公开(公告)号：US10933359B2

公开(公告)日：2021-03-02

申请号：US16372198

申请日：2019-04-01

申请人： Daritech, Inc.

发明人： David DeWaard

IPC分类号： B01D33/11 ,  B01D33/50 ,  B01D33/72 ,  B01D33/067 ,  B01D33/80

摘要： A feed system for a rotary screen separator has a feed housing and a feed lid movably attached to the feed housing. The feed housing has a feed chamber, an inlet opening, and an outlet opening. The feed chamber defines a proximal portion adjacent to the inlet opening and a distal portion at least a portion of which is adjacent to the an outlet opening. A cross-sectional area of at least a portion of the proximal portion is greater than a cross-sectional area of the distal portion. The feed lid is movably attached to the feed housing such that the feed lid covers the outlet opening in a closed position, and does not cover the outlet opening in at least one open position.

公开(公告)号：US20190224595A1

公开(公告)日：2019-07-25

申请号：US16372198

申请日：2019-04-01

申请人： Daritech, Inc.

发明人： David DeWaard

IPC分类号： B01D33/11 ,  B01D33/067 ,  B01D33/80 ,  B01D33/50 ,  B01D33/72

摘要： A feed system for a rotary screen separator has a feed housing and a feed lid movably attached to the feed housing. The feed housing has a feed chamber, an inlet opening, and an outlet opening. The feed chamber defines a proximal portion adjacent to the inlet opening and a distal portion at least a portion of which is adjacent to the an outlet opening. A cross-sectional area of at least a portion of the proximal portion is greater than a cross-sectional area of the distal portion. The feed lid is movably attached to the feed housing such that the feed lid covers the outlet opening in a closed position, and does not cover the outlet opening in at least one open position.

公开(公告)号：US20170209818A1

公开(公告)日：2017-07-27

申请号：US15464125

申请日：2017-03-20

申请人： Daritech, Inc.

发明人： David DeWaard

IPC分类号： B01D33/06 ,  B01D21/24 ,  B65G33/12 ,  B01D33/76

CPC分类号： B01D33/06 ,  B01D21/2461 ,  B01D33/72 ,  B01D33/76 ,  B65G33/12 ,  B65G2201/045

摘要： A processing system for processing raw slurry material comprising at least liquid, sand, and contaminates comprises a barrel member, at least one transport member, at least one separator member, and a drive system. As the drive system rotates the barrel member about the barrel longitudinal axis, a portion of the raw slurry material is transported through a pre-processing portion of the processing chamber. At least a portion of the liquid and at least a portion of the contaminates in the raw slurry material flows back down the pre-processing portion of the processing chamber towards a barrel inlet. At least one intermediate opening is arranged such that at least a portion of the contaminates in the raw slurry material flowing down through the pre-processing portion of the processing chamber passes through the at least one intermediate opening.

公开(公告)号：US20130299395A1

公开(公告)日：2013-11-14

申请号：US13891097

申请日：2013-05-09

申请人： DARITECH, INC.

发明人： David DeWaard

IPC分类号： B07B1/00

CPC分类号： B03B7/00 ,  B03B5/56 ,  B07B1/00 ,  B07B1/24

摘要： A rotary screen separator for processing feed material comprising liquids and solids, the rotary screen separator comprising a separator member, a collector structure, a drive system, and first and second vane structures. The separator member defines a first perforation region and a second perforation region. The collector structure defines a first material output and a second material output. The vane structures are supported relative to the separator member such that operation of the drive system to rotate the separator member causes the first vane structure to displace the feed material through the first perforation region at a first material displacement rate and the second vane structure to displace the feed material through the second perforation region at a second material displacement rate. The first material displacement rate is greater than the second material displacement rate.

摘要翻译： 一种用于处理包含液体和固体的进料的旋转筛分离器，所述旋转筛分离器包括分离器部件，收集器结构，驱动系统以及第一和第二叶片结构。 分离器构件限定第一穿孔区域和第二穿孔区域。 收集器结构限定了第一材料输出和第二材料输出。 叶片结构相对于分离器构件被支撑，使得驱动系统的旋转分离器构件的操作使得第一叶片结构以第一材料位移速率使进料通过第一穿孔区域移动，并且第二叶片结构移位 所述进料通过所述第二穿孔区域以第二材料位移速率。 第一材料位移速率大于第二材料位移速率。

公开(公告)号：US10793483B2

公开(公告)日：2020-10-06

申请号：US16054895

申请日：2018-08-03

申请人： DariTech, Inc.

发明人： David DeWaard ,  Josh McCort ,  Michael Klapper

IPC分类号： C05F3/00 ,  C05F17/00 ,  C05F3/06 ,  C05C3/00 ,  B01D21/26 ,  B01D19/00 ,  B01D1/28 ,  B01D5/00 ,  C02F9/00 ,  C02F1/20 ,  C02F1/38 ,  A01C3/00 ,  C02F1/04 ,  C02F101/16 ,  C02F103/20 ,  C02F11/04

摘要： A system and method for reclaiming nutrients from dairy manure includes a centrifuge for separating a liquid fraction of the manure from a solid fraction comprising organic material; a mechanical vapor recompression evaporator (“MVR”) to receive the liquid fraction from the centrifuge and evaporating the liquid fraction by mechanical vapor recompression to produce ammonia-laden water vapor and a concentrated nutrient slurry; a dryer for drying the nutrient slurry to a selected moisture content to be available as an ingredient in compounded fertilizer; and an ammonia stripping tower assembly to receive ammonia-laden water vapor from the MVR and from it to precipitate ammonium sulphate salt and condense water as separate products.

公开(公告)号：US10603675B2

公开(公告)日：2020-03-31

申请号：US14928296

申请日：2015-10-30

申请人： Daritech, Inc.

发明人： David DeWaard

IPC分类号： B01D33/11 ,  B03B5/28 ,  B03B11/00 ,  B01D33/067

摘要： A separation system for separating solids from a slurry of waste material, the separation system comprising a housing, a drum assembly, and a drive assembly. The housing defines a collection chamber. Liquid within the collection chamber defines a liquid level. The drum assembly defines a perforated cylindrical wall and the drum assembly is supported such that at least a portion of the drum assembly is below the liquid level. The drive assembly rotates the drum assembly relative to the housing.

公开(公告)号：US10568298B2

公开(公告)日：2020-02-25

申请号：US15596704

申请日：2017-05-16

申请人： DariTech, Inc.

发明人： David DeWaard

IPC分类号： A01K1/01 ,  B01D21/34 ,  B01D21/01 ,  B01D36/04 ,  B65D88/54 ,  A01C3/02

摘要： A method and apparatus for collecting agricultural manure in a confined animal feeding operation includes a separator which receives heavy manure removing particulate from suspension to produce light manure. Heavy manure is collected to a volume of heavy manure sufficient to substantially fill the first tank. Within the first tank, particulate migrates, due to the influence of gravity to form a layer containing manure comprising a lesser density of particulate than is present in the volume of heavy manure. Additional heavy manure buoys the layer such that the upper surface exceeds a height of a weir. The weir is situated in a channel communicating between the first tank and a second tank configured to receive light manure from the separator.

公开(公告)号：US10286340B2

公开(公告)日：2019-05-14

申请号：US14722590

申请日：2015-05-27

申请人： Daritech, Inc.

发明人： David DeWaard

IPC分类号： B01D33/11 ,  B01D33/50 ,  B01D33/72 ,  B01D33/067 ,  B01D33/80

摘要： A feed system for a rotary screen separator has a feed housing and at least one feed lid movably attached to the feed housing. The feed housing has a feed chamber, an inlet opening, and at least one outlet opening. The feed chamber defines a proximal portion adjacent to the inlet opening and a distal portion at least a portion of which is adjacent to the at least one outlet opening. A cross-sectional area of at least a portion of the proximal portion is greater than a cross-sectional area of the distal portion. The at least one feed lid is movably attached to the feed housing such that the at least one feed lid covers the at least one outlet opening in a closed position, and does not cover the at least one outlet opening in at least one open position.

公开(公告)号：US20190119174A1

公开(公告)日：2019-04-25

申请号：US15792442

申请日：2017-10-24

申请人： DariTech, Inc.

发明人： David DeWaard ,  Josh McCort ,  Michael Klapper

IPC分类号： C05C3/00 ,  C05F3/00 ,  C05F17/00 ,  C05F3/06 ,  C05F17/02

摘要： To produce fertilizer, a system and method concentrates manure slurry in a mechanical vapor recompression evaporator (“MVR”) having a heat exchanger. The MVR receives the manure slurry within a first side to evaporate ammonia laden-water vapor from the slurry, leaving a nutrient concentrate. A compressor raises the evaporated ammonia-laden water vapor to a higher energy state. Within a second side of the heat exchanger, the compressed water vapor conveys heat to the slurry. Ammonia-laden water condenses in the second side at a process temperature to be conveyed to an ammonia stripping tower where the ammonia-laden water is dispersed into ammonia-laden water droplets. In the tower, a flow of air is directed across a surface of the ammonia-laden water droplets, the process temperature having been selected to promote the escape of ammonia gas from the ammonia-laden water droplets, the flow of air provided to entrain ammonia gas in the flow.

公开(公告)号：US20190119179A1

公开(公告)日：2019-04-25

申请号：US16055500

申请日：2018-08-06

申请人： DariTech, Inc.

发明人： David DeWaard ,  Josh McCort ,  Michael Klapper

IPC分类号： C05F17/00 ,  A01C3/02 ,  C05F3/06 ,  C05F17/02

摘要： To produce fertilizer, a system and method concentrates manure slurry in a mechanical vapor recompression evaporator (“MVR”) having a heat exchanger. The MVR receives the manure slurry within a first side to evaporate ammonia laden-water vapor from the slurry, leaving a nutrient concentrate. A compressor raises the evaporated ammonia-laden water vapor to a higher energy state. Within a second side of the heat exchanger, the compressed water vapor conveys heat to the slurry. Ammonia-laden water condenses in the second side at a process temperature to be conveyed to an ammonia stripping tower where the ammonia-laden water is dispersed into ammonia-laden water droplets. In the tower, a flow of air is directed across a surface of the ammonia-laden water droplets, the process temperature having been selected to promote the escape of ammonia gas from the ammonia-laden water droplets, the flow of air provided to entrain ammonia gas in the flow.