Smelting furnace for efficiently refining copper and slag reducing method thereof

Abstract

The invention relates to the technical field of smelting furnaces, in particular to an efficient copper refining smelting furnace and a slag reducing method thereof.The efficient copper refining smelting furnace comprises supporting legs, a heating box and a supporting shell, a supporting plate is arranged at the tops of the supporting legs, and the supporting shell is arranged at the top of the heating box; the stirring mechanism comprises a motor, the motor is fixedly arranged in the supporting shell, a driving shaft is arranged at one end of the motor, and a plurality of groups of driving grooves are formed in the outer side of the driving shaft; the oxygen increasing mechanism comprises an extrusion component, the extrusion component comprises an extrusion rod, an extrusion block is arranged at one end of the extrusion rod, materials can be well stirred through the arranged stirring mechanism, uneven distribution of all elements in the smelting furnace is prevented, in the rotating process of the stirring mechanism, the stirring mechanism can intermittently reciprocate, and therefore the stirring efficiency is improved. Therefore, the mixing efficiency is improved, the oxygen supplementing efficiency of the oxygenation mechanism can be improved, and the combustion efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of smelting furnaces, and in particular to a smelting furnace for efficiently refining copper and a slag reduction method thereof. Background Art

[0002] The smelting of copper is a key link in the copper production process. Traditional smelting furnaces usually melt copper ore or scrap copper by fuel combustion or electric heating, and then separate impurities and extract pure copper through chemical reactions. However, traditional smelting furnaces have the following problems: Low smelting efficiency: Traditional smelting furnaces usually rely on fuel combustion or electric heating, and the temperature distribution in the furnace is uneven, resulting in a long smelting time and high energy consumption. For example, reverberatory furnace smelting takes a long time to completely melt copper ore, and the reaction rate in the furnace is slow, affecting the overall production efficiency. Low oxygen utilization rate: During the smelting process, oxygen is a key factor promoting oxidation reactions. Traditional methods usually introduce oxygen into the furnace through a blower or a lance, but due to uneven oxygen distribution, it is difficult to fully participate in the reaction. This not only reduces the oxygen utilization rate but also increases the difficulty of waste gas treatment. Incomplete slag separation: Slag is a by-product generated during the smelting process, which may contain unseparated copper and other valuable metals. In traditional smelting furnaces, the separation effect between slag and copper liquid is poor, resulting in a reduced copper recovery rate and serious resource waste. Complex equipment and high maintenance cost: Traditional smelting furnaces usually require additional oxygen supply systems, stirring equipment, and waste gas treatment devices, increasing the complexity of the equipment and the difficulty of maintenance. For example, flash smelting has high efficiency, but its equipment investment and operating costs are high, and it has strict requirements for operation technology. Summary of the Invention

[0003] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the specification of this application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the above problems existing in the existing smelting furnaces for efficiently refining copper, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a smelting furnace for efficiently refining copper, aiming to: provide a device that can reduce copper impurities.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a support mechanism, which includes support legs, a support plate provided at the top of the support legs, support columns and a heating box provided on the support plate, and a support housing provided on the heating box; A stirring mechanism, which includes a motor fixedly arranged inside the support housing. One end of the motor is provided with a drive shaft, and several groups of drive grooves are provided on the outer side of the drive shaft; and, An oxygen-increasing mechanism, which includes an extrusion component. The extrusion component includes an extrusion rod, and one end of the extrusion rod is provided with an extrusion block.

[0007] As a preferred solution of the smelting furnace for highly refined copper of the present invention, wherein: a oxygen storage tank is arranged at the top of the support column, and a feed hopper is arranged on one side of the support housing.

[0008] As a preferred solution of the smelting furnace for highly refined copper of the present invention, wherein: drive teeth are provided on the outer side of the drive shaft, a rotating shaft is slidably connected to the drive shaft, and a drive block is arranged on one side of the rotating shaft.

[0009] As a preferred solution of the smelting furnace for highly refined copper of the present invention, wherein: a connecting ring is arranged on the outer side of the rotating shaft. The connecting ring includes a limiting ring, a reset rod arranged at its bottom, a first spring arranged on the outer side of the reset rod, a matching circular ring arranged on the outer side of the reset rod, a through hole opened on one side of the matching circular ring, and a support disc arranged on the outer side of the matching circular ring.

[0010] As a preferred solution of the smelting furnace for highly refined copper of the present invention, wherein: a reciprocating component is arranged on one side of the drive shaft. The reciprocating component includes a drive gear, a drive rod is arranged at the bottom of the drive gear, an arc-shaped inclined block is arranged at the bottom of the drive rod, a pressing disc is arranged at the bottom of the arc-shaped inclined block, and a pressing rod is arranged at the bottom of the pressing disc.

[0011] As a preferred solution of the smelting furnace for highly refined copper of the present invention, wherein: a reset spring is arranged at the bottom of the pressing disc, a connecting long block is arranged on one side of the pressing disc, and a second spring is arranged at the bottom of the connecting long block.

[0012] As a preferred solution of the smelting furnace for highly refined copper of the present invention, wherein: a connecting piece is fixedly arranged at the bottom of the rotating shaft, and a stirring piece is arranged at the bottom of the connecting piece.

[0013] As a preferred solution of the smelting furnace for highly refined copper of the present invention, wherein: a third spring is arranged at the top of the extrusion block. The extrusion block is slidably arranged inside the oxygen supply chamber, and an oxygen inlet is opened on one side inside the oxygen supply chamber.

[0014] Advantages of the present invention: The stirring mechanism provided can stir the materials well, preventing uneven distribution of various elements in the smelting furnace. During its rotation, the stirring mechanism can also move reciprocally intermittently, thereby improving the mixing efficiency and enhancing the oxygen supply efficiency of the oxygen-increasing mechanism, and increasing the combustion efficiency.

[0015] In view of the problems existing in the above-mentioned existing method for reducing slag in a smelting furnace, the present invention is proposed.

[0016] Therefore, the object of the present invention is to provide a method for reducing slag in a smelting furnace, aiming to: reduce impurities and improve efficiency.

[0017] To solve the above technical problems, the present invention provides the following technical solutions: Step 1: Load the copper raw materials into the smelting furnace, and raise the temperature in the furnace to 1200°C - 1300°C through the heating device to melt the copper raw materials; Step 2: Start the motor to drive the stirring mechanism to rotate and move up and down reciprocally. The stirring mechanism includes stirring blades and a transmission shaft connected to the motor. The stirring blades stir the melt during rotation and apply pressure to the melt during the up and down movement; Step 3: During the up and down movement of the stirring mechanism, press oxygen into the melt from the air vent at the bottom or side of the furnace through the pressure generated by it, increasing the contact area between oxygen and the melt and promoting the progress of the oxidation reaction; Step 4: Through the rotation and up and down movement of the stirring mechanism, make the slag fully separate from the copper liquid. The slag floats to the surface of the melt and is regularly discharged from the slag discharge port; Step 5: After smelting is completed, discharge the pure copper liquid from the copper outlet and carry out subsequent casting or refining treatment.

[0018] As a preferred scheme of the smelting furnace for highly refining copper of the present invention, wherein: the up and down movement frequency of the stirring mechanism is 1 - 10 times per minute, and the movement amplitude is 10 - 50 cm; The rotation speed of the stirring blades is 50 - 300 revolutions per minute, and the shape of the stirring blades is spiral or paddle-shaped to enhance the stirring effect on the melt; The air vent is provided with a one-way valve to prevent the melt from flowing back; The furnace lining of the smelting furnace is made of high-temperature resistant and corrosion-resistant chromite-magnesite brick material to extend the service life of the equipment.

[0019] Advantages of the present invention: Through the designed stirring device, the materials can be effectively mixed, avoiding uneven distribution of elements in the smelting furnace. While rotating, the stirring device can also perform intermittent reciprocating motion, further improving the mixing effect. In addition, this motion mode can also enhance the oxygen supply efficiency of the oxygen-increasing mechanism, thereby improving the combustion efficiency. Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these attached drawings. Among them: Figure 1 It is a schematic diagram of the overall structure provided by the present invention.

[0021] Figure 2 It is a schematic diagram of the internal structure provided by the present invention.

[0022] Figure 3 It is a schematic diagram of the stirring mechanism provided by the present invention.

[0023] Figure 4 It is a schematic diagram of another perspective of the stirring mechanism provided by the present invention.

[0024] Figure 5 It is a schematic diagram of the limiting ring provided by the present invention.

[0025] Figure 6 It is a schematic diagram of the cooperation of the connecting ring provided by the present invention.

[0026] Figure 7 It is a schematic diagram of the cooperation of the reciprocating member provided by the present invention.

[0027] Figure 8 It is a schematic diagram of the support disk provided by the present invention.

[0028] Figure 9 It is a schematic diagram of the stirring member provided by the present invention.

[0029] Figure 10 It is a schematic diagram of the oxygen-increasing mechanism provided by the present invention. Specific Embodiments

[0030] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific embodiments of the present invention in conjunction with the drawings in the specification.

[0031] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0032] Second, the "one embodiment" or "embodiment" referred to herein means a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive of other embodiments.

[0033] Thirdly, the present invention is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present invention, for ease of illustration, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0034] Embodiment 1 Referring to Figures 1 to 10 , which is the first embodiment of the present invention, a method for reducing slag in a smelting furnace is provided.

[0035] Step 1: Load copper raw materials into the smelting furnace and raise the temperature in the furnace to 1200°C - 1300°C through a heating device to melt the copper raw materials; Step 2: Start the motor to drive the stirring mechanism to rotate and move up and down reciprocally. The stirring mechanism includes stirring blades and a transmission shaft connected to the motor. The stirring blades stir the melt during rotation and apply pressure to the melt during the up and down movement; Step 3: During the up and down movement of the stirring mechanism, press oxygen into the melt from the air vent at the bottom or side of the furnace through the pressure generated by it to increase the contact area between oxygen and the melt and promote the progress of the oxidation reaction; Step 4: Through the rotation and up and down movement of the stirring mechanism, fully separate the slag from the copper liquid. The slag floats to the surface of the melt and is regularly discharged from the slag discharge port; Step 5: After smelting is completed, discharge the pure copper liquid from the copper outlet and carry out subsequent casting or refining treatment.

[0036] The up and down movement frequency of the stirring mechanism is 1 - 10 times per minute, and the movement amplitude is 10 - 50 cm; The rotation speed of the stirring blades is 50 - 300 revolutions per minute, and the shape of the stirring blades is spiral or paddle-shaped to enhance the stirring effect on the melt; The air vent is provided with a one-way valve to prevent the melt from flowing back; The furnace lining of the smelting furnace is made of high-temperature resistant and corrosion-resistant chromite-magnesite brick material to extend the service life of the equipment.

[0037] Through the designed stirring device, the materials can be effectively mixed, avoiding uneven distribution of elements in the smelting furnace. While rotating, the stirring device can also perform intermittent reciprocating motion, further enhancing the mixing effect. In addition, this motion mode can also enhance the oxygen supply efficiency of the oxygen-increasing mechanism, thereby improving the combustion efficiency.

[0038] Embodiment 2 Refer to Figures 1 to 9 , which is the second embodiment of the present invention, provides a support mechanism 100 and an oxygen-increasing mechanism 300.

[0039] The support mechanism 100 includes support legs 101. At the top of the support legs 101, there is a support plate 102, a support column 103 and a heating box 105 arranged on the top of the support plate 102, and a support housing 104 arranged on the heating box 105 and on the top of the heating box 105.

[0040] At the top of the support column 103, there is an oxygen storage tank 106 and a feed hopper 107 arranged on one side of the support housing 104.

[0041] The oxygen-increasing mechanism 300 includes an extrusion component 301. The extrusion component 301 includes an extrusion rod 301a. At one end of the extrusion rod 301a, there is an extrusion block 301b. On the top of the extrusion block 301b, there is a third spring 301c. The extrusion block 301b is slidably arranged inside the oxygen supply chamber, and an oxygen inlet 301e is opened on one side inside the oxygen supply chamber.

[0042] Several groups of extrusion components 301 are provided and are connected to each other through arc-shaped pipes. When the extrusion rod 301a is in the highest position, oxygen will continuously enter the oxygen supply chamber through the oxygen inlet 301e. When the extrusion rod 301a is on one side or below the oxygen inlet 301e, oxygen will not continuously enter the oxygen supply chamber through the oxygen inlet 301e. The thickness of the extrusion block 301b can be set as required.

[0043] During the copper smelting process, supplementing oxygen is a key step to improve the smelting efficiency and optimize the chemical reaction. Since oxygen is a necessary substance for the combustion reaction. By supplementing oxygen, fuels (such as natural gas, pulverized coal, etc.) can burn fully, releasing more heat, thereby increasing the temperature inside the furnace. Therefore, oxygen-enriched combustion can significantly improve the thermal efficiency, reduce fuel consumption, and lower production costs. During the smelting process, impurities such as sulfur and iron in the copper ore need to be oxidized and removed. Supplementing oxygen can accelerate these oxidation reactions to generate sulfur dioxide (SO 2),(FeO) and other compounds. Sulfur dioxide is discharged with the waste gas, and iron oxide reacts with a flux (such as limestone) to form slag, thereby separating copper from impurities. Oxygen can significantly increase the temperature in the furnace, accelerate the melting of copper ore and the chemical reaction rate, shorten the smelting time, and improve production efficiency. Oxygen-enriched combustion reduces the proportion of nitrogen, thus reducing the total amount of waste gas, reducing the waste gas treatment burden, and reducing environmental pollution. By controlling the amount of oxygen, the oxidation-reduction atmosphere in the furnace can be adjusted to optimize the reduction process of copper, improve the copper recovery rate, and reduce metal losses.

[0044] Although supplementing oxygen has many benefits for the smelting process, if too much oxygen is supplemented, it will also bring a series of negative effects: Excessive oxygen will cause excessive oxidation of copper and its associated metals (such as lead, zinc, etc.), generating more metal oxides. These oxides may enter the slag, resulting in a decrease in the copper recovery rate and an increase in metal losses. Excessive oxygen will increase the content of metal oxides in the slag, changing the melting point and viscosity of the slag. The slag may become too viscous or difficult to separate, affecting the separation efficiency of copper and slag. Although oxygen can improve the combustion efficiency, excessive oxygen will cause the temperature in the furnace to be too high, increasing heat losses, increasing energy consumption, and rising production costs. Excessive oxygen will accelerate the oxidation of refractory materials in the furnace, especially the furnace lining part, shortening the equipment life and increasing maintenance costs. Excessive oxygen will generate more sulfur dioxide (SO 2 ), and nitrogen oxides (NO X ). It increases the difficulty of waste gas treatment and aggravates environmental pollution. Excessive oxygen may cause too much oxygen to dissolve in the copper liquid, forming copper oxide (CuO) or cuprous oxide (Cu 2 O). It reduces the purity of copper and affects the subsequent refining and product quality. Excessive oxygen may cause the reaction in the furnace to be too violent to control, increasing the operation risk and possibly triggering safety accidents. Solutions and optimization suggestions, and the present invention can both supplement oxygen and control the amount of oxygen supplementation, thereby effectively avoiding the above problems.

[0045] Supplementing oxygen plays an important role in the copper smelting process, which can improve the combustion efficiency, accelerate chemical reactions, improve the furnace atmosphere, and reduce the amount of waste gas. However, excessive oxygen supplementation will cause problems such as metal losses, deterioration of slag properties, increased equipment corrosion, and aggravated environmental pollution. By precisely controlling the amount of oxygen, optimizing the combustion process, improving equipment materials, and strengthening waste gas treatment, these negative effects can be effectively avoided, and efficient and environmentally friendly copper smelting production can be achieved.

[0046] Example 3 Refer to Figures 1 to 10 , for the third embodiment of the present invention, a stirring mechanism 200 is provided.

[0047] Stirring mechanism 200, which includes a motor 201 fixedly arranged inside the support housing 104. One end of the motor 201 is provided with a drive shaft 202. A plurality of groups of drive grooves 202a are arranged on the outer side of the drive shaft 202, and a drive tooth 202b is arranged on the outer side of the drive shaft 202. The drive shaft 202 is slidably connected with a rotating shaft 203, and a drive block 203a is arranged on one side of the rotating shaft 203.

[0048] By starting the motor 201, the drive shaft 202 rotates. Since the drive shaft 202 is slidably connected with the rotating shaft 203, the rotating shaft 203 can also rotate.

[0049] A connecting ring 204 is arranged on the outer side of the rotating shaft 203. The connecting ring 204 includes a limiting ring 204a, a reset rod 204b arranged at its bottom, a first spring 204c arranged on the outer side of the reset rod 204b, a mating circular ring 204d arranged on the outer side of the reset rod 204b, a through hole 204d-1 opened on one side of the mating circular ring 204d, and a support disk 204e arranged on the outer side of the mating circular ring 204d.

[0050] If the limiting ring 204a of the connecting ring 204 is squeezed and descends, the reset rod 204b is inserted into the through hole 204d-1 opened in the mating circular ring 204d, and the first spring 204c is squeezed, and the mating circular ring 204d also rotates synchronously.

[0051] A reciprocating member 205 is arranged on one side of the drive shaft 202. The reciprocating member 205 includes a drive gear 205a, a drive rod 205b arranged at the bottom of the drive gear 205a, an arc-shaped inclined block 205c arranged at the bottom of the drive rod 205b, a pressing disk 205d arranged at the bottom of the arc-shaped inclined block 205c, and a pressing rod 205e arranged at the bottom of the pressing disk 205d. Since the drive gear 205a is driven by the drive tooth 202b, the drive gear 205a rotates, and then the drive rod 205b also rotates. The drive rod 205b can be in surface contact with the arc-shaped inclined block 205c, so as to squeeze the arc-shaped inclined block 205c. Further, the arc-shaped inclined block 205c squeezes the limiting ring 204a through the pressing disk 205d and the pressing rod 205e, so that the rotating shaft 203 moves up and down intermittently while rotating.

[0052] A reset spring 205f is arranged at the bottom of the pressing disk 205d, a connecting long block 205g is arranged on one side of the pressing disk 205d, and a second spring 205h is arranged at the bottom of the connecting long block 205g.

[0053] Each time the pressing disc 205d moves downward, it squeezes the return spring 205f, and the connecting long block 205g connected to one side of it also squeezes the second spring 205h, which not only ensures that the driving rod 205b can contact the surface of the arc-shaped inclined block 205c, but also enables it to reset.

[0054] A connecting member 206 is fixedly provided at the bottom of the rotating shaft 203, and a stirring member 207 is provided at the bottom of the connecting member 206.

[0055] Advantages of reciprocating up and down movement and rotation for stirring: If the stirring device can not only rotate but also reciprocate up and down, the following significant advantages will be brought: The reciprocating up and down movement can cover the melts at different heights in the furnace, ensuring uniform heat distribution in the vertical direction. Further improve the smelting efficiency and reduce local overheating or overcooling phenomena. The reciprocating up and down movement can make the slag and molten copper fully mix and separate in the vertical direction. Improve the impurity removal rate and enhance the purity of copper. The reciprocating up and down movement can break the layering phenomenon of the melt and maintain the uniformity of the melt. Ensure the stability and consistency of the smelting process. The reciprocating up and down movement can prevent the melt from caking at the bottom of the furnace and keep the furnace unobstructed. Prolong the service life of the equipment and reduce the maintenance cost. The reciprocating up and down movement can increase the contact area between reactants and promote the progress of chemical reactions. Shorten the reaction time and improve the production efficiency. The reciprocating up and down movement can adjust the stirring intensity and range according to different smelting stages. Optimize the smelting process and improve the product quality.

[0056] The remaining structure is the same as that of Embodiment 2.

[0057] Embodiment 4 Refer to Figures 1 to 10 , which is the fourth embodiment of the present invention. The difference between this embodiment and the third embodiment is that this embodiment provides a smelting furnace for efficiently refining copper.

[0058] The material enters the heating box 105 through the feeding funnel 107. By starting the motor 201, the drive shaft 202 rotates. Since the drive shaft 202 is slidably connected to the rotating shaft 203, the rotating shaft 203 can also rotate. Since the drive gear 205a is driven by the drive tooth 202b, the drive gear 205a rotates, and thus the drive rod 205b also rotates. The drive rod 205b can make surface contact with the arc-shaped inclined block 205c, thereby squeezing the arc-shaped inclined block 205c. Further, the arc-shaped inclined block 205c squeezes the limiting ring 204a through the pressing disc 205d and the pressing rod 205e, so that the rotating shaft 203 makes intermittent up-and-down reciprocating movements while rotating. And the limiting ring 204a is squeezed and descends, so that the reset rod 204b is inserted into the through hole 204d-1 opened in the mating ring 204d, and the first spring 204c is squeezed. And the mating ring 204d also rotates synchronously. Each time the pressing disc 205d moves downward, it squeezes the reset spring 205f, and the connecting long block 205g connected to one side of it also squeezes the second spring 205h, which not only ensures that the drive rod 205b can make surface contact with the arc-shaped inclined block 205c, but also enables it to be reset. And the pressing rod 301a is intermittently squeezed by the connecting ring 204, so that the pressing rod 301a drives the pressing block 301b to make reciprocating movements. When the pressing rod 301a is at the highest position, oxygen continuously enters the oxygen supply chamber through the oxygen inlet 301e. When the pressing rod 301a is on one side or below the oxygen inlet 301e, oxygen does not continuously enter the oxygen supply chamber through the oxygen inlet 301e. The thickness of the pressing block 301b can be set according to requirements, so that its oxygen supply efficiency can be maintained without injecting too much oxygen.

[0059] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel aspects and advantages of the subject matter described in this application. For example, the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (e.g., temperature, pressure, etc.), installation arrangements, the use of materials, color, orientation changes, etc. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be altered or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Accordingly, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims. In addition, to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described, i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention or those features that are not relevant to the implementation of the present invention.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A smelting furnace for efficient copper refining, characterized in that: include, A support mechanism (100), comprising a support leg (101), a support plate (102) being arranged on the top of the support leg (101), a support column (103) and a heating box (105) arranged on the top of the support plate (102), a support shell (104) arranged on the heating box (105), and a support shell (104) arranged on the top of the heating box (105); A stirring mechanism (200) comprising a motor (201), the motor (201) being fixedly arranged inside the supporting shell (104), a driving shaft (202) being arranged at one end of the motor (201), and a plurality of driving grooves (202a) being arranged on the outer side of the driving shaft (202); and, The oxygenation mechanism (300) comprises an extrusion component (301), wherein the extrusion component (301) comprises an extrusion rod (301a), and an extrusion block (301b) is provided at one end of the extrusion rod (301a).

2. The smelting furnace for high-efficiency refined copper according to claim 1, characterized in that: An oxygen storage box (106) is arranged on the top of the support column (103), and a feed hopper (107) is arranged on one side of the support shell (104).

3. The smelting furnace for high-efficiency refined copper according to claim 1, characterized in that: The outer side of the driving shaft (202) is provided with driving teeth (202b), the driving shaft (202) is slidably connected to a rotating shaft (203), and a driving block (203a) is provided on one side of the rotating shaft (203).

4. The smelting furnace for high-efficiency refined copper according to claim 3, characterized in that: A connecting ring (204) is arranged on the outer side of the rotating shaft (203), and the connecting ring (204) comprises a limiting ring (204a), a reset rod (204b) arranged at the bottom thereof, a first spring (204c) arranged on the outer side of the reset rod (204b), a matching ring (204d) arranged on the outer side of the reset rod (204b), a through hole (204d-1) opened on one side of the matching ring (204d), and a supporting plate (204e) arranged on the outer side of the matching ring (204d).

5. The smelting furnace for high-efficiency refined copper according to any one of claims 2 to 4, characterized in that: A reciprocating component (205) is provided on one side of the driving shaft (202), and the reciprocating component (205) comprises a driving gear (205a), a driving rod (205b) is provided at the bottom of the driving gear (205a), a circular arc inclined block (205c) is provided at the bottom of the driving rod (205b), a downward pressing disc (205d) is provided at the bottom of the circular arc inclined block (205c), and a downward pressing rod (205e) is provided at the bottom of the downward pressing disc (205d).

6. The smelting furnace for high-efficiency refined copper according to claim 5, characterized in that: A return spring (205f) is arranged at the bottom of the downward pressing disc (205d), a connecting long block (205g) is arranged on one side of the downward pressing disc (205d), and a second spring (205h) is arranged at the bottom of the connecting long block (205g).

7. The smelting furnace for high-efficiency refined copper according to claim 6, characterized in that: A connecting piece (206) is fixedly provided at the bottom of the rotating shaft (203), and a stirring piece (207) is provided at the bottom of the connecting piece (206).

8. The smelting furnace for high-efficiency refined copper according to claim 7, characterized in that: A third spring (301c) is arranged on the top of the extrusion block (301b), and the extrusion block (301b) is slidably arranged inside the oxygen supply chamber, and an oxygen inlet (301e) is opened on one side inside the oxygen supply chamber.

9. A slag reduction method for a smelting furnace, characterized in that: A smelting furnace for high-efficiency refined copper according to any one of claims 1 to 8, comprising: Step 1: Load the copper raw material into a smelting furnace, and raise the temperature in the furnace to 1200°C-1300°C through a heating device to melt the copper raw material; Step 2: starting the motor to drive the stirring mechanism to rotate and reciprocate up and down, wherein the stirring mechanism includes a stirring blade and a transmission shaft connected to the motor, wherein the stirring blade stirs the melt during the rotation process and applies pressure to the melt during the up and down movement process; Step 3: During the up and down movement of the stirring mechanism, the pressure generated by the stirring mechanism presses oxygen into the melt from the vent at the bottom or side of the furnace, thereby increasing the contact area between oxygen and the melt and promoting the oxidation reaction. Step 4: The slag is fully separated from the copper liquid by the rotation and up and down movement of the stirring mechanism, and the slag floats to the surface of the melt and is regularly discharged from the slag discharge port; Step 5: After smelting is completed, the pure copper liquid is discharged from the copper outlet and then subjected to subsequent casting or refining treatment.

10. The slag reduction method for a smelting furnace according to claim 9, characterized in that: The stirring mechanism has an up and down movement frequency of 1-10 times / minute and a movement amplitude of 10-50 cm; The rotation speed of the stirring blade is 50-300 rpm, and the shape of the stirring blade is spiral or paddle-shaped to enhance the stirring effect on the melt; The vent is provided with a one-way valve to prevent the melt from flowing back; The lining of the smelting furnace is made of high temperature resistant and corrosion resistant chrome-magnesia brick material to extend the service life of the equipment.

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