A mixed nitrate molten salt preparation device

Abstract

The application discloses a kind of mixed nitrate class molten salt preparation device, it is related to molten salt preparation technical field, including jar body, the jar body is rotatably connected with rotating pipe, rotating pipe is fixedly connected with two fixed rods, further include: mixing mechanism.The application is expanded by the setting of scraping unit, inert gas in gas storage tank is expanded under the action of high temperature, gas expansion drives by rotating pipe into two installation cylinder, and drives two first sliding piston rod to move outward, first sliding piston rod moves and drives fixed frame to move, fixed frame moves and drives movable pipe and scraper to move, so that scraper is contacted with jar body inner wall, and the inner wall of jar body is scraped, movable pipe moves and drives rotating ring to rotate by connecting block, connecting rod and fixed block, rotating ring rotates and drives two baffle one to rotate, so that the area of two feed ports is increased, and then the feeding amount is increased, thereby adaptively increase the turnover amount, improve the uniform heating effect of material.

Description

Technical Field

[0001] This invention relates to the field of molten salt preparation technology, and in particular to an apparatus for preparing mixed nitrate molten salts. Background Technology

[0002] Mixed nitrates are widely used in solar thermal power generation, industrial thermal storage, and chemical reaction heat transfer fluids due to their excellent thermal stability, wide operating temperature range, and low cost. The key to preparing mixed nitrate molten salts lies in ensuring that the components are uniformly and thoroughly mixed to guarantee that the molten salt has a consistent melting point and thermal properties during subsequent use.

[0003] A search revealed Chinese patent CN119926268A, which discloses a device for preparing mixed nitrate molten salt, including a shell; a rotating shaft is arranged inside the shell, a collar is arranged around the rotating shaft, a fixing rod is arranged around the collar, and a scraper is fixedly arranged at the end of the fixing rod away from the collar; a transmission component is arranged at the center of the shell. In use, when the raw materials of molten salt in the shell are mixed, if crystals appear on the inner wall of the shell, the scraper is rotated to reciprocate to scrape off the crystals on the inner wall of the shell, thereby preventing crystals from remaining on the shell.

[0004] Based on the above research and existing technology, it was found that existing devices typically use scrapers to remove crystals adhering to the inner wall of the tank, aiming to allow the crystals to re-enter the molten salt system and dissolve due to the material's own temperature. The crystals scraped off the inner wall often detach as relatively large particles or clumps, which require a considerable amount of time to completely dissolve in the molten salt medium. During this process, some crystals adhere to the scraper surface due to the adhesion of the molten salt, gradually accumulating to form a thick crystalline layer. As the crystalline layer on the scraper surface thickens, it not only reduces the scraping efficiency of the scraper against the inner wall of the tank but also prevents the scraped crystals from effectively dispersing into the molten salt matrix, instead causing them to remain in a localized area between the scraper and the inner wall. Due to the lack of an active cleaning mechanism for the scraper surface or a mechanism to promote rapid crystal dissolution, these adhered crystals are difficult to fully dissolve in a short time, resulting in uneven component distribution and ultimately affecting the mixing uniformity and quality stability of the molten salt product. Summary of the Invention

[0005] The purpose of this invention is to provide a mixed nitrate molten salt preparation apparatus to solve the problems mentioned in the background art.

[0006] The technical solution of the present invention is: a mixed nitrate molten salt preparation device, comprising a tank, a rotating tube rotatably connected to the tank, two fixed rods fixedly connected to the rotating tube, and further comprising:

[0007] A mixing mechanism, which is located on a fixed rod;

[0008] The mixing mechanism includes a scraping unit, a turning unit, a circulation unit, and a sliding unit. The scraping unit includes a fixed cylinder fixedly connected to one end of two fixed rods. Each fixed cylinder is fixedly connected to a fixed tube, and each fixed cylinder is fixedly connected to an L-shaped tube at its bottom. Both the fixed tube and the L-shaped tube are slidably connected to a movable tube. One end of the two movable tubes is fixedly connected to a scraper. The scraper has a cavity inside, and both movable tubes are connected to the cavity. A rotating ring is rotatably connected to the fixed cylinder, and two baffles are fixedly connected to the rotating ring. Two feed inlets are opened at the bottom of the fixed cylinder. A fixed block is fixedly connected to the rotating ring. A connecting block is fixedly connected to the movable tube at the bottom end of the scraper. A connecting rod is rotatably connected to the connecting block and the fixed block. An air storage box is fixedly connected to the bottom end of the rotating tube. Two mounting cylinders are fixedly connected to the rotating tube. A first sliding piston rod is slidably connected to each mounting cylinder. One end of the first sliding piston rod is fixedly connected to a fixed frame, and one end of the fixed frame is fixedly connected to the movable tube at the top of the scraper.

[0009] Preferably, each of the first sliding piston rods is fitted with a return spring, and the two ends of the return spring are respectively fixedly connected to the fixing frame and the mounting cylinder.

[0010] Preferably, a motor is fixedly connected to the top of the tank, the output end of the motor is fixedly connected to the top of the rotating tube, and multiple stirring rods are fixedly connected to the rotating tube.

[0011] Preferably, the material turning unit includes a rotating tube rotatably connected to each fixed cylinder, an auger blade fixedly connected to the rotating tube, the auger blade being located inside the fixed cylinder, a gear fixedly connected to the top end of the rotating tube, a circular ring rack fixedly connected to the top inner wall of the tank body, the gear and the circular ring rack meshing, and the bottom end of the rotating tube being fixedly connected to the top end of the L-shaped tube.

[0012] Preferably, the circulation unit includes a fixed shell fixedly connected to two fixed cylinders respectively, a second sliding piston rod slidably connected to each fixed shell, a mounting shell fixedly connected to the top of the fixed cylinder, the mounting shell communicating with the rotating pipe, a one-way water inlet pipe communicating with the mounting shell and the fixed shell, a one-way water outlet pipe communicating with the fixed shell and the fixed pipe located at the top of the scraper, a vertical rod fixedly connected to one end of the second sliding piston rod, a T-shaped rod fixedly connected to the top end of the vertical rod, a strip-shaped hole opened on the T-shaped rod, an extrusion block slidably connected to the gear, and the top end of the extrusion block extending into the strip-shaped hole.

[0013] Preferably, a sliding sleeve is slidably connected to the rotating tube, and protrusions are fixedly connected to both the sliding sleeve and the bottom of the extrusion block. A rotating rod is rotatably connected to both protrusions. A connector is rotatably connected to the sliding sleeve, and two telescopic rods are fixedly connected to the bottom of the connector. The bottom ends of the two telescopic rods are fixedly connected to the top of the fixed cylinder. A cylindrical rod is fixedly connected to one of the telescopic rods. A guide plate is fixedly connected to the fixed frame, and an extrusion groove is formed on the guide plate. One end of the cylindrical rod extends into the extrusion groove.

[0014] Preferably, a partition is fixedly connected to the rotating tube, the partition is rotatably connected to the tank body, two sliding sleeves are slidably connected to the partition, two movable plates are slidably connected to the partition, and two vertical rods are respectively fixedly connected to the two movable plates.

[0015] Preferably, the sliding unit includes two movable rods slidably connected to the partition plate, the two movable rods being slidably connected to two fixed rods respectively, the bottom ends of the two movable rods being fixedly connected to baffles two respectively, the two baffles two respectively contacting two fixed cylinders, each of the two fixed cylinders having two discharge ports, the top ends of the two movable rods being fixedly connected to fixed columns, and the top inner wall of the tank being fixedly connected to an extrusion plate, the two fixed columns being able to contact the extrusion plate when rotating.

[0016] Preferably, each of the two movable rods is fitted with a compression spring, and the two ends of the compression spring are fixedly connected to the partition and the movable rod, respectively.

[0017] This invention provides an improved apparatus for preparing mixed nitrate molten salts, which has the following improvements and advantages compared with the prior art:

[0018] Firstly, this invention utilizes a scraping unit. Under high temperature, the inert gas in the gas storage tank expands, driving it through a rotating tube into two mounting cylinders. This expansion moves two first sliding piston rods outwards, causing the fixed frame to move. The fixed frame then moves the movable tube and scraper, bringing the scraper into contact with the inner wall of the tank and scraping the material. The movable tube, through a connecting block, connecting rod, and fixed block, drives a rotating ring to rotate. This rotation of the rotating ring causes two baffles to rotate, increasing the area of ​​the two feed inlets and thus increasing the feed rate. This adaptively increases the material turning rate and improves the uniform heating effect on the material.

[0019] Secondly, the present invention, through the setting of the material turning unit, the rotating tube rotates to drive the fixed rod and fixed cylinder to rotate, the fixed cylinder rotates to drive the rotating tube and gear to rotate, so that the gear rotates on the ring rack and rotates on its own axis, the gear rotates to drive the rotating tube and auger blade to rotate, the auger blade rotates to transport the material at the bottom of the tank upwards, and then discharges it from the discharge port, thereby turning the heated material upwards, realizing that the material can be heated evenly.

[0020] Thirdly, this invention utilizes a circulating unit where gears rotate to drive the extrusion block in a circular motion. This rotation of the extrusion block, in turn, causes the T-shaped rod, vertical rod, and second sliding piston rod to reciprocate. The oil, heated in the rotating pipe, circulates into the scraper, further heating it and dissolving the crystals adhering to the tank wall. When the scraper is not in contact with the inner wall of the tank, the circulating oil preheats it, and the preheated scraper heats the material, improving the heating effect. The moving fixed frame moves the guide plate, which in turn moves the telescopic rod, connecting piece, and sliding sleeve upwards via the cylindrical rod. The sliding sleeve moves the extrusion block via the protrusion and rotating rod, increasing its radius and thus the moving distance of the second sliding piston rod. This improves the oil circulation speed and heat exchange efficiency, enhancing the anti-crystallization effect.

[0021] Fourthly, this invention, through the setting of the sliding unit, realizes that the rotation of the fixed rod drives the rotation of the movable rod and the fixed column. When the fixed column rotates to the position of the extrusion plate, the fixed column moves downward. The movement of the fixed column drives the movable rod and the second baffle to move downward. The downward movement of the movable rod causes the extrusion spring to compress and undergo elastic deformation. The second baffle moves downward to block the current discharge port and open the other discharge port. When the fixed column moves away from the extrusion plate, the extrusion spring drives the movable rod to move upward, blocking the other discharge port and opening the current discharge port. This realizes that the material is discharged alternately from different heights, promoting the uniform distribution of the temperature field inside the tank. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the tank in this invention;

[0025] Figure 3This is a schematic diagram of the three-dimensional structure of the hybrid mechanism in this invention;

[0026] Figure 4 This is a three-dimensional structural diagram of the scraping unit in this invention;

[0027] Figure 5 This is a three-dimensional structural diagram of the sliding sleeve and connector in this invention.

[0028] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the fixed cylinder in this invention;

[0029] Figure 7 This is a schematic diagram of the cross-sectional structure of the rotating tube and mounting shell in this invention;

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the sliding unit in this invention;

[0031] Figure 9 For the present invention Figure 2 Enlarged 3D structural diagram at point A.

[0032] Figure label:

[0033] 1. Tank body; 11. Motor; 12. Rotating tube; 13. Stirring rod; 14. Fixed rod; 15. Fixed cylinder; 16. Fixed tube; 17. Movable tube; 18. Scraper; 19. L-shaped tube; 110. Gas storage tank; 2. Mounting cylinder; 21. First sliding piston rod; 22. Return spring; 23. Fixed frame; 3. Rotating ring; 31. Baffle one; 32. Feed inlet; 33. Fixed block; 34. Connecting rod; 35. Connecting block; 4. Rotating tube; 41. Screwdriver blade; 42. Gear; 43. Extrusion 44. T-shaped rod; 45. Vertical rod; 46. Fixed shell; 47. Second sliding piston rod; 48. One-way water inlet pipe; 49. One-way water outlet pipe; 410. Mounting shell; 411. Ring rack; 5. Sliding sleeve; 51. Protrusion; 52. Rotating rod; 53. Connecting piece; 54. Telescopic rod; 55. Cylindrical rod; 56. Guide plate; 67. Movable rod; 68. Discharge port; 69. Second baffle; 60. Fixed column; 61. Compression spring; 62. Compression plate; 73. Partition plate; 74. Movable plate. Detailed Implementation

[0034] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] This invention provides an improved apparatus for preparing mixed nitrate molten salts. The technical solution of this invention is as follows:

[0036] like Figures 1 to 9 As shown, this embodiment of the invention provides a mixed nitrate molten salt preparation apparatus, including a tank 1, a rotating tube 12 rotatably connected to the tank 1, two fixed rods 14 fixedly connected to the rotating tube 12, and further comprising:

[0037] A mixing mechanism, which is located on the fixed rod 14;

[0038] The mixing mechanism includes a scraping unit, a turning unit, a circulation unit, and a sliding unit. The scraping unit includes fixed cylinders 15 fixedly connected to one end of two fixed rods 14, a fixed tube 16 fixedly connected to each fixed cylinder 15, and an L-shaped tube 19 fixedly connected to the bottom of each fixed cylinder 15. Movable tubes 17 are slidably connected to both the fixed tubes 16 and the L-shaped tubes 19. A scraper 18 is fixedly connected to one end of each of the two movable tubes 17. The scraper 18 has a cavity inside. All are connected to the cavity. A rotating ring 3 is rotatably connected to the fixed cylinder 15. Two baffles 31 are fixedly connected to the rotating ring 3. Two feed ports 32 are opened at the bottom of the fixed cylinder 15. A fixing block 33 is fixedly connected to the rotating ring 3. A connecting block 35 is fixedly connected to the movable tube 17 located at the bottom end of the scraper 18. A connecting rod 34 is rotatably connected to both the connecting block 35 and the fixing block 33. An air storage box 110 is fixedly connected to the bottom end of the rotating tube 12. Two mounting cylinders 2 are fixedly connected to the rotating tube 12. Each mounting cylinder 2 is slidably connected to a first sliding piston rod 21. One end of the first sliding piston rod 21 is fixedly connected to a fixing frame 23. One end of the fixing frame 23 is fixedly connected to the movable tube 17 located at the top of the scraper 18. Through the setting of the scraping unit, the inert gas in the gas storage box 110 expands under the action of high temperature. The gas expansion drives the two mounting cylinders 2 through the rotating tube 12 and drives the two first sliding piston rods 21 to move outward. The movement of the first sliding piston rods 21 drives the fixing frame 23 to move. The movement of the fixing frame 23 drives the movable tube 17 and the scraper 18 to move, so that the scraper 18 contacts the inner wall of the tank 1 and scrapes the inner wall of the tank 1. The movement of the movable tube 17 drives the rotating ring 3 to rotate through the connecting block 35, the connecting rod 34 and the fixing block 33. The rotation of the rotating ring 3 drives the two baffles 31 to rotate, so that the area of ​​the two feed ports 32 increases, thereby increasing the feed amount, thus adaptively increasing the turning amount and improving the uniform heating effect of the material.

[0039] Furthermore, each of the first sliding piston rods 21 is fitted with a return spring 22, and the two ends of the return spring 22 are fixedly connected to the fixed frame 23 and the mounting cylinder 2, respectively. With the setting of the return spring 22, when the inert gas contracts, the return spring 22 drives the first sliding piston rod 21 and the scraper 18 to automatically reset, avoiding unnecessary wear caused by the scraper 18 sticking to the wall for a long time.

[0040] Furthermore, a motor 11 is fixedly connected to the top of the tank 1, and the output end of the motor 11 is fixedly connected to the top of the rotating tube 12. Multiple stirring rods 13 are fixedly connected to the rotating tube 12. With the setting of the stirring rods 13, the motor 11 drives the rotating tube 12 and the stirring rods 13 to rotate. The rotation of the stirring rods 13 can stir the material, thereby achieving uniform heating of the material.

[0041] Furthermore, the material turning unit includes a rotating tube 4 rotatably connected to each fixed cylinder 15, with an auger blade 41 fixedly connected to the rotating tube 4. The auger blade 41 is located inside the fixed cylinder 15. A gear 42 is fixedly connected to the top of the rotating tube 4, and a ring rack 411 is fixedly connected to the inner wall of the top of the tank body 1. The gear 42 and the ring rack 411 mesh with each other. The bottom end of the rotating tube 4 is fixedly connected to the top of the L-shaped tube 19. Through the setting of the material turning unit, the rotating tube 12 rotates, driving the fixed rod 14 and the fixed cylinder 15 to rotate. The rotation of the fixed cylinder 15 drives the rotating tube 4 and the gear 42 to rotate, so that the gear 42 rotates on the ring rack 411 and rotates on its own axis. The rotation of the gear 42 drives the rotating tube 4 and the auger blade 41 to rotate. The rotation of the auger blade 41 can transport the material at the bottom of the tank body 1 upward and then discharge it from the discharge port 61, thereby turning the heated material upward and realizing that the material can be heated evenly.

[0042] Furthermore, the circulation unit includes fixed shells 46 respectively fixedly connected to two fixed cylinders 15. A second sliding piston rod 47 is slidably connected to each fixed shell 46. A mounting shell 410 is fixedly connected to the top of each fixed cylinder 15. The mounting shell 410 is connected to the rotating pipe 4. A one-way water inlet pipe 48 is connected to both the mounting shell 410 and the fixed shell 46. A one-way water outlet pipe 49 is fixedly connected to both the fixed shell 46 and the fixed pipe 16 located at the top of the scraper 18. A vertical rod 45 is fixedly connected to one end of the second sliding piston rod 47. A T-shaped rod 44 is fixedly connected to the top of the vertical rod 45. A strip-shaped hole is opened on the T-shaped rod 44. A pressing block 43 is slidably connected to the gear 42. The top of the pressing block 43 extends into the strip-shaped hole. Through the arrangement of the circulation unit, the gear 42 rotates... The extrusion block 43 rotates in a circular motion, which in turn drives the T-shaped rod 44, the vertical rod 45, and the second sliding piston rod 47 to reciprocate. The reciprocating movement of the second sliding piston rod 47 draws oil from the rotating pipe 4 through the one-way water inlet pipe 48 and the mounting shell 410. Then, the oil is introduced into the fixed pipe 16 through the one-way water outlet pipe 49, flows into the scraper 18 through one of the movable pipes 17, and finally flows back into the rotating pipe 4 through the other movable pipe 17 and the L-shaped pipe 19. This allows the oil to be heated in the rotating pipe 4, thereby circulating and heating the scraper 18. This allows the scraper 18 to heat and dissolve the crystals attached to the wall, thus effectively eliminating crystals. When the scraper 18 is not in contact with the inner wall of the tank 1, the circulating oil can preheat the scraper 18. At the same time, the preheated scraper 18 can heat the material, improving the heating effect on the material.

[0043] Furthermore, a sliding sleeve 5 is slidably connected to the rotating tube 4. Both the sliding sleeve 5 and the bottom of the extrusion block 43 are fixedly connected to protrusions 51. A rotating rod 52 is rotatably connected to both protrusions 51. A connector 53 is rotatably connected to the sliding sleeve 5. Two telescopic rods 54 are fixedly connected to the bottom of the connector 53. The bottom ends of both telescopic rods 54 are fixedly connected to the top of the fixed cylinder 15. A cylindrical rod 55 is fixedly connected to one of the telescopic rods 54. A guide plate 56 is fixedly connected to the fixed frame 23. An extrusion groove is provided on the top, and one end of the cylindrical rod 55 extends into the extrusion groove. Through the setting of the guide plate 56, the fixed frame 23 moves and drives the guide plate 56 to move. The movement of the guide plate 56 drives the telescopic rod 54 and the connecting piece 53 to move upward through the cylindrical rod 55. The movement of the connecting piece 53 drives the sliding sleeve 5 to move upward. The movement of the sliding sleeve 5 drives the extrusion block 43 to move through the protrusion 51 and the rotating rod 52, thereby increasing the radius of the extrusion block 43, increasing the moving distance of the second sliding piston rod 47, improving the oil circulation speed and heat exchange efficiency, and enhancing the anti-crystallization effect.

[0044] Furthermore, a partition 7 is fixedly connected to the rotating tube 12, the partition 7 is rotatably connected to the tank body 1, the two sliding sleeves 5 are slidably connected to the partition 7, and two movable plates 71 are slidably connected to the partition 7. The two vertical rods 45 are respectively fixedly connected to the two movable plates 71. The partition 7 is used to protect the parts.

[0045] Furthermore, the sliding unit includes two movable rods 6 slidably connected to the partition 7, and the two movable rods 6 are respectively slidably connected to two fixed rods 14. A second baffle 62 is fixedly connected to the bottom end of each of the two movable rods 6, and the two second baffles 62 are respectively in contact with two fixed cylinders 15. Two discharge ports 61 are provided on each of the two fixed cylinders 15. A fixed column 63 is fixedly connected to the top end of each of the two movable rods 6. A pressing plate 65 is fixedly connected to the inner wall of the top of the tank body 1. The two fixed columns 63 can contact the pressing plate 65 when rotating. A compression spring 64 is sleeved on each of the two movable rods 6, and the two ends of the compression spring 64 are respectively fixedly connected to the partition 7 and the movable rod 6. The sliding unit enables the fixed rod 14 to rotate, driving the movable rod 6 and the fixed column 63 to rotate. When the fixed column 63 rotates to the position of the extrusion plate 65, it moves downward. The movement of the fixed column 63 drives the movable rod 6 and the second baffle 62 to move downward. The downward movement of the movable rod 6 compresses the extrusion spring 64 and causes it to undergo elastic deformation. The second baffle 62 moves downward to block the current discharge port 61 and open the other discharge port 61. When the fixed column 63 moves away from the extrusion plate 65, the extrusion spring 64 drives the movable rod 6 to move upward, blocking the other discharge port 61 and opening the current discharge port 61. This allows the material to be discharged alternately from different heights, promoting a uniform distribution of the temperature field inside the tank.

[0046] Specific implementation steps: The gas storage tank 110 is filled with inert gas. The motor 11 drives the rotating tube 12 and the stirring rod 13 to rotate. The rotation of the rotating tube 12 drives the fixed rod 14, the fixed cylinder 15, the fixed tube 16, the movable tube 17, and the scraper 18 to rotate. The rotation of the stirring rod 13, the fixed cylinder 15, and the scraper 18 can stir the material. Since the tank 1 is heated from the bottom, the material at the bottom can be heated first. The rotation of the fixed cylinder 15 drives the rotating tube 4 and the gear 42 to rotate, so that the gear 42 rotates on the ring rack 411 and rotates on its own axis. The rotation of the gear 42 drives the rotating tube 4 and the auger blade 41 to rotate. The rotation of the auger blade 41 can transport the material at the bottom of the tank 1 upward and then discharge it from the discharge port 61. In this way, the heated material can be turned upward, realizing the material can enter and exit the tank. Uniform heating is achieved because the gas storage tank 110 is located at the bottom of the tank 1, thus heating the inert gas in the gas storage tank 110. This causes the inert gas to expand under high temperature. The gas expansion drives the gas through the rotating tube 12 into the two mounting cylinders 2, and drives the two first sliding piston rods 21 to move outward. The movement of the first sliding piston rods 21 drives the fixed frame 23 to move, which in turn drives the movable tube 17 and scraper 18 to move. This causes the scraper 18 to contact the inner wall of the tank 1 and scrape the material from the inner wall. The movement of the movable tube 17, through the connecting block 35, connecting rod 34, and fixed block 33, drives the rotating ring 3 to rotate. The rotation of the rotating ring 3 drives the two baffles 31 to rotate, increasing the area of ​​the two feed inlets 32, thereby increasing... The feed rate is adjusted to adaptively increase the material turning rate, thereby improving the uniform heating effect on the material. The rotation of gear 42 drives the extrusion block 43 to rotate circumferentially. The rotation of extrusion block 43 drives the T-shaped rod 44, vertical rod 45, and second sliding piston rod 47 to reciprocate. The reciprocating movement of the second sliding piston rod 47 draws oil from the rotating pipe 4 through the one-way water inlet pipe 48 and the mounting shell 410, then guides it into the fixed pipe 16 through the one-way water outlet pipe 49, then flows into the scraper 18 through one of the movable pipes 17, and finally flows back into the rotating pipe 4 through the other movable pipe 17 and the L-shaped pipe 19. This allows the oil to be heated in the rotating pipe 4, thereby circulating and heating the scraper 18, causing the scraper 18 to heat and dissolve the crystals attached to the wall, thus effectively eliminating the crystals. When the scraper 18 is not in contact with the inner wall of the tank 1, the circulating oil can preheat the scraper 18, and the preheated scraper 18 can heat the material. The movement of the fixed frame 23 drives the guide plate 56 to move. The movement of the guide plate 56 drives the telescopic rod 54 and the connecting piece 53 to move upward through the cylindrical rod 55. The movement of the connecting piece 53 drives the sliding sleeve 5 to move upward. The movement of the sliding sleeve 5 drives the extrusion block 43 to move through the protrusion 51 and the rotating rod 52, thereby increasing the radius of the extrusion block 43, increasing the moving distance of the second sliding piston rod 47, improving the oil circulation speed, and thus improving the heating effect on the material. The rotation of the fixed rod 14 drives the movable rod 6 and the fixed column 63 to rotate. When the fixed column 63 rotates to the position of the extrusion plate 65...This causes the fixed column 63 to move downwards. The movement of the fixed column 63 drives the movable rod 6 and the second baffle 62 to move downwards. The downward movement of the movable rod 6 compresses the compression spring 64, causing it to elastically deform. The second baffle 62 moves downwards, blocking the current discharge port 61 and opening the other discharge port 61. When the fixed column 63 moves away from the compression plate 65, the compression spring 64 drives the movable rod 6 to move upwards, blocking the other discharge port 61 and opening the current discharge port 61. This allows materials to be discharged alternately from different heights, promoting a uniform temperature distribution within the tank.

[0047] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mixed nitrate molten salt preparation apparatus, comprising a tank (1), characterized in that: A rotating tube (12) is rotatably connected to the tank body (1), and two fixed rods (14) are fixedly connected to the rotating tube (12). The tank body (1) also includes: A mixing mechanism located on a fixed rod (14); The mixing mechanism includes a scraping unit, a turning unit, a circulation unit, and a sliding unit. The scraping unit includes a fixed cylinder (15) fixedly connected to one end of two fixed rods (14). A fixed tube (16) is fixedly connected to each fixed cylinder (15). An L-shaped tube (19) is fixedly connected to the bottom of each fixed cylinder (15). Movable tubes (17) are slidably connected to the fixed tubes (16) and the L-shaped tubes (19). A scraper (18) is fixedly connected to one end of the two movable tubes (17). A cavity is provided inside the scraper (18). The two movable tubes (17) are connected to the cavity. A rotating ring (3) is rotatably connected to the fixed cylinder (15). Two baffles (31) are fixedly connected to the rotating ring (3). Two feed ports (32) are opened at the bottom of the fixed cylinder (15). A fixed block (33) is fixedly connected to the rotating ring (3). A connecting block (35) is fixedly connected to the movable tube (17) at the bottom of the scraper (18). A connecting rod (34) is rotatably connected to the connecting block (35) and the fixed block (33). A gas storage box (110) is fixedly connected to the bottom of the rotating tube (12). Two mounting cylinders (2) are fixedly connected to the rotating tube (12). A first sliding piston rod (21) is slidably connected to each mounting cylinder (2). A fixed frame (23) is fixedly connected to one end of the first sliding piston rod (21). One end of the fixed frame (23) is fixedly connected to the movable tube (17) at the top of the scraper (18).

2. The apparatus for preparing mixed nitrate molten salt according to claim 1, characterized in that: Each of the first sliding piston rods (21) is fitted with a return spring (22), and the two ends of the return spring (22) are fixedly connected to the fixing frame (23) and the mounting cylinder (2), respectively.

3. The apparatus for preparing mixed nitrate molten salt according to claim 2, characterized in that: A motor (11) is fixedly connected to the top of the tank (1), and the output end of the motor (11) is fixedly connected to the top of the rotating tube (12). Multiple stirring rods (13) are fixedly connected to the rotating tube (12).

4. The apparatus for preparing mixed nitrate molten salt according to claim 3, characterized in that: The material turning unit includes a rotating tube (4) rotatably connected to each fixed cylinder (15), an auger blade (41) fixedly connected to the rotating tube (4), the auger blade (41) being located inside the fixed cylinder (15), a gear (42) fixedly connected to the top of the rotating tube (4), a ring rack (411) fixedly connected to the top inner wall of the tank body (1), the gear (42) and the ring rack (411) meshing, and the bottom end of the rotating tube (4) being fixedly connected to the top end of the L-shaped tube (19).

5. The apparatus for preparing mixed nitrate molten salt according to claim 4, characterized in that: The circulation unit includes a fixed shell (46) fixedly connected to two fixed cylinders (15) respectively. A second sliding piston rod (47) is slidably connected to each fixed shell (46). An installation shell (410) is fixedly connected to the top of the fixed cylinder (15). The installation shell (410) is connected to the rotating pipe (4). A one-way water inlet pipe (48) is connected to both the installation shell (410) and the fixed shell (46). A one-way water outlet pipe (49) is fixedly connected to both the fixed shell (46) and the fixed pipe (16) located at the top of the scraper (18). A vertical rod (45) is fixedly connected to one end of the second sliding piston rod (47). A T-shaped rod (44) is fixedly connected to the top end of the vertical rod (45). A strip hole is opened on the T-shaped rod (44). An extrusion block (43) is slidably connected to the gear (42). The top end of the extrusion block (43) extends into the strip hole.

6. The apparatus for preparing mixed nitrate molten salt according to claim 5, characterized in that: A sliding sleeve (5) is slidably connected to the rotating tube (4). A protrusion (51) is fixedly connected to both the sliding sleeve (5) and the bottom of the extrusion block (43). A rotating rod (52) is rotatably connected to both protrusions (51). A connector (53) is rotatably connected to the sliding sleeve (5). Two telescopic rods (54) are fixedly connected to the bottom of the connector (53). The bottom ends of the two telescopic rods (54) are fixedly connected to the top of the fixed cylinder (15). A cylindrical rod (55) is fixedly connected to one of the telescopic rods (54). A guide plate (56) is fixedly connected to the fixed frame (23). An extrusion groove is opened on the guide plate (56). One end of the cylindrical rod (55) extends into the extrusion groove.

7. The apparatus for preparing mixed nitrate molten salt according to claim 6, characterized in that: A partition (7) is fixedly connected to the rotating tube (12). The partition (7) is rotatably connected to the tank body (1). Two sliding sleeves (5) are slidably connected to the partition (7). Two movable plates (71) are slidably connected to the partition (7). Two vertical rods (45) are fixedly connected to the two movable plates (71) respectively.

8. The apparatus for preparing mixed nitrate molten salt according to claim 6, characterized in that: The sliding unit includes two movable rods (6) slidably connected to the partition (7). The two movable rods (6) are slidably connected to two fixed rods (14). The bottom ends of the two movable rods (6) are fixedly connected to baffles (62). The two baffles (62) are in contact with the two fixed cylinders (15). The two fixed cylinders (15) have two discharge ports (61). The top ends of the two movable rods (6) are fixedly connected to fixed columns (63). The inner wall of the top of the tank (1) is fixedly connected to an extrusion plate (65). When the two fixed columns (63) rotate, they can contact the extrusion plate (65).

9. The apparatus for preparing mixed nitrate molten salt according to claim 8, characterized in that: Both movable rods (6) are fitted with compression springs (64), and the two ends of the compression springs (64) are fixedly connected to the partition (7) and the movable rods (6) respectively.

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