Heating furnace top refractory material replacing platform and erecting method thereof

Abstract

The invention discloses a furnace top refractory material replacement platform for a heating furnace and an erecting method of the furnace top refractory material replacement platform. Comprising a hanging frame extending downwards from an access hole, the hanging frame is composed of a plurality of vertically-arranged supporting rods and a plurality of transverse rods connected between the adjacent supporting rods, the tops of the supporting rods are arranged at the access hole, a plurality of longitudinal beams are longitudinally arranged at the bottoms of the supporting rods in the width direction of the furnace, and a plurality of transverse beams are transversely arranged on the longitudinal beams in the length direction of the furnace; the multiple cross beams and the multiple longitudinal beams are arranged in a crossed mode to form a standing platform. According to the platform, the working efficiency of refractory material replacement is improved, the safety of constructors is also improved, and compared with a conventional mode that a scaffold is erected on the ground, the platform is simpler in structure and convenient to manufacture, and labor and material cost is greatly saved.

Description

Technical Field

[0001] The present invention relates to the technical field of cold rolling equipment transformation, and particularly relates to a refractory replacement platform for the furnace top of a heating furnace and a construction method thereof. Background Art

[0002] The annealing furnace is an important equipment in the cold rolling post-treatment continuous line. Its main function is to process cold-rolled strip steel, eliminate cold rolling processing stress, and enable the cold-rolled strip steel to have good mechanical properties. It is widely used in continuous annealing and hot-dip galvanizing production lines. As the number of years of operation of the unit increases, the refractories at the top of the heating section cannot meet the production requirements, and the refractories at the top need to be replaced.

[0003] According to the existing technology, generally, a scaffolding is erected from the bottom to provide a necessary working platform. However, there are equipment such as turning rolls, heat insulation screens, CPC sensors, and multiple layers of radiant tubes inside most vertical annealing furnaces, which makes it very difficult to erect the scaffolding. Part of the radiant tubes must be removed to erect the scaffolding, resulting in high construction costs, and the disassembly of the scaffolding is also very laborious and time-consuming, affecting the construction progress.

[0004] Therefore, there is an urgent need for a top refractory installation platform for a heating furnace that is simple in construction, convenient to disassemble, and has a simple structure and low cost. Summary of the Invention

[0005] The purpose of the present application is to solve the problem that in the prior art, the height of the heating furnace (vertical annealing furnace) is relatively high and it is inconvenient to replace the refractories at the furnace top. Therefore, the present application provides a refractory replacement platform for the furnace top of a heating furnace and a construction method thereof. A hanging frame is arranged under the inspection opening at the top of the annealing furnace, and then a standing platform is arranged under the hanging frame, so that construction workers can stand on the standing platform to replace the refractories at the furnace top.

[0006] To achieve the above purpose, in a first aspect, the present invention provides a refractory replacement platform for the furnace top of a heating furnace, including a hanging frame extending from the inspection opening into the furnace body and its fixing components. The hanging frame is composed of multiple vertically arranged support rods and multiple cross bars connecting adjacent support rods.

[0007] The top of the support rod is arranged at the inspection opening, and multiple longitudinal beams are longitudinally arranged along the width direction of the furnace at the bottom of the support rod. Multiple cross beams are horizontally arranged along the length direction of the furnace on the longitudinal beams. The multiple cross beams and the longitudinal beams are arranged in a cross pattern to form a standing platform.

[0008] The fixing components are arranged on the upper surface of the furnace top and are fixedly connected to the support rods.

[0009] Adopting the above technical solution, there is no need to erect scaffolding around the heating furnace, which reduces costs. Compared with floor-standing scaffolding, the installation and disassembly are simpler, facilitating the construction workers to replace the refractory materials on the furnace top. The standing platform is composed of cross beams and longitudinal beams. Among them, the longitudinal beams are designed according to the width of the furnace body and are connected to the lower ends of the support rods. The cross beams are designed according to the length of the furnace body and are arranged on the longitudinal beams, intersecting with the longitudinal beams to form the standing platform, and the standing platform is supported by the hanging frame.

[0010] In the hanging frame of the present application, the cross bars are arranged between adjacent support rods, enhancing the structure of the hanging frame and making the hanging frame not easy to shake. In addition, the cross bars can also act as a ladder, making it more convenient for construction workers to enter along the hanging frame.

[0011] There are multiple inspection openings at the top of most heaters. In the present application, a hanging frame is provided for each inspection opening. The depth of the hanging frame is designed according to the elevation of the inspection opening and the upper plane of the heat insulation screen, so that the bottoms of multiple hanging frames are on the same plane; as many hanging frames as possible are set, and multiple hanging frames support the standing platform at the same time, making the standing platform more stable. The load-bearing capacity and stability are stronger.

[0012] In some embodiments, the fixing component includes a support ring disposed around the outer periphery of the inspection opening, and the support ring is disposed on the upper surface of the furnace top;

[0013] The upper end of the support rod protrudes above the inspection opening and is connected to the inner side of the support ring, and the support rod is suspended at the inspection opening through the support ring.

[0014] Adopting the above technical solution, the support ring is placed on the upper surface of the furnace, and the upper end of the support rod extends out of the inspection opening and is connected to the support ring, enabling the support ring to play a fixing role for the support rod; the structure is simple and convenient for personnel to install.

[0015] In some embodiments, a plurality of the cross bars are arranged from top to bottom between adjacent support rods, and the hanging frame has an exit at one end close to the standing platform. Construction workers can step on the cross bars and go down along the hanging frame and enter the standing platform.

[0016] Adopting the above solution, more cross bars are arranged on the support rods, making the hanging frame form a strong and stable cylindrical structure, enhancing the stability of the standing platform arranged at the bottom of the hanging frame. To ensure the normal entry and exit of personnel, an exit is provided at the position of the cylinder close to the platform for personnel to enter and exit.

[0017] In some embodiments, the hanging frame includes at least four support rods arranged in a square;

[0018] There are at least two longitudinal beams, which are respectively arranged at the lower ends of two longitudinally arranged support rods, and there are at least two cross beams, which are respectively arranged at both ends of the longitudinal beams;

[0019] The standing platform further includes a connecting rod, which is arranged between the cross beam and the longitudinal beam.

[0020] With the above solution, by connecting the connecting rod in the gap between the cross beam and the longitudinal beam, the structure of the standing platform is more stable, the gap is smaller and standing is safer, meeting the safety requirements; on the other hand, the number of cross beams and longitudinal beams is reduced, making the structure simpler and the self-weight lower.

[0021] In some embodiments, a gangplank is laid on the standing platform, and a fireproof cloth is also laid on the standing platform.

[0022] With the above solution, by laying a gangplank on the cross beam and the longitudinal beam, the gap between the cross beam and the longitudinal beam is covered. In some embodiments, it is convenient for personnel to work on the platform, and the fireproof cloth prevents small parts and electric welding sparks from splashing to the bottom.

[0023] In some embodiments, a trapezoidal footrest is further arranged on the standing platform according to the height of the furnace top; a CPC sensor is also arranged on the standing platform. The CPC sensor refers to the deviation correction roller sensor in the deviation correction control system, and the whole name is: Center Position Control, central position control. The CPC sensor is wrapped with a sensor protection box.

[0024] With the above solution, the trapezoidal footrest plays a role in increasing height, making it more convenient for construction personnel to replace the refractory materials at the top on the standing platform. The sensor protection box protects the CPC sensor.

[0025] In some embodiments, at least one support leg is arranged on the cross beam, and the bottom of the support leg supports on the furnace body.

[0026] With the above technical solution, the support legs connect the ends of multiple cross bars together and then support on the furnace body, improving the stability of the entire standing platform. Taking the vertical annealing furnace as an example, a better support position is at the furnace throat position. Therefore, a support leg is longitudinally arranged at the furnace throat position of the standing platform, and the support leg is placed on the top of the furnace throat, making the entire standing platform more stable.

[0027] In some embodiments, the inner shape of the support ring is the same as the shape of the inspection opening.

[0028] With the above technical solution, the support ring with the same shape can transfer the force of the hanging frame more evenly to the periphery of the inspection opening.

[0029] In some embodiments, the support ring is fixed at the position of the inspection port flange by bolts.

[0030] In some embodiments, there is a guardrail at the bottom of the hanging frame, and the guardrail is arranged on the support rod. The guardrail plays a protective role to prevent personnel from falling from the bottom of the hanging frame; in addition, there is also a guardrail on the side of the hanging frame, and the guardrail is arranged between the support rods to play a supporting role and is used to facilitate the construction personnel to install the longitudinal beam;

[0031] Adopting the above technical solution can prevent small parts and electric welding sparks from splashing to the bottom.

[0032] In some embodiments, there is also an inspection port at the working side position of the furnace throat of the vertical annealing furnace. One end of the standing platform is arranged at the furnace throat position, and the construction personnel can enter and exit the standing platform through the inspection port on the working side of the furnace throat.

[0033] In a second aspect, the present application also discloses a method for erecting a replacement platform for the refractory material on the top of a heating furnace. Using the above-mentioned replacement platform for the refractory material on the top of the furnace, the method includes the following steps:

[0034] S1. Manufacture the hanging frame and its fixing components according to the size of the inspection port;

[0035] S2. Manufacture the cross beam and the longitudinal beam according to the width and length of the furnace body;

[0036] S3. Lift the hanging frame into the furnace body through the inspection port, and connect and fix the upper end of the hanging frame with the inspection port by using bolts through the support ring of the hanging frame;

[0037] S4. The staff enters the hanging frame and arranges the cross beam at the bottom of the support rod;

[0038] S5. Arrange multiple longitudinal beams on the cross beam to form a standing platform.

[0039] Adopting this installation method can quickly complete the installation of the replacement platform for the refractory material on the top of the furnace, and the installation is convenient.

[0040] In some embodiments, in step S3, the support ring is fixed to the inspection port through a flange.

[0041] Generally speaking, compared with the prior art, the beneficial effects of the present invention are as follows: It provides a new idea for the replacement of the refractory material on the furnace top of a heating furnace or a similar furnace, eliminating the need for inefficient construction without a construction platform. The present application provides a replacement platform for the refractory material on the furnace top of a heating furnace, which improves the working efficiency of refractory material replacement and enhances the safety of construction workers. Compared with the conventional method of erecting scaffolding on the ground, the structure of the present application is simple, easy to manufacture, and greatly saves labor and material costs. In addition, it should be noted that equipment such as turning rolls, heat insulation screens, CPC sensors, and multiple layers of radiant tubes are often installed at the bottom of the annealing furnace. Therefore, it is very difficult to erect scaffolding from the bottom upwards. Instead, it is erected from the inspection opening downwards, avoiding the need for supports at the bottom and making the erection more convenient.

[0042] Other features and corresponding beneficial effects of the present application are described in the following part of the specification, and it should be understood that at least some of the beneficial effects are obvious from the description in the specification of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, the present invention, its features, shape, and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on showing the gist of the present invention.

[0044] Figure 1 Front view of the replacement platform for the refractory material on the furnace top in an embodiment of the present invention;

[0045] Figure 2 Left view of the replacement platform for the refractory material on the furnace top in an embodiment of the present invention;

[0046] Figure 3 Top view of the replacement platform for the refractory material on the furnace top in an embodiment of the present invention;

[0047] Figure 4 Schematic diagram of the position of the inspection opening of the replacement platform for the refractory material on the furnace top in an embodiment of the present invention.

[0048] Description of the reference numerals:

[0049] 1. Inspection opening; 2. Suspension frame; 21. Support rod; 22. Cross bar; 3. Longitudinal beam; 4. Cross beam; 5. Inspection opening on the working side; 6. Springboard; 7. Fireproof cloth; 8. Trapezoidal footrest; 9. Sensor protection box; 10. Support leg; 11. Support ring; 12. Guardrail; 13. Heat insulation screen; 14. Furnace throat; 15. Refractory material on the furnace top. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" 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 mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. To make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0052] Embodiment

[0053] See Figure 1 and 2 In this embodiment, a refractory replacement platform for the furnace top of a heating furnace is provided. It includes a hanging frame 2 extending downward from the maintenance opening 1 and its fixing components. The hanging frame 2 is composed of multiple vertically arranged support rods 21 and multiple cross bars 22 connected between adjacent support rods 21.

[0054] The top of the support rod 21 is arranged at the maintenance opening 1. Multiple longitudinal beams 3 are longitudinally arranged along the width direction of the furnace at the bottom of the support rod 21. Multiple cross beams 4 are transversely arranged along the length direction of the furnace on the longitudinal beams 3. The multiple cross beams 4 and longitudinal beams 3 are arranged in a cross pattern to form a standing platform.

[0055] The fixing component is arranged on the upper surface of the furnace top and is fixedly connected to the support rod 21.

[0056] When the refractory at the top needs to be replaced, the construction personnel enter the furnace body from the hanging frame 2 and stand on the standing platform to replace the refractory 15 on the upper furnace top. The standing platform is supported by the hanging frame 2, avoiding the complex structure at the bottom of the furnace body, with a simpler structure and more convenient construction. This application is particularly suitable for heating furnace bodies with a relatively high height.

[0057] See Figure 1 and 4, Specifically, taking a vertical annealing furnace as an example, generally there are three maintenance openings 1 at the top of the vertical annealing furnace. The maintenance openings 1 are square, and fixing components are arranged at the maintenance openings. The fixing components include a support ring 11 arranged around the outer periphery of the maintenance opening 1. The support ring 11 is in a frame shape. Specifically, the support ring 11 is composed of multiple steel rods connected end to end and then welded. The inner ring of the support ring 11 has the same shape as the maintenance opening 1 and corresponds to the position of the maintenance opening 1, and the outer ring is clamped on the upper surface of the top of the furnace body; a support rod 21 is arranged inside the support ring 11. The upper end of the support rod 21 is fixed to the inside of the support ring 11 by bolts. The lower end of the support rod 21 extends into the furnace body, and a longitudinal beam 3 is fixed to the lower end by bolts. Specifically, in this embodiment, four support rods 21 are fixed at each maintenance opening 1. The four support rods 21 are respectively arranged at the four end points of the support ring 11. The length of the support rod 21 is set according to the height of the maintenance opening 1, so that the lower ends of the multiple support rods 21 are on the same horizontal plane.

[0058] In some embodiments, the fixing component includes a support ring 11, and the support ring 11 and the flange opening of the maintenance opening 1 are detachably connected.

[0059] Specifically, the hanging frame 2 and the support ring 11 are an integral body and are connected into one body by bolts. During construction, the integral body of the hanging frame 2 and the support ring 11 is placed into the furnace body of the heating furnace through the maintenance opening, and then the support ring 11 is fixed at the position of the maintenance opening 1 by a flange or bolts. The depth of the hanging frame 2 is designed according to the elevation of the maintenance opening 1 and the upper plane of the heat insulation screen.

[0060] Specifically, there is a working side maintenance opening 5 at the working side position of the furnace throat of the vertical annealing furnace. One end of the standing platform is arranged at the furnace throat position, so that construction workers can enter and exit the standing platform from the working side maintenance opening 5 of the furnace throat.

[0061] See Figure 3 , multiple cross beams 4 are arranged between the support rods 21. Multiple cross bars 22 are arranged from top to bottom between the adjacent support rods 21. Construction workers step on the cross beams 4 from the top of the hanging frame 2 to the bottom of the hanging frame 2. At the same time, the cross beams 4 can also play a fixing role, making the frame structure of the whole hanging frame 2 more stable and making the supporting ability of the hanging frame 2 for the standing platform stronger. In addition, specifically, at the position of the hanging frame 2 close to the standing platform, there are some positions where the cross bars 22 are not arranged. This place is used as the entrance and exit for construction workers to enter and exit the hanging frame 2. Preferably, a switchable door is arranged at the exit. In some embodiments, the cross bars 22 do not pass through the bottom of the hanging frame 2, so that there is a large gap at the bottom of the hanging frame 2. Therefore, a guardrail 12 needs to be arranged at the bottom of the hanging frame 2 to prevent construction workers from falling from the bottom of the hanging frame 2; in addition, a guardrail is also arranged on the side of the hanging frame. The guardrail is arranged between the support rods 21 to play a supporting role and facilitate construction workers to install the longitudinal beam 3.

[0062] See Figure 1and 3 At the lower end of the support rod 21, six longitudinal beams 3 are longitudinally arranged. The longitudinal beams 3 are arranged in parallel and are all connected to the lower ends of the two support rods 21 arranged in the layout of the longitudinal beams 3 by bolts. Specifically, the length of the longitudinal beam 3 is set according to the width of the annealing furnace. The six longitudinal beams 3 have the same length. At the end of the longitudinal beam 3, two cross beams 4 are transversely arranged. The length of the cross beam 4 is set according to the length of the annealing furnace. Specifically, since the longitudinal beam is relatively long, it can be formed by connecting multiple profiles. Preferably, multiple cross beams 4 are also arranged between the two cross beams 4 according to the length of the longitudinal beam 3. Preferably, the cross beam 4 and the longitudinal beam 3 are connected by bolts. The longitudinal beam 3 and the cross beam 4 are cross-distributed to form a standing platform. In some embodiments, multiple connecting rods (not shown in the figure, added when the distance between the longitudinal beam 3 and the cross beam 4 is large) are also arranged between the longitudinal beam 3 and the cross beam 4. The connecting rods fill the gap between the longitudinal beam 3 and the cross beam 4, enabling construction workers to work above.

[0063] At the end of the cross beam 4, a support leg 10 is also arranged. The support leg 10 is lapped on the furnace body. Specifically, in this embodiment, the length of the support leg 10 is set according to the width of the furnace body, and the position is determined according to the position of the furnace throat 14, so that the support leg 10 is lapped at the position of the furnace throat 14 of the vertical annealing furnace, making the entire standing platform more stable. In some embodiments, a maintenance opening is also arranged at the position of the furnace throat 14, and the platform is erected below the maintenance opening, facilitating construction workers to access the standing platform from the maintenance opening. In some embodiments, the support leg 10 can also be in other shapes that are convenient for support, and its function is to enable the standing platform to support on the furnace throat 14 or other relatively stable internal structures of the furnace body.

[0064] The cross beam 4, the support leg 10 at the position of the furnace throat 14, and the 6 longitudinal beams 3 are connected by bolts to form a platform frame, significantly improving the stability of the standing platform.

[0065] Springboards 6 are laid on the frame. Preferably, the springboards 6 are made of wood or iron and are fixed by wire binding. The springboards 6 can have multiple pieces, and the length is determined according to the length of the heating furnace. Additionally, since the furnace body is relatively long, the springboards 6 are also formed by splicing multiple pieces. The multiple springboards are arranged transversely and laid on the cross beam and the longitudinal beam, covering the gap between the cross beam 4 and the longitudinal beam 3, making the standing platform safer.

[0066] In some embodiments, the standing platform is also erected on the heat insulation screen 13 inside the annealing furnace, making the standing platform more stable; specifically, the springboard 6 is erected on the heat insulation screen, and at the same time, it can play a role in protecting the heat insulation screen.

[0067] In some embodiments, a fireproof cloth 7 is also laid on the standing platform to prevent small parts and electric welding sparks from splashing to the bottom.

[0068] Specifically, the springboard 6, the cross beam 4, and the longitudinal beam 3 are about 20 - 50 mm away from the edge of the furnace body, just leaving a position for binding steel bars.

[0069] Due to the relatively high position of the top part of the furnace, in some embodiments, a trapezoidal footrest 8 is further provided on the standing platform. The trapezoidal footrest 8 is movable and can be carried to a specific position for use as needed. It is used to pad under the feet to increase height, playing a role in increasing height and facilitating the construction workers to work.

[0070] In this embodiment, there is also a working side maintenance opening at the position of the working side of the throat of the vertical annealing furnace. One end of the standing platform is arranged at the position of the throat, and the construction workers can enter and exit the standing platform through the working side maintenance opening of the throat.

[0071] In some embodiments, a CPC sensor is further provided on the standing platform. The CPC sensor is a deviation rectifying roller sensor, and a sensor protection box 9 is further arranged outside the CPC sensor.

[0072] The present invention also provides a method for erecting a replacement platform for the refractory material on the top of a heating furnace, which includes the following steps:

[0073] S1. Fabricate a hanging frame 2 and its fixing components according to the size of the maintenance opening 1;

[0074] S2. Fabricate cross beams 4 and longitudinal beams 3 according to the length and width of the furnace body;

[0075] S3. Lift the hanging frame 2 into the furnace body through the maintenance opening 1, and connect the upper end of the hanging frame 2 to the maintenance opening 1 through the fixing components;

[0076] S4. The staff enter the hanging frame 2 and arrange the cross beam 4 at the bottom of the support rod 21;

[0077] S5. Arrange multiple longitudinal beams 3 on the cross beam 4 to form a standing platform.

[0078] Specifically, according to the size of the inspection opening 1, use the support rods 21, cross bars 22 and guardrails 12 to fabricate the hanging basket 2, and make the support ring 11 according to the size of the inspection opening 1; then put the hanging basket 2 into the furnace body from the inspection opening 1, and use bolts to fix the support rods 21 at the top of the hanging basket 2 and the support ring 11. After that, the staff descends to the bottom of the hanging basket 2, and use bolts to connect the longitudinal beams 3 to the support rods 21 through bolts, and then connect the cross beams 4 to the longitudinal beams 3 through bolts. Set support legs 10 on the cross beams 4, and connect the support legs 10 to the position of the throat 14, so that the support legs 10, 6 longitudinal beams 3 and cross beams 4 are connected by bolts to form a platform frame. Set multiple connecting rods between the frames to reduce the gaps on the standing platform, and then lay the jump boards 6 on the standing platform; lay a layer of fireproof cloth 7 on the surface of the standing platform to prevent small parts and electric welding sparks from splashing to the bottom. At some positions where the furnace top is relatively high, a trapezoidal footrest 8 is also provided. The trapezoidal footrest 8 is movable and can be moved to a higher position for use as needed, for stepping on to increase height, so as to facilitate the construction personnel to stand on it to replace the refractory material 15 on the furnace top.

[0079] After the replacement of the furnace top refractory material is completed, the construction personnel remove the furnace top refractory material replacement platform in the reverse order of installation.

[0080] Those skilled in the art should understand that those skilled in the art can realize the variations in combination with the prior art and the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present invention and will not be elaborated here. The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific implementation manners, and the equipment and structures not described in detail should be understood to be implemented in a common manner in the art; any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes, which does not affect the essence of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the protection of the technical solution of the present invention.

Claims

1. A heating furnace roof refractory replacement platform, characterized in that: include, A hanging frame (2) extending from the inspection opening (1) toward the interior of the furnace body and a fixing assembly thereof, wherein the hanging frame (2) is composed of a plurality of vertically arranged support rods (21) and a plurality of cross rods (22) connected between adjacent support rods (21); The top of the support rod (21) is arranged at the inspection opening (1), a plurality of longitudinal beams (3) are arranged longitudinally at the bottom of the support rod (21) along the width direction of the furnace, a plurality of cross beams (4) are arranged transversely on the longitudinal beams (3) along the length direction of the furnace, and a plurality of the cross beams (4) and the longitudinal beams (3) are cross-arranged to form a standing platform; The fixing assembly is arranged on the upper surface of the furnace top and is fixedly connected to the support rod (21).

2. A heating furnace roof refractory replacement platform according to claim 1, characterized in that: The fixing assembly comprises a support ring (11) arranged around the outer periphery of the inspection opening (1); The upper end of the support rod (21) is higher than the inspection opening (1) and is connected to the inner side of the support ring (11), and the support rod (21) is suspended on the inspection opening (1) via the support ring (11).

3. A heating furnace roof refractory replacement platform according to claim 2, characterized in that: The inner shape of the support ring (11) is the same as the shape of the inspection opening (1).

4. A heating furnace roof refractory replacement platform according to any one of claims 1 to 3, characterized in that: A plurality of the cross bars (22) are arranged from top to bottom between adjacent support bars (21); the hanging frame (2) has an exit at one end close to the standing platform, and construction workers can step on the cross bars (22), go down along the hanging frame (2), and enter the standing platform.

5. A heating furnace roof refractory replacement platform according to any one of claims 1 to 3, characterized in that: The hanging frame (2) comprises at least four support rods (21) arranged in a square shape; There are at least two longitudinal beams (3), which are respectively arranged at the lower ends of two longitudinally arranged support rods (21); there are at least two transverse beams (4), which are respectively arranged at both ends of the longitudinal beam (3); The standing platform further comprises a connecting rod, and the connecting rod is arranged between the cross beam and the longitudinal beam.

6. A heating furnace roof refractory replacement platform according to any one of claims 1 to 3, characterized in that: A springboard (6) is laid on the standing platform, and a fireproof cloth (7) is also laid on the standing platform.

7. A heating furnace roof refractory replacement platform according to any one of claims 1 to 3, characterized in that: The standing platform is also provided with a trapezoidal footrest (8) according to the height of the furnace top; A CPC sensor is also provided on the standing platform, and the CPC sensor is wrapped with a sensor protection box (9).

8. A heating furnace roof refractory replacement platform according to any one of claims 1 to 3, characterized in that: At least one supporting leg (10) is also provided on the crossbeam (4), and the bottom of the supporting leg (10) is supported on the furnace body.

9. A heating furnace roof refractory replacement platform according to any one of claims 1 to 3, characterized in that: A guardrail (12) is provided at the bottom of the hanging frame (2).

10. A method for setting up a refractory replacement platform for a heating furnace roof, characterized in that: The furnace top refractory replacement platform according to any one of claims 1 to 9 comprises the following steps: S1. manufacturing the hanging frame (2) and its fixing components according to the size of the inspection opening (1); S2. Manufacturing the cross beam (4) and the longitudinal beam (3) according to the width and length of the furnace body; S3, hanging the hanging frame (2) to the inside of the furnace body through the inspection opening (1), and connecting the upper end of the hanging frame (2) to the inspection opening (1) through the fixing assembly; S4, a worker enters the hanging frame (2) and sets the crossbeam (4) at the bottom of the support rod (21); S5. Arrange a plurality of longitudinal beams (3) on the transverse beam (4) to form a standing platform.

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