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公开(公告)号：US12091605B2
公开(公告)日：2024-09-17
申请号：US17229944
申请日：2021-04-14
发明人： Brandon Sandy , Dominic Deangelo
摘要： Some methods for making a granular material comprise crushing demetallized slag particles with one or more crushers and screening the crushed demetallized slag particles with one or more screens to separate the demetallized slag particles into two or more fractions, the granular material comprising at least one of the fractions of the demetallized slag particles. Prior to the crushing, ones of the demetallized slag particles having a size that is less than or equal to 2 inches can account for at least 90% of the demetallized slag particles. An iron-compound content of the demetallized slag particles, by weight, can be less than or equal to 10%. Crushing and screening can be performed such that ones of the demetallized slag particles of the granular material having a size that is less than or equal to 1.25 mm account for at least 90% of the demetallized slag particles of the granular material.
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公开(公告)号：US11970754B2
公开(公告)日：2024-04-30
申请号：US17584606
申请日：2022-01-26
发明人： Timothy F. Conway
IPC分类号： B03B9/04 , B02C17/10 , B02C17/14 , B02C17/18 , B02C23/10 , B02C23/14 , B03B9/06 , C22B1/00 , C22B1/248 , C22B15/00 , C22B21/00
CPC分类号： C22B1/248 , B02C17/10 , B02C17/14 , B02C17/1855 , B02C23/10 , B02C23/14 , B03B9/04 , B03B9/061 , C22B1/005 , C22B15/0006 , C22B21/0007 , B03B2009/068 , Y02P10/20 , Y02W30/52
摘要： A method and apparatus to reclaim metals from scrap material such as automobile shredder residue (ASR) that, after separating out light density components, separates out friable material such as rock and glass by crushing and screening operations to generate a high metal content product.
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公开(公告)号：US20240066524A1
公开(公告)日：2024-02-29
申请号：US18329889
申请日：2023-06-06
发明人： Tsung-Chi LI
CPC分类号： B02C19/005 , B02C23/14
摘要： A regeneration treatment method of waste shell-mold and a system thereof are provided. The regeneration treatment method has a raw smashing step, a smashed-particle sieving step smashed-particle, a first magnetic separation step, a grinding step, a second magnetic separation step, a dry pneumatic flotation step, and a vibration sieving step in sequence to obtain a regenerated shell-mold sand. The refined shell-mold sand is obtained from the smashed-particle sieving step. Silica binders of the refined shell-mold sand is effectively removed by the grinding step. Furthermore, particle sizes of the regenerated shell-mold sand fall in a suitable range in the grinding step. Magnetic metals mixed in the waste shell-mold are effectively removed by the first and second magnetic separation steps. Non-magnetic impurity are further removed by the dry pneumatic flotation step. Therefore, the regenerated shell-mold sand are suitable to substitute original shell-mold sand.
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公开(公告)号：US20240017271A1
公开(公告)日：2024-01-18
申请号：US18113943
申请日：2023-02-24
发明人： Brian D. Brown
CPC分类号： B03C1/247 , B07C5/3422 , B02C23/14 , B07C5/344 , B07C2501/0063 , B03C2201/20
摘要： A system for processing scrap material that includes a variable-power electromagnetic drum separator wherein shredded scrap material is placed in free fall at a position proximate the electromagnetic drum separator. A first fraction of the scrap material is attracted to the electromagnetic drum separator and is carried under the rotational axis of the electromagnetic drum separator thereby separating the first fraction of material from a second fraction of the material which continues to free fall and wherein the first fraction is a low-copper ferrous material with the second fraction having a higher non-ferrous content than the first fraction. A magnetic drum separator may be positioned upstream of the variable-power electromagnetic drum separator and be used to separate non-ferrous materials. The variable-power electromagnetic drum separator may be adjusted so that the second fraction includes some ferrous material. A robotic picker may be used to remove undesirable materials from the second fraction.
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公开(公告)号：US11806724B2
公开(公告)日：2023-11-07
申请号：US17294132
申请日：2019-08-16
摘要： An apparatus for processing magnetite iron ore, including a screen arranged to send oversize material to a regrind mill and undersize material to a high grade concentrate thickener and includes a CCD thickener type system for product grade improvements.
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公开(公告)号：US11795480B2
公开(公告)日：2023-10-24
申请号：US17009456
申请日：2020-09-01
申请人： POET Research, Inc.
发明人： Steven Redford , Todd Peterson
摘要： Methods and systems for isolating a high purity starch stream are provided. The methods provide an initial treatment step in advance of traditional grinding or fractionation operations (such as dry milling or wet milling operations) that facilitate separation of starch from other components of starch-based grains, for example facilitate separation of soft endosperm from other components of corn kernels including hard endosperm. The systems include a first treatment system for separating a high purity starch stream from other components of the grain stream, wherein the system can be configured as a bolt on for traditional milling operations such as wet milling and dry milling operations.
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公开(公告)号：US11712698B2
公开(公告)日：2023-08-01
申请号：US16910164
申请日：2020-06-24
发明人： Yonatan Medhin , Matthew Mechtly
IPC分类号： B02B1/08 , B02C9/04 , B02C9/02 , B02B5/02 , B02C19/18 , B02C23/14 , B02C23/18 , B02C19/22 , C12F3/00
CPC分类号： B02B1/08 , B02B5/02 , B02C9/02 , B02C9/04 , C12F3/00 , B02C19/186 , B02C19/22 , B02C23/14 , B02C23/18
摘要： A process for converting spent grain into flour by drying and milling is disclosed. The process includes the steps of introducing a quantity of wet spent grain into a container for removing moisture by the action of gravity. After the gravity drying, the wet spent grain is transferred to a press to mechanically remove additional moisture. The wet spent grain is placed in a fluid bed processor where the grain additional moisture is removed through heating and fluidization. Some embodiments may include a dust collection system in connection with the fluid bed processor, wherein the dust collection system incorporates a separator for separating the grains. Once dried, the dry spent grain is introduced into a mill to be ground into the proper flour consistency. The resulting flour product can then be used for a variety of foodstuff applications.
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公开(公告)号：US20230201896A9
公开(公告)日：2023-06-29
申请号：US16908757
申请日：2020-06-23
发明人： George Gitschel
CPC分类号： B09B5/00 , C10G1/10 , C10L5/46 , B09B3/00 , B03B9/06 , B02C23/14 , Y02T10/16 , Y02E50/10 , Y02E50/30 , Y02E50/343 , C10G2300/1003 , B29B17/02
摘要： Solid waste that includes a mixture of wet organic material and dry organic material can be are separated using mechanical separation to produce a wet organic stream enriched in wet organics and a dry organic stream enriched in dry organics. The separated wet organic stream and dry organic stream are separately converted to renewable or recyclable products using different conversion techniques particularly suited for the separated wet and dry organic streams.
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公开(公告)号：US11517913B2
公开(公告)日：2022-12-06
申请号：US16766381
申请日：2018-12-03
申请人： GOLDCORP INC.
发明人： Peter Lind , Simon Hille , Marcus Tomlinson
摘要： Methods and systems for preparing ore for precious metal extraction is provided. For example, a method comprises crushing ore; grinding the crushed ore; screening the ground ore to separate ore particles into a first group of large ore particles and a first group of small ore particles; crushing the first group of large ore particles; screening the crushed ore to separate into a second group of large ore particles and a second group of small ore particles; separating the second group of small ore particles from the screen into a third group of large particles and a third group of small particles; milling the third group of large ore particles; separating milled particles into a fourth group of large particles and a fourth group of small particles; and sending the third and fourth group of small particles for further metal extraction processing.
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公开(公告)号：US20220184633A1
公开(公告)日：2022-06-16
申请号：US17385363
申请日：2021-07-26
发明人： Raymond C. FRITZ , Raymond J. FRITZ
摘要： A system and method directed to the economical recovery of valuable iron constituents from iron blast furnace and steel-making slag fines wherein the slag is obtained and subjected to a series of classification steps which progressively sort the slag fines by various physical characteristics, including magnetism, size, and density, into relatively iron-rich and relatively iron-poor classifications, resulting in the isolation of iron-rich commercial byproduct at one or more of the classification steps.
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