CN211420219U

CN211420219U - RH refining top-blown structure and RH refining system

Info

Publication number: CN211420219U
Application number: CN201922338734.1U
Authority: CN
Inventors: 吴洋子
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-04
Anticipated expiration: 2029-12-24

Abstract

The utility model relates to a refined top-blown structure of RH, including top rifle, rotary mechanism and elevating system, rotary mechanism includes revolving frame and rotation driving unit, and elevating system is including arranging the lift track on revolving frame, setting up the walking unit on the lift track and arranging the lift drive unit on structural platform, and the lift drive unit passes through the drive unit and is connected with the walking unit, and the top rifle is installed on the walking unit. In addition, the RH refining system adopting the RH refining top blowing structure is also provided. The lifting driving unit is arranged on the structural platform, the rotating frame does not need to bear the load of the lifting driving device, the device layout on the rotating frame can be effectively simplified, the weight of the rotating frame is light, the device is convenient to transport, install and maintain, and the design cost of the rotating frame and the structural platform can be remarkably reduced; the rotary motion of the rotary frame is more stable, and the driving and positioning of the top gun are more accurate.

Description

RH refining top-blown structure and RH refining system

Technical Field

The utility model belongs to the technical field of metallurgical equipment, concretely relates to RH refining top-blown structure and adopt RH refining system of this RH refining top-blown structure.

Background

The RH refining process is a metallurgical method which utilizes the pressure difference between a vacuum chamber and the atmosphere to lift the molten steel to the vacuum chamber, and performs bottom argon blowing and top oxygen blowing to ensure that the molten steel is circularly dehydrogenated and decarburized. The top lance is equipment for blowing oxygen into molten steel during cyclic treatment, the top lance is mainly descended to be inserted into a vacuum chamber for blowing oxygen in a smelting process, and is lifted to the top of the vacuum chamber after the oxygen blowing operation is finished, at present, part of enterprises also set up a top lance rotating mechanism to ensure that the top lance is rotated and switched between a working position and a standby position, and the equipment layout of an RH station can be facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a RH refines top-blown structure and adopts this RH to refine RH refining system of top-blown structure can solve prior art's partial defect at least.

The utility model relates to a RH refining top-blown structure, including the top rifle, still include rotary mechanism and elevating system, rotary mechanism including articulated install in the runing frame on the structure platform and install in on the structure platform and with the rotation driving unit that the runing frame connects, elevating system including arrange in lifting track on the runing frame, set up in last walking unit of lifting track and arrange in the last lift driving unit of structure platform, lift driving unit pass through the drive unit with the walking unit is connected, the top rifle install in on the walking unit.

As one embodiment, the transmission unit comprises a traction rope and a diverting pulley block arranged on the rotating frame, the axis of each diverting pulley is parallel to the horizontal direction, at least one diverting pulley is arranged on the same horizontal plane with the lifting driving unit, and the traction rope is led out from the lifting driving unit horizontally and passes through the diverting pulley block and then vertically extends to be connected with the walking unit.

As an embodiment, the transmission unit further comprises a set of tensioning pulleys, each of which is arranged in the same horizontal plane as the lifting drive unit and has an axis parallel to the vertical direction.

As an embodiment, part of the tensioning pulleys are arranged on the structural platform and the remaining tensioning pulleys are arranged on the rotating frame.

In one embodiment, the transmission unit further includes a wire rope drum connected to an output end of the lifting drive unit, and the traction rope is wound around the wire rope drum and fixed by a clamp bolt.

As one embodiment, the structure platform comprises an upper platform and a lower platform, and the lifting driving unit is arranged on the lower platform.

As an embodiment, the diverting pulley set comprises an upper diverting pulley arranged on top of the rotating frame and a lower diverting pulley located below the upper diverting pulley, the lower diverting pulley being arranged level with the lifting drive unit.

As one embodiment, the structural platform comprises an upper platform and a lower platform, the rotating frames are respectively hinged with the two platforms, and the two sets of hinged shafts are coaxially arranged.

As one embodiment, the lifting driving unit includes a lifting driving motor, a brake, and a speed reducer, and the transmission unit is connected to the speed reducer.

The utility model discloses still relate to a RH refining system, including real empty room and structural platform, still include as above the RH refine top blow structure, the top rifle have insert extremely work position in the real empty room with promote to the standby position of real empty room top.

The utility model discloses following beneficial effect has at least:

the utility model provides a structure is blown on top in RH refining, only arrange lift track and walking unit on revolving frame, and arrange the lift drive unit on structural platform, not rotate together along with revolving frame, therefore revolving frame need not to bear lift drive equipment's load, compare in current RH top-blown arrangement mode, the equipment overall arrangement on the revolving frame can be retrencied effectively to this embodiment, revolving frame's weight is also comparatively light, loads such as the moment of torsion that structural platform bore reduce thereupon, the transportation of the equipment of not only being convenient for, installation and maintenance, moreover revolving frame and structural platform's design cost also can show the ground and reduce. In addition, the rotary motion of the rotary frame is more stable, the running energy consumption of the rotary driving equipment can be reduced, the driving and positioning of the top lance are more accurate, and the corresponding speed is higher, so that the working efficiency and the molten steel refining effect can be improved.

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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic front view of an RH refining top-blown structure provided by an embodiment of the present invention;

fig. 2 is a schematic top view of an RH refining top-blowing structure (including two states of a working position and a standby position) provided in an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention are described below clearly and completely, 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.

As shown in fig. 1 and fig. 2, the embodiment of the utility model provides a RH refining top-blown structure, including top rifle 4, rotary mechanism and elevating system, rotary mechanism including articulated install in the revolving frame 2 on structural platform 1 and install in on structural platform 1 and with the rotary driving unit that revolving frame 2 connects, elevating system including arrange in lifting track on revolving frame 2, set up in walking unit 5 on the lifting track and arrange in the last lifting driving unit 64 of structural platform 1, lifting driving unit 64 through the drive unit with walking unit 5 connects, top rifle 4 install in on walking unit 5.

The top lance 4 and the rotating frame 2 are conventional devices in the art, and the above-mentioned rotating driving unit may also adopt a rotating driving device conventional in the art, and the detailed structure is not described herein. The lifting track can be formed by welding profile steel on the rotating frame 2, the walking unit 5 generally adopts a lifting trolley, the operation is stable, and the top lance 4 can be conveniently and reliably fixedly installed. Of course, other forms of walking devices are also suitable for use in this embodiment.

The above-mentioned structural platform 1 is generally the existing structural platform 1 in a workshop, and of course, the steel structural platform 1 for arranging the RH top lance 4 can be additionally erected according to actual conditions on site, and obviously, the design elevation of the structural platform 1 needs to be adapted to the action range of the top lance 4. For the installation of the rotating frame 2 on the structure platform 1, the conventional hinge form in the field can be adopted, in the preferred scheme provided by this embodiment, as shown in fig. 1, the structure platform 1 includes an upper layer platform and a lower layer platform, the rotating frame 2 is respectively hinged with the two layers of platforms and two sets of hinge shafts 3 are coaxially arranged, a double-hinge-point structure is adopted, the stability of the rotating motion of the rotating frame 2 can be ensured, meanwhile, the rotating frame 2 forms a double-fulcrum support, the supporting effect of the rotating frame 2 can be ensured, and especially, under the condition that a series of lifting transmission devices and top guns 4 are arranged on the rotating frame 2. It will be understood that the axis of the above-mentioned articulated shaft 3 is parallel to the vertical, so that the rotating frame 2 rotates in the horizontal plane (i.e. around the vertical axis of rotation), bringing the top lance 4 to switch between the working position and the standby position.

In the RH refined top-blowing structure provided by this embodiment, only the lifting rail and the traveling unit 5 are disposed on the rotating frame 2, and the lifting driving unit 64 is disposed on the structure platform 1 and does not rotate together with the rotating frame 2, so that the rotating frame 2 does not need to bear the load of the lifting driving device, compared with the existing RH top-blowing arrangement mode, the RH refined top-blowing structure provided by this embodiment can effectively simplify the layout of the devices on the rotating frame 2, the weight of the rotating frame 2 is light, the loads such as the torque borne by the structure platform 1 are reduced, which not only facilitates the transportation, installation and maintenance of the devices, but also significantly reduces the design costs of the rotating frame 2 and the structure platform 1. In addition, the rotary motion of the rotary frame 2 is more stable, the running energy consumption of the rotary driving equipment can be reduced, the driving and positioning of the top lance 4 are more accurate, and the corresponding speed is higher, so that the operation efficiency and the molten steel refining effect can be improved.

In a further refinement of the above-described embodiment, as shown in fig. 1 and 2, the transmission unit comprises a traction rope (not shown) and a diverting pulley set arranged on the rotating frame 2, the axis of each diverting pulley 61 is parallel to the horizontal direction, at least one diverting pulley 61 is arranged in the same horizontal plane as the lifting drive unit 64, and the traction rope is led out from the lifting drive unit 64 horizontally and extends vertically to be connected with the traveling unit 5 after passing through the diverting pulley set. The traction rope is generally a steel wire rope; the initial state when it is drawn out from the output end of the lifting drive unit 64 is the horizontal state, that is, the pulling force direction is the horizontal direction, and the initial state becomes the vertical state after winding through the steering pulley block, that is, the pulling force direction is the vertical upward direction, thereby applying force to the walking unit 5. It can be seen that, by the arrangement of the above-mentioned steering pulley block, the arrangement of the lifting drive unit 64 on the structure platform 1 can be facilitated on the premise that the lifting drive of the walking unit 5 is satisfied.

In the above structure using the hauling cable, the transmission unit further includes a wire rope reel 63, the wire rope reel 63 is connected to an output end of the lifting drive unit 64, the hauling cable is wound on the wire rope reel 63 and fixed by a pressing plate bolt, the lifting drive unit 64 drives the wire rope reel 63 to rotate forward or backward, the hauling cable is wound and released, and the traveling unit 5 is thereby promoted to ascend or descend. In one embodiment, the lifting driving unit 64 employs a motor, that is, the lifting driving unit 64 includes a lifting driving motor; the lifting driving motor further preferably integrates a brake and a speed reducer, and the transmission unit is connected with the speed reducer. The three-in-one motor consisting of the motor, the brake and the speed reducer is conventional driving equipment, and the specific structure is not described herein. Further preferably, the elevation driving motor is further provided with an encoder for accurately controlling the elevation stroke of the traveling unit 5 or the top gun 4.

The structure of the transmission unit is further optimized, as shown in fig. 1 and fig. 2, the diverting pulley set comprises an upper diverting pulley 61 arranged at the top of the rotating frame 2 and a lower diverting pulley 61 positioned below the upper diverting pulley 61, the lower diverting pulley 61 and the lifting driving unit 64 are arranged in the same horizontal plane, and the arrangement structure of the diverting pulley 61 is convenient for the arrangement of the lifting driving unit 64 on the structure platform 1, and is particularly suitable for the condition that the top of the rotating frame 2 is higher than the structure platform 1.

The structure of the transmission unit is further optimized, and as shown in fig. 1 and fig. 2, the transmission unit further comprises a tensioning pulley block, each tensioning pulley 62 is arranged in the same horizontal plane with the lifting drive unit 64, and the axes of the tensioning pulleys are parallel to the vertical direction. Through setting up the tensioning pulley group, can ensure to be in the tensioning state all the time at 2 rotary motion in-process haulage ropes of revolving frame, avoid leading to top rifle 4 to produce abnormal action because of the unstability state of haulage rope to can guarantee that the pulling force direction of haulage rope is the horizontal direction all the time before first diverting pulley 61, be convenient for to the stable accurate control of top rifle 4 lift stroke. Thus, it is preferred that the tensioning pulley set is arranged between the lifting drive unit 64 and the first diverting pulley 61 arranged horizontally, and the subsequent diverting pulley set can also take up the tensioning of the traction rope while the diverting of the traction rope is completed. In one embodiment, as shown in fig. 1 and 2, a part of the tension pulleys 62 are arranged on the structural platform 1, and the rest of the tension pulleys 62 are arranged on the rotating frame 2, so that the above effect of tensioning the traction ropes can be further ensured; in this embodiment, the tensioning pulley block has 3 tensioning pulleys 62, two of which are disposed on the structural platform 1 and the other of which is disposed on the revolving frame 2, so as to minimize the number of devices on the revolving frame 2 while ensuring the tensioning effect on the traction rope.

In the embodiment where the above-described structure platform 1 includes the upper stage and the lower stage, as shown in fig. 1, the above-described elevation driving unit 64 is preferably disposed on the lower stage.

In another embodiment, one end of the traction rope is connected to the traveling unit 5, the other end of the traction rope is fixed with a movable pulley, a pulley guide rail is correspondingly arranged on the structure platform 1, the movable pulley is slidably arranged on the pulley guide rail through a pulley bracket, the lifting driving unit 64 comprises a power rope, a fixed seat and a lifting driving member, one end of the power rope is fixed on the fixed seat and is connected with the output end of the lifting driving member after passing through the movable pulley, the lifting driving member can adopt the structure of the motor and the steel wire rope winding drum 63, and can also adopt conventional linear driving equipment such as an air cylinder and a hydraulic cylinder. Based on the labor-saving characteristic of the movable pulley, the acting force required to be output by the lifting driving unit 64 is smaller (1/2 only adopting a fixed pulley block), so that the equipment selection of the lifting driving unit 64 is smaller, the load required to be borne by the structure platform 1 is smaller, and the design cost of the structure platform 1 is reduced.

Of course, the transmission unit is not limited to the above, and a conventional transmission structure such as a combination structure of a sprocket chain is also applicable to the present embodiment.

The embodiment of the utility model provides a still relate to a RH refining system, including real empty room and structure platform 1, still include as above RH refining top-blown structure, top gun 4 have insert extremely work position in the real empty room with promote to the standby position of real empty room top. The relative arrangement of the vacuum chamber, the structure platform 1, the top lance 4 and the rotating frame 2 is conventional in the art and will not be described herein.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a RH refines top-blown structure, includes top gun, its characterized in that: still include rotary mechanism and elevating system, rotary mechanism including articulated install the revolving frame on the structure platform and install in on the structure platform and with the rotation driving unit that revolving frame connects, elevating system including arrange in last lift track of revolving frame, set up in walking unit on the lift track and arrange in lift driving unit on the structure platform, lift driving unit pass through the drive unit with walking unit connects, the rifle of top install in on the walking unit.

2. The RH refined top blowing structure of claim 1, wherein: the transmission unit comprises a traction rope and a steering pulley block arranged on the rotating frame, the axis of each steering pulley is parallel to the horizontal direction, at least one steering pulley and the lifting driving unit are arranged on the same horizontal plane, the traction rope is horizontally led out from the lifting driving unit and passes through the steering pulley block in a parallel mode, and the traction rope vertically extends to and is connected with the walking unit.

3. The RH refined top blowing structure of claim 2, wherein: the transmission unit further comprises tensioning pulley blocks, each tensioning pulley block and the lifting driving unit are arranged on the same horizontal plane, and the axes of the tensioning pulley blocks are parallel to the vertical direction.

4. The RH refined top blowing structure of claim 3, wherein: part of the tensioning pulleys are arranged on the structural platform and the rest of the tensioning pulleys are arranged on the rotating frame.

5. The RH refined top blowing structure of claim 3, wherein: the transmission unit further comprises a steel wire rope winding drum, the steel wire rope winding drum is connected with the output end of the lifting driving unit, and the traction rope is wound on the steel wire rope winding drum and fixed through a pressing plate bolt.

6. The RH refined top blowing structure of claim 2, wherein: the structure platform comprises an upper platform and a lower platform, and the lifting driving unit is arranged on the lower platform.

7. The RH refined top blowing structure of claim 2, wherein: the steering pulley block comprises an upper steering pulley arranged at the top of the rotating frame and a lower steering pulley positioned below the upper steering pulley, and the lower steering pulley and the lifting driving unit are arranged on the same horizontal plane.

8. The RH refined top blowing structure of claim 1, wherein: the structure platform comprises an upper layer platform and a lower layer platform, wherein the rotating frame is hinged with the two layers of platforms respectively, and two groups of hinged shafts are coaxially arranged.

9. The RH refined top blowing structure of claim 1, wherein: the lifting driving unit comprises a lifting driving motor, a brake and a speed reducer, and the transmission unit is connected with the speed reducer.

10. An RH refining system, which comprises a vacuum chamber and a structural platform, and is characterized in that: further comprising an RH refining top blowing configuration as defined in any one of claims 1 to 9, said top lance having a work station inserted into said vacuum chamber and a standby station lifted above said vacuum chamber.