Pallet and roaster

Abstract

This utility model discloses a pallet and a roasting furnace. The roasting furnace of this utility model includes a furnace shell and a pallet. The pallet includes a plate body disposed on the furnace shell. The plate body is annular, with its thickness direction being vertical. The plate body has an expansion groove penetrating it, and the opening of the expansion groove is formed on the inner annular surface of the plate body, such that at least a portion of the inner side of the plate body is spaced apart. Therefore, the roasting furnace according to this utility model has high structural stability.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical technology, specifically to a pallet and a roasting furnace. Background Technology

[0002] To facilitate brick support, the pallets of the calcining furnace need to extend deep into the furnace shell. Therefore, the pallets commonly experience excessively high temperatures during long-term operation. This high temperature causes expansion, and the inner ring area, acting as a stress point, experiences self-compression, which, over time, severely damages the structural strength of the pallet. Furthermore, high temperatures also reduce its yield strength and other properties, affecting its load-bearing capacity. This poses a serious threat to the stable operation of the calcining furnace. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in the related art. To this end, embodiments of this invention provide a pallet and a roasting oven.

[0004] The roasting furnace of this utility model embodiment includes:

[0005] Furnace shell;

[0006] The pallet includes a plate body disposed on the furnace shell. The plate body is annular, and the thickness direction of the plate body is vertical. The plate body has an expansion groove that penetrates it, and the opening of the expansion groove is formed on the inner annular surface of the plate body so that at least a portion of the inner side of the plate body is spaced apart.

[0007] Therefore, the roasting furnace according to the embodiments of this utility model has high structural stability.

[0008] In some embodiments, the plate body includes an inner ring plate and an outer ring plate, the inner ring plate being located inside the outer ring plate, the outer ring plate being disposed on the furnace shell, and the expansion groove being formed on the inner ring plate.

[0009] In some embodiments, there are multiple expansion grooves, which are spaced apart along the circumference of the plate on the inner ring plate to divide the inner ring plate into multiple segments in the circumference.

[0010] In some embodiments, the tray includes a cover plate disposed on the tray body, the cover plate being used to cover the expansion groove, and the width of the cover plate being greater than the width of the expansion groove.

[0011] In some embodiments, the cover plate is connected to the outer ring plate, and the cover plate is provided on both the upper and lower sides of the plate.

[0012] In some embodiments, the inner edge of the outer ring plate is located inside the furnace shell, and the outer edge of the outer ring plate is located outside the furnace shell.

[0013] In some embodiments, a first reinforcing plate is provided inside the furnace shell, and the first reinforcing plate is connected to the lower surface of the plate and the inner wall surface of the furnace shell;

[0014] The furnace shell is provided with a second reinforcing plate, which is connected to the upper surface of the plate and the outer wall of the furnace shell.

[0015] In some embodiments, the expansion groove extends radially along the plate body;

[0016] The width of at least a portion of the expansion groove increases radially along the direction adjacent to the inner edge of the plate.

[0017] In some embodiments, the expansion groove is a trapezoidal groove.

[0018] This utility model also proposes a pallet suitable for the above-mentioned roasting furnace, including...

[0019] The plate body includes an inner ring plate and an outer ring plate. The inner ring plate is located inside the outer ring plate, and the outer ring plate is disposed on the furnace shell. The inner ring plate has a plurality of expansion grooves that penetrate it. The plurality of expansion grooves are spaced apart on the inner ring plate along the circumference of the plate body so as to divide the inner ring plate into multiple segments in the circumference.

[0020] A cover plate is disposed on at least one of the upper and lower sides of the outer ring plate, the cover plate being used to cover the expansion groove. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a tray according to an embodiment of the present utility model.

[0022] Figure 2 This is a partial top view of the roasting furnace according to an embodiment of the present utility model.

[0023] Figure 3 This is a partial side view of the roasting furnace according to an embodiment of the present utility model.

[0024] Reference numerals: 1. Furnace shell, 2. Support plate, 3. Plate body, 4. Inner ring plate, 5. Outer ring plate, 6. Expansion groove, 7. Cover plate, 8. First reinforcing plate, 9. Second reinforcing plate. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] The roasting furnace of this utility model is described below with reference to the accompanying drawings. Figures 1 to 3 As shown, the roasting furnace according to an embodiment of the present invention includes a furnace shell 1 and a support plate 2.

[0027] The support plate 2 includes a plate body 3, which is disposed on the furnace shell 1. The plate body 3 is annular, and its thickness direction is vertical. Specifically, at least a portion of the plate body 3 is located inside the furnace shell 1, and the plate body 3 is used to support the refractory material.

[0028] The plate 3 has an expansion groove 6 extending through it in the vertical direction. The opening of the expansion groove 6 is formed on the inner annular surface of the plate 3, so that at least part of the inner side of the plate 3 is spaced apart. Thus, after the plate 3 expands due to heat, the expansion groove 6 provides clearance space for the plate 3.

[0029] In related technologies, pallets expand under high-temperature environments. Due to their unique annular structure, the stress points from expansion deformation concentrate in the inner ring region, causing mutual compressive stress within the pallet itself. Long-term accumulation of this stress severely damages the structural strength of the pallet. The roasting furnace according to this embodiment of the invention provides expansion grooves 6 with openings located on the inner ring surface of the plate 3. Therefore, in high-temperature operating environments, when the plate 3 expands due to temperature increases, the expansion grooves 6 can fully utilize their structural characteristics to absorb the expansion deformation of the plate 3, thereby effectively maintaining the overall structural stability of the pallet 2 and facilitating the support of refractory materials.

[0030] Therefore, the roasting furnace according to the embodiments of this utility model has high structural stability.

[0031] like Figures 1 to 3 As shown, in some embodiments, the plate 3 includes an inner ring plate 4 and an outer ring plate 5. The inner ring plate 4 is located inside the outer ring plate 5, and the outer ring plate 5 is disposed on the furnace shell 1. The expansion groove 6 is formed on the inner ring plate 4. Specifically, the inner ring plate 4 and the outer ring plate 5 are integrally formed, and the inner ring plate 4 is the part of the plate 3 in which the expansion groove 6 is formed.

[0032] In some embodiments, there are multiple expansion grooves 6, which are spaced apart along the circumference of the plate 3 on the inner ring plate 4 to divide the inner ring plate 4 into multiple segments in the circumference. Specifically, the multiple expansion grooves 6 divide the inner ring plate 4 into multiple sub-plates in the circumference, thereby providing clearance space for the multiple sub-plates after they expand due to heat.

[0033] In some embodiments, the pallet 2 includes a cover plate 7, which is disposed on the plate body 3 and is used to cover the expansion groove 6. Specifically, the cover plate 7 is connected to the outer ring plate 5, and cover plates 7 are provided on both the upper and lower sides of the plate body 3. The width of the cover plate 7 is greater than the width of the expansion groove 6. A cover plate 7 is added on the upper and lower sides of the expansion groove 6 respectively. The cover plate 7 is stably connected to the outer ring plate 5 by spot welding. The cover plate 7 not only plays a good role in preventing dust and mud, avoiding the impact of impurity accumulation on the normal operation of the pallet 2, but also ensures that there is no restriction on the expansion of the cover plate 7, fully guaranteeing the freedom of expansion of the cover plate 7.

[0034] In some embodiments, the thickness of the cover plate 7 is less than or equal to 4 mm. For example, the thickness of the cover plate 7 is 2 mm.

[0035] In some embodiments, the inner edge of the outer ring plate 5 is located inside the furnace shell 1, and the outer edge of the outer ring plate 5 is located outside the furnace shell 1. That is, a portion of the outer ring plate 5 is located outside the furnace shell 1 so that the plate 3 is securely connected to the furnace shell 1.

[0036] In some embodiments, a first reinforcing plate 8 is provided inside the furnace shell 1, and the first reinforcing plate 8 is connected to the lower surface of the plate body 3 and the inner wall surface of the furnace shell 1. Specifically, the first reinforcing plate 8 is connected to the lower surface of the inner ring plate 4 and a portion of the lower surface of the outer ring plate 5 and the inner wall surface of the furnace shell 1, so that the first reinforcing plate 8 can be used to support the plate body 3.

[0037] A second reinforcing plate 9 is provided on the outside of the furnace shell 1. The second reinforcing plate 9 is connected to the upper surface of the plate body 3 and the outer wall surface of the furnace shell 1. Specifically, the second reinforcing plate 9 is connected to a portion of the upper surface of the outer ring plate 5 and the outer wall surface of the furnace shell 1 so that the second reinforcing plate 9 can be used to support the plate body 3.

[0038] In some embodiments, the expansion groove 6 extends radially along the plate 3. At least a portion of the width of the expansion groove 6 increases radially along the inner edge of the plate 3. This improves the structural strength of the plate 3. Specifically, the expansion groove 6 is a trapezoidal groove.

[0039] The present invention also proposes a pallet 2 suitable for a roasting furnace according to an embodiment of the present invention. The pallet 2 of the roasting furnace according to an embodiment of the present invention includes a plate body 3 and a cover plate 7.

[0040] The plate body 3 includes an inner ring plate 4 and an outer ring plate 5. The inner ring plate 4 is located inside the outer ring plate 5, and the outer ring plate 5 is disposed on the furnace shell 1. The inner ring plate 4 has a plurality of expansion grooves 6 extending through it. The plurality of expansion grooves 6 are arranged at intervals along the circumference of the plate body 3 on the inner ring plate 4 so as to divide the inner ring plate 4 into multiple segments in the circumference. A cover plate 7 is disposed on at least one of the upper and lower sides of the outer ring plate 5, and the cover plate 7 is used to cover the expansion grooves 6.

[0041] According to the embodiments of this utility model, the outer surface 2 of the tray does not require an insulation layer. This allows the tray 2 to directly exchange heat with the surrounding environment via convection. By enhancing the convection heat exchange process, the efficiency of heat dissipation from the tray 2 to the environment can be effectively improved, thereby significantly reducing the temperature of the tray 2, enabling it to operate stably within a more suitable temperature range, extending the service life of the tray 2, and improving its operational reliability.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] 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 roasting furnace, characterized in that, include: Furnace shell; The pallet includes a plate body disposed on the furnace shell. The plate body is annular, and the thickness direction of the plate body is vertical. The plate body has an expansion groove that penetrates it, and the opening of the expansion groove is formed on the inner annular surface of the plate body so that at least a portion of the inner side of the plate body is spaced apart.

2. The roasting furnace according to claim 1, characterized in that, The plate body includes an inner ring plate and an outer ring plate. The inner ring plate is located inside the outer ring plate, and the outer ring plate is disposed on the furnace shell. The expansion groove is formed on the inner ring plate.

3. The roasting furnace according to claim 2, characterized in that, The expansion grooves are multiple, and the multiple expansion grooves are arranged at intervals along the circumference of the plate on the inner ring plate so as to divide the inner ring plate into multiple segments in the circumference.

4. The roasting furnace according to claim 2, characterized in that, The pallet includes a cover plate disposed on the plate body. The cover plate is used to cover the expansion groove, and the width of the cover plate is greater than the width of the expansion groove.

5. The roasting furnace according to claim 4, characterized in that, The cover plate is connected to the outer ring plate, and the cover plate is provided on both the upper and lower sides of the plate.

6. The roasting furnace according to claim 2, characterized in that, The inner edge of the outer ring plate is located inside the furnace shell, and the outer edge of the outer ring plate is located outside the furnace shell.

7. The roasting furnace according to claim 1, characterized in that, The furnace shell is provided with a first reinforcing plate, which is connected to the lower surface of the plate and the inner wall of the furnace shell. The furnace shell is provided with a second reinforcing plate, which is connected to the upper surface of the plate and the outer wall of the furnace shell.

8. The roasting furnace according to any one of claims 1-7, characterized in that, The expansion groove extends radially along the plate body; The width of at least a portion of the expansion groove increases radially along the direction adjacent to the inner edge of the plate.

9. The roasting furnace according to claim 8, characterized in that, The expansion groove is a trapezoidal groove.

10. A pallet suitable for use in a roasting furnace according to any one of claims 1-9, characterized in that, include The plate body includes an inner ring plate and an outer ring plate. The inner ring plate is located inside the outer ring plate, and the outer ring plate is disposed on the furnace shell. The inner ring plate has a plurality of expansion grooves that penetrate it. The plurality of expansion grooves are spaced apart on the inner ring plate along the circumference of the plate body so as to divide the inner ring plate into multiple segments in the circumference. A cover plate is disposed on at least one of the upper and lower sides of the outer ring plate, the cover plate being used to cover the expansion groove.

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