JP2012035249A - Polyvinyl chloride pipe and metal pipe having coal layer at the inside - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such the problem that a polyvinyl chloride pipe and a metal pipe used as an aqueduct or a vent pipe has no action of cleaning and activating a liquid phase and a vapor phase.SOLUTION: The inside of the polyvinyl chloride and metal pipe is coated with a coal layer having a thickness of 0.05 to 2 mm, and a liquid phase and a vapor phase moving at the inside of the pipe are made the similar state of moving at the inside of the layer of the coal and are cleaned and activated.

Description

  The present invention relates to a product that purifies and activates a liquid phase and a gas phase.

  Charcoal has a strong catalytic action and has recently been found to purify liquid and gas phases.

  On the other hand, the inventor has developed and possessed a technique capable of liquefying charcoal and activated carbon at low cost and applying it to various objects to obtain a coal layer having a charcoal content of 60% or more. In the present invention, the charcoal and the charcoal layer are either or both of charcoal and activated carbon, charcoal is a carbide of plant raw material, and the activated carbon is for liquid phase and gas phase.

  Therefore, the inventor invented a vinyl chloride pipe and a metal pipe in which the inside of the vinyl chloride pipe and the metal pipe is covered with charcoal so that the conventional material can be used and the liquid phase and the gas phase can be purified and activated. The metal pipe referred to in the present invention is a stainless steel pipe and an iron pipe.

As in patent application 2000-346562, bamboo charcoal is mixed in a proportion of 1 to 45% by weight to a cement component mainly composed of alumina cement and active silica, and is kneaded with water to be applied as sprayed concrete. There are some which purify the water of the river formed by applying a concrete layer containing charcoal to the river dam block surface.

As described in Patent Application 2000-357171, a network-like inclusion made of a biodegradable resin is filled with plant crushed material and plant charcoal, and is designed to grow and grow animals and plants. There are waterside restoration and restoration materials that promote purification and restore and preserve the waterside landscape.

There are some which purify lake water and the like by making a charcoal layer unit and moving it as in Japanese Patent Application No. 6-130045.

The patent application 2003-120029 is provided with a cylindrical outer surface, a cylindrical inner surface provided inward with a gap between the outer surface and the outer surface and the inner surface. A cylindrical container having two end faces closing the gap with the side face and containing a space with a ring-shaped cross section defined by the outer face, the inner face and both end faces is filled with granular activated carbon or catalyst. There are air purification devices, which are activated carbon filters and catalytic filters, respectively.

  Patent application 2008-62444 can achieve space saving while ensuring excellent purification efficiency, and further, hygroscopic, oil adsorbing and hydrophilic gas adsorbing that can be easily maintained and can reduce maintenance costs There is a kitchen air purification apparatus comprising an inorganic porous filter having a property and a deodorizing filter having a hydrophobic gas adsorption property.

  In order to purify water and air, an extra process such as a filter is generally provided. Activated carbon and charcoal have been used mainly as consumables to adsorb organic substances that inhibit the environment.

  Thus, the inside is covered with one of the charcoal layer, the activated carbon layer, the charcoal and activated carbon mixed layer, that is, the charcoal layer, and the water conduit and the passage having the function of purifying the liquid phase and gas phase mainly by the catalytic effect. There was no trachea.

  In order to purify the liquid phase and the gas phase, it is necessary to go through various processing steps, and there is a problem in that it requires costs related to consumables and energy costs and places a burden on the environment.

  Most of water conduits and vent pipes use vinyl chloride pipes and metal pipes from the viewpoint of durability and cost. If the liquid phase and gas phase can be purified and activated only by moving through these pipes, it is not necessary to provide a purification step as in the prior art, and the air and water supply / drainage can be purified and activated at low cost.

  Conventionally, activated carbon has a saturation as an adsorption limit because of the concept of adsorbing harmful substances. For example, a water purifier is a mechanism that periodically replaces an activated carbon layer that is a water purification unit. However, in recent years, the function as a catalyst has been clarified, and it is considered that a small amount of harmful substances decompose and do not saturate. Activated water is widely used in water purifiers to activate water. However, if an activated carbon layer is provided in the water conduit, an activated carbon layer with a larger area that surpasses the water purifier can be formed, so a water purifier is not required. .

  An air purification filter or the like inhibits ventilation, but if there is a coal layer in the ventilation pipe, it can be purified without inhibiting ventilation.

Means to solve the problem

  As one of materials for purifying and active liquid phase and gas phase, there are activated carbon and charcoal. Activated carbon is widely used as a catalyst and a catalyst carrier, and it is considered that the presence of radicals and surface functional groups present in activated carbon and the function of activated carbon itself as an electron transfer catalyst contribute to the expression of its function. The catalytic function of the activated carbon itself includes oxidation reduction, halogenation, dehalogenation, dehydrogenation, decomposition, isomerization, polymerization and the like, and many examples have been reported as supports. Such an effect is also expected to exist in charcoal. In addition, selective adsorption or catalytic action shows extremely strong temperature dependence.

  It has recently been clarified that charcoal obtained by carbonizing wood at 600 ° C. has a function of detoxifying NOx by changing it to 85 to 98% nitrogen (N 2) and 2 to 15% nitrogen monoxide (NO). By passing nitrogen dioxide (NO2) at a flow rate of 100 ml / min and 100-600 ppm through 0.5 g of cedar charcoal powder, the charcoal temperature changes to 85-98% nitrogen (N2) by charcoal at 600 ° C and 2 There is a significant NOx detoxification function, producing small amounts of carbon monoxide (CO) and nitrous oxide (N2O) in addition to that to -15%-nitric oxide (NO).

  NO2 is condensed in contact with the pores of charcoal and highly activated, and then dimerized, and immediately reduced by the strong reducing action of charcoal to be converted into dimerized NO, which is further reduced to be converted to N2. There is CO production and release, and at the same time, it is predicted that unreduced NO will also be released. This function is reduced to 1/3 to 1/5 for 800 to 1500 ° C. carbonized charcoal.

  Changes in the chemical structure and pore structure of the surface during the carbonization process are expected to act synergistically in the purification and control of the gas phase environment. For example, the performance of charcoal that adsorbs formaldehydes, ketones and alcohols increases as the carbonization temperature increases, and a selective high adsorption behavior is observed at 1000 to 1200 ° C.

  This performance is superior to that of three types of commercially available activated carbon. When 500 to 900 ppm of formaldehyde is passed through 0.5 g of 1000 ° C. charcoal powder at 100 ml / min, there is no outflow of formaldehyde, methyl alcohol and carbon monoxide. Is detected.

  This is a possibility of decomposition of formaldehyde, and not only simple adsorption but also the influence of the chemical action or catalytic action of the charcoal surface layer is expected.

  The catalytic function is presumed to be manifested by the chemical structure and pore structure of the surface. In order to use such a catalytic function widely, if the inner surface of the vinyl chloride pipe is covered with a charcoal mixture having a different carbonization temperature, a mixed activated carbon, or a mixture thereof, the liquid phase or gas can be transferred in the process of moving inside the pipe. The phase is efficiently purified and activated.

  In this way, charcoal exhibits various functions depending on the carbonization temperature. Therefore, when a mixture of several types having different carbonization temperatures is used, the charcoal has a wide range of purification activity functions. Moreover, what mixed activated carbon may be used, and activated carbon independent use may be sufficient.

  Water has the property of being activated by flow and becomes polluted after a certain time when the flow is slow. It is speculated that what is generally said to be delicious water is water that flows in igneous rocks, and changes in the molecular level occur under the influence of igneous rocks that emit far-infrared rays.

  Charcoal has better far-infrared radiation characteristics than igneous rocks such as bakuhanite and black silica.

  The porous nature of charcoal is suitable for microbial dwellers, creating a microflora suitable for the substance to be treated, and suitable for wastewater purification treatment. Charcoal, especially fast growing trees such as cedar and pine, has large pores and is suitable for microbial inhabitants.

  The charcoal has a different distribution of pores depending on the type of trees and their carbonization temperature, such as deciduous trees such as Kunugi and Quercus, laurel trees such as Aragasi and Ubamegashi, conifers such as cedar, pine, and firewood, bamboos, etc. Charcoal refers to all plant-derived charcoal, including bamboo.

  Conventionally, for example, it has been considered that the humidity control action by charcoal is proportional to the volume and weight of charcoal. However, our experimental results show that, for example, the water evaporation promoting action is proportional to the surface area regardless of the weight of charcoal used. Thus, it is speculated that many phenomena such as catalysis are related to the surface area of charcoal.

  If the inside of the water conduit and the ventilation pipe is covered with a coal layer, a coal layer having a large surface area can be formed, and a large amount of air and water can be purified.

  Since water and air moving in the conduit and vent pipe are always in contact with the coal bed, harmful substances are adsorbed and decomposed by the charcoal adsorption and catalysis and become active as they are purified. It turns into fresh air. In addition, contaminants that cannot be adsorbed and decomposed are decomposed and purified by microorganisms that live in the charcoal.

The invention's effect

  The present invention effectively utilizes the vast space inside the existing pipe for the purification activity of the liquid phase and the gas phase, and is simply provided with a coal bed inside the vinyl chloride pipe or metal pipe, at low cost. is there. Moreover, since it is not necessary to change the conventional construction method and process, there is no cost increase related to construction. And the liquid phase and the gaseous phase which moved in the pipe are purified and activated in the same way as when moving a huge coal layer.

These are sectional drawings of the vinyl chloride pipe which has a charcoal layer in the whole inside surface of the present invention.

FIG. 2 is a schematic perspective view of a vinyl chloride pipe having a charcoal layer on the entire inner surface according to the present invention.

FIG. 2 is a schematic perspective view of a vinyl chloride pipe having a charcoal layer on the inner side of the present invention excluding a part of the end.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a sectional view of a vinyl chloride pipe having a charcoal layer inside the present invention. The inner side is covered with a charcoal layer, and the moving liquid phase and gas phase are always in contact with the charcoal layer, so that they are purified and activated under the influence of the catalytic action of charcoal.

  The method of providing the coal layer is to rotate the pipe while pouring the liquefied coal into the vinyl chloride pipe or metal pipe, apply the liquefied coal to the desired thickness evenly throughout the inside, and then naturally dry or by blowing, hot air or electromagnetic waves Performed by forced drying. At this time, the thickness of the coal layer can be adjusted by the rotation speed and the viscosity of the liquefied coal. In addition, if a tape or the like is applied and peeled off after application, a portion without a charcoal layer can be easily provided.

  In this way, the entire inside is usually covered with a coal layer, but a portion without a coal layer can also be provided.

  Next, the manufacturing method and structure of a vinyl chloride pipe having a charcoal layer inside in the present invention will be specifically described.

  The cedar is carbonized at 650 ° C. and processed to a particle size of 0.1 mm to obtain powdered charcoal. The powdered charcoal, ethylene vinyl acetate adhesive, and water are mixed at a weight ratio of 1: 1: 0.2 to obtain liquefied charcoal 1.

  The liquefied charcoal 1 is poured into the inside of the vinyl chloride pipe, applied to a thickness of 0.5 mm while rotating the vinyl chloride pipe, and then naturally dried while continuing to rotate. The surface is dried in 30 minutes to 1 hour, and the liquefied charcoal does not move. After drying, a charcoal layer with a thickness of 0.45 ± 0.03 mm and a charcoal ratio of about 67% is formed on the entire inside of the vinyl chloride pipe. The charcoal layer adheres firmly to the vinyl chloride pipe and does not peel off and is not soiled.

  In this embodiment, cedar is used as the powdered charcoal material, but any plant material such as kunugi, pine, firewood or bamboo may be used. It is desirable to use powdered charcoal mixed with charcoal having different carbonization temperatures.

  The adhesive used for the liquefied charcoal 1 is an ethylene vinyl acetate adhesive, which is a desirable adhesive, but may be an acrylic resin adhesive, a silicon rubber adhesive, a urethane resin adhesive, or an inorganic adhesive. May be used. Moreover, although the mixing ratio of powdered charcoal, ethylene vinyl acetate adhesive, and water may be changed, it is desirable not to reduce the ratio of charcoal. In addition to activated carbon, liquefied charcoal 1 may be used by mixing zeolite or mineral powder.

  Liquefied activated carbon 1 is prepared by mixing activated carbon Kuraray Chemical's liquid phase activated carbon KW with a particle size of 0.05 mm, ethylene vinyl acetate adhesive and water in a weight ratio of 1: 0.9: 0.1. obtain.

  The liquefied activated carbon 1 is poured into the inside of the vinyl chloride pipe, applied to a thickness of 0.3 mm while rotating the pipe, and then dried. After drying, an activated carbon layer having a thickness of 0.25 ± 0.03 mm and an activated carbon ratio of about 69% is formed, and a vinyl chloride pipe having an activated carbon layer on the entire inside is formed.

  The activated carbon used may be any kind of activated carbon such as liquid phase activated carbon, gas phase activated carbon, powdered activated carbon, or a mixture thereof. The adhesive used for the liquefied activated carbon 1 is an ethylene vinyl acetate adhesive, which is a desirable adhesive, but may be an acrylic resin adhesive, a silicon rubber adhesive, a urethane resin adhesive, or an inorganic adhesive. An adhesive may be used. Moreover, although the mixing ratio of activated carbon, ethylene vinyl acetate adhesive, and water may be changed, it is desirable not to reduce the activated carbon ratio. Further, zeolite or mineral powder may be mixed with the liquefied activated carbon 1 in addition to charcoal.

Mixed powder with a particle size of 0.1 mm obtained by mixing cedar charcoal carbonized at 650 ° C., Kunugi charcoal carbonized at 600 ° C., and Kuraray Chemical liquid phase activated carbon GWG in a weight ratio of 1: 1: 1. Charcoal, ethylene vinyl acetate adhesive, and water are mixed at a weight ratio of 1: 1: 0.2 to obtain liquefied mixed coal 1.

  The liquefied mixed coal 1 is poured into a vinyl chloride pipe, applied to a thickness of 0.5 mm while rotating the vinyl chloride pipe, and then dried. After drying, a mixed coal layer having a thickness of 0.45 ± 0.03 mm and a mixed coal ratio of about 67% is formed on the entire inside of the vinyl chloride pipe.

  The adhesive used for the liquefied mixed charcoal 1 is an ethylene vinyl acetate adhesive, which is a desirable adhesive, but may be an acrylic resin adhesive, a silicon rubber adhesive, a urethane resin adhesive, or an inorganic adhesive. An agent may be used. Moreover, although the mixing ratio of the liquefied mixed charcoal 1, ethylene vinyl acetate adhesive, and water may be changed, it is desirable not to decrease the mixed charcoal ratio. Further, the liquefied mixed coal 1 may be used by mixing zeolite, mineral powder, or the like.

  In this embodiment, cedar and kunugi are used as the powdered charcoal material, but plant materials such as pine, firewood, and bamboo may be used, and the carbonization temperature is preferably in the vicinity of 600 to 800 ° C. with many free electrons. It may be in the range of ˜1200 ° C.

  Water purification activity and air purification activity are possible without the need for extra equipment. In addition, the reservoir water and industrial wastewater such as moat water that does not flow can be purified and activated simply by circulating in the pipe, so that clean water can be obtained at low cost. Also, polluted exhaust and air can be purified and activated.

1. 1. Vinyl chloride pipe Charcoal bed

Claims (2)

  A pipe with a thickness of 0.05mm to 2mm covered with either a charcoal layer, an activated carbon layer, or a mixed layer of charcoal and activated charcoal, and a purification function for the gas phase and liquid phase. It is. The method of covering the inside of the vinyl chloride pipe or the metal pipe of claim 1 with any one of a charcoal layer, an activated carbon layer, a charcoal and activated carbon mixed layer, while pouring one of liquefied charcoal, liquefied activated carbon, and liquefied mixed coal into the pipe Then, the pipe is rotated and applied to the entire inside in a thickness range of 0.05 mm to 2 mm, and then is applied by natural drying or forced drying by a combination of air blowing, hot air, and electromagnetic waves.
At this time, the thickness of the coal layer is adjusted by the rotation speed and the viscosity of the liquefied charcoal.

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