CN203878184U - Reducing roasting device of copper slag rotary kiln - Google Patents
Reducing roasting device of copper slag rotary kiln Download PDFInfo
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- CN203878184U CN203878184U CN201420293810.6U CN201420293810U CN203878184U CN 203878184 U CN203878184 U CN 203878184U CN 201420293810 U CN201420293810 U CN 201420293810U CN 203878184 U CN203878184 U CN 203878184U
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- rotary kiln
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- copper ashes
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Abstract
The utility model provides a reducing roasting device of a copper slag rotary kiln. The reducing roasting device of the copper slag rotary kiln comprises a rotary kiln body, a raw material processing device, a stock bin, a proportioner, a feeding device, a kiln tail, a kiln head, a cooler, a coal firing device, a temperature detecting device, a driving device and a supporting device; the reducing roasting device of the copper slag rotary kiln is characterized by further comprising a temperature regulating device, wherein the temperature regulating device is provided with a combustion fan and an air volume regulating device for firing CO and controlling the volatile matters of coal on the rotary kiln body; the cooler is located on the side lower part of the kiln head; the coal firing device is arranged on the kiln head of the rotary kiln body; the raw material processing device is located above the stock bin; a discharge hole, opposite to a feeding hole in the top of the stock bin, is formed in the bottom of the raw material processing device; the proportioner and the feeding device are located at the feed portion of the kiln tail of the rotary kiln body; and the temperature regulating device and the temperature detecting device are mounted above the middle part of the rotary kiln body. The reducing roasting device of the copper slag rotary kiln has the beneficial effects that the iron silicate is quickly reduced, the reaction efficiency is greatly improved, the dust amount brought out by smoke is reduced and the iron resource in the copper slag is effectively recovered.
Description
Technical field:
The utility model relates to metal melting equipment technical field, particularly relates to a kind of copper ashes rotary kiln reduction roasting device.
Background technology:
In the prior art, China is as main copper producing country of the world, annual copper ashes quantity discharged is about more than 800 ten thousand tons, contains a small amount of precious metal such as the multiple valuable metals such as Fe, Cu, Zn, Pb, Co and Ni and Au, Ag etc. in copper ashes, and wherein iron level is far above China's iron ore payable grade.Copper ashes is divided into shrend copper ashes and slow cooling copper ashes by type of cooling difference, and slow cooling copper ashes is all through floatation recovery copper wherein, and shrend copper ashes is not utilized effectively substantially; Shrend copper ashes as cement raw material and antirust abrasive material, does not also have the precedent of utilization except a small amount of.Iron resources in slow cooling copper ashes and shrend copper ashes is not recycled utilization yet.Slow cooling copper ashes selects waste residue and the at present large portion of shrend copper ashes after copper all to store up processing, and not only land occupation but also contaminate environment, also cause the huge wasting of resources.Iron in copper ashes is mainly to have, have simultaneously a small amount of Z 250 (Fe with the form of ferrosilicate (fayalite and pyroxene)
3o
4).Therefore, utilize traditional mineral working method to be difficult to efficient recovery Fe wherein.Reclaim the Fe in copper ashes, the iron existing must be transformed into Fe in copper ashes with ferrosilicate form
3o
4or metallic iron, is then reclaimed through magnetic separation process.And ferrosilicate is transformed into Fe
3o
4be subject to temperature, atmosphere and time effects very large, be difficult to realize.Therefore, the most effective approach of iron reclaiming in copper ashes changes ferrosilicate into metallic iron exactly, thereby separates by magnetic separation, obtains iron fine powder.And the reduction difficulty of ferrosilicate is large, must adds flux and reduce its reduction difficulty.For ensureing the reduction ratio of ferrosilicate, need be to by the granularity control of flux and copper ashes within the specific limits.
Utility model content:
The purpose of this utility model is to overcome the deficiency that prior art exists, provide a kind of efficient recovery slow cooling copper ashes to select the device of the iron in waste residue and shrend copper ashes after copper, accomplish recycling economy and resource maximum using, solve Domestic Resources problem in short supply, also solve copper ashes and pile up the environmental pollution bringing, the problem of ecological damage.
Technical solution of the present utility model is to provide a kind of copper ashes rotary kiln reduction roasting device, comprises rotary kiln body, material processing device, feed bin, dosing unit, feeding device, kiln tail, kiln hood, cooler, coal-burning installation, temperature measuring equipment, drive unit, bracing or strutting arrangement; It is characterized in that: also comprise temperature control equipment, temperature control equipment arranges burning CO and controls burner blower and the volume adjusting apparatus of coal fugitive constituent on rotary kiln body; Cooler is positioned at the side lower part of kiln hood; On the kiln hood of rotary kiln body, coal-burning installation is set; The material processing device arranging is separately positioned at the top of feed bin; The discharge port that material processing device below has is relative with the opening for feed of feed bin top; Dosing unit, feeding device are positioned at charging place of kiln tail on rotary kiln body; The top, middle part of rotary kiln body is provided with temperature control equipment and temperature measuring equipment; Be positioned at the below at rotary kiln middle part with the drive unit of supporting seat; The both sides that are positioned at the drive unit of rotary kiln below arrange respectively the bracing or strutting arrangement of rotary kiln; Copper ashes and reductive agent and flux compound are positioned at the bottom of rotary kiln body; Be further characterized in that: thermostatic burner blower arranges according to the length of rotary kiln, quantity is no less than 2; Apart from kiln hood 15-20m; Apart from being separately installed with burner blower on the kiln body within the scope of kiln tail 20-25m; Material processing device comprises the levigate equipment of copper ashes, reductive agent Crushing & Screening Machineries, flux crushing and screening device; Before material processing device and dosing unit are arranged on rotary kiln, feeding device; Feeding device is provided with and ensures that the material preparing adds the material measuring device in rotary kiln by a certain amount of by charging opening.
The beneficial effects of the utility model are: the raw material of crossing through this device processing treatment, reaction efficiency increases substantially, ferrosilicate fast restore, and wherein copper ashes is levigate to-0.074mm>60%, reductive agent granularity 5-10mm, flux granularity 0-5mm; The coal dust of Fuel Selection-200 order >80%, as fuel, can be controlled temperature of kiln head and atmosphere by adjusting coal combustion rate, avoids the secondary oxidation of excess Temperature and iron; Temperature control equipment arranges the burner blower of burning CO and coal fugitive constituent at kiln body, reach by be blown into combustion air in different rotary kilns region the effect of controlling different zones temperature in kiln, can make kiln temperature more even, strengthen material in the high temperature section residence time, avoided the situation of the too high ring formation of local temperature; Reductive agent and fuel adopt bituminous coal or hard coal, add respectively in kiln, have effectively avoided the too high phenomenon of local temperature, also greatly reduce the Dust Capacity that flue gas is taken out of, have effectively reclaimed the iron resources in copper ashes.
Brief description of the drawings:
Fig. 1 is the structural representation of a kind of copper ashes rotary kiln of the utility model embodiment reduction roasting device;
Fig. 2 is the structural representation of temperature control equipment 10 in the utility model embodiment.
In accompanying drawing: 1. rotary kiln body; 2. material processing device; 3. feed bin; 4. dosing unit; 5. feeding device; 6. kiln tail; 7. kiln hood; 8. cooler; 9. coal-burning installation; 10. temperature control equipment; 11. temperature measuring equipments; 12. drive units; 13. bracing or strutting arrangements; 14. copper ashes reductive agents and flux compound.
Embodiment:
Below in conjunction with accompanying drawing, the utility model embodiment is described in further detail: Fig. 1 is a kind of copper ashes rotary kiln reduction roasting device structural representation, comprises rotary kiln body l, material processing device 2, feed bin 3, dosing unit 4, feeding device 5, kiln tail 6, kiln hood 7, cooler 8, coal-burning installation 9, temperature control equipment 10, temperature measuring equipment 11, drive unit 12, bracing or strutting arrangement 13; Copper ashes reductive agent and flux compound 14 are positioned at the bottom of rotary kiln body 1; The material processing device 2 arranging is separately made up of the levigate equipment of copper ashes, reductive agent Crushing & Screening Machineries, flux Crushing & Screening Machineries; The raw material of handling well directly adds in feed bin 3; Kiln hood 7 on rotary kiln body l arranges coal-burning installation 9; Cooler 8 is positioned at the side lower part of kiln hood 7, establishes temperature control equipment 10 and temperature measuring equipment 11 on the middle part of rotary kiln body l; Dosing unit 4, feeding device 5 are positioned at charging place of the upper kiln tail 6 of rotary kiln body l; Drive unit 12 with supporting seat is positioned at the below at rotary kiln body 1 middle part; The both sides of drive unit 12 arrange respectively the bracing or strutting arrangement 13 of rotary kiln.Working process of the present utility model is: with material processing device 2 by levigate copper ashes to 0.074mm be greater than more than 60%, reductive agent coal crushing and screening to granularity 5-10mm, flux is crushed to granularity <5mm, add respectively in raw material cabin 3, through dosing unit 4 by copper ashes: reductive agent: flux is after 70-75:15-20:10-15 prepares burden in proportion, through feeding device 5 in kiln tail 6 feeds rotary kiln l, progressively complete the processes such as preheating, calcining, reduction, the calcining having reduced is discharged from kiln hood 7.Calcining is transported to magnetic separation workshop and carries out magnetic separation after cooler 8 is cooling, produces iron fine powder.The fine coal of heating use feeds by hyperchannel coal-burning installation 9 from kiln hood 7, and adjusts coal dust combustion air volume, makes coal dust incomplete combustion, and this has been avoided flame region local superheating.The CO that coal dust incomplete combustion produces moves to kiln tail with flue gas along kiln body, in kiln, be blown into combustion air by thermostatic burner blower 10 at kiln body different positions, by CO different zones burning in kiln of the fugitive constituent of this part CO and coal and iron reduction generation, reach the object of different positions temperature in Reasonable Regulation And Control kiln, reach 1100-1250 DEG C of best maturing temperatures, and high-temperature area accounts for the more than 40% of kiln body length.Both ensure the homogeneity of kiln temperature, effectively expanded again the scope of high-temperature area, reached the object of enhancing productivity.Described raw material is processed and dosing unit is arranged on before rotary kiln feeding device, and feeding device ensures that the material preparing adds in rotary kiln by charging opening by a certain amount of.Be provided with coal-burning installation at rotary kiln end, the ferrosilicate heat that reduction needs is provided.
Claims (6)
1. a copper ashes rotary kiln reduction roasting device, comprises rotary kiln body (l), material processing device (2), feed bin (3), dosing unit (4), feeding device (5), kiln tail (6), kiln hood (7), cooler (8), coal-burning installation (9), temperature measuring equipment (11), drive unit (12), bracing or strutting arrangement (13); It is characterized in that: also comprise temperature control equipment (10), temperature control equipment (10) arranges burning CO and controls burner blower and the volume adjusting apparatus of coal fugitive constituent on rotary kiln body; Cooler (8) is positioned at the side lower part of kiln hood (7); On the kiln hood (7) of rotary kiln body (l), coal-burning installation (9) is set; The material processing device (2) arranging is separately positioned at the top of feed bin (3); The discharge port that material processing device (2) below has is relative with the opening for feed of feed bin (3) top; Dosing unit (4), feeding device (5) are positioned at charging place of rotary kiln body (l) Shang Yaowei (6); The top, middle part of rotary kiln body (l) is provided with temperature control equipment (10) and temperature measuring equipment (11); Drive unit (12) with supporting seat is positioned at the below at rotary kiln middle part; The both sides that are positioned at the drive unit (12) of rotary kiln below arrange respectively the bracing or strutting arrangement (13) of rotary kiln; Copper ashes and reductive agent and flux compound (14) are positioned at the bottom of rotary kiln body.
2. a kind of copper ashes rotary kiln reduction roasting device as claimed in claim 1, is characterized in that: the burner blower of temperature control equipment (10) arranges according to the length of rotary kiln, and quantity is no less than 2.
3. a kind of copper ashes rotary kiln reduction roasting device as claimed in claim 1, is characterized in that: apart from kiln hood 15-20m; Apart from being separately installed with burner blower on the kiln body within the scope of kiln tail 20-25m.
4. a kind of copper ashes rotary kiln reduction roasting device as claimed in claim 1, is characterized in that: material processing device (2) comprises the levigate equipment of copper ashes, reductive agent Crushing & Screening Machineries, flux crushing and screening device.
5. a kind of copper ashes rotary kiln reduction roasting device as claimed in claim 1, is characterized in that: material processing device (2) and dosing unit (4) are arranged on rotary kiln (6), feeding device (5) before.
6. a kind of copper ashes rotary kiln reduction roasting device as claimed in claim 1, is characterized in that: feeding device (5) is provided with and ensures that the material preparing adds the material measuring device in rotary kiln by a certain amount of by charging opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293810.6U CN203878184U (en) | 2014-06-04 | 2014-06-04 | Reducing roasting device of copper slag rotary kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293810.6U CN203878184U (en) | 2014-06-04 | 2014-06-04 | Reducing roasting device of copper slag rotary kiln |
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| CN203878184U true CN203878184U (en) | 2014-10-15 |
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| CN201420293810.6U Active CN203878184U (en) | 2014-06-04 | 2014-06-04 | Reducing roasting device of copper slag rotary kiln |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331800A (en) * | 2015-11-27 | 2016-02-17 | 永州丰盈科技有限责任公司 | Reducing roasting process for low-grade high-iron manganese ore |
| CN105838839A (en) * | 2016-05-24 | 2016-08-10 | 江苏省冶金设计院有限公司 | Granular iron preparation method and system |
| CN109852812A (en) * | 2019-04-10 | 2019-06-07 | 华北理工大学 | A method of processing copper ashes device and processing copper ashes |
| CN112301213A (en) * | 2020-11-03 | 2021-02-02 | 内蒙古景蕾实业有限公司 | Manganese ore roasting rotary kiln system |
| CN112961954A (en) * | 2021-01-28 | 2021-06-15 | 江苏鹏飞集团股份有限公司 | Rotary kiln for producing ferronickel by directly reducing laterite-nickel ore and production method |
| CN113970103A (en) * | 2020-07-22 | 2022-01-25 | 中冶长天国际工程有限责任公司 | Embedded type kiln body air inlet dangerous waste incineration system and incineration method thereof |
-
2014
- 2014-06-04 CN CN201420293810.6U patent/CN203878184U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331800A (en) * | 2015-11-27 | 2016-02-17 | 永州丰盈科技有限责任公司 | Reducing roasting process for low-grade high-iron manganese ore |
| CN105838839A (en) * | 2016-05-24 | 2016-08-10 | 江苏省冶金设计院有限公司 | Granular iron preparation method and system |
| CN109852812A (en) * | 2019-04-10 | 2019-06-07 | 华北理工大学 | A method of processing copper ashes device and processing copper ashes |
| CN109852812B (en) * | 2019-04-10 | 2024-01-26 | 华北理工大学 | Device for treating copper slag and method for treating copper slag |
| CN113970103A (en) * | 2020-07-22 | 2022-01-25 | 中冶长天国际工程有限责任公司 | Embedded type kiln body air inlet dangerous waste incineration system and incineration method thereof |
| CN113970103B (en) * | 2020-07-22 | 2023-10-27 | 中冶长天国际工程有限责任公司 | Dangerous waste incineration system and incineration method for embedded kiln body air inlet |
| CN112301213A (en) * | 2020-11-03 | 2021-02-02 | 内蒙古景蕾实业有限公司 | Manganese ore roasting rotary kiln system |
| CN112301213B (en) * | 2020-11-03 | 2021-11-26 | 内蒙古景蕾实业有限公司 | Manganese ore roasting rotary kiln system |
| CN112961954A (en) * | 2021-01-28 | 2021-06-15 | 江苏鹏飞集团股份有限公司 | Rotary kiln for producing ferronickel by directly reducing laterite-nickel ore and production method |
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