CN210825875U

CN210825875U - Car washing wastewater recycling device

Info

Publication number: CN210825875U
Application number: CN201921771466.6U
Authority: CN
Inventors: 刘芬芬; 汪军; 徐耀锦; 陈浙墩
Original assignee: Changzhou Shuimuqing Environmental Protection Technology Co ltd
Current assignee: Changzhou Shuimuqing Environmental Protection Technology Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-06-23
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a car washing wastewater recycling device, which belongs to the field of sewage treatment and aims to provide a car washing wastewater recycling device with small occupied area, simple and convenient installation and convenient maintenance, and the key point of the technical scheme is as follows; the device body is internally provided with a scum removing area, a floating oil removing area, an anoxic area, an aerobic area, a sludge area, an adsorption area and a clear water area which are communicated with each other in sequence along the water flow direction, and a stainless steel cover plate is covered above each corresponding area of the device body. The utility model is suitable for a washing wastewater treatment retrieval and utilization.

Description

Car washing wastewater recycling device

Technical Field

The utility model relates to a water treatment facilities, in particular to carwash waste water retrieval and utilization device.

Background

Along with the development of society and the improvement of resident's living standard, the car washing industry obtains quick development of car ownership volume, and the consumption of water resource is bigger and bigger, and the waste water of many carwashes mostly directly discharges into municipal drainage pipe network, has increased urban pipe network waste water treatment's pressure. At present, the most vehicles are washed by tap water, a large amount of tap water is consumed, the price of the tap water is high, and the water cost of a car washing station is high. The recycling treatment of the car washing wastewater can relieve the urban water supply pressure, reduce the pressure of wastewater treatment, bring long-term economic benefits to a car washing park and make certain due contributions to environmental protection and energy conservation.

At present, the traditional civil engineering adopts sand removal and oil removal processes, so that the occupied area is large, the water treatment effect is not ideal, and the water cannot be recycled, thereby causing serious water resource waste.

Based on practical experience and professional knowledge which are abundant for years in the engineering application of the products, the designer actively carries out research and innovation by matching with the application of the theory, so as to create a device for recycling the car washing wastewater, and the device has higher practicability.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a carwash waste water retrieval and utilization device has area is little, simple installation and dimension guarantor convenient advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a car washing wastewater recycling device comprises a device body, wherein one end of the device body is communicated with a water inlet pipeline, and the other end of the device body is communicated with a water outlet pipeline;

the device body is internally provided with a scum removing area, a floating oil removing area, an anoxic area, an aerobic area, a sludge area, an adsorption area and a clear water area which are communicated with each other in sequence along the water flow direction, and a stainless steel cover plate is covered above each corresponding area of the device body.

Further, the device body has protruding edge along the inside perpendicular extension of opening, stainless steel apron bottom lid establish with protruding edge is last, the stainless steel bottom extends there is location portion, location portion with protruding edge between be equipped with first sealing member, first sealing member is the sealing washer structure, location portion outside ring is equipped with first annular, the inboard an organic whole of first sealing member be connected with the first fillet of first annular adaptation.

Further, protruding edge upwards extends has the direction inclined plane, the stainless steel apron periphery be equipped with direction inclined plane complex tangent plane, the tangent plane with be equipped with the second sealing member between the direction inclined plane, the second sealing member is the sealing washer structure, the tangent plane is fitted with a contraceptive ring and is equipped with an at least second annular, the inboard body coupling of second sealing member has the second fillet with second annular adaptation.

Furthermore, the dross removing area is provided with a dross removing basket, a multi-stage filter element is arranged in the dross removing basket, the dross removing basket is hung on the inner wall of the device body, and the dross removing basket is provided with a hoisting ring.

Further, the floating oil removing area is fixedly connected with a short plate, and the short plate is perpendicular to the bottom wall of the device body.

Furthermore, the aerobic zone is provided with a first filtering structure, the first filtering structure comprises a first frame and a flat ceramic membrane, two ends of the flat ceramic membrane are fixedly connected with the first frame, and the first frame is suspended on the inner wall of the aerobic zone or fixedly connected with the inner wall of the aerobic zone.

Further, multilayer second filtration in the adsorption zone, second filtration second frame and filter layer, the filter layer includes activated carbon layer, quartz sand layer and gravel layer, the filter layer is laid down from last to in proper order in the second frame.

Further, the second frame is a cylindrical meshed stainless steel structure.

Furthermore, clear water passing through the first filtering structure in the aerobic zone is pumped and conveyed to the adsorption zone by a liquid pump in a negative pressure pumping mode.

Furthermore, the stainless steel filter screen is arranged on the inner wall of the device body and positioned on the periphery of the water outlet pipeline.

The utility model discloses following beneficial effect has:

the device body is a stainless steel structure type device, can be directly installed on site, occupies small area, is convenient for maintenance and replacement of consumables in later period due to the arrangement of a stainless steel cover plate, can effectively remove floating oil, silt, detergent, chromaticity, turbidity and the like in the car washing wastewater by adopting a deslagging-oil separation-anaerobic-membrane method biological aerobic zone-filtering process, and effectively ensures the requirements of the recycled car washing water of the water quality standard of the domestic miscellaneous water of the people's republic of China (GJ 25.1-89).

Drawings

FIG. 1 is a schematic structural view of the entire device for recycling car-washing wastewater in this embodiment;

FIG. 2 is a schematic view illustrating the connection relationship between the stainless steel cover plate and the device body in the present embodiment;

fig. 3 is a schematic structural view at a in fig. 2 for embodying the first seal and the second seal.

In the figure, 1, an apparatus body; 11. a water inlet pipe; 12. a water outlet pipeline; 13. a dross removal zone; 131. deslagging and lifting the basket; 1311. a filter element; 1312. hoisting a ring; 14. a floating oil removal zone; 141. a short plate; 142. an oil discharge valve; 15. an anoxic zone; 16. an aerobic zone; 161. a first frame; 162. a flat ceramic membrane; 17. a sludge zone; 171. a blowoff valve; 18. an adsorption zone; 181. a second frame; 182. a filter layer; 1821. an activated carbon layer; 1822. a quartz sand layer; 1823. a gravel layer; 19. a clear water zone; 2. a stainless steel cover plate; 21. a positioning part; 211. a first ring groove; 22. cutting into noodles; 221. a second ring groove; 3. a liquid pump; 4. a stainless steel filter screen; 5. a convex edge; 6. a first seal member; 61. a first fillet; 7. a guide slope; 8. a second seal member; 81. a second fillet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

A car washing wastewater recycling device is shown in figure 1 and comprises a device body 1, wherein one end of the device body 1 is communicated with a water inlet pipeline 11, and the other end of the device body 1 is communicated with a water outlet pipeline 12;

a scum removal area 13, a floating oil removal area 14, an anoxic area 15, an aerobic area 16, a sludge area 17, an adsorption area 18 and a clear water area 19 which are communicated with each other are sequentially arranged in the device body 1 along the water flow direction, and a stainless steel cover plate 2 is covered above each corresponding area of the device body 1.

The device body 1 is a stainless steel structure type device, can be directly installed on site, occupies small area, is convenient for maintenance and replacement of consumables in later period due to the arrangement of the stainless steel cover plate 2, can effectively remove floating oil, silt, detergent, chromaticity, turbidity and the like in the car washing wastewater by adopting a deslagging-oil separation-anaerobic-membrane method biological aerobic zone-filtering process, and can effectively ensure the requirements of recycling car washing water of the water quality standard for domestic miscellaneous water of the people's republic of China (GJ25.1-89) for effluent water.

As shown in fig. 2 and 3, the device body 1 has a protruding edge 5 extending vertically inward along the opening, the bottom of the stainless steel cover plate 2 is covered on the protruding edge 5, the bottom of the stainless steel cover plate extends to have a positioning portion 21, a first sealing element 6 is arranged between the positioning portion 21 and the protruding edge 5, the first sealing element 6 is of a sealing ring structure, a first annular groove 211 is annularly arranged on the outer side of the positioning portion 21, and a first insertion strip 61 adapted to the first annular groove 211 is integrally connected to the inner side of the first sealing element 6. Protruding edge 5 is used for bearing the dead weight of stainless steel apron 2, and the leakproofness of device body 1 has been guaranteed to first sealing member 6, avoids the stink of sewage to leak, has optimized the device's service environment.

As shown in fig. 2 and 3, the convex edge 5 extends upward to form a guide slope 7, a tangent plane 22 matched with the guide slope 7 is arranged on the periphery of the stainless steel cover plate 2, a second sealing element 8 is arranged between the tangent plane 22 and the guide slope 7, the second sealing element 8 is of a sealing ring structure, at least one second annular groove 221 is annularly arranged on the tangent plane 22, and a second insertion strip 81 matched with the second annular groove 221 is integrally connected to the inner side of the second sealing element 8. The setting of direction inclined plane 7 and tangent plane 22 is favorable to placing of stainless steel apron 2 to can tentatively fix a position stainless steel apron 2. The setting of second sealing member 8 has further guaranteed the leakproofness of device body 1, avoids the stink of sewage to leak, has optimized the device's service environment.

As shown in fig. 1, the scum removing area 13 is provided with a scum removing basket 131, a multi-stage filter 1311 is arranged in the scum removing basket 131, and the filter 1311 can be sequentially stacked in the scum removing basket 131 and can also be fixed in the scum removing basket 131 by fasteners such as bolts and nuts. The slag removal basket 131 is hung on the inner wall of the device body 1, and the slag removal basket 131 is provided with a hoisting ring 1312, so that the slag removal basket 131 can be lifted and cleaned conveniently in the later period.

As shown in fig. 1, the sewage passes through the scum removing area 13 and then enters the floating oil removing area 14, and a short plate 141 is fixedly connected to the floating oil removing area 14, and the short plate 141 is perpendicular to the bottom wall of the apparatus body 1. Here, the short plate 141 may be rectangular or inverted trapezoidal, the short plate 141 makes the water flow in an ascending state to float the floating oil on the water, the apparatus body 1 is provided with an oil drain valve 142 at the top of the floating oil removing area 14, and the floating oil can be discharged by periodically opening the oil drain valve 142.

As shown in figure 1, the anoxic zone 15 hydrolyzes and acidifies organic matters in the sewage, in order to reduce the content of metabolites in the effluent and stabilize the water quality, the concentrated sludge mixed liquor is respectively sent to the anaerobic tank and the sludge tank through a sludge reflux pump, wherein higher sludge concentration (more than or equal to 10 g/L) can be adopted, the discharge amount of residual sludge can reach the minimum, so that the sludge age is very long, bacteria (such as nitrobacteria) with long generation cycle are ensured to be intercepted and propagated in the device body 1, and the effect of reducing the content of metabolites in the effluent is realized.

As shown in fig. 1, the aerobic zone 16 further degrades organic matters in the sewage, the aerobic zone 16 is provided with a first filtering structure, the first filtering structure comprises a first frame 161 and a flat ceramic membrane 162, two ends of the flat ceramic membrane 162 are fixedly connected with the first frame 161 through fasteners such as bolts and nuts, and the first frame 161 is suspended on the inner wall of the aerobic zone 16 or fixedly connected with the inner wall of the aerobic zone 16. The flat ceramic membrane 162 is used for separating mud and water from the sludge mixed liquid, thereby achieving a good filtering effect. The clear water in the aerobic zone 16 passing through the first filtering structure is pumped by the liquid pump 3 in a negative pressure pumping mode and is conveyed to the adsorption zone 18.

As shown in fig. 1, the apparatus body 1 is provided with a drain valve 171 at the bottom of the sludge region 17, and sludge can be discharged by periodically opening the drain valve 171.

As shown in fig. 1, the adsorption region 18 includes a plurality of layers of the second filter structure, a second frame 181 and a filter layer 182, the filter layer 182 includes an activated carbon layer 1821, a quartz sand layer 1822 and a gravel layer 1823, and the filter layer 182 is sequentially laid in the second frame 181 from top to bottom. Preferably, the second frame 181 is a cylindrical mesh stainless steel structure.

As shown in figure 1, a stainless steel filter screen 4 is arranged on the inner wall of the device body 1 and positioned on the periphery of the water outlet pipeline 12. The stainless steel filter screen 4 finally filters the effluent, and ensures that the effluent meets the requirement of reclaimed water for washing vehicles of the Water quality Standard for miscellaneous Life Water of the people's republic of China (GJ 25.1-89).

The wastewater treatment capacity of the device is designed to be 30 m/d, the retention time of the floating oil removal zone 14 is 5min, the retention time of the anoxic zone 15 is 30min, the design time of the aerobic zone 16 is 240min, the filtration flow rate of the filtration layer 182 of the adsorption zone 18 is 10m/h, the size of the whole device is 2500mm x 1500mm x 1800mm, and the occupied area of the device is reduced by more than 50% compared with that of the traditional civil engineering device. Tests show that the mass concentration of CODcr in water is reduced from 144.45mg/L to 60.96mg/L, the turbidity is reduced from 39.06NTU to 4.61NTU, the removal rates of CODcr and turbidity can respectively reach 57.8% and 88.2%, and the treated water quality reaches the first-level discharge standard of the comprehensive sewage discharge standard.

The specific implementation process comprises the following steps: the sewage for washing the automobile and the domestic sewage are mixed and then enter the sewage for sand settling, and the inorganic sand grains with larger specific gravity in the sewage are removed and then are connected into the automobile washing wastewater recycling device through a ditch or a water pipe:

firstly, wastewater flows into a scum removing area 13, large suspended matter impurities are intercepted by a scum removing basket 131, then the wastewater flows into a floating oil removing area 14 provided with a short plate 141 to form a water flow ascending state, floating oil floats on water, the residual sewage enters an anoxic area 15 to carry out hydrolytic acidification on organic matters, the organic matters are further degraded in an aerobic area 16, a flat ceramic membrane 162 in the aerobic area 16 carries out mud-water separation on sludge mixed liquid, clear water in the membrane pool sludge mixed liquid is extracted by a liquid pump 3 in a negative pressure suction mode and is sent to an adsorption area 18, and the clear water is discharged to be recycled after being adsorbed and filtered by filter materials such as biological activated carbon, quartz sand and gravel.

The whole device has compact equipment, occupies a small area, is simple in operation management and is easy to realize automation. Its consumptive material filter core 1311 is detachable structure, and slagging-off hand-basket 131, dull and stereotyped ceramic membrane 162, first filtration, second filtration and stainless steel filter screen can directly lift out above-mentioned consumptive material through lifting device after opening the stainless steel cover plate 2 at device top, carry out the device and wash reuse again after the outward, all be manual simple and easy operation, no professional requirement, and the popularization rate is high.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A car washing wastewater recycling device comprises a device body (1), wherein one end of the device body (1) is communicated with a water inlet pipeline (11), and the other end of the device body is communicated with a water outlet pipeline (12);

the device is characterized in that a scum removing area (13), a floating oil removing area (14), an anoxic area (15), an aerobic area (16), a sludge area (17), an adsorption area (18) and a clear water area (19) which are communicated with each other are sequentially arranged in the device body (1) along the water flow direction, and a stainless steel cover plate (2) is covered above each corresponding area of the device body (1).

2. The recycling device for car washing wastewater according to claim 1, wherein the scum removing area (13) is provided with a slag removing basket (131), a multi-stage filter element (1311) is arranged in the slag removing basket (131), the slag removing basket (131) is hung on the inner wall of the device body (1), and the slag removing basket (131) is provided with a hoisting ring (1312).

3. The recycling device of car washing wastewater according to claim 1, characterized in that said floating oil removing region (14) is fixedly connected with a short plate (141), said short plate (141) is perpendicular to the bottom wall of said device body (1).

4. The recycling device for car washing wastewater according to claim 1, wherein the aerobic zone (16) is provided with a first filtering structure, the first filtering structure comprises a first frame (161) and a flat ceramic membrane (162), both ends of the flat ceramic membrane (162) are fixedly connected with the first frame (161), and the first frame (161) is suspended from the inner wall of the aerobic zone (16) or fixedly connected with the inner wall of the aerobic zone (16).

5. The recycling device for car washing wastewater of claim 1, wherein said adsorption zone (18) contains a plurality of layers of second filtering structures, said second filtering structures comprise a second frame (181) and a filtering layer (182), said filtering layer (182) comprises an activated carbon layer (1821), a quartz sand layer (1822) and a gravel layer (1823), and said filtering layer (182) is sequentially laid in said second frame (181) from top to bottom.

6. The recycling apparatus of car washing wastewater as claimed in claim 5, wherein said second frame (181) is made of a cylindrical net-like stainless steel structure.

7. The recycling device for car washing wastewater according to claim 4, characterized in that the clear water in the aerobic zone (16) passing through the first filtering structure is pumped by the liquid pump (3) by negative pressure suction and conveyed to the adsorption zone (18).

8. The recycling device for car washing wastewater according to claim 1, wherein the stainless steel filter screen (4) is arranged on the inner wall of the device body (1) at the periphery of the water outlet pipeline (12).