Multi-mode steel pipe rolling process

A multi-mode, steel pipe technology, applied in the field of steel pipe rolling, can solve the problems of difficult carbon emission limit control, limited combustion and energy saving space, insufficient refined management, etc. The effect of using

Pending Publication Date: 2022-07-15
TAIYUAN HEAVY IND TECH IND CO LTD
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AI-Extracted Technical Summary

Problems solved by technology

[0003] However, the heating of the annular furnace in the prior art mainly uses a single fuel, the fine management is not enough, the space for co...
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Method used

In addition, annular furnace possesses intelligent combustion self-adaptive ability, and temperature detection device is installed before hot charging port charging, and annular furnace can carry out the billet temperature heating of automation according to the actual situation of charging, guarantees the discharge pipe blank temperature.
The multi-mode steel pipe rolling p...
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Abstract

The invention discloses a multi-mode steel pipe rolling process which comprises the following steps: acquiring the heat temperature and solar illumination intensity of an incoming material, judging whether the incoming material has a heat delivery condition or not, and judging that a solar power generation device can perform effective power generation based on the current solar illumination intensity; a conventional production mode is adopted when it is judged that the current incoming material does not have the hot delivery condition and the solar power generation device cannot effectively generate power, and a solar preheating mode is adopted when it is judged that the current incoming material does not have the hot delivery condition and the solar power generation device can effectively generate power; and when it is judged that the current supplied material meets the hot delivery condition and the solar power generation device can effectively generate power, a composite preheating mode is adopted. After incoming materials are heated in the annular furnace to be in a hot state, the hot-state blank is subjected to perforation treatment. Therefore, the continuous casting preheating of the tube blank can be better realized; solar energy can be better utilized; the gas consumption of the annular furnace is saved by multiple methods, and the carbon consumption is greatly reduced.

Application Domain

Batteries circuit arrangementsFurnace types +4

Technology Topic

Steel tubeProcess engineering +10

Image

  • Multi-mode steel pipe rolling process

Examples

  • Experimental program(1)

Example Embodiment

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0021] The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0022] like figure 1 As shown, in one embodiment according to the present invention, a multi-mode steel pipe rolling process is provided, through which solar energy can be effectively utilized, fuel consumption in the annular furnace can be reduced, and the billet can be effectively Preheating the ground is conducive to energy saving and emission reduction of the production line.
[0023] Specifically, the steel pipe rolling process in this embodiment 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 has two charging inlets and one discharging outlet, and the two charging inlets are cooling The charging port and the 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 table feeding area, and the roller table of the roller table feeding area is provided with a hot billet sawing device. And the induction heating device, the solar power generation device can power the induction heating device.
[0024] Among them, the hot blank sawing device is used for sawing the blank on the roller table, and the induction heating device is used for heating the blank on the roller table.
[0025] The steel pipe rolling process includes:
[0026] Step S1: Obtaining the thermal temperature and solar light intensity of the incoming material through the MES production control system, judging whether the incoming material has the conditions for heat delivery, and judging that the solar power generation device can generate effective power based on the current solar light intensity;
[0027] Step S2: When the MES production control system judges that the current incoming material does not have the conditions for heat transfer and the solar power generation device cannot effectively generate electricity, the conventional production mode is adopted, and the current incoming material is transported to the cold billet loading area, and then, Preheating-heating-soaking is carried out in sequence in the annular furnace, so that the incoming material is heated to a hot state;
[0028] When the MES production control system judges that the current incoming material does not have the conditions for heat transfer and the solar power generation device can generate electricity effectively, it adopts the solar preheating mode to transport the current incoming material to the roller loading area. After that, the solar power generation device Use the current solar light intensity to generate electricity, and drive the induction heating device to preheat the current incoming material in the feeding area of ​​the roller table, and then perform heating and soaking in the annular furnace in sequence, so that the incoming material is heated to a hot state;
[0029] When the MES production control system judges that the current incoming material has the conditions for heat transfer and the solar power generation device can generate electricity effectively, it adopts the composite preheating mode to transport the current incoming material to the roller loading area. After that, the solar power generation device uses The current solar light intensity is used to generate electricity, and the induction heating device is driven to preheat the current incoming material in the feeding area of ​​the roller table, and cut to size, and then heat and soak in sequence in the annular furnace, so that the incoming material is heated to hot state;
[0030] Step S2: After the incoming material is heated in the annular furnace to reach a hot state, the hot state blank is subjected to perforation treatment.
[0031] Optionally, the hot blank sawing device in the loading area of ​​the roller table saws the incoming material in the loading area of ​​the roller table to an appropriate length based on the control information sent by the MES production control system.
[0032] Optionally, the hot charging port is equipped 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 temperature of the incoming material in the annular furnace according to the temperature of the incoming material detected by the temperature detection device. heating temperature.
[0033] Optionally, in the loading area of ​​the roller table, the ruler blanks after sawing are transported in the heat-insulating buckle tile.
[0034] It can be understood that the annular furnace in this embodiment adopts the form of two charging inlets and one discharging outlet. 2 charging inlets, the cold charging port is used for the charging of usually cold cut-to-length blanks, and the other hot charging port is used for the charging of cut-to-length blanks with a temperature (300-500 degrees Celsius). This one outlet is used for discharging the billet heated to the rolling temperature.
[0035] The hot billet sawing device and induction heating device are installed on the roller table of the hot billet at the front end of the hot charging port. The hot billet sawing device can saw the incoming material in the feeding area of ​​the roller table based on the control information sent by the MES production control system. to the appropriate length for the punch. Among them, the long-length billet with temperature can be an uncooled continuous casting billet or a billet heated by solar induction heating or a billet with preheating of the billet plus solar induction heating. After that, the cut-to-length billets are sawn and transported in the thermal insulation buckle.
[0036] The solar power generation device can be a solar panel installed on the workshop of the steel pipe production line, and the solar power generation device can supply power to the induction heating device.
[0037] In this embodiment, three production modes can be used to organize production for different working conditions: conventional production mode, solar preheating mode, and composite preheating mode.
[0038] In the conventional production mode, the billet does not have the conditions for heat transfer and the solar energy cannot be effectively utilized due to insufficient sunlight. At this time, the general production mode is adopted. The fixed-length billet is transported to the cold billet loading area, and the cold billet is sequentially preheated in the ring furnace. - Heating - Soaking the billet to a hot state, and the hot billet is perforated;
[0039] In the solar preheating mode, the billets do not have the conditions for heat transfer but the sunlight is sufficient. At this time, the fixed-length billets can be transported to the loading area of ​​the roller table by effectively using the solar energy. Heating-soaking is carried out to realize the hot state of the blank and the perforation of the hot blank;
[0040] In the composite preheating mode, the billet has the conditions for hot feeding and sufficient sunlight. At this time, the billet preheating and solar energy can be effectively used, and the fixed-length billet is transported to the loading area of ​​the roller table, and the preheated billet is preheated in the loading area of ​​the roller table. Cut to length, and then sequentially heat and soak in the annular furnace to achieve the hot state of the billet and the perforation of the hot billet.
[0041]MES production control system automatically judges whether to use solar energy according to whether the incoming material (long-length billet) has thermal temperature and Taiyuan illumination information, and automatically judges the production organization mode according to the above two kinds of information.
[0042] The stability of solar energy is poor. In the time of abundant sunlight, the long-length billet is heated by solar energy induction. At this time, the fixed-length billet is charged from the hot charging port. However, when there is no solar energy and no continuous casting billet thermal transfer In working conditions, the fixed-length billets are charged from the cold charging port.
[0043] In addition, the annular furnace has the ability of intelligent combustion self-adaptation, and a temperature detection device is installed before the hot charging port is charged.
[0044] The multi-mode steel pipe rolling process in this embodiment has the following advantages:
[0045] The multi-mode steel pipe rolling process of this embodiment, 1) can better realize the preheating of continuous casting of pipe blanks; 2) can make better use of solar energy; 3) save the gas consumption of the annular furnace by multiple methods, and greatly reduce the carbon consumption , which is conducive to the realization of energy saving and emission reduction of the production line; 5) It has a certain basis for intelligent control.

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