JPH10316457A - Production of foamed article - Google Patents
Production of foamed articleInfo
- Publication number
- JPH10316457A JPH10316457A JP12459797A JP12459797A JPH10316457A JP H10316457 A JPH10316457 A JP H10316457A JP 12459797 A JP12459797 A JP 12459797A JP 12459797 A JP12459797 A JP 12459797A JP H10316457 A JPH10316457 A JP H10316457A
- Authority
- JP
- Japan
- Prior art keywords
- melting point
- waste glass
- ash
- foam
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000002844 melting Methods 0.000 claims abstract description 28
- 230000008018 melting Effects 0.000 claims abstract description 28
- 239000002699 waste material Substances 0.000 claims abstract description 22
- 239000011521 glass Substances 0.000 claims abstract description 20
- 239000004088 foaming agent Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000006260 foam Substances 0.000 claims description 20
- 239000002893 slag Substances 0.000 claims description 12
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 239000005751 Copper oxide Substances 0.000 claims description 2
- 229910000431 copper oxide Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 9
- 238000005187 foaming Methods 0.000 abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 abstract 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 abstract 1
- 229940112669 cuprous oxide Drugs 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000010426 asphalt Substances 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000012669 compression test Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Classifications
-
- 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
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
- C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
- C04B5/065—Porous slag
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、焼却灰などの灰を
溶融固形化して得られるスラグを利用した発泡体の製造
方法に関する。The present invention relates to a method for producing a foam using slag obtained by melting and solidifying ash such as incinerated ash.
【０００２】[0002]
【従来の技術】廃棄物の焼却灰は、その減容化のため
に、油を燃料としたバーナまたはプラズマを利用した灰
溶融設備にて、溶融化および固形化処理が行われ、１／
３程度まで減容化されており、この減容化により得られ
たスラグは、従来、強度が必要とされないアスファルト
などの骨材に用いられていた。2. Description of the Related Art Waste incineration ash is melted and solidified in an ash melting facility using an oil-fueled burner or plasma to reduce its volume.
The volume has been reduced to about 3, and the slag obtained by this volume reduction has been conventionally used for aggregates such as asphalt which does not require strength.
【０００３】[0003]
【発明が解決しようとする課題】上述したように、溶融
固形化により得られたスラグは、強度があまり無いた
め、アスファルトなどの骨材にしか再利用できないとい
う問題があった。As described above, the slag obtained by melting and solidifying has a problem that it has low strength and can be reused only for aggregate such as asphalt.
【０００４】そこで、本発明は、灰の溶融固形化により
得られたスラグを利用して強度の有する発泡体を製造す
る方法を提供することを目的とする。Accordingly, an object of the present invention is to provide a method for producing a strong foam using slag obtained by melting and solidifying ash.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明の発泡体の製造方法は、溶融灰を冷却固化し
て得られた粉末状のスラグに、重量比で20〜50％の範囲
で粉末状の廃ガラスを添加するとともに、発泡剤を添加
した後、加熱して発泡体を得る方法であり、また上記添
加される廃ガラスとして、その融点が500℃から1000℃
未満のものを使用し、さらに発泡剤として、炭化珪素と
酸化銅との混合物を使用したものである。Means for Solving the Problems To solve the above-mentioned problems, a method for producing a foam according to the present invention comprises adding a powdery slag obtained by cooling and solidifying a molten ash to a powdery slag of 20 to 50% by weight. In addition to the addition of powdered waste glass in the range, after adding a foaming agent, it is a method of obtaining a foam by heating, and as the added waste glass, the melting point is from 500 ° C. to 1000 ° C.
And a mixture of silicon carbide and copper oxide as a foaming agent.
【０００６】この製造方法によると、嵩密度が小さくか
つ圧縮強度が高い発泡体が得られ、軽量骨材などにも再
利用することができる。According to this manufacturing method, a foam having a low bulk density and a high compressive strength can be obtained, and can be reused as a lightweight aggregate.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施の形態におけ
る発泡体の製造方法について説明する。本発明に係る発
泡体の製造方法は、まず一般廃棄物の焼却灰をバーナ式
またはプラズマ式灰溶融炉で溶融処理した後、水槽に導
き冷却固化して得られた固形化スラグに、500℃から100
0℃未満の範囲の融点を有する廃ガラスを、20〜50％
（重量％、以下同じ）の範囲内で添加し、そしてアルコ
ール中で２４時間ボールミルにて粉砕を行い、混合粉末
材を得る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for producing a foam according to an embodiment of the present invention will be described below. The method for producing a foam according to the present invention is as follows: first, the incineration ash of general waste is melted in a burner type or plasma type ash melting furnace, and then the solidified slag obtained by cooling and solidifying is introduced into a water tank at 500 ° C. From 100
Waste glass with a melting point in the range of less than 0 ° C, 20-50%
(% By weight, the same applies hereinafter) and pulverized in an alcohol for 24 hours with a ball mill to obtain a mixed powder material.
【０００８】次に、この混合粉末材に、炭化珪素（Ｓｉ
Ｃ）と酸化銅（ＣｕＯ）とを等しい割合（１：１）で混
合されてなる発泡剤を、所定重量例えば３％（重量％）
添加して、発泡材料を得る。Next, silicon carbide (Si) is added to the mixed powder material.
A predetermined weight, for example, 3% (% by weight) of a blowing agent obtained by mixing C) and copper oxide (CuO) at an equal ratio (1: 1)
Add to obtain a foamed material.
【０００９】勿論、固形化スラグおよび廃ガラスを別個
に粉砕しておき、後で両者を混合させるようにしてもよ
く、さらには粉末状の固形化スラグおよび廃ガラスに発
泡剤を混ぜた状態でボールミルなどで粉砕させて、発泡
材料を得ることもできる。Of course, the solidified slag and the waste glass may be separately pulverized, and the both may be mixed later. Further, the powdered solidified slag and the waste glass may be mixed with a foaming agent. The foamed material can also be obtained by pulverizing with a ball mill or the like.
【００１０】このようにして得られた発泡材料を、その
融点まで加熱し、そして3分間保持した後、冷却を行う
ことにより、軽量でかつ強度の高い発泡体が得られる。
すなわち、従来のアスファルトなどの他に、骨材として
利用することができ、その利用範囲が広くなる。[0010] The foamed material thus obtained is heated to its melting point, held for 3 minutes, and then cooled to obtain a lightweight and high-strength foam.
That is, in addition to conventional asphalt and the like, it can be used as an aggregate, and its use range is widened.
【００１１】上記発泡材料の融点は、焼却灰の融点（例
えば、1400〜1500℃程度）よりも低い融点（500℃から1
000℃未満の範囲）を有する廃ガラスを加えるため、全
体として低い融点となり、したがってスラグの再利用の
ために発泡化を行う装置材料の損傷を防止することがで
きるとともに、一度に、大量の溶融処理を行うことがで
きる。The melting point of the above foamed material is lower than the melting point of incinerated ash (for example, about 1400 to 1500 ° C.).
The addition of waste glass (with a temperature below 000 ° C) results in an overall low melting point, thus preventing damage to the equipment material that foams for reuse of the slag and, at the same time, a large amount of melting at a time. Processing can be performed.
【００１２】ここで、上述した製造方法に基づき種々の
発泡体および比較例を製造するとともに、その性状、す
なわち融点、嵩密度および圧縮試験の結果を、下記の
［表1］に示す。Here, various foams and comparative examples were produced based on the above-mentioned production method, and their properties, that is, melting points, bulk densities, and results of compression tests are shown in Table 1 below.
【００１３】[0013]
【表１】 [Table 1]
【００１４】なお、上記［表1］における試料番号１〜
３に示す廃ガラスの融点については、46mm（外径）×53
mm（高さ）のアルミナ磁器製の坩堝を用いて、大気中で
それぞれ加熱することにより求めた。The sample numbers 1 to 3 in the above [Table 1]
The melting point of the waste glass shown in Fig. 3 is 46 mm (outer diameter) x 53
Using a crucible made of alumina porcelain of mm (height), the values were obtained by heating each in the atmosphere.
【００１５】また、試料番号４〜１０については、固形
化スラグに、融点がそれぞれ異なる３種類の廃ガラスを
添加した場合の性状を示しており、嵩密度および圧縮試
験を行うに際しては、試験片の形状は、20mm（直径）×
30mm（長さ）とし、また嵩密度は乾燥重量と形状とによ
り算出した体積から計算し、さらに圧縮強度は、圧縮荷
重と断面積とから計算した。なお、圧縮試験における荷
重負荷速度は、0.5mm／minである。[0015] Sample Nos. 4 to 10 show the properties when three types of waste glass having different melting points were added to the solidified slag. The shape is 20mm (diameter) x
It was 30 mm (length), the bulk density was calculated from the volume calculated from the dry weight and the shape, and the compressive strength was calculated from the compressive load and the cross-sectional area. The load speed in the compression test is 0.5 mm / min.
【００１６】［表1］に示すように、試料番号１〜３に
ついては、融点が500℃，700℃および1000℃の廃ガラス
だけの場合を比較例として示したものであり、圧縮強度
が低いのが分かる。As shown in Table 1, samples Nos. 1 to 3 show, as comparative examples, only waste glass having melting points of 500 ° C., 700 ° C. and 1000 ° C., and have low compressive strength. I understand.
【００１７】また、試料番号４〜７については、融点が
500℃の廃ガラスを添加したものであり、その添加量が2
0〜50％の範囲のもの（試料番号５および６）について
は、強度があるとともに発泡体の製造時における容器の
損傷が見られなかったが、試料番号４のものについては
発泡時に容器の損傷が見られ、試料番号７のものについ
ては強度が低かった。The melting points of sample numbers 4 to 7 are as follows.
Waste glass at 500 ° C is added.
In the range of 0 to 50% (sample Nos. 5 and 6), the container was strong and the container was not damaged during the production of the foam. And the sample No. 7 had low strength.
【００１８】試料番号８および９については、融点が70
0℃の廃ガラスを添加したものであり、その添加量が30
〜50％の範囲のものについては、強度を有していた。一
方、試料番号１０のものは、融点が1000℃の廃ガラスを
添加したものであり、試料すなわち発泡材料の融点が12
00℃と高く、したがって発泡時に容器の損傷が見られ
た。Samples 8 and 9 have a melting point of 70
0 ° C waste glass was added, and the amount added was 30
Those having a range of 5050% had strength. On the other hand, the sample of sample number 10 is obtained by adding waste glass having a melting point of 1000 ° C.
As high as 00 ° C., damage to the container was observed during foaming.
【００１９】これらを勘案すると、融点が500℃から100
0℃未満の範囲、好ましくは500〜700℃の範囲の廃ガラ
スを、20〜50％添加するとともに発泡剤を所定量（好ま
しくは30〜50％）添加することにより、融点が1000℃未
満と低く、かつ廃ガラス単体の場合よりも強いもの、す
なわち強度を有する発泡体が得られることが判明した。Taking these into consideration, the melting point is from 500 ° C. to 100 ° C.
By adding 20 to 50% of waste glass in a range of less than 0 ° C, preferably in a range of 500 to 700 ° C and adding a predetermined amount (preferably 30 to 50%) of a blowing agent, the melting point is reduced to less than 1000 ° C. It was found that a foam having a lower strength and stronger than that of the waste glass alone, that is, a foam having strength was obtained.
【００２０】なお、評価は、［表１］に示す通りであ
り、具体的には、廃ガラスが添加されていない試料の各
数値をもとにして、嵩密度が小さい（軽い）こと、圧縮
強度が高いことを基準にしている。The evaluation is as shown in [Table 1]. Specifically, based on each numerical value of the sample to which no waste glass was added, the bulk density was small (light) and the compression was small. Based on high strength.
【００２１】さらに、上記発泡体の吸音試験（ＡＳＴＭ
Ｅ１０５０による２マイクロホンインピーダンス法）
を行ったところ、図１に示すような結果、すなわち1000
〜4000Ｈｚの範囲内で高い吸音効果が得られた。Further, a sound absorption test (ASTM)
2-microphone impedance method by E1050)
Was performed, the result as shown in FIG.
A high sound absorbing effect was obtained in the range of 40004000 Hz.
【００２２】[0022]
【発明の効果】以上のように、本発明の発泡体の製造方
法によると、嵩密度が小さくかつ圧縮強度が高いものが
得られるため、従来のように、強度を必要としないアス
ファルト以外の用途、例えば骨材として再利用すること
ができ、非常に経済的である。As described above, according to the method for producing a foam of the present invention, a foam having a low bulk density and a high compressive strength can be obtained. It can be reused as aggregate, for example, and is very economical.
【図1】本発明の実施の形態の製造方法により得られた
発泡体の吸音試験の結果を示すグラフである。FIG. 1 is a graph showing a result of a sound absorption test of a foam obtained by a production method according to an embodiment of the present invention.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 友野 裕 大阪府大阪市此花区西九条５丁目３番28号 日立造船株式会社内 (72)発明者 浜辺 孝平 大阪府大阪市此花区西九条５丁目３番28号 日立造船株式会社内 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Hiroshi Tomono 5-28, Nishikujo, Konohana-ku, Osaka-shi, Osaka Inside Hitachi Zosen Corporation (72) Inventor Kohei Hamabe 5-cho, Nishikujo, Konohana-ku, Osaka-shi, Osaka No. 28 in Hitachi Zosen Corporation
Claims (3)
ラグに、重量比で20〜50％の範囲で粉末状の廃ガラスを
添加するとともに、発泡剤を添加した後、加熱して発泡
体を得ることを特徴とする発泡体の製造方法。1. To a powdery slag obtained by cooling and solidifying a molten ash, a powdery waste glass is added in a weight ratio of 20 to 50%, and a foaming agent is added, followed by heating. A method for producing a foam, comprising: obtaining a foam by heating.
ガラスを添加することを特徴とする請求項１記載の発泡
体の製造方法。2. The method for producing a foam according to claim 1, wherein waste glass having a melting point in the range of 500 ° C. to less than 1000 ° C. is added.
物を使用することを特徴とする請求項１または２記載の
発泡体の製造方法。3. The method for producing a foam according to claim 1, wherein a mixture of silicon carbide and copper oxide is used as the foaming agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12459797A JPH10316457A (en) | 1997-05-15 | 1997-05-15 | Production of foamed article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12459797A JPH10316457A (en) | 1997-05-15 | 1997-05-15 | Production of foamed article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10316457A true JPH10316457A (en) | 1998-12-02 |
Family
ID=14889398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12459797A Pending JPH10316457A (en) | 1997-05-15 | 1997-05-15 | Production of foamed article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10316457A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044066A (en) * | 2013-01-12 | 2013-04-17 | 景德镇陶瓷学院 | Foamed ceramic material prepared from tailings and ceramic tile polishing waste and manufacturing method for same |
| JP2016132586A (en) * | 2015-01-19 | 2016-07-25 | 裕光 幅口 | Expandable burned body, and method for manufacturing the same |
-
1997
- 1997-05-15 JP JP12459797A patent/JPH10316457A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044066A (en) * | 2013-01-12 | 2013-04-17 | 景德镇陶瓷学院 | Foamed ceramic material prepared from tailings and ceramic tile polishing waste and manufacturing method for same |
| JP2016132586A (en) * | 2015-01-19 | 2016-07-25 | 裕光 幅口 | Expandable burned body, and method for manufacturing the same |
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