WO1993001345A1 - Cartridge filter cleaning apparatus serving also as filtration apparatuses for installed dry cleaning machines - Google Patents

Abstract

A cartridge filter cleaning apparatus (S) serving also as a filtration apparatuses which is incorporated in an installed dry cleaning machine (M) and capable of cleaning cartridge filters in cartridge filter type filtration apparatuses (3) without replacing the filters, i.e., with the filters left in these apparatuses (3). The cartridge filter cleaning apparatus (S) serving also as filtration apparatuses according to this invention is connected to the installed dry cleaning machine (M), and this apparatus is rendered usable both as filtration apparatuses (3), which function as cleaning mechanisms, by selectively operating switch means, such as valves (a-h), and a cleaning mechanism by sending hot air from drying mechanisms (4, 5, 6, 7, 9) thereinto through a core pipe (34).

Description

 Ming A filter and purifier for an existing dry cleaning machine

 The present invention relates to an existing dry cleaning machine, namely, a washing mechanism in which a washing tank, a solvent tank, a filtration tank and the like form a single circuit, a dust filter, a fan for forced circulation, a cooling spot for solvent recovery, Combined with a drying mechanism that forms a single circuit with a hot scooter, etc., and is circulated and used in the washing process in a dry cleaning machine that has already been installed and used in the cleaning area. An annoying problem for processing tasks when existing filters in the filtration equipment, which play an important role in removing solvent stains, begin to interfere with the filtration function after continuous use for a certain period of time The present invention intends to provide a cartridge filter purifying device which also has a novel structure and has a novel structure, which can cope with the problem.

 As a result of the development of various substances that enhance the cleaning effect, the current quenching equipment has been developed with the use of bark π-ethylene and trichloride as well as petroleum solvents, which are organic solvents and have relatively high flash points. Many of them use nonflammable synthetic solvents such as ethane and bulklens, which is a fluorine-based solvent.

In dry cleaning using these solvents, unlike water used for washing, the solvent itself has a high value, so the solvent that has been used once and contaminated once has been installed in the equipment every time. Via To remove any insoluble dust, etc., and then re-circulate back to the pipe. If the solvent becomes soluble and accumulates more than a certain amount, it is distilled and used repeatedly. I try to do it.

 What is the limit of repeated use of the solvent, assuming that the washing quantity per machine is about 30 kg? It is about 800 times, and if it is longer than that, the filter for removing insoluble dust may be clogged and the cleaning effect may be impaired. Therefore, it is necessary to replace the filter.

 This filter has a cylindrical shape in which an adsorbent such as activated carbon is loaded in the space around the core pipe and the outer peripheral surface is covered with a water-permeable sheet such as Japanese paper or nonwoven fabric. It is formed in a cartridge type that can be freely inserted into and removed from the cleaning device of the cleaning machine.

 Filters that have clogged and are no longer capable of functioning have accumulated unacceptably large amounts of insoluble dust that has fallen off of laundry and at the same time impregnated and retained solvent, and are usually used unused filters. The weight of the filter (in the case of washing for 3 okiiZ times) is about 15 kg, whereas the weight of the filter that can no longer function is about 45 kg. The filter will be filled with 30 kg of insoluble dust and solvent.

Looking at the breakdown of the residue weighing up to 30 kg in the above example, it was found that about 5 kg was insoluble dust and the remaining 25 kg was solvent. In the case of a file that has lost its ability to pass through with a large amount of solvent remaining, the fuel is not only economical to simply discard, but also the solvent, parklor ethylene.ゃ Valcuren is designated as a hazardous substance, so it must be transported and incinerated by a specialist and disposed of on its own. Face the thorny problem of being banned.

 In fact, in some regions, there are no recovery companies that process these specialty products.For example, in the case of Yamagata Prefecture, it is necessary to rely on a specific specialized company in Niigata Prefecture. The cost of recovery is 180 yen / kg (45 x 180 = 8100 yen / piece in the previous example), so large-scale cleaning is especially used. In stores, the burden is not negligible in terms of expenses, in addition to cumbersome handling.

 In order to cope with such a situation, the applicant of the present application has already proposed, as the invention of Japanese Patent Application No. 2-2566458, a purifying device for a cartridge / di-filter, which has eliminated such a filtering function. Once completed, the solvent remaining in the filter is almost completely recovered to remove the harmful substances, and as a result, the overall weight of the filter is reduced as much as possible. While succeeding in significantly reducing the expenses that had to be paid, in 1991, as shown in the circuit diagram of Fig. 5, a purification mechanism was installed in the dry cleaning machine M in advance. A dry cleaning machine with a built-in purification mechanism has been developed and completed. The circuit that can be formed can be easily realized by switching valves.

The present invention has been completed based on the technical idea of the invention described above, while continuing the development research for further improvement. Among the already proposed, the former is: The aim was to remove the power filter, which had no cleaning function, from the dry cleaning machine once, and to purify it.The latter was installed inside the dry cleaning machine in advance. The purpose of this invention was to purify the cartridge while keeping the cartridge filter as it was, but in this invention, although the latter is an improved type, the one already proposed has already been installed in the dry cleaning machine. Part of the mechanism of Since the filter is used, it is not necessary to use it in a newly manufactured dry cleaning machine due to problems such as pipe change, expansion, and the number of valves installed. In addition to this, not only did it become quite popular depending on the differences in models, but also because it was determined that there were models that could not be adopted, etc. It can be used for any type of dry cleaning machine. A di-filter purifier was realized.

Disclosure of the invention

 A cartridge filter purifying apparatus for an existing dry cleaning machine that also serves as a pass filter of an existing dry cleaning machine basically has the following configuration.

That is, a filter device in which a plurality of cartridge filters are arranged in a sealed manner by connecting a core pipe outside the existing dry cleaning machine, and an outer surface of the cartridge filter from the core pipe to the filter device. Dryers that deliver hot air toward the air, and they are connected to each other at the piping section through a switching device such as a valve to form a circuit. A cartridge filter purifier consisting of an existing filter is installed. Exhaust device core pipe in the device Hot air supply piping is a piping part, and it is better than the switching device at the same place; F Connect to the position where the filtering device is located through another switching device Person, the same flight 沪過 device in the pipe section leading to the same flight ^ over equipment from the solvent tank of existing Doraiku cleaning machine Move the piping section of the glue to another location where the hot air outlet of the filtering device in the cartridge soji filter purifying device is the piping portion of the filter, and the filtering device is located at a position closer to the filtering device than the switching device at the same location. This is a cartridge filter purifying device that also serves as a filtration device for an existing dry cleaning machine, which is connected via a switching device.

 The cleaning mechanism used in the most common dry cleaning machines in recent years is to pump up the solvent in the solvent tank, pass it through a filter, and remove the dirt and dirt from the solvent tank to wash the tank. It is usually configured as an independent circuit that removes dirt from the laundry with the solvent, collects it in a button trap, precipitates solid foreign matter, and then returns the solvent to the solvent tank again. In addition to the powder system that employs an ender pendant filter, recently, a disposable cut-edge filter is provided in the pressure tank with a plurality of disposable filters in the pressure tank. There is a gradual shift to a cartridge type, which is connected in series by communicating with a core pipe.

 According to the present invention, all of the transmission devices in the purification mechanism that are pre-installed in these existing dry cleaning machines do not function as devices irrespective of the method and the quality of the devices, and the existing drying devices are not used. Either leave it in the cleaning machine (and therefore take appropriate measures to prevent the solvent from migrating) or remove it if necessary.

The drying machine of the existing dry cleaning machine usually has a dust filter, a fan for forced circulation, a cooling spot for solvent recovery, a hot spot for evaporating the solvent from the washing basin, and creating hot air for drying the clothes. The spot corresponding to the hatched pipe section shown in Fig. 2 where the spots migrated and returned to the washing basin was replaced with the airflow containing the solvent released from the laundry according to the arrows and the airflow containing these solvents. Most commonly, they are configured independently as a circuit that continuously circulates the hot air created by heating the clean airflow after separating and recovering the solvent from each other. In other words, the structure, function, number of combinations, etc. of the dust filter, fan, cooling spot, heating spot, and associated equipment can be freely designed as appropriate, and include those whose design has been changed. All of the common dryers are included in the dryer arena of the present invention.

 In contrast to the existing dry cleaning machine M, which incorporates the above-mentioned cleaning mechanism and drying mechanism, the force / trellif / letter purifying device, which is formed as a completely separate device, connects each core pipe. A filter device in which a plurality of cartridges and di-filters are placed in series in a pressurized tank, and a hot air blow-in circuit for the filter device, in which the outer surface of the cartridge filter faces from the core pipe to the filter device. Drying machine that realizes the following: dust filter, fan for forced circulation, cooling spout for solvent recovery, heat for evaporating the solvent and creating hot air to dry the filter A switching device is located between the hot air inlet of the filter and the hot spot of the drying mechanism, and a hot air outlet side of the filter and a fan for forced circulation in the drying mechanism. A switching device is connected between the pipes to form a single circuit by connecting each of the pipes. The number of pressure tanks used and the number of Needless to say, the number of force filter filters to be used is determined at the design stage according to the cleaning ability of the dry cleaning M, and is not fixed.

The cartridge's filter purifying device formed as this separate device must be connected to the above-mentioned existing lie cleaning machine at a predetermined location via a switching device. I- That is, first, the piping section of the filtration device in the machine from the washing tub in the existing dry cleaning machine to the filtration device in the machine is replaced with the core pipe of the filtration device in the cartridge filter purification device. (A) Connect the hot air blower to the piping part of the sea through another switching device at a position where the filtering device is more in the position than the switching device at the same location.

 On the other hand, the hot air outlet of the filtration device in the cartridge filter purification device is connected to the piping section of the filtration device inside the filtration device in the piping section of the existing dry cleaning device from the filtration device in the same device to the solvent tank. This is a part of the piping which is connected to a position where the transmission device is located at a position closer to the transmission device than the switching device at the same location via another switching device.

 The cartridge filter purifying apparatus for an existing dry cleaning machine of the present invention having the above-described basic configuration, which is also used as a filtering apparatus and a filtering apparatus, opens the switching devices a, b, e, and f, and outputs the switching signals c, d, and s. When the drying mechanism is operated with the h and h closed, a cleaning mechanism is configured to remove dust and residual solvent from the cartridge filter, and the cleaning tank and solvent tank of the existing dry cleaning machine are constructed. In a cut-off state, hot air from a heating slot in a drying machine is sent to the outer surface of a cartridge filter arranged in series, in which a core pipe communicates with the inside of the filter, through the core pipe. Such a circuit can be selectively realized.

In addition, in the purification mechanism formed in this way, the impurities discharged during the purification process of the cartridge filter in the filtration device are installed by piping and below the filtration device of the existing dry cleaning machine. In order to separate and recover only the solvent from the water from the solvent solution collected by the cooling spot in the drying mechanism and the pipe section leading to the distillation tank, the pipe and the water separation installed below the cooling spot are separated. Must be included. In addition, the solvent recovered by the water separator is connected to the solvent tank provided in the existing dry cleaning system by piping and connecting it to reuse directly, and the solvent is removed from the water separator. Whether to indirectly transfer to the solvent tank may be appropriately selected.

 On the other hand, in the existing dry cleaning machine, the filter for dual use and the di-filter purifier, on the other hand, open the switching devices c, d, g, and h, and close the a.b, e, and f. When the existing dry cleaning machine is operated, the cleaning device of the device cleans the solvent from the solvent tank in the existing dry cleaning machine and sends the excess solvent to the washing basin. A cleaning mechanism that is similar to the cleaning mechanism that was configured by activating the cleaning device of the existing dry cleaning machine will function as the original dry cleaning machine-_ Brief description of the drawings

 FIG. 1 is a circuit diagram showing a circuit in a state where the cleaning mechanism of the present invention is configured. FIG. 2 is a circuit diagram showing a circuit in a state of forming a drying mechanism of the present invention. A circuit showing the circuit in the state of elliptical! ! , 114 is a main part showing only the transmission device in the purification mechanism (large cross section H, 5) is a circuit! 2 showing a circuit of the purifier already in the proposed elliptical type: BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, representative examples embodied based on the basic training of the present invention will be described in accordance with the attached side II.

As can be understood from the circuit diagram shown in FIG. 3 and FIG. 3, the excess cleaning device / separating device S of the existing dry cleaning machine of the present invention is shown in FIG. Existing facility surrounded by dotted lines And a filtration device 3 in which three cartridge filters 33 are connected in series as shown in the enlarged cross-sectional view of the main part of Fig. 4. With the two units installed, the solvent R is removed from the dust filter 1-4 which is the drying mechanism, the fan 5 for forced circulation, the cooling spot 6 for solvent recovery, and the dirty cartridge filter-33, 33, ... A heating spot 7 that evaporates and removes dust, creates a breeze to dry the filters 33, 33, ……, and in the hot air when operating as a purification mechanism. A water separator 9 for separating and recovering the contained solvent R is provided, and is provided between the hot air blower 32 of the filtration device 3 and the heating spot 7 of the drying mechanism. Are switching devices a and b composed of valves, and Between the hot air outlet side 31 and the forced circulation fan 5 in the drying mechanism, switching devices e and ί, which are also valves, are connected by piping portions P 1 and A road is formed.

 On the other hand, as an example of the existing dry cleaning machine Μ, a solvent tank Μ2 is arranged below the washing tub Μ1 via a button trap Μ11, and the washing mechanism is operated to remove clothes. A predetermined amount of the solvent R required for washing in the washing tank 1 is stored.

 In the present invention, the filtration device 3 is in a state of being isolated from the washing tub M1 and the solvent tank M2 regardless of the type of the filtration device. The pipes MP 3 and MP 4 arranged in M 3 have been cut and separated. However, the distillation tank M8, which has been installed in order to distill the waste liquid discharged from the filtration apparatus M3 placed in the isolated state, is used as it is as described later.

Dust filter M4 for drying mechanism, fan M5 for forced circulation, cooling slot M6 for solvent recovery, heating spot for hot air 0 M7, while being incorporated in the existing {dry cleaning}, is operated as a drying mechanism for the laundry C that has been washed in the washing basin # 1 without any modification.

 As described above, the filtration device / cartridge ". 'Difiltration purifier S" of the present invention, which is different from each other, is different from the existing dry cleaning machine に し て as follows. Piping, connect.

First, the internal filter MF ^{11 in} the piping section from the washing tub 洗濯 1 of the existing dry cleaning machine か ら to the internal filter 装置 3 is connected to the cartridge filter 铮In the piping section of the ΪΡoverload-3 saw '' avive hot air supply line 32 in S, it is switched to the position where the overload E3 is in front of the switching device a.b in the same place. They are connected via devices c and d.

 On the other hand, in the existing dry cleaning machine M, the piping section MP2 in the piping section from the filtration apparatus M3 in the same machine M to the solvent tank M2 is connected to the cartridge filter purification device M2. Through the switching devices g and h, the piping section P 2 of the hot air outlet 31 in the filtering device 3 in S is located at a position where the filtering device 3 is located more than the switching device e.f at the same location. Connected.

In order to activate the washing mechanism for washing clothes first, after connecting the cartridge purifying device fe S for the above-mentioned implementation network to the lye cleaning machine M as described above; Close all valves b, e, and f, open valves c, d, g, and h, pump up solvent tank M2 or A solvent S with pump M21, and open from S pipe MP2. Via the opened valves S and h, the solvent inlet side of the filter 3 of the present invention (that is, the hot air outlet) 31 to the outer periphery of the cartridge filter 33.33,. The impurities are removed in the process of passing through the core pipe 3 4. 3 4... In the center of the T ³ supercharger 3. Because of the valves a and b which are taken out and closed, the solvent R does not turn in the direction of the drying mechanism 4, 5, 6, 7, 7 and 9 of the apparatus of the present invention, but opens the valves c and d which are open. After passing through the pipe section MP 1 and being sent to the washing tub M 1 of the existing dry cleaning machine M to remove dirt on the clothes C in the washing tub M 1, the solid matter is removed by the button trap M l 1. Returns to the solvent tank M2 as the separated solvent R, and is pumped again to wash the clothes C while repeating the same cycle as described above. Allow solvent R to migrate as shown.

 In this step, instead of the filtration device M3 that was shut off in the built-in dry cleaning machine M, the filtration device 3 in the purification device S of the present invention is also used. The function is shared.

 Next, the device S of the present invention is harder, the pump of the solvent R from the solvent tank M2 in the existing dry cleaning machine M is stopped, and the drying originally incorporated in the existing dry cleaning machine M is performed. By operating the mechanisms M 4, M 5, M 6, M 7, and M 9, a drying mechanism in which hot air flows along the hatched pipe portion shown in FIG. Dry laundry C in 1

 In the cooling spot M6 in this process, the hot air containing the solvent is cooled and turned into a solvent solution, sent to the water separator M9, and the solvent R separated from the water W is returned to the solvent tank M2.

The washing machine and the drying mechanism are alternately selected and activated by the dry cleaning machine M connected to the cartridge filter purifying apparatus S for the present invention, which is also used as the cleaning apparatus for cleaning the clothes C. During the repetition, gradually in the device of the present invention, the power of the T filter device 3 內,) the filter function of the filter 3, 3 3, …… At an appropriate time when a field might occur and hinder cleaning, the dirty cartridge filters 33, 33, …… were left in the filtration device 3 as they were. In this state, the operation of the valves a, b, c, d, e. F, g, h switches to the purification mechanism.

The purging mechanism of the cartridge filters 33, 33, …… is to displace the hot air created by the heating spot 7 in response to the arrows in the circuit section with dot seeding display and wavy line display in FIG. Close the valves c, d. S, h and open the same a, b, e, f, and remove the drying mechanism M 4. M 5, M 6, M 7, M 9 in the existing dry cleaning machine M . now operates towards the device drying mechanism incorporated in S 4, 5, 6 7, 9 of the present invention, the hot air from the heating spot 7;.? ¹ KaSo - the E 3 The hot air is fed into the core pipes 3 4, 3 4,…… from the hot air feeder 3 2, realizing a completely opposite flow to the flow of the solvent R in the filtration device 3 when operating as a cleaning mechanism. Purification of the cartridge filters 33, 33, ... will be implemented. The flow of hot air from the transmission device 3 is shown in the enlarged cross-sectional view of the main part in Fig. 4, i.e., three cartridge filters 33 that have deteriorated the transmission function or have lost the transmission function. 3 3, 3 3 are connected via the joints 3, 3 5, 3 5,…, so that each of the top pipes 3 4, 3 4,…, is supplied with hot air; In the flow of R, it is sealed in the power tank 37 in series with the end, the hot air outlet (from the solvent R, the inlet). As described above, the hot air is sent through the core pipe 3 4 of the hot air feeder 3 2 into the supercharged S 3, from the center of the power filter / difilter 1 3, 3 3, 3 3 to the outer periphery. In the process of passing the breeze toward the, various impurities that had been stimulated during the washing process were released and flowed down into the filtration device 3, and the distillation tank The solvent collected by the ripening breeze is dried through the pipe P2. The drying mechanism is guided by the alligator, liquefied in the cooling spot 6 to form a solvent solution, and reaches the water separator 9, where it is reused as the solvent R. Effect brought by the invention

 The filtering apparatus / cartridge, >> di-filter purifying apparatus S of the present invention having the above-described configuration is a filter apparatus M which is originally incorporated into an existing cleaning machine M already installed in a factory. 3 is closed, and only the connection and piping via switching devices a, b, c,… h are performed as specified, and the cleaning machine up to that point is equipped with a cartridge filter type filtration device. Cleaning machine M equipped with a washing mechanism, and 浐 purify the cartridge filters 33, 33, ... enclosed in the supercharger S3 without removing them from the filter 3 at all. It is a very convenient cleaning machine M that can be processed, and compared with the case of using an independent purification device prepared separately from the conventional cleaning machine. Extremely work Not only is it possible to increase the rate, but it is also possible to completely eliminate the danger of spillage of hazardous substances during removal and removal of cartridge filters 33, 33,…. It has become.

In addition, compared to the type in which the already proposed purification mechanism is built into the dry cleaning machine, it is easier to modify and incorporate the existing dry cleaning machine M in each stage. Even if the waste of the filtration device M3 that can be used even if the provisional command is wasted, the economic effect is more than the loss incurred by the waste, and above all, the previous filtration device M3 Economic effect that the safe purification process of distillers 33, 33, …… can be newly performed that could not be achieved if used. _T is only to be assumed that it is possible to increase the immense Xiu the effect can not be a comparison

 In addition, as for the selective switching, for example, as shown in the embodiment, switching devices such as valves a to h are combined at a predetermined position, adopted, and the switching devices a to h are appropriately switched. It can be used as a normal cleaning mechanism or as a filter cleaning mechanism with a new mechanism, and can be used with simple operation. Costs for switching to a cleaning machine for a factory that has an existing dry cleaning machine M that can still be used. ? Not only the problems of our customers, but also the problem of the time that some business must be interrupted for the changeover, so that the loss to business can be reduced, and many clears can be achieved. It will also be possible to adopt it at a ning store. Industrial applicability

As described above, according to the cleaning machine of the present invention, the handling of harmful designated solvents, which are indispensable to the cleaning industry, is extremely safe so that it cannot be compared with conventional ones. 》 Recovery and recovery of expensive harmful designated solvents in addition to recyclability; 2) In addition, the ability to extend the life of the cartridge filter itself, and modification to make use of the conventional dry cleaning machine M It is extremely easy to use and has great economic advantages such as being applicable to dry cleaning machines that are not power filter systems.In addition, is the handling of toxic substances more and more regulated on a global scale in the future? In the era of having to do this, we have been forced to operate in a situation where no substances with a cleaning effect such as safe solvents have been found yet. A particularly useful invention in the cleaning industry Expected to receive high praise

Claims

SE of request • A filtration device in which a plurality of cartridge filters are arranged in a sealed manner by connecting a core pipe outside the existing dry cleaning machine, and a cartridge filter from the core pipe to the filtration device. It consists of a drying mechanism that delivers hot air with its outer surface facing the side, and a circuit is formed by connecting the filtering device and the drying mechanism with a piping section through a switching device such as a valve. A cartridge filter purifying device constructed as described above is installed, and the piping section of the piping in the piping section from the i-pass device in the existing re-cleaning machine to the washing machine and the washing machine is replaced with the power trough. · / The filter is connected to the position of the hot air blower of the filter in the dippur purification device, which is located in the pipe where the filter is located at a position where the filter is located more than the switching device at the same location. The inside of the existing dry cleaning machine in the piping section from the solvent tank to the internal filtration unit; the piping section of the T filtration unit is connected to the power filtration filter purifying unit; the filtration unit The hot air outlet in (2) is the piping section, and the filter is located at a position where the filtering device is located more than the switching device at the same location. (4) The existing dry cleaning machine is connected via the switching device. Cartridge filter purification system