CN104496518B - Ultra-high voltage transformer station fire wall sandstone acoustic board and preparation method thereof - Google Patents
Ultra-high voltage transformer station fire wall sandstone acoustic board and preparation method thereof Download PDFInfo
- Publication number
- CN104496518B CN104496518B CN201410676598.6A CN201410676598A CN104496518B CN 104496518 B CN104496518 B CN 104496518B CN 201410676598 A CN201410676598 A CN 201410676598A CN 104496518 B CN104496518 B CN 104496518B
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- China
- Prior art keywords
- natural sand
- acoustic board
- foaming agent
- sandstone
- sheet material
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Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000004576 sand Substances 0.000 claims abstract description 39
- 239000004088 foaming agent Substances 0.000 claims abstract description 24
- 239000011230 binding agent Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 7
- 239000006260 foam Substances 0.000 claims abstract description 6
- 238000012423 maintenance Methods 0.000 claims abstract description 4
- 239000011827 silicon-based solvent Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000004156 Azodicarbonamide Substances 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims description 3
- 235000019399 azodicarbonamide Nutrition 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 230000001788 irregular Effects 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a kind of ultra-high voltage transformer station fire wall sandstone acoustic board and preparation method thereof；The sandstone acoustic board is made up of natural sand, and being bonded to one by binding agent between natural sand has irregular, interconnected hole between entirety and natural sand；The making side of the sandstone acoustic board comprises the following steps：1) natural sand is uniformly mixed with binding agent and foaming agent；2) mixture mixed is poured into mould, vibration causes mixture is laid in mould to form sheet material；3) sheet material in maintenance mould, makes sheet material drying hardening and foaming agent fully foams and hole is produced between natural sand；4) depanning after the completion of conserving, obtains sandstone sound absorption board finished product.The sandstone acoustic board low frequency absorption coefficient of the present invention is higher, and without fibrous dust pollution question, is adapted to use in transformer station place.
Description
Technical field
The present invention relates to the acoustic board technical field for Noise measarement, and in particular to a kind of ultra-high voltage transformer station fire wall
With sandstone acoustic board and preparation method thereof.
Background technology
As the improvement of people's living standards, people are more and more to the demand of electric power, extra-high voltage power transformation technology is quickly sent out
Exhibition, transformer station's noise inevitably affects the live and work of people.In order to reduce the pollution of Noise upon Environment, fire wall
It is upper that acoustic board is typically installed to reduce the reverberation sound of transformer, to reduce influence of the noise to factory circle.But traditional acoustic board is
The inorfil class material such as mineral wool, sound-absorbing material easily overflows, it is possible to which point discharge produces " corona " phenomenon.Tradition sound absorption
Material can not meet the noise reduction requirement in ultra-high voltage transformer station place.
The content of the invention
In view of this, it is an object of the invention to provide a kind of ultra-high voltage transformer station fire wall sandstone acoustic board and its system
Make method, the sandstone acoustic board low frequency absorption coefficient is higher, and without fibrous dust pollution question, be adapted in transformer station
Place is used.
To reach above-mentioned purpose, the present invention provides following technical scheme：
The invention discloses a kind of ultra-high voltage transformer station fire wall sandstone acoustic board, the sandstone acoustic board main body is by day
Right sand is constituted, and be bonded to one between entirety and natural sand by binding agent between natural sand is formed with irregularly by foaming agent
, interconnected hole.
Further, the binding agent is inorganic silicon-based solvent.
Further, furane resins are added with the inorganic silicon-based solvent.
Further, the modulus of fineness of the natural sand is 1.5~2.
The invention also discloses the preparation method of the ultra-high voltage transformer station fire wall sandstone acoustic board, including following step
Suddenly：
1) natural sand is uniformly mixed with binding agent and foaming agent；
2) by step 1) mixture that mixes is poured into mould, and vibration causes mixture is laid in mould to form plate
Material；
3) curing step 2) sheet material in obtained mould, make that sheet material dries hardening and foaming agent fully foams natural
Hole is produced between sand；
4) depanning after the completion of conserving, obtains sandstone sound absorption board finished product.
Further, the foaming agent is azodicarbonamide foaming agent.
Further, the step 1) in, the consumption of binding agent is the 10%~15% of natural sand quality, the consumption of foaming agent
For the 5%~10% of natural sand quality.
Further, the step 1) in, natural sand first sieves the impurity in natural sand before.
Further, the step 3) in, the method for maintenance is no less than 7 days for spray form water curing at 15~35 DEG C.
By adopting the above-described technical solution, the beneficial effects of the present invention are：
Natural sand is bonded between sheet material, and natural sand by the present invention by binding agent to be produced not by foaming agent foam
Rule, interconnected hole because the presence of these holes, when noise by when noise energy be converted into heat energy so that
There is preferable noise reduction to the noise of low frequency (transformer station's noise is based on below 500Hz noises), while sandstone acoustic board
It is more environmentally-friendly, without fibrous dust pollution question.Therefore, compared with traditional fibre extrudes the acoustic board solidifying to form, this
The sandstone acoustic board of invention is more suitable for transformer station place and used.
Brief description of the drawings
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides drawings described below and carried out
Explanation：
Fig. 1 is the cross-sectional view of the sandstone acoustic board of the present invention.
In figure, 1, natural sand, 2, binding agent, 3, space.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Fig. 1 is the cross-sectional view of the sandstone acoustic board of the present invention, as illustrated, the sandstone acoustic board master of the present invention
Want material to be made up of natural sand 1, an entirety is bonded to by binding agent 2 between natural sand 1, and by foaming agent foam into natural
There is irregular, interconnected hole 3 between sand 1.Below with one embodiment to acoustic board of the invention and its preparation side
Method is further described, on the basis of the present embodiment, and one of ordinary skill in the art can be by specific in the present embodiment
Parameter is expanded, and the claims in the present invention obtained beyond this embodiment limit other parameters, is equally reached this
The effect of invention.
Embodiment
A kind of specific preparation method of the sandstone acoustic board of the present invention comprises the following steps：
1) impurity (soil, waste residue etc.) in the natural sand that modulus of fineness is 1.5~2, screening natural sand is chosen, then by day
Right sand is uniformly mixed with binding agent and foaming agent in compulsory mixer；The binding agent that the present embodiment is used is inorganic silicon
Based solvent, and addition furane resins (making mixture gradually voluntarily harden at normal temperatures), binding agent in inorganic silicon-based solvent
Consumption be natural sand quality 12%；The foaming agent that the present embodiment is used is azodicarbonamide foaming agent, the consumption of foaming agent
For the 8% of natural sand quality.Here binding agent and the consumption of foaming agent be it is optimal implement consumption, the consumption of binding agent can be with
10%~15% any consumption in natural sand quality, the consumption of foaming agent can also be natural sand quality 5%~
10% any consumption, these can realize the purpose of the present invention.
2) by step 1) mixture that mixes is poured into 1000mm × 1000mm × 10mm mould, and vibration causes mixed
Compound, which is laid in mould, forms sheet material；
3) step 2) sheet material in obtained mould spray form water curing 10 days at 30 DEG C, make sheet material dry hardening and
Foaming agent fully foams and hole is produced between natural sand；
4) depanning after the completion of conserving, obtains sandstone sound absorption board finished product.
By test in laboratory, the suction of the sandstone acoustic board that embodiment 1 is made and traditional centrifugally glass-wool acoustic board
Sonic system number is compared as follows：
Acoustic absorptivity contrast table
As seen from the table, embodiment 1 make sandstone acoustic board below 500Hz frequency band, than conventional centrifugal glass
The acoustically effective of cotton acoustic board is good.
The sandstone acoustic board of the present invention when making, can according to the test result in actual apertures lyriform pore footpath after extemporaneous preparation,
The consumption of foaming agent is adjusted, to ensure that pore size and hole are interconnected；And should be ensured that depanning after the maintenance of sandstone acoustic board
Not losing fangle when mobile.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (1)
1. a kind of preparation method of ultra-high voltage transformer station fire wall sandstone acoustic board, it is characterised in that：The sandstone acoustic board
Main body is made up of natural sand, and be bonded to one between entirety and natural sand by binding agent between natural sand is made up not of foaming agent
Rule, interconnected hole；The binding agent is the inorganic silicon-based solvent added with furane resins；The foaming agent is even
Azodicarbonamide foaming agent；The modulus of fineness of the natural sand is 1.5~2；
Preparation method comprises the following steps：
1) natural sand is uniformly mixed with binding agent and foaming agent；
2) by step 1) mixture that mixes is poured into mould, and vibration causes mixture is laid in mould to form sheet material；
3) curing step 2) sheet material in obtained mould, make that sheet material dries hardening and foaming agent fully foams in natural sand
Between produce hole；
4) depanning after the completion of conserving, obtains sandstone sound absorption board finished product；
The step 1) in, the consumption of binding agent is the 12% of natural sand quality, and the consumption of foaming agent is the 8% of natural sand quality；
The step 1) in, natural sand first sieves the impurity in natural sand before；
Step 3) in, the method for maintenance is spray form water curing at 30 DEG C 10 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676598.6A CN104496518B (en) | 2014-11-21 | 2014-11-21 | Ultra-high voltage transformer station fire wall sandstone acoustic board and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676598.6A CN104496518B (en) | 2014-11-21 | 2014-11-21 | Ultra-high voltage transformer station fire wall sandstone acoustic board and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104496518A CN104496518A (en) | 2015-04-08 |
| CN104496518B true CN104496518B (en) | 2017-09-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410676598.6A Active CN104496518B (en) | 2014-11-21 | 2014-11-21 | Ultra-high voltage transformer station fire wall sandstone acoustic board and preparation method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692824A (en) * | 2014-12-17 | 2015-06-10 | 国家电网公司 | Sandstone acoustic board used in transformer substation |
| CN105272124A (en) * | 2015-09-18 | 2016-01-27 | 湖北省磊源石业有限公司 | Sandstone wall decorative material and production method thereof |
| CN106517910A (en) * | 2016-11-10 | 2017-03-22 | 广东电网有限责任公司电力科学研究院 | Sound absorbing material and preparation method thereof |
| CN109208840A (en) * | 2017-06-30 | 2019-01-15 | 正升环境科技股份有限公司 | With decorative polymer particle sound-absorbing material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603247A (en) * | 2012-03-18 | 2012-07-25 | 柳州汉西鸣建材发展有限公司 | Concrete acoustic material and manufacturing method thereof |
| CN202509419U (en) * | 2011-12-21 | 2012-10-31 | 中铁第四勘察设计院集团有限公司 | High-strength pearl stone sharp-split acoustical tile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903608B (en) * | 2012-12-27 | 2018-12-25 | 浙江艾迪雅汽车部件新材料有限公司 | A kind of efficient acoustic material and preparation method thereof |
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2014
- 2014-11-21 CN CN201410676598.6A patent/CN104496518B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202509419U (en) * | 2011-12-21 | 2012-10-31 | 中铁第四勘察设计院集团有限公司 | High-strength pearl stone sharp-split acoustical tile |
| CN102603247A (en) * | 2012-03-18 | 2012-07-25 | 柳州汉西鸣建材发展有限公司 | Concrete acoustic material and manufacturing method thereof |
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| CN104496518A (en) | 2015-04-08 |
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| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Dieliang Inventor after: Zhang Shanghua Inventor after: Wang Tao Inventor after: Shao Hua Inventor after: Shen Yongpeng Inventor after: Kang Wei Inventor after: Zhao Bingjun Inventor after: Li Yonggui Inventor after: Qi Jianzhao Inventor after: Zhang Guohua Inventor before: Li Yonggui Inventor before: Qi Jianzhao Inventor before: Zhang Guohua |
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| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171114 Address after: 050030 No. 107 Tower North Road, Yuhua District, Hebei, Shijiazhuang Co-patentee after: State Grid Corporation of China Patentee after: ECONOMIC AND TECHNOLOGY RESEARCH INSTITUTE OF STATE GRID HEBEI ELECTRIC POWER COMPANY Co-patentee after: Hebei Province Power Surveying Design & Research Institute Address before: 050031 Changan District, Hebei, China, North Street, building No. 6, No. Patentee before: Hebei Province Power Surveying Design & Research Institute |
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| TR01 | Transfer of patent right |