210T converter spring plate independent replacement structure

Abstract

The utility model relates to the technical field of converter spring plate replacement, in particular to a 210T converter spring plate independent replacement structure which comprises a backing ring, a fixed end bearing seat and a free end bearing seat are symmetrically fixed on the outer side of the backing ring respectively, a furnace body is arranged on the inner side of the backing ring, and a vertical suspension device is connected between the backing ring and the furnace body. A tail end rotating connector is arranged on one side of the free end bearing seat, a tilting mechanism is arranged on one side of the fixed end bearing seat, a buggy ladle is arranged below the furnace body, an empty steel ladle is placed above the buggy ladle in a limiting mode, a steel plate is placed at the top end of the empty steel ladle, and a plurality of jacking steel tools and jacks are arranged between the upper side of the steel plate and the furnace body. The spring plate device solves the problems that an existing spring plate device is generally replaced by eight sets of whole bodies, and the spring plate device has the advantages that the stress state of each set of spring plate after replacement can be ensured to be consistent, but the replacement operation time is long, and one set of spring plate device needs welding operation at the same time.

Description

Technical Field

[0001] This utility model relates to the field of converter spring plate replacement technology, specifically to a structure for individually replacing the spring plate of a 210T converter. Background Technology

[0002] The 210T converter body consists of the furnace body, support ring, fixed end bearing seat, free end bearing seat, tilting mechanism, and tail end rotary joint. The furnace body is connected to the support ring above using four sets of horizontal spherical support devices. The furnace body is connected to the support ring below, near the trunnion, using a set of vertical suspension devices. These vertical suspension devices, also known as spring plate flexible connection devices, are a type of force-bearing structure where spring plates are arranged in a "cage." The spring plates forming the "cage" are connected to the upper and lower supports respectively using high-strength bolts and shear sleeves. The upper and lower supports are welded to the lower part of the support ring and the lower part of the furnace shell, respectively.

[0003] The replacement of spring plate devices is usually done by replacing all 8 sets together. The advantage is that it can ensure that the stress state of each set of spring plates is consistent after replacement. However, the replacement operation takes a long time, and all 8 sets of spring plate devices need to be welded at the same time. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the replacement of existing spring plate devices generally involves replacing all 8 sets as a whole. The advantage is that it can ensure that the stress state of each set of spring plates is consistent after replacement, but the replacement operation time is long and the 8 sets of spring plate devices need to be welded at the same time.

[0005] To solve the above problems, the technical solution adopted by this utility model is a separate replacement structure for the spring plate of a 210T converter, including a support ring. A fixed end bearing seat and a free end bearing seat are symmetrically fixed on the outer side of the support ring. A furnace body is provided on the inner side of the support ring. A vertical suspension device is connected between the support ring and the furnace body. A tail end rotary joint is provided on one side of the free end bearing seat, and a tilting mechanism is provided on one side of the fixed end bearing seat. A ladle car is provided below the furnace body. An empty ladle is placed on the upper limit of the ladle car. A steel plate is placed on the top of the empty ladle. Several lifting steel fixtures and jacks are provided between the upper side of the steel plate and the furnace body.

[0006] As a further embodiment of this utility model: the lifting steel fixture is placed on the upper side of the steel plate, the jack is located above the lifting steel fixture, and the top of the jack abuts against the furnace body to support the furnace body, thereby enabling the replacement of the vertical suspension device.

[0007] As a further embodiment of this utility model: a number of lifting steel fixtures and four jacks are provided, evenly distributed on the upper side of the steel plate near the edge, so as to make the furnace body evenly stressed.

[0008] As a further embodiment of this invention, the tilting mechanism is electrically connected to an external power source.

[0009] Compared with the prior art, the advantages of this utility model are as follows: This application involves inverting the furnace body to ensure that the stress state of the individually welded spring plate device is consistent with the stress state of its corresponding set of spring plates, and then positioning and welding the spring plates. Welding a set of spring plate devices separately greatly saves operation time and reduces the investment of spare parts and human resources. After more than two years of online testing, the usage effect is good. Attached Figure Description

[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0011] Figure 1 This is a front view of the overall structure of a separate replacement structure for the spring plate of a 210T converter according to this utility model.

[0012] In the attached image:

[0013] 1. Furnace body; 2. Support ring; 3. Vertical suspension device; 4. Fixed end bearing seat; 5. Tilting mechanism; 6. Jack; 7. Lifting steel fixture; 8. Empty ladle; 9. Ladle car; 10. Steel plate; 11. Tail end rotary joint; 12. Free end bearing seat. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0016] Combined with appendix Figure 1 It can be seen that the ring includes a support ring 2, and a fixed end bearing seat 4 and a free end bearing seat 12 are symmetrically fixed on the outer side of the support ring 2. The furnace body 1 is provided on the inner side of the support ring 2. A vertical suspension device 3 is connected between the support ring 2 and the furnace body 1. A tail end rotary joint 11 is provided on one side of the free end bearing seat 12. A tilting mechanism 5 is provided on one side of the fixed end bearing seat 4. The tilting mechanism 5 is electrically connected to an external power source.

[0017] A ladle car 9 is located below the furnace body 1. An empty ladle 8 is placed above the ladle car 9. A steel plate 10 is placed on top of the empty ladle 8. Four lifting steel fixtures 7 and jacks 6 are arranged between the upper side of the steel plate 10 and the furnace body 1. They are evenly distributed on the upper side of the steel plate 10 near the edge to facilitate even force distribution on the furnace body 1. The lifting steel fixtures 7 are placed on the upper side of the steel plate 10, and the jacks 6 are located above the lifting steel fixtures 7. The top of the jacks 6 abuts against the furnace body 1 to support the furnace body 1, thereby facilitating the replacement of the vertical suspension device 3.

[0018] The working principle of this application is as follows: At each end of the support ring 2, there is a fixed-end bearing seat 4 and a free-end bearing seat 12 serving as fulcrums. The furnace body 1 is rotated 180° via a tilting mechanism 5 suspended on the trunnion of the support ring 2, making the furnace body 1 either inverted or upright. An empty ladle 8 is then hoisted and loaded onto a ladle car 9. A steel plate 10, a lifting steel fixture 7, and a jack 6 are placed on the empty ladle 8. The ladle car 9 is driven to travel directly below the converter 1. Four sets of lifting steel fixtures are installed on the steel plate 10 on the upper surface of the empty ladle 8. Tooling 7 and four sets of jacks 6 are used to lift synchronously so that the support ring 2 does not bear the weight of the furnace body 1. The deformation and deformation trend of the spring plate in each set of vertical suspension device 3 are measured. Based on the measurement data, the lifting output force of a single jack 6 is adjusted so that the force trend of the spring plate device to be replaced is consistent with that of the vertical suspension device 3 at the corresponding position. Then, the spring plate device to be replaced is positioned, and the vertical suspension device 3 to be replaced is welded according to the welding requirements to meet the technical requirements for the individual replacement of the vertical suspension device 3.

[0019] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A 210T converter spring plate individual replacement structure, characterized by: The application relates to a vertical suspension device for a ladle furnace, which comprises a supporting ring (2), a fixed end bearing seat (4) and a free end bearing seat (12) symmetrically fixed outside the supporting ring (2), a furnace body (1) arranged inside the supporting ring (2), a vertical suspension device (3) connected between the supporting ring (2) and the furnace body (1), a tail end rotary joint (11) arranged on one side of the free end bearing seat (12), a tilting mechanism (5) arranged on one side of the fixed end bearing seat (4), a ladle car (9) arranged below the furnace body (1), an empty ladle (8) placed on the ladle car (9) in a limited manner, a steel plate (10) placed on the top end of the empty ladle (8), and a plurality of lifting steel fixtures (7) and jacks (6) arranged between the upper side of the steel plate (10) and the furnace body (1).

2. The 210T converter spring plate individual replacement structure according to claim 1, characterized in that: The lifting steel fixtures (7) are placed on the upper side of the steel plate (10), the jacks (6) are located above the lifting steel fixtures (7), and the top end of the jack (6) abuts against the furnace body (1).

3. The 210T converter spring plate individual replacement structure according to claim 1, characterized in that: The plurality of lifting steel fixtures (7) and jacks (6) are four in number and are evenly distributed on the upper side of the steel plate (10) close to the edges.

4. The 210T converter spring plate individual replacement structure according to claim 1, characterized in that: The tilting mechanism (5) is electrically connected with an external power supply.

Images