A method for replacing roof panels of a yurt-type blast furnace iron-making site

Abstract

The present invention relates to a method for replacing the roof panels of a yurt-type blast furnace iron-casting yard, comprising the following steps: 1. Installation of basic construction facilities, installation of a winch, a working platform and a ladder track; 2. Removal of the roof panels, removal of the roof top panels and the inclined roof panels from top to bottom, while using a ladder to slide to the next span, and synchronously replacing and installing the roof panels; 3. Replacement and installation of the roof panels, reinforcement of the roof top panel structure of the iron-casting yard and replacement of the inclined roof panels by a ladder, and completion of the material transport operation; 4. Protection treatment of the roof panels, and anti-corrosion coating of the roof panels by a ladder. The advantages of the present invention are that the method of only removing the top panel and the inclined surface to retain the basic structure saves resources on the one hand, and shortens a certain construction period on the other hand; the operating platform, ladder and track set by Li Tong greatly reduce the construction time, and provide technical support for the construction period of the blast furnace overhaul.

Description

Technical Field

[0001] The invention relates to the technical field of replacing the roof structure of a blast furnace casting house, and in particular to a method for replacing a roof panel of a yurt-type blast furnace casting house. Background Art

[0002] At present, the roof structure of the blast furnace iron-making yard will gradually corrode during use, causing damage to the iron-making yard. The roof structure of the iron-making yard needs to be demolished and rebuilt. Conventional demolition operations are complicated, difficult, time-consuming, and result in serious waste of resources. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a method for replacing a roof panel of a yurt-type blast furnace casting house, comprising the following steps:

[0004] Step 1: Installation of basic construction facilities, installation of winches, working platforms and climbing ladder tracks; use the steel structure of the casthouse roof to install the winches; the working platform and climbing ladder tracks are installed at the bottom of the sloping roof, and the climbing ladder tracks include escalators and sliding tracks;

[0005] Step 2: Remove the roof panels by removing the roof top panels and the inclined roof panels from top to bottom. At the same time, use the escalator to slide on the sliding track to the next span and replace and install the roof panels simultaneously.

[0006] Before the roof panel removal operation, the windshield is removed, and the windshield is removed from the 270° direction to the 180° direction and the 0° direction by using the furnace top crane in a digging and patching manner; the roof panel replacement and installation operation is carried out simultaneously from the 0° direction and the 180° direction;

[0007] Step 3: Replace and install the roof panels. Use the escalator to reinforce the roof structure of the iron-making yard and replace the inclined roof panels. Use the furnace top crane and winch to transport the materials.

[0008] Step 4: Protect the roof panels and use an escalator to apply anti-corrosion paint to the roof panels.

[0009] Furthermore, in the step 2, the windshield is removed before the roof panel removal operation, and the windshield is removed from the 270° direction to the 180° direction and the 0° direction by using a furnace roof crane and a patching method.

[0010] Furthermore, in the step one, the working platform and the climbing ladder track are installed at the bottom of the sloping roof.

[0011] Furthermore, in the step 2, the roof panel replacement and installation operations are performed simultaneously from the 0° direction and the 180° direction.

[0012] Furthermore, in step three, after the roof panel is replaced, the windshield is installed.

[0013] Furthermore, in the step three, the material transportation is completed by using the cooperation of the furnace top crane and the winch.

[0014] Furthermore, the working platform, the ladder track and the winch can all be disassembled and reused.

[0015] Furthermore, the anti-corrosion material used in the anti-corrosion coating work is anti-corrosion paint.

[0016] Furthermore, the climbing track includes an escalator and a sliding track.

[0017] Furthermore, the escalator is arranged vertically, and the sliding track is arranged horizontally.

[0018] In summary, the beneficial technical effects of the present invention are as follows: the method of only removing the top plate and the inclined surface to retain the basic structure saves resources on the one hand and shortens a certain construction period on the other hand; the roof panel is hoisted by a furnace top crane, and the hoisting point of the roof panel is controlled by a winch, which reduces the time of high-altitude operations for operators and improves the safety factor of the installation operation; by arranging an operating platform, an escalator and a sliding track at the bottom of the inclined roof, and using the track to move the escalator, the construction time is greatly reduced, and technical support is provided for ensuring the construction period of the blast furnace overhaul; the present invention adopts a method of gradually replacing both sides of the 270° direction to the 0° and 180° directions. This method will avoid production and ensure that the blast furnace production is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment mode and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings.

[0020] Figure 1 It is the overall flow chart of the method of the present invention;

[0021] Figure 2 It is a schematic diagram of the installation structure of the basic construction facilities in the present invention;

[0022] Figure 3 It is a schematic diagram of the installation structure of the escalator for people walking in the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0024] Reference Figure 1 As shown, a method for replacing a roof panel of a yurt-type blast furnace casting house disclosed in the present invention comprises the following steps:

[0025] Step 1: Installation of basic construction facilities, installation of winches, working platforms and climbing ladder tracks; use the steel structure of the casthouse roof to install the winches; the working platform and climbing ladder tracks are installed at the bottom of the sloping roof, and the climbing ladder tracks include escalators and sliding tracks;

[0026] Step 2: Remove the roof panels by removing the roof top panels and the inclined roof panels from top to bottom. At the same time, use the escalator to slide on the sliding track to the next span and replace and install the roof panels simultaneously.

[0027] Before the roof panel removal operation, the windshield is removed, and the windshield is removed from the 270° direction to the 180° direction and the 0° direction by using the furnace top crane in a digging and patching manner; the roof panel replacement and installation operation is carried out simultaneously from the 0° direction and the 180° direction;

[0028] Step 3: Replace and install the roof panels. Use the escalator to reinforce the roof structure of the iron-making yard and replace the inclined roof panels. Use the furnace top crane and winch to transport the materials.

[0029] Step 4: Protect the roof panels and use an escalator to apply anti-corrosion paint to the roof panels.

[0030] A preferred embodiment of the present invention is as follows (refer to Figure 1-3 shown):

[0031] The first step is to use the steel structure of the casthouse roof to install the winch;

[0032] The second step is to install the working platform, escalator and sliding track at the bottom of the sloping roof. Figure 2-3 As shown in the figure, by setting an operating platform, an escalator and a sliding track at the bottom of the sloping roof, and using the sliding track to move the escalator, the construction time is greatly reduced, providing technical support for ensuring the construction period of the blast furnace overhaul;

[0033] The third step is to use the furnace top crane to remove the windshield from the 270° direction to the 180° and 0° directions by digging and patching. This method will avoid production and ensure that the blast furnace production is not affected;

[0034] The fourth step is to dismantle the roof top plate and the inclined roof plate from top to bottom. After dismantling one span, use the track to slide the ladder to the next span for operation, and replace them synchronously from 0° and 180° during the operation;

[0035] Step 5: After the demolition is completed, the roof structure of the iron-making yard is reinforced and the inclined roof panels are replaced by using the escalator, and the material is transported using the furnace top crane and winch;

[0036] Step 6: After the top roof and the sloping roof are installed, install the windshield.

[0037] Step seven, finally use the escalator to carry out anti-corrosion painting of the roof panels, and paint them with anti-corrosion paint.

[0038] In summary, the beneficial technical effects of the present invention are as follows: the method of only removing the top plate and the inclined surface to retain the basic structure saves resources on the one hand and shortens a certain construction period on the other hand; the roof panel is hoisted by a furnace top crane, and the hoisting point of the roof panel is controlled by a winch, which reduces the time of high-altitude operations for operators and improves the safety factor of the installation operation; by arranging an operating platform, an escalator and a sliding track at the bottom of the inclined roof, and using the track to move the escalator, the construction time is greatly reduced, and technical support is provided for ensuring the construction period of the blast furnace overhaul; the present invention adopts a method of gradually replacing both sides of the 270° direction to the 0° and 180° directions. This method will avoid production and ensure that the blast furnace production is not affected.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0040] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A method for replacing the roof panel of a yurt-type blast furnace casting house, characterized in that: The steps include: Step 1: Installation of basic construction facilities, installation of winches, working platforms and climbing ladder tracks; use the steel structure of the casthouse roof to install the winches; the working platform and climbing ladder tracks are installed at the bottom of the sloping roof, and the climbing ladder tracks include escalators and sliding tracks; Step 2: Remove the roof panels by removing the roof top panels and the inclined roof panels from top to bottom. At the same time, use the escalator to slide on the sliding track to the next span and replace and install the roof panels simultaneously. Before the roof panel removal operation, the windshield is removed, and the windshield is removed from the 270° direction to the 180° direction and the 0° direction by using the furnace top crane in a digging and patching manner; the roof panel replacement and installation operation is carried out simultaneously from the 0° direction and the 180° direction; Step 3: Replace and install the roof panels. Use the escalator to reinforce the roof structure of the iron-making yard and replace the inclined roof panels. Use the furnace top crane and winch to transport the materials. Step 4: Protect the roof panels and use an escalator to apply anti-corrosion paint to the roof panels.

2. The method for replacing the roof panel of a yurt-type blast furnace casting house according to claim 1, characterized in that: In the step 3, after the roof panel is replaced, the windshield is installed.

3. The method for replacing the roof panel of a yurt-type blast furnace casting house according to claim 1, characterized in that: The working platform, the ladder track and the hoist can be disassembled and reused.

4. The method for replacing the roof panel of a yurt-type blast furnace casting house according to claim 1, characterized in that: The anti-corrosion material used in the anti-corrosion coating work is anti-corrosion paint.

5. The method for replacing the roof panel of a yurt-type blast furnace casting house according to claim 1, characterized in that: The escalator is arranged vertically, and the sliding track is arranged horizontally.

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