CN114130832B - Method and device for controlling cooling water shortage and computer readable storage medium - Google Patents
Method and device for controlling cooling water shortage and computer readable storage medium Download PDFInfo
- Publication number
- CN114130832B CN114130832B CN202111273421.8A CN202111273421A CN114130832B CN 114130832 B CN114130832 B CN 114130832B CN 202111273421 A CN202111273421 A CN 202111273421A CN 114130832 B CN114130832 B CN 114130832B
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- cooling water
- steel
- tapping
- detecting
- rolling
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- 239000000498 cooling water Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000003860 storage Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 238000005096 rolling process Methods 0.000 claims abstract description 41
- 238000010079 rubber tapping Methods 0.000 claims abstract description 21
- 238000007689 inspection Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000005098 hot rolling Methods 0.000 claims abstract description 14
- 238000004590 computer program Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
- B21B33/02—Preventing fracture of rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The invention provides a control method, a device and a computer readable storage medium for preventing cooling water shortage in a hot rolling mill rolling process, wherein the rolling process comprises heating furnace tapping, hot inspection before a steel drawing machine and rolling, and the method comprises the following steps: first, detecting a cooling water supply state; secondly, when a water shortage signal is received, detecting whether a cooling water valve is closed manually; thirdly, when the cooling water valve is not closed manually, an alarm is sent out and the tapping state is detected; fourthly, performing thermal inspection before the steel leaves the steel drawing machine, and allowing the heating furnace to discharge the next steel; and fifthly, stopping tapping when the steel is in the hot inspection before the steel drawing machine. The control method can prevent the occurrence of roll breakage in the absence of cooling water.
Description
Technical Field
The invention relates to the field of machining, in particular to a control method and device for preventing cooling water from being lack in a rolling process of a hot rolling mill and a computer readable storage medium.
Background
In the tissue production process, especially when the start rolling is to prevent roll slipping or the water shut-off inspection is needed to be carried out on a rolling mill temporarily in a working process, the valve is forgotten to be opened in time sometimes, and the water valve blocking connecting rod is blocked in the production process to cause the accident of water shortage and roll breakage of the rolls, so that the hardware facilities of cooling water of the rough and medium rolling rolls are required to be improved, and perfect automatic control logic and early warning are added, thereby ensuring the running environment of the rolls and avoiding abnormal damage and steel piling accidents caused by the abnormal damage.
Disclosure of Invention
The embodiment of the invention provides a control method for preventing cooling water from being lack of water in a rolling process of a hot rolling mill, which at least solves the problem of roll breakage caused by lack of cooling water in the related art.
According to an embodiment of the present invention, there is provided a control method for preventing a shortage of cooling water in a rolling process of a hot rolling mill, the rolling process including a heating furnace tapping, a pre-drawing hot inspection and a rolling, including:
first, detecting a cooling water supply state;
secondly, when a water shortage signal is received, detecting whether a cooling water valve is closed manually;
thirdly, when the cooling water valve is not closed manually, an alarm is sent out and the tapping state is detected;
fourthly, performing thermal inspection before the steel leaves the steel drawing machine, and allowing the heating furnace to discharge the next steel;
and fifthly, stopping tapping when the steel is in the hot inspection before the steel drawing machine.
Further, in the second step, after the water shortage signal is received, whether the cooling water valve is manually closed is detected, and when the cooling water valve is manually closed, timing is started, and after more than 100 seconds, an alarm is given, the tapping state is detected, and the fourth step to the fifth step are continuously executed.
Further, in the first step, the cooling water supply state is detected by detecting the pipe pressure by the pressure relay.
Further, in the fourth step, after the next steel is discharged from the heating furnace, after the rolling mill for rolling steel sends out a biting signal, the tapping is stopped.
Further, in the third step, the sending out of the alarm includes lighting a warning light on the console, making a sound, and performing a text alarm on the monitor screen.
Further, in the second step, detecting whether the cooling water valve is manually closed or not, detecting the position of the cooling water control knob, and when the cooling water control knob is in an automatic position or a normally open position, namely, non-manually closed.
The embodiment of the invention also provides a control device for preventing cooling water shortage in the rolling process of the hot rolling mill, which comprises the following components:
the detection assembly is used for cooling water supply state, cooling water valve state and the position of steel in the roller process;
the information receiving component is used for receiving the parameters detected by the detecting component;
and the processor is used for processing the parameters received by the information receiving component and realizing the control method of the cooling water shortage when executing the computer program stored in the memory.
The embodiment of the invention also provides a computer readable storage medium, and a computer program is stored on the computer readable storage medium, and the computer program realizes a control method for preventing cooling water from being lack of water in the rolling process of the hot rolling mill when being executed by a processor.
The beneficial effects are that: compared with the prior art, the invention detects the cooling water in the roller process so as to prevent the roller breakage caused by the cooling water. The invention further increases judgment to prevent misoperation when water is manually stopped; and prevents the phenomena of black printing, furnace return, steel clamping and the like caused by the dephosphorization of the last steel.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a schematic view of a roll system according to an embodiment of the invention.
Fig. 2 is a flowchart of a control method for preventing a cooling water shortage during a rolling process of a hot rolling mill according to an embodiment of the present invention.
The numbers or letters in the figures represent:
1. a heating furnace; 2. tapping the heat-preserving roller way; 3. a steel drawing machine; h1, V2, H3, V4, H5, V6, H7 to V12 represent 12 rolling mills, respectively; A. a thermal inspection position before steel drawing; B. entering a thermal detection position before a V2 rolling mill; C. entering a thermal inspection position before the V6 rolling mill.
Detailed Description
The invention will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
Referring to fig. 1 and 2, an embodiment of the present invention provides a control device for preventing cooling water from being lost during rolling in a hot rolling mill.
The rolling process comprises tapping of a heating furnace, heat detection before a steel drawing machine and steel rolling.
Referring specifically to fig. 1, fig. 1 is a schematic view of a roll system. The roller system comprises a heating furnace 1, a steel tapping heat preservation roller way 2 and a steel drawing machine 3. H1, V2, H3, V4, H5, V6, H7 to V12 represent 12 rolling mills, respectively. Wherein H1-V6 are roughing mills and H7-V12 are intermediate mills. After being sent out from the heating furnace 1, the steel enters the steel drawing machine 3 through the steel tapping heat preservation roller way 2, and is sent into a subsequent rolling mill by the steel drawing machine 3 for rolling steel.
In the figure, A is the thermal inspection position before steel drawing, B is the thermal inspection position before entering a V2 rolling mill, and C is the thermal inspection position before entering a V6 rolling mill. There is typically a descaling hot check before drawing the steel.
Control device of cooling water lack in prevention hot rolling mill rolling process includes:
the detection assembly is used for cooling water supply state, cooling water valve state and the position of steel in the roller process;
the information receiving component is used for receiving the parameters detected by the detecting component;
and the processor is used for processing the parameters received by the information receiving component and realizing a control method for preventing cooling water shortage in the rolling process of the hot rolling mill when executing the computer program stored in the memory.
The detection assembly includes a pressure relay to detect a pipe pressure to detect a cooling water supply state.
The information receiving component is in communication connection with the heating furnace, the rolling mill, the pressure relay and the like through the PLC so as to receive related parameters.
Referring to fig. 2, a control method for preventing cooling water shortage in a rolling process of a hot rolling mill includes:
first, a cooling water supply state is detected.
And secondly, detecting whether the cooling water valve is closed manually when the water shortage signal is received.
And thirdly, when the cooling water valve is not closed manually, an alarm is sent out and the tapping state is detected.
Further, when the cooling water valve is manually closed, the timing is started, and after more than 100 seconds, an alarm is issued and the tapping state is detected, and the fourth to fifth steps are continuously performed. To prevent the later steel from being dephosphorized to cause black printing and returning to the furnace or clamping steel, etc.
The method comprises the steps of automatically judging two conditions of water shortage of the roller in real time, namely water shortage caused by manual shutdown on a local operation box, and non-manual abnormal water interruption in the steel rolling process. And respectively making corresponding actions according to different conditions.
And fourthly, performing thermal inspection before the steel leaves the steel drawing machine, and allowing the heating furnace to discharge the next steel.
And fifthly, stopping tapping when the steel is in the hot inspection before the steel drawing machine.
Further, in the first step, the cooling water supply state is detected by detecting the pipe pressure by the pressure relay.
Further, in the fourth step, after the next steel is discharged from the heating furnace, after the rolling mill for rolling steel sends out a biting signal, the tapping is stopped.
Further, in the third step, the sending out of the alarm includes lighting a warning light on the console, making a sound, and performing a text alarm on the monitor screen.
Further, in the second step, detecting whether the cooling water valve is manually closed or not, detecting the position of the cooling water control knob, and when the cooling water control knob is in an automatic position or a normally open position, namely, non-manually closed.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which is characterized in that the computer program, when executed by a processor, realizes the control method for preventing the cooling water from being lack of water in the rolling process of the hot rolling mill.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (6)
1. A control method for preventing cooling water from being lack of water in a rolling process of a hot rolling mill, wherein the rolling process comprises heating furnace tapping, front hot inspection of a steel drawing machine and steel rolling, and the control method is characterized by comprising the following steps:
first, detecting a cooling water supply state;
secondly, when a water shortage signal is received, detecting whether a cooling water valve is closed manually;
thirdly, when the cooling water valve is not closed manually, an alarm is sent out and the tapping state is detected;
fourthly, performing thermal inspection before the steel leaves the steel drawing machine, and allowing the heating furnace to discharge the next steel;
fifthly, stopping tapping when the steel is in the front of the steel drawing machine for thermal inspection;
in the second step, when a water shortage signal is received, detecting whether the cooling water valve is manually closed or not, starting timing when the cooling water valve is manually closed, sending out an alarm and detecting a tapping state after waiting for 100 seconds, and continuously executing the fourth step to the fifth step;
in the second step, detecting whether the cooling water valve is manually closed or not, detecting the position of the cooling water control knob, and when the cooling water control knob is in an automatic position or a normally open position, namely, non-manually closed.
2. The method for controlling a cooling water shortage according to claim 1, wherein in the first step, the cooling water supply state is detected by detecting the pipe pressure by a pressure relay.
3. The method for controlling lack of cooling water according to claim 1, wherein in the fourth step, after the next steel is discharged from the heating furnace, after the rolling mill for rolling steel gives out a biting signal, the tapping is stopped.
4. The method according to claim 1, wherein in the third step, the warning is provided by lighting a warning lamp on the console, sounding a sound, and giving a text warning on the monitor screen.
5. A control device for preventing a shortage of cooling water in a rolling process of a hot rolling mill, comprising:
the detection assembly is used for cooling water supply state, cooling water valve state and the position of steel in the roller process;
the information receiving component is used for receiving the parameters detected by the detecting component;
a processor for processing the parameters received by the information receiving component and implementing the cooling water shortage control method according to any one of claims 1 to 4 when executing the computer program stored in the memory.
6. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the cooling water shortage control method according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273421.8A CN114130832B (en) | 2021-10-29 | 2021-10-29 | Method and device for controlling cooling water shortage and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273421.8A CN114130832B (en) | 2021-10-29 | 2021-10-29 | Method and device for controlling cooling water shortage and computer readable storage medium |
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| Publication Number | Publication Date |
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| CN114130832A CN114130832A (en) | 2022-03-04 |
| CN114130832B true CN114130832B (en) | 2023-11-03 |
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| CN202111273421.8A Active CN114130832B (en) | 2021-10-29 | 2021-10-29 | Method and device for controlling cooling water shortage and computer readable storage medium |
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|---|---|---|---|---|
| JPH11290917A (en) * | 1998-04-08 | 1999-10-26 | Kawasaki Steel Corp | Hot finish rolling method of steel strip |
| KR20040005018A (en) * | 2002-07-08 | 2004-01-16 | 주식회사 포스코 | Method and apparatus for supplying cooling water considering rolled steel condition |
| JP2006272339A (en) * | 2005-03-28 | 2006-10-12 | Nisshin Steel Co Ltd | Method and device for cooling rolling roll |
| WO2008104037A1 (en) * | 2007-02-09 | 2008-09-04 | Centre De Recherches Metallurgiques Asbl-Centrum Voor De Research In De Metallurgie Vzw | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| CN101722193A (en) * | 2009-11-25 | 2010-06-09 | 南京钢铁股份有限公司 | Roll breakage protecting control method for working roll of heavy and medium plate mill |
| CN101912885A (en) * | 2010-08-11 | 2010-12-15 | 马鞍山钢铁股份有限公司 | Section mill rolled piece end bending monitoring device and method |
| CN202192104U (en) * | 2011-07-06 | 2012-04-18 | 安徽精诚铜业股份有限公司 | Electronic control system for water supply of hot rolling mill |
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2021
- 2021-10-29 CN CN202111273421.8A patent/CN114130832B/en active Active
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|---|---|---|---|---|
| JPH11290917A (en) * | 1998-04-08 | 1999-10-26 | Kawasaki Steel Corp | Hot finish rolling method of steel strip |
| KR20040005018A (en) * | 2002-07-08 | 2004-01-16 | 주식회사 포스코 | Method and apparatus for supplying cooling water considering rolled steel condition |
| JP2006272339A (en) * | 2005-03-28 | 2006-10-12 | Nisshin Steel Co Ltd | Method and device for cooling rolling roll |
| WO2008104037A1 (en) * | 2007-02-09 | 2008-09-04 | Centre De Recherches Metallurgiques Asbl-Centrum Voor De Research In De Metallurgie Vzw | Device and method for cooling rolls used for rolling in a highly turbulent environment |
| CN101722193A (en) * | 2009-11-25 | 2010-06-09 | 南京钢铁股份有限公司 | Roll breakage protecting control method for working roll of heavy and medium plate mill |
| CN101912885A (en) * | 2010-08-11 | 2010-12-15 | 马鞍山钢铁股份有限公司 | Section mill rolled piece end bending monitoring device and method |
| CN202192104U (en) * | 2011-07-06 | 2012-04-18 | 安徽精诚铜业股份有限公司 | Electronic control system for water supply of hot rolling mill |
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| CN114130832A (en) | 2022-03-04 |
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