Experimental QPQ salt bath device

Abstract

An experimental QPQ salt bath device relates to the technical field of salt bath equipment, and adopts the technical scheme that the experimental QPQ salt bath device comprises a crucible and a salt pumping device, the bottom surface of an inner cavity of the crucible is a downwards sunken curved surface, and an annular supporting shoulder is further arranged at the top of the crucible; the salt pumping device comprises a cylindrical support arranged on the supporting shoulder, a sliding sleeve is arranged in the center of the cylindrical support and slidably connected with a salt pumping pipe, the first end of the salt pumping pipe faces the curved surface, and a salt pumping opening is formed in the outer wall of the first end; one end of the compressed air pipe is connected to an air compressor through a flexible pipeline, and the other end of the compressed air pipe extends into the salt pumping pipe from the first end of the salt pumping pipe. The salt pumping device is used for pumping most of molten salt, the bottom face of the crucible is optimized to be the downwards-sunken curved face, residual molten salt is gathered to the lowest position, cleaning is facilitated, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a QPQ salt bath device for experiments. Background Art

[0002] The crucibles used in traditional QPQ production are basically flat-bottomed crucibles. During the production process, the crucibles are used for a long time, and the frequency of replacing the molten salt inside is not high. The molten salt inside will only be taken out when the salt is damaged or the crucible leaks. However, during experiments, it is necessary to frequently change the type of salt. The molten salt in the crucible is often scooped out with a long spoon. The flat-bottomed crucible has the problem that the salt at the bottom cannot be scooped out cleanly. After each scooping of salt, it is necessary to soak the salt with water and clean it before the next experiment can be carried out. This takes a long time and has low efficiency. If it is not cleaned cleanly, it will affect the next experiment. Summary of the Utility Model

[0003] In view of the problem of low efficiency in taking out the molten salt in the crucible during experiments in the prior art solutions, the utility model provides a QPQ salt bath device for experiments.

[0004] The utility model provides the following technical solutions: A QPQ salt bath device for experiments, comprising:

[0005] A crucible, the bottom surface of the inner cavity of the crucible is a downwardly concave curved surface, and a circular support shoulder is further provided at the top of the crucible;

[0006] A salt pumping device, comprising a cylindrical bracket placed on the support shoulder, a sliding sleeve is provided in the center of the cylindrical bracket, a salt pumping pipe is slidably connected to the sliding sleeve, the first end of the salt pumping pipe faces the curved surface, and a salt pumping port is provided on the outer wall of the first end; A compressed air pipe is further provided on the salt pumping pipe, one end of the compressed air pipe is connected to an air compressor through a flexible pipe, and the other end extends into the salt pumping pipe from the first end of the salt pumping pipe and extends to the top of the salt pumping pipe.

[0007] Preferably, the support shoulder is further provided with an anti-overflow ring extending upward above the crucible.

[0008] Preferably, the cylindrical bracket cooperates with the anti-overflow ring.

[0009] Preferably, the crucible and the cylindrical bracket are both provided with hanging rings.

[0010] Preferably, the salt pumping pipe is in an inverted U shape or an inverted V shape.

[0011] The beneficial effects of the utility model are: The salt pumping device is used to suck most of the molten salt, and the bottom surface of the crucible is optimized to be a downwardly concave curved surface, and the residual molten salt converges to the lowest point, which is beneficial to cleaning and improves the cleaning efficiency; The oxidation slag generated during the production process will also deposit at the bottom of the curved surface, making the distance between the product and the oxidation slag farther than that of the flat-bottomed crucible, and the quality of the product at the lower part of the crucible is better. Brief Description of the Drawings

[0012] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the crucible.

[0013] Figure 2 It is a sectional view of an embodiment of the crucible.

[0014] Figure 3 It is a schematic diagram of an embodiment of the salt extraction device.

[0015] Reference numerals: 10, crucible; 11, curved surface; 12, support shoulder; 13, overflow prevention ring; 14, lifting ring; 21, cylindrical support; 22, sliding sleeve; 23, salt extraction pipe; 24, salt extraction port; 25, compressed air pipe; 26, flexible pipe. Detailed Description of the Embodiment

[0016] The following further describes the embodiments of the present invention in detail with reference to the drawings and reference numerals, so that those skilled in the art can implement it after studying this specification. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] The present invention provides an experimental QPQ salt bath device as shown in Figures 1-3 which includes a crucible 10 and a salt extraction device for extracting the molten salt in the crucible 10.

[0018] The crucible 10 has an inner cavity for loading molten salt, the top of the inner cavity is open, and the bottom surface of the inner cavity is a downwardly concave curved surface 11, such as a spherical surface or a conical surface. Compared with the flat-bottom crucible in the prior art, after most of the molten salt is taken out, the remaining molten salt will automatically converge to the bottom of the curved surface 11, which is more conducive to cleaning the molten salt, and there is no need to soak it in water to remove salt, improving the efficiency. At the same time, the oxidation slag generated during the trial production process will also deposit at the bottom of the curved surface 11, making the distance between the product and the oxidation slag farther than that of the flat-bottom crucible, and the quality of the product at the lower part of the crucible is better. A circular support shoulder 12 is further provided at the top of the crucible 10, and an overflow prevention ring 13 extending upward above the crucible 10 is also provided on the support shoulder 12 to prevent the molten salt from overflowing; two lifting rings 14 are also provided on the support shoulder 12 for easy lifting.

[0019] The salt extraction device includes a cylindrical support 21. The cylindrical support 21 can be a cylindrical mesh frame made of steel bars. When it is placed on the support shoulder 12 in cooperation with the anti-overflow ring 13, the anti-overflow ring 13 can play a positioning role for the cylindrical support 21. The cylindrical support 21 is also provided with a lifting ring. A sliding sleeve 22 is arranged in the center of the cylindrical support 21. The sliding sleeve 22 is slidably connected with a salt extraction pipe 23, and can adjust the relative height between the first end of the salt extraction pipe 23 facing the curved surface 11 and the cylindrical support 21 within a certain range to adapt to crucibles of different depths, so that the first end of the salt extraction pipe 23 can extend to the lowest point of the curved surface 11. A salt extraction port 24 is also arranged on the outer wall of the first end. The molten salt enters the salt extraction pipe 23 from the salt extraction port 24. The salt extraction pipe 23 can be an inverted U-shaped or inverted V-shaped pipe, and its second end extends outside the crucible, and a container is placed at the bottom of the second end to receive the extracted molten salt.

[0020] The salt extraction pipe 23 is also provided with a compressed air pipe 25. One end of the compressed air pipe 25 is connected to an air compressor through a flexible pipe 26, so that when the compressed air pipe 25 moves with the salt extraction pipe 23, it does not affect its connection with the air compressor, and the other end of the compressed air pipe 25 extends into the salt extraction pipe 23 from the first end of the salt extraction pipe 23 and extends upward along the axial direction of the salt extraction pipe 23. The salt extraction pipe 23 is in an inverted U shape or an inverted V shape, and the compressed air pipe 25 can extend to near the top of the salt extraction pipe 23, and the salt extraction pipe 23 has a downward inclination after passing over its top, which is conducive to the self-flow of the molten salt out.

[0021] When it is necessary to extract the molten salt in the crucible, the salt extraction device is hoisted onto the crucible 10. The bottom of the cylindrical support 21 is clamped into the anti-overflow ring 13, and the first end of the salt extraction pipe 23 abuts against the lowest point of the curved surface 11. Then the flexible pipe 26 is connected to the compressed air pipe 25, and compressed gas is introduced into the salt extraction pipe 23, and its pressure is set to 0.5 - 1.5 MPa. The compressed gas jets out at high speed from the salt extraction pipe 23, forming a negative pressure in the salt extraction pipe 23. The molten salt in the crucible is extruded by the atmospheric pressure into the salt extraction pipe 23 and then flows out from the second end. After most of the molten salt is extracted by the salt extraction device, the remaining molten salt gathered at the lowest point of the curved surface 11 can be manually cleaned with a long spoon, and finally the remaining amount of molten salt is much less than that of a flat-bottom crucible.

[0022] The above are one or more embodiments of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. An experimental QPQ salt bath device, characterized in that, Comprising: A crucible, the bottom surface of the inner cavity of the crucible being a downwardly concave curved surface, and an annular support shoulder being further provided at the top of the crucible; A salt extraction device, comprising a cylindrical support bracket placed on the support shoulder, a sliding sleeve being provided in the center of the cylindrical support bracket, a salt extraction pipe being slidably connected to the sliding sleeve, a first end of the salt extraction pipe facing the curved surface, and a salt extraction port being provided on the outer wall of the first end; a compressed air pipe is further provided on the salt extraction pipe, one end of the compressed air pipe being connected to an air compressor through a flexible pipe, and the other end extending into the salt extraction pipe from the first end of the salt extraction pipe and extending to the top of the salt extraction pipe.

2. The QPQ salt bath device for experiments according to claim 1, characterized in that, The support shoulder is further provided with an anti-overflow ring extending upward above the crucible.

3. An experimental QPQ salt bath device according to claim 2, characterized in that, The cylindrical support bracket cooperates with the anti-overflow ring.

4. The QPQ salt bath device for experiments according to claim 1, characterized in that, The crucible and the cylindrical support bracket are both provided with lifting rings.

5. An experimental QPQ salt bath device according to claim 1, characterized in that, The salt extraction pipe is in an inverted U shape or an inverted V shape.

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