Automatic dosing assembly and wastewater treatment system

Abstract

The utility model relates to the technical field of wastewater treatment, and particularly discloses an automatic dosing assembly and a wastewater treatment system. Wherein the automatic dosing assembly comprises an adjusting tank, a dispensing tank, a vacuum pump and a mixing tank; the adjusting tank is used for storing wastewater; the dispensing tank is used for storing medicaments; a first feeding hole of the vacuum pump is communicated with a discharging hole of the adjusting tank; a second feeding hole of the vacuum pump is communicated with a discharging hole of the dispensing tank; and a discharge port of the vacuum pump is communicated with a feed port of the mixing tank. According to the scheme, negative pressure is formed through the vacuum pump, chemicals in the dispensing tank and waste water in the adjusting tank can be sucked, the chemicals and the waste water are preliminarily mixed in the vacuum pump and then conveyed to the mixing tank, and therefore the mixing reaction time of the waste water and a chemical solution is shortened, and meanwhile it is guaranteed that waste water conveying and chemical adding are conducted synchronously; and the occurrence of the conditions of excessive or insufficient medicament feeding, non-uniform medicament mixing and the like is avoided and reduced.

Description

Technical Field

[0001] The present application relates to the technical field of wastewater treatment, and in particular to an automatic dosing component and a wastewater treatment system. Background Art

[0002] Wastewater treatment requires the addition of chemicals to react with pollutants in the wastewater. The current method of adding chemicals generally involves first using a wastewater lift pump to extract the wastewater, passing it through a reaction tank and a sedimentation tank in sequence. Simultaneously, a chemical lift pump is used to deliver the chemical solution to the reaction tank, allowing the wastewater and chemical to mix and react.

[0003] However, during actual operation, the wastewater lifting pump and the chemical lifting pump are prone to asynchronous operation, resulting in excessive or insufficient chemical addition, uneven chemical mixing, and long mixing reaction time. This will increase the wastewater treatment costs and the labor intensity of the staff. During operation, it will also increase the consumption of electricity and chemicals, greatly reducing work efficiency. Utility Model Content

[0004] In view of this, the purpose of this application is to provide an automatic dosing component and a wastewater treatment system, which is used to solve the problem that the wastewater lifting pump and the chemical lifting pump in the existing wastewater treatment system are prone to asynchronous operation.

[0005] To achieve the above technical objectives, the present application provides, in a first aspect, an automatic dosing assembly, comprising: a regulating tank, a dispensing tank, a vacuum pump, and a mixing tank;

[0006] The regulating tank is used to store wastewater;

[0007] The dispensing tank is used to store medicine;

[0008] The first feed port of the vacuum pump is connected to the discharge port of the regulating tank;

[0009] The second feed port of the vacuum pump is connected to the discharge port of the dispensing tank;

[0010] The discharge port of the vacuum pump is connected to the feed port of the mixing tank.

[0011] Further, it also includes a lift pump;

[0012] The discharge port of the regulating tank is connected to the feed port of the lifting pump;

[0013] The discharge port of the lift pump is connected to the first feed port of the vacuum pump.

[0014] Furthermore, the vacuum pump is connected to a regulating valve;

[0015] The regulating valve is used to adjust the negative pressure inside the vacuum pump.

[0016] Furthermore, the second feed port of the vacuum pump is connected to the discharge port of the dispensing tank through a first pipeline;

[0017] The regulating valve is arranged on the first pipeline.

[0018] Furthermore, a vacuum pressure gauge is provided on the first pipeline.

[0019] Furthermore, a first pneumatic mixing mechanism is provided in the regulating tank.

[0020] Furthermore, a second pneumatic mixing mechanism is provided in the mixing tank.

[0021] Furthermore, the first pneumatic mixing mechanism and the second pneumatic mixing mechanism are both connected to a compressed air inlet pipe.

[0022] Furthermore, the discharge port of the vacuum pump is arranged directly above the feed port of the mixing tank.

[0023] A second aspect of the present application provides a wastewater treatment system comprising any of the automatic dosing components described above.

[0024] It can be seen from the above technical solution that the present application provides an automatic dosing component and a wastewater treatment system; wherein the automatic dosing component includes: a regulating tank, a dispensing tank, a vacuum pump and a mixing tank; the regulating tank is used to store wastewater; the dispensing tank is used to store medicine; the first feed port of the vacuum pump is connected to the discharge port of the regulating tank; the second feed port of the vacuum pump is connected to the discharge port of the dispensing tank; and the discharge port of the vacuum pump is connected to the feed port of the mixing tank.

[0025] In this solution, negative pressure is generated by a vacuum pump, which can absorb the medicine in the preparation tank and the wastewater in the adjustment tank, so that the medicine and wastewater are preliminarily mixed in the vacuum pump and then transported to the mixing tank, thereby shortening the mixing reaction time of the wastewater and medicine solution, and ensuring that the wastewater transportation and the medicine addition are carried out simultaneously, avoiding the occurrence of excessive or insufficient medicine addition, uneven medicine mixing, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 A wireframe diagram of an automatic dosing assembly provided in an embodiment of the present application;

[0028] In the figure: 1. regulating tank; 2. dispensing tank; 3. vacuum pump; 4. mixing tank; 11. lifting pump; 31. regulating valve; 32. vacuum pressure gauge; 51. first pipeline; 52. second pipeline; 53. third pipeline; 54. fourth pipeline; 55. fifth pipeline; 61. first pneumatic mixing mechanism; 62. second pneumatic mixing mechanism. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions of the embodiments of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection requested by this application.

[0030] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0031] In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, replaceable connections, or integral connections. They can also refer to mechanical connections or electrical connections. They can also refer to direct connections or indirect connections through an intermediate medium. They can also refer to internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0032] See also Figure 1 In a first aspect of the embodiment of the present application, an automatic dosing assembly is provided, comprising: a regulating tank 1, a dispensing tank 2, a vacuum pump 3 and a mixing tank 4. The vacuum pump 3 may be a jet vacuum pump.

[0033] The regulating tank 1 is used to store wastewater; the dispensing tank 2 is used to store medicine; the first feed port of the vacuum pump 3 is connected to the discharge port of the regulating tank 1; the second feed port of the vacuum pump 3 is connected to the discharge port of the dispensing tank 2; and the discharge port of the vacuum pump 3 is connected to the feed port of the mixing tank 4.

[0034] The discharge port of the regulating tank 1 can be connected to the first feed port of the vacuum pump 3 via a second pipe 52; the discharge port of the dispensing tank 2 can be connected to the second feed port of the vacuum pump 3 via a first pipe 51. The discharge port of the vacuum pump 3 is connected to the feed port of the mixing tank 4 via a third pipe 53.

[0035] During the treatment of wastewater, the vacuum pump 3 can form a negative pressure, thereby sucking the medicine in the preparation tank 2 and the wastewater in the adjustment tank 1, so that the medicine and wastewater are preliminarily mixed in the vacuum pump 3 and then transported to the mixing tank 4, thereby shortening the mixing reaction time of the wastewater and the medicine solution, and ensuring that the wastewater transportation and the medicine addition are carried out synchronously, avoiding the occurrence of excessive or insufficient medicine addition, uneven medicine mixing, etc., and reducing the investment and maintenance of the medicine solution delivery pump equipment.

[0036] At the same time, in the automatic dosing component, the vacuum pump 3 can be connected to the controller; the controller can control the dosing time and dosing amount of the dispensing tank 2 by controlling the start and stop and starting power of the vacuum pump 3, thereby solving the problems of long-term manual supervision for dosing, uneven dosing, long mixing reaction time, high operating costs and low work efficiency in the existing system. It has the characteristics of simple operation, good processing effect, low energy consumption, strong practicality and high work efficiency.

[0037] As one embodiment, regulating tank 1 can be a regulating tank for heavy metal-containing wastewater; the dispensing tank 2 can be injected with a heavy metal removal agent solution, such as one or more of polyferric sulfate, liquid caustic soda, and polyacrylamide, arranged in parallel. Heavy metal-containing wastewater primarily contains metal contaminants such as copper and nickel. The reaction principle is: pretreated heavy metal-containing wastewater is treated with a heavy metal removal agent solution, a complex reaction occurs, and the corresponding salt sludge is produced, which then proceeds to the next step.

[0038] In another embodiment, the regulating tank 1 can be an acidic or alkaline wastewater regulating tank; the dispensing tank 2 is injected with an acidic or alkaline wastewater neutralizing agent solution, such as liquid caustic soda or dilute sulfuric acid. Acidic or alkaline wastewater primarily includes wastewater containing waste acid or waste alkali. The reaction principle is: liquid caustic soda is used as the neutralizing agent solution for acidic wastewater, and dilute sulfuric acid is used as the neutralizing agent solution for alkaline wastewater. An acid-base neutralization reaction occurs to produce water and the corresponding sodium salt or sulfate, neutralizing the pH, and then proceeding to the next step.

[0039] In other embodiments, the regulating tank 1 can be a regulating tank for suspended solids wastewater; the dispensing tank 2 can be injected with a coagulant or flocculant solution, such as one or more solutions of polyferric sulfate, polyaluminum chloride, or polyacrylamide, arranged in parallel. Suspended solids wastewater primarily includes wastewater containing suspended particulate matter and fine dust particles. The reaction principle is to use one or more of polyferric sulfate, polyaluminum chloride, or polyacrylamide solutions to coagulate or flocculate the suspended solids wastewater, ultimately settling the suspended solids and clarifying the solution before proceeding to the next step.

[0040] In one embodiment, a lift pump 11 is further included; the discharge port of the regulating tank 1 is connected to the feed port of the lift pump 11; the discharge port of the lift pump 11 is connected to the first feed port of the vacuum pump 3. The lift pump 11 is used to extract wastewater from the regulating tank 1.

[0041] Optionally, the vacuum pump 3 is connected to a regulating valve 31 ; the regulating valve 31 is used to adjust the negative pressure inside the vacuum pump 3 .

[0042] The regulating valve 31 can be disposed on the first pipe 51. Specifically, the regulating valve 31 can be connected to the first pipe 51 via the fourth pipe 54. The regulating valve 31 is electrically connected to the controller, enabling the controller to control the opening of the regulating valve 31 based on the quality and quantity of the wastewater, thereby regulating the negative pressure within the vacuum pump 3. Ultimately, the controller can determine the optimal dosage of the reagent solution during commissioning and operation to ensure sufficient mixing and reaction between the wastewater and the reagent solution to achieve the optimal treatment effect.

[0043] Furthermore, a vacuum pressure gauge 32 is provided on the first pipe 51. The vacuum pressure gauge 32 is electrically connected to the controller and can be connected to the first pipe 51 via a fifth pipe 55 to detect the pressure within the first pipe 51, allowing the controller to obtain real-time pressure values ​​within the first pipe 51 and within the vacuum pump 3.

[0044] Optionally, the material of each of the above-mentioned pipes can be PPR engineering plastics.

[0045] Optionally, a first pneumatic mixing mechanism 61 is provided in the regulating tank 1 ; the first pneumatic mixing mechanism 61 can stir the wastewater in the regulating tank 1 so that the wastewater is evenly mixed and the water quality is stable.

[0046] Optionally, a second pneumatic mixing mechanism 62 is provided in the mixing tank 4 ; the second pneumatic mixing mechanism 62 can stir the wastewater and the agent in the mixing tank 4 to promote re-mixing of the agent and the wastewater.

[0047] Furthermore, the first pneumatic mixing mechanism 61 and the second pneumatic mixing mechanism 62 are both connected to the compressed air inlet pipe 63 .

[0048] In one embodiment, the discharge port of the vacuum pump 3 is arranged directly above the feed port of the mixing tank 4, so that the discharge port at the bottom of the vacuum pump 3 can face the feed port at the top of the mixing tank 4. This can ensure that the third pipe 53 is not bent, and can reduce the energy loss of the medium at the elbow, so that the jet system can generate the maximum negative pressure.

[0049] In order to prevent the pharmaceutical solution suction pipeline from failing to absorb the pharmaceutical solution and colliding with the dispensing stirring system, the discharge port on the top of the dispensing tank 2 is connected to a fixed pipeline at a vertical distance of about 5 cm from the bottom of the dispensing tank 2 and a horizontal distance of not less than 10 cm from the stirring paddle on the dispensing tank 2.

[0050] A second aspect of the present application provides a wastewater treatment system comprising any of the above-mentioned automatic dosing components.

[0051] The above are only preferred embodiments of the present application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the aforementioned examples or make equivalent replacements for some of the technical features therein. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic dosing component, characterized in that: include: A regulating tank (1), a dispensing tank (2), a vacuum pump (3) and a mixing tank (4); The regulating tank (1) is used to store wastewater; The medicine dispensing tank (2) is used for storing medicine; The first feed port of the vacuum pump (3) is connected to the discharge port of the regulating tank (1); The second feed port of the vacuum pump (3) is connected to the discharge port of the dispensing tank (2); The discharge port of the vacuum pump (3) is connected to the feed port of the mixing tank (4).

2. The automatic dosing assembly according to claim 1, characterized in that: Also included is a lift pump (11); The discharge port of the regulating tank (1) is connected to the feed port of the lifting pump (11); The discharge port of the lift pump (11) is connected to the first feed port of the vacuum pump (3).

3. The automatic dosing assembly according to claim 1, characterized in that: The vacuum pump (3) is connected to a regulating valve (31); The regulating valve (31) is used to adjust the negative pressure inside the vacuum pump (3).

4. The automatic dosing assembly according to claim 3, characterized in that: The second feed port of the vacuum pump (3) is connected to the discharge port of the dispensing tank (2) through a first pipe (51); The regulating valve (31) is arranged on the first pipeline (51).

5. The automatic dosing assembly according to claim 4, characterized in that: A vacuum pressure gauge (32) is provided on the first pipeline (51).

6. The automatic dosing assembly according to claim 1, characterized in that: A first pneumatic mixing mechanism (61) is provided in the regulating tank (1).

7. The automatic dosing assembly according to claim 6, characterized in that: A second pneumatic mixing mechanism (62) is provided in the mixing tank (4).

8. The automatic dosing assembly according to claim 7, characterized in that: The first pneumatic mixing mechanism (61) and the second pneumatic mixing mechanism (62) are both connected to a compressed air inlet pipe (63).

9. The automatic dosing assembly according to claim 1, characterized in that: The discharge port of the vacuum pump (3) is arranged directly above the feed port of the mixing tank (4).

10. A wastewater treatment system, characterized in that: The automatic dosing component comprises the automatic dosing component according to any one of claims 1 to 9.

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