High-temperature acidic flue gas recovery pressurizing blower

Abstract

The utility model discloses a high-temperature acid flue gas recovery pressurizing blower, which belongs to the technical field of blowers, and comprises a blower body, an input end of the blower body is provided with a mounting pipe, the mounting pipe is internally provided with a filter screen, the filter screen is vertical to the axis of the mounting pipe, and the mounting pipe is also internally provided with a second filter assembly. The second filter assembly is located on the side, close to the air blower body, of the filter screen, a scraper is arranged on one side of the filter screen, the scraper makes contact with the filter screen, the scraper moves up and down, and a driving assembly used for driving the scraper to move up and down is arranged in the mounting pipe and comprises an air baffle, an elastic piece and a connecting rod. The wind shield is rotationally arranged in the mounting pipe, the elastic piece is located between the wind shield and the mounting pipe, the two ends of the elastic piece are fixedly connected with the wind shield and the mounting pipe, the connecting rod is in sliding fit with the wind shield, one end of the connecting rod is fixedly connected with the side face of the scraper, solid particles can be filtered in the radial direction, and the service life of the air blower is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of blower technology, and more specifically, to a high-temperature acidic flue gas recovery and pressurization blower. Background Technology

[0002] A blower mainly consists of the following six parts: motor, air filter, blower body, air chamber, base (also serving as oil tank), and oil drip nozzle. The blower operates by the eccentric rotation of an offset rotor within the cylinder, causing volume changes between the blades in the rotor slots to draw in, compress, and expel air. During operation, the pressure difference of the blower automatically delivers lubricant to the oil drip nozzle, dripping it into the cylinder to reduce friction and noise, while also preventing backflow of gas within the cylinder. This type of blower is also known as a vane blower.

[0003] Existing blowers are suitable for high-temperature, acidic, and alkaline gases by coating the inner surface with high-temperature and corrosion-resistant paint. However, the flue gas contains some large solid particles. When these solid particles enter the blower, the high-speed airflow accelerates them, damaging the inner paint. Consequently, high-temperature, acidic, and alkaline gases can harm the blower during subsequent use. To address these issues, a solution is proposed below. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a high-temperature acidic flue gas recovery and pressurization blower, which can achieve radial filtration of solid particles and extend the service life of the blower.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A high-temperature acidic flue gas recovery and pressurization blower includes a blower body, an installation pipe at the input end of the blower body, a filter screen inside the installation pipe, the filter screen being perpendicular to the axis of the installation pipe, a second filter assembly inside the installation pipe located on the side of the filter screen closer to the blower body, a scraper on one side of the filter screen in contact with the filter screen, the scraper moving up and down, and a drive assembly inside the installation pipe for driving the scraper to move up and down.

[0007] Preferably, the drive assembly includes a wind deflector, an elastic sheet, and a connecting rod. The wind deflector is rotatably arranged inside the mounting tube. The elastic sheet is located between the wind deflector and the mounting tube. Both ends of the elastic sheet are fixedly connected to the wind deflector and the mounting tube, respectively. The connecting rod is located on top of the wind deflector and slides with the wind deflector. One end of the connecting rod is fixedly connected to the side of the scraper.

[0008] Preferably, the second filter assembly includes a housing and a filter bag. The housing is tubular and disposed inside a mounting tube, with the housing and the inner cavity of the mounting tube being adapted to each other. The filter bag is installed inside the housing.

[0009] Preferably, one end of the mounting pipe is fitted with a receiving pipe, the mounting pipe and the receiving pipe are inserted into each other, and the mounting pipe and the receiving pipe are interference-fitted. The other end of the receiving pipe is fixedly connected to the input end of the blower body.

[0010] Preferably, the bottom of the mounting tube is provided with a discharge port, and a collection box for collecting waste is installed at the bottom of the mounting tube, with the opening of the collection box corresponding to the discharge port.

[0011] Preferably, the top of the wind deflector is provided with a guide groove, the connecting rod is slidably arranged inside the guide groove, the side of the connecting rod is provided with a sliding groove, a sliding rod is slidably arranged inside the sliding groove, and the two ends of the sliding rod are respectively fixedly connected to the two sides of the guide groove.

[0012] Preferably, the filter screen is symmetrically provided with a slide, and the two ends of the scraper are respectively slidably engaged with the slide.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] First, this solution filters out larger solid particles in the flue gas through a filter screen. After the flue gas passes through the filter screen, the second filter component performs a secondary filtration to further remove solid particles, thereby reducing the corrosion of the blower body by solid impurities in the flue gas and extending its service life. When the blower stops working, the drive component will automatically reset and drive the scraper to move, cleaning the filter screen through the scraper.

[0015] 2. When the flue gas enters the installation pipe, the flowing flue gas will push the baffle to rotate, which will cause the connecting rod to move downward. The connecting rod will then cause the scraper to move downward, and the scraper will clean the filter screen. At the same time, the rotation of the baffle will compress the elastic plate. When the flue gas stops, the elastic plate will cause the baffle to reset, and the baffle will cause the scraper to reset, which can achieve the scraper to clean the filter screen again.

[0016] Third, the filter bag filters the flue gas that passes through the filter screen. At the same time, the connection between the filter bag and the outer shell allows the filter bag to be easily removed through the outer shell for cleaning, reducing the hassle of cleaning.

[0017] IV. The mounting pipe is used to connect the installation pipe and the blower body. The mounting pipe and the installation pipe are connected by an interference fit. They can be removed when needed to remove the internal second filter component for cleaning.

[0018] 5. The discharge port can easily discharge impurities from the filter screen scraped off by the scraper into the installation pipe. The impurities are collected by the collection box, which also seals the discharge port.

[0019] 6. Because the wind deflector moves in an arc while the scraper moves in a straight line, the cooperation of the guide groove, slide groove and slide rod can prevent jamming between the wind deflector and the connecting rod, ensuring smooth movement.

[0020] 7. The carriage is used to limit the movement of the scraper, allowing it to move along the carriage and ensuring a proper fit between the scraper and the filter screen. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a side view of the installation pipe, receiving pipe, and collection box of this utility model.

[0023] Figure 3 This is a cross-sectional structural diagram of the installation pipe, receiving pipe, and collection box of this utility model;

[0024] Figure 4 This is an enlarged structural schematic diagram of A in this utility model;

[0025] Figure 5 This is an enlarged structural schematic diagram of B of this utility model;

[0026] Figure 6 This is an enlarged structural schematic diagram of C in this utility model;

[0027] Figure 7 This is a schematic diagram of the connection structure between the scraper and the carriage of this utility model.

[0028] Explanation of the labels in the diagram:

[0029] 1. Blower body; 2. Mounting pipe; 3. Filter screen; 4. Second filter assembly; 5. Scraper; 6. Drive assembly; 7. Baffle plate; 8. Elastic sheet; 9. Connecting rod; 10. Housing; 11. Filter bag; 12. Receiving pipe; 13. Discharge port; 14. Collection box; 15. Guide groove; 16. Slide groove; 17. Slide rod; 18. Slide frame. Detailed Implementation

[0030] Example 1:

[0031] Please see Figure 1-7A high-temperature acidic flue gas recovery and pressurization blower includes a blower body 1, an installation pipe 2 at the input end of the blower body 1, a receiving pipe 12 between the installation pipe 2 and the blower body 1, the receiving pipe 12 being funnel-shaped, the small end of the receiving pipe 12 being fixedly connected to the input end of the blower body 1, and the large end of the receiving pipe 12 being interference-fitted with the installation pipe 2, the interference fit between the receiving pipe 12 and the installation pipe 2 allowing the installation pipe 2 to be disassembled, thereby facilitating the cleaning of the inside of the installation pipe 2.

[0032] The outer ring of the mounting pipe 2 is annular, and the inner cavity of the mounting pipe 2 is rectangular. A filter screen 3 is installed inside the mounting pipe 2. The filter screen 3 is made of stainless steel to ensure its strength and extend its service life. The filter screen 3 is perpendicular to the axis of the mounting pipe 2. A second filter assembly 4 is also installed inside the mounting pipe 2. The second filter assembly 4 is located on the side of the filter screen 3 near the blower body 1. The second filter assembly 4 includes a housing 10 and a filter bag 11. The housing 10 is tubular and is arranged inside the mounting pipe 2. The housing 10 and the inner cavity of the mounting pipe 2 are adapted to each other. The filter bag 11 is installed inside the housing 10. The filter screen 3 performs preliminary filtration of the flue gas, removing larger impurities in the flue gas. The filter bag 11 filters dust in the flue gas. The filter bag 11 is installed through the housing 10 and the mounting pipe 2, so the filter bag 11 can be disassembled through the housing 10 for easy cleaning and to ensure ventilation efficiency.

[0033] A scraper 5 is provided on one side of the filter screen 3, and the scraper 5 and the filter screen 3 are in contact with each other. A slide 18 is symmetrically provided on the side of the filter screen 3. The two ends of the scraper 5 are respectively slidably engaged with the slide 18, and the scraper 5 moves up and down. A drive assembly 6 for driving the scraper 5 to move up and down is provided inside the mounting tube 2. The drive assembly 6 includes a baffle 7, an elastic plate 8 and a connecting rod 9. The baffle 7 is rotatably arranged inside the mounting tube 2. The elastic plate 8 is located between the baffle 7 and the mounting tube 2, and the two ends of the elastic plate 8 are respectively engaged with the baffle 7. The plate 7 and the mounting pipe 2 are fixedly connected. The top of the baffle plate 7 is provided with a guide groove 15. The connecting rod 9 is slidably arranged inside the guide groove 15. The side of the connecting rod 9 is provided with a sliding groove 16. A sliding rod 17 is slidably arranged inside the sliding groove 16. The two ends of the sliding rod 17 are fixedly connected to the two sides of the guide groove 15 respectively. Since the baffle plate 7 moves in an arc and the scraper 5 moves in a straight line, the cooperation of the guide groove 15, the sliding groove 16 and the sliding rod 17 can prevent the baffle plate 7 and the connecting rod 9 from jamming, ensuring smooth movement.

[0034] The flowing flue gas pushes the baffle plate 7 to rotate, which in turn moves the connecting rod 9 downwards. The connecting rod 9 then moves the scraper 5 downwards, cleaning the filter screen 3. Simultaneously, the rotation of the baffle plate 7 compresses the elastic plate 8. When the flue gas stops, the elastic plate 8 resets the baffle plate 7, which in turn resets the scraper 5. This allows the scraper 5 to clean the filter screen 3 again, ensuring the filter screen 3 maintains good filtration performance and extending its service life. Compared to traditional cleaning methods, this reduces filter screen clogging, and the cleaning can be performed without stopping equipment operation, improving continuous operating efficiency. Throughout the process, the reliable reset of the elastic plate 8 ensures the stability of the cleaning system, guaranteeing the consistency and effectiveness of each cleaning operation.

[0035] The bottom of the mounting pipe 2 is provided with a discharge port 13. When the baffle plate 7 is horizontal, the baffle plate 7 can block the discharge port 13, which can prevent the impurities inside the collection box 14 from being blown up again by the flue gas through the discharge port 13. The bottom of the mounting pipe 2 is equipped with a collection box 14 for collecting waste. The opening of the collection box 14 corresponds to the discharge port 13. The bottom of the mounting pipe 2 is provided with a fixing frame. The collection box 14 and the fixing frame are inserted together. The fixing frame fixes the collection box 14. At the same time, the fixing frame can separate the collection box 14 from the mounting pipe 2, so that the impurities inside the collection box 14 can be poured out.

[0036] Working principle:

[0037] Connect the installation pipe 2 to the external flue gas equipment. The blower body 1 draws external flue gas into the installation pipe 2. The flue gas first passes through the baffle 7, and the pressure of the flue gas pushes the baffle to rotate. The baffle moves the connecting rod 9 downwards, which in turn moves the scraper 5 downwards. The scraper 5 cleans the filter screen 3. Simultaneously, the baffle changes from a state of blocking the inside of the installation pipe 2 to a horizontal state. On one hand, the baffle opens the inner cavity of the installation pipe 2, and on the other hand, it blocks the discharge port 13. When the flue gas passes through the filter screen 3, the filter screen 3 cleans the flue gas. The initial filtration is used to filter out larger solid impurities in the flue gas, preventing these impurities from impacting the inner cavity of the blower body 1 under the influence of the flue gas, thus avoiding damage to the inner cavity and extending the service life of the blower body 1. The flue gas passing through the filter screen 3 will come into contact with the filter bag 11. The pore size of the filter bag 11 is smaller than that of the filter screen 3. The dust in the flue gas is filtered through the filter screen 3, achieving secondary filtration. After being filtered by the filter screen 3 and the filter bag 11, the flue gas will be discharged through the blower body 1, realizing the recovery and pressurization of the flue gas.

[0038] When the blower body 1 stops working, the baffle plate 7 resets under the action of the elastic plate 8, that is, the baffle plate 7 rotates and resets, and at the same time, the baffle plate 7 removes its obstruction of the discharge port 13. The baffle plate 7 drives the connecting rod 9 to reset, and the connecting rod 9 drives the scraper 5. Since the scraper 5 is limited by the slide 18, the scraper 5 can only move upward along the slide 18. The moving scraper 5 cleans the surface of the filter screen 3 and scrapes off the impurities adhering to the filter screen 3. The impurities fall under the action of gravity and finally fall into the collection box 14 through the discharge port 13. The collection box 14 collects the impurities in a centralized manner. The treatment effectively prevents impurities from re-adhering to the filter screen 3 during the next blower operation. The detachable design of the collection box 14 facilitates the emptying of impurities inside. By overcoming the friction between the installation pipe 2 and the receiving pipe 12 with external force, the installation pipe 2 and the receiving pipe 12 are separated, allowing the second filter assembly 4 inside the installation pipe 2 to be exposed. This facilitates the removal and cleaning of the second filter assembly 4, enabling centralized treatment of impurities inside the filter bag 11. This ensures the air permeability of the inner filter bag 11, maintains the suction power of the blower body 1, and prevents damage to the blower body 1.

Claims

1. A high-temperature acidic flue gas recovery and pressurization blower, characterized in that: The device includes a blower body (1), an installation pipe (2) at the input end of the blower body (1), a filter screen (3) inside the installation pipe (2), the filter screen (3) and the axis of the installation pipe (2) being perpendicular, a second filter assembly (4) inside the installation pipe (2), the second filter assembly (4) being located on the side of the filter screen (3) close to the blower body (1), a scraper (5) on one side of the filter screen (3), the scraper (5) and the filter screen (3) being in contact with each other, the scraper (5) moving up and down, and a drive assembly (6) inside the installation pipe (2) for driving the scraper (5) to move up and down.

2. The high-temperature acidic flue gas recovery and pressurization blower according to claim 1, characterized in that: The drive assembly (6) includes a wind deflector (7), an elastic sheet (8), and a connecting rod (9). The wind deflector (7) is rotatably arranged inside the mounting tube (2). The elastic sheet (8) is located between the wind deflector (7) and the mounting tube (2). Both ends of the elastic sheet (8) are fixedly connected to the wind deflector (7) and the mounting tube (2), respectively. The connecting rod (9) is located at the top of the wind deflector (7), and the connecting rod (9) and the wind deflector (7) are slidably engaged. One end of the connecting rod (9) is fixedly connected to the side of the scraper (5).

3. The high-temperature acidic flue gas recovery and pressurization blower according to claim 1, characterized in that: The second filter assembly (4) includes a housing (10) and a filter bag (11). The housing (10) is tubular and is arranged inside the mounting tube (2). The housing (10) and the inner cavity of the mounting tube (2) are adapted to each other. The filter bag (11) is installed inside the housing (10).

4. A high-temperature acidic flue gas recovery and pressurization blower according to claim 1, characterized in that: One end of the mounting pipe (2) is fitted with a receiving pipe (12), and one end of the mounting pipe (2) is inserted into the receiving pipe (12). The mounting pipe (2) and the receiving pipe (12) are press-fitted together. The other end of the receiving pipe (12) is fixedly connected to the input end of the blower body (1).

5. A high-temperature acidic flue gas recovery and pressurization blower according to claim 1, characterized in that: The bottom of the installation tube (2) is provided with a discharge port (13), and a collection box (14) for collecting waste is installed at the bottom of the installation tube (2). The opening of the collection box (14) corresponds to the discharge port (13).

6. A high-temperature acidic flue gas recovery and pressurization blower according to claim 2, characterized in that: The top of the wind deflector (7) is provided with a guide groove (15), the connecting rod (9) is slidably arranged inside the guide groove (15), the side of the connecting rod (9) is provided with a sliding groove (16), a sliding rod (17) is slidably arranged inside the sliding groove (16), and the two ends of the sliding rod (17) are respectively fixedly connected to the two sides of the guide groove (15).

7. A high-temperature acidic flue gas recovery and pressurization blower according to claim 1, characterized in that: The filter screen (3) is symmetrically provided with a slide (18) on its side, and the two ends of the scraper (5) are respectively slidably engaged with the slide (18).

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