JPH06225989A - Underwater bucket type dry cleaning device and its underwater bucket type dry cleaning method - Google Patents

Abstract

(57) [Summary] [Object] To provide an underwater dry cleaning apparatus and an underwater dry cleaning method thereof which can use a flammable petroleum-based or tempene-based solvent. [Structure] Laundry buckets containing laundry are sequentially loaded into the laundry in the atmosphere, solvent supply position below the water surface of the water tank, solvent discharge position, rinse solvent supply position, rinse solvent discharge position, and drying operation position. , Is configured to be continuously rotated and transferred to the laundry taking-out position in the atmosphere, and the laundry is solvent-supplied, washed, solvent discharged, rinse solvent-supplied, rinse, rinse solvent discharged in an inert gas atmosphere. An underwater type dry cleaning apparatus and its underwater type dry cleaning method, wherein various drying operations are performed under the surface of water.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention can be used with a dry cleaning solvent for washing, which is dangerous in flammability and flammability, such as petroleum-based or terpene-based solvents, and has an explosive atmosphere. The present invention relates to an underwater bucket type dry cleaning device which can be used even in a dangerous place and an underwater bucket type dry cleaning method.

[0002]

2. Description of the Related Art Conventional washing methods for clothes are roughly classified into a wet cleaning method and a dry cleaning method. The wet cleaning method mixes soap and detergent with water to remove stains on clothes, clothes, etc. It is a method of removing from. On the other hand, the dry cleaning method is a method of removing dirt by using a highly volatile organic solvent such as petroleum, tetrachloroethylene, or freon. Compared with the wet cleaning method, the dry cleaning method has a great feature that it has a higher cleaning power against oil stains and less waste water is generated, and has been used conventionally.

Further, the dry cleaning method was originally carried out by using a relatively low boiling point fraction such as petroleum-based benzine, but in recent years, tetrachloroethylene and fluorocarbon for cleaning (CFC) have been used.
(-113 etc.), petroleum solvents tend to gradually decrease because they often cause fire accidents. However, due to the ozone layer protection method, it is becoming difficult to use fluorocarbons for cleaning (CFC-113 etc.) and trichloroethane, and tetrachloroethylene is also a causative substance of trihalomethane in drinking water, so there is a concern that it may affect health, so it is difficult to use. Regulated. further,
The HCFCs developed as alternative CFCs have not been confirmed to be safe for the human body and are not currently in a practical situation.

In response to such changes in the social situation, petroleum-based solvents have been reviewed, and dry cleaning devices have been manufactured in consideration of measures against flammability. To give an example, there is a risk of ignition if air is present in the cleaning tank.Therefore, a dry cleaning device equipped with a method of blowing in an inert gas such as nitrogen gas to replace it, or the liquid temperature of the organic solvent should be adjusted. At present, a dry cleaning device has been developed in which a gas concentration in the gas phase is controlled to be lower than the lower limit of combustion by controlling the dry cleaning device.

[0005]

The properties required for a dry-cleaning solvent for clothing are not only that it has a detergency, but that it is safe for humans and handling, and that waste solvents such as waste solvents are used. The solvent must be a well-balanced solvent from various viewpoints such as handleability and economy. Even if the cleaning power is too high, there is a risk of degrading the buttons, fasteners, or adhered patches, and therefore a solvent having an appropriate cleaning power is required. Petroleum-based solvents and terpene-based solvents can be evaluated as optimal except for the above-mentioned evaluation items except the handling safety item. Petroleum-based solvents and terpene-based solvents have an appropriate cleaning power and are safe for the human body, and waste solvents can be incinerated or distilled for recovery and are the most inexpensive. However, petroleum-based solvents and terpene-based solvents can provide a unique dry cleaning device and dry cleaning method as long as they overcome the problem of flammability.

[0006]

Therefore, the present inventor shuts off the ignition source, oxygen, which is the three elements of combustion, and oxygen among the appropriate gas concentrations. That is, dry clear in water
By investigating the method by performing the underwater cleaning, the underwater bucket type dry cleaning apparatus of the present invention and the underwater bucket type dry cleaning method were completed. That is, the present invention relates to a closed-type laundry bucket for accommodating laundry clothes, a laundry clothes charging position in the atmosphere, a solvent supply position below the water surface of a water tank, and a solvent discharge position below the water surface. , The underwater rinse solvent liquid supply position, the underwater rinse solvent discharge position, the underwater drying operation position,
To the laundry bucket, an endless type transfer conveyor that continuously rotates and transfers to the laundry take-out position in the atmosphere and stops at each position to receive various operations at each position, a front endless type transfer conveyor, and the washing bucket. The attached supply / drainage nozzle and supply / exhaust nozzle, one upper and lower automatic connection fittings attached to the tips of these supply / drainage nozzles and supply / exhaust nozzles, and this one automatic connection joint automatically under the water surface of the water tank. By connecting the other automatic connection joint arranged in each position under the water surface arranged in the water tank to be connected, and by connecting the one automatic connection joint and the other automatic connection joint, the inside of the washing bucket and the atmosphere It is configured to communicate with each other, and in the inert gas atmosphere, the laundry clothes can be used for solvent supply, washing, solvent discharge, rinse solvent supply, rinse, rinse solvent discharge, and drying in a washing bucket. Water bucket Doraikuri and performing a work under water - is a structure of the training device.

[0007] Further, a laundry clothes charging step of accommodating the laundry clothes in a closed type laundry bucket in the atmosphere, and a solvent liquid supply for supplying a solvent to the washing bucket after the laundry clothes charging step under the water surface of the water tank. A step, a washing step of washing laundry clothes in a washing bucket below the water surface, a solvent discharging step of discharging the used solvent that has undergone the washing step under the water surface from the washing bucket as an inert gas, and A rinsing solvent liquid supplying step of supplying a rinsing solvent under the water surface of an aquarium to the washing bucket, a rinsing step of rinsing laundry clothes in the washing bucket under the water surface, and a used rinsing solvent after the rinsing step. Rinse solvent discharge step of discharging underwater from the washing bucket with inert gas, and drying operation step of drying washed clothes under the water surface with inert gas in the washing bucket , A laundry clothes taking-out step of taking out laundry clothes that have undergone a drying operation step in the atmosphere from a washing bucket, a washing clothes preparing step following this washing clothes taking-out step, and the washing bucket are successively made in the order of each step It is a construction of an underwater bucket type dry cleaning method, which is characterized by comprising an endless type transfer conveyor which is rotationally transferred. The inert gas includes carbon dioxide gas, nitrogen gas and the like, and carbon dioxide gas is particularly preferable because of its physical properties, economical efficiency and availability.

[0008]

That is, according to the present invention, there is provided a hermetically-sealed laundry bucket for accommodating laundry clothes, the laundry bucket being sequentially loaded in the atmosphere at the laundry clothes loading position, the solvent supply position below the water surface of the water tank, and the water surface. Lower solvent discharge position, below-water rinse solvent supply position, below-water rinse solvent discharge position, below-water drying operation position, and laundry clothes take-out position in the atmosphere. It is conveyed by an endless type conveyor that stops and receives various operations at each position. Therefore, the laundry is first accommodated in the closed type washing bucket in the atmosphere, that is, after the laundry clothes preparation step, the laundry is transported to the solvent supply position below the water surface of the next water tank. The laundry bucket is always rotated by the transport conveyor during transport.

The washing bucket is sunk below the surface of the water in the water tank and then stops at the solvent supply position. Then, all the leading and trailing laundry buckets during the transportation are stopped at the positions for receiving the respective operations as shown in the figure. First, when the washing bucket is stopped at the solvent supply position, one upper and lower automatic connection joints attached to the tips of the supply / drainage nozzle and the supply / exhaust nozzle of the washing bucket are placed below the water surface of the aquarium. The other automatic connection joint is sandwiched and connected to each other by the vertical movement in the direction of the arrow in the drawing. When the one automatic connection joint and the other automatic connection joint are connected, the inside of the washing bucket is communicated with the atmosphere. And
Inert gas is filled from the air supply / exhaust nozzle to expel the air in the washing bucket to make it anoxic. A combustible solvent is supplied from the supply / discharge nozzle into the washing bucket in an oxygen-free state, and is exhausted from the supply / exhaust nozzle. That is,
It is a solvent supply process.

After that, the other automatic connection joint is moved up and down in the opposite direction described above to separate from the upper and lower automatic connection joints of one of the washing buckets to release the connection. In this way, the washing bucket becomes free again and is transported from the solvent supply position to the next solvent discharge position by the transfer conveyor. The oxygen-free washing bucket which is sealed during this conveyance is rotated. By rotating the laundry bucket, the laundry clothes are brought into contact with the inner wall of the laundry bucket, or the laundry clothes are brought into contact with each other to improve the penetration of the solvent into the laundry clothes and the laundry clothes and the solvent are struck against each other. As a result, the clothes are washed, and most of the clothes are cleaned. The washing bucket reaches the solvent discharge position. At this solvent discharge position, the upper and lower automatic connection joints attached to the tip of the water supply / drainage nozzle and the supply / exhaust nozzle of the washing bucket again are the arrows of the drawing of the other automatic connection joint arranged below the water surface of the water tank. By vertical movement in the direction, they are sandwiched and connected from above and below. When the one automatic connection joint and the other automatic connection joint are connected, the inside of the washing bucket is communicated with the atmosphere. Further, since the inert gas is supplied from the upper supply / exhaust nozzle and the solvent used for washing in the washing bucket is discharged from the lower supply / drainage nozzle, the interior of the washing bucket is in an oxygen-free state. That is, it is a solvent discharging step.

Then, the laundry bucket is transferred from the solvent discharge position to the rinse solvent liquid supply position by a transfer conveyor while rotating. One of the upper and lower automatic connection joints of the washing bucket is connected by being sandwiched from the upper and lower sides by vertically moving the other automatic connection joint arranged below the water surface of the water tank. When the one automatic connection joint and the other automatic connection joint are connected, the inside of the washing bucket communicates with the atmosphere. And
The rinse solvent used for rinsing the laundry in the laundry bucket is supplied from the lower supply / discharge nozzle and the inert gas is discharged from the upper supply / exhaust nozzle. Of course, the inside of the washing bucket maintains anoxic condition. That is, it is a rinse solvent supply process.

The laundry bucket that has been subjected to the rinse solvent liquid supplying step is transported by the transport conveyor while rotating to the next rinse solvent discharge position. Due to the rotational movement during the transfer, the laundry clothes are struck against the inner wall of the washing bucket or abutted against each other to improve the permeation of the rinse solvent, so that the laundry clothes and the rinse solvent are struck against each other. This is done by rinsing in a sealed, anoxic state. That is, it is a rinsing step. When this rinsing step is applied, the laundry clothes are cleaned.

The washing bucket that has undergone the rinsing step reaches the next rinsing solvent discharge position. Here, as described above, the other automatic connection joint arranged below the water surface of the water tank moves up and down and is sandwiched from the upper and lower sides, and one upper and lower automatic connection joints of the washing bucket are connected. When the one automatic connection joint and the other automatic connection joint are connected, the inside of the washing bucket communicates with the atmosphere. Then, the rinse solvent used for rinsing the laundry in the laundry bucket is discharged from the lower supply / discharge nozzle and the upper supply / exhaust nozzle supplies the inert gas. Of course, the washing bucket still retains the anoxic state. That is, it is a rinse solvent discharging step.

After discharging the rinsing solvent, as described above, the other automatic connection joint provided below the water surface of the water tank moves up and down to separate, and the one automatic connection joint and the other automatic connection joint are separated. The connection is released. Then, the laundry bucket reaches the drying operation position while containing the laundry clothes. Here, as described above, the other automatic connection joint arranged below the water surface of the water tank moves up and down and is sandwiched from the upper and lower sides, and one upper and lower automatic connection joints of the washing bucket are connected. When the one automatic connection joint and the other automatic connection joint are connected, the inside of the washing bucket and the inside of the air fin heater communicate with each other,
Dry inert gas having a temperature higher than that of the lower air supply nozzle passes through the laundry bucket and is exhausted from the upper exhaust nozzle to evaporate the rinsing solvent liquid that has permeated into the laundry during this period to wash the laundry. Let it dry. Naturally, the washing bucket is kept in anoxic condition. That is, it is a drying operation step.

After that, the laundry bucket is transferred from the drying operation position to the laundry take-out position in the atmosphere. Here, the washing condition of the laundry is inspected, and the washed clothes are taken out from the washing bucket. The empty washing bucket is transferred to the original position for loading laundry clothes in the atmosphere by the transport conveyor and undergoes various underwater dry cleaning operations starting from the laundry loading process in the atmosphere. In addition, laundry clothes that have not been completely washed are again subjected to the underwater dry cleaning operation while being stored in the washing bucket.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will now be described in more detail with reference to the drawings. FIG. 1 shows an overall block schematic diagram of the underwater dry cleaning method of the present invention. Figure 2
The washing bucket shown by reference numeral 1 in FIG. 3 has a hexagonal prism as its main body, and one side of the washing bucket is charged with laundry clothes.
A lid for taking out is provided, and when the lid is closed, the inside is closed. The main body may have an octagonal shape, a circular shape, or the like. Washing bucket 1 is SUS304
Viton (trade name) is used for gaskets because it is made of stainless steel, which has excellent solvent resistance and durability.

An embodiment of the underwater type dry cleaning device of the present invention using the washing bucket 1 is as follows:
A closed-type laundry bucket 1 for accommodating laundry clothes, a laundry clothes charging position J in the atmosphere, a solvent liquid supply position A below the water surface of a water tank, and a solvent discharge position C below the water surface of the laundry bucket 1 in order. Continuous rotative transfer to the underwater rinsing solvent supply position D, the underwater rinsing solvent discharge position F, the underwater drying operation position G, and the atmospheric laundry unloading position H, and stop at each position. Endless type transfer conveyor I for performing various operations at each position, the water supply / drainage nozzle 7 and the air supply / exhaust nozzle 8 attached to the washing bucket 1, and the water supply / drainage nozzle 7 and the air supply / exhaust nozzle. 8
One of the upper and lower automatic connection fittings 10, 9 attached to the tip of the
And the other automatic connection joints 6 and 5 disposed in the water tank 2 that is automatically connected to the one automatic connection joints 10 and 9 below the water surface of the water tank 2 and arranged at the respective positions below the water surface, Automatic connecting joints 10 and 9 and the other automatic connecting joints 6 and 5
Is configured to connect the inside of the washing bucket 1 to the atmosphere, and the laundry clothes in the washing bucket 1 in the carbon dioxide gas atmosphere are subjected to solvent supply, washing, solvent discharge, rinse solvent supply, rinse, It has a feature that various operations such as rinsing solvent discharge and drying are performed under the water surface.

The one automatic connection joints 10 and 9 are preferably male joints of the one-touch quick coupling, and correspondingly, the other automatic connection joints 6 and 5 are female side of the one-touch quick coupling. A joint is preferable. When both are connected, the inside of the washing bucket 1 is communicated with the atmosphere. The other automatic connection fitting 6
Communicates with the atmosphere by communicating with the air supply / exhaust nozzle 4, the exhaust nozzle 41, and the air supply nozzle 44 that extend to above the water surface of the water tank 2.
Similarly, the other automatic connection joint 5 is connected to the liquid supply nozzle 3, the liquid discharge nozzle 33, and the air supply nozzle 44 for the drying operation below the water tank 2.

Further, one embodiment of the underwater dry cleaning method of the present invention is a closed type washing bucket 1 in the atmosphere.
A washing clothes preparation step J for accommodating laundry clothes, and a solvent supply step A for supplying a solvent to the washing bucket 1 after the washing clothes preparation step J is filled with carbon dioxide gas under the water surface of the water tank 2. A washing step B for washing clothes in the washing bucket 1 under the water surface, and a solvent discharging step C for discharging the used solvent after the washing step B as carbon dioxide gas under the water surface from the washing bucket 1. Further, a rinsing solvent liquid supplying step D of supplying a rinsing solvent to the washing bucket 1 below the water surface of the water tank 2, a rinsing step E of rinsing laundry clothes in the washing bucket 1 below the water surface, and the rinsing step. Rinse solvent discharging step F in which the used rinse solvent that has passed through E is discharged from the washing bucket under carbon dioxide with water surface, and the above-mentioned water rinsed laundry clothes are dried in the washing bucket 1 with high temperature carbon dioxide gas. To dry A work step G, and washing clothes extraction step H of washing clothes washing already passed through the drying operation step G in the air is taken out from the laundry bucket 1, this washing clothes extraction step H
And the endless type transfer conveyor I for continuously rotating and transferring the washing bucket 1 in the order of each step. The transport conveyor 1 may be a chain conveyor or a rope conveyor, but a rope conveyor is particularly preferable.

That is, the underwater bucket type dry cleaning apparatus and the underwater bucket type dry cleaning apparatus according to the present invention.
Since the embodiment of the cleaning method has the above-described structure, the closed type washing bucket 1 for containing the laundry is provided, the washing bucket 1 is sequentially placed in the atmosphere at the laundry clothes charging position, and the solvent under the water surface of the water tank. A liquid supply position, the underwater solvent discharge position, the underwater rinse solvent liquid supply position, the underwater rinse solvent discharge position, the underwater drying operation position, and the laundry clothes removal position in the air continuously. 60 rpm or 1
It is transported by an endless type transport conveyor I which is rotationally transported at 00 rpm and stopped at each position to receive various operations at each position. In this case, a balance weight is attached to the washing bucket 1 at one place, and when the washing bucket 1 is stopped, one automatic connection joint 1 is always in a fixed position.
0 and 9 are arranged so that the other automatic connection joints 6 and 5 are in contact with each other as shown in FIGS. 2 and 3, respectively. When the washing bucket 1 sinks in the water tank 2 under its own weight, one automatic connection joint 1
The automatic connection joints 0 and 9 are automatically connected to the other automatic connection joints 6 and 5 to establish a communication state.

Therefore, the laundry clothes are first accommodated in the closed type washing bucket 1 in the atmosphere, that is, after the laundry clothes preparation step, they are conveyed to the solvent supply position below the water surface of the water tank 2. It The laundry bucket 1 is always rotated by the transport conveyor I during transport.

The washing bucket 1 is sunk below the water surface of the water tank 2 and then reaches the solvent supply position and stops. Then, the preceding and following washing buckets 1 during all the transfer are stopped at positions corresponding to respective operations as shown in FIGS. 2 and 3. First, when the washing bucket 1 is stopped at the solvent liquid supply position, the upper and lower automatic connection joints 9 and 10 attached to the tips of the liquid supply / drainage nozzle 7 and the air supply / exhaust nozzle 8 of the laundry bucket 1 are The other automatic connection joints 5 and 6 arranged below the water surface of the water tank 2 are sandwiched and connected to each other by vertical movement in the direction of the arrow in the drawing. When the one automatic connection joints 9 and 10 are connected to the other automatic connection joints 5 and 6, the inside of the washing bucket 1 is communicated with the atmosphere. Then, carbon dioxide gas is filled from the air supply / exhaust nozzle 4 to expel the air in the washing bucket to make it anoxic. Actually, it purges for about 20 sec at a flow rate of 100 liter / min. The cleaning solvent is supplied from the supply / drainage nozzle 4 into the washing bucket 1 in the oxygen-free state at a rate of 10 liters and discharged from the supply / exhaust nozzle 4. That is, the solvent supply step A.

After that, the other automatic connection joints 5 and 6 are moved up and down in the opposite direction described above to separate from the one upper and lower automatic connection joints 9 and 10 of the washing bucket 1 to release the connection. In this way, the washing bucket 1 becomes free again and is transported by the transport conveyor I from the solvent supply position to the next solvent discharge position. The oxygen free washing bucket 1 sealed during this conveyance is rotated. By the rotation of the washing bucket 1, the laundry clothes are brought into contact with the inner wall of the washing bucket 1,
Alternatively, it is performed by bringing the laundry clothes into contact with each other to improve the penetration of the solvent into the laundry clothes and hitting the laundry clothes and the solvent with each other. The standard cleaning time and cleaning temperature are 5 minutes × 50 ° C., but the setting conditions can be changed as necessary. Since the cleaning temperature can be constantly controlled by the water temperature in the water tank 2, the small temperature change is one of the factors that enhance the safety.

When the washing with the solvent is completed, the washing bucket 1 reaches the solvent discharging position. At this solvent discharging position, one of the automatic connection joints 9 and 10 attached to the tips of the water supply / drainage nozzle 7 and the air supply / exhaust nozzle 8 of the washing bucket 1 again.
Are sandwiched from above and below by the vertical movement of the other automatic connection joints 5 and 6 arranged below the water surface of the water tank 2 in the direction of the arrow in the drawing. When the one automatic connection joints 9 and 10 and the other automatic connection joints 5 and 6 are connected, the inside of the washing bucket 1 communicates with the atmosphere. Then, since carbon dioxide gas is supplied from the upper supply / exhaust nozzle 8 and the solvent used for washing in the washing bucket 1 is discharged from the lower supply / drainage nozzle 7, the inside of the washing bucket 1 is in an oxygen-free state. Is. That is, the solvent discharging step C.

Then, the washing bucket 1 is transported from the solvent discharge position to the rinse solvent supply position by the transport conveyor I while rotating. One of the automatic connection joints 9 and 10 of the washing bucket 1 is connected by being vertically sandwiched by the other automatic connection joints 5 and 6 arranged below the water surface of the water tank 2 which are vertically moved. When the one automatic connection joints 9 and 10 and the other automatic connection joints 5 and 6 are connected, the washing bucket 1
The inside communicates with the atmosphere. Then, a rinsing solvent (convenient to be the same as the washing solvent) used for rinsing the laundry in the washing bucket 1 is supplied from the lower supply / discharge nozzle 7, and carbon dioxide gas is supplied from the upper supply / exhaust nozzle 8 to the upper side. It will be discharged. Of course, the inside of the washing bucket 1 is kept in an oxygen-free state. That is, it is the rinse solvent supply step D.

The washing bucket 1 which has been subjected to the rinsing solvent liquid supplying step D is transported by the conveyor I while rotating to the next rinsing solvent discharging position. Due to the rotational movement during the transfer, the laundry clothes are struck against the inner wall of the washing bucket 1 or come into contact with each other to improve the permeation of the rinse solvent, and the laundry clothes and the rinse solvent are struck against each other. It is done by things. It is rinsed in a sealed, oxygen-free state. That is, it is the rinsing step E. When the rinsing step E is performed, the dirt on the laundry clothes is removed.

After the rinsing step E, the washing bucket 1 reaches the next rinsing solvent discharge position. Here, as described above, the other automatic connection joints 5, 6 arranged below the water surface of the aquarium 2
Moves up and down and is sandwiched from above and below to be connected to one of the automatic connection joints 9 and 10 of the washing bucket. When the one automatic connection joints 9 and 10 and the other automatic connection joints 5 and 6 are connected, the inside of the washing bucket 1 communicates with the atmosphere. Then, the rinse solvent used for rinsing the laundry clothes in the washing bucket 1 is discharged from the lower supply / drainage nozzle 7 and carbon dioxide gas is supplied from the upper supply / exhaust nozzle 8. Of course, the inside of the washing bucket 1 is still kept in the anoxic state. That is, it is the rinse solvent discharging step F.

After the rinsing solvent is discharged, the other automatic connection joints 5 and 6 arranged below the water surface of the water tank 2 move up and down as described above, and the one automatic connection joint 9 and
The connection between 10 and the other automatic connection joint 5, 6 is released. Then, the washing bucket 1 reaches the drying operation position while containing the laundry clothes. Here, as described above, the aquarium 2
The other automatic connection joints 5 and 6 arranged below the water surface are vertically moved and sandwiched from above and below to be connected to one automatic connection joints 9 and 10 of the washing bucket 1. When the one automatic connection joint 9, 10 and the other automatic connection joint 5, 6 are connected, the inside of the washing bucket 1 and the inside of the air fin heater 11 communicate with each other, and the temperature is higher than that of the lower air supply nozzle 44, that is, 6
Dry carbon dioxide gas of 0 ° C. to 70 ° C. is supplied into the washing bucket 1. Air volume is 5 Nm ³ / min to 15
Nm ³ / min. This carbon dioxide gas passes through the inside of the washing bucket 1 and is blown by the blower 14 from the upper exhaust nozzle 41.
Exhausted by. The carbon dioxide gas obtained by heating and evaporating the rinse solvent remaining in the laundry clothes in the laundry bucket 1 is exhausted by the blower -14, and when passing through the condenser 12, the rinse solvent vaporized and contained in the carbon dioxide gas is condensed and liquefied. And is collected in the solvent tank via the drain line 13.

Then, this solvent is reused for dry cleaning. The carbon dioxide gas that has passed through the condenser 12 is heated again by the air fin heater 11, is blown into the washing bucket 1 from the air supply nozzle 44, and is recirculated. Thus, the rinsing solvent that has permeated the laundry is evaporated to dry the laundry. The drying time is about 5 minutes when operated at a drying temperature of 60 ° C. Naturally, the inside of the washing bucket 1 is kept in an anoxic state. That is,
It is a drying operation step G.

Thereafter, the laundry bucket 1 is transferred from the drying operation position to the laundry take-out position in the atmosphere. Here, the laundry that has been inspected for the washing condition and washed is taken out of the washing bucket 1 to the outside. The empty laundry bucket 1 is transferred to the original position of the laundry garment in the atmosphere by the transport conveyor I, and undergoes various underwater dry cleaning operations starting from the laundry garment preparation step J in the atmosphere. Further, laundry clothes that have not been completely washed are subjected to the underwater dry cleaning operation again while being stored in the washing bucket 1.

[0031]

As described above, since the underwater bucket type dry cleaning device and the underwater bucket type dry cleaning method of the present invention are configured as described above, the laundry clothes and the solvent are placed in the washing bucket. , When the rinsing solvent is stored, the inert gas always coexists and is in an oxygen-free state, so there is no danger of ignition and burning of laundry clothes, and the supply and drainage of the solvent under the water surface of the aquarium, By exhausting inert gas and supplying air, the opportunity to mix air is completely eliminated, so the safety from ignition and combustion of laundry is further enhanced. Furthermore, damage to the washing bucket can be easily identified. The washing temperature and the rinsing temperature can maintain the water temperature in the water tank constant and easily, so that the temperature change is small and the safety is improved.

Further, since the underwater bucket type dry cleaning apparatus and the underwater bucket type dry cleaning method of the present invention are constructed as described above, the main computer is adopted to make the dry cleaning automatic and unmanned. This is possible, and various dry cleaning operations can be efficiently and totally controlled. Petroleum-based and terpene-based solvents have many excellent characteristics such as moderate washing power, safety to human body, easy disposal of waste solvent, and low solvent cost, but they are flammable. Therefore, fire accidents often occur, but by adopting the underwater bucket type dry cleaning device and the underwater bucket type dry cleaning method of the present invention, it is possible to safely use petroleum-based or terpene-based flammable solvents. It is extremely economical because it can be used.

[Brief description of drawings]

FIG. 1 is a block diagram showing the outline of the steps of an embodiment of the underwater bucket type dry cleaning method of the present invention.

FIG. 2 is a schematic explanatory view showing an apparatus and method for performing various operations in the first half of one embodiment of an underwater bucket type dry cleaning apparatus and an underwater bucket type dry cleaning method according to the present invention.

FIG. 3 is a schematic explanatory view showing an apparatus and method for performing various operations in the latter half of one embodiment of the underwater bucket type dry cleaning apparatus and the underwater bucket type dry cleaning method according to the present invention.

[Explanation of symbols]

 1 ... Washing bucket 2 ... Water tank 3 ... Liquid supply nozzle 33 ... Drainage nozzle 4 ... Air supply / exhaust nozzle 41 ... Exhaust nozzle 44 ... Air supply nozzle 5, 6 ..Other automatic connection joint 7 ... Supply / discharge nozzle 8 ... Supply / exhaust nozzle 9,10 ... One automatic connection joint 11 ... Air fin heater 12 ... Condenser 13 ... Drain Line 14 ... Blower-A ... Solvent supply process B ... Washing process C ... Solvent discharge process D ... Rinse solvent supply process E ... Rinse process F ... Rinse solvent discharge Process G ・ ・ ・ Drying operation process H ・ ・ ・ Washing clothes take-out process I ・ ・ ・ Conveyor conveyor J ・ ・ ・ Washing clothes preparation process K ・ ・ ・ Pulley

Claims (2)

[Claims] 1. A closed-type laundry bucket for accommodating laundry clothes, a laundry clothes charging position in the atmosphere, a solvent supply position below the water surface of a water tank, and a solvent discharge position below the water surface, in order. Continuous rotative transfer to the underwater rinsing solvent liquid supply position, the underwater rinsing solvent discharge position, the underwater drying operation position, and the laundry unloading position in the atmosphere, and each position is stopped at each position. Endless type transfer conveyor that receives various operations in the above, a water supply / drainage nozzle and a water supply / exhaust nozzle attached to the washing bucket, and one upper and lower sides attached to the tips of the water supply / drainage nozzle and the air supply / exhaust nozzle. And the automatic connection joint of the other one, which is arranged in each position under the water surface arranged in the water tank automatically connected under the water surface of the water tank to the one automatic connection joint, and the one automatic connection joint And the other automatic connection joint are connected so that the inside of the washing bucket communicates with the atmosphere, and in the atmosphere of inert gas, wash clothes in the washing bucket with solvent supply, washing, solvent discharge, and rinse. An underwater bucket type dry cleaning device characterized in that various operations such as solvent supply, rinsing, rinsing solvent discharge, and drying are performed under the water surface. 2. A laundry clothes charging step of accommodating laundry clothes in an airtight laundry bucket in the atmosphere, and a step of filling the laundry bucket after the laundry clothes charging step with an inert gas under the water surface of the water tank. A solvent supply step of supplying a solvent, a washing step of washing laundry clothes in a washing bucket below the water surface, and a used solvent that has been subjected to the washing step with an inert gas under the water surface of the washing bucket. Discharging solvent discharging step, further rinsing under the water surface of the water tank to the washing bucket, rinsing solvent feeding step, rinsing washing clothes under the water surface in the washing bucket, and rinsing Rinse solvent discharge process that discharges used rinse solvent after process from washing bucket under water surface with inert gas, and wash clothes washed under water surface with high temperature inert gas in washing bucket A drying operation step of drying, a laundry clothes taking-out step of taking out the washed laundry clothes that have undergone the drying operation step in the atmosphere from the washing bucket, the laundry clothes charging step following the laundry clothes taking-out step, and the washing bucket And a submersible bucket type dry cleaning method comprising: