JP6555369B2 - 熱風乾燥装置及びそれを用いた薄葉紙の製造方法 - Google Patents
熱風乾燥装置及びそれを用いた薄葉紙の製造方法 Download PDFInfo
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- JP6555369B2 JP6555369B2 JP2018022947A JP2018022947A JP6555369B2 JP 6555369 B2 JP6555369 B2 JP 6555369B2 JP 2018022947 A JP2018022947 A JP 2018022947A JP 2018022947 A JP2018022947 A JP 2018022947A JP 6555369 B2 JP6555369 B2 JP 6555369B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 124
- 238000001035 drying Methods 0.000 claims description 33
- 238000007602 hot air drying Methods 0.000 claims description 26
- 238000002485 combustion reaction Methods 0.000 description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000007789 gas Substances 0.000 description 17
- 239000000446 fuel Substances 0.000 description 10
- 238000012546 transfer Methods 0.000 description 8
- 230000003247 decreasing effect Effects 0.000 description 7
- 239000002803 fossil fuel Substances 0.000 description 7
- 230000009467 reduction Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- 239000002918 waste heat Substances 0.000 description 1
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Description
[式]Q[Kcal/min]=αAΔT
α:加熱媒体と水との熱伝達率[Kcal/m2・min・℃]
A:加熱媒体と水との接触面積[m2]
ΔT:加熱媒体と水との温度差[℃]
CH4+2(4N2+O2)=2H2O+CO2+8N2+発熱量
であり,完全燃焼のためには,CH4の1Nm3に対し,空気は10Nm3必要である。この比率は,石化燃料毎に異なるが,燃焼方程式から求めた理論比率の1.0〜1.5倍の比率が採用される。倍率が増えれば完全燃焼し易くなるので,灯油などの液体燃料では高めの数値を採用することが多いが,ガス燃料の場合には仮に僅かな未燃分が出ても煤が発生しないので,1.0倍に近い倍率で運転することが好ましい。しかし,空気の流量計は差圧伝送器が用いられることが多いが,誤差が生じ易い計器であるので,多少倍率を振ってみて,乾燥効率の良いところを見つけることが推奨される。
3…燃焼エア用配管 4…排気用配管
5…メイクアップエア用配管 10…エアキャップ
11…内部空間 12…噴出口
13…吸気口 20…加熱装置
30…循環ファン 40…ヤンキードライヤ
50…燃焼ファン 60…排気ファン
71…燃焼ダンパ 72…排気ダンパ
73…メイクアップエアダンパ 81…第1の熱交換器
82…第2の熱交換器 100…熱風乾燥装置
Claims (2)
- 湿潤した紙匹を乾燥させる熱風乾燥装置であって,
前記紙匹が走行する内部空間を有し,当該内部空間に加熱媒体が噴射される噴出口と,当該内部空間内の加熱媒体が吸引される吸気口とを持つエアキャップと,
前記エアキャップの噴出口に加熱媒体を供給する加熱装置と,
前記エアキャップの吸気口から吸引された加熱媒体を前記加熱装置に供給する循環ファンとを備え,
前記エアキャップの吸気口から前記加熱装置までの気流経路に装置外部の空気が流入せず,
前記エアキャップの内圧は,外圧未満であって,内外の気圧差が−0.01KPa以下−1KPa以上である
熱風乾燥装置。 - 熱風乾燥装置により湿潤した紙匹を乾燥させる工程を含む薄葉紙の製造方法であって,
前記熱風乾燥装置は,
前記紙匹が走行する内部空間を有し,当該内部空間に加熱媒体が噴射される噴出口と,当該内部空間内の加熱媒体が吸引される吸気口とを持つエアキャップと,
前記エアキャップの噴出口に加熱媒体を供給する加熱装置と,
前記エアキャップの吸気口から吸引された加熱媒体を前記加熱装置に供給する循環ファンとを備え,
前記エアキャップの吸気口から前記加熱装置までの気流経路に装置外部の空気が流入せず,
前記エアキャップの内圧は,外圧未満であって,内外の気圧差が−0.01KPa以下−1KPa以上である
薄葉紙の製造方法。
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WO2023042797A1 (ja) * | 2021-09-14 | 2023-03-23 | 株式会社イーボックス | 脱脂乾燥装置 |
WO2024157088A1 (en) * | 2023-01-27 | 2024-08-02 | Cmpc Tissue S.A. | Hybrid gas/electric air heating system for material drying systems |
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SE342273B (ja) * | 1965-09-23 | 1972-01-31 | Svenska Flaektfabriken Ab | |
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