CN202709721U - LF (ladle furnace) device - Google Patents
LF (ladle furnace) device Download PDFInfo
- Publication number
- CN202709721U CN202709721U CN 201220343599 CN201220343599U CN202709721U CN 202709721 U CN202709721 U CN 202709721U CN 201220343599 CN201220343599 CN 201220343599 CN 201220343599 U CN201220343599 U CN 201220343599U CN 202709721 U CN202709721 U CN 202709721U
- Authority
- CN
- China
- Prior art keywords
- stove
- links
- nozzle
- frame
- heater
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Furnace Charging Or Discharging (AREA)
Abstract
The utility model discloses an LF(ladle furnace) device which is convenient for deslagging and tapping, convenient to regulate components of blast furnace molten iron, and capable of guaranteeing stability of components of the molten iron. A tipping device used for turning a discharge outlet of an LF downwards is arranged on the basis of the LF, and different powder materials can be added quickly by nozzles and a powder sprayer which are also arranged on the basis of the LF. Besides, the LF device is provided with a nozzle control device for controlling lift of the nozzles, and an air jet device convenient to jet air into the molten iron is arranged on the outer side of the LF.
Description
Technical field
The utility model relates to the LF furnace apparatus that a kind of field of metallurgy is used.
Background technology
Traditional Foundry Production molten iron generally is to adopt furnace cupola or induction furnace (also can use electric arc furnaces, lack with the blase furnace cast iron piece.) carry out remelting, and add part steel scrap and suitable alloy and solvent again smelting process produce.This process need to heat remelting again to metal charge, thereby needs a large amount of heat energy.These two kinds of smelting furnaces are because of the melting purification poor performance to the iron-carbon alloy material, so the quality of molten casting iron all guarantees in raw-material quality according to anti-.(1) furnace cupola: the fusion process of furnace cupola is that combustion of coke obtains heat metal charge is melted.Because the burning of coke can produce a large amount of carbon monoxide and carbon dioxide, what this gas formed molten iron in furnace cupola is reducing atmosphere.We know the smelt iron carbon alloy, are that reducing atmosphere can only desulfurization in the stove, and can not dephosphorization.Therefore furnace cupola is to the melting purification poor performance of iron-carbon alloy material.(2) induction furnace: the fusion process of induction furnace is to produce induced potential formation induced-current (eddy current) acquisition heat by induced electricity in metal charge it is melted.We know, the smelting iron carbon alloy need add calcium oxide (lime), calcirm-fluoride (fluorite) equal solvent just can be smelted purification.And these materials are non-conducting materials, can not produce induced potential and form induced-current, also just can not initiatively obtain heat, can only rely on the radiation of molten iron and heat conduction to obtain.Therefore its temperature is lower, does not reach iron-carbon alloy and smelts the basic demand of purifying.So induction furnace is to the melting purification poor performance of iron-carbon alloy material.(3) electric arc furnaces: the fusion process of electric arc furnaces is to produce high-temperature electric arc light (＞3000 ℃) heating furnace charge by arc discharge it is melted.Because the temperature of arclight is very high, and is large to the scaling loss of carbon in the pig, therefore generally do not adopt electric arc furnaces to come melting cast iron.
The Foundry Production of machinery industry, the melting master operation that is absolutely necessary is the key procedure of material property control and energy consumption.Casting industry is in order to reduce cost, energy savings, and the thinking that short flow process is produced cast product is smelted in current proposition utilization, has obtained the response of social most enterprises.Yet in implementation process, the winner has it, and is problematic quite a few.Analyze its reason, two aspects are arranged.The one, all be with out blast-melted at present, adjust composition with induction furnace again, directly carry out pouring cast part.So really, can reduce a large amount of energy consumptions.But the molten iron composition is unsettled.The 2nd, stable molten iron composition must depend on stable raw material supply.Yet raw-material quality has the region difference.Therefore provide a kind of method of stablizing the molten iron composition aobvious particularly important.
And LF stove of the prior art generally comprises lid, cylindrical shell and discharging opening.The LF stove is positioned on the pedestal.When needs are slagged tap or tap a blast furnace, need to use large-scale auxiliary equipment just can finish, very inconvenience.
The utility model content
The technical problem that the utility model solves provides a kind of LF furnace apparatus of conveniently slagging tap and tapping a blast furnace.
The technical scheme that its technical problem that solves the utility model adopts is: the LF furnace apparatus, comprise the LF stove, and described LF stove comprises lid, cylindrical shell and discharging opening, described LF stove links to each other with the tipple that overturns downwards for the discharging opening with the LF stove.
Further be: described tipple comprises the body of heater frame that fascinates, described LF stove and the body of heater frame that fascinates links to each other, the described body of heater frame that fascinates is installed on the converter body support seat, and fascinate two opposite sides of frame of body of heater are hinged with the converter body support seat respectively, and the discharging opening of described LF stove is positioned at the centre of described two opposite sides; Described body of heater fascinates and also is equipped with between frame and the converter body support seat for driving the fascinate hydraulic cylinder that fascinates of the relative converter body support seat upset of frame of body of heater.
Further be: described LF stove and body of heater fascinate and are provided with connecting through hole between the frame, are provided with locked hydraulic cylinder at the body of heater frame that fascinates, and the hydraulic stem of described locked hydraulic cylinder links to each other LF stove and the body of heater frame that fascinates by stretching into connecting through hole.
Further be: be provided with nozzle on the lid of described LF stove, an end of described nozzle stretches into inner barrel, and the other end of described nozzle forms link, and described link links to each other with dusting device.
Further be: described dusting device comprises conveying pot and the carrier pipe that links to each other with the link of nozzle, described carrier pipe links to each other with the outlet of conveying pot, be provided with powder on the described conveying pot and supply with control valve and Compressed Gas control valve, described powder is supplied with control valve and is linked to each other with the powder supply bucket that is arranged on the conveying pot top, and described Compressed Gas control valve links to each other with compressed gas source.
Further be: also comprise be used to the Jet control device of controlling described nozzle lifting.
Further be: described Jet control device comprises support, is provided with motor and leading screw on the described support, and described motor links to each other with leading screw, the nut that has been threaded on the described leading screw, and described nut links to each other with the nozzle hoisting frame, and described nozzle hoisting frame links to each other with nozzle.
Further be: also comprise the air jet system that is arranged on the LF stove outside, described air jet system comprises at least 3 air supply pipes, and each air supply pipe is connected with respectively corresponding feeder.
The beneficial effects of the utility model are:
1, by tipple is set, can conveniently slag tap and tap a blast furnace.
2, by nozzle can be very easily to the various powders of winding-up in the LF stove, desulfurizing agent for example, Dephosphorising agent or other alloy, thereby can realize blast-melted composition is carried out the purpose of convenient and swift adjustment.
3, can realize the lifting of nozzle by the Jet control device, but the degree of depth of namely Control Nozzle insertion molten iron.Can make like this powder directly send into molten iron inside, can take full advantage of powder, the scaling loss of less powder.
4, the requirement that technique change was adjusted during air jet system can be convenient to adapt to fast and smelt.
Description of drawings
Fig. 1 is the schematic diagram of LF furnace apparatus;
Fig. 2 is the schematic diagram of Jet control device;
Fig. 3 is the schematic diagram of dusting device;
Fig. 4 is the side view of tipple;
Fig. 5 is the top view of tipple;
Fig. 6 is the use state diagram of tipple.
Be labeled as among the figure: the body of heater frame 1 that fascinates, LF stove 2, discharging opening 3, converter body support seat 4, hydraulic cylinder 5 fascinates, locked hydraulic cylinder 6, locked hydraulic cylinder 7, powder is supplied with bucket 11, and powder is supplied with bucket 12, powder is supplied with bucket 13, conveying pot 14, and conveying pot 15, powder is supplied with control valve 16, powder is supplied with control valve 17, and powder is supplied with control valve 18, and powder is supplied with bucket elevator 19, outlet 151, support 21, nozzle hoisting frame 22, motor 23, lid 24, nozzle 25, cylindrical shell 26, leading screw 27, nut 28.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
As shown in Figure 1, LF furnace apparatus of the present utility model comprises LF stove 2, and described LF stove 2 comprises lid 24, cylindrical shell 26 and discharging opening 3, and described LF stove 2 links to each other with the discharging opening 3 downward tipples that overturn that are used for LF stove 2.LF stove of the prior art generally all comprises lid 24, cylindrical shell 26 and discharging opening 3, and distinctive points of the present utility model is to have increased tipple.During use, can realize LF stove 2 is verted by tipple, make its discharging opening 3 down, thereby conveniently slag tap and tap a blast furnace.The embodiment of above-mentioned this tipple has multiple, and for example LF stove 2 can be installed on the pedestal, and base bottom one end arranges hydraulic cylinder, can realize tumbling of LF stove 2 by hydraulic cylinder jacking pedestal, namely makes its discharging opening 3 down.Preferred embodiment is: extremely shown in Figure 6 such as Fig. 4, described tipple comprises the body of heater frame 1 that fascinates, described LF stove 2 and the body of heater frame 1 that fascinates links to each other, the described body of heater frame 1 that fascinates is installed on the converter body support seat 4, and fascinate two opposite sides of frame 1 of body of heater are hinged with converter body support seat 4 respectively, and the discharging opening 3 of described LF stove 2 is positioned at the centre of described two opposite sides; Described body of heater fascinates and also is equipped with between frame 1 and the converter body support seat 4 for driving the body of heater hydraulic cylinder 5 that fascinates that frame 1 relative converter body support seat 4 overturns that fascinates.The tipple compact conformation of said structure, floor space is little, and is convenient to use.And its stability is higher, can realize that LF stove 2 steadily overturns, and security is higher.In addition, in order to make things convenient for the fascinate dismounting of frame 1 of LF stove 2 and body of heater, and make LF stove 2 and body of heater fascinate frame 1 be connected firm, can realize by locked hydraulic cylinder, for example among Fig. 4, on two opposite sides of LF stove 2, every side arranges two locked hydraulic cylinders 6 and 7, LF stove 2 and body of heater fascinate and are provided with connecting through hole between the frame 1, and the hydraulic stem of locked hydraulic cylinder stretches into the locking that can realize behind the through hole LF stove 2.Like this, as shown in Figure 6, in LF stove 2 was tumbled process, LF stove 2 and the body of heater frame 1 that fascinates was connected firmly, and steadily the carrying out of safety guarantees to slag tap and tap a blast furnace smoothly.When needs fascinate frame 1 when separating with LF stove 2 and body of heater, the hydraulic stem of locked hydraulic cylinder can be regained, can realize that like this LF stove 2 and body of heater fascinate separating of frame 1.
On the basis of the above, for the ease of the molten iron composition is adjusted, as shown in Figure 1, be provided with nozzle 25 on the lid 24 of described LF stove 2, one end of described nozzle 25 stretches into cylindrical shell 26 inside, and the other end of described nozzle 25 forms link, and described link links to each other with dusting device.During use, open dusting device, various powders can be inner by the molten iron that nozzle 25 directly sprays in the LF stove with gas medium.Owing to being to spray from top to bottom, the suffered resistance of powder is less, can realize dusting fast.Powder is subjected to airflow influence after entering molten iron inside with gas medium, and molten iron can roll, and powder can spread by nature towards periphery, fully mixes with molten iron.
The embodiment of above-mentioned dusting device has multiple, for example can be first with powder be stored in the container after gases at high pressure mix.By tube connector container is linked to each other with nozzle when needing and get final product.Preferred embodiment is: as shown in Figure 3, described dusting device comprises conveying pot 15 and the carrier pipe that links to each other with the link of nozzle 25, described carrier pipe links to each other with the outlet 151 of conveying pot 15, be provided with powder on the described conveying pot 15 and supply with control valve 17 and Compressed Gas control valve, described powder is supplied with control valve 17 and is linked to each other with the powder supply bucket 12 that is arranged on conveying pot 15 tops, and described Compressed Gas control valve links to each other with compressed gas source.Powder is supplied with in the bucket 12 and has been taken up powder, opens powder and supplies with control valve 17, and powder can enter conveying pot 15, then powder can be sprayed in the molten iron in the LF stove 2 by Compressed Gas by conveying pot 15.The dusting device of said structure is convenient to control the straying quatity of powder.When arranging, can be at a plurality of dusting devices of LF stove 2 arranged outside, as shown in Figure 3, be provided with powder and supply with bucket 11, powder supply bucket 12 and powder supply bucket 13, powder is supplied with bucket 11 and is linked to each other with the conveying pot 14 of below by powder supply control valve 16, and powder supply bucket 13 is supplied with control valve 18 by powder and linked to each other with the conveying pot 15 of below.Powder is supplied with bucket 11, powder is supplied with in bucket 12 and the powder supply bucket 13 and can be taken up respectively desulfurizing agent, Dephosphorising agent and deoxidier etc.So only need by carrier pipe nozzle 25 and different conveying pot to be linked to each other and can realize adjustment to each composition of molten iron, efficient and convenient.In addition, also can supply with bucket arranged outside powder at powder and supply with bucket elevator 19, be used in powder supply bucket, carrying powder.
In order to make things convenient for the descending operation of nozzle 25, make nozzle 25 can stretch into quickly and accurately the interior assigned address of LF stove, on the basis of the above, also comprise be used to the Jet control device of controlling described nozzle 25 liftings.As depicted in figs. 1 and 2, during use, can realize by the said nozzle control device rising or the decline of nozzle 25.The embodiment of said nozzle control device has multiple, for example can realize by cylinder.Preferred embodiment is: as depicted in figs. 1 and 2, described Jet control device comprises support 21, be provided with motor 23 and leading screw 27 on the described support 21, described motor 23 links to each other with leading screw 27, nut 28 has been threaded on the described leading screw 27, described nut 28 links to each other with nozzle hoisting frame 22, and described nozzle hoisting frame 22 links to each other with nozzle 25.When said structure uses, can drive leading screw 27 rotations by motor, the rotation of leading screw 27 can impel nut 28 along axial rising or the decline of leading screw 27, and nut 28 can drive nozzle 25 by nozzle hoisting frame 22 and rise or descend.Whole use is efficient and convenient, can realize that automation precisely operates.In addition, as shown in Figure 2, above-mentioned support 21 also can be made movable, namely comprises column and the framework hinged with column, and framework can column axially for rotating shaft rotates, and can conveniently adjust the horizontal level of nozzle like this.For example, after molten iron is disposed, nozzle can be risen and separate with the LF stove, then nozzle is moved to position away from the LF stove by framework, thereby be convenient to the LF stove is carried out next step operation, such as slagging tap and tap a blast furnace operation.
In order to adapt to the requirement that technique change is adjusted in the smelting, as shown in Figure 1, also comprise the air jet system that is arranged on the LF stove outside, described air jet system comprises at least 3 air supply pipes, each air supply pipe is connected with respectively corresponding feeder.For example 3 air supply pipes can be connected with respectively the feeders such as oxygen, argon gas, nitrogen.During use, if with the link of nozzle with after dusting device separates, link to each other with air jet system again, can realize molten iron jet.Efficient and convenient, can improve the molten iron treatment effeciency.
Claims (8)
1.LF furnace apparatus comprises LF stove (2), described LF stove (2) comprises lid (24), cylindrical shell (26) and discharging opening (3), it is characterized in that: described LF stove (2) links to each other with the tipple that overturns downwards for the discharging opening (3) with LF stove (2).
2. LF furnace apparatus as claimed in claim 1, it is characterized in that: described tipple comprises the body of heater frame (1) that fascinates, described LF stove (2) and the body of heater frame (1) that fascinates links to each other, the described body of heater frame (1) that fascinates is installed on the converter body support seat (4), and fascinate two opposite sides of frame (1) of body of heater are hinged with converter body support seat (4) respectively, and the discharging opening (3) of described LF stove (2) is positioned at the centre of described two opposite sides; Described body of heater fascinates and also is equipped with between frame (1) and the converter body support seat (4) for driving the body of heater hydraulic cylinder that fascinates (5) that the relative converter body support seat of frame (1) (4) overturns that fascinates.
3. LF furnace apparatus as claimed in claim 2, it is characterized in that: described LF stove (2) and body of heater fascinate and are provided with connecting through hole between the frame (1), be provided with locked hydraulic cylinder (6 at the body of heater frame (1) that fascinates, 7), the hydraulic stem of described locked hydraulic cylinder (6,7) links to each other LF stove (2) and the body of heater frame (1) that fascinates by stretching into connecting through hole.
4. LF furnace apparatus as claimed in claim 1, it is characterized in that: be provided with nozzle (25) on the lid (24) of described LF stove (2), one end of described nozzle (25) stretches into cylindrical shell (26) inside, the other end of described nozzle (25) forms link, and described link links to each other with dusting device.
5. LF furnace apparatus as claimed in claim 4, it is characterized in that: described dusting device comprises conveying pot (15) and the carrier pipe that links to each other with the link of nozzle (25), described carrier pipe links to each other with the outlet (151) of conveying pot (15), be provided with powder on the described conveying pot (15) and supply with control valve (17) and Compressed Gas control valve, described powder is supplied with control valve (17) and is linked to each other with the powder supply bucket (12) that is arranged on conveying pot (15) top, and described Compressed Gas control valve links to each other with compressed gas source.
6. LF furnace apparatus as claimed in claim 4 is characterized in that: also comprise be used to the Jet control device of controlling described nozzle (25) lifting.
7. LF furnace apparatus as claimed in claim 6, it is characterized in that: described Jet control device comprises support (21), be provided with motor (23) and leading screw (27) on the described support (21), described motor (23) links to each other with leading screw (27), nut (28) has been threaded on the described leading screw (27), described nut (28) links to each other with nozzle hoisting frame (22), and described nozzle hoisting frame (22) links to each other with nozzle (25).
8. LF furnace apparatus as claimed in claim 4 is characterized in that: also comprise the air jet system that is arranged on the LF stove outside, described air jet system comprises at least 3 air supply pipes, and each air supply pipe is connected with respectively corresponding feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220343599 CN202709721U (en) | 2012-07-16 | 2012-07-16 | LF (ladle furnace) device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220343599 CN202709721U (en) | 2012-07-16 | 2012-07-16 | LF (ladle furnace) device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709721U true CN202709721U (en) | 2013-01-30 |
Family
ID=47590014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220343599 Withdrawn - After Issue CN202709721U (en) | 2012-07-16 | 2012-07-16 | LF (ladle furnace) device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202709721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735053A (en) * | 2012-07-16 | 2012-10-17 | 盐边县福川机械制造有限公司 | LF (low frequency) furnace device, and method for processing molten iron of blast furnace |
-
2012
- 2012-07-16 CN CN 201220343599 patent/CN202709721U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735053A (en) * | 2012-07-16 | 2012-10-17 | 盐边县福川机械制造有限公司 | LF (low frequency) furnace device, and method for processing molten iron of blast furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104870662A (en) | Fixed-type electric furnace and molten steel production method | |
| JPS63125611A (en) | Method for increasing supply of energy to arc furnace | |
| JP5552754B2 (en) | Arc furnace operation method | |
| CN102719596B (en) | Method for melting converter bottom by remaining converter slags | |
| CN101967532A (en) | Powder spraying device and method for efficient vanadium extracting process of converter | |
| CN105543633A (en) | Method for smelting ferrosilicon by utilizing crystalline silicon scraps | |
| CN108642230A (en) | A kind of scrap steel preheating method, semi-steel making process and the method for improving steel scrap consumption using semisteel smelting | |
| CN107245637A (en) | A kind of AOD smelts the method and a kind of AOD furnace of high manganese stainless steel | |
| CN211367630U (en) | Steel-smelting equipment | |
| CN104120213A (en) | Method and device for external desulfurization and refining of molten iron through injecting magnesium steam | |
| CN102534093A (en) | Control method of two-stage auxiliary material module in revolving furnace smelting process | |
| CN103589867A (en) | Method and device for treating ironmaking ash, mud and mill tailings by plasma torch heating technology | |
| KR20180106857A (en) | Apparatus for supplying recarburizer of electric furnace using tire powder and supplying method thereof | |
| CN103614609B (en) | A kind of stainless steel smelting desiliconization of hot metal method | |
| CN107457408A (en) | The sensing atomization of continous way cold crucible prepares titanium valve equipment | |
| CN202709721U (en) | LF (ladle furnace) device | |
| CN102559998A (en) | Technology for online dusting desulfuration of steel ladles | |
| CN108624739B (en) | Steelmaking equipment and smelting method for steelmaking by using scrap steel | |
| CN2804756Y (en) | Top-bottom complex blast non-vacuum induction furnace | |
| CN103456228B (en) | Industrial metallurgy dynamic model | |
| CN103993132B (en) | The method of LF stove smelting low-nitrogen steel | |
| CN102735053B (en) | LF (low frequency) furnace device, and method for processing molten iron of blast furnace | |
| CN104726738A (en) | Crystalline silicon waste treatment method | |
| CN203190785U (en) | Furnace internal Perrin process type electric arc metallurgical equipment for smelting of multiple kinds of special alloy | |
| CN205067396U (en) | Hot modified test device of refining slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130130 Effective date of abandoning: 20140416 |
|
| RGAV | Abandon patent right to avoid regrant |