Fluidized bed tail gas treatment equipment for producing heavy soda ash by solid-phase hydration method

Abstract

The utility model discloses fluidized bed tail gas treatment equipment for producing heavy soda ash by a solid-phase hydration method, which comprises a tank body, the upper surface of the tank body is communicated with a gas inlet pipe, the inner wall of the tank body is fixedly connected with three filter screens I, the inner wall of the tank body is fixedly connected with a refrigeration plate, and a plurality of exhaust holes are formed in the tank body; a first support is fixedly connected to the inner wall of the tank body, a first motor is fixedly connected to the inner surface of the first support, a rotating rod is fixedly connected to the output end of the first motor, three scraping plates are fixedly connected to the outer wall of the rotating rod, and the three scraping plates are rotationally connected to the upper surfaces of the three first filter screens correspondingly. According to the dust removal device, particle dust attached to the filter screen can be loosened and separated from the filter screen, then the blown dust is pushed to the periphery, enters the connecting pipe and finally enters the storage box to be stored, the dust is more thoroughly removed from the filter screen, dust residues are avoided, and the cleaning effect of the filter screen is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of tail gas treatment devices, and in particular to a fluidized bed tail gas treatment device for the solid phase hydration process of producing heavy soda ash. Background Technology

[0002] The existing fluidized bed tail gas treatment equipment used for the solid phase hydration process to produce heavy soda ash mainly treats the tail gas generated in the fluidized bed during the solid phase hydration process. The tail gas contains impurities such as dust during the production process. The equipment separates these impurities from the tail gas through a series of purification processes, such as bag filtration and wet washing, so that the tail gas meets environmental emission standards.

[0003] However, existing equipment lacks an automatic cleaning device, requiring manual cleaning of the filter screen regularly. This not only increases the labor intensity and working hours of the staff, but may also affect the filtration effect of the filter screen if the manual cleaning is not timely or thorough. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a fluidized bed tail gas treatment device for the solid-phase hydration process of producing heavy soda ash. The device uses a filter screen to intercept particulate dust in the exhaust gas. After the filter screen is used, a motor drives a fan to back-blow the particulate dust from below the screen upwards, loosening and removing the dust particles. Simultaneously, a motor drives a high-speed rotating arc-shaped scraper, which generates outward centrifugal force, pushing the blown dust outwards and into the connecting pipe, ultimately storing it in a storage tank. This ensures more thorough removal of dust from the filter screen, preventing dust residue and guaranteeing the filter screen's cleanliness.

[0005] This utility model also provides a fluidized bed tail gas treatment device for the solid-phase hydration process of producing heavy soda ash, comprising: a tank, an air inlet pipe connected to the upper surface of the tank, three filter screens fixedly connected to the inner wall of the tank, a cooling plate fixedly connected to the inner wall of the tank, multiple exhaust holes provided on the tank, a support frame fixedly connected to the inner wall of the tank, a motor fixedly connected to the inner surface of the support frame, a rotating rod fixedly connected to the output end of the motor, three scrapers fixedly connected to the outer wall of the rotating rod, the three scrapers being rotatably connected to the upper surfaces of the three filter screens, a second support frame fixedly connected to the inner wall of the tank, a second motor fixedly connected to the inner surface of the second support frame, a fan blade fixedly connected to the output end of the second motor, a connecting pipe connected to the side surface of the tank, a storage box connected to the lower end of the connecting pipe, filter screens fixedly connected to the inner wall of the storage box, and a through hole provided on the storage box.

[0006] According to the present invention, a fluidized bed tail gas treatment device for solid-phase hydration production of heavy soda ash is provided, wherein a refrigeration device is fixedly connected to the side surface of the tank, and the output end of the refrigeration device is connected to a refrigeration plate.

[0007] According to the present invention, a fluidized bed tail gas treatment device for solid-phase hydration production of heavy soda ash is provided, wherein a frame is connected through the side surface of the tank, and a viewing window is fixedly connected to the inner wall of the frame.

[0008] According to the present invention, a fluidized bed tail gas treatment device for solid-phase hydration production of heavy soda ash is provided, wherein a support leg is fixedly connected to the lower surface of the tank, and a reinforcing rod is fixedly connected to the side surface of the support leg.

[0009] According to the present invention, a fluidized bed tail gas treatment device for solid-phase hydration production of heavy soda ash is provided, wherein a mounting plate is fixedly connected to the lower surface of the support leg, and the mounting plate is provided with fixing holes.

[0010] According to the present invention, a fluidized bed tail gas treatment device for solid-phase hydration production of heavy soda ash is provided, wherein the storage tank is provided with a dust removal port, and a sealing plug is movably connected to the inner surface of the dust removal port.

[0011] According to the present invention, a fluidized bed tail gas treatment device for solid-phase hydration production of heavy soda ash is provided, wherein an elastic buckle is fixedly connected to the side surface of the storage tank, and the elastic buckle is movably connected to the sealing plug.

[0012] According to the present invention, a fluidized bed tail gas treatment device for solid phase hydration production of heavy soda ash is provided, wherein a connecting flange is fixedly connected to the outer wall of the air inlet pipe, and a connecting hole is provided on the connecting flange.

[0013] Compared with existing technologies, this fluidized bed tail gas treatment equipment for the solid-phase hydration process of producing heavy soda ash can intercept particulate dust in the exhaust gas through a filter screen. After the filter screen is used, the fan blades driven by motor two can back-blow the particulate dust on the filter screen from below to above, which can loosen the particulate dust attached to the filter screen and remove it. At the same time as back-blowing, motor one can drive the arc-shaped scraper to rotate at high speed. The arc-shaped scraper can generate outward centrifugal force, thereby pushing the blown dust to all sides and into the connecting pipe, and finally into the storage box for storage. This makes the dust more thoroughly removed from the filter screen, avoids dust residue, and ensures the cleaning effect of the filter screen. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1This is the main view of the present invention.

[0016] Figure 2 This is a front sectional view of the present invention.

[0017] Figure 3 This is a top sectional view of the present invention.

[0018] Figure 4 This is a rear view structural diagram of the present invention.

[0019] Legend:

[0020] 1. Connecting hole; 2. Connecting pipe; 3. Storage box; 4. Dust removal port; 5. Elastic buckle; 6. Sealing plug; 7. Reinforcing rod; 8. Connecting flange; 9. Air inlet pipe; 10. Viewing window; 11. Frame; 12. Tank body; 13. Support leg; 14. Fixing hole; 15. Mounting plate; 16. Fan blade; 17. Through hole; 18. Refrigeration plate; 19. Motor II; 20. Scraper; 21. Filter I; 22. Rotating rod; 23. Bracket I; 24. Motor I; 25. Bracket II; 26. Exhaust port; 27. Refrigeration unit; 28. Filter II. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4 This utility model provides a fluidized bed tail gas treatment device for the solid phase hydration process of producing heavy soda ash, comprising: a tank 12, a frame 11 extending through the side surface of the tank 12, a viewing window 10 fixedly connected to the inner wall of the frame 11, a support leg 13 fixedly connected to the lower surface of the tank 12, a reinforcing rod 7 fixedly connected to the side surface of the support leg 13, and a mounting plate 15 fixedly connected to the lower surface of the support leg 13, with fixing holes 14 provided on the mounting plate 15.

[0023] An air inlet pipe 9 is connected to the upper surface of the tank body 12. A connecting flange 8 is fixedly connected to the outer wall of the air inlet pipe 9. A connecting hole 1 is provided on the connecting flange 8. Three filter screens 21 are fixedly connected to the inner wall of the tank body 12. A cooling plate 18 is fixedly connected to the inner wall of the tank body 12 for cooling the exhaust gas. A cooling device 27 is fixedly connected to the side surface of the tank body 12. It is a mature existing cooling device, and its specific structure will not be described in detail in this article. The output end of the cooling device 27 is connected to the cooling plate 18. Multiple exhaust holes 26 are provided on the tank body 12.

[0024] Specifically: Before use, connect the exhaust end of the fluidized bed reactor (the main equipment for solid-phase hydration reaction) to the air inlet pipe 9 of the equipment. Secure it with bolts or other connectors through the connection hole 1. The exhaust gas containing dust and other impurities enters the tank 12 through the air inlet pipe 9. The exhaust gas entering the tank 12 flows from top to bottom and first comes into contact with three filter screens 21. During the flow of the exhaust gas, particulate dust is intercepted by the filter screens 21, achieving initial filtration. A large number of dust particles adhere to the surface of the filter screens 21, purifying the exhaust gas. The exhaust gas filtered by the filter screens 21 continues to flow downward and reaches the position of the cooling plate 18. The cooling device 27 provides a cold source for the cooling plate 18 to cool the exhaust gas. Cooling not only helps to meet environmental emission requirements but also prevents high-temperature exhaust gas from affecting the surrounding environment. The exhaust gas, after being filtered and cooled by the filter screens, is discharged from the equipment through multiple exhaust holes 26 near the bottom of the tank 12. At this point, the exhaust gas has met the environmental emission standards, completing the entire treatment process.

[0025] A bracket 23 is fixedly connected to the inner wall of the tank 12. A motor 24 is fixedly connected to the inner surface of the bracket 23. A rotating rod 22 is fixedly connected to the output end of the motor 24. Three scrapers 20 are fixedly connected to the outer wall of the rotating rod 22. The three scrapers 20 are rotatably connected to the upper surface of three filter screens 21. A bracket 25 is fixedly connected to the inner wall of the tank 12. A motor 19 is fixedly connected to the inner surface of the bracket 25. A fan blade 16 is fixedly connected to the output end of the motor 19. A connecting pipe 2 is connected to the side surface of the tank 12. The lower end of the connecting pipe 2 is connected to a storage box 3.

[0026] Specifically: As usage time increases, a large amount of dust will accumulate on the surface of filter screen 21, affecting the filtration effect. At this time, the cleaning mechanism needs to be activated. Motor 2 19 is turned on, and its output end drives the fan blade 16 to rotate. The fan blade 16 blows upward from below the filter screen 21, loosening the dust particles attached to the filter screen 21 and removing them from the filter. At the same time, motor 1 24 is started, driving the rotating rod 22 to rotate at high speed. The three scrapers 20 on the rotating rod 22 rotate accordingly. The scrapers 20 are rotatably connected to the upper surface of the filter screen 21 and are arc-shaped. During the rotation, they generate outward centrifugal force, pushing the blown dust away to the surroundings and into the connecting pipe 2, and then falling into the storage box 3.

[0027] The inner wall of the storage box 3 is fixedly connected with a filter screen 28. The storage box 3 is provided with a through hole 17 for exhausting the air inside the storage box 3 and leaving only dust particles. The storage box 3 is provided with a dust removal port 4. A sealing plug 6 is movably connected to the inner surface of the dust removal port 4. An elastic buckle 5 is fixedly connected to the side surface of the storage box 3. The elastic buckle 5 is movably connected to the sealing plug 6.

[0028] Specifically: Dust entering the storage box 3 through the connecting pipe 2 is filtered again by the filter screen 28 inside the storage box 3, air is discharged through the through hole 17, and dust particles are trapped inside the storage box 3. When the dust in the storage box 3 accumulates to a certain level, the dust removal port 4 can be opened for cleaning. The sealing plug 6 is used to seal the dust removal port 4, and the elastic buckle 5 serves to fix the sealing plug 6 and prevent it from accidentally falling off.

[0029] Working principle: During use, the exhaust end of the fluidized bed reactor (the main equipment for solid-phase hydration reaction) is connected to the air inlet pipe 9 of the equipment. It is then fixed using bolts or other connectors through the connection hole 1. The exhaust gas containing dust and other impurities enters the tank 12 through the air inlet pipe 9. The exhaust gas flows downwards into the tank 12, first contacting three filter screens 21. During the exhaust gas flow, particulate dust is intercepted by the filter screens 21, achieving initial filtration. A large amount of dust particles adhere to the surface of the filter screens 21, purifying the exhaust gas. The exhaust gas filtered by the filter screens 21 continues downwards, reaching the cooling plate 18. The cooling device 27 provides a cold source to the cooling plate 18, cooling the exhaust gas. Cooling not only helps meet environmental emission requirements but also prevents the high-temperature exhaust gas from affecting the surrounding environment. The exhaust gas, filtered and cooled by the filter screens, is discharged from the equipment through multiple exhaust holes 26 near the bottom of the tank 12. At this point, the exhaust gas has met environmental emission standards, completing the entire treatment process.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A fluidized bed tail gas treatment device for the solid-phase hydration process of producing heavy soda ash, characterized in that, include: The tank (12) has an air inlet pipe (9) connected to its upper surface. Three filter screens (21) are fixedly connected to the inner wall of the tank (12). A cooling plate (18) is fixedly connected to the inner wall of the tank (12). Multiple exhaust holes (26) are provided on the tank (12). A bracket (23) is fixedly connected to the inner wall of the tank (12). A motor (24) is fixedly connected to the inner surface of the bracket (23). A rotating rod (22) is fixedly connected to the output end of the motor (24). Three scrapers (20) are fixedly connected to the outer wall of the rotating rod (22). The three scrapers (20) are rotatably connected to the upper surfaces of the three filter screens (21). The inner wall of the tank (12) is fixedly connected to the support (25). The inner surface of the support (25) is fixedly connected to the motor (19). The output end of the motor (19) is fixedly connected to the fan blade (16). The side surface of the tank (12) is connected to the connecting pipe (2). The lower end of the connecting pipe (2) is connected to the storage box (3). The inner wall of the storage box (3) is fixedly connected to the filter screen (28). The storage box (3) is provided with a through hole (17).

2. The fluidized bed tail gas treatment equipment for producing heavy soda ash by solid phase hydration method according to claim 1, characterized in that, A refrigeration device (27) is fixedly connected to the side surface of the tank (12), and the output end of the refrigeration device (27) is connected to the refrigeration plate (18).

3. The fluidized bed tail gas treatment equipment for producing heavy soda ash by solid phase hydration method according to claim 1, characterized in that, A frame (11) is connected through the side surface of the tank (12), and a viewing window (10) is fixedly connected to the inner wall of the frame (11).

4. The fluidized bed tail gas treatment apparatus for producing heavy soda ash by solid phase hydration method according to claim 1, characterized in that, The lower surface of the tank (12) is fixedly connected to a support leg (13), and the side surface of the support leg (13) is fixedly connected to a reinforcing rod (7).

5. A fluidized bed off-gas treatment apparatus for producing heavy soda ash by solid phase hydration method according to claim 4, characterized in that, The lower surface of the support leg (13) is fixedly connected to a mounting plate (15), and the mounting plate (15) is provided with fixing holes (14).

6. A fluidized bed off-gas treatment apparatus for solid phase hydration process for producing heavy soda ash according to claim 1, characterized in that, The storage box (3) is provided with a dust removal port (4), and a sealing plug (6) is movably connected to the inner surface of the dust removal port (4).

7. A fluidized bed off-gas treatment apparatus for solid phase hydration process for producing heavy soda ash according to claim 6, characterized in that, The side surface of the storage box (3) is fixedly connected with an elastic buckle (5), and the elastic buckle (5) is movably connected to the sealing plug (6).

8. The fluidized bed tail gas treatment apparatus for producing heavy soda ash by solid phase hydration method according to claim 1, characterized in that, The outer wall of the air intake pipe (9) is fixedly connected to a connecting flange (8), and the connecting flange (8) is provided with a connecting hole (1).

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