Environment-friendly sewage treatment dosing device

Abstract

The utility model discloses an environment-friendly sewage treatment dosing device, which relates to the technical field of sewage treatment, and comprises a medicine storage tank, a medicine discharge port and a reflux inlet are arranged on the medicine storage tank, the medicine discharge port of the medicine storage tank is connected with a metering pump through a pipeline, the output end of the metering pump is connected with a coagulating basin dosing pipe through a pipeline, and the output end of the coagulating basin dosing pipe is connected with the reflux inlet. The second pipeline is connected with the coagulating basin dosing pipe through a three-way pipe, a fine adjustment gate valve and a flow meter are arranged on the coagulating basin dosing pipe, the end, away from the metering pump, of the pipeline is connected with a backflow pipeline, and the end, away from the pipeline, of the backflow pipeline is connected with a backflow opening. The backflow pipeline is arranged at the rear end of the dosing pipe of the coagulating basin, redundant medicament can flow back into the medicament storage tank, so that the pressure of the pipeline is released, the phenomenon of pipe explosion caused by overlarge pressure at the joint of the pipeline is avoided, the arranged fine-tuning gate valve is more beneficial to accurate flow regulation and control, and the use effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an environmentally friendly sewage treatment dosing device. Background Art

[0002] The coagulant added to the magnetic coagulation system is a liquid dephosphorization agent, polyaluminum ferric sulfate. In the application for Chinese Patent Publication No. CN116102090A, an intelligent control system for dosing of sewage dephosphorization treatment is proposed. After studying the patent and the prior art, it is found that polyaluminum ferric sulfate is stored in ton barrels in the dosing room and transported to the two coagulation tanks of the magnetic coagulation system for dosing through a diaphragm pressure metering pump. The amount of dosing is mainly regulated by adjusting the frequency converter, the adjustment button of the metering pump and the valve opening degree of the end pipes of the two coagulation tanks. In daily regulation, it is found that the amount of drug output fluctuates greatly and is unstable, and it will cause excessive pressure in the dosing room pipeline, and the pipe interface is prone to bursting. When the inspectors find it, it has caused unnecessary waste. Therefore, an environmentally friendly sewage treatment dosing device is proposed. Utility Model Content

[0003] Technical issues solved

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide an environmentally friendly sewage treatment dosing device.

[0005] Technical Solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an environmentally friendly sewage treatment dosing device, comprising a drug storage tank, the drug storage tank is provided with a drug discharge port and a reflux port, the drug discharge port of the drug storage tank is connected to a metering pump through a pipeline, the output end of the metering pump is connected to a coagulation tank dosing pipe through pipeline 2, the pipeline 2 and the coagulation tank dosing pipe are connected through a three-way pipe, the coagulation tank dosing pipe is provided with a fine-tuning gate valve and a flow meter, the end of the pipeline 2 away from the metering pump is connected to a reflux pipe, the end of the reflux pipe away from the pipeline 2 is connected to the reflux port, the rear end of the coagulation tank dosing pipe is provided with a reflux pipe, which can return excess reagents to the drug storage tank to release the pipeline pressure, and the pipeline connection will not burst due to excessive pressure, and the fine-tuning gate valve is more conducive to precise flow control, and the use effect is better.

[0007] Preferably, cleaning nozzles are provided on both the second pipeline and the reflux pipeline. The second pipeline and the reflux pipeline are both connected to the cleaning nozzles through a second three-way pipe. A valve is provided at one end of the cleaning nozzle, and a cleaning pipeline is connected to the cleaning nozzle through the valve. Cleaning nozzles are provided on both the second pipeline and the reflux pipeline, and the cleaning nozzle is connected to a cleaning pipeline through a valve. Considering that the phosphorus removal agent polyaluminum ferric sulfate will crystallize and block the pipeline after a long time, the entire pipeline system can be cleaned by high-pressure flushing with reclaimed water or tap water through a high-pressure water pump, making the pipeline of the chemical dosing device easy to clean and extending its service life.

[0008] Preferably, the cleaning pipeline is connected to a high-pressure water pump, and the input end of the high-pressure water pump is connected to a water source storage tank.

[0009] Preferably, the water in the water source storage tank is reclaimed water or tap water.

[0010] Preferably, there is at least one chemical dosing pipe for the coagulation tank.

[0011] Preferably, the output end of the chemical dosing pipe for the coagulation tank is placed above the coagulation tank.

[0012] Beneficial effects:

[0013] Compared with the prior art, the environmental protection sewage treatment chemical dosing device has the following beneficial effects:

[0014] First, a reflux pipeline is provided at the rear end of the chemical dosing pipe of the present invention, and the excess chemical agent can be refluxed to the chemical storage tank, so that the pipeline pressure is released, and the pipeline connection will not burst due to excessive pressure. Moreover, the set fine-tuning gate valve is more conducive to accurate flow regulation, and the use effect is better.

[0015] Second, cleaning nozzles are provided on both the second pipeline and the reflux pipeline of the present invention, and the cleaning nozzle is connected to a cleaning pipeline through a valve. Considering that the phosphorus removal agent polyaluminum ferric sulfate will crystallize and block the pipeline after a long time, the entire pipeline system can be cleaned by high-pressure flushing with reclaimed water or tap water through a high-pressure water pump, making the pipeline of the chemical dosing device easy to clean and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is of the present invention Figure 1 The enlarged schematic structural diagram of part A in.

[0018] In the figure:

[0019] 1. Medicine storage tank; 2. Metering pump; 3. Chemical dosing pipe for coagulation tank; 4. Pipeline; 5. Pipeline II; 6. Three-way pipe; 7. Fine-tuning gate valve; 8. Flowmeter; 9. Return pipeline; 10. Cleaning pipe orifice; 11. Second three-way pipe; 12. Valve; 13. Cleaning pipeline; 14. High-pressure water pump. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 to 2 As shown, the present invention provides a technical solution: an environmental protection sewage treatment chemical dosing device, including a medicine storage tank 1. A medicine discharge port and a return port are provided on the medicine storage tank 1. The medicine discharge port of the medicine storage tank 1 is connected to a metering pump 2 through a pipeline 4. The output end of the metering pump 2 is connected to a chemical dosing pipe 3 for a coagulation tank through a pipeline II 5. The pipeline II 5 and the chemical dosing pipe 3 for the coagulation tank are connected through a three-way pipe 6. A fine-tuning gate valve 7 and a flowmeter 8 are provided on the chemical dosing pipe 3 for the coagulation tank. One end of the pipeline II 5 far from the metering pump 2 is connected to a return pipeline 9. One end of the return pipeline 9 far from the pipeline II 5 is connected to the return port. A return pipeline is provided at the rear end of the chemical dosing pipe 3 for the coagulation tank, and the excess medicine can be returned to the medicine storage tank 1, so that the pipeline pressure is released, and the phenomenon of pipeline bursting due to excessive pressure will not occur at the pipeline connection. Moreover, the provided fine-tuning gate valve 7 is more conducive to accurate flow regulation, and the use effect is better.

[0022] Please refer specifically to Figure 2 , cleaning pipe orifices 10 are provided on both the pipeline II 5 and the return pipeline 9. The pipeline II 5 and the return pipeline 9 are both connected to the cleaning pipe orifice 10 through a second three-way pipe 11. A valve 12 is provided at one end of the cleaning pipe orifice 10. The cleaning pipe orifice 10 is connected to a cleaning pipeline 13 through the valve 12. The cleaning pipeline 13 is connected to a high-pressure water pump 14. The input end of the high-pressure water pump 14 is connected to a water source storage tank. The water in the water source storage tank is reclaimed water or tap water. Cleaning pipe orifices 10 are provided on both the pipeline II 5 and the return pipeline 9, and the cleaning pipe orifice 10 is connected to a cleaning pipeline 13 through the valve 12. Considering that the phosphorus removal agent polyaluminum ferric sulfate will crystallize and block the pipeline after a long time, the entire pipeline system can be flushed with high-pressure reclaimed water or tap water through the high-pressure water pump 14, so that the pipeline of the chemical dosing device is convenient to clean and the service life is extended.

[0023] There is at least one chemical dosing pipe 3 in this application, and there can also be multiple ones. Its quantity is set according to the number of coagulation tanks, and each coagulation tank is at least matched with one chemical dosing pipe 3 for the coagulation tank. Multiple chemical dosing pipes 3 for the coagulation tank are arranged in parallel, and the output end of the chemical dosing pipe 3 for the coagulation tank is placed above the coagulation tank.

[0024] Working principle: A reflux pipeline is arranged at the rear end of the chemical dosing pipe 3 for the coagulation tank, which can return the excess chemical agent to the storage tank 1, so as to release the pipeline pressure and prevent the pipeline connection from bursting due to excessive pressure. The set fine adjustment gate valve 7 is more conducive to accurate flow regulation, and the use effect is better. Cleaning nozzles 10 are arranged on both the pipeline two 5 and the reflux pipeline 9, and the cleaning nozzles 10 are connected with a cleaning pipeline 13 through a valve 12. Considering that the phosphorus removal agent polyaluminum ferric sulfate will crystallize and block the pipeline after a long time, the entire pipeline system can be flushed with medium water or tap water under high pressure through a high-pressure water pump 14, so that the pipeline of this chemical dosing device is convenient to clean and the service life is prolonged.

[0025] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly sewage treatment chemical dosing device, comprising a chemical storage tank (1), characterized in that: The medicine storage tank (1) is provided with a medicine discharge port and a reflux port. The medicine discharge port of the medicine storage tank (1) is connected to a metering pump (2) through a pipeline (4). The output end of the metering pump (2) is connected to a medicine adding pipe (3) for the coagulation tank through a second pipeline (5). The second pipeline (5) and the medicine adding pipe (3) for the coagulation tank are connected through a tee pipe (6). The medicine adding pipe (3) for the coagulation tank is provided with a fine adjustment gate valve (7) and a flowmeter (8). One end of the second pipeline (5) away from the metering pump (2) is connected to a reflux pipeline (9). One end of the reflux pipeline (9) away from the second pipeline (5) is connected to the reflux port.

2. The environmentally friendly sewage treatment chemical dosing device according to claim 1, wherein: Both the second pipeline (5) and the reflux pipeline (9) are provided with cleaning pipe orifices (10). The second pipeline (5) and the reflux pipeline (9) are both connected to the cleaning pipe orifices (10) through a second tee pipe (11). One end of the cleaning pipe orifice (10) is provided with a valve (12). The cleaning pipe orifice (10) is connected to a cleaning pipeline (13) through the valve (12).

3. An environmentally friendly sewage treatment chemical dosing device according to claim 2, characterized in that: The cleaning pipeline (13) is connected to a high-pressure water pump (14). The input end of the high-pressure water pump (14) is connected to a water source storage tank.

4. An environmentally friendly sewage treatment chemical dosing device according to claim 3, characterized in that: The water in the water source storage tank is reclaimed water or tap water.

5. An environmentally friendly sewage treatment chemical dosing device according to claim 1, characterized in that: The medicine adding pipe (3) for the coagulation tank is at least one.

6. The environmentally friendly sewage treatment chemical dosing device according to claim 1, wherein: The output end of the medicine adding pipe (3) for the coagulation tank is placed above the coagulation tank.

Images