CN2734345Y - Device for inhibiting band steel jitter employing eletromagnetic technology - Google Patents
Device for inhibiting band steel jitter employing eletromagnetic technology Download PDFInfo
- Publication number
- CN2734345Y CN2734345Y CN 200420090677 CN200420090677U CN2734345Y CN 2734345 Y CN2734345 Y CN 2734345Y CN 200420090677 CN200420090677 CN 200420090677 CN 200420090677 U CN200420090677 U CN 200420090677U CN 2734345 Y CN2734345 Y CN 2734345Y
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- China
- Prior art keywords
- displacement
- band steel
- steel
- conditioner
- inhibition zone
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Abstract
The utility model relates to a device for inhibiting the dithering of the band steel by employing electromagnetic technology, comprising displacement sensors, a controller, a displacement conditioner, power amplification circuits, and electric magnets. At least one couple of displacement sensors and electric magnets are arranged on two sides of the band steel, the output of the displacement sensors is connected with the displacement conditioner, the displacement of the output difference of the displacement conditioner is connected with the controller, and the output of the controller is connected in sequence with the couple of power amplification circuits, and the electric magnets which are arranged at the two sides of the band steel and kept in a non-contact state. The differential magnetic field for inhibiting the dithering of the band belt can be generated by the electric magnets which are controlled by the checking of the couples of sensors, the difference output of the displacement conditioner, and the output of the controller, and user's high requirement to the surface quality is satisfied.
Description
(1) technical field
The utility model relates to a kind of device that adopts the shake of electromagnetic technique inhibition zone steel.
(2) background technology
In band steel production process, because extraneous disturbed belt steel can be shaken, the shake form mainly contains: swing, tilting, the wing move, and the shake of band steel can cause belt steel surface to produce defective, vibrate line, thickness of coating inequality, heat the uneven striped of producing etc. such as the band steel.Touch roll is mainly adopted in the measure of existing inhibition zone steel shake, referring to Fig. 1, but in the exigent occasion of strip surface quality, adopt the easy scratch surface of touch roll, especially in belt steel surface plating (being coated with) layer occasion of also not solidifying, such as, just having left the band steel of zinc pan gas cutter, touch roll can destroy plating (being coated with) layer.Because the thickness of band steel has only 0.3～2mm, also being in the very big suspension status of span simultaneously in addition, therefore is a very soft flexible body, only is difficult to the shake of control band steel with touch roll.
(3) summary of the invention
The purpose of this utility model is to provide a kind of device that adopts the shake of electromagnetic technique inhibition zone steel, it has overcome the defective of prior art, by many sensor is detected and exports through the difference of displacement conditioner, user's requirement more and more higher to surface quality satisfied in the shake that via controller output control electromagnet comes the inhibition zone steel.
The utility model is achieved in that a kind of device that adopts the shake of electromagnetic technique inhibition zone steel, comprise displacement transducer, controller, displacement conditioner, power amplifier and electromagnet, at least one pair of displacement transducer and a pair of electromagnet place band steel both sides, displacement transducer output connects the displacement conditioner, displacement conditioner output difference displacement connects controller, controller output connects a pair of power amplifier, electromagnet successively, electromagnet places near band steel both sides and keeps noncontact, and produces differential magnetic field.
The device of above-mentioned employing electromagnetic technique inhibition zone steel shake, the described device of on the strip width direction, arranging three pairs of described inhibition zone steel shakes at least; On band steel length direction, arrange the device of the described inhibition zone steel shake of two rows at least.
The utility model adopts electromagnetic force to come the shake of inhibition zone steel, by many sensor is detected simultaneously and exports through the difference of displacement conditioner, via controller output control electromagnet, make electromagnet produce differential magnetic field, the band steel is subjected to one to make a concerted effort in differential magnetic field, the direction point towards equilibrium positions, thus make the band steel keep the equilbrium position, come the shake of inhibition zone steel, satisfy user's requirement more and more higher surface quality.
(4) description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is for utilizing the structural representation of touch roll inhibition zone steel shake in the prior art
Fig. 2 adopts the apparatus structure schematic diagram of electromagnetic technique inhibition zone steel shake for the utility model;
Fig. 3 arranges schematic diagram of the present utility model on the strip width direction;
Fig. 4 arranges schematic diagram of the present utility model on band steel length direction;
Fig. 5 is applied to the schematic diagram of hot-dip galvanized alloyization for the utility model.
Among the figure: 1 band steel, 2 first sensors, 3 second sensors, 4 first electromagnet, 5 second electromagnet, 6 displacement conditioners, 7 controllers, 8 first power amplifiers, 9 second power amplifiers, the device of 10 inhibition zone steel shake; 11 alloying furnaces, 12 air knives, 13 stablize roller, 14 sinking rollers, 15 zinc pots, 16 touch rolls, 17 deflector rolls.
(5) specific embodiment
Referring to Fig. 2, a kind of device 10 that adopts the shake of electromagnetic technique inhibition zone steel, comprise displacement transducer 2,3, controller 7, displacement conditioner 6, power amplifier 8,9 and electromagnet 4,5, a pair of displacement transducer 2,3 places band steel 1 both sides, displacement transducer 2,3 outputs connect displacement conditioner 6, displacement conditioner 6 output difference displacements connect controller 7, and controller 7 outputs connect a pair of power amplifier 8,9, electromagnet 4,5 successively, and electromagnet 4,5 places near band steel 1 both sides and keeps noncontact.
Its operation principle is referring to Fig. 2, and band steel 1 can be shaken under initial disturbance or dynamic excitation; Shake is surveyed simultaneously by the first sensor 2 and second sensor 3, departs from the displacement Y of equalization point through the processing formation band steel 1 of displacement conditioner 6
0, i.e. differential values; Controller 7 is according to displacement Y
0Regulate, produce control signal i; First power amplifier 8 and second power amplifier 9 convert this control signal to the control current i
c, control electric current and bias current form the first exciting current (I together
b+ i
c) and the second exciting current (I
b-i
c); Exciting current makes first electromagnet 4 and second electromagnet 5 produce differential magnetic field respectively; Band steel 1 is subjected to one to make a concerted effort in differential magnetic field, direction point towards equilibrium positions (among Fig. 2 upwards), thus it is constant to make band steel 1 keep the equilbrium position, has prevented the shake of band steel.The problem that variate has avoided sensor 2,3 temperature drifts etc. to bring makes certainty of measurement more accurate, and sensitivity is higher.
It is the Differential Control of closed loop that magnetic force adopts with the displacement.Be with this moment steel 1 to be subjected to one to make a concerted effort, its size is
μ wherein
0Be air permeability, S
0Be the magnetic pole effective area, N is a coil turn, δ
0Be the monolateral air gap of band steel when the equilbrium position, y is band steel side-play amount, I
bBe bias current, i
cBe the control electric current.
Since band steel institute stressed with its from square being inversely proportional to of pole pitch, be an astable system of essence, so Differential Control just can make control system stablize.
Referring to Fig. 3, adopt the device of electromagnetic technique inhibition zone steel shake on the strip width direction, to arrange the device 10 of three pairs of described inhibition zone steel shakes at least, to prevent shake with steel 1.
Referring to Fig. 4, adopt the device of electromagnetic technique inhibition zone steel shake on band steel length direction, to arrange the device 10 of the described inhibition zone steel shake of two rows at least.Because when the 1 continuous operation of band steel, the existence of weld seam and/or wooden dipper song can change band steel displacement, thereby changes the size of electromagnetic force, the device 10 that only relies on row's inhibition zone steel to shake can not satisfy the requirement of stabilized zone steel 1.When being with steel 1 thickness less than 3mm, magnetic makes a concerted effort to exist a maximum.If magnetic makes a concerted effort not reach when preventing that shake from requiring, on band steel traffic direction, increase row's number of the device 10 of inhibition zone steel shake again.
Referring to Fig. 5, the utility model is applied to be with in the production of steel continuous hot galvanizing alloying.Band steel 1 enters zinc pot 15, through sinking roller 14 and stable roller 13, arrives the air knife 12 of control thickness of coating, arrives a roller by alloying furnace 11 then.Band steel 1 up to tens meters above air knife 12 is easy to shake, and the one, had a strong impact on the uniformity of thickness of coating; The 2nd, the uniformity that influence band steel 1 heats in alloying furnace 11, thus influence surface quality.Because coating does not solidify, and generally should not use touch roll herein.Carry out contactless stabilized zone steel 1 with electromagnetic force, can significantly improve the uniformity of thickness of coating and the uniformity of heating.
Claims (3)
1. device that adopts electromagnetic technique inhibition zone steel shake, comprise displacement transducer, controller, it is characterized in that also comprising displacement conditioner, power amplifier and electromagnet, at least one pair of displacement transducer and a pair of electromagnet place band steel both sides, displacement transducer output connects the displacement conditioner, and displacement conditioner output difference displacement connects controller, and controller output connects a pair of power amplifier, electromagnet successively, electromagnet places near band steel both sides and keeps noncontact, and produces differential magnetic field.
2. the device of employing electromagnetic technique inhibition zone steel shake according to claim 1 is characterized in that arranging at least the device of three pairs of described inhibition zone steel shakes on the strip width direction.
3. the device of employing electromagnetic technique inhibition zone steel shake according to claim 1 and 2 is characterized in that arranging at least the device of the described inhibition zone steel shake of two rows on band steel length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090677 CN2734345Y (en) | 2004-09-29 | 2004-09-29 | Device for inhibiting band steel jitter employing eletromagnetic technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090677 CN2734345Y (en) | 2004-09-29 | 2004-09-29 | Device for inhibiting band steel jitter employing eletromagnetic technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2734345Y true CN2734345Y (en) | 2005-10-19 |
Family
ID=35264227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420090677 Expired - Fee Related CN2734345Y (en) | 2004-09-29 | 2004-09-29 | Device for inhibiting band steel jitter employing eletromagnetic technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2734345Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101152934B (en) * | 2006-09-27 | 2010-12-01 | 宝山钢铁股份有限公司 | Strip steel non-roller correcting error method and apparatus |
| CN101939119B (en) * | 2008-01-17 | 2013-05-29 | Ihi金属生产设备科技株式会社 | Carrying apparatus and hot-rolling apparatus, and carrying method and hot-rolling method |
| CN105478491A (en) * | 2014-09-29 | 2016-04-13 | 宝山钢铁股份有限公司 | Positioning method for positions of vibration mark defect of strip steel |
-
2004
- 2004-09-29 CN CN 200420090677 patent/CN2734345Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101152934B (en) * | 2006-09-27 | 2010-12-01 | 宝山钢铁股份有限公司 | Strip steel non-roller correcting error method and apparatus |
| CN101939119B (en) * | 2008-01-17 | 2013-05-29 | Ihi金属生产设备科技株式会社 | Carrying apparatus and hot-rolling apparatus, and carrying method and hot-rolling method |
| CN105478491A (en) * | 2014-09-29 | 2016-04-13 | 宝山钢铁股份有限公司 | Positioning method for positions of vibration mark defect of strip steel |
| CN105478491B (en) * | 2014-09-29 | 2017-08-25 | 宝山钢铁股份有限公司 | A kind of strip vibrates the localization method of line defective locations |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051019 Termination date: 20130929 |