阅读说明：本技术 一种转炉炉口防护装置 (Converter mouth protector ) 是由 张旻 高广志 于 2019-10-29 设计创作，主要内容包括：本发明提供一种转炉炉口防护装置,包括防护罩、横梁和配重装置,横梁固接防护罩,横梁利用置于转炉上方导轨的行走小车带动防护罩相对炉口移动,利用配重装置进行横梁平衡。本发明的防护装置可在投入使用中,仅需要一名人员来控制手柄控制防护罩的运送,通过防护罩遮挡炉口,省时省力,大大降低了制造成本,提高生产效率。(The invention provides a converter mouth protection device, which comprises a protection cover, a cross beam and a counterweight device, wherein the cross beam is fixedly connected with the protection cover, the cross beam drives the protection cover to move relative to a converter mouth by utilizing a walking trolley arranged on a guide rail above a converter, and the counterweight device is utilized for balancing the cross beam. The protective device can be put into use, only one person is needed to control the handle to control the conveying of the protective cover, the furnace mouth is shielded by the protective cover, time and labor are saved, the manufacturing cost is greatly reduced, and the production efficiency is improved.)

1. A converter mouth protection device is characterized by comprising,

a protective cover;

one end of the beam is connected with a travelling trolley arranged on a guide rail above the converter, and the other end of the beam is connected with a protective cover;

and the counterweight device is arranged on the cross beam and is arranged opposite to the cross beam.

2. The converter mouth guard of claim 1, further comprising a drive mechanism for engaging the counterweight, the drive mechanism being disposed on the beam for adjusting the position of the counterweight.

3. The converter mouth guard of claim 2, wherein the drive mechanism comprises:

the two axial ends of the screw rod are respectively provided with a screw rod supporting seat fixedly connected to the cross beam, and a nut of the screw rod is fixedly connected with the counterweight device;

the speed reducing motor is arranged on the cross beam or the screw rod supporting seat, and an output shaft of the speed reducing motor is connected with the screw rod on the screw rod supporting seat through a coupler.

4. The converter mouth protecting device according to claim 1 or 3, wherein the counterweight device comprises a counterweight and a pair of mounting seats, one of the mounting seats is symmetrically mounted on both radial sides of the cross beam, and the counterweight is connected to the bottoms of the two mounting seats by fasteners.

5. The converter mouth guard of claim 1 wherein the shield is suspended from the cross-beam by a hook.

6. The converter mouth protecting device of claim 3, wherein an electric cabinet is mounted on the cross beam, and the electric cabinet contains a switch device for controlling the switch of the speed reducing motor and a controller for adjusting the parameters of the speed reducing motor.

7. The converter mouth protection device of claim 3, further comprising a first limit switch for calibrating the position of the counterweight device at the lead screw when the protective cover is mounted on the cross beam.

8. The converter mouth guard of claim 1, wherein the shield is comprised of a support frame connecting the cross members and a sheet laid over the support frame.

9. The converter mouth guard of claim 8, wherein the support bracket is X-shaped.

10. The converter mouth guard of claim 1, wherein: the protective cover is conical.

Technical Field

The invention belongs to the technical field of steel-making machinery, and relates to a converter mouth protection device.

Background

During the repair period of the steel converter, the masonry of the furnace bricks and the repair of the vaporization flue are carried out synchronously. After the converter is built by laying bricks or stones, the gasification flue densely arranges the water test work, probably have debris or water to fall into the converter, can cause the influence to the converter that has just built by laying bricks or stones like this, in order to prevent water in advance or other objects fall into the converter, prior art covers the various steel tile for constructor in the fire door top, remove the various steel tile again after the gasification flue water test, the various steel tile generally can be thrown away because of the damage, this operation process belongs to high altitude construction, and is very dangerous, and it is very inconvenient to operate.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a converter mouth protection device, which is used to solve the problem of blocking the impurities or water generated during the dense arrangement of water in the gasification flue by manually laying color steel tiles.

To achieve the above and other related objects, the present invention provides a converter mouth guard, comprising,

a protective cover;

one end of the beam is connected with a travelling trolley arranged on a guide rail above the converter, and the other end of the beam is connected with a protective cover;

and the counterweight device is arranged on the cross beam and is arranged opposite to the cross beam.

In an embodiment of the invention, the protection device further includes a driving mechanism sleeved on the counterweight device, and the driving mechanism is disposed on the cross beam to adjust the position of the counterweight device.

In an embodiment of the present invention, the driving mechanism includes:

the two axial ends of the screw rod are respectively provided with a screw rod supporting seat fixedly connected to the cross beam, and a nut of the screw rod is fixedly connected with the counterweight device;

the speed reducing motor is arranged on the cross beam or the screw rod supporting seat, and an output shaft of the speed reducing motor is connected with the screw rod on the screw rod supporting seat through a coupler.

In an embodiment of the invention, the counterweight device includes a counterweight block and a pair of mounting seats, one of the mounting seats is symmetrically mounted on two radial sides of the cross beam, and the counterweight block is connected to the bottoms of the two mounting seats by fasteners.

In an embodiment of the invention, the protective cover is suspended from the beam by a hook.

In an embodiment of the present invention, an electric cabinet is installed on the cross beam, and the electric cabinet includes a switch device for controlling the switch of the speed reduction motor and a controller for adjusting parameters of the speed reduction motor.

In an embodiment of the invention, the protection device further includes a first limit switch for calibrating the position of the counterweight device at the lead screw when the beam is installed with the protection cover.

In an embodiment of the invention, the protective cover includes a support frame connected to the cross beam and a thin plate laid on the support frame.

In an embodiment of the present invention, the supporting frame is in an X shape.

In an embodiment of the invention, the protective cover is conical.

As mentioned above, the protective device of the invention can be put into use, only one person is needed to control the handle to control the transportation of the protective cover, the furnace mouth is shielded by the protective cover, time and labor are saved, in addition, the protective cover can be reused, compared with the method of covering color steel tiles, the manufacturing cost is greatly reduced, the production efficiency is improved, in addition, the protective cover can be used to ensure that the covering is firmer, the construction is safer, and great safe economic benefits can be brought.

Drawings

Fig. 1 is a perspective view of a protection device according to an embodiment of the invention.

Fig. 2 is a schematic structural diagram of a mounting seat of a counterweight device in the protection device of the invention.

Fig. 3 is a schematic structural diagram of a driving mechanism in the protection device of the present invention.

Fig. 4 is a schematic structural diagram of a protective cover in the protective device of the invention.

Fig. 5 is a schematic structural view of a sliding member in the protection device of the present invention.

Fig. 6 shows a side view of a slider in the guard of the present invention.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

The converter vaporization flue is one of main supporting equipment for converter steelmaking, and the equipment is used for collecting high-temperature flue gas to the maximum extent during working, bearing the highest furnace gas temperature and severe and frequent temperature changes, and simultaneously having the worst working condition and being most prone to bonding splashing steel slag. During the repair of the steel-making converter, the masonry of the furnace bricks of the converter and the vaporization flue of the converter above the converter are synchronously repaired, and meanwhile, in the assembly of the masonry or the vaporization flue of the converter, in order to conveniently lift the required materials, guide rails can be respectively arranged on the left side and the right side of the converter, walking trolleys are placed on the guide rails, and beams can be arranged between the walking trolleys for lifting the materials.

After the converter is built, dense-arrangement pipe water testing work of the vaporization flue is needed, and at the moment, in order to prevent sundries or water in the vaporization flue from falling into the converter from a converter mouth, the converter mouth of the converter needs to be protected, so that the protection device is provided for protecting the converter mouth.

Referring to fig. 1, the protection device includes a protection cover 2, a beam 1 and a counterweight device 5, one end of the beam 1 is connected to a traveling trolley disposed on a guide rail, the other end of the beam 1 is connected to the protection cover 2, the shape of the protection cover 2 is adapted to the size of a converter mouth, the protection cover is generally arranged in a circular shape, and the counterweight device 5 is mounted on one side of the beam 1 opposite to the protection cover 2 for balancing the beam 1. It should be noted that, the driving device, such as a motor, is installed on the traveling trolley, the driving device of the traveling trolley is connected with the control handle through a signal line, when the converter mouth needs to be protected, a technician drives the traveling trolley through the control handle, and the traveling trolley drives the protective cover 2 to move towards the converter through the cross beam 1 until the protective cover 2 is placed above the converter mouth.

Further, as shown in fig. 1 and 4, the shield 2 is composed of a support frame 22 connected to the beam 1 and a thin plate laid on the support frame 22, the support frame 22 is substantially x-shaped, and the support frame 22 is formed by welding a light circular tube. In order to facilitate the falling of objects on the upper part of the vaporization flue or the falling of leaked water flow into the protection cover 2 and then the falling of the leaked water flow from the protection cover 2 to the outside as soon as possible, the central point of the protection cover 2 can be protruded towards the direction of the vaporization flue to form a conical shape. The objects or water flow falling from the flue slide to the outside of the converter and the vaporization flue according to the inclination of the protective cover 2.

In this embodiment, the cross beam 1 is connected with the traveling trolley through a hoisting main beam 11. Further, as shown in fig. 1 to 3, the protection device further includes a driving mechanism disposed at the bottom of the cross beam 1, the driving mechanism is fixedly connected to the cross beam 1 and disposed near the traveling trolley, the counterweight device 5 is sleeved on the driving mechanism, and the driving mechanism adjusts the position of the counterweight device 5. Referring to fig. 3, the driving mechanism includes a speed reduction motor 41 and a lead screw 43, wherein the lead screw 43 may be, for example, a ball screw, the axial ends of the lead screw 43 are respectively connected to a lead screw support base 42 fixedly connected to the cross beam 1, the speed reduction motor 41 may be directly mounted on the cross beam 1 or fixedly connected to a lead screw support base 42, an output shaft of the speed reduction motor 41 is connected to the lead screw 43 on the lead screw support base 42 through a coupling for driving the lead screw 43 to rotate, and the counterweight device 5 is sleeved on the lead screw 43 and connected to a nut of the lead screw 43. When the protective cover 2 is used, the speed reducer is controlled to rotate according to the weight of the protective cover 2 to adjust the counterweight device 5 to be located at the position of the screw rod.

Further, as shown in fig. 2, the counterweight device 5 includes a counterweight block 50 and a pair of mounting seats 52, the mounting seats 52 are respectively mounted on two radial sides of the cross beam 1 and symmetrically arranged and connected to nuts on the lead screw 43, and the bottom of the mounting seat 52 is connected to the counterweight block 50 through fasteners such as bolts and screws. If the counterweight device 5 does not need to be adjusted in position by the driving mechanism, the mount 52 may be directly connected to the cross member 1. It should be noted that, the clamping plates 51 can be clamped on the upper and lower surfaces of the counterweight block 50, the counterweight block 50 can be fixed into a whole by using a fastener, the mounting plate is connected with one of the clamping plates 51 through a screw, the mounting plate is not directly fixedly connected with the counterweight block 50, and the counterweight block 50 can be conveniently replaced according to actual conditions.

The mounting seat 52 mainly includes a first plate 522 and a second plate 521, as shown in fig. 2, the first plate 522 and the second plate 521 are vertically disposed, the first plate 522 is used for fixedly connecting the counterweight block 50, and meanwhile, the mounting seat 52 further includes a plurality of reinforcing plates 523 connected to the first plate 522 and the second plate 521, so as to enhance the structural strength of the reinforcing plates 523 and improve the carrying capacity of the mounting seat 52.

When the speed reducing motor 41 drives the screw rod 43 to rotate, the nut on the screw rod 43 drives the mounting seat 52 to move, and because the weight of the counterweight block 50 is larger, if the gravity of the counterweight block 50 is directly applied to the screw rod 43, the rotating torque required to be applied by the speed reducing motor 41 is increased, and the power consumption of the speed reducing motor 41 is increased. Therefore, in the present embodiment, both side surfaces of the cross beam 1 are respectively formed with an inwardly recessed groove 12, as shown in fig. 6, the cross section of the cross beam 1 is formed into a substantially i-shape, and the groove 12 extends along the length direction of the cross beam 1. On the second plate 521 of the mounting seat 52 a pair of rollers 53 is mounted, which rollers 53 are adapted to the recess 12 of the cross beam 1, so that the recess 12 can guide the counterweight 5. In addition, the beam 1 is arranged above the balancing weight 50, and after the roller 53 is contacted with the groove 12, most gravity of the balancing weight 50 can be borne, so that the gravity borne by the screw rod 43 can be reduced, and the rotating torque and the power consumption of the speed reducing motor 41 can be greatly reduced.

In this embodiment, an electric cabinet 3 may be further installed on the cross beam 1, as shown in fig. 1, the electric cabinet 3 includes a switch device for controlling the on/off of the reduction motor 41 and a controller related to adjusting parameters of the reduction motor 41, and the parameters of the reduction motor 41 may be a rotation speed, a forward rotation, a reverse rotation, and the like. The controller is connected with a control handle through a signal wire, the control handle can be correspondingly provided with an adjusting piece for controlling the parameters of the speed reducing motor 41, and technicians can operate the controller through the control handle.

In this embodiment, the protection device may further include a first limit switch 15 and a second limit switch (not shown in the figure), both the first limit switch 15 and the second limit switch are installed on the beam 1, wherein the first limit switch 15 is used to calibrate a first position where the counterweight block 50 is balanced on the screw rod 43 when the protection cover 2 is provided, as shown in fig. 5, and the second limit switch is used to calibrate a second position where the counterweight block 50 is balanced on the screw rod 43 when the protection cover 2 is not provided. In particular, its limit switch may be arranged in a recess 12 of the beam 1. Wherein, first limit switch 15 and second limit switch pass through limit number connection electric cabinet 3, and the controller in the electric cabinet 3, when balancing weight 50 touched first limit switch 15 or second limit switch, then first limit switch 15 or second limit switch produce switching signal and transmit for switchgear, switchgear switching on/off gear motor 41 operation.

In the case where the protection hood 2 only protects a single-diameter furnace opening, the diameter and weight of the protection hood 2 are substantially kept unchanged, and in this case, the first limit switch 15 and the second limit switch may be fixed to the cross beam 1 together with the cross beam 1 by fasteners such as bolts and screws.

If the protection hood 2 is to be protected against different diameters of the fire door, the weight of the protection hood 2 changes, in which case the first limit switch 15 can be connected to the cross beam 1 by means of a slide. In this embodiment, a bar-shaped through hole 13 may be formed in the cross beam 1, as shown in fig. 5, specifically, the bar-shaped through hole 13 may be formed in a side wall of the groove 12 of the cross beam 1, the sliding member includes a fixing plate 14, a threaded rod 16 and a nut, wherein one end of the fixing plate 14 is fixedly connected to the first limit switch 15, the other end of the fixing plate 14 is fixedly connected to the threaded rod 16, the threaded rod 16 penetrates through the bar-shaped through hole 13 and then is sleeved with the nut, and in addition, a concave cavity for accommodating the fixing plate 14 may be formed in a side wall of the groove 12, so that the fixing plate 14 does. Simultaneously, can also be carved with the scale on bar through-hole 13, under the condition that the weight of the protection casing 2 of changing changes, through moment balance adjustment balancing weight 50 in the position of crossbeam 1, technical staff can be through the more audio-visual removal balancing weight 50 of scale.

In the embodiment, a hook 24 (as shown in fig. 4) is disposed on the protective cover 2, and the protective cover 2 is hung on the cross beam 1 by the hook 24, wherein the hook 24 may be a right-angle hook, the cross beam 1 is disposed in a gap of the hook 24, of course, the hook 24 may also be directly fixed to the cross beam 1, and a hanging ring 21 (as shown in fig. 1) for hooking the hook 24 is mounted on the protective cover 2. Correspondingly, the bottom of the walking trolley is connected with a lifting hook through a chain, and meanwhile, a through hole 111 for hanging the lifting hook is formed in the hoisting main beam 11. When needing to protect the fire door, hang protection casing 2 in crossbeam 1 through crotch 24, at this moment, utilize balancing weight 50 to carry out the counter weight, remove to the fire door top under the drive of walking dolly, the bottom of protection casing 2 has contacted the converter top this moment. Subsequently, the counter weight 50 can be driven by the speed reduction motor 41 through the lead screw 43 to move towards the side of the protection cover 2 until the beam 1 or the hanging ring 21 on the side of the protection cover 2 is pulled out from the notch of the hook 24, and meanwhile, the beam 1 is driven by the moving trolley to withdraw, so that the protection cover 2 is separated from the hook 24.

After the protection is finished, the walking trolley can drive the cross beam 1 again to hook the hook 24 of the lifting main beam 11 of the protective cover 2, and the protective cover 2 is removed from the furnace mouth.

Because the protection casing 2 has certain weight, if when directly being connected with protection casing 2 on crossbeam 1, easily damage crossbeam 1 surface, if directly change crossbeam 1 this moment to increased manufacturing cost, and maintenance intensity, can be in this embodiment at the tip rigid coupling of crossbeam 1 an extension rod 6 (like figure 4), the available fasteners such as bolt of extension rod 6 connect crossbeam 1, wherein still can accompany the blotter between extension rod 6 and crossbeam 1, this blotter can adopt elastic material such as rubber, plastics.

Further, a stopper 23 may be provided at the cantilever end of the extension rod 6, as shown in fig. 4, and the stopper 23 is used for calibrating the installation position of the shield 2 in the case that the hook 24 is provided on the shield 2.

The working principle of the protection device of fig. 1 is explained here.

After the converter is built and constructed, before the vaporization flue dense-arrangement pipe water testing work is carried out, the beam 1 is hung on a travelling trolley on a guide rail above the converter by using a lifting hook, the protective cover 2 with the corresponding diameter is selected according to the diameter of a converter mouth, and the position of the balancing weight 50 is adjusted by the speed reduction motor 41 through the screw rod 43 according to the weight and the moment balance of the protective cover 2, so that the balance of the beam 1 is ensured. The technical personnel control the vehicle to move towards the furnace mouth along the guide rail through the control handle of the travelling crane trolley until the protective cover 2 is arranged above the furnace mouth, and at the moment, the bottom of the protective cover 2 contacts the top end of the converter. Subsequently, the technician can use the control handle to control the speed reduction motor 41, and drive the counterweight block 50 to move towards the side of the protection cover 2 until the beam 1 on the side of the protection cover 2 is separated from the gap of the hook 24, and at the same time, drive the beam 1 to withdraw by using the mobile trolley, so that the protection cover 2 is separated from the hook 24.

The protective device can be put into use, only one person is needed to control the handle to control the conveying of the protective cover 2, the furnace mouth is shielded by the protective cover 2, time and labor are saved, in addition, the protective cover 2 can be repeatedly used, compared with the method of covering color steel tiles, the manufacturing cost is greatly reduced, the production efficiency is improved, in addition, the protective cover 2 can be used for ensuring that the covering is firmer, the construction is safer, and great safe economic benefits can be brought.

In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.