Intelligent blank removing system and method for abnormal blanks in continuous casting square blank process

Abstract

The invention discloses an intelligent blank removing system and method for abnormal blanks in a continuous casting square blank process, and belongs to the technical field of chemical metallurgy. The system comprises a control module in signal connection with a continuous casting machine through a wire, and the control module is in signal connection with a parameter acquisition module, a process requirement rule base, an alarm module, a positioning module and an identification module through a signal transceiver. According to the intelligent blank removing system for the abnormal blanks in the continuous casting square blank process, parameters are collected in real time through the parameter collection module, and according to preset process parameters, when parameter abnormity occurs, the control module controls the alarm module to give an alarm, the alarm module records the parameters, and positioning is conducted through the positioning module; and then the control module controls the flame cutting machine to optimally cut the corresponding abnormal steel billets, normal parts in the abnormal steel billets are reserved to the maximum extent, the marking module marks the abnormal steel billets after cutting, follow-up screening is facilitated, the product quality is improved, and meanwhile cost waste is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of chemical metallurgy, and in particular to an intelligent billet removal system and a billet removal method for abnormal billet in continuous casting process. Background Art

[0002] The continuous casting machine is generally composed of a molten steel carrier, a tundish, a crystallizer and its vibration device, a clamping roller and a cooling water system in the secondary cooling zone, a pulling and straightening machine, a cutting device, an ingot guide device, etc. It is a production equipment used to continuously cast high-temperature molten steel into billets with certain cross-sectional shapes and size specifications. It is a key equipment in modern steel production. The continuous casting machine can be classified in many ways according to the structural shape, the casting section, the number of billet streams, etc. In terms of structural shape, the continuous casting machine is divided into vertical, vertical bending, arc and other types. The continuous casting machine can be divided into slab continuous casting machine, small billet continuous casting machine, large billet continuous casting machine, etc. according to the size and shape of the casting section. The number of billet streams is distinguished according to the number of billets that the continuous casting machine can cast under the same ladle, and is divided into single-stream, double-stream or multi-stream continuous casting machines.

[0003] At present, due to process anomalies such as fluctuations in the liquid level of the crystallizer during the continuous casting process, the billet has quality problems such as excessive inclusions. If the waste cutting of this part of the billet cannot be accurately removed, the quality of the finished product will be seriously affected.

[0004] In the existing processes, some process abnormalities last for a short time, and there is no obvious abnormality on the surface of the blank, which leads to some process abnormalities not being processed in actual production. When judging, manual judgment is usually adopted, which leads to the inaccurate positioning of the abnormal blank, inaccurate cutting or incomplete cutting. Or, due to the lack of optimized cutting, the abnormal blank is placed in the middle of the fixed-length blank or on two fixed-length blanks, resulting in excessive cutting waste. The existence of these situations has caused great trouble to quality control and affected the quality of product production. Summary of the invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention provides a system and method for intelligently removing continuous casting square billets with process abnormalities, which can realize the technical effect of automatically determining process abnormality information and intelligently removing billets with process abnormalities.

[0006] In order to solve the above technical problems and achieve the above technical effects, the present invention is implemented through the following technical solutions: The technical solution of the present invention is: an intelligent billet removal system for continuous casting square billet with abnormal process, comprising a parameter acquisition module, a process requirement rule library, an alarm module, a positioning module, a control module and an identification module; the control module is connected to the continuous casting machine signal through a wire, and the parameter acquisition module, the process requirement rule library, the alarm module, the positioning module and the identification module are all provided with corresponding signal transceivers; the control module is connected to the parameter acquisition module, the process requirement rule library, the alarm module, the positioning module and the identification module signal through a signal transceiver, and the control module can detect the abnormal process of the continuous casting machine according to the positioning module. The cutting is optimized according to the requirements of the billet range and the position of the abnormal billet to be scrapped; the parameter acquisition module is used to collect the parameters of continuous casting speed, crystallizer liquid level fluctuation and crystallizer cooling water temperature; the process requirement rule library is used to stipulate the process according to the requirements of different steel grades; the alarm module is used to give real-time alarm for conditions that exceed the process rules, generate alarm information and record the alarm time; the positioning module can determine the starting position, cutting position and end position of the process abnormality; the identification module is used to determine the abnormal billet identification rules, spray number the abnormal billets or billets containing abnormal billets, and remove the corresponding billets.

[0007] Furthermore, the parameter acquisition module includes a speed sensor capable of detecting the continuous casting speed and an electromagnetic liquid level sensor capable of detecting the fluctuation of the crystallizer liquid level.

[0008] Furthermore, the alarm module includes an alarm recording unit, an alarm unit and an alarm information generating unit; the alarm information generating unit can generate alarm information for conditions exceeding process rules based on information fed back by the control module, the alarm unit can issue an alarm through the alarm information generated by the alarm information generating unit, and the alarm recording unit can record the alarm information generated by the alarm information generating unit.

[0009] Furthermore, the calculation formula for the starting position of the process abnormality in the positioning module is: the distance from the crystallizer liquid surface to the fire cutting machine position + (the first triggering time of the process abnormality alarm - the most recent fire cutting time) * pulling speed; the calculation formula for the end position of the process abnormality is: the starting position of the process abnormality + (the duration of the process abnormality * pulling speed).

[0010] Furthermore, the control module includes a controller and a signal transceiver connected to the continuous casting machine signal.

[0011] Furthermore, the identification module includes a recognition unit, a marking unit and a spraying unit; the recognition unit includes a high-definition camera capable of capturing real-time images of the product, the marking unit records and marks the corresponding abnormal steel billets through the recognition unit, and the spraying unit can spray mark the corresponding abnormal steel billets according to the information marked by the marking unit.

[0012] A method for removing billets of an intelligent billet removal system for abnormal billets in continuous casting process, comprising the following steps: S0, parameter preset, classify different steel grade processes in the process requirement rule library through the control module, and preset the continuous casting speed, crystallizer liquid level fluctuation, crystallizer cooling water temperature and scrap cutting rule parameters according to different steel grade process requirements; S1. Select the process and adopt different process rule parameters according to different steel grade requirements; S2, parameter collection, the parameter collection module collects the parameters of continuous casting speed, crystallizer liquid level fluctuation and crystallizer cooling water temperature in real time; S3, abnormal alarm, when abnormal parameters occur during the production process, the alarm module will sound an alarm; S4, abnormal positioning, according to the alarm time, the positioning module calculates the actual position of the abnormal billet; S5, abnormal waste cutting, the controller module controls the fire cutting machine to add a certain amount of waste cutting margin before and after the abnormal continuous casting billet according to the process requirements of different steel grades; S501, optimizing the material discharging. When cutting the waste material, the control module optimizes and controls the material discharging according to the size of the abnormal blank after cutting; S6. Material marking: the marking machine marks the abnormal ingot or the ingot containing abnormal ingot with a number; S7, removal processing, identifying according to the marking, and removing the abnormal ingot or the ingot containing the abnormal ingot.

[0013] Furthermore, in S3, the parameter acquisition module monitors the production parameters in real time and sends the parameters to the control module for comparison. When the comparison finds that the parameters are different from the preset ones, the alarm module issues an alarm.

[0014] Further, in S5, according to different steel grade presets and different steel grade processes, the scrap cutting margin is preset, and the scrap cutting margin is preset to 0.5m before the start position of the process abnormality and / or 1m after the end position of the process abnormality.

[0015] Further, in S501, it is determined whether a new billet needs to be pushed in according to the size of the abnormal billet after cutting; When the abnormal billet segment is less than or equal to 4 meters, since the abnormal billet segment less than or equal to 4 meters after cutting cannot move on the roller table by itself, it is necessary to push a new billet in later so that its head pushes the abnormal billet to move and discharge; When the abnormal billet section is larger than 4 meters, it can be directly discharged through the roller after cutting, without pushing new billets in to drive the abnormal billet section to move.

[0016] The beneficial technical effect of the present invention is as follows: through the real-time collection of parameters by the parameter collection module, and according to the preset process parameters, when a parameter abnormality occurs, the control module controls the alarm module to issue an alarm while the alarm module records it, and locates it through the positioning module, and then the control module controls the fire cutting machine to optimize the cutting of the corresponding abnormal steel billet, thereby retaining the normal part of the abnormal steel billet to the maximum extent, and marking it by the marking module after cutting, so as to facilitate subsequent screening, improve product quality and reduce cost waste, avoid the situation where some process abnormalities are short in time and there is no obvious abnormality on the surface of the billet, resulting in no processing of the process abnormal part, resulting in a decline in product quality, and the abnormal billet is placed in the middle of the fixed-size billet or on two fixed-size billets due to the lack of optimized cutting, resulting in excessive cutting waste and waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the intelligent billet removal system for abnormal billets in continuous casting process of the present invention; Figure 2 The present invention Figure 1 Schematic diagram of the control module; Figure 3 The present invention Figure 1 A schematic diagram of a unit of the identified module; Figure 4 The present invention Figure 1 Unit diagram of the alarm module; Figure 5 It is a logical schematic diagram of a method for removing billets of an intelligent billet removal system for abnormal billets in a continuous casting process according to the present invention; Figure 6 It is a flow chart of a method for removing billets of an intelligent billet removal system for abnormal billets in continuous casting process according to the present invention. DETAILED DESCRIPTION

[0018] In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples. The following examples are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0019] See attached Figure 1-4As shown, an intelligent billet removal system for abnormal continuous casting process billets includes a parameter acquisition module, a process requirement rule library, an alarm module, a positioning module, a control module and an identification module; the control module is connected to the continuous casting machine signal through a wire, the control module includes a controller connected to the continuous casting machine signal and a controller signal transceiver, and the control module is connected to the parameter acquisition module, the process requirement rule library, the alarm module, the positioning module and the identification module through signals, and the control module can optimize the cutting of the billet range size requirements and the position of the abnormal billet to be cut according to the positioning module.

[0020] The parameter acquisition module is used to collect parameters of continuous casting speed, mold level fluctuation and mold cooling water temperature. The parameter acquisition module includes a speed sensor capable of detecting continuous casting speed and an electromagnetic level sensor capable of detecting mold level fluctuation.

[0021] The process requirement rule base is used to define the process according to the requirements of different steel grades; the alarm module includes an alarm recording unit, an alarm unit and an alarm information generation unit; the alarm information generation unit can generate alarm information for conditions that exceed the process rules based on the information fed back by the control module, the alarm unit can issue an alarm through the alarm information generated by the alarm information generation unit, the alarm recording unit can record the alarm information generated by the alarm information generation unit, and the alarm module is used to issue real-time alarms for conditions that exceed the process rules, generate alarm information and record alarm time.

[0022] The parameter acquisition module, process requirement rule base, alarm module, positioning module and identification module are all provided with corresponding signal transceivers. The controller in the control module is connected with the parameter acquisition module, process requirement rule base, alarm module, positioning module and identification module through the signal transceiver. When the ingot enters the continuous casting machine for heating and melting, the module in the parameter acquisition module can collect the parameters of the continuous casting speed, the crystallizer liquid level fluctuation and the crystallizer cooling water temperature in real time, and transmit them to the controller through the signal transceiver. Then the controller compares the corresponding process parameters recorded in the process requirement rule base. When the comparison result is abnormal, the alarm module generates an alarm message, and records the alarm message while issuing the alarm.

[0023] The positioning module can determine the starting position, cutting position and ending position of the process abnormality. The calculation formula for the starting position of the process abnormality in the positioning module is: the distance from the crystallizer liquid surface to the fire cutting machine position + (the first triggering time of the process abnormality alarm - the most recent fire cutting time) * pulling speed; the calculation formula for the ending position of the process abnormality is: the starting position of the process abnormality + (the duration of the process abnormality * pulling speed); the identification module is used to determine the abnormal billet identification rules, spray number the abnormal ingot or the billet containing the abnormal ingot, and remove the corresponding billet. The identification module includes a recognition unit, a marking unit and a spraying unit; the recognition unit includes a high-definition camera that can capture real-time images of the product. The marking unit records and marks the corresponding abnormal billet through the recognition unit, and the spraying unit can spray mark the corresponding abnormal billet according to the information marked by the marking unit.

[0024] When an alarm is triggered, the positioning module quickly and accurately cuts the abnormal part according to the starting and ending positions of the process abnormality, replacing the traditional manual judgment method to avoid inaccurate or incomplete cutting of abnormal blanks, resulting in over-cutting or under-cutting, affecting product quality and wasting materials. The recognition unit can identify and mark the cut waste materials and record them for easy screening at a later stage.

[0025] See attached Figure 5 As shown, when the ingot enters the continuous casting machine and melts, the control module selects the corresponding process preset according to the steel grade, and controls the continuous casting machine to adjust to the corresponding preset process parameters. During the working process, the parameter acquisition module collects the equipment parameters in the continuous casting machine in real time, and the control module compares them in real time through the process requirement rule library. When the parameters are normal, the material is automatically cut and then screened and put into storage according to the specifications.

[0026] When the parameters are abnormal, an alarm is issued to notify the staff, and the control module calculates and locates the abnormal steel billet according to the positioning module. Then the control module sends a signal to control the fire cutting machine to cut the abnormal steel billet accordingly based on the calculation of the positioning module. Then the marking module marks the abnormal steel billet. During subsequent screening, the marked abnormal steel billet is removed and then classified.

[0027] See attached Figure 6 As shown, a method for removing billets of an intelligent billet removal system for abnormal billets in continuous casting process comprises the following steps: S0, parameter preset, classify different steel grade processes in the process requirement rule library through the control module, and preset the continuous casting speed, crystallizer liquid level fluctuation, crystallizer cooling water temperature and scrap cutting rule parameters according to different steel grade process requirements; S1. Select the process and adopt different process rule parameters according to different steel grade requirements; S2, parameter collection, the parameter collection module collects the parameters of continuous casting speed, crystallizer liquid level fluctuation and crystallizer cooling water temperature in real time; S3, abnormal alarm, when abnormal parameters occur during the production process, the alarm module will sound an alarm, the parameter acquisition module will detect the production parameters in real time, and send the parameters to the control module for comparison. If the comparison finds that the parameters are different from the preset ones, the alarm module will sound an alarm; S4, abnormal positioning, according to the alarm time, the positioning module calculates the actual position of the abnormal billet; S5. Abnormal waste cutting. The controller module controls the fire cutter to add a certain amount of waste cutting margin before and after the abnormal continuous casting billet according to the process requirements of different steel grades. According to different steel grade presets, for example, the rule for steel grade LX72A is set to 0.5m in front and 1m in the back. When the process parameters are abnormal, the positioning module calculates that the starting position of the process abnormality is 32.8m and the ending position of the process abnormality is 34.5m. Then the positioning module locates the waste cutting position to 32.8m~35.5m, and then the control module controls the fire cutter to perform waste cutting, and the waste cutting length is 2.7m. S501, optimizing the discharging. When the waste is cut, the control module optimizes and controls the discharging according to the size of the abnormal billet after cutting. When the abnormal billet segment is less than or equal to 4 meters, the abnormal billet segment less than or equal to 4 meters after cutting cannot move on the roller table by itself. At this time, the billet segment with process abnormality needs to be placed at the head position of the subsequent normal billet, so as to push the abnormal billet to move and discharge. At this time, the abnormal billet comes out together with the normal billet. When the abnormal billet section is larger than 4 meters, it can be cut separately. There is no need to push new billets in to drive the abnormal billet section to move. It can be discharged directly through the roller. At this time, the abnormal billets are discharged separately. S6, material discharge mark. In S501, when the abnormal billet section is less than or equal to 4 meters, the normal billet needs to be pushed out. Therefore, the abnormal billet is discharged together with the normal billet. The marking machine marks the abnormal billet or the billet containing the abnormal billet with a number, which can facilitate subsequent removal and tracking. S7, removal processing, identifying according to the marking, and removing the abnormal ingot or the ingot containing the abnormal ingot.

[0028] The traditional cutting method is usually to cut all the billets to a fixed length. The scrap billet should be cut on the third billet, and the 7.8m before the third billet is a normal billet. The optimized cutting in this scheme has a fixed length of 12.5m and a range of 9m to 12.5m. The optimized cutting is: cut 1 billet of fixed length, 1 billet of 9m, and 1 billet of 11.3m. The scrap billet is placed on the head of the fourth billet of fixed length. Therefore, no matter whether the length of the abnormal billet section is less than or equal to 4 meters, the material can be cut normally. On the one hand, this scheme can optimize the cutting of the abnormal billet section, which is convenient for tracking and subsequent processing. On the other hand, the billet in front of the abnormal billet is calculated and cut to further reduce the waste of normal billets, avoiding the problem of cost waste caused by the traditional cutting method that the normal billet can only be scrapped along with the abnormal billet because it is smaller than the range.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An intelligent billet removal system for abnormal billets in continuous casting process, characterized in that: It includes parameter acquisition module, process requirement rule base, alarm module, positioning module, control module and identification module; The control module is connected to the continuous casting machine signal through a wire, and the parameter acquisition module, the process requirement rule library, the alarm module, the positioning module and the identification module are all provided with corresponding signal transceivers; The control module is connected to the parameter acquisition module, the process requirement rule base, the alarm module, the positioning module and the identification module through a signal transceiver, and the control module can optimize the cutting of the billet range requirements and the position of the abnormal billet to be cut according to the positioning module; The parameter acquisition module is used to collect parameters of continuous casting speed, crystallizer liquid level fluctuation and crystallizer cooling water temperature; the process requirement rule base is used to specify the process according to the requirements of different steel grades; the alarm module is used to give real-time alarm for conditions that exceed the process rules, generate alarm information and record the alarm time; The positioning module can determine the starting position, cutting position and ending position of the process abnormality; the identification module is used to determine the abnormal billet identification rules, spray mark the abnormal billets or billets containing abnormal billets, and reject the corresponding billets.

2. According to claim 1, a system for intelligently removing billets with abnormal continuous casting process, characterized in that: The parameter acquisition module includes a speed sensor capable of detecting the continuous casting speed and an electromagnetic liquid level sensor capable of detecting the fluctuation of the crystallizer liquid level.

3. According to claim 1, the intelligent billet removal system for continuous casting billets with abnormal process is characterized in that: The alarm module includes an alarm recording unit, an alarm unit and an alarm information generating unit; The alarm information generation unit can generate alarm information for conditions exceeding process rules according to information fed back by the control module, the alarm unit can issue an alarm through the alarm information generated by the alarm information generation unit, and the alarm recording unit can record the alarm information generated by the alarm information generation unit.

4. According to claim 1, the intelligent billet removal system for abnormal continuous casting billets is characterized in that: The calculation formula of the process abnormality starting position in the positioning module is: the distance from the crystallizer liquid surface to the flame cutting machine position + (the first triggering time of the process abnormality alarm - the most recent flame cutting cutting time) * pulling speed; The calculation formula for the end position of the process abnormality is: the starting position of the process abnormality + (the duration of the process abnormality * the pulling speed).

5. According to claim 1, the intelligent billet removal system for continuous casting billets with abnormal process is characterized in that: The control module includes a controller and a signal transceiver connected to the continuous casting machine signal.

6. According to claim 1, the intelligent billet removal system for continuous casting billets with abnormal process is characterized in that: The identification module includes an identification unit, a marking unit and a spraying unit; The identification unit includes a high-definition camera capable of capturing images of the product in real time. The marking unit records and marks the corresponding abnormal steel billets through the identification unit. The spraying unit can spray and mark the corresponding abnormal steel billets according to the information marked by the marking unit.

7. A method for removing billets from continuous casting billets according to any one of claims 1 to 6, characterized in that: The following steps are involved: S0, parameter preset, classify different steel grade processes in the process requirement rule library through the control module, and preset the continuous casting speed, crystallizer liquid level fluctuation, crystallizer cooling water temperature and scrap cutting rule parameters according to different steel grade process requirements; S1. Select the process and adopt different process rule parameters according to different steel grade requirements; S2, parameter collection, the parameter collection module collects the parameters of continuous casting speed, crystallizer liquid level fluctuation and crystallizer cooling water temperature in real time; S3, abnormal alarm, when abnormal parameters occur during the production process, the alarm module will sound an alarm; S4, abnormal positioning, according to the alarm time, the positioning module calculates the actual position of the abnormal billet; S5, abnormal waste cutting, the controller module controls the fire cutting machine to add a certain amount of waste cutting margin before and after the abnormal continuous casting billet according to the process requirements of different steel grades; S501, optimizing the material discharging. When cutting the waste material, the control module optimizes and controls the material discharging according to the size of the abnormal blank after cutting; S6. Material marking: the marking machine marks the abnormal ingot or the ingot containing abnormal ingot with a number; S7, removal processing, identifying according to the marking, and removing the abnormal ingot or the ingot containing the abnormal ingot.

8. The method for removing billets from continuous casting billets according to claim 7, characterized in that: In S3, the parameter acquisition module monitors the production parameters in real time and sends the parameters to the control module for comparison. If the comparison finds that the parameters are different from the preset ones, the alarm module will issue an alarm.

9. The method for removing billets from continuous casting billets according to claim 7, characterized in that: In S5, the scrap cutting margin is preset according to different steel grade processes, and the scrap cutting margin is preset to 0.5 m before the start position of the process abnormality and / or 1 m after the end position of the process abnormality.

10. The method for removing billets from continuous casting billets according to claim 7, characterized in that: In S501, judging whether it is necessary to push in new billets according to the size of the abnormal billet after cutting; When the abnormal billet segment is less than or equal to 4 meters, since the abnormal billet segment less than or equal to 4 meters after cutting cannot move on the roller table by itself, it is necessary to push a new billet in later so that its head pushes the abnormal billet to move and discharge; When the abnormal billet section is larger than 4 meters, it can be directly discharged through the roller after cutting, without pushing new billets in to drive the abnormal billet section to move.

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