Blast furnace stokehole molten iron transportation intelligent control device based on cloud-edge coordination

Abstract

The invention discloses a blast furnace stokehole molten iron transportation intelligent control device based on cloud-edge coordination, and belongs to the technical field of automatic control. The system comprises a blast furnace stokehole workshop, a first hot-metal ladle locomotive, a second hot-metal ladle locomotive, a chute swing nozzle, a variable frequency motor, a first video monitor, a second video monitor, a third video monitor, a first molten iron liquid level radar, a second molten iron liquid level radar, a data video projection display and a stokehole control module. The actions and states of the first hot-metal ladle locomotive, the second hot-metal ladle locomotive and the chute swing nozzle are monitored through video monitoring, and the weight of molten iron borne by the first hot-metal ladle locomotive and the second hot-metal ladle locomotive is monitored through the weighing sensor set. In addition, the stokehole control module gathers and transmits various data to a cloud machine room integrated L data acquisition system, and establishes a cloud edge data collaborative interaction system to plan L data resources of each segment as a whole. The invention solves the problem that the existing blast furnace stokehole molten iron transportation technology is not favorable for improving the production efficiency due to low automation degree.

Description

Technical Field

[0001] The present invention belongs to the field of automation control technology, and specifically relates to an intelligent control device for molten iron transportation in front of a blast furnace based on cloud-edge collaboration. Background Art

[0002] Blast furnace production conditions are complex, and furnace front equipment, molten iron tanks, rail scales, etc. need to work reliably in harsh working environments such as high temperature, dust, vibration, and strong interference. At present, in the metallurgical industry, the intelligent transportation of molten iron in front of blast furnaces has received widespread attention. In production practice, there are still the following deficiencies:

[0003] (1) The iron transporter pushes the molten iron ladle into the furnace bottom, which requires manual alignment, which poses certain safety hazards. The alignment accuracy is greatly affected by the experience of the personnel, and alignment deviation can easily cause molten iron weighing errors;

[0004] (2) After the molten iron ladle enters the furnace bottom, it is necessary to manually observe whether the molten iron ladle has water accumulation or defects to avoid accidents such as explosion;

[0005] (3) The weighing system still uses traditional analog data collection and aggregation to the control system, which has low efficiency and large errors.

[0006] (4) Each segment of information is in a telephone contact state, with no intuitive data or screen display, low efficiency and subjectivity, and low accuracy.

[0007] In summary, the existing molten iron transportation technology in front of the blast furnace requires a large amount of manpower to operate, which is not only inefficient but also has safety hazards. The overall degree of automation is low, which is not conducive to production monitoring and improving production efficiency. Summary of the invention

[0008] The present invention provides an intelligent control device for molten iron transportation in front of a blast furnace based on cloud-edge collaboration, so as to solve the problem that the existing molten iron transportation technology in front of a blast furnace is not conducive to improving production efficiency due to its low degree of automation.

[0009] In order to achieve the above object, the technical solution adopted by the present invention is:

[0010] A blast furnace molten iron transportation intelligent control device based on cloud-edge collaboration, comprising a blast furnace front building, two rails, a molten iron ladle locomotive, a molten iron ladle locomotive, a chute swing spout, a mechanical transmission shaft and a frequency conversion motor; the two rails are arranged in parallel, one end of which is located in the blast furnace front building, and the other end extends to the outside of the blast furnace front building, the molten iron ladle locomotive one and the molten iron ladle locomotive two are respectively arranged on the two rails; the chute swing spout is rotatably installed on a support frame in the blast furnace front building through a mechanical transmission shaft, and is located above the two rails, and the mechanical transmission The shaft is connected to the variable frequency motor, the variable frequency motor is fixedly mounted on the support frame, and an angle encoder is arranged on the mechanical transmission shaft; a locomotive sensor group and a track scale are arranged on the two rails; the locomotive sensor group is located outside the door of the factory building in front of the blast furnace, and the track scale is located in the factory building in front of the blast furnace; the track scale is provided with a weighing sensor group, and a front wheel mark and a rear wheel mark are arranged corresponding to the front and rear wheels of the molten iron ladle locomotive one or the front and rear wheels of the molten iron ladle locomotive two, and a weighing point alignment area is formed between the front wheel mark and the rear wheel mark;

[0011] The blast furnace front plant is provided with video surveillance 1, video surveillance 2, video surveillance 3, molten iron level radar 1 and molten iron level radar 2. The action and state of the molten iron ladle locomotive 1 and the molten iron ladle locomotive 2 are monitored by video surveillance 1 and video surveillance 2, the action and state of the chute swinging mouth are monitored by video surveillance 3, and the molten iron level radar 1 and the molten iron level radar 2 are respectively used to monitor the molten iron level in the molten iron ladle locomotive 1 and the molten iron ladle locomotive 2; the molten iron level radar 1 and the molten iron level radar 2 are respectively located directly above the two weighing point alignment areas of the two rails;

[0012] The blast furnace front plant is also provided with a data video display, a furnace front control module, a wireless communication transmitter and a railway transportation metering control module; the locomotive sensor group, the weighing sensor group, the frequency conversion motor, the angle encoder, the molten iron level radar 1, the molten iron level radar 2, the video monitoring 1, the video monitoring 2, the video monitoring 3, the data video display, the wireless communication transmitter and the railway transportation metering control module are all connected to the furnace front control module; the furnace front control module is connected to the cloud computer room through a communication link;

[0013] The furnace control module collects and transmits the data collected by the locomotive sensor group, the weighing sensor group, the angle encoder, the molten iron level radar 1, the video monitoring 1, the video monitoring 2, the video monitoring 3, and the molten iron level radar 2 to the cloud computer room integrated L data acquisition system, and establishes a cloud-edge data collaborative interaction system to coordinate the L data resources of each segment;

[0014] The molten iron ladle locomotive 1 and the molten iron ladle locomotive 2 are both provided with a wireless communication receiving and processing device, and the wireless communication transmitting device is communicatively connected with the wireless communication receiving and processing device; the cloud-edge data collaborative interaction system transmits information to the wireless communication transmitting device through the furnace front control module, and sends instructions to the wireless communication receiving and processing device through the wireless communication transmitting device to control the molten iron ladle locomotive 1 and the molten iron ladle locomotive 2 to complete the specified action;

[0015] The cloud-edge data collaborative interaction system transmits information to the variable frequency motor through the furnace front control module, controlling the variable frequency motor to drive the chute mouth to complete the specified action.

[0016] Furthermore, an intermediate weighing platform is also provided on the railroad track, the locomotive sensor group is located between the intermediate weighing platform and the track scale, the intermediate weighing platform is connected to the railway transport metering control module, and the railway transport metering control module collects and transmits the data collected by the intermediate weighing platform to the cloud computer room integrated L data acquisition system.

[0017] Furthermore, a railway signal light 1 and a railway signal light 2 are respectively provided outside the door of the blast furnace front plant corresponding to the two rails, and the railway signal light 1 and the railway signal light 2 are both connected to the furnace front control module.

[0018] Furthermore, the control process of the molten iron ladle locomotive is as follows: when the molten iron ladle locomotive performs the molten iron transportation task, the furnace front control module sends a forward instruction to the molten iron ladle locomotive, and the molten iron ladle locomotive performs a forward action. When the molten iron ladle locomotive passes the locomotive sensor group, the locomotive sensor group transmits the factory building sensing signal B1 to the furnace front control module. At this time, the furnace front control module sends an instruction to open the insulation cover to the molten iron ladle locomotive, and the molten iron ladle locomotive automatically opens the insulation cover and continues to move forward; when the molten iron ladle locomotive enters the blast furnace front factory building, it enters the weighing point alignment area on the track scale and automatically aligns under the monitoring of video surveillance one and video surveillance two; after the automatic alignment is completed, the furnace front The control module controls the operation of the variable frequency motor, drives the mechanical transmission shaft to turn the chute mouth, aligns the molten iron on the molten iron ladle locomotive one, and performs the molten iron conveying operation; when the molten iron is full, the furnace front control module controls the operation of the variable frequency motor, drives the mechanical transmission shaft to turn the chute mouth, and completes the molten iron conveying operation; after that, the furnace front control module sends a departure command to the molten iron ladle locomotive one, and the molten iron ladle locomotive one automatically closes the insulation cover and drives out of the factory building in front of the blast furnace. When passing the locomotive sensor group, the locomotive sensor group transmits the factory building sensing signal B2 to the furnace front control module, and the furnace front control module transmits the signal to the cloud-edge data collaborative interaction system; the control process of the molten iron ladle locomotive two is the same as that of the molten iron ladle locomotive one.

[0019] Furthermore, the furnace front control module collects the video switch quantity information and position data quantity information of video surveillance one and video surveillance two through the conversion protocol, and displays the data on the data video projection display; the video surveillance one, video surveillance two and video surveillance three are all communicated with the data video projection display, and are used to display the operation pictures of the molten iron ladle locomotive one, the molten iron ladle locomotive two and the chute swing mouth in real time.

[0020] Furthermore, the front wheel mark position is set to G1, the rear wheel mark position is set to G2, the straight-line distance between G1 and G2 is G3, the molten iron ladle locomotive travels within the range of G3, the adjustment speed is set to H, and H includes the forward and backward fine-tuning amount; the furnace front control module controls the molten iron ladle locomotive to complete automatic alignment within the range of G3 based on the data collected by video surveillance one and video surveillance two.

[0021] Furthermore, the weighing signal feedback detected by the weighing sensor group is set to net weight C and gross weight D. When net weight C<M1 and gross weight D<M2, it is an asymmetric weight position, which is regarded as no tank car and is included in the no tank alarm prompt condition; the net weight high alarm is M3 and the gross weight high alarm is M4; the molten iron level is set to Q, the low alarm is Q1, the green light for the aligned tank is Q2, the abnormal high alarm is Q3, and the high alarm is Q4; when the weighing signal net weight C≥M1 value, gross weight D≥M2, Q3>Q≥Q2, it means that the tanks on the double rails are aligned and the molten iron transportation operation can be performed; when Q≥Q4 or C≥M3, D≥M4, it is regarded as the molten iron is full and the molten iron transportation operation is completed.

[0022] Furthermore, the angle encoder is used to feedback the swing angle of the chute spout, the positive deflection corresponds to the molten iron ladle locomotive one, and the set angle is N1, the negative deflection corresponds to the molten iron ladle locomotive two, and the set angle is N2; the positive deflection alarm angle is set to N11, and the negative deflection alarm angle is set to N22; when the molten iron in the molten iron ladle locomotive one or the molten iron ladle locomotive two is full, there is molten iron on the trough spout, and the front-of-furnace control module outputs the swing angle instruction to the frequency conversion motor according to the feedback value of the angle encoder, the angle alarm stop instruction, the weighing changes of the molten iron ladle locomotive one and the molten iron ladle locomotive two, and the feedback from the video monitor one, and the frequency conversion motor drives the chute spout to automatically and safely align.

[0023] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0024] 1. The present invention utilizes cloud-edge combined technology to coordinate various types of data transmission and build a cloud-edge data collaborative interaction system to coordinate various types of data resources, allocate resources to give effective control to each segment, collect video signals and digital weighing signals, monitor the forward operation of the molten iron ladle locomotive, automatically align the weighing point, and reasonably adjust the swing direction to realize intelligent adjustment operation and information sharing.

[0025] 2. The present invention realizes automatic alignment of the blast furnace molten iron tank with high precision, and does not require on-site operation by personnel, which is safe and reliable; it realizes automatic control of the swinging chute and the swinging spout, reduces manpower and material resources, and automatically monitors, avoiding accidental injuries caused by explosion due to water accumulation in the molten iron tank; the degree of intelligence is improved, and data collaboration is achieved, which greatly improves the turnover efficiency of the molten iron tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the intelligent control device for molten iron transportation in front of a blast furnace proposed by the present invention;

[0027] Figure 2 It is a control flow chart of the intelligent control device for molten iron transportation in front of a blast furnace proposed by the present invention;

[0028] The marks in the attached figure are: 1-hot iron ladle locomotive one, 2-railway, 3-blast furnace front building, 4-locomotive sensor group, 5-track scale, 6-weighing sensor group, 7-rear wheel mark, 8-front wheel mark, 9-railway signal light one, 10-chute swing mouth, 11-mechanical transmission shaft, 12-angle encoder, 13-frequency conversion motor, 14-railway signal light two, 15-hot iron ladle locomotive two, 16-data video delivery display, 17-hot iron level radar one, 18-video monitoring one, 19-video monitoring two, 20-video monitoring three, 21-hot iron level radar two, 22-furnace front control module, 23-communication link, 24-cloud computer room, 25-wireless communication transmitting device, 26-wireless communication receiving and processing device, 27-intermediate weighing platform, 28-railway transportation metering control module. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example

[0031] like Figure 1-2 As shown, a blast furnace front molten iron transportation intelligent control device based on cloud-edge collaboration includes a blast furnace front plant 3, two rails 2, a molten iron ladle locomotive 1, a molten iron ladle locomotive 2 15, a chute swing spout 10, a mechanical transmission shaft 11 and a variable frequency motor 13. The two rails 2 are arranged in parallel, one end of which is located in the blast furnace front plant 3, and the other end extends to the outside of the blast furnace front plant 3. The molten iron ladle locomotive 1 and the molten iron ladle locomotive 2 15 are respectively arranged on the two rails 2.

[0032] The chute swing spout 10 is rotatably mounted on a support frame in the blast furnace front building 3 via a mechanical transmission shaft 11 and is located above the two rails 2. The mechanical transmission shaft 11 is connected to a frequency conversion motor 13, which is fixedly mounted on the support frame. An angle encoder 12 is provided on the mechanical transmission shaft 11.

[0033] Both rails 2 are provided with a locomotive sensor group 4 and a track scale 5. The locomotive sensor group 4 is located outside the door of the blast furnace front building 3, and the track scale 5 is located inside the blast furnace front building 3. The track scale 5 is provided with a weighing sensor group 6, and is provided with a front wheel mark 8 and a rear wheel mark 7 corresponding to the front and rear wheels of the molten iron ladle locomotive 1 or the front and rear wheels of the molten iron ladle locomotive 2 15, and a weighing point alignment area is formed between the front wheel mark 8 and the rear wheel mark 7. When the molten iron ladle locomotive 1 and the molten iron ladle locomotive 2 15 receive the molten iron from the blast furnace, they need to be aligned to the weighing point alignment area on the two rails 2.

[0034] The blast furnace front building 3 is equipped with video surveillance 18, video surveillance 2 19, video surveillance 3 20, molten iron level radar 17 and molten iron level radar 2 21. The video surveillance 18 and video surveillance 2 19 are used to monitor the movement and status of the molten iron ladle locomotive 1 and the molten iron ladle locomotive 2 15, the video surveillance 3 20 is used to monitor the movement and status of the chute swing spout 10, and the molten iron level radar 17 and molten iron level radar 21 are used to monitor the molten iron level in the molten iron ladle locomotive 1 and the molten iron ladle locomotive 2 15. The molten iron level radar 17 and the molten iron level radar 21 are respectively located directly above the two weighing point alignment areas of the two rails 2.

[0035] In a specific embodiment, the video monitoring device 18 can be installed in front of the ladle locomotive 1, and arranged opposite to the ladle locomotive 1 to monitor the distance of the locomotive moving forward and backward. The video monitoring device 19 can be installed at the level of the rear wheel mark 7 and the front wheel mark 8 to monitor the alignment of the marks. The monitoring of the ladle locomotive 15 is similar. The specific number of video monitoring devices can be determined according to the actual situation. Because the distance between the two rails 2 at the bottom of the same iron mouth of the blast furnace is not far, and there is a chute swinging spout 10 in the middle, it is easy for molten iron to splash below, so the video monitoring device 18 and the video monitoring device 2 can only be installed on the outside of the locomotive.

[0036] The present invention monitors the movement (forward and backward) and state (mark alignment) of the molten iron ladle locomotive 1 through video monitoring 1 18 and video monitoring 2 19, and monitors the movement (left and right swing) and state (molten iron outflow state) of the chute swing spout 10 through video monitoring 3 20.

[0037] The blast furnace front plant 3 is also provided with a data video display 16, a furnace front control module 22, a wireless communication transmitter 25 and a railway transportation metering control module 28. The locomotive sensor group 4, the weighing sensor group 6, the frequency conversion motor 13, the angle encoder 12, the molten iron level radar 17, the molten iron level radar 21, the video monitoring 1 18, the video monitoring 2 19, the video monitoring 3 20, the data video display 16, the wireless communication transmitter 25 and the railway transportation metering control module 28 are all connected to the furnace front control module 22. The furnace front control module 22 is connected to the cloud machine room 24 through the communication link 23.

[0038] The furnace front control module 22 collects and transmits the data collected by the locomotive sensor group 4, the weighing sensor group 6, the angle encoder 12, the molten iron level radar 17, the video monitoring 1 18, the video monitoring 2 19, the video monitoring 3 20, and the molten iron level radar 2 21 to the cloud computer room 24 to integrate the L2 data acquisition system, and establishes a cloud-edge data collaborative interaction system to coordinate the L2 data resources of each segment.

[0039] Among them, the furnace control module 22 collects the video switch quantity information and position data quantity information of the video monitoring 1 18 and the video monitoring 2 19 through the conversion protocol, and displays the data on the data video display 16. The video monitoring 1 18, the video monitoring 2 19 and the video monitoring 3 20 are all connected to the data video display 16 for real-time display of the operation screens of the molten iron ladle locomotive 1 1, the molten iron ladle locomotive 2 15 and the chute swing spout 10.

[0040] The molten iron ladle locomotive 1 and the molten iron ladle locomotive 2 15 are both provided with a wireless communication receiving and processing device 26, and the wireless communication transmitting device 25 is in communication connection with the wireless communication receiving and processing device 26. The cloud-edge data collaborative interaction system transmits information to the wireless communication transmitting device 25 through the furnace-front control module 22, and sends instructions to the wireless communication receiving and processing device 26 through the wireless communication transmitting device 25, to control the molten iron ladle locomotive 1 and the molten iron ladle locomotive 2 15 to complete specified actions, such as forward, backward, heat preservation opening, heat preservation cover closing, driving speed adjustment, etc. The cloud-edge data collaborative interaction system transmits information to the variable frequency motor 13 through the furnace-front control module 22, and controls the variable frequency motor 13 to drive the chute swing mouth 10 to complete specified actions, such as positive swing, negative swing, etc.

[0041] An intermediate weighing platform 27 is also provided on the rail 2. The locomotive sensor group 4 is located between the intermediate weighing platform 27 and the track scale 5. The intermediate weighing platform 27 is connected to the railway measurement control module 28. The railway measurement control module 28 collects and transmits the data collected by the intermediate weighing platform 27 to the cloud computer room 24 integrated L2 data acquisition system.

[0042] The intermediate weighing platform 27 is used as a standard reference for all weighing platforms. When comparing the results, it is helpful to arrange inspection and maintenance of any weighing platform. It can also be used to check the weight reference value of the tank car for all weighing platforms, as a test of whether the tank weight on the locomotive is accurate on other weighing platforms. The weighing function of the weighing sensor group 6: It can only weigh the weight of the molten iron produced by the blast furnace. When the tank car enters the fixed area, it is found that it does not match the standard value of the intermediate weighing platform. The blast furnace monitoring personnel will promptly notify the inspection and processing.

[0043] The middle weighing platform belongs to all weighing platforms and is the only one.

[0044] Outside the door of the blast furnace front plant 3, two railroad signal lights 9 and 14 are respectively provided corresponding to the two railroad tracks 2, and both the railway signal lights 9 and 14 are connected to the furnace front control module 22. When the furnace front control module 22 is set to give a signal J1, the railway signal lights 9 and 14 are both red lights, and when the signal J2 is given, the railway signal lights 9 and 14 are both green lights. The red light does not allow driving, and the green light drives.

[0045] The railway signal lights indicate whether the railway is currently in production and transportation status. The multiple railways in front of the furnace correspond to different blast furnace iron outlets. When the light is red, it indicates that the railway line is undergoing fault maintenance or there are tank cars, and external locomotives are not allowed to enter.

[0046] The control process of the first hot metal ladle locomotive 1 is as follows: When the first hot metal ladle locomotive 1 performs the hot metal transportation task, the front-of-furnace control module 22 sends a forward instruction to the first hot metal ladle locomotive 1. The first hot metal ladle locomotive 1 performs a forward action, and the given signal J2 is transmitted to the first railway signal lamp 9, and the first railway signal lamp 9 lights up green. When the first hot metal ladle locomotive 1 passes through the locomotive inductor group 4, the locomotive inductor group 4 transmits the in-plant induction signal B1 to the front-of-furnace control module 22. At this time, the front-of-furnace control module 22 sends an instruction to open the thermal insulation cover to the first hot metal ladle locomotive 1, and the first hot metal ladle locomotive 1 automatically opens the thermal insulation cover and continues to move forward. After the first hot metal ladle locomotive 1 enters the blast furnace front-of-furnace workshop 3, it enters the weighing point alignment area on the rail scale 5 and automatically aligns under the monitoring of the first video monitor 18 and the second video monitor 19. After the automatic alignment is completed, the front-of-furnace control module 22 controls the variable-frequency motor 13 to act, driving the mechanical transmission shaft 11 to turn the chute nozzle 10 to align with the hot metal ladle on the first hot metal ladle locomotive 1 and perform the hot metal transportation operation. When the hot metal is full, the front-of-furnace control module 22 controls the variable-frequency motor 13 to act, driving the mechanical transmission shaft 11 to turn the chute nozzle 10 to complete the hot metal transportation operation; then, the front-of-furnace control module 22 sends a departure instruction to the first hot metal ladle locomotive 1. The first hot metal ladle locomotive 1 automatically closes the thermal insulation cover and then drives out of the blast furnace front-of-furnace workshop 3. When passing through the locomotive inductor group 4, the locomotive inductor group 4 transmits the out-plant induction signal B2 to the front-of-furnace control module 22, and the front-of-furnace control module 22 transmits this signal to the cloud-edge data collaborative interaction system. The control process of the second hot metal ladle locomotive 15 is the same as that of the first hot metal ladle locomotive 1.

[0047] Set the action speed of the first hot metal ladle locomotive 1 to be controllable at A, and the traveling speed can be accurate to mm / s. Set the position of the front wheel mark 8 as G1 and the position of the rear wheel mark 7 as G2. The straight-line distance between G1 and G2 is G3. When the first hot metal ladle locomotive 1 travels within the range of G3, the adjusted speed is set to H, and H includes the fine-tuning amounts for forward and backward. The front-of-furnace control module 22 controls the first hot metal ladle locomotive 1 to complete automatic alignment within the range of G3 according to the data collected by the first video monitor 18 and the second video monitor 19.

[0048] Set the weighing signal feedback detected by the weighing sensor group 6 as the net weight C, the total weight as D, and the detected change amount of the received hot metal per minute as (C n -C n-1 ) = E (E1, E2,..., En) tons, (D n -D n-1 ) = F (F1, F2,..., Fn) tons, and the data is communicated to the front-of-furnace control module 22 for monitoring. When the net weight C < M1 and the total weight D < M2, it is an asymmetric weighing position, regarded as a tankless car, and counted into the tankless alarm prompt condition. The net weight high alarm is M3, and the total weight high alarm is M4. This is the detection and alarm when the locomotive transports an empty tank during production on this railway line:

[0049] 1. The net weight high alarm is M3: The blast furnace produces molten iron according to the production requirements of the next process. The weight requirements for the production and shipment of molten iron in each molten iron tank are different. At this time, the net weight alarm value of the molten iron tank on the scale needs to be set. When the net weight high alarm appears, it means that the tank has met the production requirements of the next process.

[0050] 2. Total high weight alarm is M4: weighing sensor group 6 is installed on weighing platform A and weighing platform B on the railway line. The total weight of weighing platform A and weighing platform B is the total amount of iron output from the taphole at present. When total high weight alarm is triggered, the molten iron tank on the locomotive is considered to be full and no more molten iron can be loaded. The nozzle needs to be turned upside down to the molten iron tank on another railway line.

[0051] After the molten iron tank enters the railway line, it is marked and loaded with molten iron, the molten iron level is set to Q, and the molten iron level Q value is monitored. The low alarm is Q1, the green light on the tank is Q2, the abnormal high alarm is Q3, and the high alarm is Q4.

[0052] 1. Low alarm is Q1: This alarm means that the radar level gauge fails to detect the molten iron tank;

[0053] 2. The green light of the alignment tank is Q2: After the tank alignment is completed, the 0 liquid level is displayed as the normal state, which is recorded as the green light state liquid level Q2;

[0054] 3. Abnormally high alarm is Q3: After the tank position alignment is completed, the liquid level is displayed at this time, indicating that the molten iron tank at this time is transferred from another railway line and the alarm can be eliminated or the slag inside the molten iron tank needs to be pulled out for maintenance, which is recorded as an abnormally high alarm;

[0055] 4. High alarm is Q4: The production process will set a critical point for the loading capacity of each molten iron tank. When the critical value is reached, it is a high alarm. It is necessary to immediately control the swing nozzle to position or stop the blast furnace from continuing to discharge molten iron.

[0056] When the weighing signal net weight C≥M1 value, gross weight D≥M2, Q3>Q≥Q2, it means that the tanks of the double rails 2 are aligned and the molten iron conveying operation can be performed. When Q≥Q4 or C≥M3, D≥M4, the molten iron is considered full and the molten iron conveying operation is completed. During the molten iron conveying operation, the furnace control module 22 collects information for processing and exchanges data with the railway transportation metering module 28.

[0057] The angle encoder 12 is used to feedback the swing angle of the chute swing spout 10. The positive deflection corresponds to the molten iron ladle locomotive 1, and the angle is set to N1. The negative deflection corresponds to the molten iron ladle locomotive 15, and the angle is set to N2. The positive deflection alarm angle is set to N11, and the negative deflection alarm angle is set to N22. When the molten iron in the molten iron ladle locomotive 1 or the molten iron ladle locomotive 15 is full, there is molten iron on the chute swing spout 10. The front control module 22 outputs the swing command to the variable frequency motor 13 according to the feedback value of the angle encoder 12, the angle alarm stop command, the weighing change of the molten iron ladle locomotive 1 and the molten iron ladle locomotive 15, and the feedback of the video monitoring 18. The variable frequency motor 13 drives the chute swing spout 10 to automatically and safely align.

[0058] The present invention utilizes cloud-edge combined technology, coordinates various types of data transmission, and builds a cloud-edge data collaborative interaction system to coordinate various types of data resources, allocate resources to give effective control to each segment, collect video signals, digital weighing signals, monitor the forward operation of the molten iron ladle locomotive, automatically align the weighing point, and reasonably adjust the direction of the swinging mouth to achieve intelligent adjustment operation and information sharing. The present invention realizes the automatic alignment of the blast furnace molten iron ladle with high accuracy, and personnel do not need to operate on site, which is safe and reliable; it realizes automatic control of the swinging chute and the swinging mouth, reduces manpower and material resources, and automatically monitors to avoid accidental injuries caused by explosions caused by water accumulation in the molten iron ladle; the degree of intelligence is improved, and data collaboration greatly improves the turnover efficiency of the molten iron ladle.

[0059] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A blast furnace molten iron transportation intelligent control device based on cloud-edge collaboration, comprising a blast furnace front building (3), two rails (2), a molten iron ladle locomotive (1), a molten iron ladle locomotive (15), a chute swing mouth (10), a mechanical transmission shaft (11) and a variable frequency motor (13); the two rails (2) are arranged in parallel, one end of which is located in the blast furnace front building (3), and the other end extends to the outside of the blast furnace front building (3), the molten iron ladle locomotive (1) and the molten iron ladle locomotive (15) are respectively arranged on the two rails (2); the chute swing mouth (10) is rotatably mounted on a support frame in the blast furnace front building (3) through a mechanical transmission shaft (11), and is located above the two rails (2), the mechanical transmission shaft (11) is connected to the variable frequency motor (13), the variable frequency motor (13) is fixedly mounted on the support frame, and an angle encoder (12) is arranged on the mechanical transmission shaft (11), characterized in that: A locomotive sensor group (4) and a track scale (5) are provided on both rails (2); the locomotive sensor group (4) is located outside the door of the blast furnace front building (3), and the track scale (5) is located inside the blast furnace front building (3); the track scale (5) is provided with a weighing sensor group (6), and is provided with front wheel marks (8) and rear wheel marks (7) corresponding to the front and rear wheels of the molten iron ladle locomotive (1) or the front and rear wheels of the molten iron ladle locomotive (15), and a weighing point alignment area is formed between the front wheel mark (8) and the rear wheel mark (7); The blast furnace front building (3) is provided with a video monitoring device 1 (18), a video monitoring device 2 (19), a video monitoring device 3 (20), a molten iron level radar 1 (17) and a molten iron level radar 2 (21). The video monitoring device 1 (18) and the video monitoring device 2 (19) are used to monitor the movement and status of the molten iron ladle locomotive 1 (1) and the molten iron ladle locomotive 2 (15). The video monitoring device 3 (20) is used to monitor the movement and status of the chute swing spout (10). The molten iron level radar 1 (17) and the molten iron level radar 2 (21) are used to monitor the molten iron levels in the molten iron ladle locomotive 1 (1) and the molten iron ladle locomotive 2 (15). The molten iron level radar 1 (17) and the molten iron level radar 2 (21) are respectively located directly above two weighing point alignment areas of the two rails (2). The blast furnace front plant (3) is also provided with a data video display (16), a furnace front control module (22), a wireless communication transmitter (25) and a railway transport metering control module (28); the locomotive sensor group (4), the weighing sensor group (6), the variable frequency motor (13), the angle encoder (12), the molten iron level radar 1 (17), the molten iron level radar 2 (21), the video monitoring 1 (18), the video monitoring 2 (19), the video monitoring 3 (20), the data video display (16), the wireless communication transmitter (25) and the railway transport metering control module (28) are all connected to the furnace front control module (22); the furnace front control module (22) is connected to the cloud machine room (24) via a communication link (23); The furnace front control module (22) collects and transmits the data collected by the locomotive sensor group (4), the weighing sensor group (6), the angle encoder (12), the molten iron level radar 1 (17), the video monitoring 1 (18), the video monitoring 2 (19), the video monitoring 3 (20), and the molten iron level radar 2 (21) to the cloud computer room (24) to integrate the L2 data acquisition system, and establishes a cloud-edge data collaborative interaction system to coordinate the L2 data resources of each segment; The molten iron ladle locomotive one (1) and the molten iron ladle locomotive two (15) are both provided with a wireless communication receiving and processing device (26), and the wireless communication transmitting device (25) is communicatively connected with the wireless communication receiving and processing device (26); the cloud-edge data collaborative interaction system transmits information to the wireless communication transmitting device (25) through the furnace front control module (22), and sends instructions to the wireless communication receiving and processing device (26) through the wireless communication transmitting device (25), so as to control the molten iron ladle locomotive one (1) and the molten iron ladle locomotive two (15) to complete the specified action; the cloud-edge data collaborative interaction system transmits information to the variable frequency motor (13) through the furnace front control module (22), so as to control the variable frequency motor (13) to drive the chute swinging spout (10) to complete the specified action.

2. According to claim 1, a blast furnace front molten iron transportation intelligent control device based on cloud-edge collaboration is characterized in that: An intermediate weighing platform (27) is also provided on the rail (2), the locomotive sensor group (4) is located between the intermediate weighing platform (27) and the track scale (5), the intermediate weighing platform (27) is connected to a railway transport metering control module (28), and the railway transport metering control module (28) collects and transmits the data collected by the intermediate weighing platform (27) to the cloud computer room (24) integrated L2 data acquisition system.

3. According to claim 2, a blast furnace front molten iron transportation intelligent control device based on cloud-edge collaboration is characterized in that: A railway signal light 1 (9) and a railway signal light 2 (14) are respectively arranged outside the door of the blast furnace front plant (3) corresponding to the two rails (2), and the railway signal light 1 (9) and the railway signal light 2 (14) are both connected to the furnace front control module (22).

4. According to claim 3, a blast furnace front molten iron transportation intelligent control device based on cloud-edge collaboration is characterized in that: The control process of the molten iron ladle locomotive (1) is as follows: when the molten iron ladle locomotive (1) performs the molten iron transportation task, the furnace front control module (22) sends a forward command to the molten iron ladle locomotive (1), and the molten iron ladle locomotive (1) performs a forward movement. When the molten iron ladle locomotive (1) passes the locomotive sensor group (4), the locomotive sensor group (4) transmits a factory building sensing signal B1 to the furnace front control module (22). At this time, the furnace front control module (22) sends an instruction to open the insulation cover to the molten iron ladle locomotive (1), and the molten iron ladle locomotive (1) automatically opens the insulation cover and continues to move forward; when the molten iron ladle locomotive (1) enters the blast furnace front factory building (3), it enters the weighing point alignment area on the track scale (5) and automatically aligns under the monitoring of the video monitoring one (18) and the video monitoring two (19); after the automatic alignment is completed, the furnace front control module (22) controls The variable frequency motor (13) is controlled to operate, driving the mechanical transmission shaft (11) to turn the chute spout (10) to align the molten iron ladle on the molten iron ladle locomotive (1) to perform the molten iron conveying operation; when the molten iron is full, the furnace front control module (22) controls the variable frequency motor (13) to operate, driving the mechanical transmission shaft (11) to turn the chute spout (10) to complete the molten iron conveying operation; thereafter, the furnace front control module (22) sends a departure instruction to the molten iron ladle locomotive (1), and the molten iron ladle locomotive (1) automatically closes the insulation cover and drives out of the blast furnace front plant (3). When passing the locomotive sensor group (4), the locomotive sensor group (4) transmits a plant sensing signal B2 to the furnace front control module (22), and the furnace front control module (22) transmits the signal to the cloud edge data collaborative interaction system; the control process of the molten iron ladle locomotive (15) is the same as that of the molten iron ladle locomotive (1).

5. According to claim 4, a blast furnace front molten iron transportation intelligent control device based on cloud-edge collaboration is characterized in that: The furnace control module (22) collects the video switch quantity information and position data quantity information of the video monitoring one (18) and the video monitoring two (19) through the conversion protocol, and displays the data on the data video projection display (16); the video monitoring one (18), the video monitoring two (19) and the video monitoring three (20) are all connected to the data video projection display (16) for communication, and are used to display the operation pictures of the molten iron ladle locomotive one (1), the molten iron ladle locomotive two (15) and the chute swing spout (10) in real time.

6. According to claim 5, a blast furnace front molten iron transportation intelligent control device based on cloud-edge collaboration is characterized in that: The position of the front wheel mark (8) is set to G1, the position of the rear wheel mark (7) is set to G2, the straight-line distance between G1 and G2 is G3, the molten iron ladle locomotive (1) travels within the range of G3, the adjustment speed is set to H, and H is a forward and backward fine-tuning amount; the furnace front control module (22) controls the molten iron ladle locomotive (1) to complete automatic alignment within the range of G3 based on the data collected by the video monitoring (18) and the video monitoring (19).

7. The intelligent control device for molten iron transportation in front of a blast furnace based on cloud-edge collaboration according to claim 6 is characterized by: The weighing signal feedback detected by the weighing sensor group (6) is set to be net weight C and gross weight D. When the net weight C is less than M1 and the gross weight D is less than M2, it is an asymmetric weight position, which is regarded as no tank car and is included in the no tank alarm prompt condition; the net weight high alarm is M3 and the gross weight high alarm is M4; the molten iron level is set to Q, the low alarm is Q1, the green light for the aligned tank is Q2, the abnormal high alarm is Q3, and the high alarm is Q4; when the weighing signal net weight C ≥ M1 value, the gross weight D ≥ M2, Q3 > Q ≥ Q2, it means that the tanks of the double rails (2) are aligned and the molten iron conveying operation can be performed; when Q ≥ Q4 or C ≥ M3, D ≥ M4, it is regarded as the molten iron is full and the molten iron conveying operation is completed.

8. The intelligent control device for molten iron transportation in front of a blast furnace based on cloud-edge collaboration according to claim 7 is characterized in that: The angle encoder (12) is used to feedback the swing angle of the chute swing spout (10), the positive deflection corresponds to the molten iron ladle locomotive one (1), the set angle is N1, the negative deflection corresponds to the molten iron ladle locomotive two (15), the set angle is N2; the positive deflection alarm angle is set to N11, and the negative deflection alarm angle is set to N22; when the molten iron in the molten iron ladle locomotive one (1) or the molten iron ladle locomotive two (15) is full, there is molten iron on the chute swing spout (10), and the furnace front control module (22) outputs a swing command to the frequency conversion motor (13) based on the feedback value of the angle encoder (12), the angle alarm stop command, the weighing change of the molten iron ladle locomotive one (1) and the molten iron ladle locomotive two (15), and the feedback of the video monitoring one (18), and the frequency conversion motor (13) drives the chute swing spout (10) to automatically and safely align.

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