KR20040096956A - A Device separates the metals and polyethylene resins from the discarded telephone cables. - Google Patents

Abstract

PURPOSE: A device is provided to achieve improved safety and prevent an environmental contamination by lowering the temperature and pressure of solution tank. CONSTITUTION: A device comprises a solution pipe(1), evaporation pipes(2,3), a condenser(4) for condensing toluene, a vacuum storage tank(5), a solvent storage tank(6), a thermal medium boiler, and environment related units. A toluene serving as an organic solvent is mixed with a cyclo hexane in a solution tank, and polyethylene resin and metal are completely separated from waste telephone cables.

Description

A Device separates the metals and polyethylene resins from the discarded telephone cables.

The present invention relates to an apparatus for recovering a resin oil forming a coating together with recovering metals (copper and aluminum) from a closed communication line or a closed optical communication line.

As described above, the present invention has conventionally used a method of incinerating resin in an incinerator or peeling a coating from a peeler in order to recover copper and aluminum from a waste communication line and a waste wire, but the method by incineration causes secondary pollution. (Environmental Hormone, Dioxin), and the method of peeling off the coating takes a lot of time, expense, recovery rate, and the added value is low in reusing the resin. Is required.

The present invention devised by the above problems is very efficient by using a method of separating the coating resin and the metals in a short time by the method of injecting toluene and hexaone into the melt tube in a dissolution tube by a mechanical and physical method. The purpose is to enable separation.

1 is a schematic diagram of a dissolution tube, and FIG. 2 is a schematic view of a secondary evaporation tube.

3 is a process diagram

[Code Description in Drawings]

Figure 1

1. Melting tube 2. Lychee PIPE 3. Melting tube door

4. Melting tube door flange 5. Dissolving resin outlet 6. Cleaning solvent outlet

7. Load bogie 8. Solvent vapor outlet 9. Manometer

10. Pressure automatic valve 11. Pressure SENSER 12. Automatic SPRAY valve

13. Solvent circulation PUMP 14. AIR valve 15. Solvent spray nozzle

Figure 2

1. Evaporation tube 2. Fruit jacket 3. Fruit inlet

4. Fruit outlet 5. Agitator blade 6. Resin discharge SERW

7. Agitator MOTER 8. Extrusion MOTER 9. Resin Extruder

10. Manhole 11. Sight hole 12. Solvent evaporation port

13. Lighting fixture 14. Melting inlet 15. Thermometer

Figure 3

1. Melting tube 2. Primary evaporation tube 3. Secondary evaporation tube

4. Condenser 1,2,3 5. Vacuum Storage Tank 1,2,3 6. Solvent Storage Tank 1,2,3

7. Condenser 8. Condensation Toluene Storage Tank 9. Vacuum Filtration Tank

10. Vacuum tank 11. Sealed vacuum pump 12. Solvent-containing oil storage tank

13. Absorption tower 14. Solvent absorption OIL dropping tank 15. Toluene PUMP

16. OIL PUMP 17. Solvent absorption OIL evaporator 18. OIL storage tank

19. Condenser 20. Condensation Solvent Storage Tank 21. Chiller Freezer

22. Refrigerant storage tank 23. Resin extruder 24. Fruit boiler

The present invention can be said to be a device made by dissolving polyethylene resin from the closed communication line and optical communication line to separate the polyethylene resin and metals to maximize the recycling of resources to make the living environment humane. Here, the waste communication line may use the grinding method when not using the melting method, but in the case of the closed optical communication line, in addition to this method, incineration is inevitable. Incineration causes environmental hormones and dioxins, which causes pollution, which can have a fatal effect on the environment. In addition, the method using the grinding has the following disadvantages.

1) Due to noise and dust, the working environment is not good and the facility burden is high.

2) The recovery rate of metals (copper) is reduced by 5 to 8% and the yield rate is lowered.

Due to the above problems, there is no choice but to dispose of the closed communication line and the closed optical communication line to the melting facility. In the present invention, the waste communication line and the closed optical communication line are put in the dissolution tube, and then toluene and hexaon are put in a heat boiler, and then heated using a fruit boiler to dissolve the polyethylene resin in a saturated state to dissolve the toluene and cyclohexanone in the evaporation tube. The vacuum evaporation concentration method is carried out. At this time, the vacuum pump is operated. When the vacuum pump is operated, the oil vapor of the solvent is discharged out through the vacuum pump. The patented method (No. 115416) uses a cleaning tower to catch the vapor. This method has a recovery rate of 80 to 85%, so the rest of the method is inevitably blown into the atmosphere, but the apparatus applied in the present invention applies the absorption tower using the bubble cap having the highest absorption rate, so that the oil vapor absorption rate of the solvent is increased. Because 98-99% recovery is possible, the device does not produce pollution significantly rather than the patented method. All. In addition, the air passing through the apparatus is discharged to the atmosphere after passing through the activated carbon once more. After dissolving the polyethylene resin in the dissolution tube and transferring it to the evaporation tube, a trace amount of the solvent remaining in the metal (copper) remaining in the dissolution tube was evacuated using a vacuum pump and then showered with air after vacuum evaporation to recover 100% solvent. Since the door is opened and the metal (copper) is taken out, the device is constructed so that the solvent is not volatilized to the atmosphere even when the door is opened.

Since the above patented device is not configured as described above, when the door of the dissolution tube is opened, a small amount of remaining solvent is volatilized in the air and blown away, causing pollution. In addition, the pre-patent method for operating the melting pipe has a high fuel and risk burden because the working pressure is 4 to 5 kg / cm 2 and the heating temperature is 135 to 150 ° C. However, in this method, it is possible to extract resin and metals completely by extracting 5% of hexaone to toluene at a pressure of 0 ~ 2kg / ㎠ and a heating temperature of 110 ℃ ~ 135 ℃. It is a device that can extract resin.

When described in detail by the accompanying drawings

The apparatus of the present invention is a condenser (FIG. 3, ④ 1 to 3), a vacuum storage tank (FIG. 3, ⑤ 1 to 3), a storage tank to condense toluene, a dissolution tube (FIG. 3, ①), an evaporation tube (FIG. 3, ② ③). (Fig. 3, ⑥1 to 3), vacuum pump (Fig. 3, ⑪), fruit boiler (Fig. 3, ) Is a productive device, Figure 3, Up until now, the device is environmentally relevant.

Here, the melting tank is filled with the closed communication line or closed optical communication line (Fig. 1, ⑦) and pushed into the melting pipe along the rail. After pushing, close the dissolution pipe door (Fig. 1, ③) and fasten the bolt to the Hurenji (Fig. 1, ④) to prevent the solvent from leaking. Then, toluene and hexaon are added to the dissolution tube, and then heated with a fruit boiler to operate the valve (Fig. 1, ⑧) to make the solvent saturated within the dissolution tube to make the saturation state. Thereafter, the solvent circulating pump (Fig. 1, Fig. 1) is operated to open the valve (Fig. 1, Fig. 1) to inject the solvent. The U-shaped curved pipe was installed on the suction side of the solvent circulation pump (inside of the melting pipe) to prevent clogging of the nozzle.

By operating the valve ⑧ of Fig. 1 while operating the dissolution tube so that the saturation always reaches the maximum, the polyethylene in the dissolution tube dissolves quickly. In this way, the polyethylene dissolved in the solvent is sent to the primary evaporation pipe (FIG. 3, ②). The solvent is evaporated to about 80% in the primary evaporator. At this time, the chiller freezer (Fig. 3, Cooling tank using () Cool the coolant to about 5 ℃ and send it to the condenser (Fig. 3, ⑦) to condense the oil vapor as much as possible and collect it in the storage tank (Fig. 3, ⑧).

After the condenser (Fig. 3, ④ 1 to 3) is stored in the vacuum storage tank (Fig. 3, ⑤), it is sent to the storage tank (Fig. 3, ⑥ 1 to 3). After evaporating the solvent in the primary evaporator, it is transferred to the secondary evaporator, where the fruit temperature is heated to about 250 ° C. to remove 100% of the solvent component contained in the resin. At this time, by operating the stirrer (Fig. 2, ⑦) MOTER stir the solvent in the stirrer blade (Fig. 2, ⑤) to evaporate well. After removing 100% of the solvent from the secondary evaporation tube and send the screw down through the (Fig. 2, ⑥) to produce a water support fee through the extruder (Fig. 2, ⑨).

In order to evaporate the solvent at a low cost, vacuum distillation is performed. At this time, the installed equipment is a vacuum pump (Fig. 3, 되면). When the vacuum pump is operated, full vapor of the air and solvent is generated in all the devices installed in front of the vacuum pump. It comes out through the vacuum pump.

The solvent vapor must be collected at the environmental level and then reduced and used again. So, in this device, when oil vapor of solvent flows down the high boiling oil from the dripping tank (Fig. 3, ⑭) to absorption tower (Fig. 3, ⑬), each stage of absorption tower has about 90 absorption CAPs. In this case, all the oil vapor of the solvent is absorbed by OIL by absorption CAP. OIL containing a lot of solvent will be collected in the storage bulk (Fig. 3, ⑫). At this time, the oil containing solvent is circulated once in the sealing vacuum pump instead of water, and the solvent is absorbed into the oil once more when the vacuum pump is operated. ) And heat about 110 ℃, the solvent evaporates and condenser (Fig. 3, Through the storage tank (Fig. 3, Gather) In this way, the separated oil and the solvent are reused, which is an environmental facility. Conventionally, the method using the cleaning tower has a low recovery rate (80 to 85%) to cause pollution. This step does not cause pollution since the solvent recovery rate is 98 to 99%.

As described above, according to the present invention, by adding 5% of hexaone to toluene cpa as a solvent to a dissolution tank, the present invention is made at a low temperature (4-5 kg / cm 2) and high temperature (135-150 ° C.) process. 110 ~ 135 ℃) and low pressure (0 ~ 2kg / ㎠), dissolution is possible and solvent recovery rate can be recovered more than 98% in absorption tower using sowing column, which saves fuel cost and has no solvent loss. It can be said that there is no device.

In the present invention as described above, it is possible to lower the temperature of the dissolution tank (110-135 ° C.) to dissolve and separate the polyethylene resin from the waste communication line and the closed optical communication line. It can be said that shaving is big.

Claims (1)

A device that completely separates polyethylene resin and metal from waste communication line and closed optical communication line by adding cyclohexan to toluene, an organic solvent, in the dissolution tank.