Dandong tonghe high-end calcium oxide engineering project, totally contracted by Chaoyang Heavy Machinery Installation Co., Ltd. is ranged as the important project in Dandong City, this project includes 5 production lines, separately they are: raw material crushing production line for limestone treatment with annually capacity at 1,500,000 tons, active lime rotary kiln production line with daily capacity at 800 tons, lime vertical rotary production line with daily capacity at 1800 tons,quick lime powder milling production line with annual production capacity at 500.000 tons, briquette production line with annual production capacity at 150.000 tons, after the project has reached the production, it will produce 264,000 tons of active lime and 396,000 tons of lime annually.