CN209178901U - A sewage recycling device for washing and sweeping vehicles - Google Patents

Abstract

The utility model relates to a sewage recycling device for washing and sweeping vehicles, which comprises a clean water tank, a garbage tank, a filter box, a first-level solid-liquid separation mechanism and a second-level solid-liquid separation mechanism. On the vehicle chassis of the sweeper, the waste bin is divided into a sewage suction bin and a treatment bin by a first partition. The mechanism includes an upper filter screen and a lower filter screen. The upper filter screen, the lower filter screen and the inner side wall of the rear door are enclosed to form a filter screen bin. The filter screen bin is connected to the sewage suction bin through the upper filter screen. In the treatment bin, the secondary solid-liquid separation mechanism is provided with a circuitous water channel structure, which is connected with the filter screen bin through the lower filter screen, and is connected with the lower part of the filter box through the water outlet pipe. The filter box is detachably installed with multiple filter elements. They are respectively suspended on the upper part of the filter box, a plurality of filter elements are connected with the clean water tank, and the clean water tank is connected with the working nozzle of the cleaning vehicle.

Description

A sewage recycling device for washing and sweeping vehicles

technical field

The utility model relates to the technical field of sanitation equipment, in particular to a sewage recycling device for washing and sweeping vehicles.

Background technique

The sewage recycling technology of washing and sweeping vehicles realizes the recycling of sewage through the collection, filtration and purification of road sewage, thus saving the trouble of repeatedly going to the water station to fill the clean water and discharging sewage at the garbage station, which greatly improves the operation efficiency of washing and sweeping vehicles. At the same time, it can also reduce the sewage discharge in the cleaning and sweeping operation, improve the reuse rate of water, and achieve the purpose of saving water. Therefore, sewage recycling technology has always been an important direction for the research and development of vehicle washing and sweeping technology, and major domestic manufacturers are actively carrying out related technology research.

Sewage filtration technology is the key to the realization of sewage recycling by washing and sweeping vehicles, and it has always been a hot spot and difficulty in technology research and development in related fields. Constrained by filter material technology, although many research results have been achieved in sewage filtration technology over the years, breakthrough progress has not yet been achieved. And the actual application feedback that the filtration performance decreases after a period of use, the sustainability is poor (that is, the effect is good at the beginning, but the filtration flow and accuracy are greatly reduced after a period of use), and the replacement of filter materials is inconvenient and expensive.

In the field of sewage filtration, such as sewage treatment plants, leachate treatment devices, etc., it can continuously produce good filtration effects for a long time. The reason for the comparison is that the filtration conditions of the washing and sweeping vehicles are different. Generally, the vehicles are filtered while working, and the time required to complete the filtration is short (the vibration is severe and the sewage lacks the "settling" process), the filtration space is narrow and limited, and the filtration terminals (filter rods, etc.) are long-term. Soak in turbid sewage etc.

In addition, the existing sewage circulation device for washing and sweeping vehicles uses a sewage pump to suck the filtered clean water into the clean water tank. In order to avoid the suction effect of the suction pump being affected by the air entering the suction pump, the filter terminal needs to be completely immersed in ( In this way, the amount of filtered sewage that can be accommodated is also limited (the time allowed for filtration during continuous operation is also shortened). Therefore, the "built-in" filtration device has the defects of high initial filtration point, less sewage available for filtration, and short filtration time requirement (large filtration flow requirement).

SUMMARY OF THE INVENTION

The purpose of the utility model is to aim at the deficiencies of the prior art, and to provide a sewage recycling device for washing and sweeping vehicles with reasonable design, simple structure, low cost and good solid-liquid separation effect.

To achieve the above object, the utility model adopts the following technical solutions:

A sewage recycling device for washing and sweeping vehicles, which includes a clean water tank, a garbage can, a filter box, a first-level solid-liquid separation mechanism and a second-level solid-liquid separation mechanism, and the clean water tank, the garbage box and the filter box are respectively detachable and installed in the washing machine. On the vehicle chassis of the sweeper, the waste bin is divided into a sewage suction bin and a processing bin distributed up and down by a first partition, and the first-level solid-liquid separation mechanism is detachably installed on the inner side of the rear door provided at the rear end of the waste bin. The first-level solid-liquid separation mechanism includes an upper filter screen and a lower filter screen. The upper filter screen, the lower filter screen and the inner side wall of the rear door are enclosed to form a filter screen bin. The filter screen bin is communicated with the sewage suction bin through the upper filter screen. The secondary solid-liquid separation mechanism is detachably installed in the treatment bin. The secondary solid-liquid separation mechanism has a circuitous water channel structure for sedimentation, separation and filtration of sewage. The water pipe is communicated with the inlet of the lower part of the filter box, a plurality of filter elements are detachably installed in the filter box, and the plurality of filter elements are respectively suspended on the upper part of the filter box. The working nozzle of the sweeper is connected.

Preferably, the circuitous water channel structure includes more than three second baffles arranged on the bottom plate of the treatment silo, wherein two second baffles are arranged at intervals to form a water inlet channel, and the water inlet channel is communicated with the filter screen silo through the lower filter screen, and the remaining The spacing between the two partitions is distributed on the same outer side or two outer sides of the water inlet to form a water outlet, the outlet of the water outlet is connected with the inlet of the lower part of the filter box, and the water outlet is connected with the water inlet to form a circuitous water channel.

Preferably, the circuitous water channel structure includes four second partition plates, and the remaining two second partition plates are symmetrically distributed at two outer sides of the water inlet channel to form two water outlet channels.

Preferably, the second partition is provided with a secondary filter screen corresponding to the turn of the circuitous water channel, and the secondary filter is provided on the upper part of the second partition. This design enables the liquid after the first-stage solid-liquid separation to undergo multiple sedimentation separations under the action of the installation heights of multiple second-stage filter screens.

Preferably, the secondary filter screen is arranged on the upper or lower part of the second partition.

Preferably, the first baffle is inclined at a high front and a low rear, and the upper edge of the second baffle is sealedly connected to the lower surface of the first baffle.

Preferably, the filter box includes a box body, one side of the box body is provided with a box door that can be opened and closed, one side of the bottom of the box body is provided with an inlet, the other side of the bottom of the box body is provided with a sewage outlet, and the sewage outlet is provided with a sewage outlet The plurality of filter elements are respectively communicated with the recovery main pipe through the recovery branch pipes, and at least one recovery branch pipe is provided with a water return valve.

Preferably, the inner wall of the front end of the waste bin is provided with a cleaning mechanism corresponding to the sewage suction bin and the processing bin respectively, the cleaning mechanism includes a cleaning pipe connected with the clean water tank, and the cleaning pipe is connected with a plurality of nozzles distributed at intervals.

The utility model adopts the above technical scheme, and the sewage treatment process is as follows: the clean water tank supplies water to the working nozzles of the washing and sweeping vehicles, the working nozzles spray water to wash the road surface, and the sewage on the road is sucked into the sewage suction bin by the suction cylinders of the washing and sweeping vehicles. The sewage in the sewage suction bin enters the filter bin through the upper filter screen, and the upper filter screen conducts first-level solid-liquid separation, and the large pieces of garbage are filtered and intercepted in the sewage suction bin, and the liquid after the first-stage solid-liquid separation enters the filter screen. The mesh silo enters the secondary solid-liquid separation mechanism in the treatment silo through the lower filter screen, and flows in the circuitous waterway of the circuitous waterway structure for secondary solid-liquid separation, and is filtered by the secondary filter screen provided in the circuitous waterway structure. , intercept and filter the denser garbage in the water channel one by one, the liquid after secondary solid-liquid separation flows from the outlet of the circuitous water channel to the filter box through the outlet pipe, and collects and submerges multiple filter elements in the filter box. The filter element undergoes three-stage solid-liquid separation, and the finer particles in the water are filtered and settled in the lower part of the filter box. The liquid after the three-stage solid-liquid separation enters the inside of the filter element, and is recovered into the clean water tank through the outlet at the top of the filter element and the recovery main pipe.

The inner wall of the front end of the garbage box is respectively provided with a cleaning mechanism corresponding to the sewage suction bin and the processing bin. The cleaning mechanism includes a cleaning pipe connected with the clean water tank, and the cleaning pipe is connected with a plurality of nozzles distributed at intervals; When cleaning, first open the back door of the garbage bin, then open multiple nozzles to rinse the sewage suction bin and the treatment bin respectively, and the sewage generated by the flushing is discharged from the back door of the garbage bin; Rinse the external water pipe or replace the first-level solid-liquid separation mechanism; when impurities block the filter element in the filter box, use the air blowing device to purge the filter element or replace the filter element.

By adopting the above technical solutions, the utility model can prolong the continuous operation time of the washing and sweeping vehicle filling up with clean water at one time, improve the operation efficiency, and save water resources; the multi-stage filtration and sedimentation of sewage in the garbage box not only solves the problem of low filtration efficiency, but also saves water resources. Moreover, the impurities that finally enter the filter element of the filter box are very small, and the filter element is less likely to be blocked, so as to solve the problems of inconvenient replacement of the filter element, high replacement cost, and easy blockage of the filter element; The internal space of the silo and the treatment silo is larger, the initial filtration point of the first-level solid-liquid separation mechanism at the rear end of the sewage suction silo can be lower, and the proportion of sewage in the treatment silo that can be filtered and settled by a circuitous flow is large, and multiple filter elements are detachable. Suspending the top of the filter box not only facilitates maintenance and replacement, and saves replacement costs, but also enables the liquid after the secondary solid-liquid separation to filter and settle the finer particles in the water under the action of the installation height of the filter box at the lower part of the filter box, thereby achieve sedimentation separation. The utility model has the advantages of reasonable design, simple structure, low cost, multi-stage filtration and multi-stage sedimentation functions, good solid-liquid separation effect, excellent anti-clogging performance, and can realize the recycling and reuse of sewage.

Description of drawings

Now in conjunction with accompanying drawing, the utility model is further elaborated:

Fig. 1 is the structural representation of the utility model of the sewage recycling device for washing and sweeping vehicles;

Fig. 2 is A-A direction schematic diagram in Fig. 1;

Fig. 3 is the schematic diagram of the direction B-B in Fig. 2;

4 is one of the schematic diagrams of the installation of the secondary filter screen of the present invention on the second partition;

5 is the second schematic diagram of the installation of the secondary filter screen of the present invention on the second partition;

FIG. 6 is a schematic structural diagram of the filter box of the present invention.

Detailed ways

As shown in one of Figures 1-6, the sewage recycling device for washing and sweeping vehicles of the present invention includes a clean water tank 1, a garbage tank 2, a filter box 7, a first-level solid-liquid separation mechanism and a second-level solid-liquid separation mechanism. The clean water tank 1, the garbage tank 2 and the filter tank 7 are respectively detachably installed on the vehicle chassis of the sweeper 9, and the garbage tank 2 is divided into a sewage suction bin 21 and a processing bin which are distributed up and down by the first partition 4. 22. The first-level solid-liquid separation mechanism is detachably installed on the inner side of the rear door 3 provided at the rear end of the waste bin 2. The first-level solid-liquid separation mechanism includes an upper filter screen 61 and a lower filter screen 62. The upper filter screen 61 and the lower filter screen The mesh 62 and the inner side wall of the rear door 3 are enclosed to form a screen bin 6. The screen bin 6 is communicated with the sewage suction bin 21 through the upper screen 61. The secondary solid-liquid separation mechanism is detachably installed in the processing bin 22. The solid-liquid separation mechanism has a circuitous water channel structure 5 for sedimentation separation and filtration of sewage, the circuitous water channel structure 5 is communicated with the filter screen bin 6 through the lower screen 62, and the outlet 55 of the circuitous water channel structure 5 passes through the water outlet pipe (not shown in the figure). shown) is communicated with the inlet 72 at the lower part of the filter box 7, a plurality of filter elements 71 are detachably installed in the filter box 7, the plurality of filter elements 71 are respectively suspended on the upper part of the filter box 7, and the outlets of the plurality of filter elements 71 pass through the recovery manifold It is communicated with the clean water tank 1 , and the clean water tank 1 is communicated with the working nozzle of the washing and sweeping vehicle 9 .

Preferably, all detachable installations are conventional means in the art, for example, using bolt and nut assemblies for installation.

Preferably, the circuitous water channel structure 5 includes more than three second partitions 51 disposed on the bottom plate of the treatment bin 22 , wherein the two second partitions 51 are spaced apart to form a water inlet 53 , and the water inlet 53 passes through the lower filter screen 62 and is connected to the water inlet 53 . The filter screen bin 6 is connected, and the remaining second partitions 51 are distributed at the same outer side or two outer sides of the water inlet channel 53 to form a water outlet channel 54. The outlet of the water outlet channel 54 is communicated with the inlet 72 at the lower part of the filter box 7, and the water outlet channel 54 is connected with the inlet channel 54. The water channels 53 communicate with each other to form a circuitous water channel.

Preferably, the second partition plate 51 is provided with a secondary filter screen 52 corresponding to the turn of the circuitous water channel, and the secondary filter screen 52 is provided on the upper part of the second partition plate 51 . This design enables the liquid after the first-stage solid-liquid separation to undergo multiple sedimentation separations under the action of the installation heights of the multiple second-stage filter screens 52 .

Preferably, the secondary filter screen 52 is provided on the upper or lower part of the second partition plate 51 .

Preferably, the mesh diameter of the secondary filter screen 52 is smaller than the mesh diameter of the upper filter screen 61 .

Preferably, the first partition plate 4 is inclined at a high front and a low rear, and the upper edge of the second partition plate 51 is sealedly connected to the lower surface of the first partition plate 4 .

Preferably, the inner wall of the front end of the garbage box 2 is provided with a cleaning mechanism 8 corresponding to the sewage suction bin 21 and the processing bin 22 respectively. A plurality of nozzles 82 spaced apart.

As shown in FIG. 3 , as an embodiment, the circuitous water channel structure 5 includes four second partitions 51 , and the remaining two second partitions 51 are symmetrically distributed on the two outer sides of the water inlet channel 53 to form two outlet plates 51 . Waterway 54.

As shown in FIG. 6 , the filter box 7 includes a box body 73 . One side of the box body 73 is provided with a box door 78 that can be opened and closed. There is a sewage outlet 75, a sewage valve 74 is arranged at the sewage outlet 75, the plurality of filter elements 71 are respectively communicated with the recovery main pipe through a recovery branch pipe, and at least one recovery branch pipe is provided with a return valve.

As an embodiment, the filter box 7 includes three filter elements 71 , a first water outlet valve 771 and a second water outlet valve 772 , and the three filter elements 71 are respectively communicated with the water outlet main pipe through three water outlet branch pipes 761 , 762 and 763 , wherein The two water outlet branch pipes 762 and 763 are first connected in parallel to the parallel pipe 76, and then connected to the water outlet main pipe 76 in parallel with the other water outlet branch pipe 761. The first water outlet valve 771 is provided on the parallel pipe 76, and the second water outlet valve 772 is provided. On the outlet branch pipe 761.

The utility model adopts the above technical scheme, and the sewage treatment process is as follows: the clean water tank 1 supplies water to the working nozzles of the cleaning vehicle 9, the working nozzles spray water to wash the road surface, and the sewage on the road is sucked by the suction cylinder of the cleaning vehicle 9. In the sewage bin 21, the sewage in the sewage suction bin 21 enters the filter bin 6 through the upper filter screen 61, and the upper filter screen 61 performs first-level solid-liquid separation, and the large pieces of garbage are filtered and intercepted in the sewage suction bin 21. The liquid after the secondary solid-liquid separation enters the filter screen bin 6, enters the secondary solid-liquid separation mechanism in the treatment bin 22 through the lower screen 62, and flows in a roundabout way in the roundabout water channel of the roundabout water channel structure 5 for secondary solid-liquid separation, and Under the filtration of the secondary filter screen 52 provided in the circuitous water channel structure 5, the garbage with higher density is intercepted and filtered in the water channel one by one, and the liquid after the secondary solid-liquid separation flows from the outlet of the circuitous channel to the filter box through the water outlet pipe 7, and submerge a plurality of filter elements 71 in the filter box 7, and the plurality of filter elements 71 are subjected to three-stage solid-liquid separation, and the finer particles in the water are filtered and settled in the lower part of the filter box 7, and the liquid after the three-stage solid-liquid separation It enters the interior of the filter element 71, and is recovered into the clean water tank 1 through the outlet at the top of the filter element 71 and the recovery manifold.

The inner wall of the front end of the garbage box 2 is provided with a cleaning mechanism 8 corresponding to the sewage suction bin 21 and the processing bin 22 respectively. Multiple nozzles; when cleaning the garbage bin 2, first open the rear door 3 of the garbage bin 2, and then open multiple nozzles to flush the sewage suction bin 21 and the treatment bin 22 respectively, and the sewage generated by the flushing is discharged from the rear door 3 of the garbage bin 2. When impurities remain in the filter screen bin 6 inside the rear door 3, directly connect the water pipe to rinse or replace the first-level solid-liquid separation mechanism; when the impurities block the filter element 71 in the filter box 7, use the air blowing device to clean the filter element 71 Purge or replace the filter element 71.

By adopting the above technical solutions, the utility model can prolong the continuous operation time of the cleaning vehicle 9 being filled with clean water at one time, improve the operation efficiency, and save water resources; the sewage is filtered and settled in multiple stages in the garbage bin 2, which not only solves the problem of low filtration efficiency In addition, the impurities that finally enter the filter element 71 of the filter box 7 are extremely small, and the filter element 71 is more difficult to block, thereby solving the problems of inconvenient replacement of the filter element 71, high replacement cost, and easy blockage of the filter element 71; The outside of the waste bin 2 can make the internal space of the sewage suction bin 21 and the processing bin 22 larger, the initial filtration point of the first-level solid-liquid separation mechanism at the rear end of the sewage suction bin 21 can be lower, and the processing bin 22 can be used for roundabout flow filtration. The proportion of sewage that settles is large, and the detachable suspension of the multiple filter elements 71 on the top of the filter box 7 is not only convenient for maintenance and replacement, saving replacement costs, but also allows the liquid after secondary solid-liquid separation to be installed under the action of the filter element 71. , the finer particles in the water are filtered and settled in the lower part of the filter box 7, so as to achieve sedimentation and separation. The utility model has the advantages of reasonable design, simple structure, low cost, multi-stage filtration and multi-stage sedimentation functions, good solid-liquid separation effect, excellent anti-clogging performance, and can realize the recycling and reuse of sewage.

The above description should not limit the protection scope of the present invention in any way.

Claims (7)

1. a kind of sweeper sewage circulation unit, it is characterised in that: it includes filtered water tank, dustbin, Rose Box, level-one solid-liquid point It disembarks structure and second level solid-liquid separation device, the filtered water tank, dustbin and Rose Box are removably mounted at the vehicle of sweeper respectively On chassis, the soil pick-up storehouse being distributed up and down is separated into the dustbin by first partition and handles storehouse, the level-one solid-liquid Separating mechanism is removably mounted on the inside of the back door that rubbish box back is equipped with, and level-one solid-liquid separation device includes upper filter screen and lower filter Net, upper filter screen, lower filter screen and back door inner sidewall are enclosed strainer storehouse, and strainer storehouse is connected to by upper filter screen with soil pick-up storehouse, described Second level solid-liquid separation device is removably mounted in processing storehouse, and second level solid-liquid separation device has dirty for sedimentation separation and filtering The detour channel structure of water, the detour channel structure are connected to by lower filter screen with strainer storehouse, and pass through outlet pipe and Rose Box The inlet communication of lower part is detachably equipped with multiple filter cores in the Rose Box, and multiple filter cores are suspended at filtering upper box part respectively, The outlet of multiple filter cores is connected to by recycling general pipeline with filtered water tank, and filtered water tank is connected to the main jet of sweeper.

2. a kind of sweeper sewage circulation unit according to claim 1, it is characterised in that: the detour channel structure packet Three or more second partitions for being set to processing orlop plate are included, two of them second partition spacing is arranged to form inlet channel, inlet channel It is connected to by lower filter screen with strainer storehouse, remaining second partition spacing is distributed in the same outside of inlet channel or two outsides are formed Water outlet, the outlet of water outlet and the inlet communication of filtering lower box part, water outlet are connected to form detour water channel with inlet channel.

3. a kind of sweeper sewage circulation unit according to claim 2, it is characterised in that: the detour channel structure packet Four second partitions are included, two outsides that other two second partition spacing is symmetrically distributed in inlet channel form two water outlets.

4. a kind of sweeper sewage circulation unit according to claim 2, it is characterised in that: the second partition corresponds to circuitous Return water road turning is equipped with secondary filter, and secondary filter is set to the top or lower part of second partition.

5. a kind of sweeper sewage circulation unit according to claim 2, it is characterised in that: the first partition is in preceding height Low dip is arranged afterwards, and the top edge and first partition lower surface of second partition are tightly connected.

6. a kind of sweeper sewage circulation unit according to claim 1, it is characterised in that: the Rose Box includes case Body, cabinet side are equipped with the chamber door of sealing opening and closing, and bottom of box side is equipped with import, and the bottom of box other side is equipped with sewage draining exit, Blowdown valve is equipped at sewage draining exit, the multiple filter core passes through recycling branch pipe respectively and is connected to recycling general pipeline, at least one recycling branch Pipe is equipped with back-water valve (BWV).

7. a kind of sweeper sewage circulation unit according to claim 1, it is characterised in that: the dustbin front inner wall It respectively corresponds soil pick-up storehouse and processing storehouse and is equipped with cleaning dirty mechanism, cleaning dirty mechanism includes the decontamination orifice being connected to filtered water tank, on decontamination orifice It is communicated with multiple nozzles of spacing distribution.