High-safety lifting appliance special for movable furnace bottom

By designing a high-safety lifting tool specifically for the converter bottom, and utilizing a combination of the lifting tool's crossbeam support and limiting lifting points, the problem of asymmetrical swaying of the converter bottom during transport was solved, achieving stable lifting and safe transportation of the converter bottom.

CN223561094UActive Publication Date: 2025-11-18PRIMETALS TECH (CHINA) LTD
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Patent Information

Application Number
CN202521778815.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-21
Publication Date
2025-11-18
Estimated Expiration
2035-08-21

AI Technical Summary

Technical Problem

In existing technologies, the converter bottom is prone to asymmetrical shaking during the moving process, which causes the refractory bricks to scatter and deform, making it impossible to install them stably into the converter and affecting hoisting efficiency and safety.

Method used

A high-safety lifting device for a live furnace bottom has been designed, comprising a furnace bottom plate, a main body mechanism, a connecting mechanism, and a lifting device mechanism. Through the combination of the lifting device beam support and the limiting lifting points, the stable connection between the lifting chain and the furnace bottom plate is ensured, and the coaxiality between the lifting device mechanism and the main body mechanism is maintained, thus achieving stable lifting.

Benefits of technology

This method enables stable hoisting and transportation of the converter bottom, avoiding the scattered deformation of refractory bricks and improving hoisting efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223561094U_ABST
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Abstract

The utility model belongs to the technical field of lifting appliances, and provides a special high-safety lifting appliance for a movable furnace bottom, which comprises a furnace bottom plate, a lifting appliance, a lifting appliance base plate and a lifting appliance base plate, the main body mechanism is arranged on the furnace bottom plate; the connecting mechanism is connected to the furnace bottom plate and used for hoisting connection of the furnace bottom plate and the main body mechanism; the lifting appliance mechanism is arranged on the connecting mechanism and used for being connected with a lifting appliance for lifting; the workshop lifting hook can be stably connected to the lifting appliance cross beam support through the multiple limiting lifting points, then the multiple lifting appliance connecting frames are fixedly connected to the furnace bottom plate, the multiple lifting chains are matched with the multiple lifting appliance connecting frames to stably connect the lifting appliance cross beam support and the furnace bottom plate, and the lifting appliance cross beam support and the furnace bottom plate can be stably connected while light weight can be guaranteed through the lifting chains; and finally, the centers of the lifting appliance mechanism, the converter bottom plate and the main body mechanism are located on the same vertical line through calculation, so that the converter bottom is stably lifted to a transport vehicle.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of lifting appliance, concretely is a kind of high safety live furnace bottom special lifting appliance. BACKGROUND

[0002] Converter bottom is the key component of converter body, located at the bottom of converter, directly withstand high temperature, weight and chemical corrosion of slag, molten steel, its structure and design have important influence on the life and smelting efficiency of converter;

[0003] However, the weight of the built live furnace bottom is heavy, for the bottom of large converter, the weight of furnace bottom plate plus refractory brick is heavier, up to dozens or even hundreds of tons, and the refractory bricks after masonry are stacked together only by the power of glue, cannot produce asymmetric shaking in the transportation process, shaking will lead to refractory brick scattering deformation, so as to be unable to be installed into converter.

[0004] Therefore, the person skilled in the art proposes a kind of high safety live furnace bottom special lifting appliance to solve the problem proposed in the background art. INVENTION CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a kind of high safety live furnace bottom special lifting appliance to solve the problem of inconvenient moving of converter bottom in prior art.

[0006] A kind of high safety live furnace bottom special lifting appliance, including: furnace bottom plate, for the converter bottom lifting appliance connection hoisting;Main body mechanism, is set on furnace bottom plate;Connecting mechanism is connected on furnace bottom plate, for furnace bottom plate and main body mechanism hoisting connection;Lifting appliance mechanism, is set on connecting mechanism, for connecting lifting appliance hoisting use.

[0007] Preferably, the main body mechanism includes a main body frame fixedly arranged on the top of the furnace bottom plate;A plurality of furnace bottom legs are fixedly arranged on the bottom of the furnace bottom plate, and a furnace bottom tool table is fixedly arranged on the bottom of the furnace bottom plate.

[0008] Preferably, the connecting mechanism includes a plurality of lifting appliance connecting frames fixedly arranged on the furnace bottom plate, and a lifting chain is rotatably arranged on the lifting appliance connecting frame;The furnace bottom plate is provided with a lifting appliance crossbeam support through a plurality of lifting appliance connecting frames and lifting chains.

[0009] Preferably, the connecting mechanism further includes a lifting appliance connecting plate fixed to the lifting appliance connecting frame, a connecting bolt is screwed on the lifting appliance connecting plate;The lifting appliance connecting frame is fixedly arranged on the furnace bottom plate through the lifting appliance connecting plate and connecting bolt.

[0010] Preferably, the lifting tool mechanism comprises a plurality of connecting pins I rotatably arranged on a lifting tool beam support, and the lifting chains are rotatably arranged at the connecting pins I; a plurality of limiting lifting points are fixedly arranged on the lifting tool beam support.

[0011] The utility model has the advantages of the following:

[0012] The utility model discloses a lifting tool beam support is arranged, and a plurality of limiting lifting points are fixedly connected on the lifting tool beam support, so that the workshop lifting hook can be stably connected to the lifting tool beam support through the plurality of limiting lifting points, and then the plurality of lifting tool connecting frames are fixedly connected to the furnace bottom plate, so that the plurality of lifting chains cooperate with the plurality of lifting tool connecting frames to stably connect the lifting tool beam support and the furnace bottom plate, the lifting chains can ensure light weight and also effectively ensure strength, and finally the lifting tool mechanism, the furnace bottom plate and the main body mechanism are on the same vertical line through calculation, so that the converter furnace bottom is stably lifted to the transport vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a converter furnace bottom lifting structure of the utility model;

[0014] Figure 2 It is a converter furnace bottom lifting connecting structure of the utility model;

[0015] Figure 3 It is a lifting tool connecting frame structure of the utility model;

[0016] Figure 4 It is a lifting tool beam support structure of the utility model.

[0017] In the drawings:

[0018] 1, furnace bottom plate;2, furnace bottom support leg;3, furnace bottom tool table;4, limiting lifting point;5, lifting tool connecting frame;6, main body frame;7, lifting chain;8, lifting tool beam support;9, connecting pin I;10, lifting tool connecting plate;11, connecting bolt;12, connecting pin II. DETAILED DESCRIPTION

[0019] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0020] Example one:

[0021] As shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 4 As shown in the accompanying drawings:

[0022] The utility model provides a high safety special lifting appliance of live furnace bottom, include: furnace bottom board 1 for converter furnace bottom lifting appliance connection hoist, main body mechanism, set up on furnace bottom board 1, connecting mechanism, connect on furnace bottom board 1, for furnace bottom board 1 and main body mechanism hoist connection, lifting appliance mechanism, set up on connecting mechanism, for connecting lifting appliance hoist use,

[0023] Through be provided with lifting appliance crossbeam support 8, and be fixedly connected with a plurality of limit lifting points 4 on lifting appliance crossbeam support 8, make workshop lifting hook can be stably connected on lifting appliance crossbeam support 8 through a plurality of limit lifting points 4, then a plurality of lifting appliance connecting frames 5 are fixedly connected on furnace bottom board 1, make a plurality of hoisting chains 7 cooperate a plurality of lifting appliance connecting frames 5 and stably connect between lifting appliance crossbeam support 8 and furnace bottom board 1, hoisting chain 7 can ensure light weight, also can effectively guarantee strength, finally through calculation makes the center of lifting appliance mechanism and furnace bottom board 1 and main body mechanism be on the same vertical line, to this completes the converter furnace bottom stably hoist to transport car.

[0024] Reference Figure 1 And Figure 2 , main body mechanism includes furnace bottom board 1, main body frame 6, furnace bottom support leg 2 and furnace bottom tool table 3;

[0025] Through be provided with furnace bottom board 1, and be fixedly connected with main body frame 6 on furnace bottom board 1, the material of main body frame 6 is refractory material, is the material that withstands high temperature, chemical corrosion and mechanical wear in the process of converter steelmaking, and a plurality of furnace bottom support legs 2 are fixedly connected on the bottom of furnace bottom board 1, make furnace bottom board 1 and main body frame 6 can be supported and placed by a plurality of furnace bottom support legs 2 in the process of using, in addition, furnace bottom tool table 3 is fixedly connected on the bottom of furnace bottom board 1, make furnace bottom tool table 3 can quickly disassemble and replace converter furnace bottom, so that converter furnace bottom can be hoisted and moved, and the whole main body mechanism is hoisted from the masonry position to the transport car on furnace bottom board 1;

[0026] Furnace bottom tool table 3 is similar to support frame or support table function, the purpose is to support converter furnace bottom to a certain height, so that lifting appliance connecting frame 5 is clamped on furnace bottom board 1, facilitating quick disassembly and replacement operation of converter furnace bottom.

[0027] Example two:

[0028] Reference Figure 2 And Figure 3 , connecting mechanism includes lifting appliance connecting frame 5, hoisting chain 7, connecting pin two 12, lifting appliance crossbeam support 8, lifting appliance connecting plate 10 and connecting bolt 11;

[0029] By fixedly connecting a plurality of lifting tool connecting frames 5 on the furnace bottom plate 1, and rotatably connecting connecting pins two 12 on the lifting tool connecting frames 5, the lifting tool connecting frames 5 are rotatably connected with the lifting chains 7 through the connecting pins two 12, so that the furnace bottom plate 1 can be conveniently lifted and moved by the plurality of lifting tool connecting frames 5 cooperating with the plurality of lifting chains 7, and the other end of the plurality of lifting chains 7 can be rotatably connected to the lifting tool cross beam support 8, so that the lifting tool cross beam support 8 can lift and move the furnace bottom plate 1 through the plurality of lifting chains 7 cooperating with the plurality of lifting tool connecting frames 5.

[0030] At the same time, the lifting tool connecting plate 10 is fixedly connected to the lifting tool connecting frame 5, so that the lifting tool connecting frame 5 is conveniently connected with the furnace bottom plate 1 through the lifting tool connecting plate 10, and the connecting bolt 11 is screwed on the lifting tool connecting plate 10, so that the lifting tool connecting frame 5 is fixedly connected to the furnace bottom plate 1 through the lifting tool connecting plate 10 and the connecting bolt 11, so that the plurality of lifting chains 7 can complete the lifting and moving work of the furnace bottom plate 1 through the plurality of lifting tool connecting frames 5.

[0031] Reference Figure 2 , Figure 3 and Figure 4 , the lifting tool mechanism includes connecting pins one 9 and limiting lifting points 4;

[0032] By rotatably connecting a plurality of connecting pins one 9 on the lifting tool cross beam support 8, the plurality of connecting pins one 9 can be rotatably connected with the plurality of lifting chains 7, so that the plurality of lifting chains 7 can be rotatably connected to the lifting tool cross beam support 8, so that the lifting tool cross beam support 8 can complete the connecting and lifting work of the furnace bottom plate 1 through the plurality of connecting pins one 9 and the lifting chains 7 cooperating with the plurality of connecting pins two 12 and the lifting tool connecting frames 5 when lifting and moving the furnace bottom plate 1, and then moving the furnace bottom plate 1 and the main body mechanism to the transport vehicle;

[0033] At the same time, a plurality of limiting lifting points 4 are fixedly connected to the lifting tool cross beam support 8, so that the hooks in the workshop can be connected to the lifting tool cross beam support 8 through the plurality of limiting lifting points 4, and the lifting tool cross beam support 8 and the furnace bottom plate 1 connected with the plurality of lifting chains 7 and the lifting tool connecting frames 5 can be lifted and moved, the limiting lifting points 4 can ensure that the hooks in the workshop are not deviated, the lifting tool cross beam support 8 is the main force component, which ensures the strength of the lifting tool mechanism, and through calculation, the center of the lifting tool mechanism, the connecting mechanism and the main body mechanism is on the same vertical line, so that the converter bottom can be conveniently and stably lifted to the transport vehicle.

[0034] Working principle: through setting up the furnace bottom plate 1, and fixedly connecting with the main body frame 6 on the furnace bottom plate 1, the main body frame 6 is a refractory material, which is a material for bearing high temperature, chemical corrosion and mechanical wear in the converter steelmaking process, and a plurality of furnace bottom legs 2 are fixedly connected at the bottom of the furnace bottom plate 1, so that the furnace bottom plate 1 and the main body frame 6 can be supported and placed by the plurality of furnace bottom legs 2 during use, and a furnace bottom tool table 3 is fixedly connected at the bottom of the furnace bottom plate 1, so that the furnace bottom tool table 3 can be quickly disassembled and replaced with the converter furnace bottom, and a lifting tool connecting plate 10 is fixedly connected on the lifting tool connecting frame 5, so that the lifting tool connecting frame 5 is convenient for being connected with the furnace bottom plate 1 through the lifting tool connecting plate 10, and a connecting bolt 11 is screwed on the lifting tool connecting plate 10, so that the lifting tool connecting frame 5 is convenient for being fixedly connected on the furnace bottom plate 1 through the lifting tool connecting plate 10 and the connecting bolt 11, so that the plurality of lifting chains 7 can complete the lifting and moving operation of the furnace bottom plate 1 through the plurality of lifting tool connecting frames 5, and then the lifting tool cross beam support 8 and the furnace bottom plate 1 connected with the plurality of lifting chains 7 and the lifting tool connecting frame 5 are lifted and moved, the limiting lifting point 4 can ensure that the hook of the workshop is not deviated, the lifting tool cross beam support 8 is a main stress component, which ensures the strength of the lifting tool mechanism, and the center of the lifting tool mechanism, the connecting mechanism and the main mechanism is on the same vertical line through calculation, so that the converter furnace bottom can be conveniently and stably lifted onto the transport vehicle.

[0035] The embodiments of the utility model are given for example and description, although the embodiments of the utility model have been shown and described above, it is understood that the above-mentioned embodiments are exemplary, and cannot be understood as the limitation of the utility model, and the ordinary skilled person in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

[0036] Finally, the following points should be noted: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0037] Secondly: the utility model discloses the embodiment of the drawings, only relates to the structure involved in the embodiment of the disclosure, other structures can refer to the usual design, in the case of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0038] Finally: the above only for the preferred embodiments of the present application have, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the scope of protection of the present application;

[0039] The above are the preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application, therefore: any equivalent changes made in accordance with the structure, shape, principle of the present application, should be covered within the scope of protection of the present application.

Claims

1. A high safety special lifting appliance for live hearth bottom, characterized in that, Include: The furnace bottom plate (1) is used for the converter furnace bottom to connect the lifting device hoisting; Main mechanism, provided on the furnace bottom plate (1); Connecting mechanism, connected to the furnace bottom plate (1), used for furnace bottom plate (1) and main mechanism hoisting connection; Lifting device mechanism, provided on the connecting mechanism, used for connecting the lifting device for hoisting use.

2. The high safety special lifting appliance for live-hearth according to claim 1, characterized in that: The main mechanism includes a main frame (6) fixedly arranged on the top of the furnace bottom plate (1); The bottom of the furnace bottom plate (1) is fixedly provided with a plurality of furnace bottom legs (2), and the bottom of the furnace bottom plate (1) is fixedly provided with a furnace bottom tool table (3).

3. The high safety special lifting appliance for live-hearth according to claim 1, characterized in that: The connecting mechanism includes a plurality of lifting device connecting frames (5) fixedly arranged on the furnace bottom plate (1), and a lifting chain (7) rotatably arranged on the lifting device connecting frame (5); The furnace bottom plate (1) is rotatably provided with a lifting device cross beam support (8) through a plurality of lifting device connecting frames (5) and lifting chains (7).

4. The high safety special lifting appliance for live-hearth according to claim 3, characterized in that: The connecting mechanism further includes a lifting device connecting plate (10) fixed to the lifting device connecting frame (5), and a connecting bolt (11) screwing arranged on the lifting device connecting plate (10); The lifting device connecting frame (5) is fixedly arranged on the furnace bottom plate (1) through the lifting device connecting plate (10) and the connecting bolt (11).

5. The high safety special lifting appliance for live-hearth according to claim 3, characterized in that: The lifting device mechanism includes a plurality of connecting pins (9) rotatably arranged on the lifting device cross beam support (8), and the other end of the lifting chain (7) is rotatably arranged on the connecting pin (9); A plurality of limiting lifting points (4) are fixedly arranged on the lifting device cross beam support (8).