Copper oxide skin superfine pulverization and impurity removal integrated device

Abstract

This invention relates to the field of copper oxide scale treatment technology, specifically disclosing an integrated device for ultrafine grinding and impurity removal of copper oxide scale. The device includes a housing, a feeding bin, and an impurity collection bin; it also includes a grinding bin, a grinding mechanism located on the inner wall of the grinding bin, a separation mechanism located on the upper part of the inner wall of the grinding bin, and a detection mechanism located in both the grinding bin and the discharge pipe. This integrated device for ultrafine grinding and impurity removal of copper oxide scale uses the grinding mechanism to perform ultrafine grinding of the copper oxide scale particles entering the grinding bin, while the separation mechanism pre-classifies the copper oxide scale particles in the grinding bin. The detection mechanism detects the flow rate of fine copper oxide scale powder above the separation mechanism and inside the discharge pipe. The separation mechanism accelerates the airflow above, reducing the idling cycle of material in the "grinding → classification → reflux" process, preventing over-grinding of copper oxide scale particles, increasing the effective output rate, and reducing ineffective energy consumption.

Description

Technical Field

[0001] This invention relates to the field of copper oxide scale treatment technology, specifically to an integrated device for ultrafine pulverization and impurity removal of copper oxide scale. Background Technology

[0002] Copper oxide skin is a CuO / Cu2O composite layer formed by the oxidation of copper materials. It often contains impurities such as oil, mud, and metal inclusions. The copper oxide skin ultrafine grinding and impurity removal device is used to process the copper surface oxide layer (CuO / Cu2O composite layer) into micron-level ultrafine powder and simultaneously remove impurities (metal inclusions, non-metallic particles, etc.). It is widely used in copper recycling, electronic materials, catalysts and other fields.

[0003] In the process of processing copper oxide scale, the thick layer of copper oxide scale is first removed by shot blasting to complete the preliminary impurity removal; the pre-treated material is fed into the device, and after coarse crushing and fine crushing, it enters the air jet mill section; the air jet mill uses high-pressure air or nitrogen to form a supersonic airflow, which drives the copper oxide scale particles to collide, rub, and shear at high speed to achieve ultrafine crushing; after crushing, the powder enters the turbine classifier, the qualified fine powder enters the next process for deep impurity removal, the coarse particles are automatically returned to the mill for further crushing, and the ultrafine powder after deep impurity removal enters the collection bin for collection.

[0004] When the turbine classifier rotates at high speed, qualified fine powder particles are sucked into the interior for subsequent processes, while larger particles are intercepted and returned for further crushing. However, CuO and Cu2O are both ultrafine powders and polar oxides, and fine particles are prone to agglomeration, forming agglomerates with particle sizes exceeding the qualified particle size threshold. These agglomerates are mistakenly identified as coarse particles by the classifier and returned to the crushing chamber. After the agglomerates are broken, they form even finer single particles, resulting in over-grinding of the powder. Ultimately, this leads to a significant widening of the product particle size distribution, far exceeding the process requirements. At the same time, most of the material idles in the "crushing → classifying → returning" cycle, resulting in low effective output and increased production energy consumption. To address this, we propose an integrated device for ultrafine grinding and impurity removal of copper oxide sheets. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated device for ultrafine grinding and impurity removal of copper oxide sheets, in order to solve the problems mentioned in the background art, which cause powder to be over-grinded, resulting in a significant widening of the product particle size distribution, far exceeding the process requirements, and at the same time, most of the material is idle in the "grinding → grading → return" cycle, resulting in low effective output rate and increased production energy consumption.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated device for ultrafine grinding and impurity removal of copper oxide sheets, comprising a device shell and a feeding bin and an impurity removal and collection bin; it also includes a grinding bin, a feeding pipe connecting the grinding bin and the feeding bin, and a discharge pipe connecting the grinding bin and the impurity removal and collection bin; The crushing mechanism is located on the inner wall of the crushing chamber and crushes the particles that enter the inner wall of the crushing chamber. The separation mechanism is located on the upper part of the inner wall of the crushing chamber. The separation mechanism classifies the particle size in the crushing chamber and sends the qualified copper oxide fine powder into the discharge pipe. The testing mechanism is located in both the crushing chamber and the discharge pipe. It measures the flow rate of the copper oxide powder at multiple points and increases the separation force of the separation mechanism when the flow rate of the copper oxide powder decreases.

[0007] The crushing chamber has a conical bottom. The crushing mechanism includes multiple nozzles installed at the bottom of the crushing chamber. The nozzles are spaced apart. The end of each nozzle furthest from the crushing chamber is connected to an air inlet pipe. An air pump is installed on the surface of the device housing and is connected to the air inlet pipe. A classifying wheel is rotatably connected to the upper part of the inner wall of the crushing chamber. The classifying wheel is coaxially arranged with the feed pipe and is connected to the feed pipe. A drive motor is installed on the inner wall of the crushing chamber, and the output shaft of the drive motor is fixedly connected to the axis of the classifying wheel.

[0008] The separation mechanism includes a separation plate located below the classifying wheel. The surface of the separation plate has multiple connecting holes, and the inner wall of the connecting holes has a connecting component. Multiple nozzles are provided between the separation plate and the classifying wheel. The end of the nozzle away from the crushing chamber is connected to an air inlet pipe. An air pump is connected to the air inlet pipe. The inner wall of the nozzle is provided with an adjusting component to adjust the inner diameter of the nozzle.

[0009] The connecting component includes a connecting pipe fixedly connected to the inner wall of the connecting hole, a conical block fixedly connected to the top of the connecting pipe, a conical hole opened on the inner wall of the conical block, and multiple ceramic particles fixedly connected to the inner wall of the conical hole. The inner diameter of the top of the conical hole is the same as the size of the qualified fine powder.

[0010] The adjusting component includes a piston plate that is slidably and sealingly connected to the inner wall of the nozzle two. An armature is fixedly connected to the top of the piston plate, and a return spring is fixedly connected to the outside of the armature. The return spring is fixedly connected to the inner wall of the nozzle two. An electromagnet is installed on the inner wall of the nozzle two, and the electromagnet is located outside the armature.

[0011] The detection mechanism includes a bipolar conductivity probe located between the separation plate and the classifying wheel. The bipolar conductivity probe is fixedly connected to the inner wall of the crushing chamber. A controller is installed on the surface of the crushing chamber. The controller is connected to the bipolar conductivity probe and an electromagnet. The controller controls the current flow of the electromagnet. The inner wall of the discharge pipe is equipped with a detection element to detect the flow rate of fine copper oxide powder in the discharge pipe.

[0012] In this design, the two electrodes of the bipolar conductivity probe are located on the same circumferential cross-section.

[0013] The testing component includes a ceramic contact plate located on the inner wall of the discharge pipe. A mounting base is fixedly connected to the inner wall of the discharge pipe. The ceramic contact plate is slidably connected to the inner wall of the mounting base. An arc-shaped spring is installed on the inner wall of the mounting base. The convex end of the arc-shaped spring contacts the ceramic contact plate. An insulating push rod is fixedly connected to the concave end of the arc-shaped spring. A sliding rheostat is fixedly connected to the inner wall of the mounting base. The insulating push rod is fixedly connected to the slider of the sliding rheostat. The sliding rheostat is connected in series with an electromagnet.

[0014] The outer side of the separation plate is equipped with a vibrating element that drives the separation plate to vibrate. The vibrating element includes an armature two fixedly connected to the center of the bottom of the separation plate, a mounting frame fixedly connected to the inner wall of the crushing chamber, an electromagnet two fixedly connected to the side of the mounting frame near the armature two, and multiple spring plates fixedly connected to the bottom edge of the separation plate. The end of the spring plate away from the separation plate is fixedly connected to the inner wall of the crushing chamber.

[0015] The bottom of the mounting bracket has a tapered transition.

[0016] The present invention has at least the following beneficial effects: 1. In use, this application uses a crushing mechanism to perform ultra-fine crushing of copper oxide particles entering the crushing chamber, while a separation mechanism pre-classifies the copper oxide particles in the crushing chamber, separating them into large particles and qualified fine powder. The separation mechanism, in conjunction with the supersonic airflow generated by the crushing mechanism, crushes the large particles.

[0017] 2. The flow rate of fine copper oxide powder above the separation mechanism and inside the discharge pipe is detected by the set detection mechanism. When the fine powder content above the separation mechanism increases, but the fine powder flow rate inside the discharge pipe decreases, the separation mechanism accelerates the airflow velocity above, reduces the idling cycle of material in "crushing → grading → reflux", avoids over-crushing of copper oxide particles, improves the effective discharge rate, and reduces ineffective energy consumption. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the crushing chamber structure of the present invention; Figure 3 This is a side cross-sectional view of the crushing chamber of the present invention; Figure 4 This is a top view of the separation plate structure of the present invention; Figure 5 This is a schematic diagram of the main cross-sectional structure of the crushing chamber of the present invention; Figure 6 for Figure 5 Enlarged diagram of area A in the middle; Figure 7 This is a schematic diagram of the vibrating element structure of the present invention; Figure 8 This is a schematic diagram of the detection element structure of the present invention; Figure 9 This is a schematic diagram of the adjusting component structure of the present invention.

[0019] In the diagram: 1. Device housing; 2. Feed hopper; 3. Impurity collection hopper; 4. Crushing hopper; 5. Feed pipe; 6. Discharge pipe; 7. Crushing mechanism; 70. Nozzle 1; 71. Air inlet pipe 1; 72. Air pump; 73. Grading wheel; 74. Drive motor; 8. Separation mechanism; 80. Separation plate; 81. Connecting hole; 82. Connecting component; 83. Nozzle 2; 84. Air inlet pipe 2; 85. Adjusting component; 86. Connecting pipe; 87. Conical block; 88. Conical hole 89. Ceramic particles; 810. Piston plate; 811. Armature one; 812. Return spring; 813. Electromagnet one; 814. Vibrating component; 815. Armature two; 816. Mounting bracket; 817. Electromagnet two; 818. Spring plate; 9. Detection mechanism; 90. Bipolar conductivity probe; 91. Controller; 92. Detection component; 93. Ceramic contact plate; 94. Mounting base; 95. Arc-shaped spring; 96. Insulating push rod; 97. Sliding rheostat. Detailed Implementation

[0020] Example 1: Please refer to Figures 1 to 9 This invention provides a technical solution: an integrated device for ultrafine grinding and impurity removal of copper oxide sheets, comprising a device housing 1, a feeding bin 2, and an impurity removal and collection bin 3, the impurity removal and collection bin 3 having a built-in magnetic filter screen; it also includes a grinding bin 4, with a feeding pipe 5 connecting the grinding bin 4 and the feeding bin 2, and a discharge pipe 6 connecting the grinding bin 4 and the impurity removal and collection bin 3; a grinding mechanism 7, located on the inner wall of the grinding bin 4, which crushes the particles entering the inner wall of the grinding bin 4; a separation mechanism 8, located on the upper part of the inner wall of the grinding bin 4, which classifies the particle size in the grinding bin 4 and sends qualified copper oxide sheet fine powder into the discharge pipe 6; and a detection mechanism 9, located in both the grinding bin 4 and the discharge pipe 6, which detects the flow rate of the copper oxide sheet fine powder at multiple points and increases the separation force of the separation mechanism 8 when the flow rate of the copper oxide sheet fine powder decreases.

[0021] During operation, copper oxide scale material, after shot blasting to remove the thick oxide layer and preliminary impurity removal, is fed into the feed hopper 2. The screw feeder inside the feed hopper 2 pushes the material uniformly to the feed pipe 5 at a set flow rate. The material enters the crushing chamber 4 along the feed pipe 5, ensuring uniform feeding. The crushing mechanism 7 operates, driving the material particles in the crushing chamber 4 to collide, rub, and shear at high speed, achieving preliminary ultrafine crushing. The crushed powder rises with the airflow to the separation mechanism 8 area. The separation mechanism 8 pre-classifies the copper oxide scale particles in the crushing chamber 4, separating them into large particles and qualified fine powder. Furthermore, the separation mechanism 8 works in conjunction with the crushing mechanism 7 to produce… The supersonic airflow crushes large particles. The flow rate of fine copper oxide powder above the separation mechanism 8 and inside the discharge pipe 6 is detected by the detection mechanism 9. When the fine powder content above the separation mechanism 8 increases, but the fine powder flow rate inside the discharge pipe 6 decreases, the separation mechanism 8 accelerates the airflow velocity above to enhance the dispersing effect on agglomerates, reduce the idling cycle of materials in "crushing → grading → reflux", avoid over-crushing of copper oxide particles, improve the effective discharge rate, and reduce ineffective energy consumption. The qualified fine powder entering the impurity collection bin 3 is filtered by a magnetic filter to remove residual metal inclusions, and finally forms uniform CuO / Cu2O ultrafine powder.

[0022] The bottom of the crushing chamber 4 is conical. The crushing mechanism 7 includes multiple nozzles 70 installed at the bottom of the crushing chamber 4. The nozzles 70 are spaced apart. The end of the nozzles 70 away from the crushing chamber 4 is connected to an air inlet pipe 71. An air pump 72 is installed on the surface of the device housing 1. The air pump 72 is connected to the air inlet pipe 71. A classifying wheel 73 is rotatably connected to the upper part of the inner wall of the crushing chamber 4. The classifying wheel 73 is coaxially arranged with the feed pipe 5 and is connected to the feed pipe 5. A drive motor 74 is installed on the inner wall of the crushing chamber 4. The output shaft of the drive motor 74 is fixedly connected to the shaft of the classifying wheel 73.

[0023] During use, after the air pump 72 is started, the high-pressure air that has been dehydrated is sent into the nozzle 70 through the air inlet pipe 71. The nozzle 70 sprays to form a supersonic airflow, which drives the material particles in the crushing chamber 4 to collide, rub, and shear at high speed, achieving preliminary ultrafine crushing. The crushed powder rises with the airflow to the area of ​​the classifying wheel 73. The drive motor 74 drives the classifying wheel 73 to rotate at high speed, forming a centrifugal force field. The qualified fine powder overcomes the centrifugal force under the drag force of the airflow and enters the inner ring of the classifying wheel 73. It is then transported to the impurity collection bin 3 through the discharge pipe 6. The coarse particles that do not meet the standards (including undispersed residual agglomerates) are blocked by the blades of the classifying wheel 73 under the action of centrifugal force and fall back to below the separation plate 80, and re-enter the crushing-deagglomeration cycle.

[0024] The separation mechanism 8 includes a separation plate 80 located below the classifying wheel 73. The surface of the separation plate 80 has multiple connecting holes 81, and the inner wall of the connecting holes 81 is provided with a connecting element 82. Multiple nozzles 83 are provided between the separation plate 80 and the classifying wheel 73. The end of the nozzle 83 away from the crushing chamber 4 is connected to an air inlet pipe 84. The air pump 72 is connected to the air inlet pipe 84. The inner wall of the nozzle 83 is provided with an adjusting element 85 for adjusting the inner diameter of the nozzle 83.

[0025] During use, the pulverized powder rises with the airflow to the area of ​​the separation plate 80 and flows upward through the connecting hole 81. The connecting piece 82 inputs qualified fine powder between the separation plate 80 and the classifying wheel 73. The airflow sprayed by the nozzle 83 guides it to the classifying wheel 73. Under the drag force of the airflow, the qualified fine powder overcomes the centrifugal force and enters the inner ring of the classifying wheel 73. It is then transported to the impurity collection bin 3 through the discharge pipe 6. The undispersed residual agglomerates are blocked by the blades of the classifying wheel 73 under the action of centrifugal force and fall back between the separation plate 80 and the classifying wheel 73. The substandard coarse particles are blocked by the connecting piece 82 and naturally fall back to the spray zone of nozzle 70 to be crushed again.

[0026] The connecting component 82 includes a connecting pipe 86 fixedly connected to the inner wall of the connecting hole 81. A conical block 87 is fixedly connected to the top of the connecting pipe 86. A conical hole 88 is opened on the inner wall of the conical block 87. Multiple ceramic particles 89 are fixedly connected to the inner wall of the conical hole 88 to form a "shear-collision" deagglomeration channel. The inner diameter of the top of the conical hole 88 is the same as the size of the qualified fine powder.

[0027] After the copper oxide particles enter the inner wall of the connecting pipe 86, they impact the inner wall of the conical hole 88 under the action of airflow. The ceramic particles 89 on the inner wall of the conical hole 88 form a shear collision surface, breaking up the agglomerates. Only qualified single particles pass through, allowing qualified copper oxide fine powder to be discharged through the top outlet of the conical hole 88. Particles exceeding the size of qualified fine powder are either refluxed or crushed into particles of the correct size under impact. When qualified fine powder enters between the separating plate 80 and the classifying wheel 73, if the fine powder agglomerates to a size larger than qualified fine powder, it is difficult for it to reflux to the bottom of the separating plate due to the restriction of the conical hole 88. As a result, it will accumulate between the separating plate and the classifying wheel 73. When the content of copper oxide agglomerates between the separating plate and the classifying wheel 73 increases, it will inevitably affect the flow rate of qualified fine powder into the classifying wheel 73. At this time, the detection mechanism 9 increases the intensity of the supersonic airflow ejected from the nozzle 83, thereby cooperating with the classifying wheel 73 to quickly break up the fine powder agglomerates.

[0028] The adjusting component 85 includes a piston plate 810 that is slidably and sealingly connected to the inner wall of the nozzle 2 83. An armature 811 is fixedly connected to the top of the piston plate 810. A return spring 812 is fixedly connected to the outside of the armature 811. The return spring 812 is fixedly connected to the inner wall of the nozzle 2 83. An electromagnet 813 is installed on the inner wall of the nozzle 2 83. The electromagnet 813 is located outside the armature 811.

[0029] When the fine powder content above the separation mechanism 8 increases, but the fine powder flow rate inside the discharge pipe 6 decreases, the detection mechanism 9 controls the electromagnet 813 to be energized and increases the power supply current of the electromagnet 813. Under the action of electromagnetic attraction, the armature 811 overcomes the elastic force of the reset spring 812 and moves upward, pushing the piston plate 810 to move upward, increasing the flow inner diameter of the nozzle 83. As a result, the airflow of the air pump 72 into the nozzle 83 through the air inlet pipe 84 increases, enhancing the intensity of the supersonic airflow ejected from the nozzle and strengthening the dispersing effect on the agglomerates.

[0030] The detection mechanism 9 includes a bipolar conductivity probe 90 located between the separation plate 80 and the classifying wheel 73. The bipolar conductivity probe 90 is fixed to the inner wall of the crushing chamber 4. The two electrodes of the bipolar conductivity probe 90 are located on the same circumferential cross section. A controller 91 is installed on the surface of the crushing chamber 4. The controller 91 is connected to the bipolar conductivity probe 90 and the electromagnet 813 respectively. The controller 91 controls the current flow of the electromagnet 813. The inner wall of the discharge pipe 6 is provided with a detection element 92 for detecting the flow rate of fine copper oxide powder in the discharge pipe 6.

[0031] In use, the bipolar conductivity probe 90 is located in the area between the separation plate 80 and the classifying wheel 73. A weak high-frequency alternating current is applied to the bipolar conductivity probe 90, and the bipolar conductivity probe 90 detects the equivalent conductivity value of the gas-solid two-phase flow between the separation plate 80 and the classifying wheel 73 in real time. When the agglomeration of fine powder intensifies, since the bipolar conductivity probe 90 detects the "number of effective pathways that can participate in conduction", the increase of agglomerates will lead to a decrease in the effective conductive particles in the detection area. As a result, the conductivity value decreases as the concentration of fine powder decreases. The signal is transmitted to the controller 91 in real time. The controller 91 controls the electromagnet 813 to be energized, and the flow rate of copper oxide fine powder in the discharge pipe 6 is detected by the set detection element 92.

[0032] The testing component 92 includes a ceramic contact 93 located on the inner wall of the discharge pipe 6. A mounting base 94 is fixedly connected to the inner wall of the discharge pipe 6. The ceramic contact 93 is slidably connected to the inner wall of the mounting base 94. An arc-shaped spring 95 is installed on the inner wall of the mounting base 94. The convex end of the arc-shaped spring 95 contacts the ceramic contact 93. An insulating push rod 96 is fixedly connected to the concave end of the arc-shaped spring 95. A sliding rheostat 97 is fixedly connected to the inner wall of the mounting base 94. The insulating push rod 96 is fixedly connected to the slider of the sliding rheostat 97. The sliding rheostat 97 is connected in series with an electromagnet 813.

[0033] During use, the ceramic contact 93 inside the discharge pipe 6 deforms due to the impact of fine powder, causing the arc-shaped spring 95 to bend. This bends the sliding plate of the sliding rheostat 97 through the insulating push rod 96, thus converting the impact intensity (corresponding to the fine powder flow rate) into a change in resistance. If the flow rate of copper oxide powder in the discharge pipe 6 decreases, the arc-shaped spring 95 resets and drives the insulating push rod 96 to move. The insulating push rod 96 drives the slider of the sliding rheostat 97 to move, which reduces the resistance of the sliding rheostat 97 and increases the power supply current of the electromagnet 813.

[0034] Example 2: In this example, the other structures remain unchanged. The difference from Example 1 is that the outer side of the separation plate 80 is provided with a vibrating element 814 to drive the separation plate 80 to vibrate. The vibrating element 814 includes an armature 815 fixedly connected to the bottom center of the separation plate 80. A mounting frame 816 is fixedly connected to the inner wall of the crushing chamber 4. An electromagnet 817 is fixedly connected to the side of the mounting frame 816 near the armature 815. Multiple spring plates 818 are fixedly connected to the bottom edge of the separation plate 80. The end of the spring plate 818 away from the separation plate 80 is fixed to the inner wall of the crushing chamber 4. The bottom of the mounting frame 816 has a conical transition. In use, the controller 91 controls the electromagnet 817 to be intermittently energized. Through the alternating action of electromagnetic attraction and the elasticity of the spring plate 818, the separation plate 80 is driven to vibrate at high frequency, which avoids the accumulation and agglomeration of fine powder on the surface of the separation plate 80 and simultaneously enhances the deagglomeration effect of ceramic particles 89 in the conical hole 88 on copper oxide particles.

Claims

1. An integrated device for ultrafine grinding and impurity removal of copper oxide scale, comprising: The device casing, as well as the feed hopper and the impurity collection hopper; Its features include: a crushing chamber, wherein a feeding pipe is connected between the crushing chamber and the feeding chamber, and a discharge pipe is connected between the crushing chamber and the impurity removal and collection chamber; A crushing mechanism is located on the inner wall of the crushing chamber, and the crushing mechanism crushes the particles that enter the inner wall of the crushing chamber; A separation mechanism is located on the upper part of the inner wall of the crushing chamber. The separation mechanism classifies the particle size in the crushing chamber and sends qualified copper oxide fine powder into the discharge pipe. The detection mechanism is located in the crushing chamber and the discharge pipe. The detection mechanism detects the flow rate of copper oxide fine powder at multiple points and increases the separation force of the separation mechanism when the flow rate of copper oxide fine powder decreases.

2. The integrated device for ultrafine grinding and impurity removal of copper oxide scale according to claim 1, characterized in that: The bottom of the crushing chamber is conical. The crushing mechanism includes multiple nozzles installed at the bottom of the crushing chamber, with the nozzles spaced apart. The end of each nozzle furthest from the crushing chamber is connected to an air inlet pipe. An air pump is installed on the surface of the device housing and is connected to the air inlet pipe. A classifying wheel is rotatably connected to the upper part of the inner wall of the crushing chamber. The classifying wheel is coaxially arranged with the feed pipe and is connected to the feed pipe. A drive motor is installed on the inner wall of the crushing chamber, and the output shaft of the drive motor is fixedly connected to the axis of the classifying wheel.

3. The integrated device for ultrafine grinding and impurity removal of copper oxide scale according to claim 2, characterized in that: The separation mechanism includes a separation plate located below the classifying wheel. The surface of the separation plate has multiple connecting holes, and the inner wall of the connecting holes is provided with a connecting element. Multiple nozzles are provided between the separation plate and the classifying wheel. The end of each nozzle away from the crushing chamber is connected to an air inlet pipe. The air pump is connected to the air inlet pipe. The inner wall of each nozzle is provided with an adjusting element for adjusting the inner diameter of the nozzle.

4. The integrated device for ultrafine grinding and impurity removal of copper oxide scale according to claim 3, characterized in that: The connecting component includes a connecting pipe fixedly connected to the inner wall of the connecting hole, a conical block fixedly connected to the top of the connecting pipe, a conical hole opened in the inner wall of the conical block, a plurality of ceramic particles fixedly connected to the inner wall of the conical hole, and the inner diameter of the top of the conical hole being the same as the size of the qualified fine powder.

5. The integrated device for ultrafine grinding and impurity removal of copper oxide scale according to claim 3, characterized in that: The adjusting component includes a piston plate that is slidably and sealingly connected to the inner wall of the nozzle two. An armature is fixedly connected to the top of the piston plate. A return spring is fixedly connected to the outer side of the armature. The return spring is fixedly connected to the inner wall of the nozzle two. An electromagnet is installed on the inner wall of the nozzle two. The electromagnet is located outside the armature.

6. The integrated device for ultrafine grinding and impurity removal of copper oxide scale according to claim 5, characterized in that: The detection mechanism includes a bipolar conductivity probe located between the separation plate and the classifying wheel. The bipolar conductivity probe is fixedly connected to the inner wall of the crushing chamber. A controller is installed on the surface of the crushing chamber. The controller is connected to the bipolar conductivity probe and an electromagnet. The controller controls the current flow of the electromagnet. The inner wall of the discharge pipe is provided with a detection element for detecting the flow rate of fine copper oxide powder in the discharge pipe.

7. The integrated device for ultrafine grinding and impurity removal of copper oxide scale according to claim 6, characterized in that: The two electrodes of the bipolar conductivity probe are located on the same circumferential cross section.

8. The integrated device for ultrafine grinding and impurity removal of copper oxide scale according to claim 6, characterized in that: The detection component includes a ceramic contact plate located on the inner wall of the discharge pipe. A mounting base is fixedly connected to the inner wall of the discharge pipe. The ceramic contact plate is slidably connected to the inner wall of the mounting base. An arc-shaped spring is installed on the inner wall of the mounting base. The convex end of the arc-shaped spring contacts the ceramic contact plate. An insulating push rod is fixedly connected to the concave end of the arc-shaped spring. A sliding rheostat is fixedly connected to the inner wall of the mounting base. The insulating push rod is fixedly connected to the slider of the sliding rheostat. The sliding rheostat is connected in series with an electromagnet.

9. The integrated device for ultrafine grinding and impurity removal of copper oxide scale according to claim 3, characterized in that: The outer side of the separation plate is provided with a vibrating element that drives the separation plate to vibrate. The vibrating element includes an armature two fixedly connected to the bottom center of the separation plate. A mounting frame is fixedly connected to the inner wall of the crushing chamber. An electromagnet two is fixedly connected to the side of the mounting frame near the armature two. Multiple spring plates are fixedly connected to the bottom edge of the separation plate. The end of the spring plate away from the separation plate is fixedly connected to the inner wall of the crushing chamber.

10. The integrated device for ultrafine grinding and impurity removal of copper oxide scale according to claim 9, characterized in that: The bottom of the mounting bracket has a tapered transition.

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