CN109926895B - Online grinding control method and device for furnace roller in annealing furnace - Google Patents
Online grinding control method and device for furnace roller in annealing furnace Download PDFInfo
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- CN109926895B CN109926895B CN201910150007.4A CN201910150007A CN109926895B CN 109926895 B CN109926895 B CN 109926895B CN 201910150007 A CN201910150007 A CN 201910150007A CN 109926895 B CN109926895 B CN 109926895B
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- 238000000227 grinding Methods 0.000 title claims abstract description 184
- 238000000034 method Methods 0.000 title claims abstract description 70
- 238000000137 annealing Methods 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 46
- 230000010485 coping Effects 0.000 claims abstract description 46
- 239000010959 steel Substances 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 238000005498 polishing Methods 0.000 claims abstract description 11
- 238000004590 computer program Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 230000007547 defect Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The invention provides an online coping control method and device for a furnace roller in an annealing furnace, wherein the method comprises the following steps: determining the surface quality condition of the strip steel and the number of a furnace roller group needing to be polished; according to the process requirements, obtaining a furnace roller area needing on-line polishing; determining a furnace roller grinding control mode according to the furnace roller group number needing grinding; obtaining speed control word information; and sending the speed control word information to a transmission device, and adjusting the furnace roller grinding speed by the transmission device according to the speed control word information. According to the invention, the technical problems that the strip steel grinding needs to be controlled one by one for each furnace roller, the operation is troublesome, the grinding speed is slow, the production speed is influenced, and the grinding quality is poor are solved, and the accurate and rapid furnace roller group control is adopted, so that the technical effects of improving the grinding speed and precision of the strip steel, and further improving the production efficiency and the product quality are achieved.
Description
Technical Field
The invention relates to the technical field of steel rolling, in particular to a furnace roller online grinding control method and device in an annealing furnace.
Background
In the steel smelting industry, the running speed of furnace rollers in the medium and low-grade non-oriented silicon steel annealing furnace directly influences the surface quality of strip steel, and the actual speed of 100 furnace rollers in the annealing furnace cannot be absolutely consistent. Therefore, according to production requirements, production personnel need to modify the online speed of part of furnace rollers in an RTF section and an SF section in a process area, and the incomplete quality of the surface of the strip steel in operation is eliminated through online grinding, so that the product quality is improved. In actual operation, a worker can determine the number and the speed of furnace rollers needing online grinding according to the detection information of the Kangnai vision meter, input the speed values one by one for each 100 furnace rollers, grind the furnace rollers, and cancel the grinding speed values one by one after grinding. The implementation of the invention has a supporting function for the stable operation of the silicon steel non-oriented medium and low grade production rolling mill equipment.
However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems:
in the prior art, the strip steel grinding needs to control each furnace roller one by one, the operation is troublesome, the grinding speed is low, the production speed is influenced, and the grinding quality is poor.
Disclosure of Invention
The embodiment of the invention provides an annealing furnace inner furnace roller online grinding control method and device, solves the technical problems that strip steel grinding needs to be controlled one by one for each furnace roller, the operation is troublesome, the grinding speed is low, the production speed is influenced, and the grinding quality is poor, adopts accurate and rapid furnace roller group control, achieves the technical effects of improving the grinding speed and precision of the strip steel, and further improving the production efficiency and the product quality.
In view of the above problems, the embodiments of the present application are proposed to provide an annealing furnace roller online thinning control method and device.
In a first aspect, the invention provides an online grinding control method for a furnace roller in an annealing furnace, which comprises the following steps: determining the surface quality condition of the strip steel and the number of a furnace roller group needing to be polished; according to the process requirements, obtaining a furnace roller area needing on-line polishing; determining a furnace roller grinding control mode according to the furnace roller group number needing grinding; obtaining speed control word information; and sending the speed control word information to a transmission device, and adjusting the furnace roller grinding speed by the transmission device according to the speed control word information.
Preferably, the transmission device adjusts the furnace roller grinding speed according to the speed control word information, and the method comprises the following steps: obtaining a furnace roller grinding control mode; if the furnace roller grinding control mode is a positive and negative alternative grinding mode, obtaining a first grinding speed value; acquiring an actual speed value of the furnace roller; and adding the first coping speed value and the actual furnace roller speed value in a positive-negative alternative manner to generate a speed difference between the furnace roller and the strip steel, and adjusting the coping speed of the furnace roller.
Preferably, the range of the alternate thinning speed value is-20% to + 20%.
Preferably, the transmission device adjusts the furnace roller grinding speed according to the speed control word information, and the method comprises the following steps: obtaining a furnace roller grinding control mode; if the furnace roller grinding control mode is a positive and negative searching mode, grouping the furnace rollers; obtaining a second grinding speed value; and adjusting the furnace roller grinding speed of the furnace rollers after grouping according to the second grinding speed value.
Preferably, the grouping the furnace rollers comprises: obtaining the total number of the furnace rollers; determining a group of furnace rollers at the middle position of the furnace rollers according to the total number of the furnace rollers; obtaining furnace roller grouping rules; and averagely grouping the rest furnace rollers according to the furnace roller grouping rule.
Preferably, the sending the speed control word information to a transmission device, and after the transmission device adjusts the furnace roller grinding speed according to the speed control word information, the method includes: obtaining a coping standard; obtaining an actual grinding result; judging whether the actual coping result meets the coping standard or not; and if the actual grinding result does not meet the grinding standard, continuously grinding the furnace roller according to the speed control word information.
In a second aspect, the invention provides an online grinding control device for a furnace roller in an annealing furnace, which comprises: the first determining unit determines the surface quality condition of the strip steel and the number of the furnace roller group needing to be polished; the first obtaining unit is used for obtaining a furnace roller area needing on-line coping according to the process requirement; the second determining unit determines a furnace roller grinding control mode according to the furnace roller group number needing grinding; a second obtaining unit that obtains speed control word information; and the first processing unit sends the speed control word information to a transmission device, and the transmission device adjusts the furnace roller grinding speed according to the speed control word information.
Preferably, the first processing unit includes: a third obtaining unit that obtains the furnace roller coping control manner; a fourth obtaining unit, configured to obtain a first grinding speed value if the furnace roller grinding control mode is a positive-negative alternative grinding mode; a fifth obtaining unit that obtains an actual speed value of the furnace roller; and the second processing unit is used for alternately adding the first coping speed value and the actual furnace roller speed value to generate a speed difference between the furnace roller and the strip steel, and adjusting the coping speed of the furnace roller.
Preferably, the range of the alternate thinning speed value is-20% to + 20%.
Preferably, the first processing unit further includes: a sixth obtaining unit that obtains the furnace roller coping control manner; the third processing unit is used for grouping the furnace rollers if the furnace roller grinding control mode is a positive and negative searching mode; a seventh obtaining unit that obtains a second thinning speed value; and the fourth processing unit is used for adjusting the furnace roller grinding speed of the furnace rollers after grouping according to the second grinding speed value.
Preferably, the third processing unit includes: an eighth obtaining unit that obtains a total number of the furnace rollers; the third determining unit determines a group of furnace rollers at the middle position of the furnace rollers according to the total number of the furnace rollers; a ninth obtaining unit that obtains a furnace roller grouping rule; and the fifth processing unit is used for averagely grouping the rest furnace rollers according to the furnace roller grouping rule.
Preferably, the first processing unit further includes: a tenth obtaining unit that obtains a thinning criterion; an eleventh obtaining unit that obtains an actual thinning result; a first judging unit that judges whether the actual thinning result meets the thinning standard; and the sixth processing unit is used for grinding the furnace roller continuously according to the speed control word information if the actual grinding result does not meet the grinding standard.
In a third aspect, the present invention provides another online coping control device for furnace rollers in an annealing furnace, including a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor implements the following steps when executing the program: determining the surface quality condition of the strip steel and the number of a furnace roller group needing to be polished; according to the process requirements, obtaining a furnace roller area needing on-line polishing; determining a furnace roller grinding control mode according to the furnace roller group number needing grinding; obtaining speed control word information; and sending the speed control word information to a transmission device, and adjusting the furnace roller grinding speed by the transmission device according to the speed control word information.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
the embodiment of the application provides a furnace roller online coping control method and device in an annealing furnace, wherein the method comprises the following steps: determining the surface quality condition of the strip steel and the number of a furnace roller group needing to be polished; according to the process requirements, obtaining a furnace roller area needing on-line polishing; determining a furnace roller grinding control mode according to the furnace roller group number needing grinding; obtaining speed control word information; and sending the speed control word information to a transmission device, and adjusting the furnace roller grinding speed by the transmission device according to the speed control word information. According to the invention, the technical problems that the strip steel grinding needs to be controlled one by one for each furnace roller, the operation is troublesome, the grinding speed is slow, the production speed is influenced, and the grinding quality is poor are solved, and the accurate and rapid furnace roller group control is adopted, so that the technical effects of improving the grinding speed and precision of the strip steel, and further improving the production efficiency and the product quality are achieved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
FIG. 1 is a schematic flow chart of a method for controlling online grinding of a furnace roller in an annealing furnace according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an online grinding control device for a furnace roller in an annealing furnace according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another online coping control device for a furnace roller in an annealing furnace according to an embodiment of the invention.
Detailed Description
The embodiment of the application provides a furnace roller online coping control method and device in an annealing furnace, wherein the method comprises the following steps: determining the surface quality condition of the strip steel and the number of a furnace roller group needing to be polished; according to the process requirements, obtaining a furnace roller area needing on-line polishing; determining a furnace roller grinding control mode according to the furnace roller group number needing grinding; obtaining speed control word information; and sending the speed control word information to a transmission device, and adjusting the furnace roller grinding speed by the transmission device according to the speed control word information. According to the invention, the technical problems that the strip steel grinding needs to be controlled one by one for each furnace roller, the operation is troublesome, the grinding speed is slow, the production speed is influenced, and the grinding quality is poor are solved, and the accurate and rapid furnace roller group control is adopted, so that the technical effects of improving the grinding speed and precision of the strip steel, and further improving the production efficiency and the product quality are achieved.
The technical solutions of the present invention are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present invention are described in detail in the technical solutions of the present application, and are not limited to the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Example one
FIG. 1 is a schematic flow chart of a method for controlling online coping of a furnace roller in an annealing furnace according to an embodiment of the invention. The method comprises the following steps:
step 110: determining the surface quality condition of the strip steel and the number of a furnace roller group needing to be polished;
specifically, the surface quality condition of the strip steel can be determined by adopting detection methods such as manual detection, manual and mechanical detection, the manual detection mainly takes manual naked eyes as main parts, and under the condition that the speed is lower than 3m/s, a detection worker can smoothly detect most obvious surface defects such as creases and scratches. Rust, and the like. The manual and mechanical detection is to overcome the visual blurring caused by high-speed movement and enable the detection workers to see clearer images, a pulse flash light source of about 10us is adopted, and due to high optical frequency, the movement of the strip steel in the period is static relative to human eyes, so that the detection workers can see a series of clearer images. The trained inspectors familiar with the surface defects can identify the surface defects of the strip steel within the speed of 500 m/min. The method is also combined with a special video camera, the defects are observed through a monitor, and the pictures of the whole roll of strip steel are recorded by a video recorder, so that the detection is more accurate. The mechanical detection can adopt means such as eddy current, electromagnetism, ultrasonic wave and laser to process signals left by the strip steel passing through the machine and judge and analyze the surface quality condition of the strip steel. The surface quality condition of the strip steel can be determined according to the detection of a Kangnai vision meter and other modes, after the surface quality condition of the strip steel is determined, the grinding furnace rollers can be grouped according to requirements, 100 furnace rollers in the annealing furnace are averagely divided into 4 groups according to the process, the furnace rollers are distributed according to an RTF section (heating section) and an SF section (soaking section) of the annealing furnace, the RTF section has 25 furnace rollers in total, the SF section has 75 furnace rollers, the 100 furnace rollers are averagely divided into 4 groups, and the groups are named as A group, B group, C group and D group.
Step 120: according to the process requirements, obtaining a furnace roller area needing on-line polishing;
step 130: determining a furnace roller grinding control mode according to the furnace roller group number needing grinding;
specifically, after the strip steel with quality problems on the surface is determined according to process requirements, production standards and the like, furnace rollers required for grinding can be judged according to the positions of the furnace rollers, groups of the furnace rollers can be judged according to the positions of the furnace rollers, after the groups of the furnace rollers required to be ground are determined, the modes required to be ground can be selected according to process experience or other modes, the grinding modes of the furnace rollers are divided into a positive and negative alternative grinding mode and a positive and negative search mode, an operator determines the grinding mode of the furnace rollers according to the process experience, the process requirements and the like, and only the grinding modes of the furnace rollers need to be ground according to the groups A, B, C or D. In the actual operation process, after the group number is determined, a worker can select a furnace roller grinding control mode through the operation platform, the PLC processor sends the processed speed control word to the transmission device through the network, and the transmission device can automatically control the equipment to adjust the speed.
Step 140: obtaining speed control word information;
specifically, the control word, i.e., the program status word, refers to a segment of memory or hardware area in the computer that contains program status information used by the operating system and potential hardware. It often contains a pointer to the next instruction that needs to be executed. The program status word also typically contains an error status field and condition codes for interrupt enable or disable, super or normal user mode bits. The main information that the program status word can reflect the program running status is: the contents of the instruction counter, the characteristic information of the instruction operation result for conditional branch, the program status flag bit, the interrupt mask flag bit and the overflow flag bit, etc. This information is information that is or may be used for each instruction executed and substantially reflects the instantaneous state of the instruction level during program execution. For control convenience, this information is collectively stored in a machine word (or doubleword), referred to as a program status word. The register used to store the program status word is referred to as the program status register. The program status word is dynamically saved in the program status register during program execution. When the program is interrupted, the program status word will be saved as live information. When the program operates again, the instruction of restoring the program status word is executed in the field program, and the program status word is sent back to the program status register. After the operator selects and determines the furnace roller grinding control mode, the PLC processor can automatically process the speed control word and send the processed speed control word to the transmission device through the network.
Step 150: and sending the speed control word information to a transmission device, and adjusting the furnace roller grinding speed by the transmission device according to the speed control word information. Further, the transmission device adjusts the furnace roller grinding speed according to the speed control word information, and the method comprises the following steps: obtaining a furnace roller grinding control mode; if the furnace roller grinding control mode is a positive and negative alternative grinding mode, obtaining a first grinding speed value; acquiring an actual speed value of the furnace roller; and adding the first coping speed value and the actual furnace roller speed value in a positive-negative alternative manner to generate a speed difference between the furnace roller and the strip steel, and adjusting the coping speed of the furnace roller. Furthermore, the range of the alternate coping speed value is-20% to + 20%. Further, the transmission device adjusts the furnace roller grinding speed according to the speed control word information, and the method comprises the following steps: obtaining a furnace roller grinding control mode; if the furnace roller grinding control mode is a positive and negative searching mode, grouping the furnace rollers; obtaining a second grinding speed value; and adjusting the furnace roller grinding speed of the furnace rollers after grouping according to the second grinding speed value. Further, the sending the speed control word information to a transmission device, wherein the transmission device performs furnace roller grinding speed adjustment according to the speed control word information, and the method includes: obtaining a coping standard; obtaining an actual grinding result; judging whether the actual coping result meets the coping standard or not; and if the actual grinding result does not meet the grinding standard, continuously grinding the furnace roller according to the speed control word information.
Specifically, the grinding modes include a positive and negative alternative grinding mode and a positive and negative search mode grinding mode, when a worker selects the positive and negative alternative grinding mode according to process experience, if 25 furnace rollers in the group A need to be ground, an alternative grinding speed value is input on a human-computer interface (for example, when 10 is input, the first speed value is + 10%, the second speed value is-10%, and the third speed value is + 10%), and the like), and the speed value is limited within the range of-20% to + 20%. The speed value is added on the basis of the actual speed of the furnace roller, so that the speed difference is generated between the furnace roller and the strip steel in the section, the accretion is eliminated, the grinding starting button is clicked on a human-computer interface, the grinding is started on site, when the grinding needs to be stopped, the grinding stopping button is clicked on the human-computer interface, the grinding is stopped on site, and the grinding mode is eliminated. When the worker selects the positive and negative searching mode according to the process experience, 25 furnace rollers in each group can be divided into 9 groups, each three furnace rollers are one group, the furnace roller in the middle is one group, and the coping speed value is a fixed value for process production. And clicking a sharpening start button on the human-computer interface to start sharpening on site, and when sharpening needs to be stopped, clicking a sharpening stop button on the human-computer interface to stop sharpening on site and clearing a sharpening mode. The worker can manually set a grinding standard value or preset the grinding standard value by a computer, after the whole grinding process is finished, manual detection or a detection system can be adopted to automatically detect whether the grinding result meets the standard, if the grinding result does not meet the standard, the grinding is continuously carried out manually according to speed control word information, or the grinding is continuously carried out under the automatic control of a PLC until the standard is met, the grinding process is automatically stopped, and the operator can also select to manually stop the grinding process according to the actual grinding condition on site.
Under the condition that the process section normally operates, the invention can control the grinding speed of the furnace rollers in groups, and friction is carried out on the strip steel in different degrees through the operating speed difference between partial furnace rollers, thereby eliminating the surface quality defect of the strip steel. According to the process requirements, an operator only needs to determine the group number to be polished, presses a key start button, automatically executes the whole process program, finishes furnace roller polishing speed control, not only improves polishing speed, but also improves product quality.
Example 2
Based on the same inventive concept as the furnace roller online grinding control method in the annealing furnace in the previous embodiment, the invention also provides an annealing furnace roller online grinding control device, as shown in fig. 2, the device comprises: the first determining unit determines the surface quality condition of the strip steel and the number of the furnace roller group needing to be polished; the first obtaining unit is used for obtaining a furnace roller area needing on-line coping according to the process requirement; the second determining unit determines a furnace roller grinding control mode according to the furnace roller group number needing grinding; a second obtaining unit that obtains speed control word information; and the first processing unit sends the speed control word information to a transmission device, and the transmission device adjusts the furnace roller grinding speed according to the speed control word information.
Further, the first processing unit includes: a third obtaining unit that obtains the furnace roller coping control manner; a fourth obtaining unit, configured to obtain a first grinding speed value if the furnace roller grinding control mode is a positive-negative alternative grinding mode; a fifth obtaining unit that obtains an actual speed value of the furnace roller; and the second processing unit is used for alternately adding the first coping speed value and the actual furnace roller speed value to generate a speed difference between the furnace roller and the strip steel, and adjusting the coping speed of the furnace roller.
Furthermore, the range of the alternate coping speed value is-20% to + 20%.
Further, the first processing unit further includes: a sixth obtaining unit that obtains the furnace roller coping control manner; the third processing unit is used for grouping the furnace rollers if the furnace roller grinding control mode is a positive and negative searching mode; a seventh obtaining unit that obtains a second thinning speed value; and the fourth processing unit is used for adjusting the furnace roller grinding speed of the furnace rollers after grouping according to the second grinding speed value.
Further, the third processing unit includes: an eighth obtaining unit that obtains a total number of the furnace rollers; the third determining unit determines a group of furnace rollers at the middle position of the furnace rollers according to the total number of the furnace rollers; a ninth obtaining unit that obtains a furnace roller grouping rule; and the fifth processing unit is used for averagely grouping the rest furnace rollers according to the furnace roller grouping rule.
Further, the first processing unit further includes: a tenth obtaining unit that obtains a thinning criterion; an eleventh obtaining unit that obtains an actual thinning result; a first judging unit that judges whether the actual thinning result meets the thinning standard; and the sixth processing unit is used for grinding the furnace roller continuously according to the speed control word information if the actual grinding result does not meet the grinding standard.
Various changes and specific examples of the annealing furnace inner furnace roller online grinding control method in embodiment 1 of fig. 1 are also applicable to the annealing furnace inner furnace roller online grinding control device of the present embodiment, and through the detailed description of the annealing furnace inner furnace roller online grinding control method, those skilled in the art can clearly know the implementation method of the annealing furnace inner furnace roller online grinding control device in the present embodiment, so for the brevity of the description, detailed descriptions are omitted here.
Example 3
Based on the same inventive concept as the online grinding control method for the furnace roller in the annealing furnace in the previous embodiment, the invention also provides another online grinding control device for the furnace roller in the annealing furnace, wherein a computer program is stored on the online grinding control device, and when the computer program is executed by a processor, the computer program realizes the steps of any one of the online grinding control methods for the furnace roller in the annealing furnace.
Where in fig. 3 a bus architecture (represented by bus 300), bus 300 may include any number of interconnected buses and bridges, bus 300 linking together various circuits including one or more processors, represented by processor 302, and memory, represented by memory 304. The bus 300 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 306 provides an interface between the bus 300 and the receiver 301 and transmitter 303. The receiver 301 and the transmitter 303 may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium.
The processor 302 is responsible for managing the bus 300 and general processing, and the memory 304 may be used for storing data used by the processor 302 in performing operations.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
1. the embodiment of the application provides a furnace roller online coping control method and device in an annealing furnace, wherein the method comprises the following steps: determining the surface quality condition of the strip steel and the number of a furnace roller group needing to be polished; according to the process requirements, obtaining a furnace roller area needing on-line polishing; determining a furnace roller grinding control mode according to the furnace roller group number needing grinding; obtaining speed control word information; and sending the speed control word information to a transmission device, and adjusting the furnace roller grinding speed by the transmission device according to the speed control word information. According to the invention, the technical problems that the strip steel grinding needs to be controlled one by one for each furnace roller, the operation is troublesome, the grinding speed is slow, the production speed is influenced, and the grinding quality is poor are solved, and the accurate and rapid furnace roller group control is adopted, so that the technical effects of improving the grinding speed and precision of the strip steel, and further improving the production efficiency and the product quality are achieved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. An online grinding control method for a furnace roller in an annealing furnace is characterized by comprising the following steps:
determining the surface quality condition of the strip steel and the number of a furnace roller group needing to be polished;
according to the process requirements, obtaining a furnace roller area needing on-line polishing;
determining a furnace roller grinding control mode according to the furnace roller group number needing grinding;
obtaining speed control word information;
sending the speed control word information to a transmission device, and adjusting the furnace roller grinding speed by the transmission device according to the speed control word information;
wherein, the transmission device carries out furnace roller coping speed adjustment according to the speed control word information, and the method comprises the following steps:
obtaining a furnace roller grinding control mode;
if the furnace roller grinding control mode is a positive and negative alternative grinding mode, obtaining a first grinding speed value;
acquiring an actual speed value of the furnace roller;
adding the first coping speed value and the actual furnace roller speed value in a positive-negative alternative manner to generate a speed difference between the furnace roller and the strip steel, and adjusting the coping speed of the furnace roller;
after obtaining the speed control word information, the method comprises the following steps: and processing the speed control word information according to the furnace roller grinding control mode.
2. The method according to claim 1, characterized in that said alternate thinning speed value ranges from-20% to + 20%.
3. The method of claim 1, wherein the actuator making furnace roll sharpening speed adjustments based on the speed control word information comprises:
obtaining a furnace roller grinding control mode;
if the furnace roller grinding control mode is a positive and negative searching mode, grouping the furnace rollers;
obtaining a second grinding speed value;
and adjusting the furnace roller grinding speed of the furnace rollers after grouping according to the second grinding speed value.
4. The method of claim 3, wherein said grouping said furnace rollers comprises:
obtaining the total number of the furnace rollers;
determining a group of furnace rollers at the middle position of the furnace rollers according to the total number of the furnace rollers;
obtaining furnace roller grouping rules;
and averagely grouping the rest furnace rollers according to the furnace roller grouping rule.
5. The method of claim 1, wherein sending the speed control word information to a transmission, the transmission after performing furnace roll sharpening speed adjustments based on the speed control word information, comprises:
obtaining a coping standard;
obtaining an actual grinding result;
judging whether the actual coping result meets the coping standard or not;
and if the actual grinding result does not meet the grinding standard, continuously grinding the furnace roller according to the speed control word information.
6. The utility model provides an online coping controlling means of stove roller in annealing furnace which characterized in that, the device includes:
the first determining unit determines the surface quality condition of the strip steel and the number of the furnace roller group needing to be polished;
the first obtaining unit is used for obtaining a furnace roller area needing on-line coping according to the process requirement;
the second determining unit determines a furnace roller grinding control mode according to the furnace roller group number needing grinding;
a second obtaining unit that obtains speed control word information;
the first processing unit sends the speed control word information to a transmission device, and the transmission device adjusts the furnace roller grinding speed according to the speed control word information;
the first processing unit is used for processing the speed control word information according to the furnace roller coping control mode;
wherein the first processing unit comprises:
a third obtaining unit that obtains the furnace roller coping control manner;
a fourth obtaining unit, configured to obtain a first grinding speed value if the furnace roller grinding control mode is a positive-negative alternative grinding mode;
a fifth obtaining unit that obtains an actual speed value of the furnace roller;
and the second processing unit is used for alternately adding the first coping speed value and the actual furnace roller speed value to generate a speed difference between the furnace roller and the strip steel, and adjusting the coping speed of the furnace roller.
7. An online coping control device for a furnace roller in an annealing furnace, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, and is characterized in that the processor executes the program to realize the following steps:
determining the surface quality condition of the strip steel and the number of a furnace roller group needing to be polished;
according to the process requirements, obtaining a furnace roller area needing on-line polishing;
determining a furnace roller grinding control mode according to the furnace roller group number needing grinding;
obtaining speed control word information;
sending the speed control word information to a transmission device, and adjusting the furnace roller grinding speed by the transmission device according to the speed control word information;
the transmission device adjusts the furnace roller grinding speed according to the speed control word information, and comprises:
obtaining a furnace roller grinding control mode;
if the furnace roller grinding control mode is a positive and negative alternative grinding mode, obtaining a first grinding speed value;
acquiring an actual speed value of the furnace roller;
adding the first coping speed value and the actual furnace roller speed value in a positive-negative alternative manner to generate a speed difference between the furnace roller and the strip steel, and adjusting the coping speed of the furnace roller;
and after the speed control word information is obtained, processing the speed control word information according to a furnace roller coping control mode.
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| JPH0625349U (en) * | 1992-08-31 | 1994-04-05 | 東邦窯業株式会社 | Heat-resistant rolls used in steel sheet manufacturing equipment |
| FR2760077B1 (en) * | 1997-02-27 | 1999-04-30 | Stein Heurtey | DEVICE FOR ENSURING THE REPLACEMENT OF A TAPE SUPPORT ROLLER IN A HEAT TREATMENT OVEN |
| EP1034882A3 (en) * | 1999-03-11 | 2002-07-10 | Karsten Kristiansen | An apparatus for edge grinding plate-like articles in a vertical stack, e.g. laminboards |
| WO2008051779A2 (en) * | 2006-10-19 | 2008-05-02 | B & J Manufacturing Company | Method and apparatus for finishing the surface of rubber covered rollers |
| CN102560071A (en) * | 2012-01-16 | 2012-07-11 | 美钢联工程技术股份有限公司 | Method for grinding hearth roll of continuous annealing unit on line |
| CN105177271A (en) * | 2015-09-28 | 2015-12-23 | 中冶南方（新余）冷轧新材料技术有限公司 | Carbon sleeve roller protrusion judging and removing method |
| CN105385836B (en) * | 2015-12-21 | 2017-08-25 | 马鞍山钢铁股份有限公司 | A kind of method that not blow-on handles furnace roller dross online |
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