A kind of electrolytic copper slag recovery equipment and process

Abstract

The invention discloses a recovery device and process for electrolytic copper slag, and relates to the technical field of copper slag recovery. The device comprises a furnace body, wherein a roller body 1 and a roller body 2 are arranged above the furnace body, and the roller body 1 and the roller body 2 are meshed with each other through flat gears for transmission to crush the copper slag, and shaft bodies 1 and 2 are respectively arranged inside the roller body 1 and the roller body 2, a feed box is arranged above the furnace body, a calcining furnace is arranged below the furnace body, a drop bin is arranged below the feed box, and baffles 1 and 2 are arranged inside the drop bin, a cylinder for dropping a reducing agent is arranged on one side of the drop bin, a connecting pipe is arranged on the outer wall of the cylinder, and the connecting pipe runs through the furnace body, and a storage box containing a reducing agent is arranged at one end of the connecting pipe. In the device, it is ensured that the crushed copper slag can be subjected to the reduction reaction of the reducing agent in the first time, so that the recovery quality of the copper slag is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of copper slag recovery, and in particular to a recovery device and process for electrolytic copper slag. Background Art

[0002] Electrolytic copper slag is a kind of waste. When copper is electrolytically refined, impurities in the anode plate are separated by the current to form a solid residue. These residues usually contain 5%-9% copper elements. People often recycle these electrolytic copper slags by melting them in a recovery furnace.

[0003] This includes the pyrometallurgical depletion treatment method, which is a traditional copper slag recovery method. Its basic principle is to add reducing agents, such as ferrous sulfide and carbon powder, to the copper slag under high temperature conditions to reduce the oxygen potential in the slag. This can reduce the iron olivine in the copper slag to magnetite, thereby reducing the density and viscosity of the slag, and causing the copper matte beads mixed in the copper slag to aggregate into large particles, which is convenient for copper recovery. However, the current common method of adding reducing agents is relatively primitive. Usually, the copper slag is crushed and then manually mixed and stirred according to the proportion, and then put into the furnace for pyrometallurgical treatment. This causes the copper slag to be idle for a certain period of time after being crushed, and the reaction activity of the cut surface of the copper slag is reduced. In the subsequent pyrometallurgical depletion process, it will be unfavorable for the reduction reaction of the copper slag and affect the final recovery quality.

[0004] To this end, the present invention provides a recovery device and process for electrolytic copper slag. Summary of the invention

[0005] The purpose of the present invention is to provide a recovery device and process for electrolytic copper slag to solve the problems raised in the above background technology. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrolytic copper slag recovery device and process, comprising a furnace body, wherein a roller body 1 and a roller body 2 are arranged above the furnace body, wherein the roller body 1 and the roller body 2 are meshed with each other through flat gears to drive and crush the copper slag, wherein shaft bodies 1 and 2 are respectively arranged inside the roller body 1 and the roller body 2, wherein a feed box is arranged above the furnace body, wherein a calcining furnace is arranged below the furnace body, wherein a drop bin is arranged below the feed box, wherein baffles 1 and 2 are arranged inside the drop bin, wherein a cylinder for dropping a reducing agent is arranged on one side of the drop bin, wherein a connecting pipe is arranged on the outer wall of the cylinder, wherein the connecting pipe runs through the furnace body, wherein a storage box containing a reducing agent is arranged at one end of the connecting pipe, wherein a dropping groove is arranged inside the cylinder, wherein a baffle bar for shielding the dropping groove is arranged on the inner wall of the cylinder, wherein a dropping unit for driving the baffle bar to rotate along the inner wall of the cylinder is arranged inside the furnace body, wherein when the dropping unit drives the dropping of the reducing agent, the copper slag inside the drop bin is in a storage state and does not fall to the bottom of the calcining furnace;

[0006] The delivery unit comprises a rotating mechanism located outside the furnace body, and the rotating mechanism is used to drive the calcining furnace to rotate, so as to drive the copper slag inside the calcining furnace to adhere to the furnace wall for dissolution.

[0007] Preferably, the delivery unit includes a connecting rod 1 located at the end of baffle 1, and there is an attractive magnetic force between the end of baffle 1 and connecting rod 1; a connecting rod 2 is provided at the end of baffle 2, and there is an attractive magnetic force between the end of baffle 2 and connecting rod 2; a spur gear 1 is provided between connecting rod 1 and connecting rod 2, and toothed portions meshing with spur gear 1 are provided above connecting rod 1 and connecting rod 2; a shaft 3 is provided inside the spur gear 1, and the end of the shaft 3 is rotatably connected to the drop bin; a connecting rod 3 is provided above connecting rod 2, and the end of connecting rod 3 is provided A ring body, wherein a special-shaped gear is arranged inside the ring body, and the inner wall of the ring body is provided with two rows of teeth meshing with the special-shaped gear, and a shaft body four penetrating the furnace body is arranged inside the special-shaped gear, and the shaft body four and shaft body two are driven by a belt, and a universal shaft is arranged at the end of the shaft body three, and a connecting ring is arranged on the outer wall of the universal shaft, and the connecting ring is located at the end of the baffle bar and fixedly connected thereto, and a limit block is arranged between the connecting ring and the universal shaft, and the inclined surface area of ​​the limit block is aligned with the notch edge of the connecting ring, and a spring is arranged at the end of the limit block, and there is damping between the connecting ring and the universal shaft.

[0008] Preferably, the rotating mechanism includes a bevel gear 1 located at one end of a shaft body, a bevel gear 2 meshing with the bevel gear 1 is provided below the bevel gear 1, a shaft body 5 is provided on the inner wall of the bevel gear 2, and a spur gear 2 is also provided on the outer wall of the shaft body 5, and a gear ring meshing with the spur gear 2 is provided on one side of the spur gear 2, and the gear ring is located on the outer wall of the calcining furnace and fixedly connected thereto, the outer wall of the calcining furnace is provided with a base for supporting it, a connecting frame is provided on one side of the base, and the other end of the connecting frame is fixedly connected to the outer wall of the furnace body, and the storage box is located above the connecting frame and fixedly connected thereto.

[0009] Preferably, a fixing box is provided on the outer wall of the universal joint, a stopper 1 is provided on the inner wall of the fixing box, the inclined surface area of ​​the stopper 1 and the side of the stopper 2 are on the same center line, a stopper 2 is provided at the end of the cylinder, and a rubber block is provided inside the fixing box.

[0010] Preferably, a connecting ring is provided above the gear ring, the connecting ring penetrates the interior of the furnace body and rotates relatively therewith, a sieve plate is provided above the connecting ring and fixedly connected therewith, and the sieve plate is shaped like a frustum that protrudes upward.

[0011] Preferably, the sieve plate comprises a raised portion and a flat portion, a plurality of leakage holes 1 are provided above the raised portion, a plurality of leakage holes 2 are provided above the flat portion, and a diameter of the leakage holes 2 is greater than a diameter of the leakage holes 1.

[0012] Preferably, the ends of baffle plate 1 and baffle plate 2 are both provided with fixing bars, the connecting rod 1 is slidably connected to the fixing bar, and the connecting rod 2 is slidably connected to the fixing bar.

[0013] Preferably, the area of ​​the port region of the delivery trough is larger than the area of ​​the transverse trough region, and the port region of the delivery trough is located above the plane portion.

[0014] A process for recycling electrolytic copper slag comprises the following steps:

[0015] S1: The copper slag after crushing falls into the inside of the drop bin, and the baffles 1 and 2 are opened. After the copper slag falls above the screen plate, it will fall into the designated position in the calcining furnace according to the size of its particles;

[0016] S2: As the special-shaped gears continue to mesh, baffles 1 and 2 are closed again, and the reducing agent inside the cylinder is automatically fed into the calcining furnace;

[0017] S3: At the same time, the rotating mechanism drives the calcining furnace to rotate, driving the input reducing agent to fully combine with the copper slag to achieve the effect of copper slag reduction and recovery;

[0018] S4: After further transmission of the special-shaped gear, baffles 1 and 2 will open again and release the stored copper slag, achieving the effect of intermittently adding copper slag and reducing agent, making the reduction effect of both better.

[0019] The present invention has at least the following beneficial effects:

[0020] 1. In the present invention, the baffle plate 1 and the baffle plate 2 are driven to open and close reciprocally through the delivery unit, and the reducing agent inside the cylinder is automatically delivered in the gap of copper slag replenishment, so that the intermittent delivery of copper slag and reducing agent is realized reciprocally, ensuring that the reducing agent injected each time is attached to the surface of the copper slag just crushed, ensuring that the crushed copper slag can be subjected to the reduction reaction of the reducing agent in the first time, so that the recovery quality of the copper slag is effectively improved.

[0021] 2. In the present invention, due to the rotation effect of the calcining furnace, the copper slag and the reducing agent falling into the calcining furnace will be affected by the centrifugal force and tend to move close to the inner wall of the calcining furnace. Since the heat conduction of the calcining furnace is transmitted from the outside to the inside, the temperature of the outer ring area close to the inner wall of the calcining furnace is higher, which improves the melting effect of the copper slag inside. On the other hand, the rotating calcining furnace also keeps the added copper slag and the reducing agent in motion at all times, ensuring that the two are fully combined, having a good reduction effect, and improving the final copper slag recovery quality.

[0022] 3. In the present invention, the fallen copper slag can be classified according to its particle size and automatically roll down to the middle and edge positions of the calcining furnace, which is consistent with the heat conduction law of the calcining furnace and the centrifugal force, so that the larger copper slag will be sent to the edge area with higher temperature, and the smaller copper slag will be sent to the middle area, which rationally utilizes the heat conduction of the calcining furnace and saves recycling resources; on the other hand, since the end area of ​​the delivery trough is large, and the area where it falls belongs to the edge area of ​​the calcining furnace with a large amount of copper slag, the required reducing agent dosage is supplemented accordingly, so that the copper slag in different areas can obtain targeted reduction effects, further improving the reduction quality of the copper slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle;

[0025] Figure 3 It is a cross-sectional view of the furnace structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 A magnified view of the structure of the middle A area;

[0027] Figure 5 For the present invention Figure 3 A magnified view of the structure of the middle B region;

[0028] Figure 6 This is a schematic diagram of the structure of the material bin and its peripheral accessories of the present invention;

[0029] Figure 7 For the present invention Figure 6 A magnified view of the structure of the middle D region;

[0030] Figure 8 This is a cross-sectional view of the material bin structure of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the end area of ​​the cylinder of the present invention;

[0032] Fig.10 This is a cross-sectional view of the barrel structure of the present invention;

[0033] Fig.11 For the present invention Fig.10 Enlarged view of the structure of the middle C region.

[0034] In the figure: 1-furnace body; 2-roller body 1; 3-roller body 2; 4-shaft body 1; 5-shaft body 2; 6-feeding box; 7-calcining furnace; 8-feeding bin; 9-baffle 1; 10-baffle 2; 11-cylinder body; 12-connecting pipe; 13-storage box; 14-dispensing slot; 15-bar; 16-dispensing unit; 17-rotating mechanism; 18-connecting rod 1; 19-connecting rod 2; 20-flat gear 1; 21-toothed part; 22-shaft body 3; 23-connecting rod 3; 24-ring body; 25-special-shaped Gear; 26-tooth row; 27-shaft body four; 28-universal shaft; 29-connecting ring; 30-limiting block; 31-spring; 32-bevel gear one; 33-bevel gear two; 34-shaft body five; 35-flat gear two; 36-tooth ring; 37-base; 38-connecting frame; 39-fixing box; 40-block one; 41-block two; 42-rubber block; 43-connecting ring; 44-sieve plate; 45-protrusion; 46-plane part; 47-leak hole one; 48-leak hole two; 49-fixing strip. DETAILED DESCRIPTION

[0035] 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.

[0036] See also Figure 1-11 The present invention provides a technical solution: a recovery device and process for electrolytic copper slag, comprising:

[0037] Embodiment 1:

[0038] A furnace body 1, a roller body 2 and a roller body 3 are arranged above the furnace body 1, and the roller body 2 and the roller body 3 are meshed with each other through flat gears to transmit power to crush the copper slag, and a shaft body 4 and a shaft body 2 are respectively arranged inside the roller body 2 and the roller body 2 3, and a feed box 6 is arranged above the furnace body 1 and is fixedly connected thereto, the roller body 2 and the roller body 2 3 are both located inside the feed box 6, the shaft body 1 4 is fixedly connected to the roller body 2, the shaft body 2 5 is fixedly connected to the roller body 2 3, the shaft body 1 4 and the shaft body 2 5 are both rotatably connected to the feed box 6, and the shaft body 1 4 is driven by a motor; the above is the prior art, so it will not be repeated here.

[0039] In this scheme, a calcining furnace 7 is provided below the furnace body 1, and the calcining furnace 7 rotates relative to the furnace body 1. A drop bin 8 is provided below the feed box 6, and the upper end of the drop bin 8 is fixedly connected to the inner wall of the furnace body 1. A baffle 1 9 and a baffle 2 10 are provided inside the drop bin 8. Both the baffle 1 9 and the baffle 2 10 slide freely inside the drop bin 8. A cylinder 11 for placing a reducing agent is provided on one side of the drop bin 8. The cylinder 11 is fixedly connected to the inner wall of the furnace body 1 through a fixed frame. A connecting pipe 12 is provided on the outer wall of the cylinder 11 and is connected to the inner wall of the furnace body 1. The connecting pipe 12 passes through the furnace body 1 and is fixedly connected to the furnace body 1. One side of the connecting pipe 12 is provided. A storage box 13 containing a reducing agent is provided at the end, a delivery groove 14 is provided inside the cylinder 11, and a baffle 15 for covering the delivery groove 14 is provided on the inner wall of the cylinder 11. The baffle 15 slides freely on the inner wall of the cylinder 11, and a delivery unit 16 for driving the baffle 15 to rotate along the inner wall of the cylinder 11 is provided inside the furnace body 1. When the delivery unit 16 drives the reducing agent to be delivered, the copper slag inside the drop bin 8 is in a storage state and does not fall to the bottom of the calcining furnace 7; through the delivery unit 16, intermittent delivery of copper slag and reducing agent is realized, thereby ensuring full fusion of copper slag and reducing agent and improving the reduction and recovery quality of copper slag.

[0040] The delivery unit 16 includes a connecting rod 18 located at the end of the baffle 19, and there is an attractive magnetic force between the end of the baffle 19 and the connecting rod 18. The end of the baffle 10 is provided with a connecting rod 2 19, and there is an attractive magnetic force between the end of the baffle 10 and the connecting rod 2 19. The ends of the baffles 10 and 10 are both provided with a fixing bar 49 and are fixedly connected thereto. The connecting rod 18 is slidably connected to the fixing bar 49, and the connecting rod 2 19 is slidably connected to the fixing bar 49; when the connecting rod 18 or the connecting rod 2 19 slides on the fixing bar 49 to the end of the baffle 10 or the baffle 2 10 When the connecting rod 18 and the connecting rod 2 19 are close to each other, the magnetic attraction effect of the baffle 1 9 and the baffle 2 10 on them respectively will drive themselves to move closer to each other until the ends of the baffle 1 9 and the baffle 2 10 resist the outer wall of the drop bin 8, and the connecting rod 18 and the connecting rod 2 19 still have space for displacement inside the fixed bar 49. Therefore, when the copper slag is stored, the reducing agent has sufficient time to be put in, thereby ensuring that the copper slag obtains a good reduction reaction.

[0041] Furthermore, a spur gear 20 is provided between the connecting rod 18 and the connecting rod 2 19, and a toothed portion 21 meshing with the spur gear 20 is provided above the connecting rod 18 and the connecting rod 2 19, a shaft body 3 22 is provided inside the spur gear 20 and fixedly connected thereto, and the end of the shaft body 3 22 is rotatably connected to the blanking bin 8, a connecting rod 3 23 is provided above the connecting rod 2 19 and fixedly connected thereto, a ring body 24 is provided at the end of the connecting rod 3 23 and fixedly connected thereto, a special-shaped gear 25 is provided inside the ring body 24, and two rows of tooth rows 26 meshing with the special-shaped gear 25 are provided on the inner wall of the ring body 24, a shaft body 4 27 penetrating the furnace body 1 is provided inside the special-shaped gear 25, the special-shaped gear 25 is fixedly connected to the shaft body 4 27, the shaft body 4 27 is rotatably connected to the furnace body 1, and the shaft body 4 27 and the shaft body 2 5 are driven by a belt;

[0042] A universal shaft 28 is provided at the end of the shaft body 3 22 and is fixedly connected thereto, a connecting ring 29 is provided on the outer wall of the universal shaft 28 and rotates relatively thereto, the connecting ring 29 is located on the inner wall of the cylinder 11 and rotates relatively thereto, the connecting ring 29 is located at the end of the baffle 15 and is fixedly connected thereto, a limit block 30 is provided between the connecting ring 29 and the universal shaft 28, the inclined surface area of ​​the limit block 30 is aligned with the notch edge of the connecting ring 29, the limit block 30 slides freely inside the universal shaft 28, a spring 31 is provided at the end of the limit block 30, the two ends of the spring 31 are respectively fixedly connected to the universal shaft 28 and the limit block 30, and the connecting ring 29 is located at the end of the baffle 15 and is fixedly connected thereto. There is damping between the connecting ring 29 and the universal shaft 28. A fixing box 39 is provided on the outer wall of the universal shaft 28 and fixedly connected thereto. A stopper 40 is provided on the inner wall of the fixing box 39. The stopper 40 slides freely inside the fixing box 39. A stopper 41 is provided at the end of the cylinder 11 and fixedly connected thereto. A rubber block 42 is provided inside the fixing box 39. The end of the rubber block 42 is fixedly connected to the stopper 40. The inclined surface area of ​​the stopper 40 and the side edge of the stopper 41 are on the same center line. When the flat surface of the stopper 40 and the flat surface of the stopper 41 are against each other, the baffle can completely cover the delivery slot 14.

[0043] When in use, the rotating shaft body 25 will drive the shaft body 4 27 through the belt to transmit, and then drive the special-shaped gear 25 and the tooth row 26 on the inner wall of the ring body 24 to mesh with each other for transmission. Since the meshing directions of the special-shaped gear 25 and the two rows of tooth rows 26 on the inner wall of the ring body 24 are opposite, the ring body 24 will drive the connecting rod 3 23 and the connecting rod 2 19 to move back and forth together, so that the baffle 1 9 and the baffle 2 10 show intermittent opening and closing movements;

[0044] When baffle plate 1 9 and baffle plate 2 10 are in a state of being close to each other, the toothed portions 21 on the connecting rod 1 18 and the connecting rod 2 19 that are close to each other will mesh with the spur gear 1 20, thereby driving the spur gear 1 20 and the shaft body 3 22 to rotate, so that the inclined surface area of ​​the block 1 40 on one side of the universal shaft 28 will resist the block 2 41, and under the elastic action of the rubber block 42, the block 1 40 will pass the block 2 41 and rotate with the universal shaft 28, and at the same time, the vertical area of ​​the limit block 30 inside the universal shaft 28 will resist the inner wall of the notch of the connecting ring 29, thereby driving the connecting ring 29 and the baffle to rotate on the inner wall of the cylinder 11, so that the delivery slot 14 inside the cylinder 11 loses the shielding of the baffle, and the reducing agent falls freely; on the contrary, when the connecting rod 1 8 and the connecting rod 2 19 move away from each other, the shaft body 3 22 will rotate in the opposite direction, driving the vertical part of the stop block 1 40 to resist the vertical part of the baffle 2. At this time, the inclined area of ​​the limit block 30 will resist the edge of the inner notch of the connecting ring 29, and the limit block 30 will retract backward under the elastic force of the spring 31, so that the universal joint 28 cannot drive the connecting ring 29 and the baffle to rotate inside the cylinder 11, so that the amount of copper slag input in this state can be sufficiently replenished to prepare for the next reducing agent input. In this reciprocating manner, the intermittent input of copper slag and reducing agent is realized, ensuring that the reducing agent injected each time is attached to the surface of the copper slag just crushed, ensuring that the crushed copper slag can be reduced by the reducing agent as soon as possible, so that the recovery quality of the copper slag is effectively improved.

[0045] The delivery unit 16 includes a rotating mechanism 17 located outside the furnace body 1, and the rotating mechanism 17 is used to drive the calcining furnace 7 to rotate, so as to drive the copper slag inside the calcining furnace 7 to adhere to the furnace wall for dissolution; the rotating mechanism 17 includes a bevel gear 1 32 located at the end of the shaft body 1 4, and the end of the shaft body 1 4 is fixedly connected to the bevel gear 1 32, and a bevel gear 2 33 meshing with the bevel gear 1 32 is provided below the bevel gear 1 32, and a shaft body 5 34 is provided on the inner wall of the bevel gear 2 33 and fixedly connected to the shaft body 5 34, and a flat gear 2 35 is also provided on the outer wall of the shaft body 5 34 and fixedly connected to the shaft body 5 34, and the shaft body 5 34 is fixedly connected to the outer wall of the furnace body 1 through a fixing frame Then, the shaft body 5 34 is rotatably connected with the fixed frame, one side of the flat gear 2 35 is provided with a gear ring 36 meshing with it, the gear ring 36 is located on the outer wall of the calcining furnace 7 and is fixedly connected thereto, the outer wall of the calcining furnace 7 is provided with a base 37 supporting it, the base 37 rotates relative to the calcining furnace 7, one side of the base 37 is provided with a connecting frame 38 and is fixedly connected thereto, the other end of the connecting frame 38 is fixedly connected to the outer wall of the furnace body 1, the storage box 13 is located above the connecting frame 38 and is fixedly connected thereto, a connecting ring 43 is provided above the gear ring 36 and is fixedly connected thereto, the connecting ring 43 passes through the interior of the furnace body 1 and rotates relative to it;

[0046] When in use, the rotation of shaft body 1 4 will drive bevel gear 1 32 and bevel gear 2 33 to transmit, and then drive flat gear 2 35 on the outer wall of shaft body 5 34 to mesh with gear ring 36, so as to drive calcining furnace 7 to rotate under furnace body 1. Due to the rotation effect of calcining furnace 7, copper slag and reducing agent falling into it will be affected by centrifugal force and show a tendency to move close to the inner wall of calcining furnace 7. Since the heat conduction of calcining furnace 7 is transmitted from outside to inside, the temperature of the outer ring area close to the inner wall of calcining furnace 7 is higher, which improves the melting effect of copper slag inside it. On the other hand, the rotating calcining furnace 7 also makes the added copper slag and reducing agent always in motion, ensuring the full combination of the two, with good reduction effect, and improving the final copper slag recovery quality.

[0047] According to the above embodiment, embodiment 2:

[0048] A sieve plate 44 is provided above the connecting ring 43 and is fixedly connected thereto. The drying plate rotating with the connecting ring 43 will also quickly distribute the fallen copper slag to avoid congestion of the fallen copper slag. The shape of the sieve plate 44 is an upwardly protruding truncated cone. The sieve plate 44 includes a protruding portion 45 and a flat portion 46. The outer wall of the flat portion 46 fits the inner wall of the furnace body 1 and can rotate freely. A plurality of leakage holes 47 are provided above the protruding portion 45, and a plurality of leakage holes 48 are provided above the flat portion 46. The diameter of the leakage holes 48 is greater than the diameter of the leakage holes 47. The area of ​​the port region of the delivery slot 14 is greater than the area of ​​the transverse slot region. The port region of the delivery slot 14 is located above the flat portion 46.

[0049] Due to the special shape of the sieve plate 44 and the fact that the diameter of the second leakage hole 48 is larger than that of the first leakage hole 47, the fallen copper slag can be classified according to its particle size and automatically roll down to the middle position and edge position of the calcining furnace 7, which is consistent with the heat conduction law of the calcining furnace 7 and the centrifugal force, so that the larger copper slag will be sent to the edge area with higher temperature, and the smaller copper slag will be sent to the middle area, which rationally utilizes the heat conduction of the calcining furnace 7 and saves recycling resources; on the other hand, since the end area of ​​the delivery trough 14 is larger, the volume of the reducing agent falling from here will also increase, and the area where it falls belongs to the edge area of ​​the calcining furnace 7 with a large amount of copper slag, so that the required reducing agent dosage is supplemented accordingly, so that the copper slag in different areas can obtain targeted reduction effects, further improving the reduction quality of the copper slag.

[0050] A process for recycling electrolytic copper slag comprises the following steps:

[0051] S1: The copper slag after being crushed falls into the inside of the drop bin 8, the baffle 1 9 and the baffle 2 10 are opened, and the copper slag falls onto the screen plate 44 and falls into the designated position in the calcining furnace 7 according to the size of its particles;

[0052] S2: As the special-shaped gear 25 continues to mesh, the baffle 1 9 and the baffle 2 10 are closed again, and the reducing agent inside the cylinder 11 is automatically put into the calcining furnace 7;

[0053] S3: At the same time, the rotating mechanism 17 drives the calcining furnace 7 to rotate, driving the input reducing agent to fully combine with the copper slag, so as to achieve the effect of copper slag reduction and recovery;

[0054] S4: After further transmission of the special-shaped gear 25, the baffle 1 9 and the baffle 2 10 will open again and release the stored copper slag, so as to achieve the effect of intermittently adding copper slag and reducing agent, so that the reduction effect of both is better.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] 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 recovering electrolytic copper slag, comprising a furnace body (1), wherein a roller body 1 (2) and a roller body 2 (3) are arranged above the furnace body (1), wherein the roller body 1 (2) and the roller body 2 (3) are meshed with each other through flat gears to drive and crush the copper slag, wherein a shaft body 1 (4) and a shaft body 2 (5) are arranged inside the roller body 1 (2) and the roller body 2 (3), respectively, wherein a feed box (6) is arranged above the furnace body (1), and a calcining furnace (7) is arranged below the furnace body (1), Features: A material drop bin (8) is provided below the feed box (6), and a baffle plate 1 (9) and a baffle plate 2 (10) are provided inside the material drop bin (8). The baffle plate 1 (9) and the baffle plate 2 (10) are both able to slide freely inside the material drop bin (8), and the copper slag is received by the baffle plate 1 (9) and the baffle plate 2 (10) after passing through the feed box (6). A cylinder (11) for feeding a reducing agent is provided on one side of the material drop bin (8), and a connecting pipe (12) is provided on the outer wall of the cylinder (11), and the connecting pipe (12) passes through the furnace body (1). A storage box (13) containing a reducing agent is provided at one end of the connecting pipe (12); a delivery slot (14) is provided inside the cylinder (11); a baffle (15) for shielding the delivery slot (14) is provided on the inner wall of the cylinder (11); a delivery unit (16) for driving the baffle (15) to rotate along the inner wall of the cylinder (11) is provided inside the furnace body (1); when the delivery unit (16) is in a state of driving the reducing agent to be delivered, the copper slag inside the delivery bin (8) is in a storage state and does not fall to the bottom of the calcining furnace (7); The delivery unit (16) comprises a rotating mechanism (17) located outside the furnace body (1), the rotating mechanism (17) being used to drive the calcining furnace (7) to rotate, driving the copper slag inside the calcining furnace (7) to adhere to the furnace wall for dissolution, and the delivery unit (16) drives the baffle plate 1 (9) and the baffle plate 2 (10) to perform a reciprocating opening and closing movement.

2. The electrolytic copper slag recovery equipment according to claim 1, characterized in that: The delivery unit (16) comprises a connecting rod 1 (18) located at the end of baffle 1 (9), and there is an attractive magnetic force between the end of baffle 1 (9) and connecting rod 1 (18); a connecting rod 2 (19) is provided at the end of baffle 2 (10), and there is an attractive magnetic force between the end of baffle 2 (10) and connecting rod 2 (19); a spur gear 1 (20) is provided between connecting rod 1 (18) and connecting rod 2 (19); a toothed portion (21) meshing with spur gear 1 (20) is provided above connecting rod 1 (18) and connecting rod 2 (19); a shaft body 3 (22) is provided inside the spur gear 1 (20), and the end of the shaft body 3 (22) is rotatably connected to the drop bin (8); a connecting rod 3 (23) is provided above connecting rod 2 (19), and a ring body (24) is provided at the end of connecting rod 3 (23); A special-shaped gear (25) is provided inside the ring body (24), and two rows of teeth (26) meshing with the special-shaped gear (25) are provided on the inner wall of the ring body (24). A shaft body (27) penetrating the furnace body (1) is provided inside the special-shaped gear (25). The shaft body (27) and the shaft body (5) are driven by a belt. A universal shaft (28) is provided at the end of the shaft body (22). A connecting ring (29) is provided on the outer wall of the universal shaft (28). The connecting ring (29) is located at the end of the baffle (15) and is fixedly connected thereto. A limit block (30) is provided between the connecting ring (29) and the universal shaft (28). The inclined surface area of ​​the limit block (30) is aligned with the notch edge of the connecting ring (29). A spring (31) is provided at the end of the limit block (30). There is damping between the connecting ring (29) and the universal shaft (28).

3. The electrolytic copper slag recovery equipment according to claim 2, characterized in that: The rotating mechanism (17) comprises a bevel gear 1 (32) located at the end of the shaft body 1 (4); a bevel gear 2 (33) meshing with the bevel gear 1 (32) is provided below the bevel gear 1 (32); a shaft body 5 (34) is provided on the inner wall of the bevel gear 2 (33); a flat gear 2 (35) is provided on the outer wall of the shaft body 5 (34); a toothed ring (36) meshing with the flat gear 2 (35) is provided on one side of the flat gear 2 (35); the toothed ring (36) is located on the outer wall of the calcining furnace (7) and is fixedly connected thereto; a base (37) supporting the calcining furnace (7) is provided on the outer wall of the calcining furnace (7); a connecting frame (38) is provided on one side of the base (37); the other end of the connecting frame (38) is fixedly connected to the outer wall of the furnace body (1); and the material storage box (13) is located above the connecting frame (38) and is fixedly connected thereto.

4. The electrolytic copper slag recovery equipment according to claim 2, characterized in that: The outer wall of the universal shaft (28) is provided with a fixing box (39), the inner wall of the fixing box (39) is provided with a stopper 1 (40), the inclined surface area of ​​the stopper 1 (40) and the side edge of the stopper 2 (41) are on the same center line, the end of the cylinder (11) is provided with a stopper 2 (41), and a rubber block (42) is provided inside the fixing box (39), and the rubber block (42) has a self-restoring elastic force.

5. The electrolytic copper slag recovery equipment according to claim 3, characterized in that: A connecting ring (43) is provided above the gear ring (36), the connecting ring (43) penetrates the interior of the furnace body (1) and rotates relatively therewith, a sieve plate (44) is provided above the connecting ring (43) and is fixedly connected therewith, the sieve plate (44) being shaped in the form of a frustum that protrudes upwards.

6. The electrolytic copper slag recovery equipment according to claim 5, characterized in that: The sieve plate (44) comprises a raised portion (45) and a flat portion (46); a plurality of leakage holes (47) are provided above the raised portion (45); a plurality of leakage holes (48) are provided above the flat portion (46); and a diameter of the leakage holes (48) is greater than a diameter of the leakage holes (47).

7. The electrolytic copper slag recovery equipment according to claim 2, characterized in that: The ends of the baffle plate 1 (9) and the baffle plate 2 (10) are both provided with a fixing strip (49), the connecting rod 1 (18) is slidably connected to the fixing strip (49), and the connecting rod 2 (19) is slidably connected to the fixing strip (49).

8. The electrolytic copper slag recovery equipment according to claim 6, characterized in that: The area of ​​the port region of the delivery trough (14) is larger than the area of ​​the transverse trough region, and the port region of the delivery trough (14) is located above the plane portion (46).

9. The process of the electrolytic copper slag recovery equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: The copper slag after being crushed falls into the inside of the drop bin (8), the baffle plate 1 (9) and the baffle plate 2 (10) are opened, and the copper slag falls onto the screen plate (44), and then falls into the designated position in the calcining furnace (7) according to the size of its particles; S2: As the special-shaped gear (25) continues to mesh, the baffle plate 1 (9) and the baffle plate 2 (10) are closed again, and the reducing agent inside the cylinder (11) is automatically fed into the calcining furnace (7); S3: At the same time, the rotating mechanism (17) drives the calcining furnace (7) to rotate, driving the input reducing agent to fully combine with the copper slag, thereby achieving the effect of copper slag reduction and recovery; S4: After further transmission of the special-shaped gear (25), the baffle plate 1 (9) and the baffle plate 2 (10) will open again and release the stored copper slag, thereby achieving the effect of intermittently adding the copper slag and the reducing agent, so that the reduction effect of the two is better.

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