Overview

Hebei Xinji Gangxin Cement Plant and Xinxiang Great Wall Machinery have maintained close partnership all the time. Recently, the annual output of 600,000 tons of GGBFS production line, which signed with the Great Wall Machinery, has formally put into production. This project is beneficial to ecological environment protection of the Beijing-Tianjin-Hebei region. It not only gains good economic benefit, but also gets good social benefit.

Configuration

This production line equips with the powerful host that is GRMS46.41 slag vertical mill, of which the annual output is 600,000 tons, and has been treated as another case of general contracting turnkey projects designed and constructed by Xinxiang Great Wall Machinery.

 Analysis

The completion of this project achieves cyclic utilization of industrial waste residue, particularly, reduces CO2 emissions in producing the same amount of cement, and meets industrial policy of energy saving and emission reduction in the national low-carbon economy and circular economy. 

The project effectively reduces the power consumption by 20-50% in the process of production, assures that the whole system power consumption is less than 40 KWH/t. At the same time, the fineness of GGBFS is 4200 ~ 5000 g/cm2. Thus, it can reasonably control the fineness of slag and cement and suitable proportion of slag and cement. That is to say, qualified GGBFS is good for making high quality cement products, and brings more profits for the company.

The highlight of this project is the double recycling.

• First, slag discharged from their own steel plant can be effectively reprocessed, which can alleviate the environmental pollution. Meantime, the slag after grinding can be used for cement production, which reduces cost.

• Second, the hot air stove of this GGBFS production line makes use of blast furnace gas that steel plant emission in the process of iron-making. The blast furnace slag has strong toxicity and low calorific value. It usually discharges into the air. However, the use of blast furnace gas in this GGBFS production line recycles the waste gas and alleviates the environmental pollution.