SU1646569A1 - Device for charging and moistening solids in countercurrent towers - Google Patents

Abstract

The invention relates to devices for loading and wetting fine-grained or porous solids, or substances with a wide grain-size composition, the specific mass of which is greater than the specific weight of the treatment liquid, and allows for the complete wetting of the sediment of solid particles and the removal of the liquid almost without turbidity. The device includes a housing, in the cylindrical upper part of which a drainage device is placed, a wetting chamber with a stirrer, which is made funnel-shaped at the bottom with a thickening 4, cylinders 6 with funnel-shaped devices 7, which form the outer lightening zone 14 with the outer housing 23, and 2 - an internal zone of clarification 13, and among themselves - several internal zones of clarification, the cross section of which is constant or narrowed. 6 hp ff, 3 sludge

Description

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Claims (7)

Claim 1. A device for loading and wetting solids in countercurrent columns, consisting of a housing, in the cylindrical upper part of which there is a drain device with drain cut-outs or through holes, a wetting chamber with a mixer located concentrically to the housing, characterized in that the wetting chamber is made below the funnel with a thickening 4, and the device is equipped with one or more cylinders 6 with funnel-shaped devices 7, forming with the outer casing 23 an external clarification zone 14, and with the casing wetting measures 2 — the inner clarification zone 13. and between each other — several internal clarification zones, the cross section of which is constant or tapers, the inclination β of the inner funnel-shaped device 7 is larger than the internal angle of friction of the solid, and the wetting chamber 2 is equipped with an inlet pipe 29 for wetting fluid and inlet 1 for solids. 2. The device according to claim 1, with the fact that the drain trough 21 through the branch pipe 27, the pump 12, the connected pipe 11 and the inlet pipe 29 is connected to the wetting chamber 2. 3. The device according to claims 1 and 2, characterized in that under the outlet pipe for fluid 17 a buffer tank is installed, and the pipe for branch 27 is installed on the buffer tank. 4. The device according to claims 1 to 3, characterized in that a heat exchanger is installed in the connecting pipe 11. 5. The device according to claims 1 to 4, characterized in that. that on the basis of the upper part of the column, preferably inside the cylindrical nozzle 26, a profiled annular housing is placed, forming with the cylindrical nozzle an annular collecting chamber 9 and an annular clarification chamber 8, the cross section of which tapers from the bottom up, and the chambers are connected through the slot 10 or through uniformly distributed around the circumference through holes, and the annular collecting chamber 9 is connected to the wetting chamber 2 through the outlet pipe 22, the pump 12 and the connecting pipe 11. 6. The device according to claims 1, 4 and 5, with the fact that the cross section of the annular clarification chamber 8 and the annular collecting chamber 9 is equal to the section of the column 20. 7. The device according to paragraphs. 1-6, characterized in that in the connecting pipe 11 is mounted a pipe 28 for supplying a wetting agent from another container.