KR100712230B1 - Manufacturing Method for Ocher Board - Google Patents

Abstract

The present invention relates to a method of manufacturing a building board mainly based on ocher, and in particular, using fly ash and natural rubber solution as a component to reduce the weight of the product, increase the strength and effectively utilize waste resources The present invention relates to a method for manufacturing ocher boards, wherein the ocher powder and fly ash are blended in the range of 52 to 60% by weight and 26 to 30% by weight, respectively, and at the same time, 7 to 8% by weight of gypsum powder is added and mixed. Process; Then, while transporting the resulting mixture of ocher powder and fly ash to the conveyor belt, the batting mixing step of mixing the batting on top of it in the range of 3 to 10% by weight; Supplying natural rubber sap in a volume ratio of 7: 3 to the mixture obtained in the mixing step of mixing, kneading and kneading; Forming the ocher plate while supplying a silver foil and a mantle web above while forming the obtained mixture into a plate; Cutting the obtained ocher plate; And a step of drying the cut ocher plate material, and according to the present invention, it is environmentally friendly and can contribute to resource recycling with a health promoting effect, and the strength and crack prevention function of the board are improved.

Ocher board, fly ash, natural rubber sap, abrasion, crack prevention, far infrared emission

Description

Manufacturing method for ocher board {Manufacturing Method for Ocher Board}

1 is a view for showing the system of the facility for performing the ocher board manufacturing method according to the invention,

2 is a process flow diagram of a loess board manufacturing method according to the present invention,

Figure 3 is a view showing a cross section of the ocher board manufactured in accordance with the present invention.

<Explanation of symbols for main parts of the drawings>

1: ocher mixture 5: hemp

6: silver foil 10a, 10b 10c: mixer

20: Conveyor Belt 40, 70: Roller

50, 60 roll 80: cutting mechanism

90: Siler dryer 100: Ocher board

The present invention relates to a manufacturing method of a building board mainly composed of ocher, and in particular, by mixing fly ash and natural rubber sap as a component to reduce the weight of the product, increase the strength by the cotton and hemp cloth, and effectively waste resources It relates to a method of manufacturing an environmentally friendly ocher board that can be utilized.

In general, wood and gypsum board are used as materials for walls, ceilings, and floors in buildings, but wood is easily deformed due to weakness of moisture, and is highly flammable, making it difficult to extinguish during fire. As it is manufactured, indoor air cannot be moved to the outside due to the limit of insulation and ventilation, and it contains harmful ingredients such as asbestos, and it causes problems of environmental pollution such as soil and water when treating waste.

Therefore, in recent years, various attempts have been made to use ocher as a building finishing material.

Loess is a weakly alkaline soil collected from the lower layer of soil, which is different from the red soil on the surface. It contains a lot of calcium carbonate and is therefore not easily broken. It is because of this calcium carbonate that when water is mixed it turns into clay.

The size of ocher particles is about 0.02 ~ 0.05mm and consists of various mineral particles such as quartz, feldspar, mica and calcite. Chemically, it is composed of silica, iron, alumina, magnesium, sodium, potassium, lime, smectite and the like, and emits far infrared rays. In particular, smectite is also known as a substance that generates oxygen. These properties are known to exhibit the effect of purifying water, the effect of removing odors, and the like.

 Recently, it has been commercialized in various forms to take advantage of the properties and effects of ocher. For example, it is a product in the form of a dough that is applied to the floor, ceiling, or wall of an ocher room, an ocher jjimjilbang, an ocher sauna, and the like. Such conventional ocher products have a lot of cracks after construction, which makes them easy to fall off from the construction surface, and inconvenient construction, so as a solution to this, ocher and back cement or ocher and resin (adhesive) are mixed I use old products.

Mixing chemicals to prevent cracking in such conventional ocher products would detract from the original purpose of the loess for health and would rather benefit from not using such ocher.

In addition, in traditional buildings, it is widely used as a finishing material for walls or roofs by utilizing the peculiar properties of ocher. However, due to its weak bonding strength, it is usually weak to moisture and has a high surface strength. The work using plaster was required to compensate for the low weathering easily, and the technique of blending seaweed grass as an adhesive material was developed to improve strength and adhesion in building materials using ocher. The problem that the adhesive force is damaged by the corruption still occurred.

The present invention has been made in order to solve various problems in the prior art as described above, to reduce the weight of the ocher board, improve the strength and maintain a good adhesion to the ocher board manufacturing method that can eliminate the occurrence of cracks The purpose is to provide.

In addition, the present invention has another object to provide an environmentally friendly ocher board manufacturing method that can utilize the resources to be disposed of.

In order to achieve the objects of the present invention as described above, in the present invention, ocher powder and fly ash (Fly Ash) is blended in the range of 52 to 60% by weight and 26 to 30% by weight, respectively, and gypsum powder is 7 ~ Supplying and mixing in the range of 8% by weight;

Then, while transporting the resulting mixture of ocher powder and fly ash to the conveyor belt, the batting mixing step of mixing the batting on top of it in the range of 3 to 10% by weight;

Supplying natural rubber sap in a volume ratio of 7: 3 to the mixture obtained in the mixing step of mixing, kneading and kneading;

Forming an ocher plate by supplying silver foil to the bottom surface while supplying a mixture of the obtained ocher powder and fly ash, abrasive and natural rubber sap to a plate, and then supplying a mesh-like hemp fabric to the bottom;

Cutting the obtained ocher plate to a predetermined standard; And,

It provides a method for manufacturing ocher board comprising a step of drying the cut ocher plate material.

Furthermore, in the present invention, the feedstock and purified water are supplied in a ratio of 50:50 when the natural rubber solution is supplied, and when the ocher plate is formed, the hemp fabric supplied on the plate has a thickness of 0.1 to 1.0 mm, and instead of an aluminium mesh, It is also possible to supply nets made of plastic, steel or stainless steel.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments.

The ocher board manufacturing method of the present invention is made through the following manufacturing process, it will be described in detail as follows.

1 is a view showing a schematic configuration of a facility for performing an ocher board manufacturing process according to the present invention, Figure 2 is a view showing a flow chart of the ocher board manufacturing process according to the present invention.

1 and 2, the ocher board manufacturing process according to the present invention is the ratio of 52 to 60% by weight to 26 to 30% by weight of ocher powder and fly ash having a particle size of more than 325 mesh (mesh) Furnace is supplied to the first mixer 10a and blended for about 10 minutes at a rotational speed of about 500 RPM (S1). At this time, the gypsum powder is also fed to the first blender at 7 to 8% by weight and mixed together.

Next, the obtained ocher mixture was conveyed to the conveyor belt 20, and was loaded on the ocher mixture from the batter feeder 15 in an amount of about 3 to 10% by weight, and fed to the second mixer 10b, followed by Mix about 30 minutes at speed (S2).

Next, the ocher mixture obtained in the mixing process and the natural rubber solution are supplied to the third mixer 10c in a volume ratio of 7: 3, and blended for about 30 minutes at a speed of about 800 RPM and kneaded (S3). The natural rubber solution supplied in this process is preferably a mixture of the stock solution and purified water in a volume ratio of 50:50.

Subsequently, the obtained ocher mixture is passed through the first roller 40 to form a plate (S4). At this time, while feeding the foil paper 6 of a predetermined standard from the foil paper roll 50 to the bottom surface of the ocher mixture plate conveyed along the conveying line consisting of the conveyor belt 20, the ocher plate made of a mesh shape on the plate A hemp fabric having a thickness of 0.1 to 1.0 mm (trade name: Hemp Woollsey) 5 is fed while feeding from the roll 60, pressurized by a second roller 70 to be molded into a loess plate of a desired thickness. will be. At this time, the thickness of the hemp is most preferably 0.5 mm.

Finally, while transferring the obtained ocher plate along the transfer line, it is cut to a predetermined size using the cutting tool 80 (S5), and then conveyed to the drying silo 90 by a conveyor belt to a temperature of about 30 ° C. By hot air drying (S6) to manufacture the ocher board 100.

Meanwhile, the ocher board may be manufactured by supplying a mesh made of aluminum, plastic, steel, or stainless steel from the roll 60 onto the sheet molded product instead of the mesh made of the hemp fabric supplied to the transfer line in the sheet forming process.

Next, the functions of the various raw materials used in the ocher board manufacturing process of the present invention and the reason for limiting the values will be described.

Ocher powder is a basic raw material constituting the ocher board manufactured in accordance with the present invention, generates a large amount of far infrared rays, and contains smectite to produce oxygen has recently been in the spotlight more recently as an important construction material.

The ocher powder used in the present invention uses a very fine ocher powder having a particle size of 325 mesh or more as a raw material. When the particle size is smaller than 325 mesh, the mixing action is not smooth when mixed with other raw materials such as fly ash. Since the possibility of cracking of the manufactured ocher board is high, the particle size of the ocher powder is limited to 325 mesh or more, and it is formulated in an amount of 52 to 60% by weight to maintain basic properties such as far-infrared generation when the ocher board is manufactured. . Most preferably, 55% by weight of ocher powder is blended.

Next, fly ash, which is used in the ocher board manufacturing process according to the present invention, is a coal ash containing anthracite coal or bituminous coal in a power plant using coal as fuel, and is then burned to coal ash, which is discharged from the boiler to lower the dust collector. It is obtained by being collected in the form of fine particles having a particle size of 10 μm or less.

The fly ash is blended to reduce the weight of the ocher products, and is suitable for maintaining the basic properties of the ocher powder and blends 26 to 30 wt% of the fly ash with respect to 52 to 60 wt% of the ocher powder in order to achieve the purpose of light weight. . In addition, a particle size of 325 mesh or more is used for smooth mixing.

On the other hand, in the ocher powder and fly ash compounding step, it is preferable to mix and supply the gypsum powder at the same time, the gypsum powder is a lime mineral consisting of dihydrate of calcium sulfate, colorless to perform the curing action, 7 ~ 8 weight It is compounded in%, and it is most preferable to mix in 7.5% by weight. If the amount outside the above range is blended, the desired weight effect cannot be obtained.

Subsequently, the batting used in the ocher board manufacturing process of the present invention is a natural fiber raw material obtained from manila hemp, cut into 4-5 cm lengths and put into a cotton making machine, which is free of corrosion and prevents cracking of the loess and is interposed between fibers. It acts as a passage for ventilation and supplies oxygen. The batting is formulated in an amount of 3 to 10% by weight, which is intended to provide cracking and tensile strength of the final product, so that the batting is blended more than 10% by weight or less than 3% by weight. If cracking occurs, the tensile strength is weakened, the most preferred amount is 5% by weight.

In the present invention, the natural rubber solution is also blended into the ocher mixture, which is a natural inorganic material that is formulated to provide the necessary cracking prevention and tensile strength to the ocher board. If you knead your own breath. That is, it supports the role of smectite, which produces oxygen, increasing in summer and decreasing in winter. Feeding the natural rubber solution in a volume ratio of 7: 3 with respect to the mixture obtained in the batting mixing process is set in an amount suitable for kneading mixtures of ocher powder, fly ash, gypsum powder and batting.

On the other hand, the hemp fabric (5) pressed to the name of the ocher plate is a natural pollution-free fiber to increase the tensile strength of the product, to prevent warpage after drying, to perform the aeration function to secure space, and to assist the action of the loess characteristic material, Considering the thickness of the board, supply 0.1 ~ 1.0 mm thick cloth.

3 is a cross-sectional view of the ocher board manufactured according to the present invention, the upper surface and the lower surface of the ocher mixture plate 1 produced in the sheet forming step (S4), the fabric 5 and the silver foil (6) on the surface It is pressed to a predetermined thickness, the fabric 5, which is pressed to the top surface of the ocher plate (1), as described above, to prevent deformation such as improving the tensile strength and bending of the ocher board, provides a space for aeration and peculiar to the loess The silver foil 6, which is assisted to smoothly dissipate the active ingredient and pressed to a predetermined thickness on the lower surface, is intended to prevent the penetration of moisture and at the same time to enhance the thermal insulation and thermal insulation function.

On the other hand, the rotation speed and time of the mixer in each manufacturing process in the present invention is obtained as a value that can effectively mix the raw material components to produce the best product of the ocher board to be produced.

Hereinafter, the loess board manufacturing method according to the present invention will be described in more detail with reference to specific examples.

Example 1

First, 325 mesh loess powder, fly ash and gypsum powder were supplied to the first mixer 10a in an amount of 60% by weight, 28% by weight, and 7% by weight to rotate about 500 RPM. The mixture was blended at a speed of about 10 minutes, and then, while transporting the resulting mixture of ocher powder and fly ash, 5% by weight of a batting was placed thereon and fed to the second mixer 10b, followed by mixing at a speed of 1500 RPM for about 30 minutes. Next, the mixture of the obtained ocher powder, fly ash and abrasive is transported to the third mixer 10c, and the natural rubber solution is injected into the third mixer 10c at a volume ratio of 7: 3 to the supplied ocher mixture. After mixing and kneading for about 30 minutes at a speed of about 800 RPM, and then through the first roller 40 to form a plate. The natural rubber sap supplied in this process mixes the stock solution and the purified water in a volume ratio of 50:50, and at this time, the foil-based paper sheet (6) is transported to the bottom surface of the sheet during transfer of the molded ocher mixture plate 1 to the conveyor belt 20. ), And while feeding the 0.5 mm-thick web-like hemp 5 over the plate, pressurized by the second roller 70 to form a loess plate of the desired thickness, and finally, the obtained ocher plate Was cut to a predetermined size, transported to a drying silo 90 and dried at a temperature of 30 ℃ to prepare an ocher board (100).

Example 2

In this embodiment, the ocher board was manufactured through the same process as in Example 1 except that a mesh made of aluminum having the same thickness was supplied instead of the hemp fabric supplied to the upper surface of the ocher plate.

Comparative Example 1

In the present Comparative Example, unlike Example 1, instead of using a batting for the adhesive, the seaweed paste is blended in an amount of about 20% by weight based on the amount of ocher powder, and differs from Example 1 only in that no natural rubber sap is used. The ocher board was manufactured under the same process and manufacturing conditions.

Comparative Example 2

In this comparative example, the weight percent ratio of the clay powder to the fly ash was 4: 1 in the blending process of the ocher powder and the fly ash. The ocher board was manufactured under the same conditions as other process except that natural rubber sap was not used.

On the ocher boards of the present invention and the comparative examples prepared as described above were tested for the far-infrared emissivity and antifungal growth using FT-IR spectrometer, the strength test and the test for cracking after a certain time In this case, the far-infrared emissivity was about 0.920 compared to that of the black body in comparison with the comparative examples, and the growth of the antifungal bacterium did not occur for 4 weeks. In addition, the strength was much better than that of the comparative example and there was no cracking.

However, in the case of Comparative Example 1, the far-infrared emissivity was low, the antifungal bacterium growth was relatively large, the cracking occurred severely, and the intensity was low. In Comparative Example 2, the weight was heavier than the examples, the cracking was severely generated, and the strength was also greatly reduced. It has thus been shown that the ocher boards produced according to the invention can achieve certain intended effects.

Therefore, according to the ocher board manufactured by the present invention as described above, the following effects are obtained.

First, by manufacturing the building boards using the ocher material, which is beneficial to the human body, as the main material for building walls, floors, and ceilings, it can prevent various diseases such as adult diseases of modern people and meet well-being, the value of modern people. It is effective.

Second, it is environmentally friendly and excellent in terms of resource recycling because it can drastically prepare a fly ash recycling plan, which is generated as a by-product of power plant and disposal is a serious problem.

Third, the strength is improved and cracks can be prevented compared with conventional loess products using loess as a main material, which is particularly excellent as a building finishing material.

Although the present invention has been described in connection with the preferred embodiments as described above, the present invention is not limited thereto, and it is obvious that the present invention may be modified in various ways without departing from the scope of the appended claims, which are all It belongs to the scope of the present invention.

Claims (3)

Blending ocher powder and fly ash in the range of 60% by weight and 30% by weight, respectively, and simultaneously adding 7% by weight of gypsum powder to mix them; Then, while transporting the resulting mixture of ocher powder and fly ash to the conveyor belt, the batting mixing step of mixing the batting on top of it in the range of 3% by weight; Feeding, mixing and kneading the natural rubber sap in a volume ratio of 7: 3 to the mixture obtained in the mixing step of the batting; Molding the mixture of the obtained ocher powder and fly ash, batting and natural rubber sap into a plate while supplying silver foil to the bottom surface and then feeding a web of hemp fabric to form the ocher plate; And, The ocher board manufacturing method comprising the step of drying the cut ocher plate. The method for preparing ocher board according to claim 1, wherein the feedstock and purified water are blended at a volume ratio of 50:50 when the natural rubber solution is supplied. The ocher board manufacturing method according to claim 1, wherein the net supplied when forming the ocher plate is made of a material selected from the group consisting of aluminum, plastic, steel, and stainless steel.

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