The dust problem faced by the No. 1 steelmaking plant of Nanjing Iron and Steel Group Co., Ltd. is that the scattered dust generated in the process of converter smelting (adding scrap, mixing molten iron, blowing, etc.) and material transportation settles on the multi-layer platform in the converter area. Due to the difficulty of cleaning, the manual cleaning cycle is long and accumulated over time, and thick dust is accumulated on the 3 ~ 7 floors, It will have an adverse impact on the production environment and equipment maintenance of the steelmaking workshop, and cause great harm to the personnel working in the working environment for a long time. It is not only time-consuming and laborious to arrange labor for ash cleaning in the steel plant every year, but also the traditional cleaning method and secondary dust generation increase the difficulty of personnel's work.
Our technical team designed, produced and implemented CVP series vacuum suction system for dust control in key floors from converter 3F to converter 7f5 in combination with the situation of the workshop of Nangang and the standards of relevant national policies. The use of vacuum centralized dust collection system can reduce the labor intensity of workers, facilitate the timely cleaning of dust on the 3 ~ 7 floors of converter workshop, and solve the problems of accumulation and dust.
According to the process characteristics of converter smelting area and material transportation area in the first steelmaking plant of Nanjing Iron and Steel Co., Ltd., Sinovac Watson environmental protection has the following advantages and characteristics for CVP series vacuum centralized dust collection system
1. Fully implement national and industrial laws, regulations and standards to achieve the "environmental protection, economy and practicality" three excellent design;
2. On the premise of ensuring the safety and reliability of the existing plant structure, design vacuum suction facilities;
3. The division and system configuration of dust collection equipment are reasonable, the process flow is smooth, and the energy-saving and consumption reduction technology is adopted. Under the condition of meeting the process requirements, the equipment investment is minimized, the operation cost is reduced, the energy is saved, the manual cleaning intensity is reduced, and the workshop environment is improved;
4. According to the dust nature of the workshop, equipment, pipes and cleaning tools made of corrosion-resistant materials shall be adopted to improve the dust removal efficiency of the system and the service life of the equipment;
5. The system is designed with large suction force. The dust particle size generated in the workshop is uneven and the amount of dust is large. The large suction force design can help customers quickly deal with the accumulated dust
6. Dust collection cart design: due to the wide dust dispersion area, in order to facilitate the operators to work with dust collection tools, the dust collection cart is designed to filter large particle dust and avoid blocking the dust collection port.
Vacuum cleaning project of No. 1 steelmaking plant of Nangang
Evaluation of the person in charge of the converter smelting workshop of the first steelmaking plant of Nanjing Iron and Steel Co., Ltd. on the use of the equipment:
The cooperation with Shanghai Watson environmental protection is pleasant. We are very satisfied with the overall service of Sinovac. After layers of discussion, the final scheme is established, and the staff are very serious at every step from design to construction. After the equipment was successfully put into operation, the workshop staff reported that the cleaning work was much easier than before, and the cleaning intensity was very high, which greatly shortened the working hours and reduced the working intensity.
