NOZZLE DESIGN FOR PULSATION COLUMNS FOR LEACHING RAW MATERIALS BY HEATED AGGRESSIVE ACIDS

摘要

1. Design of packing for pulsating columns for leaching (dissolution) of raw materials with heated aggressive acids, including horizontal trays installed one above the other with holes of "left" and "right" versions, located along concentric circles of the tray disk and providing a change in the flow of pulp between adjacent pairs of trays 180 °, characterized in that the holes are made in the form of half an ellipse, each of which has a cover that excludes the formation of vertical flows of reagents in the apparatus. ! 2. The structure according to claim 1, characterized in that the shape of the shelter is a cylinder truncated in length at an angle α = 25-35 °. ! 3. Construction according to claim 1, characterized in that the length of the opening in the plate is equal to half of the major axis of the ellipse, and the width is equal to the length of the minor axis, and the ratio of length to width is in the range from 1: 1 to 1: 0.6. ! 4. The structure according to claim 3, characterized in that in order to increase the rate of exit of the liquid phase and create a "nozzle effect" the area of the hole in the plate (from the side of the pulse supply) is larger than the area of the exit from the shelter. ! 5. The structure according to claim 1, characterized in that the angle β between the planes of the disk and the exit of the reagents from the shelter is within 85-90 °. ! 6. Construction according to claim 1, characterized in that the shape of the hole and its cover make it possible to manufacture a plate from composite materials by molding an article on a matrix. ! 7. The structure according to claim 1, characterized in that a rigid cylindrical spacer is installed between the two pairs of plates, which acts as a support structure for the packing and protects the column body from abrasive wear. ! 8. Construction according to claim 7, characterized in that �