CN2790585Y - Steel ball coal mill sound-proof device - Google Patents
Steel ball coal mill sound-proof device Download PDFInfo
- Publication number
- CN2790585Y CN2790585Y CN 200520089513 CN200520089513U CN2790585Y CN 2790585 Y CN2790585 Y CN 2790585Y CN 200520089513 CN200520089513 CN 200520089513 CN 200520089513 U CN200520089513 U CN 200520089513U CN 2790585 Y CN2790585 Y CN 2790585Y
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- CN
- China
- Prior art keywords
- utility
- model
- plates
- coal mill
- soundproof
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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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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model belongs to a silencing device, particularly a soundproof device of a steel ball coal mill. The soundproof device of a steel ball coal mill is composed of soundproof plates and a frame, wherein the soundproof plates are composed of steel plates, rubber plates, glass cotton felts, tin foil paper, hole plates and press strips and are all connected with the frame by threaded bolts. The thickness of the soundproof plates is from 150 to 200 mm. Because the utility model uses the rubber plates with thickness from 1 to 3 mm as damping layers, damping effect can be increased obviously. The utility model is favorable to the long use of sound absorption layers of the glass cotton felts by using the tin foil paper, the utility model is favorable to sound absorption by using the hole plates, the sealing effect can be increased by using the press strips, parts of the utility model are all connected by threaded bolts and the utility model has better sealing performance and convenient assembly and disassembly. Thus, the utility model can reach the noise standard of 85 db.
Description
Technical field
The utility model belongs to silencing means, more precisely is a kind of low speed coal mill sound arrester.
Background technology
Steam power plant generally uses low speed coal mill, low speed coal mill equipment noise exceeds standard, the ZL00212692.3 utility model patent proposes a kind of solution, it is perfect not enough to put into practice the discovery technique measure, also there is certain problem in the noise reduction that requires for high standard every making an uproar, and the gap sealing that mainly shows as the inserted assembly structure of framework is poor, and the soundproof effect of sound panel needs to improve relatively, adopt bath of glass or bituminous coating as its damping layer, damping is poor.
Summary of the invention
The purpose of this utility model is, a kind of low speed coal mill sound arrester that can improve noise reduction every the effect of making an uproar is provided.
The purpose of this utility model is achieved through the following technical solutions: the low speed coal mill sound arrester is made up of sound panel, skeleton, wherein sound panel is laminated with and is formed by steel plate, rubber slab, blanket of glass wool, tin pool paper, orifice plate, press strip, and sound panel all is connected with skeleton with bolt.
The thickness of described sound panel is 150-200mm.
The utility model is because the rubber slab of employing 1-3mm is that damping layer can significantly improve damping, adopt tin pool paper can completely cut off coal dust, help the long-term use of blanket of glass wool sound absorbing layer, adopt orifice plate to help sound-absorbing, adopt press strip can improve sealing effectiveness, all adopt bolt to connect good airproof performance, therefore easy accessibility can reach the criteria for noise of 85db.
Description of drawings
Fig. 1 is the utility model structure chart, and Fig. 1 is the utility model embodiment.
Fig. 2 is a sound panel structure chart of the present utility model.
The specific embodiment
With reference to Fig. 1, the low speed coal mill sound arrester is made up of sound panel 1, skeleton, and wherein sound panel 1 is laminated with and is formed by steel plate 3, rubber slab 4, blanket of glass wool 5, tin pool paper 6, orifice plate 7, press strip 8, and sound panel 1 all is connected with skeleton with bolt 2.
Claims (2)
1. a low speed coal mill sound arrester is made up of sound panel, skeleton, it is characterized in that: sound panel is laminated with and is formed by steel plate, rubber slab, blanket of glass wool, tin pool paper, orifice plate, press strip, and sound panel all is connected with skeleton with bolt.
2. according to the described low speed coal mill sound arrester of claim 1, it is characterized in that: the thickness of sound panel is 150-200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089513 CN2790585Y (en) | 2005-03-03 | 2005-03-03 | Steel ball coal mill sound-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520089513 CN2790585Y (en) | 2005-03-03 | 2005-03-03 | Steel ball coal mill sound-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2790585Y true CN2790585Y (en) | 2006-06-28 |
Family
ID=36806666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520089513 Expired - Fee Related CN2790585Y (en) | 2005-03-03 | 2005-03-03 | Steel ball coal mill sound-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2790585Y (en) |
-
2005
- 2005-03-03 CN CN 200520089513 patent/CN2790585Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |