CN107200473A - A kind of foam glass sound absorbing products and preparation method thereof - Google Patents
A kind of foam glass sound absorbing products and preparation method thereof Download PDFInfo
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- CN107200473A CN107200473A CN201710582087.1A CN201710582087A CN107200473A CN 107200473 A CN107200473 A CN 107200473A CN 201710582087 A CN201710582087 A CN 201710582087A CN 107200473 A CN107200473 A CN 107200473A
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- glass
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- absorbing products
- foam glass
- foaming
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/08—Other methods of shaping glass by foaming
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/04—Opacifiers, e.g. fluorides or phosphates; Pigments
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Glass Compositions (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention relates to sound control glass technical field, specifically a kind of foam glass sound absorbing products and preparation method thereof, it is characterised in that is prepared from using the raw material of following percentage by weight：Cullet 95%~97%；Carbon Dioxide calcium 1.91%~3.19%；Pigment 0.08%~0.14%；Opal glass block 1.01%~1.67%.The present invention compared with the existing technology, using building waste cullet as raw materials for production, had both reduced pollution of the cullet to environment, turned waste into wealth again, and be greatly reduced the production cost of product, economic benefit is obvious；A grades of product is non-ignitable, and security is guaranteed, and is used in the noise reduction of special occasions, solves the problems, such as the influence of Noise upon Environment；Material is durable in use, and construction and installation are convenient, lifelong Maintenance free maintenance, is that client reduces substantial amounts of later period maintenance expense, use cost greatly reduces；And preparation technology is simple, the properties of the sound absorbing products prepared reach excellent.
Description
Technical field
The present invention relates to sound control glass technical field, specifically a kind of foam glass sound absorbing products and its preparation side
Method.
Background technology
Foam glass product is largely divided into three major classes, 1, insulation class-be mainly characterized by the rate of closed hole of bubble up to 90% with
On black material, the black material is because making foaming agent of carbon black, therefore in black；2nd, abrasive material class-be mainly characterized by closing for bubble
Porosity adds pigment up to more than 90% color material with atypical foaming agent；3rd, the percent opening of sound absorption class-be mainly characterized by bubble reaches
40% material to enamel, adds pigment with atypical foaming agent.
The performance indications of general foam glass sound absorbing products are as follows：
1st, the density of foam glass sound-absorbing material is general in 300Kg/m3Left and right is proper, because this material is fragility material
Material, certain wearability will be had by being attached to surface when being used on indoor wall or roof, too loose if density is too low, cell wall
Too thin, the wearability of material is just poor, and surface is easy to wear, efflorescence, and the acoustic absorptivity of the long material of time one can be reduced, influence sound absorption effect
Really.If density is too big, the deadweight of material is just weighed, and the bonding requirements to material are high, in particular for the stickup on roof.
2nd, the compression strength of foam glass sound-absorbing material typically requires to be more than 0.5MPa, and the higher the better, mainly considers material
Surface impact resistance ability in use, when as ornament materials bloomed on surface line when it is non-breakable, it is ensured that product it is long-term
It is safe and stable, use.But because being perforate product, to improve compression strength is also a difficult point.
3rd, the apparent porosity of foam glass sound-absorbing material, is the important indicator of material acoustically effective, and it is with simpler
Detection method reflect the acoustically effective of material indirectly, typically require the apparent porosity of material more than 40%, could be quite
In the material acoustic absorptivity more than 0.4.
4th, the acoustic absorptivity of foam glass sound-absorbing material, is the direct reflection of material acoustically effective, and method of testing has standing wave
Tube method and Reverberation room method, the former is simpler relative to the latter's method, and sample is also few, but test result precision be not so good as after
Person, when occurring quality ruling, is defined by Reverberation room method.
Sound-absorbing material is widely used in the occasions such as cinema, arenas, industrial machine room, transformer station, but most
Sound-absorbing material is all organic foam material, there is incendive safety problem, especially can not in the higher occasion of fire protection requirement
Use.With the development of society, people are to environment and the requirement more and more higher of safety.Market needs a kind of existing sound absorption function again
It will not burn, the sound-absorbing material of safety and environmental protection.
The country is related to the report of the research, exploitation and technology of preparing document of foam glass sound-absorbing material product, but some
It is to be manufactured using special new glass, the cost of product is very high, the acceptance level in market is than relatively low, marketing difficulty；Have
It is the product based on decoration a bit, without the performance required by good sound-absorbing material；Some are the special closed pores of insulation
Foam glass material.Many technologies are real to utilize the high-quality sound absorption bubble of discarded glass manufacture also simply in the experimental study stage
Foam glass product, and the technology report of large-scale production is also rare.Such as：
Patent No. ZL 201410153796.4, a kind of energy-saving open celled foam glass and preparation method thereof, feature：This is special
Sharp technology has obtained the data of some performance indications after testing also with produced from waste glass sound-absorbing foam glass：Apparent density：
160Kg/m3, compression strength：0.5MPa, apparent porosity：50%；Acoustic absorptivity (standing-wave-tube method)：Low frequency：0.21, high frequency：
0.51.In terms of the detection data of the invention, although its leading indicator all reaches standard requirement, but it is not high enough, it is average to inhale
Sonic system number only has 0.36, is less than 0.4, and this is not high relevant with the apparent porosity of material；In addition, apparent density, compression strength
Also it is not high.And this inventive technique is also in the sample development stage, there is a segment distance from industrialized production.
Patent No. ZL 201310377590.5, a kind of smelting silicon waste residue foam pyroceram and preparation method thereof, it is to utilize smelting
Silicon waste residue makes crystallite foam glass, for building the material with industrial heat preservation, has its positive as twice laid, environmental protection
Meaning.But its whole process route is long, secondary high-temperature is melted, the energy consumption of sintering process is higher.It is that first smelting silicon is given up
Slag and auxiliary agent mixing, in stove with 1500 DEG C of high-temperature fusions, clarification, cooling, crush, make making foam glass basic glass
Glass raw material, crystallite foam glass product, therefore cost are made further according to the manufacture method dispensing of foam glass, milling, sintering
Compare high.Again because the density ratio of devitrified glass is larger, up to 2500kg/m3, the density of the crystallite foam glass made also will be
500~800kg/m3, internal structure is the abscess of closed pore, to do based on the foam glass of thermal-insulating type, it is adaptable to industrial pipeline, storage
The insulation of tank and the enclosure wall or partition wall of the insulation of building band, it is impossible to as sound-absorbing material.
Patent No. ZL 201210132076.0, one kind utilizes discarded fiberglass reinforced alkyd resin moulding material production foam glass
The method of glass, it is so that discarded object --- glass fibre-reinforced phenolic resin moulding compound and cullet make foam glass as raw material
Glass, by the use of the glass fibre in discarded object as part material glass, the carbon black produced after being burnt using organic matter phenolic resin
As the supplement of foaming agent, to make foam glass, product cost is both reduced, discarded object is make use of again, protect environment, skill
Art route is reasonable.But it can be seen that density from the testing result of its sample：140kg/m3Left and right, thermal conductivity factor：0.04w/
(mk), this be a low-density thermal-insulating type closed-cell foam glass, rather than sound-absorbing material.In addition, can be with its explanation
Find out, experiment is carried out in Muffle furnace, it is seen that the technology also in experimental stage, also has distance with scale industrial production.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, makes foam glass sound-absorbing material using discarded glass, together
When, original foam glass leftover pieces on the market can also be used, the cost of product is reduced, for market provide it is inorganic, non-ignitable,
Safe and effective sound absorbing products.
To achieve the above object, a kind of foam glass sound absorbing products are designed, it is characterised in that use following percentage by weight
Raw material be prepared from：
Described opal glass block is, by the foam glass leftover pieces: the cullet separately taken: auxiliary agent is with 70: 30 after crushing:
After 0.3 weight is than being mixed, into temperature of the stove at 800~900 DEG C and melting under the atmosphere for having air, then cool down
Opal glass block is made；Described auxiliary agent is antimony oxide.
Described cullet includes any one or more of plate glass, container glass, teletron glass.
The described cullet separately taken be plate glass, container glass, teletron glass any one or more.
Described pigment uses the non-discoloring resistant to elevated temperatures industrial pigment of inorganic, 1000 DEG C of high temperature.
Described pigment be cobalt green JF-B5003, cobalt blue JF-B2805, titanium yellow JF-B5302, titanium chromium palm fibre JF-B2402 or
Titanium chrome black JF-A2901 pigment.
A kind of preparation method of foam glass sound absorbing products, it is characterised in that use following preparation process：
(1) opal glass powder, is ground：Described opal glass block is crushed in small ball mill particle diameter is made for 2~3mm
Opal glass powder；
(2), compound abrasive：By broken cullet, pigment in big ball mill, grind 400-630 minutes, add and grind
Opal glass grinding 15-45 minutes, obtain mixed powder；
(3), sampling detection：When reaching the milling time of technique initialization, the fineness of sampling detection mixed powder, it is desirable to >=
The fineness of 95% mixed powder passes through 200 mesh standard sieve nets；If not up to standard, then continue to grind 15 minutes；Untill up to standard；
(4), sieve：Sieving, extracting screen underflow obtains mixed material powder；
(5), foam sintering processes：Mixed material powder is put into mold box, then by mold box according to set time between
Every, one by one be pushed into foaming kiln in, following four phase process is carried out successively：51st, the pre-heat treatment：Carry out under reducing atmosphere
60min is preheated, and temperature is heated to 820 DEG C from 560 DEG C, and heating rate is 4.33 DEG C/min；52nd, foaming sintering：From 820 DEG C of heating
To 870 DEG C of progress 40min foaming, heating rate is 1.25 DEG C/min；53rd, stable processing：900 DEG C of progress are heated to from 870 DEG C
40min is stable to be handled, and heating rate is 0.75 DEG C/min；54th, cooling is handled：650 DEG C of progress 60min coolings are down to from 900 DEG C
Processing, rate of temperature fall is 4.17 DEG C/min；
(6), it is stripped：The mold box after foaming is finished is taken out out of foaming kiln, and is stripped, foaming product is taken out；
(7), make annealing treatment：Foaming product is put into annealing furnace, dropping to room temperature to reduce by 18 DEG C of speed per hour enters
Row annealing, the inlet temperature of described annealing is 670 DEG C, obtains apparent porosity up to more than 60% porous system
Product.
The interval time of described interval push-in is 2 minutes.
The present invention compared with the existing technology, with following advantage：
1st, social benefit：Using building waste cullet as raw materials for production, the sound-absorbing material of reduction noise is produced, was both reduced
Pollution of the cullet to environment, turns waste into wealth again, solves the problems, such as the influence of Noise upon Environment, and this materials A level is non-ignitable, is used in
The noise reduction of special occasions, security is guaranteed；
2nd, economic benefit：Due to doing raw material using discarded glass, the production cost economic benefit of product is greatly reduced
Substantially, this material is durable in use, and construction and installation are convenient, lifelong Maintenance free maintenance, and substantial amounts of later stage dimension can be reduced for client
Expense is repaiied, the use cost of client greatly reduces；
3rd, preparation technology is simple, and the sound absorbing products prepared properties reach it is excellent.
Brief description of the drawings
The absorption spectrum curve figure for the glass sound absorbing products that Fig. 1 is prepared for the present invention.
Embodiment
The present invention is further described through with reference to embodiment.
Cullet includes times of plate glass, all container glasses that can be bought on the market, teletron glass in the present invention
Meaning is one or more.Wherein, plate glass is also referred to as white glass or clear glass, and its chemical composition typically belongs to sodium-calcium-silicate
Glass, its compositing range is：SiO2：70~73wt%；Al2O3：0~3wt%；CaO：6~12wt%；MgO：0~4wt%；
Na2O+K2O：12~16wt%.
The leftover pieces of foam glass, including conventional foam glass, quartz foam glass, lava foam glass at present on the market
Glass.
Embodiment 1
Raw material prepares：
Wherein, cullet is primary raw material, Carbon Dioxide calcium as foaming agent, titanium chromium palm fibre pigment be as pigmented tinting,
The effect of opal glass block is the density for adjusting percent opening and material.
Opal glass block is will to take foam glass leftover pieces, the cullet separately taken, antimony oxide after crushing in the present invention,
By the leftover pieces of foam glass: the cullet: antimony oxide=70 separately taken: after 30: 0.3 weight is than mixing, into stove
With 800~900 DEG C of temperature and melting under the atmosphere for having air, the opal glass block being made after then cooling down.
Specific preparation method is as follows：
The 1st, opal glass block is crushed to the opal glass powder for being made that particle diameter is 2~3mm in small ball mill；
2nd, broken cullet, the brown pigment of titanium chromium are ground 450 minutes in big ball mill, adds the opal glass ground
Grinding 30 minutes, obtains mixed powder；
3rd, sampling detection fineness, until the fineness of >=95% mixed powder reached 200 mesh standard sieve nets；If do not reached
Mark, then continue to grind 15 minutes, untill up to standard；
4th, sieve, extracting screen underflow obtains mixed material powder；
5th, mixed material powder is put into mold box, a mold box is then pushed at intervals of two minutes and is entered in foaming kiln, is entered successively
The following four sections of processing of row：51st, the pre-heat treatment：60min preheatings are carried out under reducing atmosphere, and temperature is heated to 820 DEG C from 560 DEG C,
Heating rate is 4.33 DEG C/min；52nd, foaming sintering：870 DEG C of progress 40min foaming are heated to from 820 DEG C, heating rate is
1.25℃/min；53rd, stable processing：900 DEG C are heated to from 870 DEG C and carries out that 40min are stable to be handled, heating rate is 0.75 DEG C/
min；54th, cooling is handled：650 DEG C are down to from 900 DEG C, 60min cooling processing is carried out, rate of temperature fall is 4.17 DEG C/min.
Foaming kiln in the present invention is the tunnel cave of 50 meters of long continuous-production-types, with electrical heating, is made with burning a small amount of diesel oil
It is divided into continuous four sections, the respectively preheating of 15m length by the difference of temperature in the atmosphere of generation reproducibility, foaming kiln in foaming kiln
Section, the foaming section of 10m length, the stable section of 10m length, the temperature descending section of 15m length, furnace bottom are covered with guide rail, the mould of built-in mixed material powder
Have box under the promotion of hydraulic drive machine, moved ahead on guide rail.A mold box is promoted at intervals of two minutes, and each mold box is from entering
Foaming kiln starts, by preheating, foaming, stably, cooling four sections to go out stove need 200 minutes；
6th, the mold box after foaming is finished is taken out out of foaming kiln, and is stripped, foaming product is taken out；
7th, foaming product is put into annealing furnace, room temperature is dropped to the speed for reducing by 18 DEG C per hour, made annealing treatment,
The inlet temperature of described annealing is 670 DEG C, obtains apparent porosity up to more than 60% porous article.
The specific testing result of foam glass sound absorbing products performance prepared in this example is as follows：
Apparent density：284Kg/m3；
Compression strength：1.9MPa；
Apparent porosity：60%；
Acoustic absorptivity (Reverberation room method)：Low frequency：Average 0.42, high frequency：Average 0.69.
Wherein, apparent density, compression strength, the performance test results of the average open porosity, are examined according to the Shanghai section of building
The examining report that numbering that Co., Ltd provides is JR628-150018 is tested to draw.
And the detection data of acoustic absorptivity, it is, according to Shanghai Construction Science Research Inst., to be provided on April 18th, 2017
The examining report for the relevant sound absorbing capabilities that numbering is HC92F-170143 is drawn.Product of the present invention by standard GB/T/
T20247-2006/ISO354：2003《The acoustic absorptivity measurements of acoustic reverberation room》Testing result, it is 10 between 100Hz-800Hz to take frequency
Individual low-frequency range is detected that average sound absorption coefficient as a result is 0.42；It is 8 high bands between 1000Hz-5000Hz to take frequency
Detected, average sound absorption coefficient as a result is 0.69；The average sound absorption coefficient of 18 total frequency ranges is up to 0.55, referring to Fig. 1.
The acoustically effective of foam glass sound absorbing products is relevant with its percent opening.Generally, the acoustic absorptivity of material with
The raising of percent opening and improve, and percent opening is relevant with the quality and quantity for adding opal glass block.Glass in present invention process
The introducing of glass porcelain block, solves the problems, such as some key problem in technology, has both improved the percent opening of material, and does not influence product density, resists
The index performance of Compressive Strength, can be by adding different amounts of opal glass block, to adjust the balance of each index, and this is ratio of the present invention
Compared with where advantage.Certainly foaming sintering, annealing process are also very crucial.From testing result as can be seen that the present invention uses opal glass
Block improves the percent opening of product, serves good effect.The main performance indications of the foam glass sound absorbing products of preparation
Excellent product requirement has been reached, use requirement is met.And the preparation technology of the present invention has reached 30000m3/ year produces
The large-scale production of line.
In addition, the present invention is made using foam glass leftover pieces, discarded glass and some auxiliary agents through certain technique
Opal glass block, in addition to using cullet is fallen, moreover it is possible to solve the problem of outlet of part foam glass leftover pieces.
Foam glass leftover pieces are produced in finished product cutting process, due to being crossed high temperature sintering, these corners
Material can not be re-used as base glass and add formula, and this is to influence a bottleneck of foam glass large-scale production.And in the present invention
The recycling of foam glass leftover pieces, is also that it can be used as additive, be also side where the key advantages of the present invention
One of outlet that corner material is recycled.
It has not been experimental stage that foam glass sound absorbing products are prepared in the present invention, but has been mass produced.It can
Applied to fire protection requirement it is high, need the occasion of noise reduction, such as larger occasion of computer room, transformer station, subway station noise can be effective
Reduce influence of the room noise to environment.
Claims (8)
1. a kind of foam glass sound absorbing products, it is characterised in that be prepared from using the raw material of following percentage by weight：
2. a kind of foam glass sound absorbing products as claimed in claim 1, it is characterised in that described opal glass block is, by powder
Foam glass leftover pieces after broken: the cullet: auxiliary agent separately taken with 70: 30: 0.3 weight than being mixed after, into stove
Melted at 800~900 DEG C of temperature and the atmosphere for having air, opal glass block is made in then cooling, and described auxiliary agent is three oxygen
Change two antimony.
3. a kind of foam glass sound absorbing products as claimed in claim 1, it is characterised in that described cullet includes flat board glass
Any one or more of glass, container glass, teletron glass.
4. a kind of foam glass sound absorbing products as claimed in claim 2, it is characterised in that the described cullet separately taken is flat
Glass sheet, container glass, teletron glass any one or more.
5. a kind of foam glass sound absorbing products as claimed in claim 1, it is characterised in that described pigment using it is inorganic,
The non-discoloring resistant to elevated temperatures industrial pigment of 1000 DEG C of high temperature.
6. a kind of foam glass sound absorbing products as claimed in claim 5, it is characterised in that：Described pigment is cobalt green JF-
B5003, cobalt blue JF-B2805, titanium yellow JF-B5302, titanium chromium palm fibre JF-B2402 or titanium chrome black JF-A2901 pigment.
7. the preparation method of a kind of foam glass sound absorbing products as described in any one of claim 1~6, it is characterised in that adopt
Use following preparation process：
(1) opal glass powder, is ground：Described opal glass block is crushed to the glass for being made that particle diameter is 2~3mm in small ball mill
Glass porcelain powder；
(2), compound abrasive：By broken cullet, pigment in big ball mill, grind 400-630 minutes, add the glass ground
Glass porcelain grinding 15-45 minutes, obtains mixed powder；
(3), sampling detection：When reaching the milling time of technique initialization, the fineness of sampling detection mixed powder, it is desirable to >=95%
The fineness of mixed powder pass through 200 mesh standard sieve nets；If not up to standard, then continue to grind 15 minutes；Untill up to standard；
(4), sieve：Sieving, extracting screen underflow obtains mixed material powder；
(5), foam sintering processes：Mixed material powder is put into mold box, is then spaced mold box according to set time, one
Each and every one is pushed into foaming kiln, and following four phase process is carried out successively：51st, the pre-heat treatment：It is pre- that 60min is carried out under reducing atmosphere
Heat, temperature is heated to 820 DEG C from 560 DEG C, and heating rate is 4.33 DEG C/min；52nd, foaming sintering：870 DEG C are heated to from 820 DEG C
40min foaming is carried out, heating rate is 1.25 DEG C/min；53rd, stable processing：900 DEG C of progress 40min are heated to from 870 DEG C steady
Fixed processing, heating rate is 0.75 DEG C/min；54th, cooling is handled：650 DEG C of progress 60min cooling processing, drop are down to from 900 DEG C
Warm speed is 4.17 DEG C/min；
(6), it is stripped：The mold box after foaming is finished is taken out out of foaming kiln, and is stripped, foaming product is taken out；
(7), make annealing treatment：Foaming product is put into annealing furnace, dropping to room temperature to reduce by 18 DEG C of speed per hour is moved back
Fire processing, the inlet temperature of described annealing is 670 DEG C, obtains apparent porosity up to more than 60% porous article.
8. preparation method as claimed in claim 7, it is characterised in that the interval time of described interval push-in is 2 minutes.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951260A (en) * | 2014-04-16 | 2014-07-30 | 中国科学技术大学 | Energy-saving open-cell foamed glass and preparation method thereof |
| CN104193178A (en) * | 2014-03-19 | 2014-12-10 | 广西科学院 | High-strength lightweight construction material produced from waste glass in foaming manner and preparation method of high-strength lightweight construction material |
| KR20160023230A (en) * | 2014-08-21 | 2016-03-03 | 삼진하이테크(주) | Nature-friendly material for pavement of slip preventing surface composite for road, nature-friendly material for pavement using them, manufacturing method of that and method for constructing road with slip preventing surface |
-
2017
- 2017-07-17 CN CN201710582087.1A patent/CN107200473B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193178A (en) * | 2014-03-19 | 2014-12-10 | 广西科学院 | High-strength lightweight construction material produced from waste glass in foaming manner and preparation method of high-strength lightweight construction material |
| CN103951260A (en) * | 2014-04-16 | 2014-07-30 | 中国科学技术大学 | Energy-saving open-cell foamed glass and preparation method thereof |
| KR20160023230A (en) * | 2014-08-21 | 2016-03-03 | 삼진하이테크(주) | Nature-friendly material for pavement of slip preventing surface composite for road, nature-friendly material for pavement using them, manufacturing method of that and method for constructing road with slip preventing surface |
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| CN107200473B (en) | 2020-09-11 |
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