JP2951739B2 - Blast furnace raw material charging equipment - Google Patents
Blast furnace raw material charging equipmentInfo
- Publication number
- JP2951739B2 JP2951739B2 JP5317791A JP5317791A JP2951739B2 JP 2951739 B2 JP2951739 B2 JP 2951739B2 JP 5317791 A JP5317791 A JP 5317791A JP 5317791 A JP5317791 A JP 5317791A JP 2951739 B2 JP2951739 B2 JP 2951739B2
- Authority
- JP
- Japan
- Prior art keywords
- hopper
- raw material
- chute
- distribution
- blast furnace
- 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 31
- 239000000463 material Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、高炉の原料装入装
置、とくに並列させた３基以上の原料ホッパーを具える
マルチホッパータイプのベルレス式高炉炉頂部の原料装
入装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a raw material charging apparatus for a blast furnace, and more particularly to a multi-hopper type bellless blast furnace raw material charging apparatus having three or more raw material hoppers arranged in parallel.
【０００２】[0002]
【従来の技術】従来のベルレスマルチホッパー形式の高
炉炉頂部原料装入装置としては、例えば、特開昭４９−
１０３８０４号公報に開示されているような、図３に示
す如きものが一般的である。この既知の原料装入装置
は、炉体31の炉頂部内に旋回シュート32を設置し、その
上方に気密ホッパー33を介して略等間隔に並列配置した
３ケの原料ホッパー34a, 34b, 34c を配置し、さらにそ
の上部に旋回式分配シュート35とダンプシュート36を配
設し、そのダンプシュート36の直上に装入コンベヤ37の
端部が位置する構成となっているものである。そして、
この装置の場合、上記気密ホッパー33, 上記原料ホッパ
ー34a, 34b, 34c の頂部および上記ダンプシュート36下
端部に、それぞれガスシール弁もしくはダンパーを設置
している。2. Description of the Related Art A conventional bellless multi-hopper type blast furnace top raw material charging apparatus is disclosed in, for example,
As shown in FIG. 3, such as disclosed in Japanese Patent Application Laid-Open No. 103804 is generally used. This known raw material charging apparatus includes three raw material hoppers 34a, 34b, and 34c in which a swirling chute 32 is installed in a furnace top of a furnace body 31 and arranged above the airtight hopper 33 at substantially equal intervals in parallel. Are arranged, and a revolving distribution chute 35 and a dump chute 36 are further arranged thereon, and the end of the charging conveyor 37 is located immediately above the dump chute 36. And
In the case of this apparatus, a gas seal valve or a damper is installed at the top of the airtight hopper 33, the raw material hoppers 34a, 34b, 34c and the lower end of the dump chute 36, respectively.
【０００３】[0003]
【発明が解決しようとする課題】従来の前記原料装入装
置は、分配装入のための主駆動装置が気密内部にないこ
と、マルチホッパー構成になったことなどから、それ以
前の装置が抱えていた問題点の解消には役立つものであ
った。In the conventional raw material charging apparatus, the main driving apparatus for distributing and charging is not provided in an airtight interior, and a multi-hopper configuration is employed. It was useful for resolving the problems that had been encountered.
【０００４】しかしながら、この従来装置は、装入コン
ベヤー37から落下する原料を、原料ホッパー34a 〜34c
に投入する場合、ダンプシュート36を経て旋回式分配シ
ュート35を介して行うため、次のような問題があった。
すなわち、原料ホッパー切換えの度に前記分配シュー
トを旋回させなければならず、切換えに時間がかかる、
シュート旋回駆動部が原料落下時のダスト雰囲気に
曝されるためにトラブルが頻発する、分配シュートが
旋回式であることから可動部が大きく集塵が困難であ
る、故障し易い分配ホッパーやダンプシュートが故障
すると、全ての原料ホッパーの使用ができなくなり、装
置の稼働率が低い。However, in this conventional apparatus, the raw material falling from the charging conveyor 37 is supplied to the raw material hoppers 34a to 34c.
In this case, the following problem arises because the charging is performed via the swiveling distribution chute 35 via the dump chute 36.
That is, the distribution chute must be turned every time the raw material hopper is switched, and it takes time to switch.
Troubles occur frequently because the chute swivel drive unit is exposed to the dust atmosphere when the raw material falls. The swivel type distribution chute has large movable parts, making it difficult to collect dust. If the equipment fails, all the material hoppers cannot be used, and the operation rate of the apparatus is low.
【０００５】この発明の目的は、このような従来原料装
入装置が抱える問題点を解消できる新規な装置を開発し
提案するところにある。An object of the present invention is to develop and propose a new apparatus capable of solving the problems of the conventional raw material charging apparatus.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、上述の目
的について検討した結果、従来装置における旋回式分配
シュート３５の採用を止めると同時に、ダンプシュート
３６の機能を装入コンベヤー端直下の位置から外す一方
で、複数の切出し口を有する固定式分配ホッパーと、そ
の延在位置に分岐シュートを配設する新規な構成の採用
により、上記問題点の悉くが解消できることを突き止
め、次のような装置を完成させた。As a result of studying the above-mentioned object, the present inventors have stopped adopting the swivel-type distribution chute 35 in the conventional apparatus, and at the same time, have adopted a dump chute.
36 functions while to the outside from the position directly below charging conveyor end of a fixed dispensing hopper having a plurality of cut out openings, by adopting a novel structure to dispose the branch chute in its extended position, the problem They found that all of the above could be eliminated and completed the following device.
【０００７】すなわち、本発明は、ベルレスマルチホッ
パー形式の高炉炉頂部原料装入装置において、装入コン
ベヤー端直下に、複数の切出し口を有する逆角錐形の分
配ホッパーを配設し、この分配ホッパーの各原料ホッパ
ー頂部を臨む各下側面にはそれぞれ分岐シュートを延在
配設すると共に、その分岐シュート上端と連絡する前記
分配ホッパーの各下側面に設けた切出し口には開閉ゲー
トを設置したことを特徴とする高炉の原料装入装置であ
る。That is, according to the present invention, in a bellless multi-hopper type blast furnace top material charging apparatus, an inverted pyramid-shaped distribution hopper having a plurality of cutouts is disposed immediately below a charging conveyor end. A branch chute is provided on each lower side of the distribution hopper facing the top of each raw material hopper, and the branch chute is connected to the upper end of the branch chute.
An opening / closing gate is provided at a cutout provided on each lower surface of the distribution hopper .
【０００８】[0008]
【作用】従来の旋回式分配シュートを、本発明のように
固定式の分岐シュートに変えると、パス切り換え時間の
短縮、旋回駆動部を無くすこと、および集塵効率を上げ
ることができる。[Action] The conventional turning dispensing chute, the Ru transformed into branch chute fixed as in the present invention, shortening of path switching time, eliminating the swivel drive unit, and can increase the dust collection efficiency.
【０００９】また、装入コンベヤー端直下の最頂部位置
に、従来のダンプシュートに代えて分配ホッパーを配設
し、この分配ホッパーと原料ホッパーとの間には分岐シ
ュートを設け、その分岐シュートと連絡する前記分配ホ
ッパーの各下側面に設けた切出し口には開閉ゲートを設
ける。このような構成にすると、故障が少なくかつ集塵
効率が上がる上、このような組合わせだと、部分的な故
障が全体に及ばないので、装置稼働率を上げることがで
きる。Further, the topmost position directly below charging conveyor end, arranged a dispensing hopper in place of a conventional dump chute
A branch chute is provided between the distribution hopper and the raw material hopper, and the distribution hopper communicates with the branch chute.
An opening / closing gate is provided at a cutout provided on each lower surface of the upper . With such a configuration, the number of failures is small and the dust collection efficiency is increased, and in such a combination, a partial failure does not reach the whole, so that the operation rate of the apparatus can be increased.
【００１０】[0010]
【実施例】図１, 図２に基づいてこの発明の構成の詳細
を説明する。図中の符号１は炉体、２は旋回シュート、
３は集合ホッパー、４は原料ホッパーを示しており、こ
の原料ホッパー４の上・下端にはそれぞれシール弁
４V1,４V2が、ダンパー4dと共に設置されている。な
お、図１に示す本発明にかかる装置は、特定の原料ホッ
パー４の系統のみを示しており、並列状態に配設されて
いる他の複数の原料ホッパーの系統についても同様に構
成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the structure of the present invention will be described based on FIGS. In the drawing, reference numeral 1 denotes a furnace body, 2 denotes a turning chute,
Reference numeral 3 denotes a collecting hopper, and 4 denotes a raw material hopper. At upper and lower ends of the raw material hopper 4, seal valves 4V1 and 4V2 are installed together with a damper 4d. The apparatus according to the present invention shown in FIG. 1 shows only a specific raw material hopper 4 system, and the same applies to other plural raw material hopper systems arranged in parallel.
【００１１】さて、本発明にかかる装置の特徴は、前記
原料ホッパー４と装入コンベヤー７との間に、上から固
定式の、図２に示すような分配ホッパー６を配設し、こ
こで各装入系統に切り出される原料を前記原料ホッパー
４に導くための分岐シュート５が、この分配シュート６
と前記原料ホッパー４頂部との間に設けられる。The feature of the apparatus according to the present invention is that a fixed distribution hopper 6 as shown in FIG. 2 is disposed between the raw material hopper 4 and the charging conveyor 7, wherein the distribution hopper 6 is provided from above. A branch chute 5 for guiding the raw material cut out to each charging system to the raw material hopper 4 is provided with a distribution chute 6.
And the top of the raw material hopper 4.
【００１２】前記分配ホッパー６は、図２に示すとお
り、原料ホッパー４の数に見合う多角形の漏斗状（逆角
錐形）のものであり、各下側面はそのまま原料ホッパー
４の頂部に対応していて、ここに切出し口８がそれぞれ
設けられる。なお、この切出し口８の対向側面は、切出
し残が出ないように急斜面6a…としてあり、緩斜面に当
たる位置がそれぞれ各原料ホッパーに対応する切出し口
８…となる。As shown in FIG. 2, the distribution hopper 6 has a polygonal funnel shape (inverted pyramid shape) corresponding to the number of the raw material hoppers 4, and each lower surface corresponds to the top of the raw material hopper 4 as it is. And a cutout 8 is provided here. The side face of the cutout 8 is formed as a steep slope 6a so that no cutout remains, and the position corresponding to the gentle slope is the cutout 8 corresponding to each raw material hopper.
【００１３】この切出し口８は、前記分岐シュート５に
臨んで開口しており、ここには開閉ゲート９が設置さ
れ、原料の切出しは、この開閉ゲート９をシリンダーな
どを介して作動させることにより行う。このため、本発
明にあっては、駆動部が開閉ゲートだけと少なく、故障
のおそれが少ないので、設備稼動率向上に有効である。The cutout 8 is open to the branch chute 5, and an opening / closing gate 9 is provided here. The material is cut out by operating the opening / closing gate 9 via a cylinder or the like. Do. For this reason, in the present invention, the number of driving units is as small as only the open / close gate, and there is little possibility of failure, which is effective for improving the equipment operation rate.
【００１４】次に、本発明の装置は、前記分配ホッパー
６の下流側, すなわち切出し口８と原料ホッパー４頂部
との間を繋ぐ分岐シュート５が設けられるが、この分岐
シュート５は密閉構造であって、上・下端が、前記開閉
ゲート９間前記シール弁４V1でシールされているから、
装入過程で生ずる粉塵を外部に飛散させるようなことが
なくなる。しかも、前記分配ホッパー６との組合わせで
あれば、あまり高さを必要としないので、装入装置の全
高を小さくする上で有効であり、炉頂設備への負荷を軽
減する上で効果がある。Next, in the apparatus of the present invention, a branch chute 5 is provided downstream of the distribution hopper 6, that is, between the cutout 8 and the top of the raw material hopper 4. The branch chute 5 has a closed structure. Since the upper and lower ends are sealed by the seal valve 4 V1 between the open / close gates 9,
The dust generated in the charging process is not scattered outside. In addition, the combination with the distribution hopper 6 does not require much height, which is effective in reducing the total height of the charging device, and is effective in reducing the load on the furnace top equipment. is there.
【００１５】[0015]
【発明の効果】以上説明したような構成によってなる本
発明の原料装入装置によれば、パス切換えの時間を短縮
化できる他、駆動部が少ないことおよびそれが発塵雰囲
気に曝されることがないことなどのために故障がなく、
メンテナンスの負担が小さく、そして装置を小型化でき
る。さらにこの発明によれば、部分的な故障が全体に波
及することがないので、安定した高炉操業を約束でき
る。According to the raw material charging apparatus of the present invention having the above-described structure, the time for path switching can be shortened, the number of driving units is reduced, and the apparatus is exposed to a dust generating atmosphere. There is no failure because there is no
The maintenance burden is small, and the device can be downsized. Further, according to the present invention, since a partial failure does not affect the whole, stable blast furnace operation can be guaranteed.
【図１】図１は、本発明装入装置の一部を示す略線図で
ある。FIG. 1 is a schematic diagram showing a part of the charging device of the present invention.
【図２】図２は、分配ホッパーの水平断面図である。FIG. 2 is a horizontal sectional view of a distribution hopper.
【図３】図３は、従来装置の略線図である。FIG. 3 is a schematic diagram of a conventional device.
１ 炉体 ２ 旋回シュート ３ 集合ホッパー ４ 原料ホッパー ５ 分岐シュート ６ 分配ホッパー ７ 装入コンベヤー ８ 切出し口 ９ 開閉ゲート DESCRIPTION OF SYMBOLS 1 Furnace body 2 Revolving chute 3 Collecting hopper 4 Raw material hopper 5 Branch chute 6 Distribution hopper 7 Charging conveyor 8 Cut-out opening 9 Opening gate
Claims (1)
部原料装入装置において、装入コンベヤー端直下に、複
数の切出し口を有する逆角錐形の分配ホッパーを配設
し、この分配ホッパーの各原料ホッパー頂部を臨む各下
側面にはそれぞれ分岐シュートを延在配設すると共に、
その分岐シュート上端と連絡する前記分配ホッパーの各
下側面に設けた切出し口には開閉ゲートを設置したこ
と、を特徴とする高炉の原料装入装置。1. A blast furnace top material charging device of a bell-less multi-hopper type, directly under loading conveyor end, disposed opposite pyramidal distribution hopper with cut opening of the double <br/> number, the distribution Along with each branch chute extending and disposed on each lower surface facing the top of each raw material hopper of the hopper,
Each of the distribution hoppers that communicates with the top of its branch chute
An opening / closing gate is provided at a cutout provided on a lower side surface of the blast furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5317791A JP2951739B2 (en) | 1991-02-26 | 1991-02-26 | Blast furnace raw material charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5317791A JP2951739B2 (en) | 1991-02-26 | 1991-02-26 | Blast furnace raw material charging equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05132707A JPH05132707A (en) | 1993-05-28 |
| JP2951739B2 true JP2951739B2 (en) | 1999-09-20 |
Family
ID=12935587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5317791A Expired - Lifetime JP2951739B2 (en) | 1991-02-26 | 1991-02-26 | Blast furnace raw material charging equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2951739B2 (en) |
-
1991
- 1991-02-26 JP JP5317791A patent/JP2951739B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05132707A (en) | 1993-05-28 |
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