On March 9, 2007, Nanjing Xili Group held a groundbreaking ceremony for the drying and grinding equipment base in the Industrial Development Zone along the Yangtze River. Nanjing Xuanli Group expands 40 acres on the basis of the original production base, reinvests 50 million yuan, expands 15,000 square meters of industrial plant, new 8 meters vertical lathe, 8 meters hobbing machine, Ф6m x 16m barrel lathe, 120 tons of traffic and other large equipment .
The Nanjing Shengli Group Drying and Grinding Base will focus on the production of large-scale mills and rotary dryers. In the past, the cement quality of China's small and medium-sized cement plants did not go up. It was not the poor quality of cement clinker, but the mill was too small and too short. Most of the cement mills were short-cut, small mills with a depth of 2.2m×6.5(7)m. The impact energy of the steel ball is not enough. In addition, the residence time of the material in the mill is too short, the grinding machine is not fine, and the specific surface area of ​​the cement is not. In particular, after the implementation of new cement standards, the control of fineness of cement has become more stringent. Now that there are conditions for small and medium-sized cement companies, new mills and grinding mills are being newly added. More than 800 short-grind mills and small mills in China will enter a new era of continuous renewal. . The expansion of the Nanjing Xili Group will be based on the specification of the mill at Ф3.8m and Ф4.2m, mainly for the annual production of 600,000 tons and 1.5 million tons of cement grinding station. The specifications of the new rotary dryers are located at Ф3m, Ф3.3m, Ф3.8m, and are mainly used for the production of fine powder mills such as fly ash and slag. The new type of drying machine developed by Nanjing Xili Group adopts a unique large gear and overall body structure to ensure the concentricity and completely solve the problems of the traditional dryer and the whole body flexible connection, installation difficulties, poor concentricity, vibration, gear wear and other issues; The use of a variety of circumferential riser arrangement, adjustable drying time, with high heat exchange characteristics. By supporting the rapid high-temperature boiling furnace and dryer insulation materials, dryer dedicated blowing large bag filter, dryer output will be more than doubled, Ф 2.2m × 14m dryer drying slag Taiwan production will reach 20- 25t/h, and the activity of drying materials is not affected, it is the best equipment for drying slag. Since the vertical dryer uses a countercurrent process, already dried materials must be baked at high temperatures to exit the machine. Slag, fly ash, etc. will undergo chemical changes at high temperatures. The activity will be reduced by 10% to 15%. The dryer dries the slag, fly ash and other active materials.
Nanjing Xili Group is prepared to build a drying and grinding equipment base as an opportunity to further strengthen management, increase technological innovation, and plans to use 3-5 years to become a major manufacturing and production base for cement drying and grinding equipment in China. one.
The Nanjing Shengli Group Drying and Grinding Base will focus on the production of large-scale mills and rotary dryers. In the past, the cement quality of China's small and medium-sized cement plants did not go up. It was not the poor quality of cement clinker, but the mill was too small and too short. Most of the cement mills were short-cut, small mills with a depth of 2.2m×6.5(7)m. The impact energy of the steel ball is not enough. In addition, the residence time of the material in the mill is too short, the grinding machine is not fine, and the specific surface area of ​​the cement is not. In particular, after the implementation of new cement standards, the control of fineness of cement has become more stringent. Now that there are conditions for small and medium-sized cement companies, new mills and grinding mills are being newly added. More than 800 short-grind mills and small mills in China will enter a new era of continuous renewal. . The expansion of the Nanjing Xili Group will be based on the specification of the mill at Ф3.8m and Ф4.2m, mainly for the annual production of 600,000 tons and 1.5 million tons of cement grinding station. The specifications of the new rotary dryers are located at Ф3m, Ф3.3m, Ф3.8m, and are mainly used for the production of fine powder mills such as fly ash and slag. The new type of drying machine developed by Nanjing Xili Group adopts a unique large gear and overall body structure to ensure the concentricity and completely solve the problems of the traditional dryer and the whole body flexible connection, installation difficulties, poor concentricity, vibration, gear wear and other issues; The use of a variety of circumferential riser arrangement, adjustable drying time, with high heat exchange characteristics. By supporting the rapid high-temperature boiling furnace and dryer insulation materials, dryer dedicated blowing large bag filter, dryer output will be more than doubled, Ф 2.2m × 14m dryer drying slag Taiwan production will reach 20- 25t/h, and the activity of drying materials is not affected, it is the best equipment for drying slag. Since the vertical dryer uses a countercurrent process, already dried materials must be baked at high temperatures to exit the machine. Slag, fly ash, etc. will undergo chemical changes at high temperatures. The activity will be reduced by 10% to 15%. The dryer dries the slag, fly ash and other active materials.
Nanjing Xili Group is prepared to build a drying and grinding equipment base as an opportunity to further strengthen management, increase technological innovation, and plans to use 3-5 years to become a major manufacturing and production base for cement drying and grinding equipment in China. one.
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