JPH025354Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a structure for preventing heat dissipation of a furnace wall, which makes it possible to easily control the dissipation heat.

(Prior art) For example, in a tunnel furnace for firing ceramics, the temperature inside the furnace from the preheating zone to the beginning of the firing zone, which does not have a heating burner inside, depends on the amount of heat dissipated from the furnace wall. be greatly affected. For this reason,
Conventionally, the amount of heat dissipated is suppressed by creating a suitable space on the outer wall of the furnace and attaching a metal plate, or directly attaching insulation material using mortar, bond, etc. to the outer wall of the furnace, thereby controlling the temperature inside the furnace. Efforts have been made to optimize the thermal efficiency and improve thermal efficiency. However, since the former is exposed to high heat, the metal plate suffers significant oxidation and corrosion, which increases maintenance costs and does not provide sufficient heat retention.
Furthermore, the latter had the disadvantage that it was easy to peel off due to the difference in thermal expansion between the brick furnace wall and the heat insulating material when the temperature of the furnace rose or fell. Furthermore, in either case, the heat insulating material attached to the furnace wall cannot be easily removed, so there is a drawback that the amount of heat dissipated cannot be adjusted in response to changes in the season, changes in the fired product, etc.

(Problems that the invention attempts to solve) This invention solves these conventional problems,
It was completed with the aim of creating a structure to prevent heat radiation from the furnace wall, which can appropriately control the amount of heat radiated from the furnace wall without fear of peeling off the heat insulating material.

(Means for solving the problem) The present invention has multiple rails protruding up and down to support flat insulation materials on the outside of the furnace wall, and a large number of insulation materials between these rails. It is characterized by being fitted in such a way that it can be slid freely.

(Embodiment) Next, the present invention will be described in detail with reference to the illustrated embodiment. Reference numeral 1 is a furnace wall of a preheating zone of a ceramic furnace such as a tunnel furnace, and the outside thereof has an L-shaped or A plurality of U-shaped rails 2, 2 are provided to project upward and downward. 3 is a ceramic fiber plate-like heat insulating material that is slidably fitted between these rails 2 and 2, and its size is, for example, width.
It is approximately 250mm, height 600mm, and thickness 30mm.
As shown in the figure, a large number of heat insulators 3 are fitted between the rails 2, 2, and cutouts are formed in required portions of the rails 2 to allow the heat insulators 3 to be attached and removed. If you put it on, you can easily attach and detach it.

(Function) With this structure, the heat insulating material 3 can be freely fitted between the rails 2 on the outside of the furnace wall 1, so the amount of heat dissipated can be reduced depending on seasonal temperature changes in the lower part of the furnace, for example. It is possible to freely control the amount of heat dissipated, such as reliably keeping warm in the winter the parts that are prone to fluctuations in temperature, and increasing the amount of heat dissipated in the summer by providing a small space between the insulation materials 3. . Moreover, since the heat insulating material 3 is slidably fitted and supported between the rails 2,
Even if a difference in thermal expansion occurs between the furnace wall 1 and the heat insulating material 3 when the temperature of the furnace increases or decreases, the heat insulating material 3 will not be peeled off or damaged. Furthermore, if a notch is formed at an appropriate position in the rail 2, the heat insulating material 3 can be attached and removed from the middle of the rail 2, which is extremely convenient for changing the layout of the heat insulating material 3 and for maintenance and inspection.

(Effects of the invention) As is clear from the above explanation, the present invention allows the amount of heat dissipated from the furnace wall to be freely controlled, making it possible to optimize the heat curve and reduce the amount of heat dissipated. For example, when applied to a tunnel furnace, fuel consumption could be reduced by about 5%. Moreover, in the present invention, there is no fear of peeling or damage to the heat insulating material, and the cost required for maintenance can be greatly reduced. Therefore, the present invention has extremely great practical value as a furnace wall heat dissipation prevention structure that eliminates the conventional problems.

[Brief explanation of the drawing]

The drawing is a partially cutaway perspective view showing an embodiment of the present invention. 1: Furnace wall, 2: Rail, 3: Insulation material.

Claims (1)

[Claims for Utility Model Registration] 1. A plurality of rails 2 for supporting a flat heat insulating material 3 are provided on the outside of the furnace wall 1 in a vertically protruding manner, and a large number of rails 2 are provided between these rails 2. A furnace wall heat dissipation prevention structure characterized by a heat insulating material 3 fitted in a slidable manner. 2. The furnace wall heat dissipation prevention structure according to claim 1, wherein cutouts for attaching and detaching the heat insulating material 3 are formed in required portions of the rail 2.