Fire-resistant fiber composite fixing structure

Abstract

The utility model discloses a kind of refractory fiber composite fixed structures, it is related to furnace refractory fiber construction technology field, including the refractory fiber fixed monomer of splicing multiple blocks, each refractory fiber fixed monomer includes the section steel frame of upper portion, two side steel plates welded in the both sides of section steel frame, refractory fiber combination layer being arranged below section steel frame, multiple rows of stainless steel net shape anchorage devices being evenly distributed in the bottom of section steel frame and with pull rod being inserted in the bottom of each row stainless steel net shape anchorage device, pull rod both ends are welded on two side steel plates, and multiple rows of stainless steel net shape anchorage device lower end is inserted into refractory fiber combination layer.The fiber module of the utility model makes that shrinkage is not big at high temperature, gap between fiber module is smaller, fiber module will not collapse, and stability is strong.

Description

Technical Field

[0001] This utility model relates to the field of refractory fiber construction technology for furnaces and kilns, and more specifically to the field of refractory fiber composite fixing structure technology. Background Technology

[0002] Industrial forging furnaces typically operate at temperatures above 1200℃. High-temperature fibers, due to their low density and low heat absorption, are widely used in the lining of furnace walls, roofs, and doors. The installation method often involves extruding the fibers into 300×300×300 folded blocks, then using heat-resistant steel U-shaped parts + rod insertion or fiber-embedded diamond-shaped parts + screws (referred to as fiber modules). Because fiber modules exhibit significant shrinkage at high temperatures, the gaps between them are large. Due to the numerous and small gaps, subsequent sealing is difficult and cannot be properly achieved. Hot air can easily seep in, causing the fiber anchors to burn out and leading to module collapse.

[0003] Based on the current usage situation, the problems with the furnace top and furnace door are particularly prominent due to the influence of fiber gravity, hot air rising and furnace pressure. In a short period of time, problems will appear one after another after a few months of use, which seriously affects the production activities of enterprises. Utility Model Content

[0004] The purpose of this utility model is to provide a refractory fiber composite fixing structure in order to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: This utility model provides a refractory fiber composite fixing structure, including multiple spliced ​​refractory fiber fixing units. Each refractory fiber fixing unit includes an upper steel frame, two side steel plates welded to both sides of the steel frame, a refractory fiber composite layer set below the steel frame, multiple rows of stainless steel mesh anchors evenly distributed at the bottom of the steel frame, and tie rods inserted at the bottom of each row of stainless steel mesh anchors. The two ends of the tie rods are welded to the two side steel plates, and the lower ends of the multiple rows of stainless steel mesh anchors are all inserted into the refractory fiber composite layer.

[0006] Specifically, multiple steel frames are assembled into any size. Adjacent steel frames are connected using long bolts.

[0007] In one embodiment, the stainless steel mesh anchor is a V-shaped stainless steel anchor hook with no opening facing upwards, and both sides of the top of the V-shaped stainless steel anchor hook are provided with horizontal connecting parts that are welded to the steel frame.

[0008] In one embodiment, the tie rod is a horizontally arranged stainless steel round bar, which is disposed in the refractory fiber composite layer, and each horizontally arranged stainless steel round bar is located at the inner bottom of the V-shaped stainless steel anchor hook in the same row.

[0009] In one embodiment, the diameter of the horizontally arranged stainless steel round bars is Φ3mm-Φ12mm; the material of the horizontally arranged stainless steel round bars is 304 or 310S; and the spacing between two adjacent horizontally arranged stainless steel round bars is 50mm-500mm.

[0010] In one embodiment, the width of the steel frame is smaller than the width of the refractory fiber composite layer, and the steel frame is located directly above the refractory fiber composite layer. The distance from the edge of the steel frame to the edge of the refractory fiber composite layer is 10mm-200mm.

[0011] Specifically, the upper part is a steel frame, and the lower part is refractory fiber + stainless steel mesh anchors. V-shaped stainless steel anchor hooks are welded to the steel frame. For subsequent splicing of multiple sections, the refractory fiber is 2L wider than the steel frame, where L = 10-200mm. For particularly large areas, multiple sections are spliced ​​together and bolted together; for smaller areas, such as furnace doors, they are made as a single piece. A single-piece structure is as follows... Figures 1 to 3 As shown.

[0012] In one embodiment, the refractory fiber composite layer includes a plurality of refractory fiber monolayers arranged in a folded manner, each refractory fiber monolayer being threaded through the horizontally arranged stainless steel round bar along the length direction of the horizontally arranged stainless steel round bar.

[0013] Specifically, the refractory fiber composite layer is constructed by folding multiple layers of fiber and threading them onto horizontally arranged round bars, with each fold consisting of 2-30 layers. It is formed using hydraulic jacks or screw jacks through extrusion.

[0014] In one embodiment, the refractory fiber monolayer is a seamless structure with a thickness of 20 mm.

[0015] Specifically, the refractory fiber single layer in this solution has a seamless structure, which prevents hot air from easily penetrating, significantly improving its service life. Its effectiveness is particularly pronounced in furnace door and furnace roof applications. The refractory fiber composite layer is made of high-purity, high-alumina, low-zirconium, zirconium-containing, and chromium-containing materials.

[0016] In one embodiment, the steel frame is square, with a length of 0.5m-10m and a width of 0.3m-6m.

[0017] In one embodiment, the V-shaped stainless steel anchor hook has a diameter of Φ3-Φ12mm.

[0018] In one embodiment, the V-shaped stainless steel anchor hook is made of 304 or 310S, and the total height of the V-shaped stainless steel anchor hook is 20mm-250mm.

[0019] Installation process of a fire-resistant fiber composite fixing structure: The first step is to design and manufacture the steel frame according to the size requirements; The second step is to weld the side steel plates; The third step is to weld horizontally arranged stainless steel round bars; The fourth step is to fold the refractory fiber composite layer and thread it onto the horizontally arranged stainless steel round bars, inserting it 300mm-700mm thick each time, and then using a jack to compress it to a thickness of 150-350mm, with a compression ratio of about 2:1. Fifth, install the V-shaped stainless steel anchor hooks and weld them to the bottom steel frame. Remove the jacks, and then repeat steps four and five until the work is completed.

[0020] The beneficial effects of this utility model are as follows: 1. A method of splicing multiple steel frames into any size is adopted. Through the compression of folded fiber modules, multiple rows of stainless steel mesh anchors, and tie rods inserted at the bottom of each row of stainless steel mesh anchors, the shrinkage at high temperatures is minimal, the gaps between fiber modules are small, preventing the fiber modules from collapsing, and ensuring strong stability.

[0021] 2. The upper part is a steel frame, and the lower part is refractory fiber + stainless steel mesh anchors. V-shaped stainless steel anchor hooks are welded to the steel frame. In order to splice multiple pieces later, the refractory fiber is wider than the steel frame. For particularly large areas, multiple pieces are spliced ​​and connected with bolts. For small areas, such as furnace doors, they are made into a whole piece. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A side view; Figure 3 This is a schematic diagram of the structure of a V-shaped stainless steel anchor hook; Figure 4 This is a schematic diagram of the steel frame fabrication process; Figure 5 This is a schematic diagram of the installation process of horizontally arranged stainless steel round bars; Figure 6 This is a schematic diagram of the installation process of the refractory fiber composite layer; Figure 7 This is a schematic diagram of the installation process of the V-shaped stainless steel anchor hook; Figure 8 This is a schematic diagram of the extrusion of the refractory fiber composite layer; Figure 9 This is a schematic diagram of the repeated installation of the fire-resistant fiber composite layer, the V-shaped stainless steel anchor hook, and the extrusion process. Figure 10 This is a schematic diagram of a structure in which two refractory fiber fixing units are connected by screws; Reference numerals: 1. Steel frame; 2. V-shaped stainless steel anchor hook; 3. Horizontally arranged stainless steel round bars; 4. Fire-resistant fiber composite layer; 5. Side steel plate. Detailed Implementation

[0024] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] 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 invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Example 1 like Figures 1 to 10As shown, this embodiment provides a refractory fiber composite fixing structure, including multiple spliced ​​refractory fiber fixing units. Each refractory fiber fixing unit includes an upper steel frame 1, two side steel plates 5 welded to both sides of the steel frame 1, a refractory fiber composite layer 4 set below the steel frame 1, multiple rows of stainless steel mesh anchors evenly distributed at the bottom of the steel frame 1, and tie rods inserted at the bottom of each row of stainless steel mesh anchors. The two ends of the tie rods are welded to the two side steel plates 5, and the lower ends of the multiple rows of stainless steel mesh anchors are all inserted into the refractory fiber composite layer 4.

[0029] The steel frame 1 is square, with a length of 0.5m-10m and a width of 0.3m-6m.

[0030] Specifically, multiple steel frame sections 1 are spliced ​​together to form any size. Adjacent steel frame sections 1 are connected using long bolts.

[0031] Example 2 like Figures 1 to 10 As shown, this embodiment provides a refractory fiber composite fixing structure, including multiple spliced ​​refractory fiber fixing units. Each refractory fiber fixing unit includes an upper steel frame 1, two side steel plates 5 welded to both sides of the steel frame 1, a refractory fiber composite layer 4 set below the steel frame 1, multiple rows of stainless steel mesh anchors evenly distributed at the bottom of the steel frame 1, and tie rods inserted at the bottom of each row of stainless steel mesh anchors. The two ends of the tie rods are welded to the two side steel plates 5, and the lower ends of the multiple rows of stainless steel mesh anchors are all inserted into the refractory fiber composite layer 4.

[0032] The stainless steel mesh anchor is a closed-opening V-shaped stainless steel anchor hook 2. Both sides of the top of the V-shaped stainless steel anchor hook 2 are equipped with horizontal connecting parts welded to the steel frame 1. The diameter of the V-shaped stainless steel anchor hook 2 is Φ3-Φ12mm. The material of the V-shaped stainless steel anchor hook 2 is 304 or 310S, and the total height of the V-shaped stainless steel anchor hook 2 is 20mm-250mm.

[0033] Example 3 This embodiment is a further optimization based on embodiment 2, as detailed below: The tie rod is a horizontally arranged stainless steel round bar 3, which is set in the refractory fiber composite layer 4. Each horizontally arranged stainless steel round bar 3 is located at the inner bottom of the V-shaped stainless steel anchor hook 2 in the same row.

[0034] The diameter of the horizontally arranged stainless steel round bars 3 is Φ3mm-Φ12mm; the material of the horizontally arranged stainless steel round bars 3 is 304 or 310S; the spacing between two adjacent horizontally arranged stainless steel round bars 3 is 50mm-500mm.

[0035] In one embodiment, the width of the steel frame 1 is smaller than the width of the refractory fiber composite layer 4, and the steel frame 1 is located directly above the refractory fiber composite layer 4. The distance from the edge of the steel frame 1 to the edge of the refractory fiber composite layer 4 is 10mm-200mm.

[0036] Specifically, the upper part is a steel frame 1, and the lower part is a refractory fiber + stainless steel mesh anchor. V-shaped stainless steel anchor hooks 2 are welded to the steel frame 1. For subsequent multi-piece splicing, the refractory fiber is 2L wider than the steel frame 1, where L = 10-200mm. For particularly large areas, multiple pieces are spliced ​​together and connected with bolts; for smaller areas, such as furnace doors, they are made as a single piece. A single-piece structure is as follows... Figures 1 to 3 As shown.

[0037] Example 4 This embodiment is a further optimization based on embodiment 3, as detailed below: The refractory fiber composite layer 4 includes multiple refractory fiber single layers arranged in a folded manner, with each refractory fiber single layer passing through the horizontally arranged stainless steel round bar 3 along the length direction of the horizontally arranged stainless steel round bar 3.

[0038] Specifically, the refractory fiber composite layer 4 is constructed by folding multiple layers of fiber and threading them onto horizontally arranged round bars, with each fold consisting of 2-30 layers. It is formed using hydraulic jacks or screw jacks through extrusion.

[0039] Example 5 This embodiment is a further optimization based on embodiment 3, as detailed below: The refractory fiber monolayer is a seamless structure with a thickness of 20mm.

[0040] Specifically, the refractory fiber single layer in this solution has a seamless structure, which prevents hot air from easily penetrating and significantly improves its service life. Its effectiveness is particularly pronounced in furnace door and furnace roof applications. The refractory fiber composite layer 4 is made of high-purity, high-alumina, low-zirconium, zirconium-containing, and chromium-containing materials.

[0041] Example 6 This embodiment provides an installation method for a refractory fiber composite fixing structure, including the following steps: The first step is to design and manufacture the steel frame 1 according to the size requirements; The second step is to weld side steel plate 5; The third step is to weld the horizontally arranged stainless steel round bars 3; The fourth step is to fold the refractory fiber composite layer 4 and thread it onto the horizontally arranged stainless steel round bars 3, with each insertion being 300mm-700mm thick. The bars are then compressed to a thickness of 150-350mm using a jack, with a compression ratio of approximately 2:1. Fifth step: Install the V-shaped stainless steel anchor hook 2 and weld it to the bottom steel frame 1. Remove the jack and then repeat steps four and five until the work is completed.

Claims

1. A refractory fiber composite fixing structure, characterized in that, The assembly includes multiple refractory fiber fixing units spliced ​​together. Each refractory fiber fixing unit includes an upper steel frame (1), two side steel plates (5) welded to both sides of the steel frame (1), a refractory fiber composite layer (4) set below the steel frame (1), multiple rows of stainless steel mesh anchors evenly distributed at the bottom of the steel frame (1), and tie rods inserted at the bottom of each row of stainless steel mesh anchors. The two ends of the tie rods are welded to the two side steel plates (5), and the lower ends of the multiple rows of stainless steel mesh anchors are inserted into the refractory fiber composite layer (4).

2. A refractory fiber composite fixation structure according to claim 1, characterized in that The stainless steel mesh anchor is a V-shaped stainless steel anchor hook (2) with no opening facing upwards. Both sides of the top of the V-shaped stainless steel anchor hook (2) are provided with horizontal connecting parts that are welded to the steel frame (1).

3. The refractory fiber composite fixing structure according to claim 2, characterized in that, The tie rod is a horizontally arranged stainless steel round bar (3), which is set on the refractory fiber composite layer (4). Each of the horizontally arranged stainless steel round bars (3) is located at the inner bottom of the V-shaped stainless steel anchor hook (2) in the same row.

4. A refractory fiber composite fixation structure according to claim 3, wherein The diameter of the horizontally arranged stainless steel round bars (3) is Φ3mm-Φ12mm; the material of the horizontally arranged stainless steel round bars (3) is 304 or 310S; the distance between two adjacent horizontally arranged stainless steel round bars (3) is 50mm-500mm.

5. A refractory fiber composite fixation structure according to claim 3, wherein The width of the steel frame (1) is smaller than the width of the refractory fiber composite layer (4), and the steel frame (1) is located directly above the refractory fiber composite layer (4). The distance from the edge of the steel frame (1) to the edge of the refractory fiber composite layer (4) is 10mm-200mm.

6. A refractory fiber composite fixation structure according to claim 3, wherein The refractory fiber composite layer (4) includes multiple refractory fiber single layers arranged in a folded manner, and each refractory fiber single layer is inserted through the horizontally arranged stainless steel round bar (3) along the length direction of the horizontally arranged stainless steel round bar (3).

7. The refractory fiber composite fixing structure according to claim 6, characterized in that, The refractory fiber monolayer is a seamless structure, and the thickness of the refractory fiber monolayer is 20mm.

8. The refractory fiber composite fixing structure according to claim 1, characterized in that, The steel frame (1) is square, the length of the steel frame (1) is 0.5m-10m, and the width of the steel frame (1) is 0.3m-6m.

9. The refractory fiber composite fixing structure according to claim 2, characterized in that, The diameter of the V-shaped stainless steel anchor hook (2) is Φ3-Φ12mm.

10. The refractory fiber composite fixing structure according to claim 9, characterized in that, The V-shaped stainless steel anchor hook (2) is made of 304 or 310S material, and the total height of the V-shaped stainless steel anchor hook (2) is 20mm-250mm.

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