CN108518976A - A kind of novel metal smelting converter - Google Patents
A kind of novel metal smelting converter Download PDFInfo
- Publication number
- CN108518976A CN108518976A CN201810533301.9A CN201810533301A CN108518976A CN 108518976 A CN108518976 A CN 108518976A CN 201810533301 A CN201810533301 A CN 201810533301A CN 108518976 A CN108518976 A CN 108518976A
- Authority
- CN
- China
- Prior art keywords
- furnace body
- duct
- guide duct
- ventilation
- draft chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
Abstract
The invention discloses a kind of novel metal smelting converters, belong to metal smelt technical field, and venthole is easily blocked for solving the problems, such as that the air of existing converter is passed through insufficient and residue.It including furnace body and stove seat, is connected by bearing between furnace body and stove seat, and is equipped with ventilation assembly and the burning rack for placing fuel in furnace body；The side wall of furnace body is equipped with several cavitys；Wind guiding component includes guide duct, wind assembling set and ventilation assembly, and through cavity, circumferentially shape is distributed in furnace interior to guide duct, and the top of guide duct is arranged outside furnace body, and the bottom end of guide duct is connected with wind assembling set, and wind assembling set is arranged in the bottom of furnace body；The top of wind assembling set is equipped with several first discharge pipes；Ventilation assembly includes ventilation duct and draft chamber, and circumferentially shape is distributed between guide duct and draft chamber ventilation duct, and one end of ventilation duct is connected to guide duct, and the other end of ventilation duct is connected to draft chamber, and draft chamber is equipped with the second discharge pipe in one end close to axle center.
Description
Technical field
The present invention relates to metal smelt technical fields, and in particular to a kind of novel metal smelting converter.
Background technology
Converter is a kind of tool that metal smelt is used in the process, and traditional rotary converter is revolved generally about its furnace body axis
Turn, by constantly providing sufficient air to fuel in its burner hearth, adds to which satisfaction carries out high temperature to various metal material materials and parts
The fire box temperature requirement of heat, but air used is logical from the bottom of converter at work for widely used rotary converter at present
Piping is sent in converter, and such mode has two, first, the amount that air is sent into is limited, generally existing fuel and confession
Enter that air is insufficient contact, the heat that fuel combustion can release cannot be given full play to, to make metal material materials and parts heating speed
Degree is slow, causes object heating time longer, and fuel consuming is even more serious, increases production cost burden；Second is that fuel combustion is produced
Raw residue is easy to block intake stack, blocks outside air and enters in converter so that and fuel is insufficient contact with air,
Influence the normal work of converter.
Invention content
In order to solve the problems, such as that background technology, the present invention provide a kind of novel metal smelting converter.
In order to solve the above technical problems, the present invention provides following technical scheme：
A kind of novel metal smelting converter, including furnace body and stove seat, are connected between the furnace body and stove seat by bearing,
And ventilation assembly and the burning rack for placing fuel are equipped in the furnace body；The side wall of the furnace body is equipped with several cavitys；
The wind guiding component includes guide duct, wind assembling set and ventilation assembly, and the guide duct runs through the cavity circumferentially
Shape is distributed in furnace interior, and the top of guide duct is arranged outside furnace body, and the bottom end of guide duct is connected with wind assembling set, the collection
Air compartment is arranged in the bottom of furnace body；The top of the wind assembling set is equipped with several first discharge pipes；
The ventilation assembly includes ventilation duct and draft chamber, and the cross section of the draft chamber is in circular ring shape, and draft chamber
Outer rim connects with the side wall of furnace body, and the draft chamber stacks setting from the bottom to top, and circumferentially shape is distributed in wind-guiding to the ventilation duct
Between pipe and draft chamber, and one end of ventilation duct is connected to guide duct, and the other end of ventilation duct is connected to draft chamber, the ventilation
Room is equipped with the second discharge pipe in one end close to axle center, and the burning rack is located at the top of the first discharge pipe and is arranged in draft chamber
Inner ring between.
The present invention metal smelt with converter at work, the burning rack fuel of combustion state being placed in converter
On, furnace body is rotated by bearing on stove seat, and the rotation of furnace body is rotated with ventilation assembly, and air enters from the top of guide duct
It into wind assembling set, then sheds from the first discharge pipe after wind assembling set, is led due to being connected with several on the side wall of wind assembling set
The top of air hose, wind assembling set is equipped with several the first discharge pipes being uniformly arranged, so, on the burning rack inside converter
It for the fuel of combustion state, can fully be contacted with air, combustion efficiency enhancing can release most heat, significantly
Enhance stove chamber inner combustion temperature, improves metal material materials and parts heating speed.
Meanwhile the air come in from guide duct can also some enter draft chamber from ventilation duct, then by ventilation
It sheds after second discharge pipe of room, because draft chamber is stacked above together and the cross section of draft chamber is in annular shape, burning
The fuel energy of state is more fully contacted with air, and burning is more thoroughly and abundant, releases net quantity of heat, significantly increases stove
Chamber inner combustion temperature improves metal material materials and parts heating speed.
Further, the burning rack is in hollow structure, and burning rack top and bottom end are respectively equipped with perforative venthole, and
The venthole on burning rack top and the venthole of burning rack bottom end are staggeredly set.Venthole, which is staggered, can both meet the external world
Air can be come into full contact with by the fuel of venthole and combustion state so that more thoroughly and abundant, the release of fuel combustion
The heat of bigger, and the residue that fuel combustion generates can be made to fall not falling out outside burning rack, to which wind-guiding will not be blocked
Pipe.
Further, the top of the guide duct be equipped with induced duct, the induced duct include the first blast pipe and second into
Air hose, first blast pipe are obliquely installed, and the second blast pipe is vertically arranged, the top of the second blast pipe and the first blast pipe
One end is connected, and the other end of the second blast pipe is connected with the top of guide duct.The top setting induced duct of guide duct can be more
Quickly outside air is introduced by reduction of fractions to a common denominator pipe in wind assembling set, so that the fuel of combustion state and air fully connect
It touches so that the more thorough of fuel combustion discharges the heat of bigger with fully, significantly increases stove chamber inner combustion temperature, improves gold
Belong to material pieces heating speed.
Further, it is in lambdoid first baffle that the outlet end of first discharge pipe, which is equipped with section, and described first goes out
The top of air hose is embedded between first baffle, and the side wall of first discharge pipe is equipped with perforative first ventilation hole.Air
It can shed from the first ventilation hole while wind-guiding pipeline will not be blocked by residue again, first baffle can solve fuel combustion production
Raw residue blocks wind-guiding pipeline, blocks outside air and enters in converter so that fuel is insufficient contact with air, shadow
The problem of ringing the normal work of converter.
Further, it is in lambdoid second baffle, the second gear that the outlet end of second discharge pipe, which is equipped with section,
Plate is made of overhead gage and lower baffle plate, and the overhead gage is connected with one end of lower baffle plate, the other end point of overhead gage and lower baffle plate
It is not connect with the side wall of draft chamber, the lower baffle plate is equipped with several second ventilation holes.The second ventilation hole on lower baffle plate can be with
Divulging information, indoor air sheds into furnace body so that the fuel combustion of the combustion state on burning rack more fully, simultaneously
The residue that fuel combustion generates can be blocked by overhead gage, will not block the second ventilation hole.Second baffle can solve fuel combustion
The residue of generation blocks wind-guiding pipeline, blocks outside air and enters in converter so that and fuel is insufficient contact with air,
The problem of influencing the normal work of converter.
Further, the top of the furnace body is equipped with bell, and the bell is flexibly connected with furnace body.It can be to being risen in furnace body
To heat preservation, the booster action of reduction heat waste.
Further, locating shaft, the bottom of the furnace body and the top difference of stove seat are equipped between the furnace body and pedestal
Equipped with the matched groove of the locating shaft, the groove in bottom of furnace body and the groove institute at the top of stove seat is arranged in the locating shaft
In the space of formation.Locating shaft makes furnace body more stablize when being rotated on stove seat.
Further, the side wall of the furnace body is equipped with snap ring.Convenient for rotating furnace.
The present invention has an advantageous effect in that compared with prior art：
1, the fuel of combustion state is placed on the burning rack in converter, furnace body is rotated by bearing on stove seat, stove
The rotation of body is rotated with ventilation assembly, and air is entered from the top of guide duct in wind assembling set, then after wind assembling set from
First discharge pipe sheds, and due to being connected with several guide ducts on the side wall of wind assembling set, the top of wind assembling set is equipped with several
First discharge pipe of even setting, so, for the fuel of the combustion state on the burning rack inside converter, can fully with
Air contacts, and combustion efficiency enhancing can release most heat, significantly increase stove chamber inner combustion temperature, improve metal material
Materials and parts heating speed.
Meanwhile the air come in from guide duct can also some enter draft chamber from ventilation duct, then by ventilation
It sheds after second discharge pipe of room, because draft chamber is stacked above together and the cross section of draft chamber is in annular shape, burning
The fuel energy of state is more fully contacted with air, and burning is more thoroughly and abundant, releases net quantity of heat, significantly increases stove
Chamber inner combustion temperature improves metal material materials and parts heating speed.
2, burning rack of the invention is in hollow structure, and burning rack top and bottom end are respectively equipped with perforative venthole, and fire
The venthole on buck top and the venthole of burning rack bottom end are staggeredly set.Venthole, which is staggered, can both meet extraneous sky
Gas can be come into full contact with by the fuel of venthole and combustion state so that fuel combustion more thoroughly and fully, release more
Big heat, and the residue that fuel combustion generates can be made to fall not falling out outside burning rack, to which guide duct will not be blocked.
3, the top setting induced duct of guide duct of the invention can more quickly be drawn outside air by reduction of fractions to a common denominator pipe
Enter into wind assembling set, so that the fuel of combustion state and air come into full contact with so that fuel combustion more thoroughly and
Fully, the heat for discharging bigger significantly increases stove chamber inner combustion temperature, improves metal material materials and parts heating speed.
4, air can shed from the first ventilation hole while and will not be blocked wind-guiding pipeline by residue, first baffle can be with
It solves the residue that fuel combustion generates and blocks wind-guiding pipeline, block outside air and enter in converter so that fuel and sky
Gas is insufficient contact, the problem of influencing the normal work of converter.
5, the second ventilation hole on lower baffle plate of the invention can shed indoor air of divulging information into furnace body so that combustion
The fuel combustion of combustion state on buck more fully, while fuel combustion generate residue can be blocked by overhead gage, no
The second ventilation hole can be blocked.The residue that second baffle can solve fuel combustion generation blocks wind-guiding pipeline, blocks the external world
Air enters in converter so that fuel is insufficient contact with air, the problem of influencing the normal work of converter.
6, the top of furnace body of the invention is equipped with bell, and the bell is flexibly connected with furnace body.It can be to being played in furnace body
Heat preservation, the booster action for reducing heat waste.
7, it is equipped with locating shaft between furnace body and pedestal of the invention, is respectively equipped at the top of the bottom of the furnace body and stove seat
With the matched groove of the locating shaft, the locating shaft is arranged the groove in bottom of furnace body and is formed with the groove at the top of stove seat
Space in.Locating shaft makes furnace body more stablize when being rotated on stove seat.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the vertical view that the present invention removes induced duct and bell；
Fig. 3 is the close-up schematic view of A in Fig. 1；
Fig. 4 is the close-up schematic view of B in Fig. 1.
It is marked in figure：1- furnace bodies, 2- stove seats, 3- bearings, 4- burning racks, 5- cavitys, 6- guide ducts, 7- wind assembling set, 8-
One discharge pipe, 9- ventilation ducts, the draft chambers 10-, the second discharge pipes of 11-, 12- ventholes, the first blast pipes of 13-, 14- second are entered the wind
Pipe, 15- first baffles, the first ventilation holes of 16-, 17- second baffles, 18- overhead gages, 19- lower baffle plates, the second ventilation holes of 20-,
21- bells, 22- locating shafts, 23- snap rings.
Specific implementation mode
With reference to embodiment, the invention will be further described, and described embodiment is only a present invention part
Embodiment is not whole embodiment.Based on the embodiments of the present invention, those skilled in the art are not making
Other embodiments used obtained under the premise of creative work, belong to protection scope of the present invention.
Embodiment 1:
As shown in Figs 1-4, a kind of novel metal smelting converter, including furnace body 1 and stove seat 2, the furnace body 1 and stove seat 2
Between connected by bearing 3, between the furnace body 1 and pedestal be equipped with locating shaft 22, the top of the bottom and stove seat 2 of the furnace body 1
Portion is respectively equipped with is arranged groove and stove seat 2 in 1 bottom of furnace body with 22 matched groove of the locating shaft, the locating shaft 22
The groove at top is formed by space.Locating shaft 22 is so that furnace body 1 is more stablized when being rotated on stove seat 2.In the furnace body 1
Burning rack 4 equipped with ventilation assembly and for placing fuel；The side wall of the furnace body 1 is equipped with several cavitys 5；The furnace body
1 top is equipped with bell 21, and the bell 21 is flexibly connected with furnace body 1.It can be to playing heat preservation in furnace body 1, reducing heat waste
Booster action.The side wall of the furnace body 1 is equipped with snap ring 23.Convenient for rotating furnace 1.
The wind guiding component includes guide duct 6, wind assembling set 7 and ventilation assembly, and the guide duct 6 is in through the cavity 5
Circle-shaped to be distributed in inside furnace body 1, the top of guide duct 6 is arranged outside furnace body 1, and the bottom end of guide duct 6 is connected with wind assembling set 7
Logical, the wind assembling set 7 is arranged in the bottom of furnace body 1；The top of the wind assembling set 7 is equipped with several first discharge pipes 8；
The top of the guide duct 6 is equipped with induced duct, and the induced duct includes the first blast pipe 13 and the second blast pipe 14,
First blast pipe 13 is obliquely installed, and the second blast pipe 14 is vertically arranged, top and the first blast pipe of the second blast pipe 14
13 one end is connected, and the other end of the second blast pipe 14 is connected with the top of guide duct 6.Induced duct is arranged in the top of guide duct 6
More quickly outside air can be introduced by reduction of fractions to a common denominator pipe in wind assembling set 7, so that the fuel of combustion state and sky
Gas comes into full contact with so that fuel combustion more thoroughly and fully, discharge the heat of bigger, significantly increase stove chamber inner combustion temperature
Degree improves metal material materials and parts heating speed.
The ventilation assembly includes ventilation duct 9 and draft chamber 10, and the cross section of the draft chamber 10 is in circular ring shape, and is divulged information
The outer rim of room 10 connects with the side wall of furnace body 1, and the draft chamber 10 stacks setting from the bottom to top, the circumferentially shape of the ventilation duct 9
Be distributed between guide duct 6 and draft chamber 10, and one end of ventilation duct 9 is connected to guide duct 6, the other end of ventilation duct 9 with it is logical
Air compartment 10 is connected to, and the draft chamber 10 is equipped with the second discharge pipe 11 in one end close to axle center, and the burning rack 4 is equipped with several
Perforative venthole 12, the burning rack 4 are located at the top of the first discharge pipe 8 and are arranged between the inner ring of draft chamber 10.
The burning rack 4 is in hollow structure, and 4 top of burning rack and bottom end are respectively equipped with perforative venthole 12, and burn
The venthole 12 on 4 top of frame and the venthole 12 of 4 bottom end of burning rack are staggeredly set.
The operation principle of the present invention：The metal smelt of the present invention at work, places the fuel of combustion state with converter
On burning rack 4 in converter, furnace body 1 is rotated by bearing 3 on stove seat 2, and the rotation of furnace body 1 is rotated with ventilation assembly,
Air is entered from the top of guide duct 6 in wind assembling set 7, is then shed from the first discharge pipe 8 after wind assembling set 7, due to collection
Several guide ducts 6 are connected on the side wall of air compartment 7, the top of wind assembling set 7 is equipped with several the first discharge pipes being uniformly arranged
8, so, it for the fuel of the combustion state on the burning rack 4 inside converter, can fully be contacted with air, burning effect
Fruit enhances, and can release most heat, significantly increases stove chamber inner combustion temperature, improves metal material materials and parts heating speed.
Meanwhile the air come in from guide duct 6 can also some enter draft chamber 10 from ventilation duct 9, then pass through
It sheds after second discharge pipe 11 of draft chamber 10, because draft chamber 10 is stacked above together and the cross section of draft chamber 10 is in annulus
Shape, so the fuel energy of combustion state is more fully contacted with air, burning is more thoroughly and abundant, releases whole heat
Amount significantly increases stove chamber inner combustion temperature, improves metal material materials and parts heating speed.
Venthole 12 is staggered and can both meet outside air and can be filled by venthole 12 and the fuel of combustion state
Tap is touched so that the more thorough of fuel combustion discharges the heat of bigger with fully, and fuel combustion can be made to generate residual
Slag falls not falling out outside burning rack 4, to block guide duct 6.
Embodiment 2：
As shown in Figs 1-4, this implementation is advanced optimized on the basis of embodiment 1, and the present embodiment emphasis illustrates and reality
The improvements that example 1 is compared are applied, something in common repeats no more, and in the present embodiment, the outlet end of first discharge pipe 8 is equipped with
Section is in lambdoid first baffle 15, and the top of first discharge pipe 8 is between first baffle 15, and described first goes out
The side wall of air hose 8 is equipped with perforative first ventilation hole 16.Air can shed from the first ventilation hole 16 while and will not be residual
Slag blocks 6 pipeline of guide duct, and the residue that first baffle 15 can solve fuel combustion generation is blocked 6 pipeline of guide duct, blocked
Outside air enters in converter so that fuel is insufficient contact with air, the problem of influencing the normal work of converter.
Embodiment 3：
As shown in Figs 1-4, this implementation is advanced optimized on the basis of embodiment 1, and the present embodiment emphasis illustrates and reality
The improvements that example 1 is compared are applied, something in common repeats no more, and in the present embodiment, the outlet end of second discharge pipe 11 is set
It is in lambdoid second baffle 17 to have section, and the second baffle 17 is made of overhead gage 18 and lower baffle plate 19, the overhead gage
18 connect with one end of lower baffle plate 19, and the other end of overhead gage 18 and lower baffle plate 19 is connect with the side wall of draft chamber 10 respectively, institute
It states lower baffle plate 19 and is equipped with several second ventilation holes 20.The second ventilation hole 20 on lower baffle plate 19 can be the sky in draft chamber 10
Gas sheds into furnace body 1 so that the fuel combustion of the combustion state on burning rack 4 more fully, while fuel combustion generate
Residue can be blocked by overhead gage 18, the second ventilation hole 20 will not be blocked.Second baffle 17 can solve fuel combustion generation
Residue blocks 6 pipeline of guide duct, blocks outside air and enters in converter so that fuel is insufficient contact with air, influences
The problem of normal work of converter.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (8)
1. a kind of novel metal smelting converter, including furnace body (1) and stove seat (2), which is characterized in that the furnace body (1) and stove
It is connected by bearing (3) between seat (2), and is equipped with ventilation assembly and the burning rack for placing fuel in the furnace body (1)
(4)；The side wall of the furnace body (1) is equipped with several cavitys (5)；
The wind guiding component includes guide duct (6), wind assembling set (7) and ventilation assembly, and the guide duct (6) runs through the cavity
(5) circumferentially shape is distributed in furnace body (1) inside, and the top setting of guide duct (6) is external in furnace body (1), the bottom end of guide duct (6)
It is connected with wind assembling set (7), bottom of wind assembling set (7) setting in furnace body (1)；The wind assembling set (7) if top be equipped with
Dry first discharge pipe (8)；
The ventilation assembly includes ventilation duct (9) and draft chamber (10), and the cross section of the draft chamber (10) is in circular ring shape, and logical
The outer rim of air compartment (10) connects with the side wall of furnace body (1), and the draft chamber (10) stacks setting, the ventilation duct from the bottom to top
(9) circumferentially shape is distributed between guide duct (6) and draft chamber (10), and one end of ventilation duct (9) is connected to guide duct (6),
The other end of ventilation duct (9) is connected to draft chamber (10), and the draft chamber (10) is equipped with the second outlet air in one end close to axle center
It manages (11), the burning rack (4) is located at the top of the first discharge pipe (8) and is arranged between the inner ring of draft chamber (10).
2. a kind of novel metal smelting converter according to claim 1, which is characterized in that during the burning rack (4) is in
Hollow structure, burning rack (4) top and bottom end are respectively equipped with perforative venthole (12), and the venthole on burning rack (4) top
(12) venthole (12) with burning rack (4) bottom end is staggeredly set.
3. a kind of novel metal smelting converter according to claim 1, which is characterized in that the top of the guide duct (6)
End is equipped with induced duct, and the induced duct includes the first blast pipe (13) and the second blast pipe (14), first blast pipe (13)
It is obliquely installed, the second blast pipe (14) is vertically arranged, one end phase on the top and the first blast pipe (13) of the second blast pipe (14)
Even, the other end of the second blast pipe (14) is connected with the top of guide duct (6).
4. a kind of novel metal smelting converter according to claim 1, which is characterized in that first discharge pipe (8)
To be equipped with section be in lambdoid first baffle (15) for outlet end, the top of first discharge pipe (8) is embedded in first baffle
(15) between, and the side wall of first discharge pipe (8) is equipped with perforative first ventilation hole (16).
5. a kind of novel metal smelting converter according to claim 1, which is characterized in that second discharge pipe (11)
Outlet end be equipped with section be in lambdoid second baffle (17), the second baffle (17) is by overhead gage (18) and lower baffle plate
(19) it forms, the overhead gage (18) connects with one end of lower baffle plate (19), the other end of overhead gage (18) and lower baffle plate (19)
It is connect respectively with the side wall of draft chamber (10), the lower baffle plate (19) is equipped with several second ventilation holes (20).
6. a kind of novel metal smelting converter according to claim 1, which is characterized in that the top of the furnace body (1)
Portion is equipped with bell (21), and the bell (21) is flexibly connected with furnace body (1).
7. a kind of novel metal smelting converter according to claim 1, which is characterized in that the furnace body (1) and pedestal
Between be equipped with locating shaft (22), be respectively equipped with and the locating shaft (22) phase at the top of the bottom of the furnace body (1) and stove seat (2)
The groove of cooperation, groove of locating shaft (22) setting in furnace body (1) bottom are formed by sky with the groove at the top of stove seat (2)
In.
8. a kind of novel metal smelting converter according to claim 1, which is characterized in that the side wall of the furnace body (1)
It is equipped with snap ring (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810533301.9A CN108518976A (en) | 2018-05-29 | 2018-05-29 | A kind of novel metal smelting converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810533301.9A CN108518976A (en) | 2018-05-29 | 2018-05-29 | A kind of novel metal smelting converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108518976A true CN108518976A (en) | 2018-09-11 |
Family
ID=63426847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810533301.9A Withdrawn CN108518976A (en) | 2018-05-29 | 2018-05-29 | A kind of novel metal smelting converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108518976A (en) |
-
2018
- 2018-05-29 CN CN201810533301.9A patent/CN108518976A/en not_active Withdrawn
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180911 |
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| WW01 | Invention patent application withdrawn after publication |