A sewage denitrification and phosphorus removal treatment device
By simplifying the mixing components and water pump system, the problems of complex structure and insufficient mixing in existing devices have been solved, achieving efficient mixing of wastewater and reactants, improving nitrogen and phosphorus removal efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JINXIU SHANHE ENVIRONMENTAL ENG CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-26
AI Technical Summary
Existing wastewater treatment devices have complex mechanical structures, which increases manufacturing costs, and the mixing of wastewater and reactants is not thorough enough.
A simplified mixing assembly, including a motor, a rotating shaft, and stirring blades, is used. The inclined stirring blades rotate within the reaction chamber, and combined with a water pump and a return pipe, wastewater and reactants are mixed vertically, improving mixing efficiency.
This method achieves thorough mixing of wastewater and reactants in a simple and convenient manner, improving nitrogen and phosphorus removal efficiency and reducing production costs.
Smart Images
Figure CN224411451U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water treatment, and in particular to a wastewater denitrification and phosphorus removal treatment device. Background Technology
[0002] With the increasing severity of eutrophication in water bodies and the tightening of wastewater discharge standards in my country, nitrogen and phosphorus removal has become a primary goal of wastewater treatment. However, conventional activated sludge processes have low nitrogen and phosphorus removal rates, falling far short of national discharge standards. Therefore, efficient nitrogen and phosphorus removal technologies have become a key research focus in the field of wastewater treatment.
[0003] In the prior art, patent document CN221500658U discloses a denitrification and phosphorus removal device for wastewater treatment, including a main body, a reaction chamber fixedly connected to the upper surface of the main body, a first motor fixedly connected to the upper surface of the reaction chamber, a protrusion fixedly connected to the output shaft of the first motor, the protrusion being elliptical in shape, a rotating rod arranged inside the reaction chamber, the rotating rod slidingly extending through the outside of the reaction chamber, the upper end of the rotating rod contacting the outer surface of the protrusion, and a second motor fixedly connected to the upper surface of the main body.
[0004] During use, it was found that when the above-mentioned device mixes the reactant with sewage, two sets of motors are required to work together to make the stirring blades move up and down and rotate at the same time to achieve mixing. The mechanical structure is relatively complex, which increases the manufacturing cost. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a wastewater denitrification and phosphorus removal treatment device.
[0006] This utility model discloses a wastewater denitrification and phosphorus removal treatment device, comprising a base plate, a shell, a filter screen, an inlet pipe, and a drain pipe. The shell is installed on the top of the base plate, and the filter screen is inclinedly arranged inside the shell, dividing the interior of the base plate into a left chamber and a right chamber. The inlet pipe is located at the left end of the shell, and the drain pipe is located at the right end of the shell. It also includes a reaction chamber assembly, which is located on the top of the base plate. In use, wastewater is pumped to the left chamber through the inlet pipe by a pump, where impurities in the wastewater remain. The wastewater passes through the filter screen into the right chamber and is then transported to the reaction chamber through the drain pipe. The reaction chamber assembly mixes the wastewater inside, improving the mixing of wastewater and reactants.
[0007] Preferably, the reaction chamber assembly includes a reaction chamber, a stirring assembly, a water pump, an external drain pipe, an external drain valve, a return pipe, and a return valve. The reaction chamber is mounted on the top of the base plate, the stirring assembly is installed on the reaction chamber, and the water pump is mounted on the top of the base plate. The water pump input is connected to the reaction chamber input, and the water pump output is connected to the external drain pipe, which is equipped with an external drain valve. The return pipe input is connected to the outer wall of the external drain pipe, and the return pipe is equipped with a return valve. The return pipe output is connected to the top of the reaction chamber. In use, the external drain valve is closed and the return valve is opened. The stirring assembly is started, and the filtered wastewater enters the reaction chamber. The reactant is added, and the water pump is started. The wastewater at the bottom of the reaction chamber is transported to the top of the reaction chamber through the external drain pipe, thereby completing the wastewater exchange between the upper and lower layers inside the reaction chamber. This allows the stirring assembly to fully mix the wastewater and reactant inside the reaction chamber. The structure is simple and the operation is convenient.
[0008] Preferably, the stirring assembly includes a motor, a rotating shaft, and stirring blades. The motor is installed at the top of the reaction chamber, and the motor output end is provided with a rotating shaft. The bottom end of the rotating shaft extends into the interior of the reaction chamber and is rotatably connected to the bottom end of the interior of the reaction chamber. Multiple sets of stirring blades are installed at an angle on the rotating shaft inside the reaction chamber. The controller starts the motor, thereby causing the rotating shaft to drive the multiple sets of stirring blades to rotate inside the reaction chamber. The multiple sets of stirring blades cooperate with each other to mix and stir the wastewater and the reactant, thereby improving the stirring efficiency.
[0009] Preferably, it also includes a slag discharge pipe and a slag discharge valve. A slag discharge pipe is installed at the bottom left end of the housing, and a slag discharge valve is installed on the slag discharge pipe. When there are impurities in the left chamber, the slag discharge valve is opened, so that the sewage and impurities are discharged through the slag discharge pipe, thereby improving convenience.
[0010] Preferably, it also includes an observation window, which is provided on the reaction chamber.
[0011] Preferably, it also includes a check valve, which is installed on the water inlet pipe.
[0012] Preferably, it also includes through holes, with multiple sets of through holes provided on each set of stirring blades; the stirring blades and multiple sets of through holes work together to mix and stir the wastewater and the reactant, thereby improving the stirring efficiency.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, sewage is pumped to the left chamber through the inlet pipe by the pump body equipment. Impurities in the sewage remain in the left chamber. The sewage passes through the filter screen into the right chamber and is then pumped to the reaction chamber through the drain pipe. The reaction chamber assembly mixes the sewage inside from top to bottom, improving the fullness of mixing between the sewage and the reactant. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;
[0015] Figure 2This is a cross-sectional structural schematic diagram of the present invention;
[0016] Figure 3 This is an enlarged structural diagram of the motor and reaction chamber, among other components.
[0017] Figure 4 It is an enlarged structural diagram of the shaft and stirring plates, etc.
[0018] Figure 5 It is an enlarged structural diagram of components such as water pumps and return valves.
[0019] The following are labeled in the attached diagram: 1. Base plate; 2. Shell; 3. Filter screen; 4. Water inlet pipe; 5. Drain pipe; 6. Reaction chamber; 7. Motor; 8. Shaft; 9. Stirring blade; 10. Water pump; 11. External drain pipe; 12. External drain valve; 13. Return pipe; 14. Return valve; 15. Slag discharge pipe; 16. Slag discharge valve; 17. Observation window; 18. Check valve; 19. Through hole. Detailed Implementation
[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1
[0021] This utility model provides a wastewater denitrification and phosphorus removal treatment device, such as... Figures 1 to 5 The device includes a base plate 1, a shell 2, a filter screen 3, a water inlet pipe 4, and a drain pipe 5. The shell 2 is installed on the top of the base plate 1. The filter screen 3 is installed at an angle inside the shell 2. The filter screen 3 divides the interior of the base plate 1 into a left chamber and a right chamber. The water inlet pipe 4 is installed at the left end of the shell 2, and the drain pipe 5 is installed at the right end of the shell 2. The device also includes a reaction chamber assembly, which is installed on the top of the base plate 1.
[0022] like Figure 3 and Figure 5 As shown, the reaction chamber assembly includes a reaction chamber 6, a stirring assembly, a water pump 10, an external drain pipe 11, an external drain valve 12, a return pipe 13, and a return valve 14. The reaction chamber 6 is installed on the top of the base plate 1. The stirring assembly is installed on the reaction chamber 6. The water pump 10 is installed on the top of the base plate 1. The input end of the water pump 10 is connected to the input end of the reaction chamber 6. The output end of the water pump 10 is provided with an external drain pipe 11. An external drain valve 12 is installed on the external drain pipe 11. The input end of the return pipe 13 is connected to the outer wall of the external drain pipe 11. A return valve 14 is installed on the return pipe 13. The output end of the return pipe 13 is connected to the top of the reaction chamber 6.
[0023] In this embodiment, during use, wastewater is pumped into the left chamber through the inlet pipe 4. Impurities in the wastewater remain in the left chamber. The wastewater passes through the filter screen 3 into the right chamber and is then pumped into the reaction chamber through the drain pipe 5. During use, the external drain valve 12 is closed and the return valve 14 is opened. The stirring assembly is started, and the filtered wastewater enters the reaction chamber 6. The reactant is added, and the water pump 10 is started. The wastewater at the bottom of the reaction chamber 6 is pumped to the top of the reaction chamber 6 through the external drain pipe 11, thereby completing the wastewater replacement between the upper and lower layers inside the reaction chamber 6. This allows the stirring assembly to fully mix the wastewater and reactant inside the reaction chamber 6. Example 2
[0024] Based on Example 1, such as Figures 1 to 5 As shown, the wastewater denitrification and phosphorus removal treatment device of this utility model includes a stirring assembly comprising a motor 7, a rotating shaft 8 and stirring blades 9. The motor 7 is installed at the top of the reaction chamber 6, and the rotating shaft 8 is provided at the output end of the motor 7. The bottom end of the rotating shaft 8 extends into the interior of the reaction chamber 6 and is rotatably connected to the bottom end of the interior of the reaction chamber 6. Multiple sets of stirring blades 9 are installed at an angle on the rotating shaft 8 inside the reaction chamber 6.
[0025] It also includes a slag discharge pipe 15 and a slag discharge valve 16. The slag discharge pipe 15 is installed at the bottom left end of the housing 2, and the slag discharge valve 16 is installed on the slag discharge pipe 15.
[0026] It also includes an observation window 17, a check valve 18, and a through hole 19. The reaction chamber 6 is provided with an observation window 17, the water inlet pipe 4 is installed with a check valve 18, and each set of stirring plates 9 is provided with multiple sets of through holes 19.
[0027] In this embodiment, the controller starts the motor 7, which causes the rotating shaft 8 to drive multiple sets of stirring blades 9 to rotate inside the reaction chamber 6. The multiple sets of stirring blades 9 cooperate with each other to mix and stir the sewage and the reactant. When there are impurities in the left chamber, the slag discharge valve 16 is opened, so that the sewage and impurities are discharged through the slag discharge pipe 15.
[0028] The wastewater denitrification and phosphorus removal treatment device of this utility model is controlled by a controller. The motor 7 and water pump 10 of this wastewater denitrification and phosphorus removal treatment device are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A wastewater denitrification and phosphorus removal treatment device, comprising a base plate (1), a shell (2), a filter screen (3), an inlet pipe (4), and a drain pipe (5), wherein the shell (2) is installed on the top of the base plate (1), the filter screen (3) is inclinedly arranged inside the shell (2), the filter screen (3) divides the interior of the base plate (1) into a left chamber and a right chamber, the inlet pipe (4) is arranged at the left end of the shell (2), and the drain pipe (5) is arranged at the right end of the shell (2), characterized in that, It also includes a reaction chamber assembly, which is provided on the top of the base plate (1).
2. The wastewater denitrification and phosphorus removal treatment device as described in claim 1, characterized in that, The reaction chamber assembly includes a reaction chamber (6), a stirring assembly, a water pump (10), an external drain pipe (11), an external drain valve (12), a return pipe (13), and a return valve (14). The reaction chamber (6) is installed on the top of the base plate (1). The stirring assembly is installed on the reaction chamber (6). The water pump (10) is installed on the top of the base plate (1). The input end of the water pump (10) is connected to the input end of the reaction chamber (6). The output end of the water pump (10) is provided with an external drain pipe (11). An external drain valve (12) is installed on the external drain pipe (11). The input end of the return pipe (13) is connected to the outer wall of the external drain pipe (11). A return valve (14) is installed on the return pipe (13). The output end of the return pipe (13) is connected to the top of the reaction chamber (6).
3. The wastewater denitrification and phosphorus removal treatment device as described in claim 2, characterized in that, The stirring assembly includes a motor (7), a rotating shaft (8), and stirring blades (9). The motor (7) is installed at the top of the reaction chamber (6), and the rotating shaft (8) is provided at the output end of the motor (7). The bottom end of the rotating shaft (8) extends into the interior of the reaction chamber (6) and is rotatably connected to the bottom end of the interior of the reaction chamber (6). Multiple sets of stirring blades (9) are installed at an angle on the rotating shaft (8) inside the reaction chamber (6).
4. The wastewater denitrification and phosphorus removal treatment device as described in claim 1, characterized in that, It also includes a slag discharge pipe (15) and a slag discharge valve (16). The slag discharge pipe (15) is installed at the bottom left end of the housing (2), and the slag discharge valve (16) is installed on the slag discharge pipe (15).
5. The wastewater denitrification and phosphorus removal treatment device as described in claim 2, characterized in that, It also includes an observation window (17), which is provided on the reaction chamber (6).
6. The wastewater denitrification and phosphorus removal treatment device as described in claim 1, characterized in that, It also includes a check valve (18), which is installed on the water inlet pipe (4).
7. The wastewater denitrification and phosphorus removal treatment device as described in claim 3, characterized in that, It also includes through holes (19), with multiple through holes (19) provided on each set of stirring plates (9).