Sulfuric acid tail gas anti-blocking preheater

Abstract

The utility model relates to the field of preheater, specifically is a kind of sulphuric acid tail gas anti-blocking preheater, including preheater main part, the bottom of preheater main part is fixedly connected with main body pedestal, the input end of preheater main part is interconnected with air inlet pipe, the top of air inlet pipe is fixedly connected with plug-in main block, plug-in main block is slidably connected with mounting plate in its inside, the top of mounting plate is fixedly connected with handle, mounting plate side is provided with pressing plate, filter core plate is arranged between mounting plate and pressing plate, filter core plate is fixedly connected with filter screen in its inside. The utility model discloses by setting filter core plate and filter screen, and then play the role of auxiliary filtration, and make filter core plate can be conveniently disassembled, six-jack bolt is simultaneously set, and then six-jack bolt can be abutted to limit mounting plate, reach the effect of convenient replacement filter core, solve the problem that common preheater is not convenient to replace filter core.

Description

Technical Field

[0001] This utility model relates to the field of preheaters, specifically a sulfuric acid tail gas anti-clogging preheater. Background Technology

[0002] The sulfuric acid tail gas preheater is a heat exchange device used in the sulfuric acid production tail gas treatment system. Its main function is to use the residual heat in the tail gas to preheat the raw material gas entering the reactor in order to improve energy utilization and reaction efficiency. Its operating temperature needs to be controlled above the sulfuric acid dew point to avoid low-temperature corrosion.

[0003] A preheater for preventing inlet blockage, as disclosed in Chinese Patent No. CN222231311U, includes a base plate. A preheater body is fixedly connected to the top of the base plate. A feed pipe is fixedly connected to the left side of the top of the preheater body. A filter pipe is fixedly connected to the top of the feed pipe. A collection assembly is provided at the bottom of the filter pipe. A motor is fixedly connected to the top of the filter pipe. A first rotating rod is fixedly connected to the drive end of the motor. A second rotating rod is connected to the first rotating rod via a gear set. A cleaning plate is fixedly connected to the left end of the second rotating rod. A filter screen is fixedly connected to the inner wall of the left end of the filter pipe. In this invention, by driving the second rotating rod to rotate, the cleaning plate rotates, thereby cleaning the dust on the filter screen. This cleans the filter screen on the preheater, preventing dust from affecting the filtration effect and improving filtration efficiency.

[0004] Existing sulfuric acid tail gas anti-clogging preheaters, although equipped with a filter structure to filter dust, cannot easily disassemble and replace the filter element after excessive use. Therefore, a sulfuric acid tail gas anti-clogging preheater is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a sulfuric acid tail gas anti-blockage preheater.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a sulfuric acid tail gas anti-clogging preheater, including a preheater body, a main body base fixedly connected to the bottom of the preheater body, an air inlet pipe connected to the input end of the preheater body, an insert main block fixedly connected to the top of the air inlet pipe, an installation plate slidably connected inside the insert main block, a handle fixedly connected to the top of the installation plate, a pressing plate provided on one side of the installation plate, a filter element plate provided between the installation plate and the pressing plate, a filter screen fixedly connected inside the filter element plate, a rotating column rotatably connected to the top of the insert main block, an abutment block fixedly connected to one side of the rotating column, and a hexagonal bolt internally threaded into the abutment block.

[0007] Preferably, one side of the mounting plate is provided with a plug-in post, and the pressing plate and the filter plate are respectively provided with mounting holes corresponding to the plug-in post and are slidably connected to the plug-in post.

[0008] Preferably, a motor frame is fixedly connected inside the air intake pipe, a servo motor is mounted on one side of the motor frame, and a central column is fixedly connected to the output end of the servo motor.

[0009] Preferably, a plurality of external rods are fixedly connected to the central column, and a telescopic rod is fixedly connected inside the external rods. A cleaning brush is fixedly connected to one side of the external rods.

[0010] Preferably, a limiting plate is fixedly connected to the top of the telescopic rod, the limiting plate is slidably connected to the external rod, a scraper rod is fixedly connected above the limiting plate, and a spring is sleeved on the telescopic rod.

[0011] Preferably, a scraper column is fixedly connected to the top of the scraper rod, and the scraper column abuts against the inner wall of the air intake pipe.

[0012] Preferably, one end of the air intake pipe is fixedly connected to a flange, and the bottom of the air intake pipe is connected to a waste trough.

[0013] Preferably, the bottom of the waste trough is connected to a waste frame, and a waste drawer is slidably connected inside the waste frame.

[0014] The advantages of this utility model are: This invention utilizes a filter plate and a filter screen to assist in filtration. Rotating the rotating cylinder and tightening or loosening the hexagonal bolts on the abutment block allows for easy disassembly of the filter plate, facilitating filter replacement and solving the common problem of inconvenient filter replacement in preheaters.

[0015] This invention uses a servo motor to drive the cleaning brush to rotate, thereby scraping off dust from the filter plate. The scraper column can also rotate inside the air intake pipe, further scraping off debris adhering to the inner wall of the air intake pipe. This prevents blockage inside the pipe and solves the problem of sulfuric acid tail gas adhering to the inner wall of the pipe, causing blockage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the intake pipe of this utility model; Figure 3 This is a cross-sectional view of the air intake pipe of this utility model; Figure 4 This is an enlarged view of section A of this utility model; Figure 5 This is an enlarged view of section B of this utility model.

[0018] In the diagram: 1. Preheater body; 2. Main body base; 3. Air inlet pipe; 4. Insertion main body block; 5. Flange; 6. Waste trough; 7. Waste frame; 8. Waste drawer; 9. Rotating column; 10. Abutment block; 11. Hex bolt; 12. Mounting plate; 13. Insertion column; 14. Pressing plate; 15. Handle; 16. Filter plate; 17. Filter screen; 18. Motor frame; 19. Servo motor; 20. Central column; 21. External rod; 22. Telescopic rod; 23. Spring; 24. Scraper rod; 25. Scraper column; 26. Cleaning brush. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. This application discloses a sulfuric acid tail gas anti-clogging preheater. For example... Figure 2 and Figure 4As shown, the device includes a preheater body 1, a main body base 2 fixedly connected to the bottom of the preheater body 1, an air inlet pipe 3 connected to the input end of the preheater body 1, a plug-in main block 4 fixedly connected to the top of the air inlet pipe 3, an installation plate 12 slidably connected inside the plug-in main block 4, a handle 15 fixedly connected to the top of the installation plate 12, a pressing plate 14 provided on one side of the installation plate 12, a filter plate 16 provided between the installation plate 12 and the pressing plate 14, a plug-in post 13 provided on one side of the installation plate 12, and mounting holes corresponding to the plug-in post 13 respectively opened on the pressing plate 14 and the filter plate 16 and slidably connected to the plug-in post 13 for installing the filter plate 16; a filter screen 17 fixedly connected inside the filter plate 16, a rotating column 9 rotatably connected to the top of the plug-in main block 4, an abutment block 10 fixedly connected to one side of the rotating column 9, and a hexagonal bolt 11 connected to the internal thread of the abutment block 10. The filter element plate 16 and filter screen 17 are installed on the mounting plate 12 and slidably inserted into the insertion main block 4 to filter the sulfuric acid tail gas entering the air inlet pipe 3. When fixing the mounting plate 12, the rotating column 9 rotates so that the abutment block 10 is at the top of the mounting plate 12. After the hexagonal bolt 11 is rotated, it abuts against the top of the mounting plate 12 for fixation. When it is necessary to remove the mounting plate 12, the abutment block 10 is moved away from the mounting plate 12. The mounting plate 12 is pulled out through the handle 15, and the pressing plate 14 is removed so that the filter element plate 16 and filter screen 17 can be replaced.

[0021] like Figure 3 and Figure 5 As shown, a motor frame 18 is fixedly connected inside the air intake pipe 3, and a servo motor 19 is mounted on one side of the motor frame 18. A central column 20 is fixedly connected to the output end of the servo motor 19. Through the configuration of the servo motor 19, the servo motor 19 can drive the central column 20 to rotate after being started by external power. Preferably, the servo motor 19 is equipped with a protective cover, and the servo motor 19 is located inside the protective cover. For those skilled in the art, installing a protective cover on a motor is a standard practice in the mechanical field and will not be elaborated upon here.

[0022] like Figure 3 and Figure 5 As shown, multiple external rods 21 are fixedly connected to the central column 20. A telescopic rod 22 is fixedly connected inside the external rod 21, and a cleaning brush 26 is fixedly connected to one side of the external rod 21. By setting the external rods 21, the central column 20 rotates, which synchronously drives the external rods 21 to rotate, so that the cleaning brush 26 can clean one side of the filter screen 17.

[0023] like Figure 3 and Figure 5As shown, a limiting plate is fixedly connected to the top of the telescopic rod 22, and the limiting plate is slidably connected to the outer rod 21. A scraper rod 24 is fixedly connected above the limiting plate, and a spring 23 is sleeved on the telescopic rod 22. The spring 23 is located between the bottom of the limiting plate and the outer rod 21. A scraper column 25 is fixedly connected to the top of the scraper rod 24, and the scraper column 25 abuts against the inner wall of the air intake pipe 3. Under the action of the spring 23, the scraper column 25 abuts against the inner wall of the air intake pipe 3. During the rotation of the central column 20, the scraper column 25 can clean the inner wall of the air intake pipe 3.

[0024] like Figure 3 and Figure 5 As shown, one end of the air intake pipe 3 is fixedly connected to a flange 5, and the bottom of the air intake pipe 3 is connected to a waste trough 6. The flange 5 is used to connect the air intake pipe 3. The bottom of the waste trough 6 is connected to a waste frame 7, and a waste drawer 8 is slidably connected inside the waste frame 7. The waste frame 7 allows waste dust to enter the waste drawer 8 along the waste trough 6 for collection.

[0025] Working principle: The filter plate 16 and filter screen 17 are slidably installed in the insertion main block 4 through the mounting plate 12 to filter the sulfuric acid tail gas in the air inlet pipe 3. The rotating column 9 is rotated to make the hexagonal bolts on the abutment block 10 abut against the mounting plate 12 for fixation. When the filter plate 16 and filter screen 17 need to be replaced, the abutment block 10 is moved away from the top of the mounting plate 12, and the mounting plate 12 is taken out with the handle 15 for replacement. The servo motor 19 drives the central column 20 to rotate, causing the external rod 21 to rotate. This allows the cleaning brush 26 on the external rod 21 to clean one side of the filter screen 17. The external rod 21 has a telescopic rod 22 inside, and a spring 23 is fitted on the telescopic rod 22. Under the action of the spring 23, the scraper column 25 above the external rod 21 can abut against the inner wall of the air intake pipe 3. During the rotation of the external rod 21, the inner wall of the air intake pipe 3 is cleaned. The scraped waste and dust on the inner wall of the air intake pipe 3 and the filter screen 17 fall into the waste drawer 8 through the waste trough 6 for collection. The waste drawer 8 is periodically removed for cleaning.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sulfuric acid tail gas anti-clogging preheater, comprising a preheater body (1), characterized in that: The bottom of the preheater body (1) is fixedly connected to a main body base (2). The input end of the preheater body (1) is connected to an air inlet pipe (3). The top of the air inlet pipe (3) is fixedly connected to a plug-in main body block (4). The interior of the plug-in main body block (4) is slidably connected to an installation plate (12). The top of the installation plate (12) is fixedly connected to a handle (15). A pressing plate (14) is provided on one side of the installation plate (12). A filter plate (16) is provided between the installation plate (12) and the pressing plate (14). A filter screen (17) is fixedly connected inside the filter plate (16). A rotating column (9) is rotatably connected to the top of the plug-in main body block (4). A stop block (10) is fixedly connected to one side of the rotating column (9). A hexagonal bolt (11) is threaded into the stop block (10). The mounting plate (12) is provided with a plug-in post (13) on one side. The pressing plate (14) and the filter plate (16) are respectively provided with mounting holes corresponding to the plug-in post (13) and are slidably connected to the plug-in post (13). The air intake pipe (3) is fixedly connected to a motor frame (18), a servo motor (19) is installed on one side of the motor frame (18), and a center column (20) is fixedly connected to the output end of the servo motor (19). Multiple external rods (21) are fixedly connected to the central column (20), and telescopic rods (22) are fixedly connected inside the external rods (21). A cleaning brush (26) is fixedly connected to one side of the external rods (21). The bottom of the air intake pipe (3) is connected to a waste trough (6), the bottom of the waste trough (6) is connected to a waste frame (7), and a waste drawer (8) is slidably connected inside the waste frame (7).

2. The sulfuric acid tail gas anti-clogging preheater according to claim 1, characterized in that: The top of the telescopic rod (22) is fixedly connected to a limiting plate, which is slidably connected to the external rod (21). A scraper rod (24) is fixedly connected above the limiting plate, and a spring (23) is sleeved on the telescopic rod (22).

3. The sulfuric acid tail gas anti-clogging preheater according to claim 2, characterized in that: The top of the scraper rod (24) is fixedly connected to a scraper column (25), which abuts against the inner wall of the air intake pipe (3).

4. The sulfuric acid tail gas anti-clogging preheater according to claim 1, characterized in that: A flange (5) is fixedly connected to one end of the air intake pipe (3).

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