Intelligent control electric baking system and method for steel ladles and iron ladles

Abstract

The invention relates to the technical field of steel smelting equipment, and discloses an intelligent control electric baking system and method for steel ladles and iron ladles. The intelligent control electric baking system comprises a computer remote control system, a steel ladle or iron ladle body, a baking ladle cover, an electric heating rod, a temperature monitoring device and an intelligent control system. The computer remote control system is used for setting a baking system curve, transmitting an instruction to the intelligent control system and receiving data transmitted by the intelligent control system; the electric heating rod is used for baking a steel ladle or an iron ladle; the temperature monitoring device is used for monitoring the temperature of a steel ladle or iron ladle lining refractory material; the intelligent control system is used for collecting the temperature data sent by the temperature monitoring device and controlling the working power of the electric heating rod according to the change between a preset baking system curve and the actually measured temperature. The intelligent control system and the temperature monitoring device are adopted, the heating condition can be adjusted in time according to the monitoring condition and the preset condition, the baking temperature is uniform, and the baking efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of iron and steel smelting equipment, and particularly relates to an intelligent control electric baking system and method for ladles and torpedo ladles. Background Art

[0002] Ladles and torpedo ladles are important thermal containers in the steelmaking process. Their inner linings are made of refractory materials, and there is inevitably a certain amount of moisture in the refractory materials. Before being put into use, they must be fully baked. The main purposes are to dry the moisture and reach the temperature requirements for being put into use, to prevent boiling or explosion accidents, steel water inclusions, and the reduction of the service life of refractory materials when receiving high-temperature molten steel or molten iron. Traditional baking methods mainly include: fuel oil spraying baking, gas spraying baking, hot waste gas baking, etc. Among them, gas spraying baking using blast furnace gas or coke oven gas is the most common. However, these traditional baking methods have the following obvious disadvantages: 1) Incomplete combustion, a large amount of CO, CO2, and other toxic and harmful gases are emitted into the atmosphere, seriously polluting the environment; 2) Generation or leakage of toxic and harmful gases, especially CO, will cause personal injury; 3) Uneven baking temperature, affecting the service life of refractory materials; 4) Low heat utilization efficiency; 5) A large number of pipelines are required for transporting gas, and the investment and operating costs are high. With the strict control of high-temperature industrial carbon emissions by the state, traditional baking methods have restricted the development of the iron and steel industry towards the green direction to a certain extent.

[0003] With the progress of technology, although some inventions have tried to solve the above problems, they also have obvious deficiencies. Chinese Patent Application CN102310191A (application number 201110265610.0) discloses an electric baking device for ladles, Chinese Patent CN202591595U (application number 201220084926.X) discloses an electric baking device for ladles used in casting, and Chinese Patent Application CN102581265A (application number 201210059727.8) discloses an electric baking device for ladles used in casting. These three describe the same kind of electric baking device for ladles, but they all have obvious deficiencies, mainly manifested in: 1) Only the device is described and the baking method is not disclosed; 2) The device does not have intelligence, restricting its popularization and use; 3) The applicable scope is only the casting industry. Summary of the Invention

[0004] The purpose of the present invention is to overcome the problems existing in the prior art that the existing baking devices do not have intelligence and do not disclose the baking method, etc., and provide an intelligent control electric baking system and method for ladles and torpedo ladles. This intelligent control electric baking system uses computer remote operation, realizes intelligence, remote control, and unmanned operation, avoids personnel safety accidents, and the operation process is simple and efficient.

[0005] To achieve the above object, on the one hand, the present invention provides an intelligent control electric baking system for ladles and tundishes. The intelligent control electric baking system includes a computer remote control system, a ladle or tundish body, a baking cover located above the ladle or tundish body, and electric heating rods, a temperature monitoring device, an intelligent control system, and an electrical system fixed on the baking cover;

[0006] The computer remote control system is connected to the intelligent control system, and is used for setting a baking regime curve, transmitting instructions to the intelligent control system, receiving data transmitted by the intelligent control system, and reflecting the data in a set model;

[0007] The electrical system is used to provide electric energy for the electric heating rods, so that the electric heating rods bake the refractory lining material inside the ladle or tundish body;

[0008] The temperature monitoring device is used to monitor the temperature of the refractory lining material inside the ladle or tundish in real time;

[0009] The intelligent control system is used to collect the real-time temperature data sent by the temperature monitoring device and control the working power of the electric heating rods according to the change between the preset baking regime curve and the measured temperature.

[0010] Preferably, the computer remote control system transmitting instructions to the intelligent control system includes: the computer remote control system transmits instructions for turning on and off the intelligent control system, the temperature monitoring device, and the electrical system to the intelligent control system, and the intelligent control system controls the turning on and off of the temperature monitoring device and the electrical system;

[0011] And / or, the computer remote control system receiving data transmitted by the intelligent control system includes the temperature data of the refractory lining material inside the ladle or tundish body and the power data of the electric heating rods.

[0012] Preferably, an air extraction device is further fixed on the baking cover, and the air extraction device is used to extract the water vapor generated during the baking of the refractory lining material inside the ladle or tundish body.

[0013] Preferably, the computer remote control system first transmits instructions to the intelligent control system to turn on and off the air extraction device, and then the intelligent control system controls the turning on and off of the air extraction device. The rotation speed of the air extraction device is controlled by the intelligent control system, and the intelligent control system transmits the rotation speed data to the computer remote control system.

[0014] Preferably, the electric heating rods are arranged below the baking cover, and multiple groups of electric heating rods are arranged below the baking cover. Each group of electric heating rods is distributed annularly and equidistantly along the axis of the baking cover.

[0015] Preferably, 2 groups of electric heating rods are arranged below the baking cover, and each group includes 4 electric heating rods.

[0016] Preferably, the intelligent control electric baking system further includes a lifting device, which is used to move the baking cover to directly above the ladle or tundish body or to move the baking cover away from directly above the ladle or tundish body.

[0017] Preferably, the electric heating rod is a U-shaped infrared electric heating rod, and its length is 2 / 3 to 4 / 5 of the depth of the ladle or tundish body.

[0018] Preferably, the temperature monitoring device is installed directly above the baking cover and has a temperature surface imaging function. The temperature data monitored by the temperature monitoring device is transmitted to the intelligent control system at a rate of 1 - 2 times per minute.

[0019] Preferably, the baking cover is made of steel material, and lightweight refractory material with heat preservation function is covered outside the steel material at the lower part of the baking cover, and its heat-resistant temperature ≥ 1600 °C.

[0020] The present invention provides an intelligent control electric baking method for ladles and tundishes. This intelligent control electric baking method is implemented in the intelligent control electric baking system for ladles and tundishes described above. This intelligent control electric baking method includes the following steps:

[0021] Transport the ladle or tundish body to be baked to the baking position;

[0022] The computer remote control system remotely turns on the intelligent control system, the temperature monitoring device and the electrical system;

[0023] Move the baking cover to above the ladle or tundish body;

[0024] Select a preset baking regime curve in the computer remote control system and transmit the data to the intelligent control system;

[0025] The intelligent control system controls the temperature monitoring device and the electrical system to start working, and the electric heating rods bake the lining refractory material in the ladle or tundish body;

[0026] The temperature monitoring device transmits the monitored temperature data to the intelligent control system. The intelligent control system compares the measured data with the temperature data corresponding to the preset baking regime curve, and controls the working power of the electric heating rods according to the change between the preset baking regime curve and the measured temperature;

[0027] After the baking is completed, the computer remote control system transmits instructions to shut down the intelligent control system, temperature monitoring device, electrical system, and air extraction device to the intelligent control system. The intelligent control system controls the temperature monitoring device, electrical system, and air extraction device to shut down; removes the baking cover from above the ladle or tundish body, and removes the ladle or tundish body from the baking position.

[0028] Preferably, the process of controlling the working power of the electrical system according to the change between the preset baking regime curve and the measured temperature includes: if the measured temperature data is lower than the corresponding temperature data on the preset baking regime curve, increase the power of the electric heating rods; otherwise, decrease the power of the electric heating rods.

[0029] Compared with the prior art, the present invention has at least the following beneficial effects:

[0030] (1) The energy used by the present invention for baking the ladle or tundish is electric energy, which completely avoids the emission of a large amount of CO, CO2, and other toxic and harmful gases generated by using fuel baking, gas baking, or hot waste gas baking into the atmosphere, completely solves the environmental pollution and personal injury caused by baking, and helps the iron and steel industry to develop sustainably in a green direction;

[0031] (2) The present invention uses electric baking, which can dry the moisture in the refractory material in a short time, and has extremely high baking and drying efficiency. Therefore, it can not only significantly reduce energy consumption, but also improve the turnover efficiency of the ladle or tundish;

[0032] (3) The system of the present invention uses an intelligent control system and a temperature monitoring device, which can adjust the heating situation in a timely manner according to the monitoring situation and preset situation, has uniform baking temperature and high baking efficiency, helps to improve the service life of the refractory material, reduce energy consumption, and improve the turnover efficiency of the ladle or tundish;

[0033] (4) The equipment of the present invention is simple, does not require pipelines for transporting gas, and can significantly reduce investment and operating costs;

[0034] (5) The equipment of the present invention adopts computer remote operation, realizes intelligentization, remoteness, and unmanned operation, avoids personnel safety accidents, and has a simple and efficient operation process. At the same time, it provides technical guidance for the development of high-temperature industrial equipment in the direction of intelligentization. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic diagram of the intelligent control electric baking system for ladles and tundishes according to the present invention.

[0036] Figure 2 is a schematic diagram of the layout of the electric heating rods according to the present invention.

[0037] DESCRIPTION OF THE REFERENCE NUMERALS

[0038] 1. Ladle or tundish body; 2. Electric heating rod; 3. Baking cover; 4. Temperature monitoring device; 5. Intelligent control system; 6. Electrical system; 7. Air extraction device; 8. Lifting device. Detailed implementation mode

[0039] The following will describe in detail the specific implementation mode of the present invention in conjunction with the accompanying drawings. It should be understood that the specific implementation mode described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0040] In the ranges disclosed herein, the endpoints and any values are not limited to the exact ranges or values, and these ranges or values should be understood to include values close to these ranges or values. For numerical ranges, the endpoint values of each range, between the endpoint values of each range and a single point value, and between single point values can be combined with each other to obtain one or more new numerical ranges, and these numerical ranges should be regarded as specifically disclosed herein.

[0041] As described above, the intelligent control electric baking system for ladles and tundishes provided by the present invention, as Figure 1 shown, includes a computer remote control system (not shown in the figure), a ladle or tundish body 1, a baking cover 3 located above the ladle or tundish body 1, and an electric heating rod 2, a temperature monitoring device 4, an intelligent control system 5, and an electrical system 6 fixed on the baking cover 3.

[0042] In the present invention, the computer remote control system is connected to the intelligent control system 5. Preferably, the computer remote control system and the intelligent control system 5 are wirelessly connected, and the connection method can be operated in a conventional manner. Specifically, the computer remote control system is used to set the baking regime curve, transmit instructions to the intelligent control system 5, receive the data transmitted by the intelligent control system 5, and reflect the data in the set model.

[0043] It should be explained that the computer remote control system transmitting instructions to the intelligent control system includes: the computer remote control system transmits instructions to turn on and off the intelligent control system 5, the temperature monitoring device 4, and the electrical system 6 to the intelligent control system 5. The intelligent control system 5 is turned on, and at the same time, the intelligent control system 5 controls the temperature monitoring device 4 and the electrical system 6 to turn on and off.

[0044] It should be clear that in the present invention, the baking regime curve is a curve between the baking time and the baking temperature. The computer remote control system transmits the preset baking regime curve to the intelligent control system 5. The intelligent control system 5 compares the baking regime curve with the measured temperature data, thereby controlling the working power of the electric heating rod 2 according to the change between the preset baking regime curve and the measured temperature, so as to ensure that the baking continues according to the preset baking regime, and further improve the baking uniformity and baking efficiency.

[0045] Further, the data received by the computer remote control system from the intelligent control system 5 includes temperature data of the refractory lining of the ladle or tundish body 1 and heating power data of the electric heating rods 2, etc.

[0046] In the present invention, the computer remote control system has 3D rendering of the temperature field of the ladle or tundish, and can intuitively display the heat distribution area. Further, the computer remote control system supports functions such as mobile terminal extended APP control, monitoring, and report generation.

[0047] In an embodiment, the electrical system 6 is fixedly arranged above the baking cover 3, and the electrical system 6 is used to supply electrical energy to the electric heating rods 2, so that the electric heating rods 2 bake the refractory lining of the ladle or tundish body 1.

[0048] In an embodiment, the temperature monitoring device 4 is fixedly arranged directly above the baking cover 3, and its function is to monitor the temperature of the refractory lining of the ladle or tundish in real time. In a preferred embodiment, the temperature monitoring device 4 has a temperature surface imaging function, and the temperature data monitored by the temperature monitoring device 4 is transmitted to the intelligent control system 5 at a rate of 1 - 2 times / minute, so as to improve the accuracy of the measured temperature data, and further improve the preparation of the intelligent baking program.

[0049] In the present invention, the intelligent control system 5 is mainly used to collect the real-time temperature data sent by the temperature monitoring device 4, and control the working power of the electric heating rods 2 according to the change between the preset baking system curve and the measured temperature, so as to ensure that the baking continues according to the preset baking system, and further improve the baking uniformity and baking efficiency. Specifically, the process of controlling the working power of the electric heating rods 2 according to the change between the preset baking system curve and the measured temperature includes: if the measured temperature data is lower than the corresponding temperature data on the preset baking system curve, the power of the electric heating rods 2 is increased; if the measured temperature data is higher than the corresponding temperature data on the preset baking system curve, the power of the electric heating rods 2 is decreased.

[0050] In a preferred embodiment, as Figure 2 shown, the electric heating rods 2 are arranged below the baking cover 3, and multiple groups of electric heating rods 2 are arranged below the baking cover 3. Each group of electric heating rods 2 is evenly distributed in a ring along the axis of the baking cover 3, and the distances of various electric heating rods 2 from the center of the cover are different, so as to achieve uniform heating.

[0051] In a more specific embodiment, 2 groups of electric heating rods 2 are arranged below the baking cover 3, and each group includes 4 electric heating rods 2. As Figure 2As shown in the figure, there are a total of 8 electric heating rods 2 below the baking cover 3, which are respectively distributed on two rings at distances L1 and L2 from the center of the cover. There are 4 electric heating rods evenly distributed on each ring, and the distribution angle between the two closest electric heating rods 2 on different rings is 45°. L1 and L2 can be determined according to the actual size of the ladle.

[0052] Furthermore, the electric heating rod 2 is a U-shaped infrared electric heating rod, and its length can be 2 / 3 to 4 / 5 of the depth of the ladle or tundish body 1, such as 2 / 3, 3 / 4 or 4 / 5. In the present invention, the electric heating rod 2 can be a silicon carbide rod doped with ZrO2 and coated with MoSi2, and its maximum heat-resistant temperature ≥ 1850 °C.

[0053] In one embodiment, an air extraction device 7 is further fixed on the baking cover 3. The air extraction device 7 is used to extract the water vapor generated during the baking of the refractory lining of the ladle or tundish body 1. That is, the main function of the air extraction device 7 is to extract the water vapor in the ladle or tundish, reduce the air pressure, and accelerate the discharge of water vapor in the refractory material. Among them, the opening and closing of the air extraction device 7 are controlled by the computer remote control system first transmitting an instruction to the intelligent control system 5, and then the intelligent control system 5 controls the opening and closing of the air extraction device 7. The air extraction working speed of the air extraction device 7 is controlled by the intelligent control system 5 according to the temperature in the ladle or tundish body 1, and the intelligent control system 5 transmits the speed data to the computer remote control system. In the present invention, the impeller of the air extraction device 7 is made of reaction-sintered silicon carbide ceramic material, and its maximum heat-resistant temperature ≥ 1600 °C, and the speed range is 200 - 1000 rpm, equipped with a variable-frequency motor.

[0054] During specific operation, in the case where the air extraction device 7 is set, if the measured temperature data in the ladle or tundish body 1 is lower than the corresponding temperature data on the preset baking regime curve, the power of the electric heating rod 2 is increased, and at the same time, the speed of the air extraction device 7 is increased; if the measured temperature data in the ladle or tundish body 1 is higher than the corresponding temperature data on the preset baking regime curve, the power of the electric heating rod 2 is decreased, and at the same time, the speed of the air extraction device 7 is decreased.

[0055] In the present invention, the intelligent control electric baking system further includes a lifting device 8, which is used to move the baking cover 3 to directly above the ladle or torpedo ladle body 1 or move the baking cover 3 away from directly above the ladle or torpedo ladle body 1. When baking operation is required, the baking cover 3 fixed with electric heating rods 2, temperature monitoring devices 4, intelligent control systems 5, electrical systems 6 and air extraction devices 7 is moved to directly above the ladle or torpedo ladle body 1 through the lifting device 8; when the baking operation is over, the baking cover 3 is moved away from directly above the ladle or torpedo ladle body 1. In the present invention, the lifting device 8 can be fixed on the baking cover 3 or not, as long as it can move the baking cover 3. Among them, the lifting support is made of steel material, and the outside of the steel material is covered with refractory asbestos fiber felt to prevent the central steel material from being deformed by heat.

[0056] In the present invention, the baking cover 3 is made of steel material, and a lightweight refractory material with heat preservation function is covered outside the steel material at the lower part of the baking cover 3, and its heat resistance temperature ≥ 1600 °C. By covering a material with heat preservation function at the lower part of the baking cover 3, the heat loss in the ladle or torpedo ladle body 1 can be reduced, and the measured temperature is more accurate.

[0057] Furthermore, a fault alarm program is set inside the computer remote control system. When one of the devices, systems or components in the intelligent control electric baking system has abnormal operation, the intelligent control system 5 will timely feedback and alarm to the computer remote control system.

[0058] In a specific embodiment, such as Figure 1 and Figure 2As shown in the figure, the intelligent control electric baking system for ladles and hot metal ladles includes a computer remote control system, a ladle or hot metal ladle body 1, a baking cover 3 located above the ladle or hot metal ladle body 1, and electric heating rods 2, a temperature monitoring device 4, an intelligent control system 5, an electrical system 6, an air extraction device 7 and a lifting device 8 fixed on the baking cover 3; the computer remote control system is wirelessly connected to the intelligent control system 5, and the computer remote control system is used to set the baking regime curve, transmit instructions to the intelligent control system 5, receive the data transmitted by the intelligent control system 5 and reflect the data in the set model. Among them, the computer remote control system starts the baking program, including remotely starting the intelligent control system 5, the temperature monitoring device 4, the electrical system 6 and the air extraction device 7. The computer remote control system ends the baking program, including the computer remote control system transmitting instructions to start and stop the intelligent control system 5, the temperature monitoring device 4, the electrical system 6 and the air extraction device 7 to the intelligent control system 5. The intelligent control system 5 controls the start and stop of the temperature monitoring device 4, the electrical system 6 and the air extraction device 7. The baking regime curve is the curve between the baking time and the baking temperature. The computer remote control system transmits the preset baking regime curve to the intelligent control system 5. The data received by the computer remote control system from the intelligent control system 5 includes the temperature data of the lining refractory of the ladle or hot metal ladle body 1, the heating power data of the electric heating rods 2 and the air extraction working speed of the air extraction device 7. The computer remote control system has a 3D rendering of the temperature field of the ladle or hot metal ladle, which can visually display the heat distribution area. A fault alarm program is set inside the computer remote control system. When one of the devices, systems or components in the intelligent control electric baking system has abnormal operation, the intelligent control system 5 will promptly feedback to the computer remote control system and give an alarm; the electrical system 6 is fixedly arranged above the baking cover 3 and is used to provide electric energy for the electric heating rods 2, so that the electric heating rods 2 bake the lining refractory of the ladle or hot metal ladle body 1; the temperature monitoring device 4 is fixed directly above the baking cover 3, and its function is to monitor the temperature of the lining refractory of the ladle or hot metal ladle in real time. The temperature monitoring device 4 has a temperature surface imaging function. The temperature data monitored by the temperature monitoring device 4 is transmitted to the intelligent control system 5 at a rate of 1-2 times per minute; the intelligent control system 5 is mainly used to collect the real-time temperature data sent by the temperature monitoring device 4 and control the working power of the electric heating rods 2 and the rotation speed of the air extraction device 7 according to the change between the preset baking regime curve and the measured temperature;Below the baking cover 3, there are 2 groups of electric heating rods 2, and each group includes 4 electric heating rods 2. The 8 electric heating rods 2 are respectively distributed on two rings at distances L1 and L2 from the center of the cover. On each ring, 4 electric heating rods are evenly distributed, and the distribution angle between the two closest electric heating rods 2 on different rings is 45°. The electric heating rod 2 is a U-shaped infrared electric heating rod, and its length can be 3 / 4 of the depth of the ladle or tundish body 1; the air extraction device 7 is used to extract the water vapor generated during the baking of the refractory lining of the ladle or tundish body 1. The air extraction working speed of the air extraction device 7 is controlled by the intelligent control system 5 according to the temperature inside the ladle or tundish body 1, and the intelligent control system 5 transmits the speed data to the computer remote control system; the intelligent control electric baking system further includes a lifting device 8, and the lifting device 8 is used to move the baking cover 3 to directly above the ladle or tundish body 1 or move the baking cover 3 away from directly above the ladle or tundish body 1; the baking cover 3 is made of steel material, and a lightweight refractory material with heat preservation function is covered outside the steel material at the lower part of the baking cover 3, and its heat-resistant temperature ≥ 1600°C.;

[0059] The present invention also provides an intelligent control electric baking method for ladles and tundishes. This intelligent control electric baking method is implemented in the intelligent control electric baking system for ladles and tundishes described above. This intelligent control electric baking method includes the following steps:

[0060] Transport the ladle or tundish body 1 to be baked to the baking position;

[0061] The computer remote control system transmits instructions to turn on the intelligent control system 5, the temperature monitoring device 4, and the electrical system 6 to the intelligent control system 5. The intelligent control system 5 is turned on, and at the same time, the intelligent control system 5 controls the temperature monitoring device 4 and the electrical system 6 to be turned on;

[0062] Move the baking cover 3 above the ladle or tundish body 1;

[0063] Select a preset baking regime curve in the computer remote control system and transmit the data to the intelligent control system 5;

[0064] The intelligent control system 5 controls the temperature monitoring device 4 and the electrical system 6 to start working, and the electric heating rod 2 bakes the refractory lining of the ladle or tundish body 1;

[0065] The temperature monitoring device 4 transmits the monitored temperature data to the intelligent control system 5. The intelligent control system 5 compares the measured data with the temperature data corresponding to the preset baking regime curve, and controls the working power of the electric heating rod 2 according to the change between the preset baking regime curve and the measured temperature;

[0066] After baking is completed, the computer remote control system transmits instructions to shut down the intelligent control system 5, the temperature monitoring device 4, and the electrical system 6 to the intelligent control system 5. The intelligent control system 5 shuts down, and at the same time, the intelligent control system 5 controls the temperature monitoring device 4 and the electrical system 6 to shut down. The baking cover 3 is removed from above the ladle or tundish body 1, and the ladle or tundish body 1 is removed from the baking position.

[0067] In one embodiment, the process of controlling the working power of the electrical system 6 according to the change between the preset baking regime curve and the measured temperature includes: if the measured temperature data is lower than the corresponding temperature data on the preset baking regime curve, the power of the electric heating rod 2 is increased; otherwise, the power of the electric heating rod 2 is decreased.

[0068] In a more specific embodiment, an intelligent control electric baking method for ladles and tundishes includes:

[0069] Transport the ladle or tundish body 1 to be baked to the baking position.

[0070] The computer remote control system transmits instructions to turn on the intelligent control system 5, the temperature monitoring device 4, the electrical system 6, and the air extraction device 7 to the intelligent control system 5. The intelligent control system 5 is turned on, and at the same time, the intelligent control system 5 controls the temperature monitoring device 4, the electrical system 6, and the air extraction device 7 to be turned on.

[0071] The computer remote control system controls the lifting device 8 to move the baking cover 3 above the ladle or tundish body 1.

[0072] The computer remote control system selects a pre-set baking regime curve and transmits the data to the intelligent control system 5, where the baking regime curve is set according to the different repair states of the ladle or tundish.

[0073] The intelligent control system 5 controls the temperature monitoring device 4, the electrical system 6, and the air extraction device 7 to start working, and the electric heating rod 2 bakes the refractory lining of the ladle or tundish body 1.

[0074] The temperature monitoring device 4 transmits the monitored temperature data to the intelligent control system 5. The intelligent control system 5 compares the measured data with the corresponding temperature data on the preset baking regime curve, and controls the working power of the electric heating rod 2 and the rotation speed of the air extraction device 7 according to the change between the preset baking regime curve and the measured temperature. If the measured temperature data inside the ladle or tundish body 1 is lower than the corresponding temperature data on the preset baking regime curve, the power of the electric heating rod 2 is increased, and at the same time, the rotation speed of the air extraction device 7 is increased; if the measured temperature data inside the ladle or tundish body 1 is higher than the corresponding temperature data on the preset baking regime curve, the power of the electric heating rod 2 is decreased, and at the same time, the rotation speed of the air extraction device 7 is decreased.

[0075] After baking is completed, the computer remote control system transmits instructions to shut down the intelligent control system 5, the temperature monitoring device 4, the electrical system 6, and the air extraction device 7 to the intelligent control system 5. The intelligent control system 5 shuts down, and at the same time, the intelligent control system 5 controls the temperature monitoring device 4, the electrical system 6, and the air extraction device 7 to shut down. The intelligent control system 5 reminds the computer remote control system to move the baking cover 3 away from above the ladle or torpedo ladle body 1 and move the ladle or torpedo ladle body 1 away from the baking position.

[0076] The intelligent control electric baking system and method for ladles and torpedo ladles according to the present invention, through the computer remote control system, the intelligent control system, and the temperature monitoring device, can timely adjust the heating situation according to the monitoring situation and the preset situation, with uniform baking temperature and high baking efficiency, which helps to improve the service life of refractory materials, reduce energy consumption, and improve the turnover efficiency of ladles or torpedo ladles. In addition, the present invention adopts computer remote operation, realizing intelligence, remoteness, and unmanned operation, avoiding personnel safety accidents, and the operation process is simple and efficient. At the same time, it provides technical guidance for the development of high-temperature industrial equipment towards the intelligent direction.

[0077] It should be understood that the parts not detailed in this specification belong to the prior art.

[0078] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, including any other suitable combination of each technical feature. These simple modifications and combinations should also be regarded as the content disclosed by the present invention and fall within the protection scope of the present invention.

Claims

1. An intelligent control electric baking system for ladles and torpedo ladles, characterized in that, The intelligent control electric baking system includes a computer remote control system, a ladle or tundish body (1), a baking cover (3) located above the ladle or tundish body (1), and electric heating rods (2), a temperature monitoring device (4), an intelligent control system (5) and an electrical system (6) fixed on the baking cover (3); The computer remote control system is connected to the intelligent control system (5), and is used for setting the baking regime curve, transmitting instructions to the intelligent control system (5), receiving the data transmitted by the intelligent control system (5) and reflecting the data in the set model; The electrical system (6) is used for providing electric energy for the electric heating rods (2) to bake the refractory lining of the ladle or tundish body (1); The temperature monitoring device (4) is used for monitoring the temperature of the refractory lining of the ladle or tundish in real time; The intelligent control system (5) is used for collecting the real-time temperature data sent by the temperature monitoring device (4) and controlling the working power of the electric heating rods (2) according to the change between the preset baking regime curve and the measured temperature.

2. The intelligent control electric baking system according to claim 1, wherein The computer remote control system transmits instructions to the intelligent control system, including: the computer remote control system transmits instructions to turn on and off the intelligent control system (5), the temperature monitoring device (4) and the electrical system (6) to the intelligent control system (5), and the intelligent control system (5) controls the temperature monitoring device (4) and the electrical system (6) to turn on and off; And / or, the computer remote control system receives the data transmitted by the intelligent control system (5), including the temperature data of the refractory lining of the ladle or tundish body (1) and the power data of the electric heating rods (2).

3. The intelligent control electric baking system according to claim 1 or 2, characterized in that, An air extraction device (7) is also fixed on the baking cover (3), and the air extraction device (7) is used for extracting the water vapor generated during the baking of the refractory lining of the ladle or tundish body (1); Or, the opening and closing of the air extraction device (7) are controlled by the computer remote control system first transmitting instructions to the intelligent control system (5), and then the intelligent control system (5) controls the opening and closing of the air extraction device (7). The rotation speed of the air extraction device (7) is controlled by the intelligent control system (5), and the intelligent control system (5) transmits the rotation speed data to the computer remote control system.

4. The intelligent control electric baking system according to claim 1, characterized in that, The electric heating rods (2) are arranged below the baking cover (3), and multiple groups of electric heating rods (2) are arranged below the baking cover (3). Each group of electric heating rods (2) is evenly distributed in a ring along the axis of the baking cover (3); Or, 2 groups of electric heating rods (2) are arranged below the baking cover (3), and each group includes 4 electric heating rods (2).

5. The intelligent control electric baking system according to claim 1 or 4, characterized in that, The electric heating rods (2) are U-shaped infrared electric heating rods, and their length is 2 / 3 to 4 / 5 of the depth of the ladle or tundish body (1).

6. The intelligent control electric baking system according to claim 1 or 5, characterized in that, The intelligent control electric baking system further includes a lifting device (8), and the lifting device (8) is used for moving the baking cover (3) to directly above the ladle or tundish body (1) or moving the baking cover (3) away from directly above the ladle or tundish body (1).

7. The intelligent control electric baking system according to claim 1 or 6, characterized in that, The temperature monitoring device (4) is installed directly above the baking cover (3) and has a temperature surface imaging function. The temperature data monitored by the temperature monitoring device (4) is transmitted to the intelligent control system (5) at a rate of 1 - 2 times per minute.

8. The intelligent control electric baking system according to claim 1, wherein The baking cover (3) is made of steel material, and lightweight refractory material with heat insulation function is covered outside the steel material at the lower part of the baking cover (3), and its heat resistance temperature ≥ 1600 °C.

9. An intelligent control electric baking method for ladles and torpedo ladles, which is implemented in the intelligent control electric baking system for ladles and torpedo ladles according to any one of claims 1-8, characterized in that, This intelligent control electric baking method includes the following steps: Transport the ladle or tundish body (1) to be baked to the baking position. The computer remote control system remotely turns on the intelligent control system (5), temperature monitoring device (4) and electrical system (6). Move the baking cover (3) above the ladle or tundish body (1). Select a pre-set baking regime curve on the computer remote control system and transmit the data to the intelligent control system (5). The intelligent control system (5) controls the temperature monitoring device (4) and the electrical system (6) to start working, and the electric heating rods (2) bake the lining refractory material of the ladle or tundish body (1). The temperature monitoring device (4) transmits the monitored temperature data to the intelligent control system (5). The intelligent control system (5) compares the measured data with the temperature data corresponding to the pre-set baking regime curve, and controls the working power of the electric heating rods (2) according to the change between the pre-set baking regime curve and the measured temperature. After baking is completed, the computer remote control system transmits instructions to turn on the intelligent control system (5), temperature monitoring device (4), electrical system (6) and air extraction device (7) to the intelligent control system (5). The intelligent control system (5) controls the temperature monitoring device (4), electrical system (6) and air extraction device (7) to turn on; move the baking cover (3) away from above the ladle or tundish body (1), and move the ladle or tundish body (1) away from the baking position.

10. The intelligent control electric baking system according to claim 1, characterized in that, The process of controlling the working power of the electrical system (6) according to the change between the pre-set baking regime curve and the measured temperature includes: if the measured temperature data is lower than the temperature data corresponding to the pre-set baking regime curve, increase the power of the electric heating rods (2); otherwise, decrease the power of the electric heating rods (2).

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