An oxidation pond for pretreatment of domestic sewage

Abstract

The present invention relates to the technical field of oxidation ponds, and specifically relates to an oxidation pond for pretreatment of domestic sewage. The technical problem to be solved by the present invention is that powder oxidants usually need to be manually sprinkled into water, resulting in the inability of the powder oxidants to be evenly mixed in the oxidation pond. The technical solution is as follows: An oxidation pond for pretreatment of domestic sewage is provided, including a reservoir, and a water inlet pipe is fixedly communicated with one side of the reservoir. The beneficial effect of the present invention is that by using the pre-mixing unit and the stirring unit in cooperation, after the sewage is discharged into the water guide shell, the sewage will enter the inner cavity of the spiral shell. Through the shape setting of the spiral shell, an impact can be generated on the spiral blade, causing the rotating rod to rotate rapidly, thereby realizing the pre-mixing of the powder oxidant and water. When the water enters the reservoir, the water can be quickly mixed through the stirring unit, so that the sewage and the powder oxidant can be quickly mixed.

Description

Technical Field

[0001] The present invention relates to the technical field of oxidation ponds, and specifically to an oxidation pond for pretreatment of domestic sewage water. Background Art

[0002] Domestic sewage refers to the water used in people's daily lives and then discharged. When making domestic sewage into drinking water, ozone and powdered oxidants need to be added to the oxidation pond to decompose refractory organic matter and improve the water quality to a higher standard. When the existing oxidation pond treats sewage, powdered oxidants need to be sprinkled into the oxidation pond. Usually, the powdered oxidants need to be manually sprinkled into the water, and it is not convenient to stir the water, resulting in the powdered oxidants not being evenly mixed in the oxidation pond, thus affecting the efficiency of sewage treatment.

[0003] Combining the above problems, we will find that it is very difficult to avoid the above-mentioned problems simultaneously when the existing oxidation ponds on the market are in use. And even if they can be solved, external tools need to be used for cooperation to solve them, thus unable to achieve the desired effect. Therefore, we propose an oxidation pond for pretreatment of domestic sewage water. Summary of the Invention

[0004] The purpose of the present invention is to provide an oxidation pond for pretreatment of domestic sewage water to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An oxidation pond for pretreatment of domestic sewage water, including a water storage tank. One side of the water storage tank is fixedly communicated with a water inlet pipe, and the water inlet pipe is arranged in an L shape. The other side of the water storage tank is fixedly communicated with a drain pipe. An air diffuser pipe is arranged in the inner cavity of the water storage tank. A mixing mechanism is arranged in the inner cavity of the water storage tank. A feeding mechanism is arranged on the top of the water storage tank, and the feeding mechanism is used for feeding powdered oxidants.

[0006] The mixing mechanism includes a pre-mixing unit, which is arranged in the inner cavity of the water storage tank and is used for pre-mixing powdered oxidants and water.

[0007] The mixing mechanism further includes a stirring unit, which is used in cooperation with the pre-mixing unit and is arranged in the inner cavity of the water storage tank. The stirring unit is used for stirring the powdered oxidants and water evenly.

[0008] Preferably, the premixing unit includes a water guide shell fixedly connected to the inner cavity of the water storage tank. One side of the water guide shell is fixedly connected with a spiral shell. The water guide shell is communicated with the spiral shell. A water leakage port is formed in the inner cavity of the spiral shell. A rotating rod is rotatably connected to the inner cavity of the water storage tank. A spiral blade is fixedly connected to the surface of the rotating rod. The number of the spiral blades is several. The spiral blades are located in the inner cavity of the spiral shell. A support plate is fixedly connected to the bottom of the water guide shell. The bottom of the support plate is fixedly connected with the inner wall of the water storage tank.

[0009] Preferably, the stirring unit includes two first rotating shafts rotatably connected to the inner cavity of the water storage tank. First stirring blades are fixedly connected to the surfaces of the first rotating shafts. The number of the first stirring blades is several. First bevel gears are fixedly connected to the surfaces of the first rotating shafts. Four second rotating shafts are rotatably connected to the inner cavity of the water storage tank. A second bevel gear is fixedly connected to one end of each second rotating shaft. The second bevel gears are meshed with the first bevel gears. Second stirring blades are fixedly connected to the surfaces of the second rotating shafts. The number of the second stirring blades is several. A moving shell is slidably connected to the bottom of the water storage tank. A motor is fixedly connected to the inner cavity of the moving shell. An output end of the motor is fixedly connected with a second gear. One end of one of the first rotating shafts penetrates through the bottom of the water storage tank and is fixedly connected with a third gear. The second gear is meshed with the third gear. A mounting plate is fixedly connected to the bottom of the water storage tank. An electric telescopic rod is fixedly connected to one side of the mounting plate. A telescopic end of the electric telescopic rod is fixedly connected with the moving shell.

[0010] Preferably, through holes are formed in the surfaces of the first stirring blades and the second stirring blades. A movable rod is rotatably connected to the inner cavity of each through hole. A connecting rod is rotatably connected to the surface of the movable rod. A plurality of mounting blades are fixedly connected to the surface of the connecting rod.

[0011] Preferably, elastic sheets are fixedly connected to the inner cavities of the through holes. One end of each elastic sheet is fixedly connected to the surface of the movable rod. The elastic sheets are made of copper.

[0012] Preferably, pulleys are fixedly connected to the tops of the two first rotating shafts and the rotating rod. Adjacent pulleys are connected by belts.

[0013] Preferably, bearings are fixedly sleeved on the surfaces of the two first rotating shafts and the rotating rod. The outer sides of the outer rings of the bearings are fixedly connected with the inner walls of the water storage tank.

[0014] Preferably, a support rod is fixedly connected to the inner cavity of the water storage tank. 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 bin fixedly connected to the top of the reservoir. A support pipe is arranged in the inner cavity of the storage bin. A rotating column is rotatably connected to the inner cavity of the support pipe. Blades are fixedly connected to the surface of the rotating column. The number of the blades is several. A fixing plate is fixedly connected to the inner cavity of the storage bin. The top of the fixing plate is fixedly connected to the bottom of the support pipe. The surface of the rotating column is rotatably connected to the inner cavity of the fixing plate. Teeth are fixedly connected to the surface of the rotating column. The number of the teeth is several. Four first gears are rotatably connected to the bottom of the fixing plate. The surface of the first gears meshes with the teeth. Feeding holes are formed in the bottoms of the first gears and penetrate through to the top of the fixing plate. A fixing rod is fixedly connected to the inner wall of the feeding hole. A spiral rod is fixedly connected to the bottom of the fixing rod. A guiding pipe is fixedly connected to the inner cavity of the storage bin. The inner wall of the guiding pipe contacts with the surface of the spiral rod. One end of the guiding pipe penetrates through the bottom of the storage bin.

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

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By using the pre-mixing unit and the stirring unit in cooperation, after the sewage is discharged into the water guide shell, the sewage will enter the inner cavity of the spiral shell. Through the shape setting of the spiral shell, the spiral blades can be impacted, causing the rotating rod to rotate rapidly, thereby realizing the pre-mixing of the powdered oxidant and water. When the water enters the reservoir, the water can be quickly mixed through the stirring unit, so that the sewage can be quickly mixed.

[0019] 2. By using the feeding mechanism of the present invention, the impact force of the discharged water through the water inlet pipe will cause the blades to drive the rotating column to rotate, thereby driving the powdered oxidant in the storage bin into the guiding pipe. The rotating spiral rod will transport the powdered oxidant to the water guide shell, so that the powdered oxidant and water can be quickly mixed. 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 reservoir, the motor and the moving shell of the present invention;

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

[0023] Figure 4Schematic structural diagram of the water guide shell and the spiral shell of the present invention;

[0024] Figure 5 Schematic structural diagram of the spiral blade and the first stirring blade of the present invention;

[0025] Figure 6 Schematic structural diagram of the second stirring blade and the first stirring blade of the present invention;

[0026] Figure 7 Schematic structural diagram of the movable rod and the blade of the present invention;

[0027] Figure 8 Schematic structural diagram of the fixing plate, the blade and the support pipe of the present invention;

[0028] Figure 9 Schematic cross-sectional view of the storage tank and the rotating rod of the present invention;

[0029] Figure 10 For the present invention Figure 9 Partial enlarged view of position A in;

[0030] Figure 11 For the present invention Figure 9 Partial enlarged view of position B in.

[0031] In the figure: 1, water storage tank; 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; 2211, mounting plate; 2212, electric telescopic rod; 2213, through hole; 2214, movable rod; 2215, connecting rod; 2216, mounting blade; 2217, elastic sheet; 2218, pulley; 2219, belt; 2220, bearing; 2221, support rod; 3, feeding mechanism; 31, storage tank; 32, support pipe; 33, rotating column; 34, blade; 35, fixing plate; 36, tooth; 37, first gear; 38, feeding hole; 39, fixing rod; 310, spiral rod; 311, guide pipe; 312, threaded rod; 313, spring; 314, friction block. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. 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 protection scope of the present invention.

[0033] Embodiment 1

[0034] Please refer to Figures 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 reservoir 1. One side of the reservoir 1 is fixedly connected and communicated with a water inlet pipe 11. The water inlet pipe 11 is arranged in an L shape. The other side of the reservoir 1 is fixedly connected and communicated with a drain pipe 12. An air diffuser pipe 13 is arranged in the inner cavity of the reservoir 1. Among them, one end of the air diffuser pipe 13 penetrates to the outside of the reservoir 1 for transporting external ozone into the reservoir 1. This is the prior art and will not be elaborated too much. A mixing mechanism 2 is arranged in the inner cavity of the reservoir 1. The mixing mechanism 2 includes a pre-mixing unit 21. The pre-mixing unit 21 is arranged in the inner cavity of the reservoir 1 and is used for pre-mixing the powdered oxidant and water. The powdered oxidant generally adopts hydrogen peroxide powder and potassium ferrate powder.

[0035] As a further limitation of the mixing mechanism 2 of the present invention, the pre-mixing unit 21 includes a water guiding shell 2101 fixedly connected to the inner cavity of the reservoir 1. One side of the water guiding shell 2101 is fixedly connected with a spiral shell 2102. The water guiding shell 2101 is communicated with the spiral shell 2102. A water leakage port 2103 is opened in the inner cavity of the spiral shell 2102. A rotating rod 2104 is rotatably connected to the inner cavity of the reservoir 1. A spiral blade 2105 is fixedly connected to the surface of the rotating rod 2104. The number of the spiral blades 2105 is several. The spiral blades 2105 are located in the inner cavity of the spiral shell 2102. The bottom of the water guiding shell 2101 is fixedly connected with a support plate 2106. The bottom of the support plate 2106 is fixedly connected with the inner wall of the 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 blades 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 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, an impact can be generated on the spiral blade 2105, causing the rotating rod 2104 to rotate rapidly. When the spiral blade 2105 rotates rapidly, the mixed water will enter the reservoir 1 through the water leakage port 2103, so as to pre-mix the powdered oxidant and water.

[0037] Embodiment 2

[0038] Please refer to Figures 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 art. The mixing mechanism 2 further includes a stirring unit 22, and the stirring unit 22 is used in cooperation with the pre-mixing unit 21. The stirring unit 22 is arranged in the inner cavity of the reservoir 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 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. Four second rotating shafts 2204 are rotatably connected to the inner cavity of the reservoir 1. One end of the second rotating shaft 2204 is fixedly connected with a second bevel gear 2205. The second bevel gear 2205 meshes 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 blades 2206 is several. A moving shell 2207 is slidably connected to the bottom of the reservoir 1. A motor 2208 is fixedly connected to the inner cavity of the moving shell 2207. 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 penetrates through the bottom of the reservoir 1 and is fixedly connected with a third gear 2210. The second gear 2209 meshes with the third gear 2210. A mounting plate 2211 is fixedly connected to the bottom of the reservoir 1. An electric telescopic rod 2212 is fixedly connected to one side of the mounting plate 2211. The telescopic end of the electric telescopic rod 2212 is fixedly connected with the moving shell 2207. By setting the stirring unit 22, after water enters the reservoir 1, the rotation of the first rotating shaft 2201 will drive the first stirring blade 2202 to stir the water horizontally. At the same time, when 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, so as to achieve the effect of stirring the sewage and the powdered oxidant. When the impact force of the water is insufficient, the electric telescopic rod 2212 can be started through an external control switch, so that the moving shell 2207 moves, so that the second gear 2209 meshes with the third gear 2210, and then the motor 2208 is started, so as to drive the first rotating shaft 2201 to rotate.

[0040] Through holes 2213 are formed on the surfaces of both the first stirring blade 2202 and the second stirring blade 2206. A movable rod 2214 is rotatably connected to the inner cavity of the through hole 2213. A connecting rod 2215 is rotatably connected to the surface of the movable rod 2214. A mounting blade 2216 is fixedly connected to the surface of the connecting rod 2215. The number of the mounting blades 2216 is several. By setting the cooperation of the through holes 2213, the movable rod 2214, the connecting rod 2215 and the mounting blades 2216, when the first stirring blade 2202 and the second stirring blade 2206 rotate, they will drive the mounting blades 2216 and the connecting rod 2215 to rotate again, so as to mix 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, thereby causing one of the pulleys 2218 to rotate, and the belts 2219 drive the other pulleys 2218 to rotate, 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 providing 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 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. By setting a support plate 2106, the second rotating shaft 2204 is supported, 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. 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 stirring the sewage and the powdered oxidant evenly. 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] Example 3

[0047] See also Figures 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. A feeding mechanism 3 is arranged on the top of the reservoir 1, and the feeding mechanism 3 is used for feeding the powdered oxidant.

[0048] The feeding mechanism 3 includes a storage box 31 fixedly connected to the top of the reservoir 1. A support pipe 32 is arranged in the inner cavity of the storage box 31. A rotating column 33 is rotatably connected to the inner cavity of the support pipe 32. A plurality of blades 34 are fixedly connected to the surface of the rotating column 33. A 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 pipe 32. The surface of the rotating column 33 is rotatably connected to the inner cavity of the fixing plate 35. A plurality of teeth 36 are fixedly connected to the surface of the rotating column 33. Four first gears 37 are rotatably connected to the bottom of the fixing plate 35. The surface of the first gear 37 is engaged with the teeth 36. A feeding hole 38 is opened at the bottom of the first gear 37, and the feeding hole 38 penetrates to the top of the fixing plate 35. A fixing rod 39 is fixedly connected to the inner wall of the feeding hole 38. A spiral rod 310 is fixedly connected to the bottom of the fixing rod 39. A guide pipe 311 is fixedly connected to the inner cavity of the storage box 31. The inner wall of the guide pipe 311 is in contact with the surface of the spiral rod 310. One end of the guide pipe 311 penetrates to the bottom of the storage box 31. By arranging the feeding mechanism 3, the impact force of the water discharged through the water inlet pipe 11 will cause the blades 34 to drive the rotating column 33 to rotate, so as to drive the powdered oxidant in the storage box 31 into the guide pipe 311. The rotation of the spiral rod 310 will transport the powdered oxidant to the water guide shell 2101, so that the powdered oxidant and water are quickly mixed and evenly mixed.

[0049] A threaded rod 312 is threadedly connected to the top of the support pipe 32. 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. The two friction blocks 314 are in contact with each other. By arranging the cooperation of the threaded rod 312, the spring 313 and the friction block 314, by rotating the threaded rod 312, the spring 313 is compressed, so as to increase the friction force between the two friction blocks 314. By rotating the threaded rod 312, the rotation speed of the rotating column 33 can be adjusted, so as to adjust the feeding speed of the powdered oxidant.

[0050] The specific implementation of this embodiment is as follows: By utilizing the impact force of the water discharged from the water inlet pipe 11, the blade 34 will drive the rotating column 33 to rotate. Among them, the impact water flow and the rotating column 33 are not on the same line, enabling the blade 34 to rotate, and thus enabling the tooth 36 to drive the first gear 37 to rotate. The first gear 37 drives the screw rod 310 to rotate. When the powdered oxidant in the storage tank 31 enters the guide pipe 311 through the feed hole 38, the rotation of the screw rod 310 will transport the powdered oxidant to the water guide shell 2101, thereby enabling the powdered oxidant to be quickly mixed with water and evenly mixed. By rotating the threaded rod 312, the spring 313 is compressed, thereby increasing the friction force 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 feeding speed of the powdered oxidant.

[0051] The working principle of the present invention is as follows: By utilizing the impact force of the water discharged from the water inlet pipe 11, the blade 34 will drive the rotating column 33 to rotate, thereby enabling the tooth 36 to drive the first gear 37 to rotate. The first gear 37 drives the screw rod 310 to rotate. When the powdered oxidant in the storage tank 31 enters the guide pipe 311 through the feed hole 38, the rotation of the screw rod 310 will transport the powdered oxidant to the water guide shell 2101, so that the powdered oxidant and water are quickly mixed and evenly mixed. By rotating the threaded rod 312, the spring 313 is compressed, thereby increasing the friction force between the two friction blocks 314. The rotation speed of the rotating column 33 can be adjusted by rotating the threaded rod 312, so as to adjust the feeding speed of the powdered oxidant. After the sewage is discharged into the water guide shell 2101 through the water inlet pipe 11, the sewage and the powdered oxidant will enter the inner cavity of the spiral shell 2102. Due to the shape setting of the spiral shell 2102, an impact can be generated on the spiral blade 2105, causing the rotating rod 2104 to rotate rapidly. When the spiral blade 2105 rotates rapidly, the mixed water will enter the reservoir 1 through the water leakage port 2103, so that the powdered oxidant and water can be pre-mixed. When the water flow impacts on the spiral blade 2105, it will drive the rotating rod 2104 to rotate, thereby causing one of the belt pulleys 2218 to rotate. The other belt pulleys 2218 are driven to rotate through the belt 2219, so as to drive the first rotating shaft 2201 to rotate. The rotation of the first rotating shaft 2201 will drive the first stirring blade 2202 to stir the water horizontally, and at the same time, when 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, so as to achieve the effect of stirring the sewage and the powdered oxidant evenly. When the first stirring blade 2202 and the second stirring blade 2206 rotate, they will drive the mounting blade 2216 and the connecting rod 2215 to rotate again, so as to mix the water again.

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

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and 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 water, 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), and the inner cavity of the water reservoir (1) is provided with an aeration pipe (13), characterized in that: The inner cavity of the reservoir (1) is provided with a mixing mechanism (2), and the top of the reservoir (1) is provided with a feeding mechanism (3) for feeding the powdered oxidant. The mixing mechanism (2) includes a pre-mixing unit (21) disposed in the inner cavity of the reservoir (1) for pre-mixing the powdered oxidant and water. The pre-mixing unit (21) includes a water guide shell (2101) fixedly connected to the inner cavity of the reservoir (1). One side of the water guide shell (2101) is fixedly connected to a spiral shell (2102). The water guide shell (2101) communicates 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 reservoir (1), and a spiral blade (2105) is fixedly connected to the surface of the rotating rod (2104). The feeding mechanism (3) includes a storage tank (31) fixedly connected to the top of the reservoir (1). A support pipe (32) is disposed in the inner cavity of the storage tank (31). A rotating column (33) is rotatably connected to the inner cavity of the support pipe (32). A plurality of blades (34) are fixedly connected to the surface of the rotating column (33). A fixing plate (35) is fixedly connected to the inner cavity of the storage tank (31). The top of the fixing plate (35) is fixedly connected to the bottom of the support pipe (32). The surface of the rotating column (33) is rotatably connected to the inner cavity of the fixing plate (35). A plurality of teeth (36) are fixedly connected to the surface of the rotating column (33). Four first gears (37) are rotatably connected to the bottom of the fixing plate (35). The surfaces of the first gears (37) are engaged with the teeth (36). A feed hole (38) is provided at the bottom of the first gear (37) and penetrates through to the top of the fixing plate (35). A fixing rod (39) is fixedly connected to the inner wall of the feed hole (38). A spiral rod (310) is fixedly connected to the bottom of the fixing rod (39). A guide pipe (311) is fixedly connected to the inner cavity of the storage tank (31). The inner wall of the guide pipe (311) contacts the surface of the spiral rod (310). One end of the guide pipe (311) penetrates through the bottom of the storage tank (31). A threaded rod (312) is threadedly connected to the top of the support pipe (32). 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.

2. An oxidation pond for pretreatment of domestic sewage water according to claim 1, characterized in that: The mixing mechanism (2) further includes a stirring unit (22), which is used in cooperation with the premixing unit (21). The stirring unit (22) is arranged in the inner cavity of the reservoir (1), and is used to stir the powdered oxidant and water. The number of the spiral vanes (2105) is several, and the spiral vanes (2105) are located in the inner cavity of the spiral housing (2102). The bottom of the water guide housing (2101) is fixedly connected with a support plate (2106), and the bottom of the support plate (2106) is fixedly connected with the inner wall of the reservoir (1).

3. An oxidation pond for pretreatment of domestic sewage water according to claim 2, characterized in that: The stirring unit (22) includes a first rotating shaft (2201) rotatably connected to the inner cavity of the 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). Four second rotating shafts (2204) are rotatably connected to the inner cavity of the reservoir (1). One end of the second rotating shaft (2204) is fixedly connected with a second bevel gear (2205). The second bevel gear (2205) meshes 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 blades (2206) is several. A moving housing (2207) is slidably connected to the bottom of the reservoir (1). A motor (2208) is fixedly connected to the inner cavity of the moving housing (2207). 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) penetrates through the bottom of the reservoir (1) and is fixedly connected with a third gear (2210). The second gear (2209) meshes with the third gear (2210). A mounting plate (2211) is fixedly connected to the bottom of the reservoir (1). 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 housing (2207).

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

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

6. The oxidation pond for pretreatment of domestic sewage water according to claim 3, characterized in that: Pulley wheels (2218) are fixedly connected to the tops of the two first rotating shafts (2201) and the rotating rod (2104), and adjacent pulley wheels (2218) are connected by a belt (2219) for transmission connection.

7. An oxidation pond for pre - treating domestic sewage water according to claim 3, characterized in that: Bearings (2220) are fixedly sleeved on the surfaces of the two first rotating shafts (2201) and the rotating rod (2104), and the outer sides of the outer rings of the bearings (2220) are fixedly connected to the inner wall of the water storage tank (1).

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

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