Auxiliary device for feeding of solid-liquid continuous casting composite furnace

Abstract

The invention provides an auxiliary device for feeding of a solid-liquid continuous casting composite furnace. The auxiliary device comprises the composite furnace, the furnace cover is arranged on the composite furnace in a matched manner; the fixed cover is arranged on the furnace cover; the sealing ring is arranged in the fixing cover, the center line of the sealing ring coincides with the center line of the feeding channel, the outer side surface and the inner side surface of the sealing ring are each of a sawtooth structure, the inner diameter of the sealing ring is smaller than the outer diameter of raw materials, and the sealing ring is made of elastic materials. The sealing ring is installed in the feeding channel and fixed through the fixing cover, and raw materials pass through the feeding channel and then pass through the sealing ring to enter the composite furnace. When raw materials pass through the sealing ring, due to the fact that the outer side surface and the inner side surface of the sealing ring are each of a sawtooth structure, and the inner diameter of the sealing ring is smaller than the outer diameter of the raw materials, the sealing performance of the sealing ring is enhanced through the design, and the situation that nitrogen leaks and a feeding port is blocked when the raw materials pass through the sealing ring is effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of compound furnaces, and particularly to an auxiliary device for feeding a solid-liquid continuous casting compound furnace. Background Art

[0002] The design concept of the solid-liquid continuous casting compound furnace is to achieve the efficient combination of copper stranded wire core material and copper alloy liquid. During the production process, the copper stranded wire core material is precisely inserted into the mold. At the same time, by introducing nitrogen into the rear cavity, the copper alloy liquid is extruded, thereby pushing the outer layer of copper alloy liquid to flow forward into the front cavity and smoothly enter the mold interior. This process ensures that the copper alloy liquid can be evenly distributed around the core material. With the cooling effect of the crystallizer, the outer layer of copper alloy solution gradually solidifies, and finally forms a uniform and seamless outer skin, which tightly wraps around the outside of the core material. Under the continuous action of the tractor, this composite wire can be continuously pulled out to meet the production requirements.

[0003] However, there is a significant problem with the feeding system of the original equipment. Since zinc powder will precipitate from copper alloy in a high-temperature environment, these zinc powders will gradually accumulate and finally block the feed hole, resulting in the obstruction of the feeding process. To solve this problem, the operator has to adopt a more cumbersome and risky method, that is, manually add the material from the front chamber to the rear chamber through the channel between the front and rear chambers. This method not only increases the difficulty of feeding, but also due to the presence of high-temperature materials, the operator also faces a certain risk of scalding during this process. Summary of the Invention

[0004] The present invention aims to at least solve the technical problem of feed hole blockage in the prior art, and particularly innovatively proposes an auxiliary device for feeding a solid-liquid continuous casting compound furnace.

[0005] To achieve the above object of the present invention, the present invention provides an auxiliary device for feeding a solid-liquid continuous casting compound furnace, and the device includes:

[0006] A compound furnace;

[0007] A furnace cover, which is cooperatively arranged on the compound furnace, and a feeding channel is arranged in the furnace cover, and raw materials enter the compound furnace through the feeding channel;

[0008] A fixed cover, which is arranged on the furnace cover;

[0009] A sealing ring, which is arranged in the fixed cover, the center line of the sealing ring coincides with the center line of the feeding channel, the outer surface and the inner surface of the sealing ring are both serrated structures, and the inner diameter of the sealing ring is smaller than the outer diameter of the raw material, and the sealing ring is made of an elastic material.

[0010] As an implementable example of the present invention, optionally, a cooling device is provided outside the sealing ring.

[0011] As an implementable example of the present invention, optionally, the cooling device includes:

[0012] At least two temperature collectors, both arranged inside the fixed cover and both close to different parts of the sealing ring, for collecting temperature data of different parts of the sealing ring;

[0013] A cooling pool for containing a coolant;

[0014] A driver, pipe-connected to the cooling pool through a pipe;

[0015] At least two cooling pipes, both arranged outside the sealing ring, corresponding to the temperature collectors, located at different positions of the sealing ring, and both pipe-connected to the driver;

[0016] A control valve, arranged on the cooling pipe;

[0017] A controller, connected to the driver, the control valve and the temperature collectors, for controlling the flow rate of the coolant in the cooling pipe according to the temperature data collected by the temperature collectors.

[0018] As an implementable example of the present invention, optionally, the controller controls the flow rate of the coolant in the cooling pipe according to the temperature data collected by the temperature collectors, including:

[0019] When the temperature data collected by any one of the temperature collectors is greater than a preset first temperature threshold, the controller sends an enhanced output power signal to the driver;

[0020] When the temperature data collected by any one of the temperature collectors is greater than a preset second temperature threshold, the controller sends an enhanced output power signal to the driver and closes or adjusts the opening degree of the control valve with a temperature lower than a preset first low temperature threshold;

[0021] When the temperature data collected by all the temperature collectors are less than or equal to a preset second low temperature threshold, the controller sends a reduced output power signal or a stop working signal to the driver;

[0022] When the temperature data collected by all the temperature collectors are between the first temperature threshold and the second low temperature threshold, the output power of the driver remains unchanged.

[0023] As an implementable example of the present invention, optionally, the first temperature threshold is less than the second temperature threshold, and the first low temperature threshold is greater than the second low temperature threshold.

[0024] As an implementable example of the present invention, optionally, the device further includes a detection module for detecting whether the sealing ring is damaged.

[0025] As an implementable example of the present invention, optionally, the detection module includes:

[0026] A flow rate detection unit for detecting whether nitrogen in the composite furnace leaks from the sealing ring and judging whether the sealing ring is damaged according to the leakage nitrogen flow rate;

[0027] A visual detection unit is arranged in the feeding channel for real-time collecting image data of the sealing ring and judging whether the sealing ring is damaged according to the image data by using an image recognition algorithm;

[0028] An alarm unit is connected to the flow rate detection unit and the visual detection unit for sending an alarm signal when it is detected that the sealing ring is damaged.

[0029] As an implementable example of the present invention, optionally, the visual detection unit includes:

[0030] An image data acquisition sub-unit is arranged in the feeding channel for real-time collecting image data of the sealing ring;

[0031] An image processing sub-unit is connected to the image data acquisition sub-unit for preprocessing the image data;

[0032] An identification and judgment sub-unit is connected to the image processing sub-unit for identifying and judging the preprocessed image data by using an image recognition algorithm to determine whether the sealing ring 6 is damaged.

[0033] As an implementable example of the present invention, optionally, the expression of the image recognition algorithm is:

[0034] F shape =[Perimeter(E),Area(E),Circularity(E)]

[0035] F texture =[Contrast(E),Correlation(E),Energy(E),Homogeneity(E)]

[0036] F=[F texture ,F shape

[0037] y = sign(W T F + b)

[0038] Wherein, F shape ​It represents the shape features of image E. Perimeter(E) represents the perimeter of the contour in image E. Area(E) represents the area of the region enclosed by the contour in image E. Circularity(E) represents the circularity in image E. [,] represents vector concatenation, and F texture It represents the texture features of image E. Contrast(E) represents the contrast of image E. Correlation(E) represents the correlation of image E. Energy(E) represents the coarseness of the texture of the gray-scale distribution of image E. Homogeneity(E) represents the similarity of local gray-scale values in image E. F represents the feature vector, y represents the classification result, and its value is +1 or -1, representing damaged and undamaged sealing rings respectively. sign(·) represents the sign function, and W T represents the transpose of the weight vector, and b represents the bias.

[0039] As an implementable example of the present invention, optionally, the flow rate detection unit and the vision detection unit are also connected to the feeding controller of the solid-liquid continuous casting composite furnace. When the flow rate detection unit and the vision detection unit detect that the sealing ring is damaged, the feeding controller of the solid-liquid continuous casting composite furnace immediately stops the feeding operation.

[0040] The beneficial effects of the present invention are as follows: First, the present invention installs a sealing ring in the feeding channel and fixes it with a fixing cover. The raw materials pass through the feeding channel and then enter the composite furnace through the sealing ring. When the raw materials pass through the sealing ring, since both the outer surface and the inner surface of the sealing ring are serrated structures, and the inner diameter of the sealing ring is smaller than the outer diameter of the raw materials, this design not only enhances the sealing performance of the sealing ring but also effectively prevents the occurrence of nitrogen leakage and blockage of the feeding port when the raw materials pass through. At the same time, the serrated structure increases the friction between the sealing ring and the raw materials, making the raw materials more stable when passing through. In addition, the sealing ring is cooled by the cooling device, effectively reducing the temperature of the sealing ring during operation, extending its service life, and improving the stability of the entire feeding system.

[0041] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0043] Figure 1 is the installation structure schematic diagram of the auxiliary device for feeding the solid-liquid continuous casting composite furnace of the present invention.

[0044] Figure 2 is the enlarged structure schematic diagram of part A of the present invention.

[0045] Figure 3 is a cross-sectional view of the sealing ring of the present invention.

[0046] Figure 4 is a schematic structural diagram of the cooling device of the present invention.

[0047] In the figure: 1. Composite furnace, 2. Furnace cover, 3. Raw material, 4. Fixed cover, 5. Feeding channel, 6. Sealing ring, 7. Lower pressing nut, 8. Cooling device. Specific embodiments

[0048] The following details the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0049] As Figure 1 and 2 shown, an auxiliary device for feeding a composite furnace for continuous casting of solid and liquid includes:

[0050] Composite furnace 1;

[0051] Furnace cover 2, which is cooperatively arranged on the composite furnace 1, and a feeding channel 5 is arranged in the furnace cover 2, and the raw material 3 enters the composite furnace 1 through the feeding channel 5;

[0052] In this embodiment, the raw material 3 is zinc copper with a circular cross-section. During use, the raw material 3 is fed into the feeding channel 5 by a zinc copper rod tractor and then passes through the sealing ring 6 into the composite furnace 1.

[0053] Fixed cover 4, which is arranged on the furnace cover 2; as Figure 2 shown, in this embodiment, the fixed cover 4 is used to fix the sealing ring 6. The fixed cover 4 is detachably connected to the furnace cover 2 by screws. This design facilitates the replacement or repair of the sealing ring 6. During the installation of the sealing ring 6, it is necessary to ensure that its center line coincides exactly with the center line of the feeding channel 5 to ensure that the raw material 3 can pass smoothly and the sealing effect of the sealing ring 6 reaches the best. When the raw material 3 passes through the sealing ring 6, since its inner diameter is smaller than the outer diameter of the raw material 3, and due to the serrated structure design on the inner and outer surfaces of the sealing ring 6, sufficient friction will be generated between the raw material 3 and the sealing ring 6, effectively preventing the raw material 3 from shaking or shifting during the feeding process, thereby avoiding the risk of nitrogen leakage and feed inlet blockage.

[0054] The sealing ring 6 is arranged inside the fixed cover 4, and the center line of the sealing ring 6 coincides with the center line of the feeding channel 5. The outer surface and the inner surface of the sealing ring 6 are both serrated structures, and the inner diameter of the sealing ring 6 is smaller than the outer diameter of the raw material 3. The sealing ring 6 is made of an elastic material.

[0055] As Figure 2 shown, in this embodiment, the sealing ring 6 is made of a silicone rubber material with good heat resistance, corrosion resistance and elasticity. The selection of this material not only ensures the stability of the sealing ring 6 in a high-temperature environment, but also ensures its good sealing performance and long service life. In addition, the silicone rubber material also has good anti-aging performance, can resist material aging under long-term high-temperature work, and further extends the service life of the sealing ring 6. Specifically, during the use of the sealing ring 6, the serrated structure design on its inner and outer surfaces plays a crucial role. This design not only increases the contact area between the sealing ring 6 and the raw material 3, thereby improving the sealing effect, but also the serrated structure can effectively "bite" the raw material 3 to prevent it from sliding or shifting during the feeding process. This stable fixing effect is of great significance for ensuring the smooth progress of the feeding process and preventing nitrogen leakage.

[0056] The wear condition of the sealing ring 6 needs to be regularly checked during use. Once it is found that the wear is serious or there are cracks, a new sealing ring should be replaced immediately to ensure the normal operation and sealing performance of the feeding system. In order to further improve the sealing effect and service life of the sealing ring 6, a wear-resistant and high-temperature-resistant coating can also be coated on the outer surface and the inner surface of the sealing ring 6 to increase its hardness and wear resistance.

[0057] As Figures 1 to 3 shown, in summary, the auxiliary device for feeding the solid-liquid continuous casting composite furnace in this embodiment installs a sealing ring in the feeding channel and fixes it through a fixed cover. The raw material enters the composite furnace through the feeding channel and then through the sealing ring. When the raw material passes through the sealing ring, since the outer surface and the inner surface of the sealing ring are both serrated structures, and the inner diameter of the sealing ring is smaller than the outer diameter of the raw material, this design not only enhances the sealing performance of the sealing ring, but also effectively prevents the occurrence of nitrogen leakage and feed port blockage when the raw material passes through. At the same time, the serrated structure increases the friction between the sealing ring and the raw material, making the raw material more stable when passing through. In addition, the sealing ring is cooled by a cooling device, effectively reducing the temperature of the sealing ring during operation, extending its service life, and improving the stability of the entire feeding system.

[0058] As an implementable example of the present invention, optionally, a cooling device 8 is arranged outside the sealing ring 6.

[0059] As Figure 4As shown in the figure, in this embodiment, the cooling device 8 includes three temperature collectors, a cooling pool, three cooling pipes, a control valve, and a controller. The three temperature collectors are all installed at three different positions close to the sealing ring 6, and are used to collect the temperature data of different positions of the sealing ring 6 in real time. The cooling pool is filled with a coolant, and the driver is connected to the cooling pool through a pipeline and is used to pump the coolant into the cooling pipes. The three cooling pipes respectively correspond to the three temperature collectors, are arranged at different positions outside the sealing ring 6, and are all connected to the driver through pipelines. The three cooling pipes are all attached to the outside of the sealing ring 6. The control valve is installed on the cooling pipe and is used to control the flow rate of the coolant. The controller is electrically connected to the driver, the control valve, and the temperature collectors, and is used to control the flow rate of the coolant in the cooling pipes according to the temperature data collected by the temperature collectors, so as to achieve precise cooling of different parts of the sealing ring 6.

[0060] As an implementable example of the present invention, optionally, the cooling device 8 includes:

[0061] At least two temperature collectors, all arranged in the fixed cover 4 and all close to different parts of the sealing ring 6, and are used to collect the temperature data of different parts of the sealing ring 6;

[0062] As Figure 4 shown, in this embodiment, three temperature collectors are installed. The temperature collectors are high-precision temperature sensors. The three temperature collectors are used to obtain the temperature data of different positions of the sealing ring 6 in real time to ensure comprehensive and accurate temperature monitoring of the sealing ring 6. These temperature data are crucial for the controller to make precise cooling control decisions subsequently. The high precision of the temperature collectors ensures the reliability of the collected temperature data, helps to detect the situation of local overheating of the sealing ring 6 in time, so as to take measures for cooling and prevent the sealing ring 6 from being damaged due to overheating. By reasonably arranging the positions of the temperature collectors, comprehensive monitoring of the key parts of the sealing ring 6 can be realized, ensuring the stable operation of the entire feeding system.

[0063] A cooling pool for containing a coolant;

[0064] A driver, which is connected to the cooling pool through a pipeline; the driver is a water pump.

[0065] At least two cooling pipes, all arranged outside the sealing ring 6, corresponding to the temperature collectors, located at different positions of the sealing ring 6, and all connected to the driver through pipelines;

[0066] In this embodiment, three cooling pipes are installed, and each cooling pipe is arranged around the outside of the sealing ring 6 and is close to the position of the corresponding temperature collector to ensure that the cooling effect directly acts on the area with a higher temperature. The design of the cooling pipes enables the coolant to flow evenly and efficiently through the outside of the sealing ring 6, taking away heat, thereby reducing the working temperature of the sealing ring 6.

[0067] Control valves are provided on each cooling pipe. By opening, closing or adjusting the opening degree of the control valves, the flow rate of the coolant can be precisely regulated, thereby achieving flexible control of the cooling rate. This design allows the system to dynamically adjust the cooling strategy according to the actual temperature of the sealing ring 6 to achieve the best cooling effect.

[0068] A controller is connected to the driver, the control valve and the temperature collector, and is used to control the flow rate of the coolant in the cooling pipe according to the temperature data collected by the temperature collector.

[0069] In this embodiment, the controller is an FPGA, which processes and analyzes the received temperature data according to a preset algorithm logic. When the temperature data collected by any temperature collector is higher than a preset first high temperature threshold, the controller sends a signal to increase the output power to the driver to increase the flow rate of the coolant, thereby accelerating the cooling rate of the sealing ring 6; at the same time, the controller also sends a signal to the control valve where the temperature data is greater than the first high temperature threshold to increase the opening degree of the control valve to allow more coolant to flow through the cooling pipe. Such a design can ensure that when the local temperature of the sealing ring 6 is too high, the system can respond quickly and take effective cooling measures to prevent the sealing ring 6 from being damaged due to overheating.

[0070] As an implementable example of the present invention, optionally, the controller controls the flow rate of the coolant in the cooling pipe according to the temperature data collected by the temperature collector, including:

[0071] When the temperature data collected by any temperature collector is greater than a preset first temperature threshold, the controller sends a signal to enhance the output power to the driver;

[0072] When the temperature data collected by any temperature collector is greater than a preset second temperature threshold, the controller sends a signal to enhance the output power to the driver and closes or adjusts the opening degree of the control valve with a temperature lower than a preset first low temperature threshold;

[0073] When the temperature data collected by all the temperature collectors are less than or equal to a preset second low temperature threshold, the controller sends a signal to reduce the output power or a stop working signal to the driver;

[0074] When the temperature data collected by all the temperature collectors are between the first temperature threshold and the second low temperature threshold, the output power of the driver remains unchanged.

[0075] It should be noted that in this embodiment, the first temperature threshold and the second temperature threshold are preset according to the material properties of the sealing ring 6 and the working environment. The first temperature threshold is set as the temperature point at which the sealing ring 6 starts to accelerate aging, while the second temperature threshold is set as the highest safe working temperature that the sealing ring 6 can withstand. At the same time, the preset first low temperature threshold and second low temperature threshold are set to prevent overcooling and ensure cooling efficiency during the cooling process respectively. When the temperature of the sealing ring 6 drops to near the lower limit of its optimal working temperature range, by closing or reducing the opening degree of the corresponding control valve, the flow rate of the coolant can be reduced to avoid overcooling of the sealing ring 6. On the contrary, when the temperatures displayed by all temperature collectors are within a safe and efficient range, keeping the output power of the driver unchanged can maintain a stable cooling effect and ensure that the sealing ring 6 always maintains the best state during operation.

[0076] In summary, the auxiliary device for feeding the solid-liquid continuous casting composite furnace of the present invention, through the innovative sealing ring design and intelligent cooling system, not only significantly improves the stability and sealing performance of the feeding process, but also effectively extends the service life of the sealing ring and reduces the maintenance cost. At the same time, the intelligent control system makes the operation more convenient and has a lower failure rate, providing a strong guarantee for the efficient operation of the solid-liquid continuous casting composite furnace.

[0077] As an implementable example of the present invention, optionally, the first temperature threshold is less than the second temperature threshold, and the first low temperature threshold is greater than the second low temperature threshold.

[0078] It should be noted that in this embodiment, the setting of the first temperature threshold and the second temperature threshold is comprehensively considered based on the material properties of the sealing ring 6, the working environment temperature, and the overall stability requirements of the feeding system. The first temperature threshold is set before the temperature point at which the sealing ring 6 starts to accelerate aging to ensure that cooling measures are taken before the performance of the sealing ring 6 begins to decline and prevent it from failing prematurely due to overheating. The second temperature threshold is set as the highest safe working temperature that the sealing ring 6 can withstand in a short period of time to ensure that the sealing ring 6 will not be immediately damaged due to excessive temperature in extreme cases and provide enough time for the operator to take emergency measures.

[0079] Meanwhile, the setting of the first low-temperature threshold and the second low-temperature threshold is aimed at optimizing the cooling effect and preventing overcooling. The first low-temperature threshold is set near the lower limit of the optimal working temperature range of the sealing ring 6 to ensure that the elasticity and sealing performance of the sealing ring 6 will not be affected by too low temperature during the cooling process. The second low-temperature threshold is set at a temperature point slightly lower than the first low-temperature threshold as a safety margin to prevent the coolant from taking away too much heat under special circumstances (such as restarting after an emergency shutdown). Through such setting of temperature thresholds, the cooling system of this embodiment can achieve precise control of the temperature of the sealing ring 6, ensuring that it always maintains the best state during operation, neither being damaged due to overheating nor having its performance affected by overcooling. This intelligent temperature control strategy not only improves the stability and reliability of the feeding system but also reduces the maintenance cost, providing a strong guarantee for the efficient operation of the solid-liquid continuous casting composite furnace.

[0080] As an implementable example of the present invention, optionally, the device further includes a detection module for detecting whether the sealing ring 6 is damaged.

[0081] The detection module includes a flow detection unit, a visual detection unit, and an alarm unit. The flow detection unit is used to monitor whether nitrogen in the composite furnace 1 leaks out from the sealing ring 6. When the sealing ring 6 is damaged or aged, resulting in a decline in sealing performance, nitrogen may leak out from the gap between the sealing ring 6 and the raw material 3 and enter the composite furnace 1. By monitoring the change in the nitrogen flow rate in the composite furnace 1, the flow detection unit can promptly detect potential problems with the sealing ring 6. Once an abnormal increase in the nitrogen flow rate is detected, the flow detection unit will immediately send a signal to the alarm unit, triggering the alarm mechanism to remind the operator to pay attention and take corresponding repair or replacement measures. The visual detection unit uses a high-definition camera to monitor the appearance of the sealing ring 6 in real time to observe whether there are signs of cracks, deformation, wear, etc. on its surface. Through image processing technology, the visual detection unit can automatically identify and analyze the state of the sealing ring 6, further improving the accuracy and efficiency of detection. When the visual detection unit detects damage to the sealing ring 6, it will also trigger the alarm unit to ensure that the problem can be promptly addressed. After receiving signals from the flow detection unit or the visual detection unit, the alarm unit will issue an audible and visual alarm to remind the operator to pay attention. At the same time, the alarm unit can also send the fault information to the remote monitoring system so that the management personnel can quickly understand and respond. Through such a design of the detection module, the auxiliary device for feeding the solid-liquid continuous casting composite furnace in this embodiment can achieve comprehensive monitoring and timely warning of the state of the sealing ring 6, effectively avoiding problems such as nitrogen leakage and feed port blockage caused by damage to the sealing ring 6, and ensuring the stability and safety of the feeding process.

[0082] As an implementable example of the present invention, optionally, the detection module includes:

[0083] A flow detection unit is used to detect whether nitrogen in the composite furnace 1 leaks out from the sealing ring 6, and judge whether the sealing ring 6 is damaged according to the nitrogen flow rate of the leakage.

[0084] As Figure 4 shown, the flow detection unit is used to detect whether nitrogen in the composite furnace 1 leaks out from the sealing ring 6. Specifically, in this embodiment, it is realized by installing a nitrogen flow sensor on the top of the sealing ring 6. This sensor can monitor the nitrogen flow rate at the contact part between the sealing ring 6 and the raw material 3 in real time. When the sealing performance of the sealing ring 6 decreases due to aging or damage, the nitrogen flow rate will increase significantly. The flow detection unit judges whether the nitrogen flow rate is abnormal according to a preset threshold. Once abnormal flow is detected, it is determined that the sealing ring 6 may be damaged, and then the alarm mechanism is triggered. This design can timely detect potential problems of the sealing ring 6, and avoid safety hazards and production interruptions caused by nitrogen leakage. This detection method based on the change of nitrogen flow rate has the characteristics of high sensitivity and rapid response, can timely detect potential problems of the sealing ring 6, and prevent safety accidents such as nitrogen leakage and feed port blockage. At the same time, this method also avoids the cumbersome and error of traditional manual detection, and improves the accuracy and efficiency of detection.

[0085] A visual detection unit is arranged in the feeding channel 5 and is used to collect image data of the sealing ring 6 in real time, and judge whether the sealing ring 6 is damaged according to the image data by using an image recognition algorithm.

[0086] It should be noted that the visual detection unit uses a high-resolution camera, and the camera is installed in the feeding channel 5 without affecting the raw material 3 from entering the feeding channel 5. It can clearly capture the detailed features on the surface of the sealing ring 6. The camera is fixed in the feeding channel 5 through a bracket to ensure that the shooting angle and distance are appropriate, so as to accurately obtain the image data of the sealing ring 6. After the image data is collected, the visual detection unit uses an image recognition algorithm to analyze and process the image. This algorithm can automatically identify defects such as cracks, deformations, and wear on the surface of the sealing ring 6, and judge whether the sealing ring 6 is damaged according to a preset standard. Once signs of damage are detected, the visual detection unit will immediately send a signal to the alarm unit to trigger the alarm mechanism, ensuring that the operator can take measures in time. This detection method based on image recognition has the advantages of non-contact, real-time monitoring, and high detection accuracy, can greatly improve the accuracy and efficiency of the detection of the sealing ring 6, and provide a strong guarantee for the stable operation of the feeding system.

[0087] An alarm unit is connected to the flow detection unit and the visual detection unit, and is used to send an alarm signal when it detects that the sealing ring 6 is damaged.

[0088] In this embodiment, the alarm unit is electrically connected to the flow detection unit and the vision detection unit. When the flow detection unit or the vision detection unit detects that the sealing ring 6 is damaged, the alarm unit will be immediately activated to emit a loud audible and visual alarm signal to attract the attention of the operator. The specific form of the alarm signal can be a flashing light and a continuous beeping sound to ensure clear perception even in a noisy working environment. At the same time, the alarm unit also has a function of recording fault information, which can automatically save key information such as the time and type of the fault occurrence for subsequent analysis and processing.

[0089] As an implementable example of the present invention, optionally, the vision detection unit includes:

[0090] An image data acquisition sub-unit, disposed in the feeding channel 5, for real-time acquisition of image data of the sealing ring 6;

[0091] In this embodiment, the image data acquisition sub-unit is a camera, installed at an appropriate position in the feeding channel 5 to ensure that all parts of the sealing ring 6 can be comprehensively and clearly captured.

[0092] An image processing sub-unit, connected to the image data acquisition sub-unit, for preprocessing the image data;

[0093] In this embodiment, the image processing sub-unit is used to perform preprocessing operations such as denoising, enhancement, and correction on the image data acquired by the image data acquisition sub-unit to improve the quality and recognition accuracy of the image. By performing denoising on the image, the noise and interference in the image can be eliminated to make the image clearer; the enhancement process can improve the contrast and brightness of the image to make the detailed features of the sealing ring 6 more obvious; the correction process can correct the distortion and distortion of the image to ensure the accuracy of the image. The preprocessed image data will be transmitted to the recognition and judgment sub-unit for further analysis and processing.

[0094] A recognition and judgment sub-unit, connected to the image processing sub-unit, for using an image recognition algorithm to perform recognition and judgment on the preprocessed image data to determine whether the sealing ring 6 is damaged.

[0095] It should be noted that the recognition and judgment subunit inputs the image data preprocessed by the image processing subunit into a preset image recognition algorithm. This algorithm is based on deep learning technology and has been trained and optimized with a large number of seal ring samples, enabling it to accurately identify various defects on the surface of the seal ring, such as cracks, deformations, wear, etc. The algorithm automatically determines the state of the seal ring by comparing and analyzing the preprocessed image data with the standard seal ring image database. Once a damage sign is recognized, the recognition and judgment subunit immediately sends a signal to the alarm subunit to trigger the alarm mechanism. This image recognition method based on deep learning not only improves the accuracy and efficiency of detection but also can adapt to the detection requirements of different types and specifications of seal rings, providing a more intelligent and reliable guarantee for the stable operation of the feeding system.

[0096] As an implementable example of the present invention, optionally, the expression of the image recognition algorithm is:

[0097] F shape = [Perimeter(E), Area(E), Circularity(E)]

[0098] F texture = [Contrast(E), Correlation(E), Energy(E), Homogeneity(E)]

[0099] F = [F texture , F shape

[0100] y = sign(W T F + b)

[0101] Among them, F shape represents the shape feature of image E;

[0102] Perimeter(E) represents the perimeter of the contour in image E, which can be calculated by traversing the edge pixels and accumulating the distances between adjacent pixels.

[0103] Area(E) represents the area of the region enclosed by the contour in image E, which can be estimated by calculating the number of pixels inside the contour;

[0104] Circularity(E) represents the circularity in image E, defined as the ratio of the area to the square of the perimeter, and is used to measure the degree to which the contour approaches a circle;

[0105] [,] represents vector concatenation;

[0106] F texture represents the texture feature of image E;

[0107] ​Contrast(E) represents the contrast of image E, which measures the total amount of local gray-scale changes in the image;

[0108] Correlation(E) represents the correlation of image E, which measures the linear relationship between gray levels in the image;

[0109] Energy(E) represents the coarseness of the texture of the gray-scale distribution of image E;

[0110] Homogeneity(E) represents the similarity of local gray-scale values in image E;

[0111] F represents the feature vector;

[0112] y represents the classification result, and its value is +1 or -1, representing that the seal ring 6 is damaged and undamaged respectively;

[0113] sign(·) represents the sign function, which is used to return +1 or -1 according to the positive or negative of the input value;

[0114] W T represents the transpose of the weight vector;

[0115] b represents the bias.

[0116] As an implementable example of the present invention, optionally, the flow rate detection unit and the visual detection unit are also connected to the feeding controller of the solid-liquid continuous casting composite furnace. When the flow rate detection unit and the visual detection unit detect that the seal ring 6 is damaged, the feeding controller of the solid-liquid continuous casting composite furnace immediately stops the feeding operation.

[0117] It should be noted that, in order to further improve the safety and reliability of the feeding system, this embodiment realizes the linkage control of the flow rate detection unit and the visual detection unit with the feeding controller of the solid-liquid continuous casting composite furnace. When the flow rate detection unit monitors an abnormal increase in the nitrogen flow rate in the composite furnace, or the visual detection unit identifies signs of damage such as cracks, deformation, and wear on the surface of the seal ring 6, the two detection units will immediately send signals to the feeding controller. After receiving these signals, the feeding controller will quickly judge that the seal ring 6 is damaged or there are serious potential safety hazards, and then trigger the emergency shutdown mechanism to immediately stop the feeding operation. This design can effectively prevent safety accidents such as nitrogen leakage and feed port blockage caused by the damage of the seal ring 6, ensuring the safety and stability of the feeding process. At the same time, through the linkage control, it can also avoid production interruption and material waste caused by the damage of the seal ring, improving production efficiency and economic benefits.

[0118] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An auxiliary device for charging a solid-liquid continuous casting composite furnace, characterized in that: The device comprises: Composite furnace (1); A furnace cover (2) is arranged on the composite furnace (1), and a feeding channel (5) is arranged in the furnace cover (2), and the raw material (3) enters the composite furnace (1) through the feeding channel (5); A fixed cover (4) is arranged on the furnace cover (2); A sealing ring (6) is arranged in the fixed cover (4), and the center line of the sealing ring (6) coincides with the center line of the feeding channel (5). The outer surface and the inner surface of the sealing ring (6) are both serrated structures, and the inner diameter of the sealing ring (6) is smaller than the outer diameter of the raw material (3). The sealing ring (6) is made of elastic material.

2. The auxiliary device for charging a solid-liquid continuous casting composite furnace according to claim 1, characterized in that: A cooling device (8) is provided outside the sealing ring (6).

3. The auxiliary device for charging a solid-liquid continuous casting composite furnace according to claim 2, characterized in that: The cooling device (8) comprises: At least two temperature collectors are arranged in the fixed cover (4) and are close to different parts of the sealing ring (6) for collecting temperature data of different parts of the sealing ring (6); A cooling pool for holding coolant; A driver connected to the cooling pool through a pipeline; At least two cooling pipes are arranged outside the sealing ring (6), correspond to the temperature collector, are located at different positions of the sealing ring (6), and are connected to the driver pipe; A control valve is arranged on the cooling pipe; The controller is connected to the driver, the control valve and the temperature collector, and is used to control the flow rate of the coolant in the cooling pipe according to the temperature data collected by the temperature collector.

4. The auxiliary device for charging a solid-liquid continuous casting composite furnace according to claim 3, characterized in that: The controller controls the flow rate of the coolant in the cooling pipe according to the temperature data collected by the temperature collector, including: When the temperature data collected by any temperature collector is greater than a preset first temperature threshold, the controller sends an enhanced output power signal to the driver; When the temperature data collected by any temperature collector is greater than a preset second temperature threshold, the controller sends an enhanced output power signal to the driver, and closes or adjusts the opening of the control valve whose temperature is lower than a preset first low temperature threshold; When the temperature data collected by all the temperature collectors are less than or equal to a preset second low temperature threshold, the controller sends a signal to reduce output power or a signal to stop working to the driver; When the temperature data collected by all the temperature collectors are between the first temperature threshold and the second low temperature threshold, the output power of the driver remains unchanged.

5. The auxiliary device for charging a solid-liquid continuous casting composite furnace according to claim 4, characterized in that: The first temperature threshold is lower than the second temperature threshold, and the first low temperature threshold is higher than the second low temperature threshold.

6. The auxiliary device for charging a solid-liquid continuous casting composite furnace according to claim 1, characterized in that: The device also comprises a detection module for detecting whether the sealing ring (6) is damaged.

7. The auxiliary device for charging a solid-liquid continuous casting composite furnace according to claim 6, characterized in that: The detection module comprises: a flow detection unit, used to detect whether nitrogen in the composite furnace (1) leaks out from the sealing ring (6), and to determine whether the sealing ring (6) is damaged according to the flow rate of the leaked nitrogen; a visual detection unit, arranged in the feeding channel (5), for collecting image data of the sealing ring (6) in real time, and judging whether the sealing ring (6) is damaged by using an image recognition algorithm based on the image data; An alarm unit is connected to the flow detection unit and the visual detection unit and is used to send out an alarm signal when damage to the sealing ring (6) is detected.

8. The auxiliary device for charging a solid-liquid continuous casting composite furnace according to claim 7, characterized in that: The visual inspection unit comprises: An image data acquisition subunit, arranged in the feeding channel (5), and used for acquiring image data of the sealing ring (6) in real time; An image processing subunit, connected to the image data acquisition subunit, and used for preprocessing the image data; An identification and judgment subunit is connected to the image processing subunit and is used to use an image recognition algorithm to identify and judge the pre-processed image data to determine whether the sealing ring (6) is damaged.

9. The auxiliary device for charging a solid-liquid continuous casting composite furnace according to claim 7 or 8, characterized in that: The expression of the image recognition algorithm is: F shape =[Perimeter(E),Area(E),Circularity(E)] F texture =[Contrast(E),Correlation(E),Energy(E),Homogeneity(E)] F=[F texture ,F shape ] y=sign(W T F+b) Among them, F shape represents the shape feature of image E, Perimeter(E) represents the perimeter of the contour in image E, Area(E) represents the area of ​​the region enclosed by the contour in image E, Circularity(E) represents the circularity in image E, [,] represents vector concatenation, and F texture represents the texture feature of image E, Contrast(E) represents the contrast of image E, Correlation(E) represents the correlation of image E, Energy(E) represents the thickness of the texture of the grayscale distribution of image E, Homogeneity(E) represents the similarity of local grayscale values ​​in image E, F represents the feature vector, y represents the classification result, and its value is +1 or -1, representing that the sealing ring (6) is damaged or not damaged, respectively, sign(·) represents the sign function, and W T represents the transpose of the weight vector and b represents the bias.

10. The auxiliary device for charging a solid-liquid continuous casting composite furnace according to claim 7 or 8, characterized in that: The flow detection unit and the visual detection unit are also connected to the solid-liquid continuous casting composite furnace charging controller. When the flow detection unit and the visual detection unit detect that the sealing ring (6) is damaged, the solid-liquid continuous casting composite furnace charging controller immediately stops the charging operation.

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