CN113430324A - Angle self-adaptive air blowing and slag removing system and method under high scrap ratio condition - Google Patents
Angle self-adaptive air blowing and slag removing system and method under high scrap ratio condition Download PDFInfo
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- CN113430324A CN113430324A CN202110575281.3A CN202110575281A CN113430324A CN 113430324 A CN113430324 A CN 113430324A CN 202110575281 A CN202110575281 A CN 202110575281A CN 113430324 A CN113430324 A CN 113430324A
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- 239000002893 slag Substances 0.000 title claims abstract description 110
- 238000007664 blowing Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 82
- 229910052751 metal Inorganic materials 0.000 claims abstract description 82
- 230000007246 mechanism Effects 0.000 claims abstract description 61
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 114
- 229910052742 iron Inorganic materials 0.000 claims description 57
- 230000008569 process Effects 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims 4
- 239000013049 sediment Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000003780 insertion Methods 0.000 abstract description 7
- 230000037431 insertion Effects 0.000 abstract description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 229910052786 argon Inorganic materials 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/005—Removing slag from a molten metal surface
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses an angle self-adaptive air blowing and slag removing system under the condition of high scrap steel ratio, which comprises a hot metal ladle for containing hot metal, wherein trunnions are arranged on two sides of the hot metal ladle, an angle gauge is arranged on the hot metal ladle, the angle gauge also comprises an air blowing and slag removing system, the air blowing and slag removing system comprises an air blowing and slag removing gun, the air blowing and slag removing gun is fixed through a gun body fixing frame, a gun body rotating mechanism is arranged on the gun body fixing frame, a gun body lifting system and a pressure sensor are arranged at the rear end of the air blowing and slag removing gun, the gun body rotating mechanism is connected with a transverse moving mechanism through a connecting frame, the transverse moving mechanism is arranged in a horizontal fixing frame and is connected with a transverse moving driving system, a displacement sensor is arranged at the end part of the transverse moving mechanism, and the horizontal fixing frame is arranged on a support; a camera is also arranged above the hot metal ladle. The invention also provides a method for blowing gas to remove slag. The invention can avoid the situation that the gun body is bent or the transmission system is damaged due to the forced insertion of the air blowing and slag removing gun because the surface of the hot metal ladle is bonded by hard scrap steel or steel slag.
Description
Technical Field
The invention relates to an air blowing and slag removing system, in particular to an angle self-adaptive air blowing and slag removing system under a high scrap ratio condition, and belongs to the technical field of slagging-off of molten iron in steel making.
Background
The blowing and slag removing of molten iron desulfurization is to insert a slag removing gun with air pressure into molten iron and gather slag on the surface of a molten iron tank by utilizing air kinetic energy so as to reduce the slag removing times, improve the slag removing efficiency and reduce the slag removing iron loss. At present, as each large steel mill pursues a large scrap ratio, low-cost smelting is realized. The molten iron amount is reduced to a certain degree when the molten iron is subjected to slag skimming, and the inclination angle of the original molten iron tank cannot meet the slag skimming requirement, so that the inclination angle of the molten iron tank must be adjusted according to the molten iron amount, and meanwhile, the angle of the air blowing and slag removing gun also needs to be adjusted.
In the prior art, a part of researches on an air blowing and slag removing system are carried out. For example, the Chinese patent with publication number CN 106319149A discloses a replacing trolley for a gun head of an air blowing slag removing gun and a using method thereof, the device and the method relate to the field of slag removing equipment of molten metal, the device comprises the gun head, a gun head connecting piece and a base, and is characterized in that: the horizontal rail, the storage box, the transverse moving driver and the spring assembly are further included, the horizontal rails are horizontally fixed on the base in parallel, the driving rod of the transverse moving driver is connected with the storage box, and the spring assembly is arranged at the top of each box body unit. The method is characterized in that: the steps of storage, connection, transverse movement and replacement are carried out in sequence. The invention has simple structure, convenient disassembly and assembly, less time consumption, less manpower and low cost, but the patent can not meet the optimization of the tilting angle of the hot metal ladle and the automatic control of argon blowing under the condition of scrap steel ratio;
for another example, chinese patent publication No. CN 107502697 a discloses a molten iron desulphurization blowing slag removal device, which includes a molten iron tank and a slag raking machine, and includes a blowing structure for blowing molten iron in the molten iron tank, wherein the blowing structure is composed of a blowing gun and a telescopic rod. When in actual use, the blowing gun controls the blowing of the molten iron in the molten iron tank through the telescopic rod, so that the blowing gun can be telescopically controlled. The improvement greatly reduces the overall occupied space of the device, so that the mechanical structure is lighter, the mechanism size and the structure are more compact, the actual operation space has a larger working space/volume ratio, and the good space support is improved for operation. The method is particularly suitable for molten iron desulphurization blowing slag removal operation with compact space, but the method cannot meet the optimization of the tipping angle of the molten iron tank and the automatic argon blowing control under the condition of scrap steel ratio;
chinese patent publication No. CN 106335746 a discloses a rotary blowing slag-removing device, which comprises a gun barrel and is characterized in that: still include operating system, angle governing system and rotation system, operating system includes: the lifting device comprises a lifting track, a lifting trolley, a driving chain wheel, a driven chain wheel, a chain, a bearing group and a rotation driving device; the angle adjustment system includes: the ear plate, the hinge seat and the angle adjusting device; the swing system includes: the device comprises an upper bearing seat, a lower bearing seat, a rotary frame and a rotary driving device. The device has simple structure, convenient use and strong adaptability, but the patent can not meet the optimization of the tilting angle of the hot metal ladle and the automatic control of argon blowing under the condition of scrap steel ratio;
the Chinese patent with publication number CN 106337103A discloses a rotary type air-blowing slag-removing device assembly and a use method thereof, the device assembly comprises a rotary type air-blowing slag-removing device, a gun head clamping device, a gun head automatic connecting device, a gun head replacing trolley and a dismantling tool, and is characterized in that: the rotary type air blowing and slag removing device comprises a lifting system, an angle adjusting system, a rotating system and a gun barrel; the lance head replacing trolley comprises a lance head, a lance head connecting piece, a base, a horizontal rail, a storage box, a transverse moving driver and a spring assembly. The using method is characterized in that: the method comprises 5 steps of adjusting a rotary blowing slag removal device, clamping a gun head, automatically connecting the gun head, replacing a trolley by using the gun head and removing the blowing slag removal gun. The automatic control device is simple in structure, convenient to use and high in adaptability, but the automatic control device cannot meet the requirements of optimization of the tilting angle of the hot metal ladle and automatic argon blowing control under the condition of scrap steel ratio.
In summary, in the prior art, no blowing and slag removing technology and control method capable of effectively realizing angle self-adaptation under the condition of high scrap ratio are found.
Disclosure of Invention
In order to solve the existing problems, the invention discloses an angle self-adaptive air blowing and slag removing system under the condition of high scrap ratio, the whole system has simple structure and reliable control, and the whole process does not need human intervention; the automatic identification of the distance between the molten iron and the ladle edge can be realized through the camera and the image identification, the automatic control of the optimal inclination angle of the molten iron ladle under different molten iron weight conditions is met, and the real-time measurement of the tilting angle of the molten iron ladle can be realized through the angle meter; the system can realize automatic calculation of the moving distance of the horizontal fixed frame according to the inclination angle of the molten iron tank and can realize real-time monitoring of the moving distance through the displacement sensor; the transverse moving driving system can realize the rapid transverse movement of the whole air blowing and slag removing system; the system can realize the automatic calculation of the insertion distance of the air blowing slag-removing gun according to the inclination angle of the hot-metal ladle, and avoids the situation that the gun body is bent or the transmission system is damaged due to the forced insertion of the air blowing slag-removing gun through the comparison of pressure signals, wherein hard scrap steel or steel slag is adhered to the surface of the hot-metal ladle.
The invention is realized by the following steps:
an angle self-adaptive air blowing and slag removing system under the condition of high scrap steel ratio comprises a hot metal ladle for containing hot metal, trunnions are arranged on two sides of the hot metal ladle, an angle instrument is arranged on the hot metal ladle, and the angle self-adaptive air blowing and slag removing system also comprises an air blowing and slag removing system, wherein the air blowing and slag removing system comprises an air blowing and slag removing gun which is fixed through a gun body fixing frame, a gun body rotating mechanism is arranged on the gun body fixing frame, a gun body lifting system and a pressure sensor are arranged at the rear end of the air blowing and slag removing gun, the gun body rotating mechanism is connected with a transverse moving mechanism through a connecting frame, the transverse moving mechanism is arranged in a horizontal fixing frame and is connected with a transverse moving driving system, a displacement sensor is arranged at the end part of the transverse moving mechanism, and the horizontal fixing frame is arranged on a support; a camera is also arranged above the hot metal ladle.
The further scheme is as follows:
the trunnion realizes the rotation of hot metal bottle angle under the drive of tipping device.
The further scheme is as follows:
one end of the strut is fixed on the foundation, and the other end of the strut is fixed with a horizontal fixing frame.
In the application, the hot metal bottle is a container for containing hot metal and is mainly used for containing the hot metal; the angle gauge is installed on the trunnion, so that the inclination angle of the hot metal ladle can be measured in real time. The transverse moving mechanism and the transverse moving driving system are arranged in the horizontal fixed frame, and one end of the transverse moving driving system is fixed with the horizontal fixed frame, and the other end of the transverse moving driving system is connected with the transverse moving mechanism, so that the transverse moving mechanism can horizontally move under the action of the transverse moving driving system; the cross sliding mechanism is fixedly provided with a connecting bracket, and the connecting bracket is provided with a gun body rotating mechanism. The transmission mode of the gun body rotating mechanism can be gear transmission, shaft rotation and the like. The gun body fixing frame is fixed on the gun body rotating mechanism, so that the gun body fixing frame can rotate around the central point of the gun body fixing frame under the action of the gun body rotating mechanism; an air blowing slag removing gun and a gun body lifting system are arranged in the gun body fixing frame, wherein one end of the gun body lifting system is fixed on the gun body fixing frame, and the other end of the gun body lifting system is connected with the air blowing slag removing gun, so that the air blowing slag removing gun can lift along the direction of the gun body fixing frame under the action of the gun body lifting system; the tail end of the gun body lifting system is provided with a pressure sensor, so that the pressure on the gun body can be detected in real time in the lifting process of the air blowing and slag removing gun; the camera is designed above the molten iron tank in an inclined mode, whether the molten iron liquid level is close to the tank edge or not can be judged through image recognition, and therefore calculation of the tilting angle of the molten iron tank under the condition of different loading amounts of the molten iron tank is achieved.
In the whole system, the inclination angle of the molten iron tank and the horizontal plane is a, and the inclination angle is measured by an angle meter in real time; the horizontal distance between the center line of the trunnion of the hot metal ladle and the center line of the upright post is L, the vertical distance between the center line of the trunnion of the hot metal ladle and the center line of the traversing mechanism is H, the vertical distance between the trunnion of the hot metal ladle and the edge of the ladle is H2, the horizontal distance between the rotating center point of the air blowing slag removing gun and the center line of the upright post under the initial condition is L1, the distance between the center line of the final position of the air blowing slag removing gun and the outer edge of the hot metal ladle is D, the distance between the top point (the lowest point) of the air blowing slag removing gun and the center line of the horizontal fixed frame is H1, the outer diameter of the hot metal ladle is C, the set value of the horizontal moving distance of the air blowing slag removing gun under the different molten iron loading conditions of the hot metal ladle is S, the set value of the downward moving distance of the air blowing slag removing gun is E, and the set value of the depth of the air blowing slag removing gun inserted below the molten iron liquid level is TIs provided with。
The invention also provides an angle self-adaptive air blowing and slag removing method under the condition of high scrap steel ratio, which specifically comprises the following steps:
1) after the hot metal ladle reaches the slag skimming position, the tilting system drives the hot metal ladle to rotate along the central line of the trunnion, the camera detects the distance between the hot metal and the edge of the hot metal ladle in real time, when the detected distance is less than or equal to 50mm or the inclination angle a of the hot metal ladle is less than 50 degrees, the tilting system stops tilting, the position of the hot metal ladle is locked by utilizing a band-type brake, and the next step is carried out; if the distance between the molten iron and the edge of the hot metal ladle is detected to be more than 50mm and the inclination angle a of the hot metal ladle is detected to be more than or equal to 50 degrees, the tilting system continuously tilts;
2) the transverse moving driving system (the transmission mode can be chain type, cylinder, oil cylinder, etc.) is started and drives the transverse moving mechanism to move leftwards, and the calculation formula of the moving distance set value S is as follows:
in the moving process of the transverse moving mechanism, a displacement sensor arranged on a transverse moving driving system detects the moving distance in real time, and when the moving distance reaches a set value S, the transverse moving mechanism stops operating to carry out the next step;
3) starting an air source of the air blowing slag removing gun and supplying air to the air blowing slag removing gun;
4) the gun body fixing frame is vertical to the traversing mechanism in an initial state, and the air blowing slag removing gun is also vertical to the traversing mechanism. When receiving a gun body rotation signal, the gun body fixing frame rotates clockwise under the action of the gun body rotating mechanism, and when the rotating angle reaches (90-a) °, the gun body fixing frame stops rotating to perform the next step;
5) the gun body lifting system pushes the air blowing slag removing gun to descend, and the calculation formula of the extension distance set value E is as follows:
when the extending distance reaches a set value E, stopping the gun body lifting system to operate, and carrying out the next step; in the descending process of the gun body, the pressure of the gun body is detected in real time through a pressure sensor, and when the pressure of the gun body exceeds a set value FIs provided withWhen the process is carried out, the hard scrap steel or steel slag is bonded on the surface of the hot metal ladle, and the recovery of the gun body is directly finished, so that the gun body can be effectively protected, and hardware equipment is prevented from being damaged;
6) and when a slag removing end signal arrives, the air blowing slag removing gun retracts and returns the angle, the transverse moving mechanism returns, and the whole process is ended.
The further scheme is as follows:
the depth set value TIs provided withThe value of (A) is 800mm to 1500 mm.
The invention has the following advantages:
the whole system has simple structure and reliable control, and does not need human intervention in the whole process;
the automatic identification of the distance between the molten iron and the ladle edge can be realized through the camera and the image identification, the automatic control of the optimal inclination angle of the molten iron ladle under different molten iron weight conditions is met, and the real-time measurement of the tilting angle of the molten iron ladle can be realized through an angle meter;
the system can realize automatic calculation of the moving distance of the horizontal fixed frame according to the inclination angle of the molten iron tank and can realize real-time monitoring of the moving distance through a displacement sensor;
the transverse moving driving system can be used for realizing the rapid transverse movement of the whole air blowing and slag removing system;
the system can automatically calculate the insertion distance of the air blowing slag removing gun according to the inclination angle of the hot metal ladle, and avoids the situation that the gun body is bent or a transmission system is damaged due to forced insertion of the air blowing slag removing gun through the adhesion of hard scrap steel or steel slag on the surface of the hot metal ladle by comparing pressure signals.
Drawings
FIG. 1 is a general layout of the apparatus of the present patent;
FIG. 2 is a layout diagram of the whole equipment with dimension marking of the patent.
The drawing marks are a molten iron tank 1, molten iron 2, a trunnion 3, an angle gauge 4, an air blowing and slag removing gun 5, a gun body fixing frame 6, a gun body rotating mechanism 7, a gun body lifting system 8, a pressure sensor 9, a connecting support 10, a transverse moving mechanism 11, a horizontal fixing frame 12, a transverse moving driving system 13, a displacement sensor 14, a support column 15 and a camera 16.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in the attached drawings 1 and 2: an angle self-adaptive air blowing and slag removing system under the condition of high scrap steel ratio comprises a hot metal ladle 1, molten iron 2, trunnions 3, an angle gauge 4, an air blowing and slag removing gun 5, a gun body fixing frame 6, a gun body rotating mechanism 7, a gun body lifting system 8, a pressure sensor 9, a connecting support 10, a transverse moving mechanism 11, a horizontal fixing frame 12, a transverse moving driving system 13, a displacement sensor 14, a support column 15 and a camera 16.
The system comprises the following components: the hot metal ladle 1 is a container for containing molten iron 2 and is mainly used for containing the molten iron 2, two sides of the hot metal ladle 1 are provided with trunnions 3, and the trunnions 3 are driven by a tipping device to realize the angular rotation of the hot metal ladle 1; an angle gauge 4 is arranged on the trunnion 3, and can measure the inclination angle of the hot metal ladle 1 in real time; the air blowing and slag removing system comprises an air blowing and slag removing gun 5, a gun body fixing frame 6, a gun body rotating mechanism 7, a gun body lifting system 8, a pressure sensor 9, a connecting bracket 10, a transverse moving mechanism 11, a horizontal fixing frame 12, a transverse moving driving system 13, a displacement sensor 14 and a support 15; wherein one end of the strut 15 is fixed on the foundation, and the other end is fixed with a horizontal fixed frame 12; the transverse moving mechanism 11 and the transverse moving driving system 13 are arranged in the horizontal fixed frame 12, and one end of the transverse moving driving system 13 is fixed with the horizontal fixed frame 12, and the other end of the transverse moving driving system 13 is connected with the transverse moving mechanism 11, so that the transverse moving mechanism 11 can horizontally move under the action of the transverse moving driving system 13; a connecting support 10 is fixedly arranged on the transverse moving mechanism 11, and a gun body rotating mechanism 7 (the transmission mode can be gear transmission, shaft rotation and the like) is designed on the connecting support 10; the gun body fixing frame 6 is fixed on the gun body rotating mechanism 7, so that the gun body fixing frame can rotate around the central point of the gun body fixing frame 6 under the action of the gun body rotating mechanism 7; an air blowing slag removing gun 5 and a gun body lifting system 8 are arranged in the gun body fixing frame 6, wherein one end of the gun body lifting system 8 is fixed on the gun body fixing frame 6, and the other end of the gun body lifting system 8 is connected with the air blowing slag removing gun 5, so that the air blowing slag removing gun 5 can be lifted along the direction of the gun body fixing frame 6 under the action of the gun body lifting system 8; the tail end of the gun body lifting system 8 is provided with a pressure sensor 9, so that the pressure on the gun body can be detected in real time in the lifting process of the air blowing and slag removing gun 5; the camera 16 is designed above the hot metal ladle 1 in an inclined mode, and can judge whether the molten iron liquid level is close to the ladle edge or not through image recognition, so that the calculation of the tilting angle of the hot metal ladle under the condition of different loading amounts of the hot metal ladle is realized.
In the whole system, the inclination angle of the molten iron tank 1 and the horizontal plane is a, and the inclination angle is measured by an angle meter 4 in real time; the horizontal distance between the central line of the trunnion 3 of the hot metal ladle 1 and the central line of the upright post 15 is L, the vertical distance between the central line of the trunnion 3 of the hot metal ladle 1 and the central line of the transverse moving mechanism 11 is H, the vertical distance between the trunnion 3 of the hot metal ladle 1 and the ladle edge is H2,the horizontal distance between the rotating center point of the air blowing slag removing gun 5 and the center line of the upright post 15 under the initial condition is L1, the distance between the center line of the final position of the air blowing slag removing gun 5 and the outer edge of the molten iron tank 1 is D, the distance between the top point (the lowest point) of the air blowing slag removing gun 5 and the center line of the horizontal fixed frame 12 is H1, the outer diameter of the molten iron tank 1 is C, the set value of the horizontal moving distance of the air blowing slag removing gun 5 under the condition of different molten iron 2 loading amounts of the molten iron tank 1 is S, the set value of the downward moving distance of the air blowing slag removing gun 5 is E, and the set value of the depth of theIs provided with(generally, the set value is 800mm-1500 mm).
The control flow and the working principle of the whole air blowing and slag removing system are as follows:
1. after the hot metal ladle 1 reaches the slag skimming position, the tilting system drives the hot metal ladle 1 to rotate along the central line of the trunnion 3, meanwhile, the camera 16 detects the distance between the hot metal 2 and the ladle edge of the hot metal ladle 1 in real time, when the detected distance is less than or equal to 50mm or the inclination angle a of the hot metal ladle 1 is less than 50 degrees, the tilting system stops tilting, and the position of the hot metal ladle 1 is locked by utilizing a band-type brake for the next step; if the distance between the molten iron 2 and the edge of the molten iron tank 1 is detected to be more than 50mm and the inclination angle a of the molten iron tank 1 is detected to be more than or equal to 50 degrees, the tilting system continuously tilts;
2. the traverse driving system 13 (the transmission mode can be chain, cylinder, oil cylinder, etc.) is started and drives the traverse mechanism 11 to move leftwards, and the calculation formula of the moving distance set value S is as follows:
in the moving process of the transverse moving mechanism 11, a displacement sensor 14 arranged on a transverse moving driving system 13 detects the moving distance in real time, and when the moving distance reaches a set value S, the transverse moving mechanism 11 stops operating and carries out the next step;
3. starting an air source of the air blowing and slag removing gun 5, and supplying air to the air blowing and slag removing gun 5;
4. the gun body fixing frame 6 is vertical to the traversing mechanism 11 in the initial state, and the air blowing slag removing gun 5 is also vertical to the traversing mechanism 11. When receiving the gun body rotation signal, the gun body fixing frame 6 rotates clockwise under the action of the gun body rotating mechanism 7, and when the rotating angle reaches (90-a) °, the gun body fixing frame 6 stops rotating to perform the next step;
5. the gun body lifting system 8 pushes the air blowing and slag removing gun 5 to descend, and the calculation formula of the extension distance set value E is as follows:
when the extending distance reaches a set value E, the gun body lifting system 8 stops running and the next step is carried out; in the descending process of the gun body, the pressure of the gun body is detected in real time through the pressure sensor 9, and when the pressure of the gun body exceeds a set value FIs provided withWhen the process is carried out, the surface of the hot metal ladle 1 is bonded by hard scrap steel or steel slag, and the recovery of the gun body is directly finished, so that the gun body can be effectively protected, and hardware equipment is prevented from being damaged;
6. and when the slag removing end signal comes, the air blowing slag removing gun 5 retracts and returns the angle, the transverse moving mechanism returns, and the whole process is ended.
The invention develops an angle self-adaptive air blowing and slag removing system under the condition of high scrap ratio, the whole system has simple structure and reliable control, and the whole process does not need human intervention; the automatic identification of the distance between the molten iron and the ladle edge can be realized through the camera and the image identification, the automatic control of the optimal inclination angle of the molten iron ladle under different molten iron weight conditions is met, and the real-time measurement of the tilting angle of the molten iron ladle can be realized through the angle meter; the system can realize automatic calculation of the moving distance of the horizontal fixed frame according to the inclination angle of the molten iron tank and can realize real-time monitoring of the moving distance through the displacement sensor; the transverse moving driving system can realize the rapid transverse movement of the whole air blowing and slag removing system; the system can realize the automatic calculation of the insertion distance of the air blowing slag-removing gun according to the inclination angle of the hot-metal ladle, and avoids the situation that the gun body is bent or the transmission system is damaged due to the forced insertion of the air blowing slag-removing gun through the comparison of pressure signals, wherein hard scrap steel or steel slag is adhered to the surface of the hot-metal ladle.
Although the present invention has been described herein with reference to the illustrated embodiments thereof, which are intended to be preferred embodiments of the present invention, it is to be understood that the invention is not limited thereto, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.
Claims (5)
1. The utility model provides an angle self-adaptation under high scrap ratio condition blows and catches up sediment system which characterized in that: the hot metal ladle comprises a hot metal ladle for containing hot metal, trunnions are arranged on two sides of the hot metal ladle, an angle gauge is arranged on the hot metal ladle, and the hot metal ladle also comprises an air blowing slag removing system, wherein the air blowing slag removing system comprises an air blowing slag removing gun which is fixed through a gun body fixing frame, a gun body rotating mechanism is arranged on the gun body fixing frame, a gun body lifting system and a pressure sensor are arranged at the rear end of the air blowing slag removing gun, the gun body rotating mechanism is connected with a transverse moving mechanism through a connecting support, the transverse moving mechanism is arranged in a horizontal fixing frame and connected with a transverse moving driving system, a displacement sensor is arranged at the end part of the transverse moving mechanism, and the horizontal fixing frame is arranged on a support; a camera is also arranged above the hot metal ladle.
2. The angle adaptive air blowing and slag removing system under the condition of high scrap ratio as claimed in claim 1, wherein:
the trunnion realizes the rotation of hot metal bottle angle under the drive of tipping device.
3. The angle adaptive air blowing and slag removing system under the condition of high scrap ratio as claimed in claim 1, wherein:
one end of the strut is fixed on the foundation, and the other end of the strut is fixed with a horizontal fixing frame.
4. An angle self-adaptive air blowing and slag removing method under the condition of high scrap ratio is characterized by comprising the following steps:
1) after the hot metal ladle reaches the slag skimming position, the tilting system drives the hot metal ladle to rotate along the central line of the trunnion, the camera detects the distance between the hot metal and the edge of the hot metal ladle in real time, when the detected distance is less than or equal to 50mm or the inclination angle a of the hot metal ladle is less than 50 degrees, the tilting system stops tilting, the position of the hot metal ladle is locked by utilizing a band-type brake, and the next step is carried out; if the distance between the molten iron and the edge of the hot metal ladle is detected to be more than 50mm and the inclination angle a of the hot metal ladle is detected to be more than or equal to 50 degrees, the tilting system continuously tilts; a is the inclination angle of the hot metal ladle and the horizontal plane, and is measured by an angle meter in real time;
2) the transverse moving driving system is started and drives the transverse moving mechanism to move leftwards, and the calculation formula of the moving distance set value S is as follows:
wherein L is the horizontal distance between the center line of a trunnion of the hot metal ladle and the center line of an upright post, H is the vertical distance between the center line of the trunnion of the hot metal ladle and the center line of a traversing mechanism, L1 is the horizontal distance between the rotating center point of the air blowing slag removing gun and the center line of the upright post under the initial condition, D is the distance between the center line of the final position of the air blowing slag removing gun and the outer edge of the hot metal ladle, and C is the outer diameter of the hot metal ladle;
in the moving process of the transverse moving mechanism, a displacement sensor arranged on a transverse moving driving system detects the moving distance in real time, and when the moving distance reaches a set value S, the transverse moving mechanism stops operating to carry out the next step;
3) starting an air source of the air blowing slag removing gun and supplying air to the air blowing slag removing gun;
4) the gun body fixing frame is vertical to the traversing mechanism in an initial state, and the air blowing slag removing gun is also vertical to the traversing mechanism; when receiving a gun body rotation signal, the gun body fixing frame rotates clockwise under the action of the gun body rotating mechanism, and when the rotating angle reaches (90-a) °, the gun body fixing frame stops rotating to perform the next step;
5) the gun body lifting system pushes the air blowing slag removing gun to descend, and the calculation formula of the extension distance set value E is as follows:
wherein H2 is the vertical distance between the trunnion of the hot metal ladle and the edge of the ladle, H1 is the distance between the top (lowest point) of the air blowing slag-removing gun and the central line of the horizontal fixed frame, TIs provided withA depth set value for inserting the air blowing slag removing gun below the liquid level of the molten iron;
when the extending distance reaches a set value E, stopping the gun body lifting system to operate, and carrying out the next step; in the descending process of the gun body, the pressure of the gun body is detected in real time through a pressure sensor, and when the pressure of the gun body exceeds a set value FIs provided withWhen the process is carried out, the hard scrap steel or steel slag is bonded on the surface of the hot metal ladle, and the recovery of the gun body is directly finished, so that the gun body can be effectively protected, and hardware equipment is prevented from being damaged;
6) and when a slag removing end signal arrives, the air blowing slag removing gun retracts and returns the angle, the transverse moving mechanism returns, and the whole process is ended.
5. The angle adaptive air blowing and slag removing method under the condition of high scrap ratio as claimed in claim 4, wherein the angle adaptive air blowing and slag removing method comprises the following steps:
the depth set value TIs provided withThe value of (A) is 800mm to 1500 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734030A (en) * | 2022-03-23 | 2022-07-12 | 武汉钢铁有限公司 | Full-flow unmanned intelligent slag skimming system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2797380Y (en) * | 2005-02-06 | 2006-07-19 | 宝山钢铁股份有限公司 | Device for scooping up slag |
| CN107142357A (en) * | 2017-05-25 | 2017-09-08 | 武汉钢铁有限公司 | Blow poly- slag top angle-inserting type spray gun, preparation method and application method |
| CN107447069A (en) * | 2016-05-30 | 2017-12-08 | 宝山钢铁股份有限公司 | A kind of rotary blowing slag-removing device |
| JP2018113807A (en) * | 2017-01-13 | 2018-07-19 | 東日本旅客鉄道株式会社 | Snow removal cover for pantagraph |
| CN112017145A (en) * | 2019-05-31 | 2020-12-01 | 宝山钢铁股份有限公司 | Efficient molten iron pretreatment automatic slag skimming method and system |
-
2021
- 2021-05-26 CN CN202110575281.3A patent/CN113430324A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2797380Y (en) * | 2005-02-06 | 2006-07-19 | 宝山钢铁股份有限公司 | Device for scooping up slag |
| CN107447069A (en) * | 2016-05-30 | 2017-12-08 | 宝山钢铁股份有限公司 | A kind of rotary blowing slag-removing device |
| JP2018113807A (en) * | 2017-01-13 | 2018-07-19 | 東日本旅客鉄道株式会社 | Snow removal cover for pantagraph |
| CN107142357A (en) * | 2017-05-25 | 2017-09-08 | 武汉钢铁有限公司 | Blow poly- slag top angle-inserting type spray gun, preparation method and application method |
| CN112017145A (en) * | 2019-05-31 | 2020-12-01 | 宝山钢铁股份有限公司 | Efficient molten iron pretreatment automatic slag skimming method and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734030A (en) * | 2022-03-23 | 2022-07-12 | 武汉钢铁有限公司 | Full-flow unmanned intelligent slag skimming system |
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