Sulfate system nickel-cobalt salt extraction production system and process

Abstract

The invention discloses a sulfate system nickel cobalt salt extraction production system and process, and relates to the technical field of extraction separation, the sulfate system nickel cobalt salt extraction production system comprises a centrifugal extraction membrane separation assembly, and the bottom of the centrifugal extraction membrane separation assembly is fixedly connected with a sealing frame body. According to the method, ultrasonic waves are generated, so that the generated ultrasonic waves are located at the two ends of the interior of a low-temperature mixer to form opposite impact, efficient extraction and purification of nickel-cobalt salt are achieved through overall multi-stage treatment, the extraction efficiency and purity are improved, and under cooperation of a centrifugal extraction membrane separation assembly, a first bearing rotary column is driven by a control energy-saving motor to rotate; the centrifugal micro-bubble generation stirring rod is driven to rotate at a high speed to generate a large number of micro-bubbles, the mixing uniformity and mass transfer efficiency of materials are improved, the second bearing rotary column is driven by the control energy-saving motor to rotate, the membrane separation structure is driven to rotate at a high speed, efficient membrane separation is achieved, and the purity and recovery rate of the materials are improved.

Description

Technical Field

[0001] The invention relates to the technical field of extraction and separation, and in particular to a sulfate system nickel-cobalt salt extraction production system and process. Background Art

[0002] When cobalt concentrate and cobalt intermediates are used as raw materials to produce cobalt salts (sulfate system), cobalt and impurities such as nickel and magnesium are separated by P507 extraction. The raffinate wastewater mainly contains valuable metals such as nickel (500-2000mg / L) and a small amount of cobalt (1-50mg / L); sodium content of 50000-60000mg / L and magnesium content of 2000-8000mg / L are high-salt wastewater; it also contains a small amount of oil. The traditional process uses step-by-step precipitation, and the heavy metal ions in the treated wastewater still exceed the standard, which can no longer meet the increasingly severe environmental protection situation. In addition, the nickel-cobalt-magnesium slag produced by precipitation is a hazardous waste with high treatment costs.

[0003] However, in the prior art, during the extraction and production of nickel-cobalt salts in a sulfate system, the conventional step-by-step precipitation method cannot effectively remove the heavy metal particles contained inside, resulting in the inability to achieve the required purity and collection volume during the overall extraction, leading to reduced extraction efficiency. Therefore, it is necessary to propose a sulfate system nickel-cobalt salt extraction production system and process. Summary of the invention

[0004] The purpose of the present invention is to provide a sulfate system nickel-cobalt salt extraction production system and process, so as to solve the problem proposed in the above background technology that during the sulfate system nickel-cobalt salt extraction production operation, the conventional step-by-step precipitation method cannot effectively remove the heavy metal particles contained inside, resulting in the overall extraction being unable to achieve the required purity and collection amount, resulting in reduced extraction efficiency.

[0005] To achieve the above object, the present invention provides the following technical solution: a sulfate system nickel-cobalt salt extraction production system, comprising a centrifugal extraction membrane separation component, the bottom of the centrifugal extraction membrane separation component is tightly connected to a sealing frame, a supercritical carbon dioxide extractor is installed on the side of the centrifugal extraction membrane separation component, the bottom of the sealing frame is tightly connected to a frame, and an ion extraction purification component is installed inside the frame; The ion extraction purification component includes a fluid collection pipeline, the bottom end of the fluid collection pipeline is connected to a high-pressure tank, two groups of electric iris valves are installed inside the high-pressure tank, the top and bottom of the outer surface of the high-pressure tank are respectively connected to a first output pump tube and a second output pump tube, the two groups of electric iris valves are respectively located at the bottom of the connecting end of the first output pump tube and the second output pump tube, the side end of the first output pump tube is connected to a connecting pipe, the bottom of the connecting pipe is connected to a classified ion liquid injection tank, the bottom end of the classified ion liquid injection tank is connected to a Ph detection regulator, the bottom of the Ph detection regulator is connected to a two-way conduit, the bottom of the two-way conduit is connected to a low-temperature mixer, the Ph detection regulator and the classified ion liquid injection tank are separately connected through the two-way conduit and the low-temperature mixer, an ultrasonic generator and an ultrasonic transmission tube are respectively installed on the left and right ends of the top of the low-temperature mixer, and a spiral plate heat exchanger is connected to the top surface of the low-temperature mixer through a pipeline.

[0006] Preferably, a microbial processor is installed at the side end of the second output pump tube, the side end of the microbial processor is connected with a fluid pressure tube, the bottom end of the fluid pressure tube is connected with a low-temperature mixer, the side end of the microbial processor is connected with a metering addition tube, the side end of the metering addition tube is connected with a catalytic tank, the side end of the catalytic tank is connected with a discharge valve tube, the side end of the discharge valve tube is connected with an extraction reaction tank, the top side end of the low-temperature mixer is connected with a pumping flow control guide tube, the side end of the pumping flow control guide tube is connected with the surface of the extraction reaction tank, and the side end surfaces of the extraction reaction tank are respectively connected with a discharge valve tube and a waste liquid valve tube.

[0007] Preferably, the centrifugal extraction membrane separation component includes a centrifugal casing, which is installed on the top of the sealing frame, and energy-saving control motors are installed on both left and right ends of the top of the centrifugal casing, and the top output end of the energy-saving control motor is connected to a pulley structure.

[0008] Preferably, the pulley structure is arranged in two groups, the inner side end of one group of pulley structures is connected to a first bearing column, and the inner side end of the other group of pulley structures is connected to a second bearing column, the second bearing column is located inside the first bearing column to form an inner and outer column structure, and the outside of the first bearing column is fastened with a centrifugal microbubble generating stirring rod.

[0009] Preferably, the bottom of the centrifugal microbubble generating stirring rod is rotatably connected to a rotating ring frame, the bottom sleeve of the second bearing rotating column is connected to a membrane separation structure, a limiting transfer track frame is installed on the outer circumference of the membrane separation structure, a transfer track frame is provided on the side surface, and the membrane separation structure is located inside the transfer track frame and is rotatably connected.

[0010] Preferably, a placement frame is installed inside the sealing frame, and the limiting transfer groove frame is located at the internal installation of the sealing frame. Several groups of microreactors are placed inside the placement frame, and the bottom ends of the several groups of microreactors are connected to fluid detection and discharge ends, and the bottom ends of the fluid detection and discharge ends are connected to the top of the fluid collection pipeline.

[0011] Preferably, a bearing bracket is fastened to the top of the centrifugal housing, and the bearing bracket is used to respectively connect and set the tops of the second bearing rotating column and the first bearing rotating column.

[0012] Preferably, an injection port is provided at the top of the centrifugal housing, and a PLC controller is installed on the bottom side of the frame.

[0013] Preferably, the PLC controller is used to perform signal connection control on the high-pressure tank, the classified ion liquid injection tank, the Ph detection regulator, the low-temperature mixer, the microbial processor, the extraction reaction tank and the control energy-saving motor.

[0014] A process for a sulfate system nickel-cobalt salt extraction production system comprises the following steps: S1. First, the material to be extracted is allowed to enter from the injection end, and the PLC controller is used to start the energy-saving motor, and then the energy-saving motor is used to drive the first bearing rotating column and the second bearing rotating column in the centrifugal extraction membrane separation component to rotate in different directions through two sets of pulley structures; S2. Then, after centrifugal reaction, the material is sequentially processed by the membrane separation structure and several groups of microreactors, and then enters the ion extraction purification component from the fluid collection pipeline; S3. Secondly, the material is subjected to secondary extraction reaction in the ion extraction purification component, and the pH value, pressure and type of ionic liquid are automatically adjusted according to the extraction reaction, and the high-pressure tank, low-temperature mixer, ultrasonic generator and microbial processor are simultaneously used to further improve the extraction efficiency and purity; S4. Afterwards, after the final extraction reaction in the extraction reaction tank, the extracted material is discharged through the drain valve pipe, and the generated waste is discharged from the waste valve pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the material is fed into the high-pressure tank with the cooperation of the ion extraction and purification component, and two sets of electric iris valves are installed inside the high-pressure tank, which are respectively located at the bottom of the connection end of the first output pump tube and the second output pump tube to control the flow direction of the material. The high-pressure tank is used to form a high-pressure environment to ensure the smooth progress of subsequent material processing. Secondly, the first output pump tube is used to feed the material into the connecting pipe, and the second output pump tube is used to feed the material into the microbial processor. After that, the connecting pipe feeds the material into the classified ion liquid injection tank, so that the classified ion liquid injection tank is injected with specific ion liquid according to the operation requirements to improve the purity of nickel-cobalt salt, and with the cooperation of the two-way catheter, the Ph detection regulator is used to synchronously detect and regulate the transported material. The pH value in the material is determined to ensure the purity of the nickel-cobalt salt. The material is then transported from the bidirectional conduit to the low-temperature mixer, where the material is mixed in a low-temperature environment to improve the extraction efficiency. The ultrasonic generator and the ultrasonic transmission tube cooperate to generate ultrasonic waves, which are transmitted to the other end of the low-temperature mixer through the ultrasonic transmission tube, so that the generated ultrasonic waves are located at both ends of the low-temperature mixer to form opposite impacts, and the impact of the ultrasonic waves is used to promote the mixing and mass transfer of the materials. The spiral plate heat exchanger is connected to the low-temperature mixer through a pipeline to ensure the low-temperature environment of the low-temperature mixer, and the waste heat generated by the mixing can be recovered, which can be used to preheat a new extraction solvent to reduce energy consumption.

[0016] In the present invention, with the cooperation of the ion extraction and purification component, the pumping flow control guide tube is used to facilitate the delivery of the material in the low-temperature mixer to the extraction reaction tank. Then, the microbial processor uses the metering addition tube to add the microorganisms to the material in the low-temperature mixer, and with the cooperation of the catalytic tank, the impurities are further removed through the catalytic fermentation operation to improve the purity of the nickel-cobalt salt. Then, the material is delivered to the extraction reaction tank through the discharge valve pipe to carry out the final extraction reaction, thereby improving the purity and recovery rate of the nickel-cobalt salt. Then, the extracted material is discharged through the discharge valve pipe, and the generated waste is discharged from the waste valve pipe. The overall multi-stage treatment is used to achieve efficient extraction and purification of the nickel-cobalt salt, and the extraction efficiency and purity are improved.

[0017] In the present invention, the energy-saving motor is started under the control instruction of the PLC controller under the cooperation of the centrifugal extraction membrane separation component, and the energy-saving motor is then transmitted to the first bearing column and the second bearing column through the pulley structure, so that the first bearing column rotates under the drive of the energy-saving motor, driving the centrifugal microbubble generating stirring rod to rotate at a high speed, and the centrifugal microbubble generating stirring rod generates a large number of tiny bubbles during the high-speed rotation process, and these bubbles help to improve the mixing uniformity and mass transfer efficiency of the materials, and the bottom of the centrifugal microbubble generating stirring rod is connected to the rotating ring frame to ensure that the stirring rod remains stable during the rotation process, and the second bearing rotating column rotates under the drive of the energy-saving motor, driving the membrane separation structure located in the rotating groove of the limiting rotating groove frame to rotate at a high speed, realizing efficient membrane separation, improving the purity and recovery rate of the materials, and then using a plurality of groups of microreactors to further process and purify the materials, and after the treatment, the fluid detection and discharge end is used to detect and discharge the processed materials into the fluid collection pipeline, and at the same time, under the cooperation of the supercritical carbon dioxide extractor, when the materials are located inside the centrifugal box for operation, the extraction efficiency and selectivity of the materials in high-speed rotation are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of a sulfate system nickel-cobalt salt extraction production system of the present invention; Figure 2 This is a schematic structural diagram of another angle of the main body in a sulfate system nickel-cobalt salt extraction production system of the present invention; Figure 3 It is a schematic diagram of the internal cross-sectional structure of a centrifugal box in a sulfate system nickel-cobalt salt extraction production system of the present invention; Figure 4 It is a structural schematic diagram of a centrifugal extraction membrane separation component in a sulfate system nickel-cobalt salt extraction production system of the present invention; Figure 5 This is a schematic diagram of the installation position structure of an ion extraction and purification component in a sulfate system nickel-cobalt salt extraction production system of the present invention; Figure 6 It is a schematic diagram of the structure of an ion extraction and purification component in a sulfate system nickel-cobalt salt extraction production system of the present invention; Figure 7 This is a schematic structural diagram from another angle of an ion extraction and purification component in a sulfate system nickel-cobalt salt extraction production system of the present invention.

[0019] In the figure: 1, centrifugal extraction membrane separation component; 101, centrifugal box; 102, first bearing column; 103, centrifugal microbubble generating stirring rod; 104, rotating ring frame; 105, membrane separation structure; 106, second bearing column; 107, limiting turn rail slot frame; 108, turn slot; 109, placement frame; 1090, microreactor; 1091, fluid detection and delivery end; 2, bearing frame; 3, control energy-saving motor; 4, pulley structure; 5, supercritical carbon dioxide extractor; 6, sealing frame; 7, frame; 8, PLC controller; 9, ion extraction purification component; 901, fluid collection tube 902, high-pressure tank; 903, first output pump pipe; 904, connecting pipe; 905, classified ion liquid injection tank; 906, Ph detection regulator; 907, two-way conduit; 908, ultrasonic generator; 909, second output pump pipe; 9090, microbial processor; 9091, fluid pressure pipe; 9092, ultrasonic transmission tube; 9093, low-temperature mixer; 9094, metering addition pipe; 9095, spiral plate heat exchanger; 9096, catalytic tank; 9097, discharge valve pipe; 9098, extraction reaction tank; 9099, pumping flow control guide pipe; 10, injection end. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the present invention, reference is made to Figure 1 - Figure 7 As shown: a sulfate system nickel-cobalt salt extraction production system, comprising a centrifugal extraction membrane separation component 1, the bottom of the centrifugal extraction membrane separation component 1 is fastened with a sealing frame 6, a supercritical carbon dioxide extractor 5 is installed on the side of the centrifugal extraction membrane separation component 1, the bottom of the sealing frame 6 is fastened with a frame 7, and an ion extraction purification component 9 is installed inside the frame 7; The ion extraction purification component 9 includes a fluid collection pipeline 901, the bottom end of the fluid collection pipeline 901 is connected to a high-pressure tank 902, two sets of electric iris valves are installed inside the high-pressure tank 902, the top and bottom of the outer surface of the high-pressure tank 902 are respectively connected to a first output pump pipe 903 and a second output pump pipe 909, the two sets of electric iris valves are respectively located at the bottom of the connecting end of the first output pump pipe 903 and the second output pump pipe 909, the side end of the first output pump pipe 903 is connected to a connecting pipe 904, the bottom of the connecting pipe 904 is connected to a classified ion liquid injection tank 905, and the classified ion liquid The bottom end of the injection tank 905 is connected to a Ph detection regulator 906, the bottom of the Ph detection regulator 906 is connected to a two-way conduit 907, the bottom of the two-way conduit 907 is connected to a low-temperature mixer 9093, the Ph detection regulator 906 and the classified ion liquid injection tank 905 are separately connected through the two-way conduit 907 and the low-temperature mixer 9093, an ultrasonic generator 908 and an ultrasonic transmission tube 9092 are respectively installed on the left and right ends of the top of the low-temperature mixer 9093, and a spiral plate heat exchanger 9095 is connected on the top surface of the low-temperature mixer 9093 through a pipeline.

[0022] A microbial processor 9090 is installed at the side end of the second output pump tube 909, and the side end of the microbial processor 9090 is connected to a fluid pressure tube 9091, and the bottom end of the fluid pressure tube 9091 is connected to a low-temperature mixer 9093. The side end of the microbial processor 9090 is connected to a metering addition tube 9094, and the side end of the metering addition tube 9094 is connected to a catalytic tank 9096, and the side end of the catalytic tank 9096 is connected to a discharge valve tube 9097, and the side end of the discharge valve tube 9097 is connected to an extraction reaction tank 9098. The top side end of the low-temperature mixer 9093 is connected to a pumping flow control guide tube 9099, and the side end of the pumping flow control guide tube 9099 is connected to the surface of the extraction reaction tank 9098, and the side end surfaces of the extraction reaction tank 9098 are respectively connected to a discharge valve tube and a waste liquid valve tube.

[0023] In a specific solution, when extraction operation is required, after the processing reaction in the centrifugal extraction membrane separation component 1, the material enters the ion extraction purification component 9 from the fluid collection pipeline 901, and is sent to the high-pressure tank 902. Two sets of electric iris valves are installed inside the high-pressure tank 902, which are respectively located at the bottom of the connection end of the first output pump tube 903 and the second output pump tube 909 to control the flow direction of the material. The high-pressure tank 902 is used to form a high-pressure environment to ensure the smooth progress of subsequent material processing. Secondly, the first output pump tube 903 is used to send the material into the connecting tube 904, and the second output pump tube 909 is used to send the material into the microbial processor. 9090, and then the connecting pipe 904 delivers the material to the classified ion liquid injection tank 905, so that the classified ion liquid injection tank 905 injects a specific ion liquid according to the operation requirements to improve the purity of the nickel-cobalt salt, and with the cooperation of the two-way conduit 907, the Ph detection regulator 906 synchronously detects and regulates the pH value in the transported material to ensure the purity of the nickel-cobalt salt. Then the material is transported from the two-way conduit 907 to the low-temperature mixer 9093, and the low-temperature mixer 9093 is used to mix the material under a low-temperature environment to improve the extraction efficiency, and with the cooperation of the ultrasonic generator 908 and the ultrasonic transmission tube 9092, the ultrasonic generator 908 generates an ultrasonic The ultrasonic wave is transmitted to the other end of the low-temperature mixer 9093 through the ultrasonic transmission tube 9092, so that the generated ultrasonic wave is located at the two ends of the low-temperature mixer 9093 to form opposite impacts, and the impact of the ultrasonic wave is used to promote the mixing and mass transfer of the materials. The spiral plate heat exchanger 9095 is connected to the low-temperature mixer 9093 through a pipeline to ensure the low-temperature environment of the low-temperature mixer 9093, and the waste heat generated by the mixing can be recovered, which can be used to preheat the new extraction solvent, reduce energy consumption, and with the cooperation of the pumping flow control guide tube 9099, it is convenient to transport the materials in the low-temperature mixer 9093 to the extraction reaction tank 90 98, the microbial processor 9090 then uses the metering tube 9094 to add the microorganisms to the material in the low-temperature mixer 9093, and with the cooperation of the catalytic tank 9096, the impurities are further removed through catalytic fermentation operations to improve the purity of the nickel-cobalt salt. Then, the material is sent to the extraction reaction tank 9098 through the discharge valve tube 9097 for the final extraction reaction to improve the purity and recovery rate of the nickel-cobalt salt. Then, the extracted materials are discharged through the discharge valve tubes, and the generated waste is discharged from the waste valve tube. The overall multi-stage treatment is used to achieve efficient extraction and purification of nickel-cobalt salts and improve extraction efficiency and purity.

[0024] In the present invention, according to Figure 1 - Figure 4As shown, the centrifugal extraction membrane separation component 1 includes a centrifugal housing 101, which is installed on the top of the sealing frame 6. The control energy-saving motor 3 is installed on both the left and right ends of the top of the centrifugal housing 101, and the top output end of the control energy-saving motor 3 is connected to a pulley structure 4.

[0025] The pulley structure 4 is provided in two groups, the inner side end of one group of pulley structures 4 is connected to the first bearing column 102, and the inner side end of the other group of pulley structures 4 is connected to the second bearing column 106. The second bearing column 106 is located inside the first bearing column 102 to form an inner and outer column structure, and the outside of the first bearing column 102 is fastened with a centrifugal microbubble generating stirring rod 103.

[0026] The bottom of the centrifugal microbubble generating stirring rod 103 is rotatably connected to a rotating ring frame 104, the bottom of the second bearing rotating column 106 is sleeved and connected to a membrane separation structure 105, a limiting transfer track frame 107 is installed on the outer circumference of the membrane separation structure 105, and a transfer groove 108 is opened on the side surface of the limiting transfer track frame 107, and the membrane separation structure 105 is located inside the transfer groove 108 and is rotatably connected.

[0027] The sealing frame 6 is internally installed with a fixed frame 109, and the limiting transfer groove frame 107 is located in the sealing frame 6. A plurality of groups of microreactors 1090 are placed inside the fixed frame 109. The bottom ends of the plurality of groups of microreactors 1090 are connected to a fluid detection and discharge end 1091, and the bottom end of the fluid detection and discharge end 1091 is connected to the top of the fluid collection pipeline 901.

[0028] The top of the centrifugal housing 101 is fastened with a bearing bracket 2 , and the bearing bracket 2 is used to connect and set the tops of the second bearing column 106 and the first bearing column 102 , respectively.

[0029] An injection port 10 is provided at the top of the centrifugal housing 101 , and a PLC controller 8 is installed on the bottom side of the frame 7 .

[0030] The PLC controller 8 is used to perform signal connection and regulation on the high-pressure tank 902, the classified ion liquid injection tank 905, the Ph detection regulator 906, the low-temperature mixer 9093, the microbial processor 9090, the extraction reaction tank 9098 and the control energy-saving motor 3.

[0031] In a specific solution, after the material to be extracted enters the centrifugal box 101 from the injection end 10 and is ready for centrifugal extraction and membrane separation, the energy-saving motor 3 is started under the control instruction of the PLC controller 8, and then the energy-saving motor 3 transmits power to the first bearing column 102 and the second bearing column 106 through the pulley structure 4, so that the first bearing column 102 rotates under the drive of the energy-saving motor 3, driving the centrifugal microbubble generating stirring rod 103 to rotate at a high speed, and the centrifugal microbubble generating stirring rod 103 generates a large number of tiny bubbles during the high-speed rotation process, and these bubbles help to improve the mixing uniformity and mass transfer efficiency of the materials, and the bottom rotation of the centrifugal microbubble generating stirring rod 103 is connected to the centrifugal microbubble generating stirring rod 103. A rotating ring frame 104 is connected to ensure that the stirring rod remains stable during the rotation process. At the same time, the second bearing rotating column 106 rotates under the drive of the energy-saving motor 3, driving the membrane separation structure 105 to rotate at high speed inside the rotating groove 108 of the limiting rotating groove frame 107, thereby realizing efficient membrane separation and improving the purity and recovery rate of the material. After that, a number of groups of microreactors 1090 are used to further process and purify the material. After the treatment, the fluid detection and discharge end 1091 is used to detect and discharge the processed material into the fluid collection pipeline 901. At the same time, with the cooperation of the supercritical carbon dioxide extractor 5, when the material is located inside the centrifugal box 101 for operation, the extraction efficiency and selectivity of the material in high-speed rotation are improved.

[0032] The centrifugal microbubble generating agitator 103, microreactor 1090, control energy-saving motor 3, supercritical carbon dioxide extractor 5, PLC controller 8, classified ion liquid injection tank 905, Ph detection regulator 906, ultrasonic generator 908, microbial processor 9090, low-temperature mixer 9093, spiral plate heat exchanger 9095 and extraction reaction tank 9098 wiring diagram in the present invention belong to the common knowledge in the field, and its working principle is a well-known technology. Its model selects a suitable model according to actual use, so the centrifugal microbubble generating agitator 103, microreactor 1090, control energy-saving motor 3, supercritical carbon dioxide extractor 5, PLC controller 8, classified ion liquid injection tank 905, Ph detection regulator 906, ultrasonic generator 908, microbial processor 9090, low-temperature mixer 9093, spiral plate heat exchanger 9095 and extraction reaction tank 9098 will no longer be explained in detail. The control method and wiring arrangement.

[0033] The use method and working principle of the device are as follows: first, after the material to be extracted enters the centrifugal box 101 from the injection end 10 and is ready for centrifugal extraction and membrane separation, the energy-saving motor 3 is started under the control instruction of the PLC controller 8, and then the energy-saving motor 3 is controlled to transmit power to the first bearing column 102 and the second bearing column 106 through the pulley structure 4, so that the first bearing column 102 rotates under the drive of the energy-saving motor 3, driving the centrifugal microbubble generating stirring rod 103 to rotate at a high speed, and the centrifugal microbubble generating stirring rod 103 generates a large number of tiny bubbles during the high-speed rotation process, and these bubbles help to improve the mixing uniformity and mass transfer efficiency of the materials, and the bottom of the centrifugal microbubble generating stirring rod 103 is rotatably connected to the rotating ring frame 1 04, ensure that the stirring rod remains stable during the rotation process, and at the same time, the second bearing rotating column 106 rotates under the drive of the energy-saving motor 3, driving the membrane separation structure 105 to rotate at a high speed inside the rotating groove 108 of the limiting rotating groove frame 107, so as to achieve efficient membrane separation and improve the purity and recovery rate of the material. Then, a plurality of groups of microreactors 1090 are used to further process and purify the material, and after the treatment, the fluid detection and discharge end 1091 is used to detect and discharge the processed material into the fluid collection pipeline 901. At the same time, with the cooperation of the supercritical carbon dioxide extractor 5, when the material is located inside the centrifugal box 101 for operation, the extraction efficiency and selectivity of the material in high-speed rotation are improved, and then the material enters the ion extraction pure water from the fluid collection pipeline 901. After the component 9 is formed, the material is sent to the high-pressure tank 902, and two sets of electric iris valves are installed inside the high-pressure tank 902, which are respectively located at the bottom of the connection end of the first output pump tube 903 and the second output pump tube 909 to control the flow direction of the material. The high-pressure tank 902 is used to form a high-pressure environment to ensure the smooth progress of subsequent material processing. Secondly, the first output pump tube 903 is used to send the material to the connecting tube 904, and the second output pump tube 909 is used to send the material to the microbial processor 9090. After that, the connecting tube 904 sends the material to the classified ion liquid injection tank 905, so that the classified ion liquid injection tank 905 can inject specific ion liquid according to the operation requirements to improve the purity of nickel-cobalt salt, and with the cooperation of the two-way conduit 907, Ph The detection and control device 906 simultaneously detects and controls the pH value of the transported material to ensure the purity of the nickel-cobalt salt. Then the material is transported from the bidirectional conduit 907 to the low-temperature mixer 9093. The low-temperature mixer 9093 is used to mix the material under low-temperature conditions to improve the extraction efficiency. In cooperation with the ultrasonic generator 908 and the ultrasonic transmission tube 9092, the ultrasonic generator 908 generates ultrasonic waves, which are transmitted to the other end of the low-temperature mixer 9093 through the ultrasonic transmission tube 9092, so that the generated ultrasonic waves are located at both ends of the low-temperature mixer 9093 to form opposite impacts, and the impact of ultrasonic waves is used to promote the mixing and mass transfer of materials. The spiral plate heat exchanger 9095 is connected to the low-temperature mixer 9093 through a pipeline.Ensure the low temperature environment of the low temperature mixer 9093, and recycle the waste heat generated by the mixing, which can be used to preheat the new extraction solvent to reduce energy consumption. Then, the microbial processor 9090 uses the metering tube 9094 to add microorganisms to the materials in the low temperature mixer 9093, and with the cooperation of the catalytic tank 9096, further remove impurities through catalytic fermentation operations to improve the purity of the nickel-cobalt salt. Then, use the discharge valve tube 9097 to send the material to the extraction reaction tank 9098 for the final extraction reaction to improve the purity and recovery rate of the nickel-cobalt salt. Then, use the discharge valve tube to discharge the extracted materials, and the generated waste is discharged from the waste valve tube. The overall multi-stage treatment realizes the efficient extraction and purification of nickel-cobalt salt and improves the extraction efficiency and purity.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sulfate system nickel-cobalt salt extraction production system, characterized in that: It comprises a centrifugal extraction membrane separation component (1), the bottom of the centrifugal extraction membrane separation component (1) is fastened to a sealing frame (6), a supercritical carbon dioxide extractor (5) is installed on the side of the centrifugal extraction membrane separation component (1), the bottom of the sealing frame (6) is fastened to a frame (7), and an ion extraction purification component (9) is installed inside the frame (7); The ion extraction purification component (9) comprises a fluid collection pipeline (901), the bottom end of the fluid collection pipeline (901) is connected to a high-pressure tank (902), two groups of electric iris valves are installed inside the high-pressure tank (902), the top and bottom of the external surface of the high-pressure tank (902) are respectively connected to a first output pump tube (903) and a second output pump tube (909), the two groups of electric iris valves are respectively located at the bottom of the connecting end of the first output pump tube (903) and the second output pump tube (909), the side end of the first output pump tube (903) is connected to a connecting tube (904), the bottom of the connecting tube (904) is connected to a classified ion liquid injection tank (905), the classified ion liquid injection tank (905) is connected to the classified ion liquid injection tank (906), and the classified ion liquid injection tank (907) is connected to the classified ion liquid injection tank (908). The bottom end of the sub-liquid injection tank (905) is connected to a Ph detection regulator (906), the bottom of the Ph detection regulator (906) is connected to a two-way conduit (907), the bottom of the two-way conduit (907) is connected to a low-temperature mixer (9093), the Ph detection regulator (906) and the classified ion liquid injection tank (905) are independently connected through the two-way conduit (907) and the low-temperature mixer (9093), the left and right ends of the top of the low-temperature mixer (9093) are respectively installed with an ultrasonic generator (908) and an ultrasonic transmission tube (9092), and the top surface of the low-temperature mixer (9093) is connected to a spiral plate heat exchanger (9095) through a pipeline.

2. The sulfate system nickel-cobalt salt extraction production system according to claim 1, characterized in that: A microbial processor (9090) is installed at the side end of the second output pump tube (909), the side end of the microbial processor (9090) is connected to a fluid pressure tube (9091), the bottom end of the fluid pressure tube (9091) is connected to a low-temperature mixer (9093), the side end of the microbial processor (9090) is connected to a metering addition tube (9094), the side end of the metering addition tube (9094) is connected to a catalytic tank (9096), the catalytic tank ( The side end of the low-temperature mixer (9096) is connected to a discharge valve pipe (9097), and the side end of the discharge valve pipe (9097) is connected to an extraction reaction tank (9098). The top side end of the low-temperature mixer (9093) is connected to a pumping flow control guide pipe (9099), and the side end of the pumping flow control guide pipe (9099) is connected to the surface of the extraction reaction tank (9098). The side end surface of the extraction reaction tank (9098) is respectively connected to a discharge valve pipe and a waste liquid valve pipe.

3. The sulfate system nickel-cobalt salt extraction production system according to claim 2, characterized in that: The centrifugal extraction membrane separation component (1) comprises a centrifugal housing (101), wherein the centrifugal housing (101) is mounted on the top of a sealing frame (6), and a control energy-saving motor (3) is installed on both left and right ends of the top of the centrifugal housing (101), and a pulley structure (4) is connected to the top output end of the control energy-saving motor (3).

4. The sulfate system nickel-cobalt salt extraction production system according to claim 3, characterized in that: The pulley structure (4) is provided in two groups, wherein the inner side end of the pulley structure (4) of one group is connected to a first bearing rotating column (102), and the inner side end of the pulley structure (4) of the other group is connected to a second bearing rotating column (106), wherein the second bearing rotating column (106) is located inside the first bearing rotating column (102) to form an inner and outer rotating column structure, and the outside of the first bearing rotating column (102) is fastened with a centrifugal microbubble generating stirring rod (103).

5. The sulfate system nickel-cobalt salt extraction production system according to claim 4, characterized in that: The bottom of the centrifugal microbubble generating stirring rod (103) is rotatably connected to a rotating ring frame (104), the bottom of the second bearing rotating column (106) is sleeved and connected to a membrane separation structure (105), a limiting transfer track frame (107) is installed on the outer circumference of the membrane separation structure (105), a transfer track frame (108) is provided on the side surface of the limiting transfer track frame (107), and the membrane separation structure (105) is located inside the transfer track (108) and is rotatably connected.

6. The sulfate system nickel-cobalt salt extraction production system according to claim 5, characterized in that: The sealing frame (6) is internally installed with a placement frame (109), the limiting transfer groove frame (107) is located inside the sealing frame (6), and a plurality of groups of microreactors (1090) are placed inside the placement frame (109), and the bottom ends of the plurality of groups of microreactors (1090) are connected to a fluid detection and discharge end (1091), and the bottom end of the fluid detection and discharge end (1091) is connected to the top of the fluid collection pipeline (901).

7. The sulfate system nickel-cobalt salt extraction production system according to claim 6, characterized in that: A bearing fixing frame (2) is fastened to the top of the centrifugal housing (101), and the bearing fixing frame (2) is used to respectively connect and arrange the tops of the second bearing rotating column (106) and the first bearing rotating column (102).

8. The sulfate system nickel-cobalt salt extraction production system according to claim 7, characterized in that: An injection port (10) is provided at the top of the centrifugal housing (101), and a PLC controller (8) is installed on the bottom side of the frame (7).

9. The sulfate system nickel-cobalt salt extraction production system according to claim 8, characterized in that: The PLC controller (8) is used to perform signal connection control on the high-pressure tank (902), the classified ion liquid injection tank (905), the Ph detection regulator (906), the low-temperature mixer (9093), the microbial processor (9090), the extraction reaction tank (9098) and the energy-saving control motor (3).

10. A process for the production system of nickel-cobalt salt extraction in a sulfate system, characterized in that: The sulfate system nickel-cobalt salt extraction production system according to claim 9 is used, comprising the following steps: S1. First, the material to be extracted is allowed to enter from the injection end (10), and the PLC controller (8) is caused to start the energy-saving motor (3). The energy-saving motor (3) is then used to drive the first bearing rotating column (102) and the second bearing rotating column (106) in the centrifugal extraction membrane separation component (1) through two sets of pulley structures (4) to rotate in different directions. S2, after centrifugal reaction, the material is sequentially processed by the membrane separation structure (105) and a plurality of groups of microreactors (1090), and then enters the ion extraction purification component (9) from the fluid collection pipeline (901); S3. Secondly, the material is subjected to secondary extraction reaction in the ion extraction purification component (9), and the pH value, pressure and type of ionic liquid are automatically adjusted according to the extraction reaction, and the high-pressure tank (902), low-temperature mixer (9093), ultrasonic generator (908) and microbial processor (9090) are simultaneously used to further improve the extraction efficiency and purity; S4. After the final extraction reaction in the extraction reaction tank (9098), the extracted material is discharged through the drain valve pipe, and the generated waste is discharged from the waste valve pipe.

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