CN114704814A - Heat recovery system of annular hot slag gasification boiler and use method thereof - Google Patents
Heat recovery system of annular hot slag gasification boiler and use method thereof Download PDFInfo
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- CN114704814A CN114704814A CN202210361082.7A CN202210361082A CN114704814A CN 114704814 A CN114704814 A CN 114704814A CN 202210361082 A CN202210361082 A CN 202210361082A CN 114704814 A CN114704814 A CN 114704814A
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- temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/04—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot slag, hot residues, or heated blocks, e.g. iron blocks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
- F22B33/18—Combinations of steam boilers with other apparatus
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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
Abstract
The invention discloses a heat recovery system of an annular hot slag gasification boiler and a using method thereof, and relates to the technical field of energy conservation and comprehensive utilization of wastes. The annular heat recovery system of the hot slag gasification boiler comprises an annular chassis, wherein an inner track and an outer track are respectively arranged above the annular chassis, the inner track and the outer track are both annular tracks, the outer track is sleeved outside the inner track, and a gas bag, a rotary joint and a high-temperature gas outlet pipe are arranged above the central position of the inner track. According to the annular hot slag gasification boiler heat recovery system and the use method thereof, the high-temperature energy of the hot slag is recovered in a water adding and heat exchanging mode, and meanwhile, the hot slag can be continuously added under the circular motion of the scraper plate and the heat exchanging unit, so that the water resource used by the existing water spraying cooling treatment process is saved, the high-temperature heat energy in the hot slag is recovered, the production cost is reduced, and the comprehensive utilization efficiency of the energy is improved.
Description
Technical Field
The invention relates to the technical field of energy conservation and comprehensive utilization of wastes, in particular to a heat recovery system of an annular hot slag gasification boiler and a using method thereof.
Background
Along with the continuous progress of society, the use of stainless steel is more and more extensive, the yield of stainless steel is continuously improved, a large amount of ferronickel is required to be used in the production process of the stainless steel, the submerged arc furnace for producing the ferronickel is used in large amount, the laterite is subjected to the high-temperature heating operation of the submerged arc furnace, a large amount of hot slag is generated in the production process, about 500 tons of hot slag are generated every day when each submerged arc furnace works, the initial temperature of the hot slag is 1500-1600 ℃, and in the prior art, the temperature of the slag is reduced by adopting a water spraying treatment mode, so that the next process is continuously carried out.
In the prior art, the produced hot-melting slag is directly sprayed with water, a large amount of water resources are consumed, meanwhile, certain environmental pollution is caused, a large amount of heat energy in the hot-melting slag cannot be well recovered, and no feasible method for recovering the heat energy of the hot-melting slag exists in the prior art.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a heat recovery system of an annular hot slag gasification boiler and a using method thereof, and solves the problems that in the prior art, the produced hot slag is directly sprayed with water, a large amount of resources are consumed, meanwhile, certain environmental pollution is caused, and the heat energy of the hot slag cannot be well recovered.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a heat recovery system of an annular hot slag gasification boiler comprises an annular chassis, wherein an inner rail and an outer rail are respectively arranged above the annular chassis, the inner rail and the outer rail are both annular rails, the outer rail is sleeved outside the inner rail, an air outlet pipe is arranged above the central position of the inner rail, an air bag is arranged on the surface of the air outlet pipe, a gas-liquid separator is arranged in the air bag, a heat exchange unit is arranged above the annular chassis and between the inner rail and the outer rail, a scraping plate is arranged on the annular chassis, a connecting frame is arranged above the heat exchange unit, and the connecting frame and the scraping plate are both fixed on the annular chassis;
the heat exchange unit comprises a plurality of fan-shaped high-temperature gasifiers and a plane rotary support, the plane rotary support can rotate relative to an annular chassis, all the fan-shaped high-temperature gasifiers are spliced into an annular shape, a water inlet pipe is communicated below one side, far away from the plane rotary support, of each fan-shaped high-temperature gasifier, one end, far away from the fan-shaped high-temperature gasifiers, of each water inlet pipe is communicated with an air bag, an air outlet pipe is arranged on one side, close to the plane rotary support, of each fan-shaped high-temperature gasifier, one end, far away from the fan-shaped high-temperature gasifiers, of each air outlet pipe is communicated with the air bags, a moving wheel is arranged below each fan-shaped high-temperature gasifier, a driving mechanism is arranged on each moving wheel, and the moving wheels are arranged on an inner rail and an outer rail;
the bottom middle position of the plane rotary support is provided with a water inlet main pipe in a penetrating mode, the water inlet main pipe is communicated with an access pipe through a rotary joint, one end, far away from the water inlet main pipe, of the access pipe is communicated with the air bag, the air outlet pipe is arranged at the top of the plane rotary support, and the air outlet pipe is communicated with the air bag through a transition pipe.
The use method of the heat recovery system of the annular hot-melt slag gasification boiler comprises the following specific operations:
the bottom end of the water inlet main pipe is communicated with a water source, and the top end of the air outlet pipe is communicated with a steam input end of peripheral equipment for generating electricity or providing hot steam so as to finish the connection operation;
the fan-shaped high-temperature gasifier is driven to rotate on the annular chassis by the driving mechanism, high-temperature slag is continuously poured onto the fan-shaped high-temperature gasifier, water from a water source is continuously added into the fan-shaped high-temperature gasifier through the main water inlet pipe, the access pipe, the air bag and the water inlet pipe, the water in the fan-shaped high-temperature gasifier is gasified into high-temperature and high-pressure steam under the action of the high-temperature slag and is discharged to the steam input end of peripheral equipment through the air outlet pipe, the air bag, the transition pipe and the air outlet pipe, and the high-temperature steam is provided for the peripheral equipment or power generation is generated, so that heat is recovered, and during working, liquid water is gathered in the air bag and is circularly supplied to the fan-shaped high-temperature gasifier;
along with the movement of the fan-shaped high-temperature gasifier, when the fan-shaped high-temperature gasifier moves to the position below the scraper plate, slag on the fan-shaped high-temperature gasifier is separated from the fan-shaped high-temperature gasifier under the action of the scraper plate, so that a stacking space is provided for the subsequently added slag, the system can be ensured to work circularly, and solid slag hung down by the scraper plate is recovered below the annular base plate.
(III) advantageous effects
The invention provides a heat recovery system of an annular hot slag gasification boiler and a using method thereof. The method has the following beneficial effects:
(1) according to the annular hot slag gasification boiler heat recovery system and the use method thereof, the temperature in the hot slag is recovered in a water heating mode, and meanwhile, the sustainable addition of the hot slag is realized under the movement of the scraper plate and the heat exchange unit, so that the water resource used in the existing water spraying cooling process is reduced, the environmental pollution is reduced, the heat energy of the hot slag is recovered, the cost is reduced, and the economic benefit and the environmental protection are improved.
(2) According to the annular hot slag gasification boiler heat recovery system and the use method thereof, the whole device does not need to build a high tower structure in an annular moving mode of the heat exchange unit, the building cost is low, the plate body bearing high temperature is located outside, the plate body is of a simple plate body structure, the maintenance is convenient, the service life is relatively long, and the large-scale production is facilitated.
Drawings
FIG. 1 is a top view of a structure of the present invention;
FIG. 2 is a cross-sectional view at A-A of the inventive structure.
In the figure: 1. an annular chassis; 2. an inner rail; 3. an outer rail; 4. a connecting frame; 5. a heat exchange unit; 51. a drive mechanism; 52. a fan-shaped high-temperature gasifier; 53. a water inlet main pipe; 54. a water inlet pipe; 55. an air outlet pipe; 56. a moving wheel; 57. an access pipe; 58. a transition duct; 6. an air outlet pipe; 7. a scraping plate; 8. a planar rotation support; 9. slag; 10. and (4) air bags.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: an annular hot slag gasification boiler heat recovery system comprises an annular chassis 1, wherein an inner rail 2 and an outer rail 3 are respectively arranged above the annular chassis 1, the inner rail 2 and the outer rail 3 are both annular rails, the outer rail 3 is sleeved outside the inner rail 2, an air outlet pipe 6 is arranged above the central position of the inner rail 2, an air bag 10 is arranged on the surface of the air outlet pipe 6, a gas-liquid separator is arranged in the air bag 10, a heat exchange unit 5 is arranged above the annular chassis 1 and between the inner rail 2 and the outer rail 3, a scraping plate 7 is arranged on the annular chassis 1, a connecting frame 4 is arranged above the heat exchange unit 5, and the connecting frame 4 and the scraping plate 7 are both fixed on the annular chassis 1;
the heat exchange unit 5 comprises a plurality of fan-shaped high-temperature gasifiers 52 and a plane rotary support 8, the plane rotary support 8 can rotate relative to the annular chassis 1, all the fan-shaped high-temperature gasifiers 52 are spliced into an annular shape, a water inlet pipe 54 is communicated below one side, far away from the plane rotary support 8, of each fan-shaped high-temperature gasifier 52, one end, far away from the fan-shaped high-temperature gasifiers 52, of each water inlet pipe 54 is communicated with the air bag 10, an air outlet pipe 55 is arranged on one side, close to the plane rotary support 8, of each fan-shaped high-temperature gasifier 52, one end, far away from the fan-shaped high-temperature gasifiers 52, of each air outlet pipe 55 is communicated with the air bags 10, a moving wheel 56 is arranged below the fan-shaped high-temperature gasifiers 52, a driving mechanism 51 is arranged on each moving wheel 56, and the moving wheels 56 are arranged on the inner rail 2 and the outer rail 3;
the middle position of the bottom of the plane rotary support 8 is provided with a water inlet manifold 53 in a penetrating mode, the water inlet manifold 53 is communicated with an access pipe 57 through a rotary joint, one end, far away from the water inlet manifold 53, of the access pipe 57 is communicated with the air bag 10, the air outlet pipe 6 is arranged at the top of the plane rotary support 8, and the air outlet pipe 6 is communicated with the air bag 10 through a transition pipe 58.
The use method of the heat recovery system of the annular hot slag gasification boiler comprises the following specific operations:
the bottom end of the water inlet header pipe 53 is communicated with a water source, and the top end of the air outlet pipe 6 is communicated with a steam input end of peripheral equipment for generating electricity or providing hot steam so as to finish the connection operation;
the power is provided by the driving mechanism 51, the fan-shaped high-temperature gasifier 52 is enabled to rotate and move on the annular chassis 1 under the action of the moving wheel 56, the high-temperature slag 9 is continuously poured onto the fan-shaped high-temperature gasifier 52, meanwhile, water from a water source is continuously added into the fan-shaped high-temperature gasifier 52 through the water inlet main pipe 53, the access pipe 57, the air bag 10 and the water inlet pipe 54, the water in the fan-shaped high-temperature gasifier 52 is gasified into high-temperature high-pressure steam under the action of the high-temperature slag 9, and the high-temperature high-pressure steam is discharged to the steam input end of peripheral equipment through the air outlet pipe 55, the air bag 10, the transition pipe 58 and the air outlet pipe 6, so that the high-temperature steam or power generation is provided for the peripheral equipment, and therefore, the heat recovery is realized, and during the work, the liquid water can be gathered in the air bag 10 and circularly supplied to the fan-shaped high-temperature gasifier 52;
along with the movement of the fan-shaped high-temperature gasifier 52, when the fan-shaped high-temperature gasifier 52 moves to the position below the scraper 7, the slag 9 on the fan-shaped high-temperature gasifier 52 is separated from the fan-shaped high-temperature gasifier 52 under the action of the scraper 7, so that a stacking space is provided for the slag 9 added subsequently, the system can work circularly, and the solid slag hung down by the scraper 7 is recovered below the annular base plate 1.
In summary, the heat recovery system of the annular hot slag gasification boiler and the use method thereof recover the temperature of the hot slag in a water heating mode, and realize the sustainable addition of the hot slag under the movement of the scraper plate and the heat exchange unit, thereby reducing the resources used by water spraying treatment, protecting the environment, recovering the heat energy of the hot slag, reducing the cost and improving the economic benefit;
meanwhile, the whole device does not need to build a high tower structure in an annular moving mode of the heat exchange unit, the building cost is low, the plate body bearing high temperature is located outside, the device is of a simple plate body structure, the maintenance is convenient, the service life is relatively long, and the large-scale production is facilitated.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a ring type hot slag gasification boiler heat recovery system which characterized in that: comprises an annular chassis (1), an inner track (2) and an outer track (3) are respectively arranged above the annular chassis (1), the inner track (2) and the outer track (3) are both annular tracks, the outer rail (3) is sleeved outside the inner rail (2), an air outlet pipe (6) is arranged above the central position of the inner rail (2), the surface of the air outlet pipe (6) is provided with an air bag (10), the air bag (10) is internally provided with a gas-liquid separator, a heat exchange unit (5) is arranged above the annular chassis (1) and between the inner track (2) and the outer track (3), a scraping plate (7) is arranged on the annular chassis (1), a connecting frame (4) is arranged above the heat exchange unit (5), the connecting frame (4) and the scraping plate (7) are fixed on the annular chassis (1);
the heat exchange unit (5) comprises a plurality of fan-shaped high-temperature gasifiers (52) and a plane rotary support (8), the plane rotary support (8) can rotate relative to an annular chassis (1), all the fan-shaped high-temperature gasifiers (52) are spliced into an annular shape, a water inlet pipe (54) is communicated with the lower part of one side, away from the plane rotary support (8), of each fan-shaped high-temperature gasifier (52), one end, away from the fan-shaped high-temperature gasifiers (52), of each water inlet pipe (54) is communicated with a gas bag (10), a gas outlet pipe (55) is arranged on one side, close to the plane rotary support (8), of each fan-shaped high-temperature gasifier (52), one end, away from the fan-shaped high-temperature gasifiers (52), of each gas outlet pipe (55) is communicated with the gas bag (10), a moving wheel (56) is arranged below the fan-shaped high-temperature gasifiers (52), and a driving mechanism (51) is arranged on each moving wheel (56), the moving wheels (56) are arranged on the inner track (2) and the outer track (3);
the bottom middle position of plane rotating support (8) is provided with into water header pipe (53) through running through, it has access tube (57) to go into water header pipe (53) through rotary joint intercommunication, access tube (57) keep away from the one end and the gas bag (10) intercommunication of going into water header pipe (53), outlet duct (6) set up in the top of plane rotating support (8), outlet duct (6) are through transition pipe (58) and gas bag (10) intercommunication.
2. The use method of the heat recovery system of the annular hot slag gasification boiler is characterized in that: the annular hot slag gasification boiler heat recovery system comprises the annular hot slag gasification boiler heat recovery system defined in claim 1, and is operated as follows:
the bottom end of the water inlet header pipe (53) is communicated with a water source, and the top end of the air outlet pipe (6) is communicated with a steam input end of peripheral equipment for generating power or providing hot steam so as to finish the connection operation;
the driving mechanism (51) provides power, the fan-shaped high-temperature gasifier (52) rotates and moves on the annular chassis (1) under the action of the moving wheel (56), high-temperature slag (9) is continuously poured onto the fan-shaped high-temperature gasifier (52), meanwhile, water from a water source is continuously added into the fan-shaped high-temperature gasifier (52) through the water inlet main pipe (53), the access pipe (57), the air bag (10) and the water inlet pipe (54), the water in the fan-shaped high-temperature gasifier (52) is gasified into high-temperature and high-pressure steam under the action of the high-temperature slag (9), and is discharged to the steam input end of the peripheral equipment through the air outlet pipe (55), the air bag (10), the transition pipe (58) and the air outlet pipe (6) to provide high-temperature steam or generate electricity for the peripheral equipment, thereby realizing the recovery of heat, and during the work, liquid water can be gathered in the air bag (10) and circularly supplied to the fan-shaped high-temperature gasifier (52);
along with the movement of the fan-shaped high-temperature gasifier (52), when the fan-shaped high-temperature gasifier (52) moves to the position below the scraper plate (7), the slag (9) on the fan-shaped high-temperature gasifier (52) is separated from the fan-shaped high-temperature gasifier (52) under the action of the scraper plate (7), so that a stacking space is provided for the slag (9) added subsequently, the system can work circularly, and the solid slag hung down by the scraper plate (7) is recovered below the annular base plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210361082.7A CN114704814A (en) | 2022-04-07 | 2022-04-07 | Heat recovery system of annular hot slag gasification boiler and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210361082.7A CN114704814A (en) | 2022-04-07 | 2022-04-07 | Heat recovery system of annular hot slag gasification boiler and use method thereof |
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| CN114704814A true CN114704814A (en) | 2022-07-05 |
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| CN202210361082.7A Pending CN114704814A (en) | 2022-04-07 | 2022-04-07 | Heat recovery system of annular hot slag gasification boiler and use method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201501884U (en) * | 2009-08-25 | 2010-06-09 | 刘晓慧 | Steel-slag continuous cooling and heat dispelling equipment |
| CN102588933A (en) * | 2011-01-12 | 2012-07-18 | 熊天渝 | System and method for generating steam by directly utilizing sensible heat of high-temperature sintering ore material |
| CN103574567A (en) * | 2012-08-04 | 2014-02-12 | 回红 | Device for reclaiming heat energy from hot dregs |
| CN103614497A (en) * | 2013-11-15 | 2014-03-05 | 四川川润股份有限公司 | Dry method processing and waste heat utilizing system for hot molten slag and method of dry method processing and waste heat utilizing system |
| WO2017152784A1 (en) * | 2016-03-11 | 2017-09-14 | 西安交通大学 | System and method for dry centrifugal granulation of high_temperature liquid slag and exhaust heat recovery |
| CN107190110A (en) * | 2017-05-11 | 2017-09-22 | 山西大学 | A kind of high-temperature slag dry colling granulation residual neat recovering system and method |
| CN111118239A (en) * | 2019-12-04 | 2020-05-08 | 西安交通大学 | Modular natural convection boiler system for recovering waste heat of liquid slag |
| CN112113438A (en) * | 2020-08-19 | 2020-12-22 | 中冶南方都市环保工程技术股份有限公司 | High-temperature slag waste heat recycling system |
-
2022
- 2022-04-07 CN CN202210361082.7A patent/CN114704814A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201501884U (en) * | 2009-08-25 | 2010-06-09 | 刘晓慧 | Steel-slag continuous cooling and heat dispelling equipment |
| CN102588933A (en) * | 2011-01-12 | 2012-07-18 | 熊天渝 | System and method for generating steam by directly utilizing sensible heat of high-temperature sintering ore material |
| CN103574567A (en) * | 2012-08-04 | 2014-02-12 | 回红 | Device for reclaiming heat energy from hot dregs |
| CN103614497A (en) * | 2013-11-15 | 2014-03-05 | 四川川润股份有限公司 | Dry method processing and waste heat utilizing system for hot molten slag and method of dry method processing and waste heat utilizing system |
| WO2017152784A1 (en) * | 2016-03-11 | 2017-09-14 | 西安交通大学 | System and method for dry centrifugal granulation of high_temperature liquid slag and exhaust heat recovery |
| CN107190110A (en) * | 2017-05-11 | 2017-09-22 | 山西大学 | A kind of high-temperature slag dry colling granulation residual neat recovering system and method |
| CN111118239A (en) * | 2019-12-04 | 2020-05-08 | 西安交通大学 | Modular natural convection boiler system for recovering waste heat of liquid slag |
| CN112113438A (en) * | 2020-08-19 | 2020-12-22 | 中冶南方都市环保工程技术股份有限公司 | High-temperature slag waste heat recycling system |
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