CN113101724A - Degassing type metal melt filtering device and using method thereof - Google Patents
Degassing type metal melt filtering device and using method thereof Download PDFInfo
- Publication number
- CN113101724A CN113101724A CN202110461280.6A CN202110461280A CN113101724A CN 113101724 A CN113101724 A CN 113101724A CN 202110461280 A CN202110461280 A CN 202110461280A CN 113101724 A CN113101724 A CN 113101724A
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- metal melt
- vibration
- degassing
- filter
- guide rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
- B01D33/0346—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements
- B01D33/0353—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0073—Degasification of liquids by a method not covered by groups B01D19/0005 - B01D19/0042
- B01D19/0078—Degasification of liquids by a method not covered by groups B01D19/0005 - B01D19/0042 by vibration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a degassing type metal melt filtering device and a using method thereof, wherein the degassing type metal melt filtering device comprises a filtering box with an upward opening, a filtering sheet and a degassing assembly, wherein the filtering sheet is arranged in the filtering box, the filtering sheet divides an inner cavity of the filtering box into an upper liquid inlet cavity and a lower liquid outlet cavity, the degassing assembly comprises a pressing plate and a vibration guide rod which are fixedly connected, and the pressing plate is in contact with the upper surface of the filtering sheet; the degassing type metal melt filtering device is characterized in that the pressing plate is provided with the vent holes, the degassing type metal melt filtering device and the using method of the degassing type metal melt filtering device are reasonable in structure, the pressing plate can prevent a metal melt from covering a filter sheet area right below the pressing plate, the vibration guide rod and the pressing plate are matched to directly conduct vibration to the filter sheet, so that partial gas in the filter sheet and below the filter sheet is gathered to the area right below the pressing plate and is exhausted through the filter holes and the vent holes below the pressing plate, the vibration force is easy to control, the vibration transmission is fast, the fracture probability of the filter sheet is low, and the.
Description
Technical Field
The invention relates to the field of metal casting, in particular to a degassing type metal melt filtering device and a using method thereof.
Background
Impurities in the metal melt can affect the casting quality, so the metal melt needs to be filtered by an open type filter box and then cast by a crystallizer, and the open type filter box mainly depends on the dead weight of the metal melt to enable the metal melt to pass through a filter sheet; the interior cassette of open rose box is ceramic filter generally, before the casting begins, need dry ceramic filter, but can dry incompletely or dry the back and place the condition that the moisture absorption was after the certain time, because metal melt has certain viscosity and cassette and has thickness, make metal melt can cover whole filter upper surface earlier, steam is heated the inflation and is blockked up the filtration pore together with the air in the cassette, causes metal melt to float in the cassette top, very big influence filtration efficiency.
The existing exhaust mode is as follows: knocking the filter box, and transmitting the vibration to the filter disc through the box body of the filter box, so that the gas in the filter disc is oscillated and separated from the filter pores, and the filter disc is convenient for the metal melt to infiltrate.
The filter box comprises a metal shell and an inner cavity made of refractory materials, wherein the metal shell and the refractory materials are not beneficial to vibration conduction, so that the knocking force is difficult to control, and the situation of overlarge knocking force is easy to occur, so that a ceramic filter sheet or the refractory materials are shattered; secondly, the metal melt feeding quickly covers the filter sheet, and even if the mode of knocking the filter box is adopted, the gas exhaust speed is still slow, and even air in the filter sheet cannot be exhausted.
Therefore, there is a need for an improved metal melt filtration device of the prior art.
Disclosure of Invention
One of the objectives of the present invention is to overcome the defects in the prior art, and to provide a degassing type molten metal filtering apparatus, which can vibrate a filter to discharge gas, thereby improving the filtering efficiency without damaging the filter.
In order to realize the technical effects, the technical scheme of the invention is as follows: a degassing type metal melt filtering device comprises a filtering box with an upward opening, a filter disc and a degassing assembly, wherein the filter disc and the degassing assembly are arranged in the filtering box;
the degassing assembly comprises a pressing plate and a vibration guide rod which are fixedly connected, and the pressing plate is in surface contact with the upper surface of the filter sheet; the pressing plate is provided with an exhaust hole, an orifice at one end of the exhaust hole is positioned on the contact surface of the filter sheet of the pressing plate, and the exhaust hole is arranged in a hollow manner.
The clamp plate can stop the metal melt and cover the cassette region under the clamp plate, leads the cooperation of vibrating rod and clamp plate and will vibrate direct conduction for the cassette for the gaseous regional gathering of the cassette region under to the clamp plate of filter plate around the clamp plate in the cassette, and upwards discharge via the exhaust hole, easily control vibration dynamics and vibration transmission are quick, and the cassette fracture probability is low, can reduce the time that the metal melt soaks the cassette again, promotes the speed that the metal melt passes through the cassette.
The preferred technical scheme is that the degassing assembly is provided with a spring plate base, a vibration spring plate fixedly connected with the spring plate base and a spring plate stirring piece, and the spring plate stirring piece switches deformation and deformation recovery of the vibration spring plate.
The elastic sheet base and the elastic sheet stirring piece move relatively, so that the vibration elastic sheet generates elastic deformation, and vibration is generated.
The preferred technical scheme is that the vibration elastic sheet has elastic deformation along the radial direction of the vibration guide rod.
The vibration shell fragment can also have along the elastic deformation of other directions, but when transmitting to on the filter plate, can make the filter plate along its thickness direction shearing vibration, causes the filter plate fracture easily.
The vibration spring plate is eccentrically arranged on the periphery of the vibration guide rod, the spring plate base comprises a turntable, the turntable is coaxially sleeved on the vibration guide rod and is axially locked, the turntable rotates around the vibration guide rod, and the plurality of spring plate stirring pieces are arranged on the periphery of the vibration guide rod in a dispersing manner.
The rotary table can be convenient for an operator to grasp and apply force, the rotary table rotates, and the divergent elastic piece stirring pieces sequentially stir the vibration elastic pieces to enable the filter pieces to generate sequential radial vibration around the vibration guide rods; the eccentric arrangement of the vibration elastic sheet can avoid the mutual offset of the generated vibration.
The preferred technical scheme is that the elastic sheet stirring pieces are uniformly distributed on the periphery of the vibration guide rod.
The elastic piece poking piece comprises a plurality of poking rods fixed with the vibration guide rod, a gear, a square plate and a regular hexagonal plate.
The preferred technical scheme is that the exhaust hole and the vibration guide rod are both arranged at the central part of the pressure plate.
The rotary table rotates, the elastic piece stirring piece in a divergence shape sequentially stirs the vibration elastic pieces, so that the filter pieces generate sequential radial vibration around the vibration guide rod, gas in the area of the filter pieces around the pressing plate is gathered to the central part of the pressing plate, and meanwhile, the exhaust holes are also formed in the central part of the pressing plate, so that the gas gathered below the central part of the pressing plate can be exhausted more quickly.
The preferred technical scheme is that the vibration guide rod is provided with a hollow connecting hole, and the exhaust hole is communicated with the hollow connecting hole.
The vibration guide rod is provided with the hollow connecting hole, so that the exhaust height of the exhaust hole can be increased, the excessive introduction of the melt is avoided, and the exhaust hole is not blocked by the pressure plate.
The vibration shrapnel can also be fixed with the shrapnel base at both ends or one end, and in order to produce great amplitude, preferred technical scheme does, the one end and the shrapnel base fixed connection of vibration shrapnel, the unsettled setting of the other end.
The invention also aims to provide a use method of the degassing type metal melt filtering device, which comprises the following steps:
a. and (3) arranging a degassing component: placing the degassing assembly on the filter sheet, and enabling the pressing plate to be in surface contact with the upper surface of the filter sheet;
b. introducing a metal melt: introducing a metal melt into the liquid inlet cavity;
c. vibration degassing: the vibration guide rod is applied with acting force for vibrating the vibration guide rod, the vibration is transmitted to the filter disc through the vibration guide rod and the pressing plate, and the gas in the filter disc and the liquid discharge cavity is discharged through the vent hole.
The pressing plate is abutted against the filter, the metal melt is prevented from covering the area of the filter right below the pressing plate, and after the metal melt is introduced, the melt does not press the area of the filter around the pressing plate at first; the shell fragment is dialled and is taken place the dislocation with the shell fragment base, the shell fragment is dialled the deformation that the piece switches the vibration shell fragment and is resumeed with deformation and produce the vibration, the vibration passes through the shell fragment base and leads the transmission of vibrating reed to clamp plate, the clamp plate drives the cassette vibration, make the clamp plate around the gas in the filter plate region gather to the clamp plate central part, the exhaust hole also sets up at the clamp plate central part simultaneously, can be more fast with gathering the gas outgoing in clamp plate central part below, the regional rapid filtration of filter plate around the clamp plate is followed to the metal melt this.
Preferably, the method further comprises the following steps: when the metal melt is fully distributed on the filter plate, the degassing component is taken out from the filter box.
The degassing component is taken out, so that the filtering area can be recovered to the whole filter plate, and the filtering efficiency is further improved.
The invention has the advantages and beneficial effects that: the clamp plate can stop the metal melt and cover the cassette region under the clamp plate, lead the cooperation of vibrating rod and clamp plate and will vibrate direct conduction for the cassette for in the filter plate and the partial gas of cassette below gather under the clamp plate, and via the filtration pore of clamp plate below and exhaust hole evacuation, the vibration dynamics is easily controlled and the vibration transmission is quick, the cassette fracture probability is low, can reduce the time that the metal melt soaks the cassette again, promote the speed that the metal melt passes through the cassette.
Drawings
FIG. 1 is a schematic view showing the structure of a deaerating type molten metal filtering apparatus according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of the working state of embodiment 1 of the present invention;
FIG. 3 is a schematic view of the construction of a degassing unit according to embodiment 1 of the present invention;
FIG. 4 is a schematic view of the construction of a degassing unit according to embodiment 1 of the present invention;
FIG. 5 is a schematic view showing a coupling structure of a gear and a spacer according to embodiment 1 of the present invention;
in the figure: 1. a vibration guide rod; 21. a positioning sleeve; 22. a gear; 23. a turntable; 24. vibrating the elastic sheet; 25. positioning the bolt; 26. a locking nut; 3. pressing a plate; 4. a handrail; 5. a filter disc; 6. receiving a hollow hole; 7. a filter box; 8. a protrusion; 9. a liquid inlet; 10. and a liquid discharge port.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
"Top", "bottom" and "bottom" are used with reference to their normal state of use only to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must be in a particular orientation, constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Example 1
As shown in fig. 1, the degassing type metal melt filtering device of embodiment 1 includes a filtering box 7 with an upward opening, a filtering sheet 5 and a degassing component, the filtering sheet 5 is disposed on a protrusion 8 in the filtering box 7, an inner cavity of the filtering box 7 is divided into an upper liquid inlet cavity and a lower liquid outlet cavity by the filtering sheet 5, a liquid inlet 9 is disposed on a cavity wall of the upper liquid inlet cavity, and a liquid outlet 10 is disposed on a cavity wall of the lower liquid outlet cavity;
as shown in fig. 2-3, the degassing assembly comprises a pressing plate 3 and a vibration guide rod 1 which are fixedly connected, wherein the pressing plate 3 is in surface contact with the upper surface of the filter plate 5; the pressing plate 3 is provided with an exhaust hole, one end orifice of the exhaust hole is positioned on the contact surface of the filter 5 of the pressing plate 3, and the exhaust hole is arranged in a hollow way. The exhaust hole and the vibration guide rod 1 are both arranged at the central part of the pressure plate 3. The vibration guide rod 1 is provided with a hollow connecting hole 6, and the exhaust hole is communicated with the hollow connecting hole 6. The vibration guide rod 1 is provided with a handrail 4.
As shown in fig. 4-5, the degassing assembly is provided with a spring plate base, a vibration spring plate 24 fixedly connected with the spring plate base, and a spring plate stirring member, wherein the spring plate stirring member switches the deformation and the deformation recovery of the vibration spring plate 24. The vibration elastic sheet 24 has elastic deformation along the radial direction of the vibration guide rod 1, and the vibration elastic sheet 24 is eccentrically arranged on the periphery of the vibration guide rod 1.
The shell fragment base is carousel 23, and the shell fragment is dialled the piece and is gear 22, and carousel 23 sets up on position sleeve 21, and gear 22 passes through lock nut 26 and 21 fixed connection of position sleeve, and position sleeve 21 can dismantle with leading pole 1 through positioning bolt 25 and be connected, and carousel 23 sets up along leading the vibration shell fragment 24 of the radial deformation of pole 1 that shakes, the one end and the shell fragment base fixed connection of vibration shell fragment 24, the unsettled setting of the other end.
The use method of the filtering device comprises the following steps:
degassing component setting and melt introduction stage: the pressing plate 3 is in surface contact with the upper surface of the filter 5, the metal melt is prevented from covering the area of the filter 5 right below the pressing plate 3, and after the metal melt is introduced, the melt does not press the area of the filter 5 around the pressing plate 3 at first;
a vibration degassing stage: the rotary table 23 rotates to drive the vibration elastic sheet 24 to scrape the teeth of the gear 22, so that the vibration elastic sheet 24 generates elastic deformation to generate circumferential radial vibration, the vibration is transmitted to the pressing plate 3 through the rotary table 23 and the vibration guide rod 1, the pressing plate 3 drives the filter 5 to vibrate, gas in the area of the filter 5 around the pressing plate 3 is gathered to the metal melt blocking area and is discharged through the exhaust hole, the metal melt is accelerated to infiltrate the area of the filter 5 around the pressing plate 3, and the metal melt quickly passes through the filter 5;
and (3) a normal filtration stage: when the metal melt is fully distributed on the filter 5, namely the metal melt infiltrates the filter 5 around the pressing plate 3, the degassing component is taken out from the filter box 7, so that the filtering area is recovered to the whole filter 5, and the filtering efficiency is further improved.
Example 2
Based on the embodiment 1, the difference of the embodiment 2 is that the end surface of the vibration guide rod 1 is knocked along the axial direction of the vibration guide rod 1 to apply vibration force to the degassing assembly.
Embodiment 2 compares with embodiment 1, and this embodiment directly transmits the vibration to filter plate 5, but strikes the terminal surface that leads the pole 1 of shaking along leading the pole 1 axial and can produce the shearing force to filter plate 5, very easily causes filter plate 5 fracture, needs the operator to control the dynamics of striking.
Example 3
Based on embodiment 1, embodiment 3 is different in that the side wall of the vibration guide rod 1 is knocked along the radial direction of the vibration guide rod 1 to apply vibration force to the exhaust device.
Compared with the embodiment 1, the embodiment 3 has the advantages that the side wall of the vibration guide rod 1 is radially knocked along the vibration guide rod 1, so that the pressure plate 3 and the filter sheet 5 are relatively displaced, air is entrapped in a melt, and air holes are generated inside a casting and/or the flatness of the surface of the casting is poor.
Comparative example
The metal melt filtration device of the comparative example is based on example 1, with the difference that: not including gas removal equipment, the rose box is the column, and the bottom surface is the rectangle, and the inlet and the leakage fluid dram of rose box set up respectively on the relative lateral wall of rose box, only realize vibrating the exhaust through the tank wall that strikes rose box inlet both sides.
When the size of the filter is 200mm multiplied by 200 mm; the diameter of the pressing plate is 100 mm; the time required for filtration to obtain 10kg of metal melt at a melt temperature of 680. + -. 5 ℃ is given in the following table:
| total length of time to complete filtration | |
| Example 1 | 4150 ms |
| Example 2 | 6650 ms |
| Example 3 | 7100 ms |
| Comparative example | 15250 milliseconds |
It can be seen from the above table that the filtering time of examples 1, 2, and 3 is greatly reduced and the filtering efficiency is significantly improved, compared to the comparative example.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A degassing type metal melt filtering device is characterized by comprising a filtering box with an upward opening, a filter disc and a degassing assembly, wherein the filter disc and the degassing assembly are arranged in the filtering box;
the degassing assembly comprises a pressing plate and a vibration guide rod which are fixedly connected, and the pressing plate is in surface contact with the upper surface of the filter sheet; the pressing plate is provided with an empty vent hole, and an orifice at one end of the vent hole is positioned on the contact surface of the filter sheet of the pressing plate.
2. A degassing metal melt filtering apparatus according to claim 1, wherein the degassing assembly is provided with a spring plate base, a vibrating spring plate fixedly connected with the spring plate base, and a spring plate stirring member, and the spring plate stirring member switches deformation and deformation recovery of the vibrating spring plate.
3. The degassed metal melt filter apparatus of claim 2 wherein said vibration dome has an elastic deformation in the radial direction of said vibration guide rod.
4. The degassing-type molten metal filtering apparatus according to claim 3, wherein the vibrating spring plate is eccentrically disposed on the outer periphery of the vibration guide rod, the spring plate base comprises a rotary plate, the rotary plate is coaxially sleeved on the vibration guide rod and axially locked, the rotary plate rotates around the vibration guide rod, and the plurality of spring plate stirring members are divergently disposed on the outer periphery of the vibration guide rod.
5. The degassing metal melt filtering apparatus of claim 4, wherein the plurality of spring plate stirring members are evenly distributed around the periphery of the vibration guide rod.
6. The degassed metal melt filter device of claim 5 wherein said vent holes and said vibration guide rods are disposed in a central portion of said platen.
7. A degassed metal melt filter device according to claim 2 wherein said vibration rod is provided with a receiving hole, said vent hole communicating with said receiving hole.
8. The degassing-type molten metal filtering apparatus according to claim 1, wherein one end of the vibrating spring is fixedly connected with the spring base, and the other end of the vibrating spring is suspended.
9. The method of using a degassed metal melt filter device according to any one of claims 1-8 comprising the steps of:
a. and (3) arranging a degassing component: placing the degassing assembly on the filter sheet, and enabling the pressing plate to be in surface contact with the upper surface of the filter sheet;
b. introducing a metal melt: introducing a metal melt into the liquid inlet cavity;
c. vibration degassing: the vibration guide rod is applied with acting force for vibrating the vibration guide rod, the vibration is transmitted to the filter disc through the vibration guide rod and the pressing plate, and the gas in the filter disc and the liquid discharge cavity is discharged through the vent hole.
10. The method of using a degassed metal melt filter device according to claim 9 further comprising, after step c, d: when the metal melt is fully distributed on the filter plate, the degassing component is taken out from the filter box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110461280.6A CN113101724B (en) | 2021-04-27 | 2021-04-27 | Degassing type metal melt filtering device and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110461280.6A CN113101724B (en) | 2021-04-27 | 2021-04-27 | Degassing type metal melt filtering device and using method thereof |
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| CN113101724A true CN113101724A (en) | 2021-07-13 |
| CN113101724B CN113101724B (en) | 2022-12-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113694614A (en) * | 2021-08-11 | 2021-11-26 | 南京帅行龙贸易有限公司 | High-efficient filter equipment of dairy products |
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| CN209611765U (en) * | 2018-12-04 | 2019-11-12 | 天津猛犸象科技有限公司 | A kind of heating device suitable for Chinese medicine |
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| CN1379116A (en) * | 2002-01-22 | 2002-11-13 | 上海交通大学 | Molten metals mixer |
| CN202576520U (en) * | 2012-01-29 | 2012-12-05 | 昆山市超群金属制品有限公司 | Filtering plate vibrating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113694614A (en) * | 2021-08-11 | 2021-11-26 | 南京帅行龙贸易有限公司 | High-efficient filter equipment of dairy products |
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| CN113101724B (en) | 2022-12-20 |
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