RU96111830A - DEVICE FOR PUMPING AND PROCESSING WET FIBROUS MASS - Google Patents

Claims (4)

1. Device for pumping and processing wet pulp, comprising a housing equipped with a receiving hopper, auger, dispersant coaxially mounted on the shaft of the screw, and a pipe for removing the treated pulp, characterized in that the casing and the coaxially mounted screw are arranged vertically therein, the auger has two zones — the wet fibrous loading zone, made in the form of a truncated cone, and the wet fibrous compaction zone adjacent to the smallest turn of the loading zone, the diameter of which turns is the same It gives the smallest diameter of the coil, wherein the diameter of the largest and smallest windings loading area are related as follows
d $\genfrac{}{}{0ex}{}{\text{2}}{\text{max}}$ ≤ d $\genfrac{}{}{0ex}{}{\text{2}}{\text{min}}$ (c ₁ / c ₂ ),
where d _max is the diameter of the largest turn of the screw;
d _min is the diameter of the smallest turn of the screw;
c ₁ is the specific volume of pulp at the entrance to the loading zone of the screw;
c ₂ is the specific volume of pulp at the outlet of the screw compaction zone,
and the housing is additionally equipped with a mixing chamber located coaxially with the screw shaft at a distance from its last turn so that the dispersant is located inside the mixing chamber at its entrance, and the mixing chamber is equipped with a pipe for removing the treated pulp and means for supplying a transport agent, and if necessary, means for supplying superheated steam and / or means for supplying a chemical reagent.  2. The device according to claim 1, characterized in that the means for supplying the transport agent is made in the form of a hollow annular chamber equipped with inlet and outlet openings and located around the disperser concentrically to the shaft of the screw.  3. The device according to claim 1 or 2, characterized in that the means for supplying superheated steam is made in the form of a hollow annular chamber equipped with inlet and outlet openings and located around the disperser concentrically to the shaft of the screw.  4. The device according to paragraphs. 1 to 3, characterized in that the means for supplying the chemical reagent is made in the form of a hollow annular chamber equipped with inlet and outlet openings and located around the dispersant concentrically to the screw shaft.