A twin body kiln structure

Abstract

This invention relates to a twin-body kiln structure, comprising a kiln I with a chimney I and a kiln II with a chimney II. Chimney I and chimney II are connected by a connecting pipe, which houses a fan. Kiln I has a flow guiding mechanism I corresponding to chimney I, and kiln II has a flow guiding mechanism II corresponding to chimney II. Both kiln I and kiln II are also fitted with jackets on their outer sides, forming insulation chambers between the jackets and their respective kilns I and II. One-way exhaust pipes communicating with the corresponding insulation chambers are installed on the side walls of both kiln I and kiln II. Exhaust pipes connected to the corresponding chimneys I and II are installed on the insulation chambers. This invention effectively recovers heat from the exhaust gases from kiln I and kiln II, achieving energy conservation.

Description

Technical Field

[0001] This invention relates to the field of industrial kiln technology, and in particular to a double-body kiln structure. Background Technology

[0002] A kiln is a furnace used to fire ceramic objects and sculptures or to fuse enamel onto the surface of metal objects. It is generally built of bricks and stones and can be made in various sizes as needed. It can be operated by combustible gas, oil or electricity. Electric kilns are easier to control the temperature than kilns that use combustible gas and oil. The temperature inside the kiln is measured by a pyrometer or a thermometer cone and can be seen through a peephole.

[0003] Specifically, a thermal energy circulation preheating kiln with patent number CN222352906U preheats the kiln by introducing hot air discharged from one kiln chamber into another for preheating, thus achieving energy recovery and saving energy consumption without waiting for one of the kiln chambers to cool down. However, this equipment has the following drawbacks: when the recovered hot air is introduced into a kiln chamber for preheating, it cannot be discharged effectively, leading to a large amount of hot air entering the kiln chamber and causing pressure buildup, which may affect the safety of the kiln chamber. Furthermore, it does not maximize the recovery of heat from the hot air to heat the kiln chamber. Summary of the Invention

[0004] The purpose of this invention is to provide a dual-body kiln structure.

[0005] The technical problem of this invention is mainly solved by the following technical solution:

[0006] A dual-body kiln structure includes a kiln I with a chimney I and a kiln II with a chimney II. The chimney I and chimney II are connected by a connecting pipe, and a fan is installed inside the connecting pipe. The kiln I is equipped with a flow guiding mechanism I corresponding to the chimney I, and the kiln II is equipped with a flow guiding mechanism II corresponding to the chimney II. Both the kiln I and the kiln II are also equipped with jackets on their outer sides. Each jacket forms a heat insulation cavity between itself and the corresponding kiln I and kiln II. Each kiln I and kiln II has a one-way exhaust pipe on its side wall that communicates with the corresponding heat insulation cavity. An exhaust pipe is installed on the heat insulation cavity that connects to the corresponding chimney I and chimney II. The exhaust pipe is connected to the corresponding chimney I and chimney II above the connecting pipe.

[0007] Preferably, a control valve I is provided on the chimney I, and the connecting pipe is located on the chimney I between the control valve I and the kiln I.

[0008] Preferably, a control valve II is provided on the chimney II, and the connecting pipe is located on the chimney II between the control valve II and the kiln II.

[0009] Preferably, control valve III is installed on the connecting pipes on both sides of the fan.

[0010] Preferably, the flow guiding mechanism I includes an L-shaped rod I disposed inside the chimney I and extending to the kiln I at its bottom end. A guide seat I is provided at the bottom end of the L-shaped rod I. A flow guiding hood I, which is frustum-shaped and inverted, is also provided at the top of the kiln I. The flow guiding hood I is driven by a drive mechanism I. The guide seat I is located inside the smallest opening end at the top of the flow guiding hood I and seals it.

[0011] Preferably, the flow guiding mechanism II includes an L-shaped rod II disposed inside the chimney II and extending to the kiln II at its bottom end. A guide seat II is provided at the bottom end of the L-shaped rod II. A flow guiding hood II in the shape of a frustum and inverted is also provided at the top of the kiln II. The flow guiding hood II is driven by a drive mechanism II. The guide seat II is located in the smallest opening end at the top of the flow guiding hood II and seals it.

[0012] The beneficial effects of this invention are as follows: This invention preheats the furnace by introducing hot gas from furnace I into furnace II, or by introducing hot gas from furnace II into furnace I. Simultaneously, the hot gas from furnace I or furnace II is introduced into the insulation chamber and finally discharged through the exhaust pipe. By utilizing the residual heat in the gas to heat the insulation chamber, the insulation chamber can effectively insulate furnace I or furnace II, reducing heat loss and improving the preheating effect of furnace I or furnace II. At the same time, it can fully recover the heat from the hot gas. Furthermore, the gas can be discharged by opening the exhaust pipe to prevent pressure buildup in furnace I or furnace II. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention.

[0014] In the diagram: 1. Kiln I, 2. Chimney I, 3. Kiln II, 4. Chimney II, 5. Connecting pipe, 6. Fan, 7. Flow guiding mechanism I, 71. L-shaped rod I, 72. Guide seat I, 73. Flow guiding hood I, 74. Drive mechanism I, 8. Flow guiding mechanism II, 81. L-shaped rod II, 82. Guide seat II, 83. Flow guiding hood II, 84. Drive mechanism II, 9. Jacket, 10. Insulation cavity, 11. One-way exhaust pipe, 12. Exhaust pipe, 13. Control valve I, 14. Control valve II, 15. Control valve III. Detailed Implementation

[0015] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0016] A twin-body kiln structure includes a kiln I1 with a chimney I2 and a kiln II3 with a chimney II4. The chimney I2 and chimney II4 are connected by a connecting pipe 5, and a fan 6 is installed inside the connecting pipe 5. Figure 1 As shown, a control valve I13 is installed on the chimney I2, and the connecting pipe 5 is located on the chimney I2 between the control valve I13 and the kiln I1. A control valve II14 is installed on the chimney II4, and the connecting pipe 5 is located on the chimney II4 between the control valve II14 and the kiln II3. A control valve III15 is installed on the connecting pipe 5 on both sides of the fan 6.

[0017] The kiln I1 is equipped with a flow guiding mechanism I7 corresponding to the chimney I2. The flow guiding mechanism I7 includes an L-shaped rod I71 disposed inside the chimney I2 and extending its bottom end into the kiln I1. A guide seat I72 is disposed at the bottom end of the L-shaped rod I71. A frustum-shaped, inverted flow guiding hood I73 is also disposed at the top of the kiln I1. The flow guiding hood I73 is driven by a drive mechanism I74. In this embodiment, the drive mechanism I74 is an electric push rod. The guide seat I72 is located inside the smallest opening end of the top of the flow guiding hood I73 and seals it. Figure 1 As shown, when the hot gas in the kiln I1 is discharged into the kiln II3, the drive mechanism I74 drives the guide hood I73 to move upward, so that its top opening slides out from the guide seat I72. At this time, the top opening of the guide hood I73 is open, so the guide hood I73 can easily guide the hot gas in the kiln I1 to flow into its opening and into the chimney I2.

[0018] The kiln II3 is equipped with a flow guiding mechanism II8 corresponding to the chimney II4. The flow guiding mechanism II8 includes an L-shaped rod II81 disposed within the chimney II4 and extending its bottom end into the kiln II3. A guide seat II82 is provided at the bottom end of the L-shaped rod II81. A frustum-shaped, inverted flow guiding hood II83 is also provided at the top of the kiln II3. The flow guiding hood II83 is driven by a drive mechanism II84. In this embodiment, the drive mechanism II84 is an electric push rod. The guide seat II82 is located within the smallest opening at the top of the flow guiding hood II83 and seals it. Figure 1As shown, when hot gas is discharged from kiln I1 into kiln II3, drive mechanism II84 drives guide hood II83 to move downward, so that its top opening is fitted onto guide seat II82. At this time, the top opening of guide hood II83 is sealed. Then, the gas flowing from chimney II4 into kiln II3 can be guided through the inclined surface of the top of guide hood II83, so that the gas diffuses to different areas around kiln II3 to make it evenly heated. When hot gas is discharged from kiln II3 into kiln I1, the states of guide hood I73 and guide hood II83 are reversed. In summary, by switching the state of guide hood I73 in guide mechanism I7 and guide hood II83 in guide mechanism II8, it is possible to guide the discharge of gas in kiln I1 or kiln II2, or to facilitate the diffusion of airflow to different areas in the corresponding kiln I1 or kiln II3 to achieve the purpose of uniform preheating.

[0019] Both kiln I1 and kiln II3 are equipped with jackets 9 on their outer sides. Each jacket 9 forms an insulation cavity 10 between itself and the corresponding kiln I1 or kiln II3. One-way exhaust pipes 11, communicating with the corresponding insulation cavity 10, are installed on the side walls of both kiln I1 and kiln II3. Exhaust pipes 12, connected to the corresponding chimneys I2 and II4, are installed on the insulation cavity 10. The hot gas introduced into the corresponding kiln I1 or kiln II3, after preheating, can enter the corresponding insulation cavity 10 through the one-way exhaust pipe 11 for further heating. This allows the residual heat in the gas discharged into the insulation cavity 10 to insulate the kiln I1 or kiln II3, improving its preheating effect and fully recovering the heat from the hot gas. The gas is then discharged through the exhaust pipe 12 to prevent pressure buildup within the kiln I1 or kiln II3.

[0020] The method of using this invention is as follows: First, place the embryo into kiln I1 and kiln II3 respectively. Then, ignite kiln I1 to begin firing, and open control valve I13 to maintain communication between exhaust chimney I2 and the outside environment, ensuring the discharge of waste gas. At this time, the state of the guide mechanism I7 is as follows: Figure 1 As shown, control valves II14 and III15 are closed;

[0021] When the temperature of kiln I1 rises to approximately 800 degrees Celsius, control valve I13 is closed, and control valve III15 and fan 6 are opened. This allows exhaust gas at approximately 800 degrees Celsius to be blown from kiln I1 into kiln II3, causing kiln II3 to continuously heat up and achieve a preheating effect. At this time, the flow guiding mechanism I7 can easily guide the hot gas from kiln I1 into chimney I2. The flow guiding mechanism II8 is in the following state: Figure 1As shown, the flow guiding mechanism II8 facilitates the diffusion of hot gas to different areas within the kiln II3 for preheating. Gas from the kiln II3 enters the insulation chamber 10 through the one-way exhaust pipe 11. By utilizing the residual heat in the gas, the insulation chamber 10 is heated, thus enabling the insulation chamber 10 to maintain the temperature of the kiln II3, reduce heat loss, and improve the preheating effect of the kiln II3 while fully recovering the heat from the hot gas. Subsequently, the gas can be discharged by opening the exhaust pipe 12 to prevent pressure buildup within the kiln I1 or kiln II3.

[0022] During the above process, the temperature of kiln II3 is measured. When the temperature of kiln II3 is suitable, control valve III15 and exhaust pipe 12 are closed to ensure the separation of chimney I2 and chimney II4, so as to prevent the flowing exhaust gas from affecting the ignition of kiln II3. Then, control valve II14 is opened and kiln II3 is ignited, so that kiln II3 can be fired normally. At the same time, control valve I13 is opened to facilitate the normal exhaust of chimney I2, so that the unfired body in kiln I1 can continue to be fired, or the fired body can begin to dissipate heat and cool down. After the porcelain is removed from kiln I1, a new body is put in. When the temperature of kiln II3 rises to about 800 degrees, the above reverse steps can be repeated to introduce the hot gas in kiln II3 into kiln I1 to achieve the purpose of preheating in a circulating operation.

[0023] The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A twin-body kiln structure, comprising a kiln I with a chimney I and a kiln II with a chimney II, wherein the chimney I and chimney II are connected by a connecting pipe, and a fan is installed inside the connecting pipe, characterized in that: The kiln I is equipped with a flow guiding mechanism I corresponding to chimney I, and the kiln II is equipped with a flow guiding mechanism II corresponding to chimney II. Both kiln I and kiln II are also equipped with jackets on their outer sides. Each jacket forms a heat insulation cavity between itself and the corresponding kiln I and kiln II. Both kiln I and kiln II are equipped with one-way exhaust pipes on their side walls that communicate with the corresponding heat insulation cavities. Each heat insulation cavity is equipped with an exhaust pipe that connects to the corresponding chimney I and chimney II.

2. The twin-body kiln structure according to claim 1, characterized in that: A control valve I is installed on the chimney I, and the connecting pipe is located on the chimney I between the control valve I and the kiln I.

3. The twin-body kiln structure according to claim 1, characterized in that: A control valve II is installed on the chimney II, and the connecting pipe is located on the chimney II between the control valve II and the kiln II.

4. The twin-body kiln structure according to claim 1, characterized in that: Control valve III is installed on the connecting pipes on both sides of the fan.

5. The twin-body kiln structure according to claim 1, characterized in that: The flow guiding mechanism I includes an L-shaped rod I installed inside the chimney I and extending to the kiln I at its bottom end. A guide seat I is provided at the bottom end of the L-shaped rod I. A flow guiding hood I, which is frustum-shaped and inverted, is also provided at the top of the kiln I. The flow guiding hood I is driven by a drive mechanism I. The guide seat I is located inside the smallest opening end at the top of the flow guiding hood I and seals it.

6. The twin-body kiln structure according to claim 1, characterized in that: The flow guiding mechanism II includes an L-shaped rod II disposed inside the chimney II and extending to the kiln II at its bottom end. A guide seat II is provided at the bottom end of the L-shaped rod II. A flow guiding hood II, which is frustum-shaped and inverted, is also provided at the top of the kiln II. The flow guiding hood II is driven by a drive mechanism II. The guide seat II is located in the smallest opening end at the top of the flow guiding hood II and seals it.

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