A recovery device for high-ammonia-nitrogen organic wastewater

Abstract

The utility model discloses a kind of recovery devices of high ammonia nitrogen organic wastewater, belong to wastewater treatment technical field, a kind of recovery device of high ammonia nitrogen organic wastewater, including processing jar, waste water inlet pipe and gas outlet pipe being connected on the side wall of the processing jar, waste water outlet pipe being connected on the bottom of the processing jar and discharge valve being installed on the waste water outlet pipe, the top of the processing jar is equipped with booster cylinder, the side wall root of the booster cylinder is connected with exhaust pipe in communication, check valve is installed on the exhaust pipe, the top of the booster cylinder is equipped with speed reducer by support, the top mouth part of the booster cylinder is fixedly connected with first connecting frame, it is inhaled by air and guided by helical blade, forms rotating air current, in acceleration section, air is accelerated under the action of helical blade and forms high pressure air current, finally is discharged through exhaust pipe, by pressurizing gas, energy consumption can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a device for recovering high ammonia nitrogen organic wastewater. Background Technology

[0002] Ammonia nitrogen is a common pollutant in wastewater, mainly originating from domestic sewage, landfill leachate, food processing, chemical industry, and aquaculture. High concentrations of ammonia nitrogen emissions not only cause eutrophication pollution of water bodies but also deplete dissolved oxygen and harm aquatic ecosystems. Therefore, effectively removing ammonia nitrogen from wastewater is of great significance for environmental protection and water resource recycling.

[0003] Air stripping is suitable for treating high-concentration ammonia nitrogen wastewater (>1000 mg / L). By adjusting the wastewater pH to alkaline and introducing air or steam into the tower-type unit, NH4+ is removed. + The wastewater is converted into NH3 gas and then stripped off, and then recovered as ammonium salt through acid absorption. However, this method requires a high-power fan, resulting in high energy consumption and room for improvement. Therefore, we propose a high-ammonia nitrogen organic wastewater recovery device to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a recovery device for high ammonia nitrogen organic wastewater. It draws in air and guides it through spiral blades to form a rotating airflow. In the acceleration section, the air is accelerated by the spiral blades and forms a high-pressure airflow, which is finally discharged through the exhaust pipe. By pressurizing the gas, energy consumption can be effectively reduced.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A device for recovering high ammonia nitrogen organic wastewater includes a treatment tank, a wastewater inlet pipe and a gas outlet pipe connected to the side wall of the treatment tank, a wastewater outlet pipe connected to the bottom of the treatment tank, and a discharge valve installed on the wastewater outlet pipe. A booster cylinder is installed on the top of the treatment tank, and an exhaust pipe is connected to the root of the side wall of the booster cylinder. A check valve is installed on the exhaust pipe.

[0009] A geared motor is mounted on the top of the booster cylinder via a bracket;

[0010] The top opening of the booster cylinder is fixedly connected to a first connecting frame. The middle part of the first connecting frame is rotatably connected to a first shaft via a bearing. The top end of the first shaft is connected to the power output shaft of the geared motor via a coupling. A fan blade is installed on the outer wall of the first shaft. A driving bevel gear is installed at the bottom end of the first shaft. The inner wall of the booster cylinder is rotatably connected to a first driven bevel gear that meshes with the driving bevel gear.

[0011] A second connecting frame is fixedly connected to the lower part of the first connecting frame, and there are two second connecting frames. A second shaft is rotatably connected between the two second connecting frames through a bearing. A second driven bevel gear that meshes with the first driven bevel gear is installed at the top of the second shaft. A spiral blade is welded to the outer wall of the second shaft.

[0012] An acceleration section is provided below the helical blades.

[0013] Furthermore, a pH value detection sensor with a probe extending into the inner cavity of the treatment tank is installed on one side of the top of the pressurizing cylinder.

[0014] Furthermore, the side wall of the treatment tank is also connected to a dosing pipe, and shut-off valves are installed on the dosing pipe, the wastewater inlet pipe, and the gas outlet pipe.

[0015] Furthermore, the outer diameter of the spiral blade is adapted to the inner diameter of the booster cylinder.

[0016] Furthermore, the bottom end of the pressurizing cylinder extends to the bottom of the inner cavity of the processing tank, and the bottom end of the pressurizing cylinder is configured as a closed structure.

[0017] Furthermore, multiple exhaust pipes are provided at radial positions on the booster cylinder.

[0018] Furthermore, a support frame is fixedly connected to the bottom edge of the processing tank.

[0019] 3. Beneficial effects

[0020] Compared with existing technologies, the advantages of this utility model are:

[0021] (1) In this scheme, after adjusting the wastewater to alkalinity, the reduction motor is turned on, driving the first shaft and the first connecting frame to rotate at high speed. This allows the fan blades to draw air into the inside of the booster cylinder. Power is transmitted through the meshing of the driving bevel gear, the first driven bevel gear, and the second driven bevel gear, which also serves as a speed change mechanism. This causes the second shaft and the second connecting frame to rotate, which in turn drives the spiral blades to rotate. Air is drawn in and guided by the spiral blades to form a rotating airflow. In the acceleration section, the air is accelerated by the spiral blades and forms a high-pressure airflow, which is finally discharged through the exhaust pipe. At the same time, a check valve is used to prevent wastewater backflow, thus reducing the NH4 in the wastewater. + The ammonia nitrogen is converted into NH3 gas and stripped out, then absorbed and recovered as ammonium salt by acid solution, thus recovering and utilizing the ammonia nitrogen. By pressurizing the gas, energy consumption can be effectively reduced.

[0022] (2) In this scheme, when adding alkaline solution to wastewater through a dosing pipe, the pH value of the wastewater is detected by a pH value detection sensor to ensure accurate control of the pH value of the wastewater. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a structural schematic diagram of the present invention from another perspective;

[0025] Figure 3 This is a schematic diagram of the external structure of the booster cylinder of this utility model;

[0026] Figure 4 This is a front view schematic diagram of the booster cylinder of this utility model;

[0027] Figure 5 This is a cross-sectional schematic diagram of the pressure cylinder AA of this utility model;

[0028] Figure 6 This is an enlarged schematic diagram of part A of the present invention.

[0029] Explanation of the labels in the diagram:

[0030] 1. Treatment tank; 2. Wastewater inlet pipe; 3. Gas outlet pipe; 4. Wastewater outlet pipe; 5. Discharge valve; 6. Booster cylinder; 7. Gear motor; 8. First connecting frame; 9. Second connecting frame; 10. First shaft; 11. Fan blade; 12. Driving bevel gear; 13. First driven bevel gear; 14. Second driven bevel gear; 15. Second shaft; 16. Spiral blade; 17. Exhaust pipe; 18. Check valve; 19. pH value detection sensor; 20. Dosing pipe. Detailed Implementation

[0031] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0032] Example:

[0033] Please see Figure 1-6 A high ammonia nitrogen organic wastewater recovery device includes a treatment tank 1, a wastewater inlet pipe 2 and a gas outlet pipe 3 connected to the side wall of the treatment tank 1, a wastewater outlet pipe 4 connected to the bottom of the treatment tank 1, and a discharge valve 5 installed on the wastewater outlet pipe 4. A booster cylinder 6 is installed on the top of the treatment tank 1, and an exhaust pipe 17 is connected to the root of the side wall of the booster cylinder 6. A check valve 18 is installed on the exhaust pipe 17.

[0034] A geared motor 7 is mounted on the top of the booster cylinder 6 via a bracket;

[0035] The top opening of the booster cylinder 6 is fixedly connected to a first connecting frame 8. The middle part of the first connecting frame 8 is rotatably connected to a first shaft 10 through a bearing. The top end of the first shaft 10 is connected to the power output shaft of the geared motor 7 through a coupling. A fan blade 11 is installed on the outer wall of the first shaft 10. A drive bevel gear 12 is installed at the bottom end of the first shaft 10. A first driven bevel gear 13 that meshes with the drive bevel gear 12 is rotatably connected to the inner wall of the booster cylinder 6.

[0036] A second connecting frame 9 is fixedly connected to the lower part of the first connecting frame 8, and there are two second connecting frames 9. A second shaft 15 is rotatably connected between the two second connecting frames 9 through a bearing. A second driven bevel gear 14 that meshes with the first driven bevel gear 13 is installed at the top of the second shaft 15. A spiral blade 16 is welded to the outer wall of the second shaft 15.

[0037] An acceleration section is provided below the helical blade 16;

[0038] It should be noted that, in use, the high-ammonia nitrogen organic wastewater recovery device pumps an appropriate amount of high-ammonia nitrogen organic wastewater into the treatment tank 1 through the wastewater inlet pipe 2. After adjusting the wastewater to alkalinity, the reduction motor 7 is turned on, driving the first shaft 10 to rotate at high speed in conjunction with the first connecting frame 8. This allows the fan blades 11 to draw air into the inner side of the booster cylinder 6. Power is transmitted through the meshing of the driving bevel gear 12, the first driven bevel gear 13, and the second driven bevel gear 14, which also serves as a speed change, causing the second shaft 15 to rotate in conjunction with the second connecting frame 9. This, in turn, drives the spiral blades 16 to rotate. The air is drawn in and guided by the spiral blades, forming a rotating airflow. In the acceleration section (the acceleration section is a Venturi structure; when the gas passes through the Venturi structure, the gas velocity increases due to the reduction in the pipe cross-sectional area), the air is accelerated by the spiral blades and forms a high-pressure airflow, which is finally discharged through the exhaust pipe 17. At the same time, the check valve 18 prevents wastewater backflow, allowing the NH4 in the wastewater to be discharged. + The gas is converted into NH3 and blown out through gas treatment pipe 3. It is then absorbed and recovered into ammonium salt by acid solution, thus recovering and utilizing ammonia nitrogen. By pressurizing the gas, energy consumption can be effectively reduced.

[0039] like Figure 1 As shown, a pH value detection sensor 19 with a detection end extending into the inner cavity of the treatment tank 1 is installed on one side of the top of the booster cylinder 6. A dosing pipe 20 is also connected to the side wall of the treatment tank 1. A shut-off valve is installed on the dosing pipe 20, the wastewater inlet pipe 2, and the gas outlet pipe 3.

[0040] It should be noted that by adding alkaline solution to wastewater using the dosing pipe 20, the pH value of the wastewater is detected by the pH value detection sensor 19, ensuring that the pH value of the wastewater can be accurately controlled.

[0041] like Figure 5 As shown, the outer diameter of the spiral blade 16 is matched with the inner diameter of the booster cylinder 6;

[0042] It should be noted that this facilitates the downward transport of air.

[0043] like Figure 3 As shown, the bottom end of the booster cylinder 6 extends to the bottom of the inner cavity of the processing tank 1, and the bottom end of the booster cylinder 6 is set in a closed structure. Multiple exhaust pipes 17 are provided in the radial position of the booster cylinder 6.

[0044] It should be noted that setting multiple exhaust pipes 17 can effectively improve the efficiency of ammonia nitrogen stripping in wastewater.

[0045] like Figure 1 As shown, a support frame is fixedly connected to the bottom edge of the treatment tank 1, which provides stable support for the treatment tank 1.

[0046] In operation: A suitable amount of organic wastewater containing high ammonia nitrogen is pumped into the treatment tank 1 through the wastewater inlet pipe 2. After the wastewater is adjusted to alkalinity, the reduction motor 7 is turned on, driving the first shaft 10 to rotate at high speed in conjunction with the first connecting frame 8. This allows the fan blades 11 to draw air into the inner side of the booster cylinder 6. Power is transmitted through the meshing of the driving bevel gear 12, the first driven bevel gear 13, and the second driven bevel gear 14, simultaneously acting as a speed changer. This causes the second shaft 15 to rotate in conjunction with the second connecting frame 9, which in turn drives the spiral blades 16 to rotate. Air is drawn in and guided by the spiral blades, forming a rotating airflow. In the acceleration section (which is a Venturi structure; as the gas passes through the Venturi structure, the gas velocity increases due to the reduced cross-sectional area of ​​the pipe), the air is accelerated by the spiral blades, forming a high-pressure airflow. Finally, it is discharged through the exhaust pipe 17. Simultaneously, the check valve 18 prevents wastewater backflow, reducing the NH4+ content in the wastewater. + It is converted into NH3 gas and stripped out, and then absorbed and recovered into ammonium salt through acid solution, thus recovering and utilizing ammonia nitrogen.

[0047] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A device for recovering high ammonia nitrogen organic wastewater, comprising a treatment tank (1), a wastewater inlet pipe (2) and a gas outlet pipe (3) connected to the side wall of the treatment tank (1), a wastewater outlet pipe (4) connected to the bottom of the treatment tank (1), and a discharge valve (5) installed on the wastewater outlet pipe (4), characterized in that: A pressure booster cylinder (6) is installed on the top of the processing tank (1), and an exhaust pipe (17) is connected to the root of the side wall of the pressure booster cylinder (6). A check valve (18) is installed on the exhaust pipe (17). A geared motor (7) is mounted on the top of the booster cylinder (6) via a bracket; The top opening of the booster cylinder (6) is fixedly connected to a first connecting frame (8). The middle part of the first connecting frame (8) is rotatably connected to a first shaft (10) through a bearing. The top end of the first shaft (10) is connected to the power output shaft of the geared motor (7) through a coupling. A fan blade (11) is installed on the outer wall of the first shaft (10). A drive bevel gear (12) is installed at the bottom end of the first shaft (10). The inner wall of the booster cylinder (6) is rotatably connected to a first driven bevel gear (13) that meshes with the drive bevel gear (12). A second connecting frame (9) is fixedly connected to the bottom of the first connecting frame (8), and there are two second connecting frames (9). A second shaft (15) is rotatably connected between the two second connecting frames (9) through a bearing. A second driven bevel gear (14) that meshes with the first driven bevel gear (13) is installed at the top of the second shaft (15). A spiral blade (16) is welded to the outer wall of the second shaft (15). An acceleration section is provided below the helical blade (16).

2. The device for recovering high-ammonia-nitrogen organic wastewater according to claim 1, characterized in that: A pH value detection sensor (19) with a probe end extending into the inner cavity of the treatment tank (1) is installed on one side of the top of the pressurizing cylinder (6).

3. The device for recovering high-ammonia nitrogen organic wastewater according to claim 1, characterized in that: The side wall of the treatment tank (1) is also connected to a dosing pipe (20), and a shut-off valve is installed on the dosing pipe (20), the wastewater inlet pipe (2) and the gas outlet pipe (3).

4. The device for recovering high-ammonia nitrogen organic wastewater according to claim 1, characterized in that: The outer diameter of the spiral blade (16) is adapted to the inner diameter of the booster cylinder (6).

5. The device for recovering high-ammonia-nitrogen organic wastewater according to claim 1, characterized in that: The bottom end of the booster cylinder (6) extends to the bottom of the inner cavity of the processing tank (1), and the bottom end of the booster cylinder (6) is a closed structure.

6. The device for recovering high-ammonia nitrogen organic wastewater according to claim 1, characterized in that: Multiple exhaust pipes (17) are provided in the radial position of the booster cylinder (6).

7. The device for recovering high-ammonia nitrogen organic wastewater according to claim 1, characterized in that: A support frame is fixedly connected to the bottom edge of the processing tank (1).

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