CN115771959B - The method comprises the following steps of: for intelligence waste water of car washer treatment circulation system and a method of treating the same - Google Patents

Abstract

The invention relates to a water recycling technology, in particular to a wastewater treatment circulating system for an intelligent car washer and a treatment method thereof, wherein the system comprises a cabin body, a grid treatment cabin, a flocculation cabin, an aeration cabin and a circulating cabin which are arranged in the cabin body; three medicine boxes are suspended above the flocculation cabin; the upper edges of the three medicine boxes are connected with the lower surface of the upper cover; the bottoms of the three medicine boxes are all is provided with a medicine-feeding hole which is provided with a medicine-feeding hole, a movable bottom plate is also arranged between the medicine chest and the top of the flocculation cabin, and is attached to the bottom of the medicine chest; the movable bottom plate is matched with the drug feeding mechanism; the bottom of the flocculation cabin is also provided with a dissolution reaction component which is also matched with the dosing mechanism. The dosing mechanism and the dissolution reaction component enable the addition of the three medicaments and the mixing reaction to establish a mechanical coordination relationship, ensure that the medicaments can be put into the flocculation chamber according to a given sequence, and turbulence is continuously generated in the wastewater in the flocculation chamber in the process of adding the medicine, so that the medicine is ensured to be fully combined with the wastewater.

Description

Wastewater treatment circulating system for intelligent car washer and treatment method thereof

Technical Field

The invention relates to a water recycling technology, in particular to a wastewater treatment circulating system for an intelligent car washer and a treatment method thereof.

Background

Although most of domestic automobile service stores still use manual car washing modes at present, intelligent automobile modes have started to accelerate development. In foreign countries, intelligent car washing machines belong to popular car washing modes and are spread over living service areas. The domestic car washer is mainly covered in specific places such as gas stations, 4S shops and the like at present, and lacks application scenes of activation.

The intelligent car washer can not be covered on a large scale, so that the application scene is lack, and the intelligent car washer is mainly in two aspects; on the one hand the price of the equipment and on the other hand the treatment of the waste water; the most important reason is the subsequent treatment of the wastewater. The car washing equipment for car door store service has lower equipment cost, but has higher labor cost; the intelligent car washer has higher equipment price, but saves a great deal of labor cost.

Because the efficiency of manual service car washing in a store is generally low, the number of vehicles to be washed every day is not too large, and the generated waste water is not much; most of waste water generated by store car washing is basically discharged to a municipal sewage pipe network, and the waste water from car washing and other common domestic sewage are discharged to a sewage treatment plant together by the municipal sewage pipe network for indiscriminate treatment.

The daily car washing quantity of the intelligent car washer can be multiplied by tens of times or even tens of times, and the generated car washing wastewater quantity is increased in a corresponding way; therefore, the wastewater can not be directly discharged into the urban sewage pipe network, but can be discharged into the sewage pipe network after the wastewater reaches the standard after pretreatment.

At present, no treatment system for car washing sewage exists in the market, and pretreatment cannot be carried out on the car washing sewage, so that the invention provides a wastewater treatment circulation system for an intelligent car washing machine and a treatment method thereof.

Disclosure of Invention

The invention aims to provide a wastewater treatment circulating system for an intelligent car washer and a treatment method thereof, so as to solve the problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the wastewater treatment circulation system for the intelligent car washer comprises a cabin body with a through top and a through bottom, and further comprises a grid treatment cabin, a flocculation cabin, an aeration cabin and a circulation cabin which are arranged in the cabin body; the grid treatment cabin, the flocculation cabin, the aeration cabin and the circulation cabin are communicated with each other; a lifting type grille structure is arranged in the grille treatment cabin and is used for removing larger suspended matters in the wastewater from the grille treatment cabin in a lifting and dumping mode;

three medicine boxes are suspended above the flocculation cabin, and coagulant, magnetic seeds and coagulant aid are respectively placed in the three medicine boxes; the upper part of the cabin body is detachably provided with an upper cover through bolts, and the upper edges of the three medicine boxes are connected with the lower surface of the upper cover; the bottoms of the three medicine boxes are provided with medicine feeding holes, a movable bottom plate is arranged between the medicine boxes and the tops of the flocculation cabins, and the movable bottom plate is attached to the bottoms of the medicine boxes; the movable bottom plate is matched with the drug feeding mechanism;

the bottom of the flocculation cabin is also provided with a dissolution reaction component which is matched with the drug administration mechanism so as to combine the drug put into the flocculation cabin with the wastewater in a quickening way when the drug is put into the flocculation cabin.

Wastewater treatment circulation system for intelligent car washer as described above: a suspension is arranged above the flocculation cabin and connected below the upper cover through a hanging beam, and a plurality of belt wheels are distributed below the suspension;

the medicine feeding mechanism comprises a driving belt connected with a plurality of belt wheels, the belt wheels are rotationally connected with the suspension, a fixed column is connected to one surface of the driving belt facing the medicine box, and the fixed column is matched with a track arranged on the movable bottom plate;

the drug administration mechanism also comprises a motor arranged on the suspension and a main shaft connected with the output end of the motor, wherein the main shaft is connected with one of the belt pulleys;

the main shaft passes through the suspension and is in rotating fit with the suspension.

Wastewater treatment circulation system for intelligent car washer as described above: the automatic medicine box is characterized in that at least two hanging rods are connected to the outer side wall of the medicine box, a guide pillar is connected to the hanging rods, the guide pillar is perpendicular to the medicine feeding pore space, a lifting lug is connected to the upper surface of the movable bottom plate, the lifting lug is in sliding fit with the guide pillar, a first spring is sleeved on the guide pillar, and the first spring is elastically connected with the lifting lug and the hanging rods.

Wastewater treatment circulation system for intelligent car washer as described above: the dissolution reaction assembly comprises a stirring shaft which is horizontally and rotatably arranged at the center of the bottom of the flocculation cabin, and the stirring shaft is connected with the lower end of the main shaft through a bevel gear set; a plurality of groups of straight blades are circumferentially arranged on the stirring shaft;

the bevel gear group comprises a first bevel gear connected to the lower end of the main shaft and a second bevel gear connected to the stirring shaft, and the two bevel gears are meshed with each other.

Wastewater treatment circulation system for intelligent car washer as described above: the dissolution reaction assembly further comprises side shafts symmetrically arranged on two sides below the stirring shaft, a plurality of groups of torsion blades are circumferentially arranged on the side shafts, the side shafts are connected with second gears, and the second gears are meshed with first gears connected to the stirring shaft.

Wastewater treatment circulation system for intelligent car washer as described above: the lifting type grid structure comprises a lifting cylinder vertically arranged below the inner part of the grid treatment cabin, a supporting rod, a fixed shaft and a lifting grid plate, wherein the lower end of the supporting rod is connected with the upper end of the lifting cylinder, the fixed shaft is rotationally sleeved with the upper end of the supporting rod, and one side edge of the lifting grid plate is connected with the fixed shaft;

two ends of the fixed shaft are respectively provided with an embedded wheel in a rotating way, embedded grooves are symmetrically formed in two sides of the inner wall of the grille treatment cabin, and the embedded wheels are embedded in the embedded grooves in a rolling way; the lifting grating plates are overlapped and slidably embedded with telescopic grating plates; the lower part of the telescopic grating plate is connected with a connecting column, and the connecting column is inserted with a column sleeve connected to the lower part of the lifting grating plate in a sliding way; the outside cover of spliced pole is equipped with No. two springs, no. two spring elastic connection the post cover and spliced pole.

Wastewater treatment circulation system for intelligent car washer as described above: a third gear is rotatably arranged at the joint of the lower end of the supporting rod and the upper end of the lifting cylinder, and the third gear is connected with the lifting grating plate through a connecting rod; one end of the connecting rod is rotationally connected with the lifting grating plate through a rotary pin, and the other end of the connecting rod is rotationally connected with the eccentric part on one side of the third gear; and the toothed plate is connected to the inner wall of the grille treatment cabin, and a roller is rotatably arranged at the edge of one side of the telescopic grating plate, which is far away from the fixed shaft, and is in rolling fit with the inner wall of the grille treatment cabin.

Wastewater treatment circulation system for intelligent car washer as described above: a liquid pumping structure is further arranged among the grid treatment cabin, the flocculation cabin, the aeration cabin and the circulation cabin, the liquid pumping structure comprises an impeller pump arranged on the outer walls of the flocculation cabin, the aeration cabin and the circulation cabin, and a water injection flange joint is arranged at the upper part of the grid treatment cabin; the water injection flange joint penetrates through the cabin body and protrudes out of the cabin body;

the liquid pumping structure further comprises a lifting pipe, wherein the lifting pipe is divided into two sections, namely an upper lifting pipe and a lower lifting pipe; the lower lifting pipe is connected with the water inlet of the impeller pump, and the upper lifting pipe is connected with the water outlet of the impeller pump;

the pump liquid structure is three groups, impeller shafts of impeller pumps in the three groups of pump liquid structure are coaxially connected through connecting shafts, and one impeller shaft is connected with the output end of the motor;

the circulating cabin is communicated with the grid treatment cabin through a backflow structure, the backflow structure comprises a backflow pump arranged on the outer wall of the circulating cabin, the backflow pump is communicated with the middle position of the circulating cabin and the bottom of the grid treatment cabin through a backflow pipe, and an impeller shaft of the backflow pump is synchronously driven with the connecting shaft through a belt.

Wastewater treatment circulation system for intelligent car washer as described above: the bottom of the aeration cabin is provided with an air distribution disc, and a filter frame is also arranged in the aeration cabin, the filter frame is arranged above the air distribution disc, and after wastewater enters the aeration cabin, magnetic flocs are separated from liquid wastewater through the filter frame; the air distribution disc forcedly transfers oxygen in the air from the bottom of the aeration cabin to the separated liquid wastewater so as to increase the dissolved oxygen amount of the wastewater and oxidize and decompose organic matters in the wastewater.

A method for circularly treating wastewater of an intelligent car washer by using the system comprises the following steps:

step one, injecting waste water into the upper part of a grid treatment cabin in the cabin body through a water injection flange joint, wherein the injection amount of the waste water is kept to be higher than a lifting pipe and lower than a lifting grid plate;

step two, starting a lifting cylinder to drive a third gear, a supporting rod, a connecting rod and a fixed shaft to ascend, and removing larger suspended matters in the wastewater from the grid treatment cabin; and then is paired with the lifting cylinder is decompressed, resetting the third gear, the support rod, the connecting rod and the fixed shaft;

step three, respectively adding a predetermined part of coagulant, magnetic seeds and coagulant aid into the three medicine boxes, pre-starting a motor, and adjusting a fixed column to a position close to the medicine box loaded with the coagulant;

starting a motor to enable the wastewater to stably and circularly flow among the grid treatment cabin, the flocculation cabin, the aeration cabin and the circulation cabin; starting the air pump and the motor, and operating the wastewater treatment;

and fifthly, after circulating for a plurality of periods, sampling water on the upper layer of the circulating cabin and detecting water quality.

Compared with the prior art, the invention has the beneficial effects that: the waste water stably and circularly flows among the grid treatment cabin, the flocculation cabin, the aeration cabin and the circulation cabin through the three groups of pump liquid structures and the group of reflux structures.

In addition, the drug administration mechanism and the dissolution reaction component arranged in the invention enable the three drugs to be sequentially added into the flocculation chamber and a mechanical coordination relation to be established between the drugs and the mixed reaction, ensure that the drugs can be put into the flocculation chamber according to a set sequence, and continuously generate turbulence in the wastewater in the flocculation chamber in the process of putting the drugs, thereby ensuring that the drugs are fully combined with the wastewater.

Finally, by the lifting type grid structure provided by the invention, larger suspended matters in the wastewater can be separated from the wastewater and automatically incline and topple.

Drawings

FIG. 1 is an isometric view of a wastewater treatment circulation system for an intelligent car washer;

FIG. 2 is a schematic diagram of a wastewater treatment circulation system for an intelligent car washer;

FIG. 3 is a schematic diagram of the structure of the wastewater treatment circulation system for the intelligent car washer after the cabin is removed;

FIG. 4 is a schematic view of the structure of FIG. 3 in yet another orientation;

FIG. 5 is a schematic view of the structure of FIG. 4 after removal of the upper cover and inspection of the chimney;

FIG. 6 is a schematic view of the structure of the grating treatment chamber after separation from the skid-mounted base;

FIG. 7 is a schematic view of a lifting grid structure in a grid process chamber;

FIG. 8 is a schematic view of a semi-sectional structure of a grating treatment chamber;

FIG. 9 is a schematic view of the structure of the flocculation chamber and the upper cover;

FIG. 10 is a schematic view of the structure of FIG. 9 in yet another orientation;

FIG. 11 is a schematic view of an exploded construction of the administration mechanism;

FIG. 12 is a schematic view of the dissolution reaction module in connection with a drug administration mechanism;

FIG. 13 is a schematic illustration of the engagement of a drug delivery mechanism with three drug cassettes;

FIG. 14 is a schematic view of the lower movable floor of the medicine box after separation from the guide posts;

FIG. 15 is a schematic view of the structure of FIG. 14 in yet another orientation;

FIG. 16 is a schematic view of the interior of the flocculation chamber with the partition removed;

FIG. 17 is a schematic view of the structure of the aeration tank;

FIG. 18 is a schematic view of the structure of the aeration tank after the filter frame is removed from the aeration tank based on FIG. 17;

in the figure: 1. a cabin body; 2. an upper cover; 3. checking chimney; 4. a ceiling; 5. an air pump; 6. a grille treatment compartment; 7. a flocculation cabin; 8. an aeration cabin; 9. a circulation cabin; 10. a separation port; 11. a motor; 12. a vane pump; 13. a connecting shaft; 14. a riser; 15. a reflux pump; 16. a return pipe; 17. a belt; 18. a partition plate; 19. gangway ladder; 20. a trapezoidal guide groove; 21. a suspension; 22. a hanging beam; 23. a medicine box; 24. a door; 25. a motor; 26. a transmission belt; 27. fixing the column; 28. a belt wheel; 29. a main shaft; 30. a first bevel gear; 31. a second bevel gear; 32. turning over the stirring shaft; 33. straight blades; 34. a first gear; 35. a second gear; 36. a side shaft; 37. twisting the blade; 38. a movable bottom plate; 39. a track; 40. a guide post; 41. a first spring; 42. lifting lugs; 43. lifting the grating plate; 44. a telescopic grating plate; 45. a roller; 46. a connecting column; 47. a second spring; 48. a column sleeve; 49. a fixed shaft; 50. embedding wheels; 51. a support rod; 52. a lifting cylinder; 53. a third gear; 54. a connecting rod; 55. a toothed plate; 56. a caulking groove; 57. a filter frame; 58. an air pipe; 59. an air distribution plate; 60. and a ground beam.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1 to 18, as an embodiment of the present invention, the wastewater treatment circulation system for an intelligent car washer includes a cabin body 1 with a top and a bottom penetrating, wherein the cabin body 1 is used as a shelter for wastewater treatment circulation, and has the same shape as a container, or can be directly transformed from a waste container;

the concrete transformation mode is that the tail door of the container is welded, and then the bottom and the top of the container are cut to be communicated up and down; the waste container can be reused, the transformation difficulty is small, and the transformation cost is low. Naturally, the shelter of this construction can also be produced directly for use as the shelter 1.

The floor beams 60 with the same height are arranged at the bottom of the inner wall of the cabin body 1, the floor beams 60 are four in number, are connected end to end and are arranged at the bottom of the cabin body 1 through bolts so as to form a skid-mounted base, and the skid-mounted base is convenient to install and detach.

The system further comprises a grid treatment cabin 6, a flocculation cabin 7, an aeration cabin 8 and a circulation cabin 9 which are arranged in the cabin body 1, wherein the four cabins are sequentially distributed in the cabin body 1 along the length direction of the cabin body 1, and the bottoms of the four cabins are all arranged on the skid-mounted base through bolts.

The grid treatment cabin 6, the flocculation cabin 7, the aeration cabin 8 and the circulation cabin 9 are communicated with each other; specifically, the bottom of the grid treatment cabin 6 is communicated with the upper part of the flocculation cabin 7, the bottom of the flocculation cabin 7 is communicated with the upper part of the aeration cabin 8, the bottom of the aeration cabin 8 is communicated with the upper part of the circulation cabin 9, and the middle position of the circulation cabin 9 is communicated with the bottom of the grid treatment cabin 6; the four are communicated with each other in a circulating way so as to carry out circulating treatment on the wastewater in a circulating way.

The lifting type grille structure is arranged in the grille treatment cabin 6 and is used for removing larger suspended matters in the wastewater from the grille treatment cabin 6 in a lifting and dumping mode; because a large amount of sundries including soil, straw in the soil, dead branches, fallen leaves, stones and the like are attached to the vehicle body to be cleaned, the sundries are mixed in waste water generated by vehicle washing, and the sundries such as the straw, the dead branches, fallen leaves, the stones and the like can be separated through the grid treatment cabin 6.

Three medicine boxes 23 are suspended above the flocculation cabin 7, and coagulant, magnetic seeds and coagulant aid are respectively placed in the three medicine boxes 23; the wastewater from which larger suspended matters are separated by the lifting type grid structure is discharged into the flocculation chamber 7, and medicines in the three medicine boxes 23 are respectively thrown into the flocculation chamber 7 according to the sequence of firstly throwing coagulant, then throwing magnetic seeds and finally throwing coagulant aid;

in detail, the action mechanism of the wastewater and the coagulant is as follows: the smaller suspended matter colloid and the dispersed particles in the wastewater generate floccules under the interaction of molecular force, and collide with each other to agglomerate in the sedimentation process, so that the size and the mass of the floccules are continuously increased, and the sedimentation speed is improved.

The action mechanism of the magnetic seed is as follows: the magnetic substances or weak magnetic substances in the wastewater are combined with the magnetic seeds to increase the specific surface area and are attached to floccules with larger volume to form magnetic floccules; is helpful for reducing substances such as chromaticity, turbidity and the like of the wastewater.

Since the body member is mostly steel or iron, oxides (e.g., rust) on the body surface are detached during washing, and a small amount of strong magnetic substances are contained in the wastewater; the magnetic substances in the wastewater can be separated by the arranged magnetic seeds.

The technology for removing magnetism in sewage is widely applied to the treatment of wastewater in steel industry such as steel hot rolling wastewater, continuous casting wastewater, cold rolling emulsion and the like; unlike the present invention, the proportion of the ferromagnetic waste water in the waste water produced in the steel-making and iron-making industry can reach 98%, so that the present invention needs to be matched with a high gradient magnetic separation technology (HGMS technology), namely a Kolm-Marston modern high gradient magnetic separator (High Gradient Magnetic Separator) which is formed by combining steel wool micro magnetic gathering media and iron armour coils; the content of the ferromagnetic substance in the wastewater is extremely low, so that a small amount of ferromagnetic substance can be removed only by adding magnetic seeds.

Finally, coagulant aid is added, wherein after most suspended matter colloid, dispersed particles and magnetic substances in the wastewater form magnetic flocs, a small amount of impurities and medicines which are not completely coagulated still exist in the liquid wastewater; at the moment, the combination of unreacted medicines and uncondensed impurities in the liquid wastewater can be improved by adding coagulant aid into the flocculation chamber 7, so that the action efficiency of the medicines can be improved on one hand, and a large amount of unreacted medicines are prevented from being contained in the wastewater; on the other hand, the content of colloid, particles and magnetic substances in the wastewater can be further reduced.

The bottom of the aeration cabin 8 is provided with an air distribution plate 59, and a filter frame 57 is also arranged in the aeration cabin 8, wherein the filter frame 57 is arranged above the air distribution plate 59, and after wastewater enters the aeration cabin 8, magnetic flocs are separated from liquid wastewater through the filter frame 57; the air distribution plate 59 forcibly transfers oxygen in the air from the bottom of the aeration tank 8 to the separated liquid wastewater so as to increase the dissolved oxygen amount of the wastewater and oxidize and decompose organic matters in the wastewater.

Finally, the wastewater enters the circulation cabin 9 to be precipitated, wherein the precipitated objects are mainly impurities which have larger mass and can not form floccules, such as gravel and the like, in the wastewater, and the mass of the precipitate is larger, so that the wastewater stays at the bottom of the circulation cabin 9 relatively stably to be separated from the wastewater;

thus completing a full cycle of processing.

Then the wastewater in the circulation cabin 9 enters the grille treatment cabin 6 again to carry out the treatment of the second period, so as to realize the circulation purification; since the middle position of the circulation tank 9 communicates with the bottom of the grid treatment tank 6, the impurities precipitated at the bottom of the circulation tank 9 do not enter the grid treatment tank 6.

In addition, since the wastewater in the circulation tank 9 is already wastewater treated by the lifting type grating structure, it is not required to lift it to the upper portion of the grating treatment tank 6; but only need to be fed to the bottom of the grating treatment chamber 6 to be fed into the flocculation chamber 7 for a secondary dosing.

An upper cover 2 is detachably arranged on the upper part of the cabin body 1 through bolts, three inspection chimneys 3 are arranged on the surface of the upper cover 2, and the three inspection chimneys 3 respectively correspond to a grid treatment cabin 6, a flocculation cabin 7 and a circulation cabin 9; a top cover is hinged to the top of each inspection chimney 3;

each inspection chimney 3 is communicated with the interior of the cabin body 1 so as to facilitate inspection of the interior of the grille treatment cabin 6, the flocculation cabin 7 and the circulation cabin 9 or to eliminate faults in the grille treatment cabin 6, the flocculation cabin 7 and the circulation cabin 9 by opening the top cover on the premise of not disassembling the upper cover 2.

A ceiling 4 is also arranged on the surface of the upper cover 2, and the ceiling 4 corresponds to the aeration cabin 8; an air pump 5 is arranged between the ceiling 4 and the upper cover 2, and the air pump 5 is arranged on the upper cover 2 and is communicated with an air distribution disc 59 through an air pipe 58;

the top of the aeration tank 8 is provided with a baffle 18, the air pipe 58 passes through the upper cover 2, the partition 18, and the filter frame 57 to communicate with the air distribution tray 59.

Note that the air inlet end of the air pump 5 is vertically upward, dust and suspended matters in the air can be effectively reduced through the arranged ceiling 4, and enter the air pump 5 through the air inlet end of the air pump 5; in addition, the substances outside the cabin body 1 can be prevented from falling into the air pump 5 through the arranged ceiling 4, and the safety protection effect on the air pump 5 is achieved.

The air distribution plate 59 continuously introduces air into the aeration cabin 8 from the bottom of the aeration cabin 8, and part of undissolved air overflows from the wastewater in the aeration cabin 8 and is discharged from a gap between the partition 18 and the top of the aeration cabin 8; the rate of air removal from the aeration tank 8 is reduced by the provision of the partition 18, and the residence time of the air in the aeration tank 8 is prolonged as much as possible to increase the amount of dissolved oxygen in the wastewater.

A liquid pumping structure is further arranged among the grid treatment cabin 6, the flocculation cabin 7, the aeration cabin 8 and the circulation cabin 9, the liquid pumping structure comprises an impeller pump 12 arranged on the outer walls of the flocculation cabin 7, the aeration cabin 8 and the circulation cabin 9, and a water injection flange joint is arranged at the upper part of the grid treatment cabin 6; the water injection flange joint penetrates through the cabin body 1 and protrudes out of the cabin body 1.

Waste water is injected into the upper part of the grid treatment cabin 6 in the cabin body 1 through the water injection flange joint outside the cabin body 1.

The liquid pumping structure further comprises a lifting pipe 14, wherein the lifting pipe 14 is divided into two sections, namely an upper lifting pipe and a lower lifting pipe; the lower riser is connected with the water inlet of the impeller pump 12, and the upper riser is connected with the water outlet of the impeller pump 12.

The pump liquid structures are three groups, and the first group of pump liquid structures are communicated with the bottom of the grid treatment cabin 6 and the upper part of the flocculation cabin 7; the second group of pump liquid structures are communicated with the bottom of the flocculation cabin 7 and the upper part of the aeration cabin 8; the third group of pump liquid structure is communicated with the bottom of the aeration cabin 8 and the upper part of the circulating cabin 9; and the three groups of pump liquid structures are arranged at equal heights.

Impeller shafts of the impeller pumps 12 in the three-group liquid pumping structure are coaxially connected through a connecting shaft 13, and one impeller shaft is connected with the output end of the motor 11.

The motor 11 works to drive the impeller shafts in the prefabricated connection to rotate, and the rotating impeller shafts drive the impeller shafts in the other two impeller pumps 12 to rotate by utilizing the connecting shaft 13, so that the three impeller pumps 12 work synchronously at the same speed, the constant-speed flow of the wastewater among the flocculation chamber 7, the aeration chamber 8 and the circulation chamber 9 is realized, and the liquid level of each chamber is kept relatively stable.

The circulation cabin 9 is communicated with the grid treatment cabin 6 through a backflow structure, the backflow structure comprises a backflow pump 15 arranged on the outer wall of the circulation cabin 9, the backflow pump 15 is communicated with the middle position of the circulation cabin 9 and the bottom of the grid treatment cabin 6 through a backflow pipe 16, and an impeller shaft of the backflow pump 15 is synchronously driven with the connecting shaft 13 through a belt 17.

As can be seen from the accompanying drawings, the connecting shaft 13 penetrates through the flocculation chamber 7 and the aeration chamber 8 respectively, an O-shaped sealing ring which is in sealing and rotating connection with the connecting shaft 13 is arranged at the penetrating position of the connecting shaft 13, and the O-shaped sealing rings are arranged on the side walls of the flocculation chamber 7 and the aeration chamber 8 respectively.

The belt 17 achieves a constant speed transmission between the connecting shaft 13 and the impeller shaft of the return pump 15.

I.e. the flow rate of the wastewater pumped from the grid treatment tank 6 to the flocculation tank 7, the flocculation tank 7 to the aeration tank 8, the aeration tank 8 to the circulation tank 9, and the circulation tank 9 to the grid treatment tank 6 is the same. And the three impeller pumps 12 and the reflux pump 15 are operated in synchronization, so that the wastewater is circulated smoothly between the four tanks.

The upper edges of the three medicine boxes 23 are connected with the lower surface of the upper cover 2 so as to be suspended above the flocculation chamber 7; the upper cover 2 is provided with a medicine feeding port corresponding to each of the three medicine boxes 23, and each medicine feeding port is hinged with a box door 24.

The box door 24 is provided to isolate the medicine in the medicine box 23 from the outside air, so that on one hand, the outside pollutant can be prevented from being immersed into the medicine, and on the other hand, the medicine in the medicine box 23 can be prevented from being oxidized or from being wet. When the medicine in the medicine tank 23 is completely put, the medicine can be added to the medicine tank 23 by opening the door 24.

The bottoms of the three medicine boxes 23 are provided with medicine feeding holes, a movable bottom plate 38 is arranged between the medicine boxes 23 and the top of the flocculation chamber 7, and the movable bottom plate 38 is attached to the bottom of the medicine boxes 23; the movable bottom plates 38 are matched with the dosing mechanism, so that the movable bottom plates 38 at the bottoms of the three medicine boxes 23 are sequentially opened and closed, and medicines are respectively thrown into the flocculation chamber 7 according to the sequence of firstly throwing coagulant, then throwing magnetic seeds and finally throwing coagulant aids.

The bottom of the flocculation chamber 7 is also provided with a dissolution reaction component which is matched with the drug administration mechanism so as to combine the drug which is accelerated to be put into the flocculation chamber 7 with the wastewater when the drug is put into the flocculation chamber 7.

A suspension bracket 21 is arranged above the flocculation chamber 7, the suspension bracket 21 is connected below the upper cover 2 through a suspension beam 22, and a plurality of belt wheels 28 are distributed below the suspension bracket 21;

the medicine feeding mechanism comprises a driving belt 26 connected with a plurality of belt wheels 28, the belt wheels 28 are rotatably connected with a suspension 21, a fixed column 27 is connected to one surface of the driving belt 26 facing the medicine box 23, and the fixed column 27 is matched with a track 39 arranged on a movable bottom plate 38;

the dosing mechanism further comprises a motor 25 arranged on the suspension 21 and a main shaft 29 connected with the output end of the motor 25, wherein the main shaft 29 is connected with one of belt wheels 28;

the spindle 29 passes through the suspension 21 and is in rotational engagement with the suspension 21.

Wherein the track 39 is divided into a start section, a middle section, and an end section, the end section and the start section are collinear, the middle section is parallel to the end section and the start section, and the middle section is adjacent to the administration aperture; the middle section and the initial section and the final section are smoothly transited.

Further, at least two hanging rods are connected to the outer side wall of the medicine box 23, a guide column 40 is connected to the hanging rods, the guide column 40 is perpendicular to the medicine administration pore space, a lifting lug 42 is connected to the upper surface of the movable bottom plate 38, the lifting lug 42 is in sliding fit with the guide column 40, a first spring 41 is sleeved on the guide column 40, and the first spring 41 is elastically connected with the lifting lug 42 and the hanging rods.

When the motor 25 works, the main shaft 29 can be driven to rotate, and the rotating main shaft 29 drives the belt pulley 28 connected with the main shaft to rotate, so that the driving belt 26 is driven to run; the driving belt 26 can drive the fixed column 27 to move along the direction of the driving belt 26 when in operation.

When the fixed column 27 moves to the initial section of the track 39, the fixed column 27 is embedded into the initial section, and when the fixed column 27 transits from the initial section of the track 39 to the middle section, the movable bottom plate 38 is driven to move along the guide post 40 under the guiding action of the lifting lug 42, and the medicine administration hole is opened to administer medicine into the flocculation chamber 7;

when the fixed column 27 transits from the middle section to the end section of the track 39, the movable bottom plate 38 is driven to reset under the auxiliary action of the first spring 41 so as to reseat the administration hole and end administration.

The fixed columns 27 are sequentially matched with the tracks 39 on the three movable bottom plates 38, so that the medicines in the three medicine boxes 23 are sequentially and respectively put coagulant, magnetic seeds and coagulant aid into the flocculation chamber 7.

The dissolution reaction assembly comprises a stirring shaft 32 horizontally and rotatably arranged at the center of the bottom of the flocculation chamber 7, and the stirring shaft 32 is connected with the lower end of the main shaft 29 through a bevel gear set; a plurality of groups of straight blades 33 are circumferentially arranged on the stirring shaft 32;

the bevel gear set comprises a first bevel gear 30 connected to the lower end of the main shaft 29 and a second bevel gear 31 connected to a stirring shaft 32, wherein the two bevel gears are meshed with each other.

Wherein, the inner wall of the flocculation chamber 7 is provided with a shaft seat, and one part of the lower part of the main shaft 29, which is close to the first bevel gear 30, passes through the shaft seat and is rotationally connected with the shaft seat.

When the main shaft 29 rotates, the first bevel gear 30 is driven to rotate, the first bevel gear 30 drives the second bevel gear 31 to rotate, so that the stirring shaft 32 and a plurality of groups of straight blades 33 on the stirring shaft 32 rotate, and the plurality of groups of straight blades 33 mix the thrown medicine with the wastewater along the circumferential direction of the stirring shaft 32.

Since the straight blades 33 are provided along the radial direction of the stirring shaft 32, the waste water and the medicine in the waste water are stirred up and down during the rotation.

The dissolution reaction assembly further comprises side shafts 36 symmetrically arranged at two sides below the stirring shaft 32, a plurality of groups of torsion blades 37 are circumferentially arranged on the side shafts 36, a second gear 35 is connected to the side shafts 36, and the second gear 35 is meshed with a first gear 34 connected to the stirring shaft 32.

When the stirring shaft 32 rotates, the first gear 34 is driven to rotate, and the rotating first gear 34 drives the second gear 35 to rotate, so that the side shafts 36 on two sides rotate, and the side shafts 36 drive the torsion blades 37 thereon to rotate.

Because the torsion blades 37 have a torsion inclination, not only can the waste water and the medicine be stirred during rotation, but also an axial component force is given to the waste water, so that the waste water can flow left and right at the bottom of the flocculation chamber 7, and turbulence is formed by combining the stirring of the straight blades 33, so that the medicine can be uniformly dispersed at the bottom of the flocculation chamber 7 and fully and uniformly combined with the waste water.

The lifting type grid structure comprises a lifting cylinder 52 vertically arranged below the inner part of the grid treatment cabin 6, a supporting rod 51, a fixed shaft 49 and a lifting grid plate 43, wherein the lower end of the supporting rod 51 is connected with the upper end of the lifting cylinder 52, the fixed shaft 49 is rotatably sleeved with the upper end of the supporting rod 51, and one side edge of the lifting grid plate 43 is connected with the fixed shaft 49;

two ends of the fixed shaft 49 are respectively provided with an embedded wheel 50 in a rotating way, embedded grooves 56 are symmetrically formed in two sides of the inner wall of the grille treatment cabin 6, and the embedded wheels 50 are embedded in the embedded grooves 56 in a rolling way; a telescopic grating plate 44 is embedded in the lifting grating plate 43 in an overlapping sliding manner; the lower part of the telescopic grating plate 44 is connected with a connecting column 46, and the connecting column 46 is in sliding insertion with a column sleeve 48 connected to the lower part of the lifting grating plate 43; the connecting column 46 is externally sleeved with a second spring 47, and the second spring 47 is elastically connected with the column sleeve 48 and the connecting column 46.

A third gear 53 is rotatably provided at the connection of the lower end of the supporting rod 51 and the upper end of the lifting cylinder 52, the third gear 53 is connected to the lifting grid 43 by a link 54.

Specifically, one end of the connecting rod 54 is rotationally connected with the lifting grating plate 43 through a rotating pin, and the other end is rotationally connected with an eccentric part on one side of the third gear 53; and a toothed plate 55 is connected to the inner wall of the grille treatment cabin 6, and a roller 45 is rotatably arranged at the edge of one side of the telescopic grating plate 44 away from the fixed shaft 49, and the roller 45 is in rolling fit with the inner wall of the grille treatment cabin 6.

Wherein lift cylinders 52 include, but are not limited to, conventional hydraulic cylinders, electromagnetic cylinders, pneumatic cylinders, and the like.

The lifting cylinder 52 drives the third gear 53, the supporting rod 51, the connecting rod 54 and the fixed shaft 49 to ascend, the fixed shaft 49 drives the lifting grating plate 43 to ascend under the action of the embedded wheel 50 and the embedded groove 56, the telescopic grating plate 44 is driven to ascend in a following way, and the third gear 53 is not contacted with the toothed plate 55 at the beginning of the ascending; in this process, the rotation center of the third gear 53, one end of the link 54, and the other end of the link 54 are on the same line, so that the weight carried on the lifting grid plate 43 and the expansion grid plate 44 cannot drive the lifting grid plate 43 and the expansion grid plate 44 to turn down.

When the lifting cylinder 52 drives the third gear 53 to lift to approach the top end of the stroke, the third gear 53 starts to mesh with the toothed plate 55, and then the third gear 53 rotates when lifting continuously, so as to drive the lifting grid plate 43 to deflect upwards around the fixed shaft 49 through the connecting rod 54, and further drive the telescopic grid plate 44 to turn upwards together; in the process of upwards overturning the telescopic grating plate 44, the second spring 47 is utilized to drive the telescopic grating plate 44 to extend towards the direction far away from the lifting grating plate 43, the roller 45 is kept to be always attached to the inner wall of the grating treatment cabin 6, and gaps are prevented from being formed between the edge of the telescopic grating plate 44 and the inner wall of the grating treatment cabin 6, so that heavy objects fall into the bottom of the grating treatment cabin 6.

When the lifting cylinder 52 drives the third gear 53, the supporting rod 51, the connecting rod 54 and the fixed shaft 49 to rise to the top end of the stroke, the telescopic grating plate 44 and the lifting grating plate 43 form an inclined shape so as to facilitate the discharge of heavy objects thereon from the grating treatment chamber 6.

When the lifting cylinder 52 drives the third gear 53, the supporting rod 51, the connecting rod 54 and the fixed shaft 49 to descend from the top end of the stroke, firstly, the third gear 53 and the toothed plate 55 are matched to drive the telescopic grating plate 44 and the lifting grating plate 43 to reversely deflect while downwards moving; when the third gear 53 is separated from the toothed plate 55, the expansion grid plate 44 and the lifting grid plate 43 are restored to the horizontal position, at this time, the elastic force given to the expansion grid plate 44 by the second spring 47 is in the horizontal direction, and the connecting rod 54 is restored to be collinear with the rotation center of the third gear 53, one end of the connecting rod 54, and the other end of the connecting rod 54, so that the expansion grid plate 44 and the lifting grid plate 43 at this time are in the balanced position; in addition, the telescopic grating plates 44 and the lifting grating plates 43 can be kept in a horizontal state all the time by the self-weight of the telescopic grating plates 44 and the lifting grating plates 43.

The side of the grille treatment cabin 6, which is close to the fixed shaft 49, is provided with a trapezoidal guide groove 20, the trapezoidal guide groove 20 penetrates through a separation opening 10 formed in the cabin body 1, and the trapezoidal guide groove 20 is equal to the top of the caulking groove 56 in height.

When the expansion grating plates 44 and the lifting grating plates 43 rise to the stroke top, an inclined shape is formed, and the weight thereon is discharged from the grating treatment chamber 6 through the separation port 10 via the trapezoidal guide groove 20.

In order to facilitate the maintenance personnel to climb to the top of the cabin 1, the cabin body 1 is inspected through an inspection chimney 3 arranged on the upper cover 2, and a gangway ladder 19 is welded on the outer wall of the cabin body 1.

Finally, the invention also provides a method for circularly treating the wastewater of the intelligent car washer by using the system, the method comprises the following steps:

step one, injecting waste water into the upper part of a grid treatment cabin in the cabin body through a water injection flange joint, wherein the injection amount of the waste water is kept to be higher than a lifting pipe and lower than a lifting grid plate;

step two, starting a lifting cylinder to drive a third gear, a supporting rod, a connecting rod and a fixed shaft to ascend, and removing larger suspended matters in the wastewater from the grid treatment cabin; then the lifting cylinder is decompressed, so that the third gear, the supporting rod, the connecting rod and the fixed shaft are reset;

step three, respectively adding a predetermined part of coagulant, magnetic seeds and coagulant aid into the three medicine boxes, pre-starting a motor, and adjusting a fixed column to a position close to the medicine box loaded with the coagulant;

starting a motor to enable the wastewater to stably and circularly flow among the grid treatment cabin, the flocculation cabin, the aeration cabin and the circulation cabin; starting the air pump and the motor, and operating the wastewater treatment;

step five, after circulating for a plurality of periods, sampling water at the upper layer of the circulating cabin, detecting water quality, and if the water meets the standard, discharging the water in the circulating cabin through a pump for further treatment; if the wastewater does not reach the standard, carrying out cyclic treatment on the wastewater for a plurality of periods again according to the water quality parameters.

The above-described embodiments are illustrative, not restrictive, and the technical solutions that can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention are included in the present invention.

Claims (5)

1. The wastewater treatment circulation system for the intelligent car washer comprises a cabin body (1) with a through top and a through bottom, and further comprises a grid treatment cabin (6), a flocculation cabin (7), an aeration cabin (8) and a circulation cabin (9) which are arranged in the cabin body (1); the grid treatment cabin (6), the flocculation cabin (7), the aeration cabin (8) and the circulation cabin (9) are communicated through three groups of pump liquid structures and a group of reflux structures, so that the wastewater is subjected to repeated circulation treatment, and the method is characterized in that:

three medicine boxes (23) are suspended above the flocculation cabin (7), an upper cover (2) is detachably arranged on the upper part of the cabin body (1) through bolts, and the upper edges of the three medicine boxes (23) are connected with the lower surface of the upper cover (2); the bottoms of the three medicine boxes (23) are provided with medicine feeding holes, a movable bottom plate (38) is arranged between the medicine boxes (23) and the top of the flocculation cabin (7), and the movable bottom plate (38) is attached to the bottom of the medicine boxes (23); the movable bottom plate (38) is matched with the medicine feeding mechanism;

the bottom of the flocculation chamber (7) is also provided with a dissolution reaction component which is matched with the drug administration mechanism so as to combine the drug which is accelerated to be put into the flocculation chamber (7) with the wastewater when the drug is put into the flocculation chamber (7);

a suspension bracket (21) is arranged above the flocculation cabin (7), the suspension bracket (21) is connected below the upper cover (2) through a hanging beam (22), and a plurality of belt wheels (28) are distributed below the suspension bracket (21);

the drug administration mechanism comprises a driving belt (26) connected with a plurality of belt wheels (28), the belt wheels (28) are rotationally connected with a suspension bracket (21), a fixed column (27) is connected to one surface of the driving belt (26) facing the drug box (23), and the fixed column (27) is matched with a track (39) arranged on a movable bottom plate (38);

the drug administration mechanism further comprises a motor (25) arranged on the suspension (21) and a main shaft (29) connected with the output end of the motor (25), wherein the main shaft (29) is connected with one belt wheel (28);

the main shaft (29) passes through the suspension (21) and is in rotating fit with the suspension (21);

the automatic medicine dispensing device is characterized in that at least two hanging rods are connected to the outer side wall of the medicine box (23), a guide column (40) is connected to the hanging rods, the guide column (40) is perpendicular to the medicine dispensing pore space, a lifting lug (42) is connected to the upper surface of the movable bottom plate (38), the lifting lug (42) is in sliding fit with the guide column (40), a first spring (41) is sleeved on the guide column (40), and the first spring (41) is elastically connected with the lifting lug (42) and the hanging rods;

the dissolution reaction assembly comprises a stirring shaft (32) horizontally and rotatably arranged at the center of the bottom of the flocculation chamber (7), and the stirring shaft (32) is connected with the lower end of the main shaft (29) through a bevel gear set; a plurality of groups of straight blades (33) are circumferentially arranged on the stirring shaft (32);

the bevel gear set comprises a first bevel gear (30) connected to the lower end of the main shaft (29) and a second bevel gear (31) connected to the stirring shaft (32), and the two bevel gears are meshed with each other;

a lifting type grid structure is arranged in the grid treatment cabin (6) and is used for removing larger suspended matters in the wastewater from the grid treatment cabin (6) in a lifting and dumping mode; the lifting type grid structure comprises a lifting cylinder (52) vertically arranged below the inner part of the grid treatment cabin (6), a supporting rod (51) with the lower end connected with the upper end of the lifting cylinder (52), a fixed shaft (49) rotationally sleeved with the upper end of the supporting rod (51), and a lifting grid plate (43) with one side edge connected with the fixed shaft (49);

two ends of the fixed shaft (49) are respectively provided with an embedded wheel (50) in a rotating way, embedded grooves (56) are symmetrically formed in two sides of the inner wall of the grille treatment cabin (6), and the embedded wheels (50) are embedded in the embedded grooves (56) in a rolling way; a telescopic grating plate (44) is embedded on the lifting grating plate (43) in an overlapping sliding manner; the lower part of the telescopic grating plate (44) is connected with a connecting column (46), and the connecting column (46) is in sliding insertion with a column sleeve (48) connected to the lower part of the lifting grating plate (43); a second spring (47) is sleeved outside the connecting column (46), and the second spring (47) is elastically connected with the column sleeve (48) and the connecting column (46);

a third gear (53) is rotatably arranged at the joint of the lower end of the supporting rod (51) and the upper end of the lifting cylinder (52), and the third gear (53) is connected with the lifting grating plate (43) through a connecting rod (54); one end of the connecting rod (54) is rotationally connected with the lifting grating plate (43) through a rotary pin, and the other end of the connecting rod is rotationally connected with an eccentric part on one side of the third gear (53); and a toothed plate (55) is connected to the inner wall of the grid treatment cabin (6), a roller (45) is rotatably arranged at the edge of one side of the telescopic grating plate (44) far away from the fixed shaft (49), and the roller (45) is in rolling fit with the inner wall of the grid treatment cabin (6).

2. A wastewater treatment circulation system for an intelligent car washer according to claim 1, characterized in that the dissolution reaction assembly further comprises side shafts (36) symmetrically arranged at two sides below the stirring shaft (32), a plurality of groups of torsion blades (37) are circumferentially arranged on the side shafts (36), a second gear (35) is connected to the side shafts (36), and the second gear (35) is meshed with a first gear (34) connected to the stirring shaft (32).

3. A wastewater treatment circulation system for an intelligent car washer according to claim 1, characterized in that the pump liquid structure comprises an impeller pump (12) arranged on the outer walls of a flocculation tank (7), an aeration tank (8) and a circulation tank (9), and a water injection flange joint is arranged on the upper part of the grid treatment tank (6); the water injection flange joint penetrates through the cabin body (1) and protrudes out of the cabin body (1);

the liquid pumping structure further comprises a lifting pipe (14), wherein the lifting pipe (14) is divided into two sections, namely an upper lifting pipe and a lower lifting pipe; the lower lifting pipe is connected with the water inlet of the impeller pump (12), and the upper lifting pipe is connected with the water outlet of the impeller pump (12);

impeller shafts of impeller pumps (12) in the three-group liquid pumping structure are coaxially connected through a connecting shaft (13), and one impeller shaft is connected with the output end of a motor (11);

the reflux structure comprises a reflux pump (15) arranged on the outer wall of the circulation cabin (9), the reflux pump (15) is communicated with the middle position of the circulation cabin (9) and the bottom of the grid treatment cabin (6) through a reflux pipe (16), and an impeller shaft of the reflux pump (15) is synchronously driven with the connecting shaft (13) through a belt (17).

4. The wastewater treatment circulation system for the intelligent car washer according to claim 1, characterized in that an air distribution disc (59) is arranged at the bottom of the aeration cabin (8), a filter frame (57) is also arranged in the aeration cabin (8), and the filter frame (57) is arranged above the air distribution disc (59); the air distribution disc (59) is used for forcibly transferring oxygen in the air from the bottom of the aeration cabin (8) to the separated liquid wastewater so as to increase the dissolved oxygen amount of the wastewater and oxidize and decompose organic matters in the wastewater.

5. A method for recycling waste water from intelligent car washes using a system as claimed in any of claims 1-4 comprising the steps of:

step one, injecting waste water into the upper part of a grid treatment cabin in the cabin body through a water injection flange joint, wherein the injection amount of the waste water is kept to be higher than a lifting pipe and lower than a lifting grid plate;

step two, starting a lifting cylinder to drive a third gear, a supporting rod, a connecting rod and a fixed shaft to ascend, and removing larger suspended matters in the wastewater from the grid treatment cabin; then the lifting cylinder is decompressed, so that the third gear, the supporting rod, the connecting rod and the fixed shaft are reset;

step three, respectively adding a predetermined part of coagulant, magnetic seeds and coagulant aid into the three medicine boxes, pre-starting a motor, and adjusting a fixed column to a position close to the medicine box loaded with the coagulant;

starting a motor to enable the wastewater to stably and circularly flow among the grid treatment cabin, the flocculation cabin, the aeration cabin and the circulation cabin; starting the air pump and the motor, and operating the wastewater treatment;

and fifthly, after circulating for a plurality of periods, sampling water on the upper layer of the circulating cabin and detecting water quality.