Automatic assembly tapping control method and system for heating furnace

Abstract

The invention relates to the field of rolling production, in particular to an automatic assembly tapping control method and system for a heating furnace. The invention discloses an automatic assembly tapping control method for a heating furnace, which comprises the following steps of: sending a tapping request signal through a rolling mill, receiving the signal by the heating furnace, determining a tapping sequence according to an assembly sequence and issuing a tapping instruction, and starting tapping by a tapping machine according to the tapping instruction and the tapping sequence. The advancing stroke of the tapping machine in the column is calculated according to the width of the plate blank in the column to complete the automatic assembly tapping operation of the heating furnace; the invention further discloses an automatic assembly tapping control system for the heating furnace, the system specifically comprises a rolling mill signal module, a heating furnace signal module, a tapping machine signal module and a data interaction module, automatic assembly tapping of the heating furnace is achieved through the system, the production efficiency is improved, and production gas consumption and power consumption are reduced.

Description

Technical Field

[0001] The invention relates to the field of rolling production, and in particular to a method and system for automatically controlling billet assembly and steel tapping in a heating furnace. Background Art

[0002] In the hot-rolled strip production line, the heating furnace is the precursor to the rolling of the rolling mill. Its task is to heat the steel billet to the temperature required by the process according to the rolling rhythm of the rolling mill, so as to achieve the optimal match between the output and quality of the heating furnace and the output and capacity of the rolling mill. Therefore, the steel-making rhythm of the heating furnace needs to be able to meet the rolling rhythm and rolling capacity requirements of the rolling mill to ensure the production line output and product quality.

[0003] In the prior art, the steel tapping of the heating furnace and the steel demanding of the rolling mill are communicated through an intercom. The rolling mill operator notifies the steel tapper of the heating furnace through the intercom to tap the steel, and the steel tapper clicks on the secondary screen to tap the steel or performs semi-automatic tapping on the primary screen. Communication through the intercom is difficult, and the manual steel tapping method will also cause a delay in steel tapping, affecting production efficiency.

[0004] Therefore, it is of great significance to develop a new automatic billet assembly and steel tapping control method and system for a heating furnace. Summary of the invention

[0005] Purpose of the invention: The technical problem to be solved by the present invention is to provide a control method and system for assembling billets according to a production plan, ordering steel by a rolling mill operator according to the rolling rhythm, and automatically tapping steel from a heating furnace in response to the deficiencies in the prior art.

[0006] In order to solve the above technical problems, the present invention discloses a heating furnace automatic billet assembly and steel tapping control method, which specifically comprises the following steps:

[0007] S1. The rolling mill determines whether the conditions of the heating furnace meet the requirements for steel tapping;

[0008] S2. The rolling mill sends a signal to request the heating furnace to meet the conditions for steel production;

[0009] S3. The heating furnace receives the steel tapping request signal and determines the steel tapping order according to the billet assembly order and issues a steel tapping instruction;

[0010] S4. The steel-discharging machine starts discharging steel according to the steel-discharging instruction and the steel-discharging sequence, and calculates the forward stroke of the steel-discharging machine of the row according to the width of the slab of the row.

[0011] Among them, in S1, the specific conditions for the heating furnace to meet the steel-out conditions are: there is a signal from the laser detection in the heating furnace, the stepping beam is in place and the overflow is greater than 10 mm.

[0012] Among them, in S2, the billet assembly order is obtained according to the billet assembly logic in the heating furnace, and the billet assembly logic is specifically: the heating furnace system obtains the slab steel type from the MES system, and automatically performs billet assembly numbering according to the furnace loading order and steel type characteristics.

[0013] Among them, in said S4, the calculation method of the forward stroke of the steel tapping machine is specifically as follows:

[0014] Forward stroke of the steel-discharging machine = distance between the steel-discharging machine head and the optical inspection + slab width ÷ 2 - overflow amount.

[0015] The present invention also provides a heating furnace automatic assembling and steel-discharging control system, the system comprising:

[0016] The rolling mill signal module is used to receive information about whether the heating furnace meets the conditions for steel tapping and to send a signal requesting steel tapping;

[0017] The heating furnace signal module is used to receive the steel tapping signal, issue the steel tapping instruction and issue the reassembly instruction;

[0018] Steel-making machine signal module, used to receive steel-making machine instructions and calculate the forward stroke of the steel-making machine;

[0019] The data interaction module is used to record the working status of the rolling mill signal module, the rolling mill signal module and the steel tapping machine signal module and provide a reminder function.

[0020] Wherein, the heating furnace signal module includes a heating furnace primary module and a heating furnace secondary module; wherein,

[0021] The first-level module of the heating furnace is used to control and issue steel tapping instructions;

[0022] The secondary module of the heating furnace is used to receive the signal requesting steel tapping sent by the rolling mill signal module, and send instructions to the primary module of the heating furnace in combination with the billet assembly sequence.

[0023] Among them, the reminder function of the data interaction module is used to reflect the real-time steel-discharging status of the heating furnace.

[0024] The present invention also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps of the automatic billet assembly and steel tapping control method of the heating furnace of the present invention are implemented.

[0025] The present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the automatic billet assembly and steel tapping control method of the heating furnace of the present invention when executing the program.

[0026] Beneficial effect: The present invention, through detailed understanding of the production process and with the original intention of improving efficiency and reducing consumption, invents a method and system for automatic assembling and steel-making in a heating furnace, which ensures that the assembling is carried out according to the production plan, the rolling mill operator orders steel according to the rolling rhythm, and the heating furnace automatically taps steel. At the same time, there are voice broadcast reminders, and the production efficiency can be improved, the steel-making time can be increased by 5 seconds, and the gas consumption and electricity consumption can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more clear.

[0028] Figure 1 A function diagram for selecting a steel tapping sequence for the secondary screen in an embodiment of the present invention;

[0029] Figure 2 It is a function diagram for confirming the steel-out sequence on the secondary screen in an embodiment of the present invention;

[0030] Figure 3 This is a flow chart of the control method of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further explained below in conjunction with the accompanying drawings and specific embodiments.

[0032] Embodiment 1:

[0033] The present invention adds a rolling mill steel button in the rolling mill WINCC. When the button border is green, the heating furnace meets the automatic steel tapping conditions. When the border is red, it means that the heating furnace does not meet the automatic steel tapping conditions. The steel tapping conditions are specifically met as follows: there is a signal from the laser detection in the furnace, the stepping beam is in place, and the overflow is greater than 10mm.

[0034] When the rolling mill's "Request Steel" button is displayed in green, the rolling mill operator clicks on it. Then the heating furnace's secondary system receives the "Request Steel" signal and sends instructions to the heating furnace's primary system based on the slab assembly sequence. The heating furnace automatically performs steel-discharging operations. When the rolling mill operator clicks on the "Request Steel" button again, the heating furnace starts to produce the second slab in the group.

[0035] The assembly logic is developed in the back-end of the secondary system of the heating furnace, and the serial assembly function is developed in the front-end screen of the secondary system.

[0036] The secondary screen has the function of selecting the steel tapping sequence, so that the rolling line can automatically tap steel in the corresponding sequence after clicking the steel tapping. Click the button to select the steel tapping sequence, and then select the images in the furnace in turn. The images will change color and display the sequence number next to them, such as Figure 1 shown.

[0037] After the selection is completed, click Confirm to complete the sorting. After confirmation, the steel plate image will return to its original color, the sequence number will be retained, and the slab sequence table on the right will also change accordingly, such as Figure 2 If you make a wrong selection, you can click Cancel Plate Selection to cancel it before confirmation. You can also click Reselect Plate Order to reselect after confirmation.

[0038] Use the speech synthesis software VoiceReader_2013 to synthesize 1, 2, 3, and 4 automatic steel-tapping audio files, copy the 4 voice files to the WINCC system directory of the heating furnace, and then create 4 variables according to the PLC program to trigger the 4 voice prompt files.

[0039] The automatic steel-discharging PLC program of the steel-discharging machine is developed using STEP 7 software. The steel-discharging machine starts the steel-discharging machine according to the steel-discharging sequence and slab width issued by the second level, and calculates the forward stroke of the steel-discharging machine according to the slab width issued by the second level. The specific formula is:

[0040] Forward stroke of the steel-discharging machine = distance between the steel-discharging machine head and the optical inspection + slab width ÷ 2 - overflow amount.

[0041] The main process of tapping machine control is:

[0042] 1. The steel tapping machine operates according to the slab width and current position information calculated by the heating furnace;

[0043] 2. The steel tapping machine moves forward to the bottom of the slab in the furnace;

[0044] 3. After reaching the bottom, the steel tapping machine lifts the slab and fully opens the furnace door;

[0045] 4. After the steel-discharging machine is lifted into place, it starts to move backward;

[0046] 5. After the steel tapping machine moves back to its position, it is ready to drop the slab and trigger visual recognition detection at the same time;

[0047] 6. Check whether the slab falls into the roller table;

[0048] 7. When the slab falls into the roller table, the steel tapping machine continues to descend into place and closes the door at the same time;

[0049] 8. If the steel falls outside the roller table, the steel tapping stops and an alarm is sounded to prompt manual handling;

[0050] 9. Automatic steel tapping is completed.

[0051] Embodiment 2:

[0052] The computer-readable storage medium of this embodiment stores a computer program, which, when executed by a processor, implements the steps of the online classroom concentration identification method with a visual privacy protection function of Example 1.

[0053] The computer-readable storage medium of this embodiment may be an internal storage unit of the terminal, such as a hard disk or memory of the terminal; the computer-readable storage medium of this embodiment may also be an external storage device of the terminal, such as a plug-in hard disk, a smart memory card, a secure digital card, a flash memory card, etc. equipped on the terminal; further, the computer-readable storage medium may also include both an internal storage unit of the terminal and an external storage device.

[0054] The computer-readable storage medium of this embodiment is used to store computer programs and other programs and data required by the terminal. The computer-readable storage medium can also be used to temporarily store data that has been output or is to be output.

[0055] Embodiment 3:

[0056] The computer device of this embodiment includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the steps of the online classroom concentration identification method with visual privacy protection function of Example 1 are implemented.

[0057] In this embodiment, the processor may be a central processing unit, or other general-purpose processors, digital signal processors, application-specific integrated circuits, readily available programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory. For example, the memory may also store information about the device type.

[0058] Those skilled in the art will appreciate that the disclosed content of the embodiments may be provided as methods, systems, or computer program products. Therefore, the present solution may adopt the form of hardware embodiments, software embodiments, or embodiments combining software and hardware. Moreover, the present solution may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program codes.

[0059] The present solution is described with reference to the flowchart and / or block diagram of the method and computer program product according to the embodiment of the present solution. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions; these computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0060] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0061] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0062] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0063] The present invention provides a heating furnace automatic assembling and steel tapping control method and system. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A heating furnace automatic billet assembly and steel tapping control method, characterized in that: The following steps are involved: S1. The rolling mill determines whether the conditions of the heating furnace meet the requirements for steel tapping; S2. The rolling mill sends a signal to request the heating furnace to meet the conditions for steel production; S3. The heating furnace receives the steel tapping request signal and determines the steel tapping order according to the billet assembly order and issues a steel tapping instruction; S4. The steel-discharging machine starts discharging steel according to the steel-discharging instruction and the steel-discharging sequence, and calculates the forward stroke of the steel-discharging machine of the row according to the width of the slab of the row.

2. The control method according to claim 1, characterized in that: In S1, the specific conditions for the heating furnace to meet the steel tapping conditions are: there is a signal from the laser detection in the heating furnace, the walking beam is in place, and the overflow is greater than 10 mm.

3. The control method according to claim 1, characterized in that: In S2, the billet assembly sequence is obtained according to the billet assembly logic in the heating furnace, and the billet assembly logic is specifically: the heating furnace system obtains the slab steel type from the MES system, and automatically performs billet assembly numbering according to the furnace loading sequence and steel type characteristics.

4. The control method according to claim 1, characterized in that: In S4, the calculation method of the forward stroke of the steel tapping machine is specifically as follows: Forward stroke of the steel-discharging machine = distance between the steel-discharging machine head and the optical inspection + slab width ÷ 2 - overflow amount.

5. A heating furnace automatic assembling and steel-making control system, characterized in that: The system comprises: The rolling mill signal module is used to receive information about whether the heating furnace meets the conditions for steel tapping and to send a signal requesting steel tapping; The heating furnace signal module is used to receive the steel tapping signal, issue the steel tapping instruction and issue the reassembly instruction; Steel-making machine signal module, used to receive steel-making machine instructions and calculate the forward stroke of the steel-making machine; The data interaction module is used to record the working status of the rolling mill signal module, the rolling mill signal module and the steel tapping machine signal module and provide a reminder function.

6. The control system according to claim 5, characterized in that: The heating furnace signal module includes a heating furnace primary module and a heating furnace secondary module; wherein, The first-level module of the heating furnace is used to control and issue steel tapping instructions; The secondary module of the heating furnace is used to receive the signal requesting steel tapping sent by the rolling mill signal module, and send instructions to the primary module of the heating furnace in combination with the billet assembly sequence.

7. The control system according to claim 5, characterized in that: The reminder function of the data interaction module is used to reflect the real-time steel tapping status of the heating furnace.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the automatic billet assembly and steel tapping control method of a heating furnace as claimed in any one of claims 1 to 4 are implemented.

9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the automatic billet assembly and steel tapping control method of a heating furnace as claimed in any one of claims 1 to 4 are implemented.

Images