CN101850222B - Mechanical granulation and heat recovery device of liquid slag - Google Patents
Mechanical granulation and heat recovery device of liquid slag Download PDFInfo
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- CN101850222B CN101850222B CN2010101592287A CN201010159228A CN101850222B CN 101850222 B CN101850222 B CN 101850222B CN 2010101592287 A CN2010101592287 A CN 2010101592287A CN 201010159228 A CN201010159228 A CN 201010159228A CN 101850222 B CN101850222 B CN 101850222B
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- slag
- granulation
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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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Abstract
The invention discloses a mechanical granulation and heat recovery device of liquid slag, which comprises a slag holding container, two granulation rollers, a driving device, a motor, a primary fan, a vertical heat exchange furnace and a secondary fan, wherein a slag inlet and a hot air outlet are arranged at the top of the slag holding container, and the two granulation rollers are horizontally separated from each other and parallel to each other; the two ends of the two granulation rollers are arranged on the slag holding container, and the two granulation rollers can rotate relative to the slag holding container; the outer surfaces of the two granulation rollers are provided with grooves, and one end of each of the two granulation rollers are respectively connected with the two output shafts of the driving device through respective couplings; the input shaft of the driving device is connected with the motor, and a cold air inlet is respectively arranged at the upper part and the lower part of the slag holding container and is connected with the primary fan; a slag outlet device is arranged at the bottom of a cone structure of the lower part of the slag holding container, and a slag inlet is arranged at the top of the vertical heat exchange furnace; an air outlet is arranged on the side wall of the upper part, and an air inlet is arranged on the side wall of the lower part; and a discharging device is arranged at the lower end, and the secondary fan is connected with the air inlet on the side wall of the lower part of the vertical heat exchange furnace.
Description
Technical field
The present invention relates to a kind of liquid slag mechanical granulation and heat reclaim unit.
Background technology
The utilization again of steel and iron industry waste residue at present is through further fine grinding after the slag granulation being used as the raw material of cement industry.Existing a kind of blast furnace liquid slag granulation processing method is handled through the grain slag facture, i.e. the stokehold water quenching.The main feature of this method is that inject high pressure water makes the slag chilling in high-temperature slag when tap cinder, thereby obtains grain slag.This method exists water consumption very big on the one hand, and the waste heat of slag can't reclaim on the other hand, and the element in the slag gets into steam and produces a large amount of pernicious gas contaminated airs simultaneously.Because the grain slag water content after handling is higher, in follow-up manufacture of cement, to it be dried in addition, therefore not only need increase drying plant, but also need to consume a large amount of energy.
Summary of the invention
The technical problem that the present invention will solve provides a kind of liquid slag mechanical granulation and heat reclaim unit, and this device not only can make liquid slag obtain granulation, and can make the heat of liquid slag obtain reclaiming.
For solving the problems of the technologies described above; A kind of liquid slag mechanical granulation provided by the invention and heat reclaim unit; It contains and contains slag container, two granulation rollers, transmission device, motor, primary air fan, vertical recuperative furnace, overfire air fan; The top of containing the slag container is that tube structure, its underpart are cone structure, and the top of containing the tube structure on slag container top is provided with slag inlet and hot-blast outlet, two granulation roller levels mutually from and parallel its two ends be separately positioned on the tube structure of containing slag container top; Two granulation rollers can rotate with respect to containing the slag container; Be equipped with groove on the outer surface of two granulation rollers, transmission device contains into axle and two shafts, and the shaft coupling that an end of two granulation rollers passes through separately respectively links to each other with two shafts of transmission device; The axle that advances of transmission device links to each other with motor; Top and the bottom of containing the slag container is respectively equipped with the cold wind import and links with primary air fan, and the bottom of containing the cone structure of slag container bottom is provided with deslagging device, and the top of vertical recuperative furnace is provided with slag import, its upper portion side wall and is provided with that air outlet, its underpart sidewall are provided with air inlet, its lower end is provided with drawing mechanism; Air inlet on overfire air fan and the vertical recuperative furnace lower sides links; Structure and one of which end empty in said two granulation rollers are are provided with water inlet and water return outlet, and its water inlet and water return outlet link with water inlet swivel joint and backwater swivel joint respectively, intake swivel joint and backwater swivel joint respectively with water-cooled but the circulatory system link.
The outside of the tube structure on said Sheng slag container top and the cone structure of bottom is equipped with shell body, this housing be provided with water inlet pipe and outlet pipe, these water inlet pipes and outlet pipe respectively with said water-cooled but the circulatory system link.
Said Sheng slag container top tube structure is provided with water atomizing nozzle, and this water atomizing nozzle is positioned at the top of said two granulation rollers.
When stating device in the use; The slag inlet of liquid slag through containing the slag container top under the self gravitation effect, flows to the granulation roller with certain rotating speed rotation in it; Because the rotation of granulation roller; Broken granulation and being dished out during liquid slag bump granulation roller, the slag of a part of broken granulation back of being dished out is further obtained granulation with the inwall bump of containing the slag container, simultaneously in this process the slag of broken granulation with carry out heat exchange from containing the cooling blast that the import of slag container cold wind gets into; Solidify when the slag of broken granulation is obtained by molten condition, these broken granulated slag of having solidified fall at last contains the slag container bottom; The slag of the broken granulation of another part and carries out heat exchange from containing the cooling blast that the import of slag container cold wind gets in flight and the process that falls, solidify when the slag of broken granulation is obtained by molten condition, drops into the bottom of containing the slag container at last; After containing cooling blast that the import of slag container cold wind gets into and liquid slag heat exchange, become high-temperature gas; These high-temperature gases are discharged from the hot-blast outlet of containing the slag container top; Be used to generate electricity or be used to improve the aspects such as temperature of blast funnace hot blast stove fuel and combustion air, thereby make the heat of liquid slag obtain recycling.Drop into the granulation slag of containing the slag container bottom; Enter into the inside of vertical recuperative furnace through its deslagging device and through the slag import of vertical recuperative furnace; The granulation slag that gets in it carries out heat exchange with the secondary wind that air inlet from vertical recuperative furnace lower sides gets into; The secondary wind that temperature raises can be discharged as thermal source from the air outlet on the vertical recuperative furnace upper portion side wall and used, thereby the heat of slag is further utilized.In sum, liquid slag mechanical granulation and heat reclaim unit not only can make liquid slag obtain granulation, and can make the heat of liquid slag obtain reclaiming.
Description of drawings
Fig. 1 is the structural representation of liquid slag mechanical granulation of the present invention and heat reclaim unit.
Fig. 2 is that the A of Fig. 1 is to structural representation.
Fig. 3 is the plan structure sketch map of Fig. 2.
1. slag inlets among the figure, 2. shell body, 3. water inlet pipe, 4. cold wind import, 5. shell body, 6. water inlet pipe, 7. outlet pipe, 8. granulation roller; 9. support, 10. cold wind import, 11. slag imports, 12. air inlets, 13. vertical recuperative furnaces, 14. deslagging devices, 15. air outlets; 16. deslagging device, 17. water inlet pipes, 18. cone structures, 19. shell bodies, 20. tube structures, 21. granulation rollers, 22. outlet pipes; 23. water atomizing nozzle, 24. outlet pipes, 25. hot-blast outlets, 26. backwater swivel joints, 27. water inlet swivel joints, 28. water inlet swivel joints, 29. backwater swivel joints; 30. shaft coupling, 31. shaft couplings, 32. shafts, 33. shafts, 34. advance axle, 35. motors, 36. transmission devices.
The specific embodiment
Among Fig. 1, Fig. 2 and Fig. 3, liquid slag mechanical granulation and heat reclaim unit contain contains slag container, granulation roller 21, granulation roller 8, transmission device 36, motor 35, primary air fan, vertical recuperative furnace 13, overfire air fan.The top of containing the slag container is that tube structure 20, its underpart are cone structure 18, and the top of containing the tube structure 20 on slag container top is provided with slag inlet 1 and hot-blast outlet 25.Granulation roller 21 leaves mutually with granulation roller 8 levels and parallel its two ends are separately positioned on the tube structure 20 of containing slag container top, and granulation roller 21 can rotate with respect to containing the slag container with granulation roller 8.Be equipped with groove on the outer surface of granulation roller 21 and granulation roller 8.Transmission device 36 contains into 34 and two shafts 32,33 of axle.Granulation roller 21 and granulation roller 8 one the ends shaft coupling 30,31 through separately respectively link to each other with two shafts 32,33 of transmission device 36, and the axle 34 of advancing of transmission device 36 links to each other with motor 35.In the present embodiment, transmission device 36, motor 35 and Sheng slag container are arranged on the support 9.The top and the bottom of containing the slag container are respectively equipped with cold wind import 4 and cold wind import 10.Cold wind import 4 all links with primary air fan with cold wind import 10, and is not shown in the figures.The bottom of containing the cone structure 18 of slag container bottom is provided with deslagging device 16.The top of vertical recuperative furnace 13 is provided with slag import 11, its upper portion side wall and is provided with that air outlet 15, its underpart sidewall are provided with air inlet 12, its lower end is provided with drawing mechanism 14.Air inlet 12 on overfire air fan and vertical recuperative furnace 13 lower sides links, and is not shown in the figures.Be the rigidity in the course of work that improves granulation roller 21 and granulation roller 8, empty structure and one of which end was provided with water inlet and water return outlet in granulation roller 21 was with granulation roller 8.Granulation roller 21 water inlets and water return outlet link with backwater swivel joint 26 with water inlet swivel joint 27 respectively, water inlet swivel joint 27 and backwater swivel joint 26 respectively with water-cooled but the circulatory system link.Granulation roller 8 water inlets and water return outlet link with backwater swivel joint 29 with water inlet swivel joint 28 respectively, water inlet swivel joint 28 and backwater swivel joint 29 respectively with water-cooled but the circulatory system link.Contain slag container rigidity at work for improving; The outside of the tube structure 20 on Sheng slag container top and the cone structure 18 of bottom is equipped with shell body; This housing be provided with water inlet pipe and outlet pipe, these water inlet pipes and outlet pipe respectively with said water-cooled but the circulatory system link.In the present embodiment, segmentation is provided with shell body 2, shell body 5, shell body 19 on the outside of the tube structure 20 on Sheng slag container top and the cone structure 18 of bottom.Shell body 2 is provided with water inlet pipe 3 and outlet pipe 24, and water inlet pipe 3 and outlet pipe 24 and the water-cooled but circulatory system link.Shell body 5 is provided with water inlet pipe 6 and outlet pipe 22, and water inlet pipe 6 and outlet pipe 22 and the water-cooled but circulatory system link.Shell body 19 is provided with water inlet pipe 17 and outlet pipe 7, and water inlet pipe 17 and outlet pipe 7 and the water-cooled but circulatory system link.For improving liquid slag granulation effect, to contain slag container top tube structure 20 and be provided with water atomizing nozzle 23, this water atomizing nozzle 23 is positioned at the top of granulation roller 21 and granulation roller 8.During work; The slag inlet 1 of liquid slag through containing the slag container top is in it; Under the self gravitation effect, flow to granulation roller 21 and granulation roller 8 with certain rotating speed rotation, as shown in Figure 1; Granulation roller 21 turns clockwise, granulation roller 8 is rotated counterclockwise; Broken granulation and being dished out when liquid slag bump granulation roller 21 or granulation roller 8, the slag of a part of broken granulation back of being dished out is further obtained granulation with the inwall bump of containing the slag container, simultaneously in this process the slag of broken granulation with carry out heat exchange from containing the import 4 of slag container cold wind with the cooling blast that cold wind import 10 gets into; Solidify when the slag of broken granulation is obtained by molten condition, these broken granulated slag of having solidified fall into the bottom of containing the slag container at last; The slag of the broken granulation of another part is in the process of flight and whereabouts; Carry out heat exchange with cooling blast from import 4 of Sheng slag container cold wind and cold wind import 10 entering; Solidify when the slag of broken granulation is obtained by molten condition, drop into the bottom of containing the slag container at last; After containing cooling blast that the import 4 of slag container cold wind and cold wind import 10 get into and liquid slag heat exchange, become high-temperature gas; These high-temperature gases are discharged from the hot-blast outlet 25 of containing the slag container top; Be used to generate electricity or be used to improve the aspects such as temperature of blast funnace hot blast stove fuel and combustion air, thereby make the heat of liquid slag obtain recycling.Drop into the granulation slag of containing the slag container bottom; Enter into the inside of vertical recuperative furnace 13 through its deslagging device 16 and through the slag import 11 of vertical recuperative furnace 13; The granulation slag that gets in it carries out heat exchange with the secondary wind that air inlet 12 from vertical recuperative furnace 13 lower sides gets into; The secondary wind that temperature raises can be discharged as thermal source from the air outlet on vertical recuperative furnace 13 upper portion side wall 15 and used, thereby the heat of slag is further utilized.
Claims (3)
1. liquid slag mechanical granulation and heat reclaim unit; It is characterized in that: it contains and contains slag container, two granulation rollers, transmission device, motor, primary air fan, vertical recuperative furnace, overfire air fan; The top of containing the slag container is that tube structure, its underpart are cone structure; The top of containing the tube structure on slag container top is provided with slag inlet and hot-blast outlet, two granulation roller levels mutually from and parallel, its two ends are separately positioned on the tube structure of containing slag container top; Two granulation rollers can rotate with respect to containing the slag container; Be equipped with groove on the outer surface of two granulation rollers, transmission device contains into axle and two shafts, and the shaft coupling that an end of two granulation rollers passes through separately respectively links to each other with two shafts of transmission device; The axle that advances of transmission device links to each other with motor; Top and the bottom of containing the slag container is respectively equipped with the cold wind import and links with primary air fan, and the bottom of containing the cone structure of slag container bottom is provided with deslagging device, and the top of vertical recuperative furnace is provided with slag import, its upper portion side wall and is provided with that air outlet, its underpart sidewall are provided with air inlet, its lower end is provided with drawing mechanism; Air inlet on overfire air fan and the vertical recuperative furnace lower sides links; Structure and one of which end empty in said two granulation rollers are are provided with water inlet and water return outlet, and its water inlet and water return outlet link with water inlet swivel joint and backwater swivel joint respectively, intake swivel joint and backwater swivel joint respectively with water-cooled but the circulatory system link.
2. liquid slag mechanical granulation according to claim 1 and heat reclaim unit; It is characterized in that: the outside of the tube structure on said Sheng slag container top and the cone structure of bottom is equipped with shell body; This housing is provided with water inlet pipe and outlet pipe, these water inlet pipes and outlet pipe respectively with said water-cooled but the circulatory system link.
3. liquid slag mechanical granulation according to claim 1 and 2 and heat reclaim unit is characterized in that: said Sheng slag container top tube structure is provided with water atomizing nozzle, and this water atomizing nozzle is positioned at the top of said two granulation rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101592287A CN101850222B (en) | 2010-04-29 | 2010-04-29 | Mechanical granulation and heat recovery device of liquid slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101592287A CN101850222B (en) | 2010-04-29 | 2010-04-29 | Mechanical granulation and heat recovery device of liquid slag |
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| Publication Number | Publication Date |
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| CN101850222A CN101850222A (en) | 2010-10-06 |
| CN101850222B true CN101850222B (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101592287A Expired - Fee Related CN101850222B (en) | 2010-04-29 | 2010-04-29 | Mechanical granulation and heat recovery device of liquid slag |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140016A (en) * | 2011-02-21 | 2011-08-03 | 重庆大学 | High-temperature liquid material granulation and heat recovery system |
| CN102424867B (en) * | 2011-12-31 | 2013-07-31 | 钢铁研究总院 | Slag granulating and waste heat recovery device |
| CN105953200B (en) * | 2016-06-07 | 2018-05-22 | 额济纳旗圆通矿业有限责任公司 | A kind of Industrial Boiler deslagging residual heat using device |
| CN108585558B (en) * | 2018-04-17 | 2023-09-12 | 北京工业大学 | High-temperature slag air-cooling granulating device |
| CN108676941A (en) * | 2018-05-08 | 2018-10-19 | 武汉钢铁有限公司 | A kind of afterheat of slags processing system and its application method |
| CN110735010A (en) * | 2019-09-10 | 2020-01-31 | 武汉市亚克流体设备有限公司 | Slag powerful thermal crushing device |
| CN111825349B (en) * | 2020-06-18 | 2021-09-07 | 西安交通大学 | Lime-calcium carbide co-production system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359434A (en) * | 1977-09-06 | 1982-11-16 | Svenskt Stal Aktiebolag | Process for granulating molten material |
| CN1858262A (en) * | 2005-04-30 | 2006-11-08 | 宝山钢铁股份有限公司 | Method for treating high viscosity metallurgical smelting slag |
| CN201669082U (en) * | 2010-04-29 | 2010-12-15 | 江苏百斯特环境工程有限公司 | Liquid-state furnace slag mechanical granulating and heat recovering device |
-
2010
- 2010-04-29 CN CN2010101592287A patent/CN101850222B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359434A (en) * | 1977-09-06 | 1982-11-16 | Svenskt Stal Aktiebolag | Process for granulating molten material |
| CN1858262A (en) * | 2005-04-30 | 2006-11-08 | 宝山钢铁股份有限公司 | Method for treating high viscosity metallurgical smelting slag |
| CN201669082U (en) * | 2010-04-29 | 2010-12-15 | 江苏百斯特环境工程有限公司 | Liquid-state furnace slag mechanical granulating and heat recovering device |
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| CN101850222A (en) | 2010-10-06 |
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