JP5305771B2 - Water production system for washing lacquered wood products and water production method for washing lacquered wood products - Google Patents

Description

This invention is related to techniques for fabricating suitable water for cleaning lacquered wood with tap water.

  In the present invention, “washing” means not only the action of removing dirt, but also the action of maintaining hygienic conditions by suppressing the growth of bacteria and adhesion of dirt.

  Various devices have been proposed so far for reforming raw water such as tap water into water having a specific property. There are various types, such as a type that removes impurities and a type that uses an action such as a magnet or far infrared rays. The modified water is also called variously, such as reduced water, functional water, purified water, oxidized water, and active water.

  It can be fully understood that impurities are removed by filtration to make purified water, or mineral stone is used to make mineral water, but in many cases, the mechanism for water reforming is not clear.

  However, as a result of research by the applicant, it has been found that the properties of water can be surely changed by passing water through ceramic particles made of rock as a raw material, regardless of filtration or elution.

  Such a technique is disclosed in Patent Document 1 below.

  The technique disclosed in Patent Literature 1 relates to a ceramic-free active water device that is maintenance-free. This device includes a cylindrical main body container, a raw water inlet that is perforated in a lower part of the main body container, and raw water is ejected upward in the main body container, and an active water stream that is perforated in an upper part of the main body container. The ceramic container is provided with an outlet, ceramic particles filled in the main body container leaving a flow region, and a net-like body fixed in the vicinity of the raw water inlet and the active water outlet. 1/3 to 2/3 of the total volume is filled. The ceramic particles are obtained by using sedimentary rocks containing organic particles such as fine particles of tourmaline or mesolite as raw stones. They are spherical with a diameter of about 2 mm and a specific gravity of 1.3, and have a high surface hardness. , It is described as not having porosity.

  In addition, there are two types of devices. The inner diameter of the main body container in one apparatus is 87 mm and the height is 382 mm, the amount of treated water is 30 L / min, the inner diameter of the main body container in the other apparatus is 62 mm, and the height is 258 mm. While the amount of water is 15 L / min, the inner diameter of the pipe connected to the raw water inlet and the active water outlet is described as 20 mm in any apparatus.

  Some ceramic particles are disclosed in Patent Document 2 below.

  This is a ceramic active water material composed of a spherical sintered body of oxide-based ore powder containing silicon and aluminum as main components and containing alkali metal and / or alkaline earth metal. After that, it is obtained by sintering at a temperature of 1000 ° C. or higher. This sintered body is described as a hard ceramic sphere with a smooth surface and brown gloss.

  In either case of Patent Documents 1 and 2, ceramic particles are flowed in water, and the water is modified by collision or friction. In the cited document 2, it is described as a part of the water reforming mechanism that a charge is generated in a minute local area on the surface by flow collision.

  However, since this is a method of causing the ceramic particles to collide with each other, an appropriate amount of water supply and a filling amount of the ceramic particles are required.

  That is, in the apparatus of Patent Document 1, the amount of treated water is different in each apparatus having two types of main body containers into which water flows from a pipe having the same inner diameter. In a small device with an inner diameter of the main body container of 62 mm, the amount of treated water is set to 15 L / min, while in a large device with an inner diameter of the main body container of 87 mm, the amount of treated water is set to 30 L / min. ing. This is considered to be because in a large apparatus, the ratio of the inner diameter of the pipe to the inner diameter of the main body container is small. That is, in the case of an apparatus having an inner diameter of 87 mm, the ratio of the inner diameter of the pipe is lower than in the case of a small-sized apparatus, and thus it is considered that a larger amount of treated water is required.

  The filling amount of the ceramic particles is set to 1/3 to 2/3 so as to be maximized within the range in which the fluidity is not hindered.

  However, no matter how hard the ceramic particles are, if they continue to be impacted in water, they will eventually become brittle.

  Further, with regard to the modified water, Patent Document 1 states that “there is no slime or dirt on the bath or toilet, and that urinary stones have been peeled off” (paragraph number [0022]). Effects such as prevention of scale adhesion (paragraph number [0020]) are praised.

However, there has never been obtained water for cleaning (cleaning water) for removing dirt from lacquered wood products using ceramic particles.

  Incidentally, detergents, chemicals, solvents, and the like are generally used for cleaning for removing dirt on articles. This is because by using a detergent or the like, the dirt is satisfactorily decomposed and the dirt can be easily removed. The same applies to Buddha statues and lacquered ancient cultural properties. As such an example, there is a technique described in Patent Document 3 below. This is a method of cleaning Buddha statues and the like using a special detergent and solvent.

JP 2002-66575 A JP-A-7-39887 Japanese Patent No. 3437385

  However, since cleaning with a detergent uses its powerful cleaning power, there is a serious problem that the material of the substrate may be damaged. In particular, in the case of lacquered ancient cultural properties, even if the surface stains are removed, if the material of the substrate is damaged, it will hinder the preservation. As a result, long-term storage may be impossible.

  In particular, ancient cultural properties (for example, buildings including arts, crafts, joinery, etc. More specifically, Buddha statues, Buddhist altars, paintings, barrier paintings, decorative hardware, lacquered products, etc.) And it is something that will be inherited in the future, but it is not wiped out finely every day. For example, as seen in the wiping ceremony performed once a year, full-scale wiping takes a long period of time. It is done. On the other hand, incense sticks and candles are used in temples and are exposed to the smoke every day. For this reason, it is often attached in a state where dirt is accumulated. In addition, the material used for past repairs may change over time and become dirty, which may damage the appearance. Thus, it is difficult to remove stains and the like that have been stained over a long period of time by simply washing with ordinary tap water.

Accordingly, the present invention is primarily intended to make it possible to produce a water lacquered wood cleaning without impacting the ceramic particles.

As means for the lower end which forms a treatment tank having a large number of water passing holes on the lower end in the vertically long cylindrical shape, and a plurality of ceramic particles contained in the processing tank, a hemispherical shape provided under end of the treatment tank Circulating means for feeding raw water into an inlet formed to extend in the vertical direction to the curved surface portion of the lower end of the auxiliary tank, draining it from the outlet provided at the upper end of the treatment tank, and returning it to the inlet again The above ceramic particles are granulated by pulverizing rocks containing 6% or more of iron and 65% or more of silicon in terms of oxide as a whole rock composition and containing quartz, feldspar and mica as constituent minerals. and then fired at 1000 ° C. or more temperature after further re-fired ceramic particles are used at 500 ° C. to 1000 ° C. at a reducing atmosphere, the ceramic particles, 25% of the volume of the processing tank Housed in capacity of the lower, the inlet inner diameter is set to 20-25% of the value of the inner diameter of the treatment tank, float-settle to rise up due to the flow accompanying the inflow of raw water by the circulating means Ceramics A lacquered wood product washing water production device that makes contact between the particles and the raw water, a water receiving tank for storing water to be circulated in the lacquered wood product washing water production device, and a first feed between the bottom of the water receiving tank and the inlet. Connect with a water pipe, connect the outlet of the water production apparatus for washing lacquered wood products and the upper part of the water receiving tank with a second water pipe, and a branch pipe for taking out water for washing lacquered wood products into the first water pipe. It is a water production system for washing lacquered wood products provided with a water supply section for supplying tap water to the water receiving tank .

Lower portion containing raw water toward the processing tank from the inlet of the by Maiagara ceramic particles filled in the treatment tank, slide into increased. The ceramic particles soared will be suspended by the water flow and will gradually settle. The rising water is discharged from the outlet at the upper end while being subjected to flow restrictions such as subsequent water flow and restrictions due to ceramic particles that float and settle. Water discharged from the outlet is circulated is returned to the inlet of the lower end portion is performed.

  Since there is no forced collision of the ceramic particles, damage between the ceramic particles can be prevented.

  Moreover, the ceramic particles are reduced in hardness and improved by re-baking in a reducing atmosphere after baking at 1000 ° C. or higher. As a result, the durability of the ceramic particles can be improved, and a unique effect on the raw water can be seen.

The lacquered wooden washing water obtained by the device, such as compared to the pre-treatment the redox potential is lowered, modified as a result of the processing was observed.

The amount of the ceramic particles accommodated is set to 25% or less of the volume of the treatment tank having a vertically long cylindrical shape, so that a state in which there are no ceramic particles staying at the bottom of the treatment tank can be obtained and contained. Floating / sedimenting of the whole particle can be performed well.

Further, since the inner diameter of the inlet is set to a value of 20 to 25% of the inner diameter of the treatment tank , the change of the inner diameter reduces the inflow speed of the water. It spreads to the surface, acts on all ceramic particles, and ensures the function of discharging water while performing good floating and sedimentation.

Another means is to smash and granulate rocks containing 6% or more of iron and 65% or more of silicon in terms of oxide as a whole rock composition and containing quartz, feldspar and mica as constituent minerals and then granulating at 1000 ° C. Formed directly under the hemispherical bottom auxiliary tank in a vertically long cylindrical processing tank containing a large number of ceramic particles fired at the above temperature and refired at 500 ° C. to 1000 ° C. in a reducing atmosphere. it inflows raw water from the inlet was, performed contact with the raw water Metropolitan ceramic particles suspended, settle to rise up by the flow caused by the inflow, producing different lacquered wood wash water of nature and raw water and sends該漆painted wood wash water in water receiving tank to accumulate tap water, the water in the receiving aquarium is refluxed through the inlet of the treatment tank, lacquered wood cleaning water production method for repeatedly circulating A.

Etc. Such lacquered wood cleaning water production system and lacquered wood wash water produced by the method, oxidation-reduction potential and surface tension as compared with tap water, which is a raw water decreases, modified as a result of processing the quality is made, becomes a new lacquered wooden products for cleaning water. Moreover, since the part (for example, piping, a tank, etc.) through which this water passes always contacts with this water, it receives the effect | action of water, does not adhere dirt easily, and it is easy to maintain a clean state.

As described above, according to the present invention, the action of ceramic particles can be obtained without collision between ceramic particles, and water suitable for washing lacquered wood products can be produced.

Also, lacquered wood product cleaning water is different from raw water, such as reduced redox potential and surface tension compared to tap water which is tap water. It was effective in removing dirt. In particular, as ancient cultural assets which are lacquered in Temple, soot incense, which candles such as oil ingrained over an extended period of time, but was difficult to fall in the tap water, lacquered wood wash water of the present invention As a result, it was observed that the removal rate of dirt was clearly higher than when tap water was used. Unlike the case where a detergent or the like is used, the material of the base material is not damaged.

An embodiment for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is an explanatory diagram of a water treatment system 21 using a water production apparatus 11. As shown in this figure, the water production apparatus 11 is connected to a water receiving tank 22, and uses water (raw water) in the water receiving tank 22. Processed to produce water.

  That is, between the water receiving tank 22 and the water producing apparatus 11, the first water pipe 23 that sends the water in the water receiving tank 22 to the water producing apparatus 11 and the water that has passed through the water producing apparatus 11 are sent to the water receiving tank 22. And a second water pipe 24. A branch pipe 25 for sending water to a necessary portion is provided at a middle position of the first water supply pipe 23 together with a branch valve 26, and water is supplied to the water receiving tank 22 on the water receiving tank 22. A water supply unit 27 is provided. The end of the first water pipe 23 on the water receiving tank 22 side, the portion closer to the water production apparatus 11 than the branch valve 26, and the end of the second water pipe 24 on the water production apparatus 11 side are respectively Valves 28, 29 and 30 are provided for switching and adjusting the flow rate.

  The water production apparatus 11 includes a pump 12 as a circulation means connected to the first water supply pipe 23, a water supply pipe 14 that supplies water from the pump 12 to the apparatus main body 13, the pump 12 and each of the valves 26, 28 and 29 and a control device 15 that performs drive control of the water supply unit 27.

The apparatus main body 13 is configured as shown in FIG.
That is, the vertically long processing tank 31, the hemispherical lower end auxiliary tank 32 attached to the lower end of the processing tank 31, the hemispherical upper end auxiliary tank 33 attached to the upper end of the processing tank 31, and the processing tank 31. And the lower auxiliary tank 32, and the upper and lower partition plates 34, 34 attached between the processing tank 31 and the upper processing tank 33.

  The treatment tank 31 has flanges 31a and 31a at both upper and lower ends, and the lower end auxiliary tank 32 and the upper end auxiliary tank 33 are fixed through the flange 31a. The height H1 of the processing tank is set to a value of about 5 to 6 times or more than the inner diameter D1 of the processing tank.

  The lower end processing tank 32 and the upper end processing tank 33 have connection ports 32a and 33a having the same inner diameter as the openings at the upper and lower ends of the processing tank 31 at the maximum inner diameter. Flange 32b, 32b of the same diameter as flange 31a is formed.

And the short cylinder part of the short cylinder shape is formed in the other side of the connection ports 32a and 33a. The short cylinder part of the lower end auxiliary tank 32 is an inflow port 32c, and the short cylinder part of the upper end auxiliary tank 33 is an outflow port 33c. The inner diameters D2 and D3 of the inflow port 32c and the outflow port 33c are the same diameter, and are set to a value of 20 to 25% with respect to the inner diameter D1 of the processing tank 31.

  Further, step portions 32d and 33d are formed in the connection ports 32a and 33a, and are fixed so as to sandwich the outer peripheral edge of the partition plate 34.

  The partition plate 34 is a plate that partitions the treatment tank 31, the lower end auxiliary tank 32, and the upper end auxiliary tank 33 in a state where water can be circulated, and is made of a punching metal having a large number of water passage holes 34a. Although it may be composed of a mesh-like mesh body, punching metal is more suitable in terms of attachment and durability.

  The water passage holes 34 a are smaller than the ceramic particles 35... Accommodated in the treatment tank 31 and are formed uniformly throughout.

  The ceramic particles 35 are formed by pulverizing crushed rock into a spherical shape and calcined, and the rock contains 6% or more of iron and 65% or more of silicon in terms of oxide as the total rock composition. Is used. The rock contains quartz, feldspar and mica as constituent minerals.

  The above pulverization is performed so that the average particle size is, for example, about 0.5 μm to 10 μm, and kneaded by adding an organic solvent such as water or ethanol so that the average particle size is about 0.5 mm to 10 mm. To granulate.

  The firing is performed in two stages. The first stage primary firing is performed at a high temperature of 1000 ° C. or higher.

  The next second stage firing is reduction firing. That is, the primary firing ceramic particles after the primary firing are fired at a temperature of 500 to 1000 ° C. for 15 minutes or more in a reducing atmosphere. Each component including iron is reduced by refiring (reducing refiring) with a reducing flame. In addition, when the baking was performed at a temperature lower than 500 ° C., no change was observed in the appearance, and when the temperature was higher than 1000 ° C., the material was burnt black and was clearly fragile in appearance.

  Specifically, a rock containing raw materials as shown in FIG. 3 was used.

  FIG. 3 shows the result of fluorescent X-ray analysis of rock. As shown in this table, the total rock composition contains 6.42% iron and 68.3% silicon in terms of oxide. It is a rock with a relatively high content of both iron and silicon.

  Similarly, the primary fired ceramic particles obtained by granulating rocks having such a composition and subjected to primary firing were similarly subjected to a fluorescent X-ray analysis, and the results shown in FIG. 4 were obtained.

  FIG. 5 shows the analysis results for the ceramic particles after reduction and refiring. In addition, the conditions of the reduction refiring were 30 minutes at 750 ° C.

  Further, when the hardness of the primary fired ceramic particles and the ceramic particles after reduction and refire were measured, the results shown in FIG. 6 were obtained. For the hardness, Vickers hardness was used, and five randomly extracted particles were measured to obtain an average value.

  As shown in the table of FIG. 6, the average hardness of the primary fired ceramic particles is 918, whereas the average hardness of the ceramic particles after reduction refire is 965, and the hardness is improved. Recognize.

FIG. 7A is an enlarged photograph of the surface of the primary fired ceramic particles, and FIG. 7B is an enlarged photograph of the surface of the ceramic particles that have been reduced and refired. As can be seen in these photographs, each ceramic particles are non-porous, ceramic particles 35 after the reduction re-firing, by the re-firing in a reducing atmosphere, it is slightly darker and sink is red only Recognize. Also, the denseness increases and it appears to be tightened. In other words, the surface irregularities were reduced and smoothed compared with those before reduction refiring. It seemed that it was not only hard but also improved toughness.

  FIG. 8 is a photograph showing a cross section of the ceramic particles 35 after reduction refiring, and as seen in this photograph, the ceramic particles 35 after reduction refiring are non-porous, like a hard stone with a dense structure. You can see that In the photograph, the circular layered portion seen around the ceramic particles 35 after reduction and re-firing is a portion of the slide glass on which the sample is attached, and is not the ceramic particles 35 after reduction and re-firing.

  In order to investigate how the ceramic particles after such reduction and re-firing differ in action from the primary firing ceramic particles before reduction and re-firing, the redox potential often used as the chemical property of water We investigated how the surface tension often used as the physical property of water changes just by immersing (contacting) ceramic particles in water.

  FIG. 9A shows the experimental results regarding the redox potential. In the experiment, tap water in Kyoto city was used as raw water, ceramic particles were immersed, and the oxidation-reduction potential (ORP) immediately after immersion (immersion) and the oxidation-reduction potential one hour after the immersion were measured.

  As shown in the table of FIG. 9A, immediately after the immersion, tap water was 586 mV, whereas in the case of primary fired ceramic particles, it decreased to 452 mV. On the other hand, in the case of ceramic particles after reduction and refiring, the voltage dropped to 364 mV. The same applies to the case after 1 hour, while the tap water is 613 mV, whereas in the case of the primary fired ceramic particles, it decreases to 428 mV, and in the case of the ceramic particles after reduction and refire, it is even lower. It was 329 mV, lower than that immediately after flooding.

  FIG. 9B shows the experimental results regarding the surface tension. In the experiment, tap water in Kyoto city was used as raw water, and ceramic particles were soaked immediately before soaking (immediately before soaking), and after 15 minutes, 30 minutes, 1 hour and 2 hours after soaking. The surface tension was measured.

  As is apparent from the table of FIG. 9B, it can be seen that the surface tension of the ceramic particles after reduction refiring can be reduced more than that of the primary calcined ceramic particles.

  As is clear from the experiments as described above, the ceramic particles after reduction and re-fired are simply immersed (contacted) than when the primary fired ceramic particles before reduction and re-fire are used. It turns out that the effect is high.

In order to investigate the nature of the water when it was circulated, a small device was manufactured and tested. The apparatus used for the experiment has the same configuration as the water production apparatus 11 described above, and 10 liters of water was placed in the water receiving tank. The height H1 of the treatment tank 31 of the water production apparatus 11 is 200 mm, the inner diameter is 45 mm, and the inner diameters of the inlet and outlet are 10 mm. Ceramic particles 35 having a diameter of about 2 mm and a specific gravity of 2.5 to 3.5 g / cm ³ were used, and 115 g were accommodated so that the volume of the processing tank 31 was about 1/5 (H2). The circulation capacity of the pump 12 is 9 L / min.

  When water is circulated using such a water production apparatus 11, as shown in FIG. 10, when the contained ceramic particles 35 are swung up by the pushed-up water flow, the floating and descending state is slowly repeated. was gotten. That is, the water entering the processing tank 31 from the inlet 32c of the lower end auxiliary tank 32 temporarily decreases in speed due to the change in the inner diameter, the water flow spreads out as a whole, and the water flows in the entire range of the partition plate 34. Ascending can be seen from the movement of the ceramic particles 35. Then, the ceramic particles 35 that have been raised in each part gradually move down so as to diffuse and float, and then gradually fall and rise again.

  Such movement of the ceramic particles 35 occurred in the entire ceramic particles 35 accommodated, and the entire ceramic particles 35 were slowly and uniformly stirred.

  Then, the rising water is discharged from the outlet 33c at the upper end while being restricted by the subsequent water flow, the restriction by the suspended and settled ceramic particles 35, and the restriction by the tapered shape by the upper end auxiliary tank 33, and again. Then, the refrigerant was returned to the lower inlet 32c and circulated. In the circulating state, there was no intense collision of the ceramic particles 35, and the whole was moving slowly.

  When the redox potential of the circulating water and the tap water thus measured was measured, the result shown in FIG. 11 was obtained. The raw water of the circulating water and the tap water are the same, and the tap water in Kyoto city was used. Further, the circulation passes through the water production apparatus 11 by 3 to 4 cycles.

  Similarly, when the surface tension was measured, the results shown in FIG. 12 were obtained. “One pass” in FIG. 12 means to pass through the water production apparatus 11 once.

  As described above, the circulating water has a unique property that both the redox potential and the surface tension are lower than those of tap water. From the low redox potential, it can be seen that it has a reducing power, and from the low surface tension, it can be seen that the penetrating power is high.

  In addition, since the effect of surface tension is higher than that in the case of one-pass circulating water (see FIG. 12), it is considered that the reforming effect is high when the circulation number is large.

  The following experiment shows that the redox potential of the circulating water is low.

  This experiment is an experiment to see how rust is generated and changed in the water. That is, as shown in FIG. 13, two iron nails and water were put in a transparent sealed container, left at room temperature, and observed for 58 days.

  Three containers were prepared and filled with circulating water, one-pass water, and tap water. The circulating water is the same as the above circulating water from which the results of FIGS. 11 and 12 were obtained. Further, “one-passed water” is water that has passed through the water production apparatus 11 once, and in FIG. 13, “sage tap water” is written on the surface of the container. The raw water of “circulated water” and “one-passed water” and the above-mentioned tap water are the same, and are tap water in Kyoto city.

  As a result of observation, the results shown in the photographs of FIG. 13 ((a) 2nd day, (b) 7th day, (c) 21st day, (d) 58th day) were obtained. In FIG. 13, “circulated water”, “sage tap water”, and “tap water” are shown in order from the left.

  That is, on the second day, the same red rust was observed in all the water, but on the seventh day, the rust color of the iron nail changed to black in the “circulating water”. At this time, there was no change in other water iron nails. And on the 21st day, the rust of the iron nails in “Sage tap water” changed to black as well as the iron nails in “circulating water”. At this time, however, the rust of the iron nails in “tap water” remained red. Furthermore, on the 58th day, the rust of the iron nail in the circulating water and the one-pass water has almost changed to black, but the rust of the iron nail in the tap water remains red. In addition, the iron nails in the “circulation water” that has changed to black and the iron nails in the “sage tap water” are the iron nails in the “circulation water”. It is darker black than the iron nails inside.

Since red rust FeO (OH) changes to black rust Fe ₃ O ₄ in this way, “circulating water” and “sage tap water” have reducing power, and “circulating water” is more “sage tap water”. It can be seen that the reducing power is stronger than.

  Further, when the quality of the circulating water and raw water was examined, the results shown in the table of FIG. 14 were obtained.

  As shown in this table, no detection was observed for bacteria in circulating water, there was no abnormality in taste and odor, and no major changes were observed in pH value, etc., but chromaticity and turbidity A big change was seen.

  When such circulating water was used for cleaning lacquer products, it was found that it was more effective in removing dirt than when tap water was used.

  As an example, an example of cleaning a lacquered ceiling beam (an ancient cultural property) is given. This ceiling beam was from Mikagedo of Higashi Honganji Temple in Kyoto, and the entire surface was clouded white as shown in the photograph in FIG. This stain appears to have been mainly deposited with incense soot and candle oil.

  The stain was wet with tap water and wiped with a towel that had been wrung, but the stain was not removed.

  However, when the circulating water was dipped in a towel and wiped in the same manner, a white film-like stain was removed as shown in the photograph of FIG. And a glossy, glossy lacquer surface appeared, and the ceiling beam began to shine like a new one.

  Similarly, the photograph in FIG. 16 is the ceiling surface inside the Higashi Honganji temple. Also on this ceiling surface, as shown in the photograph of FIG. 16A, both the hardware and the lacquer surface were darkened by soot.

  When wiping with tap water in the same manner as above, the dirt did not drop, but when wiping with circulating water in the same way, the brightness of the gold leaf revived as shown in the photograph of FIG. It was.

  As described above, when circulating water is used, dirt is removed. Moreover, since a small amount of water is sufficient, it is particularly suitable for cleaning lacquer products. In other words, lacquer products are resistant to acids and alkalis but weak to water. And especially in the case of ancient cultural properties, the surface may be damaged. If water is applied in this state, water enters from the damaged part and soaks into the base wood, which may cause further damage to the lacquer surface. For this reason, it is very meaningful that the amount of water used is small.

  As another example, an example of cleaning a barrier painting (ancient cultural property) is given. The photograph in FIG. 17 is the one owned by Mikagedo in Higashi Honganji Temple in Kyoto, and was restored in 1958 (Showa 33). In this restoration, peeling is prevented by PVA (polyvinyl alcohol). The technology and problems for preventing such peeling are described in detail in Kiyoji Higuchi, “Problems of Stripping Treatment with a Synthetic Resin for Barrier Painting” (Preservation Science No. 12).

  At present, 50 years after the restoration, this anti-peeling treatment has caused a stain such as dripping due to deterioration and discoloration of PVA as shown in FIG.

  When this soil mainly composed of PVA was wiped by immersing tap water in a cotton swab, the soil did not come off. However, when the circulating water was wiped by immersing it in the tip of a cotton swab, as shown in FIG. It fell more easily when heated circulating water was used than when circulating water at room temperature was used. This seems to be because PVA is soluble in hot water.

  Cultural properties such as barrier paintings vary in material, technique and damage. However, the basic of restoration is not to damage the substrate. For that purpose, it is preferable to use water instead of detergent as described above, and to wash with as little water as possible.

  When the circulating water was used, as clearly shown in the photograph of FIG. 17, the stain produced by the alteration of the resin for preventing the peeling was completely removed. For this reason, in the restoration of cultural properties, “currently conservative restoration” (restoration that makes it possible to preserve for a longer period of time rather than neatly) is desired, but this demand is met.

  As shown in the photographs of FIGS. 15, 16, and 17, it greatly contributed to the cleansing of precious cultural assets.

  Further, as described above, the chromaticity and turbidity of the circulating water are lower than those of the raw water (see FIG. 14). This indicates that the impurities in the water have been reduced by passing through the water production apparatus 11, and it can be seen that the raw water originally not suitable for washing can be changed to water suitable for washing. Moreover, since chromaticity and turbidity are falling, it is suitable as water used especially for a rinse.

Next, in order to see the effect on bacteria, the following experiment was conducted.
One of them prepared water containing general bacteria in a water receiving tank, and examined how the water quality changed after the water production apparatus 11 was operated.

  Water containing general bacteria was produced by a water receiving tank (portion for storing rainwater) used to use rainwater. When the water quality in the water receiving tank was examined, as shown in “Measured value of water before operation” in FIG. 18, the measured value of general bacteria was 38000 CFU / mL.

  An inlet pipe (not shown) for injecting tap water was connected to the water receiving tank, and a circulation path (not shown) was formed for guiding the water in the water receiving tank to the water production apparatus 11 and returning it to the water receiving tank.

  And when the water in a water-receiving tank was used for appropriate uses, such as sprinkling, tap water was replenished. The water production equipment was in operation all the time.

  After about two months in this way, the water quality in the water receiving tank was examined. As shown in “Measured value of water after operation” in FIG. 18, the general bacteria amounted to 7 CFU / mL. It decreased significantly.

  Since water containing general bacteria is used and tap water is replenished, it is not only due to the effect of the water production apparatus 11, but since the rainwater is not exhausted and the water receiving tank is not washed cleanly, It can be assumed that this is an effect. This can be inferred from the fact that the chromaticity and turbidity are higher than before operation. That is, the dirt adhering to the water receiving tank is peeled off by the high osmotic force of the circulating water that has passed through the water production apparatus 11, and is decomposed to increase the chromaticity and turbidity. This is because the general bacteria that had been / mL decreased to 7 CFU / mL in over two months.

  Although there is no comparative example, it cannot be determined, but it can be estimated that it has antibacterial power at least against general bacteria.

  The other one of the experiments was performed using bathtub water. That is, the apparatus main body 13 is attached to an existing system having a circulation means for circulating the bathtub water (raw water made of hot spring water) installed in the inn, a filtration device for filtering the bathtub water, and the like. Inspected for bathtub water in the bathtub after installation.

  As a result, the results as shown in the table of FIG. 19 were obtained. That is, in a state before the apparatus main body 13 was attached, 120 CFU / 100 mL of Legionella spp. (Bacteria count) higher than the reference value was detected. On the other hand, Legionella spp. Were not detected when the apparatus main body 13 was attached and circulated 3 to 4 times.

  Thus, when the apparatus main body 13 is attached, it can be seen that the number of Legionella bacteria in the bath water is reduced. Since the apparatus main body 13 does not use chemicals such as chlorine, it does not have the effect of directly sterilizing Legionella spp. From this, it is considered that the circulating water that has passed through the apparatus main body 13 has an effect of removing biofilms such as pipes that cause generation and propagation of fungi, thereby suppressing generation and propagation of fungi.

  Furthermore, if the apparatus main body 13 is used, an appropriate water treatment system as illustrated in FIG. 1 can be configured. Since the apparatus main body 13 does not use any drug, when the raw water is water suitable for drinking, it can be used not only as washing water but also as drinking water. Therefore, it can be used not only for industrial use and industrial use but also for general household use, and its water use can be selected in various ways. In addition, since an antibacterial effect can be obtained without using a drug, the amount of drug used can be reduced in a bathtub facility or the like. This not only leads to a reduction in running costs, but also reduces the amount of chemicals in the wastewater, leading to a reduction in the load on the surrounding environment.

In the correspondence between the configuration of the present invention and the configuration of the one aspect described above,
This lacquered wooden wash water production equipment of the invention corresponds to the water production apparatus 1 1 above,
Similarly,
The circulation means corresponds to the pump 12,
Ceramic particles correspond to ceramic particles and ceramic particles after reduction refiring,
The water for cleaning lacquered wood products corresponds to the circulating water ,
The present invention is not limited to the above-described configuration, and other forms can be adopted.

  For example, the partition plate 34 at the upper end of the processing tank 21 can be omitted. This is because it is not necessary to make the ceramic particles collide, and therefore it is not necessary to prepare for the pop-out of the ceramic particles.

  Further, for example, a branch pipe for sending water to a required portion can be appropriately configured according to a required situation, for example, in a second water pipe.

The block diagram of the water treatment system using a water manufacturing apparatus. Sectional drawing of the apparatus main body of a water manufacturing apparatus. The table | surface which shows the component analysis result of the rock which is a raw material. The table | surface which shows the component analysis result of a primary firing ceramic particle. The table | surface which shows the component analysis result of the ceramic particle after reduction | restoration rebaking. Measurement results indicating the hardness of ceramic particles. An enlarged photograph of the surface of the primary fired ceramic particles and the surface of the reduced and refired ceramic particles. The photograph which shows the cross section of the ceramic particle after reduction | restoration rebaking. The table | surface which shows the measurement result of the oxidation-reduction potential and surface tension of the water which is not circulated. Sectional drawing of an action state. The table | surface which shows the measurement result of the oxidation-reduction potential of circulating water. The table | surface which shows the measurement result of the surface tension of circulating water. Photo of experimental results showing the effect of circulating water on rust. The table | surface which shows the comparison of the water quality test result of circulating water and raw | natural water. A photograph showing the wiping effect. A photograph showing the wiping effect. A photograph showing the wiping effect. The table | surface which shows the water quality test result which presumes the effect with respect to general bacteria. The table | surface which shows the comparison of the water quality test result of the bathtub water by the presence or absence of a water manufacturing apparatus.

11 ... Water production equipment (cleaning water production equipment)
DESCRIPTION OF SYMBOLS 13 ... Apparatus main body 31 ... Processing tank 32 ... Lower end auxiliary tank 32c ... Inlet 33c ... Outlet 34 ... Partition plate 34a ... Water passage hole 35 ... Ceramic particle (ceramic particle after reduction re-baking)

Claims (3)

A treatment tank having a vertically long cylindrical shape and a large number of water holes at the lower end ;
A number of ceramic particles contained in the treatment tank;
With feeding the raw water to the treatment tank formed inlet to the curved surface portion of the lower ends of the auxiliary tank which forms a hemispherical shape provided on the lower end extending in the vertical direction, the flow provided at the upper portion of the processing tank A circulation means for draining from the outlet and returning to the inlet again,
The ceramic particles have a total rock composition containing 6% or more of iron and 65% or more of iron in terms of oxides, and after crushing and granulating rocks containing quartz, feldspar and mica as constituent minerals, Ceramic particles fired at a temperature of ℃ or higher and refired at 500 to 1000 ℃ in a reducing atmosphere are used.
The ceramic particles are accommodated in a capacity of 25% or less of the volume of the treatment tank,
The inner diameter of the inlet is set to a value of 20-25% of the inner diameter of the treatment tank,
A water production device for washing lacquered wood products that makes contact with the ceramic particles floating and settling by the flow accompanying the inflow of raw water with the above circulation means and the raw water,
A water receiving tank for storing water to be circulated in the water production apparatus for washing lacquered wood products,
The bottom of the water receiving tank and the inlet are connected by a first water pipe;
The outlet of the water production apparatus for washing lacquered wood products and the upper part of the water receiving tank are connected by a second water pipe,
The first water pipe is provided with a branch pipe for taking out water for washing lacquered wood products,
The water tank is provided with a water supply section for supplying tap water.
Water production system for cleaning lacquered wood products. The water production system for washing lacquered wood products according to claim 1, wherein a capacity of the ceramic particles is set to 20% to 25% of a volume of the treatment tank. The total rock composition in terms of oxides is 6% or more of iron, 65% or more of silicon, and rocks containing quartz, feldspar and mica as constituent minerals and granulated, and then fired at a temperature of 1000 ° C or higher Furthermore, in the vertically long cylindrical treatment tank containing a large number of ceramic particles refired at 500 ° C. to 1000 ° C. in a reducing atmosphere, raw water is supplied from an inlet formed directly below the hemispherical lower end auxiliary tank. to the inflow,
Performing contact of the ceramic particles suspended, settle to rise up by the flow accompanying the inflow raw water Prefecture, to produce a different lacquered wood wash water of nature and raw water,
The washing water for lacquered wood products is sent to a water receiving tank for storing tap water, and the water in the water receiving tank is recirculated through the inlet of the treatment tank and repeatedly circulated.
Lacquered wooden products for cleaning water production method.