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Business Portfolio

Air Pollution Control

ESP series

Fujian Longking Co., Ltd. has dedicated to dust removal industry for over 4 decades, with top-level creativity capacity and production & sales volume in the industry. The ultra-low emission technologies newly developed in the recent years such as low-low temperature ESP and wet ESP, has provide solid technic and equipment support for the haze control and flue gas ultra-clean emission of China.

More than 2000 application cases

Obtain over 300 valid patents as well as more than 30 national, provincial and ministerial science and technology awards

The total supporting installed capacity is nearly 200 million KW, of which the total supporting export capacity is nearly 60 million KW

Key Technology

BEH model high-efficiency power-conservation ESP technology

LSC waste-heat utilization low-low temperature ESP technology

WBE wet type ESP technology

HLG dry type converter gas deep Purification and in-situ reuse integrated technology

HLT type high temperature filter cartridge synergistic dust and nitrate removal technology

BY type ESP technology Special for Sintering Main ESP

  • The DE and CE system both adopt the top electromagnetic hammer rapper, in order to realize the high-low-voltage-linkage break/undervoltage electric rapping technology.
  • It can be equipped with advanced technologies such as mechatronic multi-compound double-zone electric field, mobile electrode and power-off rapping.
  • It can be equipped with one or combination of High-frequency power supply, pulse power supply, frequency conversion power supply, three-phase power supply technologies etc.
  • Every 10 ℃ decrease in smoke temperature can save about 0.5 g/kWh standard power generation coal consumption.
  • The dust emission concentration can be controlled at best below 10mg/Nm³
  • The removal rate of SO₃ reaches above 95% (ash/S ratio > 100)
  • The removal rate of PM2.5 is above 98%.
  • Unique electric field electrode alignment, enabling high field intensity, zero electric field dead zone and highly reliable operation
  • CFD full-size numerical simulation design + physical model verification + site adjustment, ensuring uniform airflow distribution
  • Scientific spray design, ensuring high efficiency and low consumption
  • Longking patent compound structure, of high space utilization rate
  • Emission level being lower than 10mg/Nm³
  • Circulating water is 1/4 of that of the wet method
  • Save more than 4Kwh per ton of steel than wet type flue gas desulfurization
  • Dust removal ash return furnaceto realize resource recycling and utilization.
  • Infrared warning and intelligent control, System operation is safe and stable.
  • After expert group identification,The overall achievement has reached the international advanced level.
  • Coupled with high temperature dry desulphurization technology, the .
  • It has the advantages of short technical process, compact layout, low system resistance, high boiler heat recovery efficiency, low operation and maintenance cost, long life of filter cartridge (≥5 years) and so on.
  • This technology can be applied to wide temperature window (200~400℃). Due to the use of dry process with none waste water generation, equipments, pipes and chimney systems do not need anti-corrosion protection.
  • The technology has a supporting technology for HLT type high temperature filter cartridge synergistic dust and nitrate removal equipment showing an international leading level.
  • Adapt to complex flue gas conditions such as high negative pressure, high flue moisture content, high alkali ratio, high and low temperature range, and high dust viscosity.
  • The long-term, reliable and efficient equipment operation can effectively improve the synchronous operation rate of ESP and sintering machine.
  • Intelligent mechatronics control system, with low energy consumption.
  • Longking has the independent intellectual property rights of the sintering machine head special electric precipitator supporting technology.

Classic Case

The demonstration project of Low temperature electric dust removal + wet electric dust removal + plume removal + Intelligent environmental protection for 1000MW unit of Meizhou Bay Power Plant, SDI

  • The demonstration project of Low temperature electric dust removal + wet electric dust removal + plume removal + Intelligent environmental protection for 1000MW unit of Meizhou Bay Power Plant, SDI

    Waste-heat utilization low-low temperature ESP project for 1000MW unit of Qinbei Power Plant

    Wet ESP project for 2×1000MW units of Beijiang Power Plant Phase II, SDIC

    ESP project for 2×1000MW units +4×600MW units of Guangdong Taishan Power Plant

    4×210t HLG Dry TypeConverter Gas Recovery &Purification System in Fangchenggang Steel Base of Guangxi Iron & Steel

  • 3×210t HLG Dry TypeConverter Gas Recovery &Purification System in Guangxi Liuzhou Iron &Steel Group CO.,Ltd

    Baosteel Zhanjiang Phase 3550 ㎡ sintering main ESP project

    SD Steel Laiwu 2X480 ㎡ sintering main ESP project

    Almaden Group Fengyang Silicon Valley filter cartridge dust and nitrate integration removal project

    National Bio energy zhengyang Co.,Ltd 1x35MW biomass cogeneration electric dust removal project

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