Application of novel back washing technology in blast furnace slag flushing filter pools

• Main Authors: WANG YANHAI, HE QISHU, ZHANG JIANYI, LI ZHENWEI
• Format: Patent
• Language: Chinese; English
• Published: 13.11.2018
• Subjects: CHEMISTRY; MANUFACTURE OF IRON OR STEEL; METALLURGY; METALLURGY OF IRON

The invention discloses application of a novel back washing technology in blast furnace slag flushing filter pools. The technological process of the application comprises the steps that back washing branch pipes are led out of water outlet main pipes of hot water pumps and communicate with the bottom filter pools, and back washing electric valves are arranged on the back washing branch pipes and control the back washing branch pipes to open and close; and when one bottom filter pool needs to be subjected to back washing operation, the hot water pumps and cooling tower water filling valves of acooling tower are closed, the back washing electric valve corresponding to the bottom filter pool which needs to be subjected to the back washing operation is opened, the bottom filter pool to be backwashed is subjected to the back washing operation by use of filtering water of the bottom filter pool which normally works, the back washing operation is accomplished, the back washing electric valveis closed, the cooling to