CN103952509A - Electric furnace charging flue and furnace body sealing device as well as electric furnace system - Google Patents
Electric furnace charging flue and furnace body sealing device as well as electric furnace system Download PDFInfo
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- CN103952509A CN103952509A CN201410196565.1A CN201410196565A CN103952509A CN 103952509 A CN103952509 A CN 103952509A CN 201410196565 A CN201410196565 A CN 201410196565A CN 103952509 A CN103952509 A CN 103952509A
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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
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Abstract
The invention discloses an electric furnace charging flue and a furnace body sealing device as well as an electric furnace system. The electric furnace charging flue comprises a C-shaped movable sealing plate, a C-shaped fixed sealing plate and a driving device, wherein the C-shaped movable sealing plate is sleeved on a dust collection cover; the C-shaped fixed sealing plate is sleeved on a charging groove; the C-shaped movable sealing plate and the C-shaped fixed sealing plate are used for forming a sealing ring; the end surfaces of the C-shaped movable sealing plate and the C-shaped fixed sealing plate are in clearance fit with the end surface of a lateral charging opening of an electric furnace; the driving device is used for driving the C-shaped movable sealing plate to regulate a gap between the end surface of the C-shaped movable sealing plate and the end surface of the lateral charging opening of the electric furnace. According to the electric furnace charging flue, the furnace body sealing device and the electric furnace system, disclosed by the invention, the gap between the end surface of the C-shaped movable sealing plate and the end surface of the lateral charging opening of the electric furnace can be regulated according to the needs; moreover, compared with a conventional sealing device, the air leakage rate of the electric furnace can be reduced to 1/3-1/5 of the original air leakage rate, the dust removal efficiency can be improved, and the capacity of a dust exhausting fan can be reduced; compared with the conventional sealing device, the furnace body sealing device is more energy-saving and environment-friendly, and the production environment can be greatly improved; moreover, the dust collection cover, the C-shaped movable sealing plate and the driving device are integrally connected with one another and can be integrally disassembled and assembled, thus facilitating the system maintenance.
Description
Technical field
The present invention relates to a kind of Electric furnace steel making equipment, particularly the tightness system of a kind of electric furnace charging flue and body of heater.
Background technology
Energy-conservation in Electric furnace steel making, consumption reduction, environmental protection are one of core technologies of global Electric Furnace Steelmaking development always, and its Typical Representative is as the reinforced flue of level of CONSTEEL etc., and this technology has adopted sidewall of the furnace body feeding technique, can save a large amount of electric energy.But sidewall of the furnace body feeding technique need to be offered a macropore at sidewall of the furnace body, and how seal and opening becomes a new huge technical barrier.Because body of heater will fascinate, bell will turn round, for guaranteeing not interfering geometrically, the general and perforate maintenance 250~350mm spacing of the sealing plate of sidewall of the furnace body perforate in prior art, this causes electric furnace and charging system to leak out seriously.In Practical Project, owing to leaking out, the efficiency of dust-removal system is obviously reduced, investigation shows to have improved because leaking out the power loss per ton steel 10~15kwh/t (be equivalent to steel per ton and consume electricity 10~15 degree more) of dedusting fan, approximately high by 30~50% than common electric furnace; In addition, the existence in this gap, also reduce scrap steel preheating in Liao Han road effect, affect dust removing effects and Working environment.
Summary of the invention
In view of this, the object of this invention is to provide a kind of electric furnace charging flue and furnace sealing device, to reduce the spacing of sealing plate and perforate, improve the sealing effectiveness of electric furnace charging flue and body of heater, thereby raising efficiency of dust collection, reduces dedusting fan power, energy-conservation and improve production environment.
Electric furnace charging flue of the present invention and furnace sealing device, comprise the C shape movable sealing plate being enclosed within on dust excluding hood and be enclosed within the C shape fixing seal plate on intake chute, described C shape movable sealing plate and C shape fixing seal plate form wear ring, the outside surface running fit of the inner ring surface of described wear ring and the electric furnace charging flue that formed by dust excluding hood and intake chute, the end face of described C shape movable sealing plate and C shape fixing seal plate coordinates with the end clearance of electric furnace side charging mouth; Also comprise and drive C shape movable sealing plate to regulate the drive unit in gap between C shape movable sealing plate end face and electric furnace side charging mouth end face.
Further, described drive unit comprises parallelogram lindage, described parallelogram lindage comprises the bracing frame that is fixedly installed, be hinged on two connecting rods on bracing frame and with the cantilever of two rod hinge connections; Described drive unit also comprises the driving cylinder that drives cantilever, and the cylinder body of described driving cylinder and piston rod are hinged on respectively on cantilever and bracing frame, and described C shape movable sealing plate is fixedly connected on cantilever.
Further, described drive unit comprises bracing frame, cantilever and the driving cylinder being fixedly installed, on support frame as described above, be provided with the top tumbler and the bottom tumbler that pinch cantilever, the cylinder body of described driving cylinder and piston rod are hinged on respectively on cantilever and bracing frame, and described C shape movable sealing plate is fixedly connected on cantilever.
Further, at connecting rod when naturally drooping state, gap between the end face of described C shape movable sealing plate and the end face of electric furnace side charging mouth is 0~100mm, gap between the end face of described C shape fixing seal plate and the end face of electric furnace side charging mouth is 50~150mm, and the gap between the inner ring surface of described wear ring and the outside surface of electric furnace charging flue is 50~150mm.
Further, also comprise cantilever liner, described cantilever liner is to be fixed on the orienting lug coordinating with cantilever side slip on bracing frame.
Further, described electric furnace charging flue and furnace sealing device also comprise flexible drawing mechanism, described flexible drawing mechanism comprises the fixed pulley that is arranged on cantilever and around the cable wire on fixed pulley, one end of described cable wire is fixed on cantilever, the other end is fixed on C shape movable sealing plate bottom.
The present invention has the electric furnace system of electric furnace charging flue and furnace sealing device: comprise electric furnace, intake chute and dust excluding hood, described electric furnace side charging mouth is arranged on electric furnace body sidewall and furnace lid, the front end of described intake chute stretches into electric furnace body, and support frame as described above is fixed on dust excluding hood.
Beneficial effect of the present invention:
1, electric furnace charging flue of the present invention and furnace sealing device and electric furnace system, between its C shape movable sealing plate end face and electric furnace side charging mouth end face, gap can regulate as required, gap length generally can be controlled in 0~100mm, gap with respect to 250~350mm between traditional electrical furnace body side-wall hole and sealing plate, sealing-gap dwindles greatly, can make electric furnace inleakage be reduced to original 1/3~1/5, and improve efficiency of dust collection, reduce dedusting fan capacity, with respect to conventional seals device, its more energy-conservation and environmental protection, can be very large improve production environment.
2, electric furnace charging flue of the present invention and furnace sealing device and electric furnace system, sealing device structure is simple and reliable, is convenient to safeguard, and is suitable for severe Working environment.
3, electric furnace charging flue of the present invention and furnace sealing device and electric furnace system, its dust excluding hood, C shape movable sealing plate and drive unit thereof overlap integrated connection, can integral disassembly, assembly, system maintenance easy.
Accompanying drawing explanation
Fig. 1 is electric furnace charging flue and the structural representation of furnace sealing device when electric furnace is normal;
Fig. 2 is the transverse sectional view of electric furnace charging flue and furnace sealing device;
Fig. 3 is electric furnace charging flue and the structural representation of furnace sealing device when electric furnace is uncapped;
Fig. 4 is electric furnace charging flue and the structural representation of furnace sealing device after removing C shape movable sealing plate;
Fig. 5 is a kind of structural representation under electric furnace charging flue and furnace sealing device You flexible drawing mechanism state;
Fig. 6 is the another kind of structural representation under electric furnace charging flue and furnace sealing device You flexible drawing mechanism state.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in the figure, the present embodiment electric furnace charging flue and furnace sealing device, comprise the C shape movable sealing plate 2 being enclosed within on dust excluding hood 1 and be enclosed within the C shape fixing seal plate 4 on intake chute 3, described C shape movable sealing plate 2 and C shape fixing seal plate 4 form wear ring, the outside surface running fit of the inner ring surface of described wear ring and the electric furnace charging flue that formed by dust excluding hood 1 and intake chute 3, the end face of described C shape movable sealing plate 2 and C shape fixing seal plate 4 coordinates with the end clearance of electric furnace side charging mouth; The present embodiment electric furnace charging flue and furnace sealing device also comprise that driving C shape movable sealing plate 2 is to regulate the drive units in gap between C shape movable sealing plate 2 end faces and electric furnace side charging mouth end face.
The present embodiment electric furnace charging flue and furnace sealing device, its adopt with electric furnace charging flue and electric furnace side charging mouth between adopt little clearance seal to coordinate, can guarantee that body of heater 5 can not interfere when it horizontally rotates medullary ray 0-01 rotation.And the present embodiment electric furnace charging flue and furnace sealing device, under furnace lid 6 lifting states, by drive unit, drive C shape movable sealing plate 2 away from electric furnace side charging mouth end face 9 (now the gap X2 between the end face of C shape movable sealing plate 2 and the end face of electric furnace side charging mouth can reach 250~350mm), can guarantee that bell 4 and electrode do not interfere (operation of uncapping is the underaction that electric furnace is produced, the function that still must have) around its vertical rotation center O-O2 revolution.
The present embodiment electric furnace charging flue and furnace sealing device are under the normal job requirement that can meet electric furnace, can regulate as required the gap between C shape movable sealing plate end face and electric furnace side charging mouth end face, and the size in this gap generally can be controlled in 0~100mm, gap with respect to 250~350mm between traditional electrical furnace body side-wall hole and sealing plate, sealing-gap dwindles greatly, can make electric furnace inleakage be reduced to original 1/3~1/5, and improve efficiency of dust collection, reduce dedusting fan capacity, with respect to conventional seals device, its more energy-conservation and environmental protection, can be very large improve production environment.
As the improvement to the present embodiment, described drive unit comprises parallelogram lindage, and described parallelogram lindage comprises the bracing frame 8 that is fixedly installed, is hinged on two connecting rods 9 and the cantilever 10 hinged with two connecting rods 9 on bracing frame 8; Described drive unit also comprises the driving cylinder 7 that drives cantilever 10, and the cylinder body of described driving cylinder 7 and piston rod are hinged on respectively on cantilever 10 and bracing frame 8, and described C shape movable sealing plate 2 is fixedly connected on cantilever 10.This driving device structure is simple, and reliability is high, is convenient to safeguard.
It is worthy of note, drive unit in the present embodiment also can be other structure, as shown in Figure 6, described drive unit comprises bracing frame 8, cantilever 10 and the driving cylinder 7 being fixedly installed, on support frame as described above 8, be provided with the top tumbler 14 and the bottom tumbler 15 that pinch cantilever 10, the cylinder body of described driving cylinder 7 and piston rod are hinged on respectively on cantilever 10 and bracing frame 8, and described C shape movable sealing plate 2 is fixedly connected on cantilever 10, by guide wheel, drive cantilever transverse shifting, can realize object of the present invention equally.
As the improvement to the present embodiment, at connecting rod when naturally drooping state, gap X1 between the end face of described C shape movable sealing plate 2 and the end face of electric furnace side charging mouth is 50mm (this gap also can be 0~100mm scope or other value as required in concrete enforcement certainly), gap XX between the end face of described C shape fixing seal plate 4 and the end face of electric furnace side charging mouth is 50mm (this gap also can be other value within the scope of 50~150mm or as required in concrete enforcement certainly), gap between the outside surface of the inner ring surface of described wear ring and electric furnace charging flue is 50mm (this gap also can be other value within the scope of 50~150mm in concrete enforcement certainly).Gap in this improvement between C shape movable sealing plate 2 and C shape fixing seal plate 4 and electric furnace side charging mouth is with respect to the gap of 250~350mm between conventional seals device and charging opening, gap value dwindles greatly, electric furnace inleakage still less, can reduce dedusting fan capacity, improve efficiency of dust collection, improve Working environment.
As the improvement to the present embodiment, this electric furnace charging flue and furnace sealing device also comprise cantilever liner, described cantilever liner is to be fixed on bracing frame 8 orienting lug 11 that coordinates from cantilever 10 side slip (certainly in different embodiment, orienting lug 11 is available guide deflection sheave or other device replacement also), by orienting lug 11, limit the motion track of cantilever 10, the swing of C shape movable sealing plate 2 can be avoided, the sealing-gap of C shape movable sealing plate 2 and electric furnace charging flue and charging opening can better be controlled.
As the improvement to the present embodiment, this electric furnace charging flue and furnace sealing device also comprise flexible drawing mechanism, described flexible drawing mechanism comprises the fixed pulley 12 that is arranged on cantilever 10 and around the cable wire 13 on fixed pulley 12, the bottom that one end of described cable wire 13 is fixed on cantilever 10, the other end is fixed on C shape movable sealing plate 2; Due to the 2 unsettled settings of C shape movable sealing plate; the easy slagging scorification generation jam power of C shape movable sealing plate 2 in use procedure; increasing flexible drawing mechanism can make C shape movable sealing plate 2 upper and lowers bear tractive force simultaneously; can improve the stressing conditions of C shape movable sealing plate 2; and cable wire has certain elasticity; can, to 2 buffer protection function of C shape movable sealing plate, be conducive to extend the work-ing life of C shape movable sealing plate 2.
The present embodiment has the electric furnace system of aforementioned electric furnace charging flue and furnace sealing device, comprise electric furnace, intake chute 3 and dust excluding hood 1, described electric furnace side charging mouth is arranged on the sidewall and furnace lid 6 of electric furnace body 5, the front end of described intake chute 3 stretches into electric furnace body 5, and support frame as described above 8 is fixed on dust excluding hood 1; In the present embodiment, the gap X0 between the end of dust excluding hood 1 and electric furnace side charging mouth is 250~350mm, can guarantee that bell 4 and electrode do not interfere around its vertical rotation center O-O2 revolution; In the present embodiment, dust excluding hood 1, C shape movable sealing plate 2 and drive unit thereof overlap integrated connection, can integral disassembly, assembly, and system maintenance easy.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (7)
1. electric furnace charging flue and furnace sealing device, it is characterized in that: comprise the C shape movable sealing plate being enclosed within on dust excluding hood and be enclosed within the C shape fixing seal plate on intake chute, described C shape movable sealing plate and C shape fixing seal plate form wear ring, the outside surface running fit of the inner ring surface of described wear ring and the electric furnace charging flue that formed by dust excluding hood and intake chute, the end face of described C shape movable sealing plate and C shape fixing seal plate coordinates with the end clearance of electric furnace side charging mouth; Also comprise and drive C shape movable sealing plate to regulate the drive unit in gap between C shape movable sealing plate end face and electric furnace side charging mouth end face.
2. electric furnace charging flue according to claim 1 and furnace sealing device, it is characterized in that: described drive unit comprises parallelogram lindage, described parallelogram lindage comprises the bracing frame that is fixedly installed, be hinged on two connecting rods on bracing frame and with the cantilever of two rod hinge connections; Described drive unit also comprises the driving cylinder that drives cantilever, and the cylinder body of described driving cylinder and piston rod are hinged on respectively on cantilever and bracing frame, and described C shape movable sealing plate is fixedly connected on cantilever.
3. electric furnace charging flue according to claim 1 and furnace sealing device, it is characterized in that: described drive unit comprises bracing frame, cantilever and the driving cylinder being fixedly installed, on support frame as described above, be provided with the top tumbler and the bottom tumbler that pinch cantilever, the cylinder body of described driving cylinder and piston rod are hinged on respectively on cantilever and bracing frame, and described C shape movable sealing plate is fixedly connected on cantilever.
4. electric furnace charging flue according to claim 2 and furnace sealing device, it is characterized in that: at connecting rod when naturally drooping state, gap between the end face of described C shape movable sealing plate and the end face of electric furnace side charging mouth is 0~100mm, gap between the end face of described C shape fixing seal plate and the end face of electric furnace side charging mouth is 50~150mm, and the gap between the inner ring surface of described wear ring and the outside surface of electric furnace charging flue is 50~150mm.
5. according to the electric furnace charging flue described in claim 2 or 3 and furnace sealing device, it is characterized in that: also comprise cantilever liner, described cantilever liner is to be fixed on the orienting lug coordinating with cantilever side slip on bracing frame.
6. electric furnace charging flue according to claim 1 and furnace sealing device, it is characterized in that: also comprise flexible drawing mechanism, described flexible drawing mechanism comprises the fixed pulley that is arranged on cantilever and around the cable wire on fixed pulley, one end of described cable wire is fixed on cantilever, the other end is fixed on C shape movable sealing plate bottom.
7. the electric furnace system with arbitrary described electric furnace charging flue and furnace sealing device in claim 1-6, it is characterized in that: comprise electric furnace, intake chute and dust excluding hood, described electric furnace side charging mouth is arranged on electric furnace body sidewall and furnace lid, the front end of described intake chute stretches into electric furnace body, and support frame as described above is fixed on dust excluding hood.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114260278A (en) * | 2021-12-25 | 2022-04-01 | 芜湖华洁环保设备有限公司 | LF stove dust excluding hood encloses fender sealing device |
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CN203855604U (en) * | 2014-05-09 | 2014-10-01 | 中冶赛迪工程技术股份有限公司 | Electric furnace charging flue and furnace body sealing device as well as electric furnace system |
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Patent Citations (7)
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KR200444221Y1 (en) * | 2007-12-03 | 2009-04-17 | 현대제철 주식회사 | Apparatus for sealling sub-material utilized electricfurnace |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114260278A (en) * | 2021-12-25 | 2022-04-01 | 芜湖华洁环保设备有限公司 | LF stove dust excluding hood encloses fender sealing device |
CN114260278B (en) * | 2021-12-25 | 2023-12-26 | 芜湖华洁环保设备有限公司 | LF stove dust excluding hood encloses fender sealing device |
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