KR102358079B1 - A manufacturing method for pottery having a red colour background with various size and type spotted pattern formed - Google Patents

Abstract

The present invention relates to a method for manufacturing ceramics having a red background and greenish brown spotted patterns of various sizes and shapes formed, which manufactures ceramics through processes of molding a molded product of ceramics using a raw material of the ceramics, preheating a furnace inlet, primary firing, primary glazing by primary glaze, secondary firing, secondary glazing by secondary glaze, thirdly firing, cooling a firing chamber, and withdrawing the ceramics, wherein the ceramics through secondary firing after the primary glaze form a red background, and the ceramics through the secondary glazing by the secondary glaze and the thirdly firing form greenish brown spotted patterns of various sizes and shapes on the red background. According to the present invention, aesthetic properties can be improved.

Description

A manufacturing method for pottery having a red color background with various size and type spotted pattern formed on a red background

The present invention relates to a process of forming a ceramic molding using a raw material for ceramics, preheating the barrel, priming, primary glazing by primary glaze, chaebol, secondary glazing by secondary glazing, sambal, and cooling of the firing chamber and withdrawal of porcelain The ceramics are manufactured through, but the ceramics baked by the chaebol by the primary glaze form a red background, and by the secondary glaze, the ceramics made with the secondary oil and sambal-grilled are made of various sizes and sizes on the red background. It relates to a manufacturing method of porcelain in which greenish-brown spots of various sizes and shapes are formed on a red background that forms greenish-brown spots of the shape.

In general, the ceramic manufacturing process is manufactured through processes such as preparing small earth, molding a ceramic product, and drying, unglazed, glazed, and chaebol-grilled.

In the above, the small soil preparation process consists of finely pulverizing small soil such as clay or sand, removing impurities through a sieve, precipitating it in water, collecting only fine sediment, and drying in the shade for a certain period of time.

In addition, molding is made using methods such as wheel molding, injection molding, extrusion molding, and compression molding, and is a process of making a predetermined bowl or work shape. Drying is a process of sufficiently drying the molded semi-finished product in the shade, and In some cases, poems are engraved on semi-finished products.

The semi-finished product that has been sufficiently dried as described above is unglazed by loading it in a kiln and baking, and after applying glaze to the unglazed product or glazing to decorate a predetermined pattern and veggie, load it back into the kiln for about 1250~ The chaebol grilling is performed by maintaining a temperature of about 1300°C for about 20 to 30 hours.

Chaebol-grilling differs depending on the type of ceramics. For example, buncheong porcelain is heated at 1220~1250℃, celadon at 1250~1280℃, and white porcelain at 1280~1300℃.

In the process of making such pottery, the work of firing pottery has traditionally been used in a wood-fired kiln since ancient times. is connected with Bongtong preheats the entire kiln. For preheating of the kiln, 8 to 10 hours for Buncheong porcelain, 10 to 12 hours for celadon, and 14 to 15 hours for white porcelain are required depending on the difference in the firing temperature of the pottery. There is a difference depending on the size, etc.

The firing kiln is a kiln that fires pottery, and the firewood kiln uses soil and bricks to form a round kiln, then inserts the pottery to be fired into the inside of the kiln (firing compartment), preheats the kiln by means of a kiln, and then re-heats the kiln. A wood fire is built inside the kiln, and the entrance of the kiln is blocked with earth or fire bricks to prevent the wood fire from escaping, and the pottery is fired.

During this firing process, cracks occur in the kiln due to the expansion of the kiln due to high temperature and high pressure during the firing process, and these cracks must be filled with loess soil during firing. There were also cases in which cold air penetrated inside through cracks and caused a cold wave of ceramics.

When the firing of ceramics is completed, after the kiln is cooled, the entrance blocking the front of the kiln is broken, then goes into the broken entrance and takes out the baked ceramics back to the entrance, thereby completing the firing of ceramics.

As described above, in the traditional wood-burning kiln of the prior art, as the ceramics are fired by the wood fire, the material of the ceramics mixes with the earth component and the subtle light that appears when the soil is heated and baked in a wood fire, making the colors of ceramic bowls beautiful. However, in order to use the wood-burning kiln as described above, it is inconvenient that the worker has to transport the pottery one by one through a narrow entrance to insert or withdraw the pottery into or out of the kiln. It is impossible to work, and industrial waste such as soil that closes the entrance is continuously generated, causing environmental pollution. There is a problem with falling.

In addition, by installing the kiln on the soil as it is, there is a problem in that the refractory bricks disintegrate due to ground subsidence, moisture generated from the soil, or moisture mixed in when the entrance is normally opened, thereby shortening the durability of the kiln.

In addition, it is difficult to control the temperature because the temperature condition of the kiln must be checked while watching the color of the flame inside during the firing time. There is a problem in that the degree of completeness is significantly reduced to the extent of not exceeding 10 to 20% due to heat loss due to failure of temperature control and cracking, and damage to ceramics due to intrusion of cold air during cooling.

Due to these problems, gas kilns or electric kilns are widely used and widely used to solve the inconvenience of the above-mentioned traditional firewood kilns. The effect of improving workability can be expected because large-scale ceramics or mass production is possible, but there is a disadvantage that various thixotropes of ceramics are impossible when ceramics are baked using such a gas or electric kiln.

Therefore, it is necessary to develop a traditional firewood kiln that can burn ceramics more conveniently in firing ceramics using a traditional firewood kiln that can obtain the beautiful color that appears when the ceramic material is burned by a wood fire.

In order to improve the above problems, in Utility Model Registration No. 20-0430334, as shown in FIGS. 1 and 2, an empty space 20 is installed between the stick tube 10 and the firing chamber 30, A firewood kiln for porcelain firing is known, in which the kiln serves as the second kiln, and the two kilns preheat the kiln to shorten the preheating time and save fuel.

Also, in Patent Registration No. 10-1122522, there is known a wood kiln that improves heat transfer efficiency by forming a support protrusion on a rod barrel.

In consideration of the preheating time, the above kilns appear to be kilns for baking Buncheong porcelain.

However, the above traditional kilns simply have two kilns or have a configuration to increase thermal power by helping the burning of bonfires in the kilns. .

Accordingly, in order to overcome the problems of the prior art, in Patent Registration No. 10-1457987 (October 29, 2014), as shown in FIGS. 7 and 8, "a pottery composed of a stick tube, a plurality of firing chambers, a stack, and a chimney. In the firewood kiln 100 for firing, the firewood inlet 111 that moves up and down is formed, the barrel 110; The fire control flow wall 170 is formed in an oval hollow 124; and the roof of the wood kiln is a fire brick layer 200, and a glass fiber layer 201 is covered thereon, and then a fire earth layer 204. After forming in turn, binding with wire 202, and covering the outside with a layer of ocher 203, a firewood kiln for firing ceramics, characterized in that it is configured.

The firewood kiln for firing ceramics of the prior Patent Registration No. 10-1457987 has a fire door at the entrance of the conventional firewood kiln, a vertical opening and closing sliding door at the entrance of the bontong, a pressure control means and a thermometer in each firing compartment, and at the same time, the base is made of reinforced concrete and formed in a configuration to prevent heat insulation and expansion on the ceiling wall of the kiln, reducing the heating time of the entire kiln by half compared to the existing firewood kiln, considering the difficulty of finding red pine in recent years This has the advantage of reducing fuel by less than half, and has the advantage of increasing the utility of the firewood kiln by improving the durability of the kiln and the completeness of ceramics to more than 90% As it is delivered to the compartment in turn, the upper firing compartment loses more heat than the lower firing compartment. At this time, there was a problem in that the more the firing compartment located at the top, the more firewood needed for the main fire was put in than the firing compartment located at the bottom.

In addition, the firewood kiln for firing ceramics of the above prior Patent Registration No. 10-1457987 is adjacent to the firing compartment 123 located at the uppermost side of the stack and the chimney in the upper central portion of the empty compartment 124 located above the kiln. Also, by installing the fire flow control wall 170 in the upper central part of the empty compartment 124, the length of the flow of fire in each firing compartment until it exits to the stack 125 and the chimney 126 is uniformly Although it has the advantage of maintaining the same temperature in the firing compartment by adjusting it to keep the quality of ceramics constant, the time for the fire to stay in the empty compartment 124 is relatively short, so There was a problem in that the leakage of firearms in the firing chamber and heat loss occurred accordingly, and this had an effect on the deterioration of the quality of ceramics.

In addition, in the above conventional firewood kiln for firing ceramics of Patent No. 10-1457987, a fire hole 140 through which you can check the state and temperature of the object being fired is penetrated and formed in the sidewall of each firing compartment, like this Since the fire viewing hole 140 is formed through the sidewall of each firing compartment, there is a risk that fire in the firing compartment may leak to the outside through the fire viewing hole 140, as well as the human eye. It can also adversely affect the health of the body.

On the other hand, as one of the porcelain manufacturing processes different from the porcelain manufacturing process described above, in the prior Patent Registration No. 10-0943253 (2010.02.11.), 'a window of a desired pattern and shape in a porcelain molding molded using a porcelain raw material' perforated; first firing the perforated porcelain molding at a temperature of 900 to 1000° C. (unglazed); applying a glaze to the main body of the unglazed pottery (first glazing); secondary firing of the glazed ceramics at a temperature of 1200 to 1300°C (second firing); attaching scotch tape to all windows formed on the outside of the secondary fired ceramics; glazing all window areas from the inside of the pottery (2nd glazing); And the third firing of the glaze-filled ceramics at a temperature of 1200 to 1300 ℃ (third firing); A method for manufacturing ceramics having a window-through effect consisting of steps is proposed.

The conventional method of manufacturing ceramics of Patent Registration No. 10-0943253 has the effect of providing a new ceramics having a window see-through effect by forming windows of various patterns through which the contents can be seen through the side or lower part of the ceramics, but As for the new pottery that has a window-permeable effect, which forms windows of various patterns through which the contents can be seen through the side or lower part of the pot, consumers have mixed likes and dislikes. Although they would prefer the new ceramics with the window see-through effect that formed the windows of

Registered Patent No. 10-0943253 (2010.02.11.) Registered Patent No. 10-1457987 (2014.10.29.)

The method for manufacturing porcelain in which greenish-brown spots of various sizes and shapes are formed on a red background according to the present invention is intended to solve the following issues.

An object of the present invention is to manufacture porcelain with greenish-brown spots of various sizes and shapes on a red background to improve aesthetics, thereby satisfying consumer preferences. is to provide

Another object of the present invention is to improve esthetics and to satisfy consumer preferences when manufacturing ceramics with greenish-brown spots of various sizes and shapes on a red background, after preheating the bontong and preheating the firing compartment accordingly. When the firewood located at the bottom and the firewood located at the top are the same when the main fire is started, the internal temperature of the entire firing compartment will rise to the same set temperature within the same time without heat loss when the input amount of firewood required for the main fire is the same. It is to provide a method of manufacturing porcelain in which greenish-brown spots of various sizes and shapes are formed on a red background that allows

Another object of the present invention is to improve the aesthetics and to satisfy the consumer's preference when manufacturing ceramics with greenish-brown spots of various sizes and shapes on a red background, the time the firearm stays in the empty compartment 124 Due to the relatively slow discharge of the firearms, it reduces the leakage of firearms in the firing compartment and consequently reduces heat loss, which contributes to the improvement of the quality of ceramics. To provide a method for manufacturing ceramics.

It is a further object of the present invention, when manufacturing porcelain in which greenish-brown spots of various sizes and shapes are formed on a red background to improve aesthetics and satisfy consumer preferences, the fire in the firing compartment is To provide a method for manufacturing ceramics with greenish-brown spots of various sizes and shapes on a red background that is not likely to leak and has no risk to the health of the body, including the human eye, who visually checks the fire in the firing compartment. .

In order to solve the above problems, the method for manufacturing porcelain in which greenish-brown spots of various sizes and shapes are formed on a red background according to the present invention is configured as follows.

A porcelain molding forming step (S1) of molding a porcelain molding using a porcelain raw material; Bongtong preheating for preheating the bongtong 110 of the firewood kiln for firing ceramics including the bongtong 110 through which the fire can be sequentially transmitted through the spear ( 150 ) and a plurality of firing compartments (120, 121, 122, 123) step (S2); A prime step (S3) of unglazing the molded porcelain molding at a temperature of 800°C in the firing compartments (120, 121, 122, 123) of the firewood kiln for firing the ceramics; a first glazing step (S4) of taking out the unglazed porcelain from the firewood kiln for firing the porcelain and applying a primary glaze to the main body of the unglazed porcelain; a chaebol step (S5) of chaebol-roasting the porcelain coated with the primary glaze at a temperature of 800°C in the firing compartments (120, 121, 122, 123) of the firewood kiln for firing the porcelain; a second lubrication step (S6) of taking out the chaebol-roasted porcelain from the firewood kiln for firing the porcelain and applying a secondary glaze to the main body of the chaebol-grilled porcelain; Three-fold step (S7) of roasting the ceramics coated with the secondary glaze at a temperature of 1,240° C. in the firing compartments (120, 121, 122, 123) of the firewood kiln for firing the ceramics; and cooling the kiln for 4-7 days, then opening the door and taking the finished porcelain out of the kiln, cooling the kiln and taking out the porcelain (S8). To form a red ground, the primary glaze is a glaze comprising 25% by weight of feldspar powder, 20% by weight of silicate powder, 20% by weight of kaolin powder, 15% by weight of clay powder, 15% by weight of iron oxide powder, and 5% by weight of manganese powder The secondary glaze is composed of raw materials and water, and the secondary glaze is feldspar powder 36 so that the secondary glaze forms greenish-brown spots of various sizes and shapes on the red background by the secondary glaze. It is characterized in that it consists of water and a glaze raw material consisting of weight %, silica powder 27% by weight, zinc powder 12% by weight, talc powder 15% by weight, and barium carbonate powder 10% by weight.

The firewood kiln for firing the porcelain, the firewood inlet 111 is formed in the bontong (110); a plurality of firing compartments (120, 121, 122, 123) in which an entrance door 130 having a firewood inlet 131 formed therein is installed in the entrance and a fire viewing hole 140 is formed; A semi-elliptical hollow space 124 having a streamlined inner wall surface for guiding the fire to flow without a vortex into the stack; a stack 125' connected to the empty compartment 124; a chimney 126' connected to the stack 125; a plurality of slits (150) forming a passage through which fire passes between the bontong (110) and the plurality of firing compartments (120, 121, 122, 123); and a multi-stage pipe device 300 embedded in the foundation and supplying fire generated by preheating of the bongtong 110 to the plurality of firing compartments 120, 121, 122, and 123 without heat loss. (110) and the plurality of firing compartments (120, 121, 122, 123) and the empty compartment 124 are below in any one of the inclined ground foundation, the inclined concrete foundation, and the inclined reinforced concrete foundation 210 It is characterized in that it is formed sequentially from top to bottom.

The primary glaze is applied to the main body portion of the unglazed porcelain at a 35 degree glaze, and the second glaze is applied to the main body portion of the chaebol-roasted porcelain at a 40 degree glaze.

The ceramic molding forming step (S1) is to prepare a ceramic raw material consisting of 70% by weight of an earth material consisting of 70% by weight of white clay and 30% by weight of pink clay and 30% by weight of water prepared by sieving a 50-mesh sieve. raw material preparation step (S1-1); A ceramic-shaped molding forming step (S1-2) of mixing, stirring, kneading, and molding the ceramic raw material to form a ceramic-shaped molding; and a drying step (S1-3) of naturally drying the molded porcelain-shaped molding for 4 to 5 days so as to have a moisture content of 5 to 7%.

The present invention can exhibit the following effects by the above solution.

First, the effect of providing a method of manufacturing porcelain with greenish-brown spots of various sizes and shapes on a red background that satisfies the taste of consumers by improving the aesthetics by manufacturing porcelain with various sizes and shapes of greenish-brown spots on a red background there is

Second, when manufacturing ceramics with greenish-brown spots of various sizes and shapes on a red background to improve aesthetics and satisfy consumer preferences At least the amount of firewood required for the main fire in the firing compartment located above the firing compartment located below the There is an effect of providing a method for manufacturing a porcelain having a greenish-brown spot pattern formed.

Third, when manufacturing porcelain with greenish-brown spots of various sizes and shapes on a red background to improve aesthetics and satisfy consumer preferences, the time the firearm stays in the empty compartment 124 is relatively long, so Provides a method for manufacturing ceramics with greenish-brown spots of various sizes and shapes on a red background, which reduces leakage of firearms in the firing chamber and consequently reduces heat loss due to the relatively slow discharge of has the effect of

Fourth, when manufacturing porcelain with greenish-brown spots of various sizes and shapes on a red background to improve aesthetics and satisfy consumer preferences, there is no risk of fire in the firing compartment leaking out through the fire opening. It is effective to provide a method for manufacturing ceramics in which greenish-brown spots of various sizes and shapes are formed on a red background that does not pose a risk to the health of the body, including the human eye, who visually checks the fire in the firing chamber.

1 is a flowchart of a method of manufacturing ceramics in which greenish-brown spots of various sizes and shapes are formed on a red background according to an embodiment of the present invention.
2 is a flowchart according to an embodiment of the forming step of the ceramic molding of FIG. 1 .
3 is a flowchart according to another embodiment of the forming step of the ceramic molding of FIG. 1 .
FIG. 4 is a photograph of a porcelain molding before being molded and dried in the porcelain molding molding step of FIG. 1 .
5 is a photograph showing that the ceramic molding of FIG. 4 is first oiled and roasted.
FIG. 6 is a photograph of ceramics that have been second-glazed and sambal-grilled in the method for manufacturing ceramics in which greenish-brown spots of various sizes and shapes are formed on a red background according to an embodiment of the present invention of FIG. 1 .
7 and 8 show a cross-sectional view and a plan view of a firewood kiln for firing ceramics according to an embodiment of the prior art used in the method for manufacturing porcelain in which green-brown spots of various sizes and shapes are formed on the red background of FIG. 1; .
9 is a cross-sectional view of a firewood kiln for firing ceramics according to another embodiment of the prior art used in the method for manufacturing porcelain in which greenish-brown spots of various sizes and shapes are formed on the red background of FIG. 1 .
FIG. 10 is a plan view of FIG. 9 .
11 is a cross-sectional view of the firewood kiln for firing the ceramics of FIG. 9 .
12 shows a plan view of FIG. 11 .
13 is a cross-sectional view of a multi-stage pipe device embedded in the base of the firewood kiln for firing the ceramics of FIG. 11 and supplying the fire generated by the preheating of the barrel to the plurality of firing compartments without heat loss.
Fig. 14 is a left side view of the multi-stage pipe apparatus of Fig. 13;

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. However, this is not intended to limit the technology described in the present invention to specific embodiments, and it is to be understood that various modifications, equivalents, and/or alternatives of the embodiments of the present invention are included. In connection with the description of the drawings, like reference numerals may be used for like components.

In addition, expressions such as "first," "second," used in the present invention can modify various elements regardless of order and/or importance, and in order to distinguish one element from another element, It is used only and does not limit the corresponding components. For example, 'first part' and 'second part' may represent different parts regardless of order or importance. For example, without departing from the scope of the rights described in the present invention, a first component may be referred to as a second component, and similarly, the second component may also be renamed as a first component.

In addition, the terms used in the present invention are used only to describe specific embodiments, and may not be intended to limit the scope of other embodiments. The singular expression may include the plural expression unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meanings as commonly understood by one of ordinary skill in the art described in the present invention. Among the terms used in the present invention, terms defined in a general dictionary may be interpreted with the same or similar meaning as the meaning in the context of the related art, and unless explicitly defined in the present invention, ideal or excessively formal meanings is not interpreted as In some cases, even terms defined in the present invention cannot be construed to exclude embodiments of the present invention.

Hereinafter, an exemplary embodiment of the present invention for solving the above problems in conjunction with the accompanying drawings will be described.

1 is a flowchart of a method for manufacturing porcelain in which greenish-brown spots of various sizes and shapes are formed on a red background according to an embodiment of the present invention, and FIG. 2 is a flowchart according to an embodiment of the forming step of the porcelain molding of FIG. , FIG. 3 is a flowchart according to another embodiment of the porcelain molding forming step of FIG. 1 , and FIG. 4 is a photograph of the porcelain molding before being molded and dried in the porcelain molding molding step of FIG. 1 , FIG. 5 is a photograph showing that the ceramic molding of FIG. 4 has been first glazed and roasted, and FIG. 6 is a ceramic manufacturing method in which green-brown spots of various sizes and shapes are formed on a red background according to an embodiment of the present invention of FIG. This is a photo of pottery that has been second-glazed and sambal-grilled in

1 to 6, the method for manufacturing porcelain in which greenish-brown spots of various sizes and shapes are formed on a red background according to an embodiment of the present invention includes a porcelain molding forming step (S1), a rod barrel preheating step (S2), It includes the initial stage (S3), the first glazing stage (S4), the chaebol stage (S5), the secondary lubrication stage (S6), the sambal stage (S7), and the cooling chamber cooling and porcelain withdrawal stage (S8).

In the ceramic molding forming step (S1), a ceramic molding is formed using a ceramic raw material. In one embodiment, the ceramic molding molding step (S1) is 70% by weight of white clay and 30 prepared by sieving a 50 mesh sieve. a pottery raw material preparation step (S1-1) of preparing a pottery raw material composed of 70 wt% of an earthen material consisting of pink clay of weight% and 30 wt% of water; A ceramic-shaped molding forming step (S1-2) of mixing, stirring, kneading, and molding the ceramic raw material to form a ceramic-shaped molding; and a drying step (S1-3) of naturally drying the molded porcelain-shaped molding for 4 to 5 days so as to have a moisture content of 5 to 7%. Here, since the ceramic raw material is composed of 70% by weight of an earthen material consisting of 70% by weight of white clay and 30% by weight of pink clay and 30% by weight of water, the porcelain-shaped molding to be molded takes on a pink color. In addition, prepared white clay and clay are obtained by filtering and removing impurities by sieving with a 50 mesh sieve, and they are composed of fine and dense particles without impurities, and thus the porosity is lowered when molding into a ceramic-shaped molded product. In the drying step (S1-3), the ceramic-shaped molding is naturally dried and ready to be put into a firewood kiln for firing ceramics.

In another embodiment, between the forming step (S1-2) and the drying step (S1-3) of the pottery-shaped molding, the pottery using a technique including at least one of embossing, engraving, opening, ironing, and regression It further includes the step of putting a pattern in the shape molding. Here, the embossing is a technique that leaves the pattern to be displayed on the surface of the porcelain as it is, and cuts the periphery to make the part stand out, the engraving is a technique to scrape the surface with a sharp engraving knife, etc. In addition, cheolhwa refers to the technique of drawing patterns on porcelain moldings using a brush, while cheolhwa refers to the process of mixing black and white clay in water, drawing a pattern as if painting with ink, and then glazing it. It becomes possible to insert a pattern into the porcelain-shaped molding using a technique comprising one or more of openwork, ironwork, and engraving.

In the bongtong preheating step (S2), the firewood kiln for porcelain firing including a bongtong 110 through which fire can be sequentially delivered through the grill 150 and a plurality of firing compartments 120, 121, 122, 123. (110) is preheated. Here, the firewood kiln for firing the ceramics may be any type of firewood kiln for firing the ceramics including the conventionally presented bontong 110 and the plurality of firing compartments 120 , 121 , 122 and 123 . According to this, by preheating the bongtong 110 , the fire generated in the bongtong 110 is sequentially transferred to the plurality of firing compartments 120 , 121 , 122 , and 123 through the grill 150 , and the plurality of firing compartments 120 , 121, 122, 123) can be preheated.

In the unglazing step (S3), the molded porcelain molding is unglazed at a temperature of 800° C. in the firing compartments 120, 121, 122, and 123 of a firewood kiln for firing ceramics. for breastfeeding In other words, even if the molding process is complete, the ceramic molding has the weakness of being easily cracked and destroyed even when it is wetted with water or given a slight impact, so the strength can be increased by vitrifying the surface of the ceramic molding. In addition, in the unglazed state than in the dry state, the ceramic molded article is more firmly attached between the particles and the pores are smaller, so that it is not broken even by any impact. In addition, unglazing has the advantage of being able to predict in advance the case of failure in chaebol grilling, in addition to increasing the strength of ceramic moldings and ease of application.

In the first glazing step (S4), the unglazed porcelain is taken out from the firewood kiln for firing the porcelain and a primary glaze is applied to the main body of the unglazed porcelain. As such, the primary glaze applied to the main body of unglazed porcelain through primary glazing is an important factor determining the color and feel of porcelain, and acts like a garment. This primary glaze serves to prevent leakage and enhance durability by vitrifying the unglazed porcelain surface.

In addition, since the primary glaze is applied over the entire unglazed porcelain, the ground color of the porcelain is exhibited. In this embodiment, the primary glaze is 25% by weight of feldspar powder, 20% by weight of silicate powder, 20% by weight of kaolin powder, clay so that the chaebol-roasted porcelain has a red color as a ground color by the primary glaze. It consists of a glaze raw material consisting of 15% by weight of powder, 15% by weight of iron oxide powder, and 5% by weight of manganese powder, and water. According to this, the porcelain that has been first glazed and chaebol-roasted has a red background color.

The feldspar is divided into feldspar feldspar, ilealite and feldspar, and feldspar or feldspar is added to clay to dissolve clay or siliceous to give strength, and feldspar is mainly added to glaze to form silica and limestone ( In this embodiment, feldspar refers to feldspar stone by helping the melting of non-plastic material) and fusion of the glaze to the surface of white clay or clay. The feldspar powder preferably accounts for 25% by weight in the primary glaze to help the primary glaze to be fused to the surface of the main body of the unglazed porcelain made of white clay and clay. The feldspar powder, when it is more than 25% by weight, is sufficient to help the primary glaze to be fused, but the chemical resistance of the primary glaze applied to the surface of the body part of the unglazed porcelain after the primary lubrication is low. The gloss deteriorates, and when it is less than 25% by weight, the primary glaze is insufficient to help the primary glaze to be fused to the surface of the body part of the unglazed porcelain, so that the primary glaze is applied to the surface of the body part of the unglazed porcelain. A portion that is not fused may be partially generated.

The silica stone is mainly composed of SiO ₂ , which serves as a framework for the primary glaze and forms a glassy substance. If the weight ratio of silicate powder in the primary glaze is increased, the melting temperature is increased (the degree of fire resistance is increased), the hardness and strength are increased, and the expansion coefficient is decreased. It is preferably weight %. If the silica powder exceeds 20% by weight, the chaebol roasting may have to be performed at a higher temperature than 800°C, and if it is less than 20% by weight, the coefficient of expansion of the primary glaze may increase and at the same time after the primary glazing When roasting chaebols in the chaebol stage of

When the kaolin powder exceeds 20% by weight, cracks may occur due to shrinkage that occurs so finely that it is invisible to the naked eye when drying after the first lubrication, and this may cause curling during firing. Since the component serves as an adhesive, curling may occur due to a decrease in the component serving as an adhesive, so the use of the kaolin powder is preferably 20% by weight.

If the amount of the clay powder is more than 15% by weight, the dry strength of the glaze can be increased, and if it is less than 15% by weight, the adhesion to the unglazed ceramics may be weakened after the first application, so the use of the clay powder is 15% by weight. it is preferable

If the iron oxide powder is more than 15% by weight, an opaque film or pinhole phenomenon occurs, and if it is less than 15% by weight, the color of the first glaze changes to a black or yellow color instead of red. It is preferred that the amount of silver is 15% by weight.

The manganese powder gives a brownish color. If it exceeds 5% by weight, blister-like blistering occurs on the surface of the first glaze, and if it is less than 5% by weight, the color of the first glaze may be brown when it is 4% by weight in condensed milk. Since it turns purple or purple in alkaline oil, it is preferable that the manganese powder be used in an amount of 5% by weight.

In the chaebol step (S5), the porcelain coated with the primary glaze is roasted at a temperature of 800° C. in the firing compartments 120, 121, 122, and 123 of the firewood kiln for firing the ceramics. This chaebol-grilling is made at a temperature of 800° C. in the firing compartments 120, 121, 122, and 123, and the ceramics coated with the primary glaze are fired. carry out with Oxidative firing is a method in which a lot of air is introduced into the firing compartments (120, 121, 122, 123) to clear the inside of the kiln and fired. , 121, 122, 123) to incompletely burn the firewood by introducing less air into it. Neutral plasticity refers to an intermediate state between oxidation firing and reduction firing. In this embodiment, although the firing of the ceramics performed in the chaebol step S5 is performed by oxidation firing, the present invention is not limited thereto, and in another embodiment, the firing of the ceramics performed in the chaebol step S5 is reduced firing or neutral A configuration made of firing is also possible. When the above-mentioned chaebol grilling is performed, the porcelain coated with the primary glaze is made in a sintered state, that is, the porcelain coated with the primary glaze is magnetized and hardened.

In the second glazing step (S6), the second glaze is applied to the main body of the chaebol-roasted porcelain by taking out the chaebol-roasted porcelain from the firewood kiln for firing the porcelain. In this way, the primary glaze is applied and the secondary glaze is applied to the chaebol-grilled porcelain, so that the secondary glazed porcelain has an initial pattern due to the application of the secondary glaze on the ground color. In this embodiment, the secondary glaze is 36 weight of feldspar powder so that, by the secondary glaze, the porcelain with the secondary glaze and sambal-grilled forms greenish-brown spots of various sizes and shapes on the red background. %, silica powder 27% by weight, zinc powder 12% by weight, talc powder 15% by weight, and barium carbonate powder 10% by weight; and water. According to this, the pottery that has been glazed and grilled three times will form greenish-brown spots of various sizes and shapes on a red background.

In the sambal step (S7), the porcelain coated with the secondary glaze is sambal-grilled at a temperature of 1,240° C. in the firing compartments 120, 121, 122, and 123 of the firewood kiln for firing the ceramics. The secondary glaze is applied to the porcelain coated with the secondary glaze on the chaebol porcelain, and there is an advantage of displaying various colors by firing three sets at a temperature of 1,240°C.

The feldspar is divided into feldspar feldspar, ilealite, and feldspar, and feldspar or feldspar is added to clay to dissolve clay or siliceous to give strength, and feldspar is mainly added to glaze to give a greenish-brown color to silicate , to help melt limestone (non-plastic material) to help the glaze to adhere to the white clay or clay surface. In this embodiment, feldspar refers to feldspar. The feldspar powder preferably accounts for 36% by weight of the secondary glaze in order to help the secondary glaze to be fused to the surface of the main body of the unglazed porcelain made of white clay and clay. The feldspar powder, when it is more than 36% by weight, is sufficient to help the secondary glaze to be fused, but the chemical resistance of the secondary glaze applied to the surface of the body part of the chaebol-roasted porcelain after the secondary lubrication is If it is less than 36% by weight, the secondary glaze is insufficient to help the secondary glaze to be fused to the surface of the body part of the chaebol-roasted porcelain, so that the secondary glaze is less than 36 wt% A portion that is not fused to the surface of the body portion is partially generated.

Since the silica SiO ₂ is a main component of the silica stone, it serves as a framework for the secondary glaze and forms a glassy substance. If the weight ratio of silicate powder in the secondary glaze is increased, the melting temperature is increased (the degree of fire resistance is increased), hardness and strength are increased, and the expansion coefficient is decreased. It is preferably weight %. If the silica powder exceeds 27 wt%, the sambal-grilled may have to be performed at a higher temperature than a temperature of 1,260 °C, and if less than 27 wt%, the sambal-grilled at 1,240 ° C. It should be carried out at a temperature lower than that of

The zinc usually uses a lot of zinc oxide, but it is added to the secondary glaze, and depending on the amount added, it can represent a pastel tone of a brown type including greenish brown or a brown type including a greenish brown. It lowers the glaze and forms a more complete glaze surface. When 12 wt% of zinc is used in the secondary glaze, good fire resistance and whiteness are obtained. However, when zinc is used in excess of 12% by weight in the secondary glaze, crawling or cracking occurs in the secondary glaze because zinc has a high shrinkage in a wide temperature range, and zinc in the secondary glaze is 12% by weight If it is used less than, the melting temperature of the secondary glaze may be lowered.

When the proportion of the talc powder in the secondary glaze exceeds 15% by weight, the opacity and glossiness of the secondary glaze increase, so it is not suitable for use in ceramics expressing transparency and crude properties, and when it is less than 15% by weight The use of the talc powder is preferably 15% by weight because the secondary glaze shrinks a lot and cracks may occur.

Since the barium carbonate has low reactivity and high fire resistance, if the proportion of the secondary glaze exceeds 10% by weight, the oil level does not melt and cracks easily occur in the secondary glaze, and if it is less than 10% by weight, the secondary glaze Since the glossiness of the glaze deteriorates, it is preferable that the barium carbonate be used in an amount of 10% by weight.

In one embodiment, the primary glaze is applied to the body portion of the unglazed porcelain at a 35 degree glaze, and the secondary glaze is applied to the body portion of the unglazed porcelain at a 40 degree glaze. Here, the baud rate is expressed as a scale value when the baume weight is floated on the liquid to measure the specific gravity of the liquid. It just shows that they are different. For example, 35 degrees baud indicates that 67% dry matter, that is, the moisture content of the primary glaze is 33%, and 40 degrees baume indicates that 76% dry matter, that is, the moisture content of the secondary glaze is 24%. . At this time, the main body portion of the unglazed and chaebol-roasted ceramics is immersed in the primary glaze, and the surface of the primary glaze is immersed in the secondary glaze to perform the application. And, since the viscosity of the secondary glaze is higher than that of the primary glaze for the body part of the chaebol-grilled porcelain, the color of the primary glaze applied to the body part of the unglazed porcelain is higher than the color of the chaebol-grilled porcelain. The color of the secondary glaze applied to the surface of the primary glaze applied to the porcelain body is darker. In addition, feldspar and zinc may exhibit a greenish-brown color, and the concentration of the secondary glaze is in a non-homogeneous state. Therefore, when the secondary glaze melts on the surface of the primary glaze and the primary glaze that has been chaebol-grilled on the body part of the unglazed porcelain, it does not agglomerate and flow down, but agglomerate in various sizes and shapes in various places It forms greenish-brown spots in the shape of

In another embodiment, when the porcelain to which the primary and secondary glaze is applied is porcelain, the glaze raw material and water are composed of a ratio of 60% by weight: 40% by weight, and the porcelain to which the primary and secondary glazes are applied is porcelain. , the glaze raw material and water are composed of a ratio of 40% by weight: 60% by weight. When the porcelain to which the primary and secondary glazes have been applied is porcelain, the ratio of the glaze raw material is relatively higher than that of water to better express the color and feel of the porcelain to which the primary and secondary glazes have been applied, resulting in an aesthetic feeling of porcelain. contribute to improvement In addition, when the porcelain to which the primary and secondary glazes have been applied is pottery, the ratio of water is relatively higher than that of the glaze raw material, so that among the porcelain to which the primary and secondary glazes are applied, it is aesthetically pleasing in pottery such as pottery, interior tiles, and sanitary ware. It contributes to the ease of application rather than improving the feeling.

In the step (S8) of cooling the firing compartment and taking out the ceramics, the kiln is cooled naturally for 4-7 days, then the door is opened and the finished ceramics are taken out of the firing compartment.

In this embodiment, the firewood kiln for firing the ceramics, the firewood inlet 111 is formed in the bontong (110); a plurality of firing compartments (120, 121, 122, 123) in which an entrance door 130 having a firewood inlet 131 formed therein is installed in the entrance and a fire viewing hole 140 is formed; A semi-elliptical hollow space 124 having a streamlined inner wall surface for guiding the fire to flow without a vortex into the stack; a stack 125' connected to the empty compartment 124; a chimney 126' connected to the stack 125; a plurality of slits (150) forming a passage through which fire passes between the bontong (110) and the plurality of firing compartments (120, 121, 122, 123); and a multi-stage pipe device 300 embedded in the foundation and supplying fire generated by preheating of the bongtong 110 to the plurality of firing compartments 120, 121, 122, and 123 without heat loss. (110) and the plurality of firing compartments (120, 121, 122, 123) and the empty compartment 124 are below in any one of the inclined ground foundation, the inclined concrete foundation, and the inclined reinforced concrete foundation 210 Although illustrated and described as being formed sequentially from above, the present invention is not limited thereto, and in another embodiment, a round kiln is formed using soil and bricks, and then inside the kiln (fired compartment) A firewood kiln for porcelain firing that inserts the porcelain to be fired, preheats the kiln with a stick, lights a fire inside the kiln, and blocks the entrance of the kiln with soil or fire bricks to prevent the fire from escaping to the outside. A configuration is also possible, and as shown in FIGS. 4 to 7 , an empty space 20 is installed between the bar tube 10 and the firing chamber 30, and the empty space serves as a second bar tube and is formed by two stick tubes. By preheating the kiln, it is also possible to configure a firewood kiln for firing ceramics that can shorten the preheating time and save fuel.

11 is a cross-sectional view of the firewood kiln for firing the ceramics of FIG. 9, FIG. 12 is a plan view of FIG. 11, and FIG. 13 is embedded in the base of the firewood kiln for firing the ceramics of FIG. It is a cross-sectional view of the multi-stage pipe device for supplying the fire generated by the heat loss to the plurality of firing compartments without heat loss, and FIG. 14 is a left side view of the multi-stage pipe device of FIG. 13 .

11 to 14, the firewood kiln for firing porcelain applied in the method for manufacturing porcelain in which green-brown spots of various sizes and shapes are formed on a red background according to an embodiment of the present invention is a bontong 110, a plurality of It includes a firing compartment (120, 121, 122, 123), a semi-elliptical hollow compartment (124), a stack (125'), a chimney (126'), a slit 150, and a multi-stage pipe device (300).

In a firewood kiln for firing ceramics consisting of a bontong, a plurality of firing compartments, a stack, and a chimney formed sequentially from bottom to top in any one of the inclined ground foundation, the inclined concrete foundation, and the inclined reinforced concrete foundation 210 ,

The firewood kiln for porcelain firing applied in the method for manufacturing porcelain in which greenish-brown spots of various sizes and shapes are formed on a red background according to an embodiment of the present invention is formed on the foundation 210, and the foundation is a reinforced concrete structure It is formed to a thickness of about 60 cm, and here a door frame rail (not shown) for supporting the locking door 113 of the bongtong, a door support 135, and an anchor for wire binding (not shown) are integrally formed.

The bongtong 110 is a place where firewood is put in to preheat the entire kiln, and as shown in FIGS. 7 and 8, a configuration in which only the firewood inlet is formed on the lower side of the bongtong 110 is possible, and FIG. , 10, it is also possible to install a door 113 made of iron that can be opened and closed in the top and bottom to the firewood inlet 111 formed on the lower side. The opening and closing door 113 is easier to operate compared to opening and closing the firewood inlet with a conventional firebrick or loess, and it is easy to control the air flowing into the firewood kiln, Waste generation can be prevented. The opening and closing door is an iron plate that moves up and down between two pillars installed on the foundation 210, and the moving means is a conventional configuration that can be used using a pulley made of a gear or a connected wire, and a detailed description thereof will be omitted. And to form the anti-jacket end 112 in two stages in the front part of the front spear of the bongtong.

In the plurality of firing compartments 120 , 121 , 122 , and 123 , a door 130 having a firewood inlet 131 is installed at the entrance, and a fire viewing hole 140 is formed. The firing compartments are compartments in which actual objects enter and are fired. The wall and roof are made of fire bricks, and the boundary surfaces of the wall and roof are stacked alternately to interlock with each other to prevent cracks between the wall and the roof as much as possible.

In addition, on the boundary surface of each firing compartment, there are formed a grill 150, a passage through which the fire passes, and a fire viewing hole 140 that can check the state and temperature of the equipment being fired, and the temperature of the firing compartment is set inside the fire viewing hole. Pyrometric cones (manufactured by Allton Ceramics) for measurement are placed, and on one wall, a door 130 at an entrance that can put a piece of equipment, and a pressure control hole 180 on the ceiling are formed on the left and right, and inside the kiln A thermocouple (not shown) for measuring the temperature is installed and is connected to the external temperature display device 190 . Here, the pyrometric cone or the temperature display device 190 may be omitted in other embodiments.

The above-mentioned shank forms a passage through which fire passes between the bontong 110 and the plurality of firing compartments 120, 121, 122, and 123. and size can be adjusted.

In this embodiment, the door 130 is formed in the doorway of the side wall of the firing compartments, and is laminated with fire bricks 132 inside the door made of iron, and a firewood inlet 131 is formed in the center. In addition, the door is coupled to the support 135 fixed to the base by a hinge 136 and is rotatably opened and closed. And the door is easy to open and close by forming a support to open toward the lower part of the bongtong, that is, the kiln. The glass fiber 133 is a sealing means to prevent the discharge of fire. However, the present invention is not limited to this configuration, and in another embodiment, a configuration in which the door 130 is laminated with fire bricks is also possible.

The door has a width of 60 to 70 cm and a height of 90 to 95 cm, which allows free entry and exit compared to the conventional entrances with a width of 40 to 50 cm and a height of 60 to 70 cm, and has the advantage of firing large-sized ceramics. It is possible to prevent the generation of labor or waste by opening and closing the door with bricks or loess soil.

In addition, by forming the door with fire bricks, the insulation of the kiln can be improved, saving fuel and improving the quality of ceramics, and can be used semi-permanently. Durability can also be improved.

In this embodiment, the pressure regulating hole 180 is installed one on each left and right of the upper part of each firing compartment of the kiln, and the pressure regulating hole 181 is installed in the pressure regulating hole, but the present invention is not limited thereto. In the embodiment, the configuration in which the pressure control hole 180 and the pressure control hole 181 are omitted is also possible.

The pressure regulating hole 180 is to prevent cracks in the kiln from occurring due to pressure generation due to heating inside the kiln. pressure is regulated.

By this action, it is possible to prevent cracking due to pressure or thermal expansion of the wood kiln, thereby preventing heat loss or cold wave of ceramics.

The glass fiber 182 is a sealing means for preventing the discharge of fire.

The summer couple is a high-temperature thermometer, which is installed at a height of about 60 cm in the middle of the firing compartment to accurately measure the temperature inside the kiln, and is connected to the external temperature display device 190 .

By scientifically measuring the method of measuring the internal temperature of the conventional firewood kiln by the above temperature measuring device by the change of the color of the internal fire, the internal temperature can be easily controlled and the perfection of ceramics can be improved by firing. It can also contribute to fuel saving, and is used together with the pyrometric cone to control the internal temperature of the kiln and to measure the firing temperature of ceramics.

In the present invention, the structure of the ceiling and wall of the firewood kiln is composed of a fire brick layer 200, a glass fiber layer 201, a fire earth layer 204, a wire 202, and a loess layer 203 from the inside, thereby providing insulation and firewood. It is made to prevent cracking and improve durability of the kiln, but in another embodiment, the structure of the ceiling and the wall of the wood kiln may be configured only with a double structure of refractory brick and loess.

For the fire brick layer 200, B7 bricks with excellent fire resistance and insulation are used for the ceiling, and SK series (SK34) with excellent strength is used for walls and gratings. make it a structure

The glass fiber layer 201 further improves the heat insulation of the firewood kiln, and is preferably a nonwoven fabric having a thickness of about 3 to 5 cm as a configuration to prevent expansion of the kiln. If it is less than 3 cm, the thermal insulation properties are poor, and if it is more than 5 cm, there is a risk of cracking due to the elasticity of the glass fiber cloth on the outside of the kiln.

In the ceiling portion of the outside of the glass fiber layer 201, refractory bricks are arranged in the shape of a field, and then the refractory earth is filled inside, and the refractory earth layer 204 is formed to heat insulating properties of the firewood kiln for firing ceramics. to improve

On the outside of the refractory earth layer 204, after installing 2-3 angles of about 1 m in length in each firing compartment, they are bound with a wire 202, and the wire is bound with an anchor formed on the base 210 for firewood. Prevents cracks in the kiln by preventing the kiln from expanding due to heat.

On the outside of the refractory earth layer 204 and the wire 202, a normal loess layer 203 is formed to a thickness of 6 to 10 cm to complete the walls and ceiling of the firewood kiln.

In addition, an iron opening and closing door 190 is installed in the firewood inlet 111 of the bontong to facilitate opening and closing.

The empty compartment 124 has a semi-elliptical shape with a streamlined inner wall surface for inducing the fire to flow into the stack without swirling, so that the fire flows into the stack without swirling, and it is adjacent to the front left inner wall of the empty cell and reverses ' Install the S'-shaped fire flow control wall 170'.

The reverse 'S'-shaped fire air flow control wall 170' has a high speed in the stack where the fire flowing through the grill from each firing compartment is installed in the center, affecting each firing compartment as well. In the central part of the unit, the flow of fire is fast, and at the edge, the flow is slow, which causes a temperature difference. Therefore, an inverted 'S'-shaped fire flow control wall 170' is installed adjacent to the front left inner wall of the empty space. By making the residence time of the fire in the empty compartment 124 relatively long, it is possible to reduce the leakage of the fire in the firing compartment due to the relatively slow discharge of the fire and thereby reduce the heat loss, which contributes to the improvement of the quality of ceramics. do.

The stack 125 ′ is connected to the empty compartment 124 , and the chimney 126 ′ is connected to the stack 125 . can be discharged to the outside.

The multi-stage pipe device 300 is embedded in the foundation and supplies fire generated by preheating of the rod tube 110 to the plurality of firing compartments 120 , 121 , 122 , and 123 without heat loss.

In one embodiment, the multi-stage pipe device 300, one end of the bongtong 110 passing through the anti-recurring end 112 of the rod communicates with the inside of the rod tube 110, the firing compartment 120 of the horizontal a first pipe 311 of a cylindrical cylindrical shape having a length corresponding to the length in the direction; It has a smaller diameter than the diameter of the first pipe 311 and is located concentrically and spaced apart from each other inside the first pipe 311, but the plurality of firing compartments 120, 121, 122, 123 is horizontal a plurality of cylindrical-cylindrical pipes each extending from the first pipe 311 by a length in the direction; and a plurality of preheater supply pipes connected to the first pipe 311 and in communication with each of the plurality of pipes and extending vertically upwardly protruding into the plurality of firing compartments 120 , 121 , 122 , 123 . including, wherein the plurality of pipes have a smaller diameter than the diameter of the first pipe 311 , are located concentrically inside the first pipe 311 , and have a length in the horizontal direction of the firing compartment 121 . a second pipe 312 of a cylindrical cylindrical shape configured to extend from the first pipe 311 as much as possible; It has a smaller diameter than the diameter of the second pipe 312, is located concentrically inside the second pipe 312, and extends from the second pipe 312 by the length of the firing compartment 122 in the horizontal direction. A third pipe 313 of a cylindrical cylindrical shape is configured; and a diameter smaller than that of the third pipe 313 , located concentrically inside the third pipe 313 , and extending from the third pipe 313 by the horizontal length of the firing compartment 123 . and a fourth pipe 314 of a cylindrical and cylindrical shape configured by The protruding first preheater supply pipe (311P); a second preheater supply pipe (312P) connected in communication with the second pipe (312) and extending vertically upwardly protruding into the firing compartment (121); a third preheater supply pipe 313P connected in communication with the third pipe 313 and extending vertically upwardly protruding into the firing compartment 122; and a fourth preheater supply pipe 314P connected in communication with the fourth pipe 314 and extending vertically upward to protrude into the firing compartment 123 .

According to the above configuration, the pipe of the multi-stage pipe device 300 is configured in a plurality, that is, in multiple stages, so that air with low thermal conductivity serves as an insulating material, so that the heat loss of the fire of the pipe inside is eliminated, and the pipe close to the bongtong It is possible to eliminate the temperature difference between the fire and the fire coming from the distant pipe, and through the slit ( 150 ), the fire in the lower firing compartment can be transferred to the upper firing compartment, so that When performing the main fire in the firing compartment after preheating, when the input amount of firewood required for the main fire is the same in the firing compartment located below and in the firing compartment located above, the internal temperature of the entire firing compartment is the same within the same time without heat loss It can be raised to a set temperature.

In another embodiment, the first cross-sectional area (S1) minus the inner cross-sectional area of the second pipe (312) from the inner cross-sectional area of the first pipe (311); a second cross-sectional area (S2) excluding the inner cross-sectional area of the third pipe (313) from the inner cross-sectional area of the second pipe (312); a third cross-sectional area S3 excluding the inner cross-sectional area of the fourth pipe 314 from the inner cross-sectional area of the third pipe 313; The size of the fourth cross-sectional area S4 of the inner cross-sectional area of the fourth pipe 314 is the same. With this configuration, the amount of fire generated and introduced from the bongtong 110 is equally accommodated. The amount of fire flowing into the compartments 120 , 121 , 122 , and 123 may be the same, and accordingly, the inside of the firing compartments 120 , 121 , 122 , and 123 may be raised and preheated to the same temperature.

The stack 125' and the chimney 126' are connected in communication with the side surface of the empty compartment 124 and have an inverted 'S' shape that is smoothly inclined upwardly to the right adjacent to the front left inner wall surface of the empty compartment. The fire flow control wall 170' is installed, which is configured as such. The residence time of the firearm may be prolonged, which in turn may lead to an extended residence time in the firing compartments 120 , 121 , 122 , 123 .

The fire viewing hole 140 penetrates the walls of the plurality of firing compartments 120, 121, 122, and 123 to form a window, and the plurality of firing compartments 120, 121, 122, and 123 are formed in the window. It is equipped with heat-resistant glass that can withstand the fire caused by the bonfire. According to this configuration, there is no risk of the fire in the firing compartment leaking out through the fire opening hole, and there is also no risk to the health of the body including the eyes of a person who visually checks the fire in the firing compartment.

In another embodiment, the firewood kiln for firing the firewood of the firewood saving type for the main fire of the firing compartment of the present invention is a plurality of firings to measure the humidity in the plurality of firing compartments (120, 121, 122, 123) Hygrometers installed in each compartment (120, 121, 122, 123); It further includes a humidity display device connected to the hygrometer installed outside the plurality of firing compartments (120, 121, 122, 123) to display the measured humidity.

By scientifically measuring the internal humidity of the conventional firewood kiln by the hygrometer and humidity display device, it is easy to control the internal humidity and completeness by firing of ceramics. It can increase the temperature and is used to measure and control the internal humidity of the kiln.

Hereinafter, the process of firing white porcelain using a wood kiln for firing ceramics of the present invention will be described with reference to Example 1.

1. Porcelain molding forming step (S1)

Prepare a pottery raw material consisting of 70 wt% of an earthen material consisting of 70 wt% of white clay and 30 wt% of pink clay prepared by sifting through a 50 mesh sieve, and 30 wt% of water, and mixing and stirring the ceramic raw material, kneading, and molding to form a porcelain-shaped molding, and air-drying the molded porcelain-shaped molding to a moisture content of 6% for 4 days.

2. Bongtong preheating step (S2)

In the bongtong preheating step (S2), the firewood kiln for porcelain firing including a bongtong 110 through which fire can be sequentially delivered through the grill 150 and a plurality of firing compartments 120, 121, 122, 123. (110) was preheated. Here, as the firewood kiln for firing ceramics, the firewood inlet 111 is formed, the bongtong 110; a plurality of firing compartments (120, 121, 122, 123) in which an entrance door 130 having a firewood inlet 131 formed therein is installed in the entrance and a fire viewing hole 140 is formed; A semi-elliptical hollow space 124 having a streamlined inner wall surface for guiding the fire to flow without a vortex into the stack; a stack 125' connected to the empty compartment 124; a chimney 126' connected to the stack 125; a plurality of slits (150) forming a passage through which fire passes between the bontong (110) and the plurality of firing compartments (120, 121, 122, 123); and a multi-stage pipe device 300 embedded in the foundation and supplying fire generated by preheating of the bongtong 110 to the plurality of firing compartments 120, 121, 122, and 123 without heat loss. (110) and a plurality of firing compartments (120, 121, 122, 123) and empty compartments 124 were used in a firewood kiln for firing ceramics in which the slanted reinforced concrete foundation 210 is sequentially formed from bottom to top.

3. Initial stage (S3)

In the priming step (S3), the molded porcelain molding was primed at a temperature of 800° C. in the firing compartments 120, 121, 122, and 123 of a firewood kiln for firing ceramics.

4. 1st lactation step (S4)

In the first glazing step (S4), the unglazed porcelain was taken out from the firewood kiln for firing the porcelain and a primary glaze was applied to the main body of the unglazed porcelain. At this time, the primary glaze is a glaze raw material consisting of 25% by weight of feldspar powder, 20% by weight of silicate powder, 20% by weight of kaolin powder, 15% by weight of clay powder, 15% by weight of iron oxide powder, and 5% by weight of manganese powder, and water was composed The first glaze was applied to the main body of the unglazed porcelain with a 35 degree bauble.

5. Chaebol Stage (S5)

In the chaebol step (S5), the porcelain coated with the primary glaze was roasted at a temperature of 800° C. in the firing compartments 120, 121, 122, and 123 of the firewood kiln for firing the ceramics. Oxidative firing was performed during chaebol grilling.

6. Second lubrication step (S6)

In the second glazing step (S6), the second glaze was applied to the main body of the chaebol-roasted porcelain by taking out the chaebol-roasted porcelain from the firewood kiln for firing the porcelain. Here, the secondary glaze is composed of a glaze raw material consisting of 36 wt% of feldspar powder, 27 wt% of silicate powder, 12 wt% of zinc powder, 15 wt% of talc powder, and 10 wt% of barium carbonate powder, and water. Here, the second glaze was applied to the body portion of the chaebol-grilled porcelain at a 40-degree bauble.

7. Three steps (S7)

In the sambal step (S7), the porcelain coated with the secondary glaze was sambal-roasted at a temperature of 1,240° C. in the firing compartments 120, 121, 122, and 123 of the firewood kiln for firing the ceramics.

8. Cooling the firing chamber and withdrawing ceramics (S8)

In the step (S8) of cooling the firing compartment and taking out the ceramics, the door was opened after the kiln was cooled naturally for about 6 days, and the finished ceramics were taken out of the firing compartment.

As a result of visual inspection of the exported porcelain, it was confirmed that the three-grilled porcelain had greenish-brown spots of various sizes and shapes on a red background.

In addition, as a result of visual inspection of the removed ceramics, blemishes were found at point 1, fine cracks and blemishes were found at point 2, and slight oxidation fire was found at point 4. Also, no cracks were found in the furnace during firing. As in the result of the above firing example, the conventional firewood kiln had a ceramic completion rate of 20% or less, but the present invention can achieve a ceramics completion rate of 95% or more, which is a remarkable improvement in productivity compared to the conventional conventional kiln. , the use of firewood can be reduced by less than half by shortening the firing time, and it is possible to reduce carbon dioxide and protect the environment by preventing the generation of waste such as loess (approximately 30kg*5=150kg per kiln door) due to the closure of the kiln. Ancillary effects can also be obtained, and it is a useful invention that can prevent cracks due to thermal expansion of the firewood kiln and can control the internal temperature and pressure, thereby improving the production of high-quality ceramics and the durability of the firewood kiln.

Although the present invention described above has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible by those skilled in the art. should be made clear. Accordingly, the true technical protection scope of the present invention should be construed by the appended claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

110: bongtong 120, 121, 122, 123: firing compartment
124: empty space 125': stack
126': chimney 130: entrance door
131: firewood inlet 140: fire viewing hole
150: cutlery 160: pottery table
210: reinforced concrete foundation 300: multi-stage pipe device
311: first pipe 311P: first preheater supply pipe
312: second pipe 312P: second preheater supply pipe
313: third pipe 313P: third preheater supply pipe
314: fourth pipe 314P: fourth preheater supply pipe
S1: Porcelain molding forming step S1-1: Porcelain raw material preparation step
S1-2: Porcelain-shaped molding forming step S1-3: Drying step
S2: Pre-heating stage S3: Initial stage
S4: 1st lactation stage S5: chaebol stage
S6: Second lactation stage S7: Three-fold stage
S8: Firing compartment cooling and porcelain withdrawal step

Claims (4)

A porcelain molding forming step (S1) of molding a porcelain molding using a porcelain raw material;
Bongtong preheating for preheating the bongtong 110 of the firewood kiln for firing ceramics including the bongtong 110 through which the fire can be sequentially transmitted through the spear ( 150 ) and a plurality of firing compartments (120, 121, 122, 123) step (S2);
A prime step (S3) of unglazing the molded porcelain molding at a temperature of 800° C. in the firing compartments (120, 121, 122, 123) of the firewood kiln for firing the ceramics;
a first glazing step (S4) of taking out the unglazed porcelain from the firewood kiln for firing the porcelain and applying a primary glaze to the main body of the unglazed porcelain;
a chaebol step (S5) of chaebol-roasting the porcelain coated with the primary glaze at a temperature of 800°C in the firing compartments (120, 121, 122, 123) of the firewood kiln for firing the porcelain;
a second glazing step (S6) of taking out the chaebol-roasted porcelain from the firewood kiln for firing the porcelain and applying a secondary glaze to the body portion of the chaebol-grilled porcelain;
Three-fold step (S7) of roasting the ceramics coated with the secondary glaze at a temperature of 1,240°C in the firing compartments (120, 121, 122, 123) of the firewood kiln for firing the ceramics; and
After cooling the kiln naturally for 4-7 days, the door is opened and the finished porcelain is taken out of the kiln, cooling the kiln and taking out the porcelain step (S8),
The primary glaze contains 25% by weight of feldspar powder, 20% by weight of silicate powder, 20% by weight of kaolin powder, 15% by weight of clay powder, and iron oxide powder so that the chaebol-roasted porcelain by the primary glaze forms a red background. It consists of a glaze raw material consisting of 15% by weight and 5% by weight of manganese powder, and water,
By the secondary glaze, the secondary glaze is 36 wt% of feldspar powder, 27 wt% of silicate powder, so that the porcelain with the secondary glaze oil and triple-grilled forms greenish-brown spots of various sizes and shapes on the red background. %, zinc powder 12% by weight, talc powder 15% by weight, and barium carbonate powder 10% by weight of glaze raw material, and water Way. According to claim 1,
The firewood kiln for firing the ceramics,
Bontong 110 having a firewood inlet 111 formed therein; a plurality of firing compartments (120, 121, 122, 123) in which an entrance door 130 having a firewood inlet 131 formed therein is installed in the entrance and a fire viewing hole 140 is formed; A semi-elliptical hollow space 124 having a streamlined inner wall surface for guiding the fire to flow without a vortex into the stack; a stack 125' connected to the empty compartment 124; a chimney 126' connected to the stack 125; a plurality of slits (150) forming a passage through which fire passes between the bontong (110) and the plurality of firing compartments (120, 121, 122, 123); and a multi-stage pipe device 300 embedded in the foundation and supplying fire generated by preheating of the bongtong 110 to the plurality of firing compartments 120, 121, 122, and 123 without heat loss. (110) and the plurality of firing compartments (120, 121, 122, 123) and the empty compartment 124 are below in any one of the inclined ground foundation, the inclined concrete foundation, and the inclined reinforced concrete foundation 210 A method of manufacturing ceramics in which greenish-brown spots of various sizes and shapes are formed on a red background, characterized in that they are formed sequentially from top to bottom. According to claim 1,
The primary glaze is applied to the body portion of the unglazed porcelain at a 35 degree glaze, and the second glaze is applied to the body portion of the chaebol-roasted porcelain at a 40 degree glaze. Various sizes and A method of manufacturing pottery with greenish-brown spots in the form. According to claim 1,
The ceramic molding forming step (S1),
A pottery raw material preparation step (S1-1) of preparing a pottery raw material comprising 70 wt% of an earthen material comprising 70 wt% of white clay and 30 wt% of pink clay prepared by sieving a 50 mesh sieve and 30 wt% of water;
A ceramic-shaped molding forming step (S1-2) of mixing, stirring, kneading, and molding the ceramic raw material to form a ceramic-shaped molding; and
Porcelain with greenish-brown spots of various sizes and shapes on a red background, characterized in that it includes a drying step (S1-3) of naturally drying the molded porcelain-shaped molding for 4 to 5 days so that the moisture content is 5 to 7%. manufacturing method.

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