INSTALLATION STRUCTURE FOR AIR SLEEVE TUBE OF FILTER BED

摘要

PURPOSE: An installation structure for the sleeve pipe of a filtering bed is provided to improve the convenience of pipe-installation by minimizing the flow of a sleeve pipe in a concrete injecting process. CONSTITUTION: The sleeve pipe installing structure of a filtering bed(110) is divided by a partition wall(120). A waterway(130) is formed for a water draining process and a back-washing process. An air supplying pipe(140) is installed in the waterway, and compressed air is supplied to the air supplying pipe. A plurality of branch pipes(141) expanded from the air supplying pipe passes through the partition wall and is connected with a perforated block(112) in the filtering bed.