C4 raw material preheater

Abstract

The utility model belongs to the technical field of preheaters, and discloses a C4 raw material preheater which comprises a preheater body (1), an annular frame (5) is fixedly installed at the bottom of the preheater body (1), a filter plate (7) is fixedly installed in the annular frame (5), and a limiting cylinder (11) is fixedly installed in the filter plate (7). Through the arrangement of the filter plate, after hot air enters the annular frame through the air inlet head, the filter plate can filter particles carried in the hot air, and when impurities adsorbed at the bottom of the filter plate are removed, the sealing plate is rotated to drive the threaded block to rotate, so that the sealing plate is separated from the bottom of the annular frame; and the driving assembly works to drive the rotating rod to rotate in the limiting cylinder, then the cleaning scraper blade is driven to rotate, the cleaning scraper blade can remove impurities adsorbed at the bottom of the filter plate when rotating, the purpose of removing the impurities filtered on the filter plate is achieved, and the phenomenon that the filter plate is blocked is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of preheaters, and particularly relates to a C4 raw material preheater. Background Art

[0002] The C4 raw material preheater is mainly used to preheat the C4 raw material and increase its temperature for subsequent chemical reactions or processing processes. Factories use C4 raw materials such as butane and isobutane. Before undergoing chemical reactions or being converted into other chemical products, they often need to be preheated to a certain temperature to improve the reaction efficiency, ensure product quality, reduce energy consumption, and ensure the safe and stable operation of production equipment. The preheater can heat the raw material in various ways, such as through hot air, steam or other heat media.

[0003] The existing C4 raw material preheater includes a heat exchange box and spiral heat exchange tubes. A heat exchange cavity is arranged inside the heat exchange box; it also includes an expansion heat exchange tank, an electric heating plate and a connecting pipe. A partition plate is arranged inside the heat exchange cavity, and the partition plate divides the heat exchange cavity into an upper cavity and a lower cavity from top to bottom. The expansion heat exchange tank is arranged in the upper cavity. An air inlet pipe is arranged at the top of the heat exchange box, and the output end of the air inlet pipe passes through the top wall of the heat exchange box from the top of the heat exchange box and extends into the upper part of the expansion heat exchange tank. A pressure reducing valve is arranged on the air inlet pipe, a switch valve is arranged on the connecting pipe, water is contained in the upper cavity, a steam supply pipe communicating with the lower part of the lower cavity is arranged at the left end of the heat exchange box, and a steam return pipe communicating with the upper part of the lower cavity is arranged at the right end of the heat exchange box.

[0004] However, when the existing preheater is in use, it mainly considers improving the preheating effect. While improving the efficiency of the heat medium, it fails to fully consider the filtration and purification of particulate matter carried. When the particulate matter carried by the heat medium contacts the surface of the heat exchange tube during the flow process, these particulate matters will adhere to the heat exchange tube, which may adversely affect the heat exchange efficiency.

[0005] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a C4 raw material preheater is proposed. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is: how to filter impurities in the heat medium.

[0007] To solve the above technical problem, the specific technical solution of the utility model is as follows:

[0008] A C4 raw material preheater, comprising a preheater body, wherein a heat exchange tube is spirally arranged inside the preheater body, an input pipe and an output pipe are symmetrically arranged on the side wall of the preheater body, and the input pipe and the output pipe are respectively connected to both ends of the heat exchange tube; an exhaust head is fixedly installed at the top end of the preheater body, a ring-shaped frame is fixedly installed at the bottom of the preheater body, a filter plate is fixedly installed inside the ring-shaped frame, a limiting cylinder is fixedly installed inside the filter plate, a rotating rod passes through the inside of the limiting cylinder, and cleaning scrapers are symmetrically installed on the rotating rod; a driving component is arranged inside the ring-shaped frame, and the driving component is used to drive the rotating rod to rotate, thereby driving the cleaning scraper to move; a sealing plate is arranged below the ring-shaped frame, and an air inlet head is fixedly installed at the bottom of the sealing plate.

[0009] Furthermore, support legs are fixedly installed at the bottom of the ring-shaped frame, and the support legs are located on one side of the sealing plate.

[0010] Furthermore, a threaded block is fixedly installed on the sealing plate, and the threaded block is threadedly connected to the ring-shaped frame.

[0011] Furthermore, the driving component includes a support frame and a driving motor, the support frame is fixedly connected to the ring-shaped frame, the driving motor is fixedly connected to the support frame, and the output end of the driving motor is fixedly connected to the top end of the rotating rod.

[0012] Furthermore, an annular groove is arranged on the rotating rod.

[0013] Furthermore, an annular convex block is arranged inside the limiting cylinder and is matched with the annular groove on the rotating rod.

[0014] Furthermore, the air inlet head extends into the inside of the ring-shaped frame.

[0015] Furthermore, the preheater body is communicated with the ring-shaped frame.

[0016] Furthermore, the preheater body is of a cylindrical structure.

[0017] Furthermore, the cleaning scraper is used to clean impurities on the surface of the filter plate.

[0018] The utility model has the following advantages: Through the arrangement of the filter plate, after the hot air enters the interior of the annular frame through the air inlet head, the filter plate will filter the particulate matter carried in the hot air, thereby effectively preventing the particulate matter from entering the interior of the preheater body along with the hot air and adsorbing on the heat exchange tubes to affect the heat exchange efficiency. When removing the impurities adsorbed on the bottom of the filter plate, the rotating sealing plate will drive the threaded block to rotate, thereby separating the sealing plate from the bottom of the annular frame. When the driving component works, it will drive the rotating rod to rotate inside the limiting cylinder, and then drive the cleaning scraper to rotate. When the cleaning scraper rotates, it will remove the impurities adsorbed on the bottom of the filter plate, achieving the purpose of removing the filtered impurities on the filter plate and effectively preventing the filter plate from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the C4 raw material preheater of the utility model;

[0020] Figure 2 is a sectional structural schematic diagram of the C4 raw material preheater of the utility model;

[0021] Figure 3 is a three-dimensional structural schematic diagram of the annular frame;

[0022] Figure 4 is a three-dimensional structural schematic diagram of the cleaning scraper;

[0023] Figure 5 is a three-dimensional structural schematic diagram of the sealing plate;

[0024] In the figure: 1. Preheater body; 2. Heat exchange tube; 3. Input pipe; 4. Output pipe; 5. Annular frame; 6. Support leg; 7. Filter plate; 8. Threaded block; 9. Sealing plate; 10. Air inlet head; 11. Limiting cylinder; 12. Rotating rod; 13. Cleaning scraper; 14. Support frame; 15. Driving motor; 16. Exhaust head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to better understand the purpose, structure and function of the utility model, the following further detailed description of the utility model will be made in conjunction with the accompanying drawings.

[0026] As Figures 1 - 5As shown in the figure, the C4 raw material preheater of the present utility model includes a preheater body 1. Inside the preheater body 1, there is a heat exchange tube 2 spirally arranged. On the preheater body 1, an input pipe 3 and an output pipe 4 are symmetrically arranged, and the input pipe 3 and the output pipe 4 are respectively connected to both ends of the heat exchange tube 2. At the top of the preheater body 1, an exhaust head 16 is fixedly installed. At the bottom of the preheater body 1, an annular frame 5 is fixedly installed. Inside the annular frame 5, a filter plate 7 is fixedly installed. Inside the filter plate 7, a limiting cylinder 11 is fixedly installed. A rotating rod 12 passes through the inside of the limiting cylinder 11. On the rotating rod 12, cleaning scrapers 13 are symmetrically installed. Inside the annular frame 5, a driving component is arranged. Below the annular frame 5, a sealing plate 9 is arranged. At the bottom of the sealing plate 9, an air inlet head 10 is fixedly installed. When using the C4 raw material preheater to preheat the raw materials, the pipeline for transporting the preheated raw materials is connected to the input pipe 3. At the same time, the hot gas delivery pipe is connected to the air inlet head 10. After the hot gas enters the inside of the annular frame 5 through the air inlet head 10, the filter plate 7 will filter the particulate matter carried in the hot gas, thus effectively preventing the particulate matter from entering the inside of the preheater body 1 along with the hot gas and adsorbing on the heat exchange tube 2, which affects the heat exchange efficiency. After the hot gas enters the inside of the preheater body 1, when the raw materials enter the inside of the heat exchange tube 2 through the input pipe 3 and flow, the hot gas entering the inside of the preheater body 1 will preheat the C4 raw materials through the heat exchange tube 2. The preheated C4 raw materials flow to the outside through the output pipe 4. The output pipe 4 is connected to the container for storing the preheated raw materials through a pipeline. Then the preheated raw materials will flow into the storage container for collection, achieving the purpose of preheating the raw materials. When clearing the impurities adsorbed on the bottom of the filter plate 7, rotating the sealing plate 9 will drive the threaded block 8 to rotate, and then separate the sealing plate 9 from the bottom of the annular frame 5. Making the driving component work will drive the rotating rod 12 to rotate inside the limiting cylinder 11, and then drive the cleaning scrapers 13 to rotate. When the cleaning scrapers 13 rotate, they will remove the impurities adsorbed on the bottom of the filter plate 7, achieving the purpose of clearing the impurities filtered on the filter plate 7, and effectively preventing the filter plate 7 from being blocked.

[0027] Furthermore, at the bottom of the annular frame 5, a support leg 6 is fixedly installed, and the support leg 6 is located on one side of the sealing plate 9. The support leg 6 is used to support the annular frame 5, and the sealing plate 9 is used to seal the bottom of the annular frame 5.

[0028] Furthermore, on the sealing plate 9, a threaded block 8 is fixedly installed, and the threaded block 8 is threadedly connected to the annular frame 5. Rotating the sealing plate 9 will drive the threaded block 8 to rotate, and then the threaded block 8 can be separated from the annular frame 5 to disassemble the sealing plate 9.

[0029] Further, the driving assembly includes a support frame 14 and a driving motor 15. The support frame 14 is fixedly installed inside the annular frame 5, and the driving motor 15 is fixedly installed inside the support frame 14. The output end of the driving motor 15 is fixedly connected to the top end of the rotating rod 12. The support frame 14 supports the driving motor 15. When the driving motor 15 operates, it drives the rotating rod 12 to rotate inside the limiting cylinder 11, and then drives the cleaning scraper 13 to rotate to remove the adsorbed substances on the filter plate 7.

[0030] Further, the rotating rod 12 is provided with an annular groove that engages with an annular protrusion provided inside the limiting cylinder 11. When the rotating rod 12 rotates, the annular groove and the annular protrusion cooperate to limit the rotating rod 12, enabling the rotating rod 12 to rotate smoothly.

[0031] Further, the air inlet head 10 extends into the annular frame 5. Through the air inlet head 10, hot air can easily enter the inside of the large annular frame 5. After being filtered by the filter plate 7, the hot air will flow into the preheater body 1. The preheater body 1 is connected to the annular frame 5.

[0032] Working principle: When using the C4 raw material preheater to preheat the raw materials, first, the pipeline for transporting the preheated raw materials is connected to the input pipe 3, and at the same time, the hot air delivery pipe is connected to the air inlet head 10. After the hot air enters the inside of the annular frame 5 through the air inlet head 10, the filter plate 7 filters the particulate matter carried in the hot air, effectively preventing the particulate matter from entering the inside of the preheater body 1 along with the hot air and adsorbing on the heat exchange tubes 2, which affects the heat exchange efficiency. After the hot air enters the inside of the preheater body 1, when the raw materials enter the inside of the heat exchange tubes 2 and flow, the hot air that enters the inside of the preheater body 1 passes through the heat exchange tubes 2 to preheat the C4 raw materials. The preheated C4 raw materials flow to the outside through the output pipe 4. The output pipe 4 is connected to a container for storing the preheated raw materials through a pipeline. Then, the preheated raw materials will flow into the storage container for collection, achieving the purpose of preheating the raw materials. When removing the impurities adsorbed on the bottom of the filter plate 7, the rotating sealing plate 9 drives the threaded block 8 to rotate, and then separates the sealing plate 9 from the bottom of the annular frame 5. When the driving assembly operates, it drives the rotating rod 12 to rotate inside the limiting cylinder 11, and then drives the cleaning scraper 13 to rotate. When the cleaning scraper 13 rotates, it removes the impurities adsorbed on the bottom of the filter plate 7, achieving the purpose of removing the filtered impurities on the filter plate 7, and effectively preventing the filter plate 7 from being blocked.

[0033] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, for those skilled in the art, without departing from the principle of the present invention, several modifications and improvements can still be made, and these should also be regarded as belonging to the protection scope of the present invention.

Claims

1. A C4 raw material preheater, characterized in that: The invention comprises a preheater body (1), wherein a heat exchange tube (2) is spirally arranged inside the preheater body (1), an input tube (3) and an output tube (4) are symmetrically arranged on the side wall of the preheater body (1), and the input tube (3) and the output tube (4) are respectively connected to the two ends of the heat exchange tube (2); an exhaust header (16) is fixedly installed on the top of the preheater body (1), an annular frame (5) is fixedly installed on the bottom of the preheater body (1), and a filter plate is fixedly installed inside the annular frame (5) (7), a limiting cylinder (11) is fixedly installed inside the filter plate (7), a rotating rod (12) is passed through the inside of the limiting cylinder (11), a cleaning scraper (13) is symmetrically installed on the rotating rod (12), a driving component is arranged inside the annular frame (5), and the driving component is used to drive the rotating rod (12) to rotate, thereby driving the cleaning scraper (13) to move; a sealing plate (9) is arranged below the annular frame (5), and an air intake head (10) is fixedly installed at the bottom of the sealing plate (9).

2. The C4 raw material preheater according to claim 1, characterized in that: A supporting leg (6) is fixedly mounted on the bottom of the annular frame (5), and the supporting leg (6) is located on one side of the sealing plate (9).

3. The C4 raw material preheater according to claim 1, characterized in that: A threaded block (8) is fixedly mounted on the sealing plate (9), and the threaded block (8) is threadedly connected to the annular frame (5).

4. The C4 raw material preheater according to claim 1, characterized in that: The driving assembly comprises a support frame (14) and a driving motor (15); the support frame (14) is fixedly connected to the annular frame (5); the driving motor (15) is fixedly connected to the support frame (14); and the output end of the driving motor (15) is fixedly connected to the top end of the rotating rod (12).

5. The C4 raw material preheater according to claim 1, characterized in that: The rotating rod (12) is provided with an annular groove.

6. The C4 raw material preheater according to claim 5, characterized in that: An annular protrusion is arranged inside the limiting cylinder (11) and matches with an annular groove on the rotating rod (12).

7. The C4 raw material preheater according to claim 1, characterized in that: The air inlet head (10) extends to the interior of the annular frame (5).

8. The C4 raw material preheater according to claim 1, characterized in that: The preheater body (1) is connected to the annular frame (5).

9. The C4 raw material preheater according to claim 1, characterized in that: The preheater body is a cylindrical structure.

10. The C4 raw material preheater according to claim 1, characterized in that: The cleaning scraper is used to clean impurities on the surface of the filter plate.

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