CN206435577U - A kind of steel rolling production-line that shortens continuously is tapped the device of time interval - Google Patents
A kind of steel rolling production-line that shortens continuously is tapped the device of time interval Download PDFInfo
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- CN206435577U CN206435577U CN201720065289.4U CN201720065289U CN206435577U CN 206435577 U CN206435577 U CN 206435577U CN 201720065289 U CN201720065289 U CN 201720065289U CN 206435577 U CN206435577 U CN 206435577U
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Abstract
A kind of steel rolling production-line that shortens continuously is tapped the device of time interval, belongs to steel rolling production-line equipment technical field, is continuously tapped time interval for shortening steel rolling production-line.Its technical scheme is：In the position of the first rolling mill one whole section of steel billet length of roller central line of distance before first rolling mill, a hot metal detector, the steely signal when steel tail signal monitored with this hot metal detector bites milling train to substitute are placed.When recognizing that this root steel billet head bites first rolling mill just below, the exchange main motor of first rolling mill starts prompt drop.The rolling speed constantly accelerated by downstream frame ensures rational steel splitting distance.So as to which point realizes safe steel splitting using first rolling mill as steel splitting, ensure that subsequent key equipment runs well, reach the effect that billet rolling interval time is shortened on the premise of production technology is not influenceed, production efficiency is improved, energy consumption is greatly reduced.
Description
Technical field
The utility model be related to it is a kind of be used to shortening steel rolling production-line and continuously tap the device of time interval, belong to steel rolling life
Producing line equipment technical field.
Background technology
" steel rolling " is last link in steel production.The steel billet of different size after heating furnace is preheated, successively
By point-blank place ten several framves or tens of frame quantity not etc., the tandem rolling that is dragged by alternating current-direct current excitation electromotor rolls
Machine, finished steel of the rolling as different size.This production process belongs to metal-pressed machine.To end since first rolling mill
Rolling mill terminates, and the steel billet in tandem rolling often passes through a rolling mill, and steel billet all can compress a certain size by two groups of rolls of milling train
Size.And often after a rolling mill, according to the equal principle of volume second flow, by rolling, the steel billet after diameter diminution
Gait of march it is faster than before rolling.Therefore the gait of march of the steel billet rolled by tandem rolling mill is constantly accelerated, and
And after the finisher of producing line least significant end speed can reach maximum.
Original steel rolling process, from heating furnace come out of the stove after adjacent two steel billets between always the strict holding several seconds when
Between be spaced, to ensure kink, the automation hot metal detector signal of flying shear regular event institute foundation can recognize that it is adjacent
Two steel.Modern steel rolling process uses tension free rolling, there is a looper that can be risen and fallen between every two rolling mill.
Steel has been recognized through set action can have been made later in loop scanner, by the upward jack-up of steel, forms an arch, it is therefore an objective to anti-
The piling of steel accident only often occurred between milling train.And the action that conforms to a conventional pattern can be made after steel blackout in having for loop scanner,
Low level is fallen on, wait has performed set action again when having recognized steel signal next time.If do not fallen in the case of without steel
The steel that low level may result in advancing below, which is bumped against, causes piling of steel on the loop back roll of rise.Similarly, rear end, use in rolling line
Also depend on the normal identification of respective hot metal detector signal in cutting head cutting tail and the flying shear for cutting multiple length and make shear action.
Therefore, if shortening time interval between adjacent two steel billets after coming out of the stove by its rolling from beginning to end, it will make it that heat is golden
Category detector has detected steel always and can not normally identify front and rear two steel billets.Flying shear and kink therefore remarkable action so as to
Cause piling of steel accident.The time interval that this several seconds is not waited have impact on rhythm of production to a certain extent, while also result in milling train
Energy resource consumption during empty load of motor.
In existing Automated condtrol logic, material recognition is to bite steel billet in a flash by milling train, and electric current is quick
Rise, has exceeded " setting threshold value " and then has sent steely signal, and this current-mode analog quantity steely signal is exactly that steel billet bites and rolled
The distinguishing mark of machine, follow-up cascade speed governing and various technology controlling and process all use this signal.Now due to first between steel billet
Tail is connected, and milling train is all the time in steel state is stung, and milling train steely signal can continue uninterruptedly, therefore it is preceding steel that can not normally recognize
The situation that steel is biting after biting still.
At present, signal biography can not be laid at first rolling mill under the mode situation changed from current-mode analog quantity to digital quantity
Sensor, because roller central line is a point-device position, because rolling mill roll volume is excessive, it is impossible at this spatially
Place a digital quantity signal transducer.Consult related data to find, signal biography is successfully placed at roller central line even if having
The case of sensor, can be because not reaching certain accuracy, so as to have impact on follow-up correlation step yet.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of steel rolling production-line that shortens and continuously tapped time interval
Device and method, this device and method can shorten the tapping interval time of adjacent two steel billets, realize adjacent two steel toe
Tail, which is connected, enters producing line rolling, while can also ensure that the regular event of flying shear, kink, reaches raising production efficiency, reduction energy
The effect of consumption.
Solving the technical scheme of above-mentioned technical problem is：
A kind of steel rolling production-line that shortens continuously is tapped the device of time interval, and it includes a hot metal detector and Re Jin
Belong to detector bracket, hot metal detector support is located at the first rolling mill front end side of steel rolling production-line, hot metal detector peace
On hot metal detector support, the distance between the roller central line of the probe and head rolling mills of hot metal detector is equal to
The length of institute's rolling steel billet, the signal output part of hot metal detector is connected with signal processing module, and signal processing module leads to
The variable-frequency governor for exchanging main motor that control device is crossed with first rolling mill is connected.
Above-mentioned shortening steel rolling production-line is continuously tapped the device of time interval, the first rolling mill front end side of steel rolling production-line
Slideway is provided with, the direction that slideway is run along steel billet, bottom and the slideway of hot metal detector support are connected, thermometal
Detector bracket is to be slidably matched with slideway.
The beneficial effects of the utility model are：
The utility model substitutes steel billet head with the digital dimension tail signal that is monitored of hot metal detector placed
Bite current-mode analog quantity steely signal during milling train.After this innovative design, using the stability of steel tail blackout, no
Error signal can be caused, so as to avoid the problem that sensor is placed at roll centre.At the same time, this monitoring signals passes through
Signal processing module is transported in the variable-frequency governor of exchange main motor of first rolling mill, and steel splitting behaviour is started as signal to reduce the speed
Make, solve the technical problem of steel splitting.
The utility model is pioneering in milling train tandem rolling, solves the long-term difficulty for attempting to solve and can't resolve in industry
Topic.By design of the present utility model, realize steel billet and first rolling mill is bitten in end to end mode, and biting first frame
While using first rolling mill as steel splitting, point realizes steel splitting so that the steel billet after first rolling mill with rolling speed not
Break and accelerate and pull open increasingly longer spacing, the normal operation of subsequent key equipment is met, when having reached shortening billet rolling interval
Between, the effect saving the consumption of milling train exchange main motor no-load current, energy resource consumption rate is greatly reduced.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Marked in figure as follows：One steel billet of the first rolling mill roller central line of the roller central line 1 of first rolling mill, distance is long
Degree 2, hot metal detector 3, hot metal detector support 4, slideway 5, steel billet 6, rolling mill roll 7.
Embodiment
Technical problem to be solved in the utility model is：
First so that steel billet is joined end to end before first rolling mill is bitten into producing line rolling.Tapped and saved due to heating furnace
Play is influenceed by the step rate do action time in stove, exists between root steel and comes out of the stove the time difference, front and rear two steel billets come out of the stove it
Just there is a distance interval afterwards.This carries the advanced rate of roller table speed of steel billet before being accomplished by being adjusted into first rolling mill.It is suitable
Steel billet direction of advance, the advanced rate of speed of each section of roller-way is set from high to low successively so that the latter steel that is come out from fire door
Base constantly catch up with previous steel billet, before first rolling mill is entered, and completes to join end to end at a moment for entering milling train the latest.These
It can be set by post operation personnel.
Secondly, two steel billets for continuously entering rolling line are identified, solving current equipment can not just general knowledge
Do not go out front and rear two steel billets, flying shear is with kink therefore remarkable action so as to cause piling of steel accident.
It is then necessary to design a kind of steel splitting method so that two neighboring steel billet is being rolled down to key equipment（Flying shear and work
Set）A certain distance is separated before, and on the one hand this distance will ensure the signal detection dress that above-mentioned key equipment is relied on
Former and later two steel billets in advancing can be distinguished by putting, and then ensure that flying shear is normally sheared, kink normally conforms to a conventional pattern；On the other hand, fly
The normal shearing cut needs to ensure have about 2 meters to 3 meters or so of distance between two steel billets, and arm mistake is cut during preventing that flying shear from acting
Next steel billet is hit, piling of steel is caused.
Technical solution adopted in the utility model is：
Shortening continuously the tap device of time interval of steel rolling production-line includes hot metal detector 3, thermometal detection
Device support 4 and slideway 5.
Fig. 1 shows that hot metal detector support 4 is located at the first rolling mill front end side of steel rolling production-line, thermometal detection
Device 3 is arranged on hot metal detector support 4, and the first rolling mill front end side of steel rolling production-line is provided with slideway 5, the edge of slideway 5
The direction of the operation of steel billet 6, bottom and the slideway 5 of hot metal detector support 4 be connected, hot metal detector support 4 and
Slideway 5 is to be slidably matched.
Fig. 1 shows, the distance between the probe of hot metal detector 3 and roller central line 1 of first rolling mill are equal to being rolled
The length of steel billet 6 processed, the signal output part of hot metal detector 3 is connected with signal processing module, and signal processing module passes through
Control device is connected with the variable-frequency governor for exchanging main motor of first rolling mill.
Application method of the present utility model is as follows：
A. slideway is laid in first rolling mill front end outer side, hot metal detector support 4 and thermometal inspection is installed on slideway 5
Device 3 is surveyed, the distance between roller central line 1 of the probe of hot metal detector 3 and first rolling mill is adjusted to institute's rolling steel billet 6
Length.
B. operating personnel carry the advanced rate of roller table speed of steel billet 6 by setting before being adjusted into first rolling mill, i.e., suitable
The direction of advance of steel billet 6, the advanced rate of speed of each section of roller-way is set from high to low successively so that the latter steel that is come out from fire door
Base 6 constantly catch up with previous steel billet 6, before first rolling mill is entered, and completes to join end to end at a moment for entering milling train the latest.
C. " slow persistence time " and " setting of low speed ratio " two parameters of the exchange main motor of first rolling mill are set, will
The two parameters be input to hot metal detector 3 connection signal processing module in, " slow persistence time " parameter be defined to 0 to
9 seconds；" setting of low speed ratio " parameter amplitude limit is interval 70% to 100%.
D. signal processing module is detected by " slow persistence time " and " setting of low speed ratio " two parameters to thermometal
The signal that device 3 is inputted is handled, and the change that speed command is transported to exchange main motor by transmission control device is sent after processing
Frequency speed regulator, issues one prompt drop order of exchange main motor of first rolling mill at once, with control first rolling mill prompt drop ratio and
Duration.
The utility model solves steel billet and joined end to end before first rolling mill is bitten into producing line rolling and to continuous
The problem of being identified into two steel billets of rolling line.Specifically, the energy of hot metal detector support 4 on slideway 5
The position of the enough steel billet length 2 that the first rolling mill roller central line of distance is adjusted according to the steel billet 6 of different length.It is long with 12 meters
Exemplified by the steel billet 6 of specification, this position is exactly at first 12 meters of the rolling mill roller central line of distance, to place a hot metal detector
4, at the time of for detecting that steel tail disappears, due to front and rear two steel billets, at this position, root steel spacing is remained, and disclosure satisfy that
The normal detection of detection means, will not the company's of generation steel signal.This moment is exactly that this section of steel billet 6 bites first rolling mill just just
At the time of.I.e.：The digital dimension tail signal monitored with the hot metal detector 3 of placement rolls to substitute the head of steel billet 6 and bite
Current-mode analog quantity steely signal during machine.After this innovative design, using the stability of steel tail blackout, it will not cause
Error signal, so as to avoid the problem that sensor is placed at roll centre.
" steel splitting " technological difficulties are solved using the utility model simultaneously, it is contemplated that the spy of steel rolling process cascade speed governing
Point：" speed of adjustment downstream frame, which can follow up, has influence on upstream stand so that the speed of upstream institute organic frame, which is followed, to be adjusted ".
In order to not influence the change of production technology, cascade speed governing influence caused by the speed because regulating and controlling certain rolling mill is eliminated.This practicality
The new sortie that steel splitting point is set as to most upstream, i.e., realize steel splitting at first rolling mill.During steel splitting, given birth to by steel rolling
In producing line steel billet can gradually be stretched the feature of acceleration, and the utility model creatively realizes steel splitting using the method for prompt drop.
What is be worth noting that is a little that this prompt drop has time span and scale requirement, and this mainly exists in view of steel billet
The second sortie, the 3rd sortie etc. can be entered successively after first rolling mill, if prompt drop overlong time, or prompt drop ratio
Example is excessive, and the heap of steel billet between sortie will be had influence on and establish unprincipled connection by treating that steel billet is bitten after follow-up sortie, cause excessive tensile, very
To breaking, product quality and lumber recovery are influenceed.Therefore also need slow persistence time and low speed ratio setting the two factors and examine
Worry is come in.So that preferably biting second in steel billet or the 3rd prompt drop process is just completed before sortie and recovering original rate.
During steel splitting, end to end front and rear two steel bite first frame just when recognizing this root steel billet head below
During milling train, the hot metal detector 3 at the previous whole section of steel billet extension position of first rolling mill roller central line 1 can be sent to
One prompt drop signal of motor speed control device, this prompt drop signal communication to the variable-frequency governor for exchanging main motor, now first frame is rolled
The exchange main motor of machine adjusts lower prompt drop by the speed of frequency converter, can be accelerated by steel billet in steel rolling production-line by gradually stretching
Feature, mill speed constantly accelerates, and the previous speed with steel billet is more and more faster, behind this is fast due to just biting with steel billet
The first rolling mill of drop, so as to maintain an increasing distance with previous steel billet.So as to constantly add by downstream frame
Fast rolling speed ensure that this rational steel splitting distance.
In above process, hot metal detector 3 is detected the signal that this section of steel billet 6 disappear and is just used as this section of steel billet 6
Just the steely signal of first rolling mill roll 7 is bitten.Once recognizing biting for steel billet 6, signal processing module is by raw velocity
An adjustable parameter k is multiplied by input（Low speed ratio is set）Export afterwards, i.e., signal processing module can issue first rolling mill at once
The one prompt drop order of exchange main motor, this order is sent to SIEMENS S7-200, by the first rolling mill prompt drop of Frequency Converter Control.Treat
After slow persistence time meter is full, the given revocation of low speed, into next recognition cycle.Constantly move in circles, when reaching contracting, energy-conservation
Purpose.
The utility model realizes steel billet and bites first rolling mill in end to end mode by above technical scheme, and
And using first rolling mill as steel splitting, point realizes steel splitting while first frame is bitten so that steel billet after first rolling mill with
Roll the continuous quickening of speed and pull open increasingly longer spacing, meet the normal operation of subsequent key equipment, shorten steel billet and roll
Interval time processed, milling train exchange main motor no-load current consumption is saved, energy resource consumption rate is greatly reduced.By measuring and calculating, use
After the utility model, rolling rhythm 7%-11% or so can be improved.It is about 22- per hour to save the alternating current equipment no-load running time
27.5 seconds, the electric power energy consumption of alternating current equipment under zero load is reduced, has been reached and has been improved production efficiency, reduces the effect of energy consumption.
Claims (2)
- The device of time interval 1. a kind of shortening steel rolling production-line is continuously tapped, it is characterised in that：It includes a thermometal inspection Survey device（3）With hot metal detector support（4）, hot metal detector support（4）Positioned at the first rolling mill front end of steel rolling production-line Side, hot metal detector（3）Installed in hot metal detector support（4）On, hot metal detector（3）Probe rolled with first frame The roller central line of machine（1）The distance between be equal to institute's rolling steel billet（6）Length, hot metal detector（3）Signal output End is connected with signal processing module, and signal processing module passes through the change frequency modulation that exchanges main motor of the control device with first rolling mill Fast device is connected.
- The device of time interval 2. shortening steel rolling production-line according to claim 1 is continuously tapped, it is characterised in that：Steel rolling The first rolling mill front end side of production line is provided with slideway（5）, slideway（5）Along steel billet（6）The direction of operation, thermometal detection Device support（4）Bottom and slideway（5）It is connected, hot metal detector support（4）With slideway（5）To be slidably matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720065289.4U CN206435577U (en) | 2017-01-19 | 2017-01-19 | A kind of steel rolling production-line that shortens continuously is tapped the device of time interval |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720065289.4U CN206435577U (en) | 2017-01-19 | 2017-01-19 | A kind of steel rolling production-line that shortens continuously is tapped the device of time interval |
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| Publication Number | Publication Date |
|---|---|
| CN206435577U true CN206435577U (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720065289.4U Expired - Fee Related CN206435577U (en) | 2017-01-19 | 2017-01-19 | A kind of steel rolling production-line that shortens continuously is tapped the device of time interval |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670241A (en) * | 2017-01-19 | 2017-05-17 | 宣化钢铁集团有限责任公司 | Device and method for shortening continuous tapping time interval of rolled steel production line |
| CN109590337A (en) * | 2018-11-22 | 2019-04-09 | 阳春新钢铁有限责任公司 | A kind of control system and method preventing steel scrap |
| CN110773570A (en) * | 2019-09-20 | 2020-02-11 | 南京钢铁股份有限公司 | Method for improving rolling rhythm of 5m rolling mill |
| CN111906150A (en) * | 2020-07-29 | 2020-11-10 | 盐城市联鑫钢铁有限公司 | Steel rolling rear-end collision prevention early warning method and system |
-
2017
- 2017-01-19 CN CN201720065289.4U patent/CN206435577U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670241A (en) * | 2017-01-19 | 2017-05-17 | 宣化钢铁集团有限责任公司 | Device and method for shortening continuous tapping time interval of rolled steel production line |
| CN109590337A (en) * | 2018-11-22 | 2019-04-09 | 阳春新钢铁有限责任公司 | A kind of control system and method preventing steel scrap |
| CN110773570A (en) * | 2019-09-20 | 2020-02-11 | 南京钢铁股份有限公司 | Method for improving rolling rhythm of 5m rolling mill |
| CN111906150A (en) * | 2020-07-29 | 2020-11-10 | 盐城市联鑫钢铁有限公司 | Steel rolling rear-end collision prevention early warning method and system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170825 Termination date: 20190119 |