CN111870989A - Multi-layer vacuum cooling crystallization device for magnesium vapor - Google Patents

Multi-layer vacuum cooling crystallization device for magnesium vapor Download PDF

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Publication number
CN111870989A
CN111870989A CN202010717888.6A CN202010717888A CN111870989A CN 111870989 A CN111870989 A CN 111870989A CN 202010717888 A CN202010717888 A CN 202010717888A CN 111870989 A CN111870989 A CN 111870989A
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crystal
water
sweeping
vertical double
cooling
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周森安
李县辉
李豪
郑传涛
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Sigma Henan High Temperature Technology Group Co Ltd
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Sigma Henan High Temperature Technology Group Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D7/00—Sublimation
    • B01D7/02—Crystallisation directly from the vapour phase
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/20—Obtaining alkaline earth metals or magnesium
    • C22B26/22—Obtaining magnesium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/02—Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04—Refining by applying a vacuum
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

The utility model provides a multilayer vacuum cooling crystallization device for magnesium vapour, includes vertical double-deck casing, inside multilayer crystallization subassembly, circulating water cooling subassembly and control mechanism, and vertical double-deck casing comprises upper portion crystallization section and the lower part collection section that butt joint set up from top to bottom, and upper portion crystallization section is the vertical double-deck cylindric structure of lower extreme open-ended, and is provided with the intermediate layer cavity that is used for the cooling water to pass through between double-deck cylindric structure. The invention has the advantages that through the improvement of the internal structure of the cooling crystallization device, the cooling efficiency is high, the sweeping and the collection of magnesium crystals in the device can be automatically realized without stopping the device, the whole production process is in a vacuum environment, the product is high-purity magnesium, the automation degree is high, the safety and the reliability are good, and the production efficiency is high.

Description

Multi-layer vacuum cooling crystallization device for magnesium vapor
Technical Field
The invention relates to the technical field of industrial magnesium purification equipment, in particular to a multilayer vacuum cooling crystallization device for magnesium vapor.
Background
Magnesium is an active metal element, and can react with air at normal temperature to form a magnesium oxide layer on the outer surface. Magnesium is one of the lightest structural metal materials, and has the advantages of high specific strength and specific rigidity, good damping property, machinability and thermal fatigue property, difficult aging, good thermal conductivity, strong electromagnetic shielding capability, excellent die-casting process performance, easy recovery and the like. The method has wide application in the fields of electronic communication integrated device industry, sound image equipment industry, motor industry, nuclear power plant industry, automobile industry, medical industry and the like.
In the prior art, during the production of high-purity magnesium, magnesium vapor generated after melting and sublimation in a heating evaporation furnace is usually filtered and then introduced into a crystallizer for cooling, crystallization and collection. The existing cooling crystallization device has the following main defects: 1. the area of the inner wall surface of the crystallizer which can be used for cooling crystallization is limited, so that the cooling efficiency of metal is low, and the production period is long; 2. in order to relatively improve the cooling efficiency, the cooling crystallizer is generally large in volume, large in occupied area and high in cost; 3. after the metal is cooled and crystallized on the inner wall surface of the crystallizer, the metal cannot be discharged automatically, the machine needs to be stopped periodically to scrape and collect metal crystals on the inner wall surface, so that the defects of low production efficiency and high safety risk exist, the oxidation of the magnesium crystals is easily caused in the open environment after the machine is stopped, the impurity rate of finished magnesium is high, and high-purity magnesium cannot be obtained.
Disclosure of Invention
The technical purpose of the invention is as follows: through the improvement of cooling crystallization device inner structure, set up a cooling efficiency height, need not to shut down and can realize sweeping and collecting of magnesium crystal in the device automatically, produce whole journey for vacuum environment, product be high-purity magnesium, degree of automation is high, and fail safe nature is good, the high vacuum cooling crystallization device of production efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows: a multilayer vacuum cooling crystallization device for magnesium vapor comprises a vertical double-layer shell, an internal multilayer crystallization component, a circulating water cooling component and a control mechanism, wherein the vertical double-layer shell is composed of an upper crystallization section and a lower collection section which are butted up and down, the upper crystallization section is of a vertical double-layer cylindrical structure with an opening at the lower end, an interlayer cavity for cooling water to pass through is arranged between the double-layer cylindrical structures, a magnesium vapor inlet is also formed in the side wall of the upper crystallization section, the lower collection section is of a funnel-shaped structure, a magnesium crystal outlet with a vacuum valve is formed in the bottom end of the funnel-shaped lower collection section, and the vacuum valve is connected with the control mechanism;
the internal multilayer crystallization assembly is arranged inside the vertical double-layer shell and comprises at least one cylindrical crystallizer which is coaxially arranged with the vertical double-layer shell, the cylindrical crystallizer comprises a horizontally arranged circular ring-shaped plugging plate and two vertical cylinders which are arranged on the lower surface of the circular ring-shaped plugging plate, the two vertical cylinders are respectively arranged along the inner diameter and the outer diameter of the circular ring-shaped plugging plate, so that an interlayer cavity for cooling water to pass through is formed between the two vertical cylinders, and a sealing plate is arranged at the bottom end of the interlayer cavity;
the circulating water cooling component comprises a cooling tower, a water supply pipe, a plurality of water distribution pipes, a water delivery pipe and a water return pipe, one end of the water supply pipe is connected with the water outlet of the cooling tower, the other end of the water supply pipe extends to the inside of the vertical double-layer shell, and the end part is connected with a plurality of water distribution pipes, the number of the water distribution pipes is consistent with the number of interlayer cavities in the whole cooling crystallization device, and are in one-to-one correspondence with each other, each water diversion pipe is used for supplying circulating water for the corresponding interlayer cavity, each water diversion pipe is provided with an electric control valve, the electric control valve is electrically connected with the control mechanism, a plurality of water conveying pipes are arranged in each interlayer cavity, the water delivery pipe is connected with the tail ends of the fractional pipes, the water outlet tail end of each water delivery pipe is positioned at the top end of the interlayer cavity where the water delivery pipe is positioned, the bottom of every intermediate layer cavity has all been seted up the return water mouth, and every return water mouth all is connected with the water inlet of cooling tower through a wet return.
Preferably, a feeding valve is arranged on the magnesium steam inlet, and the feeding valve is electrically connected with the control mechanism.
Preferably, when the number of the cylindrical crystallizers in the vertical double-layer shell is two or more, the plurality of cylindrical crystallizers are coaxially arranged and have different diameters.
Preferably, the plurality of water conveying pipes in each interlayer cavity are uniformly arranged in the interlayer cavity.
Preferably, the cooling crystallization device further comprises a crystal sweeping assembly arranged inside the vertical double-layer shell, the crystal sweeping assembly comprises a driving motor and a crystal sweeping frame, the crystal sweeping frame comprises a plurality of fixing rods radially arranged in a horizontal circle and a plurality of crystal sweeping pieces arranged on the lower surfaces of the fixing rods, the number of the crystal sweeping pieces is two times of the number of the cylindrical crystallizers in the whole cooling crystallization device, the crystal sweeping pieces are in one-to-one correspondence with the inner walls of the cylindrical crystallizers, the outer walls and the vertical double-layer shell respectively, so that cooled crystal magnesium is swept on the inner walls or the outer walls of the cylindrical crystallizers or the inner walls of the vertical double-layer shell, each crystal sweeping piece comprises two fixing rings which are arranged in an up-down corresponding mode, at least one crystal sweeping rod is vertically arranged between the two fixing rings which correspond to each crystal sweeping rod, and the distance between the crystal sweeping rod and the inner wall or the outer wall of the cylindrical crystallizers corresponding to the crystal sweeping rod or the inner wall of the vertical double-layer shell or the inner The distance is 5-15mm, the driving motor is arranged at the top of the vertical double-layer shell and is electrically connected with the control mechanism, and the driving motor can drive the whole crystal sweeping rack to carry out rotary crystal sweeping operation under the control of the control mechanism.
Preferably, when a plurality of crystal sweeping rods are arranged between the two upper and lower corresponding fixing rings, the plurality of crystal sweeping rods are uniformly arranged along the circumferential direction of the fixing rings.
Preferably, the plurality of fixing rods are of an integral structure, and the plurality of fixing rods are uniformly arranged along the circumferential direction of a circle where the fixing rods are located.
Preferably, a sealing bearing for fixing is arranged between the lower part of the crystal sweeping frame and the inner wall surface of the vertical double-layer shell.
The invention has the beneficial effects that:
1. according to the multilayer vacuum cooling crystallization device for magnesium vapor, the internal multilayer crystallization assembly with the multilayer surface structure is arranged in the vertical double-layer shell, so that the cooling crystallization area of the whole cooling crystallization device can be multiplied, the cooling crystallization efficiency of the magnesium vapor is improved to the maximum extent, the volume of the cooling crystallizer is reduced, and the cost is reduced.
2. According to the multilayer vacuum cooling crystallization device for magnesium vapor, the crystal sweeping frames matched with the inner surface of the vertical double-layer shell and the inner surface and the outer surface of the internal multilayer crystallization assembly are arranged on the inner surface of the vertical double-layer shell and the inner surface and the outer surface of the internal multilayer crystallization assembly, so that the automatic sweeping and collection of crystal magnesium in the cooling crystallization device can be realized on the premise of no need of stopping and full vacuum, the whole operability and safety reliability of the device are improved, the automatic operation of equipment is realized, the high purity of metal products is ensured, and the practical effect is good.
3. The multilayer vacuum cooling crystallization device for magnesium vapor is simple in structure and reasonable in arrangement, and due to the arrangement of the sealing bearing at the lower part of the crystal sweeping frame, the whole crystal sweeping frame is fixed, and the potential safety hazard of left-right swinging caused by centrifugal force in the rotating crystal sweeping operation process is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the interior of the vertical double shell of the present invention;
FIG. 3 is a schematic structural view of a cylindrical crystallizer;
FIG. 4 is a schematic structural diagram of a wafer scanning frame;
reference numerals: 1. the vertical double-layer shell comprises a vertical double-layer shell body, 101, an upper crystallization section, 102, a lower collection section, 2, an interlayer cavity, 3, a magnesium steam inlet, 4, a vacuum valve, 5, a magnesium crystal outlet, 6, a cylindrical crystallizer, 601, a circular ring-shaped plugging plate, 602, a vertical cylinder, 7, a cooling tower, 8, a water supply pipe, 9, a water distribution pipe, 10, a water conveying pipe, 11, a water return pipe, 12, a feeding valve, 13, a driving motor, 14, a crystal sweeping frame, 1401, a fixing rod, 1402, a fixing ring, 1403 and a crystal sweeping rod.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in the figure, the multilayer vacuum cooling crystallization device for magnesium vapor comprises a vertical double-layer shell 1, an internal multilayer crystallization assembly, a circulating water cooling assembly and a control mechanism, the vertical double-layer shell 1 consists of an upper crystallization section 101 and a lower collection section 102 which are butted up and down, wherein the upper crystallization section 101 is a vertical double-layer cylindrical structure with an opening at the lower end, and an interlayer cavity 2 for cooling water to pass through is arranged between the double-layer cylindrical structures, the side wall of the upper crystallization section 101 is also provided with a magnesium steam inlet 3, the magnesium steam inlet 3 is provided with a feed valve 12, and the feed valve 12 is electrically connected with the control mechanism, the lower collecting section 102 is in a funnel-shaped structure, a magnesium crystal outlet 5 with a vacuum valve 4 is arranged at the bottom end of the funnel-shaped lower collecting section 102, and the vacuum valve 4 is connected with a control mechanism;
the internal multilayer crystallization assembly is arranged inside the vertical double-layer shell 1 and comprises at least one cylindrical crystallizer 6 coaxially arranged with the vertical double-layer shell 1, and when the number of the cylindrical crystallizers 6 in the vertical double-layer shell 1 is two or more, the cylindrical crystallizers 6 are coaxially arranged and have different diameters. The cylindrical crystallizer 6 comprises a horizontally arranged circular ring-shaped plugging plate 601 and two vertical cylinders 602 arranged on the lower surface of the circular ring-shaped plugging plate 601, wherein the two vertical cylinders 602 are respectively arranged along the inner diameter and the outer diameter of the circular ring-shaped plugging plate 601, so that an interlayer cavity 2 for cooling water to pass through is formed between the two vertical cylinders 602, and a sealing plate is arranged at the bottom end of the interlayer cavity 2;
the circulating water cooling assembly comprises a cooling tower 7, a water supply pipe 8, a plurality of water distribution pipes 9, a water delivery pipe 10 and a water return pipe 11, wherein one end of the water supply pipe 8 is connected with a water outlet of the cooling tower 7, the other end of the water supply pipe 8 extends into the vertical double-layer shell 1, the end part of the water supply pipe is connected with the plurality of water distribution pipes 9, the number of the water distribution pipes 9 is consistent with that of the interlayer cavities 2 in the whole cooling crystallization device and corresponds to each other one by one, each water distribution pipe 9 is used for supplying circulating water to the corresponding interlayer cavity 2, each water distribution pipe 9 is provided with an electric control valve which is electrically connected with a control mechanism, each interlayer cavity 2 is internally provided with a plurality of water delivery pipes 10, the plurality of water delivery pipes 10 in each interlayer cavity 2 are uniformly arranged in the interlayer cavity 2, and the water delivery pipes 10 are connected to the tail ends of the water distribution pipes, and the water outlet end of each water pipe 10 is positioned at the top end of the interlayer cavity 2 where the water pipe is positioned, the bottom end of each interlayer cavity 2 is provided with a water return port, and each water return port is connected with the water inlet of the cooling tower 7 through a water return pipe 11.
The cooling crystallization device further comprises a crystal sweeping assembly arranged inside the vertical double-layer shell 1, the crystal sweeping assembly comprises a driving motor 13 and a crystal sweeping frame 14, the crystal sweeping frame 14 comprises a plurality of fixing rods 1401 radially arranged in a horizontal circle and a plurality of crystal sweeping pieces arranged on the lower surface of the fixing rods 1401, the fixing rods 1401 are of an integral structure, the fixing rods 1401 are evenly arranged along the circumferential direction of the circle where the fixing rods are arranged, and a sealing bearing for fixing is arranged between the lower portion of the crystal sweeping frame 14 and the inner wall surface of the vertical double-layer shell 1. The number of the crystal sweeping pieces is two times that of the cylindrical crystallizer 6 in the whole cooling crystallization device, and the crystal sweeping pieces correspond to the inner wall and the outer wall of the cylindrical crystallizer 6 and the inner wall of the vertical double-layer shell 1 one by one respectively so as to sweep cooled crystal magnesium off the inner wall or the outer wall of the cylindrical crystallizer 6 or the inner wall of the vertical double-layer shell 1, each crystal sweeping piece comprises two fixing rings 1402 which are arranged correspondingly up and down, at least one crystal sweeping rod 1403 is vertically arranged between the two fixing rings 1402 which are arranged correspondingly up and down, when the crystal sweeping rods 1403 are arranged between the two fixing rings 1402 which are arranged correspondingly up and down, the crystal sweeping rods 1403 are uniformly arranged along the circumferential direction of the fixing rings 1402, and the distance between the crystal sweeping rods 1403 and the inner wall or the outer wall of the cylindrical crystallizer 6 or the inner wall of the vertical double-layer shell 1 corresponding to the crystal sweeping rods 1403 is 5-15mm, the driving motor 13 is arranged at the top of the vertical double-layer shell 1 and is electrically connected with the control mechanism, and the driving motor can drive the whole crystal sweeping rack 14 to rotate and sweep crystal under the control of the control mechanism.
When the multilayer vacuum cooling crystallization device for magnesium vapor is used specifically, a control mechanism in the device controls a feed valve at a magnesium vapor inlet to be closed, and the interior of a vertical double-layer shell is vacuumized through a vacuum valve at a magnesium crystal outlet by an external vacuumizing assembly. And then, closing the vacuum valve, opening the feeding valve, controlling an electric control valve in the circulating water cooling assembly to be opened by a control mechanism, conveying the cooled circulating water to a plurality of water distribution pipes by the cooling tower through a water outlet of the cooling tower through a water supply pipe, conveying the cooling circulating water to the top of each interlayer cavity by the water distribution pipes through water conveying pipes connected with the water distribution pipes, cooling the vertical double-layer shell and the plurality of cylindrical crystallizers, further cooling the magnesium vapor in the vertical double-layer shell, and cooling and crystallizing the inner wall surface of the vertical double-layer shell and the inner and outer wall surfaces of the plurality of cylindrical crystallizers. When crystals are separated out on the inner wall surface of the vertical double-layer shell and the inner and outer wall surfaces of the plurality of cylindrical crystallizers, the control mechanism controls the driving motor to act, the driving motor drives the whole crystal sweeping frame to rotate, so that the magnesium crystals on the inner wall surface of the vertical double-layer shell and the inner and outer wall surfaces of the plurality of cylindrical crystallizers are swept down, and are enriched in the funnel-shaped lower collecting section of the vertical double-layer shell under the action of gravity. When a certain amount of magnesium is reached, the control mechanism controls the vacuum valve on the magnesium crystal outlet to be opened, and the magnesium crystal is received in vacuum.
The multilayer vacuum cooling crystallization device for magnesium vapor has the advantages of large cooling area and high cooling efficiency, and magnesium crystals are automatically swept into a subsequent crystal receiver under the action of the crystal sweeping component, so that automatic production is realized.
The device is characterized in that a vertical double-layer shell is cooled by double-layer vertical water circulation, magnesium vapor is cooled into magnesium crystals when meeting the inner surface of the vertical double-layer shell, one side of the vertical double-layer shell is provided with a magnesium vapor inlet, the lower part of the vertical double-layer shell is provided with a magnesium crystal outlet with a vacuum valve, the other side of the vertical double-layer shell is provided with a water supply pipe inlet, the upper part of the vertical double-layer shell is provided with a variable frequency driving motor for rotation, an internal multilayer crystallization assembly is arranged inside the vertical double-layer shell, and the magnesium vapor is cooled by the internal multilayer crystallization assembly to be changed into crystals after.
The circulating water cooling assembly comprises a cooling tower, a water supply pipe, a water diversion pipe, a water delivery pipe, a water return pipe and an electric valve, cooling water enters the interlayer cavity in the vertical double-layer shell through a plurality of water inlets of the vertical double-layer shell respectively and enters the interlayer cavity of the internal multilayer crystallization assembly through a circulating water inlet in the internal multilayer crystallization assembly.
The number of the cylindrical crystallizers in the internal multi-layer crystallizing component can be one or more, so that single-layer cooling or multi-layer cooling is realized.
Sweep brilliant subassembly include with inside multilayer crystallization subassembly assorted a plurality of sweep brilliant spare and rotatory for variable frequency drive motor, sweep brilliant frame and follow the installation of upper portion entry, every sweeps the brilliant piece in sweep the distance between the inner wall of brilliant pole and the cylinder crystallizer rather than corresponding or the inner wall of outer wall or vertical double shell be 5-15mm, magnesium crystal is at the inner wall of cylinder crystallizer or the inner wall crystallization of outer wall or vertical double shell, often can bond on the wall, through sweeping the continuous rotation of brilliant frame, magnesium crystal will be swept to the lower part collection section of leaking hopper-shaped of vertical double shell in, set up fixed knot structure's sealed bearing in the lower part of sweeping brilliant frame for fixed sweep brilliant frame can not the left and right rocking.
The magnesium crystal outlet with the vacuum valve is mainly used for closing the valve when the receiver is replaced, so that the vacuum degree in the crystallizer is ensured, or the vacuum pumping treatment in the vertical double-layer shell is realized.
In the vacuum cooling crystallization device, an electric valve is arranged in a circulating water cooling assembly and used for automatically adjusting the flow rate of cooling circulating water in each interlayer cavity under the action of a control mechanism, and a driving motor, a vacuum valve and a feed valve are all connected with the control mechanism so as to realize the automatic adjustment of the rotating speed of a crystal sweeping frame; vacuumizing treatment and starting and stopping magnesium steam feeding in the vertical double-layer shell.

Claims (8)

1. A multi-layer vacuum cooling crystallization device for magnesium vapor, characterized in that: the vertical double-layer shell comprises a vertical double-layer shell (1), an internal multi-layer crystallization component, a circulating water cooling component and a control mechanism, wherein the vertical double-layer shell (1) is composed of an upper crystallization section (101) and a lower collection section (102) which are butted up and down, the upper crystallization section (101) is of a vertical double-layer cylindrical structure with an opening at the lower end, an interlayer cavity (2) for cooling water to pass through is arranged between the double-layer cylindrical structures, a magnesium vapor inlet (3) is also formed in the side wall of the upper crystallization section (101), the lower collection section (102) is of a funnel-shaped structure, a magnesium crystal outlet (5) with a vacuum valve (4) is formed in the bottom end of the funnel-shaped lower collection section (102), and the vacuum valve (4) is connected with the control mechanism;
the internal multilayer crystallization component is arranged inside the vertical double-layer shell (1) and comprises at least one cylindrical crystallizer (6) coaxially arranged with the vertical double-layer shell (1), the cylindrical crystallizer (6) comprises a horizontally arranged circular ring-shaped plugging plate (601) and two vertical cylinders (602) arranged on the lower surface of the circular ring-shaped plugging plate (601), the two vertical cylinders (602) are respectively arranged along the inner diameter and the outer diameter of the circular ring-shaped plugging plate (601), so that an interlayer cavity (2) for cooling water to pass through is formed between the two vertical cylinders (602), and a sealing plate is arranged at the bottom end of the interlayer cavity (2);
the circulating water cooling assembly comprises a cooling tower (7), a water supply pipe (8), a plurality of water distribution pipes (9), a water conveying pipe (10) and a water return pipe (11), wherein one end of the water supply pipe (8) is connected with a water outlet of the cooling tower (7), the other end of the water supply pipe (8) extends into the vertical double-layer shell (1), the end part of the water supply pipe is connected with the water distribution pipes (9), the number of the water distribution pipes (9) is consistent with that of the interlayer cavities (2) in the whole cooling crystallization device and corresponds to each other one by one, each water distribution pipe (9) is used for supplying circulating water for the corresponding interlayer cavity (2), each water distribution pipe (9) is provided with an electric control valve which is electrically connected with a control mechanism, each interlayer cavity (2) is internally provided with a plurality of water conveying pipes (10), and each water conveying pipe (10) is connected to the tail end of the corresponding water distribution pipe, and the water outlet end of each water pipe (10) is positioned at the top end of the interlayer cavity (2) where the water pipe is positioned, the bottom end of each interlayer cavity (2) is provided with a water return port, and each water return port is connected with the water inlet of the cooling tower (7) through a water return pipe (11).
2. The multi-layer vacuum cooling crystallization apparatus for magnesium vapor according to claim 1, characterized in that: the magnesium steam inlet (3) is provided with a feeding valve (12), and the feeding valve (12) is electrically connected with the control mechanism.
3. The multi-layer vacuum cooling crystallization apparatus for magnesium vapor according to claim 1, characterized in that: when the number of the cylindrical crystallizers (6) in the vertical double-layer shell (1) is two or more, the cylindrical crystallizers (6) are coaxially arranged and have different diameters.
4. The multi-layer vacuum cooling crystallization apparatus for magnesium vapor according to claim 1, characterized in that: the plurality of water conveying pipes (10) in each interlayer cavity (2) are uniformly arranged in the interlayer cavity (2).
5. The multi-layer vacuum cooling crystallization apparatus for magnesium vapor according to claim 1, characterized in that: the cooling crystallization device also comprises a crystal sweeping assembly arranged inside the vertical double-layer shell (1), the crystal sweeping assembly comprises a driving motor (13) and a crystal sweeping frame (14), the crystal sweeping frame (14) comprises a plurality of fixed rods (1401) radially arranged in a horizontal circle and a plurality of crystal sweeping pieces arranged on the lower surfaces of the fixed rods (1401), the number of the crystal sweeping pieces is two times that of the cylindrical crystallizers (6) in the whole cooling crystallization device, the crystal sweeping pieces correspond to the inner wall and the outer wall of the cylindrical crystallizers (6) and the inner wall of the vertical double-layer shell (1) one by one respectively so as to realize the sweeping of cooled crystal magnesium on the inner wall or the outer wall of the cylindrical crystallizers (6) or the inner wall of the vertical double-layer shell (1), and each crystal sweeping piece comprises two fixed rings (1402) which are arranged in an up-down corresponding mode, at least one crystal sweeping rod (1403) is vertically arranged between two fixing rings (1402) corresponding to the upper and lower parts, the distance between the crystal sweeping rod (1403) and the inner wall or the outer wall of the cylindrical crystallizer (6) corresponding to the crystal sweeping rod or the inner wall of the vertical double-layer shell (1) is 5-15mm, the driving motor (13) is arranged at the top of the vertical double-layer shell (1) and is electrically connected with the control mechanism, and the driving motor can drive the whole crystal sweeping rack (14) to perform rotary crystal sweeping operation under the control of the control mechanism.
6. The multi-layer vacuum cooling crystallization apparatus for magnesium vapor according to claim 5, characterized in that: when a plurality of crystal sweeping rods (1403) are arranged between the two fixing rings (1402) which are vertically corresponding to each other, the plurality of crystal sweeping rods (1403) are uniformly arranged along the circumferential direction of the fixing rings (1402).
7. The multi-layer vacuum cooling crystallization apparatus for magnesium vapor according to claim 5, characterized in that: the fixing rods (1401) are of an integral structure, and the fixing rods (1401) are uniformly arranged along the circumferential direction of a circle where the fixing rods are located.
8. The multi-layer vacuum cooling crystallization apparatus for magnesium vapor according to claim 5, characterized in that: and a sealing bearing for fixing is arranged between the lower part of the crystal sweeping frame (14) and the inner wall surface of the vertical double-layer shell (1).
CN202010717888.6A 2020-07-23 2020-07-23 Multi-layer vacuum cooling crystallization device for magnesium vapor Pending CN111870989A (en)

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Application Number Priority Date Filing Date Title
CN202010717888.6A CN111870989A (en) 2020-07-23 2020-07-23 Multi-layer vacuum cooling crystallization device for magnesium vapor

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Application Number Priority Date Filing Date Title
CN202010717888.6A CN111870989A (en) 2020-07-23 2020-07-23 Multi-layer vacuum cooling crystallization device for magnesium vapor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117821766A (en) * 2024-01-18 2024-04-05 宜兴市中辉模具制造有限公司 Electroslag remelting device for steel ingot processing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117821766A (en) * 2024-01-18 2024-04-05 宜兴市中辉模具制造有限公司 Electroslag remelting device for steel ingot processing

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