JP2015527507A - 鉱物繊維又は植物繊維の連続マットを加熱する方法 - Google Patents
鉱物繊維又は植物繊維の連続マットを加熱する方法 Download PDFInfo
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Abstract
Description
− 水溶液に希釈されたバインダーの、すなわち水溶液で希釈されたバインダーを含有する水溶液の、鉱物繊維又は植物繊維上への適用、
− 移動中のコンベア上で連続マットを形成するための繊維の成形、
− バインダーの硬化温度より高い温度での、熱風流による、オーブン中を移動するマットへの加温、
を連続して含み、
ここで、この方法は、オーブンに入る前のマットの少なくとも部分的な乾燥を含み、この少なくとも部分的な乾燥は、その周波数が3MHz〜300GHzである無線周波数電磁波を、移動中のマットに照射することを含む、方法に関する。
バインダーの溶媒の初期分布の非均一性は、加熱時の温度の非均一性を作り出す傾向があるようであった。
3MHz〜300GHzの無線周波数波、好ましくはマイクロ波(300MHz〜300GHz)又は高周波(3MHz〜30MHz)、のマットへの照射は、乾燥粉末を最大質量の水に集中させることを可能にする。さらにこの波は、水に遭遇するまでマット中を通過する。
したがって、マット中の水の存在は減少し、特により均一になる。
照射パワーを制御することは、例えば完全な蒸発を避け、したがって、例えばオーブン中のバインダーの湿潤性(すなわち、バインダーが拡がる能力)を保持することを可能にする。
− マットに十分なパワーを照射するため、照射による少なくとも部分的な乾燥後のマット中の水の存在が所定値より小さくなる;
− 照射パワーが、乾燥時のマットの温度が、バインダーの硬化温度より低いままであるように選択される;
− 照射パワーが、マット内の水の質量%の左/右の差が、照射後に30%未満に低下されるように選択される;
− 照射が、移動中のマットの全幅にわたって行われる;
− バインダーの硬化温度よりも低い温度の空気が、水分を除去するために、照射ゾーン中のマットに吹き付けられる;
− オーブンの少なくとも一つの区画内に吹き付けられる熱風の温度が、バインダーの硬化温度より少なくとも100℃以上高い;
− 空気がオーブンに吹き付けられマットを通過する;
− マットの密度が5〜250kg/m3である;
− 鉱物繊維又は植物繊維上に水溶液を適用する工程は、繊維がコンベア上に堆積される前に行われる;
− 水溶液の適用が、比較的大きなサイズ又は比較的小さなサイズのバインダー溶液の画分(例えば液滴)への噴霧又は霧化による適用である。
− 鉱物繊維又は植物繊維を生成するための繊維化手段、
− 鉱物繊維又は植物繊維上にバインダーを適用するための手段、
− 移動中のコンベア上で、繊維を連続マットを成形するための手段、
− バインダーの硬化温度より高い温度の熱風流によって、オーブンを移動中のマットを加温する手段を備えた加熱オーブン、
を含み、
ここで、加熱オーブンの上流に、その周波数が3MHz〜300GHzである無線周波数波を移動中のマットに照射することができる照射装置を備えた、製造ラインに関する。
照射パワーは、例えば照射装置中をマットが通過する間に、1〜20質量%の水を蒸発させるのに十分である。
水の質量%=(質量1−質量2)×100/質量1
蒸発するY質量%の水の項は、水の質量が、照射前のマットの水の質量%であるX%から、装置中でマットの照射後のX%−Y%まで変化することを意味する。
この差は、左と右(すなわち、幅の方向)の間のマット中の水の質量%のデルタを意味する。
%左1, %左2, %左3, %右1, %右2, %右3
差=|(%左1+%左2+%左3)/3−(%右1+%右2+%右3)/3|
(差前−差後)×100/差前
形成後(すなわち加熱前)に取った湿潤グラスウールマットの試料を、工業的プロトタイプ中で27.12MHz、915MHz、及び2450MHzの周波数を有する照射シーケンスに付した。
この試験のために、2種の別々の濃度を作製するために、300mm×300mmの試料を半分に切断し、異なる量の水を人工的に散布した。次に、試料を高周波システム中に50秒間導入すると、以下の質量損失がもたらされた。
この試験のために、水分レベルのみが異なる210mm×105mmの2つの試料(試料2が試料1より湿潤性が高い)をマットから切断した。これらを一緒にマイクロ波照射装置に入れ、連続照射時間で同じ照射(すなわち、放射パワー900W)に付した。
水分含量は、ベース100を基準として有するベース中で表される水分質量%である。
したがって、ベース100中のXの値は、含量初期試料1のX%の水分含量に対応する。
実施された試験は、使用された異なる周波数でグラスウール試料を乾燥させる可能性を示し、このタイプのオーブンで得られることが予測される最小の効率(蒸発する水1kg当たりの有効パワーkWhで)を評価することができる。これらの値は図4に示され、ここで試料の質量損失は、消費される有効エネルギーの関数として表される。
実施した試験を通して、10℃より高い材料温度を測定することは不可能であった。同様に、試料は重合(これは100℃よりはるかに高い温度で起きる)の痕跡を示さなかった。したがって試料の加熱は、その乾燥より明白ではなかった。
ホモジナイズ試験シーケンス6は、より湿った試料(それぞれ、より湿潤性の低い試料について)について20%の質量低下(それぞれ14%に対して)を示す。ホモジナイズが観察される。
時間差150秒:43
すなわち、(79−43)×100/79=46%
Claims (10)
- 鉱物繊維又は植物繊維の連続マット(12)、特にガラスタイプ又はロックタイプの繊維の連続マット(12)を加熱する方法であって、
− 水溶液中に希釈されたバインダーを含有する前記水溶液の、鉱物繊維又は植物繊維上への適用;
− 移動中のコンベア(10)上で連続マット(12)を形成するための前記繊維の成形;
− 前記バインダーの硬化温度より高い温度で、熱風流によって、オーブン(20)中を移動する前記マット(12)の加温;
を連続して含み、
前記オーブン(20)に入る前に、前記マット(12)の少なくとも部分的な乾燥をさらに含み、
前記少なくとも部分的な乾燥は、その周波数が3MHz〜300GHzである無線周波数電磁波を、移動中の前記マット(12)に照射することを含む、方法。 - 照射による少なくとも部分的な乾燥後の前記マット(12)中の水の存在を所定値より小さくするように、前記マット(12)を十分なパワーで照射する、請求項1に記載の方法。
- 前記照射パワーが、乾燥時の前記マット(12)の温度が前記バインダーの硬化温度より低いままであるように選択される、請求項1又は2に記載の方法。
- 前記照射パワーが、前記マット(12)内の水の質量%の左/右の差が、照射後に30%未満に低下されるように選択される、請求項1〜3のいずれか一項に記載の方法。
- 前記照射を、移動中の前記マット(12)の全幅にわたって行う、請求項1〜4のいずれか一項に記載の方法。
- 前記バインダーの硬化温度よりも低い温度の空気を、照射ゾーン中の前記マット(12)に吹き付けて水分を除去する、請求項1〜5のいずれか一項に記載の方法。
- 前記オーブン(20)の少なくとも1つの区画(24〜30)に吹き付けられる前記熱風の温度が、前記バインダーの硬化温度よりも少なくとも100℃以上高い、請求項1〜6のいずれか一項に記載の方法。
- 前記空気を、オーブン(20)に吹き付けてマットを通過させる、請求項1〜7のいずれか一項に記載の方法。
- 前記マット(12)の密度は5〜250kg/m3である、請求項1〜8のいずれか一項に記載の方法。
- 以下の工程を含む、鉱物繊維又は植物繊維の連続マットを製造する方法:
繊維化装置を用いて繊維化する工程、特に1つの若しくは複数の遠心機、又は1つの若しくは複数のロータを含む繊維化装置を用いて繊維化する工程;続いて
請求項1〜9のいずれか一項に記載の方法による加熱する工程。
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FR1257439 | 2012-07-31 | ||
FR1257439A FR2994201B1 (fr) | 2012-07-31 | 2012-07-31 | Procede de cuisson d'un matelas continu de fibres minerales ou vegetales |
PCT/FR2013/051795 WO2014020265A1 (fr) | 2012-07-31 | 2013-07-25 | Procede de cuisson d'un matelas continu de fibres minerales ou vegetales |
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JP2020529530A (ja) * | 2017-07-31 | 2020-10-08 | サン−ゴバン イゾベール | ミネラルウールを製造するための設備、及びそのような設備に装備する接着剤組成物を吐出するための装置 |
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FR3031119B1 (fr) | 2014-12-29 | 2022-05-27 | Saint Gobain Isover | Procede de mesure a l'interieur d'un matelas de fibres minerales ou vegetales |
EP3274279A4 (en) * | 2015-03-27 | 2018-11-14 | Charles Douglas Spitler | Skin stiffness characteristics and loft control production system and method with variable moisture content in input fiberglass |
ITUA20164307A1 (it) | 2016-06-13 | 2017-12-13 | Sacmi | Macchina e metodo per la compattazione di polvere ceramica |
DE102016122965A1 (de) * | 2016-11-29 | 2018-05-30 | Autefa Solutions Germany Gmbh | Textilfasertrocknung |
IT201700011589A1 (it) * | 2017-02-02 | 2018-08-02 | Patrizio Grando | Metodo per il trattamento di materiali fibrosi ed impianto che realizza il suddetto metodo di trattamento |
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EP2880210A1 (fr) | 2015-06-10 |
ES2609036T3 (es) | 2017-04-18 |
EP2880210B1 (fr) | 2016-09-28 |
CA2880836A1 (fr) | 2014-02-06 |
WO2014020265A1 (fr) | 2014-02-06 |
PL2880210T3 (pl) | 2017-04-28 |
DK2880210T3 (en) | 2017-01-16 |
FR2994201A1 (fr) | 2014-02-07 |
FR2994201B1 (fr) | 2014-08-08 |
US10279511B2 (en) | 2019-05-07 |
US20150190948A1 (en) | 2015-07-09 |
CA2880836C (fr) | 2020-04-07 |
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