Blast furnace medium repair in-furnace tool and mounting method

Abstract

The invention provides an in-furnace medium repair tool for a blast furnace and a mounting method. The tool comprises a central column, a supporting structure, an annular hanging beam and a circular mounting plate, the bottom of the central column is arranged at the bottom in the blast furnace; the supporting structure is detachably arranged at the top of the central column; the mounting plate detachably covers the top of the supporting structure; the hanging beam is detachably arranged at the bottom of the supporting structure. According to the device, the central column is arranged in the blast furnace, the supporting structure is detachably arranged at the top of the central column, the mounting plate detachably covers the top of the supporting structure, and the hanging beam is detachably arranged at the bottom of the supporting structure, so that an auxiliary device is convenient to mount, and refractory materials in the furnace are constructed; according to the tool, the hearth and the furnace body can be constructed synchronously without mutual interference, the tool can also be used as a supporting platform for hoisting carbon brick masonry materials of the hearth, operation is easy and convenient, mounting and dismounting are convenient, the construction efficiency of refractory material construction in the furnace is improved, and the construction period of the refractory material in the furnace is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of blast furnace construction, and in particular to a blast furnace repair tool and an installation method thereof. Background Art

[0002] The blast furnace is made of steel plates as the shell, and the shell is lined with refractory bricks. The structure of the blast furnace, the furnace body and other structures are worn out during production. Some need to be repaired, some need to be shut down, and some need to be replaced. This kind of work is called maintenance. Maintenance can be divided into four categories according to time and nature: temporary maintenance, regular maintenance, medium maintenance and major maintenance.

[0003] When repairing the blast furnace, there are no professional tools for transporting the refractory materials inside the furnace, which prolongs the construction period of the refractory materials inside the furnace. Summary of the invention

[0004] In view of this, the present invention proposes a blast furnace repair tooling, aiming to solve the problem of the prior art of extending the construction period of refractory materials in the furnace. The present invention also proposes an installation method of the blast furnace repair tooling.

[0005] In one aspect, the present invention proposes a tool for repairing a blast furnace, the tool comprising: a center column, a support structure, a ring-shaped suspension beam and a circular mounting plate; wherein the bottom of the center column is used to be set at the bottom of the blast furnace; the support structure is detachably set on the top of the center column; the mounting plate is detachably covered on the top of the support structure; and the suspension beam is detachably set on the bottom of the support structure.

[0006] Furthermore, in the above-mentioned blast furnace repair tooling, the supporting structure includes: a plurality of main beams, a plurality of first connecting beams and a plurality of second connecting beams; wherein, the first end of each main beam is connected to the top of the central column, the second end of each main beam extends away from the central column, and the main beams are evenly distributed along the circumferential direction of the central column; at least one first connecting beam is arranged horizontally between any two adjacent main beams; each second connecting beam is parallel to the main beam, and each second connecting beam is placed between two adjacent main beams and connected to the first connecting beam at the corresponding position; the mounting plate cover is arranged on each first connecting beam and each second connecting beam and is detachably connected to the top of each main beam; the hanging beam is detachably arranged at the bottom of each main beam.

[0007] Furthermore, the above-mentioned blast furnace repair tooling also includes: a plurality of adjusting cylinders with one end open and the other end closed; wherein, each adjusting cylinder corresponds to each main beam one by one; the open end of each adjusting cylinder is sleeved on the main beam from the end of the second end of the corresponding main beam, and the outer wall of the closed end of each adjusting cylinder is an inclined surface and gradually tilts inward from the top to the bottom; a reinforcing structure is arranged inside each adjusting cylinder near the open end.

[0008] Furthermore, in the above-mentioned blast furnace repair tooling, the central column includes: a plurality of installation sections; wherein each installation section is connected in sequence through a flange.

[0009] Furthermore, the above-mentioned blast furnace repair tooling also includes: a reinforcing mechanism; wherein the reinforcing mechanism is arranged at the bottom of the central column and connected to the bottom of the blast furnace.

[0010] Furthermore, in the above-mentioned blast furnace repair tooling, the reinforcement mechanism includes: a plurality of reinforcement sections; wherein the reinforcement sections are spaced apart along the circumferential direction of the center column; each reinforcement section includes: a reinforcement member and an inclined brace; wherein the first end of the reinforcement member is detachably connected vertically to the bottom of the center column, and the second end of the reinforcement member extends away from the center column and is connected to the bottom of the blast furnace; the first end of the oblique brace is detachably connected to the center column, and the second end of the oblique brace is detachably connected to the second end of the reinforcement member.

[0011] In the present invention, the central column is placed in the blast furnace, the supporting structure is detachably arranged on the top of the central column, the mounting plate is detachably covered on the top of the supporting structure to cover the supporting structure, and the hanging beam is detachably arranged on the bottom of the supporting structure to facilitate the installation of auxiliary devices and then the construction of refractory materials in the furnace. The tooling can make the furnace hearth and the furnace body non-interfering with each other and be constructed synchronously, and can also serve as a supporting platform for lifting carbon brick masonry materials in the furnace hearth. The operation is simple and convenient, and it is easy to install and disassemble, thereby improving the construction efficiency of the refractory materials in the furnace, shortening the construction period of the refractory materials in the furnace, and solving the problem of prolonging the construction period of the refractory materials in the furnace in the prior art.

[0012] On the other hand, the present invention also proposes a method for installing any of the above-mentioned tooling for repairing a blast furnace, the method comprising the following steps: a platform installation step, installing a construction platform at the bottom of the blast furnace; a center column installation step, installing the center column on the construction platform; a support structure installation step, installing the support structure and the hanging beam on the top of the center column; a mounting plate laying step, laying the mounting plate on the support structure; an auxiliary device installation step, installing the auxiliary device on the hanging beam.

[0013] Furthermore, in the above-mentioned method for installing tooling for repairing a blast furnace, in the step of installing a center column, the center column includes: a plurality of installation sections connected in sequence by flanges, the lowest installation section is connected to the construction platform, and a reinforcement mechanism is provided at the lowest installation section.

[0014] Furthermore, in the above-mentioned method for installing tooling for repairing furnaces in a blast furnace, in the support structure installation step, the support structure includes: a plurality of main beams, a plurality of first connecting beams and a plurality of second connecting beams; wherein, the first end of each main beam is connected to the top of the central column, the second end of each main beam extends away from the central column, and the main beams are evenly distributed along the circumferential direction of the central column; at least one first connecting beam is arranged horizontally between any two adjacent main beams, each second connecting beam is parallel to the main beam, and each second connecting beam is placed between two adjacent main beams and connected to the first connecting beam at the corresponding position; when installing the main beam, the main beam is installed and leveled by a cable-stayed device, and the main beam is connected to the blast furnace body by a safety rope; after the installation of each main beam is completed, a hanging beam is installed at the bottom of each main beam, and then each first connecting beam and each second connecting beam are installed; in the installation plate laying step, the installation plate cover is arranged on each first connecting beam and each second connecting beam, and the installation plate is detachably connected to the top of each main beam.

[0015] Furthermore, in the above-mentioned method for installing the tooling for repairing the furnace in the blast furnace, after the installation of each main beam, each first connecting beam and each second connecting beam is completed, an adjusting cylinder is sleeved on the second end of each main beam, and each main beam is provided with a baffle near the second end, and the jack is abutted against the baffle, and the telescopic end of the jack pushes the end of the adjusting cylinder to make the adjusting cylinder fit with the blast furnace body.

[0016] In the present invention, a construction platform is installed at the bottom of the blast furnace, and then a central column is installed on the construction platform, and then a supporting structure and a hanging beam are installed on the top of the central column, and a mounting plate is laid on the supporting structure to cover the supporting structure, and finally an auxiliary device is installed on the hanging beam to construct the refractory materials in the furnace. This method can make the furnace cylinder and the furnace body non-interfering with each other and can be constructed synchronously, and the operation is simple and convenient, and it is easy to install and disassemble, thereby improving the construction efficiency of the refractory materials in the furnace, shortening the construction period of the refractory materials in the furnace, and ensuring the construction quality and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0018] Figure 1 A schematic diagram of the structure of a tool for repairing a blast furnace provided in an embodiment of the present invention;

[0019] Figure 2 A structural schematic diagram of a support structure in a blast furnace repair tool provided in an embodiment of the present invention;

[0020] Figure 3A schematic structural diagram of a support structure in a blast furnace repair tool provided in an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the structure of the regulating cylinder in the blast furnace repair tooling provided by an embodiment of the present invention;

[0022] Figure 5 The present invention provides a flowchart of a method for installing a tool for repairing a blast furnace in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to 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 set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] Example of tooling for blast furnace repair:

[0025] See also Figures 1 to 4 , the figure shows the preferred structure of the blast furnace repair tooling in this embodiment. As shown in the figure, the blast furnace repair tooling includes: a central column 1, a support structure 2, a hanging beam 3 and a mounting plate. Among them, the central column 1 is placed inside the blast furnace 5, and the bottom of the central column 1 ( Figure 1 The lower part shown in the figure is arranged at the bottom of the blast furnace 5. Specifically, the central column 1 is arranged in the blast furnace 5 along the height direction of the blast furnace 5 ( Figure 1 The support structure 2 is detachably arranged on the top of the central column 1 ( Figure 1 shown in the upper part).

[0026] The mounting plate is circular and is detachably covered on the top of the supporting structure 2 , and the supporting structure 2 supports the mounting plate.

[0027] The hanging beam 3 is annular and is detachably arranged at the bottom of the supporting structure 2. Specifically, the hanging beam 3 and the central column 1 can be arranged concentrically, and the hanging beam 3 is sleeved outside the central column 1. The hanging beam 3 is used to install auxiliary devices, and the auxiliary devices are used to construct the refractory materials in the furnace.

[0028] It can be seen that in the present embodiment, the center column 1 is placed in the blast furnace 5, the support structure 2 is detachably arranged on the top of the center column 1, the mounting plate is detachably covered on the top of the support structure 2 to cover the support structure 2, and the hanging beam 3 is detachably arranged on the bottom of the support structure 2, which is convenient for installing auxiliary devices and then transporting and constructing the refractory materials in the furnace. The tooling can make the furnace hearth and the furnace body non-interfering with each other and can be constructed synchronously, and can also serve as a support platform for lifting the carbon brick masonry materials of the furnace hearth. The operation is simple and convenient, and it is easy to install and disassemble, which improves the construction efficiency of the refractory materials in the furnace, shortens the construction period of the refractory materials in the furnace, and solves the problem of prolonging the construction period of the refractory materials in the furnace in the prior art.

[0029] See also Figures 1 to 3 In the above embodiment, the support structure 2 includes: a plurality of main beams 21, a plurality of first connecting beams 22 and a plurality of second connecting beams 23. Among them, the first end of each main beam 21 is connected to the top of the central column 1, and the second end of each main beam 21 extends away from the central column 1. The main beams 21 are evenly distributed along the circumferential direction of the central column 1, and the main beams 21 form an umbrella-shaped structure with the central column 1. Specifically, the number of main beams 21 can be determined according to actual conditions, and this embodiment does not impose any restrictions on this. In this embodiment, there are 12 main beams 21. The first end of each main beam 21 is detachably connected to the central column 1, preferably a bolted connection.

[0030] At least one first connecting beam 22 is horizontally arranged between any two adjacent main beams 21. Preferably, each first connecting beam 22 is vertically arranged between any two adjacent main beams 21. Specifically, two first connecting beams 22 are arranged between any two adjacent main beams 21, one of which is arranged near the middle of the main beam 21, and the other first connecting beam 22 is arranged at the end of the second end of the main beam 21.

[0031] Each second connecting beam 23 is parallel to the main beam 21, and each second connecting beam 23 is placed between two adjacent main beams 21 and connected to the first connecting beam 22 at the corresponding position. Specifically, each second connecting beam 23 is parallel to the main beam 21, and a second connecting beam 23 is arranged between two adjacent main beams 21, and the second connecting beam 23 is connected to each first connecting beam 22 between the two main beams 21. When two first connecting beams 22 are arranged between two adjacent main beams 21, the first end of the second connecting beam 23 is connected to the first connecting beam 22 near the middle of the main beam 21, and the second end of the second connecting beam 23 is connected to the first connecting beam 22 at the second end of the main beam 21.

[0032] Each first connecting beam 22 is detachably connected to the corresponding main beam 21, preferably connected by bolts. Each second connecting beam 23 is also detachably connected to the corresponding first connecting beam 22, preferably connected by bolts.

[0033] In specific implementation, a third connecting beam 24 is respectively arranged on both sides of the second end of each main beam 21, and each second connecting beam 23 continues to extend outward along the direction of the main beam 21 after being connected to the first connecting beam 22 at the second end of the main beam 21.

[0034] The mounting plate cover is arranged on each first connecting beam 22 and each second connecting beam 23, and the mounting plate is detachably connected to the top of each main beam 21. Specifically, the mounting plate includes: a plurality of blocks, each block is detachably connected to each main beam 21, and each block forms a mounting plate. Preferably, each block is plug-in connected to the corresponding main beam 21. Specifically, an L-shaped connector is arranged on each main beam 21, and both ends of the connector are connected to the main beam 21, so that there is a certain gap between the bending part of the connector and the main beam 21 to form a plug-in space, and the end of the block is arranged to be pointed, and the end of the block is plugged into the plug-in space between the connector and the main beam 21.

[0035] In specific implementation, the mounting plate can be a 4 mm thick patterned steel plate.

[0036] The hanging beam 3 is detachably arranged at the bottom of each main beam 21. Specifically, the hanging beam 3 is arranged at the bottom of the end portion of each main beam 21 close to the second end. Preferably, the hanging beam 3 is connected to each main beam 21 by bolts to avoid deformation of the hanging beam 3 and ensure that the entire circle of the hanging beam 3 is on the same horizontal plane.

[0037] In specific implementation, each main beam 21 can be HW340*250*9*14 steel. The suspension beam 3 can be formed by bending 32a I-beam. Each first connecting beam 22 and each second connecting beam 23 can be HW100*100*6*8 steel.

[0038] It can be seen that in this embodiment, the supporting structure 2 has a simple structure and is easy to implement.

[0039] See also Figures 1 to 4 In the above embodiment, the blast furnace repair tooling also includes: a plurality of adjustment cylinders 6. Among them, each adjustment cylinder 6 corresponds to each main beam 21. One end of each adjustment cylinder 6 is open and the other end is closed. The open end of each adjustment cylinder 6 is sleeved on the main beam 21 from the end of the second end of the corresponding main beam 21, and the outer wall of the closed end of each adjustment cylinder 6 is an inclined surface, and the outer wall of the closed end of each adjustment cylinder 6 is from the top to the bottom ( Figure 4The top of the adjusting cylinder 6 corresponds to the top of the main beam 21, and the bottom of the adjusting cylinder 6 corresponds to the bottom of the main beam 21. Preferably, the outer wall of the closed end of the adjusting cylinder 6 is inclined inwardly at a preset angle, which can be determined according to actual conditions, and this embodiment does not impose any restrictions on this. In this embodiment, the preset angle is 8°.

[0040] Preferably, each main beam 21 is provided with a baffle 12 near the second end, and each baffle 12 corresponds to each adjustment tube 6. A jack is provided at each baffle 12, the fixed end of the jack abuts against the baffle 12, and the telescopic end of the jack abuts against the open end of the adjustment tube 6. The telescopic end of the jack is used to push the adjustment tube 6 to adjust the position of the adjustment tube 6, so that the adjustment tube 6 contacts the furnace body of the blast furnace 5.

[0041] A reinforcement structure is provided inside each adjusting cylinder 6 near the opening end, specifically, the reinforcement structure is provided inside the adjusting cylinder 6, and the reinforcement structure is provided near the opening end of the adjusting cylinder 6. The reinforcement structure is used to improve the strength of the adjusting cylinder 6 to ensure that the adjusting cylinder 6 is not damaged when the jack is pushed.

[0042] Preferably, the reinforcement structure includes: a plurality of reinforcement ribs 13 and an annular reinforcement rib plate 14. Each reinforcement rib 13 is arranged at the open end of the adjustment cylinder 6 and is placed inside the adjustment cylinder 6, each reinforcement rib 13 extends toward the closed end of the adjustment cylinder 6, and each reinforcement rib 13 is evenly distributed along the circumferential direction of the open end of the adjustment cylinder 6. The reinforcement rib plate 14 is arranged at the open end of the adjustment cylinder 6.

[0043] In specific implementation, each adjusting cylinder 6 can be composed of multiple 20mm thick steel plates, and two Φ20 round steels are passed through the interior of the adjusting cylinder 6. Each adjusting cylinder 6 can be connected by manual welding. The reinforcing rib plate 14 has a single-sided "V"-shaped groove with a groove angle of 45° and a blunt edge of 3mm.

[0044] It can be seen that in this embodiment, by providing the adjusting cylinder 6 and using a jack to push the open end of the adjusting cylinder 6, the closed end of the adjusting cylinder 6 is stably fitted with the furnace body of the blast furnace 5, the structure is simple, and it is easy to implement.

[0045] See also Figure 1 In the above embodiments, the central column 1 includes: a plurality of mounting sections 11. The mounting sections 11 are connected in sequence by flanges. Specifically, flanges are provided at both ends of each mounting section 11, and the flanges of two adjacent mounting sections 11 are connected to each other and connected by bolts.

[0046] In specific implementation, each installation section 11 can be a DN1000 spiral tube. In this embodiment, there are four installation sections 11, and the length of each section can be determined according to actual conditions, and this embodiment does not impose any restrictions on this. In this embodiment, the lengths of each section are 6m, 2.5m, 3.5m and 0.88m respectively.

[0047] Preferably, the blast furnace repair tooling also includes: a reinforcing mechanism 7. The reinforcing mechanism 7 is arranged at the bottom of the central column 1, and the reinforcing mechanism 7 is connected to the bottom of the blast furnace 5. Specifically, the reinforcing mechanism 7 is arranged at the lowest installation node 11.

[0048] The reinforcement mechanism 7 includes: a plurality of reinforcement sections, wherein the reinforcement sections are arranged at intervals along the circumferential direction of the central column 1 , and preferably, the reinforcement sections are evenly distributed along the circumferential direction of the central column 1 .

[0049] Each reinforcement section includes a reinforcement member 71 and a diagonal brace 72. The first end of the reinforcement member 71 is perpendicular to the bottom of the central column 1, and the first end of the reinforcement member 71 is detachably connected to the bottom of the central column 1. The second end of the reinforcement member 71 extends away from the central column 1, and the second end of the reinforcement member 71 is connected to the bottom of the blast furnace 5.

[0050] The diagonal brace 72 is in an inclined state, the first end of the diagonal brace 72 is detachably connected to the center column 1, and the second end of the diagonal brace 72 is detachably connected to the second end of the reinforcement 71. Preferably, the first end of the diagonal brace 72 is bolted to the center column 1, and the second end of the diagonal brace 72 is plug-connected to the second end of the reinforcement 71.

[0051] It can be seen that in this embodiment, multiple reinforcement sections are evenly distributed along the circumferential direction of the central column 1, so that the central column 1 is stably connected to the bottom of the blast furnace 5, thereby improving the stability of the central column 1.

[0052] In summary, in this embodiment, the central column 1 is placed in the blast furnace 5, the supporting structure 2 is detachably arranged on the top of the central column 1, the mounting plate is detachably covered on the top of the supporting structure 2 to cover the supporting structure 2, and the hanging beam 3 is detachably arranged on the bottom of the supporting structure 2, which is convenient for installing auxiliary devices and then constructing the refractory materials in the furnace. The tooling can make the furnace hearth and the furnace body non-interfering with each other and can be constructed synchronously, and can also serve as a supporting platform for lifting the carbon brick masonry materials of the furnace hearth. The operation is simple and convenient, and it is easy to install and disassemble, which improves the construction efficiency of the refractory materials in the furnace and shortens the construction period of the refractory materials in the furnace.

[0053] Installation method example:

[0054] This embodiment also proposes a method for installing a tool for repairing the furnace in a blast furnace, wherein the specific implementation process of the tool for repairing the furnace in a blast furnace can be referred to the above description, and this embodiment will not be repeated here. Figure 5 The installation method of the blast furnace repair tooling comprises the following steps:

[0055] Platform installation step S1, installing a construction platform at the bottom of the blast furnace.

[0056] Specifically, the hearth carbon in the blast furnace is removed, the slag is removed, and the residual iron is cleaned. After the cleaning is completed, if all the residual iron is cleaned, the furnace protection bricks within the 5m diameter of the furnace bottom center are first laid and the elevation is measured. After the protective bricks are laid, the foundation elevation position of the center column is measured and determined, and then the construction platform is installed according to the foundation elevation and the flatness of the furnace bottom. If a dead iron layer is retained at the bottom of the furnace, protective bricks are laid except for the dead iron layer. After the protective bricks are laid, the above steps are repeated.

[0057] During specific implementation, the construction platform may be a steel structure platform.

[0058] The center column installation step S2 is to install the center column on the construction platform.

[0059] Specifically, see Figures 1 to 4 The center column 1 includes: a plurality of installation sections 11. Each installation section 11 is connected in sequence by flanges. In specific implementation, there are four installation sections. The installation section is hoisted into the furnace by a furnace top crane through a large manhole on the furnace top, wherein the lowest installation section is a support section, and the remaining installation sections are adjustment sections.

[0060] The lowest installation section is connected to the construction platform, and a reinforcing mechanism 7 is provided at the lowest installation section.

[0061] The reinforcement mechanism 7 may include: a plurality of reinforcement sections, wherein the reinforcement sections are arranged at intervals along the circumferential direction of the central column 1, and are preferably evenly distributed.

[0062] Each reinforcement section includes: a reinforcement member 71 and a diagonal brace 72. The first end of the reinforcement member 71 is perpendicular to the bottom of the center column 1, and the first end of the reinforcement member 71 is detachably connected to the bottom of the center column 1. The second end of the reinforcement member 71 extends away from the center column 1, and the second end of the reinforcement member 71 is connected to the bottom of the blast furnace 5. The diagonal brace 72 is in an inclined state, the first end of the diagonal brace 72 is detachably connected to the center column 1, and the second end of the diagonal brace 72 is detachably connected to the second end of the reinforcement member 71.

[0063] In specific implementation, each diagonal brace 72 can be a diagonal brace of D89*6. The number of the reinforcement sections can be 12.

[0064] Preferably, after the central column is installed, in order to ensure the verticality of the central column, a plurality of wind ropes are arranged through the tuyere on the furnace body of the blast furnace, one end of each wind rope is connected to the central column, and the other end of each wind rope is connected to the furnace body. In specific implementation, there may be four wind ropes.

[0065] Support structure installation step S3, installing the support structure and the hanging beam on the top of the central column.

[0066] Specifically, see Figures 1 to 4 The support structure 2 includes: a plurality of main beams 21, a plurality of first connecting beams 22 and a plurality of second connecting beams 23. The first end of each main beam 21 is connected to the top of the central column 1, the second end of each main beam 21 extends away from the central column 1, and the main beams 21 are evenly distributed along the circumference of the central column 1.

[0067] At least one first connecting beam 22 is disposed between any two adjacent main beams 21. Each second connecting beam 23 is parallel to the main beam 21, and each second connecting beam 23 is disposed between two adjacent main beams 21 and connected to the first connecting beam 22 at the corresponding position.

[0068] During installation, the main beam 21 is installed first, and then the annular suspension beam 3 is installed, and then each first connecting beam 22 and each second connecting beam 23 are installed.

[0069] When installing the main beam 21, the main beam 21 is installed and leveled using the inclined pull device 8, and the main beam 21 is connected to the blast furnace body through the safety rope 9. Figure 4 When lifting the main beam 21, the main beam 21 and the inclined-stayed device 8 are lifted together, one end of the inclined-stayed device 8 is connected to the top of the second end of the main beam 21 by bolts, and the other end of the inclined-stayed device 8 is connected to the connecting column 10 set on the top of the center column 1 by bolts. After the main beam 21 is in place, the inclined-stayed device 8 is used to level the main beam 21. After the leveling is completed, the safety rope 9 is installed on the lifting lug of the main beam 21. Specifically, the first end of the safety rope 9 is connected to the lifting lug of the main beam 21, and the second end of the safety rope 9 is connected to the furnace body.

[0070] More specifically, the first end of the safety rope 9 passes through the cooling plate of one layer of the blast furnace and is connected to the outside of the furnace. The second end of the safety rope 9 is connected to the lifting lug on the main beam 21 through a basket bolt, and the basket bolt is used to make the safety rope 9 slightly stressed. The second end of the safety rope 9 is fixed by a plurality of wire rope buckles. When using the wire rope buckle, tighten the U-bolt until the safety rope 9 is flattened by 1 / 3. Since the safety rope 9 is deformed after being stressed, the wire rope buckle needs to be tightened for the second time after the safety rope 9 is stressed to ensure the firmness of the joint. In order to facilitate the inspection of whether the wire rope buckle of the safety rope 9 is loose after being stressed, a safety rope clip needs to be added. The safety rope clip is installed about 500mm away from the last wire rope buckle, and the rope head of the safety rope 9 is released for a safety bend and then clamped with the main part of the safety rope 9. In this way, if the wire rope buckle slides, the safety bend will be straightened, which is easy to find at any time.

[0071] Each main beam 21 is installed and leveled by using the inclined-stayed device 8, and each main beam 21 is connected to the blast furnace body by a safety rope 9. The leveling of the inclined-stayed device 8 and the setting of the safety rope 9 on each main beam 21 are carried out according to the above method.

[0072] After the main beams 21 are installed, the hanging beams 3 are installed at the bottom of the main beams 21, and then the first connecting beams 22 and the second connecting beams 23 are installed. Specifically, an annular hanging beam 3 is installed below the main beams 21, and then the first connecting beams 22 and the second connecting beams 23 are connected in sequence.

[0073] After the main beams 21, the first connecting beams 22 and the second connecting beams 23 are installed, an adjusting cylinder 6 is sleeved on the second end of each main beam 21, and a baffle 12 is provided near the second end of each main beam 21. The jack abuts against the baffle 12, and the telescopic end of the jack pushes the end of the adjusting cylinder 6 to make the adjusting cylinder 6 fit with the blast furnace body.

[0074] Specifically, one end of each adjusting cylinder 6 is open and the other end is closed. The open end of each adjusting cylinder 6 is sleeved on the main beam 21 from the end of the second end of the main beam 21, and the outer wall of the closed end of each adjusting cylinder 6 is an inclined surface, and the outer wall of the closed end of each adjusting cylinder 6 is gradually inclined inward from the top to the bottom of the adjusting cylinder 6.

[0075] A baffle 12 is provided near the second end of each main beam 21, and a jack is provided at each baffle 12. The fixed end of the jack abuts against the baffle 12, and the telescopic end of the jack abuts against the open end of the adjusting cylinder 6. The telescopic end of the jack is used to push the adjusting cylinder 6 so that the adjusting cylinder 6 is in close contact with the furnace body of the blast furnace.

[0076] Preferably, a pad is provided at the closed end of each adjusting cylinder 6, and the pad is in contact with the furnace body of the blast furnace, so that the closed end of the adjusting cylinder 6 is closely fitted with the furnace body of the blast furnace 5. Specifically, the pad can be a 20 mm thick rubber.

[0077] The installation plate laying step S4 is to lay the installation plate on the supporting structure.

[0078] Specifically, after the main beams 21 , the suspension beams 3 , the first connecting beams 22 and the second connecting beams 23 are installed, the mounting plate is covered on the first connecting beams 22 and the second connecting beams 23 , and the mounting plate is detachably connected to the top of each main beam 21 .

[0079] The mounting plate includes: a plurality of blocks, each of which is detachably connected to each main beam 21, and each block forms a mounting plate. Preferably, each block is plug-connected to the corresponding main beam 21, and specifically, an L-shaped plug-in is provided on each main beam 21, and both ends of the plug-in are connected to the main beam 21, and there is a certain gap between the bending part of the plug-in and the main beam 21 to form a plug-in space, and the end of the block is set to be sharp-angled, and the end of the block is plugged into the plug-in space between the plug-in and the main beam 21.

[0080] Auxiliary device installation step S5, installing the auxiliary device on the hanging beam.

[0081] Specifically, the auxiliary device may be an electric hoist or other devices, and this embodiment does not impose any limitation on this. The auxiliary device is used to construct the refractory material in the furnace.

[0082] After the construction of the refractory materials in the furnace is completed, the tooling in the blast furnace will be dismantled. During the dismantling, a scaffold is set up in the blast furnace, and the scaffold is used as a working platform to dismantle the tooling in the blast furnace. The dismantling personnel enter and exit the furnace through the reserved tuyere of the furnace body, and use the ladder as the installation channel for the upper and lower tooling. According to the principle of overall balance, the installation plate is first removed by the furnace top crane, and the removed waste is transported out of the furnace through the furnace top manhole. Then, the electric hoist on the hanging beam is removed first, and the first connecting beams, the second connecting beams, the hanging beams and the main beams are removed in order, and transported out of the furnace through the reserved tuyere. Finally, the center column is transported out of the furnace using the furnace top crane, and the construction platform and the lowest section of the center column and the section adjacent to the lowest section are not dismantled, and are left in the furnace as a measure for installing the furnace tube.

[0083] It can be seen that in this embodiment, a construction platform is installed at the bottom of the blast furnace, and then a central column is installed on the construction platform, and then a supporting structure and a hanging beam are installed on the top of the central column, and a mounting plate is laid on the supporting structure to cover the supporting structure, and finally an auxiliary device is installed on the hanging beam to construct the refractory materials in the furnace. This method can prevent the furnace cylinder and the furnace body from interfering with each other and can be constructed synchronously, and the operation is simple and convenient, and it is easy to install and disassemble, thereby improving the construction efficiency of the refractory materials in the furnace, shortening the construction period of the refractory materials in the furnace, and ensuring the construction quality and safety.

[0084] It should be noted that the principles of the tooling and installation method for repairing the furnace in the blast furnace in the present invention are the same, and the relevant parts can be referenced to each other.

[0085] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0086] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A blast furnace repair tool, characterized in that: include: A central column (1), a supporting structure (2), a ring-shaped suspension beam (3) and a circular mounting plate; wherein: The bottom of the central column (1) is used to be arranged at the bottom of the blast furnace (5); The support structure (2) is detachably arranged on the top of the central column (1); The mounting plate is detachably covered on the top of the supporting structure (2); The suspension beam (3) is detachably arranged at the bottom of the support structure (2).

2. The tooling for repairing a blast furnace according to claim 1, characterized in that: The support structure (2) comprises: a plurality of main beams (21), a plurality of first connecting beams (22) and a plurality of second connecting beams (23); wherein: The first end of each main beam (21) is connected to the top of the central column (1), the second end of each main beam (21) extends away from the central column (1), and the main beams (21) are evenly distributed along the circumferential direction of the central column (1); At least one first connecting beam (22) is transversely arranged between any two adjacent main beams (21); Each of the second connecting beams (23) is parallel to the main beam (21), and each of the second connecting beams (23) is placed between two adjacent main beams (21) and connected to the first connecting beam (22) at a corresponding position; The mounting plate cover is arranged on each of the first connecting beams (22) and each of the second connecting beams (23) and is detachably connected to the top of each of the main beams (21); The suspension beam (3) is detachably arranged at the bottom of each main beam (21).

3. The tooling for repairing a blast furnace according to claim 2, characterized in that: Also includes: A plurality of adjustment cylinders (6) with one end open and the other end closed; wherein, Each of the adjustment cylinders (6) corresponds to each of the main beams (21) one by one; The open end of each adjusting cylinder (6) is sleeved on the main beam (21) from the end of the second end of the corresponding main beam (21), and the outer wall of the closed end of each adjusting cylinder (6) is an inclined surface and gradually tilts inward from the top to the bottom; A reinforcement structure is provided inside each adjusting cylinder (6) near the opening end.

4. The tooling for repairing a blast furnace according to claim 1, characterized in that: The central column (1) comprises: a plurality of mounting sections (11); wherein: The installation sections (11) are connected in sequence via flanges.

5. The tooling for repairing a blast furnace according to claim 1, characterized in that: Also includes: Strengthening institutions (7); among them, The reinforcing mechanism (7) is arranged at the bottom of the central column (1) and is connected to the bottom of the blast furnace (5).

6. The tooling for repairing a blast furnace according to claim 5, characterized in that: The reinforcing mechanism (7) comprises: a plurality of reinforcing sections; wherein: The reinforcement sections are arranged at intervals along the circumferential direction of the central column (1); Each of the reinforcement sections comprises: a reinforcement member (71) and an inclined brace (72); wherein a first end of the reinforcement member (71) is detachably connected vertically to the bottom of the central column (1), and a second end of the reinforcement member (71) extends away from the central column (1) and is connected to the bottom of the blast furnace (5); The first end of the diagonal brace (72) is detachably connected to the central column (1), and the second end of the diagonal brace (72) is detachably connected to the second end of the reinforcement member (71).

7. A method for installing a tool for repairing a blast furnace according to any one of claims 1 to 6, characterized in that: The steps include: Platform installation steps: install the construction platform at the bottom of the blast furnace; A center column installation step, installing the center column on the construction platform; A support structure installation step, installing a support structure and a hanging beam on top of the central column; A mounting plate laying step, laying the mounting plate on the supporting structure; The auxiliary device installation step is to install the auxiliary device on the hanging beam.

8. The method for installing the tooling for repairing a blast furnace according to claim 7, characterized in that: In the center column installation step, The central column comprises: a plurality of installation sections which are connected in sequence through flanges, the lowest installation section is connected to the construction platform, and a reinforcement mechanism is arranged at the lowest installation section.

9. The method for installing the tooling for repairing a blast furnace according to claim 7, characterized in that: In the support structure installation step, The support structure comprises: a plurality of main beams, a plurality of first connecting beams and a plurality of second connecting beams; wherein the first end of each of the main beams is connected to the top of the central column, the second end of each of the main beams extends away from the central column, and the main beams are evenly distributed along the circumferential direction of the central column; At least one first connecting beam is disposed transversely between any two adjacent main beams, each of the second connecting beams is parallel to the main beams, and each of the second connecting beams is placed between two adjacent main beams and connected to the first connecting beam at a corresponding position; When installing the main beam, the main beam is installed and leveled by using an inclined pulling device, and the main beam is connected to the blast furnace body by a safety rope; After the main beams are installed, a hanging beam is installed at the bottom of each main beam, and then each first connecting beam and each second connecting beam are installed; In the step of laying the mounting plate, the mounting plate is covered on each of the first connecting beams and each of the second connecting beams, and the mounting plate is detachably connected to the top of each of the main beams.

10. The method for installing tooling for repairing a blast furnace according to claim 9, characterized in that: After the installation of each of the main beams, each of the first connecting beams and each of the second connecting beams is completed, an adjusting cylinder is sleeved on the second end of each of the main beams, and each of the main beams is provided with a baffle near the second end, and a jack abuts against the baffle, and the telescopic end of the jack pushes the end of the adjusting cylinder to make the adjusting cylinder fit with the blast furnace body.

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