JPH0646296U - Vehicle for running in tunnel kiln for carbon electrode firing - Google Patents

Abstract

(57) [Summary] [Purpose] A vehicle for running in a tunnel kiln for firing carbon electrodes in which there is no danger of firing due to pitch leakage even if cracks or cracks occur in the caster sagar block. [Structure] A cart 1 and a carbon electrode supporting caster sagar block 5 provided on a bogie frame 2 via a heat insulating material 3, and between the caster sagar block and between the caster block and the outer wall of the bogie frame. A refractory caster 12 is cast at the same height as the caster sagar block 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a traveling vehicle that is carried in a tunnel kiln for firing a carbon electrode.

[0002]

[Prior art]

 Fig. 3 shows a schematic side view of a typical example of a vehicle for running in a tunnel kiln for burning carbon electrodes. In FIG. 3, 1 is a bogie, 2 is a bogie frame, and 3 is a refractory brick which is a heat insulating material provided on the bogie frame 2 via a bogie bottom plate 4. 5 is a caster sagar block, 6 is a pitch reservoir, and a sager 7 is attached to the caster sagar block 5. An electrode supporting sagar bottom plate 9 is attached to the lower portion 8 of the sagar 7, and 10 indicates an electrode on the bottom plate 9. One vehicle usually carries multiple sagars. In FIG. 4, four sagars are shown. Further, FIG. 5 is a cross-sectional view showing the relationship between the heat insulating material 3, the caster sagar block 5 and the sager 7 in the BB portion of FIG.

Although the caster sagar block is on the heat insulating material, since the block is circular, the heat insulating material 3 is exposed between the blocks and between the bogie frame outer frame and the sagar block as shown in FIG. ing. This vehicle transports the carbon electrode into the tunnel kiln and fires it. During firing, the pitch from the electrode leaks through the gap between the sagar 7 and the sagar bottom plate 9, but this pitch flows into the pitch reservoir 6. Oxygen is blocked in this area, so the pitch is not fired.

[0004]

[Problems to be solved by the device]

 The caster sagar block cracks and cracks due to the high temperature inside the tunnel kiln. If cracks or cracks occur, the pitch will flow out from the pitch reservoir of the caster sagar block to the exposed surface 11 of the exposed material 3, so combustion of the pitch cannot be avoided. When the pitch burns, the temperature inside the tunnel kiln changes, and firing of the electrode does not occur as intended.

In order to prevent this, if there are few cracks or cracks, the part is repaired with mortar, etc. However, if the cracks or cracks become large, this repair becomes impossible and the caster sagar block is replaced. There is a need to. For this reason, it is always necessary to prepare spare parts for many caster sagar blocks.

[0006]

[Means for Solving the Problems]

 The inventors of the present invention, for example, as a result of research for the purpose of developing a vehicle in which even if the caster sagar block is cracked or cracked, there is little or no possibility of the outflow of the pitch, that is, a vehicle in which the caster sagar block is less likely to be replaced, Completed the present invention. That is, the present invention comprises a trolley and caster sager blocks for supporting carbon electrodes which are stacked on the trolley frame via a heat insulating material, between the caster sager blocks and between the trolley frame outer frame and the caster sager block. The present invention relates to a vehicle for traveling in a tunnel kiln for firing a carbon electrode, in which a refractory caster is placed at the same height as the caster sager block. In this invention, the refractory casters are cast all over the exposed surface of the refractory brick, which is a heat insulating material, and its height is the same as that of the caster sagar block.

[0007]

【Example】

FIG. 1 is a plan view showing a trolley and a caster sagar block, and FIG. 2 is a sectional view of a portion AA in FIG. 1 showing the features of the present invention. In FIG. 2, reference numeral 12 indicates a refractory caster that is cast so as to have the same height as the caster sager block 5. In FIG. 2, even if the caster sagar block 5 is cracked or cracked, since the refractory caster 11 has the same height as the caster sagar block 5, the pitch does not leak and there is no possibility of burning. The refractory caster is not particularly limited, but, for example, Al ₂ O ₃ —Si ₂ O system (50% by weight of Al ₂ O _{3 and} 40% by weight of Si ₂ O) is preferably used.

[0008]

[Effect of device]

 By using the dolly of the present invention, it is almost unnecessary to replace the caster sagar block. That is, the replacement of the caster sagar block is 1/6 of the conventional one. Therefore, the number of caster sagar blocks for renewal may be much smaller than the conventional one.

[Brief description of drawings]

FIG. 1 is a plan view showing a relationship between a dolly and a caster sagar block in a vehicle of the present invention.

FIG. 2 is a cross-sectional view showing the configuration of the portion AA of FIG. 1 in the vehicle of the present invention.

FIG. 3 is a schematic side view of a representative example of a vehicle for running in a tunnel kiln for burning carbon electrodes.

FIG. 4 is a layout diagram of caster sagar blocks in the vehicle of FIG.

5 is a cross-sectional view showing a relationship between a heat insulating material, a caster block, and a sagger, taken along line BB in FIG.

[Explanation of symbols]

 1 bogie 2 bogie frame 3 heat insulating material 4 bogie bottom plate 5 caster sagar block 6 pitch reservoir 7 sagar 8 lower part of sagar 9 sagar bottom plate 10 electrode 11 heat insulating material exposed surface 12 fireproof caster

Claims (1)

[Scope of utility model registration request] 1. A trolley and a carbon electrode supporting caster sager block stacked on the trolley frame via a heat insulating material, between the caster sagar blocks and between the trolley frame outer frame and the caster sagar block. A vehicle for traveling in a tunnel kiln for firing carbon electrodes, in which a refractory caster is placed at the same height as the caster sager block.