JPH088796Y2 - Solvent recovery device for cartridge filter in dry cleaning - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a solvent recovery device for a used cartridge filter in a dry cleaning factory or the like.

(Prior art) At a dry cleaning plant, etc., a cartridge-type filter-type filtration device is installed to filter out the dirt dissolved in the solvent (perchlorethylene, etc.) used during dry cleaning. The lost Cartridge Filter is taken out and replaced with a new one in a timely manner.

By the way, the cartridge filter has a diameter of about 30.
Since it is about 50 cm in height and weighs about 40 kg in a swollen state, it is heavy, so it can be stored in the atmosphere for a while and then transported to the incinerator in a slightly light state for incineration. Has been done.

(Problems to be solved by the device) The cleaning solvent remaining in the above used cartridge filter reaches about 20 kg per bottle, which scatters during storage and transportation and causes environmental pollution such as air and groundwater. It causes the problem of.

The present invention solves the above-mentioned problems, that is, by efficiently recovering the cleaning solvent from the used cartridge filter, the solvent can be reused, and it can be safely stored in and out of the factory and transported to the processing site. The purpose of the present invention is to provide a simple device for hygiene.

(Means for Solving the Problems) In the present invention, the steam generation chamber A is provided at the bottom of the processing container body.
Is formed integrally with the vapor processing chamber B for accommodating the cartridge filter via the perforated plate, the cartridge filter is placed on the perforated plate, and the upper part is sealed with the lid plate. In addition to the above, a gas recovery pipe for discharging the indoor gas to the outside is attached.On the other hand, the gas recovery pipe is made to pass through the inside of the condenser to liquefy and cool the gas inside the pipe, while the other gas is liquefied and cooled. Is provided at a position higher than the steam generation chamber A of the processing container main body, and the moisture remover is equipped with a solvent recovery pipe and a return water return pipe, and the solvent at the bottom of the moisture remover recovers the solvent via the former. It is characterized in that the divided water is returned to the water vapor generating chamber A through the latter into the container.

(Operation) The vaporization of the solvent is carried out by the energy of the water vapor, and the cooled and condensed park is recovered in the park recovery container by the recovery pipe provided at the bottom of the water condenser.

On the other hand, the separated separated water is returned to the steam generation chamber again.

(Example) FIG. 1 is a schematic vertical sectional view of the device of the present invention, and FIG. 2 is a sectional view taken along line XX of FIG.

Reference numeral 1 is a box-shaped processing container main body, and a heating tube 2 is provided on the bottom surface.
Are arranged in parallel in upper and lower two stages and are formed in the steam generation chamber A. 3 is a perforated plate which is horizontally arranged at a certain height position above the perforated plate 3 and is provided with a large number of through holes 4.

B is an evaporation treatment chamber in which the used cartridge filter 5 is placed on the perforated plate 3, and a gas recovery pipe 6 is attached to the upper portion of the chamber. 7
Is a lid plate on the upper surface of the container body 1, which is designed to be tightly closed by using a packing 8 and a tightening bolt nut 9.

Reference numeral 10 is a condenser for liquefying and cooling the gas from the gas recovery pipe 6, 11 is a water vaporizer located at a position higher than the steam generation chamber A of the main body of the processing vessel, and the liquefied gas m is on the bottom side of the vessel. Is retained in the upper part, and the upper part is water n.
Reference numeral 12 denotes a solvent recovery pipe, which is adapted to separately store the liquefied gas in a recovery container 13 via a pipe end P inserted in the bottom of the vessel.

Reference numeral 14 is a return water return pipe, and an overflow portion in the water vaporizer 11 is returned to the steam generation chamber A via a three-way valve 15.

In the drawing, 16 is a drain trap and 17 is a drain discharge valve.

The device of the present invention having the above-mentioned structure will be described below in terms of its usage. A certain amount of water is poured into the bottom of the processing container body 1, and the used cartridge filter 5 is placed on the perforated plate 4 and the cover plate 7 is closed. Condenser 10
The cooling water is passed through to the operating state, and steam is supplied to the heating pipe provided in the steam generation chamber A of the processing container body 1.
It is ejected into the inside of the evaporation chamber to accelerate the evaporation of the solvent in the cartridge filter 5.

The solvent to be evaporated is the gas recovery pipe 6 condenser.
It reaches the drainer 11 via 10 and is separated into a solvent and water in the device 11, and the solvent is recovered in a solvent recovery device 13 via a solvent recovery pipe 12. It should be noted that the water in the water container 11 is always returned to the steam generation chamber A of the processing container body 1 via the pipe 14 for the overflow.

When the park is no longer collected after a certain period of time, the three-way valve 15 is operated to stop the reflux of the split water into the steam generation chamber A and open the drain valve 17. Then, when the distilled water is no longer collected from the three-way valve 15, the supply of heating steam is stopped, and the cooling water of the condenser 10 is also stopped,
It is left for about half a day, and the lid plate 7 is opened when the inside of the container body 1 reaches normal temperature, and the cartridge spring filter 5 is taken out.

(Effects of the Invention) The present invention is a device having a compact and simple structure as described above, and can easily and economically recover the solvent of the cartridge filter in the dry cleaning. Since it is refluxed into the chamber A and repeatedly used, the contaminated water in which the solvent is dissolved is hardly generated, and only the solvent can be efficiently recovered.

According to an experiment of the present invention, a used cartridge filter (diameter 33 cm, length 47 cm) in a cleaning plant
Two pieces were put into this device and 30 kg of solvent could be recovered in a relatively short 12 hours.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional view of the device of the present invention, and FIG. 2 is a sectional view taken along line XX of FIG. 1 ... Processing container body, 3 ... Perforated plate, 5 ... Cartridge filter, 6 ... Gas recovery pipe, 10 ... Condenser,
11 …… Moisturizer, 13 …… Collection container, 14 …… Divided water return pipe

Claims (1)

[Scope of utility model registration request] 1. A steam generating chamber A is provided on a bottom surface of a processing container body.
Is formed integrally with the vapor processing chamber B for accommodating the cartridge filter via the perforated plate, the cartridge filter is placed on the perforated plate, and the upper part is sealed with the lid plate. In addition to the above, a gas recovery pipe for discharging the indoor gas to the outside is attached.On the other hand, the gas recovery pipe is made to pass through the inside of the condenser to liquefy and cool the gas inside the pipe, while the other gas is liquefied and cooled. Is provided at a position higher than the steam generation chamber A of the processing container main body, and the moisture remover is equipped with a solvent recovery pipe and a return water return pipe, and the solvent at the bottom of the moisture remover recovers the solvent via the former. A solvent recovery device for a cartridge filter in dry cleaning, characterized in that the divided water is returned to the container through the latter to the steam generation chamber A.