CN204298415U - A kind of slag dry granulation and residual neat recovering system - Google Patents
A kind of slag dry granulation and residual neat recovering system Download PDFInfo
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- CN204298415U CN204298415U CN201420799697.9U CN201420799697U CN204298415U CN 204298415 U CN204298415 U CN 204298415U CN 201420799697 U CN201420799697 U CN 201420799697U CN 204298415 U CN204298415 U CN 204298415U
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- cold burden
- slag
- dry granulation
- heat recovery
- waste heat
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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
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a kind of slag dry granulation and residual neat recovering system, belongs to energy saving technology in metallurgy field.This system comprises slag dry granulation unit 1 and waste heat recovery unit 7, and described slag dry granulation unit 1 is connected by bucket conveyor 6 with waste heat recovery unit 7; Described bucket conveyor 6 above-head is provided with cold burden storehouse 2, can be discharged into cold burden to conveyer; The bottom in cold burden storehouse 2 is provided with flow regulator 3, carries out cold burden Flow-rate adjustment by it, realizes cold burden flow controlled.Native system is mixed with the slag particle after granulation mutually by cold burden, and slag particle temperature reduces, and avoids slag particle to melt again, reduces the resistant to elevated temperatures requirement of conveying machinery; Usage chain bucket conveyor carries out slag particle transhipment, facilitates dry granulation unit and waste heat recovery unit according to place actual conditions flexible arrangement; The control method of slag particle temperature is provided, makes the temperature of charge kept stable of waste heat recovery unit entrance.
Description
Technical field
The utility model belongs to energy saving technology in metallurgy field, relates to a kind of slag dry granulation and residual neat recovering system.
Background technology
Develop according to Chinese scrap iron and steel application association metallurgical slag " the steel slag comprehensive utilization basic condition in 2012 " of Working Committee's issue, within 2012, China's blast furnace slag generation is 2.2 hundred million tons.Blast furnace slag discharge temperature, more than 1400 DEG C, is the heat energy of high-quality, and calculate with each ton of slag sensible heat 1.8GJ, annual blast furnace slag can utilize heat energy 3.96 × 10
8gJ, amounts to mark 1,353 ten thousand tons, coal.However, current China blast furnace slag mainly adopts the mode of shrend to process, and this mode not only waste water resource, the heat of blast furnace slag is not also recycled utilization.In addition, also there is the problem similar with blast furnace slag in other slag such as vessel slag, electroslag, ferroalloy slag, therefore, in this technical field, proposes active demand to slag dry granulation and residual neat recovering system technology.
In the prior art; slag handling technology is divided into dry granulation and waste heat recovery two functional units mostly; but the slag particle temperature of dry granulation unit outlet is high, not only slag particle conveying equipment high temperature resistant is required high, and there is fusing again and the caked risk of plate in high temperature slag particle.How dry granulation and waste heat recovery two functional units are effectively connected, and are problem demanding prompt solutions.
Utility model content
In view of this; the purpose of this utility model is to provide a kind of slag dry granulation and residual neat recovering system; this system can solve connection problem between slag dry granulation unit and waste heat recovery unit well; realize high temperature slag particle from the outlet of dry granulation unit to the conveying of waste heat recovery unit; do not lose the heat of high temperature slag particle, facilitate dry granulation unit and waste heat recovery unit according to place actual conditions flexible arrangement simultaneously.
For achieving the above object, the utility model provides following technical scheme:
A kind of slag dry granulation and residual neat recovering system, described system comprises slag dry granulation unit 1 and waste heat recovery unit 7, and described slag dry granulation unit 1 is connected by bucket conveyor 6 with waste heat recovery unit 7; Described bucket conveyor 6 above-head is provided with cold burden storehouse 2, can be discharged into cold burden to conveyer; The bottom in cold burden storehouse 2 is provided with flow regulator 3, carries out cold burden Flow-rate adjustment by it, realizes cold burden flow controlled.Be provided with separator 8 below described waste heat recovery unit 7, the specific particle after being separated returns to cold burden storehouse 2 through cold burden loop back device 9.
Further; the exit of described slag dry granulation unit 1 is provided with slag particle temperature measuring equipment 4; slag particle temperature measuring equipment 4, for measuring slag particle temperature, according to temperature measurement result, carries out cold burden Flow-rate adjustment by the flow regulator 3 be arranged at bottom cold burden storehouse 2.
Further, described bucket conveyor 6 is provided with stay-warm case.
Further, described cold burden adopts slag particle, iron ball or steel ball.
Further, described temperature measuring equipment 4 adopts infrared temperature instrument, color comparison temperature measurement meter or abrasion resistant thermocouple.
The beneficial effects of the utility model are: the utility model is mixed with the slag particle after granulation mutually by cold burden, and slag particle temperature reduces, and avoids slag particle to melt again, reduces the resistant to elevated temperatures requirement of conveying machinery; Usage chain bucket conveyor carries out slag particle transhipment, facilitates dry granulation unit and waste heat recovery unit according to place actual conditions flexible arrangement; The control method of slag particle temperature is provided, makes the temperature of charge kept stable of waste heat recovery unit entrance.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly, the utility model provides following accompanying drawing to be described:
Fig. 1 is the structural representation of system described in the utility model;
Wherein: 1 is dry granulation unit, 2 is cold burden storehouse, and 3 is flow regulator, and 4 is temperature measuring equipment, and 5 is hopper, and 6 is bucket conveyor, and 7 is waste heat recovery unit, and 8 is separator, and 9 is cold burden loop back device, and 10 is adhesive tape conveyor
Fig. 2 is the system diagram that two groups of granulating devices share a waste-heat recovery device;
Fig. 3 is the schematic diagram of a kind of embodiment of system described in the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
Fig. 1 is the structural representation of system described in the utility model, as shown in the figure, a kind of slag dry granulation described in the utility model and residual neat recovering system, comprise slag dry granulation unit 1 and waste heat recovery unit 7, described slag dry granulation unit 1 is connected by bucket conveyor 6 with waste heat recovery unit 7; Described bucket conveyor 6 above-head is provided with cold burden storehouse 2, can be discharged into cold burden to conveyer; The bottom in cold burden storehouse 2 is provided with flow regulator 3, carries out cold burden Flow-rate adjustment by it, realizes cold burden flow controlled.Be provided with separator 8 below described waste heat recovery unit 7, the specific particle after being separated returns to cold burden storehouse 2 through cold burden loop back device 9.The exit of described slag dry granulation unit 1 is provided with slag particle temperature measuring equipment 4; slag particle temperature measuring equipment 4 is for measuring slag particle temperature; according to temperature measurement result, carry out cold burden Flow-rate adjustment by the flow regulator 3 be arranged at bottom cold burden storehouse 2.Described bucket conveyor 6 is provided with stay-warm case.
Utilize the utility model device, slag treatment flow process is as follows:
Molten slag is granulated through dry granulation unit; change the slag particle of dispersion into; solidify or half curdled appearance slag particle from dry granulation unit discharge after; carry out mixing with the cold burden of cold bin outlet and be transported to waste heat recovery unit by bucket conveyor in the lump; by controlling cold burden storehouse rate of discharge, waste heat recovery unit porch temperature of charge is made to be 800 ~ 1000 degrees Celsius.
Embodiment 1:
As shown in Figure 2, two dry granulation unit 1 carry slag particle respectively by bucket conveyor 6 to same waste heat recovery unit 7, dry granulation unit 1 and waste heat recovery unit 7 are positioned at same level, and the first horizontal feed of bucket conveyor 6 tilts upward conveying again, 20 ~ 30 degree, angle of inclination; The low temperature slag particle of greater particle size is equipped with in cold burden storehouse 2, by flow regulator 3 with suitable flow at granulation unit 1 exit and the mutual impingement mix of high temperature slag particle, fall into the hopper 5 of bucket conveyor 6; Adopt screening plant 8 to be separated by the slag particle of diameter 3 ~ 5mm after waste heat recovery unit 7, combine-return cold burden storehouse 2 through cold burden loop back device 9-adhesive tape conveyor and bucket elevator.
Embodiment 2:
As shown in Figure 3, dry granulation unit 1 and waste heat recovery unit 7 are positioned at same level, are connected by bucket conveyor 6, and the first horizontal feed of bucket conveyor 6 tilts upward conveying again, 20 ~ 30 degree, angle of inclination; Steel ball is equipped with in cold burden storehouse 2, is fallen into the hopper 5 of bucket conveyor 6 by flow regulator 3 with suitable flow, is laid in bottom hopper 5; When temperature measuring equipment 4 records slag particle 11 temperature higher than setting value, each hopper all loads multilayer steel ball 12, when recording temperature lower than setting value, reduces the steel ball charge weight of hopper; The mixture of steel ball and slag particle is after waste heat recovery unit 7 reclaims heat, temperature is down to less than 150 DEG C, concentration equipment 8 is adopted to be separated with slag particle by steel ball, steel ball combines-returns cold burden storehouse 2 through cold burden loop back device 9-adhesive tape conveyor and bucket elevator, and slag particle is carried to stockyard by adhesive tape conveyor 10.
What finally illustrate is, above preferred embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model by above preferred embodiment, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from the utility model claims limited range.
Claims (5)
1. a slag dry granulation and residual neat recovering system, it is characterized in that: described system comprises slag dry granulation unit (1) and waste heat recovery unit (7), described slag dry granulation unit (1) is connected by bucket conveyor (6) with waste heat recovery unit (7); Described bucket conveyor (6) above-head is provided with cold burden storehouse (2), can be discharged into cold burden to conveyer; The bottom in cold burden storehouse (2) is provided with flow regulator (3), carries out cold burden Flow-rate adjustment, realize cold burden flow controlled by it; Be provided with separator (8) below described waste heat recovery unit (7), the specific particle after being separated returns to cold burden storehouse (2) through cold burden loop back device (9).
2. a kind of slag dry granulation according to claim 1 and residual neat recovering system; it is characterized in that: the exit of described slag dry granulation unit (1) is provided with slag particle temperature measuring equipment (4); slag particle temperature measuring equipment (4) is for measuring slag particle temperature; according to temperature measurement result, carry out cold burden Flow-rate adjustment by the flow regulator (3) being arranged at bottom, cold burden storehouse (2).
3. a kind of slag dry granulation according to claim 1 and residual neat recovering system, is characterized in that: (6) are provided with stay-warm case to described bucket conveyor.
4. a kind of slag dry granulation according to claim 1 and residual neat recovering system, is characterized in that: described cold burden adopts slag particle, iron ball or steel ball.
5. a kind of slag dry granulation according to claim 2 and residual neat recovering system, is characterized in that: described temperature measuring equipment (4) adopts infrared temperature instrument, color comparison temperature measurement meter or abrasion resistant thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799697.9U CN204298415U (en) | 2014-12-16 | 2014-12-16 | A kind of slag dry granulation and residual neat recovering system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799697.9U CN204298415U (en) | 2014-12-16 | 2014-12-16 | A kind of slag dry granulation and residual neat recovering system |
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| CN204298415U true CN204298415U (en) | 2015-04-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404178A (en) * | 2014-12-16 | 2015-03-11 | 重庆赛迪工业炉有限公司 | Molten slag dry granulation and waste heat recovery system |
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2014
- 2014-12-16 CN CN201420799697.9U patent/CN204298415U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404178A (en) * | 2014-12-16 | 2015-03-11 | 重庆赛迪工业炉有限公司 | Molten slag dry granulation and waste heat recovery system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING SAIDI THERMAL ENVIRONMENTAL PROTECTION E Free format text: FORMER NAME: CHONGQING SAIDI INDUSTRIAL FURNACE CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 401122 Chongqing new North Road No. 1 CCID Patentee after: Chongqing CCID thermal technology environment-friendly engineering Technology Co., Ltd. Address before: 400013 Chongqing City, Yuzhong District No. 2 Steel Road, No. 1 Patentee before: Chongqing Saidi Industrial Furnace Co., Ltd. |