Treatment device for copper smelting waste refractory material

Abstract

The utility model 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 utility model relates to copper smelting consumable's processing equipment, specifically speaking is the processing device of the waste refractory material produced in the copper smelting process. BACKGROUND

[0002] Recycling of smelting waste is not only the urgent demand of resource recycling but also the basic task of meeting environmental regulations. Some refractory linings are usually used in the copper smelting process, including metallurgical furnace lining, chute lining, etc. The types and material compositions of refractory linings in different parts are not the same, such as magnesium-chromium brick, high-alumina brick, silicon carbide brick, chrome corundum brick, and temperature-resistant cast material. These refractory materials are in contact with high-temperature melt during use, and the copper matte or blister copper melt inevitably penetrates into the interior. Therefore, a large amount of copper metal will be taken away during the maintenance and replacement of these linings. In order to recover this part of copper, people have tried to use ore grinding and beneficiation methods, but due to the influence of magnesium and other impurities, the recovery rate is not high, and the copper loss is large. Therefore, most smelting plants currently still use manual sorting to pick out the parts with obvious copper content and return them to the smelting furnace, and the parts with no obvious copper content are sold as waste. This not only has a large amount of manual sorting work and a poor environment with a lot of dust, but also manual sorting cannot distinguish and pick out fine particles of copper, resulting in the loss of some copper. Since a considerable part of the furnace bricks are sintered into blocks in a high-temperature environment, the blocks cannot be directly returned to the furnace, so the large blocks of slag are usually first crushed by a jaw crusher and then the coarse particles are returned to the converter. Since the material usually contains some large-size copper, the jaw crusher must be manually picked out in advance to ensure normal operation of the crusher. This not only has a large amount of manual labor and low efficiency, but also often causes the phenomenon that the large-size copper missed in the picking process enters the jaw crusher cavity and even damages the crusher. At the same time, if the fine particles of powder are directly added to the smelting operation, they will be lost with the smoke and dust. If manual screening is used, not only is the labor intensity too large and the efficiency too low, but also the working environment is very poor. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the utility model is to provide a processing device for copper smelting waste refractory materials, which crushes metallurgical furnace lining and chute lining with coarse copper or blister copper or anode copper piece blocks adhered and mixed, to improve the efficiency of the downstream screening process.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a copper smelting waste refractory material processing device, characterized by comprising first rotating shafts and second rotating shafts arranged in parallel and at intervals, and the shaft cores of the first rotating shafts and the second rotating shafts are coplanar on the horizontal plane.

[0005] The first rotary shaft is provided with a first disc cutter and a first roller pressing sleeve, and the first disc cutter and the first roller pressing sleeve are in circumferential synchronous rotation and axial limiting cooperation with the first rotary shaft; the second rotary shaft is provided with a second disc cutter and a second roller pressing sleeve, and the second disc cutter and the second roller pressing sleeve are in circumferential synchronous rotation and axial limiting cooperation with the second rotary shaft.

[0006] The first disc cutter and the second disc cutter at the corresponding positions on the first rotary shaft and the second rotary shaft are in shearing cooperation with the adjacent cutting edges, and the first roller pressing sleeve and the second roller pressing sleeve at the corresponding positions on the first rotary shaft and the second rotary shaft are in extruding cooperation with the circumferential roller surfaces.

[0007] During the rotation of the first rotary shaft and the second rotary shaft, the trajectory of the first disc cutter and the second roller pressing sleeve and the trajectory of the first roller pressing sleeve and the second disc cutter are mutually avoided.

[0008] In the above technical scheme, the first rotary shaft is provided with a first disc cutter and a first roller pressing sleeve, the second rotary shaft is provided with a second disc cutter and a second roller pressing sleeve, the first disc cutter and the second disc cutter are in shearing cooperation, and the first roller pressing sleeve and the second roller pressing sleeve are in roller pressing cooperation. Large-sized waste is cut and fragmented by the disc cutters in shearing cooperation, which ensures that the fragmented waste can be smoothly transported to the first roller pressing sleeve and the second roller pressing sleeve for further roller pressing and fragmentation, the waste is discharged from large to small to meet the screening requirement of a downstream screening device, and the waste is simultaneously separated from coarse copper or matte or anode copper piece blocks and metallurgical furnace lining waste during the fragmentation process, so that the copper piece blocks and the furnace lining waste can be separated by subsequent simple screening. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a perspective view of the utility model;

[0010] Figure 2 is a top view of the utility model;

[0011] Figure 3 is a perspective view of the first disc cutter in the utility model;

[0012] Figure 4a 、 4b , 4c are schematic views of working processes respectively, wherein 4b shows a device shell, and other views omit the shell;

[0013] Figure 5 is a schematic view of roller pressing sleeve cooperation states in a working process;

[0014] Figure 6a 、 6b , 6c is a three specific implementation scheme view of the roller pressing sleeve. DETAILED DESCRIPTION

[0015] The copper smelting waste refractory material is transported to the copper smelting waste refractory material processing device provided by the application by the conveying mechanism and the shovel equipment, see Figure 1 、 2 , 4b, the processing device comprises a shell 1, the shell 1 internally contains first rotating shaft 10A, second rotating shaft 10B arranged in parallel with each other, and the shaft cores of the first rotating shaft 10A and the second rotating shaft 10B are coplanar in the horizontal plane.

[0016] The first rotating shaft 10A is provided with a first disc cutter 20A and a first roller pressing sleeve 30A, and the first disc cutter 20A and the first roller pressing sleeve 30A are in circumferential synchronous rotation and axial limiting cooperation with the first rotating shaft 10A; the second rotating shaft 10B is provided with a second disc cutter 20B and a second roller pressing sleeve 30B, and the second disc cutter 20B and the second roller pressing sleeve 30B are in circumferential synchronous rotation and axial limiting cooperation with the second rotating shaft 10B.

[0017] The cutting edges 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 constitute shearing cooperation, and the circumferential roller surfaces of the first roller pressing sleeve 30A and the second roller pressing sleeve 30B at the corresponding positions on the first rotating shaft 10A and the second rotating shaft 10B constitute first roller pressing surfaces 31A and second roller pressing surfaces 31B for implementing extrusion on the materials.

[0018] 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 first roller pressing sleeve 30A and the second disc cutter 20B are mutually avoided.

[0019] The copper smelting waste refractory material enters from the upper end inlet of the shell 1, and during the rotation of the first rotating shaft 10A and the second rotating shaft 10B, first, the large-size materials are broken into medium-size materials under the shearing action of the first disc cutter 20A and the second disc cutter 20B, the broken medium-size materials are directly moved to the roller pressing area formed by the first roller pressing surface 31A and the second roller pressing surface 31B on the side to be further broken into small-size materials, which ensures the effective separation of the copper pieces and the metallurgical furnace lining waste, and the copper pieces and the metallurgical furnace lining waste can be separated by simple screening operation of the subsequent screening device, the device not only solves the separation of the copper pieces and the metallurgical furnace lining waste, but also realizes the crushing of the metallurgical furnace lining waste, significantly improves the processing efficiency of the metallurgical furnace lining waste with adhered and mixed copper pieces, and improves the recovery rate of copper.

[0020] In order to improve the separation effect of copper sheet block and furnace lining waste, the first disc cutter 20A and the second disc cutter 20B are cooperated to achieve the separation effect. Preferably, the edge of the first disc cutter 20A is circumferentially distributed with the first tooth-shaped cutter 21A, and the edge of the second disc cutter 20B is circumferentially distributed with the second tooth-shaped cutter 21B. The shape and size of the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B are consistent, and the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B are symmetrically arranged with the first rotation shaft 10A and the second rotation shaft 10B. The tooth shape of the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B can form a bayonet-shaped constraint area, which ensures that the material reaching between the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B is first clamped and constrained between the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B. The material clamped and constrained by the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B will be twisted and deformed during the relative rotation of the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B. At the same time, the metallurgical furnace lining waste will be crushed. Thus, the metallurgical furnace lining waste and the copper sheet block are completely separated. It should be noted that the shearing cooperation of the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B is not strictly required to be seamless cooperation like the mutual adhesion of the blades of a daily-use scissors. Instead, the rotary surfaces of the mutually cooperating blades of the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B maintain a suitable spacing. Because the copper sheet block will be deformed, the mutual misalignment between the copper sheet block and 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 cut into fragments, which can improve the service life of the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B. In addition, the same size design of the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B can significantly reduce the processing cost of spare parts and reduce the storage of spare parts.

[0021] Since the shape and size of the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B are the same, only the specific structure of the first tooth-shaped cutter 21A will be described below.

[0022] As shown in Figure 3 , the blade of the first tooth-shaped cutter 21A includes a first radial blade 211A, and the blade of the first tooth-shaped cutter 21A includes a first axial blade 212A.

[0023] The first radial blade 211A is the intersection line of the tooth front surface 213A and the disc surface on both sides of the first disc cutter 20A.

[0024] The first axial blade 212A is the intersection line of the tooth front surface 213A and the tooth crest surface 214A or the tooth back surface 215A.

[0025] The first disc cutter 20A is made of tool steel plate, and has a first tooth profile cutter 21A and a first shaft 10A. Figure 3 As shown in the figure, the first tooth profile cutter 21A has five tooth portions, and each tooth portion has two first radial cutting edges 211A. When one side of the first radial cutting edge 211A is damaged, the other side of the first radial cutting edge 211A can be replaced to cooperate, which can significantly improve the service life of the first disc cutter 20A. The main function of the first axial cutting edge 212A is to preliminarily clamp the material block. Especially, the relatively smooth surface of the copper sheet block faces the first axial cutting edge 212A, and the first axial cutting edge 212A can ensure that it is clamped to avoid rolling and falling off the area where the roller pressing sleeve 30 is located, so as to be difficult to be broken in time.

[0026] As shown in Figure 1 , 4a , 4b, 4c, the first shaft 10A and the second shaft 10B are reversely rotated in the direction of the line speed of the adjacent side downward. More specifically, the first shaft 10A and the second shaft 10B are reversely rotated in the direction of the line speed of the adjacent side downward, and the blade ends of the first radial cutting edge 211A and the second radial cutting edge 211B located at the tooth top portion are adjacent to each other. When the first radial cutting edge 211A and the second radial cutting edge 211B enclose an opening downward, the angle between the first radial cutting edge 211A and the second radial cutting edge 211B changes from small to large. The gap between the first radial cutting edge 211A and the second radial cutting edge 211B is clamped to hold the material block, and as the first radial cutting edge 211A and the second radial cutting edge 211B gradually approach, the gap between the first radial cutting edge 211A and the second radial cutting edge 211B is gradually reduced. Figure 4a , 4b If there is material containing copper sheet blocks in the angular region A, the copper sheet blocks will be inevitably folded and further fragmented with the furnace lining waste, and the copper sheet blocks and the furnace lining waste will be inevitably separated from each other.

[0027] As shown in Figure 6a , 6b , 6c, the roller pressing 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 tooth profile cutter 21A, the number of cams of the roller pressing sleeve 30 is correspondingly selected. It should be noted that the long diameter circumferential surface of the cam on the roller pressing sleeve 30 is located in the area between the adjacent teeth of the first tooth profile cutter 21A in the circumferential direction.

[0028] More specifically, the peripheral surface of the first roller sleeve 30A constitutes a first roller surface 31A, and the first roller surface 31A is parallel to the axial direction of the first rotating shaft 10A. During the rotation of the first rotating shaft 10A and the second rotating shaft 10B, the first roller surface 31A and the second roller surface 31B at the same axial position on the first roller sleeve 30A and the second roller sleeve 30B are adjacent to each other, and the distance between them is equal. In this way, the degree of crushing of the furnace lining waste can be kept basically consistent, and a large amount of powder can be avoided when the damage occurs.

[0029] In addition, the roller surface 31 is uniformly distributed with small conical teeth 311, which can improve the anti-skid performance between the roller surface 31 and the material. The sliding of the material between the two roller surfaces 31 will seriously affect the damage efficiency.

[0030] The axial size of the first disc cutter 20A is smaller than the axial size of the first roller sleeve 30A, and the axial size of the second disc cutter 20B is smaller than the axial size of the second roller sleeve 30B. This scheme first ensures that the first disc cutter 20A and the second disc cutter 20B at the corresponding axial position 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 first roller sleeve 30A and the second roller sleeve 30B on the side of the first disc cutter 20A and the second disc cutter 20B to timely receive the material.

[0031] The first disc cutter 20A and the first roller sleeve 30A are alternately arranged on the first rotating shaft 10A, and the axial end faces of the first disc cutter 20A and the first roller sleeve 30A abut against each other.

[0032] The outer end face of the first disc cutter 20A or the first roller sleeve 30A at the outermost end in the axial direction and the first rotating shaft 10A constitute an axial limiting fit, and at least one end of the limiting fit is a detachable fit.

[0033] The above scheme solves the problem of axial positioning and installation and disassembly of the first disc cutter 20A and the first roller sleeve 30A.

[0034] Preferably, the addendum circle radius of the first tooth-shaped cutter 21A is 20-30mm larger than the radius of the large diameter circle of the first roller sleeve 30A, and the distance between the rotary surfaces of the first radial cutter 211A and the second radial cutter 211B on the first tooth-shaped cutter 21A and the second tooth-shaped cutter 21B is 2-3mm. The size of the distance between the rotary surfaces of the first radial cutter 211A and the second radial cutter 211B defined by the scheme ensures effective folding of the copper piece block without implementing cutting or cutting type shearing operation on the copper piece block, realizes the separation of the copper piece block and the furnace lining waste, and also eliminates the need for frequent cutter repair operation.

Claims

1. A device for the treatment of copper smelting waste refractory material, characterised in that: The first rotating shaft (10A) and the second rotating shaft (10B) are arranged in parallel and are spaced apart, and the shaft 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 pressing sleeve (30A), and the first disc cutter (20A) and the first roller pressing sleeve (30A) are in circumferential synchronous rotation and axial limiting cooperation with the first rotating shaft (10A); the second rotating shaft (10B) is provided with a second disc cutter (20B) and a second roller pressing sleeve (30B), and the second disc cutter (20B) and the second roller pressing sleeve (30B) are in circumferential synchronous rotation and axial limiting cooperation with the second rotating shaft (10B). The first disc cutter (20A) and the second disc cutter (20B) at the corresponding positions of the first rotating shaft (10A) and the second rotating shaft (10B) are in shearing cooperation with the adjacent cutting edges, and the circumferential roller surfaces of the first roller pressing sleeve (30A) and the second roller pressing sleeve (30B) at the corresponding positions of the first rotating shaft (10A) and the second rotating shaft (10B) form first roller pressing surfaces (31A) and second roller pressing surfaces (31B) for pressing materials. During the rotation of the first rotating shaft (10A) and the second rotating shaft (10B), the first disc cutter (20A) and the second roller pressing sleeve (30B), and the first roller pressing sleeve (30A) and the second disc cutter (20B) are in trajectory avoidance.

2. The apparatus for treating copper smelting waste refractory material according to claim 1, characterized in that: The first disc cutter (20A) is circumferentially distributed with first tooth-shaped cutters (21A) at the edges thereof, the second disc cutter (20B) is circumferentially distributed with second tooth-shaped cutters (21B) at the edges thereof, the first tooth-shaped cutters (21A) and the second tooth-shaped cutters (21B) are identical in shape and size, and the first tooth-shaped cutters (21A) and the second tooth-shaped cutters (21B) are arranged in mirror image with the symmetry plane of the first rotating shaft (10A) and the second rotating shaft (10B).

3. The apparatus for treating copper smelting waste refractory material according to claim 2, characterized in that: The cutting edge of the first tooth-shaped cutter (21A) comprises a first radial cutting edge (211A).

4. The apparatus for treating copper smelting waste refractory material according to claim 3, characterized in that: The cutting edge of the first tooth-shaped cutter (21A) comprises a first axial cutting edge (212A).

5. The apparatus for treating copper smelting waste refractory material according to claim 1 or 2 or 3 or 4, characterised in that: The first rotating shaft (10A) and the second rotating shaft (10B) are in reverse rotation with the linear velocity of the adjacent sides being downward.

6. The apparatus for treating copper smelting waste refractory material according to claim 1 or 2 or 3 or 4, characterised in that: The first rotating shaft (10A) and the second rotating shaft (10B) are in reverse rotation with the linear velocity of the adjacent sides being downward, the cutting edges of the first radial cutting edge (211A) and the second radial cutting edge (211B) at the tooth top portion are adjacent to each other, and when the cutting edges of the first radial cutting edge (211A) and the second radial cutting edge (211B) are adjacent to each other, the first radial cutting edge (211A) and the second radial cutting edge (211B) enclose an opening downward angular region (A), and the included angle between the first radial cutting edge (211A) and the second radial cutting edge (211B) changes from small to large during the rotation of the rotating shaft (10).

7. The apparatus for treating copper smelting waste refractory material according to claim 3, characterized in that: The first radial cutting edge (211A) is a tangent line of the tooth front surface (213A) and the disc surface on both sides of the first disc cutter (20A).

8. The apparatus for treating copper smelting waste refractory material according to claim 4, characterized in that: The first axial cutting edge (212A) is a tangent line of the tooth front surface (213A) and the tooth top surface (214A) or the tooth back surface (215A).

9. The apparatus for treating copper smelting waste refractory material according to claim 1, characterized in that: The roller pressing sleeve (30) is a single cam, a double cam, a three-cam, a four-cam or a petal-shaped cam.

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

11. The apparatus for treating copper smelting waste refractory material according to claim 1 or 10, characterised in that: The first disc cutter (20A) and the first roller sleeve (30A) are alternately arranged on the first rotating shaft (10A), and the axial end faces of the first disc cutter (20A) and the first roller sleeve (30A) abut against each other.

12. The apparatus for treating copper smelting waste refractory material according to claim 1, characterized in that: The outer end face of the first disc cutter (20A) or the first roller sleeve (30A) at the outermost end in the axial direction is in axial limiting fit with the first rotating shaft (10A), and the limiting fit at at least one end is detachable.

13. The apparatus for treating copper smelting waste refractory material according to claim 8 or 9 or 10, characterised in that: The peripheral surface of the first roller sleeve (30A) forms a first roller surface (31A), and the first roller surface (31A) is parallel to the axial direction of the first rotating shaft (10A). During rotation of the first rotating shaft (10A) and the second rotating shaft (10B), the distance between the first roller surface (31A) on the first roller sleeve (30A) and the second roller surface (31B) on the second roller sleeve (30B) at the same axial position on the first rotating shaft (10A) and the second rotating shaft (10B) is equal.

14. The apparatus for treating copper smelting waste refractory material according to claim 8 or 9 or 10, characterised in that: The roller surface (31) is uniformly provided with small taper teeth (311).

15. A copper smelting waste refractory material treatment apparatus according to claim 2 or 3 or 9, characterized in that: The radius of the addendum circle of the first tooth-shaped cutter (21A) is 20-30 mm larger than the radius of the large-diameter circle of the first roller sleeve (30A), and the distance between the rotary surface of the first radial cutting edge (211A) and the second radial cutting edge (211B) on the first tooth-shaped cutter (21A) and the second tooth-shaped cutter (21B) is 2-3 mm.

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