Results: (1) Coal consumption reduced by 15%; (2) Free CaO pass rate increased from 80% to 99%.
Case 2
Shandong Pingyi Zhonglian Cement Plant
5,000 t/d cement production line, 2020-09;
Results: (1) APC in-service rate above 98%; (2) Precalciner temperature and kiln hood negative-pressure fluctuation reduced by 60%; (3) Coal savings of 2.09%, power savings of 2.76%; (4) Clinker output increased by 1.36%.
Case 3
Shaanxi Beiyuan Chemical Cement Plant
2,500 t/d cement production line, 2020-11;
Results: (1) APC in-service rate above 98%; (2) Precalciner temperature fluctuation reduced by 60%; (3) Kiln hood negative-pressure fluctuation reduced by 75%; (4) Coal savings of 6.25%, power savings of 2.07%.
Results: (1) APC in-service rate above 98%; (2) Calciner temperature fluctuation reduced by 50%; (3) Kiln hood negative-pressure fluctuation reduced by 75%; (4) Controlled-variable fluctuation across all mills reduced by 40–70%; (5) Kiln line coal savings of 2.68%, power savings of 0.88%; (6) Cement mill power savings of 5.89%, output increased by 4.78%.
Case 5
Changshan County Jiangshan Hu Cement Co., Ltd.
5,000 t/d cement production line, 2026-01;
Results: (1) APC in-service rate above 98%; (2) Calciner temperature fluctuation reduced by 52%; (3) Tail-coal operation frequency cut to 1/10; (4) Kiln hood negative-pressure fluctuation reduced by 10%; (5) Average negative pressure increased by 7.28 Pa; (6) Head exhaust fan operation frequency reduced by 95%; (7) Controlled-variable fluctuation across all mills reduced by 50–90%; (8) Coal mill and raw meal mill operation frequency reduced by 90%.
