1. scope of application

Flue gas and wastewater treatment in coal, electricity, metallurgy, building materials and other fields

2. Brief description of technology

This technology is based on agglomeration technology and desulfurized wastewater is used as the carrier. After the desulfurized wastewater is pretreated by the traditional "triple box", an agglomeration compound agent with independent intellectual property rights is added, and atomized and sprayed into the inlet and outlet flues of the air preheater in proportion. While consuming desulfurized wastewater, it collaboratively manages multiple pollutants such as fine particulate matter and sulfur trioxide, and no new solid waste is generated. Features: It can be constructed and installed online without affecting the normal operation and production of the system. It can also avoid duplicate construction, investment, operation and maintenance, etc., and greatly reduce the cost of enterprise transformation and operation. Key equipment: emulsification device, wastewater buffer device, atomizing spray device, metering module

3. technical information

Spray gun: nozzle material c-276, atomization particle size ≤60μm; blanking device: speed 100r/min, power 370w; emulsion pump: flow rate 5m³/h, head

4. comprehensive benefits

1. Resource utilization Taking a 300MW unit as an example, this technology can treat 25000 tons of desulfurization wastewater per year and consume 7.5 tons of agglomeration agent per year. 2. Taking the 300MW unit as an example, the power consumption of this technology is 10kw/t of water, which is only about 10% of the power consumption of the existing technology with the same function, and the utilization of waste flue gas waste heat energy is about 750%.~2250kw/h。3. No wastewater is produced in the water environment and has no impact on surface water bodies, groundwater bodies and the marine environment. Moreover, desulfurization wastewater can be fully utilized to achieve zero wastewater discharge. 4. Atmospheric environmental pollutants, conventional pollutants, soot: It can improve the soot removal efficiency of existing dust removal facilities by more than 50%, achieve a soot emission concentration far lower than the national ultra-low emission standard of 10mg/m3, and the annual emission reduction of soot from a single 300MW unit is about 100 tons. Unconventional pollutant sulfur trioxide: The sulfur trioxide removal efficiency reaches more than 50%, and the annual sulfur trioxide emission reduction of a single 300MW unit is about 160 tons. Unconventional pollutant PM2.5: The PM2.5 removal efficiency reaches more than 70%, and the annual PM2.5 emission reduction of a single 300MW unit is about 30 tons. 5. Solid waste does not generate additional solid waste and will not cause secondary pollution to the environment.