Copper grade testing method and copper grade testing electrolytic device

Abstract

The invention discloses a copper grade testing method and a copper grade testing electrolysis device, and relates to the technical field of copper electrolysis, wherein the copper grade testing method comprises the following steps: selecting a set weight of red mixed copper; placing the red mixed copper and a copper-free acidic solvent into an electrolysis device for electrolysis, wherein the electrolysis device comprises a barrel body, the barrel body is used to place the copper-free acidic solvent, an insoluble cathode part is detachably connected in the barrel body, a conductive cage is also connected in the barrel body through an anode part, the inside of the conductive cage is used to place the red mixed copper, the upper side wall of the conductive cage is set as a hollow part, the mesh of the hollow part is used to connect the inside of the conductive cage and the outside of the conductive cage, the anode part and the insoluble cathode part are respectively connected to the positive and negative poles of a power supply; the weight difference between the sum of the weight of the insoluble cathode part and the copper powder after the electrolysis is completed and the weight of the insoluble cathode part before the electrolysis is obtained; and the copper grade is calculated according to the set weight and the weight difference. The invention realizes high-precision testing of the copper grade of red mixed copper.

Description

Technical Field

[0001] The invention relates to the technical field of copper electrolysis, and in particular to a copper grade testing method and a copper grade testing electrolysis device. Background Art

[0002] Purple scrap copper is one of the more common recycled copper raw materials. The trading price of purple scrap copper is determined and settled based on its copper grade. The copper grade of purple scrap copper is also related to the material ratio for refining and purifying purple scrap copper in the furnace. Therefore, it is of great significance to test the copper grade of purple scrap copper.

[0003] The existing method for testing the copper grade of purple scrap copper is to first melt the purple scrap copper into ingots as samples, then use direct reading spectroscopy to test the copper content of the ingot samples, and calculate the copper grade of the purple scrap copper; but purple scrap copper generally contains copper-clad aluminum, copper-clad steel, aluminum wire, tinned round copper wire, wire and cable insulation, sand, quartz, engineering plastics and ash, etc. These impurities will cause a large number of holes and inclusions in the ingot samples melted from the purple scrap copper, making it difficult to find suitable measuring points during direct reading spectroscopy testing; secondly, the chemical composition of different layers of the ingot samples varies greatly, and the test results vary greatly; therefore, there is an urgent need for a method that can accurately test the copper grade of purple scrap copper. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that there is a lack of a method that can accurately test the copper grade of red mixed copper, thereby providing a copper grade testing method and a copper grade testing electrolysis device.

[0005] A copper grade testing method provided according to a first aspect of the present invention comprises the following steps:

[0006] S1, select the set weight of red copper;

[0007] S2, placing the purple scrap copper and the copper-free acidic solvent into an electrolysis device for electrolysis, wherein the electrolysis device comprises a barrel body, wherein the barrel body is used to place the copper-free acidic solvent, wherein an insoluble cathode member is detachably connected to the barrel body, wherein a conductive cage is further connected to the barrel body via an anode member, wherein the interior of the conductive cage is used to place the purple scrap copper, wherein the conductive cage is provided with a hollow portion along the vertical upper side wall, wherein the mesh of the hollow portion is used to connect the interior of the conductive cage with the exterior of the conductive cage, wherein the anode member and the insoluble cathode member are respectively connected to the positive and negative electrodes of a power source;

[0008] S3, obtaining the weight difference between the sum of the weights of the insoluble cathode member and the copper powder after the electrolysis is completed and the weight of the insoluble cathode member before the electrolysis;

[0009] S4, calculating the copper grade according to the set weight and the weight difference.

[0010] A copper grade testing method according to the present invention has at least the following technical effects:

[0011] An insoluble cathode is detachably connected to the barrel body, and a conductive cage is connected to the barrel body through an anode. When testing the copper grade of the red copper scrap, firstly, a set weight of the red copper scrap is weighed and put into the conductive cage, and the weight of the insoluble cathode is weighed before the insoluble cathode is plugged into the barrel body; then, an acidic solvent that does not contain copper is added into the barrel body, and the acidic solvent that does not contain copper enters the conductive cage and reacts with the copper element in the red copper scrap to obtain an electrolyte containing copper ions, and then the power supply is started for electrolysis, and at this time, the copper ions in the electrolyte obtain electrons near the insoluble cathode to form copper element. As a result, all the copper elements in the purple scrap copper react with the copper-free acidic solvent to become copper ions, and the copper ions obtain electrons near the insoluble cathode piece through electrolysis to become copper foil attached to the insoluble cathode piece and copper powder precipitated at the bottom of the barrel body; because the copper ions in the electrolyte used in the electrolysis process are all copper ions obtained by the reaction of the copper elements in the purple scrap copper, and there are no copper ions from other sources, the total amount of copper foil attached to the insoluble cathode piece and the copper powder precipitated at the bottom of the barrel body is actually the total amount of copper elements in the purple scrap copper, and the copper grade of the purple scrap copper can be accurately measured. At the same time, because no mesh is provided on the lower part of the conductive cage in the vertical direction, and the upper part of the conductive cage in the vertical direction is set as a hollow part, on the one hand, it is convenient for the electrolyte containing copper ions to flow through during the electrolysis process, so that the copper ions can fully obtain electrons near the insoluble cathode piece to become copper foil attached to the insoluble cathode piece and become copper powder precipitated at the bottom of the barrel body; on the other hand, the non-copper solid matter in the purple mixed copper is isolated in the conductive cage by the conductive cage, which effectively prevents the non-copper solid matter in the purple mixed copper from flowing out of the conductive cage with the solution and being mixed with the copper powder precipitated at the bottom of the barrel body and unable to be screened, thereby further improving the test accuracy of the copper grade of the purple mixed copper.

[0012] Preferably, the copper-free acidic solvent is a mixture of sulfuric acid and hydrogen peroxide.

[0013] According to a second aspect of the present invention, a copper grade testing electrolysis device is provided, which is used to implement the copper grade testing method provided in the first aspect, and the electrolysis device comprises:

[0014] Barrel;

[0015] An insoluble cathode member is detachably connected to the barrel;

[0016] A conductive cage is connected to the barrel body through an anode member, wherein the conductive cage is provided with a hollow portion along the vertical upper side wall, and the mesh of the hollow portion is used to connect the inside of the conductive cage with the outside of the conductive cage;

[0017] A power source, a positive electrode and a negative electrode are connected to the anode member and the insoluble cathode member respectively.

[0018] A copper grade testing electrolysis device according to the present invention has at least the following technical effects:

[0019] An insoluble cathode is detachably connected to the barrel body, and a conductive cage is connected to the barrel body through an anode. When testing the copper grade of the red copper scrap, firstly, a set weight of the red copper scrap is weighed and put into the conductive cage, and the weight of the insoluble cathode is weighed before the insoluble cathode is plugged into the barrel body; then, an acidic solvent that does not contain copper is added into the barrel body, and the acidic solvent that does not contain copper enters the conductive cage and reacts with the copper element in the red copper scrap to obtain an electrolyte containing copper ions, and then the power supply is started for electrolysis, and at this time, the copper ions in the electrolyte obtain electrons near the insoluble cathode to form copper element. As a result, all the copper elements in the purple scrap copper react with the copper-free acidic solvent to become copper ions, and the copper ions obtain electrons near the insoluble cathode piece through electrolysis to become copper foil attached to the insoluble cathode piece and copper powder precipitated at the bottom of the barrel body; because the copper ions in the electrolyte used in the electrolysis process are all copper ions obtained by the reaction of the copper elements in the purple scrap copper, and there are no copper ions from other sources, the total amount of copper foil attached to the insoluble cathode piece and the copper powder precipitated at the bottom of the barrel body is actually the total amount of copper elements in the purple scrap copper, and the copper grade of the purple scrap copper can be accurately measured. At the same time, because no mesh is provided on the lower part of the conductive cage in the vertical direction, and the upper part of the conductive cage in the vertical direction is set as a hollow part, on the one hand, it is convenient for the electrolyte containing copper ions to flow through during the electrolysis process, so that the copper ions can fully obtain electrons near the insoluble cathode piece to become copper foil attached to the insoluble cathode piece and become copper powder precipitated at the bottom of the barrel body; on the other hand, the non-copper solid matter in the purple mixed copper is isolated in the conductive cage by the conductive cage, which effectively prevents the non-copper solid matter in the purple mixed copper from flowing out of the conductive cage with the solution and being mixed with the copper powder precipitated at the bottom of the barrel body and unable to be screened, thereby further improving the test accuracy of the copper grade of the purple mixed copper.

[0020] Preferably, a motor is further included, and an insulating portion is provided at the upper end of the anode member in the vertical direction, and the insulating portion is detachably connected to the output end of the motor.

[0021] Preferably, the insulating part is recessed with a mounting groove along the vertical upper end surface, and the output end of the motor is embedded in the mounting groove; a first through hole is formed through the insulating part in the horizontal direction, the horizontal direction is perpendicular to the vertical direction, the first through hole is connected to the mounting groove, and the output end of the motor is provided with a second through hole at the position corresponding to the first through hole; when the insulating part is connected to the output end of the motor, the first through hole and the second through hole are aligned, and a first pin is plugged in.

[0022] Preferably, the conductive cage is detachably connected to the anode member; the conductive cage comprises a plurality of conductive layers which are detachably stacked in sequence along the vertical direction, and the upper side wall of each conductive layer along the vertical direction is arranged as the hollow portion.

[0023] Preferably, a reserved tube is vertically penetrated through the inner bottom wall of each conductive layer, and the inner hole of the reserved tube is for the anode component to movably pass through; the reserved tube located at the bottom is horizontally penetrated through the vertical lower side wall to form a third through hole, and a fourth through hole is arranged on the anode component at a position corresponding to the third through hole; when the conductive cage is connected to the anode component, the third through hole is aligned with the fourth through hole, and a second pin is plugged in.

[0024] Preferably, the lower end surface of the reserved tube in the vertical direction is provided with a first protrusion, and the upper end surface of the reserved tube in the vertical direction is provided with a first groove matching the first protrusion; when two adjacent conductive layers are stacked together, the first protrusion of the upper reserved tube can be detachably inserted into the first groove of the lower reserved tube;

[0025] And / or, the conductive layer is provided with a second protrusion on its lower end surface in the vertical direction, and the conductive layer is provided with a second groove matching the second protrusion on its upper end surface in the vertical direction; when two adjacent conductive layers are stacked together, the second protrusion of the conductive layer located on the upper side can be detachably inserted into the second groove of the conductive layer located on the lower side;

[0026] And / or, the connection between the reserved tube and the inner bottom wall of the conductive layer has a smooth transition.

[0027] Preferably, a removable cover at the upper opening of the barrel body in the vertical direction is provided with an inverted dome, and a through hole is formed vertically through the middle of the inverted dome, and the through hole is used for the anode member to movably pass through.

[0028] Preferably, an annular platform is concentrically arranged on the inner bottom wall of the barrel body, and an annular groove is concavely arranged along the vertical upper end surface of the annular platform; the insoluble cathode member is detachably inserted into the annular groove.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure of a copper grade testing electrolysis device of this embodiment;

[0032] Figure 2 for Figure 1 Schematic diagram of the decomposition structure;

[0033] Figure 3 This is a schematic diagram of the exploded structure of a conductive cage in a copper grade testing electrolysis device of this embodiment;

[0034] Figure 4 This is a schematic diagram of the structure of a conductive layer in a copper grade testing electrolysis device of this embodiment;

[0035] Figure 5 It is a schematic diagram of a partial cross-sectional structure of the assembly of a barrel body and an insoluble cathode member in a copper grade testing electrolysis device of this embodiment;

[0036] Figure 6 for Figure 5 A magnified schematic diagram of center A.

[0037] Description of reference numerals:

[0038] 1-barrel body, 11-annular platform, 111-annular slot, 112-water supply channel;

[0039] 2- insoluble cathode piece;

[0040] 3-anode member, 31-insulating portion, 32-first plug;

[0041] 4-conductive cage, 41-conductive layer, 411-hollow portion, 412-mesh, 42-reserved tube, 421-inner hole, 43-second latch;

[0042] 5- Motor;

[0043] 6-Inverted dome. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0045] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0048] Embodiment 1

[0049] like Figures 1 to 6 A copper grade testing method provided in this embodiment is shown, comprising the following steps:

[0050] S1, select the red copper with set weight m1;

[0051] S2, putting the purple mixed copper and the copper-free acidic solvent into an electrolysis device for electrolysis, wherein the electrolysis device comprises a barrel 1, wherein the barrel 1 is used for putting the copper-free acidic solvent, wherein an insoluble cathode member 2 is detachably connected to the barrel 1, wherein the barrel 1 is further connected to a conductive cage 4 via an anode member 3, wherein the interior of the conductive cage 4 is used for placing the purple mixed copper, wherein the conductive cage 4 is provided with a hollow portion 411 along the vertical upper side wall, wherein the mesh 412 of the hollow portion 411 is used for connecting the interior of the conductive cage 4 with the exterior of the conductive cage 4, wherein the anode member 3 and the insoluble cathode member 2 are respectively connected to the positive and negative electrodes of a power source; specifically, before the insoluble cathode member 2 is plugged into the barrel 1, the conductive cage 4 is weighed. The weight of the insoluble cathode member 2 is m2, and after the insoluble cathode member 2 is plugged into the barrel body 1 and the purple mixed copper with a set weight of m1 is placed inside the conductive cage 4, an acidic solvent that does not contain copper is added into the barrel body 1, and the temperature is controlled to be 40°C to 50°C. When the solution turns blue, the power supply is started for electrolysis; when the color of the solution becomes lighter, the current of the power supply is reduced, and the power supply is turned off after electrolysis until the solution is clear; the insoluble cathode member 2 with copper foil is taken out and washed with clean water, and the washed copper powder is collected; the solution in the barrel body 1 is filtered to collect the copper powder; the insoluble cathode member 2 with copper foil and all the copper powder are dried at low temperature, and weighed to obtain the sum of the weight of the insoluble cathode member 2 and the copper powder after the electrolysis is completed, m3;

[0052] S3, obtaining a weight difference Δm between the sum of the weights m3 of the insoluble cathode member 2 and the copper powder after the electrolysis is completed and the weight m2 of the insoluble cathode member 2 before the electrolysis;

[0053] S4, calculating the copper grade according to the set weight m1 and the weight difference Δm.

[0054] The copper grade testing method of this embodiment is that an insoluble cathode 2 is detachably connected in the barrel body 1, and a conductive cage 4 is connected in the barrel body 1 through an anode 3. When testing the copper grade of the red mixed copper, firstly, the red mixed copper of a set weight m1 is weighed and put into the conductive cage 4, and the weight m2 of the insoluble cathode 2 is weighed before the insoluble cathode 2 is inserted into the barrel body 1; then, an acidic solvent not containing copper is added into the barrel body 1, and the acidic solvent not containing copper enters the conductive cage 4 and reacts with the copper element in the red mixed copper to obtain an electrolyte containing copper ions, and then the power supply is started for electrolysis, and at this time, the copper ions in the electrolyte will be near the insoluble cathode 2. The copper elements in the purple scrap copper are all reacted with the copper-free acidic solvent to form copper ions, and the copper ions are electrolyzed near the insoluble cathode member 2 to form copper foil attached to the insoluble cathode member 2 and copper powder precipitated at the bottom of the barrel 1. Because the copper ions in the electrolyte used in the electrolysis process are all copper ions obtained by the reaction of the copper elements in the purple scrap copper, and there are no copper ions from other sources, the total amount of copper foil attached to the insoluble cathode member 2 and the copper powder precipitated at the bottom of the barrel 1 is actually the total amount of copper elements in the purple scrap copper, and the copper grade of the purple scrap copper can be accurately measured. At the same time, because the mesh 412 is not provided on the lower part of the conductive cage 4 in the vertical direction, and the upper part of the conductive cage 4 in the vertical direction is set as a hollow part 411, on the one hand, it is convenient for the electrolyte containing copper ions to flow through during the electrolysis process, so that the copper ions can fully obtain electrons near the insoluble cathode member 2 to become copper foil attached to the insoluble cathode member 2 and become copper powder precipitated at the bottom of the barrel body 1; on the other hand, the non-copper solid matter in the purple mixed copper is isolated in the conductive cage 4 by the conductive cage 4, which effectively prevents the non-copper solid matter in the purple mixed copper from flowing out of the conductive cage 4 with the solution and being mixed with the copper powder precipitated at the bottom of the barrel body 1 and unable to be screened, thereby further improving the test accuracy of the copper grade of the purple mixed copper.

[0055] It is understood that the vertical and horizontal directions mentioned herein refer to Figure 1 The vertical and horizontal directions in the image are perpendicular to each other.

[0056] The copper grade testing method of this embodiment uses the following formula to calculate the copper grade W of red mixed copper:

[0057]

[0058] It should be noted that, in the test method of this embodiment, the power supply is started for electrolysis after the solution is observed to be blue, which can ensure that the electrolysis is carried out only after the copper-free acidic solvent reacts with at least part of the copper element in the purple mixed copper to obtain an electrolyte containing copper ions; and the power supply is turned off to stop the electrolysis after the solution is observed to be completely clarified, ensuring that all the copper element in the purple mixed copper reacts with the copper-free acidic solvent to become copper ions, and that the copper ions basically all obtain electrons through electrolysis near the insoluble cathode member 2 to become copper foil attached to the insoluble cathode member 2 and copper powder precipitated at the bottom of the barrel 1; thereby ensuring the test accuracy of the copper grade of the purple mixed copper.

[0059] Optionally, the copper-free acidic solvent is set to a mixture of sulfuric acid and hydrogen peroxide. Compared with only using sulfuric acid solution to react with copper element to form copper sulfate solution, the test method of this embodiment adds hydrogen peroxide as an oxidant, which can avoid the generation of sulfur dioxide in the process of forming copper sulfate solution by reaction, thereby avoiding environmental pollution; on the other hand, it can reduce the conditions for the reaction between sulfuric acid solution and copper element in the purple copper, which is more conducive to fully reacting the copper element in the purple copper to become copper ions, thereby improving the test accuracy of the copper grade of the purple copper.

[0060] Optionally, the copper-free acidic solvent also includes a sodium sulfate solution, which is added to the barrel 1 before starting the power supply for electrolysis to increase the ion concentration of the electrolyte, improve the conductivity, and thus improve the current efficiency; so that the copper ions can more easily obtain electrons near the insoluble cathode member 2 to become copper foil attached to the insoluble cathode member 2 and copper powder precipitated at the bottom of the barrel 1, so that the copper ions can react more fully to become copper foil attached to the insoluble cathode member 2 and copper powder precipitated at the bottom of the barrel 1, thereby improving the test accuracy of the copper grade of purple mixed copper.

[0061] It is understandable that this embodiment uses red scrap copper containing waste copper foil as the test object.

[0062] Embodiment 2

[0063] like Figures 1 to 3 The figure shows a copper grade testing electrolytic device provided in the present embodiment, which is used to implement the copper grade testing method described in the first embodiment. The electrolytic device comprises a barrel body 1, an insoluble cathode member 2, a conductive cage 4 and a power supply; the insoluble cathode member 2 is detachably connected to the barrel body 1, the conductive cage 4 is connected to the barrel body 1 through the anode member 3, the conductive cage 4 is provided with a hollow portion 411 along the vertical upper side wall, and the mesh 412 of the hollow portion 411 is used to connect the inside of the conductive cage 4 and the outside of the conductive cage 4; the positive and negative electrodes of the power supply are respectively connected to the anode member 3 and the insoluble cathode member 2.

[0064] The copper grade testing electrolysis device of this embodiment is provided with an insoluble cathode member 2 detachably connected in a barrel body 1, and a conductive cage 4 is connected in the barrel body 1 through an anode member 3. When testing the copper grade of the red scrap copper, firstly, a set weight of the red scrap copper is weighed and put into the conductive cage 4, and the weight of the insoluble cathode member 2 is weighed before the insoluble cathode member 2 is plugged into the barrel body 1; then, an acidic solvent not containing copper is added into the barrel body 1, and the acidic solvent not containing copper enters the conductive cage 4 and reacts with the copper element in the red scrap copper to obtain an electrolyte containing copper ions, and then the power supply is started for electrolysis, at which time the copper ions in the electrolyte will be near the insoluble cathode member 2. Electrons are obtained to form copper elements, so that all the copper elements in the purple scrap copper react with the copper-free acidic solvent to become copper ions, and the copper ions obtain electrons near the insoluble cathode piece 2 through electrolysis to become copper foil attached to the insoluble cathode piece 2 and copper powder precipitated at the bottom of the barrel 1; because the copper ions in the electrolyte used in the electrolysis process are all copper ions obtained by the reaction of the copper elements in the purple scrap copper, and there are no copper ions from other sources, the total amount of copper foil attached to the insoluble cathode piece 2 and the copper powder precipitated at the bottom of the barrel 1 is actually the total amount of copper elements in the purple scrap copper, and thus the copper grade of the purple scrap copper can be accurately measured. At the same time, because the mesh 412 is not provided on the lower part of the conductive cage 4 in the vertical direction, and the upper part of the conductive cage 4 in the vertical direction is set as a hollow part 411, on the one hand, it is convenient for the electrolyte containing copper ions to flow through during the electrolysis process, so that the copper ions can fully obtain electrons near the insoluble cathode member 2 to become copper foil attached to the insoluble cathode member 2 and become copper powder precipitated at the bottom of the barrel body 1; on the other hand, the non-copper solid matter in the purple mixed copper is isolated in the conductive cage 4 by the conductive cage 4, which effectively prevents the non-copper solid matter in the purple mixed copper from flowing out of the conductive cage 4 with the solution and being mixed with the copper powder precipitated at the bottom of the barrel body 1 and unable to be screened, thereby further improving the test accuracy of the copper grade of the purple mixed copper.

[0065] Specifically, the conductive cage 4 is made of titanium alloy material, and the conductive cage 4 is connected with the anode member 3 to form a whole, and the whole is used as an anode during the electrolysis process. In order to further improve the acid corrosion resistance of the conductive cage 4, more specifically, the conductive cage 4 is made of titanium alloy with iridium plated on the surface.

[0066] like Figure 1 and Figure 2As shown, optionally, the electrolysis device further comprises a motor 5, and the anode member 3 is provided with an insulating portion 31 along the upper end in the vertical direction, and the insulating portion 31 is detachably connected to the output end of the motor 5. Because the acidic solvent containing no copper enters the conductive cage 4 and reacts with the copper element in the red mixed copper to obtain an electrolyte containing copper ions, and the concentration of copper ions in the conductive cage 4 is relatively high relative to other positions, the present embodiment connects the conductive cage 4 to the output end of the motor 5 through the anode member 3; therefore, in the process of starting the power supply for electrolysis, the motor 5 can be started to drive the conductive cage 4 to rotate, so that the copper ions in the conductive cage 4 diffuse to the outside of the conductive cage 4 through the mesh 412 of the hollow portion 411 together with the solution under the action of centrifugal force, so that the copper ions fully obtain electrons near the insoluble cathode member 2 to become copper foil attached to the insoluble cathode member 2 and copper powder precipitated at the bottom of the barrel 1, further improving the test accuracy of the copper grade of the red mixed copper. At the same time, because the mesh 412 is not provided on the lower part of the conductive cage 4 in the vertical direction, the non-copper solid matter in the purple mixed copper placed at the bottom of the conductive cage 4 will not diffuse to the outside of the conductive cage 4 when the motor 5 drives the conductive cage 4 to rotate, so that the copper ions are quickly diffused to the outside of the conductive cage 4 while ensuring that the non-copper solid matter in the purple mixed copper will not flow out to the outside of the conductive cage 4 and be mixed with the copper powder precipitated at the bottom of the barrel 1. The anode member 3 is also connected to the output end of the motor 5 by adding an insulating portion 31 to ensure that the electricity is not conducted to the motor 5 to cause damage to the motor 5 during the process of starting the power supply for electrolysis.

[0067] Optionally, the insulating portion 31 is provided with a mounting groove along the vertical upper end surface, and the output end of the motor 5 is embedded in the mounting groove; a first through hole is formed through the insulating portion 31 in the horizontal direction, the first through hole is connected to the mounting groove, and a second through hole is provided at the output end of the motor 5 corresponding to the position of the first through hole; when the insulating portion 31 is connected to the output end of the motor 5, it is only necessary to embed the output end of the motor 5 into the mounting groove to a position where the first through hole and the second through hole are aligned, and then insert the first pin 32 through the first through hole and the second through hole; when the insulating portion 31 is removed from the output end of the motor 5, it is only necessary to pull the first pin 32 out of the first through hole and the second through hole; the entire disassembly and assembly process is easy to operate.

[0068] like Figures 2 to 4As shown, optionally, the conductive cage 4 is detachably connected to the anode member 3; the conductive cage 4 includes a plurality of conductive layers 41 which are detachably stacked in sequence along the vertical direction, preferably three conductive layers 41, and the upper side wall of each conductive layer 41 along the vertical direction is set as the hollow portion 411. Firstly, by detachably connecting the conductive cage 4 to the anode member 3, after the test is completed, the conductive cage 4 can be removed from the anode member 3 and the remaining impurities in the red mixed copper therein can be removed to avoid affecting the next copper grade test; secondly, by arranging the conductive cage 4 into a plurality of conductive layers 41 stacked in sequence, more red mixed copper can be placed in the conductive layers 41 at different heights, ensuring that more copper elements of the red mixed copper react with the copper-free acidic solvent at the same time to obtain an electrolyte containing copper ions, so that heavier red mixed copper can be used as the test object at a time, and more copper foil attached to the insoluble cathode member 2 and copper powder precipitated at the bottom of the barrel 1 can be electrolyzed, so that the weight difference △m can be obtained more accurately, thereby improving the test accuracy of the copper grade of the red mixed copper.

[0069] Optionally, a reserved tube 42 is vertically penetrated through the inner bottom wall of each conductive layer 41, and an inner hole 421 of the reserved tube 42 is provided for the anode member 3 to move through; a third through hole is formed through the vertical lower side wall of the reserved tube 42 at the bottom in the horizontal direction, and a fourth through hole is provided at a position corresponding to the third through hole on the anode member 3. Firstly, by adding the reserved tube 42, the contact area with the anode member 3 is increased, so that the anode member 3 can better drive the conductive cage 4 to rotate. Secondly, a third through hole is provided on the lower side wall extending from the lowest reserved tube 42 to the outside of the lowest conductive layer 41, and a fourth through hole is provided at a position corresponding to the third through hole on the lower side wall of the anode component 3; when the conductive cage 4 is connected to the anode component 3, the reserved tube 42 of the lowest conductive layer 41 is first inserted from top to bottom outside the anode component 3 until the third through hole is aligned with the fourth through hole, and then the second plug 43 is inserted through the third through hole and the fourth through hole, and then the remaining conductive layers 41 are stacked on the anode component 3 in sequence; when the conductive cage 4 is removed from the anode component 3, it is only necessary to pull out the second plug 43 from the third through hole and the fourth through hole; the entire disassembly and assembly process is easy to operate.

[0070] It should be noted that after the conductive cage 4 is connected to the anode member 3 , the insulating portion 31 is connected to the output end of the motor 5 ; before the conductive cage 4 is removed from the anode member 3 , the insulating portion 31 is first removed from the output end of the motor 5 .

[0071] Specifically, the cross-sectional area of ​​the inner hole 421 of the reserved tube 42 perpendicular to the vertical direction is set to be a polygon, so as to increase the contact area with the anode member 3 .

[0072] Specifically, the connection between the reserved tube 42 and the inner bottom wall of the conductive layer 41 is smoothly transitioned, which can prevent the remaining impurities in the red copper in the conductive cage 4 from accumulating at the connection between the reserved tube 42 and the inner bottom wall of the conductive layer 41 after the test is completed, thereby facilitating cleaning.

[0073] Optionally, the lower end face of the reserved tube 42 is provided with a first protrusion in the vertical direction, and the upper end face of the reserved tube 42 is provided with a first groove matching the first protrusion in the vertical direction; when two adjacent conductive layers 41 are stacked together, the first protrusion of the upper reserved tube 42 can be removably inserted into the first groove of the lower reserved tube 42. Through the interlocking and snapping action of the first protrusion and the first groove, on the one hand, the upper and lower end faces of the two adjacent conductive layers 41 are abutted against each other, so that the structure of the conductive cage 4 is more compact, and the space occupied by the conductive cage 4 in the vertical direction inside the barrel body 1 is reduced; on the other hand, the relative vertical movement of the two adjacent conductive layers 41 can be avoided during the process of the motor 5 driving the conductive cage 4 to rotate.

[0074] Optionally, the conductive layer 41 is provided with a second protrusion on the lower end surface in the vertical direction, and the conductive layer 41 is provided with a second groove matching the second protrusion on the upper end surface in the vertical direction; when two adjacent conductive layers 41 are stacked together, the second protrusion of the upper conductive layer 41 can be detachably inserted into the second groove of the lower conductive layer 41. Through the engagement and clamping action of the second protrusion and the second groove, the connection between the two adjacent conductive layers 41 is more tightly secured, and the relative vertical movement of the two adjacent conductive layers 41 can be more effectively avoided during the process of the motor 5 driving the conductive cage 4 to rotate.

[0075] like Figure 1 and Figure 2 As shown, optionally, the upper opening of the barrel body 1 is detachably covered with an inverted dome 6, and a perforation is formed in the middle of the inverted dome 6 along the vertical direction, and the perforation is used for the anode member 3 to move through. First, by providing the inverted dome 6 at the upper opening of the barrel body 1, on the one hand, the inverted dome 6 prevents the sulfuric acid vapor generated during the electrolysis process from escaping to the outside and causing pollution; on the other hand, the sulfuric acid vapor is cooled to form a liquid after contacting the inverted dome 6, and the downward arched shape of the inverted dome 6 is used to make the sulfuric acid vapor flow along the inverted dome 6 to the lower center of the inverted dome 6 after being cooled and liquefied, and fall back into the conductive cage 4 to react with the copper element in the purple copper, so that the copper element in the purple copper reacts more fully to form copper ions; secondly, by providing a perforation in the middle of the inverted dome 6, after the part of the anode member 3 connected to the conductive cage 4 is embedded in the barrel body 1, the upper end of the anode member 3 and the insulating part 31 pass through the perforation and are connected to the output end of the motor 5.

[0076] It should be noted that the inverted dome 6 is covered at the upper end opening of the barrel body 1 in the vertical direction by relying on its own gravity.

[0077] like Figure 5 and Figure 6 As shown, optionally, the inner bottom wall of the barrel body 1 is concentrically provided with an annular platform 11, and the annular platform 11 is concavely provided with an annular groove 111 along the vertical upper end surface; the insoluble cathode member 2 can be detachably inserted into the annular groove 111. In this way, the insoluble cathode member 2 can be detachably connected to different positions along the circumference of the barrel body 1 to meet different testing needs.

[0078] In order to facilitate the solution to flow in the annular groove 111, Figure 6 As shown, specifically, a water supply channel 112 is provided on the side wall of the annular platform 11 to connect the inside and the outside of the annular platform 11.

[0079] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A copper grade testing method, characterized in that: The following steps are involved: S1, select the set weight of red copper; S2, placing the purple mixed copper and the copper-free acidic solvent into an electrolysis device for electrolysis, the electrolysis device comprising a barrel (1) and a motor (5), the barrel (1) being used to place the copper-free acidic solvent, the barrel (1) being detachably connected with an insoluble cathode member (2), the barrel (1) being further connected with a conductive cage (4) via an anode member (3), the anode member (3) being provided with an insulating portion (31) along the vertical upper end, the insulating portion (31) being detachably connected to the output end of the motor (5), the conductive cage (4) being used to place the purple mixed copper, the conductive cage (4) being detachably connected to the output end of the motor (5), The conductive cage (4) comprises a plurality of conductive layers (41) which are detachably stacked in sequence along the vertical direction, the upper side wall of each conductive layer (41) along the vertical direction is provided with a hollow portion (411), and the lower portion of each conductive layer (41) along the vertical direction is not provided with mesh holes (412), and the mesh holes (412) of the hollow portion (411) are used to connect the inside of the conductive cage (4) and the outside of the conductive cage (4), and the anode member (3) and the insoluble cathode member (2) are respectively connected to the positive and negative electrodes of a power source; the solution in the barrel (1) is filtered to collect copper powder; S3, obtaining the weight difference between the sum of the weights of the insoluble cathode member (2) and the copper powder after the electrolysis is completed and the weight of the insoluble cathode member (2) before the electrolysis; S4, calculating the copper grade according to the set weight and the weight difference.

2. A copper grade testing method according to claim 1, characterized in that: The copper-free acidic solvent is a mixture of sulfuric acid and hydrogen peroxide.

3. A copper grade testing electrolysis device, used to implement the copper grade testing method according to claim 1 or 2, characterized in that: The electrolysis device comprises: Barrel (1); An insoluble cathode member (2) detachably connected to the barrel body (1); A conductive cage (4) is connected to the barrel (1) via an anode member (3); the conductive cage (4) is detachably connected to the anode member (3); the conductive cage (4) comprises a plurality of conductive layers (41) which are detachably stacked in sequence along the vertical direction, the upper side wall of each conductive layer (41) being provided with a hollow portion (411), the lower portion of each conductive layer (41) along the vertical direction being not provided with mesh holes (412), and the mesh holes (412) of the hollow portion (411) being used to connect the interior of the conductive cage (4) with the exterior of the conductive cage (4); A power source, wherein the positive electrode and the negative electrode are respectively connected to the anode member (3) and the insoluble cathode member (2); The motor (5) has an output end detachably connected to an insulating portion (31), wherein the insulating portion (31) is arranged at the upper end of the anode member (3) in the vertical direction.

4. A copper grade testing electrolysis device according to claim 3, characterized in that: The insulating portion (31) is provided with a mounting groove along the upper end surface in the vertical direction, and the output end of the motor (5) is embedded in the mounting groove; a first through hole is formed through the insulating portion (31) in the horizontal direction, the horizontal direction is perpendicular to the vertical direction, the first through hole is connected to the mounting groove, and the output end of the motor (5) is provided with a second through hole at a position corresponding to the first through hole; when the insulating portion (31) is connected to the output end of the motor (5), the first through hole and the second through hole are aligned, and a first plug pin (32) is provided for plugging.

5. The copper grade testing electrolysis device according to claim 3, characterized in that: A reserved tube (42) is vertically penetrated through the inner bottom wall of each conductive layer (41), and the inner hole (421) of the reserved tube (42) allows the anode component (3) to movably pass through; a third through hole is formed by penetrating the lower side wall of the reserved tube (42) located at the bottom in the vertical direction in the horizontal direction, and a fourth through hole is provided on the anode component (3) at a position corresponding to the third through hole; when the conductive cage (4) is connected to the anode component (3), the third through hole is aligned with the fourth through hole and is provided for the second plug pin (43) to be plugged in.

6. A copper grade testing electrolysis device according to claim 5, characterized in that: The reserved tube (42) is provided with a first protrusion along the vertical lower end surface, and the reserved tube (42) is provided with a first groove matching the first protrusion along the vertical upper end surface; when two adjacent conductive layers (41) are stacked together, the first protrusion of the reserved tube (42) located at the upper end can be detachably inserted into the first groove of the reserved tube (42) located at the lower end; And / or, the conductive layer (41) is provided with a second protrusion along the lower end surface in the vertical direction, and the conductive layer (41) is provided with a second groove matching the second protrusion along the upper end surface in the vertical direction; when two adjacent conductive layers (41) are stacked together, the second protrusion of the conductive layer (41) located at the upper side can be detachably inserted into the second groove of the conductive layer (41) located at the lower side; And / or, the connection between the reserved tube (42) and the inner bottom wall of the conductive layer (41) is smoothly transitioned.

7. A copper grade testing electrolysis device according to claim 3 or 4, characterized in that: The barrel body (1) is provided with an inverted dome (6) at a detachable cover at the upper end opening in the vertical direction, and a through hole is formed through the middle of the inverted dome (6) in the vertical direction, and the through hole is used for the anode member (3) to movably pass through.

8. The copper grade testing electrolysis device according to claim 3, characterized in that: An annular platform (11) is concentrically arranged on the inner bottom wall of the barrel body (1), and an annular groove (111) is concavely arranged along the vertical upper end surface of the annular platform (11); the insoluble cathode component (2) is detachably inserted into the annular groove (111).

Images