CN215642268U - Dual-redundancy control device for measuring and calculating billet length of continuous casting machine - Google Patents
Dual-redundancy control device for measuring and calculating billet length of continuous casting machine Download PDFInfo
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- CN215642268U CN215642268U CN202121705972.2U CN202121705972U CN215642268U CN 215642268 U CN215642268 U CN 215642268U CN 202121705972 U CN202121705972 U CN 202121705972U CN 215642268 U CN215642268 U CN 215642268U
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Abstract
The utility model discloses a dual-redundancy control device for measuring and calculating the length of a billet of a continuous casting machine, which comprises an infrared camera, wherein the infrared camera is connected to an infrared sizing controller; the infrared sizing controller is in communication connection with the cutting controller, the cutting controller is connected to the cutting executing mechanism, and the infrared sizing controller further comprises an incremental encoder; the incremental encoder is arranged at the tail part of the straightening machine motor; the incremental encoder sends pulses to a frequency converter, the frequency converter is connected to a length measurement controller, and the length measurement controller is in communication connection with a cutting controller. The dual-redundancy control device for measuring and calculating the length of the billet of the continuous casting machine realizes the redundancy configuration of two sets of fixed-length cutting systems, namely, when one set of system fails, the system can be quickly switched to the other set of system, so that the continuous operation of equipment is realized.
Description
Technical Field
The utility model particularly relates to a dual-redundancy control device for measuring and calculating the length of a billet of a continuous casting machine, and belongs to the technical field of steel continuous casting.
Background
In the steel production process, the continuous casting billet production of a steel making system occupies an important position, the requirements of conditions such as high temperature, fast production rhythm and the like on field equipment are higher, higher requirements are provided for keeping the running stability and continuity of the equipment, the fixed-length cutting of the billet mainly meets the requirements of a steel rolling process for processing a finished product of a steel bar with a corresponding specification, so the finished product rate of the steel bar and the like can be better improved only by higher measuring accuracy of the billet length, in the continuous casting production process, an infrared fixed-length system is mainly applied to realize the cutting function of the corresponding billet length specification, the principle is that a billet head entering a region to be detected is detected by an infrared fixed-length camera so as to send a billet in-place signal to a controller, the controller sends a billet cutting signal to a cutting execution system again to complete the cutting process of the billet, but the high-temperature environment of the continuous casting region easily causes functional faults of the infrared fixed-length system, the whole equipment can not stably operate, the fault shutdown is seriously caused, the operation stability and continuity of the equipment are seriously restricted, and the capacity and benefit of a company are greatly influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a double-redundancy control device for measuring and calculating the length of a billet of a continuous casting machine, which is a double-redundancy control system for realizing infrared sizing of the billet and calculating the length of the billet by depending on the rotation rate of a roller of a withdrawal and straightening machine so as to realize zero fault of billet length cutting.
The double-redundancy control device for measuring and calculating the length of the billet of the continuous casting machine adopts a double-redundancy control method, so that mutual length check is realized under normal conditions, the measuring and calculating precision is ensured, when one measuring and calculating system fails, the one measuring and calculating system is subjected to offline or online maintenance, and the other measuring and calculating system is independently used for measuring and calculating, so that the running stability of equipment is ensured; the existing infrared sizing system still keeps the function of the device, a steel billet cutting detection area of the infrared sizing system is continuously used as a main cutting point signal for cutting a steel billet, when the sizing system detects that a steel billet head reaches a cutting line position, the infrared sizing system sends a signal to a controller, and the controller sends a cutting signal after performing function judgment and drives a cutting system to perform a steel billet cutting function; in addition, an incremental encoder is arranged at the tail part of a motor of the withdrawal and straightening machine, the actual production length of the steel billet is calculated through the transmission ratio of the motor and the diameter of a roller for conveying the steel billet, an accumulation counting function is set in a length measuring controller, namely, the length corresponding to one circle or one angle is multiplied by the number of rotating circles, the length threshold of the steel billet is set, a comparison function is set in the controller, and when the counting value reaches a set value, the controller sends a steel billet cutting signal which is used as an auxiliary cutting signal to realize the standby cutting function of a cutting system; meanwhile, the infrared cutting measurement can be corrected, and the infrared cutting measurement are allowed to be in a set error range; the method comprises the following specific steps:
the device comprises an infrared camera, wherein the infrared camera is connected to an infrared sizing controller; the infrared sizing controller is in communication connection with the cutting controller, the cutting controller is connected to the cutting executing mechanism, and the infrared sizing controller further comprises an incremental encoder; the incremental encoder is arranged at the tail part of the straightening machine motor; the incremental encoder sends pulses to a frequency converter, the frequency converter is connected to a length measurement controller, and the length measurement controller is in communication connection with a cutting controller.
Furthermore, the infrared sizing controller and the length measurement controller are the same PLC, the infrared sizing system and the withdrawal and straightening machine encoder positioning system can be selected and switched on the industrial monitor, when the infrared sizing system breaks down, an operator can carry out standby switching on the HMI, and when the infrared sizing system works normally, the other set of measurement system can be used for verification; the possibility of whole equipment operation paralysis caused by the failure of one set of cutting system can be saved.
Further, the infrared sizing controller is in communication connection with the length measurement controller.
Compared with the prior art, the dual-redundancy control device for measuring and calculating the length of the billet of the continuous casting machine realizes the redundancy configuration of two sets of fixed-length cutting systems, namely when one set of system fails, the system can be quickly switched to the other set of system, and the continuous operation of equipment is realized.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Example 1:
the dual-redundancy control device for measuring and calculating the length of the billet of the continuous casting machine shown in the figure 1 comprises an infrared camera 1, wherein the infrared camera 1 is connected to an infrared sizing controller 2; the infrared sizing controller 2 is in communication connection with a cutting controller 3, the cutting controller 3 is connected to a cutting executing mechanism 4, and the infrared sizing controller further comprises an incremental encoder 5; the incremental encoder 5 is arranged at the tail part of the tension leveler motor 6; the incremental encoder 5 sends pulses to a frequency converter 7, the frequency converter 7 is connected to a length measurement controller 8, and the length measurement controller 8 is in communication connection with the cutting controller 5.
The basic principle of the control method is that double redundancy configuration is realized for two sets of steel billet cutting systems, namely, the infrared scale tracks the length of a steel billet after the steel billet enters a detection area through an infrared camera, when the position of the steel billet head touches a detection line, a steel billet in-place signal can be sent to a controller, and the steel billet is cut off by sending a steel billet cutting signal to a cutting actuator after the signal is processed by the controller.
The incremental encoder at the tail part of the straightening machine motor sends pulses to the frequency converter, the incremental pulse numbers are transmitted to the controller through the frequency converter, the pulse numbers, the motor transmission ratio and the motor driving shaft outer diameter are converted in displacement distance through a programmed counting function in the controller, the required billet length is set in a program, the length can be manually modified after variable connection is directly carried out on an HMI system picture, the controller is programmed and compared in the controller, and when the measured value reaches the set length, the controller sends a cutting signal to the cutting executing mechanism to cut off the billet.
The infrared sizing system and the length measuring system of the withdrawal and straightening unit encoder are provided with a quick switching function on the HMI system, and when one system breaks down, an operator can quickly switch the measuring function of the encoder to application, so that the switching of the Soviet-open redundancy of the two functions is realized.
The infrared sizing controller 2 and the length measurement controller 8 are the same PLC, an infrared sizing system and a withdrawal and straightening machine encoder positioning system can be selected and switched on an industrial monitor, when the infrared sizing system breaks down, an operator can perform standby switching on the HMI, and when the infrared sizing system works normally, the other set of measurement system can be used for verification; the possibility of whole equipment operation paralysis caused by the failure of one set of cutting system can be saved.
In yet another embodiment, as shown in fig. 2, the infrared sizing controller 2 is communicatively coupled to the length measurement controller 8.
The above-described embodiments are merely preferred embodiments of the present invention, and all equivalent changes or modifications of the structures, features and principles described in the claims of the present invention are included in the scope of the present invention.
Claims (3)
1. A dual-redundancy control device for measuring and calculating the length of a billet of a continuous casting machine comprises an infrared camera, wherein the infrared camera is connected to an infrared sizing controller; infrared scale controller communication connection cutting controller, cutting controller inserts cutting actuating mechanism, its characterized in that: the device also comprises an incremental encoder; the incremental encoder is arranged at the tail part of the straightening machine motor; the incremental encoder sends pulses to a frequency converter, the frequency converter is connected to a length measurement controller, and the length measurement controller is in communication connection with a cutting controller.
2. The dual redundancy control device for measuring and calculating the length of the billet of the continuous casting machine according to claim 1, wherein: the infrared sizing controller and the length measurement controller are the same PLC.
3. The dual redundancy control device for measuring and calculating the length of the billet of the continuous casting machine according to claim 1, wherein: the infrared sizing controller is in communication connection with the length measurement controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121705972.2U CN215642268U (en) | 2021-07-26 | 2021-07-26 | Dual-redundancy control device for measuring and calculating billet length of continuous casting machine |
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| CN202121705972.2U CN215642268U (en) | 2021-07-26 | 2021-07-26 | Dual-redundancy control device for measuring and calculating billet length of continuous casting machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114273748A (en) * | 2022-02-16 | 2022-04-05 | 山东钢铁集团永锋临港有限公司 | Billet fixed-length cutting redundancy system for small square billets |
| CN114625055A (en) * | 2022-04-15 | 2022-06-14 | 山东莱钢永锋钢铁有限公司 | Redundancy control method of flame cutting system of continuous casting machine |
| CN115058550A (en) * | 2022-06-17 | 2022-09-16 | 山东莱钢永锋钢铁有限公司 | Control method for measuring material level stock rod at top of blast furnace |
-
2021
- 2021-07-26 CN CN202121705972.2U patent/CN215642268U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114273748A (en) * | 2022-02-16 | 2022-04-05 | 山东钢铁集团永锋临港有限公司 | Billet fixed-length cutting redundancy system for small square billets |
| CN114625055A (en) * | 2022-04-15 | 2022-06-14 | 山东莱钢永锋钢铁有限公司 | Redundancy control method of flame cutting system of continuous casting machine |
| CN114625055B (en) * | 2022-04-15 | 2024-03-12 | 山东莱钢永锋钢铁有限公司 | Redundancy control method of continuous casting machine flame cutting system |
| CN115058550A (en) * | 2022-06-17 | 2022-09-16 | 山东莱钢永锋钢铁有限公司 | Control method for measuring material level stock rod at top of blast furnace |
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