JPS5834398Y2 - Furnace material receiving device in heating furnace cart - Google Patents

Description

【考案の詳細な説明】 この考案は大型の加熱炉において、被加熱物を載置する
台車上に設置した耐火炉材の側面周囲を受止めるための
受止め装置に係る。[Detailed Description of the Invention] This invention relates to a catching device for catching the periphery of a side surface of a refractory furnace material installed on a cart on which an object to be heated is placed in a large heating furnace.

従来この種の加熱炉台車の炉材周囲の受止め装置として
は、第４図に示すように、台車Ａ上に設置した炉材Ｂの
周囲に断面Ｔ字状とした受止め板Ｃを台車周囲に固設し
、この受止め板Ｃの垂直部によって炉材Ｂの側面を受止
めていた。Conventionally, as a receiving device around the furnace material of this type of heating furnace cart, as shown in FIG. It was fixedly installed around the periphery, and the side surface of the furnace material B was received by the vertical part of this receiving plate C.

しかしながらこのような受止め構造では、炉内が高温（
約１３００℃）のため炉材Ｂの熱膨張による横方向の応
力に耐えられず、終には垂直部が図の鎖線の如く外方に
歪曲し炉材Ｂの周囲が破損脱落したり、あるいは台車Ａ
の出入に際しこの垂直部が炉の側壁りに接触して台車の
出入を困難とする等の不都合を生じ、この補修には多額
の経費と日数を要していた。However, with this type of receiving structure, the temperature inside the furnace (
(approximately 1300°C), it cannot withstand the lateral stress due to thermal expansion of furnace material B, and eventually the vertical part is distorted outward as shown by the chain line in the figure, causing the surroundings of furnace material B to break and fall off, or Trolley A
When moving in and out of the furnace, this vertical part comes into contact with the side wall of the furnace, making it difficult to move the cart in and out, causing inconveniences, and repairing this problem requires a large amount of money and time.

またこの受止め板Ｃを耐熱鋼として歪曲を防止すること
も考えられるが、材料費が高額となって実用的でない。It is also possible to prevent distortion by using heat-resistant steel for the receiving plate C, but this would be impractical due to the high material cost.

そこで本考案は、この受金具の形状と設置位置を改良し
、併せてこれを空気冷却せしめることにより上記のよう
な欠点を解消しようとするものである。Therefore, the present invention attempts to solve the above-mentioned drawbacks by improving the shape and installation position of this receiving metal fitting, and also by cooling it with air.

次に本考案の一実施例を図面によって説明する。Next, one embodiment of the present invention will be described with reference to the drawings.

上面に耐火炉材Ｂを設置し、加熱炉に出入可能とした台
車Ａにおいて、１は本考案の上記炉材Ｂの受金具で、鋳
鉄により断面がほぼ直角三角形の中空状に形威し、その
斜面１ａが上記の炉材Ｂの側面に当接してこれを受止め
るように多数の受金具１を炉材Ｂの周囲に並設し、それ
ぞれの底部１ｂを台車に固定する。In the trolley A, which has a refractory furnace material B installed on its upper surface and can be moved in and out of the heating furnace, 1 is a receiving fitting for the furnace material B of the present invention, which is made of cast iron and shaped into a hollow shape with a cross section of an approximately right triangle; A large number of receiving metal fittings 1 are arranged in parallel around the furnace material B so that the slopes 1a abut against and receive the side surfaces of the furnace material B, and the bottom portions 1b of each are fixed to a cart.

２は各受金具１の底部１ｂにそれぞれ穿った複数の孔で
、台車Ａの下部に設けた冷却用空気本管３から分岐した
多数の支管４の各先端部をこの各受金具１の孔２から挿
入し、噴出する空気により各受金具１を冷却する。Reference numeral 2 denotes a plurality of holes drilled in the bottom part 1b of each of the brackets 1, and the tips of the many branch pipes 4 branched from the main cooling air pipe 3 provided at the bottom of the truck A are inserted into the holes of each of the brackets 1. 2, and each receiving metal fitting 1 is cooled by the air that blows out.

なおこの空気本管３の基端部は台車Ａの後方（図の右方
）に延長し、台車Ａが炉内に定置された時、その先端部
は炉外に臨出し別に設けた送気管５にクイツクジヨイン
ト６を介して自動的に連結または離脱されるようになっ
ている。The base end of this air main pipe 3 extends to the rear of cart A (to the right in the figure), and when cart A is placed in the furnace, its tip extends outside the furnace and connects to a separately provided air supply pipe. 5 through a quick joint 6.

７は台車Ａ上の炉材Ｂの周囲に並設した受金具１の外側
周囲に固設した不定形の上部耐火材で、受金具１のリブ
１Ｃから突設した係止金具８によって固定支持せられ、
かつ受金具１の頂部における炉材Ｂとの間の間隙にはセ
ラミックバルク等の耐火性弾性材９を充填せしめる。Reference numeral 7 denotes an irregularly shaped upper refractory material fixed around the outside of the receiving metal fitting 1 arranged around the furnace material B on the trolley A, and is fixedly supported by a locking metal fitting 8 protruding from the rib 1C of the receiving metal fitting 1. forced,
The gap between the top of the receiving metal fitting 1 and the furnace material B is filled with a refractory elastic material 9 such as ceramic bulk.

１０は上部耐火材７の下方において、これを支承するよ
うに、台車Ａの台枠Ａ′の外周に、この台枠Ａ′から突
設した係止金具１１により固定支持された不定形の下部
耐火材である。Reference numeral 10 denotes an irregularly shaped lower part which is fixedly supported below the upper refractory material 7 by a locking fitting 11 protruding from the outer periphery of the underframe A' of the trolley A so as to support it. It is a fireproof material.

このように構成した本考案によれば、加熱炉内において
台車Ａ上に載置した被加熱物を加熱する際、台車Ａの炉
材Ｂが熱によって水平方向に膨張し、周囲に並設した各
受金具１を押圧することとなるが、その時該炉材Ｂの端
面は受金具１の斜面１ａに沿って矢印の如く上方へ迫り
上って横圧力が減少されるとともに、さらにこの受金具
１はその内部に噴出される支管４がらの空気によって冷
却せられ、またこの受金具１の外周の大部分は炉材Ｂと
上部耐火材７とによって囲まれているので直接炉の熱風
に爆されることもない。According to the present invention configured in this way, when heating the object placed on the trolley A in the heating furnace, the furnace material B of the trolley A expands horizontally due to the heat, and Each receiving fitting 1 is pressed, but at this time, the end face of the furnace material B rises upward as shown by the arrow along the slope 1a of the receiving fitting 1, and the lateral pressure is reduced. 1 is cooled by the air from the branch pipe 4 that is blown into its interior, and most of the outer periphery of this bracket 1 is surrounded by the furnace material B and the upper refractory material 7, so it is not directly exposed to the hot air of the furnace. It will never happen.

以上説明したように本考案の受金具は、その斜面によっ
て膨張した炉材を上方へ迫り出すようにしたので、この
受金具の受ける横圧力は極めて小さくなるとともに冷空
気によって内部を冷却するようになし、かつその周囲を
炉材と上部耐火材とによって取り囲むように設置したの
で、直接炉の熱風に爆されることなく低温でかつ酸化が
少なく歪曲が防止せられ、永く原形を保って長期間の使
用に耐え、台車回りの補修も上部耐火材の打ちかえだけ
でよいので容易であり、従来の受止め板の如く歪曲によ
る炉材周囲の破損等の恐れもなく、また受金具を鋳鉄製
としたのでその製造費も安価となり、冷却用空気により
台車周囲の台枠自体の冷却にも役立つのでこの台枠の熱
変形も防止されるなど優れた効果を有する。As explained above, the holder of the present invention is designed so that the expanded furnace material is pushed upward by its slope, so the lateral pressure that the holder receives is extremely small, and the inside is cooled by cold air. Since it is installed so that it is surrounded by the furnace material and the upper refractory material, it is kept at a low temperature without being directly exposed to the hot air of the furnace, has low oxidation, and is prevented from being distorted, and it maintains its original shape for a long time. The area around the trolley can be easily repaired by simply replacing the upper refractory material, and there is no risk of damage to the area around the furnace material due to distortion, which is the case with conventional receiving plates. As a result, the manufacturing cost is low, and the cooling air also helps to cool the underframe itself around the bogie, which has excellent effects such as preventing thermal deformation of the underframe.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の要部を示す台車の平面図、第２図は第
１図のＸ−Ｘ線拡大断面図、第３図は受金具単体の平面
図、第４図は従来構造の受止め板を示す断面図である。 Ａ・・・・・・台車、Ａ′・・・・・・台枠、Ｂ・・・
・・・炉材、Ｃ・・・・・・受止め板、Ｄ・・・・・・
側壁、１・・・・・・受金具、１ａ・・・・・・斜面、
１ｂ・・・・・・底部、１Ｃ・・・・・・リブ、２・・
・・・・孔、３・・・・・・空気本管、４・・・・・・
支管、５・・・・・・送気管、６・・・・・・クイック
ジヨイント、７・・・・・・上部耐火材、８・・・・・
・係止金具、９・・・・・・耐火性弾性材、１０・・・
・・・下部耐火材、１１・・・・・・係止金具。Fig. 1 is a plan view of the trolley showing the main parts of the present invention, Fig. 2 is an enlarged sectional view taken along the line X-X of Fig. 1, Fig. 3 is a plan view of the receiving bracket alone, and Fig. 4 is a plan view of the conventional structure. It is a sectional view showing a receiving plate. A...Dolly, A'...Underframe, B...
...Furnace material, C...Reception plate, D...
Side wall, 1...Bracket, 1a...Slope,
1b...bottom, 1C...rib, 2...
...hole, 3... air main, 4...
Branch pipe, 5... Air pipe, 6... Quick joint, 7... Upper refractory material, 8...
- Locking metal fitting, 9... Fire-resistant elastic material, 10...
... Lower fireproof material, 11 ... Locking metal fittings.

Claims (1)

【実用新案登録請求の範囲】 加熱炉台車上に設置した炉材の周囲に、この炉材の側面
を斜面によって受止めるように、断面がほぼ直角三角形
状の複数の鋳鉄製の受金具を連設し、この各受金具内に
冷却用空気管を開口せしめ、さらにこの受金具の外側に
は、受金具から突設し。 た係止金具によって係止された上部耐火材を固設すると
ともに、受金具の頂部における上記上部耐火材と炉材と
の間には、セラミックバルク等の耐火性弾性材を充填し
、上部耐火材の下方における台車台枠の外周にはこの台
枠から突設した係止金具によって係止された下部耐火材
を設けたことを特徴とする加熱炉台車における炉材の受
止め装置。[Scope of Claim for Utility Model Registration] A plurality of cast iron brackets each having an approximately right triangular cross section are connected around a furnace material installed on a heating furnace truck so that the sides of the furnace material are received by the slopes. A cooling air pipe is opened in each of these metal fittings, and a cooling air pipe is provided on the outside of each of the metal fittings to protrude from the metal fittings. At the same time, the upper refractory material that is locked by the locking metal fitting is fixed, and the space between the upper refractory material and the furnace material at the top of the receiving metal fitting is filled with a refractory elastic material such as ceramic bulk, and the upper refractory material is fixed. 1. A furnace material receiving device in a heating furnace cart, characterized in that a lower refractory material is provided on the outer periphery of the cart underframe below the material, the lower refractory material being locked by a locking fitting protruding from the underframe.