Sludge settling separation device

Abstract

The utility model discloses a sludge settling separation device which comprises a settling tank, a stirring assembly, a feeding assembly and a liquid storage tank, a truss is fixedly arranged on the surface of the settling tank, the stirring assembly is fixedly arranged on the surface of a dilution cabin, and the stirring assembly comprises a driving motor, a main shaft rod, and a sludge scraping paddle and a stirring paddle which are fixed on the surface of the main shaft rod; a dilution cabin sleeving the periphery of the stirring paddle is arranged on the bottom surface of the truss, and the feeding assembly is mounted on the bottom surface of the sedimentation tank. According to the utility model, by arranging the sludge settling separation tank body structure, in the process that sewage passes through the interior of the settling tank, the driving motor is used for driving the sludge scraping paddle and the stirring paddle to rotate so as to respectively disperse a flocculating agent in the sewage and dilute the flocculating agent and the sewage; it is ensured that the concentrated flocculant can be widely distributed in sewage for all-around flocculating settling, and the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sludge sedimentation and separation device. Background Technique

[0002] Chemical sludge sedimentation and separation is achieved by adding chemical agents (such as flocculants, coagulants, etc.) to sewage, causing suspended particles to aggregate into larger lumps, thereby increasing the sedimentation rate of solid particles and realizing solid-liquid separation. This method is suitable for treating sewage with a high turbidity. The sludge sedimentation and separation device usually promotes the precipitation of sludge by adding flocculant agents to sewage. The role of the flocculant is to aggregate tiny suspended particles into larger lumps, making it easier for them to settle. Common flocculants include polyaluminum chloride (PAC), polyferric sulfate (PFS), etc. These flocculants cause suspended solid particles to bind together to form larger lumps through functions such as charge neutralization, adsorption, and coagulation, enabling them to settle to the bottom of the water and achieving the separation of sludge.

[0003] The existing sludge sedimentation and separation mainly rely on manual feeding in the sewage tank. The feeding area is close to the edge of the sewage tank, and the action area is concentrated. The flocculant is dispersed through the movement of water flow. The feeding method is simple, but the operation of manually weighing and controlling the dosage of materials is cumbersome. In view of this, in response to the existing problems, research and improvement are carried out, and a sludge sedimentation and separation device is provided to solve the current problems, aiming to achieve the purpose of solving problems and improving practical value through this technology. Content of the Utility Model

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] For this reason, the technical solution adopted by the utility model is as follows: a sludge sedimentation and separation device, including: a sedimentation tank, a stirring assembly, a feeding assembly, and a liquid storage tank. A truss is fixedly installed on the surface of the sedimentation tank. The stirring assembly is fixedly installed on the surface of the dilution tank. The stirring assembly includes a driving motor, a main shaft rod, and a sludge scraping paddle and a stirring paddle fixed on the surface of the main shaft rod. A dilution tank sleeved on the outer periphery of the stirring paddle is provided at the bottom surface of the truss. The feeding assembly is fixedly installed on the bottom surface of the sedimentation tank and is connected to the inner cavity of the dilution tank at one end. The feeding assembly includes a pumping motor, a feeding pipe, a pump push pipe, and a screw rod rotatably sleeved inside the pump push pipe. A pumping cavity is provided inside the pump push pipe. The top surface of the feeding pipe is connected to the bottom end of the liquid storage tank, and one end of the feeding pipe is connected to the end of the screw rod.

[0006] In a preferred example of the utility model, it can be further configured as follows: the bottom surface of the sedimentation tank is in a conical structure, and the bottom surface of the sludge scraping paddle is in a V shape and is slidably fitted with the bottom surface of the inner cavity of the sedimentation tank.

[0007] In a preferred embodiment, the present utility model can be further configured as follows: the dilution chamber has a cylindrical sleeve structure, and the dilution chamber and the main shaft are located on the central axis of the sedimentation tank.

[0008] In a preferred embodiment, the present utility model can be further configured as follows: a drain pipe near the top end of the sedimentation tank is provided on the surface of the sedimentation tank for discharging the supernatant inside the sedimentation tank, and a sewage pump for discharging sludge is fixedly connected to the bottom end of the sedimentation tank.

[0009] In a preferred embodiment, the present utility model can be further configured as follows: the liquid storage tank has a sealed tank body structure, and a flocculant for sewage treatment is filled inside. The inside of the liquid storage tank is in a positive pressure state for the positive pressure discharge of the flocculant.

[0010] In a preferred embodiment, the present utility model can be further configured as follows: the screw rod has a metal spiral rod structure, the pumping chamber is a rubber material component and the inner side is a spiral tube shape, and the pitch is equal to the pitch of the screw rod, and the inner diameter is larger than the diameter of the screw rod.

[0011] The beneficial effects achieved by the present utility model are as follows:

[0012] 1. In the present utility model, by setting the sludge sedimentation and separation tank body structure, during the process of sewage passing through the sedimentation tank, the driving motor is used to drive the sludge scraping paddle and the stirring paddle to rotate respectively to disperse the flocculant in the sewage and dilute the flocculant with the sewage, ensuring that the concentrated flocculant can be widely distributed in the sewage for all-round flocculation sedimentation, and improving the sewage treatment efficiency.

[0013] 2. In the present utility model, by setting the feeding assembly and the liquid storage tank structure, the pumping motor is used to drive the screw rod to rotate, and cooperate with the pump push pipe to pump and feed the concentrated flocculant solution. By programming to control the starting time, rotation speed and number of rotation circles of the pumping motor, the addition amount of the flocculant can be accurately controlled, realizing automatic feeding and reducing the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0015] Figure 2 is a schematic cross-sectional structure diagram of an embodiment of the present utility model;

[0016] Figure 3 is a schematic cross-sectional structure diagram of the feeding assembly of an embodiment of the present utility model;

[0017] Figure 4 is a schematic diagram of the structure of the screw rod and the pumping chamber of an embodiment of the present utility model.

[0018] Reference numerals:

[0019] 100, sedimentation tank; 110, truss; 120, dilution tank; 200, stirring assembly; 210, drive motor; 220, main shaft rod; 230, sludge scraping paddle; 240, stirring paddle; 300, feeding assembly; 310, pumping motor; 320, feeding pipe; 330, pumping pipe; 340, screw; 331, pumping chamber; 400, liquid storage tank. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in combination with the specific implementation manners and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments may be combined with each other.

[0021] The following describes a sludge sedimentation and separation device provided by some embodiments of the present utility model with reference to the accompanying drawings.

[0022] Combined with Figures 1-4 As shown in the figure, a sludge sedimentation and separation device provided by the present utility model includes: a sedimentation tank 100, a stirring assembly 200, a feeding assembly 300 and a liquid storage tank 400. A truss 110 is fixedly installed on the surface of the sedimentation tank 100. The stirring assembly 200 is fixedly installed on the surface of the dilution tank 120. The stirring assembly 200 includes a drive motor 210, a main shaft rod 220, and a sludge scraping paddle 230 and a stirring paddle 240 fixed on the surface of the main shaft rod 220. A dilution tank 120 sleeved on the outer periphery of the stirring paddle 240 is provided on the bottom surface of the truss 110. The feeding assembly 300 is fixedly installed on the bottom surface of the sedimentation tank 100 and one end thereof is communicated with the inner cavity of the dilution tank 120. The feeding assembly 300 includes a pumping motor 310, a feeding pipe 320, a pumping pipe 330, and a screw 340 rotatably sleeved inside the pumping pipe 330. A pumping chamber 331 is provided inside the pumping pipe 330. The top surface of the feeding pipe 320 is communicated with the bottom end of the liquid storage tank 400, and one end of the feeding pipe 320 is communicated with the end of the screw 340.

[0023] In this embodiment, the bottom surface of the sedimentation tank 100 has a conical structure, and the bottom surface of the sludge scraping paddle 230 is V-shaped and slidably fits with the bottom surface of the inner cavity of the sedimentation tank 100.

[0024] Specifically, the use of a conical bottom bin facilitates the sedimentation and discharge of sludge.

[0025] In this embodiment, the dilution tank 120 has a cylindrical sleeve structure, and the dilution tank 120 and the main shaft rod 220 are located on the central axis of the sedimentation tank 100.

[0026] In this embodiment, a drain pipe near the top end of the sedimentation tank 100 is provided on the surface of the sedimentation tank 100 for discharging the supernatant inside the sedimentation tank 100, and a sewage pump for discharging sludge is fixedly connected to the bottom end of the sedimentation tank 100.

[0027] Specifically, the separation and discharge of the water liquid and the sediment sludge are carried out through the discharge structures on the upper and lower sides.

[0028] In this embodiment, the liquid storage tank 400 is a sealed tank structure, and a flocculant for sewage treatment is filled inside. The inside of the liquid storage tank 400 is in a positive pressure state for the positive pressure discharge of the flocculant.

[0029] In this embodiment, the screw 340 is a metal spiral rod structure, the pumping chamber 331 is a rubber material component and the inner side is a spiral tube shape, and the pitch is equal to the pitch of the screw 340, and the inner diameter is larger than the diameter of the screw 340.

[0030] Specifically, the flocculant is released and discharged by the rotation of the screw 340 inside the pumping chamber 331.

[0031] The working principle and usage process of the present utility model:

[0032] In sewage treatment, the water liquid is pumped into the sedimentation tank 100 for treatment. During the operation of the feeding assembly 300, the pumping motor 310 drives the screw 340 to rotate inside the pumping chamber 331 to pump and feed the concentrated flocculant liquid inside the liquid storage tank 400. By programming the start time, rotation speed and number of rotation circles of the pumping motor 310, the addition amount of the flocculant can be accurately controlled to achieve automatic quantitative feeding; during the rotation of the sludge scraping paddle 230 and the stirring paddle 240, the sludge is affected by centrifugal swirling, and the water liquid inside the dilution chamber 120 remains relatively clear with less mud content; after the flocculant enters the inside of the dilution chamber 120, it contacts with this water liquid, and is diluted and dispersed by mixing with the sewage during the stirring of the stirring paddle 240. During the stirring movement of the sludge scraping paddle 230 and the stirring paddle 240, the water flow movement efficiency inside the sedimentation tank 100 is improved, so that the diluted liquid inside the dilution chamber 120 is dispersed again with the sewage inside the sedimentation tank 100 and undergoes a flocculation reaction with sludge impurities, etc. The treated water liquid and the sediment sludge are separated by the separation method of the supernatant layer. The program closes the operation of the stirring assembly 200 for static sedimentation; after the sedimentation is completed, the separated supernatant liquid and the sludge sediment can be obtained.

[0033] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A sludge sedimentation and separation device, characterized in that, Including: A sedimentation tank (100), a stirring assembly (200), a feeding assembly (300), and a liquid storage tank (400). A truss (110) is fixedly installed on the surface of the sedimentation tank (100). The stirring assembly (200) is fixedly installed on the surface of a dilution chamber (120). The stirring assembly (200) includes a driving motor (210), a main shaft rod (220), a sludge scraping paddle (230) and a stirring paddle (240) fixed on the surface of the main shaft rod (220). A dilution chamber (120) sleeved on the outer periphery of the stirring paddle (240) is provided at the bottom surface of the truss (110). The feeding assembly (300) is fixedly installed on the bottom surface of the sedimentation tank (100) and one end is communicated with the inner cavity of the dilution chamber (120). The feeding assembly (300) includes a pumping motor (310), a feeding pipe (320), a pump pushing pipe (330), and a screw rod (340) rotatably sleeved inside the pump pushing pipe (330). A pumping cavity (331) is provided inside the pump pushing pipe (330). The top surface of the feeding pipe (320) is communicated with the bottom end of the liquid storage tank (400), and one end of the feeding pipe (320) is communicated with the end of the screw rod (340).

2. The sludge sedimentation and separation device according to claim 1, characterized in that The bottom surface of the sedimentation tank (100) is of a conical structure, and the bottom surface of the sludge scraping paddle (230) is V-shaped and slidably fits with the bottom surface of the inner cavity of the sedimentation tank (100).

3. A sludge sedimentation and separation device according to claim 1, characterized in that, The dilution chamber (120) is of a cylindrical sleeve structure, and the dilution chamber (120) and the main shaft rod (220) are located on the central axis of the sedimentation tank (100).

4. A sludge sedimentation and separation device according to claim 1, characterized in that, A drain pipe near the top end of the sedimentation tank (100) is provided on the surface of the sedimentation tank (100) for discharging the supernatant inside the sedimentation tank (100), and a sewage pump for discharging sludge is fixedly connected to the bottom end of the sedimentation tank (100).

5. A sludge sedimentation and separation device according to claim 1, characterized in that, The liquid storage tank (400) is of a sealed tank structure, and a flocculant for sewage treatment is filled inside. The inside of the liquid storage tank (400) is in a positive pressure state for positive pressure discharge of the flocculant.

6. A sludge sedimentation and separation device according to claim 1, characterized in that, The screw rod (340) is of a metal spiral rod structure. The pumping cavity (331) is a rubber material component and the inner side is of a spiral tubular shape, and the pitch is equal to the pitch of the screw rod (340), and the inner diameter is larger than the diameter of the screw rod (340).

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