JPS6124447B2 - - Google Patents
Info
- Publication number
- JPS6124447B2 JPS6124447B2 JP6409878A JP6409878A JPS6124447B2 JP S6124447 B2 JPS6124447 B2 JP S6124447B2 JP 6409878 A JP6409878 A JP 6409878A JP 6409878 A JP6409878 A JP 6409878A JP S6124447 B2 JPS6124447 B2 JP S6124447B2
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- hopper
- horizontal
- furnace
- seal
- 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
Links
- 239000002994 raw material Substances 0.000 claims description 62
- 239000002184 metal Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 description 4
- 230000032258 transport Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
- C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/20—Arrangements of devices for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0033—Charging; Discharging; Manipulation of charge charging of particulate material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/10—Charging directly from hoppers or shoots
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/10—Charging directly from hoppers or shoots
- F27D2003/105—Charging directly from hoppers or shoots using shutters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
【発明の詳細な説明】
本発明は高炉の炉頂装入装置において、縦形の
ホツパーをなくして横形とすることにより炉頂装
入装置の機高を著しく低くし、且つ炉内への原料
の切り出し量の制御性の増大化を図り、しかも原
料の落下衝突による粉化を防止して炉の操業性の
増大を図ることを目的としてなしたものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is a top charging device for a blast furnace. By eliminating the vertical hopper and using a horizontal hopper, the height of the top charging device can be significantly lowered, and the material can be easily transferred into the furnace. This was done with the aim of increasing the controllability of the amount of cut out, and also preventing the raw material from becoming powder due to falling collisions, thereby increasing the operability of the furnace.
従来の代表的な炉頂装入装置としては、例えば
第1図及び第2図に示すようなものがある。即
ち、第1図のものはバルブシール形の炉頂装入装
置であり、装入コンベヤaで運搬されて来た原料
は、大気に連通する固定ホツパーbのゲートc上
に一旦溜められた後、上部に設けたシール弁dと
下部の小ベルeによりガスシールを行つて均排圧
可能に構成された小ベルホツパーfに原料分配器
gを介して分配投入され、更に大ベルhを備えた
大ベルホツパーiを介して炉内jに装入されるよ
うになつている。第2図のものはベルなし式の炉
頂装入装置であり、前記第1図のものが固定ホツ
パー、小ベルホツパー、大ベルホツパーの順に縦
に直列に配列されているのに対し、並設してなる
原料ホツパーk,k′が上部シール弁l及び下部シ
ール弁mを備えて均排圧可能に構成されており、
装入コンベヤaで運ばれて来た原料が、上記原料
ホツパーk,k′の均排圧設備により圧力調整され
ながら装入口n及び原料分配器oを介して炉内j
に分配装入されるようになつている。 As a typical conventional furnace top charging device, there is one shown in FIGS. 1 and 2, for example. That is, the one in Fig. 1 is a valve seal type furnace top charging device, in which the raw material transported by the charging conveyor a is once stored on the gate c of a fixed hopper b that communicates with the atmosphere. The raw material was distributed through a distributor g to a small bell hopper f, which was configured to perform gas sealing and equalize pressure by a seal valve d provided at the top and a small bell e at the bottom, and was further equipped with a large bell h. It is designed to be charged into the furnace j via a large bell hopper i. The one in Figure 2 is a top charging device without a bell, and while the one in Figure 1 has a fixed hopper, a small bell hopper, and a large bell hopper arranged vertically in series in that order, the one in Figure 1 has a fixed hopper, a small bell hopper, and a large bell hopper arranged vertically in this order. The raw material hoppers k and k' are equipped with an upper seal valve l and a lower seal valve m so as to be able to equalize and discharge the pressure.
The raw material conveyed by the charging conveyor a is pressure-adjusted by the pressure equalization equipment of the raw material hoppers k and k', and is then passed through the charging port n and the raw material distributor o into the furnace j.
It is now being distributed and charged.
しかし乍ら、上記各従来例のものは、夫々の従
来例に備えられた各ホツパーが、上から原料を投
入して順次堆積させ、投入完了により下部から切
り出す即ち一時的原料溜めであり、原料の重力落
下に頼つた排出構造であるため、下部切り出し
部、堆積部、上部原料投入部が縦配列となり、従
つて原料装入装置の機高が非常に高くなつてい
た。このように機高が高いために前記従来例にお
いては、地上からの原料運搬設備、炉頂櫓、上昇
管、下降管にする設備費が増加し、更に原料が自
由落下することにより衝突して炉内機器が磨耗す
ると共に、原料粉化が起り炉内での原料粒子間の
ガス流れが悪くなつて高炉操業性が劣る、等の問
題点を有していた。また上記したように原料の落
下衝撃による磨耗、粉化現象は、互にこすれ合う
場合に較べ5〜10倍になり、衝撃エネルギーとの
関数であるために落下する高さが高いほど著しく
なつていた。 However, in each of the above-mentioned conventional examples, each hopper provided in each conventional example is a temporary raw material reservoir, in which the raw material is charged from above, deposited sequentially, and cut out from the lower part when the charging is completed. Since the discharge structure relies on gravity falling, the lower cutting section, the depositing section, and the upper raw material input section are arranged vertically, and the height of the raw material charging device is therefore very high. Due to the high height of the machine, in the conventional example, the cost of equipment for transporting raw materials from the ground, furnace top turret, rising pipes, and descending pipes increases, and furthermore, the free falling of raw materials can cause collisions. In addition to the equipment in the furnace being worn out, the raw material is powdered and the gas flow between the raw material particles in the furnace is poor, resulting in poor blast furnace operability. Furthermore, as mentioned above, the abrasion and pulverization phenomena due to falling impact of raw materials are 5 to 10 times greater than when they rub against each other, and because it is a function of impact energy, the higher the falling height, the more significant the phenomenon. Ta.
本発明は、上記従来方式のもつ問題点を解決し
ようとしてしてなしたもので、高炉炉頂部にガス
シール金物を設け、該ガスシール金物の側部に、
截頭円錐形状を有し、且つその底部が大径側に対
して、小径側の方が低くなるように支持してな
り、然も回転駆動装置によりその軸心を中心に回
転するようにした横置ホツパーを設け、該横置ホ
ツパーの小径側端部を回転可能なガスシール及び
シール弁を介して前記シール金物に連結すると共
に、大径側端部を回転可能なガスシール及びシー
ル弁を介して原料供給側に連結したことを特徴と
する回転式炉頂装入装置に係るものである。 The present invention was made in an attempt to solve the problems of the above-mentioned conventional method.A gas seal metal fitting is provided at the top of the blast furnace, and a gas seal metal fitting is provided on the side of the gas seal metal fitting.
It has a truncated cone shape, and is supported so that its bottom is lower on the small diameter side than on the large diameter side, and is rotated around its axis by a rotational drive device. A horizontal hopper is provided, the small diameter side end of the horizontal hopper is connected to the seal hardware via a rotatable gas seal and a seal valve, and the large diameter side end is connected to a rotatable gas seal and a seal valve. This relates to a rotary furnace top charging device characterized in that it is connected to the raw material supply side via a rotary furnace top charging device.
以下本発明の実施例を図面を参照しつつ説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.
第3図に示す如く、炉内1の上部に設けられた
分配シユート2上に、原料を落下装入するための
装入孔3が設けられており、且つ該装入孔3の上
部はガスシール金物4にて気密に包囲されてい
る。上記ガスシール金物4の側方位置には、截頭
円錐形状の横置ホツパー5が、その底部において
小径側端部が低くなつた状態で支持ローラ6,
6′により回転可能に設けられている。該横置ホ
ツパー5の小径側端部は、ガスシール7により回
転しても気密が保持される状態でガスシール金物
4に連結されており、且つ該ガスシール金物4の
内部に設けた原料受け止め具8により小径側端部
を開閉しまた内部シール弁9により気密に閉塞す
ることができるようになつている。上記横置ホツ
パー5の中間部外周にはリングギヤ10が固定さ
れていると共に、該リング10と噛合するピニオ
ンギヤ11及びそれを駆動するモータ12が設け
られて回転駆動装置が構成されており、上記モー
タ12の駆動により横置ホツパー5を支持ローラ
6,6′に支持させた状態でその軸心を中心に回
転させることができるようになつている。また上
記横置ホツパー5の大径側端部における軸心部に
は、ガスシール13を介して回転可能に原料供給
管14が連結されており、該原料供給管14は垂
直上方に曲げられ且つその上端部に外部シール弁
15を備えていると共に、該外部シール弁15の
上部には原料受け部16が設けられている。また
地上から原料を運搬する装入コンベヤ17の先端
下部に設けられた装入シユート18と前記原料受
け部16との間には、分配コンベヤ19が設けら
れている。上記分配コンベヤ19は、横置ホツパ
ーを複数個(図示の実施例では炉軸20を中心に
対称に2個5と5′が設けられている)備えてい
る場合には、前記原料受け部16と炉軸20との
間の2倍の長さを有し、その駆動方向を切り換え
ることにより横置ホツパー5,5′への原料の分
配を行うようになつている。従つて上記横置ホツ
パーが1個だけ備えられている場合の分配コンベ
ヤは上記の半分の長さでよく、また3個以上が炉
軸20を中心として備えられた場合には分配コン
ベヤを炉軸20を中心に旋回させるようにした分
配方式としてもよい。図中8′は原料受け止め
具、9′は内部シール弁、21は原料を示す。 As shown in FIG. 3, a charging hole 3 for dropping raw materials is provided on a distribution chute 2 provided in the upper part of the furnace interior 1, and the upper part of the charging hole 3 is provided with a gas It is hermetically surrounded by a metal seal 4. At a side position of the gas seal hardware 4, there is a horizontal hopper 5 in the shape of a truncated cone, with a support roller 6,
6'. The small-diameter end of the horizontal hopper 5 is connected to the gas seal metal fitting 4 in a state where it is kept airtight even when rotated by a gas seal 7, and is connected to a raw material receiver provided inside the gas seal metal fitting 4. The small-diameter end can be opened and closed by a tool 8 and can be closed airtight by an internal seal valve 9. A ring gear 10 is fixed to the outer periphery of the intermediate portion of the horizontal hopper 5, and a pinion gear 11 that meshes with the ring 10 and a motor 12 that drives the pinion gear 12 are provided to constitute a rotational drive device. 12, the horizontal hopper 5 can be rotated about its axis while being supported by the support rollers 6, 6'. Further, a raw material supply pipe 14 is rotatably connected to the axial center of the large-diameter end of the horizontal hopper 5 via a gas seal 13, and the raw material supply pipe 14 is bent vertically upward. An external seal valve 15 is provided at its upper end, and a raw material receiving portion 16 is provided above the external seal valve 15. Further, a distribution conveyor 19 is provided between the material receiving portion 16 and a charging chute 18 provided at the lower end of the charging conveyor 17 that transports the material from the ground. When the distribution conveyor 19 includes a plurality of horizontal hoppers (in the illustrated embodiment, two hoppers 5 and 5' are provided symmetrically about the furnace axis 20), the raw material receiving portion 16 and the furnace shaft 20, and by switching its driving direction, raw material can be distributed to the horizontal hoppers 5, 5'. Therefore, when only one horizontal hopper is provided, the length of the distribution conveyor can be half of the above-mentioned length, and when three or more horizontal hoppers are provided, the length of the distribution conveyor is set around the furnace shaft 20. A distribution method may be used in which the distribution system is rotated around 20. In the figure, 8' is a raw material receiver, 9' is an internal seal valve, and 21 is a raw material.
次に本発明の作用について説明する。 Next, the operation of the present invention will be explained.
第3図に示すように横置ホツパー5に原料21
を投入する場合について説明すると、まず原料受
け止め具8及び内部シール弁9を閉塞した後、原
料供給側の外部シール弁15を開いて横置ホツパ
ー5内圧力を排圧し、且つ横置ホツパー5をモー
タ12の駆動により適宜の速度で回転させた状態
において、装入コンベヤ17からの原料を分配コ
ンベヤ19及び原料供給管14を介して投入す
る。このようにして投入された原料21は、横置
ホツパー5の回転により混合されつつ水平方向に
移動して小径側端部方向から除々に堆積する。ま
たこの操作が行われているとき、横置ホツパー
5′の原料受け止め具8′及び内部シール弁9′が
開かれてその内部に既に投入されていた原料が、
装入孔3及び分配シユート2を介して炉内1に装
入されている。 As shown in Fig. 3, the raw material 21 is placed in the horizontal hopper 5.
To explain the case of charging the horizontal hopper 5, first close the raw material receiving device 8 and the internal seal valve 9, then open the external seal valve 15 on the raw material supply side to exhaust the internal pressure of the horizontal hopper 5, and then release the horizontal hopper 5. While the motor 12 is driven to rotate at an appropriate speed, the raw material from the charging conveyor 17 is introduced via the distribution conveyor 19 and the raw material supply pipe 14. The raw material 21 charged in this manner is mixed by the rotation of the horizontal hopper 5, moves horizontally, and is gradually deposited from the small diameter side end. Also, while this operation is being carried out, the raw material receiver 8' and the internal seal valve 9' of the horizontal hopper 5' are opened, and the raw material that has already been put into the container is opened.
It is charged into the furnace 1 through a charging hole 3 and a distribution chute 2.
次に横置ホツパー5内に投入された原料21を
炉内1に装入する場合について説明すると、外部
シール弁15を閉塞し、モータ12の駆動により
横置ホツパー5を回転させた状態において、原料
止め具8及び内部シール弁9を開作動する。この
とき横置ホツパー5′からの原料装入は既に終了
し、原料止め具8′と内部シール弁9′は閉じられ
て次の原料が投入されている。上記横置ホツパー
5からの原料は、該横置ホツパー5の回転により
偏析することなく均一に混合された状態で装入口
3及び分配シユート2を介して炉内1に分配装入
される。この際、上記横置ホツパー5の回転速度
を調整することにより、原料の装入をコントロー
ルすることができる。 Next, the case where the raw material 21 charged into the horizontal hopper 5 is charged into the furnace 1 will be described. With the external seal valve 15 closed and the horizontal hopper 5 rotated by the drive of the motor 12, The raw material stopper 8 and the internal seal valve 9 are opened. At this time, the charging of the raw material from the horizontal hopper 5' has already been completed, the raw material stopper 8' and the internal seal valve 9' are closed, and the next raw material is charged. The raw materials from the horizontal hopper 5 are uniformly mixed without segregation due to the rotation of the horizontal hopper 5, and are distributed into the furnace 1 through the charging port 3 and the distribution chute 2. At this time, the charging of the raw material can be controlled by adjusting the rotational speed of the horizontal hopper 5.
横置ホツパー5内の原料の装入が終了すると、
原料止め具8及び内部シール弁9の閉作動により
横置ホツパー5の小径側端部を閉塞した後、外部
シール弁15を開作動することにより横置ホツパ
ー5内圧力を排圧する。続いて前記操作を繰返
し、横置ホツパー5,5′を介して交互に原料装
入を行う。このようにすれば略連続的な原料装入
が可能であるが、複数個備えられた横置ホツパー
5,5′から同時に原料を装入することにより、
原料の流れ方向による炉内原料の片寄り現象をな
くすこともできる。上記したように、横置きして
回転させるようにした横置ホツパー5,5′によ
り原料を水平方向に強制的に移動させるようにし
たことにより、前記第1図の従来例における固定
ホツパー、小ベルホツパー、及び第2図の従来例
における原料ホツパーを省略して高炉の炉頂装入
装置の背を大幅に低くすることができる。 When the charging of raw materials into the horizontal hopper 5 is completed,
After the small-diameter end of the horizontal hopper 5 is closed by closing the raw material stopper 8 and the internal seal valve 9, the internal pressure of the horizontal hopper 5 is exhausted by opening the external seal valve 15. Subsequently, the above operation is repeated, and raw materials are alternately charged via the horizontal hoppers 5, 5'. In this way, it is possible to charge the raw material almost continuously, but by simultaneously charging the raw material from a plurality of horizontal hoppers 5, 5',
It is also possible to eliminate the phenomenon that the raw materials in the furnace are shifted due to the flow direction of the raw materials. As mentioned above, by forcibly moving the raw material in the horizontal direction using the horizontally placed hoppers 5 and 5', which are horizontally placed and rotated, the fixed hopper in the conventional example shown in FIG. By omitting the bell hopper and the raw material hopper in the conventional example shown in FIG. 2, the height of the top charging device of the blast furnace can be significantly reduced.
尚、本発明は上記実施例にのみ限定されるもの
ではなく、各シール構造及び原料の搬送手段は
種々の方式のものを採用し得ること、横置ホツパ
ーの設置数は種々変更し得ること、横置ホツパー
からの装入原料を調整する装置を併せて備えるよ
うにしてもよいこと、等は勿論である。 It should be noted that the present invention is not limited to the above-mentioned embodiments, and that various types of seal structures and raw material conveying means can be adopted, and that the number of horizontal hoppers installed can be varied. Of course, a device for adjusting the raw material charged from the horizontal hopper may also be provided.
上述した本発明の回転式炉頂装入装置によれ
ば、
(i) 原料装入のためのホツパーを、回転により原
料を水平方向に強制的に運搬するようにした横
置ホツパーとしたことにより、機高を著しく低
くすることができ、従つて原料運搬設備、炉頂
櫓、上昇管、下降管等の設備費を大幅に削減す
ることができる。 According to the above-mentioned rotary furnace top charging device of the present invention, (i) the hopper for charging the raw material is a horizontal hopper that forcibly transports the raw material in the horizontal direction by rotation; The height of the machine can be significantly lowered, and the cost of equipment such as raw material transport equipment, furnace top turret, riser pipes, downcomer pipes, etc. can be significantly reduced.
(ii) 原料の落下による粉化が減少し、炉内原料粒
子間のガス流れが良好となつて、高炉の操業性
が向上する。(ii) Powdering caused by falling raw materials is reduced, gas flow between raw material particles in the furnace is improved, and the operability of the blast furnace is improved.
(iii) 原料衝突時の磨耗による炉頂装置の損傷が少
ない。(iii) There is less damage to the furnace top equipment due to wear during material collision.
(iv) 横置ホツパーの回転により原料の偏析をなく
し常に均一に混合された状態で原料を装入する
ことができる。(iv) By rotating the horizontal hopper, segregation of raw materials can be eliminated and raw materials can always be charged in a uniformly mixed state.
(v) 横置ホツパーの回転速度を制御することによ
り原料の装入をコントロールすることもでき
る。(v) The charging of raw materials can also be controlled by controlling the rotational speed of the horizontal hopper.
等、種々の優れた効果を発揮する。etc., exhibits various excellent effects.
第1図及び第2図は従来の代表的な炉頂装入装
置を示すもので第1図はバルブシール形、第2図
はベルなし式を示す図、第3図は本発明の一実施
例を示す説明図である。
1は炉内、3は装入孔、5,5′は横置ホツパ
ー、6,6′は支持ローラ、7,13はガスシー
ル、8,8′は原料受け止め具、9,9′は内部シ
ール弁、10はリングギヤ、11はピニオンギ
ヤ、12はモータ、15は外部シール弁、17は
装入コンベヤ、19は分配コンベヤを示す。
Figures 1 and 2 show typical conventional furnace top charging equipment; Figure 1 is a valve seal type, Figure 2 is a bellless type, and Figure 3 is an embodiment of the present invention. It is an explanatory diagram showing an example. 1 is inside the furnace, 3 is charging hole, 5, 5' is horizontal hopper, 6, 6' is support roller, 7, 13 is gas seal, 8, 8' is raw material receiver, 9, 9' is inside 10 is a ring gear, 11 is a pinion gear, 12 is a motor, 15 is an external seal valve, 17 is a charging conveyor, and 19 is a distribution conveyor.
Claims (1)
シール金物の側部に、截頭円錐形状を有し、且つ
その底部が大径側に対して小径側の方が低くなる
ように支持してなり、然も回転駆動装置によりそ
の軸心を中心に回転するようにした横置ホツパー
を設け、該横置ホツパーの小径側端部を回転可能
なガスシール及びシール弁を介して前記シール金
物に連結すると共に、大径側端部を回転可能なガ
スシール及びシール弁を介して原料供給側に連結
したことを特徴とする回転式炉頂装入装置。1. A gas seal metal fitting is provided at the top of the blast furnace, and supported on the side of the gas seal metal fitting so that it has a truncated conical shape and its bottom is lower on the small diameter side than on the large diameter side. However, a horizontal hopper is provided which is rotated around its axis by a rotary drive device, and the small-diameter end of the horizontal hopper is connected to the seal metal fitting through a rotatable gas seal and a seal valve. A rotary furnace top charging device characterized in that the large diameter side end is connected to the raw material supply side via a rotatable gas seal and seal valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6409878A JPS54155104A (en) | 1978-05-27 | 1978-05-27 | Rotary type top charging device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6409878A JPS54155104A (en) | 1978-05-27 | 1978-05-27 | Rotary type top charging device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54155104A JPS54155104A (en) | 1979-12-06 |
JPS6124447B2 true JPS6124447B2 (en) | 1986-06-11 |
Family
ID=13248252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6409878A Granted JPS54155104A (en) | 1978-05-27 | 1978-05-27 | Rotary type top charging device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54155104A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102417943A (en) * | 2010-04-16 | 2012-04-18 | 北京首钢机电有限公司 | Bellless feeding device |
CN114774604B (en) * | 2022-05-24 | 2023-09-22 | 宝武集团鄂城钢铁有限公司 | Furnace top equipment connection transition sealing device and blast furnace top charging equipment |
-
1978
- 1978-05-27 JP JP6409878A patent/JPS54155104A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS54155104A (en) | 1979-12-06 |
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