JP2007130335A - Dry-cleaning apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dry-cleaning apparatus capable of prolonging the replacement period of a filter. <P>SOLUTION: The dry-cleaning apparatus for performing dry-cleaning to wash laundry in a treatment tub with a cleaning liquid consisting of a petroleum solvent stored in a tank, comprises: a plurality of dust removers storing a bag made of stainless or glass fibers; a pump having a flowmeter for the cleaning liquid; a filter including a pressure meter and having such a structure that a storage container, where a plurality of bags filled with activated carbon are piled, is covered with the bag made of the stainless or glass fibers; and a centrifugal dust collector for collecting dirt in the dust removers or the filter by reverse cleaning, where the bag made of the stainless or glass fibers is attached on the inside of a rotary tub. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a dry cleaning device having a longer filter replacement period.

In general, a petroleum solvent is used as a cleaning liquid for a dry cleaning apparatus in order to remove oil-soluble dirt. Some detergent and water may be added to this cleaning solution to remove water-soluble stains. If the dirt of the laundry settles in the tank of the washing liquid, it will rot and give off a rot odor, and will adhere to the laundry and significantly reduce the quality of the finished product. For this reason, the dry cleaning device is usually equipped with a paper filter of about 200 mesh so as to keep the cleaning liquid clean. However, since the paper filter has a short replacement cycle and the cost for processing as industrial waste is high, a filter having a long replacement cycle is desired. Note that 200 mesh indicates that there are 200 eyes per inch, and the size of the eyes (opening) is about 80 microns although it depends on the thickness of the fibers.
JP-A-6-91093

  An object of the present invention is to provide a dry cleaning apparatus capable of extending the filter replacement cycle.

  The dry cleaning apparatus according to the present invention includes a plurality of dust removers containing stainless steel or glass fiber bags in dry cleaning for washing laundry in a treatment tank with a cleaning liquid composed of a petroleum-based solvent stored in a tank; A pump equipped with a flow meter for the cleaning liquid; a filter having a structure in which a storage container in which a plurality of bags filled with activated carbon are stacked is covered with a bag made of stainless fiber or glass fiber, and equipped with a pressure gauge; A centrifugal-type dust collector in which a bag made of stainless fiber or glass fiber is attached to the inside of the rotary tank and the dirt of the dust remover or the filter is collected by back washing; And

  The filtering accuracy of the stainless fiber or glass fiber bag of the dust remover is coarser than the filtering accuracy of the stainless fiber or glass fiber bag of the filter, and the filtering accuracy of the filter is the filter of the activated carbon. Rougher than accuracy is preferred.

  It is preferable that an active water container in which non-photocatalytic ceramics and far-infrared ceramics are housed is provided on the discharge side of the filter.

  According to the dry cleaning device of the first aspect of the present invention, the filter of the dust remover and the filter is made of a stainless fiber or glass fiber bag, so that the replacement cycle can be made longer than that of a paper bag. In addition, the dust remover and the filter are back-washed to remove the filter dirt, and the dirt is collected in the dust collector. Therefore, the period of use of the filter of the dust remover and the filter can be further extended.

  According to claim 2 of the present invention, the stainless steel fiberglass or glass fiber bag of the dust remover supplements insoluble relatively large dirt. The stainless steel or glass fiber bag of the filter traps relatively small dirt. Therefore, efficient filtering can be performed. Even if the first dust remover is clogged with lint or the like, it can be switched to the second dust remover. Accordingly, the influence on the filter is reduced, and the filter of the filter can be used for a longer time. In addition, the stainless fiber or glass fiber bag in the filter traps relatively small dirt and reduces the influence on the activated carbon that catches fine dirt, so that the life of the activated carbon can be extended.

  According to claim 3 of the present invention, the rot odor of water can be deodorized by the non-catalytic ceramics. Moreover, water can be activated by far-infrared ceramics.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a block diagram of a dora cleaning apparatus according to the present invention. The dry cleaning apparatus 100 includes a tank 1 in which a cleaning liquid 80 containing a petroleum solvent as a main component is stored, and a treatment tank 2 for washing laundry. The cleaning liquid 80 is cleaned by the purification device 90. The purification device 90 includes two dust removers 3 and 4, a pump 6 provided with a flow meter 5 for cleaning liquid, a filter 8 provided with a pressure gauge 7, a water heater 9, and a dust collector 10. Each is connected by piping and a valve is provided in place. The dust removers 3 and 4 remove dirt from the laundry contained in the cleaning liquid in the tank 1, and two units are provided so as to be switchable. The filter 8 is configured to remove finer dirt than the dust removers 3 and 4. In addition, 1-5% of water and some detergent are added to the washing | cleaning liquid 80 in order to remove water-soluble dirt.

  Generally, laundry stains include water-soluble stains such as protein and urea, oil-soluble stains such as sebum and edible oil, and insoluble stains such as dust and lint. When clothes are worn for a day, 5 to 6 mg of protein, 20 to 46 mg of fat, and 25 to 46 mg in total are attached per 1 g of cloth of the clothes. Therefore, when a 20 kg shirt is washed in total, dirt of 500 g (= 25 mg × 20 kg × 1 / g) to 920 g (= 46 mg × 20 kg × 1 / g) appears at a time. Not only these stains but also other stains need to be removed from the cleaning liquid and kept clean.

  In order to pump up the cleaning liquid 80 from the tank 1 to the treatment tank 2, the pump 6 is operated to supply the cleaning liquid 80 to the tank 1 → the valve 30 → the dust remover 3 → the valve 36 → the flow meter 5 → the pump 6 → the valve 42 → the filter 8. → Valve 44 → Water heater 9 → Valve 46 → Send through treatment tank 2. When the dust remover 3 is switched to the dust remover 4, the tank 1 → the valve 31 → the dust remover 4 → the valve 37 → the flow meter 5 → the pump 6 → the valve 42 → the filter 8 → the valve 44 → the active water device 9 → the valve 46 → Send by route of processing tank 2 In any case, the cleaning solution 80 in the treatment tank 2 is returned to the tank 1 via the valve 41 at an appropriate time. In order to purify the cleaning liquid 80 of the tank 1 with the purifier 90, for example, the cleaning liquid 80 is tank 1 → valve 30 → dust remover 4 → valve 37 → flow meter 5 → pump 6 → valve 42 → filter 8 → valve. 44 → Water heater 9 → Valve 45 → Tank 1 is circulated. It is assumed that valves other than necessary are closed.

  The dust removers 3 and 4 and the filter 8 can be backwashed. For the reverse cleaning of the dust remover 3, the cleaning liquid 80 is tank 1 → valve 31 → dust remover 4 → valve 37 → flow meter 5 → pump 6 → valve 34 → dust remover 3 → valve 32 → valve 38 → dust collector 10 → valve. 40 → The tank 1 is circulated in the reverse path. For the reverse cleaning of the dust remover 4, the cleaning liquid 80 is tank 1 → valve 30 → dust remover 3 → valve 36 → flow meter 5 → pump 6 → valve 35 → dust remover 4 → valve 33 → valve 38 → dust collector 10 → valve. 40 → The tank 1 is circulated in the reverse path. The reverse cleaning of the filter 8 uses the dust remover 3 and the cleaning liquid 80 is stored in the tank 1 → the valve 30 → the dust remover 3 → the valve 36 → the flow meter 5 → the pump 6 → the valve 43 → the filter 8 → the valve 39 → collection. It is circulated through the reverse path of the duster 10 → valve 40 → tank 1. As a result, dirt in the dust removers 3 and 4 and the filter 8 can be collected in the dust collector 10.

  FIG. 2 is a structural diagram of the dust remover. The dust removers 3 and 4 have a cylindrical shape with a diameter of 250 mm. An inflow pipe 52 is provided at the upper side of the main body 51, a discharge pipe 53 is provided at the bottom, and a lid 50 is provided at the top. There is a holding container 54 provided with a number of punch holes therein. A bag 91 serving as a filter is attached to the holding container 54 and fixed by tying the bottom with a string. The bag 91 may be made of stainless fiber or glass fiber. There are various filter openings ranging from about 1 mm to about 10 microns. As the dust removers 3 and 4, those having a large opening of 1 mm are employed. In terms of mesh, it is about 15 mesh. In other words, the filtering accuracy of the dust removers 3 and 4 was able to capture large dirt particles of 1 mm or more.

  Switching between the dust removers 3 and 4 is performed when the flow rate of the flow meter 5 is reduced by 10%. Thereby, the cleaning in the treatment tank can be executed without interruption. In the configuration of FIG. 1, since there is one pump 6, back washing cannot be performed during laundry processing, but when a dedicated pump is provided, dry cleaning processing and back washing can be performed simultaneously. It was confirmed that the dirt attached to the bag 91 made of stainless steel or glass fiber could be removed by applying reverse cleaning to the dust remover 3 or 4 whose dirt was severely lowered. The confirmation was determined to be good when the flowmeter 5 was returned to its normal value when operated using a duster that had been cleaned back.

  FIG. 3 is a structural diagram of the filter. The filter 8 has a cylindrical shape with a diameter of 400 mm, and is provided with an inflow pipe 57 at the upper side of the main body 56, a discharge pipe 58 at the bottom, and a lid 55 at the top. Inside, there is a storage container 82 for activated carbon 59. The activated carbon 59 is put in a bag and stacked. The storage container 82 is covered with a bag 92 made of stainless steel or glass fiber. The bag 92 employs a filter having an opening of 10 microns. In other words, the filtering accuracy was set to capture dirt particles of 10 microns or more. Such a filter can be made of stainless fiber or glass fiber, and is commercially available in the form of a nonwoven fabric.

The pressure gauge 7 was provided in the container of the filter 8, and when the internal pressure became as high as 0.15 to 0.2 MPa (1.5 to ² kgf / cm ² ), reverse cleaning was performed. The bag 92 made of stainless steel or glass fiber was used while applying backwashing for half a year, but it was able to be used without any problem by removing dirt. The activated carbon 59 may be coconut shell charcoal or charcoal. These activated carbons have many pores of about 0.1 to 0.01 microns, and dirt is adsorbed here. When the internal pressure became 0.15 to 0.2 MPa, the top activated carbon bag of the storage container 82 was removed, and a new activated carbon bag was replenished at the bottom.

  FIG. 4 is a structural diagram of the dust collector. The dust collector 10 has a cylindrical shape with a diameter of 300 mm, and is provided with an inflow pipe 62 at the top of a main body 61 having a lid 60 and a discharge pipe 63 at the bottom. There is a rotating tank 64 which is rotated by a motor 65 inside, and the inside of the rotating tank 64 is covered with a bag 93 made of stainless steel or glass fiber which is a filter. This filter was made of stainless fiber or glass fiber, which is the filter of the filter 8, and had the same specifications as the bag 92 and an opening of 10 microns. When the rotating tank 64 is rotated at a relatively low speed of about 200 rpm, a petroleum solvent having a high specific gravity appears outside due to centrifugal force, and dirt 81 having a low specific gravity is captured in the bag 93 made of stainless fiber or glass fiber. . It should be noted that when the motor 65 rotates and dust collection is performed, the backwashing cleaning liquid from the dust removers 3 and 4 or the filter 8 is not put into the dust collector 10. That is, a predetermined back cleaning solution was collected in the main body 61 and then processed in a lump.

  FIG. 5 is a structural diagram of the water heater. The water heater 9 has a cylindrical shape with a diameter of 100 mm, and is provided with an inflow pipe 68 at the upper side of the main body 67, a discharge pipe 69 at the bottom, and a lid 66 at the top. A non-photocatalytic ceramic 70 and a far-infrared ceramic 71 are housed inside. Thereby, deodorization and activation of the water added to the cleaning liquid 80 are performed. The non-photocatalytic ceramic 70 is obtained by fixing a titanium phosphate compound, which is a non-photocatalyst, to the ceramic surface. Far-infrared ceramics are ceramics containing germanium that emits far-infrared rays having a wavelength of about 10 microns at room temperature.

  The present invention extends the life of a filter of a dry cleaning device.

FIG. 1 is a block diagram of a dry cleaning apparatus according to the present invention. Example 1 It is a structural diagram of a dust remover. Example 1 It is a structural diagram of a filter. Example 1 It is a structural diagram of a dust collector. Example 1 It is a structural diagram of a water heater. Example 1

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tank 2 Processing tank 3, 4 Dust remover 5 Flow meter 6 Pump 7 Pressure gauge 8 Filter 9 Water collector 10 Dust collector 30, 31, 32, 33 Valve 34, 35, 36, 37 Valve 38, 39, 40, 41 Valve 42, 43, 44, 45, 46 Valve 50 Lid 51 Main Body 52 Inlet Pipe 53 Discharge Pipe 54 Holding Container 55 Lid 56 Main Body 57 Inlet Pipe 58 Discharge Pipe 59 Activated Carbon 60 Lid 61 Main Body 62 Inlet Pipe
63 Discharge pipe
64 Rotating tank
65 motor
66 Lid 67 Main body 68 Inflow pipe 69 Discharge pipe 70 Non-photocatalytic ceramics 71 Far-infrared ceramics 80 Cleaning liquid 81 Dirt 82 Storage container 90 Purifier 91 Stainless fiber or glass fiber bag (for dust remover)
92 Stainless fiber or glass fiber bag (for filter)
93 Stainless steel or glass fiber bags (for dust collectors)
100 Dry cleaning device

Claims (3)

In dry cleaning, in which the laundry in the treatment tank is washed with a cleaning liquid composed of a petroleum solvent stored in the tank,
A stainless steel or glass fiber storage container in which a plurality of dust removers containing stainless steel or glass fiber bags, a pump equipped with a flowmeter for the cleaning liquid, and a plurality of stacked bags filled with activated carbon are stacked. A filter with a pressure gauge and a stainless steel or glass fiber bag is attached to the inside of the rotary tank, and the dirt remover or the filter is cleaned back. A dry cleaning apparatus comprising a centrifugal dust collector that is collected by the above-described method.   The filtering accuracy of the stainless fiber or glass fiber bag of the dust remover is coarser than the filtering accuracy of the stainless fiber or glass fiber bag of the filter, and the filtering accuracy of the filter is the filter of the activated carbon. The dry cleaning apparatus according to claim 1, wherein the dry cleaning apparatus is rougher than accuracy.   The dry cleaning apparatus according to claim 1, wherein an active water container in which non-photocatalytic ceramics and far-infrared ceramics are stored is provided on a discharge side of the filter.

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