CN204981932U - Directly reduced iron heat retrieval and utilization device - Google Patents
Directly reduced iron heat retrieval and utilization device Download PDFInfo
- Publication number
- CN204981932U CN204981932U CN201520731488.5U CN201520731488U CN204981932U CN 204981932 U CN204981932 U CN 204981932U CN 201520731488 U CN201520731488 U CN 201520731488U CN 204981932 U CN204981932 U CN 204981932U
- Authority
- CN
- China
- Prior art keywords
- reduced iron
- direct
- communicated
- heat boiler
- set according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
- Y02P10/25—Process efficiency
Landscapes
- Tunnel Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model provides a directly reduced iron heat retrieval and utilization device, including exhaust -heat boiler, exhaust -heat boiler's water inlet and water supply equipment intercommunication, its steam ports and heat equipment intercommunication, the exhaust -heat boiler below is equipped with heating carousel, the feed inlet of heating carousel and the directly reduced iron bin outlet intercommunication of rotary hearth furnace, its discharge gate and directly reduced iron materials equipment intercommunication, have defeated feed channel in the heating carousel, the feed inlet feeds through with defeated feed channel both ends respectively with the discharge gate, defeated feed channel is equipped with a plurality of, is equipped with material way distribution device in the feed inlet, the feed inlet is through the directly reduced iron bin outlet intercommunication of sealed conveying mechanism with the rotary hearth furnace, feed inlet department is equipped with nitrogen gas spraying and blowing organ, and nitrogen gas spraying and blowing organ's nozzle stretches into in the defeated feed channel, the discharge gate is equipped with ejection of compact scraper blade through screening mechanism and directly reduced iron materials equipment intercommunication in the discharge gate, discharge gate department is equipped with gaseous surplus enthalpy exchanger, gaseous surplus enthalpy exchanger and exhaust -heat boiler's inlet channel contact.
Description
Technical field
The utility model relates to direct-reduced iron heat reclamation set.
Background technology
Finished product direct-reduced iron (DirectReductionIron in rotary hearth furnace process; DRI) outlet about 1100 DEG C; the method of current routine is cooled by cylinder water cooler; discharging from cylinder water cooler after making direct-reduced iron pelletizing temperature drop to 200 DEG C; during cooling, cylinder water cooler inside passes into nitrogen and carries out nitrogen envelope; the direct-reduced iron pelletizing of high temperature is stoped in atmosphere oxidizing reaction to occur; on the other hand in order to accelerate the body of speed of cooling and protection cylinder water cooler, ordinary method is that the shell adding water cooler at cylinder adds water cooling.Adopt the disadvantage of this technique be heat without any recovery, cause the waste of energy, next also consumes many nitrogen.Therefore, be necessary to design a kind of energy-recuperation system, to overcome above-mentioned defect.
Utility model content
The purpose of this utility model is to provide a kind of direct-reduced iron heat reclamation set.
The technical scheme that the utility model adopts for its technical problem of solution is,
Direct-reduced iron heat reclamation set, comprise waste heat boiler, the water-in of waste heat boiler is communicated with water equipment, its steam outlet is communicated with heating equipment, Heating rotary-disc is provided with below waste heat boiler, the opening for feed of Heating rotary-disc is communicated with the direct-reduced iron discharge gate of rotary hearth furnace, and its discharge port is communicated with direct-reduced iron materials equipment;
Have material conveying road in Heating rotary-disc, opening for feed and discharge port are communicated with two ends, material conveying road respectively;
Material conveying road is provided with some, is provided with material road distributor gears in opening for feed;
Opening for feed is communicated with the direct-reduced iron discharge gate of rotary hearth furnace by hermetic conveyer structure;
Opening for feed place is provided with nitrogen injection mechanism, and the nozzle of nitrogen injection mechanism stretches in material conveying road;
Discharge port is communicated with direct-reduced iron materials equipment by screening mechanism, is provided with discharging scraper plate in discharge port;
Discharge outlet is provided with gas waste-heat interchanger, and gas waste-heat interchanger contacts with the inlet channel of waste heat boiler;
Be provided with magnetism servo-electric motor water-cooling bottom Heating rotary-disc, the water outlet of magnetism servo-electric motor water-cooling is communicated with waste heat boiler;
Heating rotary-disc has transmitting gear, and transmitting gear is connected with variable-frequency motor;
Be provided with honeycomb heat transfer structure bottom waste heat boiler, its steam outlet is communicated with steam pipe system by steam pressurized device.
Rotary hearth furnace high-temperature direct reduced iron is out encased in direct-reduction iron charge road distributor gears by closed conveying device, by this divider, direct-reduction iron charge is assigned in multiple material road, concrete material road quantity is according to waste heat boiler size, the rotating speed of Heating rotary-disc and the temperature drop time of direct-reduced iron are considered, Heating rotary-disc is along a direction uniform rotation, discharge port is arranged at the place near opening for feed, by discharging scraper plate by the discharging of direct-reduced iron pelletizing to screening mechanism, discharge port arranges interchanger, intake in order to preboiler, for accelerating the heat radiation of direct-reduced iron pelletizing, nitrogen is adopted to jet at the entrance of direct-reduced iron pelletizing, the heat exchange efficiency of direct-reduced iron pelletizing can be improved, and play the effect of nitrogen envelope, to reduce the oxidizing reaction of metallic iron.Heating rotary-disc adopts metallic substance to make, bottom arranges magnetism servo-electric motor water-cooling, direct-reduced iron pelletizing and Heating rotary-disc are mainly by transmission of heat by contact, two-way cold water enters from rotating disk tunnel shaft, hot water one road exports from rotating disk tunnel shaft, high-temperature-hot-water is recycled to waste heat boiler, and to improve energy utilization efficiency, the steam that waste heat boiler produces is incorporated to steam pipe system after pressurization.The inlet temperature of Heating rotary-disc about 1100 DEG C, discharge port temperature about 250 DEG C, respectively at opening for feed and discharge port set temperature measuring element, suitably can carry out rotating speed fine setting according to the temperature of discharge port.
The utility model has the advantage of, this heat reclamation set accelerates the release of direct-reduced iron pelletizing heat by the winding-up of nitrogen, thus the temperature of gas in raising rotating disk, improve the energy absorption of boiler, the partial design of boiler on rotating disk adopts honeycomb heat transfer structure, to improve heating surface area, be conducive to promoting energy recovery efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the direct reduced iron by rotary hearth furnace energy-recuperation system that the utility model proposes.
Embodiment
The technique means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with diagram and specific embodiment, setting forth the utility model further.
As shown in Figure 1, the direct reduced iron by rotary hearth furnace energy-recuperation system that the utility model proposes comprises waste heat boiler 1, the water-in of waste heat boiler is communicated with water equipment, its steam outlet is communicated with heating equipment, Heating rotary-disc 2 is provided with below waste heat boiler, the opening for feed 3 of Heating rotary-disc is communicated with the direct-reduced iron discharge gate of rotary hearth furnace, and its discharge port 4 is communicated with direct-reduced iron materials equipment; Have material conveying road 5 in Heating rotary-disc, opening for feed and discharge port are communicated with two ends, material conveying road respectively; Material conveying road is provided with some, is provided with material road distributor gears in opening for feed; Opening for feed is communicated with the direct-reduced iron discharge gate of rotary hearth furnace by hermetic conveyer structure; Opening for feed place is provided with nitrogen injection mechanism, and the nozzle of nitrogen injection mechanism stretches in material conveying road; Discharge port is communicated with direct-reduced iron materials equipment by screening mechanism 6, is provided with discharging scraper plate in discharge port; Discharge outlet is provided with gas waste-heat interchanger 7, and gas waste-heat interchanger contacts with the inlet channel of waste heat boiler; Be provided with magnetism servo-electric motor water-cooling bottom Heating rotary-disc, the water outlet of magnetism servo-electric motor water-cooling is communicated with waste heat boiler; Heating rotary-disc has transmitting gear, and transmitting gear is connected with variable-frequency motor; Be provided with honeycomb heat transfer structure 8 bottom waste heat boiler, its steam outlet is communicated with steam pipe system by steam pressurized device 9.
Rotary hearth furnace high-temperature direct reduced iron is out encased in direct-reduction iron charge road distributor gears by closed conveying device, by this divider, direct-reduction iron charge is assigned in multiple material road, concrete material road quantity is according to waste heat boiler size, the rotating speed of Heating rotary-disc and the temperature drop time of direct-reduced iron are considered, Heating rotary-disc is along a direction uniform rotation, discharge port is arranged at the place near opening for feed, by discharging scraper plate by the discharging of direct-reduced iron pelletizing to screening mechanism, discharge port arranges interchanger, intake in order to preboiler, for accelerating the heat radiation of direct-reduced iron pelletizing, nitrogen is adopted to jet at the entrance of direct-reduced iron pelletizing, the heat exchange efficiency of direct-reduced iron pelletizing can be improved, and play the effect of nitrogen envelope, to reduce the oxidizing reaction of metallic iron.Heating rotary-disc adopts metallic substance to make, bottom arranges magnetism servo-electric motor water-cooling, direct-reduced iron pelletizing and Heating rotary-disc are mainly by transmission of heat by contact, two-way cold water enters from rotating disk tunnel shaft, hot water one road exports from rotating disk tunnel shaft, high-temperature-hot-water is recycled to waste heat boiler, and to improve energy utilization efficiency, the steam that waste heat boiler produces is incorporated to steam pipe system after pressurization.The inlet temperature of Heating rotary-disc about 1100 DEG C, discharge port temperature about 250 DEG C, respectively at opening for feed and discharge port set temperature measuring element, suitably can carry out rotating speed fine setting according to the temperature of discharge port.This heat reclamation set accelerates the release of direct-reduced iron pelletizing heat by the winding-up of nitrogen, thus the temperature of gas in raising rotating disk, improve the energy absorption of boiler, the partial design of boiler on rotating disk adopts honeycomb heat transfer structure, to improve heating surface area, be conducive to promoting energy recovery efficiency.
Heating rotary-disc material road is a narrow space, the round outer ring of Heating rotary-disc and waste heat boiler adopts water seal closed processes, flow out to outside to stop the hot gas in Heating rotary-disc, the release of direct-reduced iron pelletizing heat is accelerated by the winding-up of inlet Nitrogen gas, thus the temperature of gas in raising rotating disk, improve the energy absorption of boiler.Near the position of Heating rotary-disc, design adopts honeycomb heat transfer structure to waste heat boiler, can improve heating surface area.The metallic substance that Heating rotary-disc body adopts thermal conductivity excellent makes, arrange magnetism servo-electric motor water-cooling under Heating rotary-disc, adopt two-way water inlet, the scheme of a road water outlet is to improve cooling performance, by producing the hot water of high temperature after this process heat exchange, this hot water is incorporated in waste heat boiler.Carousel supports point, at the tangent position of circumference, has four support drive points, adopts gears meshing, and type of drive is that variable-frequency motor drives.The direct-reduced iron of Heating rotary-disc discharge port about has 200 DEG C, 300 DEG C are about had from discharge port gas out, hot gas imports to interchanger, do the energy recovery of final step, medium in interchanger is water, this water is the water inlet of waste heat boiler, and to improve the generation of steam, the final heat reclaimed converges in waste heat boiler in order to produce steam.
Above embodiment is only for illustrating technical conceive of the present utility model and feature; its object is to allow those skilled in the art understand content of the present utility model and to be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model spirit change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (10)
1. direct-reduced iron heat reclamation set, comprise waste heat boiler, the water-in of waste heat boiler is communicated with water equipment, its steam outlet is communicated with heating equipment, it is characterized in that, be provided with Heating rotary-disc below waste heat boiler, the opening for feed of Heating rotary-disc is communicated with the direct-reduced iron discharge gate of rotary hearth furnace, and its discharge port is communicated with direct-reduced iron materials equipment.
2. direct-reduced iron heat reclamation set according to claim 1, is characterized in that having material conveying road in Heating rotary-disc, and opening for feed and discharge port are communicated with two ends, material conveying road respectively.
3. direct-reduced iron heat reclamation set according to claim 2, it is characterized in that, material conveying road is provided with some, is provided with material road distributor gears in opening for feed.
4. direct-reduced iron heat reclamation set according to claim 1, is characterized in that, opening for feed is communicated with the direct-reduced iron discharge gate of rotary hearth furnace by hermetic conveyer structure.
5. direct-reduced iron heat reclamation set according to claim 1, it is characterized in that, opening for feed place is provided with nitrogen injection mechanism, and the nozzle of nitrogen injection mechanism stretches in material conveying road.
6. direct-reduced iron heat reclamation set according to claim 1, is characterized in that, discharge port is communicated with direct-reduced iron materials equipment by screening mechanism, is provided with discharging scraper plate in discharge port.
7. direct-reduced iron heat reclamation set according to claim 1, it is characterized in that, discharge outlet is provided with gas waste-heat interchanger, and gas waste-heat interchanger contacts with the inlet channel of waste heat boiler.
8. direct-reduced iron heat reclamation set according to claim 1, it is characterized in that, be provided with magnetism servo-electric motor water-cooling bottom Heating rotary-disc, the water outlet of magnetism servo-electric motor water-cooling is communicated with waste heat boiler.
9. direct-reduced iron heat reclamation set according to claim 1, it is characterized in that Heating rotary-disc has transmitting gear, transmitting gear is connected with variable-frequency motor.
10. direct-reduced iron heat reclamation set according to claim 1, is characterized in that, be provided with honeycomb heat transfer structure bottom waste heat boiler, and its steam outlet is communicated with steam pipe system by steam pressurized device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731488.5U CN204981932U (en) | 2015-09-21 | 2015-09-21 | Directly reduced iron heat retrieval and utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731488.5U CN204981932U (en) | 2015-09-21 | 2015-09-21 | Directly reduced iron heat retrieval and utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204981932U true CN204981932U (en) | 2016-01-20 |
Family
ID=55116316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520731488.5U Active CN204981932U (en) | 2015-09-21 | 2015-09-21 | Directly reduced iron heat retrieval and utilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204981932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017177893A1 (en) * | 2016-04-11 | 2017-10-19 | 深圳市鸿效节能股份有限公司 | Energy-saving pot |
-
2015
- 2015-09-21 CN CN201520731488.5U patent/CN204981932U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017177893A1 (en) * | 2016-04-11 | 2017-10-19 | 深圳市鸿效节能股份有限公司 | Energy-saving pot |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101749688B (en) | Steam recycle device for utilization and treatment of heat energy of blast furnace slag | |
| CN101914640B (en) | Dry granulation and afterheat recovery system of blast-furnace slag | |
| CN205014851U (en) | Sintering deposit shows heat reclamation device | |
| CN202329241U (en) | Calcium carbide sensible heat recycling device | |
| CN109319784B (en) | Molten calcium carbide one-step cooling granulation molding system and waste heat recovery method | |
| CN203462001U (en) | Semi-coke rotary cooling device | |
| CN104789761A (en) | Reduced iron efficient cooling and waste heat recovery device | |
| CN109182627A (en) | A kind of afterheat generating system and method using blast-furnace cement sensible heat recycling | |
| CN204981932U (en) | Directly reduced iron heat retrieval and utilization device | |
| CN203668439U (en) | Direct reduced iron cooling device for rotary hearth furnace | |
| CN101481752B (en) | Self-sealing nitrogen circulating cooling method and apparatus | |
| CN105112593A (en) | DIR energy recovery system for rotary hearth furnace | |
| CN103614497B (en) | Hot slag dry process and bootstrap system and method thereof | |
| CN101307372B (en) | Device for manufacturing and reducing crust pellet and production process | |
| CN219735949U (en) | Ternary precursor sintering and cooling integrated rotary furnace | |
| CN101561226A (en) | Energy-saving device manufactured by chemical material carrier | |
| CN203653587U (en) | System for processing hot melt slag and utilizing waste heat by dry process | |
| CN204138600U (en) | High-temperature hot is vented one's spleen recycling system | |
| CN112824819A (en) | Cooling system and method for cement clinker | |
| CN205156642U (en) | System for realize step recycle to carbide product sensible heat | |
| CN201945164U (en) | Full-automatic double-tunnel nickel monoxide resistance furnace | |
| CN201825921U (en) | In-pipe pushing type coal substance decomposing device | |
| CN201740412U (en) | Rotary kiln cooler residual-heat utilizing device | |
| CN209877658U (en) | Waste heat efficient recovery and comprehensive utilization system of rotary vertical type cooler for sintered ore | |
| CN203728857U (en) | Quenching dry type recovery device for sensible heat of crushed molten blast furnace slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170616 Address after: 6, building 11, 524076 Haitian Road, Dongshan Town, East Island, Guangdong, Zhanjiang Patentee after: Zhanjiang Baofa CCID RHF Technology Co. Ltd. Address before: 201999 Shanghai, Baoshan District Bao Yang Road, No. 889 Patentee before: Baogang Development Co., Ltd. |
|
| TR01 | Transfer of patent right |