Cyclone dust collector with spraying device

Abstract

The utility model relates to the technical field of cyclone dust collectors, in particular to a cyclone dust collector with a spraying device, which comprises a cylinder part and a dust collecting part, an air inlet pipe is arranged on one side of the cylinder part, an air outlet pipe is arranged at the upper end of the cylinder part, a waste discharge port is arranged on the dust collecting part, a spraying structure is arranged in the cylinder part, and the spraying device is arranged in the cylinder part. A water inlet pipe matched with the spraying structure is fixedly arranged at the upper end of the cylinder part, a cleaning ring is arranged in the cylinder part, a driving structure matched with the cleaning ring is arranged on the cylinder part, the cleaning ring is controlled to move up and down through the driving structure, and the inner wall of the cylinder part is cleaned through the cleaning ring; dust is prevented from being attached to the inner wall of the cylinder part, it is guaranteed that the cyclone dust collector can stably remove dust, the annular pipe and the spray head are arranged to be matched for spraying liquid, the liquid is mixed with the dust in the cylinder part to form large particles, and the dust is conveniently separated from airflow.

Description

Technical Field

[0001] This utility model relates to the field of cyclone dust collector technology, and in particular to a cyclone dust collector with a spray device. Background Technology

[0002] Cyclone dust collectors are a type of dust removal device. In principle, the dust-laden airflow enters the dust collector through a tangential inlet. The airflow rotates downwards within the dust collector, and dust particles in the airflow move towards the outer wall under centrifugal force, reaching the wall surface. Under the combined action of airflow and gravity, they fall along the wall into the ash hopper, achieving separation. The dust settles in the dust collection box and is discharged through the ash discharge valve. The purified gas forms an upward vortex, which converges into the gas collection chamber through the exhaust pipe and is discharged through the chimney, achieving the dust removal effect.

[0003] To enhance dust removal efficiency and reduce dust content in the exhaust airflow, existing cyclone dust collectors typically incorporate a spray system. This system utilizes water mist to adhere to and agglomerate dust particles into larger particles, which are then separated from the air. For example, Chinese Patent Publication No. CN220159575U discloses a "Spray Washing Cyclone Dust Collector." Simultaneously, a prepared solution is sprayed through a spray nozzle onto the moving dust as it enters the cyclone chamber with a conical funnel at the bottom. The dust particles and mist mix thoroughly within the cyclone chamber, forming larger particles. These larger particles spiral down the cyclone chamber wall and finally fall through an open bottom valve into a conveying pipe or storage container. The clean flue gas rotates and rises within the cyclone chamber, escaping through the flue gas outlet pipe to enter the next processing stage. This method efficiently washes coal-fired flue gas, recovers dust, and facilitates denitrification.

[0004] However, in actual use, after the dust and mist mix inside the straight cylinder, they not only fall downwards, but also easily adhere to the inner wall of the vortex cavity. Over time, the internal space of the vortex cavity gradually shrinks, while the input airflow remains unchanged, affecting the dust removal effect and easily polluting the environment. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as dust and mist easily adhering to the inner wall of the cyclone chamber after mixing inside the straight cylinder, causing the internal space of the straight cylinder to gradually shrink and affecting the dust removal effect of the airflow. Therefore, this invention proposes a cyclone dust collector with a spraying device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a cyclone dust collector with a spray device, including a cylindrical part and a dust collection part. An air inlet pipe is provided on one side of the cylindrical part, and an air outlet pipe is provided at the upper end of the cylindrical part. A waste discharge port is provided on the dust collection part, and a control valve is connected to the waste discharge port. A spray structure is provided inside the cylindrical part. A water inlet pipe that cooperates with the spray structure is fixedly provided at the upper end of the cylindrical part. A cleaning ring is provided inside the cylindrical part, and the spray structure is located inside the cleaning ring. A drive structure that cooperates with the cleaning ring is provided on the cylindrical part.

[0008] Furthermore, the spray structure includes multiple annular tubes disposed within the cleaning ring, each annular tube being provided with multiple nozzles, and each annular tube being connected to the water inlet pipe.

[0009] Furthermore, the spray structure also includes a connecting plate fixedly connected to the plurality of annular tubes, and the connecting plate is fixedly connected to the top of the cylindrical portion.

[0010] Furthermore, the drive structure includes a rigid chain lifting device, and the cylindrical part has a through groove that cooperates with the chain of the rigid chain lifting device. The chain passes through the through groove and is connected to the cleaning ring.

[0011] Furthermore, scraper blades are staggered on the cleaning ring, and each scraper blade abuts against the inner wall of the cylindrical part.

[0012] Furthermore, the cleaning ring has a groove corresponding to the scraper, a T-shaped post is fixedly installed in the groove, the scraper is slidably connected to the T-shaped post, and an elastic element is provided between the groove and the scraper.

[0013] The cyclone dust collector with a spraying device proposed in this utility model has the following advantages:

[0014] In this invention, the cleaning ring is controlled to move up and down by a drive structure. The cleaning ring cleans the inner wall of the cylindrical part, preventing dust from adhering to the inner wall of the cylindrical part and ensuring that the cyclone dust collector can remove dust stably.

[0015] Secondly, in this invention, by setting up an annular pipe and a nozzle to spray liquid, the liquid mixes with the dust inside the cylindrical part and forms larger particles, which facilitates the separation of dust from the airflow. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a cyclone dust collector with a spraying device proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the dust collection part of this utility model;

[0018] Figure 3 This is an enlarged structural diagram of region A of this utility model;

[0019] Figure 4 This is a schematic diagram of the scraper plate of this utility model.

[0020] In the diagram: 1. Cylindrical section; 2. Dust collection section; 3. Air inlet pipe; 4. Air outlet pipe; 5. Waste discharge port; 6. Spray structure; 61. Ring pipe; 62. Nozzle; 63. Connecting plate; 7. Cleaning ring; 71. Scraper; 72. T-shaped column; 73. Elastic element; 8. Drive structure; 81. Lifting device; 82. Chain. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A cyclone dust collector with a spraying device includes a cylindrical part 1 and a dust collection part 2. An air inlet pipe 3 is provided on one side of the cylindrical part 1, and an air outlet pipe 4 is provided at the upper end of the cylindrical part 1. A waste discharge port 5 is provided on the dust collection part 2, and a control valve is connected to the waste discharge port 5. A spraying structure 6 is provided inside the cylindrical part 1. A water inlet pipe that cooperates with the spraying structure 6 is fixedly provided at the upper end of the cylindrical part 1. A cleaning ring 7 is provided inside the cylindrical part 1, and the spraying structure 6 is provided inside the cleaning ring 7. A drive structure 8 that cooperates with the cleaning ring 7 is provided on the cylindrical part 1.

[0023] In this invention, water mist is sprayed by the spray structure 6, which mixes with the dust in the airflow and forms larger particles inside the cylindrical part 1, facilitating the separation of dust from the airflow. The cleaning ring 7 is moved up and down at regular intervals by the drive structure 8, and the inner wall of the cylindrical part 1 is cleaned by the cleaning ring 7 to remove the attached dust. This prevents the internal space of the cylindrical part 1 from gradually shrinking over time, ensuring the time for dust removal in the cyclone dust collector, thereby stably removing dust from the airflow.

[0024] Furthermore, the spray structure 6 includes multiple annular pipes 61 disposed within the cleaning ring 7, each annular pipe 61 being provided with multiple nozzles 62, and each annular pipe 61 being connected to a water inlet pipe via a connecting pipe, the water inlet pipe being connected to an external water supply device.

[0025] Furthermore, in this embodiment, the spray structure 6 also includes a connecting plate 63 fixedly connected to multiple annular pipes 61. The connecting plate 63 is fixedly connected to the top of the cylindrical part 1, connecting multiple annular pipes 61 to form an integral structure, making the connection with the cylindrical part 1 more firm and stable.

[0026] It should be noted that in this embodiment, the drive structure 8 includes a rigid chain lifting device 81. A through groove is provided on the cylindrical part 1 to cooperate with the chain 82 of the rigid chain lifting device 81. The chain 82 passes through the through groove and is connected to the cleaning ring 7. The rigid chain lifting device is a publicly available device and will not be described in detail here. During assembly, the output end of the rigid chain lifting device 81, i.e., the chain 82, is connected to the cleaning ring 7. When the cleaning ring 7 moves down to clean the inner wall of the cylindrical part 1, the rigid chain lifting device 81 drives the chain 82 to move, generating a lifting force to push the cleaning ring 7 downward, thereby eliminating the resistance of the attached material to the cleaning ring 7. After cleaning, the cleaning ring 7 is pulled up and reset by the chain 82. In some embodiments, a linear reciprocating structure such as a cylinder or hydraulic rod can also be used to replace the rigid chain lifting device 81.

[0027] Furthermore, in some embodiments, scraper blades 71 are staggered on the cleaning ring 7, and the scraper blades 71 all abut against the inner wall of the cylindrical part 1. By setting the scraper blades 71, the dust attached to the inner wall of the cylindrical part 1 is scraped off to achieve the purpose of cleaning. In some embodiments, a sealing cover that cooperates with the rigid chain lifting device 81 is provided on the cylindrical part 1 to prevent exhaust gas leakage.

[0028] More specifically, in this embodiment, the cleaning ring 7 has a groove corresponding to the scraper 71, and a T-shaped post 72 is fixedly installed in the groove. The scraper 71 is slidably connected to the T-shaped post 72. An elastic element 73 is provided between the groove and the scraper 71. The T-shaped post 72 cooperates with the scraper 71 to prevent the scraper 71 from falling off. The elastic element 73 applies force to the scraper 71 so that it is tightly abutted against the inner wall of the cylindrical part 1 to facilitate scraping.

[0029] Working method: During operation, the exhaust gas mixed with dust is discharged into the cylindrical part 1 through the air inlet pipe 3. The annular pipe 61 and the nozzle 62 work together to spray liquid, which mixes with the dust in the cylindrical part 1 to form larger particles. The large particles fall down spirally along the cylindrical part 1, while the separated airflow is discharged along the air outlet pipe 4.

[0030] The rigid chain lifting device 81 drives the chain 82 to move, generating a lifting force to push the cleaning ring 7 downward, thereby eliminating the resistance of the attached material to the cleaning ring 7. During the downward movement, the scraper 71 scrapes off the dust attached to the inner wall of the cylindrical part 1, preventing dust accumulation and reducing the internal space of the cylindrical part 1.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cyclone having a spray device, comprising a cylindrical portion (1) and a dust collecting portion (2), characterized in that, The side of the cylinder part (1) is provided with an air inlet pipe (3), the upper end of the cylinder part (1) is provided with an air outlet pipe (4), the dust collecting part (2) is provided with a waste discharge port (5), the waste discharge port (5) is connected with a control valve, the cylinder part (1) is provided with a spraying structure (6), the upper end of the cylinder part (1) is fixedly provided with a water inlet pipe matched with the spraying structure (6), the inside of the cylinder part (1) is provided with a cleaning ring (7), the spraying structure (6) is arranged in the cleaning ring (7), and the cylinder part (1) is provided with a driving structure (8) matched with the cleaning ring (7).

2. A cyclone with a spray device according to claim 1, characterized in that: The spraying structure (6) comprises a plurality of annular pipes (61) arranged in the cleaning ring (7), and a plurality of spray heads (62) are arranged on the annular pipes (61).

3. A cyclone with a spray device according to claim 2, wherein: The spraying structure (6) further comprises a connecting plate (63) fixedly connected with the plurality of annular pipes (61), and the connecting plate (63) is fixedly connected with the top of the cylinder part (1).

4. A cyclone with a spray device according to claim 1, characterized in that: The driving structure (8) comprises a rigid chain jacking device (81), and the cylinder part (1) is provided with a through groove matched with a chain (82) of the rigid chain jacking device (81), the chain (82) passes through the through groove and is connected with the cleaning ring (7).

5. A cyclone with a spray device according to claim 4 wherein: The cleaning ring (7) is provided with a plurality of scraping plates (71) arranged alternately, and the scraping plates (71) are all in abutment with the inner wall of the cylinder part (1).

6. A cyclone with a spray device according to claim 5 wherein: The cleaning ring (7) is provided with a sliding groove corresponding to the scraping plate (71), a T-shaped column (72) is fixedly arranged in the sliding groove, the scraping plate (71) is in sliding connection with the T-shaped column (72), and an elastic member (73) is arranged between the sliding groove and the scraping plate (71).

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