The single cartridge cooling machine with 3.8m/4.2m x 42m is a newly developed large single cartridge cooling machine. The development and overall design of this machine have been successful, and it can meet the supporting requirements of 3.3m * 50m pre-decomposition kiln. However, from the perspective of use, there are still some problems, such as the design of the internal material lifting device, the heat insulation protection measures of the cylinder body in the high-temperature hopper area and the sealing design of the feeding end. The first two aspects have achieved good results through the cooperative transformation of factories. As for the feed end seal, there are many problems and difficulties in the field transformation. Through several years of observation and summary, combined with its design features, some experience is available for reference by colleagues so as to better solve the problem of leakage.
Introduction to the structure of feed seal
The feed seal structure can be divided into four parts:(1) Radial graphite block seal is adopted outside the simplified body. The graphite block relies on the circumferential steel rope and the weight at one end of the steel rope suspension to generate radial tension force, and the automatic fastening plays a sealing role on the outer circle of the simplified body.