CN101881191B - Thermal power generation system based on high-moisture lignite pre-drying upgrading and recovering technology - Google Patents
Thermal power generation system based on high-moisture lignite pre-drying upgrading and recovering technology Download PDFInfo
- Publication number
- CN101881191B CN101881191B CN201010183848A CN201010183848A CN101881191B CN 101881191 B CN101881191 B CN 101881191B CN 201010183848 A CN201010183848 A CN 201010183848A CN 201010183848 A CN201010183848 A CN 201010183848A CN 101881191 B CN101881191 B CN 101881191B
- Authority
- CN
- China
- Prior art keywords
- coal
- water
- power generation
- drying device
- heat energy
- 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
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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to a thermal power generation system based on a high-moisture lignite pre-drying upgrading and recovering technology. The thermal power generation system comprises a boiler, a turbine, a condenser, a condensation pump, a low pressure heater, a deaerator, a water feed pump, a high pressure heater, a wet coal bin, a wet coal feeder and a coal mill and is characterized in that a lignite pre-drying device, a drain pump, a dry coal feeder, a dust remover and a heat energy and waste water recovering device are additionally arranged in the power generation system. The invention improves the energy density of fire coal and accordingly increases the efficiency of the boiler, and is capable of reducing the investment of the boiler and a milling system by a larger extent, simultaneously reducing the plant power utilization ratio, further improving the energy source comprehensive utilization efficiency of a thermal power generation plant, recovering a great deal water by using coal to produce water and saving precious water resources. The invention achieves the effects of high efficiency, energy saving, water saving and emission reduction and accords with the industrial policy of developing the low-carbon economy in China.
Description
Technical field
The invention belongs to coal-fired thermal power generation field, relate to the improvement of boiler milling system and Steam Turbine Regenerative System.
Background technique
The explored lignite resource reserves of China reach more than 1,300 hundred million tons, account for 13% of national coal reserves.Brown coal are minimus coals in the raw coal, and fugitive constituent is generally 40%～50%, and total moisture generally can reach 20%～50%, and air-dried moisture is 10%～20%, and low heat valve generally has only 7～15MJ/kg.Because brown coal moisture is high, calorific value is low, easy-weathering and spontaneous combustion, be difficult to washing and storage; Cause the cost of transportation of unit energy higher; Long distances is less economical; Make the exploitation and the utilization of brown coal be very limited, generally be used as a kind of low grade fuel, near the brown coal place of production with its combustion power generation.
At present, burning high-moisture brown coal power plant is identical with the boiler milling system that uses other fat coal power plant, and is coal-fired through conveying, broken, dry, the entering burner hearth of milling, to reach the requirement of satisfying boiler burning.Because the moisture of brown coal own is higher, the boiler exhaust gas loss is bigger with the Reduced or Low Moisture coal facies, and the thermal efficiency that boiler directly burns is lower, and Economy is limited, and the discharge amount of greenhouse gases is also bigger.In addition, high-moisture brown coal calorific value is lower, makes boiler body bulky, involves great expense; The boiler accessory machinery capacity is bigger than normal, and station service power consumption rate is higher.
Summary of the invention
To the problems referred to above; The present invention improves burning high-moisture brown coal thermal power generation system; Its technological scheme is in thermal power generation system, to set up the coal-fired pre-drying device of superheated vapor and dried tail gas heat energy and waste water recovering device; The thermal power plant system that forms New-type boiler pulverizing system and Steam Turbine Regenerative System; Concrete structure is following: a kind of thermal power generation system based on predrying upgrading of high-moisture brown coal and recovery technology; Comprise boiler, steam turbine, vapour condenser, condensate pump, low-pressure heater, oxygen-eliminating device, feed water pump, high-pressure heater, wet coal bunker, wet coal coal-feeding conveyer, coal pulverizer, drainage pump, deduster, it is characterized in that in power generation system, setting up brown coal pre-drying device, dry coal coal-feeding conveyer, heat energy and waste water recovering device, the steam turbine low-pressure extraction opening is connected to the pre-drying device steam inlet; Pre-drying device water of condensation interface is connected to drainage pump, and drainage pump is connected to oxygen-eliminating device; Wet coal coal-feeding conveyer is connected to pre-drying device coal inlet, and the pre-drying device coal export is connected to the dry coal coal-feeding conveyer, and the outlet of dry coal coal-feeding conveyer is connected to coal pulverizer; The pre-drying device steam (vapor) outlet is connected to deduster, and the coal export of deduster is connected to the dry coal coal-feeding conveyer; The steam outlet of deduster is connected to heat energy and waste water recovering device, and heat energy and waste water recovering device drain opening are connected to the power plant effluent processing system; The condensate pump outlet is connected to heat energy and waste water recovering device, and heat energy and the outlet of waste water recovering device water of condensation are connected to condensing water conduit.
Working procedure of the present invention is following:
The high-moisture brown coal of storing in the wet coal bunker get into pre-drying device by wet coal coal-feeding conveyer from top; Heat the most of evaporation of former moisture content of coal through extracted steam from turbine; Dry coal is discharged from the pre-drying device bottom and is got into the dry coal coal-feeding conveyer, and the entering coal pulverizer is milled and continued and is delivered to the boiler furnace burning behind the heat drying.The water vapor of pre-drying device evaporation and the mixture of coal dust get into the deduster purifying and dedusting, and the coal dust that separates enters the dry coal coal-feeding conveyer, get into the boiler furnace burning behind the entering coal pulverizer.Water vapor after the purification gets into heat energy and waste water recovering device condensation heat, enters the power plant effluent processing system behind the formation supercooled water, and incondensable gas enters atmosphere.
The invention has the beneficial effects as follows:
1, integrated drying system in original pulverizing system, the high-moisture brown coal preheat drying through dryer, and former moisture content of coal can reduce more than 50%; The energy density of coal improves more than 40%; The fire coal that gets into the burner hearth burning reduces the heat energy that the surplus water branch consumes in the evaporation coal through preheating moisture minimizing simultaneously, and the flue gas loss of boiler is able to reduce; Efficiency of boiler can improve 1.5～2.5%, reaches bituminous coal type boiler level.
2, coal-fired low heat valve increases substantially behind the brown coal drying, reaches the bituminous coal level, and the boiler furnace volume reduces, and highly reduces, and investment reduces; Moisture reduces, and the energy density of coal improves, and the pulverizing system drying is exerted oneself and is able to guarantee that pulverizing system can be selected the medium-speed pulverizer pulverizing system, and investment reduces; The pulverizing system plant capacity reduces, and station service power consumption rate reduces more than 0.5%.
3, the steam turbine low-pressure heat drying fire coal that draws gas; The hydrophobic entering oxygen-eliminating device of heating steam; Dryer and heat energy and waste water recovering device are formed special water of condensation heater, and the evaporation steam discharge heat-setting water of coal forms the heat cycles of drawing gas; Be an integrated new system with coal-fired drying and feedwater heating function in original thermodynamic system of steam tur, extracted steam from turbine heat energy is fully used.Coal-fired drying has increased power plant's backheat circulation steam flow that draws gas, and is implemented in and reduces turbine discharge the generated energy permanence condition under, reduces cold junction and loses 5%, has improved the plant thermal efficiency of power plant.
4, the large quantity of moisture that evaporates in the coal obtains reclaiming, and 600MW unit year can reach 500,000 tons with coal system water, reduces the thermal power plant water consumption effectively.
5,, adopt the present invention can reduce generating standard coal consumption 8 ~ 12g/KWh, SO with the contrast of capacity unit
2, flue dust, NO
X, CO
2Annual emissions reduces 7.5%, 7.5%, 10%, 4% respectively.
In sum, the present invention has improved coal-fired energy density, and the efficient of boiler improves thereupon, can reduce the investment of boiler and pulverizing system greatly; Reduced station service power consumption rate simultaneously, and then improved thermal power plant comprehensive utilization of energy efficient, with the recyclable big water gaging of coal system water, saves valuable water resources.That the present invention reaches is efficient, energy-conservation, water saving, the effect that reduces discharging, meets the industrial policy of present national development low-carbon economy.
Description of drawings
Accompanying drawing connects schematic representation for system of the present invention.
Legend:
1, boiler; 2, steam turbine; 3, vapour condenser; 4, condensate pump; 5, low-pressure heater; 6, oxygen-eliminating device; 7, feed water pump; 8, high-pressure heater; 9, wet coal bunker; 10, wet coal coal-feeding conveyer; 11, pre-drying device; 12, dry coal coal-feeding conveyer; 13, coal pulverizer; 14, drainage pump; 15, deduster; 16, heat energy and waste water recovering device
Embodiment
Below in conjunction with accompanying drawing technological scheme of the present invention is further described:
Boiler (1) steam (vapor) outlet through main steam line be connected with steam turbine (2), turbine discharge is connected with vapour condenser (3), condenser condensed water outlet low pressure feed water pipeline connects condensate pump (4) successively, low-pressure heater (5) to oxygen-eliminating device (6), deaerator feedwater outlet high-pressure feed water pipeline connect feed water pump (7), high-pressure heater (8) to boiler (1) feed-water intake successively, forms conventional thermal power generation circulation system; The steam turbine low-pressure extraction opening is connected to the pre-drying device steam inlet, and pre-drying device water of condensation interface is connected to drainage pump, and drainage pump is connected to oxygen-eliminating device; Wet coal coal-feeding conveyer is connected to pre-drying device coal inlet, and the pre-drying device coal export is connected to the dry coal coal-feeding conveyer, and the outlet of dry coal coal-feeding conveyer is connected to coal pulverizer; The pre-drying device steam (vapor) outlet is connected to deduster, and the coal export of deduster is connected to the dry coal coal-feeding conveyer; The steam outlet of deduster is connected to heat energy and waste water recovering device; Heat energy and waste water recovering device drain opening are connected to the power plant effluent processing system; The condensate pump outlet is connected to heat energy and waste water recovering device, and heat energy and the outlet of waste water recovering device water of condensation are connected to condensing water conduit.
The present embodiment working principle is following:
The low-pressure superheated steam that the steam turbine low-pressure extraction opening is extracted out is connected to pre-drying device (11) through pump-line; Low-pressure superheated steam discharges the sensible heat and the latent heat of condensation to condensing into behind the hydrogenous coal in the pre-drying device with the saturation water under the equal pressure by the indirect heat exchange mode in pre-drying device; Saturation water is connected to oxygen-eliminating device after boosting through drainage pump (14); Get into the steam turbine water supply system, accomplish the circulation of drawing gas.
The high-moisture brown coal of storage get into pre-drying device by wet coal coal-feeding conveyer (10) in the wet coal bunker (9) from top; Heat through extracted steam from turbine; The most of evaporation of moisture content of coal; Dry coal after the dry heat is discharged from the pre-drying device bottom and is got into dry coal coal-feeding conveyer (12), and entering coal pulverizer (13) is milled and continued and is delivered to the boiler furnace burning behind the heat drying.
The water vapor of pre-drying device evaporation and the mixture of coal dust get into deduster (15) purifying and dedusting, and the coal dust that separates enters the dry coal coal-feeding conveyer, get into coal pulverizer (13) back and get into the burning of boiler (1) burner hearth;
Water vapor after deduster (15) purifies gets into heat energy and waste water recovering device (16) condensation heat, enters the power plant effluent processing system behind the formation supercooled water, and incondensable gas enters atmosphere.
The condensate pump outlet is drawn one road low-temperature condensate and is connected to heat energy and waste water recovering device; Heat energy and waste water recovering device water out are connected to condensing water conduit; Low-temperature condensate gets into condensate system again at the heat of heat energy and waste water recovering device absorption water vapor after the intensification.
The described pre-drying device of present embodiment can be a steam tubular type rotary dryer, also can be superheated vapor fluidisation bed dryer.
Claims (1)
1. based on the thermal power generation system of predrying upgrading of high-moisture brown coal and recovery technology; Comprise boiler, steam turbine, vapour condenser, condensate pump, low-pressure heater, oxygen-eliminating device, feed water pump, high-pressure heater, wet coal bunker, wet coal coal-feeding conveyer, coal pulverizer, drainage pump, deduster; It is characterized in that in power generation system, setting up brown coal pre-drying device, dry coal coal-feeding conveyer, heat energy and waste water recovering device; The steam turbine low-pressure extraction opening is connected to the pre-drying device steam inlet; Pre-drying device water of condensation interface is connected to drainage pump, and drainage pump is connected to oxygen-eliminating device; Wet coal coal-feeding conveyer is connected to pre-drying device coal inlet, and the pre-drying device coal export is connected to the dry coal coal-feeding conveyer, and the outlet of dry coal coal-feeding conveyer is connected to coal pulverizer; The pre-drying device steam (vapor) outlet is connected to deduster, and the coal export of deduster is connected to the dry coal coal-feeding conveyer; The steam outlet of deduster is connected to heat energy and waste water recovering device, and heat energy and waste water recovering device drain opening are connected to the power plant effluent processing system; The condensate pump outlet is connected to heat energy and waste water recovering device, and heat energy and the outlet of waste water recovering device water of condensation are connected to condensing water conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010183848A CN101881191B (en) | 2010-05-27 | 2010-05-27 | Thermal power generation system based on high-moisture lignite pre-drying upgrading and recovering technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010183848A CN101881191B (en) | 2010-05-27 | 2010-05-27 | Thermal power generation system based on high-moisture lignite pre-drying upgrading and recovering technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101881191A CN101881191A (en) | 2010-11-10 |
| CN101881191B true CN101881191B (en) | 2012-10-17 |
Family
ID=43053307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010183848A Active CN101881191B (en) | 2010-05-27 | 2010-05-27 | Thermal power generation system based on high-moisture lignite pre-drying upgrading and recovering technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101881191B (en) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155744B (en) * | 2010-12-22 | 2012-11-14 | 上海锅炉厂有限公司 | System for pre-drying coal with high water content by utilizing residual heat of boiler gas |
| CN102095192A (en) * | 2011-02-12 | 2011-06-15 | 施大钟 | Lignite combustion boiler of power plant |
| CN102759118A (en) * | 2011-04-29 | 2012-10-31 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Lignite drum smoke pre-drying power generation integrated system and process |
| CN102889609B (en) * | 2011-07-20 | 2016-03-16 | 上海援梦电力能源科技咨询中心 | Smoke drying steel ball brown-coal milling system |
| CN102353237B (en) * | 2011-08-18 | 2013-12-11 | 西安交通大学 | High-moisture-content lignite predrying method and system integrated with thermal power plant |
| CN102944024A (en) * | 2012-11-09 | 2013-02-27 | 中国神华能源股份有限公司 | Lignite thermal power generation system |
| CN103060038A (en) * | 2012-12-25 | 2013-04-24 | 中国五环工程有限公司 | Process and system for preparing dry coal dust with high-moisture low-order raw coal |
| CN103673534B (en) * | 2013-12-06 | 2016-07-13 | 大唐国际发电股份有限公司内蒙古分公司 | Utilize residual heat of electric power plant drying brown coal water lift recovery system |
| CN103807868B (en) * | 2014-03-12 | 2016-04-20 | 华北电力大学 | Be applicable to the internal heating fluidized bed drying system of brown coal air cooling turbo-generator |
| CN103925606B (en) * | 2014-04-04 | 2016-05-11 | 西安西热锅炉环保工程有限公司 | Gas-fired adds the high-moisture brown coal medium-speed pulverizer pulverized coal preparation system of heat primary air |
| CN103983088A (en) * | 2014-05-20 | 2014-08-13 | 西安热工研究院有限公司 | System and method for predrying lignite and recycling water by using waste heat of power station |
| CN105091546B (en) | 2014-05-20 | 2017-06-06 | 天华化工机械及自动化研究设计院有限公司 | A kind of generating set high-moisture, low heat value brown coal drying and water recovery method and its device |
| CN104179537B (en) * | 2014-08-18 | 2017-01-25 | 北京电力设备总厂有限公司 | Brown coal drying power generating system capable of recycling water in coal and implementation method of brown coal drying power generating system |
| WO2016037379A1 (en) * | 2014-09-12 | 2016-03-17 | 呼伦贝尔弘毅煤炭科技发展有限公司 | Method and apparatus for drying lignite and improving quality of lignite |
| EP3098397A1 (en) | 2015-05-26 | 2016-11-30 | Alstom Technology Ltd | Lignite drying integration with a water/steam power cycle |
| EP3098509A1 (en) | 2015-05-26 | 2016-11-30 | Alstom Technology Ltd | Lignite drying in a lignite fired power plant with a heat pump |
| EP3098549B1 (en) * | 2015-05-26 | 2018-07-11 | General Electric Technology GmbH | Lignite drying with a heat recovery circuit |
| EP3098548A1 (en) | 2015-05-26 | 2016-11-30 | Alstom Technology Ltd | Lignite drying with closed loop heat pump |
| CN104880051B (en) * | 2015-06-01 | 2017-06-13 | 南京航空航天大学 | The biomass drying system and method for latent heat and sensible heat are reclaimed simultaneously |
| CN105157398B (en) * | 2015-07-13 | 2018-05-25 | 华北电力大学 | It is a kind of suitable for the two-stage raw coal drying system of air cooling unit and raw coal drying means |
| CN105043077B (en) * | 2015-07-28 | 2017-05-17 | 南京航空航天大学 | Air drying system and working method of biomass capable of efficiently recovering waste heat |
| CN106195995A (en) * | 2016-08-04 | 2016-12-07 | 联合瑞升（北京）科技有限公司 | A kind of heating power jet pump height adds steam-supplying system |
| CN107356051B (en) * | 2017-09-01 | 2023-05-12 | 成都昊特新能源技术股份有限公司 | Drying device and multiple-effect drying system |
| CN107559059A (en) * | 2017-09-29 | 2018-01-09 | 西安热工研究院有限公司 | A kind of drawn gas using low-pressure stage of steam turbine heats raw coal electricity generation system |
| CN107620975A (en) * | 2017-09-29 | 2018-01-23 | 西安热工研究院有限公司 | A kind of electricity generation system that raw coal is heated using recirculated cooling water |
| CN110131001A (en) * | 2019-04-24 | 2019-08-16 | 中国神华能源股份有限公司 | The regulation method of electricity generation system and electricity generation system |
| CN110159374A (en) * | 2019-04-24 | 2019-08-23 | 中国神华能源股份有限公司 | The regulation method of electricity generation system and electricity generation system |
| CN112460578A (en) * | 2020-11-23 | 2021-03-09 | 西安热工研究院有限公司 | Method and system for utilizing east China coal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0393179B1 (en) * | 1988-10-18 | 1992-07-22 | Saarberg-Interplan, Gesellschaft für Rohstoff-, Energie- und Ingenieurtechnik mbH | Process for generating electrical energy and/or drying and process heat |
| DE19612186A1 (en) * | 1996-03-27 | 1997-10-02 | Steinmueller Gmbh L & C | Method of drying crude lignite, with fluidised bed dryer |
| CN101581532A (en) * | 2009-06-04 | 2009-11-18 | 山东天力干燥设备有限公司 | Multi-effect system and process for pre-drying lignite through overheated steam |
| CN101581533A (en) * | 2009-06-04 | 2009-11-18 | 山东天力干燥设备有限公司 | Device for pre-drying lignite through overheated steam and process thereof |
| CN201412195Y (en) * | 2009-06-17 | 2010-02-24 | 赵永权 | Device for directly utilizing condensation heat of steam exhausted from steam turbine of power plant |
-
2010
- 2010-05-27 CN CN201010183848A patent/CN101881191B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0393179B1 (en) * | 1988-10-18 | 1992-07-22 | Saarberg-Interplan, Gesellschaft für Rohstoff-, Energie- und Ingenieurtechnik mbH | Process for generating electrical energy and/or drying and process heat |
| DE19612186A1 (en) * | 1996-03-27 | 1997-10-02 | Steinmueller Gmbh L & C | Method of drying crude lignite, with fluidised bed dryer |
| CN101581532A (en) * | 2009-06-04 | 2009-11-18 | 山东天力干燥设备有限公司 | Multi-effect system and process for pre-drying lignite through overheated steam |
| CN101581533A (en) * | 2009-06-04 | 2009-11-18 | 山东天力干燥设备有限公司 | Device for pre-drying lignite through overheated steam and process thereof |
| CN201412195Y (en) * | 2009-06-17 | 2010-02-24 | 赵永权 | Device for directly utilizing condensation heat of steam exhausted from steam turbine of power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101881191A (en) | 2010-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101881191B (en) | Thermal power generation system based on high-moisture lignite pre-drying upgrading and recovering technology | |
| CN102798132B (en) | Fan mill front counter flow type furnace-smoke drying dewatering direct blowing pulverization system | |
| CN103575068B (en) | Lignite drying water recycling and drying tail gas recycling system | |
| CN102798133B (en) | Fan grinding hot blast powder feeding and pulverizing system utilizing flue gas drying and water recycling | |
| CN102353237A (en) | High-moisture-content lignite predrying method and system integrated with thermal power plant | |
| CN102840595A (en) | Fume pre-dried lignite medium speed mill straight-blowing powder-making system | |
| CN102889608B (en) | Direct fired pulverizing system of smoke pre-drying lignite fan mill | |
| CN103277155B (en) | Brown coal are predrying-preheated air-UTILIZATION OF VESIDUAL HEAT IN compound coal generating system | |
| CN108626713A (en) | A kind of power plant soot steam extraction drying UTILIZATION OF VESIDUAL HEAT IN integral system | |
| CN103807868A (en) | Inner heating fluidized bed drying system applicable to brown coal air cooling generator set | |
| CN202132964U (en) | Fan mill front counter flow type furnace-smoke drying dewatering direct blowing pulverizer system | |
| CN112197278A (en) | System for coupling sludge drying incineration of secondary reheating power station boiler | |
| CN204404213U (en) | A kind of power station brown coal fluidized bed drying system saving desulfurizing tower water consumption | |
| CN104534850B (en) | A kind of predrying system and method for raw coal low temperature utilizing flue gas, exhaust steam used heat | |
| CN203561148U (en) | Lignite dry water recovering and dry tail gas recycling system | |
| CN102183135A (en) | Two-stage drying and gasification integrated device and method of organic matter | |
| CN104048479B (en) | Based on the two-step fluidized bed brown coal drying system of residual heat recovery | |
| CN203239407U (en) | Lignite predrying-air preheating-waste heat utilization combination coal-fired power generation system | |
| CN204240347U (en) | Superheat steam drying powder process type coal generating system | |
| CN103673534B (en) | Utilize residual heat of electric power plant drying brown coal water lift recovery system | |
| CN202195495U (en) | Medium-speed milling direct-blow pulverization system for flue gas pre-dried lignite | |
| CN203687545U (en) | Lignite water extraction and recovery system utilizing waste heat generated by power plant to carry out drying | |
| CN104329667A (en) | Superheated steam drying power-making coal-fired power generation system | |
| CN204006970U (en) | Two-step fluidized bed brown coal drying system based on residual heat recovery | |
| CN204240391U (en) | Superheat steam drying powder process type coal 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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP CO., LTD. Free format text: FORMER NAME: CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP03 | Change of name, title or address |
Address after: 100120 Beijing Xicheng District andelu No. 65 hospital Patentee after: CHINA POWER ENGINEERING CONSULTING (GROUP) CORPORATION Patentee after: Co., Ltd of Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Address before: 100120 Beijing city Xicheng District No. 65 Andrew Patentee before: China Power Engineering Consulting Group Corporation Patentee before: Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation |