CN211071288U - Electromagnetic concurrent heating device for hot-rolled pierced billet - Google Patents
Electromagnetic concurrent heating device for hot-rolled pierced billet Download PDFInfo
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- CN211071288U CN211071288U CN202021073044.4U CN202021073044U CN211071288U CN 211071288 U CN211071288 U CN 211071288U CN 202021073044 U CN202021073044 U CN 202021073044U CN 211071288 U CN211071288 U CN 211071288U
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Abstract
The utility model provides an electromagnetic heat supplementing device for hot rolling pierced billet, which comprises a heating system, a 1# temperature measuring instrument, a 2# temperature measuring instrument and a conveying roller bed; the conveying roller way is used for conveying pierced billets, and the heating system is used for heating pierced billets; the 1# thermometer is located in front of the heating system, the 2# thermometer is located behind the heating system, and the stretch reducer is arranged behind the 2# thermometer. The electromagnetic heat supplementing device for the hot rolling pierced billet of the utility model reheats the pierced billet coming out of the pipe removing machine so as to meet the temperature requirement of the stretch reducing machine; meanwhile, the electromagnetic heat supplementing device replaces a reheating furnace, the occupied area is small, natural gas is replaced by electric energy, energy is saved, pollutant emission is reduced, the quality of the steel pipe is improved, and higher benefit is created; the structure is reasonable, and the use is convenient; the induction coil can be effectively prevented from being damaged by the irregular blank; high stability, wide application range, high heating efficiency and capability of rapidly heating to the temperature of the pierced billet required by the stretch-reducing mill.
Description
Technical Field
The utility model relates to a pierced billet reheats technical field, especially relates to a hot rolling pierced billet electromagnetism concurrent heating device.
Background
The electromagnetic heat compensation device is also called as a steel pipe on-line temperature raising heating furnace, and the heating mode is continuous heating. The sizing process of the stretch reducing mill is used as the last metal thermal deformation process in the production line of the hot-rolled seamless steel tube, the heating temperature has a crucial influence on the quality of the steel tube, and the quality of the steel tube is seriously influenced because the temperature of the tube blank coming out of the heating furnace before reaching the stretch reducing mill through the thermal deformation process is lower. Based on the above, an electromagnetic heat supplementing device is added in front of the stretch reducing mill to reheat the pierced billet from the tube removing mill so as to meet the temperature requirement of the stretch reducing mill. Meanwhile, the electromagnetic heat supplementing device replaces a reheating furnace, the occupied area is small, natural gas is replaced by electric energy, energy is saved, pollutant emission is reduced, the quality of the steel pipe is improved, and higher benefit is created.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects, the utility model aims to provide an electromagnetic heat supplementing device for hot rolling pierced billet, which reheats the pierced billet coming out of the pipe removing machine so as to meet the temperature requirement of the stretch reducing machine; meanwhile, the electromagnetic heat supplementing device replaces a reheating furnace, the occupied area is small, natural gas is replaced by electric energy, energy is saved, pollutant emission is reduced, the quality of the steel pipe is improved, and higher benefit is created; the structure is reasonable, and the use is convenient; the induction coil can be effectively prevented from being damaged by the irregular blank; high stability, wide application range, high heating efficiency and capability of rapidly heating to the temperature of the pierced billet required by the stretch-reducing mill.
In order to achieve the purpose, the utility model provides an electromagnetic heat compensation device for hot rolling pierced billet, which comprises a heating system, a 1# temperature measuring instrument, a 2# temperature measuring instrument and a conveying roller bed;
the conveying roller way is used for conveying pierced billets, and the heating system is used for heating pierced billets; the 1# thermodetector is positioned in front of the heating system and is used for measuring the feeding temperature; the 2# temperature measuring instrument is positioned behind the heating system and used for measuring the discharging temperature; a tension reducer is arranged behind the 2# thermodetector;
an inlet guide sleeve is arranged on the heating unit positioned at the foremost end of the heating system, and the inlet guide sleeve is of a conical barrel structure.
Preferably, the heating system comprises 4 heating units arranged at equal intervals;
the conveying roller way comprises a front-end conveying roller, a plurality of heating conveying rollers and a tail-end conveying roller;
the heating conveyor roller 1 and the heating units are alternately arranged in sequence, wherein the number of the heating conveyor rollers is 5.
Furthermore, each heating unit comprises a 1000KW intermediate frequency power supply with an inductor with the length of 800-1000 mm.
Further, each heating unit is provided with a power interface, and the power interface is connected with the control cabinet through a cable.
Further, a 1# thermometer is arranged at the front part of the heating conveying roller at the foremost end, and a front-end conveying roller is arranged at the front end of the 1# thermometer;
and a 2# thermometer is arranged at the rear part of the heating conveying roller at the rearmost end, a tail end conveying roller is arranged at the rear end of the 2# thermometer, and the pierced billet is conveyed to the stretch reducer by the tail end conveying roller.
Further, the heating system can heat the pierced billet to be not lower than 171 ℃.
The utility model provides an electromagnetic heat supplementing device for hot rolling pierced billets, which reheats pierced billets coming out of a pipe removing machine so as to meet the temperature requirement of a stretch reducing machine; meanwhile, the electromagnetic heat supplementing device replaces a reheating furnace, the occupied area is small, natural gas is replaced by electric energy, energy is saved, pollutant emission is reduced, the quality of the steel pipe is improved, and higher benefit is created; the structure is reasonable, and the use is convenient; the induction coil can be effectively prevented from being damaged by the irregular blank; high stability, wide application range, high heating efficiency and capability of rapidly heating to the temperature of the pierced billet required by the stretch-reducing mill.
Drawings
FIG. 1 is a schematic structural view of the electromagnetic hot compensating device for hot rolled pierced billets of the present invention;
FIG. 2 is a side view of the electromagnetic hot compensating device for hot rolled pierced billets of the present invention;
FIG. 3 is a schematic view of the structure of the heating unit;
1-heating conveying roller, 2-1 # thermodetector, 3-inlet guide sleeve, 4-heating unit, 5-pierced billet, 6-2 # thermodetector, 7-stretch reducer, 8-control cabinet, 9-cable, 10-front-end conveying roller and 11-tail-end conveying roller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Embodiment 1 an electromagnetic heat-compensating device for hot-rolled pierced billet
Referring to fig. 1 to 3, the utility model provides a hot rolling pierced billet electromagnetism concurrent heating device, including heating system, 1# thermoscope 2, 2# thermoscope 6 and rollgang. The rollgang is used for conveying pierced billets 5, and the heating system is used for heating pierced billets 5.
The 1# thermodetector is positioned in front of the heating system and is used for measuring the feeding temperature; and the 2# temperature measuring instrument is positioned behind the heating system and used for measuring the discharging temperature.
The rollgang comprises a front conveyor roll 10, a plurality of heating conveyor rolls 1 and a tail conveyor roll 11.
The heating system comprises 4 equally spaced heating units 4. The heating conveyor roller 1 and the heating units 4 are alternately arranged in this order, wherein 5 heating conveyor rollers 1 are provided.
An inlet guide sleeve 3 is arranged on a heating unit 4 positioned at the foremost end of the heating system, the inlet guide sleeve 3 is of a conical barrel structure, and the arrangement of the inlet guide sleeve 3 can effectively prevent irregular blanks from crashing the induction coil.
The front part of the heating conveying roller 1 positioned at the foremost end is provided with a 1# thermodetector, and the front end of the 1# thermodetector is provided with a front conveying roller 10;
and a 2# thermometer is arranged at the rear part of the heating conveying roller 1 positioned at the rearmost end, a tail end conveying roller 11 is arranged at the rear end of the 2# thermometer, and the tail end conveying roller 11 conveys the pierced billet 5 to the stretch reducer 7.
Each heating unit 4 is connected to a control cabinet 8 by a cable 9.
Each heating unit 4 comprises a 1000KW intermediate frequency power supply with an inductor with the length of 800-1000 mm.
Each heating unit 4 is provided with a power interface which is connected with a control cabinet 8 through a cable.
The equipment power of each heating unit 4 is small, the equipment stability is high, the power of each power supply is independently adjustable, the frequency design can be adjusted according to the specification of the steel pipe, the application range is wide, and the equipment heating efficiency is high.
The heating system can heat the pierced billet 5 to a temperature of not less than 171 ℃.
The device can control parameters such as the temperature and the speed of a steel pipe in operation through a human-computer interface, display the parameters such as the frequency and the power of a power supply, the heating temperature and the power distribution of the steel pipe, record various state parameters of the steel pipe such as the temperature, the speed, the diameter, the wall thickness and the batch number after heating, and regularly send the parameters to a management layer, various technical measures and selected equipment are safe and reliable, the technology is advanced, the automation level is high, the device has high control precision and high reliability, the manufacturing process is mature, the operation is proved to be safe and stable through use practices, the equipment has a perfect protection system, the layout is reasonable, the operation management is convenient, the efficiency is high, the energy is saved, the economic performance is high, various pipelines (water and gas) are arranged orderly, and a proper fastening device is added, so that the device accords with relevant national regulations and standards, and is suitable for seamless steel pipes for low-medium-pressure boilers with the specification of phi 32-159 × 3.0.0-20 × 6000-6000 mm, seamless steel pipes for structures, seamless steel pipes for transporting fluids, cracking steel pipes for petroleum pipes and the like.
The utility model provides a hot rolling pierced billet electromagnetism concurrent heating device sets up one set of pierced billet electromagnetism concurrent heating device before reducing machine for the pierced billet heating after will equalizing or sizing to the rolling required temperature of reducing machine. The automatic feeding device comprises a 1# temperature measuring instrument (used for detecting the incoming material temperature), a heating system, a 2# temperature measuring instrument (used for detecting the final heating temperature) and a conveying roller way. Meanwhile, a row of roller ways are arranged between each heating unit and in front and back for conveying pierced billets. The device is used for reheating the pierced billet before the stretch reducer in the hot-rolled seamless steel pipe, has remarkable advantages, and can meet the requirements of the production process on the basis of reasonable process design.
The utility model provides an electromagnetic heat supplementing device for hot rolling pierced billets, which reheats pierced billets coming out of a pipe removing machine so as to meet the temperature requirement of a stretch reducing machine; meanwhile, the electromagnetic heat supplementing device replaces a reheating furnace, the occupied area is small, natural gas is replaced by electric energy, energy is saved, pollutant emission is reduced, the quality of the steel pipe is improved, and higher benefit is created; the structure is reasonable, and the use is convenient; the induction coil can be effectively prevented from being damaged by the irregular blank; high stability, wide application range, high heating efficiency and capability of rapidly heating to the temperature of the pierced billet required by the stretch-reducing mill.
Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.
Claims (6)
1. The electromagnetic heat supplementing device for the hot-rolled pierced billet is characterized by comprising a heating system, a 1# temperature measuring instrument (2), a 2# temperature measuring instrument (6) and a conveying roller way;
the conveying roller way is used for conveying pierced billets (5), and the heating system is used for heating the pierced billets (5); the 1# thermodetector (2) is positioned in front of the heating system and is used for measuring the feeding temperature; the 2# temperature measuring instrument (6) is positioned behind the heating system and used for measuring the discharging temperature; a tension reducer (7) is arranged behind the 2# thermodetector (6);
an inlet guide sleeve (3) is arranged on a heating unit (4) positioned at the foremost end of the heating system, and the inlet guide sleeve (3) is of a conical barrel structure.
2. The electromagnetic hot supplementary heating device for hot rolled pierced billets as claimed in claim 1, characterised in that said heating system comprises 4 heating units (4) arranged at equal intervals;
the conveying roller way comprises a front-end conveying roller (10), a plurality of heating conveying rollers (1) and a tail-end conveying roller (11);
the heating conveying rollers (1) and the heating units (4) are alternately arranged in sequence, wherein 5 heating conveying rollers (1) are arranged.
3. The electromagnetic hot patching device of the hot rolled pierced billet according to claim 2, characterized in that each heating unit (4) comprises a 1000KW intermediate frequency power supply with an inductor 800-1000 mm long.
4. The electromagnetic hot supplementary heating device for hot rolled pierced billets as claimed in claim 2, characterised in that each heating unit (4) is provided with a power interface and the interface is connected to the control cabinet (8) through a cable (9).
5. The electromagnetic hot-rolled pierced billet concurrent heating device according to claim 2, wherein a 1# temperature measuring instrument (2) is arranged at the front part of the heating conveying roller (1) at the most front end, and a front end conveying roller (10) is arranged at the front end of the 1# temperature measuring instrument (2);
a2 # temperature measuring instrument (6) is arranged at the rear part of the heating conveying roller (1) positioned at the rearmost end, a tail end conveying roller (11) is arranged at the rear end of the 2# temperature measuring instrument (6), and the pierced billet (5) is conveyed to the stretch reducer (7) by the tail end conveying roller (11).
6. The electromagnetic hot supplementary heating device for hot rolled pierced billets as claimed in claim 1, characterised in that said heating system is capable of heating the pierced billet (5) to a temperature not lower than 171 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021073044.4U CN211071288U (en) | 2020-06-12 | 2020-06-12 | Electromagnetic concurrent heating device for hot-rolled pierced billet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021073044.4U CN211071288U (en) | 2020-06-12 | 2020-06-12 | Electromagnetic concurrent heating device for hot-rolled pierced billet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211071288U true CN211071288U (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021073044.4U Active CN211071288U (en) | 2020-06-12 | 2020-06-12 | Electromagnetic concurrent heating device for hot-rolled pierced billet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211071288U (en) |
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2020
- 2020-06-12 CN CN202021073044.4U patent/CN211071288U/en active Active
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