Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sound-absorbing noise-reducing ceramic assembly

A ceramic and component technology, applied in the field of ceramic components with sound absorption and noise reduction function, can solve the problems of unsatisfactory effect, aging, short service life, etc., and achieve the effect of remarkable sound absorption and noise reduction, good absorption capacity and convenient construction.

Active Publication Date: 2014-07-30
佛山中科产业技术研究院
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main technical measure for road sound absorption and noise reduction is to install sound insulation walls on both sides of the road. The materials used include glass, plastic, metal, rock wool (asbestos) boards, perlite boards, porous ceramic boards, etc., but in actual use There are major deficiencies: for glass, metal, and plastic materials, because of their dense material and smooth surface, they have little absorption of sound, but only play a role in blocking noise, and a large amount of noise still diffuses into the air. The effect of sound absorption and noise reduction is not ideal, and there are problems of corrosion and aging of metal and plastic in the open air, and the service life is short
For rock wool (asbestos) boards and perlite boards, although their porosity is higher and the sound absorption effect is better than that of dense materials, they also have the problem of low strength and easy damage, and rock wool boards will drift away after weathering. fiber dust, damaging the surrounding environment
The porous ceramic plate has high strength and good outdoor weather resistance. It is a promising outdoor sound-absorbing and noise-reducing material. However, the effect of sound-absorbing and noise-reducing is still not ideal, and the construction cost is high, so it has not been widely used.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sound-absorbing noise-reducing ceramic assembly
  • Sound-absorbing noise-reducing ceramic assembly
  • Sound-absorbing noise-reducing ceramic assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048]Weigh raw materials according to the following proportions: plastic clay 21%, kaolin 17%, feldspar powder 33%, quartz powder 15%, sawdust powder 5%, coal gangue powder 9%, a total of 200 kg of ingredients, put into a ball mill and add water ball mill for 12 hours Finally, use a mud press to dehydrate to obtain a plastic mud cake, put the mud cake into a vacuum mud refining machine to practice the mud, remove the air bubbles in the mud and make the water in the mud even, improve the plasticity of the mud, and circulate the mud After three times, the mud bar obtained is put into an aging room for aging for 24 hours. If necessary, plasticizers and body reinforcing agents can be added to the mud.

[0049] Put the stale mud strips into a vacuum extruder to extrude a square honeycomb ceramic billet with a side length of 120 mm. The channel density in the honeycomb ceramics is 200 holes per square inch, and the cross-sectional shape of the channel is square. Cut the ceramic bi...

Embodiment 2

[0051] Weigh raw materials according to the following proportions: plastic clay 21%, kaolin 14%, feldspar powder 23%, quartz powder 25%, carbon powder 6%, fly ash 11%, a total of 200 kg of ingredients, put into a ball mill and add water ball mill for 12 hours Finally, use a mud press to dehydrate to obtain a plastic mud cake, put the mud cake into a vacuum mud refining machine to practice the mud, remove the air bubbles in the mud and make the water in the mud even, improve the plasticity of the mud, and circulate the mud After three times, the mud bar obtained is put into an aging room for aging for 24 hours. If necessary, plasticizers and body reinforcing agents can be added to the mud.

[0052] The obsolete mud strips are put into a vacuum extruder to extrude a square honeycomb ceramic billet with a side length of 120 mm. The channel density in the honeycomb ceramics is 64 holes per square inch, and the channel cross-sectional shape is polygonal (such as image 3 ), use a ...

Embodiment 3

[0056] Weigh raw materials according to the following proportions: plastic clay 18%, soil 20%, feldspar powder 36%, quartz powder 20%, sawdust powder 6%, a total of 200 kg of ingredients, put into a ball mill and add water to ball mill for 12 hours, then use a mud squeezer Dehydration to obtain a plastic mud cake, put the mud cake into a vacuum mud mixer to practice mud, remove the air bubbles in the mud and make the water in the mud even, improve the plasticity of the mud, and after three times of circulating mud, the obtained Put the mud sticks into the aging room for 24 hours.

[0057] Put the stale mud strips into a vacuum extruder to extrude a rectangular honeycomb ceramic billet with a side length of 150×100 mm. The channel density in the honeycomb ceramics is 400 holes per square inch, and the cross-sectional shape of the channels is circular. Use a curved surface cutter to cut the billet into a sound-absorbing and noise-reducing honeycomb ceramic body with an included ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
sizeaaaaaaaaaa
thicknessaaaaaaaaaa
water absorptionaaaaaaaaaa
Login to View More

Abstract

The invention relates to a sound-absorbing noise-reducing ceramic assembly. The sound-absorbing noise-reducing ceramic assembly comprises at least one sound-absorbing noise-reducing ceramic unit; the sound-absorbing noise-reducing ceramic unit is multichannel cellular ceramic, and the channel inner wall of the multichannel cellular ceramic is in a porous structure. The ceramic assembly has excellent sound-absorbing and noise-reducing functions, and is suitable for sound-absorbing space indoor and outdoor, and is especially suitable for being used in outdoor sound-absorbing noise-reducing engineering such as highway, high speed railway, tunnel and subway, and the ceramic assembly has the obvious effect for absorbing sound and reducing noise, and has the advantages of convenient construction, good weatherability and environmental protection.

Description

technical field [0001] The invention relates to the field of ceramic materials among inorganic non-metallic materials and the field of acoustic technology, in particular to ceramic components with sound absorption and noise reduction functions. Background technique [0002] With the development of expressways, high-speed railways, and urban subway traffic, the speed of traffic vehicles is getting faster and faster, and the resulting noise is getting higher and higher, which has a greater impact on the production and life of residents on both sides of the road. Therefore, Therefore, the sound absorption and noise reduction of roads has become an important topic with great development prospects. At present, the main technical measure for road sound absorption and noise reduction is to install sound insulation walls on both sides of the road. The materials used include glass, plastic, metal, rock wool (asbestos) boards, perlite boards, porous ceramic boards, etc., but in actual...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13E01F8/00
Inventor 蔡晓峰席红安于伟东
Owner 佛山中科产业技术研究院
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com