CN215050459U - Iron alloy converter - Google Patents
Iron alloy converter Download PDFInfo
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- CN215050459U CN215050459U CN202120620506.8U CN202120620506U CN215050459U CN 215050459 U CN215050459 U CN 215050459U CN 202120620506 U CN202120620506 U CN 202120620506U CN 215050459 U CN215050459 U CN 215050459U
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Abstract
The utility model provides an iron alloy converter, which comprises a converter body and a converter transmission device; the furnace shell of the converter body is of a truncated cone-shaped structure and comprises a furnace bottom, a furnace body and a furnace cap; the furnace bottom is of a short round table-shaped welding structure, and reinforcing steel bars are welded on the periphery of the outside of the furnace bottom; the upper part of the furnace body is of a circular straight cylinder structure, the lower part of the furnace body is of a circular truncated cone structure, and the lower part of the furnace body and the furnace bottom are connected together through a first pin shaft; the furnace cap is a circular truncated cone-shaped structure with a straight section, and the top of the furnace cap is provided with a tapping furnace mouth; the lower part of the furnace cap is connected with the top of the furnace body through a second pin shaft; the converter transmission device at least comprises a transmission gear set and a backing ring for secondary speed reduction; the supporting ring consists of a supporting ring box, an ear shaft sleeve and a trunnion; the supporting ring box is a circular box body, lug shaft sleeves are welded at two ends of the supporting ring, the supporting ring box is symmetrically welded on the supporting ring box, and the transmission ends of the trunnions are inserted into the lug shaft sleeves. The furnace body has reasonable structural design, low gravity center, good stability, flexible and controllable lifting stroke of the oxygen lance and higher stroke.
Description
Technical Field
The utility model belongs to the new ecological electric arc furnace technology, concretely relates to ferroalloy converter.
Background
The ferroalloy converter is a converter for making steel by blowing oxygen from the top, and the converter consists of a converter body, a tilting system, an oxygen lance and an oxygen supply system, wherein the uppermost end of the converter is called a converter mouth and is divided into three sections, namely a furnace cap, a furnace body and a furnace bottom, from top to bottom.
The structure of current ferroalloy top-blown converter is mostly approximate straight tube-shape, and it is big to have the iron liquid degree of depth, the focus is higher, is unfavorable for blowing ferroalloy and increases the stability of furnace body, and oxygen rifle promotes highly relatively more fixed, is unfavorable for obtaining the promotion stroke of more altitude ranges.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an iron alloy converter with a lower furnace body gravity center, strong stability and a more flexible lifting stroke of an oxygen lance.
In order to achieve the purpose, the utility model provides an iron alloy converter, its characterized in that: comprises a converter body and a converter transmission device;
the furnace shell of the converter body is of a truncated cone-shaped structure and comprises a furnace bottom, a furnace body and a furnace cap; the furnace bottom is of a short truncated cone-shaped welding structure, and reinforcing steel bars are welded on the periphery of the outer part of the furnace bottom; the upper part of the furnace body is of a circular straight cylinder structure, the lower part of the furnace body is of a circular truncated cone structure, and the lower part of the furnace body and the furnace bottom are connected together through a first pin shaft; the furnace cap is a circular truncated cone-shaped structure with a straight section, and the top of the furnace cap is provided with a tapping furnace mouth; the lower part of the furnace cap is connected with the top of the furnace body through a second pin shaft;
the converter transmission device at least comprises a transmission gear set with a secondary speed reduction function and a backing ring; the transmission gear set for the two-stage speed reduction comprises a first stage formed by a soft tooth surface speed reducer of a cylindrical gear and a second stage formed by an open gear mechanism of the cylindrical gear;
the supporting ring consists of a supporting ring box, an ear shaft sleeve and a trunnion; the supporting ring box is a circular box body formed by welding steel plates, the two ends of the supporting ring are welded with lug shaft sleeves, the lug shaft sleeves are steel castings and are symmetrically welded on the supporting ring box, and the coaxiality of the symmetrically arranged lug shaft sleeves is less than 1.5 mm;
the trunnion includes transmission end and non-transmission end, and the transmission end inserts in the trunnion cover to realize the transmission through the key.
The converter transmission device is arranged on the mounting base opposite to the converter transmission device; the oxygen lance lifting and rotating device comprises an oxygen lance hood rotating mechanism transmission device, a stand column and an oxygen lance lifting and transmitting device;
the upright post is formed by welding profile steels, and vertical upper and lower guide rails are welded on the periphery of the upright post;
the oxygen lance lifting transmission device comprises a lifting motor, a lifting speed reducer and a lifting trolley, wherein the lifting motor and the lifting speed reducer are arranged on a foundation, and the lifting trolley is arranged on the guide rail;
the oxygen lance is fixed on a cross beam positioned at the top of the upright post and is connected with the lifting trolley after passing through the guide wheel group through the lifting steel rope;
the oxygen lance lifting and rotating device comprises a bearing beam which is arranged on the upright post and can rotate in the circumferential direction through a rotating roller assembly and a driving speed reduction motor set which is arranged at one end of the bearing beam;
the other end of the bearing beam is fixedly connected with the smoke hood.
The stand is a double-section telescopic sleeve structure, and the oxygen lance is lifted by the second sleeve of the inner sleeve and the second cross beam arranged at the top of the second sleeve.
The utility model has the advantages that: the oxygen lance lifting device has the advantages of reasonable design of the furnace body structure, low gravity center, good stability, more stable structure of the backing ring, flexible and controllable lifting stroke of the oxygen lance and higher stroke.
Drawings
FIG. 1 is a schematic view of the structure of a converter body.
FIG. 2 is a schematic view of a ferroalloy converter system.
Description of reference numerals: 1. a furnace bottom; 2. a furnace body; 3. a furnace cap; 4. a soft tooth surface speed reducer; 5. an open gear mechanism; 6. a trunnion ring box; 7. an earmuff; 8. installing a foundation; 9. a column; 10. a lifting motor; 11. an oxygen lance; 12. a cross beam; 13. a load beam; 14. driving a speed reduction motor set; 15. a smoke hood; 16. A second sleeve; 17. a second cross member.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "alignment", "overlapping", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
In order to provide an iron alloy converter with a lower furnace body gravity center, strong stability and more flexible lifting stroke of an oxygen lance, the embodiment provides the iron alloy converter shown in fig. 1, which comprises a converter body and a converter transmission device, and particularly, the beginning point is that a furnace shell of the converter body is in a truncated cone structure and comprises a furnace bottom 1, a furnace body 2 and a furnace cap 3; the furnace bottom 1 is of a short-truncated-cone-shaped welding structure, and reinforcing steel bars are welded on the periphery of the outer portion of the furnace bottom 1; the upper part of the furnace body 2 is of a circular straight cylinder structure, the lower part of the furnace body 2 is of a circular truncated cone structure, and the lower part of the furnace body 2 and the furnace bottom 1 are connected together through a first pin shaft; the furnace cap 3 is a round table structure with a straight section, and the top of the furnace cap 3 is provided with a tapping furnace mouth; in order to adapt to the high temperature when the ferrochrome water is blown, the steel plate of the furnace cap is thicker than the furnace cap of the common steel-making converter.
The lower part of the furnace cap 3 is connected with the top of the furnace body 2 through a second pin shaft; the converter transmission device at least comprises a transmission gear set and a backing ring for secondary speed reduction; the transmission gear set for the two-stage speed reduction comprises a first stage consisting of a soft tooth surface speed reducer 4 of a cylindrical gear and a second stage consisting of an open gear mechanism 5 of the cylindrical gear; the trunnion ring consists of a trunnion ring box 6, a trunnion sleeve 7 and a trunnion; the supporting ring box 6 is a circular box body formed by welding steel plates, the two ends of the supporting ring are welded with trunnion sleeves 7, the trunnion sleeves are steel castings and are symmetrically welded on the supporting ring box 6, and the coaxiality of the symmetrically arranged trunnion sleeves 7 is less than 1.5 mm; thereby ensure the steadiness of furnace body, the trunnion includes drive end and non-drive end, and the drive end is inserted in the trunnion cover to realize the transmission through the key, with transmission motion and torque.
The transmission mechanism of the converter adopts a full-landing form, and the gear set is an open mechanism, so that the converter has the characteristics of sufficient rigidity, simplicity in maintenance and high transmission capacity. The converter transmission mechanism comprises a motor set, a transmission gear set, a base, a bearing seat, a backing ring and the like. The motor set consists of a metallurgical winding motor and a hydraulic brake and has the characteristics of large starting torque and strong braking capability. The bearing seat is a steel casting, and the self-aligning roller bearing is arranged in the bearing seat, so that the bearing seat has the characteristics of strong impact resistance, small rotating friction force, trunnion displacement compensation and the like. The specific selection of these devices can be flexibly configured according to design needs.
The converter further comprises an oxygen lance lifting and rotating device shown in the figure 2, and the oxygen lance lifting and rotating device is arranged on a mounting base 8 opposite to the converter transmission device; the arrangement design does not influence the tilting space of the converter in front of the converter and behind the converter, and the oxygen lance lifting and rotating device comprises an oxygen lance hood rotating mechanism transmission device, a stand column 9 and an oxygen lance lifting and transmission device; the upright post 9 is formed by welding profile steels, and vertical upper and lower guide rails are welded on the periphery of the upright post; the oxygen lance lifting transmission device comprises a lifting motor 10 arranged on a foundation 8, a lifting speed reducer and a lifting trolley arranged on a guide rail.
The oxygen lance 11 is fixed on a cross beam 12 positioned at the top of the upright post 9, and the oxygen lance 11 is connected with the lifting trolley through a lifting steel rope after passing through a guide wheel set; in order to flexibly control the lifting height of the oxygen lance and increase the lifting stroke of the oxygen lance, the upright column 9 provided by the embodiment is of a double-section telescopic sleeve structure, the oxygen lance is lifted through the second sleeve 16 of the inner sleeve and the second cross beam 17 arranged at the top of the second sleeve 16, and the lance body moves up and down to adjust the lance position according to different molten steel quantities.
The oxygen lance adopts a structure of a Laval water-cooling nozzle (single hole) and a water-cooling protection mode on the outer layer. The oxygen lance nozzle adopts T2 red copper, and the inner pipe and the outer pipe adopt stainless steel materials. The oxygen lance aims to enlarge the contact area between the ferroalloy and the molten steel and ensure the decarburization speed and the uniformity of the molten steel. The pressure of the cooling water of the oxygen lance is 0.8MPa, the consumption is 40m3/h, and a user is provided with a flow transmitter on a water inlet pipeline and a water outlet pipeline, so that whether the oxygen lance leaks water or not can be found in time.
The oxygen blowing device is an oxygen supply facility of the oxygen lance and is required to be safe and reliable, and valves and instruments adopt explosion-proof facilities, so that the system is required to be adjusted reliably and stably; meanwhile, the oxygen supply amount is an important basis for judging the oxygen blowing process, so that the measurement is required to be accurate; because the oxygen lance is a water cooling device, the iron alloy can be cut off quickly in case of an accident; the system is provided with a non-return device.
Generally, the oxygen lance ascends by being pulled by a counterweight mechanism in a barrel body through a steel wire rope, and the oxygen lance descends by being pulled by a speed reducer and a braking mechanism. The brake of the oxygen lance adopts an electromagnetic mechanism, and is provided with a manual release, the release is pulled, the hoisting machine braking mechanism is disengaged, and the oxygen lance upright post is dragged to quickly rise to a safe position by a balance weight in the barrel body.
The oxygen lance lifting and rotating device comprises a carrier beam 13 which is arranged on a stand column and can rotate in the circumferential direction through a rotating roller assembly and a driving speed reduction motor group 14 which is arranged at one end of the carrier beam 13; the other end of the bearing beam 13 is fixedly connected with the smoke cover 15. The driving gear motor set 14 drives the rolling wheel meshed with the upright post to drive the bearing beam 13 to rotate circumferentially, so that the smoke hood is opened and closed.
In addition, the automatic charging system mainly comprises a stock bin device, a weighing and feeding device, a bell-type charging bucket and the like. The storage bin device mainly comprises a manual gate valve, a vibration feeder and the like, and the storage bin is mainly formed by welding profile steel and steel plates and is arranged in an inverted cone shape with a large upper part and a small lower part. The vibrating feeder is arranged at the outlet at the lower end of the bin, and can quickly and accurately feed materials in the bin to the weighing hopper.
The weighing and feeding device mainly comprises a weighing bin, a weighing sensor, a vibration feeder and the like. The weighing bin is formed by welding a steel plate and profile steel, and the weighing device is used for accurately metering materials to be added into the furnace mainly according to process requirements. The vibration feeder sends the materials with accurate measurement to the belt feeding device. The materials pass through the belt feeding device and enter the furnace through the chute.
The feeding device can quickly and accurately feed materials accurately weighed into the furnace under the pollution-free condition so as to meet the requirements of normal production. The bell-type charging bucket is made of steel plates and is large in upper part and small in lower part. It is a container for transporting various materials to a storage bin through a lifting device (a travelling crane). The vibration feeder adopts frequency conversion control speed regulation, the control has two control modes, one is controlled by a PLC (programmable logic controller) to realize production automation, the other is manually controlled on site, and when the feeding system works, the output of the weighing sensor is a 4-20mmA signal which can be identified by the PLC.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (3)
1. An iron alloy converter is characterized in that: comprises a converter body and a converter transmission device;
the furnace shell of the converter body is of a truncated cone-shaped structure and comprises a furnace bottom (1), a furnace body (2) and a furnace cap (3); the furnace bottom (1) is of a short-truncated-cone-shaped welding structure, and reinforcing steel bars are welded on the periphery of the outer part of the furnace bottom (1); the upper part of the furnace body (2) is of a circular straight-tube structure, the lower part of the furnace body (2) is of a circular truncated cone structure, and the lower part of the furnace body (2) is connected with the furnace bottom (1) through a first pin shaft; the furnace cap (3) is a circular truncated cone-shaped structure with a straight section, and the top of the furnace cap (3) is provided with a tapping furnace mouth; the lower part of the furnace cap (3) is connected with the top of the furnace body (2) through a second pin shaft;
the converter transmission device at least comprises a transmission gear set with a secondary speed reduction function and a backing ring; the transmission gear set for the two-stage speed reduction comprises a first stage formed by a soft tooth surface speed reducer (4) of a cylindrical gear and a second stage formed by an open gear mechanism (5) of the cylindrical gear;
the supporting ring consists of a supporting ring box (6), a trunnion sleeve (7) and a trunnion; the supporting ring box (6) is a circular box body formed by welding steel plates, the two ends of the supporting ring are welded with lug shaft sleeves (7), the lug shaft sleeves are steel castings and are symmetrically welded on the supporting ring box (6), and the coaxiality of the symmetrically arranged lug shaft sleeves (7) is less than 1.5 mm;
the trunnion includes transmission end and non-transmission end, and the transmission end inserts in the trunnion cover to realize the transmission through the key.
2. The ferroalloy converter of claim 1, wherein: the converter is characterized by also comprising an oxygen lance lifting and rotating device, wherein the oxygen lance lifting and rotating device is arranged on a mounting base (8) opposite to the converter transmission device; the oxygen lance lifting and rotating device comprises an oxygen lance hood rotating mechanism transmission device, a stand column (9) and an oxygen lance lifting and transmitting device;
the upright post (9) is formed by welding profile steels, and vertical upper and lower guide rails are welded on the periphery of the upright post;
the oxygen lance lifting transmission device comprises a lifting motor (10) arranged on a foundation (8), a lifting speed reducer and a lifting trolley arranged on the guide rail;
the oxygen lance (11) is fixed on a cross beam (12) positioned at the top of the upright post (9), and the oxygen lance (11) is connected with the lifting trolley through a lifting steel rope after passing through a guide wheel set;
the oxygen lance lifting and rotating device comprises a bearing beam (13) which is arranged on the upright post and can rotate in the circumferential direction through a rotating roller assembly and a driving speed reduction motor set (14) which is arranged at one end of the bearing beam (13);
the other end of the bearing beam (13) is fixedly connected with the smoke hood (15).
3. The ferroalloy converter of claim 2, wherein: the upright post (9) is of a double-section telescopic sleeve structure, and the oxygen lance is lifted through a second sleeve (16) of the inner sleeve and a second cross beam (17) arranged at the top of the second sleeve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120620506.8U CN215050459U (en) | 2021-03-26 | 2021-03-26 | Iron alloy converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120620506.8U CN215050459U (en) | 2021-03-26 | 2021-03-26 | Iron alloy converter |
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| Publication Number | Publication Date |
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| CN215050459U true CN215050459U (en) | 2021-12-07 |
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| CN202120620506.8U Active CN215050459U (en) | 2021-03-26 | 2021-03-26 | Iron alloy converter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114318006A (en) * | 2021-12-14 | 2022-04-12 | 扬州一川镍业有限公司 | Smelting device and method for smelting ferronickel by using nickel oxide ore |
-
2021
- 2021-03-26 CN CN202120620506.8U patent/CN215050459U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114318006A (en) * | 2021-12-14 | 2022-04-12 | 扬州一川镍业有限公司 | Smelting device and method for smelting ferronickel by using nickel oxide ore |
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