KR101589382B1

KR101589382B1 - The method of ocher brick

Info

Publication number: KR101589382B1
Application number: KR1020140117466A
Authority: KR
Inventors: 김응숙
Original assignee: 김응숙
Priority date: 2014-09-04
Filing date: 2014-09-04
Publication date: 2016-01-28

Abstract

The present invention comprises a pre-treatment step (S100) of filtering out the impurities identified by visually recognizing yellow clay, separating three times with a 4-mesh screen and three times with a 5-mesh screen to remove fine impurities; A moisture control step (S100) in which the water content is adjusted to 30 to 40% by feeding water to maintain the microorganism population by feeding the microorganisms present in the loess through the pretreatment step (S100) and minimizing aggregation between the loess particles S110); A yellow loam kneading step (S200) in which 80% by weight of yellow loess and 20% by weight of rice husk which have been controlled in moisture through the moisture controlling step (S110) are mixed into a blender and kneaded while kneading to adjust the water content to 10-25%; The dough of dough is mixed with the mixture of rice husk and loess through the loess dough stage (S200) to increase the silicate content in the rice husk and loess, thereby increasing the durability and compressive strength of the loess dough due to the increase of pozzolanic reactivity. A processing step (S300) of compression molding with a press of 180 to 200 tons; And drying (S400) drying for 72 to 96 hours in daylight so as to prevent cracking of the yellow loess that has been compression molded through the processing step (S300) and decrease in physical properties (S400). .

Description

The method of ocher brick < RTI ID = 0.0 >

More particularly, the present invention relates to a method for producing a loess brick, which comprises selecting pure loess without contamination, adding rice husk to improve the amount of far-infrared rays emitted, and inducing the enzyme of the rice husk to react with loess, The present invention relates to a method for producing a yellow clay brick by compression molding in a state of increasing the durability and compressive strength of yellow clay dough due to the increase of pozzolanic reactivity by burning rice hulls and loess and raising silicate components in rice hulls and loess.

In recent years, the tendency to pursue well-being has become stronger. Well-being means "well-being, good-bye, happiness," and in our words, it is translated as "death." This can be seen as a new way of life or a cultural phenomenon that pursues a harmonious combination of body and mind in a high - tech industrial society that tends to be biased toward material abundance. The origin is not clear, but it refers to the Life of health and Suatainbility family, which finds relevance in hippieism that began in the 1960s in the United States, and who prefer environmentally friendly, ecologically and energy efficient products.

Well-being can be arbitrarily defined by encompassing various concepts, but ultimately it is a measure of happiness as a life that maintains healthy mind and body rather than material value or honor. In Korea, a so-called well-being boom began to emerge from the latter half of 2003, and those who pursue such a life are called well-being. They prefer fish and organic produce instead of meat, and they pursue their physical and mental health through meditation therapy such as danson breathing and yoga, and hobbies such as travel, mountain climbing, and reading.

In accordance with this well-being tendency, the demand for environmentally friendly loess bricks is increasing in the building materials rather than the existing reinforced concrete structures. Yellow clay bricks are beneficial to the human body because they are made of loess which is present in nature, and have the effect of controlling moisture, and other useful functions such as antibacterial function.

For example, Korean Patent Laid-Open No. 2000-0033318 discloses "a method for manufacturing a loess brick and a loess brick ".

The present invention also provides a method of producing a green algae dough, comprising the steps of: selecting yellow clay; mixing the selected yellow clay with salt, charcoal and seaweed, mixing and kneading the water; extruding the yellow clay dough; A cutting step of cutting the extruded molded product to a predetermined length, and a drying step of drying the cut molded product.

However, in the above patent, the durability of the loess is improved by using the adhesive called seaweed paste. This is an action to reduce the breathability and the human benefit, which is the advantage of the loess, so as to maintain the essence of the loess, The necessity of technological thought emerged.

Korean Patent Publication: Publication No. 2000-0033318

The present invention has been made in order to solve the problems as above, and it is an object of the present invention to improve the deodorizing and purifying power by inducing the rice husk enzyme to react with the loess by increasing the amount of far- It is a problem to be solved to provide a method for producing yellow clay bricks by burning yellow loess and raising silicate components in rice husk and loess so as to increase the durability and compressive strength of yellow loam dough due to the increase of pozzolanic reactivity.

In order to accomplish the above object, the present invention provides a pretreatment step (S100) in which yellow soil is visually distinguished to remove impurities, and then filtered twice with a 4-mesh net and three times with a 5-mesh net to remove fine impurities. A moisture control step (S100) in which the water content is adjusted to 30 to 40% by feeding water to maintain the microorganism population by feeding the microorganisms present in the loess through the pretreatment step (S100) and minimizing aggregation between the loess particles S110); A yellow loam kneading step (S200) in which 80% by weight of yellow loess and 20% by weight of rice husk which have been controlled in moisture through the moisture controlling step (S110) are mixed into a blender and kneaded while kneading to adjust the water content to 10-25%; The dough of dough is mixed with the mixture of rice husk and loess through the loess dough stage (S200) to increase the silicate content in the rice husk and loess, thereby increasing the durability and compressive strength of the loess dough due to the increase of pozzolanic reactivity. A processing step (S300) of compression molding with a press of 180 to 200 tons; (S400) drying in a daylight for 72 to 96 hours so as to prevent cracking of the yellow loess that has been compression-molded through the processing step (S300) and prevention of property deterioration.

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According to the present invention having the above-described structure, rice husk is added to uncontaminated pure yellow soil to maintain the essence of the yellow loam, thereby improving the amount of far-infrared rays that is beneficial to the human body, and by the interaction of numerous microorganisms existing in rice hulls and loess, And the effect of improving the cleaning power can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall process diagram of a method for manufacturing a loess brick according to the present invention; FIG.

According to the present invention having the above-described constitution, the present invention can improve the far-infrared emissivity which is beneficial to human body by adding rice husk to uncontaminated pure yellow soil and maintain the essence of the yellow loess, The present invention relates to a method for producing a yellow clay brick which can obtain an effect of improving a deodorizing ratio and a cleansing power.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which: Will be apparent with reference to the examples.

The present invention is characterized in that yellow clay and rice husk are mixed to produce bricks. The mineralogical characteristics of the loess used in the present invention are as follows. First, mineralogical characteristics vary depending on the kind and weathering degree of the origin rock, namely, the location of the loam, and the constituent material is composed of minerals, amorphous materials and organic materials, Clay minerals are classified into clay minerals, quartz and other minerals. Clay minerals include quartz and feldspar, kaolin minerals, ilite, hydrous lamellar vermiculite (HIV), mica / vermiculite mixed minerals and chlorite minerals It contains small amounts of hornblende, goethite and gibbsite, and feldspar and mica are formed in the process of chemical weathering and ultimately changing into kaolinite. The kaolinite, gypsum-gibbsite, is a gibbsite plate sandwiched between two plagioclase plates, with a potassium ion bound between the ylite layers and a specific surface area of 80 m2 / g. Monomorillinite has a structure similar to that of Illyite, and one gibbsite plate is bonded between two silica plates. Although not a potassium ion bond as in Ilright, a large amount of water is absorbed into the space between layers Feature.

Secondly, as the chemical component, the type of loess is composed of various mineral particles such as quartz, feldspar, mica and calcite, and there are yellow soil and red soil as pale yellow sediments, silica (SiO2) Al2O3 is 8 ~ 12%, CaO is 5 ~ 12%, MgO is 2 ~ 6%, Ferric Oxide is 2 ~ 4%, Ferric Oxide is 0.8 ~ 1.1% Titanium dioxide (TiO2) and manganese oxide (MnO) are composed of 0.5% each, and their composition, composition and composition are very similar to kaolin, and iron oxide content is somewhat high. It belongs to transition element oxides, and it is known that the far-infrared radiation rate has a high efficiency of 95% or more on average.

Thirdly, Hwangtoe neutralizes the alkali component of cement concrete which is the mainstream of building material, and it has excellent heat accumulation effect and humidity control ability, and can provide a pleasant indoor environment because it is excellent in hunting period and adsorption power. In addition, it has high activity such as plasticity, adsorption absorption and dehydration, suspension, ion exchange, etc., and it is widely used for various purposes such as building materials, soil conditioner, medicinal use, ocher bed and red tide removal, and clay minerals If you understand its nature and characteristics, it will be useful for many purposes.

That is, soil is one of the building materials that has the lowest thermal conductivity. In Korea, the difference between temperature and humidity changes dramatically throughout the year, so the material that controls it is no better than the soil, and it is the most efficient structure among the construction materials that block cold or heat. The heat is not transmitted to the inner wall, and cold air in winter does not spread to the inner wall.

In addition, the earth wall does not only have a heat shield effect but also serves to maintain the humidity properly. Because Korea belongs to the monsoon zone, rain is frequent, so humidity fluctuates extensively. In the rainy season, the humidity rises to 90%. In the dry season, the humidity rises to 30% And when the humidity is low, it gives off the humidity and maintains the pleasant humidity.

In addition, the ventilation function of the earthen walls is not ventilated at all, but the earthen walls are ventilated through the fine particles of the soil. This is due to the ventilation function of the soil, .

The rice husk used with this loess is the shell of rice, which accounts for about 20% of the rice weight. In Korea, about 800,000 tons of rice husk is produced each year. Most of them are used for housing rugs or compost, and some fuel, abrasives, . Studies on these rice hulls have been reported to contain glycosyl flavonoids such as Ramarathnam and phytic acid as antioxidants. Jacob et al.

The present invention aims at inducing the occurrence of interactions by mixing the above-described loess and rice hulls to maximize the respective beneficial effects.

In order to achieve the above object, as shown in FIG. 1, a pretreatment step of filtering out impurities identified by visually identifying yellow clay and filtering out the fine impurities three times with a 4-mesh screen and three times with a 5-mesh screen (S200) in which 80% by weight of the loess and 20% by weight of the husk are added to a mixer and the moisture content is adjusted to 10 to 25% while pulverizing the kneaded loess (S200) (S300) for compressing and molding the yellow loess (S300), and a drying step (S400) for drying the yellow loess in daylight.

The preprocessing step S100 is a second step of removing the impurities identified and identified by the eyes in order to remove impurities such as stones in collecting the loess and then screening them twice with a lattice net made of 4 meshes, The mesh is composed of 5 mesh meshes selected three times to sort out the particles according to the order of impurities to obtain only pure yellow soil is a step.

In this step, water is injected in order to maintain the microbial population by feeding microbial food such as minerals and living conditions of the microorganisms present in the loess after filtering the impurities, and controlling the water content to 30 to 40% (S110) is further performed. At this time, when the moisture content is less than 30%, the living conditions of the microorganisms are not guaranteed during the manufacturing process, so that the microorganism population is decreased, and thus the inherent efficacy of the loess can be reduced. Furthermore, when the moisture content is more than 40%, a dilute dough is formed during the production process, resulting in a lack of viscosity, resulting in deterioration of physical properties, which may result in failure in pressing with the rice husks contained in the subsequent process.

In the loess dough step (S200), 80% by weight of the loess and 20% by weight of the rice husk are put into a mixer and the water content is adjusted to 10 to 25% while pulverizing.

The loess is formed with the water content of 30 to 40% by performing the above-described moisture control step (S110), wherein the loess is reacted with water to cause its own intergranular flocculation, thereby reducing the volume by about 6% do. This can be a major cause of cracking and can cause problems with the loess bricks.

In order to solve the above problem, the hulls are mixed with the hulls. In other words, the moisture content is adjusted to 30 to 40% in order to minimize cohesion between loess particles, but the compressive strength is low because the viscosity is low for use while maintaining this. That is, the rice husks are densely covered with their inner and outer shells, so they are not easily corroded and can absorb moisture up to about 680% of their own weight. Therefore, 20 wt% of rice husk is added to 80 wt% To absorb the moisture of the loess. As a result, the moisture content of the dough mixed with the yellow clay and the rice hull can be controlled to 10 to 25%, so that the compression strength can be improved.

On the other hand, it will be possible to burn rice hulls and loess to be more consistent with the above-mentioned purposes. By burning the rice hull and loess, the silicate component in the rice hull and loess soil can be increased to increase the pozzolanic reactivity. Here, the term "pozzolanic reaction" refers to a state of fine powder under a room temperature condition and reacting with calcium hydroxide in the presence of moisture to cure, thereby enhancing durability and compressive strength by increasing pozzolanic reactivity.

The processing step (S300) is a step of compression molding the yellow loam having a viscosity to a predetermined size with a 180 to 200 ton press, and the size may be set to 300 mm x 150 mm x 130 mm. If it is smaller than this, a lot of bricks are needed, so that the unit price is increased at the time of construction. If the size is larger than the above-mentioned size, it conflicts with the purpose of securing convenience in handling.

In addition, the final yellow loam is kept at a moisture content of 10 to 25%, and is suitably compressed into a press of 180 to 200 tons. In other words, the pressing force of the press may be different depending on the water content, and the water content of the present invention is preferably 180 to 200 tons.

On the other hand, if compression is carried out with a press of 200 tons or more while maintaining the moisture content of the present invention, the shrinkage due to the subsequent drying step will not be suitable for a predetermined size, and the meaning of the size set in this step is discolored. When the compression is performed with a press of 180 tons or less, the rice husk and the yellow loess do not adhere to each other, so that the moisture is slowly evaporated through the daylight drying, cracks are generated, .

The drying step (S400) is a step of increasing the durability by drying the yellow clay that has been compressed in the above-mentioned step and cut to a predetermined size by daylight.

On the other hand, another drying method of the loess has the purpose of minimizing cracking by drying in the shade. However, if dried in this way, a clean and beautiful surface can be obtained, but there is a risk that water remains in the inside of the yellow clay and it is easily broken, so it may not be suitable as a brick technicalist used as a building material.

In order to solve the above-mentioned problems, the present invention prevents drying of microorganisms by inducing drying through daylight, i.e., sunlight, without drying in a sound field, thereby maintaining a constant temperature. At this time, daylight drying is carried out for 72 to 96 hours to completely remove water content in the rice hull and the loess soil, thereby preventing cracks or physical properties from being reduced after drying.

Hereinafter, embodiments of the present invention will be described in further detail to demonstrate the effectiveness of the present invention.

The results of chemical analysis of the loess and rice husk were as shown in Table 1.

SiO2 AI₂O₃ Fe₂O₃ MgO Na2O K₂O CaO ocher 40 to 50 20 ~ 30 5 to 6 2 2 1.5 8.5 chaff 93 One One One 2 One One

Table 2 shows the results of checking the amount of far-infrared rays emitted from each of the rice hull and the yellow soil.

Type of wavelength material 6 탆 8 탆 10 탆 12 탆 14 탆 16 탆 18 탆 20 탆 chaff(%) 88.4 88.6 89.7 91.6 92 92.4 93 94.5 ocher(%) 89.4 90.1 90.3 91 92.1 93.4 93.5 94.2

80% by weight of the loess and 20% by weight of the husks obtained in the pretreatment step (S100) were put into a blender and pulverized to adjust the water content to 10 to 25%. The kneaded loess was compression-molded into 180 to 200 ton presses and cut The yellow loess was heated until the temperature of the loess brick produced by the drying step of drying the loess for 72 ~ 96 hours in daylight reached 40 ℃. The far infrared ray emissivity (6 ~ 20㎛) and radiant energy W / m < 2 >) were measured.

Far Infrared Emission (40 ℃) Emissivity (6 to 20 탆) Radiant energy (W / ㎡) Example 3 0.911 3.65 × 10²

80% by weight of the loess and 20% by weight of the loess were passed through a pretreating step (S100) and 20% by weight of the rice husk was put into a blender and pulverized. The loess dough whose moisture content was adjusted to 10-25% was compression- Was measured in an environment of a temperature of 21 ± 3 ° C and a relative humidity of 55 ± 15% RH on the basis of KCL-FIR-1042 for yellow clay bricks produced by drying in a daylight for 72 to 96 hours The results are shown in Table 4.

Test Items Test results (pieces / cm³) BLANK 72 Example 4 84

80% by weight of the loess and 20% by weight of the husks obtained in the pretreatment step (S100) were put into a mixer, and the loess dough, whose moisture content was adjusted to 10 to 25%, was put into a 5 L size reactor of 40 mm x 40 mm x 10 mm After the sealing, the initial concentration of the test gas was injected at 50 mol / mol and the concentration of the test gas was measured at the initial (0 minute), 30 minute, 60 minute, 90 minute and 120 minute, The humidity was maintained at 50% ± 10%, and the deodorization test was carried out by the test method according to KS I 2218 as shown in Table 5.

Test Items Test result BLANK concentration (umol / mol) Example 1 Concentration (umol / mol) Deodorization rate (%) Deodorization
exam
(HCHO)
0 minutes 50 50 0.0 30 minutes 48 15 67.3 60 minutes 48 11 75.5 90 minutes 48 9 79.6 120 minutes 47 8 81.2

As shown in Table 1, the chemical composition of the loess is composed of 40 to 50% of SiO2, 20 to 30% of AI2O3, 5 to 6% of Fe2O3, 2% of MgO, 2% of Na2O, 1.5% of K2O and 8.5% of CaO, The chemical composition of the samples were 93% SiO2, 1% Al2O3, 1% Fe2O3, 1% MgO, 2% Na2O, 1% K2O and 1% CaO. The results of this study are as follows. The pozzolanic reaction caused by the mixture of pure yellow loess and water was found to be caused by the pozzolanic reaction of SiO ₂ and CaO, Its reactivity is very low, which may cause problems in durability and strength.

In the meantime, the present invention improves the self-hydraulic property, that is, the pozzolanic reactivity, by causing the chemical reaction of 3Ca (OH) ₂ + 2SiO₂➝3CaO.2SiO₂⋅3H₂O by mixing the yellow loess and the rice hull. In other words, by mixing the rice hulls in the loess and reinforcing SiO2 and CaO, inducing the pozzolanic substances to be smoothly produced, and improving the pozzolanic reactivity, the crush strength is improved and the internal cracks are prevented positively.

As shown in Table 2 above, when the rice hull and loess of Example 2 were investigated, the rice hull was 88.6%, the loess was 90.1%, the loess was 88.4%, the loess was 89.4% In the case of ㎛, 92.7% of the rice husk was 90.3%, the rice husk was 91.6%, the yellow rice was 91%, the rice husk was 92.1% It was confirmed that the emissivity of 18 탆 rice hulls was 93%, that of loess was 93.5%, and that of 20 탆 rice hulls was 94.5% and that of loess was 94.2%. As a result, it was confirmed that the emissivity of far - infrared rays was generally high in the yellow loess, and the emissivity of the rice was higher in a certain interval. Therefore, it is considered that the far infrared ray emission is increased by mixing the yellow loess and the rice husk.

As shown in Table 3, it was confirmed that the yellow clay bricks produced in Example 3 exhibited an emissivity (6 to 20 μm) of 91.1% and a radiant energy (W / ㎡) of 3.65 × 10 2. As a result, it was found that the mixture of yellow loess and rice husk was more than 98.8% in average emissivity measured at 6 ~ 20 ㎛. Which is higher than one figure.

Therefore, the yellow clay brick produced by the present invention does not impair the inherent function of the yellow clay and improves the emission of far-infrared rays, thereby maximizing the beneficial effect on the human body, thereby further enhancing the quality of daily life of modern people.

To explain the anion emission amount measurement result of Example 4 illustrated in Table 4, BLANK and Example 4 are the results measured at a measurement distance of 1 cm. In detail, BLANK produced 72 anions / cm3, and Example 4 produced 84 anions / cm3. As a result, it was confirmed that the deodorization ratio was improved by mixing the rice husk into the loess, and the purification ability of the surrounding space was improved.

As shown in Table 5, the results of the deodorization test in Example 5 were as follows. The concentration of BLANK was changed from 50 to 48 while 30 minutes passed at an initial gas concentration of 50 umol / mol, Was changed from 50 to 15.

As a result, it was confirmed that the deodorization rate of about 67.3% was improved and the deodorization rate was continuously increased over the first 30 minutes of Example 5. Therefore, the yellow loam dough having a moisture content of 10 to 25% while being blended with 80 wt% of loess and 20 wt% of rice husk after being subjected to the pretreatment step (S100) transforms organic compounds into inorganic compounds, It was confirmed that a pleasant environment can be guaranteed.

The above-described embodiment is a description of the experimental results conducted by the Korea Institute of Construction & Living Environment Test. That is, the loess bricks produced by the method of the present invention, the loess bricks are mixed with the horseshoe at the optimum mixing ratio, The microorganisms can coexist as a community and maximize the beneficial functions of the loess, thus ensuring a comfortable life for modern people.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be noted that this invention is provided to fully inform the owner of the scope of the invention. In addition, the true scope of the present invention should be construed according to the appended claims, and all technical ideas within the scope of equivalents should be construed as being included in the scope of the present invention.

S100: preprocessing step S110: moisture conditioning step
S200: Loess dough step S300: Processing step
S400: drying step

Claims

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A pretreatment step (S100) in which yellow soil is visually identified to remove impurities that are identified, and 2 times with a 4-mesh net and 3 times with a 5-mesh net to remove fine impurities;
A moisture control step (S100) in which the water content is adjusted to 30 to 40% by feeding water to maintain the microorganism population by feeding the microorganisms present in the loess through the pretreatment step (S100) and minimizing aggregation between the loess particles S110);
A yellow loam kneading step (S200) in which 80% by weight of yellow loess and 20% by weight of rice husk which have been controlled in moisture through the moisture controlling step (S110) are mixed into a blender and kneaded while kneading to adjust the water content to 10-25%;
The dough of dough is mixed with the mixture of rice husk and loess through the loess dough stage (S200) to increase the silicate content in the rice husk and loess, thereby increasing the durability and compressive strength of the loess dough due to the increase of pozzolanic reactivity. A processing step (S300) of compression molding with a press of 180 to 200 tons;
(S400) drying in a daylight for 72 to 96 hours so as to prevent cracking of the yellow loess that has been compression-molded through the processing step (S300) and decrease in physical properties.