TW201417876A - Two-in-one filter cartridge of paper fibre and powdered activated carbon and preparation method thereof - Google Patents

Abstract

Since the paper fiber will be swollen to break in contact with water and cannot seize the carbon powder, the carbon power will be washed away during filtering process. Therefore, wet strength agent like melamine and pet, etc. is added to make paper waterproof, which will harm the environment and human health when used in drinking water. This invention uses multi-sleeve structure to firmly fix the paper fiber without using or using little chemical agent. Given that different materials exhibit different swelling properties when in contact with water, the paper is made so that it is not allowed to swell to keep the paper integrity. This invention can be applied to drinking water, factory of soy sauce for decolorization, and factories of beer, wine, MSG, and sugar, and so on.

Description

Two-in-one paper fiber powder activated carbon filter core and preparation method thereof

The invention relates to a product and a preparation method for drinking water and other clean water purification, medicine, wine making, food decolorization, organic solvent adsorption filtration, in particular to a filter element and a filter core for combining paper fiber and activated carbon powder. method.

In liquids, whether in industrial production, plating solutions, food, beverages, water, or household water, it is necessary to keep clean, with the liquid in the process being contaminated, or adding chlorine gas, disinfecting water, and processing in the tap water treatment. Harm to health. Therefore, most of the activated carbon filter core adsorbs excess organic matter in the liquid to achieve purity, decolorization, deodorization and the like. (paper fiber powder activated carbon) has very large (surface area) and strong adsorption, decolorization, odor removal performance, can be widely used in water treatment and air filtration purification, especially in drinking water purification treatment Application range. At present, domestic activated carbon or (paper fiber powder activated carbon filter) mainly adopts molding or winding forming process. The disadvantage of compression molding is that the content of filter element binder is too large, which will significantly reduce the specific surface area of activated carbon or activated carbon fiber, so that Adsorption, decolorization, and odor removal performance are greatly reduced. It is made by winding molding (paper fiber powder activated carbon filter), which is easy to cause bacteria growth on the filter element during use. Moreover, the wound activated activated carbon fiber filter element tends to drop the activated carbon powder during use. The use time should not be too long, because the activated carbon fiber filter foam will loosen the structure for a long time, and the activated carbon powder will be lost.

The PP filter element is made by polypropylene (PP) hot melt method, and its micron number is from 1um to 300um. The inner core of the filter element adopts the inner and outer sparse design, which not only maintains stable flow, pressure difference and service life, but also has excellent depth filtration effect and pollutant accumulation. It is a high efficiency, low pressure difference and long service life. And a wide range of filter cartridges. Because the chemical composition of PP is clean and meets the food hygiene standards, it will not cause secondary pollution to the liquid to be filtered due to the material. It has the characteristics of large flow, high precision, corrosion resistance and high pressure resistance. It is widely used in PCB, electroplating, Pure water, food and drinking water pre-filtering treatment; RO infiltration pre-filtration treatment.

One of the objects of the present invention is to provide a new filter material, that is, a two-in-one paper fiber powder activated carbon carbon rod, which can overcome the shortcomings of the old paper fiber powder activated carbon filter product which is not durable and has a short service life.

Another object of the present invention is to provide a new two-in-one paper fiber powder activated carbon filter capable of overcoming the disadvantages of the old filter element containing only one filter layer.

The second object of the present invention is to provide a novel two-in-one paper fiber powder activated carbon filter core preparation method, which can efficiently and quickly prepare the above-mentioned two-in-one paper fiber powder activated carbon filter element.

In order to achieve the above object, the present invention adopts the following technical solution: a two-in-one paper fiber powder activated carbon filter, comprising at least three coaxial tightly sleeved filter layers, from the inside to the outside: the inner layer is a PP filter , the tubular layer; the middle layer is a two-in-one paper fiber powder activated carbon carbon rod, which is tubular and is sleeved outside the PP filter; The outer layer is a fixed protective layer, which is sleeved outside the two-in-one paper powder activated carbon carbon rod; and an end cover for sealing both ends of each filter layer of the two-in-one paper powder activated carbon filter element.

The two-in-one paper fiber powder activated carbon carbon rod comprises activated carbon powder and paper fiber, mixed with water, made into pulp, and molded.

In use, since the inner layer PP filter tube not only has a filtering function, but also functions to support the entire filter element, after all, the PP filter tube is a loose material, and its hardness and toughness are not strong enough, and if When the temperature is high, the PP filter tube will also become soft, resulting in deformation of the entire filter element. Therefore, in order to strengthen the strength of the filter element, a support layer may be disposed in the middle of the inner layer PP filter tube, which is in a tubular shape. Inside the inner PP filter tube. And coaxial with the inner layer PP filter tube. The support layer may also be a plastic support skeleton with a plurality of water holes.

The two-in-one paper fiber powder activated carbon carbon rod further includes one or more of antibacterial fiber, chemical fiber, KDF zinc powder, manganese sand, and silver-added antibacterial activated carbon powder.

The fixed protective layer is a nonwoven fabric.

The fixed protective layer is a PP filter tube.

The invention discloses a method for preparing a two-in-one paper fiber powder activated carbon filter, comprising: combining at least three coaxial tightly sleeved filter layers, and sealing the ends with end caps, wherein the inner layer is a tubular PP filter core, and the middle layer It is a 2-in-1 paper fiber powder activated carbon carbon rod, which uses paper fiber as the main raw material, and adds activated carbon powder, and one or more of activated carbon fiber, antibacterial fiber, manganese sand and silver-added antibacterial activated carbon powder. The mixed water is made into pulp, molded, and the outer layer is a fixed protective layer, which can be made of non-proof cloth or tubular PP filter.

The molding process of the two-in-one paper fiber powder activated carbon carbon rod comprises the steps of using paper fibers The main raw material, adding activated carbon powder, and one or more of activated carbon fiber, antibacterial fiber, manganese sand and silver-added antibacterial activated carbon powder, mixed with water to make pulp; outer cover of inner PP filter tube Connecting a coaxial stainless steel mesh tubular mold, injecting the above raw material into the stainless steel mesh tubular mold; applying pressure to the inner tube of the inner PP filter tube to form a gas wall to prevent the micropores on the inner PP filter tube from being activated carbon The powder was stoppered; then the above raw materials were dehydrated by a vacuum pump to obtain a molded two-in-one paper fiber powder activated carbon carbon rod.

The paper fibers include one or more of natural fibers of hemp, cotton, bamboo, grass, and wood.

The beneficial effects of the present invention are as follows: First, by using paper fiber as a main raw material, adding activated carbon powder, and one or more of activated carbon fiber, antibacterial fiber, manganese sand and silver-added antibacterial activated carbon powder, molding The intermediate layer of a two-in-one paper fiber powder activated carbon filter combines the advantages of paper fiber (the characteristics of bifurcation entanglement) and the adsorption capacity of activated carbon powder, mainly based on paper fiber and activated carbon powder. At the same time, other raw materials can be added according to the needs of filtration, and these raw materials are processed into a hollow carbon rod form, which overcomes the shortcomings of the prior art which are formed into a roll paper-like winding form and are not durable.

Second, the inner layer uses a PP filter tube as a support, and utilizes the porous structure of the PP filter tube to filter foreign matter and powder activated carbon of the filter itself.

Third, the outer protective layer of the outer layer is also made of PP filter tube structure (or non-woven fabric), and the middle layer of two-in-one paper fiber powder activated carbon carbon rod is wrapped, which can function as a coarse particle filter.

Fourth, since the inner layer PP filter tube not only has a filtering function, but also functions to support the entire filter element, however, after all, the PP filter tube is a loose material, and its hardness and toughness are not strong enough, and if the temperature Higher, the PP filter tube will also become soft, resulting in deformation of the entire filter element. Therefore, in order to strengthen the strength of the filter element, it is also possible to A support layer is disposed in the middle of the filter tube, and the support layer may be a plastic support skeleton with a plurality of water holes.

DRAWINGS

1 is a schematic view showing the structure of a 2-in-1 paper fiber powder activated carbon filter according to the present invention; FIG. 2 is a schematic view showing an embodiment of the present invention; and FIG. 3 is a schematic view showing another embodiment of the present invention.

The technical solutions of the present invention are further elaborated below in conjunction with the specific embodiments.

As shown in Fig. 1, a two-in-one paper fiber powder activated carbon filter element comprises at least three coaxial tightly sleeved filter layers, from the inside to the outside: the inner layer is a PP filter element (2), which is tubular; The layer is a two-in-one paper fiber powder activated carbon carbon rod (3), which is tubular and sleeved on the outside of the PP filter element; the outer layer is a fixed protective layer (4), and is sleeved on the two-in-one paper fiber powder activated carbon carbon rod And an end cap (1) for sealing both ends of each filter layer of the two-in-one paper powder activated carbon filter.

The two-in-one paper fiber powder activated carbon carbon rod includes activated carbon powder and paper fiber, and one or more of an antibacterial fiber, a manganese sand, and a silver-added antibacterial activated carbon powder, which are molded from the above raw materials.

As shown in FIG. 2, in the first embodiment, in the use, since the inner layer PP filter tube not only has a filtering function, but also functions to support the entire filter element, after all, the PP filter tube is A loose material whose hardness and toughness are not strong enough, and if the temperature is high, the PP filter tube will also become soft, causing the entire filter element to be deformed, and therefore, in order to strengthen the strength of the filter element, it is also possible therein. A plastic support frame (6) with a plurality of water holes is arranged in the middle of the layer PP filter tube.

The fixed protective layer of the outer layer is a PP filter tube (4).

As shown in Fig. 3, in the second embodiment, the fixed protective layer is a nonwoven fabric (5), and the rest is the same as in the second embodiment.

The invention discloses a method for preparing a two-in-one paper fiber powder activated carbon filter, comprising: combining at least three coaxial tightly sleeved filter layers, and sealing the ends with end caps, wherein the inner layer is a tubular PP filter core, and the middle layer It is a 2-in-1 paper fiber powder activated carbon carbon rod with paper fiber as the main raw material, activated carbon powder, activated carbon fiber, antibacterial fiber, chemical fiber, KDF zinc powder, manganese sand, and silver-added antibacterial activated carbon. One or more kinds of powders are prepared by adding water to make pulp, and the outer layer is a fixed protective layer, which can be made of non-proof cloth or tubular PP filter tube.

The molding step of the two-in-one paper fiber powder activated carbon carbon rod comprises: adding paper fiber as a main raw material, adding activated carbon powder, and activated carbon fiber, antibacterial fiber, manganese sand and silver added antibacterial activated carbon powder. One or more, mixed water is used to make pulp; a coaxial stainless steel mesh tubular mold is sleeved on the outer layer of the inner PP filter tube, and the raw material is injected into the stainless steel mesh tubular mold; the inner layer of the PP filter tube is inside the tube Pressure is applied to form a gas wall to prevent the micropores on the inner PP filter tube from being plugged by the activated carbon powder; and then the above raw materials are dehydrated by a vacuum pump to obtain a molded two-in-one paper powder activated carbon carbon rod.

The paper fibers include one or more of natural fibers of hemp, cotton, bamboo, grass, and wood.

Claims (10)

A two-in-one paper fiber powder activated carbon filter core, comprising: at least three coaxial tightly sleeved filter layers, from the inside to the outside: the inner layer is a PP filter core, which is tubular; the middle layer is a two-in-one a paper fiber powder activated carbon carbon rod having a tubular shape and covering the outside of the PP filter element; an outer layer being a fixed protective layer covering the outer surface of the two-in-one paper powder activated carbon filter; and an end cap for The two layers of the two-in-one paper fiber powder activated carbon filter are sealed at both ends. The two-in-one paper fiber powder activated carbon filter according to claim 1, wherein the two-in-one paper fiber powder activated carbon carbon rod comprises activated carbon powder and paper fiber, mixed with water to make pulp, and molded. . The two-in-one paper fiber powder activated carbon filter according to claim 1 or 2, wherein the filter element is further provided with a support layer which is tubular and located inside the inner layer PP filter tube. And coaxial with the inner layer PP filter tube. The two-in-one paper fiber powder activated carbon composite filter cartridge according to claim 3, wherein the support layer is a plastic support skeleton having a plurality of water holes. The two-in-one paper fiber powder activated carbon filter according to claim 2, wherein the two-in-one paper fiber powder activated carbon carbon rod further comprises chemical fiber, KDF zinc powder, antibacterial fiber, manganese sand, silver One or more of the antibacterial activated carbon powders. The two-in-one paper powder activated carbon filter according to claim 1 or 2, wherein the fixed protective layer is a nonwoven fabric. The two-in-one paper powder activated carbon filter according to claim 1 or 2, wherein the fixed protective layer is a PP filter. The invention discloses a method for preparing a two-in-one paper fiber powder activated carbon filter, characterized in that at least three coaxial tightly sleeved filter layers are combined, and both ends are sealed by end caps, wherein the inner layer is a tubular PP filter core. The middle layer is a two-in-one paper fiber powder activated carbon carbon rod, which uses paper fiber as the main raw material, adding activated carbon powder, and activated carbon fiber and antibacterial fiber. One or more of manganese sand and silver-added antibacterial activated carbon powder, mixed with water to make pulp, molded, and the outer layer is a fixed protective layer, which can be made of non-proof cloth or tubular PP filter. The method for preparing a two-in-one paper fiber powder activated carbon filter according to claim 8, wherein the step of molding the two-in-one paper fiber powder activated carbon carbon rod comprises: adding paper fiber as a main raw material; Activated carbon powder, and one or more of activated carbon fiber, antibacterial fiber, manganese sand and silver-added antibacterial activated carbon powder, mixed with water to make pulp; sleeved on the outer layer of PP filter tube with a coaxial stainless steel a tubular mold for injecting the above-mentioned pulp into the stainless steel mesh tubular mold; applying pressure to the inner tube of the inner PP filter tube to form a gas wall to prevent the micropores on the inner PP filter tube from being plugged by the activated carbon powder; Then, the above raw materials are dehydrated by a vacuum pump, and dried to obtain a molded two-in-one paper fiber powder activated carbon carbon rod. The method for preparing a two-in-one paper fiber powder activated carbon filter according to claim 8 or 9, wherein the paper fiber comprises one or more of natural fibers of hemp, cotton, bamboo, grass and wood.