CN106839759A - Production line is automatically fired for producing magnetic material - Google Patents
Production line is automatically fired for producing magnetic material Download PDFInfo
- Publication number
- CN106839759A CN106839759A CN201510877400.5A CN201510877400A CN106839759A CN 106839759 A CN106839759 A CN 106839759A CN 201510877400 A CN201510877400 A CN 201510877400A CN 106839759 A CN106839759 A CN 106839759A
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- China
- Prior art keywords
- kiln
- automatically
- zone
- magnetic material
- tail
- 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.)
- Pending
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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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring devices
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
- F27B2009/124—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Tunnel Furnaces (AREA)
Abstract
Production line is automatically fired for producing magnetic material the invention discloses one kind, it solves prior art and there are problems that small yield, poor quality, high energy consumption, labour intensity, it is characterised in that：The roller kilns are modular assembling framework structure, and magnetic material product need to be through except pool, heating zone, firing area, main cold-zone and the great Qu of tail cold-zone five, setting and adjusting wind-warm syndrome device and multiple adjustable partitioning devices automatically in kiln；Unloader, go-on-go pack thread, charge mechanism and forming machine have been set gradually on the turning spur；Kiln hood is provided with and enter automatically kiln machine, kiln tail and be provided with automatic kiln discharge machine.Safe, temperature automatically controlled, monitoring alarm, data acquisition and communication will be heated to be combined as a whole, make the whole safe and efficient fully automatic operation of bar line.There is rational in infrastructure, high-yield high-quality, consume energy low, high degree of automation, can reduce labour intensity, operating efficiency can be greatly improved again and production cost is reduced, with extensive popularizing value.
Description
Technical field
The invention belongs to thermal technology's burning process equipment line, more particularly, to a kind of being used for suitable for modernization high-yield high-quality
Production magnetic material automatically fires production line.
Background technology
Magnetic material is by ferromagnetic material or ferrimagnetism material composition, as rapid technological growth has shown magnetic material
Material is important.Its purposes has many kinds.Such as application based on electromagnetic force principle mainly has：Loudspeaker, microphone, ammeter, press
Key, motor, relay, sensor, switch etc..Such as application based on magnetoelectricity action principle mainly has：Magnetron and travelling-wave tubes etc.
Microwave tube, kinescope, titanium pump, Microwave Iron Oxide Elements, magnetoresistance device, hall device etc..Such as it is based on magneticaction principle
Application mainly have：Magnetic bearing, ore separators, magnetic separtor, magnetic chuck, magnetic seal, magnetic blackboard, toy, label, password
Lock, duplicator, temperature control meter etc..Otherwise application also has：Magnetic therapy, magnetized water, magnetic anesthesia etc..
The invention is to fire production line for producing high performance magnetic material dedicated full-automatic.It is scientific and technological constantly progressive to magnetic
Every technical property requirements of material also more and more higher.Current pushed bat kiln and roller kilns presence yield poorly, high energy consumption, qualification rate
The low, production cycle is long, from change the problems such as control low degree causes big labour intensity, inefficiency, unstable product quality without
The demand of manufacturing enterprise's premium quality product and yield can be met.Several magnetic material kiln production lines of Introduced From Abroad in recent years
Equally yield poorly, and by technogenic influence, the problems such as product quality fluctuation is big..
The content of the invention
The purpose of the present invention is exactly that can reduce work for market provides a kind of high yield, low energy consumption, high-quality, low emission
Intensity, again can the magnetic material of greatly improve production efficiency automatically fire production line.
The technical scheme is that：It is by forming machine, charge mechanism, enter kiln machine, roller kilns, kiln discharge machine, turning spur,
Unloader, go-on-go pack thread and automaton etc. are constituted.The roller kilns are modular assembling framework structure, liner lightweight
Refractory material and insulation fibre module, additional paint-baking decorative plate are fixed using bolt, and good appearance, dismounting are flexible.Kiln body
1 support section uses rolling shaft structure, stable, shrinks uniform, and bulk expansion is safe and reliable.Technique and spy according to product
Property carry out reasonable Arrangement, kiln internal channel space structure, cross-section structure, each area's ratio, hole arrangement and setting for separating etc. are rationally.
0.9~1.5 meter of kiln inner width, 30~60 meters of overall length.Kiln hood is provided with and enter automatically kiln machine, kiln tail and be provided with automatic kiln discharge machine, in kiln
Multiple adjustable partitioning devices are set, and full kiln is divided into Wu great Qu.Controlling in 150 DEG C except pool in kiln, and it is equal to set hot blast
Separating device；In heating zone and fire area side kiln wall and interlock up and down the intensive arrangement heater of multiple spot, heater can be using height
Performance electric heater unit or gas-operated thermal bath facility；In main cold-zone, hot blast ejector and a cooling heat-exchanger are set；In tail cold-zone
Tail device for cooling is set；In the turning spur it is made up of row line end to end and file line, row line and file line junction end to end
There is provided turning hoistable platform, and unloader, go-on-go pack thread, charge mechanism and forming machine have been set gradually on file line.
, using 45 degree of helical gear packet transmissions, roller rod is using double fulcrum mixing supports, and Partner is supported for support roller, main for the transmission mechanism
Moved end supports for fixed, Helical gear Transmission, is driven by bearing block, big bevel pinion, power transmission shaft, driving motor, every roller rod
Roller aperture brick is sealed by double sets and is arranged on kiln within the walls, promote diaphragm capsule to be run from kiln hood to kiln tail by the rotation of a branch roller rod,
Roller rod is transmitted as variable frequency adjustment control.The automaton uses PLC+ industrial computer interlocked controls, by heating safety, automatically
Temperature control, monitoring alarm, data acquisition and communication are combined as a whole.
The beneficial effects of the invention are as follows：Due to the firing roller kilns, using pressing, division moduleization is prefabricated, live standardization group
The tower structure of dress, has the advantages that operating is fast, yield is high.Precisely full kiln is divided into by Product Process requirement and characteristic simultaneously
Multiple functional areas, 0.9-1.5 meters of kiln inner width, 30-60 meters of kiln total length, full kiln liner uses novel light heat-barrier material and insulation
Fiber mould.Using high-performance electric heater or gas-operated thermal bath facility.It is variable frequency adjustment control that product is transferred, and kiln is front and rear to be set certainly
Move into kiln discharge machine, and automatic rotating line be equipped with outside kiln, the outer operation of all kilns for example unloader, go-on-go pack thread, charge mechanism and
A whole set of the working procedure systemses such as forming machine are convenient and swift in automatic rotary on-line operation, not only ensure that kiln is normally continuous
Operation, and effectively saves manpower, improves production efficiency and product quality, improves labor strength, reducing energy consumption,
Discharge is reduced, high-quality and efficient production is realized.
The invention will be further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is production line general assembly structural plan schematic diagram of the present invention.
Fig. 2 is kiln body side structure schematic diagram of the present invention.
Fig. 3 is kiln body cross section structure schematic diagram of the present invention.
In figure：1 is kiln body, and 2 is that, into kiln machine, 3 is kiln discharge machine, and 4 is turning spur, and 5 is unloader, and 6 is go-on-go pack thread, 7
It is charge mechanism, 8 is forming machine, and 9 is water removing machine area, and 10 is heating zone, and 11 to fire area, and 12 is main cold-zone, and 13 is tail cold-zone,
14 is electric heater unit, and 15 is transmission mechanism, and 16 is waste discharge mouth, and 17 is waste discharge blower fan, and 18 to send air-heater, and 19 is automatic tune
Wind-warm syndrome device, 20 to send hot-blast main line, and 21 to take out hot-blast main's line, and 22 is pressure sensor, and 23 to change hot blast manifold, and 24 are
Hot blast ejector, 25 be tail device for cooling, 26 be waste discharge house steward, 27 be hot blast equipartition device, 28 be waste discharge branch pipe, 29 be between it is cold
Heat-exchanger rig, 30 is gas-operated thermal bath facility, and 31 is carrying roller, and 32 is fire resistant heat preserving module, and 33 is partitioning device in kiln, and 34 is temperature
Sensor, 35 is magnetic material product.36 is automaton.
Specific embodiment
As shown in figure 1, it be by forming machine, charge mechanism, enter kiln machine, roller kilns, kiln discharge machine, turning spur, unloader, point
Inspection pack thread and automaton etc. are constituted.The roller kilns are modular assembling framework structure, liner lightweight refracrory
With insulation fibre module 32, additional paint-baking decorative plate fixed using bolt, and good appearance, dismounting are flexible.Kiln body 1 is supported
Part uses rolling shaft structure, stable, shrinks uniform, and bulk expansion is safe and reliable.Technique and characteristic according to product are carried out
Reasonable Arrangement, setting of kiln internal channel space structure, cross-section structure, each area's ratio, hole arrangement and separation etc. are rationally.Kiln inner width
0.9~1.5 meter, 30~60 meters of overall length.Full kiln is divided into except pool 9, heating zone 10, fires area 11, main cold-zone 12, tail cold-zone 13 5
Great Qu, it both can be motor magnetic tile, magnet ring, magnetic ball or other special-shaped magnetic material products to fire magnetic material product 35.In kiln
Multiple adjustable partitioning devices 33 are set, kiln temperature is separated by technological requirement, pressure sensor 22 is additionally provided with kiln
With temperature sensor 34, favourable high-quality product firing.Controlling in 150 DEG C except pool 9 in kiln, and set and automatic adjust wind
Warm device 19, multigroup hot blast equipartition device 27 and waste discharge blower fan 17；Interlock up and down in heating zone 10 and the firing side kiln wall of area 11
The intensive arrangement heater of multiple spot, heater can use high-performance electric heater 14 or gas-operated thermal bath facility 30；It is cold in master
Area 12 sets and send air-heater 18 and hot blast ejector 24 and a cooling heat-exchanger 29；In tail cold-zone, tail device for cooling 25 is set；Kiln
Interior upper and lower space connection and reasonable arrangement, the height of heater distance product is appropriate so that thermal current circulates unimpeded, each section temperature in kiln
Degree is uniform.The magnetic material product 35 of firing is carried using supporting plate, and kiln hood is provided with and enter automatically kiln machine 2 and be used for product by setting
Feeding kiln is interior, kiln tail is provided with automatic kiln discharge machine 3 for product to be sent out outside kiln by setting.The turning spur is by row end to end
Line and file line are constituted, and row line is provided with turning hoistable platform with file line junction end to end, and is set successively on file line
Unloader 5, go-on-go pack thread 6, charge mechanism 7 and forming machine 8 are put.Forming machine 8 be used for formed product, charge mechanism 7 be by
Product installs provisioning request charging, and unloader 5 will bake magnetic material product 35 and be discharged on predetermined station, and go-on-go pack thread 6 is used
In product is carried out into go-on-go and packing.The transmission mechanism 15 is driven using 45 degree of helical gear packets, according to temperature and carrying weight
From unlike material roller rod 31 and using double fulcrum mixing supports, Partner is supported amount for support roller, and drive end is supported for fixed, tiltedly
Gear drive, is driven by bearing block, big bevel pinion, power transmission shaft, driving motor, and every roller rod is by double set sealing roller aperture bricks
Installed in kiln within the walls, product is promoted to be run from kiln hood to kiln tail by the rotation of a branch roller rod 31, roller rod 31 is transmitted as frequency conversion
Regulation control, promotes product to be run from kiln hood to kiln tail, and this transmission system occlusion is steady, uses reliability.It is described to automatically control
Device 36 uses PLC+ industrial computers interlocking Automatic Control, by the equipment such as kiln inner pressure sensor 22 and temperature sensor 34,
Safe, temperature automatically controlled, monitoring alarm, data acquisition and communication will be heated to be combined as a whole, make whole bar line it is safe and efficient it is complete from
Dynamic operation.
When implementing the present invention, magnetic material product 35 will be first molded by forming machine 8, then be to produce by charge mechanism 7
Product are installed provisioning request and are fed on supporting plate to be installed, are conveyed by turning spur 4 and are delivered on kiln hood row line through turning elevating mechanism,
Deliver to enter on kiln machine automatically successively by delivery roll rod 31, follow procedure setting is in order sent into kiln product, is removed water through roller kilns
Area 9, heating zone 10, the firing in firing area 11, then reach kiln tail behind main cold-zone 12, tail cold-zone 13.Except the heating source of pool 9 is first
The hot blast ejector 24 of main cold-zone 12 and a cooling heat-exchanger 29 are changed into hot blast manifold 23 through multigroup by taking out hot-blast main's line 21,
By sending air-heater 18 to adjust wind-warm syndrome device 19 by hot blast feeding is automatic, again via sending hot-blast main's line 20 by hot blast after thermostatic control
Multigroup hot blast equipartition device 27 is sent into, is uniformly distributed to product.Product dehydrate is not only improved, and reduces energy consumption very well；Water removal
Area 9 and the waste gas of heating zone 10 are discharged by waste discharge blower fan 17 by waste discharge branch pipe 28 and waste discharge house steward 26 through waste discharge mouth 16.It is arranged on
The automatic kiln discharge machine 3 of kiln tail is used to pull out product from kiln, and product will be along the lower road work of the transfermatic road of turning spur 4 feeding
Sequence.Unloader 5 will bake product and be discharged on predetermined station, and go-on-go pack thread 6 is used to for product to carry out go-on-go and packing.Press
PLC setting programs, magnetic material product 35 is sent into kiln be fired automatically, such iterative cycles.With technique it is advanced, knot
Structure rationally, high-yield high-quality, the low row of low consumption, high degree of automation the advantages of, can be widely applied to magnetic materials production enterprise, it is pushed away
Wide application will bring abundant economic benefit to enterprise's production.
Claims (4)
1. a kind of automatically to fire production line for producing magnetic material, it is by forming machine, charge mechanism, enters kiln machine, roller-way
Kiln, kiln discharge machine, turning spur, unloader, go-on-go pack thread and automaton；It is characterized in that：The roller kilns are unit
Formula assembling framework structure, liner lightweight refracrory and insulation fibre module 32, the support section of kiln body 1 use rolling shaft structure, kiln
0.9~1.5 meter of inner width, 30~60 meters of overall length, full kiln are divided into except pool 9, heating zone 10, fire area 11, main cold-zone 12, tail cold-zone
Multiple adjustable partitioning devices 33, pressure sensor 22 and temperature sensor 34 are set in 13 5 great Qu, kiln, in heating zone 10 and burning
The side kiln wall of area processed 11 interlocks the intensive arrangement heater of multiple spot up and down, and tail device for cooling 25, the magnetic of firing are set in tail cold-zone
Material product 35 is carried using supporting plate；Kiln hood be provided with automatically enter kiln machine 2, kiln tail be provided with automatic kiln discharge machine 3；In turning spur
Unloader 5, go-on-go pack thread 6, charge mechanism 7 and forming machine 8 have been set gradually on file line；Transmission mechanism 15 is oblique using 45 degree
Gear packet transmission, from unlike material roller rod 31 and using double fulcrum mixing supports；Automaton 36 is complete using interlocking
Automatically control, safe, temperature automatically controlled, monitoring alarm, data acquisition and communication will be heated and be combined.
It is 2. according to claim 1 automatically to fire production line for producing magnetic material, it is characterised in that：The heating
Device is using high-performance electric heater 14 or gas-operated thermal bath facility 30.
It is 3. according to claim 1 automatically to fire production line for producing magnetic material, it is characterised in that：The water removal
Area 9 is controlled in 150 DEG C, is to use main cold-zone waste heat wind, and is provided with automatic tune wind-warm syndrome device 19, multigroup hot blast equipartition device 27
With waste discharge blower fan 17.
It is 4. according to claim 1 automatically to fire production line for producing magnetic material, it is characterised in that：It is described in master
Cold-zone 12 is provided with hot blast ejector 24 and a cooling heat-exchanger 29.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877400.5A CN106839759A (en) | 2015-12-04 | 2015-12-04 | Production line is automatically fired for producing magnetic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877400.5A CN106839759A (en) | 2015-12-04 | 2015-12-04 | Production line is automatically fired for producing magnetic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106839759A true CN106839759A (en) | 2017-06-13 |
Family
ID=59149099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510877400.5A Pending CN106839759A (en) | 2015-12-04 | 2015-12-04 | Production line is automatically fired for producing magnetic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106839759A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111418093A (en) * | 2017-12-01 | 2020-07-14 | 株式会社Posco | Secondary battery anode material sintering device and sintering method |
| CN114485155A (en) * | 2022-01-28 | 2022-05-13 | 黄冈市华窑中晋窑炉设备有限公司 | Roller kiln for calcining calcium oxide at high temperature |
| CN115200356A (en) * | 2022-06-24 | 2022-10-18 | 江西鼎盛新材料科技有限公司 | Lithium porcelain stone calcining roller kiln structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202371999U (en) * | 2011-12-20 | 2012-08-08 | 湖南省醴陵市科发窑炉热工设备有限公司 | Novel roller kiln structure |
| CN103743230A (en) * | 2013-12-03 | 2014-04-23 | 信阳方浩实业有限公司 | Roller kiln for producing light insulation ceramic plates (bricks) |
| CN204100788U (en) * | 2014-07-15 | 2015-01-14 | 黄冈市华窑中浩窑炉有限公司 | A kind of rare earth roller kilns |
| CN104909547A (en) * | 2015-06-15 | 2015-09-16 | 胡斯友 | High-efficiency and energy-saving kiln production line for producing high-performance foam glass |
| CN204689874U (en) * | 2015-06-15 | 2015-10-07 | 胡斯友 | Full-automatic foam glass foaming kiln |
| CN205300232U (en) * | 2015-12-04 | 2016-06-08 | 湖北华远窑炉有限公司 | Full -automatic magnetic material fires roller kilns |
-
2015
- 2015-12-04 CN CN201510877400.5A patent/CN106839759A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202371999U (en) * | 2011-12-20 | 2012-08-08 | 湖南省醴陵市科发窑炉热工设备有限公司 | Novel roller kiln structure |
| CN103743230A (en) * | 2013-12-03 | 2014-04-23 | 信阳方浩实业有限公司 | Roller kiln for producing light insulation ceramic plates (bricks) |
| CN204100788U (en) * | 2014-07-15 | 2015-01-14 | 黄冈市华窑中浩窑炉有限公司 | A kind of rare earth roller kilns |
| CN104909547A (en) * | 2015-06-15 | 2015-09-16 | 胡斯友 | High-efficiency and energy-saving kiln production line for producing high-performance foam glass |
| CN204689874U (en) * | 2015-06-15 | 2015-10-07 | 胡斯友 | Full-automatic foam glass foaming kiln |
| CN205300232U (en) * | 2015-12-04 | 2016-06-08 | 湖北华远窑炉有限公司 | Full -automatic magnetic material fires roller kilns |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111418093A (en) * | 2017-12-01 | 2020-07-14 | 株式会社Posco | Secondary battery anode material sintering device and sintering method |
| CN114485155A (en) * | 2022-01-28 | 2022-05-13 | 黄冈市华窑中晋窑炉设备有限公司 | Roller kiln for calcining calcium oxide at high temperature |
| CN115200356A (en) * | 2022-06-24 | 2022-10-18 | 江西鼎盛新材料科技有限公司 | Lithium porcelain stone calcining roller kiln structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |