Boiler flue gas treatment filtering device

Abstract

The utility model discloses a boiler flue gas treatment filter device, which belongs to the technical field of boiler flue gas treatment and comprises a filter pipeline, a gas inlet pipeline is fixedly connected to the gas inlet end of the filter pipeline, a plurality of gas inlet communication ports are formed in the wall of the gas outlet end of the gas inlet pipeline at equal intervals in the circumferential direction, and the gas inlet communication ports are communicated with the filter pipeline and the gas inlet pipeline. An air inlet is fixedly connected to the air inlet end of the air inlet pipeline, a filter cartridge is connected to the inner side of a plurality of air inlet communication ports in the filter pipeline, an air outlet pipeline is connected to the air outlet end of the filter pipeline, an air outlet communication port is formed in the middle of the air inlet end wall of the air outlet pipeline, and the air outlet communication port is communicated with the filter cartridge and the air outlet pipeline; the air outlet end of the air outlet pipeline is fixedly connected with an air outlet; according to the utility model, the boiler flue gas can be filtered, the self-cleaning of the filter cartridge can be realized, the real-time filtering effect of the filter cartridge is improved, and the use effect of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler flue gas treatment, and particularly relates to a boiler flue gas treatment and filtration device. Background Technique

[0002] As an indispensable energy device in industrial production and residential life, the flue gas generated during the operation of a boiler contains a large amount of harmful substances such as particulate matter. If directly discharged into the atmosphere, it will not only affect air quality but also have an impact on human health and the environment. Therefore, the filtration of boiler flue gas is particularly important.

[0003] Chinese Patent Application No. 202320704067.8 discloses a filtration mechanism and a boiler flue gas treatment device, including a box body. A spraying member is arranged at the top of the box body, a first filtration member is arranged inside the box body, a water storage tank is arranged on the outer side wall of the box body, and a second filtration member is detachably arranged between the box body and the water storage tank by a limiting member. The spraying member is connected to the water storage tank. When the mechanism filters, boiler flue gas is introduced into the box body through an air inlet pipe. The spraying member sucks the liquid in the water storage tank for spraying to perform dust reduction treatment on the boiler flue gas. The water after spraying is filtered by the first filtration member and then re-filtered by the second filtration member and then discharged into the water storage tank for the recycling of the spraying member. The filtration structure of the second filtration member can be taken out by removing the limitation of the limiting member for cleaning.

[0004] The above technology has the following problems: The cleaning of the filtration member needs to be carried out manually, which is difficult to control the time and is also time-consuming and laborious, reducing the use effect of the device.

[0005] In view of this, a boiler flue gas treatment and filtration device is designed to solve the above problems. Content of the Utility Model

[0006] To solve the problems raised in the above background technique, the utility model provides a boiler flue gas treatment and filtration device, which has the characteristic of improving the use effect of the device.

[0007] To achieve the above object, the utility model provides the following technical solution: A boiler flue gas treatment and filtration device, including: a filtration pipeline, an air inlet pipeline is fixedly connected to the air inlet end of the filtration pipeline. A plurality of air inlet communication ports are circumferentially and equidistantly arranged on the air outlet end wall of the air inlet pipeline. The air inlet communication ports connect the filtration pipeline and the air inlet pipeline. An air inlet is fixedly connected to the air inlet end of the air inlet pipeline. A filtration cylinder is connected inside the filtration pipeline at the inner side of the plurality of air inlet communication ports. An air outlet pipeline is connected to the air outlet end of the filtration pipeline. An air outlet communication port is arranged in the middle of the air inlet end wall of the air outlet pipeline. The air outlet communication port connects the filtration cylinder and the air outlet pipeline. An air outlet is fixedly connected to the air outlet end of the air outlet pipeline.

[0008] Further, a cleaning brush is arranged inside the filtering pipeline and outside the filtering cylinder, and a rotation driving mechanism is assembled between the cleaning brush and the air outlet pipeline.

[0009] Further, the rotation driving mechanism includes a motor fixedly connected to the outer wall of the air outlet, a driving shaft connected to the inner wall of the air outlet pipeline through a bearing, a driving cavity opened inside the air outlet pipeline and outside the air outlet communication port, and a rotating ring connected to the inner end wall of the air inlet of the air outlet pipeline through a bearing. One end of the driving shaft is connected to the output end of the motor through a coupling. The other end of the driving shaft extends into the driving cavity and is fixedly sleeved with a gear. One end of the rotating ring extends into the driving cavity and an internal gear ring is fixedly connected to the inner wall. The internal gear ring is meshed with the gear. The other end of the rotating ring extends into the filtering pipeline and is outside the filtering cylinder and is fixedly connected to one end of the cleaning brush.

[0010] Further, the inner wall of the filtering pipeline on the side close to the air outlet pipeline is provided with an internal thread structure. An external thread ring is fixedly connected to the side wall of the air outlet pipeline close to the filtering pipeline and outside the cleaning brush. The air outlet pipeline and the filtering pipeline are detachably connected through the threaded connection between the external thread ring and the filtering pipeline.

[0011] Further, a socket column is fixedly connected to the middle of the side wall of the air inlet pipeline close to the filtering pipeline. One end of the filtering cylinder is sleeved on the socket column and the other end is squeezed by the air outlet pipeline to realize the detachable connection with the filtering pipeline.

[0012] Further, an annular scraper is fixedly connected to the side of the cleaning brush far from the rotating ring, and the outer side wall of the annular scraper contacts the inner side wall of the filtering pipeline.

[0013] Further, a mounting flange is fixedly sleeved on the outer side of the air inlet far from the air inlet pipeline.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model is composed of an air inlet pipeline, a filtering pipeline and an air outlet pipeline. The air inlet pipeline and the filtering pipeline are communicated through a plurality of air inlet communication ports. A filtering cylinder is arranged inside the filtering pipeline and on the inner side of the plurality of air inlet communication ports. The air outlet pipeline and the filtering cylinder are communicated through an air outlet communication port. When filtering and processing boiler flue gas, the flue gas enters the space outside the filtering cylinder through the plurality of air inlet communication ports, enters the space inside the filtering cylinder after being filtered by the filtering cylinder, and then is discharged through the air outlet pipeline. In this process, when the flue gas enters, it directly blows against the outer wall of the filtering cylinder, which can not only realize the filtering and processing of the boiler flue gas, but also realize the self-cleaning of the filtering cylinder, improve the real-time filtering effect of the filtering cylinder, and improve the use effect of the device.

[0016] 2. The utility model is provided with a cleaning brush driven by a rotation driving mechanism to rotate, which can perform rotational self-cleaning on the outer side wall of the filtering cylinder, further improve the real-time filtering effect of the filtering cylinder, and improve the use effect of the device.

[0017] 3. The utility model is provided with an internal thread section and an external thread ring, and at the same time, a socket column and an annular scraper are provided to realize the disassembly and assembly of the air outlet pipe and the filter cartridge, which is convenient for ash cleaning, maintenance or overhaul operations of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional view of the utility model;

[0019] Figure 2 is a cross-sectional view of the utility model;

[0020] Figure 3 is the utility model Figure 2 exploded view;

[0021] Figure 4 is the utility model Figure 3 partial cross-sectional view at A in;

[0022] In the figure: 1, intake pipe; 2, filter pipe; 3, air outlet pipe; 4, intake port; 5, intake connection port; 6, annular scraper; 7, cleaning brush; 8, external thread ring; 9, rotating ring; 10, gear; 11, drive shaft; 12, motor; 13, air outlet; 14, drive cavity; 15, internal gear ring; 16, air outlet connection port; 17, filter cartridge; 18, socket column; 19, mounting flange. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0024] Embodiment 1

[0025] A boiler flue gas treatment and filtering device comprises: a filter pipe 2 with openings at both ends, the air inlet end of the filter pipe 2 is fixedly connected to an air inlet pipe 1 with one end closed and the other end open, the closed end of the air inlet pipe 1 is fixedly connected to the filter pipe 2, and a plurality of air inlet connecting ports 5 are circumferentially and evenly spaced on the air outlet end wall, i.e., the closed end, of the air inlet pipe 1, the air inlet connecting ports 5 connect the filter pipe 2 and the air inlet pipe 1, an air inlet 4 is fixedly connected to the air inlet end, i.e., the open end, of the air inlet pipe 1, a filter cartridge 17 with openings at both ends is connected to the inner side of the plurality of air inlet connecting ports 5 located inside the filter pipe 2, an air outlet pipe 3 with one end closed and the other end open is connected to the air outlet end of the filter pipe 2, the closed end of the air outlet pipe 3 is fixedly connected to the filter pipe 2, an air outlet connecting port 16 with the same opening area as the filter cartridge 17 is opened in the middle of the air inlet end wall, i.e., the closed end, of the air outlet pipe 3, the air outlet connecting port 16 connects the filter cartridge 17 and the air outlet pipe 3, and an air outlet 13 is fixedly connected to the air outlet end, i.e., the open end, of the air outlet pipe 3.

[0026] In this embodiment, see the attached Figures 1-3 Before using the device, connect the air inlet 4 to the boiler flue gas pipeline;

[0027] When the device is used, the boiler flue gas enters the air inlet 4 through the boiler flue gas pipe, then enters the air inlet pipe 1 through the air inlet 4, and then enters the space outside the filter cartridge 17 in the filter pipe 2 through a plurality of air inlet connecting ports 5 from the air inlet pipe 1. After being filtered by the filter cartridge 17, the boiler flue gas enters the internal space of the filter cartridge 17, then enters the air outlet pipe 3 through the air outlet connecting port 16, then enters the air outlet 13 through the air outlet pipe 3, and finally is discharged from the air outlet 13, thereby achieving the filtering treatment of the boiler flue gas.

[0028] Since the boiler flue gas directly blows the filter cartridge 17 during the process of entering the filter pipe 2 from the plurality of air inlet connecting ports 5 , partially filtered impurities on the filter cartridge 17 can be blown away, thereby achieving self-cleaning of the filter cartridge 17 and improving the filtering effect of the filter cartridge 17 .

[0029] Embodiment 2

[0030] The difference between this embodiment and the first embodiment is that:

[0031] Specifically, a cleaning brush 7 is provided inside the filter pipe 2 and outside the filter cartridge 17 , and a rotation driving mechanism is installed between the cleaning brush 7 and the air outlet pipe 3 .

[0032] Specifically, the rotation driving mechanism includes a motor 12 fixedly connected to the outer wall of the air outlet 13, a driving shaft 11 connected to the inner wall of the air outlet pipe 3 through bearings, a driving cavity 14 opened inside the air outlet pipe 3 outside the air outlet communication port 16, and a rotating ring 9 connected to the inlet end wall (i.e., the closed end) of the air outlet pipe 3 through bearings. One end of the driving shaft 11 is connected to the output end of the motor 12 through a coupling, and the other end of the driving shaft 11 extends into the driving cavity 14 and is fixedly sleeved with a gear 10. One end of the rotating ring 9 extends into the driving cavity 14 and an internal gear ring 15 is fixedly connected to the inner wall. The internal gear ring 15 is meshed and connected with the gear 10. The other end of the rotating ring 9 extends into the filter pipe 2 outside the filter cylinder 17 and is fixedly connected to one end of the cleaning brush 7.

[0033] In this embodiment, referring to the attached Figures 2-4 , during the filtering process of the device, the cleaning brush 7 is driven to rotate by the rotation driving mechanism to clean the filter cylinder 17, improving the filtering effect of the filter cylinder 17.

[0034] Among them, the rotation driving mechanism drives the output end of the motor 12 to rotate, driving the driving shaft 11 to rotate. The driving shaft 11 drives the gear 10 to rotate, the gear 10 drives the meshed internal gear ring 15 to rotate, the internal gear ring 15 drives the rotating ring 9 to rotate, and the rotating ring 9 drives the cleaning brush 7 to rotate.

[0035] Embodiment Three

[0036] The difference between this embodiment and Embodiment Two is as follows:

[0037] Specifically, the inner wall of the filter pipe 2 on the side close to the air outlet pipe 3 is provided with an internal thread structure. An external thread ring 8 is fixedly connected to the side wall of the air outlet pipe 3 close to the filter pipe 2 outside the cleaning brush 7. The air outlet pipe 3 and the filter pipe 2 are detachably connected by screwing the external thread ring 8 with the filter pipe 2.

[0038] In this embodiment, referring to the attached Figures 2-3 , by rotating the air outlet pipe 3, the external thread ring 8 can be driven to rotate, so that the external thread ring 8 is connected to or detached from the filter pipe 2, realizing the disassembly and assembly of the air outlet pipe 3 and the filter pipe 2, facilitating the cleaning of the filter impurities on the filter cylinder 17, inside the filter pipe 2 and on the cleaning brush 7, as well as the maintenance or repair of the filter cylinder 17 and the cleaning brush 7.

[0039] Specifically, a socket column 18 is fixedly connected to the middle of the side wall of the air inlet pipe 1 close to the filter pipe 2. The filter cylinder 17 is detachably connected to the filter pipe 2 by sleeving one end on the socket column 18 and being squeezed by the air outlet pipe 3 at the other end.

[0040] In this embodiment, referring to the attached Figures 2-3, the filter cartridge 17 is disassembled and assembled with the filter pipe 2 by pushing and pulling the socket or disengaging the socket post 18, which facilitates the cleaning of the filter impurities on the filter cartridge 17 and the maintenance or repair of the filter cartridge 17.

[0041] Embodiment 4

[0042] The difference between this embodiment and Embodiment 3 is that:

[0043] Specifically, a ring-shaped scraper 6 is fixedly connected to the side of the cleaning brush 7 away from the rotating ring 9, and the outer side wall of the ring-shaped scraper 6 contacts the inner side wall of the filter pipe 2.

[0044] In this embodiment, referring to the appendix Figures 2-3 , when the air outlet pipe 3 is disassembled to clean the filter impurities on the filter cartridge 17, inside the filter pipe 2 and on the cleaning brush 7, and to maintain or repair the filter cartridge 17 and the cleaning brush 7, the ring-shaped scraper 6 is driven to move synchronously. The moving ring-shaped scraper 6 scrapes the filter impurities adhering to the inner wall of the filter pipe 2 and the filter impurities accumulated at the bottom, improving the impurity removal effect and efficiency of the filter pipe 2.

[0045] Embodiment 5

[0046] The difference between this embodiment and Embodiment 4 is that:

[0047] Specifically, an installation flange 19 is fixedly sleeved on the outer side of the air inlet 4 away from the air inlet pipe 1.

[0048] In this embodiment, referring to the appendix Figures 2-3 , the air inlet 4 is connected to the boiler flue gas pipe by fixing the installation flange 19 on the boiler flue gas pipe with bolts, which is convenient and fast.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler flue gas treatment and filtration device, characterized in that, Including: A filtering pipeline (2), an intake pipeline (1) is fixedly connected to the intake end of the filtering pipeline (2). A plurality of intake communication ports (5) are circumferentially and equidistantly arranged on the outlet end wall of the intake pipeline (1). The intake communication ports (5) connect the filtering pipeline (2) and the intake pipeline (1). An intake port (4) is fixedly connected to the intake end of the intake pipeline (1). A filtering cylinder (17) is connected inside the filtering pipeline (2) on the inner side of the plurality of intake communication ports (5). The outlet end of the filtering pipeline (2) is connected to an outlet pipeline (3). An outlet communication port (16) is opened in the middle of the intake end wall of the outlet pipeline (3). The outlet communication port (16) connects the filtering cylinder (17) and the outlet pipeline (3). An outlet port (13) is fixedly connected to the outlet end of the outlet pipeline (3).

2. The boiler flue gas treatment and filtration device according to claim 1, characterized in that: A cleaning brush (7) is arranged outside the filtering cylinder (17) inside the filtering pipeline (2). A rotation driving mechanism is assembled between the cleaning brush (7) and the outlet pipeline (3).

3. A boiler flue gas treatment and filtration device according to claim 2, characterized in that: The rotation driving mechanism includes a motor (12) fixedly connected to the outer wall of the outlet port (13), a driving shaft (11) connected to the inner wall of the outlet pipeline (3) through a bearing, a driving cavity (14) opened inside the outlet pipeline (3) outside the outlet communication port (16), and a rotating ring (9) connected to the intake end wall of the outlet pipeline (3) through a bearing. One end of the driving shaft (11) is connected to the output end of the motor (12) through a coupling. The other end of the driving shaft (11) extends into the driving cavity (14) and is fixedly sleeved with a gear (10). One end of the rotating ring (9) extends into the driving cavity (14) and an internal gear ring (15) is fixedly connected to the inner wall. The internal gear ring (15) is meshed and connected with the gear (10). The other end of the rotating ring (9) extends into the filtering pipeline (2) outside the filtering cylinder (17) and is fixedly connected to one end of the cleaning brush (7).

4. A boiler flue gas treatment and filtration device according to claim 2, characterized in that: The inner wall on one side of the filtering pipeline (2) close to the outlet pipeline (3) is provided with an internal thread structure. An external thread ring (8) is fixedly connected to the side wall of the outlet pipeline (3) close to the filtering pipeline (2) outside the cleaning brush (7). The outlet pipeline (3) and the filtering pipeline (2) are detachably connected by screwing the external thread ring (8) and the filtering pipeline (2).

5. A boiler flue gas treatment and filtration device according to claim 1, characterized in that: A socket column (18) is fixedly connected to the middle of the side wall of the intake pipeline (1) close to the filtering pipeline (2). The filtering cylinder (17) is detachably connected to the filtering pipeline (2) by sleeving one end on the socket column (18) and being squeezed by the outlet pipeline (3) at the other end.

6. The boiler flue gas treatment and filtration device according to claim 3, characterized in that: An annular scraper (6) is fixedly connected to the side of the cleaning brush (7) away from the rotating ring (9). The outer side wall of the annular scraper (6) contacts the inner side wall of the filtering pipeline (2).

7. A boiler flue gas treatment and filtration device according to claim 1, characterized in that: An installation flange (19) is fixedly sleeved on the outer side of the intake port (4) away from the intake pipeline (1).

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