CN215114023U - Energy-saving reaction furnace for graphite processing - Google Patents
Energy-saving reaction furnace for graphite processing Download PDFInfo
- Publication number
- CN215114023U CN215114023U CN202023013744.7U CN202023013744U CN215114023U CN 215114023 U CN215114023 U CN 215114023U CN 202023013744 U CN202023013744 U CN 202023013744U CN 215114023 U CN215114023 U CN 215114023U
- Authority
- CN
- China
- Prior art keywords
- hot oil
- pipe
- liquid nitrogen
- reaction furnace
- graphite
- 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.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 41
- 239000010439 graphite Substances 0.000 title claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 title claims description 26
- 239000007789 gas Substances 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 76
- 239000007788 liquid Substances 0.000 claims description 41
- 229910052757 nitrogen Inorganic materials 0.000 claims description 36
- 239000006200 vaporizer Substances 0.000 claims description 15
- 241000220317 Rosa Species 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- 239000000567 combustion gas Substances 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 18
- 239000002994 raw material Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 238000005087 graphitization Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003831 antifriction material Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001095 motoneuron effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The utility model discloses an energy-saving reacting furnace for graphite processing belongs to graphite production technical field, which comprises a bracket and a housin, support top fixedly connected with casing, the inside fixed mounting of casing has reacting furnace, casing top fixed mounting has driving motor, the supporting discharging pipe that is provided with in reacting furnace below, the supporting blast pipe that is provided with in reacting furnace top, and the integration of puddler both sides is provided with the stirring leaf, its discharging pipe below is provided with the bleeder valve, casing side fixed mounting has the rose box, inside fixed connection by the hepa filter screen from top to bottom in proper order of its rose box, tiny molecular filter screen and active carbon adsorb the net, and the blast pipe extends to the inside top of rose box, the supporting gas outlet that is provided with in its rose box below. The utility model discloses a set up the rose box, can loop through hepa filter screen, tiny molecular filter and active carbon adsorption net with the interior combustion gas of reacting furnace and discharge after filtering the absorption, improve the protection dynamics to the environment.
Description
Technical Field
The utility model belongs to the technical field of graphite production, specifically be an energy-saving reacting furnace for graphite processing.
Background
Graphite is a crystalline carbon, a hexagonal system, is iron ink to dark gray, is soft, has a greasy feeling, can conduct electricity, is inactive in chemical property, resists corrosion, is not easy to react with acid, alkali and the like, can be combusted to generate carbon dioxide by being heated in air or oxygen, can be oxidized into organic acid by a strong oxidant, is used as an antifriction agent and a lubricating material, is used for manufacturing crucibles, electrodes, dry batteries, pencil cores and the like, can be used as a neutron moderator on a nuclear reactor, is often called carbon essence or black lead, and is mistakenly considered as lead in the past, the current graphite production reaction furnace is generally a graphitization furnace, and the graphitization process needs high temperature of 3000 degrees.
Because the graphitization process needs a high temperature of 3000 degrees, a long-time cooling process exists after the graphite production, the process time of the graphitization production is greatly prolonged, the production efficiency of the graphite is reduced, in the process of heating the graphite, the graphite raw material is unevenly heated in the reaction furnace, and certain influence is generated on the environment when gas generated in the heating process is directly discharged outwards, so that the energy-saving reaction furnace for processing the graphite is needed to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problems that the temperature reduction time is long in the using process of the existing graphite reaction furnace and the graphite is heated, the graphite raw material is not uniformly heated in the reaction furnace, and certain influence is generated on the environment when gas generated in the heating process is directly discharged outwards, the energy-saving reaction furnace for processing the graphite is provided.
The utility model adopts the technical scheme as follows: the utility model provides an energy-saving reacting furnace for graphite processing, includes support and casing, support top fixedly connected with casing, the inside fixed mounting of casing has the reacting furnace.
The improved stirring device comprises a shell, a stirring rod, a discharging pipe, an exhaust pipe, stirring blades and a discharging valve, wherein a driving motor is fixedly mounted above the shell, the stirring rod is connected to the lower portion of the driving motor in a rotating mode, the discharging pipe is arranged on the lower portion of the reaction furnace in a matching mode, the exhaust pipe is arranged on the upper portion of the reaction furnace in a matching mode, the two sides of the stirring rod are integrally provided with the stirring blades, and the discharging valve is arranged below the discharging pipe.
Wherein, casing side fixed mounting has the rose box, and inside from top to bottom fixed connection in proper order of its rose box is by hepa filter screen, tiny molecule filter screen and active carbon adsorption net, and the blast pipe extends to the inside top of rose box, and the supporting gas outlet that is provided with in its rose box below.
The hot oil pump is fixedly mounted below the inner portion of the shell, a hot oil pipe is arranged on the side face of the hot oil pump in a matched mode, a hot oil heater is fixedly mounted above the support, the hot oil pipe is wound outside the reaction furnace, and one end of the hot oil pipe is connected with the hot oil heater.
The device comprises a shell, a discharge pipe, a support, a liquid nitrogen vaporizer, a liquid nitrogen circulating refrigerator, a liquid nitrogen evaporator, a gas pipe winding and arranging device and is characterized in that the liquid nitrogen vaporizer is fixedly installed on the lower portion of the inner portion of the shell, the gas pipe is arranged above the liquid nitrogen vaporizer in a matched mode, the liquid nitrogen circulating refrigerator is fixedly installed on the upper portion of the support, the gas pipe is wound and arranged outside the discharge pipe, and one end of the gas pipe is connected with the liquid nitrogen circulating refrigerator.
The driving motor, the hot oil pump, the hot oil heater, the liquid nitrogen vaporizer and the liquid nitrogen circulating refrigerator are electrically connected with an external power supply through leads.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, through setting up driving motor, when the graphite raw materials gets into the reacting furnace and heats, drive the puddler and rotate under driving motor's effect, and then the stirring leaf that makes the puddler both sides setting stirs the graphite raw materials, make the heat in graphite raw materials and the air carry out abundant contact, and with hot oil pipe and hot oil heater cyclic connection, through the inside input heating oil of hot oil pump to hot oil pipe, carry out heat conduction heating to the reacting furnace through the inside heating oil of hot oil pipe, the heating oil after the use passes through in the hot oil pipe input hot oil heater, heat once more to it, make heating oil recycle, improve the heating efficiency to the reacting furnace simultaneously, make the heating of inside graphite raw materials more abundant.
2. The utility model discloses in, through setting up the rose box, can loop through hepa filter screen, tiny molecular filter screen and active carbon adsorption net with the interior combustion gas of reacting furnace and filter and adsorb the back and discharge again, improve the protection dynamics to the environment.
3. The utility model discloses in, through setting up the liquid nitrogen vaporizer, when graphite passes through the discharging pipe discharge through the high temperature reaction, open the liquid nitrogen vaporizer simultaneously and make the liquid nitrogen turn into in the gaseous inflow gas-supply pipe and then carry out cooling to the liquid nitrogen gas that the discharging pipe passes through the gas-supply pipe inside, be connected the one end of gas-supply pipe with liquid nitrogen circulating refrigeration machine simultaneously, make liquid nitrogen gas get into liquid nitrogen circulating refrigeration machine again and carry out the circulation refrigeration, improve the utilization efficiency to the liquid nitrogen, improve graphite production efficiency simultaneously.
Drawings
FIG. 1 is a schematic diagram of the overall front structure of the present invention;
FIG. 2 is a schematic sketch of the three-dimensional structure of the middle discharging pipe of the present invention;
fig. 3 is a schematic diagram of the distribution structure of the hot oil pipe on the side surface of the reaction furnace.
The labels in the figure are: 1. a support; 2. a housing; 3. a reaction furnace; 301. a drive motor; 302. a stirring rod; 303. a discharge pipe; 304. an exhaust pipe; 4. a filter box; 401. a hepa filter screen; 402. a fine molecular filter screen; 403. an activated carbon adsorption net; 5. a hot oil pump; 501. a hot oil pipe; 6. a hot oil heater; 7. a liquid nitrogen vaporizer; 701. a gas delivery pipe; 8. and a liquid nitrogen circulating refrigerator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses in:
referring to fig. 1-3, an energy-saving reaction furnace for graphite processing comprises a support 1 and a shell 2, wherein the shell 2 is fixedly connected above the support 1, and a reaction furnace 3 is fixedly arranged in the shell 2.
Further, 2 top fixed mounting on casing 2 has driving motor 301, driving motor 301 below rotates and is connected with puddler 302, the supporting discharging pipe 303 that is provided with in 3 below of reacting furnace, the supporting blast pipe 304 that is provided with in 3 tops of reacting furnace, and puddler 302 both sides integration is provided with the stirring leaf, its discharging pipe 303 below is provided with the bleeder valve, when graphite raw materials gets into reacting furnace 3 and heats, drive puddler 302 and rotate under driving motor 301's effect, and then make the stirring leaf that puddler 302 both sides set up stir graphite raw materials, make the heat in graphite raw materials and the air carry out abundant contact.
Furthermore, a filter box 4 is fixedly installed on the side surface of the shell 2, the interior of the filter box 4 is sequentially and fixedly connected with a hepa filter screen 401, a fine molecular filter screen 402 and an active carbon adsorption screen 403 from top to bottom, the exhaust pipe 304 extends to the upper portion of the interior of the filter box 4, an air outlet is formed in the lower portion of the filter box 4 in a matched mode, exhaust gas in the reaction furnace can be exhausted after being filtered and adsorbed through the hepa filter screen 401, the fine molecular filter screen 402 and the active carbon adsorption screen 403 in sequence, and the protection force on the environment is improved.
Further, a hot oil pump 5 is fixedly installed below the inner portion of the shell 2, a hot oil pipe 501 is arranged on the side face of the hot oil pump 5 in a matched mode, a hot oil heater 6 is fixedly installed above the support 1, the hot oil pipe 501 is wound and arranged outside the reaction furnace 3, one end of the hot oil pipe 501 is connected with the hot oil heater 6, the hot oil pipe 501 is connected with the hot oil heater 6 in a circulating mode, heating oil in the hot oil pipe 501 can be heated in a heat conduction mode, heating efficiency of the reaction furnace 3 is improved, and the graphite raw materials in the hot oil pipe 501 are heated more fully.
Further, a liquid nitrogen vaporizer 7 is fixedly installed below the inner portion of the shell 2, a gas pipe 701 is arranged above the liquid nitrogen vaporizer 7 in a matched mode, a liquid nitrogen circulating refrigerator 8 is fixedly installed above the support 1, the gas pipe 701 is wound and arranged outside the discharging pipe 303, one end of the gas pipe 701 is connected with the liquid nitrogen circulating refrigerator 8, when graphite is discharged through the discharging pipe 303 through high-temperature reaction, the liquid nitrogen vaporizer 7 and the liquid nitrogen circulating refrigerator 8 are simultaneously started to cool raw materials circulating in the discharging pipe 303, and the production efficiency of the graphite is improved.
Further, the driving motor 301, the hot oil pump 5, the hot oil heater 6, the liquid nitrogen vaporizer 7 and the liquid nitrogen circulating refrigerator 8 are electrically connected with an external power supply through leads.
The working principle is as follows: in use the utility model provides a pair of during reactor is used in energy-saving graphite processing, at first, with hot oil pipe 501 and hot oil heater 6 circulation connection, then through hot oil pump 5 to the inside input heating oil of hot oil pipe 501, carry out the heat conduction heating to reactor 3 through the inside heating oil of hot oil pipe 501, heating oil after the use passes through in hot oil pipe 501 input hot oil heater 6, heat it once more, make the heating oil recycle, then pour the graphite raw materials into reactor 3 in through the inlet pipe, drive puddler 302 rotation under driving motor 301's effect simultaneously, and then make the stirring leaf that puddler 302 both sides set up stir the graphite raw materials, make the graphite raw materials fully contact with the heat in the air, gas that in-process stirring heating was carried out to the graphite raw materials discharges into rose box 4 through blast pipe 304 in, then loop through the hepa filter screen 401 that sets up in rose box 4, The fine molecular filter screen 402 and the activated carbon adsorption screen 403 are discharged after filtration and adsorption, when graphite raw materials are discharged through the discharge pipe 303 after being heated, the liquid nitrogen vaporizer 7 is simultaneously started to convert liquid nitrogen into gas to flow into the gas delivery pipe 701 so as to cool the discharge pipe 303 through the liquid nitrogen gas inside the gas delivery pipe 701, one end of the gas delivery pipe 701 is simultaneously connected with the liquid nitrogen circulating refrigerator 8, the liquid nitrogen gas enters the liquid nitrogen circulating refrigerator 8 again for circulating refrigeration, the utilization efficiency of liquid nitrogen is improved, finally, the graphite is discharged by starting the discharge valve arranged below the discharge pipe 303 after cooling, and the operation of the device is completed.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides an energy-saving reacting furnace for graphite processing, includes support (1) and casing (2), support (1) top fixedly connected with casing (2), its characterized in that: a reaction furnace (3) is fixedly arranged in the shell (2), a driving motor (301) is fixedly arranged above the shell (2), a stirring rod (302) is rotatably connected below the driving motor (301), a discharging pipe (303) is arranged below the reaction furnace (3) in a matching manner, an exhaust pipe (304) is arranged above the reaction furnace (3) in a matching manner, stirring blades are integrally arranged on two sides of the stirring rod (302), and a discharging valve is arranged below the discharging pipe (303);
a filter box (4) is fixedly installed on the side face of the shell (2), a hepa filter screen (401), a fine molecule filter screen (402) and an activated carbon adsorption screen (403) are fixedly connected to the interior of the filter box (4) from top to bottom in sequence, the exhaust pipe (304) extends to the upper portion of the interior of the filter box (4), and an air outlet is formed in the lower portion of the filter box (4) in a matched mode;
the improved gas-liquid separator is characterized in that a liquid nitrogen vaporizer (7) is fixedly mounted on the inner lower portion of the shell (2), a gas pipe (701) is arranged above the liquid nitrogen vaporizer (7) in a matched mode, a liquid nitrogen circulating refrigerator (8) is fixedly mounted on the upper portion of the support (1), the gas pipe (701) is wound on the outer portion of the discharging pipe (303), and one end of the gas pipe (701) is connected with the liquid nitrogen circulating refrigerator (8).
2. The energy-saving reaction furnace for processing graphite as claimed in claim 1, wherein: the hot oil pump (5) is fixedly installed below the inner portion of the shell (2), a hot oil pipe (501) is arranged on the side face of the hot oil pump (5) in a matched mode, a hot oil heater (6) is fixedly installed above the support (1), the hot oil pipe (501) is wound and arranged outside the reaction furnace (3), and one end of the hot oil pipe (501) is connected with the hot oil heater (6).
3. The energy-saving reaction furnace for processing graphite as claimed in claim 1, wherein: the driving motor (301), the hot oil pump (5), the hot oil heater (6), the liquid nitrogen vaporizer (7) and the liquid nitrogen circulating refrigerator (8) are electrically connected with an external power supply through leads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023013744.7U CN215114023U (en) | 2020-12-15 | 2020-12-15 | Energy-saving reaction furnace for graphite processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023013744.7U CN215114023U (en) | 2020-12-15 | 2020-12-15 | Energy-saving reaction furnace for graphite processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215114023U true CN215114023U (en) | 2021-12-10 |
Family
ID=79307296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023013744.7U Active CN215114023U (en) | 2020-12-15 | 2020-12-15 | Energy-saving reaction furnace for graphite processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215114023U (en) |
-
2020
- 2020-12-15 CN CN202023013744.7U patent/CN215114023U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103170334B (en) | Carbon-supported cobalt oxide catalyst and preparation and application thereof | |
| CN106025178B (en) | It is a kind of to prepare the method for metal oxide and its application in lithium cell cathode material by template of MOF | |
| CN110911696A (en) | Platinum-carbon catalyst, preparation method thereof and application thereof in fuel cell cathode catalyst | |
| CN106058276A (en) | Preparation method of silica-modified multi-spherical-cavity carbon material and application of carbon material to fuel cell membrane electrode | |
| CN104201396B (en) | Carbon electrode modified by cerium-zirconium oxide, preparation method and flow battery | |
| CN215114023U (en) | Energy-saving reaction furnace for graphite processing | |
| CN104617292A (en) | Preparation method of high-capacity spherical Li(Ni, Co, Al)O2 cathode material | |
| CN114989447A (en) | Water-stable mixed-valence MOF material, preparation method thereof and application thereof in photocatalytic water decomposition | |
| CN214254479U (en) | Heat dissipation device based on vanadium cell | |
| CN212855775U (en) | Reation kettle is used in oxygen production | |
| CN109065864A (en) | Carbon/tin oxide/graphene composite material and its preparation method and application | |
| CN110280247A (en) | A kind of carbon fibre material load C oB method for preparing catalyst and its purposes in terms of preparing hydrogen by sodium borohydride hydrolysis | |
| CN111883750B (en) | Ternary precursor doping and cladding device and using method thereof | |
| CN108654541A (en) | A kind of reaction unit of novel precursor | |
| CN1886853A (en) | Fuel cell system | |
| CN108786868A (en) | A kind of preparation method of nickel phosphorus/fluorine doped reduction-oxidation graphite liberation of hydrogen composite material | |
| CN108455567A (en) | The packaged type carbon nano-tube film preparation facilities of thermoelectricity carrier gas trilogy supply | |
| KR100691524B1 (en) | Mass production apparatus of catalyst for manufacturing carbon nanotube | |
| CN107134579B (en) | Preparation method of carbon material for positive electrode conductive agent | |
| CN220537501U (en) | Activation furnace capable of being heated uniformly | |
| CN201962084U (en) | Device for preparing rare-earth fluoride | |
| CN104852060A (en) | Preparation method of non-platinum fuel-cell catalyst taking polybenzimidazole as nitrogen source | |
| CN218047300U (en) | Hypergravity carbon dioxide adsorption equipment | |
| CN111495350A (en) | Nano Co9S8-porous carbon nanofiber oxygen reduction catalyst and preparation method thereof | |
| CN112337222A (en) | Diffusion furnace exhaust treatment device for solar cell production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 111000 No.11 xingliu Road, Liaoyang County, Liaoyang City, Liaoning Province Patentee after: Liaoning Hongda new material technology Co.,Ltd. Address before: 111000 No.11 xingliu Road, Liaoyang County, Liaoyang City, Liaoning Province Patentee before: Liaoning Hongda Electric Carbon Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |