Floating weir skimmer

Abstract

A floating weir skimmer comprises a collecting box (10), a weir plate (11) and an inner buoy (5). Said collecting box (10) comprises a baffle plate (3) and a trough (1). A guide rail (6) is arranged inside said trough (1). An inner buoy (5) is arranged inside collecting box (10), and a guide pulley (14) is arranged on said inner buoy (5), enabling said inner buoy (5) to slide on said guide rail (6). A supporting member is further arranged on said inner buoy (5). One end of said weir plate (11) is carried by said supporting member, and the other end is in rotation connection with said trough (1).

Claims

1. A floating weir skimmer comprising: a collecting box, a weir plate, an inner buoy, at least two guide rails, and a supporting member; wherein said collecting box includes a liquid outlet, two baffle plates, and a trough; the baffle plates are respectfully located at both ends of the trough, so the trough being a container for an inner liquid; the liquid outlet is configured for outputting the inner liquid of the collecting box when opened; the guide rails are anchored inside said trough in a vertical direction; the inner buoy is located inside the trough between the two guide rails, floating on a surface of the inner liquid; a guide pulley assembly is arranged on each end of the inner buoy; the guide pulley assembly on each end of the trough is in contact with the guide rail and allows the inner buoy to slide along the guide rails when the surface of the inner liquid is changed; the supporting member is attached to a first side of the inner buoy, so that the supporting member is movable with the inner buoy when the surface of the inner liquid is changed; a first end of the weir plate is rotatably connected to a side edge of the trough, and a second end of the weir plate is supported by the supporting member, so that the weir plate is rotatable around the first end when the supporting member is moved with the inner buoy; the weir plate further comprises at least one weir opening to allow an outer scum to enter the trough.

2. The floating weir skimmer according to claim 1, wherein said weir plate comprises a rotation plate, at least one weir opening, and a weir; the rotation plate comprises a first rotation plate end in rotation connection with the side edge of said trough, and a second rotation plate end provided with said weir opening and said weir; said second rotation plate end of the rotation plate is supported by the supporting member.

3. The floating weir skimmer according to claim 1, wherein said weir plate comprises a rotation plate and a multi-opening weir plate; said rotation plate comprises a rotating part and a supporting part; the multi-opening weir plate is located between the rotating part and the supporting part; a first rotation part end of the rotation part is in rotation connection with the side edge of said trough, and a second rotation part end is connected with a first weir plate end of said multi-opening weir plate; the multi-opening weir plate comprises a plurality of weir openings; a second weir plate end of the multi-opening weir plate is connected to a first supporting part end of the supporting part; a second supporting part end of said supporting part is supported by the supporting member.

4. The floating weir skimmer according to claim 3, wherein adjacent weir openings of the plurality of weir openings are spaced by one weir along a length direction of the multi-opening weir plate.

5. The floating weir skimmer according to claim 3, wherein said supporting member comprises a adjustable bolt and a carrying block, said adjustable bolt is fixed on the inner buoy; a first block end of said carrying block is attached to said adjustable bolt, allowing the carrying block to move up and down with said adjustable bolt, and a second block end of said carrying block supports the supporting part of the rotation plate.

6. The floating weir skimmer according to claim 1, wherein the number of the weir plate is one; the weir plate is located at a first side of the trough, with the first end of the weir plate being connected to the first side edge of the trough; and a second side of the trough is enclosed.

7. The floating weir skimmer according to claim 1, wherein the number of the weir plate is two; the weir plates are located at both sides of the trough, with the first ends of the weir plates being connected to the first side edge and the second side edge, respectively.

8. The floating weir skimmer according to claim 1, wherein the number of said inner buoy is at least one.

Description

DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a front view of a skimmer according to Embodiment 1 of the present invention;

(2) FIG. 2 is a sectional view along line A-A of FIG. 1;

(3) FIG. 3 is a schematic diagram for self-adjustment of floating weir;

(4) FIG. 4 is a top view of FIG. 1;

(5) FIG. 5 is a structural diagram of a multi-opening weir plate;

(6) FIG. 6 is a structural diagram of a single-side floating weir skimmer.

(7) In the figures, 1. trough; 2. rotation plate; 2A. rotating part; 2B. supporting part; 3. baffle plate; 4. multi-opening weir plate; 5. inner buoy; 6. guide rail; 7. adjustable bolt; 8. carrying block; 9. bolt; 10. collecting box; 11, weir plate; 12. hinge; 13. liquid outlet; 14. guide pulley; 15. weir crest; 16. weir; 17. long round opening.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

(8) The present invention is described in further detail with reference to the drawings and embodiments as follows. The following embodiments are used to illustrate the present invention, but not intended to limit the scope of the present invention.

Embodiment 1

(9) As shown in FIGS. 1-5, the floating weir skimmer is a combination of double-side weir plate and double inner buoys. The collecting box 10 includes two baffle plates 3 and one trough 1. A guide rail 6 is arranged inside said trough 1. A quadrangular inner buoy 5 is arranged inside said collecting box 10. Both ends of said inner buoy 5 are provided with a guide pulley 14. The inner buoy floats with the help of the liquid buoyancy in said collecting box 10. The level changes in said collecting box 10 enables said inner buoy 5 to float along said guide rail 6 relying on said guide pulley 14. An adjustable bolt 7 is fixed on both sides of said inner buoy 5. A carrying block 8 is arranged on said adjustable bolt 7. Positions and heights of said carrying blocks 8 on the left and the right sides of said inner buoy 5 may be different. Said carrying block 8 on the left side is slightly higher than said carrying block 8 on the right side.

(10) In this embodiment, the weir plate 11 is a double-side weir plate, namely, both sides of the inner buoy 5 are provided with the weir plate 11. Said weir plate 11 includes a rotation plate 2 and a multi-opening weir plate 4. Said rotation plate 2 consists of a rotating part 2A and a supporting part 2B. One end of said rotating part 2A is in rotation connection with the trough 1. Said rotation connection may be other connection methods conventionally used in this field as long as the rotation of said rotation plate 2 can be achieved, hinge connection is preferred in this embodiment, namely connection through hinges. The other end of said rotating part 2A is in fixed connection with said multi-opening weir plate 4 by the bolt 9. Said supporting part 2B presses on the carrying block 8 relying on its own gravity and moves with said carrying block 8 moving up and down. Weir crests 15 and weirs 16 are alternatively arranged on said multi-opening weir plate 4. Since said multi-opening weir plate 4 is extremely long, making it not easily to be controlled within a same level. A long round opening 17 adjusting the height of the weir crest 15 is further arranged on said multi-opening weir plate 4. A liquid outlet 13 is arranged at the bottom of the collecting box 10.

(11) When collecting scum, the liquid outlet 13 is opened. The liquid level in the collecting box 10 will decrease; the inner buoy 5 will float due to changes of liquid level in the collecting box 10. The inner buoy 5 moves downwards, driving the adjustable bolt 7 and the carrying block 8 to also move downwards. The rotation plate 2 rotates, driving the multi-opening weir plate 4 to rotate. The scum outside the trough 1 will enter the collecting box 10 through the weir crest 15. After finishing collection, the liquid outlet 13 is closed. The inner buoy 5, the rotation plate 2 and the multi-opening weir plate 4 will return to their original positions.

(12) The operating principle of the self-adjustment of weir plate in the floating weir skimmer is as follows. As shown in FIG. 3, when the level in the collecting box 10 decreases due to discharge, the level difference h1 between the inside and the outside increases, and the inner buoy 5 moves downwards, driving the multi-opening weir plate 4 to also move downwards while rotating around the hinge 12. The heights h2 and h3 of the weir crests 15 on the left and the right sides relative to the liquid level increase, and the amount of collected surface liquid or scum increases. As the discharge h1 changes, the heights h2 and h3 of collected surface liquid or scum also change, achieving the purpose of automatically controlling the collection level by only controlling the output flow. The heights h2 and h3 of the weir crests 15 on the left and the right sides relative to the liquid level may be preset by the carrying block 8 on the left and the right sides according to, the situation of the collected surface liquid or scum.

Embodiment 2

(13) As shown in FIG. 6, the floating weir skimmer in this embodiment is a combination of a single-side weir plate and a single inner buoy.

(14) The collecting box 10 includes two baffle plates 3 and one trough 1. A guide rail 6 is arranged inside said trough 1. A quadrate-barrel shaped inner buoy 5 is arranged inside said collecting box 10. Both ends of said inner buoy 5 are provided with a guide pulley 14. Said inner buoy 5 floats with the help of the liquid buoyancy in said collecting box 10. The level changes in said collecting box 10 enables said inner buoy 5 to float along said guide rail 6 relying on said guide pulley 14. An adjustable bolt 7 is fixed on one side of said inner buoy 5. A carrying block 8 is arranged on said adjustable bolt 7.

(15) One side of said inner buoy 5 is provided with a rotation plate 2. One end of said rotation plate 2 is in hinge connection with the trough 1, the other end of said rotation plate 2 is alternatively provided with the weir crests 15 and the weirs 16. Said rotation plate 2 presses on the carrying block 8 relying on its own gravity and moves with said carrying block 8 moving up and down, driving rotation of said rotation plate 2. A liquid outlet 13 is arranged at the bottom of the collecting box 10.

(16) The above-mentioned are only preferred embodiments of the present invention. However, the protection scope of the present invention is not limited to above-mentioned embodiments. Any equivalent substitution or changes made by one of ordinary skill in the art under the teaching of the present invention falls into the protection scope of the present invention.