Low-noise dust remover

Abstract

The utility model discloses a low-noise dust remover, which relates to the technical field of dust removers, and comprises a dust remover body and a support, the right surface of the dust remover body is fixedly connected with a fixing frame and is provided with an air inlet, the upper surface of the fixing frame is fixedly connected with a fan, and the air inlet is provided with an air outlet. A fixed plate is fixedly connected in the dust remover body, when dust-containing gas passes through the filter bag, dust is intercepted by the filter bag, clean gas continuously flows towards the outlet direction through pores of the filter bag, the dust gradually gathers on the surface of the filter bag to form a dust layer along with the continuous proceeding of the filtering process, and when the dust on the surface of the filter bag gathers to a certain degree, the dust on the surface of the filter bag is discharged. The fan is started to enable conveyed airflow to pass through the first connecting pipe and the second connecting pipe, then compressed air is sprayed out at a high speed through the spray head, strong airflow impact is formed, the high-speed airflow directly acts on the surface of the filter bag, an attached dust layer is blown off, and the good air permeability of the filter bag is recovered.

Description

Technical Field

[0001] This utility model relates to the field of dust collector technology, and in particular to a low-noise dust collector. Background Technology

[0002] In industrial production and environmental protection, dust collectors are key equipment for controlling dust pollution and purifying air, and are widely used in many industries such as steel, chemical, power, and building materials. The aluminum smelting and forming industry occupies an important position in the modern industrial system. Its production process generates various byproducts. When aluminum ash is dumped, the nitrogen oxides it contains are chemically unstable and readily undergo chemical reactions, producing a series of flammable and harmful irritating gases such as sulfides, ammonia, methane, chlorides, and fluorides. These gases, when released into the atmosphere, cause air pollution. In practical applications, dust collectors typically require the following technologies:

[0003] 1. Filtration unit: such as the filter bag in a baghouse dust collector, whose material has a certain degree of air permeability and dust collection ability, blocks dust on the surface of the filter bag through physical interception, thereby achieving gas-solid separation.

[0004] 2. Air intake system: including air inlet and connecting pipes, responsible for introducing dust-laden gas into the dust collector. Its structure and size need to be designed according to parameters such as the processing air volume to ensure that the airflow can enter smoothly.

[0005] 3. Dust removal system: Common dust removal methods in bag filters include mechanical vibration cleaning and pulse jet cleaning, which are used to remove dust accumulated on the surface of the filter bags during the filtration process in order to maintain the filtration performance of the filter bags.

[0006] 4. Dust collection device: This is generally the ash hopper at the bottom of the dust collector, used to collect the dust cleaned off the filter bags and discharge it periodically through the ash discharge device.

[0007] Currently, to improve the performance and applicability of dust collectors, manufacturers have adopted various technologies and design solutions. Some manufacturers have optimized the structural design of dust collectors, adopting a large-scale and modular design concept to increase the air volume handled and the ease of installation. Other manufacturers have focused on the research and development of filter bag materials, developing filter bag materials with special properties such as high temperature resistance, corrosion resistance, and antistatic properties to meet the needs of different working conditions. In addition, some manufacturers have improved the dust removal system, adopting more advanced control technology to achieve automated and precise dust removal.

[0008] However, the above-mentioned implementation methods still have the following problems. In terms of air intake, traditional air inlet designs often cannot effectively guide the airflow, resulting in uneven airflow distribution and unstable flow velocity inside the dust collector. This can easily cause excessive filtration load on local filter bags, reduce their service life, affect dust removal efficiency, and may also cause airflow turbulence inside the equipment, generating significant noise. In terms of dust removal, some dust removal methods may result in incomplete cleaning or significant damage to the filter bags. For example, mechanical vibration cleaning may cause filter bag fatigue damage, affecting the overall dust removal effect and stable operation of the equipment. To address this problem, this application proposes a solution: a dust collector with a jet nozzle for dust removal above the filter bags and a special airflow guiding device at the air inlet. This dust collector uses a special airflow guiding device to ensure uniform and stable air intake and utilizes a rationally designed jet nozzle to achieve efficient dust removal, thereby improving dust removal efficiency, reducing equipment energy consumption, extending filter bag service life, reducing noise during equipment operation, and improving overall performance and stability. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a low-noise dust collector that solves the problems of uneven airflow distribution and unstable flow velocity at traditional air inlets, which can easily lead to excessive filtration load on local filter bags, reduce filter bag lifespan, affect dust removal efficiency, and may also cause airflow turbulence inside the equipment, generating significant noise. In terms of dust removal, some dust removal methods have the problem of incomplete cleaning or significant damage to filter bags.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A low-noise dust collector includes a dust collector body and a support frame. The dust collector further includes: a fixed frame with an air inlet fixedly connected to the right surface of the dust collector body; a fan fixedly connected to the upper surface of the fixed frame; a fixed plate fixedly connected inside the dust collector body; a set of filter bags fixedly connected inside the fixed plate; a set of fixed pipes fixedly connected above the fixed plate; a dust outlet provided on the lower surface of the dust collector body; and a set of circular grooves penetrating the upper surface of the fixed plate, each of the circular grooves being fixedly connected to a set of filter bags.

[0012] Preferably, a set of nozzles is fixedly connected to the lower surface of each of the fixed pipes, and a connecting pipe is fixedly connected to the output shaft of the fan, the connecting pipe being movably sleeved with the dust collector body.

[0013] Preferably, a second connecting pipe is fixedly connected to the left surface of the first connecting pipe, the second connecting pipe is connected to a set of fixed pipes, a guide plate is fixedly connected inside the air inlet, and a set of holes are opened on the surface of the guide plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. As the filtration process continues, dust gradually accumulates on the surface of the filter bag, forming a dust layer. When the dust on the surface of the filter bag reaches a certain level, the fan is started to deliver the airflow through connecting pipe one and connecting pipe two, and then through the nozzle to spray compressed air at high speed, forming a powerful airflow impact. These high-speed airflows act directly on the surface of the filter bag, blowing off the attached dust layer and restoring the filter bag to good air permeability. The clean gas after filtration and dust removal continues to flow towards the air outlet of the dust collector body and is finally discharged into the atmosphere through the air outlet.

[0016] 2. When dust-laden gas enters through the inlet, the special structure of the inlet begins to function, guiding and rectifying the incoming airflow. The inlet has a gradually expanding design, which gradually increases the cross-sectional area of ​​the airflow, reduces the flow velocity, and increases the pressure, allowing the airflow to enter more smoothly. At this time, the smooth airflow is further divided into multiple fine airflow streams by the guide plate, which then allows it to enter the dust collector body stably, reducing the noise generated by the airflow impact. The support frame is made of rubber at the contact point with the ground to absorb the vibration generated during the operation of the device, thereby reducing the noise generated by the vibration transmitted to the surrounding environment. Attached Figure Description

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] Figure 1 This is an overall structural diagram of the present invention;

[0019] Figure 2 This is a structural diagram of the fixing plate of this utility model;

[0020] Figure 3 This is a structural diagram of the filter bag of this utility model;

[0021] Figure 4 This is a structural diagram of the air inlet of this utility model.

[0022] Legend: 1. Dust collector body; 2. Support frame; 3. Fan; 4. Fixing frame; 5. Air inlet; 6. Dust outlet; 7. Connecting pipe one; 8. Connecting pipe two; 9. Fixing plate; 10. Filter bag; 11. Fixing pipe; 12. Nozzle; 13. Circular groove; 14. Guide plate; 15. Hole. Detailed Implementation

[0023] This application provides a low-noise dust collector that effectively solves the problems of uneven airflow distribution and unstable flow velocity at traditional air inlets, which can easily lead to excessive local filter bag filtration load, reduced filter bag lifespan, and reduced dust removal efficiency. Furthermore, it can cause airflow turbulence within the equipment, generating significant noise. In terms of dust removal, some methods suffer from incomplete cleaning or significant damage to the filter bags. This dust collector utilizes a special flow guiding device to ensure uniform and stable airflow and a rationally designed jet nozzle to achieve efficient dust removal, thereby improving dust removal efficiency, reducing equipment energy consumption, extending filter bag lifespan, reducing noise during equipment operation, and enhancing overall performance and stability.

[0024] Example 1

[0025] The technical solution in this application effectively solves the problems of uneven airflow distribution and unstable flow velocity at traditional air inlets, which can easily lead to excessive local filter bag filtration load, reduce filter bag lifespan, affect dust removal efficiency, and may also cause airflow turbulence inside the equipment, generating significant noise. Regarding dust removal, some methods suffer from incomplete cleaning or significant damage to the filter bags. The overall approach is as follows:

[0026] To address the problems existing in the prior art, this utility model provides a low-noise dust collector, including a dust collector body 1 and a support 2. The low-noise dust collector further includes: a fixing frame 4 fixedly connected to the right surface of the dust collector body 1 and having an air inlet 5; a fan 3 fixedly connected to the upper surface of the fixing frame 4; a fixing plate 9 fixedly connected inside the dust collector body 1; a set of filter bags 10 fixedly connected inside the fixing plate 9; a set of fixing pipes 11 above the fixing plate 9, all of which are fixedly connected to the dust collector body 1; a dust outlet 6 on the lower surface of the dust collector body 1; and a set of circular grooves 13 penetrating the upper surface of the fixing plate 9, each of which is fixedly connected to a set of filter bags 10. During operation, dust-laden gas is transported to the air inlet 5 of the dust collector body 1 through the pipes. After passing through the inlet 5, the gas enters the filter bag 10 area of ​​the dust collector body 1. When the dust-laden gas passes through the filter bag 10, the dust is intercepted by the filter bag 10, while the clean gas continues to flow towards the outlet through the pores of the filter bag 10. As the filtration process continues, the dust gradually accumulates on the surface of the filter bag 10 to form a dust layer. When the dust on the surface of the filter bag 10 accumulates to a certain extent, the fan 3 is started to deliver the airflow through the connecting pipe 7 and the connecting pipe 8 and then through the nozzle 12 to spray compressed air at high speed, forming a strong airflow impact. These high-speed airflows act directly on the surface of the filter bag 10, blowing off the attached dust layer and restoring the filter bag 10 to good air permeability. The clean gas after being filtered and cleaned by the filter bag 10 continues to flow towards the outlet of the dust collector body 1 and is finally discharged into the atmosphere through the outlet.

[0027] Each fixed pipe 11 has a set of nozzles 12 fixedly connected to its lower surface. The output shaft of the fan 3 is fixedly connected to a connecting pipe 7. The connecting pipe 7 is movably sleeved with the dust collector body 1. When the dust-laden gas enters through the air inlet 5, the special structure of the air inlet 5 begins to function, guiding and rectifying the incoming airflow. The air inlet 5 is designed as a gradually expanding type, which gradually increases the cross-sectional area of ​​the airflow, reduces the flow velocity, and increases the pressure, allowing the airflow to enter more smoothly.

[0028] Connecting pipe 8 is fixedly connected to the left surface of connecting pipe 1 7. Connecting pipe 8 is connected to a set of fixed pipes 11. A guide plate 14 is fixedly connected inside the air inlet 5. A set of holes 15 are opened on the surface of the guide plate 14. The stable airflow is divided into multiple fine airflow streams by the guide plate 14, so that it can enter the dust collector body 1 stably, reducing the noise caused by airflow impact. The end of the bracket 2 that contacts the ground is made of rubber to absorb the vibration generated during the operation of the device, thereby reducing the noise caused by the vibration transmitted to the surrounding environment.

[0029] Working principle:

[0030] During operation, dust-laden gas is transported through a pipeline to the inlet 5 of the dust collector body 1. After passing through the inlet 5, the gas enters the filter bag 10 area of ​​the dust collector body 1. As the dust-laden gas passes through the filter bags 10, the dust is intercepted, while the clean gas continues to flow towards the outlet through the pores of the filter bags 10. As the filtration process continues, dust gradually accumulates on the surface of the filter bags 10, forming a dust layer. When the dust on the surface of the filter bags 10 reaches a certain level, the fan 3 is activated to direct the airflow through connecting pipe 7 and connecting pipe 8, and then through nozzle 12 to spray compressed air at high speed, forming a powerful airflow impact. This high-speed airflow directly acts on the surface of the filter bags 10, blowing off the attached dust layer and restoring the filter bags 10 to good condition. The clean gas, after being filtered and cleaned by the filter bag 10, continues to flow towards the outlet of the dust collector body 1 and is eventually discharged into the atmosphere through the outlet. When the dust-laden gas enters through the inlet 5, the special structure of the inlet 5 begins to function, guiding and rectifying the incoming airflow. The inlet 5 has a gradually expanding design, which gradually increases the cross-sectional area of ​​the airflow, reduces the flow velocity, and increases the pressure, allowing the airflow to enter more smoothly. At this time, the smooth airflow is divided into multiple fine airflow bundles by the guide plate 14, which then allows it to enter the dust collector body 1 stably, reducing the noise caused by the airflow impact. The contact end of the support 2 with the ground is made of rubber to absorb the vibration generated during the operation of the device, thereby reducing the noise caused by the vibration transmitted to the surrounding environment.

[0031] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A low-noise dust collector, comprising a dust collector body (1) and a support frame (2), characterized in that, The low-noise dust collector further includes: a fixed frame (4) is fixedly connected to the right surface of the dust collector body (1) and an air inlet (5) is provided; a fan (3) is fixedly connected to the upper surface of the fixed frame (4); and a fixed plate (9) is fixedly connected inside the dust collector body (1). Among them, a set of filter bags (10) are fixedly connected inside the fixed plate (9), and a set of fixed pipes (11) are provided above the fixed plate (9). All of the fixed pipes (11) are fixedly connected to the dust collector body (1). A dust outlet (6) is provided on the lower surface of the dust collector body (1). A guide plate (14) is fixedly connected inside the air inlet (5). The guide plate (14) has a set of holes (15) on its surface. The air intake (5) is designed with a gradually expanding shape.

2. The low-noise dust collector as described in claim 1, characterized in that: A set of circular grooves (13) are provided through the upper surface of the fixing plate (9); Among them, a set of circular grooves (13) are fixedly connected to a set of filter bags (10).

3. The low-noise dust collector as described in claim 1, characterized in that: A set of nozzles (12) are fixedly connected to the lower surface of each of the fixed tubes (11).

4. A low-noise dust collector as described in claim 1, characterized in that: The output shaft of the fan (3) is fixedly connected to a connecting pipe (7); The connecting pipe (7) is movably connected to the dust collector body (1).

5. A low-noise dust collector as described in claim 4, characterized in that: Connecting pipe 2 (8) is fixedly connected to the left surface of connecting pipe 1 (7); The connecting pipe 2 (8) is connected to a set of fixed pipes (11).

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