Systems and methods for monitoring metal recovery systems

Patent metadata

Field	Value
Publication number	US-11639539-B2
Application number	US-202217733171-A
Country	US
Kind code	B2
Filing date	Apr 29, 2022
Priority date	Dec 29, 2014
Publication date	May 2, 2023
Grant date	May 2, 2023

Abstract

Various embodiments provide a leaching solution monitoring module comprising a first leaching solution distribution system interface, a flow meter in fluid communication with the first leaching solution distribution system interface, the flow meter in fluid communication a 3-way pressure regulator, and a second leaching solution distribution system interface in fluid communication with the 3-way pressure regulator.

First claim

What is claimed is:

1. A method for identifying plugging of an orifice of a metal recovery system comprising:
passing a leaching solution to a metal-bearing material through a leaching solution system, the leaching solution system comprising:
a monitoring module, which includes:
a first leaching solution distribution system interface;
a flow meter in fluid communication with the first leaching solution distribution system interface;
a 3-way pressure regulator comprising a 3-way valve in communication with the flow meter;
a second leaching solution distribution system interface in fluid communication with the 3-way pressure regulator; and
a leaching solution distribution system comprising a primary pipe and a branch coupled to the primary pipe through the first and second leaching solution distribution system interfaces, thereby allowing the leaching solution to be distributed back to the primary pipe through the second leaching solution distribution system interface, wherein the branch comprises the orifice;

measuring, by the flow meter, at least one of a flow rate and a pressure of the leaching solution; and
detecting, by a monitoring system, a flow change indicative of a plugged condition of the orifice via data of the at least one of the flow rate and the pressure.

2. The method of claim 1 , wherein the monitoring system comprises a transmitter configured to transmit the data of the at least one of the flow rate and the pressure.

3. The method of claim 1 , wherein the monitoring system comprises a gateway configured to receive and transmit the data of the at least one of the flow rate and the pressure.

4. The method of claim 1 , wherein the monitoring system comprises a processor configured to receive and process the data of the at least one of the flow rate and the pressure.

5. The method of claim 1 , wherein the monitoring system is a centralized monitoring system.

6. The method of claim 1 , wherein the 3-way pressure regulator comprises a pressure adjustment control feature.

7. The method of claim 1 , wherein the 3-way pressure regulator comprises a pressure sustaining valve.

8. The method of claim 1 , wherein the flow meter is a differential pressure flow meter.

9. The method of claim 1 , wherein the monitoring system comprises a pressure transmitter configured to transmit data of the pressure of the leaching solution to the monitoring system.

10. The method of claim 1 , wherein the detecting comprises:
transmitting, by a transmitter, the data of the at least one of the flow rate and the pressure to a gateway;
transmitting, by the gateway, the data of the at least one of the flow rate and the pressure to a processor;
processing, by the processor, the data of the at least one of the flow rate and the pressure; and
determining the flow change indicative of the plugged condition of the orifice via the processing.

11. The method of claim 1 , wherein the monitoring system comprises two transmitters, a first transmitter and a second transmitter, wherein the second transmitter is configured to function as a repeater to receive and transmit data of at least one of the flow rate and the pressure from the first transmitter.

12. The method of claim 1 , wherein the monitoring system comprises a gateway, and a data network, wherein the data network is coupled to the gateway and a processor is configured to communicate with the gateway via the data network.

13. The method of claim 1 , wherein the monitoring system comprises a transmitter, and a gateway, wherein the transmitter is configured to transmit the data of the at least one of the flow rate and the pressure to the gateway, wherein the gateway is configured to transmit the data of the at least one of the flow rate and the pressure to a processor, wherein the processor is configured to process the data of the at least one of the flow rate and the pressure to determine the flow change indicative of the plugged condition of the orifice.

14. The method of claim 1 , wherein the flow meter transmits the data of the at least one of the flow rate and the pressure to the monitoring system.

15. The method of claim 3 , wherein the gateway communicates with the monitoring module via a Highway Addressable Remote Transducer protocol.

16. A method for monitoring a metal recovery system comprising:
passing a leaching solution to a metal-bearing material at a first pressure and a first flow rate through a leaching solution system, the leaching solution system comprising:
a monitoring module, which includes:
a first leaching solution distribution system interface;
a flow meter in fluid communication with the first leaching solution distribution system interface;
a 3-way pressure regulator comprising a 3-way valve in communication with the flow meter;
a second leaching solution distribution system interface in fluid communication with the 3-way pressure regulator; and
a leaching solution distribution system connected to the first and second leaching solution distribution system interfaces, thereby allowing the leaching solution to be distributed back to the leaching solution distribution system through the second leaching solution distribution system interface;

measuring, by the flow meter, at least one of a flow rate and a pressure of the leaching solution; and
detecting, by a monitoring system, at least one of an abnormal flow rate and a low flow rate of the leaching solution via data of the at least one of the flow rate and the pressure, wherein the monitoring system comprises a processor configured to receive and process the data of the at least one of the flow rate and the pressure; and
transmitting, by the processor, an alert in response to receiving data indicative of at least one of the abnormal flow rate and the low flow rate.

17. The method of claim 16 , wherein the alert comprises at least one of an SMS message and an email.

18. The method of claim 16 , wherein the monitoring system is a centralized monitoring system.

19. The method of claim 16 , wherein the detecting comprises:
transmitting, by a transmitter, the data of the at least one of the flow rate and the pressure to a gateway;
transmitting, by the gateway, the data of the at least one of the flow rate and the pressure to the processor;
processing, by the processor, the data of the at least one of the flow rate and the pressure; and
determining the at least one of the abnormal flow rate and the low flow rate of the leaching solution via the processing.

20. The method of claim 16 , wherein the method further comprises adjusting the at least one of the flow rate and the pressure of the leaching solution through the leaching solution distribution system.

Assignees

• Freeport Minerals Corp

Inventors

• Dean Jr John Warren
• Wooten Christopher
• Zenner Chase

Classifications

• C22B3/04 Primary

  by leaching (C22B3/18 takes precedence) · CPC title

• G05D16/101

  the controller being arranged as a multiple-way valve · CPC title

• C22B15/0065

  Leaching or slurrying (with organic compounds C22B3/16) · CPC title

• C22B3/44

  by chemical processes (treatment or purification of solutions by liquid-liquid extraction C22B3/26, by ion-exchange extraction C22B3/42) · CPC title

• C22B3/02

  Apparatus therefor · CPC title