Improved upflow denitrification nitrogen removal reactor

Abstract

The utility model discloses an improved upflow denitrification nitrogen removal reactor, and relates to the technical field of sewage treatment. The device comprises a tank body, a funnel-shaped nitrification bearing layer is fixedly connected in the tank body, a nitrification area filter material I is filled in the tank body above the funnel-shaped nitrification bearing layer, and a funnel-shaped denitrification bearing layer is fixedly connected in the tank body below the funnel-shaped nitrification bearing layer. According to the utility model, the funnel-shaped nitrification bearing layer is arranged, so that a filter material I in a nitrification area can enter the discharge pipe below the funnel-shaped nitrification bearing layer, and the servo motor can drive the rotating rod and the spiral propelling blade to rotate, so that the filter material I in the nitrification area is discharged; a second filter material in a denitrification area can enter a discharge pipe below the tank body, a rotating rod can be driven by a servo motor to rotate together with a spiral propelling blade, the second filter material in the denitrification area is discharged, a worker does not need to enter the tank body to clean a first filter material in the denitrification area and the second filter material in the denitrification area, and the device is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, in particular to an improved upflow denitrification reactor. Background Art

[0002] The traditional DN type filter treatment mechanism with nitrification and denitrification functions is mainly aimed at the situation where the carbon source of the influent is sufficient and the effluent water quality has a high requirement for total nitrogen. Generally, a combined process of a pre-denitrification biological filter and a nitrification aerated biological filter is adopted. In terms of design, the denitrification biological filter and the nitrification aerated biological filter are arranged horizontally, and the basic structure of the pool type is consistent with the aerated biological filter (the difference is that there is no aeration pipeline in the denitrification biological filter). The nitrification liquid is refluxed to the denitrification biological filter through the nitrification aerated biological filter. Under anaerobic conditions, a part of the denitrifying bacteria reacts with organic matter using NO-3 or NO-2 as an oxygen source. In this process, the nitrogen contained in the substance is converted into N2O or N2 and removed from the sewage. After searching, the patent with application number 202021033810.4 discloses an improved upstream denitrification denitrification reactor, including a tank body, which is provided with a nitrification zone, a denitrification zone, and a tank body supporting foundation from top to bottom; a flow gate is provided between the nitrification zone and the denitrification zone, and the flow gate allows water from the denitrification zone to pass one way to the nitrification zone; a system water inlet is provided at the bottom of the denitrification zone, a system water outlet is provided at the top of the nitrification zone, and a nitrification liquid reflux port is provided on the upper part of the side wall of the nitrification zone, and the nitrification liquid reflux port and the system water inlet are connected through a nitrification liquid reflux pipe, and a check valve is provided before the nitrification liquid reflux pipe is connected to the system water inlet.

[0003] However, in actual use, the applicant found that when replacing the filter material in the nitrification zone and the denitrification filter material inside the tank, personnel were required to enter the tank through the manhole for cleaning, which was not convenient enough. In view of this, we proposed an improved upflow denitrification reactor. Utility Model Content

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model discloses an improved upstream denitrification denitrification reactor, comprising a tank body, wherein a funnel-shaped nitrification supporting layer is fixedly connected to the interior of the tank body, a nitrification zone filter material 1 is filled in the tank body above the funnel-shaped nitrification supporting layer, a funnel-shaped denitrification supporting layer is fixedly connected to the tank body below the funnel-shaped nitrification supporting layer, a denitrification zone filter material 2 is filled in the tank body above the funnel-shaped denitrification supporting layer, a discharge pipe is fixedly penetrated and inserted in both the funnel-shaped nitrification supporting layer and the tank body below the funnel-shaped denitrification supporting layer, a servo motor is fixedly mounted on the outer wall of the tank body on one side of the discharge pipe, a rotating end of the servo motor is fixedly connected to a rotating rod, the rotating rod extends into the discharge pipe, and a spiral propulsion blade is fixedly sleeved on the rotating rod, and the bottom of the funnel-shaped nitrification supporting layer and the bottom of the funnel-shaped denitrification supporting layer are respectively connected to the interior of the discharge pipe below them.

[0006] Preferably, an annular high-pressure nozzle is fixedly connected to the inner wall of the tank body above the nitrification zone filter material 1 and the denitrification zone filter material 2, and the water inlet branch of the annular high-pressure nozzle extends to the outside of the tank body.

[0007] Preferably, the water inlet end of the annular high-pressure nozzle is connected to an external high-pressure water supply device through a connecting pipe, and nozzles are evenly and fixedly arranged at the bottom of the annular high-pressure nozzle.

[0008] Preferably, a discharge branch pipe is fixedly provided at the bottom of one end of the discharge pipe away from the servo motor, and a sealing cover is screwed on the lower end of the discharge branch pipe.

[0009] Preferably, the servo motor is electrically connected to an external control switch via a wire, and an inspection door is fixedly provided on the outer wall of the tank body.

[0010] Preferably, a first filter head for the nitrification zone is disposed at the bottom of the funnel-shaped nitrification supporting layer, and a second filter head for the denitrification zone is disposed at the bottom of the funnel-shaped denitrification supporting layer.

[0011] The utility model has the following beneficial effects:

[0012] The utility model discloses an improved upstream denitrification denitrification reactor. Through the funnel-shaped nitrification supporting layer, filter material 1 in the nitrification zone can be made to enter the discharge pipe below it, and can be driven by a servo motor to rotate the rotating rod together with the spiral propulsion blade to discharge the filter material 1 in the nitrification zone. Through the funnel-shaped denitrification supporting layer, filter material 2 in the denitrification zone can be made to enter the discharge pipe below it, and can be driven by a servo motor to rotate the rotating rod together with the spiral propulsion blade to discharge the filter material 2 in the denitrification zone. There is no need for personnel to enter the interior of the tank body to clean the filter material 1 in the nitrification zone and the filter material 2 in the denitrification zone, which is more convenient. By conveying high-pressure water to the interior of the annular high-pressure nozzle, it can be sprayed out through the nozzle to wash the filter material attached to the inner wall of the tank body, thereby further improving the cleaning effect of the filter material. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic diagram of the external structure of an improved upflow denitrification reactor of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of an improved upflow denitrification reactor of the utility model;

[0016] Figure 3 This utility model is an improved upflow denitrification reactor Figure 2 A magnified view of the structure in the middle.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1. Tank body; 2. Servo motor; 3. Inspection door; 4. Discharge pipe; 41. Discharge branch pipe; 42. Sealing cover; 5. Filter material one in nitrification zone; 6. Funnel-shaped nitrification support layer; 61. Filter head one in nitrification zone; 7. Annular high-pressure nozzle; 71. Water inlet branch pipe; 72. Nozzle; 8. Filter material two in denitrification zone; 9. Funnel-shaped denitrification support layer; 91. Filter head two in denitrification zone; 10. Rotating rod; 11. Spiral propeller. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0020] See also Figure 1-3 As shown, the utility model provides a technical solution:

[0021] Embodiment 1: An improved upflow denitrification denitrification reactor, comprising a tank body 1, a funnel-shaped nitrification support layer 6 is fixedly connected to the inside of the tank body 1, a nitrification zone filter head 61 is arranged at the bottom of the funnel-shaped nitrification support layer 6, the tank body 1 above the funnel-shaped nitrification support layer 6 is filled with a nitrification zone filter material 5, a funnel-shaped denitrification support layer 9 is fixedly connected to the tank body 1 below the funnel-shaped nitrification support layer 6, a denitrification zone filter head 91 is arranged at the bottom of the funnel-shaped denitrification support layer 9, and the funnel-shaped denitrification support layer 9 is provided with a denitrification zone filter head 91. The tank body 1 above the bucket-shaped denitrification support layer 9 is filled with a denitrification zone filter material 8, and a discharge pipe 4 is fixedly installed in the tank body 1 below the funnel-shaped nitrification support layer 6 and the funnel-shaped denitrification support layer 9. A servo motor 2 is fixedly installed on the outer wall of the tank body 1 on one side of the discharge pipe 4. The servo motor 2 is electrically connected to an external control switch through a wire. The rotating end of the servo motor 2 is fixedly connected to a rotating rod 10, which extends into the discharge pipe 4, and a spiral push rod 10 is sleeved and fixed. The inlet blade 11 drives the spiral propulsion blade 11 to rotate through the rotating rod 10, so that the filter material 1 5 in the nitrification zone and the filter material 2 8 in the denitrification zone can be discharged through the discharge pipe 4, and there is no need for personnel to manually clean the filter material 1 5 in the nitrification zone and the filter material 2 8 in the denitrification zone from the inside of the tank body 1, which is more convenient. The bottom of the discharge pipe 4 away from the servo motor 2 is fixedly provided with a discharge branch pipe 41, and the lower end of the discharge branch pipe 41 is threadedly connected with a sealing cover 42, and the bottom of the funnel-shaped nitrification support layer 6 and the funnel-shaped denitrification support layer 6 are connected to the bottom of the funnel-shaped nitrification support layer 6. The bottom of the nitrification support layer 9 is respectively connected to the inside of the discharge pipe 4 below it, so that the nitrification zone filter material 1 5 can enter the discharge pipe 4 along the funnel-shaped nitrification support layer 6, and the denitrification zone filter material 2 8 can enter the discharge pipe 4 along the funnel-shaped denitrification support layer 9. An inspection door 3 is fixedly provided on the outer wall of the tank body 1, and an inspection door 3 is provided above the two discharge pipes 4. The nitrification liquid inlet and outlet pipes and other structures provided on the tank body 1 can refer to the application number 202021033810.The structure disclosed in the patent of 4 will not be described in detail here. When the tank body 1 is not maintained and cleaned, the inspection door 3 is in a sealed state. Through the inspection door 3, personnel can easily enter the interior of the tank body 1 to inspect and clean the nitrification zone filter material 5, and can also place the nitrification zone filter material 5 on the top of the funnel-shaped nitrification support layer 6, and place the denitrification zone filter material 2 8 on the top of the funnel-shaped denitrification support layer 9. When it is necessary to replace the nitrification zone filter material 1 5 and the denitrification zone filter material 2 8 inside the tank body 1, the sealing covers 42 on the two discharge pipes 4 can be unscrewed first, and the two servo motors 2 can be driven to rotate. The rotation of the servo motor 2 can drive the rotating rod 10 together with the spiral propulsion blade 11 to rotate. At this time, the nitrification zone filter material 1 5 can be rotated along the funnel-shaped nitrification support layer 6. The denitrification support layer 6 enters the discharge pipe 4 below it, and can be pushed to the discharge branch 41 by the spiral propulsion blade 11 for output. The denitrification zone filter material 2 8 can enter the discharge pipe 4 below it along the funnel-shaped denitrification support layer 9, and can be pushed to the discharge branch 41 by the spiral propulsion blade 11 for output. When there is no filter material discharged from the discharge branch 41, the two inspection doors 3 can be opened at this time, and personnel can enter the interior of the tank body 1 through the inspection door 3 to maintain and clean the funnel-shaped nitrification support layer 6 and the funnel-shaped denitrification support layer 9, and can place new nitrification zone filter material 1 5 on the top of the funnel-shaped nitrification support layer 6 through the inspection door 3, and place new denitrification zone filter material 2 8 on the top of the funnel-shaped denitrification support layer 9.

[0022] Embodiment 2: The difference between this embodiment and embodiment 1 lies in that an annular high-pressure nozzle 7 is fixedly connected to the inner wall of the tank body 1 above the filter material 1 5 in the nitrification zone and the filter material 2 8 in the denitrification zone, and a water inlet branch pipe 71 of the annular high-pressure nozzle 7 extends to the outside of the tank body 1, and a water inlet end of the annular high-pressure nozzle 7 is connected to an external high-pressure water supply device through a connecting pipe, and a nozzle 72 is evenly and fixedly arranged at the bottom of the annular high-pressure nozzle 7, and the high-pressure water flow sprayed by the nozzle 72 can flush the filter material attached to the inner wall of the tank body 1, thereby further improving the cleaning effect of the filter material, and in the process of discharging the filter material 1 5 in the nitrification zone and the filter material 2 8 in the denitrification zone, high-pressure water can be transported to the inside of the annular high-pressure nozzle 7 through the external high-pressure water supply device, and the high-pressure water flow can be sprayed to the inner wall of the tank body 1 through the water inlet branch pipe 71, and the residual filter material attached to the inner wall of the tank body 1 is flushed, so that the residual filter material can smoothly enter the discharge pipe 4 and be discharged through the discharge branch pipe 41.

[0023] Working principle: During use, when it is necessary to replace the filter material 1 5 of the nitrification zone and the filter material 2 8 of the denitrification zone inside the tank body 1, the sealing covers 42 on the two discharge pipes 4 can be unscrewed first, and the two servo motors 2 can be driven to rotate. The rotation of the servo motor 2 can drive the rotating rod 10 together with the spiral propulsion blade 11 to rotate. At this time, the filter material 1 5 of the nitrification zone can enter the discharge pipe 4 below it along the funnel-shaped nitrification supporting layer 6, and can be pushed to the discharge branch 41 for output through the spiral propulsion blade 11. The filter material 2 8 of the denitrification zone can enter the discharge pipe 4 below it along the funnel-shaped denitrification supporting layer 9, and can be pushed to the discharge branch 41 for output through the spiral propulsion blade 11. When there is no filter material discharged from the discharge branch 41, the two inspection doors 3 can be opened. Open, personnel can enter the interior of the tank body 1 through the inspection door 3, maintain and clean the funnel-shaped nitrification supporting layer 6 and the funnel-shaped denitrification supporting layer 9, and can place new nitrification zone filter material 1 5 on top of the funnel-shaped nitrification supporting layer 6, and place new denitrification zone filter material 2 8 on top of the funnel-shaped denitrification supporting layer 9 from the inspection door 3. In the process of discharging the nitrification zone filter material 1 5 and the denitrification zone filter material 2 8, high-pressure water can be delivered to the interior of the annular high-pressure nozzle 7 through an external high-pressure water supply equipment, and the high-pressure water flow can be sprayed onto the inner wall of the tank body 1 through the water inlet branch pipe 71 to flush the residual filter material attached to the inner wall of the tank body 1, so that the residual filter material can smoothly enter the discharge pipe 4 and be discharged through the discharge branch pipe 41.

[0024] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments and any equivalent replacement of some of the technical features therein are within the protection scope of the present invention.

Claims

1. An improved upflow denitrification reactor, comprising a tank (1), characterized in that: A funnel-shaped nitrification support layer (6) is fixedly connected to the interior of the tank body (1); a nitrification zone filter material (5) is filled in the tank body (1) above the funnel-shaped nitrification support layer (6); a funnel-shaped denitrification support layer (9) is fixedly connected to the tank body (1) below the funnel-shaped nitrification support layer (6); a denitrification zone filter material (8) is filled in the tank body (1) above the funnel-shaped denitrification support layer (9); and the funnel-shaped nitrification support layer (6) and the tank body below the funnel-shaped denitrification support layer (9) are connected to each other. (1) is fixedly provided with a discharge pipe (4), a servo motor (2) is fixedly installed on the outer wall of the tank body (1) on one side of the discharge pipe (4), a rotating end of the servo motor (2) is fixedly connected with a rotating rod (10), the rotating rod (10) extends into the discharge pipe (4), and a spiral propulsion blade (11) is sleeved and fixed on the rotating rod (10), the bottom of the funnel-shaped nitrification supporting layer (6) and the bottom of the funnel-shaped denitrification supporting layer (9) are respectively connected to the inside of the discharge pipe (4) below them.

2. The improved upflow denitrification reactor according to claim 1, characterized in that: An annular high-pressure nozzle (7) is fixedly connected to the inner wall of the tank body (1) above the nitrification zone filter material 1 (5) and the denitrification zone filter material 2 (8), and the water inlet branch pipe (71) of the annular high-pressure nozzle (7) extends to the outside of the tank body (1).

3. The improved upflow denitrification reactor according to claim 2, characterized in that: The water inlet end of the annular high-pressure nozzle (7) is connected to an external high-pressure water supply device via a connecting pipe, and nozzles (72) are evenly and fixedly arranged at the bottom of the annular high-pressure nozzle (7).

4. The improved upflow denitrification reactor according to claim 1, characterized in that: A discharge branch pipe (41) is fixedly arranged at the bottom of one end of the discharge pipe (4) away from the servo motor (2), and a sealing cover (42) is screwed on the lower end of the discharge branch pipe (41).

5. The improved upflow denitrification reactor according to claim 1, characterized in that: The servo motor (2) is electrically connected to an external control switch via a wire, and an inspection door (3) is fixedly provided on the outer wall of the tank body (1).

6. The improved upflow denitrification reactor according to claim 1, characterized in that: A nitrification zone filter head 1 (61) is arranged at the bottom of the funnel-shaped nitrification support layer (6), and a denitrification zone filter head 2 (91) is arranged at the bottom of the funnel-shaped denitrification support layer (9).

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