KR200467713Y1 - Twin extruder type oil extracting device for consecutive insert of junk fiber of carpet scrap-cut for car sheet - Google Patents

Abstract

The present invention relates to a twin-extruder type continuous feeding type emulsifying device for recycling waste fiber yarn among carpet cutting scraps for automobile seats. The polyester fiber yarn obtained in the separation process is provided as a bulky short fiber yarn having particles of 5 mm or less like cotton dust, which is melted by a twin screw type extruder, and is thermally decomposed by an emulsifier. The ability to continuously feed into the pulverulent fibers significantly improves the treatment capacity.
That is, the present invention is to separate the first and third crushing of carpet cutting scrap for automobile seats with a high speed crusher, and then separate polypropylene and polyester having different specific gravity by specific gravity separation method, and the particles are 5mm or less like cotton (dust) In order to emulsify the small and bulky polyester short fiber yarn (A) into the pyrolysis furnace (3) of the emulsifying apparatus (1), the nozzle (11) is located outside the pyrolysis furnace (3). The hopper is driven at a low speed by a cylinder 12 provided with an electric heater 12 on the outside so as to be positioned in an open state inside the pyrolysis furnace 3, and a cylinder 15 and 16 with a spiral formed at the distal end thereof. 17) A two-screw extruder 10 for injection into which the raw material A supplied to the melting furnace is melted in the molten state after being primarily heated to a temperature to be dissolved in the cylinder 13 is installed. It is.

Description

Twin extruder type oil extracting device for consecutive insert of junk fiber of carpet scrap-cut for car sheet}

The present invention relates to a twin-extruder type continuous feeding type emulsifying device for recycling waste fiber yarn among carpet cutting scraps for automobile seats. More specifically, the first, second, and third carpet cutting scraps for automobile seats are used. The polyester fiber yarn obtained in the process of specific gravity separation by secondary crushing is provided as bulky short fiber yarn with 5mm or less of cotton dust, which is melted by a twin screw type extruder, Providing a twin-extruder type continuous feeding emulsifier for recycling waste fiber yarn in carpet cutting scraps for automobile seats, which can improve the processing capacity of waste short fibers by continuously feeding them into the pyrolysis furnace. It is.

Carpets that can provide various effects such as noise, vibration, soundproofing, and moisture proof are used as interior materials on the interior floor of automobiles, and these interior materials mainly consist of polypropylene plates and polyester fibers as carpets.

The car seat carpet is a non-woven carpet in which polyester fibers are planted on a polypropylene plate. The composition of the car seat is cut and adhered to the shape of the steel sheet bottom according to the shape of the steel sheet. This is because they are composed of two or more raw materials are mixed with a lot of difficulties in the separation and recycling, so they are classified as industrial wastes are incinerated entirely, there was a problem that causes pollution with energy waste.

In recent years, the development of global raw material prices and the development of low-carbon green growth is the trend of global development.In addition, advanced wastes for automobile seats rely on incineration to achieve thermal efficiency in developed countries, and polypropylene and polyester fiber yarns with different physical properties. It is possible to recycle the short fiber yarn separated by the primary, secondary and tertiary grinding specific gravity separation method as an emulsifying device. (Patent Nos. 10-0441835, 10-0795734)

However, the rate of recycling the foundation waste for automobile seats by recycling as described above is extremely small.

In addition, a recycling method using an emulsifying apparatus has been proposed by improving the regeneration method, but in the case of a known emulsifying apparatus, work is performed at high temperature and high pressure while a predetermined amount of regeneration raw material is put into a pyrolysis furnace. It was difficult to expect the continuity of work due to inconvenience such as lowering the pressure of cracking furnace to atmospheric pressure, and heating it to provide the desired 400-600 degree temperature and pressure after inputting recycled materials at the lowered pressure. As a result, the production costs are rising and economic efficiency is deteriorated.

In this regard, the present inventors recycled car seat carpet cutting wastes using an in-emulsifier to improve the recycling method of polyester short-fiber yarn obtained by crushing and separating primary, secondary, and tertiary wastes using a high-speed crusher. In providing a method, it is possible to continuously feed into the pyrolysis furnace of an emulsifier, thereby greatly improving the processing capacity of polyester (PET) short fiber yarns. The present invention has been completed with the technical problem of devising in providing twin extruder type continuous feeding emulsifying device.

As a solution to the problem, the present invention is a twin extruder for input that can continuously input the recycled raw material into the pyrolysis furnace of the emulsifier without decompression of the pyrolysis furnace in the state of primary heating. The low speed screw is installed in the cylinder where the electric heater is installed, but the screw has a structure that can withstand the high pressure of the pyrolysis furnace when the regeneration material is melted and moved so that the regeneration material can be continuously inputted. It is characterized by a twin-screw extruder connected to the hopper so that the polyester, which is a short-fiber composition with a small amount of melt relative to the volume, can be easily introduced into the pyrolysis furnace.

When using twin twin extruder type continuous feeding type emulsifying device for recycling waste fiber yarn among the carpet cutting scrap for automobile seat provided by the present invention, it is possible to emulsify the waste fiber as it has been difficult due to the problem of conventional input. It is possible to expand the recycling area, and to reduce the energy cost by providing the oil obtained by recycling for fuel.

Since the polyester short fibers are supplied in a sufficiently heated state by the twin extruder feeding extruder and the melting means, the heating cost of the pyrolysis furnace can be reduced.

1 is a schematic view showing the configuration of the thermal decomposition of the emulsifying apparatus applied to the present invention
2 is a cross-sectional plan view of a twin extruder applied to the present invention.
3 is a side cross-sectional view of FIG. 2

Hereinafter will be described on the basis of the accompanying drawings the configuration of the continuous-type emulsifying device for recycling the automobile seat cutting scrap (cutting scrap) provided by the present invention.

Figure 1 shows a schematic view showing the configuration by the thermal decomposition of the emulsifying apparatus applied to the present invention, Figure 2 is a cross-sectional plan view of a twin extruder applied to the present invention, Figure 3 is a side cross-sectional view of FIG. will be.

Car seat carpet is produced by press-cutting a fabric composed of polyester non-woven filament on a polypropylene sheet to fit the bottom plate of a car. At this time, a large amount of scrap is discarded. It can be recycled using scrap waste.

In order to recycle the carpet cutting scrap for automobile seats in which two raw materials are mixed as described above, they must first be separated from each other. Polypropylene and polyester short fibers having different specific gravity can be separated by specific gravity separation method, which is a generally known technique.

In the case of the emulsifying apparatus 1 for emulsifying a conventional waste plastic or the like, a thermal decomposition furnace 3 that is heated by the heating means 2 and withstands high temperature and high pressure, and oil vapor that is pyrolyzed and discharged from the thermal decomposition furnace 3. Condensation pipe (4) for condensing the oil, an oil recovery tank (5) connected to the condensation pipe (4) to recover oil generated by the condensation of oil vapor, and an oil recovery tank (5) and the thermal decomposition It consists of the structure containing the vacuum pump 6 which pressure-reduces internal air pressure of the furnace 3, the oil recovery tank 5, etc. to 1 atmosphere or less.

The present invention is a waste fiber short fiber yarn obtained by separating the carpet cutting scraps (cars) for automobile seats by the high-speed crusher by primary, secondary and tertiary specific gravity separation methods by separating them into polypropylene and polyester. It is characterized in that the raw material A can be continuously supplied to the pyrolysis furnace 3 of the emulsifying apparatus by a twin extruder.

That is, in the present invention, it is possible to continuously supply the polyester raw material (A) separated by the specific gravity separation method to the pyrolysis furnace (3), so that the nozzle 11 in the pyrolysis furnace (3) is located in the open state. Install a 2-screw extruder 10 for feeding.

The two-screw extruder 10 for feeding is a pair of screws 15 and 16 which are driven at a low speed by being supplied with power by a motor and a reducer 14 to a cylinder 13 having an electric heater 12 installed outside. Spirally formed at the tip of the screws (15) and (16) so that the screws (15) and (16) can withstand the high pressure of the pyrolysis furnace (3) when melting and moving the raw material (A). The raw material A supplied to the input hopper 17 is heated to be dissolved in the cylinder 13, melted in a molten state, and then introduced into the pyrolysis furnace 3 continuously heated to a temperature of 400 to 600 degrees. It was configured to be. In addition, the height of the screw blade is preferably formed so as to be at least half the diameter of the cylinder (the depth of the groove between the screw blades is deep). In addition, although not shown, the two-screw extruder 10 for feeding may have the screw 15 and 16 edges of the polyester raw material A in the advancing direction, that is, in the direction of the input hopper 17 toward the pyrolysis furnace 3. It can be formed so that the height is low (the depth of the groove between the screw blades is shallow). In the vicinity of the feed hopper 17, the light and bulky polyester raw material (A) should be pulled and transported sufficiently, while the ratio of the raw material of the polyester is increased as it proceeds toward the pyrolysis furnace (3). This is because it is easy.

At this time, the injection hopper 17 is a small, bulky and light polyester elastic short fiber yarn (A) of less than 5mm, as shown in Figure 3 so as to continuously feed the screw (15) (16) ) Is preferably formed wider than an extension line extending up and down the center of each screw 15, 16 so as to sufficiently pull and transport the raw material A.

The raw material of the waste fiber of the present invention (A) is bulky like cotton, and is continuously transferred to the thermal decomposition furnace while being forcibly transported by the screws (15) and (16) using a twin extruder (10). 3) It is possible to correct the continuity of the work by the configuration that is put in, and to supply the pyrolysis furnace (3) in the state of being firstly heated to 150 ~ 200 degrees that can be dissolved in the heating of the pyrolysis furnace (3) To reduce the fuel consumption required.

In the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of protection of the present invention should not be limited to the described embodiments, but should be defined by equivalents as well as the following claims.

1: emulsifier 2: heating means
3: pyrolysis furnace 4: condensation tube
5: oil recovery tank 6: vacuum pump
A: Raw material 10: twin screw extruder
11: Nozzle 12: Electric Heater
13: Cylinder 14: Motor and Reducer
15, 16: screw 17: feed hopper

Claims (1)

Carpet cutting scraps for automobile seats are pulverized first, second and third by high speed crusher, and then polypropylene and polyester with different specific gravity are separated by specific gravity separation method. In the case of emulsifying the large polyester short fiber yarn (A) into the pyrolysis furnace (3) of the emulsifying apparatus (1),
At the outside of the pyrolysis furnace 3, the nozzle 11 is driven at a low speed to the cylinder 13 in which the electric heater 12 is installed outside so that the nozzle 11 is located in the open state inside the pyrolysis furnace 3, and the spiral is dense at the tip. The raw material A supplied to the input hopper 17 by combining the formed screws 15 and 16 to be melted in the molten state by first heating to a temperature to be dissolved in the cylinder 13 and continuously thermally decomposing the furnace ( 3) to install a two-screw extruder 10 for injection into
The height of the blades (15) and (16) is formed to be at least half the diameter of the cylinder (13),
The height of the screw 15, 16 blades are lowered toward the pyrolysis furnace 3 in the direction of the input hopper 17,
The input hopper 17 is a twin twin for recycling waste fiber yarns in the carpet cutting scrap for automobile seats, characterized in that formed by a wider than the extension line extending vertically up and down the center of each screw (15, 16) Extruder type continuous feeding emulsifier.

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