Nitrogen and phosphorus sewage resourceful treatment device

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a nitrogen and phosphorus sewage resourceful treatment device which comprises a chemical tank, a stirring mechanism is arranged above the chemical tank, and the inner side wall of the chemical tank is fixedly connected with a heating mechanism. According to the nitrogen and phosphorus sewage resourceful treatment device, through the arrangement of the chemical tank, the stirring mechanism and the heating mechanism, when sewage is subjected to chemical agent treatment, a servo motor is started, the servo motor sequentially drives a rotating shaft and stirring blades to rotate, sewage and agents in the chemical tank are mixed and stirred, and a temperature sensor measures the temperature of the sewage in the tank; if the temperature is lower than a set temperature value, the controller sends a heating signal, and the heating wire works to adjust the temperature of the sewage in the tank to be close to the set value, so that heating and stirring act together, the chemical reaction process is accelerated, the treatment time is shortened, and the overall treatment efficiency is improved; sediment accumulation and low treatment efficiency are avoided.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a nitrogen and phosphorus wastewater resource utilization treatment device. Background Technology

[0002] Rural domestic sewage is a significant component of non-point source pollution. Its distribution is relatively dispersed, and its quality and quantity vary considerably with region and time. Rural sewage treatment infrastructure is also inadequate. Integrated rural sewage treatment equipment, with its small footprint and low infrastructure costs, is gradually becoming the mainstream approach for rural sewage treatment. However, most integrated systems, due to the large fluctuations in the quality and quantity of domestic sewage, and the fact that their treatment processes are not as sophisticated as traditional processes, fail to achieve satisfactory removal of nitrogen and phosphorus from rural domestic sewage.

[0003] On the other hand, the nature of domestic sewage in most villages and towns is not much different. The water basically does not contain heavy metals and toxic and harmful substances, which provides a strong prerequisite for the resource utilization of domestic sewage in villages and towns. In particular, nitrogen and phosphorus in sewage can cause eutrophication when discharged into water bodies, but they are indispensable nutrients for crops. If nitrogen and phosphorus in sewage can be utilized to achieve "taking from the people and using for the people", it will be an important transformation of the existing sewage treatment model in villages and towns.

[0004] A nitrogen and phosphorus wastewater resource utilization treatment device disclosed in CN220328158U includes a base plate. A box is fixedly connected to the top left side of the base plate. A first frame is provided at the upper end of the inner cavity of the box. A filter screen is provided on the inner surface of the first frame. Limit plates are provided at the middle of the left and right sides of the top of the first frame. A water pump is fixedly installed at the lower right end of the box, and the input end of the water pump is connected to the lower right end of the box. In this invention, wastewater is poured into the inner cavity of the box. The wastewater first flows into the inner cavity of the box after being filtered by the filter screen. When the filter screen becomes saturated due to excessive filtration, its filtration efficiency decreases. The first frame is lifted upwards by the limit plates, and the filter screen is cleaned or replaced. The water pump is started by an external controller, achieving a high degree of automation. This solves the problem that existing treatment devices lack a high degree of automation, thus failing to meet the needs of users.

[0005] While the aforementioned patent achieves a high degree of automation by lifting the first frame upwards through a limiting plate, allowing users to clean or replace the filter, and activating the water pump via an external controller, thus solving the problem that existing treatment devices lack a high degree of automation and cannot meet user needs, the device cannot guarantee that magnesium salts can be stably dispersed and discharged into the wastewater, resulting in low stability. Furthermore, the treated wastewater is discharged directly without nitrogen and phosphorus concentration detection, which can easily lead to secondary pollution. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] The purpose of this invention is to provide a nitrogen and phosphorus wastewater resource utilization treatment device, which solves the problems mentioned in the background art, such as the inability of the device to guarantee that magnesium salts can be stably dispersed and discharged into the wastewater, resulting in low stability, and the direct discharge of treated wastewater without nitrogen and phosphorus concentration detection, which easily leads to secondary pollution.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen and phosphorus wastewater resource treatment device, comprising a chemical tank, a stirring mechanism above the chemical tank, a heating mechanism fixedly connected to the inner wall of the chemical tank, a detection tank penetrating one side of the chemical tank, a detection mechanism inside the detection tank, the stirring mechanism including a tank cover above the chemical tank, a servo motor threadedly connected to the top of the tank cover, a rotating shaft splined to the output end of the servo motor, multiple sets of stirring blades on the surface of the rotating shaft, the heating mechanism including a heating wire fixedly connected to the inner wall of the chemical tank, a temperature sensor electrically connected to one side of the heating wire via a power line, a controller electrically connected to one side of the temperature sensor via a power line, the detection mechanism including a nitrogen and phosphorus concentration sensor inside the detection tank, a pump inlet pipe penetrating one side of the detection tank, a solenoid valve penetrating the surface of the pump inlet pipe, a return water pump penetrating one side of the pump inlet pipe, and a return water pipe penetrating one side of the return water pump.

[0010] As a further embodiment of this utility model, a half gear is fixedly connected to the surface of the rotating shaft, a spur rack is meshed with one side of the half gear, a connecting frame is slidably connected to the surface of the spur rack, a sliding groove is provided on one side of the connecting frame, a sleeve is fixedly connected to one side of the spur rack, a spring is fixedly connected inside the sleeve, the spring is fixedly connected to one side of the connecting frame, and a cavity is provided on one side of the sliding groove. The spring serves to drive the spur rack to move quickly and return to its original shape.

[0011] As a further embodiment of this utility model, a top rod frame is fixedly connected above the straight rack, and a medicine tank is fixedly connected above the connecting frame. A medicine inlet pipe is connected through the surface of the medicine tank and is connected through the surface of the pool cover. The top rod frame serves to stably dispense the medicine in the medicine tank.

[0012] As a further embodiment of this utility model, a biological tank is fixedly connected to one side of the chemical tank, an aeration device is provided at the bottom of the biological tank, and spherical porous packing is provided inside the biological tank. The aeration device increases the oxygen in the tank.

[0013] As a further embodiment of this utility model, a hydrolysis tank is connected through one side of the biological pool, the interior of the hydrolysis tank is filled with biomimetic plant filler, and a sludge discharge pipe is provided at the bottom of the hydrolysis tank, which facilitates cleaning.

[0014] As a further embodiment of this utility model, a filter tank is connected through one side of the hydrolysis tank, an inclined filter screen is provided inside the filter tank, a handle is provided on the surface of the inclined filter screen, and a water inlet pipe is connected through one side of the filter tank. The handle facilitates disassembly and cleaning.

[0015] As a further embodiment of this utility model, the temperature sensor is fixedly connected to the inner wall of the chemical tank, the controller is fixedly connected to one side of the chemical tank, the nitrogen and phosphorus concentration sensor is electrically connected to one side of the controller via a power cord, and an outlet pipe is connected through one side of the detection tank. The nitrogen and phosphorus concentration sensor is used to detect the nitrogen and phosphorus concentration in the wastewater.

[0016] (III) Beneficial Effects

[0017] This utility model provides a nitrogen and phosphorus wastewater resource utilization treatment device, which has the following beneficial effects:

[0018] 1. This nitrogen and phosphorus wastewater resource utilization treatment device, through the setup of a chemical tank, a stirring mechanism, and a heating mechanism, activates a servo motor during chemical treatment of wastewater. The servo motor sequentially drives the rotating shaft and stirring blades to rotate, mixing the wastewater and chemicals in the chemical tank. A temperature sensor measures the temperature of the wastewater in the tank and converts it into an electrical signal, which is then sent to the controller. If the temperature is lower than the set value, the controller sends a heating signal, and the heating wire operates to adjust the temperature of the wastewater in the tank to near the set value. Thus, the combined effect of heating and stirring accelerates the chemical reaction process, shortens the treatment time, improves the overall treatment efficiency, and avoids sedimentation and low treatment efficiency.

[0019] 2. This nitrogen and phosphorus wastewater resource recovery treatment device, through the setting of a detection tank and detection mechanism, allows nitrogen and phosphorus concentration sensors to detect the nitrogen and phosphorus concentrations in the wastewater when the treated wastewater flows through the detection tank. The sensors transmit electrical signals to the controller, which determines whether the nitrogen and phosphorus concentrations exceed the set values. If the concentrations exceed the set values, the controller sends a signal to open the solenoid valve and start the return water pump to discharge the wastewater in the detection tank to the hydrolysis tank for a second wastewater treatment. If the detected values ​​are lower than the set values, the wastewater is directly discharged to the next disinfection tank for further treatment. Thus, the wastewater exceeding the standards is returned to the hydrolysis tank through the return water pipe for secondary treatment, ensuring that the effluent meets the standards, improving the resource recovery rate, and avoiding secondary pollution. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the stirring mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the heating mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the testing mechanism of this utility model.

[0025] In the diagram: 1. Chemical tank; 2. Stirring mechanism; 201. Tank cover; 202. Servo motor; 203. Rotating shaft; 204. Stirring blade; 3. Heating mechanism; 301. Heating wire; 302. Temperature sensor; 303. Controller; 4. Detection tank; 5. Detection mechanism; 501. Nitrogen and phosphorus concentration sensor; 502. Pump inlet pipe; 503. Solenoid valve; 504. Return water pump; 505. Return water pipe; 6. Half gear; 7. Spur rack; 8. Connecting frame; 9. Sleeve; 10. Spring; 11. Cavity; 12. Top rod frame; 13. Chemical tank; 14. Chemical inlet pipe; 15. Biological tank; 16. Aeration device; 17. Spherical porous packing; 18. Hydrolysis tank; 19. Bionic plant packing; 20. Sludge discharge pipe; 21. Filter tank; 22. Inclined filter screen; 23. Handle; 24. Inlet pipe; 25. Outlet pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the 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 scope of protection of the present utility model.

[0027] Please see Figures 1 to 5 This utility model provides a technical solution: a nitrogen and phosphorus wastewater resource treatment device, including a chemical tank 1, a stirring mechanism 2 above the chemical tank 1, a heating mechanism 3 fixedly connected to the inner wall of the chemical tank 1, a detection tank 4 penetrating one side of the chemical tank 1, a detection mechanism 5 inside the detection tank 4, the stirring mechanism 2 including a tank cover 201 above the chemical tank 1, a servo motor 202 threadedly connected to the top of the tank cover 201, a rotating shaft 203 splinedly connected to the output end of the servo motor 202, and multiple sets of stirring blades 204 arranged on the surface of the rotating shaft 203. The heating mechanism 3 includes a heating wire 301 fixedly connected to the inner wall of the chemical tank 1. A temperature sensor 302 is electrically connected to one side of the heating wire 301 via a power cord. A controller 303 is electrically connected to one side of the temperature sensor 302 via a power cord. The detection mechanism 5 includes a nitrogen and phosphorus concentration sensor 501 installed inside the detection tank 4. An inlet pump pipe 502 is connected through one side of the detection tank 4. A solenoid valve 503 is connected through the surface of the inlet pump pipe 502. A return water pump 504 is connected through one side of the inlet pump pipe 502. A return water pipe 505 is connected through one side of the return water pump 504.

[0028] A half gear 6 is fixedly connected to the surface of the rotating shaft 203. A rack 7 is meshed with one side of the half gear 6. A connecting frame 8 is slidably connected to the surface of the rack 7. A groove is provided on one side of the connecting frame 8. A sleeve 9 is fixedly connected to one side of the rack 7. A spring 10 is fixedly connected inside the sleeve 9. The spring 10 is fixedly connected to one side of the connecting frame 8. A cavity 11 is provided on one side of the groove. The spring 10 serves to drive the rack 7 to move quickly and return to its original position.

[0029] A top rod frame 12 is fixedly connected above the rack 7, and a medicine tank 13 is fixedly connected above the connecting frame 8. A medicine inlet pipe 14 is connected through the surface of the medicine tank 13 and is connected through the surface of the pool cover 201. The top rod frame 12 is used to stably dispense the medicine in the medicine tank 13.

[0030] A biological tank 15 is fixedly connected to one side of the chemical tank 1. An aeration device 16 is installed at the bottom of the biological tank 15. Spherical porous packing material 17 is installed inside the biological tank 15. The aeration device 16 increases the oxygen in the tank.

[0031] A hydrolysis tank 18 is connected through one side of the biological pool 15. The interior of the hydrolysis tank 18 is equipped with biomimetic plant filler 19. A sludge discharge pipe 20 is installed at the bottom of the hydrolysis tank 18, which facilitates cleaning.

[0032] A filter tank 21 is connected through one side of the hydrolysis tank 18. An inclined filter screen 22 is installed inside the filter tank 21. A handle 23 is installed on the surface of the inclined filter screen 22. A water inlet pipe 24 is connected through one side of the filter tank 21. The handle 23 facilitates disassembly and cleaning.

[0033] Temperature sensor 302 is fixedly connected to the inner wall of chemical tank 1, controller 303 is fixedly connected to one side of chemical tank 1, nitrogen and phosphorus concentration sensor 501 is electrically connected to one side of controller 303 via power cord, and effluent pipe 25 is connected through one side of detection tank 4. The nitrogen and phosphorus concentration sensor 501 is used to detect the nitrogen and phosphorus concentration in wastewater.

[0034] The temperature sensor 302 is model number WG22701; the nitrogen and phosphorus concentration sensor 501 is model number 3150TPN. The above parameters and models can be selected according to the actual situation.

[0035] In this invention, the working steps of the device are as follows:

[0036] First step: When treating wastewater with chemical agents, start the servo motor 202. The servo motor 202 drives the rotating shaft 203 and the stirring blade 204 to rotate in sequence, mixing the wastewater and agents in the chemical tank 1. The temperature sensor 302 measures the temperature of the wastewater in the tank and converts it into an electrical signal and sends it to the controller 303. If the temperature is lower than the set value, the controller 303 sends a heating signal, and the heating wire 301 works to adjust the temperature of the wastewater in the tank to near the set value.

[0037] The second step: When the treated wastewater flows through the detection tank 4, the nitrogen and phosphorus concentration sensor 501 detects the nitrogen and phosphorus concentration in the wastewater and sends an electrical signal to the controller 303. The controller 303 determines whether the nitrogen and phosphorus concentration exceeds the set value. If it exceeds the set value, the controller 303 sends a signal to open the solenoid valve 503 and start the return water pump 504 to discharge the wastewater in the detection tank 4 into the hydrolysis tank 18 for another wastewater treatment. If the detected value is lower than the set value, the wastewater is directly discharged into the next disinfection tank for further treatment.

[0038] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0039] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for the resourceful treatment of nitrogen and phosphorus sewage, comprising a chemical tank (1), characterized in that: The upper side of the chemical pool (1) is provided with a stirring mechanism (2), the inner side wall of the chemical pool (1) is fixedly connected with a heating mechanism (3), one side of the chemical pool (1) is connected with a detection pool (4) in a penetrating mode, the inside of the detection pool (4) is provided with a detection mechanism (5), The stirring mechanism (2) comprises a pool cover (201) arranged above the chemical pool (1), a servo motor (202) is threadedly connected to the upper side of the pool cover (201), a rotating shaft (203) is spline-connected to the output end of the servo motor (202), and a plurality of stirring blades (204) are arranged on the surface of the rotating shaft (203), The heating mechanism (3) comprises a heating wire (301) fixedly connected to the inner side wall of the chemical pool (1), a temperature sensor (302) is electrically connected to one side of the heating wire (301) through a power line, and a controller (303) is electrically connected to one side of the temperature sensor (302) through a power line, The detection mechanism (5) comprises a nitrogen and phosphorus concentration sensor (501) arranged in the inside of the detection pool (4), a pump inlet pipe (502) is connected to one side of the detection pool (4) in a penetrating mode, an electromagnetic valve (503) is connected to the surface of the pump inlet pipe (502) in a penetrating mode, a water return pump (504) is connected to one side of the pump inlet pipe (502) in a penetrating mode, and a water return pipe (505) is connected to one side of the water return pump (504) in a penetrating mode.

2. The device for treating wastewater containing nitrogen and phosphorus according to claim 1, characterized in that: The surface of the rotating shaft (203) is fixedly connected with a half gear (6), one side of the half gear (6) is engagedly connected with a straight rack (7), the surface of the straight rack (7) is slidably connected with a connecting frame (8), a sliding groove is formed in one side of the connecting frame (8), one side of the straight rack (7) is fixedly connected with a sleeve (9), the inside of the sleeve (9) is fixedly connected with a spring (10), the spring (10) is fixedly connected to one side of the connecting frame (8), and one side of the sliding groove is provided with a cavity (11).

3. The device for recycling nitrogen and phosphorus in sewage according to claim 2, characterized in that: The upper side of the straight rack (7) is fixedly connected with a top rod frame (12), the upper side of the connecting frame (8) is fixedly connected with a medicament box (13), the surface of the medicament box (13) is connected with a medicament inlet pipe (14) in a penetrating mode, and the medicament inlet pipe (14) is connected to the surface of the pool cover (201) in a penetrating mode.

4. The device for recycling nitrogen and phosphorus in sewage according to claim 1, characterized in that: One side of the chemical pool (1) is fixedly connected with a biological pool (15), the bottom of the biological pool (15) is provided with an aeration device (16), and the inside of the biological pool (15) is provided with a spherical porous filler (17).

5. The device for recycling nitrogen and phosphorus from sewage according to claim 4, characterized in that: One side of the biological pool (15) is connected with a hydrolysis pool (18) in a penetrating mode, the inside of the hydrolysis pool (18) is provided with a bionic plant filler (19), and the bottom of the hydrolysis pool (18) is provided with a sludge discharge pipe (20).

6. The device for recycling nitrogen and phosphorus from sewage according to claim 5, characterized in that: One side of the hydrolysis pool (18) is connected with a filter pool (21) in a penetrating mode, the inside of the filter pool (21) is provided with an inclined filter screen (22), the surface of the inclined filter screen (22) is provided with a handle (23), and one side of the filter pool (21) is connected with a water inlet pipe (24) in a penetrating mode.

7. The device for recycling nitrogen and phosphorus from sewage according to claim 1, characterized in that: The temperature sensor (302) is fixedly connected to the inner side wall of the chemical pool (1), the controller (303) is fixedly connected to one side of the chemical pool (1), the nitrogen and phosphorus concentration sensor (501) is electrically connected to one side of the controller (303) through a power line, and one side of the detection pool (4) is connected with the water outlet pipe (25) in penetration.

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