Carbon source feeding device for nitrate nitrogen detection feedback

Abstract

The utility model discloses a carbon source feeding device for nitrate nitrogen detection feedback, which comprises a nitrification and denitrification tank, a carbon source box is arranged above the nitrification and denitrification tank, the upper end of the carbon source box is provided with a feed port, the bottom of the carbon source box is fixedly connected with a flow collecting piece, the carbon source box is communicated with the flow collecting piece, and the feed port is communicated with the flow collecting piece. A flow collecting piece is arranged in the nitrification and denitrification tank, a discharging port is formed in the bottom of the flow collecting piece, an air cylinder is fixedly installed on the side wall of the flow collecting piece, a telescopic rod of the air cylinder penetrates through the flow collecting piece in a sliding mode and is located in the discharging port, and a controller is further fixedly installed at the upper end of the nitrification and denitrification tank. The controller electrically connected with the flow meter is used for controlling the electromagnetic valve of the air cylinder, and the electromagnetic valve enables the extension length of the telescopic rod of the air cylinder to be inversely proportional to the flow of the sewage, so that it is guaranteed that the fed carbon source is in direct proportion to the fed sewage, and then accurate feeding of the carbon source is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a carbon source dosing device for nitrate nitrogen detection and feedback. Background Art

[0002] Sewage treatment plants are facing increasingly stringent requirements for total nitrogen in their effluents. This removal is typically achieved through biological denitrification, which occurs through nitrification and denitrification processes. Based on the principles of biological denitrification, monitoring nitrate-nitrogen concentrations in nitrification and denitrification tanks is crucial for monitoring the effectiveness of biological denitrification.

[0003] In current biological denitrification, total nitrogen removal ultimately returns to the natural environment in the form of nitrogen gas. Nitrate nitrogen, as a reactant in denitrification, often acts as an electron acceptor under anoxic conditions to react with organic carbon sources to generate nitrogen gas. Precise control of the addition of organic carbon sources is a critical requirement for reducing costs and increasing efficiency in sewage treatment plants. If excessive carbon source addition is not fully utilized by denitrifying bacteria, the effluent organic pollutants will exceed the standard. Conversely, if the addition is too small to meet the needs of denitrifying bacteria, the effluent TN (total nitrogen) will exceed the standard. To this end, a carbon source dosing device for nitrate nitrogen detection and feedback is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a carbon source dosing device for nitrate nitrogen detection and feedback, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a carbon source dosing device for nitrate nitrogen detection and feedback, comprising a nitrification and denitrification tank, a carbon source box is provided above the nitrification and denitrification tank, a feed port is provided at the upper end of the carbon source box, a current collecting piece is fixedly connected to the bottom of the carbon source box, the carbon source box and the current collecting piece are in a connected state, a discharge port is provided at the bottom of the current collecting piece, a cylinder is fixedly installed on the side wall of the current collecting piece, a telescopic rod of the cylinder slides through the current collecting piece and is located inside the discharge port, a controller is also fixedly installed at the upper end of the nitrification and denitrification tank, a flow meter electrically connected to the controller is also provided on the side of the controller, the flow meter acts on a sewage adding mechanism, and the sewage adding mechanism consists of a water inlet pipe and a delivery pipe.

[0006] As a further preferred embodiment of the present technical solution, a plurality of fixing plates are fixedly connected to both sides of the bottom of the nitrification and denitrification tank, and the bottom of the carbon source box is fixedly connected to the upper end of the nitrification and denitrification tank via a connecting rod.

[0007] As a further preferred embodiment of the present technical solution, the controller acts on the solenoid valve of the cylinder.

[0008] As a further preferred embodiment of the present technical solution, one end of the water inlet pipe is connected to a sewage source, the other end of the water inlet pipe is connected to the flow meter, the other end of the flow meter is connected to a delivery pipe, and the end of the delivery pipe is suspended inside the nitrification and denitrification tank.

[0009] As a further preferred embodiment of the present technical solution, the water inlet pipe is fixedly installed on the upper end of the nitrification and denitrification tank through a plurality of fixing seats, and the delivery pipe is fixedly connected to the nitrification and denitrification tank through another fixing seat.

[0010] As a further preferred embodiment of the present technical solution, the telescopic rod is a rectangular structure, and the width of the telescopic rod is equal to the width of the discharge port.

[0011] As a further preferred embodiment of the present technical solution, a mounting plate is fixedly connected to the rear end of the cylinder, and the mounting plate is fixedly connected to the side wall of the carbon source box.

[0012] The utility model provides a carbon source dosing device for nitrate nitrogen detection and feedback, which has the following beneficial effects:

[0013] The utility model monitors the flow rate of sewage in real time through a flow meter, and controls the solenoid valve of the cylinder through a controller electrically connected to the flow meter. The solenoid valve will make the extension length of the cylinder telescopic rod inversely proportional to the flow rate of sewage, thereby ensuring that the added carbon source and the added sewage are directly proportional, thereby achieving accurate addition of the carbon source. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the nitrification and denitrification tank in the utility model;

[0016] Figure 3 This is a structural diagram of the carbon source box in the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the sewage adding mechanism in the present utility model;

[0018] In the figure: 1. Nitrification and denitrification tank; 2. Carbon source box; 3. Fixed plate; 4. Connecting rod; 5. Feed port; 6. Water inlet pipe; 7. Cylinder; 8. Flow meter; 9. Discharge pipe; 10. Controller; 11. Fixed seat; 12. Current collecting piece; 13. Discharge port; 14. Telescopic rod; 15. Mounting plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, a carbon source dosing device for nitrate nitrogen detection and feedback includes a nitrification and denitrification tank 1, a plurality of fixed plates 3 are fixedly connected to both sides of the bottom of the nitrification and denitrification tank 1, a carbon source box 2 is provided above the nitrification and denitrification tank 1, and a feed port 5 is provided at the upper end of the carbon source box 2. The bottom of the carbon source box 2 is fixedly connected to the upper end of the nitrification and denitrification tank 1 through a connecting rod 4, and a current collecting member 12 is fixedly connected to the bottom of the carbon source box 2. The carbon source box 2 and the current collecting member 12 are in a connected state. A discharge port 13 is provided at the bottom of the collecting member 12, and a cylinder 7 is fixedly installed on the side wall of the collecting member 12. The telescopic rod 14 of the cylinder 7 slides through the collecting member 12 and is located inside the discharge port 13. A controller 10 is also fixedly installed at the upper end of the nitrification and denitrification tank 1. The controller 10 acts on the solenoid valve of the cylinder 7. A flow meter 8 electrically connected to the controller 10 is also provided on the side of the controller 10. The flow meter 8 acts on the sewage adding mechanism, which consists of a water inlet pipe 6 and a delivery pipe 9.

[0021] Among them, the water inlet pipe 6 is fixedly installed at the upper end of the nitrification and denitrification tank 1 through multiple fixing seats 11, one end of the water inlet pipe 6 is connected to the sewage source, and the other end of the water inlet pipe 6 is connected to the flow meter 8, and the other end of the flow meter 8 is connected to the delivery pipe 9, which is fixedly connected to the nitrification and denitrification tank 1 through another fixing seat 11, and the end of the delivery pipe 9 is suspended inside the nitrification and denitrification tank 1.

[0022] The sewage can be introduced into the nitrification and denitrification tank 1 through the water pump at the sewage source through the water inlet pipe 6, the flow meter 8 and the delivery pipe 9. When the sewage passes through the flow meter 8, the flow meter 8 will monitor the flow of the sewage in real time.

[0023] The telescopic rod 14 is a rectangular structure, and the width of the telescopic rod 14 is equal to the width of the discharge port 13 .

[0024] With such arrangement, the telescopic rod 14 can block the discharge port 13 .

[0025] The rear end of the cylinder 7 is fixedly connected to a mounting plate 15 , and the mounting plate 15 is fixedly connected to the side wall of the carbon source box 2 .

[0026] Such an arrangement can improve the structural stability of the cylinder 7 and prevent the cylinder 7 from becoming loose.

[0027] The utility model provides a carbon source dosing device for nitrate nitrogen detection and feedback, and the specific working principle is as follows:

[0028] During use, the sewage can be introduced into the nitrification and denitrification tank 1 through the water pump at the sewage source through the water inlet pipe 6, the flow meter 8 and the delivery pipe 9. When the sewage passes through the flow meter 8, the flow meter 8 will monitor the flow rate of the sewage in real time. At this time, the controller 10 electrically connected to the flow meter 8 will control the solenoid valve of the cylinder 7. The solenoid valve will make the extension length of the telescopic rod 14 of the cylinder 7 inversely proportional to the flow rate of the sewage, that is, the greater the flow rate of the sewage, the shorter the extension length of the telescopic rod 14 of the cylinder 7, and the smaller the position of the telescopic rod 14 of the cylinder 7 blocking the discharge port 13. , the more carbon source is put into the carbon source box 2, conversely, the smaller the flow rate of sewage, the longer the extended length of the telescopic rod 14 of the cylinder 7, and the more the telescopic rod 14 of the cylinder 7 blocks the discharge port 13, and the less carbon source is put into the carbon source box 2. When the flow rate of sewage is zero, the extended length of the telescopic rod 14 of the cylinder 7 is the largest. At this time, the telescopic rod 14 of the cylinder 7 just completely blocks the discharge port 13, preventing the carbon source from entering the nitrification and denitrification tank 1, thereby ensuring that the added carbon source is proportional to the added sewage, thereby achieving accurate addition of the carbon source.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbon source dosing device for nitrate nitrogen detection and feedback, comprising a nitrification and denitrification tank (1), characterized in that: A carbon source box (2) is provided above the nitrification and denitrification tank (1), a feed port (5) is provided at the upper end of the carbon source box (2), a current collecting member (12) is fixedly connected to the bottom of the carbon source box (2), the carbon source box (2) and the current collecting member (12) are in a communicating state, a discharge port (13) is provided at the bottom of the current collecting member (12), a cylinder (7) is fixedly installed on the side wall of the current collecting member (12), a telescopic rod (14) of the cylinder (7) slides through the current collecting member (12) and is located inside the discharge port (13), a controller (10) is also fixedly installed at the upper end of the nitrification and denitrification tank (1), a flow meter (8) electrically connected to the controller (10) is also provided on the side of the controller (10), the flow meter (8) acts on a sewage adding mechanism, and the sewage adding mechanism consists of a water inlet pipe (6) and a delivery pipe (9).

2. A carbon source dosing device for nitrate nitrogen detection and feedback according to claim 1, characterized in that: A plurality of fixing plates (3) are fixedly connected to both sides of the bottom of the nitrification and denitrification tank (1), and the bottom of the carbon source box (2) is fixedly connected to the upper end of the nitrification and denitrification tank (1) via a connecting rod (4).

3. A carbon source dosing device for nitrate nitrogen detection and feedback according to claim 1, characterized in that: The controller (10) acts on the solenoid valve of the cylinder (7).

4. A carbon source dosing device for nitrate nitrogen detection and feedback according to claim 1, characterized in that: One end of the water inlet pipe (6) is connected to a sewage source, the other end of the water inlet pipe (6) is connected to the flow meter (8), the other end of the flow meter (8) is connected to a delivery pipe (9), and the end of the delivery pipe (9) is suspended inside the nitrification and denitrification tank (1).

5. The carbon source dosing device for nitrate nitrogen detection and feedback according to claim 1, characterized in that: The water inlet pipe (6) is fixedly installed on the upper end of the nitrification and denitrification tank (1) through a plurality of fixing seats (11), and the delivery pipe (9) is fixedly connected to the nitrification and denitrification tank (1) through another fixing seat (11).

6. A carbon source dosing device for nitrate nitrogen detection and feedback according to claim 1, characterized in that: The telescopic rod (14) is a rectangular structure, and the width of the telescopic rod (14) is equal to the width of the discharge port (13).

7. The carbon source dosing device for nitrate nitrogen detection and feedback according to claim 1, characterized in that: The rear end of the cylinder (7) is fixedly connected to a mounting plate (15), and the mounting plate (15) is fixedly connected to the side wall of the carbon source box (2).

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