Replacement-free active separation dust removal device

Abstract

The utility model discloses a replacement-free active separation dust removal device, which comprises an impeller component, a dust removal component, a dust removal component, a dust removal component, a dust removal component and a dust removal component, and is characterized in that the impeller component is used for providing centrifugal force for dust to realize separation of dust from gas through centrifugal force generated by rotating airflow; the impeller assembly is rotationally assembled in one end of the air pipe assembly, and the air pipe assembly is used for guiding dust; and the air outlet assembly is installed at the other end of the air pipe assembly, and the air outlet assembly is used for separating the dust from the airflow. By means of the arrangement mode that the impeller assembly and the air outlet assembly are matched, air rotates under the action of the impeller assembly through centrifugal rotation of the impeller assembly, and dust particles move forwards along the pipe wall of the air pipe assembly under the action of centrifugal force till being discharged through the air outlet assembly. And the separated clean air is discharged from the tail end of the air outlet assembly to finish the whole dust removal process, so that the cost for replacing a primary filter in the prior art is saved.

Description

Technical Field

[0001] This utility model relates to the field of separation and dust removal devices, and in particular to an active separation and dust removal device that does not require replacement. Background Technology

[0002] Pre-filters, also known as coarse filters, are the most basic dust filtration devices in the filter family, generally referring to filters with filtration efficiencies between G1 and G4 @ EN779-2012. Pre-filters are the first line of defense in air purification equipment, primarily used to filter large particles of dust, hair, fibers, and other impurities from the air. Their working principle is to capture particulate matter in the air through a filter screen, ensuring the efficient operation of subsequent purification equipment. Pre-filters are widely used in various industries; it can be said that pre-filters are present in almost any scenario involving air filtration.

[0003] The pre-filter is the first line of defense in air purification equipment, mainly used to filter large particles of dust, hair, fibers, and other impurities from the air. Therefore, it reaches the end of its lifespan very quickly, requiring replacement every 1-2 months in harsh environments, and generally every three months even in normal environments. Replacing the filter involves not only the cost of the filter itself, but also the labor cost for replacement and the cost of related equipment, all of which constitute a considerable expense.

[0004] According to relevant policies and regulations, replaced pre-filters are considered industrial solid waste and therefore require disposal by qualified waste treatment companies. Failure to dispose of them properly can easily lead to secondary pollution. Even metal mesh pre-filters, which constitute a significant portion of pre-filters, are claimed by manufacturers to be washable and reusable; however, the wastewater generated during the cleaning process of these dirty filters is still a form of pollution. Utility Model Content

[0005] The purpose of this invention is to provide an active separation dust removal device that does not require replacement, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a replacement-free active separation dust removal device, comprising:

[0007] An impeller assembly for providing centrifugal force to dust to separate dust from the gas by centrifugal force generated by rotating airflow;

[0008] A duct assembly, wherein the impeller assembly is rotatably mounted inside one end of the duct assembly, and the duct assembly is used to guide dust.

[0009] An air outlet assembly is installed at the other end of the duct assembly and is used to separate dust from airflow.

[0010] Preferably, the impeller assembly includes:

[0011] The impeller main shaft is rotatably mounted inside the duct assembly via a bracket.

[0012] Impeller blades, a plurality of said impeller blades are mounted obliquely in a ring array on the outside of the impeller main shaft.

[0013] Preferably, the outer side of the impeller blade is provided with an outer edge, and the outer edge of the blade is in contact with the inner wall of the main air duct.

[0014] Preferably, the duct assembly includes:

[0015] The main air duct is a tubular structure with openings at both ends;

[0016] A hexagonal baffle is installed on the outside of the main air duct.

[0017] Preferably, one end of the main air duct is provided with an air inlet end face, and the other end of the main air duct is provided with an air outlet end face.

[0018] Preferably, the air outlet assembly includes:

[0019] Tailpipe, which is movably sleeved inside the other end of the main air duct, and an air inlet port is provided at one end of the tailpipe;

[0020] A wind deflector is fixedly sleeved on the outside of the tailpipe and supported by the gap between the tailpipe and the main air pipe. A dust outlet is provided on the wind deflector.

[0021] An air outlet duct is connected to the other end of the tailpipe, and an air outlet port is provided at the end of the air outlet duct that is away from the air duct assembly.

[0022] A hexagonal baffle is connected to the air outlet duct.

[0023] The technical effects and advantages of this utility model are as follows:

[0024] This invention utilizes a combination of an impeller assembly and an air outlet assembly. The centrifugal rotation of the impeller assembly causes the air to rotate, and dust particles, under centrifugal force, move forward along the duct wall until they are discharged through the air outlet assembly. The separated clean air is then discharged from the end of the air outlet assembly, completing the entire dust removal process. Therefore, this device effectively separates dust particles from dirty air and discharges clean air. It eliminates the need for periodic replacement, saving the cost of replacing the pre-filter and consequently reducing labor costs associated with filter replacement. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a front structural diagram of the present utility model.

[0027] Figure 3 This is one of the exploded structural diagrams of this utility model.

[0028] Figure 4 This is the second schematic diagram of the exploded structure of this utility model.

[0029] Figure 5 This is a schematic diagram of the air outlet component of this utility model.

[0030] Figure 6 This is a schematic diagram of the air rotation trajectory structure of this utility model.

[0031] Figure 7 This is a schematic diagram of the particle separation structure under centripetal force according to this utility model.

[0032] Figure 8 This is a schematic diagram of the particle precipitation trajectory structure of this utility model.

[0033] Figure 9 This is a schematic diagram of the structure of multiple replacement-free active dust removal filter modules of this utility model.

[0034] Figure 10 This is a schematic diagram of the assembly state of the active dust removal filter module and the dust exhaust fan of this utility model, which do not require replacement.

[0035] In the diagram: 1. Impeller assembly; 11. Impeller main shaft; 12. Impeller blade; 121. Blade outer edge; 2. Duct assembly; 21. Main duct; 22. Hexagonal baffle; 201. Air inlet end face; 202. Air outlet end face; 3. Air outlet assembly; 31. Tailpipe; 32. Wind deflector ring; 321. Dust outlet; 33. Air outlet duct; 34. Hexagonal baffle; 301. Air inlet port; 302. Air outlet port. Detailed Implementation

[0036] 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.

[0037] This utility model provides, for example Figure 1-10The illustrated maintenance-free active dust removal device includes: an impeller assembly 1, which provides centrifugal force to the dust, thereby separating the dust from the gas through the centrifugal force generated by the rotating airflow; a duct assembly 2, in which the impeller assembly 1 is rotatably mounted inside one end of the duct assembly 2, and the duct assembly 2 is used to guide the dust; and an outlet assembly 3, installed at the other end of the duct assembly 2, and used to separate the dust from the airflow. Air enters through the inlet under the action of a fan, and as it passes through the maintenance-free active dust removal device, the centrifugal rotation of the impeller assembly 1 causes the air to be separated from the gas by the centrifugal force generated by the impeller assembly 1. As the air duct rotates, dust particles, under centrifugal force, move forward along the wall of the duct assembly 2 until they are discharged through the outlet assembly 3. The separated clean air is then discharged from the end of the outlet assembly 3, completing the entire dust removal process. This system utilizes the principle of a cyclone dust collector, effectively separating dust particles from dirty air and discharging clean air. This device does not require periodic replacement, saving the cost of replacing the pre-filter and consequently reducing labor costs associated with filter replacement. During operation, dust-laden gas enters the duct assembly 2 tangentially through the inlet end face 201, forming a rotating airflow. During rotation, dust particles are subjected to centrifugal force and thrown against the inner wall of the main duct 21. The magnitude of centrifugal force is directly proportional to the tangential velocity of the airflow. The faster the rotation speed, the easier it is for dust particles to be separated. Dust particles that reach the inner wall of the main air duct 21 move downward along the wall under the combined action of gravity and airflow, and are discharged through the dust outlet 321, achieving the initial separation of dust and gas. The purified gas forms an inner vortex and is finally discharged from the air outlet assembly 3, completing the entire dust removal process.

[0038] The impeller assembly 1 includes: an impeller main shaft 11, which is rotatably mounted inside the duct assembly 2 via a bracket; and impeller blades 12, with multiple impeller blades 12 arranged in a ring array and obliquely mounted outside the impeller main shaft 11. The outer side of each impeller blade 12 has an outer edge 121, and the outer edge 121 is in contact with the inner wall of the main duct 21. Figure 6 As shown, dirty air containing dust particles enters through the air inlet end face 201. The air first encounters the impeller assembly 1. Since there are 6 impeller blades 12 on the impeller main shaft 11 that rotate downward along the impeller main shaft 11, the air enters the main air duct 21 under the action of the 6 impeller blades 12 and rotates along the rotation angle of the impeller blades 12, forming a rotating backward airflow inside the entire main air duct 21.

[0039] The duct assembly 2 includes: a main duct 21, which is a tubular structure open at both ends, with an air inlet end face 201 at one end and an air outlet end face 202 at the other end; and a hexagonal baffle 22, which is installed on the outside of the main duct 21. Figure 7 As shown, the dirty air entering the main duct 21 rotates along its centerline within the duct, propelling it towards the outlet face 202 of the main duct 21 under the influence of airflow. During this rotational movement, dust particles carried in the airflow undergo centrifugal motion within the duct. Due to their larger mass, larger dust particles are more affected by centrifugal force. Therefore, under this force, dust particles gradually adhere to the duct wall and spiral forward along the inner wall of the main duct 21. Larger dust particles are separated earlier.

[0040] The air outlet assembly 3 includes: a tailpipe 31, which is movably fitted inside the other end of the main air duct 21, and has an air inlet port 301 at one end; and a wind deflector 32, which is fixedly fitted outside the tailpipe 31 and supported by the gap between the tailpipe 31 and the main air duct 21. The wind deflector 32 has a dust outlet 321 and a notch that is diagonally opened along the direction of airflow rotation. This notch is the dust outlet 321. During the rotation and forward movement of the airflow, dust particles are subjected to centrifugal force. The airflow moves downwards towards the pipe wall, eventually reaching the front of the baffle ring 32 under the push of the airflow. At this point, a gap is needed to discharge the accumulated dust particles. For smooth dust discharge, this gap should continue in the direction of airflow rotation. The outlet pipe 33 connects to the other end of the tail pipe 31, facilitating the discharge of clean gas. An air outlet port 302 is provided at the end of the outlet pipe 33 furthest from the duct assembly 2. A hexagonal baffle 34 connects to the outlet pipe 33, facilitating dust blocking. Figure 8 As shown, dust particles undergo centrifugal motion around the centerline while moving towards the outlet end face 202 under the influence of airflow. Therefore, dust particles move along trajectory b under centrifugal force, while clean air, after dust separation, moves along trajectory a. At a sufficiently high rotational speed, all dust particles will eventually adhere to the inner wall of the main duct 21 under centripetal force. As dust accumulates on the duct wall, and under the influence of wind, all dust will reach the outlet end face 202 and be blocked by the baffle ring 32 on the air outlet assembly 3. The baffle ring 32 has a notch for a dust outlet 321. The accumulated dust particles are discharged from the dust outlet 321 under the influence of wind, while clean air enters the outlet duct 31 through the inlet port 301 and is then discharged.

[0041] The dust removal efficiency of the replacement-free active dust collector is affected by several factors, including the number of impeller blades 12 in the impeller assembly 1, the rotation angle of the impeller blades 12, the depth of the impeller assembly 1, the diameter and length of the duct assembly 2, the size and direction of the air inlet port 301 of the air outlet assembly 3, and the airflow velocity. Appropriate airflow velocity and the length of the main duct 21 help improve dust removal efficiency, but excessively high velocities increase pressure loss. Therefore, adjustments can be made according to the customer's on-site operating environment, such as... Figure 9 As shown, in practical applications, multiple replacement-free active dust filters are mounted on a mounting bracket. Therefore, they can be made into standard modules or non-standard sizes for flexible application. Figure 10 As shown, multiple replacement-free active dust removal filter modules can be used with a dust exhaust fan to achieve continuous 24-hour operation. Once dust particles are separated, they are directly discharged by the exhaust fan; alternatively, a dust collector can be installed at the exhaust fan inlet.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A replacement-free active separation dust removal device, characterized by, include: Impeller assembly (1), the impeller assembly (1) is used to provide centrifugal force to dust so as to separate dust from gas by centrifugal force generated by rotating airflow; Duct assembly (2), wherein the impeller assembly (1) is rotatably mounted inside one end of the duct assembly (2), and the duct assembly (2) is used to guide dust; An air outlet assembly (3) is installed at the other end of the duct assembly (2) and is used to separate dust from airflow.

2. A replacement-free active separation dust removal device according to claim 1, characterized in that, The impeller assembly (1) includes: Impeller main shaft (11), which is rotatably mounted inside the duct assembly (2) via a bracket; Impeller blades (12), a plurality of said impeller blades (12) are obliquely mounted in a ring array on the outside of the impeller main shaft (11).

3. A replacement-free active separation dust removal device according to claim 2, characterized in that, The outer side of the impeller blade (12) is provided with an outer edge (121), and the outer edge (121) of the blade is in contact with the inner wall of the main air duct (21).

4. The replacement-free active separation dust removal device according to claim 1, characterized in that, The duct assembly (2) includes: The main air duct (21) is a tubular structure with openings at both ends; A hexagonal baffle (22) is installed on the outside of the main air duct (21).

5. A replacement-free active separation dust removal device according to claim 4, characterized in that One end of the main air duct (21) is provided with an air inlet end face (201), and the other end of the main air duct (21) is provided with an air outlet end face (202).

6. The replacement-free active separation dust removal device according to claim 1, characterized in that, The air outlet assembly (3) includes: Tailpipe (31), which is movably sleeved inside the other end of the main air duct (21), and an air inlet port (301) is provided at one end of the tailpipe (31); A wind deflector (32) is fixedly sleeved on the outside of the tail pipe (31) and supported in the gap between the tail pipe (31) and the main air pipe (21). A dust outlet (321) is provided on the wind deflector (32). An air outlet pipe (33) is connected to the other end of the tail pipe (31), and an air outlet port (302) is provided at the end of the air outlet pipe (33) away from the air duct assembly (2); A hexagonal baffle (34) is connected to an air outlet pipe (33).

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