CN102828041B - Rotary pulse type aluminum alloy refining device - Google Patents

Rotary pulse type aluminum alloy refining device Download PDF

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Publication number
CN102828041B
CN102828041B CN 201210358862 CN201210358862A CN102828041B CN 102828041 B CN102828041 B CN 102828041B CN 201210358862 CN201210358862 CN 201210358862 CN 201210358862 A CN201210358862 A CN 201210358862A CN 102828041 B CN102828041 B CN 102828041B
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China
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stator
rotor
refining device
disk
alloy refining
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CN 201210358862
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Chinese (zh)
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CN102828041A (en
Inventor
吴士平
郭景杰
苏彦庆
王亮
王惠
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Harbin Institute of Technology
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Harbin Institute of Technology
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Abstract

The invention provides a rotary pulse type aluminum alloy refining device, and relates to an aluminum alloy refining device, aiming at solving the problem that the performance of an aluminum alloy melt body is reduced since the aluminum alloy melt body easily absorbs the steam in air in the process of smelting, steam is changed into hydrogen atoms so as to be dissolved in the aluminum alloy melt body, the hydrogen is separated out in the manner of gas along with the decrease of the temperature, and the continuity of the tissue section of the aluminum alloy is destroyed. A hanger frame is fixedly connected with a hanger ring, a motor and a coupler are arranged in the hanger frame, a stator rod is fixedly connected on the hanger frame, one end of a rotor rod is connected with a rotor disc, the other end of the rotor rod is connected with the motor, the side wall of the rotor rod is provided with a plurality of first through holes, the side wall of the stator rod is provided with an air inlet hole, the lower end of the stator rod is fixedly connected with a stator disc, the stator disc is provided with a ring-shaped boss, the rotor disc is adjacent to the ring-shaped boss, a blowing disc body is assembled by the stator disc and the rotor disc, a plurality of second through holes are arranged on the stator disc, and an air passage is formed between the stator disc and the rotor rod. The rotary pulse type aluminum alloy refining device is used for refining the aluminum alloy melt body.

Description

Rotary pulsed formula alloy refining device
Technical field
The present invention relates to a kind of alloy refining device, be specifically related to a kind of rotary pulsed formula alloy refining device.
Background technology
Development along with China's economic technology, exploitation is efficient, environmental protection, clean Treatment Technology of Molten Aluminum Alloy, just becoming the developing direction of refining techniques, pulse gassing method refining techniques is also a kind of of air blast refining techniques, it is in the time of blowing continuously, can realize the control to gas flow, can control to a certain extent size and the density of bubble, realize accurately controlling bubble, yet, most pulse is many to be controlled on the source of gas, it is controlled effect and needs to improve, in refining process, aluminium alloy melt is easy to absorb airborne water vapour and changes hydrogen atom into and then be dissolved in aluminium alloy melt in fusion process, in solidifying subsequently along with the reduction of temperature, the solubleness of hydrogen reduces, cause hydrogen to be separated out in the mode of gas, destroyed the continuity of section, cause performance to reduce, therefore, in industrial production, need aluminium alloy melt is carried out to refining treatment, remove hydrogen and other impurity in aluminium alloy melt, high-quality aluminium alloy melt is provided.
Can be divided into two classes in the treatment technology of aluminium alloy melt, one class is the refining techniques with refining agent, for example adopt the refining techniques that hexachloroethane is refining agent, can obtain good refining effect, but, because the chemical reaction that this process occurs is emitted a large amount of chlorine, therefore operator and environment are caused to great pollution, another kind of technology is to utilize bubble method, by diffusion, realize removing the method for hydrogen, at present, the rotary blowing technology extensively adopted, using rare gas element as carrier, gas by the winding-up high speed rotating, form bubble, realize the purpose of dehydrogenation, but, this method causes the rolling that alloy melt is huge, form a large amount of inclusiones, cause secondary pollution.The refining techniques of in addition solvent method being combined with blowing process in addition.In a word, there is the airborne water vapour of easy absorption in aluminium alloy melt and changes hydrogen atom into and then be dissolved in aluminium alloy melt in fusion process, and along with the reduction of temperature, hydrogen is separated out in the mode of gas, destroyed the continuity of aluminum alloy organization's section, the problem that causes its performance to reduce.
Summary of the invention
The purpose of this invention is to provide a kind of rotary pulsed formula alloy refining device, easily absorb airborne water vapour and change hydrogen atom into and then be dissolved in aluminium alloy melt in fusion process to solve aluminium alloy melt, reduction along with temperature, hydrogen is separated out in the mode of gas, destroyed the continuity of aluminum alloy organization's section, the problem that causes its performance to reduce.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: described rotary pulsed formula alloy refining device comprises suspension ring, motor, suspension bracket, shaft coupling, stator pole, stator discs, rotor shaft and rotor disk, the top of described suspension bracket is fixedly connected with suspension ring, described motor and shaft coupling all are positioned at the inside of suspension bracket, motor is fixedly connected with suspension bracket, shaft coupling is positioned at the below of motor, the upper end of stator pole is fixedly connected on suspension bracket, one end of described rotor shaft is sleeved on the inside of stator pole and is connected with rotor disk, the other end of rotor shaft is connected with the output shaft of motor by shaft coupling, the rotor shaft sidewall is processed with a plurality of the first through holes near lower end, the stator pole sidewall is processed with inlet mouth near upper end, the lower end of stator pole is fixedly connected with stator discs, the periphery of the lower surface of stator discs is provided with annular boss, rotor disk is positioned at the bottom of stator discs, the upper surface of rotor disk is pressed close to mutually with the lower surface of the annular boss of stator discs, constitute the air blowing disk body by stator discs and rotor disk, the upper surface of rotor disk is processed with many grooves, be processed with a plurality of the second through holes on the card of stator discs, form venting channels between rotor shaft and stator pole, described venting channels is communicated with the air blowing disk body by a plurality of the first through holes.
The beneficial effect that the present invention compared with prior art comprises is:
One, structure design of the present invention is novel rationally, when working, the present invention can form evenly tiny bubble, and the operation of bubble approaches laminar flow, the present invention is static fine bubble generating apparatus, the bubble that the present invention produces is static in uphill process, uniformly, tiny, refining effect of the present invention is good, at refining process, can not cause acutely seething of melt;
Two, a plurality of the second through holes on stator discs of the present invention are the key structures that produce the pulse bubble, and the distribution by controlling a plurality of the second through holes and diameter can be controlled spacing between bubble and the size of bubble, and the interval of bubble relies on pulse to control;
Three, described venting channels of the present invention is communicated with the air blowing disk body by a plurality of the first through holes, be set to like this gas flow passage is provided, gas is introduced in rotor disk and the formed air blowing disk body of stator discs by a plurality of the first through holes on rotor shaft after first being incorporated into venting channels, by electric machine control rotor shaft rotor driven dish, rotates and forms the pulse bubble;
Four, the present invention adopts rare gas element as refining gas, meet the requirement of environmental protection in refinery by de-gassing, refining gas enters by venting channels the static bubble that the air blowing disk body produces, then bubble evenly floats to be diffused in aluminium alloy melt obnoxious flavour is removed, the size that small bubbles produce relies on the diameter of a plurality of the second through holes on stator discs and the rotor disk circumgyration incision gas of stator discs the inside to make its gas by the ejection of air blowing disk body be intermittently (pulse) state, the spacing of bubble is controlled by the speed of rotation that changes rotor shaft, the density of bubble is controlled by the second through hole distribution density, the size of bubble is controlled by pressure and the flow of refining gas,
Five, realize the introducing of gas in the present invention by the inlet mouth on stator pole, feasibility is high, has avoided introducing along the bar direction phenomenon appearance that gas and upper motor interfere, and safe reliability is high.
The accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention, Fig. 2 is the main TV structure schematic diagram of stator discs, the cross-sectional view at the A-A place that Fig. 3 is Fig. 2, the main TV structure schematic diagram that Fig. 4 is rotor disk, the cross-sectional view at the B-B place that Fig. 5 is Fig. 4, the enlarged diagram that Fig. 6 is C place structure in Fig. 1.
Embodiment
Embodiment one: in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 illustrate present embodiment, described in present embodiment, rotary pulsed formula alloy refining device comprises suspension ring 1, motor 2, suspension bracket 3, shaft coupling 4, stator pole 5, stator discs 6, rotor shaft 7 and rotor disk 8, the top of described suspension bracket 3 is fixedly connected with suspension ring 1, described motor 2 and shaft coupling 4 all are positioned at the inside of suspension bracket 3, motor 2 is fixedly connected with suspension bracket 3, shaft coupling 4 is positioned at the below of motor 2, the upper end of stator pole 5 is fixedly connected on suspension bracket 3, one end of described rotor shaft 7 is sleeved on the inside of stator pole 5 and is connected with rotor disk 8, the other end of rotor shaft 7 is connected with the output shaft of motor 2 by shaft coupling 4, rotor shaft 7 sidewalls are processed with a plurality of the first through holes 10 near lower end, stator pole 5 sidewalls are processed with inlet mouth 16 near upper end, the lower end of stator pole 5 is fixedly connected with stator discs 6, the periphery of the lower surface of stator discs 6 is provided with annular boss, rotor disk 8 is positioned at the bottom of stator discs 6, the upper surface of rotor disk 8 is pressed close to mutually with the lower surface of the annular boss of stator discs 6, constitute air blowing disk body 13 by stator discs 6 and rotor disk 8, the upper surface of rotor disk 8 is processed with many grooves 11, be processed with a plurality of the second through holes 12 on the card of stator discs 6, form venting channels 9 between rotor shaft 7 and stator pole 5, described venting channels 9 is communicated with air blowing disk body 13 by a plurality of the first through holes 10.
In present embodiment, motor 2 and shaft coupling 4 are existing device, and model is not limit, and can configure according to concrete practical situation, realize that goal of the invention gets final product; Inlet mouth 16 is to arrange for rare gas element enters; In present embodiment, the bottom surface of stator discs 6 is provided with the stator disk cover, the stator disk cover is the flat cover structure, the stator disk cover is in order to be rotor shaft 7 to be installed arrange with rotor disk 8, and after rotor shaft 7 and rotor disk 8 install, the stator disk cover is closed fixing with stator discs 6 and got final product in sealed state.
Embodiment two: in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 6, present embodiment is described, the diameter of the second through hole 12 described in present embodiment is 0.5~2.0mm.The formed Air Bubble Size of the second through hole 12 in this diameter range is the most applicable, and uniform and stable, more is conducive to realize goal of the invention of the present invention.Other method steps is identical with embodiment one.
Embodiment three: in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 6, present embodiment is described, the junction sealing of stator pole described in present embodiment 5 and rotor shaft 7 arranges, and the junction sealing of stator pole 5 and stator discs 6 arranges.Setting can improve the sealing effectiveness of integral body of the present invention like this, is conducive to realize better purpose of the present invention, and the more gas of the interior introducing of disk body 13 that makes to blow, produce more bubble.Other method steps is identical with embodiment one or two.
Embodiment four: in conjunction with Fig. 1, Fig. 4, Fig. 5 and Fig. 6, present embodiment is described, many grooves 11 described in present embodiment are symmetrical arranged with respect to the medullary ray of rotor disk 8.Arrange and make rotor disk 8 can reach better working effect when high speed rotating like this.Other method steps is identical with embodiment three.
Embodiment five: in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 6, present embodiment is described, described in present embodiment, a plurality of the second through holes 12 are distributed on the end face of stator discs 6 centered by the center of circle of stator discs 6.The better effects if of the bubble that while arranging like this, stator discs 6 produces when work.Other method steps is identical with embodiment four.
Embodiment six: present embodiment is described in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, described in present embodiment, rotary pulsed formula alloy refining device also comprises fastening spring 14, and described fastening spring 14 is sleeved on rotor shaft 7 and is positioned at the below of shaft coupling 4.The reason that fastening spring 14 arranges like this is easily to melt distortion for fear of fastening spring 14 at aluminium alloy melt to follow the string, so select the position that is sleeved on rotor shaft 7 by fastening spring 14 and is positioned at the below of shaft coupling 4, be conducive to fastening spring 14 and effectively realize its clamping action, the effect of fastening spring 14 is to being clamped between stator discs 6 and rotor disk 8, utilize the pressure of fastening spring 14 to realize the control to gap between stator discs 6 and rotor disk 8.Other method steps is identical with embodiment two, four or five.
Embodiment seven: in conjunction with Fig. 1, present embodiment is described, described in present embodiment, rotary pulsed formula alloy refining device also comprises baffle plate 15, is set with baffle plate 15 on the body of rod of described stator pole 5.The setting of baffle plate 15 is to play the effect of blocking while working in crucible for the present invention, prevents that aluminium alloy melt from spilling outside crucible and hurt operator in refining process, guarantees that the present invention's safety carries out work smoothly.Other method steps is identical with embodiment six.
In conjunction with embodiment one, two, three, four, five, six and seven, principle of work of the present invention and operating process are described:
Principle of work of the present invention: rely on the relative movement of stator pole 5 and rotor shaft 7, utilize the groove 11 of offering on rotor disk 8, revolve blocking by a plurality of the second through holes 12 on stator discs 6 in the brick process at rotor disk 8, by the relative rotation between rotor disk 8 and stator discs 6, realize the open and close of the second through hole 12 ventilations is controlled, change according to rotating speed, not only realize the open and close to refining gas, and, because rotating speed is even, can realize the pulse (regular open and close) of the control of gas.
Operating process of the present invention: the present invention is arranged in the crucible that aluminium alloy melt is housed, at first refining gas is entered in stator pole 5 by associated pipe, then enter into the air blowing disk body 13 between stator discs 6 and rotor disk 8 by a plurality of the first through holes 10 on rotor shaft 7, and then by a plurality of the second through holes 12 on stator discs 6, enter into aluminium alloy melt, refining gas in air blowing disk body 13, along with rotor shaft 7 rotor driven dish 8 high speed rotating, open and close a plurality of the second through holes 12 on stator discs 6, form the pulse bubble, at air-flow under certain condition, the rotating speed that changes rotor shaft 7 can improve the frequency that bubble occurs, when air blowing disk body 13 and the first through hole 10 in normally open, now gas is unobstructed circulation status, only have when rotor shaft 7 rotation, utilize the non-NULL part on rotor disk 8 to be blocked the second through hole 12 on stator discs 6, realize the switching of the second through hole 12.

Claims (7)

1. rotary pulsed formula alloy refining device, described rotary pulsed formula alloy refining device comprises suspension ring (1), motor (2), suspension bracket (3), shaft coupling (4), stator pole (5), stator discs (6), rotor shaft (7) and rotor disk (8), it is characterized in that: the top of described suspension bracket (3) is fixedly connected with suspension ring (1), described motor (2) and shaft coupling (4) all are positioned at the inside of suspension bracket (3), motor (2) is fixedly connected with suspension bracket (3), shaft coupling (4) is positioned at the below of motor (2), the upper end of stator pole (5) is fixedly connected on suspension bracket (3), one end of described rotor shaft (7) is sleeved on the inside of stator pole (5) and is connected with rotor disk (8), the other end of rotor shaft (7) is connected with the output shaft of motor (2) by shaft coupling (4), rotor shaft (7) sidewall is processed with a plurality of the first through holes (10) near lower end, stator pole (5) sidewall is processed with inlet mouth (16) near upper end, the lower end of stator pole (5) is fixedly connected with stator discs (6), the periphery of the lower surface of stator discs (6) is provided with annular boss, rotor disk (8) is positioned at the bottom of stator discs (6), the upper surface of rotor disk (8) is pressed close to mutually with the lower surface of the annular boss of stator discs (6), constitute air blowing disk body (13) by stator discs (6) and rotor disk (8), the upper surface of rotor disk (8) is processed with many grooves (11), be processed with a plurality of the second through holes (12) on the card of stator discs (6), form venting channels (9) between rotor shaft (7) and stator pole (5), described venting channels (9) is communicated with air blowing disk body (13) by a plurality of the first through holes (10),
The bottom surface of stator discs (6) is provided with the stator disk cover, the stator disk cover is the flat cover structure, the stator disk cover is to arrange with rotor disk (8) for rotor shaft (7) is installed, after rotor shaft (7) and rotor disk (8) install, the stator disk cover is closed fixing and in sealed state with stator discs (6).
2. rotary pulsed formula alloy refining device according to claim 1, it is characterized in that: the diameter of described the second through hole (12) is 0.5~2.0mm.
3. rotary pulsed formula alloy refining device according to claim 1 and 2, is characterized in that: the junction sealing setting of described stator pole (5) and rotor shaft (7) upper end, the junction sealing setting of stator pole (5) and stator discs (6).
4. rotary pulsed formula alloy refining device according to claim 3, it is characterized in that: described many grooves (11) are symmetrical arranged with respect to the medullary ray of rotor disk (8).
5. rotary pulsed formula alloy refining device according to claim 4, it is characterized in that: described a plurality of the second through holes (12) are distributed on the end face of stator discs (6) centered by the center of circle of stator discs (6).
6. according to claim 2,4 or 5 described rotary pulsed formula alloy refining devices, it is characterized in that: described rotary pulsed formula alloy refining device also comprises fastening spring (14), and described fastening spring (14) is sleeved on rotor shaft (7) above and is positioned at the below of shaft coupling (4).
7. rotary pulsed formula alloy refining device according to claim 6, it is characterized in that: described rotary pulsed formula alloy refining device also comprises baffle plate (15), is set with baffle plate (15) on the body of rod of described stator pole (5).
CN 201210358862 2012-09-24 2012-09-24 Rotary pulse type aluminum alloy refining device Expired - Fee Related CN102828041B (en)

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CN103642987B (en) * 2013-12-19 2015-12-30 西南铝业(集团)有限责任公司 A kind of degasifying device for smelting furnace
CN104975188A (en) * 2014-04-10 2015-10-14 苏州博能炉窑科技有限公司 Aluminum melt degassing device
GB201504296D0 (en) * 2015-03-13 2015-04-29 Univ Brunel Method and device for melt treatment to remove excessive inclusions and impurities and unwanted gases in aluminium alloy melts
CN107460333A (en) * 2016-06-02 2017-12-12 百色学院 A kind of injection air purifying apparatus for aluminium alloy smelting
CN111549236B (en) * 2019-02-28 2022-03-22 宁波锦越新材料有限公司 Linkage piece of purifying and crystallizing device for ultra-high-purity aluminum

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