High-efficiency negative-pressure steam stripping deamination tower device for ammonia-nitrogen wastewater

Abstract

The utility model belongs to the technical field of ammonia-nitrogen wastewater treatment equipment, and particularly relates to an efficient negative-pressure ammonia-nitrogen wastewater stripping deamination tower device which comprises a deamination tower, an exhaust port and an air inlet, the exhaust port is formed in the middle of the top end of the deamination tower, and the air inlet is formed in the outer side end face of the deamination tower. According to the utility model, by arranging the re-flow pipeline mechanism, the detection table, the transverse valve port and the longitudinal valve port, when the deamination tower mechanism performs conventional operation, the water inlet pipeline conveys waste water after pH value adjustment to the top of the deamination tower, and the waste water is in contact with the gas-liquid contact device in the deamination tower from top to bottom; under the action of gravity, the wastewater penetrates through the filler and finally falls into the water tank at the bottom end, free ammonia and air are discharged together in the process, the wastewater entering the water tank flows into the position of the detection table and is detected regularly, and if the detection structure shows that the wastewater still contains ammonia nitrogen, the transverse valve port is closed, and the longitudinal valve port is opened; and conveying the wastewater to a water inlet pipeline for re-treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonia nitrogen wastewater treatment equipment, in particular to an ammonia nitrogen wastewater high-efficiency negative pressure steam stripping deammonification tower device. Background Art

[0002] Ammonia removal tower is a device used to burn ammonia (NH3) in exhaust gas. Its main function is to remove ammonia from NOx (nitrogen oxide) exhaust gas. Ammonia removal tower is mainly composed of a reactor, a catalyst and a heater. This type of equipment is also often used to treat wastewater containing ammonia nitrogen.

[0003] The prior art has the following deficiencies: the prior art "an ammonia nitrogen stripping tower" with publication number CN108408815A "includes a tower body, a gas outlet is provided at the top of the tower body, a spraying area, a filling area and a blasting area are provided in the tower body from top to bottom, and also includes a gas-liquid separator and a reflux pipe, the gas-liquid separator is provided in the gas outlet, the reflux pipe is located between the gas-liquid separator and the spraying area, the reflux pipe is connected to the inner wall of the tower body through a bracket, a projectile device is provided at the bottom of the reflux pipe, and the filling area includes at least two filling layers";

[0004] The above structure has the advantage of good treatment effect by setting up a packing area with at least two packing layers and sequentially providing a spraying area, a packing area and a blasting area. However, the structure still follows the traditional ammonia nitrogen stripping method and treats the wastewater once. This method may have the problem of poor treatment effect when the amount of wastewater is large.

[0005] The prior art has the following problems:

[0006] The current high-efficiency negative pressure stripping deammonification tower device for ammonia nitrogen wastewater only uses a single treatment method when treating wastewater. The treatment effect is poor and there is no subsequent treatment effect. The treated wastewater is not tested, and it is impossible to know whether the treated wastewater has reached the standard for reuse. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides an efficient negative pressure stripping deammonification tower device for ammonia nitrogen wastewater, which solves the current problem of poor single wastewater treatment effect.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ammonia nitrogen wastewater high-efficiency negative pressure stripping deamination tower device, comprising a deamination tower, an exhaust port, and an air inlet, wherein the exhaust port is opened in the middle of the top of the deamination tower, the air inlet is installed on the outer end surface of the deamination tower, a water tank is also installed at the bottom of the deamination tower, a water inlet pipe is connected to the outer side of the upper end of the deamination tower, and a water pump is arranged at the outer end of the water tank;

[0009] The bottom of the water inlet pipe is fixedly connected downward with a reflow pipe mechanism, and the rear end of the water tank is also extended backward to be connected with a detection platform;

[0010] The overall structure of the reflow pipeline mechanism is formed by connecting two end pipelines in the horizontal and vertical directions, wherein the top end of the longitudinal pipeline part is connected to the bottom end of the water inlet pipeline, and the end of the horizontal pipeline part facing the water tank is connected to the water pump.

[0011] As a preferred technical solution of the utility model, the reflow pipeline mechanism also includes a longitudinal valve port, a transverse valve port and a drainage external interface. The longitudinal valve port and the transverse valve port are respectively fixedly installed on the longitudinal pipeline and transverse pipeline parts of the reflow pipeline mechanism, and the drainage external interface is connected to the end of the transverse pipeline facing the outside.

[0012] As a preferred technical solution of the utility model, the wastewater transported by the water inlet pipe is wastewater that has been treated with external pH value adjustment, and the deamination tower also includes multiple layers of fillers, a gas-liquid contact device, a fan, a water distributor and a droplet separator.

[0013] As a preferred technical solution of the utility model, the detection table is located 30 cm higher than the bottom of the water tank. Water in the tank will enter the detection table only after accumulating to a certain level. The detection table adopts manual timed extraction and detection.

[0014] As a preferred technical solution of the utility model, the deammoniation tower adopts batch-by-stage wastewater treatment and adjusts the wastewater treatment speed according to the test results of the wastewater extracted by the test station.

[0015] As a preferred technical solution of the utility model, the longitudinal valve port and the transverse valve port respectively control the wastewater for reflow and reprocessing and the wastewater discharged from the equipment after being processed.

[0016] As a preferred technical solution of the utility model, the external drainage interface needs to be connected to an external planned drainage pipeline before the reflow pipeline mechanism is put into use.

[0017] Compared with the prior art, the utility model provides a high-efficiency negative pressure stripping deamination tower device for ammonia nitrogen wastewater, which has the following beneficial effects:

[0018] The invention discloses a high-efficiency negative pressure stripping deamination tower device for ammonia nitrogen wastewater. The device is provided with a reflow pipeline mechanism, a detection platform, a transverse valve port and a longitudinal valve port. When the deamination tower mechanism performs routine operation, the water inlet pipeline transports the wastewater after pH value adjustment to the top of the deamination tower. The wastewater contacts the gas-liquid contact device inside the deamination tower from top to bottom, passes through the filler under the action of gravity and finally falls into the water tank at the bottom. In this process, free ammonia is discharged by the fan together with the air. The wastewater entering the water tank flows into the detection platform position and is sampled and tested regularly by the operator. If the detection structure shows that the wastewater still contains ammonia nitrogen, the operator closes the transverse valve port and opens the longitudinal valve port. The water pump pumps the wastewater in the water tank into the water inlet pipeline through the longitudinal pipeline in the reflow pipeline mechanism, and then the wastewater flows from the water inlet pipeline into the deamination tower again for further treatment. When the water in the water tank is tested regularly and shows that the water treatment meets the standard, the operator closes the longitudinal valve port and opens the transverse valve port, so that the treated wastewater is discharged from the inside of the device through the pumping of the water pump. By treating wastewater through the above process, the deammoniation tower structure can treat wastewater with higher quality compared to the traditional "one-pass" wastewater treatment method, and monitor the treatment effect regularly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the position structure of the rear end detection platform of the utility model;

[0021] Figure 3 This is a detailed structural diagram of the reflow pipeline of the utility model;

[0022] Figure 4 It is a schematic diagram of the side end structure of the compound flow pipeline of the utility model.

[0023] In the figure: 1. Deammonification tower; 2. Exhaust port; 3. Air inlet; 4. Water tank; 5. Water inlet pipe; 6. Reflow pipe mechanism; 601 longitudinal valve port; 602, transverse valve port; 603, drainage external interface; 7. Water pump; 8. Test bench. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4In this embodiment: a highly efficient negative pressure stripping deamination tower device for ammonia nitrogen wastewater comprises a deamination tower 1, an exhaust port 2, and an air inlet 3. The exhaust port 2 is opened at the middle of the top of the deamination tower 1. The exhaust port 2 discharges air carrying free ammonia. The air inlet 3 is installed on the outer end surface of the deamination tower 1. The air inlet 3 is used to transport air inside the deamination tower 1. A water tank 4 is also installed at the bottom of the deamination tower 1. The water tank 4 is used to hold wastewater treated from top to bottom. The outer side of the upper end of the deamination tower 1 is connected to a water inlet pipe 5. The water inlet pipe 5 transports wastewater into the deamination tower 1. A water pump 7 is provided at the outer end of the water tank 4. The water pump 7 pressurizes the wastewater for pumping.

[0026] The bottom of the water inlet pipe 5 is fixedly connected downward with a reflow pipe mechanism 6, which transports wastewater to the water inlet pipe 5. The rear end of the water tank 4 is also extended backward to be connected with a detection platform 8, which provides wastewater samples in real time;

[0027] The overall structure of the reflow pipeline mechanism 6 is formed by connecting two horizontal and vertical pipes at both ends, wherein the top of the longitudinal pipe part is connected to the bottom of the water inlet pipe 5, and the end of the horizontal pipe part toward the water tank 4 is connected to the water pump 7.

[0028] In this embodiment, the reflow pipeline mechanism 6 also includes a longitudinal valve port 601, a transverse valve port 602 and a drainage external interface 603. The longitudinal valve port 601 and the transverse valve port 602 are respectively fixedly installed on the longitudinal pipeline and the transverse pipeline part of the reflow pipeline mechanism 6, and the drainage external interface 603 is connected to the end of the transverse pipeline facing the outside; the wastewater transported by the water inlet pipeline 5 is all wastewater that has been treated by external pH adjustment. The interior of the deammonification tower 1 also includes multiple layers of fillers, gas-liquid contact devices, fans, water distributors and droplet separators. Only wastewater that has been adjusted in pH value can be effectively stripped of ammonia; the detection table 8 is 30 cm higher than the bottom of the water tank 4, and the water tank 4 will enter after accumulating to a certain extent. The wastewater enters the detection table 8, which adopts manual timed extraction and detection. By setting the detection table 8 higher than the bottom of the water tank 4, wastewater overflow can be avoided; the deammonification tower 1 adopts batch and staged wastewater treatment, and adjusts the wastewater treatment speed according to the detection results of the wastewater extracted by the detection table 8. Batch wastewater treatment can effectively ensure the high-quality treatment of wastewater; the longitudinal valve port 601 and the transverse valve port 602 respectively control the reflow reprocessed wastewater and the wastewater discharged from the equipment after treatment. The longitudinal valve port 601 and the transverse valve port 602 are used to control the direction of the wastewater effectively; before the reflow pipeline mechanism 6 is put into use, the drainage external interface 603 needs to be connected to the external planned drainage pipeline.

[0029] The working principle and use process of the utility model are as follows: when the deamination tower 1 is in routine operation, the water inlet pipe 5 transports the wastewater after pH value adjustment to the top of the deamination tower 1, and the wastewater contacts the gas-liquid contact device inside the deamination tower 1 from top to bottom, passes through the filler under the action of gravity and finally falls into the water tank 4 at the bottom. In this process, the free ammonia is discharged by the fan together with the air, and the wastewater entering the water tank 4 flows into the position of the detection table 8 and is sampled and tested by the operator at regular intervals. If the detection structure shows that the wastewater still contains ammonia nitrogen, the operator closes the horizontal valve port 602 and opens the longitudinal valve port 601, and the water pump 7 pumps the wastewater in the water tank 4 into the water inlet pipe 5 through the longitudinal pipe in the reflow pipe mechanism 6, and then the wastewater flows from the water inlet pipe 5 into the deamination tower 1 again for re-treatment. When the water in the water tank 4 is regularly tested and shows that the water treatment meets the standard, the operator closes the longitudinal valve port 601 and opens the horizontal valve port 602, so that the treated wastewater is discharged from the equipment by the pumping of the water pump 7.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A highly efficient negative pressure stripping deamination tower device for ammonia nitrogen wastewater, comprising a deamination tower (1), an exhaust port (2), and an air inlet (3), wherein the exhaust port (2) is opened at the middle of the top of the deamination tower (1), the air inlet (3) is installed on the outer end surface of the deamination tower (1), a water tank (4) is installed at the bottom of the deamination tower (1), a water inlet pipe (5) is connected to the outer side of the upper end of the deamination tower (1), and a water pump (7) is arranged at the outer end of the water tank (4), characterized in that: The bottom of the water inlet pipe (5) is fixedly connected downwardly to a reflow pipe mechanism (6), and the rear end of the water tank (4) is also extended backwards to be connected to a detection platform (8); The overall structure of the reflow pipe mechanism (6) is formed by connecting two end pipes in a horizontal and vertical direction, wherein the top end of the longitudinal pipe portion is connected to the bottom end of the water inlet pipe (5), and the end of the transverse pipe portion facing the water tank (4) is connected to the water pump (7).

2. The high-efficiency negative pressure stripping deamination tower device for ammonia nitrogen wastewater according to claim 1 is characterized in that: The reflow pipeline mechanism (6) further comprises a longitudinal valve port (601), a transverse valve port (602) and a drainage external interface (603); the longitudinal valve port (601) and the transverse valve port (602) are respectively fixedly mounted on the longitudinal pipeline and transverse pipeline portions of the reflow pipeline mechanism (6); and the drainage external interface (603) is connected to the end of the transverse pipeline facing outwards.

3. The high-efficiency negative pressure stripping deamination tower device for ammonia nitrogen wastewater according to claim 1 is characterized in that: The wastewater transported by the water inlet pipe (5) is wastewater that has been treated by external pH adjustment. The deammoniation tower (1) also contains multiple layers of fillers, a gas-liquid contact device, a fan, a water distributor, and a droplet separator.

4. The high-efficiency negative pressure stripping deamination tower device for ammonia nitrogen wastewater according to claim 1 is characterized in that: The detection table (8) is located 30 cm higher than the bottom of the water tank (4). Water in the water tank (4) will enter the detection table (8) only after accumulating to a certain level. The detection table (8) adopts manual timed extraction and detection.

5. The high-efficiency negative pressure stripping deamination tower device for ammonia nitrogen wastewater according to claim 1 is characterized in that: The deammoniation tower (1) adopts batch-by-stage wastewater treatment, and adjusts the wastewater treatment speed according to the test results of the wastewater extracted by the test bench (8).

6. The high-efficiency negative pressure stripping deamination tower device for ammonia nitrogen wastewater according to claim 2, characterized in that: The longitudinal valve port (601) and the transverse valve port (602) respectively control the reflow of wastewater for reprocessing and the wastewater discharged from the equipment after processing.

7. The high-efficiency negative pressure stripping deamination tower device for ammonia nitrogen wastewater according to claim 1 is characterized in that: Before the reflow pipeline mechanism (6) is put into use, the external drainage interface (603) needs to be connected to an external planned drainage pipeline.

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