JPH04371789A - Baking furnace for refractory - Google Patents

Abstract

PURPOSE:To permit even and quick heating by a method wherein respective fore, rear, left and right furrings are assembled so as to show uneven parallel arrangement to form gaps while fore, rear, left and right heaters are arranged so as to be hidden by the back surface side of respective lattices. CONSTITUTION:A furnace 4 is constituted of a left fore pillar 5, a right fore pillar 6, a left rear pillar 7, a right rear pillar 8, a refractory belt type fore furring 14, rear furring 15, left furring 16 and right furring 17, which are arranged between respective pillars 5-8, a fore heater 21, a rear heater 22, a left heater 23 and a right heater 24, which are provided between the inner surface of the furnace 4 and respective furring, while gaps are formed by assembling respective furring so that fore-and-rear and left-and-right uneven parallel stages are formed by respective furrings and respective heaters 21-24 are arranged so as to be hidden by the back surface side of respective furrings respectively. Accordingly, the heat of respective heaters 21-24 does not arrive directly at the works to be baked and the works are heated indirectly by radiation heat through the gaps between respective furrings 14-17 whereby uneven baking due to local heating can be prevented and the works can be heated quickly to bake them efficiently since gaps are formed between respective furrings 14-17 and, therefore, heat arrives through the gaps.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a firing furnace for refractories.

0002

2. Description of the Related Art Conventionally known Japanese Utility Model Publication No. 2-40476 describes a heating furnace in which an electric heater is provided inside the firing furnace body.

0003

[Problems to be Solved by the Invention] The above-mentioned known firing furnace is
Since the temperature inside the furnace is not uniform, there is a problem of uneven firing. Additionally, there is a problem of localized heating. The present invention solves the above problems, and enables uniform and rapid heating and prevents localized heating.

0004

[Means for Solving the Problems] Therefore, the present invention provides a left front column 5 and a right front column 6 disposed at the four corners of a refractory firing furnace 4.
, a left rear column 7 and a right rear column 8, and a fire-resistant strip-shaped front beam 14, a rear beam 15, a left beam 16, and a right beam 17 assembled between the pillars 5 to 8, The inner surface of the firing furnace 4 and the front crosspiece 1
4. Consists of a front heater 21, a rear heater 22, a left heater 23, and a right heater 24, which are provided between the rear crosspiece 15, the left crosspiece 16, and the right crosspiece 17. The front and rear heaters 21, 22, left heaters 23, and right heaters 24 are connected to the front and rear heaters 14 and 15, respectively, so that the front and rear heaters 21, 22, left heaters 23, and right heaters 24 are assembled to form a gap 19. , a refractory firing furnace is arranged so as to be hidden behind the back side of the left crosspiece 16 and the right crosspiece 17.

[0005]

[Example] An example of the firing furnace of the present invention will be explained below.
Reference numeral 1 denotes an outer wall of a firing furnace 4, whose front, rear, right, left, and upper surfaces are closed, but an opening 3 is formed in the bottom surface 2 for entering and exiting the fired products. Inside the firing furnace 4 surrounded by the outer wall 1, as shown in FIGS. 1 and 2, a left front column 5, a right front column 6, a left rear column 7, and a right rear column 8 are arranged at the four corners, and each column 5 to 8 An intermediate pillar 9 is provided between them as desired.

Each of the pillars 5 to 8 is a square prism, and vertical slits 10 and 11 are formed on the two inner surfaces of the prism. Further, vertical slits 12 are provided on both sides of the front intermediate pillar 9.
, 13 are provided. Between each of the pillars 5 to 8, vertical slits 10 and 11 are used to insert a front bar 14, a rear bar 15, a left bar 16, and a right bar 17 in the form of strips made of silicon carbide refractories.
Assemble.

[0007] Therefore, the front crosspiece 14, the rear crosspiece 15, the left crosspiece 16
And when fitting the right crosspiece 17 to each pillar 5 to 8, Fig. 3
A gap 19 is formed by interposing a distant piece 18 for each sheet so that the front and rear and left and right sides are different in level as shown in FIG. In this way, the shield/radiator 20 is assembled.

A rod-shaped front heater 21, a rear heater 22, a left heater 23, and a right heater 24 are provided between the inner surface of the outer wall 1 of the furnace 4 and the outer surface of the shield/radiator 20, respectively. Therefore, so that the heat of each heater 21 to 24 does not directly reach the fired product provided in the shield/radiator 20, the front heater 21 is placed behind the front crosspiece 14, and the rear heater 22 is placed behind the rear crosspiece 14.
, the left heater 23 is located behind the left crosspiece 16, and the right heater 24 is located under the right crosspiece 17.

[0009]

[Effect] Next, the effect will be described. The front left column 5, the front right column 6, the rear left column 7, and the rear right column 8 are vertically erected and fixed by any means, and the vertical slits 10 and 11 of each column 5 to 8 are filled with silicon carbide refractories. The formed band-shaped front crosspiece 14, rear crosspiece 15, left crosspiece 16, and right crosspiece 17 are each separated by a distant piece 1 so that the front and rear and left and right sides are at different levels as shown in FIG.
The shielding and radiating body 20 is assembled by assembling the shielding and radiating body 20 with 8 interposed therebetween.

Next, a front heater 21 , a rear heater 22 , a left heater 23 , and a right heater 24 are installed between the inner surface of the outer wall 1 of the firing furnace 4 and the front crosspiece 14 , rear crosspiece 15 , left crosspiece 16 , and right crosspiece 17 . is arranged and each heater 21 to 24 is energized. In this state, the object to be fired is housed inside the shield/radiator 20 and heated and fired.

[0012] In this case, the firing is performed using each of the heaters 21 to 2.
4 is hidden behind each crosspiece 14 to 17, the heat from each heater 21 to 24 does not directly reach the object to be fired, and each crosspiece 14 to
Since indirect heating is performed by radiant heat from 17, uneven firing due to local heating can be prevented, and since gaps 19 are formed in each of the crosspieces 14 to 17 by the distant pieces 16, heat also reaches from the gaps 19. Therefore, it can be heated quickly and fired efficiently. Further, when used for a long period of time, each of the crosspieces 14 to 17 may be partially damaged, but in that case, it is also possible to partially replace them.

[0013]

As described above, the present invention provides the front left column 5, the front right column 6, the rear left column 7, and the rear right column 8 disposed at the four corners of the refractory firing furnace 4, and each of the columns 5 and 5. - 8 are the assembled fire-resistant band-shaped front crosspiece 14, rear crosspiece 15, left crosspiece 16, and right crosspiece 17, and the inner surface of the firing furnace 4, the front crosspiece 14, the rear crosspiece 15, and the left crosspiece. It consists of a front heater 21, a rear heater 22, a left heater 23, and a right heater 24, which are provided between the crosspiece 16 and the right crosspiece 17. The front heater 21 and the rear heater 2 are assembled by assembling the left and right sides at different levels to form a gap 19.
2. The left heater 23 and the right heater 24 are configured as a refractory firing furnace arranged so as to be hidden behind the front beam 14, the rear beam 15, the left beam 16, and the right beam 17, respectively. 24 is hidden behind the back side of each crosspiece 14 to 17, the heat of each heater 21 to 24 does not directly reach the object to be fired, but is indirectly heated by radiant heat from each crosspiece 14 to 17, so that uneven heating due to local heating is avoided. Firing can be prevented, and each crosspiece 1
Since a gap 19 is formed between 4 to 17 by the distant piece 16, heat can reach from the gap 19 as well, so it can be heated quickly and baked efficiently. Further, when used for a long period of time, each of the crosspieces 14 to 17 may be partially damaged, but in that case, it is also possible to partially replace them.

[Brief explanation of drawings]

FIG. 1 is a sectional view taken along line A-A of the firing furnace.

[Fig. 2] A cross-sectional plan view of the firing furnace.

[Fig. 3] A perspective view of the main parts.

[Fig. 4] Perspective view of the pillar.

[Explanation of symbols]

1... External wall, 2... Bottom surface, 3... Opening, 4... Firing furnace, 5... Left front column, 6... Right front column, 7... Left rear column, 8... Right rear column, 9... Intermediate column, 10, 11, 12 , 13... Vertical slit, 14... Front bar, 15... Rear bar, 16... Left bar, 17... Right bar, 18... Distant piece, 19... Gap, 20... Shielding/radiator, 21
...Front heater, 22...Rear heater, 23...Left heater, 24...
right heater.

Claims (1)

[Claims] 1. A front left column 5, a front right column 6, a rear left column 7, and a rear right column 8 are disposed at the four corners of the refractory firing furnace 4, and there is an assembly between each of the columns 5 to 8. between the inner surface of the firing furnace 4 and the front crosspiece 14, the rear crosspiece 15, the left crosspiece 16, and the right crosspiece 17, which are fireproof strip-shaped front crosspieces 14, rear crosspieces 15, left crosspieces 16, and right crosspieces 17; Front heater 21 and rear heater 22 provided in
, a left heater 23 and a right heater 24, and the front crosspiece 14, rear crosspiece 15, left crosspiece 16 and right crosspiece 17 are assembled so that the front and rear and left and right sides are different in level to form a gap 19,
The front heater 21, the rear heater 22, the left heater 23, and the right heater 24 are refractory firing furnaces arranged so as to be hidden behind the front beam 14, rear beam 15, left beam 16, and right beam 17, respectively.