A sewage treatment sedimentation tank disinfection equipment

Abstract

The invention discloses a sewage treatment sedimentation tank disinfection device, which relates to the technical field of sewage treatment, comprising: a sedimentation tank body and a cross bridge erected on the sedimentation tank body, a dosing assembly is further arranged at the center of the sedimentation tank body, the sedimentation tank body comprises an outer circle concrete enclosure and an inner circle water reservoir, a clean water trough is arranged on the top of the concrete enclosure, the water reservoir is arranged in a circular shape, which is convenient for accumulating sewage, the dosing assembly comprises a central supporting shaft, a hollow disc is rotatably mounted on the supporting shaft, dosing cantilevers are symmetrically arranged on both sides of the hollow disc for delivering liquid medicine, and the length of the dosing cantilever is less than the radius of the water reservoir, and the present application can push two dosing cantilevers to rotate continuously on the water reservoir as the hollow disc rotates, and the liquid medicine released downward by the dosing cantilever can be evenly spread on the water reservoir, thereby ensuring uniform dosing, facilitating the disinfection of sewage and accelerating flocculation.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and more specifically, to a sewage treatment sedimentation tank disinfection device. Background Art

[0002] A sedimentation tank is a structure that uses sedimentation to remove suspended matter from water. It is widely used in wastewater treatment and is one of the most important components in a sewage treatment system. Static sedimentation of sewage and water quality testing are key links in determining the effectiveness of sewage treatment. However, in order to enhance the sedimentation effect of sewage, disinfectants and flocculants are usually added to the sedimentation tank.

[0003] Usually, sedimentation tanks have a larger surface area in order to increase sewage capacity. However, when adding disinfection and flocculation agents into the sedimentation tank, it is difficult to ensure uniform delivery of the agents, which can easily affect the effect of sewage sedimentation. Based on the above problems, we provide a sewage treatment sedimentation tank disinfection equipment. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a sewage treatment sedimentation tank disinfection equipment.

[0005] The sewage treatment sedimentation tank disinfection equipment provided by the present invention adopts the following technical scheme:

[0006] A sewage treatment sedimentation tank disinfection device comprises: a sedimentation tank body and a cross bridge erected on the sedimentation tank body, and a dosing assembly is also arranged at the center of the sedimentation tank body;

[0007] The sedimentation tank body includes an outer concrete enclosure and an inner water reservoir. A clean water trough is set on the top of the concrete enclosure. The water reservoir is set in a circular shape to facilitate the accumulation of sewage.

[0008] The dosing assembly includes a central support shaft, a hollow disc is rotatably mounted on the support shaft, and dosing cantilevers are symmetrically mounted on both sides of the hollow disc for dosing liquid medicine, and the length of the dosing cantilever is less than the radius of the water reservoir;

[0009] Among them, the interior of the dosing cantilever is also equipped with a guide groove, in which a spiral auger rod is rotatably installed, and the outer port of the guide groove is open. A channel for the circulation of the medicine liquid is reserved between the guide groove and the two side walls of the dosing cantilever, and a lower medicine groove is also provided on the bottom wall of the channel. Multiple connecting ports are provided on both sides of the guide groove near one end of the support shaft.

[0010] Preferably, an auxiliary bevel gear fixedly mounted on the support shaft is further provided inside the hollow disc, and a rolling bevel gear is also installed on the end of the spiral auger rod penetrating into the hollow disc, and the rolling bevel gear is meshed with the auxiliary bevel gear.

[0011] Preferably, the support shaft is also rotatably mounted with a gear plate, the gear plate is arranged above the hollow disc, and a plurality of linkage rods are arranged between the gear plate and the hollow disc, a bracket seat is also mounted on the top of the support shaft, a driving motor is installed at the bottom of the bracket seat, a driving gear is installed on the output shaft of the driving motor, and the driving gear is meshed with the gear plate.

[0012] Preferably, a drug delivery tube is suspended above the drug delivery cantilever, and a fixed support for fixing and supporting the drug delivery tube is installed on the top of the drug delivery cantilever, and a drug adding component is docked on the top of the drug delivery tube.

[0013] Preferably, the medicine adding component comprises a circular medicine loading tray, a waterproof bearing is installed on the bottom of the medicine loading tray, a transfer tube is installed in the waterproof bearing, and the tops of the two medicine delivery tubes are both connected to the transfer tube.

[0014] Preferably, the drug adding component comprises a ring-shaped drug loading dish, which is fixedly mounted on the top of the two drug delivery tubes, and the drug loading dish is connected to the drug delivery tubes.

[0015] Preferably, a funnel-shaped sand collecting pool is installed at the bottom of the water reservoir, a sand outlet is provided at the bottom center of the sand collecting pool, and a sand discharge pipe is installed at the bottom of the sand outlet. A seepage trough flush with the clean water trough is also provided on the inner wall of the water reservoir, and a drainage pipe is connected to the outside of the concrete enclosure, and the inner end of the drainage pipe extends into the clean water trough.

[0016] Preferably, a hollow sleeve is also installed at the bottom of the hollow disc, the bottom end of the hollow sleeve extends into the lower sand outlet, and three sand gathering plates arranged in a circular array are installed on the hollow sleeve. The sand gathering plates are provided with a certain curvature from bottom to top, and the curvature direction is consistent with the rotation direction of the hollow sleeve.

[0017] Preferably, three stirring paddles arranged in a circular array are also installed on the hollow sleeve, and the ends of the stirring paddles facing the hollow sleeve are respectively connected to a rotating shaft and a limiting shaft, the rotating shaft is arranged above the limiting shaft, and a torsion spring is also mounted on the rotating shaft, the two ends of the torsion spring are respectively connected to the stirring paddle and the hollow sleeve, and a guide groove for the limiting shaft to slide is opened on the side of the hollow sleeve.

[0018] Preferably, a plurality of mixing grooves are evenly spaced on the stirring blade, the mixing grooves are arranged at a lower position on the stirring blade, and a spoiler is rotatably installed in the mixing grooves.

[0019] In summary, the present invention includes the following beneficial technical effects:

[0020] 1. In the present application, two dosing cantilevers are symmetrically arranged on the hollow disc. As the hollow disc rotates, the two dosing cantilevers can be pushed to rotate continuously on the water reservoir, and the liquid medicine released downward by the dosing cantilever can be evenly spread on the water reservoir, ensuring uniform dosing, facilitating the disinfection of sewage and accelerating flocculation.

[0021] 2. The present application also provides a guide groove in the dosing cantilever, in which a spiral auger rod is installed. After the medicine liquid enters the guide groove, it is pushed into the dosing cantilever by the action of the spiral auger rod, and then the medicine liquid can return to the guide groove through the connecting port for circulation. While flowing, the medicine liquid can be further mixed evenly. When the medicine liquid needs to be released later, the medicine liquid can also flow downward along the lower medicine groove and be released into the water reservoir.

[0022] 3. The present application also installs a sand collecting plate on the bottom end of the hollow casing, and the sand collecting plate is bent from bottom to top. When the hollow casing rotates, the sand collecting plate can push the sediment in the sand collecting pool to gather to the center and discharge it outward through the sand outlet.

[0023] 4. The present application also installs a stirring blade on the hollow sleeve, and the stirring blade can swing around the rotating axis. When the hollow sleeve rotates, it can push the three stirring blades to rotate, thereby stirring and mixing the sewage. A spoiler is also installed in the mixing trough of the stirring blade. When the stirring blade rotates, the spoiler in the mixing trough can continue to rotate under the action of the water flow. While rotating, it can drive the sewage to mix, and can quickly contact and mix the suspended matter in the sewage with the liquid medicine, thereby accelerating the flocculation step. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0025] Figure 2 is a structural diagram of Embodiment 2 of the present invention;

[0026] Figure 3 It is a cross-sectional schematic diagram of the sedimentation tank body of the present invention;

[0027] Figure 4 is a schematic diagram of a drug administration component in Embodiment 2 of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the stirring blade of the present invention;

[0029] Figure 6 It is a schematic diagram of the disassembly of the cantilever structure for dosing of medicines of the present invention;

[0030] Figure 7 The present invention Figure 3 Schematic diagram of the structure of part A;

[0031] Figure 8 The present invention Figure 5 Schematic diagram of the structure of part B.

[0032] Explanation of reference numerals: 1. sedimentation tank body; 101. concrete enclosure; 102. water storage tank; 103. sand collecting tank; 104. sand outlet; 105. sand discharge pipe; 106. water seepage trough; 107. drainage pipe; 2. cross bridge; 3. dosing assembly; 301. support shaft; 302. hollow disc; 303. dosing cantilever; 3031. diversion trough; 3032. spiral auger rod; 3033. rolling bevel gear; 3034. auxiliary bevel gear; 3035. connecting 3036, medicine feeding trough; 304, gear plate; 305, linkage rod; 306, driving gear; 307, bracket seat; 308, fixed support; 309, medicine delivery tube; 309A, medicine loading plate; 309B, medicine loading dish; 310, waterproof bearing; 311, hollow casing; 312, sand collecting plate; 313, stirring blade; 314, rotating shaft; 315, torsion spring; 316, limit shaft; 317, guide groove; 318, mixing flow groove; 319, spoiler. DETAILED DESCRIPTION

[0033] The following is combined with Figures 1 to 8 The present invention is described in further detail.

[0034] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0035] Embodiment 1

[0036] Reference Figures 1 to 8As shown, the present invention discloses a sewage treatment sedimentation tank disinfection equipment, including a sedimentation tank body 1 and a cross bridge 2 built on the sedimentation tank body 1, the sedimentation tank body 1 includes an outer circle of concrete enclosure 101 and an inner circle of water storage tank 102, a clean water trough is arranged on the top of the concrete enclosure 101, the water storage tank 102 is arranged in a circular shape, which is convenient for accumulating sewage, and a seepage trough 106 flush with the clean water trough is also opened on the inner wall of the water storage tank 102, and a drainage pipe 107 is connected to the outer side of the concrete enclosure 101, and the inner end of the drainage pipe 107 extends into the clean water trough, and a funnel-shaped sand collecting pool 103 is also installed at the bottom of the water storage tank 102, a sand outlet 104 is arranged at the bottom center of the sand collecting pool 103, and a sand discharge pipe 105 is also installed at the bottom of the sand outlet 104, when working, sewage can be discharged into the water storage tank 102 through a water pipe, and the storage tank 102 is provided with a sand collecting pool 103, and the sand collecting pool 103 is provided with a sand discharge port 104. The concrete enclosure 101 arranged outside the water tank 102 can strengthen the structure of the water tank 102, so as to meet the water storage capacity of the water tank 102, and a clean water trough is arranged on the top surface of the concrete enclosure 101, and a plurality of seepage troughs 106 are opened at a position flush with the clean water trough of the water tank 102. After a certain period of time, the turbid sewage and suspended matter will sink directly into the water tank 102, and the top will be clarified water. At this time, after continuously adding water to the water tank 102, the clean water on the top of the water tank 102 will penetrate into the clean water trough through the seepage trough 106, and the clean water can be discharged through the set drain pipe 107 for subsequent purification treatment, and the precipitated flocculants and silt will fall into the sand collecting pool 103, and then can be discharged outward through the sand outlet 104 at the center of the sand collecting pool 103, which is more convenient.

[0037] Reference Figure 8As shown, a dosing assembly 3 is also provided at the center of the sedimentation tank body 1, and the dosing assembly 3 includes a central support shaft 301, a hollow disc 302 is rotatably mounted on the support shaft 301, and dosing cantilevers 303 are symmetrically installed on both sides of the hollow disc 302 for delivering liquid medicine, and the length of the dosing cantilever 303 is less than the radius of the reservoir 102, wherein a guide groove 3031 is also provided inside the dosing cantilever 303, a spiral auger rod 3032 is rotatably installed in the guide groove 3031, and the outer port of the guide groove 3031 is open, and a channel for liquid medicine circulation is also reserved between the guide groove 3031 and the two side walls of the dosing cantilever 303, and a lower medicine groove 3036 is also opened on the bottom wall of the channel, and the two ends of the guide groove 3031 near the support shaft 301 are provided. A plurality of connecting holes 3035 are provided on the sides, an auxiliary bevel gear 3034 fixedly mounted on the support shaft 301 is also provided inside the hollow disk 302, a rolling bevel gear 3033 is also installed on the end of the spiral auger rod 3032 that passes through the hollow disk 302, and the rolling bevel gear 3033 is meshedly arranged on the auxiliary bevel gear 3034, a gear plate 304 is also rotatably mounted on the support shaft 301, the gear plate 304 is arranged above the hollow disk 302, and a plurality of linkage rods 305 are arranged between the gear plate 304 and the hollow disk 302, a bracket seat 307 is also mounted on the top of the support shaft 301, a driving motor is installed at the bottom of the bracket seat 307, a driving gear 306 is installed on the output shaft of the driving motor, and the driving gear 306 is connected to the The gear disc 304 is meshed with each other, and in order to maintain uniform dosing and ensure the flocculation and sedimentation of suspended matter in the sewage, the dosing component 3 is provided including two dosing cantilevers 303 symmetrically mounted on the hollow disc 302. When the hollow disc 302 pushes the dosing cantilever 303 to rotate, the dosing cantilever 303 will continuously rotate on the top of the water reservoir 102, thereby evenly laying the liquid medicine on the upper layer of the sewage, and then the disinfectant and flocculant in the liquid medicine will play a role, on the one hand killing harmful bacteria in the sewage, on the other hand combining with the suspended matter in the water to produce flocculation and sedimentation, which can effectively realize the purification of the sewage, and while the dosing cantilever 303 is rotating, the rolling bevel gear 3033 provided at the end of the spiral auger rod 3032 will mesh and roll on the auxiliary bevel gear 3034, Thereby, the spiral auger rod 3032 is continuously pushed to rotate. Under the push of the spiral auger rod 3032, the medicine liquid dripping into the guide groove 3031 can be pushed forward into the channels on both sides of the dosing cantilever 303, and refluxed at the connecting port 3035 to complete the circulation, so as to facilitate the even mixing of the medicine liquid and promote the flow of the medicine liquid. While flowing, the medicine liquid will also drip downward into the water reservoir 102 through the lower medicine groove 3036 to complete the dosing operation. In order to facilitate the dosing of the medicine liquid into the guide groove 3031, a medicine delivery tube 309 is suspended above the dosing cantilever 303, and a fixed support 308 for fixing and supporting the medicine delivery tube 309 is installed on the top of the dosing cantilever 303, and a dosing component is docked on the top of the medicine delivery tube 309.The medicine adding component is a circular medicine loading plate 309A, a waterproof bearing 310 is installed on the bottom of the medicine loading plate 309A, a transfer tube is installed in the waterproof bearing 310, the tops of the two medicine delivery tubes 309 are docked on the transfer tube, and the medicine loading plate 309A is fixedly installed in the middle of the cross bridge 2. When in use, the medicine liquid is mixed and introduced into the medicine loading plate 309A, and the medicine liquid in the medicine loading plate 309A will flow along the waterproof bearing 310 and the transfer tube into the two medicine delivery tubes 309, and finally drip into the guide groove 3031 and spread evenly.

[0038] Embodiment 2

[0039] Reference Figure 5 As shown, the difference between Example 2 and Example 1 is that the drug adding component is a ring-shaped drug loading dish 309B, which is fixedly installed on the top of two drug delivery tubes 309, and the drug loading dish 309B is connected to the drug delivery tubes 309, and the drug loading dish 309B is arranged below the cross bridge 2. When dosing, the drug can be added from the cross bridge 2 to the ring-shaped drug loading dish 309B. Since the drug loading dish 309B is supported by the drug delivery tube 309, when the drug dosing cantilever 303 rotates, the drug delivery tube 309 installed through the fixed support 308 will drive the drug loading dish 309B to rotate, and the drug liquid in the drug loading dish 309B will also drip into the drug dosing cantilever 303 through the drug delivery tube 309, so as to facilitate the subsequent uniform dosing of drugs into the water reservoir 102.

[0040] Embodiment 3

[0041] Reference Figure 2 As shown, a hollow sleeve 311 is also installed at the bottom of the hollow disc 302, and the bottom end of the hollow sleeve 311 extends into the lower sand port 104, and three sand collecting plates 312 arranged in a circular array are installed on the hollow sleeve 311. The sand collecting plates 312 are provided with a certain curvature from bottom to top, and the curvature direction is consistent with the rotation direction of the hollow sleeve 311. When working, the hollow disc 302 can also drive the hollow sleeve 311 to rotate together. When the sand collecting plate 312 rotates, it can push the sediment and silt that fall into the sand collecting pool 103. The funnel-shaped structure of the sand collecting pool 103 will cause the sediment and silt to gradually gather toward the sand outlet 104 at the center when being pushed, and finally be discharged. Moreover, the sand collecting plate 312 is curved from bottom to top. When pushing the sediment and silt, the curve at the top can prevent the sediment and silt from floating upward, and can better push the sediment and silt to gather toward the middle of the sand collecting pool 103.

[0042] Reference Figure 2, three stirring blades 313 arranged in a circular array are also installed on the hollow sleeve 311, and the ends of the stirring blades 313 facing the hollow sleeve 311 are respectively connected with a rotating shaft 314 and a limiting shaft 316, the rotating shaft 314 is arranged above the limiting shaft 316, and the rotating shaft 314 is also provided with a torsion spring 315, the two ends of the torsion spring 315 are respectively connected to the stirring blade 313 and the hollow sleeve 311, and a guide groove 317 for the limiting shaft 316 to slide is provided on the side of the hollow sleeve 311, and a plurality of mixing grooves 318 are also equidistantly provided on the stirring blade 313, the mixing grooves 318 are provided at a lower position on the stirring blade 313, and a spoiler 319 is rotatably installed in the mixing groove 318, and, further, for In order to quickly mix the suspended matter in the sewage with the flocculant in the liquid medicine and quickly settle them, a stirring blade 313 is also installed on the hollow sleeve 311. When the hollow sleeve 311 pushes the stirring blade 313 to rotate, the stirring blade 313 will also be subject to the resistance of the water flow, so that it can deflect around the rotating shaft 314, and in the process of moving forward, due to the change of the water flow resistance, the stirring blade 313 will also swing. At this time, the spoiler 319 in the mixing trough 318 will rotate due to different resistances, and at the same time, it will drive the sewage to generate multiple irregular vortices. With the attraction of the vortex, the suspended matter in the sewage can be quickly mixed with the flocculant to accelerate the sedimentation, and the disinfectant in the liquid medicine can also be quickly mixed with the sewage to facilitate disinfection.

[0043] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0044] The implementation principle of a sewage treatment sedimentation tank disinfection device according to an embodiment of the present invention is as follows:

[0045] During operation, after the sewage enters the circular water storage tank 102, it will naturally settle, and the suspended matter will be enriched in the sand collecting tank 103 under the action of gravity. Then, when the water is slowly and continuously added, the clean water layer at the top of the water storage tank 102 will enter the clean water tank in the concrete enclosure 101 through the seepage tank 106, and will be discharged into the subsequent treatment unit for purification through the drainage pipe 107. The precipitated flocculants and silt will fall into the sand collecting tank 103, and then they can be discharged outward through the sand outlet 104 at the center of the sand collecting tank 103, which is more convenient. When the hollow sleeve 311 pushes the sand collecting plate 312 to rotate, the flocculated materials and sediments falling into the sand collecting pool 103 can be pushed. The funnel-shaped structure of the sand collecting pool 103 will make the sediments and sediments gradually gather to the sand outlet 104 at the center when being pushed, and finally be discharged. Moreover, the sand collecting plate 312 is curved from bottom to top. When pushing the sediments and sediments, the curvature at the top can prevent the sediments and sediments from floating upward, and can better push the sediments and sediments to gather to the middle of the sand collecting pool 103.

[0046] In addition, in order to evenly dose the medicine into the water reservoir 102 and ensure the flocculation and disinfection effects, when the hollow disc 302 pushes the dosing cantilever 303 to rotate, the dosing cantilever 303 will continuously rotate on the top of the water reservoir 102, so as to evenly spread the medicine liquid on the upper layer of the sewage. Then, the disinfectant and flocculant in the medicine liquid will play a role, on the one hand, killing harmful bacteria in the sewage, and on the other hand, combining with the suspended matter in the water to produce flocculation and sedimentation, which can effectively purify the sewage. In addition, while the dosing cantilever 303 rotates, the spiral auger rod 3032 The rolling bevel gear 3033 disposed at the end will mesh and roll on the auxiliary bevel gear 3034, thereby continuously pushing the spiral auger rod 3032 to rotate. Under the push of the spiral auger rod 3032, the liquid medicine dripping into the guide groove 3031 can be pushed forward into the channels on both sides of the dosing cantilever 303, and refluxed at the connecting port 3035 to complete the circulation, so as to facilitate the even mixing of the liquid medicine and promote the flow of the liquid medicine. While flowing, the liquid medicine will also drip downwards through the lower medicine groove 3036 into the water reservoir 102, completing the dosing operation;

[0047] Furthermore, in order to quickly mix the suspended matter in the sewage with the flocculant in the liquid medicine and quickly settle them, a stirring blade 313 is also installed on the hollow sleeve 311. When the hollow sleeve 311 pushes the stirring blade 313 to rotate, the stirring blade 313 will also be subject to the resistance of the water flow, so that it can deflect around the rotating shaft 314, and in the process of moving forward, due to the changes in the water flow resistance and the potential energy of the torsion spring, the stirring blade 313 will also swing. At this time, the spoiler 319 in the mixing trough 318 will rotate due to different resistances. While rotating, it will drive the sewage to produce multiple irregular vortices, causing the flocculant and the suspended matter to collide at a high frequency, accelerating the mixing of the suspended matter and the flocculant, and quickly mixing the disinfectant in the liquid medicine with the sewage to facilitate disinfection.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sewage treatment sedimentation tank disinfection equipment, characterized in that: It comprises a sedimentation tank body (1) and a cross bridge (2) erected on the sedimentation tank body (1), and a dosing assembly (3) is also arranged at the center of the sedimentation tank body (1); The sedimentation tank body (1) comprises an outer concrete enclosure (101) and an inner water storage tank (102). A clean water tank is arranged on the top of the concrete enclosure (101). The water storage tank (102) is arranged in a circular shape to facilitate the accumulation of sewage. The dosing assembly (3) comprises a central support shaft (301), a hollow disc (302) rotatably mounted on the support shaft (301), dosing cantilevers (303) symmetrically mounted on both sides of the hollow disc (302) for dosing liquid medicine, and the length of the dosing cantilever (303) is less than the radius of the water reservoir (102); The interior of the dosing cantilever (303) is also equipped with a guide groove (3031), a spiral auger rod (3032) is rotatably installed in the guide groove (3031), and the outer port of the guide groove (3031) is open. A channel for circulating the drug solution is also left between the guide groove (3031) and the two side walls of the dosing cantilever (303), and a lower drug groove (3036) is also opened on the bottom wall of the channel. A plurality of communication ports (3035) are opened on both sides of the guide groove (3031) close to one end of the support shaft (301).

2. A sewage treatment sedimentation tank disinfection equipment according to claim 1, characterized in that: An auxiliary bevel gear (3034) fixedly mounted on the support shaft (301) is also provided inside the hollow disc (302), and a rolling bevel gear (3033) is also installed on the end of the spiral auger rod (3032) that passes through the hollow disc (302), and the rolling bevel gear (3033) is meshedly arranged on the auxiliary bevel gear (3034).

3. A sewage treatment sedimentation tank disinfection equipment according to claim 2, characterized in that: The support shaft (301) is also rotatably mounted with a gear plate (304), the gear plate (304) being arranged above the hollow disc (302), and a plurality of linkage rods (305) being arranged between the gear plate (304) and the hollow disc (302). A bracket seat (307) is also mounted on the top of the support shaft (301), a driving motor is mounted on the bottom of the bracket seat (307), and a driving gear (306) is mounted on the output shaft of the driving motor, and the driving gear (306) is meshed with the gear plate (304).

4. A sewage treatment sedimentation tank disinfection equipment according to claim 1, characterized in that: A drug delivery tube (309) is suspended above the drug delivery cantilever (303), and a fixed support (308) for fixedly supporting the drug delivery tube (309) is installed on the top of the drug delivery cantilever (303). A drug adding component is docked on the top of the drug delivery tube (309).

5. A sewage treatment sedimentation tank disinfection equipment according to claim 4, characterized in that: The drug adding component comprises a circular drug loading plate (309A), a waterproof bearing (310) is installed on the bottom of the drug loading plate (309A), a transfer tube is installed in the waterproof bearing (310), and the tops of the two drug delivery tubes (309) are both connected to the transfer tube.

6. A sewage treatment sedimentation tank disinfection equipment according to claim 4, characterized in that: The drug adding component comprises a drug loading dish (309B) arranged in an annular shape. The drug loading dish (309B) is fixedly mounted on the top of two drug delivery tubes (309), and the drug loading dish (309B) is kept in communication with the drug delivery tubes (309).

7. A sewage treatment sedimentation tank disinfection equipment according to claim 1, characterized in that: A funnel-shaped sand collecting pool (103) is also installed at the bottom of the water storage tank (102), a sand outlet (104) is provided at the center of the bottom of the sand collecting pool (103), and a sand discharge pipe (105) is also installed at the bottom of the sand outlet (104). A water seepage groove (106) flush with the clean water tank is also opened on the inner wall of the water storage tank (102), and a drainage pipe (107) is connected to the outer side of the concrete enclosure (101), and the inner end of the drainage pipe (107) extends into the clean water tank.

8. A sewage treatment sedimentation tank disinfection equipment according to claim 7, characterized in that: A hollow sleeve (311) is also installed at the bottom of the hollow disc (302), the bottom end of the hollow sleeve (311) extends into the lower sand port (104), and three sand gathering plates (312) arranged in a ring array are installed on the hollow sleeve (311), the sand gathering plates (312) are provided with a certain curvature from bottom to top, and the curvature direction is consistent with the rotation direction of the hollow sleeve (311).

9. A sewage treatment sedimentation tank disinfection equipment according to claim 8, characterized in that: The hollow sleeve (311) is also provided with three stirring blades (313) arranged in a circular array. The ends of the stirring blades (313) facing the hollow sleeve (311) are respectively connected to a rotating shaft (314) and a limiting shaft (316). The rotating shaft (314) is arranged above the limiting shaft (316). A torsion spring (315) is also sleeved on the rotating shaft (314). Two ends of the torsion spring (315) are respectively connected to the stirring blades (313) and the hollow sleeve (311). A guide groove (317) for the limiting shaft (316) to slide is provided on the side surface of the hollow sleeve (311).

10. A sewage treatment sedimentation tank disinfection equipment according to claim 9, characterized in that: The stirring blade (313) is also provided with a plurality of mixing grooves (318) at equal intervals. The mixing grooves (318) are provided at lower positions on the stirring blade (313), and a spoiler (319) is rotatably installed in the mixing grooves (318).

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