CN111842822A - Continuous casting sector section pressure control process - Google Patents
Continuous casting sector section pressure control process Download PDFInfo
- Publication number
- CN111842822A CN111842822A CN202010741209.9A CN202010741209A CN111842822A CN 111842822 A CN111842822 A CN 111842822A CN 202010741209 A CN202010741209 A CN 202010741209A CN 111842822 A CN111842822 A CN 111842822A
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- section
- roller
- pressure
- oil pipe
- fan
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
Abstract
The invention discloses a continuous casting sector section pressure control process, which comprises a sector section, a section hydraulic cylinder, a section pressure relay, a driving roller, a roller hydraulic cylinder, a driving roller pressure relay and a controller, and is characterized in that: the fan-shaped section is fixed on fan-shaped section fixed bolster, fan-shaped section is connected with section pneumatic cylinder drive, the section pneumatic cylinder is connected with section oil pipe, be equipped with section pressure relay on the section oil pipe, be equipped with the drive roller in the fan-shaped section, the drive roller is connected with roller pneumatic cylinder drive, roller pneumatic cylinder is connected with roller oil pipe, be equipped with drive roller pressure relay on the roller oil pipe, section pressure relay and drive roller pressure relay are connected with controller transmission respectively, with do not being equipped with the overflow valve in proper order on roller oil pipe and the section oil pipe, the hand valve, check valve and switching-over valve, and fix respectively on the valve platform support. The invention has the advantages that the pressure of the oil pipe of the sector section of the continuous casting machine is monitored in real time, and the alarm is sent immediately once the field pressure system is abnormal, so that the quality of the casting blank and the stable operation of production are ensured.
Description
Technical Field
The invention relates to the technical field of continuous casting, in particular to a continuous casting fan-shaped section pressure control process.
Background
Since the country has been built, China's steel industry and technology have drawn attention, but in the development process of marketization and industrialization, the steel industry is the most important of basic industry, and compared with the international advanced level, the gap between the product quality, the product structure, the process technology equipment, the technical and economic indexes and the management is larger. The production of sheet steel strip is one of the important topics for the development of the steel industry. The strip is hot-rolled by a deep drawing hot-rolled steel plate, a corrosion-resistant high-strength hot-rolled steel plate, a high-strength and ultrahigh-strength steel plate with excellent formability, a hot-dip galvanized steel plate and an ultra-fine grain high-strength steel plate. And in the cold rolling aspect, the sheet products with high technical content such as cold-rolled sheets, cold-rolled silicon steel sheets, coating plates, cold-rolled stainless steel and the like are available.
Hot rolled steel strip is one of the important steel categories, and has an important influence on the technical progress and economic benefits of the whole steel industry. The yield of hot rolled strip steel in developed countries accounts for more than 50% of the market, and the hot rolled strip steel is in the leading position in the international market all the time. In recent years, the development of the steel industry in China is rapid, the market share is increased year by year, a certain gap is still kept between the steel industry and the foreign advanced level, and meanwhile, steel products with high added values are few.
The sector section in the metallurgical industry is an important component of a continuous casting machine and is mainly characterized in that a horizontal output steel billet is formed by vertical pouring. The top is an integral section which comprises a crystallizer and a foot roller and is used for forming a billet shell by a billet, the billet shell is dragged to run downwards by a dummy bar through vibration and enters a vertical section through the protection of the foot roller, the thickness of the billet shell is increased by protecting the billet shell, the billet shell begins to be bent after entering a bending section, and the billet shell is called an arc section at this moment. Wherein they are arc segments consisting of a whole set of roller table segments of one segment. And (4) discharging the arc-shaped section, enabling liquid in the blank shell to be not solidified, enabling the blank shell to enter a straightening roller to start straightening, and enabling all the liquid to be solidified and to move to the horizontal section to continue cooling. The whole fan-shaped section system consists of a plurality of groups of driving rollers and fan-shaped sections, and in the production process, sufficient and stable pressure is needed for shaping the casting blank and driving the casting blank to be output backwards.
Due to severe environments such as high temperature and humidity in the field, a plurality of hydraulic oil pipes often have the phenomena of pipe burst, oil leakage and the like, so that pressure in a certain section is insufficient, if the pressure cannot be found in time, the pressure can affect the whole hydraulic system, and although the pressure is displayed in the field, the real-time monitoring cannot be realized. Once the pressure system is abnormal, cracks and bulging can occur on the surface of the casting blank, and the quality of the casting blank is influenced. In addition, because the casting blank deforms, the output resistance is increased, a motor is burnt, a driving roller and a fan-shaped section are damaged, the shutdown accident is caused, the production is influenced, and meanwhile, the maintenance cost and the workload of workers are increased.
Therefore, the research and development of the continuous casting sector pressure control process has certain research significance
Disclosure of Invention
The invention aims to provide a continuous casting sector pressure control process, which has the advantages of monitoring the pressure of an oil pipe of a sector section of a continuous casting machine in real time, immediately giving an alarm once a site pressure system is abnormal, ensuring the quality of a casting blank and stable production, and solving the problems that a plurality of hydraulic oil pipes often have the phenomena of pipe burst, oil leakage and the like due to the severe environments of high temperature, humidity and the like on site, so that the pressure of a certain section is insufficient, if the pressure cannot be found in time, the pressure can be applied to the whole hydraulic system, and the pressure display on site cannot realize the real-time monitoring. Once the pressure system is abnormal, cracks and bulging can occur on the surface of the casting blank, and the quality of the casting blank is influenced. In addition, because the casting blank deforms, the output resistance is increased, a motor is burnt, a driving roller and a fan-shaped section are damaged, the shutdown accident is caused, the production is influenced, and meanwhile, the maintenance cost and the workload of workers are increased.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a fan-shaped section accuse pressure technology of continuous casting, includes fan-shaped section, section pneumatic cylinder, section pressure relay, drive roller, roller pneumatic cylinder, drive roller pressure relay and controller, its characterized in that: the fan-shaped section is fixed on fan-shaped section fixed bolster, and fan-shaped section is connected with section pneumatic cylinder drive, and section pneumatic cylinder and section oil piping connection are equipped with section pressure relay on the section oil pipe, are equipped with the drive roller in the fan-shaped section, and the drive roller is connected with roller pneumatic cylinder drive, and the roller pneumatic cylinder is connected with roller oil piping, is equipped with drive roller pressure relay on the roller oil piping.
Preferably, the section pressure relay and the driving roller pressure relay are respectively in transmission connection with the controller.
Preferably, the roller oil pipe and the section oil pipe are respectively and sequentially provided with an overflow valve, a manual valve, a one-way valve and a reversing valve, and are respectively fixed on the valve table bracket.
Preferably, the driving roller pressure relay and the section pressure relay on the roller oil pipe and the section oil pipe are set with low-pressure and high-pressure alarm values.
Compared with the prior art, the invention has the beneficial effects that:
1. the production of casting blanks is kept by supplying pressure to a field driving roller and a sector section, and the driving roller pressure relay and the sector pressure relay are respectively arranged on a driving roller of a valve table and a roller oil pipe and a sector oil pipe of the sector section and are used for detecting the pressure values of the field driving roller and the sector section; the roll oil pipe and the section oil pipe are respectively and sequentially provided with an overflow valve, a manual valve, a one-way valve and a reversing valve, and are respectively fixed on the valve stand bracket, if the oil pressure supplied by the hydraulic station is greater than a field set value, the overflow valve can discharge the excess pressure and return the excess pressure to the hydraulic station, so that the oil pipe burst caused by overlarge pressure on the field is prevented; if the situation such as oil leakage occurs due to the burst of the oil pipe on site, the manual valve can prevent the oil leakage from releasing pressure; the one-way valve enables the hydraulic oil to flow towards a fixed direction, so that the backflow phenomenon is avoided;
2. the driving roller pressure relay and the segment pressure relay on the roller oil pipe and the segment oil pipe are set with low-pressure and high-pressure alarm values, once the site pressure system is abnormal, signals are transmitted to the controller and an alarm is given out, related personnel can timely check the equipment, the equipment is favorable for monitoring the pressure of the sector oil pipe of the continuous casting machine in real time, and the quality of casting blanks and the stable operation of production are guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a technical scheme of a continuous casting sector pressure control process
The utility model provides a fan-shaped section accuse pressure technology of continuous casting, includes fan-shaped section, section pneumatic cylinder, section pressure relay, drive roller, roller pneumatic cylinder, drive roller pressure relay and controller, its characterized in that: the segment section is fixed on a segment section fixing support, the segment section is in driving connection with a segment hydraulic cylinder, the segment hydraulic cylinder is connected with a segment oil pipe, a segment pressure relay is arranged on the segment oil pipe, a driving roller is arranged in the segment section, the driving roller is in driving connection with a roller hydraulic cylinder, the roller hydraulic cylinder is connected with a roller oil pipe, an overflow valve, a manual valve, a one-way valve and a reversing valve are sequentially arranged on the roller oil pipe and the segment oil pipe and are respectively fixed on a valve stand support, and if the oil pressure supplied by a hydraulic station is larger than a field set value, the overflow valve can unload the excess pressure to return to the hydraulic station, so that the oil pipe burst caused by; if the situation such as oil leakage occurs due to the burst of the oil pipe on site, the manual valve can prevent the oil leakage from releasing pressure; the one-way valve enables the hydraulic oil to flow towards a fixed direction, and the backflow phenomenon is avoided.
Be equipped with drive roller pressure relay on the roller oil pipe, drive roller pressure relay and section pressure relay on roller oil pipe and the section oil pipe all set for low pressure and high pressure alarm value, in case the field pressure system is unusual, signal transmission gives the controller, and send the warning, relevant personnel just can be in time check out set, it is favorable to carrying out real time monitoring to conticaster fan-shaped section oil pipe pressure, the steady operation of the quality of casting blank and production has been guaranteed, drive roller pressure relay and section pressure relay install respectively on the roller oil pipe and the section oil pipe of the drive roller of valve platform and fan-shaped section, a pressure value for detecting field drive roller and fan-shaped section, section pressure relay and drive roller pressure relay respectively with controller transmission connection.
The working principle is as follows: the production of casting blanks is kept by supplying pressure to a field driving roller and a sector section, and the driving roller pressure relay and the sector pressure relay are respectively arranged on a driving roller of a valve table and a roller oil pipe and a sector oil pipe of the sector section and are used for detecting the pressure values of the field driving roller and the sector section; the roll oil pipe and the section oil pipe are respectively and sequentially provided with an overflow valve, a manual valve, a one-way valve and a reversing valve, and are respectively fixed on the valve stand bracket, if the oil pressure supplied by the hydraulic station is greater than a field set value, the overflow valve can discharge the excess pressure and return the excess pressure to the hydraulic station, so that the oil pipe burst caused by overlarge pressure on the field is prevented; if the situation such as oil leakage occurs due to the burst of the oil pipe on site, the manual valve can prevent the oil leakage from releasing pressure; the check valve enables hydraulic oil to flow in a fixed direction, backflow is avoided, low-pressure and high-pressure alarm values are set for driving roller pressure relays and section pressure relays on the roller oil pipe and the section oil pipe, once a site pressure system is abnormal, signals are transmitted to the controller, an alarm is given out, relevant personnel can timely check the equipment, real-time monitoring on the pressure of the oil pipe of the fan-shaped section of the continuous casting machine is facilitated, and quality of casting blanks and stable operation of production are guaranteed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides a fan-shaped section accuse pressure technology of continuous casting, includes fan-shaped section, section pneumatic cylinder, section pressure relay, drive roller, roller pneumatic cylinder, drive roller pressure relay and controller, its characterized in that: the fan-shaped section is fixed on fan-shaped section fixed bolster, and fan-shaped section is connected with section pneumatic cylinder drive, and section pneumatic cylinder and section oil piping connection are equipped with section pressure relay on the section oil pipe, are equipped with the drive roller in the fan-shaped section, and the drive roller is connected with roller pneumatic cylinder drive, and the roller pneumatic cylinder is connected with roller oil piping, is equipped with drive roller pressure relay on the roller oil piping.
2. The continuous casting segment pressure control process according to claim 1, wherein: and the section pressure relay and the driving roller pressure relay are respectively in transmission connection with the controller.
3. The continuous casting segment pressure control process according to claim 1, wherein: the roller oil pipe and the segment oil pipe are respectively provided with an overflow valve, a manual valve, a one-way valve and a reversing valve in sequence, and are respectively fixed on the valve platform bracket.
4. The continuous casting segment pressure control process according to claim 1, wherein: the driving roller pressure relay and the section pressure relay on the roller oil pipe and the section oil pipe are set with low-pressure and high-pressure alarm values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010741209.9A CN111842822A (en) | 2020-07-29 | 2020-07-29 | Continuous casting sector section pressure control process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010741209.9A CN111842822A (en) | 2020-07-29 | 2020-07-29 | Continuous casting sector section pressure control process |
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| Publication Number | Publication Date |
|---|---|
| CN111842822A true CN111842822A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010741209.9A Pending CN111842822A (en) | 2020-07-29 | 2020-07-29 | Continuous casting sector section pressure control process |
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| CN (1) | CN111842822A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140082514A (en) * | 2012-12-24 | 2014-07-02 | 주식회사 포스코 | Method for controlling strand diriven roll pressure of continuous casting line |
| CN104384458A (en) * | 2014-11-17 | 2015-03-04 | 马钢(集团)控股有限公司 | Method for detecting internal leakage of hydraulic cylinders of CSP (compact strip production) continuous casting segments |
| CN206716991U (en) * | 2017-05-19 | 2017-12-08 | 唐山港陆钢铁有限公司 | Fan-shaped sections of slab continuous pressure alarm system |
| CN108194447A (en) * | 2018-03-30 | 2018-06-22 | 宝钢工程技术集团有限公司 | The hydraulic system controlled for fan-shaped section under slab continuous casting weight |
| CN109434053A (en) * | 2018-11-21 | 2019-03-08 | 中冶南方连铸技术工程有限责任公司 | The big pressure fan-shaped section of sheet billet continuous casting |
| CN110394434A (en) * | 2019-08-06 | 2019-11-01 | 北京首钢国际工程技术有限公司 | A kind of big pressure rolling mill screwdown roller hydraulic control valve platform of continuous casting billet |
-
2020
- 2020-07-29 CN CN202010741209.9A patent/CN111842822A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140082514A (en) * | 2012-12-24 | 2014-07-02 | 주식회사 포스코 | Method for controlling strand diriven roll pressure of continuous casting line |
| CN104384458A (en) * | 2014-11-17 | 2015-03-04 | 马钢(集团)控股有限公司 | Method for detecting internal leakage of hydraulic cylinders of CSP (compact strip production) continuous casting segments |
| CN206716991U (en) * | 2017-05-19 | 2017-12-08 | 唐山港陆钢铁有限公司 | Fan-shaped sections of slab continuous pressure alarm system |
| CN108194447A (en) * | 2018-03-30 | 2018-06-22 | 宝钢工程技术集团有限公司 | The hydraulic system controlled for fan-shaped section under slab continuous casting weight |
| CN109434053A (en) * | 2018-11-21 | 2019-03-08 | 中冶南方连铸技术工程有限责任公司 | The big pressure fan-shaped section of sheet billet continuous casting |
| CN110394434A (en) * | 2019-08-06 | 2019-11-01 | 北京首钢国际工程技术有限公司 | A kind of big pressure rolling mill screwdown roller hydraulic control valve platform of continuous casting billet |
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Application publication date: 20201030 |
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| RJ01 | Rejection of invention patent application after publication |