Extraction device for reducing sodium ion content in tungsten and molybdenum oil phase using ammonia water

Abstract

The present invention discloses an extraction device for reducing the sodium ion content in tungsten-molybdenum oil phase by using ammonia water, and relates to the technical field of tungsten-molybdenum smelting, which comprises a second box, an extraction box, an air inlet pipe, an air delivery pipe and a liquid delivery pipe, wherein a coiled tube is arranged inside the second box, and both ends of the coiled tube extend out of the second box, the air inlet pipe is connected with the inner upper end of the second box, one end of the air delivery pipe is connected with the inner upper end of the second box, and the other end of the air delivery pipe extends into the bottom of the extraction box. Beneficial effect: Ammonia water is used to replace pure water to extract the sodium ions in the tungsten-molybdenum oil phase, and the ammonia water is prepared by the concentration and evaporation of the ammonium molybdate solution from other production lines within the enterprise, and the by-products of the concentration and evaporation of the ammonium molybdate solution can be well utilized, and there is no need to prepare pure water, which reduces the cost, and the ammonia water generated by the concentration and evaporation of the ammonium molybdate solution has a higher temperature than pure water, which can promote the phase separation of the tungsten-molybdenum oil phase and improve the extraction effect of the sodium ions.

Description

Technical Field

[0001] The invention relates to the technical field of tungsten and molybdenum smelting, and in particular to an extraction device for reducing the sodium ion content in a tungsten and molybdenum oil phase by using ammonia water. Background Art

[0002] In the tungsten-molybdenum smelting process, since the metal solution produced during the pressure cooking process is a sodium system, and the sodium content in the subsequent process has an impact on the product extraction, it is necessary to extract the sodium ions in the tungsten-molybdenum oil phase before extracting tungsten and molybdenum.

[0003] At present, the industry generally uses pure water to extract sodium ions from tungsten and molybdenum oil phases. The problem with this method is that the cost is relatively high regardless of whether you purchase water-making equipment to make pure water yourself or go to a water station to buy finished pure water. Summary of the invention

[0004] The main purpose of the present invention is to provide an extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase by using ammonia water, aiming to solve the problem of high cost of extracting sodium ions in the tungsten-molybdenum oil phase by using pure water.

[0005] In order to solve the above problems, the present invention proposes an extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase with ammonia water, comprising a second box body, an extraction box, an air inlet pipe, an air delivery pipe and a liquid delivery pipe, wherein a coiled tube is arranged in the second box body, and both ends of the coiled tube extend out of the second box body, the air inlet pipe is connected with the upper end of the interior of the second box body, one end of the air delivery pipe is connected with the upper end of the interior of the second box body, and the other end of the air delivery pipe extends into the bottom of the extraction box, a control valve 2 is arranged on the air delivery pipe, one end of the liquid delivery pipe is connected with the lower end of the interior of the second box body, and the other end of the liquid delivery pipe is connected with the air delivery pipe, and a control valve 3 is arranged on the liquid delivery pipe, and the ammonia water in the liquid delivery pipe flows into the air delivery pipe, and enters the extraction box together with the ammonia gas and water vapor in the air delivery pipe;

[0006] The bottom of the extraction box is connected to a drain pipe, a control valve is installed on the drain pipe, the extraction box is connected to a suction pipe, one end of the suction pipe is connected to a suction pump, and the other end of the suction pipe extends from top to bottom to the bottom of the extraction box.

[0007] In one embodiment, it also includes a box body and a box cover 1 that is detachably and sealedly fixedly mounted on the upper end of the box body. The extraction box is located in the box body 1, the upper end of the extraction box is open, the box opening of the extraction box is connected to the box cover 1 through a flexible sealing cover tube, and the upper and lower ends of the flexible sealing cover tube are respectively sealed and fixedly connected to the inner wall of the extraction box and the lower surface of the box cover 1;

[0008] The lower surface of the box cover 1 is provided with a vertical cylinder that rotates around its own vertical axis, and a cross bar is fixedly installed at the lower end of the vertical cylinder, and the cross bar is located in the extraction box. A stirring tube and a column are arranged on the cross bar, and the upper end of the stirring tube is movably connected to the cross bar, and the stirring tube is connected to the gas pipe through a connecting hard pipe, and the connecting hard pipe seals and penetrates the box cover 1 and the vertical cylinder;

[0009] The lower end of the column is fixedly connected to the cross bar, and a permanent magnet 1 is fixedly installed on the upper end of the column. The permanent magnet 1 is located on the inner side of the flexible sealing cover tube. The upper surface of the box cover 1 is provided with a permanent magnet 2, and the permanent magnet 2 is close to the permanent magnet 1. The permanent magnet 2 is connected to the motor transmission, and the permanent magnet 2 is driven by the motor to rotate around the column. The movement of the permanent magnet 2 attracts the permanent magnet 1 to move synchronously.

[0010] In one embodiment, a mounting ring 1 is fixedly mounted on the upper end of the column, the mounting ring 1 is coaxial with the column, the permanent magnet 1 is fixedly mounted on the upper surface of the mounting ring 1, and sealing rings are sealed on the inner circumferential surface and the outer circumferential surface of the mounting ring 1, and the upper end of the sealing ring is crimped and sealed to the lower surface of the box cover 1.

[0011] In one embodiment, the lower surface of the box cover 1 is provided with an annular groove coaxial with the mounting ring, and the permanent magnet 1 is located in the annular groove and slides in the annular groove under the attraction of the permanent magnet 2;

[0012] A magnetic shielding box is fixedly mounted on the mounting ring. The upper end of the magnetic shielding box is open, and the permanent magnet is located inside the magnetic shielding box.

[0013] In one embodiment, a thrust bearing coaxial with the mounting ring is fixedly mounted on the upper surface of the box cover one, a mounting ring two is coaxially fixedly mounted on the thrust bearing, a gear ring is coaxially fixedly mounted on the mounting ring two, the permanent magnet two is fixedly mounted on the lower surface of the mounting ring two, a driving wheel meshing with the gear ring is mounted on the output shaft of the motor, and the motor is fixedly mounted on the upper surface of the box cover one.

[0014] In one embodiment, a slider is slidably mounted on the crossbar, the upper end of the stirring tube is movably connected to the slider, and the upper end of the stirring tube is connected to the connecting hard tube through a connecting hose;

[0015] A mounting seat 1 is fixedly mounted on the cross bar, a spring is mounted on the mounting seat 1, one end of the spring is connected to a slider, and the slider slides on the cross bar to change the deformation of the spring and the distance from the slider to the inner wall of the extraction box;

[0016] The outer wall of the extraction box is arranged in a circular array and fixedly installed with multiple electromagnets, and two adjacent electromagnets are arranged at intervals. When the suction force of the electromagnet increases, the slider is attracted to slide on the cross bar close to the inner wall of the extraction box and stretch the spring. When the suction force of the electromagnet decreases, the spring pulls the slider to slide on the cross bar away from the inner wall of the extraction box.

[0017] In one embodiment, a plurality of electromagnet outer fixed sleeves are provided with a slide cylinder, and the slide cylinder is connected to the inner wall of the box body 1 in an up and down sliding manner. A displacement sensor is provided on the slide cylinder for detecting the position of the slide cylinder on the inner wall of the box body 1.

[0018] In one embodiment, a lifting device is installed in the box body 1, and the lifting device is connected to the extraction box. The extraction box is driven to rise and fall in the box body 1 through the lifting device.

[0019] Beneficial effects: 1. The technical solution of the present application uses ammonia water instead of pure water to extract sodium ions in the tungsten-molybdenum oil phase. The ammonia water is prepared by concentrating and evaporating the ammonium molybdate solution from other production lines within the enterprise. The by-products of the concentrated evaporation of the ammonium molybdate solution can be well utilized, and there is no need to prepare pure water, which reduces the cost. Moreover, the temperature of the ammonia water generated by the concentrated evaporation of the ammonium molybdate solution is higher than that of pure water, which can promote the phase separation of the tungsten-molybdenum oil phase and improve the extraction effect of the sodium ions.

[0020] 2. The extraction device of the present application injects ammonia water, ammonia gas and water vapor into the tungsten-molybdenum oil phase through a stirring tube, and uses ammonia gas and water vapor to form rising bubbles in the tungsten-molybdenum oil phase to disturb the tungsten-molybdenum oil phase and ammonia water, thereby promoting the extraction efficiency and extraction effect of sodium ions. Furthermore, by driving the stirring tube to stir the tungsten-molybdenum oil phase and ammonia water, the extraction efficiency and extraction effect of sodium ions are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic structural diagram of an extraction device for reducing the sodium ion content in a tungsten-molybdenum oil phase by using ammonia water according to the present invention;

[0023] Figure 2 It is an internal structure diagram of an extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase by using ammonia water according to the present invention;

[0024] Figure 3 yes Figure 2 A magnified view of part A in FIG.

[0025] Figure 4 yes Figure 2 A magnified view of part B in FIG.

[0026] Figure 5 yes Figure 2 The enlarged view of the C part in FIG.

[0027] Figure 6 Is a top view of the extraction box of the present invention;

[0028] Figure 7 It is a connection diagram of the cross bar and the mounting ring of the present invention.

[0029] The following are the descriptions of the reference numerals:

[0030] 1. Box body 1; 2. Box cover 1; 3. Lifting device; 4. Extraction box; 5. Electromagnet; 6. Slide; 7. Displacement sensor; 8. Liquid extraction tube; 9. Liquid extraction pump; 10. Liquid discharge tube; 11. Control valve 1; 12. Vertical cylinder; 13. Rotating seat; 14. Crossbar; 15. Mounting seat 1; 16. Spring; 17. Slide; 18. Sliding block; 19. Stirring tube; 20. Connecting hose; 21. Connecting hard tube; 22. Column; 23. Mounting ring 1; 24. Permanent magnet 1; 25. Magnetic shielding box 1; 26. Sealing ring 1; 27. Sealing ring 2; 28. Annular groove; 29. ​​Thrust bearing; 30. Mounting ring 2; 31. Permanent magnet 2; 32. Magnetic shielding box 2; 33. Gear ring; 34. Driving wheel; 35. Motor; 36. Machine cover; 37. Flexible sealing cover cylinder; 38. Air pipe; 39. Control valve 2; 40. Liquid pipe; 41. Control valve 3; 42. Mounting seat 2; 43. Box 2; 44. Coil; 45. Water inlet pipe; 46. Water outlet pipe; 47. Air inlet pipe; 48. Box cover 2; 49. Controller; 50. Rotation trajectory. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] The company where the inventor works originally has an ammonium molybdate solution concentration and evaporation production line. A large amount of ammonia and water vapor will be generated during the concentration and evaporation of the ammonium molybdate solution. These ammonia and water vapor are originally required to enter the wastewater evaporation system for treatment. After research, the inventor found that if the ammonia and water vapor can be liquefied to replace pure water to extract the sodium ions in the tungsten-molybdenum oil phase, it can not only reduce the cost of pure water preparation, but also promote the phase separation of the tungsten-molybdenum oil phase and improve the extraction effect. Based on this, the inventor designed the present technical solution.

[0036] The present invention proposes an extraction device for reducing the sodium ion content in a tungsten-molybdenum oil phase by using ammonia water. The extraction device for reducing the sodium ion content in a tungsten-molybdenum oil phase by using ammonia water instead of pure water extracts the sodium ions in the tungsten-molybdenum oil phase. The ammonia water is prepared by concentrating and evaporating an ammonium molybdate solution from other production lines within the enterprise. The by-products of the concentrated evaporation of the ammonium molybdate solution can be well utilized, and there is no need to prepare pure water, thereby reducing the cost. Moreover, the temperature of the ammonia water generated by the concentrated evaporation of the ammonium molybdate solution is higher than that of pure water, which can promote the phase separation of the tungsten-molybdenum oil phase and improve the extraction effect of the sodium ions.

[0037] In addition, the extraction device of the present invention for reducing the sodium ion content in the tungsten-molybdenum oil phase with ammonia water injects ammonia water, ammonia gas and water vapor into the tungsten-molybdenum oil phase through the stirring tube 19, and uses the ammonia gas and water vapor to form rising bubbles in the tungsten-molybdenum oil phase to disturb the tungsten-molybdenum oil phase and ammonia water, thereby promoting the improvement of the extraction efficiency and extraction effect of the sodium ions. Furthermore, by driving the stirring tube 19 to stir the tungsten-molybdenum oil phase and ammonia water, the extraction efficiency and extraction effect of the sodium ions are further improved.

[0038] Specifically, in one embodiment of the invention, Figure 1 and Figure 2 As shown, the extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase with ammonia water at least includes a second box body 43, an extraction box 4, an air inlet pipe 47, an air delivery pipe 38 and a liquid delivery pipe 40. The upper end of the second box body 43 is sealed with a second box cover 48. A coiled tube 44 is arranged in the second box body 43. Both ends of the coiled tube 44 extend out of the second box body 43 and are respectively connected to an inlet pipe 45 and an outlet pipe 46. External cooling water enters the coiled tube 44 through the inlet pipe 45 to cool the ammonia and water vapor in the second box body 43 to liquefy them, and the cooling water flows out from the outlet pipe 46.

[0039] In this embodiment, if Figure 1 and Figure 2 As shown, the air inlet pipe 47 is connected to the upper end of the interior of the second box 43. The ammonia gas and water vapor generated by the concentration and evaporation of the ammonium molybdate solution enter the second box 43 through the air inlet pipe 47, and then are cooled and liquefied to form ammonia water under the action of the coil 44, and the ammonia water gathers at the bottom of the second box 43.

[0040] In this embodiment, if Figure 1 and Figure 2As shown, one end of the gas pipe 38 is connected to the upper end of the second box body 43, and the other end of the gas pipe 38 extends into the bottom of the extraction box 4. The gas pipe 38 is provided with a control valve 2 39. One end of the liquid pipe 40 is connected to the lower end of the second box body 43, and the other end of the liquid pipe 40 is connected to the gas pipe 38. The liquid pipe 40 is provided with a control valve 3 41. When the control valves 2 39 and 3 41 are opened, the ammonia gas and water vapor in the second box body 43 enter the extraction box 4 through the gas pipe 38, and the ammonia water in the second box body 43 flows into the gas pipe 38 through the liquid pipe 40, and is discharged along with the gas in the gas pipe 38. Ammonia and water vapor enter the extraction box 4 together and mix with the tungsten-molybdenum oil phase to extract the sodium ions in the tungsten-molybdenum oil phase. After a period of time, the control valve three 41 is closed, and ammonia and water vapor are continuously injected into the extraction box 4 through the gas pipe 38. The rising bubbles formed by ammonia and water vapor in the tungsten-molybdenum oil phase are used to disturb the tungsten-molybdenum oil phase and ammonia water, thereby promoting the extraction efficiency and effect of sodium ions. After a period of time, the extraction is completed, and the control valve two 39 is closed to wait for the liquid phase and the water phase in the extraction box 4 to stand and separate, and then the oil phase and the water phase in the extraction box 4 are discharged, and the new tungsten-molybdenum oil phase to be extracted with sodium ions is refilled into the extraction box 4.

[0041] In this embodiment, ammonia gas and water vapor continuously enter the second box body 43 through the air inlet pipe 47 to be liquefied into ammonia water. When the second control valve 39 is opened, the ammonia gas and water vapor enter the air delivery pipe 38.

[0042] In this embodiment, if Figure 2 As shown, the bottom of the extraction box 4 is connected to a drain pipe 10, and a control valve 11 is installed on the drain pipe 10. After the oil phase and the water phase in the extraction box 4 are allowed to stand and separate, the lower water phase is discharged from the drain pipe 10. The extraction box 4 is connected to a suction pipe 8, one end of which is connected to a suction pump 9, and the other end of the suction pipe 8 extends from top to bottom to the bottom of the extraction box 4. After the suction pump 9 is started, the upper oil phase is discharged from the suction pipe 8.

[0043] It can be seen that the extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase with ammonia water in this embodiment uses ammonia water instead of pure water to extract the sodium ions in the tungsten-molybdenum oil phase. The ammonia water is prepared by concentrating and evaporating the ammonium molybdate solution from other production lines within the enterprise. The by-products of the concentrated evaporation of the ammonium molybdate solution can be well utilized, and there is no need to prepare pure water, which reduces the cost. Moreover, the temperature of the ammonia water generated by the concentrated evaporation of the ammonium molybdate solution is higher than that of pure water, which can promote the phase separation of the tungsten-molybdenum oil phase and improve the extraction effect of the sodium ions.

[0044] Furthermore, in this embodiment, if Figure 1 and Figure 2As shown, the extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase with ammonia water also includes a box body 1 and a box cover 2 that is detachably sealed and fixedly installed on the upper end of the box body 1. The box body 1 and the box cover 2 are sealed and connected to prevent external dust and other debris from entering the box body 1 and affecting the smooth progress of the extraction operation.

[0045] In this embodiment, if Figure 2 As shown, the extraction box 4 is located in the box body 1, and the upper end of the extraction box 4 is open. The purpose of the open design of the extraction box 4 is to facilitate the cross bar 14, the column 22, and the stirring tube 19 to extend into the extraction box 4 and rotate in the extraction box 4. The box opening of the extraction box 4 is connected to the box cover 2 through a flexible sealing cover tube 37. Specifically, as shown in FIG. Figure 2 and Figure 3 As shown, the upper and lower ends of the flexible sealing cover tube 37 are respectively sealed and fixedly connected to the inner wall of the extraction box 4 and the lower surface of the box cover 2. With this design, the extraction box 4 can be sealed by the flexible sealing cover tube 37 and the box cover 2 to prevent the ammonia and water vapor escaping from the tungsten-molybdenum oil phase from leaking out and affecting the safety of certain parts in the extraction device and polluting the environment. Because it is well known that ammonia is corrosive to certain materials, such as natural rubber, PVC, polypropylene, polyester and other plastics, and iron, copper, aluminum and other metals, it is necessary to avoid ammonia from contacting the above materials. Obviously, the electromagnet 5 and the wires connecting the electromagnet 5 are all parts that will be corroded by ammonia. Therefore, it is very necessary to set the flexible sealing cover tube 37 to cooperate with the box cover 2 to seal the extraction box 4. At the same time, the flexible sealing cover tube 37 is soft in texture and does not affect the lifting and lowering of the extraction box 4 in the box body 1.

[0046] In this embodiment, the box cover 2, the flexible sealing cover tube 37, and the extraction box 4 are all made of materials that will not be corroded by ammonia, such as PP, PE, POM, PTFE and other plastics. In addition, the sealing ring 26 and the sealing ring 27 can be made of corrosion-resistant rubber, such as chloroprene rubber, ethylene propylene rubber, and fluororubber. The performance of the above materials is common knowledge, so this article will not go into details.

[0047] In this embodiment, the box body 1 and the extraction box 4 are both made of transparent materials, so that it is convenient to observe with the naked eye whether the oil phase and the water phase in the extraction box 4 have been separated by static stratification, and to observe with the naked eye the liquid level in the extraction box 4 during the process of discharging the oil phase and the water phase in the extraction box 4 through the discharge pipe 10 and the suction pipe 8 respectively during extraction, so as to timely control the start and stop of the suction pump 9 and the opening and closing of the control valve 11.

[0048] In this embodiment, if Figure 2 As shown, the lower surface of the box cover 2 is provided with a vertical cylinder 12 which rotates around its own vertical axis. Figure 4 As shown, a rotating seat 13 is coaxially rotatably mounted on the upper end of the vertical cylinder 12, and the rotating seat 13 is fixedly connected to the box cover 2.

[0049] In this embodiment, if Figure 2 As shown, a cross bar 14 is fixedly installed at the lower end of the vertical cylinder 12, and the cross bar 14 is located in the extraction box 4. A stirring tube 19 and a column 22 are arranged on the cross bar 14. The upper end of the stirring tube 19 is movably connected to the cross bar 14. The stirring tube 19 is connected to the gas pipe 38 through a connecting hard pipe 21. The connecting hard pipe 21 seals and penetrates the box cover 2 and the vertical cylinder 12. The connecting hard pipe 21 seals and penetrates the box cover 2 and the vertical cylinder 12 to prevent ammonia from leaking out from the connecting hard pipe 21. Figure 4 As shown, the lower end of the connecting hard pipe 21 penetrates the box cover 2 and the vertical cylinder 12. The design that the upper end of the stirring tube 19 is movably connected to the cross bar 14 can prevent the vertical cylinder 12 from rotating and breaking the stirring tube 19.

[0050] The extraction device of this embodiment for reducing the sodium ion content in the tungsten-molybdenum oil phase with ammonia water injects ammonia water, ammonia gas and water vapor into the tungsten-molybdenum oil phase through the stirring tube 19, and uses the ammonia gas and water vapor to form rising bubbles in the tungsten-molybdenum oil phase to disturb the tungsten-molybdenum oil phase and ammonia water, thereby promoting the extraction efficiency and extraction effect of sodium ions.

[0051] In this embodiment, if Figure 2 As shown, the lower end of the column 22 is fixedly connected to the cross bar 14, and the upper end of the column 22 is fixedly mounted with a permanent magnet 24, which is located inside the flexible sealing cover 37. In order to protect the permanent magnet 24 from being corroded by ammonia water, Figure 2 and Figure 7 As shown, a mounting ring 23 is fixedly mounted on the upper end of the column 22, the mounting ring 23 is coaxial with the column 12, the permanent magnet 24 is fixedly mounted on the upper surface of the mounting ring 23, and a sealing ring 26 and a sealing ring 27 are respectively sealed on the inner circumferential surface and the outer circumferential surface of the mounting ring 23. Figure 2 and Figure 5 As shown, the upper ends of the sealing ring 1 26 and the sealing ring 27 are crimped and sealed to the lower surface of the box cover 1 2 , and the sealing rings are used to prevent ammonia from contacting the permanent magnet 1 24 , thereby protecting the permanent magnet 1 24 .

[0052] Furthermore, in order to reduce the magnetic influence of the permanent magnet 24 on the slider 18, as Figure 5 and Figure 7 As shown, a magnetic shielding box 25 is fixedly mounted on the mounting ring 23, the upper end of the magnetic shielding box 25 is open, and the permanent magnet 24 is located in the magnetic shielding box 25. This design does not affect the magnetic attraction between the permanent magnet 2 31 and the permanent magnet 24, and can also weaken the magnetic effect of the permanent magnet 24 on the slider 18; further, as Figure 2 and Figure 5As shown, the lower surface of the box cover 2 is provided with an annular groove 28 coaxial with the mounting ring 23, and the permanent magnet 24 is located in the annular groove 28 and slides in the annular groove 28 under the attraction of the permanent magnet 2 31. This design is conducive to lifting Figure 7 The stability of the self-rotation of the structure shown promotes the stirring tube 19 to stir the oil phase and the water phase in the extraction box 4 stably and reliably.

[0053] In this embodiment, if Figure 2 and Figure 5 As shown, the upper surface of the box cover 1 2 is provided with a permanent magnet 2 31, and the permanent magnet 2 31 is close to the permanent magnet 1 24. The permanent magnet 2 31 is connected to the motor 35 for transmission. The motor 35 drives the permanent magnet 2 31 to rotate around the vertical cylinder 12, and the permanent magnet 2 31 moves to attract the permanent magnet 1 24 to move synchronously. With this design, there is no need to set the motor 35 inside the flexible sealing cover 37, which avoids the motor 35 from being corroded by ammonia. At the same time, the transmission connection form in which the permanent magnet 2 31 drives the permanent magnet 1 24 to rotate by magnetic force can ensure the sealing effect of the extraction device, which is compared with the use of a transmission shaft running through the box cover 1 2 to drive the permanent magnet 24. Figure 7 The self-rotating transmission form of the structure shown can prevent the problem of ammonia leakage; in addition, after the annular groove 28 is provided, the distance between the permanent magnet 1 24 and the permanent magnet 2 31 is shortened, ensuring that the permanent magnet 2 31 can drive the permanent magnet 1 24 to rotate.

[0054] Specifically, Figure 5 and Figure 2 As shown, a thrust bearing 29 coaxial with the mounting ring 1 23 is fixedly mounted on the upper surface of the box cover 1 2, a mounting ring 2 30 is coaxially fixedly mounted on the thrust bearing 29, a gear ring 33 is coaxially fixedly mounted on the mounting ring 2 30, a permanent magnet 2 31 is fixedly mounted on the lower surface of the mounting ring 2 30, a magnetic shielding box 2 32 is provided on the outer sleeve of the permanent magnet 2 31 to reduce its influence on the motor 35, an output shaft of the motor 35 is installed with a driving wheel 34 meshing with the gear ring 33, and the motor 35 Fixedly mounted on the upper surface of the box cover 2, the thrust bearing 29, the mounting ring 2 30, the gear ring 33, and the outer cover of the motor 35 are provided with a machine cover 36. After the motor 35 is started, the gear ring 33 is driven to rotate by the driving wheel 34, and then the permanent magnet 2 31 is driven to rotate around the central axis of the mounting ring 2 30 to drive the permanent magnet 1 24 to rotate synchronously. The permanent magnet 1 24 drives the cross bar 14 to rotate synchronously around the vertical cylinder 12, so that the stirring tube 19 stirs the oil phase and the water phase in the extraction box 4, thereby improving the extraction efficiency and extraction effect of the sodium ions.

[0055] Further, such as Figure 2As shown, the cross bar 14 is provided with a slide groove 17, a slider 18 is slidably installed in the slide groove 17, the upper end of the stirring tube 19 is movably connected to the slider 18, and the upper end of the stirring tube 19 is connected to the connecting hard tube 21 through a connecting hose 20. This design can avoid affecting the sliding of the slider 18 along the slide groove 17; a mounting seat 15 is fixedly installed on the cross bar 14, a spring 16 is installed on the mounting seat 15, one end of the spring 16 is connected to the slider 18, and the slider 18 slides on the cross bar 14 to change the deformation of the spring 16 and change the distance from the slider 18 to the inner wall of the extraction box 4; as shown Figure 2 and Figure 6 As shown, the outer wall of the extraction box 4 is arranged in a circular array and fixedly installed with multiple electromagnets 5, and two adjacent electromagnets 5 are arranged at intervals. The suction force of the electromagnet 5 increases, and the slider 18 is attracted to slide on the cross bar 14 close to the inner wall of the extraction box 4, and the spring 16 is stretched. After the suction force of the electromagnet 5 decreases, the spring 16 pulls the slider 18 to slide on the cross bar 14 away from the inner wall of the extraction box 4. With this design, the stirring tube 19 rotates in a serpentine spiral in the extraction box 4 under the action of the spring 16 and the electromagnet 5, and the rotation trajectory 50 is shown in FIG. Figure 6 As shown, such a design is conducive to the stirring tube 19 to fully and evenly stir the oil phase and the water phase, promote the full extraction of sodium ions, further improve the extraction efficiency and extraction effect of sodium ions, and shorten the extraction time; specifically, when the current flowing through the electromagnet 5 remains unchanged, when the slider 18 moves between two adjacent electromagnets 5, the slider 18 is farther away from the electromagnet 5, and the slider 18 is subjected to less suction by the electromagnet 5. When the slider 18 moves to the position directly opposite the electromagnet 5, the slider 18 is closer to the electromagnet 5, and the corresponding suction is greater. Therefore, in the process of the motor 35 driving the stirring tube 19 to rotate around the vertical cylinder 12, as the distance from the slider 18 to the electromagnet 5 increases and decreases in a reciprocating cycle, the slider 18 drives the stirring tube 19 to swing forward and rotate in a serpentine manner, and then gradually reduces the current flowing through the electromagnet 5, the suction of the electromagnet 5 on the slider 18 is reduced, and the position of the slider 18 in the slide groove 17 is changed, so that the slider 18 rotates in a spiral line. The spiral rotation trajectory is shown as follows Figure 6 As shown in the dotted line, the helical rotation of the slider 18 and the serpentine forward swing together are Figure 6 The rotation track 50 shown in the extraction box 4, the stirring tube 19 stirs the oil phase and the water phase in the extraction box 4 along this rotation track 50 to quickly stir the oil phase and the water phase evenly, quickly complete the sodium ion extraction, further improve the extraction efficiency and extraction effect, and shorten the extraction time.

[0056] This embodiment uses the electromagnet 5 and the spring 16 to cooperate with each other to realize the sliding of the slider 18 in the slide groove 17. This design structure avoids the need to set a push-pull mechanism in the extraction box 4 inside the flexible sealing cover tube 37 to push the slider 18 to slide in the slide groove 17, thereby preventing the push-pull mechanism from being corroded by ammonia.

[0057] Further, such as Figure 2 As shown, a plurality of electromagnets 5 are fixedly sleeved with a slide 6, and the slide 6 is connected to the inner wall of the box body 1 by sliding up and down. This design facilitates the subsequent control of the smooth lifting and lowering of the extraction box 4. The slide 6 is provided with a displacement sensor 7 for detecting the position of the slide 6 on the inner wall of the box body 1. The detection information is transmitted to the controller 49, and the controller 49 controls the electromagnets 5 at the corresponding height positions on the outer wall of the extraction box 4 to be energized and work. Figure 2 It can be seen that the electromagnet 5 at the same height as the slider 18 is powered on to work in cooperation with the spring 16 to enable the slider 18 to slide along the slide groove 17, and the electromagnets 5 at other height positions are all powered off and do not work. When the height of the extraction box 4 changes, the controller 49 controls the electromagnet 5 at the same height as the slider 18 to be powered on according to the position information detected by the displacement sensor 7, so that the lower end of the stirring tube 19 can inject ammonia, water vapor and ammonia water into the oil phase at different height positions in the oil phase in the extraction box 4, further improving the uniformity of the mixing of the oil phase and the water phase, and further improving the sodium ion extraction efficiency. Figure 2 As shown, a lifting device 3 is installed in the box body 1, and the lifting device 3 is connected to the extraction box 4. The extraction box 4 is driven to rise and fall in the box body 1 through the lifting device 3, and the height position of the lower end of the stirring tube 19 in the oil phase in the extraction box 4 is adjusted, so that the stirring tube 19 injects ammonia gas, water vapor and ammonia water into the oil phase at different height positions, further improving the uniformity of stirring of the oil phase and the water phase, and further improving the sodium ion extraction efficiency.

[0058] In this embodiment, the vertical cylinder 12, the rotating seat 13, the cross bar 14, the mounting seat 15, the spring 16, the stirring tube 19, the connecting hose 20, the connecting hard tube 21, the column 22, the mounting ring 23, etc. are located on the inner side of the flexible sealing cover cylinder 37, and the parts that will come into contact with ammonia should be made of materials that will not be corroded by ammonia.

[0059] In this embodiment, the slider 18 is made of a material that can be attracted by the electromagnet 5. In order to prevent the slider from being corroded by ammonia water, the outer wall of the slider 18 should be treated with anti-corrosion protection.

[0060] In this embodiment, if Figure 1 As shown, the box body 2 43 is fixedly mounted above the box cover 1 2 through the mounting seat 2 .

[0061] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An extraction device for reducing the sodium ion content in the tungsten and molybdenum oil phase using aqueous ammonia, characterized in that: It comprises a second box body, an extraction box, an air inlet pipe, an air delivery pipe and a liquid delivery pipe. A coiled pipe is arranged inside the second box body, and both ends of the coiled pipe extend out of the second box body. The air inlet pipe is connected to the upper end of the interior of the second box body, one end of the air delivery pipe is connected to the upper end of the interior of the second box body, and the other end of the air delivery pipe extends into the bottom of the extraction box. A control valve 2 is arranged on the air delivery pipe, one end of the liquid delivery pipe is connected to the lower end of the interior of the second box body, and the other end of the liquid delivery pipe is connected to the air delivery pipe. A control valve 3 is arranged on the liquid delivery pipe, and the ammonia water in the liquid delivery pipe flows into the air delivery pipe and enters the extraction box together with the ammonia gas and water vapor in the air delivery pipe. The bottom of the extraction box is connected to a drain pipe, a control valve is installed on the drain pipe, the extraction box is connected to a suction pipe, one end of the suction pipe is connected to a suction pump, and the other end of the suction pipe extends from top to bottom to the bottom of the extraction box.

2. The extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase by using aqueous ammonia as claimed in claim 1, characterized in that: It also includes a box body and a box cover that is detachably and sealedly fixedly mounted on the upper end of the box body. The extraction box is located in the box body. The upper end of the extraction box is open. The box opening of the extraction box is connected to the box cover through a flexible sealing cover. The upper and lower ends of the flexible sealing cover are respectively and sealedly fixedly connected to the inner wall of the extraction box and the lower surface of the box cover. The lower surface of the box cover 1 is provided with a vertical cylinder that rotates around its own vertical axis, and a cross bar is fixedly installed at the lower end of the vertical cylinder, and the cross bar is located in the extraction box. A stirring tube and a column are arranged on the cross bar, and the upper end of the stirring tube is movably connected to the cross bar, and the stirring tube is connected to the gas pipe through a connecting hard pipe, and the connecting hard pipe seals and penetrates the box cover 1 and the vertical cylinder; The lower end of the column is fixedly connected to the cross bar, and a permanent magnet 1 is fixedly installed on the upper end of the column. The permanent magnet 1 is located on the inner side of the flexible sealing cover tube. The upper surface of the box cover 1 is provided with a permanent magnet 2, and the permanent magnet 2 is close to the permanent magnet 1. The permanent magnet 2 is connected to the motor transmission, and the permanent magnet 2 is driven by the motor to rotate around the column. The movement of the permanent magnet 2 attracts the permanent magnet 1 to move synchronously.

3. The extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase by using aqueous ammonia as claimed in claim 2, characterized in that: A mounting ring 1 is fixedly installed on the upper end of the column, and the mounting ring 1 is coaxial with the vertical cylinder. The permanent magnet 1 is fixedly installed on the upper surface of the mounting ring 1. Sealing rings are sealed on the inner circumferential surface and the outer circumferential surface of the mounting ring 1. The upper end of the sealing ring is crimped and sealed to the lower surface of the box cover 1.

4. The extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase by using aqueous ammonia as claimed in claim 3, characterized in that: The lower surface of the box cover 1 is provided with an annular groove coaxial with the mounting ring, and the permanent magnet 1 is located in the annular groove and slides in the annular groove under the attraction of the permanent magnet 2; A magnetic shielding box is fixedly mounted on the mounting ring. The upper end of the magnetic shielding box is open, and the permanent magnet is located inside the magnetic shielding box.

5. The extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase by using ammonia water as claimed in claim 2, characterized in that: A thrust bearing coaxial with the mounting ring is fixedly mounted on the upper surface of the box cover one, a mounting ring two is coaxially fixedly mounted on the thrust bearing, a gear ring is coaxially fixedly mounted on the mounting ring two, the permanent magnet two is fixedly mounted on the lower surface of the mounting ring two, a driving wheel meshing with the gear ring is mounted on the output shaft of the motor, and the motor is fixedly mounted on the upper surface of the box cover one.

6. The extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase by using aqueous ammonia as claimed in claim 2, characterized in that: A slider is slidably mounted on the crossbar, the upper end of the stirring tube is movably connected to the slider, and the upper end of the stirring tube is connected to the connecting hard tube through a connecting hose; A mounting seat 1 is fixedly mounted on the cross bar, a spring is mounted on the mounting seat 1, one end of the spring is connected to a slider, and the slider slides on the cross bar to change the deformation of the spring and the distance from the slider to the inner wall of the extraction box; The outer wall of the extraction box is arranged in a circular array and fixedly installed with multiple electromagnets, and two adjacent electromagnets are arranged at intervals. When the suction force of the electromagnet increases, the slider is attracted to slide on the cross bar close to the inner wall of the extraction box and stretch the spring. When the suction force of the electromagnet decreases, the spring pulls the slider to slide on the cross bar away from the inner wall of the extraction box.

7. The extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase by using aqueous ammonia as claimed in claim 6, characterized in that: A plurality of electromagnet outer fixed sleeves are provided with a slide cylinder, and the slide cylinder is connected to the inner wall of the box body one by sliding up and down. A displacement sensor is provided on the slide cylinder for detecting the position of the slide cylinder on the inner wall of the box body one.

8. The extraction device for reducing the sodium ion content in the tungsten-molybdenum oil phase by using aqueous ammonia as claimed in claim 7, characterized in that: A lifting device is installed in the box body one, and the lifting device is connected to the extraction box. The extraction box is driven to rise and fall in the box body one through the lifting device.

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