CN206089724U - EBT electric stove is high -efficient supplementary with grey device - Google Patents
EBT electric stove is high -efficient supplementary with grey device Download PDFInfo
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- CN206089724U CN206089724U CN201621105813.8U CN201621105813U CN206089724U CN 206089724 U CN206089724 U CN 206089724U CN 201621105813 U CN201621105813 U CN 201621105813U CN 206089724 U CN206089724 U CN 206089724U
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- ash
- auxiliary
- valve
- guide chutes
- feed opening
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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 utility model provides a EBT electric stove is high -efficient supplementary with grey device, belongs to electric stove melting equipment technical field for add the ash to the EBT electric stove. Its technical scheme is: the scale hooper is installed in overhead bunker's below, and the supplementary ash can that adds installs in the below of scale hooper, and the direction chute is installed in the supplementary ash can's of adding below, overhead bunker, the supplementary upper end opening that adds ash can, and overhead bunker, the supplementary lower extreme that adds ash can have the feed opening respectively, install blanking valve on the feed opening respectively, and the direction chute inclines inclined to be put, and the upper end and the supplementary blanking valve who adds the ash can feed opening of direction chute are connected relatively, and the lower extreme and the electric stove molten bath ash can 1 of direction chute put relatively. The utility model discloses it is easy and simple to handle, long 4 when adding the ash between the 8s, can feeding the clearance and going on revolving the bell, do not occupy any support time, lime is spreaded evenly simultaneously, and it is effectual to change sediment slag formation, has fully optimized the smelting condition, has effectively shortened the smelting cycle, has reduced manufacturing cost, has improved production efficiency.
Description
Technical field
The utility model be related to it is a kind of to EBT electric furnaces carry out plus ash servicing unit, belong to electric furnace smelting equipment and technology neck
Domain.
Background technology
Slag during electric furnace steel tapping is oxidisability slag, and this oxidisability slag brings ladle refining process into will be to refining
Bring totally unfavorable impact.Around avoiding oxidizing slag from entering ladle refining process, a series of slag steel separation methods are occurred in that, its
Middle effect is best, it is most widely used be EBT methods, i.e. eccentric bottom tapping method is referred to as using the electric furnace of eccentric bottom tapping method
EBT electric furnaces.
Electric furnace slag-making needs to add lime, lime used by electric furnace slag-making typically with being added in material basket bottom, or before charging
Lime is added in into furnace bottom using hopper or belt feeder, process needs the regular hour, bath temperature can be fast under the conditions of opening wide
Prompt drop is low, lime with molten bath stay slag to contact after, immediately in one layer of skull of lime block Surface Creation, the intensification of skull and fusing
After the skull fusing of the certain heat of needs and time, only lime surface, the superficial layer of lime block just starts and liquid slag phase
Contact, and react, progressively melt.Impact of the slagging opportunity and slagging effect of early stage first slag to whole furnace run is very
It is huge, typically lime is added to material basket bottom, the rebasing temperature of lime is low, and fusing is slow, affects first slag to be formed, reduction dephosphorization efficiency,
Reduce oxygen utilization rate, increase blowing splash loss.If added using hopper or belt feeder, non-cutting time can be increased, be affected
Smelting cycle, at the same bell to screw out top of the slag cooling in molten bath when waiting very rapid, whne hopper or belt feeder in place when temperature not
In the best opportunity.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of EBT electric furnace highly effectives auxiliary plus apparatus for ash, this to add
Apparatus for ash can realize that lime is quantitative, quickly sprawl addition molten bath center, any non-cutting time is not take up, while lime is sprawled
Uniformly, slugging slagging effect is good, can effectively shorten smelting cycle, improve production efficiency.
Solving the technical scheme of above-mentioned technical problem is：
A kind of EBT electric furnace highly effectives auxiliary plus apparatus for ash, it includes that high hopper, scale hooper, auxiliary defecation tank, guiding are slipped
Groove, scale hooper is arranged on the lower section of high hopper, aids in defecation tank to be arranged on the lower section of scale hooper, and guide chutes are arranged on auxiliary
The lower section of defecation tank, high hopper, the upper end open of auxiliary defecation tank, under high hopper, the lower end of auxiliary defecation tank have respectively
Material mouth, is separately installed with blanking valve, guide chutes slant setting, under the upper end and auxiliary defecation tank of guide chutes on feed opening
The blanking valve of material mouth is relative to be connected, and the lower end of guide chutes is relative with electric furnace molten bath center.
Above-mentioned EBT electric furnace highly effectives auxiliary plus apparatus for ash, the blanking valve that the auxiliary defecation tank feed opening is installed is pneumatic
Valve, operated pneumatic valve is made up of cylinder, cylinder push-rod, valve plate, valve plate slideway, and valve plate slideway is arranged on auxiliary defecation tank feed opening
Both sides, valve plate both sides are inlaid in valve plate slideway, valve plate with valve plate slideway to be slidably matched, the rear end of valve plate and cylinder push-rod
It is connected, cylinder push-rod is installed in the cylinder, and cylinder is connected with compressed air piping.
Above-mentioned EBT electric furnace highly effectives auxiliary plus apparatus for ash, the guide chutes are made up of base plate and biside plate, the plate face of base plate
In sector, the upper width of base plate is more than lower width, and biside plate is respectively perpendicular the both sides for being welded on base plate, before guide chutes
5-10 ° of end opening radian, the front end of guide chutes is 5-8m away from melt pool height, and the material of guide chutes is thrown into drop point into molten bath
The heart.
The beneficial effects of the utility model are：
High hopper of the present utility model and scale hooper are weighed in lime material, and the lime material after weighing is added to auxiliary
In defecation tank, the operated pneumatic valve of defecation tank is aided in lime material to be added in electric furnace from guide chutes after opening.The utility model
Scale hooper can realize the accurate quantitative analysis of lime, operated pneumatic valve and guide chutes can be in tapping Bi Xuan bells to the iron making that feeds
Lime is quickly sprawled addition molten bath between water, using steel is stayed in stove the high temperature of slag, height are stayed（FeO）The advantages such as content, quickly melt
Fossil ash, forms first slag.The utility model is easy to operate, plus grey duration is between 4-8s, can carry out in rotation bell charging gap,
Any non-cutting time is not take up, while lime is sprawled uniformly, slugging slagging effect is good, fully optimizes smelting condition, effectively contracting
Short smelting cycle, reduces every smelting and consumes, and reduces production cost, improves production efficiency.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Mark in figure as follows：High hopper 1, scale hooper 2, auxiliary defecation tank 3, guide chutes 4, operated pneumatic valve 5, cylinder 6,
Cylinder push-rod 7, valve plate 8, valve plate slideway 9.
Specific embodiment
The utility model is made up of high hopper 1, scale hooper 2, auxiliary defecation tank 3, guide chutes 4, operated pneumatic valve 5.
Show in figure, scale hooper 2 is arranged on the lower section of high hopper 1, and there are feed opening, feed opening in the lower end of high hopper 1
Blanking valve is installed, scale hooper 2 is relative with blanking valve.Before charging, by charging belt（Or batch can）To in high hopper 1
Addition active lime, the storage capacity of high hopper 1 is 6-10t.During charging, operating personnel are added by the default auxiliary lime of master control room
Enter amount, the blanking valve of high hopper 1 is opened, and lime enters scale hooper 2 and weighs, and reaches the closing blanking of high hopper 1 after preset value
Valve.
Show in figure, aid in defecation tank 3 to be arranged on the lower section of scale hooper 2, scale hooper 2 starts after weighing to lime material,
Lime material is added in auxiliary defecation tank 3 and lays in.
Show in figure, aiding in the lower end of defecation tank 3 has feed opening, and operated pneumatic valve 5 is provided with feed opening.Operated pneumatic valve 5
It is made up of cylinder 6, cylinder push-rod 7, valve plate 8, valve plate slideway 9, valve plate slideway 9 is arranged on the both sides of the auxiliary feed opening of defecation tank 3,
The both sides of valve plate 8 are inlaid in valve plate slideway 9, and valve plate 8 can slide in valve plate slideway 9, to close and open auxiliary defecation tank 3
Feed opening, the rear end of valve plate 8 is connected with cylinder push-rod 7, and cylinder push-rod 7 is arranged in cylinder 6, cylinder 6 and compressed air
Pipeline is connected.
Show in figure, guide chutes 4 are arranged on the lower section of the auxiliary feed opening of defecation tank 3, the slant setting of guide chutes 4 is led
To the upper end connection relative with the operated pneumatic valve 5 of the auxiliary feed opening of defecation tank 3 of chute 4, lower end and the electric furnace molten bath of guide chutes 4
Center is relative.
Show in figure, guide chutes 4 are made up of base plate and biside plate, the plate face of base plate is in sector, the upper width of base plate
More than lower width, biside plate is respectively perpendicular the both sides for being welded on base plate, and 5-10 ° of the front opening radian of guide chutes 4 is oriented to
The front end of chute 4 is 5-8m away from melt pool height, and the material of guide chutes 4 is thrown into drop point to molten bath center.When adding ash every time, pass through
Guide chutes 4 add 1.5-3.0t lime in molten bath, and quick formation preferably smelt first slag, lifts smelting condition.
Operating process of the present utility model is as follows：
（1）Standby ash manipulation：In upper heat smelting process, according to lower stove dispensing structure and molten bath Si capacity, institute is set
Lime consumption is needed, calculating lime adding amount should meet molten bath basicity >=2.0.Weighed accordingly by scale hooper 2 after amount of lime setting
Amount lime is added in auxiliary defecation tank 3, in case using.
（2）Operation before tapping：Adjustment slag before tapping, plus 10-20kg carbon dusts slag, and grate deliberately slagging in front and back, put
Quantity of slag 3-5t, oxygen flow 2000-3000m/h saunters slag, good to slag fluidity, can not too purge the top of the slag and cause in slag
（FeO）It is too high, during 1620 DEG C of bath temperature, grate tapping.
（3）Auxiliary plus ash manipulation：Tapping is finished, and bell screws out the operated pneumatic valve 5 of auxiliary defecation tank 3 simultaneously and opens, and lime is fast
Fast Jing guide chutes 4 sprawl addition molten bath, by molten bath high temperature and stay slag high（FeO）Content, good fluidity fast melt stone
Ash, forms first slag.Subsequently normally feed hot metal charging.
The utility model is installed in certain iron company 90t electric furnaces and come into operation, and its normal production operation technology has been included
Require, comprehensively reduction by 9 minutes, reduction steel technology 8kg/t steel, reduction lime consumption 3kg/t steel, tapping phosphorus contain smelting cycle
Amount compliance rate is improved to 99.6%, can create 436.52 ten thousand yuan of effect year.
Claims (3)
1. a kind of EBT electric furnace highly effectives auxiliary adds apparatus for ash, it is characterised in that：It includes high hopper（1）, scale hooper（2）, auxiliary
Defecation tank（3）, guide chutes（4）, scale hooper（2）Installed in high hopper（1）Lower section, aid in defecation tank（3）Installed in title
Batch box（2）Lower section, guide chutes（4）Installed in auxiliary defecation tank（3）Lower section, high hopper（1）, auxiliary defecation tank（3）
Upper end open, high hopper（1）, auxiliary defecation tank（3）Lower end have feed opening respectively, blanking is separately installed with feed opening
Valve, guide chutes（4）Slant setting, guide chutes（4）Upper end with auxiliary defecation tank（3）The blanking valve of feed opening is relative
Connection, guide chutes（4）Lower end it is relative with electric furnace molten bath center.
2. EBT electric furnace highly effectives auxiliary according to claim 1 adds apparatus for ash, it is characterised in that：The auxiliary defecation tank（3）
The blanking valve that feed opening is installed is operated pneumatic valve（5）, operated pneumatic valve（5）By cylinder（6）, cylinder push-rod（7）, valve plate（8）, valve
Plate slideway（9）Composition, valve plate slideway（9）Installed in auxiliary defecation tank（3）The both sides of feed opening, valve plate（8）Both sides be inlaid in
Valve plate slideway（9）In, valve plate（8）With valve plate slideway（9）To be slidably matched, valve plate（8）Rear end and cylinder push-rod（7）It is connected
Connect, cylinder push-rod（7）Installed in cylinder（6）In, cylinder（6）It is connected with compressed air piping.
3. EBT electric furnace highly effectives auxiliary according to claim 2 adds apparatus for ash, it is characterised in that：The guide chutes（4）By
Base plate and biside plate are constituted, and in sector, the upper width of base plate is more than lower width to the plate face of base plate, and biside plate is respectively perpendicular weldering
It is connected on the both sides of base plate, guide chutes（4）5-10 ° of front opening radian, guide chutes（4）Front end away from melt pool height be 5-
8m, guide chutes（4）Material be thrown into drop point to molten bath center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621105813.8U CN206089724U (en) | 2016-10-09 | 2016-10-09 | EBT electric stove is high -efficient supplementary with grey device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621105813.8U CN206089724U (en) | 2016-10-09 | 2016-10-09 | EBT electric stove is high -efficient supplementary with grey device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206089724U true CN206089724U (en) | 2017-04-12 |
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ID=58482223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621105813.8U Active CN206089724U (en) | 2016-10-09 | 2016-10-09 | EBT electric stove is high -efficient supplementary with grey device |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317858A (en) * | 2018-04-23 | 2018-07-24 | 莱芜钢铁集团有限公司 | Sintering machine small mine box feed bin |
-
2016
- 2016-10-09 CN CN201621105813.8U patent/CN206089724U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317858A (en) * | 2018-04-23 | 2018-07-24 | 莱芜钢铁集团有限公司 | Sintering machine small mine box feed bin |
| CN108317858B (en) * | 2018-04-23 | 2023-10-03 | 莱芜钢铁集团有限公司 | Small mineral tank storage bin of sintering machine |
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