CN209444625U - A kind of mining main fan silencer - Google Patents
A kind of mining main fan silencer Download PDFInfo
- Publication number
- CN209444625U CN209444625U CN201920017160.5U CN201920017160U CN209444625U CN 209444625 U CN209444625 U CN 209444625U CN 201920017160 U CN201920017160 U CN 201920017160U CN 209444625 U CN209444625 U CN 209444625U
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- CN
- China
- Prior art keywords
- muffler
- baffle
- muffler section
- plate
- vertical
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of mining main fan silencers, including silencing tower, the inside of silencing tower is disposed with lower part muffler section, middle part muffler section and top muffler section from bottom to top, it is horizontally spaced in the muffler section of lower part to be provided with multiple groups reactive muffling component, reactive muffling component includes first baffle, second baffle and horizontal support, the fixing end of first baffle is hinged on horizontal support, the movable end of first baffle is inclined on horizontal support by compressed spring, the second inclined plate and the setting symmetrical above and below of the first inclined plate；Longitudinal carrier is provided in the muffler section of middle part, multiple vertical muffler plates are arranged at intervals on longitudinal carrier, top muffler section includes vertical supports and sound absorption top plate, and vertical supports are arranged on the exhaust outlet of silencing tower, and the top in vertical supports and being located at exhaust outlet is arranged in sound absorption top plate.The utility model is substantially increased the noise reduction capability of silencing tower, is realized main fan noise qualified discharge using multistage noise elimination structure.
Description
Technical field
The utility model relates to fan noise elimination technical field more particularly to a kind of mining main fan silencers.
Background technique
Mine ventilator is one kind of axial flow blower, is mainly used in mine ventilation, is divided into main fan, auxiliary fan drawn game by purposes
Fan.Wherein ventilation of the main fan for full mine or a certain wing of mine, is called main fan.Main fan run when, air inlet with
And air outlet can generate a large amount of noises, if not taking necessary noise reduction measure, it will severe jamming field worker and week
Enclose the normal life of resident.When the prior art eliminates the noise to main fan, single hop noise elimination structure is only set in silencing tower, is disappeared
Volume is small, can not achieve noise qualified discharge.
Utility model content
The purpose of this utility model is to provide a kind of mining main fan silencers, can be improved the noise elimination of silencing tower
Amount reduces Fan Equipment noise.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of mining main fan silencer, including silencing tower, the lower end of the silencing tower are connected with blast pipe, eliminate the noise
The upper end of tower offers exhaust outlet, the inside of silencing tower be disposed with from bottom to top lower part muffler section, middle part muffler section and on
Portion's muffler section, it is horizontally spaced in the lower part muffler section to be provided with multiple groups reactive muffling component, reactive muffling component
Including first baffle, second baffle and horizontal support, the fixing end of first baffle is hinged on horizontal support, the work of first baffle
Moved end is inclined on horizontal support by compressed spring, the second inclined plate and the setting symmetrical above and below of the first inclined plate；In described
It is provided with longitudinal carrier in portion's muffler section, multiple vertical muffler plates, the top muffler section are arranged at intervals on longitudinal carrier
Including vertical supports and sound absorption top plate, vertical supports are arranged on the exhaust outlet of silencing tower, and sound absorption top plate is arranged in vertical supports
Go up and be located at the top of exhaust outlet.
The blast pipe is tapered, and the big end of blast pipe is connected to the side wall of silencing tower, and the small end of blast pipe is provided with
Connecting flange offers mounting hole on connecting flange.
The vertical muffler plate is hollow structure, and the surface of vertical muffler plate offers multiple ventholes, vertical to eliminate the noise
Noise elimination sponge is filled in plate.
Noise elimination sponge is additionally provided on the inner wall of the middle part muffler section.
The vertical muffler plate is in fold-line-shaped.
The silencing tower of the utility model is using multistage noise elimination structure, first with the flapper of lower part muffler section to entrance
The air of silencing tower is reflected to weaken noise, while acoustic vibration is passed to flapper, and the machine of flapper is passed through
Tool vibration weakens acoustic wave energy, realizes primary noise reduction, then carries out secondary noise reduction using the vertical muffler plate of middle part muffler section, most
Final stage noise reduction is carried out using the sound absorption top plate of top muffler section afterwards, the noise reduction capability of silencing tower is substantially increased, realizes main fan
Fan noise qualified discharge.
Preferably, the utility model is by opening up venthole on the surface of vertical muffler plate, and it is filled with and disappears
Sound sponge effectively realizes impedance complex formula noise reduction, increases the sound deadening capacity of middle part muffler section.
Preferably, the vertical muffler plate of the utility model is designed as fold-line-shaped, so that sound wave generates reflection, interference effect
It answers, further enhances attenuation by absorption of the muffler plate to sound energy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of the lower part muffler section；
Fig. 3 is the top view of the middle part muffler section.
Specific embodiment
As shown in Figure 1, a kind of mining main fan silencer described in the utility model, including silencing tower, silencing tower
Lower end is connected with blast pipe 1, and the upper end of silencing tower offers exhaust outlet 13, and the inside of silencing tower is disposed with down from bottom to top
Portion's muffler section 3, middle part muffler section 4 and top muffler section 5.Main fan discharges air and enters silencing tower from blast pipe 1, successively passes through
It is discharged after crossing 5 noise reduction of lower part muffler section 3, middle part muffler section 4 and top muffler section.
The blast pipe 1 of the present embodiment is tapered, and the big end of blast pipe 1 is connected to the side wall of silencing tower, the small end of blast pipe 1
It is provided with connecting flange 2, offers mounting hole on connecting flange 2.Blast pipe 1 connects going out for main fan by connecting flange 2
Air port can change gas flow rate by the variable diameter of blast pipe 1 to silencing tower, eliminate partial noise.
Horizontally spaced in lower part muffler section 3 to be provided with multiple groups reactive muffling component, reactive muffling component includes the
One baffle 6, second baffle 7 and horizontal support.As shown in Fig. 2, horizontal support includes two cross bars 9 that front and back is arranged, first gear
The fixing end of plate 6 is hinged on two cross bars 9, and the movable end of first baffle 6 is inclined at two cross bars by compressed spring 8
On 9, second baffle 7 and the setting symmetrical above and below of first baffle 6.
Since first baffle 6 and second baffle 7 are mutually inclined to form variable diameter passage, after air enters lower part muffler section 3, sound
Wave, which is obstructed, generates reflection, so that partial noise is eliminated, while under the impact of air-flow, the activity of first baffle 6 and second baffle 7
End is with the flexible generation mechanical oscillation of compressed spring 8, then acoustic wave energy further weakens, and realizes primary noise reduction.
It is provided with longitudinal carrier in middle part muffler section 4, multiple vertical muffler plates 10 are arranged at intervals on longitudinal carrier.Such as figure
Shown in 3, longitudinal carrier includes the more struts being parallel to each other 12, and each vertical muffler plate 10 is separately fixed on strut 12, phase
Uniform gas flow channel is formed between adjacent vertical muffler plate 10, the vertical noise reduction in air flow process of muffler plate 10 disappears
Sound.
The vertical muffler plate 10 of the present embodiment is in fold-line-shaped, and is hollow structure, and the surface of vertical muffler plate 10 offers
Multiple ventholes, vertical muffler plate 10 is interior to be filled with noise elimination sponge 11, is also equipped with noise elimination sponge on the inner wall of middle part muffler section 4
11.When air flows in middle part muffler section 4, resistive noise reduction is carried out using noise elimination sponge 11, carries out resistance using fold-line-shaped plate
Noise reduction, to realize impedance complex formula noise reduction.
Top muffler section 5 includes vertical supports 14 and sound absorption top plate 15, and the exhaust outlet of silencing tower is arranged in vertical supports 14
On 13, the top in vertical supports 14 and being located at exhaust outlet 13 is arranged in sound absorption top plate 15.Sound absorption top plate 15, which can both reduce, makes an uproar
Sound, and can prevent sleet from entering, effectively increase the service life of silencing tower.
The working principle of the utility model is: blast pipe 1 connects the air outlet of main fan, main fan by connecting flange 2
After blower discharges air from blast pipe 1 into silencing tower, the first baffle 6 and second baffle 7 of lower part muffler section 3 are first by anti-
It penetrates sound wave and weakens noise, while acoustic vibration passes to first baffle 6 and second baffle 7, first baffle 6 and second baffle 7 produce
Raw mechanical oscillation weaken acoustic wave energy, realize primary noise reduction；Subsequent air-flow is flowed up by the channel between first baffle 6,
Into middle part muffler section 4, the vertical muffler plate 10 of middle part muffler section 4 is carried out resistive and anti-using porous structure and noise elimination sponge 11
Property combined type noise reduction, realize secondary noise reduction；Last air-flow is flowed up by the channel between vertical muffler plate 10, into top
Muffler section 5, after the sound absorption top plate 15 of top muffler section 5 carries out whole grade noise elimination noise reduction, air is discharged from exhaust outlet 13.
Claims (5)
1. a kind of mining main fan silencer, it is characterised in that: including silencing tower, the lower end of the silencing tower be connected with into
Air hose, the upper end of silencing tower offer exhaust outlet, and the inside of silencing tower is disposed with lower part muffler section from bottom to top, middle part disappears
Sound section and top muffler section, it is horizontally spaced in the lower part muffler section to be provided with multiple groups reactive muffling component, resistance
Sound attenuation assembly includes first baffle, second baffle and horizontal support, and the fixing end of first baffle is hinged on horizontal support, and first
The movable end of baffle is inclined on horizontal support by compressed spring, the second inclined plate and the setting symmetrical above and below of the first inclined plate；
It is provided with longitudinal carrier in the middle part muffler section, multiple vertical muffler plates are arranged at intervals on longitudinal carrier, described is upper
Portion's muffler section includes vertical supports and sound absorption top plate, and vertical supports are arranged on the exhaust outlet of silencing tower, and sound absorption top plate setting exists
Top in vertical supports and positioned at exhaust outlet.
2. a kind of mining main fan silencer according to claim 1, it is characterised in that: the blast pipe is in cone
Shape, the big end of blast pipe are connected to the side wall of silencing tower, and the small end of blast pipe is provided with connecting flange, are offered on connecting flange
Mounting hole.
3. a kind of mining main fan silencer according to claim 1, it is characterised in that: the vertical muffler plate is
Hollow structure, the surface of vertical muffler plate offer multiple ventholes, are filled with noise elimination sponge in vertical muffler plate.
4. a kind of mining main fan silencer according to claim 1, it is characterised in that: the middle part muffler section
Noise elimination sponge is additionally provided on inner wall.
5. a kind of mining main fan silencer according to claim 1, it is characterised in that: the vertical muffler plate is in
Fold-line-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920017160.5U CN209444625U (en) | 2019-01-07 | 2019-01-07 | A kind of mining main fan silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920017160.5U CN209444625U (en) | 2019-01-07 | 2019-01-07 | A kind of mining main fan silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209444625U true CN209444625U (en) | 2019-09-27 |
Family
ID=68017178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920017160.5U Expired - Fee Related CN209444625U (en) | 2019-01-07 | 2019-01-07 | A kind of mining main fan silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209444625U (en) |
-
2019
- 2019-01-07 CN CN201920017160.5U patent/CN209444625U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190927 Termination date: 20220107 |