Method for autoclave evacuation for autogenous porous body or sand-lime brick production, autoclave system and use of an injector jet pump

摘要

The invention relates to an autoclave plant, a process for autoclave evacuation, an injector jet pump for an autoclave plant and hot-steam-hardened sand-lime bricks, which have been subjected to a vacuum during production. Both in the production of aerated concrete bodies as well as in the manufacture of sand-lime bricks is required to empty for each batch of reaction vessel by means of a vacuum device. Since today the reaction vessels usually have a capacity of 100 m SUP 3 / SUP to 400 m SUP 3 / SUP, considerable amounts of air or hot steam are to be moved. For this purpose, water ring pumps have been used, which has proven to be disadvantageous. In order to provide an autoclave plant and a process for autoclave evacuation, by which the operating, investment and maintenance costs in the manufacture of building materials can be reduced, an injector jet pump is provided according to the invention as a vacuum device.