Novel metal purifying and smelting process and equipment

Abstract

The invention relates to the field of metal purification and smelting, in particular to a novel metal purification and smelting process and equipment. The invention discloses a novel metal purifying and smelting process and equipment, which is a technology for purifying metal by utilizing a segregation and impurity removal mechanism of high-temperature metal melt in the process of condensing the high-temperature metal melt into single crystals, is suitable for various metal materials such as gold, silver and copper, and has the following advantages: (1) the whole process is a pure physical method, no chemical reagent is used, and no pollution is caused; (2) the appearance of the product is controlled through the crucible, and the product can be directly formed at one time according to customer requirements, so that unnecessary secondary processing waste is reduced; and (3) the energy consumption is low, the heat insulation property and heat preservation property of the thermal field are utilized, the material melting power is greatly reduced, and the energy-saving effect is remarkable. According to the novel metal purifying and smelting technology and equipment, the defects that a traditional metal purifying technology is limited by the types of impurity elements, the purifying effect is poor, and the purifying cost is high are overcome.

Description

Technical Field

[0001] This invention relates to the field of metal refining and smelting, and in particular to a novel metal refining and smelting process and equipment. Background Technology

[0002] High-purity metals possess advantages such as high purity, good conductivity, and strong ductility, making them widely applicable and core supporting materials for modern technology. Traditional metal purification processes are limited by the types of impurity elements, resulting in unsatisfactory purification effects and high costs. Furthermore, secondary melting and casting are often required after purification, leading to significant waste. For example, traditional electrolysis is energy-intensive, time-consuming, and produces waste electrolyte that causes substantial environmental pollution. Its purification effect is limited by the metal's activity, achieving only 3N purity, which is insufficient for electronic materials. Electromigration is less effective at removing elements like silicon, phosphorus, and sulfur, failing to effectively remove these insulating impurities that significantly impact the metal's conductivity. Evaporation is energy-intensive and time-consuming, and low-volatility-point impurities still enter the finished product, weakening the purification effect. Chemical methods utilize reactive chemical elements like chlorine and fluorine for impurity removal through chemical reactions. These methods are extremely polluting and require high temperatures to enhance chemical activity and accelerate the reaction process, resulting in high purification costs. Summary of the Invention

[0003] In order to overcome the shortcomings of traditional metal refining processes, such as being limited by the types of impurity elements, having poor refining effect, and having high refining cost, this invention provides a novel metal refining and smelting process and equipment.

[0004] A novel metal refining and smelting process of the present invention includes the following steps: Step 1: Expel the air from the insulated chamber and fill it with high-purity argon gas; Step 2: Fill the crucible with crude copper metal raw material through the filling hole, place it in the heat preservation chamber, control the graphite heating element to heat up and melt it to form a copper molten metal, and at the same time stir the copper molten metal with the stirring rod. Step 3: Slowly move the crucible away from the heating area of ​​the graphite heating element in stages, and the copper molten metal enters the metal single crystal growth stage; Step four: The graphite heating element is cooled down in stages, and the copper molten metal is slowly cooled into a single-crystal copper crystal column; Step 5: Remove the single-crystal copper crystal pillar from the crucible, cut off the seed crystal at the front end and the impurity layer at the tail end of the single-crystal copper crystal pillar, process the remaining single-crystal copper crystal pillar into a single-crystal copper crystal product of a specified size and shape, and then coat it with oil and vacuum seal it.

[0005] More preferably, in step two, impurities are adsorbed onto the stirring rod during the stirring of the copper molten metal, and in step three, the stirring rod carries away the impurities when it leaves the copper molten metal, effectively reducing the thickness of the impurity layer at the tail end of the single-crystal copper crystal pillar.

[0006] More preferably, in step two, the excess heat at the bottom of the packing hole is removed by the cooling water inside the cooling pipe, ensuring that the seed crystal at the bottom of the crucible does not melt during the heating process, thus preserving more seed crystals.

[0007] This invention discloses a novel metal refining and smelting apparatus, comprising a vacuum pump, an inlet valve, an insulated chamber, a door, a support column, an electric lift, an inlet pipe, an outlet pipe, a cooling pipe, a crucible, a stirring assembly, a rotary motor, an electrode heater, and a graphite heating element; the insulated chamber is fixedly connected to the vacuum pump; the insulated chamber has a door; an inlet valve connected to the insulated chamber is fixedly connected to the vacuum pump; a support column is slidably connected inside the vacuum pump; an electric lift is installed inside the vacuum pump to move the support column up and down; a crucible is placed on the support column; the crucible has several packing hole structures; an inlet pipe and an outlet pipe are sequentially fixed inside the support column; and the support column... A cooling pipe is fixedly connected to the crucible, corresponding to the number of packing holes, and the cooling pipe is initially inserted into the crucible and aligned below the corresponding packing hole; an inlet channel structure is opened inside the cooling pipe to connect to the inlet pipe; an outlet channel structure is opened inside the cooling pipe to connect to the outlet pipe; an inlet channel structure and an outlet channel structure are sequentially opened inside the cooling pipe; a stirring assembly corresponding to the number of packing holes is connected to the insulation chamber; a rotary motor corresponding to the number of stirring assemblies is installed on the insulation chamber; the output shaft of the rotary motor is connected to the corresponding stirring assembly; an electrode heater is installed on the left and right sides of the insulation chamber; a graphite heating element is fixedly connected to the opposing sides of the two electrode heaters.

[0008] More preferably, the stirring assembly consists of a rotating bushing, a fixed block, a stirring rod, a compression spring, and a pressure sensor; the rotating bushing is rotatably connected to the insulation chamber; the output shaft of the rotary motor is fixedly connected to the rotating bushing; the fixed block is slidably connected inside the rotating bushing; the stirring rod is detachably fixed to the fixed block; a pressure sensor is installed inside the rotating bushing; and a compression spring is fixedly connected to both the sensing element of the pressure sensor and the fixed block.

[0009] More preferably, the stirring rod is made of carbon-based ceramic material.

[0010] More preferably, the electrode heater uses a high-temperature resistant heating component composed of both copper and graphite electrodes.

[0011] More preferably, the cooling pipe has an output channel structure that connects to the corresponding liquid inlet channel; the cooling pipe has an input channel structure that connects to the corresponding liquid outlet channel; the crucible has an inner cooling cavity structure that corresponds to the number of packing holes, and the inner cooling cavity is aligned with the lower part of the corresponding packing holes; the output channel and the input channel of the cooling pipe are connected to the corresponding inner cooling cavity; the inner cooling cavity is configured as follows.

[0012] More preferably, the stirring rod has several grooves.

[0013] More preferably, the groove of the stirring rod is provided with several micro-septum structures.

[0014] This invention relates to a novel metal refining and smelting process and equipment. It is a technology that uses high-temperature molten metal to purify metals by utilizing the separation and impurity removal mechanism during the solidification of single crystals. It is applicable to various metal materials such as gold, silver, and copper, and has the following advantages: (1) The entire process is a purely physical method, without the use of chemical reagents, and is pollution-free; (2) The product shape can be controlled through the crucible, and it can be directly formed in one step according to customer needs, reducing unnecessary secondary processing waste; (3) Low energy consumption, utilizing the heat insulation and heat preservation properties of the thermal field to significantly reduce the power consumption of chemical processing, resulting in significant energy-saving effects.

[0015] This invention relates to a novel metal refining and smelting process and equipment. The refining effect is closely related to the density, viscosity, and convection intensity of the molten metal. To maximize the refining effect of this process, the following innovations are made: (1) By using porous crucible technology, the product shape is limited, which ensures production efficiency while saving secondary processing steps; (2) The melt is forcibly stirred by a high-temperature ceramic plate to enhance convection, remove bubbles in the melt, and reduce pores and cavities generated during metal solidification; (3) After stirring, the mixture is left to stand for a period of time, and this process is repeated multiple times to allow impurities such as phosphorus and sulfur to evaporate completely; (4) Silicon and silicon compounds float on the surface of the melt due to their high melting point and low density; (5) By utilizing the crystallization separation and impurity removal mechanism, and through temperature control and reasonable temperature gradient design, the atoms in the molten metal are condensed in an orderly and oriented manner according to the crystal orientation, driving impurities to the melt crystallization interface to ensure the acquisition of high-purity metal single crystals. Attached Figure Description

[0016] Figure 1 This is a perspective view of a novel metal refining and smelting equipment according to the present invention; Figure 2 This is a three-dimensional cross-sectional view of the insulated chamber of a novel metal refining and smelting equipment according to the present invention. Figure 3 This is an exploded perspective view of the stirring assembly of a novel metal refining and smelting equipment according to the present invention. Figure 4This is a perspective view of the crucible in a novel metal refining and smelting apparatus according to the present invention; Figure 5 This is a perspective view of the support column of a novel metal refining and smelting device according to the present invention; Figure 6 This is a perspective view of the cooling pipe of a novel metal refining and smelting equipment according to the present invention.

[0017] The above-mentioned figures include the following reference numerals: 1-vacuum suction machine, 11-inlet valve, 2-insulation chamber, 21-chamber door, 3-support column, 31-electric lift, 32-liquid inlet pipe, 33-liquid outlet pipe, 34-cooling pipe, 3401-liquid inlet channel, 3402-liquid outlet channel, 3403-output channel, 3404-input channel, 4-crucible, 401-packing hole, 402-inner cooling chamber, 5-stirring assembly, 51-rotating bushing, 52-fixed block, 53-stirring rod, 5301-groove, 5302-micropartition, 54-compression spring, 55-pressure sensor, 6-rotary motor, 71-electrode heater, 72-graphite heating element. Detailed Implementation

[0018] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0019] Example 1: A novel metal refining and smelting equipment, such as... Figures 1-6As shown, the system includes a vacuum pump 1, an inlet valve 11, an insulated chamber 2, a door 21, a support column 3, an electric lift 31, an inlet pipe 32, an outlet pipe 33, a cooling pipe 34, a crucible 4, a stirring assembly 5, a rotary motor 6, an electrode heater 71, and a graphite heating element 72. The insulated chamber 2 is fixedly connected to the vacuum pump 1. The insulated chamber 2 has a door 21. An inlet valve 11 is fixedly connected to the vacuum pump 1, connecting to the insulated chamber 2 and supplying inert gas into it. The inlet valve 11 is externally connected to a high-purity argon pressurization and delivery device. A support column 3 is slidably connected inside the vacuum pump 1. Two electric lifts 31 are installed inside the vacuum pump 1. The telescopic ends of the two electric lifts 31 together form the support column 3. A crucible 4 is placed on the support column 3. The crucible 4 has two packing holes 401. An inlet pipe 32 and an outlet pipe 33 are fixedly connected inside the support column 3. Two cooling pipes 34 are fixedly connected to the support column 3, and the cooling pipes 34 are initially inserted into the crucible 4 and aligned below the corresponding packing hole 401; the cooling pipes 34 are provided with an inlet channel 3401 and an outlet channel 3402 in sequence; the inlet channels 3401 of the two cooling pipes 34 are connected to the inlet pipe 32; the outlet channels 3402 of the two cooling pipes 34 are connected to the outlet pipe 33; the inlet pipe 32 and the outlet pipe 33 are connected to a circulating cooling water system; two stirring components 5 are connected to the heat preservation chamber 2; two rotary motors 6 are installed on the heat preservation chamber 2; the output shafts of the two rotary motors 6 are respectively connected to the corresponding stirring components 5; an electrode heater 71 is installed on the left and right sides of the heat preservation chamber 2; the electrode heater 71 is a high-temperature resistant heating component composed of copper electrodes and graphite electrodes; a graphite heating element 72 is fixedly connected to the opposite side of each of the two electrode heaters 71.

[0020] like Figure 2 and Figure 3 As shown, the stirring assembly 5 consists of a rotating bushing 51, a fixed block 52, a stirring rod 53, a compression spring 54, and a pressure sensor 55; the rotating bushing 51 is rotatably connected to the heat preservation chamber 2; the output shaft of the rotary motor 6 is fixedly connected to the rotating bushing 51; the fixed block 52 is slidably connected inside the rotating bushing 51; the stirring rod 53 is detachably fixed to the fixed block 52 by a threaded structure, which facilitates the removal of the stirring rod 53 to clean the adsorbed precipitated impurities; the pressure sensor 55 is installed inside the rotating bushing 51; the sensing element of the pressure sensor 55 and the fixed block 52 are both fixedly connected by a compression spring 54.

[0021] The following is a method for using a novel metal refining and smelting equipment to prepare single-crystal copper rods according to this embodiment.

[0022] First, fill the filling hole 401 of crucible 4 with crude copper metal raw material, close the door 21 of the insulation chamber 2, and then use the vacuum pump component of vacuum pump 1 to evacuate the inside of the insulation chamber 2 to between 1Pa and 5Pa. Then turn off the vacuum pump component, and use the external high-purity argon gas pressurization and delivery equipment to fill the inside of the insulation chamber 2 with high-purity argon gas through the inlet valve 11 until the internal pressure reaches 100,000Pa. Then turn on the vacuum pump component again to evacuate the vacuum inside the furnace to between 5Pa and 10Pa, and then turn off the vacuum pump component. Use the external high-purity argon gas pressurization and delivery equipment to fill the inside of the insulation chamber 2 with high-purity argon gas through the inlet valve 11 again until the internal pressure reaches 90,000Pa.

[0023] Then, the external circulating cooling water system is turned on, allowing the cooling water to circulate through the inlet pipe 32, the inlet channel 3401 of the cooling pipe 34, the outlet channel 3402 of the cooling pipe 34, and the outlet pipe 33. The inlet water temperature is controlled at 25°C. Then, the heating stage begins. The electrode heater 71 is started to control the graphite heating element 72 to slowly heat up, with a heating range of 100°C to 400°C per hour. When it reaches 1200°C, it is kept at a constant temperature for two hours. This temperature exceeds the melting point of copper by 100°C. Even if the crucible 4 shields some heat radiation, it can still ensure that the copper crude metal raw material in the filling hole 401 is completely melted. After the copper crude metal raw material in the filling hole 401 is completely melted to form a copper liquid melt, the seed crystal will be deposited at the bottom of the filling hole 401. The cooling water inside the cooling pipe 34 carries away the excess heat at the bottom of the filling hole 401, ensuring that the seed crystal at the bottom of the crucible 4 will not melt during the heating process.

[0024] Then, the electric lifting platform 31 pushes the support column 3 to lift the crucible 4 upwards, allowing the stirring rod 53 of the stirring assembly 5 to be immersed in the copper molten metal in the corresponding filling hole 401 of the crucible 4. When the lower end of the stirring rod 53 contacts the seed crystal at the bottom of the filling hole 401, the stirring rod 53 is blocked by the seed crystal and pushes the fixing block 52 upwards. The fixing block 52 drives the compression spring 54 to press the pressure sensor 55 upwards. After the pressure sensor 55 detects the pressing force from the compression spring 54, it can intelligently determine that the lower end of the stirring rod 53 has contacted the seed crystal in the filling hole 401. Then, the electric lifting platform 31 pulls the support column 3 to move the crucible 4 downward, so that the distance between the lower end of the stirring rod 53 and the seed crystal is 30 mm. The rotating motor 6 drives the rotating bushing 51, the fixed block 52 and the stirring rod 53 to rotate slowly. The rotating stirring rod 53 stirs the copper metal melt. The stirring rod 53 stirs at a speed of 5 revolutions per minute for 3 minutes, pauses for 7 minutes, and repeats this process many times. The bubbles in the melt move to the surface of the liquid. Through the adsorption principle, the impurities inside the copper metal melt precipitate to the surface of the liquid, such as alkali metal compounds, silicon compounds, sulfides and so on.

[0025] Then, the metal single crystal growth stage begins. The electric lift 31 pulls the support column 3, causing the crucible 4 to move downwards and reset. The crucible 4 gradually separates from the heating area of ​​the graphite heating element 72. The first stage is the crystal seeding stage, with a downward movement rate of 1-2 mm per hour. This ensures that the melt is arranged according to the crystal lattice of the seed crystal during the cooling process to solidify, thus ensuring its single crystallization. The second stage is the constant diameter growth stage, with a downward movement rate of 2-10 mm per hour. When the melt level in the crucible 4 drops to the same level as the lower edge of the heating element, the growth stage ends. The carbon-based ceramic used in the stirring rod 53 has high thermal conductivity. When the stirring rod 53 slowly removes the copper metal melt, many high-temperature refractory metals and some impurities floating on the surface of the liquid are enriched and adsorbed on the stirring rod 53, and then leave the melt along with the stirring rod 53.

[0026] Then, the electrode heater 71 controls the graphite heating element 72 to enter the cooling stage. The cooling rate of the graphite heating element 72 is set as follows: the first stage is to reduce the temperature to 1000℃ at 20℃ / h, and then keep it constant for 2-5 hours; the second stage is to reduce the temperature to 500℃ at 50℃ / h, and then keep it constant for 2-5 hours; the third stage is to reduce the temperature to 25℃ at 100℃ / h, and then the power is cut off to enter the cooling state and let it cool for 3-5 hours. Then, the vacuum pump component of the vacuum suction machine 1 is used to evacuate the inside of the heat preservation chamber 2 to 20Pa to discharge the waste gas inside the heat preservation chamber 2. Then, the external high-purity argon pressurization and delivery equipment fills the inside of the heat preservation chamber 2 with high-purity argon through the air inlet valve 11 until the internal pressure is the same as the external atmospheric pressure. The door 21 of the heat preservation chamber 2 is opened, the crucible 4 is removed, and the single crystal copper crystal column obtained in the crucible 4 is taken out.

[0027] Finally, the inside of the heat preservation chamber 2 was wiped clean with alcohol and a lint-free cloth. The dust and impurities on the surface of the graphite heating element 72 were cleaned with a vacuum cleaner. The crucible 4 was cleaned with an ultrasonic cleaner and then dried in a drying oven. The seed crystal at the front end and the impurity layer at the tail end of the single crystal copper crystal column were cut off with a diamond wire cutter. The seed crystal can be reused multiple times. The impurity layer at the tail end was returned to the factory as scrap copper. The skin of the single crystal copper crystal column was machined off with a lathe to a depth of about 2 mm. The machined copper scrap was returned to the factory as scrap copper. At this time, the high-purity single crystal copper rod was cleaned with alcohol, coated with oil, and vacuum sealed.

[0028] Example 2, this example is based on Example 1 above, such as... Figures 1-6As shown, each of the two cooling pipes 34 has an output channel 3403 structure that connects to the corresponding liquid inlet channel 3401; each of the two cooling pipes 34 has an input channel 3404 structure that connects to the corresponding liquid outlet channel 3402; the crucible 4 has an inner cooling cavity 402 structure corresponding to the number of packing holes 401, and the output channel 3403 and input channel 3404 of the cooling pipes 34 are connected to the corresponding inner cooling cavity 402; the inner cooling cavity 402 is designed to semi-enclose the area below the corresponding packing hole 401; the cooling water flowing through the liquid inlet channel 3401 flows into the inner cooling cavity 402 below the packing hole 401 from the output channel 3403, and the cooling water flows into the liquid outlet channel 3402 after passing through the input channel 3404, so that more cooling water can flow through the area below the packing hole 401, providing a better heat absorption and cooling effect to prevent melting of the seed crystal deposited at the bottom of the packing hole 401.

[0029] Example 3, this example is based on Example 1 above, such as... Figures 1-6 As shown, each of the two stirring rods 53 in this embodiment has a plurality of grooves 5301. During the slow rotation of the stirring rods 53, the grooves 5301 can improve the stirring effect on the copper molten metal. Each groove 5301 of the two stirring rods 53 has a plurality of micro partitions 5302 on its upper side. The micro partitions 5302 divide the grooves 5301 into a plurality of adsorption holes. The precipitated impurities floating above the surface of the copper molten metal will be more effectively adsorbed and collected in the adsorption holes, thereby improving the cleaning effect on the precipitated impurities on the surface of the copper molten metal.

[0030] It should be understood that the above description is for illustrative purposes only and is not intended to limit the invention. Those skilled in the art will understand that variations of the invention are included within the scope of the claims herein.

Claims

1. A novel metal refining and smelting process, characterized in that, It includes the following steps: Step 1: Expel the air from the inside of the insulated chamber (2) and fill it with high-purity argon gas; Step 2: Fill the crucible (4) with copper crude metal raw material through the filling hole (401), place it in the heat preservation chamber (2), control the graphite heating element (72) to heat up and melt, forming copper liquid melt, and at the same time stir the copper liquid melt with the stirring rod (53). Step 3: The crucible (4) is slowly moved away from the heating area of ​​the graphite heating element (72) in stages, and the copper metal liquid melt enters the metal single crystal growth stage; Step 4: The graphite heating element (72) is cooled down in stages, and the copper metal liquid melt is slowly cooled into a single crystal copper column; Step 5: Take out the single crystal copper crystal pillar from the crucible (4), cut off the seed crystal at the front end and the impurity layer at the tail end of the single crystal copper crystal pillar, process the remaining single crystal copper crystal pillar into a single crystal copper crystal product of a specified size and shape, and seal it with oil and vacuum.

2. A novel metal refining and smelting process according to claim 1, characterized in that, in In step two, during the stirring of the copper molten metal, impurities are adsorbed onto the stirring rod (53). In step three, when the stirring rod (53) leaves the copper molten metal, it carries away the impurities.

3. A novel metal refining and smelting process according to claim 1, characterized in that, in In step two, the cooling water inside the cooling pipe (34) carries away the excess heat at the bottom of the filling hole (401), ensuring that the seed crystal at the bottom of the crucible (4) will not melt during the heating process.

4. A novel metal refining and smelting equipment, applicable to the novel metal refining and smelting process described in any one of claims 1-3, comprising a vacuum suction machine (1); an insulated chamber (2) fixedly connected to the vacuum suction machine (1); a door (21) provided on the insulated chamber (2); and an air inlet valve (11) fixedly connected to the vacuum suction machine (1) for connecting to the insulated chamber (2); characterized in that, It also includes a support column (3); the support column (3) is slidably connected inside the vacuum suction machine (1); an electric lift (31) is installed inside the vacuum suction machine (1) to drive the support column (3) to move up and down; a crucible (4) is placed on the support column (3); the crucible (4) has several packing holes (401) structure; an inlet pipe (32) and an outlet pipe (33) are fixedly connected in sequence inside the support column (3); a cooling pipe (34) corresponding to the number of packing holes (401) is fixedly connected to the support column (3), and the cooling pipe (34) is initially inserted into the crucible (4) and below the corresponding packing hole (401); an inlet channel (34) connecting to the inlet pipe (32) is opened inside the cooling pipe (34). 01) Structure; The cooling pipe (34) is provided with an outlet channel (3402) structure that connects to the outlet pipe (33); The cooling pipe (34) is provided with an inlet channel (3401) structure and an outlet channel (3402) structure in sequence; The insulation chamber (2) is connected with a stirring assembly (5) corresponding to the number of packing holes (401); The insulation chamber (2) is equipped with a rotary motor (6) corresponding to the number of stirring assemblies (5); The output shaft of the rotary motor (6) is connected to the corresponding stirring assembly (5); An electrode heater (71) is installed on the left and right sides of the insulation chamber (2); A graphite heating element (72) is fixed to the opposite side of each of the two electrode heaters (71).

5. A novel metal refining and smelting equipment according to claim 4, characterized in that, The stirring assembly (5) consists of a rotating bushing (51), a fixed block (52), a stirring rod (53), a compression spring (54), and a pressure sensor (55); the rotating bushing (51) is rotatably connected to the heat preservation chamber (2); the output shaft of the rotary motor (6) is fixedly connected to the rotating bushing (51); the fixed block (52) is slidably connected inside the rotating bushing (51); the stirring rod (53) is detachably fixed on the fixed block (52); the pressure sensor (55) is installed inside the rotating bushing (51); the sensing element of the pressure sensor (55) and the fixed block (52) are both fixedly connected to the compression spring (54).

6. A novel metal refining and smelting equipment according to claim 5, characterized in that, The stirring rod (53) is made of carbon-based ceramic material.

7. A novel metal refining and smelting equipment according to claim 4, characterized in that, The electrode heater (71) uses a high-temperature resistant heating component composed of copper electrodes and graphite electrodes.

8. A novel metal refining and smelting equipment according to claim 4, characterized in that, The cooling pipe (34) is provided with an output channel (3403) structure that connects to the corresponding liquid inlet channel (3401); the cooling pipe (34) is provided with an input channel (3404) structure that connects to the corresponding liquid outlet channel (3402); the crucible (4) is provided with an inner cooling cavity (402) structure that corresponds to the number of packing holes (401), and the inner cooling cavity (402) is aligned with the lower part of the corresponding packing holes (401); the output channel (3403) and input channel (3404) of the cooling pipe (34) are connected to the corresponding inner cooling cavity (402); the inner cooling cavity (402) is set as follows.

9. A novel metal refining and smelting equipment according to claim 4, characterized in that, The stirring rod (53) has several grooves (5301) structure.

10. A novel metal refining and smelting equipment according to claim 9, characterized in that, The groove (5301) of the stirring rod (53) is provided with several micro-partition (5302) structures.

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