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公开(公告)号：US09897376B2
公开(公告)日：2018-02-20
申请号：US15125443
申请日：2015-06-01
发明人： Yoichi Nakata , Sumito Sato , Satoshi Suwa , Tomonori Watarai
CPC分类号： F26B17/32 , C10L5/04 , C10L9/08 , C10L2290/08 , F26B3/02 , F26B3/20 , F26B3/22 , F26B23/10 , F26B25/001
摘要： To provide a drying method for processing material and a horizontal rotary dryer allowing easy performance of mass processing of the processing material and enabling size reduction by improving drying performance of the dryer. In a drying method for processing material in which a horizontal rotary dryer provided with: a rotating shell having a feed port for processing material on one end side thereof and a discharge port for processing material on the other end side thereof, and capable of freely rotating around an axial center; and a group of heating tubes through which a heating medium passes, provided within the rotating shell, and configured in a manner that the processing material is lifted up in a rotational direction by the group of heating tubes in accordance with the rotation of the rotating shell, is used, and the processing material is dried, through indirect heating, by using the group of heating tubes in a process of feeding the processing material to the one end side of the rotating shell and discharging the processing material from the other end side of the rotating shell, the rotating shell is rotated to make a critical speed ratio α defined by the following expression 1 and expression 2 become 30 to less than 100% to dry the processing material, Vc=2.21D1/2 Expression 1 α=V/Vc·100 Expression 2 wherein Vc indicates a critical speed (m/s), D indicates an inside diameter (m) of the rotating shell, α indicates the critical speed ratio (%), and V indicates a rotation speed (m/s).
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公开(公告)号：US10371444B2
公开(公告)日：2019-08-06
申请号：US15123561
申请日：2015-12-09
发明人： Yoichi Nakata , Yuichi Ono , Satoshi Suwa , Sumito Sato
摘要： To provide a drying method for terephthalic acid and a horizontal rotary dryer allowing easy performance of mass processing of the terephthalic acid and enabling size reduction by improving drying performance of the dryer. In a method of drying terephthalic acid by using a horizontal rotary dryer, a rotating shell is rotated to make a critical speed ratio α defined by expression 1 and expression 2 become 17 to less than 80% to dry the processing material, Vc=2.21D½ Expression 1 α=V/Vc·100 Expression 2 wherein Vc indicates a critical speed (m/s) of the rotating shell, D indicates an inside diameter (m) of the rotating shell, α indicates the critical speed ratio (%) of the rotating shell, and V indicates a rotation speed (m/s) of the rotating shell.
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公开(公告)号：US20170248365A1
公开(公告)日：2017-08-31
申请号：US15596123
申请日：2017-05-16
发明人： Masaki Kataoka , Satoshi Suwa , Keisuke Matsuda
CPC分类号： F26B17/32 , F26B11/0404 , F26B11/0409 , F26B11/0445 , F26B11/045 , F26B2200/02 , F26B2200/24
摘要： Provided is an indirectly heating rotary dryer which has achieved enhanced energy-saving performance by reducing heating tubes non-contacting with material to be dried and reducing power required for rotation even when a hold up ratio is increased.Specifically provided is an indirectly heating rotary dryer having four partition walls 16 extended respectively along an shaft center C in an inner space of a rotating shell 10 at angle intervals of 90 degrees in the vertical and horizontal directions. The four partition walls 16 partition the inner space of the rotating shell 10 at a lateral section of the rotating shell 10 into four approximately-sector-shaped small spaces K respectively extended along the shaft center C. Heating tubes 11 are aligned in the rotating shell 10 in three lines extended respectively in parallel to the shaft center C of the rotating shell 10. The heat tubes 11 heat and dry the material H to be dried by supplying heated steam to the heating tubes 11 and performing heat exchange with the material H to be dried in the rotating shell 10.
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4.发明授权公开(公告)号：US10279287B2
公开(公告)日：2019-05-07
申请号：US15110538
申请日：2014-12-22
发明人： Yoichi Nakata , Tomonori Watarai , Sumito Sato , Satoshi Suwa , Tomoki Homma
摘要： Prevention of contamination of a dried product, deformation of particles, and a change of particle size distribution. The system includes: a solid-liquid separator in which a processing material is supplied between a pair of endless separation filter cloths wound around an outer periphery of a separation roll, and is dehydrated by being squeezed therebetween and also by ventilation gas passing from a ventilation port formed in an outer peripheral surface of the separation roll; and a horizontal rotary dryer provided on a subsequent stage of the solid-liquid separator, wherein carrier gas is made to flow in a rotating shell of the dryer in a cocurrent manner in the same direction as a conveyance direction of the processing material.
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5.发明申请EQUIPMENT FOR SOLID-LIQUID SEPARATION AND DRYING OF FINE-POWDER SLURRY, AND METHOD THERFOR 审中-公开固体液体分离和微粉浆干燥设备及方法公开(公告)号：US20160325209A1
公开(公告)日：2016-11-10
申请号：US15110538
申请日：2014-12-22
发明人： Yoichi Nakata , Tomonori Watarai , Sumito Sato , Satoshi Suwa , Tomoki Homma
CPC分类号： B01D33/642 , B01D33/666 , F26B5/14 , F26B17/02 , F26B17/28 , F26B17/32
摘要： Prevention of contamination of a dried product, deformation of particles, and a change of particle size distribution. The system includes: a solid-liquid separator in which a processing material is supplied between a pair of endless separation filter cloths wound around an outer periphery of a separation roll, and is dehydrated by being squeezed therebetween and also by ventilation gas passing from a ventilation port formed in an outer peripheral surface of the separation roll; and a horizontal rotary dryer provided on a subsequent stage of the solid-liquid separator, wherein carrier gas is made to flow in a rotating shell of the dryer in a cocurrent manner in the same direction as a conveyance direction of the processing material.
摘要翻译： 防止干燥产品的污染，颗粒的变形和粒度分布的变化。 该系统包括：固液分离器，其中处理材料供应在卷绕在分离辊的外周上的一对环形分离滤布之间，并且通过在它们之间被挤压而脱水，并且还通过从通风口通过的通风气体 端口形成在分离辊的外周表面中; 以及设置在固液分离器的后续阶段的水平旋转干燥机，其中使载气以与处理材料的输送方向相同的方向并流地在干燥机的旋转壳中流动。
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公开(公告)号：US10088231B2
公开(公告)日：2018-10-02
申请号：US15596123
申请日：2017-05-16
发明人： Masaki Kataoka , Satoshi Suwa , Keisuke Matsuda
摘要： Provided is an indirectly heating rotary dryer which has achieved enhanced energy-saving performance by reducing heating tubes non-contacting with material to be dried and reducing power required for rotation even when a hold up ratio is increased.Specifically provided is an indirectly heating rotary dryer having four partition walls 16 extended respectively along an shaft center C in an inner space of a rotating shell 10 at angle intervals of 90 degrees in the vertical and horizontal directions. The four partition walls 16 partition the inner space of the rotating shell 10 at a lateral section of the rotating shell 10 into four approximately-sector-shaped small spaces K respectively extended along the shaft center C. Heating tubes 11 are aligned in the rotating shell 10 in three lines extended respectively in parallel to the shaft center C of the rotating shell 10. The heat tubes 11 heat and dry the material H to be dried by supplying heated steam to the heating tubes 11 and performing heat exchange with the material H to be dried in the rotating shell 10.
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