Preheater blanking pipe capable of uniformly heating and distributing materials
By dividing the preheater feed pipe into two parts and using polyimide hoses and moving components, the problems of uneven heating and blockage of materials in the preheater feed pipe are solved, achieving uniform heating and smooth conveying of materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 龙里红狮水泥有限公司
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-08
AI Technical Summary
The existing preheater feed pipe is prone to uneven heating and poor material decomposition when conveying a large amount of material at one time, and it is also prone to blockage, affecting the use of the equipment.
The preheater feed pipe is divided into two parts. The material is conveyed through the first feed pipe and the second feed pipe. Polyimide hoses and moving components are used to prevent blockage and ensure that the material is heated evenly.
This achieves uniform heating of materials and prevents blockage of the conveying pipe, thereby improving preheating efficiency and the reliability of the device.
Smart Images

Figure CN224215372U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of preheater feeding pipes, specifically a preheater feeding pipe that provides uniform heating and material distribution. Background Technology
[0002] A preheater is a heat exchange surface that uses flue gas from the boiler's tail flue to preheat the air entering the boiler to a certain temperature through internal heat exchange fins. It is used to improve the boiler's heat exchange performance and reduce energy consumption, and is generally referred to simply as an air preheater. It is mostly used in coal-fired boilers. In boiler applications, it is typically a three-compartment type.
[0003] The existing Chinese utility model patent with publication number CN211970923U discloses a preheater feed pipe, including a feed pipe body, a box body, an auxiliary gear, and a drive gear. Thickened plates are fixed to both sides of the feed pipe body's interior. Limiting grooves are formed on both sides of the feed pipe body opposite to the thickened plates. A receiving groove is formed on the thickened plate. A rotating shaft is rotatably mounted at the bottom of the receiving groove, and an air-locking cover is fixed to the rotating shaft. Limiting blocks are fixed to both sides of the air-locking cover and slidably mounted within the limiting grooves. The box body is fixed to the front end face of the feed pipe body. Double rotating wheels are rotatably mounted in the middle of the box body's interior, and single rotating wheels are rotatably mounted on both sides of the box body's interior. The drive gear is fixed to the rotating shaft of one of the single rotating wheels. The auxiliary gear is rotatably mounted on one side of the box body's interior. This utility model has the advantages of small size, easy installation and use, built-in design, high aesthetics, small footprint, simple structure, and low cost.
[0004] Based on the search of the aforementioned patents and the findings of existing equipment, the preheater feed pipe is typically used to transport materials or products into the preheater. When using the preheater feed pipe, a large amount of material is transported at one time, resulting in uneven heating during subsequent preheating and poor decomposition of the material. Furthermore, the feed pipe is prone to blockage during material transport, preventing subsequent material transport. All these problems affect the use of the device. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a preheater feed pipe with uniform heating and material distribution. It effectively prevents the uneven heating of materials during subsequent preheating due to excessive material being fed at one time, resulting in poor material decomposition. It also prevents the feed pipe from becoming clogged during material conveying, thus avoiding the inability to convey materials further. This invention solves the aforementioned technical problems.
[0007] Technical solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a preheater feeding pipe for uniformly heated material distribution, comprising a pipe structure assembly, wherein a conveying structure assembly is connected and installed at the lower end of the pipe structure assembly, which facilitates the subsequent conveying of materials by connecting and installing a first conveying pipe to the lower end of a second feeding pipe and vice versa; and an anti-blocking moving assembly is connected and installed on the inner side of the conveying structure assembly, which moves the connecting ring by a moving rod connected by a connecting ring, facilitating the subsequent movement of the hose.
[0009] The lower end of the pipe structure component is connected to a main pipe, and a rotating plate is connected to the inside of the main pipe. A first discharge pipe is fixedly installed on the lower left side of the main pipe, and a second discharge pipe is fixedly installed on the lower right side of the main pipe. The first discharge pipe and the second discharge pipe are fixedly installed on the left and right sides of the main pipe. The material is conveyed evenly through the first discharge pipe and the second discharge pipe, which facilitates the uniform heating of the material in the subsequent process.
[0010] The upper end of the anti-blocking moving component is equipped with an installation plate, and a moving rod is connected to the upper left side of the installation plate. A connecting plate is connected to the left side of the moving rod, and a connecting ring is connected to the left side of the connecting plate. The connecting ring connects the second conveying pipe. The second conveying pipe is moved by moving the moving rod to prevent subsequent blockage inside the second conveying pipe.
[0011] As a preferred embodiment of this utility model, the upper end of the pipe structure component is connected to and installed with an inlet, which connects to the lower main pipe and allows materials to be poured into the main pipe for conveying.
[0012] As a preferred technical solution of this utility model, a first conveying pipe is connected and installed at the upper end of the conveying structure component, and a second conveying pipe is connected and installed on the left side of the first conveying pipe. A flexible hose is fixedly installed at the lower end of the second conveying pipe. The flexible hose is made of polyimide material, which is resistant to high temperatures of over 400°C and has high insulation performance, making it easy to move the flexible hose in the future.
[0013] As a preferred technical solution of this utility model, a movable structure is installed on the upper right side of the anti-blocking movable component. The movable structure has the same structure as the movable rod, and the first conveying pipe is connected and moved through the movable structure.
[0014] As a preferred embodiment of this utility model, a conveying structure assembly is installed at the lower ends of the first and second feeding pipes in the pipeline structure assembly, and an anti-blocking moving assembly is installed on the inner side of the first and second conveying pipes in the conveying structure assembly.
[0015] As a preferred embodiment of this utility model, the inlet is connected and installed at the upper end of the main pipe, the rotating plate is rotated by an internal rotating rod, and the first discharge pipe and the second discharge pipe have the same structure.
[0016] As a preferred embodiment of this utility model, the first conveying pipe is fixedly installed at the lower end of the second feeding pipe, and the second conveying pipe is fixedly installed at the lower end of the first feeding pipe. The first conveying pipe and the second conveying pipe have the same structure, and the hose is made of polyimide.
[0017] As a preferred embodiment of this utility model, the moving structure is the same as the structure at the upper end of the moving rod, the moving structure connects the first conveying pipe, and the connecting ring connects the hose at the second conveying pipe.
[0018] Compared with the prior art, the present invention provides a preheater feed pipe with uniform heating and distribution, which has the following beneficial effects:
[0019] 1. This utility model, through the design of the overall device, divides the original preheater feed pipe into two parts in the pipeline structure component. The material is conveyed through the first and second feed pipes, ensuring uniform heating and more thorough decomposition of the material. A flexible hose is installed in the conveying structure component and fixedly installed at the lower end of the first and second conveying pipes. The hose is made of polyimide, which is resistant to high temperatures of over 400℃ and has high insulation properties. A connecting ring is connected to the outer end of the hose, and a connecting plate is connected to the upper end of the connecting ring. A moving rod is connected to the connecting plate, and the moving rod moves the connecting ring, facilitating the movement of the hose and preventing subsequent blockage of the hose. This effectively prevents uneven heating during preheating of the material when the preheater feed pipe is used, which would result in poor material decomposition. It also prevents blockage of the feed pipe during material conveying, which would otherwise prevent the material from being conveyed. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the pipe structure component of this utility model;
[0022] Figure 3 This is a schematic diagram of the conveying structure component of this utility model;
[0023] Figure 4 This is a schematic diagram of the anti-blocking moving component of this utility model;
[0024] The components include: 1. Pipeline structure assembly; 101. Inlet; 102. Main pipe; 103. Rotating plate; 104. First discharge pipe; 105. Second discharge pipe; 2. Conveying structure assembly; 201. First conveying pipe; 202. Second conveying pipe; 203. Hose; 3. Anti-blocking moving assembly; 301. Mounting plate; 302. Moving structure; 303. Moving rod; 304. Connecting plate; 305. Connecting ring. Detailed Implementation
[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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 do not 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. In addition, 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 explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Please see Figure 1 - Figure 4In this embodiment, a preheater feeding pipe for uniformly heated material distribution includes: a pipe structure assembly 1, a main pipe 102 connected and installed at the lower end of the pipe structure assembly 1, a rotating plate 103 connected and installed inside the main pipe 102, a first feeding pipe 104 fixedly installed on the lower left side of the main pipe 102, a second feeding pipe 105 fixedly installed on the lower right side of the main pipe 102, a conveying structure assembly 2 connected and installed at the lower end of the pipe structure assembly 1, and an anti-blocking moving assembly 3 connected and installed inside the conveying structure assembly 2. An installation plate 301 is installed on the upper end of the anti-blocking moving component 3, and a moving rod 303 is connected and installed on the upper left side of the installation plate 301. A connecting plate 304 is connected and installed on the left side of the moving rod 303, and a connecting ring 305 is connected and installed on the left side of the connecting plate 304. A conveying structure component 2 is installed at the lower ends of the first discharge pipe 104 and the second discharge pipe 105 in the pipe structure component 1. An anti-blocking moving component 3 is installed on the inner side of the first conveying pipe 201 and the second conveying pipe 202 in the conveying structure component 2.
[0029] Through the above structure; the pipeline structure component 1 divides the original preheater feed pipe into two, and the material is transported through the first feed pipe 104 and the second feed pipe 105, which facilitates the uniform heating of the material in the subsequent process. The conveying structure component 2 connects the first conveying pipe 201 to the lower end of the second feed pipe 105 and connects the second conveying pipe 202 to the lower end of the first feed pipe 104, which facilitates the subsequent transport of the material. The anti-blocking moving component 3 connects the connecting ring 305 to the upper end of the hose 203, and the moving rod 303 connected to the connecting ring 305 drives the connecting ring 305 to move, which facilitates the subsequent movement of the hose 203.
[0030] Please see Figure 1 - Figure 4 The upper end of the pipe structure component 1 is connected to and installed with an inlet 101, which is connected to and installed at the upper end of the main pipe 102. The rotating plate 103 rotates through an internal rotating rod. The first discharge pipe 104 and the second discharge pipe 105 have the same structure.
[0031] With the above structure: the lower main pipe 102 is connected to the inlet 101, and the material is poured into the inside of the main pipe 102 for conveying through the inlet 101. A first discharge pipe 104 is installed on the left side of the lower end of the main pipe 102, and a second discharge pipe 105 is fixedly installed on the right side. The material is conveyed into the inside of the discharge pipe through the main pipe 102 for separate conveying to facilitate subsequent increase in heating rate. A rotating plate 103 is connected and installed inside the main pipe 102. The rotation of the rotating plate 103 prevents blockage inside the main pipe 102. The first discharge pipe 104 and the second discharge pipe 105 are fixedly installed on the left and right sides of the main pipe 102, respectively. The material is conveyed evenly through the first discharge pipe 104 and the second discharge pipe 105 to facilitate uniform heating of the material in the subsequent process.
[0032] Please see Figure 1 - Figure 4 The upper end of the conveying structure component 2 is connected to and installed with a first conveying pipe 201, and the left side of the first conveying pipe 201 is connected to and installed with a second conveying pipe 202. The lower end of the second conveying pipe 202 is fixedly installed with a hose 203. The first conveying pipe 201 is fixedly installed at the lower end of the second discharge pipe 105, and the second conveying pipe 202 is fixedly installed at the lower end of the first discharge pipe 104. The first conveying pipe 201 and the second conveying pipe 202 have the same structure, and the hose 203 is made of polyimide.
[0033] With the above structure: the material is conveyed into the preheater by installing the first conveying pipe 201, and the first conveying pipe 201 is fixedly installed at the lower end of the second discharge pipe 105, which facilitates the subsequent conveying of the material inside the second discharge pipe 105. The second conveying pipe 202 is fixedly installed at the lower end of the first discharge pipe 104, which facilitates the subsequent conveying of the material inside the first discharge pipe 104. The hose 203 is fixedly installed at the lower end of the second conveying pipe 202, and the hose 203 is made of polyimide. Polyimide is heat resistant up to 400℃ and has high insulation performance, which facilitates the subsequent movement of the hose 203.
[0034] Please see Figure 1 - Figure 4 A movable structure 302 is installed on the upper right side of the anti-blocking movable component 3. The movable structure 302 has the same structure as the upper end of the movable rod 303. The movable structure 302 connects the first conveying pipe 201, and the connecting ring 305 connects the hose 203 at the second conveying pipe 202.
[0035] With the above structure: the lower movable structure 302 is connected by installing the mounting plate 301, and the mounting plate 301 is fixedly installed below the main pipe 102, which facilitates the subsequent fixing of the anti-blocking movable component 3. The movable structure 302 has the same structure as the movable rod 303. The first conveying pipe 201 is connected and moved by the movable structure 302. The movable rod 303 is connected and installed on the left side of the mounting plate 301. The movable rod 303 is connected to the connecting plate 304, which facilitates the subsequent movement of the connecting ring 305. The connecting plate 304 is connected and installed on the left side of the movable rod 303. The movable rod 303 is connected to the connecting ring 305, which facilitates the subsequent movement of the connecting ring 305. The connecting ring 305 connects to the second conveying pipe 202. The movement of the movable rod 303 moves the second conveying pipe 202, preventing subsequent blockage inside the second conveying pipe 202.
[0036] In use, firstly, the original single preheater feed pipe is converted into two feed pipes. A first feed pipe 104 is installed on the lower left side of the main pipe 102, and a second feed pipe 105 is installed on the right side. A pouring inlet 101 is fixedly installed at the upper end of the main pipe 102. The required material is poured into the main pipe 102 through the pouring inlet 101. A rotating plate 103 is connected and installed inside the main pipe 102. The rotating plate 103 rotates to convey the material, preventing subsequent blockage inside the main pipe 102. The material inside the main pipe 102 is evenly conveyed to the first feed pipe 104 and the second feed pipe 105. A second conveying pipe 202 is fixedly installed at the lower end of the first feed pipe 104, and a first conveying pipe 201 is fixedly installed at the lower end of the second feed pipe 105. The material is conveyed to the interior of the preheater through the first conveying pipe 201 and the second conveying pipe 202 for uniform preheating. To prevent blockage inside the conveying pipes, a flexible hose 203 is installed at the lower end of the first conveying pipe 201 and the second conveying pipe 202. The flexible hose 203 is made of polyimide, which is resistant to high temperatures of over 400℃ and has high insulation performance, making it easy to move the flexible hose 203 later. A connecting ring 305 is connected to the outer end of the flexible hose 203. The connecting ring 305 is connected to the connecting plate 304, and the connecting plate 304 is connected to the moving rod 303. The moving rod 303 moves the connecting plate 304, which facilitates the subsequent shaking of the flexible hose 203 inside the connecting ring 305, preventing blockage inside the flexible hose 203.
[0037] 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 preheater feed pipe for uniformly heated fabric distribution, characterized in that, The system includes a pipe structure assembly (1), a main pipe (102) is connected and installed at the lower end of the pipe structure assembly (1), and a rotating plate (103) is connected and installed inside the main pipe (102). A first discharge pipe (104) is fixedly installed on the lower left side of the main pipe (102), and a second discharge pipe (105) is fixedly installed on the lower right side of the main pipe (102). A conveying structure assembly (2) is connected and installed at the lower end of the pipe structure assembly (1). An anti-blocking moving assembly (3) is connected and installed inside the conveying structure assembly (2). An installation plate (301) is installed at the upper end of the anti-blocking moving assembly (3), and a moving rod (303) is connected and installed on the upper left side of the installation plate (301). A connecting plate (304) is connected and installed on the left side of the moving rod (303), and a connecting ring (305) is connected and installed on the left side of the connecting plate (304).
2. The preheater feed pipe for uniformly heated fabric distribution according to claim 1, characterized in that, The upper end of the pipe structure assembly (1) is connected to and installed with an inlet (101).
3. The preheater feed pipe for uniformly heated fabric distribution according to claim 1, characterized in that, The upper end of the conveying structure assembly (2) is connected to and installed with a first conveying pipe (201), and the left side of the first conveying pipe (201) is connected to and installed with a second conveying pipe (202), and the lower end of the second conveying pipe (202) is fixedly installed with a hose (203).
4. The preheater feed pipe for uniformly heated fabric distribution according to claim 1, characterized in that, A movable structure (302) is installed on the upper right side of the anti-blocking movable component (3).
5. The preheater feed pipe for uniformly heated fabric distribution according to claim 1, characterized in that, The lower ends of the first feed pipe (104) and the second feed pipe (105) in the pipeline structure assembly (1) are connected to a conveying structure assembly (2), and the inner sides of the first conveying pipe (201) and the second conveying pipe (202) in the conveying structure assembly (2) are connected to an anti-blocking moving assembly (3).
6. The preheater feed pipe for uniformly heated fabric distribution according to claim 2, characterized in that, The inlet (101) is connected and installed at the upper end of the main pipe (102), the rotating plate (103) is rotated by an internal rotating rod, and the first discharge pipe (104) and the second discharge pipe (105) have the same structure.
7. The preheater feed pipe for uniformly heated fabric distribution according to claim 3, characterized in that, The first conveying pipe (201) is fixedly installed at the lower end of the second feeding pipe (105), and the second conveying pipe (202) is fixedly installed at the lower end of the first feeding pipe (104). The first conveying pipe (201) and the second conveying pipe (202) have the same structure, and the hose (203) is made of polyimide.
8. The preheater feed pipe for uniformly heated fabric distribution according to claim 4, characterized in that, The moving structure (302) has the same structure as the upper end of the moving rod (303). The moving structure (302) connects the first conveying pipe (201), and the connecting ring (305) connects the hose (203) at the second conveying pipe (202).
Citation Information
Patent Citations
Preheater blanking pipe
CN211970923U