KR100667370B1 - Continuos hot melt blown apparatus for preparing of hybrid filter with high performance - Google Patents

Abstract

An apparatus for preparing hot melt blown adhesion type functional hybrid filter is provided to remove significantly the noxious ionic gas. A conveyor belt(3) moves a filtering member(1) and is driven by a motor(2). A hopper(4) projects the hot melt viscosity materials(6) to be coated on the filtering member. A melting extruder(5) melts and extrudes the hot melt viscosity materials projected from the hopper. A multi projection nozzle(7) is located at the upper portion of the conveyor belt and projects the hot melt viscosity materials extruded from the melting extruder. An air compressor(8) is connected with the multi projection nozzle and projects the hot melt viscosity materials together with the heated air with high pressure.

Description

Continuos hot melt blown apparatus for preparing of hybrid filter with high performance}

1 shows a process according to the forward rotation of the composite filter manufacturing apparatus according to the present invention.

Figure 2 shows that the air filter further provided in the composite filter manufacturing apparatus according to the present invention.

Figure 3 shows the process according to the reverse rotation of the composite filter manufacturing apparatus according to the present invention.

Figure 4 shows that the attachment filter further provided in the composite filter manufacturing apparatus according to the present invention.

-Description of the main symbols in the drawing-

(1) Filter materials (2) Forward and reverse drive motors (3) Conveyor belts

(4) Hopper (5) Melt Extruder (6) Hot Melt Adhesive

(7) Multi Spray Nozzles (8) Air Compressors (9) Fillers

(10) Filler feeders (11) Crimp rollers (12) Air injection devices

(13) Attachment Supply Part

The present invention relates to a device for manufacturing a clean room chemical composite filter material for the production process, such as general industrial air cleaning filter material and semiconductor, pharmaceuticals.

In recent years, the rapid development of various industries and the resulting environmental pollution, as well as the clean room installation and air purification, which is essential for the production of precision products, is essential for the development of a chemical filter manufacturing apparatus for solving this problem.

Currently used chemical filters are mainly manufactured by using adhesives, such as by hand or using solvents, the secondary pollutants are discharged due to this problem, the situation of the developed countries have been attracting attention to solve them.

Current methods of manufacturing filters to remove harmful gases from the process or outside air include impregnated activated carbon, catalytic, pyrolysis, and ion exchange. Among these methods, the impregnated activated carbon method and the ion exchange method are used for assembling activated carbon or ion exchange resin or filling a column. In particular, in the case of impregnated activated carbon, an assembly process is essential in order to use them as a filter. In order to attach them on a fiber such as a cake or a nonwoven fabric, spray adhesives in which acrylic or solvent are mixed are used. However, this method has a disadvantage in that the adsorption efficiency is lowered because the contact part is coated on a material to which adsorption by micropores, such as activated carbon, is applied because the resin is dissolved in a solvent. In the case of the ion exchange resin, like the activated carbon, the adhesive is coated on the entire surface when attached to the fiber, and thus has a great influence on the ion exchange adsorption capacity.

In addition, the filter made of ion exchange resin has good removal efficiency in manufacturing air cleaning filter, but has the disadvantage of high process pressure loss and slow processing speed due to granularity like activated carbon. In addition, in the case of activated carbon, the assembled filter has a heavy weight and is not free in form, so there is a limit to use. Therefore, in order to improve this, we recently fabricated a chemically stable, non-woven fabric such as polypropylene with excellent mechanical strength, and manually bonded granular activated carbon or bead ion exchange resin using an adhesive to air-clean composite filter. To manufacture. However, as mentioned above, these methods require low work efficiency and low performance, which is an urgent need for improvement of the process. Therefore, in order to remedy these shortcomings, it is necessary to develop a new filter manufacturing apparatus that does not use a solvent and is easy to attach mechanically. Do.

Therefore, in the present invention, by continuously manufacturing a composite filter manufactured by hand manually developed a continuous composite filter manufacturing apparatus of hot melt blown adhesive method for manufacturing a high-productivity air cleaning composite filter material.

The present invention is a composite filter material for the continuous hot-melt blow method is filled with a high density to fill a variety of filter substrates, such as fibers, nets, non-woven fabrics, films, sheets and porous plates in a high density, easy and continuous automation It aims to provide a manufacturing apparatus.

Another object of the present invention relates to the manufacture of a device that can be manufactured according to the use of a variety of filters irrespective of the type of filler and filter substrate and the type of adhesive or adhesive material, and provides a device capable of manufacturing a composite filter of various forms To provide.

The present invention for achieving the above object is to continuously manufacture a composite filter conventionally performed by hand, and after various types of hot melt adhesive is freely sprayed on the filter substrate using high-compression air, the filler to the desired density The present invention relates to an apparatus capable of continuously producing a composite filter by adhering and passing a pressing roller.

More specifically, the present invention

A conveyor belt 3 which moves the filter base 1 and is driven by the motor 2;

A hopper 4 for introducing a hot melt adhesive 6 applied to the filter base 1;

A melt extruder 5 for melting and extruding the hot melt adhesive 6 injected from the hopper 4;

Located at the upper portion of the conveyor belt (3), to spray the hot melt adhesive (6) extruded from the melt extruder (5) in order to apply the molten hot melt adhesive (6) on the moving filter substrate (1) Multi-injection nozzles 7;

An air compressor (8) connected to the multi-jet nozzle (7) for injecting the molten hot melt adhesive (6) together with the air heated at high pressure;

A filler feeder (10) for supplying a filler (9) attached to the filter substrate (1) to which the hot melt adhesive (6) is applied at a rear end of the multi-jet nozzle (7); And

A pressing roller 11 for pressing the filler 9 to fill the inside of the filter base material;

The present invention relates to a hot melt blown adhesive composite functional filter manufacturing apparatus.

In the present invention, the air compressor 8 is connected to the compressed air injection device 12 (shown in FIG. 2), which may be further provided between the filler supply 10 and the compression roller 11, and is not attached to the filter substrate. Compressed air can be injected to desorb the material.

In addition, in the present invention, the motor 2 is capable of forward and reverse rotation, and in the case of reverse rotation (shown in FIG. 3), the multi-jet nozzle 7 may move forward of the filler feeder 10. In the case of rotating in the reverse direction, the filler may be supplied after the hot melt adhesive is applied in the same process.

In addition, in the present invention, an attachment supply unit 13 (shown in FIG. 4) for supplying any one selected from a cloth, a mat, and a nonwoven fabric for attaching to the upper portion of the filter base filled with a filler at the end of the conveyor belt 3. To be further provided so that the filling material is not discharged, or may be laminated in multiple layers to be able to manufacture a composite filter.

1 shows a process according to the forward rotation of the composite filter manufacturing apparatus according to the present invention. Figure 2 shows that the air filter further provided in the composite filter manufacturing apparatus according to the present invention. Figure 3 shows the process according to the reverse rotation of the composite filter manufacturing apparatus according to the present invention. Figure 4 shows that the attachment filter further provided in the composite filter manufacturing apparatus according to the present invention.

Hereinafter, the apparatus of the present invention will be described in detail with reference to FIG. 1, and the process of manufacturing a bokpop filter using the apparatus of the present invention will be described by way of example.

The present invention relates to an apparatus for producing a composite filter material having a low process differential pressure by a continuous hot melt blow method, and to a filter base material (1) made of various fibers or plastics such as polypropylene, polyethylene, nylon, acrylic fiber and carbon fiber. The present invention relates to an apparatus for producing a composite filter material by attaching various fillers (9) on beads by uniformly dispersing the hot melt adhesive (6) inside and outside of the substrate and the adhesive solvent with compressed air.

In the present invention, the filter substrate (1) is a sheep, anion exchange fiber, woven fabric, mat, nonwoven fabric and general polypropylene film, cloth, sheet, porous material, rod, plate, honeycomb, inorganic, paper sheet, paper sheet, Any one or two or more substrates selected from the net form may be laminated and used without being limited thereto. For example, it is also possible to use heterogeneous base materials in which a film such as vinyl and a cloth are combined.

The filter substrate 1 is attached to the conveyor belt 3 while being unrolled by a roller, and is moved. In this case, the conveyor belt 3 is driven with a motor 2 capable of forward and reverse rotation.

When the filter substrate 1 is unwound and moved on the conveyor belt 3, first, the hot melt adhesive 6 is applied, and the hot melt adhesive 6 is sufficiently melted in the melt extruder 5 equipped with the hopper 4. And extruded, the pressure-sensitive adhesive can be applied to the inside of the filter substrate (1) by generating air compressed by heat in the air compressor (8) and spraying at high pressure with the hot melt adhesive (6). At this time, the melting temperature is preferably to vary the temperature rise conditions according to the type of hot melt adhesive used, more preferably to adjust the melt viscosity to be radiated from the nozzle even at a heating air speed of 0.1 m / sec good.

In the present invention, the apparatus for applying the hot melt adhesive (6) is used as a multi-spray nozzle (7), the multi-spray nozzle (7) is a spider splitter, sprayed by a spider web spraying method to the inside of the filter substrate There is a characteristic that can penetrate. In addition, the position of the nozzle is preferably configured to be able to adjust the height and the radiation width up and down. At this time, the injection speed is 0.1 ~ 2 m / sec, the nozzle temperature is 50 ~ 250 ℃, the spray angle is 90 degrees, the spray nozzle height is preferably applied to 5 to 20 cm.

In the present invention, the hot melt adhesive is selected from polyolefin-based (polyethylene-based, polypropylene-based), modified polypropylene-based, polyisoprene-based (styrene-isoprene-styrene-based), wet type polyurethane type, dry type polyurethane type (thermosetting type) Any one or two or more thereof may be used, and any one of two or more solvents may be used without limitation, as long as it is conventionally used in the field of solvent-free hot melt adhesive. Ethylene vinyl acetate-based (EVA-based) adhesives are typical adhesives for hot melts, and are mainly used in packaging related or general adhesive sealing fields. Polyamide-based adhesives have recently been used for hot melt molding because of excellent tack, hardness, and heat resistance. It is widely used and used in various other manufacturing process fields. Polyester-based adhesives are mainly used in the field of manufacturing parts for home appliances and automobiles because of their excellent heat resistance, and rubber-based adhesives are mainly used in film paper and textile fabrics. Polyurethane-based adhesives are used for rubber, metal, shoe soles, textiles, wood, and plastics because they have excellent solidity, elasticity, heat resistance, and weather resistance. Is an adhesive that is increasing.

The filler 9 is sprayed from the filler feeder 10 onto the filter substrate 1 to which the hot melt adhesive 6 is applied, wherein the filler feeder 10 is further provided with a vibrating tool (not shown). The amount can be freely adjusted in a vibrating manner, and the filler can be freely determined by the speed and the injection amount of the conveyor belt (3), and can be attached to the desired amount so that the filler can be used in various applications. That is, the filler supplier 7 or the conveyor belt 3 may be provided with a vibrating means (not shown) so that the filler is evenly applied to the filter substrate.

In the present invention, the filler may be any industrial functional material such as organic, inorganic, ion exchange resin, ion exchange short fibers, zeolite, activated carbon, titanium oxide, such as particulate, powder, fibrous. However, even if the particle size is attached to the substrate, it is preferable to use the ground so that the average particle diameter is 5 mm or less so that the adhesive surface can be secured. All the adhesion materials used as the filler may be commercially available or all prepared, and the average particle diameter of the particles is preferably adjusted in consideration of possible pressure loss.

Next, the pressing roller 11 is passed to set the attachment substance to be strongly fixed to the substrate, and the composite filter material is smoothed. The filter substrate, which has passed the pressing roller 11, is completely filled with the filter substrate and penetrates into the inner space as well as the surface of the filter substrate.

Next, an aspect shown in FIG. 2 of the present invention will be described. In the apparatus shown in FIG. 1, an air injection device 12 is further provided at the rear end of the filler supplier 7, and the air injection device 12 is provided. ) Is provided to detach the filler 9 which is connected to the air compressor 5 and does not adhere to the filter substrate.

Figure 3 shows that the motor 2 of the present invention is rotated reversely, the motor 2 of the present invention can be rotated forward or reverse, the sensor (not shown) at the end of the conveyor belt of the present invention When the filter substrate is in contact with the sensor, the motor is reversely rotated, and when the conveyor belt 3 is reversely rotated by the motor as shown in FIG. 3, the multi spray nozzle 7 is the filler feeder 10. ) Can be moved to the front end. That is, it is possible that the multi-injection nozzle 7 of the present invention is provided by means that can be moved before and after the filler feeder 10. By repeating the reverse driving method, various kinds of fillers, that is, attachments can be fixed to the substrate in multiple layers, and in some cases, a process of bonding an external substrate to the substrate in a double layer can be added. . That is, as shown in Figs. 1 and 2, after the forward rotation, the filler is filled and fixed in the filter material, and as shown in Fig. 3, the other filler is filled by the reverse rotation.

Figure 4 is further provided with an attachment supply unit 13 for supplying any one selected from the cloth, mat, non-woven fabric for attaching to the upper portion of the filter base filled with a filler at the end of the conveyor belt (3) in the present invention will be. That is, it is possible to attach a cloth, a mat, etc. of various thicknesses to prevent the detachment of the attachment, and then rotate in the reverse direction again to apply hot melt on it again, to fix the attachment and to attach the cloth or mat in steps as desired. It is also possible to add calendar type sandwich processes.

That is, when using the device of the present invention,

1) applying a molten hot melt adhesive or a solution adhesive to the substrate in a desired state using heated compressed air;

2) automatically attaching the adhesive to the substrate to which the hot melt adhesive or the solution phase adhesive is applied;

3) passing the compression roller or thermosetting heating zone so that the deposit is inserted into and fixed to the substrate surface and the inside thereof, and smoothing the composite filter material;

4) winding the composite filter material automatically to use it for a second purpose (double attachment base material, bending base material, etc.);

This enables fabrication of a fiber composite filter material in which the attachment is attached to the substrate at 30-40% higher density than conventional manual processes.

The present invention can also be rotated in the reverse direction using the above as a base material, after the step 3), to apply a pressure-sensitive adhesive or an adhesive again and to apply different adherents to it, thereby enabling the production of a double layer composite filter, 2) a calender-type sandwich which can attach cloth, mat, etc. of various thicknesses to prevent detachment of the deposit after the process, apply hot melt on it again, fix the deposit, and attach the cloth or mat step by step as desired. It is also possible to add process steps.

The device according to the present invention is capable of producing a composite filter material in a variety of and simpler processes than the conventional device, and in particular, the bead-like resin can be uniformly fixed to a filter substrate such as a nonwoven fabric than in the prior art. It has the advantage of maximizing performance and reducing the cost of filter material manufacturing by continuous process. Therefore, the present invention is expected to be possible to replace the conventional material manufacturing technology and apparatus, and it is possible to manufacture a variety of filter materials, fine chemical composite filters such as clean room, as well as general industrial filter materials can be manufactured The wide applicability of the design device is expected.

The fiber composite filter material manufacturing apparatus to which the adherent material is attached at a high density according to the present invention enables manufacturing of the composite filter material by a simple method of a continuous process, thereby not only automating the existing composite filter material manufacturing method but also processing cost. The effect can be reduced.

In addition, the high-capacity composite filter material prepared by the present invention has the advantage that solvent volatiles in the existing adhesive are not released when applied to the semiconductor clean room process, and in particular, a large amount of bead ion exchange resin compared to the conventional filter material It can combine the effect of increasing the removal efficiency of trace harmful gases.

Another important effect of the invention is to freely select the substrate and to diversify the type of the bead-bonded material, thus reducing the cost of manufacturing the composite filter using the material of the present invention, as well as eliminating harmful ingredients such as acid, basic and ozone. It is possible to manufacture a filter that can be used for various purposes can provide an easy device for industrial use.

Claims (6)

A conveyor belt 3 which moves the filter base 1 and is driven by the motor 2; A hopper 4 for introducing a hot melt adhesive 6 applied to the filter base 1; A melt extruder 5 for melting and extruding the hot melt adhesive 6 injected from the hopper 4; Located at the upper portion of the conveyor belt (3), to spray the hot melt adhesive (6) extruded from the melt extruder (5) in order to apply the molten hot melt adhesive (6) on the moving filter substrate (1) Multi-injection nozzles 7; An air compressor (8) connected to the multi-jet nozzle (7) for injecting the molten hot melt adhesive (6) together with the air heated at high pressure; A filler feeder (10) for supplying a filler (9) attached to the filter substrate (1) to which the hot melt adhesive (6) is applied at the rear end of the multi-jet nozzle (7); And A pressing roller 11 for pressing the filler 9 to fill the inside of the filter base material; Hot melt blown functional composite filter production apparatus characterized in that consisting of. The method of claim 1, The air compressor (8) is hot melt blown adhesive type functional composite filter manufacturing, characterized in that connected to the air injection device 12 for injecting air for desorbing the adherent substances that do not adhere to the filter substrate at the filler feeder 10 Device. The method according to claim 1 or 2, The motor (2) is hot melt blown adhesive type functional composite filter manufacturing apparatus, characterized in that capable of forward and reverse rotation. The method of claim 3, wherein Hot melt blown adhesive type functional composite filter manufacturing apparatus, characterized in that when the motor (2) is rotated in reverse, the multi-jet nozzle (7) can move to the front end of the filler feeder (10). The method of claim 4, wherein The filler supplier (10) or the conveyor belt (3) hot melt blown adhesive type functional composite filter manufacturing apparatus, characterized in that the vibrating mechanism is provided so that the filler is evenly applied to the filter substrate. The method of claim 5, Hot melt bubble, characterized in that the conveyor belt (3) is further provided with an attachment supply unit 13 for supplying any one selected from cloth, mat, non-woven fabric for attaching to the upper portion of the filter base filled with a filler Low pressure adhesive functional composite filter manufacturing device.

Images