Aluminum and aluminum alloy casting locking safety control system and control method

Abstract

The invention relates to the technical field of aluminum machining and casting, in particular to an aluminum and aluminum alloy casting locking safety control system and method.The aluminum and aluminum alloy casting locking safety control system comprises a smelting furnace, a launder, a casting machine, a data acquisition unit, an execution unit and a control cabinet, the launder is arranged on the lower side of a furnace eye discharge opening of the smelting furnace, and the casting machine is arranged at the tail end of the launder; the data acquisition unit is connected with a signal input end of a controller in the control cabinet, and a signal output end of the controller is connected with the execution unit; the execution unit comprises a first flow control executor arranged at a furnace eye discharge port, a second flow control executor arranged at the tail end of the launder and a closure executor arranged in the middle of the launder; the data acquisition unit comprises a casting speed acquisition module in communication connection with a casting machine control system, a liquid level acquisition device erected on a launder at the rear end of the first flow control actuator and a flow acquisition device erected on a launder at the rear end of the second flow control actuator. The liquid level height and the flow of the molten aluminum are automatically controlled, and the safety risk caused by sudden change of the liquid level of the molten aluminum can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum processing and casting, and in particular to an aluminum and aluminum alloy casting locking safety control system and a control method. Background Art

[0002] Traditional aluminum and aluminum alloy production and casting usually uses a furnace to purify the aluminum melt, then introduces the aluminum liquid at about 720°C into the casting machine through a launder. It is cooled and crystallized in the casting machine to form a cast billet, which is then transferred to the next process. During the casting process, the flow rate of molten aluminum in the trough, the liquid level in the trough, and the liquid level of the casting machine are controlled by plugging the discharge port of the furnace eye. The above process mainly relies on manual monitoring and mechanical control, and has the following significant defects: (1) It is difficult for operators to accurately control the flow rate of molten aluminum, which can easily cause casting defects due to abnormal flow rate, and even cause safety accidents such as blockage of the casting machine; (2) Relying only on a single flow control device, such as a furnace eye plug, when there is an emergency such as leakage in the trough or sudden failure of the casting machine, the molten aluminum passage cannot be quickly cut off, which may cause uncontrolled flow of molten aluminum, causing serious consequences such as equipment damage or burns to personnel; (3) When the liquid level and flow data deviate from the safety threshold, the actuator cannot be automatically triggered to adjust the opening or start the alarm, which often leads to delayed problem discovery and missed the best time to deal with it; (4) The low degree of automation leads to high labor intensity for operators to patrol.

[0003] In summary, the existing aluminum and aluminum alloy casting systems have significant deficiencies in automation control, safety protection and emergency response. Therefore, there is an urgent need for a safety control system with multi-parameter real-time monitoring, multi-level linkage control, rapid flow cutoff and locking, and intelligent early warning functions to improve the safety and reliability of the casting process. Summary of the Invention

[0004] The object of the present invention is to provide an aluminum and aluminum alloy casting locking safety control system and control method to solve the technical problems pointed out in the background technology.

[0005] The present invention is achieved through the following technical solutions: a closed-loop safety control system for aluminum and aluminum alloy casting, comprising a furnace, a launder, a casting machine, a data acquisition unit, an execution unit, and a control cabinet, wherein the control cabinet comprises a human-machine interface, a controller, and an alarm, wherein the human-machine interface and the alarm are both connected to the controller, the launder is arranged at the lower side of the furnace eye discharge port, the casting machine is arranged at the end of the launder, the data acquisition unit is connected to the signal input end of the controller, and the signal output end of the controller is connected to the execution unit; The execution unit includes a first flow control actuator arranged at the discharge port of the furnace eye, a second flow control actuator arranged at the end of the flow channel, and a cut-off actuator arranged between the first flow control actuator and the second flow control actuator. The data acquisition unit includes a casting speed acquisition module connected to the casting machine control system, a liquid level acquisition device mounted on the flow channel at the rear end of the first flow control actuator, and a flow rate acquisition device mounted on the flow channel at the rear end of the second flow control actuator. An aluminum discharge port is provided on the flow channel between the first flow control actuator and the second flow control actuator, and the cut-off actuator includes a first cut-off device arranged at the aluminum discharge port and a second cut-off device arranged at the flow channel at the rear end of the first cut-off device.

[0006] According to a preferred embodiment, the first shut-off device and the second shut-off device are both composed of a shut-off valve and an opening and closing control mechanism, and the shut-off valve and the opening and closing control mechanism are connected by a connecting rod, wherein the shape of the shut-off valve on the first shut-off device is adapted to the inner wall of the aluminum discharge port, and the shut-off valve on the second shut-off device is adapted to the shape of the chute.

[0007] According to a preferred embodiment, the first flow control actuator is composed of a first driving device, a brazing rod and a first blocking device. The shape of the first blocking device is adapted to the inner wall of the furnace eye discharge port. The first end of the brazing rod is connected to the first blocking device, and the second end of the brazing rod is connected to the output end of the first driving device to drive the first blocking device to move along the axis of the furnace eye under the drive of the first driving device.

[0008] According to a preferred embodiment, the second flow control actuator is composed of a second driving device, a connecting rod and a second blocking device. The shape of the second blocking device is adapted to the inner wall of the flow tube downspout at the end of the flow channel. The first end of the connecting rod is connected to the second blocking device, and the second end of the connecting rod is connected to the output end of the second driving device to drive the second blocking device to move vertically under the drive of the second driving device.

[0009] According to a preferred embodiment, the liquid level acquisition device is one of a laser rangefinder, a radar rangefinder and an ultrasonic rangefinder, and the flow acquisition device is one of an electromagnetic flowmeter, an ultrasonic flowmeter and a radar flowmeter.

[0010] According to a preferred embodiment, it further includes an aluminum liquid probe, which is arranged at the discharge port of the furnace eye, and a signal output end of the aluminum liquid probe is connected to the controller.

[0011] According to a preferred embodiment, the control cabinet further includes a UPS emergency power supply, and the UPS emergency power supply is connected to the controller.

[0012] According to a preferred embodiment, the device further includes an image acquisition device and a storage device, both of which are connected to the controller.

[0013] The present invention also provides a locking safety control method for aluminum and aluminum alloy castings, which is applied to the above-mentioned locking safety control system for aluminum and aluminum alloy castings, and comprises the following steps: Receive the liquid level data acquired by the liquid level acquisition device, the aluminum liquid flow data acquired by the flow acquisition device, and the casting speed acquired by the casting speed acquisition module; The first aluminum liquid throughput is calculated based on the liquid level data, the second aluminum liquid throughput is calculated based on the aluminum liquid flow rate data, and the third aluminum liquid throughput is calculated based on the casting speed; Determine whether the first aluminum liquid throughput and the second aluminum liquid throughput meet a preset condition. If the first preset condition is met, generate a first control instruction. If the second preset condition is met, generate a second control instruction. The first preset condition is that the first aluminum liquid throughput and / or the second aluminum liquid throughput is greater than the target throughput and is within a first preset warning range. The first control instruction is used to instruct the corresponding execution unit to automatically adjust the opening and activate the alarm. The second preset condition is that the first aluminum liquid throughput and / or the second aluminum liquid throughput is greater than the first preset warning range. The second control instruction is used to instruct the execution unit to perform blocking and open the first shut-off device and close the second shut-off device.

[0014] According to a preferred embodiment, the method further comprises: The first deviation value and the second deviation value are obtained by subtracting the first aluminum liquid flow rate, the second aluminum liquid flow rate and the third aluminum liquid flow rate in pairs; Determine whether the first deviation value and the second deviation value meet the preset conditions. If the third preset condition is met, generate a third control instruction. If the fourth preset condition is met, generate a fourth control instruction. The third preset condition is that the first deviation value and / or the second deviation value is greater than the preset allowable deviation and is within the second preset warning range. The third control instruction is used to instruct the alarm to start. The fourth preset condition is that the first deviation value and / or the second deviation value is greater than the second preset warning range. The fourth control instruction is used to instruct the execution unit to perform blocking and open the first shut-off device and close the second shut-off device.

[0015] The technical solutions of the aluminum and aluminum alloy casting locking safety control system and control method provided by the present invention have at least the following advantages and beneficial effects: (1) The present invention realizes high-precision automatic control of the aluminum liquid level and flow rate from the furnace eye to the casting machine in the traditional aluminum and aluminum alloy casting process, which can effectively reduce the safety risks caused by sudden changes in the aluminum liquid level during the casting process, especially sudden drops; (2) The use of liquid level and flow detection and judgment, multi-level closed-loop interlocking control, and real-time monitoring of the entire casting process can greatly reduce the casting safety risks, and can also respond quickly when an accident occurs, thereby minimizing the risks and reducing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall layout of the aluminum and aluminum alloy casting locking safety control system provided in Example 1 of the present invention; Figure 2 A schematic diagram of a flow chart for performing throughput determination according to Embodiment 2 of the present invention; Figure 3 A schematic diagram of a process for performing deviation determination according to Embodiment 2 of the present invention; Reference numerals: 1 - furnace, 2 - first flow control actuator, 3 - shut-off actuator, 4 - second flow control actuator, 5 - liquid level collecting device, 6 - flow collecting device, 7 - casting machine, 8 - control cabinet. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0018] Example 1 This embodiment provides an aluminum and aluminum alloy casting locking safety control system. Figure 1 This is the overall layout diagram of the aluminum and aluminum alloy casting locking safety control system, see Figure 1 As shown, the aluminum and aluminum alloy casting locking safety control system includes a furnace 1, a launder, a casting machine 7, a data acquisition unit, an execution unit and a control cabinet 8.

[0019] Among them, the control cabinet 8 is composed of a human-computer interaction interface, a controller and an alarm. The human-computer interaction interface and the alarm are both connected to the controller. The human-computer interaction interface can be used to set the preset control parameters of each execution unit, and the alarm is used to emit sound and light alarms when receiving control instructions from the controller, which serves as a prompt.

[0020] The launder is arranged at the lower side of the discharge port of the furnace 1 to provide a flow channel for the aluminum liquid. The casting machine 7 is arranged at the end of the launder. The aluminum liquid is introduced into the casting machine 7 through the launder, and is cooled and crystallized at the casting machine 7 to form a cast billet, which is then transferred to the next process.

[0021] The data acquisition unit is connected to the signal input end of the controller, the signal output end of the controller is connected to the execution unit, and the controller controls the execution unit based on the data collected by the data acquisition unit.

[0022] In some implementations of this embodiment, the execution unit includes a first flow control actuator 2, a second flow control actuator 4 and a shut-off actuator 3; wherein, the first flow control actuator 2 is arranged at the furnace eye discharge port, for realizing the control of the conduction of the furnace eye discharge port, and can control the inflow of molten aluminum by controlling its opening; the second flow control actuator 4 is arranged at the end of the flow trough, for realizing the control of the conduction of the flow tube downspout at the end of the flow trough, and can control the outflow of molten aluminum by controlling its opening; the shut-off actuator 3 is arranged between the first flow control actuator 2 and the second flow control actuator 4, for releasing the molten aluminum in the downflow trough in an emergency.

[0023] In some embodiments, the first flow control actuator 2 is composed of a first drive device, a brazing rod, and a first blocking device. The shape of the first blocking device is adapted to the inner wall of the furnace eye discharge port. The first end of the brazing rod is connected to the first blocking device, and the second end of the brazing rod is connected to the output end of the first drive device. The first drive device provides power to drive the first blocking device to move along the axis of the furnace eye under the drive of the first drive device. The inflow of molten aluminum is then adjusted by changing the gap between the first blocking device and the furnace eye discharge port. The larger the gap, the greater the inflow, and vice versa. When the gap is completely blocked, the inflow is zero. In this embodiment, the brazing rod is made of high-temperature and corrosion-resistant steel.

[0024] The second flow control actuator 4 consists of a second drive device, a connecting rod, and a second blocking device. The second blocking device's shape is adapted to fit the inner wall of the flow tube outlet at the end of the flow trough. The first end of the connecting rod is connected to the second blocking device, and the second end of the connecting rod is connected to the output end of the second drive device. The second drive device provides power to drive the second blocking device to move vertically. The amount of molten aluminum poured is then adjusted by varying the gap between the second blocking device and the flow tube outlet. A larger gap results in a greater amount of aluminum poured, while a smaller gap results in a smaller amount. When fully blocked, the amount of aluminum poured is zero. In this embodiment, the second blocking device can move up, down, left, and right. Specifically, this embodiment uses electric drive to control the inflow / flow of molten aluminum, enabling precise control of the aluminum flow rate.

[0025] The data acquisition unit includes a casting speed acquisition module, a liquid level acquisition device 5, and a flow rate acquisition device 6. In some embodiments, the liquid level acquisition device 5 is one of a laser rangefinder, a radar rangefinder, and an ultrasonic rangefinder, and the flow rate acquisition device 6 is one of an electromagnetic flowmeter, an ultrasonic flowmeter, or a radar flowmeter. It should be noted that when implementing multi-point close-range detection, different radar transmission frequencies can be set for the radar rangefinders / radar flowmeters to avoid mutual interference between radar beams emitted by adjacent radar rangefinders / radar flowmeters, thereby improving measurement accuracy.

[0026] The casting speed acquisition module is communicatively connected to the control system of the casting machine 7, and through linkage with the control system of the casting machine 7, the casting speed of the casting machine 7 is obtained in real time; the liquid level acquisition device 5 is mounted on the flow channel at the rear end of the first flow control actuator 2, and is used to accurately monitor the height of the aluminum liquid in the flow channel; the flow acquisition device 6 is mounted on the flow channel at the rear end of the second flow control actuator 4, and is used to quantify the flow rate of the aluminum liquid.

[0027] The shut-off actuator 3 includes a first shut-off device and a second shut-off device. An aluminum discharge port is provided on the flow channel between the first flow control actuator 2 and the second flow control actuator 4. The first shut-off device is provided at the aluminum discharge port to control the conduction of the aluminum discharge port and to control the aluminum discharge amount by controlling its opening. The second shut-off device is provided at the flow channel at the rear end of the first shut-off device to control the conduction of the flow channel at the rear end of the first shut-off device.

[0028] In some embodiments, the first shut-off device and the second shut-off device are both composed of a shut-off valve and an opening and closing control mechanism, and the shut-off valve and the opening and closing control mechanism are connected by a connecting rod, wherein the shape of the shut-off valve on the first shut-off device is adapted to the inner wall of the aluminum discharge port, thereby achieving a tight overlap with the aluminum discharge port; the shut-off valve on the second shut-off device is adapted to the shape of the chute, thereby achieving a tight overlap with the chute.

[0029] Furthermore, in order to realize timely monitoring of aluminum leakage, this embodiment is also provided with an aluminum liquid probe, which is arranged at the discharge port of the furnace eye, and its signal output end is connected to the controller; the probe serves as a detection electrode. When there is aluminum liquid leakage, the leaked aluminum liquid contacts the probe, making the probe circuit conductive, and then triggering the alarm to issue an alarm, prompting the operator to deal with it in time to prevent the occurrence of safety accidents.

[0030] In order to cope with emergency power outages, this embodiment is equipped with a UPS emergency power supply in the control cabinet 8, and the UPS emergency power supply is connected to the controller; when the system is operating normally, the UPS emergency power supply is in a fully charged standby state. When an emergency power outage occurs, the controller switches to providing power to the entire system through the UPS emergency power supply, and controls each execution unit to perform the flow blocking and intercepting operations at the corresponding position.

[0031] In addition, the system provided in this embodiment also includes an image acquisition device and a storage device, and the image acquisition device and the storage device are both connected to the controller; in this embodiment, the image acquisition device adopts closed-circuit video monitoring, including a camera, a video recorder and an image collector, which is used to obtain on-site images and store the on-site images locally for subsequent retrieval and use. In addition, it can also be remotely transmitted to a central control room, etc. to achieve remote observation.

[0032] In summary, the use of liquid level and flow detection and judgment, multi-level closed-loop interlocking control, and real-time monitoring of the entire casting process can greatly reduce casting safety risks. When accidents occur, a quick response can be made to minimize risks and thus reduce losses.

[0033] Example 2 This embodiment is based on the technical solution provided in Example 1 and provides a control method for the aluminum and aluminum alloy casting locking safety control system applied to Example 1. Figure 2 As shown, the control method includes the following steps: Step 1: Receive the liquid level data acquired by the liquid level acquisition device 5, the aluminum liquid flow data acquired by the flow acquisition device 6, and the casting speed acquired by the casting speed acquisition module.

[0034] Step 2: Calculate the first aluminum liquid throughput based on the liquid level data, calculate the second aluminum liquid throughput based on the aluminum liquid flow data, and calculate the third aluminum liquid throughput based on the casting speed.

[0035] In this embodiment, the calculation expression of the first aluminum liquid throughput is: ,in, Indicates the amount of the first aluminum liquid passed through, represents the cross-sectional area of ​​the flow channel, Indicates the change in liquid level. Indicates the time interval, reflecting the accumulation / consumption rate of aluminum liquid in the flow channel; the second aluminum liquid throughput The calculation expression is , represents the actual liquid supply; the third aluminum liquid through The calculation expression is ,in, represents the cross-sectional area of ​​the ingot, Indicates the casting speed as a benchmark for target throughput.

[0036] Step 3: Determine whether the first aluminum liquid throughput and the second aluminum liquid throughput meet a preset condition. If the first preset condition is met, generate a first control instruction; if the second preset condition is met, generate a second control instruction.

[0037] In this embodiment, the target balance is set to , the preset allowable fluctuation of ±5% for the aluminum liquid throughput, for example The preset warning range is set at 5% to 10% to ensure the supply and demand of molten aluminum and avoid ingot quality defects.

[0038] The first preset condition is that the first aluminum liquid throughput and / or the second aluminum liquid throughput is greater than the target throughput and is within the first preset warning range, that is, and / or Meet the conditions , the first control instruction is used to instruct the corresponding execution unit to automatically adjust the opening and activate the alarm; in some embodiments, when the alarm is activated due to the first preset condition, the alarm emits a yellow light alarm; the second preset condition is that the first aluminum liquid flow rate and / or the second aluminum liquid flow rate is greater than the first preset warning range, that is, and / or Meet the conditions or , when the conditions are met When the condition is met, the second control instruction is used to instruct the execution unit to perform the blocking and open the first intercepting device and close the second intercepting device. When the second control instruction is used to instruct the execution unit to open and close the first intercepting device and open the second intercepting device.

[0039] While executing step 3, determine the deviation value. Figure 3 As shown, the specific steps include: The first deviation value and the second deviation value are obtained by taking the difference between the first aluminum liquid flow rate, the second aluminum liquid flow rate and the third aluminum liquid flow rate. and Do the difference and get the first deviation value , to reflect whether the liquid level of aluminum liquid in the middle section of the flow channel is balanced; and Do the difference and get the second deviation value , to reflect whether the liquid level of the aluminum liquid in the rear section of the launder is balanced.

[0040] Determine whether the first deviation value and the second deviation value meet the preset conditions. If the third preset condition is met, generate a third control instruction. If the fourth preset condition is met, generate a fourth control instruction. The third preset condition is that the first deviation value and / or the second deviation value is greater than the preset allowable deviation and is within the second preset warning range. , the third control instruction is used to instruct the alarm to start; in some embodiments, when the alarm is started due to the third preset condition, the alarm performs a yellow sound and light alarm; the fourth preset condition is that the first deviation value and / or the second deviation value is greater than the second preset warning range, that is , when the conditions are met The fourth control instruction is used to instruct the execution unit to perform blocking and open the first intercepting device and close the second intercepting device. When the condition is met When the fourth control instruction is used to instruct the execution unit to open and close the first intercepting device and open the second intercepting device; in some embodiments, when the alarm is activated due to the fourth preset condition, the alarm performs a red sound and light alarm.

[0041] In summary, this embodiment realizes high-precision automated control of the aluminum liquid level and flow rate from the furnace eye to the casting machine during the traditional aluminum and aluminum alloy casting process, which can effectively reduce the safety risks caused by sudden changes in the aluminum liquid level during the casting process, especially sudden drops.

[0042] Example 3 This embodiment is based on the technical solution provided in Example 2. In addition to Example 2, temperature monitoring is added to modify the first aluminum liquid throughput, the second aluminum liquid throughput, and the third aluminum liquid throughput in the control strategy of Example 2. The details are as follows: An infrared temperature array is installed in the middle of the launder and the inlet section of the casting machine to collect the temperature distribution of the molten aluminum in real time. Furthermore, the throughput of each molten aluminum is compensated in real time based on the temperature distribution of the molten aluminum. In some embodiments, the compensation expression is: ,in is the corrected aluminum liquid throughput, To measure the amount of aluminum liquid passing through, To set the aluminum liquid temperature, is the measured value of aluminum liquid temperature, is the correction factor.

[0043] This embodiment can effectively improve the measurement accuracy of the aluminum liquid throughput through temperature-flow coupling correction.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A locking safety control system for aluminum and aluminum alloy castings, characterized in that: The invention comprises a melting furnace (1), a launder, a casting machine (7), a data acquisition unit, an execution unit and a control cabinet (8), wherein the control cabinet (8) is composed of a human-machine interaction interface, a controller and an alarm, wherein the human-machine interaction interface and the alarm are both connected to the controller, the launder is arranged at the lower side of the furnace eye discharge port of the melting furnace (1), the casting machine (7) is arranged at the end of the launder, the data acquisition unit is connected to the signal input end of the controller, and the signal output end of the controller is connected to the execution unit; The execution unit comprises a first flow control actuator (2) arranged at the furnace eye discharge port, a second flow control actuator (4) arranged at the end of the flow channel, and a cut-off actuator (3) arranged between the first flow control actuator (2) and the second flow control actuator (4); the data acquisition unit comprises a casting speed acquisition module communicatively connected to a casting machine (7) control system, a liquid level acquisition device (5) mounted on the flow channel at the rear end of the first flow control actuator (2), and a flow rate acquisition device (6) mounted on the flow channel at the rear end of the second flow control actuator (4); An aluminum discharge port is provided on the flow channel between the first flow control actuator (2) and the second flow control actuator (4), and the cut-off actuator (3) comprises a first cut-off device provided at the aluminum discharge port and a second cut-off device provided at the flow channel at the rear end of the first cut-off device.

2. The aluminum and aluminum alloy casting locking safety control system according to claim 1, characterized in that: The first shut-off device and the second shut-off device are both composed of a shut-off valve and an opening and closing control mechanism, which are connected to the opening and closing control mechanism through a connecting rod. The shape of the shut-off valve on the first shut-off device is adapted to the inner wall of the aluminum discharge port, and the shut-off valve on the second shut-off device is adapted to the shape of the chute.

3. The aluminum and aluminum alloy casting locking safety control system according to claim 1, characterized in that: The first flow control actuator (2) is composed of a first driving device, a brazing rod and a first blocking device. The shape of the first blocking device is adapted to the inner wall of the furnace eye discharge port. The first end of the brazing rod is connected to the first blocking device, and the second end of the brazing rod is connected to the output end of the first driving device, so as to drive the first blocking device to move along the axis of the furnace eye under the drive of the first driving device.

4. The aluminum and aluminum alloy casting locking safety control system according to claim 1, characterized in that: The second flow control actuator (4) is composed of a second driving device, a connecting rod and a second blocking device. The shape of the second blocking device is adapted to the inner wall of the flow tube outlet at the end of the flow channel. The first end of the connecting rod is connected to the second blocking device, and the second end of the connecting rod is connected to the output end of the second driving device, so as to drive the second blocking device to move in the vertical direction under the drive of the second driving device.

5. The aluminum and aluminum alloy casting locking safety control system according to claim 1, characterized in that: The liquid level acquisition device (5) is one of a laser rangefinder, a radar rangefinder and an ultrasonic rangefinder, and the flow acquisition device (6) is one of an electromagnetic flowmeter, an ultrasonic flowmeter and a radar flowmeter.

6. The aluminum and aluminum alloy casting locking safety control system according to claim 1, characterized in that: It also includes an aluminum liquid probe, which is arranged at the discharge port of the furnace eye, and a signal output end of the aluminum liquid probe is connected to the controller.

7. The aluminum and aluminum alloy casting locking safety control system according to claim 1, characterized in that: The control cabinet (8) also includes a UPS emergency power supply, which is connected to the controller.

8. The aluminum and aluminum alloy casting locking safety control system according to claim 1, characterized in that: It also includes an image acquisition device and a storage device, both of which are connected to the controller.

9. A method for controlling the safety of aluminum and aluminum alloy casting locking, characterized in that: The aluminum and aluminum alloy casting locking safety control system according to any one of claims 1 to 8 comprises the following steps: receiving liquid level data acquired by a liquid level acquisition device (5), aluminum liquid flow data acquired by a flow acquisition device (6), and a casting speed acquired by a casting speed acquisition module; The first aluminum liquid throughput is calculated based on the liquid level data, the second aluminum liquid throughput is calculated based on the aluminum liquid flow rate data, and the third aluminum liquid throughput is calculated based on the casting speed; Determine whether the first aluminum liquid throughput and the second aluminum liquid throughput meet a preset condition. If the first preset condition is met, generate a first control instruction. If the second preset condition is met, generate a second control instruction. The first preset condition is that the first aluminum liquid throughput and / or the second aluminum liquid throughput is greater than the target throughput and is within a first preset warning range. The first control instruction is used to instruct the corresponding execution unit to automatically adjust the opening and activate the alarm. The second preset condition is that the first aluminum liquid throughput and / or the second aluminum liquid throughput is greater than the first preset warning range. The second control instruction is used to instruct the execution unit to perform blocking and open the first shut-off device and close the second shut-off device.

10. The aluminum and aluminum alloy casting locking safety control method according to claim 9, characterized in that: The method also includes: The first deviation value and the second deviation value are obtained by subtracting the first aluminum liquid flow rate, the second aluminum liquid flow rate and the third aluminum liquid flow rate in pairs; Determine whether the first deviation value and the second deviation value meet the preset conditions. If the third preset condition is met, generate a third control instruction. If the fourth preset condition is met, generate a fourth control instruction. The third preset condition is that the first deviation value and / or the second deviation value is greater than the preset allowable deviation and is within the second preset warning range. The third control instruction is used to instruct the alarm to start. The fourth preset condition is that the first deviation value and / or the second deviation value is greater than the second preset warning range. The fourth control instruction is used to instruct the execution unit to perform blocking and open the first shut-off device and close the second shut-off device.

Images