Mixed nitrate fused salt preparation device

Abstract

The invention discloses a mixed nitrate type molten salt preparation device, and belongs to the technical field of nitrate production, and the mixed nitrate type molten salt preparation device comprises a shell; a rotating shaft is arranged in the shell, a lantern ring is arranged on the periphery of the rotating shaft, a fixing rod is arranged on the periphery of the lantern ring, a scraping plate is fixedly arranged at the end, away from the lantern ring, of the fixing rod, and a transmission assembly is arranged in the center of the shell. The inner wall of the shell is scraped back and forth through rotation of a scraper, so that the situation that after crystals exist on the shell, cleaning is not conducted in time, and consequently the follow-up fused salt raw material mixing work is affected is avoided, manual cleaning operation on the inner wall of the shell is reduced, and the working efficiency is improved. And the scraping plate generates a vibration effect through the elastic reset effect of the arc-shaped elastic plate, so that when the scraping plate is blocked by crystals, the crystals can be effectively shaken off through vibration.

Description

Technical Field

[0001] The invention relates to the technical field of nitrate production, in particular to a device for preparing mixed nitrate molten salt. Background Art

[0002] Mixed nitrate molten salt is a composite material composed of multiple nitrates mixed in a specific ratio, usually in liquid form at high temperatures. This type of molten salt has been widely used in many industrial fields due to its excellent thermophysical properties and chemical stability, especially as a heat transfer medium, heat storage material and reaction medium.

[0003] Chinese Patent Publication No.: CN221451762U discloses a molten salt grade nitrate product production device, including a crystallization kettle and a heat exchange component; a heat transfer device is provided in the crystallization kettle; the feed port of the crystallization kettle is connected to the raw material supply source through a feed pipeline, a feed pump and a feed valve are arranged on the feed pipeline, and the discharge port of the crystallization kettle is connected to the product collection area through the discharge pipeline; the heat exchange component includes a constant temperature water tank, a heat exchanger and a constant temperature water pump, the lower water outlet of the constant temperature water tank is connected to the constant temperature water pump through the water tank outlet pipeline, and the upper water return port of the constant temperature water tank is connected to the water outlet of the crystallization kettle through the water tank return pipeline; the heat exchanger is provided with a cooling water inlet, a cooling water outlet, a constant temperature water inlet and a constant temperature water outlet.

[0004] In the prior art, during the preparation of mixed nitrate molten salt, the mixed nitrate molten salt may cause crystallization on the inner wall of the preparation equipment due to temperature fluctuations, uneven concentration or oversaturation. If the crystals on the inner wall are not scraped off in time, the thermal resistance will increase and the heat transfer efficiency will be reduced.

[0005] Therefore, it is necessary to provide a mixed nitrate molten salt preparation device to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a device for preparing mixed nitrate molten salt to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mixed nitrate molten salt preparation device, comprising an outer shell; a rotating shaft is arranged in the outer shell, a first fixed ring is arranged on the periphery of the rotating shaft, a stirring rod is arranged on the periphery of the first fixed ring, a sleeve ring is arranged on the periphery of the rotating shaft, a fixed rod is arranged on the periphery of the sleeve ring, a scraper is fixedly arranged on the end of the fixed rod away from the sleeve ring, the scraper is slidably fitted with the inner wall of the outer shell, a transmission assembly is arranged in the center of the outer shell, the transmission assembly is connected to the fixed rod in transmission, when the rotating shaft rotates, the rotating shaft drives the fixed rod to rotate and drives the fixed rod to reciprocate up and down on the rotating shaft through the transmission assembly.

[0008] As a further solution of the present invention: the transmission assembly includes a bidirectional screw; a circular cavity is provided at the bottom of the rotating shaft, the bidirectional screw is arranged in the circular cavity, and the bottom of the bidirectional screw is fixedly connected to the outer shell, a transmission ring is provided for rotation on the periphery of the bidirectional screw, a connecting plate is fixedly provided on the outer side wall of the transmission ring, one end of the connecting plate away from the transmission ring is fixedly connected to the sleeve ring, and a sliding groove for sliding the connecting plate is provided on the side wall of the rotating shaft.

[0009] As a further solution of the present invention: a mounting groove is arranged on the periphery of the sleeve, a second fixing ring is fixedly arranged on the end of the fixing rod away from the scraper, the second fixing ring is rotatably arranged in the mounting groove, a resistance column is elastically arranged on the inner ring side wall of the second fixing ring, the end of the resistance column away from the second fixing ring slides into the mounting groove, and a groove is arranged on the side wall of the sleeve for slidingly matching with the resistance column.

[0010] As a further solution of the present invention: a vibration cavity is symmetrically arranged along the center of the scraper, a guide rail is arranged in the vibration cavity, an arc-shaped spring plate is slidably arranged in the vibration cavity, and sliding rods slidably connected to the guide rail are fixedly arranged at both ends of the arc-shaped spring plate.

[0011] As a further solution of the present invention: a turntable is rotatably arranged inside the side wall of the second fixed ring, a matching block is slidably fitted on the top of the turntable, a pull rope is fixedly arranged on the end of the matching block away from the second fixed ring, and the end of the pull rope away from the matching block is fixedly connected to the center of the arc-shaped spring plate, and the matching block and the pull rope are both slidably arranged in the side wall of the fixed rod.

[0012] As a further solution of the present invention: a driving groove is provided at the bottom of one end of the matching block close to the turntable, and an entry portion and a separation portion are provided at one end of the matching block close to the ring. The entry portion and the separation portion are both connected to the driving groove and are respectively provided at both ends of the driving groove. A driving column is fixedly provided on the top of the turntable, and the driving column is slidably matched with the driving groove.

[0013] As a further solution of the present invention: a positioning groove is arranged on the periphery of the rotating shaft, and a fixing block slidably connected to the positioning groove is arranged on the inner ring side wall of the first fixing ring.

[0014] As a further solution of the present invention: the stirring rod is rotatably connected to the first fixed ring, a pressure block is elastically provided on the side wall of the first fixed ring close to the sleeve ring, the first fixed ring is a hollow structure, an airbag is provided between the end of the pressure block away from the sleeve ring and the inner wall of the first fixed ring, the end of the stirring rod close to the first fixed ring is rotatably connected to the periphery with a sealing ring, the sealing ring is fixedly arranged in the first fixed ring, and the sealing ring and the airbag are connected by a connecting pipe.

[0015] As a further solution of the present invention: the stirring rod is provided with a first cavity and a second cavity at one end close to the first fixed ring, a piston plate is symmetrically arranged along the center in the second cavity, a spring is arranged between the piston plate and the second cavity, and a through hole is provided on the side wall of the stirring rod for connecting the second cavity and the sealing ring.

[0016] As a further solution of the present invention: a limit plate is fixedly arranged inside the first fixed ring, a clamping rod is elastically connected to one end of the limit plate close to the stirring rod, a limit hole corresponding to the clamping rod is arranged on the periphery of the end of the stirring rod, and the end of the limit plate away from the stirring rod is connected to the airbag.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: during use, when the raw materials of the molten salt in the outer shell are mixed and wall crystals appear on the inner wall of the outer shell, the scraper is rotated to scrape the inner wall of the outer shell back and forth, thereby avoiding the crystals on the outer shell not being cleaned in time, which affects the subsequent mixing of the molten salt raw materials, and reduces the operation of manual cleaning of the inner wall of the outer shell. The elastic reset effect of the arc-shaped spring plate allows the scraper to vibrate, and when the scraper is blocked by the crystals, the crystals can be effectively shaken off by vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the stirring rod in the present invention.

[0020] Figure 3 It is a structural schematic diagram of a cross-section of the middle portion of the rotating shaft in the present invention.

[0021] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in the middle.

[0022] Figure 5 It is a schematic structural diagram of the arc spring plate in the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the turntable in the present invention.

[0024] Figure 7 It is a structural schematic diagram of the matching block in the present invention.

[0025] Figure 8 It is a structural schematic diagram of the positioning groove in the present invention.

[0026] Fig. 9 It is a schematic structural diagram of the limiting plate in the present invention.

[0027] Fig.10It is a schematic diagram of the structure of the first cavity and the second cavity in the present invention.

[0028] In the figure: 1. shell; 2. slide groove; 3. rotating shaft; 4. scraper; 401. vibration chamber; 402. guide rail; 5. fixing rod; 6. bidirectional screw rod; 7. positioning groove; 8. first fixing ring; 9. stirring rod; 901. first cavity; 902. second cavity; 903. piston plate; 10. collar; 11. pull rope; 12. matching block; 121. driving groove; 122. entry part; 123. separation part; 13. resistance column; 14. transmission ring; 15. turntable; 151. driving column; 16. second fixing ring; 17. arc spring plate; 18. pressure block; 19. sealing ring; 20. limit plate; 21. clamping rod. DETAILED DESCRIPTION

[0029] See also Figure 1-Figure 10 In an embodiment of the present invention, a mixed nitrate molten salt preparation device includes a shell 1, a rotating shaft 3 is arranged in the shell 1, a first fixed ring 8 is arranged on the periphery of the rotating shaft 3, and a plurality of stirring rods 9 are arranged in a circular array along the center of the first fixed ring 8, a sleeve ring 10 is arranged on the periphery of the rotating shaft 3, a fixed rod 5 is arranged on the periphery of the sleeve ring 10, a scraper 4 is fixedly arranged on one end of the fixed rod 5 away from the sleeve ring 10, and the scraper 4 is slidably fitted with the inner wall of the shell 1, a transmission assembly is arranged in the center of the shell 1, and the transmission assembly is connected to the fixed rod 5 in transmission. When the rotating shaft 3 rotates, the rotating shaft 3 drives the fixed rod 5 to rotate and drives the fixed rod 5 to reciprocate up and down on the rotating shaft 3 through the transmission assembly.

[0030] Preferably, a motor for driving the rotating shaft 3 to rotate is provided at the top of the shell 1, and a feed pipe for injecting raw materials into the shell 1 is provided at the top of the shell 1, and a discharge pipe for discharging is provided at the bottom of the shell 1. When in use, the raw materials are injected into the shell 1 through the feed pipe. After the mixing of the molten salt raw materials is completed, the molten salt can be discharged through the discharge pipe at the bottom of the shell 1. The shell 1 is specifically a common device commonly used in the prior art for mixing molten salt raw materials and preparing molten salt. Other detailed structures and corresponding working principles will not be described in detail here.

[0031] In actual use, when the molten salt raw materials in the outer shell 1 are mixed, the mixed nitrate molten salt may cause the inner wall of the outer shell 1 to have wall crystallization due to temperature fluctuations, uneven concentration or oversaturation. In this process, when the motor drives the rotating shaft 3 to rotate and mixes the molten salt raw materials through the stirring rod 9, the rotation of the rotating shaft 3 will also drive the ring 10 to rotate. The rotation of the ring 10 drives the scraper 4 to rotate through the fixed rod 5. The rotation of the scraper 4 realizes the reciprocating scraping of the inner wall of the outer shell 1, thereby avoiding the crystallization on the outer shell 1. Failure to clean it in time affects the subsequent mixing of the molten salt raw materials, and reduces the operation of manual cleaning of the inner wall of the outer shell 1.

[0032] See also Figure 2 , Figure 3 , Figure 6 Preferably, the transmission assembly includes a bidirectional screw 6; a circular cavity is provided at the bottom of the rotating shaft 3, the bidirectional screw 6 is provided in the circular cavity, and the bottom of the bidirectional screw 6 is fixedly connected to the center of the bottom of the inner wall of the shell 1, and a transmission ring 14 is provided for rotation on the periphery of the bidirectional screw 6, and a connecting plate is fixedly provided on the peripheral side wall of the transmission ring 14, and the end of the connecting plate away from the transmission ring 14 is fixedly connected to the inner ring of the sleeve 10, and a slide groove 2 for sliding the connecting plate is provided on the side wall of the rotating shaft 3. In actual use, the slide groove 2 is connected to the circular cavity, and the connecting plate passes through the slide groove 2 and is fixed to the inner ring side wall of the sleeve 10, and a reciprocating thread is provided on the periphery of the bidirectional screw 6 , and the inner wall of the transmission ring 14 is provided with a protrusion that is slidably adapted to the reciprocating thread, so that when the rotating shaft 3 rotates, the sleeve ring 10 and the transmission ring 14 are driven to rotate through the connecting plate, and the rotation of the transmission ring 14 is caused by the action of the protrusion, so that the transmission ring 14 reciprocates up and down on the bidirectional screw 6, and then the scraper 4 moves up and down while rotating around the bidirectional screw 6 on the inner wall of the shell 1, so as to scrape off the crystals on the inner wall of the shell 1. It should be noted that both ends of the reciprocating thread on the bidirectional screw 6 are within the length of the slide groove 2, thereby avoiding the problem that the connecting plate may be stuck with the slide groove 2 and cause the protrusion to be damaged.

[0033] See also Figure 2 , Figure 3 , Figure 4Preferably, a mounting groove is provided on the periphery of the collar 10, and the mounting groove is arranged in an annular structure. A second fixing ring 16 is fixedly provided on the end of the fixing rod 5 away from the scraper 4, and the second fixing ring 16 is rotatably arranged in the mounting groove, that is, the second fixing ring 16 is rotatably connected to the mounting groove, and a resistance column 13 is elastically provided on the inner ring side wall of the second fixing ring 16 through a spring, and the end of the resistance column 13 away from the second fixing ring 16 slides into the mounting groove, and the cross-section of the end of the resistance column 13 is arranged in an arc structure, and the side wall of the collar 10 is provided with a groove corresponding to the resistance column 13 for sliding adaptation, and the grooves can be arranged in a plurality of groups in an annular array along the center of the collar 10. In this embodiment, the grooves are arranged in one group.

[0034] During actual use, in the initial state, the end of the resistance column 13 is adapted to the groove under the action of the corresponding spring, so that when the shaft 3 rotates, the ring 10 is driven to rotate, and the rotation of the ring 10 causes the second fixed ring 16, the fixed rod 5, and the scraper 4 to rotate. When there are crystals with strong adhesion on the inner wall of the shell 1, it will form an obstacle to the scraper 4, and the shaft 3 continues to rotate. At this time, the end of the resistance column 13 will slide and separate from the groove, so that the scraper 4, the fixed rod 5, and the second fixed ring 16 are in a state of relative stop rotation, avoiding the scraper 4 from continuing to rotate under the action of the shaft 3, which may cause damage to the scraper 4 or the inner wall of the shell 1, or cause damage to the rotating connection between the motor and the shaft 3.

[0035] See also Figure 5 Preferably, a vibration cavity 401 is symmetrically arranged along the center of the scraper 4, a guide rail 402 is arranged in the vibration cavity 401, an arc spring plate 17 is slidably arranged in the vibration cavity 401, and sliding rods slidably connected to the guide rail 402 are fixedly arranged at both ends of the arc spring plate 17. In actual use, the arc spring plate 17 and the guide rail 402 are arranged at one end of the vibration cavity 401 away from the center of the scraper 4, and the arc spring plate 17 is an arc-shaped curved structure. In the initial state, the center of the arc spring plate 17 is bent toward the periphery of the scraper 4 and is aligned with the inner wall of the vibration cavity 401. When the center of the arc spring plate 17 is subjected to a force moving toward the center of the scraper 4, the arc spring plate 17 will be deformed by the force, that is, it will change from protruding toward the periphery of the scraper 4 to protruding toward the center of the scraper 4. At this time, if the arc spring plate 17 is no longer subjected to force, the arc spring plate 17 will elastically return to its original position under the limiting and guiding action of the guide rail 402, and come into contact with the side wall of the scraper 4. At this time, the scraper 4 will vibrate through the action of the arc spring plate 17, and when the scraper 4 is blocked by crystals, the crystals will be effectively shaken off through vibration.

[0036] See also Figure 2 , Figure 3 , Figure 4Preferably, a turntable 15 is rotatably provided in the side wall of the second fixing ring 16, and a matching block 12 is slidably matched on the top of the turntable 15. A pull rope 11 is fixedly provided on the end of the matching block 12 away from the second fixing ring 16, and the end of the pull rope 11 away from the matching block 12 is fixedly connected to the center of the arc spring plate 17. The matching block 12 and the pull rope 11 are both slidably provided in the side wall of the fixing rod 5. In actual use, the turntable 15 is set at a position corresponding to the fixing rod 5, and the turntable 15 part is rotatably fitted with the inner wall of the fixing rod 5, and the side of the turntable 15 away from the fixing rod 5 is in the installation groove and is aligned with the inner wall of the ring 10. The wall rolls and fits, and the end of the pull rope 11 away from the matching block 12 slides through the center of the scraper 4 and then splits into two, and is respectively fixedly connected to the center of the opposite side of the two sets of arc-shaped spring plates 17, and the inner wall of the fixed rod 5 is provided with a stopper for limiting the sliding of the matching block 12 toward the scraper 4. In this way, when the shaft 3 rotates when the motor is started, the shaft 3 drives the collar 10, the second fixing ring 16, the fixing rod 5, and the scraper 4 to rotate, and when the scraper 4 is blocked by crystallization and stops rotating, the resistance column 13 moves in the direction of the fixing rod 5 and separates from the groove, and then the second fixing ring 16 and the collar 10 rotate relative to each other The rotating disk 15 rotates because it is in contact with the inner wall of the collar 10. The rotating disk 15 first causes the matching block 12 to move a certain distance toward the collar 10. The matching block 12 moves, and the pull rope 11 moves toward the collar 10. Then, the pull rope 11 pulls the arc spring plate 17 toward the center of the scraper 4. The two ends of the arc spring plate 17 are further forced to deform in the opposite direction of their initial state under the restriction and guidance of the guide rail 402. When the rotating disk 15 rotates to release the transmission with the matching block 12, the matching block 12 is no longer subjected to force. At this time, the arc spring plate 17 The elastic reset contacts the scraper 4 and causes the scraper 4 to vibrate, thereby shaking off the crystals blocked by the scraper 4. If the crystal adhesion is strong, the second fixed ring 16 and the ring 10 will continue to rotate relative to each other, thereby realizing the reciprocating transmission coordination between the turntable 15 and the matching block 12, so that the matching block 12 drives the pull rope 11 to make the arc-shaped spring plate 17 reciprocate. When the crystal is shaken off, the second fixed ring 16 may rotate relative to the ring 10, so that when the resistance column 13 corresponds to the groove, the resistance column 13 extends into the groove, and then restores the initial state, thereby facilitating the continued operation of the scraper 4.

[0037] See also Figure 4 , Figure 6 , Figure 7Preferably, a driving groove 121 is provided at the bottom of one end of the matching block 12 close to the rotating disk 15, and an entry portion 122 and a separation portion 123 are provided at one end of the matching block 12 close to the collar 10. The entry portion 122 and the separation portion 123 are both connected to the driving groove 121 and are respectively arranged at the two ends of the driving groove 121. A driving column 151 is fixedly provided on the top of the rotating disk 15, and the driving column 151 is slidably matched with the driving groove 121. In actual use, the entry portion 122 and the separation portion 123 are both arranged on a rotation trajectory of the driving column 151 with the rotating disk 15 as the center. In the initial state, the matching block 12 is at the top of the side of the rotating disk 15 away from the collar 10, and the driving column 151 is not in contact with the driving groove 121, the entry portion 122, and the separation portion 123. When the rotating disk 15 rotates, the rotating disk 15 drives the driving column 151 to rotate. At this time, the driving column 151 rotates and will first move into the entry portion 122, and then move to the rotating disk 15. After that, the driving column 151 continues to rotate and enters the driving groove 121, and moves in the driving groove 121 toward the entry portion 122. During this process, the rotation of the driving column 151 will allow the matching block 12 to move in the direction of the ring 10 under the action of the driving groove 121. When the driving column 151 rotates a certain angle, that is, when the matching block 12 moves the maximum distance toward the ring 10, and after the pull rope 11 pulls the arc spring plate 17 to become a bending state opposite to the initial state, the driving column 151 moves in the driving groove 121 to the separation portion 123, and then the arc spring plate 17 elastically resets, thereby causing the matching block 12 to move and reset, and so on. The rotation of the turntable 15 drives the driving column 151 to cooperate with the driving groove 121, the entry portion 122, and the separation portion 123 to realize the reciprocating motion of the matching block 12, so that the arc spring plate 17 can reciprocate to act on the scraper 4 to produce a vibration effect.

[0038] See also Figure 1-Figure 3 , Figure 8 Preferably, a positioning groove 7 is provided on the periphery of the rotating shaft 3, and a fixing block slidably connected to the positioning groove 7 is provided on the inner ring side wall of the first fixing ring 8. In actual use, the first fixing ring 8 is symmetrically arranged on the rotating shaft 3 along the sleeve ring 10 as the center, and the two adjacent groups of first fixing rings 8 are elastically connected by elastic telescopic columns, and a group of first fixing rings 8 close to the sleeve ring 10 is elastically connected to the sleeve ring 10 by elastic column telescopic columns. In this way, when the sleeve ring 10 is in the middle of the rotating shaft 3, multiple groups of first fixing rings 8 on the upper and lower sides are evenly separated on the rotating shaft 3. Through the action of the positioning groove 7, the position of the first fixing ring 8 on the rotating shaft 3 is relatively fixed, that is, the first fixing ring 8 can no longer rotate the rotating shaft 3, and multiple groups of stirring rods 9 are arranged in a ring array on the periphery of the first fixing ring 8, and the angular position of each group of stirring rods 9 on the corresponding group of first fixing rings 8 is different.

[0039] When the sleeve 10 moves downward from the middle on the rotating shaft 3, the sleeve 10 pushes the multiple groups of first fixing rings 8 below it to approach and fit together. When the multiple groups of first fixing rings 8 below the sleeve 10 fit together, a corresponding group of stirring rods 9 on each group of first fixing rings 8 are close to each other and fit together, showing a state in which the multiple groups of stirring rods 9 are gradually tilted upward, that is, the multiple groups of stirring rods 9 are not on a vertical line. In this case, when the rotating shaft 3 rotates at this time, the multiple groups of stirring rods 9 that are close to each other will rotate to shovel up the raw materials at the bottom of the shell 1, avoiding the problem that the raw materials at the bottom of the shell 1 are piled up and cannot be mixed in time. Of course, when the sleeve 10 moves upward with the middle of the rotating shaft 3 and prompts the multiple groups of first fixing rings 8 above the sleeve 10 to fit together, similarly, the multiple groups of stirring rods 9 approach and present a downward tilted state, that is, the multiple groups of stirring rods 9 above the sleeve 10 approach and the tilted state of the multiple groups of stirring rods 9 below the sleeve 10 are opposite, that is, when the rotating shaft 3 continues to rotate, the raw materials above the shell 1 are pushed downward, thereby improving the mixing efficiency of the raw materials.

[0040] Furthermore, preferably, the stirring rod 9 is rotatably connected to the first fixed ring 8. When the sleeve ring 10 does not cause the multiple groups of first fixed rings 8 to approach, the rotation of the rotating shaft 3 drives the first fixed rings 8 and the stirring rod 9 to rotate in the outer shell 1, thereby achieving the mixing of the raw materials in the outer shell 1, and a straight surface is provided on the side wall of the stirring rod 9 away from the first fixed ring 8. In this way, when it rotates with the rotating shaft 3 to mix the raw materials, the stirring rod 9 can realize self-rotation, thereby generating turbulence to the raw materials, thereby improving the mixing efficiency and quality of the raw materials.

[0041] See also Figure 8-Figure 10 Preferably, a pressure block 18 is elastically provided on the side wall of the first fixing ring 8 near the sleeve ring 10 through a spring, the first fixing ring 8 is a hollow structure, an airbag is provided between the end of the pressure block 18 away from the sleeve ring 10 and the inner wall of the first fixing ring 8, a solution is provided in the airbag, and a sealing ring 19 is rotatably connected to the outer periphery of the end of the stirring rod 9 near the first fixing ring 8, the sealing ring 19 is fixedly provided in the first fixing ring 8, the stirring rod 9 is rotatably connected to the first fixing ring 8 through the action of the sealing ring 19, the sealing ring 19 and the airbag are connected through a connecting pipe, a first cavity 901 and a second cavity 902 are provided at the end of the stirring rod 9 near the first fixing ring 8, a piston plate 903 is symmetrically provided in the second cavity 902 along the center, a spring is provided between the piston plate 903 and the second cavity 902, and a through hole for connecting the second cavity 902 and the sealing ring 19 is provided on the side wall of the stirring rod 9.

[0042] In actual use, a partition block is provided between the two groups of piston plates 903, and the partition block is fixedly provided at the center of the piston plate 903 to prevent the two groups of piston plates 903 from being in a state of being attached. The first cavity 901 and the second cavity 902 are respectively provided at the upper and lower sides of the end of the stirring rod 9, and the size of the first cavity 901 is smaller than the size of the second cavity 902. In this way, in the initial state, that is, the solution in the airbag has not completely entered the second cavity 902, and when the piston plate 903 is attached to the partition block, the center of gravity of the stirring rod 9 is at the center, that is, the stirring rod 9 will not have a problem of being overweight, and at this time the stirring rod 9 can be automatically Due to the rotation, the pressing block 18 is in a state of protruding from the side wall of the first fixing ring 8 when the multiple groups of first fixing rings 8 are separated from each other. When the ring 10 pushes the multiple groups of first fixing rings 8 to fit together, the pressing block 18 is forced to move into the first fixing ring 8, thereby compressing the airbag. Subsequently, the solution in the airbag enters the second cavity 902 through the connecting tube, the sealing ring 19, and the through hole, thereby causing the center of gravity of the end of the stirring rod 9 to shift. Subsequently, the stirring rod 9 rotates, so that after the multiple groups of stirring rods 9 are close to each other, they can present a relatively inclined slope state, thereby better guiding and conveying the raw materials in the outer shell 1.

[0043] Furthermore, preferably, a limit plate 20 is fixedly provided in the first fixing ring 8, and a clamping rod 21 is elastically connected to the end of the limit plate 20 close to the stirring rod 9 through a spring, and a limit hole corresponding to the clamping rod 21 is provided on the periphery of the end of the stirring rod 9, and the end of the limit plate 20 away from the stirring rod 9 is connected to the airbag. In actual use, the clamping rod 21 is located at the exact center of the end of the stirring rod 9, and the limit hole is provided at a position corresponding to the clamping rod 21 on the periphery of the end of the stirring rod 9. In the initial state, the pressing block 18 protrudes from the side wall of the sleeve 10, and the clamping rod 21 is retracted in the limit plate 20, and when the pressing block 18 shrinks into the ring 10, the pressing block 18 squeezes the airbag, so that the solution in the airbag enters the second cavity 902 and the limiting plate 20 respectively, so that the stirring rod 9 rotates under the gravity of the solution in the second cavity 902 until the stirring rod 9 is tilted, and the solution entering the limiting plate 20 pushes the clamping rod 21 to move toward the stirring rod 9 to protrude from the top of the limiting plate 20, and extend into the limiting hole to limit the position of the stirring rod 9, thereby avoiding the problem of rotation of multiple groups of stirring rods 9 after they are close to each other and combined into an inclined surface.

Claims

1. A mixed nitrate molten salt preparation device, comprising a housing; characterized in that: A rotating shaft is arranged in the outer shell, a first fixed ring is arranged on the periphery of the rotating shaft, a stirring rod is arranged on the periphery of the first fixed ring, a sleeve ring is arranged on the periphery of the rotating shaft, a fixed rod is arranged on the periphery of the sleeve ring, a scraper is fixedly arranged on the end of the fixed rod away from the sleeve ring, the scraper is slidably fitted with the inner wall of the outer shell, a transmission assembly is arranged at the center of the outer shell, the transmission assembly is transmission connected with the fixed rod, when the rotating shaft rotates, the rotating shaft drives the fixed rod to rotate and drives the fixed rod to reciprocate up and down on the rotating shaft through the transmission assembly.

2. A mixed nitrate molten salt preparation device according to claim 1, characterized in that: The transmission assembly includes a bidirectional screw; a circular cavity is provided at the bottom of the rotating shaft, the bidirectional screw is arranged in the circular cavity, and the bottom of the bidirectional screw is fixedly connected to the outer shell, a transmission ring is provided for rotation on the periphery of the bidirectional screw, a connecting plate is fixedly provided on the outer side wall of the transmission ring, one end of the connecting plate away from the transmission ring is fixedly connected to the sleeve ring, and a sliding groove for sliding the connecting plate is provided on the side wall of the rotating shaft.

3. A mixed nitrate molten salt preparation device according to claim 2, characterized in that: A mounting groove is arranged on the periphery of the sleeve, a second fixing ring is fixedly arranged on the end of the fixing rod away from the scraper, the second fixing ring is rotatably arranged in the mounting groove, a resistance column is elastically arranged on the inner ring side wall of the second fixing ring, the end of the resistance column away from the second fixing ring slides into the mounting groove, and a groove is arranged on the side wall of the sleeve for slidingly matching with the resistance column.

4. A mixed nitrate molten salt preparation device according to claim 3, characterized in that: A vibration cavity is symmetrically arranged along the center of the scraper, a guide rail is arranged in the vibration cavity, an arc spring plate is slidably arranged in the vibration cavity, and sliding rods slidably connected to the guide rail are fixedly arranged at both ends of the arc spring plate.

5. A mixed nitrate molten salt preparation device according to claim 4, characterized in that: A turntable is rotatably arranged inside the side wall of the second fixed ring, and a matching block is slidably fitted on the top of the turntable. A pull rope is fixedly arranged on the end of the matching block away from the second fixed ring, and the end of the pull rope away from the matching block is fixedly connected to the center of the arc-shaped spring plate. The matching block and the pull rope are both slidably arranged in the side wall of the fixed rod.

6. A mixed nitrate molten salt preparation device according to claim 5, characterized in that: A driving groove is arranged at the bottom of one end of the matching block close to the turntable, and an entry portion and a separation portion are arranged at one end of the matching block close to the collar. The entry portion and the separation portion are both connected to the driving groove and are respectively arranged at two ends of the driving groove. A driving column is fixedly arranged on the top of the turntable, and the driving column is slidably matched with the driving groove.

7. A mixed nitrate molten salt preparation device according to claim 2, characterized in that: A positioning groove is arranged on the periphery of the rotating shaft, and a fixing block slidably connected to the positioning groove is arranged on the inner ring side wall of the first fixing ring.

8. The device for preparing mixed nitrate molten salt according to claim 7, characterized in that: The stirring rod is rotatably connected to the first fixed ring, and a pressure block is elastically provided on the side wall of the first fixed ring close to the sleeve ring. The first fixed ring is a hollow structure, and an airbag is provided between the end of the pressure block away from the sleeve ring and the inner wall of the first fixed ring. The end of the stirring rod close to the first fixed ring is rotatably connected to the periphery with a sealing ring, and the sealing ring is fixedly provided in the first fixed ring, and the sealing ring and the airbag are connected.

9. A mixed nitrate molten salt preparation device according to claim 8, characterized in that: The stirring rod is provided with a first cavity and a second cavity at one end close to the first fixing ring, a piston plate is symmetrically arranged in the second cavity along the center, and a through hole for connecting the second cavity and the sealing ring is provided on the side wall of the stirring rod.

10. A mixed nitrate molten salt preparation device according to claim 9, characterized in that: A limit plate is fixedly arranged inside the first fixing ring, and a clamping rod is elastically connected to one end of the limit plate close to the stirring rod. A limit hole corresponding to the clamping rod is arranged on the periphery of the end of the stirring rod, and the end of the limit plate away from the stirring rod is connected to the airbag.

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