KR20150065537A - Multi-nozzle type meta-aramide fibrils manufacturing apparatus and manufacturing method - Google Patents

Abstract

The present invention provides a multi-nozzle type apparatus for producing meta-aramid fibrils. The apparatus includes: a first casing having a shaft arrangement part penetrating a guide hole wherein a rotation driving shaft rotated by a driving source of a motor in one direction is inserted and arranged; a second casing having an assembly hole wherein a shaft support unit supporting the rotation driving shaft is arranged so as to be assembled with the first casing; a rotor having plurality of inner cutting blades which are assembled with the rotation driving shaft and which are installed with constant intervals in the circumferential direction on an outer circumference side; a stator fixed to and installed on the exterior of the rotor by having a plurality of outer cutting blades installed with constant intervals in the circumferential direction on an inner circumference side corresponding to the inner cutting blades; and a neutralizing agent supplying unit which is arranged to penetrate the first casing and the stator in order to supply a neutralizing agent between the inner cutting blades of the rotor and the outer cutting blades of the stator. A meta-aramid composition is supplied to the inside of a cavity between the first casing and the second casing through a gap between the rotation driving shaft and the guide hole; the meta-aramid composition, solidified by the neutralizing agent supplied by the neutralizing agent supplying unit, is pulverized to be fibrillated; and then the fibrillated meta-aramid is discharged through a discharging pipe, arranged on the second casing, to the outside.

Description

TECHNICAL FIELD [0001] The present invention relates to a multi-nozzle type meta-aramid fibril manufacturing apparatus and a manufacturing method thereof,

More particularly, the present invention relates to a device for manufacturing a fibrillated meta-aramid fiber, and more particularly to a device for manufacturing a fibrillated meta- And more particularly, to a multi-nozzle type meta-aramid fibril manufacturing apparatus and method capable of supplying a stabilized neutralizing agent through a multi-nozzle while expanding the meta-aramid composition while efficiently discharging the guide discharge of the meta-aramid composition.

Generally, polyamide-based synthetic resins are classified into aliphatic polyamides and aromatic polyamides.

Aliphatic polyamides are commonly known under the trade name Nylon and aromatic polyamides are known under the trade name Aramid.

The aliphatic polyamide. Especially, nylon 6 and nylon 6,6 are the most common thermoplastic engineering plastics, and they are used not only as a fiber but also as a molding material in various fields. The nylon resin used in the molding industry is made of reinforced plastics which is reinforced with mineral or glass fiber to improve mechanical properties such as elasticity and lowering the price to have improved flame retardancy and impact resistance.

Aromatic polyamides, developed in the 1960s, have been developed to improve the heat resistance of nylon, an aliphatic polyamide, and are well known for their trade names such as Nomex, Kevlar, and these aromatic polyamides are known as flame- , Tire cord and the like, and has high heat resistance and high tensile strength.

A typical aliphatic polyamide is a synthetic resin having an aliphatic hydrocarbon bonded between amide groups, and an aramid is a synthetic resin having an amide bond having 85% of benzene groups bonded to two aromatic rings between amide groups.

The aliphatic hydrocarbon of the aliphatic polyamide easily undergoes molecular motion when heat is applied, whereas the benzene ring of the aromatic polyamide is stable to heat and has high elasticity because the molecule chains are rigid and the molecules do not easily move even when heat is applied. And there are many differences in characteristics.

The aromatic polyamide is classified into a para-aramid and a meta-aramid. The para-aramid is represented by Kevlar developed by DuPont.

The para-aramid is the benzene ring bound to the amide group at the para position. Since the molecular chain is very stiff and has a linear structure, it has a very high strength and a particularly high elasticity, so that it has excellent shock absorbing performance. It is used for armor, bulletproof helmet, safety gloves, boots and fire extinguisher. It is used for sports equipment such as sticks, fishing rods and golf clubs, and also for industrial use such as FRP (Fiber Reinforced Plastic) and asbestos replacement fibers.

On the other hand, the meta-based aramid is represented by Nomex developed by DuPont and Conex developed by Dejin. The meta-based aramid is a combination of the benzene ring and the amide group at the meta position. The strength and elongation are similar to ordinary nylon, but they are very stable against heat. They are lighter than other heat-resistant materials and have sweat absorption. Have. Initially, the color was limited to a few,

Recently, it has been made in various colors including fluorescent colors. It is used as fire-resistant clothing, uniforms for racing motorists, astronaut uniforms, work clothes, etc., and for industrial use, it is used for high-temperature filters.

(Patent Document 1) KR10-2007-0109342 A

Patent Document 1 discloses a method in which aramid filaments are cut in a grinder in which a rotor is placed in a body having an aramid short fiber inlet and an aramid pulp outlet and grinding blades are fixed to the wall surface of the body and the rotor, And a pulverizing process is disclosed.

However, in such a conventional apparatus, a plurality of blades are disposed in the inner space of the main body to crush the raw material as a frictional force, which is advantageous in that the manufacturing process is simple and the manufacturing cost can be reduced as compared with the conventional wet grinding method. However, It is not possible to secure a stable supporting force with respect to the rotary drive shaft for rotating the rotor with respect to the rotary shaft, and there has been a limit to improve the grinding efficiency by maximizing the friction area.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems and it is an object of the present invention to provide a stator for stably supporting a rotating driving shaft which is connected to a driving source for rotating a rotor, The present invention is to provide a multi-nozzle type meta-aramid fibril manufacturing apparatus and a manufacturing method which can supply a neutralizing agent and can more efficiently perform the guiding discharge of the meta-aramid composition.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

In order to achieve the above-mentioned object, the present invention is characterized by comprising: a first casing having a shank portion formed through a guide hole into which a rotary drive shaft rotated in one direction by a drive source of a motor is inserted; A second casing having an assembling hole in which a shaft supporting portion for supporting the rotation driving shaft is disposed and assembled with the first casing; A rotor assembled to the rotary drive shaft and having a plurality of inner cutting blades on the outer circumferential surface at regular intervals in the circumferential direction; A plurality of outer cutting blades at a predetermined interval in the circumferential direction on the inner circumferential surface corresponding to the inner cutting blade and fixed to the outer side of the rotor and a neutralizing agent supplied between the inner cutting blade of the rotor and the outer cutting blade of the stator Wherein the meta-aramid composition is supplied into the cavity between the first casing and the second casing through a gap between the rotary drive shaft and the guiding construction, Wherein the meta-aramid composition solidified by the neutralizing agent supplied through the first casing is pulverized and fibrillated, and the fibrillated meta-aramid is discharged to the outside through a discharge pipe provided in the second casing. Thereby providing a fibril production apparatus

Preferably, the neutralizing agent supply unit includes a chamber mounted on the first casing and connected to the neutralizing agent supply line, a plurality of first insertion holes formed through the first casing, and a plurality of second And a plurality of nozzle tubes extending from the chamber so as to be inserted through the insertion hole.

Preferably, the guide hole has an inner diameter enlarged portion having a cross section whose outer diameter is enlarged toward the rotor side.

Preferably, the rotary drive shaft is provided with a stopper whose engagement is controlled by the rotor in the middle of its length, and is screwed with a male screw portion formed on the outer circumferential surface of the rotary drive shaft so as to fix the rotor controlled by the stopper, And has a female thread portion which is brought into close contact.

Preferably, the rotor has an arcuate groove recessed between adjacent inner cutting edges.

Preferably, the stator is integrally formed to protrude from the first casing or the second casing toward the rotor, or may be provided in a prefabricated manner so as to be disassembled and assembled into the first casing or the second casing.

Preferably, on one side of the rotor facing the second casing, a depression formed at a predetermined depth inwardly to form a filling space filled with the fibrillated meta-aramid while being solidified by a neutralizing agent and being crushed by inner and outer cutting edges, .

Preferably, a protrusion protruding from one side of the rotor facing the first casing to the inner cutting edge extends spirally or linearly from an assembling hole to which the rotary driving shaft is assembled.

Preferably, the first casing facing the rotor has a projection projecting from the guide hole so as to extend spirally or linearly from the outer cutting edge side of the stator.

The present invention also provides a method of manufacturing a rotor, comprising: rotating a rotor disposed in a cavity between a first casing and a second casing in one direction; Supplying a meta-aramid composition between an outer circumferential surface of a rotary drive shaft connected to the rotor and an inner circumferential surface of a guide hole formed in the first casing; A first step of crushing the meta-aramid composition supplied by a frictional force generated between one side of the rotor and one side of the inside of the first casing; A meta-aramid composition which is first crushed between the rotor and the first casing by a neutralizer supplied between the rotor and the stator through a stator fixedly installed on the outer side of the rotor and through a neutralizer supply portion disposed through the first casing, A step of spawning; A step of secondarily pulverizing and fibrillating the solidified meta-aramid composition between the rotor and the stator by a frictional force generated between an inner cutting edge of the rotor rotating in one direction and an outer cutting edge of the stationary stator; And discharging the fibrillated meta-aramid to the outside by the inner cutting edge and the outer cutting blade through a discharge pipe of the second casing.

Preferably, the step of first crushing the meta-aramid composition is performed by a frictional force between one side of the rotor or a protrusion selectively protruding on one side of the inner side of the first casing facing the rotor.

Preferably, the step of solidifying the primary pulverized meta-aramid composition further comprises the step of solidifying the first pulverized meta-aramid composition, which is attached to the first casing and extends from one side of the chamber communicating with the neutralizing agent supply line, And a neutralizer supplied through a plurality of nozzle tubes inserted through a plurality of second insertion holes formed through the stator so as to correspond to the insertion holes.

Preferably, the step of discharging the meta-aramid composition to the outside is filled in a filling space between one side of the second casing and a depression formed on the other side of the rotor facing the same, and then discharged to the outside.

The present invention as described above has the following effects.

(1) Since a neutralizing agent supplying unit for supplying a neutralizing agent between the stator and the rotor is provided as a multi-nozzle tube, a large amount of a neutralizing agent for solidifying the primary ground methacrylamide composition can be supplied in a short time, It is possible to improve fibril work productivity for the meta-aramid composition.

(2) Since the rotary driving shaft, which rotates in one direction when the motor is driven, is supported on the shaft supporting portion of the second casing, the rotary driving shaft connected with the rotor can be stably supported. Therefore, by the stable rotation of the rotor rotating in one direction with respect to the stator, Can be more efficiently performed.

(3) Since the friction area between the stator serving as the fixing member and the rotor serving as the rotating member can be increased, and the guide discharge of the meta-aramid composition can be smoothly performed, the efficiency of the manufacturing process of fibrillating the meta-aramid can be enhanced, .

1 is a longitudinal sectional view showing a multi-nozzle type meta-aramid fibril manufacturing apparatus according to a preferred embodiment of the present invention.
2 is an exploded perspective view showing a multi-nozzle type meta-aramid fibril manufacturing apparatus according to a preferred embodiment of the present invention.
3 is a cross-sectional view illustrating a multi-nozzle meta-aramid fibril manufacturing apparatus according to a preferred embodiment of the present invention.
FIG. 4 is a perspective view illustrating a neutralizing agent supply unit employed in a multi-nozzle meta-aramid fibril production apparatus according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to include an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

1 to 4, a multi-nozzle meta-aramid fibril manufacturing apparatus 100 according to a preferred embodiment of the present invention includes a first casing 110, a second casing 120, a rotor 130, A stator 140, and a neutralizing agent supply unit 150.

The first casing 110 includes a guide hole 114, which is directly or indirectly connected to a motor M that generates a rotational driving force when power is applied thereto and into which a rotary driving shaft 112, which is rotated in one direction by a driving source of the motor, Is formed through the center of the body.

The guide hole 114 of the first casing 110 is preferably formed to pass through a shaft-like cylindrical portion 116 extending from the center of the body to a predetermined length.

The inner diameters of the shaft portion 116 and the guide holes 114 formed therein are relatively larger than the outer diameter of the rotary drive shaft 112. The meta-aramid composition supplied by a pump And a gap between the inner circumferential surface of the tooth portion 116 and the outer circumferential surface of the rotary drive shaft 112. The gap between the inner surface of the guide hole 114 and the outer circumferential surface of the rotary drive shaft 112 And is filled and filled in a cavity formed between the first casing 110 and the second casing 120 through an interval.

The guide hole 114 has an outer diameter toward the rotor 130 so that the meta-aramid composition can be smoothly supplied into the cavity formed between the first casing 110 and the second casing 120 And an inner diameter enlarged portion 114a having an enlarged cross-sectional shape.

A certain amount of the meta-aramid composition forcibly supplied by the gap between the guide hole 114 and the rotation driving shaft 112 is filled in the cavity formed between the first casing 110 and the second casing 120 And is supplied through a supply path between the outer surface of the rotor 130 and the inner surface of the first casing 110. [

The second casing 120 is a fixing structure that is coupled with the first casing 110 to form a cavity in which the rotor 130 and the stator 140 are disposed and a cavity in which the meta-aramid composition is filled .

In the center of the body of the second casing 120, an assembly hole 122 is formed through which an axial support portion 124 such as a bearing member is disposed to support the rotation of the rotary drive shaft 112 in one direction.

It is preferable that the rotation driving shaft 112 which penetrates through the assembling hole 122 and is exposed to the outer end of the second casing 120 is provided with a detent nut 126. The outer side of the second casing 120 The skirt portion 118 extending from the outer edge of the first casing 110 may be inserted into the rim to form a step 128 to be engaged therewith.

The meta-aramid composition in the fibril-forming space between the rotor 130 and the second casing 120 is solidified and swelled with the neutralizing agent and the fibrillated meta-aramid is discharged to the outside in the second casing 120 And a discharge pipe 125.

The rotor 130 is disposed in the cavity formed between the first casing 110 and the second casing 120 by being assembled in the middle of the length of the rotary drive shaft 112 to form the first and second casings 110 and 120 And the stator 140. The stator 140 is a rotating structure that rotates in one direction.

The rotor 130 has an assembly hole 131 through which a rotary drive shaft 112 is inserted and assembled and a key groove is formed in the assembly hole 131 so as to be assembled with a rotary drive shaft as a key member.

The rotor 130 has a plurality of inner cutting blades 132 at regular intervals in the circumferential direction on the outer circumferential surface thereof and a plurality of inner cutting blades 132 disposed between adjacent inner cutting blades 132. The rotor 130 has a supply flow of the meta-aramid composition supplied into the cavity It is preferable that the arc-shaped groove 134 be recessed so that friction and friction can be more smoothly induced.

The rotary drive shaft 112 assembled with the assembly hole 131 of the rotor 130 is provided with a stopper 112a in which the rotor 130 is locked in the middle of its length, And a female screw portion 112c screwed to the male screw portion 112b formed on the outer circumferential surface of the rotary drive shaft 112 to fix the position of the rotor 130 and closely contact with the outer surface of the rotor 130. [

At this time, the stopper 112a is provided to control the engagement position of the rotor 130 so that the inner cutting edge 132 of the rotor and the outer cutting edge 142 of the stator face each other.

Accordingly, the rotor 130 is fixed between the stopper 112a of the rotary drive shaft 112 and the male threaded portion 112c so as not to move up and down during rotation, and is rotated in one direction will be.

A meta-aramid composition supplied through a gap between the rotation driving shaft 112 and the guide hole 131 is provided on one side of the rotor 130 facing the one side of the first casing 110, The rotation driving shaft 112 is formed so as to be able to form another crushing space between the rotor 130 and the first casing 110 while smoothly guiding and discharging it in the radial direction in a boundary region between the first casing 110 and the first casing 110 It is preferable to protrude a protruding portion 138 which extends spirally or linearly from the assembling hole 131 to the inner cutting edge 132.

Although the protrusion 138 has been shown to extend to the inner cutting edge 132, it is not limited thereto and may extend spirally or linearly up to the arcuate groove 134.

The one side of the first casing 110 facing the one side of the rotor 130 extends from the guide hole 114 to the side of the outer cutting edge 142 of the stator 140 in a spiral or linear shape Other protrusions may be protruded.

Accordingly, the meta-aramid composition supplied between one side of the protruded rotor and one side of the inner side of the first casing 110 facing the protrusion is guided outward and is crushed by frictional force generated therebetween.

The stator 140 is provided with a plurality of outer cutting edges 142 at a predetermined interval in the circumferential direction on the inner circumferential surface corresponding to the inner cutting edge 132 of the rotor 130 so as to face the outer side of the rotor 130 Is a fixed structure.

The stator 140 having the outer cutting edge 142 and disposed on the outer side of the rotor 130 is disposed on the inner surface of the first casing 110 or the inner surface of the second casing 120 130 of the rotor 130. The first and second housings 120 and 130 are formed integrally with each other so that they can be disassembled and assembled. The inner surface of the first casing 110, or the inner surface of the second casing 120, May be provided in a prefabricated manner to face the blade (132).

The neutralizer supply unit 150 includes a first insertion hole 152 formed through the skirt portion 118 of the first casing 110 and a second insertion hole 152 formed through the second insertion hole 151 penetrating the stator 140. [ And a neutralizer supplied from the outside is supplied between the rotor 130 and the stator 140.

The neutralizing agent supply unit 150 includes a chamber 153 detachably mounted on the outer surface of the first casing 110 and connected to a neutralizing agent supply line 155 to which a predetermined amount of neutralizing agent is supplied, Through a plurality of first insertion holes 152 formed through the skirt portion 118 of the stator 110 and a plurality of second insertion holes 151 formed through the stator 140 to correspond to the first insertion holes 152, 153 extending from the nozzles 154.

Here, the chamber 153 may have an internal space of a predetermined size to temporarily store the neutralizing agent supplied through the neutralizing agent supply line 155, and may be detachably attached to the outer surface of the first casing 110 by a plurality of fastening members Respectively.

Each discharge end of the plurality of nozzle tubes 154 extending a predetermined length from one side of the chamber 153 is preferably inserted through the 1.2th insertion holes 151 and 152 so as not to interfere with the outer end of the rotor And is disposed between adjacent outer cutting edges 142 so that the supply of neutralizing agent to the space between the stator 140 and the rotor 130 is more smoothly performed.

In addition, although the nozzle pipe 154 is illustrated as having nine pipe members in a three-by-three array on one side of the chamber, the present invention is not limited thereto. Or an array of more than one, or may be arranged in a line.

Accordingly, the meta-amarimide composition supplied as a gap between one side of the rotor 130 facing each other and the inner side of the first casing 110 is radially directed to the outside of the rotor 130 rotated in one direction And the meta-aramid composition solidified by the neutralizing agent supplied into the cavity through the plurality of nozzle pipes 154 of the neutralizer supply unit 150 is supplied to the inside cutting edge 132 of the rotor 130 and the stator 140, And the outer cutter blade 142 of the outer cutter.

Here, one side of the rotor 130 facing the one side of the second casing 120 is filled with a fibrillated meta-aramid while being solidified by a neutralizing agent and being crushed by inner and outer cutting edges 132 and 142 And a depression 136 formed to be recessed at a predetermined depth inward to form the space S. [

That is, the neutralizing agent for solidifying the meta-aramid composition is disposed through the first casing 110 and the stator 140, and through the nozzle tube 154 in which the discharge end is located in the boundary region between the rotor and the stator The neutralizer supplied through the plurality of nozzle tubes 154 as a crushing space between the rotor and the stator can be mixed with the meta-aramid composition supplied to the gap and solidified.

In this case, it is preferable to appropriately adjust the solidification time of the meta-aramid composition, and water (H ₂ O) can be used as the neutralizer. However, in order to control the solidification time of the meta-aramid composition, a predetermined amount of water (H ₂ O) An aqueous solution of methyl acetamide mixed with dimethyl acetamide (DMAc) may also be used.

By adjusting the dimethylacetamide content of the aqueous solution of methyl acetamide, the solidification time for the meta-aramid composition can be appropriately controlled.

The aqueous dimethylacetamide solution prevents the meta-aramid composition from solidifying rapidly before fibrils are formed.

The step of fibrillating the object meta-aramid by the apparatus 100 for producing meta-aramid fibrils having the above-described structure is performed by first rotating the rotary drive shaft connected to the motor to rotate the first and second casings 110, The rotor 130 disposed in the cavity formed between the rotor 120 and the rotor 120 is rotationally driven in one direction.

When the prepared meta-aramid composition is uniformly supplied through the gap between the outer circumferential surface of the rotary driving shaft 112 rotated in one direction and the inner circumferential surface of the guide hole 114, 130, the meta-aramid composition is supplied as a gap, which is a boundary area between one side of the rotor 130 and one side of the inside of the first casing 110, and is radiated in a radial direction by the rotational force of the rotor And is first crushed by a frictional force generated between one side of the rotor 130 and one side of the inside of the first casing 110.

At this time, the meta-aramid composition supplied between the rotor and the first casing is radiated by the protrusion 138 selectively formed on one side of the rotor 130 or one side of the inside of the first casing 110 facing the rotor 130 The grinding efficiency of grinding can be increased.

When the liquid neutralizing agent is supplied to the boundary region between the rotor 130 and the stator 140 through the nozzle pipe 154 of the neutralizing agent supplying unit 150, 1 casing 110, the meta-aramid composition is mixed with the first-milled meta-aramid composition to solidify the meta-aramid composition so that the meta-aramid composition can be frictionally pulverized.

At this time, the solidification time of the meta-aramid composition which is solidified by the neutralizing agent can be suitably controlled by additives contained in the neutralizing agent.

The meta-aramid composition to be solidified is secondarily pulverized by the frictional force generated in the crushing space, which is a gap between the inner cutting edge 132 of the rotor 130 and the outer cutting edge 142 of the stator 140, It is brilliant.

Subsequently, the fibrillated meta-aramid pulverized in the cavity is filled in the filling space S between one side of the second casing 120 and the depression 136 of the rotor 130, 2 casing 120 through the discharge pipe 125 provided in the casing 120, so that it can be manufactured as an insulating paper for a wet type transformer or as a dry paper insulating paper.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

110: first casing
112:
114: guide ball
116:
118: Skirt portion
120: second casing
122: Assembly
124:
125: discharge pipe
128: step
130: Rotor
132: Inner cutting edge
134: groove
136: depression
140:
142: outer cutting edge
150:
151, 152: first and second insertion holes
153: chamber
154: Nozzle tube

Claims (13)

A first casing having a shank portion passing through a guide hole into which a rotary drive shaft rotated in one direction by a drive source of the motor is inserted;
A second casing having an assembling hole in which a shaft supporting portion for supporting the rotation driving shaft is disposed and assembled with the first casing;
A rotor assembled to the rotary drive shaft and having a plurality of inner cutting blades on the outer circumferential surface at regular intervals in the circumferential direction;
A stator fixedly installed on the outer side of the rotor, the rotor having a plurality of outer cutting blades at regular intervals in the circumferential direction on an inner circumferential surface corresponding to the inner cutting blade;
And a neutralizing agent supply unit arranged to penetrate the first casing and the stator so as to supply a neutralizing agent between the inner cutting edge of the rotor and the outer cutting edge of the stator,
A meta-aramid composition is supplied into the cavity between the first casing and the second casing through the gap between the rotary driving shaft and the guiding work, and the meta-aramid composition solidified by the neutralizing agent supplied through the neutralizing agent supply unit is pulverized, And the fibrillated meta-aramid is discharged to the outside through a discharge pipe provided in the second casing. The method according to claim 1,
The neutralizing agent supply unit may include a chamber mounted on the first casing and connected to the neutralizing agent supply line, a plurality of first insertion holes formed through the first casing, and a plurality of second insertion holes formed through the stator to correspond to the first insertion holes, And a plurality of nozzle tubes extending from the chamber so as to be inserted through the plurality of nozzle-type meta-aramid fibrils. 3. The method according to claim 1 or 2,
Wherein the guide hole has an inner diameter enlarged portion having a cross section whose outer diameter is enlarged toward the rotor side. 3. The method according to claim 1 or 2,
The rotation driving shaft is provided with a stopper whose engagement is controlled by the rotor in the middle of the length, and a female screw threadably engaged with the male screw portion formed on the outer circumferential surface of the rotary drive shaft to fix the rotor controlled by the stopper, Nozzle type meta-aramid fibril manufacturing apparatus. 3. The method according to claim 1 or 2,
Wherein the rotor has arc-shaped recesses formed between adjacent inner cutting edges. ≪ RTI ID = 0.0 > 8. < / RTI > 3. The method according to claim 1 or 2,
Wherein the stator is integrally formed to protrude from the first casing or the second casing toward the rotor, or is provided in a form of a body so as to be disassembled and assembled into the first casing or the second casing. Brick manufacturing device. 3. The method according to claim 1 or 2,
A side surface of the rotor facing the second casing is provided with a depression formed by being recessed inwardly to a certain depth so as to form a filling space filled with the fibrillated meta-aramid while being solidified by a neutralizing agent and being crushed by inner and outer cutting edges Wherein the meta-aramid fibrils have a diameter of from about 1 mm to about 10 mm. 3. The method according to claim 1 or 2,
And a protrusion formed on one side of the rotor facing the first casing so as to protrude spirally or linearly from an assembling hole to which the rotary driving shaft is assembled to the inner cutting edge. Device. 3. The method according to claim 1 or 2,
And a protrusion formed on one side of the first casing facing the rotor so as to protrude spirally or linearly from the guide hole toward the outer cutting edge side of the stator. Rotating the rotor disposed in the cavity between the first casing and the second casing in one direction;
Supplying a meta-aramid composition between an outer circumferential surface of a rotary drive shaft connected to the rotor and an inner circumferential surface of a guide hole formed in the first casing;
A first step of crushing the meta-aramid composition supplied by a frictional force generated between one side of the rotor and one side of the inside of the first casing;
A meta-aramid composition which is first crushed between the rotor and the first casing by a neutralizer supplied between the rotor and the stator through a stator fixedly installed on the outer side of the rotor and through a neutralizer supply portion disposed through the first casing, A step of spawning;
A step of secondarily pulverizing and fibrillating the solidified meta-aramid composition between the rotor and the stator by a frictional force generated between an inner cutting edge of the rotor rotating in one direction and an outer cutting edge of the stationary stator; And
And discharging the fibrillated meta-aramid to the outside by the inner cutting edge and the outer cutting blade through the discharge pipe of the second casing. 11. The method of claim 10,
Wherein the step of first crushing the meta-aramid composition is performed by a frictional force between one side of the rotor or a protrusion selectively protruding on one side of the inside of the first casing facing the rotor. ≪ / RTI > 11. The method of claim 10,
Wherein the step of solidifying the primary pulverized meta-aramid composition comprises a plurality of first insertion holes formed in the first casing and extending from one side of the chamber communicating with the neutralizing agent supply line, Wherein the neutralization agent is supplied through a plurality of nozzle tubes inserted through a plurality of second insertion holes formed through the stator so as to correspond to the plurality of nozzle holes. 11. The method of claim 10,
Wherein the step of discharging the meta-aramid composition to the outside is filled in a filling space between one side of the second casing and a depression formed on the other side of the rotor facing the same, and then discharged to the outside. A method for producing meta-aramid fibrils.

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