CN114671480A

CN114671480A - Municipal sewage treatment equipment and method thereof

Info

Publication number: CN114671480A
Application number: CN202210303217.4A
Authority: CN
Inventors: 李傲驰
Original assignee: Zhejiang Hengwei Construction Group Co ltd
Current assignee: Zhejiang Hengwei Construction Group Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-06-28
Anticipated expiration: 2042-03-25
Also published as: CN114671480B

Abstract

The application relates to municipal sewage treatment equipment and a method thereof, relates to the technical field of sewage treatment, and aims to solve the problem that the working performance of the sewage treatment equipment is lower due to the fact that the scum scraping effect of the sewage treatment equipment on the sewage surface is poor. It includes the sewage case, the inside a plurality of rotation impellers that are provided with of sewage incasement portion, sewage case top is provided with the sediment subassembly of scraping that is used for scraping sewage surface froth, it includes sideslip piece to scrape the sediment subassembly, set up in the lift piece of sideslip piece below and set up and scrape sediment piece in the lift piece below, row's cinder notch has all been seted up to sewage case both sides wall, it includes the scum board of two vertical settings to scrape the sediment piece, one side that two scum boards deviate from the lift piece all is provided with the dross limiting plate, two dross limiting plates all buckle towards corresponding row's cinder notch direction, the dross limiting plate is provided with rotating assembly with the scum board junction. This application has the improvement and scrapes off efficiency to the dross on sewage surface, improves sewage treatment device work efficiency's effect.

Description

Municipal sewage treatment equipment and method thereof

Technical Field

The application relates to the technical field of sewage treatment, in particular to municipal sewage treatment equipment and a method thereof.

Background

Along with the development of social and industrial levels, the urban living standard is gradually improved, a large amount of sewage is inevitably generated in daily operation of a city, and the random discharge of the sewage can cause immeasurable influence on the environment, so that the method is indispensable for the treatment before the sewage discharge.

Among the correlation technique, the design has a sewage treatment device, including the sewage case, inlet tube and outlet pipe, the sewage case diapire rotates and is connected with a plurality of rotation impellers, inlet tube and outlet pipe all are linked together with the sewage case, the sewage case outside is provided with a plurality of air conduit that are used for adding compressed air towards the sewage incasement portion, air conduit one end is inserted and is established into the inside and be located corresponding rotation impeller top of sewage case, the sewage case top is provided with and is used for scraping the sediment subassembly of scraping that scrapes the dross on sewage surface, but scrape the sediment subassembly and include horizontal migration's sideslip piece, set up in the sideslip piece towards the lift piece that sewage case one side can vertical direction remove and set up in the scum board that the sideslip deviates from a one end. When sewage equipment starts, air conduit inputs compressed air to corresponding rotation impeller top, through the rotation of rotating impeller, splits compressed air to drive the suspended particles in the sewage to the liquid surface, scrape the superficial froth by scraping the sediment subassembly and scrape away, thereby play certain treatment effect to sewage.

In view of the above-mentioned related patents, the inventor finds that when the scum on the surface of the sewage is scraped by the scum board, the scum board may be flushed back into the sewage by the fluctuating water flow in the moving process of the scum board due to certain fluidity of the sewage in the moving process of the scum board, and the scum is lack of certain limitation while continuing to move, so that the efficiency of scraping the scum is low, and the sewage treatment effect of the present application is low.

Disclosure of Invention

In order to improve the efficiency of scraping sediment to sewage surface froth, improve sewage treatment device to sewage treatment's ability, this application provides a municipal administration sewage treatment device and method thereof.

The application provides a municipal sewage treatment equipment and a method thereof, which adopts the following technical scheme:

a municipal sewage treatment device comprises a sewage tank, wherein a plurality of rotating impellers used for floating suspended impurities in sewage are arranged in the sewage tank, a scum scraping component used for scraping scum on the surface of the sewage is arranged above the sewage tank, the scum scraping component comprises a transverse moving part, a lifting part arranged below the transverse moving part and a scum scraping part arranged below the lifting part, scum discharge ports used for scraping scum out of the sewage tank by the scum scraping part are formed in two side walls of the sewage tank, the scum scraping part comprises two scum scraping plates which are vertically arranged, the length directions of the two scum scraping plates are consistent with the width direction of the sewage tank, scum limiting plates are arranged on the side edges of the two scum scraping plates, which are far away from the lifting part, and are bent towards the corresponding scum discharge ports, scum baffles are arranged at two opening parts at two ends of the limiting plates and are rotatably connected to the side walls of the limiting plates, the dross baffle is close to the one end at dross limiting plate edge of buckling and is provided with the rotation axis cover, be provided with the axis of rotation in the axis of rotation cover, axis of rotation one end is inserted and is established into in the dross limiting plate lateral wall and rotate with the dross limiting plate and be connected, the cover is equipped with torque spring in the axis of rotation, torque spring one end torque arm is connected with the dross baffle, another torque arm of torque spring is connected with the dross limiting plate, dross limiting plate is provided with corresponding scum board junction and is used for driving dross limiting plate pivoted rotating assembly.

By adopting the technical scheme, when the scum scraping assembly scrapes off scum on the surface of sewage in the sewage tank, the scum limiting plate is rotated by the rotating assembly, so that the bent edge of the scum limiting plate extends below the surface of the sewage, the contact area between the scum limiting plate and the water surface when the scum limiting plate enters the water surface is minimized as much as possible, and the problem of pressing the scum back into the water again can be effectively solved; the lower surface of the scum limiting plate is rotated to an angle which is flush with the liquid level through the rotation of the rotating assembly, the scum limiting plate continuously collects scum on the surface of the sewage in the sewage tank under the action of the movement of the transverse moving piece and the lifting piece, and the problem that the scum of the traditional flat scum board easily flows back to the sewage again can be effectively solved due to the bent shape; when the scum limiting plate moves to the scum outlet, the scum baffle is abutted by the upper end wall of the scum outlet, so that the scum limiting plate rotates through the rotating shaft, the two ends of the scum limiting plate are opened, the bent part of the scum limiting plate leaves the inside of the sewage tank through the scum outlet, and scum collected in the scum limiting plate is discharged, so that the scum cleaning efficiency of the scum scraping assembly on the surface of sewage is improved, and scum on the surface of the sewage can be discharged more quickly; in addition, when the sideslip subassembly carried out round trip movement in the sewage case top, the dross limiting plate that the two directions is different can reciprocate discharges the dross on sewage case surface from two directions, has further improved the efficiency to the dross clearance, and work efficiency and economic benefits are higher.

Preferably, the runner assembly is including rotating the axle sleeve, rotating the swing arm, two joint rings and driving piece, it sets up in the one side that the scum board deviates from the lift, the length direction who rotates the axle sleeve is unanimous with the length direction who scrapes the scum board, it passes the rotation axle sleeve to rotate the swing arm, two the joint ring overlaps respectively and locates to rotate the both ends that the swing arm stretches out the rotation axle sleeve, two the joint ring all is connected with the dross limiting plate, the driving piece sets up in scum board one side, the driving piece is connected and drives with rotation swing arm one end and rotates the swing arm.

Through adopting the above technical scheme, after starting the driving piece, the output shaft of driving piece drives and rotates the swing arm and rotates, because the limiting displacement of rotation axle sleeve to rotating the swing arm, it rotates together with the dross limiting plate to rotate the swing arm, thereby can do certain control to the rotation of dross limiting plate, this runner assembly simple structure, easy control, thereby can be great degree the improvement this application scrape the clearance speed of sediment subassembly to the inside surface dross of sewage case, degree of automation is higher, the practicality and the convenience of this application have been improved, economic benefits and work efficiency obtain showing and improve.

Preferably, the joint ring includes the annular lock ring of two semicircles, rotate the swing arm tip and insert and establish between two corresponding lock rings, two one side that the lock ring is close to the dross limiting plate all is provided with the connecting plate, be provided with a plurality of fasteners on the connecting plate, the fastener passes the connecting plate and with dross limiting plate threaded connection.

Through adopting above-mentioned technical scheme, divide into the lock ring of two semicircle forms with the joint ring, can be so that the joint ring and rotate and form the mode of dismantling the connection between the swing arm to simplified installation and the maintenance process to the runner assembly, and simple structure, easily realization has improved the practicality and the convenient degree of this application, has higher economic benefits.

Preferably, the cover is equipped with the waterproof case that is used for improving driving piece waterproof performance on the driving piece, the driving piece sets up in the waterproof case, be provided with a plurality of retaining members on the waterproof case, the retaining member pass the waterproof case and with scum board lateral wall threaded connection.

Through adopting the above technical scheme, it carries out the protection of certain degree to the driving piece to set up the waterproof case, the driving piece sets up in sewage incasement portion, in the rotation impeller pivoted of sewage bottom wall, can make the sewage of sewage incasement portion be in a comparatively active state, sewage splashes and infiltrates in the driving piece, just can cause the damage of driving piece, thereby the operation process of sediment subassembly and runner assembly is scraped in the influence, certain potential safety hazard has, through setting up the waterproof case, it is isolated to carry out the driving piece, the security and the economic benefits of this application have been improved, the work efficiency of this application has further been improved.

Preferably, two be provided with the buffer board that is used for improving wearing and tearing between the two dross limiting plates between the scum board, the buffer board is located between two dross limiting plates, the buffer board has all seted up the spigot surface of stepping down towards the both sides side of corresponding dross limiting plate, two the orientation of seting up of the spigot surface of stepping down all is unanimous with corresponding dross limiting plate pivoted orientation.

Through adopting above-mentioned technical scheme, set up the buffer board and can effectively improve corresponding dross limiting plate and excessively rotate because of runner assembly's failure to cause the problem that two dross limiting plates bump, reduced the probability that the potential safety hazard takes place effectively, set up corresponding guidance face of stepping down on the surface of buffer board simultaneously, can further provide certain buffering space for the dross limiting plate, improve the security and the economic benefits of this application when save material.

Preferably, the guide surface is provided with a cushion pad for protecting the scum limiting plate.

Through adopting above-mentioned technical scheme, the material of blotter is the rubber material, sets up the blotter and can carry out certain buffering to the surface of rotating excessive dross limiting plate to the structural integrity of protection dross limiting plate has higher security and economic benefits.

Preferably, the outer side walls of the two ends of the sewage tank are provided with cleaning assemblies for cleaning the surfaces of the scum limiting plates.

Through adopting above-mentioned technical scheme, set up the clearance subassembly and can clear up the internal surface and the surface of dross limiting plate to effectively improve the dross and adhere to in the internal surface or the surface of dross limiting plate, and follow sideslip piece reentrant sewage incasement portion's problem, further improved the efficiency that this application was handled to the inside dross of sewage case, work efficiency and economic benefits can improve.

Preferably, the clearance subassembly includes two fixed plates, two removal lead screws, two removal lantern rings, two clearance cottons and two driving motor, two the fixed plate sets up respectively in row's cinder notch both sides, two it rotates to connect between the fixed plate of both sides to remove the lead screw, it is located between two removal lead screws to arrange the cinder notch two remove the lantern ring and all overlap locate on corresponding removal lead screw and with remove lead screw threaded connection, two the clearance cotton is connected respectively in one side of corresponding removal lantern ring towards the dross limiting plate, two the clearance cotton laminates mutually with the corresponding surface of dross limiting plate respectively, two the driving motor all sets up in the lateral wall that one side fixed plate deviates from another fixed plate, two driving motor's output shaft all is connected with corresponding removal lead screw.

Through adopting above-mentioned technical scheme, after two driving motor start-up, driving motor's output shaft drives corresponding removal lead screw and rotates, thereby through the threaded connection who removes the lead screw and remove the lantern ring, it clears up to the internal surface and the surface of dross limiting plate to drive corresponding clearance cotton, the shape of two clearance cottons and the internal surface of dross limiting plate and the shape of surface are the adaptation each other, thereby can clear up the internal surface and the surface of dross limiting plate better, the cleaning efficiency of this application to the inside dross of sewage case has further been improved, economic benefits and work efficiency are showing and are improving.

Preferably, a water-stop cover for improving sewage splashing is arranged above the sewage tank, and a moving through groove for enabling the slag scraping assembly to move transversely is formed in the surface of the water-stop cover, which is far away from the sewage tank.

Through adopting above-mentioned technical scheme, set up the waterproof case and can effectively improve the inside sewage spill of sewage case to the problem of polluted working environment can effectual protection staff's healthy, and the security is higher.

Preferably, compressed air enters the sewage tank through the air inlet end and flows to the upper part of the corresponding rotating impeller, and under the rotation of the rotating impeller, the compressed air is dispersed and floats towards the water surface;

in the process of air rising, the buoyancy of fine impurities in the sewage is larger than the gravity and the floating resistance by air bubbles formed by the air, so that the impurities in the sewage are driven to the surface of the sewage;

start scrape the sediment subassembly, scrape the in-process of sediment subassembly at the removal, rotating assembly rotates the position of dross limiting plate, through buckling the form the dross limiting plate will the interior sewage surperficial dross of sewage case is collected to it is concentrated inside discharging the sewage case through row cinder notch.

Through adopting above-mentioned technical scheme, effectively collect the dross on the inside sewage surface of sewage case to improved this application and to sewage treatment's efficiency, economic benefits and practicality are showing and are improving.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the arrangement of the bent scum limiting plate can efficiently collect scum on the surface of sewage by hands, and compared with the traditional scum removing plate in a straight state, the scum limiting plate has higher scum removing efficiency on the surface of sewage, so that the effect and the treatment rate of sewage treatment by the scum limiting plate are improved, and the economic benefit and the working efficiency are obviously improved;

2. the dross limiting plate cooperation rotating assembly of buckling the form, the dross limiting plate can pass through rotating assembly's rotation to the mode of fishing for carries out the dross on sewage surface more high-efficiently and collects, thereby has further improved the work efficiency and the practicality of this application.

Drawings

FIG. 1 is a schematic structural view of a municipal sewage treatment apparatus according to an embodiment of the present application.

Fig. 2 is a cross-sectional view a-a of fig. 1.

Fig. 3 is a schematic structural diagram of the slag scraping element according to the embodiment of the application.

Fig. 4 is an exploded view of a dross confinement plate and a dross baffle according to an embodiment of the invention.

Fig. 5 is a partially enlarged view at B in fig. 4.

Fig. 6 is a partially enlarged view at C in fig. 3.

Fig. 7 is a partial enlarged view at D in fig. 2.

Description of reference numerals: 1. a sewage tank; 11. a slag discharge port; 2. rotating the impeller; 3. a slag scraping assembly; 31. a traversing member; 32. a lifting member; 33. a slag scraping piece; 331. a slag scraping plate; 4. a scum limiting plate; 41. a scum baffle; 411. rotating the shaft sleeve; 42. a rotating shaft; 43. a torsion spring; 5. a rotating assembly; 51. rotating the shaft sleeve; 52. rotating the rotary rod; 53. a snap ring; 531. a locking ring; 532. a connecting plate; 533. a fastener; 54. a drive member; 6. a waterproof shell; 61. a locking member; 7. a buffer plate; 71. a abdication guide surface; 72. a cushion pad; 8. cleaning the assembly; 81. a fixing plate; 82. moving the screw rod; 83. moving the collar; 84. cleaning cotton; 85. a drive motor; 9. a water-stop cover; 91. the through groove is moved.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses municipal sewage treatment equipment. Referring to fig. 1 and 2, a municipal sewage treatment apparatus includes a sewage tank 1, and the sewage tank 1 is communicated with a water inlet pipe for discharging sewage and a water outlet pipe for discharging sewage. The inside rotation impeller 2 that is used for stirring sewage that is provided with a plurality of sewage case 1, sewage case 1 still communicates and has a plurality of intake pipes that are used for leading compressed air to corresponding rotation impeller 2. In the present embodiment, the number of the rotary impellers 2 is 2.

Referring to fig. 1, a water-stop cover 9 for improving the splashing of sewage inside the sewage tank 1 is disposed above the sewage tank 1, and the water-stop cover 9 is connected to the sewage tank 1 by welding.

Referring to fig. 2, a scum scraping assembly 3 for scraping scum on the surface of sewage is disposed above the sewage tank 1, and the scum scraping assembly 3 includes a traverse member 31 capable of moving in the length direction of the sewage tank 1, a lifting member 32 disposed on one side of the traverse member 31 facing the inside of the sewage tank 1, and a scum scraping member 33 disposed on one side of the lifting member 32 facing away from the traverse member 31. The upper surface of the water-stop cover 9 is provided with a through groove 91 corresponding to the transverse moving piece 31 for the transverse moving piece 31 to move and move. The side walls of the two ends of the sewage tank 1 are provided with slag discharge ports 11 for the slag scraping component 3 to discharge the scum out of the sewage tank 1, and the slag discharge ports 11 are positioned above the water inlet pipe and the water outlet pipe. In this embodiment, the traverse member 31 and the lift member 32 each employ an air cylinder as the moving means.

Referring to fig. 2 and 3, the slag scraping member 33 includes two vertically arranged slag scraping plates 331, a length direction of the slag scraping plates 331 is identical to a width direction of the waste water tank 1, and the two slag scraping plates 331 are connected to a side of the lifting member 32 away from the traverse member 31 by welding. One side that two scum boards 331 deviate from lift 32 all is provided with the dross limiting plate 4 that is used for improving collection efficiency to the sewage surface, and two dross limiting plates 4 are the form of buckling, and buckle the direction and all buckle towards the 11 directions of row's cinder notch of corresponding direction. Dross limiting plate 4 through the form of buckling can collect sewage surface's dross more high-efficiently, and has effectively improved the difficult problem of being scraped of dross to the work efficiency and the economic benefits of this application can improve.

Referring to fig. 4 and 5, dross limiting plate 4 both ends end wall all is provided with and is used for improving the dross and passes through the dross baffle 41 that the dross flows out at 4 both ends of dross limiting plate, dross baffle 41 is close to the one end integrated into one piece of dross limiting plate 4 side of buckling and is provided with rotation axle sleeve 411, it has rotation axis 42 to rotate the inside welded connection that passes through of axle sleeve 411, the one end that rotation axis 42 stretches out driving axle sleeve 411 is inserted and is established in 4 lateral walls of dross limiting plate and rotate with dross limiting plate and be connected, the cover is equipped with the torque spring 43 that is used for dross baffle 41 of being convenient for to reset on the rotation axis 42, torque spring 43 one end torque arm passes through sticky fixed connection with dross limiting plate 4, another end torque arm is through sticky and dross baffle 41 fixed connection.

Referring to fig. 3 and 6, a rotating assembly 5 for changing the opening angle of the dross confinement plates 4 is disposed between each of the two dross confinement plates 331 and the corresponding dross confinement plate 4. The rotating assembly 5 includes a rotating sleeve 51, a rotating lever 52, two snap rings 53 and a driving member 54. The rotary sleeve 51 is connected to a side wall of the scraper plate 331 facing the dross confinement plate 4 by welding, and a length direction of the rotary sleeve 51 is identical to a length direction of the scraper plate 331. The rotation lever 52 is inserted into the rotation shaft sleeve 51 and is rotatably connected to the rotation shaft sleeve 51.

Referring to fig. 3 and 6, the clamping ring 53 includes two half circular ring-shaped locking rings 531, the two locking rings 531 are spliced with each other, the two ends of the rotary rod 52 extending out of the rotary shaft sleeve 51 are inserted between the two locking rings 531, the two locking rings 531 are connected through bolts, and the size of the opening in the middle of the two locking rings 531 is matched with the diameter of the rotary rod 52. Two lock rings 531 have connecting plate 532 towards the equal integrated into one piece in one side of dross limiting plate 4, are provided with a plurality of fasteners 533 on the connecting plate 532, and a plurality of fasteners 533 pass connecting plate 532 and with 4 threaded connection of dross limiting plate to make and form detachable connection between dross limiting plate 4 and the runner assembly 5, improved convenient degree and the economic benefits of this application installation. In this embodiment, the fastening member 533 is a fastening bolt.

Referring to fig. 6, the driving member 54 is disposed on a side wall of the slag scraping plate 331 by bolts, a waterproof case 6 for isolating the driving member 54 from contacting with sewage is sleeved outside the driving member 54, a plurality of locking members 61 are disposed on a surface of the waterproof case 6, and the plurality of locking members 61 pass through the waterproof case 6 and are in threaded connection with the slag scraping plate 331. In this embodiment, the locking member 61 is a locking bolt; the driving part 54 comprises a driving gear, a driven gear and a driving motor, the driving motor is connected to the side wall of the slag scraping plate 331 through a bolt, the driving gear is sleeved on an output shaft of the driving motor, the driven gear is meshed with the driving gear, the driven gear is sleeved on one end of the rotating rotary rod 52, and the rotating rotary rod 52 is driven to rotate through the meshing between the driving gear and the driven gear.

Referring to fig. 3 and 6, a buffer plate 7 for improving abrasion between the two dross confinement plates 4 is disposed between the two dross confinement plates 331, a length direction of the buffer plate 7 is identical to a length direction of the dross confinement plates 331, and two side surfaces of the buffer plate 7 are respectively connected by welding to corresponding sidewalls of the dross confinement plates 331. The surface of the buffer plate 7 extending out of the two scum limiting plates 331 is provided with abdicating guide surfaces 71 capable of buffering the scum limiting plates 4 which rotate excessively, and the abdicating guide surfaces 71 are arranged in the same direction as the rotation direction of the corresponding scum limiting plates 4 departing from the scum outlet 11. In this embodiment, each abdicating guide surface 71 is internally connected with a cushion pad 72 for buffering the scum limiting plate 4 through glue, and the cushion pad 72 is made of rubber.

Referring to fig. 2 and 7, the side walls of both ends of the sewage tank 1 are provided with cleaning assemblies 8 for cleaning the inner and outer surfaces of the dross confinement plates 4. The cleaning assembly 8 comprises two fixing plates 81, two movable screw rods 82, two movable lantern rings 83, two cleaning cottons 84 and two driving motors 85, the two fixing plates 81 are connected to the end wall of the sewage tank 1 through welding, and the two fixing plates 81 are respectively positioned at the two ends of the slag discharging port 11 on the corresponding side wall in the length direction; the two movable screw rods 82 are rotatably connected between the two fixed plates 81, and the two movable screw rods 82 are respectively located at two sides of the width direction of the slag discharge port 11 on the corresponding side wall. In this embodiment, a bearing for improving wear between the fixed plate 81 and the movable screw 82 is disposed at a joint of the fixed plate 81 and the movable screw 82, an outer ring of the bearing is fixedly connected with the fixed plate 81 by welding, and an inner ring of the bearing is in interference fit with an end of the movable screw 82.

Referring to fig. 2 and 7, the two movable collars 83 are respectively sleeved on the corresponding movable screw rods 82 and are in threaded connection with the movable screw rods 82; the two pieces of cleaning cotton 84 are respectively connected to one side of the movable collar 83 facing the scum limiting plate 4 through glue, and the shapes of the two pieces of cleaning cotton 84 are respectively matched with the inner surface and the outer surface of the scum limiting plate 4. The two driving motors 85 are connected to the outer side wall of the fixing plate 81 on one side through bolts, and the output shafts of the two driving motors 85 are connected to the end walls of the corresponding movable screw rods 82. Clear up through setting up clearance subassembly 8 internal surface and the surface of dross limiting plate 4, can effectively improve the dross that attaches to 4 internal surfaces of dross limiting plate or surface and follow sideslip piece 31 reentrant sewage case 1 in and enter into sewage, reduce the problem of dross cleaning efficiency, further improved the cleaning efficiency of this application to the dross, the work efficiency and the economic benefits of this application can show the improvement.

The embodiment of the application provides a municipal sewage treatment equipment's implementation principle does: the compressed air is decomposed by the rotating impeller 2 in the sewage tank 1, and scum in the sewage is subjected to 1 air flotation by the decomposed air, so that more scum in the sewage is gathered on the surface of the sewage.

When scraping the dross on sewage surface, lift 32 will scrape sediment piece 33 and descend to the sewage surface, cooperate with lift 32 through rotating assembly 5, make dross limiting plate 4 take place certain rotation, thereby make dross limiting plate 4 can get into under the sewage surface with littleer area of contact, and further rotation through rotating assembly 5 mutually supports with the removal of sideslip piece 31, thereby make the dross limiting plate 4 of buckling form can carry out better collection and discharge through row cinder notch 11 to the dross on sewage surface, improved this application to sewage surface dross cleaning efficiency and work efficiency.

After the dross limiting plate 4 moves to the slag discharge hole 11, the dross baffle 41 touches the side of the slag discharge hole 11, so as to rotate the dross baffle 41, the rotation will make the torsion spring 43 accumulate the elasticity, after the dross limiting plate 4 leaves the slag discharge hole 11, the dross baffle 41 will rotate, and the opening at the two ends of the dross limiting plate 4 is sealed again.

After dross limiting plate 4 discharged dross through row cinder notch 11, can clear up the internal surface and the surface of dross limiting plate 4 through clearance subassembly 8 to inside the removal reentrant sewage case 1 of sideslip piece 31 is followed to dross limiting plate 4 surperficial dross of adhering to has effectively been improved, caused the problem that dross cleaning efficiency reduces, further improved the work efficiency of this application.

The utility model provides a municipal administration sewage treatment device compares traditional straight type scum board, can collect sewage surface's dross more effectively, improves cleaning efficiency and work efficiency to sewage surface dross.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a municipal administration sewage treatment device, includes sewage case (1), sewage case (1) inside is provided with a plurality of rotation impeller (2) that are used for carrying out the come-up with the suspended impurity in the sewage, sewage case (1) top is provided with and is used for scraping sediment subassembly (3) of scraping that the foam was removed on sewage surface, scrape sediment subassembly (3) including sideslip piece (31), set up in lift piece (32) of sideslip piece (31) below and set up in scraping sediment piece (33) of lift piece (32) below, sewage case (1) both sides wall has all been seted up and has been supplied to scrape sediment piece (33) and scrape row's cinder notch (11) of sewage case (1) with the dross, its characterized in that: the scum part (33) comprises two scum boards (331) which are vertically arranged, the length directions of the scum boards (331) are consistent with the width direction of the sewage tank (1), one side edges of the scum boards (331) departing from the lifting part (32) are provided with scum limiting plates (4), the scum limiting plates (4) are bent towards the corresponding scum outlet (11), scum baffles (41) are arranged at openings at two ends of the scum limiting plates (4), the scum baffles (41) are rotatably connected with the side walls of the scum limiting plates (4), one ends of the scum baffles (41) close to the bent edges of the scum limiting plates (4) are provided with rotating shaft sleeves (411), rotating shafts (42) are arranged in the rotating shaft sleeves (411), one ends of the rotating shafts (42) are inserted into the side walls of the scum limiting plates (4) and are rotatably connected with the scum limiting plates (4), the cover is equipped with torque spring (43) on axis of rotation (42), torque spring (43) one end torque arm is connected with dross baffle (41), another torque arm of torque spring (43) is connected with dross limiting plate (4), dross limiting plate (4) and corresponding scum board (331) junction are provided with and are used for driving dross limiting plate (4) pivoted rotating assembly (5).

2. The municipal sewage treatment apparatus of claim 1, wherein: the rotating assembly (5) comprises a rotating shaft sleeve (51), a rotating rotary rod (52), two clamping rings (53) and a driving piece (54), the rotating shaft sleeve (51) is arranged on one side, deviating from the lifting piece (32), of the scum board (331), the length direction of the rotating shaft sleeve (51) is consistent with that of the scum board (331), the rotating rotary rod (52) penetrates through the rotating shaft sleeve (51), and the clamping rings (53) are respectively sleeved at two ends, extending out of the rotating shaft sleeve (51), of the rotating rotary rod (52) and are connected with scum limiting plates (4), the driving piece (54) is arranged on one side of the scum board (331), and the driving piece (54) is connected with one end of the rotating rotary rod (52) and drives the rotating rotary rod (52) to rotate.

3. The municipal sewage treatment apparatus of claim 2, wherein: the clamping ring (53) comprises two half-circular annular locking rings (531), the end part of the rotary rod (52) is inserted between the two corresponding locking rings (531), two one side of each locking ring (531) close to the scum limiting plate (4) is provided with a connecting plate (532), a plurality of fasteners (533) are arranged on the connecting plate (532), and the fasteners (533) pass through the connecting plate (532) and are in threaded connection with the scum limiting plate (4).

4. The municipal sewage treatment apparatus of claim 2, wherein: the cover is equipped with waterproof case (6) that is used for improving driving piece (54) waterproof performance on driving piece (54), driving piece (54) set up in waterproof case (6), be provided with a plurality of retaining members (61) on waterproof case (6), retaining member (61) pass waterproof case (6) and with scum board (331) lateral wall threaded connection.

5. The municipal sewage treatment apparatus of claim 4, wherein: two be provided with between scum board (331) and be used for improving buffer board (7) of wearing and tearing between two scum limiting plate (4), buffer board (7) are located between two scum limiting plate (4), buffer board (7) all have been seted up towards the both sides side of corresponding scum limiting plate (4) and have been abducted spigot surface (71), two the orientation of seting up of abducting spigot surface (71) all is unanimous with corresponding scum limiting plate (4) pivoted orientation.

6. The municipal sewage treatment apparatus of claim 5, wherein: and a buffer pad (72) for protecting the scum limiting plate (4) is arranged on the yielding guide surface.

7. The municipal sewage treatment apparatus of claim 1, wherein: the outer side walls of the two ends of the sewage tank (1) are respectively provided with a cleaning assembly (8) for cleaning the surfaces of the scum limiting plates (4).

8. The municipal sewage treatment apparatus of claim 7, wherein: the cleaning assembly (8) comprises two fixing plates (81), two movable screw rods (82), two movable lantern rings (83), two cleaning cottons (84) and two driving motors (85), wherein the two fixing plates (81) are respectively arranged at two sides of the slag discharge port (11), the two movable screw rods (82) are rotatably connected between the fixing plates (81) at two sides, the slag discharge port (11) is positioned between the two movable screw rods (82), the two movable lantern rings (83) are respectively sleeved on the corresponding movable screw rods (82) and are in threaded connection with the movable screw rods (82), the two cleaning cottons (84) are respectively connected at one side of the corresponding movable lantern rings (83) facing the scum limiting plate (4), the two cleaning cottons (84) are respectively attached to the corresponding surfaces of the scum limiting plate (4), and the two driving motors (85) are respectively arranged on the side wall of one side fixing plate (81) which is deviated from the other fixing plate (81), the output shafts of the two driving motors (85) are connected with corresponding movable screw rods (82).

9. The municipal sewage treatment apparatus of claim 1, wherein: a water-stop cover (9) used for improving sewage splashing is arranged above the sewage tank (1), and a moving through groove (91) for the transverse movement of the slag scraping assembly (3) is formed in the surface of the water-stop cover (9) departing from the sewage tank (1).

10. The municipal sewage treatment method according to claim 4, wherein: compressed air enters the sewage tank (1) through an air inlet end and flows to the upper part of the corresponding rotating impeller (2), and under the rotation of the rotating impeller (2), the compressed air is dispersed and floats towards the water surface;

start scrape sediment subassembly (3), scrape the in-process of sediment subassembly (3) at the removal, rotating assembly (5) rotate the position of dross limiting plate (4), through buckling the form dross limiting plate (4), will sewage case (1) interior sewage surface's dross is collected to concentrate inside through row's cinder notch (11) discharge sewage case (1).