Boiler flue gas treatment device

Abstract

The utility model discloses a boiler flue gas treatment device in the technical field of flue gas treatment, which comprises a flue gas treatment box, one end of the flue gas treatment box is communicated with a flue gas inlet pipe, the other end of the flue gas treatment box is communicated with a flue gas outlet pipe, and a dust blocking component is mounted in an inner cavity of the flue gas treatment box. The bottom of the flue gas treatment box communicates with a collecting hopper located under the dust blocking assembly, and the bottom end of the collecting hopper is detachably connected with a plugging cover. The boiler flue gas treatment device solves the problems that an existing boiler flue gas treatment device is poor in flue gas filtering and purifying effect, harmful substances in flue gas are directly discharged into air, serious pollution is caused to the environment, and the dust blocking assembly is used for cleaning the surface of the dust blocking assembly. The problems that in the prior art, the actual smoke filtering effect is affected, and use by people is not facilitated due to the fact that large-particle matter contained in smoke is inconvenient to collect and easily blocks a smoke filtering device and the like are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a boiler flue gas treatment device. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. The boiler will produce flue gas during operation, and the flue gas is usually discharged through pipes and other devices.

[0003] The existing boiler flue gas treatment device has a poor filtering and purification effect on the flue gas. The harmful substances in the flue gas are directly discharged into the air, which will cause serious pollution to the environment. It is also inconvenient to collect large particles contained in the flue gas. Large particles can easily clog the flue gas filtering device, etc., affecting the actual filtering effect of the flue gas and being unfavorable for people's use. Therefore, the technical personnel in this field provide a boiler flue gas treatment device to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a boiler flue gas treatment device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a boiler flue gas treatment device, comprising a flue gas treatment box, one end of the flue gas treatment box is connected to a flue gas inlet pipe, the other end of the flue gas treatment box is connected to a flue gas outlet pipe, a dust shielding assembly is installed in the inner cavity of the flue gas treatment box, the bottom of the flue gas treatment box is connected to a collecting hopper located directly below the dust shielding assembly, and the bottom end of the collecting hopper is detachably connected to a blocking cover;

[0006] A rotating assembly for cleaning the surface of the dust shielding assembly is rotatably mounted on the dust shielding assembly, a driving mechanism for driving the rotating assembly to operate is mounted on the smoke treatment box, and a filter assembly is detachably connected to the end of the smoke outlet pipe.

[0007] Preferably: the dust shield assembly includes two groups of upper baffles fixedly mounted on the top of the inner cavity of the flue gas treatment box, a lower baffle located between the two groups of upper baffles fixedly mounted on the bottom of the inner cavity of the flue gas treatment box, and the lower baffle and the upper baffle are both rotatably connected to the rotating assembly.

[0008] Preferably, the collecting buckets are provided with two groups, and the two groups of collecting buckets are symmetrically installed on both sides of the lower baffle.

[0009] Preferably, the rotating assembly comprises a rotating rod rotatably connected to both the upper baffle plate and the lower baffle plate, and a plurality of cleaning rods respectively fitted to both sides of the upper baffle plate and the lower baffle plate are fixedly mounted on the surface of the rotating rod.

[0010] Preferably, the rotating assembly further comprises scraping strips fixedly mounted on both ends of the rotating rod, and the scraping strips are in contact with the inner wall of the flue gas treatment box.

[0011] Preferably: the driving mechanism includes a servo motor fixedly mounted on the top of the flue gas treatment box, the output end shaft of the servo motor extends to the interior of the flue gas treatment box and is connected to a first bevel gear, and a second bevel gear meshing with the first bevel gear is installed on the rotating rod.

[0012] Preferably, the filter assembly comprises a filter tube connected to the smoke outlet pipe via a flange, a screen is welded at the end of the filter tube, and a primary filter screen, a secondary filter screen and a tertiary filter screen are respectively arranged inside the filter tube.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, by setting the lower baffle and the upper baffle, a certain deflection can be provided for the boiler flue gas flowing inside the flue gas treatment box, and the particles in the flue gas collide with the baffle and can sink to the inside of the collection bucket for centralized collection. Furthermore, a filter component is provided at the smoke outlet pipe, which can efficiently filter the flue gas, and the filter component is not easy to be blocked, thereby effectively preventing harmful substances in the flue gas from circulating into the air.

[0015] 2. In the utility model, a servo motor is arranged to drive the first bevel gear, the second bevel gear and the rotating rod to rotate. The rotating rod drives the cleaning rod to rotate, so that impurities attached to the surfaces of the upper baffle and the lower baffle can be cleaned into the inside of the collecting bucket. The rotating rod drives the scraper rod to rotate, so that impurities attached to the inner wall of the flue gas treatment box can be cleaned into the inside of the collecting bucket, which is convenient for realizing automatic cleaning of the boiler flue gas treatment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

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

[0018] Figure 3 It is a cross-sectional view of the filter assembly structure of the utility model.

[0019] In the figure: 1. flue gas treatment box; 2. smoke inlet pipe; 3. collecting bucket; 4. blocking cover; 5. upper baffle; 6. lower baffle; 7. rotating rod; 8. cleaning rod; 9. scraper; 10. servo motor; 11. first bevel gear; 12. second bevel gear; 13. smoke outlet pipe; 14. filter pipe; 15. screen; 16. primary filter; 17. secondary filter; 18. tertiary filter. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 to Figure 3 In the embodiment of the utility model, a boiler flue gas treatment device includes a flue gas treatment box 1, one end of the flue gas treatment box 1 is connected to a smoke inlet pipe 2, the other end of the flue gas treatment box 1 is connected to a smoke outlet pipe 13, the inner cavity of the flue gas treatment box 1 is installed with a dust shielding assembly, the bottom of the flue gas treatment box 1 is connected to a collecting bucket 3 located directly below the dust shielding assembly, the bottom end of the collecting bucket 3 is detachably connected with a sealing cover 4, the sealing cover 4 can be threadedly connected to the collecting bucket 3, etc., opening the sealing cover 4 can conveniently process the dust inside the collecting bucket 3, a rotating assembly for cleaning its surface is rotatably installed on the dust shielding assembly, a driving mechanism for driving the rotating assembly to operate is installed on the flue gas treatment box 1, and the end of the smoke outlet pipe 13 is detachably connected with a filter assembly.

[0022] When in use, the smoke inlet pipe 2 is connected to the smoke exhaust pipe of the boiler. The smoke generated when the boiler is in use enters the interior of the smoke treatment box 1 through the smoke inlet pipe 2. The smoke flows between the dust shield components. After the larger particles in the smoke collide with the dust shield components, they will sink to the interior of the collecting bucket 3. The smoke after preliminary filtration is filtered through the filter component connected to the smoke outlet pipe 13 and then discharged. The smoke generated by the boiler can be fully filtered, and a driving mechanism is provided to drive the rotating component to rotate. The rotating component can clean the impurities attached to the surface of the dust shield component and the inner wall of the smoke treatment box 1, which is convenient for automatic cleaning of the smoke treatment device.

[0023] In one embodiment, specifically, the dust shielding assembly includes two groups of upper baffles 5 fixedly installed on the top of the inner cavity of the flue gas treatment box 1, and a lower baffle 6 located between the two groups of upper baffles 5 is fixedly installed on the bottom of the inner cavity of the flue gas treatment box 1. The lower baffle 6 and the upper baffle 5 are rotatably connected to the rotating assembly, and the flue gas flowing into the flue gas treatment box 1 from the smoke inlet pipe 2 shuttles between the upper baffle 5 and the lower baffle 6. After the particulate matter collides with the upper baffle 5 or the lower baffle 6, it will sink into the inside of the collecting bucket 3, wherein the collecting bucket 3 is provided with two groups, and the two groups of collecting buckets 3 are symmetrically installed on both sides of the lower baffle 6, which can facilitate the efficient collection and treatment of dust and the like.

[0024] Specifically, the rotating component includes a rotating rod 7 rotatably connected to the upper baffle 5 and the lower baffle 6. A plurality of cleaning rods 8 respectively fitted with the two sides of the upper baffle 5 and the lower baffle 6 are fixedly installed on the surface of the rotating rod 7. The rotating rod 7 drives the cleaning rods 8 to rotate, and the cleaning rods 8 can scrape off the dust attached to the surfaces of the upper baffle 5 and the lower baffle 6. Furthermore, the rotating component also includes scraping strips 9 fixedly installed at both ends of the rotating rod 7. The scraping strips 9 are fitted with the inner wall of the flue gas treatment box 1. The scraping strips 9 rotate with the rotating rod 7, so as to facilitate the cleaning of the inner wall of the flue gas treatment box 1.

[0025] Among them, the driving mechanism includes a servo motor 10 fixedly installed on the top of the flue gas treatment box 1, the output end shaft of the servo motor 10 extends to the interior of the flue gas treatment box 1 and is connected to the first bevel gear 11, and the second bevel gear 12 meshing with the first bevel gear 11 is installed on the rotating rod 7. When the servo motor 10 is started, the servo motor 10 drives the first bevel gear 11 to rotate, the first bevel gear 11 drives the second bevel gear 12 to rotate, and the second bevel gear 12 drives the rotating rod 7 to rotate.

[0026] In one embodiment, specifically, the filter assembly includes a filter tube 14 connected to the smoke outlet pipe 13 through a flange, and a blocking net 15 is welded at the end of the filter tube 14 to prevent garbage and the like from reversely entering the interior of the filter tube 14. The interior of the filter tube 14 is respectively provided with a primary filter screen 16, a secondary filter screen 17 and a tertiary filter screen 18. The primary filter screen 16 can be made of filter materials such as glass fiber and polyester fiber commonly used in the prior art, the secondary filter screen 17 can be made of activated carbon filter, ceramic filter material commonly used in the prior art, and the tertiary filter screen 18 can be made of non-woven fabric materials commonly used in the prior art, which can filter the smoke efficiently.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A boiler flue gas treatment device, comprising a flue gas treatment box (1), one end of the flue gas treatment box (1) being connected to a flue gas inlet pipe (2), and the other end of the flue gas treatment box (1) being connected to a flue gas outlet pipe (13), Features: The inner cavity of the flue gas treatment box (1) is equipped with a dust shielding assembly, and the bottom of the flue gas treatment box (1) is connected to a collecting hopper (3) located directly below the dust shielding assembly, and the bottom end of the collecting hopper (3) is detachably connected to a blocking cover (4); A rotating assembly for cleaning the surface of the dust shielding assembly is rotatably mounted on the dust shielding assembly, a driving mechanism for driving the rotating assembly to operate is mounted on the smoke treatment box (1), and a filter assembly is detachably connected to the end of the smoke outlet pipe (13).

2. A boiler flue gas treatment device according to claim 1, Features: The dust shield assembly comprises two groups of upper baffles (5) fixedly mounted on the top of the inner cavity of the flue gas treatment box (1); a lower baffle (6) located between the two groups of upper baffles (5) is fixedly mounted on the bottom of the inner cavity of the flue gas treatment box (1); and the lower baffle (6) and the upper baffle (5) are both rotatably connected to the rotating assembly.

3. A boiler flue gas treatment device according to claim 2, Features: The collecting buckets (3) are provided in two groups, and the two groups of collecting buckets (3) are symmetrically mounted on both sides of the lower baffle (6).

4. A boiler flue gas treatment device according to claim 2, Features: The rotating assembly comprises a rotating rod (7) rotatably connected to the upper baffle (5) and the lower baffle (6), and a plurality of cleaning rods (8) respectively fitted to both sides of the upper baffle (5) and the lower baffle (6) are fixedly mounted on the surface of the rotating rod (7).

5. A boiler flue gas treatment device according to claim 4, Features: The rotating assembly further comprises scraping strips (9) fixedly mounted on both ends of the rotating rod (7), and the scraping strips (9) are in contact with the inner wall of the flue gas treatment box (1).

6. A boiler flue gas treatment device according to claim 4, Features: The driving mechanism comprises a servo motor (10) fixedly mounted on the top of the flue gas treatment box (1), the output end shaft of the servo motor (10) extending into the interior of the flue gas treatment box (1) and connected to a first bevel gear (11), and the rotating rod (7) is provided with a second bevel gear (12) meshing with the first bevel gear (11).

7. A boiler flue gas treatment device according to claim 1, Features: The filter assembly comprises a filter tube (14) connected to a smoke outlet pipe (13) via a flange, a screen (15) is welded to the end of the filter tube (14), and a primary filter screen (16), a secondary filter screen (17) and a tertiary filter screen (18) are respectively arranged inside the filter tube (14).

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