Oxidation pond for water pretreatment of domestic sewage

Abstract

The invention relates to the technical field of oxidation ponds, in particular to an oxidation pond for water pretreatment of domestic sewage. The technical problem to be solved by the invention is that a powder oxidant is generally required to be manually scattered into water, so that the powder oxidant cannot be uniformly mixed in an oxidation pond. According to the technical scheme, the oxidation pond for domestic sewage water pretreatment comprises a water storage pond, and one side of the water storage pond is fixedly communicated with a water inlet pipe. The device has the beneficial effects that the premixing unit and the uniform stirring unit are matched for use, sewage enters an inner cavity of a spiral shell after being discharged into a water guide shell, and a spiral blade can be impacted through the shape setting of the spiral shell, so that a rotating rod rotates quickly, and therefore, a powder oxidant and water are premixed; when water enters the reservoir, the water can be quickly mixed through the uniform stirring unit, so that the sewage and the powder oxidant can be quickly mixed.

Description

Technical Field

[0001] The invention relates to the technical field of oxidation ponds, in particular to an oxidation pond for pre-treatment of domestic sewage. Background Art

[0002] Domestic sewage refers to the water used in people's daily lives and then discharged. When domestic sewage is made into drinking water, ozone and powdered oxidants need to be added to the oxidation tank to decompose difficult-to-degrade organic matter and improve the water quality to a higher standard. When treating sewage, the existing oxidation tank needs to sprinkle powdered oxidants in the oxidation tank. Usually, the powdered oxidants need to be sprinkled into the water manually, and it is inconvenient to stir the water, which results in the powdered oxidants being unable to be evenly mixed in the oxidation tank, thus affecting the efficiency of sewage treatment.

[0003] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing oxidation ponds on the market, and even if they can be solved, they need to be solved through external tools, which makes it impossible to achieve the desired effect. Therefore, we propose an oxidation pond for pretreatment of domestic sewage water. Summary of the invention

[0004] The object of the present invention is to provide an oxidation pond for pre-treatment of domestic sewage water to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an oxidation pond for pretreatment of domestic sewage water, comprising a water reservoir, one side of the water reservoir is fixedly connected to a water inlet pipe, the water inlet pipe is arranged in an L shape, the other side of the water reservoir is fixedly connected to a drain pipe, the inner cavity of the water reservoir is provided with an aeration pipe, the inner cavity of the water reservoir is provided with a mixing mechanism, and the top of the water reservoir is provided with a feeding mechanism, the feeding mechanism is used to feed a powdered oxidant;

[0006] The mixing mechanism comprises a premixing unit, the premixing unit is arranged in the inner cavity of the water reservoir, and the premixing unit is used to premix the powdered oxidant and water;

[0007] The mixing mechanism also includes a stirring unit, which is used in conjunction with the pre-mixing unit. The stirring unit is arranged in the inner cavity of the water reservoir and is used to stir the powdered oxidant and water evenly.

[0008] Preferably, the premixing unit includes a water guide shell fixedly connected to the inner cavity of a water reservoir, a spiral shell fixedly connected to one side of the water guide shell, the water guide shell is communicated with the spiral shell, a water leakage port is opened in the inner cavity of the spiral shell, the inner cavity of the water reservoir is rotatably connected to a rotating rod, the surface of the rotating rod is fixedly connected to spiral blades, the number of the spiral blades is several, the spiral blades are located in the inner cavity of the spiral shell, the bottom of the water guide shell is fixedly connected to a support plate, and the bottom of the support plate is fixedly connected to the inner wall of the water reservoir.

[0009] Preferably, the stirring unit includes a first rotating shaft rotatably connected to the inner cavity of the water reservoir, the number of the first rotating shafts is two, the surface of the first rotating shaft is fixedly connected with a first stirring blade, the number of the first stirring blades is several, the surface of the first rotating shaft is fixedly connected with a first bevel gear, the inner cavity of the water reservoir is rotatably connected with four second rotating shafts, one end of the second rotating shaft is fixedly connected with a second bevel gear, the second bevel gear is meshed with the first bevel gear, the surface of the second rotating shaft is fixedly connected with a second stirring blade, the number of the second stirring blades is several, the bottom of the water reservoir is slidably connected with a moving shell, the inner cavity of the moving shell is fixedly connected with a motor, the output end of the motor is fixedly connected with a second gear, one end of one of the first rotating shafts passes through the bottom of the water reservoir and is fixedly connected with a third gear, the second gear is meshed with the third gear, the bottom of the water reservoir is fixedly connected with a mounting plate, one side of the mounting plate is fixedly connected with an electric telescopic rod, and the telescopic end of the electric telescopic rod is fixedly connected to the moving shell.

[0010] Preferably, the surfaces of the first stirring blade and the second stirring blade are both provided with through holes, the inner cavity of the through hole is rotatably connected to a movable rod, the surface of the movable rod is rotatably connected to a connecting rod, the surface of the connecting rod is fixedly connected to a mounting blade, and the number of the mounting blades is several.

[0011] Preferably, a spring piece is fixedly connected to the inner cavity of the through hole, one end of the spring piece is fixedly connected to the surface of the movable rod, and the spring piece is made of copper.

[0012] Preferably, the tops of the two first rotating shafts and the rotating rod are fixedly connected with pulleys, and two adjacent pulleys are connected via belt transmission.

[0013] Preferably, bearings are fixedly sleeved on the surfaces of the two first rotating shafts and the rotating rod, and the outer sides of the outer rings of the bearings are fixedly connected to the inner wall of the water reservoir.

[0014] Preferably, the inner cavity of the water reservoir is fixedly connected to a support rod, and the surface of the second rotating shaft is rotatably connected to the inner cavity of the support rod.

[0015] Preferably, the feeding mechanism includes a storage box fixedly connected to the top of the water reservoir, the inner cavity of the storage box is provided with a support tube, the inner cavity of the support tube is rotatably connected with a rotating column, the surface of the rotating column is fixedly connected with blades, the number of the blades is several, the inner cavity of the storage box is fixedly connected with a fixing plate, the top of the fixing plate is fixedly connected to the bottom of the support tube, the surface of the rotating column is rotatably connected to the inner cavity of the fixing plate, the surface of the rotating column is fixedly connected with teeth, the number of the teeth is several, the bottom of the fixing plate is rotatably connected with a first gear, the number of the first gears is four, the surface of the first gear is meshed with the teeth, a feeding hole is opened at the bottom of the first gear, the feeding hole passes through the top of the fixing plate, the inner wall of the feeding hole is fixedly connected with a fixing rod, the bottom of the fixing rod is fixedly connected with a spiral rod, the inner cavity of the storage box is fixedly connected with a guide pipe, the inner wall of the guide pipe contacts the surface of the spiral rod, and one end of the guide pipe passes through the bottom of the storage box.

[0016] Preferably, a threaded rod is threadedly connected to the top of the support tube, one end of the threaded rod is fixedly connected to a spring, one end of the spring and one end of the rotating column are both fixedly connected to friction blocks, and the two friction blocks are in contact with each other.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention utilizes the coordinated use of a premixing unit and a stirring unit. After the sewage is discharged into the water guide shell, the sewage will enter the inner cavity of the spiral shell. The shape of the spiral shell can impact the spiral blades, causing the rotating rod to rotate rapidly, thereby realizing premixing of the powdered oxidant and water. When the water enters the water reservoir, the stirring unit can quickly mix the water, so that the sewage can be quickly mixed.

[0019] 2. The present invention utilizes a feeding mechanism and the impact force of water discharged from a water inlet pipe to cause the blades to drive the rotating column to rotate, thereby driving the powdered oxidant in the storage box to enter the guide pipe. The powdered oxidant is transported to the water guide shell through the rotation of the spiral rod, thereby allowing the powdered oxidant to mix quickly with water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the water storage tank, the motor and the moving shell of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the water guide shell, the spiral shell and the first stirring blade of the present invention;

[0023] Figure 4It is a schematic diagram of the structure of the water guide shell and the spiral shell of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the spiral blade and the first stirring blade of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the second stirring blade and the first stirring blade of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the movable rod and the blades of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the fixing plate, blades and support tube of the present invention;

[0028] Fig. 9 It is a cross-sectional schematic diagram of the material storage box and the rotating rod of the present invention;

[0029] Fig.10 For the present invention Fig. 9 A partial enlarged view of the middle A;

[0030] Fig.11 For the present invention Fig. 9 A partial enlarged view of point B in the middle.

[0031] In the figure: 1, water reservoir; 11, water inlet pipe; 12, drain pipe; 2, mixing mechanism; 21, pre-mixing unit; 2101, water guide shell; 2102, spiral shell; 2103, water leakage port; 2104, rotating rod; 2105, spiral blade; 2106, support plate; 22, stirring unit; 2201, first rotating shaft; 2202, first stirring blade; 2203, first bevel gear; 2204, second rotating shaft; 2205, second bevel gear; 2206, second stirring blade; 2207, moving shell; 2208, motor; 2209, second gear; 2210, third gear; 2 211. Mounting plate; 2212. Electric telescopic rod; 2213. Through hole; 2214. Movable rod; 2215. Connecting rod; 2216. Mounting leaf; 2217. Shrapnel; 2218. Pulley; 2219. Belt; 2220. Bearing; 2221. Support rod; 3. Feeding mechanism; 31. Storage box; 32. Support tube; 33. Rotating column; 34. Blade; 35. Fixed plate; 36. Teeth; 37. First gear; 38. Feed hole; 39. Fixed rod; 310. Screw rod; 311. Guide tube; 312. Threaded rod; 313. Spring; 314. Friction block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] See also Figure 1-11 The present invention provides a technical solution: an oxidation pond for pretreatment of domestic sewage water. The present invention makes corresponding improvements to the technical problems mentioned in the background technology, including a water reservoir 1, one side of the water reservoir 1 is fixedly connected with a water inlet pipe 11, the water inlet pipe 11 is arranged in an L shape, and the other side of the water reservoir 1 is fixedly connected with a drain pipe 12. The inner cavity of the water reservoir 1 is provided with an aeration pipe 13, wherein one end of the aeration pipe 13 penetrates to the outside of the water reservoir 1, and is used to transport external ozone to the water reservoir 1. This is the prior art and will not be elaborated on in detail. The inner cavity of the water reservoir 1 is provided with a mixing mechanism 2, and the mixing mechanism 2 includes a premixing unit 21, which is arranged in the inner cavity of the water reservoir 1, and the premixing unit 21 is used to premix a powdered oxidant and water. The powdered oxidant generally uses hydrogen peroxide powder and potassium ferrate powder.

[0035] As a further limitation of the mixing mechanism 2 of the present invention, the premixing unit 21 includes a water guide shell 2101 fixedly connected to the inner cavity of the water reservoir 1, a spiral shell 2102 is fixedly connected to one side of the water guide shell 2101, the water guide shell 2101 is communicated with the spiral shell 2102, the inner cavity of the spiral shell 2102 is provided with a water leakage port 2103, the inner cavity of the water reservoir 1 is rotatably connected to a rotating rod 2104, the surface of the rotating rod 2104 is fixedly connected to a spiral blade 2105, the number of the spiral blade 2105 is several, and the spiral blade 2105 is located in the inner cavity of the spiral shell 2102, and the bottom of the water-guiding shell 2101 is fixedly connected with a support plate 2106, and the bottom of the support plate 2106 is fixedly connected to the inner wall of the water reservoir 1. By setting the pre-mixing unit 21, after the sewage is discharged into the water-guiding shell 2101, the sewage will enter the inner cavity of the spiral shell 2102. Through the shape setting of the spiral shell 2102, the spiral blade 2105 can be impacted, so that the rotating rod 2104 rotates rapidly, thereby realizing the pre-mixing of the powdered oxidant and water.

[0036] The specific implementation method of this embodiment is as follows: after the sewage is discharged into the water guide shell 2101 through the water inlet pipe 11, the sewage will enter the inner cavity of the spiral shell 2102. Through the shape setting of the spiral shell 2102, the spiral blade 2105 can be impacted, causing the rotating rod 2104 to rotate rapidly. When the spiral blade 2105 rotates rapidly, the mixed water will enter the water reservoir 1 through the leakage port 2103, so that the powdered oxidant and water can be pre-mixed.

[0037] Embodiment 2

[0038] See also Figure 1-11 The present invention provides a technical solution: an oxidation pond for pretreatment of domestic sewage water. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The mixing mechanism 2 also includes a stirring unit 22, which is used in conjunction with the premixing unit 21. The stirring unit 22 is arranged in the inner cavity of the water storage tank 1, and the stirring unit 22 is used to stir the powdered oxidant and water.

[0039] As a further limitation of the mixing mechanism 2 of the present invention, the stirring unit 22 includes a first rotating shaft 2201 rotatably connected to the inner cavity of the water reservoir 1, the number of the first rotating shafts 2201 is two, the surface of the first rotating shaft 2201 is fixedly connected with a first stirring blade 2202, the number of the first stirring blades 2202 is several, the surface of the first rotating shaft 2201 is fixedly connected with a first bevel gear 2203, the inner cavity of the water reservoir 1 is rotatably connected with four second rotating shafts 2204, and one end of the second rotating shaft 2204 is fixedly connected with a second bevel gear 2205, the second bevel gear 2205 is meshed with the first bevel gear 2203, the surface of the second rotating shaft 2204 is fixedly connected with a second stirring blade 2206, the number of the second stirring blade 2206 is several, the bottom of the water reservoir 1 is slidably connected with a moving shell 2207, the inner cavity of the moving shell 2207 is fixedly connected with a motor 2208, the output end of the motor 2208 is fixedly connected with a second gear 2209, one end of one of the first rotating shafts 2201 passes through the bottom of the water reservoir 1 and is fixedly connected with a third gear 221 0, the second gear 2209 is meshed with the third gear 2210, the bottom of the water reservoir 1 is fixedly connected with a mounting plate 2211, one side of the mounting plate 2211 is fixedly connected with an electric telescopic rod 2212, the telescopic end of the electric telescopic rod 2212 is fixedly connected with the moving shell 2207, and by setting the stirring unit 22, when water enters the water reservoir 1, the rotation of the first rotating shaft 2201 will drive the first stirring blade 2202 to stir the water horizontally, and the rotation of the first rotating shaft 2201 will drive the first bevel gear 22 03 and the second bevel gear 2205 rotate, thereby driving the second rotating shaft 2204 to rotate, so that the second stirring blade 2206 stirs the water vertically, thereby achieving the effect of mixing the sewage and the powdered oxidant, and when the impact force of the water is insufficient, the electric telescopic rod 2212 can be started by an external control switch to move the moving shell 2207, so that the second gear 2209 is engaged with the third gear 2210, and then the motor 2208 is started, so that the first rotating shaft 2201 can be driven to rotate.

[0040] The surfaces of the first stirring blade 2202 and the second stirring blade 2206 are both provided with a through hole 2213, the inner cavity of the through hole 2213 is rotatably connected to a movable rod 2214, the surface of the movable rod 2214 is rotatably connected to a connecting rod 2215, the surface of the connecting rod 2215 is fixedly connected to a mounting blade 2216, and the number of the mounting blades 2216 is several. By setting the through hole 2213, the movable rod 2214, the connecting rod 2215 and the mounting blade 2216 for coordinated use, when the first stirring blade 2202 and the second stirring blade 2206 are rotated, the mounting blade 2216 and the connecting rod 2215 will be driven to rotate again, thereby mixing the water again.

[0041] The inner cavity of the through hole 2213 is fixedly connected with a spring piece 2217, one end of which is fixedly connected to the surface of the movable rod 2214. The spring piece 2217 is made of copper. By setting the spring piece 2217, when the first stirring blade 2202 and the second stirring blade 2206 rotate, the movable rod 2214 can be reset during rotation.

[0042] The tops of the two first rotating shafts 2201 and the rotating rod 2104 are fixedly connected with pulleys 2218, and the two adjacent pulleys 2218 are connected by belts 2219. By setting the pulleys 2218 and the belts 2219 for use together, when the water flow impacts the spiral blades 2105, it will drive the rotating rod 2104 to rotate, so that one of the pulleys 2218 will rotate, and the other pulleys 2218 will be driven to rotate through the belts 2219, thereby achieving the effect of driving the first rotating shaft 2201 to rotate.

[0043] The surfaces of the two first rotating shafts 2201 and the rotating rod 2104 are fixedly sleeved with bearings 2220, and the outer side of the outer ring of the bearing 2220 is fixedly connected to the inner wall of the water reservoir 1. By setting the bearing 2220, the friction between the first rotating shaft 2201 and the rotating rod 2104 and the inner wall of the water reservoir 1 is reduced, so that the first rotating shaft 2201 and the rotating rod 2104 can rotate better.

[0044] The inner cavity of the water reservoir 1 is fixedly connected with a support rod 2221, and the surface of the second rotating shaft 2204 is rotatably connected to the inner cavity of the support rod 2221. By setting a support plate 2106, the effect of supporting the second rotating shaft 2204 is achieved, thereby increasing the stability of the second rotating shaft 2204.

[0045] The specific implementation of this embodiment is as follows: when the water flow impacts the spiral blade 2105, it will drive the rotating rod 2104 to rotate, thereby causing one of the pulleys 2218 to rotate, and the other pulley 2218 to rotate through the belt 2219, thereby achieving the effect of driving the first rotating shaft 2201 to rotate, and the rotation of the first rotating shaft 2201 will drive the first stirring blade 2202 to stir the water horizontally, and while the first rotating shaft 2201 rotates, it will drive the first bevel gear 2203 and the second bevel gear 2205 to rotate, thereby driving the second rotating shaft 2204 to rotate, so that the second stirring blade 2206 stirs the water vertically, thereby achieving the effect of mixing the sewage and the powdered oxidant, and when the first stirring blade 2202 and the second stirring blade 2206 are rotated, the mounting blade 2216 and the connecting rod 2215 will be driven to rotate again, thereby mixing the water again.

[0046] Embodiment 3

[0047] See also Figure 1-11The present invention provides a technical solution: an oxidation pond for pretreatment of domestic sewage water. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. A feeding mechanism 3 is provided on the top of the water reservoir 1, and the feeding mechanism 3 is used to feed the powdered oxidant.

[0048] The feeding mechanism 3 includes a storage box 31 fixedly connected to the top of the water reservoir 1, the inner cavity of the storage box 31 is provided with a support tube 32, the inner cavity of the support tube 32 is rotatably connected with a rotating column 33, the surface of the rotating column 33 is fixedly connected with blades 34, the number of blades 34 is several, the inner cavity of the storage box 31 is fixedly connected with a fixing plate 35, the top of the fixing plate 35 is fixedly connected to the bottom of the support tube 32, the surface of the rotating column 33 is rotatably connected to the inner cavity of the fixing plate 35, the surface of the rotating column 33 is fixedly connected with teeth 36, the number of teeth 36 is several, the bottom of the fixing plate 35 is rotatably connected with a first gear 37, the number of first gears 37 is four, the surface of the first gear 37 is meshed with the teeth 36, and the bottom of the first gear 37 is provided with a feeding Hole 38, the feed hole 38 penetrates to the top of the fixed plate 35, the inner wall of the feed hole 38 is fixedly connected with a fixing rod 39, the bottom of the fixing rod 39 is fixedly connected with a spiral rod 310, the inner cavity of the storage box 31 is fixedly connected with a guide pipe 311, the inner wall of the guide pipe 311 contacts the surface of the spiral rod 310, and one end of the guide pipe 311 penetrates to the bottom of the storage box 31. By setting the feeding mechanism 3 and utilizing the impact force of the water discharged by the water inlet pipe 11, the blade 34 will drive the rotating column 33 to rotate, thereby driving the powder oxidant in the storage box 31 to enter the guide pipe 311, and the powder oxidant will be transported to the water guide shell 2101 through the rotation of the spiral rod 310, so that the powder oxidant and water are quickly mixed and mixed evenly.

[0049] A threaded rod 312 is threadedly connected to the top of the support tube 32, and a spring 313 is fixedly connected to one end of the threaded rod 312. A friction block 314 is fixedly connected to one end of the spring 313 and one end of the rotating column 33. The two friction blocks 314 are in contact with each other. By setting the threaded rod 312, the spring 313 and the friction block 314 for coordinated use, the threaded rod 312 is rotated to squeeze the spring 313, thereby increasing the friction between the two friction blocks 314. The rotation speed of the rotating column 33 can be adjusted by rotating the threaded rod 312, thereby adjusting the speed of powder oxidizer feeding.

[0050] The specific implementation of this embodiment is as follows: the impact force of water discharged from the water inlet pipe 11 will cause the blades 34 to drive the rotating column 33 to rotate, wherein the impacting water flow and the rotating column 33 are not on the same line, so that the blades 34 can rotate, thereby causing the teeth 36 to drive the first gear 37 to rotate, and the screw rod 310 is driven to rotate by the first gear 37. When the powder oxidant in the storage box 31 enters the guide pipe 311 through the feed hole 38, the powder oxidant is transported to the water guide shell 2101 through the rotation of the screw rod 310, so that the powder oxidant and water are quickly mixed and mixed evenly. By rotating the threaded rod 312, the spring 313 is squeezed, thereby increasing the friction between the two friction blocks 314. The rotation speed of the rotating column 33 can be adjusted by rotating the threaded rod 312, thereby adjusting the speed of powder oxidant discharge.

[0051] The working principle of the present invention is as follows: the impact force of water discharged from the water inlet pipe 11 causes the blade 34 to drive the rotating column 33 to rotate, thereby causing the teeth 36 to drive the first gear 37 to rotate, and the first gear 37 drives the spiral rod 310 to rotate. When the powder oxidant in the storage box 31 enters the guide pipe 311 through the feed hole 38, the powder oxidant is transported to the water guide shell 2101 through the rotation of the spiral rod 310, so that the powder oxidant and water are quickly mixed and mixed evenly. The threaded rod 312 rotates, so that the spring 313 is squeezed, thereby increasing the friction between the two friction blocks 314. The rotation speed of the rotating column 33 can be adjusted by rotating the threaded rod 312, thereby adjusting the speed of the powder oxidant feeding. After the sewage is discharged into the water guide shell 2101 through the water inlet pipe 11, the sewage and the powder oxidant will enter the inner cavity of the spiral shell 2102. The shape of the spiral shell 2102 can impact the spiral blade 2105, so that the rotating rod 2104 rotates quickly. When the blade 2105 rotates rapidly, the mixed water will enter the water reservoir 1 through the water leakage port 2103, so that the powder oxidant and water can be pre-mixed. When the water flow hits the spiral blade 2105, it will drive the rotating rod 2104 to rotate, so that one of the pulleys 2218 rotates, and the other pulleys 2218 rotate through the belt 2219, so as to achieve the effect of driving the first rotating shaft 2201 to rotate. The rotation of the first rotating shaft 2201 will drive the first stirring blade 2202 The water is stirred horizontally, and the first rotating shaft 2201 rotates while driving the first bevel gear 2203 and the second bevel gear 2205 to rotate, thereby driving the second rotating shaft 2204 to rotate, so that the second stirring blade 2206 stirs the water vertically, thereby achieving the effect of stirring the sewage and the powdered oxidant. When the first stirring blade 2202 and the second stirring blade 2206 rotate, the mounting blade 2216 and the connecting rod 2215 are driven to rotate again, thereby mixing the water again.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oxidation pond for pre-treatment of domestic sewage, comprising a water reservoir (1), one side of the water reservoir (1) is fixedly connected to a water inlet pipe (11), the water inlet pipe (11) is arranged in an L shape, the other side of the water reservoir (1) is fixedly connected to a drain pipe (12), the inner cavity of the water reservoir (1) is provided with an aeration pipe (13), characterized in that: The inner cavity of the water reservoir (1) is provided with a mixing mechanism (2), and the top of the water reservoir (1) is provided with a feeding mechanism (3), and the feeding mechanism (3) is used to feed the powdered oxidant; The mixing mechanism (2) comprises a premixing unit (21), wherein the premixing unit (21) is arranged in the inner cavity of the water reservoir (1), and the premixing unit (21) is used to premix the powdered oxidant and water; The mixing mechanism (2) further comprises a stirring unit (22), the stirring unit (22) being used in conjunction with the pre-mixing unit (21), the stirring unit (22) being arranged in the inner cavity of the water reservoir (1), and the stirring unit (22) being used to stir the powdered oxidant and water evenly.

2. The oxidation pond for pretreatment of domestic sewage according to claim 1, characterized in that: The premixing unit (21) comprises a water guide shell (2101) fixedly connected to the inner cavity of a water reservoir (1); a spiral shell (2102) is fixedly connected to one side of the water guide shell (2101); the water guide shell (2101) is in communication with the spiral shell (2102); a water leakage port (2103) is provided in the inner cavity of the spiral shell (2102); a rotating rod (2104) is rotatably connected to the inner cavity of the water reservoir (1); a spiral blade (2105) is fixedly connected to the surface of the rotating rod (2104); a plurality of spiral blades (2105) are provided; the spiral blades (2105) are located in the inner cavity of the spiral shell (2102); a support plate (2106) is fixedly connected to the bottom of the water guide shell (2101); and the bottom of the support plate (2106) is fixedly connected to the inner wall of the water reservoir (1).

3. The oxidation pond for pretreatment of domestic sewage water according to claim 2, characterized in that: The stirring unit (22) comprises a first rotating shaft (2201) rotatably connected to the inner cavity of the water reservoir (1), the number of the first rotating shafts (2201) is two, the surface of the first rotating shaft (2201) is fixedly connected with a first stirring blade (2202), the number of the first stirring blades (2202) is multiple, the surface of the first rotating shaft (2201) is fixedly connected with a first bevel gear (2203), the inner cavity of the water reservoir (1) is rotatably connected with four second rotating shafts (2204), one end of the second rotating shaft (2204) is fixedly connected with a second bevel gear (2205), the second bevel gear (2205) is meshed with the first bevel gear (2203), the surface of the second rotating shaft (2204) is fixedly connected with a second stirring blade (2206), the The number of the second stirring blades (2206) is several, the bottom of the water reservoir (1) is slidably connected to a moving shell (2207), the inner cavity of the moving shell (2207) is fixedly connected to a motor (2208), the output end of the motor (2208) is fixedly connected to a second gear (2209), one end of one of the first rotating shafts (2201) passes through the bottom of the water reservoir (1) and is fixedly connected to a third gear (2210), the second gear (2209) is meshed with the third gear (2210), the bottom of the water reservoir (1) is fixedly connected to a mounting plate (2211), one side of the mounting plate (2211) is fixedly connected to an electric telescopic rod (2212), the telescopic end of the electric telescopic rod (2212) is fixedly connected to the moving shell (2207).

4. The oxidation pond for pretreatment of domestic sewage water according to claim 3, characterized in that: The surfaces of the first stirring blade (2202) and the second stirring blade (2206) are both provided with through holes (2213), the inner cavity of the through hole (2213) is rotatably connected to a movable rod (2214), the surface of the movable rod (2214) is rotatably connected to a connecting rod (2215), the surface of the connecting rod (2215) is fixedly connected to a mounting blade (2216), and the number of the mounting blades (2216) is multiple.

5. The oxidation pond for pretreatment of domestic sewage water according to claim 4, characterized in that: The inner cavity of the through hole (2213) is fixedly connected with a spring piece (2217), one end of the spring piece (2217) is fixedly connected to the surface of the movable rod (2214), and the spring piece (2217) is made of copper.

6. The oxidation pond for pretreatment of domestic sewage water according to claim 3, characterized in that: The tops of the two first rotating shafts (2201) and the rotating rod (2104) are fixedly connected with pulleys (2218), and two adjacent pulleys (2218) are connected by belts (2219).

7. The oxidation pond for pretreatment of domestic sewage water according to claim 3, characterized in that: The surfaces of the two first rotating shafts (2201) and the rotating rod (2104) are both fixedly sleeved with bearings (2220), and the outer sides of the outer rings of the bearings (2220) are fixedly connected to the inner wall of the water reservoir (1).

8. The oxidation pond for pretreatment of domestic sewage water according to claim 3, characterized in that: The inner cavity of the water reservoir (1) is fixedly connected to a support rod (2221), and the surface of the second rotating shaft (2204) is rotatably connected to the inner cavity of the support rod (2221).

9. The oxidation pond for pretreatment of domestic sewage according to claim 1, characterized in that: The feeding mechanism (3) comprises a storage box (31) fixedly connected to the top of the water reservoir (1); the inner cavity of the storage box (31) is provided with a support tube (32); the inner cavity of the support tube (32) is rotatably connected to a rotating column (33); the surface of the rotating column (33) is fixedly connected to blades (34); the number of the blades (34) is multiple; the inner cavity of the storage box (31) is fixedly connected to a fixing plate (35); the top of the fixing plate (35) is fixedly connected to the bottom of the support tube (32); the surface of the rotating column (33) is rotatably connected to the inner cavity of the fixing plate (35); the surface of the rotating column (33) is fixedly connected to teeth (36); the number of the teeth (36) is multiple; the fixing plate (35) is fixedly connected to the inner cavity of the storage box (31); the top of the fixing plate (35) is fixedly connected to the bottom of the support tube (32); the surface of the rotating column (33) is rotatably connected to the inner cavity of the fixing plate (35); the surface of the rotating column (33) is fixedly connected to teeth (36); the number of the teeth (36) is multiple; The bottom of the fixed plate (35) is rotatably connected to a first gear (37), the number of the first gears (37) is four, the surface of the first gears (37) is meshed with the teeth (36), a feed hole (38) is opened at the bottom of the first gear (37), the feed hole (38) penetrates to the top of the fixed plate (35), the inner wall of the feed hole (38) is fixedly connected to a fixed rod (39), the bottom of the fixed rod (39) is fixedly connected to a spiral rod (310), the inner cavity of the storage box (31) is fixedly connected to a material guide pipe (311), the inner wall of the material guide pipe (311) is in contact with the surface of the spiral rod (310), and one end of the material guide pipe (311) penetrates to the bottom of the storage box (31).

10. The oxidation pond for pretreatment of domestic sewage according to claim 9, characterized in that: The top of the support tube (32) is threadedly connected to a threaded rod (312), one end of the threaded rod (312) is fixedly connected to a spring (313), one end of the spring (313) and one end of the rotating column (33) are both fixedly connected to a friction block (314), and the two friction blocks (314) are in contact with each other.

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