Cloth bag dust removal device for boiler flue gas emission

Abstract

The utility model discloses a cloth bag dust removal device for boiler flue gas emission, which belongs to the technical field of boiler flue gas emission, and comprises a dust removal box, the bottom of the inner cavity of the dust removal box is fixedly connected with a stand column, the top end of the stand column is fixedly connected with a collecting cylinder, and the side part of the dust removal box is provided with a dust discharge mechanism. The side part of the collecting barrel is fixedly connected with an air inlet pipe, and the end part of the air inlet pipe is fixedly connected to the outer part of the dust removal box in a sleeving manner. According to the utility model, the dust in the flue gas is filtered by using the dust removal cloth bag; flowing of smoke on the top of the inner cavity of the dust removal box is utilized to drive the wind wheel to rotate, the wind wheel drives the U-shaped frame and the brush to rotate in the inner cavity of the dust removal bag, the brush is utilized to sweep dust on the inner wall of the dust removal bag, the function of automatically sweeping the dust on the inner wall of the dust removal bag is achieved, and the filtering effect of the dust removal bag is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler flue gas emission, and more specifically, to a bag dust removal device for boiler flue gas emission. Background Technique

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy and electrical energy in fuel, and the boiler outputs steam, high-temperature water or organic heat carriers with a certain amount of heat energy. The flue gas generated during fuel combustion on the boiler contains substances such as dust, sulfides, and nitrides. Therefore, it is necessary to treat the flue gas before emission. Among them, when treating the dust in the flue gas, a bag is often used for dust removal.

[0003] After retrieval, the utility model patent with the publication number of CN219376425U discloses a bag dust removal device for boiler flue gas emission, which includes a dust removal box. A fixed cylinder and a dust collection cylinder are fixed inside the dust removal box. A bag is hermetically connected between the fixed cylinder and the dust collection cylinder. A cross plate is also fixed inside the dust collection cylinder. A rotating rod is inserted at the center of the cross plate. Three connecting plates are fixed on the side of the rotating rod. The other end of the connecting plate is fixed with a brush plate. One side of the dust collection cylinder is communicated with an air inlet pipe. The bottom of the dust collection cylinder is threadedly connected with a sealing plate; in this kind of bag dust removal device for boiler flue gas emission, a cross plate for fixing the rotating rod is arranged in the dust collection cylinder, a rotating rod is arranged on the cross plate, and a brush plate is arranged on the rotating rod. The rotating rod extends into the bag, and the brush plate is attached to the inner wall of the bag. When it is necessary to clean the dust on the inner wall of the bag, only need to rotate the rotating rod to drive the brush plate to scrape along the inner wall of the bag, and the dust on the inner wall of the bag can be scraped off, thereby improving the practicability.

[0004] However, the above patent still has the following deficiencies: When cleaning the dust on the inner wall of the bag, manual operation is required. When the bag removes dust from the flue gas, if the dust is blocked on the inner wall of the bag and cannot be processed in time, it will affect the efficiency of flue gas discharge, thereby affecting the efficiency of flue gas treatment; and it is necessary to manually clean the dust collected in the dust collection cylinder, which is not convenient to use. For this reason, we propose a bag dust removal device for boiler flue gas emission. Content of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a bag dust removal device for boiler flue gas emission.

[0006] To solve the above problems, the utility model adopts the following technical solutions:

[0007] A bag dust collector for boiler flue gas emission, comprising a dust removal box. A column is fixedly connected to the bottom of the inner cavity of the dust removal box. The top of the column is fixedly connected with a collection cylinder. A dust discharge mechanism is arranged on the side of the dust removal box. An air inlet pipe is fixedly connected to the side of the collection cylinder. The end of the air inlet pipe is fixedly sleeved outside the dust removal box. Two brackets are fixedly connected to the inner wall of the dust removal box. The ends of the two brackets are fixedly connected with a fixed cylinder. A dust removal cloth bag is sleeved between the fixed cylinder and the collection cylinder. A rotating shaft is rotatably connected to the fixed cylinder. The bottom end of the rotating shaft extends into the inner cavity of the dust removal cloth bag and is fixedly connected with a U-shaped frame. A brush is arranged on the side of the U-shaped frame. The end of the brush is in contact with the inner wall of the dust removal cloth bag. The top end of the rotating shaft extends to the top of the fixed cylinder and is fixedly connected with a wind wheel.

[0008] As a preferred solution of the present utility model, the dust discharge mechanism includes a dust guide pipe fixedly sleeved outside the dust removal box. The end of the dust guide pipe is connected to the bottom of the inner cavity of the collection cylinder. A dust discharge pipe is arranged at the bottom of one end of the dust guide pipe. A cover is sleeved at the bottom end of the dust discharge pipe. A servo motor is fixedly installed at the end of the dust guide pipe. The output shaft of the servo motor extends into the inner cavity of the dust guide pipe and is fixedly connected with a spiral feeding rod. The end of the spiral feeding rod extends to the bottom of the inner cavity of the collection cylinder. The outer side of the spiral feeding rod is in contact with the inner wall of the dust guide pipe and the inner wall of the bottom of the inner cavity of the collection cylinder respectively.

[0009] As a preferred solution of the present utility model, the top and bottom ends of the dust removal cloth bag are respectively sleeved outside the bottom end of the fixed cylinder and the top end of the collection cylinder. Two arc-shaped clamps are respectively sleeved outside the top and bottom ends of the dust removal cloth bag. Threaded holes are respectively opened at both ends of the arc-shaped clamp. Bolts are threadedly installed in the threaded holes.

[0010] As a preferred solution of the present utility model, a dust guide slope is arranged at the top end of the inner cavity of the collection cylinder.

[0011] As a preferred solution of the present utility model, a side plate is hinged to the front of the dust removal box. An exhaust port is arranged at the top of the dust removal box.

[0012] As a preferred solution of the present utility model, a control panel is fixedly installed on the front of the dust removal box. The control panel is electrically connected to the servo motor.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] (1) In this utility model, a dust removal cloth bag is used to filter the dust in the flue gas. In addition, the flow of the flue gas at the top of the inner cavity of the dust removal box drives the wind wheel to rotate. The wind wheel drives the U-shaped frame and the brush to rotate in the inner cavity of the dust removal cloth bag, and the brush is used to clean the dust on the inner wall of the dust removal cloth bag, realizing the function of automatically cleaning the dust on the inner wall of the dust removal cloth bag and ensuring the filtering effect of the dust removal cloth bag.

[0015] (2) In this utility model, through the coordinated use of the dust guide pipe, the dust discharge pipe, the servo motor, and the spiral feeding rod, the servo motor drives the spiral feeding rod to rotate. Through the rotation of the spiral feeding rod, the dust in the inner cavity of the collection cylinder is introduced into the inner cavity of the dust guide pipe, and the dust in the dust guide pipe is discharged from the dust discharge pipe, realizing the function of automatically discharging the dust in the collection cylinder, with good practicability. Brief Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of this utility model;

[0017] Figure 2 is the sectional schematic diagram of this utility model;

[0018] Figure 3 is the structural schematic diagram of the collection cylinder of this utility model;

[0019] Figure 4 is the sectional schematic diagram of the dust removal box of this utility model;

[0020] Figure 5 is the structural schematic diagram of the arc-shaped clamp of this utility model.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1. Dust removal box; 2. Column; 3. Collection cylinder; 4. Bracket; 5. Fixed cylinder; 6. Air inlet pipe; 7. Dust discharge mechanism; 8. Dust removal cloth bag; 9. Rotating shaft; 10. Wind wheel; 11. U-shaped frame; 12. Brush; 13. Dust guide pipe; 14. Dust discharge pipe; 15. Servo motor; 16. Spiral feeding rod; 17. Sealing cover; 18. Control panel; 19. Side plate; 20. Exhaust port; 21. Arc-shaped clamp; 22. Threaded hole; 23. Bolt; 24. Dust guide slope. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of this utility model will be clearly and completely described in conjunction with the drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Embodiment:

[0027] Please refer to Figures 1-5 , a bag dust removal device for boiler flue gas emission, comprising a dust removal box 1. A column 2 is fixedly connected to the bottom of the inner cavity of the dust removal box 1. The top of the column 2 is fixedly connected to a collection cylinder 3. A dust discharge mechanism 7 is arranged on the side of the dust removal box 1. An air inlet pipe 6 is fixedly connected to the side of the collection cylinder 3. The end of the air inlet pipe 6 is fixedly sleeved outside the dust removal box 1. Two brackets 4 are fixedly connected to the inner wall of the dust removal box 1. The ends of the two brackets 4 are fixedly connected to a fixed cylinder 5. A dust removal cloth bag 8 is sleeved between the fixed cylinder 5 and the collection cylinder 3. A rotating shaft 9 is rotatably connected to the fixed cylinder 5. The bottom end of the rotating shaft 9 extends into the inner cavity of the dust removal cloth bag 8 and is fixedly connected to a U-shaped frame 11. A brush 12 is arranged on the side of the U-shaped frame 11. The end of the brush 12 is in contact with the inner wall of the dust removal cloth bag 8. The top end of the rotating shaft 9 extends to the top of the fixed cylinder 5 and is fixedly connected to a wind wheel 10.

[0028] In this embodiment, the outer diameter of the fixed cylinder 5 is equal to the outer diameter of the collection cylinder 3, ensuring that the dust removal cloth bag 8 can be smoothly sleeved on the collection cylinder 3 and the fixed cylinder 5. In addition, the bottom ends of the rotating shaft 9 and the U-shaped frame 11 are higher than the top end of the collection cylinder 3, so as to facilitate the disassembly and assembly of the dust removal cloth bag 8.

[0029] Specifically, please refer to Figures 1 to 3, the dust exhaust mechanism 7 includes a dust guide pipe 13 fixedly sleeved outside the dust removal box 1. The end of the dust guide pipe 13 is connected to the bottom of the inner cavity of the collection cylinder 3. A dust exhaust pipe 14 is provided at the bottom of one end of the dust guide pipe 13. A sealing cover 17 is sleeved at the bottom end of the dust exhaust pipe 14. A servo motor 15 is fixedly installed at the end of the dust guide pipe 13. The output shaft of the servo motor 15 extends into the inner cavity of the dust guide pipe 13 and is fixedly connected to a spiral feeding rod 16. The end of the spiral feeding rod 16 extends to the bottom of the inner cavity of the collection cylinder 3. The outer side of the spiral feeding rod 16 is respectively in contact with the inner wall of the dust guide pipe 13 and the inner wall of the bottom of the inner cavity of the collection cylinder 3.

[0030] In this embodiment, the bottom end of the dust exhaust pipe 14 is blocked by the sealing cover 17. When it is necessary to discharge the dust in the inner cavity of the collection cylinder 3, the sealing cover 17 is removed from the bottom end of the dust exhaust pipe 14.

[0031] Specifically, please refer to Figure 2 and Figure 5 , the top and bottom ends of the dust removal cloth bag 8 are respectively sleeved outside the bottom end of the fixed cylinder 5 and the top end of the collection cylinder 3. Two arc-shaped clamps 21 are respectively sleeved outside the top and bottom ends of the dust removal cloth bag 8. Threaded holes 22 are respectively opened at both ends of the arc-shaped clamp 21, and bolts 23 are threadedly installed in the threaded holes 22.

[0032] In this embodiment, the top and bottom ends of the dust removal cloth bag 8 are clamped and fixed by two arc-shaped clamps 21 respectively, so that the top and bottom ends of the dust removal cloth bag 8 are installed on the fixed cylinder 5 and the collection cylinder 3.

[0033] Specifically, please refer to Figure 4 , a dust guide slope 24 is provided at the top end of the inner cavity of the collection cylinder 3.

[0034] In this embodiment, the dust guide slope 24 is used to ensure that the dust swept from the inner wall of the dust removal cloth bag 8 smoothly falls into the inner cavity of the collection cylinder 3.

[0035] Specifically, please refer to Figure 1 , a side plate 19 is hinged to the front of the dust removal box 1, and an exhaust port 20 is provided at the top of the dust removal box 1.

[0036] In this embodiment, the dust removal cloth bag 8 is replaced by opening the side plate 19, and the filtered flue gas in the dust removal box 1 is discharged through the exhaust port 20.

[0037] Specifically, please refer to Figure 1 , a control panel 18 is fixedly installed on the front of the dust removal box 1, and the control panel 18 is electrically connected to the servo motor 15.

[0038] In this embodiment, the servo motor 15 is controlled by using the control panel 18.

[0039] Working principle: When in use, the boiler flue gas is introduced into the inner cavity of the collection cylinder 3 through the intake pipe 6, and the dust in the flue gas is filtered by the dust removal cloth bag 8 above the collection cylinder 3. The filtered flue gas is discharged from the exhaust port 20. At the same time, the rotation of the wind wheel 10 is driven by the flow of the flue gas. The rotation shaft 9, the U-shaped frame 11 and the brush 12 are driven by the wind wheel 10 to rotate. The dust filtered on the inner wall of the dust removal cloth bag 8 is swept down by the brush 12, and the dust falls into the bottom of the inner cavity of the collection cylinder 3 for collection. In addition, when the flue gas is not processed, the cover 17 is removed from the dust discharge pipe 14, the servo motor 15 is started to drive the spiral feeding rod 16 to rotate, and the dust in the inner cavity of the collection cylinder 3 is driven to move in the dust guide pipe 13 by the rotation of the spiral feeding rod 16. When the dust moves above the dust discharge pipe 14, the dust is discharged from the dust discharge pipe 14, and that's it.

[0040] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitution or change, and should be covered by the protection scope of the present invention.

Claims

1. A bag filter device for boiler flue gas emission, comprising a dust removal box (1), characterized in that: At the bottom of the inner cavity of the dust removal box (1), there is a fixed column (2). At the top of the column (2), there is a fixed collection cylinder (3). On the side of the dust removal box (1), there is a dust discharge mechanism (7). On the side of the collection cylinder (3), there is an air inlet pipe (6) fixedly connected. The end of the air inlet pipe (6) is fixedly sleeved outside the dust removal box (1). On the inner wall of the dust removal box (1), there are two fixed brackets (4). At the ends of the two brackets (4), there is a fixed cylinder (5). A dust removal cloth bag (8) is sleeved between the fixed cylinder (5) and the collection cylinder (3). On the fixed cylinder (5), there is a rotating shaft (9) rotatably connected. The bottom end of the rotating shaft (9) extends into the inner cavity of the dust removal cloth bag (8) and is fixedly connected with a U-shaped frame (11). On the side of the U-shaped frame (11), there is a brush (12). The end of the brush (12) is in contact with the inner wall of the dust removal cloth bag (8). The top end of the rotating shaft (9) extends to the top of the fixed cylinder (5) and is fixedly connected with a wind wheel (10).

2. The bag filter for boiler flue gas emission according to claim 1, wherein: The dust discharge mechanism (7) includes a dust guide pipe (13) fixedly sleeved on the outside of the dust removal box (1). The end of the dust guide pipe (13) is connected to the bottom of the inner cavity of the collection cylinder (3). At the bottom of one end of the dust guide pipe (13), there is a dust discharge pipe (14). The bottom end of the dust discharge pipe (14) is sleeved with a cover (17). At the end of the dust guide pipe (13), there is a servo motor (15) fixedly installed. The output shaft of the servo motor (15) extends into the inner cavity of the dust guide pipe (13) and is fixedly connected with a spiral feeding rod (16). The end of the spiral feeding rod (16) extends to the bottom of the inner cavity of the collection cylinder (3). The outer side of the spiral feeding rod (16) is in contact with the inner wall of the dust guide pipe (13) and the inner wall of the bottom of the inner cavity of the collection cylinder (3) respectively.

3. A bag dust removal device for boiler flue gas emission according to claim 1, characterized in that: The top and bottom ends of the dust removal cloth bag (8) are respectively sleeved on the outside of the bottom end of the fixed cylinder (5) and the top end of the collection cylinder (3). On the outside of the top and bottom ends of the dust removal cloth bag (8), there are two arc-shaped clips (21) sleeved respectively. At both ends of the arc-shaped clip (21), there are threaded holes (22) respectively. In the threaded holes (22), there are bolts (23) threadedly installed.

4. A bag filter for boiler flue gas emission according to claim 1, characterized in that: At the top end of the inner cavity of the collection cylinder (3), there is a dust guide slope (24).

5. A bag dust collector for boiler flue gas emission according to claim 1, characterized in that: On the front of the dust removal box (1), there is a side plate (19) hinged. On the top of the dust removal box (1), there is an exhaust port (20).

6. The bag filter for boiler flue gas emission according to claim 2, wherein: On the front of the dust removal box (1), there is a control panel (18) fixedly installed. The control panel (18) is electrically connected to the servo motor (15).

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