CN114570770A - Equipment for preventing fire of broken strip of cold rolling mill - Google Patents
Equipment for preventing fire of broken strip of cold rolling mill Download PDFInfo
- Publication number
- CN114570770A CN114570770A CN202210039012.XA CN202210039012A CN114570770A CN 114570770 A CN114570770 A CN 114570770A CN 202210039012 A CN202210039012 A CN 202210039012A CN 114570770 A CN114570770 A CN 114570770A
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- Prior art keywords
- rolling mill
- cold rolling
- cold
- roll gap
- seconds
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- 238000005097 cold rolling Methods 0.000 title claims abstract description 36
- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 230000002265 prevention Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000004904 shortening Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- 238000005098 hot rolling Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 5
- 239000008186 active pharmaceutical agent Substances 0.000 description 3
- 230000009172 bursting Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000010731 rolling oil Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B2038/004—Measuring scale thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a device for preventing fire in cold rolling mill belt breakage, which comprises: the hot rolling mill comprises a cold rolling mill body, wherein a coiling machine is installed on the cold rolling mill body, a cold-rolled sheet is arranged on the coiling machine, the end part of the cold-rolled sheet sequentially penetrates through two sets of rolling mills and thickness gauges, the thickness gauges are installed on a bearing platform, a detection station of the thickness gauges is horizontally arranged with the cold-rolled sheet, the thickness gauges are electrically connected with a Siemens controller, and the Siemens controller is installed on the bearing platform. The equipment for preventing the ignition of the broken strip of the cold rolling mill is additionally provided with a control system, the thickness signal detected by a thickness gauge is utilized, the time of the actual broken strip triggering broken strip fault signal is shortened to 0.4 second from the original 2 seconds, the broken strip opening roll gap is changed into rapid unloading, and the time of opening the roll gap by 10mm is shortened to 2 seconds from the original 6.99 seconds; the time of the actual strip breakage triggering strip breakage fault signal is shortened, the roll gap opening speed is accelerated to reduce the roll gap material filling of the rolling mill, and the rolling mill is prevented from catching fire due to strip breakage.
Description
Technical Field
The invention relates to the field of cold rolling mills, in particular to a device for preventing fire during belt breakage of a cold rolling mill.
Background
When the cold rolling mill runs at a high speed, because the rolling oil temperature is high and the oil gas concentration is high, if a strip is suddenly broken, metal collision and strip breaking and material plugging friction can occur, so that high temperature and sparks are generated, rolling oil mist is ignited, and oil gas deflagration is caused by local overheating to cause the overall fire body to catch fire; the cold rolling mill causes fire accidents due to belt breakage, and the average rate is 2-3 per year; after the broken strip is ignited each time, cables, mechanical and electrical components in the rolling mill are damaged, much waste materials are accumulated in the rolling mill, equipment personnel repair the rolling mill and production personnel clean the rolling mill, and production can be recovered within 10 hours at least each time; and the roller is directly scrapped due to the accidental roller bursting phenomenon caused by belt breakage and ignition;
the strip breakage detection of the cold rolling mill originally utilizes tension automatic detection strip breakage and manual strip breakage to trigger a strip breakage fault signal, and then the strip breakage fault signal generates a chain reaction to stop the rolling mill and open a roll gap; about 2 seconds are needed from the actual strip breakage to the strip breakage fault signal, and the roll gap opening time is 6.99 seconds, so that material blockage is easily caused in the roll gap of the rolling mill in the time period, the rolling force is exploded, a large amount of heat is generated, and ignition is easily caused.
Disclosure of Invention
The invention provides equipment for preventing fire during belt breakage of a cold rolling mill in order to make up for market vacancy.
The invention aims to provide a device for preventing fire during strip breakage of a cold rolling mill, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an equipment that catches fire is prevented in cold rolling mill broken belt, includes:
the hot rolling mill comprises a cold rolling mill body, wherein a coiling machine is installed on the cold rolling mill body, a cold-rolled sheet is arranged on the coiling machine, the end part of the cold-rolled sheet sequentially penetrates through two sets of rolling mills and thickness gauges, the thickness gauges are installed on a bearing platform, a detection station of the thickness gauges is horizontally arranged with the cold-rolled sheet, the thickness gauges are electrically connected with a Siemens controller, and the Siemens controller is installed on the bearing platform.
Furthermore, the thickness gauge and the Siemens controller form an ignition prevention system of the cold rolling mill, and the working mode of the ignition prevention system comprises the following steps: analyzing the ignition reason, shortening the time for triggering the broken belt fault signal, reducing the opening time of a roll gap and monitoring the broken belt parameter;
analyzing the reason of fire: analyzing the reason of fire caused by the broken strip of the cold rolling mill;
b, shortening the time of triggering the belt breakage fault signal;
step C, reducing the opening time of the roll gap;
step D, monitoring belt breakage parameters: IBA is used to monitor relevant parameters when the cold rolling mill breaks.
Further, in the step B: the newly-added control system utilizes the thickness gauge to shorten the actual broken belt triggering broken belt fault signal time from the original 2 seconds to 0.4 second.
Further, in the step C: the broken belt opening roll gap is changed into rapid unloading, and the time for opening the roll gap by 10mm is reduced to 2 seconds from the original 6.99 seconds.
Compared with the prior art, the invention has the beneficial effects that: the newly-added control system utilizes the thickness signal detected by the thickness gauge to shorten the time of the actual belt breakage triggering belt breakage fault signal from the original 2 seconds to 0.4 seconds, changes the belt breakage roll gap opening into rapid unloading, and reduces the time of the roll gap opening by 10mm from the original 6.99 seconds to 2 seconds; the time of the actual strip breakage triggering strip breakage fault signal is shortened, the roll gap opening speed is accelerated to reduce the roll gap material filling of the rolling mill, and the rolling mill is prevented from catching fire due to strip breakage.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a first portion of a new broken tape automatic detection program system after improvement;
FIG. 3 is a second portion of a new broken tape automatic detection program system after improvement;
FIG. 4 is a first portion of a new fast unloading program system after a tape break;
FIG. 5 is a second portion of the new fast unloading program system after a tape break;
FIG. 6 is a graph showing the trend of about 2.00 seconds from the actual strip breakage contact to the triggering of the strip breakage failure signal before the structural improvement of the present invention;
fig. 7 shows that the time from actual tape break to tape break fault signal triggering after the improvement of the structure of the present invention is: trend plot of 0.404 seconds;
FIG. 8 is a trend graph of the rolling force OS side bursting from 81T to 247T and the DS side bursting from 82T to 250T before the improvement of the structure of the invention due to material plugging after belt breakage;
FIG. 9 is a trend chart of the rolling force OS side reduced from 187T to 132T and the rolling force DS side reduced from 185T to 167T after the structure of the invention is improved, and no material blocking exists between the roll gaps;
FIG. 10 is a graph showing the trend of 6.99 seconds for a 10mm gap before the inventive structure is improved;
FIG. 11 is a trend chart of only 2 seconds for opening a roll gap of 10mm by changing the structure of the invention into direct quick-release of broken belt failure.
In the figure: 1. a cold rolling mill body; 2. a coiler; 3. a rolling mill; 4. a thickness gauge; 5. a bearing platform; 6. a Siemens controller; 7. a stage; 8. and (5) cold rolling the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: referring to fig. 1-11, the present invention provides a technical solution: a device for preventing fire of broken strip of a cold rolling mill,
the method comprises the following steps: a cold rolling mill body 1;
install coiling machine 2 on the cold rolling mill body 1, and be provided with cold-rolled sheet 8 on the coiling machine 2, the 8 tip of cold-rolled sheet passes two sets of rolling mills 3 and thickness gauge 4 setting in proper order, and thickness gauge 4 installs on cushion cap 5 simultaneously, and thickness gauge 4's detection station and cold-rolled sheet 8 level set up, and thickness gauge 4 and siemens controller 6 electric connection, and siemens controller 6 installs on microscope carrier 7.
The second embodiment is as follows: in this embodiment, the thickness gauge 4 and the siemens controller 6 form an anti-ignition system of the cold rolling mill, and the operation mode of the anti-ignition system includes the following steps: analyzing the ignition reason, shortening the time for triggering the broken belt fault signal, reducing the opening time of a roll gap and monitoring the broken belt parameter;
step A. analysis of the cause of fire: analyzing the reason of fire caused by the broken strip of the cold rolling mill;
b, shortening the time of triggering the belt breakage fault signal;
step C, reducing the opening time of the roll gap;
step D, monitoring belt breakage parameters: IBA is used to monitor relevant parameters when the cold rolling mill breaks.
The third concrete implementation mode: this embodiment is a further limitation of the second embodiment, wherein in step B: the newly-added control system utilizes the thickness gauge 4 to shorten the actual broken belt triggering broken belt fault signal time from the original 2 seconds to 0.4 second.
The fourth concrete implementation mode: this embodiment is further limited to embodiment two wherein, in step C: the broken belt opening roll gap is changed into rapid unloading, and the time for opening the roll gap by 10mm is reduced to 2 seconds from the original 6.99 seconds.
The newly added control system utilizes the thickness signal detected by the thickness gauge 4 to shorten the time of the actual belt breakage triggering belt breakage fault signal from the original 2 seconds to 0.4 seconds, changes the belt breakage roll gap opening into rapid unloading, and reduces the time of the roll gap opening by 10mm from the original 6.99 seconds to 2 seconds; the time of the actual strip breakage triggering strip breakage fault signal is shortened, the roll gap opening speed is accelerated to reduce the roll gap material filling of the rolling mill, and the rolling mill is prevented from catching fire due to strip breakage.
As shown in fig. 6: the second line from top to bottom represents: a tendency of take-up speed, when a sudden change in take-up speed occurs, the tape is broken at that time; the fourth line is a thickness signal of the thickness gauge 4, and the broken belt is changed into-10 quickly; the lowest line is a belt breaking fault signal, and the belt breaking fault signal from actual belt breaking to triggering is as follows: 2.002 seconds.
As shown in fig. 9: the lowermost one of the threads is: the rolling force changes along the trend that the OS side is reduced to 132T from 187T, the DS side is reduced to 167T from 185T, and no material is jammed between the roll gaps.
As shown in fig. 10: the penultimate line is: roll gap position signal, opening 10mm takes 6.99 seconds.
In step B: the newly added control system utilizes the thickness gauge 4 to shorten the actual time of triggering the belt breakage fault signal from the original 2 seconds to 0.4 second by utilizing the thickness signal; the newly added control system is shown in the attached figures 2-5:
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (4)
1. The utility model provides an equipment that catches fire is prevented in cold rolling mill broken belt which characterized in that includes:
cold rolling mill body (1), install coiling machine (2) on cold rolling mill body (1), and be provided with cold-rolled sheet (8) on coiling machine (2), cold-rolled sheet (8) tip passes two sets of rolling mill (3) and calibrator (4) setting in proper order, and calibrator (4) are installed on cushion cap (5) simultaneously, and the detection station and cold-rolled sheet (8) level of calibrator (4) set up, and calibrator (4) and siemens controller (6) electric connection, and siemens controller (6) install on microscope stage (7).
2. The broken strip fire prevention device of the cold rolling mill according to claim 1, characterized in that: the thickness gauge (4) and the Siemens controller (6) form a fire prevention system of the cold rolling mill, and the working mode of the fire prevention system comprises the following steps: analyzing the ignition reason, shortening the time for triggering the broken belt fault signal, reducing the opening time of a roll gap and monitoring the broken belt parameter;
step A. analysis of the cause of fire: analyzing the reason of fire caused by the broken strip of the cold rolling mill;
b, shortening the time of triggering the belt breakage fault signal;
step C, reducing the opening time of the roll gap;
step D, monitoring belt breakage parameters: IBA is used to monitor relevant parameters when the cold rolling mill breaks.
3. The broken strip fire prevention device of the cold rolling mill according to claim 2, characterized in that: in the step B: the newly added control system utilizes the thickness gauge (4) to shorten the actual time of triggering the belt breakage fault signal from 2 seconds to 0.4 seconds.
4. The broken strip fire prevention device of the cold rolling mill according to claim 2, characterized in that: in the step C: the broken belt opening roll gap is changed into rapid unloading, and the time for opening the roll gap by 10mm is reduced to 2 seconds from the original 6.99 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210039012.XA CN114570770A (en) | 2022-01-13 | 2022-01-13 | Equipment for preventing fire of broken strip of cold rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210039012.XA CN114570770A (en) | 2022-01-13 | 2022-01-13 | Equipment for preventing fire of broken strip of cold rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114570770A true CN114570770A (en) | 2022-06-03 |
Family
ID=81769714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210039012.XA Pending CN114570770A (en) | 2022-01-13 | 2022-01-13 | Equipment for preventing fire of broken strip of cold rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114570770A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5012660A (en) * | 1989-11-29 | 1991-05-07 | Aeg Westinghouse Industrial Automation Corporation | Control system and method for compensating for speed effect in a tandem cold mill |
| CN112337982A (en) * | 2020-10-21 | 2021-02-09 | 河南中孚高精铝材有限公司 | Strip breakage protection control method of cold rolling mill |
| CN112371729A (en) * | 2020-09-11 | 2021-02-19 | 宁波宝新不锈钢有限公司 | Strip breakage protection method for Sendzimir rolling mill |
| CN113118210A (en) * | 2021-04-21 | 2021-07-16 | 新余钢铁股份有限公司 | Rolling breakage preventing system for continuous rolling of high-carbon steel and control method thereof |
-
2022
- 2022-01-13 CN CN202210039012.XA patent/CN114570770A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5012660A (en) * | 1989-11-29 | 1991-05-07 | Aeg Westinghouse Industrial Automation Corporation | Control system and method for compensating for speed effect in a tandem cold mill |
| CN112371729A (en) * | 2020-09-11 | 2021-02-19 | 宁波宝新不锈钢有限公司 | Strip breakage protection method for Sendzimir rolling mill |
| CN112337982A (en) * | 2020-10-21 | 2021-02-09 | 河南中孚高精铝材有限公司 | Strip breakage protection control method of cold rolling mill |
| CN113118210A (en) * | 2021-04-21 | 2021-07-16 | 新余钢铁股份有限公司 | Rolling breakage preventing system for continuous rolling of high-carbon steel and control method thereof |
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