An electromagnetic directional solidification aluminum purification system

Abstract

The present invention discloses an electromagnetic directional solidification aluminum purification system, comprising a light rail arranged on a ground foundation; and a mobile gantry slidably mounted on the light rail; a lifting and hoisting assembly is arranged on the mobile gantry; an aluminum receiving platform for fixing a graphite crucible and a discharge tilting platform for placing and flipping the crucible are arranged at both ends of the inner side of the light rail, respectively; a water collection system is arranged between the aluminum receiving platform and the discharge tilting platform on the inner side of the light rail, and the water collection system is arranged below the ground foundation; an electromagnetic condenser is arranged above the water collection system; a heating and heat preservation furnace body is arranged above the electromagnetic condenser; and a servo frequency conversion control cabinet for controlling the entire system and a water cooling system for controlling the entire waterway are also arranged at the outer end of the light rail. The electromagnetic directional solidification aluminum purification system of the present invention is easy to operate, each process can be controlled and adjusted separately, and the product quality can be effectively guaranteed.

Description

Technical Field

[0001] The invention relates to an aluminum purification system, in particular to an electromagnetic directional solidification aluminum purification system, and belongs to the technical field of aluminum purification. Background Art

[0002] With the continuous progress and development of science and technology, ultra-high purity aluminum (aluminum products with a purity of 5N5 or above are called ultra-high purity aluminum) has been widely used in the fields of electronics, aviation, navigation, chemical industry and defense industry, and its usage has increased year by year; but now there are very few domestic enterprises that can produce 5N5 ultra-high purity aluminum that meets user needs, and there are only a handful of research and development units. Therefore, most of the ultra-high purity aluminum needed in China needs to be imported. How to solve the above problems is the top priority of domestic demand; although some domestic enterprises have been trial-producing or mass-producing ultra-high purity aluminum, there is a large gap compared with similar foreign enterprises and domestic requirements for ultra-high purity aluminum, and there are many deficiencies. First, the equipment and process are relatively complex. It uses multi-disciplinary technology, which makes the investment cost too high and inconvenient to master and control; second, the efficiency of removing impurities is not ideal, and qualified products cannot be produced; third, the energy consumption is high, reaching more than 15,000KWH / ton, which is contrary to the national energy conservation and emission reduction policy. Although it has been reduced, it is still about 10,000 degrees; fourth, although the products are produced, the quality is still unstable, which makes it impossible for domestic users to use them. Therefore, it is urgent to find a new method to purify aluminum. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes an electromagnetic directional solidification aluminum purification system, which is easy to operate, each process can be controlled and adjusted separately, and the product quality can be effectively guaranteed.

[0004] The electromagnetic directional solidification aluminum purification system of the present invention comprises a light rail arranged on a ground foundation; and a mobile gantry slidably mounted on the light rail; a lifting and hoisting assembly is arranged on the mobile gantry, and the mobile gantry can move on the light rail and can be moved and switched between multiple positions; the lifting and hoisting assembly adopts an elevator driven by a servo motor in the prior art, and has the functions of ascending and descending; and the descending speed is precisely controlled, and when descending, it descends slowly; when ascending, it is rapidly lifted, which saves the time of the whole process and improves the overall efficiency; the inner ends of the light rail are respectively provided with a plurality of lifting and hoisting assemblies for fixing The aluminum receiving platform of the graphite crucible and the unloading and tilting platform for placing and turning the crucible. The aluminum rod after cooling and forming is always in a vertical state after being lifted from the previous process. After being placed on the unloading and tilting platform, the crucible is tilted horizontally downward by rotating the angle, and the aluminum rod in the crucible is taken out. After the unqualified part of the end is removed, the finished parts are obtained. A sump is set between the aluminum receiving platform and the unloading and tilting platform on the inner side of the light rail. The sump will drain the excess water from the sump through the drainage pump in time according to the capacity of the cooling water, and keep the water volume in the sump relatively stable to ensure the normal operation of the whole system. The water collection pit is arranged below the ground foundation; a ring of nozzles is arranged at the bottom of the electromagnetic condenser; a drainage pump is arranged at the bottom of the water collection pit; the nozzle is connected to the outlet pipe of the water cooling system; the drainage pump is connected to the return pipe of the water cooling system; an electromagnetic condenser is arranged above the water collection pit. When the heated graphite crucible passes through the electromagnetic condenser, the stirrer power supply is started to generate a magnetic field force on the aluminum liquid in the crucible. By adjusting the power supply voltage, current and frequency, the rotational flow rate and direction of the aluminum liquid in the crucible can be controlled to achieve the purpose of stirring and purifying, and finally meet the purity requirements of the aluminum liquid; at the same time, it can quickly cool the aluminum liquid that has passed through the electromagnetic condenser. The aluminum liquid after the electromagnetic stirrer allows the aluminum liquid to crystallize quickly; the cooling capacity of the device should match the aluminum liquid passing through this area; a heating and insulation furnace body is arranged above the electromagnetic condenser, and the heating and insulation furnace body heats the aluminum liquid and then keeps it warm, and the heating power of the heating and insulation furnace body matches the volume of the aluminum liquid; the outer end of the light rail is also provided with a servo frequency conversion control cabinet for the control of the entire system and a water cooling system for the control of the entire water circuit, the water cooling system cools the electromagnetic coil and cools the melt solidification, the servo frequency conversion control cabinet completes the control of the melt condensation speed, and the electromagnetic stirring power supply frequency conversion control, as well as the electrical control of the entire system.

[0005] Furthermore, the water cooling system includes a cabinet; water outlet pipes and return pipes are arranged on both sides of the cabinet; a water storage tank and an ion tank are arranged inside the cabinet; the ion tank is connected to a water replenishment valve; the ion tank is connected to a water inlet of the water storage tank; the bottom of the water storage tank is connected to the water outlet pipe through a water pump; a heat exchanger connected to the return pipe is also arranged inside the cabinet; the heat exchanger is connected to the water storage tank; and a fan is arranged outside the heat exchanger.

[0006] Furthermore, the lifting and hoisting assembly is a lift driven by a servo motor; a crucible lifting claw is provided at the front end of the lift.

[0007] Furthermore, the aluminum receiving platform is a frame with a crucible containing groove in the middle.

[0008] Furthermore, the unloading tilting platform comprises a turning frame; a turning table driven by a motor is arranged on the turning frame; and a crucible clamping slot is arranged on the turning table.

[0009] Furthermore, the purification method of the system is as follows:

[0010] The first step is to load the aluminum liquid. First, the crucible is sent to the aluminum receiving platform, and the refined aluminum to be purified is loaded into the crucible;

[0011] The second step is crystallization. The graphite crucible containing aluminum liquid is hoisted into the heating and heat preservation furnace body through the lifting and hoisting assembly on the mobile gantry, and the crucible is heated by the heating and heat preservation furnace body; then, the lifting and hoisting assembly and the electromagnetic stirring device are started through the servo frequency conversion control cabinet, and the crucible is lowered from the heating and heat preservation furnace body at a constant speed by using the lifting and hoisting assembly. The crucible enters the electromagnetic condenser at a constant speed, and the electromagnetic condenser stirs and cools the lowered crucible part. The crucible continues to descend to the water collection system, and when it descends into place, the heating is turned off;

[0012] The third step is the finished product. After the crucible is completely cooled, the crucible is quickly lifted by the lifting and hoisting assembly, and moved to the unloading and tilting platform by the mobile gantry. The crucible is turned to a horizontal state through the unloading and tilting platform, the aluminum ingot is taken out, and the impurities at the upper and lower ends of the aluminum ingot are cut off on the sawing machine. The remaining part is the finished product.

[0013] Compared with the prior art, the electromagnetic directional solidification aluminum purification system of the present invention is well organized and easy to operate, each process can be controlled and adjusted independently, and the product quality can be effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the sump structure of the present invention.

[0016] Figure 3 It is a schematic diagram of the cabinet structure of the water cooling system of the present invention.

[0017] Figure 4 It is a schematic diagram of the internal structure of the water cooling system of the present invention. DETAILED DESCRIPTION

[0018] Embodiment 1:

[0019] like Figure 1 and Figure 2 As shown, the electromagnetic directional solidification aluminum purification system of the present invention comprises a light rail 1 arranged on the ground foundation; and a mobile gantry 2 slidably mounted on the light rail; a lifting and hoisting assembly 3 is arranged on the mobile gantry 2, and the mobile gantry can move on the light rail and can be moved and switched between multiple positions; the lifting and hoisting assembly adopts a servo motor driven elevator in the prior art, which has the functions of rising and falling; and the falling speed is accurately controlled, and when falling, it is slowly descended; when rising, it is quickly lifted, which saves the time of the whole process and improves the overall efficiency; the inner ends of the light rail 1 are respectively provided with a lifting and hoisting assembly 3 for solidification. The aluminum receiving platform 4 of the graphite crucible is fixed, and the unloading tilting platform 5 is used to place and flip the crucible. The aluminum rod after cooling and forming is always in a vertical state after being lifted from the previous process. After being placed on the unloading tilting platform, the crucible is tilted to a horizontal position downward by rotating the angle, and the aluminum rod in the crucible is taken out, and then the unqualified part of the end is removed to obtain the finished parts. A water collection pit 6 is arranged between the aluminum receiving platform and the unloading tilting platform on the inner side of the light rail 1. The water collection pit timely drains excess water from the water storage pit according to the capacity of the cooling water, and keeps the water volume in the water storage pit relatively stable to ensure the normal operation of the whole system. The pit 6 is arranged below the ground foundation; a ring of nozzles 61 is arranged at the lower part of the electromagnetic condenser; a drainage pump 62 is arranged at the bottom of the sump 6; the nozzle 61 is connected to the outlet pipe of the water cooling system; the drainage pump 62 is connected to the return pipe of the water cooling system; an electromagnetic condenser 7 is arranged above the sump 6. When the heated graphite crucible passes through the electromagnetic condenser, the stirrer power supply is started to generate a magnetic field force on the aluminum liquid in the crucible. By adjusting the power supply voltage, current and frequency, the rotational flow rate and direction of the aluminum liquid in the crucible can be controlled to achieve the purpose of stirring and purifying, and finally meet the requirements of the purity of the aluminum liquid; at the same time, the graphite crucible that has passed through the electromagnetic condenser can be quickly cooled. The aluminum liquid after the electromagnetic stirrer is cooled, so that the aluminum liquid can be quickly crystallized and formed; the cooling capacity of the device should match the aluminum liquid passing through the area; a heating and heat preservation furnace body 8 is arranged above the electromagnetic condenser 7, and the heating and heat preservation furnace body heats the aluminum liquid and then keeps it warm, and the heating power of the heating and heat preservation furnace body matches the volume of the aluminum liquid; the outer end of the light rail 1 is also provided with a servo frequency conversion control cabinet 9 for the control of the entire system and a water cooling system 10 for the control of the entire waterway, the water cooling system cools the electromagnetic coil and the melt solidification cooling, the servo frequency conversion control cabinet completes the control of the melt condensation speed, and the electromagnetic stirring power frequency conversion control, as well as the electrical control of the entire system;

[0020] The lifting and hoisting assembly 3 is a lift driven by a servo motor; a crucible lifting claw is arranged at the front end of the lift. The aluminum receiving platform 4 is a frame with a crucible receiving slot arranged in the middle. The unloading tilting platform 5 includes a turning frame 51; a turning platform 52 driven by a motor is arranged on the turning frame; and a crucible clamping slot 53 is arranged on the turning platform.

[0021] like Figure 3 and Figure 4 As shown, the water cooling system 10 includes a cabinet 101; water outlet pipes 102 and return pipes 103 are arranged on both sides of the cabinet 101; a water storage tank 104 and an ion tank 105 are arranged inside the cabinet 101; the ion tank 105 is connected to a water replenishment valve; the ion tank 105 is connected to the water inlet of the water storage tank 104; the bottom of the water storage tank 104 is connected to the water outlet pipe 102 through a water pump 106; a heat exchanger 107 connected to the return pipe is also arranged inside the cabinet 101; the heat exchanger 107 is connected to the water storage tank 104; a fan 108 is arranged outside the heat exchanger 107; external water is introduced into the ion tank through the water replenishment valve, and the treated deionized water enters the water storage tank through the ion tank; the water outlet pipe of the water storage tank cools the electromagnetic coil and the melt solidification cooling, and at the same time, the warm water in the sump is refluxed and sent to the water storage tank after heat dissipation.

[0022] Wherein, the purification method of the system is as follows:

[0023] The first step is to load the aluminum liquid. First, the crucible is sent to the aluminum receiving platform, and the refined aluminum to be purified is loaded into the crucible;

[0024] The second step is crystallization. The graphite crucible containing aluminum liquid is hoisted into the heating and heat preservation furnace body through the lifting and hoisting assembly on the mobile gantry, and the crucible is heated by the heating and heat preservation furnace body; then, the lifting and hoisting assembly and the electromagnetic stirring device are started through the servo frequency conversion control cabinet, and the crucible is lowered from the heating and heat preservation furnace body at a constant speed by using the lifting and hoisting assembly. The crucible enters the electromagnetic condenser at a constant speed, and the electromagnetic condenser stirs and cools the lowered crucible part. The crucible continues to descend to the water collection system, and when it descends into place, the heating is turned off;

[0025] The third step is the finished product. After the crucible is completely cooled, the crucible is quickly lifted by the lifting and hoisting assembly, and moved to the unloading and tilting platform by the mobile gantry. The crucible is turned to a horizontal state through the unloading and tilting platform, the aluminum ingot is taken out, and the impurities at the upper and lower ends of the aluminum ingot are cut off on the sawing machine. The remaining part is the finished product.

[0026] The above embodiments are only preferred implementations of the present invention, so all equivalent changes or modifications made according to the structures, features and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. An electromagnetic directional solidification aluminum purification system, characterized in that: It comprises a light rail arranged on a ground foundation; and a mobile gantry slidably mounted on the light rail; a lifting and hoisting assembly is arranged on the mobile gantry; an aluminum receiving platform for fixing a graphite crucible and a discharge tilting platform for placing and turning the crucible are arranged at both ends of the inner side of the light rail, a sump is arranged between the aluminum receiving platform and the discharge tilting platform on the inner side of the light rail, and the sump is arranged below the ground foundation; a drainage pump is arranged at the bottom of the sump; an electromagnetic condenser is arranged above the sump; a ring of nozzles is arranged at the lower part of the electromagnetic condenser; a heating and heat preservation furnace body is arranged above the electromagnetic condenser; a servo frequency conversion control cabinet for controlling the entire system is also arranged at the outer end of the light rail; the drainage pump is connected to the return pipe of the water cooling system; the nozzle is connected to the outlet pipe of the water cooling system; The water cooling system comprises a cabinet; water outlet pipes and water return pipes are arranged on both sides of the cabinet; a water storage tank and an ion tank are arranged inside the cabinet; the ion tank is connected to a water replenishment valve; the ion tank is connected to a water inlet of the water storage tank; the bottom of the water storage tank is connected to the water outlet pipe through a water pump; a heat exchanger connected to the water return pipe is also arranged inside the cabinet; the heat exchanger is connected to the water storage tank; a fan is arranged outside the heat exchanger; The lifting and hoisting assembly is a lift driven by a servo motor; a crucible lifting claw is arranged at the front end of the lift.

2. The electromagnetic directional solidification aluminum purification system according to claim 1, characterized in that: The aluminum receiving platform is a frame with a crucible containing groove in the middle.

3. The electromagnetic directional solidification aluminum purification system according to claim 1, characterized in that: The unloading tilting platform comprises a turning frame; a turning table driven by a motor is arranged on the turning frame; and a crucible clamping slot is arranged on the turning table.

4. The electromagnetic directional solidification aluminum purification system according to claim 1, characterized in that: The purification method of the system is as follows: The first step is to load the aluminum liquid. First, the crucible is sent to the aluminum receiving platform, and the refined aluminum to be purified is loaded into the crucible; The second step is crystallization. The graphite crucible containing aluminum liquid is hoisted into the heating and heat preservation furnace body through the lifting and hoisting assembly on the mobile gantry, and the crucible is heated by the heating and heat preservation furnace body; then, the lifting and hoisting assembly and the electromagnetic stirring device are started through the servo frequency conversion control cabinet, and the crucible is lowered from the heating and heat preservation furnace body at a constant speed by using the lifting and hoisting assembly. The crucible enters the electromagnetic condenser at a constant speed, and the electromagnetic condenser stirs and cools the lowered crucible part. The crucible continues to descend to the sump, and when it is in place, the heating is turned off; The third step is the finished product. After the crucible is completely cooled, the crucible is quickly lifted by the lifting and hoisting assembly, and moved to the unloading and tilting platform by the mobile gantry. The crucible is turned to a horizontal state through the unloading and tilting platform, the aluminum ingot is taken out, and the impurities at the upper and lower ends of the aluminum ingot are cut off on the sawing machine. The remaining part is the finished product.

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