CN112755869B - Continuous treatment device and method for urban sewage - Google Patents

Abstract

The invention belongs to the technical field of urban sewage treatment and recycling, and discloses a continuous urban sewage treatment device and a treatment method thereof; the device comprises a pipe gallery, a rainwater collecting pipeline and a drainage pipeline, wherein the rainwater collecting pipeline and the drainage pipeline are arranged in the pipe gallery, a plurality of drainage intervals are arranged in the pipe gallery, a water collecting well and a silt collecting well are arranged in any drainage interval, a dredging device and a scouring device are arranged in the water collecting well, a mud-water separator connected with the dredging device is arranged on the silt collecting well, and a cake pressing device is arranged in the silt collecting well; the treatment process comprises the steps of mud-water mixing and stirring, exhausting, mud-water separation, mud cake forming, drying and the like, the problem that the water storage capacity of the sediment after rainwater precipitation is reduced in the prior art is solved, and the method has the remarkable effects of separating mud from water, forming mud cakes and facilitating subsequent treatment and utilization of water resources.

Description

Continuous treatment device and method for urban sewage

Technical Field

The invention relates to the technical field of town sewage treatment and recycling, in particular to a device and a method for continuously treating urban sewage.

Background

Cities and industrial enterprises generate a large amount of domestic sewage and industrial wastewater every day, and simultaneously, a large amount of rainwater brought by rainfall is also generated, compared with the domestic sewage and the industrial wastewater, the cleanliness of the rainwater is higher, and simple purposes such as irrigation and road surface scouring can be achieved through simple treatment; in fact, rainwater collection and utilization systems have been used abroad for decades, such as rainwater collection and utilization systems in the dome of the london century, rainwater collection in berlin, rainwater utilization in nigeria and denmark, rainwater can be used for flushing toilets and watering courtyards in block and apartment after simple treatment, rainwater can reach the standard of drinking water after advanced treatment, and the treatment cost is much lower than that of domestic sewage and industrial wastewater.

Among the prior art, the combination that adopts water collecting pipeline and underground pipe gallery more collects and utilizes the rainwater, set up a plurality of catchment wells in the pipe gallery usually and collect rainwater and the ponding in the pipe gallery, however, can be mingled with the dust in the air when the rainwater descends, it can be mingled with a certain amount of silt to erode house and ground, this kind of condition is especially serious at the great northern city of sand blown by the wind, the silt that the rainwater smugglied secretly deposits gradually in the catchment well, the silt that the siltation is in the catchment well can the greatly reduced catchment well's water storage ability, can paralyze the drainage system in whole city when serious.

Disclosure of Invention

In order to solve the problems in the prior art and achieve the purpose, the invention provides the municipal sewage continuous treatment device and the municipal sewage continuous treatment method for automatically removing the sludge deposited in the water collecting well, which have the obvious effects of quickly discharging the sludge and drying and forming, and are very convenient for later maintenance.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a municipal sewage continuous treatment device comprises a pipe gallery, a rainwater collecting pipeline and a drainage pipeline, wherein the rainwater collecting pipeline and the drainage pipeline are arranged in the pipe gallery, the rainwater pipeline is connected with a drainage system on the ground, a plurality of drainage intervals are arranged in the pipe gallery, a water collecting well and a silt collecting well are arranged in any drainage interval, a dredging device and a scouring device are arranged in the water collecting well, and the dredging device comprises a stirring device and a sewage pump connected with a mud-water separator; the silt collecting well is provided with a mud-water separator connected with the silt removing device, and the silt collecting well is internally provided with a press cake device.

Further, the stirring device comprises a stirring shaft vertically fixed in the water collecting well, the stirring shaft is of a hollow structure with an opening at the bottom end, the opening end of the stirring shaft is connected with an air pump, a main air hole communicated with an inner hole of the stirring shaft is formed in the stirring shaft, and the main air hole is arranged along the radial direction of the stirring shaft; agitating unit still establishes at epaxial stirring cylinder including the cover, and stirring cylinder is the cylindric structure of upper and lower two segmentation settings, and stirring cylinder is last be equipped with the vice gas pocket of main gas pocket complex, and stirring cylinder hypomere's bottom is equipped with the band pulley, and the band pulley is connected with driving motor, and stirring cylinder hypomere's outer lane is equipped with the flight, and the outside turn-ups of flight sets up upwards, and stirring cylinder upper segment's outer lane equipartition has a plurality of puddlers, and the puddler is the L shape pole at vertical rotatory 180 degrees.

Further, the sewage pump is connected with the mud-water separator through an exhaust device; the exhaust device comprises a vertically arranged capsule-shaped shell, supporting legs are arranged at the bottom end of the shell, a horizontally arranged partition plate is arranged in the shell, the shell is divided into an upper cavity and a lower cavity by the partition plate, a spiral heating pipe is arranged in the lower cavity, the heating pipe is in a spiral cone shape with a narrow upper part and a wide lower part, the heating pipe comprises an outer heating pipe and an inner heating pipe, the outer heating pipe and the inner heating pipe are arranged in a double-layer mode, and the inner heating pipe is arranged along the central axis of the outer heating pipe; the top end of the external heating pipe is provided with a vertically arranged exhaust hole, the interlayer of the external heating pipe and the internal heating pipe are both provided with heating devices, and the heating devices are electric heating devices; a floating ball is also arranged in the lower cavity of the shell and is connected with a bolt through a four-bar mechanism, and the bolt is in sliding connection with the partition plate; the clapboard is internally provided with an air outlet hole matched with the bolt, and the air outlet hole penetrates through the clapboard and is communicated with the outside; the baffle plate is rotationally connected with an impeller, the impeller is vertically arranged, one side of the impeller is provided with an eccentric cam which is coaxial with the impeller, a knocking rod matched with the eccentric cam is also arranged in the baffle plate, and the knocking rod is in sliding connection with the baffle plate; the knocking rod is of a horizontally arranged cylindrical structure, a baffle plate perpendicular to the axis of the knocking rod is arranged in the middle of the knocking rod, and a return spring is sleeved on the knocking rod; a through hole matched with the knocking rod is arranged in the partition plate, one end of the reset spring is tightly attached to the through hole, the other end of the reset spring is tightly attached to a baffle plate on the knocking rod, and the knocking rod is tightly attached to the outer wall of the eccentric cam under the action of the reset spring.

Furthermore, the bottom surface of the silt collecting well and the horizontal plane form an included angle of 15 degrees; the cake pressing device comprises an extrusion frame, the extrusion frame comprises a bottom plate which is vertical to the bottom surface of the silt collecting well, a pair of side plates are arranged on two sides of the bottom plate, and the bottom plate and the side plates form a frame structure with a cross section in a shape of a rectangle; a guide rail with a T-shaped cross section is arranged on the bottom plate on the inner side of the extrusion frame, a gear groove is arranged on the side plate on the inner side of the extrusion frame, a hydraulic cylinder is connected to the bottom plate on the outer side of the extrusion frame, and a piston rod of the hydraulic cylinder is perpendicular to the bottom plate; the cake pressing device also comprises a lifting box arranged in the extrusion frame, and a turnover box is arranged in the lifting box; the lifting box is a square box structure with an opening at one end, a T-shaped guide groove matched with the guide rail is arranged on one side of the lifting box, which is opposite to the opening end, at least one pair of lifting gears matched with the gear grooves are arranged on two sides of the lifting box, and the lifting gears are arranged close to the bottom surface of the lifting box; the inner wall of the lifting box, which is opposite to the opening end, is a cambered surface, the circle center of the cambered surface is coplanar with the end surface of the opening end of the lifting box, the inner walls at two sides of the lifting box are provided with cambered sliding grooves, and a turnover gear is arranged in the lifting box; the turnover box is of an arc structure with one end opening matched with the inner cavity of the lifting box, the opening end of the turnover box is the same as the opening end of the lifting box, the outer arc surface of the turnover box is provided with a gear groove matched with a turnover gear, two sides of the turnover box are provided with arc slide rails matched with the slide grooves, a pair of guide pillars are arranged in the turnover box, the guide pillars are connected with a push plate in a sliding manner, two sides of the push plate are connected with a pair of expansion plates in a sliding manner, springs are arranged between the expansion plates and the push plate, the expansion plates are tightly attached to the inner wall of the turnover box under the action of the springs, the push plate is connected with a push rod in a rotating manner, the free end of the push rod is connected with an eccentric wheel, the eccentric wheel is connected with an extrapolation motor, and the extrapolation motor is fixed in the turnover box; the eccentric wheel, the push rod, the push plate and the guide pillar jointly form a crank-slider mechanism.

Furthermore, the flushing device is a flushing tap arranged on the inner wall of the water collecting well, the flushing tap comprises a spherical shell with an opening at one end, the caliber of the opening end of the spherical shell is smaller than the diameter of the spherical shell, a water inlet is arranged at one end of the spherical shell, which is opposite to the opening, and the water inlet is of a cylindrical structure; the ball shell is of a double-layer structure, through holes are uniformly distributed in the inner layer of the ball shell, a ball head is rotatably connected in the ball shell, an annular sealing ring is arranged between the ball head and the ball shell, and the sealing ring is in close contact with the ball head and the ball shell; a through hole penetrating through the center of the sphere is formed in the ball head, a nozzle is installed at one end of the through hole, and the nozzle is detachably connected with the ball head through threads.

Furthermore, a mud cake drying well is arranged in any water collecting interval, the mud cake drying well is arranged on one side of the silt collecting well, a leakage plate is arranged in the mud cake drying well, and the bottom end of the mud cake drying well is connected with an air outlet of the exhaust device through a pipeline; the periphery of the inner wall of the silt collecting well is also provided with an annular backflow pipe, one end of the backflow pipe is connected with a water outlet of the mud-water separator, the other end of the backflow pipe is connected with a plurality of scouring taps, and the plurality of scouring taps are arranged on the inner wall of the silt collecting well.

Furthermore, a cover plate is arranged on the water collecting well, an inner filter plate is arranged in the water collecting well, the inner filter plate divides the water collecting well into an upper well chamber and a lower well chamber, the dredging device and the scouring device are both arranged in the lower well chamber of the water collecting well, and the rainwater collecting pipe is communicated with the upper well chamber of the water collecting well through a pipeline; the pipe gallery bottom surface sets up to middle slope, and the central point of pipe gallery bottom surface puts and still is equipped with the water catch bowl, is equipped with the filter on the water catch bowl, and the water catch bowl sets up along pipe gallery length direction slope, and the minimum point of water catch bowl and the last well room intercommunication of sump pit.

A method for continuously treating urban sewage comprises the following steps:

s1, starting a stirring device and an air pump; the stirring roller rotates, the spiral piece at the lower section of the stirring roller lifts sludge deposited at the bottom of the water collecting well, and the stirring rod at the upper section of the stirring roller stirs the sludge and water in the water collecting well; simultaneously, the air pump continuously ventilates to the (mixing) shaft through the pipeline, and when the vice gas pocket on the stirring drum was aligned with the main pore pair on the (mixing) shaft, the gas outgoing in the (mixing) shaft accelerated the mixing of muddy water.

S2, starting a sewage pump, conveying the mud-water mixture to an exhaust device through a pipeline by the sewage pump, heating the passing mud-water mixture by a heating pipe in the exhaust device, discharging gas dissolved in mud water in a bubble form through an exhaust hole in the heating pipe, and finally conveying the gas into a mud cake drying well through an air outlet of the exhaust device and the pipeline.

And S3, conveying the heated and exhausted mud-water mixture to a mud-water separator through a pipeline, enabling the mud-water separator to work, discharging separated mud into a mud collecting well, conveying separated water to a flushing device through a backflow pipeline to flush the inner wall of the water collecting well, or directly conveying the separated water to a drainage pipeline for further treatment or utilization.

S4, starting the cake pressing device, moving the cake pressing device left and right in the silt collecting well under the action of the hydraulic cylinder, pressing the mud accumulated in the silt collecting well into the turnover box and forming to form a mud cake; after the cake pressing operation is completed, the lifting gear drives the lifting box to move upwards until the lowest end of the turnover box is flush with the ground, then the turnover gear is started, the turnover gear drives the turnover box to rotate clockwise or anticlockwise for 25-35 degrees, then the outward pushing motor is started, the outward pushing motor rotates, and the push plate is driven to do reciprocating motion along the guide post, so that the mud cake formed in the turnover box is pushed out, and the work is completed.

Further, in step S3, the specific process of exhausting by the exhaust device is as follows: at first, the floating ball in the exhaust device descends under the action of gravity, the floating ball drives the bolt to move to open the air outlet, and the air outlet is communicated with the outside; the floating ball rises under the action of water buoyancy along with the gradual entering of the mud-water mixture into the exhaust device, the bolt moves in the opposite direction to close the air outlet at the moment, the exhausted gas is accumulated in the exhaust device, the liquid level in the exhaust device descends after the gas is accumulated to a certain degree, the floating ball descends at the moment, the exhaust port is opened, and the steps are repeated to finish the exhaust; when in exhaust, the gas pushes the impeller to rotate, the eccentric cam on one side of the impeller pushes the knocking rod outwards, the knocking rod intermittently knocks the inner wall of the shell of the exhaust device, and bubbles staying on the inner wall of the shell are separated from the shell through vibration, so that the aim of complete exhaust is fulfilled.

Further, in step S3, the process of the flushing device flushing the inner wall of the water collecting well includes: firstly, rotating a ball head to adjust the direction of a nozzle of a flushing faucet, conveying water separated by a mud-water separator to the flushing faucet through a return pipe, and cleaning the inner wall of a water collecting well in an all-round manner by the flushing faucet; after the sludge discharging operation is finished, the finally separated water is directly discharged to a drainage pipeline to be treated or utilized next time.

Compared with the prior art, the invention has the beneficial effects that:

(1) the sludge deposited in the water collecting well is stirred into a sludge-water mixture convenient to discharge through the stirring device, then the sludge-water mixture is discharged through the exhaust device, the sludge-water mixture is further provided with a cake pressing device for forming and discharging the discharged sludge, the silt deposited in the water collecting well is shaped, dried and discharged in a full-automatic manner, and the silt subjected to continuous treatment is discharged in a cake form, so that the sludge is convenient for workers to convey outwards; the rainwater after the processing can wash the sump pit inner wall through washing unit, has guaranteed the clean in the sump pit, and the rainwater after the final processing can carry out further processing and utilization through the pipeline, very big manpower of having saved, and the device setting is in the piping lane, and later maintenance is also very convenient.

(2) Set up agitating unit in the well, the flight of stirring roller hypomere can upwards promote the silt of siltation in the sump pit, and the puddler of stirring roller upper segment can stir the silt that promotes, and agitating unit is through the gas of the blowout area pressure of the fit clearance nature of main gas pocket and vice gas pocket, can effectively accelerate silt in the sump pit and the water-mixing in the sump pit, makes things convenient for the dredge pump to discharge the muddy water mixture.

(3) The muddy water mixture after discharging exhausts through exhaust apparatus earlier, and exhaust apparatus will dissolve the gas in the muddy water mixture through the heating and discharge with the form of bubble, then has the gas of certain pressure through the clearance nature's of the cooperation of floater with the bolt discharge, and the exhaust gas can drive the impeller rotation, and strike the exhaust apparatus inner wall in succession through the cooperation drive rapping bar of eccentric cam and rapping bar, can effectually with the bubble vibration come-up of laminating on the device inner wall, can effectually with the gas discharge in your water mixture.

(4) The mud separated by the mud-water separator is accumulated in the mud collecting well, the piled mud can be pressed into the turnover box by the cake pressing device in the mud collecting well, the lifting box and the turnover box are lifted by gear transmission after a mud cake is formed, the gears are two synchronous gears symmetrically arranged, the lifting box is guaranteed to be stably lifted upwards, the turnover box is turned over after the mud cake is lifted above the well face, the crank block mechanism in the turnover box pushes the mud cake to reciprocate, so that the formed mud cake is pushed out of the cake pressing device and falls into the mud cake drying well in a sliding mode, hot air exhausted by the exhaust device is exhausted into the mud cake drying well to dry the mud cake, the forming, discharging and drying of the mud cake are fully automatically completed, and the mud cake discharging efficiency is greatly improved.

(5) The ball head of the flushing faucet can rotate in the ball shell, the ball shell is provided with through holes on the wall of the double-layer inner layer, the ball head can ensure that water flow can be discharged from the ball head within a certain range of rotation in the ball shell, the nozzle of the flushing hollow head can be adjusted in multiple angles, so that the flushing of all-around dead angles of the inner wall of the water collecting well is guaranteed, and the cleaning effect is better.

Drawings

FIG. 1 is a longitudinal sectional view of a pipe lane in example 1;

FIG. 2 is a top view of the interior of a tube lane of example 1;

FIG. 3 is an exploded view of the flush faucet of example 1;

FIG. 4 is a schematic three-dimensional view of the flush faucet of example 1;

FIG. 5 is a half sectional view of the flush faucet of embodiment 1;

FIG. 6 is a half sectional view of a stirring shaft in embodiment 1;

FIG. 7 is a half sectional view of a stirring cylinder in embodiment 1;

FIG. 8 is a front view of a stirring apparatus in embodiment 1;

FIG. 9 is a sectional view of an exhaust apparatus according to embodiment 1;

FIG. 10 is a longitudinal sectional view of a heating pipe in example 1;

FIG. 11 is a view showing an initial state of a cake pressing apparatus in embodiment 1;

FIG. 12 is a sludge cake discharging state diagram of the cake pressing device in the embodiment 1;

FIG. 13 is an exploded view of a cake press apparatus in example 1;

FIG. 14 is a longitudinal sectional view of a cake press device in example 1;

FIG. 15 is a flow chart of the discharge of the cake formation in example 2;

FIG. 16 is a longitudinal sectional view of a cake press in example 3;

FIG. 17 is a longitudinal sectional view of a cake press in example 4;

fig. 18 is a sectional view of an exhaust apparatus according to embodiment 5.

In the figure: the device comprises a drainage pipeline 1, a water collecting pipeline 2, a water collecting well 3, a cover plate 4, a water collecting tank 5, a filter plate 6, a flushing device 7, a spherical shell 701, a sealing ring 702, a ball head 703 and a nozzle 704; the stirring device 8, a stirring shaft 801, a main air hole 802, a stirring drum 803, a spiral sheet 804, an auxiliary air hole 805, a stirring rod 806 and a belt wheel 807; the device comprises a driving motor 9, an air pump 10, a sewage pump 11, an exhaust device 12, a shell 1201, a partition plate 1202, a connecting rod 1203, a support 1204, a bolt 1205, a vertical rod 1206, a floating ball 1207, an outer heating pipe 1208, an air outlet 1209, an impeller 1210, a knock rod 1211, an eccentric cam 1212, an inner filter plate 1213, an air outlet 1214, an air bubble 1215, a supporting rod 1216 and an inner heating pipe 1217; the sludge-water separator 13, the silt collecting well 14, the cake pressing device 15, the extrusion frame 1501, the transmission rod 1502, the guide rail 1503, the lifting box 1504, the lifting gear 1505, the guide groove 1506, the sliding groove 1507, the overturning gear 1508, the overturning box 1509, the guide post 1510, the eccentric wheel 1511, the push-out motor 1512, the sliding rail 1513, the push rod 1514, the push plate 1515 and the expansion plate 1516; a hydraulic cylinder 16 and a mud cake drying well 18.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention is further explained below with reference to the accompanying drawings.

Example 1

Referring to the figures 1-14, the urban sewage continuous treatment device comprises a pipe gallery, a rainwater collecting pipeline 2 and a drainage pipeline 1, wherein the rainwater collecting pipeline 2 and the drainage pipeline 1 are arranged in the pipe gallery; a plurality of drainage intervals are arranged in the pipe gallery, a water collecting well 3 and a sludge collecting well 14 are arranged in any drainage interval, a mud cake drying well 18 is also arranged, and the mud cake drying well 18 is arranged on one side of the sludge collecting well 14; a dredging device and a scouring device 7 are arranged in the water collecting well 3, a cover plate 4 is arranged on the water collecting well 3, an inner filter plate 1213 is arranged in the water collecting well 3, the inner filter plate 1213 divides the water collecting well 3 into an upper well chamber and a lower well chamber, the dredging device and the scouring device 7 are both arranged in the lower well chamber of the water collecting well 3, a rainwater collecting pipe is communicated with the upper well chamber of the water collecting well 3 through a pipeline, and the lowest point of the water collecting tank 5 is communicated with the upper well chamber of the water collecting well 3; a mud-water separator 13 connected with the dredging device is arranged on the silt collecting well 14, and a cake pressing device 15 is arranged in the silt collecting well 14.

The dredging device comprises a stirring device 8 and a sewage pump 11 connected with a mud-water separator 13; the stirring device 8 comprises a stirring shaft 801 vertically fixed in the water collecting well 3, the stirring shaft 801 is of a hollow structure with an opening at the bottom end, the opening end of the stirring shaft 801 is connected with an air pump 10, the stirring shaft 801 is provided with a main air hole 802 communicated with an inner hole of the stirring shaft 801, and the main air hole 802 is arranged along the radial direction of the stirring shaft 801; agitating unit 8 still establishes the stirring drum 803 on (mixing) shaft 801 including the cover, stirring drum 803 is the cylindric structure of two upper and lower segmentation settings, be equipped with on stirring drum 803 with main air hole 802 complex vice gas pocket 805, the bottom of stirring drum 803 hypomere is equipped with band pulley 807, band pulley 807 is connected with driving motor 9, driving motor 9 is not in same well with agitating unit 8, the outer lane of stirring drum 803 hypomere is equipped with flight 804, the outside turn-ups setting of flight 804, the outer lane equipartition of stirring drum 803 upper segment has a plurality of puddlers 806, puddler 806 is the L shape pole of 180 degrees in vertical face rotation.

The washing device 7 is a washing tap arranged on the inner wall of the water collecting well 3, and eight washing taps are arranged on the inner wall of the water collecting well 3; the flushing faucet comprises a spherical shell 701 with an opening at one end, the caliber of the opening end of the spherical shell 701 is smaller than the diameter of the spherical shell 701, a water inlet is arranged at one end, opposite to the opening, of the spherical shell 701, and the water inlet is of a cylindrical structure; the spherical shell 701 is of a double-layer structure, through holes are uniformly distributed in the inner layer of the spherical shell 701, a ball head 703 is rotatably connected in the spherical shell 701, an annular sealing ring 702 is arranged between the ball head 703 and the spherical shell 701, and the sealing ring 702 is tightly contacted with the ball head 703 and the spherical shell 701; a through hole penetrating through the center of the sphere is formed in the ball head 703, a nozzle 704 is installed at one end of the through hole, and the nozzle 704 is detachably connected with the ball head 703 through threads; an annular return pipe is arranged on the periphery of the inner wall of the sludge collecting well 14, one end of the return pipe is connected with a water outlet of the mud-water separator 13, and the other end of the return pipe is connected with a flushing tap.

The sewage pump 11 is connected with the mud-water separator 13 through an exhaust device 12; the exhaust device 12 comprises a vertically arranged capsule-shaped shell 1201, supporting legs are arranged at the bottom end of the shell 1201, a horizontally arranged partition plate 1202 is arranged in the shell 1201, the shell 1201 is divided into an upper cavity and a lower cavity by the partition plate 1202, a spiral heating pipe is arranged in the lower cavity, the heating pipe is in a spiral cone shape with a narrow upper part and a wide lower part, the heating pipe comprises an outer heating pipe 1208 and an inner heating pipe 1217 arranged in the outer heating pipe 1208 in a double-layer manner, and the inner heating pipe 1217 is arranged along the central axis of the outer heating pipe 1208; the top end of the outer heating tube 1208 is provided with a vertically arranged exhaust hole 1214, heating devices are arranged in an interlayer of the outer heating tube 1208 and the inner heating tube 1217, and the heating devices are electric heating devices; a floating ball 1207 is further arranged in the lower cavity of the shell 1201, the floating ball 1207 is connected with a bolt 1205 through a four-bar mechanism, and the bolt 1205 is in sliding connection with the partition plate 1202; the four-bar mechanism comprises a vertical rod 1206 which is vertically arranged, the vertical rod 1206 penetrates through the partition plate 1202, the bottom end of the vertical rod 1206 is fixed on a floating ball 1207, the top end of the vertical rod 1206 is hinged with a connecting rod 1203, the other end of the connecting rod 1203 is hinged with a bolt 1205, the middle position of the connecting rod 1203 is hinged with a support 1204, the support 1204 is rod-shaped, and the other end of the support 1204 is fixed on the partition plate 1202; the bolt 1205 is a horizontally arranged plate-shaped structure, a through hole is formed in the bolt 1205, an air outlet 1209 matched with the bolt 1205 is formed in the partition plate 1202, the air outlet 1209 penetrates through the partition plate 1202 to communicate the lower cavity of the exhaust device with the outside, and an air outlet channel is formed in the partition plate 1202 by the air outlet; an impeller 1210 is rotationally connected in the partition plate 1202, the impeller 1210 is vertically arranged in the partition plate, the impeller 1210 is communicated with an air outlet channel in the partition plate 1202, the impeller 1210 can only rotate in a single direction, an eccentric cam 1212 coaxially arranged with the impeller 1210 is arranged on one side of the impeller 1210, a knocking rod 1211 matched with the eccentric cam 1212 is further arranged in the partition plate 1202, and the knocking rod 1211 is in sliding connection with the partition plate 1202; the rapping bar 1211 is of a horizontally arranged cylindrical structure, a baffle plate which is perpendicular to the axis of the rapping bar 1211 is arranged in the middle of the rapping bar 1211, and a return spring is sleeved on the rapping bar 1211; a through hole matched with the knocking rod 1211 is formed in the partition plate 1202, one end of the return spring is tightly attached to the through hole of the partition plate 1202, the other end of the return spring is tightly attached to the baffle on the knocking rod 1211, and the knocking rod 1211 is tightly attached to the outer wall of the eccentric cam 1212 under the action of the return spring; a bushing plate is arranged in the mud cake drying well 18, and the bottom end of the mud cake drying well 18 is connected with an air outlet 1209 of the exhaust device 12 through a pipeline.

The bottom surface of the silt collecting well 14 and the horizontal plane form an included angle of 15 degrees; the cake pressing device 15 comprises an extrusion frame 1501, the extrusion frame 1501 comprises a bottom plate which is perpendicular to the bottom surface of the silt collecting well 14, a pair of side plates are arranged on two sides of the bottom plate, and the bottom plate and the side plates form a frame structure with a cross section in a shape of a Chinese character 'ji'; a guide rail 1503 with a T-shaped cross section is arranged on the bottom plate on the inner side of the extrusion frame 1501, a gear groove is arranged on the side plate on the inner side of the extrusion frame 1501, a hydraulic cylinder 16 is connected to the bottom plate on the outer side of the extrusion frame 1501 through a transmission rod 1502, and a piston rod of the hydraulic cylinder 16 is perpendicular to the bottom plate; the cake pressing device 15 also comprises a lifting box 1504 arranged in the extrusion frame 1501, and a turnover box 1509 is arranged in the lifting box 1504; the lifting box 1504 is a square box structure with an opening at one end, a T-shaped guide groove 1506 matched with the guide rail 1503 is arranged on one side of the lifting box 1504 opposite to the opening end, at least one pair of lifting gears 1505 matched with the gear grooves are arranged on two sides of the lifting box 1504, and the lifting gears 1505 are arranged close to the bottom surface of the lifting box 1504; the inner wall of the lifting box 1504, which is opposite to the open end, is a cambered surface, the circle center of the cambered surface is coplanar with the end surface of the open end of the lifting box 1504, the inner walls on the two sides of the lifting box 1504 are provided with cambered sliding grooves 1507, a turning gear 1508 is arranged in the lifting box 1504, and the turning gear 1508 is arranged at the position of the lifting box 1504, which is lower than the center line; the turning box 1509 is of an arc structure with one end opening matched with the inner cavity of the lifting box 1504, the opening end of the turning box 1509 is the same as the opening end of the lifting box 1504, the outer arc surface of the turning box 1509 is provided with a gear groove matched with a turning gear 1508, two sides of the turning box 1509 are provided with arc slide rails 1513 matched with slide grooves 1507, a pair of guide posts 1510 are arranged in the turning box 1509, the guide posts 1510 are slidably connected with a push plate 1515, two sides of the push plate 1515 are slidably connected with a pair of telescopic plates 1516, a spring is arranged between the telescopic plates 1516 and the push plate 1515, the telescopic plates 1516 are tightly attached to the inner wall of the turning box 1509 under the action of the spring, the push plate 1515 is rotatably connected with a push rod 1514, the free end of the push rod 1514 is rotatably connected with an eccentric wheel 1511, the eccentric wheel 1511 is connected with an extrapolation motor 1512, and the motor 1512 is fixed in the turning box 1509; eccentric 1511, push rod 1514, push plate 1515 and guide post 1510 together form a slider-crank mechanism.

Example 2

A method for continuously treating urban sewage comprises the following steps:

s1, starting a stirring device 8 and an air pump 10; the stirring roller 803 rotates, the spiral slice 804 at the lower section of the stirring roller 803 lifts the sludge deposited at the bottom of the water collecting well 3, and the stirring rod 806 at the upper section simultaneously stirs the sludge and water in the water collecting well 3; meanwhile, the air pump 10 continuously ventilates the stirring shaft 801 through the pipeline, and when the auxiliary air holes 805 on the stirring roller 803 are aligned with the main air holes 802 on the stirring shaft 801, the air in the stirring shaft 801 is discharged, so that the mixing of muddy water is accelerated.

S2, starting the sewage pump 11, conveying the mud-water mixture to the exhaust device 12 through a pipeline by the sewage pump 11, heating the passing mud-water mixture by a heating pipe in the exhaust device 12, discharging gas dissolved in the mud water in the form of bubbles 1215 through an exhaust hole 1214 on the outer heating pipe, and finally conveying the gas into the mud cake drying well 18 through an air outlet 1209 of the exhaust device 12 and the pipeline.

S3, conveying the heated and exhausted sludge-water mixture to a sludge-water separator 13 through a pipeline, enabling the sludge-water separator 13 to work, discharging separated sludge into a sludge collecting well 14, conveying separated water to a flushing device 7 through a backflow pipeline to flush the inner wall of the water collecting well 3, or directly conveying the water to a drainage pipeline 1 for further treatment or utilization.

The specific process of the exhaust device 12 is as follows: at the beginning, a floating ball 1207 in the exhaust device 12 descends under the action of gravity, the floating ball 1207 drives a bolt 1205 to move to open an air outlet 1209, and the air outlet 1209 is communicated with the outside; along with the gradual entering of the muddy water mixture into the exhaust device 12, the floating ball 1207 rises under the action of water buoyancy, at the moment, the bolt 1205 moves in the reverse direction to close the air outlet 1209, the discharged gas is accumulated in the exhaust device 12, the liquid level in the exhaust device descends after the gas is accumulated to a certain degree, at the moment, the floating ball 1207 descends, the exhaust port is opened, and the steps are repeated to finish the exhaust; when the air is exhausted, the impeller 1210 is pushed to rotate by the air, the eccentric cam 1212 on one side of the impeller 1210 pushes the knocking rod 1211 outwards, the knocking rod 1211 intermittently knocks the inner wall of the shell of the exhaust device 12, and the air bubbles 1215 remained on the inner wall of the shell are separated from the shell through vibration, so that the aim of completely exhausting the air is fulfilled.

The process of the scouring device 7 for scouring the inner wall of the water collecting well 3 is as follows: firstly, the ball head 703 is rotated to adjust the direction of the nozzle of the flushing faucet, water separated by the mud-water separator 13 is conveyed to the flushing faucet through the return pipe, and the flushing faucet cleans the inner wall of the water collecting well 3 in an all-round way; after the sludge discharge operation is completed, the finally separated water is directly discharged to a water discharge pipeline 1 to be treated or utilized in the next step.

S4, starting a cake pressing device 15, referring to fig. 15, moving the cake pressing device 15 left and right in the silt collecting well 14 under the action of a hydraulic cylinder 16, pressing mud accumulated in the silt collecting well 14 into a turnover box 1509 and forming to form a mud cake; after the cake pressing operation is completed, the lifting box 1504 is driven to move upwards through the lifting gear 1505 until the lowest end of the overturning box 1509 is flush with the ground, then the overturning gear 1508 is started, the overturning gear 1508 drives the overturning box 1509 to rotate clockwise by 25-35 degrees, then the pushing motor 1512 is started, the pushing motor 1512 rotates, the pushing plate 1515 is driven to move in a reciprocating manner along the guide post 1510, and therefore the cake formed in the overturning box 1509 is pushed out, and the work is completed.

Example 3

Referring to fig. 16, a municipal sewage continuous treatment apparatus differs from embodiment 1 only in that two turnover gears 1508 are provided, and the two turnover gears 1508 are disposed in the lifting box 1504 in an up-and-down symmetrical manner.

Example 4

Referring to fig. 17, a municipal sewage continuous treatment apparatus is different from embodiment 1 only in that a reverse gear 1508 is provided at an upper position of the centerline of a lifting box 1504.

Example 5

Referring to fig. 18, a municipal sewage continuous treatment device differs from embodiment 1 only in that a floating ball 1207 is connected with a bolt 1205 through a four-bar mechanism, the four-bar mechanism comprises a vertical bar 1206 vertically fixed on a partition plate 1202, the floating ball 1207 is sleeved outside the vertical bar 1206, the floating ball 1207 can slide up and down along the vertical bar 1206, the top end of the floating ball 1207 is slidably connected with a support 1204, and the support 1204 is hinged with the inner wall of an exhaust device 12; a through hole is vertically formed in the partition plate 1202, and the plug 1205 is vertically arranged in the through hole; the bolt 1205 comprises a vertical rod 1206 penetrating through the partition plate 1202 and the shell 1201, and three discs are arranged on the vertical rod 1206 along the length direction of the vertical rod 1206, wherein one disc is arranged above the partition plate 1202, a compression spring is arranged between the disc and the shell 1201, one end of the compression spring is tightly attached to the disc at the topmost end of the vertical rod 1206, and the other end of the compression spring is tightly attached to the inner wall of the shell 1201; the other two discs are arranged in through holes on the partition plate 1202, and rollers matched with the upper surface of the support 1204 are arranged at the bottom ends of the vertical rods 1206.

Example 6

A method for continuously treating municipal sewage, which is different from embodiment 2 only in that, in step S4, a turnover gear 1508 drives a turnover box 1509 to rotate counterclockwise by 25-35 degrees.

Claims (8)

1. A municipal sewage continuous treatment device comprises a pipe gallery, a rainwater collecting pipeline and a drainage pipeline, wherein the rainwater collecting pipeline and the drainage pipeline are arranged in the pipe gallery; a mud-water separator connected with the dredging device is arranged on the silt collecting well, and a cake pressing device is arranged in the silt collecting well;

the stirring device comprises a stirring shaft which is vertically fixed in the water collecting well, the stirring shaft is of a hollow structure with an opening at the bottom end, the opening end of the stirring shaft is connected with an air pump, a main air hole which is communicated with an inner hole of the stirring shaft is arranged on the stirring shaft, and the main air hole is arranged along the radial direction of the stirring shaft; the stirring device also comprises a stirring roller sleeved on the stirring shaft, and the stirring roller is of a cylindrical structure arranged in an upper-lower two-section manner; the stirring roller is provided with an auxiliary air hole matched with the main air hole, the lower section of the stirring roller is provided with a belt wheel, the belt wheel is connected with a driving motor, the outer ring of the lower section of the stirring roller is provided with a spiral sheet, the outermost side of the spiral sheet is turned upwards, a plurality of stirring rods are uniformly distributed on the outer ring of the upper section of the stirring roller, and the stirring rods are L-shaped rods which rotate 180 degrees on the vertical surface;

the sewage pump is connected with the mud-water separator through an exhaust device; the exhaust device comprises a shell, a partition plate is arranged in the shell, and the shell is divided into an upper cavity and a lower cavity by the partition plate; a spiral heating pipe is arranged in the lower cavity, the heating pipe comprises an outer heating pipe and an inner heating pipe, the outer heating pipe is arranged in a double-layer mode, the inner heating pipe is arranged in the outer heating pipe, and the inner heating pipe is arranged along the central axis of the outer heating pipe; the top end of the external heating pipe is provided with an exhaust hole, and the interlayer of the external heating pipe and the inner heating pipe are both provided with heating devices; a floating ball is also arranged in the lower cavity body, the floating ball is connected with a bolt through a four-bar mechanism, and the bolt is in sliding connection with the partition plate; the clapboard is internally provided with an air outlet hole matched with the bolt, and the air outlet hole penetrates through the clapboard and is communicated with the outside; the impeller is rotationally connected in the partition plate, an eccentric cam is arranged on one side of the impeller, a knocking rod matched with the eccentric cam is further arranged in the partition plate, and the knocking rod is connected with the partition plate in a sliding mode; and the knocking rod is provided with a return spring, and the knocking rod is tightly attached to the outer wall of the eccentric cam under the action of the return spring.

2. The municipal sewage continuous treatment device according to claim 1, wherein the bottom surface of the sludge collecting well is arranged at an angle of 15 degrees with the horizontal plane; the cake pressing device comprises an extrusion frame, the extrusion frame comprises a bottom plate which is vertical to the bottom surface of the silt collecting well, a pair of side plates are arranged on two sides of the bottom plate, and the bottom plate and the side plates form a frame structure with a cross section in a shape of a rectangle; a guide rail with a T-shaped cross section is arranged on the bottom plate on the inner side of the extrusion frame, a hydraulic cylinder is connected to the bottom plate on the outer side of the extrusion frame, and a gear groove is formed in the side plate on the inner side of the extrusion frame; the cake pressing device also comprises a lifting box arranged in the extrusion frame, and a turnover box is arranged in the lifting box; the lifting box is of a box body structure with an opening at one end, a guide groove matched with the guide rail is formed in one side, opposite to the opening end, of the lifting box, at least one pair of lifting gears matched with the gear grooves are arranged on two sides of the lifting box, and the lifting gears are arranged close to the bottom surface of the lifting box; the inner wall of the lifting box, which is opposite to the opening end, is a cambered surface, the inner walls of the two sides of the lifting box are provided with cambered sliding grooves, and a turnover gear is arranged in the lifting box; the turnover box is of an arc structure matched with the inner cavity of the lifting box, the outer arc surface of the turnover box is provided with a gear groove matched with the turnover gear, the two sides of the turnover box are provided with arc slide rails matched with the slide grooves, a pair of guide pillars are arranged in the turnover box, the guide pillars are connected with a push plate in a sliding mode, the push plate is connected with a push rod in a rotating mode, the free end of the push rod is connected with an eccentric wheel in a rotating mode, the eccentric wheel is connected with an outward pushing motor, and the outward pushing motor is fixed in the turnover box.

3. The municipal sewage continuous treatment device according to claim 2, wherein the flushing device is a flushing faucet disposed on the inner wall of the water collecting well, the flushing faucet comprises a spherical shell with an open end, the caliber of the open end of the spherical shell is smaller than the diameter of the spherical shell, the end of the spherical shell opposite to the open end is provided with a water inlet, and the water inlet is of a cylindrical structure; the ball shell is of a double-layer structure, through holes are uniformly distributed in the inner layer of the ball shell, a ball head is rotatably connected in the ball shell, an annular sealing ring is arranged between the ball head and the ball shell, and the sealing ring is in close contact with the ball head and the ball shell; a through hole penetrating through the center of the sphere is formed in the ball head, a nozzle is installed at one end of the through hole, and the nozzle is detachably connected with the ball head through threads.

4. The municipal sewage continuous treatment device according to claim 3, wherein a mud cake drying well is further provided in any one of the drainage intervals, the mud cake drying well is provided at one side of the sludge collecting well, a bushing is provided in the mud cake drying well, and the bottom end of the mud cake drying well is connected with the air outlet of the exhaust device through a pipeline; the periphery of the silt collecting well is also provided with an annular backflow pipe, one end of the backflow pipe is connected with a water outlet of the mud-water separator, the other end of the backflow pipe is connected with a plurality of scouring taps, and the plurality of scouring taps are arranged on the inner wall of the silt collecting well.

5. The continuous municipal sewage treatment device according to claim 4, wherein the sump is provided with a cover plate, the sump is provided with an inner filter plate, the inner filter plate divides the sump into an upper chamber and a lower chamber, the dredging device and the scouring device are arranged in the lower chamber of the sump, and the rainwater collecting pipe is communicated with the upper chamber of the sump through a pipeline; the pipe gallery bottom surface sets up to middle slope, and the central point of pipe gallery bottom surface puts and still is equipped with the water catch bowl, is equipped with the filter on the water catch bowl, and the water catch bowl sets up along pipe gallery length direction slope, and the minimum point of water catch bowl and the last well room intercommunication of sump pit.

6. A method for continuously treating urban sewage is characterized by comprising the following steps:

s1, starting a stirring device and an air pump; the stirring roller rotates, the spiral piece at the lower section of the stirring roller lifts sludge deposited at the bottom of the water collecting well, and the stirring rod at the upper section of the stirring roller stirs the sludge and water in the water collecting well; meanwhile, the air pump continuously ventilates the stirring shaft through the pipeline, and when the auxiliary air holes in the stirring roller are aligned with the main air holes in the stirring shaft, the air in the stirring shaft is discharged, so that the mixing of muddy water is accelerated;

s2, starting a sewage pump, conveying the mud-water mixture to an exhaust device through a pipeline by the sewage pump, heating the passing mud-water mixture by a heating pipe in the exhaust device, discharging gas dissolved in the mud water in a bubble form through an exhaust hole in the heating pipe, and finally conveying the gas to a mud cake drying well through an air outlet of the exhaust device;

s3, conveying the heated and exhausted mud-water mixture to a mud-water separator through a pipeline, enabling the mud-water separator to work, discharging separated mud into a mud collecting well, conveying separated water to a flushing device through a backflow pipeline to flush the inner wall of the water collecting well, or directly conveying the separated water to a drainage pipeline for further treatment or utilization;

s4, starting the cake pressing device, moving the cake pressing device left and right in the silt collecting well under the action of the hydraulic cylinder, pressing the mud accumulated in the silt collecting well into the turnover box and forming; after the cake pressing operation is completed, the lifting gear drives the lifting box to move upwards until the lowest end of the turnover box is flush with the ground, then the turnover gear is started, the turnover gear drives the turnover box to rotate clockwise or anticlockwise for 25-35 degrees, then the outward pushing motor is started, the outward pushing motor rotates, and the push plate is driven to do reciprocating motion along the guide post, so that the mud cake formed in the turnover box is pushed out, and the work is completed.

7. The continuous municipal sewage treatment method according to claim 6, wherein in step S3, the specific process of exhausting by the exhaust device is as follows: firstly, a floating ball in the exhaust device descends under the action of gravity, the floating ball drives a bolt to move to open an air outlet, and the air outlet is communicated with the outside; inside along with the muddy water mixture enters into exhaust apparatus gradually, the floater rises under the effect of water buoyancy, and the motion in opposite direction of bolt closes the venthole this moment, and the exhaust gas accumulates in exhaust apparatus, and the inside liquid level can descend after accumulating to a certain degree, and the floater descends this moment, opens the gas vent, and is so repeated, accomplishes the exhaust.

8. The continuous municipal sewage treatment method according to claim 7, wherein in step S3, the process of flushing the inner wall of the water collecting well by the flushing device is as follows: firstly, rotating a ball head to adjust the direction of a nozzle of a flushing faucet, conveying water separated by a mud-water separator to the flushing faucet through a return pipe, and cleaning the inner wall of a water collecting well in an all-round manner by the flushing faucet; after the sludge discharging operation is finished, the finally separated water is directly discharged to a drainage pipeline to be treated or utilized next time.

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