| 摘要 |
The valve has hollow body(1), in shape of rational symmetry, with funnel-shaped shoulder(4) and outflow connection(5). Axially adjustable spindle(6) has spindle head(7) to set valve gap with funnel-shaped shoulder(4). At least two inflow connections(2,3) are at opposite end of hollow body(1) to outflow opening(5), for suspension flow to be used for dosing. The valve to control a suspension flow is for adjustment to the lateral profile of the pulp flow at the stock inlet of a papermaking machine, by dosed feeds of recovered water from the fourdrinier section. It has a hollow body (1), in a shape of rational symmetry, with a funnel-shaped shoulder (4) and an outflow connection (5). An axially adjustable spindle (6) has a spindle head (7) to set the valve gap with the funnel-shaped shoulder (4). At least two inflow connections (2,3) are at the opposite end of the hollow body (1) to the outflow opening (5), for the suspension flow to be used for dosing. They are arranged in a symmetrical layout, so that their axes intersect the longitudinal axis of the hollow body (1). The hollow body (1) has a diameter which decreases and/or increases at the spindle (6). The angle between the axes of the inflows (2,3) and the longitudinal axis of the hollow body (1) is 20-60 deg . The spindle head (7) has a pineapple shape with a rounded point with a cross section which initially increases in the flow direction and then decreases.
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