CN116282270A - Method and assembly for removing microplastic in water of washing machine and washing machine - Google Patents
Method and assembly for removing microplastic in water of washing machine and washing machine Download PDFInfo
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- CN116282270A CN116282270A CN202310406372.3A CN202310406372A CN116282270A CN 116282270 A CN116282270 A CN 116282270A CN 202310406372 A CN202310406372 A CN 202310406372A CN 116282270 A CN116282270 A CN 116282270A
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- filter screen
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- 238000005406 washing Methods 0.000 title claims abstract description 88
- 229920000426 Microplastic Polymers 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000010865 sewage Substances 0.000 claims abstract description 64
- 239000007787 solid Substances 0.000 claims abstract description 40
- 229920003023 plastic Polymers 0.000 claims abstract description 33
- 239000004033 plastic Substances 0.000 claims abstract description 33
- 239000012535 impurity Substances 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000011010 flushing procedure Methods 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
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- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 8
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- 239000008213 purified water Substances 0.000 description 6
- 241000282414 Homo sapiens Species 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
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- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/10—Filtering arrangements
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/12—Location of water treatment or water treatment device as part of household appliances such as dishwashers, laundry washing machines or vacuum cleaners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The present disclosure provides a method and an assembly for removing microplastic in water of a washing machine, and a washing machine. The micro-plastic filter screen is used for solving the problems that in the prior art, micro-plastic in filtering washing water needs to be replaced periodically, the complexity of user operation is increased, and extra cost is generated. The method is characterized in that: providing a first unit, a second unit and a third unit on the washing machine; the first unit is used for treating rinsing sewage of the washing machine, a micro-plastic filter screen is arranged in a rinsing sewage discharge pipeline of the first unit, and solid impurities comprising micro-plastic are trapped on the micro-plastic filter screen; the second unit is used for treating spin-drying sewage of the washing machine; the components in the second unit can convert the mechanical rotation of the washing machine in the vertical direction into the horizontal direction during spin-drying and drive the impeller to rotate to form a low-pressure area, so that sewage is sucked into the hollow sleeve, and simultaneously, back flushing is formed on the micro-plastic filter screen; the third unit is used for carrying out cyclone separation on the pressurized spin-drying sewage, so that the micro-plastic solid impurities enter the collecting cavity.
Description
Technical field:
the present disclosure relates to the field of environmental protection, and more particularly, to a method and apparatus for treating microplastic in wastewater of a washing machine.
The background technology is as follows:
because of the wide use of plastic products by human beings, a large number of microplastic are generated, and most of the microplastic is directly discharged in natural environment without treatment, which causes great harm to the ecological environment. Microplastic dispersed in industrial and municipal sewage causes serious concern to people about environmental sanitation pollutants because it can be used as a source of pollutants and also can be a carrier of toxic and harmful substances, and enters human bodies through a water supply system, thus causing potential threat to human health. Scientists have reported in the uk guard that the presence of small-sized microplastic particles in human blood and in the lungs of living humans was confirmed in turn at 3 and 4 months 2022, respectively. Related researches show that the microplastic can generate physiological toxicity after entering the human body and accumulated for a long time, so that the damage of nerve tissue, germ cells and the like is caused. The sewage generated when people use a washing machine to wash clothes is one of the main sources of solid pollutants such as microplastic and the like entering the natural environment.
At present, the micro-plastics in the sewage of the washing machine are mostly treated by filtration in the market. Related patents such as ZL202121781201, ZL202120763894, ZL202020746811, ZL201920959024 and the like are mentioned. The filtering method can effectively filter microplastic in the sewage of the washing machine, however, the filtering device can reduce the sewage flux of the washing machine after multiple uses until the filtering device is blocked and cannot discharge the sewage. Thus, the filtration method requires periodic replacement of the filter screen, increasing the complexity of the operation and additional expense. In addition, the accurate service life of the filter screen is difficult to determine by a user, and the blocking phenomenon can occur at any time after multiple uses or different washings, so that the experience of the user is reduced.
The invention comprises the following steps:
in order to solve the problems in the background art, the specification provides a method and a component for removing microplastic in water of a washing machine, the washing machine and a specific embodiment, and the scheme provided by the specific embodiment shows that after the application is obtained, the microplastic in the sewage of the washing machine can be effectively removed while the economical efficiency, the high efficiency and the user experience of the washing machine are ensured, the direct discharge to the outside is avoided, and the environment protection is facilitated.
The technical scheme disclosed in the specification is as follows:
example 1: firstly, a method for removing microplastic in water of a washing machine is provided, which comprises the following steps:
providing a first unit, a second unit and a third unit on the washing machine;
the first unit is used for treating rinsing sewage of the washing machine, a micro-plastic filter screen is arranged in a rinsing sewage discharge pipeline of the first unit, the rinsing sewage flowing out of the washing machine firstly passes through the filter screen, solid impurities comprising micro-plastic are trapped on the micro-plastic filter screen, and the rinsing sewage is discharged through an outlet of the rinsing sewage discharge pipeline;
the second unit is used for treating spin-drying sewage of the washing machine; the assembly in the second unit can convert the mechanical rotation of the washing machine in the vertical direction into the horizontal direction during spin-drying and drive the impeller to rotate, a low-pressure area is formed in the hollow sleeve through the rotation of the impeller, sewage in the sewage main pipe is sucked into the hollow sleeve through the low-pressure area, and meanwhile, solid impurities trapped on the micro-plastic filter screen in the first unit are sucked out to form back flushing on the micro-plastic filter screen;
the third unit is used for carrying out cyclone separation on the pressurized spin-drying sewage with solid impurities from the hollow sleeve of the second unit; the third unit is provided with a cyclone separator, so that flowing medium flowing out along the hollow sleeve of the second unit can enter the cyclone through a tangential inlet and form high-speed rotation movement, and solid impurities including micro-plastics are thrown towards the wall of the cyclone and flow towards a cyclone underflow opening under the action of centrifugal force and enter the micro-plastics collecting cavity.
Example 2 an assembly for carrying out the method described in example 1, comprising a sewage manifold with solenoid valve 14, is unique in that:
an outlet section controlled by an electromagnetic valve on the sewage main pipe is connected with a filtering and purifying water outlet pipe 20, and a micro-plastic filter screen is arranged in the filtering and purifying water outlet pipe;
the assembly further comprises a large bevel gear 9, a small bevel gear 10, an impeller 11 and a hollow sleeve 13.
The big bevel gear 9 is used for being connected with a speed reduction clutch of the washing machine; the large bevel gear 9 and the small bevel gear 10 form bevel gear transmission with an axis intersection angle of 90 degrees, and the mechanical rotation of the motor of the washing machine in the horizontal direction is converted into the vertical direction; the bevel pinion 10 is coaxially connected with the impeller 11, the bevel pinion positioned at one end of the mechanical rotating shaft drives the mechanical rotating shaft to rotate at a high speed, and the impeller is arranged at the other end of the mechanical rotating shaft; the impeller 11 is located within a hollow sleeve 13 in which a low pressure region can be created upon rotation of the impeller.
The hollow sleeve is a U-shaped bent pipe, a first straight pipe section of the U-shaped bent pipe is connected to the filtering and purifying water outlet pipe 20, and the connection part is positioned at the front end of the micro-plastic filter screen, so that attachments on the micro-plastic filter screen can be sucked out under the action of the low pressure area.
Example 3, this example after optimization was obtained on the basis of example 2:
the assembly also includes a cyclone clean water outlet pipe 19 and a hydrocyclone 5;
the hydrocyclone separator is provided with a tangential inlet 5-2, an overflow port 5-1, a cyclone cavity 5-3, a cone section 5-5, a cone baffle cylinder 5-7 and a collecting cavity 5-8; the conical baffle cylinder is positioned in the collecting cavity, and a gap is reserved at the bottom of the conical baffle cylinder from the inner surface of the collecting cavity for the solid matters comprising micro plastics to pass through;
the tangential inlet is used for being connected with a second straight pipe section of the U-shaped bent pipe;
the overflow port is used for being connected with the rotational flow purification water outlet pipe;
the conical baffle cylinder is used for preventing solid matters comprising micro plastics from flowing back;
the collection cavity is used for collecting solid matters comprising micro plastics;
the rotational flow purifying water outlet pipe is used for being connected with the overflow pipe 2 of the washing machine.
Further, the collection cavity adopts a split threaded connection structure, so that a user can conveniently and automatically clean the collection cavity.
The design is carried out by taking a conventional turbine type full-automatic washing machine as an example. A method and a device for removing microplastic in water of a washing machine and the washing machine mainly obtain purified water through two parts. The first part is used for treating rinsing sewage and consists of a washing inner water pipe, a sewage main pipe, a filtering and purifying water outlet pipe, a filter screen and the like. The principle is as follows: the sewage from washing machine is first flowed into the main sewage pipe via the inner water pipe, and under the action of gravity, the sewage will pass through the filter screen, the solid impurity of micro plastic will be trapped by the filter screen, and the purified water through the filter screen is discharged from the filtering and purifying water outlet pipe. Solid impurities such as microplastic are successfully trapped on the filter screen.
The second part is mainly used for treating the spin-drying sewage and filtering the first part to remove solid impurities such as micro plastics and the like trapped on the filter screen. Mainly comprises a big bevel gear, a small bevel gear, a bearing, a mechanical rotating shaft, an impeller, a hollow sleeve, a cyclone purifying water outlet pipe and the like. The large bevel gear is arranged on a belt wheel of the washing machine, the small bevel gear is meshed with the large bevel gear, and when the washing machine is dehydrated, the small bevel gear rotates at a high speed under the drive of the large bevel gear, and the mechanical rotation of the washing machine in the original vertical direction can be converted into the horizontal direction through the connection of the two bevel gears. The bevel pinion is arranged on the mechanical rotating shaft and drives the mechanical rotating shaft to rotate at a high speed, and a pair of bearings are arranged on the mechanical rotating shaft to play a role in supporting and reducing friction. An impeller is arranged at one end of the mechanical rotating shaft and is positioned in the hollow sleeve. The specific working principle is as follows: when the washing machine is dehydrated, the motor provides power, and a large bevel gear arranged on a belt wheel of the washing machine drives the pinion to start rotating at a high speed. Simultaneously, an impeller connected with the mechanical rotating shaft starts to work, a low-pressure area is formed in the hollow sleeve, sewage in the sewage main pipe is sucked into the hollow sleeve, and solid impurities such as micro-plastics and the like trapped on the filter screen in the rinsing process are sucked out, so that a back flushing effect is formed on the filter screen. The sewage after supercharging on the filter screen enters the cyclone through the tangential inlet along the hollow sleeve to form high-speed rotary motion, and under the action of centrifugal force, the solid impurities with high density such as the microplastic are thrown to the vicinity of the wall surface of the cyclone and flow to the bottom flow port of the cyclone to pass through the conical baffle cylinder and enter the microplastic collecting cavity, so that the separation of the solid impurities such as the microplastic and the water is realized. Wherein the conical baffle cylinder can prevent solid impurities such as micro plastics and the like entering the collecting cavity from entering the cyclone cylinder body again, and avoid the risk that the solid impurities enter the overflow port of the cyclone and are discharged from the cyclone purifying water outlet pipe
The above-mentioned at least one technical solution adopted by one or more embodiments of the present disclosure can achieve the following
The beneficial effects are that:
firstly, the mechanical power of the washing machine is utilized to pressurize sewage, and the removal of solid impurities such as micro-plastics and the like can be realized without additional energy consumption;
secondly, after the scheme is applied, the washing machine can be directly modified on the existing washing machine, the structure is compact and compact, the installation and maintenance are convenient, the washing machine can be installed in an embedded mode, and redundant space is not needed;
thirdly, the self-power of the washing machine is utilized, and the automatic back flushing function is realized on the filter screen through the pumping effect of the design impeller, so that the defects of blockage of the filter device or frequent replacement of the filter screen are overcome;
in addition, the microplastic collecting cavity of the cyclone underflow opening is screwed on the outer wall of the washing machine through a threaded design structure, so that the microplastic collecting cavity is conveniently detached from the outside of the washing machine and regularly collected.
In summary, the scheme provided by the invention is that through the pipeline design and the self power of the washing machine in the dewatering and spin-drying stage is utilized to form a relevant low-pressure area, the automatic back flushing of the filtering module is realized, the filtering and the rotational flow are combined, the high-efficiency removal of solid impurities such as micro plastics in the sewage of the washing machine is realized under the condition that extra energy consumption is not needed by the self kinetic energy of the washing machine, and after the application of the invention is obtained, the micro plastics in the sewage of the washing machine can be effectively removed while the economy, the high efficiency and the user experience of the washing machine are ensured, the direct discharge to the outside is avoided, and the environment protection is facilitated.
Description of the drawings:
for a clearer description of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described as follows: the drawings in the following description are only some of the embodiments described in the present specification, and other drawings may be obtained from these drawings without inventive faculty for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a device for achieving microplastic separation in a turbo-type washing machine;
FIG. 2 is an enlarged view of a portion of the conduit of FIG. 1;
FIGS. 3 and 4 are schematic flow diagrams of sewage in the pipeline during rinsing and dewatering respectively;
FIG. 5 is an overall construction view of the assembly after application to a washing machine;
FIG. 6 is a top view of a hydrocyclone;
FIG. 7 is a cross-sectional view of FIG. A-A, showing a cross-sectional structure of the hydrocyclone and a schematic flow diagram of the microplastic being separated;
fig. 8 and 9 are three-dimensional and two-dimensional views, respectively, of a conical baffle of a hydrocyclone.
1-a water drum of a washing machine; 2-overflow pipe of washing machine; 3-washing the inner water pipe; 4-a washing machine belt wheel; 5-hydrocyclone separator; 6-an electric motor; 7-a belt; 8-a mechanical rotating shaft; 9-big bevel gears; 10-bevel pinion; 11-an impeller; 12-a bearing; 13-a hollow sleeve; 14-an electromagnetic valve; 15-a pull rod; a 16-reduction clutch; 17-a sewage main pipe; 18-a micro plastic filter screen; 19-a rotational flow purifying water outlet pipe; 20-filtering and purifying a water outlet pipe; 21-a sewage piston switch; 22-low pressure zone; 5-1-overflow port; 5-2-tangential inlet; 5-3-cyclone chamber; 5-4-high speed rotating fluid; 5-5-cone segments; solid particles such as 5-6-microplastic; 5-7-a conical baffle cylinder; 5-8-collection chamber.
The specific embodiment is as follows:
the technical scheme provided by the disclosure is further described below with reference to the accompanying drawings:
referring to fig. 1 to 9, there is provided a specific structural view of an assembly for removing microplastic from water of a washing machine.
The working principle of the assembly of the invention after being embedded with the washing machine is described with reference to the accompanying drawings.
The invention relates to a method and a device for removing microplastic in water of a washing machine and the washing machine, wherein purified water is obtained mainly through two parts. The first part adopts a filtering module to treat rinsing sewage (including sewage rinsed for a plurality of times in the earlier stage), and the second part adopts a cyclone separation module to treat spin-drying sewage and solid impurities such as micro plastics and the like which are trapped on the filter screen after the filtering treatment of the first part. The filtering module is sequentially composed of a washing inner water pipe 3, a sewage main pipe 17, a filtering and purifying water outlet pipe 20, a filter screen 18 and the like, wherein the filter screen 18 is arranged in the filtering and purifying water outlet pipe 20. The cyclone separation module sequentially comprises a large bevel gear 9, a small bevel gear 10, a bearing 12, a mechanical rotating shaft 8, an impeller 11, a hollow sleeve 13, a cyclone 5, a cyclone purification water outlet pipe 19 and the like. Wherein, big bevel gear 9 is installed on the band pulley 4 of washing machine coaxially, and bevel pinion 10 meshes with big bevel gear 9, and when the dehydration, under the drive of big bevel gear 9, bevel pinion 10 high-speed rotation can be changed the mechanical rotation of the vertical direction originally to the horizontal direction in the washing machine dehydration process through the connection of two bevel gears. The bevel pinion 10 is mounted on the mechanical rotating shaft 8 and drives the mechanical rotating shaft 8 to rotate at a high speed, and a pair of bearings 12 are mounted on the mechanical rotating shaft to support and reduce friction. An impeller 11 with pumping effect is mounted at one end of the mechanical rotary shaft 8, and the impeller 11 is positioned in a hollow sleeve 13. The top end of the hollow sleeve 13 along the direction of the impeller 11 is connected with the tangential inlet 5-2 of the cyclone 5 to form a channel for the spin-drying sewage to enter the cyclone. The cyclone underflow outlet is provided with a micro-plastic collecting cavity 5-8 with threads, and the collecting cavity 5-8 passes through a corresponding opening on the outer wall 1 of the washing machine, so that the collecting cavity 5-8 can be conveniently unscrewed and taken out from the cyclone underflow opening, and solid impurities 5-6 such as micro-plastic and the like can be conveniently cleaned regularly. In addition, the conical baffle cylinder 5-7 positioned in the collecting cavity 5-8 is arranged at the underflow outlet of the cyclone, so that solid impurities 5-6 such as micro plastics entering the collecting cavity 5-8 can be prevented from entering the cyclone cylinder again, and the risk that the solid impurities enter the overflow outlet 5-1 of the cyclone and are discharged from the cyclone purifying water outlet pipe 19 is avoided.
Taking a conventional turbine type full-automatic washing machine as an example, the principle of treating rinsing sewage by the first part of filtering module is as follows: after the washing machine is rinsed, the sewage piston switch 21 is turned on, sewage generated in the rinsing process flows into the sewage header pipe 17 from the washing inner water pipe 3, under the action of gravity, the sewage passes through the filter screen 18, solid impurities such as micro plastics and the like are trapped by the filter screen 18, and purified water passing through the filter screen 18 is discharged from the filtering and purifying water outlet pipe 20. Solid impurities such as microplastic are successfully trapped on filter screen 18.
After the sewage is discharged, the motor 6 starts to rotate, the washing machine enters a dehydration stage, and the motor transmits the power of the motor 6 to the speed reduction clutch 16 on one side of the belt wheel through the transmission belt wheel 4, so that the high-speed rotation of the dehydration barrel is realized, and the functions of the washing machine are originally carried. In the process of rotating the belt wheel 4, the large bevel gear 9 fixedly arranged on the other side of the belt wheel 4 starts to rotate along with the belt wheel 4, the rotating speed is changed through the small bevel gear 10 meshed with the large bevel gear 9 (the specification of the large bevel gear and the specification of the small bevel gear are determined according to practical conditions), the high-speed rotation of the small bevel gear 10 is transmitted to the mechanical rotating shaft 8 coaxially connected with the small bevel gear, the impeller 11 at the tail end of the rotating shaft 8 is driven to form a pumping effect, the impeller 11 with the pumping effect forms a low-pressure area 22 inside the hollow sleeve 13, spin-drying sewage in the sewage manifold 17 is sucked into the hollow sleeve 13, and meanwhile, solid impurities 5-6 such as micro plastics and the like trapped on the filter screen 18 in the rinsing process are sucked out, so that a back flushing effect is formed on the filter screen 18.
The sewage obtained by back flushing and the like enters the cyclone 5 along the hollow sleeve 13 through the tangential inlet 5-2 to form high-speed rotary motion, and under the action of centrifugal force, the solid impurities 5-6 of the micro plastics and the like with high density are thrown to the vicinity of the wall surface of the cyclone and flow to the bottom flow port of the cyclone to enter the micro plastic collecting cavity 5-8 through the conical baffle cylinder 5-7, so that the separation of the solid impurities 5-6 of the micro plastics and the like from water is realized. The obtained purified water 5-4 flows out from the overflow port 5-1 of the cyclone, and finally is discharged from the cyclone purified water outlet pipe 19.
The whole process for removing solid impurities such as micro plastic and the like can be briefly summarized as follows: the rinsing sewage is used for intercepting solid impurities such as micro plastics and the like on a filter screen through a filter module under the action of self gravity before the washing machine is used for spin-drying; the spin-drying sewage enters the cyclone 5 for centrifugal separation by utilizing a mechanical transmission structure and the pumping effect of the impeller 11, carrying the micro plastics trapped on the filter screen (backwash effect), and the separated solid impurities such as the micro plastics enter the collecting cavity for collection.
Claims (5)
1. A method for removing microplastic in water of a washing machine, comprising the following steps:
providing a first unit, a second unit and a third unit on the washing machine;
the first unit is used for treating rinsing sewage of the washing machine, a micro-plastic filter screen is arranged in a rinsing sewage discharge pipeline of the first unit, the rinsing sewage flowing out of the washing machine firstly passes through the filter screen, solid impurities comprising micro-plastic are trapped on the micro-plastic filter screen, and the rinsing sewage after being filtered is discharged through an outlet of the rinsing sewage discharge pipeline;
the second unit is used for treating spin-drying sewage of the washing machine; the assembly in the second unit can convert the mechanical rotation of the washing machine in the vertical direction into the horizontal direction during spin-drying and drive the impeller to rotate, a low-pressure area is formed in the hollow sleeve through the rotation of the impeller, sewage in the sewage main pipe is sucked into the hollow sleeve through the low-pressure area, and meanwhile, solid impurities trapped on the micro-plastic filter screen in the first unit are sucked out to form back flushing on the micro-plastic filter screen;
the third unit is used for carrying out cyclone separation on the pressurized spin-drying sewage with solid impurities from the hollow sleeve of the second unit; the third unit is provided with a cyclone separator, so that flowing medium flowing out along the hollow sleeve of the second unit can enter the cyclone through a tangential inlet and form high-speed rotation movement, and solid impurities including micro-plastics are thrown towards the wall of the cyclone and flow towards a cyclone underflow opening under the action of centrifugal force and enter the micro-plastics collecting cavity.
2. An assembly for removing microplastic from water in a washing machine, comprising a main sewer pipe (17) with an electromagnetic valve (14), characterized in that:
an outlet section controlled by an electromagnetic valve on the sewage main pipe is connected with a filtering and purifying water outlet pipe (20), and a micro-plastic filter screen is arranged in the filtering and purifying water outlet pipe;
the assembly further comprises a large bevel gear (9), a small bevel gear (10), an impeller (11) and a hollow sleeve (13);
the big bevel gear (9) is used for being connected with a speed reduction clutch of the washing machine; the large bevel gear (9) and the small bevel gear (10) form bevel gear transmission with an axis intersection angle of 90 degrees, and the mechanical rotation of the motor of the washing machine in the horizontal direction is converted into the vertical direction; the small bevel gear (10) is coaxially connected with the impeller (11), the small bevel gear positioned at one end of the mechanical rotating shaft drives the mechanical rotating shaft to rotate at a high speed, and the impeller is arranged at the other end of the mechanical rotating shaft; the impeller (11) is positioned in the hollow sleeve (13), and a low-pressure area can be formed in the hollow sleeve after the impeller rotates;
the hollow sleeve is a U-shaped bent pipe, a first straight pipe section of the U-shaped bent pipe is connected to the filtering and purifying water outlet pipe (20), and the connecting part is positioned at the front end of the micro-plastic filter screen, so that attachments on the micro-plastic filter screen can be sucked out under the action of the low-pressure area.
3. An assembly for removing microplastic from water of a washing machine according to claim 2, wherein:
the assembly further comprises a cyclone purifying water outlet pipe (19) and a hydrocyclone (5);
the hydrocyclone separator is provided with a tangential inlet (5-2), an overflow port (5-1), a cyclone cavity (5-3), a cone section (5-5), a cone baffle cylinder (5-7) and a collecting cavity (5-8); the conical baffle cylinder is positioned in the collecting cavity, and a gap is reserved at the bottom of the conical baffle cylinder from the inner surface of the collecting cavity for the solid matters comprising micro plastics to pass through;
the tangential inlet is used for being connected with a second straight pipe section of the U-shaped bent pipe;
the overflow port is used for being connected with the rotational flow purification water outlet pipe;
the conical baffle cylinder is used for preventing solid matters comprising micro plastics from flowing back;
the collection cavity is used for collecting solid matters comprising micro plastics;
the rotational flow purifying water outlet pipe is used for being connected with a washing machine overflow pipe (2).
4. An assembly for removing microplastic from water of washing machine according to claim 3, wherein:
the collecting cavity adopts a split threaded connection structure.
5. A washing machine, characterized in that: use of any of the assemblies of claims 2, 3 or 4 for removing microplastic from water in a washing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN116282270B (en) | 2023-12-08 |
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