CN110863070A - Test device and test method for recovering waste heat of steel slag - Google Patents
Test device and test method for recovering waste heat of steel slag Download PDFInfo
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- CN110863070A CN110863070A CN201911248939.9A CN201911248939A CN110863070A CN 110863070 A CN110863070 A CN 110863070A CN 201911248939 A CN201911248939 A CN 201911248939A CN 110863070 A CN110863070 A CN 110863070A
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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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- 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
- C21B3/10—Slag pots; Slag cars
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/026—Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/066—Receptacle features where the slag is treated
- C21B2400/07—Receptacle features where the slag is treated open to atmosphere
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/08—Treatment of slags originating from iron or steel processes with energy recovery
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- Organic Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to a test device and a test method for recovering steel slag waste heat, wherein the test device comprises a grate type heat taking device (1) for a test, a slag tank (2), a travelling crane (3), a fan (4), an air box (5), a smoke hood (6), a flue (7), a measuring device (8) and a track (9), based on a steel slag rolling crushing-pressure heating stuffiness process and technical equipment, high-temperature blocky steel slag after rolling crushing is loaded into the grate type steel slag heat taking device (1) for the test, in the grate type steel slag heat taking device (1) for the test, direct heat exchange between air and blocky steel slag is utilized for heat taking, and waste heat recovery data are obtained by measuring the temperature, the pressure and the flow of the air heated by the steel slag. The device and the method have the advantages that the test-scale steel slag waste heat recovery is realized, and a basis is provided for the research and development of later-stage waste heat recovery equipment.
Description
Technical Field
The invention relates to a test device and a test method for recovering steel slag waste heat, and belongs to the field of steel slag waste heat recovery.
Background
About 0.12-0.14 ton of steel slag is generated per 1 ton of steel, the generation amount of steel slag in China in 2018 is about 1.1 hundred million tons, and the utilization of waste heat of the steel slag is almost 0, so that huge energy waste is caused.
The steel slag rolling crushing-waste heat self-decomposing and pressing hot disintegrating process technology realizes the continuity, the equipment and the automation of steel slag treatment for the first time in China, and the treatment process mainly comprises two steps: the high-temperature molten steel slag with the temperature of about 1400 ℃ enters a rolling crushing area, and water is pumped for cooling while the steel slag is rolled and crushed. The steel slag after being rolled, crushed and cooled is about 800 ℃; the steel slag with the temperature of about 800 ℃ enters a pressure heating stuffy tank (7), and is intermittently pumped with water and cooled in a closed environment, so that the processes of steel slag pulverization, slag and steel separation and the like are completed. In the step of pressure hot stuffiness, the steel slag can be put into a tank at a temperature of more than 300 ℃ to meet the process requirements, and the overhigh temperature not only prolongs the pressure hot stuffiness time, but also easily causes safety problems.
The temperature difference of 500 ℃ is between the technological requirements of rolling, crushing and cooling the 800 ℃ steel slag and the temperature of pressing, heating and stewing the steel slag at 300 ℃ in the tank, and the waste heat utilization potential is very high.
Therefore, the process method realizes the steel slag waste heat recovery in a test scale on the basis of the steel slag rolling crushing-waste heat self-decomposition and pressing hot-disintegration process technology, and provides a basis for the research and development of later-stage waste heat recovery equipment.
Disclosure of Invention
In order to solve the technical problems, the invention provides a test device and a test method for recovering steel slag waste heat, wherein the test device comprises a grate type heat taking device for test, a slag tank, a travelling crane, a fan, a bellows, a smoke hood, a flue, a measuring device and a track, based on a steel slag rolling crushing-pressure hot smoldering process and technical equipment, high-temperature blocky steel slag after rolling crushing is loaded into a grate cooling type steel slag heat taking device for test, in the grate cooling type steel slag heat taking device for test, direct heat exchange between air and blocky steel slag is utilized for heat taking, and waste heat recovery data are obtained by measuring the temperature, the pressure and the flow of the air heated by the steel slag. The device and the method have the advantages that the test-scale steel slag waste heat recovery is realized, and a basis is provided for the research and development of later-stage waste heat recovery equipment.
The invention relates to a test device for recovering waste heat of steel slag, which comprises a grate type heat taking device (1) for a test, a slag tank (2), a travelling crane (3), a fan (4), an air box (5), a smoke hood (6), a flue (7), a measuring device (8) and a track (9); the rail (9) is provided with a first station, a second station and a third station, the second station is positioned at one end of the rail (9), the third station is positioned at the other end of the rail (9), and the first station is positioned between the second station and the third station; the grate type heat taking device (1) is arranged on the track (9) and can circularly move among a first station, a second station and a third station; the travelling crane (3) is arranged above the track (9) and can move above the track (9), and the travelling crane (3) can be detachably connected with the slag pot (2) and is used for pouring high-temperature blocky steel slag in the slag pot (2) into the grate type heat extraction device (1) at the first station; the travelling crane (3) can be detachably connected with the grate type heat taking device (1) and is used for hoisting the grate type heat taking device (1) positioned at the third station to unload slag; fan (4) pass through the pipeline with the side of bellows (5) is connected, bellows (5) are located station two places and are located below track (9), petticoat pipe (6) are located station two places and are located above track (9), measuring device (8) are installed on flue (7) for temperature, pressure and the flow of the air that is heated in real-time measurement flue (7) and real-time feedback measuring result.
When the grate type heat taking device (1) is positioned at the second station, the grate type heat taking device is hermetically connected between the air box (5) and the smoke hood (6).
Wherein, the grate type heat extraction device (1) comprises: the device comprises a vehicle body (1-1), a grid plate (1-2), wheels (1-3), a motor (1-4) and a vehicle door (1-5); the grate plate (1-2) is arranged on the bottom surface of the vehicle body (1-1), the vehicle door (1-5) is arranged at the front end of the vehicle body (1-1), the vehicle door (1-5) is hinged with the vehicle body (1-1), and the vehicle door (1-5) can rotate around a hinged shaft to realize the opening and closing functions; the wheels (1-3) are arranged at the lower part of the vehicle body (1-1); the motor (1-4) is connected with the wheel (1-3) and used for driving the wheel (1-3) to rotate through the motor (1-4) so as to realize the movement of the grate type heat taking device (1) for the test on the track (9).
Wherein the vehicle body (1-1) is connected with the grate plate (1-2) in a welding mode.
The lifting hooks (1-6) are arranged on two sides of the trolley body (1-1) and are used for being connected with the travelling crane (3) when the grate type heat taking device (1) is located at the third station.
Wherein the top of the vehicle body (1-1) is open, the top surface and the bottom surface are inclined planes, and the inclination angle of the inclined planes is 3-5 degrees so as to be used for slope sealing with the wind box (5) and the smoke hood (6); wherein the top surface is a surface connected with the smoke hood (6), and the bottom surface is a surface connected with the air box (5).
Wherein the gap between the gaps of the grid plates (1-2) is 5-10 mm.
The vehicle doors (1-5) can be automatically opened and closed by means of self weight in the tipping process of the grate type heat extraction device (1) for the test.
Wherein, the smoke cover (6) and the flue (7) are externally provided with heat insulation layers.
The invention also relates to a test method for recovering the waste heat of the steel slag, which comprises the following process steps:
(1) the grate type heat taking device (1) for the test is positioned on the track (9) and can freely move on the track (9); three stations, namely a station I, a station II and a station III, are arranged on the track (9); when the test is started, the grate type heat-taking device (1) for the test is positioned at a first station; the grate type heat taking device (1) for the test is preferably a grate cooling type slag car;
(2) hoisting a slag pot (2) filled with high-temperature massive steel slag by using a travelling crane (3), tilting the slag pot above the grate type heat removal device (1) for the test, filling the high-temperature massive steel slag into the grate type heat removal device (1) for the test, and forming a slag layer in the grate type heat removal device (1) for the test;
(3) the test grate type heat taking device (1) moves from the station I to the station II, at the moment, the test grate type heat taking device (1) is located between the air box (5) and the smoke hood (6), and the test grate type heat taking device (1) is respectively sealed with the air box (5) and the smoke hood (6), preferably in a slope sealing mode;
(4) starting a fan (4) to supply air, wherein cold air passes through an air box (5), passes through a grate plate (1-2) on the bottom surface of the grate type heat taking device (1) for the test, and then passes through a high-temperature slag layer in the grate type heat taking device (1) for the test and then is heated;
(5) the heated air is collected by the smoke hood (6) and then is discharged from the flue (7);
(6) the measuring device (8) is arranged on the flue (7) and can measure the temperature, the pressure and the flow of the heated air in real time and feed back the temperature, the pressure and the flow in real time; the measuring device (8) is preferably a temperature, pressure and/or flow sensor;
(7) the fan (4) stops supplying air, the test grate type heat taking device (1) moves from the station two to the station three, the tail part of the test grate type heat taking device (1) is lifted by the travelling crane (3), and after the test grate type heat taking device (1) is inclined, a vehicle door at the head part of the test grate type heat taking device (1) can be automatically opened to unload slag;
(8) after the slag is discharged, the grate type heat-taking device (1) for the test is moved from the third station to the first station
The invention preferably also relates to a test method and a device for recovering the waste heat of the steel slag, wherein the method comprises the following process steps:
(1) the grate type heat taking device (1) for the test is positioned on the track (9) and can freely move on the track (9). The track (9) is provided with three stations, namely a station (I), a station (II) and a station (III). When the test is started, the grate type heat-taking device (1) for the test is positioned at a station I;
(2) hoisting a slag pot (2) filled with high-temperature massive steel slag by using a travelling crane (3), tilting the slag pot above a grate cooling type slag car (1), filling the high-temperature massive steel slag into a grate type heat removal device (1) for a test, and forming a slag layer in the grate type heat removal device (1) for the test;
(3) the test grate type heat-taking device (1) moves from the station (I) to the station (II), and at the moment, the test grate type heat-taking device (1) is located between the air box (5) and the smoke hood (6) and is sealed in a slope sealing mode.
(4) Starting a fan (4) to supply air, wherein cold air passes through an air box, a grate plate on the bottom surface of the grate type heat-taking device (1) for the test, then passes through a high-temperature slag layer in the grate type heat-taking device (1) for the test and then is heated;
(5) the heated air is collected by the smoke hood (6) and then is discharged from the flue (7);
(6) the warm-pressure flow measuring device (8) is arranged on the flue (7) and can measure the temperature, pressure and flow of heated air in real time and feed back the temperature, pressure and flow in real time.
(7) And (3) stopping air supply by the fan (4), moving the test grate type heat taking device (1) from the station (II) to the station (III), hoisting the tail part of the test grate type heat taking device (1) by using the travelling crane (3), and automatically opening a vehicle door at the head part of the test grate type heat taking device (1) to unload slag after the test grate type heat taking device (1) is inclined.
(8) And after the slag is discharged, the grate type heat-taking device (1) for the test is moved from the station (III) to the station (I).
The test method and the device for recovering the waste heat of the steel slag comprise the following steps: the device comprises a grate type heat taking device (1) for a test, a slag pot (2), a travelling crane (3), a fan (4), an air box (5), a smoke hood (6), a flue (7), a warm pressure flow measuring device (8) and a track (9);
wherein the fan (4) is connected with the side surface of the air box (5) through a pipeline, the air box (5) is positioned at the station (II) and is positioned below the track (9), and the smoke hood (6) is positioned at the station (II) and is positioned above the track (9);
wherein, experimental grid formula heat transfer device (1) includes: the device comprises a vehicle body (1-1), a grid plate (1-2), wheels (1-3), a motor (1-4), a vehicle door (1-5) and a lifting hook (1-6); the vehicle body (1-1) is connected with the grate plate (1-2) in a welding mode, the vehicle door (1-5) is connected with the vehicle body (1-1) in a shaft type, and the vehicle door (1-5) can rotate around a shaft to realize opening and closing functions; the wheels (1-3) are arranged at the lower part of the vehicle body (1-1); the grate type heat taking device (1) for the test drives the wheels (1-3) to move on the slag track (9) through the motors (1-4);
the top of the vehicle body (1-1) is open, and the top surface and the bottom surface are inclined surfaces, so that the bellows (5) and the slope sealing with the smoke hood (6) are facilitated;
wherein the clearance of the grid plates (1-2) is 5-10 mm; the width of the grate plate is about 15mm, the grate plate is I-shaped, and after the two grate plates are spliced, the gap between the middle cracks is 5-10 mm.
The vehicle doors (1-5) can be automatically opened and closed by means of self weight in the tipping process of the grate type heat extraction device (1) for the test;
wherein the smoke hood (6) and the flue (7) are subjected to heat preservation treatment;
the waste heat recovery object of the method and the device comprises but is not limited to steel slag, and the method and the device can be used in waste heat recovery tests of high-temperature massive objects.
The method and the device have the advantages that the test-scale steel slag waste heat recovery is realized on the aspect of the method and the technology, and a basis is provided for the research and development of the later-stage waste heat recovery equipment.
Drawings
FIG. 1 is a schematic diagram of a test method for recovering waste heat of steel slag.
FIG. 2 is a front view of a grate type heat extraction device for testing.
Fig. 3 is a left view of the grate type heat extraction device for the test.
1. The grate type heat taking device for the test (1-1, a vehicle body 1-2, a grate plate 1-3, wheels 1-4, a motor 1-5, a vehicle door 1-6 and a hook) 2, a slag tank 3, a travelling crane 4, a fan 5, an air box 6, a smoke hood 7, a smoke flue 8, a temperature and pressure flow measuring device 9 and a track;
Detailed Description
As shown in fig. 1-3, a test device for recovering waste heat of steel slag comprises a grate type heat taking device 1 for test, a slag pot 2, a travelling crane 3, a fan 4, a wind box 5, a smoke hood 6, a flue 7, a measuring device 8 and a track 9; the rail 9 is provided with a first station, a second station and a third station, the second station is positioned at one end of the rail 9, the third station is positioned at the other end of the rail 9, and the first station is positioned between the second station and the third station; the grate type heat taking device 1 is arranged on the track 9 and can circularly move among a first station, a second station and a third station; the travelling crane 3 is arranged above the track 9 and can move above the track 9, and the travelling crane 3 can be detachably connected with the slag pot 2 and is used for pouring high-temperature blocky steel slag in the slag pot 2 into the grate type heat taking device 1 positioned at the first station; the travelling crane 3 can be detachably connected with the grate type heat taking device 1 and is used for hoisting the grate type heat taking device 1 positioned at the third station to unload slag; fan 4 pass through the pipeline with bellows 5's side is connected, bellows 5 is located station two places and is located below the track 9, petticoat pipe 6 is located station two places and is located above the track 9, measuring device 8 installs on flue 7 for the temperature, pressure and the flow of the air that is heated in real time measurement flue 7 and real-time feedback measuring result. The measuring device (8) is preferably a temperature, pressure and/or flow sensor; when the grate type heat taking device 1 is positioned at the second station, the grate type heat taking device is hermetically connected between the air box 5 and the smoke hood 6.
As shown in fig. 2 to 3, the grate type heat extraction device 1 includes: the device comprises a vehicle body 1-1, a grid plate 1-2, wheels 1-3, a motor 1-4 and a vehicle door 1-5; the grate plate 1-2 is arranged on the bottom surface of the vehicle body 1-1, the vehicle door 1-5 is arranged at the front end of the vehicle body 1-1, the vehicle door 1-5 is hinged with the vehicle body 1-1, and the vehicle door 1-5 can rotate around a hinged shaft to realize opening and closing functions; the wheels 1-3 are arranged at the lower part of the vehicle body 1-1; the motor 1-4 is connected with the wheel 1-3 and used for driving the wheel 1-3 to rotate through the motor 1-4 so as to realize the movement of the grate type heat taking device 1 for the test on the track 9. Wherein the vehicle body 1-1 is connected with the grate plate 1-2 in a welding mode. The lifting hooks 1-6 are arranged on two sides of the vehicle body 1-1 and are used for being connected with the travelling crane 3 when the grate type heat taking device 1 is located at the third station. Wherein the top of the vehicle body 1-1 is open, the top surface and the bottom surface are inclined planes, and the inclination angle of the inclined planes is 3-5 degrees so as to be used for slope sealing with the wind box 5 and the smoke hood 6; wherein the top surface is a surface connected with the smoke hood 6, and the bottom surface is a surface connected with the air box 5. Wherein the gap between the gaps of the grid plates 1-2 is 5-10 mm. The vehicle doors 1-5 can be automatically opened and closed by means of self weight in the tipping process of the grate type heat extraction device 1 for the test. Wherein, the smoke cover 6 and the flue 7 are externally provided with heat insulation layers.
As shown in fig. 1-3, a test method for recovering the waste heat of steel slag comprises the following process steps:
(1) the grate type heat taking device 1 for the test is positioned on the track 9 and can freely move on the track 9; three stations, namely a station I, a station II and a station III, are arranged on the track 9; when the test is started, the grate type heat taking device 1 for the test is positioned at a first station; the grate type heat taking device 1 for the test is preferably a grate cooling type slag car;
(2) hoisting a slag pot 2 filled with high-temperature massive steel slag by using a travelling crane 3, tilting the slag pot above the grate type heat taking device 1 for the test, filling the high-temperature massive steel slag into the grate type heat taking device 1 for the test, and forming a slag layer in the grate type heat taking device 1 for the test;
(3) the test grate type heat taking device 1 moves from the first station to the second station, at the moment, the test grate type heat taking device 1 is located between the air box 5 and the smoke hood 6, and the test grate type heat taking device 1 is respectively sealed with the air box 5 and the smoke hood 6, preferably in a slope sealing mode;
(4) starting a fan 4 to supply air, wherein cold air passes through an air box 5, passes through a grate plate 1-2 on the bottom surface of the grate type heat taking device 1 for the test, passes through a high-temperature slag layer in the grate type heat taking device 1 for the test and is heated;
(5) the heated air is collected by the smoke hood 6 and then is discharged from the flue 7;
(6) the measuring device 8 is arranged on the flue 7, and can measure the temperature, the pressure and the flow of the heated air in real time and feed back the temperature, the pressure and the flow in real time; the measuring means 8 are preferably temperature, pressure and/or flow sensors;
(7) the fan 4 stops supplying air, the test grate type heat taking device 1 moves from the station two to the station three, the tail part of the test grate type heat taking device 1 is lifted by the travelling crane 3, and after the test grate type heat taking device 1 is inclined, a vehicle door at the head part of the test grate type heat taking device 1 is automatically opened to unload slag;
(8) after the slag is discharged, the grate type heat taking device 1 for the test is moved from the third station to the first station
The above embodiments are not limited to the above embodiments, and other combinations of related devices are also within the scope of the present invention, and the above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore, all equivalent technical solutions should also fall within the scope of the present invention.
Claims (10)
1. A test device for recovering waste heat of steel slag is characterized by comprising a grate type heat taking device (1) for a test, a slag tank (2), a travelling crane (3), a fan (4), an air box (5), a smoke hood (6), a flue (7), a measuring device (8) and a track (9); the rail (9) is provided with a first station, a second station and a third station, the second station is positioned at one end of the rail (9), the third station is positioned at the other end of the rail (9), and the first station is positioned between the second station and the third station; the grate type heat taking device (1) is arranged on the track (9) and can circularly move among a first station, a second station and a third station; the travelling crane (3) is arranged above the track (9) and can move above the track (9), and the travelling crane (3) can be detachably connected with the slag pot (2) and is used for pouring high-temperature blocky steel slag in the slag pot (2) into the grate type heat extraction device (1) at the first station; the travelling crane (3) can be detachably connected with the grate type heat taking device (1) and is used for hoisting the grate type heat taking device (1) positioned at the third station to unload slag; fan (4) with bellows (5) are connected, bellows (5) are located station two places and are located below track (9), petticoat pipe (6) are located station two places and are located above track (9), and measuring device (8) are installed on flue (7) for temperature, pressure and the flow of the air that is heated in real time measurement flue (7) and real-time feedback measuring result.
2. The testing device according to claim 1, characterized in that the grate type heat extraction device (1) is hermetically connected between the wind box (5) and the smoke hood (6) when located at the second station.
3. Test unit according to one of claims 1 to 2, characterized in that the grate heat removal device (1) comprises: the device comprises a vehicle body (1-1), a grid plate (1-2), wheels (1-3), a motor (1-4) and a vehicle door (1-5); the grate plate (1-2) is arranged on the bottom surface of the vehicle body (1-1), the vehicle door (1-5) is arranged at the front end of the vehicle body (1-1), the vehicle door (1-5) is hinged with the vehicle body (1-1), and the vehicle door (1-5) can rotate around a hinged shaft to realize the opening and closing functions; the wheels (1-3) are arranged at the lower part of the vehicle body (1-1); the motor (1-4) is connected with the wheel (1-3) and used for driving the wheel (1-3) to rotate through the motor (1-4) so as to realize the movement of the grate type heat taking device (1) for the test on the track (9).
4. The test device according to one of the claims 1 to 3, characterized in that the vehicle body (1-1) and the grate plate (1-2) are connected by welding.
5. The test device according to one of the claims 1 to 4, wherein hooks (1-6) are arranged on both sides of the vehicle body (1-1) and are used for connecting with the travelling crane (3) when the grate type heat extraction device (1) is positioned at the third station.
6. The test apparatus according to one of claims 1 to 5, wherein the vehicle body (1-1) is open at the top, and the top and bottom surfaces are inclined planes having an inclination angle of 3 ° to 5 ° for slope sealing with the wind box (5) and the hood (6); wherein the top surface is a surface connected with the smoke hood (6), and the bottom surface is a surface connected with the air box (5).
7. The testing device according to one of the claims 1 to 6, characterized in that the gap between the grid plates (1-2) is 5-10 mm.
8. Test device according to one of claims 1 to 7, characterized in that the vehicle doors (1 to 5) can be opened and closed automatically by means of their own weight during the tilting of the test grate heat removal device (1).
9. Test unit according to one of claims 1 to 8, characterized in that the hood (6) and the flue (7) are provided with insulation on the outside.
10. A test method for recovering the waste heat of steel slag is characterized by comprising the following process steps:
(1) the grate type heat taking device (1) for the test is positioned on the track (9) and can freely move on the track (9); three stations, namely a station I, a station II and a station III, are arranged on the track (9); when the test is started, the grate type heat-taking device (1) for the test is positioned at a first station; the grate type heat taking device (1) for the test is preferably a grate cooling type slag car;
(2) hoisting a slag pot (2) filled with high-temperature massive steel slag by using a travelling crane (3), tilting the slag pot above the grate type heat removal device (1) for the test, filling the high-temperature massive steel slag into the grate type heat removal device (1) for the test, and forming a slag layer in the grate type heat removal device (1) for the test;
(3) the test grate type heat taking device (1) moves from the station I to the station II, at the moment, the test grate type heat taking device (1) is located between the air box (5) and the smoke hood (6), and the test grate type heat taking device (1) is respectively sealed with the air box (5) and the smoke hood (6), preferably in a slope sealing mode;
(4) starting a fan (4) to supply air, wherein cold air passes through an air box (5), passes through a grate plate (1-2) on the bottom surface of the grate type heat taking device (1) for the test, and then passes through a high-temperature slag layer in the grate type heat taking device (1) for the test and then is heated;
(5) the heated air is collected by the smoke hood (6) and then is discharged from the flue (7);
(6) the measuring device (8) is arranged on the flue (7) and can measure the temperature, the pressure and the flow of the heated air in real time and feed back the temperature, the pressure and the flow in real time; the measuring device (8) is preferably a temperature, pressure and/or flow sensor;
(7) the fan (4) stops supplying air, the test grate type heat taking device (1) moves from the station two to the station three, the tail part of the test grate type heat taking device (1) is lifted by the travelling crane (3), and after the test grate type heat taking device (1) is inclined, a vehicle door at the head part of the test grate type heat taking device (1) can be automatically opened to unload slag;
(8) and after the slag is discharged, the grate type heat-taking device (1) for the test is moved from the third station to the first station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248939.9A CN110863070B (en) | 2019-12-09 | 2019-12-09 | Test device and test method for recycling waste heat of steel slag |
Applications Claiming Priority (1)
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| CN111850194A (en) * | 2020-08-04 | 2020-10-30 | 中冶节能环保有限责任公司 | High-temperature steel slag bottom blowing air cooling crushing waste heat recovery device and method |
| CN112899416A (en) * | 2021-03-17 | 2021-06-04 | 中冶节能环保有限责任公司 | Method for utilizing waste heat of steel slag |
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| CN110863070B (en) | 2023-05-05 |
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