Multi-section square billet continuous casting self-adaptive billet separation method based on stacking target guiding
By adopting the stacking target-oriented control method on the billet continuous casting production line, the operation of the steel fishing machine and the steel pushing machine is coordinated, the problem of inefficient billet output in multi-section production is solved, and accurate stacking and partitioning of billets is achieved , improves the overall efficiency of the production line.
Patent Information
- Application Number
- CN202411155559.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-01-03
AI Technical Summary
The existing billet continuous casting machines have problems with inefficient billet production in multi-section production, especially in the control of the collection bench area of the steel picking machine and the steel pushing machine, making it difficult to achieve efficient forward billet separation.
Using a stacking target-oriented control method, the casting flow blank position monitoring module, billet module and stacking module are set up in the transportation rollers, steel fishing machines and steel pushing machines to monitor and calculate the output of blanks in real time. The billet time and quantity are coordinated with the actions of the steel fishing machine and the steel pushing machine to achieve accurate stacking and separation of billets.
The efficiency of continuous casting of multi-section square billets is improved, ensuring that blanks with different sections can be accurately stacked and separated, reducing the complexity of on-site debugging and control risks, and improving the overall efficiency of the production line.
Smart Images
Figure CN119237688A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of continuous casting of square billets, and in particular relates to a stacking target-oriented self-adaptive billet separation method for continuous casting of multi-section square billets. Background Art
[0002] For billet continuous casting, the existing billet continuous casting machine is only compatible with one or two sections, such as 180 cubic meters and 200 cubic meters. Due to the changing market demand in the downstream of steel production, in order to reduce one-time investment, the billet continuous casting machine needs to be compatible with more and more sections. The efficiency of the billet discharge area of the billet continuous casting directly affects the production capacity of the billet continuous casting machine. The billet discharge area of the billet continuous casting machine includes group rollers with different functions, steel scooping machines, steel pushers and collection stands. To achieve efficient forward discharge in the context of multi-section production is a key factor that needs to be considered comprehensively.
[0003] The existing continuous casting of square billets is subject to the capacity of the billet-discharging crane and the clamping width of the clamp, and the number of stacked billets of different sections varies. When switching between multiple sections, after the flame cutting machine cuts the steel billet, there is no restrictive link in the roller conveyor itself. Whether the billets can be quickly and smoothly separated is mainly restricted in the collection stand area of the steel scooping machine and the steel pusher. The billet scooping cycle of the steel scooping machine is longer than the previous process time, which is bound to cause billet stacking. The control of the steel pusher collection stand for multiple sections is currently achieved by fixed-position photoelectric switches. For different sections and different stacking numbers, on-site debugging requires finding the overlapping area of the stacked billets to adjust the photoelectric switch. The window area left for the photoelectric switch to adjust is very small, and there are certain control risks. Therefore, for multi-section square billet continuous casting machines, it is necessary to seek more reasonable control strategies and methods to achieve efficient billet separation. Summary of the invention
[0004] In view of the above problems, the purpose of the present invention is to provide a method for adaptively dividing multi-section square billet continuous casting based on stacking target guidance. The system controls the rhythm of the steel scooping machine and the steel pusher based on stacking target guidance, thereby achieving efficient billet division.
[0005] The technical solution of the present invention is: a method for adaptively dividing billets in continuous casting of multi-section square billets based on stacking target guidance, comprising the following steps: S1: The strand position monitoring module, the strand separation module and the stacking module are respectively set in the transport roller area, the steel scooping machine area and the steel pusher collection stand area of the billet continuous casting production line; S2: Determine the stacking quantity N and the billet width B according to the designed casting production section, and feed them back to the stacking module and the billet separation module; S3: After the billet head is cut, the strand position monitoring module monitors the current casting speed V of different strands. xi Cutting and cutting of blanks to length L xi, determine the actual billet discharge time T of different casting strands xi , T xi Determine the following formula: (1) T xi After confirmation, it is fed back to the blank separation module; S4: The steel scooping machine scoops the billet. The specific process is: the billet separation module drives the steel scooping machine to scoop the billet according to the stacking quantity N, so that the number of steel scooping times PL=N. The specific operation is that the billet separation module calculates the difference PL-N in real time until the difference is 0, indicating that the billet separation is completed; S5: The pusher collecting stand moves to collect the billets. The specific process is as follows: the pusher collecting stand and the scooping machine exchange the billets once at the billet entry position. The stacking module drives the pusher cylinder to move so that the pusher head pushes the billet by a translation distance of BL+50, where BL is the width of the hook plate of the scooping machine, to make room for the next billet entry position. The above process is repeated. The scooping machine and the pusher collecting stand exchange the billets once at the billet entry position. The stacking module calculates the N-PF difference in real time, where PF is the number of times the scooping machine puts the billets on the pusher collecting stand. Until the difference is 0, the pusher hydraulic cylinder is fully extended to ensure that the pusher head pushes the billet into the next buffer position of the pusher. This billet collection is completed. S6: After the billet collection is completed, the stacking module feeds back to the billet separation module, the steel scooping machine stops scooping the billet, and after the billet at the lower line position of the steel pusher collecting stand is lifted away, the lower line position detection device of the steel pusher collecting stand feeds back the billet-free signal to the stacking module; S7: repeat the above steps S1 to S6 to complete the adaptive splitting of continuous casting billets with different cross-sections.
[0006] In the step S1, the casting strand position monitoring module sets a tracking device on each strand of the billet continuous casting production line. The tracking device is one or more of a camera, a laser distance measurement, an infrared sensor or a microwave distance measurement.
[0007] In step S4, the actual billet discharge time T of different casting strands is xi The billet separation module arranges the steel scooping machine to scoop out the billets with the shortest time first according to the order of time from shortest to longest.
[0008] In step S4, the steel scooping machine scoops the billet by driving the steel scooping mechanism through a motor, an external brake and a reducer, wherein the motor is provided with an encoder, and the motor control mode is closed-loop vector control with an encoder, the walking of the steel scooping machine is positioned by a laser rangefinder, and the walking mechanism motor control mode of the steel scooping machine is open-loop vector control, and the no-load walking motor frequency is ≤75Hz, and the heavy-load walking motor frequency is ≤50Hz.
[0009] In step S5, the distance between the pusher head at the billet entry position and the pusher head at the buffer position of the steel pusher collecting stand is ≥ BL+50+50+max (Nxmax×Bx), where NXmax is the number of stacks under section X, and Bx is the width of the billet under section X.
[0010] In the step S6, the photoelectric switch of the downline position detection device of the steel pusher collecting stand is one of a proximity switch, a travel switch, and a laser ranging.
[0011] A stacking target-oriented adaptive billet separation system for continuous casting of multi-section square billets comprises a strand position monitoring module, a billet separation module and a stacking module, wherein the strand position monitoring module is connected to the billet separation module and the stacking module respectively, and the billet separation module is connected to the stacking module, the strand position monitoring module is used for real-time monitoring of billets of each stream of the square billet continuous casting production line at different roller positions, the stacking module is used for driving a pusher to gather a corresponding number of billets according to the number of stacks, and the billet separation module is used for driving a scooping machine to scoop a corresponding number of billets to a pusher collection stand according to the requirements of the stacking module.
[0012] The technical effect of the present invention is that: the present invention realizes adaptive blanking through collaboration between different modules, the stacking module sends the target quantity, the blanking module realizes the target quantity, and the monitoring module provides time-limited boundary conditions. Both the blanking module and the stacking module realize the counting function, and can accurately achieve the stacking targets of different sections.
[0013] The following is a further description with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The present invention is a schematic structural diagram of a stacking target-oriented multi-section square billet continuous casting adaptive billet separation system according to an embodiment of the present invention.
[0015] Figure 2 It is a schematic diagram of a transport roller table according to an embodiment of the present invention.
[0016] Figure 3 It is a schematic diagram of a steel scooping machine according to an embodiment of the present invention.
[0017] Figure 4 It is a schematic diagram of a steel pusher collecting stand according to an embodiment of the present invention. DETAILED DESCRIPTION Example 1
[0018] like Figure 1~Figure 4 As shown, a stacking target-oriented multi-section billet continuous casting adaptive billet separation method comprises the following steps: S1: The strand position monitoring module, the strand separation module and the stacking module are respectively set in the transport roller area, the steel scooping machine area and the steel pusher collection stand area of the billet continuous casting production line; S2: Determine the stacking quantity N and the billet width B according to the designed casting production section, and feed them back to the stacking module and the billet separation module; S3: After the billet head is cut, the strand position monitoring module monitors the current casting speed V of different strands. xi Cutting and cutting of blanks to length L xi , determine the actual billet discharge time T of different casting strands xi , T xi Determine the following formula: (1) T xi After confirmation, it is fed back to the blank separation module; S4: The steel scooping machine scoops the billet. The specific process is: the billet separation module drives the steel scooping machine to scoop the billet according to the stacking quantity N, so that the number of steel scooping times PL=N. The specific operation is that the billet separation module calculates the difference PL-N in real time until the difference is 0, indicating that the billet separation is completed; S5: The pusher collecting stand moves to collect the billets. The specific process is as follows: the pusher collecting stand and the scooping machine exchange the billets once at the billet entry position. The stacking module drives the pusher cylinder to move so that the pusher head pushes the billet by a translation distance of BL+50, where BL is the width of the hook plate of the scooping machine, to make room for the next billet entry position. The above process is repeated. The scooping machine and the pusher collecting stand exchange the billets once at the billet entry position. The stacking module calculates the N-PF difference in real time, where PF is the number of times the scooping machine puts the billets on the pusher collecting stand. Until the difference is 0, the pusher hydraulic cylinder is fully extended to ensure that the pusher head pushes the billet into the next buffer position of the pusher. This billet collection is completed. S6: After the billet collection is completed, the stacking module feeds back to the billet separation module, the steel scooping machine stops scooping the billet, and after the billet at the lower line position of the steel pusher collecting stand is lifted away, the lower line position detection device of the steel pusher collecting stand feeds back the billet-free signal to the stacking module; S7: repeat the above steps S1 to S6 to complete the adaptive splitting of continuous casting billets with different cross-sections.
[0019] In the step S1, the casting strand position monitoring module sets a tracking device on each strand of the billet continuous casting production line. The tracking device is one or more of a camera, a laser distance measurement, an infrared sensor or a microwave distance measurement.
[0020] In step S4, the actual billet discharge time T of different casting strands is xi The billet separation module arranges the steel scooping machine to scoop out the billets with the shortest time first according to the order of time from shortest to longest.
[0021] In step S4, the steel scooping machine scoops the billet by driving the steel scooping mechanism through a motor, an external brake and a reducer, wherein the motor is provided with an encoder, and the motor control mode is closed-loop vector control with an encoder, the walking of the steel scooping machine is positioned by a laser rangefinder, and the walking mechanism motor control mode of the steel scooping machine is open-loop vector control, and the no-load walking motor frequency is ≤75Hz, and the heavy-load walking motor frequency is ≤50Hz.
[0022] In step S5, the distance between the pusher head at the billet entry position and the pusher head at the buffer position of the steel pusher collecting stand is ≥ BL+50+50+max (Nxmax×Bx), where N Xmax is the number of stacks under section X, and Bx is the width of the billet under section X.
[0023] In the step S6, the photoelectric switch of the downline position detection device of the steel pusher collecting stand is one of a proximity switch, a travel switch, and a laser ranging.
[0024] A stacking target-oriented adaptive billet separation system for continuous casting of multi-section square billets comprises a strand position monitoring module, a billet separation module and a stacking module, wherein the strand position monitoring module is connected to the billet separation module and the stacking module respectively, and the billet separation module is connected to the stacking module, the strand position monitoring module is used for real-time monitoring of billets of each stream of the square billet continuous casting production line at different roller positions, the stacking module is used for driving a pusher to gather a corresponding number of billets according to the number of stacks, and the billet separation module is used for driving a scooping machine to scoop a corresponding number of billets to a pusher collection stand according to the requirements of the stacking module.
[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.
Claims
1. A stacking target-oriented multi-section billet continuous casting adaptive billet separation method, characterized by: The following steps are involved: S1: The strand position monitoring module, the strand separation module and the stacking module are respectively set in the transport roller area, the steel scooping machine area and the steel pusher collection stand area of the billet continuous casting production line; S2: Determine the stacking quantity N and the billet width B according to the designed casting production section, and feed them back to the stacking module and the billet separation module; S3: After the billet head is cut, the strand position monitoring module monitors the current casting speed V of different strands. xi Cutting and cutting of blanks to length L xi , determine the actual billet discharge time T of different casting strands xi , T xi Determine the following formula: （1） T xi After confirmation, it is fed back to the blank separation module; S4: The steel scooping machine scoops the billet. The specific process is: the billet separation module drives the steel scooping machine to scoop the billet according to the stacking quantity N, so that the number of steel scooping times PL=N. The specific operation is that the billet separation module calculates the difference PL-N in real time until the difference is 0, indicating that the billet separation is completed; S5: The pusher collecting stand moves to collect the billets. The specific process is as follows: the pusher collecting stand and the scooping machine exchange the billets once at the billet entry position. The stacking module drives the pusher cylinder to move so that the pusher head pushes the billet by a translation distance of BL+50, where BL is the width of the hook plate of the scooping machine, to make room for the next billet entry position. The above process is repeated. The scooping machine and the pusher collecting stand exchange the billets once at the billet entry position. The stacking module calculates the N-PF difference in real time, where PF is the number of times the scooping machine puts the billets on the pusher collecting stand. Until the difference is 0, the pusher hydraulic cylinder is fully extended to ensure that the pusher head pushes the billet into the next buffer position of the pusher. This billet collection is completed. S6: After the billet collection is completed, the stacking module feeds back to the billet separation module, the steel scooping machine stops scooping the billet, and after the billet at the lower line position of the steel pusher collecting stand is lifted away, the lower line position detection device of the steel pusher collecting stand feeds back the billet-free signal to the stacking module; S7: repeat the above steps S1 to S6 to complete the adaptive splitting of continuous casting billets with different cross-sections.
2. According to claim 1, a stacking target-oriented multi-section billet continuous casting adaptive billet separation method is characterized by: In the step S1, the casting strand position monitoring module sets a tracking device on each strand of the billet continuous casting production line. The tracking device is one or more of a camera, a laser distance measurement, an infrared sensor or a microwave distance measurement.
3. The stacking target-oriented multi-section billet continuous casting adaptive billet separation method according to claim 1, characterized in that: In step S4, the actual billet discharge time T of different casting strands is xi The billet separation module arranges the steel scooping machine to scoop out the billets with the shortest time first according to the order of time from shortest to longest.
4. The stacking target-oriented multi-section billet continuous casting adaptive billet separation method according to claim 1, characterized in that: In step S4, the steel scooping machine scoops the billet by driving the steel scooping mechanism through a motor, an external brake and a reducer, wherein the motor is provided with an encoder, and the motor control mode is closed-loop vector control with an encoder, the walking of the steel scooping machine is positioned by a laser rangefinder, and the walking mechanism motor control mode of the steel scooping machine is open-loop vector control, and the no-load walking motor frequency is ≤75Hz, and the heavy-load walking motor frequency is ≤50Hz.
5. The stacking target-oriented multi-section billet continuous casting adaptive billet separation method according to claim 1, characterized in that: In step S5, the distance between the pusher head at the billet entry position and the pusher head at the buffer position of the steel pusher collecting stand is ≥ BL+50+50+max (Nxmax×Bx), where N Xmax is the number of stacks under section X, and Bx is the width of the billet under section X.
6. The stacking target-oriented multi-section billet continuous casting adaptive billet separation method according to claim 1, characterized in that: In the step S6, the photoelectric switch of the downline position detection device of the steel pusher collecting stand is one of a proximity switch, a travel switch, and a laser ranging.
7. A stacking target-oriented multi-section billet continuous casting adaptive billet separation system, characterized by: It includes a strand position monitoring module, a billet separation module and a stacking module. The strand position monitoring module is connected to the billet separation module and the stacking module respectively. The billet separation module is connected to the stacking module. The strand position monitoring module is used for real-time monitoring of the billets of each stream of the square billet continuous casting production line at different roller positions. The stacking module is used for driving the pusher to collect the corresponding number of billets according to the stacking quantity. The billet separation module is used for driving the scooping machine to scoop the billets of the corresponding stacking quantity to the pusher collection stand according to the demand of the stacking module.