A sodium iodide crystal growth crucible with impurity filtering function

By introducing a stirring mechanism and a tilting mechanism into the sodium iodide crystal growth crucible, the problems of sodium iodide crystals adhering to the stirring blades and the inconvenience of tilting the crucible are solved, achieving efficient impurity filtration and simple crystal tilting.

CN224548618UActive Publication Date: 2026-07-24BEIJING SHENGTONGHEJING SCI & TECH
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Patent Information

Application Number
CN202521838474.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2026-07-24
Estimated Expiration
2035-08-28

AI Technical Summary

Technical Problem

In existing sodium iodide crystal growth crucibles, sodium iodide crystals easily adhere to the stirring blades during the stirring process, making them difficult to remove. Furthermore, the crucibles are heavy and inconvenient to tilt.

Method used

A sodium iodide crystal growth crucible with a stirring mechanism and a tilting mechanism was designed. The rotating rod and sleeve rod are driven by a motor to drive the collection box for stirring and impurity collection. The tilting mechanism assists in tilting the crucible, avoiding manual operation.

Benefits of technology

This effectively reduces the risk of sodium iodide crystals adhering to the stirring blades, improves crystal growth quality, simplifies the crucible tilting process, and reduces operational difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of sodium iodide crystal growth crucible with impurity filtering function, it is related to sodium iodide crystal manufacturing technical field, including crucible body, the upper side of the crucible body is fixedly connected with pot cover, the upper side of the pot cover is fixedly connected with the support frame of two left and right distribution, the upper side of the pot cover is fixedly connected with stirring mechanism, the lower side of the crucible body is overlapped with pouring mechanism, the inside of the crucible body is movably sleeved with graphite paper cylinder body.The utility model discloses a kind of sodium iodide crystal growth crucible with impurity filtering function, by motor drives rotating rod rotation, so that storage box is agitated to liquid, first telescopic rod drives storage box to move up and down, so that storage box is not in liquid when sodium iodide crystallization, reduce the adhesion of sodium iodide crystal, possibly rely on storage box and collect impurity, further improve the quality of sodium iodide crystal growth.
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Description

Technical Field

[0001] This utility model relates to the field of sodium iodide crystal manufacturing technology, and in particular to a sodium iodide crystal growth crucible with impurity filtration function. Background Technology

[0002] Sodium iodide crystals are typical scintillation crystals, colorless cubic crystals or white granules. They are white solids produced by reacting sodium carbonate or sodium hydroxide with hydroiodic acid, followed by evaporation of the solution. They are widely used in security inspection, medical testing, nuclear radiation detection and other fields.

[0003] Chinese patent document CN220767247U discloses a crucible for growing sodium iodide crystals, comprising a crucible and a lid. The crucible contains a graphite paper cylinder, and has an inner cavity and a slot. A heating wire is located within the inner cavity. A handle is provided on the crucible, and a stud is threaded onto the crucible, with a cap on the stud. The lid includes a sealing ring, a motor, a plate, a hook, and a sealing sleeve. The motor has a motor shaft, a stirring shaft, and stirring blades with mixing holes. By incorporating a surrounding heating wire structure on the crucible sidewall, and by placing a plate and a sealing ring between the lid and the crucible, along with a sealing sleeve on the motor shaft and mixing holes on the stirring blades, the overall efficiency of the crucible for growing sodium iodide crystals is improved, as is the ease of unloading the grown sodium iodide crystals.

[0004] The existing technology has the following problems:

[0005] The liquid inside the crucible is stirred directly by a motor-driven stirring blade. However, during operation, because the vertical position of the stirring blade remains unchanged, sodium iodide crystals adhere to the stirring blade during growth and are difficult to remove. In addition, the mixing holes set on it further increase the difficulty of cleaning. Utility Model Content

[0006] This invention provides a sodium iodide crystal growth crucible with impurity filtration function to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A sodium iodide crystal growth crucible with impurity filtration function includes a crucible body, a lid fixedly connected to the upper side of the crucible body, two support frames fixedly connected to the upper side of the lid, a stirring mechanism fixedly connected to the upper side of the lid, a tilting mechanism attached to the lower side of the crucible body, and a graphite paper tube movably sleeved on the inner side of the crucible body.

[0009] The stirring mechanism includes a motor, the lower side of which is fixedly connected to the upper middle part of the lid. A rotating rod is fixedly connected to the output end of the motor. A sleeve rod is movably sleeved on the outer side of the rotating rod. Two annularly distributed storage boxes are fixedly connected to the lower side of the sleeve rod.

[0010] Preferably, the lower inner surface of the storage box is inclined towards the lower side of the closed side.

[0011] Preferably, the inner side of the crucible body has a structure that is slightly thinner in the middle and slightly thicker at the top and bottom.

[0012] Preferably, a turntable is rotatably connected to the outer side of the sleeve rod, and a plurality of first telescopic rods distributed in a ring are fixedly connected to the upper side of the turntable, with the outer side of the first telescopic rods fixedly connected to the upper side of the crucible lid.

[0013] Preferably, the tilting mechanism includes a base plate, with two second telescopic rods fixedly connected to the upper side of the base plate, each second telescopic rod having a sliding sleeve fixedly connected to its upper side. Insert rods are movably fitted onto the inner sides of each sliding sleeve, and insert sleeves are rotatably connected to the sides of each insert rod that are close to each other. Insert shafts are movably fitted onto the inner sides of each insert sleeve, and the sides of each insert shaft that are close to each other are fixedly connected to the left and right sides of the crucible body. Two lifting rings, distributed front and rear, are rotatably connected to the bottom of the front and rear sides of the crucible body.

[0014] Preferably, a rubber pad is fixedly connected to the upper center of the base plate.

[0015] Preferably, the insert shaft is shaped like a frustum.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model provides a sodium iodide crystal growth crucible with impurity filtration function. Based on the cooperation of a stirring mechanism, a motor, a rotating rod, a sleeve rod, a storage box, a turntable, and a first telescopic rod, the motor drives the rotating rod to rotate, causing the storage box to stir the liquid. The first telescopic rod drives the storage box to move up and down, so that the storage box is not in the liquid during sodium iodide crystallization, reducing the adhesion of sodium iodide crystals. At the same time, the storage box collects any impurities that may appear, further improving the quality of sodium iodide crystal growth.

[0018] 2. This utility model provides a sodium iodide crystal growth crucible with impurity filtration function. Based on the cooperation of the crucible body, tilting mechanism, bottom plate, second telescopic rod, sliding sleeve, insertion rod, insertion sleeve, insertion shaft and lifting ring, the second telescopic rod drives the crucible body to move upward, and then the flowing lifting ring drives the crucible body to rotate, so that the tilting mechanism can assist in tilting the crucible body, avoiding the problem that it is difficult to tilt the crucible body stably due to the large overall mass of the manual lifting method. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the crucible body of this utility model;

[0021] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the crucible body of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the stirring mechanism of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the base plate of this utility model.

[0024] In the diagram: 1. Crucible body; 2. Crucible lid; 3. Support frame; 4. Stirring mechanism; 41. Motor; 42. Rotating rod; 43. Sleeve rod; 44. Storage box; 45. Turntable; 46. First telescopic rod; 5. Tilting mechanism; 51. Base plate; 52. Second telescopic rod; 53. Sliding sleeve; 54. Insert rod; 55. Insert sleeve; 56. Insert shaft; 57. Lifting ring; 6. Graphite paper tube. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figures 1-5 As shown, a sodium iodide crystal growth crucible with impurity filtration function includes a crucible body 1, a lid 2 fixedly connected to the upper side of the crucible body 1, two support frames 3 distributed on the left and right fixedly connected to the upper side of the lid 2, a stirring mechanism 4 fixedly connected to the upper side of the lid 2, a tilting mechanism 5 overlapping the lower side of the crucible body 1, and a graphite paper tube 6 movably sleeved on the inner side of the crucible body 1.

[0027] The stirring mechanism 4 includes a motor 41. The lower side of the motor 41 is fixedly connected to the upper middle part of the lid 2. The output end of the motor 41 is fixedly connected to a rotating rod 42. A sleeve rod 43 is movably sleeved on the outer side of the rotating rod 42. Two ring-shaped storage boxes 44 are fixedly connected to the lower side of the sleeve rod 43.

[0028] It should be noted that the crucible body 1, the lid 2, and the graphite paper tube 6 have the same structural shape as the components with the same function in the reference case, which are existing technologies and will not be described in detail here. The motor 41 can drive the rotating rod 42 to rotate. When the rotating rod 42 rotates, it drives the sleeve rod 43 to rotate. When the sleeve rod 43 rotates, it drives the storage box 44 to rotate. The storage box 44 has a built-in filter screen inside. When the storage box 44 rotates, it can stir the liquid in the crucible body 1 and can also collect impurities in the liquid by its own shape.

[0029] like Figure 4 As shown, the lower inner surface of the storage box 44 is inclined towards the lower side of the closed side.

[0030] It should be noted that the structure of the storage box 44 allows it to collect impurities while preventing them from overflowing.

[0031] like Figure 3 As shown, the inner shape of the crucible body 1 is slightly thinner in the middle and slightly thicker at the top and bottom.

[0032] It should be noted that during the experiment, the amount of material placed in the crucible body 1 is such that it is placed near the narrower part of the inner diameter of the crucible body 1. After the material melts, the impurities float on the liquid surface. The structure of the inner side of the crucible body 1 allows the storage box 44 to be placed close to the inner wall of the crucible body 1 without affecting the up and down movement of the storage box 44, thus ensuring that the impurities can be collected as much as possible.

[0033] like Figure 3 , Figure 4 As shown, a turntable 45 is rotatably connected to the outer side of the sleeve rod 43, and several first telescopic rods 46 distributed in a ring are fixedly connected to the upper side of the turntable 45. The outer side of the first telescopic rods 46 is fixedly connected to the upper side of the crucible cover 2.

[0034] It should be noted that the first telescopic rod 46 is an electric push rod that can drive the turntable 45 to move up and down, so that the collection box 44 can be removed from the liquid during crystallization to avoid affecting the crystallization.

[0035] like Figure 1 , Figure 3 and Figure 5As shown, the tilting mechanism 5 includes a base plate 51. Two second telescopic rods 52, distributed left and right, are fixedly connected to the upper side of the base plate 51. Sliding sleeves 53 are fixedly connected to the upper side of each of the two second telescopic rods 52. Insert rods 54 are movably sleeved on the inner side of each of the two sliding sleeves 53. Insert sleeves 55 are rotatably connected to the side of each of the two insert rods 54 that are close to each other. Insert shafts 56 are movably sleeved on the inner side of each of the two insert sleeves 55. Insert shafts 56 are fixedly connected to the left and right sides of the crucible body 1 on the side that are close to each other. Two lifting rings 57, distributed front and back, are rotatably connected to the bottom of the front and rear sides of the crucible body 1.

[0036] It should be noted that the second telescopic rod 52 is an electric push rod that can drive the sliding sleeve 53 to move up and down, thereby driving the crucible body 1 to move up and down. When the crucible body 1 is moved to the highest position, the lifting ring 57 can be pulled mechanically or manually to drive the crucible body 1 to rotate, which facilitates the cleaning of sodium iodide crystals inside the crucible body 1.

[0037] like Figure 5 As shown, a rubber pad is fixedly connected to the upper middle part of the base plate 51.

[0038] It should be noted that the rubber pad is used to prevent vibrations generated by the structural components on the crucible body 1 during operation from being transmitted downwards.

[0039] like Figure 3 As shown, the insert shaft 56 is shaped like a frustum.

[0040] It should be noted that the inner side of the insert 55 is provided with a rubber sleeve. When the insert shaft 56 is inserted into the inner side of the insert 55, the rubber sleeve fills the gap between the two. The shape of the insert shaft 56 reduces the wear between the parts and also reduces the impact of wear.

[0041] The working principle of this utility model is as follows: First, the motor 41 drives the rotating rod 42 to rotate. When the rotating rod 42 rotates, it drives the sleeve rod 43 to rotate. When the sleeve rod 43 rotates, it drives the storage box 44 to rotate. The storage box 44 has a built-in filter screen inside. When the storage box 44 rotates, it can stir the liquid in the crucible body 1 and can also collect impurities in the liquid by its own shape. The first telescopic rod 46 is an electric push rod that can drive the turntable 45 to move up and down, so that the storage box 44 can be separated from the liquid during crystallization to avoid affecting the crystallization. The motor 41 drives the rotating rod 42 to rotate, so that the storage box 44 stirs the liquid. The first telescopic rod 46 drives the storage box 44 to move up and down, so that the storage box 44 can crystallize sodium iodide. The crucible body 1 is not submerged in liquid, reducing the adhesion of sodium iodide crystals. Simultaneously, the collection box 44 collects any impurities that may appear, further improving the quality of sodium iodide crystal growth. Finally, the second telescopic rod 52 is an electric push rod that can move the sliding sleeve 53 up and down, thereby moving the crucible body 1 up and down. When the crucible body 1 reaches its highest point, the lifting ring 57 can be pulled mechanically or manually to rotate the crucible body 1, facilitating the cleaning of sodium iodide crystals inside. The second telescopic rod 52 moves the crucible body 1 upwards, and then the flowing lifting ring 57 rotates the crucible body 1, allowing the tilting mechanism 5 to assist in tilting the crucible body 1, avoiding the problem of unstable tilting of the crucible body 1 due to its large overall mass when manually lifted.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sodium iodide crystal growth crucible with impurity filtration function, comprising a crucible body (1), characterized in that: The crucible body (1) is fixedly connected to the upper side of the lid (2), and the lid (2) is fixedly connected to the upper side of the two support frames (3) distributed on the left and right. The lid (2) is fixedly connected to the upper side of the stirring mechanism (4), and the crucible body (1) is connected to the lower side of the tilting mechanism (5). The inner side of the crucible body (1) is movably fitted with a graphite paper tube (6). The stirring mechanism (4) includes a motor (41), the lower side of which is fixedly connected to the upper middle part of the lid (2). The output end of the motor (41) is fixedly connected to a rotating rod (42), and a sleeve rod (43) is movably sleeved on the outer side of the rotating rod (42). Two ring-shaped storage boxes (44) are fixedly connected to the lower side of the sleeve rod (43).

2. The sodium iodide crystal growth crucible with impurity filtration function according to claim 1, characterized in that: The inner lower surface of the storage box (44) is inclined towards the lower side of the closed side.

3. The sodium iodide crystal growth crucible with impurity filtration function according to claim 1, characterized in that: The inner shape of the crucible body (1) is slightly thinner in the middle and slightly thicker at the top and bottom.

4. The sodium iodide crystal growth crucible with impurity filtration function according to claim 1, characterized in that: The outer side of the sleeve rod (43) is rotatably connected to a turntable (45), and the upper side of the turntable (45) is fixedly connected to a plurality of first telescopic rods (46) arranged in a ring. The outer side of the first telescopic rods (46) is fixedly connected to the upper side of the crucible cover (2).

5. The sodium iodide crystal growth crucible with impurity filtration function according to claim 1, characterized in that: The tilting mechanism (5) includes a base plate (51). Two second telescopic rods (52) are fixedly connected to the upper side of the base plate (51) and distributed on the left and right. Sliding sleeves (53) are fixedly connected to the upper side of each of the two second telescopic rods (52). Insert rods (54) are movably sleeved on the inner side of each of the two sliding sleeves (53). Insert sleeves (55) are rotatably connected to the side of each of the two insert rods (54) that are close to each other. Insert shafts (56) are movably sleeved on the inner side of each of the two insert sleeves (55). Insert shafts (56) are fixedly connected to the left and right sides of the crucible body (1) on the side of each of the two insert shafts (56) that are close to each other. Two lifting rings (57) are rotatably connected to the bottom of the front and rear sides of the crucible body (1).

6. The sodium iodide crystal growth crucible with impurity filtration function according to claim 5, characterized in that: A rubber pad is fixedly connected to the upper middle part of the base plate (51).

7. The sodium iodide crystal growth crucible with impurity filtration function according to claim 5, characterized in that: The insert shaft (56) is shaped like a frustum.

Citation Information

Patent Citations

  • Crucible for growing sodium iodide crystals

    CN220767247U