CN211147339U - Oxygen supply device in steelmaking electric arc furnace - Google Patents
Oxygen supply device in steelmaking electric arc furnace Download PDFInfo
- Publication number
- CN211147339U CN211147339U CN201921825227.4U CN201921825227U CN211147339U CN 211147339 U CN211147339 U CN 211147339U CN 201921825227 U CN201921825227 U CN 201921825227U CN 211147339 U CN211147339 U CN 211147339U
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- China
- Prior art keywords
- fixedly connected
- base
- vertically arranged
- top end
- electric arc
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000001301 oxygen Substances 0.000 title claims abstract description 46
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 46
- 238000010891 electric arc Methods 0.000 title claims abstract description 33
- 238000009628 steelmaking Methods 0.000 title claims abstract description 14
- 238000003860 storage Methods 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 48
- 239000003345 natural gas Substances 0.000 abstract description 24
- 230000008859 change Effects 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
-
- 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
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- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model relates to the technical field of steel making, in particular to an in-furnace oxygen supply device for a steel-making electric arc furnace, which comprises a base and an electric arc furnace, wherein the right end of the base is fixedly connected with a vertically arranged control cabinet, the top right side of the base is fixedly connected with a vertically arranged fixing frame, the inner side of the top end of the fixing frame is fixedly connected with a vertically arranged limiting shaft, the limiting shaft is fixedly connected with the base, the top right side of the base is fixedly connected with a vertically arranged telescopic rod, and the top end of the telescopic rod is fixedly connected with a horizontally arranged support plate. And simultaneously, the blades rotate quickly to drive the change of surrounding airflow, so that the natural gas and the oxygen are mixed.
Description
Technical Field
The utility model relates to the technical field of steel making, in particular to an oxygen supply device in a furnace for a steelmaking electric arc furnace.
Background
The electric furnace for smelting ore and metal by using high temperature generated by electrode arc in the electric arc furnace has the advantages that the energy is concentrated when the gas discharge forms the electric arc, the temperature of an arc zone is more than 3000 ℃, the process flexibility of the electric arc furnace is higher than that of other steel-making furnaces for smelting metal, impurities such as sulfur, phosphorus and the like can be effectively removed, the furnace temperature is easy to control, the occupied area of equipment is small, the electric arc furnace is suitable for smelting high-quality alloy steel, along with the development of the hot charging technology of molten iron in the electric arc furnace for steel-making, the intensified oxygen supply of a molten pool and the improvement of chemical energy input are effective ways for accelerating the smelting rhythm of the electric arc furnace and shortening the smelting period, and along with the development of the society, the application of the electric.
Most simple structure of the electric arc furnace oxygen supply device that appears in the market at present, the function is single, when the inboard to the electric hoist is supplied oxygen, natural gas and oxygen are separately to spouting the inboard of electric arc furnace, this kind of condition leads to natural gas and oxygen to mix inadequately easily, cause natural gas and oxygen then inadequately, the consumption that has caused natural gas and oxygen increases, the waste of natural gas and oxygen has been caused, the cost of production has been increased, and when current oxygen tank used up soon, do not possess automatic alarm's function, lead to spouting the oxygen reduction of electric arc furnace, cause the natural gas burning inadequately, therefore, provide an oxygen supply device in stove for steelmaking electric arc furnace to above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oxygen supply device in stove for steelmaking electric arc furnace to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an oxygen supply device in a furnace for a steelmaking electric arc furnace comprises a base and the electric arc furnace, wherein a vertically arranged control cabinet is fixedly connected to the right end of the base, a vertically arranged fixing frame is fixedly connected to the right side of the top end of the base, a vertically arranged limiting shaft is fixedly connected to the inner side of the top end of the fixing frame, the limiting shaft is fixedly connected with the base, a vertically arranged telescopic rod is fixedly connected to the right side of the top end of the base, a horizontally arranged supporting plate is fixedly connected to the top end of the telescopic rod, the supporting plate is slidably connected with the limiting shaft, a vertically arranged fixing plate is fixedly connected to the top end of the supporting plate, a vertically arranged storage tank is fixedly connected to the central position of the top end of the supporting plate, the storage tank is fixedly connected with the fixing plate, an air pump is communicated with the inner side of the top end of the storage tank through a pipeline and, the inner side of the right end of the mixing box is communicated with a horizontally arranged air inlet pipe, the outer side of the air inlet pipe is communicated with a ball valve and is positioned at the lower side, the air inlet pipe is communicated with the air pump, the inner side of the left end of the mixing box is fixedly connected with a vertically arranged fixed rod, the inner side of the fixed rod is fixedly connected with a motor, the tail end of a main shaft of the motor is fixedly connected with a turntable, the outer side of the turntable is fixedly connected with a blade, the inner side of the mixing box is fixedly connected with a vertically arranged first baffle, the first baffle is arranged at the right side of the blade, the right side of the first baffle is fixedly connected with a vertically arranged second baffle, the second baffle is fixedly connected with the mixing box, the inner side of the left end of the mixing box is communicated with an induced draft fan, the induced draft fan is fixedly connected with a base, and the electric arc furnace is fixedly connected with the base.
Preferably, the alarm is fixedly connected to the top end of the fixing frame on the right side, the connecting plate is fixedly connected to the left end of the fixing frame on the right side, and the limit switch is fixedly connected to the bottom end of the connecting plate.
Preferably, the outside of telescopic link is provided with the spring, and the top and the bottom of spring respectively with backup pad and base fixed connection, and the total number of telescopic link is four, and even distribution is around the bottom of backup pad.
Preferably, the number of the fixing frames is two in total, the fixing frames are arranged in an L shape, and the fixing frames are symmetrically distributed on the left side and the right side of the vertical center line of the storage tank.
Preferably, the right side of the second baffle is provided with a guide plate, and the guide plate is fixedly connected with the mixing box.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, through the holding vessel that sets up, the alarm, spacing axle, a spring, a supporting plate, fixed plate and limit switch etc. after oxygen in the holding vessel used up soon, the backup pad can up move under the effect of spring to touching limit switch, then limit switch triggers the alarm and reports to the police to the staff, reminds the staff in time to handle the holding vessel, guarantees the inboard oxygen capacity of holding vessel, avoids reducing because of the oxygen that spouts into the electric arc furnace, causes the insufficient phenomenon of natural gas burning to take place.
2. The utility model discloses in, through the mixing box that sets up, the blade, the carousel, first baffle, second baffle and guide plate etc, after natural gas and oxygen process guide plate, can carry out preliminary mixture to natural gas and oxygen through the effect of guide plate and second baffle, then natural gas and oxygen are through sheltering from of first baffle, change the route that flows, and simultaneously through the fast rotation of blade, drive the change of air current on every side, make natural gas and oxygen mix, solve traditional natural gas and oxygen and mix inhomogeneous phenomenon.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of a portion a of fig. 1 according to the present invention.
In the figure: 1-base, 2-arc furnace, 3-spray gun, 4-induced draft fan, 5-fixed rod, 6-mixing box, 7-blade, 8-rotary table, 9-first baffle, 10-second baffle, 11-guide plate, 12-ball valve, 13-air pump, 14-storage tank, 15-alarm, 16-fixed frame, 17-control cabinet, 18-spacing shaft, 19-spring, 20-telescopic rod, 21-support plate, 22-fixed plate, 23-connecting plate, 24-spacing switch, 25-air inlet pipe, 26-motor.
Detailed Description
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 work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution:
an oxygen supply device in a furnace for a steelmaking electric arc furnace comprises a base 1 and an electric arc furnace 2, wherein a vertically arranged control cabinet 17 is fixedly connected to the right end of the base 1, the normal operation of the device is controlled by the control cabinet 17, a vertically arranged fixing frame 16 is fixedly connected to the right side of the top end of the base 1, a vertically arranged limiting shaft 18 is fixedly connected to the inner side of the top end of the fixing frame 16, the limiting shaft 18 is fixedly connected with the base 1, a vertically arranged telescopic rod 20 is fixedly connected to the right side of the top end of the base 1, a horizontally arranged supporting plate 21 is fixedly connected to the top end of the telescopic rod 20, the supporting plate 21 is in sliding connection with the limiting shaft 18, the stable operation of the supporting plate 21 is ensured by the limiting shaft 18, a vertically arranged fixing plate 22 is fixedly connected to the top end of the supporting plate 21, a vertically arranged storage tank 14, and the storage tank 14 is fixedly connected with the fixing plate 22, oxygen is stored through the storage tank 14, the top end inner side of the storage tank 14 is communicated with an air pump 13 through a pipeline, the air pump 13 is fixedly connected with the base 1, the top end of the base 1 is fixedly connected with a horizontally arranged mixing box 6, the right end inner side of the mixing box 6 is communicated with a horizontally arranged air inlet pipe 25, the outer side of the air inlet pipe 25 is communicated with a ball valve 12, the air inlet pipe 25 positioned at the lower side is communicated with the air pump 13, the left end inner side of the mixing box 6 is fixedly connected with a vertically arranged fixing rod 5, the inner side of the fixing rod 5 is fixedly connected with a motor 26, the tail end of a main shaft of the motor 26 is fixedly connected with a turntable 8, the outer side of the turntable 8 is fixedly connected with blades 7, the turntable 8 is driven to rotate through the motor 26, the inner, and first baffle 9 sets up the right side at blade 7, the second baffle 10 of the vertical setting of right side fixedly connected with of first baffle 9, and second baffle 10 and 6 fixed connection of mixing box, the inboard intercommunication of left end of mixing box 6 has draught fan 4, and draught fan 4 and base 1 fixed connection accelerate the mist to get into electric arc furnace 2 through draught fan 4, the left end outside intercommunication of draught fan 4 has spray gun 3, the right-hand member outside intercommunication of spray gun 3 has electric arc furnace 2, and electric arc furnace 2 and base 1 fixed connection.
The utility model discloses a natural gas mixing box, including mount 16, be located the right side mount 16's top fixedly connected with alarm 15, be located the right side mount 16's left end fixedly connected with connecting plate 23, the bottom fixedly connected with limit switch 24 of connecting plate 23, through limit switch 24 and alarm 15 mutually support, can in time report to the police to the staff when the inboard oxygen of holding vessel 14 is used up soon, remind the staff in time to handle holding vessel 14, the outside of telescopic link 20 is provided with spring 19, and spring 19's top and bottom respectively with backup pad 21 and base 1 fixed connection, and there are four total in the number of telescopic link 20, and even distribution is around the bottom of backup pad 21, can realize the support to backup pad 21 on the one hand through the effect of telescopic link 20 and spring 19, and on the other hand can guarantee holding vessel 14 when using up soon through spring 19, spring 19 makes holding vessel 14 move up, total two in the number of mount 16, and be "L" type setting, and symmetric distribution is in the left and right sides of the vertical central line of holding vessel 14, can realize the right side fixing limiting shaft 18 through mount 16, second side mount 10 is provided with guide plate 11, and the guide plate 11 and the oxygen mixing box is connected through the guide plate, then the oxygen mixing box is carried out the baffle and is carried out the second mixing box and is carried out the baffle from the mixed from the.
The model of electric arc furnace 2 is NF-35, the model of draught fan 4 is Y6-30-12, the model of air pump 13 is ZYWB6, the model of alarm 15 is MAM100, the model of switch board 17 is SDTH, limit switch 24' S model is L DVS-5204S, the model of motor 26 is Y1-160M1-8 motor.
The working process is as follows: in the utility model, before the use, the power is supplied by the external power supply, the air inlet pipe 25 on the upper side is communicated with the external natural gas source, when the oxygen is supplied to the inner side of the electric arc furnace 2, the natural gas can enter the inner side of the mixing box 6 through the air inlet pipe 25 on the upper side and the ball valve 12 and collide with the guide plate 11, meanwhile, the air pump 13 can enable the oxygen in the storage tank 14 to enter the inner side of the mixing box 6 through the air inlet pipe 25 on the lower side and the ball valve 12 and collide with the guide plate 11, after the natural gas collides with the guide plate 11, the flowing direction can be changed, and the natural gas and the oxygen can flow to the gap formed between the second baffles 10 on the upper side and the lower side, so that the natural gas and the oxygen can be primarily mixed, then the natural gas and the oxygen continue to flow leftwards, and then collide with the, then collide with the first baffle 9 of upside again, and the direction of flow changes, the second time of having realized natural gas and oxygen is mixed, then natural gas and oxygen pass through blade 7, motor 26 drives blade 7 through carousel 8 and rotates fast simultaneously, it rotates to drive air around through the fast rotation of blade 7, the realization is mixed the third time to natural gas and oxygen, it is abundant to guarantee that natural gas and oxygen mix, draught fan 4 passes through spray gun 3 to the gas after mixing and spouts the inboard of electric arc furnace 2, along with the reduction of oxygen in the holding vessel 14, telescopic link 20 and spring 19 can drive holding vessel 14 through backup pad 21 and up move, when backup pad 21 touches limit switch 24, limit switch 24 starts alarm 15, alarm 15 reports to the police to the staff personnel after that.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a steelmaking is interior oxygen suppliment device of stove for electric arc furnace, includes base (1) and electric arc furnace (2), its characterized in that: the right end of the base (1) is fixedly connected with a vertically arranged control cabinet (17), the right side of the top end of the base (1) is fixedly connected with a vertically arranged fixing frame (16), the inner side of the top end of the fixing frame (16) is fixedly connected with a vertically arranged limiting shaft (18), the limiting shaft (18) is fixedly connected with the base (1), the right side of the top end of the base (1) is fixedly connected with a vertically arranged telescopic rod (20), the top end of the telescopic rod (20) is fixedly connected with a horizontally arranged supporting plate (21), the supporting plate (21) is slidably connected with the limiting shaft (18), the top end of the supporting plate (21) is fixedly connected with a vertically arranged fixing plate (22), the central position of the top end of the supporting plate (21) is fixedly connected with a vertically arranged storage tank (14), and the storage tank (14) is fixedly connected with the fixing plate (22), the top end inner side of the storage tank (14) is communicated with an air pump (13) through a pipeline, the air pump (13) is fixedly connected with the base (1), the top end of the base (1) is fixedly connected with a horizontally arranged mixing box (6), the right end inner side of the mixing box (6) is communicated with a horizontally arranged air inlet pipe (25), the outer side of the air inlet pipe (25) is communicated with a ball valve (12), the air inlet pipe (25) positioned at the lower side is communicated with the air pump (13), the left end inner side of the mixing box (6) is fixedly connected with a vertically arranged fixed rod (5), the inner side of the fixed rod (5) is fixedly connected with a motor (26), the tail end of a main shaft of the motor (26) is fixedly connected with a turntable (8), the outer side of the turntable (8) is fixedly connected with blades (7), the inner side of the mixing box (6) is fixedly connected with a, and first baffle (9) set up the right side at blade (7), second baffle (10) of the vertical setting of right side fixedly connected with of first baffle (9), and second baffle (10) and mixing box (6) fixed connection, the inboard intercommunication of left end of mixing box (6) has draught fan (4), and draught fan (4) and base (1) fixed connection, the left end outside intercommunication of draught fan (4) has spray gun (3), the right-hand member outside intercommunication of spray gun (3) has electric arc furnace (2), and electric arc furnace (2) and base (1) fixed connection.
2. The apparatus as claimed in claim 1, wherein the oxygen supply means comprises: the alarm device is characterized in that the top end of the fixing frame (16) on the right side is fixedly connected with an alarm device (15), the left end of the fixing frame (16) on the right side is fixedly connected with a connecting plate (23), and the bottom end of the connecting plate (23) is fixedly connected with a limit switch (24).
3. The apparatus as claimed in claim 1, wherein the oxygen supply means comprises: the outside of telescopic link (20) is provided with spring (19), and the top and the bottom of spring (19) respectively with backup pad (21) and base (1) fixed connection, and the total four of number of telescopic link (20), and even distribution is around the bottom of backup pad (21).
4. The oxygen supply device in the steelmaking electric arc furnace as claimed in claim 1, wherein the number of said fixing frames (16) is two in total, and said fixing frames are arranged in L shape and symmetrically distributed on the left and right sides of the vertical center line of the storage tank (14).
5. The apparatus as claimed in claim 1, wherein the oxygen supply means comprises: the right side of the second baffle (10) is provided with a guide plate (11), and the guide plate (11) is fixedly connected with the mixing box (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825227.4U CN211147339U (en) | 2019-10-29 | 2019-10-29 | Oxygen supply device in steelmaking electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825227.4U CN211147339U (en) | 2019-10-29 | 2019-10-29 | Oxygen supply device in steelmaking electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211147339U true CN211147339U (en) | 2020-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921825227.4U Expired - Fee Related CN211147339U (en) | 2019-10-29 | 2019-10-29 | Oxygen supply device in steelmaking electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211147339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215339A (en) * | 2021-04-22 | 2021-08-06 | 毛建花 | Pig iron refining equipment capable of adjusting air inlet rate |
-
2019
- 2019-10-29 CN CN201921825227.4U patent/CN211147339U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215339A (en) * | 2021-04-22 | 2021-08-06 | 毛建花 | Pig iron refining equipment capable of adjusting air inlet rate |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |