Volatile material preparation assembly and wastewater treatment system

Abstract

The utility model relates to the technical field of wastewater treatment, and particularly discloses a volatile material preparation assembly and a wastewater treatment system. Wherein the volatile material preparation assembly comprises a dispensing tank, a mixing tank and a jet pump; the dispensing tank is used for preparing volatile materials; a first feeding hole of the jet pump is connected with a first pipeline and a second pipeline; the first pipeline is communicated with the top of the dispensing tank; the second pipeline is communicated with the bottom of the dispensing tank; a discharge hole of the jet pump is connected with a third pipeline; the third pipeline is connected with the mixing tank. According to the scheme, materials and waste gas in the dispensing tank can be pumped through the jet pump, so that the materials and the waste gas are preliminarily mixed in the jet pump and then enter the mixing tank to be mixed again, the waste gas and the materials fully react to achieve treatment of the waste gas, and the waste gas is prevented from entering the environment. Meanwhile, by arranging the volatile material configuration assembly, the structure of the wastewater treatment system is simplified, and the wastewater treatment system does not need to be provided with a complex tail gas treatment device.

Description

Technical Field

[0001] This application relates to the technical field of wastewater treatment, and particularly to a volatile material configuration component and a wastewater treatment system. Background Art

[0002] In the process of wastewater treatment, it is often necessary to configure and add some volatile materials to treat pollutants in the wastewater, such as volatile materials like nitric acid, hydrochloric acid, ammonia water, sodium sulfide, heavy metal scavenger, ammonia nitrogen remover, etc. During the process of configuring and adding volatile materials, due to heat release during dissolution, violent chemical reactions, uneven mixing of materials, etc., a large amount of waste gas containing irritating gases or fumes will be volatilized from the materials, and some of the waste gas is corrosive and toxic. Entering the environment will pollute the working environment and cause harm to the physical health of the staff. Therefore, this part of the waste gas needs to be treated.

[0003] The existing waste gas treatment methods generally add a tail gas treatment device to the wastewater treatment system, making the structure of the system complex and increasing the construction cost. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a volatile material configuration component and a wastewater treatment system, which are used to solve the problems that the existing wastewater treatment system has a complex structure and a high construction cost.

[0005] To achieve the above technical purpose, the first aspect of this application provides a volatile material configuration component, including: a medicine preparation tank, a mixing tank, and a jet pump;

[0006] The medicine preparation tank is used to configure volatile materials;

[0007] The first feed port of the jet pump is connected with a first pipeline and a second pipeline;

[0008] The first pipeline communicates with the top of the medicine preparation tank;

[0009] The second pipeline communicates with the bottom of the medicine preparation tank;

[0010] The discharge port of the jet pump is connected with a third pipeline;

[0011] The third pipeline is connected to the mixing tank.

[0012] Further, a first valve for controlling the opening degree of the first pipeline is provided on the first pipeline.

[0013] Further, a second valve for controlling the opening degree of the second pipeline is provided on the second pipeline.

[0014] Further, a vacuum pressure gauge is connected to the first feed port of the jet pump.

[0015] Further, it further includes a circulation pump;

[0016] One end of the circulation pump is connected to the discharge port of the mixing tank through a fourth pipeline, and the other end of the circulation pump is connected to the second feed port of the jet pump through a fifth pipeline, so as to form a material circulation channel among the circulation pump, the jet pump and the mixing tank.

[0017] Further, a circulation valve is provided on the fifth pipeline or the fourth pipeline.

[0018] Further, a circulation valve is provided on the fifth pipeline;

[0019] A sixth pipeline is connected to the fifth pipeline, and the sixth pipeline is connected between the circulation pump and the circulation valve;

[0020] A transfer valve is provided at the first outlet of the sixth pipeline.

[0021] Further, a sampling valve is provided at the second outlet of the sixth pipeline.

[0022] Further, a pneumatic mixing mechanism is provided in the mixing tank.

[0023] The second aspect of the present application provides a wastewater treatment system, including the volatile material configuration component described in any one of the above.

[0024] It can be seen from the above technical solutions that the present application provides a volatile material configuration component and a wastewater treatment system; wherein, the volatile material configuration component includes: a medicine preparation tank, a mixing tank and a jet pump; the medicine preparation tank is used for preparing volatile materials; the first feed port of the jet pump is connected with a first pipeline and a second pipeline; the first pipeline communicates with the top of the medicine preparation tank; the second pipeline communicates with the bottom of the medicine preparation tank; the discharge port of the jet pump is connected with a third pipeline; the third pipeline is connected to the mixing tank.

[0025] In this solution, the jet pump can extract the materials and waste gas in the medicine preparation tank, so that the materials and waste gas are initially mixed in the jet pump and then enter the mixing tank for re-mixing, so that the waste gas and the materials fully react to realize the treatment of the waste gas and avoid the waste gas from entering the environment. At the same time, by setting the volatile material configuration component, it helps to simplify the structure of the wastewater treatment system, and enables the wastewater treatment system not to need to set up a complex tail gas treatment device, effectively solving the problems of the existing wastewater treatment system with complex structure and high construction cost. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0027] Figure 1 A wireframe schematic diagram of a volatile material configuration component provided by an embodiment of the present application;

[0028] In the figure: 1, medicine dispensing tank; 2, mixing tank; 3, jet pump; 41, first pipeline; 42, second pipeline; 43, third pipeline; 44, fourth pipeline; 45, fifth pipeline; 46, sixth pipeline; 51, first valve; 52, second valve; 53, circulation valve; 54, transfer valve; 55, sampling valve; 6, vacuum pressure gauge; 7, circulation pump; 8, pneumatic mixing mechanism; 81, compressed air inlet pipe. Specific embodiments

[0029] The following will clearly and completely describe the technical solutions of the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this specification of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope claimed by the present application.

[0030] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot 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 clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a replaceable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill 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] Please refer toFigure 1 , in the first aspect of the embodiments of the present application, a volatile material configuration component is provided, including: a medicine dispensing tank 1, a mixing tank 2, and a jet pump 3.

[0033] The medicine dispensing tank 1 is used to configure volatile materials; the process of configuring volatile materials will generate waste gas at the top of the medicine dispensing tank 1. It should be noted that the process of configuring volatile materials in the medicine dispensing tank 1 can be the configuration process in the prior art and will not be elaborated in this solution.

[0034] The first feed port of the jet pump 3 is connected with a first pipeline 41 and a second pipeline 42; the first pipeline 41 communicates with the top of the medicine dispensing tank 1; the second pipeline 42 communicates with the bottom of the medicine dispensing tank 1; the discharge port of the jet pump 3 is connected with a third pipeline 43; the third pipeline 43 is connected to the mixing tank 2.

[0035] The jet pump 3 can be a jet vacuum pump, which can form a negative pressure to extract the materials and waste gas in the medicine dispensing tank 1, so as to realize the extraction of the materials and waste gas in the medicine dispensing tank 1 into the mixing tank 2 for reaction, so as to treat the wastewater and eliminate the waste gas at the same time.

[0036] Taking the treatment of ammonia nitrogen-containing wastewater as an example, ammonia nitrogen-containing wastewater can be added into the mixing tank 2, that is, the mixing tank 2 is an ammonia nitrogen removal reaction tank; an ammonia nitrogen removal agent solution is injected into the medicine dispensing tank 1. Ammonia nitrogen-containing wastewater mainly includes wastewater containing free ammonia (NH3), wastewater containing ammonium chloride (NH4Cl), wastewater containing ammonium sulfate [(NH4)2SO4], etc. The reaction principle is that the ammonia nitrogen-containing wastewater and the ammonia nitrogen removal agent solution mainly carry out mixing and redox reactions to oxidize the ammonia nitrogen in the wastewater into nitrogen gas, which is discharged into the atmosphere. After the treated wastewater is sampled and tested to be qualified, it enters the next process.

[0037] Taking the treatment of acidic or alkaline wastewater as an example, acidic or alkaline wastewater can be added into the mixing tank 2, that is, the mixing tank 2 is a neutralization reaction tank; an acidic or alkaline wastewater neutralization agent solution, such as one of nitric acid, hydrochloric acid, and ammonia water, is injected into the medicine dispensing tank 1. Acidic or alkaline wastewater mainly includes wastewater containing waste acid or waste alkali. The reaction principle is that ammonia water is selected as the neutralizing agent for acidic wastewater, and dilute nitric acid and dilute hydrochloric acid are selected as the neutralizing agents for alkaline wastewater. The acid-base neutralization reaction generates water and corresponding ammonium salts, nitrates, hydrochlorides, etc. After sampling and testing to be qualified, it enters the next process.

[0038] Taking the treatment of heavy metal-containing wastewater as an example, heavy metal-containing wastewater can be added into the mixing tank 2, that is, the mixing tank 2 is for heavy metal precipitation reaction; one of sodium sulfide solution and heavy metal capturer solution is injected into the chemical dosing tank 1. The heavy metal-containing wastewater mainly includes metal pollution factors such as copper and nickel. The reaction principle is that the pretreated heavy metal-containing wastewater selects sodium sulfide solution, heavy metal capturer solution, etc. as heavy metal removal agents, and the heavy metal-containing wastewater reacts with the heavy metal capturer to obtain the corresponding salt sludge, and after sampling and passing the inspection, it enters the next solid-liquid separation process.

[0039] Two discharge ports can be arranged at the top of the chemical dosing tank 1; one discharge port of the chemical dosing tank 1 is connected to a position about 5 cm vertically away from the bottom of the chemical dosing tank 1 through the second pipeline 42, that is, the second pipeline 42 extends into the chemical dosing tank 1 to a position about 5 cm away from the bottom of the chemical dosing tank 1, and the horizontal distance between the second pipeline 41 and the stirring paddle in the chemical dosing tank 1 is not less than 10 cm; the first pipeline 41 may not extend into the chemical dosing tank 1, only connecting to the other discharge port of the chemical dosing tank 1, and the horizontal interval distance between the second pipeline 41 and the first pipeline 41 is not less than the radius of the chemical dosing tank 1.

[0040] Optionally, the jet pump 3 is vertically placed above the top of the mixing tank 2; the discharge port at the bottom of the jet pump 3 is directly opposite to the feed port at the top of the mixing tank 2. This can ensure that the third pipeline 43 is not bent, reduce the loss of medium energy at the elbow, and thus maximize the negative pressure generated by the jet system.

[0041] In the application, a first valve 51 for controlling the opening degree of the first pipeline 41 is arranged on the first pipeline 41. A second valve 52 for controlling the opening degree of the second pipeline 42 is arranged on the second pipeline 42. The first pipeline 41 and the second pipeline 41 can be combined into a tee pipe.

[0042] Optionally, a vacuum pressure gauge 6 is connected to the first feed port of the jet pump 3, which is convenient for the staff to observe the pressure inside the first pipeline 41 and the second pipeline 42 and adjust the opening degrees of the first valve 51 and the second valve 52.

[0043] In one embodiment, a circulation pump 7 is further included; one end of the circulation pump 7 is connected to the discharge port of the mixing tank 2 through the fourth pipeline 44, and the other end of the circulation pump 7 is connected to the second feed port of the jet pump 3 through the fifth pipeline 45, so as to form a material circulation channel among the circulation pump 7, the jet pump 3 and the mixing tank 2.

[0044] The working principle of the volatile material configuration component provided by this application is to use the circulation pump 7 to circulate and transport the wastewater in the mixing tank 2 through the jet pump 3, so that the jet pump 3 forms a negative pressure. When configuring the solution of the volatile material, the negative pressure system can be used to collect the waste gas generated during the material configuration process, and preliminarily mix it with the wastewater in the jet pump 3, and then fully mix and react to treat the waste gas in the mixing tank 2 under the pneumatic mixing mechanism 8. That is, a pneumatic mixing mechanism 8 is provided in the mixing tank 2; the pneumatic mixing mechanism 8 is connected with a compressed air inlet pipe 81, which can transmit compressed air into the mixing tank 2 to disturb the materials in the mixing tank 2, thereby improving the mixing effect in the mixing tank 2.

[0045] When adding the volatile material solution, the magnitude of the negative pressure is controlled by the first valve 51. Under the condition of negative pressure, the reagent solution in the dosing tank 1 is sucked, and is preliminarily mixed with the wastewater in the jet pump 3, and then fully mixed and reacted in the mixing tank 2 under the pneumatic mixing system. Finally, after sampling and testing qualified, it is transferred to the next process.

[0046] The whole process reduces the addition of the tail gas absorption liquid. The volatile material solution and the volatile gas are maximally mixed and reacted with the wastewater, reducing the wastewater treatment cost, reducing the investment and maintenance of the reagent delivery pump equipment, greatly shortening the mixing and reaction time of the wastewater and the reagent, saving most of the power consumption and operating costs, and achieving the purpose of treating waste with waste and energy conservation and consumption reduction.

[0047] Optionally, a circulation valve 53 is provided on the fifth pipeline 45 or the fourth pipeline 44.

[0048] In one embodiment, a circulation valve 53 can be provided on the fifth pipeline 45; a sixth pipeline 46 is connected to the fifth pipeline 45, and the sixth pipeline 46 is connected between the circulation pump 7 and the circulation valve 53; a transfer valve 54 is provided at the first outlet of the sixth pipeline 46. A sampling valve 55 is provided at the second outlet of the sixth pipeline 46.

[0049] After closing the circulation valve 53, the fully mixed materials in the mixing tank 2 can enter the sixth pipeline 46; when the transfer valve 54 is opened, the materials can be discharged through the transfer valve 54 to the tank body in the next process; when the sampling valve 55 is opened and the transfer valve 54 is closed, the materials can be discharged through the sampling valve 55 for the staff to sample, so as to enable the staff to judge whether the materials in the mixing tank 2 are fully reacted.

[0050] Each pipeline in the embodiment of this application can be made of PPR engineering plastic.

[0051] The second aspect of this application provides a wastewater treatment system, including the volatile material configuration component of any one of the above.

[0052] The wastewater treatment system configured with the above-mentioned volatile material configuration components can, through the cooperation of the above-mentioned mixing tank 2, chemical dosing tank 1 and jet pump 3, achieve the treatment of waste gas during the mixing process without the need to configure complex waste gas reaction devices and waste gas emission devices, and can effectively reduce the system complexity and construction cost of the wastewater treatment system.

[0053] The above are the preferred embodiments of the present application and are not used to limit the present invention. Although the present application has been described in detail with reference to the examples, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing examples, or perform equivalent replacements for some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A volatile material configuration component, characterized in that: include: A dispensing tank (1), a mixing tank (2) and a jet pump (3); The medicine dispensing tank (1) is used to prepare volatile materials; The first feed port of the jet pump (3) is connected to a first pipeline (41) and a second pipeline (42); The first pipe (41) is connected to the top of the medicine dispensing tank (1); The second pipe (42) is connected to the bottom of the medicine dispensing tank (1); The discharge port of the jet pump (3) is connected to a third pipeline (43); The third pipeline (43) is connected to the mixing tank (2).

2. The volatile material configuration component according to claim 1, characterized in that: The first pipeline (41) is provided with a first valve (51) for controlling the opening degree of the first pipeline (41).

3. The volatile material configuration component according to claim 1 or 2, characterized in that: The second pipeline (42) is provided with a second valve (52) for controlling the opening degree of the second pipeline (42).

4. The volatile material configuration component according to claim 1, characterized in that: The first feed port of the jet pump (3) is connected to a vacuum pressure gauge (6).

5. The volatile material configuration component according to claim 1, characterized in that: Also includes a circulation pump (7); One end of the circulation pump (7) is connected to the discharge port of the mixing tank (2) via a fourth pipeline (44), and the other end of the circulation pump (7) is connected to the second feed port of the jet pump (3) via a fifth pipeline (45), so that a material circulation channel is formed between the circulation pump (7), the jet pump (3) and the mixing tank (2).

6. The volatile material configuration assembly according to claim 5, characterized in that: The fifth pipeline (45) or the fourth pipeline (44) is provided with a circulation valve (53).

7. The volatile material configuration assembly according to claim 5, characterized in that: The fifth pipeline (45) is provided with a circulation valve (53); The fifth pipeline (45) is connected to a sixth pipeline (46), and the sixth pipeline (46) is connected between the circulation pump (7) and the circulation valve (53); The first outlet of the sixth pipeline (46) is provided with a material transfer valve (54).

8. The volatile material configuration assembly according to claim 7, characterized in that: The second outlet of the sixth pipeline (46) is provided with a sampling valve (55).

9. The volatile material configuration assembly according to claim 1, characterized in that: A pneumatic mixing mechanism (8) is provided in the mixing tank (2).

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

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