CN108300929B - A kind of processing method of plate and its feeding mechanism of continuous casting installation for casting - Google Patents
A kind of processing method of plate and its feeding mechanism of continuous casting installation for casting Download PDFInfo
- Publication number
- CN108300929B CN108300929B CN201810055688.1A CN201810055688A CN108300929B CN 108300929 B CN108300929 B CN 108300929B CN 201810055688 A CN201810055688 A CN 201810055688A CN 108300929 B CN108300929 B CN 108300929B
- Authority
- CN
- China
- Prior art keywords
- ladle
- lid
- slide gate
- nozzle
- tundish
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- 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
- B22D11/10—Supplying or treating molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/12—Travelling ladles or similar containers; Cars for ladles
- B22D41/13—Ladle turrets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/38—Means for operating the sliding gate
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses a kind of processing method of plate and its feeding mechanisms of continuous casting installation for casting, belong to slab technical field of board processing, it is characterized in that: plate is made after a kind of processing method of plate, including converter, LF refining, VD refining, continuous casting, Q-tempering and packaging and warehousing.The feeding mechanism of its plate continuous casting installation for casting, including rack and rack-mounted revolving platform, several ladles and tundish with lid are installed on revolving platform, the lower end surface of ladle is equipped with slide gate nozzle, the lower section of slide gate nozzle is equipped with long nozzle, the lower end of long nozzle extends down into tundish, the outer wall of ladle is equipped with hand rest, rack is equipped with the slippage slot for placing hand rest, several springs are installed in vertical slippage slot, when cover cap is closed in ladle, the lower end of slide gate nozzle is plugged in long nozzle and is connected with long nozzle.The present invention reduces molten steel to be poured into outside tundish in transfer process from ladle, not only increases the safety of entire continuous casting installation for casting.
Description
Technical field
The invention belongs to slab technical field of board processing, more specifically, it relates to a kind of processing method of plate and
The feeding mechanism of its continuous casting installation for casting.
Background technique
With the continuous development of modern machinery and equipment and manufacturing technology, the performance and quality of wire rod steel part processed are all proposed
Increasingly harsher requirement.Wherein, plate is that molten steel is carried out obtained, the production work of continuous casting after continuous casting via conticaster
Skill specifically includes dummy bar, opens and pour, open vehicle straightening, deingot bar, cutting, ladle replacement, tundish replacement and parking etc.
Step.
Currently, (also known as steel ladle or big packet, are for steel mill, Foundry Works to most ladle in existing production process
Accept molten steel before open hearth, electric furnace or converter, and carry out the refractory material containers of pouring practice) both ends be hinged on by shaft
In rack, by using controller by the molten steel in ladle be poured into tundish (refer to one used in mini-mill steelmaking it is resistance to
Fiery containers) in, it is then assigned in each crystallizer by middle water containing opening again and goes to be poured.
But the molten steel in ladle is easy to splash or be poured into ladle or centre during transport in above process
Packet is outer, while the liquid steel temperature to splash is very high, and the molten steel of splashing can be fallen in rack or other equipment, to influence rack
Normal or equipment service life.Therefore it needs to propose the new technical solution of one kind to solve the above problems.
Summary of the invention
In view of the deficienciess of the prior art, the purpose of the present invention one is to provide a kind of processing method of plate, reduce
Molten steel is splashed or is poured into out of ladle outside ladle or tundish, improves the stability and safety of entire continuous casting installation for casting,
The service life for extending conticaster is also helped simultaneously.
To achieve the above object, the present invention provides the following technical scheme that a kind of processing method of plate, feature exist
In: including following operating procedure,
Step S1, converter: by it is blast-melted and other drying process after raw material ferrosilicon, silicomanganese, high carbon ferro-chrome,
Low nitrogen carbon dust and steel scrap are successively put into converter according to the proportion after melting and reducing and are smelted, heating temperature >=1250
DEG C, tapping temperature is controlled at 1630-1650 DEG C, obtains molten steel；
Step S2, LF refining: the molten steel refined in converter is transferred in ladle, under reducing atmosphere and argon gas stirring,
LF refining processing is carried out in LF furnace using white slag simultaneously；
Step S3, VD is refined: after the ladle of step S2 is entered VD furnace, VD furnace bottom carries out Argon gas disposal, wherein argon
The flow of gas is 100-200 L/min, and pressure is 0.3-0.4 MPa, and Fruit storage is then carried out after closing lid, and vacuum is kept
20 min or more carry out refining treatment in VD furnace after vacuum outgas；
Step S4, continuous casting:
Step a, under the protection of argon gas, starting loop wheel machine closes cover cap in the upper surface of ladle, in lid and molten steel
Under collective effect, slide gate nozzle overcomes spring to move downward, and the lower end of slide gate nozzle is connected on the bottom wall of annular recess at this time；
Step b, disk rotational is then driven, under the drive of disk, the slide gate nozzle of ladle does circle around annular recess
Zhou Yundong, when slide gate nozzle is moved at long nozzle, under gravity, the lower end of slide gate nozzle is plugged on long nozzle, this
When slide gate nozzle be mutually butted with long nozzle；
Step c, then starting supporting cylinder, the piston rod of supporting cylinder extend downwardly and are connected to the upper end of lid
Face further moves down spring, so that the lower end of slide gate nozzle is docked completely with long nozzle, is connected to, the thus molten steel energy in ladle
It is enough stable to flow through long nozzle from slide gate nozzle and be flowed into tundish；
Step d, when the liquid steel level in tundish reach a certain height, the slide gate nozzle of tundish is opened, be located at
Between molten steel in packet by being poured in water mold, when molten steel in mold liquid level reaches preset height, and molten steel four
Week has been frozen into certain thickness steel billet；
Step e, starting withdrawal straightening machine is bitten dummy bar and is moved down, and molten steel is mutually bonded with dummy bar, and can be with dummy ingot
Bar is drawn out crystallizer；
Step f, steel billet enters secondary cooling zone, and cooling water is sprayed at billet surface through cooling nozzles and is cooled down；
Step g, the steel billet completely after solidification sloughs dummy bar after carrying out straightening processing on straightener, then using cutting
Cutting mill obtains slab plate after carrying out cutting process；
Step S5, quenching and tempering, hardening heat are carried out after being screened slab plate obtained in step S4
It is 830-860 DEG C, then obtains plate for use cooling；
Step S6, plate obtained in step S5 is intersected into cleaning 3-4 through washing and pickling and carries out steel ball surface after
It deoils decontamination processing；
Step S7, it is packed in storage after collection, weighing and inspection processing.
By using above-mentioned technical proposal, in step sl, other originals are understood by blast-melted, steel scrap and with ferroalloy etc.
Material is added sequentially to be smelted in converter after melting and reducing, under the basis not by external energy, only leans on iron liquid sheet
Between the physical thermal and iron liquid component of body chemical reaction generate heat and steelmaking process is completed in converter, it is energy saving and reduce at
This.A large amount of sulphur can be effectively sloughed during converter simultaneously, i.e., by increasing calcium and magnesium ion, give birth to it in conjunction with sulphur
Sulfide is produced, so that the absorption of other clinker, removal can reach the effect of desulfurization.
In step s 2, the molten steel after desulfurization is subjected to LF refining, is refined using white slag machine, because white slag is in LF furnace
It is interior that there is very strong reproducibility, oxygen in steel, sulphur and inclusion content can be reduced, the absorption of oxide is made from there through white slag
With to achieve the purpose that deoxidization desulfuration.
In step s3, (vacuum degassing furnace is oxygen blast under vacuum to VD furnace, that is, vacuum degassing furnace, decarburization, vacuum degassing, true
The lower alloying component fine tuning of sky) complete the tasks such as degassing, stirring, molten steel can be carried out Fruit storage and vacuum alloy at
Divide fine tuning.
In step s 4, the molten steel after trimming is carried out being poured obtained slab plate on conticaster, then in step
Plate is subjected to the wear resistance and hardness for quenching with capable of further increasing plate after tempering in rapid S5.
After carrying out plate washing and pickling processes in step s 6, be conducive to the corrosion-resistant intensity for improving slab；Then exist
It can be packed in storage to obtain finished product plate after being collected weighing in step S7.
Thus operation reduces molten steel and splashes or be poured into out of ladle outside ladle or tundish, improves entire continuous casting and sets
Standby stability and safety, while also helping the service life for extending conticaster.
In view of the deficienciess of the prior art, the purpose of the present invention two is to provide a kind of charger of plate continuous casting installation for casting
Structure reduces molten steel and is poured into outside tundish in transfer process from ladle, not only increases the safety of entire continuous casting installation for casting,
And by lid closing lid body, reducing molten steel is splashed to outside ladle out of ladle, also helps the service life for extending conticaster.
To achieve the above object, the present invention provides the following technical scheme that a kind of feeding mechanism of plate continuous casting installation for casting, packet
Including rack and rack-mounted revolving platform are equipped with several ladles and tundish with lid, institute on the revolving platform
The lower end surface for stating ladle is equipped with slide gate nozzle, the lower section of the slide gate nozzle be equipped with long nozzle corresponding above and below slide gate nozzle,
The lower end of the long nozzle extends down into the tundish, and the outer wall of the ladle is equipped with hand rest, sets in the rack
There is the slippage slot for placing hand rest, the slippage slot opens up vertically, is equipped in the slippage slot and several is used to support ladle
Spring, when cover cap is closed in ladle, the lower end of the slide gate nozzle is plugged in long nozzle and is connected with long nozzle.
By using above-mentioned technical proposal, controls manipulator and be placed on ladle in slippage slot straight down, then lid closes
Lid, under the collective effect of lid and molten steel, slide gate nozzle overcomes spring to move down, so that the lower end grafting of slide gate nozzle
In long nozzle, slide gate nozzle is connected with long nozzle at this time, and thus the molten steel in ladle stable can be flowed through from slide gate nozzle
Long nozzle is simultaneously flowed into tundish, is then assigned in each crystallizer by middle water containing opening again and is gone to be poured, is thus
The charging operation of achievable continuous casting installation for casting.
The present invention is further arranged to: the revolving platform from the bottom up successively include chassis and disk, the chassis it is upper
The tundish of square shape is installed, the ladle is mounted on disk, the disk upper end offer downwards one it is cricoid recessed
Slot, the upper end of the long nozzle are fixedly mounted on the lower end surface of groove and are connected with the groove, and lower end extend into described
In tundish.
By using above-mentioned technical proposal, controls manipulator and be placed on ladle in slippage slot straight down, it then will lid
Body lid is closed in the upper surface of ladle；Under the collective effect of lid and molten steel, slide gate nozzle overcomes spring to move downward, and slides at this time
The lower end at the dynamic mouth of a river is connected on the bottom wall of annular recess；Simultaneously drive ladle to rotate, under the drive of ladle, slide gate nozzle around
Annular recess move in a circle, when slide gate nozzle is moved at long nozzle, under gravity, the lower end of slide gate nozzle is inserted
It connects in long nozzle, slide gate nozzle is connected with long nozzle at this time, and thus the molten steel in ladle can be stable from slide gate nozzle stream
It through long nozzle and is flowed into tundish, splashes or be poured into showing outside ladle or tundish it is possible thereby to effectively reduce molten steel
As so that ladle during use more safety and conveniently.
The present invention is further arranged to: each lid is equipped at least two U-shaped handles.
By using above-mentioned technical proposal, operator can open and close ladle by manipulator, easy to operate, while manipulator
It is also relatively stable in folding cover, improve safety and stability when folding cover.
The present invention is further arranged to: lid lifting device is equipped in the rack, under the lid lifting device
End is connected with wirerope, and the other end of the wirerope is fixedly connected on the U-shaped handle on lid.
By using above-mentioned technical proposal, uses lid lifting device to sling lid to open lid or lid closing lid body, grasp
Make simple and convenient, while the safety and stability in folding cover is higher.
The present invention is further arranged to: the lid lifting device includes rack-mounted elevating mechanism, the liter
Descending mechanism includes rotation connection shaft on the rack, is fixed on shaft upper end cursor is rotatably connected on cursor end
Fixed pulley and the lifting hydraulic cylinder of cursor upper surface is installed, the lifting hydraulic cylinder is horizontal vertical, the fixed peace of one end
On the rack, the piston rod of the other end is fixedly connected on U-shaped handle dress by wirerope.
By using above-mentioned technical proposal, when uncapping, start lifting hydraulic cylinder, the telescopic rod of lifting hydraulic cylinder is shunk, band
Dynamic wirerope is mobile towards lifting hydraulic cylinder direction, and lid moves, and lid is separated from each other with ladle, thus
Open ladle；When closing lid, start lifting hydraulic cylinder, the telescopic rod stretching, extension of lifting hydraulic cylinder drives wirerope towards lid
Direction is mobile, and lid moves down and cover cap is closed on ladle, thus can be closed ladle.Operation is very convenient and fast
It is prompt.
The present invention is further arranged to: the end of the cursor is equipped with a safty hoisting seat, the safty hoisting seat
On offer and several chain sling holes and a horizontally disposed movable pulley be installed, be connected with chain sling, chain sling in the chain sling hole
The other end be fixed on the edge of lid；The upper end of the wirerope is around movable pulley and is fixedly connected on lifting hydraulic cylinder
On.
By using above-mentioned technical proposal, one safty hoisting seat is installed in the free end of cursor, can be improved
Stability of the lid in lifting process, facilitates operator's folding cover, improves security performance.
The present invention is further arranged to: the lid lifting device further includes rotating mechanism, and the rotating mechanism includes solid
Surely the rotating wheel being connected in shaft, the circumferential side wall of the rotating wheel are equipped with the friction pulley mutually compressed with rotating wheel, institute
It states friction pulley and passes through motor driven.
By using above-mentioned technical proposal, the rotation of motor driven friction pulley drives rotating wheel rotation, turns shaft therewith
It is dynamic, thus lid can be turned to the side of ladle, facilitate operator at this time and replace ladle, while also improving ladle more
Security performance when changing.
The present invention is further arranged to: vertically-mounted in the rack to have supporting cylinder, the piston of supporting cylinder
When boom end is pressed on the upper surface of lid, the lower end of slide gate nozzle is plugged in long nozzle and is connected with long nozzle.
By using above-mentioned technical proposal, supporting cylinder is installed on the rack, can be improved slide gate nozzle and long nozzle
Between the airtightness that connects and safety, the molten steel in ladle is transferred in tundish via long nozzle completely, by
This improves safety and stability when molten steel transfer.
The present invention is further arranged to: the supporting cylinder is externally provided with high temperature resistant shield.
By using above-mentioned technical proposal, temperature of the part from molten steel is kept out, supporting cylinder has been protected, is conducive to
Extend the service life of supporting cylinder.
In conclusion the invention has the following advantages:
1, The present invention reduces molten steel is poured into outside tundish in transfer process from ladle, not only increases entire continuous casting
The safety of equipment；
2, by lid closing lid body, reduce molten steel and be splashed to outside ladle out of ladle, also help and extend making for conticaster
Use the service life；
3, simple to operate by using loop wheel machine folding cover, while improving safety when lid folding and steady
It is qualitative；
4, by setting supporting cylinder, the stability and safety connecting between slide gate nozzle and long nozzle are improved
Energy.
Detailed description of the invention
Fig. 1 is the process flow chart of the present embodiment；
Fig. 2 is the perspective view of the present embodiment；
Fig. 3 is the enlarged drawing of A in Fig. 2, if for embody relative position between ladle and lid lifting device and
Connection relationship；
Fig. 4 is the partial sectional view of the present embodiment, is mainly used for embodying right side ladle during shifting molten steel, sliding
Relative positional relationship between the mouth of a river and long nozzle；
Fig. 5 is the perspective view of the present embodiment, is mainly used for embodying left side ladle in replacement, lid lifting device and ladle
Between relative positional relationship；
Fig. 6 is the partial sectional view of the present embodiment；
Fig. 7 is the enlarged drawing of B in Fig. 6, is mainly used for embodying the relative position between slippage slot, spring and hand rest and company
Connect relationship.
Detailed description of the invention: 1, rack；2, revolving platform；3, lid；4, ladle；5, tundish；6, slide gate nozzle；7, long nozzle；
8, hand rest；9, slippage slot；10, spring；11, groove；12, lid lifting device；13, wirerope；14, elevating mechanism；15, turn
Axis；16, cursor；17, lifting hydraulic cylinder；18, piston rod；19, rotating mechanism；20, rotating wheel；21, chassis；22, disk；
23, friction pulley；24, motor；25, supporting cylinder；26, high temperature resistant shield；27, fixed pulley；28, safty hoisting seat；29, it hangs
Chain hole；30, movable pulley；31, U-shaped handle；32, chain sling；33, bracket.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Wherein identical components are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
A kind of processing method of plate, as shown in Figure 1, including following operating procedure:
Step S1, converter: by it is blast-melted and other drying process after raw material ferrosilicon, silicomanganese, high carbon ferro-chrome,
Low nitrogen carbon dust and steel scrap are successively put into converter according to the proportion after melting and reducing and are smelted, heating temperature >=1250
DEG C, tapping temperature is controlled at 1630-1650 DEG C, obtains molten steel；
Step S2, LF refining: the molten steel refined in converter is transferred in ladle 4, under reducing atmosphere and argon gas stirring,
LF refining processing is carried out in LF furnace using white slag simultaneously；
Step S3, VD is refined: after the ladle 4 of step S2 is entered VD furnace, VD furnace bottom carries out Argon gas disposal, wherein argon
The flow of gas is 100-200 L/min, and pressure is 0.3-0.4 MPa, and Fruit storage is then carried out after closing lid, and vacuum is kept
20 min or more carry out refining treatment in VD furnace after vacuum outgas；
Step S4, continuous casting:
Step a, under the protection of argon gas, starting loop wheel machine closes the lid of lid 3 in the upper surface of ladle 4, in lid 3 and molten steel
Collective effect under, slide gate nozzle 6 overcomes spring 10 to move downward, and the lower end of slide gate nozzle 6 is connected to annular recess 11 at this time
Bottom wall on；
Step b, then driving disk 22 rotates, and under the drive of disk 22, the slide gate nozzle 6 of ladle 4 is around cyclic annular recessed
Slot 11 moves in a circle, when slide gate nozzle 6 is moved at long nozzle 7, under gravity, the lower end grafting of slide gate nozzle 6
In long nozzle 7, slide gate nozzle 6 is mutually butted with long nozzle 7 at this time；
Step c, then starting supporting cylinder 25, the piston rod of supporting cylinder 25 extend downwardly and are connected to lid 3
Upper surface, further move down spring 10 so that the lower end of slide gate nozzle 6 and long nozzle 7 completely docking, be connected to, thus ladle 4
Interior molten steel stable can flow through long nozzle 7 from slide gate nozzle 6 and be flowed into tundish 5；
Step d, when the liquid steel level in tundish 5 reach a certain height, the slide gate nozzle of tundish 5 is opened, is located at
Molten steel in tundish 5 in water mold by being poured, when molten steel in mold liquid level reaches preset height, and molten steel
Surrounding has been frozen into certain thickness steel billet；
Step e, starting withdrawal straightening machine is bitten dummy bar and is moved down, and molten steel is mutually bonded with dummy bar, and can be with dummy ingot
Bar is drawn out crystallizer；
Step f, steel billet enters secondary cooling zone, and cooling water is sprayed at billet surface through cooling nozzles and is cooled down；
Step g, the steel billet completely after solidification sloughs dummy bar after carrying out straightening processing on straightener, then using cutting
Cutting mill obtains slab plate after carrying out cutting process；
Step S5, quenching and tempering, hardening heat are carried out after being screened slab plate obtained in step S4
It is 830-860 DEG C, then obtains plate for use cooling；
Step S6, plate obtained in step S5 is intersected into cleaning 3-4 through washing and pickling and carries out steel ball surface after
It deoils decontamination processing；
Step S7, it is packed in storage after collection, weighing and inspection processing.
A kind of feeding mechanism of plate continuous casting installation for casting, as shown in Fig. 2, including rack 1 and the revolving platform being mounted in rack 1
2, installation is mounted on lid 3 and a upper end opening on each ladle 4 there are two the ladle 4 of upper end opening on revolving platform 2
Tundish 5.The lower end surface of ladle 4 be equipped with slide gate nozzle 6, the lower section of slide gate nozzle 6 be equipped with on above-mentioned slide gate nozzle 6
Under corresponding long nozzle 7；Wherein the lower end of long nozzle 7 extends down into tundish 5, and thus the molten steel in ladle 4 can be through
Slide gate nozzle 6 is stable to be flowed into long nozzle 7, then is flowed into tundish 5 by long nozzle 7, to realize turning for molten steel
It moves.
As shown in figure 3, replacing ladle 4 in order to facilitate the operation of person, a hand rest 8 is mounted on the two sides of ladle 4, in conjunction with
Shown in Fig. 3 and Fig. 7, the slippage slot 9 for placing hand rest 8 is installed in rack 1, slippage slot 9 opens up vertically, in slippage slot 9
It is vertically-mounted to have several springs 10 for being used to support ladle 4, when thus replacing ladle 4, removed under the auxiliary of special manipulator
After old ladle 4, then the ladle 4 for filling with molten steel moved down along vertical direction, hand rest 8 can be placed at corresponding at this time
In slippage slot 9, when then closing lid 3 in ladle 4 to lower cover, under the gravity of lid 3 and molten steel, ladle 4 can
Overcome the elastic reaction of spring 10 to move down downwards, the lower end of slide gate nozzle 6 is plugged in long nozzle 7 and and long nozzle
7 are connected.Thus molten steel can be smoothly flowed into tundish 5 by slide gate nozzle 6.
As shown in Figures 2 and 3, in order to reduce the molten steel in replacement process of ladle 4 and sputter out of ladle 4, revolving platform 2
It from the bottom up successively include the chassis 21 being fixed in rack 1 and disk 22.Wherein chassis 21 is fixed in rack 1 and on chassis
The tundish 5 of one square shape is installed on 21；And ladle 4 is mounted on the upper surface of disk 22 by bracket 33, furthermore in disk
22 upper ends offer a cricoid groove 11 downwards, and thus when replacing or rotating ladle 4,22 one side of disk being capable of energy
The molten steel for keeping out a part is splashed on pedestal or ground out of ladle 4, and another side further blocks the steel at slide gate nozzle 6
The phenomenon that water seepage flow, improve security performance.
Furthermore the effect of molten steel transfer is improved from docking place outflow in order to reduce molten steel when slide gate nozzle 6 is docked with long nozzle 7
Rate, as shown in Figure 3 and Figure 4, the upper end of long nozzle 7 are fixedly mounted on the lower end surface of groove 11 and are connected with above-mentioned groove 11,
And the lower end of long nozzle 7 then extends down into tundish 5.Thus under gravity, the lower end of slide gate nozzle 6 can be worn
It crosses groove 11 and is plugged into long nozzle 7, slide gate nozzle 6 is connected with long nozzle 7 at this time, and thus the molten steel in ladle 4 can
Stable slave slide gate nozzle 6 flows through long nozzle 7 and is flowed into tundish 5.
As shown in figure 3, be respectively mounted on each lid 3 in order to facilitate the operation of person's folding cover 3 there are four U-shaped handle 31,
Operator can open and close ladle 4 by manipulator, easy to operate, while manipulator is also relatively stable in folding cover 3.
As shown in figure 3, there are two lid lifting dresses for installation in rack 1 in order to further facilitate operator's folding cover 3
Set 12.In conjunction with shown in Fig. 3 and Fig. 4, each lid lifting device 12 includes an elevating mechanism 14 being mounted in rack 1,
Wherein elevating mechanism 14 includes the shaft 15 being rotatably connected in rack 1, the cursor 16 for being fixed on 15 upper end of shaft and peace
Lifting hydraulic cylinder 17 on cursor 16, lifting hydraulic cylinder 17 is horizontal vertical, and one end of lifting hydraulic cylinder 17 is fixedly mounted
In rack 1.
Furthermore as shown in figure 3, being equipped with a safty hoisting seat 28 below the free end of cursor 16, wherein safety jaw
The four chain sling holes 29 opened up on seat 28 are filled, a chain sling 32, the lower end connection of chain sling 32 are respectively connected in each chain sling hole 29
On the U-shaped handle 31 of correspondence of lid 3.In conjunction with shown in Fig. 3 and Fig. 4, safty hoisting seat 28 further includes one horizontally disposed dynamic
Pulley 30 and a fixed pulley 27 being mounted on 16 free end of cursor, pacify on 18 end of piston rod of lifting hydraulic cylinder 17
Equipped with steel cable 13；The lower end of above-mentioned wirerope 13 is fixed in the lower end surface of cursor 16, and the other end successively bypasses dynamic
Pulley 30 and fixed pulley 27 are simultaneously fixedly connected on the piston rod 18 of lifting hydraulic cylinder 17.When thus uncapping, start raise-lower hydraulic
The telescopic rod of cylinder 17, lifting hydraulic cylinder 17 is shunk, and drives wirerope 13 mobile towards 17 direction of lifting hydraulic cylinder, lid 3 is therewith
It is mobile, and lid 3 is separated from each other with ladle 4, i.e., openable ladle 4 is easy to operate.
As shown in Figure 5 and Figure 6, since lid 3 is hung directly from the surface of ladle 4, the placement location meeting of lid 3 at this time
The replacement of ladle 4 is influenced, therefore replacement ladle 4 for convenience, further includes a whirler in each lid lifting device 12
Structure 19.Rotating mechanism 19 includes a rotating wheel 20 being fixedly connected in shaft 15, wherein on the circumferential side wall of rotating wheel 20
Equipped with the friction pulley 23 mutually compressed with rotating wheel 20, and friction pulley 23 is driven by motor 24, thus starts motor 24, motor
24 drive friction pulleys 23 to rotate so that rotating wheel 20 rotates with it, thus can will drive cursor 16 and lid 3 together around
The central axes of rotating wheel 20 rotate, to realize the purpose for removing lid 3 from 4 upper end of ladle, very simply and conveniently.
In order to further increase the leakproofness connected between long nozzle 7 and slide gate nozzle 6, as shown in figure 4, in rack 1
It is vertically-mounted to have supporting cylinder 25, when the piston rod end of supporting cylinder 25 is pressed on downwards the upper surface of lid 3, sliding
The lower end at the mouth of a river 6 can closely be plugged in long nozzle 7 and be connected with long nozzle 7, which thereby enhance slide gate nozzle 6 with
The airtightness connected between long nozzle 7 and safety enable during the molten steel in ladle 4 is transferred to via long nozzle 7 completely
Between packet 5 in, which thereby enhance molten steel transfer when safety and stability.
As shown in fig. 6, in order to improve the service life of supporting cylinder 25, outer in supporting cylinder 25 is arranged with one
High temperature resistant shield 26, the high temperature resistant shield 26 use white asbestos cloth to be made for raw material, can keep out 700-
800 degrees Celsius of high temperature, therefore under the action of above-mentioned high temperature resistant shield 26, heat of the part from molten steel can have been kept out
Degree, protects supporting cylinder 25, is conducive to extend the service life of supporting cylinder 25.
Working principle:
When work, starting lifting hydraulic cylinder 17, the telescopic rod of lifting hydraulic cylinder 17 are shunk first, drive wirerope 13 towards
17 direction of lifting hydraulic cylinder is mobile, and lid 3 moves, and lid 3 is separated from each other with ladle 4, thus i.e. openable steel
Packet 4 then starts motor 24, and motor 24 drives friction pulley 23 to rotate, and rotating wheel 20 rotates with it, so that lid 3 is from ladle 4
It removes upper end；At the same time, ladle 4 is placed in slippage slot 9 by control manipulator straight down, then starts motor 24, electricity
The reversion of machine 24 drives friction pulley 23 to rotate backward, and rotating wheel 20 rotates with it, so that lid 3 turns to the surface position of ladle 4
Set place；Then start lifting hydraulic cylinder 17, the telescopic rod stretching, extension of lifting hydraulic cylinder 17 drives wirerope 13 towards 3 direction of lid
Mobile, lid 3 moves down and the lid of lid 3 is made to close the upper end surface on ladle 4；Then, in the collective effect of lid 3 and molten steel
Under, slide gate nozzle 6 overcomes spring 10 to move downward, and the lower end of slide gate nozzle 6 is connected on the bottom wall of annular recess 11 at this time；Together
When motor 24 driving ladle 4 rotate, under the drive of ladle 4, slide gate nozzle 6 moves in a circle around annular recess 11,
When slide gate nozzle 6 is moved at long nozzle 7, under gravity, the lower end of slide gate nozzle 6 is plugged on long nozzle 7；Then again
Start supporting cylinder 25, so that the end of supporting cylinder 25 is connected to downwards the upper surface of lid 3, slide gate nozzle 6 at this time
It docks and is connected to completely with long nozzle 7, thus the molten steel in ladle 4 stable can flow through 7 cocurrent of long nozzle from slide gate nozzle 6
Enter into tundish 5.
Specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in this hair
All by the protection of Patent Law in bright scope of the claims.
Claims (10)
1. a kind of processing method of plate, it is characterised in that: including following operating procedure,
Step S1, converter: by raw material ferrosilicon, the silicomanganese, high carbon ferro-chrome, low nitrogen after blast-melted and other drying process
Carbon dust and steel scrap are successively put into converter according to the proportion after melting and reducing to be smelted, heating temperature >=1250 DEG C, out
Steel temperature is controlled at 1630-1650 DEG C, obtains molten steel；
Step S2, LF refining: the molten steel refined in converter is transferred in ladle (4), under reducing atmosphere and argon gas stirring, together
Shi Liyong white slag carries out LF refining processing in LF furnace；
Step S3, VD is refined: after the ladle (4) of step S2 is entered VD furnace, VD furnace bottom carries out Argon gas disposal, wherein argon gas
Flow be 100-200 L/min, pressure is 0.3-0.4 MPa, then carries out Fruit storage after closing lid, and vacuum keeps 20
Min or more carries out refining treatment in VD furnace after vacuum outgas；
Step S4, continuous casting:
Step a, under the protection of argon gas, starting loop wheel machine closes lid (3) lid in the upper surface of ladle (4), in lid (3) and steel
Under the collective effect of water, slide gate nozzle (6) overcomes spring (10) to move downward, and the lower end of slide gate nozzle (6) is connected to ring at this time
On the bottom wall of shape groove (11)；
Step b, then driving disk (22) rotation, under the drive of disk (22), the slide gate nozzle (6) of ladle (4) is around ring
Shape groove (11) moves in a circle, when slide gate nozzle (6) is moved at long nozzle (7), under gravity, slide gate nozzle
(6) lower end is plugged on long nozzle (7), and slide gate nozzle (6) is mutually butted with long nozzle (7) at this time；
Step c, then starting supporting cylinder (25), the piston rod of supporting cylinder (25) extend downwardly and are connected to lid
(3) upper surface further moves down spring (10), so that the lower end of slide gate nozzle (6) is docked completely with long nozzle (7), is connected to,
Thus the molten steel in ladle (4) stable can flow through long nozzle (7) from slide gate nozzle (6) and be flowed into tundish (5)；
Step d, when the inner liquid steel level of tundish (5) reach a certain height, the slide gate nozzle of tundish (5) is opened, is located at
Molten steel in tundish (5) in water mold by being poured, when molten steel in mold liquid level reaches preset height, and steel
Water surrounding has been frozen into certain thickness steel billet；
Step e, starting withdrawal straightening machine is bitten dummy bar and is moved down, and molten steel is mutually bonded with dummy bar, and can be with dummy bar quilt
Pull out crystallizer；
Step f, steel billet enters secondary cooling zone, and cooling water is sprayed at billet surface through cooling nozzles and is cooled down；
Step g, the steel billet completely after solidification sloughs dummy bar after carrying out straightening processing on straightener, then using cutting machine
Slab plate is obtained after carrying out cutting process；
Step S5, quenching is carried out after being screened slab plate obtained in step S4 and tempering, hardening heat are
830-860 DEG C, plate is then obtained for use cooling；
Step S6, plate obtained in step S5 is intersected into cleaning 3-4 through washing and pickling and carries out deoiling for steel ball surface after
Decontamination processing；
Step S7, it is packed in storage after collection, weighing and inspection processing.
2. the feeding mechanism of plate continuous casting installation for casting in a kind of a kind of method for processing sheet material according to claim 1, including machine
Frame (1) and the revolving platform (2) being mounted on rack (1) are equipped with several ladles with lid (3) on the revolving platform (2)
(4) and tundish (5), the lower end surface of the ladle (4) is equipped with slide gate nozzle (6), the lower section of the slide gate nozzle (6) be equipped with
Corresponding long nozzle (7), the lower end of the long nozzle (7) extend down into the tundish (5) slide gate nozzle (6) up and down,
It is characterized by: the outer wall of the ladle (4) is equipped with hand rest (8), the rack (1) is equipped with for placing hand rest (8)
Slippage slot (9), the slippage slot (9) open up vertically, are equipped with several bullets for being used to support ladle (4) in the slippage slot (9)
Spring (10), lid (3) lid are closed when ladle (4) is interior, the lower end of the slide gate nozzle (6) be plugged in long nozzle (7) and with length
The mouth of a river (7) is connected.
3. a kind of feeding mechanism of plate continuous casting installation for casting according to claim 2, it is characterised in that: the revolving platform (2)
From the bottom up successively include chassis (21) and disk (22), the tundish (5) of square shape is installed on the chassis (21), it is described
Ladle (4) is mounted on disk (22), and disk (22) upper end offers a cricoid groove (11), the length downwards
The upper end at the mouth of a river (7) is fixedly mounted on the lower end surface of groove (11) and is connected with the groove (11), and lower end extend into institute
It states in tundish (5).
4. a kind of feeding mechanism of plate continuous casting installation for casting according to claim 3, it is characterised in that: each lid
(3) at least two U-shaped handles (31) are equipped with.
5. a kind of feeding mechanism of plate continuous casting installation for casting according to any one of claim 2-4, it is characterised in that: institute
It states and is equipped on rack (1) lid lifting device (12), the lower end of the lid lifting device (12) is connected with wirerope (13),
The other end of the wirerope (13) is fixedly connected on the U-shaped handle (31) on lid (3).
6. a kind of feeding mechanism of plate continuous casting installation for casting according to claim 5, it is characterised in that: the lid lifting dress
Setting (12) includes the elevating mechanism (14) being mounted on rack (1), and the elevating mechanism (14) includes being rotatably connected on rack (1)
On shaft (15), the cursor (16) for being fixed on shaft (15) upper end, the fixed pulley that is rotatably connected on cursor (16) end
(27) and it being mounted on the lifting hydraulic cylinder (17) of cursor (16) upper surface, the lifting hydraulic cylinder (17) is horizontal vertical,
One end is fixedly mounted on rack (1), and the piston rod (18) of the other end is fixedly connected on U-shaped handle by wirerope (13)
(31) on.
7. a kind of feeding mechanism of plate continuous casting installation for casting according to claim 6, it is characterised in that: the cursor (16)
End one safty hoisting seat (28) is installed, offered on the safty hoisting seat (28) several chain sling holes (29) and installation
There is a horizontally disposed movable pulley (30), be connected with chain sling (32) in the chain sling hole (29), the other end of chain sling (32) is solid
It is scheduled on the edge of lid (3)；The upper end of the wirerope (13) is around movable pulley (30) and is fixedly connected on lifting hydraulic cylinder
(17) on.
8. a kind of feeding mechanism of plate continuous casting installation for casting according to claim 7, it is characterised in that: the lid lifting dress
Setting (12) further includes rotating mechanism (19), and the rotating mechanism (19) includes the rotating wheel being fixedly connected on shaft (15)
(20), the circumferential side wall of the rotating wheel (20) is equipped with the friction pulley (23) mutually compressed with rotating wheel (20), the friction
(23) are taken turns to drive by motor (24).
9. a kind of feeding mechanism of plate continuous casting installation for casting according to claim 8, it is characterised in that: in the rack (1)
It is above vertically-mounted to have supporting cylinder (25), when the piston rod end of supporting cylinder (25) is pressed on the upper surface of lid (3),
The lower end of slide gate nozzle (6) is plugged in long nozzle (7) and is connected with long nozzle (7).
10. a kind of feeding mechanism of plate continuous casting installation for casting according to claim 9, it is characterised in that: the support hydraulic pressure
Cylinder (25) is externally provided with high temperature resistant shield (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810055688.1A CN108300929B (en) | 2018-01-19 | 2018-01-19 | A kind of processing method of plate and its feeding mechanism of continuous casting installation for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810055688.1A CN108300929B (en) | 2018-01-19 | 2018-01-19 | A kind of processing method of plate and its feeding mechanism of continuous casting installation for casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108300929A CN108300929A (en) | 2018-07-20 |
| CN108300929B true CN108300929B (en) | 2019-06-18 |
Family
ID=62865979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810055688.1A Active CN108300929B (en) | 2018-01-19 | 2018-01-19 | A kind of processing method of plate and its feeding mechanism of continuous casting installation for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108300929B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332621B (en) * | 2018-10-15 | 2023-08-04 | 哈尔滨博实自动化股份有限公司 | Device suitable for intelligent automatic operation on continuous casting table |
| CN110172642A (en) * | 2019-06-03 | 2019-08-27 | 江苏创斯达科技有限公司 | A kind of stepless transmission high carbon chromium steel ball and preparation method thereof |
| CN110216260A (en) * | 2019-06-19 | 2019-09-10 | 武汉钢铁有限公司 | The method of Cleanliness of Molten Steel is improved in continuous casting process |
| CN110576163B (en) * | 2019-09-28 | 2021-07-20 | 江苏联峰能源装备有限公司 | Method for producing high-carbon manganese-chromium steel by large-section continuous casting round billet |
| CN112091204B (en) * | 2020-09-23 | 2021-09-17 | 东营嘉扬精密金属有限公司 | Pouring device is used in casting of convenient operation |
| CN113814381B (en) * | 2021-09-13 | 2024-01-23 | 山东莱钢永锋钢铁有限公司 | Full-automatic control device and control method for molten steel casting |
| CN114905012B (en) * | 2022-06-01 | 2024-01-26 | 杭州红山磁性材料有限公司 | Horizontal continuous casting method and device for aluminum nickel cobalt magnetic material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164531A (en) * | 2013-09-11 | 2014-11-26 | 襄阳康捷飞龙电气有限公司 | Method for producing cast iron by adopting converter blowing smelting and purification |
-
2018
- 2018-01-19 CN CN201810055688.1A patent/CN108300929B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104164531A (en) * | 2013-09-11 | 2014-11-26 | 襄阳康捷飞龙电气有限公司 | Method for producing cast iron by adopting converter blowing smelting and purification |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108300929A (en) | 2018-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108300929B (en) | A kind of processing method of plate and its feeding mechanism of continuous casting installation for casting | |
| JP5793112B2 (en) | Flexible minimum energy-utilizing arc furnace system and method for manufacturing steel products | |
| KR20160105428A (en) | Method and plant for the production of long ingots having a large cross-section | |
| CN107350445B (en) | The production method of carburizing bearing steel G20Cr2Ni4 continuous cast round billets | |
| WO2007074993A1 (en) | Degassing apparatus having duplex vacuum vessel | |
| CN208883958U (en) | A kind of novel degassing machine | |
| CN210856202U (en) | Liquid metal smelting system | |
| US5715272A (en) | Device for charging an electric furnace | |
| KR20120061270A (en) | Pig casting machine and method for manufacturing cold pig iron using the same | |
| CN101513668B (en) | High-speed negative pressure casting furnace | |
| CN2287064Y (en) | Moveable centrifugal electroslag casting apparatus | |
| KR100694314B1 (en) | An Apparatus For Moving The Snorkel in Chemical Heating In Snorkel of Refining Utility | |
| CN211734447U (en) | Production device for vacuum degassing rare earth steel | |
| CN210856207U (en) | Liquid metal refining device and liquid metal smelting system | |
| KR100544422B1 (en) | Method for Manufacturing Molten Steel | |
| CN113430449A (en) | Smelting and continuous casting production process of sulfur-containing free-cutting steel ASTM1141 | |
| CN112176149B (en) | Liquid metal refining device, liquid metal smelting system and refining method | |
| CN110257588B (en) | Liquid metal smelting system and smelting method | |
| CN210711611U (en) | Preparation device of vermicular cast iron with high pearlite and high vermicular rate | |
| CN205309288U (en) | Tilting type hot metal charging transport vehicle | |
| KR101164919B1 (en) | Charging ladle ascent and descent apparatus | |
| CN215713118U (en) | Device for quickly adjusting molten steel components in converter direct-mounted process argon station | |
| CN216011717U (en) | Transition launder device of vacuum induction furnace | |
| CN220216700U (en) | System for adding aluminum alloy solution for casting machine | |
| CN113549728B (en) | Device for preventing converter from deslagging and shortening tapping time and using method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |