Nano oxide calcination structure

Abstract

The utility model relates to a nanometer oxide calcining structure, which is characterized in that a calcining tube placing frame body is positioned in a calcining furnace and comprises a vertical column fixed in the calcining furnace, a calcining tube placing platform is coaxially arranged on the vertical column, and a plurality of calcining tube bodies positioned on the periphery of the vertical column are arranged on the calcining tube placing platform; a gap is formed between every two adjacent calcining pipe bodies; a high-temperature air duct is arranged inside the vertical column, and an air outlet for blowing high-temperature gas to the gap is formed outside the vertical column; and a combustion gas outlet and a combustion gas inlet are formed in each calcining pipe body. When the calcining tube is used, nano oxides needing to be calcined are separately packaged in the calcining tube bodies to be calcined, and due to the fact that the nano oxides in each calcining tube body are few, a user does not need to worry about non-uniform heating of a part of the interior of the calcining tube body; by means of the calcining pipe placing frame body, the calcining furnace and the calcining pipe placing frame body enable high-temperature gas to flow in gaps between calcining pipe bodies, and uniform contact of heat is guaranteed in an internal and external heating mode.

Description

Technical Field

[0001] The present invention relates to the technical field of nano-oxide preparation, in particular to a nano-oxide calcined structure. Background Art

[0002] Nanoparticles refer to oxides with nanometer-sized particles, such as nano-titanium dioxide, nano-silicon dioxide, nano-zinc oxide, nano-aluminum oxide (L30), nano-zirconium oxide, nano-cerium oxide, and nano-iron oxide. Nanoparticles are excellent catalytic materials due to their large surface area and numerous surface active centers. Forming ordinary metal catalysts such as iron, cobalt, nickel, palladium, and platinum into nanoparticles can significantly improve catalytic performance. Using nanocatalytic materials in the petrochemical industry can increase reactor efficiency, improve product structure, and enhance product added value, yield, and quality.

[0003] Nano-oxides are generally prepared by calcination, but there is a problem of uneven heating during the preparation process, resulting in poor calcination effect. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a nano-oxide calcined structure, which solves the problem of poor calcination effect caused by uneven heating during the preparation process.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] In a first aspect, an embodiment of the present invention provides a nano-oxide calcined structure, comprising:

[0009] calciner;

[0010] A calcining tube placement frame is located in the calcining furnace and includes a vertical column fixed in the calcining furnace. A calcining tube placement platform is coaxially provided on the vertical column. A plurality of calcining tube bodies are provided on the calcining tube placement platform around the vertical column, and a gap is provided between two adjacent calcining tube bodies. The interior of the vertical column is provided with a high-temperature air duct, and the exterior is provided with an air outlet for blowing high-temperature gas into the gap. Each of the calcining tube bodies is provided with a combustion gas outlet and a combustion gas inlet.

[0011] Optionally, the calcining tube placement platform is provided with a plurality of slots for placing the calcining tube body; the plurality of slots are distributed in a ring array, a rectangular array or a honeycomb shape.

[0012] Optionally, there are multiple calcining tube placement platforms, which are spaced apart along the axial direction of the vertical column, and the slot does not penetrate the calcining tube placement platforms.

[0013] Optionally, the number of the calcining tube placement platforms is two, and they are spaced apart along the axial direction of the vertical column, and the slot passes through the calcining tube placement platforms.

[0014] Optionally, an air duct is provided in the gap, the air duct is connected to the air outlet of the vertical column, and a plurality of hollow holes are provided on the outer side of the air duct;

[0015] The air guide ducts in all gaps form a mesh structure.

[0016] Optionally, the calcining furnace is a closed box structure, and is provided with a high-temperature air inlet and a high-temperature air outlet.

[0017] Optionally, the outer side of the box structure is covered with a thermal insulation layer.

[0018] (3) Beneficial effects

[0019] The beneficial effects of the present invention are as follows: a nano-oxide calcining structure of the present invention comprises a vertical column fixed in the calcining furnace, a calcining tube placement frame is coaxially provided on the vertical column, a calcining tube placement platform is provided on the calcining tube placement platform, a plurality of calcining tube bodies are provided around the vertical column, and a gap is provided between two adjacent calcining tube bodies; the interior of the vertical column is provided with a high-temperature air duct, and the exterior is provided with an air outlet for blowing high-temperature gas into the gap; wherein each calcining tube body is provided with a combustion gas outlet and a combustion gas inlet. When in use, the nano-oxides to be calcined are divided into a plurality of calcining tube bodies for calcination. Since there are fewer nano-oxides in each calcining tube body, there is no need to worry about uneven heating of a part of the interior, and the overall nano-oxides that can be calcined at one time will not be reduced; at the same time, the calcining furnace and the calcining tube placement frame are used to make the high-temperature gas flow in the gap between the calcining tube bodies, forming a secondary heating mode that strengthens the heat and temperature on the outside, thereby ensuring uniform heat contact inside and outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic top view of the nano-oxide calcined structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the explosion structure of the nano-oxide calcined structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the explosion structure of the nano-oxide calcined structure of the present invention from another perspective.

[0023] [Description of Reference Numerals]

[0024] 1. Calcination furnace; 2. Vertical column; 3. Calcination tube placement platform; 4. Calcination tube body; 5. Air guide duct. DETAILED DESCRIPTION

[0025] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0026] The embodiment of the present invention provides a nano-oxide calcined structure, which solves the problem of poor calcination effect caused by uneven heating during the preparation process.

[0027] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0028] Reference Figure 1 and Figure 3 , a nano-oxide calcined structure, comprising:

[0029] Calcination furnace 1;

[0030] The calcining tube placement frame is located in the calcining furnace 1 and includes: a vertical column 2 fixed in the calcining furnace 1, a calcining tube placement platform 3 is coaxially provided on the vertical column 2, and a plurality of calcining tube bodies 4 are provided on the calcining tube placement platform 3 around the vertical column 2, with a gap between two adjacent calcining tube bodies 4; the interior of the vertical column 2 is provided with a high-temperature air duct, and the outside is provided with an air outlet for blowing high-temperature gas into the gap; wherein, each calcining tube body 4 is provided with a combustion gas outlet and a combustion gas inlet.

[0031] During use, the nano-oxides to be calcined are divided into multiple calcination tube bodies 4 for calcination. Since there are fewer nano-oxides in each calcination tube body 4, there is no need to worry about uneven heating of a part of the interior. In addition, the overall nano-oxides that can be calcined at one time will not be reduced. At the same time, the calcination tube placement frame is used to allow the calcination furnace 1 and the calcination tube placement frame to allow high-temperature gas to flow in the gap between the calcination tube bodies 4, forming a secondary heating method on the outside to enhance heat and temperature, thereby ensuring uniform heat contact inside and outside.

[0032] The above can be understood as follows: the combustion gas inside the calcining tube body 4 is burned to calcine the nano-oxide inside. The external vertical column 2 sends high-temperature gas into the gap between the calcining tube body 4, thereby heating the inside and outside and heating evenly.

[0033] In addition, the original calcination method of the nano-oxides piled together is changed to dividing them into multiple portions and loading them into multiple calcination tube bodies 4. This eliminates the problem that the nano-oxides located inside cannot be uniformly heated and calcined due to the large amount of nano-oxides calcined at one time.

[0034] In some preferred embodiments, there are two descriptions of the placement of the calcining tube body 4:

[0035] The first method is to have two calcining tube placement platforms 3 spaced apart along the axial direction of the vertical column 2, with the slots passing through the calcining tube placement platforms 3. In this method, the calcining tube body 4 on each calcining tube placement platform 3 is not interconnected with the calcining tube body 4 on other calcining tube placement platforms 3.

[0036] The second type is that there are multiple calcining tube placement platforms 3, which are spaced apart along the axial direction of the vertical column 2, and the slot is not provided with a calcining tube placement platform 3.

[0037] This method enables the two calcining tube placement platforms 3 to limit the calcining tube body 4 in both the upper and lower directions.

[0038] The above two methods can be selected for application, depending on the specific amount of nano-oxides that need to be calcined at one time.

[0039] In some preferred embodiments, the calcining tube placement platform 3 is provided with a plurality of slots for placing the calcining tube body 4. The slots are arranged in a circular array, a rectangular array, or a honeycomb pattern. Various distribution patterns are possible, as long as there is sufficient clearance.

[0040] In some preferred embodiments, air ducts 5 are provided in the gaps, communicating with the air outlets of the vertical columns 2 and having multiple hollow holes on their outer sides. The air ducts 5 in all gaps form a mesh structure. This mesh structure further ensures the flow of high-temperature gas within the gaps and also serves as a support structure for the calcining tube body 4.

[0041] In some preferred embodiments, the calcining furnace 1 is a closed box structure with a high-temperature air inlet and a high-temperature air outlet. External high-temperature gas circulates within the box structure through the high-temperature air inlet and high-temperature air outlet. The outer surface of the box structure is coated with an insulation layer. The provision of the insulation layer ensures that heat within the calcining furnace 1 is not lost.

[0042] Common insulation materials include: Inorganic materials: such as rock wool, glass wool, aluminum silicate wool, asbestos, foam cement board, perlite, vermiculite, slag wool, microporous calcium silicate, foam cement, etc. These materials usually have a lightweight, porous structure and can effectively prevent heat transfer. Organic materials: such as polystyrene foam, polyurethane board, extruded styrene foam, molded polystyrene foam, phenolic resin board, etc. These materials usually have good thermal insulation properties and low thermal conductivity. Composite materials: such as aluminum foil rubber, self-adhesive rubber, cement fiber board, Class B composite insulation board, etc. Soft porcelain insulation material: made of natural soil, stone powder and other inorganic substances, mixed and modified, with good earthquake resistance, crack resistance, frost resistance, anti-fouling and self-cleaning properties.

[0043] In addition, there are metal protective layers, such as galvanized steel plates, ordinary thin steel plates and aluminum alloy plates, etc. When choosing insulation materials, factors such as thermal conductivity, density, fire resistance, durability and ease of construction need to be considered.

[0044] Beneficial effects of this application:

[0045] During use, the nano-oxides to be calcined are divided into multiple calcination tube bodies 4 for calcination. Since there are fewer nano-oxides in each calcination tube body 4, there is no need to worry about uneven heating of a part of the interior. In addition, the overall nano-oxides that can be calcined at one time will not be reduced. At the same time, the calcination tube placement frame is used to allow the calcination furnace 1 and the calcination tube placement frame to allow high-temperature gas to flow in the gap between the calcination tube bodies 4, forming a secondary heating method on the outside to enhance heat and temperature, thereby ensuring uniform heat contact inside and outside.

[0046] The above can be understood as follows: the combustion gas inside the calcining tube body 4 is burned to calcine the nano-oxide inside. The external vertical column 2 sends high-temperature gas into the gap between the calcining tube body 4, thereby heating the inside and outside and heating evenly.

[0047] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0048] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0049] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0050] In the description of this specification, the terms "one embodiment", "some embodiments", "embodiments", "examples", "specific examples" or "some examples" refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example and included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are mutually inconsistent.

[0051] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A nano-oxide calcined structure, characterized in that: It includes: calcining furnace (1); A calcining tube placement frame is located in the calcining furnace (1), and comprises a vertical column (2) fixed in the calcining furnace (1); a calcining tube placement platform (3) is coaxially provided on the vertical column (2); a plurality of calcining tube bodies (4) are provided on the calcining tube placement platform (3) and are located around the vertical column (2); a gap is provided between two adjacent calcining tube bodies (4); a high-temperature air duct is provided inside the vertical column (2), and an air outlet is provided outside the vertical column (2) for blowing high-temperature gas into the gap; wherein each of the calcining tube bodies (4) is provided with a combustion gas outlet and a combustion gas inlet.

2. The nano-oxide calcined structure according to claim 1, wherein: The calcining tube placement platform (3) is provided with a plurality of slots for placing the calcining tube body (4); the plurality of slots are distributed in a ring array, a rectangular array or a honeycomb shape.

3. The nano-oxide calcined structure according to claim 2, wherein: The number of the calcining tube placement platforms (3) is multiple and is distributed at intervals along the axial direction of the vertical column (2), and the clamping slot does not penetrate the calcining tube placement platforms (3).

4. The nano-oxide calcined structure according to claim 2, wherein: The number of the calcining tube placement platforms (3) is two, and they are spaced apart along the axial direction of the vertical column (2), and the clamping groove passes through the calcining tube placement platforms (3).

5. The nano-oxide calcined structure according to claim 4, characterized in that: An air guide pipe (5) is provided in the gap, the air guide pipe (5) is connected to the air outlet of the vertical column (2), and a plurality of hollow holes are provided on the outer side of the air guide pipe (5); The air guide pipes (5) in all the gaps form a mesh structure.

6. The nano-oxide calcined structure according to claim 1, wherein: The calcining furnace (1) is a closed box structure and is provided with a high-temperature air inlet and a high-temperature air outlet.

7. The nano-oxide calcined structure according to claim 6, characterized in that: The outer side of the box structure is covered with a heat-insulating layer.

Images