Automatic dosing device for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an automatic dosing device for sewage treatment, which comprises a dosing box, a first pipeline, a temporary storage cavity, a second pipeline, a reaction tank, a third pipeline and a vacuum pump, a water inlet pipeline is arranged at one end of the top of the dosing box, a first valve is arranged in the water inlet pipeline, and a dosing port is formed in the other end of the top of the dosing box; the inlet end of the first pipeline is connected with the dispensing box, and the outlet end of the first pipeline is connected with the temporary storage cavity; the inlet end of the second pipeline is connected with the temporary storage cavity, and the outlet end of the second pipeline is connected with the reaction tank; the inlet end of the third pipeline is connected with the reaction tank; the outlet end of the third pipeline is connected with the vacuum pump. The device can realize automatic dosing, and is suitable for sewage treatment under specific vacuum conditions.

Description

Technical Field

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

[0002] In the field of sewage treatment, traditional sewage treatment technology has been unable to meet the requirements of high efficiency, energy saving and environmental protection. Therefore, dosing devices are widely used. They realize automated and intelligent operation, which not only improves the efficiency and quality of sewage treatment, but also reduces operating costs and environmental pollution risks. However, since sewage contains various impurities and particulate matter, its physical and chemical properties are complex and changeable. When sewage treatment needs to be carried out under a specific vacuum degree, traditional dosing devices face many difficulties. Under vacuum conditions, dosing devices need to have higher sealing and stability to prevent leakage of reagents and environmental pollution.

[0003] Chinese patent publication number: CN220245606U, discloses an automatic dosing device for sewage treatment. It includes a medicine dispensing box, a dosing port is provided on the top of the medicine dispensing box, a stirring blade is provided at the bottom of the inner cavity of the medicine dispensing box, the stirring blade is connected to the output end of the rotating motor through a rotating shaft, the upper end of the rotating shaft is fixedly connected to the water outlet pipe, the water outlet pipe is arranged horizontally, and a plurality of water outlets are provided on the water outlet pipe, and the water outlet pipe is rotated to connect to the water inlet pipe; the water inlet pipe and the rotating shaft are both arranged vertically, and the axes of the two are on the same straight line; the water inlet pipe passes through the upper wall of the medicine dispensing box and the outer wall of the water inlet pipe is fixedly connected to the medicine dispensing box, and a metering pump 1 is provided on the water inlet pipe; a medicine outlet pipe is provided at the lower part of the medicine dispensing box, and a metering pump 2 is provided on the medicine outlet pipe, one end of the medicine outlet pipe is rotatably connected to the dosing pipe, and a dosing nozzle is provided at the bottom of the dosing pipe; it also includes a controller, and the rotating motor, metering pump 1 and metering pump 2 are all electrically connected to the controller. It can be seen that the above technical scheme fails to fully consider the particularity of the sewage treatment environment, resulting in that the dosing device is not suitable for sewage treatment that requires a specific vacuum degree. Utility Model Content

[0004] To this end, the utility model provides a sewage treatment automatic dosing device to overcome the existing technology

[0005] The problem of difficulty in automatically adding chemicals to sewage treatment due to the need for a specific vacuum degree.

[0006] To achieve the above-mentioned purpose, the utility model provides an automatic dosing device for sewage treatment, comprising: a dosing box, a first pipeline, a temporary storage chamber, a second pipeline, a reaction tank, a third pipeline and a vacuum pump;

[0007] A water inlet pipe is provided at one end of the top of the medicine dispensing box, a first valve is provided in the water inlet pipe, and a medicine adding port is provided at the other end of the top of the medicine dispensing box;

[0008] The inlet end of the first pipeline is connected to the medicine dispensing box, and the outlet end of the first pipeline is connected to the temporary storage chamber, wherein a second valve is provided in the first pipeline;

[0009] The inlet end of the second pipeline is connected to the temporary storage chamber, and the outlet end of the second pipeline is connected to the reaction tank, wherein a third valve is provided in the second pipeline;

[0010] The inlet end of the third pipeline is connected to the reaction tank, and the outlet end of the third pipeline is connected to the vacuum pump.

[0011] Furthermore, a first flow meter is provided on the water inlet pipe.

[0012] Furthermore, a first stirring blade and a first motor are provided at the bottom of the medicine dispensing box, wherein the first motor is used to drive the first stirring blade to rotate.

[0013] Furthermore, a heating rod is provided at the bottom of the medicine dispensing box.

[0014] Furthermore, a second flow meter is arranged on the first pipeline.

[0015] Furthermore, a pressure gauge is provided in the third pipeline.

[0016] Furthermore, a second stirring blade and a second motor are provided at the bottom of the reaction tank, wherein the second motor is used to drive the second stirring blade to rotate.

[0017] Furthermore, a sealing cover is provided on the top of the reaction tank.

[0018] Furthermore, a control module is provided, which is respectively connected to the first valve, the second valve, the third valve and the vacuum pump, for controlling the switch of the first valve according to the indication of the first flow meter, for controlling the second valve according to the indication of the second flow meter, for controlling the switch of the third valve, and for controlling the switch of the vacuum pump according to the indication of the pressure gauge.

[0019] Compared with the prior art, the beneficial effect of the present invention lies in that the present invention is provided with a flow meter, which can monitor the flux in real time and ensure the accuracy of the dosage.

[0020] Furthermore, the utility model is provided with a temporary storage chamber to prevent excess air from entering the reaction tank during the drug addition process and affecting the vacuum degree in the reaction tank.

[0021] Furthermore, the utility model is provided with a heating rod and a stirring blade, which increases the rate of dispensing medicines, enhances the mixing effect of medicines and sewage, and improves the treatment efficiency.

[0022] Furthermore, the utility model is provided with a pressure gauge, which can monitor the air pressure in the reaction tank in real time, and accurately control the vacuum degree in the reaction tank in conjunction with the vacuum pump.

[0023] Furthermore, the utility model is provided with a control module, which realizes automatic drug addition, reduces labor costs, and improves the efficiency of sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of an automatic dosing device for sewage treatment according to an embodiment of the utility model;

[0025] In the figure: 1. medicine dispensing box; 11. water inlet pipe; 111. first flow meter; 12. first valve; 13. medicine adding port; 14. first stirring blade; 15. first motor; 16. heating rod; 2. first pipe; 21. second valve; 22. second flow meter; 3. temporary storage chamber; 4. second pipe; 41. third valve; 5. reaction tank; 51. second stirring blade; 52. second motor; 53. sealing cover; 6. third pipe; 61. pressure gauge; 7. vacuum pump. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model are described clearly and completely. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0027] It should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the utility model.

[0028] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0030] See also Figure 1 , which is a structural schematic diagram of an automatic dosing device for sewage treatment according to an embodiment of the utility model.

[0031] The utility model embodiment provides an automatic dosing device for sewage treatment, comprising: a dosing box 1, a first pipeline 2, a temporary storage chamber 3, a second pipeline 4, a reaction tank 5, a third pipeline 6 and a vacuum pump 7;

[0032] A water inlet pipe 11 is provided at one end of the top of the medicine dispensing box 1, a first valve 12 is provided in the water inlet pipe 11, and a medicine adding port 13 is provided at the other end of the top of the medicine dispensing box 1;

[0033] The inlet end of the first pipeline 2 is connected to the medicine dispensing box 1, and the outlet end of the first pipeline 2 is connected to the temporary storage chamber 3, wherein a second valve 21 is provided in the first pipeline 2;

[0034] The inlet end of the second pipeline 4 is connected to the temporary storage chamber 3, and the outlet end of the second pipeline 4 is connected to the reaction tank 5, wherein a third valve 41 is provided in the second pipeline 4;

[0035] The inlet end of the third pipeline 6 is connected to the reaction tank 5 , and the outlet end of the third pipeline 6 is connected to the vacuum pump 7 .

[0036] Specifically, a first flow meter 111 is provided on the water inlet pipe 11 .

[0037] Specifically, a first stirring blade 14 and a first motor 15 are disposed at the bottom of the medicine dispensing box 1 , wherein the first motor 15 is used to drive the first stirring blade 14 to rotate.

[0038] Specifically, a heating rod 16 is disposed at the bottom of the medicine dispensing box 1, and such a configuration can increase the dissolution rate of the medicine in water.

[0039] Specifically, a second flow meter 22 is provided on the first pipeline 2 .

[0040] Specifically, the first flow meter 111 and the second flow meter 22, such as an oval gear flow meter, a rotary flow meter, a piston flow meter, a rotor flow meter and an orifice flow meter, are used to measure and transport water without specific limitation.

[0041] Specifically, a pressure gauge 61 is disposed in the third pipeline 6 .

[0042] Specifically, a second stirring blade 51 and a second motor 52 are disposed at the bottom of the reaction tank 5 , wherein the second motor 52 is used to drive the second stirring blade 51 to rotate.

[0043] Specifically, a sealing cover 53 is provided on the top of the reaction tank 5 .

[0044] Specifically, the material of the sealing cover 53 is, for example, polytetrafluoroethylene, polypropylene or polyester, but is not specifically limited thereto, and only needs to meet the functions of being resistant to acid and alkali corrosion and high temperature.

[0045] Specifically, a control module is also provided, which is respectively connected to the first valve 12, the second valve 21, the third valve 41 and the vacuum pump 7, for controlling the switch of the first valve 12 according to the indication of the first flow meter 111, for controlling the second valve 21 according to the indication of the second flow meter 22, for controlling the switch of the third valve 41, and for controlling the switch of the vacuum pump 7 according to the indication of the pressure gauge 61.

[0046] Specifically, the control module, such as a PLC or a chip with a program set, is used to control the coordination of the switches of the entire device, without specific limitation.

[0047] The dosing process of the automatic dosing device for sewage treatment is as follows: the control module opens the first valve 12 to inject water into the medicine dispensing box 1 through the water inlet pipe 11. When the reading of the first flow meter 111 reaches the first preset value, the control module closes the first valve 12 and puts the weighed medicine through the dosing port 13. Under the working condition of the first stirring blade 14 controlled by the first motor 15, the water and the medicine are mixed evenly; the control module opens the second valve 21 to allow the medicine to flow into the temporary storage chamber 3 through the first pipe 2. When the second flow meter 22 reaches the second preset value, the control module closes the second valve 21; the control module opens the third valve 41 to allow the medicine in the temporary storage chamber 3 to flow into the reaction tank 5 through the second pipe 4, and at the same time turns on the vacuum pump 7 to extract the excess air in the reaction tank 5 through the third pipe 6. When the pressure gauge 61 reaches the third preset value, the vacuum pump 7 is turned off.

[0048] Specifically, the first preset value is, for example, 10L, the second preset value is, for example, 1L, and the third preset value is, for example, -0.01MPa, which are not specifically limited and can be set according to actual working conditions.

[0049] For those skilled in the art, according to the concept of the embodiments of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. An automatic dosing device for sewage treatment, characterized in that: include: A drug dispensing box, a first pipeline, a temporary storage chamber, a second pipeline, a reaction tank, a third pipeline and a vacuum pump; A water inlet pipe is provided at one end of the top of the medicine dispensing box, a first valve is provided in the water inlet pipe, and a medicine adding port is provided at the other end of the top of the medicine dispensing box; The inlet end of the first pipeline is connected to the medicine dispensing box, and the outlet end of the first pipeline is connected to the temporary storage chamber, wherein a second valve is provided in the first pipeline; The inlet end of the second pipeline is connected to the temporary storage chamber, and the outlet end of the second pipeline is connected to the reaction tank, wherein a third valve is provided in the second pipeline; The inlet end of the third pipeline is connected to the reaction tank, and the outlet end of the third pipeline is connected to the vacuum pump.

2. The automatic dosing device for sewage treatment according to claim 1 is characterized in that: The water inlet pipe is provided with a first flow meter.

3. The automatic dosing device for sewage treatment according to claim 1 is characterized in that: A first stirring blade and a first motor are disposed at the bottom of the medicine dispensing box, wherein the first motor is used to drive the first stirring blade to rotate.

4. The automatic dosing device for sewage treatment according to claim 1 is characterized in that: A heating rod is arranged at the bottom of the medicine dispensing box.

5. The automatic dosing device for sewage treatment according to claim 1 is characterized in that: A second flow meter is arranged on the first pipeline.

6. The automatic dosing device for sewage treatment according to claim 1 is characterized in that: A pressure gauge is arranged in the third pipeline.

7. The automatic dosing device for sewage treatment according to claim 1 is characterized in that: A second stirring blade and a second motor are disposed at the bottom of the reaction tank, wherein the second motor is used to drive the second stirring blade to rotate.

8. The automatic dosing device for sewage treatment according to claim 1, characterized in that: A sealing cover is arranged on the top of the reaction tank.

9. The automatic dosing device for sewage treatment according to claim 1, characterized in that: A control module is also provided, which is respectively connected to the first valve, the second valve, the third valve and the vacuum pump, and is used to control the switch of the first valve according to the indication of the first flow meter, to control the second valve according to the indication of the second flow meter, to control the switch of the third valve, and to control the switch of the vacuum pump according to the indication of the pressure gauge.

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