PROCESS FOR PROTECTION OF THE EXPORT DEVICE CONTINUOUSLY WORKING PULP COOKER

摘要

The invention relates to a method for protecting the discharge device of continuously operating pulp digester. The invention has the object to detect by introducing a suitable measuring the pressure and Konsistenzverhaeltnisse on Kocheraustrag and to develop a method for protecting the discharge from mechanical damage. According to the invention, the object is achieved in that a measurement of the pressure difference between the blow pipe and the cooking interior is made at the level of the side nozzles for feeding the countercurrent washing machine and when an upper pressure difference limit value is exceeded a locking circuit comes into force, which acts on one or more quick-acting valves. The differential pressure measurement above the digester bottom provides a sensitive and reliable measuring point for the discharge rates at the bottom of the digester. Fig. 2 shows the inventive extension of the technological process.