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公开(公告)号：US11240952B2
公开(公告)日：2022-02-08
申请号：US16837705
申请日：2020-04-01
申请人： DARI-TECH, INC.
发明人： David C. DeWaard
IPC分类号： A01C3/02 , C02F9/00 , A01C3/06 , C02F101/30 , C02F103/20
摘要： A method and an apparatus for receiving manure from a vacuum truck, as that manure is collected from alleys of a dairy barn, includes receiving the manure in a mixing basin. The received manure is diluted in the mixing basin with a jet of water discharging a sufficient volume of water to form a sand-laden manure flow having a velocity of over 3 feet per second and dilute the received manure into a sand-laden manure suspension of less than seven percent manure solids. The resulting sand laden manure suspension is conducted into a vestibule of a sand settling lane to slow the flow of the sand laden manure suspension to enter a sand settling lane at a velocity of less than 1.25 feet per second. Sand is collected in the sand settling lane.
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2.发明授权公开(公告)号：US11122767B2
公开(公告)日：2021-09-21
申请号：US16707243
申请日：2019-12-09
申请人： Dari-Tech, Inc.
发明人： David DeWaard
摘要： A method and system for flushing an area of a robotic harvest dairy barn is presented. The method is based upon defining areas within the dairy barn that, by virtue of use of robots for “cow-initiated” milking will be maintained in a hygienically clean and dry condition with frequent flushings of short duration. The four areas of the barn felt to benefit from this frequent flushing including any of: an area immediately surrounding a robot; a holding area for staging cows for milking at the robot; a robot control room; and a milk collection room. In the relevant areas the flooring deck is configured to slope at its upper surface to define a drain area, the drain area including at least one grated drain positioned to collect any liquid deposited on the upper surface of the provided flooring deck. A collecting pipe network conducts liquid collected to a baffled tank.
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公开(公告)号：US20200094174A1
公开(公告)日：2020-03-26
申请号：US16681163
申请日：2019-11-12
申请人： Dari-Tech, Inc.
发明人： David DeWaard
IPC分类号： B01D33/11 , B01D33/80 , B01D33/067 , B01D33/72 , B01D33/50
摘要： A rotary screen separator includes a screen having a substantially cylindrical shape extending from a feed end to a discharge end along a horizontal longitudinal axis. The screen is perforated in a plurality of discrete regions. The regions including at least a first perforation region wherein the screen is perforated in a first perforation pattern and a second perforation wherein the screen is perforated in a second perforation pattern. The first perforation pattern is sized to allow liquid and finer particulate matter to pass through the perforations and the second perforation pattern is sized to allow liquid and coarser particulate matter to pass through the perforations in the second perforation pattern. A first vane structure is helically shaped at a first vane depth having a first vane pitch and handedness selected to advance feedstock within the screen as the screen is rotated in operation.
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公开(公告)号：US11858870B2
公开(公告)日：2024-01-02
申请号：US16788749
申请日：2020-02-12
申请人： Dari-Tech, Inc.
发明人： David DeWaard
IPC分类号： C05F17/986 , C05F1/00 , C05F17/10 , C05F17/40 , C05F17/979 , C12M1/107 , C12M1/26 , C12M1/00
CPC分类号： C05F17/986 , C05F1/007 , C05F17/10 , C05F17/15 , C05F17/40 , C05F17/979 , C12M21/04 , C12M23/58 , C12M33/12 , Y02A40/20 , Y02E50/30 , Y02P20/145 , Y02W30/40
摘要： A digester system comprising a primary digester tank containing a primary feed material portion, a secondary digester tank containing a secondary feed material portion, a first conduit connected between the primary digester tank and the secondary digester tank to define a primary tank lower opening within the primary digester tank and a secondary digester tank lower opening within the secondary digester tank, and a flow control valve configured to allow or prevent flow of fluid through the first conduit. When the flow control valve is configured to allow flow of fluid through the first conduit, a portion of the primary feed material portion flows from the primary digester tank to the secondary digester tank to form the secondary feed material portion.
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公开(公告)号：US20210352837A1
公开(公告)日：2021-11-18
申请号：US15930757
申请日：2020-05-13
申请人： Dari-Tech, Inc.
发明人： David DeWaard
摘要： An apparatus and a method for receiving sand-laden manure from a vacuum truck in a duty cycle begins by collecting water issuing through a flume valve in a mixing basin. The mixing basin includes a metering bulkhead which forms a weir having a weir height and includes a sand gate. The bulkhead impounds a pool of water to fill the mixing basin at least to the weir height, separating the mixing basin from a sand settling lane vestibule. The impounded water is present to receive a manure payload from the vacuum truck. Water issuing through a flume valve mixes with the received sand-laden manure to form a manure suspension. Water flow through the flume valve is interrupted once a selected volume of water and manure suspension has passed over the weir. Opening the sand gate releases the impounded manure suspension, water and settled sand to flow into the vestibule.
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公开(公告)号：US20210307237A1
公开(公告)日：2021-10-07
申请号：US16837705
申请日：2020-04-01
申请人： DARI-TECH, INC.
发明人： David C. DeWaard
摘要： A method and an apparatus for receiving manure from a vacuum truck, as that manure is collected from alleys of a dairy barn, includes receiving the manure in a mixing basin. The received manure is diluted in the mixing basin with a jet of water discharging a sufficient volume of water to form a sand-laden manure flow having a velocity of over 3 feet per second and dilute the received manure into a sand-laden manure suspension of less than seven percent manure solids. The resulting sand laden manure suspension is conducted into a vestibule of a sand settling lane to slow the flow of the sand laden manure suspension to enter a sand settling lane at a velocity of less than 1.25 feet per second. Sand is collected in the sand settling lane. Gravity urges the sand from the sand-laden manure suspension as it flows through the sand settling lane.
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公开(公告)号：US11490587B2
公开(公告)日：2022-11-08
申请号：US16673600
申请日：2019-11-04
申请人： Dari-Tech, Inc.
发明人： David DeWaard
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.
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公开(公告)号：US20200206661A1
公开(公告)日：2020-07-02
申请号：US16809066
申请日：2020-03-04
申请人： Dari-Tech, Inc.
发明人： David DeWaard
IPC分类号： B01D33/067 , B01D33/11 , B01D33/72 , B01D33/50 , B01D33/46
摘要： A cleaning system for a screen of a rotary screen separator for processing feed material comprising liquids and solids has a housing, an air source, and a conduit system. The housing defines at least one housing chamber, at least one inlet opening, and at least one outlet slot. The conduit system is operatively connected between the inlet opening of the housing and the air source. Air flows from the air source through conduit system, through the inlet opening, into the housing chamber, and out of the housing chamber through the at least one outlet slot in at least one air flow stream extending along a flow plane. The housing is arranged relative to the screen of the rotatory screen separator such that the air flow stream impinges on the screen to remove debris from the screen.
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公开(公告)号：US11248841B2
公开(公告)日：2022-02-15
申请号：US16718687
申请日：2019-12-18
申请人： Dari-Tech, Inc.
发明人： David DeWaard
摘要： A cylindrical drum having a plurality of vanes which extend radially into the drum and extend axially substantially the length of the drum rotates about its axis such that the plurality of vanes convey vegetable material from a lowest point in the interior of the drum to a highest point in the interior of the drum, there, to drop the vegetable matter downward within the interior of the drum. A plenum feeds air through a nozzle opening in a rectangular slot extending in its longest dimension substantially the length of the drum. The plenum and nozzle being housed to form a Coand{hacek over (a)}-effect nozzle body having a tear-shaped housing. Two Coand{hacek over (a)} surfaces are situated in opposed relation terminating at the nozzle. The Coand{hacek over (a)} surfaces to guide air into a combined flow. A hopper plate cooperates with the housing to form a hopper directing vegetable matter to collide with the combined flow.
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公开(公告)号：US20210190423A1
公开(公告)日：2021-06-24
申请号：US16718687
申请日：2019-12-18
申请人： Dari-Tech, Inc.
发明人： David DeWaard
摘要： A cylindrical drum having a plurality of vanes which extend radially into the drum and extend axially substantially the length of the drum rotates about its axis such that the plurality of vanes convey vegetable material from a lowest point in the interior of the drum to a highest point in the interior of the drum, there, to drop the vegetable matter downward within the interior of the drum. A plenum feeds air through a nozzle opening in a rectangular slot extending in its longest dimension substantially the length of the drum. The plenum and nozzle being housed to form a Coand{hacek over (a)}-effect nozzle body having a tear-shaped housing. Two Coand{hacek over (a)} surfaces are situated in opposed relation terminating at the nozzle. The Coand{hacek over (a)} surfaces to guide air into a combined flow. A hopper plate cooperates with the housing to form a hopper directing vegetable matter to collide with the combined flow.
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