Dosing device for sewage treatment

Abstract

The invention provides a dosing device for sewage treatment, and relates to the technical field of sewage treatment devices. The structure comprises a feeding box body, a feeding pipeline is arranged on the side wall of the feeding box body, an annular input pipeline is arranged in the feeding box body, the input pipeline is communicated with the feeding pipeline, a mounting seat is rotationally arranged in the feeding box body, a stirring mechanism is mounted on the mounting seat, and a plurality of discharge ports opposite to the stirring mechanism are formed in the inner side of the input pipeline; a back-flushing assembly used for conducting back-flushing on liquid is arranged in the feeding box body. And the feeding box body is internally provided with the back-flushing assembly for back-flushing the liquid, so that the stirring mechanism can be used for back-flushing the sewage and the medicament while stirring the sewage and the medicament, and the medicament is more uniformly mixed with the sewage in the sewage, so that the sewage treatment effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment devices, and in particular to a dosing device for sewage treatment. Background Art

[0002] In the prior art, sewage is usually purified by using flocculants, which can aggregate fine particles and natural colloids in water into large flocs, thereby purifying sewage. However, the flocculants will be sheared and degraded by the high-speed rotating blades, causing their properties to change and unable to play a normal role. If the flocculants are not stirred, it is difficult to fully mix the flocculants and sewage. Too much flocculants gather together and all the flocculants cannot play a role, resulting in a waste of flocculants.

[0003] However, in the prior art, high-pressure gas is injected into sewage using a booster device, and the drugs are brought underwater, which will form bubbles. Some tiny drugs will float upward with the bubbles and finally break at the liquid surface. The tiny drugs inside will diffuse into the surrounding environment, which may easily affect the surrounding environment. The blowing mechanism cannot accurately control the amount of drugs when discharging drugs, which may easily cause the optimal mixing ratio of drugs and sewage to be inconsistent. Summary of the invention

[0004] The object of the present invention is to provide a dosing device for sewage treatment, which can solve the problems raised by the above-mentioned background technology in view of the shortcomings of the prior art.

[0005] The technical solution of the present invention is achieved in this way:

[0006] The invention provides a dosing device for sewage treatment, comprising a dosing box, a dosing pipe is arranged on the side wall of the dosing box, a ring-shaped input pipe is arranged in the dosing box, the input pipe is connected with the dosing pipe, a mounting seat is rotatably arranged in the dosing box, a stirring mechanism is installed on the mounting seat, a plurality of discharge ports opposite to the stirring mechanism are opened on the inner side of the input pipe; a recoil assembly for recoiling liquid is arranged in the dosing box.

[0007] In some technical schemes of the present invention, the stirring mechanism includes a mounting shaft installed on a mounting base, and a plurality of arc-shaped first blades are arranged around the outer circumferential wall of the mounting shaft, wherein the outer arc surface of one first blade is opposite to the inner arc surface of an adjacent first blade, and a first drive motor transmission-connected to the mounting base is installed at the bottom of the feeding box.

[0008] In some technical solutions of the present invention, the recoil assembly includes a gas inlet pipe installed in the feeding box body. A first chamber is opened in the installation shaft, and the gas inlet pipe is communicated with the first chamber. Second chambers communicated with the first chamber are opened in the first fan blades, and first exhaust holes communicated with the second chambers are opened on the outer side wall of the first fan blades.

[0009] In some technical solutions of the present invention, installation openings are opened in the middle of the first fan blades, and shaft rods are rotatably arranged in the installation openings. A plurality of second fan blades are arranged around the shaft rods, and second exhaust holes communicated with the second chambers are opened on the opposite inner side walls of the installation openings.

[0010] In some technical solutions of the present invention, an installation ring is rotatably arranged in the feeding box body. A sealing ring is installed on the end face of the installation ring. A plurality of output ports corresponding to the discharge ports one by one are opened on the side wall of the sealing ring. A second driving motor is installed on the side wall of the feeding box body. An internal gear ring is arranged on the end face of the installation ring, and a transmission gear meshing with the internal gear ring is arranged on the output end of the second driving motor.

[0011] In some technical solutions of the present invention, a plurality of third fan blades are arranged around the inner side wall of the sealing ring, and the inner arc surface of any one third fan blade is opposite to the outer arc surface of its adjacent third fan blade.

[0012] In some technical solutions of the present invention, an annular first air guide branch pipe and a second air guide branch pipe are installed on the outer side wall of the gas inlet pipe. The first air guide branch pipe is communicated with the gas inlet pipe. A plurality of connecting pipes are arranged between the first air guide branch pipe and the second air guide branch pipe. The second air guide branch pipe is communicated with the feeding pipeline. A diversion pipe is arranged on the side wall of the second air guide branch pipe, and a spray head is installed on the free end of the diversion pipe.

[0013] In some technical solutions of the present invention, the diameter of the circle where the second air guide branch pipe is located is larger than the diameter of the circle where the first air guide branch pipe is located.

[0014] In some technical solutions of the present invention, an annular inner convex platform is arranged at the connection of the first air guide branch pipe and the gas inlet pipe. A conical air guide channel is opened on the inner side wall of the inner convex platform, and the small-diameter end of the air guide channel faces the bottom of the feeding box body.

[0015] In some technical solutions of the present invention, a wheel set mechanism is arranged on the outer side wall of the feeding box body.

[0016] Compared with the prior art, the present invention has at least the following advantages or beneficial effects:

[0017] The stirring mechanism is used to stir the sewage and the medicament added into the feeding box body to make the two mix evenly. A plurality of discharge ports opposite to the stirring mechanism are arranged on the inner side of the input pipeline, and the discharge ports are inclined on the inner side wall of the input pipeline. In this way, when the sewage enters the feeding box body from the discharge ports opened on the input pipeline, an oblique thrust can be applied to the stirring mechanism mounted on the mounting seat, forcing the stirring mechanism to make a circular motion in the feeding box body under the push of the liquid, avoiding the need for additional external driving equipment and achieving the purpose of saving resources. A backwashing assembly for backwashing the liquid is provided in the feeding box body, so that while the stirring mechanism stirs the sewage and the medicament, it can also backwash the sewage and the medicament, making the medicament mix more evenly with the sewage in the sewage and improving the sewage treatment effect. The mixed high-concentration medicament is injected into the feeding box body under the combined action of high-pressure liquid and high-pressure gas, and a barrier is formed in the feeding box body by using a spray head to prevent the problem that when the medicament combines with the bubbles in the sewage, it is easily carried away by the bubbles out of the feeding box body and floats outside the processing area, which is likely to cause damage to the surrounding environment and the health of construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 is an installation structural schematic diagram of the feeding box body and the wheel set mechanism in the present invention;

[0021] Figure 3 is an internal structural combined schematic diagram of the present invention;

[0022] Figure 4 is a combined structural schematic diagram of the sealing ring and the input pipeline in the present invention;

[0023] Figure 5 is Figure 4 a top view sectional structural schematic diagram of;

[0024] Figure 6 is a combined structural schematic diagram of the first fan blade and the third fan blade in the present invention;

[0025] Figure 7 is a sectional structural schematic diagram of the feeding box body in the invention.

[0026] Icon: 1. Feeding box body; 2. Feeding pipeline; 3. Gas inlet pipe; 4. First gas guiding branch pipe; 5. Wheel set; 6. Connecting pipe; 7. Second gas guiding branch pipe; 8. Diversion pipe; 9. Installation ring; 10. Input pipeline; 11. Vertical pipe; 12. Fixed seat; 13. Third fan blade; 14. First fan blade; 15. Sealing ring; 16. Discharge port; 17. Output port; 18. Installation shaft; 19. First exhaust hole; 20. Second chamber; 21. First chamber; 22. Second fan blade; 23. Second driving motor; 24. Transmission gear; 25. Internal tooth ring; 26. Bearing platform; 27. Installation seat. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0029] Embodiment

[0030] Please refer to Figures 1 - 7 as shown.

[0031] The present invention provides a chemical dosing device for sewage treatment, such as Figure 1 , Figure 2As shown in the figure, it mainly solves the problems in the prior art that after adding flocculant to sewage, the medicine is directly added to the sewage and is prone to uneven mixing. Moreover, after the medicine combines with the bubbles in the sewage, it is easily carried away by the bubbles out of the feeding box body 1 until it drifts outside the processing area, which is likely to cause damage to the surrounding environment and the health of construction workers. To solve the above problems, this device includes a feeding box body 1, and the feeding box body 1 is in a cylindrical shape; its material is stainless steel. A feeding pipe 2 is provided on the side wall of the feeding box body 1. The feeding pipe 2 is connected to the sewage pipe through a flange, and a valve is also provided between the two to facilitate the interception treatment of the connection between the two; it is convenient for later maintenance of the structure inside the feeding box body 1. An annular input pipe 10 is provided inside the feeding box body 1. The cross-section of the input pipe 10 is rectangular or circular, and its material is a steel pipe, and an outer layer is covered with a layer of rubber protection layer to extend the service life of the input pipe 10; the input pipe 10 is connected to the feeding pipe 2 through a flange. A mounting seat 27 is rotatably provided inside the feeding box body 1. The mounting seat 27 abuts against the inner bottom wall of the feeding box body 1, and the mounting seat 27 is rotatably provided inside the feeding box body 1 through a sealed bearing. A stirring mechanism is installed on the mounting seat 27. The stirring mechanism is used to stir the sewage and the medicine added into the feeding box body 1 to make the two mix evenly. A plurality of discharge ports 16 opposite to the stirring mechanism are opened on the inner side of the input pipe 10, and the discharge ports 16 are obliquely arranged on the inner side wall of the input pipe 10. In this way, when the sewage enters the feeding box body 1 from the discharge ports 16 opened on the input pipe 10, an oblique thrust can be applied to the stirring mechanism installed on the mounting seat 27, forcing the stirring mechanism to make a circular motion inside the feeding box body 1 under the push of the liquid, avoiding additional external driving equipment and achieving the purpose of saving resources. An anti-flushing component for anti-flushing the liquid is provided inside the feeding box body 1, so that while the stirring mechanism stirs the sewage and the medicine, it can also anti-flush the sewage and the medicine, making the medicine mix more evenly with the sewage in the sewage and improving the sewage treatment effect.

[0032] In some technical solutions of the present invention, the stirring mechanism includes a mounting shaft 18 installed on the mounting seat 27. The mounting shaft 18 is embedded in an internal threaded hole opened in the middle of the mounting seat 27, and the mounting shaft 18 is threadedly connected to the internal threaded hole. A plurality of arc-shaped first fan blades 14 are arranged around the outer circumferential wall of the mounting shaft 18. The first fan blades 14 and the mounting shaft 18 are integrally formed by welding. The number of the first fan blades 14 is at least 6. The outer arc surface of one of the first fan blades 14 is opposite to the inner arc surface of its adjacent first fan blade 14. In this way, the contact area when the first fan blades 14 contact the sewage can be increased, and the stirring effect of this structure on the sewage can also be increased, and the disturbance ability of the sewage can be increased.

[0033] A first driving motor is installed at the bottom of the feeding box body 1 and is in transmission connection with the mounting seat 27. The first driving motor is in transmission connection with the mounting seat 27 through a coupling, and is used to apply a continuous driving force to the stirring mechanism mounted on the mounting seat 27.

[0034] In some technical solutions of the present invention, the backflush assembly includes a gas inlet pipe 3 installed in the feeding box body 1. The gas inlet pipe 3 is fixed to the top of the feeding box body 1 through a bracket. A first chamber 21 is formed in the mounting shaft 18. The gas inlet pipe 3 is inserted into the first chamber 21, and the gas inlet pipe 3 is rotationally communicated with the inner wall of the first chamber 21. Second chambers 20 communicating with the first chamber 21 are formed in the first fan blades 14. First exhaust holes 19 communicating with the second chambers 20 are formed in the outer side walls of the first fan blades 14. The high-pressure gas input from the outside is sequentially introduced into the first chamber 21 and the second chambers 20 through the gas inlet pipe 3 in the above structure and then discharged from the first exhaust holes 19, so that the high-pressure gas can act on the sewage, making the sewage placed between any two adjacent first fan blades 14 roll more violently, increasing the disturbance ability of the sewage, and thus making the sewage and the medicament mix more evenly.

[0035] In some technical solutions of the present invention, mounting openings are formed in the middle of the first fan blades 14. The mounting openings are strip-shaped. Shaft rods are rotatably arranged in the mounting openings through bearings. At least 3 second fan blades 22 are arranged around the shaft rods. The second fan blades 22 are fixedly connected to the shaft rods by welding. Second exhaust holes communicating with the second chambers 20 are formed in the opposite inner side walls of the mounting openings. The second air holes are obliquely arranged on the opposite inner side walls of the mounting openings, and the axes of the second air holes on the opposite inner side walls of the mounting openings are parallel to each other, so as to apply a forward and reverse driving force to the second fan blades 22 placed in the first fan blades 14 to force the second fan blades 22 to stir the sewage placed between any two adjacent first fan blades 14, increasing the disturbance ability of the sewage, and thus making the sewage and the medicament mix more evenly.

[0036] In some technical solutions of the present invention, an installation ring 9 is rotatably provided in the feeding box body 1. A sealing ring 15 is installed on the end face of the installation ring 9. After the installation ring 9 is rotatably connected to the sealing ring 15, a sliding seal seat is provided between the two to achieve dynamic sealing of the two. And the provided sealing ring 15 is fixed on the inner wall of the feeding box body 1 by welding. The sealing ring 15 is placed in the annular area of the input pipeline 10. And an annular sealing strip is laid on the outer side wall of the provided sealing ring 15 to seal the gap between the input pipeline 10 and the sealing ring 15, avoiding the problem of sewage leakage. A plurality of output ports 17 corresponding to the discharge ports 16 one by one are opened on the side wall of the sealing ring 15. A second driving motor 23 is installed on the side wall of the feeding box body 1. An internal gear ring 25 is provided on the end face of the installation ring 9. A transmission gear 24 meshing with the internal gear ring 25 is provided on the output end of the second driving motor 23. Through the above structure, the output area of the discharge port 16 can be changed, so as to control the output capacity of the sewage entering the feeding box body 1, so that the sewage placed in the feeding box body 1 can be mixed more evenly with the medicament.

[0037] Preferably, at least 6 vertical pipes 11 are provided on the input pipeline 10. An arc surface adapted to the sealing ring 15 is provided on the side wall of the vertical pipe 11, and the output port 17 is also provided on the arc surface of the vertical pipe 11.

[0038] In some technical solutions of the present invention, a plurality of third fan blades 13 are circumferentially provided on the inner side wall of the sealing ring 15. The number of the third fan blades 13 is at least 6. The inner arc surface of any one of the third fan blades 13 is opposite to the outer arc surface of its adjacent third fan blade 13. It can increase the disturbance ability of the sewage in the feeding box body 1 and improve the mixing effect of the sewage and the medicament.

[0039] Preferably, the inner arc surface of the third fan blade 13 is opposite to the inner arc surface of the first fan blade 14. When the first fan blade 14 is installed counterclockwise on the installation shaft 18, the third fan blade 13 is installed clockwise on the inner side wall of the sealing ring 15. In this way, when the first fan blade 14 rotates relative to the third fan blade 13, a shearing force for shearing the sewage can be formed, so as to stir the slurry in a positive and negative manner, improve the mixing of the sewage under the action of high-pressure gas and the stirring mechanism, and thus improve the purification effect of this structure on the sewage.

[0040] In some technical solutions of the present invention, a ring-shaped first air guide branch pipe 4 and a second air guide branch pipe 7 are installed on the outer side wall of the gas inlet pipe 3. The first air guide branch pipe 4 is communicated with the gas inlet pipe 3. The first air guide branch pipe 4 is fixed on the gas inlet pipe 3 through a fixing frame. A plurality of connecting pipes 6 are provided between the first air guide branch pipe 4 and the second air guide branch pipe 7. The second air guide branch pipe 7 is communicated with the feeding pipe 2. A diversion pipe 8 is provided on the side wall of the second air guide branch pipe 7. A spray head is installed at the free end of the diversion pipe 8.

[0041] The second gas diversion branch pipe 7 is communicated with the feeding pipeline 2 and is provided with a medicament addition port.

[0042] In some technical solutions of the present invention, the diameter of the circle where the second gas diversion branch pipe 7 is located is greater than the diameter of the circle where the first gas diversion branch pipe 4 is located.

[0043] In some technical solutions of the present invention, at the connection between the first gas diversion branch pipe 4 and the gas introduction pipe 3, there is an annular inner convex platform. A frustum-shaped gas guide channel is opened on the inner side wall of the inner convex platform, and the small-diameter end of the gas guide channel faces the bottom of the feeding box body 1. Through the above structure, high-pressure gas can be used for diversion, and then the mixed high-concentration medicament is injected into the feeding box body 1 under the combined action of high-pressure liquid and high-pressure gas, and a barrier is formed in the feeding box body 1 by using a spray head, preventing the problem that after the medicament combines with the bubbles in the sewage, it is easily carried away by the bubbles out of the feeding box body 1 until it drifts outside the processing area, which is likely to cause damage to the surrounding environment and the bodies of construction workers.

[0044] In some technical solutions of the present invention, a wheel set 5 mechanism is provided on the outer side wall of the feeding box body 1. The wheel set 5 mechanism is a flatbed truck structure, which includes a bearing platform 26. An installation rod is rotatably provided on the bearing platform 26, and a fixing seat 12 is provided at the free end of the installation. The feeding box body 1 is fixed on the fixing seat 12, which is convenient for operators to transport or turn over this structure, so that the feeding box body 1 is inverted in the sewage, enabling the sewage to backflush into the feeding box body 1 to be mixed with the sewage and medicament located in the feeding box body 1, avoiding the problem that after the medicament combines with the bubbles in the sewage, it is easily carried away by the bubbles out of the feeding box body 1 until it drifts outside the processing area, which is likely to cause damage to the surrounding environment and the bodies of construction workers. It is also convenient for later maintenance. And the provided feeding box body 1 is rotatably arranged on the bearing platform 26 of the wheel set 5 mechanism, and two wheel sets 5 are rotatably provided on the bearing platform 26.

[0045] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A chemical dosing device for sewage treatment, characterized in that, It includes a feeding box body, a feeding pipe is provided on the side wall of the feeding box body, an annular input pipe is provided in the feeding box body, the input pipe is communicated with the feeding pipe, a mounting seat is rotatably provided in the feeding box body, a stirring mechanism is mounted on the mounting seat, and a plurality of discharge ports opposite to the stirring mechanism are opened on the inner side of the input pipe; a backwashing assembly for backwashing the liquid is provided in the feeding box body.

2. The chemical dosing device for sewage treatment according to claim 1, characterized in that, The stirring mechanism includes a mounting shaft mounted on the mounting seat, and a plurality of arc-shaped first fan blades are arranged around the outer circumferential wall of the mounting shaft, and the outer arc surface of one of the first fan blades is opposite to the inner arc surface of its adjacent first fan blade.

3. The chemical dosing device for sewage treatment according to claim 2, characterized in that, The backwashing assembly includes a gas inlet pipe mounted in the feeding box body, a first chamber is opened in the mounting shaft, the gas inlet pipe is communicated with the first chamber, a second chamber communicated with the first chamber is opened in each of the first fan blades, and a first exhaust hole communicated with the second chamber is opened on the outer side wall of the first fan blade.

4. A chemical dosing device for sewage treatment according to claim 3, characterized in that, Mounting openings are opened in the middle of the first fan blades, a shaft rod is rotatably provided in each mounting opening, a plurality of second fan blades are arranged around the shaft rod, and second exhaust holes communicated with the second chamber are opened on the opposite inner side walls of the mounting openings.

5. A chemical dosing device for sewage treatment according to any one of claims 1-4, characterized in that, A mounting ring is rotatably provided in the feeding box body, a sealing ring is mounted on the end surface of the mounting ring, a plurality of output ports corresponding to the discharge ports one by one are opened on the side wall of the sealing ring, a second driving motor is mounted on the side wall of the feeding box body, and an internal gear ring is provided on the end surface of the mounting ring, and a transmission gear meshing with the internal gear ring is provided on the output end of the second driving motor.

6. The chemical dosing device for sewage treatment according to claim 5, characterized in that, A plurality of third fan blades are arranged around the inner side wall of the sealing ring, and the inner arc surface of any one of the third fan blades is opposite to the outer arc surface of its adjacent third fan blade.

7. The chemical dosing device for sewage treatment according to claim 3, characterized in that, A ring-shaped first air guiding branch pipe and a second air guiding branch pipe are mounted on the outer side wall of the gas inlet pipe, the first air guiding branch pipe is communicated with the gas inlet pipe, a plurality of communicating pipes are arranged between the first air guiding branch pipe and the second air guiding branch pipe, the second air guiding branch pipe is communicated with the feeding pipe, a diversion pipe is provided on the side wall of the second air guiding branch pipe, and a spray head is mounted on the free end of the diversion pipe.

8. A chemical dosing device for sewage treatment according to claim 7, characterized in that, The diameter of the circle where the second air guiding branch pipe is located is larger than the diameter of the circle where the first air guiding branch pipe is located.

9. The chemical dosing device for sewage treatment according to claim 7, characterized in that, An annular inner convex platform is provided at the connection between the first air guiding branch pipe and the gas inlet pipe, and a conical air guiding channel is opened on the inner side wall of the inner convex platform, and the small diameter end of the air guiding channel faces the bottom of the feeding box body.

10. The chemical dosing device for sewage treatment according to claim 1, wherein, A wheel set mechanism is provided on the outer side wall of the feeding box body.

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