CN215464322U - Secondary sodium purification device - Google Patents
Secondary sodium purification device Download PDFInfo
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- CN215464322U CN215464322U CN202121805557.4U CN202121805557U CN215464322U CN 215464322 U CN215464322 U CN 215464322U CN 202121805557 U CN202121805557 U CN 202121805557U CN 215464322 U CN215464322 U CN 215464322U
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- sodium
- reaction kettle
- collecting cover
- pipe
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Abstract
The utility model discloses a secondary sodium purification device, which is used for solving the problems that secondary sodium is high in purification cost and is reduced to waste because no mature equipment is used for treatment in the prior art. The method comprises the following steps: the upper part of the reaction kettle is open, a sodium collecting cover is arranged, the sodium collecting cover is in an inverted hopper shape, the edge of the bottom of the sodium collecting cover is flush and extends into the reaction kettle, the top opening of the sodium collecting cover is communicated with the lower end of a sodium ascending pipe, and a liquid outlet at the upper part of the sodium ascending pipe is connected with a sodium storage tank; a gap is reserved between the bottom of the sodium collecting cover and the opening of the reaction kettle, a feeding pipe and a supplementing pipe are further arranged on the sodium collecting cover, the feeding pipe is used for feeding secondary sodium into the reaction kettle, and the supplementing pipe is used for feeding molten sodium chloride into the reaction kettle; one end of the siphon pipe extends into the bottom of the reaction kettle, and the other end of the siphon pipe is arranged outside the reaction kettle. The device has the advantages of simple structure, ingenious design, high recovery rate, relatively easy technical process, small equipment investment and high safety requirement.
Description
The technical field is as follows:
the utility model relates to the technical field of mechanical manufacturing process and equipment, in particular to a secondary sodium purification device.
Background art:
the purity of metallic sodium as a commercial product is 99.5% or more, but secondary sodium is produced in the production process at about 3%, and the purity of secondary sodium is about 70%. The secondary sodium is metal sodium except for about 70 percent, and the rest is metal calcium, the structures of the two metal elements are relatively close, and the two metal elements are required to be intervened and symbiotically generated in the production process of the metal sodium. Although referred to as secondary sodium, there is virtually no commercial market, failing to be a hazardous waste that is difficult to eliminate. At present, no mature complete equipment is available for treating secondary sodium, the risk coefficient of secondary sodium treatment is large, the labor intensity of personnel is high, the purification cost is high, the process is complex, and the equipment and facilities are also large in investment.
The utility model has the following contents:
the utility model provides a secondary sodium purification device, which is used for solving the problems that secondary sodium is high in purification cost and cannot be treated by mature equipment to cause secondary sodium to be reduced to waste in the prior art.
A secondary sodium purification apparatus comprising: the device comprises a reaction kettle, a feeding pipe, a sodium collecting cover, a sodium ascending pipe, a sodium storage tank, a siphon and a replenishing pipe; the upper part of the reaction kettle is open, a sodium collecting cover is arranged, the sodium collecting cover is in an inverted hopper shape, the edge of the bottom of the sodium collecting cover is flush and extends into the reaction kettle, the top opening of the sodium collecting cover is communicated with the lower end of a sodium ascending pipe, and a liquid outlet at the upper part of the sodium ascending pipe is connected with a sodium storage tank; a gap is reserved between the bottom of the sodium collecting cover and the opening of the reaction kettle, a feeding pipe and a supplementing pipe are further arranged on the sodium collecting cover, the feeding pipe is used for feeding secondary sodium into the reaction kettle, and the supplementing pipe is used for feeding molten sodium chloride into the reaction kettle; one end of the siphon pipe extends into the bottom of the reaction kettle, and the other end of the siphon pipe is arranged outside the reaction kettle.
Preferably, the reaction kettle is a metal reaction kettle, and an electric heating device is arranged on the outer wall of the reaction kettle.
Preferably, the secondary sodium purification device further comprises: a propeller; the propeller shell is a hollow cylindrical tube, a mounting hole is formed in the middle of the sodium collecting cover, the propeller penetrates through the mounting hole, the lower end of the propeller stretches into the sodium collecting cover and is directly communicated into the reaction kettle, the upper end of the propeller and the power device are located on the upper portion of the sodium collecting cover, a rotating shaft is arranged on the central axis of the shell and is driven by the power device, a pair of spiral blades is arranged at the bottom end of the rotating shaft, and the upper portion of the propeller shell is connected with the supplementing pipe.
Preferably, the power device comprises a motor and a speed reducer.
Preferably, a control valve is arranged on a pipeline of the siphon extending out of the reaction kettle. Preferably, the sodium collecting cover is erected on the reaction kettle through a bracket.
The beneficial effects of the utility model include: the secondary sodium purification device disclosed by the utility model is simple in structure, ingenious in design, high in recovery rate, relatively easy in process, small in equipment investment and high in safety requirement.
Description of the drawings:
FIG. 1 is a schematic sectional view of a secondary sodium purification apparatus according to a preferred embodiment.
The specific implementation mode is as follows:
in view of the above, the present invention provides a secondary sodium purification device, and the following description is made with reference to the accompanying drawings.
Referring to fig. 1, a secondary sodium purification apparatus includes: the device comprises a reaction kettle 1, a feeding pipe 3, a sodium collecting cover 4, a sodium ascending pipe 5, a sodium storage tank 6, a siphon pipe 9 and a replenishing pipe 8; the upper part of the reaction kettle 1 is open, a sodium collecting cover 4 is arranged, the sodium collecting cover 4 is in an inverted hopper shape, the edge of the bottom of the sodium collecting cover 4 is flush and extends into the reaction kettle 1, the top opening of the sodium collecting cover is communicated with the lower end of a sodium ascending pipe 5, and a liquid outlet at the upper part of the sodium ascending pipe 5 is connected to a sodium storage tank 6; a gap is reserved between the bottom of the sodium collecting cover 4 and the opening of the reaction kettle 1, a feeding pipe 3 and a supplementing pipe 8 are further arranged on the sodium collecting cover 4, the feeding pipe 3 is used for feeding secondary sodium into the reaction kettle 1, and the supplementing pipe 8 is used for feeding molten sodium chloride into the reaction kettle 1; one end of the siphon 9 extends into the bottom of the reaction kettle 1, and the other end is arranged outside the reaction kettle 1.
Specifically, in the secondary sodium purification device, the reaction kettle 1 is a metal reaction kettle 1, and the outer wall of the reaction kettle is provided with an electric heating device 2. The reaction kettle 1 can be a hollow uncovered cylinder, the sodium collection cover 4 matched with the hollow uncovered cylinder is similar to an inverted funnel shape in shape, and if the reaction kettle 1 is in other shapes, the shape of the lower half part of the sodium collection cover 4 is also similar to the shape of an opening above the reaction kettle 1; the following is introduced in detail by taking the shape of the reaction kettle 1 as a cylinder, the lower half part of the sodium collecting cover 4 is a cylinder, namely, a circular ring shape, a gap of 2-3cm is formed between the outer wall of the circular ring and the inner wall of the reaction kettle 1, the upper half part of the sodium collecting cover 4 is an inclined plane, the highest part is closed up and is the same as the bottom caliber of the sodium ascending tube 5, the sodium ascending tube 5 is used as a channel for ascending liquid sodium, and the upper part of the sodium ascending tube is provided with a liquid outlet which is communicated with the sodium storage tank 6 through a pipeline. The sodium collecting cover 4 is erected on the reaction kettle 1 in a high altitude mode through a support. And the lower part of the sodium collection cage 4 is horizontally below the liquid level.
The sodium collecting cover 4 is also provided with a feeding pipe 3 for adding secondary sodium into the reaction kettle 1. The sodium collecting cover 4 is also provided with a propeller 7; the central position of the collecting cover is located, the shell of the propeller 7 is in a hollow cylindrical shape, the middle part of the sodium collecting cover 4 is provided with a mounting hole, the propeller 7 penetrates through the mounting hole, the lower end of the propeller extends into the sodium collecting cover 4 to directly penetrate into the reaction kettle 1, the upper end of the propeller and the power device are located on the upper part of the sodium collecting cover 4, the central shaft of the shell is provided with a rotating shaft, the rotating shaft is driven by the power device, the bottom end of the rotating shaft is provided with a pair of helical blades, and the upper part of the shell of the propeller 7 is connected with a supplementing pipe 8. The propeller 7 is a device for forced circulation in the reaction, and can accelerate the reaction.
The power device of the forced propeller 7 comprises a motor and a speed reducer. The motor drives the rotating shaft of the propeller 7 to rotate through the speed reducer, and liquid circulation is pushed through the spiral blade.
The reaction kettle 1 is also provided with a siphon 9, one end of the siphon 9 extends into the bottommost part of the reaction kettle 1, the other end of the siphon 9 extends out of the reaction kettle 1, and a control valve is arranged on a pipeline of the siphon 9 extending out of the reaction kettle 1.
The working process of the secondary sodium purification device comprises the following steps: the secondary sodium is sodium with purity of 70%, and the rest is calcium sodium oxide. Anhydrous NaCl is put in a reaction kettle 1 and is enabled to reach a molten state through an electric heating device 2 with controllable temperature, solid or molten secondary sodium flows into or is put in the reaction kettle 1 through a feeding pipe 3, and the NaCl in the molten state reacts with calcium in the secondary sodium to generate CaCl2Replacing metal sodium with composite salt NaCl and CaCl2So that NaCl meltsThe temperature of (2) is low, the heating electric energy consumption can be reduced, the composite salt with large specific gravity sinks towards the reaction kettle 1, the liquid sodium with light specific gravity floats towards the reaction kettle 1, the molten salt is supplemented from a supplementing pipe 8 at a propeller 7, the molten salt below the reaction kettle 1 is increased, and the liquid sodium enters a sodium storage tank 6 along a sodium ascending pipe 5 under the pressure of the molten salt. In order to ensure the reaction speed, the molten salt solution in the reaction kettle 1 is forcibly circulated downwards by a forced propeller 7. Anhydrous NaCl which is supplemented to the reaction process is sent into the forced circulator through a conveying pipeline with a screw conveyer. When CaCl is in the reaction kettle 12When the ratio (2) is increased, the siphon 9 with a control valve is opened to draw out the molten salt in the reactor 1 from the bottom of the reactor 1.
Claims (6)
1. A secondary sodium purification device, comprising: the device comprises a reaction kettle, a feeding pipe, a sodium collecting cover, a sodium ascending pipe, a sodium storage tank, a siphon and a replenishing pipe; the upper part of the reaction kettle is open, a sodium collecting cover is arranged, the sodium collecting cover is in an inverted hopper shape, the edge of the bottom of the sodium collecting cover is flush and extends into the reaction kettle, the top opening of the sodium collecting cover is communicated with the lower end of a sodium ascending pipe, and a liquid outlet at the upper part of the sodium ascending pipe is connected with a sodium storage tank; a gap is reserved between the bottom of the sodium collecting cover and the opening of the reaction kettle, a feeding pipe and a supplementing pipe are further arranged on the sodium collecting cover, the feeding pipe is used for feeding secondary sodium into the reaction kettle, and the supplementing pipe is used for feeding molten sodium chloride into the reaction kettle; one end of the siphon pipe extends into the bottom of the reaction kettle, and the other end of the siphon pipe is arranged outside the reaction kettle.
2. The secondary sodium purification apparatus as claimed in claim 1, wherein the reaction vessel is a metal reaction vessel, and an electric heating means is provided on an outer wall thereof.
3. The secondary sodium purification apparatus as claimed in claim 1, further comprising: a propeller; the propeller shell is a hollow cylindrical tube, a mounting hole is formed in the middle of the sodium collecting cover, the propeller penetrates through the mounting hole, the lower end of the propeller stretches into the sodium collecting cover and is directly communicated into the reaction kettle, the upper end of the propeller and the power device are located on the upper portion of the sodium collecting cover, a rotating shaft is arranged on the central axis of the shell and is driven by the power device, a pair of spiral blades is arranged at the bottom end of the rotating shaft, and the upper portion of the propeller shell is connected with the supplementing pipe.
4. The secondary sodium purification apparatus of claim 3, wherein the power means comprises a motor and a reducer.
5. The secondary sodium purification apparatus of claim 1, wherein a control valve is disposed in a pipe of the siphon extending out of the reaction vessel.
6. The secondary sodium purification apparatus of claim 1, wherein the sodium collection hood is mounted to the reaction vessel by a bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121805557.4U CN215464322U (en) | 2021-08-04 | 2021-08-04 | Secondary sodium purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121805557.4U CN215464322U (en) | 2021-08-04 | 2021-08-04 | Secondary sodium purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215464322U true CN215464322U (en) | 2022-01-11 |
Family
ID=79755486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121805557.4U Active CN215464322U (en) | 2021-08-04 | 2021-08-04 | Secondary sodium purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215464322U (en) |
-
2021
- 2021-08-04 CN CN202121805557.4U patent/CN215464322U/en active Active
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