CN116694860A - Automatic slag dragging equipment, molten iron transferring and transporting system and automatic slag dragging method - Google Patents

Abstract

The invention relates to automatic slag dragging equipment, a molten iron transferring and transporting system and an automatic slag dragging method. The automatic slag dragging equipment comprises a slag dragging station, wherein the slag dragging station is arranged at a set position of a transfer rail from an ironmaking position to a steelmaking position, and the slag dragging station is provided with a stop position of the ladle car; the automatic slag dragging equipment is provided with a slag dragging mechanism and a first detection device at a slag dragging station; the slag dragging mechanism is used for dragging out iron slag from the molten iron container and transferring the dragged-out iron slag into a preset iron slag container; the first detection device is used for detecting whether the ladle car moves to the slag dragging station. According to the automatic slag dragging equipment, in the slag dragging operation process, a slag dragging station is not required to be established without lifting a molten iron container and pouring molten iron, so that the cost is reduced; the time required for operation is less, which is helpful for maintaining the temperature of the molten iron; the equipment risk, misoperation and safety risk brought by the equipment risk and the misoperation can be reduced; and the loss of molten iron can be reduced, and the iron loss is reduced.

Description

Automatic slag dragging equipment, molten iron transferring and transporting system and automatic slag dragging method

Technical Field

The invention relates to the technical field of steel smelting, in particular to automatic slag dragging equipment, a molten iron transferring and transporting system and an automatic slag dragging method.

Background

In the field of ferrous metallurgy, both iron and steel making are important and have a close relationship. The molten iron smelted by the steel mill is sourced from the iron mill, and the process of removing iron slag is generally needed before entering the steel mill for smelting, because the quality of the molten iron largely determines the quality of molten steel after smelting by the steel mill, and meanwhile, the smooth operation of the steelmaking process is directly influenced, if the content of the iron slag in the molten iron is excessive, the sulfide inclusion in the iron slag easily causes cracks of casting blanks during steelmaking, influences the surface quality of the casting blanks, and influences continuous casting forward operation in serious cases, so that casting blank steel leakage is caused, and the casting blank yield and yield are reduced. The modern industry has higher and higher requirements on the quality of steel materials, the steel materials are required to have high cleanliness, high strength and other performances, and the slag removal of molten iron is one of the key technologies and important starting points of a clean steel production platform, and is a technical guarantee for realizing the full continuous casting, continuous casting and rolling and hot charging and hot feeding processes.

In the existing molten iron deslagging process, deslagging is a main deslagging mode, and the deslagging mode has the following problems:

Firstly, the slag removing mode needs to adopt a fixed rack to remove slag, the hot metal ladle needs to be lifted for a plurality of times, and the hot metal ladle needs to be tilted by a device in the slag removing process, so that a slag removing station is basically newly built, and the cost investment is high; and the intermediate treatment process is added, so that the smelting time of molten iron is prolonged, and the temperature of the molten iron is greatly reduced.

Secondly, as the hot metal ladle is hoisted back and forth under the crown block, the safety risk of personnel and equipment under the crown block is increased; in addition, equipment faults and misoperation exist in the tipping process, so that molten iron is excessively poured out, iron loss is serious, and a large potential safety hazard exists.

Disclosure of Invention

The invention provides automatic slag dragging equipment, a molten iron transferring and transporting system and an automatic slag dragging method, which are used for solving at least one technical problem in the prior art.

The invention provides automatic slag dragging equipment which comprises a slag dragging station, wherein the slag dragging station is arranged at a set position of a transfer rail from an ironmaking position to a steelmaking position, and is provided with a stop position of a ladle car; the automatic slag dragging equipment is provided with a slag dragging mechanism and a first detection device at the slag dragging station; the slag scooping mechanism is used for scooping out iron slag from a molten iron container arranged on the molten iron tank car and transferring the scooped iron slag into a preset iron slag container; the first detection device is used for detecting whether the ladle car moves to the slag dragging station.

Wherein, the automatic slag dragging equipment also comprises a first driving mechanism and a second driving mechanism; the first driving mechanism is connected with the slag dragging mechanism and is used for driving the slag dragging mechanism to move to a first position and a second position in the horizontal direction, wherein the first position is a position corresponding to a molten iron container on the molten iron ladle car in a stop position in the vertical direction, and the second position is a position corresponding to a preset molten iron container in the vertical direction; the second driving mechanism is connected with the slag dragging mechanism and used for driving the slag dragging mechanism to move up and down along the vertical direction.

Wherein, the automatic slag dragging equipment also comprises a second detection device and a controller; the second detection device is used for detecting the liquid level height of molten iron in a molten iron container on the molten iron tank car; the controller obtains the detection result of the second detection device, and controls the second driving mechanism to drive the slag dragging mechanism to lift at the stop position according to the detection result.

The automatic slag dragging equipment comprises a third detection device, wherein the third detection device is an image acquisition device, and the image acquisition device is used for acquiring an image of the molten iron liquid level in a molten iron container on the molten iron tank car so as to determine the content of the molten iron slag in the molten iron container according to the acquired image.

The automatic slag dragging equipment comprises a fourth detection device, wherein the fourth detection device is used for detecting the quantity of the iron slag stored in the iron slag container.

The fourth detection device acquires the first parameter and the second parameter to determine the amount of the iron slag stored in the iron slag container according to the first parameter and the second parameter; the first parameter is the distance between the high point position of the iron slag in the iron slag container and the top of the iron slag container in the vertical direction, and the second parameter is the distance between the high point position of the iron slag and the edge of the iron slag container in the horizontal direction.

The automatic slag dragging equipment comprises a fifth detection device, wherein the fifth detection device is an image acquisition device, and the image acquisition device is used for acquiring images of the slag dragging mechanism so as to determine the loss degree of the slag dragging mechanism according to the acquired images.

Wherein, the iron slag container is arranged on the ladle car, or the iron slag container is arranged outside the transfer track.

The invention provides a molten iron transferring and transporting system which comprises a transferring rail, a molten iron tank car and automatic slag dragging equipment; the transfer rail is connected between the ironmaking position and the steelmaking position; the ladle car is arranged on the transfer rail and can move between the ironmaking position and the steelmaking position along the transfer rail; the ladle car is provided with a molten iron container; the automatic slag dragging equipment is used for carrying out slag dragging operation on molten iron in a molten iron container on the molten iron tank car, and the automatic slag dragging equipment adopts the automatic slag dragging equipment.

The invention provides an automatic slag dragging method, which comprises the following steps:

a step of entering a station: controlling a ladle car moving along the transfer track to a steelmaking position to enter a slag dragging station;

a liquid level detection step: detecting the liquid level height in the molten iron container;

slag fishing: controlling the slag scooping mechanism to descend to a set height, scooping slag from the iron slag in the molten iron container on the molten iron tank car, and removing the scooped iron slag from the molten iron container;

iron slag detection: detecting the iron slag content in the molten iron container, if the iron slag content in the molten iron container is higher than a set value, repeatedly executing the slag dragging step, and if the iron slag content in the molten iron container is lower than the set value, executing the subsequent station leaving step;

leaving the station: and controlling the ladle car to continuously move to a steelmaking position along the transfer track.

In the step of detecting the iron slag, an image of the liquid level in the molten iron container is collected, and the iron slag content in the molten iron container is judged according to the collected image.

Compared with the prior art, the automatic slag dragging equipment, the molten iron transferring and transporting system and the automatic slag dragging method provided by the invention have the following advantages:

the automatic slag dragging equipment provided by the invention detects whether the ladle car moves to the slag dragging station through the first detection device, and can stop the ladle car at the slag dragging station for a period of time in the process of moving the ladle car to the steelmaking position, in the period of time, the slag dragging mechanism drags iron slag in the molten iron container, and moves to the slag container to transfer the dragged iron slag into the slag container, so that the content of the iron slag in the molten iron container is lower than a set value, and the requirement of steelmaking is met. In the slag dragging operation process, the molten iron container is kept motionless, the molten iron container does not need to be lifted, and molten iron in the molten iron container does not need to be poured. On one hand, the slag skimming station is not required to be established, so that the cost can be remarkably reduced; on the other hand, under the condition that the molten iron in the molten iron container is not required to be poured, the slag dragging operation process can be automatically realized, the required time is less, and the time required for the molten iron in the molten iron container to go from an ironmaking position to a steelmaking position is shorter, so that the temperature of the molten iron can be maintained, and the obvious reduction of the temperature of the molten iron is avoided; in a third aspect, it is understood that there is a great safety risk in handling the molten iron container and pouring the molten iron in the molten iron container, and in the present invention, there is no need to handle the molten iron container and pour the molten iron in the molten iron container, so that the risk of equipment, misoperation, and the safety risk caused thereby can be reduced; in the fourth aspect, the loss of molten iron and the iron loss can be reduced without pouring the molten iron in the molten iron container.

The molten iron transferring and transporting system and the automatic slag scooping method provided by the invention have the technical characteristics corresponding to the automatic slag scooping equipment, have the beneficial effects consistent with the automatic slag scooping equipment, and are not repeated.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic diagram of an application state of an automatic slag scooping device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an automatic slag scooping apparatus (not shown) according to an embodiment of the present invention;

fig. 3 to 10 are schematic views illustrating a state of the automatic slag scooping apparatus for slag scooping operation according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a replacement slag mechanism in an embodiment of the present invention;

FIG. 12 is a schematic view of detecting the amount of iron slag in the iron slag container by using the fourth detecting device according to the embodiment of the present invention;

FIG. 13 is a schematic view of the old slag removing mechanism according to the embodiment of the present invention;

FIG. 14 is a schematic view of a new slag mechanism installed in an embodiment of the present invention;

fig. 15 is a schematic flow chart of an automatic slag scooping method according to an embodiment of the present invention.

In the figure:

1-an iron-making position; 2-steelmaking position; 3-a transfer track; 4, a slag dragging station; 5-a ladle car; 6-a molten iron container; 7-an iron slag container; 8-a slag plate vehicle;

10-a slag dragging mechanism; 11-a first drive mechanism; 12-a second drive mechanism; 13-a first detection device; 14-a second detection device; 15-a third detection device; 16-fourth detection means; 17-a camera;

81-quick change handle; 82-electric hoist; 83-track.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Embodiments of an automatic slag scooping device, a molten iron transferring and transporting system and an automatic slag scooping method provided by the invention are described below with reference to the accompanying drawings.

In one embodiment of the automatic slag scooping apparatus of the present invention, referring to fig. 1 and 2, the automatic slag scooping apparatus includes a slag scooping station 4, the slag scooping station 4 is disposed at a set position of a transfer rail 3 from an ironmaking position 1 to a steelmaking position 2, and the slag scooping station 4 is provided with a stop position of a ladle car 5. The automatic slag scooping device is provided with a slag scooping mechanism 10 and a first detection device 13 at the slag scooping station 4. The slag scooping mechanism 10 is used for scooping out iron slag from a molten iron container 6 arranged on the molten iron tank truck 5 and transferring the scooped iron slag into a preset iron slag container 7. The first detecting device 13 is used for detecting whether the ladle car 5 moves to the slag scooping station 4.

Specifically, the slag scooping station 4 may further be provided with a first driving mechanism 11 and a second driving mechanism 12, and the first driving mechanism 11 and the second driving mechanism 12 are connected with the slag scooping mechanism 10. The first driving mechanism 11 is used for driving the slag scooping mechanism 10 to move to a first position and a second position in the horizontal direction, wherein the first position is a position corresponding to the molten iron container 6 on the molten iron tank truck 5 in the stop position in the vertical direction, and the slag scooping mechanism 10 scoops out the molten iron from the molten iron container 6 in the first position; the second position is a position corresponding to the preset iron slag container 7 in the vertical direction, and the slag scooping mechanism 10 places the scooped-out iron slag into the iron slag container 7 at the second position. The second driving mechanism 12 is used for driving the slag scooping mechanism 10 to move up and down along the vertical direction, when the slag scooping mechanism 10 scoops out the iron slag from the molten iron container 6 or places the fished-out iron slag into the iron slag container 7, the second driving mechanism 12 drives the slag scooping mechanism 10 to move along the vertical direction, so that the slag scooping mechanism 10 can approach to the directions of the molten iron container 6 and the iron slag container 7, and slag scooping and slag discharging are convenient.

In this embodiment, the slag scooping station 4 may be embodied as a gantry provided at a set position of the transfer rail 3. The slag mechanism 10, the first driving mechanism 11, the second driving mechanism 12, etc. may be provided on the gantry. The slag scooping mechanism 10 may be a slag scooping plate, and the first driving mechanism 11 may be a linear moving platform (e.g., a trolley, a slider, etc.) disposed on a gantry. The second driving mechanism 12 may be specifically configured by an air cylinder or an oil cylinder provided on the linear motion platform. The first detection device 13 may specifically be an ultrasonic sensor, which can detect whether the ladle car 5 is in the slag scooping station 4 by means of emitting ultrasonic waves.

However, in actual implementation, the slag scooping station 4, the slag scooping mechanism 10, the first driving mechanism 11, the second driving mechanism 12, and the first detecting device 13 may be configured in other manners, and are not limited to the foregoing configuration.

The following describes and explains the process of the slag scooping operation by the automatic slag scooping apparatus of the present embodiment.

First, a ladle 6 on a ladle car 5 is filled with molten iron at an ironmaking location 1, and after the completion of the molten iron injection, the ladle car 5 is moved along a transfer rail 3 toward a steelmaking location 2. Since the slag scooping station 4 is provided on the transfer rail 3, the ladle car 5 passes through the slag scooping station 4 during the movement. When the ladle car 5 passes through the slag scooping station 4, the ladle car 5 is controlled to stop at a stop position in the slag scooping station 4.

In the course of the movement of the ladle car 5 along the transfer rail 3, the first detecting device 13 may detect whether the ladle car 5 moves to the slag scooping station 4. Specifically, in the process that the ladle car 5 moves into the slag scooping station 4 and continues to move, the first detection device 13 can detect that the ladle car 5 moves to the stop position, when the first detection device 13 detects the information, the information is sent to the control mechanism, and the control mechanism can give out an instruction to control the ladle car 5 to stop moving, so that the ladle car 5 can be accurately stopped at the stop position arranged in the slag scooping station 4. In practical implementation, considering that the ladle car 5 needs a certain distance from moving to stationary, the distance may be considered in the relative positional relationship between the stop position and the first detection device 13, that is, the first detection device 13 may be disposed at a position slightly before the stop position (the first detection device 13 is closer to the ironmaking position 1, and the stop position is closer to the steelmaking position 2).

In addition, the first detection device 13 may also detect whether the ladle car 5 moves to a stop position in the slag scooping station 4; in this case, the ladle car 5 itself is pre-implanted with a stop position and an instruction to stop at the stop position, which can automatically stop at the stop position in the slag scooping station 4 during movement. The first detection device 13 is used for detecting the ladle car 5 and determining whether the ladle car 5 is actually stopped at a stop position in the slag scooping station 4; if the first detecting means 13 detects that the ladle car 5 is not at the stop position, it indicates that the movement of the ladle car 5 is unexpected in the stop process, and at this time, manual intervention and correction or other treatment are required.

Second, the first driving mechanism 11 controls the slag mechanism 10 to move horizontally, and the slag mechanism 10 is moved to the first position. When the ladle car 5 is stopped at the stop position in the slag scooping station 4, the slag scooping mechanism 10 in the first position is located directly above the molten iron container 6 as shown in fig. 3. The movement of the first driving mechanism 11 to the slag scooping mechanism 10 and the movement of the ladle car 5 to the stop position in the slag scooping station 4 can be performed in parallel or sequentially in any order.

Third, after the ladle car 5 is stopped at the stop position in the slag scooping station 4 and the slag scooping mechanism 10 is in the first position, as shown in fig. 3 and 4, the second driving mechanism 12 controls the slag scooping mechanism 10 to move downward into the molten iron container 6, and scoops up the slag in the molten iron container 6. Thereafter, the second driving mechanism 12 controls the slag mechanism 10 to move upward to a position higher than the molten iron container 6.

Fourth, the first drive mechanism 11 controls the slag mechanism 10 and the second drive mechanism 12 to move horizontally, moving the slag mechanism 10 and the second drive mechanism 12 to the second position, as shown in fig. 5. The slag mechanism 10 and the second drive mechanism 12 in the second position are located directly above the slag container 7.

Fifth, after the slag mechanism 10 and the second driving mechanism 12 are in the second position, the second driving mechanism 12 controls the slag mechanism 10 to move downward as shown in fig. 6 so as to approach the slag container 7 in the vertical direction, reducing the distance between the slag mechanism 10 and the slag container 7. After that, the slag scooping mechanism 10 releases the slag scooped from the molten iron container 6, and the slag is separated from the slag scooping mechanism 10 and transferred and stored in the slag container 7. Thereafter, the second driving mechanism 12 controls the slag mechanism 10 to move upward, as shown in fig. 7, so as to avoid interference between the slag mechanism 10 and the slag container 7 or other structures.

In this fifth process, the second driving mechanism 12 may not control the slag-dragging mechanism 10 to descend, and accordingly, the slag-dragging mechanism 10 does not need to be controlled to ascend, and the slag-dragging mechanism 10 releases and transfers the slag into the slag container 7 at the original height. In this case, the distance between the slag mechanism 10 and the slag container 7 is large, and the slag separated from the slag mechanism 10 is easily moved to the outside of the slag container 7. To avoid this, it is preferable to control the lowering and raising of the slag mechanism 10 by the second driving mechanism 12 in practical implementation.

Sixth, the first drive mechanism 11 controls the slag mechanism 10 and the second drive mechanism 12 to move horizontally, and the slag mechanism 10 and the second drive mechanism 12 are moved again to the first position, as shown in fig. 8.

If the iron slag content in the molten iron container 6 is still higher than the set value after the above-mentioned third process, the slag scooping mechanism 10 and the second driving mechanism 12 returning to the first position repeat the above-mentioned third to fifth processes, as shown in fig. 9 and 10, to scoop iron slag from the molten iron container 6 and transfer the iron slag into the iron slag container 7 so that the iron slag in the molten iron container 6 is continuously reduced until the iron slag content in the molten iron container 6 is lower than the set value.

If the iron slag content in the molten iron container 6 is lower than the set value after the first time of the iron slag taking out of the molten iron container 6 by the slag taking-out mechanism 10 in the third process, the slag taking-out mechanism 10 and the second driving mechanism 12 returning to the first position again in the sixth process can wait for the slag taking-out operation of the molten iron tank truck 5 reaching the slag taking-out station 4 next without repeating the third to fifth processes.

Seventh, when the iron slag content in the molten iron container 6 is lower than the set value, it means that the molten iron in the molten iron container 6 meets the set requirement of steelmaking, at this time, the ladle car 5 can move out from the slag scooping station 4 and move towards the steelmaking position 2, and after reaching the steelmaking position 2, the molten iron in the molten iron container 6 is output for further smelting into steel.

If the slag content in the molten iron container 6 is still higher than the set value after the third process, the third to fifth processes are repeated in the sixth process, and the removal of the ladle car 5 from the slag removal station 4 in the seventh process is performed after the sixth process.

If the first time of the slag retrieval of the slag in the molten iron container 6 by the slag retrieval mechanism 10 in the third process is performed, the slag retrieval station 4 is moved out of the ladle car 5 in the seventh process, and the third process or the fifth process (described later) is performed without waiting for the sixth process. In the case where it is necessary to repeat the third to fifth processes, since the iron slag content in the molten iron container 6 is already lower than the set value at this time after the last slag scooping operation from the molten iron container 6, it is also possible to perform the third or fifth process after the last time without waiting for the sixth process to be performed for the last time.

Additionally, if the iron slag content in the molten iron container 6 is lower than the set value before the third process described above, that is, before the slag scooping mechanism 10 performs the first scooping of the iron slag in the molten iron container 6, this indicates that the molten iron container 6 is filled with a small amount of impurities from the ironmaking site 1, and at this time, the ladle car 5 may be moved directly out of the slag scooping station 4 to the steelmaking site 2 before the third process without scooping the slag at the slag scooping station 4.

In the process of the slag dragging, a worker can watch the concrete process of slag dragging through the camera 17 arranged at the slag dragging station 4, and each link, each device and each mechanism of the slag dragging process can be controlled and adjusted in time according to the observed picture.

The above description of the process of the slag scooping operation by the automatic slag scooping apparatus in this embodiment is merely exemplary, and the above description is merely for explaining that the slag in the molten iron container 6 on the ladle car 5 can be fished out so that the slag content in the molten iron container 6 is lower than the set value based on the foregoing structure in this embodiment. In practical implementation, based on the foregoing structure in this embodiment, the slag scooping operation may be performed in the same, similar or different manner as the above-described process.

The automatic slag scooping device in the embodiment detects whether the ladle car 5 moves to the slag scooping station 4 through the first detection device 13; in the process of moving the ladle car 5 to the steelmaking position 2, the ladle car 5 can be controlled to stop at the slag-fishing station 4 when passing through the slag-fishing station 4, in the stop time, the slag-fishing mechanism 10 drags iron slag in the molten iron container 6 and moves to the slag container 7 to transfer the dragged iron slag into the slag container 7, so that the iron slag content in the molten iron container 6 is lower than a set value, and the requirement of steelmaking is met. In the slag scooping operation, the molten iron container 6 is kept still, the molten iron container 6 is not required to be lifted, and molten iron in the molten iron container 6 is not required to be poured. On one hand, the slag skimming station is not required to be established, so that the cost can be remarkably reduced; on the other hand, under the condition that the molten iron in the molten iron container 6 is not required to be poured, the slag dragging operation process can be automatically realized, the required time is less, and the time required for the molten iron in the molten iron container 6 to go from the ironmaking position 1 to the steelmaking position 2 is shorter, so that the temperature of the molten iron can be maintained, and the obvious reduction of the temperature of the molten iron is avoided; in a third aspect, it is understood that there is a great safety risk in handling the molten iron container 6 and pouring the molten iron in the molten iron container 6, and that in the present embodiment there is no need to handle the molten iron container 6 and there is no need to pour the molten iron in the molten iron container 6, so that the risk of equipment, misoperation, and the safety risk caused thereby can be reduced; in the fourth aspect, the loss of molten iron and the iron loss can be reduced without pouring the molten iron in the molten iron container 6.

In one embodiment of the automatic slag scooping apparatus, the automatic slag scooping apparatus further includes a second detection device 14 and a controller; the second detecting device 14 is used for detecting the liquid level height of molten iron in the molten iron container 6 on the molten iron ladle car 5. The controller acquires the detection result of the second detection device 14, and controls the second driving mechanism 12 to drive the slag dragging mechanism 10 to lift at the stop position according to the detection result.

In particular, the second detection means 14 may be a level radar. The liquid level radar can effectively detect the liquid level height of molten iron.

The inventors of the present invention found that the depth to which the slag scooping mechanism 10 is inserted into the molten iron container 6 below the level of molten iron during the slag scooping operation is directly related to the efficiency of scooping up the slag and the amount of molten iron that is scooped up in addition. Specifically, when the depth of insertion of the slag scooping mechanism 10 is large, on the one hand, more slag can be scooped up, but on the other hand, more molten iron can be scooped up additionally, resulting in more molten iron loss; on the one hand, when the depth of insertion of the slag scooping mechanism 10 is smaller, on the other hand, the amount of the iron slag scooped up is smaller, and more slag scooping operations are needed to reduce the iron slag content in the molten iron container 6 below the set value, on the other hand, the amount of the molten iron carried out in each slag scooping operation is smaller, but the amount of the molten iron carried out in more slag scooping operations is also larger.

The inventors of the present invention have also found that the amount of molten iron to be poured into each of the molten iron containers 6 may be different at a time, that is, the level of the molten iron containers 6 on each ladle car 5 entering the slag trap station 4 is not the same. In this case, when the slag scooping operation is performed on the molten iron containers 6 of the different ladle trucks 5 that enter the slag scooping station 4, if the second driving mechanism 12 controls the slag scooping mechanism 10 to descend by the same distance, the insertion depth of the slag scooping mechanism 10 may be excessively large or excessively small.

In this embodiment, before each ladle car 5 enters the stop position of the slag scooping station 4, the second detection device 14 detects the liquid level of molten iron in the molten iron container 6, and when the second driving mechanism 12 drives the slag scooping mechanism 10 to descend in the subsequent slag scooping operation, the descending distance of the slag scooping mechanism 10 can be correspondingly changed according to the detected liquid level of molten iron in the molten iron container 6, so as to ensure that the depth of the slag scooping mechanism 10 inserted into the molten iron liquid level is within a set value in each slag scooping operation. Specifically, when the level of molten iron in the molten iron container 6 is higher, the second driving mechanism 12 can drive the slag dragging mechanism 10 to descend by a smaller distance, so as to avoid that the depth of the slag dragging mechanism 10 inserted into the molten iron level exceeds a set value; when the level of molten iron in the molten iron container 6 is low, the second driving mechanism 12 can drive the slag dragging mechanism 10 to descend by a larger distance, so that the slag dragging mechanism 10 is prevented from being inserted into the molten iron level to a depth smaller than a set value.

In this embodiment, it is preferable to control the depth of insertion of the slag-taking mechanism 10 below the molten iron level to 20±2 cm, and experimental results prove that the slag-taking mechanism 10 has high efficiency of taking out the slag in the molten iron container 6 at this depth of insertion while the amount of the carried-out molten iron is within an acceptable range.

In one embodiment of the automatic slag scooping apparatus, the automatic slag scooping apparatus includes a third detecting device 15, and the third detecting device 15 is an image capturing device for capturing an image of the molten iron level in the molten iron container 6 on the ladle car 5 to determine the content of the molten iron slag in the molten iron container 6 according to the captured image.

For the molten iron container 6, the iron slag mainly floats on the liquid surface of the molten iron; and, the molten iron and the iron slag have different morphological characteristics, for example, the iron slag is solid and the molten iron is liquid; the iron slag is darker in color and blackish, while the iron water is lighter in color and reddish. Collecting an image of the liquid level of the molten iron container 6, wherein the image contains iron slag; the above-described difference between the molten iron and the slag is represented in the image. So that the amount of the iron slag in the molten iron container 6 can be read out according to the acquired liquid level image of the molten iron container 6. Specifically, in the collected liquid surface image of the molten iron container 6, when the area of the black region representing the iron slag is relatively large, it is indicated that the iron slag content in the molten iron container 6 is high, and when the area of the black region is relatively small, it is indicated that the iron slag content in the molten iron container 6 is low.

Specifically, the area ratio of the black region representing the slag in the acquired image may be set to a certain ratio, corresponding to the slag content existing in the molten iron container 6. The ratio may be determined to be 20%, for example. When the area ratio of the black area representing the iron slag in the acquired image is higher than 20%, the iron slag content in the molten iron container 6 still does not meet the requirement of steelmaking, and slag dragging operation is needed to be carried out or carried out again; when the area ratio of the black area in the acquired image is lower than 20%, the iron slag content in the molten iron container 6 is small enough to meet the steel-making requirement, slag dragging operation is not needed at this time, and the molten iron tank truck 5 can move out of the slag dragging station 4 and move towards the steel-making position 2.

Specifically, in this embodiment, after the image of the molten iron level in the molten iron container 6 is acquired by the image acquisition device, the acquired image may be manually read, or the image may be passed to the image processing apparatus to read the information contained in the image. In practice, the acquired images are preferably read by an image processing apparatus, so that the area ratio of the slag on the liquid surface of the molten iron container 6 can be automatically determined, and the area ratio determined by the image processing apparatus can be more accurate.

In one embodiment of the automatic slag scooping apparatus, the automatic slag scooping apparatus includes a fourth detecting device 16, the fourth detecting device 16 being configured to detect an amount of slag stored in the slag container 7.

In this embodiment, by providing the fourth detecting device 16, the amount of the iron slag stored in the iron slag container 7 can be detected, and when the amount of the iron slag stored in the iron slag container 7 is large, the iron slag stored in the iron slag container 7 can be correspondingly subjected to dumping treatment, and the iron slag container 7 is emptied, so that when the iron slag in the iron slag container 7 is large or full, the slag scooping mechanism 10 can be prevented from continuing to transfer the iron slag into the iron slag container 7, and the situation that the iron slag overflows occurs can be avoided.

In this embodiment, the amount of slag in the slag container 7 may be measured in weight, volume or height, etc. The fourth detection means 16 may, when measured in terms of weight, select a weight sensor, which is arranged for example at the bottom of the slag container 7. The fourth detecting device 16 may be selected as an image collecting device, which collects images of the slag container 7, and determines whether slag is full in the slag container 7 according to reading of the collected images; or the fourth detecting means 16 may be selected as a distance sensor which may be provided at a position corresponding to or higher than the top of the slag container 7, and when the height of the slag stored in the slag container 7 reaches the top of the slag container 7 or is higher than the top by a certain distance, it may be determined that the slag in the slag container 7 reaches the height according to the detection information of the distance sensor, and the amount of slag in the surface slag container 7 is large, and it is necessary to pour.

Specifically, in one embodiment of the automatic slag scooping apparatus, as shown in fig. 11, the fourth detecting means 16 collects the first parameter a and the second parameter b to determine the amount of slag stored in the slag container 7 according to the first parameter a and the second parameter b. The first parameter a is the distance in the vertical direction between the high point position of the slag in the slag container 7 and the top of the slag container 7, and the second parameter b is the distance in the horizontal direction between the high point position of the slag and the edge of the slag container 7.

In this embodiment, the fourth detecting device 16 may be selected as an image capturing device, and the first parameter a and the second parameter b are obtained by reading the captured image.

It will be appreciated that the slag container 7 has a substantially mountain-shaped structure for the slag stored therein, and the slag mountain has a small upper area, a tip of the slag mountain, and a large lower area, and is a foot of the slag mountain.

The shape of the slag mountain and the relative relation of the slag mountain to the slag container 7 can be more accurately determined according to the first parameter a and the second parameter b, so that whether more slag can be continuously stored in the slag container 7 or not can be more accurately determined, and the situation that the slag is continuously transferred to the slag container 7 when the slag container 7 cannot continuously store more slag, and the slag separated from the slag dragging mechanism 10 falls outside the slag container 7 is avoided.

In one embodiment of the automatic slag scooping apparatus, the automatic slag scooping apparatus includes a fifth detection device, which is an image acquisition device for acquiring an image of the slag scooping mechanism 10 to determine a degree of loss of the slag scooping mechanism 10 according to the acquired image. Specifically, the fifth detecting means and the fourth detecting means may be provided as the same detecting means.

When the slag scooping mechanism 10 is in slag scooping operation, the slag scooping mechanism needs to be immersed in molten iron with high temperature, and the edge of the slag scooping mechanism 10 is gradually ablated when the slag scooping mechanism is contacted with the molten iron, so that the slag scooping effect of the slag scooping mechanism 10 is affected. For example, when the edge of the slag scooping plate is ablated to a certain extent, a gap is formed when the slag scooping plate is closed, iron slag can leak out of the gap, the slag scooping effect is affected, and danger can be generated.

In this embodiment, when determining the loss degree of the slag-cleaning mechanism 10, the overall shape of the slag-cleaning mechanism 10 or the local size data displayed in the image acquired by the fifth detection device may be compared with the initial shape of the slag-cleaning mechanism 10, so as to determine the loss of the slag-cleaning mechanism 10 compared with the initial shape thereof. In this process, the reading of the acquired image and the comparison with the initial form of the slag dragging mechanism 10 can be accomplished by an image processing device.

In this embodiment, the fifth detection device collects the image of the slag-removing mechanism 10, and when the slag-removing mechanism 10 is worn out by molten iron beyond a set value, the slag-removing mechanism 10 with wear out is replaced with a new slag-removing mechanism 10, so that the slag-removing effect can be ensured in the continuous slag-removing operation process, and the operation safety can be ensured. Specifically, the set value may be set to 30%, so that when the loss of the slag dragging mechanism 10 exceeds 30%, it is necessary to replace it; and when the temperature is lower than 30%, the original slag dragging mechanism 10 is continuously used.

In this embodiment, the fifth detection device specifically collects an image of the slag scooping mechanism 10 when the ladle car 5 moves out of the slag scooping station 4 or the ladle car 5 does not enter the slag scooping station 4, in this state, the slag scooping mechanism 10 does not perform slag scooping operation, the iron slag that is scooped in the process of collecting the image does not interfere, the information reflected by the collected image is closer to the real situation, and the loss structure of the slag scooping mechanism 10 obtained in this way is more accurate.

In this embodiment, when the slag dragging mechanism 10 is replaced with a new one, the process may specifically be:

first, when it is determined that the loss of the slag dragging mechanism 10 exceeds the set value based on the image acquired by the fifth detection device, as shown in fig. 12, the slag car 8 is controlled to move below the slag dragging mechanism 10, a new slag dragging mechanism 10 (slag dragging plate) is loaded on the slag car 8, and there is also a space for placing the old slag dragging mechanism 10, that is, there is a space for loading two slag dragging mechanisms 10 on the slag car 8.

The scooter 8 may specifically be a rail vehicle that moves along a particular track 83, which moves along the track 83 to below the slag mechanism 10. Alternatively, the slag car 8 may be a vehicle that can move freely without depending on a specific track, such as a wheeled vehicle; at this time, the slag dragging mechanism 10 may be moved to a suitable position (for example, a position which may be selected to deviate from the transfer rail 3) by the first driving mechanism 11, and the slag vehicle 8 may be controlled to move below the slag dragging mechanism 10, so that the slag vehicle 8 and the slag dragging mechanism 10 are in a corresponding relationship in the vertical direction.

Second, the slag mechanism 10 is controlled to descend to a proper position by the second driving mechanism 12, and then the slag mechanism 10 can be detached from the second driving mechanism 12 by manual or the like using a quick-change handle 81 or the like, as shown in fig. 13, and placed on the slag slab car 8.

Third, the second driving mechanism 12 is moved or the slag car 8 is moved so that the second driving mechanism 12 and a new slag dragging mechanism 10 (slag dragging plate) on the slag car 8 are located at corresponding positions in the vertical direction, and then the new slag dragging mechanism 10 and the second driving mechanism 12 can be fixedly connected by using a quick change handle 81 or the like manually or the like, as shown in fig. 14, so that the replacement of the slag dragging mechanism 10 is completed.

Fourth, the slag car 8 is controlled to leave the slag dragging station 4. The slag car 8 may be provided with a crane, such as an electric hoist 82, etc., by which the old slag scooping mechanism 10 may be lifted off the slag car 8 after leaving from the slag scooping station 4.

In one embodiment of the automatic slag scooping apparatus, the slag container 7 is provided on the ladle car 5; alternatively, the iron slag container 7 is arranged outside the transfer rail 3.

In this embodiment, the slag container 7 moves between the ironmaking position 1 and the steelmaking position 2 with the ladle car 5 while the slag container 7 is provided on the ladle car 5. In this case, when the iron slag content in the molten iron container 6 is lowered to the set value by the slag scooping operation, the slag scooping mechanism 10 needs to transfer the scooped iron slag into the iron slag container 7, and therefore, the slag ladle 5 needs to be kept fixed until the fifth process is completed, and the slag ladle 5 needs to be started to move out of the slag scooping station 4 and move in the direction of the steel making position 2 after the fifth process is completed.

When the slag container 7 is not arranged on the ladle car 5 but is arranged at a fixed position relative to the transfer rail 3 at the slag scooping station 4, the slag container 7 is fixed and does not follow the movement of the ladle car 5 between the ironmaking position and the steelmaking position 2. In this case, when the iron slag content in the molten iron container 6 is reduced to the set value through the slag scooping operation, since both the slag scooping mechanism 10 and the iron slag container 7 are independent of the iron slag ladle 5, the iron slag ladle 5 can be immediately moved out of the slag scooping station 4 and moved toward the steelmaking position 2 directly from the end of the third process described above without waiting for the end of the fifth process to start the movement out of the slag scooping station 4.

In one embodiment of the molten iron transferring and transporting system of the invention, the molten iron transferring and transporting system comprises a transferring rail 3, a molten iron tank truck 5 and automatic slag dragging equipment; wherein the transfer rail 3 is connected between the ironmaking position 1 and the steelmaking position 2; the ladle car 5 is arranged on the transfer rail 3 and can move between the ironmaking position 1 and the steelmaking position 2 along the transfer rail 3; the ladle car 5 is provided with a ladle 6; the automatic slag scooping device is used for scooping slag of molten iron in the molten iron container 6 on the molten iron tank truck 5, and the automatic slag scooping device adopts the automatic slag scooping device described in the above embodiment.

The molten iron transferring and transporting system in this embodiment includes the automatic slag scooping device described in the foregoing embodiment, which naturally has the advantages consistent with the foregoing automatic slag scooping device, and will not be described again.

In one embodiment of the automatic slag scooping method of the present invention, the automatic slag scooping method includes the following steps S1 to S5, as shown in fig. 15.

Step S1, a step of entering a station: and controlling the ladle car 5 moving along the transfer track 3 to the steelmaking position 2 to enter the slag scooping station 4.

A first detection device 13 is arranged in the slag scooping station 4, and the first detection device 13 is used for detecting whether the ladle car 5 is positioned in the slag scooping station 4. Specifically, the first detection device 13 may be an ultrasonic sensor.

In this step S1, the ladle car 5 can autonomously move to a stop position in the slag scooping station 4 and stop. At this time, the first detecting means 13 may be used to verify whether the ladle car 5 is accurately moved to the stop position, and if the stop position is accurately reached, it indicates that the operation is normal, and if the stop position is not accurately reached, it indicates that an abnormality has occurred, at which time manual intervention or other measures are required.

In this step S1, the detection by the first detection device 13 is used during the movement of the ladle car 5 to a stop. Specifically, when the ladle car 5 enters the slag scooping station 4 and continues to move, the first detection device 13 can detect that the ladle car 5 reaches a stop position in the slag scooping station 4, and when the first detection device 13 detects the information, the first detection device sends the information to the control mechanism, and the control mechanism sends an instruction to the ladle car 5 according to the information to control the ladle car 5 to stop, so that the ladle car 5 can be stopped at the stop position.

Step S2, a liquid level detection step: the level of the molten iron in the molten iron container 6 is detected.

In this step S2, the detection of the level of the molten iron in the molten iron container 6 can be achieved by a level radar.

S3, slag dragging: the slag scooping mechanism 10 is controlled to descend to a set height, slag is scooped out of the iron slag in the molten iron container 6 on the molten iron tank truck 5, and the scooped iron slag is moved out of the molten iron container 6.

In this step S3, the set height of the slag mechanism 10 lowered is not an absolute space height value, but is related to the level of molten iron in the molten iron container 6. The set height of the slag mechanism 10 to be lowered is a set distance below the liquid level, for example, 20cm below the liquid level in the molten iron container 6, with the liquid level in the molten iron container 6 as a reference.

In this step S3, according to the detection result regarding the liquid level height detected in step S2, when the liquid level height in the molten iron container 6 is high, the distance by which the slag scooping mechanism 10 is controlled to descend is reduced, and when the liquid level height in the molten iron container 6 is low, the distance by which the slag scooping mechanism 10 is controlled to descend is large, so that no matter where the liquid level height in the molten iron container 6 is, the slag scooping mechanism 10 is ensured to be immersed below the liquid level by a set distance when the slag scooping operation is performed, so that the effect of each slag scooping operation is ensured.

Step S4, iron slag detection: detecting the iron slag content in the molten iron container 6, if the iron slag content in the molten iron container 6 is higher than a set value, repeating the slag dragging step, and if the iron slag content in the molten iron container 6 is lower than the set value, executing the subsequent station-leaving step.

In this step S4, the iron slag content in the molten iron container 6 may be detected specifically as follows: an image of the liquid level in the molten iron container 6 is collected, and the iron slag content in the molten iron container 6 is judged based on the collected image.

The principle and the more detailed process for detecting the iron slag content according to the mode are described in detail in the embodiment of the automatic slag dragging device, and are not repeated.

In this step S4, if the detected result indicates that the iron slag content in the molten iron container 6 is higher than the set value, it indicates that the molten iron in the molten iron container 6 does not meet the requirement of steelmaking at this time, and further reduction of the iron slag content is required, so that the above step S3 is repeated. If the detected result shows that the iron slag content in the molten iron container 6 is lower than the set value, the molten iron in the molten iron container 6 meets the requirement of steelmaking at the moment, and the subsequent step S5 can be executed at the moment.

The step S4 may be performed before the slag scooping operation (before the step S3 or the step S2), and if the detection performed before the slag scooping operation confirms that the iron slag content in the molten iron container 6 is lower than the set value, the slag scooping operation is not required, and the steps S2 and S3 are not required.

Step S5, leaving the station: the ladle car 5 is controlled to move continuously to the steelmaking position 2 along the transfer track 3.

After the step S4, the molten iron in the molten iron container 6 on the ladle car 5 has already satisfied the steelmaking requirement, in which case the molten iron in the molten iron container 6 can be smelted into steel after the ladle car 5 moves to the steelmaking location 2 in the step S5.

The automatic slag scooping method provided by the embodiment of the invention has the technical characteristics corresponding to the automatic slag scooping equipment and the molten iron transferring and transporting system described in the above embodiment, and can achieve the beneficial effects consistent with the automatic slag scooping equipment and the molten iron transferring and transporting system, and is not repeated.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. The automatic slag dragging equipment is characterized by comprising a slag dragging station, wherein the slag dragging station is arranged at a set position of a transfer rail from an ironmaking position to a steelmaking position, and is provided with a stop position of a ladle car;

the automatic slag dragging equipment is provided with a slag dragging mechanism and a first detection device at the slag dragging station; the slag scooping mechanism is used for scooping out iron slag from a molten iron container arranged on the molten iron tank car and transferring the scooped iron slag into a preset iron slag container; the first detection device is used for detecting whether the ladle car moves to the slag dragging station.

2. The automatic slag scooping apparatus of claim 1 further comprising a first drive mechanism and a second drive mechanism;

The first driving mechanism is connected with the slag dragging mechanism and is used for driving the slag dragging mechanism to move to a first position and a second position in the horizontal direction, wherein the first position is a position corresponding to a molten iron container on the molten iron ladle car in a stop position in the vertical direction, and the second position is a position corresponding to a preset molten iron container in the vertical direction; the second driving mechanism is connected with the slag dragging mechanism and used for driving the slag dragging mechanism to move up and down along the vertical direction.

3. The automatic slag scooping apparatus of claim 2 further comprising a second detection device and a controller; the second detection device is used for detecting the liquid level height of molten iron in a molten iron container on the molten iron tank car; the controller obtains the detection result of the second detection device, and controls the second driving mechanism to drive the slag dragging mechanism to lift at the stop position according to the detection result.

4. The automatic slag scooping apparatus of claim 1, comprising a third detection device, the third detection device being an image acquisition device for acquiring an image of a molten iron level in a molten iron container on the ladle car to determine a content of slag in the molten iron container from the acquired image.

5. The automatic slag scooping apparatus of claim 1, including a fourth detection device for detecting an amount of slag stored in the slag container.

6. The automatic slag scooping apparatus of claim 5, wherein the fourth detection device collects a first parameter and a second parameter to determine an amount of slag stored in the slag container based on the first parameter and the second parameter;

the first parameter is the distance between the high point position of the iron slag in the iron slag container and the top of the iron slag container in the vertical direction, and the second parameter is the distance between the high point position of the iron slag and the edge of the iron slag container in the horizontal direction.

7. The automatic slag scooping apparatus of claim 1, including a fifth detection device, the fifth detection device being an image acquisition device for acquiring an image of the slag scooping mechanism to determine a degree of loss of the slag scooping mechanism from the acquired image.

8. The automatic slag scooping apparatus of claim 1 wherein the slag container is disposed on the ladle car or the slag container is disposed outside the transfer rail.

9. The molten iron transferring and transporting system is characterized by comprising a transferring rail, a molten iron tank car and automatic slag dragging equipment;

the transfer rail is connected between the ironmaking position and the steelmaking position;

the ladle car is arranged on the transfer rail and can move between the ironmaking position and the steelmaking position along the transfer rail; the ladle car is provided with a molten iron container;

the automatic slag scooping device is used for scooping molten iron in a molten iron container on the molten iron tank car, and the automatic slag scooping device adopts the automatic slag scooping device according to any one of claims 1-8.

10. An automatic slag scooping method is characterized by comprising the following steps:

a step of entering a station: controlling a ladle car moving along the transfer track to a steelmaking position to enter a slag dragging station;

a liquid level detection step: detecting the liquid level height in the molten iron container;

slag fishing: controlling the slag scooping mechanism to descend to a set height, scooping slag from the iron slag in the molten iron container on the molten iron tank car, and removing the scooped iron slag from the molten iron container;

iron slag detection: detecting the iron slag content in the molten iron container, if the iron slag content in the molten iron container is higher than a set value, repeatedly executing the slag dragging step, and if the iron slag content in the molten iron container is lower than the set value, executing the subsequent station leaving step;

Leaving the station: and controlling the ladle car to continuously move to a steelmaking position along the transfer track.

11. The automatic slag scooping method according to claim 10, characterized in that in the slag detecting step, an image of a liquid surface in the molten iron container is collected, and a slag content in the molten iron container is judged based on the collected image.