A sewage treatment stirring device

Abstract

The utility model discloses a kind of stirring devices for sewage treatment, including stirring box and auxiliary stirring device, the stirring motor is installed in the middle of stirring box top portion, first air passage is provided in the rotating shaft, second air passage is provided in the stirring rod, the first air passage is communicated with the second air passage, a plurality of release holes are provided on the stirring rod, the auxiliary stirring device includes air pump and air pipe, the stirring box is fixedly installed with wrapping layer outside the rotating shaft, a plurality of through holes are provided on the rotating shaft in the wrapping layer.The beneficial effects of the utility model are that air is introduced into the stirring rod by air pump, then air is introduced into sewage in stirring box through release hole, in the process of stirring rod stirring sewage, gas can be in the shape of helix in stirring box, sewage in stirring box is stirred again using helical gas, improve the mixing effect of sewage and reagent, avoid reagent waste, reduce processing cost.

Description

Technical Field

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

[0002] Wastewater treatment refers to the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly entering the daily lives of ordinary people. Existing wastewater treatment processes often use mixing chambers to react chemical agents with wastewater, which is a process that stirs and reacts organic and inorganic substances in wastewater, causing them to settle.

[0003] However, because the chemicals and sewage are difficult to mix thoroughly, the reaction is insufficient, the chemicals cannot play their full role, the sewage treatment effect does not meet the expected indicators, and the chemicals are wasted, which increases the cost of sewage treatment. Utility Model Content

[0004] In view of the above-mentioned prior art, the present invention provides a stirring device for sewage treatment, which mainly solves the technical problems existing in the background art.

[0005] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows: A stirring device for wastewater treatment includes a stirring tank and an auxiliary stirring device. The stirring tank has a wastewater inlet pipe and a chemical dosing pipe at its top. A stirring motor is installed in the middle of the top of the stirring tank. The output shaft of the stirring motor is fixedly connected to a rotating shaft located inside the stirring tank. A stirring rod is installed on the rotating shaft. A first air passage is provided inside the rotating shaft, and a second air passage is provided inside the stirring rod. The first air passage and the second air passage are connected. The stirring rod has several release holes, which are connected to the stirring tank through the release holes. The auxiliary stirring device includes an air pump and an air pipe. A covering layer is fixedly installed on the outside of the rotating shaft within the stirring tank. The covering layer is rotatably connected to the rotating shaft. The rotating shaft located inside the covering layer has several through holes, and the air pump is connected to the covering layer through the air pipe.

[0006] Preferably, the mixing tank has an air outlet pipe installed on its side wall, which is connected to the purification tank. The purification tank contains purification liquid, and an air outlet is provided on the top of the purification tank.

[0007] Preferably, an activated carbon filter is installed above the purification liquid inside the purification tank.

[0008] Preferably, a breathable membrane is provided at the interface between the air outlet pipe and the mixing tank.

[0009] Preferably, the air pump is connected to the air filter via an air pipe.

[0010] Preferably, the dosing pipe is equipped with a control valve and a flow meter.

[0011] Preferably, a drain pipe is provided at the bottom of the mixing tank, and the drain pipe is connected to the filter device.

[0012] Preferably, the filtration device includes a buffer box and a filter screen, with the filter screen installed inside the buffer box.

[0013] Preferably, the bottom of the buffer box is provided with a groove in front of the filter screen.

[0014] The beneficial effects of this invention are as follows: air is introduced into the stirring rod by an air pump, and then the air is introduced into the sewage in the mixing tank through the release hole. During the process of stirring the sewage by the stirring rod, the gas can form a spiral shape in the mixing tank. The spiral gas is used to stir the sewage in the mixing tank again, which improves the mixing effect of sewage and chemicals, avoids waste of chemicals, and reduces treatment costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a stirring device for sewage treatment in an embodiment of this application.

[0016] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the diagram.

[0017] Figure 3 for Figure 1 An enlarged schematic diagram of part B in the diagram.

[0018] Explanation of icon numbers: 1. Mixing tank; 2. Auxiliary mixing device; 201. Air pump; 202. Air pipe; 3. Sewage inlet pipe; 4. Dosing pipe; 5. Mixing motor; 6. Rotating shaft; 7. Mixing rod; 8. First air passage; 9. Second air passage; 10. Release hole; 11. Coating layer; 12. Through hole; 13. Air outlet pipe; 14. Purification tank; 15. Purification liquid; 16. Air outlet; 17. Activated carbon filter; 18. Breathable membrane; 19. Air filter; 20. Control valve; 21. Flow meter; 22. Drain pipe; 23. Filtration device; 2301. Buffer tank; 2302. Filter screen; 24. Groove. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0020] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0021] Example 1 Please refer to the attached document. Figure 1-3 This application provides a stirring device for wastewater treatment, including a stirring tank 1 and an auxiliary stirring device 2. The stirring tank 1 is provided with a wastewater inlet pipe 3 and a chemical dosing pipe 4 at the top. A stirring motor 5 is installed in the middle of the top of the stirring tank 1. The output shaft of the stirring motor 5 is fixedly connected to a rotating shaft 6 located inside the stirring tank 1. A stirring rod 7 is installed on the rotating shaft 6. A first air passage 8 is provided inside the rotating shaft 6. A second air passage 9 is provided inside the stirring rod 7. The first air passage 8 and the second air passage 9 are connected. A plurality of release holes 10 are provided on the stirring rod 7. The stirring rod 7 is connected to the stirring tank 1 through the release holes 10. The auxiliary stirring device 2 includes an air pump 201 and an air pipe 202. A wrapping layer 11 is fixedly installed on the outside of the rotating shaft 6 in the stirring tank 1. The wrapping layer 11 is rotatably connected to the rotating shaft 6. A plurality of through holes 12 are provided on the rotating shaft 6 located inside the wrapping layer 11. The air pump 201 is connected to the wrapping layer 11 through the air pipe 202.

[0022] In use, sewage is introduced into the mixing tank 1 through the sewage inlet pipe 3. When the sewage in the mixing tank 1 reaches the designated level, the sewage pouring is stopped. Then, the sewage treatment agent is poured into the mixing tank 1 through the dosing pipe 4. The stirring motor 5 is started, driving the rotating shaft 6 and the stirring rod 7 to rotate, stirring the sewage in the mixing tank 1, so that the agent and sewage are mixed to produce sediment. While the stirring rod 7 is rotating, the air pump 201 is started, and external air is introduced into the wrapping layer 11 through the air pipe 202. Then, the air enters the first air channel 8 through the through hole 12 on the rotating shaft 6, then flows to the second air channel 9, and finally enters the sewage in the mixing tank 1 through the release hole 10 on the stirring rod 7. During the stirring of the sewage by the stirring rod 7, the gas can form a spiral shape in the mixing tank 1. The spiral gas is used to further stir the sewage in the mixing tank 1, improving the mixing effect of sewage and agent, avoiding agent waste, and reducing treatment costs. Preferably, a sealing ring is provided at the connection between the wrapping layer 11 and the rotating shaft 6 to prevent air leakage from the wrapping layer 11.

[0023] Specifically, a vent pipe 13 is installed on the side wall of the mixing tank 1, and the vent pipe 13 is connected to the purification tank 14. The purification tank 14 contains a purification liquid 15, and a vent 16 is provided on the top of the purification tank 14. By providing a vent pipe 13 on the top of the mixing tank 1, the gas inside the mixing tank 1 is discharged outside the tank, avoiding excessive gas pressure inside the tank and damage to the tank body. At the same time, the gas inside the mixing tank 1 contains an odor, and the discharged odor gas is discharged into the purification liquid 15 in the purification tank 14 through the vent pipe 13 to purify the odor gas. It is best to discharge it through the vent 16 to prevent harmful gases from being discharged and polluting the air. Preferably, the purification liquid 15 is a NaOH washing solution with pH=8.

[0024] Specifically, an activated carbon filter 2302 is installed above the purification liquid 15 inside the purification box 14. By setting the activated carbon filter 2302 above the purification liquid 15, the purified odor gas is filtered to prevent harmful gases from being released and polluting the air.

[0025] Specifically, a breathable membrane 18 is provided at the interface between the vent pipe 13 and the mixing tank 1. During the mixing process, wastewater is easily splashed into the vent pipe 13. By providing a breathable membrane 18 at the interface of the vent pipe 13, wastewater is prevented from entering the vent pipe 13 and contaminating the purification liquid 15.

[0026] Specifically, the air pump 201 is connected to the air filter 19 via an air pipe. The outside air is filtered by the air filter 19 and then pumped into the mixing tank 1 by the air pump 201, which prevents impurities in the air from entering the sewage, increases the dosage of sewage treatment agents, and reduces sewage treatment costs.

[0027] Specifically, the dosing pipe 4 is equipped with a control valve 20 and a flow meter 21. By installing the control valve 20 and flow meter 21 on the dosing pipe 4, the dosage of wastewater treatment agent entering the mixing tank 1 is controlled to avoid waste.

[0028] Example 2 Please refer to the appendix. Figure 1-3 The difference between this embodiment and Embodiment 1 is that a drain pipe 22 is provided at the bottom of the mixing tank 1, and the drain pipe 22 is connected to the filter device 23. Wastewater after mixing is discharged from the mixing tank 1 through the drain pipe 22 at the bottom of the mixing tank 1. The wastewater is filtered by the filter device 23 to remove solid impurities, and the filtered water is discharged through the filter device 23. Preferably, a solenoid valve is provided on the drain pipe 22 to control the discharge of wastewater from the mixing tank 1.

[0029] Specifically, the filtration device 23 includes a buffer tank 2301 and a filter screen 2302, with the filter screen 2302 installed inside the buffer tank 2301. The drain pipe 22 discharges wastewater from the mixing tank 1 into the buffer tank 2301. The filter screen 2302 inside the buffer tank 2301 intercepts solid impurities in the wastewater. The filtered water is then discharged outside the buffer tank 2301 through its outlet for further wastewater treatment.

[0030] Specifically, a groove 24 is provided at the bottom of the buffer box 2301 in front of the filter screen 2302. By providing a groove 24 at the bottom of the buffer box 2301, solid impurities intercepted by the filter screen 2302 are settled and collected, facilitating subsequent cleaning.

[0031] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. A stirring device for wastewater treatment, characterized in that, The device includes a mixing tank and an auxiliary mixing device. The top of the mixing tank is equipped with a wastewater inlet pipe and a chemical dosing pipe. A mixing motor is installed in the middle of the top of the mixing tank. The output shaft of the mixing motor is fixedly connected to a rotating shaft located inside the mixing tank. A mixing rod is installed on the rotating shaft. A first air passage is provided inside the rotating shaft, and a second air passage is provided inside the mixing rod. The first air passage and the second air passage are connected. Several release holes are provided on the mixing rod, which is connected to the mixing tank through the release holes. The auxiliary mixing device includes an air pump and an air pipe. A wrapping layer is fixedly installed on the outside of the rotating shaft within the mixing tank. The wrapping layer is rotatably connected to the rotating shaft. Several through holes are provided on the rotating shaft located inside the wrapping layer. The air pump is connected to the wrapping layer through the air pipe.

2. The stirring device for wastewater treatment according to claim 1, characterized in that, The mixing tank is equipped with an air outlet pipe on its side wall, which is connected to the purification tank. The purification tank contains purification liquid, and an air outlet is provided on the top of the purification tank.

3. The stirring device for wastewater treatment according to claim 2, characterized in that, An activated carbon filter is installed above the purification liquid inside the purification chamber.

4. The stirring device for wastewater treatment according to claim 2, characterized in that, A breathable membrane is provided at the interface between the air outlet pipe and the mixing tank.

5. A stirring device for wastewater treatment according to claim 1, characterized in that, The air pump is connected to the air filter via an air pipe.

6. A stirring device for wastewater treatment according to claim 1, characterized in that, The dosing pipe is equipped with a control valve and a flow meter.

7. A stirring device for wastewater treatment according to claim 1, characterized in that, The bottom of the mixing tank is equipped with a drain pipe, which is connected to the filter device.

8. A stirring device for wastewater treatment according to claim 7, characterized in that, The filtration device includes a buffer box and a filter screen, with the filter screen installed inside the buffer box.

9. A stirring device for wastewater treatment according to claim 8, characterized in that, The bottom of the buffer box has a groove located in front of the filter screen.

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