Denitrification nitrogen removal sewage treatment equipment

Abstract

The utility model discloses denitrification nitrogen removal sewage treatment equipment, which relates to the technical field of sewage treatment equipment, and comprises a sewage treatment structure, the sewage treatment structure comprises a sewage treatment box body, one side of the sewage treatment box body is connected with an air exhaust component, and the other side of the sewage treatment box body is provided with an exhaust pipe; an inverted-U-shaped frame is installed in the middle of the upper surface of the sewage treatment box body, a power assembly is installed in the middle of the upper surface of the inverted-U-shaped frame, the two ends of the power assembly are connected with stirring assemblies extending into an inner cavity of the sewage treatment box body, and multiple sets of cushion blocks are installed on the outer edge of the lower surface of the sewage treatment box body; the heat preservation structure comprises a heat preservation frame, and the heat preservation frame is fixed to the bottom walls of the multiple sets of cushion blocks and arranged outside the sewage treatment box body. When the device is used in a low-temperature environment in winter, the electric heating pipe is started and electrified, so that clear water and sewage in the inner cavity of the heat preservation frame can be heated, and the activity of denitrifying bacteria can be conveniently guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sewage treatment equipment, especially to a denitrification and nitrogen removal sewage treatment equipment. BACKGROUND

[0002] The denitrification and nitrogen removal process mainly relies on denitrifying bacteria to reduce nitrate nitrogen to nitrogen gas under anoxic or anaerobic conditions using organic matter as an electron donor. The Chinese utility model patent file with publication number CN221940245U discloses a denitrification and nitrogen removal sewage treatment equipment, which comprises a denitrification anaerobic tank, a slurry suction pipe and a pump body. A reaction cavity is arranged in the denitrification anaerobic tank. A water inlet pipe is used to communicate with a nitrification reaction tank. One end of the slurry suction pipe is arranged at the bottom of the denitrification anaerobic tank. The other end of the slurry suction pipe is connected to the inlet end of the pump body. The outlet end of the pump body is arranged at the top of the denitrification anaerobic tank. The organic matter and sludge mixture at the bottom of the denitrification anaerobic tank are sucked into the pump body through the slurry suction pipe, and are re-added into the sewage from the top of the denitrification anaerobic tank, so that the residual organic matter in the sludge can be mixed with the sewage again for utilization.

[0003] The denitrification and nitrogen removal efficiency of the above-mentioned denitrification and nitrogen removal sewage treatment equipment is low due to the reduced activity of denitrifying bacteria under low-temperature conditions in winter. Therefore, the present utility model provides a denitrification and nitrogen removal sewage treatment equipment to solve the above-mentioned problems. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the application name to avoid obscuring the purpose of this section, the abstract of the specification and the application name, and such simplifications or omissions cannot be used to limit the scope of the present utility model.

[0005] Therefore, the present utility model aims to provide a denitrification and nitrogen removal sewage treatment equipment, which can solve the problem of low denitrification and nitrogen removal efficiency due to the reduced activity of denitrifying bacteria under low-temperature conditions in winter.

[0006] The present utility model provides a denitrification and nitrogen removal sewage treatment equipment, which adopts the following technical solutions:

[0007] A denitrification and nitrogen removal sewage treatment equipment, comprising a sewage treatment structure, which comprises a sewage treatment box body. An air exhaust assembly is connected to one side of the sewage treatment box body. An exhaust pipe is installed on the other side of the sewage treatment box body. A reverse U-shaped frame is installed at the middle position of the upper surface of the sewage treatment box body. A power assembly is installed at the middle position of the upper surface of the reverse U-shaped frame. Stirring assemblies are connected to the power assembly at both ends and extend into the inner cavity of the sewage treatment box body. A plurality of sets of cushion blocks are installed at the outer edge of the lower surface of the sewage treatment box body.

[0008] The heat preservation structure comprises a heat preservation frame fixed on the bottom wall of a plurality of sets of cushion blocks, the heat preservation frame is arranged outside the sewage treatment tank body, a plurality of sets of I-shaped cushion legs are installed at the outer edge of the lower surface of the heat preservation frame, a plurality of sets of electric heating pipes are installed on the outer wall of one side of the heat preservation frame, and a water temperature uniform distribution assembly is installed on the outer wall of the other side of the heat preservation frame.

[0009] By adopting the above technical scheme, the sewage treatment tank body is injected with a proper amount of sewage, denitrifying bacteria and organic matter such as methanol or ethanol, nitrogen is injected into the inner cavity of the sewage treatment tank body by using the air exhaust assembly, and the air in the inner cavity of the sewage treatment tank body is discharged through the exhaust pipe. When the denitrifying and denitrifying sewage treatment equipment is used in a winter environment with low temperature, when the temperature value is low, the PLC controller automatically controls the electric heating pipe to start power supply, so that the clean water in the inner cavity of the heat preservation frame can be heated, and the water body in the inner cavity of the sewage treatment tank body is heated by using the water temperature of the clean water in the inner cavity of the heat preservation frame, so that the activity of the denitrifying bacteria is conveniently ensured, and the efficiency of denitrification is conveniently ensured.

[0010] Optionally, the air exhaust assembly comprises a liquid nitrogen storage tank, the liquid nitrogen storage tank is arranged at the outer side of the sewage treatment tank body, and the end of the liquid nitrogen storage tank is connected with an air exhaust pipe extending to the upper end of the inner cavity of the sewage treatment tank body.

[0011] Optionally, a one-way valve is installed outside the exhaust pipe.

[0012] By adopting the above technical scheme, opening the control valve on the air exhaust pipe can make the liquid nitrogen in the inner cavity of the liquid nitrogen storage tank gasify and be injected into the inner cavity of the sewage treatment tank body through the air exhaust pipe, and under the action of the one-way valve, the air in the inner cavity of the sewage treatment tank body can be discharged through the exhaust pipe, so that the inner cavity of the sewage treatment tank body is in an anaerobic or anoxic environment for denitrification and denitrification treatment.

[0013] Optionally, the power assembly comprises a speed regulating motor, the speed regulating motor is fixed at the upper surface of the inverted U-shaped frame, a power shaft penetrating the top wall of the inverted U-shaped frame is installed at the output end of the speed regulating motor, and a second transverse gear is fixedly installed at the lower end position of the outer wall of the power shaft.

[0014] Optionally, the stirring assembly comprises a stirring frame, the stirring frame is rotatably connected at the upper surface of the inner cavity of the inverted U-shaped frame through a bearing, the lower end of the stirring frame extends to the inner cavity of the sewage treatment tank body, and a first transverse gear meshing with the second transverse gear is fixed at the upper end of the outer wall of the stirring frame.

[0015] By adopting the technical scheme, the speed-regulating motor is started to drive the power shaft to rotate, so as to drive the second transverse gear to rotate synchronously, the first transverse gear is reversely rotated under the action of the second transverse gear, so as to drive the stirring frame to rotate synchronously, and then the sewage, denitrifying bacteria and organic matters such as methanol or ethanol can be fully contacted, and the efficiency of denitrification and nitrogen removal is improved.

[0016] Optionally, the water temperature uniform distribution assembly comprises a pad frame fixedly welded at the bottom end of the outer wall of the heat preservation frame, and a water pump is installed on the pad frame, and water pipes extending into the inner cavity of the heat preservation frame are installed at the output end and the input end of the water pump.

[0017] Optionally, a water temperature detection sensor is fixedly embedded at the lower end of the outer wall of the heat preservation frame, and a PLC controller is installed at one end of the upper surface of the inverted U-shaped frame and electrically connected with the water temperature detection sensor and the electric heating pipe.

[0018] By adopting the technical scheme, the water temperature interval is set by the PLC controller, the water temperature detection sensor can automatically detect the temperature value of the water in the inner cavity of the heat preservation frame, when the temperature value is low, the PLC controller automatically controls the electric heating pipe to start to be electrified, so as to heat the clean water in the inner cavity of the heat preservation frame, and the water body in the inner cavity of the sewage treatment box is heated by the water temperature of the clean water in the inner cavity of the heat preservation frame, so that the activity of the denitrifying bacteria is conveniently ensured.

[0019] Optionally, a feeding pipe is fixedly embedded at one end of the upper surface of the sewage treatment box, and a sewage discharge bottom pipe penetrating through the bottom wall of the heat preservation frame is fixedly embedded at the middle position of the lower surface of the sewage treatment box.

[0020] By adopting the technical scheme, the control valve of the feeding pipe is opened, and appropriate sewage, denitrifying bacteria and organic matters such as methanol or ethanol are injected into the inner cavity of the sewage treatment box, denitrification and nitrogen removal treatment is carried out, and after the denitrification and nitrogen removal is completed, the control valve of the sewage discharge bottom pipe is opened, so that the sewage and other substances in the inner cavity of the sewage treatment box are discharged.

[0021] In summary, the utility model has at least one of the following beneficial effects:

[0022] When the denitrification and nitrogen removal sewage treatment equipment is used in an environment with low winter temperature, appropriate clean water is first injected into the inner cavity of the heat preservation frame through the top opening of the heat preservation frame, when the temperature value is low, the PLC controller automatically controls the electric heating pipe to start to be electrified, so as to heat the clean water in the inner cavity of the heat preservation frame, the water body in the inner cavity of the sewage treatment box is heated by the water temperature of the clean water in the inner cavity of the heat preservation frame, so that the activity of the denitrifying bacteria is conveniently ensured, and the efficiency of denitrification and nitrogen removal is conveniently ensured.

[0023] The water pump is started, and the clean water at the bottom of the inner cavity of the heat preservation frame is pumped and injected into the upper area of the inner cavity of the heat preservation frame, so that the clean water in the inner cavity of the heat preservation frame can flow, and the uniformity of the water temperature distribution is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed for the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 It is a front view of the sectional structure of the present application.

[0026] Figure 2 It is a front view of the sectional structure of the sewage treatment structure of the present application.

[0027] Figure 3 It is a bottom view of the sectional structure of the stirring assembly, the inverted U-shaped frame and the power assembly of the present application.

[0028] Figure 4 It is a front view of the sectional structure of the heat preservation structure of the present application.

[0029] Explanation of reference signs: 100, sewage treatment structure; 101, sewage treatment box body; 102, air exhaust assembly; 1021, air exhaust pipe; 1022, liquid nitrogen storage tank; 103, cushion block; 104, sewage discharge bottom pipe; 105, stirring assembly; 1051, stirring frame; 1052, first transverse gear; 106, exhaust pipe; 107, inverted U-shaped frame; 108, PLC controller; 109, power assembly; 1091, power shaft; 1092, speed regulating motor; 1093, second transverse gear; 110, material injection pipe; 200, heat preservation structure; 201, heat preservation frame; 202, water temperature detection sensor; 203, electric heating pipe; 204, I-shaped cushion leg; 205, water temperature uniform distribution assembly; 2051, cushion frame; 2052, water pump; 2053, water pipe. DETAILED DESCRIPTION

[0030] The following will be described in combination with the drawings Figures 1-4 The present application will be further described in detail.

[0031] Embodiment one, please refer to the drawings in the specification Figure 1 and 2The utility model provides a kind of denitrification wastewater treatment equipment, comprising, wastewater treatment structure 100, including wastewater treatment box 101, wastewater treatment box 101 one side is connected with exhaust air component 102, exhaust air component 102 includes liquid nitrogen storage tank 1022, liquid nitrogen storage tank 1022 is arranged in the outside position of wastewater treatment box 101, liquid nitrogen storage tank 1022 end is connected with the exhaust air pipe 1021 extending to the upper end of the inner chamber of wastewater treatment box 101, control valve is installed outside exhaust air pipe 1021, exhaust pipe 106 is installed on the other side of wastewater treatment box 101, one-way valve is installed outside exhaust pipe 106, one end of the upper surface of wastewater treatment box 101 is fixedly embedded with injection pipe 110, sewage bottom pipe 104 is fixedly embedded with the exhaust of penetrating heat preservation frame 201 bottom wall in the middle position of the lower surface of wastewater treatment box 101, control valve is installed outside injection pipe 110 and sewage bottom pipe 104.

[0032] Specific working principle is: open injection pipe 110 upper control valve and inject appropriate amount of wastewater, denitrifying bacteria and organic matter such as methanol or ethanol into the inner chamber of wastewater treatment box 101, open the control valve on exhaust air pipe 1021 can make the liquid nitrogen in the inner chamber of liquid nitrogen storage tank 1022 gasify and be injected into the inner chamber of wastewater treatment box 101 via exhaust air pipe 1021, under the action of one-way valve, the air in the inner chamber of wastewater treatment box 101 can be discharged via exhaust pipe 106, so that the inner chamber of wastewater treatment box 101 is in the environment of oxygen deficiency or anaerobic and carries out denitrification treatment.

[0033] Embodiment two, please refer to the drawing in the specification Figure 1 、 2 And 3, a kind of denitrification wastewater treatment equipment, comprising, wastewater treatment box 101 upper surface middle position installs inverted U-shaped frame 107, the front and rear sides of inverted U-shaped frame 107 are set as open, inverted U-shaped frame 107 upper surface middle position installs power component 109, power component 109 includes speed-regulating motor 1092, speed-regulating motor 1092 is fixed at the upper surface of inverted U-shaped frame 107, speed-regulating motor 1092 output end installs the power shaft 1091 penetrating the top wall of inverted U-shaped frame 107, the lower end position of the outer wall of power shaft 1091 is fixedly installed with second transverse gear 1093.

[0034] Please refer to the drawing in the specification Figure 1 、 2And 3, the second transverse gear 1093 both ends are connected with stirring assembly 105, stirring assembly 105 includes stirring frame 1051, stirring frame 1051 is rotatably connected at the inner cavity upper surface of inverted U-shaped frame 107, the lower end of stirring frame 1051 extends to the inner cavity of sewage treatment tank 101, the outer wall of stirring frame 1051 upper end is fixed with the first transverse gear 1052 that is mutually engaged with the second transverse gear 1093, the first transverse gear 1052 and the second transverse gear 1093 outside are provided with lubricating oil.

[0035] Specific working principle is: in the denitrification process, start the speed motor 1092 and drive power shaft 1091 rotation so that the second transverse gear 1093 can be driven to rotate synchronously, under the action of the second transverse gear 1093 can make the first transverse gear 1052 reverse rotation so as to drive stirring frame 1051 synchronous rotation, in turn can make sewage, denitrifying bacteria and methanol or ethanol and other organic matter fully contact, improve the efficiency of denitrification, after denitrification, open the control valve on the sewage discharge pipe 104 can make sewage treatment tank 101 inner cavity sewage and other materials discharge.

[0036] Example three, please refer to the specification attached drawings Figure 1 And 4 A kind of denitrification sewage treatment equipment, further comprising, the outer edge at the lower surface of sewage treatment tank 101 is installed with multiple groups of cushion block 103, heat preservation structure 200, it includes heat preservation frame 201, heat preservation frame 201 is fixed on the bottom wall of multiple groups of cushion block 103, heat preservation frame 201 is arranged at the outside of sewage treatment tank 101, the upper end of heat preservation frame 201 is set as open, the outer edge at the lower surface of heat preservation frame 201 is installed with multiple groups of I-shaped cushion leg 204, the outer wall of one side of heat preservation frame 201 is installed with multiple groups of electric heating pipe 203.

[0037] Please refer to the specification attached drawings Figure 1 And 4 The outer wall of the other side of heat preservation frame 201 is installed with water temperature uniform distribution assembly 205, water temperature uniform distribution assembly 205 includes cushion frame 2051, cushion frame 2051 is fixedly welded at the outer wall bottom end position of heat preservation frame 201, water pump 2052 is installed on cushion frame 2051, water pump 2052 output end and input end are all installed with water pipe 2053 extending into the inner cavity of heat preservation frame 201, water temperature detection sensor 202 is fixedly embedded at the lower end position of the outer wall of heat preservation frame 201, one end of the upper surface of inverted U-shaped frame 107 is installed with PLC controller 108, PLC controller 108 is electrically connected between water temperature detection sensor 202 and electric heating pipe 203 respectively.

[0038] Specific working principle is: when the winter temperature is lower in the environment using the denitrification and nitrogen removal sewage treatment equipment, first through the heat preservation frame 201 top opening to the heat preservation frame 201 inner chamber injects the appropriate amount of clean water, the water temperature interval is set by PLC controller 108, the water temperature detection sensor 202 can automatically detect the water temperature value in the heat preservation frame 201 inner chamber, when the temperature value is low, the PLC controller 108 automatically controls the electric heating pipe 203 to start power on and can heat the clean water in the heat preservation frame 201 inner chamber, the clean water temperature in the heat preservation frame 201 inner chamber is used to heat the sewage in the sewage treatment box 101 inner chamber, which is convenient to ensure the activity of denitrifying bacteria and is convenient to ensure the efficiency of denitrification and nitrogen removal.

[0039] When the electric heating pipe 203 is used to heat the clean water in the heat preservation frame 201 inner chamber, the water pump 2052 is started and the clean water at the bottom of the heat preservation frame 201 inner chamber is pumped and injected into the upper region of the heat preservation frame 201 inner chamber, so that the clean water in the heat preservation frame 201 inner chamber can flow, and the uniformity of water temperature distribution is improved.

[0040] The standard parts used in the utility model document can be purchased from the market, and the components in the utility model document can be ordered according to the description and drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0041] Unless otherwise expressly provided and limited, the terms "arrangement", "installation", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0042] The above are the preferred embodiments of the utility model, which do not limit the protection scope of the utility model, therefore: all equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A denitrification wastewater treatment device, characterized in that: The sewage treatment structure (100) comprises a sewage treatment box (101), one side of the sewage treatment box (101) is connected with an air exhaust assembly (102), the other side of the sewage treatment box (101) is provided with an exhaust pipe (106), the middle position of the upper surface of the sewage treatment box (101) is provided with an inverted U-shaped frame (107), the middle position of the upper surface of the inverted U-shaped frame (107) is provided with a power assembly (109), the both ends of the power assembly (109) are connected with an agitating assembly (105) extending into the inner cavity of the sewage treatment box (101), and the outer edge of the lower surface of the sewage treatment box (101) is provided with a plurality of groups of cushion blocks (103). The heat preservation structure (200) comprises a heat preservation frame (201), the heat preservation frame (201) is fixed on the bottom wall of the plurality of groups of cushion blocks (103), the heat preservation frame (201) is arranged outside the sewage treatment box (101), the outer edge of the lower surface of the heat preservation frame (201) is provided with a plurality of groups of I-shaped cushion legs (204), the outer wall of one side of the heat preservation frame (201) is provided with a plurality of groups of electric heating pipes (203), and the outer wall of the other side of the heat preservation frame (201) is provided with a water temperature uniform distribution assembly (205). The air exhaust assembly (102) comprises a liquid nitrogen storage tank (1022), the liquid nitrogen storage tank (1022) is arranged at the outer side of the sewage treatment box (101), and the end of the liquid nitrogen storage tank (1022) is connected with an air exhaust pipe (1021) extending to the upper end of the inner cavity of the sewage treatment box (101).

2. The denitrification and nitrogen removal wastewater treatment apparatus according to claim 1, characterized by: The power assembly (109) comprises a speed regulating motor (1092), the speed regulating motor (1092) is fixed at the upper surface of the inverted U-shaped frame (107), a power shaft (1091) penetrating through the top wall of the inverted U-shaped frame (107) is arranged at the output end of the speed regulating motor (1092), and a second transverse gear (1093) is fixedly arranged at the lower end position of the outer wall of the power shaft (1091).

3. The denitrification and nitrogen removal wastewater treatment apparatus according to claim 1, characterized by: The agitating assembly (105) comprises an agitating frame (1051), the agitating frame (1051) is rotatably connected to the inner cavity of the upper surface of the inverted U-shaped frame (107), the lower end of the agitating frame (1051) extends into the inner cavity of the sewage treatment box (101), and a first transverse gear (1052) is fixedly arranged at the upper end of the outer wall of the agitating frame (1051) and is in mesh with the second transverse gear (1093).

4. The denitrification and nitrogen removal wastewater treatment apparatus according to claim 3, characterized by: The water temperature uniform distribution assembly (205) comprises a cushion frame (2051), the cushion frame (2051) is fixedly welded at the bottom end position of the outer wall of the heat preservation frame (201), a water pump (2052) is arranged on the cushion frame (2051), and water pipes (2053) extending into the inner cavity of the heat preservation frame (201) are arranged at the output end and the input end of the water pump (2052).

5. The denitrification and nitrogen removal wastewater treatment apparatus according to claim 1, characterized by: ​ 6. The denitrification and nitrogen removal wastewater treatment apparatus according to claim 1, characterized by: The lower end position of the outer wall of the heat preservation frame (201) is fixedly embedded with a water temperature detection sensor (202), one end of the upper surface of the inverted U-shaped frame (107) is provided with a PLC controller (108), and the PLC controller (108) is electrically connected with the water temperature detection sensor (202) and the electric heating pipe (203) respectively.

7. The denitrification and nitrogen removal wastewater treatment apparatus according to claim 1, characterized by: One end of the upper surface of the sewage treatment box body (101) is fixedly embedded with a feeding pipe (110), and the lower surface of the sewage treatment box body (101) is fixedly embedded with a sewage discharge bottom pipe (104) penetrating through the bottom wall of the heat preservation frame (201).

8. The denitrification and nitrogen removal wastewater treatment apparatus according to claim 1, characterized by: A one-way valve is mounted outside the exhaust pipe (106).

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