Preparation device of ammonium rhenate

Abstract

The invention discloses an ammonium rhenate preparation device which comprises a concentration kettle body, a reaction cavity, an interlayer, a rotating part and an outer feeding pipe, and further comprises a multi-position flow mixing structure, the reaction cavity is a round barrel, a plurality of guide ribs are arranged on the inner side of the round barrel, the multi-position flow mixing structure comprises a plurality of downward concave holes formed in the bottom of the interior of the round barrel, and the outer feeding pipe is arranged in the middle of the inner side of the round barrel. A lower concave hole is formed in the top of the circular barrel, a wrapping piece is installed in the lower concave hole and used for wrapping the interior of the circular barrel, a flow mixing frame is installed on the inner side of the guide rib in a sliding mode, the bottom of the flow mixing frame is attached to the wrapping piece, a plurality of upper concave holes are formed in the top of the circular barrel, and upper sealing pieces are installed in the upper concave holes; the outer punching structure comprises a lower hollow cylinder arranged at the lower end of the lower concave hole, and a pressurizing part is installed on the inner side of the lower hollow cylinder. The ammonium rhenate crystallization effect is better within the same time, and the purity of ammonium rhenate obtained after crystallization is higher.

Description

TECHNICAL FIELD

[0001] The application relates to an ammonium rhenate manufacturing device, in particular to an ammonium rhenate preparation device. BACKGROUND

[0002] Ammonium rhenate is the most important and common intermediate compound in the rhenium metallurgy process, is a basic raw material for producing high-purity metal rhenium and other rhenium products, is recovered and purified from secondary resources containing rhenium in the ammonium rhenium preparation process, and is obtained through the following steps: after rhenium-containing raw materials are leached, the raw material solution is extracted, the extracted solution is washed and then back-extracted, and the back-extracted solution is concentrated and dried, so that high-purity ammonium rhenate is obtained.

[0003] In the concentration stage, the ammonium rhenate solution is heated and concentrated to a set amount, and then the ammonium rhenate crystals are precipitated through the way of temperature reduction crystallization. The traditional equipment is provided with heating on the inner side of the concentration tank, and the effect of concentration is achieved through the way of steam heating through the interlayer. However, the central area is difficult to heat by the interlayer heating, so the existing concentration tank is provided with a middle stirring structure or a coil pipe in the middle part, so as to improve the concentration efficiency. However, the stirring structure needs to be arranged in the concentration tank, so the coil pipe is difficult to be arranged, the intersection of the liquid in the tank body is entirely dependent on the effect of the stirring structure itself, and since the crystallization is also carried out in the tank body, the too gentle intersection is not conducive to the crystallization of the ammonium rhenate, the purity of the ammonium rhenate produced by the crystallization does not meet the factory requirements, and the ammonium rhenate needs to be purified for many times.

[0004] Therefore, the application aims to provide an ammonium rhenate preparation device which can not only retain the original stirring effect, but also change the original structure of the cylinder, so that the steam can serve as the power of the turbulent flow of the concentration tank, the crystallization effect of the ammonium rhenate is better in the same time, and the purity of the ammonium rhenate obtained after crystallization is higher. SUMMARY

[0005] The application provides an ammonium rhenate preparation device which can effectively solve the above problems.

[0006] The application is implemented in the following manner: An ammonium rhenate preparation device comprises a concentration tank body, a reaction cavity is arranged on the inner side of the concentration tank body, a layer is arranged between the reaction cavity and the concentration tank body, a rotating member penetrating through the layer and the reaction cavity is arranged on the top of the concentration tank body, the reaction cavity is connected with an outer feeding pipe, a steam circulation pipe and a discharging pipe are connected with the reaction cavity, and the device further comprises: Multi-position mixed flow structure, the reaction cavity is a circular cylinder, the inner side of the circular cylinder is provided with a plurality of guide ribs, the multi-position mixed flow structure comprises a plurality of lower concave holes opened in the bottom of the inside of the circular cylinder, a wrapping piece is installed in the lower concave hole, the wrapping piece is used to hold the inside of the circular cylinder, the inner side of the guide rib is slidingly installed with a mixed flow frame, the bottom of the mixed flow frame is attached to the wrapping piece, when the wrapping piece is pushed up, the mixed flow frame moves up along the guide rib and drives the ammonium rhenate solution in the circular cylinder to shake, a plurality of upper concave holes are opened in the top of the circular cylinder, and an upper closing piece is installed in the upper concave hole. External push structure, comprising a lower empty cylinder arranged at the lower end of the lower concave hole, the inner side of the lower empty cylinder is provided with a pressure increasing piece, the pressure increasing piece periodically outputs to the direction of the wrapping piece, so that the wrapping piece is recessed to the inner side of the reaction cavity.

[0007] As a further improvement, the lower concave hole is provided with two inner installation strips near one side of the inside of the reaction cavity, the inner installation strip at the upper end is located at the lower end of the guide rib, the lower concave hole is provided with an outer installation strip away from one side of the inside of the reaction cavity, and the lower concave hole is recessed inward at the position corresponding to the cross section of the reaction cavity.

[0008] As a further improvement, the wrapping piece comprises an inner receiving piece connected between the two inner installation strips, an outer receiving piece connected between the two outer installation strips, and a middle fixing piece embedded in the installation groove, and the lengths of the inner receiving piece, the outer receiving piece and the middle fixing piece are all longer than the hole diameter of the lower concave hole.

[0009] As a further improvement, the mixed flow frame comprises a mixed flow ring surrounding the outer side of the rotating piece, the outer side of the mixed flow ring is provided with a plurality of guide pieces slidingly installed in the inner side of the guide rib, the lower end of the mixed flow ring is provided with a plurality of power assisting pieces, and the bottom of the power assisting piece is attached to the inner side of the wrapping piece.

[0010] As a further improvement, the mixed flow ring comprises an annular ring surrounding the outer side of the rotating piece, the top of the annular ring is provided with a plurality of flow breaking cones, and the inner side of the annular ring is provided with a plurality of cross flow cones.

[0011] As a further improvement, the power assisting piece comprises an extension arm connected to the lower end of the mixed flow ring, the bottom of the extension arm is provided with a contact plate, the bottom of the contact plate is outwardly provided with a plurality of friction particles, and the contact plate is attached to the inner side of the wrapping piece.

[0012] As a further improvement, the upper closing piece is an inwardly recessed sealing piece, and the length of the sealing piece is greater than the length of the upper concave hole.

[0013] As a further improvement, the reaction cavity is fixed in the concentration kettle body through an annular plate transversely arranged inside the concentration kettle body, one side of the bottom of the annular plate is provided with a steam inlet pipe, and the bottom of the right side of the concentration kettle body is provided with a steam outlet pipe.

[0014] As a further improvement, the booster comprises a mounting ring arranged inside the lower empty cylinder, the inner side of the mounting ring is provided with a booster oil cylinder, and the output end of the booster oil cylinder is attached to the outer side of the wrapping piece through an arc surface.

[0015] The beneficial effects of the present application are: The prior art is difficult to set up a coil pipe because the stirring structure needs to be arranged in the concentration tank, and the convergence of the liquid in the tank body relies entirely on the effect of the stirring structure itself. Since crystallization also occurs in the tank body, the too gentle convergence is not conducive to the crystallization of ammonium rhenate, and the purity of the ammonium rhenate produced by crystallization does not meet the factory requirements, and needs to be purified multiple times. Therefore, the present application is provided with a multi-position flow mixing structure, the wrapping piece and the upper closing piece are arranged at the upper and lower ends of the entire reaction cavity, so that the entire reaction cavity has a fluctuating space. Under the intervention of external force, the wrapping piece or the upper closing piece deforms, the solution in the reaction cavity shakes, the rotating effect and the turbulent effect generated by the rotating piece are generated synchronously, the solution at the bottom corner and the top corner is shaken to the middle, the effect of uniform heating of the internally arranged coil pipe is achieved, and the flow of the solution in the entire reaction cavity is more disordered due to the flow mixing effect of the movable flow mixing frame, and the concentration effect is better.

[0016] The weight of the solution in the entire reaction cavity is very heavy, and it is not a problem to rely on its own metal structure, but if the wrapping piece is arranged, the originally stable structure may become unstable. Therefore, the present application is provided with internal mounting strips, external mounting strips, mounting grooves and other cooperating pieces on the inner and outer sides of the reaction cavity, so that the wrapping piece has more pressure points after installation and can always remain stable during repeated deformation.

[0017] Correspondingly, the wrapping piece itself needs to be strengthened after the installation structure is arranged in the reaction cavity. In the present application, the wrapping piece is arranged as an inner receiving piece, a middle fixing piece and an outer receiving piece corresponding to the internal mounting strips, the external mounting strips and the mounting grooves. Through the three-layer deformable piece structure, the supporting effect and the deformation effect are achieved, and the strength and the deformation degree are maintained layer by layer.

[0018] During the flow mixing process of the flow mixing frame, it needs to be displaced to achieve the effect of cutting the water flow vertically. Therefore, the flow mixing frame of the present application is slidably connected with the guide piece and the guide rib, so that it can move upward to break the flow when the flow mixing ring is subjected to an upward force, and it can slowly fall back under the effect of gravity when the external force effect is achieved, achieving periodic cutting.

[0019] In order to ensure the breaking flow effect of the mixed flow ring, the single circular ring effect is far from enough, therefore, the breaking flow cone and the cross flow cone are arranged at the upper end and the inner side of the mixed flow ring, so that the breaking flow in multiple directions can be realized, and the resistance when the mixed flow ring goes up is reduced.

[0020] When the mixed flow ring is acted on by the wrapping piece, in order to improve the force transmission effect, the power assisting piece is arranged at the bottom of the mixed flow ring, the power assisting piece is in contact with the wrapping piece through an arc-shaped contact plate and is connected to the mixed flow ring through the extension arm, and when the wrapping piece changes, the mixed flow ring can change correspondingly.

[0021] In order to facilitate the deformation and reset of the upper closing piece, the upper closing piece of the application is also arranged to be movable and larger than the sealing piece of the upper recess, so that it has sealing degree and deformation degree.

[0022] If the wrapping piece or the upper closing piece changes by the centrifugal force caused by the rotation of the rotating piece, the fluctuation amplitude is very small, therefore, the outer extrusion structure is arranged on the basis of the mixed flow structure, the wrapping piece is pressed through the outer extrusion structure, the deformation of the wrapping piece itself is interfered, when the deformation amplitude of the wrapping piece becomes large, the upper closing piece is also extruded outward by the solution, and then the fluctuation degree of the whole solution is improved, so that the activity of the solution is improved.

[0023] During the setting of the pressure increasing piece, the wrapping piece which is extruded outward needs to be periodically acted inward, therefore, the pressure increasing piece of the application adopts the mode of the pressure increasing cylinder cooperating with the arc surface, the inward pressure bearing of the surface type is realized through the adhering type pressure increasing, the deformation amplitude of the wrapping piece is ensured, and then the overall pressure increasing effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0025] Figure 1 is a perspective structural schematic view of the application.

[0026] Figure 2 is a top view structural schematic view of the application.

[0027] Figure 3 is a sectional view of the application at A-A. Figure 2

[0028] ​Figure 4 is a magnified view of the A region in the present application Figure 3

[0029] Figure 5 is a magnified view of the B region in the present application Figure 3

[0030] in the figure: Concentrated cauldron body 10, reaction cavity 20, guide rib 21, annular plate 201, sandwich 30, rotating part 40, outer feed pipe 50, multi-position mixed flow structure 60, lower concave hole 61, inner mounting strip 611, outer mounting strip 612, wrapping part 62, inner receiving piece 621, outer receiving piece 622, middle fixed piece 623, mixed flow frame 63, mixed flow ring 631, annular ring 6311, broken flow cone 6312, cross flow cone 6313, guide piece 632, power assisting part 633, extension arm 6331, contact plate 6332, friction particles 6333, upper concave hole 64, upper closure 65, outer impact structure 70, lower empty cylinder 71, pressure increasing part 72, mounting ring 721, pressure increasing cylinder 722, camber 723. DETAILED DESCRIPTION

[0031] For the embodiments of the present application, all belong to the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor belong to the scope of protection of the present application.

[0032] In the description of the present application, the terms "first", "second" are only used for the purpose of description, and cannot be understood as the purpose of indicating the mode, technical solution and advantages, and the following will be clearly and completely described the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor belong to the scope of protection of the present application.

[0033] Referring to Figures 1-5 ​​As shown, a kind of preparation device of ammonium rhenate, including: a concentration kettle body 10, the inside of the concentration kettle body 10 is provided with a reaction cavity 20, the reaction cavity 20 is provided with a interlayer 30 between concentration kettle body 10, the top of the concentration kettle body 10 is provided with a rotating member 40 through the interlayer 30, reaction cavity 20, the reaction cavity 20 is connected with an outer feed pipe 50, the reaction cavity 20 is connected with steam circulation pipe and discharge pipe, further including: multi-position mixed flow structure 60, the reaction cavity 20 is a circular cylinder, the inside of the circular cylinder is provided with several guide ribs 21, the multi-position mixed flow structure 60 includes several lower concave holes 61 opened in the bottom of circular cylinder, a wrapping piece 62 is installed in the lower concave hole 61, the wrapping piece 62 is used to hold in the circular cylinder, the inside of the guide rib 21 is slidably installed with a mixed flow frame 63, the bottom of the mixed flow frame 63 is attached on the wrapping piece 62, when the wrapping piece 62 is upflushed, the mixed flow frame 63 moves up along the guide rib 21 and makes the ammonium rhenate solution in the circular cylinder shake, the top of the circular cylinder is provided with several upper concave holes 64, the upper concave hole 64 is installed with upper closure 65;Outer flush structure 70 includes lower empty cylinder 71 arranged at the lower end of lower concave hole 61, the inside of the lower empty cylinder 71 is provided with booster 72, the booster 72 periodically exports to the direction of wrapping piece 62, so that the wrapping piece 62 is recessed to the inside of reaction cavity 20.

[0034] Since the whole ammonium rhenate production is all adopted buried installation mode, so the top surface of the concentration kettle body 10 is also covered by cover plate, so that it can be walked from the top surface to facilitate maintenance.

[0035] In the whole cycle, steam is always in the circulating state, specifically, the reaction cavity 20 is fixed in the concentration kettle body 10 by a horizontal annular plate 201 in the inside of the concentration kettle body 10, one side of the bottom of the annular plate 201 is provided with steam inlet pipe, the bottom of the right side of the concentration kettle body 10 is provided with steam outlet pipe.

[0036] The prior art is difficult to set up a coil pipe because of the need to set up a stirring structure in the concentration tank, and the mixing of the liquid in the tank body is entirely dependent on the effect of the stirring structure itself, and the crystallization is also carried out in the tank body, so that the too gentle mixing is not conducive to the crystallization of ammonium rhenate, and the purity of the ammonium rhenate produced by crystallization does not meet the factory requirements, and needs to be purified several times, therefore, the multi-position mixed flow structure 60 is arranged, the wrapping piece 62 and the upper closing piece 65 are arranged at the upper and lower ends of the whole reaction cavity 20, so that the whole reaction cavity 20 has a fluctuating space, under the intervention of part of external force, the wrapping piece 62 or the upper closing piece 65 is deformed, so that the solution in the reaction cavity 20 is shaken, and then the rotating effect of the rotating piece 40 and the turbulent effect are synchronously generated, and the solution at the bottom corner and the top corner is shaken to the middle, so that the effect of uniform heating of the internally arranged coil pipe is achieved, and in addition, the mixed flow effect of the movable mixed flow frame 63 makes the flow of the solution in the whole reaction cavity 20 more disordered, and the concentration effect is better.

[0037] The weight of the solution in the whole reaction cavity 20 is very heavy, and if it relies on its own metal structure, it is not a problem, but if the wrapping piece 62 is arranged, the originally stable structure may become unstable, therefore, the lower recess hole 61 of the embodiment is arranged with two inner installation strips 611 on the side close to the inside of the reaction cavity 20, the inner installation strip 611 at the upper end is located at the lower end of the guide rib 21, the lower recess hole 61 is arranged with an outer installation strip 612 on the side away from the inside of the reaction cavity 20, and the lower recess hole 61 is recessed inwardly at the cross-sectional position of the reaction cavity 20, and the inner installation strip 611, the outer installation strip 612 and the installation groove are arranged on the inner and outer sides of the reaction cavity 20, so that the wrapping piece 62 has more pressure points after installation and can always remain stable in repeated deformation.

[0038] Correspondingly, after the installation structure is arranged in the reaction cavity 20, the wrapping piece 62 itself also needs to be strengthened, and the wrapping piece 62 of the embodiment comprises an inner receiving piece 621 connected between the two inner installation strips 611, an outer receiving piece 622 connected between the two outer installation strips 612, and a middle fixing piece 623 embedded in the installation groove, and the lengths of the inner receiving piece 621, the outer receiving piece 622 and the middle fixing piece 623 are all longer than the hole diameter of the lower recess hole 61, the wrapping piece 62 is arranged to correspond to the inner receiving piece 621, the middle fixing piece 623 and the outer receiving piece 622 of the inner installation strip 611, the outer installation strip 612 and the installation groove, and through the three-layer deformable piece structure, the supporting effect and the deformation effect are achieved, and the strength and the deformation degree are maintained by layer by layer.

[0039] The mixed flow frame 63 needs to be displaced during the process of mixing flow, so as to achieve the effect of longitudinal cutting water flow. Therefore, the mixed flow frame 63 of the embodiment comprises a mixed flow ring 631 surrounding the rotating member 40, the outer side of the mixed flow ring 631 is provided with a plurality of guide pieces 632 slidingly installed in the inner side of the guide rib 21, the lower end of the mixed flow ring 631 is provided with a plurality of booster pieces 633, the bottom of the booster piece 633 is attached to the inner side of the wrapping piece 62, the mixed flow frame 63 is slidingly matched with the guide rib 21 through the guide piece 632, so that the mixed flow ring 631 can be moved upward to break the flow when it is subjected to upward force, and can slowly fall back through its own gravity when the external force effect is achieved, realizing periodic cutting.

[0040] In order to ensure the breaking flow effect of the mixed flow ring 631, the single circular ring effect is far from enough, therefore, the mixed flow ring 631 of the embodiment comprises a ring-shaped ring 6311 surrounding the rotating member 40, the top of the ring-shaped ring 6311 is provided with a plurality of breaking flow cones 6312, the inner side of the ring-shaped ring 6311 is provided with a plurality of cross flow cones 6313, the breaking flow cones 6312 and the cross flow cones 6313 are arranged at the upper end and the inner side of the mixed flow ring 631, so as to realize breaking flow in multiple directions and reduce the resistance when the mixed flow ring 631 moves upward.

[0041] In order to improve the transmission effect of force when the mixed flow ring 631 is acted on by the wrapping piece 62, the booster piece 633 of the embodiment comprises an extension arm 6331 connected to the lower end of the mixed flow ring 631, the bottom of the extension arm 6331 is provided with a contact plate 6332, the bottom of the contact plate 6332 is outwardly provided with a plurality of friction particles 6333, the contact plate 6332 is attached to the inner side of the wrapping piece 62, the booster piece 633 is arranged at the bottom of the mixed flow ring 631, the booster piece 633 is contacted with the wrapping piece 62 through an arc-shaped contact plate 6332 and connected to the mixed flow ring 631 through the extension arm 6331, the mixed flow ring 631 can change correspondingly when the wrapping piece 62 changes.

[0042] In order to facilitate the deformation and reset of the upper closing piece 65, the upper closing piece 65 of the embodiment is an inwardly recessed sealing piece, the length of the sealing piece is greater than the length of the upper recessed hole 64, the upper closing piece 65 is also arranged to be movable and greater than the sealing piece of the upper recessed hole 64, so as to have sealing degree and deformation degree.

[0043] If the wrapping piece 62 or the upper closing piece 65 is changed by the centrifugal force caused by the rotation of the rotating piece 40, the fluctuation amplitude is very small, therefore, the outer pressing structure 70 is arranged on the basis of the multi-position mixing flow structure 60, the outer pressing structure 70 can press the wrapping piece 62, interfere with the deformation of the wrapping piece 62, when the deformation amplitude of the wrapping piece 62 is large, the upper closing piece 65 is also expanded by the solution, and the fluctuation degree of the whole solution is improved, so that the activity of the solution is improved.

[0044] The pressurizing piece 72 needs to periodically act on the outwardly expanded wrapping piece 62 during the arrangement process, therefore, the pressurizing piece 72 comprises a mounting ring 721 arranged in the inside of the lower empty cylinder 71, the inside of the mounting ring 721 is provided with a pressurizing oil cylinder 722, the output end of the pressurizing oil cylinder 722 is attached to the outside of the wrapping piece 62 through an arc surface 723, the pressurizing piece 72 adopts the mode of the pressurizing oil cylinder 722 cooperating with the arc surface 723, the outwardly expanded wrapping piece 62 is periodically pressed inwards by the pressurizing mode of the arc surface 723, the deformation amplitude of the wrapping piece 62 is ensured, and the overall pressurizing effect is ensured.

[0045] The above only describes the preferred embodiments of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An apparatus for the preparation of ammonium rhenate comprising: A concentration kettle body (10), the inner side of the concentration kettle body (10) is provided with a reaction cavity (20), a sandwich layer (30) is arranged between the reaction cavity (20) and the concentration kettle body (10), a rotating part (40) penetrating through the sandwich layer (30) and the reaction cavity (20) is arranged at the top of the concentration kettle body (10), the reaction cavity (20) is connected with an outer feed pipe (50), the reaction cavity (20) is externally connected with a steam circulation pipe and a discharge pipe, and the concentration kettle body (10) is characterized by further comprising: A multi-position mixed flow structure (60), the reaction cavity (20) is a circular cylinder, a plurality of guide ribs (21) are arranged on the inner side of the circular cylinder, the multi-position mixed flow structure (60) comprises a plurality of lower concave holes (61) formed in the bottom of the circular cylinder, a wrapping part (62) is arranged in the lower concave hole (61), the wrapping part (62) is used for holding the ammonium rhenate solution in the circular cylinder, a mixed flow frame (63) is slidably arranged on the inner side of the guide rib (21), the bottom of the mixed flow frame (63) is attached to the wrapping part (62), when the wrapping part (62) is pushed upward, the mixed flow frame (63) moves upward along the guide rib (21) and drives the ammonium rhenate solution in the circular cylinder to shake, a plurality of upper concave holes (64) are formed in the top of the circular cylinder, and an upper closing part (65) is arranged in the upper concave hole (64). An external pushing structure (70) comprises a lower hollow cylinder (71) arranged at the lower end of the lower concave hole (61), a booster (72) is arranged on the inner side of the lower hollow cylinder (71), the booster (72) periodically outputs in the direction of the wrapping part (62), so that the wrapping part (62) is recessed towards the inner side of the reaction cavity (20).

2. The apparatus of claim 1, wherein the apparatus is configured to produce ammonium rhenate having a purity of at least 99.9% by weight. Two inner mounting strips (611) are arranged on the side close to the inner side of the reaction cavity (20) of the lower concave hole (61), the inner mounting strip (611) at the upper end is located at the lower end of the guide rib (21), an outer mounting strip (612) is arranged on the side away from the inner side of the reaction cavity (20) of the lower concave hole (61), and an installation groove is recessed inwardly at the position corresponding to the cross section of the reaction cavity (20) of the lower concave hole (61).

3. The apparatus for preparing ammonium perrylate according to claim 2, characterized in that, The wrapping part (62) comprises an inner receiving piece (621) connected between the two inner mounting strips (611), an outer receiving piece (622) connected between the two outer mounting strips (612), and a middle fixing piece (623) embedded in the installation groove.

4. The apparatus of claim 1, wherein the apparatus is configured to produce ammonium rhenate having a purity of at least 99.99% by weight. The mixed flow frame (63) comprises a mixed flow ring (631) surrounding the outer side of the rotating part (40), a plurality of guide pieces (632) slidably arranged on the inner side of the guide rib (21) are arranged on the outer side of the mixed flow ring (631), a plurality of booster parts (633) are arranged at the lower end of the mixed flow ring (631), and the bottom of the booster part (633) is attached to the inner side of the wrapping part (62).

5. The apparatus for preparing ammonium perrylate according to claim 4, characterized in that, The mixed flow ring (631) comprises an annular ring (6311) surrounding the rotating member (40), the top of the annular ring (6311) is provided with a plurality of broken flow cones (6312), and the inner side of the annular ring (6311) is provided with a plurality of cross-flow cones (6313).

6. The apparatus of claim 4, wherein the apparatus further comprises a heating device for heating the solution of ammonium rhenate. The assisting member (633) comprises an extension arm (6331) connected to the lower end of the mixed flow ring (631), the bottom of the extension arm (6331) is provided with a contact plate (6332), the bottom of the contact plate (6332) is outwardly convexly provided with a plurality of friction particles (6333), and the contact plate (6332) is attached to the inner side of the wrapping member (62).

7. The apparatus of claim 1, wherein the apparatus is configured to produce ammonium rhenate. The upper sealing member (65) is an inwardly recessed sealing sheet, and the length of the sealing sheet is greater than the length of the upper concave hole (64).

8. The apparatus of claim 1, wherein, The reaction cavity (20) is fixed in the concentration kettle body (10) through an annular plate (201) transversely arranged in the inside of the concentration kettle body (10), one side of the bottom of the annular plate (201) is provided with a steam inlet pipe, and the bottom of the right side of the concentration kettle body (10) is provided with a steam outlet pipe.

9. The apparatus of claim 1, wherein, The pressure increasing member (72) comprises a mounting ring (721) arranged in the inside of the lower empty cylinder (71), the inner side of the mounting ring (721) is provided with a pressure increasing oil cylinder (722), and the output end of the pressure increasing oil cylinder (722) is attached to the outer side of the wrapping member (62) through an arc surface (723).

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