Method and device for detecting charge level height of blast furnace charge

Abstract

The invention provides a charge level height detection method and device for blast furnace charge, and relates to the technical field of blast furnace production. The method comprises the following steps: acquiring the initial movement speed of the blast furnace stock rod in the movement process of the blast furnace stock rod; the movement process comprises the processes of ruler lifting, ruler releasing and movement along with the charge level of the blast furnace charge; and if the initial movement speed is different from a preset speed, executing at least one adjustment operation so as to adjust the output torque of a motor of the blast furnace stock rod until the target movement speed, obtained by executing the adjustment operation, of the blast furnace stock rod is the same as the preset speed, the blast furnace stock rod is lifted and released at the preset speed and moves along with the charge level of the blast furnace burden, and height detection data of the charge level are obtained. According to the method and the device for detecting the charge level height of the blast furnace charge, the reliability of detecting the charge level height of the blast furnace charge can be improved.

Description

Technical Field

[0001] This application relates to the technical field of blast furnace production, and particularly to a method and device for detecting the surface height of blast furnace burden. Background Art

[0002] When the existing blast furnace sounding rod detects the surface height of blast furnace burden, its movement can be divided into three stages (states): lifting the rod, lowering the rod, and following the surface of the blast furnace burden. All of them adopt the torque control method, which is equivalent to determining a fixed torque value of the motor. As for how the load moves and what the rotation speed is, it will no longer be controlled.

[0003] In this way, when the blast furnace sounding rod is lowered, due to the gradually increasing combined torque of the weight and the steel wire rope and the constant electromagnetic torque of the motor, the blast furnace sounding rod accelerates downward. The impact generated when reaching the surface causes the state of the weight to form a planted hammer, an inverted pendulum, or a tilted hammer, thus resulting in an incorrect detection of the surface, preventing the normal operation of the next process of the blast furnace, and ultimately affecting the blast furnace condition. Therefore, the reliability of the current method for detecting the surface height of blast furnace burden is relatively low. Summary of the Invention

[0004] This application provides a method and device for detecting the surface height of blast furnace burden, aiming to solve the defect of relatively low reliability of the existing method for detecting the surface height of blast furnace burden and improve the reliability of detecting the surface height of blast furnace burden.

[0005] In a first aspect, this application provides a method for detecting the surface height of blast furnace burden, including:

[0006] During the movement of the blast furnace sounding rod, obtain the initial movement speed of the blast furnace sounding rod; the movement process includes the processes of lifting the rod, lowering the rod, and following the movement of the surface of the blast furnace burden;

[0007] If the initial movement speed is different from the preset speed, perform at least one adjustment operation to adjust the output torque of the motor of the blast furnace sounding rod until the target movement speed of the blast furnace sounding rod obtained by performing the adjustment operation is the same as the preset speed, so that the blast furnace sounding rod lifts the rod, lowers the rod, and follows the movement of the surface of the blast furnace burden at the preset speed, and obtain the height detection data of the surface.

[0008] Optionally, the adjustment operation includes:

[0009] Determine the first movement speed of the blast furnace sounding rod corresponding to the current adjustment operation, and obtain the current current of the motor of the blast furnace sounding rod; wherein, the first movement speed corresponding to the first adjustment operation is the initial movement speed;

[0010] Based on the first movement speed, the preset speed, and the current current, determine the target adjustment parameter;

[0011] Adjust the output torque of the motor based on the target adjustment parameter;

[0012] Obtain the target moving speed of the blast furnace sounding rod after the adjustment of the output torque. If the target moving speed is different from the preset speed, use the target moving speed as the first moving speed corresponding to the next adjustment operation.

[0013] Optionally, the determining the target adjustment parameter based on the first moving speed, the preset speed and the current current includes:

[0014] Determine the speed deviation value between the first moving speed and the preset speed;

[0015] Input the speed deviation value into a speed regulator to obtain a first adjustment parameter;

[0016] Input the first adjustment parameter and the current current into a current regulator to obtain the target adjustment parameter.

[0017] Optionally, when the blast furnace sounding rod is lifting, the speed regulator is a PI regulator; when the blast furnace sounding rod is lowering and following the surface of the blast furnace burden, the speed regulator is a P regulator.

[0018] Optionally, the current regulator is a PI regulator.

[0019] Optionally, the adjusting the output torque of the motor based on the target adjustment parameter includes:

[0020] Based on the target adjustment parameter, adjust the conduction angle of the main circuit thyristor of the speed regulating device of the motor to adjust the output torque.

[0021] In a second aspect, the present application further provides a device for detecting the height of the surface of the blast furnace burden, including:

[0022] An acquisition module, configured to acquire the initial moving speed of the blast furnace sounding rod during the movement of the blast furnace sounding rod; the movement process includes the processes of lifting, lowering and following the surface of the blast furnace burden;

[0023] A detection module, configured to, if the initial moving speed is different from the preset speed, perform at least one adjustment operation to adjust the output torque of the motor of the blast furnace sounding rod until the target moving speed of the blast furnace sounding rod obtained by performing the adjustment operation is the same as the preset speed, so that the blast furnace sounding rod lifts, lowers and follows the surface of the blast furnace burden at the preset speed, and obtain the height detection data of the surface.

[0024] In a third aspect, the present application further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the method described in the first aspect is implemented.

[0025] In a fourth aspect, the present application further provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method described in the first aspect is implemented.

[0026] In a fifth aspect, the present application further provides a computer program product, including a computer program. When the computer program is executed by a processor, the method described in the first aspect is implemented.

[0027] The method and device for detecting the material surface height of blast furnace burden provided by the present application can adjust the output torque of the motor of the blast furnace sounding rod, so as to adjust the target movement speed of the blast furnace sounding rod to a preset speed. The blast furnace sounding rod performs hoisting and lowering at the preset speed and follows the material surface of the blast furnace burden, which can ensure the stability of the speed during the process of hoisting, lowering and following the material surface of the blast furnace burden. It avoids the large mechanical impact caused by the high-speed stop when the blast furnace sounding rod reaches the top during the hoisting process, and also avoids problems such as reverse hammer and planted hammer that are prone to occur during the lowering process of the blast furnace sounding rod, ensuring that the blast furnace sounding rod can stably track the material surface. It can not only effectively avoid the error of material surface height detection, improve the reliability of material surface height detection, improve production efficiency, but also reduce equipment loss and maintenance cost, improve the stability and reliability of blast furnace production, and provide important support for iron and steel production. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 is a schematic flow chart of the method for detecting the material surface height of blast furnace burden provided by the embodiments of the present application;

[0030] Figure 2 is a schematic diagram of speed adjustment for hoisting the blast furnace sounding rod provided by the embodiments of the present application;

[0031] Figure 3 is a schematic diagram of speed adjustment for lowering the blast furnace sounding rod and following the movement of the material surface of the blast furnace burden provided by the embodiments of the present application;

[0032] Figure 4 is a schematic structural diagram of the device for detecting the material surface height of blast furnace burden provided by the embodiments of the present application;

[0033] Figure 5 It is a schematic structural diagram of an electronic device provided by an embodiment of the present application. Specific embodiments

[0034] The present application considers that when detecting the material surface height of blast furnace burden by a fixed torque, the following problems exist:

[0035] (1) When lifting the lifting rod, as more and more iron chains are wound on the drum, the chain generating the downward pulling force becomes shorter and shorter, the load dragged by the motor becomes lighter and lighter, while the upward torque remains unchanged, and the speed becomes faster and faster. When reaching the top during lifting, the speed also reaches a relatively high speed, and there is a large mechanical impact when the brake closes during parking.

[0036] (2) When lowering the lifting rod, as fewer and fewer iron chains are wound on the drum, the chain generating the downward pulling force becomes longer and longer, the load dragged by the motor becomes heavier and heavier, and the upward torque remains unchanged, so the speed will also become faster and faster. In this way, when lowering the lifting rod, if the material surface is relatively shallow, the acceleration is relatively small and it can barely ensure that the hammer does not fall and track the material surface. If the material surface is relatively deep, the speed becomes faster and faster, and the hammer will fall when reaching the material surface, resulting in the situation that the material surface cannot be tracked normally.

[0037] Therefore, the present application proposes a new method for detecting the material surface height of blast furnace burden.

[0038] To make the purpose, technical solution and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the accompanying drawings in the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

[0039] Figure 1 It is a schematic flow chart of the method for detecting the material surface height of blast furnace burden provided by an embodiment of the present application. Referring to Figure 1 , an embodiment of the present application provides a method for detecting the material surface height of blast furnace burden, and its execution subject can be an electronic device. For example, it can be a controller. The following will take the execution subject of this method being a controller as an example for description. This method may include:

[0040] Step 110, during the movement of the blast furnace sounding rod, obtain the initial movement speed of the blast furnace sounding rod; the movement process includes the processes of lifting the rod, lowering the rod, and following the movement of the material surface of the blast furnace burden;

[0041] Step 120: If the initial moving speed is different from the preset speed, perform at least one adjustment operation to adjust the output torque of the motor of the blast furnace sounding rod until the target moving speed of the blast furnace sounding rod obtained by performing the adjustment operation is the same as the preset speed, so that the blast furnace sounding rod raises and lowers the rod at the preset speed and follows the material surface movement of the blast furnace burden to obtain the height detection data of the material surface.

[0042] In step 110, during the process of raising and lowering the rod and following the material surface movement of the blast furnace burden, the controller can obtain the initial moving speed of the blast furnace sounding rod at any time to determine whether the blast furnace sounding rod is moving at the preset speed. The preset speed is the preset moving speed of the blast furnace sounding rod during the process of raising and lowering the rod and following the material surface movement of the blast furnace burden.

[0043] In step 120, if the controller determines that the initial moving speed is different from the preset speed, it means that the initial moving speed of the blast furnace sounding rod deviates from the preset speed. At this time, the target moving speed of the blast furnace sounding rod can be adjusted to be the same as the preset speed by performing at least one adjustment of the output torque of the motor. The blast furnace sounding rod raises and lowers the rod at the preset speed and follows the material surface movement of the blast furnace burden, and reliable height detection data of the material surface can be obtained.

[0044] The method for detecting the height of the blast furnace burden material surface provided by the embodiment of the present application can adjust the target moving speed of the blast furnace sounding rod to the preset speed by adjusting the output torque of the motor of the blast furnace sounding rod. The blast furnace sounding rod raises and lowers the rod at the preset speed and follows the material surface of the blast furnace burden, which can ensure the stability of the speed during the process of raising and lowering the rod and following the material surface movement of the blast furnace burden, avoid the large mechanical impact caused by the high-speed stop when the blast furnace sounding rod reaches the top during the raising process, and also avoid problems such as the sounding rod falling backward and falling during the lowering process, ensure that the blast furnace sounding rod can stably track the material surface, not only can effectively avoid the detection error of the material surface height, improve the reliability of the material surface height detection, improve the production efficiency, but also can reduce the equipment loss and maintenance cost, improve the stability and reliability of the blast furnace production, and provide important support for iron and steel production.

[0045] In one embodiment, the adjustment operation includes: determining the first moving speed of the blast furnace sounding rod corresponding to the current adjustment operation, and obtaining the current current of the motor of the blast furnace sounding rod; wherein, the first moving speed corresponding to the first adjustment operation is the initial moving speed; determining the target adjustment parameter based on the first moving speed, the preset speed and the current current; adjusting the output torque of the motor based on the target adjustment parameter; obtaining the target moving speed of the blast furnace sounding rod after the output torque is adjusted, and if the target moving speed is different from the preset speed, using the target moving speed as the first moving speed corresponding to the next adjustment operation.

[0046] Further, in one embodiment, determining a target adjustment parameter based on a first movement speed, a preset speed, and a current current includes: determining a speed deviation value between the first movement speed and the preset speed; inputting the speed deviation value into a speed regulator to obtain a first adjustment parameter; and inputting the first adjustment parameter and the current current into a current regulator to obtain the target adjustment parameter.

[0047] The controller can determine the first movement speed corresponding to the current adjustment operation and obtain the current current of the motor of the blast furnace sounding rod. Among them, the first movement speed corresponding to the first adjustment operation is the initial movement speed. By inputting the speed deviation value between the initial movement speed and the preset speed into the speed regulator, the controller can obtain a first adjustment parameter related to speed. The controller inputs the first adjustment parameter and the current current into the current regulator to obtain a target adjustment parameter related to voltage. The controller can obtain the target movement speed after the output torque is adjusted. If the target movement speed is the same as the preset speed, the adjustment operation ends. If the target movement speed is different from the preset speed, the target movement speed is used as the first movement speed corresponding to the next adjustment operation, and the above adjustment operation is repeated until the target movement speed of the blast furnace sounding rod is the same as the preset speed.

[0048] The method for detecting the material surface height of the blast furnace burden provided by the embodiments of the present application can adjust the target movement speed of the blast furnace sounding rod to the preset speed by adjusting the output torque of the motor of the blast furnace sounding rod. The blast furnace sounding rod lifts and lowers the rod at the preset speed and follows the material surface of the blast furnace burden, which can ensure the stability of the speed of the blast furnace sounding rod during the process of lifting, lowering the rod and following the material surface of the blast furnace burden, avoiding the large mechanical impact caused by high-speed parking when the blast furnace sounding rod reaches the top during the lifting process, and also avoiding problems such as the sounding rod falling backward and diving during the lowering process of the blast furnace sounding rod, ensuring that the blast furnace sounding rod can stably track the material surface, not only effectively avoiding errors in detecting the material surface height, improving the reliability of detecting the material surface height, improving production efficiency, but also reducing equipment wear and maintenance costs, improving the stability and reliability of blast furnace production, and providing important support for iron and steel production.

[0049] In one embodiment, when the blast furnace sounding rod is lifting, the speed regulator is a PI regulator; when the blast furnace sounding rod is lowering and following the material surface of the blast furnace burden, the speed regulator is a P regulator.

[0050] Further, in one embodiment, the current regulator is a PI regulator.

[0051] Figure 2 is a schematic diagram of the speed adjustment of the blast furnace sounding rod during lifting provided by the embodiments of the present application. As Figure 2 shown, when the blast furnace sounding rod is lifting, the speed regulator is a PI (Proportional-Integral) regulator. Figure 3It is a schematic diagram of the speed regulation for the blast furnace sounding rod to release the rod and follow the movement of the burden surface of the blast furnace charge provided by the embodiment of the present application. As Figure 3 shown, when the blast furnace sounding rod releases the rod and follows the movement of the burden surface of the blast furnace charge, the speed regulator is a P (Proportional) regulator.

[0052] Specifically, when the blast furnace sounding rod lifts the rod, the burden hammer is lifted from the burden surface to the top position, which requires being fast and stable. When lifting the rod, both the speed regulator and the current regulator are PI control, that is, a standard speed control mode, and the blast furnace sounding rod is lifted at a constant speed.

[0053] When the blast furnace sounding rod releases the rod, the burden hammer is lowered from the top position until it touches the burden surface, which requires being stable without the hammer falling. When the blast furnace sounding rod follows the movement of the burden surface of the blast furnace charge, the burden hammer descends following the burden surface, accurately reflecting the downward situation of the burden surface in real time, which requires accurate following. Therefore, in the stage of releasing the rod and following the burden surface, the speed regulator turns off the integral controller and is a pure P control, which is a control system with static error. The speed deviation value is multiplied by the proportional coefficient to be the output of the speed regulator. The current regulator is still PI control, and the output of the speed regulator and the current at present are used as inputs for static error-free control. In this process, both the running direction and the preset speed are positive, but the preset speed is very small. After the static error processing by the speed regulator, a very small value is used as the input of the current regulator. After being processed by the current regulator, it is output to the motor, and the motor drags the burden hammer with a relatively small upward torque. Under the action of the gravity of the burden hammer, the burden hammer moves downward to realize the action of releasing the rod. During the process of releasing the rod, as the chain gets longer and longer, the downward load torque gets larger and larger, causing the speed of releasing the rod to increase. At this time, the output of the speed regulator will increase, that is, the input of the current regulator increases, and its output will increase, causing the upward torque output by the motor to increase, so that the speed reaches a new balance and will not become faster and faster.

[0054] That is to say, the process of lifting the scale is a standard speed control, so both the speed regulator and the current regulator are PI controls; during the process of lowering the scale and following the material surface, the torque output by the motor needs to be upward while the running direction of the material hammer is downward. If the speed regulator is still PI controlled, under the action of integration, even a very small input value will move in the given direction and the effect of opposite directions of torque and speed cannot be achieved. Therefore, the integral action of the speed regulator is turned off, so that under a relatively small given preset speed, the speed regulator outputs a very small value as the input of the current regulator (the current feedback is 0 at the beginning moment, and this value is the deviation value). Finally, the current regulator outputs a very small value, that is, the motor outputs a very small torque. This torque is not enough to overcome the gravity of the material hammer, and the material hammer runs downward under the upward pulling force. The control method is still speed control, and the speed feedback still works. When the downward speed increases, the feedback also increases. Since the given value and the feedback are in opposite directions, the subtraction operation is actually an addition, and the output torque will increase to suppress the increase in speed, achieving the purpose of stabilizing the speed.

[0055] The method for detecting the material surface height of the blast furnace burden provided by the embodiment of the present application can keep the speed stable in different movement stages of the blast furnace sounding rod by setting both the speed regulator and the current regulator in the process of lifting the scale to PI control, setting the speed regulator in the process of lowering the scale and following the material surface to P control, and setting the current regulator to PI control, ensuring that the blast furnace sounding rod can stably track the material surface, effectively avoiding errors in detecting the material surface height, and improving the reliability of detecting the material surface height.

[0056] In one embodiment, based on the target adjustment parameter, adjusting the output torque of the motor includes: based on the target adjustment parameter, adjusting the conduction angle of the main circuit thyristor of the speed control device of the motor to adjust the output torque.

[0057] The method for detecting the material surface height of the blast furnace burden provided by the embodiment of the present application adjusts the conduction angle of the main circuit thyristor of the speed control device of the motor through the target adjustment parameter to adjust the output torque of the motor, thereby controlling the speed of the blast furnace sounding rod, ensuring that the blast furnace sounding rod can stably track the material surface, effectively avoiding errors in detecting the material surface height, and improving the reliability of detecting the material surface height.

[0058] Based on the descriptions of the above embodiments, the controller can specifically select a DC speed control device. At this time, the speed of the blast furnace sounding rod is determined by detecting the back electromotive force of the motor. When the DC speed control device executes the method for detecting the material surface height of the blast furnace burden, the specific adjustment methods of each parameter are as follows in the table:

[0059]

[0060]

[0061] Table 1 Adjustment Table of Relevant Parameters of DC Speed Regulation Device

[0062] The device for detecting the material surface height of blast furnace burden provided by the present application will be described below. The device for detecting the material surface height of blast furnace burden described below can be correspondingly referred to the method for detecting the material surface height of blast furnace burden described above.

[0063] Figure 4 It is a schematic structural diagram of the device for detecting the material surface height of blast furnace burden provided by an embodiment of the present application. Referring to Figure 4 , the device for detecting the material surface height of blast furnace burden provided by an embodiment of the present application may include:

[0064] An acquisition module 410, configured to acquire an initial movement speed of the blast furnace sounding rod during the movement of the blast furnace sounding rod; the movement process includes the processes of lifting the rod, lowering the rod, and following the movement of the material surface of the blast furnace burden;

[0065] A detection module 420, configured to perform at least one adjustment operation if the initial movement speed is different from a preset speed, so as to adjust the output torque of the motor of the blast furnace sounding rod until the target movement speed of the blast furnace sounding rod obtained by performing the adjustment operation is the same as the preset speed, so that the blast furnace sounding rod lifts the rod, lowers the rod, and follows the movement of the material surface of the blast furnace burden at the preset speed, and obtain height detection data of the material surface.

[0066] The device for detecting the material surface height of blast furnace burden provided by an embodiment of the present application can adjust the target movement speed of the blast furnace sounding rod to the preset speed by adjusting the output torque of the motor of the blast furnace sounding rod. The blast furnace sounding rod lifts the rod, lowers the rod, and follows the movement of the material surface of the blast furnace burden at the preset speed, which can ensure the stability of the speed of the blast furnace sounding rod during the processes of lifting the rod, lowering the rod, and following the movement of the material surface of the blast furnace burden, avoid the large mechanical impact caused by the high-speed stop of the blast furnace sounding rod when reaching the top during the lifting process, and also avoid problems such as the sounding rod falling backward and hammering down easily during the lowering process of the blast furnace sounding rod, ensure that the blast furnace sounding rod can stably track the material surface, not only can effectively avoid the detection error of the material surface height, improve the reliability of the material surface height detection, improve the production efficiency, but also can reduce the equipment loss and maintenance cost, improve the stability and reliability of blast furnace production, and provide important support for iron and steel production.

[0067] Specifically, the device for detecting the material surface height of blast furnace burden provided by an embodiment of the present application can implement all the method steps implemented by the method embodiment with the controller as the execution subject, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiment will not be specifically described in this embodiment.

[0068] Figure 5It is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As Figure 5 shown, the electronic device may include: a processor 510, a communication interface 520, a memory 530, and a communication bus 540. Among them, the processor 510, the communication interface 520, and the memory 530 complete communication with each other through the communication bus 540. The processor 510 may call logical instructions in the memory 530 to execute the method for detecting the surface height of the blast furnace burden, for example, including:

[0069] During the movement of the blast furnace sounding rod, obtain the initial movement speed of the blast furnace sounding rod; the movement process includes the processes of lifting the rod, lowering the rod, and following the movement of the surface of the blast furnace burden;

[0070] If the initial movement speed is different from the preset speed, perform at least one adjustment operation to adjust the output torque of the motor of the blast furnace sounding rod until the target movement speed of the blast furnace sounding rod obtained by performing the adjustment operation is the same as the preset speed, so that the blast furnace sounding rod lifts the rod, lowers the rod, and follows the movement of the surface of the blast furnace burden at the preset speed, and obtain the height detection data of the surface.

[0071] In addition, when the logical instructions in the above-mentioned memory 530 are implemented in the form of software functional units and sold or used as independent products, they may be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of this technical solution, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0072] On the other hand, the present application also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it is used to execute the steps of the method for detecting the surface height of the blast furnace burden provided by the above-mentioned various methods, for example, including:

[0073] During the movement of the blast furnace sounding rod, obtain the initial movement speed of the blast furnace sounding rod; the movement process includes the processes of lifting the rod, lowering the rod, and following the movement of the surface of the blast furnace burden;

[0074] If the initial moving speed is different from the preset speed, at least one adjustment operation is performed to adjust the output torque of the motor of the blast furnace sounding rod until the target moving speed of the blast furnace sounding rod obtained by performing the adjustment operation is the same as the preset speed, so that the blast furnace sounding rod raises and lowers the rod at the preset speed and follows the surface of the blast furnace burden to move, and the height detection data of the surface is obtained.

[0075] On the other hand, the present application also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the steps of the method for detecting the height of the surface of the blast furnace burden provided by the above-mentioned various methods, for example, including:

[0076] During the movement of the blast furnace sounding rod, obtain the initial moving speed of the blast furnace sounding rod; the movement process includes the process of raising the rod, lowering the rod and following the surface of the blast furnace burden to move;

[0077] If the initial moving speed is different from the preset speed, at least one adjustment operation is performed to adjust the output torque of the motor of the blast furnace sounding rod until the target moving speed of the blast furnace sounding rod obtained by performing the adjustment operation is the same as the preset speed, so that the blast furnace sounding rod raises and lowers the rod at the preset speed and follows the surface of the blast furnace burden to move, and the height detection data of the surface is obtained.

[0078] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative labor.

[0079] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, also by hardware. Based on this understanding, the above technical solutions in essence or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0080] It should be further noted that in the embodiments of the present application, terms such as "first" and "second" are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more.

[0081] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0082] "Determining B based on A" in the embodiments of the present application means that the factor A should be considered when determining B. It is not limited to "determining B only based on A", but should also include: "determining B based on A and C", "determining B based on A, C, and E", "determining C based on A and further determining B based on C", etc. In addition, it can also include using A as a condition for determining B. For example, "when A meets the first condition, use the first method to determine B"; for another example, "when A meets the second condition, determine B"; for another example, "when A meets the third condition, determine B based on the first parameter", etc. Of course, it can also be a condition for using A as a factor for determining B. For example, "when A meets the first condition, use the first method to determine C and further determine B based on C", etc.

[0083] In the embodiments of the present application, the term "plurality" means two or more, and other quantifiers are similar.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for detecting the surface height of the burden in a blast furnace, characterized in that, Including: During the movement of the blast furnace sounding rod, obtain the initial movement speed of the blast furnace sounding rod; the movement process includes the processes of lifting the rod, lowering the rod, and following the movement of the surface of the blast furnace burden. If the initial movement speed is different from the preset speed, perform at least one adjustment operation to adjust the output torque of the motor of the blast furnace sounding rod until the target movement speed of the blast furnace sounding rod obtained by performing the adjustment operation is the same as the preset speed, so that the blast furnace sounding rod lifts the rod, lowers the rod, and follows the movement of the surface of the blast furnace burden at the preset speed, and obtain the height detection data of the surface.

2. The method for detecting the burden surface height of the blast furnace burden according to claim 1, wherein The adjustment operation includes: Determine the first movement speed of the blast furnace sounding rod corresponding to the current adjustment operation, and obtain the current current of the motor of the blast furnace sounding rod; wherein, the first movement speed corresponding to the first adjustment operation is the initial movement speed. Based on the first movement speed, the preset speed, and the current current, determine the target adjustment parameter. Based on the target adjustment parameter, adjust the output torque of the motor. Obtain the target movement speed of the blast furnace sounding rod after the adjustment of the output torque. If the target movement speed is different from the preset speed, use the target movement speed as the first movement speed corresponding to the next adjustment operation.

3. The method for detecting the burden surface height of the blast furnace burden according to claim 2, wherein The determining the target adjustment parameter based on the first movement speed, the preset speed, and the current current includes: Determine the speed deviation value between the first movement speed and the preset speed. Input the speed deviation value into a speed regulator to obtain a first adjustment parameter. Input the first adjustment parameter and the current current into a current regulator to obtain the target adjustment parameter.

4. The method for detecting the burden surface height of the blast furnace burden according to claim 3, characterized in that, When the blast furnace sounding rod lifts the rod, the speed regulator is a PI regulator; when the blast furnace sounding rod lowers the rod and follows the movement of the surface of the blast furnace burden, the speed regulator is a P regulator.

5. The method for detecting the burden surface height of the blast furnace burden according to claim 3, characterized in that, The current regulator is a PI regulator.

6. The method for detecting the burden surface height of the blast furnace burden according to claim 2, wherein, The adjusting the output torque of the motor based on the target adjustment parameter includes: Based on the target adjustment parameter, adjust the conduction angle of the main circuit thyristor of the speed control device of the motor to adjust the output torque.

7. A device for detecting the surface height of a blast furnace burden, characterized in that, Including: An acquisition module, configured to obtain the initial movement speed of the blast furnace sounding rod during the movement of the blast furnace sounding rod. The movement process includes the processes of lifting the rod, lowering the rod, and following the movement of the surface of the blast furnace burden. A detection module, configured to, if the initial movement speed is different from the preset speed, perform at least one adjustment operation to adjust the output torque of the motor of the blast furnace sounding rod until the target movement speed of the blast furnace sounding rod obtained by performing the adjustment operation is the same as the preset speed, so that the blast furnace sounding rod lifts the rod, lowers the rod, and follows the movement of the surface of the blast furnace burden at the preset speed, and obtain the height detection data of the surface.

8. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method for detecting the height of the surface of the blast furnace burden according to any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium storing a computer program thereon, characterized in that, When the computer program is executed by a processor, it implements the method for detecting the height of the surface of the blast furnace burden according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the method for detecting the burden surface height of the blast furnace burden according to any one of claims 1 to 6.

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