KR20230102517A - A manufacturing device and method for composite fiber - Google Patents

Abstract

In the present invention, one layer is created with a desired pattern using a composite fiber solution in a sol state, and a lower part of the previously created pattern layer is solidified using the composite fiber solution in a sol state, and then a new pattern is formed on top of the pattern. We propose a composite fiber manufacturing device and a composite fiber manufacturing method capable of manufacturing composite fibers of a desired number of layers by laminating. The composite fiber manufacturing apparatus is to manufacture composite fibers in a reactor having a space of a certain size, and includes a position control stage, a substrate, a composite fiber solution injector, a solid solution feeder, and a solid solution discharger.

Description

Composite fiber manufacturing device and composite fiber manufacturing method {A manufacturing device and method for composite fiber}

The present invention relates to an apparatus for manufacturing composite fibers, and in particular, creates a layer in a desired pattern using a composite fiber solution in a sol state, and solidifies a lower part of the previously generated pattern layer using the composite fiber solution in a sol state. After that, it relates to a composite fiber manufacturing apparatus capable of manufacturing composite fibers of a desired number of layers by laminating a new pattern on top of the pattern.

Green algae refers to a phenomenon in which the color of water changes to dark green due to the abnormal reproduction of blue-green algae in freshwater environments such as rivers or lakes. Recently, due to the increase in average temperature and the inflow of pollutants due to global warming, the degree and frequency of algae blooms are remarkably increasing, and the degree of damage is getting worse year after year.

The increase in blue-green algae that causes algal blooms is closely related to our lives, such as causing an increase in water treatment costs and restrictions in hydrophilic activities, in addition to direct toxins, and is threatening enough to lower the quality of life. Accordingly, a complex capable of removing algae is being researched and announced.

An example of the composite may be a composite fiber. In order to remove algae by being put into a place where there is algal bloom, it is required to manufacture a composite fiber that has excellent green algae removal efficiency and is simple to transport and install.

In terms of the efficiency of removing algae, the cross-sectional area of the composite fiber is the largest, but the smaller the overall size, the better. However, the smaller the composite fiber is, the more difficult it is to install and retrieve, and when used in the form of a net, the size of the net must be small, which results in a lowered aperture ratio, which may reduce the actual algae removal efficiency.

A generally known composite fiber manufacturing apparatus manufactures composite fibers by melting and extruding at least two types of solid resin raw materials, introducing the molten resin through a flow pipe and a distribution plate, and spinning fibers.

Republic of Korea Patent Publication No. 10-2018-0104415 (September 21, 2018)

The technical problem to be solved by the present invention is to create a layer with a desired pattern using a composite fiber solution in a sol state, solidify a lower portion of the previously generated pattern layer using the composite fiber solution in a sol state, and then It is to propose a composite fiber manufacturing apparatus capable of manufacturing composite fibers of a desired number of layers by laminating a new pattern on top of a pattern.

Another technical problem to be solved by the present invention is to create a layer with a desired pattern using a composite fiber solution in a sol state, and solidify a lower part of the previously generated pattern layer using a composite fiber solution in a sol state. It is to propose a composite fiber manufacturing method capable of manufacturing composite fibers of a desired number of layers by laminating a new pattern on top of the corresponding pattern.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

The composite fiber manufacturing apparatus according to the present invention for achieving the above technical problem is to manufacture composite fibers inside a reactor containing a space of a certain size, a position movable in the x, y, and z directions from the top of the reactor A control stage, a substrate installed inside the reactor, a composite fiber solution injector mounted on the position control stage and discharging the composite fiber solution to the top of the substrate while moving, and a solid solution supplying the solid solution to the empty space of the reactor. A feeder and a solid solution discharger for collecting the used solid solution from the reactor.

The composite fiber manufacturing method according to the present invention for achieving the other technical problem is to use the composite fiber manufacturing apparatus of claim 1, to prepare the composite fiber solution and the solid solution, and to prepare the composite fibers in several layers in advance. A preparatory step for determining whether to form a preparatory step, which is performed inside the reactor, and controls the position control stage so that the composite fiber solution in a sol state from the composite fiber solution injector is placed on the substrate or on top of the composite fiber layer already created. Discharging to create one composite fiber layer, filling the solid solution in the solid solution feeder from the bottom of the reactor, and injecting the solid solution so that a part of the lower part of the composite fiber layer is submerged, the resulting composite fiber layer is the target When it is determined whether a layer to be made is determined, and when it is determined that a composite fiber layer should be added, the composite fiber manufacturing completion determination step of performing the composite fiber layer creation step and the composite fiber layer generated in the composite fiber manufacturing completion determination step When it is determined that the layer is the target layer, a step of additionally introducing the solid solution to the level of covering the upper part of the composite fiber layer is included.

As described above, since the composite fiber manufacturing apparatus and composite fiber manufacturing method according to the present invention include a plurality of composite fiber layers, the area in which the developed material is in contact with the outside can be maximized, and the size of the material can be adjusted. It has the advantage that it can be installed directly on site or efficiently collected.

The effects obtainable in the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below. will be.

1 is an embodiment of a composite fiber manufacturing apparatus according to the present invention.
2 is another embodiment of a composite fiber manufacturing apparatus according to the present invention.
Figure 3 is a side cross-sectional view of the composite fiber manufacturing apparatus shown in Figure 1.
Figure 4 is a front perspective view of the composite fiber manufacturing apparatus shown in Figure 1;
5 is an embodiment of a method for manufacturing composite fibers according to the present invention.
Figure 6 is a specific embodiment of the composite fiber manufacturing method according to the present invention.
7 shows a state in which composite fibers of the first layer are generated.
8 shows a state in which the composite fibers of the second layer are created.
9 illustrates various embodiments of patterns of composite fibers.
10 illustrates examples of various thicknesses of patterns constituting composite fibers.
11 is a cross-sectional view of another embodiment of the composite fiber manufacturing apparatus with five discharge ports shown in FIG.
12 is an enlarged internal view of the dotted oval of FIG. 11;

In order to fully understand the present invention and the advantages in operation of the present invention and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings describing exemplary embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like members.

1 is an embodiment of a composite fiber manufacturing apparatus according to the present invention.

2 is another embodiment of a composite fiber manufacturing apparatus according to the present invention.

Figure 3 is a side cross-sectional view of the composite fiber manufacturing apparatus shown in Figure 1.

Figure 4 is a front perspective view of the composite fiber manufacturing apparatus shown in Figure 1;

1 to 4, the composite fiber manufacturing apparatus 100 according to the present invention includes a position control stage 1, a composite fiber solution injector 2, a pressurizing device 3, a discharge unit 4, and a substrate (5), a rotary drive unit (6), a reactor (7), a composite fiber solution feeder (8), a solid solution feeder (9), a solid solution discharger (10), and an ultrasonic device (11). Although not shown in the drawing, the position control stage (1), the composite fiber solution injector (2), the pressurizing device (3), the discharge unit (4), the substrate (5), the rotary driving unit (6), the reactor (7), the composite A control device (not shown) for controlling the operation of the fiber solution feeder 8, the solid solution feeder 9, the solid solution discharger 10, and the ultrasonic device 11 is inside or outside the composite fiber manufacturing device 100. will be installed.

The position control stage 1 adjusts the position of the composite fiber solution injector 2 mounted while moving in three dimensions, that is, x, y, and z directions.

The composite fiber solution injector 2 uses the pressure of the pressurizing device 3 to spray the composite fiber solution stored in the composite fiber solution feeder 8 onto the substrate 5 through the discharge unit 4. discharge in the state As will be described later, the pattern formed by the sol-state composite fiber solution discharged from the composite fiber solution injector 2 can be varied by controlling the movement of the position adjusting stage 1 . For example, if the position control stage 1 moves in one direction, a primary type composite fiber pattern will be formed. In FIG. 1, the discharge unit 4 includes only one discharge port, but in FIG. 2, the discharge unit 4 includes five outlets. Therefore, when using the embodiment shown in FIG. 1, one movement of the positioning stage 1 creates a single line of composite fiber patterns, but when using another embodiment shown in FIG. 2, the positioning stage One movement of (1) will be able to create 5 lines of composite fiber patterns. Whether to use the embodiment of FIG. 1 or the embodiment of FIG. 2 depends on the user's choice.

The rotary driving unit 6 is coupled to the lower surface of the substrate 5 and is used to rotate the substrate 5, which can be used for surface modification of the composite fiber to be manufactured.

Inside the reactor 7, a substrate 5 is installed, the lower surface of which is connected to the upper part of the rotary drive unit 6, and the side wall surrounds the edge of the substrate 5, and the height of the side wall is stacked with the composite fibers to be manufactured. It is desirable to set the height enough to cover it.

The solid solution supplier 9 supplies the solid solution to the empty portion of the reactor 7, and the amount of the supplied solution increases each time each layer constituting the composite fiber produced on the substrate 5 is created, It is determined corresponding to the height of the floor. Here, the solid solution is a solution used to solidify the sol-state composite fibers formed on the substrate 5 into a gel state.

The solid solution discharger 10 collects and stores the used solid solution from the reactor 7.

The ultrasonic device 11 may be used for cleaning efficiency of the composite fibers located inside the reactor 7 by vibrating the inside of the reactor 7. That is, after discharging the solid solution to the solid solution discharger 10, it can be used to efficiently remove the solid solution remaining in the composite fibers.

In the present invention, it is proposed to use a chitosan solution or a chitosan-biomass mixed solution as a material for the composite fiber to be manufactured.

A chitosan solution (6%wt) can be prepared by dissolving chitosan powder in a 5% acetic acid solution. At this time, when the mixed solution of chitosan powder and acetic acid is stirred for 24 hours, the chitosan powder is effectively dissolved in acetic acid. Here, an embodiment in which an acidic substance such as hydrochloric acid, sulfuric acid, and nitric acid is used instead of acetic acid is also possible.

Chitosan-biomass mixed solution (chitosan: biomass = 3: 7 in suspension) can be prepared by mixing powdered Corynebacterium glutamicum biomass (<50 μm) powder with chitosan solution (6%wt). can

In the present invention, it is proposed to use a 1M (Mole) sodium hydroxide (NaOH) solution as a solid solution used to solidify a pattern created with a sol-state composite fiber solution. A 1M sodium hydroxide (NaOH) solution can be used to convert a sol-state chitosan solution or a chitosan-biomass mixed solution into a gel state. Here, an embodiment in which a basic substance such as ammonia or a basic moxin solution is used instead of the sodium hydroxide solution is also possible.

5 is an embodiment of a method for manufacturing composite fibers according to the present invention.

Referring to FIG. 5, a preliminary preparation step (501), one composite fiber layer creation step (510), a solid solution input step (520), a composite fiber manufacturing completion determination step (530), and a solid solution additional input step (540). includes

Although the composite fiber manufacturing method 500 according to the present invention shown in FIG. 5 can be carried out using various devices, it is preferable to carry out using the composite fiber manufacturing device 100 shown in FIG. For ease of understanding, it is assumed that the composite fiber manufacturing method 500 is performed using the composite fiber manufacturing apparatus 100 and described below.

In the preliminary preparation step 501, a composite fiber solution and a solid solution are prepared, and the number of layers to form the composite fibers in advance is determined.

The step of creating one composite fiber layer (510) is performed inside the reactor (7) of the composite fiber manufacturing apparatus (100), and the composite fiber solution injector (2) controls the position control stage (1) to form a sol state composite. It is made in such a way that the fiber solution is discharged onto the substrate 5, and one layer with a desired area is created. As will be described below, a plurality of straight patterns are two-dimensionally arranged in a sol-state composite fiber solution in order to generate composite fibers having a desired area. At this time, it is possible to improve the surface modification of the composite fiber produced by rotating the substrate 5 by controlling the rotation driving unit 6 .

In the solid solution input step 520, the solid solution of the solid solution feeder 9 is filled from the lower part of the reactor 7 so that a lower portion of the generated composite fiber pattern is submerged. By chemical bonding between the composite fiber pattern and the solid solution, the sol composite fiber pattern is solidified into a gel state. At this time, the reason why the lower part of the composite fiber pattern is submerged is for chemical bonding between the composite fiber layer that is subsequently laminated and the composite fiber layer previously formed on the lower part.

In the composite fiber manufacturing completion determination step (530), it is determined whether the generated composite fiber layer is a target layer, and when it is determined that a composite fiber layer should be added (530 No), one composite fiber layer creation step (510) is performed. carry out

In the solid solution addition step 540, since the solid solution introduced in the solid solution input step 520 is only introduced to a part of the lower layer of the finally generated composite fiber layer, the solid solution is added to the level of covering the upper part of the finally generated composite fiber layer. The solution is further added to solidify the entire composite fiber layer.

Figure 6 is a specific embodiment of the composite fiber manufacturing method according to the present invention.

Referring to FIG. 6 , it can be seen that the target composite fiber layer is created by repeatedly performing the step of generating one layer of composite fibers (510) and the step of introducing the solid solution (520). In particular, in the solid solution input step (520-1) following the step of producing one layer of composite fibers (510-1), the composite fibers (C / F- A solid solution (NaOH) is introduced to the extent that the lower portion of 1) is submerged (D1 & H1), followed by a step of creating one composite fiber layer (510-2), followed by a step of introducing the solid solution (520-2) It can also be understood that the solid solution (NaOH) is injected to the extent that the lower part of the composite fibers (C/F-2) generated in the step of creating one composite fiber layer (510-2) is submerged (D2 & H2).

When the composite fiber layer becomes the target layer, the solid solution (NaOH) is added (540) to the extent that the upper surface of the finally generated composite fiber (C / F-F) is submerged (D3 & H3), Solidify all layers.

6, in the solid solution input step (520-1), the composite fibers are solidified using the solid solution that is submerged to a part of the lower portion of the composite fibers generated in the single composite fiber layer creation step (510-1), and then the solid solution Although it is shown that the step of creating one layer of composite fibers (510-2) is performed in this stagnant state, after the solid solution input step (520-1) is performed, all the solid solution in the reactor (7) is removed An embodiment in which the step of creating one layer of composite fibers (510-2) is performed, and then the solid solution is newly injected to a desired height in the step (520-2) of introducing the solid solution is also possible.

Referring to the red arrow in FIG. 6, the composite fiber solution injector moves in a horizontal direction when producing one layer of composite fibers, and moves upward from the substrate in a vertical direction as the number of layers of composite fibers to be manufactured increases. it can be seen that

7 shows a state in which composite fibers of the first layer are generated.

8 shows a state in which the composite fibers of the second layer are created.

Referring to FIG. 7, a solid solution sufficient to submerge only a portion of the lower portion of the first layer (C/F-1) is introduced, and referring to FIG. 8, a second layer is formed on top of the first layer (C/F-1). After that, it can be seen that the solid solution to the extent that the lower part of the second layer is submerged is injected.

9 illustrates various embodiments of patterns of composite fibers.

9a, 9b, and 9c, it can be seen that the distance between the date patterns becomes narrower. The more the number of the date patterns forming one layer, the more the area in contact with outside air or pollutants increases.

Referring to FIG. 9 , it can be seen that the straight patterns of the upper layer directly connected to the lower layer are perpendicular to each other. However, this is only an example, and it is also possible to make angles formed by straight-line patterns of different layers form angles other than right angles. For example, the lower layer has two-dimensionally arranged straight-line patterns, but the upper layer can be implemented with a plurality of circular patterns in the form of concentric circles.

10 illustrates examples of various thicknesses of patterns constituting composite fibers.

10a, 10b, and 10c, when the thickness of the pattern becomes thicker, it may be set differently according to the diameter of the discharge port constituting the discharge unit 4 and the material of the composite fiber. FIG. 10A shows a case where the diameter of the discharge port is 0.6 mm, FIG. 10B shows a case of 6 mm, and FIG. 10C shows a case where the diameter is 10 mm.

11 is a cross-sectional view of another embodiment of the composite fiber manufacturing apparatus with five discharge ports shown in FIG.

12 is an enlarged internal view of the dotted oval of FIG. 11;

Referring to FIGS. 11 and 12 , it can be seen that the number of discharge ports constituting the discharge unit 4 is five.

As described above, in the present invention, by varying the number of outlets, the number of line-shaped patterns generated by one movement of the position adjusting stage can be adjusted, and the thickness of the patterns can be adjusted by adjusting the diameter of the outlets. It is natural that the distance between the straight pattern and the other adjacent straight patterns can be adjusted by adjusting the distance between the discharge ports.

The above-described present invention can be implemented as computer readable code on a medium on which a program is recorded. The computer-readable medium includes all types of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable media include Hard Disk Drive (HDD), Solid State Disk (SSD), Silicon Disk Drive (SDD), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. there is

In the above, the technical idea of the present invention has been described together with the accompanying drawings, but this is an illustrative example of a preferred embodiment of the present invention, but does not limit the present invention. In addition, it is obvious that anyone skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

1: Positioning stage
2: Composite fiber solution injector
3: pressurization device
4: discharge part
5: substrate
6: rotation drive
7: Reactor
8: composite fiber solution feeder
9: solid solution feeder
10: solid solution ejector
11: ultrasonic device

Claims (13)

In the composite fiber manufacturing apparatus for producing composite fibers inside a reactor containing a space of a certain size,
a position control stage movable in x, y, and z directions from the top of the reactor;
a substrate installed inside the reactor;
A composite fiber solution injector mounted on the position control stage and discharging the composite fiber solution to the top of the substrate while moving;
a solid solution supplier supplying a solid solution to an empty space of the reactor; and
Composite fiber manufacturing apparatus comprising a solid solution discharger for collecting the used solid solution from the reactor. In paragraph 1,
Composite fiber manufacturing apparatus further comprising a rotation drive for rotating the substrate. In paragraph 1,
Composite fiber manufacturing apparatus further comprising an ultrasonic device for vibrating the inside of the reactor. In claim 1, the position control stage,
When the composite fiber solution injector produces one layer of composite fibers, it moves in a horizontal direction,
A composite fiber manufacturing device that moves upward in a vertical direction from a substrate as the layer of composite fibers to be manufactured increases. The method of claim 1, wherein the solid solution supplier,
Composite fiber manufacturing apparatus for increasing the supply amount corresponding to the height of the layer whenever each layer constituting the composite fibers produced on the substrate is generated. The method of claim 5, wherein the solid solution supplier,
Before the layer of the composite fiber to be produced is completed, the solid solution is supplied to such an extent that only the lower part of each layer is submerged,
Composite fiber manufacturing apparatus for supplying the solid solution to the extent that the composite fiber layer of the layer of the layer to be produced is completed is submerged to the top. In claim 1, the composite fiber solution,
Composite fiber manufacturing apparatus that is a chitosan solution or a chitosan-biomass mixed solution containing chitosan powder dissolved in an acetic acid solution. In claim 1, the solid solution,
Composite fiber manufacturing device that is one of NaOH (sodium hydroxide), ammonia, and basic moxin solution. In claim 1, the composite fiber solution injector,
Composite fiber manufacturing apparatus for discharging the composite fiber solution to the top of the substrate using at least one discharge port. In paragraph 9,
The diameter of the discharge port is variable composite fiber manufacturing apparatus according to the characteristics of the composite fiber to be manufactured. In paragraph 1,
Composite fiber manufacturing apparatus further comprising a pressurizing device for providing the pressure necessary for the composite fiber solution injector to discharge the composite fiber solution. In the composite fiber manufacturing method using the composite fiber manufacturing apparatus of claim 1,
A preliminary preparation step of preparing the composite fiber solution and the solid solution and determining how many layers to form the composite fibers in advance;
It is performed inside the reactor, and by controlling the position control stage, the composite fiber solution in a sol state is discharged from the composite fiber solution injector onto the substrate or on top of the composite fiber layer that has already been created to create one composite fiber layer. doing;
A solid solution input step of filling a solid solution of the solid solution feeder from the bottom of the reactor so that a lower part of the composite fiber layer is submerged;
A composite fiber manufacturing completion determination step of determining whether the generated composite fiber layer is a target layer and performing the step of creating one composite fiber layer when it is determined that a composite fiber layer should be added; and
When it is determined that the composite fiber layer generated in the composite fiber manufacturing completion determination step is the target layer, the solid solution addition step of additionally introducing the solid solution to a level covering the upper part of the composite fiber layer
Composite fiber manufacturing method comprising. In paragraph 12,
The resulting single layer of composite fibers has a two-dimensional arrangement of straight-line patterns arranged in parallel,
The direction of the linear pattern constituting the composite fiber layer formed by laminating on top of the one layer is generated to form a right angle with the linear pattern constituting the composite fiber of the one layer.

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