CN202744608U - Siderite magnetizing roasting rotary kiln - Google Patents
Siderite magnetizing roasting rotary kiln Download PDFInfo
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- CN202744608U CN202744608U CN 201220387969 CN201220387969U CN202744608U CN 202744608 U CN202744608 U CN 202744608U CN 201220387969 CN201220387969 CN 201220387969 CN 201220387969 U CN201220387969 U CN 201220387969U CN 202744608 U CN202744608 U CN 202744608U
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- ring device
- slip ring
- kiln
- thermocouple slip
- temperature
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Abstract
The utility model relates to a siderite magnetizing roasting rotary kiln, which comprises a kiln head sealing cover of the rotary kiln, a tube body, a bearing device, a wheel stop device, a transmission device, temperature measuring devices, a cooling device and a kiln tail sealing cover, and is characterized in that the temperature measuring devices are a group of temperature measuring thermoelectric couple slide ring devices, a wireless emitting device and a receiving device in arrangement in the axial direction of a kiln body, the distribution gap and the number of the group of temperature measuring thermoelectric couple slide ring devices from the kiln head to the kiln tail are set according to the temperature measurement precision requirements of a preheating section, a calcination section and a cooling section of a calcination rotary kiln, the number is VII, and the VII temperature measuring thermoelectric couple slide ring devices respectively comprise a thermoelectric couple slide ring device I, a thermoelectric couple slide ring device II, a thermoelectric couple slide ring device III, a thermoelectric couple slide ring device IV, a thermoelectric couple slide ring device V, a thermoelectric couple slide ring device VI and a thermoelectric couple slide ring device VII. The siderite magnetizing roasting rotary kiln has the advantages that the temperature control of each section in the kiln can be realized, and the requirement of temperature required by the reduction reaction is ensured, so the production process requirement of the siderite magnetizing roasting is reached.
Description
Technical field
The utility model belongs to spathic iron ore magnetizing roasting technical field, particularly relates to a kind of spathic iron ore magnetizing roasting rotary kiln.
Background technology
Present economically viable reduction of iron ore roasting apparatus mainly contains shaft furnace, rotary kiln.The roasting thermal source has coal, coal gas, oil, electricity etc.The minimum granularity lower limit of shaft roasting is 8 ~ 20mm, can not realize the roasting of wholegrain level, certainly will cause the waste of resource.And rotary kiln owing to possess can be realized that the roasting of wholegrain level, good seal and magnetizing roasting effect are fine, not need to carry out the advantages such as the management of the respectively processing of thickness ore, ore and equipment is relatively simple and be widely used.But, so, when siderite is heated to 540 ~ 830 ℃, can decompose fully with regard to spathic iron ore, belong to middle low-temperature bake.Spathic iron ore enters the fierce resolver of spathic iron ore, FeCO when maturing temperature reaches 540 ℃ in roasting process
3→ FeO+ CO
2, when maturing temperature reaches more than 600 ℃, enter oxidation heat liberation district 3FeO+CO
2→ Fe
3O
4+ CO when maturing temperature reaches 830 ℃, enters Fe
2O
3The reduction zone, Fe
2O
3+ CO → 2Fe
3O
4+ CO
2Because a large amount of CO in the roasting process
2From FeCO
3Evaporate in the lattice, short texture is grown in the cavity, artificial magnet ore deposit after the roasting.And traditional rotary kiln also can't be implemented control by above-mentioned each phase temperature.
Summary of the invention
The purpose of this utility model provides a kind of can the realization each section temperature control in the kiln has been guaranteed the temperature requirement that reduction reaction is required, thereby reached technique purpose spathic iron ore magnetizing roasting rotary kiln.
The purpose of this utility model realizes in the following manner:
The utility model spathic iron ore magnetizing roasting rotary kiln, the kiln hood seal closure that comprises rotary kiln, cylindrical shell, supporting device, catch wheel device, transmission mechanism, temperature measuring equipment, refrigerating unit and kiln tail seal closure, it is characterized in that described temperature measuring equipment is for along the kiln axon to one group of temperature thermocouple slip-ring device installing and wireless launcher, receiving trap, described one group of temperature thermocouple slip-ring device from kiln hood to the kiln tail quantity and distribute spacing according to preheating section the calcination rotary kiln, it is individual that calcining section and cooling section require that to the measuring accuracy of temperature VII is set, it is respectively the thermocouple slip ring device I, the thermocouple slip ring device II, the thermocouple slip ring device III, the thermocouple slip ring device IV, the thermocouple slip ring device V, the thermocouple slip ring device VI, the thermocouple slip ring device VII
The head of the described kiln body of described thermocouple slip ring device I distance is 4.3m, the afterbody of the described kiln body of described thermocouple slip ring device VII distance is 5.7m, and described thermocouple slip ring device II, thermocouple slip ring device III, thermocouple slip ring device IV, thermocouple slip ring device V, thermocouple slip ring device VI spacing each other are 6-8m.
The control temperature of described thermocouple slip ring device I is 457 ℃, the control temperature of described thermocouple slip ring device II is 687 ℃, the control temperature of described thermocouple slip ring device III is 829 ℃, the control temperature of described thermocouple slip ring device IV is 539 ℃, the control temperature of described thermocouple slip ring device V is 260 ℃, the control temperature of described thermocouple slip ring device VI is 140 ℃, and the control temperature of described thermocouple slip ring device VII is 150 ℃.
Advantage of the present utility model:
The utility model roasting performance is good, thermal adaptation wide ranges, thermal regulation stable, because multi-point temperature measurement control being arranged, can realize each section temperature control in the kiln, guarantee the temperature requirement that reduction reaction is required, thereby reached the manufacturing technique requirent of siderite magnetizing roasting.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model.
As shown in Figure 1, spathic iron ore magnetizing roasting rotary kiln of the present utility model, the kiln hood seal closure 1 that comprises rotary kiln, cylindrical shell 3, supporting device 2, catch wheel device 4, transmission mechanism 5, temperature measuring equipment 6, refrigerating unit 7 and kiln tail seal closure 8, it is characterized in that described temperature measuring equipment 6 is for along the kiln axon to one group of temperature thermocouple slip-ring device installing and wireless launcher, receiving trap, described one group of temperature thermocouple slip-ring device from kiln hood to the kiln tail quantity and distribute spacing according to preheating section the calcination rotary kiln, it is individual that calcining section and cooling section require that to the measuring accuracy of temperature VII is set, it is respectively the thermocouple slip ring device I, the thermocouple slip ring device II, the thermocouple slip ring device III, the thermocouple slip ring device IV, the thermocouple slip ring device V, the thermocouple slip ring device VI, the thermocouple slip ring device VII
The head of the described kiln body of described thermocouple slip ring device I distance is 4.3m, the afterbody of the described kiln body of described thermocouple slip ring device VII distance is 5.7m, and described thermocouple slip ring device II, thermocouple slip ring device III, thermocouple slip ring device IV, thermocouple slip ring device V, thermocouple slip ring device VI spacing each other are 6-8m.
The control temperature of described thermocouple slip ring device I is 457 ℃, the control temperature of described thermocouple slip ring device II is 687 ℃, the control temperature of described thermocouple slip ring device III is 829 ℃, the control temperature of described thermocouple slip ring device IV is 539 ℃, the control temperature of described thermocouple slip ring device V is 260 ℃, the control temperature of described thermocouple slip ring device VI is 140 ℃, and the control temperature of described thermocouple slip ring device VII is 150 ℃.
Owing to having adopted multi-point temperature measurement control, can monitor constantly the variation of kiln temperature field.As long as it is proper that fuel is selected, adopt rotary kiln baking can realize the magnetizing roasting of low-cost wholegrain level, can satisfy the production requirement of magnetizing roasting fully.
Claims (2)
1. spathic iron ore magnetizing roasting rotary kiln, the kiln hood seal closure that comprises rotary kiln, cylindrical shell, supporting device, catch wheel device, transmission mechanism, temperature measuring equipment, refrigerating unit and kiln tail seal closure, it is characterized in that described temperature measuring equipment is for along the kiln axon to one group of temperature thermocouple slip-ring device installing and wireless launcher, receiving trap, described one group of temperature thermocouple slip-ring device from kiln hood to the kiln tail quantity and distribute spacing according to preheating section the calcination rotary kiln, it is individual that calcining section and cooling section require that to the measuring accuracy of temperature VII is set, it is respectively the thermocouple slip ring device I, the thermocouple slip ring device II, the thermocouple slip ring device III, the thermocouple slip ring device IV, the thermocouple slip ring device V, the thermocouple slip ring device VI, the thermocouple slip ring device VII
The head of the described kiln body of described thermocouple slip ring device I distance is 4.3m, the afterbody of the described kiln body of described thermocouple slip ring device VII distance is 5.7m, and described thermocouple slip ring device II, thermocouple slip ring device III, thermocouple slip ring device IV, thermocouple slip ring device V, thermocouple slip ring device VI spacing each other are 6-8m.
2. spathic iron ore magnetizing roasting rotary kiln according to claim 1, the control temperature that it is characterized in that described thermocouple slip ring device I is 457 ℃, the control temperature of described thermocouple slip ring device II is 687 ℃, the control temperature of described thermocouple slip ring device III is 829 ℃, the control temperature of described thermocouple slip ring device IV is 539 ℃, the control temperature of described thermocouple slip ring device V is 260 ℃, the control temperature of described thermocouple slip ring device VI is 140 ℃, and the control temperature of described thermocouple slip ring device VII is 150 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220387969 CN202744608U (en) | 2012-08-07 | 2012-08-07 | Siderite magnetizing roasting rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220387969 CN202744608U (en) | 2012-08-07 | 2012-08-07 | Siderite magnetizing roasting rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202744608U true CN202744608U (en) | 2013-02-20 |
Family
ID=47704037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220387969 Expired - Fee Related CN202744608U (en) | 2012-08-07 | 2012-08-07 | Siderite magnetizing roasting rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202744608U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614546A (en) * | 2013-11-25 | 2014-03-05 | 昆明钢铁集团有限责任公司 | Magnetization roasting method and device of siderite and application of device |
| CN103627890A (en) * | 2013-04-15 | 2014-03-12 | 长沙有色冶金设计研究院有限公司 | Zinc concentrate magnetizing roasting process equipment |
| WO2017107532A1 (en) * | 2015-12-21 | 2017-06-29 | 格林美股份有限公司 | Internal heating ceramic liner rotary furnace |
-
2012
- 2012-08-07 CN CN 201220387969 patent/CN202744608U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627890A (en) * | 2013-04-15 | 2014-03-12 | 长沙有色冶金设计研究院有限公司 | Zinc concentrate magnetizing roasting process equipment |
| CN103614546A (en) * | 2013-11-25 | 2014-03-05 | 昆明钢铁集团有限责任公司 | Magnetization roasting method and device of siderite and application of device |
| CN103614546B (en) * | 2013-11-25 | 2015-12-02 | 昆明钢铁集团有限责任公司 | A kind of spathic iron ore magnetizing roasting method and device thereof and application |
| WO2017107532A1 (en) * | 2015-12-21 | 2017-06-29 | 格林美股份有限公司 | Internal heating ceramic liner rotary furnace |
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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: 20130220 Termination date: 20200807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |