KR101819126B1 - The Composite Filter for for purifying water and Unity type Composite Filter Using the same - Google Patents

Abstract

The present invention relates to a complex filter element for water purification and an integrated complex filter using the same and, more specifically, to a complex filter element for water purification and an integrated complex filter using the same which can have a simple manufacturing process, greatly reduce manufacturing costs, reduce purification steps, and implement a slim purifier by miniaturizing a multifunctional filter for water purification. The integrated complex filter according to the present invention includes: a nonwoven fabric core layer (30) of a predetermined thickness which is formed in a cylinder shape having a hollow inside; and a complex filter layer which is laminated by surrounding the complex filter element (1) for water purification, which is formed by coating a complex filter formation mixer (10) on an upper lateral side of a nonwoven fabric base layer (20) at predetermined thickness, on an outer lateral side of the nonwoven fabric core layer (30) in multiple layers.

Description

TECHNICAL FIELD [0001] The present invention relates to a composite filter for water purification,

[0001] The present invention relates to a water purification composite filter body in which individual water purification filter bodies are formed by a single integral filter body, and more particularly to an integral composite filter using the same, It is possible to perform a multifunctional filtration function with one composite filter body, thereby simplifying the manufacturing process and significantly lowering the manufacturing cost as compared with the conventional production of the filter bodies of the respective functions, Which can be reduced in number of purification stages by using an integral type composite filter formed by a single complex filter body without having to go through a multistage, and can realize a slim type water purifier capable of miniaturizing a water purification type multifunction filter, and an integral type complex filter body using the same Filter.

In modern times, as the standard of living has been increasing, interest in health has also been rising. Among them, the market of water purifier industry is gradually expanding as the interest in food that is most closely related to human life is increasing.

Generally, drinking water is divided into two types: drinking water that has already been purified, ground water and bottled water, and drinking water directly from a water purifier. Recently, however, the number of people using direct water purifiers is increasing because the pollution of ground water is serious and the bottled water sold by the company is often polluted. As a result of this interest in water, water purifiers have been used only for drinking water. However, as the use range of water purifiers has been gradually expanded, purified water is also used for cooking water used in kitchens.

Conventional water purifiers purify water discharged from a water purifier provided in a water purifier and discharge the water. Examples of materials used for the purifier filter include a carbon filter, a sediment filter, and a UF membrane filter. Here, the carbon filter is usually divided into a first filter and a second carbon filter. The first filter is also referred to as a pre-carbon filter and serves to filter chlorine, residual pesticide and detergent components. The second carbon filter, It also removes various odors contained in water and plays a role of improving water taste. The sediment filter is a high turbidity filter that filters out large suspended solids. The UF membrane filter acts to filter heavy metals in water and various microorganisms and bacteria.

Such a water purifier filter is installed inside each filter housing. In the prior art water purifier, a plurality of filter housings having respective filters are installed to increase the volume of the water purifier, increase material and installation cost, and inconvenient maintenance .

Accordingly, in the patent application No. 10-1026928 entitled " Water filter and its manufacturing method ", a sediment filter layer, an ACF (Acid Carbon Fiber) A filter layer, a UF (hollow fiber) filter layer, and a core filter layer are sequentially formed and then sequentially wound and then heat-pressed to form an integral water filter. Conventionally, However, in this case,

In the case of the integral filter, since the filter bodies having different functions are respectively formed in the manufacturing process and then laminated with one filter body, the manufacturing process is complicated and the manufacturing cost is increased. In addition, And the filter is formed in a single filter so that the thickness and the volume of the filter are increased and it is difficult to mount the filter in a small water purifier.

Patent No. 10-1026928 (entitled " Water filter and its manufacturing method ")

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a filter device, which is capable of simplifying a manufacturing process,

It is possible to reduce the number of purification stages by using an integral type composite filter formed of one complex filter body for purification without having to go through multiple purification steps in multiple stages and minimize the thickness and volume of the complex filter so that it can be easily used in a small water purifier .

According to an aspect of the present invention, there is provided a water filter for purifying water by adsorbing contaminants suspended in water or removing particles to remove water, the filter filter comprising pulp, polyethylene terephthalate (PET) A composite filter forming mixture 10 formed by mixing a predetermined amount of Urethane hot melt, activated carbon powder and chitosan powder, respectively; And a nonwoven fabric base layer (20) on which an upper surface of the composite filter forming mixture (10) is applied with a predetermined thickness; (1), which is characterized in that it is formed to include a filter (1).

In the composite filter body for water purification (1) according to one aspect of the present invention, the composite filter forming mixture (10) comprises 8 to 18% by weight of pulp; 1 to 3% by weight of PET staple fibers; 9 to 11% by weight of a polyurethane hotmelt; 30 to 34 wt% of activated carbon powder; And 42 to 44% by weight of chitosan powder.

A nonwoven core layer 30 of a predetermined thickness formed into an inner hollow cylindrical shape; And 8 to 18% by weight of pulp; 1 to 3% by weight of PET staple fibers; 9 to 11% by weight of a polyurethane hotmelt; 30 to 34 wt% of activated carbon powder; (1) formed by applying a composite filter forming mixture (10) formed by mixing a non-woven fabric layer (42) and a chitosan powder (42 to 44 wt% A composite filter layer laminated on the outer surface of the layer 30 in multiple layers; The present invention also provides an integrated composite filter including the above-described filter.

INDUSTRIAL APPLICABILITY The complex filter body for water purification according to the present invention and the integrated composite filter using the same can form a single filter body for each of the filter bodies having different functions to simplify the manufacturing process and reduce the manufacturing cost,

It is possible to reduce the number of purification steps and to reduce the thickness and volume of the composite filter by using the integral type composite filter formed of one complex filter body for purification without having to go through several stages of purification steps in multiple steps, .

FIG. 1 is a perspective view of a complex filter body for water purification according to the present invention and an integral composite filter using the same. FIG.
FIGS. 2A and 2B are a plan view and a cross-sectional view, respectively, of a composite filter for water purification according to the present invention and an integrated composite filter using the same, wherein the integrated filter is formed using the composite filter for purification of FIG. 1;
FIG. 3 is a cross-sectional view illustrating a process of the integrated complex filter according to the present invention and the integrated composite filter using the same, wherein the integrated composite filter is installed inside the filter housing to flow water.

Hereinafter, embodiments of the present invention in which the above object can be specifically realized will be described with reference to the accompanying drawings. In describing the embodiments, the same names are denoted by the same reference numerals, and further description thereof will be omitted below.

Fig. 1 is a perspective view showing a complex filter body for purification 1 in a complex filter body for water purification 1 according to the present invention and an integral composite filter 100 using the same. Figs. 2a and 2b are, respectively, 1 is a plan view and a sectional view showing an integral composite filter 100 formed using the complex filter body 1 for purification shown in Fig. 1 in the composite filter body 1 and the integral composite filter 100 using the composite filter body 1. Fig. Sectional view illustrating a process in which the integrated composite filter 100 is installed in the filter housing and water flows in the complex filter body 1 for a water purification according to the invention and the integral composite filter 100 using the same.

As shown in FIG. 1, in the complex filter body for water purification 1 according to the present invention and the integrated composite filter 100 using the same, the water purification composite filter body 1 is produced by mixing raw materials having various filtration functions, A composite filter forming mixture 10 and a composite filter forming mixture 10 are formed to include a nonwoven fabric base layer 20 applied with a predetermined thickness and used as a base material of the filter composite 1 for purification.

The composite filter forming mixture 10 is formed by mixing predetermined amounts of pulp, PET (polyethylene terephthalate) staple fiber, polyurethane hot melt, activated carbon powder and chitosan powder, respectively, followed by stirring.

Preferably, 8 to 18% by weight of pulp; 1 to 3% by weight of PET staple fibers; 9 to 11% by weight of a polyurethane hotmelt; 30 to 34 wt% of activated carbon powder; And 42 to 44% by weight of chitosan powder.

The pulp uses cellulose acetate as a main raw material and prolongs the durability and service life of the composite filter element 1 through the excellent durability of the cellulosic acetate and serves to adhere and fix the activated carbon powder, Even when the flow rate of the water passing through the sieve 1 is kept low while the flow rate of the water passing through the sieve 1 is increased, it is possible to shorten the purification time while preventing the separation of the activated carbon powder, and since cellulose acetate is not used as a nutrient for viruses or bacteria, This makes it possible to construct a more hygienic filter because it can not grow. When the content of the pulp is lower than 8 wt%, the durability of the composite filter 1 is weakened, and the adhesive force of the activated carbon powder is weakened, so that the powder of the activated carbon tends to be released at a flow rate passing therethrough. The activated carbon powder or the chitosan powder forming the majority of the composite filter forming mixture 10 is mixed with a relatively small amount by the pulp content so that the adsorption filtering function of the composite filter element 1 is deteriorated.

The PET staple fibers serve to adhere and fix the composite filter forming mixture 10 to the nonwoven fabric base layer 20 together with the polyurethane hotmelt. When the content is less than 1% by weight, The mixture 10 may be easily separated and separated from the nonwoven fabric base layer 20. If the content is higher than 3% by weight, the pores of the active plate powder mixed together may be blocked to lower the filtering ability of the activated carbon .

The polyurethane hotmelt has a function of adhering and fixing the composite filter forming mixture 10 to the nonwoven fabric base layer 20 together with the PET staple fibers, 20 when the composite filter element 1 is applied with a predetermined thickness and then cured by natural drying to give a resilience to the composite filter element 1. When the content is lower than 9 wt% When the composite filter body 1 is rolled up and laminated like a cylindrical filter due to its weak elasticity, it may be difficult to roll or crack, resulting in separation and separation. When the content is higher than 11% by weight, The pore of the plate powder may be blocked to lower the filtering function of the activated carbon.

The activated carbon powder acts as a carbon filter to remove residual chlorine and organic compounds in the water and to improve the water taste of the purified water. The activated carbon powder has a function of improving the water taste of the purified water, The pulp, the PET staple fiber and the polyurethane hot melt function as a binder and are agitated together and then naturally dried and cured to be contained in the composite filter body 1. In the case of the conventional integral type composite filter, a mixed solution obtained by mixing granular activated carbon with a binder in the nonwoven fabric base layer 20 is injected at a high speed directly into the carbon layer to form a carbon layer. The activated carbon having a very small granularity is blown into dust during the injection process, However, in the case of the composite filter body 1 according to the present invention, the granulated activated carbon is mixed and stirred in the composite filter forming mixture 10, and then applied to the nonwoven fabric base layer 20 to a predetermined thickness. The mixture 10 is allowed to stand in a static state for a predetermined period of time to naturally dry the composite filter material 1 so that the activated carbon powder is easily applied to the nonwoven fabric base layer 20 even when the particles are very small, (1) can be produced.

The chitosan powder functions to remove heavy metals remaining in water. When the content is less than 42% by weight, the heavy metal removal function is deteriorated. When the content is higher than 44% by weight, So that the filtration ability through activated carbon is degraded. The removal efficiency of heavy metals can be improved by mixing titanium instead of the chitosan powder, but the manufacturing cost is increased.

Preferably, the chitosan powder and the positively charged membrane powder formed by coating a raw material substrate of cellulose acetate with a nano alumina fiber are mixed to remove various bacteria, viruses, heavy metals, and colloids It is possible. In the case of conventional UF membrane filters formed of hollow fibers to remove various bacteria, viruses, heavy metals, etc., the durability of the blanket construction is weak, so that the differential pressure between the water in the filter inlet and the outlet is reduced and the filter is passed However, in the case of the positive charge film, by using cellulose acetate, which is generally known to be superior in durability compared to a hollow fiber, as a raw material base material, the differential pressure of water is lowered and water It is possible to shorten the purification period by increasing the flow rate of the filter through the filter, and since cellulose acetate is not used as a nutrient for viruses or bacteria, viruses and the like can not propagate so that a hygienic filter can be constituted.

Conventional nanofilters may be used for the purpose of removing various bacteria and viruses. In the case of a nanofilter, glass fibers are used as a raw material, and boron may leak out. However, the positive charge layer is made of cellulose acetate Is used as a raw material substrate, there is no possibility of leakage of boron, and it is harmless to the human body with an eco-friendly material, and is decomposed spontaneously in a natural state, so that disposal is easy and environmentally friendly.

As shown in FIGS. 2A and 2B, in the case of the integrated composite filter 100 formed using the water purification composite filter body 1 according to the present invention, A nonwoven core layer 30 and 8 to 18% by weight pulp; 1 to 3% by weight of PET staple fibers; 9 to 11% by weight of a polyurethane hotmelt; 30 to 34 wt% of activated carbon powder; (1) formed by applying a composite filter forming mixture (10) formed by mixing a non-woven fabric (1) and a chitosan powder (42 to 44 wt% And a composite filter layer laminated on the outer surface of the core layer 30 in multiple layers,

Preferably, as shown in FIGS. 2A and 2B, a composite filter layer formed by winding a nonwoven fabric outer layer 40 on the outer surface of the composite filter layer to have a predetermined thickness is wound on the nonwoven fabric core layer 30, It functions to filter out large sized rust material or suspended matter in water such as soil.

The inner hollow nonwoven core layer 30 located at the center of the integrated composite filter 100 functions as a support for supporting the integral composite filter 100 as well as a function for removing floating matters in the water .

As shown in FIG. 3, the integral filter of the integral type composite filter 100 according to the present invention having the above-described structure according to the present invention will be briefly described. The upper end filter cap 51 is provided with an outlet 54 communicating with the inner hollow of the integrated composite filter 100 and the outer periphery of the outlet 54 is provided with a filter housing 51 The filter outlet 50 is provided with a rubber O-ring 55 so that the filter can be sealed by being fitted into the discharge end 53 of the filter housing 50. The filter outlet 54 is tightly fitted to the inner surface of the discharge end 53 of the filter housing 50, The integrated composite filter 100 is mounted inside the filter housing 50 in which the accommodation space is provided.

The raw water is introduced into the filter housing 50 through the inlet end 52 of the filter housing 50 in which the integrated composite filter 100 is mounted and the introduced raw water passes through the filter outer side and the inner hollow outflow path 31, And flows through the outflow path 31 from the outside of the nonwoven fabric outer layer 40 by the differential pressure between the nonwoven fabric outer layer 40 and the nonwoven fabric outer layer 40. As the raw water passes through the nonwoven fabric outer layer 40, Is passed through a composite filter layer in which the composite filter body 1 is formed by winding a plurality of layers of the filter material 1, and the electrophilic property of the nano-alumina fiber coated on the cellulose acetate through the positive charge film causes various bacteria, viruses, heavy metals And the colloid is removed, the heavy metal is removed through the chitosan powder, the residual chlorine and the organic compound are removed by the carbon adsorption force of the activated carbon powder, the water taste is improved, The water discharged to the outflow path 31 is discharged to the outside of the filter housing 50 through the discharge end 53. [

As described above, the water purification composite filter element 1 according to the present invention and the integral composite filter 100 using the same are manufactured by forming each filter element having different functions from one filter element 1 as a composite filtration function The process can be simplified, the manufacturing cost can be reduced,

It is possible to reduce the number of purification steps and reduce the thickness and the volume of the composite filter 100 by using the integral type composite filter 100 formed of one integral type composite filter body 1 without having to go through multiple stages of multiple purification steps It can be easily installed and used in a small water purifier.

It is to be understood by those skilled in the art that the present invention may be embodied in many other forms without departing from the spirit and scope of the invention,

Accordingly, the above-described embodiments are to be considered illustrative and not restrictive, and all embodiments within the scope of the appended claims and their equivalents are intended to be included within the scope of the present invention.

1: a complex filter element for water purification
10: Composite filter forming mixture 20: Nonwoven substrate layer
30: Non-woven fabric core layer 31: Outflow furnace
40: Nonwoven outer layer 50: Filter housing
51: filter cap 52: inlet end
53: outlet stage 54: outlet
55: Rubber O-ring
100: Integrated composite filter

Claims (3)

delete delete The integrated composite filter is provided inside the filter housing (50) to purify the water flowing from the outer side, and then discharges drinking water that people can drink through the inner hollow outflow passage (31)

A nonwoven core layer 30 of a predetermined thickness formed into an inner hollow cylindrical shape; And
8 to 18% by weight of pulp; 1 to 3% by weight of PET staple fibers; 9 to 11% by weight of a polyurethane hotmelt; 30 to 34 wt% of activated carbon powder; (1) formed by applying a composite filter forming mixture (10) formed by mixing a non-woven fabric layer (42) and a chitosan powder (42 to 44 wt% A composite filter layer formed by winding a plurality of layers on the outer surface of the layer 30; ≪ / RTI >

Mixing a predetermined amount of positive charge film powder formed by coating Nano Alumina Fiber on the raw material base of cellulose acetate with the composite filter forming mixture 10 to make the running water that has passed through the composite filter layer as drinking water (100) according to any one of claims 1 to 3, characterized in that the water-soluble bacteria are removed so as to be usable.

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