Biomass boiler flue gas dedusting equipment

Abstract

The utility model relates to dust removal equipment's technical field, especially a kind of biomass boiler flue gas dust removal equipment, it is provided with the filter pool that can be conveniently cleaned, water recycling use can be realized spray, improve practicality;Including flue gas dust removal spray tower, into smoke pipe, discharge pipe, spray head and drain head, the flue gas dust removal spray tower input side is provided with into smoke pipe, still include preposition water tank, support, circulating water tank, water pump, backwater pipe, insert frame, filter screen connecting frame and filter screen, flue gas dust removal spray tower outside lower part is connected with the inside upper portion of support, the inside lower side of support is connected with the lower side of preposition water tank outer end, drain head corresponds to preposition water tank inside, preposition water tank is connected with circulating water tank side intercommunication, and preposition water tank and circulating water tank intercommunication place are provided with insert frame, filter screen connecting frame inside is connected with filter screen, circulating water tank outside side is connected with water pump input end intercommunication, water pump output end is connected with spray head input side intercommunication through backwater pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of dust removal equipment, specifically a dust removal device for flue gas from a biomass boiler. Background Technology

[0002] Biomass boilers are a type of boiler that uses biomass energy as fuel. They are classified into biomass steam boilers, biomass hot water boilers, biomass hot air furnaces, biomass thermal oil furnaces, vertical biomass boilers, and horizontal biomass boilers.

[0003] The flue gas discharged from biomass boilers needs to be treated for dust removal. There is an existing biomass boiler flue gas dust removal device, such as the one with patent publication number CN217247854U. It removes dust from the denitrified flue gas through dust removal components, humidifies the flue gas through spray components, and traps ash inside the cylinder for easy collection and cleaning of ash.

[0004] However, spray dust removal is not practical because it easily wastes a lot of water resources. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a biomass boiler flue gas dust removal device with a filter water tank that can be easily cleaned, enabling water recycling and spraying, thus improving its practicality.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a flue gas dust removal device for a biomass boiler, comprising a flue gas dust removal spray tower, an inlet pipe, an outlet pipe, spray heads, and a drain head. The inlet pipe is located on the input side of the flue gas dust removal spray tower, and the outlet pipe is located on the output side. Spray heads are located at the top of the flue gas dust removal spray tower, with the output end of the spray heads placed inside the tower. A drain head is connected to the bottom of the tower. The device also includes a pre-water tank, a support frame, a circulating water tank, a water pump, a return water pipe, a insertion frame, and a filter screen. The frame and filter screen are connected. The lower outer side of the flue gas dust removal spray tower is connected to the upper inner side of the support. The lower inner side of the support is connected to the lower outer side of the pre-water tank. The drain head is connected to the inside of the pre-water tank. The pre-water tank is connected to the circulating water tank on one side. A plug frame is provided at the connection between the pre-water tank and the circulating water tank. A filter screen connecting frame is detachably installed on the inner side of the plug frame. A fixing mechanism is provided between the plug frame and the filter screen connecting frame. A filter screen is connected to the inner side of the filter screen connecting frame. The outer side of the circulating water tank is connected to the water pump input end. The water pump output end is connected to the spray head input side through the return water pipe.

[0009] Preferably, the fixing mechanism includes a hinge, a top plate, a screw groove frame, a through piece, a bolt, and a pressure plate. One side of the top of the insert frame is movably connected to the top plate via a hinge. The upper part of the other side of the insert frame is connected to a screw groove frame. A through piece is provided on the corresponding side of the top plate. A bolt is movably installed in the through piece. The bolt is detachably screwed in the screw groove frame. A pressure plate is connected to the middle of the top plate via a pressing mechanism.

[0010] Preferably, the clamping mechanism includes a sliding sleeve, a sliding rod, a connecting plate, and a spring. The inner side of the top plate is connected to the outer side of the sliding sleeve, the inner wall of the sliding sleeve is slidably connected to the outer wall of the sliding rod, the bottom end of the sliding rod is connected to the middle of the top side of the pressure plate, the top end of the sliding rod is connected to the middle of the bottom side of the connecting plate, and a spring is connected to the outer side of the sliding sleeve at the top of the top plate on the outer side of the bottom side of the connecting plate.

[0011] Preferably, it also includes a handle, and the top two sides of the filter screen connecting frame are respectively connected to the bottom side of a set of handles.

[0012] Preferably, it also includes a guide hopper, wherein a guide hopper is provided between the bottom side of the flue gas dust removal spray tower and the top side of the drainage head.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a biomass boiler flue gas dust removal device, which has the following beneficial effects:

[0015] Before operation, the filter screen connecting frame is installed in the insert frame and fixed by the fixing mechanism. During operation, flue gas enters the flue gas dust removal spray tower through the inlet pipe and is discharged through the outlet pipe. During this process, the spray head acts on the inside of the flue gas dust removal spray tower to remove dust. After the dust is dissolved, the water is discharged through the drain head to the pre-water tank. In the process of being introduced into the circulating water tank in the pre-water tank, impurities are filtered by the filter screen. The water is stored in the circulating water tank and can be pumped out by the water pump and introduced into the spray head for circulation through the return water pipe. When the fixing mechanism is released, the filter screen connecting frame can be taken out in the insert frame, and then the filter screen can be cleaned or replaced. A filter water pool that can be easily cleaned is set up to realize water recycling spraying and improve practicality. Attached Figure Description

[0016] Figure 1 This is an axial view of the structural schematic diagram of this utility model;

[0017] Figure 2 This utility model Figure 1 Rear view;

[0018] Figure 3 This utility model Figure 1 A magnified view;

[0019] Figure 4 This utility model Figure 1 The left view.

[0020] The following are labels in the attached diagram: 1. Flue gas dust removal spray tower; 2. Inlet pipe; 3. Outlet pipe; 4. Spray head; 5. Drain head; 6. Pre-water tank; 7. Support frame; 8. Circulating water tank; 9. Water pump; 10. Return water pipe; 11. Insert frame; 12. Filter screen connecting frame; 13. Filter screen; 14. Hinge; 15. Top plate; 16. Threaded bracket; 17. Through plate; 18. Bolt; 19. Pressure plate; 20. Sliding sleeve; 21. Sliding rod; 22. Connecting plate; 23. Spring; 24. Lifting handle; 26. Guide bucket. Detailed Implementation

[0021] 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 protection scope of the present utility model. Example

[0022] Please see Figures 1-4A flue gas dust removal device for a biomass boiler includes a flue gas dust removal spray tower 1, an inlet pipe 2, an outlet pipe 3, spray heads 4, and a drain head 5. The inlet pipe 2 is located on the input side of the flue gas dust removal spray tower 1, and the outlet pipe 3 is located on the output side. Spray heads 4 are located at the top of the flue gas dust removal spray tower 1, with the output end of the spray heads 4 placed inside the flue gas dust removal spray tower 1. The drain head 5 is connected to the bottom of the flue gas dust removal spray tower 1. The device also includes a pre-water tank 6 and a support... The system includes a frame 7, a circulating water tank 8, a water pump 9, a return water pipe 10, a insert frame 11, a filter screen connecting frame 12, and a filter screen 13. The lower outer side of the flue gas dust removal spray tower 1 is connected to the upper inner side of the frame 7. The lower inner side of the frame 7 is connected to the lower outer side of the pre-water tank 6. The drain head 5 corresponds to the inside of the pre-water tank 6. The pre-water tank 6 is connected to the circulating water tank 8 on one side, and an insert frame 11 is provided at the connection between the pre-water tank 6 and the circulating water tank 8. A filter screen connecting frame 12 is detachably installed inside the insert frame 11. A fixing mechanism is provided between the connecting frame 12, the insert frame 11, and the filter screen connecting frame 12. A filter screen 13 is connected to the inside of the filter screen connecting frame 12. One side of the circulating water tank 8 is connected to the input end of the water pump 9. The output end of the water pump 9 is connected to the input side of the spray head 4 via the return water pipe 10. Before operation, the filter screen connecting frame 12 is installed inside the insert frame 11 and fixed by the fixing mechanism. During operation, flue gas enters the flue gas dust removal spray tower 1 through the flue gas inlet pipe 2 and is discharged through the outlet pipe 3. The spray head 4 sprays dust inside the flue gas dust removal spray tower 1. After the dust is dissolved, the water is discharged through the drain head 5 into the pre-water tank 6. In the process of being introduced into the circulating water tank 8 from the pre-water tank 6, impurities are filtered by the filter screen 13. The water is stored in the circulating water tank 8 and can be pumped out by the water pump 9 and introduced into the spray head 4 for circulation through the return water pipe 10. When the fixing mechanism is released, the filter screen connecting frame 12 can be taken out in the insertion frame 11, and then the filter screen 13 can be cleaned or replaced.

[0023] The fixing mechanism includes a hinge 14, a top plate 15, a screw groove bracket 16, a through piece 17, a bolt 18, and a pressure plate 19. One side of the top of the insert frame 11 is movably connected to the top plate 15 via the hinge 14. The upper part of the other side of the insert frame 11 is connected to the screw groove bracket 16. The corresponding side of the top plate 15 is provided with a through piece 17, and a bolt 18 is movably installed in the through piece 17. The bolt 18 is detachably screwed into the screw groove bracket 16. The middle part of the top plate 15 is connected to the pressure plate 19 via a pressing mechanism. After the filter screen connecting frame 12 is installed into the insert frame 11, the top plate 15 is closed under the constraint of the hinge 14, so that the through piece 17 and the screw groove bracket 16 correspond. Then, the bolt 18 can be screwed through the through piece 17 into the screw groove bracket 16, thereby closing and fixing the top plate 15. The pressure plate 19 is fixed to the upper side of the filter screen connecting frame 12 by the pressing mechanism, improving stability.

[0024] The pressing mechanism includes a sliding sleeve 20, a sliding rod 21, a connecting plate 22, and a spring 23. The inner side of the middle part of the top plate 15 is connected to the outer side of the sliding sleeve 20. The inner wall of the sliding sleeve 20 is slidably connected to the outer wall of the sliding rod 21. The bottom end of the sliding rod 21 is connected to the middle of the top side of the pressure plate 19. The top end of the sliding rod 21 is connected to the middle of the bottom side of the connecting plate 22. The outer side of the bottom side of the connecting plate 22 is connected to the outer side of the sliding sleeve 20 at the top of the top plate 15 by a spring 23. When the top plate 15 is closed, under the elastic action of the spring 23, the connecting plate 22 can be connected to make the sliding rod 21 slide down in the sliding sleeve 20 and be pressed and fixed on the upper side of the filter screen connecting frame 12 by the pressure plate 19.

[0025] It also includes a handle 24, with the top two sides of the filter screen connecting frame 12 respectively connected to the bottom side of a set of handles 24; by holding the two sets of handles 24, the filter screen connecting frame 12 can be moved, which is convenient for loading, unloading and moving, and improves convenience.

[0026] It also includes a guide bucket 26, which is provided between the bottom side of the flue gas dust removal spray tower 1 and the top side of the drain head 5; the guide bucket 26 can guide the flow at the bottom of the flue gas dust removal spray tower 1 to avoid water accumulation and improve reliability.

[0027] In summary, when using a biomass boiler flue gas dust removal device, the filter screen connecting frame 12 can be moved by holding the two sets of handles 24. Before operation, after the filter screen connecting frame 12 is installed into the insert frame 11, the top plate 15 is closed under the constraint of the hinge 14, so that the through plate 17 and the screw groove frame 16 correspond. Then, the bolt 18 can be passed through the through plate 17 and screwed into the screw groove frame 16, thereby closing and fixing the top plate 15. Under the elastic action of the spring 23, the connecting plate 22 can be connected to make the slide rod 21 slide down in the sliding sleeve 20, and pressed and fixed on the upper side of the filter screen connecting frame 12 by the pressure plate 19. During operation... Flue gas enters the flue gas dust removal spray tower 1 through the inlet pipe 2 and is discharged through the outlet pipe 3. After dust dissolution, the water is guided to the bottom of the flue gas dust removal spray tower 1 through the guide bucket 26 to avoid water accumulation. It is discharged through the drain head 5 to the pre-water tank 6. During the process of being introduced into the circulating water tank 8 in the pre-water tank 6, impurities are filtered by the filter screen 13. The water is stored in the circulating water tank 8 and can be drawn out by the water pump 9 and introduced into the spray head 4 for circulation through the return water pipe 10. When the fixing mechanism is released, the filter screen connecting frame 12 can be taken out in the insertion frame 11, and then the filter screen 13 can be cleaned or replaced.

[0028] This water pump 9 is a commercially available device known to those skilled in the art. We are simply using it here without making any structural or functional improvements, and we will not go into detail about it here.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas dust removal device for a biomass boiler, comprising a flue gas dust removal spray tower (1), an inlet pipe (2), an outlet pipe (3), spray heads (4), and a drain head (5), wherein the flue gas dust removal spray tower (1) is provided with an inlet pipe (2) on its input side, an outlet pipe (3) is provided on its output side, a spray head (4) is provided at the top of the flue gas dust removal spray tower (1), and the output end of the spray head (4) is placed inside the flue gas dust removal spray tower (1), and a drain head (5) is connected to the bottom of the flue gas dust removal spray tower (1), characterized in that, It also includes a pre-water tank (6), a bracket (7), a circulating water tank (8), a water pump (9), a return water pipe (10), a insertion frame (11), a filter screen connection frame (12), and a filter screen (13). The lower outer side of the flue gas dust removal spray tower (1) is connected to the upper inner side of the bracket (7), and the lower inner side of the bracket (7) is connected to the lower outer side of the pre-water tank (6). The drain head (5) corresponds to the inside of the pre-water tank (6), and the pre-water tank (6) is connected to the circulating water tank (8) on one side. Furthermore, a frame (11) is provided at the connection between the pre-water tank (6) and the circulating water tank (8). A filter screen connection frame (12) is detachably installed on the inner side of the frame (11). A fixing mechanism is provided between the frame (11) and the filter screen connection frame (12). A filter screen (13) is connected to the inner side of the filter screen connection frame (12). The outer side of the circulating water tank (8) is connected to the input end of the water pump (9). The output end of the water pump (9) is connected to the input side of the spray head (4) through the return water pipe (10).

2. The biomass boiler flue gas dust removal equipment according to claim 1, characterized in that: The fixing mechanism includes a hinge (14), a top plate (15), a screw groove frame (16), a through plate (17), a bolt (18), and a pressure plate (19). The top side of the insert frame (11) is movably connected to the top plate (15) via the hinge (14). The upper part of the other side of the insert frame (11) is connected to the screw groove frame (16). The top plate (15) is provided with a through plate (17) on the corresponding side. The bolt (18) is movably provided in the through plate (17). The bolt (18) is detachably screwed in the screw groove frame (16). The middle part of the top plate (15) is connected to the pressure plate (19) via a pressing mechanism.

3. The biomass boiler flue gas dust removal equipment according to claim 2, characterized in that: The clamping mechanism includes a sliding sleeve (20), a sliding rod (21), a connecting plate (22), and a spring (23). The inner side of the middle part of the top plate (15) is connected to the outer side of the sliding sleeve (20). The inner wall of the sliding sleeve (20) is slidably connected to the outer wall of the sliding rod (21). The bottom end of the sliding rod (21) is connected to the middle of the top side of the pressure plate (19). The top end of the sliding rod (21) is connected to the middle of the bottom side of the connecting plate (22). The outer side of the bottom side of the connecting plate (22) is connected to the outer side of the sliding sleeve (20) at the top of the top plate (15) by a spring (23).

4. The biomass boiler flue gas dust removal equipment according to claim 1, characterized in that: It also includes a handle (24), and the top two sides of the filter screen connecting frame (12) are respectively connected to the bottom side of a set of handles (24).

5. The biomass boiler flue gas dust removal equipment according to claim 1, characterized in that: It also includes a guide bucket (26), which is provided between the bottom side of the flue gas dust removal spray tower (1) and the top side of the drain head (5).

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