News Date:2015-10-16 13:38:38
1. Development Status:
In 1995, granulated blast furnace slag is mainly used for cement admixture. Slag is difficult to grinding, so it is less in cement admixture, generally not more than 30%.
1995-2000, foreign powdered slag impact on the durability of high performance concrete, which causes the attention of scholars and emulate. Slag powder as a high admixture concrete gradually promotes the use in construction.
After 2000, energy-saving technologies and economic studies slag powder application technology grinding equipment development, the majority of cement and concrete mixing stations companies recognize that the grinding fineness slag powder should be controlled 450㎡ / kg . Various grinding devices are able to produce slag powder for different needs market, and obtain the corresponding economic benefits.
Xinxiang Great Wall machinery independent D&R manufacture and launch the first slag vertical mill in 2004. After 10 years of continuous innovation and development and practice of summary, the current production of slag vertical mill has caught up with the international level, becoming true slag powder business areas.
(1) Construction scale: 600,000 t/a GGBS production line. Blast furnace gas as drying heat source: Slag powder is mainly used in cement and various commercial concrete mixing station for mixing materials, and export cement plant or the surrounding area to commercial concrete mixing station.
(2) Production Method: GGBS production line using Great Wall Machinery GRMS46.41 vertical slag grinding mill, we determine the work system according to market demand, 10 months, working 28 days per month, annual Production powdered slag 600,000 tons.
3. Main equipment
Vertical mill is mainly equipment for Slag grinding; Great Wall produces slag vertical mill GRMS46.41. Vertical mill has the following technology advantages when slag powder quality has reached GB / T18046-2000:
(1) Vertical mill power consumption to save more than 50%;
(2) Resistant materials consumption of vertical mill is lower 130 times than the ball milling system;
(3) Using drying and grinding technology process, which reduce construction investment, simplifying the process, reducing the fuel consumption, has significant energy-efficient effect, it is a new environmentally friendly green technology policies meeting global environmental accord.
Currently, the project has been successfully completed,GGBS production line not only bring huge economic benefits to the company, but also has a double significance of energy conservation.
