CN102002247A - Electromagnetic wave heater for asphalt heating - Google Patents
Electromagnetic wave heater for asphalt heating Download PDFInfo
- Publication number
- CN102002247A CN102002247A CN2010105706249A CN201010570624A CN102002247A CN 102002247 A CN102002247 A CN 102002247A CN 2010105706249 A CN2010105706249 A CN 2010105706249A CN 201010570624 A CN201010570624 A CN 201010570624A CN 102002247 A CN102002247 A CN 102002247A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic wave
- pitch
- heating
- wave
- heater
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 67
- 239000010426 asphalt Substances 0.000 title abstract description 10
- 238000009413 insulation Methods 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 206010000372 Accident at work Diseases 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 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
- Resistance Heating (AREA)
Abstract
The invention relates to an electromagnetic wave heater for asphalt heating, which is characterized by comprising a cylindrical housing, wherein more than five layers of cylindrical clapboards for forming annular flow ways are arranged between an upper cover and a lower cover of the housing and are coaxial with the cylindrical wall; a plurality of strip-shaped vertical clapboard-type electromagnetic wave heaters penetrate through the upper and lower covers of the housing and are arranged between the adjacent cylindrical clapboards along a radial direction; the annular flow ways are divided into a plurality of fan-shaped section heat exchanging regions; an overflowing opening is arranged at the upper end or the lower end of each electromagnetic wave heater; the overflowing openings of the adjacent electromagnetic wave heaters are arranged at upper and lower opposite ends; a layer exchanging gap is arranged at an asphalt flowing tail end on the upper edge of each of the electromagnetic wave heaters corresponding to the front annular flow way; the bottom of the outermost annular flow way is connected with an asphalt inlet; the upper end of the central cylindrical clapboard is connected with an asphalt outlet; an insulating layer is arranged on the outer side of the housing; and each electromagnetic wave heater consists of a heat exchanging sheet and an infrared electromagnetic wave heating tube. The electromagnetic wave heater has the advantages of obtaining enough heat exchanging area, exactly controlling the temperature, saving the energy, reducing the consumption and ensuring the safe production.
Description
Technical field
The present invention relates to a kind of pitch industry that is used for to the heating unit that matrix pitch and rubber powder modified asphalt heat, relate in particular to a kind of wave heater that is used for the pitch heating.
Background technology
At present in the pitch industry especially in rubber powder modified asphalt is produced, the heating of matrix pitch and rubber powder modified asphalt, all be to finish by fire coal, diesel oil or oil and gas burning, its major defect is that temperature is difficult to accurate control, makes that to be heated material overheated, forms coking on the heating tube tube wall, and cause industrial accident easily, energy consumption is increased, and by flame heating, thermo-efficiency is low; Especially in short supply day by day along with petroleum products, production cost improves constantly, and influences the industry normal development.Therefore, how to improve type of heating, realize accurately control Heating temperature, save energy and safety in production become the industry concerned issue
Summary of the invention
Main purpose of the present invention is at the problems referred to above, a kind of wave heater that is used for the pitch heating is provided, by adopting infra-red electromagnetic wave heater and full of twists and turns solid circulation heat tunnel structure, obtain competent heat interchanging area, reach accurate controlled temperature, energy-saving and cost-reducing, guarantee the effect of safety in production.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of wave heater that is used for the pitch heating, it is characterized in that being provided with cylinder type shell, form the round shape dividing plate of annular channel being coaxially set more than 5 layers with cylindrical wall between the housing upper and lower covers, some bar shaped vertical clapboard formula hertzian wave heating members run through that the housing upper and lower covers is radially uniform to be arranged between the adjacent cylinders shape dividing plate, and the runner that should go in ring is divided into some sector crosssection heat transfer zone; Described hertzian wave heating member upper end or lower end were provided with head piece, and the head piece of crossing of adjacent hertzian wave heating member is arranged on end opposite up and down; One deck annular channel pitch flow end was provided with one and changes a layer gap before the upper edge of described each round shape dividing plate was corresponding successively, and the bottom of outermost layer annular channel connects the pitch import, and the upper end of center circle tubular dividing plate connects the pitch outlet; In hull outside thermal insulation layer is set.
Described bar shaped vertical clapboard formula hertzian wave heating member is to be made of bar shaped vertical clapboard formula heat exchanger fin and setting-in electromagnetic infrared wave heating tube wherein.
Described bar shaped vertical clapboard formula heat exchanger fin is to be the symmetrically arranged U-shaped of the in-line cross section wing by the vertical tube of setting-in electromagnetic infrared wave heating tube and both sides thereof to constitute.
Between described housing upper and lower covers and the thermal insulation layer heating member power patch panel is set respectively.
The invention has the beneficial effects as follows: provide a kind of wave heater that is used for the pitch heating, have full of twists and turns solid circulation heat tunnel structure, add hot path and can reach more than 130 meters, make asphaltene obtain competent heat interchanging area; Especially adopt radiant ratio height, penetrance is strong, thermal conversion efficiency is high electromagnetic infrared wave heating tube as heating unit, can reach accurate control Heating temperature, energy-saving and cost-reducing by system's setting and monitoring, guarantee the effect of safety in production, Heating temperature can be accurate to ± and 1 ℃, energy-conservation compared with the prior art reaching more than 30%.
Description of drawings
Fig. 1 is that master of the present invention looks cross-sectional view;
Fig. 2 is the vertical view that the present invention removes upper cover part;
Fig. 3 is the I enlarged view among Fig. 2;
Fig. 4 is the F enlarged view among Fig. 2.
Among the figure: the outlet of 1 pitch, 2 housings, 21 loam cakes, 22 cylindrical shells, 23 lower covers, heating member power patch panel on 31,32 times heating member power patch panels, 4 hertzian wave heating members, 41 heat exchanger fins, 42 electromagnetic infrared wave heating tubes, 43 cross head piece, 5 pitch imports, the 51 sector crosssection heat transfer zone that are communicated with the pitch import, 61-66 round shape dividing plate, 610-660 circulation road, 7 thermal insulation layers, 81-86 change a layer gap, 9 guide rail brackets.
Below in conjunction with drawings and Examples to the detailed description of the invention.
Embodiment
Fig. 1～Fig. 4 illustrates a kind of wave heater that is used for the pitch heating, it is characterized in that being provided with cylinder type shell 2, between housing upper and lower cover 21,23, be coaxially set more than 5 layers and form the round shape dividing plate of annular channel with cylindrical shell 22, be provided with 6 layers of round shape dividing plate 61-66 in the present embodiment, form annular channel 610-660; Some bar shaped vertical clapboard formula hertzian wave heating members 4 run through housing upper and lower cover 21,23 radially uniform being arranged between the adjacent cylinders shape dividing plate, and this annular channel is divided into some sector crosssection heat transfer zone; Above-mentioned hertzian wave heating member 4 upper ends or lower end were provided with head piece 43, and the head piece of crossing of adjacent hertzian wave heating member is arranged on end opposite up and down; One deck annular channel pitch flow end was provided with one and changes a layer gap 81-86 before the upper edge of above-mentioned each round shape dividing plate 61-66 was corresponding successively, and the bottom of outermost layer annular channel 610 connects pitch import 5, and the upper end of center circle tubular dividing plate 66 connects pitch outlet 1; In hull outside thermal insulation layer 7 is set.
Above-mentioned bar shaped vertical clapboard formula hertzian wave heating member 4 is to be made of bar shaped vertical clapboard formula heat exchanger fin 41 and setting-in electromagnetic infrared wave heating tube 42 wherein.Above-mentioned bar shaped vertical clapboard formula heat exchanger fin 41 is to be the symmetrically arranged U-shaped of the in-line cross section wing by the vertical tube of setting-in electromagnetic infrared wave heating tube 42 and both sides thereof to constitute.Upper and lower heating member power patch panel 31,32 is set respectively between above-mentioned housing upper and lower cover 21,23 and thermal insulation layer 7, and electromagnetic infrared wave heating tube 42 is connected with power patch panel 31,32 respectively.
In actual fabrication, above-mentioned hertzian wave heating member 4 inserts by the guide rail bracket 9 that is arranged on the round shape dividing plate, its two ends be separately fixed at loam cake with under cover.Above-mentioned thermal insulation layer 7 has adopted the rock wool thermal insulation material.
Above-mentioned electromagnetic infrared wave heating tube has adopted Baoding three to like that the HGR serial model No. that energy technology Development Co., Ltd produces is the electromagnetic infrared wave heating tube of HGR-A-32, and its surfacing of this heating unit is with SiO
2Be main carrier, and add various trace elements, and materials such as metal, nonmetal oxide, fluorochemical, nitride, carbide or boride, behind high temperature sintering, constitute a kind of ceramic body of novel high radiant rate.Heat form is to heat in the radiative transfer mode, the radiant ratio height, and radiation is even, and penetrance is strong, makes to be heated the effect that material can reach surface and inner synchronous heating.The part energy of electromagnetic infrared wave heating tube nichrome wire is sent with the infra-red electromagnetic waveshape, another part then sends with the visible light form, this ceramic heat pipe is owing to have the directed radiation performance and the visible light composition can be changed into the characteristic of electromagnetic infrared wave heat energy, reduced the internal energy loss, the thermal conversion efficiency of electric energy can reach about 90%, especially its ingredient fusing point all between 1700 ℃～2500 ℃, chemical property is stable, long service life.
By the above-mentioned wave heater structure that is used for pitch heating as can be seen, during work, heated pitch at first enters the sector crosssection heat transfer zone 51 that is communicated with the pitch import from pitch import 5, at first flow then and heat through hertzian wave heating member 4 around outermost layer annular channel 610, in this annular channel, because the head piece 43 of crossing of adjacent hertzian wave heating member 4 is arranged on end opposite up and down; Therefore ought be successively through all plurality of sector heat transfer zone of ring, from upper and lower when crossing head piece 43 and flowing through, will be repeatedly through from top to bottom, solid that undulate from the bottom to top is full of twists and turns circulates the path, fully contact and carry out heat exchange with bar shaped vertical clapboard formula hertzian wave heating member.1.6 meters of diameters, be provided with 6 layers of round shape dividing plate 61-66 in the high 0.9 meter housing, form unidirectional loop runner 610-660, it adds hot path and can reach more than 130 meters, when pitch behind annular channel 610 ring Zhou Liudong one figure, enter annular channel 620 in this layer annular channel pitch flow end by changing layer gap 81, repeat said process, by that analogy, cycle through successively and change a layer gap 82-86, flow through annular channel 620-660 in entering center circle tubular dividing plate 66, and flow out from pitch outlet 1.Arrow is the pitch flow direction among Fig. 2, Fig. 3, and as shown in the figure, according to the position of offering of the fan-shaped heat transfer zone inner top heat exchange body 4 mistake head pieces 43 that change layer gap 82-86 correspondence, pitch can flow clockwise or counterclockwise.
The present invention is applied to the heating of matrix pitch and rubber powder modified asphalt, can be according to the flow (kg/min) of asphaltene, with heat up to require (℃/min) determine power demand, thereby determine the specification and the quantity of electromagnetic infrared wave heating tube, in the wave heater working process, operator can monitor working ordeies such as the pressure of well heater, temperature by supervising in real time at operation room, and can adjust various parameters at any time and realize accurately control Heating temperature, the control power consumption guarantees the demand that material heats up.
Show by the operation practice: use the hertzian wave asphalt heater, can make the material heating and temperature control be accurate to ± 1 ℃, the automatic controlling level height, compare with the conventional apparatus of equal production capacity, power consumption per ton is reduced to present power consumption per ton 150,000 kilojoules by 350,000 kilojoules, calculated in 4000 hours with year work, separate unit year is saved heat energy 6,000,000,000 kilojoules.In present Tianjin market value: 800 yuan/ton of coals, 7800 yuan/ton of diesel oil, 0.6 yuan of commercial power/degree, it is as follows that matrix pitch per ton is heated to 200 ℃ of power consumptions by initial 100 ℃: the coal-fired 40-45 of heating kilogram/ton, fuel Heating 6.5-7 kilogram/ton, electrically heated 15Kw/ ton.Amount to into Renminbi: fire coal heating 32-36 unit/ton, fuel Heating 50.7-54.7 unit/ton, 9 yuan/ton of electrically heated.
Present this technology industrialization condition maturity, if can be in the pitch industry, consequently more heating field obtains promoting, and will bring huge economical, societal benefits.
Claims (4)
1. one kind is used for the wave heater that pitch heats, it is characterized in that being provided with cylinder type shell, form the round shape dividing plate of annular channel being coaxially set more than 5 layers with cylindrical wall between the housing upper and lower covers, some bar shaped vertical clapboard formula hertzian wave heating members run through that the housing upper and lower covers is radially uniform to be arranged between the adjacent cylinders shape dividing plate, and the runner that should go in ring is divided into some sector crosssection heat transfer zone; Described hertzian wave heating member upper end or lower end were provided with head piece, and the head piece of crossing of adjacent hertzian wave heating member is arranged on end opposite up and down; One deck annular channel pitch flow end was provided with one and changes a layer gap before the upper edge of described each round shape dividing plate was corresponding successively, and the bottom of outermost layer annular channel connects the pitch import, and the upper end of center circle tubular dividing plate connects the pitch outlet; In hull outside thermal insulation layer is set.
2. the wave heater that is used for the pitch heating according to claim 1 is characterized in that described bar shaped vertical clapboard formula hertzian wave heating member is to be made of bar shaped vertical clapboard formula heat exchanger fin and setting-in electromagnetic infrared wave heating tube wherein.
3. the wave heater that is used for pitch heating according to claim 2 is characterized in that described bar shaped vertical clapboard formula heat exchanger fin is to be the symmetrically arranged U-shaped of the in-line cross section wing by the vertical tube of setting-in electromagnetic infrared wave heating tube and both sides thereof to constitute.
4. according to claim 1, the 2 or 3 described wave heaters that are used for the pitch heating, it is characterized in that between described housing upper and lower covers and the thermal insulation layer heating member power patch panel being set respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105706249A CN102002247B (en) | 2010-12-02 | 2010-12-02 | Electromagnetic wave heater for asphalt heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105706249A CN102002247B (en) | 2010-12-02 | 2010-12-02 | Electromagnetic wave heater for asphalt heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102002247A true CN102002247A (en) | 2011-04-06 |
| CN102002247B CN102002247B (en) | 2012-05-23 |
Family
ID=43809963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105706249A Active CN102002247B (en) | 2010-12-02 | 2010-12-02 | Electromagnetic wave heater for asphalt heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102002247B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424726A (en) * | 2011-12-13 | 2012-04-25 | 天津海泰环保科技发展有限公司 | High-efficiency electromagnetic wave asphalt heater |
| CN103866676A (en) * | 2014-03-18 | 2014-06-18 | 江苏奥新科技有限公司 | Double-wing infrared heating device for asphalt pavement |
| CN112954877A (en) * | 2021-01-29 | 2021-06-11 | 黄正曦 | Device and method for generating electromagnetic energy by uniform linear motion charge |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6043483B2 (en) * | 1981-10-13 | 1985-09-28 | 大同コンクリ−ト工業株式会社 | Solid asphalt melting equipment |
| CN2237043Y (en) * | 1995-07-05 | 1996-10-09 | 陈达刚 | Complex heating asphalt and taking-out from bucket device with slag cleaning device |
| CN2322969Y (en) * | 1997-07-08 | 1999-06-09 | 薛自力 | Direct combustion fast asphalt heating device |
| CN201031217Y (en) * | 2007-04-20 | 2008-03-05 | 成都市新筑路桥机械股份有限公司 | Asphaltum quick-speed elevated temperature device |
| CN101527978A (en) * | 2008-03-05 | 2009-09-09 | 孔喜 | Electrothermal film part and product thereof |
| CN201898635U (en) * | 2010-12-02 | 2011-07-13 | 天津海泰环保科技发展有限公司 | Electromagnetic wave heater for heating asphalt |
-
2010
- 2010-12-02 CN CN2010105706249A patent/CN102002247B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6043483B2 (en) * | 1981-10-13 | 1985-09-28 | 大同コンクリ−ト工業株式会社 | Solid asphalt melting equipment |
| CN2237043Y (en) * | 1995-07-05 | 1996-10-09 | 陈达刚 | Complex heating asphalt and taking-out from bucket device with slag cleaning device |
| CN2322969Y (en) * | 1997-07-08 | 1999-06-09 | 薛自力 | Direct combustion fast asphalt heating device |
| CN201031217Y (en) * | 2007-04-20 | 2008-03-05 | 成都市新筑路桥机械股份有限公司 | Asphaltum quick-speed elevated temperature device |
| CN101527978A (en) * | 2008-03-05 | 2009-09-09 | 孔喜 | Electrothermal film part and product thereof |
| CN201898635U (en) * | 2010-12-02 | 2011-07-13 | 天津海泰环保科技发展有限公司 | Electromagnetic wave heater for heating asphalt |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424726A (en) * | 2011-12-13 | 2012-04-25 | 天津海泰环保科技发展有限公司 | High-efficiency electromagnetic wave asphalt heater |
| CN103866676A (en) * | 2014-03-18 | 2014-06-18 | 江苏奥新科技有限公司 | Double-wing infrared heating device for asphalt pavement |
| CN112954877A (en) * | 2021-01-29 | 2021-06-11 | 黄正曦 | Device and method for generating electromagnetic energy by uniform linear motion charge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102002247B (en) | 2012-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204901909U (en) | Indoor phase -change thermal heating system | |
| CN102002247B (en) | Electromagnetic wave heater for asphalt heating | |
| CN104121591B (en) | A kind of efficient energy-saving incinerator | |
| CN102353254B (en) | Microwave and electricity hybrid heating high temperature push plate kiln | |
| CN202041074U (en) | Waste heat utilization device of kiln tube body of rotary kiln | |
| CN201467905U (en) | Tea water-removing and dying combined machine | |
| CN107877874A (en) | A kind of heat radiating type ceramic honeycomb panel heat welded device | |
| CN101566386A (en) | Porous-medium gas hot water heater | |
| CN201898635U (en) | Electromagnetic wave heater for heating asphalt | |
| CN208222538U (en) | A kind of catalytic combustion burner of finned tube heat exchange mode | |
| CN201897317U (en) | Electromagnetic wave conduction oil heater | |
| CN105778977A (en) | Ethylene cracking furnace | |
| CN102424726B (en) | High-efficiency electromagnetic wave asphalt heater | |
| CN105004051A (en) | Electromagnetic heating furnace | |
| CN201508036U (en) | Direct-combustion tube-typed split organic heat carrier boiler | |
| CN204301565U (en) | crude oil heating heat exchanger | |
| CN201066197Y (en) | Heat-guiding oil heating oven with tail part heating device | |
| CN102012101B (en) | Electromagnetic wave conduction oil heater | |
| CN203501429U (en) | Water heater with water-cooling heat exchange function | |
| CN207299482U (en) | Gas heater | |
| CN201933039U (en) | Rubber powder modified-asphalt electromagnetic-wave heater and safety system | |
| CN201166515Y (en) | Ceramic roller way kiln energy-saving system | |
| CN202346941U (en) | High energy efficiency electromagnetic wave asphalt heater | |
| CN203518238U (en) | Vehicle-mounted horizontal fuel oil and fuel gas molten salt furnace | |
| CN208222536U (en) | A kind of heated by natural gas and electric heating double mode catalytic combustion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Science and Technology Finance Building 5 No. 300384 in Tianjin Binhai Huayuan Industrial Park Mei Yuan Lu 12 Patentee after: TIANJIN HAITAI ENVIRONMENTAL PROTECTION TECHNOLOGY DEVELOPMENT CO.,LTD. Address before: 300270 Tianjin City, Grand Port Dagang Petrochemical Industrial Park of Tianjin hi tech Environmental Technology Development Co. Ltd. Patentee before: TIANJIN HI-TECH ENVIRONMENT SCIENCE & TECHNOLOGY DEVELOPMENT CO.,LTD. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Electromagnetic wave heater for asphalt heating Effective date of registration: 20160615 Granted publication date: 20120523 Pledgee: The Bank of Tianjin branch of Limited by Share Ltd. Reid Pledgor: TIANJIN HAITAI ENVIRONMENTAL PROTECTION TECHNOLOGY DEVELOPMENT CO.,LTD. Registration number: 2016990000508 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170904 Granted publication date: 20120523 Pledgee: The Bank of Tianjin branch of Limited by Share Ltd. Reid Pledgor: TIANJIN HAITAI ENVIRONMENTAL PROTECTION TECHNOLOGY DEVELOPMENT CO.,LTD. Registration number: 2016990000508 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230824 Granted publication date: 20120523 |
|
| PP01 | Preservation of patent right |