Solid mixer, useful in the production of paper, comprises a concern stand with struts and fixture, jet pump, quantity sensor, mixing chamber, pressure sensors, passage, drive unit, control with a program, and dosing unit

摘要

Device for dosing solids in a medium, flowing under pressure comprises: a concern stand (2) with struts and fixture; a jet pump (5); a quantity sensor (6); a mixing chamber (7); pressure sensor; a downstream, further pressure sensor; passage; a drive unit; a control (43) with a program; and a dosing unit (8). Device for dosing solids in a medium, flowing under pressure comprises: a concern stand (2) with struts and fixture for further concern components; a jet pump (5), which is aligned on the stand in longitudinal axis and fixed on the crossing struts and exhibits a first screw thread pointing in the longitudinal direction and a second screw thread pointing in the another direction of longitudinal axis and a passage, which flows in both screw threads; a quantity sensor (6), which is arranged downstream in the jet pump between the first screw thread and a mixing chamber (7), and exhibits a passage (through which carrier fluid flows) that is connected with the first screw thread and with the mixing chamber; the mixing chamber exhibits a confuser on the upstream side and a diffuser on the opposite side, and connected with both screw threads; a pressure sensor, which is arranged on the upstream side of the mixing chamber, and on the upstream side of the quantity sensor, by means of which the input pressure of the flow direction is collected; a downstream, further pressure sensor is arranged close to the second screw thread, by means of which the initial pressure of flow direction is measured; a stop valve (20), which is arranged over the mixing chamber, and exhibits a passage that is connected with a outlet of dosing unit (8) and inlet of solid of the mixing chamber; a drive unit, by means of which separates a switch organ of the stop valve around its axis of rotation from a rotation angle position, in the small passage between the dosing unit and the mixing chamber, resolvable in a second rotation angle position, in which it connects the outlet of the dosing unit with the inlet of the mixing chamber over the passage of the switch of the stop valve; a control (43) with a program, which can control the overall function such that the dosing takes place only under specified conditions; and a dosing unit consisting of a solid container (9), a metering screw (12) and electrical power supply unit (11), arranged over the jet pump, by means of which the dosing solids are arranged over the stop valve in the mixing chamber to the carrier fluid, preferably water.