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Project Details
Project Name: Desulfurization Waste Liquid Treatment and Comprehensive Utilization
Project Construction unit: Henan Jinma Energy Co., Ltd.
Construction site: Jiyuan City, Henan Jinma Energy Co., Ltd. existing plant area
Total investment: 849.09 million yuan
Project record: 2018-419001-26-03-042912
Construction Content: Construction of a production line for processing 30,000 tons of desulfurization waste liquid per year.
The route is:
1. Pretreatment process: The sulfur foam liquid is sent to a horizontal centrifuge for solid-liquid separation, the filtrate enters the filtrate tank, the sulfur paste enters the slurry tank, and then is sent to the incineration process by the slurry transfer pump.
- Incineration process: After the sulfur slurry is atomized, it is sent to the incinerator to generate SO2 process gas, and enters the waste heat boiler for waste heat recovery. The process gas is cooled and then enters the purification process.
- Purification process: The process gas passes through the humidification tower, the cooling tower, the washing tower and the electric mist eliminator in turn, respectively humidifying and cooling the process gas, cooling the gas, washing, and then entering the dry suction process.
- Dry suction process: The drying of the furnace gas is achieved by contacting the gas with concentrated sulfuric acid. After SO2 is converted into SO3, it enters the absorption tower and absorbs SO3 with concentrated sulfuric acid to produce sulfuric acid of different specifications.
- Conversion process: The process gas enters the process gas heat exchanger after being pressurized by the fan, and reaches the SO2 converter after reaching 420 ° C to 450 ° C. Under the action of the catalyst, the SO 2 is converted into SO 3 .
- The tail suction process: the tail gas enters the tail gas washing tower, and a small amount of SO2, NOX and sulfuric acid mist are absorbed by the steamed ammonia wastewater, and the tail gas from the tail gas washing tower enters the electric mist eliminator to further capture the acid mist entrained in the tail gas. After passing the test, it is discharged into the atmosphere through a 30-meter-high chimney.
The main equipments are: horizontal centrifuge, filtrate
tank, filtrate pump, slurry tank, incinerator, waste heat boiler, drying tower,
absorption tower, humidification tower, cooling tower, washing tower, exhaust
gas cleaning tower, sulfur dioxide blower, etc.
EIA unit: Henan Metallurgical Research Institute Co., Ltd.
EIA content: Environmental impact assessment mainly analyzes the project's
pollution production and sewage discharge, predicts the impact of pollution,
evaluates whether pollution control measures are feasible, the clean production
level of the project, the rationality analysis of the site and the total
control target, according to the project The profile proposes a corresponding
monitoring management plan.
Request for comments: Regarding the environmental impact of the project, if the
public has any questions, they can make corresponding comments and suggestions.
The main concern is whether you agree with the site selection, the views on the
main environmental issues brought about during the construction project and
after the project, and your opinions and suggestions on the environmental
protection measures to mitigate the impact, which will be fully considered in
the EIA. To your valuable comments and suggestions. The publicity period is 10
working days.
Public comments channels
The public can feedback the opinions to Henan Qingshuiyuan Technology Co., Ltd. or Henan Metallurgical Research Institute Co., Ltd. by telephone or fax.
Contact information: Henan Jinma Energy Co., Ltd. Henan Metallurgical Research Institute Co., Ltd
Contact: Chen Gong Contact: Construction
Telephone and Fax: 0391-6038009 / 0371-63828676