CN109928448B

CN109928448B - Sewage treatment equipment

Info

Publication number: CN109928448B
Application number: CN201910255130.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Nanchang Baolai Technology Co ltd
Current assignee: Nanchang Baolai Technology Co ltd
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2021-11-16
Anticipated expiration: 2039-04-01
Also published as: CN109928448A

Abstract

A sewage treatment device comprises a treatment tank, wherein a base is fixed at the bottom of the treatment tank, a first support frame is fixedly connected to one side of the top of the treatment tank, a notch is formed in the other side of the top of the treatment tank, a sewage discharge box is connected to the outer side wall of the treatment tank, a second support frame is installed on one side of the sewage discharge box, a cross rod is fixed between the first support frame and the second support frame, the cross rod is positioned right above the treatment tank, an air blower and a water inlet pipeline are installed on one side of the bottom of the treatment tank, a water outlet pipeline is arranged on the other side of the bottom of the treatment tank, an air guide pipe is arranged in the treatment tank, a first air cavity is formed in the base, the air guide pipes are communicated with the first air cavity, a through hole is formed in the pipe wall of the air guide pipe, a guide pipe is arranged in the base, an air outlet of the air blower is communicated with the first air cavity through the guide pipe, a stepping motor is arranged on the side surface of the cross rod, and a push rod motor is fixedly installed on one side of the stepping motor, a fishing net is fixed at the bottom of the output shaft of the push rod motor.

Description

Sewage treatment equipment

Technical Field

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

Background

Water pollution is water that causes a reduction or loss in the use value of water due to harmful chemicals, and pollutes the environment. Acid, alkali and oxidant in the sewage, compounds such as copper, cadmium, mercury and arsenic, and organic poisons such as benzene, dichloroethane and ethylene glycol can kill aquatic organisms to influence drinking water sources and scenic spots, oxygen in the sewage is consumed when the organic matters in the sewage are decomposed by microorganisms to influence the lives of the aquatic organisms, and after dissolved oxygen in the sewage is exhausted, the organic matters are subjected to anaerobic decomposition to generate unpleasant gases such as hydrogen sulfide and mercaptan, so that the water quality is further deteriorated, and therefore, the polluted water source needs to be treated.

The deoiling effect of present contaminated water treatment facilities is relatively poor, often still exists the sump oil in the water source after being handled, can not satisfy the demand among the actual processing procedure, secondly, the air duct soaks for a long time and can lead to a large amount of impurity of its surface adhesion in sewage, influences processing apparatus's life, in addition, the difficult clearance of a large amount of foams that produces after the processing, causes secondary pollution easily, the deoiling effect receives the influence, consequently, we design a sewage treatment facility.

Disclosure of Invention

The sewage treatment equipment provided by the invention solves the problems that the existing water pollution treatment device is poor in oil removal effect, inconvenient in cleaning of the air duct and easy to cause secondary pollution.

In order to achieve the purpose, the invention adopts the following technical scheme:

a sewage treatment device comprises a treatment tank, wherein a base is fixed at the bottom of the treatment tank, a first support frame is fixedly connected to one side of the top of the treatment tank, a notch is formed in the other side of the top of the treatment tank, a slope is fixedly connected to the other side of the top of the treatment tank, the bottom of the notch is connected with the slope bottom of the slope, a blow-off box is connected to the outer side wall of the treatment tank, the top of the blow-off box is connected with the slope top of the slope, a second support frame is installed on one side of the blow-off box, a cross rod is fixed between the first support frame and the second support frame and is positioned right above the treatment tank, an air blower and an air inlet are installed on one side of the bottom of the treatment tank, a water outlet pipeline is arranged on the other side of the bottom of the treatment tank, the water inlet pipeline and the water outlet pipeline are both communicated with the treatment tank, an electromagnetic valve is installed on the pipeline section of the water outlet pipeline, an air guide pipe is arranged inside of the treatment tank, a first air cavity is formed inside the base, the air duct all is linked together with first air cavity, is equipped with the through-hole on the pipe wall of air duct, and the inside of base is provided with the pipe, and the gas vent of air-blower is linked together through pipe and first air cavity, and the side of horizontal pole is provided with step motor, and one side fixed mounting of step motor has the push rod motor, and the output shaft bottom of push rod motor is fixed with the scoop net.

Preferably, the gas-guide tubes are equidistantly distributed.

Preferably, rubber sealing edges are fixed on both sides and the bottom of the fishing net.

The invention can also be said to be sewage treatment equipment, wherein a first through groove and a second through groove are formed in the cross rod, the first through groove is communicated with the second through groove, a rack is fixed on the inner bottom surface of the first through groove, a gear is arranged in the first through groove, the rack is meshed with the gear, a transmission shaft penetrates through the second through groove, one end of the transmission shaft is fixed with the gear, and the other end of the transmission shaft is fixedly connected with an output shaft of a stepping motor.

Preferably, the third through groove has been seted up to the inside of horizontal pole, and the quantity that the third led to the groove is two, and two third through groove symmetric distribution have a slider in the upper and lower both sides that the second led to the groove, and the inside slidable mounting that the groove was led to the third, and one side of slider is fixed with the connecting rod, and the connecting rod is fixed mutually with step motor.

The invention can also be said to be a sewage oil-removing purification device, the inside of the base is provided with a check valve, the check valve is arranged on the pipe section of the air duct, the top of the base is provided with a receiving groove, the inside of the receiving groove is provided with a first sleeve ring, the inner surface of the first sleeve ring is fixed with a first rubber ring, the inner surface of the first rubber ring is tightly contacted with the outer surface of the air duct, the outer side of the air duct is provided with three first metal rods, the top of the air duct is fixed with an internal thread sleeve, the internal thread sleeve is in threaded connection with a thread cover, the outer side of the thread cover is movably sleeved with a second sleeve ring, the first sleeve ring is fixedly connected with the second sleeve ring through the first metal rods, the inside of the air duct is provided with a second metal rod, the inner bottom of the air duct is provided with a third sleeve ring, the outer surface of the third sleeve ring is fixed with a second rubber ring, the outer surface of the second rubber ring is tightly contacted with the inner surface of the air duct, the top of the third lantern ring is fixed with a connecting frame, the bottom of the second metal rod is fixed with the connecting frame, and the top of the second metal rod is movably connected with the threaded cover through a bearing.

Preferably, the guide pipe is communicated with the bottom end of the second air cavity, and the top end of the second air cavity is communicated with the air outlet nozzle.

The invention can also be said to be an energy-saving and environment-friendly sewage treatment device, wherein the first air cavity is internally provided with an interlayer which divides the first air cavity into two independent spaces, the conduit end connected with the first air cavity is divided into two branch pipes, and the two branch pipes are respectively communicated with the two independent spaces divided by the interlayer.

Preferably, two independent spaces of the first air cavity separated by the partition are respectively communicated with half of the number of the air guide pipes.

Preferably, the interlayer comprises a middle partition section, an axial partition section and a connecting partition section, the connecting partition section is connected with one end of the conduit and one end of the axial partition section, and the middle partition section is connected with the middle of the upper wall in the first air cavity and the middle of the axial partition section.

Preferably, the interlayer comprises a middle partition section, an axial partition section and a connecting partition section, the connecting partition section is connected with one end of the conduit and one end of the axial partition section, and the middle partition section is connected with the middle of the upper wall in the first air cavity and the other end of the axial partition section.

The invention can also be said to be oil removing equipment for purifying sewage, wherein the air duct comprises an air duct fixing section and an air duct rotating section, the first air cavity is communicated with the air duct fixing section, the air duct fixing section is rotationally connected with the air duct rotating section through a first bearing, and the bottom of the air duct rotating section is connected with a twisted blade.

Preferably, the number of twisted blades is 5-12.

Preferably, the top of the second support frame is connected with a fixed rod, the fixed rod is fixedly connected with a water pipe, one end of the water pipe is communicated with a water spraying device, the other end of the water pipe is communicated with a water pump, the water pump is positioned in the treatment tank, and the water spraying device is positioned between the transverse rod and the sewage draining box.

Preferably, the second support frame is rotatably connected with the connecting shafts through second bearings, the number of the connecting shafts is 5-9, belts are sleeved on the outer sides of all the connecting shafts, one end of each connecting shaft is connected with a brush, a rotating motor is installed on the outer side of the second support frame, the output end of the rotating motor is connected with the other end of one connecting shaft, and the brushes are located between the water spraying device and the sewage draining box.

Preferably, the brush is a circular brush.

Preferably, the sewage draining box is connected with a supporting rod, the top end of the supporting rod is connected with a water spraying device, the water spraying device is communicated with one end of a water pipe, the other end of the water pipe is communicated with a water pump, the water pump is positioned in the treating tank, and the water spraying device is positioned between the cross rod and the sewage draining box.

Preferably, the support rod is rotatably connected with the sewage draining box.

Preferably, the connecting shaft is connected to the inner side of the second support frame, a rotating motor is mounted on the connecting shaft, the output end of the rotating motor is connected with a brush, and the brush is located between the cross rod and the sewage draining box.

Preferably, the brush is a cylindrical brush, and the output end of the rotating motor is connected with the inner cylindrical wall of the cylindrical brush.

Preferably, the input ends of the blower, the electromagnetic valve, the stepping motor and the push rod motor are electrically connected with the output end of the external power supply.

Preferably, the type of the blower is YX-21D-1, the type of the electromagnetic valve is 2W-250-25, the type of the stepping motor is SPS57HS3, the type of the push rod motor is XC758, and the type of the one-way valve is BEH 61H-32.

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

1. according to the invention, the air blower, the air guide pipe, the first air cavity, the guide pipe, the one-way valve and the through holes are arranged, so that air can rapidly and uniformly enter sewage, oil stains and suspended matters in the sewage float on the water surface in a bubble mode by utilizing the principle of an air floatation method, the oil removal efficiency is remarkably increased by the plurality of through holes and the air guide pipe, the oil removal effect is enhanced, and the requirements in the actual use process are met.

2. According to the air guide tube descaling device, the accommodating groove, the first rubber ring, the first sleeve ring, the first metal rod, the internal thread sleeve, the thread cover, the second sleeve ring, the second metal rod, the third sleeve ring, the second rubber ring and the connecting frame are arranged, so that people can conveniently descale the inner surface and the outer surface of the air guide tube, the air permeability of the air guide tube is kept, and the service life of the whole device is prolonged.

3. According to the invention, by arranging the slope, the notch, the cross rod, the stepping motor, the push rod motor, the fishing net, the first through groove, the second through groove, the third through groove, the rack, the gear, the transmission shaft, the sliding block, the connecting rod and the rubber edge sealing, foam generated in the sewage treatment process can be completely and thoroughly fished out of the water surface, secondary pollution is avoided, and the practical use effect is good.

4. According to the invention, the second air cavity and the air outlet nozzle are arranged, so that foam generated in the sewage treatment process can be discharged quickly, the frequency and the strength of cleaning the fishing net can be reduced, the energy is saved, the environment is protected, and the sewage treatment efficiency is improved.

5. According to the invention, the interlayer is arranged, so that the sewage in the treatment tank is treated more uniformly.

6. According to the invention, the twisting blade and the first bearing are arranged, so that the decontamination effect and the decontamination efficiency are further improved.

7. According to the invention, through arranging the belt, the rotating motor, the connecting shaft, the brush, the second bearing, the water pump, the water pipe, the water spraying device, the fixing rod and the supporting rod, people can conveniently clean dirt on the front surface and the back surface of the fishing net, the cleanliness of the fishing net is kept, and secondary pollution is avoided.

In conclusion, the invention enhances the oil removing effect and the oil removing efficiency, is convenient for cleaning impurities attached to the inner surface and the outer surface of the air duct, is energy-saving and environment-friendly, has better oil removing and dirt removing effects and higher efficiency, can also clean dirt on the fishing net periodically, avoids secondary pollution and has strong practicability.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a fishing net according to a first embodiment of the present invention;

FIG. 3 is a schematic partial structure diagram according to a second embodiment of the present invention;

FIG. 4 is a partial schematic structural view of a third embodiment of the present invention and an enlarged view of A in FIG. 1;

FIG. 5 is a schematic view of the top of the airway tube in the third embodiment of the present invention;

FIG. 6 is a schematic view of the bottom of the airway tube in the third embodiment of the present invention;

FIG. 7 is a schematic overall structure diagram of a fourth embodiment of the present invention;

FIG. 8 is a schematic partial structure diagram according to a fourth embodiment of the present invention;

FIG. 9 is a schematic partial structure diagram according to a fifth embodiment of the present invention;

FIG. 10 is a schematic partial structure diagram according to a sixth embodiment of the present invention;

FIG. 11 is a schematic partial cross-sectional view of a seventh embodiment of the present invention;

FIG. 12 is a schematic partial structure diagram of a seventh embodiment of the present invention;

FIG. 13 is a schematic structural diagram of an eighth embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a ninth embodiment of the present invention;

in the figure: 1 treatment pool, 2 bases, 3 first supporting frames, 4 inclined slopes, 5 second supporting frames, 6 notches, 7 cross bars, 8 blowers, 9 water inlet pipelines, 10 water outlet pipelines, 11 electromagnetic valves, 12 air guide pipes, 12.1 air guide pipe fixing sections, 12.2 air guide pipe rotating sections, 13 first air chambers, 14 guide pipes, 15 stepping motors, 16 push rod motors, 17 fishing nets, 18 first through grooves, 19 second through grooves, 20 third through grooves, 21 racks, 22 gears, 23 transmission shafts, 24 sliding blocks, 25 connecting rods, 26 one-way valves, 27 accommodating grooves, 28 first rubber rings, 29 first lantern rings, 30 through holes, 31 first metal rods, 32 internal thread sleeves, 33 thread covers, 34 second lantern rings, 35 second metal rods, 36 third lantern rings, 37 second rubber rings, 38 connecting frames, 39 rubber, 40 sewage discharge boxes, 41 second air chambers, 42 air outlet nozzles, 43, 43.1 middle partition sections, 43.2 axial partition sections, 43.3 connecting partition, 44 twisted blades, 45 first bearing, 46 belt, 47 rotating motor, 48 connecting shaft, 49 brush, 50 second bearing, 51 water pump, 52 water pipe, 53 water spray device, 54 fixing rod and 55 supporting rod.

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.

Embodiment I referring to FIGS. 1-2, a sewage treatment device comprises a treatment tank 1, wherein a base 2 is fixed at the bottom of the treatment tank 1, a first support frame 3 is fixedly connected to one side of the top of the treatment tank 1, a notch 6 is formed in the other side of the top of the treatment tank 1 and is fixedly connected with a slope 4, the bottom of the notch 6 is connected with the bottom of the slope 4, a sewage discharge box 40 is connected to the outer side wall of the treatment tank 1, the top of the sewage discharge box 40 is connected with the top of the slope 4, a second support frame 5 is installed at one side of the sewage discharge box 40, a cross rod 7 is fixed between the first support frame 3 and the second support frame 5, the cross rod 7 is positioned right above the treatment tank 1, an air blower 8 and a water inlet pipeline 9 are installed at one side of the bottom of the treatment tank 1, a water outlet pipeline 10 is arranged at the other side of the bottom of the treatment tank 1, the water inlet pipeline 9 and the water outlet pipeline 10 are both communicated with the treatment tank 1, the electromagnetic valve 11 is installed on a pipe section of the water outlet pipeline 10, the air guide pipe 12 is arranged inside the treatment pool 1, the first air cavity 13 is formed inside the base 2, the air guide pipes 12 are communicated with the first air cavity 13, the pipe wall of the air guide pipe 12 is provided with a through hole 30, the guide pipe 14 is arranged inside the base 2, an air outlet of the air blower 8 is communicated with the first air cavity 13 through the guide pipe 14, the side surface of the cross rod 7 is provided with the stepping motor 15, one side of the stepping motor 15 is fixedly provided with the push rod motor 16, and the bottom of an output shaft of the push rod motor 16 is fixedly provided with the fishing net 17; the gas-guide tubes 12 are distributed at equal intervals; rubber sealing edges 39 are fixed on both sides and the bottom of the fishing net 17.

Referring to fig. 3, in the second embodiment, a first through groove 18 and a second through groove 19 are formed in a cross bar 7, the first through groove 18 is communicated with the second through groove 19, a rack 21 is fixed on the inner bottom surface of the first through groove 18, a gear 22 is arranged in the first through groove 18, the rack 21 is engaged with the gear 22, a transmission shaft 23 penetrates through the second through groove 19, one end of the transmission shaft 23 is fixed with the gear 22, and the other end of the transmission shaft 23 is fixedly connected with an output shaft of a stepping motor 15; third through grooves 20 are formed in the cross rod 7, the number of the third through grooves 20 is two, the two third through grooves 20 are symmetrically distributed on the upper side and the lower side of the second through groove 19, a sliding block 24 is slidably mounted inside the third through grooves 20, a connecting rod 25 is fixed on one side of the sliding block 24, and the connecting rod 25 is fixed with the stepping motor 15.

Embodiment three referring to fig. 4-6, a one-way valve 26 is disposed inside a base 2, the one-way valve 26 is mounted on a pipe section of an airway tube 12, a receiving groove 27 is disposed at the top of the base 2, a first collar 29 is disposed inside the receiving groove 27, a first rubber ring 28 is fixed on an inner surface of the first collar 29, the inner surface of the first rubber ring 28 is in close contact with an outer surface of the airway tube 12, three first metal rods 31 are disposed outside the airway tube 12, an internal thread bush 32 is fixed at the top of the airway tube 12, a thread cover 33 is in threaded connection with the internal thread bush 32, a second collar 34 is movably sleeved on an outer side of the thread cover 33, the first collar 29 is fixedly connected with the second collar 34 through the first metal rods 31, a second metal rod 35 is disposed inside the airway tube 12, a third collar 36 is disposed at an inner bottom of the airway tube 12, and a second rubber ring 37 is fixed on an outer surface of the third collar 36, the outer surface of the second rubber ring 37 is tightly contacted with the inner surface of the air duct 12, the top of the third collar 36 is fixed with a connecting frame 38, the bottom of the second metal rod 35 is fixed with the connecting frame 38, and the top of the second metal rod 35 is movably connected with the threaded cover 33 through a bearing; the input ends of the blower 8, the electromagnetic valve 11, the stepping motor 15 and the push rod motor 16 are electrically connected with the output end of the external power supply; the model of the blower 8 is YX-21D-1, the model of the electromagnetic valve 11 is 2W-250-25, the model of the stepping motor 15 is SPS57HS3, the model of the push rod motor 16 is XC758, and the model of the one-way valve 26 is BEH 61H-32.

Embodiment four referring to fig. 7 to 8, the guide pipe 14 communicates with the bottom end of the second air chamber 41, and the top end of the second air chamber 41 communicates with the air outlet nozzle 42.

Embodiment five referring to fig. 9, a partition layer 43 is disposed in the first air chamber 13, the partition layer 43 partitions the first air chamber 13 into two independent spaces, the end of the conduit 14 connected with the first air chamber 13 is divided into two branch conduits, and the two branch conduits are respectively communicated with the two independent spaces partitioned by the partition layer 43; two independent spaces of the first air cavity 13 separated by the partition 43 are respectively communicated with half of the number of the air guide tubes 12; the partition 43 comprises a middle partition 43.1, an axial partition 43.2 and a connecting partition 43.3, the connecting partition 43.3 connects the conduit 14 and one end of the axial partition 43.2, and the middle partition 43.1 connects the middle of the upper wall in the first air cavity 13 and the middle of the axial partition.

Sixth embodiment referring to fig. 10, barrier 43 includes a medial partition 43.1, an axial partition 43.2, and a connecting partition 43.3, with connecting partition 43.3 connecting conduit 14 and one end of axial partition 43.2, and medial partition 43.1 connecting the middle of the upper wall in first lumen 13 and the other end of axial partition 43.2.

Embodiment seven referring to fig. 11-12, the airway tube 12 includes an airway tube fixed section 12.1 and an airway tube rotating section 12.2, the first air cavity 13 communicates with the airway tube fixed section 12.1, the airway tube fixed section 12.1 is rotatably connected with the airway tube rotating section 12.2 through a first bearing 45, and the bottom of the airway tube rotating section 12.1 is connected with a twisted blade 44; the twisted blades 44 are 5-12 in number.

Referring to fig. 13, the top of the supporting frame 5 is connected with a fixing rod 54, the fixing rod 54 is fixedly connected with a water pipe 52, one end of the water pipe 52 is communicated with a water spraying device 53, the other end of the water pipe 52 is communicated with a water pump 51, the water pump 51 is positioned in the treatment tank 1, and the water spraying device 53 is positioned between the cross bar 7 and the sewage draining box 40; the support frame 5 is rotatably connected with the connecting shafts 48 through second bearings 50, the number of the connecting shafts 48 is 5-9, the outer sides of all the connecting shafts 48 are sleeved with the belts 46, one end of each connecting shaft 48 is connected with a brush 49, the outer side of the support frame 5 is provided with a rotating motor 47, the output end of each rotating motor 47 is connected with the other end of one connecting shaft 48, and the brush 49 is positioned between the water spraying device 53 and the sewage draining box 40; the brush 49 is a circular brush.

Embodiment nine referring to fig. 14, a support rod 55 is connected to the sewage tank 40, a water spray device 53 is connected to the top end of the support rod 55, the water spray device 53 is communicated with one end of a water pipe 52, the other end of the water pipe 52 is communicated with a water pump 51, the water pump 51 is positioned in the treatment tank 1, and the water spray device 53 is positioned between the cross bar 7 and the sewage tank 40; the support rod 55 is rotatably connected with the sewage draining box 40; the inner side of the support frame 5 is connected with a connecting shaft 48, a rotating motor 47 is arranged on the connecting shaft 48, the output end of the rotating motor 47 is connected with a brush 49, and the brush 49 is positioned between the cross bar 7 and the sewage draining box 40; the brush 49 is a cylindrical brush, and the output end of the rotating motor 47 is connected to the inner cylindrical wall of the cylindrical brush.

The working principle is as follows:

A. firstly, utilize the pipeline 9 of intaking to go into the inside of handling pond 1 with the contaminated water pump for the sewage in the handling pond 1 submerges the top of air duct 12, until the surface of water and the minimum looks parallel and level on inclined plane 4 inclined plane, then start air-blower 8, with the inside of outside air through pipe 14 pouring into first air cavity 13, check valve 26 can prevent that sewage from pouring into first air cavity 13 in, along with the increase of the internal gas pressure in first air cavity 13, its inside gas enters into the inside of air duct 12 through check valve 26, the sewage in the evacuation air duct 12 is and is discharged into sewage through-hole 30 in with gas, at this moment, greasy dirt and suspended solid in the sewage float gradually under the effect of air molecule, finally float in the form of bubble in the surface of water.

B. The push rod motor 16 is started, the scoop net 17 is pushed into sewage, the rubber sealing edge 39 can enable the edge of the scoop net 17 to be in close contact with the inner wall surface of the treatment pool 1, then the step motor 15 is started, the gear 22 rotates, under the action of the rack 21, the step motor 15 drives the push rod motor 16 to slowly move rightwards, the slider 24 can improve the stability of the step motor 15 in the moving process, when the scoop net 17 is in contact with the right side wall of the treatment pool 1, the push rod motor 16 is controlled to slowly retract, the scoop net 17 enters the inside of the notch 6, meanwhile, the rubber sealing edge 39 at the bottom of the scoop net 17 is also in contact with the inclined surface of the inclined surface slope 4, the foam is prevented from leaking back into the sewage until the foam is moved into the sewage discharge box 40, then the electromagnetic valve 11 is controlled to be opened, and the treated sewage is discharged by the water outlet pipeline 10.

C. After the device is used for a period of time, impurities in sewage can be adhered to the inner surface and the outer surface of the air guide tube 12, the air guide tube 12 needs to be cleaned at the moment, the specific operation is as follows, firstly, the threaded cover 33 is screwed to separate the threaded cover 33 from the internal thread sleeve 32, then the threaded cover 33 is directly pulled upwards, the first lantern ring 29 and the third lantern ring 36 are enabled to move upwards by utilizing the first metal rod 31 and the second metal rod 35, and in the process, the impurities along the way can be erased by the first rubber ring 28 and the second rubber ring 37.

D. When the blower 8 is started, a part of the external air enters the second air chamber 41 through the conduit 14 and is blown out from the air outlet nozzle 42, and the oil stains and suspended matters floating on the water surface in the treatment tank 1 can be pushed into the sewage discharge tank 40 by the air blown out from the air outlet nozzle 42. Therefore, the speed of pollution discharge can be increased, and the operation efficiency is improved. And most greasy dirt and suspended solid are all blown into in blow off box 40, and scoop net 17 only needs some greasy dirt and suspended solid that have not been blown into in blow off box 40, and blown greasy dirt and suspended solid on 1 pond inner wall of treatment pool still, like this the greasy dirt and the suspended solid of scoop net 17 clearance at every turn still less, corresponding frequency and the intensity that can reduce clean scoop net 17, energy-concerving and environment-protective more like this, improve the efficiency of handling sewage.

E. The blower 8 is activated and outside air is respectively injected into two separate spaces of the first air chamber 13 partitioned by the partition 43 through the guide duct 14. Therefore, the gas guide pipe 12 far away from the opening of the first gas cavity 13 does not cause too little gas to enter because of too long gas transmission distance and too much gas loss of the front gas guide pipe 12, so that the sewage in the treatment tank 1 far away from the opening of the first gas cavity 13 is difficult to treat, and the sewage treatment in the treatment tank 1 is not balanced. The two independent spaces of the first air cavity 13 separated by the interlayer 43 are respectively communicated with half of the air guide tubes 12, and the air in the two independent spaces is respectively transmitted to the half of the air guide tubes 12, so that the air can enter each air guide tube 12, the air entering each air guide tube 12 is more balanced, and the sewage treatment in the treatment tank 1 is more balanced.

F. In order to solve two technical problems, namely firstly, some bubbles can be attached to the air duct rotating section 12.2 and cannot play a role in removing dirt, and secondly, the bubbles rise linearly, the path is short, and the adsorbed suspended matters are less, the invention designs the twisted blade 44 and the air duct rotating section 12.2, along with the increase of the air pressure in the first air cavity 13, the air in the air duct rotating section enters the air duct fixing section 12.1 through the one-way valve 26, and when the air flow passes through the twisted blade 44, the twisted blade 44 can rotate, so that the air duct rotating section 12.2 is driven to rotate. The air duct rotates section 12.2 and rotates and to make and to adhere to the bubble that the air duct rotated section 12.2 and all be thrown away, and the bubble that breaks away from air duct 12 like this has more, and absorbent greasy dirt and suspended solid are just more for the scrubbing effect is better, and accelerates the speed that the bubble breaks away from air duct 12, has improved the efficiency of scrubbing. The bubbles formed by the gas passing through the through holes 30 will rise rotationally with the rotation of the rotating section 12.2 of the gas guide tube, and at the same time, the oil and suspended substances in the sewage will adhere to the bubbles until floating on the water surface. The reason for this setting is because the rotatory route that rises of bubble is longer than the route that rises straight line, and the rotatory lift of bubble is more than the adnexed greasy dirt and suspended solid of straight line for scrubbing effect is better, and efficiency is higher.

G. After using a period of time, impurity in the sewage can the adhesion on scoop net 17, just need clear up scoop net 17 this moment, concrete operation is as follows, draw water in handling pond 1 through water pump 51, when water leads to pipe 52 from water jet 53 spun, start rotating electrical machines 47, rotating electrical machines 47 drives brush 49 and rotates, the impurity and the greasy dirt of adhesion on the pivoted washing scoop net 17, can also start push rod motor 16, let scoop net 17 reciprocate, brush 49 just can wash whole scoop net 17 like this, especially when brush 49 is the tube-shape brush, can do the washing at no dead angle. When water jet equipment 53 is above the scoop net 17, the rotating electrical machine 47 is started, the rotating electrical machine 47 drives all connecting shafts 48 to rotate through the belt 46, thereby driving all brushes 49 to rotate, the water sprayed by the water jet equipment 53 can wash the impurities and the oil stains on the front surface and the back surface of the scoop net 17 simultaneously, and the impurities and the oil stains on the two surfaces are flushed into the sewage box 40 together, and the treatment tank 1 can not cause secondary pollution. The water spraying devices 53 are symmetrically arranged, water can be sprayed from two sides of the fishing net 17, so that impurities and oil stains on the front surface and the back surface of the fishing net 17 can be washed simultaneously, the impurities and the oil stains on the two surfaces are flushed into the sewage discharge box 40, and secondary pollution can not be caused to the treatment tank 1.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A sewage treatment device comprises a treatment tank (1), wherein a base (2) is fixed at the bottom of the treatment tank (1), a first support frame (3) is fixedly connected to one side of the top of the treatment tank (1), a notch (6) is formed in the other side of the top of the treatment tank (1), a slope (4) is fixedly connected to the other side of the top of the treatment tank (1), the bottom of the notch (6) is connected with the slope bottom of the slope (4), a sewage discharge box (40) is connected to the outer side wall of the treatment tank (1) in a chain mode, the top of the sewage discharge box (40) is connected with the slope top of the slope (4), a second support frame (5) is installed on one side of the sewage discharge box (40), a transverse rod (7) is fixed between the first support frame (3) and the second support frame (5), the transverse rod (7) is positioned right above the treatment tank (1), an air blower (8) and a water inlet pipeline (9) are installed on one side of the bottom of the treatment tank (1), and a water outlet pipeline (10) is arranged on the other side of the bottom of the treatment tank (1), the water inlet pipeline (9) and the water outlet pipeline (10) are both communicated with the treatment pool (1), a solenoid valve (11) is installed on a pipe section of the water outlet pipeline (10), an air guide pipe (12) is arranged inside the treatment pool (1), a first air cavity (13) is formed inside the base (2), the air guide pipe (12) is communicated with the first air cavity (13), a through hole (30) is formed in the pipe wall of the air guide pipe (12), a guide pipe (14) is arranged inside the base (2), an air outlet of the air blower (8) is communicated with the first air cavity (13) through the guide pipe (14), a stepping motor (15) is arranged on the side surface of the cross rod (7), a push rod motor (16) is fixedly installed on one side of the stepping motor (15), and a fishing net (17) is fixed at the bottom of an output shaft of the push rod motor (16); rubber sealing edges (39) are fixed on both sides and the bottom of the fishing net (17);

a first through groove (18) and a second through groove (19) are formed in the cross rod (7), the first through groove (18) is communicated with the second through groove (19), a rack (21) is fixed on the inner bottom surface of the first through groove (18), a gear (22) is arranged in the first through groove (18), the rack (21) is meshed with the gear (22), a transmission shaft (23) penetrates through the second through groove (19), one end of the transmission shaft (23) is fixed with the gear (22), and the other end of the transmission shaft (23) is fixedly connected with an output shaft of the stepping motor (15);

the inner part of the base (2) is provided with a one-way valve (26), the one-way valve (26) is arranged on a pipe section of the air duct (12), the top of the base (2) is provided with a containing groove (27), the inside of the containing groove (27) is provided with a first lantern ring (29), the inner surface of the first lantern ring (29) is fixed with a first rubber ring (28), the inner surface of the first rubber ring (28) is in close contact with the outer surface of the air duct (12), the outer side of the air duct (12) is provided with three first metal rods (31), the top of the air duct (12) is fixed with an internal thread sleeve (32), the internal thread sleeve (32) is in threaded connection with a thread cover (33), the outer side of the thread cover (33) is movably sleeved with a second lantern ring (34), the first lantern ring (29) is fixedly connected with the second lantern ring (34) through the first metal rod (31), the inside of the air duct (12) is provided with a second metal rod (35), a third lantern ring (36) is arranged at the inner bottom of the air guide pipe (12), a second rubber ring (37) is fixed on the outer surface of the third lantern ring (36), the outer surface of the second rubber ring (37) is in tight contact with the inner surface of the air guide pipe (12), a connecting frame (38) is fixed at the top of the third lantern ring (36), the bottom of a second metal rod (35) is fixed with the connecting frame (38), and the top of the second metal rod (35) is movably connected with the threaded cover (33) through a bearing;

the guide pipe (14) is communicated with the bottom end of the second air cavity (41), and the top end of the second air cavity (41) is communicated with the air outlet nozzle (42);

an interlayer (43) is arranged in the first air cavity (13), the interlayer (43) separates the first air cavity (13) into two independent spaces, the end of the guide pipe (14) connected with the first air cavity (13) is divided into two branch pipes, and the two branch pipes are respectively communicated with the two independent spaces separated by the interlayer (43); two independent spaces of the first air cavity (13) separated by the interlayer (43) are respectively communicated with half of the number of the air guide pipes (12);

the partition (43) comprises a middle partition section (43.1), an axial partition section (43.2) and a connecting partition section (43.3), the connecting partition section (43.3) is connected with one end of the guide pipe (14) and one end of the axial partition section (43.2), and the middle partition section (43.1) is connected with the middle of the inner upper wall of the first air cavity (13) and the middle of the axial partition section;

the air duct (12) comprises an air duct fixing section (12.1) and an air duct rotating section (12.2), the first air cavity (13) is communicated with the air duct fixing section (12.1), the air duct fixing section (12.1) is rotatably connected with the air duct rotating section (12.2) through a first bearing (45), and the bottom of the air duct rotating section (12.2) is connected with a twisted blade (44);

the top of the second support frame (5) is connected with a fixed rod (54), the fixed rod (54) is fixedly connected with a water pipe (52), one end of the water pipe (52) is communicated with a water spraying device (53), the other end of the water pipe (52) is communicated with a water pump (51), the water pump (51) is positioned in the treatment pool (1), and the water spraying device (53) is positioned between the cross rod (7) and the sewage draining box (40); the second support frame (5) is rotatably connected with the connecting shafts (48) through second bearings (50), the number of the connecting shafts (48) is 5-9, belts (46) are sleeved on the outer sides of all the connecting shafts (48), one end of each connecting shaft (48) is connected with a brush (49), a rotating motor (47) is installed on the outer side of the second support frame (5), the output end of the rotating motor (47) is connected with the other end of one connecting shaft (48), and the brush (49) is located between the water spraying device (53) and the sewage draining box (40).