| 摘要 |
<p>METHOD FOR SECONDARY HEAT RECOVERY IN BATCHWISE CELLULOSE DIGESTING of The Disclosure There is disclosed a method for secondary heat recovery in batchwise cellulose digesting in digesters, the cooking liquor being conducted, during the final stage of the digesting cycle, to an equalizing tank standing under pressure. The novel feature of this method is, that cooking liquor or steam, expanded from cooking liquor is conducted, under flow control, from the equalizing tank for utilizing in the digesting process, in auxiliary processes or in heat recovery aggregates for internal use of its heat content. In one preferred embodiment of the method, cooking liquor is conducted from the equalizing tank to a first flash cyclone, from where there is discharged a first steam flow and a first liquid flow, which is fed to a second flash cyclone, from where there is discharged a second steam flow and a second liquid flow.</p> |
