A system for transferring a mineral fluid mixture

Abstract

The present disclosure relates to a system for transferring a mineral fluid mixture, the system comprising: a plurality of flow influencing devices for flushing a pipeline with flushing fluid and transferring the mineral fluid mixture through a pipeline; at least one sensor configured to assist in determining a state of the mineral fluid mixture in a pipeline; and a controller configured to receive information from the sensor, wherein the controller is configured to activate the plurality of flow influencing devices to flush the pipeline with flushing fluid; and wherein in response to the controller identifying a predetermined initiation state of the mineral fluid mixture based on the information received from the at least one sensor, the controller is configured to control the flow influencing devices to stop flushing the pipeline with flushing fluid and to initiate the transfer the mineral fluid mixture through the pipeline. Figure 1 20 24 22 01 16 26 S ep 2 02 4 A S Y S T E M F O R T R A N S F E R R I N G A M I N E R A L F L U I D M I X T U R E A B S T R A C T 2 0 2 4 2 2 0 1 1 6 2 6 2 0 2 4 S e p A S Y S T E M F O R T R A N S F E R R I N G A M I N E R A L F L U I D M I X T U R E A B S T R A C T 2 0 2 4 2 2 0 1 1 6 2 6 2 0 2 4 S e p S 9 2 3 S 9 2 5 S 9 2 6 S 9 2 7 S 1 2 2 S 1 2 4 S 1 2 1 S 1 2 3 6 1 0 8 1 0 2 5 0 2 1 0 3 3 0 3 4 0 3 1 0 3 2 0 1 1 0 0 2 0 0 4 0 0 1 1 0 1 2 0 2 2 0 2 3 0 2 4 0 3 0 0 2 0 2 1 7 0 0 s 9 0 0 9 1 0 6 0 0 9 2 0 S 9 2 4 9 1 0 S 9 2 3 6 0 0 9 2 0 S 9 2 6 S 9 2 7 7 0 0 S 9 2 1 8 1 0 8 2 0 8 2 0 8 0 0 F ig u re 1 1 / 1 6 1 0 9 0 0 8 0 0 1 0 S 9 2 1 S 9 2 2 S 1 2 5 7 0 1 s S 9 2 5 S 9 2 4 7 0 1 s S 9 2 2 20 24 22 01 16 2 6 Se p 20 24 Figure 1 008 200 010 400 230 210 002 220 O 310 340 701 o o S927 S925 O 330 S924 1 / 1 S922 S123 S124 S926 3M S926 S122 250 S921 010 010 820 009 920 110 S923 1100 S923 120 10 016 21 006 006 20 L 2024220116 26 Sep 2024 Figure 1 008 200 010 400 230 210 700 220 O 310 340 701 O O S927 S925 o * 1 / 1 330 S924 S922 S123 S124 S926 3M S926 S122 250 S921 010 010 820 009 920 110 S923 1100 S923 120 10 016 21 006 006 20 L 2024220116 26 Sep 2024

Description

TECHNICAL FIELD

[001] The present disclosure relates to a control system for transferring a mineral fluid mixture. In particular, the disclosure relates, but is not limited, to a control system for transferring a mineral fluid mixture over a long distance and management of tailings. BACKGROUND

[002] Any reference to or discussion of any document, act or item of knowledge in this specification is included solely for the purpose of providing a context for the present invention. It is not suggested or represented that any of these matters or any combination thereof formed at the priority date part of the common general knowledge, or was known to be relevant to an attempt to solve any problem with which this specification is concerned.

[003] Mining iron ore, including magnetite, has a long, traditional history. Iron ore plays a key part in our society but there are various challenges presented in mining, processing and transporting iron ore from remote and inaccessible mines where the ore is typically mined to ports for exportation or to facilities for processing. For transportation, ore may be mixed with fluid and other chemicals to form a slurry which is then pumped via a pipeline. However, transporting the slurry via a pipeline is a complex process.

[004] Firstly, the ore must be converted into a slurry. The slurry is then transported via a pipeline to a thickener for further processing. A flocculant is added to the slurry in the thickener to encourage the ore in the slurry to concentrate at the bottom of a thickener, which is then pushed out of the base of the thickener via a rake to another pipeline. A pump then pushes the concentrate slurry through the pipeline to a port so it can be shipped for further processing. For the slurry to be transported effectively, the particles must be maintained in suspension, a situation that necessitates turbulent flow in the pipeline. The settling of particles during transportation leads to stratified flow, which in turn can cause uneven and excessive wear in pipelines, and in extreme cases, cause a blockage in the pipeline due to solid build-up around fittings or inclined sections. To maintain a turbulent flow in the pipeline, the slurry is typically diluted with water to reduce the chance of a blockage occurring. A powerful pump may also be required to pump slurry through the pipeline. The pump requires large volumes of energy, particularly when slurries with high particle 2024220116   02 Jun 2026 concentration are pumped through the pipelines, due to the friction of the slurry within the pipe.

[005] The processing of iron ore also produces a by-product, tailings, which is considered a waste product. There are various ways to manage tailings, one option being to use a thickener to settle out suspended solids and return the clear water back to the system. In this regard, the operation of a thickener to process tailings is a complex and costly procedure. A flocculant is added to the tailings in the thickener to encourage the tailings to concentrate at the bottom of a thickener. A pump then pushes the concentrated tailings through a pipeline. Pushing the tailings slurry through a pipeline requires substantial amounts of power and various obstacles need to be overcome, including minimising the potential for tailings particles to settle and set in the pipeline after it is thickened. Furthermore, the use of flocculant as a thickening agent is expensive. Therefore, it is also important to manage the addition of the flocculant to the thickener, resulting in cost savings and more efficient chemical usage. SUMMARY OF THE INVENTION

[006] In one aspect, the present disclosure provides a system for transferring a mineral fluid mixture, the system comprising: a plurality of flow influencing devices for flushing a pipeline with flushing fluid and transferring the mineral fluid mixture through the pipeline; at least one sensor configured to assist in determining a state of the mineral fluid mixture in the pipeline; and a controller configured to receive information from the sensor, wherein the controller is configured to sequentially activate and / or deactivate the plurality of flow influencing devices to flush the pipeline with flushing fluid and reduce backflow of the mineral fluid mixture through the pipeline; and wherein in response to the controller identifying a predetermined initiation state of the mineral fluid mixture based on the information received from the at least one sensor, the controller is configured to control the flow influencing devices to stop flushing the pipeline with flushing fluid and to initiate the transfer of the mineral fluid mixture through the pipeline.

[007] The predetermined initiation state may be a flow rate of the mineral fluid mixture. In one example, the flow rate of the mineral fluid mixture may be at least approximately 2800 2024220116   02 Jun 2026 m3 / h. In an example, the mineral fluid mixture is associated with a concentrate slurry. In another example, the flow rate of the mineral fluid mixture may be at least approximately 6000 m3 / h. In an example, the mineral fluid mixture is associated with a tailings slurry.

[008] In another aspect, the present disclosure provides a system for transferring a mineral fluid mixture, the system comprising: a plurality of flow influencing devices for transferring the mineral fluid mixture through a pipeline; at least one sensor configured to assist in determining a state of the mineral fluid mixture in the pipeline; and a controller configured to receive information from the sensor, wherein in response to the controller identifying a predetermined optimal state of the mineral fluid mixture based on the information received from the at least one sensor, the controller is configured to control the plurality of flow influencing devices to maintain a continuous flow of the mineral fluid mixture through the pipeline; and wherein the controller is configured to control the plurality of flow influencing devices by sequentially activating and / or deactivating the plurality of flow influencing devices to reduce backflow of the mineral fluid mixture through the pipeline.

[009] The predetermined optimal state may be a flow rate of the mineral fluid mixture. In one example, the flow rate of the mineral fluid mixture may be approximately between 2500 m3 / h and 3500 m3 / h. In an example, the flow rate of the mineral fluid mixture may be approximately between 2800 m3 / h and 3400 m3 / h. In an example, the mineral fluid mixture is associated with a concentrate slurry. In another example, the flow rate of the mineral fluid mixture may be approximately between 6000 m3 / h and 9000 m3 / h. In a further example, the flow rate of the mineral fluid mixture may be at least approximately 3000 m3 / h. In an example, the mineral fluid mixture is associated with a tailings slurry.

[010] The predetermined optimal state may include a concentration of minerals in the mineral fluid mixture. In one example, the concentration of minerals in the mineral fluid mixture may be approximately 55% to 80%. In a further example, the concentration of minerals in the mineral fluid mixture may be approximately 65% to 75%. In another example, the concentration of minerals in the mineral fluid mixture may be approximately 60% to 80%. In a further example, the concentration of minerals in the mineral fluid mixture may be approximately 62% to 75%. In another example, the concentration of minerals in the mineral fluid mixture may be approximately 45% to 55%. In an embodiment, the 2024220116   02 Jun 2026 concentration of minerals in the mineral fluid mixture is associated with a concentrate slurry or a tailings slurry.

[011] The predetermined optimal state may include a density of the mineral fluid mixture. In one example, the density of the mineral fluid mixture may be approximately 1500 to 2500 kg / m3. In another example, the density of the mineral fluid mixture may be approximately 1200 to 1700 kg / m3. In a further example, the density of the mineral fluid mixture may be approximately 2050 kg / m3. In another example, the density of the mineral fluid mixture may be approximately 2060 to 2462 kg / m3. In a further example, the density of the mineral fluid mixture may be approximately 1418 to 1563 kg / m3. In an example, the density of the mineral fluid mixture may be associated with a concentrate slurry or a tailings slurry.

[012] In a further aspect, the present disclosure provides a system for transferring a mineral fluid mixture, the system comprising: a plurality of flow influencing devices in fluid communication with a pipeline; a controller configured to control the plurality of influencing devices, wherein the plurality of flow influencing devices includes at least four flow influencing device in series that are configured to pump the mineral fluid mixture at least five kilometres; and wherein the controller is configured to control the plurality of flow influencing devices by sequentially activating and / or deactivating the plurality of flow influencing devices to reduce backflow of the mineral fluid mixture through the pipeline.

[013] The controller may be configured to sequentially activate and / or deactivate the plurality of flow influencing devices.

[014] In one example, in response to minerals in the mineral fluid mixture being below approximately 10% in concentration, the controller may sequentially deactivate the plurality of flow influencing devices. In another example, in response to minerals in the mineral fluid mixture being below approximately 5% in concentration, the controller may sequentially deactivate the plurality of flow influencing devices.

[015] The plurality of flow influencing devices may be sequentially activated and / or deactivated to reduce backflow of the mineral fluid mixture through the pipeline. 2024220116   02 Jun 2026

[016] In another aspect, the present disclosure provides a system for transferring a mineral fluid mixture, the system comprising: a plurality of flow influencing devices; and a controller configured to control the plurality of flow influencing devices, wherein the controller is configured to sequentially activate and / or deactivate the plurality of flow influencing devices to reduce backflow of the mineral fluid mixture through the pipeline.

[017] In one example, in response to minerals in the mineral fluid mixture being below approximately 10% in concentration, the controller may sequentially deactivate the plurality 2024220116   26 Sep 2024 of flow influencing devices. In another example, in response to minerals in the mineral fluid mixture being below approximately 5% in concentration, the controller may sequentially deactivate the plurality of flow influencing devices.

[018] The plurality of flow influencing devices may be sequentially activated and / or deactivated to reduce backflow of the mineral fluid mixture through the pipeline.

[019] In one example, when the mineral fluid mixture discharge pressure is greater than or equal to 2800 kPa, the controller may be configured to reduce the speed of the plurality of flow influencing devices to decrease the discharge pressure. In another example, when the mineral fluid mixture discharge pressure is less than or equal to 1200 kPa, the controller may be configured to increase the speed of the plurality of flow influencing devices to increase the discharge pressure.

[020] The system may further include a storage tank for storing the mineral fluid mixture. When the mineral fluid mixture volume in the storage tank is less than or equal to 1950 m3, the controller may be configured sequentially deactivate the plurality of flow influencing devices to stop the transfer of the mineral fluid mixture.

[021] The mineral fluid mixture may be transferred in a batch-by-batch mode when the mineral fluid mixture flow rate is between 2800 m3 / h and 3200 m3 / h, the mineral fluid mixture density is between 1000 kg / m3 and 2400 kg / m3, or the mineral fluid mixture concentration is between 2 % and 70 %. In another example, the mineral fluid mixture is transferred in a batch-by-batch mode when the mineral fluid mixture flow rate is between 6000 m3 / h and 8000 m3 / h, the mineral fluid mixture density is between 1000 kg / m3 and 1600 kg / m3, or the mineral fluid mixture concentration is between 0 % and 70 %.

[022] The at least one thickening station may be positioned upstream or downstream of the plurality of flow influencing devices. The at least one thickening station may comprises: at least one sensor configured to assist in determining a state of at least one of an overflow or an underflow associated with the mineral fluid mixture being thickened in a thickening station; a controller configured to receive information from the sensor, wherein in response to the controller identifying a predetermined state based on the information from the sensor, the controller is configured to control at least one flow influencing device in order to change the nature of the underflow. 2024220116   26 Sep 2024

[023] The plurality of flow influencing devices may include a plurality of slurry pumps. The plurality of slurry pumps may be in series.

[024] The mineral fluid mixture may include magnetite and / or silicate minerals and / or flushing fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[025] Various preferred embodiments of the present disclosure will now be described, by way of examples only, with reference to the accompanying Figure, in which Figure 1 illustrates a schematic diagram of a system for transferring a mineral fluid mixture, according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF EMBODIMENTS

[026] Figure 1 illustrates a schematic diagram of a system 1 for transferring a mineral fluid mixture, preferably a mixture of magnetite and fluid. The system 1 includes a transfer station 10 and two thickening stations 20, 21.

[027] The transfer station 10 includes a control hub 100, a plurality of flow influencing devices 200, a plurality of valves 300 and a storage tank 400.

[028] The control hub 100 includes a controller 110. The controller 110 is in communication with one or more sensors 120. In this example, there are five sensors S121, S122, S123, S124, S125. Sensor S121 is in the form of a pressure / flow rate / density sensor. Sensor S121 is positioned downstream from the plurality of flow influencing devices 200 ie. at a discharge end of the flow influencing devices 200. Sensor S121 is in fluid communication with the pipeline. Sensor S121 is configured to measure the (discharge) pressure, flow rate and / or density of the mineral fluid mixture. Sensor S122 is in the form of a level sensor. Sensor S122 is in fluid communication with the storage tank 400. Sensor S122 is configured to measure the level of mineral fluid mixture in the storage tank 400.

[029] Sensor S123 is in the form of a pressure sensor. Sensor S123 is positioned upstream from the flow influencing devices 200 ie at a suction end of the flow influencing devices 200. Sensor S123 is in fluid communication with the pipeline. Sensor S123 is configured to measure the (suction / dynamic) pressure of the pipeline. Sensor S124 is in the form of a (flushing fluid) flow rate sensor. Sensor S124 is positioned downstream from the 2024220116   26 Sep 2024 flushing fluid pump 250 and valve 330. Sensor S124 is in fluid communication with flushing fluid pump 250. Sensor S124 is configured to measure the flow rate of the fluid being pumped from the flushing fluid pump 250. Sensor S125 is in the form of a flow rate / density sensor. Sensor S125 is positioned downstream from the pipeline and upstream from the storage tank 600 of the second thickening station 21 ie. at a discharge end of the pipeline after long distance transfer. Sensor S125 is in fluid communication with the pipeline. Sensor S125 is configured to measure the flow rate and / or density of the mineral fluid mixture at the discharge end of the pipeline after long distance transfer.

[030] The controller 110 is configured to receive information from the one or more sensors 120. Based on the information received, the controller is configured to control the plurality of flow influencing devices 200, a plurality of valves 300 and a storage tank 400.

[031] The plurality of flow influencing devices 200 includes at least four slurry pumps 210, 220, 230, 240, and a flushing fluid pump 250. In this example, the four slurry pumps 210, 220, 230, 240 are positioned in series, ie consecutively one after another. The four slurry pumps 210, 220, 230, 240 are positioned downstream from the storage tank 400 and the flushing fluid pump 250. The four slurry pumps 210, 220, 230, 240 are in communication with the controller 110. The controller 110 is configured to activate and / or deactivate the four slurry pumps 210, 220, 230, 240 sequentially to reduce backflow of mineral fluid mixture through the pipeline, to prevent blockages and to ensure efficient transfer. In particular, the four slurry pumps 210, 220, 230, 240 are configured to be activated sequentially one by one from the first pump to the last pump and / or deactivated sequentially one by one from the last pump to the first pump. In this case, the last pump is the pump 240 furthest from the storage tank 400 and the first pump is the closest pump 210 to the storage tank. In other examples, the slurry pumps 210, 220, 230, 240 may be activated in a different sequence and there may be more or less than four pumps. In one example, the four slurry pumps 210, 220, 230, 240 are configured to pump the mineral fluid mixture at least five kilometres. In another example, the four slurry pumps 210, 220, 230, 240 are configured to pump the mineral fluid mixture at least eight kilometres. In another example, the four slurry pumps 210, 220, 230, 240 are configured to pump the mineral fluid mixture at least thirty kilometres.

[032] The flushing fluid pump 250 is positioned downstream from the storage tank 400 and / or upstream from the four slurry pumps 210, 220, 230, 240. The flushing fluid pump 250 is positioned between valve 340 and valve 310. The flushing fluid pump 250 is in fluid communication with the pipeline. The flushing fluid pump 250 is in communication with the controller 110. The flushing fluid pump 250 is configured to flush the pipeline with fluid to 2024220116   26 Sep 2024 prevent any mineral fluid mixture from settling in the pipeline. In this example, the flushing fluid is in the form of water. In other examples, there may be additional flushing fluid pumps or other suitable fluid may be used.

[033] The controller 110 is configured receive the (suction / dynamic) pressure of the pipeline from sensor S123. Based on the (suction / dynamic) pressure received from sensor S123, the controller 110 is configured to control the four slurry pumps 210, 220, 230, 240 to flush or stop flushing the pipeline with flushing fluid. When the (suction / dynamic) pressure of the pipeline is greater than 50 kPa, the controller 110 is configured to activate the four slurry pumps 210, 220, 230, 240 to flush the pipeline with flushing fluid. When the (suction / dynamic) pressure of the pipeline is greater than 50 kPa and the flow rate of the mineral fluid mixture in the pipeline is greater than 3000 m3 / h (pipe diameter nominal: 800 mm), the controller 110 is configured to control the plurality of flow influencing devices to stop flushing the pipeline with flushing fluid and initiate the transfer of the mineral fluid mixture through the pipeline. In other examples, when the (suction / dynamic) pressure of the pipeline is greater than 75 kPa, the controller 110 is configured to activate the four slurry pumps 210, 220, 230, 240 to flush the pipeline with flushing fluid. When the (suction / dynamic) pressure of the pipeline is greater than 75 kPa and the flow rate of the mineral fluid mixture in the pipeline is greater than 5500 m3 / h (pipe diameter nominal: 1000 mm), the controller 110 is configured to control the four slurry pumps 210, 220, 230, 240 to stop flushing the pipeline with flushing fluid, and initiate the transfer of the mineral fluid mixture through the pipeline.

[034] The controller 110 is configured to maintain a continuous flow of the mineral fluid mixture through the pipeline. The controller 110 is configured to adjust the speed of the four slurry pumps 210, 220, 230, 240 based on parameters of the mineral fluid mixture. For example, if the flow rate of the mineral fluid mixture is greater than 3400 m3 / h (pipe diameter nominal: 800 mm), the controller 110 is configured to reduce the speed of the four slurry pumps 210, 220, 230, 240 to reduce the flow rate. In another example, if the flow rate of the mineral fluid mixture is less than 2800 m3 / h (pipe diameter nominal: 800 mm), the controller 110 is configured to increase the speed of the four slurry pumps 210, 220, 230, 240 to increase the flow rate. In a further example, if the flow rate of the mineral fluid mixture is greater than 9000 m3 / h (pipe diameter nominal: 1000 mm), the controller 110 is configured to reduce the speed of the four slurry pumps 210, 220, 230, 240 to reduce the flow rate. If the flow rate of the mineral fluid mixture is less than 6000 m3 / h (pipe diameter nominal: 1000 mm), the controller 110 is configured to increase the speed of the four slurry pumps 210, 220, 230, 240 to increase the flow rate. 2024220116   26 Sep 2024

[035] If the (discharge) pressure of the mineral fluid mixture at the discharge end of the flow influencing devices 200 (ie at sensor S121) is greater than 2800 kPa, the controller 110 is configured to reduce the speed of the four slurry pumps 210, 220, 230, 240 to reduce the (discharge) pressure. If the (discharge) pressure of the mineral fluid mixture at the discharge end of the flow influencing devices 200 (ie at sensor S121) is less than 1200 kPa, the controller 110 is configured to increase the speed of the four slurry pumps 210, 220, 230, 240 to increase the (discharge) pressure. In other examples, if the mineral fluid mixture (discharge) pressure at the discharge end of the flow influencing devices 200 (ie at sensor S121) is greater than 2400 kPa, the controller is configured to reduce the speed of the four slurry pumps 210, 220, 230, 240 to decrease the (discharge) pressure. If the mineral fluid mixture (discharge) pressure is less than 700 kPa at the discharge end of the flow influencing devices 200 (ie at sensor S121), the controller is configured to increase the speed of the four slurry pumps 210, 220, 230, 240 to increase the (discharge) pressure.

[036] The controller 110 is also configured to sequentially activate and / or deactivate the four slurry pumps 210, 220, 230, 240 to reduce backflow of the mineral fluid mixture through the pipeline. In other examples, to reduce backflow of the mineral fluid mixture through the pipeline and maintain a turbulent flow in the pipeline, the controller 110 is configured to close the valve 340 of storage tank 400 and to activate the flushing fluid pump 250 to flush the pipeline with flushing fluid. The flow rate of flushing fluid is controlled by the flushing fluid pump 250 and the four slurry pumps 210, 220, 230, 240.

[037] In other examples, when the mineral fluid mixture volume in the storage tank 400 is less than 1950 m3 and the flow rate of the flushing fluid being pumped from the flushing fluid pump 250 is more than 2000 m3 / h, the controller is configured to close the valve 340 of storage tank 400 and adjust the speed of the four slurry pumps 210, 220, 230, 240 to stop the transfer of the mineral fluid mixture and to start flushing the pipeline with flushing fluid. In another example, when the mineral fluid mixture volume in the storage tank 400 is less than 2670 m3 and the flow rate of the flushing fluid being pumped from the flushing fluid pump 250 is more than 4000 m3 / h, the controller is configured to close valve 340 of storage tank 400 and adjust the speed of the four slurry pumps 210, 220, 230, 240 to stop the transfer of the mineral fluid mixture and to start flushing the pipeline with flushing fluid.

[038] Ifthe minerals in the mineral fluid mixture is low in concentration, the controller 110 is configured sequentially deactivate the four slurry pumps 210, 220, 230, 240 to stop the transfer of the mineral fluid mixture. In one example, if the minerals in the mineral fluid mixture is below approximately 10% in concentration at the discharge end of the pipeline 2024220116   26 Sep 2024 after long distance transfer (ie at sensor S125), the controller 110 is configured to sequentially deactivate the four slurry pumps 210, 220, 230, 240 to stop the transfer of the mineral fluid mixture. In another example, if the minerals in the mineral fluid mixture is below approximately 5% in concentration at the discharge end of the pipeline after long distance transfer (ie at sensor S125), the controller 110 is configured to sequentially deactivate the four slurry pumps 210, 220, 230, 240 to stop the transfer of the mineral fluid mixture. In a further example, if the minerals in the mineral fluid mixture is below approximately 2% in concentration at the discharge end of the four slurry pumps 210, 220, 230, 240 (ie at sensor S121) and being below approximately 5% in concentration at the discharge end of pipeline after long-distance transfer (ie at sensor S125), the controller 110 is configured to sequentially deactivate the four slurry pumps 210, 220, 230, 240 to stop the transfer of the mineral fluid mixture. In a further example, in response to minerals in the mineral fluid mixture being below approximately 0% in concentration at the discharge end of the four slurry pumps 210, 220, 230, 240 (ie at sensor S121) and being below approximately 1% in concentration at the discharge end of pipeline after long-distance transfer (ie at sensor S125), the controller is configured to sequentially deactivate the four slurry pumps 210, 220, 230, 240 to stop the transfer of the mineral fluid mixture.

[039] The plurality of valves 300 includes at least four valves 310, 320, 330, 340. In this example, valve 310 is in the form of a control valve. Valve 310 is positioned upstream from the four slurry pumps 210, 220, 230, 240. Valve 310 is configured to control the suction / dynamic pressure of the pipeline by controlling flow rate of mineral fluid mixture that is drawn into the pipeline. Valve 320 is in the form of a discharge valve. Valve 320 is positioned downstream from the four slurry pumps 210, 220, 230, 240. Valve 320 is configured to control the flow rate of the mineral fluid mixture that is transferred through the pipeline. Valve 330 is in the form of a flush valve. Valve 330 is positioned downstream from the flushing fluid pump 250. Valve 330 is configured to control the flow rate of fluid from the flushing fluid pump 250 to the pipeline. Valve 340 is in the form of a storage tank valve. Valve 340 is positioned downstream from storage tank 400. Valve 340 is configured to control to the flow rate of the mineral fluid mixture from the storage tank 400 to the pipeline.

[040] The storage tank 400 is positioned upstream from the flow influencing devices 200. The storage tank 400 is configured to store the mineral fluid mixture received from the thickening station 20. The storage tank 400 is in communication with sensor S122. Sensor S122 is configured to determine a state of the mineral fluid mixture in a storage tank. In this example, sensor S122 is configured to determine the level and / or volume of mineral fluid mixture in the storage tank 400. 2024220116   26 Sep 2024

[041] In this example, the predetermined state of the level of mineral fluid mixture in the storage tank 400 is between 35% and 100%. If the level of mineral fluid mixture in the storage tank 400 is less than 35%, the controller 110 is configured to stop the flow of mineral fluid mixture from the storage tank 400 and activate the flushing fluid pump 250.

[042] In another example, the predetermined state of the level of mineral fluid mixture in the storage tank 400 is between 41.7% and 97.2%. If the level of mineral fluid mixture in the storage tank 400 is less than 41.7% and the flow rate of the flushing fluid being pumped from the flushing fluid pump 250 is more than 2000 m3 / h, the controller is configured to close valve 340 of storage tank 400 and adjust the speed of flushing fluid pump 250 and four slurry pumps 210, 220, 230, 240 to stop the transfer of the mineral fluid mixture and to start flushing the pipeline with flushing fluid. In a further example, the predetermined state of the level of mineral fluid mixture in the storage tank 400 is between 42.5% and 90%. If the level of mineral fluid mixture in the storage tank 400 is less than 42.5% and the flow rate of the flushing fluid being pumped from the flushing fluid pump 250 is more than 4000 m3 / h, the controller is configured to close valve 340 of storage tank 400 and adjust the speed of flushing fluid pump 250 and four slurry pumps 210, 220, 230, 240 to stop the transfer of the mineral fluid mixture and to start flushing the pipeline with flushing fluid.

[043] In this example, the system 1 includes at least two thickening stations 20, 21 for concentrating the mineral fluid mixture into mineral concentrate and / or recovering process flushing fluid from the mineral fluid mixture. Each thickening station 20, 21 includes a storage tank 600, a thickener 700, a plurality of flow control devices 800, and a control hub 900. One thickening station 20 is positioned at one end of the system 1. Another thickening station 21 is positioned at the other end of the system 1.

[044] The storage tank 600 is positioned upstream from the thickener 700. The storage tank 600 is configured to store the mineral fluid mixture. In this example, the mineral fluid mixture is in the form of a slurry. The storage tank 600 includes a valve 610. The valve 610 is in the form of a feed valve. Valve 610 is configured to allow the mineral fluid mixture to flow from the storage tank 600 to the thickener 700. Valve 610 is in communication with the controller 910.

[045] The thickener 700 is positioned downstream from the storage tank 600 and upstream from a slurry pump 810. The thickener 700 is configured to receive mineral fluid mixture from the storage tank 600. The thickener 700 is configured to separate suspended solids from the fluid in the mineral fluid mixture through the use of flocculants. In other examples, the 2024220116   26 Sep 2024 thickener 700 may include a moving device in the form of a rake 701 to push the separated solids through the base of the thickener 700 to be transported. In this example, the thickener 700 of the second thickening station 21 may be a deep cone thickener with a high torque and bed pressure settings, which has higher underflow density and is able to recover more process flushing fluid than the thickener in the first thickening station 20. A high density slurry is discharged to a tailings dam which allows a large beach angle to be built to advantageously save storage space.

[046] The plurality of flow control devices 800 includes a slurry pump 810 and a flocculant dosage device 820. The slurry pump 810 is positioned downstream from the thickener 700. The slurry pump 810 is configured to pump the mineral fluid mixture to the storage tank 400 of the transfer station 10. The flocculant dosage device 820 is in communication with the controller 910 and thickener 700. The flocculant dosage device 820 is configured to add flocculant to the thickener 700 based on the turbidity of the overflow measured by sensor S921.

[047] The control hub 900 includes a controller 910, and a plurality of sensors 920. The controller 910 is configured to receive information from the plurality of sensors 920. Based on the information received, the controller is configured to control the plurality of flow control devices 800, storage tank 600 and thickener 700. The plurality of sensors 920 includes at least seven sensors, S921, S922, S923, S924, S925, S926, S927. Sensor S921 is in the form of an overflow turbidity value sensor. Sensor S921 is positioned in the thickener 700. Sensor S921 is configured to measure the turbidity of the overflow from the thickener 700. The overflow is, for example, a substantially clear liquid / water that separates from a dense slurry in the thickening process. S922 is in the form of a bed pressure sensor. Sensor S922 is positioned in the thickener 700. Sensor S922 is configured to measure the bed pressure of the thickener 700.

[048] Sensor S923 is in the form of a mineral fluid mixture level sensor. Sensor S923 is positioned in the storage tank 600. Sensor S923 is configured to measure the level of mineral fluid mixture in the storage tank 600. Sensor S924 is in the form of a mineral fluid mixture level sensor. Sensor S924 is positioned in the thickener 700. Sensor S924 is configured to measure the level of mineral concentrate settled (bed level) in the thickener 700. The level of mineral concentrate settled in the thickener 700 is used to adjust the flow rate of the flocculant added to the thickener 700. S925 is in the form of a torque sensor. Sensor S925 is positioned in the thickener 700. Sensor S925 is configured to measure the torque of rake 701 in the thickener 700. Sensor S926 is in the form of a flowmeter. Sensor 2024220116   26 Sep 2024 S926 is positioned in the thickener 700 and in communication with the flocculant dosage device 820. Sensor S926 is configured to monitor the flow rate of flocculant from the flocculant dosage device 820 to the thickener 700. Sensor S927 is in the form of a discharge flow rate / density sensor. Sensor S927 is positioned downstream from slurry pump 810. Sensor S927 is configured to measure the discharge flow rate / density of the mineral fluid mixture in the pipeline. In particular, sensor S927 is configured to measure the flow rate of the underflow; and / or the density of the underflow.

[049] In this example, the controller 910 is configured to receive information from sensors S921, S922, S923, S924, S925, S926, S927 and identify a predetermined state based on the information received. In response to the controller 910 identifying a predetermined state, the controller 910 is configured to control at least one of the plurality of flow control devices 800 in order to change the nature of the underflow.

[050] In this example, sensors S921, S922, S923, S924, S925, S926, S927 detect information in relation to the overflow turbidity, bed pressure, the level of mineral fluid mixture in the storage tank 600, bed level, torque, and flow rate of flocculant. The detected information is utilised by the controller 910 to optimise the flocculant dosage, control overflow turbidity and safe operation of the thickeners and pipeline.

[051] In this example, the pipeline of the thickening stations 20,21 and the transfer station 10 is primarily for the transfer of concentrate slurry. The diameter of this pipeline is approximately 800 mm. The system 1 may include additional pipelines, for example, for the transfer of tailings slurry. The diameter of this pipeline would be approximately 1000 mm.

[052] To transfer a mineral fluid mixture, the controller 110 opens discharge valve 320 and control valve 310. The controller 110 then activates flushing fluid pump 250 and opens flush valve 330 to flush the pipeline with flushing fluid. In this example, the flushing fluid is in the form of water. Sensor S124 measures the flow rate of the flushing fluid being pumped from the flushing fluid pump 250 and sends the measurement to the controller 110. The controller 110 then sequentially activates the four slurry pumps 210, 220, 230, 240. The four slurry pumps 210, 220, 230, 240 are sequentially activated from the first slurry pump 210 to the last slurry pump 240. The controller 110 is configured to control the four slurry pumps 210, 220, 230, 240 to maintain the (suction) pressure at the suction end of the flow influencing devices 200 (ie at sensor S123) such that it is greater than 50 kPa, and maintain the (discharge) flow rate at the discharge end of the flow influencing devices 200 (ie at sensor S121) such that it is greater than 3000 m3 / h (pipe diameter nominal: 800 mm). 2024220116   26 Sep 2024

[053] In another example, to transfer the mineral fluid mixture, the controller 110 opens the control valve 310. The controller 110 then activates flushing fluid pump 250 and opens flush valve 330 to flush the pipeline with flushing fluid. The controller 110 then opens the discharge valve 320. When the (discharge) pressure at the discharge end of the flow influencing devices 200 (ie at sensor S121) is greater than 600 kPa, the controller 110 sequentially activates the four slurry pumps 210, 220, 230, 240. The four slurry pumps 210, 220, 230, 240 are sequentially activated from the first slurry pump 210 to the last slurry pump 240. The controller 110 is configured to control the four slurry pumps 210, 220, 230, 240 to maintain the (suction) pressure of the mineral fluid mixture the suction end of the flow influencing devices 200 (ie at sensor S123) such that it is greater than 75 kPa, and maintain the (discharge) flow rate at the discharge end of the flow influencing devices 200 (ie at sensor S121) such that it is greater than 5500 m3 / h (pipe diameter nominal: 1000 mm).

[054] While the pipeline is being flushed with flushing fluid, the storage tank 600 of the thickening station 20 is being filled with the mineral fluid mixture. Sensor S923 measures the level of the mineral fluid mixture in the storage tank 600 and sends the measurement to the controller 910. Once the level of the mineral fluid mixture in the storage tank 600 reaches a predetermined level, the controller 910 is configured to open feed valve 610 to allow the mineral fluid mixture to flow from the storage tank 600 to the thickener 700. In this example, the predetermined level of mineral fluid mixture in the storage tank 600 is above 10%.

[055] Once the mineral fluid mixture is in the thickener 700, sensor S921 begins measuring the turbidity of the overflow and sends the measurement to the controller 910. Once the turbidity of the overflow reaches a predetermined range, the controller 910 is configured to adjust the flocculant flow rate via the flocculant dosage device 820. In this example, the predetermined the turbidity of the overflow is between 0 to 200 ppm. Specifically, when the turbidity of the overflow is above 200 ppm, the flocculant dosage device 820 is configured to increase the flocculant flow rate. When the turbidity of the overflow is less than 100 ppm the flocculant dosage device 820 is configured to decrease the flocculant flow rate. In another example, the predetermined the turbidity of the overflow is between 0 to 300 ppm. Specifically, when the turbidity of the overflow is above 300 ppm the flocculant dosage device 820 is configured to increase the flocculant flow rate. When the turbidity of the overflow is less than 150 ppm the flocculant dosage device 820 is configured to decrease the flocculant flow rate.

[056] Meanwhile, sensor S922 measures the bed pressure of the thickener 700 and sends the measurement to the controller 910. Once the bed pressure of the thickener 700 is within 2024220116   26 Sep 2024 a predetermined range, the controller 910 is configured to activate a moving device within the thickener 700 to move the mineral fluid mixture. In this example, the moving device includes a rake 701. In further detail, the rake 701 is configured to encourage the mineral fluid mixture to pass through the base of the thickener 700. When the bed pressure of the thickener 700 is above 0% (as low as possible), the controller is configured to lower the rake 701 automatically. The rake 701 is then activated to encourage the mineral fluid mixture to pass through the base of the thickener 700. When the bed pressure of the thickener 700 is equal to ~0%, the rake is deactivated to save energy. In this example, the position of the rake 701 is adjusted based on the torque of the rake. For example, when the torque of the rake is above 30%, the controller 910 is configured to automatically adjust (raise) the rake to prevent damage to the blades of the rake and the rake drive system. When the torque of rake 701 is less than 27%, the controller is configured to adjust (lower) the position of the rake 701, if the rake 701 is not already at its lowest position (0).

[057] Slurry pump 810 is then activated to transfer, via a pipeline, the mineral fluid mixture to the storage tank 400 of the transfer station 10. Sensor S927 measures the discharge flowrate / density of the mineral fluid mixture in the pipeline from the thickening station 20 to the transfer station 10.

[058] While the storage tank 400 of the transfer station 10 is being filled with the mineral fluid mixture, sensor S124 measures the flow rate of the flushing fluid through the pipeline. Sensor S124 sends the measurement to the controller 110. Once the flow of the flushing fluid reaches a predetermined rate, the controller 110 is configured to open valve 340 to allow the mineral fluid mixture to flow from the storage tank 400 into the pipeline to commence the transfer process. In this example, the predetermined flow rate of the flushing fluid is 3000 m3 / h (pipe diameter nominal: 800 mm). In another example, the predetermined flow rate of the flushing fluid is 5500 m3 / h (pipe diameter nominal: 1000 mm). Sensor S122 measures the level of mineral fluid mixture in the storage tank 400. Sensor S122 sends the measurement to the controller 110.

[059] Once the transfer of the mineral fluid mixture has commenced and the flow rate of the mineral fluid mixture reaches the predetermined initiation state of approximately 2800 m3 / h, the controller 110 deactivates flushing fluid pump 250 and closes the flush valve 330 to stop flushing the pipeline with flushing fluid. The four slurry pumps 210, 220, 230, 240 then transition into a continuous mode. In this example, the continuous mode is where the mineral fluid mixture is transferred continuously. Sensors S121, S123 respectively measure the (discharge) pressure / flow rate / density of the mineral fluid mixture in the pipeline and the 2024220116   26 Sep 2024 (suction) pressure of the pipeline. The speed of the four slurry pumps 210, 220, 230, 240 is adjusted by the controller 110 to maintain the flow rate / pressure of the mineral fluid mixture in the pipeline within predetermined ranges of the continuous mode. In this example, the predetermined (discharge) pressure at S121 (the discharge end of the flow influencing devices 200) is between 1200 kPa and 2800 kPa. The predetermined flow rate of the mineral fluid mixture is between 2800 m3 / h and 3400 m3 / h (pipe diameter nominal: 800 mm). The predetermined (suction) pressure of the mineral fluid mixture in the pipeline at S123 (suction end of the flow influencing devices 200) is between 50 kPa and 1000 kPa. This pressure may represent the dynamic pressure of the mineral fluid mixture but, it would be appreciated, static pressure may form part of the pressure (to make up the total pressure). The (dynamic) pressure of the mineral fluid mixture may cause a suction effect. In another example, other parameters may be considered in the continuous mode. For example, the density and concentration of minerals in the mineral fluid mixture. The predetermined density of the mineral fluid mixture is between 1900 kg / m3 and 2500 kg / m3. The predetermined concentration of the minerals in the mineral fluid mixture is between 62% and 75%, preferably 70%. In another example, the predetermined (discharge) pressure at S121 (the discharge end of the flow influencing devices 200) is between 700 kPa and 2400 kPa. The predetermined flow rate of the mineral fluid mixture is between 6000 m3 / h and 9000 m3 / h (pipe diameter nominal: 1000 mm). The predetermined (suction) pressure of the mineral fluid mixture in the pipeline at S123 (the suction end of the flow influencing devices 200) is between 70 kPa and 2000 kPa. The predetermined density of the mineral fluid mixture is between 1418 kg / m3 and 1563 kg / m3. The predetermined concentration of the minerals in the mineral fluid mixture is between 45% and 55%, preferably 50%.

[060] In other examples, the mineral fluid mixture may be transferred in a batch-by-batch mode. In particular, the mineral fluid mixture may be transferred in a batch-by-batch mode when the mineral fluid mixture flow rate at the discharge end of the flow influencing devices 200 is between 2800 m3 / h and 3200 m3 / h, the mineral fluid mixture density at the discharge end of the flow influencing devices 200 is between 1000 kg / m3 and 2400 kg / m3, or the mineral fluid mixture concentration is between 2 % and 70 %. In another example, the mineral fluid mixture may be transferred in a batch-by-batch mode when the mineral fluid mixture flow rate at the discharge end of the flow influencing devices 200 is between 6000 m3 / h and 8000 m3 / h (pipe diameter nominal: 1000 mm), the mineral fluid mixture density at the discharge end of the flow influencing devices 200 is between 1000 kg / m3 and 1487 kg / m3, and the mineral fluid mixture concentration at the discharge end of the flow influencing devices 200 is between 0 % and 50%. 2024220116   26 Sep 2024

[061] The mineral fluid mixture is then transferred, via the pipeline, over a long distance to storage tank 600 of the second thickening station 21. In this example, the four slurry pumps 210, 220, 230, 240 are configured to transfer the mineral fluid mixture at least five kilometres.

[062] A similar process as discussed above for the first thickening station 20 is then followed to thicken the mineral fluid mixture in the second thickening station 21. The discharge density of concentrated slurry from the first thickening station 20 and the second thickening station 21 thickener is 65% to 75% and 68% to 78%, respectively. In another example, the discharge density of concentrated slurry from the first thickening station 20 and the second thickening station 21 thickener is 45% to 55% and 60% to 63%, respectively. If the second thickening station 21 is a deep cone thickener, the discharge density of concentrate slurry is up to ~ 70%.

[063] To stop the transfer of the mineral fluid mixture, the controller 110 is configured to close the discharge valve 340 of storage tank 400. The controller 110 then activates the flushing fluid pump 250 to flush the pipeline with flushing fluid. The flow rate of the flushing fluid is adjusted by adjusting the speed of the flushing fluid pump 250 and the four slurry pumps 210, 220, 230, 240. In one example, the transfer of the mineral fluid mixture is stopped if the minerals in the mineral fluid mixture is below approximately 2% in concentration at the discharge end of the four slurry pumps 210, 220, 230, 240 and below approximately 5% in concentration at the discharge end of pipeline after long-distance transfer. In another example, the transfer of the mineral fluid mixture is stopped if the minerals in the mineral fluid mixture is below approximately 0% in concentration at the discharge end of the four slurry pumps 210, 220, 230, 240 and below approximately 1% in concentration at the discharge end of pipeline after long-distance transfer. The controller 110 gradually reduces the speed of the four slurry pumps 210, 220, 230, 240. The controller 110 then sequentially stops the pumps 210, 220, 230, 240 one by one from the last slurry pump 240 to the first slurry pump 210. The controller 110 closes valve 330 to stop flushing the pipeline with flushing fluid, deactivates the flushing fluid pump 250, and closes the suction valve 310 and discharge valve 320.

[064] It should also be appreciated by the skilled person in the art that at least one of the described embodiments may provide one or more of the following advantages: • an improved system and method for long-distance transfer of a mineral slurry. • an improved system and method for thickening tailings. 2024220116   26 Sep 2024

[065] The use of two thickening stations 20, 21 and subsequently a two stage thickening process allows quicker process water recovery after the first stage thickening at the first thickening station 20 and less slurry transfer to the tailings processing facility.

[066] The sequential activation and deactivation of the four slurry pumps 210, 220, 230, 240 ensures the pressure at the suction end of the pump series is higher than the discharge end of the pump series. This advantageously prevents fluid and / or slurry from flowing back into the slurry pumps 210, 220, 230, 240 which will cause backward rotation of the pump and cause damage to the pumps.

[067] Thickening the mineral fluid mixture prior to transportation results in a slurry with a higher density and advantageously results in a reduced volume to be transferred. This ultimately leading to a more efficient and time-saving dewatering process, particularly during the transformation of the slurry into filter cake. In addition, the two stage thickening also allows process water recovery quicker after the first stage thickening and less slurry transfer to the tailings processing facility.

[068] It will also be appreciated that flushing the pipeline before and after mineral fluid concrete has been transferred prevents mineral particles from settling and ensures a clear pathway for subsequent batches.

[069] Monitoring and controlling the parameters of the mineral fluid mixture effectively prevents blockages and ensures efficient transfer by minimising mineral particles from settling within the pipeline.

[070] Furthermore, it will be appreciated that the use of slurry pumps in series advantageously provides more head to meet system demands for long-distance transfer of high-density, fine magnetite concentrate slurries at a higher flow rate which prevents magnetite particles from settling in the pipeline.

[071] In this specification, the terms ‘comprises’, ‘comprising’, ‘includes’, ‘including’, or similar terms are intended to mean a non-exclusive inclusion, such that a method, system or apparatus that comprises a list of elements does not include those elements solely, but may well include other elements not listed.

[072] In this specification, the term underflow is to be understood as the thickened mineral rich solids of the mineral concentrate or tailings. As indicated above, the term overflow is to 2024220116   26 Sep 2024 be understood as, for instance, the substantially mineral free liquid by product of the thickening process of the mineral concentrate or tailings.

[073] In this specification, the percentage of the bed pressure of the thickener is relative to a maximum pressure of the bed height. The pressure of the bed height is measured by a pressure transducer / transmitter and is displayed as a figure between 0% and 100%. Bed pressure is equal to the height from the bottom of the discharge point to the water level, multiplied by the specific gravity of the thickened material and liquid.

[074] In this specification, the percentage of the torque of the moving device refers to, for instance, the relative pressure of the hydraulic fluid being used to drive the hydraulic motors of the moving device. The pressure of the hydraulic fluid is measured by a pressure transmitter installed in the hydraulic system of the moving device.

[075] In this specification, the percentage of level of mineral fluid mixture in the storage tank relates to the height of mineral concentrate in the distribution station. At 0% the distribution station is empty. At 100% the distribution station is full.

[076] In this specification, the percentage of concentration of minerals in the mineral fluid mixture relates to the percentage of mineral concentrate in the mineral fluid mixture.

[077] In this specification, the percentage of discharge density of concentrated slurry from the thickening station relates to the mass percentage of solids in the slurry.

[078] The above description relating to embodiments of the present disclosure is provided for purposes of description to one of ordinary skill in the related art. It is not intended to be exhaustive or to limit the disclosure to a single disclosed embodiment. As mentioned above, numerous alternatives and variations to the present disclosure will be apparent to those skilled in the art from the above teaching. Accordingly, while some alternative embodiments have been discussed specifically, other embodiments will be apparent or relatively easily developed by those of ordinary skill in the art. The present disclosure is intended to embrace all modifications, alternatives, and variations that have been discussed herein, and other embodiments that fall within the spirit and scope of the above description. 2024220116   26 Sep 2024 REFERENCE TABLE Feature Reference No. System 1 Transfer station 10 Thickening station 20 Thickening station 21 Control hub 100 Controller 110 One or more sensors 120 Sensor S121 Sensor S122 Sensor S123 Sensor S124 Sensor S125 Plurality of flow influencing devices 200 Slurry pump 210 Slurry pump 220 Slurry pump 230 Slurry pump 240 Flushing fluid pump 250 Plurality of valves 300 Control valve 310 Discharge valve 320 Flush valve 330 Storage tank valve 340 Storage tank 400 2024220116   26 Sep 2024 Storage tank 600 Feed valve 610 Thickener 700 Plurality of flow influencing devices 800 Slurry pump 810 Flocculant dosage device 820 Control hub 900 Controller 910 One or more sensors 920 Sensor S921 Sensor S922 Sensor S923 Sensor S924 Sensor S925 Sensor S926 Sensor S927

Claims

1. A system for transferring a mineral fluid mixture, the system comprising:a plurality of flow influencing devices for flushing a pipeline with flushing fluid and transferring the mineral fluid mixture through the pipeline;at least one sensor configured to assist in determining a state of the mineral fluid mixture in the pipeline; anda controller configured to receive information from the sensor,wherein the controller is configured to sequentially activate and / or deactivate the plurality of flow influencing devices to flush the pipeline with flushing fluid and reduce backflow of the mineral fluid mixture through the pipeline; andwherein in response to the controller identifying a predetermined initiation state of the mineral fluid mixture based on the information received from the at least one sensor, the controller is configured to control the flow influencing devices to stop flushing the pipeline with flushing fluid and to initiate the transfer of the mineral fluid mixture through the pipeline.

2. The system of claim 1, wherein the predetermined initiation state is a flow rate of the mineral fluid mixture being at least approximately 2800 m3 / h.

3. The system of claim 1, wherein the predetermined initiation state is a flow rate of the mineral fluid mixture being at least approximately 6000 m3 / h.

4. A system for transferring a mineral fluid mixture, the system comprising:a plurality of flow influencing devices for transferring the mineral fluid mixture through a pipeline;at least one sensor configured to assist in determining a state of the mineral fluid mixture in the pipeline; anda controller configured to receive information from the sensor,wherein in response to the controller identifying a predetermined optimal state of the mineral fluid mixture based on the information received from the at least one2024220116   02 Jun 2026sensor, the controller is configured to control the plurality of flow influencing devices to maintain a continuous flow of the mineral fluid mixture through the pipeline; andwherein the controller is configured to control the plurality of flow influencing devices by sequentially activating and / or deactivating the plurality of flow influencing devices to reduce backflow of the mineral fluid mixture through the pipeline.

5. The system of claim 4, wherein the predetermined optimal state includes:i) a flow rate of the mineral fluid mixture being approximately between 2500 m3 / h and 3500 m3 / h;ii) a flow rate of the mineral fluid mixture being approximately between 6000 m3 / h and 9000 m3 / h;iii)   a density of the mineral fluid mixture being approximately 1500 to 2500 kg / m3;iv)   a density of the mineral fluid mixture being approximately 1200 to 1700 kg / m3;v)    a density of the mineral fluid mixture being approximately 2050 kg / m3; orvi)   a concentration of minerals in the mineral fluid mixture being approximately 60%to 80%.

6. The system of claim 4, wherein the predetermined optimal state includes a flow rate of the mineral fluid mixture being at least approximately 3000 m3 / h.

7. The system of claims 4 or 6, wherein the predetermined optimal state includes a concentration of minerals in the mineral fluid mixture being approximately 55% to 80%.

8. The system of claims 4 or 6, wherein the predetermined optimal state includes a concentration of minerals in the mineral fluid mixture being approximately 62% to 75%.

9. A system for transferring a mineral fluid mixture, the system comprising:a plurality of flow influencing devices in fluid communication with a pipeline;a controller configured to control the plurality of influencing devices, wherein the plurality of flow influencing devices includes at least four flow influencing device in2024220116   02 Jun 2026series that are configured to pump the mineral fluid mixture at least five kilometres; andwherein the controller is configured to control the plurality of flow influencing devices by sequentially activating and / or deactivating the plurality of flow influencing devices to reduce backflow of the mineral fluid mixture through the pipeline.

10. A system for transferring a mineral fluid mixture, the system comprising:a plurality of flow influencing devices; anda controller configured to control the plurality of flow influencing devices,wherein the controller is configured to sequentially activate and / or deactivate the plurality of flow influencing devices to reduce backflow of the mineral fluid mixture through the pipeline.

11. The system of any one of the preceding claims, wherein when the mineral fluid mixture discharge pressure is greater than or equal to 2800 kPa, the controller is configured to reduce the speed of the plurality of flow influencing devices to decrease the discharge pressure.

12. The system of any one of the preceding claims, wherein the system further includes astorage tank for storing the mineral fluid mixture.

13. The system of any one of the preceding claims, wherein the mineral fluid mixture istransferred in a batch-by-batch mode when the mineral fluid mixture flow rate is between 2800 m3 / h and 3200 m3 / h, the mineral fluid mixture density is between 1000 kg / m3 and 2400 kg / m3, or the mineral fluid mixture concentration is between 2 % and 70 %.

14. The system of any one of the preceding claims, wherein the mineral fluid mixture istransferred in a batch-by-batch mode when the mineral fluid mixture flow rate is between 6000 m3 / h and 8000 m3 / h, the mineral fluid mixture density is between 1000 kg / m3 and 1600 kg / m3, or the mineral fluid mixture concentration is between 2 % and 70 %.

15. The system of any one of the preceding claims, wherein at least one thickening stationis positioned upstream or downstream of the plurality of flow influencing devices.2024220116   02 Jun 202616.  The system of claim 15, wherein the at least one thickening station comprises:at least one sensor configured to assist in determining a state of at least one of an overflow or an underflow associated with the mineral fluid mixture being thickened in a thickening station;a controller configured to receive information from the sensor,wherein in response to the controller identifying a predetermined state based on the information from the sensor, the controller is configured to control at least one flow influencing device in order to change the nature of the underflow.

17. The system of any one of the preceding claims, wherein:the plurality of flow influencing devices includes a plurality of slurry pumps, preferably the plurality of slurry pumps are in series;when the mineral fluid mixture discharge pressure is less than or equal to 1200 kPa, the controller is configured to increase the speed of the plurality of flow influencing devices to increase the discharge pressure, preferably when the mineral fluid mixture volume in the storage tank is less than or equal to 1950 m3, the controller is configured sequentially deactivate the plurality of flow influencing devices to stop the transfer of the mineral fluid mixture;in response to minerals in the mineral fluid mixture being below approximately 10% in concentration, the controller sequentially deactivates the plurality of flow influencing devices; orin response to minerals in the mineral fluid mixture being below approximately 5% in concentration, the controller sequentially deactivates the plurality of flow influencing devices.

18. The system of any one of the preceding claims, wherein the mineral fluid mixtureincludes magnetite and / or silicate minerals and / or flushing fluid.

Images