CN211142069U - Test device for recycling waste heat of steel slag - Google Patents
Test device for recycling waste heat of steel slag Download PDFInfo
- Publication number
- CN211142069U CN211142069U CN201922182277.1U CN201922182277U CN211142069U CN 211142069 U CN211142069 U CN 211142069U CN 201922182277 U CN201922182277 U CN 201922182277U CN 211142069 U CN211142069 U CN 211142069U
- Authority
- CN
- China
- Prior art keywords
- station
- slag
- test
- type heat
- grate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a retrieve test device of slag waste heat, test device is including experimental grate type heat removal device (1), slag ladle (2), driving (3), fan (4), bellows (5), petticoat pipe (6), flue (7), measuring device (8) and track (9) of getting with the comb, based on slag roll-in breakage-the vexed technology of pressure heat and technical equipment, pack into experimental grate cooling formula slag heat removal device (1) of getting with the cubic slag of high temperature after the roll-in breakage, in experimental grate cooling formula slag heat removal device (1) of getting with the comb, utilize the direct heat transfer between air and cubic slag to get heat, through measuring the temperature, pressure and the flow of the air after being heated by the slag, acquire waste heat recovery data. The utility model discloses the advantage has realized the slag waste heat recovery of experimental scale on the device, provides the basis for the research and development that later stage waste heat recovery was equipped.
Description
Technical Field
The utility model relates to a test device of recovery slag waste heat belongs to slag waste heat recovery field.
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 of the test scale on the basis of the steel slag rolling crushing-waste heat self-decomposition pressing hot-stuffiness process technology, and provides a basis for the research and development of later-stage waste heat recovery equipment.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a retrieve test device of slag waste heat, test device gets heat device, slag ladle, driving, fan, bellows, petticoat pipe, flue, measuring device and track including experimental grate formula with the comb formula, based on slag roll-in breakage-the vexed technology of pressure heat and technical equipment, pack into experimental grate cooling formula slag of getting heat device with the cubic slag of high temperature after the roll-in breakage, in experimental grate cooling formula slag gets heat device with the comb, utilize the direct heat transfer between air and cubic slag to get heat, through measuring the temperature of the air after being heated by the slag, pressure and flow, acquire waste heat recovery data. The utility model has the advantages that the device and the method realize the steel slag waste heat recovery of the test scale, and provide the basis for the research and development of the later waste heat recovery equipment.
The utility model relates to a test device for recovering waste heat of steel slag, which comprises a grate type heat taking device (1) for test, a slag pot (2), a traveling 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 utility model discloses still relate to a test method of retrieving slag waste heat, the method includes 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 utility model discloses it is preferred still to relate to a test method and device of retrieving slag waste heat, the method includes 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 utility model has the advantages that the steel slag waste heat recovery of experimental scale has been realized in the method and the technique, provides the basis for the research and development of 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, but also other combinations of related devices are also the scope of the present invention, and the above embodiments are only for illustrative purposes, rather than for the limitations of the present invention, and those skilled in the relevant 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 belong to 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) 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.
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 testing device according to claim 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 claim 4, wherein the lifting hooks (1-6) are arranged on two sides of the vehicle body (1-1) and used for being connected 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 claim 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 claim 6, characterized in that the gap between the grid plates (1-2) is 5-10 mm.
8. The test device according to claim 7, characterized in that the vehicle doors (1-5) can be automatically opened and closed by means of self-weight during the tipping process of the grate heat removal device (1) for test.
9. Test unit according to one of claims 1-2, characterized in that the hood (6) and the flue (7) are externally provided with insulation.
10. Testing device according to one of the claims 1-2, characterized in that the measuring means (8) are temperature, pressure and flow sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922182277.1U CN211142069U (en) | 2019-12-09 | 2019-12-09 | Test device for recycling waste heat of steel slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922182277.1U CN211142069U (en) | 2019-12-09 | 2019-12-09 | Test device for recycling waste heat of steel slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211142069U true CN211142069U (en) | 2020-07-31 |
Family
ID=71754947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922182277.1U Active CN211142069U (en) | 2019-12-09 | 2019-12-09 | Test device for recycling waste heat of steel slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211142069U (en) |
-
2019
- 2019-12-09 CN CN201922182277.1U patent/CN211142069U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017071312A1 (en) | Steel scrap preheating-type electric arc furnace and method for improving heating cold area of side wall charging electric arc furnace | |
| CN110863070B (en) | Test device and test method for recycling waste heat of steel slag | |
| CN111850194A (en) | High-temperature steel slag bottom blowing air cooling crushing waste heat recovery device and method | |
| CN210117386U (en) | Steel slag thermal crushing and waste heat recovery device | |
| CN103776270A (en) | Calcium carbide sensible heat recovery equipment and method for calcium carbide furnace | |
| CN201283426Y (en) | Vacuum induction smelting furnace | |
| CN211142069U (en) | Test device for recycling waste heat of steel slag | |
| CN209006661U (en) | A kind of hot-metal bottle covers one-touch Remote Automatic Control System online | |
| CN107755675A (en) | A kind of whole-process automatic covering/uncovering device of hot-metal bottle | |
| CN104846151B (en) | A kind of vacuum tank vacuum pumping method and vacuum refining method of molten steel thereof | |
| CN204981954U (en) | End portable medium temperature pit furnace of feeding | |
| CN108311684A (en) | Continuous caster turret smoke gathering device | |
| CN107755676A (en) | A kind of hot-metal bottle whole-process automatic uncovery size groups closing lid | |
| CN201625778U (en) | Ladle overall-process automatic capping and de-capping device | |
| CN207508256U (en) | A kind of whole-process automatic covering/uncovering device of hot-metal bottle | |
| JP2873178B2 (en) | Aging method and apparatus for steelmaking slag | |
| CN213037809U (en) | Continuous heat treatment device for castings | |
| CN205032713U (en) | Train ladle is whole covers device with getting automatically | |
| CN215906228U (en) | Closed cover of metallurgical slag treatment device | |
| CN205879367U (en) | Torpedo car's temperature measuring system | |
| CN103611741A (en) | Slow cooling device and method for steel plates | |
| CN203602634U (en) | Waste heat recovery device of blast furnace slag | |
| CN206276726U (en) | Batch the overall at the uniform velocity cooling controller of furnace drum | |
| CN205826577U (en) | A kind of universal safety detection equipment of torpedo tank car | |
| CN112589066A (en) | Waste recycling equipment and method in cylinder body casting process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |