Metallic copper pyrogenic process continuous refining device

Abstract

The utility model discloses a metallic copper pyrogenic process continuous refining device which comprises a bottom plate, a material pouring assembly, a conveying belt and a casting block, a furnace body, a material receiving box and a quantifying tank are sequentially arranged on the top face of the bottom plate from left to right, and a first discharging pipe and a second discharging pipe are arranged on the surface of the furnace body and the surface of the quantifying tank respectively. The bottom face of the furnace body and the bottom face of the quantitative tank are connected with the top face of the bottom plate through a material pouring assembly, and an overflow pipe is installed at the upper end of the surface of the quantitative tank. According to the quantitative metal copper casting device, the quantitative tank is arranged, the quantitative effect can be achieved in the casting process, the consistency of cast metal copper is guaranteed, meanwhile, redundant metal copper can flow into the material receiving box through the overflow pipe to be collected and reused, waste is avoided, and the quantitative metal copper casting device is high in practicability and worthy of popularization. According to the multi-station casting device, the multiple quantitative tanks are arranged, multi-station casting can be conducted, the casting effect and efficiency are greatly improved, practicability is high, and the multi-station casting device is worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of metal copper refining devices, in particular to a continuous pyrometallurgical refining device for metal copper. Background Art

[0002] The pyrometallurgical process of copper generally includes three steps: copper concentrate smelting, copper matte converting, and blister copper refining. The blister copper produced by copper matte converting generally contains 98.5 - 99.5% copper, and the remaining impurity elements include sulfur, oxygen, iron, arsenic, antimony, zinc, tin, lead, bismuth, nickel, cobalt, etc. Usually, it also contains rare and scattered metals and precious metals such as selenium, tellurium, gold, and silver. Impurity elements will have an adverse impact on the electrical conductivity and mechanical properties of copper, while valuable elements such as rare and scattered metals and precious metals need to be comprehensively recovered to improve resource utilization rate. The purpose of blister copper pyrometallurgical refining is, on the one hand, to remove impurity elements as much as possible to reduce the impact of impurity elements on electrolytic refining; on the other hand, to cast anode plates with a flat, smooth, uniform thickness, no burrs, and good hanging verticality to meet the process requirements of electrolytic refining. Blister copper pyrometallurgical refining mainly includes two processes: oxidation and reduction. In the oxidation stage, at high temperature, an oxidant is sent into the molten blister copper. First, Cu in the melt is oxidized to Cu2O, and then Cu2O reacts with other metal impurity elements to oxidize them. The generated metal oxides have low solubility in the copper water and are lighter in specific gravity, so they can quickly float to the liquid surface to form slag and be discharged. After oxidation is completed, the copper liquid contains 0.5 - 1.5% oxygen, which will precipitate in the form of Cu2O during solidification and distribute at the grain boundaries of Cu, causing harm to electrolytic refining and requiring reduction and deoxidation. In the reduction stage, at high temperature, a reducing agent is sent into the copper liquid, and the reducing agent reacts with Cu2O in the melt to deoxidize. When the oxygen content in the copper liquid drops to 0.1 - 0.2%, casting can be carried out. Currently, reverberatory furnaces, rotary refining furnaces, and tilting furnaces are commonly used for blister copper pyrometallurgical refining at home and abroad. Among them, the reverberatory furnace has low automation, high labor intensity for manual inserting pipes for oxidation and reduction, a lot of flue gas leakage resulting in a poor working environment, high energy consumption, and low production efficiency; the rotary refining furnace has a high level of automation, a large processing capacity, and relatively high production efficiency. However, due to its deep molten pool, small heating area, and slow melting of materials, it is not suitable for processing cold materials, and the converter control system is complex; the tilting furnace combines the characteristics of the reverberatory furnace and the rotary refining furnace, but the furnace body has a special shape, complex structure, high investment, and when operating, the furnace body tilts, which has a greater impact on the stability of the furnace top and furnace wall. More importantly, these three widely used blister copper pyrometallurgical refining processes have a common drawback, that is, they are cyclic operations, and the refining process is divided into four cycles: feeding and melting period, oxidation and slag skimming period, reduction period, and casting period.

[0003] The existing technologies have the following problems:

[0004] After a large number of searches, it is found that the Chinese patent publication number: CN218693823U discloses a continuous fire refining device for blister copper, including a bottom plate. A pouring component is fixedly connected to the top of the bottom plate. A furnace body is rotatably connected to the top of the pouring component. An outlet hole is opened on the left side of the furnace body. An outlet plate is fixedly connected to the inner bottom wall of the outlet hole. A first support block is fixedly connected to the top of the bottom plate. A first roller shaft plate is fixedly connected to the top of the first support block. A second support block located to the right of the first roller shaft plate is fixedly connected to the top of the bottom plate. A placement plate is fixedly connected to the top of the second support block. An L-shaped block is fixedly connected to the top of the placement plate. A rectangular groove is opened on the front surface of the horizontal end of the L-shaped block. A first cylinder extending into the rectangular groove is fixedly connected to the top of the placement plate. A push plate is fixedly connected to the front surface of the first cylinder. This continuous fire refining device for blister copper has the advantages of rapid casting, etc.

[0005] However, there are still problems that need to be improved in the actual use of the above patent. More obviously, it is not convenient to carry out quantification during the casting process, and it is difficult to ensure the consistency of the molten copper after casting.

[0006] Therefore, we propose a continuous fire refining device for molten copper to solve the above drawbacks. Utility Model Content

[0007] The purpose of the present utility model is to propose a continuous fire refining device for molten copper to solve the shortcomings existing in the prior art.

[0008] To achieve the above purpose, the present utility model adopts the following technical solution: A continuous fire refining device for molten copper, including a bottom plate, a pouring component, a conveyor belt and a casting block. The top surface of the bottom plate is sequentially provided with a furnace body, a receiving box and a quantitative tank from left to right. A first discharge pipe and a second discharge pipe are respectively arranged on the surfaces of the furnace body and the quantitative tank. The bottom surfaces of the furnace body and the quantitative tank are both connected to the top surface of the bottom plate through the pouring component. An overflow pipe is installed at the upper end of the surface of the quantitative tank, and the other end of the overflow pipe extends above the receiving box. A number of casting blocks with the same structure are conveyed on the conveyor belt.

[0009] Preferably, the pouring component is composed of a reduction motor, a lead screw, a moving block, a chute, a slider, a first hinge, a connecting rod and a second hinge. The reduction motor is fixedly installed on the top surface of the bottom plate, and the output end of the reduction motor is provided with a lead screw. The surface of the lead screw is used in cooperation with the moving block. A chute is opened on the top surface of the bottom plate, and a slider is slidably connected in the chute. The top surface of the slider is welded to the bottom surface of the moving block. The top surfaces of the moving block and one side of the bottom surface of the furnace body are both provided with a first hinge, and a connecting rod is hinged between the two first hinges. The other sides of the bottom surfaces of the furnace body and the quantitative tank are hinged to the top surface of the bottom plate through the second hinge.

[0010] Preferably, there are four sets of the pouring components, and the four sets of pouring components are distributed in pairs on both sides of the bottom surfaces of the furnace body and the metering tank.

[0011] Preferably, a control switch is fixedly installed on the surface of the bottom plate, and the control switch is electrically connected to the reduction motor and the conveyor through wires.

[0012] Preferably, there are multiple casting blocks and metering tanks, and the multiple casting blocks and metering tanks correspond to each other one by one.

[0013] Preferably, the volumes of the multiple metering tanks are the same.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By arranging the metering tank in the present utility model, it can play a role in metering during the casting process, ensuring the consistency of the cast copper metal. At the same time, the setting of the overflow pipe can flow the excess copper metal into the receiving box for collection and reuse, avoiding waste, with strong practicability and worthy of popularization.

[0016] 2. By arranging multiple metering tanks in the present utility model, multi-station casting can be carried out, greatly improving the casting effect and efficiency, with strong practicability and worthy of popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of a continuous fire refining device for copper metal proposed by the present utility model;

[0019] Figure 2 It is a schematic structural diagram of the pouring component;

[0020] Figure 3 It is a three-dimensional view of the furnace body, the first discharge pipe, the metering tank, the second discharge pipe, the overflow pipe and the receiving box.

[0021] Legend Explanation:

[0022] 1. Bottom plate; 2. Furnace body; 3. First discharge pipe; 4. Quantitative tank; 5. Second discharge pipe; 6. Overflow pipe; 7. Material receiving box; 8. Conveyor belt; 9. Casting block; 10. Inverting component; 101. Reduction motor; 102. Lead screw; 103. Moving block; 104. Chute; 105. Slide block; 106. First hinge; 107. Connecting rod; 108. Second hinge; 11. Control switch. Detailed implementation manner

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] Please refer to Figures 1-3, A continuous pyrometallurgical refining device for metallic copper, comprising a bottom plate 1, a pouring component 10, a conveyor belt 8 and casting blocks 9. On the top surface of the bottom plate 1, a furnace body 2, a material receiving box 7 and a metering tank 4 are sequentially arranged from left to right. A first discharge pipe 3 and a second discharge pipe 5 are respectively arranged on the surfaces of the furnace body 2 and the metering tank 4. The bottom surfaces of the furnace body 2 and the metering tank 4 are both connected to the top surface of the bottom plate 1 through the pouring component 10. An overflow pipe 6 is installed at the upper end of the surface of the metering tank 4, and the other end of the overflow pipe 6 extends above the material receiving box 7. A number of casting blocks 9 with the same structure are conveyed on the conveyor belt 8. During use, referring to a continuous pyrometallurgical refining device for blister copper disclosed in Chinese Patent Publication No.: CN218693823U, it should be noted that the pouring component 10 is a common screw-thread block structure on the market, and its working principle is well-known and will not be elaborated here. By setting the metering tank 4, it can play a metering role during casting, ensuring the consistency of the metallic copper after casting. At the same time, the setting of the overflow pipe 6 can flow the excess metallic copper into the material receiving box 7 for collection and reuse, avoiding waste, with strong practicability and worthy of promotion. And by setting multiple metering tanks 4, multi-station casting can be carried out, greatly improving the casting effect and efficiency, with strong practicability and worthy of promotion.

[0026] In this embodiment: The pouring component 10 is composed of a reduction motor 101, a lead screw 102, a moving block 103, a chute 104, a slider 105, a first hinge 106, a connecting rod 107 and a second hinge 108. The reduction motor 101 is fixedly installed on the top surface of the bottom plate 1, and the output end of the reduction motor 101 is installed with the lead screw 102, and the surface of the lead screw 102 is used in cooperation with the moving block 103. A chute 104 is opened on the top surface of the bottom plate 1, and a slider 105 is slidably connected in the chute 104, and the top surface of the slider 105 is welded to the bottom surface of the moving block 103. First hinges 106 are installed on the top surface of the moving block 103 and one side of the bottom surface of the furnace body 2, and a connecting rod 107 is hinged between the two first hinges 106. The other sides of the bottom surfaces of the furnace body 2 and the metering tank 4 are hinged to the top surface of the bottom plate 1 through the second hinge 108.

[0027] Specifically, it is a common screw-thread block structure on the market, and its working principle is well-known and will not be elaborated here. It can lift and reset one end of the furnace body 2 and the metering tank 4, achieving the effect of pouring.

[0028] In this embodiment: A total of four groups of pouring components 10 are provided, and the four groups of pouring components 10 are distributed in two on both sides of the bottom surfaces of the furnace body 2 and the metering tank 4.

[0029] Specifically, it improves the stability during the pouring process of the furnace body 2 and the metering tank 4, and is not easy to shake and pour.

[0030] In this embodiment: A control switch 11 is fixedly installed on the surface of the bottom plate 1, and the control switch 11 is electrically connected to the reduction motor 101 and the conveyor belt 8 through wires.

[0031] Specifically, it is a common circuit connection structure and will not be elaborated here.

[0032] In this embodiment: There are multiple casting blocks 9 and metering tanks 4, and the multiple casting blocks 9 and metering tanks 4 correspond to each other one by one.

[0033] Specifically, the molten copper discharged from the multiple metering tanks 4 can be cast into the casting blocks 9.

[0034] In this embodiment: The volumes of the multiple metering tanks 4 are the same.

[0035] Specifically, it ensures the consistency after casting.

[0036] In this embodiment: The controller is of an existing structure, and the control circuit can be realized by simple programming by those skilled in the art, which belongs to the common knowledge in this field. Only its use is carried out without modification, so the control method and circuit connection will not be described in detail.

[0037] Working principle: During use, referring to a continuous fire refining device for blister copper disclosed in Chinese Patent Publication No.: CN218693823U, it should be noted that the tipping assembly 10 is a common screw-thread block structure on the market, and its working principle is well-known and will not be elaborated here. By setting the metering tank 4, it can play a metering role during casting to ensure the consistency of the molten copper after casting. At the same time, the overflow pipe 6 can flow the excess molten copper into the receiving box 7 for collection and reuse to avoid waste, with strong practicability and worthy of promotion. And by setting multiple metering tanks 4, multi-station casting can be carried out, greatly improving the casting effect and efficiency, with strong practicability and worthy of promotion.

[0038] It should be noted that: The model specifications of the reduction motor 101 and the conveyor belt 8 need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0039] The power supply and principle of the reduction motor 101 and the conveyor belt 8 are clear to those skilled in the art and will not be described in detail here.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A continuous pyrometallurgical refining device for metallic copper, comprising a bottom plate (1), a charging assembly (10), a conveyor belt (8) and a casting block (9), characterized in that, On the top surface of the bottom plate (1), a furnace body (2), a material receiving box (7), and a metering tank (4) are sequentially arranged from left to right. First discharge pipes (3) and second discharge pipes (5) are respectively arranged on the surfaces of the furnace body (2) and the metering tank (4). The bottom surfaces of the furnace body (2) and the metering tank (4) are both connected to the top surface of the bottom plate (1) through a pouring component (10). An overflow pipe (6) is installed at the upper end of the surface of the metering tank (4), and the other end of the overflow pipe (6) extends above the material receiving box (7). A plurality of casting blocks (9) with the same structure are conveyed on the conveyor belt (8).

2. The continuous pyrometallurgical refining device for metallic copper according to claim 1, characterized in that, The pouring component (10) is composed of a reduction motor (101), a lead screw (102), a moving block (103), a chute (104), a slider (105), a first hinge (106), a connecting rod (107), and a second hinge (108). The reduction motor (101) is fixedly installed on the top surface of the bottom plate (1), and the output end of the reduction motor (101) is provided with a lead screw (102). The surface of the lead screw (102) is used in cooperation with the moving block (103). A chute (104) is formed on the top surface of the bottom plate (1), and a slider (105) is slidably connected in the chute (104). The top surface of the slider (105) is welded to the bottom surface of the moving block (103). First hinges (106) are installed on the top surface of the moving block (103) and one side of the bottom surface of the furnace body (2), and a connecting rod (107) is hinged between the two first hinges (106). The other sides of the bottom surfaces of the furnace body (2) and the metering tank (4) are hinged to the top surface of the bottom plate (1) through a second hinge (108).

3. A continuous pyrometallurgical refining device for metallic copper according to claim 2, characterized in that, A total of four groups of the pouring components (10) are provided, and the four groups of pouring components (10) are distributed in two on both sides of the bottom surfaces of the furnace body (2) and the metering tank (4).

4. A continuous pyrometallurgical refining device for metallic copper according to claim 1, characterized in that, A control switch (11) is fixedly installed on the surface of the bottom plate (1), and the control switch (11) is electrically connected to the reduction motor (101) and the conveyor belt (8) through wires.

5. A continuous pyrometallurgical refining device for metallic copper according to claim 1, characterized in that, A plurality of the casting blocks (9) and the metering tanks (4) are provided, and the plurality of casting blocks (9) and the metering tanks (4) correspond to each other one by one.

6. The continuous pyrometallurgical refining device for metallic copper according to claim 1, characterized in that, The volumes of the plurality of metering tanks (4) are the same.

Images