Silencing device of dust collector

Abstract

The utility model relates to the technical field of silencing technologies, in particular to a dust collector silencing device which comprises a dust collector shell, a fan chamber is arranged in the middle of an inner cavity of the dust collector shell, a mounting transverse plate is fixed to the top of the fan chamber, and ventilation openings are formed in the two sides of a silencing vertical frame in a penetrating mode. The silencing floor stand is in a # shape, the interior of the silencing partition plate is filled with silencing sponge, and filtering holes are formed in the side wall of the silencing partition plate in a penetrating mode; the upper side of the silencing vertical frame is fixedly covered with a silencing cover; the noise reduction device has the beneficial effects that the noise reduction vertical frame is fixed to the upper side of the mounting transverse plate, the multiple noise reduction partition plates distributed at equal intervals are fixed to the two sides of the noise reduction vertical frame, the ventilation openings are formed in the two sides of the noise reduction vertical frame in a penetrating mode, and the noise reduction partition plates are parallel to the air flowing direction, so that noise generated during working of the fan can be absorbed; and meanwhile, the sound insulation effect can be further improved through the arrangement of the silencing cover, and the noise is prevented from being directly discharged to the surrounding environment.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction technology, specifically a noise reduction device for a dust collector. Background Technology

[0002] A dust collector is a dust collection device that is used in conjunction with a powder spraying booth. When the fan inside the dust collector is working, it drives the airflow and, together with the filter structure such as bag filters, collects the dust.

[0003] In existing technology, the fan is usually installed at the upper air inlet of the dust collector, and sound-absorbing panels or sound-absorbing cotton are installed around the fan to reduce the noise generated when the fan is working.

[0004] However, currently, since the air inlet of the fan is inevitably connected to the external environment, the vibration noise generated when the fan is working, as well as the airflow noise generated when the air flows, will diffuse into the surrounding environment from the air inlet, resulting in serious noise pollution. Therefore, this utility model proposes a dust collector silencing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a dust collector noise reduction device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dust collector silencing device, the silencing device comprising:

[0007] The dust collector housing has a fan chamber in the middle of its inner cavity. A mounting plate is fixed to the top of the fan chamber. A sound-absorbing frame is fixed to the upper surface of the mounting plate. Ventilation openings are provided on both sides of the sound-absorbing frame.

[0008] The sound-absorbing frame is shaped like a "well" and multiple sound-absorbing baffles are fixed on both sides of the sound-absorbing frame at equal intervals. The sound-absorbing baffles are filled with sound-absorbing sponge and have filter holes through the side walls.

[0009] The upper side of the sound-absorbing frame is fixedly covered with a sound-absorbing cover, which is a double-layer structure and has an internal vacuum.

[0010] Preferably, the inner wall of the dust collector housing is provided with sound-absorbing cotton, and the upper part of the outer wall of the dust collector housing is provided with a suction port, and there are multiple suction ports, each corresponding to a multiple ventilation opening.

[0011] Preferably, the sound-absorbing frame has a collection compartment in the middle, and the mounting plate has an air inlet through the middle, with the air inlet corresponding to the collection compartment.

[0012] Preferably, a flow guiding block is fixedly arranged on the lower surface of the sound insulation cover. The flow guiding block is located in the inner cavity of the collection bin, and the cross section of the flow guiding block is in an inverted "V" shape.

[0013] Preferably, the sound insulation cover includes a top cover and a bottom cover, and there is a gap between the two. A flexible gasket in the shape of a "square" is arranged at the edge between the top cover and the bottom cover. The top cover and the bottom cover are fixedly connected by screws and the flexible gasket is compressed.

[0014] Preferably, a pulse chamber is arranged at the bottom of the inner cavity of the dust collector housing. A dust collection chamber is installed at the lower end of the dust collector housing, and a cloth bag filter cartridge is arranged at the opening end of the dust collection chamber.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, a sound insulation vertical frame is fixed on the upper side of the installation cross plate. The sound insulation vertical frame is in the shape of a "well", and a plurality of equally spaced sound insulation partitions are fixed on both sides of the sound insulation vertical frame. Ventilation openings are formed through both sides of the sound insulation vertical frame. A sound insulation cover is fixed on the upper part of the sound insulation vertical frame. The sound insulation cover is a double-layer vacuum structure. When the fan operates, the outside air is first horizontally sucked into the collection bin through the ventilation openings, and then sucked by the fan from top to bottom. The sound insulation partitions are parallel to the air flow direction, which can not only absorb the noise generated by the operation of the fan, but also reduce the noise generated by air flow. At the same time, the setting of the sound insulation cover can further improve the sound insulation effect and prevent the noise from being directly discharged into the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a sectional schematic diagram of the structure of the sound insulation vertical frame of the present utility model;

[0019] Figure 3 is a three-dimensional schematic diagram of the structure of the sound insulation vertical frame of the present utility model;

[0020] Figure 4 is an internal schematic diagram of the structure of the sound insulation partition of the present utility model;

[0021] Figure 5 is an internal schematic diagram of the structure of the sound insulation cover of the present utility model.

[0022] In the figure: 1. Dust collector housing; 11. Air suction port; 12. Dust collection chamber; 2. Pulse chamber; 3. Fan chamber; 4. Installation cross plate; 41. Air inlet; 5. Sound insulation vertical frame; 51. Collection bin; 52. Ventilation opening; 6. Sound insulation partition; 61. Filter hole; 62. Sound insulation sponge; 7. Sound insulation cover; 71. Top cover; 72. Bottom cover; 73. Flexible gasket; 8. Flow guiding block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Example 1, please refer to Figures 1-5 This utility model provides a technical solution: a dust collector silencing device, the silencing device including: a dust collector housing 1.

[0025] Specifically, a fan chamber 3 is located in the middle of the inner cavity of the dust collector housing 1. The fan chamber 3 drives air to flow from top to bottom. A mounting plate 4 is fixed to the top of the fan chamber 3, and the edge of the mounting plate 4 is fixedly connected to the inner wall of the dust collector housing 1. A sound-absorbing bracket 5 is fixed to the upper surface of the mounting plate 4. Ventilation openings 52 are provided on both sides of the sound-absorbing bracket 5. Figure 1 and Figure 2 As shown, when the fan is working, the outside air first flows horizontally, passes through the vent 52 and enters the inner cavity of the dust collector housing 1, and then flows from top to bottom in the inner cavity of the dust collector housing 1.

[0026] Secondly, the sound-absorbing frame 5 is in the shape of a "well" and multiple sound-absorbing baffles 6 are fixed on both sides of the sound-absorbing frame 5 at equal intervals. The sound-absorbing baffles 6 are placed vertically, and air can flow in the gap between two adjacent sound-absorbing baffles 6. The inside of the sound-absorbing baffles 6 is filled with sound-absorbing sponge 62, and the side wall of the sound-absorbing baffles 6 is provided with filter holes 61. When the air flows, the sound-absorbing sponge 62 can absorb the airflow noise and also absorb the vibration noise generated by the fan. In addition, the opening of the filter holes 61 allows noise to enter the inner cavity of the sound-absorbing baffles 6 so that the sound-absorbing sponge 62 can absorb it. On the other hand, it can filter the dust in the air and prevent dust from adhering to the surface of the sound-absorbing sponge 62 and affecting the noise absorption effect.

[0027] Furthermore, a sound-absorbing cover 7 is fixedly covered on the upper side of the sound-absorbing stand 5. The sound-absorbing cover 7 is set as a double-layer structure and has an internal vacuum. The sound-absorbing cover 7 covers the upper part of the dust collector shell 1 from top to bottom. Its internal vacuum can effectively block the noise from being directly transmitted to the outside, thereby ensuring that the noise can be absorbed by the sound-absorbing sponge 62 as much as possible.

[0028] The device changes the air flow path and the noise propagation path through the setting of the soundproof cover 7, and realizes the maximum absorption of the noise by the soundproof sponge 62 by prolonging the noise propagation path. On the other hand, the air can be sucked into the inner cavity of the dust collector shell 1 from both sides of the dust collector shell 1, thereby increasing the absorption range of the device to the surrounding dust, and improving the working efficiency of the dust collector.

[0029] In order to suck external air into the inner cavity of the dust collector shell 1, the present application also has sound-absorbing cotton arranged on the inner side wall of the dust collector shell 1, so as to reduce the noise in the internal environment of the dust collector shell 1 as much as possible. The upper part of the outer side wall of the dust collector shell 1 is provided with a plurality of air suction ports 11 which correspond to the plurality of air vents 52. After the air suction port 11 corresponds to the air vent 52, it is ensured that the surrounding air can carry dust and be sucked into the inner part of the dust collector shell 1.

[0030] In order to prolong the noise propagation path, the present application also has a collection bin 51 arranged in the middle of the soundproof stand 5, and the middle of the installation plate 4 is provided with an air inlet 41 which corresponds to the collection bin 51. Figure 2 As shown in the figure, the air can pass through the air vent 52 from both sides of the soundproof stand 5 into the inner cavity of the collection bin 51, and then be sucked into the inner cavity of the fan chamber 3 by the fan through the air inlet 41. Therefore, when the fan of the device is working, the air flow path is in the shape of "L", the noise propagation path is in the shape of "L" opposite to the air flow direction, the air flow path is prolonged, and the noise propagation path is also prolonged. Therefore, the soundproof sponge 62 can fully absorb the noise.

[0031] In order to avoid generating greater airflow noise, the present application also has a flow guide block 8 fixedly arranged on the lower surface of the soundproof cover 7, and the flow guide block 8 is located in the inner cavity of the collection bin 51. Figure 2 As shown in the figure, the setting of the flow guide block 8 is used to guide the flow of air, avoid the air on both sides of the soundproof stand 5 from colliding, so as to ensure that the air flow is more stable, and avoid greater airflow noise.

[0032] In order to describe the soundproof cover 7 in detail, the soundproof cover 7 of the present application includes a top cover 71 and a bottom cover 72, and a gap is left between the two. The gap between the top cover 71 and the bottom cover 72 is subjected to vacuumizing treatment, so as to avoid the noise from penetrating the soundproof cover 7 and directly propagating to the external environment. A "mouth" shaped flexible pad 73 is arranged at the edge between the top cover 71 and the bottom cover 72. The top cover 71 and the bottom cover 72 are fixedly connected by screws and press the flexible pad 73 tightly. The flexible pad 73 is arranged on one hand to separate the top cover 71 and the bottom cover 72 to form a vacuum gap, and on the other hand to seal the gap between the top cover 71 and the bottom cover 72.

[0033] In order to collect dust, the application is provided with a pulse chamber 2 at the bottom of the inner cavity of the dust collector shell 1, and the pulse chamber 2 is provided with a pulse device known in the prior art for accelerating dust collection.

[0034] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A silencing device for a dust collector, characterized by: The silencing device includes: a dust collector housing (1), in the middle of the inner cavity of the dust collector housing (1), there is a fan chamber (3), at the top of the fan chamber (3), there is a mounting cross plate (4) fixed, on the upper surface of the mounting cross plate (4), there is a silencing vertical frame (5) fixed, and ventilation openings (52) are respectively arranged through both sides of the silencing vertical frame (5); the silencing vertical frame (5) is in a "well" shape, and on both sides of the silencing vertical frame (5), there are a plurality of silencing partitions (6) fixed and distributed at equal intervals. Inside the silencing partitions (6), there is sound-absorbing sponge (62) filled, and filtering holes (61) are respectively arranged through the side walls of the silencing partitions (6); on the upper side of the silencing vertical frame (5), there is a silencing cover (7) fixed and covered. The silencing cover (7) is arranged in a double-layer structure and is vacuum inside; 2. The silencer for dust collector according to claim 1, wherein: on the inner side wall of the dust collector housing (1), there is sound-absorbing cotton arranged. On the upper part of the outer side wall of the dust collector housing (1), there are suction openings (11) respectively arranged through. There are a plurality of suction openings (11), and they correspond to the plurality of ventilation openings (52) one by one; 3. The silencer of claim 1, wherein: in the middle of the silencing vertical frame (5), there is a collecting bin (51) arranged. Through the middle of the mounting cross plate (4), there is an air inlet (41) arranged, and the air inlet (41) corresponds to the collecting bin (51); 4. The silencer of claim 2, wherein: on the lower surface of the silencing cover (7), there is a flow guiding block (8) fixed and arranged. The flow guiding block (8) is located in the inner cavity of the collecting bin (51), and the cross section of the flow guiding block (8) is in an inverted "human" shape; 5. The silencer of claim 1, wherein: the silencing cover (7) includes a top cover (71) and a bottom cover (72), and there is a gap between them. At the edge between the top cover (71) and the bottom cover (72), there is a "mouth" - shaped flexible pad (73) arranged. Between the top cover (71) and the bottom cover (72), they are fixedly connected by screws and the flexible pad (73) is pressed; 6. The silencer of claim 1, wherein: at the bottom of the inner cavity of the dust collector housing (1), there is a pulse chamber (2) arranged. At the lower end of the dust collector housing (1), there is a dust collection chamber (12) installed, and at the open end of the dust collection chamber (12), there is a cloth bag filter cartridge.

Images