CN112110610A

CN112110610A - Multistage sewage treatment device

Info

Publication number: CN112110610A
Application number: CN202011010907.8A
Authority: CN
Inventors: 黄华英
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2020-12-22

Abstract

The invention discloses multistage sewage treatment equipment which comprises a filtering and adjusting tank, an anaerobic tank, an anoxic tank, an aeration tank, a sedimentation tank and a clean water tank, wherein the filtering and adjusting tank is forgiveness with the anaerobic tank through a first water conveying pipe, the anoxic tank is arranged on one side of the anaerobic tank and is connected with the aeration tank through a second water conveying pipe, the aeration tank is connected with a settling tank through a third water conveying pipe, the sedimentation tank is connected with the clean water tank through an overflow pipe, and a drain pipe is fixedly connected to the lower end of one side of the clean water tank. The invention has the advantages of high treatment efficiency and good sewage treatment effect, and is mainly used for sewage treatment.

Description

Multistage sewage treatment device

Technical Field

The invention relates to the technical field of sewage treatment equipment, in particular to multistage sewage treatment equipment.

Background

The sewage is a water body polluted by people in the process of water consumption in production and life, so that the sewage contains a large amount of pollutants, the pollutants can damage the natural environment, the sewage cannot be directly discharged into the natural environment, equipment or a device for often treating the sewage is called as sewage treatment equipment, the sewage treatment equipment can effectively treat domestic sewage, industrial wastewater and the like in urban areas, the sewage and the pollutants are prevented from directly flowing into water areas, and the sewage treatment equipment has important significance for improving the ecological environment, improving the urban grade and promoting the economic development.

The existing sewage treatment equipment has low sewage treatment efficiency, incomplete sewage treatment and certain influence on the natural environment after being discharged.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the multistage sewage treatment equipment which has high treatment efficiency and good sewage treatment effect.

The technical scheme adopted by the invention for realizing the purpose is as follows: a multi-stage sewage treatment device comprises a filtering and adjusting tank, an anaerobic tank, an anoxic tank, an aeration tank, a sedimentation tank and a clean water tank, wherein the filtering and adjusting tank comprises a spiral slag remover for removing sewage impurities, a slag collecting box for collecting the sewage impurities and a sewage adjusting box for adjusting the pH value of sewage, the spiral slag remover is fixedly connected to the upper end of the sewage adjusting box, the slag collecting box and one side of the sewage adjusting box are fixedly connected with the slag collecting box, the upper end surface of the spiral slag remover is fixedly connected with an adjusting medicine box for storing sewage adjusting liquid, one side of the adjusting medicine box is fixedly connected with a medicine conveying pipe, the other end of the medicine conveying pipe is fixedly connected with a medicine feeding mechanism, one end of the medicine feeding mechanism is fixedly connected with a medicine injection pipe, the other end of the medicine injection pipe is connected with the side wall of the upper end of the sewage adjusting box and is used for injecting sewage adjusting liquid into the sewage adjusting box, the sewage treatment device comprises a sewage adjusting box, and is characterized in that a water conveying pipe is fixedly connected to one side of the lower end of the sewage adjusting box, the other end of the water conveying pipe is fixedly connected to one side of the upper end of an anaerobic tank, the anaerobic tank is used for sewage anaerobic treatment, the anaerobic tank is arranged on one side of the anaerobic tank, the anoxic tank is used for sewage anoxic treatment, the water conveying pipe is fixedly connected to one side of the anoxic tank, the other end of the water conveying pipe is connected to the upper end of one side of an aeration tank, the aeration tank is used for sewage aerobic treatment, the water conveying pipe is fixedly connected to one side of the aeration tank, the other end of the water conveying pipe is fixedly connected to a settling tank. An overflow pipe is fixedly connected to one side of the sedimentation tank, a clean water tank is connected to the other end of the overflow pipe, the clean water tank is used for disinfecting sewage after sewage treatment, a drain pipe is fixedly connected to the lower end of one side of the clean water tank, and a sewage pump for pumping and delivering sewage is fixedly connected to the first water delivery pipe and is used for delivering the sewage in the filtering and adjusting tank to the anaerobic tank; a first liquid pumping cylinder is fixedly installed on the second water conveying pipe, a piston in the first liquid pumping cylinder is connected with a first piston block, one end of the first piston block is fixedly connected with a first piston rod, the other end of the first piston rod penetrates out of the first liquid pumping cylinder and then is connected with a first linkage rod in a hinged mode, a second liquid pumping cylinder is fixedly connected on the second water conveying pipe, a piston in the second liquid pumping cylinder is connected with a second piston block, one end of the second piston block is fixedly connected with a second piston rod, and the other end of the second piston rod penetrates out of the second liquid pumping cylinder and then is connected with a second linkage rod in a hinged mode; a power motor is arranged beside the second water delivery pipe and the third water delivery pipe, the tail end of a driving shaft of the power motor is fixedly connected with a driving wheel, the edge of the side surface of the driving wheel is fixedly connected with a first eccentric pin, and one end of each of the first linkage rod and the second linkage rod is rotatably connected to the first eccentric pin; the second water conveying pipes positioned at two ends of the first liquid pumping cylinder are respectively provided with a first one-way valve, and the third water conveying pipes positioned at two ends of the second liquid pumping cylinder are respectively provided with a second one-way valve; the aeration device is characterized in that one end of the second liquid pumping cylinder is fixedly connected with a vent pipe, the tail end of the vent pipe is fixedly connected with a three-way pipe, an upper end cap is slidably connected with an upper end pipe of the three-way pipe, a first driving rod is fixedly connected with a first floating block, the first floating block is arranged in the anoxic pond, a lower end pipe of the three-way pipe is slidably connected with a lower end cap, a second driving rod is fixedly connected with the lower end cap, the other end of the second driving rod is fixedly connected with a second floating block, and the second floating block is arranged in the aeration pond.

The spiral scarfing cinder ware is including installation casing, hob, helical blade, filter, sewage inlet pipe, the mounting groove has been seted up to the terminal surface under the installation casing, the notch department fixedly connected with of mounting groove is the filter of semicircle arcuation structure, the mounting groove internal rotation of filter upper end is connected with the hob, fixedly connected with is used for clearing up the helical blade of impurity on the hob, helical blade's periphery survey the edge with the cambered surface pastes in the filter and touches, installation casing upper end one side fixedly connected with the sewage inlet pipe that the mounting groove is linked together, sewage inlet pipe is used for the input of pending sewage, hob one end is worn out terminal fixedly connected with drive wheel behind the installation casing.

The drug feeding mechanism is arranged on one side of the driving wheel and comprises a liquid pumping cylinder, a piston block, a piston rod, a cylinder body support and a clamp, the cylinder body support is fixedly connected to the side wall of the installation shell on the same side of the driving wheel, one end of the cylinder body support is fixedly connected with the clamp which is used for fixing the liquid pumping cylinder, the tail end of the liquid pumping cylinder is communicated with a drug delivery pipe and a drug injection pipe respectively, the drug delivery pipe is fixedly provided with a one-way valve on the drug injection pipe respectively, the piston in the inner cavity of the liquid pumping cylinder is connected with the piston block, one end of the piston block is fixedly connected with the piston rod, one end of the piston rod penetrates out of the back of the liquid pumping cylinder and is connected with a connecting rod in a hinged mode, the side edge of the driving wheel is fixedly.

The sewage regulating box is characterized in that a water falling port opposite to the notch of the mounting groove is formed in the upper end of the sewage regulating box, a stirring rod is rotatably connected inside the sewage regulating box, a stirring blade for stirring sewage is fixedly connected to the stirring rod, one end of the stirring rod penetrates out of the tail end of the sewage regulating box and is connected with a motor shaft of a driving motor, a driving wheel is fixedly connected to the stirring rod on one side of the driving motor, the driving wheel is connected with the driving wheel through a chain or a transmission belt, a mounting frame is fixedly connected to the lower end of the driving motor, and one end of the mounting frame is fixedly connected to the outer side wall.

Installation casing one end is provided with the sediment passageway, sediment passageway with it is linked together to receive the sediment case, sediment passageway is hopper-shaped structure, and less opening one end orientation receive the sediment case setting.

The anaerobic tank is characterized in that a partition plate is fixedly connected to one side inside the anaerobic tank, a fine grid is fixedly connected between the left side of the partition plate and the inner side wall of the anaerobic tank, and one end of a water delivery pipe is fixedly connected to the outer side wall of the anaerobic tank on the adjacent side of the upper end of the fine grid.

And the upper ends of the adjacent side surfaces of the anaerobic tank and the anoxic tank are provided with water outlets for enabling sewage in the anaerobic tank to overflow into the anoxic tank.

The equal fixedly connected with dive mixer of bottom in anaerobism pond and the oxygen deficiency pond is used for preventing mud in anaerobism pond and the oxygen deficiency pond is piled up.

The aeration tank is internally provided with a biofilm which is fixedly connected with the bottom surface and used for increasing microorganisms in sewage, a gas pipe is arranged above the biofilm, the other end of the gas pipe penetrates out of the top end of the aeration tank and is connected with an aeration blower on the top end of the aeration tank, so that oxygen is introduced into the sewage and the oxygen content in the sewage is increased.

The clean water basin top is close to water inlet one side fixedly connected with disinfectant and throws the mouth, disinfectant throws the interior upper end fixedly connected with of clean water basin of mouth one side and goes up the baffle, be close to the bottom of the pool fixedly connected with lower baffle of drain pipe one side in the clean water basin, disinfectant throws the mouth and is used for throwing in disinfectant, goes up the baffle in the clean water basin and cooperates with lower baffle, can slow down the velocity of flow of sewage in the disinfect box, can improve disinfection effect.

The invention has the beneficial effects that: this device carries out impurity filtering and sewage regulation to sewage through filtering the equalizing basin, carries out biodegradation to sewage respectively through anaerobism pond, oxygen deficiency pond, aeration tank, eliminates the harmful substance in the sewage, deposits sewage through the sedimentation tank, carries out the final disinfection to sewage through the clean water basin, realizes the multistage processing to sewage.

Drawings

FIG. 1 is a schematic view of the overall connection structure of the present invention;

FIG. 2 is a schematic view of a connection structure of a first pumping cylinder and a second pumping cylinder according to the present invention;

FIG. 3 is a schematic view of the connection structure of the three-way pipe of the present invention;

FIG. 4 is a schematic view of the external structure of the filtration and adjustment tank of the present invention;

FIG. 5 is a schematic cross-sectional view of a filtration and conditioning tank according to the present invention;

fig. 6 is a schematic view of the connection structure of the administration mechanism of the present invention.

In the figure: 1 anaerobic tank, 2 anoxic tank, 3 aeration tank, 4 sedimentation tank, 5 clean water tank, 6 spiral slag remover, 7 slag collecting tank, 8 sewage adjusting tank, 9 adjusting medicine box, 10 medicine conveying pipe, 11 dosing mechanism, 12 water conveying pipe, 13 water conveying pipe, 14 water conveying pipe, 15 overflow pipe, 16 water discharging pipe, 17 installation shell, 18 screw rod, 19 screw blade, 20 filter plate, 21 sewage inlet pipe, 22 installation groove, 23 transmission wheel, 24 stirring rod, 25 stirring blade, 26 driving motor, 27 driving wheel, 28 installation rack, 29 slag discharging channel, 30 partition board, 31 fine grid, 32 water passing port, 33 diving stirrer, 34 biomembrane, 35 aeration pipe, 36 air conveying pipe, 37 aeration, 38 disinfectant input port, 39 upper partition board, 40 lower partition board, 41 sewage pump, 42 medicine injection pipe, 43 first liquid pumping cylinder, 44 first piston block, 45 first piston rod, 46 first linkage rod, 47 second liquid pumping cylinder, 48 second piston block, 49 second piston rod, 50 second linkage rod, 51 power motor, 52 driving wheel, 53 first eccentric pin, 54 first check valve, 55 second check valve, 56 vent pipe, 57 tee pipe, 58 upper plug, 59 first driving rod, 60 first floating block, 61 lower plug, 62 second driving rod, 63 second floating block, 64 piston block, 65 piston rod, 66 cylinder body bracket, 67 clamp, 68 check valve, 69 connecting rod, 70 eccentric pin and 71 liquid pumping cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a multistage sewage treatment device comprises a filtration regulating tank, an anaerobic tank 1, an anoxic tank 2, an aeration tank 3, a sedimentation tank 4 and a clean water tank 5, wherein the filtration regulating tank comprises a spiral slag remover 6 for removing sewage impurities, a slag collecting tank 7 for collecting the sewage impurities and a sewage regulating tank 8 for regulating the pH value of the sewage, the spiral slag remover 6 is fixedly connected to the upper end of the sewage regulating tank 8, the slag collecting tank 7 is fixedly connected to one side of the sewage regulating tank 8 and the slag collecting tank 7, an adjusting medicine tank 9 for storing sewage regulating liquid is fixedly connected to the upper end surface of the spiral slag remover 6, a medicine conveying pipe 10 is fixedly connected to one side of the adjusting medicine tank 9, a medicine feeding mechanism 11 is fixedly connected to the other end of the medicine conveying pipe 10, a medicine injection pipe 42 is fixedly connected to one end of the medicine feeding mechanism 11, and the other end of the medicine injection pipe 42 is connected to the upper side wall of the sewage regulating tank 8, used for pouring into sewage regulating solution to sewage regulating box 8 in, No. one raceway 12 of sewage regulating box 8 lower extreme one side fixedly connected with, No. one raceway 12 other end fixed connection is in 1 upper end one side of anaerobism pond, anaerobism pond 1 is used for sewage anaerobic treatment, 1 one side of anaerobism pond is provided with oxygen deficiency pond 2, oxygen deficiency pond 2 is used for sewage anaerobic treatment, 2 No. two raceway 13 of fixedly connected with in oxygen deficiency pond one side, No. two raceway 13 other ends are connected in 3 one side upper ends of aeration tank, aeration tank 3 is used for sewage aerobic treatment, No. 3 one side fixedly connected with of aeration tank has No. three raceway 14, No. three 14 other end fixedly connected with of raceway sink and decide the pond, sedimentation tank 4 is used for the precipitation of sewage impurity. An overflow pipe 15 is fixedly connected to one side of the sedimentation tank 4, the other end of the overflow pipe 15 is connected with a clean water tank 5, the clean water tank 5 is used for sewage disinfection after sewage treatment, a drain pipe 16 is fixedly connected to the lower end of one side of the clean water tank 5, and a sewage pump 41 for sewage pumping is fixedly connected to the first water delivery pipe 12 and is used for delivering sewage in the filtering regulation tank to the anaerobic tank 1; a first liquid pumping cylinder 43 is fixedly installed on the second water conveying pipe 13, a first piston block 44 is connected to a piston in the first liquid pumping cylinder 43, one end of the first piston block 44 is fixedly connected with a first piston rod 45, the other end of the first piston rod 45 penetrates through the first liquid pumping cylinder 43 and is hinged with a first linkage rod 46, a second liquid pumping cylinder 47 is fixedly connected to the second water conveying pipe 13, a second piston block 48 is connected to a piston in the second liquid pumping cylinder 47, one end of the second piston block 48 is fixedly connected with a second piston rod 49, and the other end of the second piston rod 49 penetrates through the second liquid pumping cylinder 47 and is hinged with a second linkage rod 50; a power motor 51 is arranged beside the second water pipe 13 and the third water pipe 14, the tail end of a driving shaft of the power motor 51 is fixedly connected with a driving wheel 52, the edge of the side surface of the driving wheel 52 is fixedly connected with a first eccentric pin 53, and one end of each of the first linkage rod 46 and the second linkage rod 50 is rotatably connected to the first eccentric pin 53; the second water conveying pipes 13 at the two ends of the first liquid pumping cylinder 43 are respectively provided with a first one-way valve 54, and the third water conveying pipes 14 at the two ends of the second liquid pumping cylinder 47 are respectively provided with a second one-way valve 55; one end of the second liquid pumping cylinder 47 is fixedly connected with a vent pipe 56, the tail end of the vent pipe 56 is fixedly connected with a three-way pipe 57, an upper end pipe of the three-way pipe 57 is internally and slidably connected with an upper plug 58, the upper plug 58 is fixedly connected with a first driving rod 59, the other end of the first driving rod 59 is fixedly connected with a first floating block 60, the first floating block 60 is arranged in the anoxic pond 2, a lower end pipe of the three-way pipe 57 is internally and slidably connected with a lower plug 61, the lower plug 61 is fixedly connected with a second driving rod 62, the other end of the second driving rod 62 is fixedly connected with a second floating block 63, the second floating block 63 is arranged in the aeration pond 3, the upper plug 58 can be matched with an upper end pipe of the three-way pipe 57, the lower plug 61 can be matched with a lower end pipe of the three-way pipe 57, when the liquid level in the anoxic pond 2 rises to a certain height, the first, the first liquid pumping cylinder 43 is driven to work, sewage in the anoxic tank 2 is pumped into the aeration tank 3, as no sewage exists in the aeration tank 3 at the beginning or the water level is low, the lower plug 61 and the three-way pipe 57 are also in a separation state at the moment, the second liquid pumping cylinder 47 is balanced with the atmospheric pressure at the moment and does not generate pumping force, when the liquid level in the aeration tank 3 rises to a certain height, the second floating block 63 is driven to float upwards, so that the lower plug 61 is matched with the three-way pipe 57, the pipeline at the lower end of the three-way pipe 57 is blocked, namely the second liquid pumping cylinder 47 is sealed to generate pumping force to pump the sewage in the aeration tank 3 into the sedimentation tank 4, when the liquid level in the anoxic tank 2 drops, the second liquid pumping cylinder 47 continues to work, and when the water level in the aeration tank 3 also drops to be below a preset height, the lower plug 61 is separated from the three-way pipe 57 at the moment, the upper plug 58 is matched with the three-way pipe 57, so that, until the sewage in the aeration tank 3 is pumped, the structure can ensure that the aeration tank 3 has enough time for aerobic decomposition, and simultaneously ensures that the sewage in the aeration tank 3 can be pumped.

In the invention, the spiral slag remover 6 comprises an installation shell 17, a spiral rod 18, a spiral blade 19, a filter plate 20 and a sewage inlet pipe 21, wherein the lower end surface of the installation shell 17 is provided with an installation groove 22, the notch of the installation groove 22 is fixedly connected with the filter plate 20 in a semicircular arc structure, the spiral rod 18 is rotatably connected in the installation groove 22 at the upper end of the filter plate 20, the spiral blade 19 for cleaning impurities is fixedly connected on the spiral rod 18, the peripheral edge of the spiral blade 19 is contacted with the inner arc surface of the filter plate 20, one side of the upper end of the installation shell 17 is fixedly connected with the sewage inlet pipe 21 communicated with the installation groove 22, the sewage inlet pipe 21 is used for inputting sewage to be treated, and the tail end of the spiral rod 18, which penetrates through the installation.

The medicine feeding mechanism 11 is arranged at one side of the driving wheel 23, and the medicine feeding mechanism 11 comprises a liquid pumping cylinder 71, a piston block 64, a piston rod 65, a cylinder body support 66 and a hoop 67, the cylinder body support 66 is fixedly connected with the side wall of the mounting shell 17 at the same side of the driving wheel 23, one end of the cylinder body support 66 is fixedly connected with the hoop 67, the hoop 67 is used for fixing the liquid pumping cylinder 71, the tail end of the liquid pumping cylinder 71 is respectively communicated with the medicine conveying pipe 10 and the medicine injection pipe 42, the medicine conveying pipe 10 is respectively and fixedly provided with a one-way valve 68 on the medicine injection pipe 42, the piston block 64 is connected with the piston in the inner cavity of the liquid pumping cylinder 71, one end of the piston block 64 is fixedly connected with the piston rod 65, one end of the piston rod 65 penetrates through the liquid pumping cylinder 71 and is hinged with a connecting rod 69, the side edge of the driving wheel 23 is fixedly connected, meanwhile, the piston rod 65 on the liquid pumping cylinder 71 is driven to stretch, and further the liquid pumping cylinder 71 is driven to pump the medicament in the regulating medicament box 9 into the sewage regulating box 8 in a clearance manner.

The mouth of falling into water relative with the 22 notches of mounting groove is seted up to sewage regulating box 8 upper end, 8 internal rotations of sewage regulating box are connected with puddler 24, fixedly connected with is used for the stirring leaf 25 of sewage stirring on the puddler 24, the end behind sewage regulating box 8 is worn out to puddler 24 one end is connected with driving motor 26's motor shaft, fixedly connected with drive wheel 27 on the puddler 24 of driving motor 26 one side, be connected through chain or drive belt transmission between drive wheel 27 and the

drive wheel

23, 26 lower extreme fixedly connected with mounting bracket 28 of driving motor, 28 one end fixed connection of mounting bracket is on 8 lateral walls of sewage regulating box.

One end of the mounting shell 17 is provided with a slag discharge channel 29, the slag discharge channel 29 is communicated with the slag collection box 7, the slag discharge channel 29 is of a funnel-shaped structure, and one end with a smaller opening is arranged towards the slag collection box 7.

Inside one side fixedly connected with baffle 30 of anaerobism pond 1, fixedly connected with thin grid 31 between baffle 30 left side and the anaerobism pond 1 inside wall, No. one raceway 12 one end fixed connection is on the anaerobism pond 1 outside wall of thin grid 31 upper end neighbour side.

The upper ends of the adjacent side surfaces of the anaerobic tank 1 and the anoxic tank 2 are provided with water outlets 32 for overflowing sewage in the anaerobic tank 1 into the anoxic tank 2.

The equal fixedly connected with dive mixer 33 of bottom in anaerobism pond 1 and the oxygen deficiency pond 2 for prevent that the mud in anaerobism pond 1 and the oxygen deficiency pond 2 from piling up.

Aeration tank 3 is inside to be close to bottom surface position fixedly connected with biomembrane 34 for increase microorganism in the sewage, biomembrane 34 top is provided with gas-

supply pipe

36, and 3 tops on aeration tank are worn out to the gas-supply pipe 36 other end, and are connected with the aeration air-blower 37 on 3 tops of aeration tank, are used for letting in oxygen in the sewage, increase the oxygen content in the sewage.

The disinfectant inlet 38 is fixedly connected to one side, close to the water inlet, of the top of the clean water tank 5, the upper end of the interior of the clean water tank 5, close to one side of the water outlet pipe 16, of the disinfectant inlet 38 is fixedly connected with the upper partition plate 39, the bottom of the interior of the clean water tank 5, close to one side of the water outlet pipe 16, is fixedly connected with the lower partition plate 40, the disinfectant inlet 38 is used for putting disinfectant, the upper partition plate 39 and the lower partition plate 40 are matched in the clean water tank 5, the flow rate of sewage.

The working principle of the invention is as follows: when in use, sewage enters through a sewage inlet pipe 21 at the upper end of the spiral slag remover 6, then a large-volume substance is intercepted through a filter plate 20 at the notch of a mounting groove 22, meanwhile, the intercepted impurities are pushed to a slag discharging channel 29 through the rotation of a spiral blade 19, finally, the slag discharging channel 29 is pushed to a slag discharging box, the filtered sewage falls into a sewage adjusting box 8 from the notch of the mounting groove 22, meanwhile, adjusting liquid medicine in an adjusting medicine box 9 is injected into the sewage adjusting box 8 through a medicine feeding mechanism 11, then, a driving motor 26 drives a stirring blade 25 on a stirring rod 24 to mix the sewage through a driving motor 26, so that the adjusting liquid medicine is fully diffused into the sewage, then, the sewage is pumped into an anaerobic tank 1 from the sewage adjusting box 8 through a water conveying pipe 12, harmful substances in the sewage are decomposed through anaerobic microorganisms in the anaerobic tank 1, and then, the sewage enters an anoxic tank 2 through a water passing hole 32 between the anoxic tank 2, further hydrolysising the organic matter in the sewage through microorganisms such as denitrifying bacteria in oxygen deficiency pond 2, afterwards, carry aeration tank 3 with sewage through No. two raceway 13, in aeration tank 3, carry out oxidative decomposition to the organic matter in the sewage through aerobic bacteria, No. three raceway 14 carries the sewage in the aeration tank 3 to sedimentation tank 4, subside impurity such as mud in the sewage, make comparatively limpid processing sewage follow overflow pipe 15 and get into in the disinfection tank, carry out the disinfection effect at last to sewage through the disinfectant that drops into.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a multistage sewage treatment device, includes filtration equalizing basin, anaerobism pond (1), oxygen deficiency pond (2), aeration tank (3), sedimentation tank (4), clean water basin (5), its characterized in that: the filtration and regulation tank comprises a spiral slag remover (6) for removing sewage impurities, a slag collection box (7) for collecting the sewage impurities and a sewage regulation box (8) for regulating the pH value of the sewage, the spiral slag remover (6) is fixedly connected to the upper end of the sewage regulation box (8), the slag collection box (7) is fixedly connected with one side of the sewage regulation box (8) and the slag collection box (7), the upper end face of the spiral slag remover (6) is fixedly connected with a regulation medicine box (9) for storing sewage regulation liquid, one side of the regulation medicine box (9) is fixedly connected with a medicine conveying pipe (10), the other end of the medicine conveying pipe (10) is fixedly connected with a medicine feeding mechanism (11), one end of the medicine feeding mechanism (11) is fixedly connected with a medicine injection pipe (42), and the other end of the medicine injection pipe (42) is connected with the upper end side wall of the sewage regulation box (8), is used for injecting sewage regulating liquid into the sewage regulating box (8), one side of the lower end of the sewage regulating box (8) is fixedly connected with a first water delivery pipe (12), the other end of the first water pipe (12) is fixedly connected with one side of the upper end of the anaerobic tank (1), the anaerobic tank (1) is used for anaerobic treatment of sewage, the anoxic tank (2) is arranged on one side of the anaerobic tank (1), the anoxic tank (2) is used for anoxic treatment of sewage, one side of the anoxic tank (2) is fixedly connected with a second water delivery pipe (13), the other end of the second water pipe (13) is connected with the upper end of one side of the aeration tank (3), the aeration tank (3) is used for aerobic treatment of sewage, one side of the aeration tank (3) is fixedly connected with a third water pipe (14), the other end of the third water conveying pipe (14) is fixedly connected with the settling tank, and the settling tank (4) is used for settling sewage impurities;

an overflow pipe (15) is fixedly connected to one side of the sedimentation tank (4), the other end of the overflow pipe (15) is connected with a clean water tank (5), the clean water tank (5) is used for disinfecting sewage after sewage treatment, a drain pipe (16) is fixedly connected to the lower end of one side of the clean water tank (5), and a sewage pump (41) for pumping and delivering sewage is fixedly connected to the first water delivery pipe (12) and is used for delivering the sewage in the filtering and adjusting tank to the anaerobic tank (1); a first liquid pumping cylinder (43) is fixedly installed on the second water conveying pipe (13), a first piston block (44) is connected to the inner piston of the first liquid pumping cylinder (43), a first piston rod (45) is fixedly connected to one end of the first piston block (44), the other end of the first piston rod (45) penetrates through the first liquid pumping cylinder (43) and is hinged to a first linkage rod (46), a second liquid pumping cylinder (47) is fixedly connected to the second water conveying pipe (13), a second piston block (48) is connected to the inner piston of the second liquid pumping cylinder (47), a second piston rod (49) is fixedly connected to one end of the second piston block (48), and a second linkage rod (50) is hinged to the other end of the second piston rod (49) after penetrating through the second liquid pumping cylinder (47); a power motor (51) is arranged beside the second water pipe (13) and the third water pipe (14), the tail end of a driving shaft of the power motor (51) is fixedly connected with a driving wheel (52), the edge of the side surface of the driving wheel (52) is fixedly connected with a first eccentric pin (53), and one end of each of the first linkage rod (46) and the second linkage rod (50) is rotatably connected to the first eccentric pin (53); the second water conveying pipes (13) positioned at two ends of the first liquid pumping cylinder (43) are respectively provided with a first one-way valve (54), and the third water conveying pipes (14) positioned at two ends of the second liquid pumping cylinder (47) are respectively provided with a second one-way valve (55); liquid cylinder (47) one end fixedly connected with breather pipe (56) is taken out to the second, breather pipe (56) terminal fixedly connected with three-way pipe (57), sliding connection has last end cap (58) in the upper end pipeline of three-way pipe (57), go up end cap (58) first actuating lever (59) of fixedly connected with, first floating block (60) of first actuating lever (59) other end fixedly connected with, first floating block (60) set up in oxygen deficiency pond (2), sliding connection has lower end cap (61) in the lower extreme pipeline of three-way pipe (57), end cap (61) fixedly connected with second actuating lever (62) down, second actuating lever (62) other end fixedly connected with second floating block (63), second floating block (63) set up in aeration tank (3).

2. The multistage sewage treatment apparatus according to claim 1, wherein: the spiral slag remover (6) comprises a mounting shell (17), a spiral rod (18), a spiral blade (19), a filter plate (20) and a sewage inlet pipe (21), the lower end surface of the mounting shell (17) is provided with a mounting groove (22), the notch of the mounting groove (22) is fixedly connected with a filter plate (20) with a semicircular arc structure, a spiral rod (18) is rotationally connected in a mounting groove (22) at the upper end of the filter plate (20), the screw rod (18) is fixedly connected with a screw blade (19) for cleaning impurities, the peripheral edge of the helical blade (19) is contacted with the inner arc surface of the filter plate (20), one side of the upper end of the mounting shell (17) is fixedly connected with a sewage inlet pipe (21) communicated with the mounting groove (22), the sewage inlet pipe (21) is used for inputting sewage to be treated, and one end of the screw rod (18) penetrates out of the tail end of the mounting shell (17) and is fixedly connected with a driving wheel (23).

3. The multistage sewage treatment apparatus according to claim 2, wherein: the drug feeding mechanism (11) is arranged on one side of the driving wheel (23), the drug feeding mechanism (11) comprises a liquid pumping cylinder (71), a piston block (64), a piston rod (65), a cylinder body support (66) and a clamp (67), the cylinder body support (66) is fixedly connected to the side wall of the mounting shell (17) on the same side of the driving wheel (23), one end of the cylinder body support (66) is fixedly connected with the clamp (67), the clamp (67) is used for fixing the liquid pumping cylinder (71), the tail end of the liquid pumping cylinder (71) is respectively communicated with the drug delivery pipe (10) and the drug injection pipe (42), the drug delivery pipe (10) is respectively and fixedly provided with a one-way valve (68), the piston block (64) is connected to the piston in the inner cavity of the liquid pumping cylinder (71), one end of the piston block (64) is fixedly connected with the piston rod (65), one end of the piston rod (65) penetrates out of the liquid pumping cylinder (71) and then is connected with a connecting rod (69) in a hinged mode, an eccentric pin (70) is fixedly connected to the edge of the side face of the driving wheel (23), and the other end of the connecting rod (69) is rotatably connected to the eccentric pin (70).

4. The multistage sewage treatment apparatus according to claim 2, wherein: the mouth of falling into water relative with mounting groove (22) notch is seted up to sewage adjusting box (8) upper end, sewage adjusting box (8) internal rotation is connected with puddler (24), fixedly connected with is used for stirring leaf (25) of sewage stirring on puddler (24), puddler (24) one end is worn out terminal behind sewage adjusting box (8) is connected with the motor shaft of driving motor (26), fixedly connected with drive wheel (27) on puddler (24) of driving motor (26) one side, drive wheel (27) with be connected through chain or drive belt transmission between drive wheel (23), driving motor (26) lower extreme fixedly connected with mounting bracket (28), mounting bracket (28) one end fixed connection be in on sewage adjusting box (8) lateral wall.

5. The multistage sewage treatment apparatus according to claim 2, wherein: install casing (17) one end and be provided with slag discharging channel (29), slag discharging channel (29) with receipts sediment case (7) are linked together, slag discharging channel (29) are hopper-shaped structure, and less opening one end orientation receipts sediment case (7) set up.

6. The multistage sewage treatment apparatus according to claim 1, wherein: the anaerobic tank is characterized in that a partition plate (30) is fixedly connected to one side inside the anaerobic tank (1), a fine grid (31) is fixedly connected between the left side of the partition plate (30) and the inner side wall of the anaerobic tank (1), and one end of a water conveying pipe (12) is fixedly connected to the outer side wall of the anaerobic tank (1) on the adjacent side of the upper end of the fine grid (31).

7. The multistage sewage treatment apparatus according to claim 1, wherein: and the upper ends of the adjacent side surfaces of the anaerobic tank (1) and the anoxic tank (2) are provided with water outlets (32) for overflowing sewage in the anaerobic tank (1) into the anoxic tank (2).

8. The multistage sewage treatment apparatus according to claim 1, wherein: the equal fixedly connected with dive mixer (33) of bottom in anaerobism pond (1) and oxygen deficiency pond (2) is used for preventing sludge in anaerobism pond (1) and oxygen deficiency pond (2) is piled up.

9. The multistage sewage treatment apparatus according to claim 1, wherein: aeration tank (3) inside is close to bottom surface position fixedly connected with biomembrane (34) for increase microorganism in the sewage, biomembrane (34) top is provided with gas-supply pipe (36), gas-supply pipe (36) other end is worn out aeration tank (3) top, and with aeration blower (37) on aeration tank (3) top are connected, are used for letting in oxygen in the sewage, increase the oxygen content in the sewage.

10. The multistage sewage treatment apparatus according to claim 1, wherein: clean water basin (5) top is close to water inlet one side fixedly connected with disinfectant and throws into mouth (38), upper end fixedly connected with goes up baffle (39) in clean water basin (5) of disinfectant throw-in mouth (38) one side, baffle (40) under the bottom of a pool fixedly connected with that is close to drain pipe (16) one side in clean water basin (5), disinfectant throw-in mouth (38) are used for throwing in disinfectant, go up baffle (39) and lower baffle (40) cooperation in clean water basin (5), can slow down the velocity of flow of sewage in the disinfect box, can improve disinfection effect.