Municipal sewage treatment device

Abstract

The invention is applicable to the technical field of sewage treatment, and provides a municipal sewage treatment device which comprises a sewage flocculation tank, a sewage discharge pipe and a water discharge pipe which are mounted on the side wall of the sewage flocculation tank, two guide rails which are fixed in parallel at the upper end of the sewage flocculation tank, and a sewage discharge pipe and a water discharge pipe which are mounted on the side wall of the sewage flocculation tank, the moving plate is fixed on the two guide rails; a moving assembly is arranged at the upper end of the sewage flocculation tank and is used for driving a moving plate to move on the two guide rails; and a plurality of stirring main shafts are rotationally connected to the movable plate. The blade rotating assembly drives the stirring blades to rotate into the rectangular containing groove, so that the side wall of the stirring main shaft is kept flat, after the stirring blades rotate into the rectangular containing groove, the stirring blades and the inner wall of the stirring main shaft are kept on the same horizontal plane, and at the moment, cleaning tools such as brushes can be used for cleaning the inner wall and the outer wall of the stirring main shaft. Therefore, the cleaning efficiency of the stirring spindle and the stirring blades is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a municipal sewage treatment device. Background Art

[0002] Municipal sewage refers to domestic sewage and industrial wastewater within the urban area, which is collected by the urban drainage network and transported to the sewage treatment plant for treatment. Municipal sewage mainly includes domestic sewage and industrial sewage. Domestic sewage comes from the wastewater generated by residents' daily life, such as washing and flushing toilets, while industrial sewage comes from the wastewater generated during industrial production.

[0003] Municipal sewage treatment involves a sedimentation process, which generally involves discharging sewage into a sedimentation tank, adding flocculants into the sedimentation tank, and using a stirring device to mix the flocculants and sewage evenly, so that impurities such as suspended matter, colloids and particulate matter in the sewage can be coagulated and precipitated.

[0004] To ensure the efficiency of sewage treatment, the sedimentation tank and the stirring rod need to be cleaned regularly. The stirring rod generally includes a vertically arranged main shaft and a plurality of stirring blades arranged horizontally along the side wall of the main shaft. Therefore, the structure of the stirring rod is complex. It is time-consuming and laborious to use a brush to brush the stirring rod, making it difficult to clean the stirring rod. Summary of the invention

[0005] The purpose of the embodiment of the present invention is to provide a municipal sewage treatment device, aiming to solve the problem that the existing sewage treatment equipment is difficult to clean.

[0006] The present invention is implemented as follows: a municipal sewage treatment device comprises a sewage flocculation tank, and a sewage pipe and a drainage pipe installed on the side wall of the sewage flocculation tank, wherein the sewage pipe and the drainage pipe are both installed with a check valve, and further comprises: two mutually parallel fixed guide rails at the upper end of the sewage flocculation tank, and two movable plates fixed on the guide rails; a movable assembly is arranged at the upper end of the sewage flocculation tank, and the movable assembly is used to drive the movable plate to move on the two guide rails; a plurality of stirring main shafts are rotatably connected to the movable plate, and a rotating assembly 1 is arranged on the movable plate, and the rotating assembly 1 is used to drive the plurality of stirring main shafts to rotate; the surface shape of the lower part of the stirring main shaft is a regular hexagon, and the stirring main shaft is hollow, and the cross-sectional shape of the inner wall of the stirring main shaft is a regular hexagon; a plurality of rectangular receiving grooves are linearly arranged on each side wall of the stirring main shaft, and a rotating shaft is rotatably connected in the plurality of the rectangular receiving grooves, and stirring blades are fixed on the plurality of the rotating shafts; a blade rotating assembly is arranged on the movable plate, and the blade rotating assembly is used to drive the stirring blade to rotate into the rectangular receiving groove or extend from the rectangular receiving groove.

[0007] A further technical solution is that the moving component includes two screw rods 1 rotatably connected to the upper end of the sewage flocculation tank, and the two screw rods 1 both penetrate the moving plate and are threadedly connected to the moving plate; a motor 1 is fixed to the upper end of the sewage flocculation tank, and the rotating end of the motor 1 is fixedly connected to one of the screw rods 1; a pulley 3 is fixed on the two screw rods 1, and the two pulleys 3 are connected through a synchronous belt 3 transmission.

[0008] A further technical solution is that the rotating component 1 includes a gear 1 rotatably connected to the upper end of the moving plate, a motor 2 is fixed to the lower end of the moving plate, the rotating end of the motor 2 passes through the moving plate upward and is fixedly connected to the gear 1; a gear 2 is fixed on one of the stirring main shafts, and the gear 2 is meshed with the gear 1; a pulley 1 is fixed on each of two adjacent stirring main shafts, and the two adjacent pulleys 1 are connected through a synchronous belt 1.

[0009] A further technical solution is that the blade rotation assembly includes a plurality of vertical sliding rods that are vertically slidably connected to the plurality of stirring main shafts, and the plurality of vertical sliding rods are evenly arranged in a ring; racks are embedded and fixed on the side walls of the plurality of vertical sliding rods, and gear three is fixed on the plurality of rotating shafts linearly arranged on the stirring main shaft, and the plurality of linearly arranged gear threes are meshed with the same rack; a connecting ring frame is arranged above each of the stirring main shafts, and the plurality of vertical sliding rods on the stirring main shaft are fixed on the connecting ring frame; a lifting module is arranged at the upper end of the movable plate, and the lifting module is used to drive the plurality of connecting ring frames to move up and down.

[0010] A further technical solution is that the lifting module includes two guide shafts fixed on the upper end of the movable plate, and the two guide shafts are slidably connected with the lifting plate; the plurality of connecting ring frames are rotatably connected to the lifting plate, and an electric telescopic rod is fixed on the upper end of the movable plate, and the telescopic end of the electric telescopic rod is fixedly connected to the lifting plate.

[0011] A further technical solution is provided on the movable plate, and the inner cleaning mechanism includes a top fixed plate fixed at the upper end of the guide shaft; a plurality of driving columns are rotatably connected to the top fixed plate, and a plurality of jacks are annularly arranged at the lower ends of the plurality of driving columns, and the plurality of driving columns are respectively located directly above a plurality of stirring main shafts; a rotating component 2 is provided on the top fixed plate, and the rotating component 2 is used to drive the plurality of driving columns to rotate; a regular hexagonal scraper block is slidably connected in the plurality of stirring main shafts, and a screw rod 2 is rotatably connected in the plurality of stirring main shafts, and the screw rod 2 is threadedly connected to the regular hexagonal scraper block; a sliding sleeve is slidably connected at the upper end of the screw rod 2, and the sliding sleeve is rotatably connected to the connecting annular frame, and a plurality of vertical slide grooves are evenly annularly arranged at the upper end of the sliding sleeve; a movable plug is slidably connected in the plurality of vertical slide grooves, and the movable plug cooperates with the jack, and a compression spring is fixedly connected to the lower end of the movable plug, and the end of the compression spring is fixed to the end of the jack.

[0012] According to a further technical solution, the rotating component 2 includes a gear 4 rotatably connected to the upper end of the top fixed plate, a motor 3 is fixed to the lower end of the top fixed plate, the rotating end of the motor 3 passes through the top fixed plate upward and is fixedly connected to the gear 4; a gear 5 is fixed on one of the driving columns, and the gear 5 is meshed with the gear 4; a pulley 2 is fixed on each two adjacent driving columns, and the two adjacent pulleys 2 are connected by a synchronous belt 2.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The moving assembly drives the moving plate to move on the two guide rails, which can increase the range of the stirring blades driven by the stirring main shaft to stir the sewage, so that the sewage and the flocculant are fully mixed; 2. The blade rotating assembly drives the stirring blade to rotate into the rectangular storage groove, so that the side wall of the stirring main shaft remains flat. After the stirring blade rotates into the rectangular storage groove, the stirring blade and the inner wall of the stirring main shaft are also kept at the same horizontal plane. At this time, a brush or other cleaning tool can be used to clean the inner and outer walls of the stirring main shaft, thereby improving the cleaning efficiency of the stirring main shaft and the stirring blade; 3. When the stirring main shaft drives the stirring blades to stir the sewage, the blade rotating assembly drives the stirring blades to frequently move into or extend from the rectangular receiving groove, so that the stirring angle of the stirring blades can be changed at all times, thereby changing the stirring trajectory of the stirring blades and improving the mixing effect of the sewage and the flocculant. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a municipal sewage treatment device provided by the present invention; Figure 2 The present invention provides Figure 1 Schematic diagram of the structure after removing the sewage flocculation tank; Figure 3 The present invention provides Figure 2 Structural diagram of the main viewing angle; Figure 4 The present invention provides Figure 2 A is a schematic diagram of the enlarged structure of the middle part; Figure 5 The present invention provides Figure 2 Schematic diagram of the structure on the stirring main shaft; Figure 6 The present invention provides Figure 5 Schematic diagram of the internal structure of the stirring main shaft and the sliding sleeve; Figure 7 The present invention provides Figure 6 Schematic diagram of the enlarged structure of B; Figure 8 The present invention provides Figure 6 Schematic diagram of the enlarged structure of C in the middle; Fig. 9 The present invention provides Figure 5 Schematic diagram of the structure of the middle drive column.

[0015] In the attached drawings: sewage flocculation tank 101, guide rail 102, moving plate 103, sewage pipe 104, drainage pipe 105, stirring main shaft 106, rectangular storage tank 107, rotating shaft 108, stirring blade 109, moving component 2, screw rod 201, motor 202, rotating component 3, motor 2 301, gear 1 302, gear 2 303, pulley 1 304, synchronous belt 1 305, blade rotating component 4, vertical sliding rod 401, gear Strip 402, gear three 403, connecting ring frame 404, lifting plate 405, guide shaft 406, electric telescopic rod 407, inner cleaning mechanism 5, top fixed plate 501, drive column 502, jack 503, screw rod two 504, sliding sleeve 505, vertical slide groove 506, movable plug 507, compression spring 508, rotating component two 6, gear four 601, motor three 602, gear five 603, pulley two 604, synchronous belt two 605. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, a municipal sewage treatment device provided by an embodiment of the present invention includes a sewage flocculation tank 101, and a sewage pipe 104 and a drainage pipe 105 installed on the side wall of the sewage flocculation tank 101, and the sewage pipe 104 and the drainage pipe 105 are both installed with a check valve, and also includes: two guide rails 102 fixed parallel to each other at the upper end of the sewage flocculation tank 101, and two movable plates 103 fixed on the guide rails 102; a movable component 2 is arranged at the upper end of the sewage flocculation tank 101, and the movable component 2 is used to drive the movable plate 103 to move on the two guide rails 102; a plurality of stirring main shafts 106 are rotatably connected to the movable plate 103, and a rotating shaft 106 is arranged on the movable plate 103 A rotating component 3 is provided, and the rotating component 3 is used to drive multiple stirring spindles 106 to rotate; the surface shape of the lower part of the stirring spindle 106 is a regular hexagon, and the stirring spindle 106 is hollow, and the cross-sectional shape of the inner wall of the stirring spindle 106 is a regular hexagon; a plurality of rectangular receiving grooves 107 are linearly arranged on each side wall of the stirring spindle 106, and a rotating shaft 108 is rotatably connected in the plurality of rectangular receiving grooves 107, and stirring blades 109 are fixed on the plurality of rotating shafts 108; a blade rotating component 4 is provided on the movable plate 103, and the blade rotating component 4 is used to drive the stirring blades 109 to rotate into the rectangular receiving groove 107 or extend from the rectangular receiving groove 107.

[0019] In the embodiment of the present invention, when in use, the sewage after preliminary filtration is poured into the sewage flocculation tank 101 through the drain pipe 105, and then the flocculant is added into the sewage flocculation tank 101, the blade rotating component 4 drives the stirring blade 109 to extend from the rectangular receiving groove 107, the moving component 2 drives the moving plate 103 to move on the two guide rails 102, the rotating component 103 drives multiple stirring spindles 106 to rotate, the stirring spindle 106 drives the stirring blade 109 to rotate, and then the stirring spindle 106 drives the stirring blade 109 to stir the sewage, so that the sewage and the flocculant are fully mixed; the stirring spindle 106 and the stirring blade 109 will be attached with impurities after long-term use, so it is necessary to clean the stirring spindle 106 and the stirring blade 109, at this time, the blade rotating component 4 drives the stirring blade 109 to move into the rectangular receiving groove 107, so that the stirring spindle 1 06 side wall remains flat, and after the stirring blade 109 enters the rectangular receiving groove 107, when the stirring blade 109 enters the rectangular receiving groove 107, the rectangular receiving groove 107 scrapes and cleans the side wall of the stirring blade 109, and the stirring blade 109 and the inner wall of the stirring main shaft 106 are also maintained at the same horizontal plane. At this time, a brush or other cleaning tool can be used to clean the inner and outer walls of the stirring main shaft 106, thereby improving the cleaning efficiency of the stirring main shaft 106 and the stirring blade 109, and when the stirring main shaft 106 drives the stirring blade 109 to stir the sewage, the blade rotating component 4 drives the stirring blade 109 to frequently enter the rectangular receiving groove 107 or extend from the rectangular receiving groove 107, so that the stirring angle of the stirring blade 109 can be changed at all times, thereby changing the stirring trajectory of the stirring blade 109, and also improving the mixing effect of sewage and flocculant.

[0020] like Figure 1 As shown, as a preferred embodiment of the present invention, the moving component 2 includes two screw rods 201 rotatably connected to the upper end of the sewage flocculation tank 101, and the two screw rods 201 both penetrate the moving plate 103 and are threadedly connected to the moving plate 103; a motor 202 is fixed to the upper end of the sewage flocculation tank 101, and the rotating end of the motor 202 is fixedly connected to one of the screw rods 201; pulleys three are fixed on the two screw rods 201, and the two pulleys three are connected through a synchronous belt three transmission.

[0021] In the embodiment of the present invention, the motor 202 drives one of the screw rods 201 to rotate, and the screw rod 201 drives the other screw rod 201 to rotate synchronously through the pulley 3 and the synchronous belt 3, and the screw rod 201 drives the movable plate 103 to move on the guide rail 102 through thread transmission.

[0022] like Figure 1-Figure 4As shown, as a preferred embodiment of the present invention, the rotating component 13 includes a gear 1 302 rotatably connected to the upper end of the moving plate 103, and a motor 2 301 is fixed to the lower end of the moving plate 103, and the rotating end of the motor 2 301 upwardly penetrates the moving plate 103 and is fixedly connected to the gear 1 302; a gear 2 303 is fixed on one of the stirring main shafts 106, and the gear 2 303 is meshed with the gear 1 302; a pulley 1 304 is fixed on each of the two adjacent stirring main shafts 106, and the two adjacent pulleys 1 304 are connected through a synchronous belt 1 305.

[0023] In the embodiment of the present invention, motor 2 301 drives gear 1 302 to rotate, gear 1 302 drives gear 2 303 to rotate, gear 2 303 drives one of the stirring spindles 106 to rotate, and this stirring spindle 106 can drive the remaining stirring spindles 106 to rotate through the transmission cooperation of pulley 1 304 and synchronous belt 1 305, thereby making multiple stirring spindles 106 rotate together.

[0024] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, as a preferred embodiment of the present invention, the blade rotating assembly 4 includes a plurality of vertical sliding rods 401 vertically slidably connected to the plurality of stirring main shafts 106, and the plurality of vertical sliding rods 401 are evenly arranged in an annular shape; a rack 402 is embedded and fixed on the side walls of the plurality of vertical sliding rods 401, and a gear three 403 is fixed on the plurality of rotating shafts 108 linearly arranged on the stirring main shaft 106, and the plurality of linearly arranged gear three 403 are all meshed with the same rack 402; a connecting annular frame 404 is arranged above each of the stirring main shafts 106, and the stirring Multiple vertical sliding rods 401 on the main shaft 106 are all fixed on the connecting annular frame 404; a lifting module is provided on the upper end of the movable plate 103, and the lifting module is used to drive the multiple connecting annular frames 404 to move up and down; the lifting module includes two guide shafts 406 fixed on the upper end of the movable plate 103, and a lifting plate 405 is slidably connected to the two guide shafts 406; multiple connecting annular frames 404 are rotatably connected to the lifting plate 405, and an electric telescopic rod 407 is fixed on the upper end of the movable plate 103, and the telescopic end of the electric telescopic rod 407 is fixedly connected to the lifting plate 405.

[0025] In the embodiment of the present invention, under the guiding action of the guide shaft 406, the electric telescopic rod 407 can be extended and retracted to drive the lifting plate 405 to move up and down. When the lifting plate 405 moves downward, the lifting plate 405 drives the connecting annular frame 404 to move downward, the connecting annular frame 404 drives the vertical sliding rod 401 to move downward, the vertical sliding rod 401 drives the rack 402 to move downward, the rack 402 drives the gear three 403 to rotate, the gear three 403 drives the rotating shaft 108 to rotate, and the rotating shaft 108 drives the stirring blade 109 to extend out of the rectangular storage groove 107; when the lifting plate 405 moves upward, the lifting plate 405 drives the connecting annular frame 404 to move upward, the connecting annular frame 404 drives the vertical sliding rod 401 to move upward, the vertical sliding rod 401 drives the rack 402 to move upward, the rack 402 drives the gear three 403 to reverse, the gear three 403 drives the rotating shaft 108 to reverse, and the rotating shaft 108 drives the stirring blade 109 to rotate into the rectangular storage groove 107.

[0026] like Figure 2-Figure 9 As shown, as a preferred embodiment of the present invention, the movable plate 103 is provided with an inner cleaning mechanism 5, and the inner cleaning mechanism 5 includes a top fixed plate 501 fixed at the upper end of the guide shaft 406; a plurality of driving columns 502 are rotatably connected to the top fixed plate 501, and a plurality of jacks 503 are annularly arranged at the lower ends of the plurality of driving columns 502, and the plurality of driving columns 502 are respectively located directly above the plurality of stirring spindles 106; a rotating component 2 6 is provided on the top fixed plate 501, and the rotating component 2 6 is used to drive the plurality of driving columns 502 to rotate; a plurality of the stirring spindles 106 are slidably connected with regular hexagonal scraping blocks, and a plurality of the stirring spindles 106 are rotatably connected with screw rods 2 504, and the screw rods 2 504 are threadedly connected with the regular hexagonal scraping blocks; a sliding sleeve 505 is slidably connected to the upper end of the screw rod 2 504, and the sliding sleeve 505 is rotatably connected to the connecting annular frame 4 04, a plurality of vertical slide grooves 506 are evenly arranged in an annular manner on the upper end of the sliding sleeve 505; a movable plug 507 is slidably connected in each of the plurality of vertical slide grooves 506, the movable plug 507 cooperates with the socket 503, and a compression spring 508 is fixedly connected to the lower end of the movable plug 507, and the end of the compression spring 508 is fixed to the end of the socket 503; the rotating component 26 includes a gear 4 601 rotatably connected to the upper end of the top fixed plate 501, a motor 3 602 is fixed to the lower end of the top fixed plate 501, and the rotating end of the motor 3 602 passes through the top fixed plate 501 upward and is fixedly connected to the gear 4 601; a gear 5 603 is fixed on one of the driving columns 502, and the gear 5 603 is meshed with the gear 4 601; a pulley 2 604 is fixed on each of the two adjacent driving columns 502, and the two adjacent pulleys 2 604 are connected through a synchronous belt 2 605.

[0027] In the embodiment of the present invention, in the initial state, the rotating shaft 108 drives the stirring blade 109 to rotate out of the rectangular storage groove 107, and the movable plug 507 is not inserted into the insertion hole 503; when the rotating shaft 108 drives the stirring blade 109 to rotate into the rectangular storage groove 107, the upwardly moving connecting annular frame 404 drives the sliding sleeve 505 to move upward, the sliding sleeve 505 drives the movable plug 507 to move upward, and the movable plug 507 is inserted into the insertion hole 503, so that the sliding sleeve 505 is connected to the driving column 502 in transmission, the motor three 602 drives the gear four 601 to rotate, and the gear four 601 drives the gear five 603 Rotate, gear five 603 drives one of the driving columns 502 to rotate, and this driving column 502 can drive the remaining driving columns 502 to rotate through the transmission cooperation of pulley two 604 and synchronous belt two 605, so that multiple driving columns 502 can rotate together, and the driving column 502 drives the sliding sleeve 505 to rotate, and the sliding sleeve 505 drives the screw two 504 to rotate. Under the guidance of the inner wall of the stirring main shaft 106, the screw two 504 drives the regular hexagonal scraper block to move downward through threaded transmission, so that the regular hexagonal scraper block cleans the inner wall of the stirring main shaft 106 and the upper end of the stirring blade 109.

[0028] The above embodiment of the present invention provides a municipal sewage treatment device. When in use, the sewage after preliminary filtration is poured into the sewage flocculation tank 101 through the drainage pipe 105, and then the flocculant is added into the sewage flocculation tank 101. The blade rotating component 4 drives the stirring blade 109 to extend from the rectangular receiving groove 107, and the motor 1 202 drives one of the screw rods 1 201 to rotate. This screw rod 1 201 drives another screw rod 1 201 to rotate synchronously through the pulley 3 and the synchronous belt 3. The screw rod 1 201 drives the moving plate 103 to move on the guide rail 102 through the threaded transmission. The motor 2 301 drives the gear 1 302 to rotate. The first gear 302 drives the second gear 303 to rotate, and the second gear 303 drives one of the stirring main shafts 106 to rotate. The stirring main shaft 106 can drive the other stirring main shafts 106 to rotate through the transmission cooperation of the pulley 1 304 and the synchronous belt 1 305, so that the multiple stirring main shafts 106 rotate together, and the stirring main shaft 106 drives the stirring blade 109 to rotate, and then the stirring main shaft 106 drives the stirring blade 109 to stir the sewage, so that the sewage and the flocculant are fully mixed; the stirring main shaft 106 and the stirring blade 109 will be attached with impurities after long-term use, so the stirring main shaft 106 and the stirring blade 109 need to be repaired. At this time, under the guidance of the guide shaft 406, the electric telescopic rod 407 is extended to drive the lifting plate 405 to move upward. When the lifting plate 405 moves upward, the lifting plate 405 drives the connecting ring frame 404 to move upward, and the connecting ring frame 404 drives the vertical sliding rod 401 to move upward. The vertical sliding rod 401 drives the rack 402 to move upward, the rack 402 drives the gear three 403 to reverse, and the gear three 403 drives the rotating shaft 108 to reverse, and the rotating shaft 108 drives the stirring blade 109 to rotate into the rectangular storage groove 107, so that the side wall of the stirring main shaft 106 remains flat, and the stirring blade 109 rotates into the rectangular storage groove 107. After entering the rectangular receiving groove 107, the stirring blade 109 and the inner wall of the stirring main shaft 106 are also maintained at the same horizontal plane, and the inner and outer walls of the stirring main shaft 106 can be cleaned using a brush or other cleaning tools, thereby improving the cleaning efficiency of the stirring main shaft 106 and the stirring blade 109. When the stirring main shaft 106 drives the stirring blade 109 to stir the sewage, the blade rotating component 4 drives the stirring blade 109 to frequently move into the rectangular receiving groove 107 or extend from the rectangular receiving groove 107, so that the stirring angle of the stirring blade 109 can be changed all the time, thereby changing the stirring trajectory of the stirring blade 109, and also improving the mixing effect of the sewage and the flocculant.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A municipal sewage treatment device, comprising a sewage flocculation tank (101), and a sewage discharge pipe (104) and a drainage pipe (105) installed on the side wall of the sewage flocculation tank (101), wherein both the sewage discharge pipe (104) and the drainage pipe (105) are installed with a check valve, characterized in that: Also includes: Two mutually parallel and fixed guide rails (102) at the upper end of the sewage flocculation tank (101), and a movable plate (103) fixed on the two guide rails (102); A moving assembly (2) is provided at the upper end of the sewage flocculation tank (101), and the moving assembly (2) is used to drive the moving plate (103) to move on the two guide rails (102); The movable plate (103) is rotatably connected to a plurality of stirring main shafts (106); a rotating component one (3) is provided on the movable plate (103); the rotating component one (3) is used to drive the plurality of stirring main shafts (106) to rotate; The surface shape of the lower portion of the stirring main shaft (106) is a regular hexagon, and the stirring main shaft (106) is hollow, and the cross-sectional shape of the inner wall of the stirring main shaft (106) is a regular hexagon; A plurality of rectangular receiving grooves (107) are linearly arranged on each side wall of the stirring main shaft (106); a rotating shaft (108) is rotatably connected in each of the plurality of rectangular receiving grooves (107); and a stirring blade (109) is fixed on each of the plurality of rotating shafts (108); The movable plate (103) is provided with a blade rotating assembly (4), and the blade rotating assembly (4) is used to drive the stirring blade (109) to rotate into the rectangular receiving groove (107) or to extend from the rectangular receiving groove (107).

2. The municipal sewage treatment device according to claim 1, characterized in that: The moving assembly (2) comprises two screw rods (201) rotatably connected to the upper end of the sewage flocculation tank (101), and the two screw rods (201) both penetrate the moving plate (103) and are threadedly connected to the moving plate (103); A motor 1 (202) is fixed at the upper end of the sewage flocculation tank (101), and a rotating end of the motor 1 (202) is fixedly connected to one of the screw rods 1 (201); A pulley three is fixed on each of the two screw rods one (201), and the two pulleys three are connected through a synchronous belt three transmission.

3. The municipal sewage treatment device according to claim 1, characterized in that: The rotating assembly 1 (3) comprises a gear 1 (302) rotatably connected to the upper end of the moving plate (103), a motor 2 (301) is fixed to the lower end of the moving plate (103), and the rotating end of the motor 2 (301) passes through the moving plate (103) upward and is fixedly connected to the gear 1 (302); A second gear (303) is fixed on one of the stirring main shafts (106), and the second gear (303) is meshed with the first gear (302); A pulley 1 (304) is fixed on each of two adjacent stirring main shafts (106), and the two adjacent pulleys 1 (304) are connected by a synchronous belt 1 (305).

4. The municipal sewage treatment device according to claim 1, characterized in that: The blade rotating assembly (4) comprises a plurality of vertical sliding rods (401) vertically slidably connected to the plurality of stirring main shafts (106), wherein the plurality of vertical sliding rods (401) are evenly arranged in a ring shape; A rack (402) is embedded and fixed on the side walls of the plurality of vertical sliding rods (401), and a gear three (403) is fixed on the plurality of rotating shafts (108) linearly arranged on the stirring main shaft (106), and the plurality of gear threes (403) linearly arranged are all meshed with the same rack (402); A connecting annular frame (404) is provided above each stirring main shaft (106), and a plurality of vertical sliding rods (401) on the stirring main shaft (106) are fixed on the connecting annular frame (404); A lifting module is provided at the upper end of the movable plate (103), and the lifting module is used to drive the plurality of connecting annular frames (404) to move up and down.

5. The municipal sewage treatment device according to claim 4, characterized in that: The lifting module comprises two guide shafts (406) fixed on the upper end of the moving plate (103), and the lifting plates (405) are slidably connected to the two guide shafts (406); The plurality of connecting annular frames (404) are all rotatably connected to the lifting plate (405); an electric telescopic rod (407) is fixed to the upper end of the movable plate (103); and the telescopic end of the electric telescopic rod (407) is fixedly connected to the lifting plate (405).

6. The municipal sewage treatment device according to claim 5, characterized in that: An inner cleaning mechanism (5) is provided on the movable plate (103), and the inner cleaning mechanism (5) comprises a top fixing plate (501) fixed to the upper end of the guide shaft (406); A plurality of driving columns (502) are rotatably connected to the top fixed plate (501), a plurality of plug holes (503) are provided in an annular shape at the lower ends of the plurality of driving columns (502), and the plurality of driving columns (502) are respectively located directly above the plurality of stirring main shafts (106); A second rotating assembly (6) is provided on the top fixed plate (501), and the second rotating assembly (6) is used to drive the plurality of driving columns (502) to rotate; A plurality of the stirring main shafts (106) are all slidably connected with a regular hexagonal scraper block, a plurality of the stirring main shafts (106) are all rotatably connected with a second screw rod (504), and the second screw rod (504) is threadedly connected to the regular hexagonal scraper block; The upper end of the second screw rod (504) is slidably connected to a sliding sleeve (505), the sliding sleeve (505) is rotatably connected to the connecting annular frame (404), and the upper end of the sliding sleeve (505) is evenly and annularly provided with a plurality of vertical sliding grooves (506); A plurality of vertical sliding grooves (506) are slidably connected with movable plugs (507), the movable plugs (507) cooperate with the socket (503), the lower end of the movable plug (507) is fixedly connected with a compression spring (508), and the end of the compression spring (508) is fixed to the end of the socket (503).

7. The municipal sewage treatment device according to claim 6, characterized in that: The rotating assembly 2 (6) comprises a gear 4 (601) rotatably connected to the upper end of the top fixing plate (501), a motor 3 (602) is fixed to the lower end of the top fixing plate (501), and the rotating end of the motor 3 (602) passes through the top fixing plate (501) upward and is fixedly connected to the gear 4 (601); A fifth gear (603) is fixed on one of the driving columns (502), and the fifth gear (603) is meshed with the fourth gear (601); A second pulley (604) is fixed on each of two adjacent driving columns (502), and the two adjacent second pulleys (604) are connected by a synchronous belt (605).

Images