Identification device and method for nickel-cobalt hydrometallurgy intermediate product

Abstract

The invention belongs to the technical field of nickel-cobalt wet-process identification, and discloses an identification device and method for nickel-cobalt wet-process smelting intermediate products, the identification device comprises a shell, a detection groove is formed in the surface of the shell, auxiliary strips are symmetrically installed on the upper portions of the two sides of the inner wall of the detection groove, and the auxiliary strips are triangular; the detection head, the lower pressing plate, the liquid medicine tank and the like are arranged, before detection, components of a sample are analyzed firstly, it is confirmed that the sample mainly contains nickel and cobalt elements, then sample particles are placed in the detection tank and leached out through water, and the detection result is more accurate. If the sample particles cannot be dissolved when the dissolvability is observed through the detection head, water is discharged, the pressing plate is pressed, a proper salt solution in the liquid medicine tank is injected into the detection tank, the sample particles are placed in the proper salt solution to be leached, and then the dissolvability is observed through the detection head again; and analyzing and judging according to different dissolution conditions of the sample in the water and the salt solution.

Description

Technical Field

[0001] The invention belongs to the technical field of nickel-cobalt hydrometallurgical identification, and in particular relates to an identification device and method for nickel-cobalt hydrometallurgical intermediate products. Background Art

[0002] In recent years, my country's new energy vehicle industry has developed rapidly, and the demand for nickel and cobalt resources, which are key raw materials for industrial development, has increased sharply. my country's nickel and cobalt resources are relatively scarce. Due to the mineral export control of major suppliers, the contradiction between resource supply and demand has become increasingly prominent. It is necessary to expand diversified resource supply channels by importing high-quality nickel and cobalt recycled materials. As a high-quality "urban mine" resource, waste lithium-ion batteries and recycled powder are rich in nickel and cobalt resources. They are important raw materials for processing and preparing recycled materials. However, waste lithium-ion battery recycled materials are often suspected of solid waste due to their sources and the presence of some harmful substances. The risk of control is relatively high. At the same time, the two belong to different tax numbers and need to be accurately identified, but the distinction between the two in terms of appearance and composition is low.

[0003] The method is based on the different solubility properties of nickel or (and) cobalt hydroxides, carbonates, basic carbonates, sulfates, sulfides and other hydrometallurgical intermediates and lithium-ion battery recycled materials and other nickel- and cobalt-containing materials, and proposes a method for identifying nickel and cobalt hydrometallurgical intermediates. Summary of the invention

[0004] The object of the present invention is to provide a device and method for identifying intermediate products of nickel-cobalt hydrometallurgy to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A device and method for identifying intermediate products of nickel-cobalt hydrometallurgy include a shell, a detection groove is provided on the surface of the shell, auxiliary strips are symmetrically installed on the upper parts of both sides of the inner wall of the detection groove, the auxiliary strips are triangular, and mounting holes are provided on the inclined surfaces of the auxiliary strips, a detection head is fixedly installed inside the mounting holes, isolation grooves are symmetrically provided on the bottom of the inner wall of the detection groove, a filter plate is fixedly provided on the upper part of the inner wall of the isolation groove, and a heating pipe is fixedly installed on the inner wall of one of the isolation grooves, a mounting groove is provided on the side wall of the shell, a three-way valve, a first one-way valve and an air pump are fixedly installed inside the mounting groove, the three-way valve is connected to the air pump through the first one-way valve, and one end of the three-way valve is connected to the other isolation groove where the heating pipe is not installed.

[0006] Preferably, two medicine tanks are symmetrically provided inside the shell, and the two medicine tanks are located on both sides of the detection tank, and the bottom of the inner wall of the two detection tanks is provided with an extrusion groove, and one side of the inner wall of the extrusion groove is provided with a drug delivery hole, and the drug delivery hole is used to connect the detection tank and the extrusion groove, and an atomizing nozzle is fixedly installed at one end of the drug delivery hole, a downward pressure rod is passed through the top of the medicine tank, the downward pressure rod is located above the extrusion groove, and a rubber sleeve is fixedly installed at one end of the downward pressure rod close to the extrusion groove, and a downward pressure plate is fixedly installed at one end of the downward pressure rod away from the medicine tank, and a spring is fixedly installed at the bottom of the lower pressure plate, the spring is wrapped around the outer periphery of the downward pressure rod, and one end of the spring is in contact with the surface of the shell.

[0007] Preferably, hydroxylamine hydrochloride solution and acid solution are respectively provided inside the two medicine tanks, and the extrusion grooves inside the two medicine tanks are staggered, and a counter is fixedly installed on the surface of the shell, and the counter is located above the medicine tank containing hydroxylamine hydrochloride solution, and the output end of the counter can contact the lower pressure plate.

[0008] Preferably, a sliding groove is provided on one side of the bottom of the auxiliary strip, a U-shaped sliding plate is slidably arranged inside the sliding groove, a rubber strip is fixedly installed on the side of the sliding plate close to the inner wall of the detection groove, the rubber strip is in close contact with the inner wall of the detection groove, a movable rod is fixedly installed between the inner walls of the sliding plates, and the sliding plates are used to control the opening and closing of the atomizing nozzle.

[0009] Preferably, the sliding groove and the two medicine grooves are located on the side of the auxiliary strip and the outer shell close to the heating tube, the filter plate is flush with the inner wall of the detection groove, the width of the sliding plate is greater than the width of the filter plate, and the sliding plate is used to control the opening and closing of the isolation groove on which the heating tube is installed.

[0010] Preferably, the two isolation grooves are connected via a second one-way valve, and the second one-way valve can only allow water to flow from the isolation groove where the heating pipe is installed to the isolation groove on the other side.

[0011] Preferably, auxiliary plates are symmetrically installed on the surface of the shell, the auxiliary plates are located on both sides of the detection slots, and a cover plate is rotatably arranged between the two detection slots, air holes are opened on the cover plate at equal intervals, and an activated carbon sponge is arranged on one side of the cover plate by Velcro.

[0012] Preferably, a placement groove is provided on a surface of one side of the activated carbon sponge close to the cover plate, and a calcium chloride desiccant is placed inside the placement groove.

[0013] The present invention also provides a method for identifying a nickel-cobalt hydrometallurgical intermediate product, which is used for identifying a nickel-cobalt hydrometallurgical intermediate product, and uses a nickel-cobalt hydrometallurgical intermediate product identification device as described in the claim, and the identification method comprises:

[0014] S1, confirm the elemental composition of the sample, including analytical testing, data verification, and acquisition through reliable channels.

[0015] S2, test the water solubility of the sample. If the sample cannot be dissolved in clean water, perform S3 analysis.

[0016] S3, test the solubility of the sample in hydroxylamine hydrochloride solution, observe the solubility according to the following optimized dissolution conditions, if it cannot be dissolved, perform the analysis of S4;

[0017] The solubility of the test sample in 10 g / L hydroxylamine hydrochloride solution was fully stirred at room temperature for 1 hour;

[0018] The solubility of the test sample in 30g / L hydroxylamine hydrochloride solution was fully stirred at 70℃ for half an hour;

[0019] The solubility of the test sample in 50g / L hydroxylamine hydrochloride solution was fully stirred at 70℃ for half an hour;

[0020] The solubility of the test sample in 70g / L hydroxylamine hydrochloride solution was fully stirred at 90℃ for half an hour;

[0021] S4, test the solubility of the sample in acid. If it can be dissolved, it indicates that the sample should be a nickel or cobalt hydrometallurgical intermediate such as nickel or cobalt sulfides and / or oxides. If not, it should be battery recycled material.

[0022] The present invention also provides a method for identifying a nickel-cobalt hydrometallurgical intermediate product, which is used for identifying a nickel-cobalt hydrometallurgical intermediate product, and uses a nickel-cobalt hydrometallurgical intermediate product identification device as described in the claim, and the identification method comprises:

[0023] Place the sample in the detection tank, pour a certain amount of clean water into it, close the cover plate, and observe whether there is a solution through the detection head;

[0024] When adding hydroxylamine hydrochloride solution, by pressing different lower pressing plates, a certain amount of hydroxylamine hydrochloride solution or acid solution is sprayed into the clean water in the detection tank through the atomizing nozzle, and the number of times the lower pressing plate is pressed is detected by the counter to determine the number of grams of hydroxylamine hydrochloride solution added, and the heating time and stirring time of the heating tube and the air pump are adjusted automatically according to the number of grams added, and then the detection head is used to observe whether the solution is formed;

[0025] After adjusting the three-way valve to discharge the waste water, the cover plate is opened to re-inject a certain amount of clean water, and then the opening and closing states of the two atomizing nozzles are adjusted by moving the sliding plate and covering the filter plate, the injection channel of the hydroxylamine hydrochloride solution is closed, and the injection channel of the acidic solution is opened;

[0026] When adding the acid solution, the lower pressing plate is pressed down to spray a certain amount of the acid solution onto the clean water in the detection tank through the atomizing nozzle, and the detection head is used to observe whether the solution exists;

[0027] The detection head is used to observe whether color diffusion occurs on the water surface to confirm whether the test sample is dissolved in water, hydroxylamine hydrochloride solution or acid solution, and the type of the sample is determined according to the dissolution of the sample in water, hydroxylamine hydrochloride solution or acid solution.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The present invention is provided with a detection head, a lower pressure plate and a medicine tank, etc. Before the detection, the sample components are first analyzed to confirm that they mainly contain nickel and cobalt elements. Then, the sample particles are placed in the detection tank and leached with water. The solubility is observed by the detection head. If it is not soluble, the subsequent steps are carried out to drain the water, press the lower pressure plate, inject a suitable salt solution in the medicine tank into the detection tank, and place the sample particles in a suitable salt solution for leaching. Then, the solubility is observed again by the detection head, and then the different solubility conditions of the sample in water and salt solution are used for analysis and judgment.

[0030] (2) The present invention is provided with a movable rod, a sliding plate and a filter plate. Before performing the fourth step, the movable rod can pull the sliding plate to make it slide inside the sliding groove, thereby closing the filter plate above the heating tube, so that the acidic liquid will not directly contact the heating rod, ensuring that the acidic liquid will not affect the actual use of the heating rod. At the same time, since the two extrusion grooves are staggered, only one of the two atomizing nozzles can be used normally under normal circumstances. By moving the sliding plate, the opening and closing states of the two atomizing nozzles can be adjusted to prevent the operator from adding the wrong solution due to mistake. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 is a cross-sectional view of the present invention;

[0033] Figure 3 This is an appearance diagram of the present invention;

[0034] Figure 4 This is an appearance diagram of the cover plate of the present invention;

[0035] Figure 5 This is an appearance diagram of the auxiliary strip of the present invention;

[0036] Figure 6 for Figure 1 A in the enlarged view;

[0037] Figure 7 for Figure 2 Enlarged view of point B in .

[0038] In the figure: 1. shell; 2. auxiliary strip; 3. lower pressure plate; 4. auxiliary plate; 5. cover plate; 6. activated carbon sponge; 7. lower pressure rod; 8. spring; 9. mounting slot; 10. air pump; 11. first one-way valve; 12. three-way valve; 13. movable rod; 14. sliding plate; 15. detection slot; 16. Velcro; 17. ventilation hole; 18. placement slot; 19. isolation slot; 20. second one-way valve; 21. medicine slot; 22. sliding slot; 23. rubber strip; 24. medicine delivery hole; 25. extrusion slot; 26. rubber sleeve; 27. filter plate; 28. heating tube; 29. ​​detection head; 30. mounting hole; 31. atomizing nozzle; 32. counter. DETAILED DESCRIPTION

[0039] 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 described embodiments 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.

[0040] See also Figure 1-Figure 3 and Figure 5-Figure 7As shown, the present invention provides the following technical solutions: an identification device and method for nickel-cobalt hydrometallurgical intermediates include a shell 1, a detection slot 15 is provided on the surface of the shell 1, auxiliary strips 2 are symmetrically installed on the upper parts of both sides of the inner wall of the detection slot 15, the auxiliary strips 2 are triangular, and a mounting hole 30 is provided on the inclined surface of the auxiliary strip 2, a detection head 29 is fixedly installed inside the mounting hole 30, isolation slots 19 are symmetrically provided on the bottom of the inner wall of the detection slot 15, a filter plate 27 is fixedly provided on the upper part of the inner wall of the isolation slot 19, and a heating pipe 28 is fixedly installed on the inner wall of one of the isolation slots 19, a mounting slot 9 is provided on the side wall of the shell 1, a three-way valve 12, a first one-way valve 11 and an air pump 10 are fixedly installed inside the mounting slot 9, the three-way valve 12 is connected to the air pump 10 through the first one-way valve 11, and one end of the three-way valve 12 is connected to another isolation slot 19 without the heating pipe 28 installed, and two medicine water slots 21 are symmetrically provided inside the shell 1, the two medicine water slots 21 are fixedly provided on the inner wall of the two isolation slots 19, and the three-way valve 12 is connected to the air pump 10 through the first one-way valve 11. The grooves 21 are located on both sides of the detection groove 15, and the bottom of the inner wall of the two detection grooves 15 is provided with an extrusion groove 25, and one side of the inner wall of the extrusion groove 25 is provided with a drug delivery hole 24, the drug delivery hole 24 is used to connect the detection groove 15 and the extrusion groove 25, and an atomizing nozzle 31 is fixedly installed at one end of the drug delivery hole 24, a pressing rod 7 is passed through the top of the medicine groove 21, the pressing rod 7 is located above the extrusion groove 25, and a rubber sleeve 26 is fixedly installed at one end of the pressing rod 7 close to the extrusion groove 25, and the pressing rod 7 is provided with a rubber sleeve 26. A lower pressing plate 3 is fixedly installed at one end away from the medicine tank 21, a spring 8 is fixedly installed at the bottom of the lower pressing plate 3, the spring 8 is wound around the periphery of the lower pressing rod 7, and one end of the spring 8 is in contact with the surface of the shell 1, the two medicine tanks 21 are respectively provided with hydroxylamine hydrochloride solution and acid solution, a counter 32 is fixedly installed on the surface of the shell 1, the counter 32 is located above the medicine tank 21 where the hydroxylamine hydrochloride solution is placed, and the output end of the counter 32 can be in contact with the lower pressing plate 3.

[0041] Through the above technical solution, the identification method includes the following steps:

[0042] 1. Confirm the elemental composition of the sample, including analytical testing, data verification, and reliable acquisition;

[0043] Second, test the water solubility of the sample. Place the sample in the detection tank 15, then pour clean water into the detection tank 15 simultaneously. After the sample is fully immersed in the clean water, the detection head 29 in the mounting hole 30 is used to detect in real time whether the sample is fully dissolved in the clean water, and observe the solubility of the sample. If the sample cannot be dissolved in the clean water, the third step of analysis is performed;

[0044] 3. By pressing the lower pressing plate 3 on one side, one end of the lower pressing plate 3 is embedded into the extrusion groove 25, and the rubber sleeve 26 is used to squeeze the medicine inside the extrusion groove 25 into the medicine delivery hole 24, so that the hydroxylamine hydrochloride solution is sprayed into the clean water inside the detection groove 15 through the atomizing nozzle 31. The spring 8 uses its own elasticity to push the lower pressing plate 3 to reset, and then start the air pump 10 and the heating tube 28. The air pump 10 injects the external air into the liquid in the detection groove 15 through the first one-way valve 11 and the three-way valve 12, and the sample particles are fully stirred by bubbles, while the heating tube 28 heats the hydroxylamine hydrochloride solution. At the same time, the bubbles generated when the heating tube 28 is heated can cooperate with the air pump 10 to mix the sample particles, ensuring that the sample particles can fully contact with the hydroxylamine hydrochloride solution. After the mixing is completed, the detection head 29 detects whether the sample particles are dissolved in the hydroxylamine hydrochloride solution. If they cannot be dissolved, they enter the fourth cloth for further detection;

[0045] In addition, before heating and mixing, the concentration of the added hydroxylamine hydrochloride solution, the heating temperature and the stirring time can be adjusted according to the data check in the first step to ensure the accuracy of the detection. At the same time, since ten grams of hydroxylamine hydrochloride solution can be sprayed out each time the pressing plate 3 is pressed, the installed counter 32 can be used to detect the number of pressing times, and the heating temperature and the stirring time can be automatically adjusted according to the different concentrations of the added hydroxylamine hydrochloride solution, so that the device can perform the following four standard tests according to different test samples:

[0046] The solubility of the test sample in 10g / L hydroxylamine hydrochloride solution was fully stirred for 1 hour at room temperature;

[0047] The solubility of the test sample in 30g / L hydroxylamine hydrochloride solution was fully stirred at 70℃ for half an hour;

[0048] The solubility of the test sample in 50g / L hydroxylamine hydrochloride solution was fully stirred at 70℃ for half an hour;

[0049] The solubility of the test sample in 70g / L hydroxylamine hydrochloride solution was fully stirred at 90℃ for half an hour;

[0050] 4. Before proceeding to the fourth step, the three-way valve 12 can be adjusted to discharge the hydroxylamine hydrochloride solution in the detection tank 15, and then re-inject clean water, and press the lower pressure plate 3 on the other side to squeeze the acidic solution so that it is also injected into the clean water through the atomizing nozzle 31. The dissolution of the sample particles is observed in real time by observing the detection head 29. If it can be dissolved, it indicates that the sample should be a nickel and cobalt hydrometallurgical intermediate such as nickel and cobalt sulfides and (or) oxides. If not, it should be battery recycled material.

[0051] Furthermore, the extrusion grooves 25 inside the two medicine grooves 21 are staggered, a sliding groove 22 is opened on one side of the bottom of the auxiliary strip 2, a U-shaped sliding plate 14 is slidably arranged inside the sliding groove 22, a rubber strip 23 is fixedly installed on one side of the sliding plate 14 close to the inner wall of the detection groove 15, the rubber strip 23 is in close contact with the inner wall of the detection groove 15, a movable rod 13 is fixedly installed between the inner walls of the sliding plate 14, and the sliding plate 14 is used to control the opening and closing of the atomizing nozzle 31, the sliding groove 22 and the two medicine grooves 21 are all on one side of the auxiliary strip 2 and the outer shell 1 close to the heating tube 28, the filter plate 27 is flush with the inner wall of the detection groove 15, the width of the sliding plate 14 is greater than the width of the filter plate 27, and the sliding plate 14 is used to control the opening and closing of the isolation groove 19 on which the heating tube 28 is installed.

[0052] Please refer to Figure 1-Figure 3 and Figure 5-Figure 7 Before the fourth step, the sliding plate 14 can be pulled by the movable rod 13 to slide inside the sliding groove 22 at the bottom of the auxiliary strip 2, thereby closing the filter plate 27 above the heating tube 28, so that the acidic liquid will not contact the heating tube 28, thereby ensuring that the acidic liquid will not affect the actual use of the heating tube 28. At the same time, due to the staggered arrangement of the two extrusion grooves 25, only one of the two atomizing nozzles 31 can be used normally under normal circumstances, and the other is in a closed state under the blocking of the rubber strip 23. By moving the sliding plate 14, the opening and closing states of the two atomizing nozzles 31 can be adjusted to prevent the operator from adding the wrong solution due to mistakes. At the same time, the setting of the movable rod 13 allows the detection personnel to pour the water based on the movable rod 13 when adding water, and cooperates with the lower pressure plate 3 to improve the concentration accuracy of the configured hydroxylamine hydrochloride solution to ensure the detection effect.

[0053] Furthermore, the two isolation grooves 19 are connected via a second one-way valve 20 , and the second one-way valve 20 can only allow water to flow from the isolation groove 19 installed with the heating pipe 28 to the isolation groove 19 on the other side.

[0054] Please refer to Figure 2 The flow direction of the water flow is controlled by installing a second one-way valve 20, so that when draining, the water inside the two isolation grooves 19 can be discharged, and at the same time, the acidic solution cannot directly contact the heating pipe 28, ensuring that the acidic solution will not flush the drain pipe and contact the heating pipe 28.

[0055] Furthermore, auxiliary plates 4 are symmetrically installed on the surface of the shell 1, and the auxiliary plates 4 are located on both sides of the detection slots 15, and a cover plate 5 is rotatably arranged between the two detection slots 15, and air holes 17 are opened on the cover plate 5 at equal intervals, and an activated carbon sponge 6 is adhered to one side of the cover plate 5 by Velcro 16, and a placement groove 18 is opened on the surface of the activated carbon sponge 6 on the side close to the cover plate 5, and a calcium chloride desiccant is placed inside the placement groove 18.

[0056] Please refer to Figure 1-Figure 4 During the third step of heating and mixing, nickel, cobalt sulfides and oxides react with the hydroxylamine hydrochloride solution to produce a large amount of ammonia. After heating, the ammonia gradually moves upward to contact the activated carbon sponge 6. After being adsorbed by the activated carbon sponge 6, it contacts the calcium chloride desiccant, thereby reducing the concentration of the ammonia and then being discharged to the outside through the air vent 17. This allows a large amount of ammonia accumulated in the upper part of the detection tank 15 during detection to be discharged to the outside after simple treatment. When the detection tank 15 is opened after the detection is completed, a large amount of ammonia will not rush directly to the face of the detection personnel, thereby causing harm to the detection personnel.

[0057] In addition, since the activated carbon sponge 6 is adhered to the cover plate 5 by the Velcro 16, the activated carbon sponge 6 can be directly torn off after long-term use and the calcium chloride desiccant in the placement groove 18 can be replaced.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for identifying intermediate products of nickel-cobalt hydrometallurgy, characterized in that The invention comprises a housing (1), a detection groove (15) is provided on the surface of the housing (1), auxiliary strips (2) are symmetrically mounted on the upper parts of both sides of the inner wall of the detection groove (15), the auxiliary strips (2) are triangular, and a mounting hole (30) is provided on the inclined surface of the auxiliary strip (2), a detection head (29) is fixedly mounted inside the mounting hole (30), an isolation groove (19) is symmetrically provided on the bottom of the inner wall of the detection groove (15), and a filter plate (27) is fixedly mounted on the upper part of the inner wall of the isolation groove (19) , and a heating pipe (28) is fixedly installed on the inner wall of one of the isolation grooves (19), and a mounting groove (9) is opened on the side wall of the shell (1), and a three-way valve (12), a first one-way valve (11) and an air pump (10) are fixedly installed inside the mounting groove (9), the three-way valve (12) is connected to the air pump (10) through the first one-way valve (11), and one end of the three-way valve (12) is connected to the other isolation groove (19) on which the heating pipe (28) is not installed.

2. The identification device for nickel-cobalt hydrometallurgical intermediate products according to claim 1, characterized in that Two medicine tanks (21) are symmetrically arranged inside the housing (1), the two medicine tanks (21) are located on both sides of the detection tank (15), and the bottom of the inner wall of the two detection tanks (15) is provided with an extrusion groove (25), and one side of the inner wall of the extrusion groove (25) is provided with a medicine delivery hole (24), the medicine delivery hole (24) is used to connect the detection tank (15) and the extrusion groove (25), and an atomizing nozzle (31) is fixedly installed at one end of the medicine delivery hole (24), the medicine tank (21) A lower pressure rod (7) is passed through the top of the lower pressure rod (7), the lower pressure rod (7) is located above the extrusion groove (25), and a rubber sleeve (26) is fixedly installed on one end of the lower pressure rod (7) close to the extrusion groove (25), and a lower pressure plate (3) is fixedly installed on one end of the lower pressure rod (7) away from the medicine tank (21), and a spring (8) is fixedly installed on the bottom of the lower pressure plate (3), the spring (8) is wound around the outer periphery of the lower pressure rod (7), and one end of the spring (8) is in contact with the surface of the outer shell (1).

3. The identification device for nickel-cobalt hydrometallurgical intermediate products according to claim 2, characterized in that : The two medicine tanks (21) are respectively provided with hydroxylamine hydrochloride solution and acid solution, and the extrusion grooves (25) inside the two medicine tanks (21) are staggered. A counter (32) is fixedly installed on the surface of the shell (1). The counter (32) is located above the medicine tanks (21) containing hydroxylamine hydrochloride solution, and the output end of the counter (32) can contact the lower pressing plate (3).

4. The identification device for nickel-cobalt hydrometallurgical intermediate products according to claim 3, characterized in that A sliding groove (22) is provided on one side of the bottom of the auxiliary strip (2), a U-shaped sliding plate (14) is slidably arranged inside the sliding groove (22), a rubber strip (23) is fixedly installed on one side of the sliding plate (14) close to the inner wall of the detection slot (15), the rubber strip (23) is in close contact with the inner wall of the detection slot (15), a movable rod (13) is fixedly installed between the inner walls of the sliding plate (14), and the sliding plate (14) is used to control the opening and closing of the atomizing nozzle (31).

5. The identification device for nickel-cobalt hydrometallurgical intermediate products according to claim 4, characterized in that The sliding groove (22) and the two medicine grooves (21) are located on the side of the auxiliary strip (2) and the housing (1) close to the heating tube (28); the filter plate (27) is flush with the inner wall of the detection groove (15); the width of the sliding plate (14) is greater than the width of the filter plate (27); and the sliding plate (14) is used to control the opening and closing of the isolation groove (19) on which the heating tube (28) is installed.

6. The identification device for nickel-cobalt hydrometallurgical intermediate products according to claim 5, characterized in that The two isolation grooves (19) are connected via a second one-way valve (20), and the second one-way valve (20) can only allow water to flow from the isolation groove (19) on which the heating pipe (28) is installed to the isolation groove (19) on the other side.

7. The identification device for nickel-cobalt hydrometallurgical intermediate products according to claim 6, characterized in that Auxiliary plates (4) are symmetrically mounted on the surface of the housing (1), the auxiliary plates (4) are located on both sides of the detection slots (15), and a cover plate (5) is rotatably arranged between the two detection slots (15), air holes (17) are arranged on the cover plate (5) at equal intervals, and an activated carbon sponge (6) is adhered to one side of the cover plate (5) by a Velcro (16).

8. The identification device for nickel-cobalt hydrometallurgical intermediate products according to claim 7, characterized in that A placement groove (18) is provided on a surface of one side of the activated carbon sponge (6) close to the cover plate (5), and a calcium chloride desiccant is placed inside the placement groove (18).

9. A method for identifying intermediate products of nickel-cobalt hydrometallurgy, comprising the following steps: S1, confirm the elemental composition of the sample, including analytical testing, data verification, and acquisition through reliable channels. S2, test the water solubility of the sample. If the sample cannot be dissolved in clean water, perform S3 analysis. S3, test the solubility of the sample in hydroxylamine hydrochloride solution, observe the solubility according to the following optimized dissolution conditions, if it cannot be dissolved, perform the analysis of S4; The solubility of the test sample in 10 g / L hydroxylamine hydrochloride solution was fully stirred at room temperature for 1 hour; The solubility of the test sample in 30g / L hydroxylamine hydrochloride solution was fully stirred at 70℃ for half an hour; The solubility of the test sample in 50g / L hydroxylamine hydrochloride solution was fully stirred at 70℃ for half an hour; The solubility of the test sample in 70 g / L hydroxylamine hydrochloride solution was fully stirred at 90°C for half an hour. S4, test the solubility of the sample in acid. If it can be dissolved, it indicates that the sample should be a nickel or cobalt hydrometallurgical intermediate such as nickel or cobalt sulfides and (or) oxides. If not, it should be battery recycled material.

10. A method for identifying an intermediate product of nickel-cobalt hydrometallurgy, using an identification device for an intermediate product of nickel-cobalt hydrometallurgy as claimed in claim 8, characterized in that: The following steps are involved: The sample is placed in the detection tank (15), and after a certain amount of clean water is poured in, the cover plate (5) is closed, and the solution is observed through the detection head (29); When adding hydroxylamine hydrochloride solution, by pressing different lower pressing plates (3), a certain amount of hydroxylamine hydrochloride solution or acid solution is sprayed into the clean water in the detection tank (15) through the atomizing nozzle (31); the number of times the lower pressing plate (3) is pressed is detected by the counter (32), the number of grams of hydroxylamine hydrochloride solution added is determined, and the heating time and stirring time of the heating tube (28) and the air pump (10) are adjusted according to the number of grams added, and then the detection head (29) is used to observe whether the solution is formed; After adjusting the three-way valve (12) to discharge the waste water, the cover plate (5) is opened to re-inject a certain amount of clean water, and then the opening and closing states of the two atomizing nozzles (31) are adjusted by moving the sliding plate (14), and the sliding plate (14) is covered on the filter plate (27), the injection channel of the hydroxylamine hydrochloride solution is closed, and the injection channel of the acidic solution is opened; When adding the acid solution, the lower pressing plate (3) is pressed down to allow a certain amount of the acid solution to be sprayed into the clean water in the detection tank (15) through the atomizing nozzle (31), and the detection head (29) is used to observe whether the solution exists; The detection head (29) is used to observe whether color diffusion occurs on the water surface to confirm whether the test sample is dissolved in water, hydroxylamine hydrochloride solution or acid solution, and the type of the sample is determined according to the dissolution of the sample in water, hydroxylamine hydrochloride solution or acid solution.

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