-drip opening, and blast inlet is communicated with combustion chamber through body of heater;
Also be provided with multiple vertical circulation passages at inboard wall of furnace body, the top of inboard wall of furnace body is provided with traverse cycle passage, combustion chamber is connected with traverse cycle passage by cycling hot air port, traverse cycle passage is connected with vertical circulation passage, the bottom of inboard wall of furnace body is provided with annular circulation passage, annular circulation passage is connected with each vertical circulation passage, and annular circulation passage is provided with exhaust duct;
Opening for feed is communicated with the upper end of the roasting space through traverse cycle passage, and roasting space lower end is provided with discharge port.
The described roasting space is provided with the bottom of inclination, and discharge port is communicated with minimum position.
Described blast inlet is positioned at the below of roasting space bottom.
Described blast inlet is positioned at the below of grate tooth.
Described blast inlet is provided with slag removing hole.
Described opening for feed is provided with charging thermal insulation valve, and discharge port is provided with discharging thermal insulation valve.
Fuel feed inlet is provided with fuel thermal insulation valve, and slag-drip opening is provided with residual cake valve.
Slag-drip opening bottom is provided with slag bucket, is provided with liquid in slag bucket, and slag-drip opening is immersed in liquid.
Between the described roasting space and combustion chamber, be not connected.
In the roasting space, be provided with temperature sensor.
The recovery calciner of a kind of rare earth waste material that the utility model provides, by the structure of improved vertical kiln, be applicable in the recovery field of rare earth waste material the not overabundant operating mode of starting material conventionally, the vertical circulation passage arranging in the roasting space, the heat that the high-temperature flue gas of combustion chamber can be produced is incorporated into the outside of the roasting space through circulation, thereby guarantees that the temperature of the roasting space is even, improves the quality of products, also reduce the consumption of fuel through the high-temperature flue gas of circulation, reduced energy consumption.Further, due to the roasting space and combustion chamber are isolated mutually, therefore the fuel in combustion chamber can not affect starting material, and then avoids affecting recovering effect.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is one-piece construction cross-sectional schematic of the present utility model.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Fig. 3 is the B-B cross-sectional schematic of Fig. 1.
In figure: fuel feed inlet 1, fuel thermal insulation valve 2, cycling hot air port 3, traverse cycle passage 4, temperature sensor 5, combustion chamber 6, vertical circulation passage 7, body of heater 8, thermal insulation layer 9, slag removing hole 10, blast inlet 11, residual cake valve 12, slag-drip opening 13, slag bucket 14, opening for feed 15, charging thermal insulation valve 16, cleaning apparatus 17, exhaust duct 18, discharge port 19, annular circulation passage 20, the roasting space 21, grate tooth 22, discharging thermal insulation valve 23.
Embodiment
In Fig. 1 ~ 3, a kind of recovery calciner of rare earth waste material, comprise body of heater 8, be provided with thermal insulation layer 9 at body of heater 8 outer walls, in body of heater 8, be provided with combustion chamber 6, in this example, the 8 one-tenth concentric annular in combustion chamber 6 and body of heater are arranged, as shown in Figure 3, preferred combustion chamber 6 adopts metal or graphite to make, and preferably adopts graphite material.
Between body of heater 8 and combustion chamber 6, be provided with the roasting space 21, as shown in Figure 3,6 upper ends, combustion chamber are connected with fuel feed inlet 1, for saving energy consumption, in preferred scheme, fuel feed inlet 1 is provided with fuel thermal insulation valve 2, in combustion chamber 6, be provided with grate tooth 22, grate tooth 22 is arranged on the position near the roasting space 21 bottoms conventionally, even to guarantee the temperature in combustion chamber 6,6 lower ends, combustion chamber are provided with slag-drip opening 13, and slag-drip opening 13 is provided with residual cake valve 12.
Blast inlet 11 is communicated with combustion chamber 6 through body of heater 8; The air being come by gas blower or the mixed gas of air and oxygen are in blast inlet 11 is sent to combustion chamber 6.To improve the temperature of combustion of combustion chamber 6 fuels, and guarantee abundant burning.Preferably, in the roasting space 21, be provided with temperature sensor 5, for example thermopair.Control the operational throughput of air output and fuel by temperature sensor 5, coordinate the different proportionings of fuel, with the temperature of controlling the roasting space 21 in the scope requiring, for example conventional 800 ~ 1100 DEG C.
In Fig. 1 ~ 3, also be provided with multiple vertical circulation passages 7 at body of heater 8 inwalls, the top of body of heater 8 inwalls is provided with traverse cycle passage 4, combustion chamber 6 is connected with traverse cycle passage 4 by cycling hot air port 3, traverse cycle passage 4 is connected with vertical circulation passage 7, the bottom of body of heater 8 inwalls is provided with annular circulation passage 20, and annular circulation passage 20 is connected with each vertical circulation passage 7, and annular circulation passage 20 is provided with exhaust duct 18; Structure thus, the high-temperature flue gas after fuel combustion is discharged to cleaning apparatus 17 from exhaust duct 18 after cycling hot air port 3, traverse cycle passage 4, vertical circulation passage 7 and annular circulation passage 20, after heat exchange and vent gas treatment, discharges.Further preferred, the blast pipe being connected with blast inlet 11 is sent to combustion chamber 6 after the interior heat exchange of cleaning apparatus 17 again, thereby avoids the temperature in the air impact combustion chamber 6 of low temperature, also can reduce energy consumption, and blast pipe is not shown in the drawings.The structure of the vertical circulation passage 7 arranging, can guarantee that combustion chamber 6 is more even along the temperature of horizontal direction.
In this example, between the described roasting space 21 and combustion chamber 6, be not connected.Thereby starting material can not be subject to the impact of fuel, therefore adopt structure of the present utility model, can use the fuel including coal-fired.
Further preferred as in Fig. 1, described opening for feed 15 is provided with charging thermal insulation valve 16, and discharge port 19 is provided with discharging thermal insulation valve 23.Structure thus can reduce scattering and disappearing of the roasting space 21 interior temperature as far as possible.
In Fig. 1,2, opening for feed 15 is communicated with the upper end of the roasting space 21 through traverse cycle passage 4, is mutually to isolate, in order to avoid the circulating flue gas of fuel affects starting material between opening for feed 15 and traverse cycle passage 4, improve the difficulty reclaiming, affect the quality of final finished.The roasting space 21 lower ends are provided with discharge port 19.Rare earth scrap feed material enters in the roasting space 21 from opening for feed 15, after roasting after a while, discharges from discharge port 19.
Preferred scheme is as in Fig. 1, and the described roasting space 21 is provided with the bottom of inclination, and discharge port 19 is communicated with minimum position, and annular circulation passage 20 is also arranged on the bottom margin of the roasting space 21.Structure thus, is convenient to discharging.Also vertical circulation passage 7 and the impact of annular circulation passage 20 on raw material discharge have been reduced.
Preferred scheme is as in Fig. 1, and described blast inlet 11 is positioned at the below of the roasting space 21 bottoms, and the side that preferred blast inlet 11 is higher from the roasting space 21 bottoms is passed body of heater 8.Described blast inlet 11 is positioned at the below of grate tooth 22.Above-mentioned structure, can guarantee that combustion chamber 6 is even along the temperature of short transverse, and then guarantees that the roasting space 21 is even along the temperature of short transverse.
Described blast inlet 11 is provided with slag removing hole 10.Structure thus, is convenient to clear up the fuel lime-ash in combustion chamber 6.
Slag-drip opening 13 bottoms are provided with slag bucket 14, in slag bucket 14, are provided with liquid, and slag-drip opening 13 is immersed in liquid.Structure thus, can reduce the dust that deslagging produces, protection production environment.
The above embodiments are only optimal technical scheme of the present utility model; and should not be considered as for restriction of the present utility model; the technical scheme that protection domain of the present utility model should be recorded with claim, comprises that in the technical scheme that claim records, the alternative that is equal to of technical characterictic is protection domain.Being equal within the scope of this, replaces and improves, also within protection domain of the present utility model.
Claims (10)
1. the recovery calciner of a rare earth waste material, comprise body of heater (8), in body of heater (8), be provided with combustion chamber (6), it is characterized in that: between body of heater (8) and combustion chamber (6), be provided with the roasting space (21), upper end, combustion chamber (6) is connected with fuel feed inlet (1), in combustion chamber (6), be provided with grate tooth (22), lower end, combustion chamber (6) is provided with slag-drip opening (13), and blast inlet (11) is communicated with combustion chamber (6) through body of heater (8);
Also be provided with multiple vertical circulation passages (7) at body of heater (8) inwall, the top of body of heater (8) inwall is provided with traverse cycle passage (4), combustion chamber (6) is connected with traverse cycle passage (4) by cycling hot air port (3), traverse cycle passage (4) is connected with vertical circulation passage (7), the bottom of body of heater (8) inwall is provided with annular circulation passage (20), annular circulation passage (20) is connected with each vertical circulation passage (7), and annular circulation passage (20) is provided with exhaust duct (18);
Opening for feed (15) is communicated with the upper end of the roasting space (21) through traverse cycle passage (4), and the roasting space (21) lower end is provided with discharge port (19).
2. the recovery calciner of a kind of rare earth waste material according to claim 1, is characterized in that: the described roasting space (21) is provided with the bottom of inclination, and discharge port (19) is communicated with minimum position.
3. the recovery calciner of a kind of rare earth waste material according to claim 2, is characterized in that: described blast inlet (11) is positioned at the below of the roasting space (21) bottom.
4. according to the recovery calciner of a kind of rare earth waste material described in claim 1 ~ 3 any one, it is characterized in that: described blast inlet (11) is positioned at the below of grate tooth (22).
5. according to the recovery calciner of a kind of rare earth waste material described in claim 1 ~ 3 any one, it is characterized in that: described blast inlet (11) is provided with slag removing hole (10).
6. the recovery calciner of a kind of rare earth waste material according to claim 1, is characterized in that: described opening for feed (15) is provided with charging thermal insulation valve (16), and discharge port (19) is provided with discharging thermal insulation valve (23).
7. according to the recovery calciner of a kind of rare earth waste material described in claim 1 or 6, it is characterized in that: fuel feed inlet (1) is provided with fuel thermal insulation valve (2), slag-drip opening (13) is provided with residual cake valve (12).
8. the recovery calciner of a kind of rare earth waste material according to claim 7, is characterized in that: slag-drip opening (13) bottom is provided with slag bucket (14), and slag bucket is provided with liquid in (14), and slag-drip opening (13) is immersed in liquid.
9. the recovery calciner of a kind of rare earth waste material according to claim 1, is characterized in that: between the described roasting space (21) and combustion chamber (6), be not connected.
10. the recovery calciner of a kind of rare earth waste material according to claim 1, is characterized in that: in the roasting space (21), be provided with temperature sensor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239901.1U CN203923329U (en) | 2014-05-12 | 2014-05-12 | A kind of recovery calciner of rare earth waste material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239901.1U CN203923329U (en) | 2014-05-12 | 2014-05-12 | A kind of recovery calciner of rare earth waste material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203923329U true CN203923329U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420239901.1U Expired - Fee Related CN203923329U (en) | 2014-05-12 | 2014-05-12 | A kind of recovery calciner of rare earth waste material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482504A (en) * | 2016-11-18 | 2017-03-08 | 无锡市伟丰印刷机械厂 | A kind of rare earth waste high-efficient roasting equipment |
| CN107151747A (en) * | 2017-05-14 | 2017-09-12 | 南昌浩牛科技有限公司 | A kind of vertical ion type rareearth ore firing device |
| CN111850290A (en) * | 2020-08-05 | 2020-10-30 | 龙南县堉然科技有限公司 | Rare earth waste airflow mill oxygen-enriched roasting device and use method thereof |
-
2014
- 2014-05-12 CN CN201420239901.1U patent/CN203923329U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482504A (en) * | 2016-11-18 | 2017-03-08 | 无锡市伟丰印刷机械厂 | A kind of rare earth waste high-efficient roasting equipment |
| CN107151747A (en) * | 2017-05-14 | 2017-09-12 | 南昌浩牛科技有限公司 | A kind of vertical ion type rareearth ore firing device |
| CN111850290A (en) * | 2020-08-05 | 2020-10-30 | 龙南县堉然科技有限公司 | Rare earth waste airflow mill oxygen-enriched roasting device and use method 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20190512 |