Drying device for sodium iodide crystal preparation

Abstract

The utility model belongs to the technical field of sodium iodide crystal preparation, and particularly relates to a sodium iodide crystal preparation drying device which comprises a drying box, a protection door is hinged to the side face of the drying box, an air outlet pipe fixedly penetrates through the top of the drying box, and a motor is fixedly connected to the bottom of the drying box. An output shaft of the motor is fixedly connected with a rotating shaft, the end, away from the motor, of the rotating shaft is fixedly connected with a containing frame, and the circumferential face of the rotating shaft is provided with a uniform heating device used for uniform heating in the drying process. The crystal drying device solves the problems that when a drying device is used, internal hot air is prone to being dispersed unevenly, the drying speed of crystals is possibly inconsistent due to the fact that the hot air is dispersed unevenly, the drying degrees of different portions of the crystals are different due to the uneven drying, and therefore the quality and performance of the crystals are possibly affected. Therefore, the uniform hot air enables the surface temperature and the internal temperature of each crystal to be consistent, thereby ensuring the uniform drying effect of the whole crystal.

Description

Technical Field

[0001] The utility model belongs to the technical field of sodium iodide crystal preparation, and particularly relates to a drying device for sodium iodide crystal preparation. Background Art

[0002] Sodium iodide crystals are widely used in medical imaging (such as gamma detectors in nuclear medicine), radiolabeling, and spectral analysis. High purity and a uniform crystal structure are essential for ensuring their stable and accurate performance. The preparation of sodium iodide crystals typically involves dissolution, crystallization, filtration, and drying. Among these steps, drying is crucial to the final quality of the crystals.

[0003] A Chinese patent with patent publication number CN221259363U discloses a temperature-controllable drying device for preparing sodium cholate tablets. The device relates to the technical field of drying devices and includes a drying box, wherein the lower surface of the drying box is fixedly connected to a motor, the output end of the motor passes through the lower surface of the drying box and extends to the other side, the output end of the motor is fixedly connected to a rotating shaft, and the upper end face of the rotating shaft is fixedly connected to a turntable. The patent uses a bidirectional screw, a movable block, a handle, a clamping block, and a rotating groove to fix the crucible on the turntable to prevent the crucible from shaking when the turntable rotates. A heating tube, a temperature sensor, and a controller are used in combination to control the stability of the drying box. The motor, rotating shaft, and turntable are used in combination to rotate the crucible, distributing heat more evenly on the surface of the sodium cholate crystals, accelerating the drying speed and improving the drying effect.

[0004] However, the current drying device has the following problems: the internal heat of the drying device is easily unevenly dispersed during use. The uneven hot air dispersion may cause inconsistent drying speeds of the crystals. This uneven drying will cause different parts of the crystal to dry to different degrees, which may affect the quality and performance of the crystals. Therefore, we propose a drying device for preparing sodium iodide crystals. Utility Model Content

[0005] The purpose of the utility model is to provide a drying device for preparing sodium iodide crystals, which can solve the problem in the related art that the internal heat of the drying device is easily unevenly dispersed during use. The uneven hot air dispersion may lead to inconsistent drying speeds of the crystals. Such uneven drying may lead to different drying degrees in different parts of the crystals, thereby possibly affecting the quality and performance of the crystals.

[0006] The technical solutions adopted by this utility model are as follows:

[0007] A drying device for preparing sodium iodide crystals, comprising a drying box, a protective door hinged on the side of the drying box, an air outlet pipe fixedly extending through the top of the drying box, a motor fixedly connected to the bottom of the drying box, a rotating shaft fixedly connected to the output shaft of the motor, a placement rack fixedly connected to the end of the rotating shaft remote from the motor, and a uniform heating device provided on the circumferential surface of the rotating shaft for uniformly heating during the drying process;

[0008] The uniform device includes a pushing rod, one end of the pushing rod is fixedly connected to the circumferential surface of the rotating shaft, two slide grooves are provided on the inner wall of the drying box, the bottom of the inner wall of the drying box is fixedly connected to a spring 1, and one end of the spring 1 away from the bottom of the inner wall of the drying box is fixedly connected to a slider, the side surface of the slider is slidably connected to the inner wall of the slide groove, the side surface of the slider is fixedly connected to a connecting long plate, the side surface of the connecting long plate is fixedly connected to a plurality of air pushing plates, the side surface of the connecting long plate is fixedly connected to a connecting plate, and the top of the connecting plate is fixedly connected to an arc block, and the side surface of the arc block is on the movement trajectory of the pushing rod;

[0009] The inner wall side of the drying box is provided with a knocking device to prevent the crystals from sticking during the drying process. The knocking device includes a notch, which is opened on the side of the drying box. A second spring is fixedly connected to the inner wall of the notch, and the end of the second spring away from the inner wall of the notch is fixedly connected to a fixed block. The side of the fixed block is fixedly connected to a fixed plate, and the side of the fixed plate is fixedly connected to a plurality of knocking rods, and the side of the fixed plate is fixedly connected to a semicircular plate.

[0010] The bottom of the push rod does not contact the inner wall of the drying box.

[0011] The air pushing plate is configured as an inclined plate with an inclination angle of thirty-five degrees, and the side surface of the air pushing plate does not contact the side surface of the placement rack.

[0012] The bottom of the placement rack does not contact the bottom of the inner wall of the drying box, and the side of the connecting long plate is slidably connected to the inner wall of the drying box.

[0013] The side surface of the semicircular plate is on the motion track of the push rod, the side surface of the fixing block is slidably connected to the inner wall of the notch, and the side surface of the fixing plate does not contact the inner wall of the drying box.

[0014] The side surface of the placement rack is located on the displacement track of the knocking rod, and the bottom of the fixing block is slidably connected to the bottom of the inner wall of the drying box.

[0015] The bottom of the semicircular plate does not contact the bottom of the inner wall of the drying box, and the width of the semicircular plate is one centimeter smaller than the width of the fixing block.

[0016] The technical effects achieved by this utility model are:

[0017] The utility model sets a uniform device, so that the push rod, arc block, connecting plate, connecting long plate, air pushing plate, slider, slide groove and spring cooperate to drive the air pushing plate to move up and down repeatedly. When the air pushing plate moves up and down, the air pushing plate pushes the hot air inside the drying box to be evenly dispersed. The uniform hot air makes the surface and internal temperature of each crystal consistent, thereby ensuring that the entire crystal is dried evenly and avoiding local over-wetting or over-drying.

[0018] The utility model provides a knocking device so that the push rod, the semicircular plate, the fixed block, the notch, the second spring, the fixed plate and the knocking rod cooperate to drive the knocking rod to knock the side of the placement rack, thereby preventing the sodium iodide crystals above the placement rack from sticking, ensuring a smooth and uniform surface of the crystals, and helping to avoid damage or deformation of the crystals when taking out or handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional appearance of the entire utility model;

[0020] Figure 2 It is a three-dimensional side sectional schematic diagram of the utility model as a whole;

[0021] Figure 3 This is a schematic diagram of the structure of the uniform device of the utility model Figure 1 ;

[0022] Figure 4 This is a schematic diagram of the structure of the uniform device of the utility model Figure 2 ;

[0023] Figure 5 It is a schematic diagram of the structure of the knocking device of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Drying box; 11. Protective door; 12. Exhaust pipe; 13. Rotating shaft; 14. Placement rack; 2. Evenness device; 21. Push rod; 22. Slide groove; 23. Spring 1; 24. Slider; 25. Connecting long plate; 26. Air push plate; 27. Connecting plate; 28. Arc block; 3. Knocking device; 31. Notch; 32. Spring 2; 33. Fixed block; 34. Fixed plate; 35. Knocking rod; 36. Semicircular plate. DETAILED DESCRIPTION

[0026] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0027] like Figure 1-5 As shown, a drying device for preparing sodium iodide crystals includes a drying box 1, a protective door 11 is hinged on the side of the drying box 1, a handle and a glass are fixedly connected to the side of the protective door 11, an air outlet pipe 12 is fixedly passed through the top of the drying box 1, a sealing cover is clamped on the circumferential surface of the air outlet pipe 12, a motor is fixedly connected to the bottom of the drying box 1, a rotating shaft 13 is fixedly connected to the output shaft of the motor, a placement rack 14 is fixedly connected to the end of the rotating shaft 13 away from the motor, a ventilation hole is opened on the side of the placement rack 14, and a uniform heating device 2 for uniform heating during the drying process is provided on the circumferential surface of the rotating shaft 13;

[0028] The uniformizing device 2 includes a pushing rod 21, one end of which is fixedly connected to the circumferential surface of the rotating shaft 13, and two slide grooves 22 are provided on the inner wall of the drying box 1. The slide groove 22 provides a movement trajectory, and a spring 23 is fixedly connected to the bottom of the inner wall of the drying box 1. The end of the spring 23 away from the bottom of the inner wall of the drying box 1 is fixedly connected to a slider 24, and the side of the slider 24 is slidably connected to the inner wall of the slide groove 22. The side of the slider 24 is fixedly connected to a connecting long plate 25, and the side of the connecting long plate 25 is fixedly connected to a plurality of air-pushing plates 26. The design of the plurality of air-pushing plates 26 makes the hot air pushed more evenly, and the side of the connecting long plate 25 is fixedly connected to a connecting plate 27, and the top of the connecting plate 27 is fixedly connected to an arc block 28. The arc block 28 provides force transmission, and the side of the arc block 28 is on the movement trajectory of the pushing rod 21.

[0029] According to the above structure, when in use, open the protective door 11 on the side of the drying box 1, then place the sodium iodide crystals that need to be dried on the top of the placement rack 14, and then turn on the motor. After the motor is turned on, the motor drives the rotating shaft 13 to rotate. When the rotating shaft 13 rotates, the rotating shaft 13 drives the placement rack 14 to rotate as well. When the rotating shaft 13 rotates, the rotating shaft 13 drives the push rod 21 to rotate as well. When the push rod 21 rotates, when the push rod 21 moves to the arc surface of the arc block 28, the push rod 21 will push the arc surface of the arc block 28 to drive the arc block 28 to move downward. When the arc When the shaped block 28 moves downward, the arc block 28 drives the connecting plate 27 to start moving downward. When the connecting plate 27 moves downward, the connecting plate 27 drives the side connecting long plate 25 to start moving downward. When the connecting long plate 25 moves downward, the connecting long plate 25 drives the side air pushing plate 26 to move downward. At the same time, when the connecting long plate 25 moves downward, the connecting long plate 25 drives the side slider 24 to move downward along the track of the slide groove 22. When the slider 24 moves downward, the slider 24 squeezes the spring 1 23 below. The spring 1 23 begins to contract after receiving the tension from the slider 24.

[0030] like Figure 4As shown, the bottom of the push rod 21 does not contact the inner wall of the drying box 1. The air push plate 26 is configured as an inclined plate with an inclination angle of 35 degrees. The inclined design allows the hot air to be pushed. The side of the air push plate 26 does not contact the side of the placement rack 14. The non-contact design reduces collisions between structures. The side of the placement rack 14 is on the displacement track of the knocking rod 35. The bottom of the fixing block 33 is slidably connected to the bottom of the inner wall of the drying box 1.

[0031] According to the above structure, when the push rod 21 continues to rotate with the rotation of the rotating shaft 13, the push rod 21 no longer pushes the arc surface of the arc block 28, and then the arc block 28 begins to move upward through the elastic force of the spring 23 at the bottom of the slider 24. When the slider 24 moves upward, the slider 24 drives the side connecting long plate 25 to start moving upward. When the connecting long plate 25 moves upward, the connecting long plate 25 drives the side air pusher plate 26 to start moving upward, thereby causing the air pusher plate 26 to move up and down repeatedly. When the air pusher plate 26 moves up and down, the air pusher plate 26 pushes the hot air inside the drying box 1 to be evenly dispersed. The uniform hot air makes the surface and internal temperature of each crystal consistent, thereby ensuring that the entire crystal is dried evenly and avoiding local over-wetting or over-drying.

[0032] like Figure 5 As shown, the inner wall side of the drying box 1 is provided with a knocking device 3 to prevent the crystals from sticking during the drying process. The knocking device 3 includes a notch 31. The notch 31 is opened on the side of the drying box 1. The design of the notch 31 limits the movement trajectory of the structure. A spring 2 32 is fixedly connected to the inner wall of the notch 31. The end of the spring 2 32 away from the inner wall of the notch 31 is fixedly connected to a fixed block 33. The side of the fixed block 33 is fixedly connected to a fixed plate 34. The side of the fixed plate 34 is fixedly connected to a plurality of knocking rods 35. The design of the plurality of knocking rods 35 enables the placement rack 14 of each layer to be knocked. The side of the fixed plate 34 is fixedly connected to a semicircular plate 36.

[0033] According to the above structure, when the push rod 21 rotates, the push rod 21 moves to the arc surface of the semicircular plate 36, the push rod 21 will push the arc surface of the semicircular plate 36 so that the semicircular plate 36 moves outward. When the semicircular plate 36 moves outward, the semicircular plate 36 drives the side fixed block 33 to move outward along the trajectory of the slot 31. When the fixed block 33 moves outward, the fixed block 33 squeezes the side spring 2 32. The spring 2 32 begins to contract after receiving the squeezing force from the fixed block 33. At the same time, when the fixed block 33 moves outward, the fixed block 33 drives the side fixed plate 34 to also start moving outward. When the fixed plate 34 moves outward, the fixed plate 34 drives the knocking rod 35 to also start moving outward.

[0034] like Figure 5As shown, the side of the semicircular plate 36 is on the motion trajectory of the push rod 21. This design changes the force transmission. The side of the fixing block 33 is in sliding connection with the inner wall of the notch 31, and the side of the fixing plate 34 does not contact the inner wall of the drying box 1. The side of the placement rack 14 is on the displacement trajectory of the knocking rod 35. This design enables the placement rack 14 to vibrate. The bottom of the fixing block 33 is in sliding connection with the bottom inner wall of the drying box 1, and the bottom of the semicircular plate 36 does not contact the bottom inner wall of the drying box 1. The width of the semicircular plate 36 is one centimeter less than the width of the fixing block 33.

[0035] According to the above structure, when the push rod 21 continues to rotate, the push rod 21 no longer pushes the arc surface of the semicircular plate 36, and the semicircular plate 36 begins to move inward through the elastic force of the spring 2 32 on the side of the fixed plate 34. When the fixed plate 34 moves inward, the fixed plate 34 drives the knocking rod 35 on the side to also start moving inward. When the knocking rod 35 moves inward, the knocking rod 35 knocks on the side of the placement rack 14, thereby preventing the sodium iodide crystals above the placement rack 14 from sticking, ensuring that the surface of the crystal is smooth and uniform, which helps to avoid damage or deformation of the crystal during removal or processing.

[0036] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A drying device for preparing sodium iodide crystals, characterized in that: The invention comprises a drying box (1), wherein a protective door (11) is hingedly connected to the side of the drying box (1), an air outlet pipe (12) is fixedly passed through the top of the drying box (1), a motor is fixedly connected to the bottom of the drying box (1), an output shaft of the motor is fixedly connected to a rotating shaft (13), an end of the rotating shaft (13) away from the motor is fixedly connected to a placement rack (14), and a uniform device (2) for uniform heating during the drying process is provided on the circumferential surface of the rotating shaft (13); The uniform device (2) includes a push rod (21), one end of the push rod (21) is fixedly connected to the circumferential surface of the rotating shaft (13), two slide grooves (22) are provided on the inner wall of the drying box (1), the bottom of the inner wall of the drying box (1) is fixedly connected to a spring 1 (23), one end of the spring 1 (23) away from the bottom of the inner wall of the drying box (1) is fixedly connected to a slider (24), the side of the slider (24) is slidably connected to the inner wall of the slide groove (22), the side of the slider (24) is fixedly connected to a connecting long plate (25), the side of the connecting long plate (25) is fixedly connected to a plurality of air pushing plates (26), the side of the connecting long plate (25) is fixedly connected to a connecting plate (27), the top of the connecting plate (27) is fixedly connected to an arc block (28), and the side of the arc block (28) is on the movement track of the push rod (21); The inner wall side of the drying box (1) is provided with a knocking device (3) for preventing the crystals from sticking during the drying process. The knocking device (3) comprises a notch (31), the notch (31) is opened on the side of the drying box (1), a spring 2 (32) is fixedly connected to the inner wall of the notch (31), an end of the spring 2 (32) away from the inner wall of the notch (31) is fixedly connected to a fixed block (33), a side of the fixed block (33) is fixedly connected to a fixed plate (34), a side of the fixed plate (34) is fixedly connected to a plurality of knocking rods (35), and a side of the fixed plate (34) is fixedly connected to a semicircular plate (36).

2. a sodium iodide crystal preparation drying device according to claim 1, is characterized in that: The bottom of the pushing rod (21) does not contact the inner wall of the drying box (1).

3. a sodium iodide crystal preparation drying device according to claim 2, is characterized in that: The air pushing plate (26) is configured as an inclined plate with an inclination angle of thirty-five degrees, and the side surface of the air pushing plate (26) does not contact the side surface of the placement rack (14).

4. a drying device for preparing sodium iodide crystals according to claim 3, characterized in that: The bottom of the placement rack (14) does not contact the bottom of the inner wall of the drying box (1), and the side of the connecting long plate (25) is slidably connected to the inner wall of the drying box (1).

5. a drying device for preparing sodium iodide crystals according to claim 4, characterized in that: The side surface of the semicircular plate (36) is on the motion track of the push rod (21), the side surface of the fixing block (33) is slidably connected to the inner wall of the notch (31), and the side surface of the fixing plate (34) does not contact the inner wall of the drying box (1).

6. A drying device for preparing sodium iodide crystals according to claim 5, characterized in that: The side surface of the placement rack (14) is located on the displacement track of the knocking rod (35), and the bottom of the fixing block (33) is slidably connected to the bottom of the inner wall of the drying box (1).

7. The scintillating crystal cutting device with a protective structure according to claim 6, characterized in that: The bottom of the semicircular plate (36) does not contact the bottom of the inner wall of the drying box (1), and the width of the semicircular plate (36) is one centimeter smaller than the width of the fixing block (33).

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