Hot-pressing polycrystalline magnesium fluoride powder preparation device

Abstract

The utility model relates to the technical field of preparation devices, and discloses a hot-pressing polycrystal magnesium fluoride powder preparation device which comprises a supporting table, a filtering bin is fixedly installed on one side of the supporting table, a rectangular through hole is formed in one side of the filtering bin, a filtering plate is movably connected into the rectangular through hole in a sleeved mode, and the filtering plate is connected with the supporting table in a sleeved mode. A supporting table is arranged on the upper portion of the filtering bin, a PLC is fixedly installed on one side of the supporting table, the device further comprises taking-out assemblies used for taking out magnesium fluoride filter cakes, the taking-out assemblies are arranged on the two sides of the filtering bin, and the supporting table, the filtering bin, a filtering plate, a first fixing plate, a driving mechanism, a rotating frame and a limiting hole are used in cooperation; the effect of taking out a filter cake in the filter bin can be achieved, a user does not need to manually take out a filter plate and scrape and clean the filter cake, the filter cake is vibrated to fall into the containing bin under the action of a vibration motor and gravity, cleaning is thorough, use by the user is facilitated, and practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of preparation devices, in particular to a hot-pressed polycrystalline magnesium fluoride powder preparation device. Background Art

[0002] Hot-pressed polycrystalline magnesium fluoride is made from high-purity magnesium fluoride powder with uniform particle distribution and appropriate particle size through high temperature and high pressure processing. It has good polarization and infrared transmittance, making it an excellent infrared optical material, especially in the infrared band of 1-7μm, with a transmittance of over 90%. It has many characteristics such as high mechanical strength, strong thermal shock resistance, chemical corrosion resistance, and isotropy. The following is a detailed introduction to the preparation method of hot-pressed polycrystalline magnesium fluoride powder in the prior art: Step 1: Purify the raw materials, weigh 246g of industrial-grade MgSO4·7H2O Prepare a magnesium sulfate solution with a weight percentage concentration of 20%, adjust the pH value to 8, then add 60g of hydrogen peroxide with a weight percentage concentration of 30%, stir for 1 hour, and filter to obtain a purified magnesium sulfate solution; weigh 100g of industrial-grade sodium carbonate to prepare a sodium carbonate solution with a weight percentage concentration of 5%, add 20g of purified magnesium sulfate solution thereto, stir for 2 hours, and coprecipitate heavy metal impurities therein through reaction, and filter to obtain a purified sodium carbonate solution; the second step: prepare basic magnesium carbonate, and mix the purified magnesium sulfate solution and the purified The sodium carbonate solution is heated to 30°C, and then the magnesium sulfate solution is slowly added to the sodium carbonate solution under stirring, and the temperature is raised to 70°C. The reaction is kept at this temperature for 3 hours, filtered, and fully washed with pure water until there is no white precipitate in the washing water detected by BaCl2. The filtrate is concentrated and crystallized to obtain sodium sulfate, and the filter cake is basic magnesium carbonate. The third step is to prepare hot-pressed polycrystalline magnesium fluoride powder. The basic magnesium carbonate is prepared into a suspension with a solid content of 50%. CO2 gas is introduced into the suspension under stirring at a ventilation rate of 10m3 / h and the temperature is controlled at 0°C. ~40 ° C, the partial pressure of CO2 during the carbonization reaction is 1 atmosphere, the carbonization time is 6 hours, and then 110g of anhydrous hydrofluoric acid is slowly introduced into the carbonized basic magnesium carbonate suspension under rapid stirring, and the reaction is carried out for 1 hour. The reaction temperature is controlled to be 40-50 ° C. After the reaction is stopped, it is filtered and the filter cake is fully washed with pure water. The filtrate is recovered and used to prepare the basic magnesium carbonate suspension. After the filter cake is taken out, it is dried in an oven at 80 ° C for 7 hours and then transferred to a muffle furnace and calcined at 650 ° C for 5 hours to obtain a magnesium fluoride powder suitable for preparing hot-pressed polycrystalline magnesium fluoride.

[0003] In the prior art, when preparing hot-pressed polycrystalline magnesium fluoride powder, it is necessary to stir and mix the relevant solutions, introduce carbon dioxide, and then react. After the reaction stops, the solution is filtered and the filter cake is removed. However, when large-scale production of polycrystalline magnesium fluoride powder is carried out, the filter cake remains on the filter membrane of the filter, and the filter cake needs to be removed manually. The amount of filter cake is large and difficult to clean due to adhesion, making the operation inconvenient. Therefore, a hot-pressed polycrystalline magnesium fluoride powder preparation device is urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a hot-pressed polycrystalline magnesium fluoride powder preparation device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A hot-pressed polycrystalline magnesium fluoride powder preparation device comprises: a support table, a filter bin fixedly mounted on one side of the support table, a rectangular through-hole formed on one side of the filter bin, a filter plate movably sleeved inside the rectangular through-hole, a PLC controller fixedly mounted on one side of the support table, and a removal assembly for removing the magnesium fluoride filter cake, the removal assembly being arranged on both sides of the filter bin, the removal assembly comprising: a first fixed plate fixedly mounted on both sides of the filter bin.

[0007] As a further solution of the present invention, the taking-out component also includes: a first circular through hole is opened on one side of the first fixing plate, a driving mechanism is fixedly installed on one side of the first fixing plate, a driving motor of the driving mechanism is electrically connected to the PLC controller, a rotating frame is provided between the two first fixing plates, the rotating frame is movably connected to the first circular through hole, one end of the driving shaft of the driving motor of the driving mechanism is fixedly installed to the rotating frame, a limiting hole is opened on one side of the rotating frame, the limiting hole is movably connected to the filter plate, a movable frame is movably connected inside the limiting hole, a first threaded hole is opened on the top and bottom surfaces of the movable frame respectively, and the inner circular wall surface of the first threaded hole is threadedly connected with a threaded The top and bottom surfaces of the filter plate are respectively provided with limiting grooves, and the limiting grooves are movably sleeved with the threaded column. The bottom surface of the rotating frame is provided with two arc grooves, and the inner circular wall surface of the arc groove is fixedly installed with a driving motor, and the driving motor is electrically connected to the PLC controller. A threaded rod is fixedly installed on one end of the driving shaft of the driving motor, and a third threaded hole is provided on one side of the movable frame, and the third threaded hole is threadedly connected to the threaded rod. A vibration motor is fixedly installed on the bottom surface of the rotating frame, and the vibration motor is electrically connected to the PLC controller. A support bin is fixedly installed on one side of the filter bin, and a second rectangular through hole is provided on one side of the support bin, and a holding bin is movably sleeved inside the second rectangular through hole.

[0008] As a further solution of the present invention, two second circular through holes are opened on one side of the rotating frame, and an electromagnet is fixedly sleeved on the inner circular wall of the second circular through hole. Two metal plates are fixedly installed on one side of the filter bin, and the electromagnet is electrically connected to the PLC controller.

[0009] As a further solution of the present invention, a second fixing plate is fixedly installed on the bottom surface of the rotating frame, and a third circular through hole is opened on one side of the second fixing plate, and the third circular hole is movably connected to the threaded rod.

[0010] As a further solution of the present invention, a stirring chamber is provided on the top surface of the support platform, a first solenoid valve is fixedly connected to the inner circular wall of the water outlet of the stirring chamber, a connecting pipe is fixedly connected to the inner circular wall of the first solenoid valve, a fourth circular through hole is opened on the top surface of the filter chamber, and the inner circular wall of the fourth circular through hole is fixedly connected to the connecting pipe.

[0011] As a further solution of the present invention, a carbon dioxide gas tank is provided on the top surface of the support platform, the inner circular wall of the gas outlet of the carbon dioxide gas tank is fixedly connected to the air inlet pipe, and the air inlet pipe is fixedly connected to the air inlet of the outer circular wall of the mixing chamber.

[0012] As a further solution of the present invention, an air pump is fixedly installed on the inner top surface of the support platform, the air pump is electrically connected to the PLC controller, the inner circular wall surface of the air inlet of the air pump is fixedly sleeved with a fixed pipe, and the bottom surface of the filter bin is provided with a drainage hole, and the drainage hole is fixedly sleeved with the fixed pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By cooperating with each other, the support platform, filter bin, filter plate, first fixed plate, drive mechanism, rotating frame and limiting hole can achieve the effect of removing the filter cake inside the filter bin, so that there is no need for the user to manually remove the filter plate and scrape and clean the filter cake. Under the action of the vibration motor and gravity, the filter cake is vibrated and falls into the holding bin, which is cleaned more cleanly, is convenient for the user, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a hot-pressed polycrystalline magnesium fluoride powder preparation device proposed in the present invention;

[0016] Figure 2 This is a schematic diagram of the support structure of a hot-pressed polycrystalline magnesium fluoride powder preparation device proposed in the present invention;

[0017] Figure 3 for Figure 2 Schematic diagram of the local structure of A;

[0018] Figure 4 This is a schematic diagram of the drainage hole structure of a hot-pressed polycrystalline magnesium fluoride powder preparation device proposed in the utility model.

[0019] In the figure: 1. Support platform; 2. Filter chamber; 3. Filter plate; 4. First fixed plate; 5. Drive mechanism; 6. Rotating frame; 7. Limiting hole; 8. Moving frame; 9. First threaded hole; 10. Threaded column; 11. Limiting groove; 12. Drive motor; 13. Threaded rod; 14. Vibration motor; 15. Support chamber; 16. Holding chamber; 17. Electromagnet; 18. Metal plate; 19. Third threaded hole; 20. Second fixed plate; 21. Stirring chamber; 22. Connecting pipe; 23. Carbon dioxide tank; 24. Air inlet pipe; 25. Vacuum pump; 26. Fixed pipe; 27. Drain hole. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figure 1-Figure 4, a hot-pressed polycrystalline magnesium fluoride powder preparation device comprises a support platform 1, a filter bin 2 is fixedly installed on one side of the support platform 1, a rectangular through-hole is opened on one side of the filter bin 2, a filter plate 3 is movably sleeved inside the rectangular through-hole, a PLC controller is fixedly installed on one side of the support platform 1, and also comprises a removal component for taking out the magnesium fluoride filter cake, the removal component is arranged on both sides of the filter bin 2, the removal component comprises: a first fixed plate 4, the first fixed plate 4 is fixedly installed on both sides of the filter bin 2, a first circular through-hole is opened on one side of the first fixed plate 4, a driving mechanism 5 is fixedly installed on one side of the first fixed plate 4, the driving mechanism 5 comprises a driving motor and a first mounting plate for fixing it, the driving motor of the driving mechanism 5 is electrically connected to the PLC controller, a rotating frame 6 is provided between the two first fixed plates 4, the rotating frame 6 is movably sleeved with the first circular through-hole, one end of the driving shaft of the driving motor of the driving mechanism 5 is fixedly installed with the rotating frame 6, and a limited position is opened on one side of the rotating frame 6 The filter plate 3 is provided with a first threaded hole 9 on the top and bottom surfaces thereof, and a threaded column 10 is threadedly connected to the inner wall of the first threaded hole 9. The filter plate 3 is provided with a limiting groove 11 on the top and bottom surfaces thereof, and the limiting groove 11 is movably connected to the threaded column 10. The bottom surface of the rotating frame 6 is provided with two arc grooves, and a driving motor 12 is fixedly installed on the inner wall of the arc groove. The driving motor 12 is electrically connected to the PLC controller. A threaded rod 13 is fixedly installed on one end of the driving shaft of the driving motor 12. A third threaded hole 19 is provided on one side of the movable frame 8, and the third threaded hole 19 is threadedly connected to the threaded rod 13. A vibration motor 14 is fixedly installed on the bottom surface of the rotating frame 6, and the vibration motor 14 is electrically connected to the PLC controller. A support bin 15 is fixedly installed on one side of the filter bin 2, and a second rectangular through hole is provided on one side of the support bin 15. A holding bin 16 is movably connected to the inner surface of the second rectangular through hole.

[0024] In this embodiment, one side of the rotating frame 6 is provided with two second circular through holes, the inner circular wall surface of the second circular through hole is fixedly sleeved with an electromagnet 17, one side of the filter bin 2 is fixedly installed with two metal plates 18, the electromagnet 17 is electrically connected to the PLC controller, the bottom surface of the rotating frame 6 is fixedly installed with a second fixed plate 20, one side of the second fixed plate 20 is provided with a third circular through hole, the third circular hole is movably sleeved with the threaded rod 13, the top surface of the support platform 1 is provided with a stirring bin 21, the inner circular wall surface of the water outlet of the stirring bin 21 is fixedly sleeved with a first solenoid valve, the inner circular wall surface of the first solenoid valve is fixedly sleeved with a connecting pipe 22, through A fourth circular through hole is provided on the top surface of the filter bin 2, and the inner circular wall of the fourth circular through hole is fixedly connected to the connecting pipe 22. A carbon dioxide gas tank 23 is provided on the top surface of the support platform 1, and the inner circular wall of the air outlet of the carbon dioxide gas tank 23 is fixedly connected to the air inlet pipe 24, and the air inlet pipe 24 is fixedly connected to the air inlet of the outer circular wall of the mixing bin 21. An air pump 25 is fixedly installed on the inner top surface of the support platform 1, and the air pump 25 is electrically connected to the PLC controller. The inner circular wall of the air inlet of the air pump 25 is fixedly connected to the fixed pipe 26. A drainage hole 27 is provided on the bottom surface of the filter bin 2, and the drainage hole 27 is fixedly connected to the fixed pipe 26.

[0025] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: through the support platform 1, when the user needs to produce hot-pressed polycrystalline magnesium fluoride, it is necessary to filter the mixed raw materials to obtain filter cakes. At this time, the user starts the electromagnetic valve at the bottom of the stirring chamber 21 to allow the mixed liquid to enter the interior of the connecting pipe 22. At the same time, through the provided vacuum pump 25, the user starts the vacuum pump 25 to suck air into the interior of the fixed pipe 26, so that the interior of the filter chamber 2 maintains a negative pressure. Therefore, after the flowing mixed liquid enters the interior of the filter chamber 2, it passes through the provided filter plate 3. Filtration is performed, and the filtered mother liquid is discharged through the fixed pipe 26 and the air pump 25. The user can use the pipe to connect the water outlet of the air pump 25 to process the mother liquid. Then, after the filtration is completed, the electromagnet 17 is turned off so that the metal plate 18 is no longer magnetically attracted, thereby releasing the fixation of the filter plate 3. After that, the drive motor 12 is started to drive the threaded rod 13 to rotate, so that the threaded rod 13 and the third threaded hole 19 convert the rotational motion into a linear motion, so that the movable frame 8 moves inside the limiting hole 7, driving the threaded column 10 and the filter plate 3 to move, and then the filter plate 3 is removed from the filter. The interior of the filter bin 2 is pulled out. After it is completely pulled out, the driving mechanism 5 is started to drive the rotating frame 6 to rotate, so that the filter plate 3 is turned over and faces downward, so that the filter cake on the top of the filter plate 3 falls into the interior of the holding bin 16 by itself. At the same time, the vibration motor 14 is started to vibrate the rotating frame 6 and the filter plate 3, so that the filter residue adhering to the bottom of the filter plate 3 is completely separated. Then, the vibration motor 14 is turned off and the driving mechanism 5 is started to rotate the rotating frame 6 to drive the filter plate 3 to reset. The driving motor 12 is started to drive the threaded rod 13 to rotate so that the filter plate 3 is pushed into the interior of the filter bin 2, and the electromagnet 17 is started to magnetically attract the metal plate 18 to the filter plate 3. After being fixed, the holding bin 16 is manually pulled out from the supporting bin 15, and then the filter cake inside the holding bin 16 can be dried in an oven at 100°C for 5 hours, and then transferred to a muffle furnace to roast the supporting bin at 700°C for 15 hours to obtain magnesium fluoride powder suitable for preparing hot-pressed polycrystalline magnesium fluoride, thereby comprehensively achieving the effect of removing the filter cake inside the filter bin 2, so that there is no need for the user to manually remove the filter plate 3 and scrape and clean the filter cake. Under the action of the vibration motor 14 and gravity, the filter cake is vibrated and falls into the holding bin 16, which is cleaned more cleanly, is convenient for the user, and is more practical.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A hot-pressed polycrystalline magnesium fluoride powder preparation device, comprising a support platform (1), a filter chamber (2) fixedly mounted on one side of the support platform (1), a rectangular through hole opened on one side of the filter chamber (2), a filter plate (3) movably sleeved inside the rectangular through hole, and a PLC controller fixedly mounted on one side of the support platform (1), characterized in that: It comprises a removal assembly for removing the magnesium fluoride filter cake, the removal assembly being arranged on both sides of the filter bin (2), and the removal assembly comprising: a first fixing plate (4), the first fixing plate (4) being fixedly mounted on both sides of the filter bin (2).

2. The hot-pressed polycrystalline magnesium fluoride powder preparation device according to claim 1, characterized in that: The removal component further comprises: a first circular through hole is provided on one side of the first fixing plate (4); a driving mechanism (5) is fixedly installed on one side of the first fixing plate (4); a driving motor of the driving mechanism (5) is electrically connected to the PLC controller; a rotating frame (6) is provided between the two first fixing plates (4); the rotating frame (6) is movably sleeved with the first circular through hole; one end of the driving shaft of the driving motor of the driving mechanism (5) is fixedly installed with the rotating frame (6); a limiting hole (7) is provided on one side of the rotating frame (6); the limiting hole (7) is movably sleeved with the filter plate (3); a movable frame (8) is movably sleeved inside the limiting hole (7); a first threaded hole (9) is provided on the top and bottom surfaces of the movable frame (8), respectively; a threaded column (10) is threadedly connected to the inner wall surface of the first threaded hole (9); the top and bottom surfaces of the filter plate (3) are respectively A limiting groove (11) is separately provided, and the limiting groove (11) is movably sleeved with the threaded column (10). The bottom surface of the rotating frame (6) is provided with two arc grooves, and the inner circular wall surface of the arc groove is fixedly installed with a driving motor (12), and the driving motor (12) is electrically connected to the PLC controller. One end of the driving shaft of the driving motor (12) is fixedly installed with a threaded rod (13). A third threaded hole (19) is provided on one side of the movable frame (8), and the third threaded hole (19) is threadedly connected to the threaded rod (13). A vibration motor (14) is fixedly installed on the bottom surface of the rotating frame (6), and the vibration motor (14) is electrically connected to the PLC controller. A support bin (15) is fixedly installed on one side of the filter bin (2), and a second rectangular through hole is provided on one side of the support bin (15), and a storage bin (16) is movably sleeved inside the second rectangular through hole.

3. The hot-pressed polycrystalline magnesium fluoride powder preparation device according to claim 2, characterized in that: Two second circular through holes are provided on one side of the rotating frame (6), and an electromagnet (17) is fixedly sleeved on the inner wall of the second circular through hole. Two metal plates (18) are fixedly installed on one side of the filter chamber (2), and the electromagnet (17) is electrically connected to the PLC controller.

4. The hot-pressed polycrystalline magnesium fluoride powder preparation device according to claim 3, characterized in that: A second fixing plate (20) is fixedly mounted on the bottom surface of the rotating frame (6), and a third circular through hole is opened on one side of the second fixing plate (20), and the third circular through hole is movably sleeved with the threaded rod (13).

5. The hot-pressed polycrystalline magnesium fluoride powder preparation device according to claim 1, characterized in that: The top surface of the support platform (1) is provided with a stirring chamber (21), the inner circular wall surface of the water outlet of the stirring chamber (21) is fixedly sleeved with a first electromagnetic valve, the inner circular wall surface of the first electromagnetic valve is fixedly sleeved with a connecting pipe (22), and the top surface of the filter chamber (2) is provided with a fourth circular through hole, the inner circular wall surface of the fourth circular through hole is fixedly sleeved with the connecting pipe (22).

6. The hot-pressed polycrystalline magnesium fluoride powder preparation device according to claim 5, characterized in that: A carbon dioxide gas tank (23) is provided on the top surface of the support platform (1); the inner circular wall surface of the gas outlet of the carbon dioxide gas tank (23) is fixedly sleeved with an air inlet pipe (24); and the air inlet pipe (24) is fixedly sleeved with the gas inlet of the outer circular wall surface of the stirring chamber (21).

7. The device for preparing hot-pressed polycrystalline magnesium fluoride powder according to claim 1, characterized in that: An air pump (25) is fixedly installed on the inner top surface of the support platform (1), and the air pump (25) is electrically connected to the PLC controller. A fixed pipe (26) is fixedly sleeved on the inner circular wall surface of the air inlet of the air pump (25). A drainage hole (27) is opened on the bottom surface of the filter chamber (2), and the drainage hole (27) is fixedly sleeved on the fixed pipe (26).

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