Treatment device for copper smelting waste refractory material

Abstract

The invention relates to treatment equipment for copper smelting consumables, in particular to a treatment device for waste refractory materials generated in the pyrogenic process copper smelting process, in the scheme, a first disc cutter and a first rolling sleeve are arranged on a first rotating shaft, a second disc cutter and a second rolling sleeve are arranged on a second rotating shaft, and the first disc cutter and the second disc cutter form shearing fit; the first rolling sleeve and the second rolling sleeve are in rolling fit, large-size waste is cut and crushed by the disc cutters in shearing fit, on one hand, it is guaranteed that the crushed waste can smoothly reach the position between the first rolling sleeve and the second rolling sleeve to be further rolled and crushed, the waste is discharged from large to small, and the screening requirement of a downstream screening device is met; in the waste crushing process, effective separation of adhered and mixed copper sheets or copper matte or anode copper sheets and metallurgical furnace lining waste is achieved at the same time, and the copper sheets and the furnace lining waste can be separated through subsequent simple screening.

Description

Technical Field

[0001] The invention relates to a processing device for copper smelting consumables, in particular to a processing device for waste refractory materials generated in the process of pyrometallurgical copper smelting. Background Art

[0002] The recycling of smelting waste is not only an urgent need for resource reuse, but also a basic task to meet environmental protection regulations. In the process of pyrometallurgical copper smelting, some refractory linings are usually used, including metallurgical furnace linings, chute linings, etc. The types and material compositions of refractory linings in different parts are different, such as magnesia-chrome bricks, high-alumina bricks, silicon carbide bricks, chrome corundum bricks, and temperature-resistant casting materials. These refractory materials are in contact with high-temperature melts during use, and the matte or crude copper melt will inevitably penetrate into them. Therefore, when these linings are repaired and replaced, a large amount of copper metal will inevitably be taken away. In order to recover this part of copper, people have tried to use the grinding-ore dressing method, but due to the influence of impurities such as magnesium, the recovery rate is not high and the copper loss is large. Therefore, most smelters currently still use manual sorting to pick out the obvious copper-containing parts and return them to the smelting furnace, and the copper-containing parts are not obvious as waste. This not only has a large workload for manual sorting, but also a poor on-site dust environment, and it is difficult for manual sorting to distinguish and pick out fine particles of copper, and there is still some copper loss. Since a considerable part of the furnace bricks are sintered into blocks under high temperature, the blocks are too large to be directly returned to the furnace. Therefore, the large blocks of slag are usually crushed by jaw crusher and then the coarse particles are returned to the refining furnace. Since the material usually contains some large pieces of copper, in order to ensure the normal operation of the crusher, this part must be manually picked out in advance, which is labor-intensive and inefficient. In addition, the large copper that is missed often enters the jaw crusher and dies in the crusher cavity or even damages the crusher. At the same time, if fine powder is directly added to the refining operation, it will be lost with the volatilization of smoke and dust. If it is manually screened, not only is the labor intensity too high and the efficiency is low, but the working environment is also very bad. Summary of the invention

[0003] The purpose of the present invention is to provide a processing device for copper-smelting waste refractory materials, which can crush metallurgical furnace linings and chute linings that are adhered to and mixed with crude copper or matte or anode copper pieces, so as to improve the efficiency of downstream screening processes.

[0004] To achieve the above object, the present invention adopts the following technical solution: a copper smelting waste refractory material processing device, characterized in that it comprises a first rotating shaft and a second rotating shaft which are arranged parallel to each other and spaced apart, and the axis cores of the first rotating shaft and the second rotating shaft are coplanar and located in a horizontal plane; The first rotating shaft is provided with a first disc cutter and a first roller pressing sleeve, which are synchronously rotated in the circumferential direction and limited in the axial direction with the first rotating shaft; the second rotating shaft is provided with a second disc cutter and a second roller pressing sleeve, which are synchronously rotated in the circumferential direction and limited in the axial direction with the second rotating shaft; The blades of the first disc cutter and the adjacent side of the second disc cutter at the corresponding positions on the first rotating shaft and the second rotating shaft form a shearing fit, and the circumferential roller surfaces of the first roller pressing sleeve and the second roller pressing sleeve at the corresponding positions on the first rotating shaft and the second rotating shaft form the first roller pressing surface and the second roller pressing surface for extruding the material; During the rotation of the first rotating shaft and the second rotating shaft, the trajectories of the first disc cutter and the second roller pressing sleeve, and the trajectories of the first roller pressing sleeve and the second disc cutter avoid each other.

[0005] In the above technical scheme, a first disc cutter and a first roller sleeve are arranged on the first rotating shaft, and a second disc cutter and a second roller sleeve are arranged on the second rotating shaft. The first disc cutter and the second disc cutter form a shearing cooperation, and the first roller sleeve and the second roller sleeve form a rolling cooperation. Large-sized waste is cut and crushed by the disc cutter in the shearing cooperation. On the one hand, it is ensured that the crushed waste can smoothly reach the space between the first roller sleeve and the second roller sleeve to be further rolled and crushed. The discharge of the waste changes from large to small to meet the screening requirements of the downstream screening device. In the process of waste crushing, effective separation of the adhered and mixed crude copper or matte or anode copper sheets and metallurgical furnace lining waste is achieved at the same time. The copper sheets and furnace lining waste can be separated by subsequent simple screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a three-dimensional structural schematic diagram of the invention; Figure 2 is a top view of the present invention; Figure 3 is a three-dimensional diagram of a first disc cutter in the present invention; Figure 4a , 4b 4 and 4c are schematic diagrams of the working process, wherein 4b shows the housing of the device, and the housing is omitted in other views; Figure 5 It is a schematic diagram of the matching state of the roller sleeve during the working process; Figure 6a , 6b 6c are three specific implementation schemes of the roll-pressed sleeve. DETAILED DESCRIPTION

[0007] The copper-smelting waste refractory material is transported to the copper-smelting waste refractory material processing device provided in this application by the conveying mechanism and the shovel equipment, see Figure 1 , 2 4b, the processing device comprises a housing 1, wherein a first rotating shaft 10A and a second rotating shaft 10B are arranged in parallel and spaced apart from each other, and the axis cores of the first rotating shaft 10A and the second rotating shaft 10B are coplanar and located in a horizontal plane; The first rotating shaft 10A is provided with a first disc cutter 20A and a first roller sleeve 30A, and the first disc cutter 20A and the first roller sleeve 30A form a circumferential synchronous rotation and axial limit fit with the first rotating shaft 10A; the second rotating shaft 10B is provided with a second disc cutter 20B and a second roller sleeve 30B, and the second disc cutter 20B and the second roller sleeve 30B form a circumferential synchronous rotation and axial limit fit with the second rotating shaft 10B; The blades of the first disc cutter 20A and the second disc cutter 20B at the corresponding positions on the first rotating shaft 10A and the second rotating shaft 10B form a shearing fit, and the circumferential roller surfaces of the first rolling sleeve 30A and the second rolling sleeve 30B at the corresponding positions on the first rotating shaft 10A and the second rotating shaft 10B form a first rolling surface 31A and a second rolling surface 31B for extruding the material; During the rotation of the first rotating shaft 10A and the second rotating shaft 10B, the trajectories of the first disc cutter 20A and the second roller pressing sleeve 30B, and the trajectories of the first roller pressing sleeve 30A and the second disc cutter 20B avoid each other.

[0008] The copper-smelting waste refractory material enters from the upper feed port of the shell 1. During the rotation of the first rotating shaft 10A and the second rotating shaft 10B, the large-sized materials are first broken into medium-sized materials under the shearing action of the first disc knife 20A and the second disc knife 20B, and the broken medium-sized materials are directly moved to the rolling area composed of the first rolling surface 31A and the second rolling surface 31B on the side to be further broken into small materials, thereby ensuring the effective separation of the metallurgical furnace lining waste adhering to and mixed with crude copper or matte or anode copper blocks, and the copper blocks can be separated from the furnace lining waste by a simple screening operation of the subsequent screening device. The device not only solves the separation of copper blocks from furnace lining waste, but also realizes the crushing of furnace lining waste, significantly improves the treatment efficiency of metallurgical furnace lining waste adhering to and mixed with copper blocks, and improves the copper recovery rate.

[0009] In order to improve the separation effect of copper sheet blocks and furnace lining waste, the present application is realized by a first disc cutter 20A and a second disc cutter 20B that cooperate with each other. Preferably, a first toothed tool 21A is circumferentially distributed at the edge of the first disc cutter 20A, and a second toothed tool 21B is circumferentially distributed at the edge of the second disc cutter 20B. The first toothed tool 21A and the second toothed tool 21B have the same shape and size, and the first toothed tool 21A and the second toothed tool 21B are mirror-arranged on the symmetry plane of the first rotating shaft 10A and the second rotating shaft 10B. The tooth shapes of the first toothed cutter 21A and the second toothed cutter 21B that cooperate with each other can form a bayonet-shaped constraint area, ensuring that the material arriving between the first toothed cutter 21A and the second toothed cutter 21B is first clamped and constrained between the first toothed cutter 21A and the second toothed cutter 21B, and the material blocks will not maintain a tumbling motion state when the first rotating shaft 10A and the second rotating shaft 10B rotate. During the relative rotation of the first toothed cutter 21A and the second toothed cutter 21B, the copper sheet blocks adhered to and mixed with the metallurgical furnace lining waste will be twisted and deformed, and the metallurgical furnace lining waste will be squeezed and crushed, thereby ensuring the complete separation of the metallurgical furnace lining waste and the copper sheet blocks. It should be noted that the shearing cooperation formed by the first toothed tool 21A and the second toothed tool 21B does not strictly require seamless cooperation like the blades of daily scissors that fit each other, but the rotating surfaces of the blades that cooperate with each other on the first toothed tool 21A and the second toothed tool 21B maintain a suitable spacing, because as long as the copper sheet block is deformed, the mutual misalignment phenomenon between the bonding surface of the metallurgical furnace lining waste will occur, and the separation between the two is inevitable. The copper sheet block only needs to be deformed without being sheared into fragments, and the service life of the first toothed tool 21A and the second toothed tool 21B can be increased. In addition, the design of the same specifications and sizes of the first toothed tool 21A and the second toothed tool 21B can significantly reduce the processing cost of spare parts and reduce the reserve of spare parts.

[0010] Since the first toothed cutter 21A and the second toothed cutter 21B have the same shape and size, only the specific structure of the first toothed cutter 21A will be described in detail below.

[0011] like Figure 3 As shown, the cutting edge of the first toothed cutter 21A includes a first radial cutting edge 211A, and the cutting edge of the first toothed cutter 21A includes a first axial cutting edge 212A.

[0012] The first radial cutting edge 211A is the intersection line between the tooth front side 22A and the disc surfaces on both sides of the first disc cutter 20A.

[0013] The first axial cutting edge 212A is the intersection line between the tooth front surface 213A and the tooth top surface 214A or the tooth back surface 215A.

[0014] The first disc cutter 20A is made of tool steel plate. Figure 3 It can be seen that the first toothed tool 21A has 5 teeth, each tooth has 2 first radial blades 211A. When the first radial blade 211A on one side is damaged, it is replaced with the first radial blade 211A on the other side for cooperation, which can significantly improve the service life of the first disc cutter 20A; the main function of the first axial blade 212A is to initially clamp the material block, especially the relatively smooth surface of the copper sheet block faces the first axial blade 212A. The first axial blade 212A can ensure that it is clamped to prevent it from rolling and falling into the area where the straight roller sleeve 30 is located and difficult to be broken in time.

[0015] See also Figure 1 , 4a As shown in , 4b, and 4c, the first rotating shaft 10A and the second rotating shaft 10B rotate in the opposite direction with the linear velocity of the adjacent side downward. More specifically, the first rotating shaft 10A and the second rotating shaft 10B rotate in the opposite direction with the linear velocity of the adjacent side downward. When the blade ends of the first radial blade 211A and the second radial blade 211B located at the top of the tooth are close to overlap, the first radial blade 211A and the second radial blade 211B enclose an angular area A with the opening downward. During the rotation of the rotating shaft 10, the angle between the first radial blade 211A and the second radial blade 211B changes from small to large. The clamping opening between the first radial blade 211A and the second radial blade 211B changes from large to small to clamp the material block. As the first radial blade 211A and the second radial blade 211B gradually approach, the material block is clamped. Figure 4a , 4b As shown, if there is material containing copper flakes in the angular area A, the copper flakes will inevitably be folded and accompanied by further fragmentation of the furnace lining waste, and the separation of the copper flakes and the furnace lining waste will become inevitable.

[0016] like Figure 6a , 6b As shown in 6c, the rolling sleeve 30 is a single cam, a double cam, a triple cam, a quadruple cam or a petal-shaped cam. In order to adapt to the number of teeth of the first toothed tool 21A, the number of cams of the rolling sleeve 30 is selected accordingly. It should be noted that the long diameter circumferential surface of the cam on the rolling sleeve 30 is located in the area between adjacent teeth of the first toothed tool 21A in the circumferential direction.

[0017] More specifically, the circumferential surface of the first rolling sleeve 30A constitutes the first rolling surface 31A and the first rolling surface 31A is parallel to the axial direction of the first rotating shaft 10. During the rotation of the first rotating shaft 10A and the second rotating shaft 10B, the spacing between the first rolling sleeve 30A and the first rolling surface 31A and the first rolling surface 31B adjacent to the second rolling sleeve 30B at the same axial position on the first rotating shaft 10A and the second rotating shaft 10B is equal. In this way, the crushing degree of the furnace lining waste can be basically consistent, avoiding a large amount of powder when it is broken.

[0018] In addition, the rolling surface 31 is evenly distributed with small conical teeth 311, which can improve the anti-slip performance between the rolling surface 31 and the material. The sliding of the material between the two rolling surfaces 31 will seriously affect the breakage efficiency.

[0019] The axial dimension of the first disc cutter 20A is smaller than the axial dimension of the first roller-pressing sleeve 30A, and the axial dimension of the second disc cutter 20B is smaller than the axial dimension of the second roller-pressing sleeve 30B. This scheme firstly ensures that the first disc cutter 20A and the second disc cutter 20B at the corresponding axial positions cooperate with each other and avoid interference with other first disc cutters 20A or second disc cutters 20B. At the same time, there is enough space between the cooperating first roller-pressing sleeve 30A and the second roller-pressing sleeve 30B beside the cooperating first disc cutter 20A and the second disc cutter 20B to receive materials in time.

[0020] The first disc cutters 20A and the first rolling sleeves 30A are alternately arranged on the first rotating shaft 10 and the axial end surfaces of the first disc cutters 20A and the first rolling sleeves 30A abut against each other.

[0021] An axial limiting fit is formed between the outer end surface of the first disc cutter 20A or the first rolling sleeve 30A at the outermost end in the axial direction and the first rotating shaft 10A, and the limiting fit at at least one end is a detachable fit.

[0022] The above solution solves the problems of axial positioning and installation and disassembly of the first disc cutter 20A and the first rolling sleeve 30A.

[0023] Preferably, the radius of the tooth top circle of the first toothed cutter 21A is 20-30 mm greater than the radius of the large diameter circle of the first rolling sleeve 30A, and the spacing between the rotating surfaces of the first radial blade 211A and the second radial blade 211B on the first toothed cutter 21A and the second toothed cutter 21B is 2-3 mm. The spacing between the rotating surfaces of the first radial blade 211A and the second radial blade 211B defined in this solution ensures effective folding of the copper block without cutting or shearing the copper block, thereby achieving separation of the copper block from the furnace lining waste and eliminating the need for frequent tool repair operations.

Claims

1. A copper smelting waste refractory material processing device, characterized by: It comprises a first rotating shaft (10A) and a second rotating shaft (10B) which are parallel to each other and arranged at intervals, and the axis cores of the first rotating shaft (10A) and the second rotating shaft (10B) are coplanar and located in a horizontal plane; A first disc knife (20A) and a first roller pressing sleeve (30A) are arranged on the first rotating shaft (10A), and the first disc knife (20A) and the first roller pressing sleeve (30A) form a circumferential synchronous rotation and axial limit fit with the first rotating shaft (10A); a second disc knife (20B) and a second roller pressing sleeve (30B) are arranged on the second rotating shaft (10B), and the second disc knife (20B) and the second roller pressing sleeve (30B) form a circumferential synchronous rotation and axial limit fit with the second rotating shaft (10B); The blades of the first disc knife (20A) and the adjacent sides of the second disc knife (20B) at corresponding positions on the first rotating shaft (10A) and the second rotating shaft (10B) form a shearing fit, and the circumferential roller surfaces of the first roller pressing sleeve (30A) and the second roller pressing sleeve (30B) at corresponding positions on the first rotating shaft (10A) and the second rotating shaft (10B) form a first roller pressing surface (31A) and a second roller pressing surface (31B) for extruding the material; During the rotation of the first rotating shaft (10A) and the second rotating shaft (10B), the trajectories of the first disc cutter (20A) and the second roller pressing sleeve (30B), and the trajectories of the first roller pressing sleeve (30A) and the second disc cutter (20B) avoid each other.

2. The copper-smelting waste refractory material processing device according to claim 1 is characterized in that: A first toothed tool (21A) is circumferentially distributed at the edge of the first disc cutter (20A), and a second toothed tool (21B) is circumferentially distributed at the edge of the second disc cutter (20B). The first toothed tool (21A) and the second toothed tool (21B) have the same shape and size, and are arranged in a mirror image on the symmetry plane of the first rotating shaft (10A) and the second rotating shaft (10B).

3. The copper-smelting waste refractory material processing device according to claim 2 is characterized in that: The cutting edge of the first toothed cutter (21A) comprises a first radial cutting edge (211A).

4. The copper-smelting waste refractory material processing device according to claim 3 is characterized in that: The cutting edge of the first toothed cutter (21A) comprises a first axial cutting edge (212A).

5. The copper-smelting waste refractory material processing device according to claim 1, 2, 3 or 4, characterized in that: The first rotating shaft (10A) and the second rotating shaft (10B) rotate in opposite directions with the linear speed of the adjacent side being downward.

6. The copper-smelting waste refractory material processing device according to claim 1, 2, 3 or 4, characterized in that: The first rotating shaft (10A) and the second rotating shaft (10B) rotate in opposite directions downward at a linear speed on the adjacent side. When the blade ends of the first radial blade (211A) and the second radial blade (211B) that cooperate with each other and are located at the top of the teeth are close to overlapping, the first radial blade (211A) and the second radial blade (211B) enclose an angular area (A) with an opening downward. During the rotation process of the rotating shaft (10), the angle between the first radial blade (211A) and the second radial blade (211B) changes from small to large.

7. The copper-smelting waste refractory material processing device according to claim 3 is characterized by: The first radial blade (211A) is the intersection line between the tooth front side (22A) and the disc surfaces on both sides of the first disc cutter (20A).

8. The copper-smelting waste refractory material processing device according to claim 4 is characterized in that: The first axial blade (212A) is the intersection line between the tooth front surface (213A) and the tooth top surface (214A) or the tooth back surface (215A).

9. The copper-smelting waste refractory material processing device according to claim 1, characterized in that: The rolling sleeve (30) is a single cam, a double cam, a triple cam, a quadruple cam or a petal-shaped cam.

10. The copper-smelting waste refractory material processing device according to claim 1, characterized in that: The axial dimension of the first disc cutter (20A) is smaller than the axial dimension of the first roller sleeve (30A), and the axial dimension of the second disc cutter (20B) is smaller than the axial dimension of the second roller sleeve (30B).

11. The copper-smelting waste refractory material processing device according to claim 1 or 10, characterized in that: The first disc cutters (20A) and the first roller sleeve (30A) are alternately arranged on the first rotating shaft (10), and the axial end surfaces of the first disc cutters (20A) and the first roller sleeve (30A) abut against each other.

12. The copper-smelting waste refractory material processing device according to claim 1, characterized in that: An axial limiting fit is formed between the outer end surface of the first disc cutter (20A) or the first rolling sleeve (30A) at the outermost end in the axial direction and the first rotating shaft (10A), and the limiting fit at at least one end is a detachable fit.

13. The copper-smelting waste refractory material processing device according to claim 8, 9 or 10, characterized in that: The circumferential surface of the first rolling sleeve (30A) constitutes a first rolling surface (31A) and the first rolling surface (31A) is parallel to the axial direction of the first rotating shaft (10). During the rotation of the first rotating shaft (10A) and the second rotating shaft (10B), the spacing between the first rolling sleeve (30A) at the same axial position on the first rotating shaft (10A) and the second rotating shaft (10B), the first rolling surface (31A) on the second rolling sleeve (30B), and the adjacent positions of the first rolling surface (31B) are equal.

14. The copper-smelting waste refractory material processing device according to claim 8, 9 or 10, characterized in that: Small conical teeth (311) are evenly distributed on the rolling surface (31).

15. The copper-smelting waste refractory material processing device according to claim 2, 3 or 9, characterized in that: The radius of the tooth top circle of the first toothed tool (21A) is 20 to 30 mm greater than the radius of the large diameter circle of the first rolling sleeve (30A), and the spacing between the rotating surfaces of the first radial blade (211A) and the second radial blade (211B) on the first toothed tool (21A) and the second toothed tool (21B) is 2 to 3 mm.

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