Karl Fischer reagent raw material mixing device

Abstract

The utility model discloses a Karl Fischer reagent raw material mixing device which comprises a box body, a material mixing barrel and a connecting frame, the box body is rotatably connected with a feeding hollow shaft and a discharging hollow shaft, the feeding hollow shaft and the discharging hollow shaft are coaxially arranged, and the feeding hollow shaft and the discharging hollow shaft are both communicated with the material mixing barrel and are eccentrically arranged. A rotating shaft is rotatably and slidably connected to the axis of the top end of the mixing barrel, a plurality of stirring rods are mounted on the rotating shaft, and a gear ring is mounted in the box body. The material mixing barrel and the sealing shaft are arranged in a matched mode, the eccentrically rotating material mixing barrel drives the sealing shaft to rotate so as to drive the rotating shaft to mix and stir raw materials, the rotating shaft can be driven to move up and down through the lifting frame, all the materials in the material mixing barrel can be mixed and stirred, and therefore the material mixing effect is good; through eccentric rotation of the material mixing barrel, the material mixing barrel can stir a water source in the box body, so that the water bath temperatures of all parts of the surface of the material mixing barrel are the same.

Description

Technical Field

[0001] This utility model relates to the technical field of Karl Fischer reagent raw material mixing device, and in particular to a Karl Fischer reagent raw material mixing device. Background Technology

[0002] The Karl Fischer method, or simply Fischer method, is a volumetric method for determining water content, proposed by Karl Fischer in 1935. Among various chemical methods for determining the water content of substances, the Fischer method is more specific and accurate for water. The Karl Fischer method belongs to the iodometric method, and its basic principle is that a certain amount of water is required for the oxidation of sulfur dioxide by iodine.

[0003] Existing Karl Fischer reagent mixing devices suffer from poor mixing effects and inconsistent temperatures across the surface of the mixing tank when the water bath temperature is balanced. Therefore, it is necessary to design a new Karl Fischer reagent mixing device. Utility Model Content

[0004] Therefore, it is necessary to provide a Karl Fischer reagent raw material mixing device to address the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides a Karl Fischer reagent raw material mixing device, including a housing, a mixing tank, and a connecting frame. A hollow inlet shaft and a hollow outlet shaft are rotatably connected to the housing, coaxially arranged. Both the inlet and outlet shafts are connected to the mixing tank and eccentrically positioned. A rotating shaft is rotatably and slidably connected to the top axis of the mixing tank, and several stirring rods are mounted on the rotating shaft. A gear ring is installed inside the housing, located outside the outlet hollow shaft and coaxially arranged. A sealing shaft is rotatably and sealingly connected to the bottom axis of the mixing tank. The box is equipped with gears, and the gear ring meshes with the gears. The rotating shaft is slidably engaged with the sealing shaft through a sealing engagement mechanism. An annular plate is rotatably sealed at the top of the box and connected to the rotating shaft. A rotary drive device is installed on the box, and the output end of the rotary drive device is connected to the feed hollow shaft. A lifting frame is also installed at the output end of the rotary drive device. Rotating block one is slidably engaged in the lifting frame, and rotating block two is slidably engaged in the annular plate. Rotating block one and rotating block two are rotatably mounted on the connecting frame. The box is provided with an inlet and an outlet. The inlet is connected to the refrigerant source.

[0006] Preferably, there are two rotary drive devices, which are symmetrically arranged, and the output end of one rotary drive device is connected to the feed hollow shaft.

[0007] Preferably, a bevel gear one is installed on the top of the housing, and a bevel gear two is installed on the hollow feed shaft. The bevel gear one and the bevel gear two are meshed and connected, and the output end of the rotary drive device is connected to the bevel gear one for transmission.

[0008] Preferably, an annular connecting frame is installed on the top of the box, and the two ends of the annular connecting frame are respectively connected to the inner and outer sides of the annular plate.

[0009] Preferably, the sealing and snapping mechanism includes a square snap block and a snap groove. The square snap block is installed at the bottom of the rotating shaft, and the snap groove is located on the sealing shaft. The square snap block is slidably and sealingly connected in the snap groove.

[0010] Preferably, valves are installed on both the inlet and outlet.

[0011] Compared with existing technologies, this technical solution has at least one of the following beneficial effects:

[0012] By using the combination of the mixing drum and the sealing shaft, the eccentrically rotating mixing drum drives the sealing shaft to rotate, thereby driving the rotating shaft to mix and stir the raw materials. Furthermore, the lifting frame can drive the rotating shaft to move up and down, so that the materials in all parts of the mixing drum can be mixed and stirred, resulting in a good mixing effect.

[0013] The eccentric rotation of the mixing drum allows it to agitate the water inside the tank, ensuring that the water bath temperature is uniform across the surface of the mixing drum. Attached Figure Description

[0014] Figure 1 This is a front sectional view of an embodiment of the present invention;

[0015] Figure 2 This is a bottom sectional view of an embodiment of the present invention;

[0016] Figure 3 This is an embodiment of the present utility model. Figure 1 Enlarged view of point A in the middle;

[0017] Figure 4 This is a partial perspective view of the lifting frame according to an embodiment of the present invention;

[0018] In the diagram, 1. Box body; 2. Mixing tank; 3. Hollow feed shaft; 4. Hollow discharge shaft; 5. Rotating shaft; 6. Stirring rod; 7. Gear ring; 8. Sealing shaft; 9. Gear; 10. Annular plate; 11. Rotary drive device; 12. Lifting frame; 13. Rotating block one; 14. Rotating block two; 15. Connecting frame; 16. Inlet; 17. Outlet; 18. Bevel gear one; 19. Bevel gear two; 20. Annular connecting frame; 21. Square locking block; 22. Locking groove; 23. Valve. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0020] Please see Figures 1 to 4 This application provides a Karl Fischer reagent raw material mixing device, including a housing 1, a mixing tank 2, and a connecting frame 15. A hollow inlet shaft 3 and a hollow outlet shaft 4 are rotatably and sealedly connected to the housing 1. The hollow inlet shaft 3 and the hollow outlet shaft 4 are coaxially arranged and communicate with the mixing tank 2, but are eccentrically positioned. A rotating shaft 5 is rotatably and slidably and sealedly connected to the top axis of the mixing tank 2. Several stirring rods 6 are mounted on the rotating shaft 5. A gear ring 7 is installed inside the housing 1, located outside the hollow outlet shaft 4 and coaxially arranged. A sealing shaft 8 is rotatably and sealedly connected to the bottom axis of the mixing tank 2. A gear 9 is mounted on the sealing shaft 8, and the gear ring 7 meshes with the gear 9. The rotating shaft 5 communicates with the mixing tank 2. The sealing snap-fit ​​mechanism is slidably snap-fitted with the sealing shaft 8. The top of the box 1 is rotatably sealed with an annular plate 10, which is connected to the rotating shaft 5. A rotary drive device 11 is installed on the box 1. The rotary drive device 11 can be a motor. The output end of the rotary drive device 11 is connected to the feed hollow shaft 3. The output end of the rotary drive device 11 is also equipped with a lifting frame 12. A rotating block 13 is slidably snap-fitted inside the lifting frame 12. A rotating block 2 14 is slidably snap-fitted inside the annular plate 10. Both rotating block 13 and rotating block 2 14 are rotatably mounted on the connecting frame 15. The box 1 is provided with an inlet 16 and an outlet 17. The input end of the inlet 16 is connected to a refrigerant source, which can be a low-temperature water source.

[0021] In this embodiment, the material enters the mixing drum 2 through the feeding hollow shaft 3. The rotating drive device 11 drives the feeding hollow shaft 3 to rotate, causing the mixing drum 2 to rotate eccentrically around the feeding hollow shaft 3. The rotating mixing drum 2 agitates the refrigerant source in the housing 1, ensuring that the refrigerant source entering from the inlet 16 in the housing 1 can exchange heat with the mixing drum 2 before flowing out from the outlet 17. Simultaneously, the eccentrically rotating mixing drum 2, through the meshing of the gear 9 on the sealing shaft 8 and the gear ring 7 coaxially arranged on the discharge hollow shaft 4, drives the sealing shaft 8 to rotate. This, in turn, drives the rotating shaft 5 to rotate through the sealing snap-fit ​​mechanism, allowing the several stirring shafts 6 on the rotating shaft 5 to agitate the material in the mixing drum 2. While stirring, the rotary drive device 11 drives the feed hollow shaft 3 to rotate, which also drives the lifting frame 12 to rotate. Therefore, by sliding the rotating block 13, which is slidably engaged with the lifting frame 12, at different heights in the groove on the lifting frame 12, the rotating block 14 can be driven to move up and down through the connecting frame 15, thereby driving the annular plate 10 and the rotating shaft 5 at its bottom to move up and down. This allows the rotating shaft 5 to drive the stirring shaft 6 to perform mixing and stirring work in all parts of the mixing tank 2. Moreover, the rotating block 13, the rotating block 14 and the connecting frame 15 are all rotatably connected, so that when the rotating shaft 5 drives the annular plate 10 to rotate and the lifting frame 12 to rotate, they can be balanced. Finally, after the mixing is completed, the material is discharged from the discharge hollow shaft 4.

[0022] In some embodiments, to improve the stability of the lifting frame 12 driving the annular plate 10 to move up and down, two rotary drive devices 11 are provided, which are symmetrically arranged. The output end of one rotary drive device 11 is connected to the feed hollow shaft 3. Thus, the two rotary drive devices 11 lift the annular plate 10 from both sides, improving its stability.

[0023] In some embodiments, to facilitate the rotation of the feed hollow shaft 3 by the rotary drive device 11, a bevel gear 18 is rotatably mounted on the top of the housing 1, and a bevel gear 19 is mounted on the feed hollow shaft 3. The bevel gear 18 and the bevel gear 19 are meshed and connected, and the output end of the rotary drive device 11 is connected to the bevel gear 18 for transmission.

[0024] In some embodiments, to improve the connection stability between the two sides of the annular plate 10, an annular connecting frame 20 is installed on the top of the housing 1, with the two ends of the annular connecting frame 20 connected to the inner and outer sides of the annular plate 10 respectively.

[0025] In some embodiments, in order to facilitate the sliding engagement effect between the rotating shaft 5 and the sealing shaft 8, so that the sealing shaft 8 can drive the rotating shaft 5 to rotate, a sealing engagement mechanism is provided, including a square block 21 and a slot 22. The square block 21 is installed at the bottom of the rotating shaft 5, and the slot 22 is provided on the sealing shaft 8. The square block 21 is slidably and sealingly connected in the slot 22.

[0026] In some embodiments, valves 23 are installed on both the inlet 16 and the outlet 17 to facilitate control of the water bath temperature by controlling the speed at which the refrigerant source enters.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A Karl Fischer reagent raw material mixing device, comprising a housing (1), a mixing tank (2), and a connecting frame (15), characterized in that, The box body (1) is rotatably connected to a hollow feed shaft (3) and a hollow discharge shaft (4). The hollow feed shaft (3) and the hollow discharge shaft (4) are coaxially arranged. The hollow feed shaft (3) and the hollow discharge shaft (4) are both connected to the mixing tank (2) and are eccentrically arranged. A rotating shaft (5) is rotatably and slidably connected to the top axis of the mixing tank (2). Several stirring rods (6) are installed on the rotating shaft (5). A gear ring (7) is installed inside the box body (1). The gear ring (7) is located outside the hollow discharge shaft (4) and is coaxially arranged. A sealing shaft (8) is rotatably and sealingly connected to the bottom axis of the mixing tank (2). A gear (9) is installed on the sealing shaft (8). The gear ring (7) meshes with the gear (9). The rotating shaft (5) is connected to the sealing shaft (8) through a sealing snap-fit ​​mechanism. The sealing shaft (8) is slidably snapped, and the top of the box (1) is rotatably sealed with an annular plate (10). The annular plate (10) is connected to the rotating shaft (5). A rotary drive device (11) is installed on the box (1). The output end of the rotary drive device (11) is connected to the feed hollow shaft (3). A lifting frame (12) is also installed at the output end of the rotary drive device (11). A rotating block one (13) is slidably snapped in the lifting frame (12). A rotating block two (14) is slidably snapped in the annular plate (10). Both rotating block one (13) and rotating block two (14) are rotatably installed on the connecting frame (15). The box (1) is provided with an inlet (16) and an outlet (17). The input end of the inlet (16) is connected to the refrigerant source.

2. The Karl Fischer reagent raw material mixing apparatus according to claim 1, characterized in that, The number of the rotary drive devices (11) is two, and the two rotary drive devices (11) are symmetrically arranged. The output end of one rotary drive device (11) is connected to the feed hollow shaft (3) for transmission.

3. The Karl Fischer reagent raw material mixing apparatus according to claim 2, characterized in that, The top of the housing (1) is rotatably mounted with a bevel gear one (18), and a bevel gear two (19) is mounted on the feed hollow shaft (3). The bevel gear one (18) and the bevel gear two (19) are meshed and connected. The output end of the rotary drive device (11) is connected to the bevel gear one (18) for transmission.

4. The Karl Fischer reagent raw material mixing apparatus according to claim 1, characterized in that, The top of the box (1) is equipped with an annular connecting frame (20), and the two ends of the annular connecting frame (20) are respectively connected to the inner and outer sides of the annular plate (10).

5. The Karl Fischer reagent raw material mixing apparatus according to claim 1, characterized in that, The sealing and snapping mechanism includes a square snap block (21) and a snap groove (22). The square snap block (21) is installed at the bottom of the rotating shaft (5), and the snap groove (22) is located on the sealing shaft (8). The square snap block (21) is slidably and sealingly connected in the snap groove (22).

6. The Karl Fischer reagent raw material mixing apparatus according to claim 1, characterized in that, Valves (23) are installed on both the inlet (16) and outlet (17).

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