JPS634482Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a recycling device for solvent sewage containing moisture, dirt, etc. discharged from an organic solvent cleaning machine such as trichlorethylene, and its purpose is to make the recycling device compact. This aims to make it easier to handle, reduce steam leakage and indoor contamination, increase regeneration efficiency, and shorten regeneration time.

The drawings showing the embodiments of the present invention will be explained below. The drawing is a schematic diagram of a regeneration device. 1 is a liquid storage tank, 2 is a drain tank, which has a sealed structure, and has a steam passageway above each other. I will contact you in part 3. 4 is the cap of the drain tank 2.

5 is a cold water circulation pipe that is supplied from the outside and returns to the outside; 5a is a coil portion of the cold water circulation pipe 5, which is wound in plural in the drain tank 2 to form a large area; The inside of the drain tank 2 is maintained cooled by circulating the water from the drain tank 2 as described later. Therefore, when steam enters the drain tank 2 from the steam passage 3, it condenses and gradually accumulates,
Additionally, water is separated into the upper layer of the organic solvent layer. 6
is separated water.

A drain port 7 is opened at a certain height of the drain tank 2 so that overflowing water can be drained to the outside.

Reference numeral 8 denotes a regenerated solvent liquid guide tube, which is connected to the coil portion 5a.
Inside the drain tank 2, the bottom part 8a is provided upward, and the introduction opening 8b is provided near the bottom surface of the drain tank 2, and the drain tank 2 is supported upright.

Reference numeral 9 denotes a drain pipe for overflowing recycled solvent, which pierces the bottom of the drain tank and stands up at a certain height in the guide pipe 8, so that when the recycled solvent exceeds a certain level, the overflowing amount can be sequentially discharged to the outside. Do it like this. still,
10 is a draining pot. A heating tank 11 is housed and fixed in the liquid storage tank 1 . Inside the heating tank 11, a heat source section 12 such as a heater that can be supplied with electricity from the outside is provided at the center.

Reference numeral 13 denotes a waste liquid discharge pipe, one end of which is connected to a waste liquid outlet 14 from an organic solvent washer (not shown) to allow contaminated organic solvent to flow in; The heated coil portion 13a is formed by winding the pipe a plurality of times on the outside of the portion 12.
is provided to form a large heated area, and the steam port 13b at the other end is formed to protrude from the heating tank 11 and open facing the steam passage portion 3 of the liquid storage tank 1. Therefore, the solvent waste liquid passing through the waste liquid discharge pipe 13 is heated in the heated coil portion 13a over a longer period of time and is discharged as steam from the steam port 13b. At this time, dirt such as cleaning peeling pieces contained in the dirty liquid falls from the steam port into the liquid storage tank 1 and is separated from the dirty liquid. Further, the liquid storage tank 1 also stores a non-recyclable liquid of contaminated solvent. In addition, heating tank 1
1 may be provided with a heat transfer medium 15 that effectively transfers the energy of the heat source section 12 to the heated coil section 13a, and in this case, a chemical liquid with a low boiling point is stored in the heating tank. This allows the solvent solution to be heated in a shorter time, and
The heat source can be selected depending on the solvent. 16 is the heat medium hopper.

17 is a liquid outlet of the heating tank 11, 18 is an outlet of the liquid storage tank, and 19 is a float switch of the liquid storage tank.

As described above, the present invention forms a sewage flow path in a heating tank having a heat source section using a heating coil section heated by the heat source section, forms sewage vapor from the end of the flow path, and then The inflowing drain tank has a cold water circulation pipe arranged in a coil to store condensed liquid, and the overflow water is discharged from the drain pipe to the outside, so that recycled solvent can be efficiently recovered from contaminated solvent. Moreover, it can be mass-produced in a short period of time, is small and easy to handle, and has a closed tank structure, so there is little steam leakage and indoor contamination can be prevented, making it a highly practical idea.

[Brief explanation of the drawing]

The figure is a schematic configuration diagram of a playback device. DESCRIPTION OF SYMBOLS 1...Liquid storage tank, 2...Drain tank, 3...Steam passage part, 5...Cold water circulation pipe, 5a...Cooling coil part, 8...Guidance pipe, 9...Drain pipe, 11...Heating tank, 12...Heat source part, 13 …sewage discharge pipe,
13a... Heated pipe section.

Claims (1)

[Scope of utility model registration request] A liquid storage tank 1 and a drain tank 2 having a sealed structure are connected to each other through a steam passage section 3 above each other, and a coil section 5a of a cold water circulation pipe 5 is provided inside the drain tank 2, and a coil section 5a of a cold water circulation pipe 5 is provided inside the coil section 5a. An open guide pipe 8 and an overflow drain pipe 9 with an upright opening are provided in the same pipe to communicate with the outside, a heating tank 11 is housed in the liquid storage tank 1, and a heat source part 12 is provided in the heating tank 11. , a heated coil portion 13a of the waste liquid discharge pipe 13 is placed outside the heat source portion 12.
, one end of which is connected to the waste liquid delivery port from the organic solvent cleaning machine, and the other end of which is provided with a steam port 13b facing the vapor passage section 3 of the liquid storage tank 1. playback device.