JPH051488U - Solvent purification device for dry cleaning machine - Google Patents

Abstract

(57) [Abstract] [Purpose] Perform solvent purification without solvent loss with simple maintenance. [Structure] Impurities in the solvent flowing through the circulation path 1 are separated by a cyclone classifier 7, and the impurities are distilled by a distiller 14 to be separated from the solvent.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a solvent cleaning device for a dry cleaning machine.

[0002]

[Prior art]

  In a dry cleaning machine, impurities such as dirt and dust are not mixed in the solvent. If this happens, the cleaning ability will drop, and it will be necessary to remove them at all times to purify the solvent. However, conventionally, the method for purifying such a solvent is to install it in the solvent circulation path. A method that uses a centrifugal filter and a cartridge filter that is also installed in the circulation path There are ways to use.

[0003]   As shown in FIG. 3, the centrifugal filter is a solvent recovery tube 2 that rotates inside the container 21. A filter 23 coated with a diatomaceous earth is attached to the circumference of 2 and introduced into the container 21. Pass the solvent through the filter 23 and remove impurities with a diatomaceous earth film. Growling.

[0004]   On the other hand, the cartridge filter is a container having an opening / closing lid 24 as shown in FIG. 25, the exchangeable filters 27 and 28 surrounding the solvent recovery pipe 26 are housed to store the solvent. The filters 27 and 28 are inserted to remove impurities.

[0005]

[Problems to be solved by the device]

  However, since the above centrifugal filter uses diatomaceous earth on the filter surface, A large amount of used diatomaceous earth has to be treated, which is extremely troublesome. There is such a problem. Also, before starting the cleaning work, clean the diatomaceous earth every time. Since it is necessary to pre-coat the surface of the computer, there is also the problem that the burden on the operator increases. is there.

[0006]   On the other hand, in the case of the cartridge filter, the disposable filters 27, 28 As a result, running costs are high and it takes time to replace the filter. There is. Also, when replacing the filter, the solvent accumulated in the filter or in the container 25 There is also a problem that it easily leaks and there is a lot of solvent loss.

[0007]   This invention solves the conventional problems described above and requires troublesome maintenance work. It is an object of the present invention to provide a solvent purification device that does not do so and has no solvent loss.

[0008]

[Means for Solving the Problems]

  In order to solve the above-mentioned problems, the present invention proposes a cyclone classifier in the solvent circulation path. Is provided and the lower end of the classifier is connected to the distiller via an on-off valve. is there.

[0009]   In the above structure, an impurity storage tank is installed at the bottom of the cyclone classifier. It may be provided.

[0010]

[Action]

  In the above structure, the solvent and impurities are separated in the cyclone classifier, The pure material is allowed to settle at the bottom of the classifier. Opening and closing when the accumulated amount of impurities exceeds a certain amount Open the valve and put the impurities into the distiller to separate the impurities from the solvent by distillation. .

[0011]   With this structure, the maintenance work simply discharges the impurities remaining in the still. Well, there is no loss of solvent as when replacing the cartridge filter.

[0012]

【Example】

  1 and 2 show an embodiment of this invention.   In the figure, 2 is a solvent tank, 3 is a basket, 4 is a pump, and 5 is a button tiger. And the solvent pumped up from the tank 2 to the basket 3 is → Button trap 5 → Pump 4 → Basket 3 is circulated through circulation path 1 for cleaning Do.

[0013]   A cyclone classifier 7 and a carburetor are provided in the circulation path 1 via an on-off valve 6. A filter 8 is provided.

[0014]   This cyclone classifier 7 has a funnel-shaped container 9 and the upper part of the container 9 A separator plate 10 is provided and communicates with the upper space of the container 9 at the center of the separator plate 10. A solvent recovery pipe 11 is attached.

[0015]   Further, an impurity storage tank 12 is formed at the lower end of the container 9, and the storage tank 12 is provided. The lower end of the cylinder 12 is connected to the still 14 via the on-off valve 13.

[0016]   In the cyclone classifier 7 described above, the solvent is introduced into the container 9 from the circulation path 1. When this happens, the solvent swirls inside the container 9 and the centrifugal force acts on it to give it a predetermined size. Impurities in the solvent having a large amount are separated. This impurity will settle, and the storage tank 12 The solvent that has been collected and purified is returned to the circulation path 1 through the recovery pipe 11.

[0017]   The distiller 14 is equipped with a heater 15 on the bottom surface to remove the charged solvent and impurities. It is designed to be heated and distilled, and the solvent passage 16 from the distiller 14 is It is connected to the solvent tank 2 via a condenser 17 and a water separator 18.

[0018]   This embodiment has the structure as described above, and the solvent used for cleaning the basket 3 is used. Is sent to the cyclone classifier 7 by the pump 4, the impurities are impure in the classifier 7. After removing the substances, the purified solvent is sent to the basket 3 through the carbon filter 8. To be

[0019]   On the other hand, in the classifier 7, the separated impurities settle and accumulate in the storage tank. These impurities are discharged to the distiller 14 together with the solvent by opening the open / close valve 13 regularly. Take out and distill. This removes the solvent component from the impurities and vaporizes only the impurities. It is left in the retainer 14.

[0020]   In the above structure, the open / close valve 13 is periodically opened to discharge impurities from the storage tank 12. In addition, the maintenance work can be carried out in the distiller 14 with a predetermined amount of impurities or more. It only takes a few moments to discharge it, so it takes almost no work.

[0021]   Also, diatomaceous earth processing work such as centrifugal filters and cartridge filters Since no filter or filter replacement is required, the burden on the operator is greatly reduced.

[0022]

【effect】

  As described above, the present invention removes impurities in a solvent with a cyclone classifier, Since the impurities of are separated from the solvent in the distiller, maintenance work is not required. The effect is extremely simple, there is no solvent loss, and efficient solvent purification can be performed. There is.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of the present invention.

FIG. 2 is a circuit diagram showing an enlarged main part of the above.

FIG. 3 is a sectional view showing a conventional centrifugal filter.

FIG. 4 is a sectional view showing a conventional cartridge filter.

[Explanation of symbols]

1 circulation route 3 baskets 7 cyclone classifier 12 Storage tank 13 open / close valve 14 Distiller

Claims (2)

[Scope of utility model registration request] 1. A solvent cleaning apparatus for a dry cleaning machine, wherein a cyclone classifier is provided in a solvent circulation path, and the lower end of the cyclone classifier is connected to a distiller via an opening / closing valve. 2. The solvent cleaning device for a dry cleaning machine according to claim 1, wherein an impurity storage tank is provided at a lower end of the cyclone classifier.