KR100811562B1 - Functional inorganic material and polyolefin resin mixing system - Google Patents

Abstract

The present invention relates to a functional inorganic material and a polyolefin resin mixing system, and more particularly, to a functional inorganic material such as illite and polypropylene polyethylene, which are finally formed into a film or slit yarn form and are mainly used for grains and food packaging materials. The present invention relates to a functional inorganic material and a polyolefin resin mixing system in which a polyolefin resin is uniformly mixed in a polymer state without changing physical properties.

Functional Inorganic, Polyolefin, Mixing System, Vortex, Polymer

Description

Functional inorganic and polyolefin resin mixing system {FUNCTIONAL INORGANIC MATERIAL AND POLYOLEFIN RESIN MIXING SYSTEM}

1 is a block diagram showing the overall configuration of a functional inorganic and polyolefin resin mixing system proposed as a preferred embodiment of the present invention,

2 is a view showing in detail the configuration of the grinding roller in the mixing system according to the present invention.

**** Explanation of symbols for the main parts of the drawing ****

1. Functional inorganic and polyolefin resin mixing system

10. Hopper section 11. First hopper

11a. outlet

12. Second hopper 12a. outlet

20. Grinding unit 21. Grinding roller

21A. Drive roller 21A-a. Unevenness

21B. Follow roller 21B-a. Unevenness

22. Outlet

30. Vortex circulation 31. Spiral feed pipe

32. Compressor

40. Stirring section 41. Mixing melter

41a. Outlet 41b. Air outlet

42. Stirring part 42a. Stirring rod shaft

43a. Upper stirring blade 43b. Lower stirring blade

50. Lead Screw

The present invention relates to a functional inorganic material and a polyolefin resin mixing system, and more particularly, finally formed into a film or slit yarn form, functional inorganic materials such as illite used mainly in grains and food packaging materials, polypropylene polyethylene, etc. The present invention relates to a functional inorganic material and a polyolefin resin mixing system for uniformly mixing a polyolefin resin in a polymer state without changing physical properties.

As is well known, polyolefin resins comprising polyethylene and polypropylene have high molecular weight and high crystallinity, have a relatively high melting point, a relatively high softening temperature, very low specific gravity, and excellent strength and durability.

In particular, the polypropylene is very suitable as a packaging material because of its excellent transparency, and is mainly used as a material for the storage and transportation of various foods such as grains, seaweeds and meats.

In recent years, research on various functional inorganic materials such as illite has been found inherent efficacy, and in particular, the illite has been found to have an effect of improving the storage of food due to the excellent far-infrared radiation efficiency.

However, in spite of the efficacy of these functional inorganic materials, it is very difficult to uniformly mix the functional inorganic materials with the polyolefin resin without any change in physical properties, which is an obstacle to commercialization.

Accordingly, the current, but it is adopted method for molding a mixture of the master batch chip, a large amount of functional inorganic material in general polyolefin-based chip, which is very complex, its manufacturing process, and increases the power consumption as well as high manufacturing costs, and It is difficult to maintain a uniform mixing state with each other, and has a problem that it is difficult to apply to high quality products or products requiring precision.

An object of the present invention devised to solve the above problems is a functional inorganic and polyolefin resin mixing system for uniformly mixing functional inorganic materials such as illite and polyolefin resins such as polypropylene polyethylene to form a polymer state without changing physical properties. In providing.

The above object is achieved by the following configuration provided in the present invention.

Functional inorganic and polyolefin resin mixing system according to the present invention,

A hopper unit including a first hopper for self-dropping the charged functional inorganic material by quantitatively through the outlet provided with a metering valve, and a second hopper for self-dropping the charged polyolefin-based resin quantitatively through the outlet provided with the metering valve Wow;

A pulverizing unit which pulverizes the functional inorganic material and the polyolefin-based resin, which are quantitatively input from the hopper unit, through the pulverizing roller, and discharges the pulverized functional inorganic and the polyolefin-based resin by the quantitative valve through a discharge port provided with a quantitative valve;

Vortex circulation including a spiral conveying pipe which is a conveying path of the functional inorganic material and the polyolefin resin discharged from the crushing unit, and a compressor which blows compressed air into the spiral conveying pipe to provide a conveying pressure of the functional inorganic material and the polyolefin resin. Wealth;

The distal end of the helical feed tube of the vortex circulation unit is installed in communication with the upper portion, and provided with a discharge port provided with a metering valve, to form a receiving space of the functional inorganic material and the polyolefin resin discharged through the helical feed tube, A mixing melting tank configured to discharge the functional inorganic material and the polyolefin-based resin discharged through the helical transfer pipe by self-weighting, and the compressed air discharged and supplied by the compressor to the outside through an air discharge port; It is installed inside the mixing tank, and mixed with the functional inorganic material and polyolefin resin which is discharged from the helical conveying pipe and falling in its own weight, and rotates the functional inorganic material and the polyolefin resin laminated on the bottom at high speed to the polyolefin system through frictional heat A stirring unit including a stirring blade unit forming a polymer in which a resin and a functional inorganic material are mixed and melted; And

It characterized in that it comprises a lead screw for discharging the polymer consisting of a polyolefin-based resin and a functional inorganic material discharged in a quantitative manner through a discharge port provided with a metering valve in the mixing melting tank in one direction.

In the present invention, the air discharge port is formed in the upper part of the mixing molten tank in which the spiral feed pipe is installed in communication, and the functional inorganic material and the polyolefin resin discharged through the spiral feed pipe are dropped by their own weight and supplied by a compressor. Compressed air is discharged to the outside through the air outlet,

The grinding roller is composed of a driving roller and a driven roller which are rotated in close contact with the outer diameter surface, and the surface of these driving rollers and driven rollers is formed with irregularities, so that the grinding of the functional inorganic material and the polyolefin resin by the irregularities is quicker. It is proposed as a preferred embodiment to achieve this.

In addition, according to a preferred embodiment of the present invention, the stirring vane is formed of a stirring rod shaft orthogonal to the mixing melting tank, and a functional inorganic material and polyolefin-based resin which is installed on the upper side of the stirring rod shaft to form a vortex in the mixing melting tank to drop in its own weight The upper stirring blade for mixing the lower, and the lower stirring blade is installed in close proximity to the bottom surface of the stirring rod shaft is rotated at high speed to the functional inorganic material and polyolefin-based resin that is settled on the bottom surface to melt them through frictional heat to form a polymer It is configured to include.

Hereinafter, with reference to the accompanying drawings it will be described in detail a functional inorganic and polyolefin resin mixing system proposed as a preferred embodiment in the present invention.

1 is a block diagram showing the overall configuration of the functional inorganic and polyolefin resin mixing system proposed as a preferred embodiment in the present invention, Figure 2 is a view showing in detail the configuration of the grinding roller in the mixing system according to the present invention. .

In the mixing system 1 of the functional inorganic material and the polyolefin resin according to the present invention, the functional inorganic material such as elite and polyolefin resin such as polypropylene and polyethylene are pulverized and mixed, and then melted through frictional heat to minimize physical property changes. It is designed to obtain a polymer in a state of being prepared.

Referring to this with reference to the drawings, the mixing system 1 of the functional inorganic material and the polyolefin resin according to the present invention, as shown in Figure 1 through the outlet 11a provided with a metering valve, the fixed amount of the functional inorganic material, A hopper section 10 including a first hopper 11 for dropping its own weight and a second hopper 12 for dropping the charged polyolefin-based resin by weight through a discharge port 12a provided with a metering valve; The inorganic and polyolefin-based resins quantitatively injected from the hopper unit 10 are pulverized through the grinding roller 21, and the pulverized functional inorganic and polyolefin-based resins are discharged quantitatively through the outlet 22 provided with a metering valve. A crushing unit 20; The compressed air is blown into the spiral feed pipe 31 and the spiral feed pipe 31, which are transfer paths of the functional inorganic material and the polyolefin resin discharged from the crushing unit 20, and the transfer pressure of the functional inorganic material and the polyolefin resin. A vortex circulation section 30 including a compressor 32 to provide a; A discharge port 41a provided with a metering valve is provided, and a distal end of the spiral feed pipe 31 of the vortex circulation part 30 is installed to communicate with the upper portion, and discharges the functional inorganic material discharged through the spiral feed pipe 31. The mixing melting tank 41 which forms the accommodating space of a polyolefin resin, and the functional inorganic material and polyolefin resin which are installed in the inside of the mixing melting tank 41, discharge | emitted from the said spiral conveying pipe 31, and fall down in weight A stirring part 40 including a stirring blade part 42 which mixes and forms a polymer obtained by mixing and melting the polyolefin-based resin and the functional inorganic material through frictional heat by rotating the functional inorganic material and the polyolefin-based resin stacked at a high speed at high speed; And a lead screw part 50 for discharging the polymer made of polyolefin-based resin and functional inorganic material discharged one by one through a discharge port 41a provided with a metering valve in the mixing melting tank 41 in one direction. .

Referring to the drawings showing a preferred embodiment, the grinding roller 21 is installed in the lower portion of the hopper 10, the pulverized functional inorganic material and polyolefin-based resin pulverized by each, the outer diameter surface is rotated in close contact with each other It consists of a driving roller 21A and a driven roller 21B.

2, in the present embodiment, a plurality of unevennesses 21A-a and 21B-a are formed on the surfaces of these drive rollers 21A and driven rollers 21B, thereby providing unevenness 21A-a and 21B. -a) makes the grinding of the functional inorganic material and the polyolefin resin more rapid.

By such a configuration, the functional inorganic material and the polyolefin-based resin supplied to the pulverization unit 20 by self-dropping by weight through the outlets 11a and 12a under the control of the metering valve provided in the hopper unit 10 are driven rollers 21A. Finely pulverized by a pulverizing roller 21 composed of a roller and a driven roller 21B.

The functional inorganic material and the polyolefin-based resin thus pulverized are rapidly supplied by the vortex action generated by the compressed air while being supplied to the vortex circulation section 30 provided under the pulverization section 20 and transported.

That is, while the functional inorganic material and the polyolefin-based resin transfer the spiral feed pipe 31 by the compressed air, the mutual mixing is performed by the vortices generated by the compressed air.

And the functional inorganic material and polyolefin resin mixed while passing through the vortex circulation part 30 is discharged to the stirring part 40 of the form in which the stirring blade part 42 was formed inside the mixing melting tank 41, In the embodiment, the air discharge port 41b is formed separately in the upper portion of the mixing melting tank 41 in which the spiral feed pipe 31 is connected, and the functional inorganic material and the polyolefin resin discharged through the spiral feed pipe 31 are The so-called cyclone dust collection structure is formed so as to fall by its own weight and the compressed air supplied by the compressor 32 to be discharged to the outside through the air discharge port 41b.

When the cyclone dust collecting structure is formed between the vortex circulation part 30 and the stirring part 40 as in the present embodiment, a phenomenon in which the internal temperature of the mixing melting tank 41 rapidly decreases due to the inflow of compressed air is prevented. Can be.

On the other hand, the stirring blade part 42 provided in the said mixing melting tank 41 is spaced up and down from the stirring rod shaft 42a provided orthogonally in the mixing melting tank 41, and this stirring rod shaft 42a. The upper stirring blade 43a and the lower stirring blade 43b are installed. (*** Unexplained symbol M in the drawing is a motor for rotating the stirring rod shaft ***)

These upper stirring blades 43a and lower stirring blades 43b may be spaced apart vertically on one stirring rod shaft 42a as in the present embodiment, and a pair of stirring rods that are independently rotated in the mixing melting tank. The shaft may be provided to face up and down, and the upper stirring blade and the lower stirring blade may be provided on the shaft, respectively, such that the upper stirring blade and the lower stirring blade rotate at different speeds.

Here, the upper stirring blade 43a causes a vortex in the mixing melting tank 41 to perform a stirring action to uniformly mix the functional inorganic material and the polyolefin resin, and the lower stirring blade 43b sinks to the bottom surface. The functional inorganic material and the polyolefin resin are rotated at high speed and stirred, and at the same time, the generated frictional heat is performed to melt the functional inorganic material and the polyolefin resin to achieve a uniformly mixed polymer state.

When the functional inorganic material and the polyolefin resin are melted through frictional heat generated by the rotation of the lower stir blade 43b as in the present invention, a heater for warming may not be provided separately, thus simplifying the structure and power consumption. It can have the advantage of reducing.

Therefore, the functional inorganic material and the polyolefin resin introduced into the stirring part 40 via the vortex circulation part 30 are mixed and melted by the upper stirring blade 43a and the lower stirring blade 43b, and the functional inorganic material is melted. It results in a polymer of uniformly incorporated form.

In addition, the functional inorganic material and the polyolefin-based resin in a polymer state are discharged quantitatively through the discharge port 41a provided with a metering valve, and then the polymer in which the quantitative functional inorganic material is mixed is introduced into the lead screw 50 to be more uniform. To be mixed and discharged.

As described above, the polymer made of the functional inorganic material and the polyolefin-based resin mixed and discharged by the lead screw 50 is cooled to be manufactured in the form of a polymer chip in which the functional inorganic material and the polyolefin-based resin are uniformly mixed to form a film or a slit. It is used as a raw material for molding into various forms such as filamentous yarn and fiber yarn.

As described above, the present invention proposes a system designed to obtain a polymer having a uniform mixed state by pulverizing a functional inorganic material and a polyolefin resin, mixing them uniformly, and then melting them through frictional heat.

In particular, in the present invention, a separate heater is not provided, and the melting of the functional inorganic material and the polyolefin resin is performed by frictional heat, thereby simplifying the structure and suppressing the change in the physical properties of the material.

And, if such a system is actually applied to production, it is possible to reduce the cost of the product through the improvement of productivity, and also to ensure the uniformity of quality.

Claims (4)

A hopper unit including a first hopper for self-dropping the charged functional inorganic material by quantitatively through the outlet provided with a metering valve, and a second hopper for self-dropping the charged polyolefin-based resin quantitatively through the outlet provided with the metering valve Wow; A pulverizing unit which pulverizes the functional inorganic material and the polyolefin-based resin, which are quantitatively input from the hopper unit, through the pulverizing roller, and discharges the pulverized functional inorganic and the polyolefin-based resin by the quantitative valve through a discharge port provided with a quantitative valve; Vortex circulation including a spiral conveying pipe which is a conveying path of the functional inorganic material and the polyolefin resin discharged from the crushing unit, and a compressor which blows compressed air into the spiral conveying pipe to provide a conveying pressure of the functional inorganic material and the polyolefin resin. Wealth; The distal end of the helical feed tube of the vortex circulation unit is installed in communication with the upper portion, and provided with a discharge port provided with a metering valve, to form a receiving space of the functional inorganic material and the polyolefin resin discharged through the helical feed tube, A mixing melting tank configured to discharge the functional inorganic material and the polyolefin-based resin discharged through the helical transfer pipe by self-weighting, and the compressed air discharged and supplied by the compressor to the outside through an air discharge port; It is installed inside the mixing tank, and mixed with the functional inorganic material and polyolefin resin which is discharged from the helical conveying pipe and falling in its own weight, and rotates the functional inorganic material and the polyolefin resin laminated on the bottom at high speed to the polyolefin system through frictional heat A stirring unit including a stirring blade unit forming a polymer in which a resin and a functional inorganic material are mixed and melted; And Functional inorganic and polyol, characterized in that it comprises a lead screw for discharging the polymer consisting of a polyolefin-based resin and a functional inorganic material discharged in a quantitative manner through the discharge port provided with a metering valve in the mixing melter in one direction  Lepin resin mixing system. delete The grinding roller of claim 1, wherein the grinding roller is composed of a driving roller and a driven roller which are rotated in close contact with the outer diameter surface, and irregularities are formed on the surfaces of these driving rollers and the driven roller. A functional inorganic material and polyolefin resin mixing system, characterized in that the pulverization of the resin is configured to be made more quickly. The mixing blade of claim 1, wherein the stirring vane is configured to mix a stirring rod shaft orthogonal to the mixing melting tank, a functional inorganic material disposed on the upper side of the stirring rod shaft, which forms a vortex in the mixing melting tank, and falls down in its own weight. Including an upper stirring blade and a lower stirring blade installed close to the bottom surface of the stirring rod shaft to rotate the functional inorganic material and the polyolefin-based resin settled on the bottom at high speed to melt them through frictional heat to form a polymer Functional inorganic substance and polyolefin resin mixing system characterized by the above-mentioned.

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