A pneumatic impingement dedusting device

Abstract

The utility model relates to a kind of wind sending impact powder removal device.The powder removal device includes main body air pipe, one end of main body air pipe is equipped with air inlet, the other end is blind end, and main body air pipe is equipped with feeding port and air guide dust outlet.Main body air pipe is equipped with bulk material screen in the inner chamber in the lower of feeding port, and is equipped with powder removal net in the lower of air guide dust outlet, and main body air pipe is equipped with drop tube at powder removal net place.Molecular sieve to be removed powder enters from feeding port, and falls on bulk material screen and is dispersed, to avoid the accumulation of molecular sieve, and in this process, dust floating on the surface of molecular sieve will partially fall off.Molecular sieve that continues to move with wind will directly impact on powder removal net, dust floating on the surface of molecular sieve will fall off in the process of impact, and the dust that falls off is discharged from air guide dust outlet with wind, and molecular sieve falls into drop tube below under the action of gravity.Through the mode of wind blowing and impact, dust floating on the surface of molecular sieve particle can be effectively made to fall off, and the surface quality of molecular sieve particle is improved.

Description

Technical Field

[0001] This utility model relates to the field of molecular sieve technology, specifically to a pneumatic impact dust removal device for molecular sieves. Background Technology

[0002] Molecular sieves are synthetically produced hydrated aluminosilicates (zeolites) that sieve molecules, exhibiting molecule-sieving, adsorption, ion exchange, and catalytic effects. They possess high adsorption capacity, strong selectivity, and high-temperature resistance, making them widely used in organic and petrochemical industries. They are also excellent adsorbents for coal gas dehydration. Currently, they are receiving increasing attention in waste gas purification.

[0003] After sintering, molecular sieves develop a powdery residue on their surface. Furthermore, during the calcination and sieving processes, the molecular sieve particles continuously rub against each other, causing powder to fall off the particle surface. This dust, like static electricity, is difficult to remove; each sieving cycle generates friction and further dust production, consistently impacting product quality. Utility Model Content

[0004] The purpose of this invention is to provide a pneumatic impact dust removal device to solve the aforementioned technical problems in the prior art.

[0005] To achieve the above objectives, the present invention provides a pneumatic impact dust removal device with the following technical solution: A pneumatic impact dust removal device includes a main air duct, one end of which is provided with an air inlet and the other end is a blind end. A feeding port and an exhaust dust outlet are provided on the main air duct between the air inlet and the blind end. The feeding port is close to the air inlet, and the exhaust dust outlet is close to the blind end. A material distribution net is provided in the inner cavity of the main air duct below the feeding port to disperse the falling molecular sieves and prevent them from accumulating in the main air duct. A dust removal net is provided in the inner cavity of the main air duct below the exhaust dust outlet. A discharge pipe is provided on the main air duct at the dust removal net. Molecular sieves driven by the wind impact the dust removal net, and the detached dust is discharged from the exhaust dust outlet with the wind. The molecular sieves fall downward into the discharge pipe.

[0006] The discharge pipe is a "Y" shaped pipe. The two openings at the top of the "Y" shaped pipe are located on both sides of the dust removal screen, so that the dust entering the discharge pipe from one opening can be discharged with the wind from the other opening to re-enter the main air duct, and then discharged from the dust outlet.

[0007] The bulk material net is a perforated mesh plate, and the bulk material net is inclined from top to bottom in the direction of wind flow.

[0008] The lower end of the bulk material net is spaced apart from the inner wall of the main air duct below.

[0009] The dust removal mesh is vertically positioned below the dust outlet.

[0010] A storage bin is connected below the discharge pipe for storing the de-powdered molecular sieve.

[0011] The lower end of the storage silo is equipped with a discharge pipe, and a discharge valve is installed on the discharge pipe.

[0012] A buffer pad is provided on the side of the blind end of the main air duct to prevent the molecular sieve from being broken by impact.

[0013] The dust removal mesh is made of plastic.

[0014] The end of the main air duct with the air inlet has a flared structure, with the smaller diameter end of the flared end facing outward to form the air inlet.

[0015] The beneficial effects of this invention are as follows: The molecular sieve to be de-dusted enters through the feed inlet and falls directly onto the material distribution net for dispersion, avoiding accumulation of the molecular sieve. This facilitates the movement of the molecular sieve by the airflow entering from the air inlet, during which some of the dust floating on the surface of the molecular sieve will fall off. The molecular sieve, continuing to move with the airflow, will directly impact the dust removal net, causing further dust to fall off. The dislodged dust is then discharged from the dust outlet, and the molecular sieve falls into the discharge pipe below under gravity. This airflow-driven impact method effectively removes dust from the surface of the molecular sieve particles, improving their surface quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one embodiment of the pneumatic impact dust removal device of this utility model. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0018] It should be noted that, unless otherwise defined, the technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The use of "belonging" in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this invention.

[0019] An embodiment of the pneumatic impact dust removal device of this utility model is as follows: Figure 1As shown, the system includes a main duct 1, with an air inlet 3 at one end and a blind end 4 at the other. Specifically, the end of the main duct with the air inlet has a flared structure 2, with the smaller diameter end of the flared structure facing outward to form the air inlet 3. The flared structure serves to reduce wind speed and diffuse wind pressure, allowing the wind speed and pressure within the main duct to diffuse evenly. In this embodiment, one end of the main duct 1 is connected to a cylinder via a first flange. The cylinder has the aforementioned flared structure, and the smaller diameter of the cylinder forms the air inlet. The other end of the main duct 1 is connected to a blind plate via a second flange to form a blind end. A buffer pad 7 is provided on the side of the blind end within the inner cavity of the main duct 1 to prevent the molecular sieve from breaking upon impact.

[0020] A feeding port 5 and a dust exhaust port 6 are provided on the main air duct 1 between the air inlet 3 and the blind end 4. The feeding port 5 is close to the air inlet 3, and the dust exhaust port 6 is close to the blind end 4. A material distribution net 8 is provided in the inner cavity of the main air duct 1 below the feeding port 5 to disperse the falling molecular sieves and prevent them from accumulating in the main air duct. In this embodiment, the material distribution net 8 is a porous mesh plate, and the material distribution net 8 is inclined from top to bottom in the direction of airflow. The lower end of the material distribution net 8 is spaced apart from the inner wall of the main air duct below, which facilitates the wind to blow away the dispersed and sliding molecular sieve particles.

[0021] A dust removal screen 9 is installed below the exhaust port 6 within the inner cavity of the main air duct 1. In this embodiment, the dust removal screen 9 is vertically positioned below the exhaust port and fixedly connected to the inner wall of the main air duct. To avoid the molecular sieve breaking due to direct impact with the dust removal screen, a plastic mesh is used for the dust removal screen 9 in this embodiment. A discharge pipe 10 is installed on the main air duct. The molecular sieve, driven by the wind, impacts the dust removal screen 9, and the detached dust is discharged with the wind from the exhaust port. The molecular sieve falls downward into the discharge pipe 10.

[0022] In this embodiment, the discharge pipe 10 is a "Y"-shaped pipe. The two upper openings of the "Y"-shaped pipe are located on both sides of the dust removal screen 9. The two upper openings are the first opening 11 and the second opening 12. The first opening 11 is located in front of the dust removal screen 9, and the second opening 12 is located behind the dust removal screen 9. In this embodiment, the front-back direction refers to the airflow direction in the main air duct, with the air inlet in front. The "Y"-shaped pipe design allows dust entering the discharge pipe 10 through the first opening 11 to be discharged through the second opening 2 with the airflow, re-entering the main air duct 1, and then being discharged through the exhaust dust outlet 6. The lower end of the discharge pipe 10, namely the third discharge port 15, is connected to a storage bin 13 for storing the de-dusted molecular sieves. The lower end of the storage bin is equipped with a discharge pipe, and the discharge pipe is equipped with a discharge valve 14 for discharging the stored molecular sieves.

[0023] During operation, the molecular sieve material 16 to be de-dusted enters through the feed inlet 5 and falls onto the distribution net 8. The material is dispersed by the impact of the distribution net and propelled forward at a uniform high speed by the airflow. During this process, the material first impacts the de-dusting net 9, at which point some material is knocked into the discharge pipe and storage hopper. Material passing through the de-dusting net impacts the buffer pads at the blind plate and falls into the discharge pipe and storage hopper. This impact forces the floating powder on the molecular sieve particles to fall off instantly, achieving the purpose of de-dusting. During the process of the molecular sieve material falling to the bottom of the storage hopper, some dust is generated. This dust is carried away by the airflow entering through the first inlet before the de-dusting net and, along with the circulating air in the main duct, is drawn away by the exhaust fan at the dust outlet. The exhaust fan is connected to a dust collector to collect the dust, and the air entering the dust collector can be recycled after filtration. This novel pneumatic impact de-dust removal device can be widely used in industries involving the removal of particulate matter of a certain strength, and is not limited to molecular sieves. In practical applications, it demonstrates significant de-dust removal efficiency, high production efficiency, simple operation, and economic practicality, solving the problem of difficult-to-remove floating powder from products and gaining recognition in production.

[0024] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0026] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0027] In other embodiments of this utility model, provided that the molecular sieve does not break, the dust removal mesh can also be a metal mesh, and the buffer pad can be omitted at the blind end; provided that the molecular sieve does not accumulate in the main air duct when it falls from the feed port and can be blown backward smoothly by the wind, the material dispersing mesh can also be omitted.

Claims

1. A pneumatic impact dust removal device, characterized in that: The system includes a main duct with an air inlet at one end and a blind end at the other. A feeding port and a dust exhaust port are located between the air inlet and the blind end on the main duct, with the feeding port near the air inlet and the dust exhaust port near the blind end. A material distribution net is installed below the feeding port within the inner cavity of the main duct to disperse falling molecular sieves and prevent their accumulation within the duct. A dust removal net is installed below the dust exhaust port within the inner cavity of the main duct, and a discharge pipe is installed at the dust removal net. Molecular sieves driven by the wind impact the dust removal net, and the detached dust is discharged with the wind from the dust exhaust port, while the molecular sieves fall downwards into the discharge pipe.

2. The pneumatic impact dust removal device according to claim 1, characterized in that: The discharge pipe is a "Y" shaped pipe. The two openings at the top of the "Y" shaped pipe are located on both sides of the dust removal screen, so that the dust entering the discharge pipe from one opening can be discharged with the wind from the other opening to re-enter the main air duct, and then discharged from the dust outlet.

3. The pneumatic impact dust removal device according to claim 1, characterized in that: The bulk material net is a perforated mesh plate, and the bulk material net is inclined from top to bottom in the direction of wind flow.

4. The pneumatic impact dust removal device according to claim 3, characterized in that: The lower end of the bulk material net is spaced apart from the inner wall of the main air duct below.

5. The pneumatic impact dust removal device according to claim 1, characterized in that: The dust removal mesh is vertically positioned below the dust outlet.

6. The pneumatic impact dust removal device according to any one of claims 1-5, characterized in that: A storage bin is connected below the discharge pipe for storing the de-powdered molecular sieve.

7. The pneumatic impact dust removal device according to claim 6, characterized in that: The lower end of the storage silo is equipped with a discharge pipe, and a discharge valve is installed on the discharge pipe.

8. The pneumatic impact dust removal device according to claim 1, characterized in that: A buffer pad is provided on the side of the blind end of the main air duct to prevent the molecular sieve from being broken by impact.

9. The pneumatic impact dust removal device according to claim 1, characterized in that: The dust removal mesh is made of plastic.

10. The pneumatic impact dust removal device according to claim 1, characterized in that: The end of the main air duct with the air inlet has a flared structure, with the smaller diameter end of the flared end facing outward to form the air inlet.

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