JP2006258398A - Ceramic art kiln provided with bisque-firing chamber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceramic art kiln capable of bisque-firing by utilizing exhaust heat during actual firing simultaneously. <P>SOLUTION: This ceramic art kiln is composed of an actual firing part 1 having a combustion chamber 4 in a lower part, a bisque-firing part 2, and a partitioning plate 6 arranged to partition both parts from each other vertically. Temperature in a bisque-firing chamber 10 is controlled to become 700 to 800°C being proper temperature for bisque-firing while adjusting combustion gas 16 from an actual firing chamber 5 to be fed into the bisque-firing chamber by enlarging or contracting outlets of a ventilation exhaust hole 12 and a bisque-firing exhaust hole 13 by opening or closing an exhaust gas adjusting plate 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a ceramic pottery.

Traditionally, to complete a pottery work, mold it with clay, dry it, bake it in a pottery kiln or a kiln dedicated kiln, let it cool, apply glaze etc. It is common to go through a process. As mentioned above, ceramic works require two heating and cooling operations.

The heating work in ceramic art requires temperatures of 700 to 800 ° C. for unglazed baking and about 1200 ° C. for main baking. In addition, the work time is one day or more including cooling in the unglazed work, and one day or more is required for the main baking work. In addition, fuel that raises the temperature to each temperature is also required. Gas, oil, electricity, charcoal, etc. are used as fuel.

In the pottery kiln disclosed in Japanese Patent Application No. 2001-13276, the unglazed work is heated to 200 ° C. in 3 hours, then raised to 650 ° C. in 3 hours, further raised to 800 ° C. in 1 hour, and then reduced to 100 ° C. or lower. There is cooling. In Japanese Patent Application No. 10-334235, a dedicated unglazed kiln is presented. Japanese Patent Application No. 2002-41902 proposes a pottery kiln that can be baked without firewood, and no method of unglazed baking is presented. Eventually, the unglazed work and the main-baked work are performed separately.

Japanese Patent Application No. 10-334235 Japanese Patent Application No. 2002-41902

As described above, in ceramic art, unglazed work and main-baked work are generally performed separately. Therefore, there are problems such as long working time and high energy cost.

The present invention has been made in view of such problems of the conventional methods of ceramic pottery, and the object of the present invention is to make a pottery pottery that can be simultaneously baked using the exhaust heat during the main baking. Is to provide.

The ceramic pottery kiln according to the present invention has a main baking part having a combustion chamber at the lower part, a partition plate having a vent hole is disposed at the upper part of the unglazed part, and the unglazed part is disposed at the upper part of the partition plate. The unglazed portion has a ventilation exhaust hole and an unglazed exhaust hole, and the ventilation exhaust hole is disposed on the partition plate and the unglazed exhaust hole is disposed on the opposite side. Between the ventilation exhaust hole of the unglazed portion and the unglazed exhaust hole, there is a partition wall that separates the ventilation chamber and the unglazed chamber with a combustion gas introduction hole, and the combustion gas from the main firing chamber is directly discharged to the outside through the ventilation exhaust hole However, the combustion gas that has not been discharged from the vent exhaust hole flows into the unglazed chamber through the combustion gas introduction hole of the partition wall. The chamber in which the combustion gas flows so as to pass through the combustion gas introduction hole of the partition wall and exit to the unglazed exhaust hole is an unglazed chamber.

The temperature of the unglazed chamber is controlled by expanding or reducing the vent exhaust holes and the exit of the unglazed exhaust holes by opening and closing the exhaust adjustment plate, and adjusting the amount of combustion gas from the main firing chamber flowing into the unglazed chamber, while adjusting the proper temperature of the unglazed chamber It controls so that it may become 700 degreeC-800 degreeC which is.

Since the present invention is configured as described above, the following effects can be obtained. As described in claim 1, an unglazed room capable of introducing exhaust heat from the main baking room is arranged at the upper part of the main baking room so that the amount of direct discharge of exhaust heat and the amount led to the unglazed room can be adjusted. An efficient pottery kiln that can simultaneously do unglazing during baking is provided. By using this pottery kiln, it has become possible to carry out both processes simultaneously in a single baking operation, in which the main baking is performed after performing unglazed cooling and cooling.

In addition, this operation has the advantage that it can be freely used for easy baking, coloring, etc. in addition to unglazed because the temperature of the unglazed room can be freely controlled within the range of heat quantity of the combustion gas flowing from the main baking room.

BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the present invention will be described with reference to FIGS.

FIG. 1 shows a longitudinal section of a pottery kiln. The pottery kiln is composed of a main baking part 1, an unglazed part 2, and a partition plate 6 arranged so as to divide both of them up and down. The main baking section 1 has a combustion chamber 4 having a burning port 3. A combustion flame by a burner or the like is introduced into the combustion chamber 4 from the outside of the burning port 3, or charcoal or soot is burned in the combustion chamber 4. The combustion gas 16 is sent to the main baking chamber 5. A partition plate 6 having a vent hole 7 is disposed in the upper portion of the main baking chamber 5. The unglazed portion 2 is placed on the partition plate 6. The unglazed portion 2 is provided with a ventilation exhaust hole 12 and an unglazed exhaust hole 13 in the upper portion, and a partition wall 11 is installed so as to partition the unglazed portion 2 between the ventilation exhaust hole 12 and the unglazed exhaust hole 13. 10 is configured. By providing the combustion gas introduction hole 8 in the partition wall 11, the combustion gas 16 sufficiently utilized for the main baking in the main baking chamber 5 flows into the aeration chamber 9 as indicated by an arrow, and a part thereof is taken into the unglazed chamber 10. I can do it. An exhaust adjustment plate 14 is provided above the ventilation exhaust hole 12 and the unglazed exhaust hole 13, and each has an exhaust adjustment hole 15. When the exhaust adjustment plate 14 is slid, the opening area of the ventilation exhaust hole 12 and the unglazed exhaust hole 13 is increased. It is going to change.

The temperature control of the pottery kiln according to the present invention performs appropriate combustion in the combustion chamber 4 and adjusts the temperature in the main baking chamber 5 to around 1200 ° C. A large amount of combustion gas 16 is fed into the main baking chamber 5 from the combustion chamber 4 to heat the main baking work 20, and then flows into the vent chamber 9 through the vent hole 7 provided in the partition plate 6. Part of the combustion gas 16 that has flowed into the ventilation chamber 9 passes through the combustion gas introduction hole 8 provided in the partition wall 11 and flows into the unglazed chamber 10 to heat the unglazed work piece 21 and to form exhaust gas 17 from the unglazed exhaust hole 13. The remaining exhaust gas 17 is discharged from the ventilation chamber through the ventilation exhaust hole 12. The temperature of unglazed ceramics is set to 700 to 800 ° C., and the temperature of the combustion gas 16 flowing from the main baking chamber 5 reaches 1100 ° C. in the aeration chamber 9, which is too high for the unglazed temperature. The method of adjusting the unglazed temperature is to adjust the exhaust amount from the vented exhaust hole 12 and the unglazed exhaust hole 13 by sliding the exhaust adjusting plate 14 provided above the vented exhaust hole 12 and the unglazed exhaust hole 13, thereby The temperature of 10 is maintained at 700 to 800 ° C.

It is a longitudinal cross-sectional view of the pottery kiln of the example of the present invention. It is an AA view top view of the unglazed room in the pottery kiln shown in the present invention example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main baking part 2 Unglazed part 3 Burning port 4 Combustion chamber 5 Main baking chamber 6 Partition plate 7 Ventilation hole 8 Combustion gas introduction hole 9 Ventilation chamber 10 Unglazed chamber 11 Partition wall 12 Ventilation exhaust hole 13 Unglazed exhaust hole 14 Exhaust adjustment plate 15 Exhaust adjustment hole 16 Combustion gas 17 Exhaust gas 18 Column 19 Shelf 20 Main baking work 21 Unglazed work

Claims (1)

In a pottery kiln having a main baking part having a combustion chamber at the bottom, a partition plate having a vent hole is arranged at the upper part of the main baking part, and an unglazed part having a vent exhaust hole and an unglazed exhaust hole is arranged at the upper part of the partition plate. In addition, the vent hole is located on the partition plate so that the vent hole is on the opposite side, and the combustion gas is introduced between the vent hole and the blank hole in the unglazed part. A partition wall that has a hole and separates the ventilation chamber and the unglazed chamber is attached, and the amount of combustion gas flowing into the unglazed chamber from the combustion gas introduction hole is expanded or reduced by opening and closing the exhaust adjustment plate by opening and closing the exhaust adjustment plate. A pottery kiln characterized by keeping the temperature of the unglazed room properly while adjusting the temperature.

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