Self-filtering smelting up-drawing continuous casting furnace

Abstract

The utility model relates to the technical field of up-drawing furnaces, in particular to a self-filtering smelting up-drawing continuous casting furnace which comprises a furnace body, a first melting bin is arranged on one side in the furnace body, a second melting bin is further arranged in the furnace body, and a fusion bin is arranged at the position, close to the second melting bin, in the furnace body. A heat preservation bin is arranged on the other side in the furnace body, and a purification bin is arranged between the fusion bin and the heat preservation bin. The two melting bins are arranged, the two melting bins are used for melting regenerated copper and electrolytic copper respectively, the regenerated copper and the electrolytic copper flow into the fusion bin to be fused after being molten, and the melting bins and the heat preservation bin are filled with charcoal and graphite phosphorus sheets used for adsorbing metal impurities. Charcoal is filled in the fusion bin and the purification bin to adsorb impurities and isolate oxygen, and the impurities are separated out through grid filtration, so that the purity of the copper material is improved.

Description

Technical Field

[0001] This utility model relates to the field of upward drawing furnace technology, specifically a self-filtering smelting upward drawing continuous casting furnace. Background Technology

[0002] An induction furnace is an industrial smelting device primarily used in metal smelting and heat treatment processes. It utilizes induction heating to heat the metal, creating eddies within the metal. These eddies generate heat, raising the metal's temperature until it reaches its melting point. This method avoids direct contact heating, thus ensuring the purity and quality of the metal.

[0003] Chinese patent CN219735964U discloses a high-efficiency, low-energy-consumption upward-drawing furnace, including a support frame on which a furnace body is fixedly mounted. The furnace body includes a melting zone, a purification zone, and a heat preservation zone. A nano-high-temperature insulation layer is disposed on the inner wall of the furnace body. A chromium-containing fiber layer is disposed on the inner side wall of the nano-high-temperature insulation layer. A chromium-containing fiber layer is disposed on the inner bottom wall of the nano-high-temperature insulation layer. A ceramic fiber layer is disposed on both the chromium-containing fiber layer and the chromium-containing fiber layer. A heat preservation layer is disposed on the inner side wall of the ceramic fiber layer. A quartz sand layer is disposed on both the heat preservation layer and the ceramic fiber layer. Several shaped bricks are disposed on the quartz sand layer, and adjacent shaped bricks are interconnected. This patent involves adding copper material, such as electrolytic copper, into the melting zone. Under the operation of an electromagnetic heating coil, the copper material is melted into molten copper in the melting zone. The molten copper overflows from the melting zone into the heat preservation zone. With the heating coil in operation, the molten copper in the heat preservation zone remains in a liquid state.

[0004] The existing technology melts copper into molten copper in the melting zone under the operation of an electromagnetic heating coil. The molten copper then overflows into the heat preservation zone. Under the operation of the heating coil, the molten copper in the heat preservation zone is kept in a liquid state. However, there are other metallic impurities inside the molten copper. At the same time, the copper inside the furnace will oxidize when heated, which will affect the quality of the copper. Utility Model Content

[0005] The purpose of this invention is to provide a self-filtering smelting continuous casting furnace with two melting chambers, which respectively smelt recycled copper and electrolytic copper. After the recycled copper and electrolytic copper are melted, they flow into the fusion chamber for fusion. The melting chamber and the heat preservation chamber are filled with charcoal and graphite flakes to adsorb metal impurities. The fusion chamber and the purification chamber are filled with charcoal to adsorb impurities and isolate oxygen. The impurities are separated by a grid filter, thereby improving the purity of the copper material.

[0006] To address the existing technical problems, this utility model provides a self-filtering smelting and top-drawing continuous casting furnace, including a furnace body. A first melting chamber is provided on one side of the furnace body, and a second melting chamber is also provided inside the furnace body. A fusion chamber is provided inside the furnace body near the second melting chamber, and a heat preservation chamber is provided on the other side of the furnace body. A purification chamber is provided between the fusion chamber and the heat preservation chamber.

[0007] Preferably, the first melting chamber, the second melting chamber, and the insulation chamber are filled with charcoal and graphite flakes, the charcoal particles are larger than the graphite flake particles, and the graphite flakes fill the gaps in the charcoal.

[0008] Preferably, the fusion chamber and purification chamber are filled with pure charcoal to adsorb metal impurities and isolate air.

[0009] Preferably, a partition is provided between the first melting chamber, the second melting chamber, the fusion chamber, the purification chamber and the heat preservation chamber to separate the chambers. The partition is also provided with a connecting port for the flow of molten material, and a grid is detachably installed in the connecting port.

[0010] Preferably, the bottom of the first melting chamber is provided with a first molten pool, the bottom of the second melting chamber is provided with a second molten pool, the bottom of the purification chamber is provided with a purification pool, the bottom of the heat preservation chamber is provided with a heat preservation pool, and the first molten pool, the second molten pool, the purification pool and the heat preservation pool are also provided with electromagnetic heating components for heating.

[0011] Preferably, the electromagnetic heating assembly includes an iron core, a heating coil for heating is sleeved on the outside of the iron core, and a cooling water jacket for cooling is also sleeved on the outside of the electromagnetic heating assembly.

[0012] Preferably, the inner wall of the furnace is provided with a heat-insulating brick insulation layer and a special brick for heat insulation, and a ramming material insulation layer is filled between the heat-insulating brick insulation layer and the special brick. The first molten pool, the second molten pool, the purification pool and the heat-insulating pool are also filled with a ramming material insulation layer.

[0013] Preferably, the top of the furnace body is also provided with a feeding port for filling, and a material gate is rotatably provided on the feeding port.

[0014] The advantages of this utility model compared to the prior art are:

[0015] 1. This application comprises a furnace body sequentially arranged with a first melting chamber, a second melting chamber, a fusion chamber, a purification chamber, and a heat preservation chamber. Each chamber is separated by partitions, and the partitions are also equipped with grids. The first melting chamber, the second melting chamber, and the heat preservation chamber are filled with charcoal and graphite flakes. The charcoal particles are larger than the graphite flake particles; due to their larger size, the charcoal burns more easily. The graphite flakes fill the gaps between the charcoal particles, and during combustion, the charcoal and graphite flakes adsorb other metallic impurities. The fusion chamber and the purification chamber are filled with pure charcoal to adsorb metallic impurities and isolate oxygen, preventing copper oxidation. As the copper molten material flows into the heat preservation chamber, impurities are filtered through the grids, thereby improving the purity of the copper.

[0016] 2. This application provides a heat insulation layer of insulating bricks and special bricks on the inner wall of the furnace body. A ramming material heat insulation layer is filled between the heat insulation layer of insulating bricks and special bricks, thereby improving the heat insulation effect of the upper furnace and increasing the utilization rate of electrical energy. At the same time, it also avoids the furnace body outer wall temperature from being too high and burning the staff. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a self-filtering smelting upper drawing continuous casting furnace according to this utility model.

[0018] Figure 2 This is a front view structural diagram of a self-filtering smelting and upward drawing continuous casting furnace according to this utility model.

[0019] Figure 3 This is a top view schematic diagram of a self-filtering smelting and top-drawing continuous casting furnace according to this utility model.

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the self-filtering smelting and upward drawing continuous casting furnace at section AA according to this utility model.

[0021] Figure 5 This utility model relates to a self-filtering smelting and top-drawing continuous casting furnace. Figure 4 Enlarged structural diagram at point A in the middle.

[0022] Figure 6 This utility model relates to a self-filtering smelting and top-drawing continuous casting furnace. Figure 4 Enlarged structural diagram at point B.

[0023] The following are the labels in the diagram: 1. Furnace body; 11. First melting chamber; 111. First molten pool; 12. Second melting chamber; 121. Second molten pool; 13. Fusion chamber; 14. Purification chamber; 141. Purification pool; 15. Insulation chamber; 151. Insulation pool; 16. Baffle plate; 2. Feed port; 3. Insulation brick insulation layer; 4. Rammed material insulation layer; 5. Special brick; 6. Electromagnetic heating assembly; 61. Iron core; 62. Heating coil; 7. Cooling water jacket. Detailed Implementation

[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0025] Reference Figures 1-6 As shown, this utility model provides a self-filtering smelting and top-drawing continuous casting furnace, including a furnace body 1, which provides a closed and controllable smelting environment. The furnace body 1 is typically made of high-temperature resistant material, capable of withstanding the heat and pressure generated during high-temperature smelting. A first melting chamber 11 is located on one side of the furnace body 1, and a second melting chamber 12 is also located inside the furnace body 1. A fusion chamber 13 is located inside the furnace body 1 near the second melting chamber 12. Molten metal flows from the second melting chamber 12 into the fusion chamber 13, where uniform mixing of the metal is achieved through natural convection. The filling with pure charcoal helps adsorb impurities in the metal and isolates it from air, preventing metal oxidation. A heat preservation chamber 15 is located on the other side of the furnace body 1, and a purification chamber 14 is located between the fusion chamber 13 and the heat preservation chamber 15. The purification chamber 14 deeply purifies the molten metal, removing minute metal inclusions and gases. The first melting chamber 11, the second melting chamber 12, and the heat preservation chamber 15 are filled with charcoal and graphite flakes. The charcoal particles are larger than the graphite flake particles, and the graphite flakes fill the gaps in the charcoal. Molten metal flows from the purification chamber 14 into the heat preservation chamber 15, which maintains the temperature of the molten metal through internal heating. The combustion of the charcoal and graphite flakes also helps to provide a certain heat preservation effect. The melting chamber 13 and the purification chamber 14 are filled with pure charcoal to adsorb metal impurities and isolate them from air.

[0026] A partition 16 is provided between the first melting chamber 11, the second melting chamber 12, the fusion chamber 13, the purification chamber 14 and the heat preservation chamber 15 to separate the chambers. The partition 16 is also provided with a connecting port for the flow of molten material, and a grid is detachably installed in the connecting port.

[0027] The furnace body 1 is sequentially equipped with a first melting chamber 11, a second melting chamber 12, a fusion chamber 13, a purification chamber 14, and a heat preservation chamber 15. Each chamber is separated by a partition 16, which also contains a grid. The first melting chamber 11, the second melting chamber 12, and the heat preservation chamber 15 are filled with charcoal and graphite flakes. The charcoal particles are larger than the graphite flake particles, making them easier to burn completely. The graphite flakes fill the gaps between the charcoal particles, and during combustion, they adsorb other metallic impurities. The fusion chamber 13 and the purification chamber 14 are filled with pure charcoal to adsorb metallic impurities and isolate oxygen, preventing copper oxidation. As the copper molten material flows into the heat preservation chamber 15, impurities are filtered through the grid, thereby improving the purity of the copper.

[0028] The bottom of the first melting chamber 11 is provided with a first molten pool 111, the bottom of the second melting chamber 12 is provided with a second molten pool 121, the bottom of the purification chamber 14 is provided with a purification pool 141, and the bottom of the heat preservation chamber 15 is provided with a heat preservation pool 151. Electromagnetic heating components 6 for heating are also installed inside the first molten pool 111, the second molten pool 121, the purification pool 141, and the heat preservation pool 151. The electromagnetic heating component 6 includes an iron core 61, a heating coil 62 for heating is sleeved on the outside of the iron core 61, and a cooling water jacket 7 for cooling is also sleeved on the outside of the electromagnetic heating component 6. The iron core 61 is the core part of the electromagnetic heating component 6, used to enhance the magnetic field generated by the heating coil 62. When the heating coil 62 is energized, an alternating magnetic field is generated. Under the action of the alternating magnetic field, the molten metal in the molten pool generates eddy currents, which flow inside the metal and generate heat, thereby achieving heating.

[0029] The inner wall of the furnace body 1 is provided with a heat-insulating brick insulation layer 3 and special bricks 5 for heat insulation. A ramming material insulation layer 4 is also filled between the heat-insulating brick insulation layer 3 and the special bricks 5. The first molten pool 111, the second molten pool 121, the purification pool 141 and the heat-insulating pool 151 are also filled with ramming material insulation layer 4. The top of the furnace body 1 is also provided with a feeding port 2 for filling, and a material gate is rotatably installed on the feeding port 2.

[0030] Working Principle: In operation, charcoal and graphite flakes are filled into the first melting chamber 11, the second melting chamber 12, and the insulation chamber 15. The charcoal particles are larger than the graphite flake particles. Pure charcoal is filled into the fusion chamber 13 and the purification chamber 14. Then, recycled copper is placed into the first melting chamber 11. Electrolytic copper is placed into the second melting chamber 12. By energizing the heating coil 62, eddy currents are generated inside the copper, causing it to melt. As the charcoal and graphite flakes burn, they adsorb other metallic impurities. The molten copper then enters the fusion chamber 13 to mix with the surrounding material. The mixed molten copper then enters the purification chamber 14, where the burning charcoal in both chambers adsorbs metallic impurities and isolates oxygen, preventing oxidation of the copper. As the copper solution flows into the insulation chamber 15, impurities are filtered through a grid, thus improving the purity of the copper. The inner wall of the furnace body 1 is provided with a heat insulation layer 3 of insulating bricks and a special brick 5. The space between the heat insulation layer 3 of insulating bricks and the special brick 5 is filled with a ramming material heat insulation layer 4, thereby improving the heat insulation effect of the upper furnace and increasing the utilization rate of electrical energy. At the same time, it also prevents the outer wall of the furnace body 1 from getting too hot and burning the staff.

[0031] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A self-filtering smelting and upward drawing continuous casting furnace, characterized in that... The furnace includes a furnace body (1), a first melting chamber (11) is provided on one side of the furnace body (1), a second melting chamber (12) is also provided inside the furnace body (1), a fusion chamber (13) is provided inside the furnace body (1) near the second melting chamber (12), a heat preservation chamber (15) is provided on the other side of the furnace body (1), and a purification chamber (14) is provided between the fusion chamber (13) and the heat preservation chamber (15).

2. The self-filtering smelting and upward drawing continuous casting furnace according to claim 1, characterized in that... The first melting chamber (11), the second melting chamber (12) and the heat preservation chamber (15) are filled with charcoal and graphite flakes. The charcoal particles are larger than the graphite flake particles, and the graphite flakes fill the gaps in the charcoal.

3. The self-filtering smelting and upward drawing continuous casting furnace according to claim 1, characterized in that... The fusion chamber (13) and purification chamber (14) are filled with pure charcoal to adsorb metal impurities and isolate air.

4. The self-filtering smelting and upward drawing continuous casting furnace according to claim 1, characterized in that... The first melting chamber (11), the second melting chamber (12), the fusion chamber (13), the purification chamber (14) and the heat preservation chamber (15) are provided with partitions (16) to separate the chambers. The partitions (16) are also provided with connecting ports for the flow of molten material, and the connecting ports are detachably provided with grids.

5. A self-filtering smelting and upward drawing continuous casting furnace according to claim 4, characterized in that... The bottom of the first melting chamber (11) is provided with a first molten pool (111), the bottom of the second melting chamber (12) is provided with a second molten pool (121), the bottom of the purification chamber (14) is provided with a purification pool (141), and the bottom of the heat preservation chamber (15) is provided with a heat preservation pool (151). The first molten pool (111), the second molten pool (121), the purification pool (141) and the heat preservation pool (151) are also provided with electromagnetic heating components (6) for heating.

6. A self-filtering smelting and upward drawing continuous casting furnace according to claim 5, characterized in that... The electromagnetic heating assembly (6) includes an iron core (61), a heating coil (62) for heating is sleeved on the outside of the iron core (61), and a cooling water jacket (7) for cooling is also sleeved on the outside of the electromagnetic heating assembly (6).

7. A self-filtering smelting and upward drawing continuous casting furnace according to claim 5, characterized in that... The inner wall of the furnace body (1) is provided with a heat insulation brick insulation layer (3) and a special brick (5) for heat insulation. A ramming material insulation layer (4) is also filled between the heat insulation brick insulation layer (3) and the special brick (5). The first molten pool (111), the second molten pool (121), the purification pool (141) and the heat insulation pool (151) are also filled with a ramming material insulation layer (4).

8. A self-filtering smelting and upward drawing continuous casting furnace according to claim 7, characterized in that... The top of the furnace body (1) is also provided with a feeding port (2) for filling, and a material gate is rotatably provided on the feeding port (2).

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