CN106892568A - The mineral wool powder and production method and mineral wool of large-scale production mineral wool - Google Patents
The mineral wool powder and production method and mineral wool of large-scale production mineral wool Download PDFInfo
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- CN106892568A CN106892568A CN201710180500.1A CN201710180500A CN106892568A CN 106892568 A CN106892568 A CN 106892568A CN 201710180500 A CN201710180500 A CN 201710180500A CN 106892568 A CN106892568 A CN 106892568A
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- Prior art keywords
- mineral wool
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- powder
- scale production
- cullet
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Classifications
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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
- C03C12/00—Powdered glass; Bead compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
Abstract
The invention discloses the mineral wool powder and production method and mineral wool of a kind of large-scale production mineral wool, mineral wool powder includes the component of following mass parts：75~85 parts of cullet；5~10 parts of borax pentahydrate；1~3 part of soda ash；1~3 part of dolomite；1~3 part of potassium feldspar；1~2 part of potassium carbonate；0.5~1.5 part of sodium nitrate；0.3~1 part of salt；0.5~1 part of sodium sulphate.Low production cost, comprehensive utilization of resources, beneficial to environmental protection：Primary raw material is cullet, and low cost, so as to considerably reduce the price of mineral wool, lifts its product competitiveness, while having processed substantial amounts of cullet, is beneficial to environmental protection；Compression rebound rate >=96.1% of mineral wool；The average fibre diameter of mineral wool is 3.5 μm；Water content≤0.3%；Thermal conductivity factor≤0.032W/ (mK)；Mass loss rate≤4.8%, temperature rise≤3 DEG C in stove, the Persistence flame time is 0s.
Description
Technical field
The present invention relates to a kind of mineral wool powder of large-scale production mineral wool, and mineral wool production method and glass
Cotton.
Background technology
Influenceed by factors such as product performance and costs, requirement of the mineral wool to glass metal can not show a candle to plate glass.In industry
It is interior, in order to improve the melting rate of kiln, reduces cost, the cullet of general addition more than 60% in powder formulation.Glass metal is passed through
The glass fibre crossed below centrifuge high speed rotation wire drawing 8 μm of diameter of formation, the centrifugal glass fibre product of large-scale production is fine
The toughness of dimension is not enough, fiber embrittlement, and mineral wool resilience is not enough, and dust rate is higher.
With the development of society, the range of application of mineral wool is widened rapidly to Aeronautics and Astronautics, family from traditional building field
The fields such as electricity, automobile.Most of enterprise should will also give birth to by the existence for largely producing traditional mid and low-end products maintenance enterprise
High, refined, peak products are produced to improve the core competitiveness of enterprise, therefore tenacity of fibre deficiency, embrittlement, resilience deficiency, dust rate are high
Problem is badly in need of solving.
Specifically mainly need to consider following problem：
1st, three-phase diagram as shown in Figure 1, when glass ingredient is in the phase boundary line in phasor, particularly at eutectic point
When, because system will separate out two or more crystal, interference is mutually produced when forming nucleus structure in the early stage, so as to reduce glass
Tendency towards devitrification, it is difficult to crystallization.Therefore from reducing glass melting temperature and preventing the angle of crystallization, glass ingredient should be selected in phase
Near boundary line or eutectic point.
2nd, bubble is discharged, it is to avoid glass fibre has the defect of bubble.The gas discharged before liquid phase formation can be through
Loose cooperation bed of material discharge, the surface area of batch pile is bigger (thin blanket feed), and partial pressure of the gas in kiln is smaller,
Gas is healed and is easily drained.In addition there are following methods：A, the viscosity for reducing glass metal；B, make bubble volume increase accelerate on
Rise, float on glass metal surface, then rupture disappears；C, the gas component of minute bubbles is set to be dissolved in glass metal, bubble is inhaled
Receive and disappear.
3rd, the viscosity of glass metal is reduced, in addition to glass melting temperature is lifted, fining agent and additive is suitably added.
In traditional glass cotton powder formulation, in addition to feldspar, borax, dolomite, the soda ash except doses, it is usually added into
A large amount of cullet.Although powder unit cost can be reduced, melting rate is lifted.But there is following defect：
1st, add a large amount of cullet most directly influence be cullet chemical composition it is unstable, its main chemical compositions：
SiO272.5%th, CaO9.53%, MgO4.28%, Al2O30.7%th, (Na2O and K2O) 11.8%, different glass has certain
Fluctuation, to being melted in dispensing melting process, being clarified, homogenizing produces extreme influence；
2nd, alkali metal oxide content is relatively low, and alkali metal oxide can provide free oxygen makes O/Si ratios in glass structure
Increase, scission of link occurs, so as to reduce the viscosity of glass, glass is easy to melting, be good cosolvent；
3rd, alkali-metal-oxide content is higher, by taking calcium oxide as an example, Ca2+There is polarization bridging oxygen and weaken the work of silicon oxygen bond
With this is probably one of the reason for it reduces glass metal high-temperature viscosity.But calcium oxide content is excessive in glass, typically makes glass
Material property shortens, fragility increase, this and Ca2+Accumulation effect to structure is relevant, and material property shortens and directly results in glass metal through centrifuge
During wire drawing shapes, it is impossible to the diameter and length of glass fibre are controlled well, to the product of follow-up glass wool product
Moral character can produce extreme influence.
4th, the decomposition of batch, the volatilization of constituent part, the redox reaction of oxide, glass and gas medium and resistance to
The reasons such as the interaction of fiery material can all produce a large amount of gases, and these gases can form countless bubbles.And most of glass
Cotton enterprise most common method is the effect for taking liter high-temperature reduction viscosity acceleration clarification attempt to reach exclusion bubble, but effect
Fruit is very small.
The content of the invention
It is an object of the invention to provide a kind of mineral wool powder of large-scale production mineral wool；
It is a further object to provide a kind of method of large-scale production mineral wool；
A further object of the present invention is to provide a kind of mineral wool of large-scale production.
In order to reach above-mentioned technique effect, the present invention takes following technical scheme：
A kind of mineral wool powder of large-scale production mineral wool, including following mass parts component：75~85 parts of cullet；
5~10 parts of borax pentahydrate；1~3 part of soda ash；1~3 part of dolomite；1~3 part of potassium feldspar；1~2 part of potassium carbonate；Sodium nitrate 0.5~
1.5 parts；0.3~1 part of salt；0.5~1 part of sodium sulphate.
Preferably, described mineral wool powder includes the component of following mass parts：85 parts of cullet；7 parts of borax pentahydrate；
2 parts of soda ash；1 part of dolomite；3 parts of potassium feldspar；1 part of potassium carbonate；1 part of sodium nitrate；0.5 part of salt；0.7 part of sodium sulphate.
Further technical scheme is that described cullet constitutes SiO by the component of following mass percents2：72.5%th,
CaO：9.53%th, MgO：4.28%th, Al2O3：0.7%th, (Na2O and K2O)：11.8%, remaining is inevitable impurity.
Further technical scheme is that described dolomite is made up of the component of following mass percents：MgO：
21.65%th, CaO：30.31%th, CO2：47.65, remaining is inevitable impurity.
Further technical scheme is that described potassium feldspar is made up of the component of following mass percents：SiO2：
64.85%th, Al2O3：19.26%th, Na2O：2.36%th, K2O：12.69%, remaining is inevitable impurity.
Present invention also offers the method for the mineral wool powder large-scale production mineral wool described in use, by mineral wool powder
Prepared according to said components, then will prepare uniform powder and add horse-shoe flame furnace, in thawing at 1400~1430 DEG C of temperature
Clarification.
Present invention also offers the mineral wool that described mineral wool production method is obtained, the compression rebound of described mineral wool
Rate >=96.1%；The average fibre diameter of mineral wool is 3.5 μm；Water content≤0.3%；Thermal conductivity factor≤0.032W/ (mK)；
Combustibility is as follows：Mass loss rate≤4.8%, temperature rise≤3 DEG C in stove, the Persistence flame time is 0s.
The present invention will be further explained below.
Na in mineral wool powder2SO4、NaNO3, during NaCl adds dispensing according to a certain percentage, clarification can reach mineral wool
Ideal glass liquid effect required for production.Na2SO4Decomposition temperature it is higher, belong to high temperature fining agent；NaNO3Generally as oxygen supply
Body is used cooperatively with the oxide that appraises at the current rate, seldom individually using nitrate as fining agent in glass；Gasify volatilization energy during NaCl high temperature
Promote glass metal clarification；Na2SO4、NaNO3, NaCl form compound clarifier according to a certain percentage, in mainly make use of fining agent
Oxygen is clarified, and sulphur clarification and halogen clarify three big clarification advantages, give full play to the cooperative effect and Overlay of three, can reach and hold
The effect of continuous clarification, greatly enhances clarifying ability.Compare arsenic antimony class compound clarifier more green, environmental protection, safety is high
Effect.If not adding above-mentioned three kinds of components or the addition of three kinds of components not to meet proportioning of the invention, cannot produce super
Thin glass fiber, the glass wool product resilience wretched insufficiency produced, fiber embrittlement, dust rate is high.
Soda ash and potassium feldspar are added in mineral wool powder, alkali metal oxide content is lifted, glass knot is made by free oxygen
O/Si ratios increase in structure, and scission of link occurs, so as to reduce the viscosity of glass, promote the exclusion of bubble.By adding appropriate nitric acid
Potassium adjusts the ratio of alkali metal oxide potassium oxide and sodium oxide molybdena, reduces glass metal surface tension, in further promoting glass metal
Bubble discharge.
Appropriate potassium feldspar, potassium feldspar are added in mineral wool powder can increase Al2O3Content improve glass fibre machine
Tool intensity, chemical stability, reduce its tendency towards devitrification, while Na can be brought2O、K2O、SiO2, because potassium feldspar can introduce alkali
Metal oxide, can save the consumption of a part of soda ash.
Appropriate borax pentahydrate is added in mineral wool powder, increases B2O3Content, reduces glass metal viscosity, accelerates clarification
Effect.B2O3Content can greatly improve the production efficiency of smelting furnace 2% or so.Made from borax pentahydrate in the present invention
It is B2O3Source, be because borax decahydrate influences larger, five water sandblasting high costs to the utilization rate of dispensing.
The method of testing of mineral wool performance is as follows：
1st, compression resilience
1.1st, method of testing：MTS-F05-06-A1-2014,5.2.11 are saved
1.2nd, sample size：150mm×150mm；
1.3rd, treatment conditions：Between measurement original thickness → sample is sandwiched in 100mm × 100mm flat boards, 500g → 120 are loaded
DEG C, 1h → room temperature, 2h → (38 ± 2) DEG C, thickness after (95 ± 2) %RH, 22h → room temperature, 1h → measurement test.
2nd, resistance to fungi
2.1st, method of testing：MTS-F05-06-001-A1-2014,5.2.8 are saved
2.2nd, sample size：30mm×30mm；
2.3rd, test condition：(38 ± 2) DEG C, (98 ± 2) %RH, 168h.
3rd, heat aging property
3.1st, method of testing：MTS-F05-06-001-A1-2014,5.2.8 are saved
3.2nd, sample size：30mm×30mm；
3.3rd, test condition：(150 ± 2) DEG C, 168h → normal temperature 2h.
The present invention compared with prior art, with following beneficial effect：
1), low production cost, comprehensive utilization of resources, beneficial to environmental protection：Primary raw material is cullet, low cost, so that significantly
Degree reduces the price of mineral wool, lifts its product competitiveness, while having processed substantial amounts of cullet, is beneficial to environmental protection.
2) large-scale production can, be met, the production efficiency of smelting furnace is improved：By taking the horse-shoe flame furnace of 40 ㎡ as an example, melting rate
3T/ ㎡ days can be reached, that is, produces 120 tons of centrifugally glass-wool products daily.
3), the properties of product of mineral wool are high：The dust rate of glass fibre is low, good toughness, fibre diameter can reach ultra-fine glass
The standard of glass fiber.
Brief description of the drawings
Fig. 1 is Na2O-CaO-SiO2Three-phase diagram.
Specific embodiment
With reference to embodiments of the invention, the invention will be further elaborated.
Embodiment 1：
85 parts of cullet；7 parts of borax pentahydrate；2 parts of soda ash；1 part of dolomite；3 parts of potassium feldspar；1 part of potassium carbonate；Sodium nitrate 1
Part；0.5 part of salt；0.7 part of sodium sulphate.
The component by following mass percents of cullet is constituted：SiO2：72.5%th, CaO：9.53%th, MgO：4.28%th,
Al2O3：0.7%th, (Na2O and K2O)：11.8%, remaining is inevitable impurity.
Dolomite is made up of the component of following mass percents：MgO：21.65%th, CaO：30.31%th, CO2：47.65, its
Remaining is inevitable impurity.
Potassium feldspar is made up of the component of following mass percents：SiO2：64.85%th, Al2O3：19.26%th, Na2O：
2.36%th, K2O：12.69%, remaining is inevitable impurity.
Horse-shoe flame furnace is added after above-mentioned material is well mixed, melting clarifications in 1400 DEG C obtains glass metal.
Glass metal flows into centrifuge, controlling stream plume amount 0.2-1.2T/h, 900-950 DEG C of temperature, centrifugation through platinum bushing plate
By once into fine and secondary into fibre, forming glass fibre, glass fibre suction is collected cotton system to machine by air inducing, then by curing oven
Solidified forming, the glass wool product for being shaped.
The mineral wool of acquisition carries out performance test, and test result is as follows.
The detection data of first batch mineral wool：
The detection data of second lot mineral wool：
The detection data of the 3rd batch mineral wool：
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferably implementation method, embodiments of the present invention are simultaneously not restricted to the described embodiments, it should be appreciated that people in the art
Member can be designed that a lot of other modification and implementation methods, and these modifications and implementation method will fall in principle disclosed in the present application
Within scope and spirit.
Claims (8)
1. a kind of mineral wool powder of large-scale production mineral wool, it is characterised in that the component including following mass parts：Cullet
75~85 parts；5~10 parts of borax pentahydrate；1~3 part of soda ash；1~3 part of dolomite；1~3 part of potassium feldspar；1~2 part of potassium carbonate；Nitre
0.5~1.5 part of sour sodium；0.3~1 part of salt；0.5~1 part of sodium sulphate.
2. the mineral wool powder of large-scale production mineral wool according to claim 1, it is characterised in that including following quality
The component of part：85 parts of cullet；7 parts of borax pentahydrate；2 parts of soda ash；1 part of dolomite；3 parts of potassium feldspar；1 part of potassium carbonate；Sodium nitrate 1
Part；0.5 part of salt；0.7 part of sodium sulphate.
3. the mineral wool powder of large-scale production mineral wool according to claim 1, it is characterised in that described cullet
It is made up of the component of following mass percents：SiO2：72.5%th, CaO：9.53%th, MgO：4.28%th, Al2O3：0.7%th, (Na2O
And K2O)：11.8%, remaining is inevitable impurity.
4. the mineral wool powder of large-scale production mineral wool according to claim 1, it is characterised in that described dolomite
It is made up of the component of following mass percents：MgO：21.65%th, CaO：30.31%th, CO2：47.65, remaining is inevitable
Impurity.
5. the mineral wool powder of large-scale production mineral wool according to claim 1, it is characterised in that described potassium feldspar
It is made up of the component of following mass percents：SiO2：64.85%th, Al2O3：19.26%th, Na2O：2.36%th, K2O：12.69%,
Remaining is inevitable impurity.
6. a kind of method of the mineral wool powder large-scale production mineral wool described in any one of utilization claim 1~5, its feature
It is that mineral wool powder is prepared according to said components, then will prepares uniform powder and add horse-shoe flame furnace, in temperature
Melt clarification at 1400~1430 DEG C.
7. the mineral wool that mineral wool production method according to claim 6 is obtained.
8. mineral wool according to claim 7, it is characterised in that compression rebound rate >=96.1% of described mineral wool；Glass
The average fibre diameter of glass cotton is 3.5 μm；Water content≤0.3%；Thermal conductivity factor≤0.032W/ (mK)；Combustibility is as follows：
Mass loss rate≤4.8%, temperature rise≤3 DEG C in stove, the Persistence flame time is 0s.
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| CN201710180500.1A CN106892568B (en) | 2017-03-23 | 2017-03-23 | The mineral wool powder and production method and mineral wool of large-scale production mineral wool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710180500.1A CN106892568B (en) | 2017-03-23 | 2017-03-23 | The mineral wool powder and production method and mineral wool of large-scale production mineral wool |
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| CN106892568B CN106892568B (en) | 2019-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114249531A (en) * | 2021-12-17 | 2022-03-29 | 陕西华特新材料股份有限公司 | Preparation method of high silica glass solution capable of improving liquid level melting capacity |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090120132A1 (en) * | 2007-11-13 | 2009-05-14 | Jon Frederick Bauer | Composition and method of making a glass product with reduced greenhouse gas emission |
| CN102399056A (en) * | 2011-05-24 | 2012-04-04 | 苏州维艾普新材料有限公司 | Production method for ultrafine ultralight glass heat insulation wool |
-
2017
- 2017-03-23 CN CN201710180500.1A patent/CN106892568B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090120132A1 (en) * | 2007-11-13 | 2009-05-14 | Jon Frederick Bauer | Composition and method of making a glass product with reduced greenhouse gas emission |
| CN102399056A (en) * | 2011-05-24 | 2012-04-04 | 苏州维艾普新材料有限公司 | Production method for ultrafine ultralight glass heat insulation wool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114249531A (en) * | 2021-12-17 | 2022-03-29 | 陕西华特新材料股份有限公司 | Preparation method of high silica glass solution capable of improving liquid level melting capacity |
| CN114249531B (en) * | 2021-12-17 | 2024-01-19 | 陕西华特新材料股份有限公司 | Preparation method of high silica glass melt capable of improving liquid level melting capacity |
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