1982 started construction of the first production line with a daily output of 4,000 tons. 10 years later, 1992 Tongling cement plant construction headquarters was established, and 1993 officially started construction. 1In September, 1995, the provincial party committee and government decided to set up Tongling Conch Co., Ltd. with Ningguo Cement Plant as the holding company, which was completed and put into operation in July, 1996. This is the first time that China's building materials industry has used the World Bank loan project. The main equipment of the production line is imported from Smith Company in Denmark, with an designed annual output of 700,000 tons of cement and 600,000 tons of commercial clinker. The daily production capacity exceeds 4500 tons.
Article 2 is a domestic demonstration production line with a daily output of 5,000 tons. Construction started in June 5438+February 2000, and was completed and put into operation in April 2002. This is the first step for Conch Group to further develop the low-investment domestic production line with a daily output of 5,000 tons in order to speed up the structural adjustment of the cement industry. On the basis of technical exchanges with relevant units at home and abroad and cooperation with equipment manufacturers and design and research units, the raw meal preparation system, calciner and cooling system of vertical mill are mainly developed. The daily production capacity of the production line exceeds 5500 tons.
Article 3 and Article 4 are production lines with a daily output of 10000 tons, which started construction in February 2003 and were completed and put into operation in June 2004 and 10 respectively. The technology and equipment of these two 10,000-ton lines represent the most advanced level of cement industry in the world today. Tongling Conch Line 3 is the first 10,000-ton line in China and the fourth in the world.
Article 5 The production line with daily output 12000 tons of cement clinker was put into operation on February 30, 2065. At present, it is the largest new dry cement clinker production line in the world. At the same time, the 18000kW waste heat power generation project matching with the 12000t/d cement clinker production line is constructed simultaneously with the production line.