FIELD: textiles, paper.
SUBSTANCE: method of delignification of wood chips is carried out in the digester during turbulisation of the pulp. For this a limited along the length fragment of the area of the brewing process in the digester is chosen, which is over the entire cross section of the stream of pulp is divided into a series of parallel and independent streams, in each of which turbulisation is created. The latter is carried out by periodic changes in the volume of each of the streams, which is implemented due to changes in cross-sectional area of these streams.
EFFECT: significant acceleration of delignification process, decrease in temperature of technological zones and pressure in them, and the reduced specific energy consumption of pulping, increased productivity of plants, weight and size characteristics of the digester are reduced several times.
3 cl, 1 dwg, 1 ex
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