AN AUTOCLAVE, A METHOD FOR DRAINING AN AUTOCLAVE AND USE OF A CONNECTION LINE

摘要

The invention relates to an autoclave for leaching and oxidising ores comprises an inlet for receiving slurries of ore into the autoclave, agitation means for agitating slurries of ore in the autoclave and an outlet for removing at least partially leached slurries of ore from the autoclave. The autoclave further comprises a supply line in a fluid communication with the autoclave for adding liquid into the autoclave, a drain line in a fluid communication with the autoclave for draining the autoclave, and a connection line connected to the autoclave and being in a fluid communication with the autoclave. The connection line is in a fluid communication also with the supply line and with the drain line such that the supply line and the drain line are connected to the autoclave through the same connection line. The invention relates also to a method for draining an autoclave and a use of a connection line in an autoclave.