Henan Jinhang Environmental Protection Technology Co., Ltd. has rolled out the newly upgraded scale sludge binder (Model JH-300). Leveraging an innovative formula of high-molecular polymers, this product breaks through the bottlenecks of traditional processes, providing an efficient solution for the resource utilization of solid waste in the iron and steel industry. Currently, it has been applied on a large scale in a number of steel plants.
Through formula optimization, this upgraded product achieves a leap in key performance:
- Bonding Strength: With an addition amount of only 1-3%, the wet balls can withstand a 2-meter drop without breaking. After natural drying, the cold strength exceeds 2000 Newtons, and the curing strength can reach more than 80 kg within 12 hours, fully meeting the requirements for smelting and recharging into the furnace.
- Material Adaptability: Aiming at the problem of complex raw materials in the iron and steel industry, it can be adapted to various materials such as converter dust, scale, and ferromanganese silicon powder. In particular, it can inhibit the expansion and pulverization of calcium oxide-containing raw materials, ensuring molding stability.
- Environmental Performance: It has been upgraded simultaneously. The formula contains no harmful substances such as sulfur, phosphorus, and arsenic, which can be completely decomposed without residue during high-temperature smelting. Moreover, it adopts a dry powder direct mixing process, eliminating the need for drying pretreatment, which reduces energy consumption while avoiding secondary pollution.
According to the Technology Department of Henan Jinhang, this binder has been successfully applied in production scenarios such as sludge cold-pressed balls and scale mixed pellets. The initial ball formation rate of high-iron materials (TFE > 65%) exceeds 98%, significantly reducing transportation loss rate. Data from the application in a large steel plant shows that after using this product, the solid waste utilization rate has increased to over 95%, the per-ton treatment cost has decreased by 12%, and the drying energy consumption has reduced by 15%. Its weather resistance advantage is also prominent: after curing, it can withstand high temperatures above 300°C, and has moisture resistance and crack resistance, solving the problem of pulverization of traditional pellets during storage.
As a technology-based small and medium-sized enterprise, Henan Jinhang relies on a R&D team led by postdoctoral researchers (technical personnel account for more than 25%). It can provide customers with customized services such as raw material adaptability tests and formula optimization, and also support free sample testing. Yuan Mingsheng, General Manager of the company, said: “The upgraded product not only enhances the core bonding function, but also achieves a win-win situation of environmental protection and efficiency through process simplification, helping the iron and steel industry achieve low-carbon transformation.”
At present, this binder has passed the national environmental protection standard certification, and its related technologies are supported by 3 patents. It is gradually expanding its application coverage in the field of metallurgical solid waste treatment.
