JPH0815948B2 - Loading method for multi-brand sintering raw material powder ore - Google Patents
Loading method for multi-brand sintering raw material powder oreInfo
- Publication number
- JPH0815948B2 JPH0815948B2 JP2279135A JP27913590A JPH0815948B2 JP H0815948 B2 JPH0815948 B2 JP H0815948B2 JP 2279135 A JP2279135 A JP 2279135A JP 27913590 A JP27913590 A JP 27913590A JP H0815948 B2 JPH0815948 B2 JP H0815948B2
- Authority
- JP
- Japan
- Prior art keywords
- brand
- raw material
- layer
- average
- loading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002994 raw material Substances 0.000 title claims description 24
- 238000005245 sintering Methods 0.000 title claims description 13
- 238000011068 loading method Methods 0.000 title claims description 10
- 239000000843 powder Substances 0.000 title claims description 5
- 239000000203 mixture Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 description 9
- 238000007796 conventional method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は鉄鋼業や非鉄製錬業の上流工程である焼結原
料の粉鉱石や副原料、リサイクル原料等の多銘柄を多層
積付けるスタッキングアードにおけるベッディングパイ
ル法に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention is stacking for stacking multiple brands of powdered ore as a sintering raw material, an auxiliary raw material, and a recycling raw material, which are upstream processes of the steel industry and non-ferrous smelting industry. It concerns the bedding pile method in Ard.
〈従来の技術〉 粉鉱石や副原料、リサイクル原料（製鉄所内で発生し
て回収されるダスト等の鉄資源）等の例えば20〜30銘柄
程度の多銘柄を、積付軌上機械（以下、単にスタッカと
称する）により、例えば500〜600層の多層に積み付けて
ベッディングパイルを作る場合、積付方向（ベッド長手
方向）において均一断面になるように積み付け、積付層
断面を切り出して、焼結原料として払い出した場合に経
時的に成分変動、粒度変動ができるだけ少なくなるよう
に工夫している。<Prior art> For example, powder ores, auxiliary raw materials, recycled raw materials (iron resources such as dust generated and recovered in the steelworks), for example, 20 to 30 brands, For example, in the case of stacking in multiple layers of 500 to 600 layers to make a bedding pile, stacking should be done so as to have a uniform cross section in the stacking direction (bed longitudinal direction), and the stacking layer cross section should be cut out. In addition, when it is dispensed as a sintering raw material, it is devised so that the fluctuation of the components and the fluctuation of the particle size with time are minimized.
また、ベッディングパイルを払い出す軌条機械として
は、通常バケットホイールが２個で、更に均一な払出し
ができるように、パイル断面を掻き落とすハロー付きの
ブレンディングリクレーマ（以下、単にリクレーマと称
する）が用いられている。In addition, as a railroad machine for paying out bedding piles, a blending reclaimer (henceforth simply referred to as a reclaimer) with a harrow that scrapes the pile cross section so that a more uniform payout can be achieved is usually provided with two bucket wheels. It is used.
従って、第１図に示すように、両バケットホイールBW
がパイル断面を払い出す場合に、断面内での偏析を生じ
ないように、ベッディングパイルの積み付けを工夫する
ことが要求される。Therefore, as shown in FIG. 1, both bucket wheels BW
When paying out the pile cross section, it is required to devise the packing of the bedding pile so that segregation in the cross section does not occur.
そのため、例えば粉鉱石、副原料、リサイクル原料等
の多銘柄を、各銘柄の化学的特性（組成、結晶水、濡れ
性等）や物理的特性（粒度、比重、安息角等）を考慮し
て３種類に層別し、パイル下層部には焼結原料成分の平
均組成となる鉱石（以下、平均組成銘柄という）、中層
部には脈石成分（SiO2,MgO,Al2Ｏ3等）の多い鉱石又は
副原料、リサイクル原料（以下、高脈石銘柄という）、
上層部には脈石成分の少ない鉱石（以下、低脈石銘柄と
いう）を積み付ける。For this reason, for example, many brands of powdered ore, auxiliary materials, recycled materials, etc. should be considered in consideration of the chemical characteristics (composition, water of crystallization, wettability, etc.) and physical characteristics (particle size, specific gravity, angle of repose, etc.) of each brand. It is divided into three types, ores that have the average composition of sintering raw material components (hereinafter referred to as the average composition brand) in the lower pile layer, and gangue components (SiO 2 , MgO, Al 2 O 3 etc.) in the middle layer. Ore or secondary raw material, recycled raw material (hereinafter referred to as high gangue brand),
Ore with a low gangue component (hereinafter referred to as low gangue brand) is stacked in the upper layer.
第１図のリクレーマのベルトコンベヤが右側に移動す
る場合には、それぞれ矢印→で示す方向に移動しなが
ら、左側のバケットホイールBWが主として区間BCの高脈
石銘柄を払い出し、右側のバケットホイールBWが主とし
て区間EFの低脈石銘柄を払い出し、それらをリクレーマ
機内のベルトコンベヤで混合することにより、平均的な
成分として焼結工場へ送り込むことができる。When the belt conveyor of the reclaimer in Fig. 1 moves to the right side, the bucket wheel BW on the left side mainly pays out the high gangue brand in section BC while moving in the directions shown by arrows →, and the bucket wheel BW on the right side. Can mainly send out low gangue brands in section EF and mix them on the belt conveyor in the reclaimer machine to send them to the sintering plant as an average component.
反対にベルトコンベヤが左側に移動する場合には、そ
れぞれ矢印で示す方向に移動しながら、左側のバケッ
トホイールBWが低脈石銘柄のAB区間を、右側のバケット
ホイールBWは高脈石銘柄のDE区間を切出すことになる。On the contrary, when the belt conveyor moves to the left side, the bucket wheel BW on the left side moves the AB section of the low gangue brand and the bucket wheel BW on the right side moves the DE section of the high gangue brand while moving in the directions indicated by the arrows. The section will be cut out.
このようにして、１往復いずれの区間内においてもバ
ケットホイールBWで切り出し混合された焼結原料用粉鉱
石パイルは平均的組成を保つように工夫してある。In this way, the powder ore pile for sintering raw material cut out and mixed by the bucket wheel BW is devised so as to maintain an average composition in any one reciprocating section.
〈発明が解決しようとする課題〉 しかしながら、上述したように粉鉱石や副原料、リサ
イクル原料等のおよそ20〜30もの多銘柄を各銘柄の化学
的特性や物理的特性を考慮して例えば３種類に層別し
て、その３層構造で全体でおよそ500〜600層をスタッキ
ングする場合、ベッディングパイル長手方向の中間部で
は問題は起こらないが、スタッカの折り返し点のベッデ
ィング端部で次のような問題を引き起こす。<Problems to be solved by the invention> However, as described above, about 20 to 30 multi-brands such as powdered ore, auxiliary raw materials, and recycled raw materials are considered in consideration of the chemical properties and physical properties of each brand, for example, 3 types. When stacking about 500 to 600 layers in total with three layers, the problem does not occur at the middle part in the longitudinal direction of the bedding pile, but the following problems occur at the bedding end of the stacker folding point. cause.
すなわち、折り返し点が軌条ベルトコンベヤの進行方
向に逆の場合には銘柄の違いによる折り返し点からの惰
行走行距離はほとんど変わらないが、折り返し点が軌条
ベルトコンベヤの進行方向に順の場合には、銘柄の違い
により惰行走行距離が大幅に異なる。具体的には、一定
時間に一定体積の積付を行うために下層の比重が中程度
の平均組成銘柄積付の場合、折り返し点での惰行走行距
離は中程度、比重が比較的軽い中層の高脈石銘柄の場合
惰行走行距離は小、比重が比較的重い上層の低脈石銘柄
の場合は大となる。そのため、ベッド端部での積付層の
流れ込み、混合等により、その端部の断面は不均一な組
成となってしまうことは避けられなかった。That is, when the turning point is opposite to the traveling direction of the railway belt conveyor, the coasting distance from the turning point due to the difference of the brand hardly changes, but when the turning point is in the traveling direction of the railway belt conveyor, The coasting distance varies greatly depending on the brand. Specifically, in the case of average composition stock loading where the specific gravity of the lower layer is medium in order to load a fixed volume at a fixed time, the coasting distance at the turning point is medium and the average gravity of the middle layer is relatively light. In the case of a high gangue brand, the coasting distance is small, and in the case of the upper gangue brand which has a relatively high specific gravity, it is large. Therefore, it is unavoidable that the cross section of the end portion of the bed has a non-uniform composition due to inflow of the laminating layer at the end portion of the bed, mixing, and the like.
本発明は、ベッド端部においても、多銘柄・多層積付
け原料の均一化を図り、常に均一組成の原料が焼結工程
へ払い出すことができるようにすることを目的とするも
のである。It is an object of the present invention to make the raw materials for multi-brand / multi-layer stacking uniform even at the bed end so that raw materials having a uniform composition can always be discharged to the sintering step.
〈課題を解決するための手段〉 すなわち、本発明は、焼結原料となる多銘柄の粉鉱石
や副原料等を多層のベッディングパイルとして積み付け
るに際し、少なくとも平均組成銘柄と高脈石銘柄と低脈
石銘柄の３種類に層別し、積付軌条機械の動特性を考慮
し、積付軌条機械の走行折り返し点からの層別した層の
各積付銘柄毎の平均惰行走行距離を予め求めておき、こ
の値と層別した層の各積付銘柄毎の平均安息角と平均目
標層厚とか、積付各層毎の積付軌条機械の折り返し点を
設定することを特徴とする多銘柄焼結原料粉鉱石の積付
方法である。<Means for Solving the Problems> That is, the present invention, at the time of stacking multi-brand powdered ore and auxiliary raw materials as sintering raw materials as a multilayer bedding pile, at least an average composition brand and a high gangue brand By classifying into three types of low gangue brand, considering the dynamic characteristics of the stowage railway machine, the average coasting distance for each stowed brand of the stratified layer from the traveling turning point of the stowage railway machine in advance is considered. This value is calculated and the average angle of repose and the average target layer thickness for each loaded brand of the stratified stratum, or the turning point of the loaded rail machine for each loaded stratum, is set. This is a method of stacking sintering raw material powder ore.
〈作用〉 まず、本発明による具体的方法を第２図を用いて説明
する。<Operation> First, a specific method according to the present invention will be described with reference to FIG.
ここで、多銘柄をその化学的特性や物理的特性を考慮
して例えば下層部、中層部、上層部の３種類に層別し、
下層部に平均組成銘柄をｉ層積み付け、中層部に高脈石
銘柄をｊ層積み付け、上層部に低脈石銘柄をｋ層積み付
けし、それら下層部、中層部、上層部の総括的な平均積
み高さｈL,hM,hU、平均安息角αL，αM，αU、平均惰行
走行距離ａL,aM,aUをそれぞれ次のようにする。なお、
それぞれの底辺はｘL,xM,xUとする。Here, considering the chemical characteristics and physical characteristics of the multi-brand, for example, it is divided into three types of lower layer portion, middle layer portion and upper layer portion,
I layers of average composition brand are stacked in the lower layer, j layers of high gangue brand are stacked in the middle layer, and k layers of low gangue brand are stacked in the upper layer, and the lower layer, middle layer and upper layer are summarized. The average stacking heights h L , h M , h U , the average repose angles α L , α M , α U , and the average coasting distances a L , a M , a U are set as follows. In addition,
The base of each is x L , x M , x U.
・ 下層部の場合： 積付層数ｉ（ｉ＝１〜ｐ）、層ごとの積み高さｈi、
層ごとの安息角αi、層ごとの惰行走行距離ａiとする
と、以下の通りである。In the case of the lower layer part: the number of stacked layers i (i = 1 to p), the stacking height h i for each layer,
The angle of repose α i for each layer and the coasting travel distance a i for each layer are as follows.
・ 中層部の場合： 積付層数ｊ（ｊ＝１〜ｑ）、層ごとの積み高さｈj、
層ごとの安息角αj、層ごとの惰行走行距離ａjとする
と、以下の通りである。 -In the case of the middle layer: the number of stacked layers j (j = 1 to q), the stacking height h j for each layer,
The angle of repose α j for each layer and the coasting travel distance a j for each layer are as follows.
・ 上層部の場合： 積付層数ｋ（ｋ＝１〜ｒ）、層ごとの積み高さｈk、
層ごとの安息角αk、層ごとの惰行走行距離ａkとする
と、以下の通りである。 In the case of the upper layer part: the number of stacked layers k (k = 1 to r), the stacking height h k for each layer,
The angle of repose α k for each layer and the coasting travel distance a k for each layer are as follows.
ここで、全体積み高さｈと各層の平均安息角αについ
ては下記（１）式で表される。 Here, the total stacking height h and the average angle of repose α of each layer are expressed by the following equation (1).
ここで、ｈn，αnは既知であるから、上記（１）式よ
りｘnが求まる。また、平均惰行走行距離ａnを経験的に
求めておけば、下層部、中層部、上層部のそれぞれの設
定折り返し点（SPn）は、各層の中間部（ｘn/2）を便宜
上与えるものとすれば下記（２）式で求められる。 Here, since h n and α n are known, x n can be obtained from the above equation (1). Also, if the average coasting distance a n is empirically obtained, the set turn points (SP n ) of the lower layer portion, the middle layer portion, and the upper layer portion give the middle portion (x n / 2) of each layer for convenience. If so, it can be calculated by the following equation (2).
但し、SPnはベッド上面端部を基準とし、そこからベ
ッド側への距離とする設定折り返し点である。 However, SP n is a set turning point which is the distance from the bed upper surface end to the bed side.
また、通常、上層部から中層部、中層部から下層部へ
の流れ込みを防止するため、平均安息角αnはαL≧αM
≧αUとなるように銘柄を選ぶものとし、この条件を外
れた場合には最大値の平均安息角αを用いて、（１）式
より各層の底辺ｘnを求めるものとする。In addition, in order to prevent the flow from the upper part to the middle part and from the middle part to the lower part, the average angle of repose α n is usually α L ≧ α M
It is assumed that a brand is selected so that ≧ α U, and if this condition is not satisfied, the bottom side x n of each layer is calculated from the equation (1) using the maximum average angle of repose α.
また上記の場合に、便宜上ベッドを上、下方向に３分
割しているが、同様な考え方でｎ分割することも可能で
ある。Further, in the above case, the bed is divided into three parts in the upward and downward directions for convenience, but it is also possible to divide the bed into n parts in the same way.
このように各層ごとの積付軌条機械の惰行走行距離を
考慮して、各層ごとに折り返し点を設定しているので、
ベッディングパイル端部において稜線を段付きなく連続
して形成することができ、ベッド端部における積付層の
流れ込み、混合あるいは積付層の不足等がなくなり、ベ
ッディング端部の組成の均一化を図ることができる。In this way, considering the coasting distance of the loading rail machine for each layer, the turning point is set for each layer,
Ridges can be formed continuously at the edge of the bedding pile without steps, and the flow of the laminating layer at the edge of the bed, mixing or lack of the laminating layer is eliminated, and the composition of the edge of the bedding is made uniform. Can be planned.
〈実施例〉 平均組成銘柄を3mに積み付けする下層部と、高脈石銘
柄を3mに積み付けする中層部と、低脈石銘柄を5mに積み
付けする上層部の３層からなるベッディングパイルをス
タッカで積み付けする際に、従来法と本発明法で行っ
た。従来法でのベッディング端部の折り返し点は、第３
図に示すようにそれぞれの底辺をｘM＝ｘu＝3mとして積
み上げた。<Example> Beding consisting of three layers: a lower layer for loading an average composition brand in 3 m, a middle layer for loading a high gangue brand in 3 m, and an upper layer for loading a low gangue brand in 5 m When stacking the piles in the stacker, the conventional method and the method of the present invention were used. The folding point at the bedding end in the conventional method is the third
As shown in the figure, each base was stacked with x M = x u = 3 m.
本発明法では、第４図に示すように、前出（１）式、
（２）式に最大のα値を38°、ｈL＝3m,hM＝3m,hU＝5m
をそれぞれ与え、ｘL＝3.84m,xM＝3.84m,xU＝6.40m、更
にａL,aM,aUに経験値（ａL＝3.6m,aM＝2.0m,aU＝4.0m）
を用いて、SPL＝8.56m,SPM＝6.32m,SPU＝−0.8mを得
て、それぞれのSPL,SPM,SPUでスタッカに停止指令を出
すようにしてスタッキングを行った。In the method of the present invention, as shown in FIG.
The maximum α value in Eq. (2) is 38 °, h L = 3m, h M = 3m, h U = 5m
X L ＝ 3.84m, x M ＝ 3.84m, x U ＝ 6.40m, and a L , a M , a U have experience values (a L ＝ 3.6m, a M ＝ 2.0m, a U ＝ 4.0m)
Was used to obtain SP L = 8.56m, SP M = 6.32m, SP U = -0.8m, and stacking was performed by issuing a stop command to the stacker at each SP L , SP M , SP U. .
従来法で積んだベッディングパイル（4B-31），（4B-
32）と本発明法で積んだベッディングパイル（4B-33）
とを順次リクレーマで払出し、それぞれ焼結工場で焼結
した焼結鉱の成分のうち、酸性度を表すSiO2（wt％）お
よび塩基性度を表すExCaO（＝CaO−1.15SiO2＋0.63）
（wt％）の４時間ごとの経時変化を第５図に示した。Beding piles (4B-31), (4B-
32) and a bedding pile piled up by the method of the present invention (4B-33)
And were sequentially discharged by a reclaimer, and among the components of the sinter that were respectively sintered in the sintering plant, SiO 2 (wt%) indicating acidity and ExCaO (= CaO-1.15SiO 2 +0.63) indicating basicity. )
Fig. 5 shows the change with time (wt%) every 4 hours.
本発明法で積んだベッディングパイル（4B-33）と従
来法で積んだベッディングパイル（4B-32）のSiO2（wt
％）,ExCaO（wt％）のそれぞれの標準偏差σを比較する
と、いずれも本発明法での標準偏差が小さく、特に従来
法のベッディングパイル（4B-31）から（4B-32）に切り
換わった時点、すなわち従来法のベッド端部では急激な
ExCaO（wt％）の変動が見られるのに対して、従来法の
ベッディングパイル（4B-32）から本発明法のベッディ
ングパイル（4B-33）に切り換わった時点、すなわち本
発明法のベッド端部では急激なExCaO（wt％）の変動が
見られず、推移は安定しており、著しく成分の均一化が
図られていることが分かる。SiO 2 (wt) of the bedding pile (4B-33) loaded by the method of the present invention and the bedding pile (4B-32) loaded by the conventional method
%) And ExCaO (wt%) respectively, the standard deviations σ of the method of the present invention are small, and the standard deviations of the bedding piles (4B-31) to (4B-32) of the conventional method are particularly small. At the time of replacement, that is, at the bed end of the conventional method,
While the fluctuation of ExCaO (wt%) is seen, at the time when the bedding pile (4B-32) of the conventional method is switched to the bedding pile (4B-33) of the present invention, that is, in the method of the present invention. No sharp change in ExCaO (wt%) was observed at the edge of the bed, the transition was stable, and it can be seen that the components were remarkably homogenized.
〈発明の効果〉 以上説明したように、本発明によれば、多銘柄焼結用
の粉鉱石や副原料、リサイクル原料等を多層のベッディ
ングパイルとして積み付けを行う場合、ベッド長手方向
端部における不均一なベッディングを防止することがで
き、焼結鉱の品質安定化に大いに寄与する。<Effects of the Invention> As described above, according to the present invention, when stacking powdered ores for multi-brand sintering, auxiliary raw materials, recycled raw materials, etc. as a multilayer bedding pile, the bed longitudinal end It is possible to prevent non-uniform bedding in, and greatly contribute to stabilizing the quality of the sinter.
第１図はベッディングパイル断面とリクレーマのバケッ
トホイールの位置を示す説明図、第２図は本発明におけ
るベッディングパイル折り返し点を示す模式図、第３図
は従来法によるベッディングパイル端部を示す模式図、
第４図は本発明によるベッディングパイル端部を示す模
式図、第５図は切り出された原料組成の経時変化を示す
特性図である。FIG. 1 is an explanatory view showing a cross section of a bedding pile and a position of a bucket wheel of a reclaimer, FIG. 2 is a schematic diagram showing a turning point of a bedding pile in the present invention, and FIG. 3 is an end portion of a bedding pile by a conventional method. Schematic diagram showing
FIG. 4 is a schematic diagram showing the edge portion of the bedding pile according to the present invention, and FIG. 5 is a characteristic diagram showing the change over time in the composition of the raw material cut out.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 後藤 光喜 千葉県千葉市川崎町１番地 川崎製鉄株式 会社千葉製鉄所内 (56)参考文献 特開 平１−28124（ＪＰ，Ａ) 特開 昭58−197126（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuyoshi Goto 1 Kawasaki-cho, Chiba-shi, Chiba Kawasaki Steel Co., Ltd. Chiba Works (56) References JP-A 1-28124 (JP, A) JP-A 58- 197126 (JP, A)
Claims (1)
を多層のベッディングパイルとして積み付けるに際し、
少なくとも平均組成銘柄と高脈石銘柄と低脈石銘柄の３
種類に層別し、積付軌条機械の動特性を考慮し、積付軌
条機械の走行折り返し点からの層別した層の各積付銘柄
毎の平均惰行走行距離を予め求めておき、この値と層別
した層の各積付銘柄毎の平均安息角と平均目標層厚とか
ら、積付各層毎の積付軌条機械の折り返し点を設定する
ことを特徴とする多銘柄焼結原料粉鉱石の積付方法。1. When stacking multi-brand powdered ore or auxiliary raw material as a sintering raw material as a multi-layered bedding pile,
At least average composition brand, high gangue brand and low gangue brand 3
Taking into consideration the dynamic characteristics of the stowage railway machine, the average coasting distance for each stowed brand of each stratified stratum from the traveling turning point of the stowed railroad machine is calculated in advance and this value is used. Multi-brand sintering raw material powder ore characterized by setting the turning point of the loading rail machine for each loading layer from the average angle of repose for each loading brand and the average target layer thickness Loading method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2279135A JPH0815948B2 (en) | 1990-10-19 | 1990-10-19 | Loading method for multi-brand sintering raw material powder ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2279135A JPH0815948B2 (en) | 1990-10-19 | 1990-10-19 | Loading method for multi-brand sintering raw material powder ore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04159925A JPH04159925A (en) | 1992-06-03 |
| JPH0815948B2 true JPH0815948B2 (en) | 1996-02-21 |
Family
ID=17606922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2279135A Expired - Lifetime JPH0815948B2 (en) | 1990-10-19 | 1990-10-19 | Loading method for multi-brand sintering raw material powder ore |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0815948B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58197126A (en) * | 1982-05-12 | 1983-11-16 | Hitachi Ltd | Ore loading control system |
| JPS6428124A (en) * | 1987-07-22 | 1989-01-30 | Meidensha Electric Mfg Co Ltd | Automatic control for stacker |
-
1990
- 1990-10-19 JP JP2279135A patent/JPH0815948B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04159925A (en) | 1992-06-03 |
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