CN101638919B - Heat insulating plate made of waste glass and manufacture method thereof - Google Patents
Heat insulating plate made of waste glass and manufacture method thereof Download PDFInfo
- Publication number
- CN101638919B CN101638919B CN2009101468380A CN200910146838A CN101638919B CN 101638919 B CN101638919 B CN 101638919B CN 2009101468380 A CN2009101468380 A CN 2009101468380A CN 200910146838 A CN200910146838 A CN 200910146838A CN 101638919 B CN101638919 B CN 101638919B
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- waste glass
- glass
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a heat insulating plate made of waste glass and a manufacture method thereof. The raw materials comprise the following components by weight parts: 42 parts of waste glass powder, 12 parts of CaSO4, 17 parts of CaCl2 and 29 parts of water. The manufacture process comprises the following steps: (1) screening pore-forming agent, wherein the particle diameter of the pore-forming agent is controlled to be below 50 meshes through screening; (2) grinding glass powder: grinding the waste glass into powder by Raymond mill, wherein the particle diameter of the glass diameter is below 20 meshes; (3) stirring and pelleting: stirring for 6 min with the stirring speed of 300 r/min; (4) sintering: sintering at the temperature of 800 DEG C, keeping the temperature for 2 h; (5) forming; (6) drying, wherein the inlet temperature of a drying chamber is 70 DEG C, the relative humidity is 95%-100%, the outlet temperature of an air heater is 85-90 DEG C. In the invention, the waste glass is utilized to manufacture the heat insulating plate, thereby having advantages of easily obtained raw materials, simple production process, easy operation and wide adaptability.
Description
Technical field
The present invention relates to building material field, particularly a kind of warming plate and preparation method with produced from waste glass.
Background technology
Cullet is a kind of household garbage, and its existence had brought inconvenience both for people's production and life, again environment had been caused pollution, had taken valuable land resources, had increased environmental pressure.According to estimates, the annual cullet that produces of China has 3,200,000 tons, accounts for about 29.6% of domestic waste.If can utilize waste plate glass to make inner porous, be the inorganic light weight thermal insulation plate of orbicule, have great economic benefit and environmental benefit for raw material.Experiment shows that the principal element that influences the warming plate performance has granulation time, amount of water, sintering temperature and temperature retention time etc.
Summary of the invention
At the deficiencies in the prior art, purpose of the present invention provides a kind of warming plate and preparation method with produced from waste glass.
Raw material proportioning of the present invention is as follows: the cullet powder: 42 parts; CaSO
4: 12 parts; CaCl
2: 17 parts; Water: 29 parts.
Making step of the present invention comprises:
1 screening pore-forming agent.By screening the pore creating material particle diameter is controlled to be below 50 orders.
2 abrading glass powder.With Raymond mill cullet is clayed into power, the glass dust particle diameter is below 20 orders.
3 stirring-granulatings.Mixing time is 6min, and mixing speed is 300r/min.
4 sintering.Sintering temperature is 800 ℃, and temperature retention time is 2h.
5 moulding.Utilize extruder for shaping, extrusion pressure is 3MPa, and compact dimensions is decided as required.
6 dryings.The drying room inlet temperature is 70 ℃, and relative humidity is 95%～100%, and the unit heater outlet temperature is 85～90 ℃, and the drying room temperature is even, and temperature is clocklike reduced to moisture exhausting section by dryer section.
The present invention utilizes cullet system warming plate, and raw material are easy to get, and production technology is simple, processing ease, and applicability is wide.
The specific embodiment
Can be made into warming plate according to following manner.
The raw material proportioning is as follows: the cullet powder: 42 parts; CaSO
4: 12 parts; CaCl
2: 17 parts; Water: 29 parts.
Making step comprises:
1 screening pore-forming agent.By screening the pore creating material particle diameter is controlled to be below 50 orders.
2 abrading glass powder.With Raymond mill cullet is clayed into power, the glass dust particle diameter is below 20 orders.
3 stirring-granulatings.Mixing time is 6min, and mixing speed is 300r/min.
Table 1 is mixing time and particle diameter relation.The granulation time, the granulation time was too short when too short, and raw material only is loose reunion, does not form green-ball closely as yet, so big particle diameter green-ball is many.During the granulation overlong time, moisture is owing to evaporation loss, and already made green-ball is broken into powder under extraneous active force, so in the majority less than molecule and the powder of 0.3mm.The reason that produces above-mentioned phenomenon is the variation of the form of water in the granulation process.When granulation began, moisture was suitable.At this moment, need the regular hour to make granulation reach an equilibrium state.When reaching balance, endocorpuscular fragmentation of comminutor and agglomeration are also deposited, and this moment, moisture was still suitable, so this equilibrium state can continue for some time.But owing to exist the existence of the loss process of moisture such as evaporation, if additionally do not add water, moisture will tail off gradually, lacks enough strong bonding force between the particle, and reuniting is difficult for producing, and is unfavorable for the continuation of granulation process.Therefore, along with the granulation time is long more, granule and powder are just many more.Table 1 shows that best mixing time is 6min.
Table 1 mixing time and particle diameter relation
Table 2 is mixing speed and particle diameter relation.Mechanical force is bigger to the effect of particle when stirring fast, easily green-ball is smashed.It is relatively good that mixing speed slows down back particle sphericity.But too slow granule of mixing speed and powder are too much, and grating is unreasonable.Show in the table that best mixing speed is 300r/min.
Table 2 mixing speed and particle diameter relation
4 sintering.Sintering temperature is 800 ℃, and temperature retention time is 2h.
Table 3 is the influence of temperature to intensity and porosity.Temperature is too high, and the formed viscous liquid of fusion fully flows and ball base densification degree is improved greatly, but the pore creating material in the raw material may melt-flow, makes that the product particle aperture behind the wash-out is very inhomogeneous.Moreover, the formed viscous liquid of glass melting may get up by the involution that pore creating material is tight, makes it can't remove in elution processes, and small product size and specific area are all shunk greatly, thereby also influenced the porosity of product.Temperature is low excessively, and only part is softening can to cause particles of aggregates, and powder particle is difficult to form firm connection, causes loose particles and shaky, and the broken phenomenon that will occur particle in product post processing such as wash-out more can influence the intensity of particle.Table 3 shows that sintering temperature is high more, and the intensity of particle can be big more and porosity is more little.Therefore optimal sintering temperature is 800 ℃, and temperature retention time is 2h.
Table 3 temperature is to the influence of intensity and porosity
| Sintering temperature/℃ | Porosity | Intensity/MPa |
| 600 | 50.6％ | 12.2 |
| 700 | 45.6％ | 13.1 |
| 800 | 40.6％ | 13.8 |
| 900 | 38.4％ | 14.1 |
| 1000 | 37.5％ | 14.3 |
5 moulding.Utilize extruder for shaping, extrusion pressure is 3MPa, and compact dimensions is decided as required.
6 dryings.The drying room inlet temperature is 70 ℃, and relative humidity is 95%～100%, and the unit heater outlet temperature is 85～90 ℃, and the drying room temperature is even, and temperature is clocklike reduced to moisture exhausting section by dryer section.
Claims (2)
1. warming plate with produced from waste glass, its raw material proportioning is as follows: the cullet powder: 42 parts; CaSO
4: 12 parts; CaCl
2: 17 parts; Water: 29 parts.
2. according to the described warming plate of claim 1, its manufacture craft may further comprise the steps:
1) screening pore-forming agent is controlled to be the pore creating material particle diameter below 50 orders by screening;
2) the abrading glass powder is clayed into power cullet with Raymond mill, and the glass dust particle diameter is below 20 orders;
3) stirring-granulating, mixing time are 6min, and mixing speed is 300r/min;
4) sintering, sintering temperature are 800 ℃, and temperature retention time is 2h;
5) moulding utilizes extruder for shaping, and extrusion pressure is 3MPa, and compact dimensions is decided as required;
6) drying, drying room inlet temperature are 70 ℃, and relative humidity is 95%～100%, and the unit heater outlet temperature is 85～90 ℃, and the drying room temperature is even, and temperature is clocklike reduced to moisture exhausting section by dryer section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101468380A CN101638919B (en) | 2009-06-09 | 2009-06-09 | Heat insulating plate made of waste glass and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101468380A CN101638919B (en) | 2009-06-09 | 2009-06-09 | Heat insulating plate made of waste glass and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101638919A CN101638919A (en) | 2010-02-03 |
| CN101638919B true CN101638919B (en) | 2010-12-08 |
Family
ID=41614077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101468380A Expired - Fee Related CN101638919B (en) | 2009-06-09 | 2009-06-09 | Heat insulating plate made of waste glass and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101638919B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI509133B (en) * | 2012-07-20 | 2015-11-21 | Univ Nat Ilan | Environmental-friendly thermal insulation board made by recycling lcd waste glass and the manufacturing method thereof |
| CN103011892B (en) * | 2012-12-06 | 2015-10-28 | 首钢总公司 | Take cullet as heat preservation plate material and the production method thereof of raw material |
| CN107760275B (en) * | 2017-11-14 | 2020-10-23 | 中国矿业大学 | Low-melting-point high-temperature phase change material prepared from glass and preparation method thereof |
-
2009
- 2009-06-09 CN CN2009101468380A patent/CN101638919B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101638919A (en) | 2010-02-03 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20101208 Termination date: 20110609 |