WO2008012963A1 - Machine à laver et procédé de récupération d'un ion métallique dans celle-ci - Google Patents

Machine à laver et procédé de récupération d'un ion métallique dans celle-ci Download PDF

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Publication number
WO2008012963A1
WO2008012963A1 PCT/JP2007/054641 JP2007054641W WO2008012963A1 WO 2008012963 A1 WO2008012963 A1 WO 2008012963A1 JP 2007054641 W JP2007054641 W JP 2007054641W WO 2008012963 A1 WO2008012963 A1 WO 2008012963A1
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WO
WIPO (PCT)
Prior art keywords
water
washing machine
metal ion
washing
metal
Prior art date
Application number
PCT/JP2007/054641
Other languages
English (en)
Japanese (ja)
Inventor
Mugihei Ikemizu
Original Assignee
Sharp Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Priority to CN2007800278299A priority Critical patent/CN101495695B/zh
Priority to US12/305,607 priority patent/US20100005838A1/en
Priority to EP07738126A priority patent/EP2045389A4/fr
Publication of WO2008012963A1 publication Critical patent/WO2008012963A1/fr

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Classifications

    • 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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements

Definitions

  • the present invention relates generally to a washing machine, and more particularly to a washing machine capable of imparting metal ions to a fiber structure.
  • finishing substance When washing is performed in a washing machine, it is often performed to add a finishing substance to water, particularly rinse water.
  • Common finishing substances include softeners, glues and the like.
  • metal ions for example, silver ions
  • Patent Document 1 JP 2004-24597 A
  • Patent Document 2 JP 2004-24597 A
  • Patent Document 2 JP 2004-24597 A
  • Patent Document 2 JP 2004-24597 A
  • Patent Document 2 describes a washing machine that can stably supply a certain concentration of metal ions to the laundry being washed.
  • metal ions are added to the water used for washing and supplied to the laundry when rinsing is performed during washing.
  • the metal ions are deposited as metal compounds and metals inside the textile structure of the laundry, and the laundry Antibacterial becomes possible.
  • some of the metal ions do not adhere to the laundry and are discharged with the waste water.
  • JP-A-59-104490 (Patent Document 3) describes a method by electrolytic treatment.
  • Patent Document 4 discloses a method for recovering metal ions using a mass
  • Patent Laid-Open No. 6-145828 discloses a method for collecting metal ions with sulfides.
  • Patent Document 6 discloses a method using an adsorbent in JP-A-7-185568
  • Patent Document 7 JP-A-60-61039
  • Patent Document 1 Japanese Patent Laid-Open No. 2004-24597
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2004-33996
  • Patent Document 3 Japanese Patent Application Laid-Open No. 59-104490
  • Patent Document 4 Japanese Patent Laid-Open No. 61-158796
  • Patent Document 5 JP-A-6-145828
  • Patent Document 6 JP-A-7-185568
  • Patent Document 7 Japanese Patent Laid-Open No. 60-61039
  • an object of the present invention is to provide a washing machine capable of recovering metal ions supplied to water used for washing.
  • the washing machine according to the present invention is arranged so as to come into contact with the metal ion addition unit for adding metal ions to water and the water to which the metal ions have been added by the metal ion addition unit, and collect the metal ions in the water A metal ion recovery unit.
  • metal ions can be collected before the washing machine power is discharged.
  • the higher the concentration of metal ions in water the easier it is to collect metal ions.
  • the concentration of metal ions in water decreases and metal ions can be recovered. It becomes difficult. If metal ions are used only in a specific process or if the metal ion concentration in a specific process is very high compared to other processes, it is only mixed with wastewater from other processes. However, the concentration of metal ions in water decreases, making recovery difficult.
  • the final rinsing process drains and the washing process or non-final rinsing process. If the waste water from the rinsing process is mixed, the metal ion concentration is lowered.
  • a washing machine is a washing machine capable of imparting metal ions to a fiber structure, and is disposed so as to come into contact with water used for washing, and collects metal ions in water.
  • a metal ion recovery unit is a washing machine capable of imparting metal ions to a fiber structure, and is disposed so as to come into contact with water used for washing, and collects metal ions in water.
  • the metal ion recovery unit By arranging the metal ion recovery unit so as to come into contact with water used for washing, the metal ions contained in the wastewater are added to the water used during washing and do not adhere to the washing machine.
  • the washing machine power can also be recovered before it is discharged.
  • the metal ion recovery unit is preferably removable from the washing machine.
  • the metal ion recovery unit can be collected before the washing machine body is crushed.
  • the washing machine after collecting the metal ion recovery unit can be processed in the same process as the conventional washing machine.
  • the metal recovered by the metal ion recovery unit can be reused. In this way, it is possible to collect and reuse the metal ions that were conventionally discharged together with the waste water. [0017] By doing so, when the washing machine body is recovered and the materials used are recycled, the metal ion recovery unit that does not interfere with the recycling process can be collected, and the recovered metal Can be reused.
  • the metal ion recovery unit preferably includes an adsorbent for selectively recovering a specific metal.
  • Washing water which is water used for washing, such as tap water, contains many metal ions in addition to metal ions added as a finishing substance.
  • Metal ions added for antibacterial purposes are usually contained in washing water at a concentration of about SO / z gZL lOmgZL, but general water is a sodium ion with a concentration of several tens of mgZL or more. It often contains calcium ions, potassium ions, and magnesium ions.
  • the adsorbent that adsorbs such metal ions contained in tap water is saturated without sufficiently adsorbing the metal ions to be recovered, which are added as finishing substances.
  • the specific metal preferably contains at least one of silver ions and copper ions.
  • the washing machine according to the present invention preferably includes a drainage path, and the metal ion recovery unit is disposed in the drainage path.
  • the exterior of the washing machine must withstand the vibrations of dehydration during washing and the impact when an imbalance occurs, and the material is strong so that users do not put their hands inside the washing machine. And is fixed with screws or nails, and is not easily removed from the washing machine body.
  • the drainage channel can be installed in a state where it can be easily attached or detached, or can be formed with soft grease, etc., since the water flows only inside even if it is not particularly required to withstand vibration.
  • the washing machine itself is recycled by installing a metal ion recovery unit in this part. In this case, it becomes easy to remove the metal ion recovery unit.
  • the metal ion recovery unit can be collected without disassembling the washing machine body.
  • the drainage path includes a first drainage path having a metal ion recovery unit and a second drainage path not having a metal ion recovery unit. And are preferred.
  • wastewater when metal ions are added as a finishing substance passes through the first drainage path having a metal ion recovery unit, and wastewater is discharged without adding metal ions as a finishing substance.
  • the adsorbent used in the metal ion recovery unit is a resin
  • the ability as an adsorbent decreases when the surfactant used when washing laundry is adsorbed on the surface of the resin
  • By properly using one drainage channel and the second drainage channel it is possible to prevent a decrease in the adsorbing power of the adsorbent due to the adsorption of the surfactant.
  • the washing machine according to the present invention further includes drainage clogging detection means.
  • a method for recovering metal ions in a washing machine according to the present invention is a metal ion recovery unit in a washing machine capable of imparting metal ions to a fiber structure so as to come into contact with water used for washing. It is preferable that the method is used to collect metal ions in water.
  • the metal ion recovery unit By arranging the metal ion recovery unit in contact with the water used for washing, the metal contained in the wastewater is added to the water used during washing and does not adhere to the laundry. Ions can be collected before the household power is discharged.
  • a washing machine capable of recovering metal ions supplied to water used for washing can be provided.
  • FIG. 1 is a vertical sectional view showing an overall configuration of a washing machine as one embodiment of the present invention.
  • FIG. 2 is a schematic vertical sectional view of the water supply device when the front force is also seen.
  • FIG. 3 is a schematic sectional view of metal ion water generating means.
  • (A) is a horizontal schematic cross-sectional view
  • (B) is a vertical schematic cross-sectional view.
  • FIG. 4 is a flowchart of the entire washing process of the washing machine according to the embodiment of the present invention.
  • FIG. 5 A diagram showing a metal ion recovery unit attached to a drain hose (A), a diagram showing an example of the interior of the metal ion recovery unit (B), and another example of the interior of the metal ion recovery unit FIG.
  • FIG. 6 is a diagram showing a schematic cross section of a drainage path of a washing machine as another embodiment of the present invention.
  • FIG. 7 is a diagram showing a schematic cross section of a drainage channel including a filter.
  • FIG. 8 is a flowchart of a conventional washing machine draining process.
  • FIG. 9 is a flowchart of a process for draining water containing metal ions of a washing machine according to another embodiment of the present invention.
  • FIG. 10 is a flowchart of a process of draining water that does not contain metal ions in a washing machine according to another embodiment of the present invention.
  • FIG. 11 is a vertical sectional view showing an overall configuration of a washing machine as still another embodiment of the present invention.
  • FIG. 1 is a vertical sectional view showing the overall configuration of the washing machine.
  • the washing machine 1 is a fully automatic type.
  • the washing machine 1 includes an exterior 10.
  • the exterior 10 has a rectangular parallelepiped shape and is formed of metal or synthetic resin, and the upper surface and the bottom surface are openings.
  • An upper surface plate 11 made of synthetic resin is overlaid on the upper surface opening of the exterior 10, and the upper surface plate 11 is fixed to the exterior 10 with screws.
  • FIG. 1 when the left side is the front of the washing machine 1 and the right side is the back, a back panel 12 made of synthetic resin is also superimposed on the upper surface of the top plate 11 located on the back side of the washing machine 1, The back panel 12 is fixed to the exterior 10 or the top plate 11 with screws.
  • a base 13 made of synthetic resin is stacked on the bottom surface opening of the exterior 10, and the base 13 is fixed to the exterior 10 with screws. In FIG. 1, the illustration of any of the screws described so far is omitted.
  • legs 14a and 14b for supporting the exterior 10 on the floor are provided.
  • the front leg portion 14a is a screw leg of variable height, and the washing machine 1 is leveled by turning this leg.
  • the leg 14b on the back side is a fixed leg integrally formed with the base 13.
  • the upper surface plate 11 is formed with a laundry loading port 15 for loading laundry into a washing tub 30 described later.
  • the lid 16 is coupled to the top plate 11 by a hinge portion 17 and rotates in a vertical plane and covers the laundry input port 15 from above.
  • a water tub 20 and a washing tub 30 also serving as a dewatering tub are disposed. Both the water tub 20 and the washing tub 30 are in the shape of a cylindrical cup with an open top surface, each axis is in the vertical direction, and the tub 20 is on the outside and the washing tub 30 is on the inside. So that they are arranged concentrically.
  • the water tank 20 is suspended by the suspension member 21.
  • the suspension member 21 is connected to the lower part of the outer surface of the aquarium 20 and the corner part of the inner surface of the exterior 10 in a total of four locations. It is deployed and supports the aquarium 20 so that it can swing in a horizontal plane.
  • An annular balancer 32 is attached to the edge of the upper opening of the washing tub 30.
  • the balancer 32 has a function of suppressing vibration when the washing tub 30 is rotated at a high speed for dehydrating the laundry.
  • a pulsator 33 for generating a flow of washing water or rinsing water in the tub 30 is arranged on the bottom surface of the inside of the tub 30 !.
  • a drain port 34 is formed at the bottom of the washing tub 30 covered with the pulsator 33.
  • a drive unit 40 is attached to the lower surface of the water tank 20.
  • the drive unit 40 includes a motor 41, a clutch mechanism 42, and a brake mechanism 43, and a dewatering shaft 44 and a pulsator shaft 45 project upward from the center thereof.
  • the dewatering shaft 44 and the pulsator shaft 45 have a double shaft structure in which the dewatering shaft 44 is on the outer side and the norseter shaft 45 is on the inner side.
  • the dehydrating shaft 44 enters the water tub 20 by force from the lower side to the upper side, and is connected to the washing tub 30 to support it.
  • the pulsator shaft 45 passes through the water tub 20 from the lower side to the upper side and further enters the washing tub 30 and is connected to and supports the pulsator 33. Seal members for preventing water leakage are disposed between the dewatering shaft 44 and the water tank 20 and between the dewatering shaft 44 and the pulsator shaft 45, respectively.
  • a water supply device 2 is provided in a space below the back panel 12, and the water supply device 2 is connected to a container-shaped water supply port 53.
  • the water supply port 53 is provided at a position facing the inside of the washing tub 30.
  • the water supply apparatus 2 has a connecting pipe 51 protruding upward through a through hole 18 provided in the back panel 12.
  • a water supply hose (not shown) for supplying tap water or the like is connected to the connection pipe 51, and is connected to a water tap through the hose.
  • the water supply apparatus 2 has a structure shown in FIG. Water is supplied to the washing tub 30 through the water supply port 53 described above!
  • FIG. 2 is a schematic vertical sectional view of the water supply device 2 when viewed from the front.
  • the water supply device 2 includes a main water supply valve 50a, a sub water supply valve 50b, a connection pipe 51, a main water supply pipe 52a that is a first water supply path, and a sub water supply path. It comprises a water supply pipe 52b and metal ion water generating means 90 as a metal ion addition unit for adding metal ions to the water flowing in the main water supply pipe 52a.
  • the outlet side of the connecting pipe 51 is connected to the main water supply pipe 52a and the sub water supply pipe 52b,
  • the water supply pipe can supply water to the water supply port 53.
  • the main water supply pipe 52a is provided with metal ion water generating means 90.
  • a drainage hose 60 is attached to the bottom of the tank 20 as a drainage path for draining the water in the tank 20 and the washing tank 30 out of the exterior 10! .
  • the drain pipe 61 is connected to a location near the outer periphery of the bottom surface of the water tank 20.
  • the water supplied to the washing tub 30 is discharged into the space between the washing tub 30 and the tub 20 through the drain 34 at the bottom of the washing tub 30 and passes through the drain pipe 61 and the drain valve 62. Then, it flows into the drainage hose 60 and is discharged to the outside. Also, the water in the washing tub 30 is discharged into the space between the washing tub 30 and the water tub 20 through the dewatering hole 31 of the washing tub 30 and into the drainage hose 60 through the drain pipe 61 and the drain valve 62. It flows in and is discharged to the outside.
  • the drain hose 60 is provided with a metal ion recovery unit 200.
  • the water discharged from the washing tub 30 passes through the inside of the metal ion recovery unit 200 when flowing through the drainage hose 60.
  • the drain pipe 61 is provided with a drain valve 62 that opens and closes electromagnetically.
  • An air trap (not shown) is provided at a location on the upstream side of the drain valve 62 of the drain pipe 61, and a pressure guiding pipe 70 extends from the air lap.
  • a water level switch 71 Connected to the upper end of the pressure guiding pipe 70 is a water level switch 71 that is a means for detecting the amount of water in the washing tub 30 or the water tub 20.
  • a control unit 80 is arranged on the front side of the exterior 10.
  • the control unit 80 is placed under the top plate 11 and receives an operation command from the user through the operation Z display unit 81 provided on the top surface of the top plate 11 to the drive unit 40, the water supply device 2, and the like. Issue operation command. Further, the control unit 80 issues a display command to the operation Z display unit 81.
  • FIG. 3 is a schematic cross-sectional view of the metal ion water generating means.
  • 3A is a horizontal schematic cross-sectional view
  • FIG. 3B is a vertical schematic cross-sectional view.
  • the metal ion water generating means 90 provided in the water supply device 2 shown in FIG. 2 is formed of an insulating material such as a synthetic resin.
  • plate-like silver electrodes 92a and 92b are arranged so as to be substantially parallel with a distance of about 5 mm.
  • the silver electrode has a size of 20mm x 50mm and a thickness of about lmm It is.
  • the silver electrodes 92a and 92b are respectively formed with connection terminals 93a and 93b.
  • the connection terminals 93a and 93b are connected to the control unit 80 by wiring (not shown).
  • the case 91 is provided with an inlet 94 through which water flows in and an outlet 95 through which water flows out.Water flows from the inlet 94 into the case 91, and water flows out of the case 91 through the outlet 95. Can be spilled. That is, water flows parallel to the longitudinal direction of the silver electrodes 92a and 92b.
  • a voltage is applied between the silver electrodes 92a and 92b by the control unit 80 in a state where the silver electrodes 92a and 92b are immersed in water.
  • Ag ⁇ Ag + + e_ reaction occurs, and silver ions (Ag +) are eluted in water. If silver ions (Ag +) continue to elute, the silver electrode on the anode side will wear out.
  • Silver ions eluted from the silver electrode 92a or the silver electrode 92b exhibit an excellent bactericidal and antifungal effect. Accordingly, silver ion water which is metal ion water acts as antibacterial water having antibacterial properties.
  • antibacterial or “sterilization” as used herein includes inactivating a virus that can be obtained only by sterilizing and antibacterial bacteria and fungi.
  • the fact that the virus is inactivated by silver ions is described in “Silver Ion Water LA Krissky's New Japan Spear Forging Association (Publishing) 1993”!
  • control unit 80 periodically performs polarity reversal of the applied voltage between the silver electrodes 92a and 92b of the metal ion water generating means 90 to adhere the scale to the silver electrodes 92a and 92b. And only one silver electrode is prevented from being consumed.
  • the metal electrode other than the silver electrode may be any metal that can elute metal ions having antibacterial properties. Specifically, copper, an alloy of silver and copper, zinc, or the like can be selected. Silver ions eluting from the silver electrode, copper ions eluting from the copper electrode, or zinc ions eluting from the zinc electrode Lead ion exhibits an excellent bactericidal and antifungal effect. Silver ions and copper ions can be eluted simultaneously from an alloy of silver and copper. Further, the anode may be an electrode that elutes metal ions, and the cathode may be an electrode that does not elute metal ions.
  • the electrode configuration is composed of two or more electrode covers, all may be metal electrodes made of the same material, either one is a metal electrode, and the other electrode is a non-metal electrode (for example, carbon An electrode, a conductive plastic electrode, or the like) or a good electrode.
  • metal electrodes that are difficult to ionize for example, titanium electrodes, platinum electrodes that are noble metals, gold electrodes, etc.
  • Constant current control is the control to maintain a constant current value regardless of the resistance value change between the electrodes. For example, bubbles are generated on the electrode surface or the distance between the electrodes changes due to electrode vibration. Since the resistance value between the electrodes changes constantly, it is difficult to make it completely constant, and some current fluctuation occurs. Also, due to the extremely high resistance value, a constant current may not flow at a voltage within the allowable range of the circuit, and the current may decrease. Here, even if this happens, the voltage is changed in response to the change in the resistance value between the electrodes. When the resistance value increases, the voltage is increased, and when the resistance value decreases, the voltage is decreased. Control that stabilizes the current value between the electrodes is constant current control.
  • the silver ion concentration of silver ion water can be controlled by the amount of electricity flowing between the electrodes and the amount of water.
  • the amount of water in the metal ion water generating means 90, the amount of water may be 20 LZmin and the current may be 29 mA.
  • the amount of water In order to obtain 600ppb of silver ion water, the amount of water should be 3LZmin and the current 29mA.
  • a desired silver ion concentration can be obtained by flowing a predetermined current through the silver electrodes 92a and 92b through water having a constant flow rate.
  • the flow rate can be almost fixed by the structure of the water supply valve.
  • By supplying a constant current almost constant silver ion water can be generated.
  • Silver ions, copper ions, and zinc ions are not irritating to the human body and have low toxicity.
  • metal ions and their compounds are difficult to volatilize, volatilization is promoted by raising the temperature or ventilating, such as hypochlorous acid, and the effects of antibacterial and mildewproofing are lost. The effect can be maintained over a long period of time without causing an unpleasant smell or unpleasant odor.
  • elution or non-elution of silver ions which are metal ions
  • the current and voltage application time are controlled as described above.
  • a metal ion-containing substance having a structure capable of gradual release or dissolution of metal ions by immersing in washing water may be used in addition to electrolysis.
  • the metal ion-containing substance include zeolite, silica gel, glass, calcium phosphate, zirconium phosphate, silicate, titanium oxide, whisker, ceramics, etc. that carry metal ions. And the like.
  • washing water refers to all fluids used in a washing machine, such as water used for easy washing and cooling water for dehumidification.
  • the metal ions added to the washing water exhibit a sterilizing action during washing or adhere to the inside of the laundry or the washing machine 1 as the washing machine 1 operates. Demonstrate antibacterial action. However, some of them flow into the drainage hose 60 via the drainage pipe 61 and drainage valve 62 that do not adhere anywhere. The metal ions flowing into the drain hose 60 flow into the metal ion recovery unit 200, and the metal ions are removed. The drainage is then discharged to the sewage outlet.
  • FIG. 4 is a flowchart of the entire washing process of the washing machine 1.
  • step S001 a laundry washing process is performed.
  • the main water supply valve 50a is opened, and water is poured into the washing tub 30 through the main water supply pipe 52a and the water supply port 53.
  • the detergent is also put into the washing tub.
  • the drain valve 62 is closed.
  • the water level switch 71 detects the set water level
  • the water supply valve 50a is closed.
  • Pulsator 33 rotates in reverse, allowing the laundry to become familiar with the water.
  • the motor 41 rotates the pulsator 33 in a predetermined pattern to form a main water flow for washing in the washing tub 30. Laundry of laundry is performed by this main water flow.
  • the brake is applied to the dewatering shaft 44 by the brake device 43, and the washing tub 30 does not rotate even if the laundry and washing water move.
  • the pulsator 33 reverses in small steps to loosen the laundry so that the laundry is distributed in a balanced manner in the washing tub 30. This prepares for the spin-drying of the washing tub 30.
  • step S002 a draining process is performed.
  • the drain valve 62 is opened.
  • the drain valve 62 remains open during the drainage and dewatering processes.
  • step S003 an intermediate dehydration step is performed. After a relatively low-speed dehydration operation, a high-speed dehydration operation is performed. Stop the power supply to the motor 41 and apply brakes. The clutch mechanism 42 and the brake mechanism 43 are switched when most of the washing water in the washing tub 30 and the washing power is drained. The switching timing of the clutch mechanism 42 and the brake mechanism 43 may be before the start of drainage or at the same time as drainage. Next, the motor 41 rotates the dehydrating shaft 44. Thereby, the washing tub 30 performs the dehydration operation. At this time, the pulsator 33 also rotates together with the washing tub 30.
  • the washing tub 30 When the washing tub 30 rotates, the laundry is pressed against the inner peripheral wall of the washing tub 30 by centrifugal force. The washing water contained in the laundry also collects on the inner surface of the peripheral wall of the washing tub 30. At this time, the washing water that has received the centrifugal force also releases the dewatering hole 31 force of the washing tub 30. The washing water discharged from the dewatering hole 31 is hit against the inner surface of the water tank 20 and flows down to the bottom of the water tank 20 along the inner surface of the water tank 20. The washing water that has flowed down to the bottom of the water tank 20 is discharged outside the exterior 10 through the drain pipe 61 and the drain hose 60 that follows.
  • step S004 the first rinsing process is performed.
  • the main water supply valve 50a opens and the metal ion water generating means 90 generates silver ions by electrolysis.
  • the water containing metal ions is poured into the washing tub 30 through the main water supply pipe 52a and the water supply port 53. If metal ions are not supplied to the laundry, electrolysis should not be performed with the metal ion water generating means 90!
  • the sub water supply valve 50b is opened, and water is supplied through the sub water supply pipe 52b and the water supply port 53 in parallel.
  • a finishing agent such as a softening agent, insert the finishing agent.
  • the motor 41 rotates the pulsator 33 in a predetermined pattern according to the setting of the user, and forms a main water flow for rinsing in the washing tub 30.
  • the main water stream stirs the laundry and rinses the laundry.
  • the dehydrating shaft 44 is braked by the brake mechanism 43, and the washing tub 30 does not rotate even if the rinse water and the laundry move.
  • the pulsator 33 moves in small steps to loosen the laundry.
  • the laundry is distributed in the washing tub 30 in a well-balanced manner to prepare for the dewatering process.
  • the “reservoir rinse” is performed in which the rinse water is stored in the washing tub 30 and is rinsed. It is also possible to perform a “shower rinse” in which water is poured into the laundry from the water supply port 53 while rotating the tank 30 at a low speed! /.
  • step S005 a draining process is performed in the same manner as in step S002.
  • step S006 an intermediate dehydration step is performed as in step S003.
  • step S007 a final rinsing process is performed. Rub as in step S004.
  • step S008 a dehydration step is performed.
  • the drain valve 62 is opened.
  • the drain valve 62 remains open during the dehydration process.
  • a high speed dewatering operation is performed. Stop the power supply to the motor 41 and apply brakes.
  • the clutch mechanism 42 and the brake mechanism 43 are switched. The switching timing of the clutch mechanism 42 and the brake mechanism 43 may be the same as before the start of drainage or at the same time as drainage.
  • the motor 41 rotates the dehydrating shaft 44. As a result, the washing tub 30 performs the dehydration operation.
  • the pulsator 33 also rotates with the washing tub 30.
  • the washing tub 30 rotates, the laundry is pressed against the inner peripheral wall of the washing tub 30 by centrifugal force. And laundry The washing water contained in the water also collects on the inner wall of the washing tub 30.
  • the washing water that has received the centrifugal force is discharged from the dewatering hole 31 of the washing tub 30.
  • the washing water discharged from the dewatering hole 31 is hit against the inner surface of the water tank 20 and flows down to the bottom of the water tank 20 along the inner surface of the water tank 20.
  • the washing water that has flowed down to the bottom of the water tank 20 is discharged to the outside of the exterior 10 through the drain pipe 61 and the drain hose 60 that follows.
  • the drain valve 62 is opened in the draining process and the dehydrating process, and the water in the washing tub 30 flows into the drain hose 60 through the drain pipe 61 and the drain valve 62.
  • a metal ion recovery unit 200 is disposed outside the exterior 10 of the washing machine 1.
  • the washing machine is equipped with a metal ion recovery unit and the recovered metal ions are valuable metals such as silver and copper
  • the manufacturer or disposal contractor By collecting the washing machine, etc., valuable metals can be collected, and valuable metals can be sold or reused. For this reason, it is possible to bring about cost advantages in collecting the washing machine, promote the collection and recycling of the washing machine, and suppress illegal disposal.
  • FIG. 5 is a diagram showing the metal ion recovery unit attached to the drain hose. Fig 5
  • FIG. 1 shows a state where the metal ion recovery unit is attached to the drain hose.
  • Figures 5 (B) and (C) show the interior of the metal ion recovery unit.
  • the metal ion recovery unit 200 is installed in the middle of the drainage hose 60.
  • the connecting part between the drainage hose 60 and the metal ion recovery unit 200 can be inserted and removed.
  • the washing machine 1 such as the exterior 10 is disassembled, and the metal ion recovery unit 200 is taken out, or the washing machine 1 including the metal ion recovery unit 200 is included. Need to be crushed.
  • the metal ion recovery unit 200 is taken out by disassembling the washing machine main body by extracting a specific washing machine (washing machine equipped with a metal ion recovery unit) from the recycling process of the washing machine. Since it is necessary to carry out disassembly and crushing in the work, it is not realistic. In particular, the exterior of the washing machine can withstand vibration during washing, and the water tank 20 and motor 41 can be suspended. Since it is suspended by the member 21, it is necessary to support its weight, so it is made firmly and is difficult to disassemble.
  • a specific washing machine washing machine equipped with a metal ion recovery unit
  • the resulting shredder dust may contain something other than the metal ion recovery unit 200.
  • the rate decreases and the recycling efficiency decreases.
  • the metal ion recovery unit 200 when the metal ion recovery unit 200 is installed in the drainage hose 60 outside the exterior 10 of the washing machine in this way, when the washing machine 1 is recovered and recycled, the washing machine 1 such as the exterior 10
  • the metal ion recovery unit 200 can be collected without disassembling the main body, which makes it easy to recover the metal.
  • the metal ion recovery unit 200 that does not interfere with the recycling process can be collected, and the recovered metal can be collected. Can be reused.
  • the method of attaching the metal ion recovery unit 200 to the drain hose 60 is not limited to the insertion type shown in FIG. Since the metal ion recovery unit 200 may be easily removed from the washing machine 1 main body, for example, a screw type may be used. Also, at least a part of the drain hose may be made of a soft material so that it can be cut with a cutter.
  • the drain hose 60 that is detachable from the metal ion recovery unit 200 may be the drain hose 60 on the upstream side of the metal ion recovery unit 200 only.
  • the downstream side of the force drainage hose 60 that is to be collected together with the metal ion recovery unit 200 should be formed of an organic substance such as resin on the downstream side of the metal ion recovery unit 200.
  • the metal can be separated by burning the metal ion recovery unit 200 and the drain hose 60 together. When the separation of the metal from the metal ion recovery unit 200 is performed by mixing it in the metal purification process, the organic matter can be easily removed. Therefore, the metal can be effectively removed by forming the metal ion recovery unit 200 with the organic matter. It can be recovered.
  • the connecting portion between the metal ion recovery unit 200 and the washing machine 1 needs to withstand the vibration of the washing machine 1, so that the plug-in type It is difficult to make such a structure that can be easily attached and detached.
  • the metal ion recovery unit 200 is installed in the middle of the drain hose 60, and the upstream side is formed of a soft material. For example, the vibration of the washing machine is not transmitted to the metal ion recovery unit 200, and the structure can be easily attached and detached.
  • the metal ion recovery unit can be collected without disassembling the washing machine body.
  • the metal ion recovery unit 200 has an adsorbent 201 supported therein, and can recover metal with the adsorbent 201.
  • a recess 202 is formed on the inner peripheral wall of the metal ion recovery unit 200, and particles of the adsorbent 201 are stored in the recess 202. ing.
  • a filter 203 is attached to the opening of the concave portion 202 so that silver ions pass through but prevent entry of lint and the like.
  • a plurality of recesses 202 may be provided.
  • a single recess 202 may be provided.
  • the adsorbent 201 may be kneaded into rosin or the like. In that case, since only the adsorbent on the surface acts, it is desirable to roughen the surface of the inner wall of the metal ion recovery unit 200 with plasma or to make it porous by foaming or the like. Further, it may be mixed with paint or the like and adhered to the surface of the inner wall of the metal ion recovery unit 200.
  • adsorbent 201 for example, a synthetic adsorbent such as a polysiloxane compound having thiol as a functional group can be used. If the adsorbent has a thiol group on the surface of the adsorbent, it is very easy to bind to the silver ion force, so the silver ion reacts with the ion in the thiol group as shown in the following formula. Silver ions are adsorbed on the adsorbent 201.
  • Water used for washing such as tap water, contains many metal ions in addition to metal ions added as finishing substances.
  • Metal ions added for antibacterial purposes are usually contained in washing water at a concentration of about 50 gZL to 10 mgZL, but general tap water is sodium ions, calcium ions, potassium at a concentration of several tens of mgZL. It often contains ions and magnesium ions.
  • the adsorbent that adsorbs such metal ions contained in tap water will be saturated without sufficiently adsorbing the metal ions to be recovered, added as a finishing substance. For this reason, the life of the adsorbent is shortened, and it is necessary to provide a large amount of adsorbent in the metal ion recovery unit. Therefore, the effect of the metal ion recovery unit can be maintained by using an adsorbent that is selective for the metal ions added as a finishing substance.
  • Synthetic adsorbents attached with functional groups containing thio are particularly excellent in adsorption and selectivity for precious metals such as silver and copper, and are added to washing water in a washing machine. This is particularly effective when the metal ion is the above metal ion.
  • Antibacterial silver ions and Z or antifungal copper ions are often added as laundry finishing agents. Therefore, by using an adsorbent that selectively adsorbs these ions, metal ions added during washing can be efficiently recovered.
  • adsorbents may be used.
  • synthetic adsorbent for example, zeolite or cation exchange resin can be used.
  • reduction-deposition-adsorption may be performed by a microorganism such as a metal ion-reducing bacterium or a metal ion reductase.
  • a metal ion-reducing bacteria bacteria that selectively reduce silver ions to precipitate silver, such as those listed in PNAS96 (24): 13611-13614 “Silver—based crystalline nanoparticles, microbially fabricatedj”. is there.
  • reduction and precipitation may be performed using a metal lower than the target metal.
  • a metal lower than the target metal For example, silver is nobler than iron, so when iron with a large surface area such as steel wool is brought into contact with a liquid containing these ions, the following reaction occurs and silver is recovered on the surface of steel wool: be able to.
  • This method is more precious than iron ions such as silver ions and copper ions. This is a selective recovery method for ions.
  • metal ions added at the time of washing are used by using a recovery method that can selectively recover added metal ions compared to metal ions contained in general tap water. Can be efficiently recovered.
  • an electrical method in which metal is deposited on the cathode by electrolysis may be used.
  • a voltage is applied between the electrodes, and the metal is deposited by a cathodic reaction as shown in the following formula.
  • the metal ion recovery unit 200 that has adsorbed silver as described above is removed when the washing machine 1 is collected, and the metal in the metal ion recovery unit 200 is recycled.
  • a recycling method for example, organic substances collected together with the metal ion recovery unit 200 are burned and removed, and the residue is dissolved at a high temperature, and electrolytic scouring is performed. Also, it can be scoured by mixing it into the normal scouring process such as copper or silver ore.
  • An organic substance such as an ion exchange resin or reductase is used as an adsorbent, and the housing of the metal ion recovery unit 200 is also formed of the resin, so that the metal ion recovery unit 200 can be recovered when burned. Only metal can be obtained.
  • the metal from the metal ion recovery unit 200 is separated by mixing in the metal refining process, the organic matter can be easily separated from the metal by burning, so the metal ion recovery unit 200 is formed of the organic matter. It is effective.
  • FIG. 6 is a diagram showing a schematic cross section of a drainage path of a washing machine as another embodiment of the present invention. Except for the drainage route, the washing machine of the second embodiment has the same configuration as the washing machine of the first embodiment shown in FIG.
  • the control unit 80 includes a timing unit, and the drainage starting force also measures time. The completion of drainage is detected by the water level switch.
  • the drainage path of this washing machine is provided with a three-way valve 63, and the drainage path is a first drainage path provided with a metal ion recovery unit 200 in the middle through the three-way valve 63.
  • the first drain hose 601 and the second drain into which the waste water from the washing machine flows directly into the sewage It branches off to the second drain hose 602 as a route.
  • the control unit 80 By controlling the three-way valve 63 by the control unit 80, the drainage can flow to one or both of the first drainage hose 601 and the second drainage hose 602.
  • the arrows in Fig. 6 indicate the flow of water.
  • FIG. 6 (A) shows a state where the three-way valve 63 is closed.
  • FIG. 6 (B) shows a state in which the three-way valve 63 is switched so that drainage flows only to the first drainage hose 601 having the metal ion recovery unit 200.
  • FIG. 6 (C) shows a state in which the three-way valve 63 is switched so that the drainage flows only to the second drainage hose 602 that does not have the metal ion recovery unit 200.
  • FIG. 6D shows a state in which the three-way valve 63 is switched so that the drainage flows through both the first drainage hose 601 and the second drainage hose 602.
  • the sequence of a general washing machine is roughly the three-step power of "washing", "rinsing", and "dehydration".
  • a draining process and a dehydrating process are often performed, and special processes are performed.
  • the supply efficiency of metal ions can be improved by supplying the metal ions to the wash water in a later process such as the final rinse process.
  • metal ions are supplied to the laundry together with water only in the final rinsing process (step S007) in Fig. 4, and the washing process (step S001), rinse 1 (step In step S004), water that does not contain metal ions is supplied.
  • the water is drained through the second drain hose 602 that does not have the metal ion recovery unit 200, and after the final rinse process. Only the first dehydration process is drained through the first drainage hose 601. In this way, metal ions can be recovered in the metal ion recovery unit 200.
  • the washing effect is enhanced by applying mechanical force to the laundry by deforming the laundry or bringing the laundry into contact with each other. For this reason, in the washing process of step S001, waste thread may be generated from the laundry.
  • the metal ion recovery unit 200 is effective to increase the contact efficiency between the waste water and the adsorbent in order to improve the adsorption rate of the metal ions from the waste water. For this purpose, it is necessary to form the metal ion recovery unit 200 in a filter shape or to provide a protrusion inside. But, In such a structure, clogging may occur if the wastewater from the washing machine contains lint.
  • the drain hose is branched into a first drain hose 601 having the metal ion recovery unit 200 and a second drain hose 602 not having the metal ion recovery unit 200.
  • wastewater when metal ions are added as a finish substance passes through the first drain hose 601 having the metal ion recovery unit 200, and metal ions are not added as finish substances. Drainage can pass through the second drainage hose 602 without the metal ion recovery unit 200. Water from the washing process, which contains a lot of lint and does not contain metal ions, does not pass through the metal ion recovery unit 200, so that clogging of the first drain hose 601 with lint etc. is prevented and metal ions are prevented. It is possible to maintain the adsorbing power.
  • the adsorbent 201 is a rosin-based resin
  • the capacity as the adsorbent decreases, but the first drainage hose 601 and the first By properly using the second drain hose 602, it is possible to prevent a decrease in the adsorbing power of the adsorbent 201 due to the adsorption of the surfactant.
  • FIG. 7 is a diagram showing a schematic cross section of a drainage hose provided with a filter.
  • a filter 204 may be provided on the upstream side of the metal ion recovery unit 200.
  • the drainage hose that flows drainage can flow drainage to one or both of the first drainage hose 601 and the second drainage hose 602 by switching the opening and closing of the first valve 64a and the second valve 64b. It can be configured.
  • the filter 204 comes into contact with the wastewater drained through the second drainage hose 602, and is attached to the filter 204.
  • the worn lint can be washed away with the drainage of the second drainage hose 602, and the filter 204 can be prevented from being clogged.
  • FIG. 8 is a flowchart showing a general draining process in a conventional washing machine.
  • the main body that makes the predetermined judgment is the control unit 80.
  • step S009 Water in the rinsing tank 30 is discharged to the drain hose 60 through the drain pipe 61 and drain valve 62.
  • step S010 check if the drainage is complete. If completion of drainage is not detected, drainage continues. If the completion of drainage is detected, the drainage valve 62 is closed and the drainage process is completed.
  • Fig. 9 is a flowchart of a process of draining water containing metal ions of a washing machine according to another embodiment of the present invention.
  • the main body that makes the predetermined judgment is the control unit 80.
  • step S101 When water containing metal ions is drained, first, in step S101, the three-way valve 63 is brought into the state shown in FIG. 6 (B). By doing so, the wastewater flows through the first drainage hose 601 having the metal ion recovery unit 200. Next, in step S102, the drain valve 62 is opened to start draining.
  • step S103 it is confirmed whether or not drainage is completed. If drainage is completed, the process proceeds to step S104 and the drainage process is terminated. If drainage is not completed, the process proceeds to step S105, and it is confirmed whether or not a predetermined time has elapsed. If the predetermined time has not elapsed, the process returns to step S103. If the predetermined time has elapsed, it means that it has been detected that drainage has not been completed, so the process proceeds to step S106, and the three-way valve is set to the state shown in FIG. 6 (D). By doing so, drainage flows through both the first drainage hose 601 and the second drainage hose 602 as another drainage path. Then, it progresses to step S107, and if drainage is completed, it will progress to step S104 and will complete
  • FIG. 10 does not include metal ions of a washing machine according to another embodiment of the present invention. It is a flowchart of the drainage process of water.
  • step S201 When draining water that does not contain metal ions, first, in step S201, the three-way valve 63 is brought into the state shown in Fig. 6C. By doing so, the wastewater flows through the second drainage hose 602 that does not have the metal ion recovery unit 200. Next, in step S202, the drain valve 62 is opened, and drainage is started.
  • step S203 it is confirmed whether or not drainage is completed. If drainage is completed, the process proceeds to step S204, and the drainage process is terminated. If drainage is not completed, the process proceeds to step S205, and it is confirmed whether or not a predetermined time has elapsed. If the predetermined time has not elapsed, the process returns to step S203. If the predetermined time has elapsed, it means that it has been detected that drainage has not been completed. Therefore, the process proceeds to step S206, and the three-way valve is set to the state shown in FIG. 6 (D). By doing so, drainage flows through both the second drainage hose 602 and the first drainage hose 601 as another drainage path. Proceed to step S207, and if drainage is complete, proceed to step S204 to end the drainage process. If drainage is not completed, the process returns to step S207.
  • the drainage clogging is detected by detecting that drainage is not completed even after a predetermined time has elapsed. If a drainage clog is detected, drainage can be carried out using another drainage channel. As a result, washing can be completed even if drainage clogging occurs. At this time, if an error is notified during washing or at the end of washing, the user can be encouraged to respond.
  • FIG. 11 is a diagram showing an overall cross section of a washing machine as a third embodiment of the present invention.
  • This washing machine is a washing machine with a holeless tub.
  • the washing tub 30b has a taper-shaped peripheral wall that gradually spreads upward as it is directed. This peripheral wall has no opening for allowing liquid to pass therethrough except for a plurality of dewatering holes 31 arranged in an annular shape at the uppermost portion thereof.
  • the metal ion recovery unit 200 is provided in the drainage path from the outer tub 20b. Furthermore, for example, when metal ion treatment is performed at the time of final rinsing, the water at the time of rinsing is not drained before dehydration, and the washing tub 30b is rotated and discharged from the dehydration hole 31. Wastewater containing can be passed through the metal ion recovery unit 200.
  • the force of the intermediate dewatered water after the washing process also passes through the metal ion recovery unit 200.
  • This water is the pole contained in the laundry. It is a little water, and it is difficult for the yarn waste to rise along the peripheral wall of the washing tub 30b and pass through the dewatering hole 31. Don't be.
  • a door 205 is provided in part of the exterior 112. Through the door 205, the metal ion recovery unit 200 can be removed. Filter 204 can also be maintained from this door 205!
  • the present invention is not limited to the fully automatic washing machine of the type described in the above embodiment, but also a horizontal drum (tumbler type), an oblique drum, a dryer combined use, or a two-layer type. It can be applied to a type of washing machine.
  • the washing machine of the present invention can collect metal ions supplied to water used for washing by applying the washing machine to a metal structure capable of imparting metal ions to a textile structure such as clothing. .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

Machine à laver permettant de récupérer des ions métalliques présents dans l'eau utilisée dans le lavage. La machine à laver (1) comprend des moyens de génération d'eau ionisée métallique (90) pour ajouter des ions métalliques à l'eau ; et une unité de récupération d'ion métallique (200) pour récupérer des ions métalliques de l'eau, disposée de façon à être en contact avec l'eau contenant des ions métalliques qui ont été ajoutés par les moyens de génération d'eau ionisée métallique (90). Selon le procédé de récupération d'ions métalliques dans la machine à laver (1), des ions métalliques sont récupérés de l'eau en disposant, dans la machine à laver (1) pouvant appliquer des ions métalliques à une structure en fibre, l'unité de récupération d'ions métalliques (200) de sorte qu'elle soit en contact avec l'eau utilisée dans le lavage.
PCT/JP2007/054641 2006-07-26 2007-03-09 Machine à laver et procédé de récupération d'un ion métallique dans celle-ci WO2008012963A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2007800278299A CN101495695B (zh) 2006-07-26 2007-03-09 洗衣机以及该洗衣机中的金属离子回收方法
US12/305,607 US20100005838A1 (en) 2006-07-26 2007-03-09 Washing machine and method for recovering metal ions in the same
EP07738126A EP2045389A4 (fr) 2006-07-26 2007-03-09 Machine à laver et procédé de récupération d'un ion métallique dans celle-ci

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JP2006-202928 2006-07-26
JP2006202928A JP4086882B2 (ja) 2006-07-26 2006-07-26 洗濯機

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WO2008012963A1 true WO2008012963A1 (fr) 2008-01-31

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EP (1) EP2045389A4 (fr)
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JP4821796B2 (ja) * 2008-04-17 2011-11-24 パナソニック株式会社 洗濯機
CN101991870B (zh) * 2010-09-22 2013-10-30 蒋明 一种洗衣机用银离子发生器
CN103540179A (zh) * 2012-07-09 2014-01-29 钱陈慧贤 无释出的抗菌涂层以及含有该涂层的制品
US11618696B2 (en) 2013-08-15 2023-04-04 Applied Silver, Inc. Antimicrobial batch dilution system
US10640403B2 (en) 2013-08-15 2020-05-05 Applied Silver, Inc. Antimicrobial batch dilution system
US10000881B2 (en) 2013-12-06 2018-06-19 Applied Silver, Inc. Method for antimicrobial fabric application
CN106283494B (zh) * 2015-06-24 2019-06-18 松下家电研究开发（杭州）有限公司 带衣物状态修正功能的洗衣控制方法
US20170050870A1 (en) 2015-08-21 2017-02-23 Applied Silver, Inc. Systems And Processes For Treating Textiles With An Antimicrobial Agent
CN109414020A (zh) 2016-05-12 2019-03-01 应用银股份有限公司 将金属离子分配到洗涤系统中的制品和方法
CN110113946A (zh) 2016-10-31 2019-08-09 应用银股份有限公司 向分批式洗衣机和烘干机中分配金属离子
WO2018160708A1 (fr) 2017-03-01 2018-09-07 Applied Silver, Inc. Systèmes et procédés pour traiter des textiles avec un agent antimicrobien
CN110863311B (zh) * 2019-11-25 2021-12-17 福建省宏港纺织科技有限公司 一种高效的染整布料脱水装置
JP7202764B1 (ja) 2022-04-28 2023-01-12 株式会社富士計器 給水ユニット

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CN101495695A (zh) 2009-07-29
EP2045389A1 (fr) 2009-04-08
JP4086882B2 (ja) 2008-05-14
EP2045389A4 (fr) 2012-04-25
JP2008029376A (ja) 2008-02-14
US20100005838A1 (en) 2010-01-14

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