A device for building a converter

Abstract

The present application relates to a device for converter building, mainly solve the single function, low efficiency, unsafe operation of the existing converter building operation platform technical problem.The technical scheme is a device for converter building, including tower body, folding platform, the tower body is provided with a hanging compartment, characterized in that the folding platform includes support body, folding device, folding platform lifting device, the support body is sleeve structure, the support body is sleeved on the outer surface of the tower body, and the bottom of the support body is provided with a cavity for accommodating the folding device;the support body and the folding device are linked through a hinge, the folding device includes a plurality of radially foldable arc support units, box type cover plate and pull rod;adjacent arc support units are fixedly connected through pull rods;the first sub arc support is provided with a cavity for accommodating the second sub arc support, and the second sub arc support is provided with a cavity for accommodating the third sub arc support.The device has simple structure, four platform sizes, and reduces the cost of converter building.

Description

Technical Field

[0001] This invention relates to an apparatus for refractory material lining in converters, and particularly to an apparatus for converter lining, belonging to the technical field of converter lining equipment. Background Technology

[0002] The converter tower is a key piece of equipment for converter repair operations. It mainly consists of a tower trolley, material carts, the tower body, a hoisting chute, and a construction platform. The tower body is primarily composed of four square columns, forming the main body of the construction device and connecting other functional components such as the hoisting chute, hoisting device, construction platform, and construction platform lifting device. Internally, it forms a channel for air supply and ventilation within the converter. The hoisting chute, located inside the tower, moves vertically along the tower's axis and is primarily used for material transport. The annular construction platform, attached to the outside of the tower body, is a variable-diameter operating platform that adjusts according to the converter's internal diameter. Moving vertically along the tower's axis, it serves as a material storage platform and is the primary platform for operations within the converter.

[0003] The square hoisting hopper is located inside the tower, its size determined by the inscribed circle formed by the tower. The annular construction platform is located outside, its size determined by the circumscribed circle formed by the tower. Currently, major steel plants in China design their converter construction platforms by reducing the external dimensions of the tower. This reduces the working area of ​​the hoisting hopper, increases the number of movements required for transporting personnel and materials, and affects the converter construction time.

[0004] Chinese patent application CN110259091A discloses a foldable operating platform that uses 12 approximately triangular storage spaces formed between the connecting columns of the folding arm to house the folding arm. In effect, this reduces the size of the middle hoisting compartment. For large furnace wall bricks, multiple up-and-down transports are required, which is inefficient and cannot meet the requirements of converter furnace construction. Summary of the Invention

[0005] The purpose of this invention is to provide a device for converter furnace construction, which mainly solves the technical problems of existing converter furnace construction operation platforms having single function, low operation efficiency, and unsafe operation; this invention has efficient and safe furnace construction function, and meets the operation requirements within the limited space of the converter furnace body.

[0006] The technical concept of this invention is to adopt an independent dual lifting mechanism. The hoisting device drives the hoisting car inside the tower to rise and fall vertically inside the tower. The folding platform driving device drives the folding platform to rise and fall vertically on the outer surface of the tower along the guide rail provided on the outer side of the tower. By adjusting the extension state of the first sub-arc support, the second sub-arc support, and the third sub-arc support of the folding platform arc support unit, the diameter of the folding platform is dynamically adjusted to meet the space requirements of the converter furnace construction operation surface.

[0007] The technical solution of this invention is a device for converter furnace construction, comprising a tower body and a folding platform. The tower body is a rectangular truss beam structure, with a hoisting cabin inside. A hoisting device is fixedly connected to the inner side of the upper part of the tower body. A guide rail for vertically lifting the folding platform is provided on the outer surface of the tower body. The folding platform comprises a support body, a folding device, and a folding platform lifting device, which is fixedly connected to the outer side of the upper part of the tower body. The support body is a sleeve structure, fitted onto the outer surface of the tower body. An movable door leading to the hoisting cabin is provided inside the support body, and an movable door leading to the folding device is provided outside the support body. A cavity for housing the folding device is provided at the bottom of the support body. The support body and the folding device are movably connected by hinges. The folding device includes several radially foldable arc-shaped support units, a box-shaped cover plate, and tie rods. Adjacent arc-shaped support units are fixedly connected by tie rods. The box-shaped cover plate has a slot, which covers the upper surface of the arc-shaped support unit and the pull rod. Adjacent box-shaped cover plates are interlocked through the slot. Each arc-shaped support unit includes a first sub-arc-shaped support, a second sub-arc-shaped support, and a third sub-arc-shaped support. Each of the first, second, and third sub-arc-shaped supports has two pin holes. One end of the first sub-arc-shaped support is movably connected to the support body of the folding platform through a pin, and the other end of the first sub-arc-shaped support is movably connected to the second sub-arc-shaped support through a pin. The second and third sub-arc-shaped supports are movably connected through pins. The chord length of the first sub-arc-shaped support is greater than that of the second sub-arc-shaped support, and the chord length of the second sub-arc-shaped support is greater than that of the third sub-arc-shaped support. The first sub-arc-shaped support has a cavity for receiving the second sub-arc-shaped support, and the second sub-arc-shaped support has a cavity for receiving the third sub-arc-shaped support.

[0008] In this invention, the third sub-arc bracket of each arc-shaped support unit of the folding device can be folded and stored in the cavity of the second sub-arc bracket of the same arc-shaped support unit; the second sub-arc bracket of each arc-shaped support unit of the folding device can be folded and stored in the cavity of the first sub-arc bracket; and the folding device can be folded and stored in the cavity on the support body for storing the folding device.

[0009] The folding platform lifting device and the gondola lifting device of the present invention are independent devices. The folding platform lifting device drives the folding platform to rise and fall vertically along the guide rail on the outer surface of the tower body, and the gondola lifting device drives the gondola to rise and fall vertically inside the tower body.

[0010] When carrying out converter furnace construction operations, the hoisting device is operated to drive the hoisting car inside the tower to rise and fall vertically inside the tower. The folding platform drive device is operated to drive the folding platform to rise and fall vertically along the guide rail on the outer surface of the tower. The hoisting car inside the tower and the folding platform fitted on the outer surface of the tower are controlled to be at the same height. The workers enter the support body of the folding platform from the hoisting car and unfold the first sub-arc support, the second sub-arc support, and the third sub-arc support of the arc support unit of the folding device in sequence. The corresponding tie rods are installed on the arc support unit. The box-shaped cover plate is covered on the arc support unit and the tie rods to build up the working platform.

[0011] During the converter furnace construction operation, the diameter of the folding platform is dynamically adjusted by adjusting the extension state of the first, second, and third sub-arc supports of the arc support unit to meet the space requirements of the converter furnace construction operation surface.

[0012] The folding platform of the device of the present invention has four platform sizes, which maximizes the space area of ​​the hoisting chamber and meets the needs of converter furnace construction.

[0013] When the folding platform of the device of the present invention is at its smallest size, the folding device is folded and stored in the cavity on the support body for storing the folding device.

[0014] When the converter furnace mouth is being constructed, the first sub-arc support of the folding device arc support unit is in an extended state, while the second sub-arc support and the second sub-arc support of the folding device arc support unit are in a retracted state.

[0015] When the converter bottom is being constructed, the first and second sub-arc supports of the folding device arc support unit are in an extended state, while the third sub-arc support of the folding device arc support unit is in a retracted state.

[0016] When the folding platform of the device of the present invention is at its maximum size, the first sub-arc bracket, the second sub-arc bracket and the third sub-arc bracket of the arc bracket unit of the folding device are in an extended state; the shaft holes of the first sub-arc bracket, the second sub-arc bracket and the third sub-arc bracket of the arc bracket unit of the folding device are collinear and point to the center of the circle.

[0017] Compared with existing technologies, this invention has the following advantages: 1. The device of this invention adopts an arc-shaped support unit, overcoming the problem of existing hoist designs occupying working space and improving the efficiency of bricklaying operations. 2. The device of this invention has a simple structure, is easy to operate and maintain, and reduces the cost of converter furnace construction. 3. The device of this invention has stable performance and is safe and reliable, ensuring the safety of converter furnace construction operations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the device structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the foldable platform of the device of the present invention at its smallest size.

[0020] Figure 3 This is a schematic diagram of the structure of the foldable platform of the device of the present invention at its maximum size.

[0021] Figure 4 This is a schematic diagram of the sub-arc support of the arc support unit of the device of the present invention.

[0022] The markings in the diagram are as follows: 1-Converter, 2-Tower body, 3-Hanging box, 4-Folding platform, 5-Hanging box lifting device, 101-First sub-arc support, 102-Second sub-arc support, 103-Third sub-arc support, 104-Support body, 105-Folding platform lifting device. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1, refer to Appendix Figure 1 , 23, 4, A device for converter furnace construction includes a tower body 2 and a folding platform 4. The tower body 2 is a rectangular truss beam structure. A hoisting cabin 3 is provided inside the tower body 2. A hoisting device 5 is fixedly connected to the upper inner side of the tower body 2. A guide rail for vertical lifting of the folding platform is provided on the outer surface of the tower body 2. The folding platform 4 includes a support body 104, a folding device, and a folding platform lifting device 105. The folding platform lifting device 105 is fixedly connected to the upper outer side of the tower body 2. The support body 104 is a sleeve structure, fitted onto the outer surface of the tower body 2. An movable door leading to the hoisting cabin 3 is provided on the inner side of the support body 104, and an movable door leading to the folding device is provided on the outer side of the support body 104. A cavity for storing the folding device is provided at the bottom of the support body 104. The support body 104 and the folding device are movably connected by hinges. The folding device includes several radially foldable arc-shaped support units, a box-shaped cover plate, and tie rods. Adjacent arc-shaped support units are fixedly connected by tie rods. The box-shaped cover plate has a slot. A cover plate covers the upper surface of the arc-shaped support unit and the tie rod, and adjacent box-shaped cover plates are interlocked by slots; each arc-shaped support unit includes a first sub-arc-shaped support 101, a second sub-arc-shaped support 102, and a third sub-arc-shaped support 103; each of the first sub-arc-shaped support 101, the second sub-arc-shaped support 102, and the third sub-arc-shaped support 103 is provided with two pin holes, and one end of the first sub-arc-shaped support 101 is movably connected to the support body 104 of the folding platform through a pin, and the first sub-arc-shaped support 101... The other end is movably connected to the second sub-arc bracket 102 via a pin, and the second sub-arc bracket 102 is movably connected to the third sub-arc bracket 103 via a pin; the chord length of the first sub-arc bracket 101 is greater than the chord length of the second sub-arc bracket 102, and the chord length of the second sub-arc bracket 102 is greater than the chord length of the third sub-arc bracket 103; the first sub-arc bracket 101 is provided with a cavity for receiving the second sub-arc bracket 102, and the second sub-arc bracket 102 is provided with a cavity for receiving the third sub-arc bracket 103.

[0025] The third sub-arc bracket 103 of each arc bracket unit of the folding device can be folded and stored in the cavity of the second sub-arc bracket 102 of the same arc bracket unit; the second sub-arc bracket 102 of each arc bracket unit of the folding device can be folded and stored in the cavity of the first sub-arc bracket 101; the folding device can be folded and stored in the cavity on the support body for storing the folding device.

[0026] The folding platform lifting device 105 and the gantry lifting device 5 are independent of each other. The folding platform lifting device 105 drives the folding platform 4 to rise and fall vertically along the guide rail on the outer surface of the tower body 2, and the gantry lifting device 5 drives the gantry 3 to rise and fall vertically inside the tower body 2.

[0027] When carrying out the furnace construction work of converter 1, the hoisting device 5 is operated to drive the hoisting device 3 inside the tower body 2 to rise and fall vertically. The folding platform drive device 105 is operated to drive the folding platform 4 to rise and fall vertically along the guide rail on the outer surface of the tower body 2. The hoisting device 3 inside the tower body and the folding platform 4 fitted on the outer surface of the tower body are controlled to be at the same height. The workers enter the support body 104 of the folding platform 4 from the hoisting device 3 and unfold the first sub-arc support 101, the second sub-arc support 102, and the third sub-arc support 103 of the arc support unit of the folding device in sequence. The corresponding tie rods are installed on the arc support unit. The box-shaped cover plate is covered on the arc support unit and the tie rods to build a working platform.

[0028] When carrying out the construction of converter 1, the diameter of the folding platform 4 is dynamically adjusted by adjusting the extension state of the first sub-arc support, the second sub-arc support, and the third sub-arc support of the arc support unit, so as to meet the space requirements of the construction surface of converter 1.

[0029] In addition to the embodiments described above, the present invention may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by the present invention.

Claims

1. A device for converter furnace construction, comprising a tower body and a folding platform, wherein the tower body is a rectangular truss beam structure, a hoisting cabin is provided inside the tower body, a hoisting device is fixedly connected to the upper inner side of the tower body, and a guide rail for vertical lifting of the folding platform is provided on the outer surface of the tower body, characterized in that... Foldable The platform includes a support body, a folding device, and a folding platform lifting device. The folding platform lifting device is fixedly connected to the upper outer side of the tower body. The support body is a sleeve structure, fitted onto the outer surface of the tower body. The inner side of the support body has a movable door leading to the hoisting cabin, and the outer side has a movable door leading to the folding device. The bottom of the support body has a cavity for storing the folding device. The support body and the folding device are movably connected by hinges. The folding device includes several radially foldable arc-shaped support units, a box-shaped cover plate, and tie rods. Adjacent arc-shaped support units are fixedly connected by tie rods. The box-shaped cover plate... The system is equipped with slots, and box-shaped cover plates cover the upper surfaces of the arc-shaped support units and tie rods. Adjacent box-shaped cover plates are interlocked through the slots. Each arc-shaped support unit includes a first sub-arc-shaped support, a second sub-arc-shaped support, and a third sub-arc-shaped support. Each of the first, second, and third sub-arc-shaped supports has two pin holes. One end of the first sub-arc-shaped support is movably connected to the support body of the folding platform through a pin, and the other end of the first sub-arc-shaped support is movably connected to the second sub-arc-shaped support through a pin. The second and third sub-arc-shaped supports are movably connected through pins. The chord length of the first sub-arc bracket is greater than that of the second sub-arc bracket, and the chord length of the second sub-arc bracket is greater than that of the third sub-arc bracket; the first sub-arc bracket has a cavity for receiving the second sub-arc bracket, and the second sub-arc bracket has a cavity for receiving the third sub-arc bracket.

2. The apparatus for converter furnace construction as described in claim 1, characterized in that, The folding platform lifting device and the gondola lifting device are independent of each other. The folding platform lifting device drives the folding platform to rise and fall vertically along the guide rail on the outer surface of the tower body, and the gondola lifting device drives the gondola to rise and fall vertically inside the tower body.

3. The apparatus for converter furnace construction as described in claim 1, characterized in that, The folding platform has four platform sizes, which are arranged from smallest to largest as follows: the size of the folding platform when the folding device is folded and stored in the cavity of the support body for storing the folding device; The first sub-arc bracket of the folding device arc bracket unit is in the extended state, and the dimensions of the second sub-arc bracket of the folding device arc bracket unit and the folding platform when the second sub-arc bracket is in the retracted state are as follows: The dimensions of the folding platform when the first and second sub-arc supports of the folding device arc support unit are in the extended state, and the third sub-arc support of the folding device arc support unit is in the retracted state. The dimensions of the folding platform when the first sub-arc support, the second sub-arc support, and the third sub-arc support of the folding device arc support unit are in the extended state.

4. The apparatus for converter furnace construction as described in claim 3, characterized in that, When the first sub-arc bracket, the second sub-arc bracket, and the third sub-arc bracket of the folding device arc bracket unit are in the extended state, the shaft holes of the first sub-arc bracket, the second sub-arc bracket, and the third sub-arc bracket of the folding device arc bracket unit are collinear and point towards the center of the circle.

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