JPH05345095A - Drain purifying device of electric washing machine - Google Patents

Abstract

PURPOSE:To decompose an organic matter and to eliminate dirt while preventing large dust discharged from an electric washing machine from clogging up during the drainage by providing an approximately cylindrical filter part and a by-pass part together, and forming a lid part by-pass on a lid. CONSTITUTION:In a drain purifing device 16, an inflow port 18 to be inserted a drain hose and an outflow port 19 to be inserted a second drain hose are arranged in an approximately cylindrical main body and a partition plate 21 for forming a water passage 20 for connecting the inflow port 18 and the outflow port 19 is arranged so as to form a by-pass part 22. Moreover, a filter part inflow port 23 is arranged near the outflow port 18 of the partition plate 21. A filter part 24 forms a filter layer 27 by stuffing granular bodies between both of approximately cylindrical inner and outer nets 26, 25. On the other hand, a lid part by-pass 29 is formed on a lid 28. Thereby, an organic matter caught in the filter layer 27 is decomposed with spending time, while the clogging on the filter part 24 caused by a large dust discharged from an electric washing machine during the drainage is prevented. Moreover, dirt can be eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wastewater purification of equipment for discharging dirty water such as washing machines and dishwashers used in general households.

[0002]

2. Description of the Related Art In machines for discharging dirty water, such as washing machines and dishwashers used in general households, the drainage is currently being sent directly to sewage. In recent years, environmental pollution has become a serious problem, but according to the literature, the drainage from laundry accounts for about 13% of the domestic wastewater.

The present invention will be described below as an application example of an electric washing machine. As shown in FIG. 6, the conventional dewatering washing machine is provided with a washing tub / dehydrating tub 2 inside a water tub 1 for storing water at the time of washing. This washing tub / dehydrating tub 2 has a large number of small holes 3 for draining water on its side wall and a pulsator 4 for stirring clothes at the center bottom. A bearing box 5 has a mechanism for transmitting a driving force of a motor 6 so as to rotationally drive the pulsator 4 for washing and the washing tub / dehydrating tub 2 for dehydration. Further, the motor 6 transmits the driving force to the bearing box 5 by the belt 7 and the pulley 8. 9 is a reinforcing plate,
The water tank 1, the motor 6, the bearing box 5 and the like are arranged, and the support rod 1
0, the main body 1 via the suspension unit 11
It is suspended from the corners of 2.

In the case of washing, when laundry and detergent are put in the washing tub / dehydrating tub 2 and the operation is started, water is supplied and a certain amount of water is stored, and the pulsator 4 is rotated by driving the motor 6 to wash the laundry. Stir. When the washing is completed, the drain valve 13 provided at the bottom of the water tank 1 is opened, and the drainage is discharged to the drainage port 15 of the building or the like via the drainage hose 14.

Dewatering of the laundry is performed by rotating the washing tub / dehydrating tub 2 by driving the motor 6 by switching the clutch in the bearing box 5 with the drain valve 13 opened, and by centrifugal force of rotation.

Drainage containing dirt and detergent after washing,
Although it is discharged into domestic sewage, in areas where sewerage is not complete, drainage is discharged directly to rivers and other sources, causing environmental pollution.

[0007]

In view of the above problems, in the present invention, in order to reduce environmental pollution as much as possible, wastewater discharged from a washing machine or the like should be purified to the environment and then discharged to the environment. The aim is to provide a more reliable device.

[0008]

In order to achieve the above-mentioned object, the present invention provides a lid of a substantially cylindrical drainage purifier 16 with a lid bypass. Furthermore, the substantially cylindrical filter portion 24
An inner net 26 and a filter water passage 28 are provided on the center side of the. An inlet straight portion 36 is provided near the filter inlet 23, and a lid straight portion 37 is provided near the lid.
To provide.

[0009]

With the above construction, while preventing the clogging of the filter section due to large dust in the waste water, the organic matter captured in the filtering section is decomposed over time, and the amount of organic matter discharged to the environment is reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 4, a drain hose 1 for a washing machine
A drainage purifying device 16 is provided at the tip of 4, and drainage is discharged from this to a drainage port 15 of a building or the like via a second drainage hose 17.

FIG. 4 shows an example in which the drainage purification device 16 is provided at the tip of the drainage hose 14 that has exited from the washing machine. However, the drainage purification device 16 is installed in the washing machine in the middle of the drainage hose 14. The structure may be provided.

FIG. 1 shows the details of the waste water purification device 16. The drainage purifying device 16 has a substantially cylindrical shape, and is provided with an inlet 18 for inserting and fixing the drain hose 14 and an outlet 19 for inserting and fixing the second drain hose 17. Inlet 18 and outlet 19
A partition plate 21 that forms a water passage 20 that connects the two is provided and a bypass portion 22 is formed.

A filter portion inlet 23 is provided near the inlet 18 of the partition plate 21. The filter portion 24 is provided with a substantially cylindrical outer net 25 and an inner net 26, and a granular material such as ceramic is packed between them to form a filtration layer 27.

A lid portion bypass 29 is formed on the lid 28. The large dust that has flowed on the surface of the outer net 25 passes through the lid bypass 29 and flows out from the filter outlet 30 to the bypass 22.

At this time, large dust such as thread waste in the drainage flowing in the filter portion water passage 31 inside the inner net 26 may be caught around the inner net 26 and block the filter portion water passage 31.

Therefore, as shown in FIG.
2 is a substantially cylindrical filter water passage 33 with no holes inside
And the filter section outlet 3 provided on the partition plate 21
It opens at around 0 and forms a filtration section outlet 34. Between the inner net 32 and the filter water pipe 33 is a filter water passage 35 through which filtered waste water flows. The inside of the filter water passage 33 serves as a filter water passage 37 connected to the lid bypass 36. With the momentum of drainage flowing straight from the filter water passage 37 to the filter outlet 38,
The drainage from the filtration section outlet 34 is sucked and flowed through the filtration section water passage 35. In this way, the filter inlet 3
The wastewater flowing in from 9 is distributed well to the filter water passage 35 and the filter water passage 37 and flows.

The filter section 24 includes a partition plate 21 and a lid 3.
It is fixed at 2. The partition plate 21 is provided with a filter water passage guide 35 that protrudes into the water passage 20 and has an opening portion that opens toward the front side of the flowing water in the water passage 20. The filter water passage guide 35 has, for example, a substantially 1/4 spherical shape.
Since the filter part water passage guide 35 projects to the water passage 20, the water passage 20 is connected to the filter part water passage guide 3.
In the vicinity of No. 1, the cross-sectional area is small, the flow velocity of the drainage flowing therethrough is faster than that in the area having a large area in front of it, and the suction force acts on the filter portion outlet 30. As a result, the drainage flowing from the inflow port 18 can be distributed to the bypass section 22 and the filter section 24 and flow well.

In FIG. 1, the wastewater that has flowed in through the filter inlet 23 contains large dust such as lint, which is caught by the outer net 25 and the surface layer of the filtration layer 27 to pull the yarn, which becomes large. Cause clogging. In the present invention, in order to eliminate this clogging, as shown in FIG. 3, a substantially cylindrical inlet straight portion 41 is formed in order to form a non-filtering portion around the filter inlet 40.

A lid part bypass 43 is formed on the lid 42. In this case, thread waste caught on the outer net 44 and the surface layer part of the filtration layer 45 grows up to the lid part bypass 43, and the lid part bypass 43 is formed. It will cause clogging.

Therefore, the lid straight portion 46 is formed in order to form a non-filtering portion around the lid 42 so as to prevent the thread waste from clogging around the lid 42. When much dust is captured and water flow becomes poor, it can be reused by opening the lid 42 and taking out the filter portion 47 for cleaning.

In the washing drainage liquid, microorganisms such as bacteria existing in nature exist, and the filter layer 2 formed between the outer net 25 and the inner net 26 of the filter portion 24.
It comes to inhabit in the porous part of the granular material such as the ceramic of 7. Fine organic substances are adsorbed and captured by the bacteria and decomposed over time.

[0023]

According to the present invention, it is possible to remove a part of organic contaminants in waste water discharged from a washing machine or the like. In the experiment conducted by the inventor, about 10% of organic contaminants (COD: measured by chemical oxygen demand) in the organic contaminants in the waste water could be removed.

As described above, it is possible to obtain a great effect that organic contaminants can be removed although it is a part of the drained water that has been conventionally discharged.

Further, the effect can be exhibited over a long period of time.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a waste water purification device showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a waste water purification device showing an embodiment of the present invention.

FIG. 3 is a cross-sectional view of a waste water purification device showing an embodiment of the present invention.

FIG. 4 is a sectional view of a washing machine showing an embodiment of the present invention.

FIG. 5 is a cross-sectional view of a conventional washing machine.

[Explanation of symbols]

 16 Waste Water Purification Device 22 Bypass Part 23 Filter Part Inlet 24 Filter Part 28 Lid 29 Lid Bypass 32 Inner Net 33 Filter Part Water Pipe 40 Filter Part Inlet 41 Inlet Straight Part 42 Lid 43 Lid Straight Part 47 Filter Part

Claims (3)

[Claims] 1. A device for purifying waste water discharged from a device such as an electric washing machine, which is provided with a substantially cylindrical filter part and a bypass part, and another lid part bypass is formed on a cover. 2. The wastewater purifying apparatus according to claim 1, wherein a water passage pipe for the filter portion is formed inside the inner net. 3. The wastewater purifying apparatus according to claim 1, wherein an inflow inlet straight portion is formed near the filter portion inlet of the filter portion, and a lid straight portion is formed near the lid.