公开(公告)号：US5966838A

公开(公告)日：1999-10-19

申请号：US935674

申请日：1997-09-23

申请人： Georg Krebs ,  Erwin Brunnmair ,  Peter Commerford

发明人： Georg Krebs ,  Erwin Brunnmair ,  Peter Commerford

IPC分类号： B01D53/00 ,  C02F11/12 ,  F23G7/06 ,  F26B21/04 ,  F26B23/02 ,  F26B3/00

CPC分类号： F26B21/04 ,  B01D53/005 ,  C02F11/12 ,  F23G7/065 ,  F26B23/022 ,  F26B2200/18

摘要： A process and apparatus for drying material, particularly sludges, with indirectly heated driers includes a system for the thermal decontamination of exhaust air from the drier. Excess exhaust air from the drier loop is fed as secondary air to the heating boiler or furnace separately from the primary air for combustion of the fuel and to thermally clean the exhaust air from the drier. The exhaust drier gas from the drier remains in the furnace for a period to decontaminate the drier gas, after which it is mixed with the flue gases. The mixture is then removed from the furnace. The system is suitable for operation under normal operating temperatures and at low, below normal operating temperatures.

公开(公告)号：US5318184A

公开(公告)日：1994-06-07

申请号：US941574

申请日：1992-09-10

申请人： Georg Krebs

发明人： Georg Krebs

IPC分类号： B07B9/00 ,  C02F11/12 ,  C05F7/00 ,  F26B1/00 ,  F26B25/00

CPC分类号： C02F11/12 ,  B07B9/00 ,  C05F7/00 ,  F26B1/00 ,  F26B25/002 ,  F26B2200/18 ,  Y10S209/93

摘要： A sludge drying system using exhaust air from a furnace in a direct heat, rotary drum dryer to simultaneously dry and pelletize the sludge. The dried sludge particles exiting the dryer is entrained in the exhaust air. The sludge particles are separated from the exhaust air and then classified according to size. The under sized particles are recycled back to a mixer for mixing with incoming wet sludge. The oversized particles are conveyed to a crusher or mill for reducing the oversized particles down to the desired product size. The medium-sized particles can be selectively directed to be recycled with the undersized particles or collected as product. The exhaust air is treated in a treatment section, and then divided into two exhaust air streams or portions. A first portion of the exhaust air is discharged into the environment, while the second, larger portion of the exhaust air is recycled back to the furnace to be used to dry the sludge in the drier.

摘要翻译： 一种污泥干燥系统，在直接加热的旋转鼓式干燥器中使用来自炉的排气，同时干燥并造粒污泥。 离开干燥器的干燥污泥颗粒被夹带在排气中。 污泥颗粒与废气分离，然后根据尺寸分类。 将下面尺寸的颗粒再循环回到混合器中以与进入的湿污泥混合。 将过大的颗粒输送到破碎机或磨机，以将过大的颗粒减少到所需的产品尺寸。 可以选择性地将中等尺寸的颗粒导向为用过小颗粒再循环或作为产物收集。 废气在处理部分处理，然后分成两个排气流或部分。 废气的第一部分被排放到环境中，而第二较大部分的废气被再循环回到炉子中以用于干燥干燥器中的污泥。

公开(公告)号：US6058619A

公开(公告)日：2000-05-09

申请号：US354104

申请日：1999-07-15

申请人： Georg Krebs ,  Erwin Brunnmair ,  Peter Commerford

发明人： Georg Krebs ,  Erwin Brunnmair ,  Peter Commerford

IPC分类号： F26B23/02 ,  F26B21/06

CPC分类号： F26B23/022

摘要： A process and apparatus for drying material, particularly sludges, with indirectly heated driers includes a system for the thermal decontamination of exhaust air from the drier. Excess exhaust air from the drier loop is fed as secondary air to the heating boiler or furnace separately from the primary air for combustion of the fuel and to thermally clean the exhaust air from the drier. The exhaust drier gas from the drier remains in the furnace for a period to decontaminate the drier gas, after which it is mixed with the flue gases. The mixture is then removed from the furnace. The system is suitable for operation under normal operating temperatures and at low, below normal operating temperatures.

摘要翻译： 用间接加热的干燥器干燥材料，特别是淤泥的方法和设备包括用于对来自干燥器的排气进行热去污的系统。 来自干燥回路的过量排出的空气作为二次空气作为二次空气与一次空气分开地供给到加热锅炉或炉内，用于燃烧燃料，并将干燥机的排出空气热清洗。 来自干燥器的排气干燥器气体在炉中保留一段时间以净化干燥气体，之后与烟道气混合。 然后将混合物从炉中取出。 该系统适用于正常工作温度和低于正常工作温度以下的运行。

公开(公告)号：US5309849A

公开(公告)日：1994-05-10

申请号：US887016

申请日：1992-05-22

申请人： Georg Krebs

发明人： Georg Krebs

IPC分类号： F26B23/02 ,  F26B25/00 ,  F23G5/04

CPC分类号： F26B25/005 ,  F26B23/02

摘要： A sludge drying system using exhaust air from a furnace in a direct heat, rotary drum dryer to simultaneously dry and pelletize the sludge. The dried sludge particles exiting the dryer is entrained in the exhaust air. The sludge particles are separated from the exhaust air and then classified according to size. The exhaust air is treated in a treatment section, and then divided into two exhaust air streams or portions. A first portion of the exhaust air is discharged into the environment, while the second, larger portion of the exhaust air is recycled back to the furnace to be used to dry the sludge in the drier. In one embodiment, the exhaust air treatment section is provided with a spray condenser and a bio-filter. In another embodiment, the exhaust air treatment section is provided with a heat exchanger for exhaust air. In yet another embodiment, the exhaust air treatment section is provided with a heat exchanger for the cooling water of the condenser as well as a heat exchanger for the recycled exhaust air. In still another embodiment, the exhaust air treatment section is provided with a plurality of heat exchangers and the furnace is modified with an exhaust air deodorizing chamber.

摘要翻译： 一种污泥干燥系统，在直接加热的旋转鼓式干燥器中使用来自炉的排气，同时干燥并造粒污泥。 离开干燥器的干燥污泥颗粒被夹带在排气中。 污泥颗粒与废气分离，然后根据尺寸分类。 废气在处理部分处理，然后分成两个排气流或部分。 废气的第一部分被排放到环境中，而第二较大部分的废气被再循环回到炉子中以用于干燥干燥器中的污泥。 在一个实施例中，排气处理部设置有喷雾冷凝器和生物过滤器。 在另一个实施例中，排气处理部设置有排气用热交换器。 在另一个实施例中，排气处理部设置有用于冷凝器的冷却水的热交换器以及用于再循环废气的热交换器。 在另一个实施例中，排气处理部设置有多个热交换器，并且炉子被排气除臭室改型。