Silencing mechanism for dust removal equipment

Abstract

The utility model relates to the technical field of dust removal equipment, in particular to a noise elimination mechanism for dust removal equipment, which comprises a first noise elimination part, the centrifugal fan is arranged on the first silencing part; the second silencing part is arranged on the centrifugal fan; the first silencing part is connected with the centrifugal fan, the silencer is connected with the centrifugal fan, the first silencing part is a cabinet body, a heavy plate is welded to the bottom of the cabinet body, an air pipe opening is formed in the cabinet body, and the cabinet body comprises a metal plate arranged on the heavy plate. Through an assembly composed of the first silencing part, the centrifugal fan, the second silencing part and the silencer, a multi-silencing mechanism is provided for the dust removal equipment so as to reduce noise generated to the outside in the dust removal operation period, the key point is that the fan with large noise pollution is subjected to silencing treatment, vibration noise of the fan body can be reduced, and the service life of the fan is prolonged. And the air flow noise of the exhaust of the fan is weakened, so that the noise of the dust removal equipment forms a maximum area, and a better silencing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to a muffler mechanism for dust removal equipment. Background Art

[0002] Dust removal equipment is widely used in many industries such as electricity, steel, chemical industry, cement, mining, etc. It is used to deal with dust and exhaust gas generated in the production process, effectively improve the working environment, reduce respiratory pollution, protect the environment, and enhance safety. The main dust removal power source of dust removal equipment is the fan. In order to better arrange pipes and maintenance, the fans of existing dust removal equipment are usually used in an exposed state, resulting in the noise generated by the fan having a certain impact on surrounding personnel.

[0003] Because the counterweight of the dust removal fan is light, the fan vibrates during operation and generates noise. In order to solve the problem of high airflow noise of the dust removal equipment fan, a silencer mechanism for dust removal equipment is proposed to provide a set of multiple silencers for the dust removal equipment to reduce the noise generated to the outside during the dust removal operation. The focus is on silencing the fan with greater noise pollution, which can reduce the vibration noise of the fan body and weaken the airflow noise of the fan exhaust, so that the area where the dust removal equipment noise is formed the largest can obtain a better silencer effect. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a silencer mechanism for dust removal equipment, which provides a set of multiple silencer mechanisms for the dust removal equipment to reduce the noise generated to the outside during the dust removal operation, with a focus on silencing fans with greater noise pollution, which can reduce the vibration noise of the fan body and weaken the airflow noise of the fan exhaust, so that the area where the noise of the dust removal equipment is generated the largest can obtain a better silencer effect.

[0005] The technical solution adopted by the utility model to solve the technical problem is a muffler mechanism for dust removal equipment, comprising:

[0006] First muffler section;

[0007] A centrifugal fan is arranged on the first muffler;

[0008] The second muffler is arranged on the centrifugal fan;

[0009] A muffler is connected to the centrifugal fan.

[0010] By adopting the above technical scheme, through the components consisting of the first silencer part, the centrifugal fan, the second silencer part and the silencer, a set of multiple silencer mechanisms is provided for the dust removal equipment to reduce the noise generated to the outside during the dust removal operation, with the focus on silencing the fans with greater noise pollution, which can reduce the vibration noise of the fan body and weaken the airflow noise of the fan exhaust, so that the area where the noise of the dust removal equipment is generated the largest can obtain a better silencer effect.

[0011] Specifically, the first muffler is a cabinet, and a heavy plate is welded to the bottom of the cabinet, and an air duct opening is opened on the cabinet. The cabinet includes:

[0012] Sheet metal, set on heavy plates;

[0013] A first sound-absorbing cotton pad is arranged on the sheet metal;

[0014] A grid-type pressing plate is arranged on the first sound-absorbing cotton pad;

[0015] The screws penetrate the grid-type pressure plate and the first sound-absorbing cotton pad and are connected to the sheet metal.

[0016] By adopting the above technical solution, the first silencer is used to absorb and silence the periphery of the centrifugal fan as a whole.

[0017] Specifically, the second muffler is arranged on the inner wall of the volute of the centrifugal fan, and the second muffler includes:

[0018] A sound absorbing chamber is provided on the centrifugal fan;

[0019] A second sound-absorbing cotton pad is arranged on the sound-absorbing cavity;

[0020] Stainless steel plate, connected to the centrifugal fan;

[0021] Sound-absorbing holes are opened along the surface of the stainless steel plate.

[0022] By adopting the above technical solution, the wind flow noise in the inner cavity of the fan volute is sound-absorbing through the second silencer.

[0023] Specifically, the heavy plate is made of carbon steel material, and the centrifugal fan is installed with the cabinet and the heavy plate in sequence by bolts.

[0024] By adopting the above technical solution, the heavy plate made of carbon steel material has a heavier texture and can counterweight the bottom of the centrifugal fan to reduce the shaking of the centrifugal fan during operation and reduce the vibration noise of the centrifugal fan.

[0025] Specifically, the air inlet end of the centrifugal fan is connected to an air inlet pipe, and the air inlet end of the air inlet pipe is connected to a dust collector.

[0026] Specifically, the silencer is installed at the exhaust end of the centrifugal fan, the air duct opening is provided with two groups, and the air inlet pipe and the silencer are both inserted into the air duct opening, and rubber rings are provided between the air duct opening and the air inlet pipe and the silencer.

[0027] The beneficial effects of the utility model are as follows: through the components consisting of the first silencer part, the centrifugal fan, the second silencer part and the silencer, a set of multiple silencer mechanisms is provided for the dust removal equipment to reduce the noise generated to the outside during the dust removal operation, with a focus on silencing the fans with greater noise pollution, which can reduce the vibration noise of the fan body and weaken the airflow noise of the fan exhaust, so that the area with the largest noise of the dust removal equipment can obtain a better silencer effect, solve the problem that the fan vibration and noise caused by the light counterweight of the dust removal fan are solved, and solve the problem of large airflow noise of the fan of the dust removal equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Figure 1 It is an overall schematic diagram of the utility model;

[0030] Figure 2 This is a schematic diagram of the air inlet pipe of the utility model;

[0031] Figure 3 It is a schematic diagram of the cabinet of the utility model;

[0032] Figure 4 It is a schematic diagram of the sheet metal of the utility model;

[0033] Figure 5 This is a schematic diagram of a centrifugal fan of the utility model;

[0034] Figure 6 It is a schematic diagram of the inner cavity of the volute of the centrifugal fan in the utility model;

[0035] Figure 7 For the utility model Figure 5 The enlarged schematic diagram at A in the middle;

[0036] Figure 8 For the utility model Figure 6 Enlarged schematic diagram of point B in the middle.

[0037] In the figure: 1. dust collector; 2. cabinet: 201. sheet metal; 202. first sound-absorbing cotton pad; 203. grid-type pressure plate; 204. screws; 3. centrifugal fan; 4. air inlet pipe; 5. second muffler; 501. sound-absorbing chamber; 502. second sound-absorbing cotton pad; 503. stainless steel plate; 504. sound-absorbing hole; 6. silencer; 7. heavy-duty plate; 8. air duct opening. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0039] To reduce noise pollution, Figure 1-8 As shown, the utility model discloses a muffler mechanism for dust removal equipment, comprising:

[0040] First muffler section;

[0041] A centrifugal fan 3 is arranged on the first muffler;

[0042] The second muffler 5 is arranged on the centrifugal fan 3;

[0043] The muffler 6 is connected to the centrifugal fan 3 .

[0044] When in use, a set of multiple silencer mechanisms is provided for the dust removal equipment through the first silencer part, the centrifugal fan 3, the second silencer part 5 and the silencer 6 to reduce the noise generated to the outside during the dust removal operation, with a focus on silencing the fans with greater noise pollution.

[0045] For example, Figure 3 , 4 As shown, the utility model also includes that the first muffler is a cabinet 2, and a heavy plate 7 is welded to the bottom of the cabinet 2, and an air duct opening 8 is opened on the cabinet 2. The cabinet 2 includes:

[0046] Sheet metal 201, arranged on the heavy plate 7;

[0047] A first sound-absorbing cotton pad 202 is disposed on the sheet metal 201;

[0048] A grid-type pressing plate 203 is disposed on the first sound-absorbing cotton pad 202;

[0049] The screws 204 penetrate through the grid-type pressing plate 203 and the first sound-absorbing cotton pad 202 and are connected to the sheet metal 201 .

[0050] When in use, the cabinet 2 composed of sheet metal 201 provides external protection for the centrifugal fan 3, reduces noise diffusion, and reduces adhesion of external rain and dust to the centrifugal fan 3. The first sound-absorbing cotton pad 202 absorbs the noise of the centrifugal fan 3.

[0051] For example, Figure 5-8 As shown, the utility model also includes that the second muffler 5 is arranged on the inner wall of the volute of the centrifugal fan 3, and the second muffler 5 includes:

[0052] The sound absorbing chamber 501 is arranged on the centrifugal fan 3;

[0053] The second sound absorbing cotton pad 502 is arranged on the sound absorbing cavity 501;

[0054] The stainless steel plate 503 is connected to the centrifugal fan 3;

[0055] The sound absorbing holes 504 are opened through the surface of the stainless steel plate 503 .

[0056] When in use, the second muffler 5 reduces the noise of the centrifugal fan 3 body.

[0057] The heavy plate 7 is made of carbon steel material, and the centrifugal fan 3 is installed with the cabinet 2 and the heavy plate 7 in sequence by bolts.

[0058] The air inlet end of the centrifugal fan 3 is connected to an air inlet pipe 4 , and the air inlet end of the air inlet pipe 4 is connected to a dust collector 1 .

[0059] For example, Figure 2 As shown, the utility model also includes that the silencer 6 is installed at the exhaust end of the centrifugal fan 3, the air duct opening 8 is provided with two groups, and the air inlet pipe 4 and the silencer 6 are both inserted into the air duct opening 8, and rubber rings are provided between the air duct opening 8 and the air inlet pipe 4 and the silencer 6.

[0060] When in use, the wind flow discharged by the centrifugal fan 3 is silenced by the silencer 6 .

[0061] When the utility model is in use, the dust collector 1 is evacuated by the centrifugal fan 3 to generate negative pressure in the dust collector 1 to perform dust removal operations. During this period, the centrifugal fan 3 is silenced by the silencer mechanism composed of the first silencer part, the second silencer part 5 and the silencer 6. The second silencer part 5 performs a first silencer on the centrifugal fan 3, and the inner cavity of the centrifugal fan 3 is sound-absorbing by the second sound-absorbing cotton pad 502 and the stainless steel plate 503 with sound-absorbing holes 504. The first silencer part with the first sound-absorbing cotton pad 202 performs a second silencer on the centrifugal fan 3, and the silencer 6 performs a tail silencer on the exhaust end of the centrifugal fan 3, thereby silencing the fan part that generates the largest noise of the dust removal equipment.

[0062] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A muffler mechanism for dust removal equipment, characterized in that: include: First muffler section; A centrifugal fan (3) is arranged on the first muffler; A second muffler (5) is arranged on the centrifugal fan (3); A muffler (6) connected to the centrifugal fan (3); The first muffler part is a cabinet (2), and a heavy plate (7) is welded to the bottom of the cabinet (2). An air duct opening (8) is provided on the cabinet (2). The cabinet (2) comprises: A sheet metal (201) is disposed on the heavy plate (7); A first sound-absorbing cotton pad (202) is disposed on the sheet metal (201); A grid-type pressing plate (203) is arranged on the first sound-absorbing cotton pad (202); Screws (204) penetrate through the grid-type pressing plate (203) and the first sound-absorbing cotton pad (202) and are connected to the sheet metal (201); The second muffler (5) is arranged on the inner wall of the volute of the centrifugal fan (3), and the second muffler (5) comprises: A sound absorbing chamber (501) is arranged on the centrifugal fan (3); A second sound-absorbing cotton pad (502) is disposed on the sound-absorbing cavity (501); A stainless steel plate (503) connected to the centrifugal fan (3); The sound absorbing holes (504) are formed through the surface of the stainless steel plate (503); The heavy plate (7) is made of carbon steel, and the centrifugal fan (3) is installed with the cabinet (2) and the heavy plate (7) in sequence by bolts; The air inlet end of the centrifugal fan (3) is connected to an air inlet pipe (4), and the air inlet end of the air inlet pipe (4) is connected to a dust collector (1); The silencer (6) is installed at the exhaust end of the centrifugal fan (3), the air duct opening (8) is provided with two groups, and the air inlet pipe (4) and the silencer (6) are both inserted into the air duct opening (8), and rubber rings are provided between the air duct opening (8), the air inlet pipe (4) and the silencer (6).

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