Integrated composite heating metal purification device

Abstract

The utility model relates to metal purification technical field, and disclose a kind of integrated composite heating's metal purification device, including vacuum box, the heating ring of being additionally provided in the vacuum box inside upper and lower sides of heater, the initial position of heating ring and heater is all in the outside middle end of crucible.The utility model is by the height of moving heating ring, no matter the temperature requirement above or below of crucible, heating ring is quickly adjusted to appropriate position, provides heat for specific area, to avoid the problem that certain part of crucible overheats or is insufficient, heating ring pre-absorbs heat at heater, therefore when heating ring is close to crucible, efficiently heat is transferred to the metal area of lower temperature, improve the efficiency of heat energy transmission, reduce the time required for metal temperature rise, reach the beneficial effect that the heating range of adjusting heating metal is heated evenly.

Description

Technical Field

[0001] This utility model relates to the field of metal purification technology, specifically to an integrated composite heating metal purification device. Background Technology

[0002] In traditional horizontal zone melting methods for preparing high-purity metals, the cooling system of the zone melting device is difficult to apply, and the complex solid-liquid interface morphology often makes it difficult to fix the enrichment zones formed by impurity elements at both ends. This makes it difficult to achieve optimal results when cutting the purified samples at both ends in horizontal zone melting. A search revealed a metal purification device and method with publication number CN 113462903 A. The device includes a vacuum chamber, the interior of which is under vacuum. Inside the vacuum chamber are a fixing mechanism, a crucible, a heater, and a lifting mechanism. The fixing mechanism is used to fix the crucible, which has a receiving cavity whose shape and size match the shape and size of the metal sample to be purified. The heater is arranged around the crucible and matches its shape. The lifting mechanism is used to raise and lower the heater. This solves the problem that existing vertical zone melting devices cannot purify large-size metals and have low preparation efficiency.

[0003] However, the aforementioned existing technology uses a relatively simple heating method during the heating process, with only the heater lifting and lowering to heat the metal. Due to the single heat source, the temperature near the heat source is too high, while the temperature rises slowly in areas far from the heat source. This results in uneven heating of the material. Due to the uneven nature of the heat, some impurities are not concentrated near the metal end during the heating and purification process, which in turn affects the improvement of the metal's purity. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an integrated composite heating metal purification device, which has advantages such as adjusting the heating range of the metal to ensure uniform heating of the material and improving the purity of the purified metal, thus solving the aforementioned technical problems.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated composite heating metal purification device, comprising a vacuum chamber, a crucible disposed inside the vacuum chamber, a heater sleeved on the outside of the crucible, a lifting mechanism for raising and lowering the heater body connected to the side of the heater, heating rings located above and below the heater disposed inside the vacuum chamber, the initial positions of the heating rings and the heater being at the middle of the outer side of the crucible, a locking block connected to the side wall of the heating ring, a threaded sleeve connected to the inner side of the locking block, a connecting rod slidably disposed inside the vacuum chamber on the inner side of the threaded sleeve, and the connecting rod being driven to rotate by a servo motor disposed outside the vacuum chamber.

[0007] The servo motor is a Siemens 1FT6 series motor.

[0008] Preferably, the heater and the heating ring have the same diameter, and the heating ring is used to absorb the heat when the heater heats the crucible.

[0009] Preferably, the card block is also equipped with slide rails on both sides to limit its own swing. The slide rails are composed of two rods and slide against the side walls of the card block to limit its position.

[0010] Preferably, the slide rail surface is equipped with a plurality of temperature sensors for sensing the temperature of the material inside the crucible, spaced apart from top to bottom. The temperature sensors are S-type thermocouples or K-type thermocouples, both of which are existing temperature sensors and are commercially available. Furthermore, this application does not improve the temperature sensors, so the principle will not be explained in detail here.

[0011] Preferably, the temperature sensor is also connected via wire to a PLC controller for controlling all structures inside the vacuum chamber. The PLC controller also controls the servo motor of the connecting rod. The PLC controller is either an Omron CP1H or a Schneider M221, both of which are existing controllers and are commercially available. Furthermore, this application does not improve the PLC controller, so the principle will not be explained in detail here.

[0012] Preferably, the threaded sleeve corresponding to the locking block connected to the heating ring above the heater is located in the upper half of the connecting rod, and the threaded sleeve corresponding to the locking block connected to the heating ring below the heater is located in the lower half of the connecting rod, and the length of both threaded sleeves does not exceed 50% of the height inside the crucible.

[0013] Compared with the prior art, this utility model provides an integrated composite heating metal purification device, which has the following beneficial effects:

[0014] 1. This utility model, by adjusting the height of the heating ring, can quickly adjust to the appropriate position to meet the temperature requirements above or below the crucible, providing heat to specific areas. This avoids the problem of overheating or underheating in certain parts of the crucible. The heating ring pre-absorbs heat at the heater, so when the heating ring is close to the crucible, it efficiently transfers heat to the lower-temperature metal area, improving the efficiency of heat transfer, reducing the time required for the metal to heat up, and achieving the beneficial effect of adjusting the heating range of the metal to ensure uniform heating of the material.

[0015] 2. This utility model monitors the internal temperature of the crucible through a temperature sensor and controls the movement of the heater and heating ring through a PLC to ensure that the metal is heated evenly during the heating process. The PLC controls the servo motor to move the heating ring up and down, thereby supplementing the temperature of specific areas of the crucible. By pre-absorbing heat near the heater, the heating ring can quickly and effectively transfer heat to a certain area of ​​the crucible when heating is required, thus achieving the beneficial effect of improving the purity of the purified metal. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a front sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting rod structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the slide rail structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the heating ring structure of this utility model.

[0021] The components include: 1. Vacuum chamber; 2. Crucible; 3. Heater; 4. Heating ring; 5. Clamping block; 501. Screw sleeve; 6. Connecting rod; 7. Slide rail; 701. Temperature sensor; 8. PLC controller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0023] Please see Figure 1-5The metal awaiting heat purification is hoisted from the inlet of the vacuum chamber 1 into the crucible 2 using a hoisting device. Then, the PLC, based on a control program, starts the heater 3 for heating and purification. The temperature control of the heater 3 is disclosed in referenced document CN 113462903 A and will not be described in detail here. Furthermore, a lifting mechanism controls the up-and-down movement of the heater 3, thereby concentrating metal impurities in the crucible near the end. When the heater 3 overheats in a certain area outside the crucible 2, the PLC controller 8 starts the servo motor to rotate the connecting rod 6. The forward or reverse rotation of the connecting rod 6 drives the screw sleeve 501 to rotate synchronously. (See the attached instruction manual.) Figure 2 It can be seen that the connection between the connecting rod 6 and the threaded sleeve 501 is rectangular, which ensures that the threaded sleeve 501 can slide freely on the surface of the connecting rod 6. As the threaded sleeve 501 begins to rotate, it will move relative to the locking block 5. Since the locking block 5 is clamped and limited on both sides by the slide rail 7, the locking block 5 will not swing, but will only move in a straight up and down direction. As the locking block 5 begins to move in a straight up and down direction, it will drive the heating ring 4 located above or below the heater 3 to move closer to the heater 3. Since the temperature of the heating ring 4 is lower than that of the heater 3, the temperature of the heater 3 will be preferentially transferred to the heating ring 4, thereby reducing the excessively high temperature at a certain point of the crucible 2. Example 2

[0024] Please see Figure 1-5 The PLC controller 8 continuously controls the heater 3 to heat and purify the metal inside the crucible 2. Since the heater 3 is a single heat source, the portion of the crucible away from the heater 3 begins to cool as it moves up and down on the surface of the crucible 2. The temperature sensor 701 transmits the surface temperature data of the crucible 2 to the PLC controller 8, which then determines whether additional heating is needed for a given area. The PLC controller 8 technology used in this part is existing metal purification technology and is widely used in the market. Its code is:

[0025] pascal

[0026] VAR

[0027] temperature : REAL; / / Current temperature

[0028] threshold : REAL := 500.0; / / Set the threshold

[0029] heaterStatus : BOOL; / / Heater status

[0030] END_VAR

[0031] / / Read the current temperature from the temperature sensor

[0032] temperature := ReadTemperature(701); / / Pseudo-function, replace with the actual reading function

[0033] / / Determine if the temperature is below the threshold

[0034] IF temperature <threshold THEN

[0035] heaterStatus := TRUE; / / Start the heater

[0036] ELSE

[0037] heaterStatus := FALSE; / / Turn off the heater

[0038] END_IF;

[0039] / / Control heater output

[0040] SetHeaterOutput(heaterStatus); / / Pseudo-function, replace with the actual output function; Since this application does not involve system improvement, it will not be described in detail here. After successful determination, the PLC controller 8 starts the servo motor to control the heating ring 4 located above or below the heater 3 to move. If the area above the crucible 2 needs to be heated, the heating ring 4 located above the heater 3 is driven to rise to that area. Since the heating ring 4 has absorbed heat in advance at the heater 3, the temperature of the heating ring 4 is higher than the temperature of that area of ​​the crucible 2. The heat is transferred from high to low to the area to be heated in the crucible 2, so that the metal is heated evenly.

[0041] In use, the metal awaiting heating and purification is hoisted from the inlet of the vacuum chamber 1 into the crucible 2 using a hoisting device. Then, the PLC, based on a control program, starts the heater 3 for heating and purification. A lift controls the up-and-down movement of the heater 3, thus concentrating metal impurities in the crucible near the end. If the heater 3 overheats in a certain area outside the crucible 2, the PLC controller 8 activates a servo motor to rotate the connecting rod 6. As the connecting rod 6 rotates forward or backward, it drives the screw sleeve 501 to rotate synchronously. The screw sleeve 501 begins to rotate and simultaneously moves relative to the locking block 5. As the locking block 5 begins to move linearly up and down, it moves the heating ring 4, located above or below the heater 3, closer to the heater 3. Since the temperature of the heating ring 4 is lower than that of the heater 3, the heat from the heater 3 will preferentially transfer to the heating ring 4, thereby reducing the temperature of a certain area of ​​the crucible 2. When the temperature is too high, the PLC controller 8 continuously controls the heater 3 to heat and purify the metal inside the crucible 2. Since the heater 3 is a single heat source, the part of the crucible away from the heater 3 begins to cool down when it moves up and down on the surface of the crucible 2. The temperature sensor 701 transmits the surface temperature data of the crucible 2 to the PLC controller 8, which determines whether the temperature drop in a certain area needs to be supplemented. The PLC controller 8 starts the servo motor to control the heating ring 4 located above or below the heater 3 to move. If the area above the crucible 2 needs to be heated, the heating ring 4 located above the heater 3 is driven to rise to that area. Since the heating ring 4 has absorbed heat at the heater 3 in advance, the temperature of the heating ring 4 is higher than the temperature of that area of ​​the crucible 2. The heat is transferred from high to low to the area of ​​the crucible 2 to be heated, so that the metal is heated evenly.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated composite heating metal purification device, comprising a vacuum chamber (1), a crucible (2) disposed inside the vacuum chamber (1), a heater (3) sleeved on the outside of the crucible (2), and a lifting mechanism for raising and lowering the heater (3) body connected to the side of the heater (3), characterized in that: The vacuum chamber (1) is also provided with heating rings (4) located above and below the heater (3). The initial positions of the heating rings (4) and the heater (3) are both at the middle of the outer side of the crucible (2). The side wall of the heating ring (4) is connected to a locking block (5). The inner side of the locking block (5) is connected to a threaded sleeve (501). The inner side of the threaded sleeve (501) is slidably connected to a connecting rod (6) located inside the vacuum chamber (1). The connecting rod (6) is driven to rotate by a servo motor located outside the vacuum chamber (1).

2. The integrated composite heat-based metal purification device of claim 1, wherein: The heater (3) has the same diameter as the heating ring (4), and the heating ring (4) is used to absorb the heat when the heater (3) heats the crucible.

3. The integrated combined heating metal purification device according to claim 1, wherein: The card block (5) is also equipped with slide rails (7) on both sides to limit its swing. The slide rails (7) are composed of two rods and slide on the side walls of the card block (5) to limit its position.

4. The integrated combined heating metal purification apparatus according to claim 3, wherein: The slide rail (7) surface is equipped with multiple temperature sensors (701) for sensing the temperature of the material inside the crucible, spaced apart from top to bottom.

5. The integrated combined heating metal purification apparatus according to claim 4, wherein: The temperature sensor (701) is also connected via wire to a PLC controller (8) for controlling all structures inside the vacuum chamber (1), which in turn controls the servo motor of the connecting rod (6).

6. The integrated combined heating metal purification device according to claim 1, wherein: The threaded sleeve (501) corresponding to the locking block (5) connected to the heating ring (4) above the heater (3) is located in the upper half of the connecting rod (6), and the threaded sleeve (501) corresponding to the locking block (5) connected to the heating ring (4) below the heater (3) is located in the lower half of the connecting rod (6). The length of both threaded sleeves (501) does not exceed 50% of the height inside the crucible (2).

Images