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公开(公告)号:US20210285071A1
公开(公告)日:2021-09-16
申请号:US16340744
申请日:2017-10-10
Inventor: Mikko VEPSÄLÄINEN , Miao CHEN , David MOLENAAR , Anthony KILPATRICK
IPC: C22B3/04 , G01N7/00 , G01N27/02 , G01N27/333
Abstract: An apparatus system and method are provided for use in acquiring data from fluid within a region of material in a heap leaching application. The apparatus includes one or more sensor strings provided in a region of material to be analysed. Each sensor string includes a data cable and two or more solid-state sensors positioned along the length of the data cable. The sensors are adapted to periodically acquire sensor data relating to chemical properties of the fluid surrounding the sensor over a predetermined period of time and to transmit the sensor data via the data cable to one or more hubs.
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公开(公告)号:US20220200263A1
公开(公告)日:2022-06-23
申请号:US17606253
申请日:2020-04-24
Inventor: David MOLENAAR , Rueben RAJASINGAM , David MARCUSON , Craig BROADLY
Abstract: A short-circuit mitigation device for use in an electrolytic cell (101) is disclosed. The device comprises a switch (302) connected in parallel with a damping load (502). The switch is disposed between a contact (102) and an electrode (106) of the cell (101) to selectively provide an electrical conduction path between the contact and the electrode. The switch comprises a plurality of metal-oxide-semiconductor field-effect transistors (MOSFETs) (402) connected in parallel. The device further comprises a switch controller (306) operably associated with the switch (302) to monitor electric current (308) through the switch and to generate a toggle signal (309) to toggle the switch (302) from a conductive closed state to a non-conductive open state when the electric current exceeds a first threshold value.
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