CN105627733B - A kind of electric arc furnaces shock resistance baffling charging scrap steel preheating room-dedusting structure - Google Patents
A kind of electric arc furnaces shock resistance baffling charging scrap steel preheating room-dedusting structure Download PDFInfo
- Publication number
- CN105627733B CN105627733B CN201610177906.XA CN201610177906A CN105627733B CN 105627733 B CN105627733 B CN 105627733B CN 201610177906 A CN201610177906 A CN 201610177906A CN 105627733 B CN105627733 B CN 105627733B
- Authority
- CN
- China
- Prior art keywords
- scrap
- room
- steel
- electric arc
- baffling
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
- F27B3/085—Arc furnaces
-
- 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/18—Arrangements of devices for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
- F27D13/002—Preheating scrap
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
- F27D17/003—Extraction of waste gases, collection of fumes and hoods used therefor of waste gases emanating from an electric arc furnace
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/02—Charges containing ferrous elements
-
- 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 kind of electric arc furnaces shock resistance baffling charging scrap steel preheating room dedusting structures, belong to metallurgical technology field, including the scrap steel preheating room being obliquely installed, scrap steel preheating room lower end discharge port is connected with electric arc furnaces, and the upper end is equipped with dust removing tube room；The interface side of scrap steel preheating room and electric arc furnaces is equipped with finger class bracket；Scrap steel preheating room has at least one bending, offers charge door right over the upper end, and make the vertical plane of charge door that can not be projected directly on finger class bracket.The present invention is by bending upright preheating chamber, it avoids steel scrap directly to pound completely to fall on finger class bracket, and change the direction of motion of steel scrap using inclined-plane water conservancy diversion, so that friction and impact in being generated inside steel scrap, consume impact energy of the steel scrap to finger class bracket, and the blanking height of steel scrap is reduced, greatly reduce the maintenance of scrap preheater, greatly improves the reliability of equipment.The technology has extensive promotional value on electric arc furnaces.
Description
Technical field
The invention belongs to metallurgical technology fields, and in particular to a kind of electric arc furnaces shock resistance baffling charging scrap steel preheating room-remove
Dirt structure.
Background technology
Energy saving in electric-arc furnace steelmaking, consumption reduction, environmental protection are always one of the core technology of global EAF steelmaking technology development.
Wherein, it is one two domestic and international in a technology of research during the last ten years using electric arc furnaces smoke pre-heating steel scrap technology, but because
Its technical difficulty is big, at present only a small amount of scheme input actual use, Typical Representative such as finger shaft (DE4025249A1-
1992), vertical shaft side pushes away charging (US2007/0013112A1) and vibrates the CONSTEEL (US5400358-1992) of continuous charging
Technology.
Finger shaft electric arc furnaces is German FUCS companies in early 1990s opening and develops, and is a kind of typical
Steel scrap preheating device of electric arc furnace, so-called " finger " refer to having leading to for single row or multiple rows between shaft furnace and electric arc furnaces connection interface
Cross the finger class bracket of mechanical device opening and closing.It is useless by being directly added into waste gas stream in arc furnace smelting procedure
Steel and make full use of warm-up ability of the exhaust gas to steel scrap, be not only utilize tangible energy, and using second-time burning chemical energy.
Therefore, this kind of scrap steel preheating technology with material-supporting device can penetrate steel scrap layer because of flue gas, and pre-heating energy-saving effect is preferable, can reach ton
60~100kw.h of steel, still, the direct impact in Classical Shaft Furnace due to steel scrap to finger class bracket is easy to cause and is pounded by steel scrap
It is bad, plant maintenance is increased, promoting the use of for scrap steel preheating technology is affected.
For this purpose, if avoiding steel scrap from directly pounding falls on finger class bracket, rushing for steel scrap charging process can be significantly reduced
It hits, reduces the maintenance of equipment.
Invention content
In view of this, it is an object of the invention to provide a kind of shock resistance baffling charging skill to scrap steel preheating type electric arc furnaces
Art, and when to feed to scrap steel preheating room with external charging hanging basket, avoids the occurrence of steel scrap and directly pounds and fall on finger class bracket,
Meanwhile scrap steel preheating room is mounted on elastic support structure, the impact resistance of scrap steel preheating room is further promoted, to reduce
The maintenance of equipment improves the safety of production；And the arrangement of baffling side and dust removing tube room is combined, the blanking for minimizing equipment is high
Degree, and then the impact during steel scrap feeds to equipment is reduced, improve equipment dependability.
In order to achieve the above objectives, the present invention provides the following technical solutions：A kind of electric arc furnaces shock resistance baffling charging steel scrap is pre-
Hot cell-dedusting structure, including the scrap steel preheating room that is obliquely installed, scrap steel preheating room lower end discharge port are connected with electric arc furnaces
It connects, the upper end is equipped with dust removing tube room；The interface side of the scrap steel preheating room and electric arc furnaces is equipped with finger class bracket, useless for barrier
Steel or control blanking, the scrap steel preheating room have at least one bending, offer charge door right over the upper end, and make charging
The vertical plane of mouth can not be projected directly on finger class bracket.
Further, it is the trench bottom of concave arc shape that the scrap steel preheating room, which has section,.
Further, the charge door is equipped with hermatic door, and the hermatic door is slidingtype or flip structure.
Further, the finger class bracket is backgauge tooth harrow or finger.
Further, the dust removing tube room is set on the arbitrarily non-baffling side of scrap steel preheating room upper periphery.
Further, the scrap steel preheating room on baffling side similar in electric arc furnaces or side wall be equipped with vibrator.
Further, the scrap steel preheating room is mounted on elastic support structure.
Further, the elastic support structure is multilayer cantilever leaf spring, multilayer freely-supported leaf spring, butterfly spring, helical spring or company
One or more combinations in bar.
Further, it is additionally provided with above the charge door and adds with the matched dust cover of external charging chute, dust cover, outside
Expect that skewed slot and scrap steel preheating room constitute the secondary heteropleural bending of steel scrap baffling charging.
The beneficial effects of the present invention are：
1, by opening up charge door right over the upper end of scrap steel preheating room and processing at least one bending on its side wall, and
So that the perspective plane of charge door in vertical direction can not be projected directly on finger class bracket；I.e. this technical characteristic make by
When outside charging hanging basket vertically feeds, steel scrap material, which can not be pounded directly, to be fallen on finger class bracket, is conducive to reduce steel scrap material
Impact to finger class bracket reduces the maintenance of equipment, improves efficiency and the safety of production.
It 2, usually can be pre- in steel scrap by combining the arrangement of bending and dust removing tube room, and in view of the size of charge door
Occurs the inclined-plane of at least two water conservancy diversion in hot cell, which can effectively reduce the blanking height of steel scrap, reduce blanking
Impact to inclined-plane；Meanwhile two inclined-planes also change the direction of motion of blanking so that are produced between the material and material of vertical drop
Raw friction and mutually impact, consume impact energy, to reduce impact of the steel scrap to equipment.
3, the scrap steel preheating room with bending reduces the spatial altitude of the scrap steel preheating room of same volume, and then reduces
Impact energy of the same amount steel scrap to equipment.
4, by the way that scrap steel preheating room to be mounted on elastic support structure, reduce steel scrap material to scrap steel preheating room baffling
The impact in face enhances the service life of scrap steel preheating room.
5, it by the way that concave arc shape slot bottom is made in scrap steel preheating room lower part, improves scrap steel preheating room and is hit the shock resistance in face
Ability, and improve the fitness of its cloth and the arc type of furnace.
6, it by the way that vibrator is arranged on scrap steel preheating room, and is combined into buffering and vibration system with elastic support structure
System, the system constitute the contactless vibrational system with steel scrap material, give up with high inclination-angle as the steel scrap after possible preheating
Steel preheating chamber (with horizontal plane tilt 30~65 °) or repeatedly baffling steel scrap power transportation means, i.e., once occur steel scrap with
The production accident of scrap steel preheating room bonding or card resistance, may be used the propulsion means and electric arc furnaces is added in steel scrap.Meanwhile the exciting
The steel scrap vibrating transportation that device provides, can also bring following indirect effect：Scrap steel preheating room slot bottom selects smaller inclination angle, to
When being further reduced impact of the steel scrap to equipment, and can be caught on and be stablized by backgauge tooth harrow after scrap steel preheating room is added in steel scrap
(specific function is only limitted to the scrap preheater of backgauge tooth harrow structure), appropriate extraction section rake teeth reduce vital part tooth
The thermic load of rake improves scrap steel preheating effect；And what relatively small tilt angle (such as 40 degree of inclination angle) scrap steel preheating room may be brought works as tooth harrow
Steel scrap slides not smooth naturally when extraction charging, can be lured by vibrator or forced vibration conveying is solved.And swash
It shakes the cooperation of device vibration control and finger class bracket (backgauge tooth harrow) aperture, the controllable continuous charging of steel scrap material may be implemented.
Generally speaking, above-mentioned technology greatly reduces impact of the steel scrap material to finger class bracket, reduces such steel scrap
The maintenance of the most weak part of preheating device reduces and safeguards, possess huge throwing to improve the whole reliability of equipment operation
Money and the advantage built.
Description of the drawings
In order to keep the purpose of the present invention, technical solution and advantageous effect clearer, the present invention provides following attached drawing and carries out
Explanation：Wherein：
Fig. 1 is the structural schematic diagram of shock resistance baffling of the present invention charging scrap steel preheating room-dedusting structure (baffling)；
Fig. 2 is the sectional schematic diagram of scrap steel preheating room in shock resistance baffling of the present invention charging scrap steel preheating room-dedusting structure；
Fig. 3 is that finger class bracket is in shock resistance baffling of the present invention charging scrap steel preheating room-dedusting structure (baffling)
The structural schematic diagram of backgauge tooth harrow；
Fig. 4 is elastic support structure in shock resistance baffling of the present invention charging scrap steel preheating room-dedusting structure (baffling)
One schematic diagram；
Fig. 5 is elastic support structure in shock resistance baffling of the present invention charging scrap steel preheating room-dedusting structure (baffling)
Two schematic diagram；
Fig. 6 is resilient support in shock resistance baffling of the present invention charging scrap steel preheating room-dedusting structure (secondary heteropleural baffling)
The schematic diagram of structure three；
Fig. 7 is that steel scrap feeds in shock resistance baffling of the present invention charging scrap steel preheating room-dedusting structure (secondary heteropleural baffling)
Baffling schematic diagram twice
Reference numeral：1- electric arc furnace bodies；2- finger class brackets；3- scrap steel preheatings room；4- hermatic doors；5- dust removing tubes room；
6- steel scrap materials；7- vibrators；8- spring cupport structures；9- dust excluding hoods；Charging chute outside 10-；Feed hanging basket outside 11-；
Arrow line indicates steel scrap material baffling direction in figure.
Specific implementation mode
Below in conjunction with attached drawing, the preferred embodiment of the present invention is described in detail.
As shown in Figure 1, impact baffling charging scrap steel preheating room-dedusting structure in the present embodiment, including with electric arc furnaces sheet
The scrap steel preheating room 3 that body 1 is obliquely installed, the angle between the scrap steel preheating room 3 and horizontal plane are 30 °~65 °, and the steel scrap is pre-
Hot cell 3 is connected in its lower end discharge port with electric arc furnace body 1 by being arranged, and the upper end is equipped with dust removing tube room 5, and the steel scrap is pre-
The interface side of hot cell 3 and electric arc furnace body 1 is set there are one finger class bracket 2, for barrier steel scrap material 6 or control blanking；Institute
Stating the tool of scrap steel preheating room 3, there are one bendings, and the upper end surface offers charge door (unmarked), and makes the vertical throwing of charge door
Shadow face can not be projected directly on finger class bracket.In this way, the scrap steel preheating room 3 of bending so that charge door in vertical direction
Perspective plane can not be projected directly on finger class bracket 2 so that when vertically being fed by outside charging hanging basket 11, steel scrap material 6
It can not directly pound and fall on finger class bracket 2, be conducive to reduce impact of the steel scrap material 6 to finger class bracket, reduce the dimension of equipment
Shield, improves efficiency and the safety of production.Certainly in different embodiments, the quantity of the bending can be given up according to electric arc furnaces
The size of steel preheating chamber and steel scrap material selects one or more.
As shown in Fig. 2, it is the trench bottom of concave arc shape that the scrap steel preheating room 3 in the present embodiment, which has section,.In this way, having
It is hit the impact resistance in face conducive to scrap steel preheating room is improved, and improves the cooperation of its cloth and the arc-shaped type of furnace of electric furnace
Degree.The scrap steel preheating room 3 additionally uses water-cooling structure, the service life for improving scrap steel preheating room.
3 upper end charge door of the scrap steel preheating room in the present embodiment is equipped with sliding sealing door 4.In this way, can be to useless
Steel preheating chamber 3 plays the role of closing and unlatching, while sliding structure is conducive to operation and control.As shown in figure 3, when slidingtype is close
Closure door 4 is when closing from left to right, can closed air flowed into from charge door, force the steel scrap of plume penetration scrap steel preheating room 3, prevent
Flue gas is excessive.Certainly in different embodiments, the hermatic door 4 can be also flip structure, can equally reach above-mentioned purpose.
The dust removing tube room 5 in the present embodiment is set on the arbitrarily non-baffling side of 3 upper periphery of scrap steel preheating room, to prevent
Only material is fallen into dust removing tube.
As shown in figure 3, the finger class bracket 2 in the present embodiment is backgauge tooth harrow, the backgauge tooth harrow include rake teeth,
Rabble arm and crossbeam.In use, as shown in figure 4, for using external charging 11 vertical feed way of hanging basket, there are one curved for tool
The scrap steel preheating room 3 of folding there are two guide inclined-plane 3a, 3b, wherein guide inclined-plane 3b is shock resistance and cloth characteristic can make it is recessed
Arcuate bottom.Hermatic door 4 is opened, 5 exhausting of dust removing tube room reduces diffussion of dust, when steel scrap material 6 is fallen from charge door upper vertical,
When successively hitting guide inclined-plane 3a, 3b, whole 6 various pieces of steel scrap material can successively occur direction and change, and cause steel scrap object
Phase mutual friction inside material 6 and collision, final slide are blocked by backgauge tooth harrow, the steel scrap material 6 in outside charging hanging basket 11, by
Can not be projected directly on finger class bracket in the vertical plane of charge door, theoretically will not directly freely falling body directly pound
On backgauge tooth harrow, reduce impact of the steel scrap material 6 to equipment, and most of steel scrap material 6 is contacted with guide inclined-plane 3a, 3b
Drop can be much smaller than and directly pound the spatial altitude fallen.
Scrap steel preheating room described in the present embodiment 3 on baffling side similar in electric arc furnace body 1 or side wall be equipped with exciting
Device 7, and on elastic support structure 8.In this way, being propped up by the vibrator 7 coupled on scrap steel preheating room 3, and with elasticity
Support structure 8 combines the buffering and vibrational system for constituting scrap steel preheating room 3, and preheating chamber 3 plays buffering when receiving steel scrap material 6
Steel scrap material 6 can also be used as the steel scrap material 6 after possible preheating and block high inclination-angle to the impact effect of scrap steel preheating room 3
Power transportation means when scrap steel preheating room 3.(with 30~65 degree of horizontal plane), scrap steel preheating room 3 is specifically, high inclination-angle
The main transportation means of steel scrap, and the gravity that main carrying capacity is steel scrap.For example, consider that the friction coefficient of steel scrap and slot is 0.5,
45 degree of 3 bottom surface of scrap steel preheating room and horizontal plane inclination angle, then open backgauge tooth harrow, steel scrap material 6 can slide naturally；But steel scrap
Preheating generates extruding to 3 wall of preheating chamber so that steel scrap thermally expands, there are possibility make steel scrap be compressed on 3 wall of preheating chamber and
So that steel scrap can not fall off naturally, this can cause production accident；The vibrations to preheating chamber of vibrator 7 at this time, provide certain
Power carrying capacity, and the bridging structure between the scattered scrap steel block that can shake, release steel scrap are squeezed with the excessive of locular wall is preheated, loose heap
The steel scrap disengaging for putting winding one generates sliding in the slot bottom and side wall of preheating chamber, induces steel scrap material and is preheating indoor cunning
It falls.Vibrator 7 (vibrator is switched on finger class bracket when working) can give up in steel scrap material 6 and scrap steel preheating room 3
When steel high temperature bond, the propulsion means may be used and help steel scrap material 6 pre- with steel scrap with contactless induction or strength driving
3 trench bottom of hot cell is detached from, and is conveyed in landing to electric arc furnaces.In addition, the steel scrap vibrating transportation that vibrator 7 provides, it can also band
Carry out following indirect effect：3 slot bottom of scrap steel preheating room selects relatively small inclination value (such as taking 30~40 °), and the design is on the one hand
The total height of preheating chamber 3 and equipment is reduced, when the backgauge tooth harrow extraction that another aspect relatively small tilt angle preheating chamber may be brought feeds
Steel scrap slide naturally it is not smooth, can by after opening tooth harrow vibrator lure or forced vibration conveying solve.
In addition, steel scrap material 6 is added behind scrap steel preheating room 3 after being caught on and stablized by backgauge tooth harrow, the mutual of steel scrap is utilized
Wind characteristic and tilt preheating chamber steel scrap sliding force and weaken characteristic, can appropriate extraction section rake teeth, to reduce vital part
Thermic load improves the service life of backgauge tooth harrow, and improves that (this is special to be only limitted to the useless of tooth harrow structure to the pre-heat effect of steel scrap material
Steel preheating device).And the cooperation of 7 vibration control of vibrator and finger class bracket (backgauge tooth harrow) aperture, may be implemented steel scrap
The controllable continuous of material feeds.
It should be strongly noted that bonding or inducing steel scrap material 6 in scrap steel preheating room 3 by steel scrap to eliminate backgauge tooth harrow
The conveying of slot bottom slides, and vibrator can also be arranged in the crossbeam or rabble arm of backgauge tooth harrow.
As shown in figure 4, the elastic support 8 in figure is multilayer cantilever plate spring structure, and it is fixedly connected with trolley (unmarked).
In various embodiments, may be alternatively configured in multilayer freely-supported plate spring structure or Fig. 5 by during multiple butterfly springs are in series or Fig. 6 by
All kinds of elasticity that helical spring and connecting rod assembly are constituted or other or swinging support structure.
The present embodiment is there are one embodiment is advanced optimized, and as shown in Figure 6, Figure 7, i.e., external charging hanging basket 11 is replaced
It (can be hung away by crane, as steel scrap means of transport) at external charging chute 10, while being additionally provided with and being somebody's turn to do above the charge door
10 matched dust cover 9 of external charging chute is equipped with the sealing for doing straight line elevating movement in the outlet of external charging chute 10
Door (unmarked), external charging chute 10 and dust excluding hood 9 together form more bending shock resistance structures with scrap steel preheating room 3, and
And dust cover 9 has carried out smoke impervious to charging process, ensure that heat smoke will not emit outside.I.e. when the steel scrap of scrap steel preheating room 3
When material 6 preheats, the lifting placement of external charging chute 10 is laterally docked with dust excluding hood 9, opens the hermatic door 4 of scrap steel preheating room 3
A dedusting structure is also constituted, the hermatic door opened on external charging chute 10 can complete the charging to scrap steel preheating room 3
Work.Dust cover, external charging chute and scrap steel preheating room realize steel scrap charging process two to steel scrap stream in the program
Secondary bending baffling charging, it is a large amount of to consume steel scrap gravitional force, greatly reduce the impact to parts such as tooth harrow, preheating chamber slot bottoms
Load improves equipment life.
Fig. 6 applies example, and external charging chute 10 can also be used as stationary hopper, at this point it is possible to cancel external charging chute 10
One in the hermatic door being inside equipped with or the hermatic door 4 being arranged on scrap steel preheating room 3, to simplify structure.
Illustrate the action process of the present invention below in conjunction with the accompanying drawings：
Such as Fig. 3, electric arc furnaces is being smelted, and sliding sealing door 4 is closed, and prevents air from entering dust removing tube room 5, at this time electric arc
Kiln gas is directed in scrap steel preheating room 3, penetrates backgauge tooth harrow and steel scrap material 6 is taken away by dust removing tube room 5, steel scrap material 6
To preheating.When preheating after a certain period of time, driving backgauge tooth harrow is opened, and the steel scrap material 6 after preheating is along inclined scrap steel preheating
3 slot bottom of room slides to 1 center of electric arc furnace body.
Such as Fig. 4 or 5, after the steel scrap material 6 after preheating in scrap steel preheating room 3 enters electric arc furnace body 1, slidingtype
When hermatic door 4 is opened from right to left, the external charging hanging basket 11 stayed at this time etc. above 3 charge door of scrap steel preheating room is that steel scrap is pre-
Hot cell 3 carries out semi-enclosed charging, and steel scrap material 6 is bent in 3 dropping process by scrap steel preheating room 3 in scrap steel preheating room
The influence on the water conservancy diversion inclined-plane of generation generates mutual collision and friction between the baffling and material and material of different directions, finally by backgauge
Tooth harrow blocks, which reduces the impact force that backgauge tooth harrow is subject to.Period, if relatively small tilt angle (such as 40 degree of inclination angle) is useless
Landing is not smooth naturally for the steel scrap material 6 when backgauge tooth harrow is extracted out and fed that steel preheating chamber 3 may be brought, if or steel scrap material 6
, can be by the vibration of 7 steel scrap of vibrator when occurring steel scrap blanking card resistance on scrap steel preheating room 3, the scattered steel scrap that shakes vibrate defeated
It send, steel scrap material 6 is allowed to be able to normally enter in electric arc furnaces.And the cooperation of 7 vibration control of vibrator and backgauge tooth harrow aperture, can
To realize the controllable continuous charging of steel scrap material 6.
Or such as Fig. 6, Fig. 7, when being fed to scrap steel preheating room 3 by handling or fixed external charging chute 10,
Sliding sealing door 4 is opened, and backgauge tooth harrow 2 is closed, and the steel scrap that charging chute 10 is added has to pass through baffling twice and is just slipped to
Backgauge tooth harrow largely consumes steel scrap gravitational potential using the friction between steel scrap and slot bottom, steel scrap and dust cover 9, steel scrap and steel scrap
Can, this reduces the impact forces that backgauge tooth harrow 2 is subject to, and improve the reliability of backgauge tooth harrow 2.Meanwhile external charging is tiltedly
Slot 10, dust removing tube room 5, dust cover 9 constitute improvement seal to flue dust again so that flue gas is excessive directly than Fig. 1~shown in Fig. 4
Charging is connect to be greatly improved.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (8)
1. a kind of electric arc furnaces shock resistance baffling charging scrap steel preheating room-dedusting structure, including the scrap steel preheating room that is obliquely installed, institute
It states scrap steel preheating room lower end discharge port with electric arc furnaces to be connected, the upper end is equipped with dust removing tube room；The scrap steel preheating room and electric arc
The interface side of stove is equipped with finger class bracket, for barrier steel scrap or control blanking, it is characterised in that：The scrap steel preheating room has
At least one bending, the upper end surface offers charge door, and makes the vertical plane of charge door that can not be projected directly at hand
Refer on class bracket；The dust removing tube room is set on the arbitrarily non-baffling side of scrap steel preheating room upper periphery.
2. electric arc furnaces shock resistance baffling charging scrap steel preheating according to claim 1 room-dedusting structure, it is characterised in that：
It is the trench bottom of concave arc shape that the scrap steel preheating room, which has section,.
3. electric arc furnaces shock resistance baffling charging scrap steel preheating according to claim 1 room-dedusting structure, it is characterised in that：
The charge door is equipped with hermatic door, and the hermatic door is slidingtype or flip structure.
4. electric arc furnaces shock resistance baffling charging scrap steel preheating according to claim 1 room-dedusting structure, it is characterised in that：
The finger class bracket is backgauge tooth harrow or finger.
5. electric arc furnaces shock resistance baffling charging scrap steel preheating according to claim 1 room-dedusting structure, it is characterised in that：
The scrap steel preheating room on baffling side similar in electric arc furnaces or side wall be equipped with vibrator.
6. electric arc furnaces shock resistance baffling charging scrap steel preheating according to claim 1 room-dedusting structure, it is characterised in that：
The scrap steel preheating room is mounted on elastic support structure.
7. electric arc furnaces shock resistance baffling charging scrap steel preheating according to claim 6 room-dedusting structure, it is characterised in that：
The elastic support structure is one or more in multilayer cantilever leaf spring, multilayer freely-supported leaf spring, butterfly spring, helical spring or connecting rod
Combination.
8. electric arc furnaces shock resistance baffling charging scrap steel preheating according to claim 1 room-dedusting structure, it is characterised in that：
It is additionally provided with above the charge door and the matched dust cover of external charging chute, dust cover, external charging chute and steel scrap is pre-
Hot cell constitutes the secondary heteropleural bending of steel scrap baffling charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177906.XA CN105627733B (en) | 2016-02-29 | 2016-03-25 | A kind of electric arc furnaces shock resistance baffling charging scrap steel preheating room-dedusting structure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111995 | 2016-02-29 | ||
| CN2016101119958 | 2016-02-29 | ||
| CN201610177906.XA CN105627733B (en) | 2016-02-29 | 2016-03-25 | A kind of electric arc furnaces shock resistance baffling charging scrap steel preheating room-dedusting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105627733A CN105627733A (en) | 2016-06-01 |
| CN105627733B true CN105627733B (en) | 2018-08-14 |
Family
ID=56042894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610177906.XA Active CN105627733B (en) | 2016-02-29 | 2016-03-25 | A kind of electric arc furnaces shock resistance baffling charging scrap steel preheating room-dedusting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105627733B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953592B (en) * | 2016-06-23 | 2018-06-05 | 中冶赛迪工程技术股份有限公司 | A kind of offline heat smoke preheating device of material and its pre-heating mean |
| CN106979693B (en) * | 2017-03-07 | 2018-11-20 | 宁波钢铁有限公司 | Automatic discharge sealing device for LPD type preheater feed back elephant trunk |
| CN112484499A (en) * | 2020-11-27 | 2021-03-12 | 攀枝花钢城集团瑞钢工业有限公司 | Stop device of charging car of electric arc furnace |
| CN112708724B (en) * | 2020-12-01 | 2022-03-04 | 江苏省镔鑫钢铁集团有限公司 | Steelmaking equipment and method for steelmaking by using scrap steel |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001107128A (en) * | 1999-10-06 | 2001-04-17 | Nkk Corp | Method and equipment for melting cold iron source |
| CN2405174Y (en) * | 2000-01-07 | 2000-11-08 | 中国船舶重工集团公司第七研究院第七○三研究所 | Equipment for preheating waste steel using flue gas from vertical kiln-electric furnace combination |
| CN1676232A (en) * | 2005-05-26 | 2005-10-05 | 罗嘉洵 | Harmless refuse treating method and apparatus |
| CN202099316U (en) * | 2011-04-25 | 2012-01-04 | 中冶赛迪工程技术股份有限公司 | Quick charging device for charging steel scrap into electric furnace |
| CN203128612U (en) * | 2013-03-27 | 2013-08-14 | 中冶赛迪工程技术股份有限公司 | Conveying device with automatic steel scrap uniformly distributing device |
| CN203231651U (en) * | 2013-04-16 | 2013-10-09 | 中冶赛迪工程技术股份有限公司 | Step disturbance channel waste steel preheating device for electric-arc furnace |
| CN105202907B (en) * | 2015-10-30 | 2017-09-29 | 中冶赛迪工程技术股份有限公司 | Scrap steel preheating type electric arc furnaces and the method for improving side wall charging electric arc stove heat cold-zone |
| CN205482314U (en) * | 2016-02-29 | 2016-08-17 | 中冶赛迪工程技术股份有限公司 | Electric arc furnace reinforced steel scrap preheating chamber of baffling - dust removal structure of shocking resistance |
-
2016
- 2016-03-25 CN CN201610177906.XA patent/CN105627733B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105627733A (en) | 2016-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105627733B (en) | A kind of electric arc furnaces shock resistance baffling charging scrap steel preheating room-dedusting structure | |
| CN105202907B (en) | Scrap steel preheating type electric arc furnaces and the method for improving side wall charging electric arc stove heat cold-zone | |
| CN101776395A (en) | Electric furnace charging and preheating device | |
| CN205482314U (en) | Electric arc furnace reinforced steel scrap preheating chamber of baffling - dust removal structure of shocking resistance | |
| CN110607407A (en) | Energy-saving and yield-increasing method for preheating agglomerated materials by hot flue gas of blast furnace main channel | |
| CN201662331U (en) | Electric furnace charging and preheating device | |
| CN103196287A (en) | Box-type network chain driven charcoal material drying machine | |
| CN101979944B (en) | Volatile metal roasting and recycling device | |
| CN203428574U (en) | Coke sieving hopper device | |
| CN206803762U (en) | A kind of charging system | |
| CN206257980U (en) | A kind of gas melting furnace flue afterheat utilizing system | |
| CN205066413U (en) | Steel scrap preheats type electric arc furnace | |
| CN104129600A (en) | Circulating steel ball mechanical conveying device | |
| CN101280358B (en) | Reducing smelting furnace for regenerating metals | |
| CN207929268U (en) | A kind of dustless jaw crusher | |
| CN105910447B (en) | A kind of metallurgical red slag Exposure degree utilizes system | |
| CN203068990U (en) | Environment-friendly smoke absorbing cover of electric induction furnace | |
| CN101408374A (en) | Grate plate device of cooling machine | |
| CN112299041A (en) | Vertical shaft bin for preheating and processing scrap steel | |
| CN206428304U (en) | A kind of improved P.S converters copper device on the rocks | |
| CN102864264B (en) | Method and device for preventing metalized pellets from bonding | |
| CN105066692B (en) | Smoke evacuation and feeding device of induction heating furnace | |
| CN218262674U (en) | Zinc-containing dust and mud shaft furnace treatment device | |
| CN204848979U (en) | Copper smelting furnace | |
| CN201293547Y (en) | Grating plate device for cooling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |