Assembly structure of full-fiber furnace wall segment

Abstract

The utility model discloses a kind of assembly structure of all-fiber furnace wall piece, large furnace wall is decomposed into multiple wall modules, each wall module is by structural support layer, primary heat insulation layer and lining layer, and there is filling space between primary heat insulation layer, the filling space is located at the inboard of fiber furnace, allowing technical personnel to carry out welding from hearth, convenient and fast.Add filling unit containing secondary heat insulation layer to filling space, the inner lining plate of the fastening plate on the surface of secondary heat insulation layer and the surface of primary heat insulation layer are fixed by anchor, complete the assembly of entire fiber furnace.The fiber furnace provided by the utility model can complete most of the anchoring work in factory, only a small part of assembly work needs to be paid on site, has the advantages of convenient installation, assembly fast on the premise of not affecting sealing capacity, heat preservation capacity.

Description

Technical Field

[0001] This utility model relates to a full fiber furnace, and in particular to an assembly structure for the segmented full fiber furnace wall. Background Technology

[0002] All-fiber furnaces are common industrial equipment used in industrial furnaces with strong hot air circulation. The insulation layer of an all-fiber furnace is made of lightweight, heat-resistant materials such as rock wool and aluminum silicate fiber. To maintain a clean hot air environment inside the furnace, heat-resistant stainless steel lining plates are needed to cover the fiber furnace walls. These stainless steel lining plates expand when heated during operation; therefore, the installation of all-fiber furnaces requires consideration of the segmented assembly and anchoring of the lining plates. For small furnaces, the fiber lining and stainless steel lining plate anchoring are relatively easy to handle and can be completed at the manufacturing plant before overall transportation and delivery. However, for large all-fiber strong hot air circulation furnaces, due to their large size, they cannot be transported by hand and must be shipped to the customer's site in parts for assembly. Fiber laying and stainless steel lining plate anchoring must be completed on-site, resulting in a large workload, long construction period, and significantly increased construction costs. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an assembly structure for a segmented all-fiber furnace wall, comprising multiple wall units arranged vertically, each wall unit including, from the outside to the inside, a structural support layer, a primary insulation layer and a lining layer.

[0004] Adjacent wall units are connected by a structural support layer and form a filling space between the primary insulation layers;

[0005] A filling unit, disposed within the filling space, includes a secondary insulation layer and a fastening layer. The fastening layer is pressed to the inner side of the secondary insulation layer and the lining layer by anchors that penetrate the primary insulation layer.

[0006] Furthermore, each structural support layer includes an outer wall panel disposed outside the primary insulation layer, with adjacent outer wall panels connected by a welded structure.

[0007] Furthermore, the welded structure includes a steel profile provided on the opposite end face of one of the outer wall panels and an angle steel member provided on the opposite end face of the other outer wall panel, wherein the steel profile and the angle steel member are welded and fixed.

[0008] Furthermore, the filling space has a gradient structure, with the outer height of the filling space being less than the inner height.

[0009] Furthermore, the lining layer includes an inner lining plate disposed along the inner side of the primary insulation layer, a first pressure plate being pressed onto the surface of the inner lining plate, and the anchor passing through the first pressure plate and having a first cotter pin pressed onto the first pressure plate on the anchor.

[0010] Furthermore, the anchor has an anchoring hole on the surface of the primary insulation layer, a disc plate is installed in the anchoring hole, the anchor passes through the short end of the disc plate, and the long end of the disc plate is pressed between the primary insulation layer and the inner lining plate.

[0011] Furthermore, the fastening layer includes a snap-on plate pressed onto the surface of the secondary insulation layer, the inner side of the secondary insulation layer extends into a filling space, and the edge of the inner lining plate has a folded edge connected to the snap-on plate.

[0012] Furthermore, a second pressure plate is pressed onto the surface of the buckle plate, and one end of the anchor passes through the second pressure plate and is provided with a second cotter pin on the inner lining plate to connect to the second pressure plate.

[0013] This utility model discloses a segmented assembly structure for a full fiber furnace wall, decomposing a large furnace wall into multiple wall modules. Each wall module consists of a structural support layer, a primary insulation layer, and a lining layer. Filling spaces are left between the primary insulation layers, located inside the fiber furnace, allowing technicians to weld from within the furnace chamber, which is convenient and quick. Filling units containing secondary insulation layers are then added into the filling spaces. The snap-on plates on the surface of the secondary insulation layer and the inner lining plates on the surface of the primary insulation layer are fixed with anchors, completing the assembly of the entire fiber furnace. The fiber furnace provided by this utility model can complete most of the anchoring work in the factory, requiring only a small portion of assembly work on-site. It offers the advantages of convenient installation and quick assembly without affecting sealing and insulation capabilities. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the assembly structure of the all-fiber furnace wall panels of this utility model;

[0015] Figure 2 This is a schematic diagram showing the connection between the snap-on panels and the inner lining panels via anchors.

[0016] Reference numerals: 1. Structural support layer; 11. Exterior wall panel; 12. Steel profile; 13. Angle steel profile;

[0017] Primary insulation layer 2;

[0018] Lining layer 3, inner lining plate 31, anchoring hole 32, disc plate 33, folded edge 34;

[0019] Anchor 4, first pressure plate 41, first cotter pin 42, second pressure plate 43, second cotter pin 44;

[0020] Secondary insulation layer 5;

[0021] Fastening layer 6, snap-on plate 61;

[0022] Fill space 7. Detailed Implementation

[0023] like Figure 1 and Figure 2 The assembled structure of the segmented all-fiber furnace wall shown includes multiple wall units arranged vertically. Each wall unit, from the outside to the inside, comprises a structural support layer 1, a primary insulation layer 2, and a lining layer 3. The structural support layer 1, serving as the skeleton of the entire furnace wall, is typically welded from steel plates. It not only bears the mechanical load of the furnace body but also provides a foundation for fixing the entire fiber furnace lining. The primary insulation layer 2, as the main insulation layer, often uses high-purity aluminosilicate fiber or zirconium-containing heat-resistant fiber materials, capable of withstanding high-temperature working environments. The lining layer 3, as the working surface directly in contact with the high-temperature environment inside the furnace, needs to possess excellent high-temperature resistance, erosion resistance, and thermal radiation resistance. In the segmented assembled structure of the all-fiber furnace wall, the lining layer 3 is typically composed of a special material inner lining board 31, with a high-temperature reinforcing coating sprayed onto its surface. During use, the structural support layer 1, primary insulation layer 2, and lining layer 3 need to be assembled into a stable whole, and the assembly process of the all-fiber furnace wall, especially the assembly process of large hot air fiber furnaces, is extremely difficult.

[0024] The hot air fiber furnace provided by this utility model is decomposed into multiple separate wall units, each of which can be prefabricated in the factory and then transported to the assembly site. The feature of this device is that the primary insulation layer 2 does not fill the entire wall unit, and the adjacent structural support layer 1 has a certain filling space 7. After the wall unit is assembled, the structural support layer 1 can be connected from the inside of the fiber furnace, and finally, heat-resistant fibers are filled into the filling space 7 to complete the finished product assembly.

[0025] Specifically, each wall structure includes interconnected exterior wall panels 11, with their proximal ends connected by a welded structure. One exterior wall panel 11 has a steel profile 12 on its end face, the profile 12 having an I-shaped cross-section, covering the surface of the exterior wall panel 11 and providing sufficient rigid support. The other exterior wall panel 11 has an angle steel profile 13 on its end face, positioned on the inner side to define the installation position of that exterior wall panel 11. During assembly, the angle steel profile 13 and the steel profile 12 work together to position the exterior wall panel 11. The welding position is located on the inner side of the inner exterior wall panel 11, allowing construction workers to perform internal welding work uniformly through the filling space 7 after assembling the entire wall unit, significantly improving construction efficiency. After welding, the steel profile 12 and the angle steel profile 13 together form a rigid node, effectively transmitting forces and moments in all directions.

[0026] The lining layer 3 includes an inner lining plate 31 disposed along the inner side of the primary insulation layer 2. Anchors 4 are disposed on the surface of the lining layer 3 to press the inner lining plate 31 onto the surface of the primary insulation layer 2, assembling the outer wall panel 11, the inner lining plate 31, and the insulation fiber into a complete furnace wall unit. As shown in the figure, a first pressure plate 41 is pressed onto the surface of the inner lining plate 31, and the anchors 4 pass through the first pressure plate 41. A first cotter pin 42 is disposed on the outer side of the anchors 4. The first cotter pin 42 is pressed onto the surface of the first pressure plate 41, providing fastening pressure to the inner lining plate 31. The first pressure plate 41 is directly pressed onto the surface of the inner lining plate 31, and the anchors 4 are fixed by the first cotter pin 42 after passing through the pressure plate.

[0027] Furthermore, the surface of the primary insulation layer 2 is provided with anchoring holes 32, and a disc-shaped plate 33 is installed in the anchoring holes 32. The short end of the disc-shaped plate 33 passes through the anchor 4, and the long end is pressed between the primary insulation layer 2 and the inner lining plate 31. This disc-shaped plate 33 structure not only expands the pressure distribution area and reduces the local compression deformation of the fiber material, but also adjusts the stress state through slight deflection when the temperature changes, effectively preventing cracking at the anchoring point.

[0028] The filling space 7 contains a filling unit, which includes a secondary insulation layer 5 and a fastening layer 6. The fastening layer 6 is pressed into the inner side of the secondary insulation layer 5 and the lining layer 3 by anchors 4. The secondary insulation layer 5 also uses fiber insulation material and is used to fill the missing part of the primary insulation layer 2 to ensure the insulation effect of the entire fiber furnace. The filling unit can also be prefabricated in the factory, fixing the secondary insulation layer 5 to the fastening layer 6, which facilitates mass production and transportation.

[0029] Furthermore, the filling space 7 adopts a gradient structure, with the inner dimension of the filling space 7 being larger than the outer dimension, forming a step from the inside out. This design is primarily for ease of assembly, facilitating the application of force during the filling process and ensuring that the heat-resistant fiber can fill the entire filling space 7. Simultaneously, the stepped structure formed by the filling space 7 facilitates the transfer of hot gas from the furnace to the outer wall.

[0030] The fastening layer 6 includes a snap-on plate 61 pressed onto the surface of the secondary insulation layer 5. A filling space 7 extends from the inner side of the secondary insulation layer 5. An edge 34 extends along the edge of the secondary insulation layer 5, connecting the snap-on plate 61 to the inner lining plate 31. A second pressure plate 43 is pressed onto the surface of the snap-on plate 61. One end of the anchor 4 passes through the second pressure plate 43 and a second cotter pin 44 connecting the second pressure plate 43 is provided on the inner lining plate 31. The snap-on plate 61 and the edge 34 of the inner lining plate 31 interlock. During assembly, appropriate pressure is applied through the anchor 4 to generate pre-pressure, ensuring that the heat-resistant fibers within the primary insulation layer 2 and the secondary insulation layer 5 are under pressure. The two positioning structures set on the anchor 4 can ensure the heat insulation and support capacity of the filling unit and the furnace wall unit. At the factory, the furnace wall unit is first fixed in advance by the cooperation of the first pressure plate 41 and the first cotter pin 42 for easy transportation; during on-site assembly, the filling unit is then installed by the second pressure plate 43 and the second cotter pin 44 for convenience and speed.

[0031] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A construction of segments of a fully fibrous furnace wall, characterized in that: Multiple wall units arranged vertically, each wall unit including, from the outside to the inside, a structural support layer (1), a primary insulation layer (2) and a lining layer (3); Adjacent wall units are connected through a structural support layer (1) and form a filling space (7) between the primary insulation layers (2); The filling unit is disposed in the filling space (7) and includes a secondary insulation layer (5) and a fastening layer (6). The fastening layer (6) is pressed to the inner side of the secondary insulation layer (5) and the lining layer (3) by an anchor (4) that penetrates the primary insulation layer (2).

2. The all-fiber furnace wall panel assembly of claim 1, wherein: Each structural support layer (1) includes an outer wall panel (11) disposed outside the primary insulation layer (2), and two adjacent outer wall panels (11) are connected by a welded structure.

3. The all-fiber furnace wall panel assembly of claim 2, wherein: The welded structure includes a steel profile (12) provided on the opposite end face of one of the outer wall panels (11) and an angle steel profile (13) provided on the opposite end face of the other outer wall panel (11), wherein the steel profile (12) and the angle steel profile (13) are welded and fixed.

4. The all-fiber furnace wall panel assembly of claim 1, wherein: The filling space (7) has a gradient structure, and the outer height of the filling space (7) is smaller than the inner height.

5. The all-fiber furnace wall panel assembly of claim 1, wherein: The lining layer (3) includes an inner lining plate (31) disposed along the inner side of the primary insulation layer (2), a first pressure plate (41) is pressed onto the surface of the inner lining plate (31), and the anchor (4) passes through the first pressure plate (41) and is provided with a first cotter pin (42) pressed onto the first pressure plate (41).

6. The full-fiber wall panel assembly of claim 5, wherein: The anchor (4) has an anchor hole (32) on the surface of the primary insulation layer (2). A disc plate (33) is provided in the anchor hole (32). The anchor (4) passes through the short end of the disc plate (33). The long end of the disc plate (33) is pressed between the primary insulation layer (2) and the inner lining plate (31).

7. The all-fiber furnace wall panel assembly of claim 5, wherein: The fastening layer (6) includes a snap-on plate (61) pressed onto the surface of the secondary insulation layer (5), the inner side of the secondary insulation layer (5) extends into a filling space (7), and the edge of the inner lining plate (31) has a folded edge (34) connected to the snap-on plate (61).

8. The full-fiber wall panel assembly of claim 7, wherein: The surface of the buckle plate (61) is pressed with a second pressure plate (43), and one end of the anchor (4) passes through the second pressure plate (43) and a second cotter pin (44) is provided on the inner lining plate (31) to connect the second pressure plate (43).

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