CN114917603A - Molten salt distillation assembly, device and method for hot chamber - Google Patents
Molten salt distillation assembly, device and method for hot chamber Download PDFInfo
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- CN114917603A CN114917603A CN202210524104.7A CN202210524104A CN114917603A CN 114917603 A CN114917603 A CN 114917603A CN 202210524104 A CN202210524104 A CN 202210524104A CN 114917603 A CN114917603 A CN 114917603A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/02—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in boilers or stills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a molten salt distillation assembly for a hot chamber, a device and a method thereof, wherein the molten salt distillation assembly for the hot chamber comprises a distillation cavity, a condensation cover and an assembly cover; the distillation cavity is formed by connecting an upper part and a lower part which are coaxially arranged, the upper part is an inverted cone-shaped hollow cavity with an opening at the top and an opening at the bottom, the lower part is a hollow cavity with an opening at the top and a closed bottom, and the upper edge of the lower part penetrates through the bottom of the upper part to form a flange; the condensation cover is detachably coaxial, the sealing cover is arranged on the inner wall of the cavity of the upper part and is higher than the upper edge of the lower part, the assembly cover is detachably coaxial, and the sealing cover is arranged on the top of the upper part. The temperature gradient of the molten salt distillation component for the hot chamber is easy to regulate and control, and the condensate collection rate is high; the molten salt distillation device for the hot chamber can be operated by using a manipulator and a crane in the hot chamber, and is convenient to load and unload.
Description
Technical Field
The invention relates to a molten salt distillation assembly for a hot chamber, a device and a method thereof.
Background
The molten salt reactor utilizes molten halide molten salt as a coolant and a fuel carrier, and the spent fuel mixed molten salt flowing out of a reactor core after the reactor is operated is complex in components and various in types, separates and recovers useful substances (including multiplication products and fission products), and can improve the operating economy of the reactor. Compared with the mature spent fuel treatment by water or organic solvent, the dry post-treatment method is more suitable for treating the spent fuel of the molten salt reactor. Water is not used as a solvent in the process of the dry post-treatment of the spent fuel, and the main separation step is carried out at high temperature. The process has the advantages of radiation resistance, low critical risk, less radioactive waste and the like, and is suitable for treating spent fuel with high fuel consumption and short cooling period. Dry post-treatment, as a high temperature chemical process, can be divided into volatilization, pyrometallurgical processes, ion exchange processes, etc. according to different technical principles.
The volatilization method of the molten salt system is a vacuum distillation method which not only produces fluorinated volatilization extraction uranium with different volatility through chemical reaction, but also realizes component separation under a high-temperature vacuum environment by using the difference of component vapor pressure. The cooling molten salt for the molten salt reactor is usually alkali metal and alkaline earth metal halide eutectic salt, has lower eutectic temperature, the vapor pressure of a single component is higher than that of a fission product, the cooling molten salt can be effectively recovered by utilizing vacuum distillation, the fission product is separated, the operation is simple, impurities are not introduced, and the recovered cooling salt can be repeatedly used.
Since the spent fuel has a strong radioactivity, the post-treatment process is usually performed in a hot chamber. The hot room is a special sealing and shielding operation device commonly used in nuclear engineering, in particular spent fuel postprocessing plants, radiochemical laboratories and isotope production and research facilities. Its main function is to provide the necessary biological shielding, sealed operating space and basic operating conditions for the operator and the adjacent personnel. Because the interior of the hot chamber has strong radiation active substances and a strong corrosive atmosphere environment, workers cannot directly operate the hot chamber and can only rely on a mechanical arm, a crane and the like to perform remote operation.
Therefore, it is necessary to design a molten salt distillation device for a hot chamber, which is suitable for radioactive sites and is operable by a manipulator.
Disclosure of Invention
The invention provides a molten salt distillation assembly for a hot chamber, a device and a method thereof, aiming at the problems that the structure of the existing distillation device is complex and the operation of a manipulator cannot be completed; the molten salt distillation device for the hot chamber can be operated by using a manipulator and a crane in the hot chamber, is convenient to assemble and disassemble, and is a distillation device suitable for radioactive places; the method for distilling the molten salt in the hot chamber has wide application and is suitable for radioactive places.
The invention solves the technical problems through the following technical scheme:
the invention provides a molten salt distillation assembly for a hot chamber, which comprises a distillation cavity, a condensation cover and an assembly cover; the distillation cavity is formed by connecting an upper part and a lower part which are coaxially arranged, the upper part is an inverted cone-shaped hollow cavity with an opening at the top and an opening at the bottom, the lower part is a hollow cavity with an opening at the top and a closed bottom, and the upper edge of the lower part penetrates through the bottom of the upper part to form a flange, so that an annular groove for collecting condensate is formed between the flange and the inner wall of the upper part; the condensation cover is detachably coaxial, the sealing cover is arranged on the inner wall of the cavity of the upper part and is higher than the upper edge of the lower part in a covering mode, and the assembly cover is detachably coaxial and is arranged on the top of the upper part in a sealing mode.
In the invention, the lower part of the distillation cavity can be any one of a conical hollow cavity, a cylindrical hollow cavity, a pyramid hollow cavity and a prism hollow cavity.
In the invention, a plurality of vertically extending positioning rails can be longitudinally and uniformly arranged at different positions along the inner wall of the upper part of the distillation cavity; the number of the positioning tracks is preferably three; the positioning track is preferably shaped as a groove, the depth of which is preferably 0.5 mm.
In the invention, the condensation cover can be composed of a hollow conical cover and a hanging ring; the lifting ring can be fixedly connected to the center of the top end of the conical cover from the outside;
preferably, a plurality of positioning clamping strips which are matched and clamped with the positioning rails are uniformly arranged on the outer surface of the condensation cover; the positioning clamping strip can be in an inverted L shape, and the cross section of the L shape is preferably a cuboid, a prism or a cylinder; the width or diameter of the positioning clip strip may be less than or equal to 95% of the width of the positioning rail, and is preferably 85% -95% of the width of the positioning rail.
In the invention, the upper edge of the upper part of the distillation cavity can be uniformly provided with a plurality of positioning clamping grooves, and the number of the positioning clamping grooves is preferably three; the positioning clamping grooves can be uniformly distributed on the upper edge of the upper part; the positioning clamping groove can be a semi-open arc-shaped groove, and the depth of the arc-shaped groove is preferably 0.5 mm.
In the invention, the component cover can be composed of a cover body and a hanging ring; the cover is preferably hollow conical; the lifting ring can be fixedly connected to the center of the top end of the cover body from the outside;
a plurality of positioning clamping pieces which are matched with the positioning clamping grooves and clamped are uniformly arranged on the edge of the bottom of the cover body; the positioning card is preferably fan-shaped; the circumference of the outer radian of the positioning clamp plate can be less than or equal to 95% of the circumference of the opening region of the positioning clamp groove, and is preferably 85% -95% of the circumference of the opening region of the positioning clamp groove.
The invention also provides a molten salt distillation device for the hot chamber, which comprises a distillation still, a heating device and the molten salt distillation assembly for the hot chamber, wherein the molten salt distillation assembly for the hot chamber is coaxially arranged in the distillation still; the distillation still is coaxially arranged in the heating device.
In the invention, the distillation kettle can comprise a distillation kettle cover and a distillation kettle body; the distillation kettle cover can be a flange cover; the distillation kettle body can be a hollow cavity, and the hollow cavity can be composed of an upper hollow cavity and a lower hollow cavity; the upper and lower hollow cavities are preferably cylindrical or prismatic; the top of the upper hollow cavity body can be provided with an outer flange; the diameter or width of the upper hollow cavity may be greater than the diameter or width of the lower hollow cavity; the flange cover can be tightly combined with the outer flange of the upper hollow cavity through a fastener;
preferably, an outer flange of the upper hollow cavity is provided with an annular groove; the depth of the annular groove is 3 mm; a sealing ring is arranged between the flange cover and an outer flange of the upper hollow cavity; the inner and outer circumferences of the sealing ring are respectively equal to the inner and outer circumferences of the annular groove.
In the invention, preferably, the heating device is a resistance furnace; the molten salt distillation device for the hot chamber can also comprise a vacuum tube, a pressure detection element and a lifting ring; and positioning holes connected with the vacuum tube, the pressure detection element and the hanging ring can be respectively arranged on the flange cover in a penetrating way.
The invention also provides a molten salt distillation method in the hot chamber, which is carried out by adopting the molten salt distillation device for the hot chamber, and the molten salt distillation method in the hot chamber comprises the following steps: s1, moving the hot chamber containing the solid molten salt into the distillation kettle by using a molten salt distillation assembly; s2, removing the assembly cover, installing the assembly cover into the condensation cover, and then sealing the distillation kettle; and S3, starting the heating device to distill.
In a preferred embodiment of the invention, the method for distilling molten salt in a hot chamber comprises the following steps:
s1, filling solid molten salt into the distillation cavity, and covering the assembly on the top of the upper part of the distillation cavity; the assembly cover consists of the cover body and the hanging ring, a positioning card of the assembly cover is aligned to the positioning clamping groove of the distillation cavity to be clamped, and the assembled molten salt distillation assembly for the hot chamber is moved into the distillation kettle;
s2, removing the assembly cover, covering the condensation cover on the inner wall of the upper part of the distillation cavity, wherein the condensation cover consists of the hollow conical cover and the hanging ring; the positioning clamping strip on the outer surface of the condensation cover is matched and clamped with the positioning rail on the inner wall of the cavity of the upper part of the distillation cavity; sealing the distillation kettle;
and S3, opening the heating device for distillation.
In a specific embodiment of the invention, the method for distilling molten salt in the hot chamber comprises the following steps:
s1, filling solid molten salt into the distillation cavity, and covering the assembly on the top of the upper part of the distillation cavity; the assembly cover consists of the cover body and the hanging ring; aligning the positioning clamping piece of the component cover to the positioning clamping groove of the distillation cavity by using a mechanical arm, and clockwise rotating for a certain angle to clamp the component cover; stably hoisting the assembled distillation assembly into the distillation kettle body by using a mobile crane;
s2, removing the assembly cover by using the manipulator, and then smoothly covering the condensation cover on the inner wall of the upper part of the distillation cavity by using the manipulator; the condensation cover consists of the hollow conical cover and the hanging ring; the positioning clamping strip on the outer surface of the condensation cover is matched and clamped with the positioning rail on the inner wall of the cavity of the upper part of the distillation cavity; placing the distillation kettle cover on the distillation kettle body by using the manipulator; then sealing the distillation kettle cover and the distillation kettle body through a stud;
and S3, opening the resistance furnace and distilling the molten salt.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
the temperature gradient of the molten salt distillation component for the hot chamber is easy to regulate and control, the condensate collection rate is high, and the molten salt distillation component is suitable for a molten salt distillation device for the hot chamber used in a radioactive place; the molten salt distillation device for the hot chamber can be operated by using a manipulator and a crane in the hot chamber, is convenient to assemble and disassemble, and is a distillation device suitable for radioactive places; the method for distilling the molten salt in the hot chamber has wide application and is suitable for radioactive places.
Drawings
Fig. 1 is a structural diagram of a molten salt distillation apparatus for a hot room of example 1.
Figure 2 is a schematic diagram of the distillation assembly of example 1.
FIG. 3 is a top view of the still cover of example 1.
Figure 4 is a schematic of the distillation chamber of example 1.
Fig. 5 is a top view of the condensation cover of embodiment 1.
Fig. 6 is a front view of the condensation cover of embodiment 1.
Fig. 7 is a top view of the module cover of example 1.
Description of the reference numerals:
1-distillation still body
2-distillation assembly
21-distillation chamber 22-condensation cover 23-component cover
3-stud
4-distillation still cover
5-vacuum tube
6-pressure detecting element
7-hanging ring
8-resistance furnace
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the invention thereto.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Example 1
As shown in fig. 1 and fig. 2, a molten salt distillation device for a hot chamber comprises a distillation still, a molten salt distillation component 2 for the hot chamber and a resistance furnace 8, wherein the molten salt distillation component 2 for the hot chamber is coaxially arranged in the distillation still; the distillation kettle is coaxially arranged in the resistance furnace 8;
the distillation kettle comprises a distillation kettle cover 4 and a distillation kettle body 1; the distillation kettle cover 4 is a flange cover; the distillation kettle body 1 is a hollow cavity which consists of an upper hollow cavity and a lower hollow cavity; the upper hollow cavity and the lower hollow cavity are cylinders; the top of the upper hollow cavity is provided with an outer flange; the diameter of the upper hollow cavity is larger than that of the lower hollow cavity; the flange cover is tightly combined with an outer flange of the upper hollow cavity through the stud 3;
an annular groove is arranged on the outer flange of the upper hollow cavity; the depth of the annular groove is 3 mm; a sealing ring is arranged between the flange cover and the outer flange of the upper hollow cavity; the inner and outer circumferences of the sealing ring are equal to the inner and outer circumferences of the annular groove.
As shown in fig. 1 and 3, the molten salt distilling apparatus for hot chamber further includes a vacuum tube 5, a pressure detecting element 6 and a lifting ring 7; and positioning holes connected with the vacuum tube 5, the pressure detection element 6 and the hanging ring 7 are respectively arranged on the distillation kettle cover 4 in a penetrating way.
As shown in fig. 2, the molten salt distillation assembly for hot chamber 2 comprises a distillation cavity 21, and the molten salt distillation assembly for hot chamber 2 further comprises a condensation cover 22 and an assembly cover 23; as shown in fig. 4, the distillation chamber 21 is formed by connecting an upper member and a lower member which are coaxially arranged, the upper member is an inverted cone-shaped hollow chamber with an opening at the top and an opening at the bottom, the lower member is a hollow chamber with an opening at the top and a closed bottom, and the upper edge of the lower member penetrates through the bottom of the upper member to form a flange, so that the flange and the inner wall of the upper member form an annular groove for collecting condensate; the condensation cover 22 is detachably coaxial and is arranged on the inner wall of the cavity of the upper part in a sealing manner, the covering position is higher than the upper edge of the lower part, and the assembly cover 23 is detachably coaxial and is arranged on the top of the upper part in a sealing manner.
The lower part of the distillation chamber 21 is a cylindrical hollow chamber.
A plurality of vertically extending positioning rails are also longitudinally and uniformly arranged at different positions along the inner wall of the upper part of the distillation cavity 21; the shape of positioning track is the recess, and the degree of depth of recess is 0.5 mm.
As shown in fig. 5 and 6, the condensation cover 22 is composed of a hollow conical cover and a hanging ring; the lifting ring is fixedly connected to the center of the top end of the conical cover from the outside;
a plurality of positioning clamping strips which are matched and clamped with the positioning rails are uniformly arranged on the outer surface of the condensation cover 22; the positioning clamping strip is in an inverted L shape, and the cross section of the L shape is a cylinder;
a plurality of positioning clamping grooves are uniformly formed in the upper edge of the upper part of the distillation cavity 21; the positioning clamping grooves are uniformly distributed on the upper edge of the upper part; the positioning clamping groove is a semi-open arc-shaped groove, and the depth of the arc-shaped groove is 0.5 mm.
As shown in fig. 7, the module cover 23 is composed of a cover body and a hanging ring; the cover body is in a hollow conical shape; the lifting ring is fixedly connected to the center of the top end of the cover body from the outside;
a plurality of positioning clamping pieces which are matched with the positioning clamping grooves and clamped are uniformly arranged at the edge of the bottom of the cover body; the positioning card is in the shape of a fan.
The method for distilling the molten salt in the hot chamber comprises the following steps:
s1, filling solid molten salt into the distillation cavity 21, and arranging the assembly cover 23 at the top of the upper part of the distillation cavity 21; the assembly cover 23 is composed of a cover body and a hanging ring; aligning the positioning card of the assembly cover 23 to the positioning card slot of the distillation cavity 21 by using a manipulator, and clockwise rotating for a certain angle to clamp; stably hoisting the assembled distillation component 2 into the distillation kettle body 1 by using a mobile crane;
s2, removing the assembly cover 23 by using a manipulator, and covering the condensation cover 22 on the inner wall of the upper part of the distillation cavity 21 by using the manipulator; the condensation cover 22 consists of a hollow conical cover and a hanging ring; the positioning clamping strip on the outer surface of the condensation cover 22 is clamped with the positioning track on the inner wall of the upper part of the distillation cavity 21 in a matching way; placing the distillation kettle cover 4 on the distillation kettle body 1 by using a mechanical arm; then sealing the distillation kettle cover 4 and the distillation kettle body 1 through a stud 3;
s3, starting the resistance furnace 8, and distilling the molten salt;
s4, stopping heating after distillation is finished;
and S5, opening the distillation kettle cover 4 by using a manipulator, taking out the distillation assembly 2 by using a mobile crane, and removing the assembly cover 23 and the condensation cover 22 in sequence by using the manipulator to recover the materials in the distillation cavity 21. The change of the materials is analyzed, and the collection rate of the condensed salt reaches 100 percent.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A molten salt distillation assembly for a hot chamber, comprising a distillation cavity, characterized in that the molten salt distillation assembly for the hot chamber further comprises a condensation cover and an assembly cover; the distillation cavity is formed by connecting an upper part and a lower part which are coaxially arranged, the upper part is an inverted cone-shaped hollow cavity with an opening at the top and an opening at the bottom, the lower part is a hollow cavity with an opening at the top and a closed bottom, and the upper edge of the lower part penetrates through the bottom of the upper part to form a flange, so that an annular groove for collecting condensate is formed between the flange and the inner wall of the upper part; the condensation cover is detachably coaxial, the sealing cover is arranged on the inner wall of the cavity of the upper part and is higher than the upper edge of the lower part in a covering mode, and the assembly cover is detachably coaxial and is arranged on the top of the upper part in a sealing mode.
2. A molten salt distillation assembly for a hot chamber as claimed in claim 1 wherein the lower part of the distillation chamber is any one of a conical hollow chamber, a cylindrical hollow chamber, a pyramidal hollow chamber and a prismatic hollow chamber.
3. A molten salt distillation assembly for a hot chamber as claimed in claim 1 wherein a plurality of vertically extending positioning rails are also provided longitudinally and uniformly at different positions along the inner wall of the upper member of the distillation chamber; the number of the positioning tracks is preferably three; the positioning track is preferably in the shape of a groove, and the depth of the groove is preferably 0.5 mm;
and/or a plurality of positioning clamping grooves are uniformly arranged on the upper edge of the upper part of the distillation cavity, and the number of the positioning clamping grooves is preferably three; the positioning clamping grooves are uniformly distributed on the upper edge of the upper part; the positioning clamping groove is a semi-open arc-shaped groove, and the depth of the arc-shaped groove is preferably 0.5 mm.
4. A molten salt distillation assembly for a hot chamber as claimed in claim 3 wherein the condensation cover is comprised of a hollow conical cover and a lifting ring; the lifting ring is fixedly connected to the center of the top end of the conical cover from the outside;
preferably, a plurality of positioning clamping strips which are matched and clamped with the positioning rails are uniformly arranged on the outer surface of the condensation cover; the positioning clamping strip is in an inverted L shape, and the cross section of the L shape is preferably a cuboid, a prism or a cylinder; the width or diameter of the positioning clip strip may be less than or equal to 95% of the width of the positioning rail, and is preferably 85% -95% of the width of the positioning rail.
5. A molten salt distillation assembly for a hot chamber as claimed in claim 3 wherein the assembly cover is comprised of a cover body and a lifting ring; the cover is preferably hollow conical; the lifting ring is fixedly connected to the center of the top end of the cover body from the outside;
a plurality of positioning clamping pieces which are matched with the positioning clamping grooves and clamped are uniformly arranged at the edge of the bottom of the cover body; the positioning card is in a fan shape; the circumference of the outer radian of the positioning card is less than or equal to 95% of the circumference of the opening region of the positioning card slot, and preferably 85% -95% of the circumference of the opening region of the positioning card slot.
6. A molten salt distillation device for a hot chamber, which comprises a distillation kettle, a molten salt distillation component for the hot chamber and a heating device, and is characterized in that the molten salt distillation component for the hot chamber is as claimed in any one of claims 1 to 5, and is coaxially arranged in the distillation kettle; the distillation still is coaxially arranged in the heating device.
7. A molten salt distillation apparatus for a hotroom as in claim 6, wherein the still includes a still cover and a still body; the distillation kettle cover is a flange cover; the distillation kettle body is a hollow cavity body, and the hollow cavity body consists of an upper hollow cavity body and a lower hollow cavity body; the upper hollow cavity and the lower hollow cavity are cylinders or prisms; an outer flange is arranged at the top of the upper hollow cavity; the diameter or the width of the upper hollow cavity is larger than that of the lower hollow cavity; the flange cover is tightly combined with the outer flange of the upper hollow cavity through a fastener;
preferably, an outer flange of the upper hollow cavity is provided with an annular groove; the depth of the annular groove is 3 mm; a sealing ring is arranged between the flange cover and an outer flange of the upper hollow cavity; the inner and outer circumferences of the sealing ring are respectively equal to the inner and outer circumferences of the annular groove.
8. A molten salt distillation apparatus for a hot chamber as claimed in claim 7, wherein the heating means is an electric resistance furnace; the molten salt distillation device for the hot chamber further comprises a vacuum tube, a pressure detection element and a lifting ring; and positioning holes connected with the vacuum tube, the pressure detection element and the hanging ring are respectively arranged on the flange cover in a penetrating way.
9. A hot indoor molten salt distillation method is characterized by being carried out by adopting the hot indoor molten salt distillation device as claimed in any one of claims 6 to 8, and the hot indoor molten salt distillation method comprises the following steps: s1, moving the hot chamber containing the solid molten salt into the distillation kettle by using a molten salt distillation assembly; s2, removing the assembly cover, filling the assembly cover into a condensation cover, and sealing the distillation kettle; and S3, starting the heating device to distill.
10. A method of molten salt distillation in a hot chamber as claimed in claim 9 comprising the steps of:
s1, solid molten salt is filled into the distillation cavity, and the assembly is covered on the top of the upper part of the distillation cavity; the assembly cover consists of the cover body and the hanging ring, a positioning card of the assembly cover is aligned to the positioning clamping groove of the distillation cavity to be clamped, and the assembled molten salt distillation assembly for the hot chamber is moved into the distillation kettle;
s2, removing the assembly cover, covering the condensation cover on the inner wall of the upper part of the distillation cavity, wherein the condensation cover consists of the hollow conical cover and the hanging ring; the positioning clamping strip on the outer surface of the condensation cover is matched and clamped with the positioning rail on the inner wall of the cavity of the upper part of the distillation cavity; sealing the distillation kettle;
and S3, opening the heating device for distillation.
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| CN202210524104.7A CN114917603B (en) | 2022-05-13 | 2022-05-13 | Molten salt distillation assembly, device and method for hot chamber |
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