CN102285771A - Light-weight aggregate and manufacturing method thereof - Google Patents
Light-weight aggregate and manufacturing method thereof Download PDFInfo
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- CN102285771A CN102285771A CN201010208849XA CN201010208849A CN102285771A CN 102285771 A CN102285771 A CN 102285771A CN 201010208849X A CN201010208849X A CN 201010208849XA CN 201010208849 A CN201010208849 A CN 201010208849A CN 102285771 A CN102285771 A CN 102285771A
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- light aggregate
- siulica
- glass powder
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Abstract
The invention relates to a manufacturing method of light-weight aggregates, which comprises the following steps of: firstly, taking a preset proportion of sewage-plant sludge, silica-alumina minerals and glass powders for uniformly stirring to obtain a mixture; then, granulating the mixture to form a plurality of round granules; and afterwards, carrying out a series of sintering steps to vitrify the glass powders and the silica-alumina minerals in the round granules to form closed-type hollow-type light-weight aggregates.
Description
Technical field
The present invention is relevant with the making of light aggregate, and particularly with a kind of to use light aggregate and manufacture method thereof that the sewage plant sludge manufacturing obtains relevant.
Background technology
In recent years, along with the lasting growth of economy, many public constructions and dwelling house are built in a large number, cause the sandstone supply to lack and the exhaustion day by day of natural pellet.In addition, build limited high stratification of direction of building and the densification of causing in ground and develop, so the building materials lighting becomes the trend of doing one's utmost to develop gradually.
For in response to existing promote energy-conservation, subtract the green architectual concept of useless environmental protection, developing light aggregate with natural resource such as mud, mud and lime-ash or industrial waste is trend of the times.This measure not only can reduce the impact of environment, and the deficiency that can solve environmental issue and enrich natural sand and stone resources.And, the light aggregate concrete have light weight, sound insulation, heat insulation, resistivity against fire is strong and advantage such as shatter-proof, can promote the security of buildings.
Therefore, use natural and renewable resource are developed light aggregate, and the stability that promotes the light aggregate product quality, be one of emphasis of present light aggregate industry develop actively.
Summary of the invention
In view of this, purpose of the present invention is providing a kind of light aggregate and preparation method thereof exactly, its with sewage plant sludge, siulica-alumina mineral and glass powder as making raw material.
The present invention proposes a kind of light aggregate in addition, and it comprises body and coats body and be formed at melting layer within the body.Body comprises hole, and body is that a plurality of circular granulars by the sewage plant sludge with predetermined proportion, siulica-alumina mineral and glass powder are formed through sintering.
The present invention proposes a kind of manufacture method of light aggregate in addition.At first, sewage plant sludge, siulica-alumina mineral and the glass powder of getting a predetermined proportion evenly stir, to obtain a mixture.Then, with mixture pelleting to form a plurality of circular granulars.Afterwards, carry out series of sintering steps, make glass powder and siulica-alumina mineral in these circular granulars produce vitrifying, to form the hollow type light aggregate of closed type.
In one embodiment of this invention, above-mentioned predetermined proportion is meant that the weight ratio of sewage plant sludge, siulica-alumina mineral and glass powder is 8: 1: 1-16: 3: 1.
In one embodiment of this invention, the material of above-mentioned melting layer comprises siulica-alumina mineral and glass powder.
In one embodiment of this invention, above-mentioned sewage plant sludge has the water content between 70wt%-80wt%.
In one embodiment of this invention, the temperature of above-mentioned sintering step is between 1,000 ℃-1,300 ℃.
In one embodiment of this invention, the time of above-mentioned sintering step is 5 minutes-12 minutes.
In one embodiment of this invention, the inside of above-mentioned light aggregate is formed with the hole by gas institute balloon one-tenth.
In one embodiment of this invention, the above-mentioned method that forms melting layer on the circular granular surface comprises: utilize an extrusion molding tablets press that this mixture pelleting is formed a plurality of circular granulars.
The manufacture method of the present invention's light aggregate is to utilize sewage plant sludge, siulica-alumina mineral and glass powder to form the hollow type light aggregate of closed type, it not only can solve the insufficient problem of natural sand and stone resources, and it is useless to help subtracting of sewage plant sludge, thereby avoids the secondary environmental issue that huge sludge quantity caused throws aside as ashes because of the incineration process Sewage Plant.In addition, contained melting layer material can avoid formed light aggregate to have the open pore in the master batch, has significantly promoted the stability of light aggregate product quality.
Description of drawings
Fig. 1 is the step of manufacturing schema according to the light aggregate that embodiments of the invention illustrated;
The pattern photo of the hollow type light aggregate that Fig. 2 provides for embodiments of the invention;
The pattern photo of the hollow type light aggregate that Fig. 3 provides for embodiments of the invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Fig. 1 is the step of manufacturing schema according to the light aggregate that embodiments of the invention illustrated.
Please refer to Fig. 1, at first, sewage plant sludge, siulica-alumina mineral and the glass powder of getting a predetermined proportion evenly stir, to obtain a mixture.In the present embodiment, this predetermined proportion is that the weight ratio of sewage plant sludge, siulica-alumina mineral and glass powder is about 8: 1: 1-16: 3: 1.Employed sewage plant sludge is in the water content through still possessing 70%-80% (wt%) after the processed, so when mixing above-mentioned materials, do not need additionally to add water or solvent, mixture integrated the specified shape that becomes to have as round pie after even stirring just can form even stirring and help.
Then, carry out step S120, adopt wet type granulation mode by the extrusion molding tablets press said mixture is made a plurality of master batches.Made master batch for example is a circular granular.
Afterwards, carry out step S130, be directed to that resulting master batch carries out series of sintering steps among the step S120, to form light aggregate.In detail, for example be resulting master batch among the step S120 to be placed klining boards such as rotation klining machine or shuttle klining machine, be 1 in temperature condition, 000 ℃-1, in 300 ℃ the scope, carry out series of sintering steps, wherein the time of these sintering steps was about 5 minutes about-12 minutes.What describe in detail is that contained glass powder can be used as fusing assistant to reduce the fusing point of master batch in the master batch.Moreover glass powder and siulica-alumina mineral contained in the master batch can be used as melting layer, to produce vitrifying and form vitreous slag in the high temperature sintering step.In sintering step, the material of master batch inside then can become gases such as evaporating into hydrogen or nitrogen, and wherein formed vitreous melting layer in being formed at master batch, and whole circular granular can be sealed by the outside and formed the closed type structure, and then form the hole that can't expellant gas institute balloon becomes by these in the inside of circular granular, form the hollow type light aggregate (as Fig. 2 and shown in Figure 3) of closed type at last.
In sum, the manufacture method of light aggregate of the present invention is to utilize sewage plant sludge, siulica-alumina mineral and glass powder to form the hollow type light aggregate of closed type, it not only can solve the insufficient problem of natural sand and stone resources, and it is useless to help subtracting of sewage plant sludge, thereby avoids the secondary environmental issue such as throwing aside because of the ashes that huge sludge quantity caused of incineration process sewage work.In addition, as mentioned above, manufacture method of the present invention is to adopt wet type granulation mode with the formation master batch, thereby can save the granulation step of incinerating power consumption.Moreover contained melting layer material can avoid formed light aggregate to have the open pore in the master batch, and then has significantly promoted the stability of light aggregate product quality.In brief, the manufacture method of light aggregate of the present invention has quite high economic worth.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limiting the present invention, anyly has the knack of this skill person, without departing from the spirit and scope of the present invention; when can doing to change and retouching, so protection scope of the present invention is as the criterion when looking the accompanying Claim scope person of defining.
Claims (10)
1. light aggregate, it includes:
One body, it includes hole, and described body is that a plurality of circular granulars by the sewage plant sludge with predetermined proportion, glass powder and siulica-alumina mineral are formed through sintering; And
One melting layer, it coats described body and is formed within the described body.
2. light aggregate as claimed in claim 1, wherein, described predetermined proportion is meant that the weight ratio of sewage plant sludge, siulica-alumina mineral and glass powder is 8: 1: 1-16: 3: 1.
3. light aggregate as claimed in claim 1, wherein, the material of described melting layer comprises siulica-alumina mineral and glass powder.
4. light aggregate as claimed in claim 1, wherein, described sewage plant sludge has the water content of 70wt%-80wt%.
5. the manufacture method of a light aggregate, it includes:
Sewage plant sludge, glass powder and the siulica-alumina mineral of getting a predetermined proportion evenly stir, to obtain a mixture;
With this mixture pelleting to form a plurality of circular granulars; And
Carry out series of sintering steps, and make glass powder and siulica-alumina mineral in those circular granulars produce vitrifying, to form the hollow type light aggregate of closed type.
6. the manufacture method of light aggregate as claimed in claim 5, wherein, described predetermined proportion is meant that the weight ratio of sewage plant sludge, siulica-alumina mineral and glass powder is 8: 1: 1-16: 3: 1.
7. the manufacture method of light aggregate as claimed in claim 5, wherein, the temperature of described sintering step is between 1000 ℃-1300 ℃, and the time of described sintering step is 5 minutes-12 minutes.
8. the manufacture method of light aggregate as claimed in claim 5, wherein, described glass powder and siulica-alumina mineral are the usefulness as melting layer.
9. the manufacture method of light aggregate as claimed in claim 5, wherein, the inside of light aggregate is formed with the hole that is roused by gas.
10. the manufacture method of light aggregate as claimed in claim 5 wherein, includes this mixture pelleting with the method that forms a plurality of circular granulars: utilize an extrusion molding tablets press with this mixture pelleting to form a plurality of circular granulars.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010208849XA CN102285771A (en) | 2010-06-21 | 2010-06-21 | Light-weight aggregate and manufacturing method thereof |
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| CN201010208849XA CN102285771A (en) | 2010-06-21 | 2010-06-21 | Light-weight aggregate and manufacturing method thereof |
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| CN102285771A true CN102285771A (en) | 2011-12-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108911479A (en) * | 2018-07-27 | 2018-11-30 | 成都源永科技发展有限公司 | A kind of industrial sludge vitrifying addition medicament |
| CN111918974A (en) * | 2018-03-29 | 2020-11-10 | 杰富意钢铁株式会社 | Granulated substance, method for producing granulated substance, and method for producing sintered ore |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215150A (en) * | 2008-01-18 | 2008-07-09 | 北京工业大学 | Method for burning haydite by solid castoff |
| CN101591151A (en) * | 2008-05-27 | 2009-12-02 | 黄兆龙 | The manufacture method of light weight aggregate |
-
2010
- 2010-06-21 CN CN201010208849XA patent/CN102285771A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215150A (en) * | 2008-01-18 | 2008-07-09 | 北京工业大学 | Method for burning haydite by solid castoff |
| CN101591151A (en) * | 2008-05-27 | 2009-12-02 | 黄兆龙 | The manufacture method of light weight aggregate |
Non-Patent Citations (1)
| Title |
|---|
| 别特罗夫等: "粘土矿物的性质和工业利用", 《矿产保护与利用》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111918974A (en) * | 2018-03-29 | 2020-11-10 | 杰富意钢铁株式会社 | Granulated substance, method for producing granulated substance, and method for producing sintered ore |
| CN108911479A (en) * | 2018-07-27 | 2018-11-30 | 成都源永科技发展有限公司 | A kind of industrial sludge vitrifying addition medicament |
| CN108911479B (en) * | 2018-07-27 | 2021-03-19 | 成都源永科技发展有限公司 | Industrial sludge vitrification adding agent |
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Application publication date: 20111221 |