CN210657096U - Aluminum alloy melt purification device - Google Patents
Aluminum alloy melt purification device Download PDFInfo
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- CN210657096U CN210657096U CN201921334796.9U CN201921334796U CN210657096U CN 210657096 U CN210657096 U CN 210657096U CN 201921334796 U CN201921334796 U CN 201921334796U CN 210657096 U CN210657096 U CN 210657096U
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Abstract
An aluminum alloy melt purifying device belongs to the field of aluminum alloy casting processing, and comprises a melt pool and an upper cover, wherein the melt pool is provided with a liquid inlet and a liquid outlet, the upper cover extends downwards to form two first baffle plates which are parallel and spaced, the pool bottom of the melt pool extends upwards to form a second baffle plate, two sides of each of the first baffle plates and the second baffle plates are fixedly connected with the side wall of the melt pool, the melt pool is sequentially divided into a liquid storage area, a first degassing area, a second degassing area and a filtering area, the pool bottom of the second degassing area of the melt pool is provided with an air inlet, air bricks are laid in the air inlet, and gas of an external first gas source forms tiny bubbles in melt of the second degassing area through the air bricks; the top in first degasification district and second degasification district has the air chamber, is equipped with the getter device with fuse-element liquid level interval in the air chamber, and this getter device includes that one end opens the dustcoat that has the induction port, and the other end of dustcoat communicates to the outlet duct, and the outlet duct passes the upper cover and communicates to the air exhauster for with the waste gas suction in the degasification district.
Description
Technical Field
The utility model belongs to the technical field of the processing of aluminum alloy casting, in particular to aluminum alloy melt purifier.
Background
In the process of smelting aluminum alloy, gas, various inclusions, other metal impurities and the like in the melt often cause the defects of bubbles, pores, looseness, cracks, white spots and the like of the aluminum alloy ingot, and have obvious influence on the processing performance of the ingot, the strength, the plasticity, the corrosion resistance and the appearance quality of products. The melt purifying technology is a technological process for removing gas, inclusion and harmful elements from aluminium alloy melt based on physical and chemical principles and corresponding technological measures so as to obtain pure metal melt.
If the utility model patent of china that the publication number is CN201605306U of granting discloses an online degassing filter equipment of aluminum alloy fuse-element, and the device includes fuse-element pond and upper cover, and the fuse-element pond is separated for three district by two vertical partition walls, and the fuse-element flows through first district, second district and third district in proper order. The first area and the second area are provided with ventilating devices to play a role in degassing, and the third area is provided with a filter disc to play a role in impurity removal.
However, the aluminum alloy melt flows through the first zone and the second zone first, and because the flow rate of the melt is low, oxide impurities with high density suspended in the melt are easy to precipitate and deposit at the bottom of the tank, so that a ventilating device at the bottom of the tank is blocked. The fusant flows into the third area after degassing for filtration, and impurities are attached to the filter disc due to the fact that the fusant flows through the filter disc from top to bottom, and the filtering quality and the service life of the filter disc are affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an aluminum alloy melt purifier that degassing, filter effect are good is provided.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model provides an aluminum alloy fuse-element purifier, includes fuse-element pond and upper cover, the relative both sides in fuse-element pond are equipped with inlet and liquid outlet respectively, the bottom downwardly extending of upper cover has two parallel spaced first deflectors, the bottom of fuse-element pond upwards extends to have and is located between two first deflectors and with the parallel spaced second deflector of first deflector, there is the space between the bottom of first deflector and the bottom of fuse-element pond to be less than inlet and liquid outlet, there is the space between the top of second deflector and the upper cover, be higher than the bottom of first deflector and also be less than inlet and liquid outlet, the both sides of first deflector and second deflector all with fuse-element pond's lateral wall fixed connection, separate the fuse-element pond for liquid storage district, first degasification district, second degasification district and filtering area in proper order, the fuse-element flows through liquid storage district after entering the fuse-element pond from the inlet in proper order, The first degassing area, the second degassing area and the filtering area flow out of the liquid outlet;
an air inlet is formed in the bottom of the second degassing region of the melt pool, air bricks are laid in the air inlet, and the gas of an external first gas source forms micro bubbles in the melt of the second degassing region through the air bricks;
the liquid outlet is lower than the liquid inlet, so that the tops of the first degassing area and the second degassing area are provided with air cavities, air suction devices spaced with the liquid level of the melt are arranged in the air cavities, each air suction device comprises an outer cover with an air suction port opened at one end, the other end of the outer cover is communicated to an air outlet pipe, and the air outlet pipe penetrates through an upper cover and is communicated to an air exhauster for sucking out waste gas in the degassing area.
Preferably, an inner cover is arranged in an outer cover of the air suction device, a gap is formed between the inner cover and the outer cover, one end of the inner cover, which is on the same side with the air suction port, is opened to form an opening, an air blowing mechanism is arranged in the inner cover and comprises an air outlet facing the opening of the inner cover, the air blowing mechanism is communicated to one end of an air inlet pipe, the part of the air inlet pipe is positioned in the air outlet pipe and extends in the same direction as the air outlet pipe, the part of the air inlet pipe, which is exposed out of the air outlet pipe, is connected to an external second air source, air of the second air source is blown out from the air outlet through the air inlet pipe, and waste gas in the air removing area is.
Preferably, the air blowing mechanism comprises a connecting pipe and a rotating arm, the connecting pipe, the inner cover and the outer cover are coaxially arranged, the connecting pipe is connected with the inner cover, one end of the connecting pipe is communicated to the air inlet pipe, the rotating arm is vertically arranged with the connecting pipe, the other end of the connecting pipe is connected with the middle position of the rotating arm through a bearing, the connecting pipe is communicated with the rotating arm, the rotating arm is provided with an air outlet, and the rotating arm is driven by power of a second air source to rotate around the axial direction of the connecting pipe and blow air towards the outside of an opening of the inner cover.
Preferably, the air outlet is provided on one side of the circumferential surface of the rotating arm facing the opening of the inner cover, and a plurality of air outlets are provided at intervals along the length direction of the rotating arm, the axial direction of the air outlet is inclined toward both sides of the rotating arm with respect to the axial direction of the connecting pipe, and the inclination direction of the air outlet on one side of the connecting pipe with respect to the axial direction of the connecting pipe is opposite to the inclination direction of the air outlet on the other side with respect to the axial direction of the connecting pipe.
preferably, on a radial cross section of the rotating arm, an included angle (α) between the axial direction of the air outlet and the axial direction of the connecting pipe is 12-17 degrees.
Preferably, the ratio of the outer diameter of the inner shroud to the inner diameter of the outer shroud is 14/19.
Preferably, the outer side wall of the inner cover is provided with a butting block which protrudes towards the outer cover and butts against the outer cover.
As preferred, be equipped with stirring aerating device in the first degasification district, stirring aerating device includes rotor, pivot and outer tube, the outer tube is hollow body, outer tube top-down passes the upper cover, the upper end of outer tube is equipped with the motor, the bottom of outer tube is inserted and is located the fuse-element, the part that the outer tube is located the fuse-element has a plurality of exhaust holes, the lower extreme of outer tube is fixed in to the rotor, and the hollow cavity of outer tube is located in the pivot, and the motor is connected through the pivot with the rotor, the upper end of outer tube is connected with external third air supply for inject inert gas in the fuse-element of first degasification district and smash into homodisperse's small bubble through the rotation of outer tube.
Preferably, two layers of ceramic filter sheets are arranged in the filtering area.
Preferably, the bottoms of the second degassing zone and the filtering zone are inclined, and the bottom of the second degassing zone is higher.
Compared with the prior art, the utility model provides an aluminum alloy fuse-element purifier's advantage lies in
1) The air brick and the stirring and inflating device are arranged, inert gas is injected into the melt to form micro bubbles, the micro bubbles can absorb gas in the melt when rising in the melt and adsorb impurities, and then the impurities are taken out to the upper surface of the melt, and the air suction device is arranged in the aluminum alloy melt purifying device and can suck waste gas above and on the surface of the melt to prevent the waste gas from being re-dissolved in the melt, so that the purifying effect is generated;
2) because the air blowing device is arranged in the outer cover of the air suction device, negative pressure can be generated in the range of the outer cover, and the exhaust gas can be sucked out more conveniently;
3) the impurity in the fuse-element is further filtered out through the ceramic filter of filtering area, because the fuse-element pond bottom of the pool in second degasification district is higher than the bottom of the pool in filtering area, the great oxide impurity of filtering area below density can flow the lowest department of filtering area by the action of gravity to can not block up the air brick of second degasification district bottom of the pool, and then guarantee purifying effect.
Drawings
FIG. 1 is a schematic sectional view of an aluminum alloy melt purification apparatus in the present embodiment;
fig. 2 is a schematic structural diagram of the air suction device in the present embodiment.
In the figure, 1, a melt pool; 11. a liquid inlet; 12. a liquid outlet; 13. a second baffle plate; 14. a liquid storage area; 15. a first deaeration zone; 16. a second deaeration zone; 17. a filtration zone; 18. an air inlet; 2. an upper cover; 21. a first baffle plate; 31. air permeable bricks; 32. a first gas source; 4. a suction device; 41. a housing; 42. an air outlet pipe; 43. an exhaust fan; 44. an inner cover; 441. a butting block; 45. a blowing mechanism; 451. a connecting pipe; 452. a rotating arm; 4521. an air outlet; 46. an air inlet pipe; 47. a second gas source; 51. a rotor; 52. a rotating shaft; 53. an outer tube; 531. an exhaust hole; 54. a motor; 55. a third gas source; 6. a ceramic filter disc.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
An aluminum alloy melt purifying device is shown by combining figures 1 and 2, and comprises a melt pool 1 and an upper cover 2, wherein two opposite sides of the melt pool 1 are respectively provided with a liquid inlet 11 and a liquid outlet 12, the bottom of the upper cover 2 extends downwards to form two parallel and spaced first baffle plates 21, the bottom of the melt pool 1 extends upwards to form a second baffle plate 13 which is positioned between the two first baffle plates 21 and is spaced from the first baffle plates 21 in parallel, a gap is formed between the bottom of the first baffle plates 21 and the bottom of the melt pool 1 and is lower than the liquid inlet 11 and the liquid outlet 12, a gap is formed between the top of the second baffle plates 13 and the upper cover 2, the gap is higher than the bottom of the first baffle plates 21 and is also lower than the liquid inlet 11 and the liquid outlet 12, the two sides of the first baffle plates 21 and the second baffle plates 13 are fixedly connected with the side wall of the melt pool 1, and the melt pool 1 is sequentially divided into a liquid storage area, A second degassing zone 16 and a filtering zone 17, wherein the melt flows through the liquid storage zone 14, the first degassing zone 15, the second degassing zone 16 and the filtering zone 17 in sequence after entering the melt pool 1 from the liquid inlet 11 and then flows out from the liquid outlet 12.
The melt pool 1 is provided with a gas inlet 18 at the bottom of the second degassing region 16, a gas permeable brick 31 is laid in the gas inlet 18, the gas of an external first gas source 32 forms micro bubbles in the melt of the second degassing region 16 through the gas permeable brick 31, and the micro bubbles can absorb the gas in the melt and adsorb impurities when rising in the melt, and then are taken out to the upper surface of the melt, thereby generating the effect of purifying the melt.
Specifically, an inner cover 44 is arranged in an outer cover 41 of the air suction device 4, a gap is formed between the inner cover 44 and the outer cover 41, one end of the inner cover 44 on the same side with the air suction port is opened and provided with an opening, an air blowing mechanism 45 is arranged in the inner cover 44, the air blowing mechanism 45 comprises an air outlet 4521 which is opened towards the inner cover 44, the air blowing mechanism 45 is communicated to one end of an air inlet pipe 46, part of the air inlet pipe 46 is positioned in the air outlet pipe 42 and extends in the same direction with the air outlet pipe 42, the part of the air inlet pipe 46 exposed out of the air outlet pipe 42 is connected to an external second air source 47, air of the second air source 47 is blown out from the air outlet 4521 through the air inlet pipe 46, and waste gas in.
The blowing mechanism 45 comprises a connecting pipe 451 and a rotating arm 452, the connecting pipe 451, an inner cover 44 and an outer cover 41 are coaxially arranged, the connecting pipe 451 is connected with the inner cover 44, one end of the connecting pipe 451 is communicated to an air inlet pipe 46, the rotating arm 452 is vertically arranged with the connecting pipe 451, the other end of the connecting pipe 451 is connected with the middle position of the rotating arm 452 through a bearing, the connecting pipe 451 is communicated with the rotating arm 452, an air outlet 4521 is arranged on the rotating arm 452, and the rotating arm 452 is driven by power of a second air source 47 to rotate around the axial direction of the connecting pipe 451 and blow air towards the outside.
the gas outlet 4521 is provided on one side of the circumferential surface of the rotating arm 452 which opens to the inner cover 44, and a plurality of gas outlets 4521 are provided at intervals along the longitudinal direction of the rotating arm 452, the axial direction of the gas outlet 4521 is inclined toward both sides of the rotating arm 452 with respect to the axial direction of the connecting pipe 451, and the inclination direction of the gas outlet 4521 on one side of the connecting pipe 451 with respect to the axial direction of the connecting pipe 451 is opposite to the inclination direction of the gas outlet 4521 on the other side with respect to the axial direction of the connecting pipe 451.
The outer side wall of the inner cover 44 is provided with a plurality of abutting blocks 441 protruding toward the outer cover 41, and preferably, the abutting blocks 441 are arranged at intervals along the circumferential direction of the outer side wall of the inner cover 44, and the abutting blocks 441 extend along the axial direction of the inner cover 44, and the abutting blocks 441 abut against the inner wall of the outer cover 41 to restrict and keep the interval between the inner cover 44 and the outer cover 41 constant.
The stirring and inflating device is arranged in the first degassing region 15 and comprises a rotor 51, a rotating shaft 52 and an outer tube 53, the outer tube 53 is a hollow tube body, the outer tube 53 penetrates through the upper cover 2 from top to bottom, a motor 54 is arranged at the upper end of the outer tube 53, the bottom of the outer tube 53 is inserted into the melt, a plurality of exhaust holes 531 are formed in the part, located in the melt, of the outer tube 53, the rotor 51 is fixed at the lower end of the outer tube 53, the rotating shaft 52 is arranged in a hollow cavity of the outer tube 53, the motor 54 is connected with the rotor 51 through the rotating shaft 52, and the upper end of the outer tube 53 is connected with an external third gas source 55 and used for injecting inert gas into the melt of the first degassing region 15 and smashing the inert gas. Preferably, graphite materials are used for the outer tube 53, the rotor 51 and the rotating shaft 52.
Two layers of ceramic filter sheets 6 are arranged in the filter area 17 and are used for filtering impurities in the melt. The tank bottoms of the second degassing zone 16 and the filtering zone 17 are inclined, the tank bottom of the second degassing zone 16 is higher, and the oxide impurities with higher density below the filtering zone 17 can flow to the lowest part of the filtering zone 17 under the action of gravity, so that the air brick 31 at the tank bottom of the second degassing zone 16 can not be blocked, and the purifying effect is further ensured.
The gases injected into the melt by first gas source 32, second gas source 47, and third gas source 55 in this embodiment are all inert gases or inert gases with a small amount of nitrogen.
Compared with the prior art, the utility model provides an aluminum alloy fuse-element purifier's advantage lies in
Through setting up air brick 31 and stirring aerating device, inject inert gas into the fuse-element and form the microbubble, the microbubble can absorb the gas in the fuse-element when rising in the fuse-element to adsorb impurity, then take it out to the fuse-element upper surface, be equipped with getter device 4 among this aluminum alloy fuse-element purification device, can avoid this waste gas redissolution in the fuse-element with the waste gas suction of fuse-element top and surface, thereby produce purifying effect.
The invention is described above with reference to the accompanying drawings, it is obvious that the implementation of the invention is not limited in the above manner, and it is within the scope of the invention to adopt various modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (10)
1. The utility model provides an aluminum alloy melt purifier, includes melt pool (1) and upper cover (2), the relative both sides in melt pool (1) are equipped with inlet (11) and liquid outlet (12) respectively, its characterized in that: the bottom downwardly extending of upper cover (2) has two parallel spaced first bafflers (21), the bottom of pool of fuse-element pond (1) upwards extends has and is located between two first bafflers (21) and with parallel spaced second baffler (13) of first baffler (21), there is the space between the bottom of first baffler (21) and the bottom of pool of fuse-element pond (1) to be less than inlet (11) and liquid outlet (12), there is the space between the top of second baffler (13) and upper cover (2), is higher than the bottom of first baffler (21) and also is less than inlet (11) and liquid outlet (12), the both sides of first baffler (21) and second baffler (13) all with the lateral wall fixed connection of fuse-element pond (1), separate fuse-element pond (1) order for liquid storage district (14), first degasification district (15), The second degassing zone (16) and the filtering zone (17), and the melt flows through the liquid storage zone (14), the first degassing zone (15), the second degassing zone (16) and the filtering zone (17) in sequence after entering the melt pool (1) from the liquid inlet (11) and then flows out from the liquid outlet (12);
the melt pool (1) is provided with an air inlet (18) at the bottom of the second degassing region (16), air bricks (31) are laid in the air inlet (18), and the gas of an external first gas source (32) forms micro bubbles in the melt of the second degassing region (16) through the air bricks (31);
the liquid outlet (12) is less than the liquid inlet (11), makes the top in first degasification district (15) and second degasification district (16) has the air chamber, be equipped with in the air chamber with fuse-element liquid level spaced getter device (4), this getter device (4) include that one end opens dustcoat (41) that have the induction port, the other end of dustcoat (41) communicates to outlet duct (42), outlet duct (42) pass upper cover (2) and communicate to air exhauster (43) for with the waste gas suction in the degasification district.
2. The aluminum alloy melt purification device of claim 1, wherein: an inner cover (44) is arranged in an outer cover (41) of the air suction device (4), a gap is formed between the inner cover (44) and the outer cover (41), one end of the inner cover (44) at the same side with the air suction port is opened and provided with an opening, an air blowing mechanism (45) is arranged in the inner cover (44), the air blowing mechanism (45) comprises an air outlet (4521) which is opened towards the inner cover (44), the blowing mechanism (45) is communicated to one end of the air inlet pipe (46), part of the air inlet pipe (46) is positioned in the air outlet pipe (42) and extends in the same direction with the air outlet pipe (42), the part of the air inlet pipe (46) exposed out of the air outlet pipe (42) is connected to an external second air source (47), the gas of the second gas source (47) is blown out from the gas outlet (4521) through the gas inlet pipe (46), waste gas in the degassing region is sucked into the gas outlet pipe (42) from a gap between the inner cover (44) and the outer cover (41) and then discharged.
3. The aluminum alloy melt purification apparatus of claim 2, wherein: the blowing mechanism (45) comprises a connecting pipe (451) and a rotating arm (452), the connecting pipe (451), an inner cover (44) and an outer cover (41) are coaxially arranged, the connecting pipe (451) is connected with the inner cover (44), one end of the connecting pipe (451) is communicated to the air inlet pipe (46), the rotating arm (452) is vertically arranged with the connecting pipe (451), the other end of the connecting pipe (451) is connected with the middle position of the rotating arm (452) through a bearing, the connecting pipe (451) is communicated with the rotating arm (452), the rotating arm (452) is provided with an air outlet (4521), and the rotating arm (452) is driven by a second air source (47) to axially rotate around the connecting pipe (451) and blow air outside an opening of the inner cover (44).
4. The aluminum alloy melt purification apparatus of claim 3, wherein: the gas outlets (4521) are arranged on one side of the peripheral surface of the rotating arm (452) facing the opening of the inner cover (44), a plurality of gas outlets (4521) are arranged at intervals along the length direction of the rotating arm (452), the axial direction of the gas outlets (4521) is inclined towards two sides of the rotating arm (452) relative to the axial direction of the connecting pipe (451), and the inclined direction of the gas outlets (4521) on one side of the connecting pipe (451) relative to the axial direction of the connecting pipe (451) is opposite to the inclined direction of the gas outlets (4521) on the other side relative to the axial direction of the connecting pipe (451).
5. The aluminum alloy melt purification apparatus of claim 4, wherein: on the radial cross section of the rotating arm (452), an included angle between the axial direction of the air outlet (4521) and the axial direction of the connecting pipe (451) is 12-17 degrees.
6. The aluminum alloy melt purification apparatus of claim 4, wherein: the ratio of the outer diameter of the inner shroud (44) to the inner diameter of the outer shroud (41) is 14/19.
7. The aluminum alloy melt purification apparatus of claim 4, wherein: the outer side wall of the inner cover (44) is provided with an abutting block (441) which protrudes towards the outer cover (41) and abuts against the outer cover (41).
8. An aluminium alloy melt purification apparatus according to any one of claims 1 to 7, wherein: a stirring and aerating device is arranged in the first degassing area (15), the stirring and aerating device comprises a rotor (51), a rotating shaft (52) and an outer pipe (53), the outer pipe (53) is a hollow pipe body, the outer pipe (53) penetrates through the upper cover (2) from top to bottom, the upper end of the outer pipe (53) is provided with a motor (54), the bottom of the outer pipe (53) is inserted into the melt, the part of the outer pipe (53) in the melt is provided with a plurality of vent holes (531), the rotor (51) is fixed at the lower end of the outer tube (53), the rotating shaft (52) is arranged in the hollow cavity of the outer tube (53), the motor (54) is connected with the rotor (51) through the rotating shaft (52), the upper end of the outer pipe (53) is connected with an external third air source (55), the device is used for injecting inert gas into the melt of the first degassing area (15) and breaking the inert gas into uniformly dispersed micro-bubbles through the rotation of the outer pipe (53).
9. The aluminum alloy melt purification device of claim 8, wherein: two layers of ceramic filter sheets (6) are arranged in the filtering area (17).
10. The aluminum alloy melt purification device of claim 9, wherein: the tank bottoms of the second degassing zone (16) and the filtering zone (17) are inclined, and the tank bottom of the second degassing zone (16) is higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921334796.9U CN210657096U (en) | 2019-08-16 | 2019-08-16 | Aluminum alloy melt purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921334796.9U CN210657096U (en) | 2019-08-16 | 2019-08-16 | Aluminum alloy melt purification device |
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| Publication Number | Publication Date |
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| CN210657096U true CN210657096U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921334796.9U Active CN210657096U (en) | 2019-08-16 | 2019-08-16 | Aluminum alloy melt purification device |
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| CN (1) | CN210657096U (en) |
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