Sewage treatment system

Abstract

The utility model belongs to the field of sewage treatment, and relates to a sewage treatment system. The sewage treatment system comprises a sewage treatment tank, a liquid adding cylinder and an aerator, the liquid adding cylinder is fixed on the sewage treatment tank and is used for storing sewage treatment liquid, the liquid outlet end of the liquid adding cylinder is connected with a liquid outlet pipe, the liquid outlet end of the liquid outlet pipe extends into the sewage treatment tank and is provided with a spray head, and the aerator is communicated with an inner cavity of the sewage treatment tank through a first air pipe; the aeration machine is communicated with the spray head through a gas pipe II and is used for conveying gas into the spray head. The aeration machine pushes the sewage treatment liquid to be sprayed out of the spray head by conveying gas into the spray head, the spraying area is larger, the spraying distance is wider, and therefore sewage in the sewage treatment pool can be treated more quickly, and the treatment efficiency is higher.

Description

Technical Field

[0001] This application belongs to the field of sewage treatment and relates to a sewage treatment system. Background Art

[0002] Beverage factories mainly produce carbonated beverages, fruit and vegetable beverages, and dairy beverages. Among the pollutants in the production wastewater of these beverages, the production wastewater of beverages comes from bottle washing wastewater, raw material cleaning wastewater, machine equipment production workshop cleaning wastewater, cleaning tank wastewater, and sugar dissolving tank wastewater. Among them, beverage liquid is the main source of wastewater.

[0003] The wastewater pollutants in beverage liquid are mainly dominated by organic compounds, and the microbial method is mainly used for treatment, that is, by adding decomposition microorganisms to the wastewater in the beverage liquid and mixing the added acid and alkali liquids with the wastewater. It is necessary to fully mix the added reagents with the sewage and adjust the pH value of the sewage to meet the suitable living environment for the decomposition microorganisms.

[0004] Patent CN219384913U discloses a sewage treatment system, including a sewage treatment tank. There is a sewage inlet on the right side of the sewage treatment tank. There is a support plate above the left side of the sewage treatment tank. An aerator and a decomposition bacteria box are arranged on the support plate. There is a communication port opened at the lower left part of the sewage treatment tank. An aeration mixing component is arranged at the inner bottom of the sewage treatment tank. An aeration pipe is connected to the aerator, and the other end of the aeration pipe passes through the communication port and is connected to the aeration mixing component. A detachable cover plate is arranged above the sewage treatment tank, and a pH adjustment component is arranged on the cover plate.

[0005] The pH adjustment component in the above sewage treatment system flows into the sewage treatment tank through a pipeline. The volume of the sewage treatment tank is much larger than the cross-sectional area of the pipeline. The pH value of the sewage cannot be adjusted quickly and evenly. The pH value near the pipeline reaches the expected value, but the pH value of the sewage in other areas remains unchanged, resulting in greater difficulty in adjusting the pH value in the sewage treatment tank and lower sewage treatment efficiency. Utility Model Content

[0006] In order to improve the sewage treatment efficiency, this application provides a sewage treatment system.

[0007] The sewage treatment system provided by this application adopts the following technical solutions:

[0008] A sewage treatment system, including:

[0009] A sewage treatment tank;

[0010] A liquid adding cylinder, which is fixed on the sewage treatment tank and is used for storing sewage treatment liquid. The liquid outlet end of the liquid adding cylinder is connected with a liquid outlet pipe, and the liquid outlet end of the liquid outlet pipe extends into the sewage treatment tank and is provided with a spray head;

[0011] An aerator, which is connected to the inner cavity of the sewage treatment tank through a first air pipe and is used to convey gas to the sewage in the sewage treatment tank. The aerator is connected to the spray head through a second air pipe and is used to convey gas into the spray head.

[0012] By adopting the above technical solution, the sewage generated by beverage processing flows into the sewage treatment tank. The aerator is turned on to convey gas to the sewage in the sewage treatment tank, so that the harmful substances in the sewage are oxidized and decomposed. At the same time, the sewage treatment liquid in the liquid adding cylinder flows into the spray head, and the aerator conveys gas into the spray head, pushing the sewage treatment liquid to spray out from the spray head, with a larger spraying area and a wider distance, so that the sewage in the sewage treatment tank can be treated faster and with higher treatment efficiency.

[0013] Preferably, the aerator includes an aeration cylinder body and a motor. An impeller shaft is rotatably arranged in the aeration cylinder body. An aeration impeller is fixed on the impeller shaft. The motor is connected to the impeller shaft through a gear set.

[0014] By adopting the above technical solution, the motor drives the impeller shaft to rotate through the gear set, so that the aeration impeller rotates. Negative pressure is generated by high-speed rotation to suck in external air and convey it to the sewage treatment tank and the spray head.

[0015] Preferably, a stirring shaft is rotatably arranged in the sewage treatment tank. Stirring blades are fixed on the stirring shaft. The motor is connected to the stirring shaft through a transmission device.

[0016] By adopting the above technical solution, the motor drives the stirring shaft to rotate through the transmission device, so that the stirring blades rotate. The sewage treatment liquid dripping from the liquid adding cylinder can be evenly dispersed under stirring. At the same time, the stirring blades will lift part of the sewage into the air and integrate it with the oxygen in the air, playing an aeration role.

[0017] Preferably, an electric valve one for controlling on-off is arranged on the liquid outlet pipe, and an electric valve two for controlling on-off is arranged on the second air pipe. The spray head has an inner cavity communicated with the liquid outlet pipe, and the end of the spray head has spray holes communicated with the inner cavity. Both the electric valve one and the electric valve two are connected to a controller.

[0018] By adopting the above technical solution, when it is necessary to add sewage treatment liquid, the controller is used to drive the electric valve one to open, so that the sewage treatment liquid in the liquid adding cylinder flows through the liquid outlet pipe into the inner cavity of the spray head. Then the electric valve one is closed, and the electric valve two is driven to open, so that the gas of the aerator is conveyed to the inner cavity of the spray head, driving the sewage treatment liquid in the inner cavity to be sprayed from the spray holes into the sewage treatment tank, with a wider spraying area and a farther distance.

[0019] Preferably, there are two liquid adding cylinders, which are symmetrically distributed about the central line of the sewage treatment tank. One liquid adding cylinder is used to store acidic liquid, and the other liquid adding cylinder is used to store alkaline liquid.

[0020] By adopting the above technical solution, the liquid adding cylinder adds acidic liquid or alkaline liquid to the sewage treatment tank, which can keep the sewage in the sewage treatment tank at a better pH value. In the process of beverage sewage treatment, many treatment processes have certain requirements for the pH value of sewage. Some biological treatment processes need to be carried out within a specific pH value range to ensure the activity of microorganisms. Highly acidic or highly alkaline sewage may cause corrosion to equipment and pipelines, reducing their service life. By adjusting the pH value of the sewage, the corrosion of equipment and pipelines can be reduced, and their service life can be extended.

[0021] Preferably, a filter grille is arranged at the opening of the sewage treatment tank.

[0022] By adopting the above technical solution, the filter grille can filter out some impurities, improve the efficiency of sewage treatment in the sewage treatment tank, and reduce the risk of blockage in subsequent processes.

[0023] Preferably, a blow pipe is fixed in the sewage treatment tank. The blow pipe is located below the filter grille, and the blow pipe has air outlet holes facing the filter grille. The aeration cylinder body is communicated with the blow pipe through a third air pipe.

[0024] By adopting the above technical solution, when the filter grille is blocked, the aeration cylinder body can convey gas to the blow pipe, and blow up the impurities at the filter grille through the air outlet holes, ensuring that the sewage can flow into the sewage treatment tank normally.

[0025] Preferably, a filter net is arranged below the filter grille.

[0026] By adopting the above technical solution, the filter net is provided to further filter the sewage and reduce the risk of blockage in subsequent processes.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The aerator conveys gas into the nozzle, pushing the sewage treatment liquid to spray out from the nozzle, with a larger spraying area and a wider spraying distance, so that the sewage in the sewage treatment tank can be treated faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of an embodiment of the present application.

[0030] Figure 2 is a top view of an embodiment of the present application.

[0031] Figure 3 is Figure 2 A sectional view taken along line A-A in the figure.

[0032] Explanation of reference numerals: 1, sewage treatment tank; 11, fixing plate; 2, liquid adding cylinder; 21, liquid outlet pipe; 22, spray head; 23, electric valve I; 24, inner cavity; 3, aerator; 31, air pipe I; 32, air pipe II; 33, aeration head; 34, aeration cylinder body; 35, motor; 36, air pipe III; 37, air blowing pipe; 38, air outlet hole; 4, stirring shaft; 5, stirring blade; 6, transmission device; 61, driving pulley; 62, driven pulley; 63, transmission belt; 7, filter grille. Detailed implementation manners

[0033] The following further elaborates on this application Figures 1-3 in conjunction with the attached drawings.

[0034] As Figure 1 , Figure 2 , Figure 3 shown, the sewage treatment system includes a sewage treatment tank 1, a liquid adding cylinder 2 and an aerator 3.

[0035] Specifically, the liquid adding cylinder 2 is fixed on the sewage treatment tank 1 and is used for storing sewage treatment liquid.

[0036] In this embodiment, a fixing plate 11 is provided at the opening edge of the sewage treatment tank 1, and the liquid adding cylinder 2 is arranged on the fixing plate 11.

[0037] As another solution, the liquid adding cylinder 2 can also be directly fixed on the side wall of the sewage treatment tank 1.

[0038] Preferably, there are two liquid adding cylinders 2, which are symmetrically distributed about the center line of the sewage treatment tank 1 and are located on both sides of the sewage treatment tank 1. One liquid adding cylinder 2 is used for storing acidic liquid, and the other liquid adding cylinder 2 is used for storing alkaline liquid.

[0039] As Figure 1 , Figure 3 shown, the liquid outlet end of the liquid adding cylinder 2 is connected with a liquid outlet pipe 21, and the liquid outlet end of the liquid outlet pipe 21 extends into the sewage treatment tank 1 and is provided with a spray head 22.

[0040] Specifically, the liquid outlet pipe 21 is provided with an electric valve I 23 for controlling on-off. The spray head 22 has an inner cavity 24 communicated with the liquid outlet pipe 21, and the end of the spray head 22 has a spray hole communicated with the inner cavity 24. The electric valve I 23 is connected to the controller.

[0041] The sewage treatment tank 1 is also provided with a PH detection sensor, which is connected to the controller. When the PH detection sensor detects that the PH value in the sewage treatment tank 1 deviates from the normal range, it sends a signal to the controller, and the controller sends an opening instruction to the electric valve 23, so that the sewage treatment liquid in the liquid adding cylinder 2 is sprayed into the sewage through the nozzle 22.

[0042] As Figure 1 , Figure 3 shown in the figure, the aerator 3 is connected to the inner cavity 24 of the sewage treatment tank 1 through the first air pipe 31, and is used to convey gas to the sewage in the sewage treatment tank 1. The aerator 3 is connected to the nozzle 22 through the second air pipe 32, and is used to convey gas into the nozzle 22. The second air pipe 32 is provided with an electric valve for controlling on-off, and the electric valve is connected to the controller.

[0043] In this embodiment, the first air pipe 31 extends into the sewage treatment tank 1 and is evenly provided with a plurality of aeration heads 33.

[0044] Preferably, the aerator 3 includes an aeration cylinder body 34 and a motor 35. An impeller shaft is rotatably arranged in the aeration cylinder body 34. An aeration impeller is fixed on the impeller shaft. The motor 35 is connected to the impeller shaft through a gear set, and the motor 35 drives the impeller shaft to rotate through the gear set, so that the aeration impeller rotates.

[0045] As Figure 1 , Figure 3 shown in the figure, a stirring shaft 4 is rotatably arranged in the sewage treatment tank 1. Stirring blades 5 are fixed on the stirring shaft 4. The motor 35 is connected to the stirring shaft 4 through a transmission device 6.

[0046] In this embodiment, the transmission device 6 includes a driving pulley 61, a driven pulley 62 and a transmission belt 63. The driving pulley 61 is fixed on the output shaft of the motor 35, the driven pulley 62 is fixed on the stirring shaft 4, and the transmission belt 63 is wound around the driving pulley 61 and the driven pulley 62.

[0047] As another solution, the transmission device 6 can also be set as a gear pair.

[0048] As Figure 1 , Figure 3 shown in the figure, a filter grille 7 is arranged at the opening of the sewage treatment tank 1. A blowing air pipe 37 is fixed in the sewage treatment tank 1. The blowing air pipe 37 is located below the filter grille 7 and has air outlet holes 38 facing the filter grille 7. The aeration cylinder body 34 is connected to the blowing air pipe 37 through a third air pipe 36. When the filter grille 7 is blocked, the aeration cylinder body 34 can convey gas to the blowing pipe, and blow up the impurities at the filter grille 7 through the air outlet holes 38 to ensure that the sewage can flow into the sewage treatment tank 1 normally.

[0049] In this embodiment, the blowing pipe 37 is inclined so that when the impurities in the filter grille 7 are blown up, they float towards the side, and a storage box can be arranged at the corresponding position for storing impurities.

[0050] To improve the filtering effect, a filter screen is arranged below the filter grille 7. When the filter screen is provided, the blowing pipe 37 can also blow away the impurities on the filter screen to prevent the filter screen from being blocked.

[0051] The working principle of this embodiment is as follows: The sewage generated by beverage processing flows into the sewage treatment tank 1. The aerator 3 is turned on to deliver gas to the sewage in the sewage treatment tank 1, so that the harmful substances in the sewage are oxidized and decomposed. When the PH detection sensor detects that the PH value in the sewage treatment tank 1 deviates from the normal range, it sends a signal to the controller. The controller drives the first electric valve 23 to open, so that the sewage treatment liquid in the liquid adding cylinder 2 flows through the liquid outlet pipe 21 into the inner cavity 24 of the spray head 22, and then closes the first electric valve 23 and drives the second electric valve to open, so that the gas of the aerator 3 is delivered to the inner cavity 24 of the spray head 22, and drives the sewage treatment liquid in the inner cavity 24 to be sprayed from the spray holes into the sewage treatment tank 1. At the same time, the motor 35 drives the stirring shaft 4 to rotate through the transmission device 6, so that the stirring blades 5 rotate. The sewage treatment liquid dripping from the liquid adding cylinder 2 can be evenly dispersed under stirring. At the same time, the stirring blades 5 will lift part of the sewage into the air to integrate with the oxygen in the air, playing an aeration role.

[0052] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A sewage treatment system, characterized in that, Including: Sewage treatment tank (1); Liquid adding cylinder (2), the liquid adding cylinder (2) is fixed on the sewage treatment tank (1) and is used for storing sewage treatment liquid. The liquid outlet end of the liquid adding cylinder (2) is connected with a liquid outlet pipe (21), and the liquid outlet end of the liquid outlet pipe (21) extends into the sewage treatment tank (1) and is provided with a spray head (22); Aerator (3), the aerator (3) is communicated with the inner cavity (24) of the sewage treatment tank (1) through an air pipe one (31) and is used for conveying gas to the sewage in the sewage treatment tank (1). The aerator (3) is communicated with the spray head (22) through an air pipe two (32) and is used for conveying gas into the spray head (22).

2. The sewage treatment system according to claim 1, characterized in that The aerator (3) includes an aeration cylinder body (34) and a motor (35). An impeller shaft is rotatably arranged in the aeration cylinder body (34), an aeration impeller is fixed on the impeller shaft, and the motor (35) is connected with the impeller shaft through a gear set.

3. The sewage treatment system according to claim 2, characterized in that A stirring shaft (4) is rotatably arranged in the sewage treatment tank (1), a stirring blade (5) is fixed on the stirring shaft (4), and the motor (35) is connected with the stirring shaft (4) through a transmission device (6).

4. The sewage treatment system according to claim 2, characterized in that, The liquid outlet pipe (21) is provided with an electric valve one (23) for controlling on-off, the air pipe two (32) is provided with an electric valve two for controlling on-off. The spray head (22) has an inner cavity (24) communicated with the liquid outlet pipe (21), and the end of the spray head (22) has spray holes communicated with the inner cavity (24). Both the electric valve one (23) and the electric valve two are connected with a controller.

5. The sewage treatment system according to claim 1, wherein There are two liquid adding cylinders (2), and they are symmetrically distributed about the central line of the sewage treatment tank (1). One liquid adding cylinder (2) is used for storing acidic liquid, and the other liquid adding cylinder (2) is used for storing alkaline liquid.

6. The sewage treatment system according to claim 2, wherein A filter grille (7) is arranged at the opening of the sewage treatment tank (1).

7. The sewage treatment system according to claim 6, characterized in that, A blow pipe (37) is fixed in the sewage treatment tank (1). The blow pipe (37) is located below the filter grille (7), and the blow pipe (37) has air outlet holes (38) facing the filter grille (7). The aeration cylinder body (34) is communicated with the blow pipe (37) through an air pipe three (36).

8. The sewage treatment system according to claim 6, characterized in that, A filter net is arranged below the filter grille (7).

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