CN109351775A - Blank removing method for continuous casting and rolling production line - Google Patents
Blank removing method for continuous casting and rolling production line Download PDFInfo
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- CN109351775A CN109351775A CN201811177735.6A CN201811177735A CN109351775A CN 109351775 A CN109351775 A CN 109351775A CN 201811177735 A CN201811177735 A CN 201811177735A CN 109351775 A CN109351775 A CN 109351775A
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- picks
- production line
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- 238000005096 rolling process Methods 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 49
- 238000009749 continuous casting Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 60
- 238000005520 cutting process Methods 0.000 claims abstract description 55
- 238000005516 engineering process Methods 0.000 claims description 29
- 238000003801 milling Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000003708 edge detection Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000013459 approach Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 9
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000003032 molecular docking Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009329 sexual behaviour Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
- B23K7/105—Auxiliary devices, e.g. for guiding or supporting the torch specially adapted for particular geometric forms
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Geometry (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a blank rejecting method for a continuous casting and rolling production line, wherein after a blank stops being transported, a first cutting device arranged at a position corresponding to a position between a fixed section and a movable section of a heating furnace enters the heating furnace, a second cutting device arranged at a position corresponding to an outlet of the heating furnace approaches to the blank, the blank is cut by the first cutting device and the second cutting device to obtain a blank to be rejected, the whole blank is trapezoidal, the length of a moving-out side of the blank is greater than that of a non-moving-out side of the blank, and the blank to be rejected is positioned in the movable section; the movable section starts to move until the movable section is butted with the blank removing roller bed; the movable section conveys the plate blank to be removed to a blank removing roller way, and the blank removing roller way moves the plate blank to be removed out of the continuous casting and rolling production line. The plate blank is directly and jointly moved with the movable section after being cut off, an operator does not need to confirm on a cutting site, and the position of the plate blank to be removed does not need to be manually adjusted in a inching mode.
Description
Technical field
The application belongs to sheet billet continuous casting and rolling production line technical field, and in particular to a kind of continuous casting and rolling production line picks base
Method.
Background technique
Domestic sheet billet continuous casting and rolling production line is equipped with single line or two-wire heating furnace at present, and heating furnace is sheet billet
It is connected the key equipment of conticaster and milling train in continuous casting and rolling production line, buffers, add for heating of plate blank or for production line
Hot stove mostly uses roller hearth type heating furnace or induction furnace.According to the fixed form of furnace body, furnace body can be divided into two parts: phase
Fixed section fixed for ground, can be with movable active segment relative to ground.Active segment can be in the way of movement
It is divided into horizontal shifting and two kinds of rotary oscillation, is referred to as traversing section and wobble segment.The main function of setting activity furnace body: when rolling
When machine stops rolling roll change perhaps contingency accident stops rolling or when there is defect slab, by the active segment of heating furnace by slab from
Production line is rejected, so that conticaster does not stop to pour, continuous ejection.
Domestic roller hearth type heating furnace region locating for heating furnace fixed section is (apart from 3~4 meters of active segment entrance or so at present
Position) one flame cutter of installation, install one before milling train and cataclasm cut.It needs to cut slab in process of production
When cutting off line, following steps are taken: (1) slab stop motion；(2) fixed section side wall fire door is opened；(3) flame cutter enters
Heating furnace internal cutting, cuts off slab, and cataclasm cut also executes rupturing operation, and the slab cut is L；(4) gas flame cuttiug in furnace
Rifle exits heating furnace；(5) the slab L cut continues (milling train direction) movement forward, and cataclasm cut continues to cut slab L, slab L
It shortens, after the tail portion of slab L enters active segment, stop motion；(6) active segment starts to move, and exports slab L.
Above-mentioned slab picks line process under base, to the lasting cutting meeting of slab so that slab itself may go out in step (5)
Now slight sliding, the cutting edge of slab is it is possible that cutting deviates, so that slab causes to scratch during removing, furnace
Interior residue slab is scraped tiltedly, while the slab under cutting is also easy to appear inclination, and slab sideslip is caused to hit furnace wall accident.Therefore in step
Suddenly after the completion of (5) cutting, need to manually adjust the position of cutting slab, confirmation slab after scratch without just removing in furnace.Thus it makes
Heavy workload is adjusted at slab position, and operator is needed to nurse at the scene, elapsed time is long, and slab needs are repeatedly cut
It cuts, rejects slab low efficiency.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of continuous casting and rolling production lines to pick blank technology, it is not necessarily to manual point
Dynamic adjustment slab position, effectively shortens slab downtime, improves the offline efficiency of slab.
Realize that technical solution used by the object of the invention is, a kind of continuous casting and rolling production line picks blank technology, the continuous casting
Continuous rolling production line includes conticaster, heating furnace and the milling train set gradually by slab conveying direction, and the heating furnace includes fixing
Section and active segment；The blank technology that picks includes the following steps:
(1) outside the heating furnace between the fixed section and the active segment the first cutting of corresponding position installation dress
It sets, the second cutter device, the first cutting dress are installed in position corresponding with the outlet of the heating furnace outside the heating furnace
It sets, the cut direction of at least one in second cutter device and have perpendicular between the direction in the mat conveyor direction
Angle α, the angle α are no more than 20 °；The mat conveyor direction is mounted parallel to outside the heating furnace picks blank roller way；
(2) stop transporting the slab, first cutter device enters in the heating furnace, while second cutting
Device is close to the slab, cuts the slab by first cutter device and second cutter device, obtain to
Slab is rejected, the slab to be rejected is located in the active segment, and the slab to be rejected is trapezoidal, and the plate to be rejected
The nearly length for picking blank roller way side of base is greater than far from the length for picking blank roller way side；
(3) active segment starts to move, and is moved to the active segment and docks with the blank roller way that picks；
(4) active segment by the slab to be rejected be delivered to it is described pick on blank roller way, the blank roller way that picks will be described
Slab to be rejected removes the continuous casting and rolling production line.
Further, in step (1), first cutter device and second cutter device are mounted on the heating
The side that blank roller way is picked described in of furnace.
Further, in step (1), the cut direction of first cutter device and second cutter device with hang down
Directly there is angle α between the direction in the mat conveyor direction, the angle α is 1 °~10 °.
Further, described by described in first cutter device and second cutter device cutting in step (2)
Slab, comprising:
Slab described in first cutter device and the equal inclined cut of the second cutter device.
Further, first cutter device is specially flame cutter；Second cutter device is specially flame
Cutting gun or mechanical shear.
Further, first cutter device and second cutter device are flame cutter.
Further, described by described in first cutter device and second cutter device cutting in step (2)
Slab, comprising:
The flame cutter carries out edge detection to the slab；
When the flame cutter detects the edge of the slab, the flame cutter igniting preheats the plate
Base；
The flame cutter cuts the slab.
It is further, described to obtain after rejecting slab in step (2), further includes:
First cutter device exits the heating furnace, and second cutter device retracts original position.
Further, in step (3), the active segment starts to move, and is moved to the active segment with described and picks blank roller way
Docking, comprising:
The active segment is can be with traversing section of horizontal shifting relative to ground, and described traversing section along removal direction water
Translation is dynamic, is moved to described traversing section and docks with the blank roller way that picks.
Further, in step (3), the active segment starts to move, and is moved to the active segment with described and picks blank roller way
Docking, comprising:
The active segment is that can be revolved with the wobble segment of rotary oscillation, the wobble segment along the removal direction relative to ground
Switch is dynamic, is rocked to the wobble segment and docks with the blank roller way that picks.
As shown from the above technical solution, the present invention by be mounted at a certain angle with heating furnace fixed section and active segment it
Between corresponding position the first cutter device, and be mounted at a certain angle position corresponding with furnace outlet second cutting
Device cuts slab jointly, when production line breaks down, can realize one by the first cutter device and the second cutter device
Step cutting, primary cutting, which can be obtained, meets the offline slab for requiring length, and the slab to be rejected under cutting is located at active segment
On, confirm without operator to cleavable site, saves human cost.
Since the first cutter device and/or the second cutter device are using inclination installation, cut beveling and cut so that slab to be rejected
It is trapezoidal, and slab to be rejected is greater than far from picking blank roller way side (non-removal side) close to picking blank roller way side (remove side) length
Length can completely avoid slab to be rejected and scratch with slab remaining in furnace, and there is no need to manual crawls to adjust slab position
It sets.Slab to be rejected is directly offline with active segment, and active segment can be docked with blank roller way is picked, and the slab to be rejected under cutting is by picking base
Roller-way is rejected, and the operation for influencing entire sheet billet continuous casting and rolling production line is avoided.It is raw compared to traditional thin slab continuous casting and rolling
Producing line slab inserting-coil process, continuous casting and rolling production line provided by the invention, which picks blank technology, can effectively shorten slab downtime,
Improve the offline efficiency of slab.
Detailed description of the invention
Fig. 1 is the flow chart that continuous casting and rolling production line picks blank technology in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of continuous casting and rolling production line in the embodiment of the present invention；
Fig. 3 is the procedure chart one for picking base operation；
Fig. 4 is the procedure chart two for picking base operation；
Fig. 5 is the structural schematic diagram of sealing device.
Description of symbols: 10- slab, 1a- slab to be rejected, remaining slab in 1b- furnace；20- heating furnace, 1- are fixed
Section, 2- active segment, 3- sealing device, 31- seal frame, 32- refractory lining, 33- cut port, and 34- cuts fire door, 35- rib
Plate, 36- connecting plate, 4- pick blank roller way, the first cutter device of 5-, the second cutter device of 6-；30- milling train.
Specific embodiment
In order to make the application the technical staff in the technical field be more clearly understood that the application, with reference to the accompanying drawing,
Technical scheme is described in detail by specific embodiment.
In embodiments of the present invention, a kind of continuous casting and rolling production line picks blank technology, is applied to thin slab continuous casting and rolling and produces
Line, the continuous casting and rolling production line include conticaster, heating furnace and the milling train set gradually by slab conveying direction, and heating furnace includes
Relative to the fixed fixed section in ground and can be with movable active segment relative to ground.When milling train stops rolling roll change or accidentally
Sexual behavior thus when stopping rolling, or when there is defect slab, slab is rejected from production line so that conticaster does not stop to pour, continuous ejection.
Referring to Fig. 1, which picks blank technology and includes the following steps:
S101, the first cutter device is installed in corresponding position between fixed section and active segment outside heating furnace, heating
Furnace the second cutter device of outer position installation corresponding with the outlet of heating furnace, in the first cutter device, the second cutter device at least
One cut direction and perpendicular between the direction in mat conveyor direction have angle α；Plate is mounted parallel to outside heating furnace
Base transporting direction picks blank roller way；
S102, stop transport slab, the first cutter device enters in heating furnace, while the second cutter device is leaned on to slab
Closely, slab is cut by the first cutter device and the second cutter device, cuts slab, obtains slab to be rejected, slab to be rejected
In active segment, slab to be rejected is trapezoidal, and slab to be rejected is big close to the length for picking blank roller way side (removing side)
In far from the length for picking blank roller way side (non-removal side)；
S103, active segment start to move, and are moved to active segment and dock with blank roller way is picked；
Slab to be rejected is delivered to and picks on blank roller way by S104, active segment, picks blank roller way for slab to be rejected and removes continuous casting
Continuous rolling production line.
Continuous casting and rolling production line provided by the invention picks blank technology, after slab is cut off, slab to be rejected directly with work
Dynamic section moves jointly, confirms without operator to cleavable site, adjusts slab position without manual crawl, picks compared to traditional
Base technique, saves labour, effectively shortens and picks the base time, and base efficiency is picked in raising.
Below in conjunction with a specific sheet billet continuous casting and rolling production line, continuous casting and rolling production line provided by the invention is picked
Blank technology is described in detail:
Referring to fig. 2, which includes successively setting by slab conveying direction (direction shown in arrow a in Fig. 2)
Conticaster (not shown), heating furnace 20 and the milling train 30 set, heating furnace 20 play linking between conticaster and milling train 30
Effect, heating furnace 20 includes that can be added relative to the fixed fixed section 1 in ground and relative to ground with movable active segment 2
It is equipped with outside hot stove 20 and picks blank roller way 4, the first cutter device 5 and the second cutter device 6, wherein the first cutter device 5 and second
Cutter device 6 is for cutting off slab 10；The transporting direction (direction shown in arrow a in Fig. 1) that blank roller way 4 is parallel to slab is picked,
For being that slab 1a to be rejected is rejected by the slab of cutting, slab 1a to be rejected exits sheet billet continuous casting and rolling production line, heats
The active segment 2 of furnace can switch between the position for picking blank roller way 4 in the position of docking fixed section 1 with docking.
In the present embodiment, heating furnace 20 uses roller hearth type heating furnace, and fixed section 1 docks conticaster, and the linking of active segment 2 is rolled
Machine 30, active segment 2 can be divided into horizontal shifting and two kinds of rotary oscillation in the way of movement, are referred to as traversing section and swing
Section, in the present embodiment, active segment 2 is specially can be with traversing section of horizontal shifting relative to ground.Traversing section is double-layer structure: on
Layer is rollgang, and rollgang rotates forward, and slab 10 is delivered to milling train forward (direction shown in arrow a in Fig. 2)；Lower layer is vehicle
The running gear of wheel etc is moved horizontally traversing section to direction (direction shown in arrow b in Fig. 2) is removed by running gear.
It picks blank roller way 4 to be parallel to the transporting direction of slab and be arranged, uses traversing section by active segment 2 in this present embodiment,
Therefore picking blank roller way 4 can be arranged in parallel in by fixed section 1, and when carrying out slab 1a transhipment, then rollgang inverts.Pick blank roller way
4 can also be arranged in parallel in by milling train 30, and when carrying out slab 1a transhipment, then rollgang rotates forward.In other embodiments, active segment
2 can also be used wobble segment, then picking blank roller way 4 must be set to by milling train 30 along the mat conveyor direction after the swing of active segment 2.
The installation site of first cutter device 5 corresponds between fixed section 1 and active segment 2, since the first cutter device 5 is wanted
20 furnace internal cutting off slab 10 of heating furnace is protruded into, therefore the first cutter device 5 uses flame cutter, due to the first cutter device 5
It is mounted between heating furnace fixed section 1 and active segment 2, therefore does not need setting in heating furnace fixed section 1 for the first cutter device
The fire door of disengaging, so that the structure of heating furnace fixed section 1 is more complete, firm；The installation site of second cutter device 6, which corresponds to, to be added
The exit of hot stove 20 corresponds specifically between heating furnace 20 and milling train 30, and the second cutter device 6 uses flame cutter or machine
Tool is cut.The cut direction of at least one in the first cutter device 5, the second cutter device 6 is relative to perpendicular to mat conveyor
The direction in direction tilts, and the slab 1a that the cut direction of the first cutter device 5 and the second cutter device 6 meets cutting is trapezoidal,
And the removal side length of the slab 1a cut off is greater than non-removal side length.
As shown in Figure 3 and Figure 4, in the present embodiment, the first cutter device 5 and the second cutter device 6 are respectively positioned on heating furnace 20
Traversing section of removal direction side, and the cut direction of the first cutter device 5 and the second cutter device 6 is both with respect to vertical
It is tilted in the direction in mat conveyor direction, the inclined direction of the first cutter device 5 and the second cutter device 6 is on the contrary, i.e. first cuts
Cut device 5 and the second cutter device 6 relative to traversing section of central axes perpendicular bisector be symmetrical arranged, the two with perpendicular to mat conveyor
Angle α between the direction in direction is no more than 20 °, preferably 1 °~10 ° of angle α.Such first cutter device 5 and the second cutting
The slab 1a to be rejected that device 6 is cut is trapezoidal, preferably isosceles trapezoid, and the removal side of slab 1a to be rejected is (close to pick
Blank roller way side is trapezoidal bottom edge) length is greater than non-removals side (far from picking blank roller way side, for trapezoidal top margin) length.
In other embodiments, the first cutter device 5 and the second cutter device 6 can also be respectively positioned on traversing section of heating furnace 20
The opposite side in removal direction or the first cutter device 5 and the second cutter device 6 are located at the two sides of heating furnace 20.First
The slab to be rejected that the cut direction of cutter device 5 and the second cutter device 6 satisfaction is cut is trapezoidal, and slab to be rejected
It removes side length and is greater than non-removal side length.
It is that 3mm~5mm has 2 after the completion of slab cutting that gas flame cuttiug technology, which can control slab cutting slit width degree, at present
Uncontrollable factor occurs: 1, edge is cut it is possible that the cutting of 3mm or so deviates, and some cut surface out-of-flatnesses occurs
Situation；2, slab itself causes slab to be bonded at slot it is possible that slight sliding.If slab is used and is vertically cut
It cuts, after above-mentioned two factor occurs, the slab of cutting will cause to scratch during removing, slab remaining in furnace is scraped tiltedly,
Slab sideslip is caused to hit furnace wall accident.Using the life of vertical cutting (cut direction of cutter device is perpendicular to mat conveyor direction)
Producing line after the completion of cutting, needs to manually adjust the position of cutting slab, confirmation slab after scratch without just removing in furnace.This implementation
Example uses inclined cut, and removal side (trapezoidal bottom edge) length of the slab 1a cut off is long greater than non-removal side (trapezoidal top margin)
Degree, during slab 1a is removed, the both ends of slab 1a are more and more remoter at a distance from remaining slab 1b slot, even if having occurred
2 above-mentioned uncontrollable factors, slab 1a will not scratch during removal, not need to manually adjust cutting slab
Position.
Since the first cutter device 5 is between fixed section 1 and active segment 2, then setting is not needed on fixed section 1 for the
The fire door of one cutter device 5 disengaging, correspondingly, the spacing between fixed section 1 and active segment 2 needs to increase, about 230mm, due to
Heating furnace in-furnace temperature will keep stable, therefore the spacing increased between fixed section 1 and active segment 2 will lead to furnace heat and dissipate
It loses, to avoid this situation, sealing device 3 is installed, for closing fixed section 1 and active segment 2 between fixed section 1 and active segment 2
Between gap, to reduce the heat loss of heating furnace.
As shown in figure 5, offering cutting port 33 on sealing device 3, the first cutter device 5 is entered by cutting port 33
In 20 furnace of heating furnace, slab 10 is cut, cuts and openable cutting fire door 34, flame cutter is installed on port 33
Before in into furnace, cutting fire door 34 is opened, after flame cutter exits in furnace, closes cutting fire door 34.
Sealing device 3 includes seal frame 31 and refractory lining 32, and refractory lining 32 is set to the interior table of seal frame 31
Face, in the present embodiment, seal frame 31 is steel construction, and refractory lining 32 is served as a contrast using refractory fibre, slows down furnace high-temperature and fire
Ablation of the flame cutting gun to steel construction.On 31 inner surface of seal frame, i.e., it is provided on inner bottom surface and two sides medial surface
Multiple equally distributed floors 35, for the rigidity and stabilization of reinforced frame.The shape of seal frame 31 and the entrance of active segment 2
Cross sectional shape matches, on the wherein one side of the outer surface of seal frame 31, along Vertical Square on specially non-removal side side
It is with threaded hole on connecting plate 36 to being uniformly distributed 2~7 connecting plates being horizontally mounted 36, sealing is filled by threaded fastener
3 are set to connect with the furnace shell of active segment 2.Sealing device 3 is detachably connected with active segment 2 using threaded fastener, in refractory lining
Or when being damaged at cutting fire door, sealing device can be replaced, it is easy to maintenance.
Above-mentioned sheet billet continuous casting and rolling production line picks blank technology using continuous casting and rolling production line of the invention and carries out picking base behaviour
When making, the first cutter device 5 and the second cutter device 6 are all made of flame cutter, and flame cutter uses the control of PLC programmable
Device control processed.Referring to Fig. 3 and Fig. 4, picking blank technology, specific step is as follows:
(1) 10 stop motion of slab in heating furnace 20；
(2) the cutting fire door 34 of sealing device 3 is opened, the first cutter device 5 enters in heating furnace, while furnace outlet
The second cutter device 6 that corresponding position is installed between milling train is close to slab 10, is cut by the first cutter device 5 and second
6 inclined cut slab 10 of device is cut, slab 1a to be rejected is obtained, slab 1a to be rejected is trapezoidal, removes side length greater than non-
Side length is removed, the slab 1a to be rejected cut is located in active segment 2；
First cutter device 5 and the second cutter device 6 are all made of flame cutter, pass through 5 He of the first cutter device
Second cutter device 6 cuts slab, specific steps are as follows:
After the cutting instruction for receiving PLC programmable controller, flame cutter carries out edge detection to slab 10,
When flame cutter detects the edge of slab 10, flame cutter igniting preheats slab, preheats after a certain period of time, flame
Cutting gun cuts slab 10；
(3) after the completion of cutting, the first cutter device 5 in furnace exits heating furnace, returns in situ, the second cutter device 6
Original position is retracted simultaneously；
First cutter device 5 and the second cutter device 6 are all made of flame cutter, after the completion of cutting, close gas flame cuttiug
The corresponding energy medium solenoid valve of rifle, flame cutter are returned and are parked on original position, wait cutting instruction next time；
(4) active segment 2 starts to move:
When active segment 2 be can be with traversing section of horizontal shifting relative to ground when, traversing section will be along removing direction (in Fig. 3
Direction shown in arrow b) it moves horizontally, it is moved to traversing section and is docked with blank roller way 4 is picked；
When active segment 2 is that can be put with the wobble segment of rotary oscillation, wobble segment along direction rotary oscillation is removed relative to ground
It moves to wobble segment and is docked with blank roller way 4 is picked；
Slab 1a to be rejected is located in active segment 2, and when active segment 2 is mobile, slab 1a to be rejected is moved, due to
Rejecting the both ends slab 1a slot is inclined-plane, with the removal of slab 1a to be rejected, slab 1a to be rejected and slab remaining in furnace
Gap is increasing between 1b, as shown in figure 3, slab 1a to be rejected will not scratch with residue slab 1b in furnace；
(5) active segment 2 be moved to the position picking blank roller way 4 and dock, due to active segment 2 be can be horizontal relative to ground
Traversing traversing section picks blank roller way 4 and is arranged in parallel in by fixing end 1, thus rollgang invert, will slab 1a be rejected it is reversed
(direction shown in arrow c in Fig. 4) is delivered to and picks blank roller way 4, as shown in Figure 4；
It when active segment 2 is wobble segment, or picks blank roller way 4 and is arranged in parallel in by milling train 30, then rollgang rotates forward, will be to
Slab 1a is rejected to be delivered to along slab conveying direction (direction shown in arrow a in Fig. 2) and pick blank roller way 4；
(6) it picks blank roller way 4 and slab 1a to be rejected is removed into sheet billet continuous casting and rolling production line, complete entirely to pick base process.
Through the foregoing embodiment, the invention has the advantages that advantage:
1) continuous casting and rolling production line provided by the invention picks blank technology, corresponding between heating furnace fixed section and active segment
Position the first cutter device is installed at a certain angle, install second at a certain angle in position corresponding with furnace outlet and cut
Cut device；When production line breaks down, step cutting can be realized by the first cutter device and the second cutter device, be not necessarily to
Operator confirms to cleavable site, saves human cost.
2) continuous casting and rolling production line provided by the invention picks blank technology, and the first cutter device and the second cutter device are all made of
Inclination installation, so that slab to be rejected is trapezoidal, and the removal side length of slab to be rejected is greater than non-removal side length, even if
2 above-mentioned uncontrollable factors have occurred, slab will not scratch during removal, not need to manually adjust cutting plate
The position of base.Inclined cut can completely avoid remaining slab in the slab and furnace of cutting and scratch, and there is no need to manual points
Dynamic adjustment slab position, compared to traditional sheet billet continuous casting and rolling production line coil inserting apparatus, continuous casting and rolling provided by the invention
Production line, which picks blank technology, can effectively shorten slab downtime, improve the offline efficiency of slab.
3) continuous casting and rolling production line provided by the invention picks blank technology, by changing the installation site of the first cutter device,
The first cutter device, the first cutter device are installed at a certain angle in position corresponding between heating furnace fixed section and active segment
It once cuts can be obtained with the second cutter device and meets the offline slab for requiring length, need cataclasm cut compared with the prior art
Continue to cut slab, can make that slab L shortens, tail portion enters active segment, the slab to be rejected under present invention cutting is ascended the throne
In on active segment, can directly be removed with active segment.
Although the preferred embodiment of the application has been described, but one of ordinary skilled in the art once knows substantially
Creative concept, then additional changes and modifications may be made to these embodiments.It is wrapped so the following claims are intended to be interpreted as
It includes preferred embodiment and falls into all change and modification of the application range.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of continuous casting and rolling production line picks blank technology, the continuous casting and rolling production line includes setting gradually by slab conveying direction
Conticaster, heating furnace and milling train, the heating furnace includes fixed section and active segment, which is characterized in that described to pick blank technology packet
Include following steps:
(1) the first cutter device is installed in corresponding position between the fixed section and the active segment outside the heating furnace,
The second cutter device of position installation corresponding with the outlet of the heating furnace outside the heating furnace, first cutter device,
The cut direction of at least one in second cutter device and perpendicular between the direction in the mat conveyor direction have folder
Angle α, the angle α are no more than 20 °；The mat conveyor direction is mounted parallel to outside the heating furnace picks blank roller way；
(2) stop transporting the slab, first cutter device enters in the heating furnace, while second cutter device
It is close to the slab, the slab is cut by first cutter device and second cutter device, is obtained wait reject
Slab, the slab to be rejected are located in the active segment, and the slab to be rejected is trapezoidal, and the slab to be rejected
The nearly length for picking blank roller way side is greater than far from the length for picking blank roller way side；
(3) active segment starts to move, and is moved to the active segment and docks with the blank roller way that picks；
(4) active segment by the slab to be rejected be delivered to it is described pick on blank roller way, it is described to pick blank roller way for described wait pick
Except slab removes the continuous casting and rolling production line.
2. continuous casting and rolling production line as described in claim 1 picks blank technology, it is characterised in that: in step (1), described first is cut
It cuts device and second cutter device is mounted on the side for picking blank roller way described in of the heating furnace.
3. continuous casting and rolling production line as described in claim 1 picks blank technology, it is characterised in that: in step (1), described first is cut
The cut direction for cutting device and second cutter device has folder between the direction perpendicular to the mat conveyor direction
Angle α, the angle α are 1 °~10 °.
4. continuous casting and rolling production line as claimed in claim 3 picks blank technology, it is characterised in that: described to pass through institute in step (2)
It states the first cutter device and second cutter device cuts the slab, comprising:
Slab described in first cutter device and the equal inclined cut of the second cutter device.
5. continuous casting and rolling production line as described in claim 1 picks blank technology, it is characterised in that: first cutter device is specific
For flame cutter；Second cutter device is specially flame cutter or mechanical shear.
6. continuous casting and rolling production line as claimed in claim 5 picks blank technology, it is characterised in that: first cutter device and institute
Stating the second cutter device is flame cutter.
7. continuous casting and rolling production line as claimed in claim 6 picks blank technology, it is characterised in that: described to pass through institute in step (2)
It states the first cutter device and second cutter device cuts the slab, comprising:
The flame cutter carries out edge detection to the slab；
When the flame cutter detects the edge of the slab, the flame cutter igniting preheats the slab；
The flame cutter cuts the slab.
8. continuous casting and rolling production line as described in claim 1 picks blank technology, it is characterised in that: in step (2), it is described obtain to
After rejecting slab, further includes:
First cutter device exits the heating furnace, and second cutter device retracts original position.
9. continuous casting and rolling production line as described in claim 1 picks blank technology, it is characterised in that: in step (3), the active segment
Start to move, be moved to the active segment and docked with the blank roller way that picks, comprising:
The active segment is that can be moved with traversing section of horizontal shifting, described traversing section along the removal direction level relative to ground
It is dynamic, it is moved to described traversing section and is docked with the blank roller way that picks.
10. continuous casting and rolling production line as described in claim 1 picks blank technology, it is characterised in that: in step (3), the activity
Section starts to move, and is moved to the active segment and docks with the blank roller way that picks, comprising:
The active segment is that can rotate pendulum along the removal direction with the wobble segment of rotary oscillation, the wobble segment relative to ground
It is dynamic, it is rocked to the wobble segment and is docked with the blank roller way that picks.
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| CN201811177735.6A CN109351775B (en) | 2018-10-10 | 2018-10-10 | Blank removing method for continuous casting and rolling production line |
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| CN201811177735.6A CN109351775B (en) | 2018-10-10 | 2018-10-10 | Blank removing method for continuous casting and rolling production line |
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