CN110425893B - Connection structure of electric furnace feeding duct and electric furnace system - Google Patents
Connection structure of electric furnace feeding duct and electric furnace system Download PDFInfo
- Publication number
- CN110425893B CN110425893B CN201910758758.4A CN201910758758A CN110425893B CN 110425893 B CN110425893 B CN 110425893B CN 201910758758 A CN201910758758 A CN 201910758758A CN 110425893 B CN110425893 B CN 110425893B
- Authority
- CN
- China
- Prior art keywords
- electric furnace
- duct
- turning plate
- adjusting
- swing
- 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
- 239000000428 dust Substances 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 239000000779 smoke Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 19
- 239000003517 fume Substances 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 27
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 14
- 239000003546 flue gas Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 11
- 238000002485 combustion reaction Methods 0.000 abstract description 10
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/02—Supplying steam, vapour, gases, or liquids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a connecting structure of an electric furnace charging duct and an electric furnace system, wherein the electric furnace charging duct comprises a charging tank and a smoke hood, the electric furnace charging duct is connected with a dust removing interface of the electric furnace, an air adjusting port is arranged at the joint of the smoke hood and the dust removing interface, and an adjusting mechanism for adjusting the opening of the air adjusting port is arranged on the smoke hood. According to the invention, the opening degree of the air regulating port can be regulated by the air regulating mechanism, and the mixing amount of cold air is controlled or the air regulating mechanism is completely sealed; thereby adjusting the opening of the connection waiting port of the charging duct formed by the smoke hood and the charging tank and the electric furnace. In this way, the air quantity mixed into the duct can be controlled to fully burn the carbon monoxide in the flue gas of the electric furnace; because the mixing point is at the forefront end of the duct, carbon monoxide has sufficient combustion time, and the preheated duct is longer, the waste steel preheating effect in the feeding duct is improved.
Description
Technical Field
The invention belongs to the technical field of electric furnace steelmaking, and particularly relates to a connecting structure of an electric furnace charging duct and an electric furnace system.
Background
Chinese patent 2014101965651 discloses that in the concrete implementation process, when the C-shaped movable sealing plate is retracted, a large amount of flue gas will rise in the upper gap due to the nature of the rising hot flue gas, which affects the production environment. In addition, the dust removal throat of the system cannot be adjusted, and enough air cannot be inhaled to burn carbon monoxide in the flue gas when the carbon monoxide in the flue gas is required to be combusted by the mixed air, so that the carbon monoxide combustion point is moved backwards, and the preheating effect of the heat energy of combustion on the scrap steel is reduced.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a connection structure of an electric furnace charging duct and an electric furnace, providing controllable air-mixing combustion equipment conditions.
To achieve the above object and other related objects, the present invention provides the following technical solutions:
the utility model provides a connection structure of electric stove reinforced duct and electric stove, wherein, electric stove reinforced duct includes loading tank and petticoat pipe, electric stove reinforced duct with the dust removal interface connection of electric stove, the junction with the dust removal interface is provided with the accent wind gap on the petticoat pipe, be provided with the adjustment mechanism who is used for adjusting the accent wind gap aperture on the petticoat pipe.
With the adoption of the structure, the adjusting mechanism of the air adjusting port can adjust the opening of the air adjusting port, control the mixing amount of cold air or completely seal the air adjusting port; thereby adjusting the opening of the connection waiting port of the charging duct formed by the smoke hood and the charging tank and the electric furnace. In this way, the air quantity mixed into the duct can be controlled to fully burn the carbon monoxide in the flue gas of the electric furnace; because the mixing point is at the forefront end of the duct, carbon monoxide has sufficient combustion time, and the preheated duct is longer, the waste steel preheating effect in the feeding duct is improved.
The feeding duct can be adjusted on line, and when the waiting opening is opened, the resistance of the waiting opening duct is reduced and air is mixed, so that an additional fan is not needed for blowing and mixing air.
Optionally, the adjusting mechanism is a swing adjusting flap provided on the hood.
Optionally, the swing is adjusted and is turned over the board rear end with the petticoat pipe rotates to be connected, and the front end orientation the dust removal interface, just swing is adjusted and is turned over board front end and dust removal interface overlap joint or have the clearance.
Optionally, the air adjusting port and the swing adjusting turning plate are arranged at the top of the front end of the smoke hood, and in the overturning adjusting process, the left side and the right side of the swing adjusting turning plate are dynamically sealed with the smoke hood.
Optionally, sealing plates are oppositely arranged on the left side and the right side of the air adjusting port on the fume hood, and the swing adjusting turning plate is in clearance fit with the sealing plates.
Optionally, the connection structure of the electric furnace charging duct and the electric furnace further comprises a driving mechanism which is connected with the swing adjusting turning plate and used for driving the swing adjusting turning plate to perform pitching motion.
Optionally, the actuating mechanism sets up on the cigarette cover, actuating mechanism's output is rotated with the swing and is connected with the board that adjusts, the rear end of swing is adjusted the board and is rotated with the petticoat pipe and be connected.
Optionally, be fixed with connecting seat and ear seat on the swing regulation board, be provided with first supporting seat and second supporting seat on the petticoat pipe, the connecting seat rotates with first supporting seat to be connected, the ear seat rotates with actuating mechanism front end to be connected, actuating mechanism rear end rotates with the second supporting seat to be connected.
Optionally, the air-conditioning opening is at least partially higher than the dust-removing interface.
Optionally, a spoiler is arranged on one side of the swing adjusting turning plate, which faces the feeding tank.
Optionally, an auxiliary sealing plate is arranged at the front end and/or the rear end of the swing adjusting turning plate.
The invention also provides an electric furnace system, which comprises an electric furnace, a feeding tank and a smoke hood, wherein the feeding tank and the smoke hood form an electric furnace feeding duct, and the electric furnace feeding duct and the electric furnace adopt the connecting structure.
The beneficial effects of the invention are as follows: the adjusting mechanism of the air adjusting port can adjust the opening of the air adjusting port, control the mixing amount of cold air or completely seal; thereby adjusting the opening of the connection waiting port of the charging duct formed by the smoke hood and the charging tank and the electric furnace. In this way, the air quantity mixed into the duct can be controlled to fully burn the carbon monoxide in the flue gas of the electric furnace; because the mixing point is at the forefront end of the duct, carbon monoxide has sufficient combustion time, and the preheated duct is longer, the waste steel preheating effect in the feeding duct is improved.
The feeding duct can be adjusted on line, and when the waiting opening is opened, the resistance of the waiting opening duct is reduced and air is mixed, so that an additional fan is not needed for blowing and mixing air.
Drawings
FIG. 1 is a schematic diagram of the structure of an electric furnace system in one embodiment when the furnace system is used for closed charging;
FIG. 2 is a schematic cross-sectional view of a feed bypass in one embodiment;
FIG. 3 is an enlarged partial schematic view of the connection structure of the feed duct and the electric furnace in one embodiment.
FIG. 4 is a schematic diagram of the structure of the electric furnace system during a mixing operation in one embodiment;
Fig. 5 is a schematic view of the structure of the electric furnace system in a maintenance state in one embodiment.
Description of the part reference numerals
1-An electric furnace; 2-a dust removal interface; 3-sealing plate; 4-swinging the adjusting turning plate; 5-connecting seats; 6-ear seats; 7-a driving mechanism; 8-fume hood; 9-a feeding tank; 10-spoiler; 11-an auxiliary sealing plate; 12-a first support base; 13-a second support seat.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
It should be understood that the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like are used in this specification for descriptive purposes only and not for purposes of limitation, and that the invention may be practiced without materially departing from the novel teachings and without departing from the scope of the invention.
This example provides a connection structure of electric stove reinforced duct and electric stove, as shown in fig. 1 to 3, electric stove reinforced duct includes charging tank 9 and petticoat pipe 8 (or called dust excluding hood), electric stove reinforced duct with electric stove 1's dust removal interface 2 is connected, and charging tank 9 front end stretches into the furnace body, has the clearance between petticoat pipe 8 front end and the dust removal interface 2, and the junction with dust removal interface 2 on the petticoat pipe 8, the petticoat pipe 8 front end is provided with the accent wind gap promptly, and the position that corresponds to the accent wind gap on the petticoat pipe 8 is provided with the adjustment mechanism who is used for adjusting the accent wind gap aperture, and this adjustment mechanism can realize transferring wind gap complete closure, part and open to the state of complete opening.
The opening degree of the air adjusting port can be adjusted by the air adjusting mechanism of the air adjusting port, so that the air quantity mixed into the duct can be controlled to fully burn carbon monoxide in the flue gas of the electric furnace; because the mixing point is at the forefront end of the duct, carbon monoxide has sufficient combustion time, and the preheated duct is longer, the waste steel preheating effect in the feeding duct is improved.
In this case, adjustment mechanism is for setting up the swing regulation and turning over board 4 on petticoat pipe 8, and wherein transfer wind gap and swing regulation turn over board 4 setting are at the top of petticoat pipe 8 front end, and swing regulation turns over board 4 rear end and is connected with the rotation of petticoat pipe 8, and the front end orientation dust removal interface 2, and swing regulation turns over board 4 front end and dust removal interface 2 overlap joint or have the clearance.
When the front end of the swing adjusting turning plate 4 is overlapped with the dust removing interface 2, the overlapped part is overlapped, so that the sealing and dust removing effects are enhanced; when the gap exists, the electric furnace 1 is in a micro negative pressure state, and the gap is in a suction state, so that the electric furnace 1 does not emit smoke.
In the overturning and adjusting process, the left side and the right side of the swinging and adjusting turning plate 4 are dynamically sealed with the smoke hood 8, so that the reliability of opening adjustment is ensured, and lateral air inlet is avoided. Specifically, the left and right sides that lie in the transfer wind gap on the petticoat pipe 8 are provided with closing plate 3 relatively, swing regulation turns over board 4 and closing plate 3 clearance fit, and the size of closing plate 3 corresponds with the swing scope of swing regulation turns over board 4, and this closing plate 3 and the left and right lateral wall welding of petticoat pipe 8.
In order to ensure the sealing effect, the front end or the rear end of the swing adjusting turning plate 4 is welded with an auxiliary sealing plate 11, or the front end and the rear end are welded with the auxiliary sealing plate 11; because the installation of the swing adjusting turning plate 4 and the fume hood 8 possibly has assembly errors, the auxiliary sealing plate 11 at the front end can ensure the lap joint or the gap range of the swing adjusting turning plate 4 and the electric furnace dust removing interface 2; when the swing adjusting turning plate 4 is turned and adjusted to move relative to the fume hood 8, the auxiliary sealing plate 11 at the rear end ensures a sealing gap between the swing adjusting turning plate 4 and the fume hood 8.
In one embodiment, the air adjusting port is at least partially higher than the dust removing interface 2, and the part of the space above the dust removing interface 2 can be used for sucking outside air above the dust removing interface 2, so that the lateral air intake of the flue is facilitated.
In one embodiment, the side of the swing adjustment flap 4 facing the feed tank 9 (i.e. the side of the swing adjustment flap 4 facing inwards) is provided with a spoiler 10 guiding the flow direction of the intake air.
The connecting structure of the electric furnace charging duct and the electric furnace further comprises a driving mechanism 7 connected with the swing adjusting turning plate 4, and the driving mechanism 7 is used for driving the swing adjusting turning plate 4 to perform pitching motion so as to adjust the opening of the air adjusting opening. Wherein, the driving mechanism 7 can adopt a hydraulic cylinder, a winch or a chain wheel and chain structure driven by a motor, etc.
In order to facilitate real-time feedback of the position, a swing angle detection sensor, a position sensor and the like can be arranged on the swing adjusting turning plate 4.
In the embodiment, the hydraulic oil cylinder is used for explanation, the driving mechanism 7 is arranged on the fume hood 8, the output end of the driving mechanism 7 is rotationally connected with the swing adjusting turning plate 4, and the rear end of the swing adjusting turning plate 4 is rotationally connected with the fume hood 8, so that pitching driving is facilitated.
Specifically, the swing adjusting turning plate 4 is fixedly connected with the ear seat 6 and the connecting seat 5, wherein one end of the connecting seat 5 is fixed with the swing adjusting turning plate 4, the other end of the connecting seat is rotationally connected with the fume hood 8, and for convenient installation, the fume hood 8 is provided with a first supporting seat 12, and the first supporting seat 12 is rotationally connected with the connecting seat 5; one end of the ear seat 6 is fixed with the swing adjusting turning plate 4, the other end is rotationally connected with the front end (namely the output end) of the hydraulic oil cylinder, and a second supporting seat 13 is arranged on the smoke hood 8 for supporting and flexibly driving the hydraulic oil cylinder, and the rear end of the hydraulic oil cylinder is rotationally connected with the second supporting seat 13.
The invention also provides an electric furnace system, which comprises an electric furnace 1, a feeding tank 9 and a fume hood 8, wherein the feeding tank 9 and the fume hood 8 form an electric furnace feeding duct, the electric furnace feeding duct and the electric furnace adopt the connecting structure, the feeding tank 9 extends into the furnace body of the electric furnace 1, and the front end of the fume hood 8 is provided with a gap with the dust removal interface 2.
The electric furnace system has the following working states:
1) In the fully-closed charging and dedusting state, see fig. 1,2 and 3, the swing adjusting turning plate 4 and the fixed sealing plate 3 have relatively stable gaps to ensure mutual movement, the electric furnace 1 is in a micro-negative pressure state, and the gaps are in an air suction state to ensure that the electric furnace 1 does not emit smoke. The swing adjusting turning plate 4 can adjust the opening and the resistance of the air adjusting opening by up and down micro-motion, thereby controlling the production environment and the dust removing effect of the electric furnace 1.
2) In the sealed charging, dedusting and air mixing combustion state, as shown in fig. 4 and 2, the swing adjusting turning plate 4 and the fixed two side walls 3 have relatively stable gaps to ensure mutual movement, the electric furnace 1 is in a micro negative pressure state, the swing adjusting turning plate 4 is tilted upwards by a certain angle, the air adjusting opening formed by the swing adjusting turning plate 4 and the two sealing plates 3 is higher than the dedusting interface 2 of the electric furnace 1, at the moment, the part of the discharged space can be sucked into the outside air above the dedusting interface 2 and is mixed with the electric furnace flue gas through the spoiler 10, carbon monoxide in the electric furnace flue gas is combusted, and the opening of the swing adjusting turning plate 4 is controlled according to the components, the temperature and the like of the inlet flue gas and the rear part after combustion.
Structurally, the air mixing suction port is arranged above the interface of the electric furnace and the feeding and dedusting duct, so that the rising electric furnace smoke after the swing adjusting turning plate 4 is opened can be completely sucked, the air mixing function and the electric furnace dedusting function are combined into a whole, and the dual-function environment-friendly and energy-saving production is realized.
3) In the equipment maintenance state, the swing adjusting turning plate 4 is greatly opened (for example, the rotation angle is larger than 90 degrees), and the air adjusting opening is in a bent open state so as to maintain the equipment at the front end of the lower feeding groove 9, as shown in fig. 5.
The invention has the beneficial effects that:
The swing adjusting turning plate 4 is connected with the dust removing interface 2 of the electric furnace and can be lapped or kept at a small gap; the electric furnace interface is well sealed, and the dust removal effect and the production environment are improved.
The swing adjusting turning plate 4 can control the mixing amount of cold air or completely seal the electric furnace dust removing interface 2 through a gap. Meanwhile, the swing adjusting turning plate 4 can adjust the opening of a connecting waiting port of a feeding dust removing duct formed by the smoke hood 8 and the feeding tank 9 and the electric furnace. So that the air quantity mixed into the duct can be controlled to fully burn the carbon monoxide in the flue gas of the electric furnace; the carbon monoxide at the forefront end of the duct has sufficient burning time at the air mixing point, and the preheated duct is longer, so that the waste steel preheating effect in the feeding and dedusting duct is improved. In addition, the spoiler 10 of the swing adjusting turning plate 4 can improve heat exchange between the scrap steel and the flue gas and improve the heat exchange efficiency of the scrap steel.
Because the feeding duct can be adjusted on line, when the waiting mouth is opened greatly, the resistance of the waiting mouth duct is reduced and air is mixed, so that an additional fan is not needed for blowing and mixing air.
The swing adjusting turning plate can be opened to the limit position, so that an operation space is provided for maintenance of the interface of the electric furnace and the feeding duct, and equipment maintenance is facilitated.
The dynamic sealing of the connection of the electric furnace and the flue is improved, the controllable mixed air combustion equipment condition is provided, the utilization efficiency of chemical energy is improved, the energy is saved, the production environment is improved, and in addition, the equipment structure is simplified.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (6)
1. The utility model provides a connection structure of electric stove reinforced duct and electric stove, wherein, electric stove reinforced duct includes loading tank and petticoat pipe, electric stove reinforced duct with the dust removal interface connection of electric stove, its characterized in that: an air adjusting port is arranged at the joint of the smoke hood and the dust removing interface, and an adjusting mechanism for adjusting the opening of the air adjusting port is arranged on the smoke hood; the adjusting mechanism is a swing adjusting turning plate arranged on the smoke cover; the rear end of the swing adjusting turning plate is rotationally connected with the smoke hood, the front end of the swing adjusting turning plate faces the dust removing interface, and the front end of the swing adjusting turning plate is overlapped with the dust removing interface or has a gap; the air adjusting port and the swing adjusting turning plate are arranged at the top of the front end of the smoke hood, and the left side and the right side of the swing adjusting turning plate are dynamically sealed with the smoke hood in the overturning adjusting process; the left side and the right side of the air adjusting port on the fume hood are oppositely provided with sealing plates, and the swing adjusting turning plate is in clearance fit with the sealing plates; a spoiler is arranged on one side of the swing adjusting turning plate, which faces the feeding tank; the front end and/or the rear end of the swing adjusting turning plate are/is provided with an auxiliary sealing plate.
2. The connection structure of an electric furnace charging duct and an electric furnace according to claim 1, wherein: the connecting structure of the electric furnace charging duct and the electric furnace further comprises a driving mechanism which is connected with the swing adjusting turning plate and used for driving the swing adjusting turning plate to perform pitching motion.
3. The connection structure of the electric furnace charging duct and the electric furnace according to claim 2, wherein: the driving mechanism is arranged on the smoke cover, the output end of the driving mechanism is rotationally connected with the swing adjusting turning plate, and the rear end of the swing adjusting turning plate is rotationally connected with the smoke cover.
4. The connection structure of the electric furnace charging duct and the electric furnace according to claim 3, wherein: the swing adjusting turning plate is fixedly provided with a connecting seat and an ear seat, the smoke hood is provided with a first supporting seat and a second supporting seat, the connecting seat is rotationally connected with the first supporting seat, the ear seat is rotationally connected with the front end of the driving mechanism, and the rear end of the driving mechanism is rotationally connected with the second supporting seat.
5. The connection structure of an electric furnace charging duct and an electric furnace according to claim 1, wherein: the air adjusting port is at least partially higher than the dust removing interface.
6. The utility model provides an electric stove system, includes electric stove, loading tank and petticoat pipe form electric stove feeding duct, its characterized in that: the electric furnace charging duct and the electric furnace adopt the connecting structure of any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910758758.4A CN110425893B (en) | 2019-08-16 | 2019-08-16 | Connection structure of electric furnace feeding duct and electric furnace system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910758758.4A CN110425893B (en) | 2019-08-16 | 2019-08-16 | Connection structure of electric furnace feeding duct and electric furnace system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110425893A CN110425893A (en) | 2019-11-08 |
| CN110425893B true CN110425893B (en) | 2024-05-14 |
Family
ID=68416680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910758758.4A Active CN110425893B (en) | 2019-08-16 | 2019-08-16 | Connection structure of electric furnace feeding duct and electric furnace system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110425893B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151544A (en) * | 2019-12-25 | 2020-05-15 | 太原重工股份有限公司 | Coke oven dust removal sealing device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0843020A1 (en) * | 1996-11-13 | 1998-05-20 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Double hearth electric arc furnace for continuous melting |
| CN101644538A (en) * | 2009-06-12 | 2010-02-10 | 中冶赛迪工程技术股份有限公司 | Electric stove metal balk cargo vibration material delivering and airflow dynamic packing device |
| CN101776395A (en) * | 2010-02-01 | 2010-07-14 | 中冶赛迪工程技术股份有限公司 | Electric furnace charging and preheating device |
| CN101825396A (en) * | 2010-05-12 | 2010-09-08 | 中冶赛迪工程技术股份有限公司 | Device for preheating and conveying scrap steel |
| CN102003876A (en) * | 2010-11-16 | 2011-04-06 | 中冶赛迪工程技术股份有限公司 | Culvert raw material delivery and smoke dust recovery device and method for smelting container |
| CN103075881A (en) * | 2013-02-22 | 2013-05-01 | 中冶赛迪工程技术股份有限公司 | Continuous feeding device for electric arc furnace preheated by flue gases |
| CN105202907A (en) * | 2015-10-30 | 2015-12-30 | 中冶赛迪工程技术股份有限公司 | Steel scrap preheating type electric arc furnace and method of improving heating cold area of side wall charging electric arc furnace |
| CN105865193A (en) * | 2016-05-30 | 2016-08-17 | 中冶赛迪工程技术股份有限公司 | Sealed charging device and flue gas temperature control method of electric-arc furnace |
| CN210464061U (en) * | 2019-08-16 | 2020-05-05 | 中冶赛迪工程技术股份有限公司 | Connecting structure of electric furnace charging duct and electric furnace system |
-
2019
- 2019-08-16 CN CN201910758758.4A patent/CN110425893B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0843020A1 (en) * | 1996-11-13 | 1998-05-20 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Double hearth electric arc furnace for continuous melting |
| CN101644538A (en) * | 2009-06-12 | 2010-02-10 | 中冶赛迪工程技术股份有限公司 | Electric stove metal balk cargo vibration material delivering and airflow dynamic packing device |
| CN101776395A (en) * | 2010-02-01 | 2010-07-14 | 中冶赛迪工程技术股份有限公司 | Electric furnace charging and preheating device |
| CN101825396A (en) * | 2010-05-12 | 2010-09-08 | 中冶赛迪工程技术股份有限公司 | Device for preheating and conveying scrap steel |
| CN102003876A (en) * | 2010-11-16 | 2011-04-06 | 中冶赛迪工程技术股份有限公司 | Culvert raw material delivery and smoke dust recovery device and method for smelting container |
| CN103075881A (en) * | 2013-02-22 | 2013-05-01 | 中冶赛迪工程技术股份有限公司 | Continuous feeding device for electric arc furnace preheated by flue gases |
| CN105202907A (en) * | 2015-10-30 | 2015-12-30 | 中冶赛迪工程技术股份有限公司 | Steel scrap preheating type electric arc furnace and method of improving heating cold area of side wall charging electric arc furnace |
| CN105865193A (en) * | 2016-05-30 | 2016-08-17 | 中冶赛迪工程技术股份有限公司 | Sealed charging device and flue gas temperature control method of electric-arc furnace |
| CN210464061U (en) * | 2019-08-16 | 2020-05-05 | 中冶赛迪工程技术股份有限公司 | Connecting structure of electric furnace charging duct and electric furnace system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110425893A (en) | 2019-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017206595A1 (en) | Feeder device utilized in electric arc furnace, and flue gas and temperature control method | |
| CN110425893B (en) | Connection structure of electric furnace feeding duct and electric furnace system | |
| CN208871606U (en) | A kind of air quantity and the adjustable high-temperature corrosion in boiler of vertical angle prevent and treat adherent wind snout | |
| CN210464061U (en) | Connecting structure of electric furnace charging duct and electric furnace system | |
| CN110701904A (en) | Non-ferrous metal smelting furnace | |
| CN117739695A (en) | Waste heat recovery device for lead smelting of oxygen-enriched side-blown converter | |
| CN200949829Y (en) | Feed inlet structure for biological energy fuel boiler | |
| CN104729079A (en) | Hot air furnace | |
| CN204421008U (en) | A kind of cremation of remains stove | |
| CN106011372B (en) | A kind of electric arc furnaces sealing ramp automatic feeding device | |
| CN212133278U (en) | Energy-saving zinc alloy casting furnace | |
| CN213537801U (en) | Primary air inlet adjusting device of heat recovery coke oven | |
| CN211261826U (en) | Carbon plant waste heat recovery device | |
| CN220892913U (en) | Rotary furnace | |
| CN210773395U (en) | Non-ferrous metal smelting furnace | |
| CN209085338U (en) | The pre- heat recovery system of aluminium heating furnace | |
| CN110145759A (en) | Oxygen content control system during low-load of boiler | |
| CN106765189B (en) | A kind of environment-friendly type quickly handles garbage apparatus | |
| CN221548986U (en) | Boiler preheater for industrial boiler | |
| CN220169476U (en) | Soot blower with turning plate type control structure | |
| CN220749054U (en) | Electric flap valve | |
| CN2769265Y (en) | Full-closed environment protection type lime kiln | |
| CN201462953U (en) | Dual-purpose coal furnace auxiliary combustion device for single fan to blow and induce air | |
| CN209688845U (en) | A kind of environment protection garbage incineration furnace | |
| CN2175872Y (en) | Air classification step-burning boiling kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |