Short-range denitrification reactor

Abstract

The utility model belongs to the technical field of nitrogen-containing sewage treatment, and particularly relates to a short-range denitrification reactor which comprises a reaction tank, a cooling and stirring assembly is mounted in the reaction tank and comprises a coiled pipe, the two ends of the coiled pipe penetrate through the reaction tank and are rotationally connected with the reaction tank, and the cooling and stirring assembly is mounted in the reaction tank. The two ends of the coiled pipe are fixedly connected with rotating joints respectively; according to the sewage treatment device, the first driver drives the coiled pipe to rotate, so that stirring liquid is stirred, fusion of a medicament and sewage is accelerated, reaction is promoted, cold water in the water storage tank is guided into the coiled pipe by the circulating pump to form circulating flow, and then heat exchange with the sewage is performed when the coiled pipe rotates; when the coiled pipe rotates, the coiled pipe can be in full contact with the sewage in the reaction tank, and compared with the prior art, the cooling effect of the sewage in the reaction tank is integrally improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen-containing sewage treatment, in particular to a short-range denitrification reactor. Background Art

[0002] Nitrogen pollution refers to environmental pollution caused by nitrogen compounds. The nitrogen compounds that cause air pollution are mainly nitrogen oxides. Its anthropogenic sources are mainly the waste gases emitted by burning fossil fuels, producing nitric acid, nitrogen fertilizers, gunpowder, etc. Nitrogen oxides are the starting reactants of photochemical smog reactions. They and nitrous oxide catalyze the decomposition of ozone in the stratosphere, so they are both substances that destroy the ozone layer. Nitrogen in water bodies mainly comes from the metabolism and corruption of organisms, the loss of nitrogen fertilizers, and the discharge of industrial wastewater and domestic sewage.

[0003] The existing Chinese patent with the announcement number CN215403356U discloses a continuous short-range nitrification and denitrification reaction device, which belongs to the technical field of nitrogen-containing wastewater treatment. The continuous short-range nitrification and denitrification reaction device includes a reaction tank, a cooling mechanism and a medicine filling mechanism. The reaction tank includes a tank body and a support rod, the agitator is installed on the tank body, the cooling mechanism includes a shell, a partition, a water pump and a cold air blower, the shell is fixed on the outer surface of the tank body, the partition is fixed inside the shell, a cold water cavity and a heat dissipation cavity are formed between the partition and the shell, an exhaust hole is opened at the bottom of the heat dissipation cavity, a heat-conducting column is embedded inside the partition, the end of the second connecting pipe is connected to a cold air pipe, and the medicine filling mechanism is installed on the surface of the tank body.

[0004] With regard to the above-mentioned and existing related technologies, the following defects often exist: the device cools down the reaction tank by cold water in the cold water chamber, and the cold water chamber is installed on the outside of the reaction tank, and the cooling effect on the central area of ​​the reaction tank is limited, and the reaction tank cannot be cooled as a whole, and the use effect is not good, which needs to be improved; therefore, a short-range denitrification reactor is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes a short-range denitrification reactor.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a short-range denitrification reactor described in the utility model includes a reaction tank, a cooling and stirring component is installed inside the reaction tank, the cooling and stirring component includes a serpentine tube, both ends of the serpentine tube penetrate the reaction tank and are rotatably connected to the reaction tank, both ends of the serpentine tube are respectively fixedly connected with a rotary joint, the upper side wall of the reaction tank is fixedly connected with a driver 1, the driving end of the driver 1 is connected to the serpentine tube through a belt transmission, a water storage tank with a top opening is installed on one side of the reaction tank, and conduits are respectively installed above and below the water storage tank, and the other end of the conduit is fixedly connected to the rotary joint, a circulating pump is installed on the conduit below, and the A heat dissipation component is installed inside the water tank, and the heat dissipation component includes a mounting seat, and the mounting seat is fixedly installed at the top opening of the water tank. A driver 2 is fixedly connected to the center of the mounting seat. Sewage and alkaline reagents are introduced through the liquid inlet end, and the driver 1 is operated to drive the serpentine tube to rotate, so that the stirring liquid is stirred, and the fusion of the reagent and the sewage is accelerated to promote the reaction. During the reaction process, when the temperature is higher than a certain value, the circulation pump is operated to introduce the cold water inside the water tank into the inside of the serpentine tube to form a circulating flow, and then heat exchange is carried out with the sewage when the serpentine tube rotates. The serpentine tube can fully contact the sewage inside the reaction tank when it rotates. Compared with the existing technology, the cooling effect of the sewage inside the reaction tank is improved as a whole.

[0007] Preferably, a plurality of liquid inlet ends are installed on the top of the reaction tank, a liquid discharge end is installed on the bottom of the reaction tank, and a valve is installed on the liquid discharge end.

[0008] Preferably, a liquid exchange end is installed at the bottom of the water storage tank, and a valve is installed on the liquid exchange end, and an adding end is installed on the top of the water storage tank. The adding end is connected to a cold water input pump through a pipeline, and cold water is added to the water storage tank through the cold water input pump. When the temperature of the cold water rises to a certain period of time after circulating, the liquid exchange end is opened to discharge the water with higher temperature, and then cooling water can be added again.

[0009] Preferably, a mounting frame is fixedly connected to the surface of the serpentine tube, and the mounting frame and the serpentine tube are distributed in an X shape.

[0010] Preferably, a plurality of stirring blades are fixedly connected on both sides of the mounting frame from top to bottom. The cooling water inside the reaction tank flows back to the inside of the water storage tank through the conduit after heat exchange. When the stirring blades rotate, the outflowing cooling water can be sheared, causing the cooling water to splash, thereby improving the heat dissipation effect.

[0011] Preferably, blades are fixedly connected to the driving rod of the second driver, and the blades are driven to rotate by the second driver to generate airflow, which can cool the cooling water inside the water tank, improve the circulation time and utilization efficiency of the cooling water, and reduce the waste of water resources.

[0012] Preferably, the bottom end of the driving rod of the second driver is fixedly connected to a reciprocating screw, the surface of the reciprocating screw is threadedly connected to a guide plate, and the guide plate is installed inside the water tank.

[0013] Preferably, the surface of the guide plate is slidably connected to a plurality of guide support rods, and the bottom ends of the guide support rods are fixedly connected to the bottom of the water tank. When the driver 2 is in operation, it drives the reciprocating screw to rotate, so that the guide plate pushes the cooling water inside the water tank to roll up and down, thereby improving the cooling effect of the cooling water.

[0014] Preferably, a temperature sensor is fixedly connected to the inside of the water storage tank and the reaction tank, and the temperature of the liquid inside the water storage tank and the reaction tank is detected by the temperature sensor.

[0015] The utility model is beneficial in that:

[0016] 1. The utility model drives the serpentine tube to rotate through a driver, so that the stirring liquid is stirred, the fusion of the reagent and the sewage is accelerated to promote the reaction, and the circulating pump introduces the cold water inside the water storage tank into the inside of the serpentine tube to form a circulating flow, and then heat is exchanged with the sewage when the serpentine tube rotates. When the serpentine tube rotates, it can fully contact the sewage inside the reaction tank. Compared with the existing technology, the overall cooling effect of the sewage inside the reaction tank is improved.

[0017] 2. The utility model generates airflow by driving the blades to rotate through driver 2, which can cool the cooling water inside the water storage tank, improve the circulation time and utilization efficiency of the cooling water, and reduce the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be 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 paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the reaction tank and water storage tank of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the cooling and stirring component of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the heat dissipation component of the utility model;

[0023] Figure 5For this utility model Figure 4 Schematic diagram of the A structure.

[0024] In the figure: 1. reaction tank; 2. cooling and stirring assembly; 21. serpentine tube; 22. rotary joint; 23. mounting frame; 24. stirring blade; 3. driver 1; 4. water storage tank; 5. conduit; 6. circulation pump; 7. heat dissipation assembly; 71. mounting seat; 72. driver 2; 73. blade; 74. reciprocating screw; 75. guide plate; 76. guide support rod; 8. liquid inlet end; 9. liquid discharge end; 10. liquid exchange end; 11. addition end. DETAILED DESCRIPTION

[0025] 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 in 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.

[0026] See also Figure 1-5 As shown, a short-range denitrification reactor comprises a reaction tank 1, a cooling and stirring assembly 2 is installed inside the reaction tank 1, the cooling and stirring assembly 2 comprises a serpentine tube 21, both ends of the serpentine tube 21 penetrate the reaction tank 1 and are rotatably connected to the reaction tank 1, both ends of the serpentine tube 21 are respectively fixedly connected with a rotary joint 22, a driver 3 is fixedly connected to the upper side wall of the reaction tank 1, and the driving end of the driver 3 is transmission-connected to the serpentine tube 21 through a belt, a water storage tank 4 with a top opening is installed on one side of the reaction tank 1, a conduit 5 is respectively installed above and below the water storage tank 4, and the other end of the conduit 5 is fixedly connected to the rotary joint 22, a circulating pump 6 is installed on the lower conduit 5, a heat dissipation assembly 7 is installed inside the water storage tank 4, and the heat dissipation assembly 7 includes a mounting base 71, which is fixedly mounted at the top opening of the water storage tank 4. A driver 2 72 is fixedly connected to the center of the mounting base 71. Sewage and alkaline reagents are introduced through the liquid inlet end 8. The driver 1 3 is operated to drive the serpentine tube 21 to rotate, so that the stirring liquid is stirred, the fusion of the reagent and the sewage is accelerated to promote the reaction. During the reaction process, when the temperature is higher than a certain value, the circulation pump 6 is operated to introduce the cold water inside the water storage tank 4 into the inside of the serpentine tube 21 to form a circulating flow, and then the serpentine tube 21 is heat-exchanged with the sewage when it rotates. The serpentine tube 21 can fully contact with the sewage inside the reaction tank 1 when it rotates. Compared with the prior art, the cooling effect of the sewage inside the reaction tank 1 is improved as a whole.

[0027] A plurality of liquid inlet ports 8 are installed on the top of the reaction tank 1 , a liquid discharge port 9 is installed on the bottom of the reaction tank 1 , and a valve is installed on the liquid discharge port 9 .

[0028] A liquid exchange end 10 is installed at the bottom of the water storage tank 4, and a valve is installed on the liquid exchange end 10. An adding end 11 is installed on the top of the water storage tank 4. The adding end 11 is connected to a cold water input pump through a pipeline. Cold water is added to the water storage tank 4 through the cold water input pump. When the temperature of the cold water rises to a certain period of time after circulating, the liquid exchange end 10 is opened to discharge the water with a higher temperature, and then cooling water can be added again.

[0029] A mounting frame 23 is fixedly connected to the surface of the serpentine tube 21 , and the mounting frame 23 and the serpentine tube 21 are distributed in an X shape.

[0030] A plurality of stirring blades 24 are fixedly connected to both sides of the mounting frame 23 from top to bottom. The cooling water inside the reaction tank 1 flows back to the inside of the water storage tank 4 through the conduit 5 after heat exchange. When the stirring blades 24 rotate, the outflowing cooling water can be sheared, so that the cooling water splashes, thereby improving the heat dissipation effect of the cooling water.

[0031] The driving rod of the second driver 72 is fixedly connected with a blade 73. The second driver 72 drives the blade 73 to rotate to generate airflow, which can cool the cooling water inside the water storage tank 4, improve the circulation time and utilization efficiency of the cooling water, and reduce the waste of water resources.

[0032] The bottom end of the driving rod of the second driver 72 is fixedly connected to a reciprocating screw 74 , the surface of the reciprocating screw 74 is threadedly connected to a guide plate 75 , and the guide plate 75 is installed inside the water storage tank 4 .

[0033] The surface of the guide plate 75 is slidably connected to a plurality of guide support rods 76, and the bottom ends of the guide support rods 76 are fixedly connected to the bottom of the water tank 4. When the driver 2 72 is running, it drives the reciprocating screw 74 to rotate, so that the guide plate 75 pushes the cooling water inside the water tank 4 to roll up and down, thereby improving the cooling effect of the cooling water.

[0034] Temperature sensors are fixedly connected to the inside of the water storage tank 4 and the reaction tank 1 , and the temperature of the liquid inside the water storage tank 4 and the reaction tank 1 is detected by the temperature sensors.

[0035] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0036] Working principle: sewage and alkaline reagent are introduced through the liquid inlet end 8, and the driver 3 is operated to drive the serpentine tube 21 to rotate, so that the stirring liquid is stirred, the fusion of the reagent and sewage is accelerated to promote the reaction, and when the temperature is higher than a certain value during the reaction, the circulation pump 6 is operated to introduce the cold water inside the water storage tank 4 into the inside of the serpentine tube 21 to form a circulation flow, and then heat exchange is carried out with the sewage when the serpentine tube 21 rotates, and the serpentine tube 21 can fully contact with the sewage inside the reaction tank 1 when it rotates. Compared with the existing technology, the cooling effect of the sewage inside the reaction tank 1 is improved as a whole;

[0037] By driving the blades 73 to rotate through the driver 2 72 to generate airflow, the cooling water inside the water tank 4 can be cooled, the circulation time and utilization efficiency of the cooling water can be improved, and the waste of water resources can be reduced. The driver 2 72 simultaneously drives the reciprocating screw 74 to rotate, so that the guide plate 75 pushes the cooling water inside the water tank 4 to roll up and down, thereby improving the cooling effect on the cooling water.

[0038] 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.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A short-range denitrification reactor, comprising a reaction tank (1), characterized in that: A cooling and stirring assembly (2) is installed inside the reaction tank (1), and the cooling and stirring assembly (2) comprises a serpentine tube (21), both ends of the serpentine tube (21) pass through the reaction tank (1) and are rotatably connected to the reaction tank (1), and both ends of the serpentine tube (21) are respectively fixedly connected to a rotating joint (22), and a driver 1 (3) is fixedly connected to the upper side wall of the reaction tank (1), and the driving end of the driver 1 (3) is transmission-connected to the serpentine tube (21) via a belt, and a drive shaft (22) is installed on one side of the reaction tank (1). A water storage tank (4) having a top opening, wherein conduits (5) are respectively installed at the upper and lower parts of the water storage tank (4), and the other end of the conduit (5) is fixedly connected to a rotary joint (22), and a circulation pump (6) is installed on the lower conduit (5), and a heat dissipation component (7) is installed inside the water storage tank (4), and the heat dissipation component (7) comprises a mounting seat (71), and the mounting seat (71) is fixedly installed at the top opening of the water storage tank (4), and a second driver (72) is fixedly connected at the center of the mounting seat (71).

2. The short-cut denitrification reactor according to claim 1, characterized in that: A plurality of liquid inlet ends (8) are installed above the reaction tank (1), a liquid discharge end (9) is installed at the bottom of the reaction tank (1), and a valve is installed on the liquid discharge end (9).

3. The short-cut denitrification reactor according to claim 1, characterized in that: A liquid exchange end (10) is installed at the bottom of the water storage tank (4), and a valve is installed on the liquid exchange end (10). A feed end (11) is installed at the top of the water storage tank (4), and the feed end (11) is connected to a cold water input pump via a pipeline.

4. The short-cut denitrification reactor according to claim 1, characterized in that: A mounting frame (23) is fixedly connected to the surface of the serpentine tube (21), and the mounting frame (23) and the serpentine tube (21) are arranged in an X shape.

5. The short-cut denitrification reactor according to claim 4, characterized in that: A plurality of stirring blades (24) are fixedly connected to both sides of the mounting frame (23) from top to bottom.

6. The short-cut denitrification reactor according to claim 1, characterized in that: A blade (73) is fixedly connected to the driving rod of the second driver (72).

7. The short-cut denitrification reactor according to claim 1, characterized in that: The bottom end of the driving rod of the second driver (72) is fixedly connected to a reciprocating screw (74), the surface of the reciprocating screw (74) is threadedly connected to a guide plate (75), and the guide plate (75) is installed inside the water storage tank (4).

8. The short-cut denitrification reactor according to claim 7, characterized in that: A plurality of guide support rods (76) are slidably connected to the surface of the guide plate (75), and the bottom ends of the guide support rods (76) are fixedly connected to the bottom of the water storage tank (4).

9. The short-cut denitrification reactor according to claim 1, characterized in that: Temperature sensors are fixedly connected inside the water storage tank (4) and the reaction tank (1).

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