CN208333092U - Molten aluminum holding furnace with purification system - Google Patents
Molten aluminum holding furnace with purification system Download PDFInfo
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- CN208333092U CN208333092U CN201820594012.5U CN201820594012U CN208333092U CN 208333092 U CN208333092 U CN 208333092U CN 201820594012 U CN201820594012 U CN 201820594012U CN 208333092 U CN208333092 U CN 208333092U
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Abstract
The utility model relates to die casting equipment technical fields, provide a kind of molten aluminum holding furnace with purification system, which includes: furnace body, and furnace body is equipped with the parking space of storage molten aluminum, and the feed inlet being connected to parking space；Insulation cover, the insulation cover is for covering parking space and feed inlet；Depassing unit, the depassing unit is for removing the gas being stored in parking space in molten aluminum；Wherein, parking space includes: clean room, which is connected with feed inlet, and depassing unit is set to the clean room bottom；Liquid chamber is taken, this takes liquid chamber to be connected with clean room, so that user takes out molten aluminum.Molten aluminum holding furnace provided by the utility model can improve the service life of depassing unit while effectively removing the gas in molten aluminum, and reduce energy consumption.
Description
Technical field
The utility model relates to die casting equipment technical field, in particular to a kind of molten aluminum holding furnace with purification system.
Background technique
Compression casting, abbreviation die casting, it is intended to be liquid or semi-liquid metal with higher speed filling town under high pressure effect
Die-casting die chamber, and form under stress and solidify and the method that obtains casting, in die-casting process, the quality of molten aluminum directly affects pressure
The quality for casting product can make die casting product the bad phenomenons such as stomata occur, influence die casting appearance using underproof molten aluminum is purified
Even performance.
In response to the above problems, the utility model patent of Patent No. CN201320671177.5 gives a kind of aluminum anodizing
Degasification deslagging device, specifically: " aluminum anodizing degasification deslagging device, the holding furnace including upper end opening (1) with bracket (2), it is described
(1) (3) holding furnace has a lid, (3) lid passes through connecting rod and (4) connect with lifter plate, (4) lifter plate passes through hydraulic telescopic rod
(5) (2) it is connect with bracket, (6) the lower end of lid (3) is connected with agitating shaft, (7) the upper end of lid (3) is provided with driving motor, agitating shaft
(6) (3) upper end passes perpendicularly through lid and (7) connect with driving motor, the lower end of agitating shaft (6) be placed in holding furnace (1) in, it is described to stir
It mixes the lower end of axis (6) and is also connected with graphite rotator (8), the surface of graphite rotator (8) has multiple stomatas, (6) agitating shaft is hollow shaft,
Agitating shaft is (6) interior to be provided with ventilation pipe, and ventilation pipe one end is stretched out agitating shaft and (6) connect with nitrogen gas generator, ventilation pipe
The other end is connected to the stomata of graphite rotator (8)."
However, above scheme is in actual use, since the high temperature of molten aluminum influences, agitating shaft is handed in molten aluminum and air
Oxidation corrosion easily occurs at boundary, reduces the service life of agitating shaft, that is, reduces the service life of entire depassing unit, while by
Need to protrude into molten aluminum bottom in agitating shaft, therefore length, the weight of entire depassing unit are excessive, not only influence the opening of lid, give
The use of user is made troubles.
Utility model content
The purpose of the utility model is to provide making for depassing unit is improved while a kind of gas effectively removed in molten aluminum
With the service life, and reduce the molten aluminum holding furnace with purification system of energy consumption.The another object of the utility model is to provide a kind of behaviour
Author can be set according to actual needs corresponding temperature value as critical value to control opening/stopping for pharoid, make to radiate
The temperature of aluminum liquid detection method of the more reasonable convenient molten aluminum holding furnace of the work of heater.
The technical solution of the utility model are as follows: a kind of molten aluminum holding furnace with purification system, the holding furnace include:
Furnace body, the furnace body are equipped with the parking space of storage molten aluminum, and the feed inlet being connected to the parking space；
Insulation cover, the insulation cover is for covering the parking space and the feed inlet；
Depassing unit, the depassing unit is for removing the gas being stored in the parking space in molten aluminum；
Wherein, the parking space includes:
Clean room, the clean room are connected with the feed inlet, and the depassing unit is set to the clean room bottom；
Liquid chamber is taken, it is described that liquid chamber is taken to be connected with the clean room, so that user takes out molten aluminum.
Further, the depassing unit includes: degassing rotor, and the driving dress of the driving degassing rotor rotation
It sets；
Wherein the degassing rotor includes:
Degasification shaft, the degasification shaft are being axially arranged with venthole, and the first end of the degasification shaft is positioned at described net
Change interior, the second end of the degasification shaft is located at outside the furnace body, wherein the second end connects with the driving device；
Degasification turntable, the degasification turntable are set to the first end of the degasification shaft.
Further, the holding furnace further include: filter device, the filter device are used to filter the residue in molten aluminum；
Wherein, between the clean room and the inlet and/or clean room and described take are provided between liquid chamber
The installation position of the filter device can be installed.
Further, the filter device includes N number of filter plate；
The installation position includes the M mounting grooves that can be individually attached the filter plate, and the M mounting grooves are along molten aluminum
Flow direction is set gradually, wherein M >=N >=1.
Further, the holding furnace further include: pharoid, the pharoid are arranged in the insulation cover
Wall.
Further, the parking space side wall and bottom are equipped with insulating lining layer.
Further, the insulation cover is equipped with gas vent；
Device in one-way on state is equipped at the gas vent, to avoid outside air entrance.
Further, the insulation cover includes:
First capping, first capping is for covering the inlet；
Second capping, second capping is for covering the clean room；
Third capping, third capping described take liquid chamber for covering；
Wherein, first capping, second capping and third capping can be opened individually.
Further, the insulation cover is equipped with:
First window, the first window are oppositely arranged with the inlet；
Second window, second window take liquid chamber to be oppositely arranged with described；
Wherein, the first window and second window are openable.
Further, the holding furnace is additionally provided with the temperature detector of temperature of aluminum liquid in detectable furnace body, and with it is described
Temperature detector is electrically connected, and can control the controller of pharoid start and stop.
The utility model has the following beneficial effects:
(1) holding furnace provided by the utility model, depassing unit setting open insulation cover more in clean room bottom, operator
Add it is convenient and simple, in addition, in this way be arranged can avoid depassing unit contacted at work with air, to avoid depassing unit rotten
Deteriorate bad, improves the service life of depassing unit.Simultaneously because depassing unit setting reduces degasification dress in clean room bottom
The size set will not shake, be not easily broken so that having higher concentricity after degassing rotor installation, and security performance is high.
(2) the insulation cover of the utility model not only can reduce molten aluminum heat for covering parking space and feed inlet
It scatters and disappears, moreover it is possible to molten aluminum be avoided to contact with air, it is therefore prevented that molten aluminum is made the quality of molten aluminum be guaranteed by air pollution, improves
The quality of casting.
(3) the clean room of the utility model parking space is connected to feed inlet by undercurrent slot, and avoidable molten aluminum enters purification
It is contacted when room with air.
(4), since the depassing unit of the utility model is arranged in clean room bottom, depassing unit only needs shorter length
Meet the requirement for immersing molten aluminum degasification, keeps the installation of depassing unit more firm, improve the service life and safety of equipment
Energy.
(5) what the degassing rotor of the utility model can be set is smaller, shorter, and volume, weight are also greatly optimized
It reduces, reduces the requirement to driving device power, not only reduce production cost, moreover it is possible to realize the effect of energy-saving and emission-reduction.
Simultaneously because shorter length can be used in degassing rotor, degassing rotor can be improved after installation and the concentricity of hole location is installed, effectively
The shaking of depassing unit during the work time is reduced, is not easily broken.
(6) when the utility model installs the filter plate in different hole count/apertures in different mounting grooves, molten aluminum can be made to exist
It is repeatedly purified in flow process, further improves the quality of molten aluminum.
Detailed description of the invention
Fig. 1 is the overall structure diagram of holding furnace provided by the utility model；
Fig. 2 is a kind of structural schematic diagram of furnace body provided by the utility model；
Fig. 3 is the structural schematic diagram of another furnace body provided by the utility model；
Fig. 4 is the structural schematic diagram of the third furnace body provided by the utility model；
Fig. 5 is the diagrammatic cross-section of holding furnace provided by the utility model；
Fig. 6 is the partial schematic diagram at depassing unit provided by the utility model and furnace body cooperation.
Primary clustering symbol description:
1 insulating layer of furnace body, 10 lining container, 11 frame body 12
13 parking space of gas vent, 2 clean room 21 takes liquid chamber 22
3 insulation cover of feed inlet, 4 depassing unit, 5 degassing rotor 51
511 degasification turntable of degasification shaft, 512 driving device, 52 undercurrent slot 6
7 filter device of sealing element, 8 pharoid 9
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
It please refers to shown in Fig. 1, Fig. 2, in embodiment provided by the utility model, which includes: furnace body 1,
Wherein furnace body is equipped with the parking space 2 of storage molten aluminum, and the feed inlet 3 being connected to parking space 2；Insulation cover 4, insulation cover
4, for covering parking space 2 and feed inlet 3, not only can reduce molten aluminum heat loss, moreover it is possible to molten aluminum be avoided to connect with air
Touching, it is therefore prevented that molten aluminum is made the quality of molten aluminum be guaranteed by air pollution, improves the quality of casting.Pass through insulation cover 4 simultaneously
It can also prevent sundries from falling in molten aluminum the capping of parking space 2 and feed inlet 3.Depassing unit 5, depassing unit 5 are used for
The gas being stored in parking space 2 in molten aluminum is removed, to improve the quality of molten aluminum, and then improves the quality of casting.Wherein, exist
In the present embodiment, parking space includes: clean room 21 and takes liquid chamber 22, and clean room 21 is connected with feed inlet 3, specifically at this
In embodiment, the undercurrent slot 6 that the two is arranged under furnace body surface by one is connected to, and can enter clean room 21 to avoid molten aluminum in this way
When contacted with air.Liquid chamber 22 is taken to be connected with clean room 21, operator can cast from taking liquid chamber to take out molten aluminum.
It please refers to shown in Fig. 3 to Fig. 5, is the schematic diagram of the set-up mode of three kinds of furnace bodies provided by the utility model, wherein
Fig. 3 is a kind of furnace body of L-type structure, and Fig. 4 is a kind of furnace structure that side goes out into side, and Fig. 5 is a kind of straight furnace body knot directly gone out
Structure, the design that can also use other forms according to the actual situation of certain furnace body, the utility model are not particularly limited herein.
In addition, in the present embodiment, depassing unit 5 is set to 21 bottom of clean room.Not only facilitate in this way and insulation cover 4 is carried out
Opening and closing operations, and can be contacted to avoid depassing unit 5 with free surrounding space in degassing procedure, to avoid 5 quilt of depassing unit
Oxidation corrosion.Simultaneously as depassing unit 5 is arranged in 21 bottom of clean room, the shorter length of 5 need of depassing unit can expire
Foot immerses the requirement of molten aluminum degasification, keeps the installation of depassing unit more firm, improves the service life and security performance of equipment.
It please refers to shown in Fig. 6, in embodiment provided by the utility model, depassing unit 5 includes: degassing rotor 51, with
And the driving device 52 that driving degassing rotor 51 rotates.In the present embodiment, since depassing unit 5 is arranged in clean room bottom,
Degassing rotor 51 can be set smaller, shorter, and volume, weight are also greatly optimized reduction, reduces and fills to driving
The requirement for setting 52 power, not only reduces production cost, moreover it is possible to realize the effect of energy-saving and emission-reduction.Simultaneously because degassing rotor 51
Shorter length can be used, degassing rotor can be improved after installation and the concentricity of hole location is installed, effectively reduces depassing unit
Shaking during the work time, is not easily broken.In addition in the present embodiment, driving device includes driving motor and other realities
The connector, such as shaft coupling etc. that existing driving motor connects with degassing rotor.
In addition, degassing rotor 51 includes: degasification shaft 511, the first end of degasification shaft 511 is located in clean room 21, removes
The second end of gas shaft 511 is located at outside furnace body 1, wherein the second end connects with driving device 52.In addition, degasification shaft 511
It is being axially arranged with venthole (not shown), venthole can be a through-hole for axially penetrating through degasification shaft, can also can with other
Realize the structure to purification chamber venting.In the present embodiment, corresponding sealing is additionally provided at degasification shaft 511 and 1 cooperation of furnace body
Part 7.
Degassing rotor 51 further include: degasification turntable 512, degasification turntable 512 are set to the first end of degasification shaft 511, can
Driven device 52 drives rotation.Degasification principle in the present embodiment are as follows: the rotor of rotation by the nitrogen being blown into aluminum melt (or
The inert gases such as argon gas) it is broken into a large amount of disperse bubble, and it is dispersed in it in molten aluminum.Bubble leans on partial pressure in molten aluminum
Difference and adsorption principle absorb the hydrogen etc. in molten aluminum, and rise with bubble and be carried over molten aluminum.Since bubble is tiny more
It dissipates, is uniformly mixed with rotation molten aluminum, and rotate with it twist slow floating, not will form company long with molten aluminum time of contact
The continuous air-flow for ramping generation significantly improves clean-up effect to remove the gases such as harmful hydrogen in molten aluminum.
In addition, making the residual of 21 bottom deposit of clean room as degassing rotor 51 stirs the molten aluminum in clean room 21
Slag suspends, these residues to suspend can be floated up to the upper stream interface of molten aluminum except the gas drive floated, and operator is facilitated to salvage.Its
In, the gas of floating refers to the mixing formed when the gas mixed in molten aluminum is taken out of by the inert gas squeezed by depassing unit
Gas.
Refering to Figure 1, in embodiment provided by the utility model, holding furnace further include: filter device 8, filtering
8 are filled to set for filtering the residue in molten aluminum；Wherein, filter device 8 can be set between clean room 21 and inlet 3, can also
To be arranged in clean room 21 and take between liquid chamber 22, certainly, above-mentioned two region can be arranged in filter device 8 simultaneously, therewith
It is opposite, in the present embodiment, between clean room 21 and inlet 3 and/or clean room 21 and takes and be provided with energy between liquid chamber 22
The installation position of filter device 8 is enough installed.
In embodiment provided by the utility model, filter device 8 includes N number of filter plate；Installation position includes that M can be single
Solely the mounting groove of installation filter plate, M mounting groove are set gradually along the flow direction of molten aluminum, wherein M >=N >=1.In this way when not
In same mounting groove when the filter plate in the different hole count/apertures of installation, molten aluminum can be made repeatedly to be purified in flow process, into
One step improves the quality of molten aluminum.It should be understood that filter device is also possible to it in the other embodiments of the utility model
The setting of his mode, for example using strainer etc., don't explain too much here for the utility model.
It please referring to shown in Fig. 2, the temperature in order to guarantee molten aluminum is suitable, in embodiment provided by the utility model, heat preservation
Furnace further include: pharoid 9, pharoid 9 are arranged in 4 inner wall of insulation cover.Wherein, pharoid 9, which can be, passes through
Elema, heating wire etc. are heated.
Further, in order to facilitate the work of pharoid 9 more rationally, in embodiment provided by the utility model
In, holding furnace is additionally provided with the temperature detector of temperature of aluminum liquid in detectable furnace body, and is electrically connected with the temperature detector, and
It can control the controller of 9 start and stop of pharoid.Operator can be set according to actual needs corresponding temperature value as critical
Value controls opening/stopping for pharoid 9: when the temperature that temperature detector detects is lower than a certain numerical value, sending out to controller
Electric signals, and then control pharoid 9 and start；When the temperature that temperature detector detects is higher than a certain numerical value, to control
Device processed sends electric signal, and then controls pharoid 9 and stop working.Wherein, temperature detector can be set on insulation cover,
Controller can use PLC (Programmable Logic Controller, programmable logic controller (PLC)), single-chip microcontroller etc..More
Further, in the present embodiment, holding furnace is additionally provided with the touching display screen being electrically connected with controller, allows operator certainly
The critical temperature value that row setting pharoid 9 opens/stops.Operator is just not necessarily to after corresponding critical temperature value is arranged in this way
It separates excessive thought and goes concern worries about whether temperature of aluminum liquid is suitable, reduce the labor intensity of operator.
It please refers to shown in Fig. 2, in order to improve the heat insulation effect of holding furnace, in embodiment provided by the utility model, deposits
It puts space wall and bottom is equipped with insulating layer 10.Wherein, insulating layer 10 can be protected using fiberboard, cellucotton, nano-plates etc.
Adiabator, or heat insulating stuffing is used, for example use castable refractory.In the present embodiment, furnace body includes lining container
11, and the frame body 12 of support installation lining container 11, wherein clean room, to take liquid chamber etc. be the accommodating chamber of lining container 11
A part, lining container 11 is pre-formed by castable refractory, and lateral wall and the bottom of container is arranged in insulating layer.It is understood that
, insulating layer also can be set on corresponding position in insulation cover etc., and don't explain too much here for the utility model.
Refering to Figure 1, insulation cover 4 is equipped with gas vent 13 in embodiment provided by the utility model；Gas vent
Place is equipped with device in one-way on state, makes gas vent one-way conduction from inside to outside, to avoid outside air entrance.Wherein one-way conduction fills
It sets and can be one-way exhaust valve, one-way exhaust valve can be set in the end or intermediate position of gas vent 13.It unidirectionally leads with dress
It sets and can also be an overturning lid, the outer end of gas vent 13, overturning lid and 13 outer end of gas vent are arranged in by hinge for overturning lid
Sidewall shape adaptation so that under normal circumstances overturning lid under the effect of gravity can closed grate hole 13, inside insulation cover
When air pressure increases to certain value, gas can open overturning lid discharge.
It please refers to shown in Fig. 2, in embodiment provided by the utility model, the side of insulation cover 4 is articulated with furnace body 1, makes
Insulation cover 4 can overturn opening.Larger additionally, due to the weight of insulation cover 4, in the present embodiment, holding furnace is additionally provided with insulation cover
Driving device is to be opened and closed insulation cover 4, wherein insulation cover driving device can be using electronic or fluid pressure drive device etc..
It in feed inlet 3, clean room 21 or is taken at liquid chamber 22 3 after operator opens insulation cover 4 in actual use process
The frequency for carrying out relevant operation is different, and differs greatly, if certain in three is needed to operate each time,
All make to open at three and be contacted with air, is not only easy to pollute molten aluminum, is also unfavorable for keeping the temperature.Wherein, operator is at three
Relevant operation mainly include, at inlet 3 into furnace body install additional molten aluminum operation, from clean room 21 salvage residue behaviour
Make and is taking the operation etc. for taking out molten aluminum at liquid chamber 22.
Therefore, in a kind of embodiment provided by the utility model, insulation cover 4 is divided into several sub- lids, to feed
Mouthfuls 3, clean room 21 and taking can individually open at liquid chamber 22 3, reduce contact of the molten aluminum with air, specifically, insulation cover packet
Include: the first capping, first capping is for covering inlet 3；Second capping, the second capping is for covering clean room 21；The
Three cappings, third capping take liquid chamber 22 for covering.
In another embodiment provided by the utility model, in order to allow insulation cover 4 in feed inlet 3 and take liquid chamber
It individually opens and is operated at 22 liang, two windows that can individually open are provided on insulation cover 4 (since institute of clean room is right
The components such as temperature detector, pharoid may be installed, in order to avoid to these yuan on the region for the insulation cover answered
Device interferes, so not opening up window in this region in the present embodiment), specifically: first window, first window with into
Liquid mouth 3 is oppositely arranged；Second window, the second window are oppositely arranged with liquid chamber 22 is taken.In addition, in a kind of specific reality of the present embodiment
It applies in mode, each window includes: the hollow-out parts being arranged on insulation cover 4, and is articulated with insulation cover, and Kaifeng is closed this and engraved
The turnover door in empty portion.Certainly, in other embodiments, the setting of window is also possible to other modes, and the utility model is herein
Excessive explanation is not done.
The above is only the preferred embodiment of the present invention, it is all done according to the utility model claims range it is equal
Deng variation and modification, it should all belong to the covering scope of the utility model claims.
Claims (9)
1. a kind of molten aluminum holding furnace with purification system, which is characterized in that the holding furnace includes:
Furnace body, the furnace body are equipped with the parking space of storage molten aluminum, and the feed inlet being connected to the parking space；
Insulation cover, the insulation cover is for covering the parking space and the feed inlet；
Depassing unit, the depassing unit is for removing the gas being stored in the parking space in molten aluminum；
Wherein, the parking space includes:
Clean room, the clean room are connected with the feed inlet, and the depassing unit is set to the clean room bottom；
Liquid chamber is taken, it is described that liquid chamber is taken to be connected with the clean room, so that user takes out molten aluminum.
2. having the molten aluminum holding furnace of purification system as described in claim 1, which is characterized in that the depassing unit includes:
Degassing rotor, and the driving device of the driving degassing rotor rotation；
Wherein the degassing rotor includes:
Degasification shaft, the degasification shaft are located at the clean room being axially arranged with venthole, the first end of the degasification shaft
Interior, the second end of the degasification shaft is located at outside the furnace body, wherein the second end connects with the driving device；
Degasification turntable, the degasification turntable are set to the first end of the degasification shaft.
3. having the molten aluminum holding furnace of purification system as described in claim 1, which is characterized in that the holding furnace further include:
Filter device, the filter device are used to filter the residue in molten aluminum；
Wherein, between the clean room and inlet and/or clean room and described take are provided between liquid chamber and can install
The installation position of the filter device.
4. having the molten aluminum holding furnace of purification system as claimed in claim 3, which is characterized in that the filter device includes N
A filter plate；
The installation position includes the M mounting grooves that can be individually attached the filter plate, flowing of the M mounting grooves along molten aluminum
Direction is set gradually, wherein M >=N >=1.
5. having the molten aluminum holding furnace of purification system as described in claim 1, which is characterized in that the holding furnace further include:
Pharoid, the pharoid are arranged in the insulation cover inner wall；
Gas vent, the gas vent are arranged on the insulation cover；
Device in one-way on state is equipped at the gas vent, to avoid outside air entrance.
6. having the molten aluminum holding furnace of purification system as claimed in claim 5, which is characterized in that the holding furnace is additionally provided with can
The temperature detector of temperature of aluminum liquid in furnace body is detected, and is electrically connected with the temperature detector, and can control radiant heating
The controller of device start and stop.
7. as described in claim 1 have purification system molten aluminum holding furnace, which is characterized in that the parking space side wall and
Bottom is equipped with insulating layer.
8. having the molten aluminum holding furnace of purification system as described in claim 1, which is characterized in that the insulation cover includes:
First capping, first capping is for covering inlet；
Second capping, second capping is for covering the clean room；
Third capping, third capping described take liquid chamber for covering；
Wherein, first capping, second capping and third capping can be opened individually.
9. having the molten aluminum holding furnace of purification system as described in claim 1, which is characterized in that the insulation cover is equipped with:
First window, the first window are oppositely arranged with inlet；
Second window, second window take liquid chamber to be oppositely arranged with described；
Wherein, the first window and second window can be opened individually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820594012.5U CN208333092U (en) | 2018-04-24 | 2018-04-24 | Molten aluminum holding furnace with purification system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820594012.5U CN208333092U (en) | 2018-04-24 | 2018-04-24 | Molten aluminum holding furnace with purification system |
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| CN208333092U true CN208333092U (en) | 2019-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571892A (en) * | 2018-04-24 | 2018-09-25 | 安徽阿尔泰克铝业材料科技有限公司 | The detection method of molten aluminum holding furnace and its temperature of aluminum liquid with purification system |
| CN114136100A (en) * | 2021-12-07 | 2022-03-04 | 河南中孚技术中心有限公司 | Molten aluminum filtering device of aluminum melting furnace and construction method |
-
2018
- 2018-04-24 CN CN201820594012.5U patent/CN208333092U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571892A (en) * | 2018-04-24 | 2018-09-25 | 安徽阿尔泰克铝业材料科技有限公司 | The detection method of molten aluminum holding furnace and its temperature of aluminum liquid with purification system |
| CN114136100A (en) * | 2021-12-07 | 2022-03-04 | 河南中孚技术中心有限公司 | Molten aluminum filtering device of aluminum melting furnace and construction method |
| CN114136100B (en) * | 2021-12-07 | 2024-03-26 | 河南中孚技术中心有限公司 | Aluminum liquid for aluminum melting furnace Filtering device and construction method |
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