CN201697441U - Indirect heat exchanging drying low-rank coal utilization system of pumped steam of thermal power plant - Google Patents
Indirect heat exchanging drying low-rank coal utilization system of pumped steam of thermal power plant Download PDFInfo
- Publication number
- CN201697441U CN201697441U CN 201020253510 CN201020253510U CN201697441U CN 201697441 U CN201697441 U CN 201697441U CN 201020253510 CN201020253510 CN 201020253510 CN 201020253510 U CN201020253510 U CN 201020253510U CN 201697441 U CN201697441 U CN 201697441U
- Authority
- CN
- China
- Prior art keywords
- steam
- power plant
- low
- thermal power
- indirect
- 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
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to an indirect heat exchanging drying low-rank coal utilization system of the pumped of a thermal power plant, which comprises an indirect heat exchanging low-rank coal predrying device which takes a boiler of the thermal power plant or a steam pipeline of a steam turbine as a heat source, the steam tail gas obtained by the dying low-rank coal of the device is connected with a secondary steam heat-insulation cleaning device, the secondary steam heat-insulation cleaning device is connected with a secondary steam recycling device, and the secondary steam recycling device is connected with dust-contained sewage purifying utilization device. The utility model takes the boiler or the steam pumped by the steam turbine as the heat source, dewaters and dries the low-rank coal (brown coal) with high moisture level through an indirect heat exchanger, butts the secondary steam generated by the low-rank coal (brown coal) and the soda water system of the thermal power plant, improves the operating condition of the boiler, obviously reduces the CO2 emission and fuel consumption, reduces the wear of a coal mill and a supporting system, improves the generating efficiency of the thermal power plant, makes up the blank of drying comprehensive utilization of the low-rank coal ( brown coal ) in the domestic thermal power plant.
Description
Technical field
The utility model relates to a kind of thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system.
Background technology
Present domestic coal-fired station does not also have actual expansion to the dry commercial Application of low-order coal (brown coal), and at low-order coal (brown coal) power plant of existing use pulverized-coal fired boiler, domestic present commercial scale low-order coal (brown coal) drying and dehydrating technology is blank.
The utility model content
The purpose of this utility model is exactly in order to address the above problem, a kind of thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system is provided, it passes through the steam of boiler or steam turbine extraction as drying source, the low-order coal (brown coal) of the high-moisture drying machine by indirect heat exchange is dehydrated, and the indirect steam that low-order coal (brown coal) dehydration is produced and the boiler circuit of power plant are docked, can improve the boiler operatiopn condition, can obviously reduce CO2 discharging and fuel consumption, reduce the loss of coal pulverizer and corollary system, improve the generating efficiency of power plant, filled up the blank of the dry comprehensive utilization of domestic thermal power plant low-order coal (brown coal).
For achieving the above object, the utility model adopts following technical scheme:
A kind of thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system, it comprises that the steam pipework with heat power plant boiler or steam turbine is the indirect heat exchange low-order coal pre-drying device of thermal source, the steam tail gas of the drying low-order coal gained of this device is connected with the adiabatic wash mill of indirect steam, the adiabatic wash mill of indirect steam is connected with the indirect steam recycle device, and the indirect steam recycle device then is connected with dust-laden purification of waste water use device.
Described indirect heat exchange low-order coal pre-drying device comprises that at least one has the main drying of built-in heat exchanger, and its built-in heat exchanger inlet end is communicated with the steam pipework of heat power plant boiler or steam turbine; The outlet side is connected with condensate system; The main drying charging aperture is connected with feed arrangement, and discharging opening connects the boiler feeding system; Steam tail gas is divided into two-way after after the one-level dust arrester dedusting at least, the one tunnel returns main drying after the vapour compression unit compression; The adiabatic wash mill of indirect steam is sent on another road.
Described dust arrester is made up of the cyclone dust collectors and the one-level electrostatic precipitator of two-stage or three grades of series connection.
Described dust arrester is composed in series by three grades of cyclone dust collectors.
Described vapour compression unit is vapour compression machine or blower fan and heat pump.
Described feed arrangement comprises coal bunker, and coal bunker cooperates with conveying device, and conveying device is connected with the sealing feeding device, and the sealing feeding device is connected with the indirect heat exchange drying machine.
The adiabatic wash mill of described indirect steam comprises scrubbing tower and circulating hot-water pump and the moisturizing discharge pipe line that is connected.
Described indirect steam recycle device comprises heat exchange condensers and boiler feedwater or heating system.
Described dust-laden purification of waste water use device comprises intake pool, product pond, water purification installation water-delivery pump and the connecting line that connects successively.
A kind of technology of thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system, as heat medium, this part steam enters indirect heat exchange low-order coal pre-drying device and carries out dry heat exchange from the low-order coal that the sealing feeding device adds with the steam that extracts from heat power plant boiler or steam turbine for it; Indirect heat exchange low-order coal pre-drying device is heated as superheated steam with the moisture of deviating from the low-order coal, returns indirect heat exchange low-order coal pre-drying device after the vapour compression machine of leading up to after this part the superheated steam dedusting pressurization and carries out recycling; Another road is through secondary utilization behind washing, purifying, is used for heating boiler feedwater or heating, uses as the life water conservancy behind the water reclaiming clean that condensation is got off; Dried low-order coal and enter feeder together from the collected coal dust of dust arrester enters boiler combustion by coal pulverizer.
The utility model is as a kind of thermal power plant in steam pumping indirect heat exchange drying low-order coal (brown coal) utilization system, comprise power plant boiler or extracted steam from turbine device, the drying device that has a built-in heat exchanger (for example: internal heating fluidized bed drying machine, steam rotary dryer etc.), have sealing function feed arrangement, have the drawing mechanism of sealing function, multistage dust arrester, circulation vapour pressure compression apparatus, the adiabatic wash mill of superheated steam, the Steam Recovery use device, compositions such as water reclaiming clean device.
The beneficial effects of the utility model: add superheated steam contact drying system in thermal power plant's internal system and carry out predrying to low-order coal (brown coal), the boiler turbine boiler circuit in thermal power plant and coal supply system and water treatment system are all coupled together, accomplish slitless connection with thermal power plant, improved boiler efficiency, reduced gross coal consumption rate, reduced CO2 emission, saved a large amount of energy resource consumptions, energy-saving effect is remarkable.Therefore great promotion prospect is at home and abroad arranged.In China is under the Strategic Context of main energy sources with coal, quick growth trend at low-order coal (brown coal) generating ratio, develop and spread thermal power plant in steam pumping indirect heat exchange drying low-order coal (brown coal) comprehensive utilization technique energetically, technology upgrading innovation and energy-saving and emission-reduction work to China's electric power energy industry, to play crucial impetus, be environmentally friendly, water resource economizing type clean coal technological project.
Description of drawings
Fig. 1 is a process schematic representation of the present utility model.
Wherein, 1. coal bunker 2. conveying devices 3. seal adiabatic wash mill 11. heat exchange condensers of feeding device I 4. main dryings 5. sealed discharging devices 6. one-level cyclone dust collectors 7. secondary cyclone dust collectors, 8. electrostatic precipitators, 9. vapour compression machines, 10. indirect steams 12 feed water systems of boiler 13 heating systems 14 dust-laden purification of waste water use devices.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Among Fig. 1, thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system comprises that the steam pipework with heat power plant boiler or steam turbine is the indirect heat exchange low-order coal pre-drying device of thermal source, the steam tail gas of the drying low-order coal gained of this device is connected with the adiabatic wash mill of indirect steam, the adiabatic wash mill of indirect steam is connected with the indirect steam recycle device, and the indirect steam recycle device then is connected with dust-laden purification of waste water use device.
Described indirect heat exchange low-order coal pre-drying device comprises at least one main drying that has built-in heat exchanger 4, and its built-in heat exchanger inlet end is communicated with the steam pipework of heat power plant boiler or steam turbine; The outlet side is connected with condensate system; Main drying 4 charging apertures are connected with feed arrangement, and discharging opening connects the boiler feeding system through sealed discharging device 5; Steam tail gas is divided into two-way after after the one-level dust arrester dedusting at least, the one tunnel returns main drying 4 after the vapour compression unit compression; The adiabatic wash mill of indirect steam is sent on another road.
Described dust arrester is made up of one-level cyclone dust collector 6 and secondary cyclone dust collector 7 and the electrostatic precipitator 8 of series connection.Certainly, described dust arrester also can be composed in series by three grades of cyclone dust collectors, perhaps uses the combination of one-level, secondary and three grades of cyclone dust collectors and static pressue device, also can be fully with the combination of cyclone dust collector.
Described vapour compression unit is vapour compression machine 9 or blower fan and the heat pump with said function.
Feed arrangement comprises coal bunker 1, and coal bunker 1 cooperates with conveying device 2, and conveying device 2 is connected with sealing feeding device 3, and sealing feeding device 3 is connected with main drying 4.Conveying device 2 is including, but not limited to being conveying worm, embedded scraper transporter, belt conveyor, chain scraper conveyor or bucket elevator etc.; Sealing feeding device 3 is including, but not limited to rotation discharge valve, star-like valve, airlock, conveying worm, embedded scraper transporter or chain scraper conveyor etc.
The built-in heat exchanger of main drying 4 can be one or more groups heat exchanger tube, the inner-heating tube import links to each other with the steam of extracting out from power plant boiler or steam turbine, finishes exchange heat in the inner-heating tube group of steam in main drying 4 and becomes the boiler circuit that condensed water returns boiler and steam turbine.
The adiabatic wash mill 10 of indirect steam comprises scrubbing tower and circulating hot-water pump and the moisturizing discharge pipe line that is connected.
The indirect steam recycle device comprises heat exchange condensers 11 and the feed water system of boiler 12 or heating system 13.
Dust-laden purification of waste water use device 14 comprises intake pool, product pond, water purification installation water-delivery pump and the connecting line that connects successively.
Technology of the present utility model is: as heat medium, this part steam enters indirect heat exchange low-order coal pre-drying device and carries out dry heat exchange from the low-order coal that the sealing feeding device adds with the steam that extracts from heat power plant boiler or steam turbine for it; Indirect heat exchange low-order coal pre-drying device is heated as superheated steam (indirect steam) with the moisture of deviating from the low-order coal, returns indirect heat exchange low-order coal pre-drying device after the vapour compression machine of leading up to after this part the superheated steam dedusting pressurization and carries out recycling; Another road is through secondary utilization behind washing, purifying, is used for heating boiler feedwater or heating, uses as the life water conservancy behind the water reclaiming clean that condensation is got off; Dried low-order coal and enter feeder together from the collected coal dust of dust arrester enters boiler combustion by coal pulverizer.
Claims (9)
1. thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system, it is characterized in that, it comprises that the steam pipework with heat power plant boiler or steam turbine is the indirect heat exchange low-order coal pre-drying device of thermal source, the steam tail gas of the drying low-order coal gained of this device is connected with the adiabatic wash mill of indirect steam, the adiabatic wash mill of indirect steam is connected with the indirect steam recycle device, and the indirect steam recycle device then is connected with dust-laden purification of waste water use device.
2. thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system as claimed in claim 1, it is characterized in that, described indirect heat exchange low-order coal pre-drying device comprises that at least one has the main drying of built-in heat exchanger, and its built-in heat exchanger inlet end is communicated with the steam pipework of heat power plant boiler or steam turbine; The outlet side is connected with condensate system; The main drying charging aperture is connected with feed arrangement, and discharging opening connects the boiler feeding system; Steam tail gas is through being divided into two-way after the dedusting of one-level dust arrester at least, and one the tunnel returns main drying after the vapour compression unit compression; The adiabatic wash mill of indirect steam is sent on another road.
3. thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system as claimed in claim 2 is characterized in that described dust arrester is made up of the cyclone dust collectors and the one-level electrostatic precipitator of two-stage or three grades of series connection.
4. thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system as claimed in claim 2 is characterized in that described dust arrester is composed in series by three grades of cyclone dust collectors.
5. thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system as claimed in claim 1 is characterized in that, described vapour compression unit is vapour compression machine or continuous blower fan and heat pump.
6. thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system as claimed in claim 2, it is characterized in that described feed arrangement comprises coal bunker, coal bunker cooperates with conveying device, conveying device is connected with the sealing feeding device, and the sealing feeding device is connected with the indirect heat exchange drying machine.
7. thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system as claimed in claim 1 is characterized in that, the adiabatic wash mill of described indirect steam comprises scrubbing tower and circulating hot-water pump and the moisturizing discharge pipe line that is connected.
8. thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system as claimed in claim 1 is characterized in that described indirect steam recycle device comprises heat exchange condensers and boiler feedwater or heating system.
9. thermal power plant in steam pumping indirect heat exchange drying low-order coal utilization system as claimed in claim 1 is characterized in that, described dust-laden purification of waste water use device comprises intake pool, product pond, water purification installation water-delivery pump and the connecting line that connects successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020253510 CN201697441U (en) | 2010-07-12 | 2010-07-12 | Indirect heat exchanging drying low-rank coal utilization system of pumped steam of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020253510 CN201697441U (en) | 2010-07-12 | 2010-07-12 | Indirect heat exchanging drying low-rank coal utilization system of pumped steam of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201697441U true CN201697441U (en) | 2011-01-05 |
Family
ID=43398688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020253510 Expired - Fee Related CN201697441U (en) | 2010-07-12 | 2010-07-12 | Indirect heat exchanging drying low-rank coal utilization system of pumped steam of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201697441U (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852540A (en) * | 2010-07-12 | 2010-10-06 | 山东天力干燥设备有限公司 | Comprehensive utilization system for drying low-order coal of thermal power plant in steam pumping and indirect heat exchanging way and process thereof |
| CN102759265A (en) * | 2012-07-12 | 2012-10-31 | 西安交通大学 | Brown coal predrying power generation system integrated with absorption heat pump |
| CN102840593A (en) * | 2011-06-20 | 2012-12-26 | 上海机易电站设备有限公司 | Fume dried lignite medium speed mill powder-making system |
| CN102840594A (en) * | 2011-06-20 | 2012-12-26 | 上海机易电站设备有限公司 | Fume dried lignite medium speed mill straight-blowing powder-making system |
| CN102840595A (en) * | 2011-06-20 | 2012-12-26 | 上海机易电站设备有限公司 | Fume pre-dried lignite medium speed mill straight-blowing powder-making system |
| CN102889606A (en) * | 2011-07-20 | 2013-01-23 | 上海机易电站设备有限公司 | Direct fired pulverizing system of smoke pre-drying lignite steel ball mill |
| CN103123205A (en) * | 2013-03-07 | 2013-05-29 | 浙江大学 | Fluidization moving series arrangement steam drying system and technology |
| CN103343954A (en) * | 2013-07-29 | 2013-10-09 | 华北电力大学 | Quality-improved lignite combustion or blending combustion system |
| CN103423988A (en) * | 2013-08-30 | 2013-12-04 | 武汉工程大学 | Low-energy-consumption lignite drying system and drying process for recycling lignite moisture |
| CN103438669A (en) * | 2013-08-30 | 2013-12-11 | 南京威安新材料科技有限公司 | Material bonding prevention fluidized bed dryer |
| CN104194856A (en) * | 2014-09-12 | 2014-12-10 | 呼伦贝尔弘毅煤炭科技发展有限公司 | Method and device for drying lignite and improving quality of lignite |
| CN104373947A (en) * | 2014-11-13 | 2015-02-25 | 上海理工大学 | Superheated steam drying powder making type coal-fired power generation system |
| US9835056B2 (en) | 2015-05-26 | 2017-12-05 | General Electric Technology Gmbh | Lignite drying integration with a water/steam power cycle |
| US9944874B2 (en) | 2015-05-26 | 2018-04-17 | General Electric Technology Gmbh | Lignite drying with a heat recovery circuit |
| US9944875B2 (en) | 2015-05-26 | 2018-04-17 | General Electric Technology Gmbh | Lignite drying in a lignite fired power plant with a heat pump |
| CN109883151A (en) * | 2019-04-01 | 2019-06-14 | 江苏天合嘉能再生资源有限公司 | The furnace drying method of tailings after a kind of sorting of waste incineration slag |
| US10392575B2 (en) | 2015-05-26 | 2019-08-27 | General Electric Company | Lignite drying with closed loop heat pump |
| CN110762998A (en) * | 2019-10-31 | 2020-02-07 | 武汉钢铁有限公司 | Coal dryer, coal drying system and coal drying method |
-
2010
- 2010-07-12 CN CN 201020253510 patent/CN201697441U/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852540B (en) * | 2010-07-12 | 2012-07-04 | 山东天力干燥股份有限公司 | Comprehensive utilization system for drying low-order coal of thermal power plant in steam pumping and indirect heat exchanging way and process thereof |
| CN101852540A (en) * | 2010-07-12 | 2010-10-06 | 山东天力干燥设备有限公司 | Comprehensive utilization system for drying low-order coal of thermal power plant in steam pumping and indirect heat exchanging way and process thereof |
| CN102840593B (en) * | 2011-06-20 | 2015-04-01 | 上海援梦电力能源科技咨询中心 | Fume dried lignite medium speed mill powder-making system |
| CN102840593A (en) * | 2011-06-20 | 2012-12-26 | 上海机易电站设备有限公司 | Fume dried lignite medium speed mill powder-making system |
| CN102840594A (en) * | 2011-06-20 | 2012-12-26 | 上海机易电站设备有限公司 | Fume dried lignite medium speed mill straight-blowing powder-making system |
| CN102840595A (en) * | 2011-06-20 | 2012-12-26 | 上海机易电站设备有限公司 | Fume pre-dried lignite medium speed mill straight-blowing powder-making system |
| CN102840594B (en) * | 2011-06-20 | 2015-04-01 | 上海援梦电力能源科技咨询中心 | Fume dried lignite medium speed mill straight-blowing powder-making system |
| CN102889606A (en) * | 2011-07-20 | 2013-01-23 | 上海机易电站设备有限公司 | Direct fired pulverizing system of smoke pre-drying lignite steel ball mill |
| CN102759265A (en) * | 2012-07-12 | 2012-10-31 | 西安交通大学 | Brown coal predrying power generation system integrated with absorption heat pump |
| CN103123205A (en) * | 2013-03-07 | 2013-05-29 | 浙江大学 | Fluidization moving series arrangement steam drying system and technology |
| CN103343954B (en) * | 2013-07-29 | 2015-04-15 | 华北电力大学 | Quality-improved lignite combustion or blending combustion system |
| CN103343954A (en) * | 2013-07-29 | 2013-10-09 | 华北电力大学 | Quality-improved lignite combustion or blending combustion system |
| CN103438669A (en) * | 2013-08-30 | 2013-12-11 | 南京威安新材料科技有限公司 | Material bonding prevention fluidized bed dryer |
| CN103423988A (en) * | 2013-08-30 | 2013-12-04 | 武汉工程大学 | Low-energy-consumption lignite drying system and drying process for recycling lignite moisture |
| CN103423988B (en) * | 2013-08-30 | 2015-08-19 | 武汉工程大学 | A kind of low energy consumption brown coal drying system and drying process recycling brown coal moisture |
| CN104194856A (en) * | 2014-09-12 | 2014-12-10 | 呼伦贝尔弘毅煤炭科技发展有限公司 | Method and device for drying lignite and improving quality of lignite |
| CN104373947A (en) * | 2014-11-13 | 2015-02-25 | 上海理工大学 | Superheated steam drying powder making type coal-fired power generation system |
| US9835056B2 (en) | 2015-05-26 | 2017-12-05 | General Electric Technology Gmbh | Lignite drying integration with a water/steam power cycle |
| US9944874B2 (en) | 2015-05-26 | 2018-04-17 | General Electric Technology Gmbh | Lignite drying with a heat recovery circuit |
| US9944875B2 (en) | 2015-05-26 | 2018-04-17 | General Electric Technology Gmbh | Lignite drying in a lignite fired power plant with a heat pump |
| US10392575B2 (en) | 2015-05-26 | 2019-08-27 | General Electric Company | Lignite drying with closed loop heat pump |
| CN109883151A (en) * | 2019-04-01 | 2019-06-14 | 江苏天合嘉能再生资源有限公司 | The furnace drying method of tailings after a kind of sorting of waste incineration slag |
| CN110762998A (en) * | 2019-10-31 | 2020-02-07 | 武汉钢铁有限公司 | Coal dryer, coal drying system and coal drying method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201697441U (en) | Indirect heat exchanging drying low-rank coal utilization system of pumped steam of thermal power plant | |
| CN101852540B (en) | Comprehensive utilization system for drying low-order coal of thermal power plant in steam pumping and indirect heat exchanging way and process thereof | |
| CN101581533B (en) | Device for pre-drying lignite through overheated steam and process thereof | |
| CN102759259B (en) | Brown coal upgrading-power generation co-production system | |
| CN201569260U (en) | Indirect heat-exchange rotation superheating steam brown coal drying system | |
| CN101881191B (en) | Thermal power generation system based on high-moisture lignite pre-drying upgrading and recovering technology | |
| CN101581532B (en) | Multi-effect system and process for pre-drying lignite through overheated steam | |
| CN102353237B (en) | High-moisture-content lignite predrying method and system integrated with thermal power plant | |
| CN101565263B (en) | Sludge superheated vapor drying system of two-stage paddle dryer and drying process thereof | |
| WO2015176570A1 (en) | Method and apparatus for high-moisture, lower heating value lignite drying and water recovery in generator set | |
| WO2021212786A1 (en) | Sludge co-processing integrated system and method based on hot air circulation in coal-fired power station | |
| CN102759265B (en) | Brown coal predrying power generation system integrated with absorption heat pump | |
| CN102759253B (en) | Flue gas fluidized bed lignite drying system provided with internal heat source and integrated to heat-engine plant | |
| CN104534850B (en) | A kind of predrying system and method for raw coal low temperature utilizing flue gas, exhaust steam used heat | |
| CN103277155B (en) | Brown coal are predrying-preheated air-UTILIZATION OF VESIDUAL HEAT IN compound coal generating system | |
| CN102944024A (en) | Lignite thermal power generation system | |
| CN102650493B (en) | Device and technology for drying lignite by jointly using rotary steam tubes and high frequency | |
| CN201954917U (en) | High-moisture lignite drying system | |
| CN204041130U (en) | The brown coal drying power generation system of Water Sproading in a kind of coal | |
| CN202328279U (en) | Low temperature hot-blast air sludge drying and incineration generation integral system for heat pump | |
| CN105779071A (en) | Dewatering upgrading system and method of high-moisture lignite | |
| CN209893904U (en) | Lignite drying and water collecting system based on steam recompression technology | |
| CN203116057U (en) | Gas-exhaust brown coal fluidifying medium-speed mill direct-blowing type powder manufacturing and heat energy water recovery power generation system | |
| CN201530772U (en) | System utilizing double-stage paddle dryers and drying sludge with superheated steam | |
| CN103822439B (en) | One utilizes surplus heat of power plant to carry out pre-dried system and method to brown coal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG TIANLI DRYING CO., LTD. Free format text: FORMER NAME: TIANLI DRYING EQUIPMENT CO., LTD., SHANDONG |
|
| CP03 | Change of name, title or address |
Address after: 250101, Shandong Province, Ji'nan hi tech Zone, No. 554 Feng Feng Road, environmental science and Technology Park, building 8, Feng Feng building, room 230 Patentee after: Shandong Tianli Drying Co., Ltd. Address before: Three Cun Cai Shi Zhen Xi Cai Shi Licheng District 250103 Shandong city of Ji'nan province No. 403 Patentee before: Tianli Drying Equipment Co., Ltd., Shandong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20180712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |