Flocculation precipitation device for wastewater treatment

Abstract

The utility model belongs to the technical field of wastewater treatment, particularly relates to a flocculation and sedimentation device for wastewater treatment, and provides the following scheme aiming at the problems that the position of stirring equipment in an existing wastewater pool is fixed, and a coagulant and wastewater are inconvenient to fully mix: the flocculation and sedimentation device comprises a sedimentation pool body for accommodating sewage; first grooves are formed in the two ends of the sedimentation tank body correspondingly, the same movable platform slides in the two first grooves, two stirring shafts are arranged on the lower side of the movable platform, a plurality of stirring blades are fixed to the surfaces of the two stirring shafts correspondingly, and a set of stirring assembly is arranged in the movable platform. The stirring assembly is used for driving two stirring shafts and a plurality of stirring blades to stir wastewater and a coagulant; the reciprocating assembly is arranged in the sedimentation tank body and is used for driving the moving platform and the stirring assembly to perform reciprocating stirring in the sedimentation tank body; and through the arrangement of the swing assembly, the two charging barrels can be driven to perform uniform discharging, so that accurate feeding of a coagulant is ensured, and the wastewater treatment precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a flocculation and sedimentation device for wastewater treatment. Background Technology

[0002] The principle of flocculation and sedimentation refers to the process in which coagulants are added to water during water treatment, causing the colloidal and dispersed particles of suspended solids to form flocs under the interaction of molecular forces. During the sedimentation process, these flocs collide and agglomerate with each other, continuously increasing in size and mass, and increasing in settling velocity, thereby achieving the separation of particulate matter from the water.

[0003] In existing technologies, flocculation and sedimentation are achieved by adding coagulants to wastewater ponds and then stirring them. However, the stirring equipment in existing wastewater ponds is in a fixed position, which makes it inconvenient to fully mix the coagulants and wastewater. In addition, the coagulants are mostly added at fixed points, and the flocculation and sedimentation effect is poor in areas where they are not added. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the mixing equipment in wastewater tanks is fixed in position, making it inconvenient to fully mix the coagulant and wastewater. Therefore, this invention proposes a flocculation and sedimentation device for wastewater treatment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flocculation and sedimentation device for wastewater treatment includes a sedimentation tank for holding wastewater;

[0007] The sedimentation tank has a first groove at both ends, and a moving platform slides in the two first grooves. Two stirring shafts are provided on the lower side of the moving platform, and multiple stirring blades are fixed on the surface of the two stirring shafts. A stirring assembly is provided in the moving platform. The stirring assembly is used to drive the two stirring shafts and multiple stirring blades to stir the wastewater and coagulant.

[0008] A reciprocating assembly, which is disposed in the sedimentation tank and is used to drive the mobile platform and the stirring assembly to perform reciprocating stirring in the sedimentation tank;

[0009] The mobile platform has two material cylinders, and each end of the mobile platform has a chute. The two material cylinders are respectively placed in the two chutes to hold the coagulant. The mobile platform is equipped with a set of swing components that work in conjunction with the stirring components. The swing components are used to drive the two material cylinders to feed the material evenly.

[0010] In one possible design, the reciprocating assembly includes a reciprocating screw rotating in one of the first grooves, a limit rod fixed in the other of the first grooves, a moving platform threadedly connected to the surface of the reciprocating screw, the moving platform sliding on the surface of the limit rod, and a second drive motor fixed to the side end of the sedimentation tank body, the second drive motor being fixedly connected to the reciprocating screw via a coupling.

[0011] In one possible design, the stirring assembly includes a second groove formed at the bottom of the mobile platform, a turntable rotatably disposed within the second groove, two stirring shafts rotating within the turntable, driven gears fixed to the surfaces of the two stirring shafts, a drive rack meshing with the two driven gears fixed within the second groove, a rotating shaft fixed to the top of the turntable, the rotating shaft moving upwards through the side end of the mobile platform, a first drive motor fixed to the top of the mobile platform, and the first drive motor being fixedly connected to the rotating shaft via a coupling.

[0012] In one possible design, the swing assembly includes a third groove formed within the moving platform, in which a semi-toothed ring slides, with connecting rods fixed at both ends of the semi-toothed ring, and two limiting rods fixed to the ends of the two connecting rods that are far apart. A semi-toothed gear that intermittently meshes with the semi-toothed ring is fixed to the surface of the rotating shaft.

[0013] In one possible design, both of the barrels are made of transparent acrylic sheets.

[0014] In one possible design, both bottom surfaces of the barrels are threaded with sealing caps.

[0015] In this application, the coagulant is loaded into two cylinders respectively. The sealing cap at the bottom of the cylinder is unscrewed to allow the coagulant to be added. The second drive motor is started to drive the reciprocating screw to rotate. The rotation of the reciprocating screw drives the moving platform to move back and forth on the upper side of the sedimentation tank. The moving platform drives the two limit rods to move back and forth to spread the material, which can make the coagulant evenly spread into the sedimentation tank.

[0016] The mobile platform drives two stirring shafts and multiple stirring blades to move synchronously back and forth. By starting the first drive motor, the rotating shaft rotates, which in turn drives the turntable to rotate. The turntable then drives the two stirring shafts to rotate in a circular motion. Each of the two stirring shafts drives two driven gears to rotate in a circular motion. As the driven gears rotate in a circular motion, they are driven by a rack to rotate. The driven gears drive the stirring shafts and multiple stirring blades to rotate and stir, achieving thorough mixing of the coagulant and wastewater. At the same time, the rotation of the rotating shafts drives the half-tooth gear to rotate, which in turn drives the half-tooth gear ring to move back and forth. The half-tooth gear ring drives two connecting rods to move back and forth, and the two connecting rods drive two material cylinders to slide in the chute to spread the material, which can make the coagulant more evenly distributed.

[0017] Beneficial effects: In this utility model, the flocculation sedimentation device for wastewater treatment can drive the moving platform and the stirring component to reciprocate within the sedimentation tank through the set reciprocating component, thereby improving the uniformity of stirring and thus improving the wastewater treatment effect.

[0018] In this utility model, the flocculation and sedimentation device for wastewater treatment, through the set reciprocating components, can drive the moving platform and the stirring components to reciprocate and stir in the sedimentation tank, thereby improving the uniformity of stirring and thus improving the wastewater treatment effect.

[0019] In this invention, the swing assembly can drive the two feed cylinders to feed the material evenly, ensuring the precise addition of the coagulant and improving the accuracy of wastewater treatment. Attached Figure Description

[0020] Figure 1 This is a front perspective view of a flocculation and sedimentation device for wastewater treatment proposed in this utility model;

[0021] Figure 2 This is a cross-sectional view of a flocculation and sedimentation device for wastewater treatment proposed in this utility model;

[0022] Figure 3 This is a first partial cross-sectional view of a flocculation and sedimentation device for wastewater treatment proposed in this utility model;

[0023] Figure 4 This is a second partial cross-sectional view of a flocculation and sedimentation device for wastewater treatment proposed in this utility model.

[0024] In the diagram: 1. Sedimentation tank body; 2. Moving platform; 3. First groove; 4. Reciprocating screw; 5. Limiting rod; 6. First drive motor; 7. Stirring shaft; 8. Stirring blade; 9. Second groove; 10. Turntable; 11. Rotating shaft; 12. Driven gear; 13. Drive rack; 14. Slide groove; 15. Material cylinder; 16. Third groove; 17. Half-tooth ring; 18. Half-tooth gear; 19. Second drive motor; 20. Connecting rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1: Refer to Figures 1-4 A flocculation and sedimentation device for wastewater treatment, applied in the field of wastewater treatment technology, includes a sedimentation tank 1 for holding wastewater to be treated. At both ends of the sedimentation tank 1, first grooves 3 are respectively formed, and a movable platform 2 is slidably installed within these two first grooves 3. Two stirring shafts 7 are provided on the lower side of the movable platform 2, and multiple stirring blades 8 are fixed to the surface of each stirring shaft 7. These stirring blades 8 are used to generate a stirring effect in the wastewater.

[0027] To achieve the stirring function, the mobile platform 2 is equipped with a stirring assembly. This assembly includes a second groove 9 at the bottom of the mobile platform 2, within which a turntable 10 is rotatably mounted. Two stirring shafts 7 are rotatably connected to the turntable 10, and a rotating shaft 11 is fixed to the top of the turntable 10, extending upwards through the side of the mobile platform 2. A first drive motor 6 is fixed to the top of the mobile platform 2, and is fixedly connected to the rotating shaft 11 via a coupling, thereby driving the turntable 10 to rotate. Driven gears 12 are fixed to the surfaces of both stirring shafts 7, and a drive rack 13 meshing with the two driven gears 12 is fixed in the second groove 9. When the turntable 10 rotates, it drives the two stirring shafts 7 and the stirring blades 8 to stir.

[0028] To achieve the reciprocating motion of the mobile platform 2 within the sedimentation tank 1, a reciprocating assembly is provided. This assembly includes a reciprocating lead screw 4 that rotates within one of the first grooves 3, and a limiting rod 5 fixed within the other first groove 3. The mobile platform 2 is threadedly connected to the surface of the reciprocating lead screw 4 and slides on the surface of the limiting rod 5. A second drive motor 19 is fixed to the side end of the sedimentation tank 1, and the second drive motor 19 is fixedly connected to the reciprocating lead screw 4 via a coupling, thereby driving the mobile platform 2 to perform reciprocating motion.

[0029] Example 2: Reference Figures 1-4Improvements based on Example 1: To achieve uniform feeding of the coagulant, both ends of the moving platform 2 are provided with grooves 14, and two material cylinders 15 are respectively set in the two grooves 14 for containing the coagulant. The moving platform 2 is provided with a set of swing components that cooperate with the stirring components. The swing components include a third groove 16 opened in the moving platform 2, and a half-tooth ring 17 is slidably installed in the third groove 16. Both ends of the half-tooth ring 17 are fixed with connecting rods 20, and two limiting rods 5 are respectively fixed at the far ends of the two connecting rods 20. A half-tooth gear 18 is fixed on the surface of the rotating shaft 11 and intermittently meshes with the half-tooth ring 17. When the turntable 10 rotates, the half-tooth gear 18 drives the half-tooth ring 17 to swing, which in turn drives the two material cylinders 15 to swing in the grooves 14 through the connecting rods 20, thereby achieving uniform feeding.

[0030] However, as is well known to those skilled in the art, the working principles and wiring methods of the first drive motor 6 and the second drive motor 19 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flocculation and sedimentation device for wastewater treatment, characterized in that, include: Sedimentation tank for containing sewage (1); The sedimentation tank (1) has a first groove (3) at both ends, and the same moving platform (2) slides in the two first grooves (3). The moving platform (2) has two stirring shafts (7) on its lower side, and multiple stirring blades (8) are fixed on the surface of the two stirring shafts (7). The moving platform (2) has a set of stirring components, which are used to drive the two stirring shafts (7) and multiple stirring blades (8) to stir the wastewater and coagulant. A reciprocating assembly is provided inside the sedimentation tank (1) to drive the moving platform (2) and the stirring assembly to reciprocate within the sedimentation tank (1); Two material cylinders (15) are provided at both ends of the moving platform (2), and the two material cylinders (15) are respectively placed in the two slid grooves (14) for containing coagulant. The moving platform (2) is provided with a set of swing components that work in conjunction with the stirring components. The swing components are used to drive the two material cylinders (15) to feed the material evenly.

2. The flocculation and sedimentation device for wastewater treatment according to claim 1, characterized in that, The reciprocating assembly includes a reciprocating screw (4) rotating in one of the first grooves (3), a limiting rod (5) fixed in the other first groove (3), a moving platform (2) threadedly connected to the surface of the reciprocating screw (4), the moving platform (2) sliding on the surface of the limiting rod (5), and a second drive motor (19) fixed to the side end of the sedimentation tank (1), the second drive motor (19) being fixedly connected to the reciprocating screw (4) via a coupling.

3. The flocculation and sedimentation device for wastewater treatment according to claim 2, characterized in that, The stirring assembly includes a second groove (9) at the bottom of the mobile platform (2), a turntable (10) is rotatable in the second groove (9), two stirring shafts (7) rotate in the turntable (10), driven gears (12) are fixed on the surfaces of the two stirring shafts (7), a drive rack (13) that meshes with the two driven gears (12) is fixed in the second groove (9), a rotating shaft (11) is fixed at the top of the turntable (10), the rotating shaft (11) moves upward through the side of the mobile platform (2), a first drive motor (6) is fixed at the top of the mobile platform (2), and the first drive motor (6) is fixedly connected to the rotating shaft (11) through a coupling.

4. The flocculation and sedimentation device for wastewater treatment according to claim 3, characterized in that, The swing assembly includes a third groove (16) opened in the moving platform (2), a half-tooth ring (17) sliding in the third groove (16), and connecting rods (20) fixed at both ends of the half-tooth ring (17). The two material cylinders (15) are respectively fixed at the ends of the two connecting rods (20) that are far apart. The surface of the rotating shaft (11) is fixed with a half-tooth gear (18) that intermittently meshes with the half-tooth ring (17).

5. The flocculation and sedimentation device for wastewater treatment according to claim 4, characterized in that, Both of the aforementioned barrels (15) are made of transparent acrylic sheets.

6. The flocculation and sedimentation device for wastewater treatment according to claim 4, characterized in that, Both of the bottom surfaces of the two barrels (15) are threaded with sealing caps.

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