Hanging structure for heating furnace open-hearth top, heating furnace open-hearth top and construction method

Abstract

The invention discloses a hanging structure for a heating furnace open-hearth top, the heating furnace open-hearth top and a construction method, and relates to the technical field of furnace refractory castable structures and construction. Comprising a top formwork, side formworks arranged on the periphery of the top formwork, a plurality of anchoring bricks detachably arranged on the top formwork and a top hanging assembly connected to the tops of all the anchoring bricks, the top hanging assembly is hung on a steel beam assembly, and all the anchoring bricks are vertically arranged on the top formwork and tensioned between the hanging assembly and the top formwork. A hole is formed in the upper portion of the anchoring brick to serve as a hanging hole, a hole is formed in the lower portion of the anchoring brick to serve as an installation fixing hole, the structure of the anchoring brick is in a full-movable mode and completely adapts to thermal expansion stress of castable in all directions, all the anchoring bricks are evenly stressed, fastening can be conducted again before use and in the use process, and all the anchoring bricks are evenly stressed.

Description

Technical Field

[0001] The invention relates to the technical field of furnace refractory castable structure and construction, and more specifically to the technical field of a hanging structure for a heating furnace flat roof, a heating furnace flat roof and a construction method. Background Art

[0002] The operating temperature of industrial heating furnaces is generally above 1200℃. The lining refractory materials use high-temperature fibers, but mainly use heavy refractory bricks or heavy amorphous refractory castables. Due to the superiority of refractory castables, they have mostly replaced refractory bricks.

[0003] Generally, when the furnace width (span) of a heating furnace is less than 3.0 meters, the furnace roof mainly uses an arch structure, which has better stability. When the furnace width (span) is ≥3.0, the arch's own weight + thermal expansion stress, the arch's thrust on the arch angle is large, and the requirements for the steel structure of the shell are very high. If the arch angle is not firm, the arch is easy to sink and collapse, and the chord height (sagittal) of the arch is high at this time, and the furnace space is difficult to meet the use requirements. Therefore, a flat furnace roof structure of refractory castables is generally used, and the top is anchored with refractory materials. Bricks are embedded in castables for hanging. The characteristics of anchor bricks are high temperature resistance and high strength, but they are not resistant to bending and are easy to break. Due to the thermal expansion of castables, their position will move with the change of temperature. The movement of the castable position will drive the movement of the anchor brick position. Therefore, the anchor brick and the hanging system must be movable structures. If the hanging structure is unreasonable or the construction method is inappropriate, the anchor bricks will easily be subjected to uneven force or shear stress, resulting in the fracture of the anchor bricks. When a large number of them are broken, it will lead to the overall collapse of the furnace roof. This often happens in the industry.

[0004] After many years of research and application of flat furnace roof structures, the industry has developed a variety of structural forms and construction methods, but there are often cases of failure. The reasons include unreasonable design structure, incorrect construction operation methods, and the complexity of construction that makes the process uncontrolled. Summary of the invention

[0005] The purpose of the present invention is to solve the technical problem that the existing flat furnace roof structure has an unreasonable hanging structure or an inappropriate construction method, which easily causes the anchor bricks to be subjected to uneven force or shear stress, resulting in the fracture of the anchor bricks. When a large number of anchor bricks are broken, the overall collapse of the furnace roof will be caused. The present invention provides a hanging structure and a construction method for the flat furnace roof of a heating furnace.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] The first aspect of the present invention provides a hanging structure for the flat roof of a heating furnace, including a top formwork, side formworks arranged around the top formwork, a plurality of anchoring bricks detachably arranged on the top formwork, and a top hanging assembly connected to the tops of all the anchoring bricks. The top hanging assembly is hung on a steel beam assembly. Each anchoring brick is vertically arranged on the top formwork, and each anchoring brick is tensioned between the hanging assembly and the top formwork.

[0008] Specifically, a hole is made in the upper part of the anchoring brick as a hanging hole, and a hole is made in the lower part as an installation and fixing hole. The structure of the anchoring brick is a fully movable form, which can fully adapt to the thermal expansion stress in all directions of the castable, so that all the anchoring bricks are evenly stressed. Tightening can be carried out again before and during use to make each anchoring brick evenly stressed.

[0009] In one embodiment, a plurality of anchoring bricks are detachably arranged in a rectangular array at the bottom of the removed top formwork.

[0010] In one embodiment, it further includes a horizontal transverse tie rod connected to the tops of all the anchoring bricks in each row. The hanging assembly includes a plurality of horizontal hanging units arranged side by side on the steel beam assembly, and the bottom of each horizontal hanging unit is hung with the corresponding horizontal transverse tie rod.

[0011] In one embodiment, the horizontal hanging unit includes a double-groove steel beam horizontally arranged between two steel beams, and a plurality of screw rod hanging hooks arranged at equal intervals horizontally on the double-groove steel beam. The top of each screw rod hanging hook is fixed on the double-groove steel beam through a locking assembly, and the bottom of each screw rod hanging hook is a hook for hanging the corresponding horizontal transverse tie rod.

[0012] In one embodiment, a plurality of gaps are arranged on the double-groove steel beam to cooperate with the plurality of screw rod hanging hooks, and external threads are arranged at the tops of the screw rod hanging hooks.

[0013] In one embodiment, the top of each screw rod hanging hook passes through the corresponding gap and is locked by a locking assembly. The locking assembly includes a square gasket, a spring, and a nut sleeved on the external thread at the top of the corresponding screw rod hanging in sequence from bottom to top.

[0014] Specifically, a spring is fastened on the upper part of the screw rod hanging as a buffer.

[0015] In one embodiment, horizontal locking holes are arranged at the bottoms of the anchoring bricks, and the anchoring bricks are locked on the top formwork through locking wires passing through the horizontal locking holes.

[0016] In one embodiment, the material of each anchoring brick is high-aluminum refractory material.

[0017] In one embodiment, the length of each anchoring brick is 200 mm - 700 mm;

[0018] The upper part of each anchor brick is provided with a hanging hole with a diameter of 10mm-30mm;

[0019] The lower part of each anchor brick is provided with a mounting hole with a diameter of 2mm-30mm;

[0020] Each mounting hole is fixed to the bottom template with a locking wire, and the diameter of the locking wire is 1mm-4mm;

[0021] The diameter of each horizontal transverse tie rod is 10mm-30mm.

[0022] The upper part of each screw rod hanging hook is an external thread, and the lower part is a U-shaped hook. The total length of each screw rod hanging hook is 100mm-800mm, and the diameter of each screw rod hanging hook is 6mm-30mm;

[0023] The model of each double-channel steel beam is channel steel 5#-20#, connected back to back, the spacing between two adjacent double-channel steel beams is 10mm-50mm, and the total length of each double-channel steel beam is 200mm-2000mm;

[0024] The length and width of the square gasket are 30mm×30mm-60mm×60mm, the thickness of the square gasket is 1mm-12mm, the wire diameter of the spring is 1mm-4mm, the inner diameter of the spring is 10mm-40mm, and the height of the spring is 10mm-50mm.

[0025] The second aspect of the present invention provides a flat furnace roof of a heating furnace, including the above-mentioned hanging structure for the flat furnace roof of a heating furnace, and also includes a refractory castable layer, a fiber blanket layer, and a lightweight castable layer cast in sequence on the top template, and the height of the lightweight castable layer is lower than the height of the horizontal transverse tie rod.

[0026] A third aspect of the present invention provides a construction method for a heating furnace flat roof, which is used to install the above-mentioned heating furnace flat roof, using the above-mentioned hanging structure for the heating furnace flat roof, and comprises the following steps:

[0027] S1. Installation process of the hanging structure: install the steel beam assembly as the furnace roof tension steel, and place multiple double-slot steel beams at equal intervals on the lower flange of the steel beam assembly; the horizontal transverse tie rod is evenly passed through the hanging holes of multiple anchor bricks in the same row, the lower end of the screw rod hooks the horizontal transverse tie rod, the upper end of the screw rod hook passes through the double-slot steel beam, and the upper part is fastened with square washers, springs and nuts to suspend the anchor bricks in the air, and the lower part of each anchor brick is fixed to the bottom template through the installation fixing hole with a locking steel wire;

[0028] S2: Casting process: construct the refractory castable layer, fiber blanket layer and lightweight castable layer, tighten the nuts once before hardening and demoulding, use the reaction force of the spring to make the anchor bricks evenly stressed, and then demould.

[0029] Specifically, since the castable has moisture, it needs to be baked. After the furnace baking is completed, it is tightened again to eliminate the effect of the thermal stress of the castable and make the stress on the anchor bricks uniform again. During the use process, such as in a forging furnace, when the charging and discharging machine collides with the furnace top and causes the furnace top to be displaced and deformed, some of the anchor bricks are not stressed or stressed unevenly. The nuts can be tightened again to make the stress on the anchor bricks uniform. This construction method is simple, highly operable, and less affected by human factors. Problems that occur after construction, after furnace baking, and during the use process can all be tightened multiple times to make the stress on the anchor bricks uniform again, and no single anchor brick will break due to overload.

[0030] The beneficial effects of the present invention are as follows:

[0031] 1. The present invention is reasonably designed. A hole is made in the upper part of the anchor brick as a hanging hole, and a hole is made in the lower part as an installation and fixing hole. The structure of the anchor brick is a fully movable form, which completely adapts to the thermal expansion stress in all directions of the castable, making the stress on all anchor bricks uniform. Before use and during the use process, it can be tightened again to make the stress on each anchor brick uniform.

[0032] 2. During the use process, such as in a forging furnace, when the charging and discharging machine collides with the furnace top and causes the furnace top to be displaced and deformed, some of the anchor bricks are not stressed or stressed unevenly. The nuts can be tightened again to make the stress on the anchor bricks uniform. This construction method is simple, highly operable, and less affected by human factors. Problems that occur after construction, after furnace baking, and during the use process can all be tightened multiple times to make the stress on the anchor bricks uniform again, and no single anchor brick will break due to overload. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0034] Figure 1 is a schematic structural diagram of a hanging structure for a flat furnace top of a heating furnace according to the present invention;

[0035] Figure 2 is Figure 1 a side view of

[0036] Figure 3 is Figure 2 a partial enlarged view of

[0037] Figure 4 is Figure 1 a schematic structural diagram after pouring;

[0038] Figure 5 Yes Figure 2 Schematic diagram of the structure after pouring;

[0039] Reference numerals: 1, anchor brick; 2, refractory castable layer; 3, fiber blanket layer; 4, lightweight castable layer; 5, horizontal cross bar; 6, screw rod hanging hook; 7, double-groove steel beam; 8, square gasket; 9, spring; 10, nut; 11, steel beam assembly; 12, top formwork; 13 - locking wire. Detailed implementation manners

[0040] To make the technical problems, technical solutions and technical effects of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0042] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0043] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention 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 cannot be understood as a limitation of the present invention.

[0044] Embodiment 1

[0045] As Figures 1 to 5As shown in the figure, this embodiment provides a hanging structure for the flat roof of a heating furnace, which includes a top formwork 12, side formworks arranged around the top formwork 12, a plurality of anchoring bricks 1 detachably arranged on the top formwork 12, and a top hanging assembly connected to the tops of all the anchoring bricks 1. The top hanging assembly is hung on a steel beam assembly 11. Each anchoring brick 1 is vertically arranged on the top formwork 12, and each anchoring brick 1 is tightened between the hanging assembly and the top formwork 12.

[0046] Specifically, a hole is made in the upper part of the anchoring brick 1 as a hanging hole, and a hole is made in the lower part as an installation and fixing hole. The structure of the anchoring brick 1 is in a fully movable form, which can completely adapt to the thermal expansion stress in all directions of the castable, so that all the anchoring bricks 1 are evenly stressed. Tightening can be carried out again before and during use to make each anchoring brick 1 evenly stressed.

[0047] Embodiment 2

[0048] As Figures 1 to 3 As shown in the figure, this embodiment provides a hanging structure for the flat roof of a heating furnace, which includes a top formwork 12, side formworks arranged around the top formwork 12, a plurality of anchoring bricks 1 detachably arranged on the top formwork 12, and a top hanging assembly connected to the tops of all the anchoring bricks 1. The top hanging assembly is hung on a steel beam assembly 11. Each anchoring brick 1 is vertically arranged on the top formwork 12, and each anchoring brick 1 is tightened between the hanging assembly and the top formwork 12.

[0049] A plurality of anchoring bricks 1 are detachably arranged in a rectangular array at the bottom of the removed top formwork 12.

[0050] It further includes a horizontal transverse tie rod 5 connected to the tops of all the anchoring bricks 1 in each row. The hanging assembly includes a plurality of horizontal hanging units arranged side by side on the steel beam assembly 11, and the bottom of each horizontal hanging unit is hung on the corresponding horizontal transverse tie rod 5.

[0051] The horizontal hanging unit includes a double-groove steel beam 7 horizontally arranged between two steel beams, and a plurality of screw rod hanging hooks 6 arranged at equal intervals horizontally on the double-groove steel beam 7. The top of each screw rod hanging hook 6 is fixed on the double-groove steel beam 7 through a locking assembly. The bottom of each screw rod hanging hook 6 is a hook for hanging the corresponding horizontal transverse tie rod 5.

[0052] A plurality of gaps matching the plurality of screw rod hanging hooks 6 are arranged on the double-groove steel beam 7, and external threads are arranged at the tops of the screw rod hanging hooks 6.

[0053] The top of each screw rod hanging hook 6 passes through the corresponding gap and is locked through a locking assembly. The locking assembly includes a square gasket 8, a spring 9, and a nut 10 sleeved on the external thread at the top of the corresponding screw rod hanging in sequence from bottom to top.

[0054] Specifically, a spring 9 is fastened on the upper part of the screw rod hanging as a buffer.

[0055] A horizontal locking hole is provided at the bottom of each anchoring brick 1, and each anchoring brick 1 is locked on the top formwork 12 by a locking wire 13 passing through the horizontal locking hole.

[0056] The material of each anchoring brick 1 is high-aluminum refractory material.

[0057] Example 3

[0058] This example is further optimized on the basis of Example 1 or Example 2. Specifically:

[0059] The length of each anchoring brick 1 is 200 mm - 700 mm;

[0060] Hanging holes with a diameter of 10 mm - 30 mm are provided at the upper part of each anchoring brick 1;

[0061] Installation holes with a diameter of 2 mm - 30 mm are provided at the lower part of each anchoring brick 1;

[0062] Each installation hole is fixed to the bottom formwork with a locking wire 13, and the diameter of the locking wire 13 is 1 mm - 4 mm;

[0063] The diameter of each horizontal cross bar 5 is 10 mm - 30 mm.

[0064] The upper part of each screw rod hanging hook 6 is an external thread, and the lower part is a U-shaped hook. The total length of each screw rod hanging hook 6 is 100 mm - 800 mm, and the diameter of each screw rod hanging hook 6 is 6 mm - 30 mm;

[0065] The model of each double-channel steel beam 7 is channel steel 5# - 20#, and they are connected back to back. The distance between two adjacent double-channel steel beams 7 is 10 mm - 50 mm, and the total length of each double-channel steel beam 7 is 200 mm - 2000 mm;

[0066] The length and width of the square gasket 8 are 30 mm × 30 mm - 60 mm × 60 mm, the thickness of the square gasket 8 is 1 mm - 12 mm, the wire diameter of the spring 9 is 1 mm - 4 mm, the inner diameter of the spring 9 is 10 mm - 40 mm, and the height of the spring 9 is 10 mm - 50 mm.

[0067] Example 4

[0068] This example is further optimized on the basis of Example 3. Specifically:

[0069] The length of the anchoring brick is 450 mm.

[0070] The hanging hole at the upper part of the anchoring brick, with a size of Φ20 mm.

[0071] The installation hole at the lower part of the anchoring brick, with a size of Φ8 mm.

[0072] The installation holes at the lower part of the anchor bricks are fixed to the bottom formwork with locking steel wires, and the diameter of the locking steel wires is Φ2mm.

[0073] The hanging cross round steel has a diameter of Φ18mm.

[0074] The screw rod hanging hook has a thread at the upper part and a U-shaped hook at the lower part, with a total length of 300mm and a diameter of Φ14mm.

[0075] The double-channel steel beam is No. 6.3# channel steel, connected back to back with a spacing of 20mm.

[0076] The combination of square washers, springs and nuts makes the force on the anchor bricks uniform. The square washer is 45×45mm, with a thickness of 3mm. The spring wire diameter is Φ2mm, the inner diameter is Φ15mm, and the height is 25mm.

[0077] Example 5

[0078] This example provides a flat roof for a heating furnace, which includes the above-mentioned hanging structure for the flat roof of the heating furnace, and also includes a refractory castable layer 2, a fiber blanket layer 3, and a light castable layer 4 that are sequentially cast on the top formwork 12. The height of the light castable layer 4 is lower than the height of the horizontal transverse tie rod 5.

[0079] Example 6

[0080] This example provides a construction method for the flat roof of a heating furnace, which is used to install the above-mentioned flat roof of the heating furnace and adopts the above-mentioned hanging structure for the flat roof of the heating furnace, including the following steps:

[0081] S1. Installation process of the hanging structure: Install the steel beam assembly 11 as the roof tension and fixation steel section, and freely place multiple double-channel steel beams 7 at equal intervals on the lower flange of the steel beam assembly 11; The horizontal transverse tie rod 5 uniformly passes through the hanging holes of multiple anchor bricks 1 in the same row. The lower end of the screw rod hanging hook 6 hooks the horizontal transverse tie rod 5. The upper end thread of the screw rod hanging hook 6 passes through the double-channel steel beam 7, and the upper part is fastened with a square washer 8, a spring 9 and a nut 10 to suspend the anchor brick 1. The lower part of each anchor brick 1 is fixed to the bottom formwork through the installation and fixing holes with locking steel wires 13.

[0082] S2: Pouring process: Carry out the construction of the refractory castable layer 2, the fiber blanket layer 3, and the light castable layer 4. Before hardening and demolding, tighten the nut 10 once. Utilize the reaction force of the spring 9 to make the force on the anchor brick 1 uniform, and then demold.

[0083] Specifically, since there is moisture in the castable, baking is required. After the furnace baking is completed, tightening is carried out again to eliminate the effect of the thermal stress of the castable, so that the anchor brick 1 is stressed evenly again. During the use process, such as in a forging furnace, when the charging and discharging machine collides with the furnace top and causes the furnace top to be misaligned and deformed, some of the anchor bricks 1 are not stressed or are unevenly stressed. The nut 10 can be tightened again to make the anchor brick 1 stressed evenly. This construction method is simple, highly operable, and less affected by human factors. Problems that occur after construction, after furnace baking, and during the use process can be tightened multiple times to make the anchor brick 1 stressed evenly again, and no single anchor brick 1 will be overloaded and fractured.

Claims

1. A hanging structure for a flat furnace roof of a heating furnace, characterized in that: The invention comprises a top formwork (12), a side formwork arranged around the top formwork (12), a plurality of anchor bricks (1) detachably arranged on the top formwork (12), and a top hanging assembly connected to the tops of all the anchor bricks (1), wherein the top hanging assembly is hung on a steel beam assembly (11), each of the anchor bricks (1) is vertically arranged on the top formwork (12), and each of the anchor bricks (1) is tightened between the hanging assembly and the top formwork (12).

2. The hanging structure for a flat furnace roof of a heating furnace according to claim 1, characterized in that: The plurality of anchoring bricks (1) are detachably arranged in a rectangular array at the bottom of the removal top template (12).

3. The hanging structure for a flat furnace roof of a heating furnace according to claim 2, characterized in that: It also includes a horizontal transverse tie rod (5) connected to the top of all the anchor bricks (1) in each row, and the hanging assembly includes a plurality of transverse hanging units horizontally arranged in parallel on the steel beam assembly (11), and the bottom of each transverse hanging unit is hung with the corresponding horizontal transverse tie rod (5).

4. The hanging structure for a flat furnace roof of a heating furnace according to claim 3, characterized in that: The transverse hanging unit comprises a double-groove steel beam (7) horizontally arranged between two steel beams, and a plurality of screw rod hanging hooks (6) horizontally arranged on the double-groove steel beam (7) at equal intervals, the top of each screw rod hanging hook (6) being fixed to the double-groove steel beam (7) by a locking assembly, and the bottom of each screw rod hanging hook (6) being a bent hook, and the bent hook is used to hang the corresponding horizontal transverse pull rod (5).

5. The hanging structure for a flat furnace roof of a heating furnace according to claim 4, characterized in that: The double-groove steel beam (7) is provided with a plurality of gaps that cooperate with the plurality of screw rod hanging hooks (6), and the top of each screw rod hanging hook (6) is provided with an external thread.

6. The hanging structure for a flat furnace roof of a heating furnace according to claim 5, characterized in that: The top of each screw rod hanging hook (6) passes through the corresponding gap and is locked by the locking assembly, and the locking assembly includes a square gasket (8), a spring (9) and a nut (10) which are sequentially sleeved on the external thread of the corresponding screw rod hanging top from bottom to top.

7. The hanging structure for a flat furnace roof of a heating furnace according to claim 6, characterized in that: A horizontal locking hole is provided at the bottom of each anchor brick (1), and each anchor brick (1) is locked on the top template (12) by a locking steel wire (13) passing through the horizontal locking hole.

8. The hanging structure for a flat furnace roof of a heating furnace according to claim 7, characterized in that: The length of each anchor brick (1) is 200 mm-700 mm; The upper part of each anchor brick (1) is provided with a hanging hole with a diameter of 10mm-30mm; The lower part of each anchor brick (1) is provided with a mounting hole with a diameter of 2 mm to 30 mm; Each of the mounting holes is fixed to the bottom template by means of the locking steel wire (13), and the diameter of the locking steel wire (13) is 1 mm to 4 mm; The diameter of each horizontal transverse tie rod (5) is 10mm-30mm; The upper part of each screw rod hanging hook (6) is an external thread, and the lower part is a U-shaped hook. The total length of each screw rod hanging hook (6) is 100mm-800mm, and the diameter of each screw rod hanging hook (6) is 6mm-30mm; The model of each double-channel steel beam (7) is channel steel 5#-20#, the distance between two adjacent double-channel steel beams (7) is 10mm-50mm, and the total length of each double-channel steel beam (7) is 200mm-2000mm; The length and width of the square gasket (8) are 30mm×30mm-60mm×60mm, the thickness of the square gasket (8) is 1mm-12mm, the wire diameter of the spring (9) is 1mm-4mm, the inner diameter of the spring (9) is 10mm-40mm, and the height of the spring (9) is 10mm-50mm.

9. A heating furnace flat roof, comprising a hanging structure for a heating furnace flat roof according to any one of claims 1 to 8, characterized in that: It also includes a refractory castable layer (2), a fiber blanket layer (3), and a lightweight castable layer (4) which are sequentially cast on the top template (12), wherein the height of the lightweight castable layer (4) is lower than the height of the horizontal transverse tie rod (5).

10. A construction method for a heating furnace flat roof, used for installing a heating furnace flat roof as claimed in claim 9, using a hanging structure for a heating furnace flat roof as claimed in any one of claims 1 to 8, characterized in that: The steps include: S1, the installation process of the hanging structure: installing the steel beam assembly (11) as the furnace roof tension steel, and placing multiple double-slot steel beams (7) at equal intervals on the lower flange of the steel beam assembly (11); the horizontal transverse tie rod (5) is evenly passed through the hanging holes of multiple anchor bricks (1) in the same row, the lower end of the screw rod hanging hook (6) is hooked on the horizontal transverse tie rod (5), and the upper end of the screw rod hanging hook (6) is threaded through the double-slot steel beam (7), and the upper part is fastened with a square gasket (8), a spring (9) and a nut (10) to suspend the anchor brick (1), and the lower part of each anchor brick (1) is fixed to the bottom template through the installation fixing hole with a locking steel wire (13); S2: Casting process: The refractory castable layer (2), the fiber blanket layer (3) and the lightweight castable layer (4) are constructed, and the nuts (10) are tightened once before hardening and demoulding. The reaction force of the spring (9) is used to make the anchor brick (1) evenly stressed, and then demoulding is performed.

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