CN203476739U - Low-noise mining pneumatic draught fan - Google Patents
Low-noise mining pneumatic draught fan Download PDFInfo
- Publication number
- CN203476739U CN203476739U CN201320171479.6U CN201320171479U CN203476739U CN 203476739 U CN203476739 U CN 203476739U CN 201320171479 U CN201320171479 U CN 201320171479U CN 203476739 U CN203476739 U CN 203476739U
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- pneumatic
- draught fan
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Abstract
The utility model relates to a ventilation device and particularly relates to a mining pneumatic draught fan applicable to an excavation working surface and a roadway of a mine. A front silencer and a rear silencer are installed at the outer sides of the front end and rear end of a main-machine case respectively. A wind collector is installed at the outer end of the front silencer. The main-machine case includes a main-machine inner case and a main-machine outer case. A pneumatic motor is installed in the main-machine inner case. The pneumatic motor is provided with a gas outlet and a gas inlet pipe. The gas outlet is communicated with a gas outlet pipe connected between the main-machine inner case and the main-machine outer case. The pneumatic motor drives an impeller to rotate. Two layers of punched plates are arranged between the main-machine outer case and main-machine inner case. An interlayer between the punched plates is filled with noise reduction cotton. The low-noise mining pneumatic draught fan further improves the prior noise reduction measures, reduces noises of the draught fan greatly and increases the air volume of the draught fan.
Description
Technical field
The utility model relates to ventilation equipment, particularly a kind of mine pneumatic ventilator being applicable in mine excavation working surface and a tunnel.
Background technique
At present, there are two defects in the mine pneumatic ventilator that existing mine excavation working surface and a tunnel are used, and the one, pneumatic motor noise is large, though motor muffler has been installed, during motor muffler work, noise is much larger than 85db.The 2nd, motor muffler externally discharges, and noise pollution is large.
Model utility content
The purpose of this utility model is to provide a kind of mine pneumatic blower fan structure of low noise.
The purpose of this utility model is achieved through the following channels: a kind of low noise mine pneumatic blower fan, in outside, main case front end and back end, be separately installed with premuffler and rear muffler, wind collecting unit is equipped with in premuffler outer end, main case is comprised of main frame inner casing and host housing, in main frame inner casing, pneumatic motor is installed, pneumatic motor is respectively equipped with relief opening and air inlet pipeline, and relief opening communicates with the outlet pipe that is connected main frame inner casing and host housing, the rotation of pneumatic motor drives impeller; It is characterized in that: between described host housing and main frame inner casing, be provided with double-deck punched-plate, between punched-plate, in interlayer, be filled with silencing cotton.
As the further optimization of scheme, on the stage casing shell of described main case, be coated with silencing cotton.
Further optimization as scheme, is provided with straightener(stator) blade in described rear muffler.
The utility model low noise mine pneumatic blower fan, further improved existing noise reduction measure, in this programme, main case stage casing has increased silencing cotton, between host housing and main frame inner casing, increased the design that double-deck punched-plate clamps silencing cotton, the double-deck punched-plate of the wind that motor relief opening is discharged on main case and silencing cotton enter fan air channel around laggard, the noise that greatly reduces blower fan, has increased fan delivery.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model structural representation;
In figure, 1-wind collecting unit, 2-premuffler, 3-air inlet pipeline, 4-silencing cotton, 5-punched-plate, 6-outlet pipe, 7-host housing, 8-main frame inner casing, 9-relief opening, 10-pneumatic motor, 11-main case, 12-impeller, 13-straightener(stator) blade, 14-rear muffler.
Embodiment
As shown in Figure 1, a kind of low noise mine pneumatic of the utility model blower fan, in main case 11 outsides, front end and back end, be separately installed with premuffler 2 and rear muffler 14, wind collecting unit 1 is equipped with in premuffler 2 outer ends, main case 11 is comprised of main frame inner casing 8 and host housing 7, and pneumatic motor 10 is installed in main frame inner casing 8, and pneumatic motor 10 is respectively equipped with relief opening 9 and air inlet pipeline 3, relief opening 9 communicates with the outlet pipe 6 being connected between main frame inner casing 8 and host housing 7, pneumatic motor 10 drives impeller 12 rotations; Between described host housing 7 and main frame inner casing 8, be provided with double-deck punched-plate 5, between punched-plate 5, in interlayer, be filled with silencing cotton 4, on the shell of the stage casing of main case 11, be coated with silencing cotton 4.In described rear muffler 14, straightener(stator) blade 13 is installed.
During work, down-hole wind regime drives pneumatic motor 10 axle rotations after air inlet pipeline 3, pneumatic motor 10 impeller 12 rotations of rotation, and the wind of the impeller disturbance of High Rotation Speed, penetrates along the air channel between main frame inner casing 8 and host housing 7.The outlet pipe 6 of the wind of discharging through the relief opening 9 of pneumatic motor 10 on main frame inner casing 8 enters the interlayer of punched-plate 5 and host housing 7, after through punched-plate 5, silencing cotton 4, punched-plate 5, enter in the fan air channel between main frame inner casing 8 and host housing 7 again.By taking above-mentioned measure, greatly reduce the noise of blower motor, increased the air quantity of blower fan.
Claims (3)
1. a low noise mine pneumatic blower fan, in outside, main case (11) front end and back end, be separately installed with premuffler (2) and rear muffler (14), wind collecting unit (1) is equipped with in premuffler (2) outer end, main case (11) is comprised of main frame inner casing (8) and host housing (7), pneumatic motor (10) is installed in main frame inner casing (8), pneumatic motor (10) is respectively equipped with relief opening (9) and air inlet pipeline (3), relief opening (9) communicates with the outlet pipe (6) that is connected main frame inner casing (8) and host housing (7), pneumatic motor (10) drives impeller (12) rotation, it is characterized in that: between described host housing (7) and main frame inner casing (8), be provided with double-deck punched-plate (5), between punched-plate (5), in interlayer, be filled with silencing cotton (4).
2. low noise mine pneumatic blower fan as claimed in claim 1, is characterized in that: on the stage casing shell of described main case (11), be coated with silencing cotton (4).
3. low noise mine pneumatic blower fan as claimed in claim 1, is characterized in that: straightener(stator) blade (13) is installed in described rear muffler (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320171479.6U CN203476739U (en) | 2013-04-09 | 2013-04-09 | Low-noise mining pneumatic draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320171479.6U CN203476739U (en) | 2013-04-09 | 2013-04-09 | Low-noise mining pneumatic draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476739U true CN203476739U (en) | 2014-03-12 |
Family
ID=50225077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320171479.6U Expired - Fee Related CN203476739U (en) | 2013-04-09 | 2013-04-09 | Low-noise mining pneumatic draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476739U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736478A (en) * | 2016-03-30 | 2016-07-06 | 王刚 | Sound insulation and noise reduction device of draught fan |
| CN106151069A (en) * | 2015-03-30 | 2016-11-23 | 辽宁工程技术大学 | A kind of new mine product booster |
| CN107676280A (en) * | 2017-11-08 | 2018-02-09 | 江苏格林机械有限公司 | A kind of mining noise reduction fans |
-
2013
- 2013-04-09 CN CN201320171479.6U patent/CN203476739U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151069A (en) * | 2015-03-30 | 2016-11-23 | 辽宁工程技术大学 | A kind of new mine product booster |
| CN105736478A (en) * | 2016-03-30 | 2016-07-06 | 王刚 | Sound insulation and noise reduction device of draught fan |
| CN107676280A (en) * | 2017-11-08 | 2018-02-09 | 江苏格林机械有限公司 | A kind of mining noise reduction fans |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140409 |