CN108870350B - Tunnel type high-temperature slag waste heat dry-method recovery device and method - Google Patents
Tunnel type high-temperature slag waste heat dry-method recovery device and method Download PDFInfo
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- CN108870350B CN108870350B CN201810794888.9A CN201810794888A CN108870350B CN 108870350 B CN108870350 B CN 108870350B CN 201810794888 A CN201810794888 A CN 201810794888A CN 108870350 B CN108870350 B CN 108870350B
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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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- 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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- 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
A tunnel type high-temperature slag waste heat dry recovery device and a method thereof comprise a tunnel type waste heat recovery device 1, a slag car 2, a slag car traction device 3, a wheel type slag turning device 4 and a slag tank 5; high-temperature slag is poured into the slag car 2 through the slag pot 5; the slag car traction device 3 pulls the slag car 2 into the lower part of the tunnel type waste heat recovery device 1; the heat released by the high-temperature slag exchanges heat with the tunnel type waste heat recovery device 1 to generate superheated steam; when the surface of the high-temperature slag is blackened and temperature is reduced; the slag car traction device 3 pulls the slag car 2 out of the left side of the tunnel type waste heat recovery device 1; the wheel type slag turning device 4 operates to turn the high-temperature slag in the slag car 2 while the slag car 2 moves, so that the high-temperature slag in the center of a slag layer is turned to the surface to release higher heat; and the slag car 2 is pulled back into the tunnel type waste heat recovery device 1 by the slag car traction device 3 to continuously take heat.
Description
Technology neighborhood
The invention relates to a tunnel type high-temperature slag waste heat dry recovery device and method, belonging to the field of ferrous metallurgy and non-ferrous metal smelting solid slag treatment, in particular to the field of high-temperature slag waste heat dry recovery.
Technical Field
At present, the high-temperature smelting slag waste heat recovery treatment (taking steel slag as a case) at home and abroad is mostly carried out by the following modes.
A steel slag hot disintegrating process disintegrating slag backwater waste heat utilization ground method (patent No. 201010584171.5) said method comprises pouring high-temperature steel slag into hot disintegrating pool then spraying water on the hot slag, the remaining water enters the sedimentation tank through the drainage ditch and then recycles, the backwater temperature can reach about 80 deg.C at this moment, heat exchange is carried out to about 80 deg.C hot water and cold water through the specialized equipment to make the water raise the temperature; a steel slag waste heat recovery method and a system thereof (patent number 200910097365X) utilize a wheel type granulation method to granulate high-temperature liquid slag and then fall into a fluidized bed to exchange waste heat with air; a system (patent No. 201220164740.5) for generating power by utilizing waste heat of steel slag comprises a heat-seal slag tank, a steam generator and a steam generator, wherein the steam generator is used for generating wet steam containing impurities by spraying water to hot slag in the heat-seal slag tank, and converting the heat energy of the steel slag into steam energy for waste heat recovery; a comprehensive treatment system and method (patent No. 201010120678.5) for steel slag rolling crushing-afterheat pressure self-decomposition and afterheat recovery comprises crushing and cooling molten steel slag by a rolling wheel, discharging heat from molten slag, and recovering afterheat of steel slag by an air supply device, an air suction device, a heat storage chamber, a dust remover and an afterheat boiler.
The waste heat recovery method recovers the waste heat of the steel slag in a conversion mode, and the processes have the following problems: the energy conversion times are multiple, the heat energy loss is high, and the recovery rate is low; hot water, steam and hot gas containing impurities need to be purified in a filtering, dedusting and other modes and then can be used; so the phenomena of high temperature drop, low waste heat utilization rate and large equipment investment appear.
Disclosure of Invention
The invention aims to provide a tunnel type high-temperature slag waste heat dry-method recovery device which comprises a tunnel type waste heat recovery device, a slag car traction device, a wheel type slag turning device and a slag tank, wherein the tunnel type waste heat recovery device comprises a heat exchanger, a heat exchanger and a heat exchanger; the method is characterized in that: the slag car is arranged below the tunnel type waste heat recovery device, and can move below the tunnel type waste heat recovery device; the wheel type slag turning device is arranged outside the left side of the tunnel type waste heat recovery device and above the slag car; the slag car traction device is arranged outside the right side of the tunnel type waste heat recovery device. The working principle is as follows: the slag car traction device pulls the slag car to the outside of the left side of the tunnel type waste heat recovery device for standby; pouring high-temperature slag into a slag car through a slag pot; the slag car traction device pulls the slag car back to the lower part in the tunnel type waste heat recovery device; when the slag car moves, the wheel type slag turning device rotates to flatten the sharp high-temperature slag, so that the high-temperature slag is prevented from contacting with a saturated steam generator and an overheated steam generator of the tunnel type waste heat recovery device; heat released by the high-temperature slag exchanges heat with the tunnel type waste heat recovery device to generate saturated steam or superheated steam; the steam is used for (power generation, seawater desalination, heating and refrigeration); when the surface of the high-temperature slag is blackened and temperature drop is generated, the slag car traction device pulls the slag car out of the left side of the tunnel type waste heat recovery device, and the wheel type slag turning device operates to turn the high-temperature slag in the slag car while the slag car moves, so that the high-temperature slag in the center of a slag layer is turned to the surface to release higher heat; and the slag car is pulled back into the tunnel type waste heat recovery device by the slag car traction device to continuously take heat, and the wheel type slag turning device is reversed to carry out secondary slag turning on the high-temperature slag while the slag car moves.
The tunnel type waste heat recovery device comprises a saturated steam generator, an overheated steam generator, a steam-water separation tank, a steam energy storage tank, a saturated steam pipe, a saturated steam conveying pipe, a water return pipe, an overheated steam pipe, a heat preservation cover, a cross beam and a tunnel foundation; the saturated steam generator is arranged in the heat-preserving cover; the superheated steam generator is arranged below the saturated steam generator; a steam outlet of the saturated steam generator is connected with a steam inlet of the steam-water separation tank through a saturated steam pipe; a water inlet of the saturated steam generator is connected with a water outlet of the steam-water separation tank through a water return pipe; the steam inlet of the superheated steam generator is connected with the steam outlet of the steam-water separation tank through a saturated steam conveying pipe; the steam outlet of the superheated steam generator is connected with the steam inlet of the steam energy storage tank through a superheated steam pipe; the top of the heat preservation cover is connected with the cross beam; two ends of the cross beam are connected with the upper ends of the vertical walls on two sides of the tunnel foundation to finally form the tunnel type waste heat recovery device; the steam-water separation tank is arranged above the middle of the cross beam; the steam energy storage tank is arranged on one side of the tunnel type waste heat recovery device.
The slag car comprises a slag groove, slag wheels and a guide rail; the slag car wheel is positioned below the slag groove and contacts with the guide rail surface, the guide rail is arranged on the bottom surface of the tunnel foundation, and the slag car runs along the guide rail.
The slag car traction device comprises a winch (I, II), a steel wire rope (I, II) and a horizontal guide wheel (I, II); the winch I and the winch II are respectively arranged at two lateral positions outside the right side of the tunnel type waste heat recovery device; the winch I is connected with the two sides of the left end of the slag car through a steel wire rope I and a horizontal guide wheel I; the winch II is connected with the two sides of the right end of the slag car through a steel wire rope II and a horizontal guide wheel II; when the slag car moves leftwards, the winch I works, and the winch II is in a loose state. When the slag car moves rightwards, the winch II works, and the winch I is in a loose state.
The wheel type slag turning device comprises a slag turning wheel, a bearing seat, a speed reducer, a motor, a cooling device and a dust hood; the bearing blocks are respectively arranged at two sides of the shaft end of the slag turning wheel as supporting points; the speed reducer and the motor are connected with one side of the slag turning wheel shaft end through a bearing seat; the cooling device is arranged above the slag turning wheel; the dust hood is arranged above the cooling device; the motor drives the slag turning wheel to rotate through the speed reducer, and the cooling device sprays atomized water to cool the slag turning wheel; dust generated during slag turning of the slag turning wheel is sucked away by the dust removal cover, so that pollution of the dust to the surrounding environment is avoided.
The tunnel type dry method for recovering the waste heat of the high-temperature slag comprises the following steps: the slag car traction device pulls the slag car to the outside of the left side of the tunnel type waste heat recovery device for standby; pouring high-temperature slag into a slag car through a slag pot; the slag car traction device pulls the slag car into the lower part in the tunnel type waste heat recovery device; when the slag car moves, the wheel type slag turning device rotates to flatten the sharp high-temperature slag, so that the high-temperature slag is prevented from contacting with a saturated steam generator and an overheated steam generator of the tunnel type waste heat recovery device; the heat released by the high-temperature slag exchanges heat with the tunnel type waste heat recovery device, and the generated saturated steam enters the steam-water separation tank through a saturated steam pipe; saturated steam in the steam-water separation tank enters the superheated steam generator through a saturated steam conveying pipe and is reheated to generate superheated steam; the superheated steam enters the steam energy storage tank through the superheated steam pipe; finally, the superheated steam with very stable (pressure, temperature and flow rate) is supplied to a user by the steam energy storage tank; used for (power generation, seawater desalination, heating and refrigeration); when the surface of the high-temperature slag is blackened and temperature is reduced; the slag car traction device pulls the slag car out of the left side of the tunnel type waste heat recovery device; when the slag car moves, the wheel type slag turning device operates to turn the high-temperature slag in the slag car, so that the high-temperature slag in the center of a slag layer is turned to the surface to release higher heat; the slag car is pulled back into the tunnel type waste heat recovery device by the slag car traction device to continue heat extraction, and the wheel type slag turning device reversely rotates to carry out secondary slag turning on the high-temperature slag while the slag car moves; when the wheel type slag turning device rotates, the cooling device sprays atomized water to cool the slag turning wheel, a small amount of dust generated during slag turning of the slag turning wheel is sucked away by the dust hood, and pollution of the dust to the surrounding environment is avoided.
In conclusion, the invention has the characteristics of high waste heat recovery efficiency of the high-temperature slag, small heat energy loss, high environmental protection performance, no pollution, high automation degree, small investment and small occupied area.
Drawings
FIG. 1 is a front view of the present invention
FIG. 2 is a view A-A of FIG. 1
FIG. 3 is a top view of FIG. 2
FIG. 4 is a left side view of FIG. 2
Description of the main symbols of the drawings
1 tunnel type waste heat recovery device
1-1 saturated steam generator, 1-2 superheated steam generator, 1-3 steam-water separation tank, 1-4 steam energy storage tank, 1-5 saturated steam pipe, 1-6 saturated steam delivery pipe, 1-7 water return pipe, 1-8 superheated steam pipe, 1-9 heat preservation cover, 1-10 beam, 1-11 tunnel foundation;
2 slag car
2-1 slag groove, 2-2 slag wheel and 2-3 guide rail
3 slag car draw gear
3-1 winch I, 3-2 winch II, 3-3 steel wire rope I, 3-4 steel wire rope II, 3-5 horizontal guide wheel I and 3-6 horizontal guide wheel II
4-wheel type slag turning device
4-1 slag turning wheel, 4-2 bearing seat, 4-3 speed reducer, 4-4 motor, 4-5 cooling device and 4-6 dust hood
5 slag pot
Detailed description of the invention
Fig. 1, 2, 3 and 4 are schematic structural diagrams of a tunnel type high-temperature slag waste heat dry-method recovery device, which comprises a tunnel type waste heat recovery device 1, a slag car 2, a slag car traction device 3, a wheel type slag turning device 4 and a slag tank 5; the method is characterized in that: the slag car 2 is arranged below the inside of the tunnel type waste heat recovery device 1, and the slag car 2 can move below the inside of the tunnel type waste heat recovery device 1; the wheel type slag turning device 4 is arranged outside the left side of the tunnel type waste heat recovery device 1 and above the slag car 2; the slag car traction device 3 is arranged outside the right side of the tunnel type waste heat recovery device 1. The working principle is as follows: the slag car traction device 3 pulls the slag car 2 to the outside of the left side of the tunnel type waste heat recovery device 1 for standby; high-temperature slag is poured into the slag car 2 through the slag pot 5; the slag car traction device 3 pulls the slag car 2 back to the lower part in the tunnel type waste heat recovery device 1; the wheel type slag turning device 4 rotates to flatten the pointed high-temperature slag while the slag car 2 moves, so that the high-temperature slag is prevented from contacting with the saturated steam generator 1-1 and the superheated steam generator 1-2 of the tunnel type waste heat recovery device 1; heat released by the high-temperature slag exchanges heat with the tunnel type waste heat recovery device 1 to generate saturated steam or superheated steam; the steam is used for (power generation, seawater desalination, heating and refrigeration); when the surface of the high-temperature slag is blackened and temperature is reduced; the slag car traction device 3 pulls the slag car 2 out of the left side of the tunnel type waste heat recovery device 1; the wheel type slag turning device 4 operates to turn the high-temperature slag in the slag car 2 while the slag car 2 moves, so that the high-temperature slag in the center of a slag layer is turned to the surface to release higher heat; and the slag car 2 is pulled back into the tunnel type waste heat recovery device 1 by the slag car traction device 3 to continuously take heat, and the wheel type slag turning device 4 reversely rotates to carry out secondary slag turning on the high-temperature slag while the slag car 2 moves.
The tunnel type waste heat recovery device 1 comprises a saturated steam generator 1-1, an overheated steam generator 1-2, a steam-water separation tank 1-3, a steam energy storage tank 1-4, a saturated steam pipe 1-5, a saturated steam delivery pipe 1-6, a water return pipe 1-7, an overheated steam pipe 1-8, a heat preservation cover 1-9, a beam 1-10 and a tunnel foundation 1-11; the saturated steam generator 1-1 is arranged in the heat preservation cover 1-9; the superheated steam generator 1-2 is arranged below the saturated steam generator 1-1; a steam outlet of the saturated steam generator 1-1 is connected with a steam inlet of the steam-water separation tank 1-3 through a saturated steam pipe 1-5; a water inlet of the saturated steam generator 1-1 is connected with a water outlet of the steam-water separation tank 1-3 through a water return pipe 1-7; a steam inlet of the superheated steam generator 1-2 is connected with a steam outlet of the steam-water separation tank 1-3 through a saturated steam conveying pipe 1-6; a steam outlet of the superheated steam generator 1-2 is connected with a steam inlet of the steam energy storage tank 1-4 through a superheated steam pipe 1-8; the top of the heat preservation cover 1-9 is connected with the cross beam 1-10; two ends of the cross beams 1-10 are connected with the upper ends of the vertical walls on two sides of the tunnel foundation 1-11 to finally form the tunnel type waste heat recovery device 1; the steam-water separation tank 1-3 is arranged above the middle of the beam 1-10; the steam energy storage tank 1-4 is arranged at one side of the tunnel type waste heat recovery device 1.
The slag car 2 comprises a slag groove 2-1, slag car wheels 2-2 and guide rails 2-3; the slag car wheel 2-2 is positioned below the slag groove 2-1 and is in surface contact with the guide rail 2-3, the guide rail 2-3 is arranged on the bottom surface of the tunnel foundation 1-11, and the slag car 2 runs along the guide rail 2-3.
The slag car traction device 3 comprises a winch I3-1, a winch II 3-2, a steel wire rope I3-3, a steel wire rope II 3-4, a horizontal guide wheel I3-5 and a horizontal guide wheel II 3-6; the winch I3-1 and the winch II 3-2 are respectively arranged at two sides of the right side of the tunnel type waste heat recovery device 1; the winch I3-1 is connected with the two sides of the left end of the slag car 2 through a steel wire rope I3-3 and a horizontal guide wheel I3-5; the winch II 3-2 is connected with the two sides of the right end of the slag car 2 through a steel wire rope II 3-4 and a horizontal guide wheel II 3-6; when the slag car 2 moves leftwards, the winch I3-1 works, and the winch II 3-2 is in a loose state. When the slag car 2 moves rightwards, the winch II 3-2 works, and the winch I3-1 is in a loose state.
The wheel type slag turning device 4 comprises a slag turning wheel 4-1, a bearing seat 4-2, a speed reducer 4-3, a motor 4-4, a cooling device 4-5 and a dust hood 4-6; the bearing blocks 4-2 are respectively arranged at two sides of the shaft end of the slag turning wheel 4-1 as fulcrums; the speed reducer 4-3 and the motor 4-4 are connected with one side of the shaft end of the slag turning wheel 4-1 through a bearing seat 4-2; the cooling device 4-5 is arranged above the slag turning wheel 4-1; the dust hood 4-6 is arranged above the cooling device 4-5; the motor 4-4 drives the slag turning wheel 4-1 to rotate through the speed reducer 4-3; the cooling device 4-5 sprays atomized water to cool the slag turning wheel 4-1; dust generated when the slag turning wheel 4-1 turns the slag is sucked away by the dust hood 4-6 for treatment.
The tunnel type dry method for recovering the waste heat of the high-temperature slag comprises the following steps:
1. the slag car traction device 3 pulls the slag car 2 to the outside of the left side of the tunnel type waste heat recovery device 1 for standby;
2. high-temperature slag is poured into the slag car 2 through the slag pot 5;
3. the slag car traction device 3 pulls the slag car 2 back to the lower part in the tunnel type waste heat recovery device 1, the wheel type slag turning device 4 rotates to flatten the pointed high-temperature slag while the slag car 2 moves, and the high-temperature slag is prevented from contacting with the saturated steam generator 1-1 and the superheated steam generator 1-2 in the tunnel type waste heat recovery device 1;
4. the heat released by the high-temperature slag exchanges heat with a saturated steam generator 1-1 and an overheated steam generator 1-2 in a tunnel type waste heat recovery device 1, and saturated steam generated by the saturated steam generator 1-1 enters a steam-water separation tank 1-3 through a saturated steam pipe 1-5; saturated steam in the steam-water separation tank 1-3 enters the superheated steam generator 1-2 through the saturated steam conveying pipe 1-6 to be reheated to generate superheated steam; superheated steam enters the steam energy storage tank 1-4 through the superheated steam pipe 1-8, and finally superheated steam or saturated steam with stable pressure, temperature and flow is supplied to a user by the steam energy storage tank 1-4;
5. separated water in the steam-water separation tank 1-3 enters the saturated steam generator 1-1 again through the water return pipe 1-7 for recycling;
6. when the surface of the high-temperature slag is blackened and temperature drop is generated, the slag car traction device 3 pulls the slag car 2 to the outside of the left side of the tunnel type waste heat recovery device 1, and the wheel type slag turning device 4 operates to turn the high-temperature slag in the slag car 2 while the slag car 2 moves, so that the high-temperature slag in the center of a slag layer is turned to the surface to release higher heat; the slag car 2 is pulled back into the tunnel type waste heat recovery device 1 by the slag car traction device 3 to continue heat extraction, and the wheel type slag turning device 4 rotates reversely to carry out secondary slag turning on high-temperature slag while the slag car 2 moves;
7. when the wheel type slag turning device 4 rotates, the cooling device 4-5 sprays atomized water to cool the slag turning wheel 4-1, and a small amount of dust generated when the slag turning wheel 4-1 turns slag is sucked away by the dust hood 4-6, so that the pollution of the dust to the surrounding environment is avoided.
Claims (5)
1. The utility model provides a tunnel type high temperature sediment waste heat dry process recovery unit which characterized in that: comprises a tunnel type waste heat recovery device (1), a slag car (2), a slag car traction device (3), a wheel type slag turning device (4) and a slag pot (5),
the slag car (2) is arranged below the inside of the tunnel type waste heat recovery device (1), the slag car (2) can move below the inside of the tunnel type waste heat recovery device (1),
the wheel type slag turning device (4) is arranged outside the left side of the tunnel type waste heat recovery device (1) and above the slag car (2),
the slag car traction device (3) is arranged outside the right side of the tunnel type waste heat recovery device (1);
the tunnel type waste heat recovery device (1) comprises a saturated steam generator (1-1), an overheated steam generator (1-2), a steam-water separation tank (1-3), a steam energy storage tank (1-4), a saturated steam pipe (1-5), a saturated steam delivery pipe (1-6), a water return pipe (1-7), an overheated steam pipe (1-8), a heat preservation cover (1-9), a beam (1-10) and a tunnel foundation (1-11),
a saturated steam generator (1-1) is arranged in a heat-preserving cover (1-9), an overheated steam generator (1-2) is arranged below the saturated steam generator (1-1), wherein, a steam outlet of the saturated steam generator (1-1) is connected with a steam inlet of a steam-water separation tank (1-3) through a saturated steam pipe (1-5), a water inlet of the saturated steam generator (1-1) is connected with a water outlet of the steam-water separation tank (1-3) through a water return pipe (1-7), a steam inlet of the overheated steam generator (1-2) is connected with a steam outlet of the steam-water separation tank (1-3) through a saturated steam conveying pipe (1-6), a steam outlet of the overheated steam generator (1-2) is connected with a steam inlet of a steam energy storage tank (1-4) through an overheated steam pipe (1-8),
the top of the heat preservation cover (1-9) is connected with the cross beam (1-10), and two ends of the cross beam (1-10) are connected with the upper ends of the vertical walls on two sides of the tunnel foundation (1-11) to finally form the tunnel type waste heat recovery device (1); the steam-water separation tank (1-3) is arranged above the middle of the cross beam (1-10); the steam energy storage tank (1-4) is arranged on one side of the tunnel type waste heat recovery device (1);
the working principle is as follows:
the slag car traction device (3) pulls the slag car (2) to the outside of the left side of the tunnel type waste heat recovery device (1) for standby;
high-temperature slag is poured into the slag car (2) through the slag pot (5);
the slag car traction device (3) pulls the slag car (2) back to the lower part in the tunnel type waste heat recovery device (1);
the slag car (2) moves, and the wheel type slag turning device (4) rotates to flatten the sharp high-temperature slag, so that the high-temperature slag is prevented from contacting with the saturated steam generator (1-1) and the superheated steam generator (1-2) in the tunnel type waste heat recovery device (1);
the heat released by the high-temperature slag exchanges heat with the tunnel type waste heat recovery device (1) to generate saturated steam or superheated steam, and the steam is used for power generation, seawater desalination, heating, refrigeration and bathing;
when the surface of the high-temperature slag is blackened and temperature drop is generated, the slag car traction device (3) pulls the slag car (2) out of the left side of the tunnel type waste heat recovery device (1);
the wheel type slag turning device (4) operates to turn the high-temperature slag in the slag car (2) while the slag car (2) moves, so that the high-temperature slag in the center of a slag layer is turned to the surface to release higher heat;
and then the slag car (2) is pulled back into the tunnel type waste heat recovery device (1) by the slag car traction device (3) to continuously take heat, and the wheel type slag turning device reverses to turn the high-temperature slag for the second time while the slag car (2) moves.
2. The tunnel type high-temperature slag waste heat dry recovery device according to claim 1, characterized in that: the slag car (2) comprises a slag groove (2-1), moving wheels (2-2) and guide rails (2-3); the moving wheel (2-2) is positioned below the slag groove (2-1) and is in surface contact with the guide rail (2-3), the guide rail (2-3) is arranged on the bottom surface of the tunnel foundation (1-11), and the slag car (2) runs along the guide rail (2-3).
3. The tunnel type high-temperature slag waste heat dry recovery device according to claim 1, characterized in that: the slag car traction device (3) comprises a winch I (3-1), a winch II (3-2), a steel wire rope I (3-3), a steel wire rope II (3-4), a horizontal guide wheel I (3-5) and a horizontal guide wheel II (3-6); the winch I (3-1) and the winch II (3-2) are respectively arranged at two side positions outside the right side of the tunnel type waste heat recovery device (1); the winch I (3-1) is connected with the two sides of the left end of the slag car (2) through a steel wire rope I (3-3) and a horizontal guide wheel I (3-5); the winch II (3-2) is connected with the two sides of the right end of the slag car (2) through a steel wire rope II (3-4) and a horizontal guide wheel II (3-6); when the slag car (2) moves leftwards, the winch I (3-1) works, and the winch II (3-2) is in a loose state; when the slag car (2) moves rightwards, the winch II (3-2) works, and the winch I (3-1) is in a loose state.
4. The tunnel type high-temperature slag waste heat dry recovery device according to claim 1, characterized in that: the wheel type slag turning device (4) comprises a slag turning wheel (4-1), a bearing seat (4-2), a speed reducer (4-3), a motor (4-4), a cooling device (4-5) and a dust hood (4-6); the bearing blocks (4-2) are respectively arranged at two sides of the shaft end of the slag turning wheel (4-1) as fulcrums; the speed reducer (4-3) and the motor (4-4) are connected with one side of the shaft end of the slag turning wheel (4-1) through a bearing seat (4-2); the cooling device (4-5) is arranged above the slag turning wheel (4-1); the dust hood (4-6) is arranged above the cooling device (4-5); the motor (4-4) drives the slag turning wheel (4-1) to rotate through the speed reducer (4-3); the cooling device (4-5) sprays atomized water to cool the slag turning wheel (4-1); dust generated when the slag turning wheel (4-1) turns the slag is sucked away by the dust hood (4-6).
5. The tunnel type dry method for recovering the waste heat of the high-temperature slag comprises the following steps:
1) the slag car traction device (3) pulls the slag car (2) to the outside of the left side of the tunnel type waste heat recovery device (1) for standby;
2) pouring the high-temperature slag into the slag car (2) through the slag pot (5);
3) the slag car traction device (3) pulls the slag car (2) back to the lower part in the tunnel type waste heat recovery device (1), the wheel type slag turning device (4) rotates to level the sharp high-temperature slag while the slag car (2) moves, and the high-temperature slag is prevented from contacting with the superheated steam generator (1-2) and a saturated steam generator (1-1) in the tunnel type waste heat recovery device (1);
4) heat released by high-temperature slag exchanges heat with a saturated steam generator (1-1) and a superheated steam generator (1-2) in a tunnel type waste heat recovery device (1), saturated steam generated by the saturated steam generator (1-1) enters a steam-water separation tank (1-3) through a saturated steam pipe (1-5), the saturated steam in the steam-water separation tank (1-3) enters the superheated steam generator (1-2) through a saturated steam conveying pipe (1-6) to be reheated to generate superheated steam, the superheated steam enters a steam energy storage tank (1-4) through a superheated steam pipe (1-8), and finally the superheated steam or the saturated steam with stable pressure, temperature and flow is supplied to a user through the steam energy storage tank (1-4);
5) the separated water in the steam-water separation tank (1-3) enters the saturated steam generator (1-1) through the water return pipe (1-7) for recycling;
6) when the surface of the high-temperature slag is blackened and temperature drop is generated, the slag car traction device (3) pulls the slag car (2) to the outside of the left side of the tunnel type waste heat recovery device (1), and the wheel type slag turning device (4) operates to turn the high-temperature slag in the slag car (2) while the slag car (2) moves, so that the high-temperature slag in the center of a slag layer is turned to the surface to release higher heat; the slag car (2) is pulled back into the tunnel type waste heat recovery device (1) by the slag car traction device (3) to continuously take heat, and the wheel type slag turning device (4) reverses to turn over the high-temperature slag for the second time while the slag car (2) moves;
7) when the wheel type slag turning device (4) rotates, the cooling device (4-5) sprays atomized water to cool the slag turning wheel (4-1), a small amount of dust generated during slag turning of the slag turning wheel (4-1) is sucked away by the dust hood (4-6), and pollution of the dust to the surrounding environment is avoided.
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| CN201810794888.9A CN108870350B (en) | 2018-07-19 | 2018-07-19 | Tunnel type high-temperature slag waste heat dry-method recovery device and method |
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| CN111637776A (en) * | 2020-06-12 | 2020-09-08 | 东北大学 | Multi-level phase change recycling and storing device for waste heat of metallurgical high-temperature slag |
| CN112899416B (en) * | 2021-03-17 | 2023-12-26 | 中冶节能环保有限责任公司 | Method for utilizing waste heat of steel slag |
| CN114703332B (en) * | 2022-04-08 | 2023-08-08 | 北京金熔节能环保科技有限公司 | System and method for preheating metallurgical furnace burden and slag treatment by utilizing high-temperature slag |
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| CN203097979U (en) * | 2013-01-28 | 2013-07-31 | 圣火科技(河南)有限责任公司 | High-temperature cinder waste heat recovery power generation device |
| CN103484580B (en) * | 2013-09-13 | 2014-12-31 | 鞍钢集团工程技术有限公司 | Method and device for recovering molten blast furnace slag sensible heat |
| CN104533557A (en) * | 2014-11-19 | 2015-04-22 | 鞍山钢铁集团公司矿渣开发公司 | Method for generating electricity through recovering metallurgical slag afterheat |
| CN104962670B (en) * | 2015-07-14 | 2017-05-17 | 中冶南方工程技术有限公司 | Method for recovering waste heat of melting slag |
| CN107190110B (en) * | 2017-05-11 | 2019-02-26 | 山西大学 | A kind of high-temperature slag dry colling granulation residual neat recovering system and method |
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