Ningxia Zhongning Zinc Oxide Production Line Project
800TPD (2 Lines), Ø3.3×54m Rotary Kiln
Ningxia
Project Location: Ningxia, China
Company Name: Zhongning Ninghua Industry and Trade Co., Ltd.
Date: June, 2017
Raw Material: Lead refining slag, zinc mud, steel soot, zinc ore etc
Capacity: 800TPD (2 Lines), Ø3.3×54m Rotary Kiln
Emission Concentration: ≤30mg/Nm³
Project Background:
Zhongning Ninghua Industry and Trade Co., Ltd. is located in Shikong Town, Zhongning County, Zhongwei City, Ningxia Hui Autonomous Region. It was established in June 2007. It is the largest local zinc resource comprehensive recycling company. The company manages comprehensive energy consumption through improvement Indicators and physical labor productivity rank among the forefront of the domestic industry, and safety, environmental protection and various process indicators are at the domestic advanced level. Its use of lead-water slag to smelt secondary zinc oxide project is a solid waste treatment project generated by the production line, so it not only requires equipment safety and reliability, but also requires an energy-saving and environmentally friendly process system and advanced automation control system for the entire equipment.
Through many early technical communication with various manufacturers, repeated exchanges on equipment technology and automation control technology finally determined the process technology plan with Zhengzhou mine as the standard as a unified platform. In business negotiations, ZK Corp also used a complete scope of supply and the detailed production, installation, commissioning, and after-sales guarantee program won the customer's approval, and Zheng Mine was finally determined as the supplier of the project.
This project is a newly built project. The sub-zinc oxide industry is a small industry without professional design institutes to sort out the various parameters of the calculation system, and can only be optimized by the existing production parameters and problems. Because the raw materials and products are in powder form, on-site environmental management is very difficult. In addition, the production process of sub-zinc oxide requires a large amount of air to be blown into the kiln head. The unbalanced wind pressure of the entire production line will cause positive pressure smoke at the kiln head. Therefore, after careful calculation by ZK Corp engineers, the system is determined by various data calculations. The parameters of the fan.
Since this project is a new project, the customer's terrain conditions are high and the area is sufficient, so the engineer decided to put the raw material batching and granulation system on a low platform. Put the dust collection system on the high platform, realize the partition management, and greatly improve the on-site environment, making it the cleanest factory for similar projects in China.
After 3 months of installation, commissioning, and training, the customer’s workers can operate the system equipment proficiently. Under the patient training and explanation of the Zhengzhou mine’s after-sales engineers, the workers recognize the reliability and safety of the equipment very much. The industry problem that turned out to be the most worried about the smoke from the kiln head was also completely resolved because of the reasonable parameters of the kiln tail fan!
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