Sedimentation device for separating a material mix and method for removing sediment from a sedimentation device

Abstract

A sedimentation device for separating a material mix, preferably plastic flakes, including a sedimentation basin configured to receive the material mix and a liquid, for example water; an inlet configured to introduce the material mix and/or the liquid into the sedimentation basin; an outlet configured to remove sediment from the sedimentation basin; at least one stilling plate within the sedimentation basin configured as an ultrasonic oscillating element. The invention moreover relates to a method for removing sediment from a sedimentation device.

Claims

1. A sedimentation device for separating a material mix, comprising: a sedimentation basin configured to receive the material mix and a liquid, an inlet configured to introduce the material mix and/or the liquid into the sedimentation basin, an outlet configured to remove sediment from the sedimentation basin, at least one stilling plate within the sedimentation basin, and the at least one stilling plate configured as an ultrasonic oscillating element for supporting sedimentation and for reducing another swirling of sediment in the sedimentation basin when the sediment is being removed through the outlet.

2. The sedimentation device according to claim 1, and an admission configured to introduce the liquid into the sedimentation basin.

3. The sedimentation device according to claim 1, and a bottom of the sedimentation basin has a funnel-shape.

4. The sedimentation device according to claim 3, and the outlet comprises a double gate.

5. The sedimentation device according to claim 3, and the outlet comprises a worm.

6. The sedimentation device according to claim 1, and a sand inlet.

7. The sedimentation device according to claim 6, and a bottom of the sedimentation basin has a flat design.

8. The sedimentation device according to claim 6, and the outlet comprises a conveyor.

9. The sedimentation device according to claim 6, and a pusher disposed at a bottom of the sedimentation basin and configured to be moved along the bottom and bring sediment to the outlet.

10. The sedimentation device according to claim 1, and a control device configured to: stop an introduction of liquid into the sedimentation basin through the inlet and start an emission of ultrasonic sound through the at least one stilling plate within the sedimentation basin, and subsequently start a removal of the sediment from the sedimentation basin through the outlet; and stop the removal of sediment from the sedimentation basin through the outlet and then start the introduction of liquid into the sedimentation basin through the inlet, and stop the emission of ultrasonic sound through the at least one stilling plate within the sedimentation basin.

11. The sedimentation device according to claim 1, and the material mix comprises plastic flakes.

12. The sedimentation device according to claim 1, and the liquid comprises water.

13. The sedimentation device according to claim 3, and the outlet is arranged in a funnel mouth of the funnel-shaped sedimentation basin.

14. The sedimentation device according to claim 4, and the double gate comprises a first gate and a second gate.

15. The sedimentation device according to claim 7, and the outlet is arranged in a side wall of the sedimentation basin.

16. The sedimentation device according to claim 8, and a plurality of transverse ribs are arranged on the conveyor.

Description

BRIEF DESCRIPTION OF THE FIGURES

(1) Further advantages and embodiments can be taken from the enclosed drawings. In the drawings:

(2) FIG. 1 shows a first embodiment of a sedimentation device for separating material;

(3) FIG. 2 shows a second embodiment of a sedimentation device for separating material;

(4) FIG. 3 shows a third embodiment of a sedimentation device for separating material; and

(5) FIG. 4 shows a flow chart of a method for removing sediment from a sedimentation device.

DETAILED DESCRIPTION

(6) FIG. 1 shows a first embodiment of a sedimentation device 1 for separating a material mix. The represented sedimentation device 1 comprises a sedimentation basin 2 with an admission 3 for liquid, for example water, disposed at a side wall of the sedimentation basin 2 and is located, for an operation of the sedimentation basin 2, underneath the surface 4 of the mixture of liquid and the material mix to be separated. An inlet 5 for the material mix and/or the liquid is disposed above the sedimentation basin 2, the opening being located underneath the surface 4 of the mixture of liquid and the material mix to be separated.

(7) The bottom 6 of the sedimentation basin 2 comprises an inclination which is disposed such that the sediment deposited on the bottom 6 or accumulating there reaches an outlet 7 which is here disposed in the middle of the bottom 6 and extends downwards, so that the sediment may be discharged by means of gravity. The outlet 7 comprises a double gate 8, 9 comprising a first gate 8 and a second gate 9 and therefore operates as a kind of lock.

(8) Five stilling plates 10, 11, 12, 13, 14 are moreover arranged within the sedimentation basin 2 and are configured as ultrasonic oscillating elements.

(9) FIG. 2 shows a second embodiment of a sedimentation device 15 for separating a material mix. The represented sedimentation device 15 comprises a sedimentation basin 16 with an admission 17 for liquid, for example water, disposed at a side wall of the sedimentation basin 16 and located, for an operation of the sedimentation basin 16, underneath the surface 18 of the mixture of liquid and the material mix to be separated. The inlet 19 for the material mix and/or the liquid is disposed above the sedimentation basin 16, the opening being located underneath the surface 18 of the mixture of liquid and the material mix to be separated.

(10) The bottom 20 of the sedimentation basin 16 comprises an inclination which is arranged such that the sediment deposited or accumulating on the bottom 6 reaches an outlet 21 which is here arranged in the middle of the bottom 20 and extends obliquely to the top. Sediment that accumulates in this region may be discharged by means of a worm 22 via an outlet pipe 23.

(11) Within the sedimentation basin 16, five stilling plates 24, 25, 26, 27, 28 are moreover arranged and configured as ultrasonic oscillating elements.

(12) FIG. 3 shows a third embodiment of a sedimentation device 29 for separating a material mix. The represented sedimentation device 29 comprises a sedimentation basin 30 with an admission 31 for liquid, for example water, disposed at a side wall of the sedimentation basin 30 near the bottom surface 32 and being located, for an operation of the sedimentation basin 30, underneath the surface 33 of the mixture of liquid and the material mix to be separated. The inlet 34 for the material mix and/or the liquid is disposed above the sedimentation basin 30, the opening being located underneath the surface 33 of the mixture of liquid and the material mix to be separated.

(13) The bottom 32 of the sedimentation basin extends horizontally, and by means of a pusher 35, sediment may be pushed to a drain 36 where said sediment is then removed by means of a conveyor 37 with ribs 38.

(14) Moreover, five stilling plates 39, 40, 41, 42, 43 are arranged within the sedimentation basin 30 and configured as ultrasonic oscillating elements.

(15) FIG. 4 shows a flow chart of a method for removing sediment from a sedimentation device 1, 15, 29. In a first step 44, an introduction of liquid into the sedimentation basin 2, 16, 30 is stopped, and in a second step 45, an emission of ultrasonic sound through the stilling plates 10-14, 24-28, 39-43 is started. The first step 44 and the second step 45 may also be effected in reverse order or simultaneously.

(16) In a third step 46, a removal of sediment through the outlet 7, 21, 36 is started. After a desired amount of sediment has been removed or the removal of sediment has been accomplished over a desired period, the removal of the sediment through the outlet 7, 21, 36 is stopped in a fourth step 47.

(17) In a fifth step 48, an introduction of liquid into the sedimentation basin 2, 16, 30 is started, and in a sixth step 49, the emission of ultrasonic sound through the stilling plates 10-14, 24-28, 39-43 is stopped. The fifth step 48 and the sixth step 49 may also be effected in reverse order or simultaneously.