CN101871732B - Dry method single-pressure recovery generating system of waste heat for cement production line - Google Patents
Dry method single-pressure recovery generating system of waste heat for cement production line Download PDFInfo
- Publication number
- CN101871732B CN101871732B CN201010213808XA CN201010213808A CN101871732B CN 101871732 B CN101871732 B CN 101871732B CN 201010213808X A CN201010213808X A CN 201010213808XA CN 201010213808 A CN201010213808 A CN 201010213808A CN 101871732 B CN101871732 B CN 101871732B
- Authority
- CN
- China
- Prior art keywords
- steam
- boiler
- high temperature
- waste heat
- outlet
- 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.)
- Expired - Fee Related
Links
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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a single-pressure recovery generating system of waste heat of a dry method cement production line, being capable of improving generating efficiency. The kiln head grate cooler of the single-pressure recovery generating system is provided with at least two gas picking-up openings including a high-temperature gas picking-up opening and a moderate-temperature gas picking-up opening. A high-temperature superheater is arranged in the system; the high-temperature gas picking-up is connected to the gas inlet of the high-temperature superheater; the moderate-temperature gas picking-up opening is connected to the gas inlet of an AQC (Air Quench Cooler) boiler; the steam outlet of the AQC boiler and the steam outlet of a kiln tail SP (Suspend Preheater) boiler are connected to the steam outlet of the high-temperature superheater; the steam outlet of the high-temperature superheater is connected to a steam turbine, which makes the primary superheat steam of the kiln tail SP boiler and the AQC boiler obtain reliable secondary superheating in the high-temperature superheater; moderate-temperature flue gas and the heat-exchanged flue gas of the high-temperature superheater are taken as the heat source of the AQC boiler to realize the stepwise recovery of the energy of the flue gas of the waste heat of the grate cooler, increase steam enthalpy and improve effective enthalpy drop; the steam quality is improved and the flow is reduced, which reduce the exhaust loss of the waste heat in a condenser of the steam turbine and promote the improvement of waste heat generating efficiency.
Description
Technical field
The present invention relates to a kind of waste heat recovery generating system, on especially a kind of dry cement production line, the waste heat recovery generating system that reclaims kiln hood cooling machine and kiln tail C1 outlet waste heat and be used to generate electricity.
Background technology
At present; It is such that cement produced with the dry method is produced waste heat recovery generating system, on kiln hood cooling machine, offers air hatch, and the flue gas that is come out to have waste heat by air hatch gets into AQC boiler recovery waste heat; The flue gas that is come out to have waste heat by kiln tail C1 gets into kiln tail SP boiler recovery waste heat; Two strands of once overheated respectively steam converge and get into steam turbine power generation, and steam turbine is connected with condenser in addition, the water of condenser generation through condensate pump and deaerating plant after feed pump pumps into AQC boiler and kiln tail SP boiler; Waste gas after the heat exchange of AQC boiler gets into dust collecting system, and the waste gas after the heat exchange of kiln tail SP boiler gets into the raw material system.
There is following drawback in existing waste heat recovery generating system: AQC boiler and kiln tail SP boiler are once overheated respectively, and about 330 ℃ of vapor (steam) temperatures are on the low side; Steam pressure is about 2.0～2.5MPa; Higher, generating efficiency is lower, is unfavorable for the raising of exhaust heat recovery power generation efficient; The part of waste heat that gets into the AQC boiler can only be through 170 ℃; 0.2MPa low-pressure steam mend into steam turbine power generation; Low pressure filling generating has reduced effective enthalpy drop of afterheat steam; Increased the turbine discharge loss, be unfavorable for the raising of waste heat recovery efficient, steam pressure improves the investment of waste heat system simultaneously increases.
Summary of the invention
Produce the low deficiency of waste heat recovery generating system generating efficiency in order to overcome existing cement produced with the dry method, technical problem to be solved by this invention provides a kind of single-pressure recovery generating system of waste heat that can improve the dry cement production line of generating efficiency.
The technical solution adopted for the present invention to solve the technical problems is: the single-pressure recovery generating system of waste heat of dry cement production line; The air hatch of kiln hood cooling machine is connected with the air inlet of AQC boiler, and the steam (vapor) outlet of AQC boiler is connected to steam turbine, and the air hatch of kiln tail C1 is connected with the air inlet of kiln tail SP boiler; The steam (vapor) outlet of kiln tail SP boiler is connected with steam turbine; At least two air hatch are set on the kiln hood cooling machine, comprise the high temperature air hatch and in warm air hatch, high temperature superheater is set in the system; The high temperature air hatch is connected to the air inlet of high temperature superheater; In warm air hatch be connected to the air inlet of AQC boiler, the steam (vapor) outlet of the steam (vapor) outlet of AQC boiler and kiln tail SP boiler is connected to the steam inlet of high temperature superheater, the steam (vapor) outlet of high temperature superheater is connected to steam turbine; The steam pressure of the steam (vapor) outlet (44) of said high temperature superheater (4) is 0.8～1.3MPa, and vapor (steam) temperature is 350～410 ℃.
Said kiln hood cooling machine is provided with three air hatch, be respectively high temperature air hatch, inferior high temperature air hatch and in warm air hatch, high temperature air hatch, inferior high temperature air hatch are connected respectively to the air inlet that is connected to high temperature superheater behind the mixing duct.
The gas outlet of said high temperature superheater is connected to the air inlet of AQC boiler.
The invention has the beneficial effects as follows: combine cooling built-in temperature characteristic distributions, the cooling machine adopts at least two air hatch, and the independent high temperature superheater of arranging; High-temperature flue-gas is reliable and stable, gets and makes the high temperature superheater thermal source, and the once overheated steam that makes kiln tail SP boiler and AQC boiler obtains reliable secondary in high temperature superheater overheated; In flue gas after warm flue gas and the high temperature superheater heat exchange get and make the AQC boiler heat source, realize that the waste heat gas energy step of cooling machine reclaims, the vapor (steam) temperature after secondary is overheated is brought up to about 350～410 ℃; Send into steam turbine generator, improve steam enthalpy, improve effective enthalpy drop; Steam quality improves; Flow reduces, and has reduced the steam discharge loss of waste heat at turbine condenser, has promoted the raising of residual heat generating efficiency.
Description of drawings
Fig. 1 is the system diagram (the cooling machine has the situation of an air hatch) of existing afterheat generating system.
Fig. 2 is the system diagram (the cooling machine has the situation of two air hatch) of existing afterheat generating system.
Fig. 3 is the system diagram (the cooling machine has the situation of two air hatch) of afterheat generating system of the present invention.
Fig. 4 is the system diagram (the cooling machine has the situation of three air hatch) of afterheat generating system of the present invention.
Among each figure arrow labeled the moving direction of gas/flow.
Be labeled as 1-kiln hood cooling machine, 2-AQC boiler, 3-kiln tail SP boiler, 4-high temperature superheater, 5-steam turbine among the figure; The 6-mixing duct, 7-rotary kiln, 11-high temperature air hatch, warm air hatch among the 12-, 13-high temperature air hatch, 21-air inlet; The 22-gas outlet, 23-admission port, 24-steam (vapor) outlet, 31-air inlet, 32-gas outlet, 33-admission port; The 34-steam (vapor) outlet, 41-air inlet, 42-gas outlet, 43-steam inlet, 44-steam (vapor) outlet, 51-condenser; The 52-condensate pump, 53-deaerating plant, 54-feed pump, 55-cooling tower, 56-water circulating pump, 57-generator.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
As depicted in figs. 1 and 2, the single-pressure recovery generating system of waste heat of existing dry cement production line, the steam that gets into steam turbine 5 be respectively through a superheated steam of AQC boiler 2 and kiln tail SP boiler 3, and all the other heat recovery efficiencies are lower.
Like Fig. 3 and shown in Figure 4; The single-pressure recovery generating system of waste heat of dry cement production line of the present invention; The air hatch of kiln hood cooling machine 1 is connected with the air inlet 21 of AQC boiler 2, and the steam (vapor) outlet 24 of AQC boiler 2 is connected to steam turbine 5, and the air hatch of kiln tail C1 is connected with the air inlet 31 of kiln tail SP boiler 3; The steam (vapor) outlet 34 of kiln tail SP boiler 3 is connected with steam turbine 5; At least two air hatch are set on the kiln hood cooling machine 1, comprise high temperature air hatch 11 and in warm air hatch 12, high temperature superheater 4 is set in the system; High temperature air hatch 11 is connected to the air inlet 41 of high temperature superheater 4; In the gas outlet 42 of warm air hatch 12 and high temperature superheater 4 be connected to the air inlet 21 of AQC boiler 2, the steam (vapor) outlet 34 of the steam (vapor) outlet 24 of AQC boiler 2 and kiln tail SP boiler 3 is connected to the steam inlet 43 of high temperature superheater 4, the steam (vapor) outlet 44 of high temperature superheater 4 is connected to steam turbine 5.
In the above-mentioned technical scheme; Offer plural air hatch according to closing kiln hood cooling machine 1 interior Temperature Distribution situation; The flue gas of different temperatures is introduced different waste-heat recovery devices to be utilized: for example offer corresponding high temperature air hatch 11 and middle temperature air hatch 12 in its high temperature section and middle-temperature section respectively, the middle temperature flue gas introducing AQC boiler that is come out by middle temperature air hatch 12 is used to produce superheated steam one time, introduces the high temperature superheater 4 that is provided with separately by the high-temperature flue gas that high temperature air hatch 11 comes out; It is overheated that a superheated steam that is come out by kiln tail SP boiler and AQC boiler is carried out secondary; Improve steam enthalpy, improve effective enthalpy drop, improved the steam quality that gets into steam turbine 5; The vapor (steam) temperature that gets into steam turbine 5 can reach 350～410 ℃, helps the raising of exhaust heat recovery power generation efficient.
As shown in Figure 4; Said kiln hood cooling machine 1 is provided with three air hatch; Be respectively high temperature air hatch 11, inferior high temperature air hatch 13 and in warm air hatch 12; High temperature air hatch 11, inferior high temperature air hatch 13 are connected respectively to the air inlet 41 that is connected to high temperature superheater 4 behind the mixing duct 6, more help cooling machine air distribution, improve the overheated vapor (steam) temperature of secondary reliably, effectively.
For further recovery waste heat, also can the gas outlet 42 of said high temperature superheater 4 be connected to the air inlet 21 of AQC boiler 2, be used in the AQC boiler, producing a superheated steam, the waste heat gas energy is carried out step reclaim.
Having under the overheated situation of secondary; The vapour pressure Etech of the steam (vapor) outlet 44 of said high temperature superheater 4 is controlled to be 0.8～1.3MPa; Vapor (steam) temperature should be controlled to be 350～410 ℃; This moment, the thermal efficiency of electricity generation system was higher, and it is the design object parameter that corresponding boiler and therrmodynamic system design are recommended with the aforementioned parameters.
Embodiment one:
As shown in Figure 3; The single-pressure recovery generating system of waste heat of dry cement production line of the present invention; Flue gas from kiln tail C1 goes to the raw material system after air inlet 31 gets into 3 heat exchange of kiln tail SP boiler; Kiln hood cooling machine 1 is provided with two air hatch; Be respectively high temperature air hatch 11 and in warm air hatch 12, high temperature superheater 4 is set in the system, get into high temperature superheaters 4 from the flue gas of high temperature air hatch 11 through air inlet 41; After air inlet 21 gets into 2 heat exchange of AQC boilers, remove the dirt system after the heat exchange with from the flue gas of middle temperature air hatch 12, the superheated steam secondary high temperature superheater 4 in that is come out by the steam (vapor) outlet 34 of the steam (vapor) outlet 24 of AQC boiler 2 and kiln tail SP boiler 3 is overheated after steam (vapor) outlet 44 is transported to steam turbine 5 is used for generating electricity.
Compare with existing waste heat recovery generating system, all the other heat recovery efficiencies have increased about 5%.
Embodiment two:
As shown in Figure 4; The single-pressure recovery generating system of waste heat of dry cement production line of the present invention; Flue gas from kiln tail C1 goes to the raw material system after air inlet 31 gets into 3 heat exchange of kiln tail SP boiler; Three air hatch are set on the kiln hood cooling machine 1; Be respectively high temperature air hatch 11, inferior high temperature air hatch 13 and in warm air hatch 12, high temperature superheater 4 is set in the system, mixing duct 6 in, mix after air inlet 41 entering high temperature superheaters 4 from the flue gas of high temperature air hatch 11 and time high temperature air hatch 13; After air inlet 21 gets into 2 heat exchange of AQC boilers, remove the dirt system after the heat exchange with from the flue gas of middle temperature air hatch 12, the superheated steam secondary high temperature superheater 4 in that is come out by the steam (vapor) outlet 34 of the steam (vapor) outlet 24 of AQC boiler 2 and kiln tail SP boiler 3 is overheated after steam (vapor) outlet 44 is transported to steam turbine 5 is used for generating electricity.
Compare with existing waste heat recovery generating system, all the other heat recovery efficiencies have increased about 6%.
Claims (3)
1. the single-pressure recovery generating system of waste heat of dry cement production line; The air hatch of kiln hood cooling machine (1) is connected with the air inlet (21) of AQC boiler (2); The steam (vapor) outlet (24) of AQC boiler (2) is connected to steam turbine (5); The air hatch of kiln tail C1 is connected with the air inlet (31) of kiln tail SP boiler (3), and the steam (vapor) outlet (34) of kiln tail SP boiler (3) is connected with steam turbine (5), it is characterized in that: kiln hood cooling machine (1) is gone up at least two air hatch is set; Comprise high temperature air hatch (11) and in warm air hatch (12); High temperature superheater (4) is set in the system, and high temperature air hatch (11) is connected to the air inlet (41) of high temperature superheater (4), and middle temperature air hatch (12) is connected to the air inlet (21) of AQC boiler (2); The steam (vapor) outlet (24) of AQC boiler (2) and the steam (vapor) outlet (34) of kiln tail SP boiler (3) are connected to the steam inlet (43) of high temperature superheater (4); The steam (vapor) outlet (44) of high temperature superheater (4) is connected to steam turbine (5), and the steam pressure of the steam (vapor) outlet (44) of said high temperature superheater (4) is 0.8MPa, and vapor (steam) temperature is 350～410 ℃.
2. the single-pressure recovery generating system of waste heat of dry cement production line as claimed in claim 1; It is characterized in that: said kiln hood cooling machine (1) is provided with three air hatch; Be respectively high temperature air hatch (11), inferior high temperature air hatch (13) and in warm air hatch (12), high temperature air hatch (11), inferior high temperature air hatch (13) are connected respectively to the air inlet (41) that is connected to high temperature superheater (4) behind the mixing duct (6).
3. according to claim 1 or claim 2 the single-pressure recovery generating system of waste heat of dry cement production line, it is characterized in that: the gas outlet (42) of said high temperature superheater (4) is connected to the air inlet (21) of AQC boiler (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010213808XA CN101871732B (en) | 2010-06-30 | 2010-06-30 | Dry method single-pressure recovery generating system of waste heat for cement production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010213808XA CN101871732B (en) | 2010-06-30 | 2010-06-30 | Dry method single-pressure recovery generating system of waste heat for cement production line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101871732A CN101871732A (en) | 2010-10-27 |
| CN101871732B true CN101871732B (en) | 2012-02-01 |
Family
ID=42996740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010213808XA Expired - Fee Related CN101871732B (en) | 2010-06-30 | 2010-06-30 | Dry method single-pressure recovery generating system of waste heat for cement production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101871732B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305558A (en) * | 2011-08-11 | 2012-01-04 | 福建大源节能环保科技有限公司 | Energy-saving system and method of steam turbine condenser adopting vacuum self-sucking mode to substitute for water replenishing pump |
| CN102506588B (en) * | 2011-10-10 | 2013-10-09 | 西安陕鼓工程技术有限公司 | Cement kiln waste heat comprehensive utilization power generation system and method |
| CN103256822B (en) * | 2013-05-27 | 2014-09-17 | 四川川润动力设备有限公司 | Cement kiln waste heat power generation system with adjustable kiln tail exhaust gas temperature and control method |
| CN103307893B (en) * | 2013-06-21 | 2015-09-16 | 成都建筑材料工业设计研究院有限公司 | A kind of waste heat recovery system of grate cooler |
| CN106766963B (en) * | 2017-01-12 | 2018-08-10 | 中国科学院力学研究所 | A kind of cement clinker production line grate-cooler afterheat utilizing system |
| CN111747667B (en) * | 2019-03-29 | 2023-05-16 | 川崎重工业株式会社 | Waste heat recovery system |
| CN111271980A (en) * | 2020-03-17 | 2020-06-12 | 天瑞新登郑州水泥有限公司 | Cement kiln waste heat power generation system |
| CN113237353A (en) * | 2021-06-10 | 2021-08-10 | 安徽海螺川崎节能设备制造有限公司 | Dust fall heating system of cement kiln exhaust-heat boiler |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2564448B2 (en) * | 1992-06-05 | 1996-12-18 | 川崎重工業株式会社 | Cement waste heat recovery power generation facility combined with gas turbine |
| CN100338424C (en) * | 2004-09-30 | 2007-09-19 | 中信重型机械公司 | Generating set system of simple low temperature waste heat from large size cement manufacture line in dry method, and technical process |
| CN201059880Y (en) * | 2007-07-13 | 2008-05-14 | 南京凯盛开能环保能源有限公司 | Pure middle-low-temperature waste heat power generation system of cement kiln |
| CN201059879Y (en) * | 2007-07-13 | 2008-05-14 | 南京凯盛开能环保能源有限公司 | Pure middle-low-temperature waste heat power generation system of cement kiln |
| CN201302382Y (en) * | 2008-11-11 | 2009-09-02 | 唐金泉 | Residual heat in waste gas power generation system of kiln head of cement kiln cooling machine for configurating steam superheater |
| CN201706902U (en) * | 2010-06-30 | 2011-01-12 | 成都四通新能源技术有限公司 | Waste heat single-pressure recovery power generating system of dry method cement production line |
-
2010
- 2010-06-30 CN CN201010213808XA patent/CN101871732B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101871732A (en) | 2010-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101871732B (en) | Dry method single-pressure recovery generating system of waste heat for cement production line | |
| CN201059880Y (en) | Pure middle-low-temperature waste heat power generation system of cement kiln | |
| WO2017219656A1 (en) | Gas turbine and pressurized water reactor steam turbine combined circulation system | |
| CN201359444Y (en) | Power generation system utilizing sintered waste heat | |
| CN104180675B (en) | Heating furnace residual heat integrative utilizes electricity generation system | |
| CN101793467A (en) | Pure medium-low temperature waste heat generating system in cement kiln | |
| CN103344124A (en) | Lime kiln waste gas waste heat electricity generating system with by-product coal gas afterburning function | |
| CN103353239A (en) | Improved lime kiln exhaust gas waste heat power generation system and power generation method thereof | |
| CN104895631A (en) | Air-steam combined circulating device and air turbine circulating device | |
| CN101949651B (en) | Afterheat double-voltage recovery and generation system of dry cement production line | |
| CN106152093A (en) | The fuel-fired steam power cycle heat power generating system of full backheat and technique thereof | |
| CN102865746A (en) | Improved waste heat power generation system for cement industry | |
| CN205156647U (en) | Power generation system is jointly retrieved to improved generation sintering waste heat | |
| CN203443377U (en) | Improved lime kiln waste gas residual heat power generation system | |
| CN201059879Y (en) | Pure middle-low-temperature waste heat power generation system of cement kiln | |
| CN201706902U (en) | Waste heat single-pressure recovery power generating system of dry method cement production line | |
| CN105387729A (en) | Material cooling waste heat power generation system | |
| CN201858899U (en) | Improved power generation system for cement industry | |
| CN201852073U (en) | Two-stage flash evaporator for improving utilization efficiency of waste gas in cement waste heat power generation | |
| CN201666737U (en) | Pure low-temperature afterheat generator of sinter cooler | |
| CN201819572U (en) | Post-positioned power generation system of SP double-pressure vertical type boiler | |
| CN204064000U (en) | Heating furnace residual heat integrative utilizes electricity generation system | |
| CN103574571A (en) | Two-stage flash evaporator of waste heat power generation system of cement kiln | |
| CN204202412U (en) | A kind of sinter cooler bootstrap system of forward type superheater | |
| CN208650930U (en) | A kind of coal oven dithio-gas sensible heat and red burnt sensible heat combined generating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HU'NAN QIU ZEYOU PATENT STRATEGIC PLANNING CO., LT Free format text: FORMER OWNER: QIU ZEYOU Effective date: 20101102 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 410005 28/F, SHUNTIANCHENG, NO.185, FURONG MIDDLE ROAD, CHANGSHA CITY, HU'NAN PROVINCE TO: 410205 JUXING INDUSTRY BASE, NO.8, LUJING ROAD, CHANGSHA HIGH-TECH. DEVELOPMENT ZONE, YUELU DISTRICT, CHANGSHA CITY, HU'NAN PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20101109 Address after: The people of Wuhou District road Chengdu city Sichuan province 610041 four Branch Road No. 3 National 863 software incubator base in Sichuan on the third floor Applicant after: Chengdu Stone New Energy Technology Co., Ltd. Address before: Wuhou District chinatek road Chengdu 610041 Sichuan province No. 3 National 863 software incubator base in Sichuan on the third floor Applicant before: CSG Holding Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU HOT NEW ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHENGDU STONE NEW ENERGY TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: The people of Wuhou District road Chengdu city Sichuan province 610041 four Branch Road No. 3 National 863 software incubator base in Sichuan on the third floor Patentee after: Chengdu Hot New Energy Technology Co., Ltd. Address before: The people of Wuhou District road Chengdu city Sichuan province 610041 four Branch Road No. 3 National 863 software incubator base in Sichuan on the third floor Patentee before: Chengdu Stone New Energy Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: The people of Wuhou District road Chengdu city Sichuan province 610041 four Branch Road No. 3 Patentee after: Chengdu Hot New Energy Technology Co., Ltd. Address before: The people of Wuhou District road Chengdu city Sichuan province 610041 four Branch Road No. 3 National 863 software incubator base in Sichuan on the third floor Patentee before: Chengdu Hot New Energy Technology Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Single-pressure recovery generating system of waste heat of dry method cement production line Effective date of registration: 20140208 Granted publication date: 20120201 Pledgee: The Agricultural Bank of Chengdu branch of Limited by Share Ltd Chinese Sichuan Pledgor: Chengdu Hot New Energy Technology Co., Ltd. Registration number: 2014510000003 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20170630 |