CN106555051B - A kind of slab heating furnace discharging door unlatching sequential control method - Google Patents
A kind of slab heating furnace discharging door unlatching sequential control method Download PDFInfo
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- CN106555051B CN106555051B CN201510626864.9A CN201510626864A CN106555051B CN 106555051 B CN106555051 B CN 106555051B CN 201510626864 A CN201510626864 A CN 201510626864A CN 106555051 B CN106555051 B CN 106555051B
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Abstract
A kind of slab heating furnace discharging door unlatching sequential control method, belongs to control field.It determines that the unlatching rational position of discharging door and tapping arm are run to the angle between when " rising in place " position and horizontal roller face first,Under the premise of meeting normal manufacturing technique requirent,Establish time sequence control logic of discharging door " unlatching " action during " automatic tapping ",Using " calculate extractor tapping arm rise in place after at the forefront of discharging door the extractor vertical range of the tapping arm apart from fire door,Determine that discharging door needs the extreme lower position opened again " pattern,Ensure that the tapping arm of extractor will not collide discharging door,To protect equipment safety,Minimize the opening degree of fire door,Reduce thermal loss,Shorten the time of fire door " standard-sized sheet " state,It can preferably control and heat atmosphere in stove,Reduce the energy loss during heating furnace " automatic tapping ",Production cost and equipment operation energy consumption can be further decreased.
Description
Technical field
The invention belongs to control fields, the specially control during metal heat treatmet or method of adjustment more particularly to one
Method for controlling opening and closing of the kind for slab heating furnace discharging door.
Background technology
The function of rolling mill furnace extractor is will to be heated to the slab " extraction " of certain temperature in heating furnace, is put into
On the center line of furnace outlet roller-way, it is sent to rolling line.
" tapping " sequential control of bar plate heating stove, generally follows traditional sequential control pattern, i.e. heating furnace receives
After " automatic tapping " instruction, fire door is begun to ramp up, when (fire door rises under discharge end on headwall for fire door action to " half-open " position
Side, ensures that the tapping arm of extractor can normally advance, and fire door is in continuation " closing " state to end of coming out of the stove at this time) when, stove
Door stops " rising " action, and the tapping arm of extractor starts action of " advancing " at this time, runs to goal-setting position and (is typically
" limit of advancing " position) when, discharging door acts to " standard-sized sheet " position from " half-open " position and stops acting.The tapping of extractor
Arm starts to make " rising " action, holds up the slab heated in stove, and tapping arm is run to the position of " rising in place ", extractor
Tapping arm starts " to retreat " operation to " retreating in place " position, and discharging door is closed, and tapping arm is begun to decline to " decline and stop "
Position, slab are delivered to milling train through delivery roller table, carry out " rolling " technique of next step.
General rolling mill furnace has also been made many relevant Optimization Works in the control aspect of discharging door, has also been reached
Certain energy-saving effect.For example, publication date is on November 19th, 2014, the Chinese invention patent of Publication No. CN104152667A
In application, " a kind of energy-saving control method of recuperative heater discharging door " is disclosed, and the technical solution of this application is meeting
Production technology and under conditions of ensuring equipment safety, devises the control logic sequential of extractor, delivery roller table and discharging door,
The opening time of discharging door can be effectively reduced.
But main problem of the technical solution in implementation process is, goal-setting position is run to from extractor " advance "
It postpones, fire door starts from " half-open " running position to " standard-sized sheet " position, and the tapping arm of extractor is in stove during " rising ", fire door
It is constantly in " standard-sized sheet " state.
Since the temperature of steel rolling mill's slab heating furnace discharging side is more than 1100 DEG C, radiation heat loss is larger, inside and outside stove
Pressure difference causes furnace heat to lose rapidly, and more coal gas that need to burn carry out heat compensation loss, to the energy saving band of heating furnace
To negatively affect.So in energy saving loss, above-mentioned technical proposal there are still it is prodigious can room for improvement.
Invention content
Technical problem to be solved by the invention is to provide a kind of slab heating furnace discharging doors to open sequential control method,
It has re-established discharging door " unlatching " action in " automatic tapping " process under the premise of meeting normal manufacturing technique requirent
In time sequence control logic, and using " calculate extractor tapping arm rising in place after in the forefront place of discharging door
State vertical range of the tapping arm of extractor apart from fire door, then determine that discharging door needs the extreme lower position opened " pattern, really
Discharging door will not be collided by protecting the tapping arm of extractor, to protect equipment safety；Meanwhile minimizing the opening of fire door
Degree reduces thermal loss, shortens the time of fire door " standard-sized sheet " state, can preferably control and heat atmosphere in stove, reduce
Energy loss during heating furnace " automatic tapping ", can further decrease production cost and equipment operation energy consumption.
The technical scheme is that：A kind of slab heating furnace discharging door unlatching sequential control method, including root are provided
According to the normal production technology of bar plate heating stove, the position of the tapping arm according to extractor controls the slab heating furnace discharging stove
The aperture of door；Include the following steps it is characterized in that the discharging door opens sequential control method：
1.1, according to the actual size parameter of bar plate heating stove field device, determine that the discharging door " closing " position is arrived
The distance S0 of the extractor tapping arm lower edge, the distance S1 between, the tapping arm rise the extractor tapping arm above and below
The distance S2 being lifted, discharging door horizontal direction is most after proceeding to maximum position and rising again in place for the extractor tapping arm
Vertical range S3 on inside forward position to lifting fulcrum horizontal direction, the tapping arm of the extractor, which is run to scheduled, " to be risen
Angle theta when position between horizontal roller face in place "；
1.2, the unlatching rational position S of discharging door is determined；
Unlatching rational position S=discharging doors " closing " position of the discharging door to extractor tap arm lower edge away from
Arm is tapped preceding from the S0+ extractors tapping arm distance S2+ extractors that distance S1+ tappings arm rising is lifted between above and below
It enters vertical on discharging door horizontal direction most inner side forward position to lifting fulcrum horizontal direction after maximum position rises in place again
Distance S3, i.e.,
S=S0+S1+S2+S3；
1.3, measure or determine that the extractor tapping arm is run between when " rising in place " position and horizontal roller face
Angle theta；
1.4, the unlatching rational position S of the discharging door and extractor tapping arm are run to " rising in place "
Angle theta when position between horizontal roller face is stored in the produced on-site process control computer of the bar plate heating stove；
1.5, it when production technology starts " automatic tapping " operation, controls the discharging door and carries out " unlatching " operation；
1.6, the open position of the discharging door is detected, " opens and close when the open position of discharging door reaches
When the S of reason position ", suspend " unlatching " operation of discharging door；
1.7, the tapping arm of the extractor carries out normal " advance " operation；
1.8, the position that moves horizontally of the tapping arm is detected, when the front end of tapping arm reaches scheduled " advance
In place " when goal-setting position, stop " advance " operation of tapping arm；
1.9, the tapping arm of the extractor carries out normal " rising " operation, holds up the slab heated in stove；
1.10, the lifting position of the tapping arm is detected, " is risen to when the tapping arm is run to scheduled
Behind the position of position ", stop " rising " operation of tapping arm；
1.11, the control discharging door continues " to open " operation；
1.12, the open position of the discharging door is detected, when the open position of discharging door reaches " standard-sized sheet "
Behind position, stop " unlatching " operation of discharging door；
1.13, the tapping arm for controlling the extractor carries out normal " retrogressing " operation；
1.14, when the tapping arm of extractor passes through " retrogressing " operation operation to scheduled " retreating in place " goal-setting position
When, stop " retrogressing " operation of tapping arm；
1.15, " closing " operation is executed to discharging door；
1.16, normal " decline " operation is carried out to the tapping arm of extractor；
1.17, after arm of tapping is run to scheduled " falling into place " position, stop " decline " operation of tapping arm；
1.18, the slab is delivered to milling train through delivery roller table, carries out " rolling " technique of next step.
Specifically, the extractor is arranged in the outside of discharging door.
Specifically, the upper and lower distance S1 between of the extractor tapping arm is the vertical height of extractor tapping arm.
Specifically, it is that extractor is lifted between crank and extractor tapping arm that the tapping arm, which rises the distance S2 being lifted,
Position of the fulcrum in described tapping arm " rising " operating process the vertical range that is lifted.
Specifically, the lifting fulcrum is the position of the fulcrum between extractor lifting crank and extractor tapping arm.
Specifically, the unlatching rational position of the discharging door, which is discharging door, needs the minimum opened or " rising " operates
Safe distance.
Further, " rising " or " decline " operation of the tapping arm is subtracted by arm lifting driving motor of tapping, first
Speed variator and lifting crank assemblies are realized.
Further, " advance " or " retrogressing " operation of the tapping arm, is subtracted by arm horizontal drive motor of tapping, second
Speed variator and gear-tooth kinematic pair component are realized.
Further, between tapping arm lifting driving motor and the tapping arm horizontal drive motor, if
It is equipped with electrical " interlocking " interlock condition, at a time, only allows tap arm lifting driving motor and tapping arm horizontal drive electricity
Driving motor work operation in machine.
Further, scheduled " advance in place " the goal-setting position, " retreating in place " goal-setting position,
" rising in place " position or " falling into place " position, are determined by production technology and the specific size of field device.
Compared with the prior art, it is an advantage of the invention that：
1. the technical program is by re-establishing discharging door breakdown action sequential, discharging door is with most in tapping process
Rational fire door aperture, shortens fire door wide-open time, reduces energy loss in the automatic tapping process of heating furnace；
2. the technical program can reduce the opening degree of fire door to the maximum extent, thermal loss is reduced.Realize shortening fire door
Wide-open time can be controlled preferably and heat atmosphere in stove, reduce energy loss in the automatic tapping process of heating furnace, further
Reduce production cost.
Description of the drawings
Fig. 1 is the field position relation schematic diagram of extractor and discharging door；
Fig. 2 is relative position schematic diagram of the arm in origin position and when discharging door closed position of tapping；
Fig. 3 is tapping arm when proceeding to setting position and the relative position schematic diagram of discharging door；
Fig. 4 is that fupport arm of tapping rises when slab is lifted to and the relative position schematic diagram of discharging door；
The control flow block diagram of discharging door when Fig. 5 is existing automatic tapping；
The control flow block diagram of discharging door when Fig. 6 is automatic tapping of the invention.
1 is furnace wall in figure, and 2 be discharging door, and 3 be slab, and 4 be tapping arm, and 5 lift crank for tapping arm, and 6 be tapping arm
Translation shaft, M1 are that tapping arm lifts driving motor, and M2 is tapping arm horizontal drive motor；
2-2 is discharging door closed position, and 4-1 is tapping arm upper edge, and 4-2 is tapping arm lower edge, and 4-3 is tapping arm
" advancing in place " goal-setting position, 5-1 are lifting crank fulcrum；
S0 is distance of discharging door " closing " position to extractor tapping arm lower edge, and S1 is that extractor tapping arm is upper and lower
Distance between, S2 are that tapping arm rises be lifted distance, and S3, which is extractor tapping arm, to be risen again proceeding to maximum position
Vertical range after in place on discharging door horizontal direction most inner side forward position to lifting fulcrum horizontal direction, θ tap for extractor
Arm is run to the angle between when " rising in place " position and horizontal roller face.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and examples.
Under " automatic tapping " process operation mode, heating furnace extractor taps arm before entering in heating furnace, discharging
Rational position is arrived in the unlatching sequential of fire door and unlatching, is to ensure that extractor, discharging door body equipment safety and maximum journey
Degree reduces the key of thermal losses.
First, the position relationship for determining extractor tapping arm and discharging door is analyzed, the unlatching for obtaining discharging door is reasonable
Position (S)：
In Fig. 1, extractor is arranged on the outside of discharging door 2, and heating furnace includes at least furnace wall 1 and discharging door 2, adds
There is the slab 3 heated in hot stove.
The extractor of the slab walking beam furnace of applicant enterprise uses gear-tooth formula drive form, extractor
Tapping arm 4 by tapping arm lifting driving motor M1, tapping arm lifting driving motor M2, two corresponding deceleration devices and corresponding
Component respectively drives.
Tapping arm horizontal drive motor M1 therein is driven by tapping arm translation shaft 6 and gear-tooth kinematic pair
" advance " or " retrogressing " of tapping arm, tapping arm lifting driving motor M1 drive tapping arm 4 by driving tapping arm lifting crank 5
" rising " or " decline ".It taps between arm lifting driving motor M2 and the corresponding deceleration device for the arm lifting driving motor M1 that taps
It is not mechanically connected, is acted using the method control device of electrical interlocks.
After heating furnace receives " automatic tapping " instruction, discharging door is begun to ramp up, and the tapping arm of extractor starts " preceding
Into " action, when arm of tapping runs to " advancing in place " goal-setting position, discharging door is opened to " standard-sized sheet " position and is stopped
Breakdown action.The tapping arm of extractor starts work " rising " and acts, and holds up the slab heated in stove, and arm of tapping is run to " rising
Behind position in place ", the tapping arm of extractor starts " to retreat " operation to " retreating in place " position, and discharging door, which declines, closes,
Tapping arm is begun to decline to " decline and stop " position, and slab is delivered to milling train through delivery roller table, carries out " rolling " work of next step
Skill.
In Fig. 2, give during " automatic tapping ", several relative positions of tapping arm 4 and discharging door 2, tapping
Machine tap arm in origin position with the relative position of discharging door " closing " position.
In Fig. 2, S0 is distance of discharging door " closing " position to extractor tapping arm lower edge, and S1 is extractor tapping arm
The upper and lower distance (i.e. the height of extractor tapping arm) between.The lifting fulcrum 5-1 is that extractor is lifted crank and tapping
Position of the fulcrum between machine tapping arm.
As shown in Figure 2 it is found that when tapping arm 4 proceeds to " advancing in place " goal-setting position 4-3, discharging door 2 is opened
Required minimum safe position Smin=S0+S1.
In Fig. 3, tapping arm 4 is given when proceeding to setting position 4-3, the home opened required for discharging door 2
Highly, the setting of home height is to knock discharging door in order to avoid the tapping arm of extractor.
Remaining same Fig. 2.
In Fig. 4, according to the control logic of " automatic tapping " technique, the lifting motor driving lifting crank of extractor tapping arm
And component, extractor tapping arm is slowly raised up to upper.It is held up in stove again after forming certain angle theta with roller-way face (horizontal plane)
Slab prevents slab from falling off and falls stove, meanwhile, θ is as the stroke of advance increases and increases.
In Fig. 4, S2 is that arm of tapping rises be lifted distance, S3 be extractor tapping arm proceed to maximum position again on
It is raised to the vertical range on discharging door horizontal direction most inner side forward position to lifting fulcrum horizontal direction behind position.The lifting branch
Point 5-1 is the position of the fulcrum that extractor is lifted between crank and extractor tapping arm.Remaining same Fig. 2.
In conclusion discharging door opens rational position S=S0+S1+S2+S3 namely discharging door needs are opened most
Small safe distance.
Wherein：
S0 be discharging door " closings " position to extractor tapping arm lower edge distance；
S1 is the extractor tapping arm distance between (i.e. the height of extractor tapping arm) above and below；
S2 is the be lifted distance of arm rising of tapping；
S3 is extractor tapping arm before proceeding to maximum position and rising rear discharging door horizontal direction most inner side in place again
Vertical range on edge to lifting fulcrum 5-1 horizontal directions.
Discharging door control logic when giving original " automatic tapping " shown in Fig. 5.
From figure 5 it can be seen that original control logic has the following disadvantages：
1. tapping during arm " advances ", again " standard-sized sheet ", the fire door full open time is long for discharging door elder generation " half-open ", during this
There is a large amount of thermal loss, meanwhile, fire door " half-open " position is nor most reasonable fire door aperture, there are compressible spaces.
2. arm of tapping, after proceeding to target location and when discharging door be in standard-sized sheet, tapping arm is begun to ramp up, entirely on
The process of liter lasts about 5 seconds, there is amount of heat loss in the process.
In Fig. 6, technical scheme of the present invention re-establishes discharging door breakdown action under the premise of meeting normal production
The time sequence control logic (i.e. discharging door breakdown action sequential) during " automatic tapping ", in tapping process discharging door with
Most rational fire door aperture shortens fire door wide-open time, reduces energy loss in the automatic tapping process of heating furnace.
Specifically, technical scheme of the present invention provides a kind of slab heating furnace discharging door unlatching sequential control method,
Include the normal production technology according to bar plate heating stove, the position of the tapping arm according to extractor controls the bar plate heating stove
The aperture of discharging door；Its inventive point is that the discharging door is opened sequential control method and included the following steps：
1.1, according to the actual size parameter of bar plate heating stove field device, determine that the discharging door " closing " position is arrived
The distance S0 of the extractor tapping arm lower edge, the distance S1 between, the tapping arm rise the extractor tapping arm above and below
The distance S2 being lifted, discharging door horizontal direction is most after proceeding to maximum position and rising again in place for the extractor tapping arm
Vertical range S3 on inside forward position to lifting fulcrum horizontal direction, the tapping arm of the extractor, which is run to scheduled, " to be risen
Angle theta when position between horizontal roller face in place "；
1.2, the unlatching rational position S of discharging door is determined；
Unlatching rational position S=discharging doors " closing " position of the discharging door to extractor tap arm lower edge away from
Arm is tapped preceding from the S0+ extractors tapping arm distance S2+ extractors that distance S1+ tappings arm rising is lifted between above and below
It enters vertical on discharging door horizontal direction most inner side forward position to lifting fulcrum horizontal direction after maximum position rises in place again
Distance S3, i.e.,
S=S0+S1+S2+S3；
1.3, measure or determine that the extractor tapping arm is run between when " rising in place " position and horizontal roller face
Angle theta；
1.4, the unlatching rational position S of the discharging door and extractor tapping arm are run to " rising in place "
Angle theta when position between horizontal roller face is stored in the produced on-site process control computer of the bar plate heating stove；
1.5, it when production technology starts " automatic tapping " operation, controls the discharging door and carries out " unlatching " operation；
1.6, the open position of the discharging door is detected, " opens and close when the open position of discharging door reaches
When the S of reason position ", suspend " unlatching " operation of discharging door；
1.7, the tapping arm of the extractor carries out normal " advance " operation；
1.8, the position that moves horizontally of the tapping arm is detected, when the front end of tapping arm reaches scheduled " advance
In place " when goal-setting position, stop " advance " operation of tapping arm；
1.9, the tapping arm of the extractor carries out normal " rising " operation, holds up the slab heated in stove；
1.10, the lifting position of the tapping arm is detected, " is risen to when the tapping arm is run to scheduled
Behind the position of position ", stop " rising " operation of tapping arm；
1.11, the control discharging door continues " to open " operation；
1.12, the open position of the discharging door is detected, when the open position of discharging door reaches " standard-sized sheet "
Behind position, stop " unlatching " operation of discharging door；
1.13, the tapping arm for controlling the extractor carries out normal " retrogressing " operation；
1.14, when the tapping arm of extractor passes through " retrogressing " operation operation to scheduled " retreating in place " goal-setting position
When, stop " retrogressing " operation of tapping arm；
1.15, " closing " operation is executed to discharging door；
1.16, normal " decline " operation is carried out to the tapping arm of extractor；
1.17, after arm of tapping is run to scheduled " falling into place " position, stop " decline " operation of tapping arm；
1.18, the slab is delivered to milling train through delivery roller table, carries out " rolling " technique of next step.
The unlatching rational position of the discharging door is that discharging door needs the minimum safe distance opened or " rising " operates
From.
Further, scheduled " advance in place " the goal-setting position, " retreating in place " goal-setting position, " on
It is raised to position " position or " falling into place " position, it is determined by production technology and the specific size of field device.
It is existing production Technology, concrete operations since slab is delivered to the technical process of milling train through delivery roller table
Journey no longer describes herein.
Since the slab heating furnace discharging door described in technical solution of the present invention opens sequential control method, by detecting
The position of steel machine tapping arm, considers the running position and run time that tapping arm " rising " operates, to determine the discharging door
Open minimum safe position is needed, thereby shortens the time that discharging door is under " standard-sized sheet " state, passes through and reduces fire door
Opening degree and the full open time, to the maximum extent reduce discharging door opening degree, shorten discharging door be in " standard-sized sheet " shape
The period of state reduces the energy in the bar plate heating stove " automatic tapping " production process to reduce escaping for heat
Source is lost.
It the method can be widely used in the control field of slab Marching type heating stove discharge door for stove and extractor.
Claims (9)
- Include the normal production work according to bar plate heating stove 1. a kind of slab heating furnace discharging door opens sequential control method Skill, the position of the tapping arm according to extractor, controls the aperture of the slab heating furnace discharging door；It is characterized in that described goes out Expect that door opened sequential control method includes the following steps：1.1, according to the actual size parameter of bar plate heating stove field device, determine the discharging door " closing " position described in The distance S0 of extractor tapping arm lower edge, the extractor tapping arm above and below is lifted by the distance S1 between, the tapping arm rising The distance S2 risen, extractor tapping arm discharging door horizontal direction most inner side after proceeding to maximum position and rising again in place The tapping arm of vertical range S3 on forward position to lifting fulcrum horizontal direction, the extractor are run to scheduled " rising in place " Angle theta when position between horizontal roller face；1.2, determine the unlatching rational position S of discharging door；Distance S0 of unlatching rational position S=discharging doors " closing " position of the discharging door to extractor tapping arm lower edge The distance S1+ tapping arm of+extractor tapping arm above and below between rises the distance S2+ extractors tapping arm being lifted and is proceeding to Vertical range after maximum position rises in place again on discharging door horizontal direction most inner side forward position to lifting fulcrum horizontal direction S3, i.e.,S=S0+S1+S2+S3；1.3, measure or determine that the extractor tapping arm is run to the folder between when " rising in place " position and horizontal roller face Angle θ；1.4, the unlatching rational position S of the discharging door and extractor tapping arm are run to " rising in place " position When and horizontal roller face between angle theta be stored in the produced on-site process control computer of the bar plate heating stove；1.5, it when production technology starts " automatic tapping " operation, controls the discharging door and carries out " unlatching " operation；1.6, the open position of the discharging door is detected, when the open position arrival of discharging door " opens reasonable position Set " S when, suspend discharging door " unlatching " operation；1.7, the tapping arm of the extractor carries out normal " advance " operation；1.8, the position that moves horizontally of the tapping arm is detected, when the front end of tapping arm reaches scheduled " advancing in place " When goal-setting position, stop " advance " operation of tapping arm；1.9, the tapping arm of the extractor carries out normal " rising " operation, holds up the slab heated in stove；1.10, the lifting position of the tapping arm is detected, when the tapping arm is run to scheduled " rising in place " Behind position, stop " rising " operation of tapping arm；1.11, the control discharging door continues " to open " operation；1.12, the open position of the discharging door is detected, when the open position of discharging door reaches " standard-sized sheet " position Afterwards, stop " unlatching " operation of discharging door；1.13, the tapping arm for controlling the extractor carries out normal " retrogressing " operation；1.14, when the tapping arm of extractor is by " retrogressing " operation operation to scheduled " retreating in place " goal-setting position, Stop " retrogressing " operation of tapping arm；1.15, " closing " operation is executed to discharging door；1.16, normal " decline " operation is carried out to the tapping arm of extractor；1.17, after arm of tapping is run to scheduled " falling into place " position, stop " decline " operation of tapping arm；1.18, the slab is delivered to milling train through delivery roller table, carries out " rolling " technique of next step.
- 2. slab heating furnace discharging door described in accordance with the claim 1 opens sequential control method, it is characterized in that described goes out Steel machine is arranged in the outside of discharging door.
- 3. slab heating furnace discharging door described in accordance with the claim 1 opens sequential control method, it is characterized in that the tapping The upper and lower distance S1 between of machine tapping arm is the vertical height of extractor tapping arm.
- 4. slab heating furnace discharging door described in accordance with the claim 1 opens sequential control method, it is characterized in that the tapping Arm rises the distance S2 being lifted, and the position of the fulcrum between crank and extractor tapping arm is lifted in the tapping arm for extractor The vertical range being lifted in " rising " operating process.
- 5. slab heating furnace discharging door described in accordance with the claim 1 opens sequential control method, it is characterized in that the lift Ascending branch point is the position of the fulcrum that extractor is lifted between crank and extractor tapping arm.
- 6. slab heating furnace discharging door described in accordance with the claim 1 opens sequential control method, it is characterized in that the discharging The unlatching rational position of fire door is that discharging door needs the minimum safe distance opened or " rising " operates.
- 7. slab heating furnace discharging door described in accordance with the claim 1 opens sequential control method, it is characterized in that the tapping " rising " or " decline " of arm operates, and driving motor, the first deceleration device and lifting crank assemblies are lifted come real by arm of tapping It is existing；" advance " or " retrogressing " operation of the tapping arm, passes through arm horizontal drive motor, the second deceleration device and the gear-of tapping Rack moves subcomponent to realize.
- 8. slab heating furnace discharging door opens sequential control method according to claim 7, it is characterized in that described goes out Steel arm lifts between driving motor and the tapping arm horizontal drive motor, electrical " interlocking " interlock condition is provided with, at certain One moment only allowed tapping arm lifting driving motor and the driving motor work operation in arm horizontal drive motor of tapping.
- 9. slab heating furnace discharging door described in accordance with the claim 1 opens sequential control method, it is characterized in that described predetermined " advance in place " goal-setting position, " retreating in place " goal-setting position, " rising in place " position or " falling into place " position It sets, is determined by production technology and the specific size of field device.
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| CN111822518B (en) * | 2020-06-16 | 2022-06-10 | 首钢京唐钢铁联合有限责任公司 | Method for controlling fine line defects of IF steel edge |
| TWI762408B (en) * | 2021-08-19 | 2022-04-21 | 中國鋼鐵股份有限公司 | Method for burning-off deposited carbon inside coke oven |
| CN115077245A (en) * | 2022-07-15 | 2022-09-20 | 重庆钢铁股份有限公司 | Method for avoiding interference between steel outlet arm and walking beam of extremely narrow stepping type slab furnace |
| CN115466837B (en) * | 2022-08-25 | 2023-12-26 | 北京首钢股份有限公司 | Fire banking control method for furnace door of steel rolling heating furnace |
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| CN103891358A (en) * | 2011-10-28 | 2014-06-25 | 高通股份有限公司 | Systems and methods for fast initial network link setup |
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| CN104567418A (en) * | 2014-12-17 | 2015-04-29 | 秦皇岛首秦金属材料有限公司 | Energy-saving control method for discharge furnace door of heat-accumulating heating furnace |
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