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1.发明公开公开(公告)号：US20240279773A1
公开(公告)日：2024-08-22
申请号：US18559248
申请日：2023-09-08
发明人： Peng GAO , Shuai YUAN , Jilai NING , Yuexin HAN , Yanjun LI , Yongsheng SUN , Wenbo LI
摘要： A mixed rare earth concentrate mineral and suspended mineral phase transformation-clean leaching system and a use method thereof are provided. The system comprises a Venturi dryer, a multi-stage separator, a suspension preheating decomposition furnace, a multi-state fluidization sealing valve, a mineral phase transformation machine, a ball mill, a multi-stage acid leaching tank, an alkali leaching tank and a neutralization tank. The use method comprises the steps: after preheating mixed rare earth concentrate mineral powder, placing the preheated mixed rare earth concentrate mineral powder in a suspension preheating decomposition furnace for preheating decomposition to enable the powder to be in the suspension state, after cyclone separation, enabling the powder to enter a mineral phase transformation machine for mineral phase transformation, after ball milling, performing acid washing, performing alkali decomposition on acid leached residues, performing acid leaching twice on acid liquor, and neutralizing leached products to obtain neutralization residues.
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2.发明公开公开(公告)号：US20240327946A1
公开(公告)日：2024-10-03
申请号：US18712175
申请日：2020-06-18
发明人： Yuexin HAN , Shuai YUAN , Peng GAO , Yanjun LI , Yongsheng SUN
CPC分类号： C22B1/10 , C21B13/0033 , C22B1/24 , C22B47/00
摘要： A suspension roasting system includes a feeding bin, a Venturi dryer, a first cyclone preheater, a second cyclone preheater, a pre-oxidation suspension roasting furnace, a thermal separation cyclone cylinder, a suspension and reduction roasting furnace, a collecting bin, a grinding machine, a magnetic ore separator and a draught fan. A suspension roasting method includes: crushing iron and manganese ores; conveying the ores to the Venturi dryer; starting the draught fan and enabling combustion gas in the Venturi dryer to be mixed with dust ores to remove water; enabling obtained solid materials to enter the pre-oxidation suspension roasting furnace after being preheated by the first and second cyclone preheaters; enabling obtained gas to enter the suspension and reduction roasting furnace through the thermal separation cyclone cylinder; performing suspension and reduction roasting; enabling obtained reducing slag powder to enter the collecting bin through cooling cyclone cylinders; and performing grinding and magnetic separation.
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3.发明申请公开(公告)号：US20180361395A1
公开(公告)日：2018-12-20
申请号：US15991690
申请日：2018-05-29
发明人： Yuexin HAN , Yanjun LI , Shuai YUAN , Peng GAO , Yongsheng SUN , Wenbo LI
摘要： The invention discloses a multi-stage suspension magnetizing roasting-magnetic separation system and method for refractory iron ore, which belongs to the field of mineral processing technology. This system comprises multistage suspension preheater, multistage suspension oxidizer, multistage suspension redactor, on-line grade analyzer, ore-like splitter, magnetic separator, dust remover, roots blower and other components and connection modes. The refractory iron ore treated by the present method can be produced to homogeneous magnetite or maghemite accurately, and through magnetic separation, on-line grade analyzer detection and ore-like splitter, the concentrate powder which reach the set grade can be obtained, and the unqualified ore powder enters the next stage of oxidation-reduction-magnetic separation-split treatment. Through the present system and method, products with different roasting quality can be obtained, and can avoid the phenomenon of over burning or under burning occurring in the past process and equipment.
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公开(公告)号：US20210094043A1
公开(公告)日：2021-04-01
申请号：US16765279
申请日：2019-07-16
发明人： Shuai YUAN , Peng GAO , Yuexin HAN , Yanjun LI , Liren HAN
摘要： A high-voltage electric pulse device for crushing pretreatment of ores includes an ore feeding bin, a pulse insulating barrel body, a supporting frame, a pulsation device, a product collector and a power supply. The pulse insulating barrel body and the pulsation device are assembled together, a pulsation insulating barrel body is connected with an actuating diaphragm, the actuating diaphragm is connected with an ore discharging outlet, a pulsation cone is arranged in the ore discharging outlet, the pulsation cone is hinged to a connecting rod, and the connecting rod is hinged to an eccentric wheel. Expanding and contracting devices are arranged on a cover plate, a copper bar of each expanding and contracting device is connected to a corresponding high-voltage ceramic capacitor through a high-voltage wire in parallel. A high-voltage negative pole is mounted on a screen cloth at the pulse insulating barrel body.
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