JPH071050U - Styrofoam melting device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] A small-sized, space-saving and economical Styrofoam dissolution is achieved by dissolving Styrofoam with a solvent and collecting and reusing the used solvent. [Configuration] Melting chamber 21 in which styrofoam is charged
When the solvent is supplied from the solvent supply means, the polystyrene foam is dissolved by the solvent, but the solvent used in the dissolution chamber 21 is evaporated by the solvent evaporation means, and the evaporated solvent is cooled by the solvent cooling means to supply the solvent. Collected by means.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a polystyrene foam melting apparatus for melting waste polystyrene foam that is no longer needed after use.

[0002]

[Technical background]

 Styrofoam (polystyrene) is widely used in large quantities as a packaging material for various products such as electric appliances, tableware, various food containers, and a container for storing seafood because of its light weight and excellent elasticity and heat insulating properties. However, since it is bulky after use, it is destined to become a large amount of garbage, which is one of the major causes of the recent garbage problem. Therefore, various dissolving devices for dissolving the expanded polystyrene have been developed from the viewpoint of reducing the size and recycling of the discarded expanded polystyrene.

The present invention is one of such melting devices, and it is an object of the present invention to provide a styrofoam melting device which is small in size, space-saving, economical and easy to use.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a dissolving chamber for dissolving Styrofoam, a solvent supplying means for supplying a solvent to the dissolving chamber, a solvent evaporating means for evaporating a solvent used in the dissolving chamber, and a solvent evaporating means. And a solvent cooling unit that cools the solvent evaporated by the above and collects it in the solvent supply unit.

[0005]

[Action]

 According to the present invention, when the solvent is supplied from the solvent supply means to the dissolution chamber in which the polystyrene foam is put, the polystyrene foam is dissolved by the solvent, but the solvent used in the dissolution chamber is evaporated by the solvent evaporation means, The evaporated solvent is cooled by the solvent cooling means and collected by the solvent supply means.

[0006]

【Example】

 FIG. 1 is an external perspective view, and FIG. 2 is an internal configuration diagram.

The styrofoam melting apparatus 1 is divided into a melting section 2 and a cooling section 3 on the left and right sides.

The melting section 2 is provided with a melting chamber 21 on the upper side and a heating section 22 on the lower side, and a solvent recovery path 23 that is vertically connected to the heating section 22 and is adjacent to the cooling section 3. Has been.

The melting chamber 21 dissolves the Styrofoam S charged from the charging port 21a by the solvent Y supplied from the cooling unit 3, and the lower portion is gradually inclined downward and is inclined, and the opening 21b is formed at the lower end. Are formed. A heating unit 22 having a heater 22a therein is arranged in the vicinity of the opening 21b, and a tray 22b of Styrofoam S that melts and drops from the opening 21b is placed on the heating unit 22. The tray 22b is put in and taken out from the entrance 22c. In addition, 21c and 22d are opening / closing doors for opening and closing the inlet 21a and the inlet / outlet 22c, respectively, and 22e is a spring for supporting the lower part of the heating portion 22.

On the other hand, the cooling unit 3 sends a solvent tank 31 for storing the solvent Y, a cooler 32 for cooling the solvent tank 31, a refrigerator 33 connected to the cooler 32, and a solvent Y from the solvent tank 31. It is configured to include a pump 34.

The pump 34 is connected to a delivery pipe 34 b that branches from the main pipe 34 a and extends to the upper portion of the solvent tank 31, and a delivery pipe 34 c that extends to the upper portion of the dissolution chamber 21. The delivery pipe 34b has a large number of small holes 34bb formed in a portion of the solvent tank 31, and the solvent Y is sprayed in a shower shape in the solvent tank 31, while the delivery pipe 34c has a plurality of showers 34cc in the dissolution chamber 21. It is connected and the solvent Y is sprayed in a shower.

A solvent recovery fan 35 is arranged between the solvent tank 31 and the solvent recovery passage 23. The solvent recovery fan 35 connects the solvent tank 31 and the solvent recovery path 23, and the used solvent Y evaporated from the heater 22a of the heating unit 22 by the suction force of the solvent recovery fan 35 is used from the solvent recovery path 23. The solvent is collected in the solvent tank 31. In addition to the solvent recovery fan 35, a vacuum or the like may be used as the solvent Y recovered in the solvent tank 31.

Reference numeral 36 is an operation panel for performing various operations, and 37 is a ball wheel rotatably provided at the lower four corners of the apparatus 1. The solvent Y is, for example, a mixture of 2.2-dichloro-1.1.1-trifluoroethane (CF3 .CHCl2).

In such a configuration, with the refrigerator 33 constantly operating to cool the solvent Y, first, the heater 22a of the heating unit 22 is operated to wait until the temperature at which the solvent Y evaporates. Then, when the pump 34 is operated while the Styrofoam S is being charged into the melting chamber 21 from the charging port 21a, the solvent Y is injected into the solvent tank 31 in a shower shape from the small hole 34bb of the delivery pipe 34b. At the same time, it is sprayed into the melting chamber 21 from the shower 34cc of the delivery pipe 34c in a shower shape. The styrofoam S is melted in the melting chamber 21 where the solvent Y is sprayed, and falls from the opening 21b into the tray 22b. Along with the drop of the dissolved polystyrene foam S, the used solvent Y also drops into the tray 22b. Then, the solvent Y is evaporated and vaporized by heating the heater 22a of the heating unit 22. The vaporized solvent Y is sucked by the solvent recovery fan 35, guided into the solvent recovery passage 23, passes through the solvent recovery fan 35, and is recovered in the solvent tank 31. The vaporized solvent Y collected in the solvent tank 31 is cooled by the cooler 32 and liquefied. When the styrofoam S in the melting chamber 21 is completely melted, the pump 34 is stopped and only the injection of the solvent Y in the melting chamber 21 and the solvent tank 31 is stopped. In this state, the operation is continued until the recovery of the solvent Y is completed, and when the recovery is completed, all the operations are stopped.

Although the present invention has been described as one in which styrofoam S (polystyrene) is subjected to dissolution treatment, the present invention is not limited to this, and the present apparatus 1 is capable of subjecting various plastics such as polypropylene, vinyl acetate, ethylene EVA to dissolution treatment. Is something that can be done.

[Effect of device]

 As is clear from the above description, according to the present invention, not only is the Styrofoam dissolved by a solvent, but the used solvent is also recovered and reused, so it is compact and does not take up a lot of space, and it is economical to use. Can be dissolved.

[Brief description of drawings]

FIG. 1 External perspective view

FIG. 2 Internal configuration diagram

[Explanation of reference numerals in the drawings]

 1 Styrofoam Melting Device 2 Melting Section 21 Melting Chamber 22 Heating Section 22a Heater 23 Solvent Recovery Channel 3 Cooling Section 31 Solvent Tank 32 Cooler 33 Refrigerator 34 Pump 34b Delivery Pipe 34bb Small Hole 34c Delivery Pipe 34cc Shower 35 Solvent Recovery Fan

Claims (1)

[Scope of utility model registration request] 1. A melting chamber for melting Styrofoam, solvent supply means for supplying a solvent to the melting chamber, solvent evaporating means for evaporating the solvent used in the melting chamber, and cooling the solvent evaporated by the solvent evaporating means. And a solvent cooling unit for collecting the solvent in a solvent supply unit.