CN102424890A - Logistic system for feeding in smelting of electric furnace and feeding method thereof - Google Patents
Logistic system for feeding in smelting of electric furnace and feeding method thereof Download PDFInfo
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- CN102424890A CN102424890A CN201110432643XA CN201110432643A CN102424890A CN 102424890 A CN102424890 A CN 102424890A CN 201110432643X A CN201110432643X A CN 201110432643XA CN 201110432643 A CN201110432643 A CN 201110432643A CN 102424890 A CN102424890 A CN 102424890A
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- electric furnace
- hopper
- track
- feeding device
- crane
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- 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
Abstract
The invention discloses a logistic system for feeding in smelting of an electric furnace, which comprises the electric furnace, a closed feeding device and a material delivery line. The material delivery line comprises a stockyard, two parallel tracks arranged between the stockyard and the closed feeding device, a lifting appliance arranged in the stockyard, a material chute used for feeding and a crane used for lifting the material chute between a trolley and the feeding device, the closed feeding device is provided with two material chute mounting positions for alternately switching feeding positions, and a material chute on the delivery trolley is arranged parallel to the material chute arranged in the material chute mounting positions. In the feeding method, the waste steel delivery speed and the feeding speed can be increased due to the two tracks and at least two material chute mounting positions capable of being switched, the feeding time for the electric furnace can be shortened, and the continuous production of the electric furnace can be realized via the logistic system. In the production mode, the power consumption is low, the operation is flexible, and the safety redundancy is high. For electric furnaces of 110t, the smelting cycle between different furnaces can be shortened to be within 40-54 minutes, and the system is suitable for continuous large-scale production.
Description
Technical field
The present invention relates to metallurgical technology field, logistics system and method in particularly a kind of electrosmelting.
Background technology
A kind of important method for making steel of electrosmelting, it produces molten steel through arc-melting steel scrap metal.In the prior art, the waste steel for electric furnace feeding conveying method mainly contains full steel scrap basket conveying, CONSTEEL conveying etc.; All there is following shortcoming in above-mentioned steel scrap feeding conveying method: 1) logistics transfer rate between steel scrap stock ground and the electric furnace and safety can not satisfy the requirement of quick airtight charging; Can't reach the omnidistance airtight production of electric furnace and smelt standard with stabilising arc, cause power consumption high, operate underaction, safe margin is lower; 2) smelting cycle is longer between heat.
Therefore, need to explore a kind of logistics system and loading method that is used for electrosmelting, make mass transport quick, smooth and easy, reliable,, and shorten smelting cycle between heat with reduction power consumption, raising safe margin.
Summary of the invention
In view of this, the present invention provides logistics system and the loading method thereof that is used for the electric furnace charging in a kind of electrosmelting, to solve the technical problem that existing waste steel for electric furnace charging method speed is slow, logistics has some setbacks.
The logistics system that is used for the electric furnace charging in a kind of electrosmelting of the present invention is logistics system efficiently and the Production Flow Chart to " being used for adding to electric furnace the rapid loading device and the charging process thereof of steel scrap " 201110103806.X and PCT/CN2011/076815 proposition.Comprise electric furnace and connect the airtight feeding device that is used to feed in raw material with electric furnace; Also comprise the mass transport line; Said mass transport line comprises the stock ground, be arranged at track between stock ground and the airtight feeding device, cover electric furnace, airtight feeding device and the track crane near airtight feeding device one end with the corresponding suspender in the stock ground, the hopper that is used to feed and the handling scope of being arranged at of track; Every track is provided with the conveying carrier that is used to place hopper; At least two hopper installation positions that switch to feed location in turn are set on the said airtight feeding device, and the hopper on the hopper on the said conveying carrier and the hopper installation position after the installation is parallel.
Further, said track number is two, and the length of two tracks is different;
Further, two tracks that said length is different all are positioned at a side of airtight feeding device;
Further, correspondingly in the said stock ground be provided with online storing platform with every track;
Further, said suspender is magnetic disc suspending or hydraulic grab;
Further, every track is provided with at least two conveying carriers;
Further, also comprise drop-bottom material basket, said drop-bottom material basket is positioned in the handling scope of crane;
Further, the track of said crane is vertical each other with the track of conveying carrier.
The invention also discloses a kind of method of utilizing described logistics system to the electric furnace charging, may further comprise the steps:
A) through suspender the hopper that is placed on the conveying carrier is carried out online getting the raw materials ready, be positioned at two conveying carriers on the track and alternately get the raw materials ready;
B) conveying carrier moves to airtight feeding device side, is positioned at the side of two conveying carrier alternate runs on the track to airtight feeding device;
C) by crane hopper is lifted on two hopper installation positions;
D) switch in turn through the hopper on two hopper installation positions electric furnace is feeded; In the charging process; On the crane conveying carrier that empty hopper handling is extremely empty; And with another hopper installation position of getting hopper handling of material to sky ready, conveying carrier returns the stock ground and gets the raw materials ready once more, realizes continuing fast charging.
Further; Carry out before the said step a); Hopper on the platform in the conveying carrier is replaced with drop-bottom material basket through the crane handling; In step a), drop-bottom material basket and hopper are got the raw materials ready simultaneously, and after step b) is accomplished, the handling of drop-bottom material basket is directly fed in raw material to electric furnace by crane.
Beneficial effect of the present invention: the logistics system that is used for the electric furnace charging in the electrosmelting of the present invention comprises electric furnace, connects the airtight feeding device and the mass transport line that are used to feed in raw material with electric furnace; The mass transport line comprises the stock ground, be arranged at two parallel orbits between stock ground and the airtight feeding device, cover electric furnace, airtight feeding device and the track crane near airtight feeding device one end with every the corresponding suspender in the stock ground, the hopper that is used to feed and handling scope of being arranged at of track; Every track is provided with the conveying carrier that is used to place hopper; Two hopper installation positions that switch to feed location in turn are set on the said airtight feeding device; Hopper after installing on hopper on the said conveying carrier and the hopper installation position is parallel; In the loading method of the present invention; Utilize two tracks and at least two switchable hopper installation positions to make steel scrap carry and improve with feed rate, improve steel scrap carry and the charging process in speed, this production model power consumption is low, flexible operation, safe margin height; Can effectively shorten smelting cycle between heat, be fit to serialization scale operation; Computer Simulation shows that for the 110t electric furnace, through above-mentioned logistics system and carrying method, the steel scrap in the full scrap smelting carries charging speed can satisfy the heat production tapping cycle request of 40～54min.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Logistics conveyer system structural representation when Fig. 1 produces for the present invention's whole process is airtight;
Logistics conveyer system structural representation when Fig. 2 produces for the non-whole process of the present invention is airtight;
Fig. 3 and system architecture synoptic diagram when adopting two cranes vertical with the logistics transfer limes for crane runway of the present invention;
Fig. 4 and system architecture synoptic diagram when adopting two electric furnaces vertical with the logistics transfer limes for crane runway of the present invention.
Embodiment
Below will combine accompanying drawing that the present invention is elaborated: the logistics system that is used for the electric furnace charging in the electrosmelting of present embodiment; Comprise electric furnace 1, connect the airtight feeding device 2 and the mass transport line that are used to feed in raw material with electric furnace 1; Said mass transport line comprises stock ground 3, be arranged at two parallel orbits between stock ground 3 and the airtight feeding device 2, cover electric furnace 1, airtight feeding device 2 and the track crane 7 near airtight feeding device 2 one ends with every the corresponding suspender 5 in the stock ground 3, the hopper 6 that is used to feed and handling scopes of being arranged at of track; Suspender is selected 6 for use, and every track correspondence is provided with 3, and crane can be a crane; Also can be that many cranes are used; Every track is provided with the conveying carrier 8 that is used to place hopper 6, in the present embodiment, two conveying carriers is set on every track; At least two hopper installation positions 9 that switch to feed location in turn are set on the said airtight feeding device 2; Hopper after installing on hopper on the said conveying carrier 8 and the hopper installation position 9 is parallel, and hoisting process does not rotate hopper, lifts safe and efficient.In the smelting process, can realize continuous airtight material loading, and realize the stabilising arc smelting, reduce the electric furnace energy consumption, and safe margin be high through two tracks and switchable hopper installation position.
As the further improvement of technique scheme, said two track 4a, 4b all are positioned at a side of airtight feeding device 2, and crane operation span is little, and transfer limes is compacter, and floor space is little.
Further improvement as technique scheme; The length of said two tracks is different; Short track 4a is between long track 4b and airtight feeding device 2; The purpose of track length is to distinguish the charging working district of hopper, and it is distance travelled to reduce conveying carrier 8, enlarges the area and the windrow reserves of stock yard.
Further improvement as technique scheme; Correspondingly in the said stock ground 3 be provided with online storing platform 10 with every track; When hopper not when getting the raw materials ready the position; Suspender can be transported to online storing platform 10 with steel scrap and carry out temporary storage, so that hopper carries out superfast loading when putting in place, makes the flexibility of transfer limes stronger.
As the further improvement of technique scheme, said suspender 5 is magnetic disc suspending or hydraulic grab, and material loading is fast reliable.
As the further improvement of technique scheme, also comprise drop-bottom material basket 11, said drop-bottom material basket 11 is positioned in the handling scope of crane 7; In the present embodiment; Drop-bottom material basket is positioned at track one side after being placed on airtight feeding device, is convenient to the crane handling, and arranges compacter.
As the further improvement of technique scheme, the track 12 of said crane is vertical each other, as shown in Figure 3 with the track of conveying carrier, and this layout is very beneficial for the layout and the operation of crane, and when adopting two crane operations, charging speed improves greatly.
Certainly; On the basis of technique scheme; For boosting productivity and reducing the crane facility investment, also can further expand, as: system shown in Figure 4 adopts the structure of two electric furnaces and three groups of transfer limess of three cranes; Every group of transfer limes suspender selected 4 for use, and this system can satisfy the needs of every electric furnace less than quick smelting cycle steel scrap conveying of full steel scrap in 40 minutes and charging.
Utilize the method for the above-mentioned logistics system of claim, may further comprise the steps the electric furnace charging:
A) hopper 6 that is placed on the conveying carrier 8 through 5 pairs of suspenders carries out online getting the raw materials ready; Both can directly feed to hopper; Also can earlier steel scrap handling to online storing platform be stored transfer; Fast to the hopper charging, be positioned at two conveying carriers on the track and alternately get the raw materials ready then, avoid the idleness of equipment to wait for;
B) conveying carrier 8 on track moves to airtight feeding device 2 sides, and the chassis on another track returns the stock ground, promptly is positioned at the side of two conveying carrier alternate runs on the track to airtight feeding device;
C) by crane 7 hopper 6 is lifted on two hopper installation positions 9;
D) switch in turn through the hopper on two hopper installation positions 9 electric furnace 1 is feeded; In the charging process, through crane 7 with empty hopper handling to empty conveying carrier, and with another hopper handling of getting material ready to empty hopper installation position; Conveying carrier 8 returns the stock ground and gets the raw materials ready once more; Make in the process of changing hopper also can continue to feed in raw material, can realize the smelting of fully-closed smelting and stabilising arc, effectively reduce power consumption.
For satisfying the needs of the airtight smelting technology of some non-whole process; Can be before carrying out said step a; Hopper on the platform in the conveying carrier is replaced with drop-bottom material basket 11 through the crane handling, in step a), drop-bottom material basket 11 and hopper is got the raw materials ready simultaneously, and after step b) is accomplished; By crane 7 11 handlings of drop-bottom material basket are directly carried out reinforced (about 50% raw material) first to electric furnace 1, this heat surplus stock subsequently adds electric furnace by hopper and airtight feeding device.This production model is less demanding to staying steel, generally needs only 10%, is suitable for the many variety production of short run, has also improved the reliability that electric furnace is produced in addition.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. be used for the logistics system that electric furnace is feeded in an electrosmelting; Comprise electric furnace (1) and connect the airtight feeding device (2) that is used to feed in raw material with electric furnace (1); It is characterized in that: also comprise the mass transport line; Said mass transport line comprises stock ground (3), be arranged at track between stock ground (3) and the airtight feeding device (2), with the corresponding suspender (5) in the stock ground (3), the hopper (6) that is used to feed and handling scope covering electric furnace (1), airtight feeding device (2) and track the crane (7) of being arranged at of track near airtight feeding device (2) one ends; Every track is provided with the conveying carrier (8) that is used to place hopper (6); Said airtight feeding device (2) is gone up at least two hopper installation positions (9) that switch to feed location in turn is set, and the hopper on the said conveying carrier (8) is parallel with the hopper that go up after installing hopper installation position (9).
2. be used for the logistics system of electric furnace charging in the electrosmelting according to claim 1, it is characterized in that: said track number is two, and the length of two tracks is different.
3. be used for the logistics system of electric furnace charging in the electrosmelting according to claim 2, it is characterized in that: two tracks that said length is different all are positioned at a side of airtight feeding device (2).
4. be used for the logistics system of electric furnace charging in the electrosmelting according to claim 3, it is characterized in that: in said stock ground (3) with every corresponding online storing platform (10) that is provided with of track.
5. be used for the logistics system of electric furnace charging in the electrosmelting according to claim 4, it is characterized in that: said suspender (5) is magnetic disc suspending or hydraulic grab.
6. be used for the logistics system of electric furnace charging in the electrosmelting according to claim 5, it is characterized in that: every track is provided with at least one or two conveying carrier (8).
7. be used for the logistics system of electric furnace charging in the electrosmelting according to claim 6, it is characterized in that: also comprise drop-bottom material basket (11), said drop-bottom material basket (11) is positioned in the handling scope of crane (7).
8. according to the logistics system that is used for the electric furnace charging in any described electrosmelting of claim 1-7, it is characterized in that: the track of said crane (7) is vertical each other with the track of conveying carrier (8).
9. method of utilizing any described logistics system of claim 1-8 to electric furnace charging is characterized in that: may further comprise the steps:
A) through suspender (5) hopper (6) that is placed on the conveying carrier (8) is carried out online getting the raw materials ready, be positioned at two conveying carriers on the track and alternately get the raw materials ready;
B) conveying carrier (8) moves to airtight feeding device (2) side, is positioned at the side of two conveying carrier alternate runs on the track to airtight feeding device (2);
C) by crane (7) hopper (6) is lifted on two hopper installation positions (9);
D) switch in turn through the hopper on two hopper installation positions (9) electric furnace (1) is feeded; In the charging process; On crane (7) conveying carrier that empty hopper handling is extremely empty; And with another hopper installation position of getting hopper handling of material to sky ready, conveying carrier (8) returns the stock ground and gets the raw materials ready once more.
10. the method to the electric furnace charging according to claim 9; It is characterized in that: carry out before the said step a); Hopper on the platform in the conveying carrier is replaced with drop-bottom material basket (11) through the crane handling; In step a), drop-bottom material basket (11) and hopper are got the raw materials ready simultaneously, and after step b) is accomplished, drop-bottom material basket (11) handling is directly fed in raw material to electric furnace (1) by crane (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110432643XA CN102424890B (en) | 2011-12-21 | 2011-12-21 | Logistic system for feeding in smelting of electric furnace and feeding method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110432643XA CN102424890B (en) | 2011-12-21 | 2011-12-21 | Logistic system for feeding in smelting of electric furnace and feeding method thereof |
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| CN102424890A true CN102424890A (en) | 2012-04-25 |
| CN102424890B CN102424890B (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110432643XA Expired - Fee Related CN102424890B (en) | 2011-12-21 | 2011-12-21 | Logistic system for feeding in smelting of electric furnace and feeding method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111004888A (en) * | 2019-12-31 | 2020-04-14 | 中冶南方工程技术有限公司 | Scrap steel adding method for ladle car type ladle refining furnace |
| CN111187878A (en) * | 2020-02-14 | 2020-05-22 | 中冶赛迪工程技术股份有限公司 | Continuous charging electric furnace integrating continuous batching and centralized batching |
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2011
- 2011-12-21 CN CN201110432643XA patent/CN102424890B/en not_active Expired - Fee Related
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111004888A (en) * | 2019-12-31 | 2020-04-14 | 中冶南方工程技术有限公司 | Scrap steel adding method for ladle car type ladle refining furnace |
| CN111187878A (en) * | 2020-02-14 | 2020-05-22 | 中冶赛迪工程技术股份有限公司 | Continuous charging electric furnace integrating continuous batching and centralized batching |
| CN111187878B (en) * | 2020-02-14 | 2024-02-27 | 中冶赛迪工程技术股份有限公司 | Collect continuous batching and concentrate continuous feeding electric stove of batching in an organic whole |
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| CN102424890B (en) | 2013-05-29 |
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