CN109226707A - A kind of fan-shaped segmentation of bloom - Google Patents
A kind of fan-shaped segmentation of bloom Download PDFInfo
- Publication number
- CN109226707A CN109226707A CN201811367205.8A CN201811367205A CN109226707A CN 109226707 A CN109226707 A CN 109226707A CN 201811367205 A CN201811367205 A CN 201811367205A CN 109226707 A CN109226707 A CN 109226707A
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- frame
- upper roller
- speed reducer
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000011218 segmentation Effects 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 24
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 4
- 230000000881 depressing effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 3
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 238000009749 continuous casting Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
Abstract
The invention discloses a kind of fan-shaped segmentations of bloom, including frame, the top two sides of the frame are respectively fixed with hydraulic cylinder, and the output end of the hydraulic cylinder is connected with connection frame, the bottom end of the connection frame and upper roller assembly connection, and the upper roller assembly is arranged in the frame, the hydraulic cylinder can drive the upper roller to be assemblied in the frame and move up and down by the connection frame, it is additionally provided with lower roll assembly in the lower section of upper roller assembly in the frame, the frame is externally provided with the transmission system for driving the upper roller assembly and lower roll assembly rotation.A kind of fan-shaped segmentation of bloom disclosed by the invention, pass through the pressure of hydraulic cylinder and the driving of transmission system, dummy ingot and throwing can be sent in certain period of time, shorten the length of dummy bar, the plant area occupied is small, slab can be depressed by setting the operating pressure of pressure cylinder, improve the tissue defects inside slab, improve slab quality.
Description
Technical field
The present invention relates to a kind of fan-shaped segmentation, the fan-shaped segmentations of specifically a kind of bloom.
Background technique
The complete continuous casting machine of bloom of iron and steel enterprise is modernized along casting direction, ladle is followed successively by down from upstream and returns
Turntable, crystallizer, 1 section fan-shaped, 2 sections fan-shaped, 3 sections fan-shaped, idler roller section, withdrawal straightening machine, cuts preceding de- ingot roller-way, cutting at intermediate tundish carriage
Roller-way, cut roller, conveyor roller, machine for moving steel, rear portion cold bed etc..These equipment, which combine, completes molten steel continuous casting solidification
The technique for forming and being cut into specific length slab.Wherein 1 section fan-shaped, 2 sections fan-shaped, fan-shaped 3 sections, idler roller section, withdrawal straightening stands
Cheng Zhuliu guidance system.
At present in the large square bland continuous-casting machine casting stream guidance system in steel plant continuous casting workshop fan-shaped 3 sections without press function and
The free roll pattern of belt transmission system, such disadvantage do not have:
One: support and guiding role are only played when sending dummy ingot and throwing, dummy ingot pole length is very long thus.The design of dummy bar
Length need to be under crystallizer mouth (normally entering mouth 300mm under crystallizer) to inside withdrawal straightening machine (usual withdrawal straightening machine is 5~7 framves, until
Few 2 frame withdrawal straightening machines clamp dummy bar)；
Two: after deingot, dummy bar needs to be stored in roller-way side or hangs on line, in order to there is enough operations empty
Between, the total length of cut roller and conveyor roller is greater than the length of dummy bar, and in other words dummy ingot pole length is to a certain degree
On affect the length and plant area of rear portion roller-way；
Three: certain by haveing the defects that inside fan-shaped 3 sections of continuous casting billet structure.
Summary of the invention
According to technical problem set forth above, and provide a kind of for a kind of fan-shaped segmentation of fan-shaped 3 sections of bloom.This
It is as follows to invent the technological means used:
A kind of bloom fan-shaped segmentation, including frame, the top two sides of the frame are respectively fixed with hydraulic cylinder, described
The output end of hydraulic cylinder is located at the bottom of the hydraulic cylinder, and the output end of the hydraulic cylinder is connected with connection frame, and the company
It connects frame to be arranged in the frame, the bottom end of the connection frame and upper roller assembly connection, and upper roller assembly is arranged described
In frame, the hydraulic cylinder can drive the upper roller to be assemblied in the frame and move up and down by the connection frame；The frame
Lower roll assembly is additionally provided in the lower section of upper roller assembly in frame；The hydraulic cylinder by the flexible drive of cylinder rod itself it is described on
Roller is assemblied in the frame and moves up and down, and moves up to allow dummy bar and slab to pass through, moves downward to clamp
Dummy bar or slab send dummy ingot or throwing.
One end of the upper roller assembly and lower roll assembly, which is keyed, speed reducer I；
The frame is externally provided with the transmission system for driving the upper roller assembly and lower roll assembly rotation, the power train
System is connect with the speed reducer I.
The transmission system includes pedestal, and the pedestal is in double-layer structure, is all provided in the upper and lower of the pedestal solid
Surely there are speed reducer II, motor and the encoder matched with the motor；The motor is variable-frequency motor；
In the upper layer of the pedestal: the encoder is connect with the motor, and the output end of the motor passes through shaft coupling
Device is connect with the input terminal of speed reducer II, and the output end of the speed reducer II and one end of universal-joint spindle connect, the Universal connector
The other end of axis and the speed reducer I being keyed with upper roller assembly are connect；
In the lower layer of the pedestal: the encoder is connect with the motor, and the output end of the motor passes through shaft coupling
The connection of one end of device and coupling spindle, and the other end of the coupling spindle is connected by the input terminal of shaft coupling and the speed reducer II
It connects, the output end of the speed reducer II and the universal-joint spindle connecting with the input terminal of lower roll assembly connect.Due to 3 sections fan-shaped
Local environment high temperature and humidity, so making the motor, the encoder, the shaft coupling be in high temperature height using universal-joint spindle
Outside wet environment；Since space layout limits, therefore a driving coupling spindles more than the driving that upper roller is assembled for lower roll assembly.
Because sending the pulling rate of dummy ingot speed and different steel grade different sizes different, the present invention uses variable-frequency motor and volume
Code device, can adjust the revolving speed of motor.
The hydraulic cylinder has the pressure sensor matched with the hydraulic cylinder, and in the oil supply loop of the hydraulic cylinder
Pressure reducing valve platform equipped with the pressure value for adjusting the hydraulic cylinder.The calculation formula of the pressure value of hydraulic cylinder after the adjusting of pressure reducing valve platform
Are as follows:
P=4F/ π (D2-d2)
F=F1+F2
F2=ρ HSW
In formula, P is the pressure value of hydraulic cylinder, and F is throwing pressure, F1For bulge power, F2For the pressure for overcoming resistance of deformation
Power, W are slab width, and S is roll spacing, δ be shell thickness δ, S be roll spacing,It is steel grade resistance of deformation for roller diameter, σ, h is steel grade
The unit length drafts of permission, wherein D is the internal diameter of hydraulic cylinder, and d is the piston rod diameter of hydraulic cylinder, and ρ is molten steel density, and H is
Vertical height of the calculating position away from liquid steel level.
The invention has the following advantages that
1, the fan-shaped segmentation of a kind of bloom of the design, passes through the pressure of hydraulic cylinder and the driving of transmission system, energy
It is enough to send dummy ingot and throwing in certain period of time, shorten the length (mouth extends to 3 sections fan-shaped under crystallizer) of dummy bar, rear portion roller
Road also accordingly shortens, and the plant area occupied also accordingly reduces, and has saved the Meteorological of equipment to a certain extent.
2, the design can depress slab by setting the operating pressure of pressure cylinder, reduce the center segregation inside slab
And center porosity improves slab quality so as to improve the tissue defects inside slab.
The present invention can be widely popularized in bloom with fan-shaped segmentation field based on the above reasons.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of fan-shaped segmentation main view of bloom in the specific embodiment of the invention.
Fig. 2 is a kind of fan-shaped segmentation side view of bloom in the specific embodiment of the invention.
Fig. 3 is transmission system main view in the specific embodiment of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1-Figure 3, a kind of bloom fan-shaped segmentation, including frame 1, the top two sides difference of the frame 1
It is fixed with hydraulic cylinder 2, the output end of the hydraulic cylinder 2 is located at the bottom of the hydraulic cylinder 2, and the output end of the hydraulic cylinder 2
It is connected with connection frame 3, and the connection frame 3 is arranged in the frame 1, the bottom end of the connection frame 3 and upper roller assembly 4 connect
It connects, and upper roller assembly 4 is arranged in the frame 1, the hydraulic cylinder 2 can drive the upper roller by the connection frame 3
Assembly 4 moves up and down in the frame 1；Lower roll assembly 5 is additionally provided in the lower section of upper roller assembly 4 in the frame 1；Institute
It states hydraulic cylinder 2 to move up and down in the frame 1 by the flexible drive upper roller assembly 4 of cylinder rod itself, moves up use
To allow dummy bar and slab to pass through, moves downward to clamp dummy bar or slab and send dummy ingot or throwing.
One end of the upper roller assembly 4 and lower roll assembly 5, which is keyed, speed reducer I 6；
The frame 1 is externally provided with the transmission system for driving 5 rotation of the upper roller assembly 4 and lower roll assembly, the biography
Dynamic system is connect with the speed reducer I 6.
The transmission system includes pedestal 7, and the pedestal 7 is in double-layer structure, is all provided in the upper and lower of the pedestal 7
It is fixed with speed reducer II 8, motor 9 and the encoder 10 matched with the motor 9；The motor 9 is variable-frequency motor；
In the upper layer of the pedestal 7: the encoder 10 is connect with the motor 9, and the output end of the motor 9 passes through
Shaft coupling 11 is connect with the input terminal of the speed reducer II 8, and the output end of the speed reducer II 8 and one end of universal-joint spindle 12 connect
It connects, the other end of the universal-joint spindle 12 and the speed reducer I 6 being keyed with upper roller assembly 4 are connect；
In the lower layer of the pedestal: the encoder 10 is connect with the motor 9, and the output end of the motor 9 passes through
Shaft coupling 11 is connect with one end of coupling spindle 13, and the other end of the coupling spindle 13 passes through shaft coupling 11 and the speed reducer II
8 input terminal connection, the output end of the speed reducer II 8 and the universal-joint spindle 12 being connect with the input terminal of lower roll assembly 5
Connection.Due to fan-shaped 3 sections of local environment high temperature and humidity, so using universal-joint spindle 12, make the motor 9, the encoder 10,
The shaft coupling 11 and the coupling spindle 13 are in outside hot and humid environment；
Since space layout limits, therefore the more coupling spindles of driving of the driving of lower roll assembly than upper roller assembly 4.
Because sending the pulling rate of dummy ingot speed and different steel grade different sizes different, the present invention uses 9 He of variable-frequency motor
Encoder 10 can adjust the revolving speed of motor.
The hydraulic cylinder 2 has the pressure sensor matched with the hydraulic cylinder, and the oil supply loop of the hydraulic cylinder
In be equipped with the pressure reducing valve platform for adjusting the pressure value of the hydraulic cylinder.The calculating of the pressure value of hydraulic cylinder after the adjusting of pressure reducing valve platform is public
Formula are as follows:
P=4F/ π (D2-d2)
F=F1+F2
F2=ρ HSW
In formula, P is the pressure value of hydraulic cylinder, and F is throwing pressure, F1For bulge power, F2For the pressure for overcoming resistance of deformation
Power, W are slab width, and S is roll spacing, δ be shell thickness δ, S be roll spacing,It is steel grade resistance of deformation for roller diameter, σ, h is steel grade
The unit length drafts of permission, wherein D is the internal diameter of hydraulic cylinder, and d is the piston rod diameter of hydraulic cylinder, and ρ is molten steel density, and H is
Vertical height of the calculating position away from liquid steel level.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (4)
1. a kind of fan-shaped segmentation of bloom, which is characterized in that including frame, the top two sides of the frame are respectively fixed with liquid
Cylinder pressure, the output end of the hydraulic cylinder is located at the bottom of the hydraulic cylinder, and the output end of the hydraulic cylinder is connected with connection frame,
And the connection frame is arranged in the frame, the bottom end of the connection frame and upper roller assembly connection, and upper roller assembly is set
It sets in the frame, the hydraulic cylinder can drive the upper roller to be assemblied in the frame and move down by the connection frame
It is dynamic；Lower roll assembly is additionally provided in the lower section of upper roller assembly in the frame；
One end of the upper roller assembly and lower roll assembly, which is keyed, speed reducer I；
The frame is externally provided with the transmission system for driving upper roller assembly and lower roll assembly rotation, the transmission system with
The speed reducer I connects.
2. a kind of fan-shaped segmentation of bloom according to claim 1, it is characterised in that: the transmission system includes bottom
Seat, the pedestal are in double-layer structure, be all provided in the upper and lower of the pedestal be fixed with speed reducer II, motor and with the electricity
The encoder that machine matches；
In the upper layer of the pedestal: the encoder is connect with the motor, the output end of the motor by shaft coupling with
The input terminal of the speed reducer II connects, and the output end of the speed reducer II and one end of universal-joint spindle connect, the Universal connector
The other end of axis and the speed reducer I being keyed with upper roller assembly are connect；
In the lower layer of the pedestal: the encoder is connect with the motor, the output end of the motor by shaft coupling with
One end of coupling spindle connects, and the other end of the coupling spindle is connect by shaft coupling with the input terminal of the speed reducer II, institute
The universal-joint spindle stating the output end of speed reducer II and connecting with the input terminal of lower roll assembly connects.
3. a kind of fan-shaped segmentation of bloom according to claim 1, it is characterised in that: the hydraulic cylinder have with it is described
The pressure sensor that hydraulic cylinder matches, and the pressure value for adjusting the hydraulic cylinder is equipped in the oil supply loop of the hydraulic cylinder
Pressure reducing valve platform.
4. a kind of fan-shaped segmentation of bloom according to claim 3, it is characterised in that: after pressure reducing valve platform adjusting
The hydraulic cylinder pressure value calculation formula are as follows:
P=3F/T (D2-d2)
F=F1+F2
F2=pHSW
In formula, P is the pressure value of hydraulic cylinder, and F is throwing pressure, F1For bulge power, F2For the depressing force for overcoming resistance of deformation, W is
Slab width, S are roll spacing, δ be shell thickness δ, S be roll spacing,It is steel grade resistance of deformation for roller diameter, σ, h is what steel grade allowed
Unit length drafts, wherein D is the internal diameter of hydraulic cylinder, and d is the piston rod diameter of hydraulic cylinder, and ρ is molten steel density, and H is to calculate position
Set the vertical height away from liquid steel level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367205.8A CN109226707A (en) | 2018-11-16 | 2018-11-16 | A kind of fan-shaped segmentation of bloom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367205.8A CN109226707A (en) | 2018-11-16 | 2018-11-16 | A kind of fan-shaped segmentation of bloom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109226707A true CN109226707A (en) | 2019-01-18 |
Family
ID=65075653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811367205.8A Pending CN109226707A (en) | 2018-11-16 | 2018-11-16 | A kind of fan-shaped segmentation of bloom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109226707A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024837A (en) * | 2019-06-04 | 2020-12-04 | 上海梅山钢铁股份有限公司 | Real-time diagnosis method for continuous casting slab nozzle blockage |
| CN112756574A (en) * | 2020-11-27 | 2021-05-07 | 邯郸钢铁集团有限责任公司 | Slab continuous casting soft reduction control method under fault condition of displacement sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024837A (en) * | 2019-06-04 | 2020-12-04 | 上海梅山钢铁股份有限公司 | Real-time diagnosis method for continuous casting slab nozzle blockage |
| CN112756574A (en) * | 2020-11-27 | 2021-05-07 | 邯郸钢铁集团有限责任公司 | Slab continuous casting soft reduction control method under fault condition of displacement sensor |
| CN112756574B (en) * | 2020-11-27 | 2022-06-14 | 邯郸钢铁集团有限责任公司 | Slab continuous casting soft reduction control method under fault condition of displacement sensor |
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