The top of the clinker warehouse in a 5 000t/d cement clinker production line has problems such as poor sealing, large internal dust, and high environmental temperature. There are problems with the two sides and bottom of the inclined zipper machine corridor, such as inadequate sealing, serious material leakage and ash emission. The renovation was carried out by installing a dust collector at the discharge port of the inclined zipper machine, sealing the kiln head inclined zipper machine corridor and the outdoor area of the clinker warehouse roof with color steel tiles and structural glue, and installing a conical aggregate hopper, rod valve, and receiving hopper at the end of the inclined zipper machine corridor above the ground level.  After the renovation, the dust and leakage control effect of the top of the clinker warehouse and the inclined zipper machine is good, the environmental temperature of the top of the clinker warehouse is significantly reduced, and the equipment failure rate is greatly reduced.