CN103223417A - Roller online heating device and heating method - Google Patents

Roller online heating device and heating method Download PDF

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Publication number
CN103223417A
CN103223417A CN2013100748643A CN201310074864A CN103223417A CN 103223417 A CN103223417 A CN 103223417A CN 2013100748643 A CN2013100748643 A CN 2013100748643A CN 201310074864 A CN201310074864 A CN 201310074864A CN 103223417 A CN103223417 A CN 103223417A
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CN
China
Prior art keywords
heating
roll
online
mantles
heater
Prior art date
Application number
CN2013100748643A
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Chinese (zh)
Inventor
惠世民
朱盛林
张路漫
Original Assignee
上海西重所重型机械成套有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海西重所重型机械成套有限公司 filed Critical 上海西重所重型机械成套有限公司
Priority to CN2013100748643A priority Critical patent/CN103223417A/en
Publication of CN103223417A publication Critical patent/CN103223417A/en

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Abstract

The invention discloses a roller online heating device and heating method. The on-line heating device is characterized by comprising a pair of upper cambered heating mantles (1) and a pair of lower cambered heating mantles (2), wherein cambered surfaces of the inner sides of the heating mantles correspond to rollers (5); the pair of the upper cambered heating mantles (1) is hinged through an upper hinge (3); the pair of the lower cambered heating mantles (2) is hinged through a lower hinge (4); the upper cambered heating mantles (1) are provided with upper mounting plates (101) for position fixation, and the lower cambered heating mantles (2) are provided with lower mounting plates (102) for position fixation; the upper mounting plates (101) and the lower mounting plates (102) are connected with bearings on two sides of the upper rollers and on two sides of the lower rollers respectively and the positions fixed by the upper mounting plates (101) and the lower mounting plates (102) can be adjusted according to diameters of the rollers (5); embedding grooves are arranged on the cambered surfaces of the inner sides of the upper heating mantles (1) and the cambered surfaces of the inner sides of the lower heating mantles (2); heating coils are embedded into the embedding grooves; the heating coils are separated from the embedding grooves through thermal insulating layers; the on-line heating device further comprises a temperature sensor; temperature sensing contacts of the temperature sensor are contacted with the rollers (5); the temperature sensor sends temperatures of the rollers to a control system; and the control system controls on and off of currents of the heating coils.

Description

Online heater of a kind of roll and heating means thereof
Technical field
The present invention relates to a kind of heater and heating means thereof, relate in particular to online heater of a kind of roll and heating means thereof, belong to the roll technical field of heating.
Background technology
When some metal or alloy sheet materials are rolled, owing to be subjected to its grainiess restriction to need to adopt warm-rolling, and during warm-rolling, for and avoid producing face crack and raw edges because of the temperature difference between rolled piece and the roll causes sheet material, improve the rolling performance and the lumber recovery of sheet material, need carry out preheating the rolling mill roll surface.
General roll mode of heating generally has two kinds at present, and a kind of is the heating of breaker roll integral outer, and common heater is the roll heating furnace, during use, need roll is loaded in the roll heating furnace, by the conduction of heat of heating furnace, be heated to the time or temperature of appointment after, again roll is taken out from stove, come into operation, treat roll at normal temperatures temperature drop, need quit work when following to operating temperature, be loaded in the stove once more and heat, and so forth operation.This mode of heating uses inconvenient, influences the operating efficiency of milling train.
Another kind of mode of heating is the inner water flowing of breaker roll, logical oil, heats, these modes need form a hydraulic circulating system, by to hydronic, arrive the purpose of temperature control, though this mode of heating has been realized the online heating of roll, but have following technical problem: heat time heating time is long, power consumption is high, be heated that the roll thermal inertia is big, the roller temperature control accuracy is low, and cost is high.
Summary of the invention
The technical problem that actual needs of the present invention solves is: existing roll heater, or can't onlinely heat, use inconvenience, inefficiency; Or the energy consumption height, heat time heating time is long, it is big to be heated the roll thermal inertia, and the roller temperature control accuracy is low, and cost is high.
The present invention is intended to solve the problems of the technologies described above, and provides a kind of roll online heater.The present invention takes following technical scheme:
The online heater of a kind of roll, comprise a pair of upper and lower arc heating mantles 1,2, its inboard cambered surface is corresponding with roll 5, hinged between the described a pair of upper and lower arc heating mantles 1,2 by upper and lower hinge 3,4, described upper and lower hinge 3,4 is fixed on the rolling-mill housing, be fixed with upper and lower installing plate 101,201 on the described upper and lower arc heating mantles 1,2 separately, described upper and lower installing plate 101,201 is fixedlyed connected with rolling-mill housing, and directly regulates its fixing position according to the roller of roll 5; Described upper and lower arc heating mantles 1,2 inboard cambered surfaces are provided with embedding groove, inlay heater coil in the described embedding groove, and described heater coil and embedding groove separate by thermal insulation layer; Also comprise temperature sensor, the temperature-sensitive contact of described temperature sensor contacts with roll 5, and described temperature sensor is passed to control system with roller temperature, and described control system is controlled the closure/disconnection of described heating coil current.
Further, described temperature sensor is fixed on the upper and lower arc heating mantles 1,2.
Further, the material of described upper and lower arc heating mantles 1,2 is an aluminium alloy.
Further, the material of described thermal insulation layer is a heat insulation foam.
Further, its heat form is an electromagnetic induction heating.
A kind of heating means of using the above-mentioned online heater of roll may further comprise the steps:
A, according to the external diameter of roll 5, upper and lower arc heating mantles 1,2 is rotated around upper and lower hinge 3,4, be adjusted to the position of effective heating spacing, upper and lower installing plate 101,201 is connected with the bearing block of top and bottom rolls both sides respectively;
B, open online heating, online heating is closed/opened once more to control system according to the design temperature of temperature sensor;
C, roll work abrasion back external diameter reduce, and close online heating, readjust the fixed position of upper and lower installing plate 101,201, are effectively heated spacing;
D, circulation step b-c.
Characteristics of the present invention are: the method that the online heating of a kind of roll is provided, by each a pair of arc heating mantles up and down, cover on the outside of upper and lower roll respectively, and the rotary action by upper and lower hinge, spacing is effectively heated in roll adjustment to various outer diameter, especially same roll external diameter after abrasion is reduced, readjust the opening angle of arc heating mantles, effectively heated spacing thereby further adjust.Simultaneously, though by temperature sensor the induction, accurately heating-up temperature is carried out instant control.
Beneficial effect of the present invention is:
When 1) realizing online heating, avoid using hydraulic circulating system, the structure of heater, control are all simplified greatly, and is easy to maintenance.
2) cost of heater significantly reduces.
3) the roll thermal inertia is little, and temperature control is accurate.
4) easy to use, can change according to the external diameter of roll and regulate effectively heating spacing easily.
5) hot rolled steel plate industry output value height, the present invention has the prospect of promotion and implementation widely, has great commercial value.
6) solve in the hot rolled steel plate field for a long time technical barrier, and possessed beyond thought technique effect.
Description of drawings
Fig. 1 is that the master of the online heater of roll of the present invention looks schematic diagram.
Fig. 2 is the schematic side view of Fig. 1.
Wherein, 1, go up the arc heating mantles, 2, the arc lower heating mantles, 3, upper hinge, 4, hinge down, 5, roll, 101, upper mounting plate, 201, lower installation board.
The specific embodiment
The present invention is further described below in conjunction with specific embodiment.
As Fig. 1-shown in Figure 2, a pair of upper and lower arc heating mantles 1,2 is undertaken hinged by upper and lower hinge 3,4, up and down, be respectively equipped with upper and lower installing plate 101,201 on the arc heating mantles 1,2.
Upper and lower arc heating mantles 1,2 inboard cambered surfaces are provided with embedding groove, inlay heater coil in the embedding groove, and heater coil and embedding groove separate by the heat insulation foam layer.
The temperature-sensitive contact of temperature sensor contacts with roll 5, and temperature sensor is passed to control system with roller temperature, the closure/disconnection of control system control heating coil current.
When the online heater of roll of the present invention used, upper and lower arc heating mantles was opened certain angle separately around hinge through, was installed in the roll outside.Adjust upper and lower installing plate, the bearing block with the top and bottom rolls both sides is connected respectively.Because the roll grinding roller, roller directly reduces, and can directly change according to roller, adjusts its upper-lower position within the specific limits, thereby the gap between assurance arc heating mantles and roll surface is in effective heated perimeter.Heater coil is embedded in the arc cover, is provided with thermal insulation layer between them, scatters and disappears to prevent heat.
Control system is made up of temperature sensor, master controller, control box etc.Temperature sensor is installed on the arc heating mantles, its temperature-sensitive contact and roll sliding-contact, and effectively the measuring roll surface temperature feeds back to master controller.Master controller, control box are realized display setting and the control to the digitlization of heating-up temperature and heat time heating time, heating power.
Heat form is an electromagnetic induction heating, the heating of roll top layer, and efficiency of heating surface height, energy consumption is low.
Heater of the present invention need not to dismantle when roll is worked, admittedly be referred to as online heating.

Claims (6)

1. online heater of roll is characterized in that:
Comprise a pair of upper and lower arc heating mantles (1,2), its inboard cambered surface is corresponding with roll (5), hinged between the described a pair of upper and lower arc heating mantles (1,2) by upper and lower hinge (3,4), be provided with upper and lower installing plate (101,201) on the upper and lower arc heating mantles (1,2) separately and carry out fixed-site, upper and lower installing plate (101, the 201) bearing block with the top and bottom rolls both sides respectively is connected, and directly regulates its fixing position according to the roller of roll (5);
The inboard cambered surface of described upper and lower arc heating mantles (1,2) is provided with embedding groove, inlays heater coil in the described embedding groove, and described heater coil and embedding groove separate by thermal insulation layer;
Also comprise temperature sensor, the temperature-sensitive contact of described temperature sensor contacts with roll (5), and described temperature sensor is passed to control system with roller temperature, and described control system is controlled the closure/disconnection of described heating coil current.
2. the online heater of roll as claimed in claim 1 is characterized in that: described temperature sensor is fixed on the upper and lower arc heating mantles (1,2).
3. the online heater of roll as claimed in claim 1 is characterized in that: the material of described upper and lower arc heating mantles (1,2) is an aluminium alloy.
4. the online heater of roll as claimed in claim 3 is characterized in that: the material of described thermal insulation layer is a heat insulation foam.
5. the online heater of roll as claimed in claim 1 is characterized in that: its heat form is an electromagnetic induction heating.
6. heating means of using the online heater of the described roll of claim 1 is characterized in that, may further comprise the steps:
A, according to the external diameter of roll (5), upper and lower arc heating mantles (1,2) is rotated around upper and lower hinge (3,4), be adjusted to the position of effective heating spacing, with upper and lower installing plate (101,201) respectively the bearing block with the top and bottom rolls both sides be connected;
B, open online heating, online heating is closed/opened once more to control system according to the design temperature of temperature sensor;
C, roll work abrasion back external diameter reduce, and close online heating, readjust the fixed position of upper and lower installing plate (101,201), are effectively heated spacing;
D, circulation step b-c.
CN2013100748643A 2013-03-08 2013-03-08 Roller online heating device and heating method CN103223417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013100748643A CN103223417A (en) 2013-03-08 2013-03-08 Roller online heating device and heating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013100748643A CN103223417A (en) 2013-03-08 2013-03-08 Roller online heating device and heating method

Publications (1)

Publication Number Publication Date
CN103223417A true CN103223417A (en) 2013-07-31

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104228089A (en) * 2014-09-13 2014-12-24 福建中管机电科技有限公司 Suspension-type openable heating cover
CN105180550A (en) * 2015-09-06 2015-12-23 江苏润孚机械轧辊制造有限公司 Rolling shutter-type cooling water tank for roll production
CN105521996A (en) * 2016-02-04 2016-04-27 东北大学 Hot roller heating and rolling device and method for magnesium alloy strips
CN106269874A (en) * 2016-10-26 2017-01-04 燕山大学 A kind of electro plasticity cross wedge rolling machine
CN106475426A (en) * 2015-08-26 2017-03-08 宝山钢铁股份有限公司 Roll surface temperature device for accurately measuring and measuring method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB225098A (en) * 1924-02-22 1924-11-27 Freyn Brassert And Company Improvements in the heating of rolls
US1520426A (en) * 1923-12-31 1924-12-23 Wheeling Steel Corp Electrical roll-heating apparatus
US1667884A (en) * 1928-05-01 Sheet-mill-boll heater
US1676018A (en) * 1923-06-04 1928-07-03 Freyn Engineering Co Roll-heating means
CN101486045A (en) * 2008-01-14 2009-07-22 哈尔滨工业大学 Intermediate frequency induction heating type hot double-roll reversing roller and rolling method
CN202238896U (en) * 2011-09-13 2012-05-30 宝山钢铁股份有限公司 Roller preheating device
CN202744596U (en) * 2012-08-09 2013-02-20 耿震宇 Double-frequency quenching inductor
CN203108934U (en) * 2013-03-08 2013-08-07 上海西重所重型机械成套有限公司 Roller on-line heating device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1667884A (en) * 1928-05-01 Sheet-mill-boll heater
US1676018A (en) * 1923-06-04 1928-07-03 Freyn Engineering Co Roll-heating means
US1520426A (en) * 1923-12-31 1924-12-23 Wheeling Steel Corp Electrical roll-heating apparatus
GB225098A (en) * 1924-02-22 1924-11-27 Freyn Brassert And Company Improvements in the heating of rolls
CN101486045A (en) * 2008-01-14 2009-07-22 哈尔滨工业大学 Intermediate frequency induction heating type hot double-roll reversing roller and rolling method
CN202238896U (en) * 2011-09-13 2012-05-30 宝山钢铁股份有限公司 Roller preheating device
CN202744596U (en) * 2012-08-09 2013-02-20 耿震宇 Double-frequency quenching inductor
CN203108934U (en) * 2013-03-08 2013-08-07 上海西重所重型机械成套有限公司 Roller on-line heating device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104228089A (en) * 2014-09-13 2014-12-24 福建中管机电科技有限公司 Suspension-type openable heating cover
CN106475426A (en) * 2015-08-26 2017-03-08 宝山钢铁股份有限公司 Roll surface temperature device for accurately measuring and measuring method
CN105180550A (en) * 2015-09-06 2015-12-23 江苏润孚机械轧辊制造有限公司 Rolling shutter-type cooling water tank for roll production
CN105180550B (en) * 2015-09-06 2018-01-30 江苏润孚机械轧辊制造有限公司 A kind of roll produces roller shutter type cooling water tank
CN105521996A (en) * 2016-02-04 2016-04-27 东北大学 Hot roller heating and rolling device and method for magnesium alloy strips
CN106269874A (en) * 2016-10-26 2017-01-04 燕山大学 A kind of electro plasticity cross wedge rolling machine

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Application publication date: 20130731

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