CN108929925B - High-temperature liquid blast furnace slag waste heat recovery device and waste heat recovery method thereof - Google Patents
High-temperature liquid blast furnace slag waste heat recovery device and waste heat recovery method thereof Download PDFInfo
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- CN108929925B CN108929925B CN201811170403.5A CN201811170403A CN108929925B CN 108929925 B CN108929925 B CN 108929925B CN 201811170403 A CN201811170403 A CN 201811170403A CN 108929925 B CN108929925 B CN 108929925B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides a high-temperature liquid blast furnace slag waste heat recovery device and a waste heat recovery method thereof, wherein the device comprises a heat exchange unit formed by connecting a plurality of heat exchange modules in series, a steam-water separator communicated with the output end of the heat exchange unit, and a soft water pressurizing and circulating unit communicated with the input end of the heat exchange unit, wherein the soft water pressurizing and circulating unit is also communicated with the steam-water separator, the heat exchange modules are arranged in a slag runner and are provided with a channel for flowing high-temperature liquid blast furnace slag and a passage for introducing soft water for heat exchange, a temperature detection instrument is arranged at the position of a water outlet of the heat exchange module heat exchange passage, and the soft water pressurizing and circulating unit comprises a booster water pump. The sensible heat of the molten slag flowing between the skimmer and the slag runner head of the high-temperature liquid blast furnace slag is recovered to the maximum extent, high-temperature high-pressure steam is obtained, and the purpose of energy conservation is achieved; the novel permanent metal structure slag groove is designed to replace a slag groove cast by refractory materials, repair is not needed, the refractory materials are saved, and the dual effects of saving energy and reducing cost are achieved.
Description
Technical Field
The invention belongs to the technical field of energy conservation and consumption reduction in the steel industry, and particularly relates to a high-temperature liquid blast furnace slag waste heat recovery device and a waste heat recovery method thereof.
Background
Blast furnace iron making is the highest process link in energy consumption of iron and steel enterprises, high-temperature liquid blast furnace slag is a by-product directly discharged from a blast furnace in the production process of the blast furnace, the temperature is up to more than 1500 ℃, a large amount of heat energy is contained, and in the movement process from a skimmer to a slag flushing ditch head of slag, the slag ditch must be repaired regularly due to the scouring and melting actions of slag on the slag ditch, so that refractory materials are consumed; meanwhile, the recovery rate of a large amount of heat contained in the slag is basically zero in the movement process from the slag skimmer to the slag flushing ditch head, and the slag does not meet the requirements of national energy-saving and emission-reducing policies and low-cost production and operation.
Disclosure of Invention
The invention provides a high-temperature liquid blast furnace slag waste heat recovery device and a waste heat recovery method thereof, which can recover the sensible heat of molten slag flowing between a skimmer and a slag runner head of high-temperature liquid blast furnace slag to the maximum extent, obtain high-temperature high-pressure steam and realize the purpose of energy conservation; the novel permanent metal structure slag groove is designed to replace a slag groove cast by refractory materials, repair is not needed, and the refractory materials are saved.
The invention provides a high-temperature liquid blast furnace slag waste heat recovery device which comprises a heat exchange unit, a steam-water separator and a soft water pressurizing and circulating unit, wherein the heat exchange unit is formed by connecting a plurality of heat exchange modules in series, the steam-water separator is communicated with the output end of the heat exchange unit, the soft water pressurizing and circulating unit is communicated with the input end of the heat exchange unit, the heat exchange module is arranged in a slag runner and is provided with a channel for flowing high-temperature liquid blast furnace slag and a passage for introducing soft water for heat exchange, a temperature detection instrument is arranged at the position of a water outlet of the heat exchange passage of the heat exchange module, and the soft water pressurizing and circulating unit.
Preferably, the heat exchange module is designed in a split structure, the bottom of the heat exchange module is fixed in the slag runner, the bottom of the heat exchange module is provided with a channel through which high-temperature liquid blast furnace slag flows, the top of the heat exchange module is connected with the bottom of the heat exchange module in an opening-closing manner, and the bottom and the top of the heat exchange module are respectively provided with a passage through which soft water is introduced for.
Preferably, the top and the bottom of the heat exchange module adopt heat exchange fins of a labyrinth flow direction of the plate heat exchanger.
Preferably, electric regulating valves are arranged on the heat exchange passages at the bottom and the top of the heat exchange module.
Preferably, still include soft water supply unit, the airtight circulation system of soft water of blast furnace body is connected to soft water supply unit's pipeline one end, and the other end communicates with catch water, be provided with electrical control valve on soft water supply unit's the pipeline.
Preferably, the soft water pressurization circulation unit further comprises a temperature detection instrument, a pressure detection instrument and a flow detection instrument, wherein the temperature detection instrument, the pressure detection instrument and the flow detection instrument are arranged on a pipeline communicated with the pressurization hot water pump and the circulation unit.
Preferably, a water level controller is arranged on the steam-water separator.
The invention also provides a method for recovering the waste heat of the high-temperature liquid blast furnace slag, wherein the high-temperature liquid blast furnace slag flows in the channel of the heat exchange module, and the method for recovering the waste heat comprises the following steps: the low-temperature circulating soft water is introduced into a heat exchange channel of the heat exchange module, the low-temperature circulating soft water is gradually heated in the process that the heat exchange unit flows gradually, the low-temperature circulating soft water forms high-temperature and high-pressure circulating soft water after heat exchange in the heat exchange unit and enters the steam-water separator, when the high-temperature and high-pressure circulating soft water enters the steam-water separator, the pressure is suddenly reduced, the temperature of the high-temperature and high-pressure circulating soft water exceeds a cost point, part of the high-temperature and high-pressure circulating soft water is vaporized to generate high-pressure steam, the high-pressure steam enters a user steam pipe network, and part of the high-temperature and high-pressure circulating soft water is condensed to form low-temperature and low-pressure circulating soft water which falls to the bottom.
Preferably, the method further comprises the step of supplementing soft water from the soft water closed circulation system of the blast furnace body into the steam-water separator by a soft water supplementing unit.
The invention has the beneficial effects that:
based on the sufficient knowledge of the high-temperature metallurgical performance of the high-temperature liquid blast furnace slag, the method comprises the following steps: the high-temperature liquid blast furnace slag belongs to high-temperature sensible heat, the high-temperature performance mutation is obvious along with the reduction of the temperature of the slag, a slag shell with good heat insulation performance can be formed on the surface of metal, and the surface of the metal is protected, so that the high-temperature liquid blast furnace slag waste heat recovery device and the waste heat recovery method thereof are invented, the sensible heat of the slag flowing between the slag skimmer and the slag runner head of the high-temperature liquid blast furnace slag is recovered to the maximum extent, high-temperature high-pressure steam is obtained, and the purpose of energy conservation is realized; the novel permanent metal structure slag groove is designed to replace a slag groove cast by refractory materials, repair is not needed, the refractory materials are saved, and the dual effects of saving energy and reducing cost are achieved. When the slag runner needs to be cleaned in the production process, the top of the heat exchange module can be lifted by mechanical equipment for cleaning, and the normal production is not affected.
Drawings
FIG. 1 is a schematic view of the overall structure of a high-temperature liquid blast furnace slag waste heat recovery device,
figure 2 is a schematic side view of a heat exchange module,
figure 3 is a schematic front view of a heat exchange module,
fig. 4 is a schematic structural view of a heat exchange fin in a heat exchange module.
The attached drawings are marked as follows:
1. the system comprises a heat exchange module, 11, a bottom, 12, a top, 13, a first electric regulating valve, 14, a heat exchange plate, 2, a steam-water separator, 21, a second electric regulating valve, 22, a third electric regulating valve, 23, a fourth electric regulating valve, 24, a water level controller, 3, a soft water pressurization circulating unit, 31, a booster water pump, 32, a temperature detecting instrument, 33, a pressure detecting instrument, 34, a flow detecting instrument, 4, a soft water supplementing unit, 41, a fifth electric regulating valve, 5 and a main control system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and should not be construed as limiting the scope of the invention.
Examples
Referring to fig. 1, the high-temperature liquid blast furnace slag waste heat recovery device of this embodiment includes the heat exchange unit who comprises four heat exchange modules 1 in series, specifically, refer to fig. 2, 3, heat exchange module 1 is split type structural design, and the major structure shape is hollow cylindric, and high-temperature liquid blast furnace slag flows in hollow passageway A promptly, and bottom 11 is fixed in the slag runner (not shown in the figure), and the high-temperature liquid blast furnace slag of this embodiment flows in the passageway A of bottom 11, for absorbing the radiant heat of high-temperature liquid blast furnace slag and keeping warm for high-temperature liquid blast furnace slag, so heat exchange module 1 of this embodiment still has top 12, and top 12 and bottom 11 open-close type are connected, and top 12 can also overturn. The heat exchange module 1 of structure is selected for use to this embodiment to and the processing preparation of high strength steel metal material, its structural strength is high, and high pressure resistance is good. High-temperature liquid blast furnace slag at about 1500 ℃ continuously flows through the heat exchange module, a layer of solid slag shell is formed at the moment when the blast furnace slag is contacted with the metal surface of the heat exchange module 1, and the thickness of the slag shell is linearly related to the temperature of the metal surface. The higher the soft water pressure, the higher the soft water temperature, the higher the metal surface temperature, and the thinner the skull thickness. The thickness of the skull can be controlled by controlling the temperature of the contact surface between the metal surface and the solid skull, and stable heat transfer and heat energy recovery are realized. The top 12 and the bottom 11 are both provided with a water inlet pipe and a water outlet pipe, taking one of the heat exchange modules 1 as an example, the top 12 is provided with a water inlet pipe a and a water outlet pipe b, the bottom 11 is provided with a water inlet pipe c and a water outlet pipe d, the water outlet pipe of the bottom 11 of the heat exchange module 1 for advanced soft water can be communicated with the water inlet pipe of the top 12 of the next heat exchange module 1 for advanced soft water, and the heat exchange units are formed in series in the mode. The water inlet pipes and the water outlet pipes at the bottom 11 and the top 12 of all the heat exchange modules 1 are respectively provided with a first electric regulating valve 13. A temperature detecting instrument (not shown in the figure) is arranged on the water outlet pipe of the bottom 11 of each heat exchange module 1. The waste heat recovery device further comprises a steam-water separator 2 communicated with the output end of the heat exchange unit, if the first electric regulating valve 13 of the embodiment is completely opened, soft water enters the steam-water separator 2 in the direction of a → b → c → d → e → f → g → h → i → j → k → l → m → n → o → p, and a second electric regulating valve 21 is arranged on a pipeline communicated with the water outlet pipe p of the steam-water separator 2. The upper part of the steam-water separator 2 is provided with a pipeline communicated with a user steam pipe network, and the pipeline is provided with a third electric regulating valve 22. Waste heat recovery device still includes the soft water pressurization circulating unit 3 with the heat transfer unit input intercommunication, soft water pressurization circulating unit 3 also communicates with catch water 2, soft water pressurization circulating unit 3 includes booster water pump 31, be provided with fourth electrical control valve 23 on the pipeline of catch water 2 and booster water pump 31 intercommunication.
Referring to fig. 4, in order to increase the heat exchange area and improve the heat exchange capability, as a preferred embodiment of this embodiment, the bottom 11 and the top 12 of the heat exchange module 1 both use heat exchange fins 14 in the labyrinth flow direction of the plate heat exchanger.
Referring to fig. 1, soft water in the heat exchange module enters the steam-water separation tank 2 to be vaporized and then forms high-pressure steam to be sent into a user steam pipe network, so that the amount of soft water is consumed after one circulation is completed at every time, as a preferred embodiment of the embodiment, the high-temperature liquid blast furnace slag waste heat recovery device further comprises a soft water supplement unit 4, one end of a pipeline of the soft water supplement unit 4 is connected with a soft water closed circulation system (not shown in the figure) of the blast furnace body, the other end of the pipeline is communicated with the steam-water separator 2, and a fifth electric control valve 41 is arranged on the pipeline of the soft water supplement unit 4.
Referring to fig. 1, in order to detect and control the temperature and pressure of the soft water entering the heat exchange module 1, as a preferred embodiment of the present embodiment, the soft water pressurizing and circulating unit 3 further includes a temperature detecting meter 32, a pressure detecting meter 33, and a flow detecting meter 34, and the temperature detecting meter 32, the pressure detecting meter 33, and the flow detecting meter 32 are disposed on a pipeline where the booster hot water pump 31 communicates with the heat exchange module 1.
Referring to fig. 1, in order to ensure stable soft water level in the steam-water separator 2, as a preferred embodiment of the present embodiment, a water level controller 24 is provided on the steam-water separator 2. When the water level is lower than the set lower limit early warning value, the fifth electric regulating valve 41 of the soft water supplementing unit 4 is opened; when the water level is higher than the set upper limit pre-warning value, the fifth electric control valve 41 of the soft water supplement unit 4 is closed.
The embodiment further includes a method for recovering waste heat of high-temperature liquid blast furnace slag, the method for recovering waste heat of the embodiment is performed by using a device for recovering waste heat of high-temperature liquid blast furnace slag shown in fig. 1 and 2, the high-temperature liquid blast furnace slag flows in a channel a of the heat exchange module 1, and the method for recovering waste heat includes: the low-temperature circulating soft water is introduced into the heat exchange channel of the heat exchange module 1, the low-temperature circulating soft water is gradually heated in the process that the heat exchange units gradually flow, and the low-temperature circulating soft water forms high-temperature and high-pressure circulating soft water after heat exchange of the heat exchange units and enters the steam-water separator 2. When high-temperature high-pressure circulating soft water enters the steam-water separator 2, the pressure is suddenly reduced, the temperature of the high-temperature high-pressure circulating soft water exceeds the boiling point, part of the high-temperature high-pressure circulating soft water is vaporized to generate high-pressure steam, the high-pressure steam enters a user steam pipe network, the pressure control of the high-pressure steam is realized by adjusting the opening degree of a third electric adjusting valve 22 of the steam-water separator 2, the high-temperature high-pressure circulating soft water is partially condensed to form low-temperature low-pressure circulating soft water, the low-temperature low-pressure circulating soft water falls at the bottom of the steam-water separator 2, and generally, about 20% of. The low-temperature and low-pressure circulating soft water enters the heat exchange unit again for recycling after being pressurized by the pressurizing water pump 31 of the soft water pressurizing and circulating unit 3, and the water pressure is increased to more than 2.5MPa by the pressurizing water pump 31 generally. The method further comprises the step of supplementing soft water into the steam-water separator 2 from the soft water closed circulation system of the blast furnace body through the soft water supplementing unit 4.
The low-temperature circulating soft water enters from a water inlet pipe a at the top 12 of the heat exchange module 1, and flows out from a water outlet pipe b to finish primary heat exchange (absorb the radiant heat of the high-temperature liquid blast furnace slag); then, circulating soft water enters the bottom 11 of the heat exchange module 1 through the water inlet pipe c, and is discharged through the water outlet pipe d after the heat of the high-temperature liquid blast furnace slag is fully absorbed through the zigzag passage, so that the countercurrent heat exchange process of the heat exchange module 1 is completed; so establish ties through the high pressure resistant hose between four heat exchange module 1, can obtain high temperature high pressure circulation soft water smoothly (temperature 400 supplyes 450 ℃), the control of its temperature can be realized through the inflow of adjusting the soft water of low temperature circulation, under the unchangeable condition of heat transfer area, the more the soft water temperature that corresponds of flow is just lower.
In this embodiment, the detection signals of the temperature detecting instrument, the temperature detecting instrument 32, the pressure detecting instrument 33 and the flow detecting instrument 34 of each heat exchange module 1, the soft water pressurizing circulation unit 3 are all input into the main control system 5, the main control system 5 outputs a control signal to control the pressure of the pressurizing water pump 31, and the opening degrees of the first electric regulating valve 13, the second electric regulating valve 21, the third electric regulating valve 22, the fourth electric regulating valve 23 and the fifth electric regulating valve 41 keep the temperature and the pressure of the whole soft water circulation within a reasonable range. Specifically, the circulation of the soft water in this embodiment is automatically controlled by the main control system 5, and when the pressure detection data deviates from the set pressure, the soft water can be adjusted by controlling the booster water pump 31; before the high-temperature and high-pressure circulating soft water enters the steam-water analyzer 2, when the water temperature deviates from the set temperature, the main control system 5 synchronously adjusts the water temperature and the water pressure through synchronously adjusting the fourth electric regulating valve 23 and the booster water pump 31. In the technical field, the detection and control technology for temperature and pressure is very mature, and therefore, the specific structure and control method of the main control system 5 are not described again. The main control system 5 of this embodiment is embedded into a solid skull and metal contact surface temperature accounting and predicting module (the module belongs to the prior art), the outlet temperature of the heat exchange module 1 connected in series is the highest temperature of the metal inner interface in the heat exchange module 1, and the temperature of the contact surface between the metal outer interface of the heat exchange module and the solid skull can be accurately calculated by the solid skull and metal contact surface temperature accounting and predicting module; similarly, the temperature of the contact surface is also the temperature of the outer surface of the solid slag shell, and the thickness of the slag shell can be accurately calculated according to the heat conductivity coefficient of the solid slag shell and the temperature of the high-temperature liquid blast furnace slag, so that the safe and continuous operation of the heat exchange module 1 is ensured.
Claims (9)
1. The utility model provides a liquid blast furnace slag waste heat recovery device of high temperature which characterized in that: include the heat transfer unit of constituteing by a plurality of heat transfer module series connection, with the catch water of heat transfer unit output intercommunication, with the soft water pressurization circulation unit of heat transfer unit input intercommunication, soft water pressurization circulation unit also communicates with the catch water, heat transfer module installs in the cinder notch, has the passageway that the liquid blast furnace slag of high temperature flows and lets in the soft water and carry out the heat transfer, the delivery port position department of heat transfer module heat transfer passageway is provided with temperature-detecting instrument, soft water pressurization circulation unit includes booster pump, catch water's upper portion has the pipeline that is linked together with user's steam pipe network.
2. The device for recovering the waste heat of the high-temperature liquid blast furnace slag according to claim 1, characterized in that: the heat exchange module is designed in a split structure, the bottom of the heat exchange module is fixed in the slag runner, the bottom of the heat exchange module is provided with a channel through which high-temperature liquid blast furnace slag flows, the top of the heat exchange module is connected with the bottom of the heat exchange module in an opening-closing manner, and the bottom and the top of the heat exchange module are respectively provided with a passage through which soft water is introduced.
3. The device for recovering the waste heat of the high-temperature liquid blast furnace slag according to claim 2, characterized in that: and heat exchange fins in the labyrinth flow direction of the plate heat exchanger are adopted at the top and the bottom of the heat exchange module.
4. The device for recovering the waste heat of the high-temperature liquid blast furnace slag according to claim 1, characterized in that: and electric regulating valves are arranged on the heat exchange passages at the bottom and the top of the heat exchange module.
5. The device for recovering the waste heat of the high-temperature liquid blast furnace slag according to claim 1, characterized in that: still include soft water supply unit, the airtight circulation system of soft water of blast furnace body is connected to soft water supply unit's pipeline one end, and the other end and catch water intercommunication, be provided with electrical control valve on soft water supply unit's the pipeline.
6. The device for recovering the waste heat of the high-temperature liquid blast furnace slag according to claim 1, characterized in that: the soft water pressurization and circulation unit further comprises a temperature detection instrument, a pressure detection instrument and a flow detection instrument, wherein the temperature detection instrument, the pressure detection instrument and the flow detection instrument are arranged on a pipeline communicated with the pressurization hot water pump and the circulation unit.
7. The device for recovering the waste heat of the high-temperature liquid blast furnace slag according to claim 1, characterized in that: and a water level controller is arranged on the steam-water separator.
8. The method for recovering the waste heat of the high-temperature liquid blast furnace slag is characterized in that the high-temperature liquid blast furnace slag flows in a channel of a heat exchange module, and the method for recovering the waste heat comprises the following steps: the low-temperature circulating soft water is introduced into a heat exchange channel of the heat exchange module, the low-temperature circulating soft water is gradually heated in the process that the heat exchange unit flows gradually, the low-temperature circulating soft water forms high-temperature and high-pressure circulating soft water after heat exchange in the heat exchange unit and enters the steam-water separator, when the high-temperature and high-pressure circulating soft water enters the steam-water separator, the pressure is suddenly reduced, the temperature of the high-temperature and high-pressure circulating soft water exceeds a cost point, part of the high-temperature and high-pressure circulating soft water is vaporized to generate high-pressure steam, the high-pressure steam enters a user steam pipe network, and part of the high-temperature and high-pressure circulating soft water is condensed to form low-temperature and low-pressure circulating soft water which falls to the bottom.
9. The method for recovering the waste heat of the high-temperature liquid blast furnace slag according to claim 8, characterized in that: the method also comprises the step of supplementing soft water into the steam-water separator from the soft water closed circulation system of the blast furnace body through the soft water supplementing unit.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201785416U (en) * | 2010-09-10 | 2011-04-06 | 中冶赛迪工程技术股份有限公司 | Water cooling cinder runner work lining |
| CN202925034U (en) * | 2012-09-06 | 2013-05-08 | 武汉都市环保工程技术股份有限公司 | Low-boiling point working medium circulating system for recovering blast-furnace cinder heat |
| CN203174121U (en) * | 2013-04-09 | 2013-09-04 | 青岛理工大学 | Rotary gas-solid heat exchange device capable of utilizing waste head of furnace slag |
| CN103882163A (en) * | 2014-02-24 | 2014-06-25 | 鞍钢集团工程技术有限公司 | Method and device for recovering sensible heat of molten blast furnace slag |
| KR101612466B1 (en) * | 2015-01-30 | 2016-04-14 | 주식회사 포스코 | Slag cooling cover and the cooling method using of it |
| CN107906971A (en) * | 2017-12-07 | 2018-04-13 | 无锡三达环保科技有限公司 | A kind of blast furnace mineral hot furnace slag cures the high, normal, basic waste heat recycling system of heat |
| CN208917224U (en) * | 2018-10-09 | 2019-05-31 | 青岛特殊钢铁有限公司 | A kind of high-temperature liquid state Blast furnace slag waste heat recovery device |
-
2018
- 2018-10-09 CN CN201811170403.5A patent/CN108929925B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201785416U (en) * | 2010-09-10 | 2011-04-06 | 中冶赛迪工程技术股份有限公司 | Water cooling cinder runner work lining |
| CN202925034U (en) * | 2012-09-06 | 2013-05-08 | 武汉都市环保工程技术股份有限公司 | Low-boiling point working medium circulating system for recovering blast-furnace cinder heat |
| CN203174121U (en) * | 2013-04-09 | 2013-09-04 | 青岛理工大学 | Rotary gas-solid heat exchange device capable of utilizing waste head of furnace slag |
| CN103882163A (en) * | 2014-02-24 | 2014-06-25 | 鞍钢集团工程技术有限公司 | Method and device for recovering sensible heat of molten blast furnace slag |
| KR101612466B1 (en) * | 2015-01-30 | 2016-04-14 | 주식회사 포스코 | Slag cooling cover and the cooling method using of it |
| CN107906971A (en) * | 2017-12-07 | 2018-04-13 | 无锡三达环保科技有限公司 | A kind of blast furnace mineral hot furnace slag cures the high, normal, basic waste heat recycling system of heat |
| CN208917224U (en) * | 2018-10-09 | 2019-05-31 | 青岛特殊钢铁有限公司 | A kind of high-temperature liquid state Blast furnace slag waste heat recovery device |
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