CN112978952A - Municipal administration sewage treatment system - Google Patents
Municipal administration sewage treatment system Download PDFInfo
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- CN112978952A CN112978952A CN202110082838.XA CN202110082838A CN112978952A CN 112978952 A CN112978952 A CN 112978952A CN 202110082838 A CN202110082838 A CN 202110082838A CN 112978952 A CN112978952 A CN 112978952A
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- 239000010865 sewage Substances 0.000 title claims abstract description 80
- 239000004576 sand Substances 0.000 claims abstract description 58
- 239000013049 sediment Substances 0.000 claims abstract description 17
- 239000002893 slag Substances 0.000 claims description 63
- 238000001914 filtration Methods 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 238000007790 scraping Methods 0.000 claims description 36
- 238000011010 flushing procedure Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 12
- 239000010791 domestic waste Substances 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 36
- 239000012535 impurity Substances 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 5
- 239000010813 municipal solid waste Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 238000007667 floating Methods 0.000 description 8
- 239000008187 granular material Substances 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The utility model relates to a municipal administration sewage treatment system, it includes the preliminary treatment pond, is equipped with coarse filter tank and desanding pool in the preliminary treatment pond, is equipped with the intercommunication mouth between coarse filter tank and the desanding pool, is equipped with coarse filter device, desanding device in coarse filter tank, the desanding pool respectively, and desanding device includes fixed frame, grid rotary drum, collection sediment fill, a conveying cylinder, carries axle, helical blade and second motor, and grid rotary drum and intercommunication mouth intercommunication are equipped with the sand discharge mouth on the conveying cylinder. When this application uses, sewage filters through rough filter equipment, flow into the desanding pond and get into the bars net rotary drum by the intercommunication mouth, the second motor drives carries the axle, bars net rotary drum and helical blade rotate, the tiny particle impurity in the sewage is held back by the bars net rotary drum, and drop to the scum hopper along with its rotation in, carry to row's sand mouth by helical blade again and discharge, the preliminary treatment of this application is gone on in preliminary treatment pond, need not to use the elevator pump, the automatic output of debris of its interception, it is big to have the area that reduces processing apparatus, the effect of improvement sewage treatment efficiency.
Description
Technical Field
The application relates to the technical field of sewage treatment, in particular to a municipal sewage treatment system.
Background
The municipal sewage refers to sewage such as domestic sewage, hospital sewage, industrial sewage and the like collected by a sewer system, the municipal sewage needs to treat pollutants such as suspended solid pollutants, organic pollutants and the like in the sewage by a sewage treatment technology and can be discharged after reaching the standard, and common sewage treatment methods comprise a physical treatment method, a biological treatment method, sludge treatment generated by sewage treatment, a chemical treatment method and the like.
At present, the Chinese patent application with publication number CN106946409A discloses a municipal sewage treatment device, which comprises a grid, a grit chamber, a filter tank, a primary biological tank, a secondary biological tank, a sedimentation tank and a disinfection tank which are sequentially communicated, wherein a sewage inlet is arranged on the grid, a water pump for pumping water into the filter tank is connected to the grit chamber, a rotary screen is arranged in the filter tank, aeration devices are respectively connected to the primary biological tank and the secondary biological tank, and a dosing device and a purified water outlet are connected to the disinfection tank. Municipal administration sewage gets into the grid by sewage entry, and domestic waste in the sewage is intercepted by the grid back, gets into grit chamber and filtering ponds to the large granule thing of this interception aquatic carries out the preliminary treatment, gets into one-level biological pond, second grade biological pond in proper order again and carries out biological treatment, with the organic matter of getting rid of in the sewage, deposits through the sedimentation tank again to it carries out deep purification in the disinfection pond and discharges, realizes the purification treatment of sewage. However, the pretreatment process in the above scheme is performed in three treatment units, resulting in a large floor area of the treatment device, and the sewage needs to be lifted by the water pump, and impurities intercepted by each unit are cleaned respectively, so that the pretreatment process is complicated, and the sewage treatment efficiency is reduced.
In view of the above-mentioned related art, the inventor believes that there are disadvantages that the floor space of the treatment apparatus is large and the sewage treatment efficiency is low.
Disclosure of Invention
In order to reduce that processing apparatus's area is big to improve sewage treatment efficiency, this application provides a municipal sewage treatment system.
The application provides a municipal sewage treatment system adopts following technical scheme:
a municipal sewage treatment system comprises a pretreatment tank, wherein a partition wall is arranged in the pretreatment tank, a rough filtration tank and a desanding tank are respectively arranged at two sides of the partition wall, a communication port is arranged at the bottom of the partition wall, a rough filtration device used for filtering domestic garbage in sewage is arranged in the rough filtration tank, a desanding device is obliquely arranged in the desanding tank, the desanding device comprises a fixed frame fixedly arranged in the desanding tank, a grid rotary drum rotationally connected with the fixed frame, a slag collecting hopper fixedly arranged in the grid rotary drum, a conveying cylinder extending from the fixed frame to the upper side of the desanding tank, a conveying shaft rotationally arranged in the slag collecting hopper and the conveying cylinder, a helical blade fixedly connected with the conveying shaft and a second motor used for driving the conveying shaft to rotate, the lower end of the grid rotary drum is communicated with the communication port, the grid mesh rotary drum is fixedly connected with the conveying shaft, and one end, far away from the fixed frame, of the conveying drum is provided with a sand discharge port.
By adopting the technical scheme, when in use, sewage enters the pretreatment tank from the rough filtering tank, the rough filtering device intercepts domestic garbage carried in the sewage, the sewage passing through the rough filtering device directly flows into the sand removing tank from the communicating port and enters the grid mesh rotary drum from the lower end of the fixing frame, at the moment, the second motor is started, the second motor drives the conveying shaft to rotate, the conveying shaft drives the grid mesh rotary drum and the spiral blades to rotate, impurities such as smaller particles, sand grains and the like in the sewage are intercepted by the grid mesh rotary drum and rotate along with the grid mesh rotary drum, the small particle impurities rotate to the upper part of the slag collecting hopper and fall into the slag collecting hopper under the action of gravity, at the moment, the rotating spiral blades upwards convey the small particle impurities and discharge the small particle impurities from the sand discharge port through the conveying cylinder, so as to filter and remove the impurities carried in the sewage, the sewage continuously flows forwards through the grid mesh rotary drum and can be discharged into the next treatment unit for treatment, with this preliminary treatment that realizes sewage, the preliminary treatment process of this application goes on in same preliminary treatment pond, and the sewage after the coarse filter tank filters directly gets into the grit removal pond by the intercommunication mouth, need not to use the elevator pump, and the debris that the sand removal device will intercept are carried out preliminary treatment pond automatically, and it is big to have reduced processing apparatus's area effectively to improve sewage treatment efficiency.
Optionally, the mesh diameter of the lower end of the grid drum is smaller than the mesh diameter of the higher end of the grid drum, the lower end of the grid drum is fixedly provided with the bottom frame, the desanding tank is internally provided with an inclined plate, the higher end of the inclined plate is communicated with the communicating port, and the lower end of the inclined plate extends into the bottom frame.
Through adopting above-mentioned technical scheme, sewage in the coarse filtration pond passes through the intercommunication mouth to get into the bars net rotary drum through the swash plate water conservancy diversion, the great particulate matter of sand grain isopycnic in the sewage easily takes place to deposit, and fall in the lower end of bars net rotary drum, the underframe that sets up this moment intercepts the sand grain that deposits in the bars net rotary drum, and the mesh diameter of the lower end of bars net rotary drum is less than its higher end, reduced the possibility that the sand grain that deposits spills the bars net rotary drum effectively, be favorable to improving the sand removal efficiency of bars net rotary drum.
Optionally, the slag collecting hopper is flared upwards, a material turning plate is fixed in the grid mesh rotating cylinder and is obliquely arranged, and the oblique direction of the material turning plate is consistent with the rotation direction of the grid mesh rotating cylinder.
By adopting the technical scheme, when the small-particle sundries are intercepted by the grid mesh rotary drum, the small-particle sundries fall on the inner wall of the grid mesh rotary drum, and when the grid mesh rotary drum rotates, the obliquely arranged material turning plate blocks the small-particle sundries, so that the possibility that the small-particle sundries slide along the inner wall of the grid mesh rotary drum is effectively reduced; the slag collecting hopper is arranged in an opening expanding shape, so that small-particle impurities can fall into the slag collecting hopper along the material turning plate, and the collecting efficiency of filter residues is effectively improved.
Optionally, a cleaning assembly is arranged on the sand removing device, the cleaning assembly comprises a high-pressure water pump, a flushing pipe and a spray head which are sequentially communicated, the flushing pipe is arranged in parallel with the grid mesh rotary drum, and the spraying direction of the spray head faces the slag collecting hopper; and the two sides of the flushing pipe are fixedly provided with slag removing plates, and the slag removing plates are provided with brushes for cleaning the grid mesh rotary drum.
By adopting the technical scheme, small-particle impurities fall into the slag collecting hopper by gravity, and after the grid mesh rotary drum is rotated away from the slag collecting hopper, the small-particle impurities are inevitably adhered to the grid mesh rotary drum; the arranged hairbrush can clean dust adhered to the grid mesh rotary drum and has the effect of keeping the grid mesh rotary drum clean.
Optionally, the desanding pool is far away from a sliding groove is formed in the inner side wall of one side of the communicating port, a floating plate is arranged in the sliding groove in a sliding mode, a flexible pipe is fixedly connected to the water inlet end of the high-pressure water pump, and the water inlet end of the flexible pipe is fixedly arranged on the bottom surface of the floating plate.
By adopting the technical scheme, the high-pressure water pump pumps the water pretreated in the grit removal tank through the flexible pipe so as to wash away small-particle impurities adhered to the grid mesh rotary drum, so that the internal circulation of the water is realized, and the recycling efficiency of the water is improved; the floating plate floats on the water surface all the time, ensures that the water inlet of the flexible pipe is always positioned in the supernatant of the pretreated water, prevents sediment at the bottom from entering the high-pressure water pump to cause damage, and has the effect of protecting the high-pressure water pump.
Optionally, the coarse filtration device including fixed set up in mount, rotation in the coarse filtration pond set up in first commentaries on classics roller in the mount, rotate set up in second in the coarse filtration pond changes the roller, around locating first commentaries on classics roller reaches chain net on the second commentaries on classics roller and be used for the drive first motor of changeing the roller, the second changes the roller and locates below the surface of water, be equipped with the fortune sediment subassembly that is used for transporting the filter residue on the preliminary treatment pond.
Through adopting above-mentioned technical scheme, after sewage got into the coarse filter tank, the chain net was filtered the domestic waste in to the sewage and is held back, starts first motor this moment, and first motor drives first commentaries on classics roller and rotates, and first commentaries on classics roller drive chain net and second change the roller and rotate to this takes out the coarse filter tank with the domestic waste who holds back on the chain net, and drops to sending out the preliminary treatment pond in transporting the sediment subassembly, realizes the separation and the getting rid of domestic waste in the sewage.
It is optional, be equipped with fortune sediment subassembly on the preliminary treatment pond, fortune sediment subassembly includes first pivot, second pivot, first conveyer belt, second conveyer belt, thick sediment fill and thin sediment fill, first pivot with the second pivot rotate respectively set up in the both sides in preliminary treatment pond, first conveyer belt with second conveyer belt parallel arrangement to all around locating first pivot reaches in the second pivot, just first conveyer belt is located the downside of first commentaries on classics roller, the second conveyer belt is located the downside of sand discharge opening, thick sediment fill set up in the downside of first conveyer belt, thin sediment fill set up in the downside of second conveyer belt, just first commentaries on classics roller with be equipped with between the first pivot and be used for the drive first pivot pivoted linkage subassembly.
Through adopting above-mentioned technical scheme, because the downside of first commentaries on classics roller is located to first conveyer belt, the domestic waste that rough filter sent falls on first transport, the downside of sand discharge mouth is located to the second conveyer belt, the granule debris that desanding device discharges falls on the second transport, when first motor starts, first commentaries on classics roller passes through linkage assembly and drives first pivot and rotate, first conveyer belt is driven to first pivot, second conveyer belt and second pivot rotate, with this carry the domestic waste on the first transport to the coarse sediment fill in, the granule debris that the second was carried is carried to the fine sediment fill in, realize the automatic of the interior debris of preliminary treatment pond and send out, when the coarse sediment fill or the fine sediment fill in the filter residue, pour the filter residue can, moreover, the steam generator is simple in structure, and convenient operation.
Optionally, a sand discharge cover and a return pipe are fixedly mounted on the conveying cylinder, the sand discharge cover is arranged around the sand discharge port, and an opening of the sand discharge cover faces the second conveying belt; the backflow pipe is arranged on one side, close to the grid mesh rotary drum, of the sand discharge cover, one end of the backflow pipe is communicated with the interior of the higher end of the conveying cylinder, and the other end of the backflow pipe extends into the grid mesh rotary drum.
By adopting the technical scheme, when the small-particle sundries are discharged from the sand discharge port, the small-particle sundries fall onto the second conveying belt through the sand discharge cover, and the obstruction of the sand discharge cover effectively prevents the small-particle sundries from rushing out of the second conveying belt, so that the output effect of the small-particle sundries is ensured; before the small-particle sundries are discharged from the sand discharge port, the carried water is guided into the grid mesh rotary drum through the return pipe and is subjected to subsequent treatment after being filtered by the grid mesh rotary drum, so that the water content of the small-particle sundries is effectively reduced, and the waste of water resources is reduced.
Optionally, the linkage subassembly includes the cover is established and fixed connection's double flute band pulley on the first commentaries on classics roller rotate on the preliminary treatment pond establish the dwang of setting the cover is established and fixed connection's band pulley on the dwang double flute band pulley with around the first belt of establishing between the band pulley fixed connection's worm on the dwang and fixed connection's worm wheel is established to the cover in the first pivot, the worm wheel with the worm meshing.
By adopting the technical scheme, when the first motor is started, the first motor drives the first rotating roller to rotate, the first rotating roller drives the double-groove belt wheel to rotate, the double-groove belt wheel drives the rotating rod to rotate through the first belt and the conveying belt wheel, the rotating rod drives the worm to rotate, and the worm is meshed with the worm wheel at the moment to rotate the worm wheel so as to drive the first rotating shaft to rotate, so that the first motor drives the first rotating shaft to rotate through the linkage assembly, the slag conveying assembly and the coarse filtering device synchronously work, and the filter residues of the coarse filtering device and the sand removing device are ensured to be continuously output; and the slag conveying assembly does not need to be specially provided with a motor, so that the equipment cost is reduced.
Optionally, rotate on the mount and be provided with the scraping roller, the scraping roller is located the chain net with between the first conveyer belt, and with first commentaries on classics roller parallel arrangement, the fixed a plurality of poles of scraping that are provided with on the roll surface of scraping roller, scrape the pole with the chain net reaches first conveyer belt all contacts, the cover is established and fixedly connected with scraping belt wheel on the scraping roller, the double flute band pulley with around being equipped with the second belt between the scraping belt wheel.
Through adopting above-mentioned technical scheme, when the colating device during operation, the winding of being difficult for on the chain net has domestic waste to influence rivers and passes through, and first cylinder drove the rotation of double flute band pulley this moment, and the double flute band pulley passes through the second belt and drives scraping belt pulley and scraping roller rotation, and the scraping pole rotates along with scraping roller to constantly dial the rubbish of adhesion on the chain net and leave to first conveyer belt on, keep the cleanness of chain net with this, guaranteed that rivers are unblocked in the colating tank.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the device is used, sewage enters the rough filtering tank, is filtered by the rough filtering device, flows into the desanding tank through the communication port, enters the grid rotating drum, and starts the second motor to drive the conveying shaft, the grid rotating drum and the spiral blades to rotate, the grid rotating drum intercepts impurities such as smaller particles and sand grains in the sewage, the small particle impurities rotate along with the grid rotating drum and fall into the slag collecting hopper, and then are conveyed upwards to the sand discharge port by the spiral blades to be discharged;
2. after the sewage enters the rough filtering tank, the chain net filters and intercepts the domestic garbage in the sewage, the first motor is started to drive the first rotating roller to rotate, the first rotating roller drives the chain net and the second rotating roller to rotate, and then the domestic garbage can be fished out of the rough filtering tank to realize rough filtering of the sewage;
3. the household garbage sent by the coarse filtering device falls onto a first conveying device, small particle sundries discharged by the sand removing device fall onto a second conveying device, when a first motor is started, the first motor drives a first rotating roller and a double-groove belt wheel to rotate, the double-groove belt wheel drives a conveying belt wheel, a rotating rod and a worm to rotate through a first belt, a worm wheel is meshed with the worm to rotate, and then the first rotating shaft is driven to rotate, so that the slag conveying assembly and the coarse filtering device work synchronously; at the moment, the first rotating shaft drives the first conveying belt, the second conveying belt and the second rotating shaft to rotate, so that the domestic garbage conveyed by the first conveying belt is conveyed into the coarse slag hopper, and the small-particle sundries conveyed by the second conveying belt are conveyed into the fine slag hopper, so that the sundries in the pretreatment tank are automatically conveyed out.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application.
Fig. 2 is a schematic view of the internal structure of the application example.
FIG. 3 is a schematic structural diagram of a sand removing device in the application example.
Fig. 4 is a partially enlarged schematic view of a portion a in fig. 2.
Fig. 5 is a partially enlarged schematic view of a portion B in fig. 1.
Description of reference numerals: 1. a pretreatment tank; 11. a partition wall; 111. a communication port; 12. a coarse filtration tank; 13. a sand removal tank; 131. a sloping plate; 132. a chute; 2. a coarse filtration device; 21. a fixed mount; 22. a first rotating roller; 23. a second rotating roller; 24. a chain net; 25. a first motor; 3. a sand removal device; 31. a fixing frame; 32. a delivery cartridge; 321. a sand discharge port; 322. a sand discharge cover; 323. a return pipe; 33. a slag collection hopper; 34. a delivery shaft; 35. a helical blade; 36. a grid mesh rotating drum; 361. a material turning plate; 362. a bottom frame; 363. a filtration pore; 37. a second motor; 4. cleaning the assembly; 41. a high pressure water pump; 411. a floating plate; 412. a flexible tube; 42. a flush tube; 43. a spray head; 44. a slag removal plate; 441. a brush; 5. a slag conveying assembly; 51. a first rotating shaft; 52. a second rotating shaft; 53. a first conveyor belt; 54. a second conveyor belt; 55. a coarse slag hopper; 56. a fine slag hopper; 6. a linkage assembly; 61. a double-groove belt pulley; 62. rotating the rod; 63. a conveyor belt pulley; 64. a first belt; 65. a worm; 66. a worm gear; 67. a second belt; 68. scraping belt wheels; 7. a scraping roller; 71. a scraping rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses municipal sewage treatment system. Referring to fig. 1, the municipal sewage treatment system comprises a pretreatment tank 1, a coarse filtration device 2, a sand removal device 3, a cleaning assembly 4, a slag transport assembly 5, and a linkage assembly 6. The pretreatment tank 1 is rectangular and has an upward opening. Referring to fig. 2, a partition wall 11 is built in the pretreatment tank 1, and a rough filtration tank 12 and a desanding tank 13 are respectively arranged at two sides of the partition wall 11. The bottom of the partition wall 11 is provided with a communication port 111, and the opening of the communication port 111 is rectangular.
Referring to fig. 2, coarse filtration device 2 is provided in coarse filtration tank 12, and coarse filtration device 2 includes a fixed frame 21, a first rotating roller 22, a second rotating roller 23, a chain net 24, and a first motor 25. The fixing frame 21 is fixedly arranged in the coarse filtration tank 12, the first rotating roller 22 and the second rotating roller 23 are arranged in parallel, the first rotating roller 22 is rotatably connected with the fixing frame 21, and the second rotating roller 23 is rotatably connected with the coarse filtration tank 12. The chain net 24 is wound on the first rotating roller 22 and the second rotating roller 23, and the side wall of the chain net 24 is attached to the inner wall of the coarse filtration tank 12. The first motor 25 is fixedly mounted on the fixing frame 21, and an output shaft thereof is fixedly connected with the first rotating roller 22. During the use, sewage gets into coarse filtration pond 12, and second commentaries on classics roller 23 is located the below water surface, and the chain net 24 filters the domestic waste in the sewage and holds back this moment, starts first motor 25, makes it drive first commentaries on classics roller 22 and rotates, and first commentaries on classics roller 22 drives chain net 24 and second commentaries on classics roller 23 and rotates, can fish out the coarse filtration pond 12 with domestic waste, realizes the coarse filtration of sewage.
Referring to fig. 2 and 3, the desanding device 3 is disposed in the desanding pool 13, and the desanding device 3 includes a fixing frame 31, a conveying cylinder 32, a slag collecting hopper 33, a conveying shaft 34, a spiral blade 35, a grid drum 36, and a second motor 37. The fixing frame 31 is a cylindrical frame structure, and is fixedly installed in the desanding pool 13, and the side wall of the fixing frame is attached to the inner wall of the desanding pool 13. The fixing frame 31 is obliquely disposed, and a lower end thereof is disposed near the communication opening 111. The transfer cylinder 32 is cylindrical, is fixedly connected to the upper end of the fixed frame 31, and has an axis coinciding with the axis of the fixed frame 31. The higher end of the conveying cylinder 32 is provided with a sand discharge port 321, and the opening of the sand discharge port 321 faces downwards. The cross section of the slag collecting hopper 33 is trapezoidal, and the inner part of the slag collecting hopper is hollow and has an upward opening. The slag collection hopper 33 is fixedly installed in the fixed frame 31, and has a longitudinal direction that coincides with the longitudinal direction of the fixed frame 31 and communicates with the conveying cylinder 32. The conveying shaft 34 is cylindrical, is rotatably provided in the slag collection hopper 33 and the conveying cylinder 32, and has a rotation axis coinciding with a rotation axis of the conveying cylinder 32. The spiral blade 35 is wound on the cylindrical surface of the conveying shaft 34 and is fixedly connected with the conveying shaft 34. The second motor 37 is fixedly mounted at the upper end of the delivery cylinder 32, and its output shaft is fixedly connected to the delivery shaft 34. The screen drum 36 is cylindrical, and has an axis overlapping with an axis of the fixed frame 31 and rotatably provided in the fixed frame 31, and the screen drum 36 is fixedly connected to the conveying shaft 34, and has an opening at a lower end communicating with the communication port 111. The sewage in the coarse filter tank 12 flows into the desanding tank 13 through the communication port 111 and enters the grid drum 36, the second motor 37 is started to drive the conveying shaft 34 to rotate, the conveying shaft 34 drives the grid drum 36 and the spiral blades 35 to rotate, impurities such as small particles, sand grains and the like in the sewage are intercepted by the grid drum 36 and rotate to the upper part of the slag collecting hopper 33 along with the rotation of the grid drum 36, the impurities can fall into the slag collecting hopper 33 and then are conveyed upwards to the sand discharge port 321 through the spiral blades 35 to be discharged, and the sewage is pretreated. The pretreatment process is carried out in the same pretreatment tank 1, a lifting pump is not needed, the intercepted impurities are automatically output, the occupied area of the treatment device is effectively reduced, and the sewage treatment efficiency is improved.
Referring to fig. 2 and 3, a bottom frame 362 is fixed to a lower end of the wire drum 36, and the bottom frame 362 is a circular sheet. An inclined plate 131 is arranged in the grit chamber 13, the inclined plate 131 is rectangular plate-shaped, the higher end of the inclined plate 131 is flush with the inner bottom surface of the communication port 111, and the lower end of the inclined plate extends into the bottom frame 362. The mesh diameter at the lower end of the wire-grid drum 36 is smaller than the mesh diameter at the upper end. The sewage in the coarse filter tank 12 passes through the communication port 111 and is guided to enter the grid drum 36 through the inclined plate 131, the particles with larger sand grain equal density are easy to deposit at the lower end of the grid drum 36, at the moment, the bottom frame 362 intercepts the sand grains, the possibility that the sand grains leak out of the grid drum 36 is reduced, and the mesh diameter at the lower end of the grid drum 36 is smaller, so that the sand removing efficiency is improved. A plurality of material turning plates 361 are fixedly connected in the grid drum 36, and the material turning plates 361 are obliquely arranged and the oblique direction of the material turning plates 361 is consistent with the rotating direction of the grid drum 36. When the grid rotary drum 36 rotates, the material turning plate 361 blocks small-particle impurities, the possibility that the small-particle impurities slide along the inner wall of the grid rotary drum 36 is reduced, the small-particle impurities slide into the slag collecting hopper 33 along the material turning plate 361 when the material turning plate 361 rotates to the upper side of the slag collecting hopper 33, and the collection efficiency of filter residues is improved.
Referring to fig. 2 and 3, the cleaning assembly 4 is provided on the desanding device 3, and the desanding device 3 includes a high pressure water pump 41, a flushing pipe 42, and a spray head 43. Referring to fig. 4, a chute 132 is formed on an inner side wall of the grit removal basin 13, the chute 132 is vertical in the length direction, and the cross section thereof is dovetail-shaped. A floating plate 411 is arranged in the sand removing pool 13, the floating plate 411 is made of foam plastics, one side of the floating plate extends into the chute 132 and is matched with the chute 132 in a sliding way. The high pressure water pump 41 is fixedly installed on the conveying cylinder 32, a flexible pipe 412 is fixedly connected to a water inlet end of the high pressure water pump, and a water inlet end of the flexible pipe 412 is fixedly connected to the bottom surface of the floating plate 411. The flushing pipe 42 is fixedly installed on the fixed frame 31, the length direction of the flushing pipe is parallel to the axis of the grid drum 36, and one side of the flushing pipe 42 close to the grid drum 36 is provided with a plurality of water spraying holes. The shower head 43 is attached to the flush pipe 42 and communicates with the water spray hole, and the spray direction of the shower head 43 faces the slag trap 33. When the high-pressure water pump 41 is started, the pretreated water in the desanding pool 13 is pumped to the flushing pipe 42 and small-particle impurities adhered to the grid drum 36 are flushed by the spray head 43, so that the collection efficiency of filter residues is further improved. The two sides of the flushing pipe 42 are both fixedly provided with slag removing plates 44, the slag removing plates 44 are rectangular plate-shaped, and the length direction of the slag removing plates is consistent with the length direction of the flushing pipe 42. The slag cleaning plate 44 is provided with a brush 441, and bristles of the brush 441 extend into mesh holes of the grid rotating cylinder 36, so that dust adhered to the grid rotating cylinder 36 is cleaned, and the grid rotating cylinder 36 is kept clean.
Referring to fig. 1, the slag transporting assembly 5 includes a first rotating shaft 51, a second rotating shaft 52, a first conveyor belt 53, a second conveyor belt 54, a coarse slag hopper 55, and a fine slag hopper 56. The first rotating shaft 51 and the second rotating shaft 52 are both cylindrical, the length directions of the first rotating shaft and the second rotating shaft are consistent with the length direction of the pretreatment tank 1, and the first rotating shaft and the second rotating shaft are respectively rotatably arranged on two sides of the pretreatment tank 1. The first conveyor belt 53 and the second conveyor belt 54 are disposed in parallel and wound around the first rotating shaft 51 and the second rotating shaft 52. The first conveyor belt 53 is provided below the first rotating roller 22, and the second conveyor belt 54 is provided below the sand discharge port 321. The domestic garbage sent out by the coarse filtering device 2 falls on the first conveying device, and the small-particle sundries discharged by the sand removing device 3 fall on the second conveying device. The coarse slag hopper 55 and the fine slag hopper 56 are both opened upward, the coarse slag hopper 55 is disposed on the lower side of the first conveyor belt 53, and the fine slag hopper 56 is disposed on the lower side of the second conveyor belt 54.
Referring to fig. 1 and 5, the linkage assembly 6 is provided between the first rotating roller 22 and the first rotating shaft 51, and the linkage assembly 6 includes a double-grooved pulley 61, a rotating shaft 62, a conveying pulley 63, a first belt 64, a worm 65, and a worm wheel 66. The double-groove belt wheel 61 is sleeved and fixedly installed on the first rotating roller 22, and the cross section of the rotating rod 62 is circular and is rotatably arranged on the pretreatment tank 1. The conveying belt wheel 63 is sleeved and fixedly mounted on the rotating rod 62, and the first belt 64 is wound between the double-groove belt wheel 61 and the conveying belt wheel 63. The worm 65 is fixedly connected to the rotating rod 62, the worm wheel 66 is sleeved on and fixedly mounted on the first rotating shaft 51, and the worm wheel 66 is meshed with the worm 65. When the first motor 25 is started, the first motor 25 drives the first rotating roller 22 and the double-groove belt wheel 61 to rotate, the double-groove belt wheel 61 drives the conveying belt wheel 63, the rotating rod 62 and the worm 65 to rotate through the first belt 64, the worm wheel 66 is meshed with the worm 65 to rotate, and then the first rotating shaft 51 is driven to rotate, so that the slag conveying assembly 5 and the coarse filtering device 2 work synchronously; at the moment, the first rotating shaft 51 drives the first conveying belt 53, the second conveying belt 54 and the second rotating shaft 52 to rotate, so that the first conveyed household garbage is conveyed into the coarse slag hopper 55, the second conveyed small-particle impurities are conveyed into the fine slag hopper 56, the impurities in the pretreatment tank 1 are automatically conveyed out, and when the coarse slag hopper 55 or the fine slag hopper 56 is filled with the filter residues, the filter residues are poured out.
Referring to fig. 5, the fixed frame 21 is rotatably provided with the scraping roller 7, and the scraping roller 7 has a cylindrical shape, is disposed between the chain net 24 and the first conveyor belt 53, and is disposed in parallel with the first rotating roller 22. A plurality of scraping rods 71 are fixedly arranged on the surface of the scraping roller 7, the length direction of each scraping rod 71 is perpendicular to the axis of the scraping roller 7, and one end, far away from the scraping roller 7, of each scraping rod 71 is in contact with the chain net 24 and the first conveying belt 53. A scraping belt wheel 68 is sleeved and fixedly connected on the scraping roller 7, and a second belt 67 is wound between the scraping belt wheel 68 and the double-groove belt wheel 61. When the coarse filter device 2 works, the double-groove belt wheel 61 drives the scraping belt wheel 68 and the scraping roller 7 to rotate through the second belt 67, the scraping rod 71 rotates along with the scraping roller 7 and continuously stirs the garbage adhered on the chain net 24 off the first conveying belt 53, so that the chain net 24 is kept clean, and the water flow in the coarse filter tank 12 is ensured to be smooth.
Referring to fig. 2, a sand discharge cover 322 and a return pipe 323 are fixedly mounted on the transfer cylinder 32. The sand discharge cover 322 is disposed around the sand discharge port 321 and opens toward the second conveyor belt 54, so as to guide the small particle impurities discharged from the sand discharge port 321 to fall on the second conveyor belt. The return pipe 323 is arranged on one side of the sand discharge cover 322 close to the grid drum 36, one end of the return pipe is communicated with the inside of the higher end of the conveying cylinder 32, and the other end of the return pipe extends into the grid drum 36, so that the moisture carried in the small-particle sundries is guided into the grid drum 36, the water content of the small-particle sundries is reduced, and the waste of water resources is reduced.
The implementation principle of the municipal sewage treatment system in the embodiment of the application is as follows: when the device is used, sewage enters the rough filtering tank 12, the chain net 24 filters and intercepts domestic garbage in the sewage, the first motor 25 drives the first rotating roller 22 to rotate, the first rotating roller 22 drives the chain net 24 and the second rotating roller 23 to rotate, and then the domestic garbage can be fished out and falls on the first conveying belt 53; then the sewage flows into the desanding pool 13 through the communicating port 111 and enters the grid mesh rotating drum 36, the second motor 37 drives the conveying shaft 34 to rotate, the conveying shaft 34 drives the grid mesh rotating drum 36 and the helical blade 35 to rotate, small particle impurities in the sewage are intercepted by the grid mesh rotating drum 36 and fall into the slag collecting hopper 33 along with the rotation of the grid mesh rotating drum, and then the sewage is conveyed to the sand discharging port 321 through the helical blade 35 to be discharged and falls onto the second conveying belt 54; at this time, the first motor 25 drives the first rotating roller 22 and the double-groove belt wheel 61 to rotate, the double-groove belt wheel 61 drives the conveying belt wheel 63, the rotating rod 62, the worm 65 and the worm wheel 66 to drive the first rotating shaft 51 to rotate through the first belt 64, the first rotating shaft 51 drives the first conveying belt 53, the second conveying belt 54 and the second rotating shaft 52 to rotate, so that the domestic garbage conveyed on the first conveying is conveyed into the coarse slag hopper 55, the small-particle impurities conveyed on the second conveying belt are conveyed into the fine slag hopper 56, and the automatic discharge of the impurities in the pretreatment tank 1 is realized. The pretreatment process is carried out in the same pretreatment tank 1, a lifting pump is not needed, the intercepted impurities are automatically output, the occupied area of the treatment device is effectively reduced, and the sewage treatment efficiency is improved.
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 (10)
1. A municipal sewage treatment system which is characterized in that: including preliminary treatment pond (1), be provided with partition wall (11) in preliminary treatment pond (1), the both sides of partition wall (11) are coarse strainer (12) and desanding pond (13) respectively, intercommunication mouth (111) have been seted up to the bottom of partition wall (11), be equipped with rough filter device (2) that are used for filtering domestic waste in the sewage in coarse strainer (12), desanding pond (13) leanin is provided with desanding device (3), desanding device (3) including fixed set up in fixed frame (31) in desanding pond (13), with fixed frame (31) rotate grid rotary drum (36) of connecting, fixed set up in collection sediment fill (33) in grid rotary drum (36), fixed frame (31) to conveying cylinder (32) that the top extends to one side in desanding pond (13), rotate set up in collection sediment fill (33) and conveying axle (34) in conveying cylinder (32), The conveying shaft (34) is fixedly connected with a spiral blade (35) and a second motor (37) used for driving the conveying shaft (34) to rotate, the lower end of the grid rotating cylinder (36) is communicated with the communicating port (111), the grid rotating cylinder (36) is fixedly connected with the conveying shaft (34), and one end, far away from the fixed frame (31), of the conveying cylinder (32) is provided with a sand discharging port (321).
2. The municipal sewage treatment system of claim 1, wherein: the mesh diameter of the lower end of the grid rotating cylinder (36) is smaller than that of the upper end of the grid rotating cylinder, the lower end of the grid rotating cylinder (36) is fixedly provided with a bottom frame (362), an inclined plate (131) is arranged in the desanding pool (13), the higher end of the inclined plate (131) is communicated with the communication port (111), and the lower end of the inclined plate extends into the bottom frame (362).
3. The municipal sewage treatment system of claim 1, wherein: the slag collecting hopper (33) is flared upwards, a material turning plate (361) is fixed in the grid mesh rotating cylinder (36) in an inclined mode, and the inclined direction of the material turning plate (361) is consistent with the rotating direction of the grid mesh rotating cylinder (36).
4. The municipal sewage treatment system of claim 1, wherein: a cleaning assembly (4) is arranged on the sand removing device (3), the cleaning assembly (4) comprises a high-pressure water pump (41), a flushing pipe (42) and a spray head (43) which are sequentially communicated, the flushing pipe (42) and the grid drum (36) are arranged in parallel, and the spraying direction of the spray head (43) faces to the slag collecting hopper (33); both sides of the flushing pipe (42) are fixedly provided with slag cleaning plates (44), and the slag cleaning plates (44) are provided with brushes (441) for cleaning the grid mesh rotating cylinder (36).
5. The municipal sewage treatment system of claim 4, wherein: keep away from in desanding pond (13) spout (132) have been seted up on the inside wall of intercommunication mouth (111) one side, it is provided with kickboard (411) to slide in spout (132), the end fixedly connected with flexible pipe (412) of intaking of high pressure water pump (41), the end of intaking of flexible pipe (412) is fixed set up in on the bottom surface of kickboard (411).
6. The municipal sewage treatment system of claim 1, wherein: rough filter device (2) including fixed set up in mount (21), rotation in rough filter (12) set up in first commentaries on classics roller (22) in mount (21), rotate set up in second commentaries on classics roller (23) in rough filter (12), around locating first commentaries on classics roller (22) reaches chain net (24) on second commentaries on classics roller (23) and be used for the drive first motor (25) of first commentaries on classics roller (22), below the surface of water is located in second commentaries on classics roller (23), be equipped with fortune sediment subassembly (5) that are used for transporting the filter residue on pretreatment tank (1).
7. The municipal sewage treatment system of claim 6, wherein: the pretreatment tank (1) is provided with a slag conveying assembly (5), the slag conveying assembly (5) comprises a first rotating shaft (51), a second rotating shaft (52), a first conveying belt (53), a second conveying belt (54), a coarse slag hopper (55) and a fine slag hopper (56), the first rotating shaft (51) and the second rotating shaft (52) are respectively arranged on two sides of the pretreatment tank (1) in a rotating manner, the first conveying belt (53) and the second conveying belt (54) are arranged in parallel and are respectively arranged on the first rotating shaft (51) and the second rotating shaft (52) in a winding manner, the first conveying belt (53) is arranged on the lower side of the first rotating roller (22), the second conveying belt (54) is arranged on the lower side of the sand discharge port (321), the coarse slag hopper (55) is arranged on the lower side of the first conveying belt (53), and the fine slag hopper (56) is arranged on the lower side of the second conveying belt (54), and a linkage assembly (6) for driving the first rotating shaft (51) to rotate is arranged between the first rotating roller (22) and the first rotating shaft (51).
8. The municipal sewage treatment system of claim 7, wherein: a sand discharge cover (322) and a return pipe (323) are fixedly arranged on the conveying cylinder (32), the sand discharge cover (322) is arranged around the sand discharge opening (321), and an opening of the sand discharge cover (322) faces the second conveying belt (54); the backflow pipe (323) is arranged on one side, close to the grid rotating cylinder (36), of the sand discharge cover (322), one end of the backflow pipe (323) is communicated with the interior of the higher end of the conveying cylinder (32), and the other end of the backflow pipe extends into the grid rotating cylinder (36).
9. The municipal sewage treatment system of claim 7, wherein: linkage subassembly (6) include first commentaries on classics roller (22) go up the cover establish and fixed connection's double flute band pulley (61), rotate on preliminary treatment pond (1) establish dwang (62) of setting, dwang (62) go up the cover establish and fixed connection's conveying pulley (63), double flute band pulley (61) with around the first belt (64) of establishing between conveying pulley (63), fixed connection's worm (65) and on dwang (62) the cover establish and fixed connection's worm wheel (66) on first pivot (51), worm wheel (66) with worm (65) meshing.
10. The municipal sewage treatment system of claim 9, wherein: rotate on mount (21) and be provided with scraping roller (7), scraping roller (7) are located chain net (24) with between first conveyer belt (53), and with first commentaries on classics roller (22) parallel arrangement, fixedly on the roll surface of scraping roller (7) be provided with a plurality of pole (71) of scraping, scrape pole (71) with chain net (24) reach first conveyer belt (53) all contact, cover is established and fixedly connected with scraping belt wheel (68) on scraping roller (7), double flute belt wheel (61) with around being equipped with second belt (67) between scraping belt wheel (68).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110082838.XA CN112978952A (en) | 2021-01-21 | 2021-01-21 | Municipal administration sewage treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110082838.XA CN112978952A (en) | 2021-01-21 | 2021-01-21 | Municipal administration sewage treatment system |
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| CN112978952A true CN112978952A (en) | 2021-06-18 |
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| CN202110082838.XA Pending CN112978952A (en) | 2021-01-21 | 2021-01-21 | Municipal administration sewage treatment system |
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| CN113559612A (en) * | 2021-07-22 | 2021-10-29 | 中国五冶集团有限公司 | A block pretreatment sewage treatment tank |
| CN115677089A (en) * | 2022-10-09 | 2023-02-03 | 荣诚环保工程有限公司 | Integrated multifunctional urban sewage treatment device |
| CN115818907A (en) * | 2023-02-28 | 2023-03-21 | 青岛百发海水淡化有限公司 | Seawater desalination pretreatment system |
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