Precipitation device for town sewage treatment

Abstract

The utility model discloses a precipitation device for urban sewage treatment, relates to the technical field of sewage treatment, and aims to solve the problems that the stirring range of each group of stirring components of the conventional precipitation device is relatively small, and blades of the stirring components are vertically arranged and cannot drive internal sewage to flow in a pushing manner, so that the efficiency is relatively low. Comprising a sewage sedimentation tank, a flocculating agent mixing box is arranged on the outer wall of one end of the sewage sedimentation tank, a flocculating agent inlet is formed between the flocculating agent mixing box and the sewage sedimentation tank, and a stirring motor for stirring a flocculating agent is arranged on the upper surface of the flocculating agent mixing box; a sewage inlet is formed in the top of the end, located in the flocculant mixing box, of the sewage sedimentation tank, a discharge port is formed in the bottom of the end, away from the sewage inlet, of the sewage sedimentation tank, and a stirring assembly is arranged in the sewage sedimentation tank and comprises a plurality of blade shaft rods which are arranged in an up-down layered mode; and a plurality of blade groups which are arranged at intervals are arranged on the outer wall of the blade shaft rod.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sedimentation device for urban sewage treatment. Background Art

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. Sedimentation treatment is one of the commonly used sewage treatment methods. Flocculants are used in the sewage treatment process to separate and precipitate impurities in the sewage. The existing sedimentation device is not convenient for quickly and evenly mixing the flocculant, resulting in a slow sedimentation speed and low sedimentation uniformity.

[0003] For example, announcement number: CN220695932U, a sedimentation device for sewage treatment, which includes a sedimentation tank, a control top plate and two stirring components. The control top plate is slidably installed on the top of the sedimentation tank. The two stirring components are both arranged on the control top plate. The stirring component includes an adjustment seat, a stirring motor and a stirring shaft. A sliding hole is opened on the control top plate, and the adjustment seat is slidably installed in the sliding hole. The stirring motor is fixedly installed on the top of the adjustment seat. The stirring shaft is fixedly connected to the output shaft of the stirring motor, and the stirring shaft is arranged in the sedimentation tank.

[0004] The stirring range of each stirring assembly of the above-mentioned existing sedimentation device is small, and the blades of the stirring assembly are horizontally lying, which cannot drive the internal sewage to flow in a pushing manner, resulting in low efficiency; therefore, it does not meet the existing needs. In this regard, we propose a sedimentation device for urban sewage treatment. Utility Model Content

[0005] The purpose of the utility model is to provide a sedimentation device for urban sewage treatment, which promotes the flow of internal sewage through blades arranged horizontally up and down, and drives the stirring component to move by moving, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sedimentation device for urban sewage treatment, comprising: a sewage sedimentation tank, a flocculant mixing box is arranged on the outer wall of one end of the sewage sedimentation tank, a flocculant inlet is arranged between the flocculant mixing box and the sewage sedimentation tank, a stirring motor for stirring flocculant is arranged on the upper surface of the flocculant mixing box, a sewage inlet is arranged at the top of one end of the sewage sedimentation tank located at the flocculant mixing box, a discharge outlet is arranged at the bottom of the end of the sewage sedimentation tank away from the sewage inlet, a stirring component is arranged inside the sewage sedimentation tank, and the stirring component includes a plurality of upper A blade shaft is arranged in a lower level, and a plurality of blade groups arranged at intervals are arranged on the outer wall of the blade shaft, and each blade group is composed of 6 to 8 annularly distributed blades, brackets are arranged at both ends of the stirring component, a driven lifting frame is arranged at the upper end of the bracket, a driving motor is arranged inside the driven lifting frame, a first transmission belt is arranged at the output end of the driving motor, a driven shaft is arranged at one end of the blade shaft, and the driving motor is connected to the driven shaft through the first transmission belt, a second transmission belt is arranged on the outer wall of the driven shaft, and the driven shaft is connected to another driven shaft through the second transmission belt.

[0007] Preferably, a first mounting frame and a second mounting frame are respectively installed at both ends of the driven lifting frame, and a driving member for driving the driven lifting frame to move up and down is arranged on the outer wall of the first mounting frame, and the driving member is driven by any one of a cylinder, an electric cylinder, and a hydraulic cylinder; the lifting and lowering adjustment of the stirring assembly is realized through the driving member.

[0008] Preferably, a screw linear module is arranged below the first mounting frame, and the screw linear module includes a ball screw located in a groove on the upper surface of the sewage sedimentation tank, a screw motor is arranged at one end of the ball screw, a screw slider is arranged on the outer wall of the ball screw, and the upper surface of the screw slider is combined and installed with the bottom of the first mounting frame, and the stirring assembly is driven to move and stir through the screw linear module.

[0009] Preferably, a driven moving part is arranged below the second mounting frame, and the driven moving part is moved by any one of a slide groove slider, a slide bar slider, and a guide rail slider; the movement of the follower screw linear module is achieved by the driven moving part.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model expands the stirring area by means of upper and lower multi-layer stirring shafts. A plurality of blade groups are arranged on the stirring shafts. The blade groups are composed of a plurality of annularly distributed blades. On the basis of rotation, the water in the sedimentation tank can be effectively promoted to flow, thereby accelerating the sedimentation mixing efficiency and expanding the mixing area. The utility model is assisted by lifting and displacement methods to further improve the flexibility of the stirring component, expand the stirring range, and improve the sedimentation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a top perspective view of the utility model;

[0014] Figure 3 This is a three-dimensional diagram of the stirring assembly of the utility model;

[0015] Figure 4 This is a schematic diagram of the internal structure of the stirring component of the utility model;

[0016] In the figure: 1. sewage sedimentation tank; 2. lead screw linear module; 3. ball screw; 4. lead screw motor; 5. lead screw slider; 6. driven moving part; 7. first mounting frame; 8. second mounting frame; 9. driving member; 10. driven lifting frame; 11. bracket; 12. stirring assembly; 13. blade shaft; 14. driving motor; 15. first transmission belt; 16. driven shaft; 17. second transmission belt; 18. blade group; 19. sewage inlet; 20. discharge outlet; 21. flocculant mixing box; 22. flocculant inlet; 23. stirring motor. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] See also Figure 1-4 The utility model provides an embodiment: a sedimentation device for urban sewage treatment, comprising: a sewage sedimentation tank 1, a sewage inlet 19 is arranged at the top of one end of the sewage sedimentation tank 1 located at a flocculant mixing box 21, a discharge outlet 20 is arranged at the bottom of the end of the sewage sedimentation tank 1 away from the sewage inlet 19, a flocculant mixing box 21 is arranged on the outer wall of one end of the sewage sedimentation tank 1, a flocculant inlet 22 is arranged between the flocculant mixing box 21 and the sewage sedimentation tank 1, and a stirring motor 23 for stirring flocculant is arranged on the upper surface of the flocculant mixing box 21, the flocculant is pre-stirred and mixed by the stirring motor 23 before being added, and the stirred flocculant is discharged into the sewage sedimentation tank 1 through the flocculant inlet 22 for subsequent sedimentation treatment.

[0019] See also Figure 3 A stirring assembly 12 is arranged inside the sewage sedimentation tank 1. The stirring assembly 12 is divided into an upper and lower multi-layer blade shaft 13. A plurality of blade groups 18 are arranged on the blade shaft 13. Each blade group 18 is composed of 6 to 8 annularly distributed blades. The stirring assembly 12 has a large stirring range and can promote the flow of liquid in the sedimentation tank during rotation, thereby accelerating the mixing of the internal flocculant and improving efficiency.

[0020] See also Figure 4 , brackets 11 are provided at both ends of the stirring component 12, a driven lifting frame 10 is provided at the upper end of the bracket 11, a driving motor 14 is provided inside the driven lifting frame 10, a first transmission belt 15 is provided at the output end of the driving motor 14, a driven shaft 16 is provided at one end of the blade shaft 13, and the driving motor 14 is connected to the driven shaft 16 through the first transmission belt 15, a second transmission belt 17 is provided on the outer wall of the driven shaft 16, and the driven shaft 16 is connected to another driven shaft 16 through the second transmission belt 17 for transmission; through the connection of the first transmission belt 15, the driving motor 14 can drive the driven shaft 16 to rotate, and then through the connection of the second transmission belt 17, the other driven shaft 16 is driven to rotate, so that the stirring components 12 at different levels can all perform rotation and stirring operations.

[0021] See also Figure 1 A first mounting frame 7 and a second mounting frame 8 are respectively mounted on both ends of the driven lifting frame 10 , and a driving member 9 for driving the driven lifting frame 10 to move up and down is arranged on the outer wall of the first mounting frame 7 .

[0022] Embodiment 1

[0023] The driving member 9 uses a cylinder and a piston rod to drive the driven lifting frame 10 to move up and down, and realizes the lifting operation by pneumatic means. Similarly, hydraulic cylinders and electric cylinders can also be used for lifting and moving.

[0024] Embodiment 2

[0025] The driving member 9 may also adopt a lead screw module, which drives the driven lifting frame 10 through a slider in a lead screw transmission manner to achieve up and down lifting displacement.

[0026] Based on the above-mentioned lifting and lowering movement, the height of the stirring component 12 can be adjusted. The stirring position can be changed according to the water level of the sedimentation tank by adjusting the height. The stirring position can be conveniently moved out by lifting, and the removed part can be inspected and replaced without removing the liquid in the sedimentation tank.

[0027] See also Figure 1A lead screw linear module 2 is arranged below the first mounting frame 7, and the lead screw linear module 2 includes a ball screw 3 located in a groove on the upper surface of the sewage sedimentation tank 1, a lead screw motor 4 is arranged at one end of the ball screw 3, a lead screw slider 5 is arranged on the outer wall of the ball screw 3, and the upper surface of the lead screw slider 5 is assembled and installed with the bottom of the first mounting frame 7; the stirring component 12 is driven to move by the lead screw motor 4, the ball screw 3, and the lead screw slider 5, so that the stirring component 12 can perform a mobile stirring operation, expand the stirring range, and can be matched with the rotation of the blade shaft 13 and the blade group 18 during movement to enhance the flow effect of the internal liquid.

[0028] See also Figure 1 A driven moving member 6 is arranged below the second mounting frame 8. Furthermore, the driven moving member 6 can move along with the movement of the lead screw module in the form of a slide groove and a slider. Similarly, the driven moving member 6 can also move along with the movement in the form of a slide rod and a slider, or a guide rail and a slider.

[0029] Working principle: When in use, sewage flows into the sewage sedimentation tank 1 from the sewage inlet 19, and the flocculant is mixed in the flocculant mixing box 21. After mixing, it enters the sewage sedimentation tank 1 from the flocculant inlet 22, and the lead screw linear module 2 is turned on to drive the stirring component 12 to move back and forth in the sedimentation tank. The drive motor 14 is turned on to drive the blade shaft 13 at each level to rotate, so that the blade group 18 on the shaft is driven to mix and stir the flocculant and sewage in the sedimentation tank, and promote the flow of internal liquid during rotation, thereby expanding the stirring range and accelerating the mixing efficiency; the stirring component 12 is driven to be raised and lowered by the driving member 9, so that the stirring component 12 can be positioned at different heights in the sedimentation tank, and stirring operations can be performed at different heights, further expanding the stirring range.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A sedimentation device for treating urban sewage, comprising a sewage sedimentation tank (1), wherein a flocculant mixing box (21) is arranged on the outer wall of one end of the sewage sedimentation tank (1), and a flocculant inlet (22) is arranged between the flocculant mixing box (21) and the sewage sedimentation tank (1), characterized in that: The sewage sedimentation tank (1) is provided with a stirring assembly (12) inside, the stirring assembly (12) comprising a plurality of blade shafts (13) arranged in upper and lower layers, and a plurality of blade groups (18) arranged at intervals are provided on the outer wall of the blade shaft (13), and each blade group (18) is composed of 6 to 8 blades distributed in an annular shape, and brackets (11) are provided at both ends of the stirring assembly (12), and a driven lifting frame (10) is provided at the upper end of the bracket (11), and the driven lifting frame (10) is provided at the upper end of the bracket (11). A driving motor (14) is arranged inside the lowering frame (10), a first transmission belt (15) is arranged at the output end of the driving motor (14), a driven shaft (16) is arranged at one end of the blade shaft (13), and the driving motor (14) is connected to the driven shaft (16) through the first transmission belt (15), a second transmission belt (17) is arranged on the outer wall of the driven shaft (16), and the driven shaft (16) is connected to another driven shaft (16) through the second transmission belt (17).

2. A sedimentation device for urban sewage treatment according to claim 1, characterized in that: A first mounting frame (7) and a second mounting frame (8) are respectively mounted on both ends of the driven lifting frame (10), and a driving member (9) for driving the driven lifting frame (10) to move up and down is arranged on the outer wall of the first mounting frame (7).

3. A sedimentation device for urban sewage treatment according to claim 2, characterized in that: The driving member (9) is driven by any one of a pneumatic cylinder, an electric cylinder and a hydraulic cylinder.

4. A sedimentation device for urban sewage treatment according to claim 2, characterized in that: A screw linear module (2) is arranged below the first mounting frame (7), and the screw linear module (2) comprises a ball screw (3) located in a groove on the upper surface of the sewage sedimentation tank (1), a screw motor (4) is arranged at one end of the ball screw (3), a screw slider (5) is arranged on the outer wall of the ball screw (3), and the upper surface of the screw slider (5) is assembled and installed with the bottom of the first mounting frame (7).

5. A sedimentation device for treating urban sewage according to claim 2, characterized in that: A driven moving member (6) is arranged below the second mounting frame (8), and the driven moving member (6) is moved in any one of a sliding groove slider, a sliding rod slider, and a guide rail slider.

6. A sedimentation device for treating urban sewage according to claim 1, characterized in that: The upper surface of the flocculant mixing box (21) is provided with a stirring motor (23) for stirring the flocculant.

7. A sedimentation device for treating urban sewage according to claim 1, characterized in that: The sewage sedimentation tank (1) is provided with a sewage inlet (19) at the top of one end of the flocculant mixing box (21), and a discharge outlet (20) is provided at the bottom of one end of the sewage sedimentation tank (1) away from the sewage inlet (19).

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