Lifting, stirring and drying device for solid sample

Abstract

The utility model discloses a solid sample lifting, stirring and drying device which comprises a drying container, and a sample drying vessel is arranged in the drying container. The stirring shaft and the lifting driving shaft extend into the sample drying vessel from the top of the drying container, a movable stirring assembly is arranged on the stirring shaft in an axial movement fit mode, and the lifting driving shaft is in driving connection with the movable stirring assembly; while the stirring shaft drives the movable stirring assembly to rotate, the lifting driving shaft drives the movable stirring assembly to do lifting reciprocating motion. Solid samples are stirred through the movable stirring assembly capable of ascending and descending along the stirring shaft, evaporation of moisture contained in the solid samples is promoted, and the drying efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of solid sample drying equipment, and particularly relates to a lifting and stirring drying device for solid samples. Background Art

[0002] Muffle furnaces are widely used in the drying process of solid samples. They have a wide temperature adjustment range and accurate time control, and are generally the preferred equipment for solid sample drying operations. However, due to the lack of a stirring mechanism for stirring solid samples in the heating furnace, there is a problem of long drying time during drying operations, and the evaporation rate of moisture contained in solid samples is slow, which affects the drying efficiency. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the utility model provides a lifting and stirring drying device for solid samples, which stirs the solid samples through a movable stirring component that can move up and down along the stirring shaft, promotes the evaporation of moisture contained in the solid samples, and improves the drying efficiency.

[0004] Technical Solution: To achieve the above object, a lifting and stirring drying device for solid samples of the utility model includes a drying container, and a sample drying dish is arranged inside the drying container; it includes a stirring shaft and a lifting drive shaft that extend from the top of the drying container into the sample drying dish. An active stirring component is arranged on the stirring shaft in a shaft-sliding fit manner, and the lifting drive shaft is drivingly connected to the active stirring component; while the stirring shaft drives the active stirring component to rotate, the lifting drive shaft drives the active stirring component to move up and down reciprocally.

[0005] Further, the lifting drive shaft is a screw rod threadedly connected to the active stirring component, and the forward and reverse rotation of the screw rod drives the rotating active stirring component to move axially back and forth along the lifting drive shaft.

[0006] Further, the axes of the stirring shaft and the lifting drive shaft are arranged in parallel, and the same-side power input shaft ends of the stirring shaft and the lifting drive shaft are connected with a gear set in tooth engagement, and the stirring shaft and the lifting drive shaft are connected and cooperated through the gear set.

[0007] Further, it includes a rotation drive part, and the rotation drive part is drivingly connected to the stirring shaft or the lifting drive shaft.

[0008] Further, a fixed stirring component is also arranged on the stirring shaft, and the fixed stirring component is located at the lower shaft end of the stirring shaft, so that the fixed stirring component corresponds to the inner bottom of the sample drying dish.

[0009] Further, the active stirring component and the fixed stirring component have the same structure, and both are composed of stirring blades arranged in an array on the outer circumference of a stirring blade cylinder seat, where:

[0010] A limiting through groove is formed inside the stirring blade cylinder base of the movable stirring assembly, and a limiting protrusion extending axially is arranged on the stirring shaft. The movable stirring assembly is circumferentially limited relative to the stirring shaft by the limiting protrusion being engaged in the limiting through groove;

[0011] The fixed stirring assembly is fixedly installed relative to the stirring shaft through a positioning pin on its stirring blade cylinder base, and the stirring blade of the fixed stirring assembly scrapes and contacts the inner bottom of the sample drying dish.

[0012] Furthermore, a container cover is arranged at the top of the drying container through a lifting mechanism. The stirring shaft, the lifting drive shaft, the gear set, and the rotation drive part are all located on the container cover. The lifting mechanism drives the container cover to move up and down to open and close the drying container.

[0013] Beneficial effects: The utility model stirs the solid sample through the movable stirring assembly that can lift along the stirring shaft, which can expand the stirring range, make the solid samples with different temperatures disperse more evenly, thereby promoting the uniform and rapid evaporation of the moisture contained in the solid samples, shortening the drying operation working hours, and greatly improving the drying efficiency. Description of the Drawings

[0014] Att Figure 1 is a schematic diagram of the overall structure of the utility model;

[0015] Att Figure 2 is a schematic diagram of the structure of the stirring shaft, the lifting drive shaft and the stirring components;

[0016] Att Figure 3 is Att Figure 2 a schematic enlarged view of the structure of area A in Att; Detailed Embodiments

[0017] The following further describes the utility model with reference to the drawings.

[0018] As shown in Att Figure 1 and Att Figure 2 , a lifting stirring drying device for solid samples includes a drying container 1, and a sample drying dish 2 is arranged inside the drying container 1; it includes a stirring shaft 3 and a lifting drive shaft 4 extending from the top of the drying container 1 into the sample drying dish 2. A movable stirring assembly 5 is arranged on the stirring shaft 3 in axial displacement fit, and the lifting drive shaft 4 is drivingly connected to the movable stirring assembly 5; while the stirring shaft 3 drives the movable stirring assembly 5 to rotate, the lifting drive shaft 4 drives the movable stirring assembly 5 to move up and down reciprocally. The utility model stirs the solid sample through the movable stirring assembly 5 that can lift along the stirring shaft 3, which can expand the stirring range, make the solid samples with different temperatures disperse more evenly, thereby promoting the uniform and rapid evaporation of the moisture contained in the solid samples, shortening the drying operation working hours, and greatly improving the drying efficiency.

[0019] As shown in the attached Figure 1 or the attached Figure 2 As shown, in the present utility model, preferably, the lifting drive shaft 4 is a screw rod threadedly connected to the movable stirring assembly 5. The forward and reverse rotation of the screw rod drives the rotating movable stirring assembly 5 to reciprocate axially along the lifting drive shaft 4.

[0020] As shown in the attached Figure 1 or the attached Figure 2 As shown, the stirring shaft 3 is arranged parallel to the axis of the lifting drive shaft 4. The same-side power input shaft ends of the stirring shaft 3 and the lifting drive shaft 4 are connected with a gear set 6 in tooth engagement. The stirring shaft 3 and the lifting drive shaft 4 are in transmission connection and cooperation through the gear set 6. The present utility model includes a rotation drive part 7, and the rotation drive part 7 is drivingly connected to the stirring shaft 3 or the lifting drive shaft 4. After the stirring shaft 3 and the lifting drive shaft 4 are in transmission connection, only one rotation drive part 7 is needed to provide power, and there is no need to separately set power input devices for the stirring shaft 3 and the lifting drive shaft 4, so as to ensure reasonable drive distribution and reduce the input cost at the same time.

[0021] Among them, the rotation drive part 7 adopts a servo motor, which has the advantages of high precision and easy control.

[0022] As shown in the attached Figure 1 As shown, in order to avoid the phenomenon that solid samples agglomerate at the inner bottom of the sample drying dish 2, in the present utility model, a fixed stirring assembly 8 is further arranged on the stirring shaft 3. The fixed stirring assembly 8 is located at the lower shaft end of the stirring shaft 3, so that the fixed stirring assembly 8 corresponds to the inner bottom of the sample drying dish 2, thereby stirring the solid samples in the inner bottom area of the sample drying dish 2 through the fixed stirring assembly 8 to avoid agglomeration and sticking to the bottom.

[0023] As shown in the attached Figure 2 and the attached Figure 3 As shown, the movable stirring assembly 5 and the fixed stirring assembly 8 have the same structure, and are both composed of stirring blade barrel seats 58a with stirring blades 58b arranged in an array on the outer circumference. Among them: a limiting through groove 50 is formed inside the stirring blade barrel seat 58a of the movable stirring assembly 5, and a limiting protrusion 31 extending axially is arranged on the stirring shaft 3. The movable stirring assembly 5 is circumferentially limited relative to the stirring shaft 3 by the limiting protrusion 31 falling into the limiting through groove 50; the fixed stirring assembly 8 is fixedly installed relative to the stirring shaft 3 through a positioning pin 9 on its stirring blade barrel seat 58a, and the stirring blades 58b of the fixed stirring assembly 8 are in scraping contact with the inner bottom of the sample drying dish 2.

[0024] As shown in the attached Figure 1As shown in the figure, a container cover 11 is provided at the top of the drying container 1 through a lifting mechanism 10. The stirring shaft 3, the lifting drive shaft 4, the gear set 6 and the rotation drive part 7 are all located on the container cover 11. The lifting mechanism 10 drives the container cover 11 to move up and down to open and close the drying container 1. The lifting mechanism 10 can be an electric push rod or a hydraulic push rod.

[0025] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A lifting, stirring and drying device for solid samples, comprising a drying container (1), wherein the drying container (1) has a built-in sample drying dish (2); characterized in that: The invention comprises a stirring shaft (3) and a lifting drive shaft (4) extending from the top of a drying container (1) into a sample drying dish (2); a movable stirring component (5) is provided on the stirring shaft (3) in a shaft-shifting manner; the lifting drive shaft (4) is drivingly connected to the movable stirring component (5); while the stirring shaft (3) drives the movable stirring component (5) to rotate, the lifting drive shaft (4) drives the movable stirring component (5) to move up and down and reciprocate.

2. The lifting, stirring and drying device for solid samples according to claim 1, characterized in that: The lifting drive shaft (4) is a screw connected to the movable stirring component (5) by threading, and the screw switches between forward and reverse directions to drive the rotating movable stirring component (5) to reciprocate along the axial direction of the lifting drive shaft (4).

3. The lifting, stirring and drying device for solid samples according to claim 2, characterized in that: The stirring shaft (3) and the lifting drive shaft (4) are arranged parallel to each other; the power input shaft ends on the same side of the stirring shaft (3) and the lifting drive shaft (4) are connected to a gear set (6) with meshing teeth; and the stirring shaft (3) and the lifting drive shaft (4) are connected and matched in a transmission manner through the gear set (6).

4. The lifting, stirring and drying device for solid samples according to claim 3, characterized in that: It comprises a rotating drive unit (7), wherein the rotating drive unit (7) is drivingly connected to the stirring shaft (3) or the lifting drive shaft (4).

5. The lifting, stirring and drying device for solid samples according to claim 4, characterized in that: The stirring shaft (3) is also provided with a fixed stirring component (8), which is located at the lower shaft end of the stirring shaft (3) so that the fixed stirring component (8) is arranged corresponding to the inner bottom of the sample drying dish (2).

6. The lifting, stirring and drying device for solid samples according to claim 5, characterized in that: The movable stirring assembly (5) has the same structure as the fixed stirring assembly (8), and is composed of stirring blades (58b) arranged in an array on the periphery of a stirring blade cartridge seat (58a), wherein: A limiting groove (50) is provided on the inner side of the stirring blade cylinder seat (58a) of the movable stirring assembly (5), and an axially extending limiting protrusion (31) is provided on the stirring shaft (3), and the limiting protrusion (31) is sunk into the limiting groove (50), thereby limiting the movable stirring assembly (5) circumferentially relative to the stirring shaft (3); The fixed stirring assembly (8) is fixedly mounted relative to the stirring shaft (3) via a positioning pin (9) on its stirring blade cylinder seat (58a), and the stirring blade (58b) of the fixed stirring assembly (8) is in scraping contact with the inner bottom of the sample drying dish (2).

7. A lifting, stirring and drying device for solid samples according to any one of claims 1 to 6, characterized in that: The top of the drying container (1) is provided with a container cover (11) via a lifting mechanism (10); the stirring shaft (3), the lifting drive shaft (4), the gear set (6) and the rotary drive unit (7) are all located on the container cover (11); the lifting mechanism (10) drives the container cover (11) to move up and down to open and close the drying container (1).

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