CN114752746B - Multi-mode steel pipe rolling process - Google Patents
Multi-mode steel pipe rolling process Download PDFInfo
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- CN114752746B CN114752746B CN202210318361.5A CN202210318361A CN114752746B CN 114752746 B CN114752746 B CN 114752746B CN 202210318361 A CN202210318361 A CN 202210318361A CN 114752746 B CN114752746 B CN 114752746B
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- incoming material
- power generation
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- steel pipe
- generation device
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/52—Methods of heating with flames
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/70—Furnaces for ingots, i.e. soaking pits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a multi-mode steel pipe rolling process, which comprises the following steps: acquiring the heat temperature and the solar illumination intensity of the incoming material, judging whether the incoming material has a heat transfer condition, and judging that the solar power generation device can perform effective power generation based on the current solar illumination intensity; when the current incoming material does not have the heat transfer condition and the solar power generation device cannot effectively generate electricity, a conventional production mode is adopted, and when the current incoming material does not have the heat transfer condition and the solar power generation device can effectively generate electricity, a solar preheating mode is adopted; and when the current incoming material is judged to have the heat transfer condition and the solar power generation device can effectively generate power, adopting a composite preheating mode. And (5) heating the incoming material in the annular furnace to reach a thermal state, and then perforating the thermal state blank. Therefore, the continuous casting preheating of the tube blank can be better realized; solar energy can be better utilized; the fuel gas consumption of the annular furnace is saved by a plurality of methods, and the carbon consumption is greatly reduced.
Description
Technical Field
The invention relates to the technical field of steel pipe rolling, in particular to a multi-mode steel pipe rolling process.
Background
On the steel pipe production line, the annular furnace is one of the components commonly used in the production process, and the main function of the annular furnace is to heat the fixed-length pipe blank, so that the fixed-length pipe blank becomes a hot blank with the temperature reaching 1250 ℃ required by perforation. Wherein, the combustion medium of the annular furnace adopts mixed fuel gas or natural gas. Moreover, the prior art annular furnaces usually take the form of 1 inlet (by means of a transfer robot) for charging and 1 outlet (by means of a discharge robot) for discharging the billets heated to the rolling temperature, after which the hot billets discharged are sent to a piercing machine.
However, in the prior art, the annular furnace is mainly heated by adopting single fuel, the fine management is insufficient, the space for saving the combustion energy is limited, the carbon emission limit is not easy to control, and the control on the aspects of temperature and the like is insufficient.
Disclosure of Invention
In order to solve part or all of the technical problems in the prior art, the invention provides a multi-mode steel pipe rolling process.
The technical scheme of the invention is as follows:
the multi-mode steel pipe rolling process is applied to a steel pipe production line, the steel pipe production line is provided with an annular furnace and a solar power generation device, the annular furnace is provided with two charging inlets and one discharging outlet, the two charging inlets are respectively a cold charging port and a hot charging port, the front end of the cold charging port is provided with a cold billet feeding area, the front end of the hot charging port is provided with a roller way feeding area, a hot billet sawing device and an induction heating device are arranged on a roller way of the roller way feeding area, the solar power generation device can supply power for the induction heating device,
the steel pipe rolling process comprises the following steps:
step S1: acquiring the heat temperature and the solar illumination intensity of the incoming material through an MES production control system, judging whether the incoming material has a heat transfer condition, and judging that the solar power generation device can perform effective power generation based on the current solar illumination intensity;
step S2: when the MES production control system judges that the current incoming material does not have the hot feeding condition and the solar power generation device cannot generate electricity effectively, adopting a conventional production mode to convey the current incoming material to a cold blank feeding area, and then sequentially carrying out preheating, heating and soaking in an annular furnace to heat the incoming material to a hot state;
when the MES production control system judges that the current incoming material does not have a heat transfer condition and the solar power generation device can effectively generate power, a solar preheating mode is adopted to convey the current incoming material to a roller way feeding area, then the solar power generation device generates power by utilizing the current solar illumination intensity and drives the induction heating device to preheat the current incoming material in the roller way feeding area, and then heating and soaking are sequentially carried out in the annular furnace, so that the incoming material is heated to reach a thermal state;
when the MES production control system judges that the current incoming material has the hot feeding condition and the solar power generation device can effectively generate power, adopting a composite preheating mode to convey the current incoming material to a roller way feeding area, then, using the current solar illumination intensity by the solar power generation device to generate power, driving the induction heating device to preheat the current incoming material in the roller way feeding area, carrying out sizing, and then, sequentially carrying out heating-soaking in a ring furnace to heat the incoming material to a thermal state;
step S2: and (5) heating the incoming material in the annular furnace to reach a thermal state, and then perforating the thermal state blank.
Optionally, the hot blank sawing device of the roller table feeding area saw cuts the incoming material in the roller table feeding area to a proper length based on control information sent by an MES production control system.
Optionally, the hot charging port is provided with a temperature detection device before charging, the temperature detection device can detect the temperature of the incoming material, and the annular furnace can adjust the heating temperature of the incoming material in the annular furnace according to the temperature of the incoming material detected by the temperature detection device.
Optionally, in the roller table feeding area, the blanks after sawing are transported in a protector Wen Kouwa.
The technical scheme of the invention has the main advantages that:
the prior pipe blank for producing the steel pipe is heated completely by a gas production line, and the carbon emission gas accounts for more than 70 percent. The multi-mode steel pipe rolling process of the invention 1) can better realize continuous casting preheating of the pipe blank; 2) Solar energy can be better utilized; 3) The fuel gas consumption of the annular furnace is saved by a plurality of methods, the carbon consumption is greatly reduced, and the energy conservation and emission reduction of the production line are realized; 5) Has a certain intelligent control basis.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments 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 without limitation to the invention. In the drawings:
fig. 1 is a schematic flow chart of a multi-mode steel pipe rolling process according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The following describes in detail the technical scheme provided by the embodiment of the invention with reference to the accompanying drawings.
As shown in fig. 1, in one embodiment according to the present invention, a multi-mode steel pipe rolling process is provided, by which solar energy can be effectively utilized, fuel consumption in a ring furnace can be reduced, and at the same time, effective preheating of blanks can be achieved, which is advantageous for energy saving and emission reduction of a production line.
Specifically, the steel pipe rolling process in this embodiment is applied to the steel pipe production line, and the steel pipe production line is provided with annular furnace and solar power system, and annular furnace has two loading inlets and a discharge outlet, and two loading inlets are cold loading mouth and hot loading mouth respectively, and the front end of cold loading mouth is provided with cold base material loading district, and the front end of hot loading mouth is provided with roller table material loading district, is provided with hot base saw cutting device and induction heating device on the roller table in roller table material loading district, and solar power system can be for induction heating device power supply.
The hot blank sawing device is used for sawing blanks on the roller way, and the induction heating device is used for heating the blanks on the roller way.
The steel pipe rolling process comprises the following steps:
step S1: acquiring the heat temperature and the solar illumination intensity of the incoming material through an MES production control system, judging whether the incoming material has a heat transfer condition, and judging that the solar power generation device can perform effective power generation based on the current solar illumination intensity;
step S2: when the MES production control system judges that the current incoming material does not have the hot feeding condition and the solar power generation device cannot generate electricity effectively, adopting a conventional production mode to convey the current incoming material to a cold blank feeding area, and then sequentially carrying out preheating, heating and soaking in an annular furnace to heat the incoming material to a hot state;
when the MES production control system judges that the current incoming material does not have the heat transfer condition and the solar power generation device can effectively generate power, a solar preheating mode is adopted to convey the current incoming material to a roller way feeding area, then the solar power generation device generates power by utilizing the current solar illumination intensity and drives the induction heating device to preheat the current incoming material in the roller way feeding area, and then heating and soaking are sequentially carried out in the annular furnace, so that the incoming material is heated to reach a thermal state;
when the MES production control system judges that the current incoming material has the hot feeding condition and the solar power generation device can effectively generate power, adopting a composite preheating mode to convey the current incoming material to a roller way feeding area, then, using the current solar illumination intensity by the solar power generation device to generate power, driving an induction heating device to preheat the current incoming material in the roller way feeding area, cutting to a certain extent, and then, sequentially heating and soaking in a ring furnace to enable the incoming material to be heated to reach a thermal state;
step S2: and (5) heating the incoming material in the annular furnace to reach a thermal state, and then perforating the thermal state blank.
Optionally, the hot blank sawing device of the roller way feeding area saw cuts the incoming materials in the roller way feeding area to a proper length based on control information sent by the MES production control system.
Optionally, the temperature detection device is installed at the hot charging port before loading, and the temperature detection device can detect the temperature of incoming material, and the annular furnace can adjust the heating temperature of incoming material in the annular furnace according to the temperature of incoming material that temperature detection device detected.
Optionally, in the roller table loading area, the blanks after sawing are transported in a protector Wen Kouwa.
It will be appreciated that the annular furnace in this embodiment takes the form of 2 charge inlets and 1 discharge outlet. The cold charge port in the 2 charge inlets is used for charging of normally cold parisons and the other hot charge port is used for charging of parisons with a temperature (300-500 degrees celsius). The 1 outlet is then used for tapping of the billets heated to the rolling temperature.
The hot blank sawing device and the induction heating device are arranged on a roller way of the hot blank feeding device at the front end of the hot charging port, and the hot blank sawing device can saw incoming materials in a roller way feeding area to a proper length suitable for a perforating machine based on control information sent by an MES production control system. The long-length billet with temperature can be uncooled continuous casting billet or solar induction heating billet or billet with preheating of the billet and solar induction heating. And then, the sawed sizing blank is transmitted in the heat-insulation buckling tile.
The solar power generation device can be a solar cell panel arranged on a factory building of the steel pipe production line, and the solar power generation device can supply power for the induction heating device.
In this embodiment, three production modes may be adopted for the organization production of different working conditions: conventional production mode, solar energy preheating mode, compound preheating mode.
In the conventional production mode, the blank does not have a hot feeding condition, the solar illumination is insufficient, and solar energy cannot be effectively utilized, at the moment, the universal production mode is adopted, the fixed-length blank is conveyed to a cold blank feeding area, and the cold blank achieves a hot state in an annular furnace through preheating, heating and soaking in sequence, so that the hot state blank is perforated;
in the solar preheating mode, the blank does not have a hot feeding condition but has sufficient sunlight, at the moment, the solar sizing blank can be effectively utilized to be conveyed to a roller way feeding area, a cold blank is preheated in the roller way feeding area, and then the blank is sequentially heated and soaked in an annular furnace, so that the blank reaches a hot state and the hot blank is perforated;
in the composite preheating mode, the blank has the heat-supplying condition and the sunlight is sufficient, at the moment, the blank can be effectively preheated and solar energy can be effectively utilized, the blank with a fixed length is conveyed to a roller way feeding area, the preheated blank is preheated in the roller way feeding area, the blank is cut to a fixed length, and then the blank is sequentially heated and soaked in an annular furnace, so that the blank reaches a thermal state and the blank with the thermal state is perforated.
The MES production control system automatically judges whether solar energy is utilized or not through whether the incoming materials (long blank) have the heat temperature and the Taiyuan illuminance information, and automatically judges the production organization mode according to the 2 kinds of information.
The stability of solar energy is poor, and in the time that sunlight is abundant, utilize solar energy induction heating long length billet, the length billet is filled from hot charging port this moment, but when not having solar energy and not possessing continuous casting billet heat and changeing the operating mode time length billet from cold charging port.
In addition, the annular furnace is provided with intelligent combustion self-adaptation capability, a temperature detection device is arranged before the hot charging port is charged, the annular furnace can automatically heat the blank according to the actual charging condition, and the temperature of the discharged tube blank is ensured.
The multi-mode steel pipe rolling process in the present embodiment has the following advantages:
the multi-mode steel pipe rolling process of the embodiment 1) can better realize continuous casting and preheating of the pipe blank; 2) Solar energy can be better utilized; 3) The fuel gas consumption of the annular furnace is saved by a plurality of methods, the carbon consumption is greatly reduced, and the energy conservation and emission reduction of the production line are realized; 5) Has a certain intelligent control basis.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In this context, "front", "rear", "left", "right", "upper" and "lower" are referred to with respect to the placement state shown in the drawings.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting thereof; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A multi-mode steel pipe rolling process is characterized in that the steel pipe rolling process is applied to a steel pipe production line, the steel pipe production line is provided with an annular furnace and a solar power generation device, the annular furnace is provided with two charging inlets and a discharging outlet, the two charging inlets are a cold charging port and a hot charging port respectively, the front end of the cold charging port is provided with a cold billet charging area, the front end of the hot charging port is provided with a roller way charging area, a hot billet sawing device and an induction heating device are arranged on a roller way of the roller way charging area, the solar power generation device can supply power for the induction heating device,
the steel pipe rolling process comprises the following steps:
step S1: acquiring the heat temperature and the solar illumination intensity of the incoming material through an MES production control system, judging whether the incoming material has a heat transfer condition, and judging that the solar power generation device can perform effective power generation based on the current solar illumination intensity;
step S2: when the MES production control system judges that the current incoming material does not have the hot feeding condition and the solar power generation device cannot generate electricity effectively, adopting a conventional production mode to convey the current incoming material to a cold blank feeding area, and then sequentially carrying out preheating, heating and soaking in an annular furnace to heat the incoming material to a hot state;
when the MES production control system judges that the current incoming material does not have a heat transfer condition and the solar power generation device can effectively generate power, a solar preheating mode is adopted to convey the current incoming material to a roller way feeding area, then the solar power generation device generates power by utilizing the current solar illumination intensity and drives the induction heating device to preheat the current incoming material in the roller way feeding area, and then heating and soaking are sequentially carried out in the annular furnace, so that the incoming material is heated to reach a thermal state;
when the MES production control system judges that the current incoming material has the hot feeding condition and the solar power generation device can effectively generate power, adopting a composite preheating mode to convey the current incoming material to a roller way feeding area, then, using the current solar illumination intensity by the solar power generation device to generate power, driving the induction heating device to preheat the current incoming material in the roller way feeding area, carrying out sizing, and then, sequentially carrying out heating-soaking in a ring furnace to heat the incoming material to a thermal state;
step S2: and (5) heating the incoming material in the annular furnace to reach a thermal state, and then perforating the thermal state blank.
2. The multi-mode steel pipe rolling process of claim 1 wherein the hot blank sawing device of the roller table loading zone saw cuts incoming material in the roller table loading zone to an appropriate length based on control information sent by an MES production control system.
3. A multi-mode steel pipe rolling process according to claim 1, wherein the hot charging port is provided with a temperature detecting device before charging, the temperature detecting device is capable of detecting the temperature of the incoming material, and the annular furnace is capable of adjusting the heating temperature of the incoming material in the annular furnace according to the temperature of the incoming material detected by the temperature detecting device.
4. A multi-mode steel pipe rolling process according to claim 1, wherein in the roller table loading zone, the blanks after sawing are transported in a magazine Wen Kouwa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210318361.5A CN114752746B (en) | 2022-03-29 | 2022-03-29 | Multi-mode steel pipe rolling process |
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| CN202210318361.5A CN114752746B (en) | 2022-03-29 | 2022-03-29 | Multi-mode steel pipe rolling process |
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| CN114752746A CN114752746A (en) | 2022-07-15 |
| CN114752746B true CN114752746B (en) | 2023-07-21 |
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