Kiln capable of rapidly cooling

Abstract

The utility model discloses a fast cooling kiln, which comprises a kiln body, a connecting pipe and a heat transfer pipe, a kiln chamber is formed in the kiln body, and the top side and the bottom side of the kiln body are opened and are respectively provided with a baffle plate; the connecting pipe is arranged in the furnace chamber; the multiple heat transfer pipes are vertically arranged in the furnace cavity, the upper ends of the multiple heat transfer pipes communicate with the connecting pipe and are used for conveying heat conduction media downwards to the heat transfer pipes from the connecting pipe, and the lower ends of the heat transfer pipes penetrate through the kiln body and are used for outputting the heat conduction media. In the utility model, the heat-conducting medium is input from the connecting pipe, flows in the heat transfer pipe from top to bottom and finally flows out of the furnace chamber from the lower end of the heat transfer pipe, and in the process, the heat-conducting medium exchanges temperature with the heat transfer pipe, so that the temperature in the furnace chamber is quickly reduced, and the furnace chamber is cooled under the condition that the furnace chamber is not opened.

Description

Technical Field

[0001] This utility model relates to the field of kiln technology, specifically to a kiln with rapid cooling. 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 made of bricks and stones and can be made in various sizes as needed. It can be operated by combustible gas, oil or electricity.

[0003] After the materials are sintered in the kiln, it is usually necessary to cool the inside of the kiln quickly. Most common kiln cooling devices use external cooling to lower the temperature inside the kiln by cooling the outer wall of the kiln. This cooling method has a poor cooling effect and a long cooling cycle. It cannot quickly lower the internal temperature of the kiln. As the color of some art porcelain slowly cools down, the color will change, which will affect the ceramic art creation. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a kiln with rapid cooling, so as to solve the problem of the lack of kilns with rapid cooling in the prior art.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows: A kiln for rapid cooling includes a kiln body, a connecting pipe, and heat transfer pipes, wherein: a furnace cavity is formed within the kiln body, and the top and bottom sides of the kiln body are open and respectively provided with baffles; the connecting pipe is disposed in the furnace cavity; a plurality of heat transfer pipes are vertically disposed in the furnace cavity, the upper ends of the plurality of heat transfer pipes are all connected to the connecting pipe for conveying the heat transfer medium downward from the connecting pipe to the heat transfer pipes, and the lower ends of the heat transfer pipes all penetrate the kiln body for outputting the heat transfer medium.

[0006] In a preferred embodiment, the rapidly cooling kiln further includes multiple heat-conducting plates, which are fixed to the surface of the heat transfer tube.

[0007] In a preferred embodiment, the connecting pipe is characterized in that it is annular.

[0008] In a preferred embodiment, a plurality of the heat transfer tubes are arranged circumferentially along the connecting tube.

[0009] In a preferred embodiment, an inlet is provided on the upper side of the connecting pipe.

[0010] In a preferred embodiment, a liquid outlet is provided at the lower end of the heat transfer tube.

[0011] In a preferred embodiment, the rapidly cooling kiln further includes a receiving groove, which is disposed at the lower end of the liquid outlet and is fixedly connected to the kiln body.

[0012] In a preferred embodiment, the receiving groove is annular.

[0013] In a preferred embodiment, a drain port is provided on the side of the receiving groove.

[0014] In a preferred embodiment, the rapidly cooling kiln further includes a cooling fan, which is located at least at the bottom opening of the kiln body, and the airflow direction of the cooling fan is from bottom to top.

[0015] Compared with the prior art, the beneficial effects of this utility model include: the heat transfer medium is input from the connecting pipe, flows from top to bottom in the heat transfer pipe, and finally flows out of the furnace cavity from the lower end of the heat transfer pipe. During this process, the heat transfer medium and the heat transfer pipe exchange temperatures, which causes the temperature inside the furnace cavity to drop rapidly, thus achieving cooling of the furnace cavity without opening the furnace cavity. Attached Figure Description

[0016] Figure 1 This is a top-view perspective view of the kiln for rapid cooling provided by this utility model;

[0017] Figure 2 This is a three-dimensional view of the bottom of the kiln for rapid cooling provided by this utility model.

[0018] Figure 3 This is a three-dimensional view of the connecting pipe and heat transfer pipe of the kiln for rapid cooling provided by this utility model.

[0019] Attached reference numerals: 1-kiln body, 2-connecting pipe, 3-heat transfer pipe, 4-baffle, 5-heat conducting plate, 6-connection groove, 7-cooling fan, 1a-furnace cavity, 2a-liquid inlet, 3a-liquid outlet, 6a-liquid discharge port. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Please see Figures 1 to 3 This embodiment provides a kiln for rapid cooling, which includes a kiln body 1, a connecting pipe 2, and a heat transfer pipe 3. The kiln body 1 is used to contain the blank to be processed and heat it to solidify and form the blank. The connecting pipe 2 is used to connect the heat transfer pipe 3 and serve as a carrier for the heat transfer medium. The heat transfer pipe 3 is used for heat exchange between the heat transfer medium and the inside of the kiln body 1.

[0022] A furnace cavity 1a is formed inside the kiln body 1. The interior of the furnace cavity 1a is cylindrical, which can make the heat spread evenly. The top and bottom sides of the kiln body 1 are open and are respectively equipped with baffles 4. The baffles 4 are used to block the openings to prevent heat loss from the furnace cavity 1a. The baffles 4 can be connected to the kiln body 1 by a hinged connection. When the baffles 4 need to be opened, it is only necessary to rotate the baffles 4. In order to reduce heat loss from the furnace cavity 1a when the baffles 4 are closed, heat insulation materials, such as asbestos, can be installed on the inside of the baffles 4.

[0023] The connecting pipe 2 is installed in the furnace cavity 1a. The connecting pipe 2 is annular, allowing for better contact with the inner wall of the furnace cavity 1a. Furthermore, multiple heat transfer pipes 3 are arranged circumferentially along the connecting pipe 2, ensuring uniform heat exchange between the furnace cavity 1a and the heat transfer pipes 3. Further, a liquid inlet 2a is provided on the upper side of the rapidly cooling kiln connecting pipe 2 to transport the heat transfer medium into the connecting pipe 2. The liquid inlet 2a can penetrate the kiln body 1, facilitating the introduction of liquid from outside the kiln body 1 into the connecting pipe 2. Preferably, water can be used as the heat transfer medium. Water is the most common liquid in daily life and an excellent heat transfer medium. Using water as the heat transfer medium can reduce operating costs. Since the temperature inside the furnace cavity 1a is very high, water will rapidly vaporize into water vapor after entering the connecting pipe 2. To prevent physical or chemical changes in the connecting pipe 2 and the heat transfer pipes at high temperatures, the connecting pipe 2 and the heat transfer pipes are generally made of relatively stable metallic materials, such as titanium or titanium alloys.

[0024] Multiple heat transfer tubes 3 are vertically arranged in the furnace cavity 1a. The upper ends of each heat transfer tube 3 are connected to a connecting pipe 2, which is used to transport the heat transfer medium downward from the connecting pipe 2 to the heat transfer tube 3. The lower ends of each heat transfer tube 3 penetrate the kiln body 1, which is used to output the heat transfer medium. It should be noted that the lower ends of the heat transfer tubes 3 are located outside the furnace cavity 1a. To reduce the temperature exchange between the heat transfer tubes 3 and the outside environment, the portion of the lower end of the heat transfer tube 3 exposed in the kiln body 1 can be made of a material with low thermal conductivity, such as ceramic. Preferably, this rapid cooling kiln also includes multiple heat-conducting plates 5, which are fixed to the surface of the heat transfer tubes 3. The heat-conducting plates 5 increase the contact area with the furnace cavity 1a, which is used for rapid heat conduction between the heat transfer tubes 3 and the furnace cavity 1a. They can generally be made of metals with excellent thermal conductivity, such as copper or aluminum. Furthermore, a liquid outlet 3a is opened at the lower end of the heat transfer tube 3. Preferably, the lower end of the heat transfer tube 3 can also be connected to another connecting pipe 2 to increase the connection strength.

[0025] Preferably, the rapid cooling kiln also includes a receiving trough 6, which is located below the liquid outlet 3a and fixedly connected to the kiln body 1. It serves to receive the heat transfer medium flowing out from the lower end of the heat transfer tubes 3, preventing the medium from flowing onto the ground and affecting the working environment, and facilitating the recovery of the heat transfer medium. Additionally, some water can be pre-placed in the receiving trough 6, allowing the vaporized water vapor in the heat transfer tubes 3 to rapidly cool and liquefy upon contact with the water, reducing the diffusion of water vapor in the air. Furthermore, the receiving trough 6 is annular to accommodate the layout of multiple heat transfer tubes 3, reducing manufacturing difficulty. Furthermore, a liquid outlet 6a is provided on the side of the receiving trough 6, allowing the heat transfer medium in the heat transfer tubes 3 to flow out through the receiving trough 6 and from the liquid outlet 6a. In a preferred embodiment, the rapidly cooling kiln also includes a cooling fan 7. The cooling fan 7 is at least located at the bottom opening of the kiln body 1, and the airflow direction of the cooling fan 7 is from bottom to top. When the baffle 4 is allowed to open, the cooling fan 7 blows a large amount of relatively low-temperature outside air into the furnace cavity 1a, causing the temperature of the furnace cavity 1a to drop rapidly and further increasing the cooling speed of the furnace cavity 1a. Since the airflow direction of the cooling fan 7 is from bottom to top, it can form convection with the heat transfer medium in the heat transfer tube 3 flowing from top to bottom, improving the temperature exchange effect. In addition, the same cooling fan 7 can also be installed at the upper end of the furnace cavity 1a to further improve the airflow efficiency.

[0026] In summary, the present invention provides a kiln for rapid cooling. The heat transfer medium is input from the connecting pipe 2, flows from top to bottom in the heat transfer pipe 3, and finally flows out of the furnace cavity 1a from the lower end of the heat transfer pipe 3. During this process, the heat transfer medium exchanges temperature with the heat transfer pipe 3, causing the temperature inside the furnace cavity 1a to drop rapidly. The cooling of the furnace cavity 1a is achieved without opening the furnace cavity 1a.

[0027] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A kiln for rapid cooling, characterized in that, This includes the kiln body, connecting pipes, and heat transfer pipes, among which: A furnace cavity is formed within the kiln body, and the top and bottom sides of the kiln body are open and respectively equipped with baffles; The connecting pipe is disposed in the furnace cavity; Multiple heat transfer tubes are vertically arranged in the furnace cavity. The upper ends of the multiple heat transfer tubes are connected to the connecting pipe for conveying the heat transfer medium downward from the connecting pipe to the heat transfer tubes. The lower ends of the heat transfer tubes all penetrate the furnace body for outputting the heat transfer medium.

2. The kiln for rapid cooling according to claim 1, characterized in that, The rapidly cooling kiln also includes multiple heat-conducting plates, which are fixed to the surface of the heat transfer tube.

3. The kiln for rapid cooling according to claim 1, characterized in that, The connecting pipe is ring-shaped.

4. The kiln for rapid cooling according to claim 3, characterized in that, Multiple heat transfer tubes are arranged circumferentially along the connecting tube.

5. The kiln for rapid cooling according to claim 1, characterized in that, An inlet is provided on the upper side of the connecting pipe.

6. The kiln for rapid cooling according to claim 1, characterized in that, A liquid outlet is provided at the lower end of the heat transfer tube.

7. A kiln for rapid cooling according to claim 6, characterized in that, The rapid cooling kiln also includes a receiving groove, which is located at the lower end of the liquid outlet and is fixedly connected to the kiln body.

8. A kiln for rapid cooling according to claim 7, characterized in that, The receiving groove is annular.

9. A kiln for rapid cooling according to claim 8, characterized in that, A drain port is provided on the side of the receiving groove.

10. A kiln for rapid cooling according to claim 1, characterized in that, The rapidly cooling kiln also includes a cooling fan, which is located at least at the bottom opening of the kiln body, and the airflow direction of the cooling fan is from bottom to top.

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