METHOD OF SUPPLYING THE SEALING MEDIUM INTO THE ALKALI LIQUID FILTER AND THE ALKALI LIQUID FILTER

摘要

FIELD: technological processes.;SUBSTANCE: method and alkali liquor filter are considered. Method of supplying a sealing medium into the seal of an alkali liquor filter in the cellulose alkalizing unit, in which the seal is designed with the possibility to seal the filter shaft, and wherein the seal comprises the sealing bushing, which is provided with the inner sealing area that is formed by an inner sealing element and the outer sealing member and the space between them, to which the first channel of the sealing medium for supplying the sealing medium is fed. According to the invention, an alkaline liquid, a gas or a mixture thereof are used as a sealing medium, and the alkaline liquid or gas does not substantially dilute the alkali content of the filtered alkali liquor, and the leakage of the alkali-containing sealing liquid and/or gas from the liquor filter is prevented by means of an external seal pair.;EFFECT: method of supplying the sealing medium to the alkali liquor filter and the alkali liquor filter are provided.;14 cl, 2 dwg