JP2000256758A - Method for charging sintering raw material - Google Patents

Method for charging sintering raw material

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Publication number
JP2000256758A
JP2000256758A JP5741699A JP5741699A JP2000256758A JP 2000256758 A JP2000256758 A JP 2000256758A JP 5741699 A JP5741699 A JP 5741699A JP 5741699 A JP5741699 A JP 5741699A JP 2000256758 A JP2000256758 A JP 2000256758A
Authority
JP
Japan
Prior art keywords
raw material
sintering raw
sintering
gas
charging
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.)
Withdrawn
Application number
JP5741699A
Other languages
Japanese (ja)
Inventor
Daisuke Shibata
大介 柴田
Tetsuzo Haga
徹三 芳我
Hiroyuki Sato
洋之 佐藤
Kazutomi Watanabe
一臣 渡邉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP5741699A priority Critical patent/JP2000256758A/en
Publication of JP2000256758A publication Critical patent/JP2000256758A/en
Withdrawn legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a charging method of sintering raw material, with which the segregating state of the sintering raw material charged on a sintering pallet is improved. SOLUTION: An opening part 3 is arranged at the downstream side of a dropping position 11 on a charging chute 4 for sintering raw material 13 supplied from a feeder 2 and also, a gas blowing nozzle 12 is arranged above the opening part 3, and middle and coarse granular sintering raw materials 16, 17 and fine granular sintering raw material 14 are separated by blowing the gas to the sintering raw material 13 from the gas blowing nozzle 12. The separated middle and coarse granular sintering raw materials 16, 17 are slidingly dropped on the charging chute 4 and charged into a sintering pallet 6. When the fine granular sintering material 14 is dropped onto the surface layer from the opening part 3, an angle γ forming the advancing direction of the blowing gas from a gas blowing nozzle 12 to the flowing direction of the sintering raw material 13 during slidingly dropping on the charging chute 4 is regulated to 80-100 deg..

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は焼結パレット上へ焼
結原料を偏析装入するための装入方法に関するものであ
る。
The present invention relates to a charging method for segregating and charging a sintering raw material onto a sintering pallet.

【0002】[0002]

【従来の技術】DL型焼結機においては、無端鎖状の焼
結パレットに原料装入装置によって焼結原料を装入し、
この装入原料層(焼結原料層)の表面に点火炉で着火す
ると共にウインドボックスを介して排風機によって装入
原料層の上方部の空気を吸引することにより、焼結パレ
ットの移動に伴い焼結原料中に配合したコークスを燃焼
し、順次、焼結原料の焼結がおこなわれ、排鉱部で焼結
パレットより排出される。この装入装置にて焼結パレッ
ト上に装入された焼結原料の上層部は、保熱効果が少な
く、急冷等により脆弱な焼結鉱となるため、下層部に比
し燃料分(コークス)を多く、かつ粒度が小さくなるよ
うに偏析装入することが焼結鉱の品質及び生産性を向上
させる。上層に微・細粒焼結原料及び微・細粒粉コーク
スを多量に装入させる方法として、図2に示すように、
気体を焼結原料に吹き付けて偏析させる方法が従来から
実施されて来た。しかし、この方法では、上層の微・細
粒焼結原料及び微・細粒粉コークスを多量に偏析させる
ために気体吹き付け量を過度に増加すると、装入シュー
ト下端より滑降中の原料流束が吹き付けられた気体によ
って気体吹き付け方向へ曲げられ、中・粗粒焼結原料は
装入原料層の上・中層へ到達し、到達点から下層へ向か
って装入原料層の傾斜に沿って流れ落ちる。この結果、
本来、下層へ装入すべき粗粒の一部が焼結ベッドの中層
へ装入され、粗粒の偏析乱れが発生してしまう。よっ
て、気体吹き付け量の増加は一定の効果はあるものの、
その吹き付け量の増加と共に装入原料層の偏析乱れが生
じるため焼結鉱の歩留、強度向上が十分図られていると
は言いがたいものであった。
2. Description of the Related Art In a DL type sintering machine, a sintering raw material is charged into an endless chain-shaped sintering pallet by a raw material charging device.
The surface of the charge material layer (sintering material layer) is ignited by an ignition furnace, and the air above the charge material layer is sucked by a blower through a wind box. The coke blended in the sintering raw material is burned, and the sintering raw material is sequentially sintered and discharged from the sintering pallet in the mining section. The upper portion of the sintering raw material charged on the sintering pallet by this charging device has little heat retention effect and becomes brittle sinter due to rapid cooling, etc. ) And segregation charging to reduce the particle size improve the quality and productivity of the sinter. As a method of charging a large amount of fine / fine-grained sintering raw material and fine / fine-grained powder coke in the upper layer, as shown in FIG.
Conventionally, a method of spraying a gas to a sintering raw material to cause segregation has been practiced. However, in this method, when the amount of gas sprayed is excessively increased in order to segregate a large amount of the fine and fine-grained sintering raw material and the fine and fine-grained powder coke, the raw material flux flowing down from the lower end of the charging chute is increased. The blown gas is bent in the gas blowing direction, and the medium / coarse-grained sintering material reaches the upper and middle layers of the charged material layer, and flows down along the slope of the charged material layer from the reaching point to the lower layer. As a result,
Originally, part of the coarse particles to be charged into the lower layer is charged into the middle layer of the sintering bed, and the segregation disorder of the coarse particles occurs. Therefore, although increasing the amount of gas blowing has a certain effect,
It is hard to say that the yield and strength of the sintered ore have been sufficiently improved because the amount of the spray increases the segregation disorder of the charged raw material layer.

【0003】[0003]

【発明が解決しようとする課題】本発明は、焼結パレッ
ト上に装入した焼結原料の偏析状態を向上させる焼結原
料の装入方法を提供することを課題とするものである。
SUMMARY OF THE INVENTION An object of the present invention is to provide a method for charging a sintering raw material which improves the segregation state of the sintering raw material charged on a sintering pallet.

【0004】[0004]

【課題を解決するための手段】本発明は、上記課題を解
決するためになされたものであり、その手段は、給鉱ホ
ッパーからフィーダーを介して落下供給される焼結原料
を装入シュートを介して焼結パレット上へ装入する方法
において、前記フィーダーから供給される焼結原料の前
記装入シュート上落下位置の下流側に開口を設けると共
に、該開口の上方に気体吹き付けノズルを設け、この気
体吹き付けノズルから気体を前記焼結原料に吹き付ける
ことにより、中・粗粒焼結原料と微・細粒焼結原料とに
分離し、この分離した中・粗粒焼結原料を前記装入シュ
ート上を滑降させて前記焼結パレット上に装入し、その
表層上に前記開口より落下した微・細粒焼結原料を装入
する際、前記気体吹き付けノズルから吹き付ける気体の
進行方向と前記装入シュート上を滑降中の焼結原料の流
れ方向との成す角度を80度から100度とするもので
ある。
Means for Solving the Problems The present invention has been made to solve the above-mentioned problems, and includes means for feeding a sintering raw material dropped and supplied from a feed hopper through a feeder to a chute. In the method of charging on the sintering pallet through, an opening is provided on the downstream side of the drop position on the charging chute of the sintering raw material supplied from the feeder, and a gas blowing nozzle is provided above the opening, A gas is blown from the gas blowing nozzle to the sintering raw material to separate it into a medium / coarse-grain sintering raw material and a fine / fine-grained sintering raw material. Sliding down on the chute and charged on the sintering pallet, when loading the fine and fine sintering raw material dropped from the opening on the surface layer, the direction of the gas blown from the gas blowing nozzle and the Dress The angle formed by the upper chute to the flow direction of the sintering material in the downhill it is an 100 degrees 80 degrees.

【0005】図2に示すように、焼結原料の装入装置7
aの装入シュート4aは通常、水平に対して40〜60
度の角度αに設置しているため、その装入シュート4a
上を滑降する焼結原料13も水平に対して40〜60度
の角度を有している。一方、焼結原料13に気体を吹き
付けるノズル(気体吹き付けノズル)12aは、水平面
に平行に設置されているため、焼結原料13の流れ方向
と吹き付け気体の進行方向において成す角度βは、12
0〜140度である。ここで、吹き付け気体の推進力を
ベクトルに分解したものを図2に示す。吹き付け気体の
推進力は、装入シュート4a下端を滑降中の焼結原料1
3の流れと向かい合うベクトルAと該焼結原料13の流
れに対して垂直方向のベクトルBに分離される。ベクト
ルAは、焼結原料13の流れを押し戻す力であり、焼結
原料13の分級にはほとんど寄与しない。ベクトルB
は、焼結原料13から微・細粒を分離する力となる。よ
って、吹き付け気体のベクトルBが大きいほど、すなわ
ち吹き付け気体の進行方向と焼結原料流れの成す角度が
90度に近いほど焼結原料13からの微・細粒の分離が
容易となると言える。
[0005] As shown in FIG.
The charging chute 4a is normally 40-60
Because it is installed at an angle α of degrees, its charging chute 4a
The sintering raw material 13 sliding down also has an angle of 40 to 60 degrees with respect to the horizontal. On the other hand, since the nozzle (gas blowing nozzle) 12a for blowing gas to the sintering raw material 13 is installed in parallel with the horizontal plane, the angle β formed between the flow direction of the sintering raw material 13 and the direction of travel of the blowing gas is 12
0 to 140 degrees. FIG. 2 shows the propulsion force of the blowing gas decomposed into vectors. The propelling force of the blowing gas is based on the sintering raw material 1 sliding down the lower end of the charging chute 4a.
3 and a vector B perpendicular to the flow of the sintering raw material 13. The vector A is a force for pushing back the flow of the sintering raw material 13 and hardly contributes to the classification of the sintering raw material 13. Vector B
Is a force for separating fine and fine grains from the sintering raw material 13. Therefore, it can be said that the larger the vector B of the blowing gas is, that is, the closer the angle between the advancing direction of the blowing gas and the flow of the sintering raw material is to 90 degrees, the easier the separation of fine and fine particles from the sintering raw material 13 becomes.

【0006】本発明者は上記したベクトルBを大きくす
ると微・細粒の分離性が良くなる点に着目し、吹き付け
気体を焼結原料13の流れに対して80度から100度
に吹き付けることにより、気体吹き付け量を過度に増す
ことなく、すなわち、粗粒焼結原料17の装入乱れを抑
制して、焼結原料13から微・細粒の分離を可能とし
た。すなわち、図1に示すように、装入シュート4に開
口3を設け、この開口3の上方に装入シュート4上を滑
降する焼結原料13に向かって80度から100度に気
体を吹き付けるノズル(気体吹き付けノズル)12を設
け、滑降中の焼結原料13より微・細粒焼結原料14を
分離するものである。
The present inventor has noticed that the larger the vector B is, the better the separation of fine and fine particles becomes. By blowing the blowing gas from 80 degrees to 100 degrees with respect to the flow of the sintering raw material 13, In addition, it was possible to separate fine and fine particles from the sintering raw material 13 without excessively increasing the gas blowing amount, that is, by suppressing the charging disturbance of the coarse sintering raw material 17. That is, as shown in FIG. 1, an opening 3 is provided in the charging chute 4, and a nozzle for blowing a gas from 80 degrees to 100 degrees toward the sintering raw material 13 sliding down on the charging chute 4 above the opening 3. A (gas blowing nozzle) 12 is provided to separate the fine and fine-grained sintering raw material 14 from the sintering raw material 13 during sliding.

【0007】次に、吹き付け気体を焼結原料13の流れ
に対して80度から100度に吹き付ける理由を以下に
述べる。装入原料層8の上層9に装入される微・細粒焼
結原料14(1mm以下の粒度)の割合は、40%以上
の割合であれば、焼結鉱の歩留、強度を高く一定に維持
できる。しかし、微・細粒焼結原料14の割合が、40
%より低下すると焼結鉱の歩留、強度が極端に低下する
場合がある。図3に気体吹き付け角度γと装入原料層の
上層中1mm以下の粒度の割合の関係を示す。図3よ
り、気体吹き付け角度γを80度以上かつ100度以下
とすると1mm以下粒度の割合を40%以上に維持出来
る。よって、本発明では、吹き付け気体を焼結原料13
の流れに対して80度から100度に吹き付けることと
した。また、吹き付け気体を焼結原料13に吹き付ける
際、この気体が吹き付けられた焼結原料13と焼結パレ
ット6に装入した焼結原料の上面との距離が充分にない
と、微・細粒焼結原料14の分離が不可能になることか
ら、フィーダー2から供給される焼結原料13の装入シ
ュート4上落下位置11の下流側に開口3を設け、この
開口3の上方に設けた気体吹き付けノズル12から気体
を焼結原料13に吹き付ける様にしたものである。
Next, the reason why the blowing gas is blown from 80 degrees to 100 degrees with respect to the flow of the sintering raw material 13 will be described below. If the ratio of the fine and fine-grained sintering raw material 14 (grain size of 1 mm or less) charged to the upper layer 9 of the charging raw material layer 8 is a ratio of 40% or more, the yield and strength of the sintered ore are increased. Can be kept constant. However, the ratio of the fine / fine grain sintering raw material 14 is 40
%, The yield and strength of the sintered ore may be extremely reduced. FIG. 3 shows the relationship between the gas blowing angle γ and the ratio of the particle size of 1 mm or less in the upper layer of the charged material layer. As shown in FIG. 3, when the gas blowing angle γ is 80 degrees or more and 100 degrees or less, the ratio of the particle size of 1 mm or less can be maintained at 40% or more. Therefore, in the present invention, the blowing gas is
Is sprayed from 80 degrees to 100 degrees. When the blowing gas is blown onto the sintering raw material 13, if the distance between the sintering raw material 13 blown by the gas and the upper surface of the sintering raw material charged into the sintering pallet 6 is not sufficient, fine and fine particles Since the separation of the sintering raw material 14 becomes impossible, the opening 3 is provided downstream of the dropping position 11 on the loading chute 4 of the sintering raw material 13 supplied from the feeder 2, and the opening 3 is provided above the opening 3. The gas is blown from the gas blowing nozzle 12 to the sintering raw material 13.

【0008】[0008]

【発明の実施の形態】次に本発明の請求項に対応した実
施の形態について説明する。本発明の一実施の形態に係
る焼結原料の装入方法を図1にて説明する。図1は、フ
ィーダー2の下方に装入シュート4(巾:5000m
m)を設け、フィーダー2から落下供給される装入シュ
ート4上の焼結原料13の落下位置11の下流側に開口
3(開口サイズ=巾:5000mm、長:50〜300
mm)を設け、上流側シュート5U 上を滑降して開口3
上に達した焼結原料13に、その流れ方向と吹き付け気
体の流れ方向の成す角度γが80度から100度となる
ように気体を吹き付けるノズル12(風量:50〜30
0m3 /分)を開口3の上方に設けた焼結原料13の装
入装置7である。表1に示す粒度分布を有する焼結原料
13(コークスを含む)を給鉱ホッパー1内よりフィー
ダー2で切り出して上流側シュート5U へ供給する。こ
の焼結原料13は、開口3の上方に達した際にノズル1
2によって気体を吹き付けられる。そして、焼結原料1
3中の中粒焼結原料(5〜1mm)16及び粗粒焼結原
料(+5mm)17は開口3より落下せずに下流側シュ
ート5L に乗り、該下流側シュート5L 上を滑降して焼
結パレット6へ層厚450〜600mm程度(下層1
0)に装入される。
Next, an embodiment according to the present invention will be described. A method for charging a sintering raw material according to one embodiment of the present invention will be described with reference to FIG. FIG. 1 shows a charging chute 4 (width: 5000 m) below the feeder 2.
m), and an opening 3 (opening size = width: 5000 mm, length: 50 to 300) is provided on the downstream side of the drop position 11 of the sintering raw material 13 on the charging chute 4 that is dropped and supplied from the feeder 2.
mm), slide down 5 U on the upstream chute, and
The nozzle 12 (gas volume: 50 to 30) for blowing gas onto the sintering raw material 13 that has reached the upper side so that the angle γ between the flow direction of the sintering raw material 13 and the flow direction of the blowing gas becomes 80 to 100 degrees.
(0 m 3 / min) above the opening 3. The sintered material 13 having a particle size distribution shown in Table 1 (including coke) are cut out feeder 2 from Kyuko hopper within 1 supplied to the upstream side chute 5 U. When the sintering raw material 13 reaches above the opening 3, the nozzle 1
2 blows gas. And sintering raw material 1
The medium-sized sintering raw material (5 to 1 mm) 16 and the coarse-grained sintering material (+5 mm) 17 in No. 3 do not fall from the opening 3 but get on the downstream chute 5 L and slide down on the downstream chute 5 L. To the sintered pallet 6 with a layer thickness of about 450 to 600 mm (lower layer 1
0).

【0009】[0009]

【表1】 [Table 1]

【0010】一方、微・細粒焼結原料14(−1mm)
は、開口3の上方で気体の進行方向に沿って飛ばされる
ため、開口3を通過して落下し、焼結パレット6上の中
粒焼結原料16、粗粒焼結原料17の表層上へ層厚10
〜50mm程度(上層9)に装入される。その結果、焼
結パレット6上の装入原料層8の全層厚は460〜65
0mm程度となる。このように装入シュート4上を滑降
中の原料流束に対して80度から100度に気体を吹き
付けているため、吹き付けた気体のほぼ全量が、焼結原
料13から微・細粒の分離に使用されるため、過度に気
体吹き付け量を増加させなくてもよく、上層9に微・細
粒焼結原料14を多量に偏析させることが出来ると共
に、下層10の偏析乱れも起こさないで焼結原料13の
装入が可能である。
On the other hand, fine and fine grain sintered raw material 14 (-1 mm)
Is dropped along the direction of gas flow above the opening 3, falls through the opening 3, and falls on the surface layer of the medium-grain sintering raw material 16 and the coarse-grained sintering raw material 17 on the sintering pallet 6. Layer thickness 10
It is charged to about 50 mm (upper layer 9). As a result, the total thickness of the charged material layer 8 on the sintering pallet 6 is 460-65.
It is about 0 mm. As described above, since the gas is blown from 80 degrees to 100 degrees with respect to the raw material flux flowing down on the charging chute 4, almost all of the blown gas is separated from the sintering raw material 13 into fine and fine particles. Therefore, it is not necessary to excessively increase the amount of gas blown, so that a large amount of the fine and fine-grained sintering raw material 14 can be segregated in the upper layer 9 and the sintering can be performed without causing segregation disturbance of the lower layer 10. The charging of the binding material 13 is possible.

【0011】[0011]

【実施例】本発明の実施例を表2、表3を参照して説明
する。表2は、装入原料層の層高方向において上層(表
層より50mm深さまで)、中層(表層50mmから3
00mmm深さまで)、下層(上、中層を除いた層)の
粒度分布を測定したものである。実施例1〜3と比較例
1、2は、寸法が5000mm(幅)X150(長さ)
の開口3を有する装入シュート4を使用し、装入シュー
ト角度αは50度である。また従来例は、寸法が500
0mm(幅)のシュートを使用し、装入シュート角度α
は50度である。
Embodiments of the present invention will be described with reference to Tables 2 and 3. Table 2 shows that the upper layer (from the surface layer to a depth of 50 mm) and the middle layer (from the surface layer of 50 mm to 3 mm) in the height direction of the charged material layer.
The particle size distribution was measured for the lower layer (up to the depth of 00 mm) and the lower layer (the layer excluding the upper and middle layers). The dimensions of Examples 1 to 3 and Comparative Examples 1 and 2 are 5000 mm (width) X 150 (length).
Is used, and the charging chute angle α is 50 degrees. In the conventional example, the dimension is 500
Using a chute of 0 mm (width), the charging chute angle α
Is 50 degrees.

【0012】[0012]

【表2】 [Table 2]

【0013】[0013]

【表3】 [Table 3]

【0014】実施例1〜3は、従来例に比較して上層中
の微・細粒(−1mm)割合が多くなっている。また、
中層中の粗粒(+5mm)割合が少なく、偏析乱れが小
さくなっている。更に、比較例1は気体吹き付け角度が
本発明の下限を下回った例であり、比較例2は気体吹き
付け角度が本発明の上限を上回った例であり、両方とも
実施例1〜3と比較して上層中の微・細粒(−1mm)
割合が少なくなっている。次に、実施例1〜3と従来
例、比較例1、2における焼結歩留と焼結鉱の強度を表
3にて説明する。実施例1〜3は従来例、比較例1、2
と比較して焼結歩留と焼結鉱強度共に向上している。
In Examples 1 to 3, the ratio of fine and fine grains (-1 mm) in the upper layer is larger than that of the conventional example. Also,
The ratio of coarse particles (+5 mm) in the middle layer is small, and the segregation disturbance is small. Furthermore, Comparative Example 1 is an example in which the gas blowing angle is lower than the lower limit of the present invention, and Comparative Example 2 is an example in which the gas blowing angle is higher than the upper limit of the present invention. And fine grains in the upper layer (-1 mm)
The percentage is low. Next, Table 3 shows the sintering yield and the strength of the sinter in Examples 1 to 3, the conventional example, and Comparative Examples 1 and 2. Examples 1 to 3 are conventional examples and Comparative Examples 1 and 2
The sintering yield and the sinter strength are both improved as compared with.

【0015】[0015]

【発明の効果】以上説明したように本発明は、装入シュ
ート上を滑降中の焼結原料に対して気体を80度から1
00度の角度にて吹き付けて、微・細粒焼結原料を開口
より落下させるもので、過度に気体を吹き付けることが
ないため、粗粒の装入乱れを抑制して、焼結パレット上
に装入した焼結原料の偏析状態を良好にすることにより
焼結鉱の歩留、強度を向上させるものであり、この分野
における効果は大きい。
As described above, according to the present invention, the gas is discharged from 80 degrees to 1 degree with respect to the sintering raw material which is sliding down on the charging chute.
Spray at an angle of 00 degrees to drop the fine and fine sintering raw material from the opening. By improving the segregation state of the charged sintering raw material, the yield and strength of the sinter are improved, and the effect in this field is great.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施の形態に係る焼結原料の装入方
法に適用される装入装置の説明図である。
FIG. 1 is an explanatory diagram of a charging device applied to a method for charging a sintering raw material according to an embodiment of the present invention.

【図2】従来例に係る焼結原料の装入方法に適用される
装入装置の説明図である。
FIG. 2 is an explanatory view of a charging apparatus applied to a method for charging a sintering raw material according to a conventional example.

【図3】気体吹付け角度と上層中1.0mm以下粒度割
合の関係の説明図である。
FIG. 3 is an explanatory diagram of a relationship between a gas blowing angle and a particle size ratio of 1.0 mm or less in an upper layer.

【符号の説明】[Explanation of symbols]

α:装入シュート角度、γ:吹き付け気体の進行方向と
装入シュート上の原料の流れ方向との成す角度、1:給
鉱ホッパー、2:フィーダー、3:開口、4:装入シュ
ート、5U :上流側シュート、5L :下流側シュート、
6:焼結パレット、7:原料装入装置、8:装入原料
層、9:上層、10:下層、11:原料落下位置、1
2:気体吹き付けノズル、13:焼結原料、14:微・
細粒焼結原料、16:中粒焼結原料、17:粗粒焼結原
α: charging chute angle, γ: angle formed between the traveling direction of the blowing gas and the flow direction of the raw material on the charging chute, 1: feed hopper, 2: feeder, 3: opening, 4: charging chute, 5 U : Upstream chute, 5 L : Downstream chute,
6: sintering pallet, 7: raw material charging device, 8: charged raw material layer, 9: upper layer, 10: lower layer, 11: raw material drop position, 1
2: Gas blowing nozzle, 13: Raw material for sintering, 14: Fine
Fine-grained sintering material, 16: medium-grained sintering material, 17: coarse-grained sintering material

───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 洋之 大分県大分市大字西ノ洲1番地 新日本製 鐵株式会社大分製鐵所内 (72)発明者 渡邉 一臣 大分県大分市大字西ノ洲1番地 新日本製 鐵株式会社大分製鐵所内 Fターム(参考) 4K001 AA10 BA04 CA41 GA10 GB01 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Hiroyuki Sato 1 Nishinosu, Oita, Oita City, Oita Prefecture Inside Nippon Steel Corporation Oita Works (72) Inventor Kazuomi Watanabe 1 Nishinosu, Oita City, Oita Prefecture New Japan 4K001 AA10 BA04 CA41 GA10 GB01 F-term (reference) in Oita Works of Steel Corporation

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 給鉱ホッパーからフィーダーを介して落
下供給される焼結原料を装入シュートを介して焼結パレ
ット上へ装入する方法において、前記フィーダーから供
給される焼結原料の前記装入シュート上落下位置の下流
側に開口を設けると共に、該開口の上方に気体吹き付け
ノズルを設け、この気体吹き付けノズルから気体を前記
焼結原料に吹き付けることにより、中・粗粒焼結原料と
微・細粒焼結原料とに分離し、この分離した中・粗粒焼
結原料を前記装入シュート上を滑降させて前記焼結パレ
ット上に装入し、その表層上に前記開口より落下した微
・細粒焼結原料を装入する際、前記気体吹き付けノズル
から吹き付ける気体の進行方向と前記装入シュート上を
滑降中の焼結原料の流れ方向との成す角度を80度から
100度としたことを特徴とする焼結原料の装入方法。
1. A method of charging a sintering raw material dropped and supplied from a feed hopper via a feeder onto a sintering pallet via a charging chute, wherein the loading of the sintering raw material supplied from the feeder is performed. An opening is provided on the downstream side of the falling position on the entrance chute, and a gas blowing nozzle is provided above the opening, and a gas is blown from the gas blowing nozzle to the sintering raw material, so that the medium- and coarse-grained sintering raw material・ Separated into fine-grained sintering raw material, this separated medium / coarse-grained sintering raw material was slid down on the charging chute and charged on the sintering pallet, and dropped on the surface layer from the opening. When charging the fine and fine-grained sintering raw material, the angle between the advancing direction of the gas blown from the gas blowing nozzle and the flow direction of the sintering raw material while sliding down on the charging chute is 80 to 100 degrees. Did A method for charging a sintering raw material characterized by the following.
JP5741699A 1999-03-04 1999-03-04 Method for charging sintering raw material Withdrawn JP2000256758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5741699A JP2000256758A (en) 1999-03-04 1999-03-04 Method for charging sintering raw material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5741699A JP2000256758A (en) 1999-03-04 1999-03-04 Method for charging sintering raw material

Publications (1)

Publication Number Publication Date
JP2000256758A true JP2000256758A (en) 2000-09-19

Family

ID=13055056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5741699A Withdrawn JP2000256758A (en) 1999-03-04 1999-03-04 Method for charging sintering raw material

Country Status (1)

Country Link
JP (1) JP2000256758A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108088398A (en) * 2016-11-23 2018-05-29 中冶长天国际工程有限责任公司 A kind of injection assisted sintering method combustion measurement device and measuring method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108088398A (en) * 2016-11-23 2018-05-29 中冶长天国际工程有限责任公司 A kind of injection assisted sintering method combustion measurement device and measuring method

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