All-fiber graphite product shuttle kiln

Abstract

The utility model discloses an all-fiber graphite product shuttle kiln, and relates to the technical field of shuttle kilns. An all-fiber graphite product shuttle kiln comprises a shuttle kiln body, the front side of the shuttle kiln body is rotationally connected with a sealing door, a heat preservation layer is arranged in the shuttle kiln body, a heat-resisting layer is arranged in the heat preservation layer, a flame-retardant layer is arranged in the heat-resisting layer, the heat preservation layer comprises a graphite layer, and the graphite layer is arranged in the heat-resisting layer. The heat-resistant layer comprises a graphite layer, a glass wool layer is arranged in the graphite layer, the thickness of the glass wool layer is larger than that of the graphite layer, the heat-resistant layer comprises a ceramic heat-insulation board layer, a rock wool board layer is arranged in the ceramic heat-insulation board layer, and the thickness of the rock wool board layer is larger than that of the ceramic heat-insulation layer. The technical problems that an existing shuttle kiln is poor in heat preservation performance, when people use the shuttle kiln, the phenomenon of internal heat loss is likely to happen, the internal temperature is unbalanced, the daily use requirement cannot be met, and people cannot use the shuttle kiln conveniently are solved.

Description

Technical Field

[0001] This utility model relates to the field of shuttle kiln technology, and in particular to a shuttle kiln for all-fiber graphite products. Background Technology

[0002] A shuttle kiln is a kiln that fires intermittently. It has a structure similar to a matchbox. The kiln car is pushed into the kiln to fire, and after firing, it is pulled out in the opposite direction to unload the fired ceramics. The kiln car is like a shuttle, hence the name shuttle kiln.

[0003] However, existing technologies have some problems: existing shuttle kilns have poor heat preservation, which can easily cause internal heat loss when people use them, leading to internal temperature imbalance and failing to meet daily use needs, making them inconvenient for people to use. Therefore, it is necessary to provide a shuttle kiln for all-fiber graphite products to solve the above technical problems. Utility Model Content

[0004] This utility model provides a shuttle kiln for all-fiber graphite products, which solves the technical problem of existing shuttle kilns having poor heat preservation, causing heat loss during use, leading to internal temperature imbalance, failing to meet daily use needs, and being inconvenient for users.

[0005] To solve the above-mentioned technical problems, this utility model provides a shuttle kiln for all-fiber graphite products, comprising:

[0006] The shuttle kiln body has a sealing door rotatably connected to its front side. The interior of the shuttle kiln body is provided with a heat insulation layer, the interior of the heat insulation layer is provided with a heat-resistant layer, and the interior of the heat-resistant layer is provided with a flame-retardant layer.

[0007] Preferably, the insulation layer includes a graphite layer, and a glass wool layer is disposed inside the graphite layer, the thickness of the glass wool layer being greater than the thickness of the graphite layer.

[0008] Preferably, the heat-resistant layer includes a ceramic insulation board layer, and a rock wool board layer is disposed inside the ceramic insulation board layer, wherein the thickness of the rock wool board layer is greater than the thickness of the ceramic insulation layer.

[0009] Preferably, the flame-retardant layer includes a mullite ceramic layer, and a refractory clay layer is disposed inside the mullite ceramic layer, wherein the thickness of the refractory clay layer is greater than the thickness of the mullite ceramic layer.

[0010] Preferably, the thickness of the flame-retardant layer is greater than the thickness of the insulation layer and the thickness of the heat-resistant layer.

[0011] Compared with related technologies, the shuttle kiln for all-fiber graphite products provided by this utility model has the following beneficial effects:

[0012] This utility model provides a shuttle kiln made entirely of fiber graphite. By setting up an insulation layer, the main body of the shuttle kiln is effectively insulated during use, thus solving the problem of poor insulation performance of the main body of the shuttle kiln during use.

[0013] This utility model provides a shuttle kiln made of all-fiber graphite products. The heat-resistant layer provides good heat insulation for the main body of the shuttle kiln during use, thus solving the problem of poor heat insulation performance of the main body of the shuttle kiln during use.

[0014] This utility model provides a shuttle kiln made entirely of fiber graphite. By using a flame-retardant layer, the main body of the shuttle kiln has good fire resistance during use, thus solving the problem of poor fire resistance of the main body of the shuttle kiln during use. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of a shuttle kiln for all-fiber graphite products provided by this utility model;

[0016] Figure 2 This is a partial cross-sectional view of the insulation layer structure of this utility model;

[0017] Figure 3 This is a partial cross-sectional view of the heat-resistant layer structure of this utility model;

[0018] Figure 4 This is a partial cross-sectional view of the flame-retardant layer structure of this utility model.

[0019] The following are labeled in the diagram: 1. Shuttle kiln body; 2. Sealed door; 3. Insulation layer; 31. Graphite layer; 32. Glass wool layer; 4. Heat-resistant layer; 41. Ceramic insulation board layer; 42. Rock wool board layer; 5. Flame-retardant layer; 51. Mullite ceramic layer; 52. Refractory clay layer. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Example 1:

[0022] Please see Figure 1-4 This utility model provides a technical solution: a shuttle kiln for all-fiber graphite products, comprising: a shuttle kiln body 1, a sealing door 2 rotatably connected to the front side of the shuttle kiln body 1, an insulation layer 3 inside the shuttle kiln body 1, a heat-resistant layer 4 inside the insulation layer 3, and a flame-retardant layer 5 inside the heat-resistant layer 4.

[0023] In this embodiment, the graphite layer 31 is provided. Graphite, also known as black lead, is an allotrope of carbon with a relative density of 2.256 g / cm3. Graphite is opaque and has an oily feel. Its color varies from iron black to steel gray, and its shape can be crystalline, flake-like, scaly, striped, or layered. Graphite has low hardness, stable chemical properties, and does not easily react with acids, alkalis, or other agents. It is resistant to high temperatures, corrosion, thermal shock, and radiation. It also has high strength, good toughness, self-lubricating properties, and electrical and thermal conductivity. It is widely used in metallurgy, machinery, electronics, military, defense, aerospace, and other fields. The rock wool board layer 42 is provided. Rock wool board is an artificial inorganic fiber processed by high-temperature melting. It has the characteristics of being lightweight, having a low thermal conductivity, absorbing heat, and being non-combustible. It also has advantages such as heat insulation, flame retardancy, and sound absorption.

[0024] Example 2:

[0025] Please see Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: the insulation layer 3 includes a graphite layer 31, and a glass wool layer 32 is disposed inside the graphite layer 31. The thickness of the glass wool layer 32 is greater than the thickness of the graphite layer 31. The heat-resistant layer 4 includes a ceramic insulation board layer 41, and a rock wool board layer 42 is disposed inside the ceramic insulation board layer 41. The thickness of the rock wool board layer 42 is greater than the thickness of the ceramic insulation layer 3. The flame-retardant layer 5 includes a mullite ceramic layer 51, and a refractory clay layer 52 is disposed inside the mullite ceramic layer 51. The thickness of the refractory clay layer 52 is greater than the thickness of the mullite ceramic layer 51. The thickness of the flame-retardant layer 5 is greater than the thickness of the insulation layer 3 and the thickness of the heat-resistant layer 4.

[0026] In this embodiment: the mullite ceramic layer 51 is provided, where the mechanical properties of the sintered mullite ceramic are determined by the Al2O3 / SiO2 ratio and microstructure. In particular, the mullite ceramic with an Al2O3 content of 68% has a flexural strength of 570MPa and a fracture toughness of 5.7MPa·Nm at 1300℃, both of which are 1.6 times higher than at room temperature. This characteristic of strength and toughness not only not decreasing but greatly increasing with increasing temperature is unique among existing high-temperature ceramic materials except SiC. This is also an excellent characteristic of mullite ceramic as a high-temperature material. The refractory clay layer 52 is provided, where refractory clay refers to clay with a refractoriness greater than 1580℃ that can be used as a refractory material and bauxite used as a refractory material. In addition to having high refractoriness, they can maintain volume stability under high-temperature conditions and have slag resistance, resistance to rapid heating and cooling, and a certain mechanical strength. Therefore, they are exceptionally firm after calcination.

[0027] The working principle of the shuttle kiln for all-fiber graphite products provided by this utility model is as follows:

[0028] Implementation steps for the first innovation point:

[0029] Step 1: By setting up graphite layer 31, graphite, also known as black lead, is an allotrope of carbon with a relative density of 2.256 g / cm3. Graphite is opaque and has an oily feel. Its color varies from iron black to steel gray. Its shape can be crystalline, flake, scaly, striped, or layered. Graphite has low hardness, stable chemical properties, and does not easily react with acids, alkalis, and other agents. It is resistant to high temperatures, corrosion, thermal shock, and radiation. It has high strength, good toughness, and also has self-lubricating, electrical, and thermal conductivity properties. It is widely used in metallurgy, machinery, electronics, military, national defense, aerospace, and other fields.

[0030] Step 2: By setting up rock wool board layer 42, the rock wool board is an artificial inorganic fiber processed by high temperature melting. It has the characteristics of light weight, low thermal conductivity, heat absorption and non-combustibility, and also has the advantages of heat preservation, fire protection and sound absorption.

[0031] Implementation steps for the second innovation point:

[0032] Step 1: Through the setting of mullite ceramic layer 51, the mechanical properties of the mullite ceramic sintered body are determined by the Al2O3 / SiO2 ratio and microstructure. In particular, the mullite ceramic with Al2O3 content of 68% has a flexural strength of 570MPa and a fracture toughness Kic of 5.7MPa.Nm at 1300℃, which are 1.6 times higher than at room temperature. This kind of strength and toughness not only does not decrease with increasing temperature but also increases significantly, which is unique among existing high-temperature ceramic materials except SiC. This is also the excellent characteristic of mullite ceramic as a high-temperature material.

[0033] Step 2: By setting the refractory clay layer 52, the refractory clay refers to clay with a refractoriness greater than 1580℃ that can be used as refractory material and bauxite used as refractory material. In addition to having high refractoriness, they can maintain volume stability under high temperature conditions, and have slag resistance, resistance to rapid cooling and heating, and a certain mechanical strength. Therefore, they are exceptionally firm after calcination.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shuttle kiln for all-fiber graphite products, characterized in that: include: The shuttle kiln body (1) has a sealing door (2) rotatably connected to the front side of the shuttle kiln body (1). The interior of the shuttle kiln body (1) is provided with a heat insulation layer (3). The interior of the heat insulation layer (3) is provided with a heat-resistant layer (4). The interior of the heat-resistant layer (4) is provided with a flame-retardant layer (5).

2. The shuttle kiln for all-fiber graphite products according to claim 1, characterized in that, The insulation layer (3) includes a graphite layer (31), and a glass wool layer (32) is disposed inside the graphite layer (31). The thickness of the glass wool layer (32) is greater than the thickness of the graphite layer (31).

3. The shuttle kiln for all-fiber graphite products according to claim 1, characterized in that, The heat-resistant layer (4) includes a ceramic insulation board layer (41), and a rock wool board layer (42) is provided inside the ceramic insulation board layer (41). The thickness of the rock wool board layer (42) is greater than the thickness of the ceramic insulation layer (3).

4. The shuttle kiln for all-fiber graphite products according to claim 1, characterized in that, The flame-retardant layer (5) includes a mullite ceramic layer (51), and a refractory clay layer (52) is disposed inside the mullite ceramic layer (51). The thickness of the refractory clay layer (52) is greater than the thickness of the mullite ceramic layer (51).

5. A shuttle kiln for all-fiber graphite products according to claim 1, characterized in that, The thickness of the flame-retardant layer (5) is greater than the thickness of the insulation layer (3) and the thickness of the heat-resistant layer (4).

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