Shaanxi Ever-Power Drive Shaft Co., Ltd. Environmental Information Disclosure

XNUMX. Basic Information
Unit name: Shaanxi Ever-Power Drive Shaft Co., Ltd.
Organization code: 91610000766315348J
Legal representative: Xu Yong
Production address: Lantian Industrial Park, Economic Development Zone, Xi'an City, Shaanxi Province
Industry: Auto parts and accessories manufacturing 
Contact number: 029-82721355
Main product: drive shaft
Production scale: The production scale is an annual output of 36 heavy-duty vehicle drive shafts

XNUMX. Pollutant discharge information
1. Exhaust gas
The waste gas is mainly process waste gas and canteen waste gas.Process waste gas is mainly welding fume generated during welding in the assembly process; hot water heater, moisture drying furnace, spray drying process heater combustion exhaust gas, fuel is natural gas; coating process leveling, painting, and drying are generated Of organic waste gas.
焊接烟尘经集气+袋式除尘器处理后由排气筒（P1）排放。前处理工序燃气热水炉、水分烘干炉燃烧废气经低氮燃烧后由排气筒（P2）排放。3台燃气加热装置燃烧废气经低氮燃烧后由排气筒（P3）排放。涂装工序流平、喷漆产生的有机废气（挥发性有机物、甲苯、二甲苯、颗粒物）集气罩收集后经“水喷淋+低温等离子光氧+活性炭吸附”处理后由排气筒（P4）排放。涂装工序烘干产生的有机废气（挥发性有机物、甲苯、二甲苯）经“低温等离子光氧+活性炭吸附”处理后由排气筒（P5）排放。排气筒高度均为15m。
焊接工序无组织排放烟尘，颗粒物浓度执行《大气污染物综合排放标准》（GB16297-1996）中无组织排放监控浓度限值1mg/m3。涂装工序无组织排放的有机废气浓度执行《挥发性有机物排放控制标准》（DB/T1061-2017）企业边界监控点浓度限值（甲苯0.3mg/m3、二甲苯0.3mg/m3、非甲烷总烃3mg/m3）。
This unit has 6 exhaust outlets, P4 and P5 are the main outlets, P1, P2, P3, and P6 are the general outlets.In accordance with the requirements of the "Technical Specification HJ 971-2018" for pollutants at the main discharge outlets, the paint production unit of the automobile manufacturing industry's pollutant discharge unit shall specify the permitted emission of volatile organic compounds.Therefore, the pollutants applied for the permitted emission amount are volatile organic compounds, and other pollutants are items with the permitted emission concentration.
The organization’s application for the organic emission of exhaust gas in this pollutant discharge permit is shown in the following table:

2. Wastewater
The production wastewater produced by this unit is mainly spray system drainage, degreasing wastewater, cleaning wastewater after degreasing, and cleaning wastewater after silane. The domestic sewage after oil separation and septic tank treatment is discharged into the comprehensive sewage treatment station in the plant area. After coagulation sedimentation + air flotation + quartz sand filtration + hydrolysis acidification + contact oxidation" process, it meets the "Integrated Wastewater Discharge Standard" (GB8978-1996) three-level standard and "Sewage Discharged into Urban Sewer Water Quality Standard" (GB/T31962 -2015) After the B-level standard, it will be discharged into the Lantian County Sewage Treatment Plant through the sewage pipe network of the park.
The wastewater of this unit has a total discharge outlet, which is the main discharge outlet.According to "Technical Specification HJ 1-971", the types of pollutants permitted to be discharged (chemical oxygen demand, ammonia nitrogen), and the permitted discharge concentration of other pollutants.
The discharge concentration of this unit's application for the organized discharge of wastewater in this pollutant discharge permit is shown in the following table:

3. Solid waste
The solid waste produced by this unit is mainly waste paint barrels, waste paint residue, waste activated carbon, waste welding wire, sewage treatment station sludge and domestic garbage.
The waste welding wire is collected and stored in the general solid waste temporary storage room for external sale.After dewatering, the sludge is sent to the designated landfill, and the domestic garbage is collected and sent to the sanitation department for unified disposal.Hazardous wastes are temporarily stored in the temporary storage room for hazardous wastes and are entrusted to a qualified unit for disposal.