Dedusting
Electrostatic Precipitator
Longking supplies comprehensive environmental solutions including conventional type ESP, low-low temperature ESP, Wet ESP,electromechanical two-stage ESP, moving electrode, power-off rapping, non-leakage GGH device etc. The BEH type ESP independently researched and developed by Longking, a combination of advanced technologies and capable to realize the low dust emission requirements,has been applied to more than 750 projects with an installed capacity of more than 300GW.
The world's biggest ESP project—ESPs for 660MW units of Tiroda Power Plant in India
BEH type ESP for 2×1000 MW units of Xuzhou Power Plant
Low-low temperature Electrostatic-fabric Precipitator ESP
The low-low temperature ESP initially developed by Longking can realize the multi-pollutant coordination treatment such as particulate matter,SO3, PM2.5, Hg and other pollutants, the collecting efficiency can reach over 98% and save the coal consumption for more than 1.5 g/kWh, and it has been utilized in more than 150 projects with an installed capacity of more than 80000 MW.
The Coal Saving type of Low-low temperature ESP for 1000MW unit in the Qinbei Power Plant
Low-low temperature ESP matching with LGGH for 2×660MW units in the Dapu Power Plant
Wet Electrostatic Low-low temperature Electrostatic-fabric Precipitator
In 2010, Longking pioneered in developing Wet electrostatic precipitator for power plant in China. This independently developed technology joined Government sponsored 863 research subject, and was utilized in largescale coal-fired units with the capacities of 300MW, 600MW and 1000MW.Test results showed the WBE type Wet ESP with metal plate and type WE type Wet ESP (demister) with electro-conductive FRP plate reserched and developed by Longking is able to realize ultra-low emission of dust below than 5mg/Nm3, and at the meantime an efficient coordinated treatment of PM2.5 and SO3, Liquid Discharge from Stacks (LDS), heavy metal Including mercury and other pollutants.
Wet ESP for 2×1000MW units of Qinzhou Power Plant
Wet ESP for 1000MW unit of Tongling Power Plant
Electrostatic-fabric Integrated Precipitator (EFIP)
Longking electrostatic-fabric integrated precipitators have reched the world leading technological level with many application references. Ultra-clean EFIP technology is able to achieve ultra low emission requirement of elow 5mg/Nm3 alone without Wet ESP. In addition, ultra-clean EFIP has the function of removal of PM2.5, mercury, and SO3. It has three advantages including low emission, low cost, and low power consumption. It has successfully been adopted in more than 30 sets including 1000MW units. It is one of the best techniques to realize ultra-low emission.
Ultra-clean EFIP for 1000MW unit of Pingdingshan Power Plant
Ultra-clean EFIP for 660 MW unit of Guandong Shajiao C Power Plant
Ultra-clean EFIP for 2×660 MW unit of Kaifeng Power Plant
Ultra-clean EFIP for 4×600MW+2×1000MW unit of 1 Pingwei Power Plant
FGD
DSC-M Dry Ultra-low Emission ControlTechnology and Equipment
DSC-M dry ultra-low emission control technology and equipment (DSC-M System) has been developed by Longking based on LJD dry CFB-FGD system. It’s a simple yet reliable and cost-effective system with high operational flexibility, and NOx removal can be realized by combination of SNCR/SCR/COA depending on different flue gas sources. It can realize the flue gas emission of NOX≤50mg/Nm3, SO2≤35mg/Nm3, PM≤5mg/Nm3, SO3≤5mg/Nm3, Hg≤3μg/Nm3, as well as zero Liquid Discharge from Stacks,meeting the ultra-low emission standard of "50355+530". The DSC-M system has been applied in different areas including coalfired power plants, sintering plants, pelletizing plants, FCC, coking system, carbon black plants, electrolytic aluminum industry, glass furnace, and other industries
DSC-M dry ultra-low emission control technology and equipment (DSC-M System) has been developed by Longking based on LJD dry CFB-FGD system. It’s a simple yet reliable and cost-effective system with high operational flexibility, and NOx removal can be realized by combination of SNCR/SCR/COA depending on different flue gas sources. It can realize the flue gas emission of NOX≤50mg/Nm3, SO2≤35mg/Nm3, PM≤5mg/Nm3, SO3≤5mg/Nm3, Hg≤3μg/Nm3, as well as zero Liquid Discharge from Stacks,meeting the ultra-low emission standard of "50355+530". The DSC-M system has been applied in different areas including coalfired power plants, sintering plants, pelletizing plants, FCC, coking system, carbon black plants, electrolytic aluminum industry, glass furnace, and other industries
Hangzhou Hanglian ultra-low emission control project – Air protection project of G20 Summit
Guojin 2×350MW ultra-low emission control project
Guofeng 2×300MW ultra-low emission control project
World’s largest sintering machine dry FGD system for Baosteel
The " Three Zones in One " Absorber with high Efficiency of De sulfurization and Dust Removal
The "Three Zones in One" absorber of Longking is an ultra clean coordinated control tower technology with the capability for removing of sulfur dioxide, dust, mist, SO3 and PM2.5. This technology can achieve the following ultra-low emission requirements: SO2 emissions below 35mg/Nm3, dust emissions below 5mg/Nm3, the removal efficiency of SO3 is over 70%. This technology also has comprehensive advantages such as small space demand, water saving, energy saving and low cost. This technology has been used in many ultralow emission projects, such as Jiangsu Ligang coal power plant, Xingtai Guotai coal power plant etc.
The "Three Zones in One" absorber of Longking is an ultra clean coordinated control tower technology with the capability for removing of sulfur dioxide, dust, mist, SO3 and PM2.5. This technology can achieve the following ultra-low emission requirements: SO2 emissions below 35mg/Nm3, dust emissions below 5mg/Nm3, the removal efficiency of SO3 is over 70%. This technology also has comprehensive advantages such as small space demand, water saving, energy saving and low cost. This technology has been used in many ultralow emission projects, such as Jiangsu Ligang coal power plant, Xingtai Guotai coal power plant etc.
The Three Zones in One Absorber with high Efficiency of Desulfurization and Dust Removal Device of Ligang (2×600MW)
The Three Zones in One Absorber with high Efficiency of Desulfurization and Dust Removal Device of Xingtai (2×300MW)
Turbulent Double Zones Absorber with High-Efficient Desulfurization
Longking developed the highefficient desulfurization technology of "Turbulent Double Zones Absorber",which is based on the "2 zones within one tower" technology. The technology is to enhance the turbulence and spray partition effect through the provision of tray in the spray area. The technology completely achieves the purpose of highefficienct desulfurization and dedusting, and has the advantages of small size,low cost, low energy consumption and reliable operation.
Turbulent Double Zones Absorber Desulfurization Project of Wangting Power Plant 2×660MW Units
Turbulent Double Zones Absorber Desulfurization 1 Project of Anyuan Power Plant 2×660MW Units
De-Nox
SCR Denitration Technology
The SCR flue gas denitration technology of Longking has combined the disc swirl flow technology with AIG ammonia injection technology, which can ensure ammonia/flue gas mixed more evenly. The special pneumatic regulating valve group was used to control ammonia flow, which has many advantages such as good linear regulatory, fast response, stable adjustment and good sealed performance. The advantages can ensure higher denitration efficiency and lower ammonia escape efficiency. This technology can achieve the following requirements: denitration efficiency is over 90%; ammonia escape efficiency below 2.5ppm, SO2/SO3 conversion rate below 1%.
The SCR flue gas denitration technology of Longking has combined the disc swirl flow technology with AIG ammonia injection technology, which can ensure ammonia/flue gas mixed more evenly. The special pneumatic regulating valve group was used to control ammonia flow, which has many advantages such as good linear regulatory, fast response, stable adjustment and good sealed performance. The advantages can ensure higher denitration efficiency and lower ammonia escape efficiency. This technology can achieve the following requirements: denitration efficiency is over 90%; ammonia escape efficiency below 2.5ppm, SO2/SO3 conversion rate below 1%.
Flue Gas Denitration Device of 2×1000MW Unit in Hongshan Coal Power Plant
Flue Gas Denitration Device of 2×600MW Unit in Kemen Coal Power Plant
Longkingcotech SCR DeNOx Catalyst
Longkingcotech is a wholly-owned subsidiary of Longking group, which is a professional SCR DeNOx catalyst manufacturer, providing high quality catalysts and engineering services for coal-fired power plant, gas turbines, steel, coking, cement, petrochemical and refinery industries, etc.
Longkingcotech introduced the most advanced catalyst regeneration technology from US, and has built the state-of-the-art catalyst manufacturing facilities, R&D center and testing laboratory.
Our excellent products, complete catalyst management solutions enable our customers to meet the more and more stringent environmental regulations worldwide with the most reliable and cost effective ways.
Products and Services:
1. SCR DeNOx Catalyst:
Longkingcotech manufactures homogeneous titanium-based ceramic honeycomb SCR catalysts for coal-fired applications that are designed for long-life and high performance.
Our catalysts are ideal for a variety of coal types that produce a range of flue gas properties, particulate characteristics, and temperatures, including high and low dust applications.
Characteristics of our DeNOx catalysts:
- High plugging resistance.
- High specific surface area.
- High DeNOx removal efficiency.
- Low SO2/SO3 convert ratio.
- Low pressure drop and ammonia slip.
Catalyst Regeneration:
1．Performance comparison before and after regeneration :
- After the regeneration, the chemical activity of the catalyst can be restored to 100% of the fresh catalyst;
- The deactivation rate of the regenerated catalyst is equal to that of the fresh catalyst;
- The SO2/SO3 conversion ratio of regenerated catalyst is effectively reduced compared with fresh catalyst.
2. Apperance before and after regeneration
Electrical Control
Electric Control Technology
Longking's electric control technology has been in the leading position of the industry for more than four decades. The self-developed technologies, including power supply, high-frequency power supply, pulse power supply, three-phase power supply, inverter power supply, energy-saving optimization control system ,are widely used in many fields includin power generation,building materials,metallurgy and others.
High-frequency power supply for 2×1000MW unit of Hefeng Power Plant
High-frequency power supply for 2×600 MW unit of Zhaojin Power Plant
Pulse power supply for 2×300MW unit of Huayang Power Plant
Power frequency pulse power supply for 2×300MW unit of Taigang Power Plant
Energy saving system of electric IPEC in Chaozhou Power Plant
Bulk Material Handling
Pre - boiler Environmental Island Technology
Longking pioneered the pre-boiler environmental island technology with circular pipe conveyor as the main bodies, which offers a full set of green and economical system solution for the loading, piling up, storage and conveying of bulk materials used in industries such as electricity,metallurgy, coal, mine and so on.
Large-angle circular pipe conveying system for 8×660MW units of Tuoketuo Power Plant of Datang International Power Generation Co., LTD.
Fuel storage and transportation system construction project (EP project) of Qilu Branch of Sinopec
Pneumatic Conveying Technology
Longking has established an international advanced pneumatic conveying testing facility. A series of pneumatic conveying products, which have been developed with the "material property analysis method", have been applied to many projects including 1000MW units and the project achievements are more than 800 sets.
Longking has established an international advanced pneumatic conveying testing facility. A series of pneumatic conveying products, which have been developed with the "material property analysis method", have been applied to many projects including 1000MW units and the project achievements are more than 800 sets.
Ash Handling System for 2×1000MW Units at Suizhong Power Plant
Ash Handling System with Low Pressure Air Compressors for 2×660MW Units at Guodian Dananhu Power Plant
Business Field
Provide one package solution for industrial flue gas control
Flue Gas Integrated Cleanup System /BOT/EPC Project
Longking pioneered in contracting several "Flue Gas Integrated Cleanup System" ultra-low emission projects such as 2×660MW Luoyuan Power Plant, 2×660MW Shaowu Power Plant etc., has contracted and successfully proceeded a number of BOT projects in China such as FGD and denitration BOT projects of Huadian Xinjiang Xiheishan 2×660MW units, and successfully performed EPC projects abroad, such as the Kalimantan Power Plant in Indonesia and the Bhilai Steel Plant in India etc.
Flue gas Integrated cleanup system project for 2×660MW Units of Shaowu Power Plant
Flue gas Integrated cleanup system project for 2×660MW Units of Luoyuan Power Plant
Flue gas Integrated cleanup system project for 2×660MW Units of Yonngli Power Plant
FGD BOT project for 2×330MW Units of Urumchi Thermal Power Plant
Kalimantan Tengah 2×66MW coal fired power plant EPC project of PLN
Source: Fujian Longking
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