CN219706348U - Foamed aluminum composite acoustic board for mine - Google Patents
Foamed aluminum composite acoustic board for mine Download PDFInfo
- Publication number
- CN219706348U CN219706348U CN202320944539.7U CN202320944539U CN219706348U CN 219706348 U CN219706348 U CN 219706348U CN 202320944539 U CN202320944539 U CN 202320944539U CN 219706348 U CN219706348 U CN 219706348U
- Authority
- CN
- China
- Prior art keywords
- foamed aluminum
- aluminum plate
- plate
- polyester fiber
- closed
- Prior art date
- 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.)
- Active
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 117
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 32
- 229920000728 polyester Polymers 0.000 claims abstract description 32
- 239000011148 porous material Substances 0.000 claims abstract description 9
- 239000006260 foam Substances 0.000 claims description 50
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 230000009467 reduction Effects 0.000 description 11
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011358 absorbing material Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 208000016354 hearing loss disease Diseases 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 208000028571 Occupational disease Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 231100000895 deafness Toxicity 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
Landscapes
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a foamed aluminum composite sound absorbing plate for a mine, which comprises two layers of foamed aluminum plates, wherein a cavity is reserved between the two layers of foamed aluminum plates, the foamed aluminum plate further comprises a polyester fiber sound absorbing plate (2), the two layers of foamed aluminum plates are respectively a closed-pore foamed aluminum plate (1) and a through-hole foamed aluminum plate (3), the closed-pore foamed aluminum plate (1), the polyester fiber sound absorbing plate (2) and the through-hole foamed aluminum plate (3) are sequentially arranged from outside to inside, a first cavity (4) is reserved between the closed-pore foamed aluminum plate (1) and the polyester fiber sound absorbing plate (2), and a second cavity (5) is reserved between the polyester fiber sound absorbing plate (2) and the through-hole foamed aluminum plate (3). The utility model can effectively absorb noise in the mine, reduce the harm of noise pollution to underground workers, and improve the safety and comfort of underground work.
Description
Technical Field
The utility model relates to a foamed aluminum composite acoustic panel for mines.
Background
Mine noise is various sounds which are harmful to human health and are one of the main factors causing occupational diseases of coal mine workers during mine excavation operation. The mine is an extremely closed environment, echo and resonance are easy to generate, and underground equipment such as pneumatic machinery, ventilation and the like has high noise characteristics, and the noise pollution is seriously beyond the tolerance of human ears. Long-term work in such an environment can cause abnormal nervous system and cardiovascular system besides noise deafness caused by hearing impairment, and seriously endanger physical and mental health of underground workers. Thus, mine noise reduction has become an important task, wherein noise control with sound absorbing materials is an important noise reduction method.
The sound absorbing material is mainly used for absorbing noise of various mechanical equipment, reducing harm of the noise to staff and improving safety and comfort of underground work. The mine belongs to a relatively closed environment, and serious consequences can be caused once a fire disaster occurs, so that the sound absorbing material for the mine has the advantages of noise reduction and good fireproof performance. The foamed aluminum is used as a novel material, has good sound absorption performance and fireproof performance, and is applied to highway noise reduction and tunnel noise reduction. Such as a laminated aluminum foam sound absorbing structure sound absorbing panel with grant publication No. 2021.10.08 and grant publication No. CN 214364182U. The double-layer foam aluminum sound absorption structure can filter and absorb most of sound wave energy, and a Helmholtz resonant cavity formed by cavities among the foam aluminum structures can effectively screen low-frequency noise so as to eliminate noise.
However, the noise reduction effect is insufficient for the mine excavation operation, and the application of the noise reduction for the mine is little, so that the design of the foamed aluminum composite acoustic panel for the mine is needed.
Disclosure of Invention
In order to overcome the defects, the utility model aims to provide the foamed aluminum composite acoustic panel for the mine, which can effectively absorb noise in the mine, reduce the harm of noise pollution to underground workers and improve the safety and comfort of underground work.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a mine is with compound abatvoix of foam aluminum, includes two-layer foam aluminum plate, leave the cavity between the two-layer foam aluminum plate, still include the polyester fiber abatvoix, two-layer foam aluminum plate is closed cell foam aluminum plate, through-hole foam aluminum plate respectively, closed cell foam aluminum plate, polyester fiber abatvoix and through-hole foam aluminum plate set gradually from outside to inside, have first cavity between closed cell foam aluminum plate and the polyester fiber abatvoix, have the second cavity between polyester fiber abatvoix and the through-hole foam aluminum plate.
Preferably, to sufficiently satisfy the sufficiency of use of the foamed aluminum sheet, the thickness of the closed-cell foamed aluminum sheet is 10mm, and the thickness of the through-hole foamed aluminum sheet is 10mm.
Preferably, the closed-cell foamed aluminum plate and the open-cell foamed aluminum plate are both preset with holes, the holes are uniformly distributed, and the aperture of the holes is 0.05mm-1mm.
Preferably, the closed-cell foam aluminum plate, the polyester fiber sound absorbing plate and the through-cell foam aluminum plate are sequentially penetrated by bolt columns of bolts and are respectively fixed by nuts; the vertical distance between the first cavity and the second cavity is determined by the distance required by the nut, the fixing piece and the installation.
As a further improvement of the utility model, the nuts on the stud posts are provided with fixing members respectively with the surfaces of the closed-cell foam aluminum plate, the upper and lower surfaces of the polyester fiber sound absorbing plate and the upper and lower surfaces of the through-hole foam aluminum plate. Can effectively prevent to move and ensure the stability of the foam aluminum composite board.
Preferably, the bolt head of the bolt is received in a closed cell foam aluminium plate. Not only improves the safety, but also improves the aesthetic property.
As a further improvement of the utility model, one side of the through-hole foamed aluminum plate is provided with an iron screw thread, so that the foamed aluminum composite sound absorbing plate can be fixed on a mine wire netting. The utility model is designed to be movable and is used by being matched with mine wire netting, and the difficulty of on-site construction of staff is reduced by combining the foamed aluminum composite acoustic panel with the mine wire netting. The device not only has convenient installation, but also can be reused, thereby improving the efficiency, reducing the cost, and having the advantages of repeated use, convenient installation and the like.
The beneficial effects of the utility model are as follows:
firstly, in the existing materials, people often select sound-absorbing cotton, sound-insulating steel plates, polyurethane foam, glass fibers and the like for noise reduction, but compared with the sound-absorbing cotton, the polyester fiber sound-absorbing plate has better sound-absorbing performance, dust is not easy to adsorb, the sound-absorbing material is more suitable for mine noise reduction, the sound-absorbing effect of the sound-insulating steel plate is poorer, the fireproof performance of the polyurethane foam and the glass fibers is not as good as that of the polyester fiber sound-absorbing plate, therefore, the sound-absorbing performance and the fireproof performance of the foamed aluminum composite sound-absorbing plate can be effectively ensured by combining the foamed aluminum and the polyester fiber sound-absorbing plate, and the excellent sound-absorbing performance can be shown by combining the foamed aluminum plate and the polyester fiber sound-absorbing plate.
Secondly, the two layers of foamed aluminum plates in the utility model are respectively closed-cell foamed aluminum plates and open-cell foamed aluminum plates, the closed-cell foamed aluminum plates have better fireproof performance, the open-cell foamed aluminum plates have better sound absorption performance, and the polyester fiber sound absorbing plates have good buffering performance, so when the sound absorbing plates are manufactured, the closed-cell foamed aluminum plates, the polyester fiber sound absorbing plates and the open-cell foamed aluminum plates are sequentially arranged from outside to inside, a first cavity and a second cavity are reserved between the closed-cell foamed aluminum plates and the open-cell foamed aluminum plates and the polyester fiber sound absorbing plates, and the formed cavity structure improves the noise reduction effect under mine.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
Fig. 2 is a schematic structural view of a bolt in the present embodiment.
Fig. 3 is a schematic structural view of the fixing member in this embodiment.
Fig. 4 is a schematic structural view of a through-hole foamed aluminum plate in this example.
Fig. 5 is a schematic structural view of the iron screw in this embodiment.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
Referring to fig. 1-5, this embodiment discloses a foam aluminum composite sound absorbing plate for mine, its sound absorbing effect is good, fire behavior is good, easy installation, the foam aluminum composite sound absorbing plate for mine of convenient to detach, its concrete structure includes two-layer foam aluminum plate, leave the cavity between the two-layer foam aluminum plate, still include polyester fiber sound absorbing plate 2, two-layer foam aluminum plate is closed cell foam aluminum plate 1 respectively, through-hole foam aluminum plate 3, closed cell foam aluminum plate 1, polyester fiber sound absorbing plate 2 and through-hole foam aluminum plate 3 set gradually from outside to inside, closed cell foam aluminum plate 1 has good fire behavior, design it in the outside, can effectively improve foam aluminum composite sound absorbing plate's fire behavior, design polyester fiber sound absorbing plate 2 in intermediate position, can effectively prevent that two foam aluminum plates from taking place the extrusion when receiving the striking, the security has been improved, closed cell foam aluminum plate 1 and polyester fiber sound absorbing plate 2 have first cavity 4 between, polyester fiber plate 2 and through-hole foam aluminum plate 3 have second cavity 5, the setting up of two-layer cavity has improved the noise reduction effect under the mine.
The thickness of the closed cell foam aluminum plate 1 is 10mm, the thickness of the open cell foam aluminum plate 3 is 10mm, holes are preset in the closed cell foam aluminum plate 1 and the open cell foam aluminum plate 3, the holes are uniformly distributed, the pore sizes of the holes are different, the pore size range of the holes in the embodiment is 0.05mm-1mm, and too much space cannot be occupied after the installation, so that the underground work cannot be influenced. The through holes are uniformly distributed, so that the sound absorption performance of the through hole foam aluminum plate 3 can be effectively optimized.
The heights of the first cavity 4 and the second cavity 5 are determined according to the distance required by installation, and the distance among the closed-cell foam aluminum plate 1, the polyester fiber sound absorbing plate 2 and the through-hole foam aluminum plate 3 is particularly fixed by nuts and bolts.
As in the present embodiment, the closed-cell foamed aluminum plate 1, the polyester fiber sound absorbing plate 2 and the open-cell foamed aluminum plate 3 are sequentially penetrated by the bolt posts 7 of the bolts 6 and are respectively fixed by the nuts 8, and the vertical distances of the first cavity 4 and the second cavity 5 are determined by the nuts 8. A fixing piece 9 is arranged between the nut 8 and each plate, which is favorable for keeping the stability of each plate, and further ensures the overall stability and safety of the acoustic panel.
In addition, fixing pieces 9 are respectively arranged between the nuts 8 on the bolt posts 7 and the surfaces of the closed-cell foam aluminum plate 1, the upper and lower surfaces of the polyester fiber sound absorbing plate 2 and the upper and lower surfaces of the through-hole foam aluminum plate 3, and as shown in fig. 3, the fixing pieces 9 are in a sheet-shaped structure.
As shown in fig. 1, the bolt head 10 of the bolt 6 in the present embodiment is accommodated in the closed-cell foamed aluminum plate 1.
In some embodiments, a iron screw 11 may be provided at one side of the through-hole foamed aluminum plate 3. The foam aluminum composite acoustic panel for the mine can be designed into different sizes according to the needs, and is fixed on the coal mine wire netting in a splicing mode when in use.
When the foamed aluminum composite acoustic panel for mines is installed, one side of a closed-cell foamed aluminum plate 1 is connected with a bolt 6, the other side of the closed-cell foamed aluminum plate is fixed by a fixing plate 9 and a nut 8, then a polyester fiber acoustic panel 2 and a through-hole foamed aluminum plate 3 are installed in sequence, and finally a iron screw thread 11 is installed on one side of the through-hole foamed aluminum plate 3. When the staff installs, need to lay the colliery wire netting in advance, select the compound abatvoix of foam aluminium of suitable size according to actual conditions, be connected with colliery wire netting through iron screw 11, in order to improve its aesthetic property, the space between the compound abatvoix of foam aluminium can be connected with the sticky tape.
The embodiment is mainly applied to places with relatively large noise, such as ventilation equipment, coal mining machines, heading machines, intelligent electricity control rooms and the like.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (8)
1. The utility model provides a foam aluminum composite sound absorbing board for mine, includes two-layer foam aluminum plate, leave the cavity between the two-layer foam aluminum plate, its characterized in that: still include polyester fiber abatvoix (2), two-layer foamed aluminum plate is closed cell foamed aluminum plate (1), through-hole foamed aluminum plate (3) respectively, closed cell foamed aluminum plate (1), polyester fiber abatvoix (2) and through-hole foamed aluminum plate (3) are set gradually by outside-in, have first cavity (4) between closed cell foamed aluminum plate (1) and the polyester fiber abatvoix (2), have second cavity (5) between polyester fiber abatvoix (2) and through-hole foamed aluminum plate (3).
2. The foamed aluminum composite acoustic panel for mines according to claim 1, wherein: the thickness of the closed-cell foamed aluminum plate (1) is 10mm, and the thickness of the through-cell foamed aluminum plate is 10mm.
3. The foamed aluminum composite acoustic panel for mines according to claim 1, wherein: holes are preset in the closed-pore foamed aluminum plate (1) and the open-pore foamed aluminum plate (3), the holes are uniformly distributed, and the aperture of each hole is 0.05mm-1mm.
4. The foamed aluminum composite acoustic panel for mines according to claim 1, wherein: the closed-pore foam aluminum plate (1), the polyester fiber sound absorbing plate (2) and the through-pore foam aluminum plate (3) are sequentially penetrated by a bolt column (7) of a bolt (6) and are respectively fixed by a nut (8);
the vertical distance between the first cavity (4) and the second cavity (5) is determined by the nut (8).
5. The foamed aluminum composite acoustic panel for mines according to claim 4, wherein fixing pieces (9) are respectively arranged between the nuts (8) on the bolt posts (7) and the surfaces of the closed-cell foamed aluminum plate (1), the upper and lower surfaces of the polyester fiber acoustic panel (2) and the upper and lower surfaces of the through-hole foamed aluminum plate (3).
6. The foamed aluminum composite acoustic panel for mines according to claim 5, wherein: the fixing piece (9) is of a sheet-shaped structure.
7. The foamed aluminum composite acoustic panel for mines according to claim 4, characterized in that the bolt head (10) of the bolt (6) is accommodated in the closed cell foamed aluminum plate (1).
8. The foamed aluminum composite acoustic panel for mines according to claim 1, wherein an iron screw (11) is provided on one side of the through-hole foamed aluminum plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320944539.7U CN219706348U (en) | 2023-04-24 | 2023-04-24 | Foamed aluminum composite acoustic board for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320944539.7U CN219706348U (en) | 2023-04-24 | 2023-04-24 | Foamed aluminum composite acoustic board for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219706348U true CN219706348U (en) | 2023-09-19 |
Family
ID=88005002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320944539.7U Active CN219706348U (en) | 2023-04-24 | 2023-04-24 | Foamed aluminum composite acoustic board for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219706348U (en) |
-
2023
- 2023-04-24 CN CN202320944539.7U patent/CN219706348U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108894360B (en) | Assembled double-steel-plate concrete combined shear wall with embedded damping interlayer and mounting method thereof | |
| CN201620491U (en) | Sound absorption isolation and vibration isolation wall body | |
| CN202380630U (en) | Damping energy-dissipating compound wallboard with steel section keel | |
| CN1837530A (en) | Impact-tolerant noise-insulating warm-keeping light composite wall and construction technique thereof | |
| CN102926335B (en) | Composite noise reduction barrier | |
| CN103526700B (en) | A kind of sound barrier | |
| CN219706348U (en) | Foamed aluminum composite acoustic board for mine | |
| CN221118893U (en) | Externally hung curtain wall silencing structure | |
| CN210856987U (en) | Sound insulation and sound barrier | |
| CN203530871U (en) | Sound barrier fixing structure | |
| CN109610926B (en) | Dustproof protection partition wall device of making an uproar that falls for building land | |
| CN200949274Y (en) | Shockproof lightweight sound insulation thermal insulation composite wall | |
| CN206571250U (en) | A kind of construction of road and bridge security isolation column | |
| CN201722775U (en) | Safe shock-proof building framework | |
| CN213683527U (en) | Road surface construction sound insulation protector | |
| CN210177760U (en) | High-stability sound insulation curtain wall structure | |
| CN219711144U (en) | Anti-seismic building structure and house | |
| CN110670754A (en) | Sound-insulation heat-preservation anti-seismic wall and construction method thereof | |
| CN220598796U (en) | Fireproof acoustic board for central substation | |
| CN221052420U (en) | Sound protection device for open-pore foamed ceramic | |
| CN204940573U (en) | A kind of novel vibration insulation and noise reduction modular construction | |
| CN204510037U (en) | Inorganic compounding acoustical board | |
| CN214329399U (en) | Anti-seismic wall structure based on building engineering | |
| CN215166740U (en) | Building engineering noise insulation | |
| CN213143466U (en) | Building shock isolation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |