Preheater inner cylinder with stable temperature

Abstract

The utility model relates to the technical field of preheater inner cylinders, and discloses a preheater inner cylinder with stable temperature. The preheater inner cylinder with the stable temperature comprises a plate face assembly, a second mounting layer is mounted at the upper end of the plate face assembly, a connecting hole is formed in the inner wall of the upper end of the second mounting layer, a splicing groove is formed in the left side of the upper end of the second mounting layer, and an inserting block is mounted on the right side of the second mounting layer; a reinforcing connecting assembly is installed in the plate face assembly, a wear-resisting inner layer assembly is installed on the inner wall of the plate face assembly, a ceramic piece is installed at the upper end of the wear-resisting inner layer assembly, a fixing plate is installed at the upper end of the ceramic piece, and a mounting ring is installed at the upper end of the fixing plate. Metal materials are poor in thermal stability and prone to oxidation, corrosion, deformation and the like, so that the service life of the inner cylinder of the preheater is shortened, and the later maintenance cost of the inner cylinder of the preheater is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of preheater inner cylinders, in particular to a preheater inner cylinder with stable temperature. Background Art

[0002] In existing preheater technology, the inner tube is mostly made of metal materials. Although metal materials have good thermal conductivity and mechanical strength, they have poor thermal stability in high-temperature environments and are prone to oxidation, corrosion, and deformation. This shortens the service life of the inner tube and increases maintenance costs.

[0003] An existing Chinese utility model patent with reference publication number CN105371663A discloses a preheater inner cylinder comprising a cylinder body, a buffer layer mounted on the inner wall of the cylinder body, and an arcuate ceramic hanging plate mounted on the inner wall of the buffer layer. The ceramic hanging plate comprises a first wedge-shaped hanging plate and a second wedge-shaped hanging plate. The first wedge-shaped hanging plate is a wedge-shaped plate with a larger upper portion and a smaller lower portion, while the second wedge-shaped hanging plate is a wedge-shaped plate with a smaller upper portion and a larger lower portion. The first and second wedge-shaped hanging plates have the same wedge angle. The first wedge-shaped hanging plate has a first protrusion extending toward the bottom at its upper end, and the second wedge-shaped hanging plate has a first groove corresponding to the first protrusion. When the first and second wedge-shaped hanging plates are assembled, the first protrusion and the first groove mate with each other. The top end of the ceramic hanging plate is provided with a second protrusion extending upward, and the bottom end of the ceramic hanging plate is provided with a second groove opening downward to accommodate the second protrusion. In this preheater inner cylinder, the ceramic hanging plates are seamlessly connected, ensuring strong tightness.

[0004] Based on the search of the above patents and combined with the equipment in the prior art, it was found that in the existing preheater technology, the inner cylinder of the preheater is mostly made of metal materials. Although metal materials have good thermal conductivity and mechanical strength, under high temperature environments, metal materials have poor thermal stability and are prone to oxidation, corrosion and deformation. These problems shorten the service life of the inner cylinder of the preheater and increase the maintenance cost of the inner cylinder of the preheater in the later stage. At the same time, there are also deficiencies in structural design and connection technology, which cannot meet the long-term use requirements in extreme process environments. The existence of these problems has affected the use of the device. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides a temperature-stable preheater inner cylinder, which can effectively prevent problems such as poor thermal stability of metal materials in high temperature environments, and easy oxidation, corrosion and deformation, which shorten the service life of the preheater inner cylinder and increase the maintenance cost of the preheater inner cylinder in the later stage.

[0007] Technical Solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a temperature-stable preheater inner cylinder, comprising a plate assembly, the interior of which is installed with a reinforcement connection assembly that facilitates the connection and fixation of ceramic sheets and facilitates the subsequent reinforcement of the interior of the mounting layer; the inner wall of the plate assembly is installed with a wear-resistant inner layer assembly that facilitates the replacement of the original metal of the inner cylinder with a ceramic structure and facilitates the subsequent increase in the temperature resistance and wear resistance of the inner cylinder.

[0009] A second mounting layer is installed on the upper end of the panel assembly, a connecting hole is installed on the inner wall of the upper end of the second mounting layer, a splicing groove is installed on the left side of the upper end of the second mounting layer, an insert block is installed on the right side of the second mounting layer, and the splicing groove is installed on the left side of the mounting layer to facilitate subsequent interlaced connection with the insert block, thereby facilitating subsequent splicing between the mounting layers;

[0010] A ceramic sheet is installed at the upper end of the wear-resistant inner layer component, a fixing plate is installed at the upper end of the ceramic sheet, and a mounting ring is installed at the upper end of the fixing plate, and a through-plate is installed at the lower end of the mounting ring, which is convenient for subsequent connection to the interior of the casting layer through the through-plate to connect the mounting ring.

[0011] As a preferred technical solution of the present invention, a first installation layer is installed on the upper end of the panel assembly, and the first installation layer and the second installation layer form an inner tube for easy subsequent use.

[0012] As an optimal technical solution of the present invention, a casting layer is installed on the upper end of the reinforced connection assembly, and a reinforcement net is installed inside the casting layer. A reinforcement rib is installed on the upper end of the reinforcement net, and the reinforcement rib is installed at the rear end of the connecting hole to facilitate the subsequent fixed connection of the ceramic sheet.

[0013] As a preferred technical solution of the present invention, a connecting ring is installed at the lower end of the wear-resistant inner layer assembly, and the connecting ring is installed at the lower end of the ceramic sheet to facilitate subsequent splicing and connection of the lower end of the installation layer.

[0014] As a preferred technical solution of the present invention, the reinforced connection component is installed inside the second installation layer in the panel component, and the wear-resistant inner layer component is installed on the inner side of the second installation layer in the panel component.

[0015] As a preferred technical solution of the present invention, the first installation layer and the second installation layer have the same structure, the number of the connection holes is four, and the splicing groove is connected with the insertion block for use.

[0016] As a preferred technical solution of the present invention, the casting layer is installed inside the second installation layer, the reinforcement mesh is a detachable structure, and the reinforcement ribs are installed at the rear end of the connecting hole.

[0017] As a preferred technical solution of the present invention, the ceramic sheet is silicon nitride ceramic, the connecting ring is installed at the lower ends of the first installation layer and the second installation layer, and the installation ring is installed at the upper end of the casting layer.

[0018] Compared with the prior art, the present invention provides a temperature-stable preheater inner cylinder with the following beneficial effects:

[0019] 1. The utility model adopts the ceramic material with excellent high temperature resistance and ablation resistance for the inner tube through the setting of the overall device, so that the inner tube can be used for a long time in a high temperature environment. The inner tube adopts silicon nitride ceramic, which is famous for its high strength, high hardness, wear resistance, corrosion resistance and excellent electrical insulation. It is known as the "all-round champion" among ceramic materials. It has excellent high temperature resistance and excellent corrosion resistance. In addition to hydrofluoric acid, it can resist the corrosion of various other acids, and can resist the corrosion of alkali and various metals, which significantly improves the service life of the inner tube. Splicing grooves and insert blocks are installed on both sides of the installation layer. The multi-section splicing structure design ensures The structural stability and strength of the inner tube are ensured, while it is easy to disassemble and replace, which reduces maintenance costs. By optimizing the manufacturing process and improving production efficiency, the production cost of the ceramic inner tube is reduced, making it more competitive in the market, and effectively preventing the preheater inner tube from being made of metal materials. Although metal materials have good thermal conductivity and mechanical strength, they have poor thermal stability in high temperature environments and are prone to oxidation, corrosion, deformation and other problems, which shorten the service life of the preheater inner tube and increase the maintenance cost of the preheater inner tube in the later period. At the same time, there are also deficiencies in structural design and connection technology, which cannot meet the long-term use requirements in extreme process environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structural panel assembly of the utility model;

[0022] Figure 3 This is a schematic diagram of the structural reinforcement connection assembly of the utility model;

[0023] Figure 4 This is a schematic diagram of the wear-resistant inner layer component of the utility model structure.

[0024] Among them: 1. Board surface assembly; 101. First installation layer; 102. Second installation layer; 103. Connection hole; 104. Splicing groove; 105. Insert block; 2. Reinforcement connection assembly; 201. Casting layer; 202. Reinforcement mesh; 203. Reinforcement rib; 3. Wear-resistant inner layer assembly; 301. Ceramic sheet; 302. Connection ring; 303. Fixing plate; 304. Installation ring; 305. Insert plate. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] See also Figure 1 - Figure 4 In this embodiment, a temperature-stable preheater inner cylinder includes: a plate assembly 1, a second mounting layer 102 is installed on the upper end of the plate assembly 1, a connecting hole 103 is installed on the inner wall of the upper end of the second mounting layer 102, a splicing groove 104 is installed on the left side of the upper end of the second mounting layer 102, an insertion block 105 is installed on the right side of the second mounting layer 102, a reinforced connection assembly 2 is installed inside the plate assembly 1, a wear-resistant inner layer assembly 3 is installed on the inner wall of the plate assembly 1, a ceramic sheet 301 is installed on the upper end of the ceramic sheet 301, a fixing plate 303 is installed on the upper end of the fixing plate 303, and a mounting ring 304 is installed on the upper end of the fixing plate 303, and a through plate 305 is installed on the lower end of the mounting ring 304.

[0029] Through the above structure: the panel component 1 facilitates the connection and installation of the upper end component, which is convenient for subsequent use; the reinforced connection component 2 facilitates the connection and fixation of the ceramic sheet 301, and facilitates the subsequent reinforcement of the inside of the installation layer; the wear-resistant inner layer component 3 facilitates the replacement of the original metal of the inner tube with a ceramic structure, which facilitates the subsequent increase in the temperature resistance and wear resistance of the inner tube.

[0030] See also Figure 1 - Figure 4 The upper end of the panel assembly 1 is installed with a first mounting layer 101 , and the structure of the first mounting layer 101 is the same as that of the second mounting layer 102 . There are four connecting holes 103 , and the splicing groove 104 is connected with the insertion block 105 for use.

[0031] Through the above structure: the inner cylinder is formed by installing the first mounting layer 101 and the second mounting layer 102, which is convenient for subsequent use, the connecting hole 103 is installed on the inner side of the mounting layer, which is convenient for the subsequent connection of the ceramic sheet 301, and the splicing groove 104 is installed on the left side of the mounting layer, which is convenient for the subsequent interlaced connection with the insertion block 105, so as to facilitate the subsequent splicing between the mounting layers.

[0032] See also Figure 1 - Figure 4 A casting layer 201 is installed at the upper end of the reinforced connection component 2, and a reinforcing net 202 is installed inside the casting layer 201. A reinforcing rib 203 is installed at the upper end of the reinforcing net 202. The casting layer 201 is installed inside the second installation layer 102. The reinforcing net 202 is a disassembly structure. The reinforcing rib 203 is installed at the rear end of the connecting hole 103.

[0033] Through the above structure: by installing the pouring layer 201, concrete is poured into the interior of the installation layer, which is convenient for the subsequent reinforcement of the interior of the installation layer. The reinforcement net 202 is installed inside the pouring layer 201, which is convenient for the subsequent increase of the connectivity between the concrete through the reinforcement net 202. The reinforcement rib 203 is installed at the rear end of the connecting hole 103, which is convenient for the subsequent fixed connection of the ceramic sheet 301.

[0034] See also Figure 1 - Figure 4 A connecting ring 302 is installed at the lower end of the wear-resistant inner layer component 3, and the ceramic piece 301 is silicon nitride ceramic. The connecting ring 302 is installed at the lower end of the first installation layer 101 and the second installation layer 102, and the installation ring 304 is installed at the upper end of the casting layer 201.

[0035] Through the above structure: by installing the ceramic sheet 301, the high temperature resistance and wear resistance of the inner wall of the inner tube are increased, which is convenient for subsequently increasing the service life of the inner tube; the connecting ring 302 is installed at the lower end of the ceramic sheet 301, which is convenient for subsequently splicing and connecting the lower end of the installation layer; the fixing plate 303 is installed at the upper end of the ceramic sheet 301, which is convenient for subsequently fixing the upper end of the ceramic sheet 301; the mounting ring 304 is installed at the upper end of the fixing plate 303, which is convenient for subsequently connecting and fixing the upper end of the installation layer with the upper end of the ceramic sheet 301; the insertion plate 305 is installed at the lower end of the mounting ring 304, which is convenient for subsequently connecting to the interior of the casting layer 201 through the insertion plate 305 to connect the mounting ring 304.

[0036] When in use, first, the original metal material of the inner cylinder is replaced with ceramic sheet 301 (silicon nitride ceramic). Ceramic sheet 301 (silicon nitride ceramic) is famous for its high strength, high hardness, wear resistance, corrosion resistance and excellent electrical insulation. It is known as the "all-around champion" among ceramic materials. It has excellent high temperature resistance and excellent corrosion resistance. In addition to hydrofluoric acid, it can withstand corrosion from various other acids, and can withstand corrosion from alkalis and various metals, which significantly improves the service life of the inner cylinder. The use of ceramic materials with excellent high temperature resistance and ablation resistance enables the inner cylinder to be used for a long time in a high temperature environment. In order to facilitate the subsequent quick replacement and disassembly of the inner cylinder, the inner cylinder is divided into multiple installation layers. Between the first installation layer 101 and the second installation layer 102 Splicing grooves 104 and insertion blocks 105 are installed on both sides, and the installation layers are connected to the inside of the splicing grooves 104 by means of the insertion blocks 105. In order to facilitate the fixation of the installation layers, connecting rings 302 are installed at the lower ends of the first installation layer 101 and the second installation layer 102, and the installation layers are connected and fixed by the connecting rings 302. A casting layer 201 is installed inside the installation layer, and a reinforcement mesh 202 is installed inside the casting layer 201. The overall structure is reinforced and connected by pouring cement into the casting layer 201. A mounting ring 304 is installed at the upper end of the casting layer 201, and a through plate 305 is installed at the lower end of the mounting ring 304. The installation layers are connected by fixing the through plate 305 to the inside of the casting layer 201.

[0037] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature-stable preheater inner cylinder, characterized in that: The invention comprises a panel assembly (1), wherein a second mounting layer (102) is mounted on the upper end of the panel assembly (1), a connecting hole (103) is mounted on the inner wall of the upper end of the second mounting layer (102), a splicing groove (104) is mounted on the left side of the upper end of the second mounting layer (102), an insertion block (105) is mounted on the right side of the second mounting layer (102), a reinforcing connection assembly (2) is mounted inside the panel assembly (1), a wear-resistant inner layer assembly (3) is mounted on the inner wall of the panel assembly (1), a ceramic sheet (301) is mounted on the upper end of the wear-resistant inner layer assembly (3), a fixing plate (303) is mounted on the upper end of the ceramic sheet (301), and the fixing plate (303), a mounting ring (304) is mounted on the upper end of the fixing plate (303), and a through plate (305) is mounted on the lower end of the mounting ring (304).

2. The temperature-stable preheater inner cylinder according to claim 1, characterized in that: A first installation layer (101) is installed on the upper end of the panel assembly (1).

3. The temperature-stable preheater inner cylinder according to claim 1, characterized in that: A pouring layer (201) is installed at the upper end of the reinforcement connection assembly (2), and a reinforcement net (202) is installed inside the pouring layer (201), and a reinforcement rib (203) is installed at the upper end of the reinforcement net (202).

4. The temperature-stable preheater inner cylinder according to claim 1, characterized in that: A connecting ring (302) is installed at the lower end of the wear-resistant inner layer component (3).

5. The temperature-stable preheater inner cylinder according to claim 1, characterized in that: The reinforced connection component (2) is installed inside the second installation layer (102) in the panel component (1), and the wear-resistant inner layer component (3) is installed on the inner side of the second installation layer (102) in the panel component (1).

6. The temperature-stable preheater inner cylinder according to claim 2, characterized in that: The first installation layer (101) and the second installation layer (102) have the same structure, the number of the connection holes (103) is four, and the splicing groove (104) is connected with the insertion block (105) for use.

7. The temperature-stable preheater inner cylinder according to claim 3, characterized in that: The pouring layer (201) is installed inside the second installation layer (102), the reinforcement net (202) is a detachable structure, and the reinforcement rib (203) is installed at the rear end of the connection hole (103).

8. The temperature-stable preheater inner cylinder according to claim 4, characterized in that: The connecting ring (302) is installed at the lower ends of the first installation layer (101) and the second installation layer (102), and the installation ring (304) is installed at the upper end of the casting layer (201).

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