Dedusting device for desulfurizing tower

Abstract

The dust removal device comprises a tower body, the outer surface of the tower body is fixedly connected with a smoke inlet pipe, the top of the smoke inlet pipe is provided with a smoke exhaust pipe, the bottom of the smoke exhaust pipe is provided with a material collecting box, the outer surface of the material collecting box is fixedly connected with the inner surface of the tower body, and the outer surface of the material collecting box is fixedly connected with the inner surface of the tower body. The inner surface of the tower body is rotatably connected with a rotating shaft, and the outer surface of the rotating shaft is fixedly connected with spiral fan blades. According to the device, the filter plate is cleaned through the scraping plate, desulfurized flue gas moves upwards and enters exhausted flue gas after being filtered by the filter plate, impurities and a desulfurizing agent carried in the flue gas are adsorbed on the surface of the filter plate, and meanwhile, the rotating shaft drives the scraping plate to rotate, so that the impurities attached to the surface of the filter plate are scraped off, and the filter plate is cleaned; and at the moment, impurities on the surface of the scraper roll into the material guide plate along the inner surface of the scraper and finally enter the material collection box through the through holes to be collected.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal, in particular to a dust removal device for a desulfurization tower. Background Art

[0002] The desulfurization tower is a tower-type equipment for desulfurization of industrial waste gas, which is usually composed of a tower body, an absorbent slurry circulation system, a demister, etc. The tower body has a multi-layer structure, including a gas inlet, a gas distributor, a spray layer, a packing layer, a demister, etc. The gas inlet is connected to the absorbent slurry circulation system to distribute the gas and mix it with the absorbent slurry.

[0003] In the prior art, when a desulfurization tower is used, the flue gas contacts the filter plate after desulfurization, and the impurities contained in the flue gas and the desulfurizer are adsorbed on the surface of the filter plate. After a long period of use, more and more impurities are attached to the surface of the filter plate, which eventually leads to a deterioration in the filtering effect of the filter plate. At this time, the filter plate needs to be cleaned or replaced manually, which is a cumbersome, time-consuming and labor-intensive process. Utility Model Content

[0004] The smoke exhaust pipe is an air filter according to claim 1, wherein the smoke exhaust pipe has a top and a bottom. The smoke exhaust pipe has a bottom and a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom. The smoke exhaust pipe has a bottom.

[0005] Preferably, the bottom end of the smoke exhaust pipe is fixedly connected to the upper surface of the tower body, the outer surface of the tower body is fixedly connected to the outer surface of the infusion pipe, the inner surface of the infusion pipe is in contact with the outer surface of the spiral blade, and a leakage plate is provided on the top of the spiral blade. The desulfurizer sprayed from the nozzle falls onto the surface of the leakage plate after desulfurizing the flue gas, and flows back into the bottom of the tower body after being filtered by the leakage plate.

[0006] Preferably, the outer surface of the leakage plate is fixedly connected to the inner surface of the tower body, the inner surface of the tower body is fixedly connected to the outer surface of the filter plate, the inner surface of the infusion tube is rotatably connected to the outer surface of the rotating shaft, the outer surface of the rotating shaft is rotatably connected to the inner surface of the leakage plate, the desulfurized flue gas moves upward, enters the exhaust gas after filtering by the filter plate, and the impurities entrained in the flue gas and the desulfurizer are adsorbed on the surface of the filter plate.

[0007] Preferably, the inner surface of the tower body is fixedly connected to the outer surface of the filter plate, the inner surface of the filter plate is rotatably connected to the outer surface of the rotating shaft, the outer surface of the rotating shaft is fixedly connected with a scraper, the upper surface of the scraper is in contact with the lower surface of the filter plate, and a through hole is opened on the inner surface of the tower body. The rotating shaft drives the scraper to rotate, scrapes off impurities attached to the surface of the filter plate, and cleans the filter plate.

[0008] Preferably, the outer surface of the liquid storage box is fixedly connected to the inner surface of the tower body, the inner surface of the tower body is fixedly connected to the outer surface of the guide plate, the lower surface of the annular rotating plate is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected to the outer surface of the rotating shaft, and the impurities on the scraper surface roll along the inner surface of the scraper into the guide plate, and finally enter the collection box through the through hole to complete the collection.

[0009] Preferably, the inner surface of the smoke exhaust pipe is fixedly connected to a ring-shaped fixing plate, the upper surface of the ring-shaped fixing plate is fixedly connected to a plunger, the outer surface of the plunger is slidably connected to a porous baffle, the lower surface of the porous baffle is fixedly connected to a tension spring, the smoke can push the porous baffle upward through the ring-shaped fixing plate, the porous baffle slides along the surface of the limiting column, and disengages from the surface of the plunger.

[0010] Preferably, the bottom end of the tension spring is fixedly connected to the upper surface of the annular fixing plate, the upper surface of the annular fixing plate is fixedly connected to a limiting column, the outer surface of the limiting column is slidably connected to the inner surface of the porous baffle plate, the outer surface of the porous baffle plate is slidably connected to the inner surface of the smoke exhaust pipe, when the air pressure inside the tower body is insufficient, the tension spring drives the porous baffle to reset, and at this time the smoke cannot be discharged through the smoke exhaust pipe.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. The utility model drives the nozzle to rotate by arranging an annular rotating plate, and the flue gas enters the tower body from the smoke inlet pipe. The rotating shaft drives the spiral fan blades to rotate, and the desulfurizer at the bottom of the tower body is transported to the liquid storage box through the infusion pipe. The desulfurizer in the liquid storage box passes through the annular rotating plate and is sprayed out from the nozzle to desulfurize the flue gas in the tower body. At the same time, the rotating shaft drives the annular rotating plate to rotate through the connecting rod, so that the nozzle rotates and sprays the desulfurizer, thereby increasing the sweeping area of ​​the desulfurizer sprayed by a single nozzle, solving the problem that the flue gas and the desulfurizer are not completely in contact due to the blockage of some nozzles in the dust removal device for the traditional desulfurization tower, which ultimately leads to poor desulfurization effect.

[0013] 2. The utility model cleans the filter plate by a scraper. The flue gas after desulfurization moves upward and enters the exhaust gas after filtering by the filter plate. The impurities contained in the flue gas and the desulfurizer are adsorbed on the surface of the filter plate. At the same time, the rotating shaft drives the scraper to rotate, and the impurities attached to the surface of the filter plate are scraped off to clean the filter plate. At this time, the impurities on the scraper surface roll along the inner surface of the scraper to the guide plate, and finally enter the collection box through the through hole to complete the collection, thereby solving the problem that the dust removal device of the traditional desulfurization tower cannot clean the filter plate.

[0014] 3. The utility model filters and recovers the desulfurizer by setting a leakage plate. The desulfurizer sprayed from the nozzle falls onto the surface of the leakage plate after desulfurizing the flue gas, and flows back into the bottom of the tower body after being filtered by the leakage plate. At this time, the spiral fan blades rotate to transport the desulfurizer returned to the bottom of the tower body to the liquid storage box through the infusion pipe, thereby recovering and reusing the desulfurizer, which solves the problem that the dust removal device used in the traditional desulfurization tower cannot realize the recovery and utilization of the desulfurizer.

[0015] 4. The utility model blocks the flue gas after desulfurization by arranging a porous baffle. As the flue gas continues to enter, the pressure inside the tower body increases. At this time, the flue gas pushes the porous baffle to move upward through the annular fixed plate. At this time, the flue gas can be discharged from the exhaust pipe through the holes opened on the surface of the porous baffle. When the air pressure inside the tower body is insufficient, the tension spring drives the porous baffle to reset. At this time, the flue gas cannot be discharged through the exhaust pipe, thereby increasing the residence time of the flue gas in the tower body, making the reaction of the flue gas and the desulfurizer more complete, and solving the problem of insufficient reaction between the flue gas and the desulfurizer in the dust removal device for the traditional desulfurization tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the utility model at A;

[0019] Figure 4 It is a structural schematic diagram of B of the utility model.

[0020] In the figure: 1. tower body; 2. smoke inlet pipe; 3. collecting box; 4. smoke exhaust pipe; 5. filter plate; 6. rotating shaft; 7. infusion tube; 8. spiral fan blade; 9. leakage plate; 10. guide plate; 11. scraper; 12. through hole; 13. liquid storage box; 14. annular rotating plate; 15. nozzle; 16. connecting rod; 17. annular fixing plate; 18. plunger; 19. limit column; 20. porous baffle; 21. tension spring. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0022] Example: See Figure 1 - Figure 4The utility model provides a technical solution: a dust removal device for a desulfurization tower, comprising a tower body 1, a smoke inlet pipe 2 is fixedly connected to the outer surface of the tower body 1, a smoke exhaust pipe 4 is arranged on the top of the smoke inlet pipe 2, a material collection box 3 is arranged at the bottom of the smoke exhaust pipe 4, the outer surface of the material collection box 3 is fixedly connected to the inner surface of the tower body 1, a rotating shaft 6 is rotatably connected to the inner surface of the tower body 1, a spiral blade 8 is fixedly connected to the outer surface of the rotating shaft 6, a liquid storage box 13 is arranged on the top of the spiral blade 8, an annular rotating plate 14 is rotatably connected to the inner surface of the liquid storage box 13, a nozzle 15 is fixedly connected to the lower surface of the annular rotating plate 14, a filter plate 5 is arranged on the top of the nozzle 15, a liquid infusion pipe 7 is arranged on the bottom of the filter plate 5, the bottom end of the smoke exhaust pipe 4 is fixedly connected to the upper surface of the tower body 1, the outer surface of the tower body 1 is fixedly connected to the outer surface of the liquid infusion pipe 7, and the inner surface of the liquid infusion pipe 7 contacts the outer surface of the spiral blade 8, A liquid leakage plate 9 is provided on the top of the spiral blade 8, the outer surface of the liquid leakage plate 9 is fixedly connected to the inner surface of the tower body 1, the inner surface of the tower body 1 is fixedly connected to the outer surface of the filter plate 5, the inner surface of the liquid infusion pipe 7 is rotatably connected to the outer surface of the rotating shaft 6, the outer surface of the rotating shaft 6 is rotatably connected to the inner surface of the liquid leakage plate 9, the flue gas enters the tower body 1 from the smoke inlet pipe 2, the rotating shaft 6 drives the spiral blade 8 to rotate, and the desulfurizer at the bottom of the tower body 1 is transported to the liquid storage box 13 through the liquid infusion pipe 7, the desulfurizer in the liquid storage box 13 passes through the annular rotating plate 14 and is sprayed from the nozzle 15 to desulfurize the flue gas in the tower body 1, at the same time, the rotating shaft 6 drives the annular rotating plate 14 to rotate through the connecting rod 16, so that the nozzle 15 rotates and sprays the desulfurizer, the desulfurizer sprayed by the nozzle 15 falls to the surface of the liquid leakage plate 9 after desulfurizing the flue gas, and flows back into the bottom of the tower body 1 after passing through the filtering action of the liquid leakage plate 9.

[0023] The inner surface of the tower body 1 is fixedly connected to the outer surface of the filter plate 5, the inner surface of the filter plate 5 is rotatably connected to the outer surface of the rotating shaft 6, the outer surface of the rotating shaft 6 is fixedly connected to a scraper 11, the upper surface of the scraper 11 is in contact with the lower surface of the filter plate 5, the inner surface of the tower body 1 is provided with a through hole 12, the outer surface of the liquid storage box 13 is fixedly connected to the inner surface of the tower body 1, the inner surface of the tower body 1 is fixedly connected to the outer surface of the guide plate 10, the lower surface of the annular rotating plate 14 is fixedly connected to a connecting rod 16, and the connecting rod 16 is fixedly connected to the inner surface of the tower body 1. The bottom end of the rod 16 is fixedly connected to the outer surface of the rotating shaft 6. The flue gas after desulfurization moves upward and enters the exhaust gas 4 after filtering through the filter plate 5. The impurities contained in the flue gas and the desulfurizer are adsorbed on the surface of the filter plate 5. At the same time, the rotating shaft 6 drives the scraper 11 to rotate, scrapes off the impurities attached to the surface of the filter plate 5, and cleans the filter plate 5. At this time, the impurities on the surface of the scraper 11 roll along the inner surface of the scraper 11 to the guide plate 10, and finally enter the collection box 3 through the through hole 12 to complete the collection.

[0024] The inner surface of the smoke exhaust pipe 4 is fixedly connected with an annular fixing plate 17, and the upper surface of the annular fixing plate 17 is fixedly connected with a plunger 18. The outer surface of the plunger 18 is slidably connected with a porous baffle 20, and the lower surface of the porous baffle 20 is fixedly connected with a tension spring 21. The bottom end of the tension spring 21 is fixedly connected to the upper surface of the annular fixing plate 17, and the upper surface of the annular fixing plate 17 is fixedly connected with a limiting column 19. The outer surface of the limiting column 19 is slidably connected to the inner surface of the porous baffle 20, and the outer surface of the porous baffle 20 is slidably connected to the inner surface of the smoke exhaust pipe 4. As the smoke continues to enter, the pressure inside the tower body 1 increases. At this time, the smoke pushes the porous baffle 20 upward through the annular fixing plate 17, and the porous baffle 20 slides along the surface of the limiting column 19 and separates from the surface of the plunger 18. At this time, the tension spring 21 is stretched by force, and the smoke is discharged from the smoke exhaust pipe 4 through the holes opened on the surface of the porous baffle 20.

[0025] Working principle:

[0026] When in use, the flue gas enters the tower body 1 from the smoke inlet pipe 2, and the rotating shaft 6 drives the spiral blades 8 to rotate, and the desulfurizer at the bottom of the tower body 1 is transported to the liquid storage box 13 through the liquid infusion pipe 7. The desulfurizer in the liquid storage box 13 passes through the annular rotating plate 14 and is sprayed out from the nozzle 15 to desulfurize the flue gas in the tower body 1. At the same time, the rotating shaft 6 drives the annular rotating plate 14 to rotate through the connecting rod 16, so that the nozzle 15 rotates and sprays the desulfurizer, thereby increasing the sweeping area of ​​the desulfurizer sprayed by a single nozzle 15, effectively preventing the problem that the flue gas and the desulfurizer are not completely contacted due to the blockage of some nozzles 15, and finally causing the desulfurization effect to deteriorate.

[0027] The desulfurized flue gas moves upward and enters the exhaust gas 4 after being filtered by the filter plate 5. The impurities and desulfurizer contained in the flue gas are adsorbed on the surface of the filter plate 5. At the same time, the rotating shaft 6 drives the scraper 11 to rotate, scraping off the impurities attached to the surface of the filter plate 5, and cleaning the filter plate 5. At this time, the impurities on the surface of the scraper 11 roll down along the inner surface of the scraper 11 into the guide plate 10, and finally enter the collection box 3 through the through hole 12 to complete the collection.

[0028] The desulfurizer sprayed by the nozzle 15 falls onto the surface of the liquid leakage plate 9 after desulfurizing the flue gas, and flows back into the bottom of the tower body 1 after being filtered by the liquid leakage plate 9. At this time, the spiral blades 8 rotate to transport the desulfurizer returned to the bottom of the tower body 1 to the liquid storage box 13 through the liquid delivery pipe 7, thereby recycling the desulfurizer.

[0029] As the flue gas continues to enter, the pressure inside the tower body 1 increases. At this time, the flue gas pushes the porous baffle 20 upward through the annular fixing plate 17. The porous baffle 20 slides along the surface of the limiting column 19 and separates from the surface of the plunger 18. At this time, the tension spring 21 is stretched, and the flue gas is discharged from the exhaust pipe 4 through the holes opened on the surface of the porous baffle 20. When the air pressure inside the tower body 1 is insufficient, the tension spring 21 drives the porous baffle 20 to reset. At this time, the flue gas cannot be discharged through the exhaust pipe, thereby increasing the residence time of the flue gas in the tower body 1 and making the reaction between the flue gas and the desulfurizer more complete.

[0030] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A dust removal device for a desulfurization tower, comprising a tower body (1), characterized in that: The outer surface of the tower body (1) is fixedly connected to a smoke inlet pipe (2), a smoke exhaust pipe (4) is arranged on the top of the smoke inlet pipe (2), a material collection box (3) is arranged on the bottom of the smoke exhaust pipe (4), the outer surface of the material collection box (3) is fixedly connected to the inner surface of the tower body (1), the inner surface of the tower body (1) is rotatably connected to a rotating shaft (6), the outer surface of the rotating shaft (6) is fixedly connected to a spiral blade (8), the top of the spiral blade (8) is provided with a liquid storage box (13), the inner surface of the liquid storage box (13) is rotatably connected to an annular rotating plate (14), the lower surface of the annular rotating plate (14) is fixedly connected to a nozzle (15), the top of the nozzle (15) is provided with a filter plate (5), and the bottom of the filter plate (5) is provided with a liquid infusion tube (7).

2. A dust removal device for a desulfurization tower according to claim 1, characterized in that: The bottom end of the smoke exhaust pipe (4) is fixedly connected to the upper surface of the tower body (1), the outer surface of the tower body (1) is fixedly connected to the outer surface of the liquid infusion pipe (7), the inner surface of the liquid infusion pipe (7) is in contact with the outer surface of the spiral blade (8), and a liquid leakage plate (9) is provided on the top of the spiral blade (8).

3. A dust removal device for a desulfurization tower according to claim 2, characterized in that: The outer surface of the liquid leakage plate (9) is fixedly connected to the inner surface of the tower body (1), the inner surface of the tower body (1) is fixedly connected to the outer surface of the filter plate (5), the inner surface of the liquid infusion tube (7) is rotatably connected to the outer surface of the rotating shaft (6), and the outer surface of the rotating shaft (6) is rotatably connected to the inner surface of the liquid leakage plate (9).

4. A dust removal device for a desulfurization tower according to claim 1, characterized in that: The inner surface of the tower body (1) is fixedly connected to the outer surface of the filter plate (5), the inner surface of the filter plate (5) is rotatably connected to the outer surface of the rotating shaft (6), the outer surface of the rotating shaft (6) is fixedly connected to a scraper (11), the upper surface of the scraper (11) is in contact with the lower surface of the filter plate (5), and the inner surface of the tower body (1) is provided with a through hole (12).

5. A dust removal device for a desulfurization tower according to claim 1, characterized in that: The outer surface of the liquid storage box (13) is fixedly connected to the inner surface of the tower body (1), the inner surface of the tower body (1) is fixedly connected to the outer surface of the material guide plate (10), the lower surface of the annular rotating plate (14) is fixedly connected to a connecting rod (16), and the bottom end of the connecting rod (16) is fixedly connected to the outer surface of the rotating shaft (6).

6. A dust removal device for a desulfurization tower according to claim 1, characterized in that: The inner surface of the smoke exhaust pipe (4) is fixedly connected to an annular fixing plate (17), the upper surface of the annular fixing plate (17) is fixedly connected to a plunger (18), the outer surface of the plunger (18) is slidably connected to a porous baffle (20), and the lower surface of the porous baffle (20) is fixedly connected to a tension spring (21).

7. A dust removal device for a desulfurization tower according to claim 6, characterized in that: The bottom end of the tension spring (21) is fixedly connected to the upper surface of the annular fixing plate (17), the upper surface of the annular fixing plate (17) is fixedly connected to a limiting column (19), the outer surface of the limiting column (19) is slidably connected to the inner surface of the porous baffle (20), and the outer surface of the porous baffle (20) is slidably connected to the inner surface of the smoke exhaust pipe (4).

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