CN113046509A - Rotary stirring and blowing equipment for molten iron desulfurization - Google Patents
Rotary stirring and blowing equipment for molten iron desulfurization Download PDFInfo
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- CN113046509A CN113046509A CN202110281623.0A CN202110281623A CN113046509A CN 113046509 A CN113046509 A CN 113046509A CN 202110281623 A CN202110281623 A CN 202110281623A CN 113046509 A CN113046509 A CN 113046509A
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- molten iron
- desulfurization
- spraying
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- 238000003756 stirring Methods 0.000 title claims abstract description 136
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 238000007664 blowing Methods 0.000 title claims abstract description 76
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 71
- 230000023556 desulfurization Effects 0.000 title claims abstract description 71
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 49
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract 22
- 239000007921 spray Substances 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims description 11
- 230000003009 desulfurizing effect Effects 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 230000003028 elevating effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000010907 mechanical stirring Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
本发明公开了一种铁水脱硫旋转搅拌喷吹设备，铁水脱硫旋转搅拌喷吹设备包括至少两个旋转搅拌喷吹装置，任一所述旋转搅拌喷吹装置包括主框架、可沿所述主框架移动的升降装置、设于所述升降装置上的旋转驱动装置、与所述旋转驱动装置的搅拌主轴配合连接的喷吹系统，且所述喷吹系统的底部设有搅拌头；还包括下横移轨道、上横移轨道和横移装置，所述横移装置与全部所述主框架连接，以带动全部所述旋转搅拌喷吹装置沿所述下横移轨道和所述上横移轨道滑移。上述铁水脱硫旋转搅拌喷吹设备可以实现无间断的脱硫，这样能够有效压缩非工艺的时间，减少温降，不仅可以大大提高脱硫效率，而且可以减少脱硫剂的消耗，从而可以有效降低生产成本和功耗。
The invention discloses a rotary stirring and spraying equipment for molten iron desulfurization. The rotary stirring and spraying equipment for molten iron desulfurization comprises at least two rotary stirring and spraying devices. A moving lifting device, a rotary driving device arranged on the lifting device, a blowing system matched with the stirring spindle of the rotary driving device, and a stirring head is arranged at the bottom of the spraying system; and a lower horizontal A traverse track, an upper traverse track and a traverse device, the traverse devices are connected with all the main frames, so as to drive all the rotary stirring and spraying devices to slide along the lower traverse track and the upper traverse track. shift. The above-mentioned molten iron desulfurization rotary stirring and spraying equipment can realize uninterrupted desulfurization, which can effectively compress non-process time and reduce temperature drop, which can not only greatly improve desulfurization efficiency, but also reduce the consumption of desulfurization agent, thereby effectively reducing production costs and power consumption.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to molten iron desulphurization rotary stirring and blowing equipment.
Background
At present, there are two main methods for desulfurization, namely, KR method and blowing method.
The KR method is a molten iron desulphurization method adopting mechanical stirring, when molten iron is desulphurized in a steel ladle, a desulphurizing agent is added to the surface of the steel ladle, and the desulphurizing agent and the molten iron are fully mixed and reacted through a stirring head; the blowing method is to spray the desulfurizer into molten iron through carrier gas by using a desulfurization gun, the carrier gas plays a role in stirring at the same time, and the sprayed gas, the desulfurizer and the molten iron are mixed for desulfurization. However, the desulfurization efficiency in the prior art is low, and the market demand is difficult to meet.
Therefore, how to avoid the low efficiency of molten iron desulphurization in the prior art is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
The invention aims to provide molten iron desulphurization rotary stirring and blowing equipment which can effectively compress non-process time and reduce temperature drop so as to improve desulphurization efficiency.
In order to achieve the above object, the present invention provides a rotary stirring and blowing apparatus for molten iron desulfurization, comprising at least two rotary stirring and blowing devices, wherein any one of the rotary stirring and blowing devices comprises:
a main frame;
a lifting device movable along the main frame;
the rotary driving device is arranged on the lifting device;
the blowing system is matched and connected with the stirring main shaft of the rotary driving device, and a stirring head is arranged at the bottom of the blowing system;
the device comprises a main frame, a rotating stirring and blowing device and is characterized by further comprising a lower transverse moving track, an upper transverse moving track and a transverse moving device, wherein the transverse moving device is connected with all the main frames so as to drive all the rotating stirring and blowing devices to slide along the lower transverse moving track and the upper transverse moving track.
Optionally, the number of the rotary stirring and blowing devices is two, and the rotary stirring and blowing device further comprises a preparation station and a desulfurization station, and the two rotary stirring and blowing devices are respectively assembled in the preparation station and the desulfurization station.
Optionally, any one of the rotary stirring and blowing devices further comprises a lifting driving device for driving the lifting device to ascend and descend, and the lifting driving device comprises a lifting driving motor and a transmission assembly connected with the lifting driving motor and the lifting device.
Optionally, the drive assembly specifically is the chain drive assembly, the chain drive assembly include four group's sprocket groups, and with four groups the drive chain of sprocket group connection, first group the sprocket group rigid coupling in on lifting drive motor's the main shaft, the second group the sprocket group rigid coupling in the bottom of main frame, the third group the sprocket group rigid coupling in the top of main frame, the fourth group the sprocket group rigid coupling in first group sprocket group and second group between the sprocket group.
Optionally, the lifting device comprises:
a lifting frame;
the guide wheel set is arranged on the lifting frame;
and the support is arranged on the lifting frame and connected with the chain transmission assembly.
Optionally, the rotation driving device comprises:
a rotary drive motor;
the output shaft is a speed reducer with a hollow shaft;
the stirring main shaft is fixedly connected with the output shaft, the stirring main shaft is arranged on a bearing frame through a bearing assembly, and the bearing frame is arranged on the lifting frame.
Optionally, the blowing system comprises:
the rotary joint is arranged at the top of the stirring main shaft;
the first central pipe is arranged inside the stirring main shaft and connected with the rotary joint;
the spray gun is internally provided with a second central pipe;
the spray gun is connected with the stirring main shaft, the stirring head is arranged at the bottom of the spray gun, a desulfurizer inlet used for being connected with a desulfurizer input pipe is arranged at the top of the rotary joint, and the stirring head is provided with a blowing pipeline communicated with the second central pipe and a desulfurizer blowing outlet communicated with the blowing pipeline.
Optionally, the quick-change connecting device is used for connecting the spray gun and the stirring main shaft.
Optionally, the lifting device further comprises a locking device arranged on the lifting device and used for clamping a guide rail arranged on the main frame to prevent the lifting device from vibrating.
Optionally, the number of the locking devices is two, and the two locking devices are respectively arranged at the upper end and the lower end of the lifting device.
Compared with the background art, the rotary stirring and blowing equipment for molten iron desulphurization provided by the embodiment of the invention comprises at least two rotary stirring and blowing devices, wherein any rotary stirring and blowing device comprises a main frame, a lifting device, a rotary driving device and a blowing system, the lifting device can move up and down along the main frame, the rotary driving device is arranged on the lifting device, the blowing system is connected with a stirring main shaft of the rotary driving device in a matching way, and the bottom of the blowing system is provided with a stirring head; furthermore, the molten iron desulphurization rotary stirring and blowing equipment further comprises a lower transverse moving track, an upper transverse moving track and a transverse moving device, wherein the transverse moving device is connected with all the main frames, and the transverse moving device can drive all the rotary stirring and blowing devices to slide along the lower transverse moving track and the upper transverse moving track. On one hand, the equipment provided by the application can comprehensively utilize the advantages of mechanical stirring desulfurization and blowing desulfurization, firstly, the lifting device moves along the main frame to enable the stirring head at the bottom of the blowing system to enter the molten iron, then, the desulfurizing agent is sprayed into the molten iron through the blowing system and the stirring head, and then, the stirring head is driven by the rotary driving device to mechanically rotate to provide a dynamic condition for fully mixing the desulfurizing agent and the molten iron, so that the desulfurizing agent is sprayed without large air pressure and air quantity, large bubbles are prevented from being generated, further, the surface of the molten iron cannot splash, the utilization rate of the desulfurizing agent can be improved, and the working environment of desulfurization is improved; on the other hand, this application sets up a plurality of rotatory stirring jetting devices, and drive rotatory stirring jetting device through the sideslip device and slide along sideslip track and last sideslip track down, in order to realize uninterrupted desulfurization process, that is to say, after the desulfurization of a certain rotatory stirring jetting device, can move next rotatory stirring jetting device to the desulfurization station on through the sideslip motion, and then realize uninterrupted desulfurization, can effectively compress non-process's time like this, reduce the temperature drop, not only can improve desulfurization efficiency greatly, and can reduce the consumption of desulfurizer, thereby can effectively reduce manufacturing cost and consumption.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a double-station molten iron desulfurization rotary stirring and blowing device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a single-station rotary stirring and blowing apparatus according to an embodiment of the present invention;
figure 3 is a schematic view of the assembled structure of the rotary drive and the blowing system of figure 2;
FIG. 4 is a right side view of FIG. 3;
figure 5 is a schematic cross-sectional view of a blowing system;
FIG. 6 is an enlarged view of the structure of portion A of FIG. 5;
FIG. 7 is an enlarged view of the structure of the portion B of FIG. 5;
fig. 8 is a structural enlarged view of a portion C of fig. 5.
Wherein:
1-a lifting drive device; 101-a lifting drive motor; 102-a transmission assembly;
2-a rotation drive; 201-a rotary drive motor; 202-a speed reducer; 203-stirring main shaft; 204-a bearing frame;
3-a lifting device; 301-a lifting frame; 302-a guide wheel set;
4-quick change attachment; 401-clamping a base; 402-a rotational securing assembly; 403-a quick-connect assembly;
5-a blowing system; 501-a rotary joint; 5011-desulfurizer inlet; 502-a first center tube; 503-spray gun; 504-a second center tube; 505-a stirring head; 506-a blowing pipeline; 507-a desulfurizer blowing outlet;
6-downward traversing the track;
7-a traversing device;
8-a slide rail;
9-a main frame;
10-moving the rail upwards;
11-locking means.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide the rotary stirring and blowing equipment for molten iron desulphurization, which can effectively compress non-process time and reduce temperature drop, thereby improving desulphurization efficiency.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
It should be noted that the following directional terms such as "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.
Referring to fig. 1 to 8, fig. 1 is a schematic structural diagram of a double-station molten iron desulfurization rotary stirring and blowing device according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a single-station rotary stirring and blowing apparatus according to an embodiment of the present invention; figure 3 is a schematic view of the assembled structure of the rotary drive and the blowing system of figure 2; FIG. 4 is a right side view of FIG. 3; figure 5 is a schematic cross-sectional view of a blowing system; FIG. 6 is an enlarged view of the structure of portion A of FIG. 5; FIG. 7 is an enlarged view of the structure of the portion B of FIG. 5; fig. 8 is a structural enlarged view of a portion C of fig. 5.
The molten iron desulphurization rotary stirring and blowing equipment provided by the embodiment of the invention comprises at least two rotary stirring and blowing devices, wherein any rotary stirring and blowing device comprises a main frame 9, a lifting device 3, a rotary driving device 2 and a blowing system 5, wherein the lifting device 3 can move up and down along the main frame 9, the rotary driving device 2 is arranged on the lifting device 3, the blowing system 5 is connected with a stirring main shaft 203 of the rotary driving device 2 in a matching way, and the bottom of the blowing system 5 is provided with a stirring head 505.
So, the equipment that this application provided can utilize the advantage of mechanical stirring desulfurization and jetting desulfurization comprehensively, at first, move so that the stirring head 505 of jetting system 5 bottom gets into the inside of molten iron through elevating gear 3 along main frame 9, then, spout the desulfurizer into the molten iron through the stirring head 505 through jetting system 5, rethread rotary driving device 2 drives stirring head 505 mechanical rotation in order to provide the dynamics condition of desulfurizer and molten iron intensive mixing, so, it need not big atmospheric pressure and tolerance to spout the desulfurizer, thereby avoid producing big bubble, and then the molten iron surface can not produce and splash, can improve the utilization ratio of desulfurizer, and improve the operational environment of desulfurization.
Certainly, according to actual needs, the inside of the stirring head 505 can be provided with an injection pipeline 506 and a desulfurizer injection outlet 507 communicated with the injection pipeline 506, the desulfurizer is injected into molten iron through the injection pipeline 506 and the desulfurizer injection outlet 507 inside the stirring head 505, the desulfurizer floats upwards from the bottom of the molten iron, the rotating mechanical stirring head 505 only plays a role in improving the dynamic conditions of mixing and reaction of the desulfurizer, stirring at high power and rotating speed is not needed, and high efficiency and energy conservation are achieved.
Further, the molten iron desulphurization rotary stirring and blowing equipment further comprises a lower transverse moving track 6, an upper transverse moving track 10 and a transverse moving device 7, wherein the transverse moving device 7 is connected with all the main frames 9, and the transverse moving device 7 can drive all the rotary stirring and blowing devices to slide along the lower transverse moving track 6 and the upper transverse moving track 10.
This application sets up a plurality of rotatory stirring jetting devices, it slides along sideslip track 6 and last sideslip track 10 down to drive rotatory stirring jetting device through sideslip device 7, in order to realize uninterrupted desulfurization process, that is to say, after the desulfurization of a certain rotatory stirring jetting device, can move next rotatory stirring jetting device to the desulfurization station through the sideslip motion, and then realize uninterrupted desulfurization, can effectively compress non-technological time like this, reduce the temperature drop, not only can improve desulfurization efficiency greatly, and can reduce the consumption of desulfurizer, thereby can effectively reduce manufacturing cost and consumption.
Preferably, the number of the rotary stirring and blowing devices can be two, and correspondingly, the equipment is provided with two corresponding stations, namely a preparation station and a desulfurization station, and the two rotary stirring and blowing devices are respectively assembled in the preparation station and the desulfurization station.
For example, the station positioned on the left side is a preparation station, the station positioned on the right side is a desulfurization station, and after desulfurization of the rotary stirring and blowing device positioned on the right side is finished, the rotary stirring and blowing device positioned on the left side preparation station can be moved to the desulfurization station through moving to the right, so that uninterrupted desulfurization is realized; meanwhile, the rotary stirring and blowing device after desulfurization can be overhauled for further desulfurization work.
Specifically, the traverse device 7 may be configured as a traverse carriage connected to all the main frames 9, and the traverse carriage may advance or retreat along the lower traverse rail 6 and the upper traverse rail 10 by driving wheels by a motor, thereby realizing switching between the desulfurization station and the preparation station.
In order to realize the lifting movement of the lifting device 3, any one of the rotary stirring and blowing devices further comprises a lifting driving device 1, the lifting driving device 1 is used for driving the lifting device 3 to ascend and descend, and the lifting driving device 1 comprises a lifting driving motor 101 and a transmission assembly 102 connected with the lifting driving motor 101 and the lifting device 3.
Specifically, the transmission assembly 102 is a chain transmission assembly 102, the chain transmission assembly 102 includes four sets of sprocket sets and a transmission chain connected to the four sets of sprocket sets, and each set of sprocket set includes two sprockets disposed opposite to each other, so as to ensure the stability of the movement of the lifting device 3. For example, a first set of sprocket wheel set is fixed on the main shaft of the lifting driving motor 101, a second set of sprocket wheel set is fixed on the bottom of the main frame 9, a third set of sprocket wheel set is fixed on the top of the main frame 9, and a fourth set of sprocket wheel set is fixed between the first set of sprocket wheel set and the second set of sprocket wheel set.
More specifically, the lifting device 3 specifically includes a lifting frame 301, a guide wheel set 302 and a support, wherein the guide wheel set 302 is disposed on the lifting frame 301, and the support is disposed on the lifting frame 301 and connected to the chain transmission assembly 102 (specifically, to the transmission chain); the guide wheel sets 302 are symmetrically installed near the end positions of the upper and lower sides of the lifting frame 301, and the guide wheel sets 302 of the lifting device 3 can roll along the slide rail 8 on the main frame 9.
In order to realize the rotation driving of the stirring head 505, the rotation driving device 2 specifically includes a rotation driving motor 201, a speed reducer 202 and a stirring main shaft 203, wherein an output shaft of the speed reducer 202 is a hollow shaft, the stirring main shaft 203 is in key connection with the output shaft, the stirring main shaft 203 is mounted on a bearing frame 204 through a bearing assembly, and the bearing frame 204 is mounted on the lifting frame 301, so that the transmission of torque can be realized. Of course, the bearing assembly may be provided as an upper bearing set and a lower bearing set to ensure the stability of the rotation of the mixing spindle 203.
In addition, the blowing system 5 specifically includes a rotary joint 501, a first central tube 502, and a spray gun 503 with a second central tube 504 arranged inside, wherein the rotary joint 501 is arranged at the top of the stirring main shaft 203, the rotary joint 501 is connected with the stirring main shaft 203 through a flange, so that good alignment can be ensured, and the first central tube 502 is arranged inside the stirring main shaft 203 and connected with the rotary joint 501; meanwhile, the spray gun 503 is connected with the stirring main shaft 203, the spray gun 503 and the stirring main shaft 203 can be connected through the quick-change connecting device 4, the stirring head 505 is arranged at the bottom of the spray gun 503, the top of the rotary joint 501 is provided with a desulfurizer inlet 5011 for connecting a desulfurizer input pipe, and the stirring head 505 is provided with a blowing pipeline 506 communicated with the second central pipe 504 and a desulfurizer blowing outlet 507 communicated with the blowing pipeline 506. Of course, the number of the desulfurizing agent blowing outlets 507 may be one or more according to actual needs, and the present disclosure is not particularly limited thereto.
It should be noted that the quick-change attachment 4 comprises a clamping base 401 and a rotary union 402, wherein, the clamping base 401 is fixedly connected with the stirring main shaft 203, the rotary fixedly connecting component 402 is rotatably connected with the clamping base 401, the rotary fixedly connecting component 402 and the clamping base 401 can form a limit cavity for clamping the spray gun 503, the limit cavity can be matched with the structure of the spray gun 503, the rotary fixedly connecting component 402 can comprise a rotary positioning block and a wedge block for fixedly connecting the rotary positioning block and the clamping base 401, one end of the rotary positioning block is hinged with the clamping base 401 through a pin shaft, the other end of the rotary positioning block can be clamped or inserted with the clamping base 401, when the rotary positioning block is turned to be clamped or inserted with the clamping base 401, the rotary positioning block and the clamping base are fixedly connected through the wedge block, therefore, the rotary positioning block and the clamping base 401 can form a cavity capable of clamping the spray gun 503 to realize circumferential positioning of the spray gun 503. Of course, two rotary fastening assemblies 402 may be provided to ensure stability and robustness of the clamping.
Further, the quick-connection device further comprises a quick-connection assembly 403, and both ends of the quick-connection assembly 403 are respectively connected to the outlet of the hollow pipe of the stirring main shaft 203 and the inlet of the hollow pipe of the spray gun 503. The quick-change connector assembly specifically comprises a first connector, a first hose assembly, a quick-change connector, a second connector and a second hose assembly. The first connector is used for being connected with an outlet of a hollow pipeline of the stirring main shaft 203, the second connector is used for being connected with an inlet of the hollow pipeline of the spray gun 503, the first connector is connected with a first hose assembly, the second connector is connected with a second hose assembly, the first hose assembly and the second hose assembly are connected through a quick-change connector, and the quick-change connector is a standard part.
Preferably, the first joint and the second joint are taper thread joints, so that the tightness of the thread pair can be ensured, and the leakage of the desulfurizing agent can be prevented.
When the quick coupling assembly 403 is installed, the quick coupling is opened, the quick coupling assembly 403 is disassembled into an upper part and a lower part, then the tapered threaded couplings of the upper part and the lower part are screwed into the outlet of the hollow pipe of the stirring main shaft 203 and the inlet of the hollow pipe of the spray gun 503, and finally the upper part and the lower part of the quick coupling assembly 403 are assembled together through the quick coupling.
In this way, the desulfurizer enters from the desulfurizer inlet 5011 at the upper end of the rotary joint 501, enters the first central tube 502 of the stirring main shaft 203 through the rotary joint 501, then enters the second central tube 504 of the spray gun 503 through the quick-change joint assembly, and finally enters molten iron through the blowing pipeline 506 and the desulfurizer blowing outlet 507 in the stirring head 505.
In order to prevent the elevating device 3 from generating irregular vibration during the desulfurization process, the apparatus further includes a locking device 11 provided on the elevating device 3, the locking device 11 being used to clamp a guide rail provided on the main frame 9 to prevent the elevating device 3 from vibrating.
It should be noted that the number of the locking devices 11 is two, and the two locking devices 11 are respectively disposed at the upper end and the lower end of the lifting device 3. Any locking device 11 specifically comprises a first clamping block, a second clamping block and a telescopic driving mechanism connected with the first clamping block and the second clamping block, the first clamping block and the second clamping block are respectively arranged on two sides of a guide rail on the main frame 9, and the first clamping block and the second clamping block are driven by the telescopic driving mechanism to respectively move along the direction close to the guide rail so as to clamp the guide rail, so that the fixing of the lifting device 3 can be realized.
Of course, the telescopic driving mechanism may be specifically configured to include a first telescopic driving assembly and a second telescopic driving assembly, where the first telescopic driving assembly is connected to the first clamping block, and the second telescopic driving assembly is connected to the second clamping block. That is to say, through the first flexible drive assembly drive first clamp tight piece along the direction removal that is close to the guide rail, the flexible drive assembly of second drives the second and presss from both sides tight piece along the direction removal that is close to the guide rail to the realization is to the clamping effect of guide rail.
Thus, since the guide rail is fixed on the main frame 9, the first clamping block and the second clamping block respectively positioned at two sides of the guide rail are driven by the telescopic driving mechanism to clamp the guide rail during desulfurization, so as to prevent the lifting device 3 fixedly connected with the clamping mechanism from shaking.
The arrangement mode can effectively reduce irregular vibration/shake generated by the stirring head 505 connected with the lifting device 3 during molten iron stirring, can prolong the service life of the guide wheel of the lifting device 3, the stirring head 505, the lifting chain of the lifting device 3 and the like, can greatly reduce the maintenance and application cost of the blowing or rotary blowing desulfurization equipment, reduces cost, improves efficiency and has good application prospect.
The desulfurization operation flow of the molten iron desulfurization rotary stirring and blowing equipment comprises the following steps: the left stirring head 505 and the right stirring head 505 are respectively arranged at a preparation station and a desulfurization station, so that the buggy ladle reaches a preset desulfurization station, the lifting device 3 drives the stirring head 505 of the desulfurization station to descend to the upper surface of the molten iron, the rotation driving device 2 drives the stirring head 505 to rotate, at the moment, a desulfurizer starts to be blown, the stirring head 505 rotates and extends into the molten iron to reach the stirring station, the locking device 11 clamps the guide rail, the composite desulfurization stage is started, after the desulfurization is finished, the locking device 11 releases the guide rail, the stirring head 505 is lifted to the upper surface of the molten iron, and the stirring head 505 stops rotating and is lifted to a waiting station; and driving the transverse moving device 7, switching the stirring head 505 of the preparation station to the desulfurization station to prepare for next desulfurization, and enabling the stirring head 505 which finishes the desulfurization work to enter a repair stage.
The double-station, high-efficiency and long-service-life molten iron desulphurization rotary stirring and blowing equipment can effectively compress non-process time and reduce temperature drop; the equipment is stable, the desulfurization efficiency is high, the problem that the lifting device 3 and the stirring head 505 shake can be effectively solved, the desulfurization power condition is good, the utilization rate of a desulfurizing agent is high, the efficiency and the energy are high, the temperature drop of pouring molten steel is effectively reduced, the cost reduction and efficiency improvement achievement is remarkable, and the expected economic benefit generated by applying the equipment is not less than 100 ten thousand yuan per year. In addition, the method is beneficial to the improvement of the environment of a desulfurization area and has a better application prospect.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The molten iron desulfurization rotary stirring and blowing device provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are provided only to help understand the concepts of the present invention and the core concepts thereof. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110281623.0A CN113046509A (en) | 2021-03-16 | 2021-03-16 | Rotary stirring and blowing equipment for molten iron desulfurization |
Applications Claiming Priority (1)
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0112540A1 (en) * | 1982-12-21 | 1984-07-04 | Paul Wurth S.A. | Installation for guiding and changing immersion lances |
| CN101037717A (en) * | 2007-04-27 | 2007-09-19 | 武汉钢铁(集团)公司 | Molten iron spraying desulfurization spraying gun |
| JP2007314854A (en) * | 2006-05-29 | 2007-12-06 | Nippon Steel Corp | High temperature slag treatment method |
| CN105121670A (en) * | 2013-03-15 | 2015-12-02 | Esm集团有限公司 | Rotational lance drive and rotational lance injection method |
| CN105441634A (en) * | 2015-12-21 | 2016-03-30 | 山东钢铁股份有限公司 | Protection device and protection method for desulfuration rollover oil cap |
| CN107119172A (en) * | 2017-04-24 | 2017-09-01 | 鞍钢股份有限公司 | Refining rotary blowing desulfurization device and desulfurization method |
| CN108193021A (en) * | 2018-03-07 | 2018-06-22 | 上海梅山工业民用工程设计研究院有限公司 | A kind of rush-harvesting and rush-planting device for steel mill continuous desulfurization blowing desulfurization agent |
| CN110055368A (en) * | 2019-05-15 | 2019-07-26 | 中冶南方工程技术有限公司 | The agitating device of compound desulfurizing iron is stirred in a kind of blowing |
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2021
- 2021-03-16 CN CN202110281623.0A patent/CN113046509A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0112540A1 (en) * | 1982-12-21 | 1984-07-04 | Paul Wurth S.A. | Installation for guiding and changing immersion lances |
| JP2007314854A (en) * | 2006-05-29 | 2007-12-06 | Nippon Steel Corp | High temperature slag treatment method |
| CN101037717A (en) * | 2007-04-27 | 2007-09-19 | 武汉钢铁(集团)公司 | Molten iron spraying desulfurization spraying gun |
| CN105121670A (en) * | 2013-03-15 | 2015-12-02 | Esm集团有限公司 | Rotational lance drive and rotational lance injection method |
| CN105441634A (en) * | 2015-12-21 | 2016-03-30 | 山东钢铁股份有限公司 | Protection device and protection method for desulfuration rollover oil cap |
| CN107119172A (en) * | 2017-04-24 | 2017-09-01 | 鞍钢股份有限公司 | Refining rotary blowing desulfurization device and desulfurization method |
| CN108193021A (en) * | 2018-03-07 | 2018-06-22 | 上海梅山工业民用工程设计研究院有限公司 | A kind of rush-harvesting and rush-planting device for steel mill continuous desulfurization blowing desulfurization agent |
| CN110055368A (en) * | 2019-05-15 | 2019-07-26 | 中冶南方工程技术有限公司 | The agitating device of compound desulfurizing iron is stirred in a kind of blowing |
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