Iron removal device and method for nickel-cobalt-manganese sulfuric acid solution

Abstract

The invention discloses an iron removal device and method for a nickel-cobalt-manganese sulfuric acid solution, and relates to the field of non-ferrous metal hydrometallurgy, the iron removal device comprises an iron removal reactor, a sealing cover, a protective shell, a degassing assembly, a transmission assembly, a pressure relief assembly of a cavity and a mounting shell, and the cavity is formed in the wall body of the iron removal reactor; the sealing cover is installed at a top opening of the iron removal reactor, a stirring rod is vertically arranged in the iron removal reactor, the protective shell is arranged on the sealing cover, the degassing assembly and the transmission assembly are both arranged in the protective shell, the degassing assembly is used for discharging carbon dioxide generated by reaction into the iron removal reactor, the degassing assembly is communicated with the cavity through a gas supply pipe, and the transmission assembly is arranged in the cavity. The pressure relief assembly is used for discharging carbon dioxide in the chamber; the degassing assembly comprises a sucking pump, a sucking opening of the sucking pump is communicated with a gas guide pipe, the bottom end of the gas guide pipe penetrates through the sealing cover and extends into the iron removal reactor, an output opening of the sucking pump is communicated with a variable-diameter pipeline, the other end of the variable-diameter pipeline is communicated with an exhaust pipe, the exhaust pipe is connected with a gas supply pipe, and the variable-diameter pipeline is in transmission connection with the stirring rod through a transmission assembly; a pressure relief pipe is arranged at the bottom of the outer wall of the iron removal reactor, the pressure relief assembly comprises a protective shell, the pressure relief pipe communicates with the protective shell, a movable plate is arranged in the protective shell, a rubber pad adheres to the face, close to the pressure relief pipe, of the movable plate, supporting springs are arranged at the four corners of the other face of the movable plate, and the outer wall of one side of the protective shell communicates with the mounting shell through a communicating pipe. The iron removal efficiency and the production efficiency are improved, the energy consumption and the production cost are reduced, the operation safety and the automation degree are further enhanced, and good environmental protection and economic benefits are achieved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of hydrometallurgy of nonferrous metals, and specifically relates to an iron removal device and method for nickel-cobalt-manganese sulfuric acid solution. Background Art

[0002] Nickel-cobalt-manganese sulfate solution is a metal sulfate compound composed of three metal elements: nickel, cobalt, and manganese. Nickel-cobalt-manganese sulfate has good solubility and can be quickly dissolved in water to form a blue solution. It also has high electrical conductivity and thermal stability. It is mainly used in electric vehicles, energy storage systems, and portable electronic products. The iron impurities it contains will affect the whiteness index, dielectric properties, and chemical stability of the product. Therefore, iron removal is of great significance to improving the quality and application value of nickel-cobalt-manganese sulfate solution.

[0003] A deironing device for nickel-cobalt-manganese sulfuric acid solution described in the prior art is provided with a deironing reactor and an aging reactor, a stirrer is provided in the deironing reactor, an aging reactor stirrer is provided in the aging reactor, a deironing reactor inner cylinder is provided in the deironing reactor, a mixing feed pipe and a carbonate solution feed pipe are provided between the interlayer of the deironing reactor and the deironing reactor inner cylinder, a mixer of a preheating device is provided on the top of the mixing feed pipe, a compressed air inlet and a feed port for the deironing liquid are provided on the mixer, and an automatic stone powder feeder is provided on the aging reactor.

[0004] Although the above technology can be used continuously for the iron removal production of nickel-cobalt-manganese sulfuric acid solution, greatly improving the production efficiency, and can oxidize divalent iron ions into trivalent iron ions without adding oxidants, the chemical reaction may produce gas. For example, the reaction of carbonates with acids in the solution may produce carbon dioxide gas, and carbon dioxide will form carbonic acid when dissolved in water, which will reduce the pH value of the solution and affect the solubility and the progress of the reaction. Summary of the invention

[0005] Based on this, the object of the present invention is to provide an iron removal device and method for nickel-cobalt-manganese sulfuric acid solution to solve the technical problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A deironing device for nickel-cobalt-manganese sulfuric acid solution, comprising a deironing reactor, a sealing cover, a protective shell, a degassing component, a transmission component, a pressure relief component of a chamber and a mounting shell, wherein a chamber is provided in the wall of the deironing reactor, the sealing cover is installed at the top opening of the deironing reactor, a stirring rod is vertically provided in the deironing reactor, the protective shell is arranged on the sealing cover, the degassing component and the transmission component are both arranged in the protective shell, the degassing component is used to discharge carbon dioxide generated by the reaction from the deironing reactor, the degassing component is connected to the chamber through an air supply pipe, and the pressure relief component is used to discharge carbon dioxide in the chamber; The degassing assembly includes an air pump, the suction port of the air pump is connected to an air guide pipe, the bottom end of the air guide pipe passes through the sealing cover and extends to the inside of the deironing reactor, the output port of the air pump is connected to a reducing pipe, the other end of the reducing pipe is connected to an exhaust pipe, the exhaust pipe is connected to the air supply pipe, and the reducing pipe is connected to the stirring rod through a transmission assembly; A pressure relief pipe is provided at the bottom of the outer wall of the iron removal reactor, and the pressure relief assembly includes a protective shell. The pressure relief pipe is connected to the protective shell, and a movable plate is provided in the protective shell. A rubber pad is bonded to one side of the movable plate close to the pressure relief pipe, and support springs are provided at the four corners of the other side of the movable plate. One side outer wall of the protective shell is connected to the installation shell through a connecting pipe.

[0007] Specifically, the vacuum pump is fixed to the top wall of the sealing cover by screws, a sealing block is provided on the lower surface of the sealing cover at the chamber, the diameter of the variable diameter pipe is larger than the diameter of the air guide pipe and the exhaust pipe, and the exhaust pipe is flange-connected to the air supply pipe.

[0008] The technical solution is specific, the transmission assembly includes a sealing shell, the sealing shell is installed on the reducing pipe by screws, the walls of the reducing pipe and the sealing shell in contact are provided with through grooves, a horizontal shaft is rotatably installed in the sealing shell, a first impeller is fixedly sleeved on the shaft, and one side blade of the first impeller passes through the through groove and is located in the reducing pipe.

[0009] The technical solution is specific, the top end of the stirring rod passes through the sealing cover and is located in the protective shell, the top end of the stirring rod is connected to the vertical shaft through a flange, the outer wall of the vertical shaft is fixedly sleeved with a worm gear, one side of the worm gear is meshingly connected to a worm, both ends of the worm gear are fixed with connecting shafts, one end of the shaft rod passes through the side wall of the sealing shell and is connected to a connecting shaft flange, and the other connecting shaft is rotatably connected to the inner wall of the protective shell.

[0010] Specifically, the four corners of the protective shell are fixed with horizontal guide rods, the four guide rods all pass through the movable plate, the contact parts of the movable plate and the four guide rods are slidably connected, and the four support springs are all mounted on the guide rods.

[0011] Specifically, the two ends of the four support springs are fixedly connected to the outer wall of the movable plate and the inner wall of the protective shell, and a rubber plug is integrally provided at the center of one side of the rubber pad away from the support spring, and the rubber plug matches the inner wall of the pressure relief pipe.

[0012] Specifically, the mounting shell is L-shaped, a top cover is installed on the top of the mounting shell by screws, a second impeller is provided in the mounting shell at the connecting pipe, a transmission shaft is passed through the center of the second impeller, a generator is installed on the upper surface of the top cover by screws, the shaft end of the generator passes through the top cover and is connected to the transmission shaft flange, a battery is provided inside the mounting shell at the protective shell, and a partition is fixed inside the mounting shell between the transmission shaft and the battery.

[0013] Specifically, the generator is electrically connected to the battery through a wire, a guide tube is provided on a side of the mounting shell away from the connecting tube, the guide tube and the axis of the connecting tube are on the same horizontal line, and the guide tube is connected to the planting area.

[0014] Specifically, the sealing cover is provided with a mixer and a carbonate solution feed pipe on both sides thereof, the pipes of the mixer and the carbonate solution feed pipe both penetrate the sealing cover and extend into the deironing reactor, the outer wall of the stirring rod is provided with two groups of stirring blades, the top of the wall of the deironing reactor is connected to an overflow pipe, the overflow pipe is connected to the aging reactor, and solenoid valves are installed on the mixer and the carbonate solution feed pipe.

[0015] According to the above technical scheme, a method for removing iron from a nickel-cobalt-manganese sulfuric acid solution is also provided, comprising the following steps: Step 1, solution reaction, the nickel-cobalt-manganese sulfuric acid solution and compressed air are mixed and heated through a mixer, and then sent into the iron removal reactor, and then the carbonate solution enters the iron removal reactor through a carbonate solution feed pipe, and the mixed solution reacts with the carbonate solution, and carbon dioxide is generated during the reaction; Step 2, degassing, the air pump works to send the carbon dioxide generated by the reaction into the variable diameter pipe through the air guide pipe, the flow of carbon dioxide gas will drive the first impeller to rotate, the worm drives the worm wheel to rotate through the shaft and the connecting shaft, and then the stirring rod is controlled by the rotating vertical shaft to stir, and at the same time, the flowing carbon dioxide is sent into the chamber of the wall of the deironing reactor through the exhaust pipe and the air supply pipe to achieve a heat preservation effect, and the solution is kept in the reactor for a certain reaction time under the action of the stirring force before it can flow to the deironing reactor through the overflow pipe; Step three, secondary utilization. With the entry of carbon dioxide, the pressure in the chamber will increase until the rubber plug is pushed, causing the movable plate to move along the guide rod and squeeze the support spring. At this time, the carbon dioxide in the chamber will enter the protective shell through the pressure relief pipe and enter the installation shell through the connecting pipe. The flow of gas drives the second impeller to rotate, and the second impeller drives the generator to run through the transmission shaft, converting the rotational force into electricity and storing it in the battery.

[0016] In summary, the present invention mainly has the following beneficial effects: the present application improves the iron removal efficiency and production efficiency, reduces energy consumption and production costs, and also enhances the safety and automation of operation, and has good environmental protection and economic benefits; First, the nickel-cobalt-manganese sulfuric acid solution is mixed with compressed air and heated through a mixer, and then sent to the iron removal reactor, and then reacts with the carbonate solution entering. At this time, the vacuum pump works to extract the carbon dioxide gas generated by the reaction through the air guide pipe. When the carbon dioxide gas passes through the variable diameter pipe, it will drive the rotation of the first impeller. The rotating first impeller drives the worm to rotate through the shaft and the connecting shaft, and the worm drives the meshing worm wheel to rotate, so that the worm wheel drives the stirring rod to rotate through the vertical axis. The rotating stirring rod can accelerate the reaction of the solution through the stirring blades, and the carbon dioxide gas will be sent into the chamber through the exhaust pipe and the air supply pipe, reducing the heat conduction between the solid structure and improving the insulation effect, thereby avoiding the influence of the reaction efficiency due to gas accumulation, ensuring the pH value of the solution and the utilization of the carbon dioxide gas; As the amount of carbon dioxide gas entering the chamber gradually increases, the pressure in the chamber increases. When the pressure is greater than the elasticity of the supporting spring, the rubber plug and the movable plate will be pushed to move through the pressure relief pipe. At this time, the carbon dioxide will enter the protective shell through the pressure relief pipe and enter the installation shell from the connecting pipe. The flowing gas drives the second impeller to rotate, thereby realizing the operation of the generator. The carbon dioxide is sent to the plant area through the guide pipe to facilitate the photosynthesis of the plants, further utilizing the carbon dioxide and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the device of the present invention; Figure 2 For the present invention Figure 1 Main view; Figure 3 It is a cross-sectional view of a reactor of the present invention; Figure 4 For the present invention Figure 3 Main view; Figure 5 It is a structural diagram of the degassing component and the transmission component of the present invention; Figure 6 For the present invention Figure 5 Rear view structure diagram; Figure 7 This is a diagram showing the internal structure of the installation shell of the present invention; Figure 8 For the present invention Figure 7 Top view; Fig. 9 The figure is a flow chart of the method of the present invention.

[0018] Description of the drawings: 1. Iron removal reactor; 101. Sealing cover; 1011. Blocking block; 102. Mixer; 103. Carbonate solution feed pipe; 104. Stirring rod; 1041. Stirring blade; 105. Chamber; 106. Overflow pipe; 107. Pressure relief pipe; 2. Protective shell; 3. Degassing assembly; 301. Air pump; 302. Air guide pipe; 303. Variable diameter pipe; 304. Exhaust pipe; 4. Transmission assembly; 401. Vertical shaft; 4011. Worm gear; 402. Worm; 403 , connecting shaft; 404, first impeller; 405, shaft; 406, sealing shell; 5, pressure relief assembly; 501, protective shell; 502, guide rod; 503, movable plate; 5031, rubber pad; 5032, rubber plug; 504, support spring; 505, connecting pipe; 6, mounting shell; 601, partition; 602, battery; 603, second impeller; 6031, transmission shaft; 604, guide pipe; 605, top cover; 606, generator; 7, air supply pipe; 8, through groove. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] The following describes an embodiment of the present invention based on its overall structure. Example

[0021] The solenoid valves in this application are powered by the battery 602 and controlled by the controller, which also controls the vacuum pump 301 and the stirring motor of the aging reactor; The structure in the mixer 102 adopts the structure in the prior art, that is, a mixing bin is provided, and the mixing bin is a trapezoidal structure, which is larger at the top and smaller at the bottom. An electric heating part is provided at the bottom of the mixing bin, and a compressed air inlet is provided at the top of the mixing bin. The feed port for the iron removal liquid is provided at the side of the mixing bin. The outlet diameter at the bottom of the mixing bin is 1 / 2 of the diameter of the bottom of the mixing bin. The outlet at the bottom of the mixing bin is connected to a mixing feed pipe, and the mixing feed pipe passes through the electric heating part.

[0022] See also Figure 1-4 As shown, a deironing device for nickel-cobalt-manganese sulfuric acid solution includes a deironing reactor 1, a sealing cover 101, a protective shell 2, a degassing component 3, a transmission component 4, a pressure relief component 5 of a chamber 105, and a mounting shell 6. The chamber 105 is opened in the wall of the deironing reactor 1, the sealing cover 101 is installed at the top opening of the deironing reactor 1, a stirring rod 104 is vertically arranged in the deironing reactor 1, the protective shell 2 is arranged on the sealing cover 101, and a mixer 102 and a carbonate solution feed pipe 103 are respectively arranged on both sides of the sealing cover 101, and a pipeline between the mixer 102 and the carbonate solution feed pipe 103 They all penetrate the sealing cover 101 and extend into the deironing reactor 1. The outer wall of the stirring rod 104 is provided with two groups of stirring blades 1041. The top of the wall of the deironing reactor 1 is connected to the overflow pipe 106, and the overflow pipe 106 is connected to the aging reactor. Solenoid valves are installed on the mixer 102 and the carbonate solution feed pipe 103. The degassing component 3 and the transmission component 4 are both arranged in the protective shell 2. The degassing component 3 is used to discharge the carbon dioxide generated by the reaction from the deironing reactor 1. The degassing component 3 is connected to the chamber 105 through the air supply pipe 7. The pressure relief component 5 is used to discharge the carbon dioxide in the chamber 105.

[0023] When the nickel-cobalt-manganese sulfuric acid solution is subjected to iron removal, the staff starts the mixer 102 and the solenoid valve on the carbonate solution feed pipe 103 through the controller, and the nickel-cobalt-manganese sulfuric acid solution to be de-ironized is fed into the mixer 102 from the feed port of the de-ironized solution, and the compressed air enters the mixer 102 from the compressed air inlet. After being mixed in the mixing bin, the mixed air is fed into the de-ironizing reactor 1 through the mixing feed pipe at the bottom and heated by the electric heating unit. At this time, the carbonate solution enters the de-ironizing reactor 1 through the carbonate solution feed pipe 103, and the two solutions are mixed to react. At this time, the degassing component 3 is started by the controller to remove the products produced by the reaction. The generated carbon dioxide gas is extracted from the iron removal reactor 1, and when passing through the transmission component 4, it drives the stirring rod 104 to rotate. The rotating stirring rod 104 drives the stirring blade 1041 to mix the two solutions, thereby accelerating the reaction speed. Under the action of the stirring force, the solution reacts for a certain time, and the solution flows to the aging reactor through the overflow pipe 106. Under the action of the degassing component 3, the carbon dioxide gas is sent into the wall chamber 105 of the iron removal reactor 1, thereby avoiding the reaction efficiency affected by gas accumulation, ensuring the pH value of the solution, and utilizing the carbon dioxide gas, providing the power of stirring and reducing the heat conduction between the shells, thereby improving the insulation effect; Then, as the amount of carbon dioxide gas entering the chamber 105 gradually increases, the pressure in the chamber will also increase. When the pressure is greater than the supporting effect of the pressure relief component 5, the pressure relief component 5 will be pushed to move, so that the carbon dioxide gas is discharged through the pressure relief pipe 107, and enters the installation shell 6 through the connecting pipe 505 to cooperate with the generator 606 to generate electricity, and the carbon dioxide will be sent to the plant area through the guide pipe 604 to facilitate the photosynthesis of the plants, thereby reusing the gas and reducing energy consumption.

[0024] See also Figure 3-6 As shown, the degassing component 3 includes an air pump 301, the suction port of the air pump 301 is connected to an air guide pipe 302, the bottom end of the air guide pipe 302 passes through the sealing cover 101 and extends to the inside of the deironing reactor 1, the output port of the air pump 301 is connected to a reducing pipe 303, the other end of the reducing pipe 303 is connected to an exhaust pipe 304, the exhaust pipe 304 is connected to the air supply pipe 7, the reducing pipe 303 is transmission-connected to the stirring rod 104 through the transmission component 4, the air pump 301 is fixed to the top wall of the sealing cover 101 by screws, and a blocking block 1011 is provided on the lower surface of the sealing cover 101 at the chamber 105, the diameter of the reducing pipe 303 is larger than the diameters of the air guide pipe 302 and the exhaust pipe 304, and the exhaust pipe 304 is flange-connected to the air supply pipe 7; The transmission assembly 4 includes a sealing shell 406, which is installed on the reducing pipe 303 by screws. The walls of the reducing pipe 303 and the sealing shell 406 in contact are provided with through grooves 8. A horizontal shaft 405 is rotatably installed in the sealing shell 406. A first impeller 404 is fixedly sleeved on the shaft 405. One side blade of the first impeller 404 passes through the through groove 8 and is located in the reducing pipe 303. The top end of the stirring rod 104 passes through the sealing cover 101 and is located in the protective shell 2. The top end of the stirring rod 104 is connected to the vertical shaft 401 through a flange. The outer wall of the vertical shaft 401 is fixedly sleeved with a worm gear 4011. One side tooth surface of the worm gear 4011 is meshedly connected with a worm 402. Both ends of the worm 402 are fixed with connecting shafts 403. One end of the shaft 405 passes through the side wall of the sealing shell 406 and is flange-connected to one connecting shaft 403, and the other connecting shaft 403 is rotatably connected to the inner wall of the protective shell 2.

[0025] The vacuum pump 301 works to extract the carbon dioxide gas generated in the iron removal reactor 1 through the air duct 302 and discharge it into the reducing pipe 303. When the carbon dioxide gas enters the reducing pipe 303, the flow of the gas will drive the first impeller 404 to rotate. The rotating first impeller 404 drives the shaft 405 to rotate. The shaft 405 drives the worm 402 to rotate through the connecting shaft 403. The worm 402 drives the meshing worm wheel 4011 to rotate. The worm wheel 4011 drives the vertical shaft 401 to rotate. The vertical shaft 401 drives the stirring rod 104 connected to the bottom to rotate, thereby realizing the effective conversion and utilization of energy.

[0026] See also Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, a pressure relief pipe 107 is provided at the bottom of the outer wall of the deironing reactor 1, and the pressure relief assembly 5 includes a protective shell 501, the pressure relief pipe 107 is connected to the protective shell 501, and a movable plate 503 is provided in the protective shell 501. A rubber pad 5031 is bonded to one side of the movable plate 503 close to the pressure relief pipe 107, and support springs 504 are provided at the four corners of the other side of the movable plate 503. The outer wall of one side of the protective shell 501 is connected to the installation shell 6 through a connecting pipe 505, and horizontal springs 503 are fixed at the four corners in the protective shell 501. The guide rods 502 are all penetrated by the movable plate 503, and the movable plate 503 is slidably connected with the contact parts of the four guide rods 502. The four support springs 504 are sleeved on the guide rods 502, and both ends of the four support springs 504 are fixedly connected with the outer wall of the movable plate 503 and the inner wall of the protective shell 501. The rubber pad 5031 is provided with a rubber plug 5032 in the center of the side away from the support spring 504, and the rubber plug 5032 matches the inner wall of the pressure relief pipe 107; The mounting shell 6 is L-shaped, with a top cover 605 installed on the top of the mounting shell 6 by screws, a second impeller 603 is provided in the mounting shell 6 at the connecting pipe 505, a transmission shaft 6031 is passed through the center of the second impeller 603, a generator 606 is installed on the upper surface of the top cover 605 by screws, the shaft end of the generator 606 passes through the top cover 605 and is flange-connected with the transmission shaft 6031, a battery 602 is provided inside the mounting shell 6 at the protective shell 501, and a partition 601 is fixed inside the mounting shell 6 between the transmission shaft 6031 and the battery 602, the generator 606 is electrically connected to the battery 602 through a wire, and a guide pipe 604 is provided on a side of the mounting shell 6 away from the connecting pipe 505, the guide pipe 604 and the axis of the connecting pipe 505 are on the same horizontal line, and the guide pipe 604 is connected to the planting area.

[0027] When the pressure in the chamber 105 is greater than the supporting force of the supporting spring 504, the rubber plug 5032 in the pressure relief pipe 107 will be pushed, and the rubber plug 5032 will push the movable plate 503 to move, so that the movable plate 503 moves along the guide rod 502 and squeezes the supporting spring 504. At this time, the carbon dioxide gas will enter the protective shell 501 from the pressure relief pipe 107 and enter the installation shell 6 from the connecting pipe 505. The flow of carbon dioxide gas will drive the second impeller 603 to rotate, and the second impeller 603 will drive the generator 606 through the transmission shaft 6031 to operate and generate electricity. The electricity is stored in the battery 602 through the wire to power the solenoid valve. At the same time, the carbon dioxide will be guided to the planting area through the guide pipe 604 for photosynthesis of the plants, and then the carbon dioxide will be purified, so that energy can be converted and stored, reducing energy waste, and having good environmental protection and economic benefits.

[0028] See also Figure 1-9 As shown, according to the above embodiment, a method for removing iron from a nickel-cobalt-manganese sulfuric acid solution is also provided, comprising the following steps: Step 1, solution reaction, the nickel-cobalt-manganese sulfuric acid solution and compressed air are mixed and heated through the mixer 102, and then sent into the iron removal reactor 1, and then the carbonate solution enters the iron removal reactor 1 through the carbonate solution feed pipe 103, and the mixed solution reacts with the carbonate solution, and carbon dioxide is generated during the reaction; Step 2, degassing, the air pump 301 works to send the carbon dioxide generated by the reaction into the variable diameter pipe 303 through the air guide pipe 302, because the flow of carbon dioxide gas will drive the first impeller 404 to rotate, through the shaft 405 and the connecting shaft 403, the worm 402 drives the worm wheel 4011 to rotate, and then the stirring rod 104 is controlled by the rotating vertical shaft 401 to stir, and at the same time, the flowing carbon dioxide is sent to the chamber 105 of the wall of the deironing reactor 1 through the exhaust pipe 304 and the air supply pipe 7 to achieve a heat preservation effect, and the solution is kept in the reactor for a certain reaction time under the action of the stirring force before it can flow to the deironing reactor through the overflow pipe 106; Step three, secondary utilization. With the entry of carbon dioxide, the pressure in the chamber 105 will increase until the rubber plug 5032 is pushed, causing the movable plate 503 to move along the guide rod 502 and squeeze the support spring 504. At this time, the carbon dioxide in the chamber 105 will enter the protective shell 501 through the pressure relief pipe 107, and enter the mounting shell 6 through the connecting pipe 505. The flow of gas drives the second impeller 603 to rotate, and the second impeller 603 drives the generator 606 to run through the transmission shaft 6031, converting the rotational force into electricity and storing it in the battery 602.

[0029] The working principle of the present invention is: When the nickel-cobalt-manganese sulfuric acid solution is subjected to iron removal, the staff starts the mixer 102 and the solenoid valve on the carbonate solution feed pipe 103 through the controller, and the nickel-cobalt-manganese sulfuric acid solution to be deironed is fed into the mixer 102 from the feed port of the deironing solution, and the compressed air enters the mixer 102 from the compressed air inlet. After being mixed in the mixing bin, the mixed air is fed into the deironing reactor 1 through the mixing feed pipe at the bottom and heated by the electric heating unit. At this time, the carbonate solution enters the deironing reactor 1 through the carbonate solution feed pipe 103, and the two solutions are mixed to react. At this time, the vacuum pump 301 is started by the controller, and the carbon dioxide gas generated in the deironing reactor 1 is extracted through the air guide pipe 302 and discharged into the reducing pipe 303. When the liquid enters the reducing pipe 303, the flow of gas will drive the first impeller 404 to rotate, the rotating first impeller 404 drives the shaft 405 to rotate, the shaft 405 drives the worm 402 to rotate through the connecting shaft 403, the worm 402 drives the meshing worm wheel 4011 to rotate, the worm wheel 4011 drives the vertical shaft 401 to rotate, the vertical shaft 401 drives the stirring rod 104 connected to the bottom end to rotate, the rotating stirring rod 104 drives the stirring blade 1041 to mix the two solutions, speed up the reaction speed, react for a certain time under the action of the stirring force, the solution flows to the aging reactor through the overflow pipe 106, and the carbon dioxide gas is sent into the wall chamber 105 of the iron removal reactor 1 under the action of the degassing component 3, which has a certain insulation effect; Then, as the amount of carbon dioxide gas entering the chamber 105 gradually increases, the pressure in the chamber will also increase. When the pressure in the chamber 105 is greater than the supporting force of the supporting spring 504, the rubber plug 5032 in the pressure relief pipe 107 will be pushed. The rubber plug 5032 pushes the movable plate 503 to move, so that the movable plate 503 moves along the guide rod 502 and squeezes the supporting spring 504. At this time, the carbon dioxide gas will enter the protective shell 501 from the pressure relief pipe 107 and enter the mounting shell 6 from the connecting pipe 505. The flow of carbon dioxide gas will drive the second impeller 603 to rotate, and the second impeller 603 will drive the generator 606 through the transmission shaft 6031 to run and generate electricity. The electricity is stored in the battery 602 through the wire to power the solenoid valve. At the same time, the carbon dioxide will be guided to the planting area through the guide pipe 604 for photosynthesis of the plants, thereby purifying the carbon dioxide.

[0030] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and are not limitations of the invention. The specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. After reading this specification, those skilled in the art can make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention. .

Claims

1. A deironing device for nickel-cobalt-manganese sulfuric acid solution, comprising a deironing reactor (1), a sealing cover (101), a protective shell (2), a degassing component (3), a transmission component (4), a pressure relief component (5) of a chamber (105), and a mounting shell (6), characterized in that The wall of the deironing reactor (1) is provided with a chamber (105), the sealing cover (101) is installed at the top opening of the deironing reactor (1), a stirring rod (104) is vertically provided in the deironing reactor (1), the protective shell (2) is arranged on the sealing cover (101), the degassing component (3) and the transmission component (4) are both arranged in the protective shell (2), the degassing component (3) is used to discharge carbon dioxide generated by the reaction from the deironing reactor (1), the degassing component (3) is connected to the chamber (105) through the air supply pipe (7), and the pressure relief component (5) is used to discharge the carbon dioxide in the chamber (105); The degassing component (3) comprises an air pump (301), the suction port of the air pump (301) is connected to an air guide pipe (302), the bottom end of the air guide pipe (302) passes through the sealing cover (101) and extends to the interior of the deironing reactor (1), the output port of the air pump (301) is connected to a reducing pipe (303), the other end of the reducing pipe (303) is connected to an exhaust pipe (304), the exhaust pipe (304) is connected to an air supply pipe (7), and the reducing pipe (303) is transmission-connected to the stirring rod (104) via a transmission component (4); A pressure relief pipe (107) is provided at the bottom of the outer wall of the iron removal reactor (1); the pressure relief assembly (5) comprises a protective shell (501); the pressure relief pipe (107) is connected to the protective shell (501); a movable plate (503) is provided in the protective shell (501); a rubber pad (5031) is bonded to one side of the movable plate (503) close to the pressure relief pipe (107); support springs (504) are provided at the four corners of the other side of the movable plate (503); and an outer wall on one side of the protective shell (501) is connected to the mounting shell (6) via a connecting pipe (505).

2. The iron removal device for nickel-cobalt-manganese sulfuric acid solution according to claim 1, characterized in that: The vacuum pump (301) is fixed to the top wall of the sealing cover (101) by means of screws; a sealing block (1011) is provided on the lower surface of the sealing cover (101) at the chamber (105); the diameter of the reducing pipe (303) is greater than the diameters of the air guide pipe (302) and the exhaust pipe (304); and the exhaust pipe (304) is flange-connected to the air supply pipe (7).

3. The iron removal device for nickel-cobalt-manganese sulfuric acid solution according to claim 1, characterized in that: The transmission assembly (4) comprises a sealing shell (406), the sealing shell (406) being mounted on the reducing pipe (303) by means of screws, the walls of the reducing pipe (303) and the sealing shell (406) being in contact with each other are provided with through grooves (8), a horizontal shaft (405) is rotatably mounted in the sealing shell (406), a first impeller (404) is fixedly sleeved on the shaft (405), and a blade on one side of the first impeller (404) passes through the through grooves (8) and is located in the reducing pipe (303).

4. The iron removal device for nickel-cobalt-manganese sulfuric acid solution according to claim 3, characterized in that: The top end of the stirring rod (104) passes through the sealing cover (101) and is located in the protective shell (2); the top end of the stirring rod (104) is connected to a vertical shaft (401) via a flange; a worm wheel (4011) is fixedly sleeved on the outer wall of the vertical shaft (401); a tooth surface on one side of the worm wheel (4011) is meshingly connected to a worm (402); connecting shafts (403) are fixed at both ends of the worm (402); one end of the shaft (405) passes through the side wall of the sealing shell (406) and is flange-connected to one connecting shaft (403); and the other connecting shaft (403) is rotatably connected to the inner wall of the protective shell (2).

5. The iron removal device for nickel-cobalt-manganese sulfuric acid solution according to claim 1, characterized in that: Horizontal guide rods (502) are fixed at the four corners in the protective shell (501), the four guide rods (502) penetrate the movable plate (503), the movable plate (503) is slidably connected to the contact parts of the four guide rods (502), and the four support springs (504) are sleeved on the guide rods (502).

6. The iron removal device for nickel-cobalt-manganese sulfuric acid solution according to claim 5, characterized in that: Both ends of the four support springs (504) are fixedly connected to the outer wall of the movable plate (503) and the inner wall of the protective shell (501), and a rubber plug (5032) is integrally provided at the center of a side of the rubber pad (5031) away from the support spring (504), and the rubber plug (5032) matches the inner wall of the pressure relief pipe (107).

7. The iron removal device for nickel-cobalt-manganese sulfuric acid solution according to claim 1, characterized in that: The mounting shell (6) is arranged in an L-shape, a top cover (605) is mounted on the top of the mounting shell (6) by means of screws, a second impeller (603) is arranged inside the mounting shell (6) at the connecting pipe (505), a transmission shaft (6031) is passed through the center of the second impeller (603), a generator (606) is mounted on the upper surface of the top cover (605) by means of screws, an axial end of the generator (606) passes through the top cover (605) and is flange-connected to the transmission shaft (6031), a battery (602) is arranged inside the mounting shell (6) at the protective shell (501), and a partition (601) is fixed inside the mounting shell (6) between the transmission shaft (6031) and the battery (602).

8. The iron removal device for nickel-cobalt-manganese sulfuric acid solution according to claim 7, characterized in that: The generator (606) is electrically connected to the storage battery (602) via a wire. A guide tube (604) is provided on a side of the mounting shell (6) away from the connecting tube (505). The axes of the guide tube (604) and the connecting tube (505) are on the same horizontal line. The guide tube (604) is connected to the planting area.

9. The iron removal device for nickel-cobalt-manganese sulfuric acid solution according to claim 1, characterized in that: A mixer (102) and a carbonate solution feed pipe (103) are respectively provided on both sides of the sealing cover (101); the pipes of the mixer (102) and the carbonate solution feed pipe (103) both penetrate the sealing cover (101) and extend into the deironing reactor (1); the outer wall of the stirring rod (104) is provided with two groups of stirring blades (1041); the top of the wall of the deironing reactor (1) is connected to an overflow pipe (106); the overflow pipe (106) is connected to the aging reactor; and electromagnetic valves are installed on the mixer (102) and the carbonate solution feed pipe (103).

10. A method for removing iron from a nickel-cobalt-manganese sulfuric acid solution according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1, solution reaction, the nickel-cobalt-manganese sulfuric acid solution and compressed air are mixed and heated through a mixer (102), and then fed into the iron removal reactor (1), and then the carbonate solution enters the iron removal reactor (1) through a carbonate solution feed pipe (103), and the mixed solution reacts with the carbonate solution, and carbon dioxide is generated during the reaction; Step 2, degassing, the air pump (301) works to send the carbon dioxide generated by the reaction into the variable diameter pipe (303) through the air guide pipe (302), and the flow of carbon dioxide gas drives the first impeller (404) to rotate, and the worm (402) drives the worm wheel (4011) to rotate through the shaft (405) and the connecting shaft (403), and then the stirring rod (104) is controlled by the rotating vertical shaft (401) to stir, and at the same time, the flowing carbon dioxide is sent to the chamber (105) of the wall of the iron removal reactor (1) through the exhaust pipe (304) and the air supply pipe (7) to achieve a heat preservation effect, and the solution is kept in the reactor for a certain reaction time under the action of the stirring force before it can flow to the deoxidation reactor through the overflow pipe (106); Step 3, secondary utilization. As carbon dioxide enters, the pressure in the chamber (105) increases until the rubber plug (5032) is pushed, causing the movable plate (503) to move along the guide rod (502) and squeeze the support spring (504). At this time, the carbon dioxide in the chamber (105) enters the protective shell (501) through the pressure relief pipe (107) and enters the installation shell (6) through the connecting pipe (505). The flow of gas drives the second impeller (603) to rotate. The second impeller (603) drives the generator (606) to operate through the transmission shaft (6031), and converts the rotational force into electricity and stores it in the battery (602).

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