A dosing device for industrial sewage treatment

Abstract

The present application provides an industrial sewage treatment dosing device, which belongs to the technical field of industrial sewage treatment. The industrial sewage treatment dosing device includes a pipe body, which is connected in series in an external sewage pipe. A dosing tube is arranged in an array around the inner wall of the pipe body. A drug supply mechanism is arranged outside the pipe body and is connected to the dosing tube. A flow monitoring mechanism is arranged inside the pipe body, and the flow monitoring mechanism is linked to the drug supply mechanism. In this application: the flow monitoring mechanism monitors the flow of sewage, and the drug supply mechanism directly adds a specified amount of medicine into the flowing sewage through the dosing tube according to the sewage flow, so that the mixing is more uniform, and no stirring mechanism is required, and the degree of automation is high. In addition, the entire device can be directly installed on the existing sewage pipe without changing the sewage pipe and sewage pool, and the use cost is low.

Description

Technical Field

[0001] The present application relates to the technical field of industrial wastewater treatment, and in particular to an industrial wastewater treatment dosing device. Background Art

[0002] Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, catering, etc., and is increasingly entering the daily lives of ordinary people. With the continuous improvement of industrial development, industrial wastewater treatment has become one of the important government projects.

[0003] In this regard, China's patent application number CN202023289458.3 discloses an industrial sewage treatment dosing device. This scheme mainly provides a dosing box on the side of the top of the sewage treatment tank, and a dosing port is provided on the top of the dosing box, and a second liquid level sensor is provided on the upper end of the inner wall of the dosing box. An observation window is provided on the side of the dosing box, and a capacity scale line is provided on the surface of the observation window. The second liquid level sensor can be used to warn of the capacity of the dosing box. At the same time, the setting of the observation window enables workers to intuitively check the amount of medicine in the dosing box.

[0004] However, in the process of implementing the technical solution in the embodiments of the present application, the inventor of the present application found that the above technology has at least the following technical problems:

[0005] 1. Industrial sewage may require multiple chemicals, each of which requires a separate dosing box, and requires early warning and workers to check, which is troublesome;

[0006] 2. A stirring device is required to help mix the medicine, which is more expensive;

[0007] 3. Sewage treatment tanks need to be newly designed and manufactured and cannot be used in existing sewage pools and sewage pipes, which is very costly. Utility Model Content

[0008] In order to make up for the above deficiencies, the present application provides an industrial wastewater treatment dosing device, which aims to improve the problems mentioned in the above background technology.

[0009] An embodiment of the present application provides an industrial sewage treatment dosing device, including a pipe body, which is connected in series in an external sewage pipe, and an array of dosing tubes is arranged around the inner wall of the pipe body, a drug supply mechanism is arranged outside the pipe body and connected to the dosing tubes, and a flow monitoring mechanism is arranged inside the pipe body, and the flow monitoring mechanism is linked to the drug supply mechanism.

[0010] In a specific implementation manner, both ends of the tube body are provided with flanges.

[0011] In the above implementation process, the flanges at both ends of the pipe body are convenient for serial connection to the sewage pipe.

[0012] In a specific embodiment, the pipe body is installed near the inlet of the sewage tank.

[0013] In the above implementation process, after the sewage is mixed with the reagent, it immediately enters the sewage pool and settles inside, thereby avoiding sedimentation in the pipe and causing blockage.

[0014] In a specific embodiment, the cross-section of the inner end of the dosing tube is drop-shaped, and the inner end of the dosing tube is tilted backward.

[0015] In the above implementation process, the teardrop shape is used to reduce fluid resistance, and the backward tilt is used to prevent foreign objects in the sewage from getting hooked on the dosing pipe and causing blockage.

[0016] In a specific embodiment, the flow monitoring mechanism includes two pressure sensors, one of which is disposed between two adjacent dosing tubes, and the other of which is disposed away from the dosing tubes.

[0017] In the above implementation process, one of the pressure sensors is in an empty pipe body position with a certain pressure, and the dosing pipe causes the current water flow cross-section to become smaller and the flow rate to increase. Therefore, the pressure sensor here detects a smaller pressure. According to the two measured pressure values ​​and the characteristics of the pipe body, the corresponding formula or algorithm can be used to calculate the water flow. Common calculation methods include the pressure difference method and the flow coefficient method. It should be noted that in order to improve accuracy, the pipe body may need to be set long enough, or one of the sensors may be set upstream of the sewage pipe. This indirect method is not accurate, but there is no need to set a rotating structure such as a turbine in the pipe body, which is conducive to the smooth flow of the pipe body. In another embodiment, a conventional turbine flow sensor is directly used.

[0018] In a specific embodiment, the drug supply mechanism includes a bracket and a medicine box, the medicine box is installed on the tube body through the bracket, the drug adding tube is connected to the medicine box, and a compartment adapted to each of the drug adding tubes is provided in the medicine box.

[0019] In a specific embodiment, each of the drug adding tubes is provided with a metering pump.

[0020] In the above implementation process, the medicine box is used to add industrial sewage treatment chemicals, each compartment stores different chemicals, and the chemicals are added into the pipe body through respective metering pumps and dosing pipes.

[0021] In a specific embodiment, each compartment is provided with a medicine replenishing interface and a liquid level sensor.

[0022] In the above implementation process, the liquid level sensor is used to detect the amount of medicine in the medicine box, and the medicine replenishment interface is used to connect to the external medicine box. When the liquid level sensor detects that the amount of medicine is small, the external medicine box pumps a specified amount of medicine into the medicine box. In this embodiment, the medicine box is provided with a cover, and medicine can also be added manually.

[0023] Compared with the prior art, the beneficial effects of the present application are: the flow monitoring mechanism monitors the flow of sewage, and the medicine supply mechanism adds a specified amount of medicine directly into the flowing sewage through the medicine adding pipe according to the sewage flow, so that the mixing is more uniform, and no stirring mechanism is required, and the degree of automation is high. In addition, the entire device can be directly installed on the existing sewage pipe without changing the sewage pipe and sewage pool, and the use cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of a first-view of an industrial wastewater treatment dosing device provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of a second perspective of an industrial wastewater treatment dosing device provided in an embodiment of the present application;

[0027] Figure 3 Schematic diagram of the connection relationship between the drug adding tube and the drug supply mechanism provided in the embodiment of the present application.

[0028] In the figure: 10 - tube body; 20 - drug adding tube; 30 - drug supply mechanism; 31 - bracket; 32 - medicine box; 33 - metering pump; 34 - drug replenishment interface; 35 - liquid level sensor; 40 - pressure sensor. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0030] See also Figure 1-Figure 3The present application provides an industrial sewage treatment dosing device, including a pipe body 10, the pipe body 10 is connected in series in an external sewage pipe, a dosing tube 20 is arrayed around the inner wall of the pipe body 10, a drug supply mechanism 30 is arranged outside the pipe body 10 and is connected to the drug supply tube 20, and a flow monitoring mechanism is arranged inside the pipe body 10, and the flow monitoring mechanism is linked to the drug supply mechanism 30. Among them, the flow monitoring mechanism monitors the flow of sewage, and the drug supply mechanism 30 directly adds a specified amount of medicine to the flowing sewage through the drug supply tube 20 according to the sewage flow, so that the mixing is more uniform, and no stirring mechanism is required, and the degree of automation is high. In addition, the entire device can be directly installed on the existing sewage pipe, without changing the sewage pipe and sewage pool, and the use cost is low.

[0031] See also Figure 1-Figure 3 , flanges are provided at both ends of the pipe body 10. The flanges at both ends of the pipe body 10 are convenient for being connected in series to the sewage pipe.

[0032] See also Figure 1-Figure 3 The pipe body 10 is installed near the entrance of the sewage pool. After the sewage is mixed with the reagent, it immediately enters the sewage pool and settles inside, avoiding sedimentation in the pipeline and causing blockage.

[0033] See also Figure 1-Figure 3 The cross section of the inner end of the dosing tube 20 is a water drop shape, and the inner end of the dosing tube 20 is tilted backward. The water drop shape is used to reduce fluid resistance, and the backward tilt is used to prevent foreign objects in the sewage from hooking on the dosing tube 20 and causing blockage.

[0034] See also Figure 1-Figure 3 The flow monitoring mechanism includes two pressure sensors 40, one of which is set between two adjacent dosing tubes 20, and the other is set away from the dosing tube 20. One of the pressure sensors 40 is located in the empty pipe body 10 and has a certain pressure, and the dosing tube 20 causes the current water flow section to become smaller and the flow rate to increase, so the pressure sensor 40 here detects a smaller pressure. According to the two measured pressure values ​​and the characteristics of the pipe body 10 such as diameter, length and roughness, the corresponding formula or algorithm can be used to calculate the water flow. Common calculation methods include pressure difference method and flow coefficient method. It should be noted that in order to improve accuracy, the pipe body 10 may need to be set long enough, or one of the sensors may be set upstream of the sewage pipe. This indirect method has a low accuracy rate, but it is not necessary to set a rotating structure such as a turbine in the pipe body 10, which is conducive to the smooth flow of the pipe body 10. In another embodiment, a conventional turbine flow sensor is directly used.

[0035] See also Figure 1-Figure 3The medicine supply mechanism 30 includes a bracket 31 and a medicine box 32. The medicine box 32 is installed on the pipe body 10 through the bracket 31. The dosing pipe 20 is connected to the medicine box 32. The medicine box 32 is provided with a compartment adapted to each dosing pipe 20. Each dosing pipe 20 is provided with a metering pump 33. The medicine box 32 is used to add industrial sewage treatment chemicals. Different chemicals are stored in each compartment, and chemicals are added to the pipe body 10 through their respective metering pumps 33 and dosing pipes 20.

[0036] See also Figure 1-Figure 3 Each compartment is provided with a medicine replenishment interface 34 and a liquid level sensor 35. The liquid level sensor 35 is used to detect the amount of medicine in the medicine box 32, and the medicine replenishment interface 34 is used to connect with an external medicine box. When the liquid level sensor 35 detects that the amount of medicine is small, the external medicine box pumps a specified amount of medicine into the medicine box 32. In this embodiment, the medicine box 32 is provided with a cover plate, and medicine can also be added manually.

[0037] The working principle of the dosing device for industrial sewage treatment is: the pipe body 10 is connected in series to a position on the sewage pipe near the sewage pool in a specified direction. When the sewage flows through the pipe body 10, the two pressure sensors 40 detect different pressures, and the industrial computer converts and then controls the metering pump 33 to pump a specified amount of agent into the pipe body 10. The agent is directly mixed into the water flow, and the agent is added completely. In summary, the flow monitoring mechanism monitors the flow of sewage, and the drug supply mechanism 30 adds the specified amount of agent directly into the flowing sewage through the dosing pipe 20 according to the sewage flow, so that the mixing is more uniform, and no stirring mechanism is required, with a high degree of automation. In addition, the entire device can be directly installed on the existing sewage pipe without changing the sewage pipe and sewage pool, and the cost of use is low.

[0038] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, improvement or equivalent replacement made within the spirit and principle of the present application shall be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. An industrial wastewater treatment dosing device, characterized in that: The invention comprises a pipe body (10), wherein the pipe body (10) is connected in series to an external sewage pipe, wherein a drug-feeding pipe (20) is arranged in an array around the inner wall of the pipe body (10), wherein a drug-feeding mechanism (30) is arranged outside the pipe body (10) and is connected to the drug-feeding pipe (20), and wherein a flow monitoring mechanism is arranged inside the pipe body (10), and the flow monitoring mechanism is linked to the drug-feeding mechanism (30).

2. The industrial wastewater treatment dosing device according to claim 1 is characterized in that: Both ends of the tube body (10) are provided with flanges.

3. The industrial wastewater treatment dosing device according to claim 2 is characterized in that: The pipe body (10) is installed near the entrance of the sewage tank.

4. The dosing device for industrial wastewater treatment according to claim 3 is characterized in that: The cross section of the inner end of the dosing tube (20) is in the shape of a water drop, and the inner end of the dosing tube (20) is arranged to be tilted backwards.

5. The industrial wastewater treatment dosing device according to claim 4, characterized in that: The flow monitoring mechanism comprises two pressure sensors (40), wherein one of the pressure sensors (40) is arranged between two adjacent dosing tubes (20), and the other pressure sensor (40) is arranged away from the dosing tube (20).

6. The dosing device for industrial wastewater treatment according to claim 5, characterized in that: The medicine supply mechanism (30) comprises a bracket (31) and a medicine box (32); the medicine box (32) is mounted on the tube body (10) via the bracket (31); the medicine adding tube (20) is connected to the medicine box (32); and a compartment adapted to each of the medicine adding tubes (20) is provided in the medicine box (32).

7. The dosing device for industrial wastewater treatment according to claim 6, characterized in that: Each of the drug adding pipes (20) is provided with a metering pump (33).

8. The dosing device for industrial wastewater treatment according to claim 7, characterized in that: Each compartment is provided with a medicine replenishing interface (34) and a liquid level sensor (35).

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