JP2014219161A - Sidewall friction prevention structure of pallet bogie and friction prevention method - Google Patents

Sidewall friction prevention structure of pallet bogie and friction prevention method Download PDF

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JP2014219161A
JP2014219161A JP2013099089A JP2013099089A JP2014219161A JP 2014219161 A JP2014219161 A JP 2014219161A JP 2013099089 A JP2013099089 A JP 2013099089A JP 2013099089 A JP2013099089 A JP 2013099089A JP 2014219161 A JP2014219161 A JP 2014219161A
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sidewall
pallet
wear
pallet truck
air flow
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JP5884188B2 (en
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英司 半田
Eiji Handa
英司 半田
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JFE Steel Corp
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
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    • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates

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Abstract

PROBLEM TO BE SOLVED: To provide a friction prevention technology which can prevent not only the wear of a sidewall of a lower part lower than a grate bar of a Dwight-Lloyd (DL) type sintering machine but also the wear of an upper part higher than the grate bar.SOLUTION: In a friction prevention structure of a sidewall, a raising member 5 for increasing ventilation resistance against an air flow 4 is arranged on an upper face of an end grate bar 2a adjoining the sidewall 3 of a pallet bogie out of a series of grate bars 2 which are arranged on a bottom of the pallet bogie of a DL-type sintering machine.

Description

本発明は、ドワイトロイド式焼結機（以下、ＤＬ式焼結機という）のパレット台車のサイドウォールが摩耗するのを防止するための摩耗防止構造および摩耗防止方法に関するものである。   The present invention relates to a wear prevention structure and a wear prevention method for preventing the side wall of a pallet truck of a Dwightroid type sintering machine (hereinafter referred to as a DL type sintering machine) from being worn.

ＤＬ式焼結機は、粉鉄鉱石、コークス、副原料等の焼結原料を充填したパレット台車が給鉱部から排鉱部へ移動する間に、焼結原料の焼結を行なって焼結鉱ケーキを製造する設備である。給鉱部にて焼結原料を充填したパレット台車が移動することによって、点火炉でパレット台車内の焼結原料の上面に着火させ、その後、ブロワで空気を下方へ吸引して、焼結原料中のコークスを上層から徐々に燃焼させ、排鉱部に到達する前に下層までコークスを燃焼させる。コークスの燃焼によって粉鉄鉱石と副原料が溶融する領域も上層から下層へ変位して行き、コークスの燃焼が終了した部位は、ブロワによって吸引される空気流で冷却される。このようにして焼結された焼結鉱ケーキは、排鉱部から排出される。   The DL-type sintering machine sinters the sintered raw material while the pallet truck filled with sintered raw materials such as fine iron ore, coke, and auxiliary materials moves from the supply section to the discharge section. This is a facility for producing ore cakes. When the pallet truck filled with the sintering raw material moves in the supply section, the ignition furnace ignites the upper surface of the sintering raw material in the pallet truck, and then sucks the air downward with a blower, The coke inside is gradually burned from the upper layer, and the coke is burned to the lower layer before reaching the exhausting part. The region where the fine iron ore and the auxiliary material are melted by the combustion of the coke is also displaced from the upper layer to the lower layer, and the portion where the combustion of the coke is finished is cooled by the air flow sucked by the blower. The sintered ore cake sintered in this way is discharged from the discharge portion.

ここで、パレット台車の要部を、図３に断面図として示す。なお図３にはパレット台車の片側のみを示す。図３に示す通り、パレット台車１の底部は、一連のグレートバー２が設置されており、ブロワ（図示せず）によって下方に吸引される空気流が容易に流通できる。
焼結原料（図示せず）は、グレートバー２とサイドウォール３で構成される空間に充填され、パレット台車１の移動中に、焼結原料との摩擦によってサイドウォール３の内側側面が摩耗する。そして、摩耗が進行するとパレット台車を使用できなくなるので、定期的にパレット台車を補修あるいは交換する必要がある。そこでサイドウォール３の摩耗を防止して、パレット台車１の寿命を延長するために、種々の技術が検討されている。 Here, the principal part of a pallet cart is shown as a cross-sectional view in FIG. FIG. 3 shows only one side of the pallet truck. As shown in FIG. 3, a series of great bars 2 are installed at the bottom of the pallet carriage 1 so that an air flow sucked downward by a blower (not shown) can be easily circulated.
A sintering raw material (not shown) is filled in a space formed by the great bar 2 and the sidewall 3, and the inner side surface of the sidewall 3 is worn by friction with the sintering raw material during the movement of the pallet carriage 1. . Since the pallet truck cannot be used as wear progresses, it is necessary to periodically repair or replace the pallet truck. Therefore, various techniques have been studied in order to prevent the side wall 3 from being worn and extend the life of the pallet carriage 1.

たとえば特許文献１には、パレット台車底部の火格子面に防護用プレートを着脱自在に装着して、火格子面より下部のパレット用側壁の摩耗を防止する技術が開示されている。この技術は、火格子面より下部のパレット用側壁の摩耗を防止することは可能であるが、火格子面より上部のパレット用側壁の摩耗は防止できないという問題がある。なお、特許文献１に開示された火格子面とパレット用側壁は、それぞれ図３のグレートバー２とサイドウォール３に相当するものである。   For example, Patent Document 1 discloses a technique for preventing wear of a pallet side wall below the grate surface by detachably attaching a protective plate to the grate surface at the bottom of the pallet carriage. Although this technique can prevent the wear of the pallet side wall below the grate surface, it cannot prevent the wear of the pallet side wall above the grate surface. The grate surface and the pallet side wall disclosed in Patent Document 1 correspond to the great bar 2 and the side wall 3 of FIG.

特開2004-69132号公報JP 2004-69132 A

本発明は、従来技術の問題を解消し、グレートバーより下部のサイドウォールの摩耗防止のみならず、グレートバーより上部のサイドウォール摩耗防止をも可能にする摩耗防止構造および摩耗防止方法を提供することを目的とする。   The present invention provides a wear prevention structure and wear prevention method that solves the problems of the prior art and enables not only wear prevention of the sidewall below the great bar but also prevention of wear of the sidewall above the great bar. For the purpose.

本発明者は、焼結原料を充填したパレット台車が移動する間にサイドウォールが摩耗する現象について研究した。その結果、パレット台車の移動（すなわち焼結の進行）につれて焼結原料が収縮するので、焼結原料とサイドウォールとの間に隙間が生じ、その隙間に空気流が流れ込むことによって、サイドウォールの摩耗が生じることが分かった。
つまり、ブロワによって吸引される空気流は焼結原料の微細な粉体粒子を含んでおり、その空気流が、図４に示すように、焼結原料（図示せず）とサイドウォールとの間の隙間に流れ込む。そして、隙間に流れ込んだ空気流４は狭い空間を通過するので、パレット台車の中央部の空気流に比べて流速が速くなり、空気流４とともに流れ込んだ微細な粉体粒子がサイドウォールを削り落すことによって摩耗が発生することを見出した。 The present inventor has studied the phenomenon that the side wall is worn while the pallet truck filled with the sintering raw material moves. As a result, the sintering raw material contracts as the pallet carriage moves (that is, the progress of sintering), so that a gap is formed between the sintering raw material and the sidewall, and an air flow flows into the gap, thereby It was found that wear occurred.
That is, the air flow sucked by the blower contains fine powder particles of the sintering raw material, and the air flow is between the sintering raw material (not shown) and the sidewall as shown in FIG. Flows into the gap. Since the air flow 4 flowing into the gap passes through a narrow space, the flow velocity is faster than the air flow at the center of the pallet truck, and the fine powder particles flowing along with the air flow 4 scrape off the sidewall. It has been found that wear occurs.

次に本発明者は、サイドウォールの摩耗を防止する技術について検討した。そして、焼結原料とサイドウォールとの間の隙間に空気流が流れ込むのを防止することによって、サイドウォールの摩耗を防止できるという知見を得た。
本発明は、このような知見に基づいてなされたものである。
すなわち本発明は、ＤＬ式焼結機のパレット台車の底部に設置される一連のグレートバーのうち、パレット台車のサイドウォールに隣接する端部グレートバーの上面に、空気流に対する通風抵抗を増加するための嵩上げ部材を配設するサイドウォールの摩耗防止構造である。 Next, the present inventor examined a technique for preventing side wall wear. The inventors have also found that the wear of the sidewall can be prevented by preventing the air flow from flowing into the gap between the sintering raw material and the sidewall.
The present invention has been made based on such knowledge.
That is, the present invention increases the ventilation resistance against the air flow on the upper surface of the end great bar adjacent to the side wall of the pallet truck among the series of great bars installed at the bottom of the pallet truck of the DL-type sintering machine. It is the wear prevention structure of the side wall which arrange | positions the raising member for this.

本発明の摩耗防止構造においては、嵩上げ部材がパレット台車の中央側に傾斜面を有することが好ましい。
また本発明は、ＤＬ式焼結機のパレット台車の底部に設置される一連のグレートバーのうち、パレット台車のサイドウォールに隣接する端部グレートバーの上面に嵩上げ部材を配設して、サイドウォール近傍の空気流の風量を低減するサイドウォールの摩耗防止方法である。 In the wear preventing structure of the present invention, it is preferable that the raising member has an inclined surface on the center side of the pallet carriage.
In addition, the present invention provides a side surface by arranging a raising member on an upper surface of an end portion great bar adjacent to the side wall of the pallet carriage among a series of great bars installed at the bottom of the pallet carriage of the DL-type sintering machine. This is a side wall wear prevention method that reduces the air volume of the air flow in the vicinity of the wall.

本発明の摩耗防止方法においては、嵩上げ部材がパレット台車の中央側に傾斜面を有し、サイドウォール近傍の空気流をパレット台車の中央側へ誘導することが好ましい。   In the wear prevention method of the present invention, it is preferable that the raising member has an inclined surface on the center side of the pallet truck and guides the air flow in the vicinity of the sidewall to the center side of the pallet truck.

本発明によれば、サイドウォールの内側側面の摩耗を防止して、パレット台車の寿命を延長できるので、産業上格段の効果を奏する。   According to the present invention, wear on the inner side surface of the sidewall can be prevented, and the life of the pallet truck can be extended, so that a remarkable industrial effect can be achieved.

本発明を適用したパレット台車の要部を示す断面図である。It is sectional drawing which shows the principal part of the pallet cart to which this invention is applied. 本発明を適用した他のパレット台車の要部を示す断面図である。It is sectional drawing which shows the principal part of the other pallet cart to which this invention is applied. パレット台車の要部を示す断面図である。It is sectional drawing which shows the principal part of a pallet cart. サイドウォール近傍の空気流を示す断面図である。It is sectional drawing which shows the air flow of a sidewall vicinity.

図１は、本発明を適用したパレット台車の要部を示す断面図である。パレット台車の底部に設置される一連のグレートバー２のうち、サイドウォール３に隣接するグレートバー2a（以下、端部グレートバーという）の上面に嵩上げ部材５を配設して、サイドウォール３近傍の空気流４の通風抵抗を増加させる。
嵩上げ部材５を端部グレートバー2aの上面に配設することによって、焼結原料（図示せず）とサイドウォール３との間の隙間に空気流が流れ込むのを防止する。つまり、サイドウォール３近傍の空気流４は、図１に示す通り、嵩上げ部材５の上面からパレット台車の中央側へ流れる。したがって、焼結原料とサイドウォールとの間の隙間に流れ込む空気流の風量を低減することが可能となり、グレートバー２上面から下方に位置するサイドウォール３の摩耗を防止できる。 FIG. 1 is a cross-sectional view showing a main part of a pallet truck to which the present invention is applied. Of the series of great bars 2 installed at the bottom of the pallet carriage, a raising member 5 is disposed on the upper surface of a great bar 2a (hereinafter referred to as an end great bar) adjacent to the sidewall 3, and the vicinity of the sidewall 3 The airflow resistance of the air flow 4 is increased.
By disposing the raising member 5 on the upper surface of the end portion great bar 2a, the air flow is prevented from flowing into the gap between the sintered raw material (not shown) and the sidewall 3. That is, the air flow 4 in the vicinity of the sidewall 3 flows from the upper surface of the raising member 5 to the center side of the pallet truck as shown in FIG. Therefore, it is possible to reduce the air volume of the air flow flowing into the gap between the sintering raw material and the sidewall, and wear of the sidewall 3 positioned below the upper surface of the great bar 2 can be prevented.

さらに、サイドウォール３近傍の空気流４は嵩上げ部材５の上面で滞留するので、グレートバー２上面から上部においても空気流４の流速が低下する。したがって、グレートバー２上面から上方に位置するサイドウォール３の摩耗も防止できる。
嵩上げ部材５の高さＨが低すぎると、サイドウォール３の摩耗を防止する効果が得られない。一方で、高さＨが高すぎると、パレット上の原料装入量が減ってしまい、焼結鉱生産量が減となってしまう。また、嵩上げ部材５の重量が重くなる。したがって、嵩上げ部材５の高さＨは30〜50mmの範囲内が好ましい。 Further, since the air flow 4 in the vicinity of the sidewall 3 stays on the upper surface of the raising member 5, the flow velocity of the air flow 4 also decreases from the upper surface to the upper portion of the great bar 2. Therefore, it is possible to prevent the side wall 3 located above the upper surface of the great bar 2 from being worn.
If the height H of the raising member 5 is too low, the effect of preventing wear of the sidewall 3 cannot be obtained. On the other hand, if the height H is too high, the raw material charging amount on the pallet will be reduced, and the sinter production will be reduced. Moreover, the weight of the raising member 5 becomes heavy. Therefore, the height H of the raising member 5 is preferably in the range of 30 to 50 mm.

なお、既設のパレット台車に本発明を適用する場合は、既設の端部グレートバー2aの上面に所定の高さＨ（mm）を有する嵩上げ部材５を取り付ける。パレット台車を新設する場合は、端部グレートバー2aの高さを、中央部のグレートバー２に比べてＨ（mm）に相当する高低差を設けて高くすることによって、本発明を適用できる。
嵩上げ部材５は、図２(a)〜(d)に示すように、パレット台車の中央側に傾斜面６を設けても良い。傾斜面６を設けることによって、サイドウォール３近傍の空気流４をパレット台車の中央側へ円滑に誘導できる。その結果、嵩上げ部材５の上面で空気流４の乱流が生じるのを防止できるので、焼結原料とサイドウォールとの間の隙間に流れ込む空気流の風量を低減する効果が顕著になる。しかも空気流４をパレット台車の中央側へ円滑に誘導することによって、焼結の進行を阻害せず、均一な品質を有する焼結鉱ケーキを得ることができる。 In addition, when applying this invention to the existing pallet truck, the raising member 5 which has predetermined height H (mm) is attached to the upper surface of the existing end part great bar 2a. In the case of newly installing a pallet carriage, the present invention can be applied by increasing the height of the end great bar 2a by providing a height difference corresponding to H (mm) as compared with the central great bar 2.
As shown in FIGS. 2 (a) to 2 (d), the raising member 5 may be provided with an inclined surface 6 on the center side of the pallet truck. By providing the inclined surface 6, the air flow 4 in the vicinity of the sidewall 3 can be smoothly guided to the center side of the pallet truck. As a result, since the turbulent flow of the air flow 4 can be prevented from occurring on the upper surface of the raising member 5, the effect of reducing the air volume of the air flow flowing into the gap between the sintering raw material and the sidewall becomes remarkable. Moreover, by smoothly guiding the air flow 4 to the center side of the pallet truck, it is possible to obtain a sintered ore cake having uniform quality without inhibiting the progress of sintering.

傾斜面６の傾斜角αが小さすぎると、サイドウォール３近傍の空気流４をパレット台車の中央側へ円滑に誘導する効果が得られない。一方で、傾斜角αが大きすぎると、上記した嵩上げ部材５の高さＨ（mm）の範囲内では、嵩上げ部材５の上面の水平な部位の面積が大きくなるので、サイドウォール３近傍の空気流４をパレット台車の中央側へ、乱流を発生させず円滑に誘導する効果が得られない。したがって、傾斜面６の傾斜角αは40〜50°の範囲内が好ましい。なお傾斜角α（°）は、傾斜面６と水平面とのなす角度である。   If the inclination angle α of the inclined surface 6 is too small, the effect of smoothly guiding the air flow 4 in the vicinity of the sidewall 3 to the center side of the pallet truck cannot be obtained. On the other hand, if the inclination angle α is too large, the area of the horizontal portion of the upper surface of the raising member 5 becomes larger within the range of the height H (mm) of the raising member 5, so that the air in the vicinity of the sidewall 3 is increased. The effect of smoothly guiding the flow 4 to the center side of the pallet truck without generating turbulent flow cannot be obtained. Therefore, the inclination angle α of the inclined surface 6 is preferably in the range of 40 to 50 °. The inclination angle α (°) is an angle formed by the inclined surface 6 and the horizontal plane.

既設のＤＬ式焼結機のパレット台車の寿命延長を図るために、本発明を実施してサイドウォールの摩耗を防止するテストを行なった。その実施例について、図１および図２(a)を参照して説明する。
＜実施例１＞
パレット台車の端部グレートバー2aの上面に、断面形状が長方形の嵩上げ部材５を取り付けた（図１参照）。嵩上げ部材５の高さＨは40mmとした。そして、ＤＬ式焼結機を６ケ月間操業した後に、グレートバー２上面から上方60mmの位置でサイドウォール３の厚さを測定して、嵩上げ部材５を取り付けた時の測定値と比べたところ、厚さが１mm減少していた。したがって、サイドウォール３の１ケ月あたりの平均摩耗量Ｍ1は0.17mm／月であった。これを発明例１とする。 In order to extend the service life of the existing pallet truck of the DL-type sintering machine, the present invention was implemented and a test for preventing wear of the sidewalls was performed. The embodiment will be described with reference to FIGS. 1 and 2 (a).
<Example 1>
A raising member 5 having a rectangular cross section was attached to the upper surface of the end great bar 2a of the pallet truck (see FIG. 1). The height H of the raising member 5 was 40 mm. And after operating DL type sintering machine for six months, when the thickness of the side wall 3 is measured at a position 60 mm above the upper surface of the great bar 2 and compared with the measured value when the raising member 5 is attached. The thickness was reduced by 1 mm. Therefore, the average wear amount M 1 per month of the sidewall 3 was 0.17 mm / month. This is referred to as Invention Example 1.

一方、発明例１で使用したＤＬ式焼結機の従来の操業実績を解析したところ、嵩上げ部材５を取り付ける前のサイドウォール３の同じ位置の平均摩耗量Ｎ1は0.5mm／月であった。これを従来例１とする。
発明例１と従来例１を対比すると、本発明を適用することによって、サイドウォールの摩耗を66％（＝100×〔Ｎ1−Ｍ1〕／Ｎ1）低減することができた。 On the other hand, when the conventional operation results of the DL type sintering machine used in Invention Example 1 were analyzed, the average wear amount N 1 at the same position of the sidewall 3 before attaching the raising member 5 was 0.5 mm / month. . This will be referred to as Conventional Example 1.
Comparing Invention Example 1 and Conventional Example 1, by applying the present invention, it was possible to reduce the wear of the sidewall by 66% (= 100 × [N 1 −M 1 ] / N 1 ).

＜実施例２＞
発明例１とは別のＤＬ式焼結機のパレット台車の端部グレートバー2aの上面に、断面形状が直角３角形の嵩上げ部材５を取り付けた（図２(a)参照）。嵩上げ部材５の高さＨは30mmとし、傾斜面６の傾斜角αは45°とした。そして、ＤＬ式焼結機を６ケ月間操業した後に、グレートバー２上面から上方60mmの位置でサイドウォール３の厚さを測定して、嵩上げ部材５を取り付けた時の測定値と比べたところ、厚さが0.8mm減少していた。したがって、サイドウォール３の１ケ月あたりの平均摩耗量Ｍ2は0.13mm／月であった。これを発明例２とする。 <Example 2>
A raising member 5 having a right-angled triangular cross section was attached to the upper surface of the end great bar 2a of the pallet truck of the DL type sintering machine different from the invention example 1 (see FIG. 2 (a)). The height H of the raising member 5 was 30 mm, and the inclination angle α of the inclined surface 6 was 45 °. And after operating DL type sintering machine for six months, when the thickness of the side wall 3 is measured at a position 60 mm above the upper surface of the great bar 2 and compared with the measured value when the raising member 5 is attached. The thickness was reduced by 0.8mm. Therefore, the average amount of wear M 2 per month of the sidewall 3 was 0.13 mm / month. This is referred to as Invention Example 2.

一方、発明例２で使用したＤＬ式焼結機の従来の操業実績を解析したところ、嵩上げ部材５を取り付ける前のサイドウォール３の同じ位置の平均摩耗量Ｎ2は0.5mm／月であった。これを従来例２とする。
発明例２と従来例２を対比すると、本発明を適用することによって、サイドウォールの摩耗を74％（＝100×〔Ｎ2−Ｍ2〕／Ｎ2）低減することができた。 On the other hand, when the conventional operation results of the DL type sintering machine used in Invention Example 2 were analyzed, the average wear amount N 2 at the same position of the sidewall 3 before attaching the raising member 5 was 0.5 mm / month. . This will be referred to as Conventional Example 2.
Comparing Invention Example 2 and Conventional Example 2, by applying the present invention, it was possible to reduce side wall wear by 74% (= 100 × [N 2 −M 2 ] / N 2 ).

１ パレット台車
２ グレートバー
2a 端部グレートバー
３ サイドウォール
４ 空気流
５ 嵩上げ部材
６ 傾斜面
７ 車輪 1 Pallet truck 2 Great bar
2a End Great Bar 3 Side Wall 4 Air Flow 5 Raising Member 6 Inclined Surface 7 Wheel

Claims (4)

ＤＬ式焼結機のパレット台車の底部に設置される一連のグレートバーのうち、前記パレット台車のサイドウォールに隣接する端部グレートバーの上面に、空気流に対する通風抵抗を増加するための嵩上げ部材を配設することを特徴とするサイドウォールの摩耗防止構造。   Of the series of great bars installed at the bottom of the pallet truck of the DL-type sintering machine, the raising member for increasing the ventilation resistance against the air flow on the upper surface of the end great bar adjacent to the side wall of the pallet truck A side wall wear prevention structure characterized by comprising: 前記嵩上げ部材が、前記パレット台車の中央側に傾斜面を有することを特徴とする請求項１に記載のサイドウォールの摩耗防止構造。   2. The sidewall wear prevention structure according to claim 1, wherein the raising member has an inclined surface on the center side of the pallet carriage. ＤＬ式焼結機のパレット台車の底部に設置される一連のグレートバーのうち、前記パレット台車のサイドウォールに隣接する端部グレートバーの上面に嵩上げ部材を配設して、前記サイドウォール近傍の空気流の風量を低減することを特徴とするサイドウォールの摩耗防止方法。   Among the series of great bars installed at the bottom of the pallet truck of the DL-type sintering machine, a raising member is disposed on the upper surface of the end great bar adjacent to the side wall of the pallet truck, A method for preventing side wall wear, comprising reducing the air volume of an air flow. 前記嵩上げ部材が、前記パレット台車の中央側に傾斜面を有し、前記サイドウォール近傍の空気流を前記パレット台車の中央側へ誘導することを特徴とする請求項３に記載のサイドウォールの摩耗防止方法。   4. The sidewall wear according to claim 3, wherein the raising member has an inclined surface on the center side of the pallet truck and guides an air flow in the vicinity of the sidewall to the center side of the pallet truck. Prevention method.
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Publication number Priority date Publication date Assignee Title
CN112050642A (en) * 2020-09-14 2020-12-08 东北大学 Ridge type sintering trolley and material distribution method thereof

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JP2000046475A (en) * 1998-07-28 2000-02-18 Nkk Corp Pallet truck for sintering machine
JP2000266473A (en) * 1999-01-12 2000-09-29 Hitachi Zosen Corp Pallet truck for sintering facility
JP2001248971A (en) * 2000-03-08 2001-09-14 Ottoo:Kk Sidewall of pallet truck for continuously sintering machine
JP2009168399A (en) * 2008-01-18 2009-07-30 Sumitomo Metal Ind Ltd Sintering machine pallet and grate bar pressing method

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JPS4889803A (en) * 1972-03-01 1973-11-24
JPS59124995U (en) * 1983-02-14 1984-08-22 株式会社佐藤製作所 Pallet truck in sintering equipment
JP2000046475A (en) * 1998-07-28 2000-02-18 Nkk Corp Pallet truck for sintering machine
JP2000266473A (en) * 1999-01-12 2000-09-29 Hitachi Zosen Corp Pallet truck for sintering facility
JP2001248971A (en) * 2000-03-08 2001-09-14 Ottoo:Kk Sidewall of pallet truck for continuously sintering machine
JP2009168399A (en) * 2008-01-18 2009-07-30 Sumitomo Metal Ind Ltd Sintering machine pallet and grate bar pressing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112050642A (en) * 2020-09-14 2020-12-08 东北大学 Ridge type sintering trolley and material distribution method thereof

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