Metal reduction tank

Abstract

The invention discloses a metal reduction tank, and relates to the technical field of metal smelting equipment, and the metal reduction tank is technically characterized by comprising an outer tank and an inner tank which is fixedly mounted at the bottom of an inner cavity of the outer tank and is coaxial with the outer tank, a heat insulation top plate which is coaxial with the outer tank is fixedly mounted at the top of the outer tank, and a plurality of unit cooling mechanisms are arranged on the outer circular surface of the inner tank; a phase change heat storage material coating is arranged on the inner circle face of the inner tank, the unit cooling mechanism comprises a water supply assembly, a water distribution assembly, a water return assembly and a descaling assembly, and the water supply assembly comprises a heat insulation water supply pipe which is fixedly installed on the outer circle face of the inner tank and penetrates through the heat insulation top plate. By integrating the water feeding assembly, the water distributing assembly, the water returning assembly, the phase change heat storage material coating and the descaling assembly, the cooling water jacket is comprehensively optimized, the functions of uniform temperature distribution, efficient heat exchange, accurate temperature regulation and control and scale prevention are achieved, the magnesium reduction reaction efficiency, the product quality and the system stability are remarkably improved, and the production cost is reduced. The defects of a traditional vertical magnesium metal reduction tank are overcome.

Description

Technical Field

[0001] The invention relates to the technical field of metal smelting equipment, in particular to a metal reduction tank. Background Art

[0002] The traditional vertical magnesium metal reduction tank, or vertical tank, is the core equipment in the magnesium smelting process and plays a key role in converting magnesium oxide into magnesium metal. It stands vertically in the furnace and efficiently converts raw materials into target products through a precise reduction reaction process.

[0003] However, in actual industrial applications, traditional vertical magnesium metal reduction tanks are prone to uneven temperature distribution during operation due to the limitations of the cooling water jacket design. This temperature difference phenomenon not only significantly reduces the efficiency of the magnesium reduction reaction, resulting in a double decline in output and quality, but also aggravates the thermal stress concentration of the tank material, thereby increasing the risk of local deformation or even damage to the tank, posing a serious threat to production safety and equipment life. Therefore, we propose a new type of metal reduction tank. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a metal reduction tank, which solves the problems of uneven temperature distribution and concentrated thermal stress causing tank deformation and damage in traditional vertical magnesium metal reduction tanks due to limitations in the design of cooling water jackets.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a metal reduction tank, comprising an outer tank and an inner tank fixedly installed at the bottom of the inner cavity of the outer tank and coaxial with the outer tank, an insulating top plate coaxial with the outer tank being fixedly installed on the top of the outer tank, and a plurality of unit cooling mechanisms are arranged on the outer cylindrical surface of the inner tank.

[0006] The unit cooling mechanism comprises a water supply component, a water distribution component, a water return component and a descaling component.

[0007] The water supply assembly includes an insulated water supply pipe fixedly mounted on the outer circumferential surface of the inner tank and penetrating the insulated top plate, and a plurality of valves connected to the inner cavity of the insulated water supply pipe are fixedly mounted on the outer circumferential surface of the insulated water supply pipe.

[0008] The water distribution assembly includes a water distribution main pipe fixedly installed at the water outlet end of the valve, an annular water distribution branch pipe connected with the inner cavity of the water distribution main pipe is fixedly installed on the outer circular surface of the water distribution main pipe, a reinforcement pipe adapted to the annular water distribution branch pipe is fixedly installed on the inner circular surface of the annular water distribution branch pipe, and a plurality of arc-shaped heat-conducting blocks located between the outer tank and the inner tank and in contact with the outer tank and the inner tank are fixedly installed on the annular water distribution branch pipe.

[0009] The water distribution assembly also includes a plurality of temperature sensors which are fixedly mounted on the outer circular surface of the inner tank and located between the arc-shaped heat-conducting blocks.

[0010] The return water assembly comprises an insulated return water pipe fixedly mounted on the outer circumference of the inner tank and penetrating the insulated top plate, and a plurality of one-way valves whose output ends are connected to the inner cavity of the insulated return water pipe are fixedly mounted on the outer circumference of the insulated return water pipe.

[0011] Preferably, the descaling assembly includes a plurality of electromagnetic coils fixedly mounted on an annular water distribution branch pipe, a concave connecting piece passing through the arc-shaped heat-conducting block is fixedly mounted on the electromagnetic coil, an electrode rod passing through the insulating top plate is fixedly connected to the concave connecting piece, and an electromagnetic controller fixedly connected to the insulating top plate is fixedly mounted on one end of the electrode rod away from the concave connecting piece.

[0012] Preferably, the outer tank and the inner tank are both made of ceramic particle reinforced metal matrix composite material, wherein the ceramic particle reinforced metal matrix composite material is made of high-strength ceramic particles uniformly dispersed in a high-temperature resistant metal matrix.

[0013] Preferably, the annular water branch pipe, reinforcement pipe and arc-shaped heat-conducting block are all made of insulating heat-conducting materials, wherein the curvature of the outer and inner surfaces of the arc-shaped heat-conducting block are respectively equal to the curvature of the outer tank and the inner tank.

[0014] Preferably, the water inlet end of the one-way valve is fixedly connected to the water outlet end of the annular water branch pipe.

[0015] Preferably, the concave connecting piece is made of conductive high temperature resistant material.

[0016] Preferably, the arc-shaped heat-conducting blocks and the electromagnetic coils are staggered and evenly distributed on the annular water branch pipe.

[0017] Preferably, a sealing gasket coaxial with the insulating top plate is fixedly installed on the top of the insulating top plate, a cover plate is bolted to the top of the insulating top plate and directly above the sealing gasket, and a covered vacuum tube penetrating the cover plate is fixedly installed at the center of the top of the cover plate.

[0018] Preferably, the sealing gasket is made of high temperature resistant graphite material.

[0019] Preferably, the inner circumferential surface of the inner tank is provided with a phase change heat storage material coating.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention effectively solves the problems of uneven temperature distribution and deformation and damage of the tank body caused by concentrated thermal stress in the traditional vertical magnesium metal reduction tank by arranging a water supply component, a water distribution component and a water return component. The cooling water is accurately delivered to the water distribution component by the water supply component, and then the cooling water is evenly distributed to each annular water distribution branch pipe by the water distribution component, and the cooling water is efficiently exchanged with the tank body through the arc-shaped heat conduction block. Finally, the cooling water after heat exchange is returned to the cooling water jacket by the water return component, forming an efficient circulation loop. This design ensures uniform temperature distribution of the entire tank body, effectively avoids the adverse effects of temperature gradients, thereby extending the service life of the tank body and improving the efficiency of the magnesium reduction reaction.

[0022] 2. The present invention further improves the cooling effect by providing an arc-shaped heat-conducting block. The arc-shaped heat-conducting block maximizes the contact area with the outer tank and the inner tank through its perfect arc matching, so that heat can be transferred to the cooling water more quickly and evenly. This design not only improves the heat exchange efficiency, but also ensures the stable operation of the tank body in a high temperature environment, further reducing the risk of deformation and damage to the tank body.

[0023] 3. The present invention realizes precise control of the temperature inside the tank by setting a phase change thermal storage material coating. In the initial heating stage in the furnace, the phase change thermal storage material coating can quickly absorb and store a large amount of heat. When the temperature inside the tank fluctuates or decreases, it can immediately release the previously stored heat, thereby maintaining the temperature inside the tank within a relatively constant and appropriate range. This design not only ensures that the magnesium reduction reaction can be carried out under the optimal temperature conditions, but also significantly improves the reaction efficiency and consistency of product quality.

[0024] 4. The present invention effectively solves the common scaling problem in the cooling water jacket by setting a descaling component. The electromagnetic controller controls the electromagnetic coil to be energized to generate an alternating magnetic field, which acts on calcium, magnesium and other ions in the cooling water, changes their crystal form, and prevents the formation of hard scale on the pipe wall. This design not only improves the operating efficiency of the cooling water jacket, but also extends the service life of the system, ensuring the long-term stable operation of the metal reduction tank. At the same time, this design also reduces equipment failures and maintenance costs caused by scaling, and improves production efficiency and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 For the present invention Figure 1 A schematic cross-sectional structure diagram of ;

[0027] Figure 3 For the present invention Figure 2 A partially enlarged structural schematic diagram;

[0028] Figure 4 It is a schematic diagram of the sealing gasket structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the phase change thermal storage material coating of the present invention;

[0030] Figure 6 For the present invention Figure 5 A partially enlarged structural schematic diagram;

[0031] Figure 7 For the present invention Figure 6 A partially enlarged structural schematic diagram;

[0032] Figure 8 For the present invention Figure 6 Another perspective structural diagram of;

[0033] Fig. 9 For the present invention Figure 8 A partially enlarged structural schematic diagram;

[0034] Fig.10 It is a schematic diagram of the reinforcement pipe structure of the present invention.

[0035] In the figure:

[0036] 1. Outer tank;

[0037] 2. Inner tank;

[0038] 3. Insulated top plate;

[0039] 4. Unit cooling mechanism;

[0040] 41. water supply assembly; 411. insulated water supply pipe; 412. valve;

[0041] 42. water distribution assembly; 421. water distribution main pipe; 422. annular water distribution branch pipe; 423. reinforcement pipe; 424. arc-shaped heat conduction block; 425. temperature sensor;

[0042] 43. Return water assembly; 431. Insulated return water pipe; 432. Check valve;

[0043] 44. descaling assembly; 441. electromagnetic coil; 442. concave connector; 443. electrode rod; 444. electromagnetic controller;

[0044] 5. Phase change thermal storage material coating;

[0045] 6. Sealing gasket;

[0046] 7. Cover plate;

[0047] 8. Vacuum tube with cover. DETAILED DESCRIPTION

[0048] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0049] See also Figures 1 to 4 A metal reduction tank comprises an outer tank 1 and an inner tank 2 fixedly mounted on the inner bottom of the outer tank 1 and coaxial with the outer tank 1. An insulating top plate 3 coaxial with the outer tank 1 is fixedly mounted on the top of the outer tank 1, and a plurality of unit cooling mechanisms 4 are arranged on the outer cylindrical surface of the inner tank 2.

[0050] The outer tank 1 and the inner tank 2 are both made of ceramic particle reinforced metal matrix composite materials, wherein the ceramic particle reinforced metal matrix composite materials are made of high-strength ceramic particles uniformly dispersed in a high-temperature resistant metal matrix. The outer tank 1 and the inner tank 2 made of ceramic particle reinforced metal matrix composite materials significantly improve the overall strength and heat resistance of the tank body, thereby enhancing the durability and safety of the metal reduction tank.

[0051] See also Figure 3 and Figures 5 to 9 The unit cooling mechanism 4 includes a water supply component 41, a water distribution component 42, a water return component 43 and a descaling component 44. The water supply component 41 is responsible for accurately delivering cooling water to the water distribution component 42; the water distribution component 42 ensures that the cooling water is evenly distributed, and performs efficient heat exchange with the outer tank 1 and the inner tank 2 through the arc-shaped heat conduction block 424; the water return component 43 is responsible for returning the cooling water that has completed the heat exchange to the cooling water jacket to form a cycle. The descaling component 44 prevents the crystallization of ions in the cooling water from forming scale through electromagnetic action, ensuring the long-term stable operation of the cooling water jacket. It effectively solves the problem of uneven temperature distribution caused by the traditional cooling water jacket design and ensures the efficient progress of the magnesium reduction reaction.

[0052] See also Figures 2 to 4 and Figure 8 The water supply assembly 41 includes an insulated water supply pipe 411 fixedly mounted on the outer circumference of the inner tank 2 and penetrating the insulated top plate 3, ensuring that the cooling water can be accurately delivered to the water distribution assembly 42. A plurality of valves 412 connected to the inner cavity of the insulated water supply pipe 411 are fixedly mounted on the outer circumference of the insulated water supply pipe 411, and the valves 412 are responsible for controlling the flow rate and flow direction of the cooling water. According to the data of the temperature sensor 425, the controller can instruct the valve 412 to open or close, so as to achieve accurate cooling of the cooling mechanisms 4 of different units.

[0053] See also Figures 3 to 7 and Figures 9-10The water distribution component 42 includes a water distribution main pipe 421 fixedly installed at the water outlet end of the valve 412, a ring-shaped water distribution branch pipe 422 connected to the inner cavity of the water distribution main pipe 421 is fixedly installed on the outer circumference of the water distribution main pipe 421, and a reinforcement pipe 423 adapted to the ring-shaped water distribution branch pipe 422 is fixedly installed on the inner circumference of the ring-shaped water distribution branch pipe 422. A plurality of arc-shaped heat conduction blocks 424 located between the outer tank 1 and the inner tank 2 and in contact with the outer tank 1 and the inner tank 2 are fixedly installed on the ring-shaped water distribution branch pipe 422. The water distribution component 42 is responsible for evenly distributing the cooling water to each cooling area in the metal reduction tank. After the cooling water enters the water distribution main pipe 421 from the valve 412, it is evenly introduced into the ring-shaped water distribution branch pipe 422. The reinforcement pipe 423 enhances the structural strength of the ring-shaped water distribution branch pipe 422 to ensure that it can withstand the pressure of the cooling water. The arc-shaped heat-conducting block 424 on the annular water branch pipe 422 is in close contact with the outer tank 1 and the inner tank 2, and uses a large area of ​​heat exchange to quickly remove heat and achieve uniform temperature distribution. This process effectively avoids the problem of uneven temperature distribution in the traditional cooling water jacket design and improves the efficiency of the magnesium reduction reaction.

[0054] For further information, see Figures 2 to 7 and Fig.10 The annular water branch pipe 422, the reinforcement pipe 423 and the arc-shaped heat-conducting block 424 are all made of insulating heat-conducting materials, wherein the curvature of the outer and inner surfaces of the arc-shaped heat-conducting block 424 are respectively equal to the curvature of the outer tank 1 and the inner tank 2. The curvature of the arc-shaped heat-conducting block 424 matches the outer tank 1 and the inner tank 2, which can efficiently conduct heat while ensuring the stable operation of the cooling water jacket, thereby improving the safety and efficiency of the metal reduction tank.

[0055] See also Figures 3 to 8 The water distribution assembly 42 also includes a plurality of temperature sensors 425 fixedly mounted on the outer surface of the inner tank 2 and located between the arc-shaped heat-conducting blocks 424. The temperature sensors 425 play a role in real-time temperature monitoring in the metal reduction tank, and can accurately capture the temperature data of each unit area. Once the temperature of a certain area is abnormally high, the temperature sensor 425 immediately transmits a signal to the controller, and the controller then instructs the valve 412 of the corresponding unit to open and release cooling water for cooling.

[0056] See also Figures 2 to 4 6-7, the return water assembly 43 includes an insulated return water pipe 431 fixedly mounted on the outer circumference of the inner tank 2 and penetrating the insulated top plate 3, and a plurality of one-way valves 432 whose output ends are connected to the inner cavity of the insulated return water pipe 431 are fixedly mounted on the outer circumference of the insulated return water pipe 431. The insulation performance of the insulated return water pipe 431 reduces heat loss, maintains the low temperature state of the cooling water, and improves the cooling efficiency. The one-way valve 432 ensures that the cooling water can only flow in one direction, prevents confusion and unstable water pressure during the return process, and ensures smooth and efficient circulation of the cooling water.

[0057] For further information, see Figures 3 to 9 The descaling assembly 44 includes a plurality of electromagnetic coils 441 fixedly mounted on the annular water branch pipe 422, a concave connector 442 penetrating the arc-shaped heat-conducting block 424 is fixedly mounted on the electromagnetic coil 441, an electrode rod 443 penetrating the heat-insulating top plate 3 is fixedly connected to the concave connector 442, and an electromagnetic controller 444 fixedly connected to the heat-insulating top plate 3 is fixedly mounted on one end of the electrode rod 443 away from the concave connector 442. After the heat exchange is completed, the cooling water flows out through the one-way valve 432, which prevents the backflow of the cooling water, ensures the single directionality of the cooling water flow, and helps to maintain the stability and efficiency of the cooling water jacket. The cooling water then flows back along the heat-insulating return pipe 431 to form a closed loop. The use of insulation materials reduces heat loss and improves energy utilization efficiency. This process effectively promotes the rapid discharge and recycling of heat, ensuring the continuous and efficient cooling of the metal reduction tank during operation.

[0058] For further information, see Figures 3 to 7 The water inlet end of the one-way valve 432 is fixedly connected to the water outlet end of the annular water branch pipe 422. The water inlet end of the one-way valve 432 is fixedly connected to the water outlet end of the annular water branch pipe 422. This design ensures that the cooling water can smoothly enter the return water after completing the heat exchange. After the cooling water exchanges heat with the arc-shaped heat-conducting block 424 in the annular water branch pipe 422, it flows into the insulated return water pipe 431 through the one-way valve 432 in a directional manner, avoiding the backflow and chaotic flow of the cooling water, and ensuring the orderliness and efficiency in the cooling water jacket. This connection method is the key to realizing the recycling of cooling water, which helps to maintain the temperature stability and reaction efficiency of the metal reduction tank.

[0059] For further information, see Fig. 9 , the concave connector 442 is made of conductive high-temperature resistant material. The conductive high-temperature resistant material can be silicon carbide (SiC), boron carbide (B4C), boron nitride (BN), copper-based material or modified hyperbranched polyphenylene sulfide. Among them, silicon carbide is a semiconductor material with high hardness, high wear resistance and good electrical conductivity, and can maintain dimensional stability in an environment with large temperature changes. Boron carbide has a high melting point, excellent electrical conductivity and good chemical stability, which can ensure the normal operation of the equipment in a high-temperature environment. Boron nitride has a high melting point, good electrical conductivity and chemical stability, and is often used in high-temperature electronic components and ceramic materials and other fields. Copper-based materials such as Cu-Cr-Zr alloy have an electrical conductivity of ≥75% IACS and a strength greater than 400MPa at room temperature. The modified hyperbranched polyphenylene sulfide can significantly improve its electrical conductivity and thermal conductivity by adding modified silver-loaded carbon nanotubes. At the same time, the concave connector 442 made of conductive high-temperature resistant material ensures that the circuit between the electromagnetic coils 441 is stable and resistant to high temperatures, thereby ensuring the continuous and effective operation of the descaling component 44 in the high-temperature working environment of the metal reduction tank.

[0060] For further information, see Figure 7 and Fig. 9 The arc-shaped heat-conducting blocks 424 and the electromagnetic coils 441 are staggered and evenly distributed on the annular water distribution branch pipe 422. This design is intended to optimize the heat exchange efficiency and anti-scaling effect. The even distribution of the arc-shaped heat-conducting blocks 424 can ensure that the tank temperature is evenly reduced to avoid local overheating; while the staggered arrangement of the electromagnetic coils 441 can act on the cooling water in all directions to effectively prevent scale formation. The combination of the two improves the heat exchange efficiency, thereby improving the overall performance of the metal reduction tank and the efficiency of the magnesium reduction reaction.

[0061] For further information, see Figures 1-2 A sealing gasket 6 coaxial with the insulating top plate 3 is fixedly installed on the top of the insulating top plate 3, a cover plate 7 is bolted to the top of the insulating top plate 3 and directly above the sealing gasket 6, and a covered vacuum tube 8 penetrating the cover plate 7 is fixedly installed at the center of the top of the cover plate 7. The sealing gasket 6 is made of high-temperature resistant graphite material to ensure that the cover plate 7 and the insulating top plate 3 are tightly sealed and leak-proof to prevent heat and gas leakage. The cover plate 7 is tightened by bolts to further consolidate the sealing effect. The covered vacuum tube 8 is connected to the vacuum device to completely remove the air in the tank, create an oxygen-free reduction environment, and ensure the efficient and pure magnesium reduction reaction, thereby improving production and product quality.

[0062] For further information, see Figures 1 to 4 The sealing gasket 6 is made of high temperature resistant graphite material. It ensures the sealing performance in the high temperature working environment of the metal reduction tank. The graphite material has excellent high temperature resistance, oxidation resistance and chemical stability, which can effectively prevent the aging, deformation or failure of the sealing gasket caused by high temperature, thereby maintaining a close fit between the cover plate 7 and the insulating top plate 3 to prevent heat and gas leakage. This design ensures a pure and efficient environment for the reduction reaction, which is crucial to improving production and quality.

[0063] For further information, see Figures 4 to 6 The inner surface of the inner tank 2 is provided with a phase change thermal storage material coating 5. In the initial heating stage in the furnace, the phase change thermal storage material coating 5 can quickly absorb and store a large amount of heat. When the temperature in the tank fluctuates or decreases, it can immediately release the previously stored heat, thereby maintaining the temperature in the tank within a relatively constant and appropriate range. This design not only ensures that the magnesium reduction reaction can be carried out under the optimal temperature conditions, but also significantly improves the reaction efficiency and consistency of product quality.

[0064] When used specifically, the working principle of the present invention is as follows:

[0065] When using the metal reduction tank, first, the staff will place the reduction tank securely at a predetermined position in the furnace, and then the raw materials are carefully added into the inner tank 2.

[0066] Next, the cover plate 7 is firmly covered and tightly fitted with the sealing gasket 6 through bolts to form an excellent sealing effect. This step effectively prevents the leakage of heat and gas, creating a pure and efficient environment for the reduction reaction.

[0067] Afterwards, the vacuum pumping device is connected to the vacuum pumping tube 8 with a cover, and a thorough vacuum pumping operation is performed on the tank, further ensuring the smooth progress of the reduction reaction.

[0068] When all preparations are ready, the furnace starts to start and gradually heats the reduction tank. During this process, multiple temperature sensors 425 installed on the outer surface of the inner tank 2 monitor the temperature of each unit area of ​​the reduction tank in real time. Once the temperature of a certain area is found to be abnormally high, the temperature sensor 425 will quickly transmit this data to the controller. Under the command of the controller, the valve 412 on the corresponding unit cooling mechanism 4 will be immediately opened, and the cooling water will be accurately transported to the water distribution component 42 along the insulated water supply pipe 411.

[0069] Inside the water distribution assembly 42, the cooling water first enters the water distribution main pipe 421, and then is evenly distributed to a number of annular water distribution branches 422. When the cooling water flows through the annular water distribution branches 422, heat exchange occurs with the cooling arc-shaped heat-conducting blocks 424 in close contact. Since the inner and outer arc surfaces of these arc-shaped heat-conducting blocks 424 perfectly match the arcs of the outer tank 1 and the inner tank 2, respectively, they can maximize the contact area, quickly absorb and disperse the high temperature on the reduction tank, and take away the heat through the coolant, ensuring that the temperature distribution of the entire tank body is uniform, and effectively avoiding the generation of temperature gradients.

[0070] After completing the heat exchange, the cooling water flows out through the one-way valve 432 and flows back to the cooling water jacket along the insulated return pipe 431, forming an efficient circulation loop.

[0071] At the same time, the descaling component 44 also begins to play an important role. After the electromagnetic controller 444 is powered on, it controls the electromagnetic coil 441 to be energized, and the concave connector 442 connects several electromagnetic coils 441 to form a complete closed circuit. During this process, the electromagnetic coil 441 generates an alternating magnetic field. This magnetic field affects the calcium, magnesium and other ions contained in the cooling water, changing the crystal form of these ions. Normally, the calcium and magnesium ions in the cooling water are easily crystallized and deposited on the pipe wall, etc., forming hard scale, which not only reduces the cooling efficiency, but also may block the pipeline and affect the stable operation of the system. However, under the action of the alternating magnetic field, the crystallization process of these ions is disturbed, and they no longer crystallize and deposit in the conventional way, but form loose tiny particles. These tiny particles will not be firmly attached to the pipe wall, but can be smoothly discharged from the cooling jacket with the water flow, ensuring the long-term stable operation of the cooling water jacket.

[0072] In addition, the phase change thermal storage material coating 5 on the inner tank 2 also plays a key role. In the initial heating stage in the furnace, it can quickly absorb and store a large amount of heat. When the temperature inside the tank fluctuates or tends to decline, the phase change thermal storage material coating will immediately release the previously stored heat, maintaining the temperature inside the tank within a relatively constant and appropriate range, ensuring that the magnesium reduction reaction can be carried out under the optimal temperature conditions, significantly improving the reaction efficiency and consistency of product quality.

[0073] Through this series of ingenious designs and optimizations, the entire metal reduction tank not only successfully solves the limitations of the traditional vertical magnesium metal reduction tank in the cooling water jacket design, but also achieves uniformity and high efficiency in temperature distribution, bringing significant progress to the development of magnesium smelting technology.

[0074] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A metal reduction tank, comprising an outer tank (1) and an inner tank (2) fixedly mounted on the inner bottom of the outer tank (1) and coaxial with the outer tank (1), characterized in that: A heat-insulating top plate (3) coaxial with the outer tank (1) is fixedly mounted on the top of the outer tank (1), and a plurality of unit cooling mechanisms (4) are arranged on the outer circumferential surface of the inner tank (2); The unit cooling mechanism (4) comprises a water supply component (41), a water distribution component (42), a water return component (43) and a descaling component (44); The water supply assembly (41) comprises an insulated water supply pipe (411) fixedly mounted on the outer circumferential surface of the inner tank (2) and penetrating the insulated top plate (3); a plurality of valves (412) in communication with the inner cavity of the insulated water supply pipe (411) are fixedly mounted on the outer circumferential surface of the insulated water supply pipe (411); The water distribution assembly (42) comprises a water distribution main pipe (421) fixedly mounted on the water outlet end of the valve (412); an annular water distribution branch pipe (422) in communication with the inner cavity of the water distribution main pipe (421) is fixedly mounted on the outer circumferential surface of the water distribution main pipe (421); a reinforcing pipe (423) adapted to the annular water distribution branch pipe (422) is fixedly mounted on the inner circumferential surface of the annular water distribution branch pipe (422); and a plurality of arc-shaped heat-conducting blocks (424) located between the outer tank (1) and the inner tank (2) and in contact with the outer tank (1) and the inner tank (2) are fixedly mounted on the annular water distribution branch pipe (422); The water distribution assembly (42) further comprises a plurality of temperature sensors (425) fixedly mounted on the outer circumferential surface of the inner tank (2) and located between the arc-shaped heat-conducting blocks (424); The water return assembly (43) comprises an insulated water return pipe (431) fixedly mounted on the outer circumferential surface of the inner tank (2) and penetrating the insulated top plate (3); a plurality of one-way valves (432) whose output ends are connected to the inner cavity of the insulated water return pipe (431) are fixedly mounted on the outer circumferential surface of the insulated water return pipe (431).

2. A metal reduction tank according to claim 1, characterized in that: The descaling assembly (44) comprises a plurality of electromagnetic coils (441) fixedly mounted on the annular water branch pipe (422); a concave connector (442) penetrating the arc-shaped heat-conducting block (424) is fixedly mounted on the electromagnetic coil (441); an electrode rod (443) penetrating the heat-insulating top plate (3) is fixedly connected to the concave connector (442); an electromagnetic controller (444) fixedly connected to the heat-insulating top plate (3) is fixedly mounted on one end of the electrode rod (443) away from the concave connector (442).

3. A metal reduction tank according to claim 1, characterized in that: The outer tank (1) and the inner tank (2) are both made of a ceramic particle reinforced metal matrix composite material, wherein the ceramic particle reinforced metal matrix composite material is made of high-strength ceramic particles uniformly dispersed in a high-temperature resistant metal matrix.

4. A metal reduction tank according to claim 1, characterized in that: The annular water branch pipe (422), the reinforcement pipe (423) and the arc-shaped heat-conducting block (424) are all made of insulating heat-conducting materials, wherein the curvature of the outer and inner curved surfaces of the arc-shaped heat-conducting block (424) are respectively equal to the curvature of the outer tank (1) and the inner tank (2).

5. The metal reduction tank according to claim 1, characterized in that: The water inlet end of the one-way valve (432) is fixedly connected to the water outlet end of the annular water branch pipe (422).

6. A metal reduction tank according to claim 2, characterized in that: The concave connecting piece (442) is made of conductive high temperature resistant material.

7. A metal reduction tank according to claim 2, characterized in that: The arc-shaped heat-conducting blocks (424) and the electromagnetic coils (441) are interlaced and evenly distributed on the annular water branch pipe (422).

8. The metal reduction tank according to claim 1, characterized in that: A sealing gasket (6) coaxial with the insulating top plate (3) is fixedly mounted on the top of the insulating top plate (3); a cover plate (7) is bolted to the top of the insulating top plate (3) and directly above the sealing gasket (6); and a covered vacuum pipe (8) penetrating the cover plate (7) is fixedly mounted at the center of the top of the cover plate (7).

9. A metal reduction tank according to claim 8, characterized in that: The sealing gasket (6) is made of high-temperature resistant graphite material.

10. The metal reduction tank according to claim 1, characterized in that: The inner circumferential surface of the inner tank (2) is provided with a phase-change heat storage material coating (5).

Images