CN212645391U - Device for recycling waste heat of metallurgical slag - Google Patents
Device for recycling waste heat of metallurgical slag Download PDFInfo
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- CN212645391U CN212645391U CN201922228810.3U CN201922228810U CN212645391U CN 212645391 U CN212645391 U CN 212645391U CN 201922228810 U CN201922228810 U CN 201922228810U CN 212645391 U CN212645391 U CN 212645391U
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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
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Abstract
The utility model discloses a device for metallurgical sediment waste heat recovery utilizes, include: a furnace body and a steam pocket; the furnace body is provided with an inlet of high-temperature metallurgical slag particles and an outlet of cooled metallurgical slag particles; a distributor is arranged at the inlet of the high-temperature metallurgical slag particles, and the outlet of the cooled metallurgical slag particles is provided with an impeller feeder; a superheater, an evaporator and an economizer are sequentially arranged in the furnace body along the conveying direction of the metallurgical slag particles, and the conveyed metallurgical slag particles can exchange heat with the superheater, the evaporator and the economizer; wherein, the inlet of the superheater is communicated with the steam drum; the inlet of the evaporator is communicated with the steam pocket and used for inputting water to be heated, and the outlet of the evaporator is communicated with the steam pocket and used for outputting a heated steam-water mixture; the inlet of the coal economizer is respectively communicated with the steam pocket and the demineralized water tank through a deaerator, and the outlet of the coal economizer is communicated with the steam pocket. The device of the utility model can realize the secondary recycling of the waste heat of the metallurgical slag.
Description
Technical Field
The utility model belongs to the technical field of metallurgical industry waste heat recovery, in particular to a device for metallurgical sediment waste heat recovery utilizes.
Background
The metallurgical slag is a byproduct discharged in the metal smelting process, the discharge temperature is high, and a large amount of waste heat energy is contained. For the waste heat energy of metallurgical slag, water is mostly used for direct cooling in the existing treatment process. At present, the treatment mode through water quenching not only can cause waste of water resources, but also can waste heat energy in slag particles, and also causes great burden to the environment, so that the treatment mode is not in accordance with the currently advocated energy-saving and environment-friendly idea.
In summary, a new device for secondary recycling of waste heat and heat energy of metallurgical slag is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device for metallurgical sediment waste heat recovery utilizes to solve one or more technical problem that above-mentioned existence.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a device for metallurgical sediment waste heat recovery utilizes, include: a furnace body and a steam pocket; the furnace body is provided with an inlet of high-temperature metallurgical slag particles and an outlet of cooled metallurgical slag particles; a distributor is arranged at an inlet of the high-temperature metallurgical slag particles, and an outlet of the cooled metallurgical slag particles is provided with an impeller feeder; the furnace body is internally provided with a superheater, an evaporator and an economizer in sequence along the conveying direction of the metallurgical slag particles, and the conveyed metallurgical slag particles can exchange heat with the superheater, the evaporator and the economizer;
the outlet of the superheater is merged into a steam pipe network through a steam distributing cylinder and is used for outputting steam heated to a superheated state, and the inlet of the superheater is communicated with a steam drum and is used for inputting steam to be heated; the inlet of the evaporator is communicated with the steam drum and is used for inputting water to be heated, and the outlet of the evaporator is communicated with the steam drum and is used for outputting a heated steam-water mixture; the inlet of the economizer is respectively communicated with the steam pocket and the demineralized water tank through a deaerator, and the outlet of the economizer is communicated with the steam pocket.
Further, the distributing device is a GBL6-50 type high-temperature-resistant unpowered uniform distributing device.
Further, the impeller blanking device is a YCD-16 variable-frequency speed-regulating star-shaped impeller blanking device.
Further, an outlet of the superheater is communicated with the gas cylinder through a superheater outlet pipe box; and the inlet of the superheater is communicated with the steam drum through a saturated steam inlet pipe box.
Furthermore, an inlet of the evaporator is communicated with the steam drum through an evaporator water inlet pipe box and a circulating water pump, and an outlet of the evaporator is communicated with the steam drum through an evaporator outlet header.
Further, the outlet of the economizer is communicated with the steam pocket through an economizer outlet header, and the inlet of the economizer is communicated with the deaerator through an economizer water inlet pipe box and a deaerating water pump.
Further, the demineralized water tank is provided with a demineralized water inlet and a demineralized water outlet; the desalted water outlet is communicated with the deaerator through a desalted water pump; the deaerator is communicated with the steam drum.
Further, the inlet of the high-temperature metallurgical slag particles is used for inputting the metallurgical slag particles to be subjected to waste heat recovery, and the metallurgical slag particles to be subjected to waste heat recovery are glass-state particles.
Compared with the prior art, the utility model discloses following beneficial effect has:
the device of the utility model can realize the secondary recycling of the waste heat of the metallurgical slag; extra water can not be wasted in the recovery process, heat energy of slag particles can be effectively recovered, extra benefits can be brought to a factory by generated steam, the environmental protection problem can be solved, and the method accords with the concept of energy conservation and environmental protection advocated at present.
The utility model discloses in, through adopting even distributing device, can avoid the influence that the sediment grain output fluctuation led to the fact the operating mode, can guarantee the stability of steam pressure.
The utility model discloses in, metallurgical sediment and the direct heat transfer of heat exchange tube, metallurgical sediment velocity of flow are adjusted through glassware frequency conversion under the impeller, relatively slower, and the wearing and tearing and the corruption to the heat exchange tube can be ignored.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art are briefly introduced below; it is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural diagram of an apparatus for recycling waste heat of metallurgical slag according to an embodiment of the present invention;
in fig. 1, a gas cylinder; 2. a steam drum; 3. a uniform distributor; 4. high-temperature metallurgical slag particles; 5. a water circulating pump; 6. a superheater outlet header; 7. a saturated steam inlet pipe box; 8. a superheater; 9. an evaporator outlet header; 10. an evaporator; 11. an evaporator water inlet pipe box; 12. an economizer outlet header; 13. a coal economizer; 14. a furnace body; 15. an economizer inlet pipe box; 16. cooling the metallurgical slag particles; 17. a deoxygenation water pump; 18. a deaerator; 19. a demineralized water pump; 20. a demineralized water inlet; 21. a demineralized water tank; 22. impeller blanking device.
Detailed Description
In order to make the purpose, technical effect and technical solution of the embodiments of the present invention clearer, the following description, with reference to the drawings in the embodiments of the present invention, clearly and completely describes the technical solution in the embodiments of the present invention; obviously, the described embodiments are some of the embodiments of the present invention. Based on the embodiments disclosed in the present invention, other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Referring to fig. 1, an apparatus for recycling waste heat of metallurgical slag according to an embodiment of the present invention includes: the device comprises a furnace body 14, a superheater 8, an evaporator 10, an economizer 13, a steam pocket 2, a deaerator 18, a steam distributing cylinder 1, a distributing device and an impeller blanking device 22.
When the temperature of the metallurgical slag subjected to waste heat recovery is 760-800 ℃, glass-state small particles are formed, the particles flow through the furnace body 14 from top to bottom after being transmitted, the residual heat of the metallurgical slag particles is utilized by exchanging heat with a pipeline in the furnace body 14, the slag particles enter the furnace body 14 from the top of the furnace body 14, pass through the uniform distributor 3, sequentially pass through the superheater 8, the evaporator 10 and the economizer 13, are finally collected to the bottom of the furnace body 14, are guided out through the impeller blanking device 22, enter a subsequent treatment section, and the temperature of the metallurgical slag subjected to waste heat recovery is 180-200 ℃.
The utility model discloses an in the device, over heater 8, evaporimeter 10 and economizer 13 from top to bottom arrange in proper order in the working section of furnace body 14, and constitute by single or a plurality of heat exchange tube group, the both ends of heat exchange tube are connected respectively on the water inlet header of heat exchange tube group, the water outlet header, the water inlet header passes through the distributing pipe to be connected with the distribution header, the water outlet header is connected through collecting the pipe and collecting the header.
The inlet end of the coal economizer 13 is connected with a deoxygenation water pump 17, water supply comes from a deoxygenation device 18, the outlet end of the coal economizer is connected with a steam drum 2, the steam drum 2 is connected with the inlet end of a superheater 8, the steam drum 2 is connected with a distribution header through a circulating water pump 5, and a collection header is connected with the steam drum 2.
The outlet end of the superheater 8 is merged into a steam pipe network through the steam distributing cylinder 1.
In the utility model, the slag particles are uniformly distributed in the furnace body 14 through the uniform distributor 3, and the heating surface is heated uniformly.
According to the temperature of slag particles which is 760-800 ℃, the heat exchange tube is made of high-temperature-resistant, wear-resistant and oxidation-resistant austenitic stainless steel 3Cr18Mn12Si2N with excellent performance, the composition mode of the heat exchange tube of the furnace body 14 is designed according to working conditions, the heat energy contained in metallurgical slag is efficiently recovered, and the long service life of the heat exchange tube is ensured.
The utility model discloses a waste heat recovery process includes: high-temperature metallurgical slag particles 4 enter from the top of a furnace body 14, are uniformly dispersed in the furnace body 14 through a uniform distributor 3, are collected at the bottom of the furnace body 14 through a superheater 8, an evaporator 10 and an economizer 13 in sequence, and are led out through an impeller blanking device 22 to enter a subsequent working section; the YCD-16 variable-frequency speed-regulating star-shaped impeller blanking device can adjust and change the material flow; the desalted water enters a desalted water tank 21 and enters a deaerator 18 for preheating by a desalted water pump 19; the steam enters the economizer 13 through the deoxygenation water pump 17, enters the steam drum 2 after heat exchange, then enters the evaporator 10 to be heated, a steam-water mixture is formed, steam and water are separated in the steam drum 2, the steam enters the superheater 8 to be heated to a superheated state, the steam is led out from the steam distributing cylinder 1 to be merged into a steam pipe network or used for other purposes, and the water in the steam drum 2 enters the superheater 8 to be recycled.
The utility model discloses a device can be used to realize metallurgical sediment dry process granulation waste heat recovery technology, and current blast furnace slag heat recovery adopts hot water heat transfer heating, and efficiency is lower, and receives the influence of season, and most heat energy is useless. The waste heat recovery process for the metallurgical slag dry granulation is a process for recovering waste heat by indirect contact of the metallurgical slag and a heat transfer medium under the condition of not consuming new water, the process not only can recover the waste heat of the metallurgical slag with high quality, but also does not consume slag flushing water, almost no harmful gas is discharged, the pollution to the environment caused by the metallurgical slag treatment can be reduced, the generated steam can bring benefits to factories, and the process belongs to an energy-saving and environment-friendly treatment process.
The utility model discloses an in the device, metallurgical sediment and the direct heat transfer of heat exchange tube, metallurgical sediment velocity of flow pass through the frequency conversion and adjust, relatively slowly, can ignore the wearing and tearing and the corruption of heat exchange tube. Through the uniform distributor, the influence of the fluctuation of the slag particle yield on the working condition is ensured. The stability of the steam pressure is ensured. Extra water cannot be wasted in the process, so that the heat energy of the slag particles is effectively recovered, the generated steam brings extra benefits to factories, and the problem of environmental protection is solved.
The above embodiments are only used to illustrate the technical solution of the present invention and not to limit the same, although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify or equally replace the specific embodiments of the present invention, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention is within the protection scope of the claims of the present invention.
Claims (2)
1. A device for recovering and utilizing the waste heat of metallurgical slag is characterized by comprising: a furnace body (14) and a steam drum (2);
the furnace body (14) is provided with an inlet of high-temperature metallurgical slag particles (4) and an outlet of cooled metallurgical slag particles (16); a distributor is arranged at an inlet of the high-temperature metallurgical slag particles (4), and an outlet of the cooled metallurgical slag particles (16) is provided with an impeller blanking device (22); a superheater (8), an evaporator (10) and an economizer (13) are sequentially arranged in the furnace body (14) along the conveying direction of the metallurgical slag particles, and the conveyed metallurgical slag particles can exchange heat with the superheater (8), the evaporator (10) and the economizer (13);
the outlet of the superheater (8) is merged into a steam pipe network through a steam distributing cylinder (1) and is used for outputting steam heated to a superheated state, and the inlet of the superheater (8) is communicated with the steam drum (2) and is used for inputting steam to be heated; an inlet of the evaporator (10) is communicated with the steam drum (2) and is used for inputting water to be heated, and an outlet of the evaporator (10) is communicated with the steam drum (2) and is used for outputting a heated steam-water mixture; an inlet of the economizer (13) is respectively communicated with the steam drum (2) and the demineralized water tank (21) through a deaerator (18), and an outlet of the economizer (13) is communicated with the steam drum (2);
the inlet of the high-temperature metallurgical slag particle (4) is used for inputting metallurgical slag particles to be subjected to waste heat recovery, and the metallurgical slag particles to be subjected to waste heat recovery are glass-state particles;
the distributing device is a GBL6-50 type high-temperature-resistant unpowered uniform distributing device (3);
the impeller blanking device (22) is a YCD-16 frequency-conversion speed-regulation star-shaped impeller blanking device;
the outlet of the superheater (8) is communicated with the gas distribution cylinder (1) through a superheater outlet pipe box (6); the inlet of the superheater (8) is communicated with the steam drum (2) through a saturated steam inlet pipe box (7);
an inlet of the evaporator (10) is communicated with the steam drum (2) through an evaporator water inlet pipe box (11) and a circulating water pump (5), and an outlet of the evaporator (10) is communicated with the steam drum (2) through an evaporator outlet header (9);
the outlet of the economizer (13) is communicated with the steam drum (2) through an economizer outlet header (12), and the inlet of the economizer (13) is communicated with the deaerator (18) through an economizer water inlet pipe box (15) and a deaerating water pump (17).
2. An arrangement for metallurgical slag waste heat recovery according to claim 1, characterized in that the demineralized water tank (21) is provided with a demineralized water inlet (20) and a demineralized water outlet;
the desalted water outlet is communicated with the deaerator (18) through a desalted water pump (19);
the deaerator (18) is communicated with the steam drum (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922228810.3U CN212645391U (en) | 2019-12-11 | 2019-12-11 | Device for recycling waste heat of metallurgical slag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922228810.3U CN212645391U (en) | 2019-12-11 | 2019-12-11 | Device for recycling waste heat of metallurgical slag |
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| CN212645391U true CN212645391U (en) | 2021-03-02 |
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| CN201922228810.3U Active CN212645391U (en) | 2019-12-11 | 2019-12-11 | Device for recycling waste heat of metallurgical slag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895375A (en) * | 2020-08-17 | 2020-11-06 | 北京天朗致达节能环保股份有限公司 | Metallurgical sediment waste heat recovery device |
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2019
- 2019-12-11 CN CN201922228810.3U patent/CN212645391U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895375A (en) * | 2020-08-17 | 2020-11-06 | 北京天朗致达节能环保股份有限公司 | Metallurgical sediment waste heat recovery device |
| CN111895375B (en) * | 2020-08-17 | 2023-04-07 | 北京天朗致达节能环保股份有限公司 | Metallurgical sediment waste heat recovery device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210917 Address after: Room 604, 6 / F, block B, Zhonggang international, one side of Wenjing Road, Xi'an Economic and Technological Development Zone, Shaanxi Province, 710016 Patentee after: Shaanxi Yuteng Energy Environmental Protection Technology Co.,Ltd. Address before: Room 605, block B, Zhonggang international, No.220 Wenjing Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province, 710000 Patentee before: Chen Liqun |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 604, 6 / F, block B, Zhonggang international, one side of Wenjing Road, Xi'an Economic and Technological Development Zone, Shaanxi Province, 710016 Patentee after: Shaanxi Yuteng energy and Environmental Protection Technology Co.,Ltd. Address before: Room 604, 6 / F, block B, Zhonggang international, one side of Wenjing Road, Xi'an Economic and Technological Development Zone, Shaanxi Province, 710016 Patentee before: Shaanxi Yuteng Energy Environmental Protection Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 710018 room 604, floor 6, Zhonggang International Building B, Wenjing Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee after: Shaanxi Yuteng energy and Environmental Protection Technology Co.,Ltd. Address before: Room 604, 6 / F, block B, Zhonggang international, one side of Wenjing Road, Xi'an Economic and Technological Development Zone, Shaanxi Province, 710016 Patentee before: Shaanxi Yuteng energy and Environmental Protection Technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |