CN213924967U

CN213924967U - High-purity aluminum directional solidification purification equipment

Info

Publication number: CN213924967U
Application number: CN202022437051.4U
Authority: CN
Inventors: 张瑾; 叶翔; 周建波
Original assignee: Ningbo Jinyue New Material Co ltd
Current assignee: Ningbo Jinyue New Material Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-08-10
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a high-purity aluminum directional solidification purification device, which comprises a smelting furnace shell, a purification device and a heating device, wherein the purification device and the heating device are alternately arranged and uniformly distributed to form an annular shape; the purifying device comprises a first shell, a first crucible and a stirring device, wherein a cooling cavity is arranged in the side wall of the first shell, flowing cooling water is arranged in the cooling cavity, a purifying cover is covered above the first crucible, and the stirring device is positioned at the axis of the purifying cover and can horizontally rotate; heating device includes the second casing, heat-conducting layer and second crucible, the lid is equipped with the heating bell directly over the second crucible, the central point of smelting furnace puts and is equipped with driving motor and action wheel, the bottom of second casing be equipped with the action wheel meshing from the driving wheel, can rotate for the second casing from the driving wheel, the bottom of second casing is equipped with the perforation, from the driving wheel through wear to establish the pivot in the perforation and be connected with the rotation platform that is located the second casing below, this equipment has improved high-purity aluminium's purification efficiency greatly.

Description

High-purity aluminum directional solidification purification equipment

Technical Field

The utility model relates to a pure aluminium purification equipment, in particular to high-purity aluminium directional solidification purification equipment.

Background

The purification of aluminum by segregation is an industrially applied process, and the segregation purification technology mainly comprises a distributed crystallization method, a zone melting method and a directional solidification method at present. The directional solidification method can be divided into a cooling tube solidification method, a bottom cooling method, a side wall cooling method, an upper lifting solidification method, a transverse solidification method and the like; the directional solidification method has the advantages of low energy consumption, relatively simple equipment and process and high actual yield, is suitable for mass production of 4N to 6N high-purity aluminum, and is the main research and development direction of high-purity aluminum purification technology.

Through the search and discovery of the prior art, in the utility model patent with application number 201420728053.0, disclosed is a high-purity aluminum directional solidification short-flow purification device, which comprises a purification device and a heating device which are independent from each other, wherein the purification device comprises a cooling device, a purification heat conduction layer, a purification heat preservation crucible and a stirring device, a purification furnace cover is arranged right above the purification heat preservation crucible, a vacuumizing device and a temperature measuring device are respectively arranged at two sides of the purification furnace cover, and a first heating mechanism is arranged below the purification furnace cover; the heating device comprises a heat insulating layer, a heating heat conducting layer and a heating crucible, a heating furnace cover is arranged right above the heating crucible, a vacuumizing device and a temperature measuring device are respectively arranged on two sides of the heating furnace cover, a second heating mechanism is arranged below the heating furnace cover, a rotating platform and a rotating mechanism are arranged at the bottom of the heating crucible, and the rotating mechanism is driven by a transmission mechanism to rotate so as to drive the heating crucible and the internal materials to rotate. Adopt the utility model discloses can greatly improve the purification efficiency of high-purity aluminium, nevertheless foretell high-purity aluminium directional solidification short flow's purification efficiency still can not satisfy the demand, still has certain improvement space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a high-purity aluminum directional solidification purification equipment is provided, the problem of purification inefficiency has been solved.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the directional solidification and purification equipment for high-purity aluminum is characterized in that: the smelting furnace comprises a smelting furnace shell, wherein two purifying devices and two heating devices are arranged in the smelting furnace shell, and the purifying devices and the heating devices are alternately arranged and uniformly distributed to form a ring;

each purification device sequentially comprises a first shell, a first crucible and a stirring device from outside to inside, wherein a purification heat conduction layer is coated on the inner wall of the first shell, a cooling cavity is arranged in the side wall of the first shell, flowing cooling water is arranged in the cooling cavity, a purification cover is covered above the first crucible, a first heating mechanism is arranged in the first crucible on the purification cover, and the stirring device is positioned at the axis of the purification cover and can horizontally rotate;

each heating device sequentially comprises a second shell, a heating heat conduction layer and a second crucible from outside to inside, a heating furnace cover is covered right above the second crucible, and a second heating mechanism is arranged in the second crucible of the heating furnace cover; the smelting furnace is characterized in that a driving motor and a driving wheel are arranged at the center of the smelting furnace, driven wheels meshed with the driving wheel are arranged at the bottoms of the two second shells, the driven wheels can rotate relative to the second shells, through holes are formed in the bottoms of the second shells, and the driven wheels are connected with a rotating platform located in the second shells through rotating shafts penetrating the through holes.

Preferably, the through hole is connected with the rotating shaft through a first bearing.

Preferably, the bottom of the smelting furnace shell is provided with a positioning hole, the bottom of the rotating shaft is inserted in the positioning hole through a second shaft, and third bearings are arranged between the second shell and the driven wheel and between the driven wheel and the smelting furnace shell.

Preferably, the crucible furnace further comprises a rack and a conveying mechanism arranged on the rack, wherein the conveying mechanism comprises a plurality of mechanical arms, the mechanical arms are matched to lift the first crucible and the second crucible simultaneously, and then rotate around the axis of the smelting furnace shell, so that the first crucible can be placed into the second shell clockwise or anticlockwise, and the second crucible is placed into the first shell clockwise or anticlockwise.

Preferably, the frame including be located the smelting stove outer covering left and right sides the stand and with stand top fixed connection's backup pad, transport mechanism is including the hydro-cylinder of locating the backup pad top, the telescopic link of hydro-cylinder passes backup pad and backup pad below revolving cylinder fixed connection, revolving cylinder fixedly connected with annular setting element, the manipulator is equipped with four, every the manipulator with annular setting element connects, and is located annular setting element's below, revolving cylinder work can make annular setting element wind the telescopic link of hydro-cylinder rotates.

Preferably, the outer sides of the openings of the first crucible and the second crucible are respectively provided with at least three clamping grooves, each manipulator is correspondingly provided with mechanical claws, the number of the mechanical claws is the same as that of the clamping grooves, and the mechanical claws can correspondingly extend into the clamping grooves and are used for clamping the first crucible or the second crucible.

Preferably, the purification cover is provided with a first temperature detection device in the first crucible, and the heating furnace cover is provided with a second temperature detection device in the second crucible.

Compared with the prior art, the directional solidification and purification equipment for high-purity aluminum has the advantages that,

1. the utility model sets the purification device and the heating device into two mutually independent parts, so that the purification process can accurately control the solid-liquid interface to keep stable temperature gradient, and effectively reduce the concentration of impurities in the melt at the front edge of the solid-liquid interface, thereby controlling the solidification process and keeping higher purification efficiency and purification quality; in the heating process, the waste heat of the purified aluminum solid is utilized, and the second crucible is communicated with the aluminum solid to perform autorotation motion under the action of the rotating platform in cooperation with a high-heat-preservation heating device, so that the melting speed of the aluminum solid is accelerated, the purification action can be continued in the purification device, and the purification efficiency is effectively improved;

2. the same driving motor simultaneously drives the two second crucibles to rotate, and the transmission structure is simple;

3. accomplish when purification of purification device's a purification, will purify lid and heating furnace lid and lift, ladle out the molten aluminium liquid in the first crucible through the manual work, perhaps pour out the molten aluminium liquid in the first crucible through the machine, then press from both sides two first crucibles and two second crucibles simultaneously through the manipulator, revolving cylinder work clockwise rotation or anticlockwise rotation 90 degrees, put into heating device and purification device respectively with two first crucibles and two second crucibles again, thereby can effectually practice thrift the time of crucible converter, and then improve purification efficiency.

Drawings

FIG. 1 is a first schematic structural diagram of a directional solidification purification apparatus for high-purity aluminum in this embodiment;

FIG. 2 is a schematic structural diagram II of the directional solidification purification apparatus for high-purity aluminum in this embodiment;

FIG. 3 is a first schematic sectional view of the directional solidification purification apparatus for high purity aluminum in this embodiment;

FIG. 4 is a schematic sectional view of a second apparatus for directional solidification and purification of high purity aluminum in this embodiment;

FIG. 5 is a schematic view of the structure of the first crucible in this embodiment.

In the figure, 1, a smelting furnace shell; 11. positioning holes; 2. a purification device; 21. a first housing; 211. a cooling chamber; 22. a first crucible; 221. a card slot; 23. a stirring device; 24. a purification cover; 241. a first heating mechanism; 3. a heating device; 31. a second housing; 311. perforating; 32. heating the heat conduction layer; 33. a second crucible; 34. heating a furnace cover; 341. a second heating mechanism; 4. a circulating water tank; 51. a drive motor; 52. a driving wheel; 53. a driven wheel; 54. a rotating shaft; 55. rotating the platform; 56. a first bearing; 57. a second bearing; 58. a third bearing; 6. a frame; 61. a column; 62. a support plate; 7. a transport mechanism; 71. a manipulator; 72. an oil cylinder; 73. a rotating cylinder; 74. an annular positioning member.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The high-purity aluminum directional solidification purification equipment is shown by combining figures 1-5 and comprises a smelting furnace shell 1, wherein two purification devices 2 and two heating devices 3 are arranged in the smelting furnace shell 1, and the purification devices 2 and the heating devices 3 are alternately arranged and uniformly distributed to be surrounded into a ring shape.

Each purification device 2 sequentially comprises a first shell 21, a first crucible 22 and a stirring device 23 from outside to inside, the inner wall of the first shell 21 is coated with a purification heat conduction layer, a cooling cavity 211 is arranged in the side wall of the first shell 21, flowing cooling water is arranged in the cooling cavity 211, a water outlet is arranged at the bottom of the first shell 21, the cooling cavity 211 is communicated with an external circulating water tank 4 through the water outlet, a purification cover 24 is arranged on the upper side of the first crucible 22 in a covering mode, a first heating mechanism 241 is arranged in the first crucible 22 on the purification cover 24, and the stirring device 23 is located at the axis of the purification cover 24 and can rotate horizontally.

Each heating device 3 comprises a second shell 31, a heating heat conduction layer 32 and a second crucible 33 from outside to inside in sequence, a heating furnace cover 34 is covered right above the second crucible 33, and a second heating mechanism 341 is arranged in the second crucible 33 of the heating furnace cover 34. The purification lid 24 is provided with a first temperature detecting means in the first crucible 22, and the heating lid 34 is provided with a second temperature detecting means in the second crucible 33.

The central point of smelting furnace puts driving motor 51 and the action wheel 52 that sets up horizontally, the bottom of two second casings 31 all is equipped with the follow driving wheel 53 with action wheel 52 meshing, follow driving wheel 53 can rotate for second casing 31, the bottom of second casing 31 is equipped with perforation 311, follow driving wheel 53 through wear to establish pivot 54 in perforation 311 and be connected with the rotation platform 55 that is located second casing 31, rotation platform 55 sets up in second casing 31, second crucible 33 is placed on rotation platform 55, through the rotation of driving motor 51, drive action wheel 52 and two follow driving wheel 53 and rotate, and then drive second crucible 33 and rotate in second casing 31.

Preferably, the through hole 311 is connected with the rotating shaft 54 through a first bearing 56, the bottom of the smelting furnace shell 1 is provided with a positioning hole 11, the bottom of the rotating shaft 54 is inserted into the positioning hole 11 through a second bearing 57, and third bearings 58 are respectively arranged between the second shell 31 and the driven wheel 53 and between the driven wheel 53 and the smelting furnace shell 1.

The high-purity aluminum directional solidification purification equipment further comprises a rack 6 and a conveying mechanism 7 arranged on the rack 6, wherein the conveying mechanism 7 comprises a manipulator 71, the plurality of manipulators 71 are matched to lift the first crucible 22 and the second crucible 33 simultaneously, and then rotate around the axis of the smelting furnace shell 1, so that the first crucible 22 can be placed into the second shell 31 clockwise or anticlockwise, and the second crucible 33 can be placed into the first shell 21 clockwise or anticlockwise.

The frame 6 comprises upright posts 61 positioned at the left side and the right side of the smelting furnace shell 1 and a supporting plate 62 fixedly connected with the top ends of the upright posts 61, the conveying mechanism 7 comprises oil cylinders 72 arranged above the supporting plate 62, telescopic rods of the oil cylinders 72 penetrate through rotary cylinders 73 fixedly connected with the lower portions of the supporting plate 62 and the supporting plate 62, annular positioning pieces 74 are fixedly connected with the rotary cylinders 73, four mechanical hands 71 are arranged and respectively correspond to the purifying devices 2 and the heating devices 3 one by one, each mechanical hand 71 is connected with the annular positioning piece 74 and positioned below the annular positioning piece 74, and the rotary cylinders 73 work to enable the annular positioning pieces 74 to rotate around the telescopic rods of the oil cylinders 72.

The top of the first crucible 22 extends out of the first shell 21, the top of the second crucible 33 extends out of the second shell 31, the first crucible 22 and the second crucible 33 are identical in size and shape, at least three clamping grooves 221 are respectively formed in the outer sides of the openings of the first crucible 22 and the second crucible 33, each manipulator 71 is correspondingly provided with the same number of mechanical claws as the clamping grooves 221, and the mechanical claws can correspondingly extend into the clamping grooves 221 and are used for clamping the first crucible 22 or the second crucible 33.

Compared with the prior art, the directional solidification purification equipment for high-purity aluminum has the advantages that the purification device 2 and the heating device 3 are arranged into two mutually independent parts, so that the purification process can accurately control the temperature gradient of the solid-liquid interface to be stable, and the concentration of impurities in the melt at the front edge of the solid-liquid interface is effectively reduced, thereby controlling the solidification process and keeping higher purification efficiency and purification quality; in the heating process, the waste heat of the purified aluminum solid is utilized, and the high-heat-preservation heating device 3 is matched, so that the second crucible 33 is communicated with the aluminum solid to perform autorotation motion under the action of the rotating platform 55, the melting speed of the aluminum solid is accelerated, the purification action can be continued in the purification device 2, and the purification efficiency is effectively improved; the same driving motor 51 drives the two second crucibles 33 to rotate simultaneously, and the transmission structure is simple.

When the purification of purification device 2 is completed once, purification lid 24 and heating furnace lid 34 are lifted, the molten aluminum in first crucible 22 is ladled out manually, or the molten aluminum in first crucible 22 is poured out through a machine, then two first crucibles 22 and two second crucibles 33 are clamped simultaneously through manipulator 71, revolving cylinder 73 works and rotates clockwise or rotates anticlockwise for 90 degrees, then two first crucibles 22 and two second crucibles 33 are respectively placed into heating device 3 and purification device 2, thereby the time of crucible converter can be effectively saved, and further the purification efficiency is improved.

Although the preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The directional solidification and purification equipment for high-purity aluminum is characterized in that: the smelting furnace comprises a smelting furnace shell (1), wherein two purification devices (2) and two heating devices (3) are arranged in the smelting furnace shell (1), and the purification devices (2) and the heating devices (3) are alternately arranged and uniformly distributed to form a ring shape;

each purification device (2) sequentially comprises a first shell (21), a first crucible (22) and a stirring device (23) from outside to inside, a purification heat conduction layer is coated on the inner wall of the first shell (21), a cooling cavity (211) is arranged in the side wall of the first shell (21), flowing cooling water is arranged in the cooling cavity (211), a purification cover (24) is covered above the first crucible (22), a first heating mechanism (241) is arranged in the first crucible (22) on the purification cover (24), and the stirring device (23) is positioned at the axis of the purification cover (24) and can horizontally rotate;

each heating device (3) sequentially comprises a second shell (31), a heating heat conduction layer (32) and a second crucible (33) from outside to inside, a heating furnace cover (34) is covered right above the second crucible (33), and a second heating mechanism (341) is arranged in the second crucible (33) of the heating furnace cover (34); smelting furnace shell (1)'s central point puts and is equipped with driving motor (51) and action wheel (52), two the bottom of second casing (31) all be equipped with from driving wheel (53) of action wheel (52) meshing, from driving wheel (53) can for second casing (31) rotate, the bottom of second casing (31) is equipped with perforation (311), from driving wheel (53) through wearing to establish pivot (54) in perforation (311) are connected with rotation platform (55) that are located second casing (31).

2. The directional solidification purification apparatus for high purity aluminum according to claim 1, wherein: the through hole (311) is connected with the rotating shaft (54) through a first bearing (56).

3. The directional solidification purification apparatus for high purity aluminum according to claim 2, wherein: the smelting furnace is characterized in that a positioning hole (11) is formed in the bottom of the smelting furnace shell (1), the bottom of the rotating shaft (54) is inserted into the positioning hole (11) through a second bearing (57), and third bearings (58) are arranged between the second shell (31) and the driven wheel (53) and between the driven wheel (53) and the smelting furnace shell (1).

4. The directional solidification purification apparatus for high purity aluminum according to any one of claims 1 to 3, wherein: still include frame (6) and locate transport mechanism (7) on frame (6), transport mechanism (7) include manipulator (71), and are a plurality of manipulator (71) cooperation will first crucible (22) with second crucible (33) are lifted up simultaneously, then rotate around the axle center of smelting stove shell (1), make first crucible (22) can clockwise or anticlockwise put into in second casing (31), make simultaneously second crucible (33) clockwise or anticlockwise put into in first casing (21).

5. The directional solidification purification apparatus for high purity aluminum according to claim 4, wherein: frame (6) including be located the stand (61) of smelting stove outer covering (1) left and right sides and with stand (61) top fixed connection's backup pad (62), transport mechanism (7) are including oil cylinder (72) of locating backup pad (62) top, the telescopic link of oil cylinder (72) passes backup pad (62) and revolving cylinder (73) fixed connection of backup pad (62) below, revolving cylinder (73) fixedly connected with annular positioning piece (74), manipulator (71) are equipped with four, every manipulator (71) with annular positioning piece (74) are connected, and are located the below of annular positioning piece (74), revolving cylinder (73) work can make annular positioning piece (74) wind the telescopic link of oil cylinder (72) rotates.

6. The directional solidification purification apparatus for high purity aluminum according to claim 5, wherein: the opening outside of first crucible (22) with second crucible (33) equally divide and do not is equipped with at least three draw-in groove (221), every manipulator (71) correspond be equipped with draw-in groove (221) the same gripper of quantity, the gripper can correspond and stretch into in the draw-in groove (221), be used for the centre gripping first crucible (22) or second crucible (33).

7. The directional solidification purification apparatus for high purity aluminum according to claim 1, wherein: the purification cover (24) is provided with a first temperature detection device in the first crucible (22), and the heating cover (34) is provided with a second temperature detection device in the second crucible (33).