CN112796244A - Microporous ceramic sound absorption plate for sound barrier - Google Patents
Microporous ceramic sound absorption plate for sound barrier Download PDFInfo
- Publication number
- CN112796244A CN112796244A CN202110136405.8A CN202110136405A CN112796244A CN 112796244 A CN112796244 A CN 112796244A CN 202110136405 A CN202110136405 A CN 202110136405A CN 112796244 A CN112796244 A CN 112796244A
- Authority
- CN
- China
- Prior art keywords
- sound absorption
- sound
- panel
- absorption plate
- barrier
- 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.)
- Pending
Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 78
- 230000004888 barrier function Effects 0.000 title claims abstract description 32
- 239000000919 ceramic Substances 0.000 title claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 5
- 230000001070 adhesive effect Effects 0.000 claims abstract description 5
- 238000009740 moulding (composite fabrication) Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 3
- 229920000742 Cotton Polymers 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 6
- 230000002238 attenuated effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011491 glass wool Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0017—Plate-like elements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0029—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a microporous ceramsite sound absorption plate for a sound barrier. The sound absorption plate is a rectangular panel formed by stirring, pressing and forming and maintaining microporous ceramic particles and an inorganic adhesive, the surface of the panel is provided with continuous grooves which are transversely arranged, and the back of the panel is provided with same longitudinal grooves which are vertically arranged at intervals; after the back surface of the sound absorption plate is fixedly connected with the surface of the sound barrier back plate in an adhering way, the longitudinal groove forms a sound absorption cavity which is vertically communicated with the sound barrier; two sides of the surface of the sound absorption plate are fixed on the support rib columns by two mounting blocks through expansion bolts; the mounting block is an eccentric block with a cylindrical structure, and the density of the sound absorption plate is 600-1300 Kg/m3The strength is 6-15 MPa. The sound absorption board can be made of inorganic non-metallic materials, has no secondary pollution and long service life; the wedge, the cavity and the honeycomb net-shaped communication structure inside the wedge can effectively reduce noise, break through the traditional mode of adopting sound absorption cotton, and can more effectively perform frequency division treatment on the noise.
Description
Technical Field
The invention belongs to the technical field of road running noise treatment, particularly belongs to a noise treatment technology of a high-speed railway, and particularly relates to a microporous ceramic sound absorption plate for a sound barrier.
Background
With the progress of society and the development of cities, a great deal of traffic facilities such as highways, railways, urban rail transit and the like are built, great convenience is brought to outgoing of people, noise pollution is brought to surrounding residents, the living quality of the residents is seriously influenced, and various sound barrier plates are required to be installed on two sides of the roads in order to improve the living environment of the residents. The existing sound barrier is mostly made of metal plates, and the absorption effect of the existing sound barrier cannot meet the requirements of sound absorption and noise reduction of a wider high-speed railway; glass wool is also used as a sound absorption material, and is easy to loosen and fall off, so that the sound absorption effect is finally reduced, while inorganic nonmetallic materials used for the outdoor sound barrier comprise a foam cement sound absorption board, a rock wool sound absorption board, a perlite sound absorption board and the like, and the inorganic materials are fireproof and corrosion-resistant, but are brittle and poor in sound absorption performance. Secondly, the existing sound barrier has a single structure, the best sound absorption and noise reduction effect is realized without fully utilizing a space structure, and the sound absorption effect is attenuated year by year under a long-time working state.
Disclosure of Invention
The present invention discloses a microporous ceramic sound-absorbing panel for a sound barrier according to the shortcomings of the prior art. The invention aims to provide a high-strength light-weight inorganic non-metallic material sound-absorbing board and a preparation process thereof.
The invention is realized by the following technical scheme:
a micropore ceramic acoustic baffle for sound barrier, the acoustic baffle installation is fixed in between the adjacent support rib post and constitutes the sound barrier who sets up in the road both sides with the backplate, its characterized in that:
the sound absorption board is a rectangular panel formed by stirring, pressing and forming and maintaining microporous ceramic particles and an inorganic adhesive, the surface of the panel is provided with continuous grooves which are transversely arranged, and the back of the panel is provided with same longitudinal grooves which are vertically arranged at intervals.
After the back surface of the sound absorption plate is fixedly connected with the surface of the sound barrier backboard in an adhering mode, the longitudinal groove forms a sound absorption cavity which is vertically communicated with the sound barrier.
The longitudinal grooves arranged at intervals on the back of the sound absorption plate are semicircular grooves or semi-arc grooves.
The transversely-arranged continuous grooves on the surface of the sound absorption panel are continuous arc-shaped, trapezoidal or triangular grooves.
Two sides of the surface of the sound absorption plate are respectively fixed on the supporting rib columns by two mounting blocks through expansion bolts.
The mounting block is an eccentric block with a cylindrical structure, and an eccentric hole with a through hole structure is arranged on the side of the circle center of the cylinder; the two mounting blocks at the same side are tightly matched and fixed with the rib column through the continuous arc-shaped inclined planes which are symmetrical up and down on the surface of the sound absorption plate. The mounting block is a cylindrical structure made of elastic material.
The density of the sound absorption plate is 600-1300 Kg/m3The strength is 6-15 MPa.
The sound absorption plate is made of the microporous ceramic particle material with the three-dimensional reticular pore structure which is in disordered communication, a large number of micropores which are widely distributed are contained in the sound absorption plate material, the micropores are mutually connected, so that sound waves can enter the micropores more easily to be attenuated, the sound absorption effect is excellent, the sound absorption plate is more weather-proof and long in service life compared with a metal material, and compared with a glass wool material, the sound absorption plate made of the microporous ceramic particle material cannot pollute the environment again in the using process.
The surface of the sound absorption plate manufactured by calendaring molding is provided with continuous grooves which are transversely arranged, and the back surface of the panel is provided with same longitudinal grooves which are vertically arranged at intervals; the surface of the sound absorption plate is provided with the wedges formed by the continuous grooves, so that the sound absorption surface area can be effectively increased, incident sound waves can generate a sound path difference, the sound waves are attenuated in the transmission process, the sound waves are mutually interfered, and the noise is reduced; the longitudinal groove on the back surface of the panel of the sound absorption plate is bonded with the back plate to form a cavity, so that sound waves are reflected and absorbed back and forth between the back plate and the sound absorption plate, and the purpose of sound attenuation is achieved; the sound absorption plate can effectively absorb high, medium and low frequency noise, realize frequency division treatment on the noise by adjusting the size and the material of the sound absorption plate, and effectively and selectively absorb the sound with different frequencies by adjusting the sizes of the ceramic particles, the wedges and the cavities with different micropore apertures so as to achieve the effect of frequency division treatment.
The invention has the following beneficial effects: the sound absorption board can be made of inorganic non-metallic materials, has no secondary pollution and long service life; the wedge, the cavity and the honeycomb net-shaped communication structure inside the wedge can effectively reduce noise, break through the traditional mode of adopting sound absorption cotton, and can more effectively perform frequency division treatment on the noise.
Drawings
FIG. 1 is a schematic plan view of a cellular sound barrier including sound absorbing panels;
FIG. 2 is a schematic cross-sectional view of the sound barrier, and a schematic cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic plan view of the sound absorbing panel of the present invention;
FIG. 4 is a schematic cross-sectional view taken along line D-D of FIG. 3;
FIG. 5 is a schematic cross-sectional view C-C of FIG. 3;
FIG. 6 is a partially enlarged schematic view of the sound-absorbing panel mounting structure of the present invention;
FIG. 7 is an enlarged partial cross-sectional view of the sound-absorbing panel mounting structure of the present invention, and a view of a cross-sectional structure of B-B in FIG. 6;
FIG. 8 is a schematic plan view of the mounting block of the present invention;
fig. 9 is a schematic cross-sectional structure of the mounting block of the present invention.
In the figure, 1 is a sound absorbing panel, 2 is a support rib column, 3 is an eccentric block, 4 is an expansion bolt, 5 is a back plate, 6 is a coupling bolt, 7 is a longitudinal groove, 8 is a continuous groove, and 9 is an eccentric hole.
Detailed Description
The present invention is further described below in conjunction with the following detailed description, which is intended to further illustrate the principles of the invention and is not intended to limit the invention in any way, but is equivalent or analogous to the present invention without departing from its scope.
With reference to the attached drawings.
The sound absorption plate 1 is installed and fixed between adjacent support rib columns 2 and forms a sound barrier arranged on two sides of a road together with a back plate 5. The sound absorption plate 1 is a rectangular panel formed by stirring, pressing and forming and maintaining microporous ceramic particles and an inorganic adhesive, the surface of the panel is provided with continuous grooves 8 which are transversely arranged, and the back of the panel is provided with same longitudinal grooves 7 which are vertically arranged at intervals.
After the back surface of the sound absorption plate 1 is fixedly connected with the surface of the sound barrier back plate 5 in an adhering mode, the longitudinal groove 7 forms a sound absorption cavity which is vertically communicated with the sound barrier.
As shown in the figure, the longitudinal grooves 7 spaced on the back surface of the sound-absorbing panel 1 are semicircular grooves or semi-arc grooves.
As shown in the figures, the surface of the panel 1 has a continuous groove 8 in the shape of a continuous circular arc, trapezoid or triangle. In the present illustration, this is a continuous circular arc shaped groove.
As shown in the figure, the two sides of the surface of the sound absorption plate 1 are both fixed on the supporting rib columns 2 by two mounting blocks through expansion bolts 4. The mounting block is an eccentric block 3 with a cylindrical structure, and an eccentric hole 9 with a through hole structure is arranged on the circle center side of the cylinder; the two mounting blocks at the same side are tightly matched and fixed with the rib column through the continuous arc-shaped inclined planes which are symmetrical up and down on the surface of the sound absorption plate 1. The mounting block is a cylindrical structure made of an elastic material.
The density of the sound absorption board 1 is 600-1300 Kg/m3The strength is 6-15 MPa.
The continuous groove 8 on the surface of the sound absorption plate 1 adopts an arc, trapezoid or triangular structure, the continuous groove 8 can increase the surface area of the sound absorption plate 1 and increase the propagation path of incident sound waves, so that the sound waves can be gradually attenuated in the material
The semicircular groove or the semi-arc-shaped groove of the longitudinal groove 7 on the back surface of the sound absorption plate 1 forms a cavity with the back plate 5, so that the weight of the sound absorption plate can be reduced, the surface density can be reduced, and sound waves can be reflected back and forth in the cavity to achieve the purpose of sound attenuation.
The sound absorption plate 1 is fixedly connected with the back plate 5 through bonding, and is fixed with the rib columns 2 through eccentric rubber blocks.
The sound absorption plate 1 is made of inorganic non-metal materials, and the thickness of the sound absorption plate is adjusted by changing the density of the materials and the sizes of the wedges and the cavities, so that the frequency division treatment of sound can be realized.
The sound absorption plate 1 is manufactured by uniformly stirring the base material, adding the base material into the die frame, pressing the base material by the die pressing head, vibrating the base material in the pressing process, demolding and maintaining the base material after forming, and has the advantages of high production yield, stable size of the sound absorption plate, high mechanization degree and easiness in factory prefabrication production.
The installation method of the sound absorption board comprises the following steps: and (3) coating the sound absorption plate 1 on the back rib with a glue material, and then inserting the sound absorption plate 1 into the cavity and compressing. Then fixing the rubber eccentric block 3 on the rib column 2 through the expansion bolt 4, rotating the rubber eccentric block 3, pressing the sound absorption plate 1 tightly, and fixing the rubber eccentric block 3 doubly.
Claims (8)
1. The utility model provides a micropore ceramic acoustic baffle for sound barrier, the acoustic baffle installation is fixed in between the adjacent support rib post and constitutes the sound barrier who sets up in the road both sides with the backplate, its characterized in that:
the sound absorption board is a rectangular panel formed by stirring, pressing and forming and maintaining microporous ceramic particles and an inorganic adhesive, the surface of the panel is provided with continuous grooves which are transversely arranged, and the back of the panel is provided with same longitudinal grooves which are vertically arranged at intervals.
2. The microporous ceramic sound absorption panel for a sound barrier of claim 1, wherein: the back of the sound absorption plate is fixedly connected with the surface of the sound barrier backboard in an adhesive mode, and the longitudinal groove forms a sound absorption cavity which is vertically communicated with the sound barrier.
3. The microporous ceramic sound absorption panel for a sound barrier of claim 2, wherein: the longitudinal grooves arranged at intervals on the back of the sound absorption plate are semicircular grooves or semi-arc grooves.
4. The microporous ceramic sound absorption panel for a sound barrier of claim 3, wherein: the transversely-arranged continuous grooves on the surface of the sound absorption panel are continuous arc-shaped, trapezoidal or triangular grooves.
5. The microporous ceramic sound absorption panel for a sound barrier according to any one of claims 1 to 4, wherein: and two sides of the surface of the sound absorption plate are fixed on the support rib columns by two mounting blocks through expansion bolts.
6. The microporous ceramic sound absorption panel for a sound barrier of claim 5, wherein: the mounting block is an eccentric block with a cylindrical structure, and an eccentric hole with a through hole structure is arranged on the side of the circle center of the cylinder; the two mounting blocks at the same side are tightly matched and fixed with the rib column through the continuous arc-shaped inclined planes which are symmetrical up and down on the surface of the sound absorption plate.
7. The microporous ceramic sound absorption panel for a sound barrier of claim 6, wherein: the mounting block is a cylindrical structure made of elastic material.
8. The microporous ceramic sound absorption panel for a sound barrier of claim 6, wherein: the density of the sound absorption plate is 600-1300 Kg/m3The strength is 6-15 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110136405.8A CN112796244A (en) | 2021-02-01 | 2021-02-01 | Microporous ceramic sound absorption plate for sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110136405.8A CN112796244A (en) | 2021-02-01 | 2021-02-01 | Microporous ceramic sound absorption plate for sound barrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112796244A true CN112796244A (en) | 2021-05-14 |
Family
ID=75813365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110136405.8A Pending CN112796244A (en) | 2021-02-01 | 2021-02-01 | Microporous ceramic sound absorption plate for sound barrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112796244A (en) |
-
2021
- 2021-02-01 CN CN202110136405.8A patent/CN112796244A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108729367B (en) | Compound sound barrier structure based on phononic crystal | |
| CN104264596A (en) | Particle sound barrier and sound absorption and insulation barrier board thereof | |
| CN203923811U (en) | A kind of haydites of book structure abatvoix | |
| CN104727242B (en) | Railway board plug type super high strength concrete micropore ceramics compound sound barrier cell board | |
| CN111058391A (en) | Novel sound barrier containing resonant cantilever beam | |
| CN201746783U (en) | High speed railway sound barrier device | |
| CN103526700B (en) | A kind of sound barrier | |
| CN101881008A (en) | Environmental-friendly and multifunctional recycled concrete sound barrier panel | |
| CN201943018U (en) | Plate-inserted metal sound barrier | |
| CN212426813U (en) | Compound sound barrier structure based on phononic crystal | |
| CN215252416U (en) | Microporous ceramic sound absorption plate for sound barrier | |
| CN210561803U (en) | Double-sided sound absorption board | |
| CN112796244A (en) | Microporous ceramic sound absorption plate for sound barrier | |
| CN110258372A (en) | A kind of double-faces acoustical board | |
| CN100545906C (en) | Energy conversion material of sound absorption | |
| CN203420187U (en) | Track acoustic board device | |
| CN204898443U (en) | Novel railway roadbed acoustic baffle | |
| CN204875576U (en) | Protective screen is handled to wedge noise | |
| CN103046480A (en) | Complete aluminum pierced noise-absorbing plate | |
| CN201704637U (en) | Sound barrier | |
| CN213508110U (en) | UHPC-micropore ceramic sound-absorbing material integrated integral sound barrier | |
| CN114855660A (en) | Phononic crystal sound absorber, sound barrier and using and mounting method | |
| CN210597074U (en) | Combined ultra-high strength concrete-micropore ceramic composite sound barrier | |
| CN210315269U (en) | Light high-strength environment-friendly non-metallic sound barrier | |
| CN208279520U (en) | A kind of ballast bed of track abatvoix |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210916 Address after: No. 1224, 12 / F, building 1, No. 56, Tianhui middle street, high tech Zone, Chengdu, Sichuan 610000 Applicant after: CHENGDU ZHONGHONG RAIL TRANSIT ENVIRONMENTAL PROTECTION INDUSTRY Co.,Ltd. Applicant after: Sichuan Road and Bridge (Group) Co., Ltd. Applicant after: SICHUAN HIGHWAY PLANNING, SURVEY AND DESIGN INSTITUTE Ltd. Address before: No. 1224, 12 / F, building 1, No. 56, Tianhui middle street, high tech Zone, Chengdu, Sichuan 610000 Applicant before: CHENGDU ZHONGHONG RAIL TRANSIT ENVIRONMENTAL PROTECTION INDUSTRY Co.,Ltd. |