JPH0515805A - Grinding device - Google Patents

Grinding device

Info

Publication number
JPH0515805A
JPH0515805A JP26331191A JP26331191A JPH0515805A JP H0515805 A JPH0515805 A JP H0515805A JP 26331191 A JP26331191 A JP 26331191A JP 26331191 A JP26331191 A JP 26331191A JP H0515805 A JPH0515805 A JP H0515805A
Authority
JP
Japan
Prior art keywords
raw
classification
crushing
finishing mill
crusher
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.)
Granted
Application number
JP26331191A
Other languages
Japanese (ja)
Other versions
JP2755338B2 (en
Inventor
Kunio Takeya
国男 武谷
Original Assignee
Ube Ind Ltd
宇部興産株式会社
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 Ube Ind Ltd, 宇部興産株式会社 filed Critical Ube Ind Ltd
Priority to JP3263311A priority Critical patent/JP2755338B2/en
Publication of JPH0515805A publication Critical patent/JPH0515805A/en
Application granted granted Critical
Publication of JP2755338B2 publication Critical patent/JP2755338B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To provide a grinding device using a vertical grinder for preliminary grinding and a finishing mill for finish grinding and equipped with an inexpensive classifier where particle size of products ground by the preliminary grinding is easily classified during driving by remote control and the frequency of replacement of abraded parts is less. CONSTITUTION:A vertical grinder 1, a raw material supplying device 70 supplying raw material to the vertical grinder 1, an upflow type classifier 110, and a finishing mill 100 are provided. Fine particles after classification by the upflow type classifier 100 are introduced to the finishing mill 100 and coarse grains after the classification are returned to the vertical grinder 1 through a transfer path.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明の粉砕設備は,ボールミル
などの仕上ミルの予備粉砕機として竪型粉砕機を使用す
るものであって,主としてセメントクリンカ,高炉スラ
グなど特に硬くて粉砕し難く,かつ,摩耗性の強い原料
を微粉砕する粉砕設備に関する。
BACKGROUND OF THE INVENTION The crushing equipment of the present invention uses a vertical crusher as a preliminary crusher for a finishing mill such as a ball mill, and mainly cement clinker, blast furnace slag, etc. are particularly hard and difficult to crush. Also, the present invention relates to a crushing facility for finely crushing a raw material having a strong abrasion property.

【0002】[0002]

【従来の技術】石灰石や高炉スラグ,セメント原料など
の化学品を細かく粉砕し粉体とする粉砕機の一種とし
て,図3に示すように,回転テーブルと粉砕ローラとを
備えた竪型粉砕機1が広く用いられている。この種の粉
砕機は,円筒状ケーシング15の下部においてモータ2
Aにより減速機2で駆動されて低速回転する円盤状の回
転テーブル3Aと,その上面外周部を円周方向へ等分す
る箇所に油圧などで圧接されて従動回転する複数個の粉
砕ローラ4とを備えている。
2. Description of the Related Art As a kind of crusher for finely crushing chemicals such as limestone, blast furnace slag, and cement raw material into powder, as shown in FIG. 3, a vertical crusher equipped with a rotary table and crushing rollers. 1 is widely used. This type of crusher has a motor 2 at the bottom of the cylindrical casing 15.
A disk-shaped rotary table 3A driven by a speed reducer 2 by A to rotate at a low speed, and a plurality of crushing rollers 4 that are driven to rotate by being hydraulically pressed against a portion equally dividing the outer peripheral portion of the upper surface thereof in the circumferential direction. Is equipped with.

【0003】粉砕ローラ4はケーシング15に軸6によ
って揺動自在に軸支されたアーム5とアーム7を介して
油圧シリンダ9のピストンロッド10に連結されてお
り,油圧シリンダ9を作動させることにより,粉砕ロー
ラ4を回転テーブル3A上に押圧して原料への粉砕圧力
を与えている。3Bは回転テーブル3Aの外周縁に設け
られ原料層圧を調整するダムリング,14は回転テーブ
ル3A周囲のガス吹上用環状空間通路,14Aはガス供
給路,13は羽根13Aにより粉砕された原料を分級す
る回転セパレータ,16はガスと共に製品を取出す排出
口,17は原料投入シュートである。
The crushing roller 4 is connected to a piston rod 10 of a hydraulic cylinder 9 via an arm 5 and an arm 7 which are pivotally supported by a shaft 15 by a shaft 6, and by operating the hydraulic cylinder 9, The crushing roller 4 is pressed against the rotary table 3A to apply crushing pressure to the raw material. 3B is a dam ring provided on the outer peripheral edge of the rotary table 3A for adjusting the raw material layer pressure, 14 is a gas blowing annular space passage around the rotary table 3A, 14A is a gas supply passage, and 13 is raw material crushed by the blades 13A. A rotary separator for classification, 16 is an outlet for taking out a product together with gas, and 17 is a raw material charging chute.

【0004】このような竪型粉砕機において,回転テー
ブルの中央部へ原料投入シュート17で供給された原料
は,回転テーブル3Aの回転によりテーブル半径方向の
遠心力を受けて回転テーブル3A上を滑るときに回転テ
ーブル3Aにより回転方向の力を受け,回転テーブル3
Aとの間で滑って回転テーブル3Aの回転数よりいくら
か遅い回転を行なう。以上2つの力,すなわち,半径方
向と回転方向の力とが合成され,原料は回転テーブル3
A上を渦巻状の軌跡を描いて回転テーブル3Aの外周部
へ移動する。この外周部には,ローラが圧接されて回転
しているので,渦巻線を描いた原料は粉砕ローラ4と回
転テーブル3Aとの間へローラ軸方向とある角度をなす
方向から進入して噛込まれて粉砕される。
In such a vertical crusher, the raw material supplied to the central portion of the rotary table by the raw material charging chute 17 receives the centrifugal force in the radial direction of the rotary table 3A and slides on the rotary table 3A. At times, the rotary table 3A receives a force in the rotation direction, and the rotary table 3A
It slides with A and performs a rotation somewhat slower than the rotation speed of the rotary table 3A. The above two forces, that is, the radial direction force and the rotational direction force are combined, and the raw material is the rotary table 3.
A spiral locus is drawn on A to move to the outer peripheral portion of the rotary table 3A. Since the roller is pressed against the outer periphery and is rotating, the raw material in which the spiral is drawn enters the crushing roller 4 and the rotary table 3A from a direction forming an angle with the roller axial direction and is bitten. It is crushed and crushed.

【0005】一方,ケーシング15の基部にはダクトに
よって空気,あるいは熱風などのガスが導かれており,
このガスが回転テーブル3Aの外周面とケーシングの内
周面との間の環状空間部14から吹き上がることによ
り,粉砕された微粉体はガスに同伴されてケーシング1
5内を上昇し,上部に位置するセパレータ13の羽根1
3Aにより分級作用を受け,所定粒度の製品はガスと共
に排出口16から排出され次の工程へ送られる。
On the other hand, at the base of the casing 15, gas such as air or hot air is introduced by a duct,
This gas blows up from the annular space portion 14 between the outer peripheral surface of the rotary table 3A and the inner peripheral surface of the casing, so that the pulverized fine powder is entrained in the gas and the casing 1
5, the blade 1 of the separator 13 that is located in the upper part
The product having a predetermined particle size is subjected to the classification action by 3A and is discharged together with the gas from the discharge port 16 and sent to the next step.

【0006】近年粉砕原料の製品粒度への要求は年々高
まり,微粉砕あるいは超微粉砕と称されるように,益々
製品粒度の微細化が望まれるようになった。そこで単一
の粉砕機でその要求に応じることは困難になり,このた
め,たとえばボールミル等の仕上ミルに原料を投入する
前に予備粉砕機として竪型粉砕機を使用し,竪型粉砕機
の粉砕産物を振動篩でふるい分けして微粉のみを仕上ミ
ルへ供給する方法が採用されるようになった。図4はこ
の場合のフローシートを示し,原料ホッパ60の原料は
コンスタントフィード・ウェア70を経て,竪型粉砕機
1で粉砕され,産物はバケットエレベータ80を介して
振動篩90に導かれてスクリーニングされ,微粉のみ仕
上ミル(ボールミル)100で粉砕され,オーバサイズ
の産物は再び竪型粉砕機1で予備粉砕されるようになっ
ている。
In recent years, the demand for the product particle size of pulverized raw materials has been increasing year by year, and it has become more and more desired to make the product particle size finer, which is called fine pulverization or ultrafine pulverization. Therefore, it becomes difficult to meet the demand with a single crusher. Therefore, for example, before the raw material is put into a finishing mill such as a ball mill, a vertical crusher is used as a preliminary crusher. A method has been adopted in which pulverized products are sieved with a vibrating screen and only fine powder is supplied to a finishing mill. FIG. 4 shows a flow sheet in this case. The raw material of the raw material hopper 60 is crushed by the vertical crusher 1 through the constant feed ware 70, and the product is guided to the vibrating screen 90 through the bucket elevator 80 and screened. Only the fine powder is crushed by the finishing mill (ball mill) 100, and the oversized product is again preliminarily crushed by the vertical crusher 1.

【0007】[0007]

【発明が解決しようとする課題】上に述べた予備粉砕お
よび本粉砕による2段粉砕では,予備粉砕の産物を振動
篩でふるい分けしており,篩のメインテナンスが問題と
なる。すなわち,たとえば,スラグを含有するセメント
クリンカの微粉砕を行なう場合など摩耗性の特に激しい
原料では,一般的に言って2〜3ケ月毎に振動篩の点検
と部品交換が必要となり,この取替え作業には数時間の
運転停止を余儀なくされ,運転休止による生産性の低下
が避けられなかった。また,原料の種類の変更や供給す
る原料の性状の変化(被粉砕性,含有水分)に応じて振
動篩のふるい分け分級点を気軽にしかも簡単に変更する
には振動篩では困難であった。
In the above-described two-stage crushing by the preliminary crushing and the main crushing, the product of the preliminary crushing is sieved by the vibrating sieve, and the maintenance of the sieve becomes a problem. That is, for example, in the case of a raw material that is particularly abrasive, such as when crushing cement clinker containing slag, it is generally necessary to inspect and replace the vibrating screen every 2 to 3 months. However, it was inevitable to stop the operation for several hours, and the decrease in productivity due to the operation stop was unavoidable. In addition, it was difficult for the vibrating sieve to easily and easily change the sieving / classifying points of the vibrating sieve according to changes in the types of raw materials and changes in the properties of the raw materials to be supplied (grindability, water content).

【0008】[0008]

【課題を解決するための手段】上に述べた課題を解決す
るため,本発明の粉砕設備においては,竪型粉砕機を予
備粉砕機として使用する粉砕設備であって,該竪型粉砕
機へ原料を供給する原料供給設備と竪型粉砕機と該竪型
粉砕機の粉砕産物の分級装置と分級後の微粒を粉砕する
仕上ミルと輸送装置とを備え,該分級装置は垂直塔状の
筒体へ下方より上昇流の空気流れを形成して上方より原
料を自由落下して分級する上昇流型分級装置であり,か
つ,該分級装置の分級後の粗粒を該竪型粉砕機へ戻して
再粉砕し,微粒を該仕上ミルへ導く輸送系路を有する粉
砕設備とした。
In order to solve the above-mentioned problems, the crushing equipment of the present invention is a crushing equipment using a vertical crusher as a preliminary crusher. It is equipped with a raw material supply facility for supplying raw materials, a vertical crusher, a classifying device for crushed products of the vertical crusher, a finishing mill for crushing fine particles after classification, and a transportation device, and the classifying device is a vertical tower cylinder An upward flow classifier that forms an upward flow of air from below into the body and free-falls the raw material from above, and returns coarse particles after classification by the classifier to the vertical crusher. Was re-pulverized, and the pulverization equipment was provided with a transportation system for guiding fine particles to the finishing mill.

【0009】[0009]

【作用】本発明の粉砕設備は,予備粉砕機としての竪型
粉砕機と仕上ミルとの間に上昇流型分級装置を配設し,
垂直塔状の筒体に上昇流を形成してその上昇速度を任意
に設定し,上部より分級に供する竪型粉砕機の粉砕産物
を自然落下させ,粒子径によって終末沈降速度が異なる
ことを利用して分級点より大きい粒径の粒子は下方へ落
下させ,分級点以下の粒子を上昇させて上方に設けた排
出口より排出させる。このようにして分級後の微粒を仕
上ミルへ導き仕上粉砕するとともに,分級後の粗粒は竪
型粉砕機へ戻して再粉砕させるようにしている。この上
昇流型分級装置の分級点の制御は,筒体へ導く風量,す
なわち,上昇速度によって調節できるから遠隔操作で運
転中に任意に変更可能であり簡便である。
In the crushing equipment of the present invention, an upflow classifier is provided between the vertical crusher as a preliminary crusher and the finishing mill.
By forming an ascending flow in a vertical tower-shaped cylinder and setting the ascending speed arbitrarily, the crushed product of a vertical crusher used for classification is allowed to fall from the top, and the terminal sedimentation speed varies depending on the particle size. Then, particles having a particle size larger than the classification point are dropped downward, and particles below the classification point are raised and discharged from the discharge port provided above. In this way, the fine particles after classification are introduced into a finishing mill for finish pulverization, and the coarse particles after classification are returned to the vertical pulverizer for re-pulverization. The control of the classification point of this up-flow type classifier can be adjusted by the amount of air introduced to the cylinder, that is, the ascending speed, and can be arbitrarily changed during operation by remote control, which is simple.

【0010】[0010]

【実施例】以下図面に基づいて本発明の実施例について
詳細に説明する。図1〜図2は本発明の粉砕設備の実施
例に係り,図1は粉砕設備のフローシート,図2は上昇
流型分級装置の縦断面図である。図において,60は原
料ホッパ,70はコンスタントフィード・ウェア,1は
竪型粉砕機,80はバケットエレベータ,110は上昇
流型分級装置,100は仕上ミル,120は集塵装置,
130は吸引ファンである。なお,竪型粉砕機1は従来
技術で説明したとおりのものであり,また,仕上ミル1
00はボールミルやロッドミルを使用する。集塵装置1
20にはバッグフィルタやサイクロン,電気集塵機が使
用される。
Embodiments of the present invention will now be described in detail with reference to the drawings. 1 and 2 relate to an embodiment of the crushing equipment of the present invention, FIG. 1 is a flow sheet of the crushing equipment, and FIG. 2 is a vertical cross-sectional view of an upflow classifier. In the figure, 60 is a raw material hopper, 70 is a constant feed wear, 1 is a vertical crusher, 80 is a bucket elevator, 110 is an upflow classifier, 100 is a finishing mill, 120 is a dust collector,
Reference numeral 130 is a suction fan. The vertical crusher 1 is the same as that described in the related art, and the finishing mill 1
00 uses a ball mill or a rod mill. Dust collector 1
A bag filter, a cyclone, and an electric dust collector are used for 20.

【0011】図2に示すように,上昇流型分級装置11
0は,垂直筒状の筒体から形成される2本の隣接する筒
体(1次分級室)110a,筒体(2次分級室)11b
が上部に連通しており,各々の筒体110a,110b
にはそれぞれ下方より空気の取入口が設けられる。そし
て筒体110bの上部1端には含塵ガスの排出口が設け
られ,また筒体110a,110bの下方中央には粉粒
体の排出口が設けられている。そして,1次分級室であ
る筒体110aには2次分級室である筒体110bの上
昇流速vよりも大きな上昇流となる流速vとなるよ
うな風量を供給することで,1次分級室の筒体110a
には粗粒が落下し,2次分級室の筒体110bには中粒
が落下するとともに,終末沈降速度がv(m/se
c)以下の微粒は含塵ガス排出口より流体に随伴して集
塵装置120へ導かれる。110c,110dは筒体1
10aへの押込ファンおよび流量調整弁であり,同様に
110e,110fは筒体110bへの押込ファンおよ
び流量調整弁である。
As shown in FIG. 2, an upflow type classifying device 11
Reference numeral 0 denotes two adjacent tubular bodies (primary classification chambers) 110a and tubular bodies (secondary classification chambers) 11b which are formed of vertical tubular bodies.
Are communicated with the upper part, and each of the cylinders 110a, 110b
Each of them is provided with an air intake from below. A discharge port for dust-containing gas is provided at one end of the upper part of the cylinder 110b, and a discharge port for powder particles is provided at the lower center of the cylinders 110a and 110b. By supplying the air volume such that the flow velocity v 1 of the large rising flow than increasing the flow velocity v 2 of the cylindrical body 110b is a secondary classification chamber the tubular member 110a is a primary classification chamber, primary Cylindrical body 110a
Coarse particles fall into the secondary classification chamber, and medium particles fall into the cylindrical body 110b in the secondary classification chamber, and the final sedimentation velocity is v 2 (m / se).
c) The following fine particles are guided to the dust collector 120 from the dust-containing gas outlet along with the fluid. 110c and 110d are cylindrical bodies 1
A pushing fan and a flow rate adjusting valve to 10a, and 110e and 110f are a pushing fan and a flow rate adjusting valve to the cylinder 110b.

【0012】以上のように構成された本発明の粉砕設備
においては,原料ホッパ60の原料がコンスタントフィ
ード・ウェア70を経由して予備粉砕機である竪型粉砕
機1に供給されて粉砕され,微粉は集塵装置120へ導
かれるとともに,粗粒は竪型粉砕機1の環状空間通路1
4より排出され,バケットエレベータ80を経由して上
昇流型分級装置110へ導入される。そして前記したよ
うに分級後の粗粒は竪型粉砕機1へ戻され再粉砕され,
微粒は集塵装置120へ向かい,中粒(中間粒子)が仕
上ミル100へ導入されて仕上ミル100で粉砕され
る。なお,仕上ミル100の下流には図示しないサイク
ロンセパレータが設けられるとともに,サイクロンセパ
レータ分級後の微粉は最終製品となり分級点より粗い粗
粒は再び仕上ミル100へ戻すクローズド・サーキット
(閉回路)が形成されるよう構成される。図1では,集
塵装置120で捕集した粉末はそのまま最終製品とする
こともできるが,まだ所望の粒度に至っていない場合に
は仕上ミル100へ戻してもよい。
In the crushing equipment of the present invention constructed as described above, the raw material of the raw material hopper 60 is supplied to the vertical crusher 1 which is a preliminary crusher via the constant feed wear 70, and is crushed, The fine powder is guided to the dust collector 120, and the coarse particles are the annular space passage 1 of the vertical crusher 1.
4 and is introduced into the upflow classifier 110 via the bucket elevator 80. Then, as described above, the classified coarse particles are returned to the vertical crusher 1 and re-crushed,
The fine particles go to the dust collector 120, and the medium particles (intermediate particles) are introduced into the finishing mill 100 and pulverized by the finishing mill 100. In addition, a cyclone separator (not shown) is provided downstream of the finishing mill 100, and the fine powder after the cyclone separator classification is the final product, and a closed circuit (closed circuit) for returning coarse particles coarser than the classification point to the finishing mill 100 again is formed. Is configured to be. In FIG. 1, the powder collected by the dust collector 120 can be directly used as the final product, but may be returned to the finishing mill 100 if the desired particle size has not been reached yet.

【0013】本発明の粉砕設備に採用される上昇流型分
級装置では,分級原理が粒径毎に異なる終末沈降速度の
差によって粒子を分別するものであるから,分級点は非
常にシャープであるが,そのためには粒子の供給が過大
でなく,かつ,筒体内部に均等に分散し,筒体各部の粒
子濃度が自由な分別沈降の可能な程度に小さいことが必
要である。しかしながら,上昇流型分級装置110は最
終製品の分級点を規制するものではなく,予備粉砕後の
粉砕産物のうち粗粒のみを仕上ミル100へ供給しない
ためのものであるからそれほど神経質な管理は必要とし
ないので,本発明の粉砕設備の要求度に十分マッチした
安価な装置ということができる。また,原料の変更や供
給原料の粉砕性状の変化に応じて,仕上ミル100へ供
給する微粒の分級点を変更したいときには風量を変更す
るだけであるから簡便に遠隔操作で運転中に調節可能で
ある。
In the ascending-flow type classifier used in the crushing equipment of the present invention, the classification principle is that the particles are separated by the difference in the final settling velocity which differs depending on the particle size, so the classification point is very sharp. However, for that purpose, it is necessary that the supply of particles is not excessive, the particles are evenly distributed inside the cylinder, and the particle concentration in each part of the cylinder is small enough to allow free fractional sedimentation. However, the upflow type classifying device 110 does not regulate the classification point of the final product, but does not supply only the coarse particles of the crushed product after the preliminary crushing to the finishing mill 100. Since it is not necessary, it can be said to be an inexpensive device that sufficiently matches the requirements of the crushing equipment of the present invention. Also, when it is desired to change the classification point of the fine particles to be supplied to the finishing mill 100 according to the change of the raw material or the change of the pulverization property of the feed material, only the air volume is changed. is there.

【0014】[0014]

【発明の効果】以上説明したように,本発明の粉砕設備
においては,予備粉砕後の粉砕産物の選別に上昇流型分
級装置を採用したので,機器内の摩耗はほとんど無く,
振動篩を採用した場合のように2〜3ケ月毎の短期間の
点検や部品交換およびそれに伴なる生産性阻害要因が排
除され,著しくメインテナンス性が向上するとともに運
転操作性が改善される。そのほか,設備費も安価であ
り,仕上ミルの第1室の粉砕媒体であるスチールボール
の小径化も可能となるから粉砕効率が向上するとともに
ランニングコストの低減も図ることができる。
As described above, in the crushing equipment of the present invention, since the upflow type classifying device is used for the selection of the crushed products after the preliminary crushing, there is almost no wear in the equipment,
As in the case of adopting a vibrating screen, short-term inspections every 2-3 months, replacement of parts, and accompanying factors that impede productivity are eliminated, and maintainability is significantly improved and driving operability is improved. In addition, the equipment cost is low, and the diameter of the steel balls, which are the grinding medium in the first chamber of the finishing mill, can be reduced, so that the grinding efficiency is improved and the running cost can be reduced.

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

【図1】本発明の粉砕設備の実施例を示すフローシート
である。
FIG. 1 is a flow sheet showing an example of a crushing facility of the present invention.

【図2】本発明の粉砕設備に採用される上昇流型分級装
置の実施例を示す縦断面図である。
FIG. 2 is a vertical cross-sectional view showing an embodiment of an ascending-flow type classification device used in the crushing equipment of the present invention.

【図3】従来の竪型粉砕機の全体縦断面図である。FIG. 3 is an overall vertical cross-sectional view of a conventional vertical crusher.

【図4】従来の粉砕設備のフローシートである。FIG. 4 is a flow sheet of a conventional crushing facility.

【符号の説明】[Explanation of symbols]

1 竪型粉砕機 60 原料ホッパ 70 コンスタントフィード・ウェア 80 バケットエレベータ 90 振動篩 100 仕上ミル 110 上昇流型分級装置 110a 筒体 110b 筒体 110c 押込ファン 110d 流量調整弁 110e 押込ファン 110f 流量調整弁 120 集塵装置 130 吸引ファン 1 Vertical crusher 60 Raw material hopper 70 Constant feed wear 80 Bucket elevator 90 Vibrating sieve 100 Finishing mill 110 Upflow type classifier 110a Cylinder 110b Cylinder 110c Pushing fan 110d Flow control valve 110e Pushing fan 110f Flow control valve 120 Collection Dust device 130 Suction fan

Claims (1)

【特許請求の範囲】 【請求頂1】 竪型粉砕機を予備粉砕機として使用する
粉砕設備であって,該竪型粉砕機へ原料を供給する原料
供給設備と竪型粉砕機と該竪型粉砕機の粉砕産物の分級
装置と分級後の微粒を粉砕する仕上ミルと輸送装置とを
備え,該分級装置は垂直塔状の筒体へ下方より上昇流の
空気流れを形成して上方より原料を自由落下して分級す
る上昇流型分級装置であり,かつ,該分級装置の分級後
の粗粒を該竪型粉砕機へ戻して再粉砕し,微粒を該仕上
ミルへ導く輸送系路を有する粉砕設備。
What is claimed is: 1. A crushing facility using a vertical crusher as a preliminary crusher, comprising a raw material supply facility for supplying raw materials to the vertical crusher, a vertical crusher and the vertical crusher. The crusher is equipped with a classifying device for crushed products, a finishing mill for crushing fine particles after classification, and a transporting device, and the classifying device forms an upward flow of air from a lower part to a vertical tower-shaped cylinder, and a raw material from a higher part. Is an up-flow type classifier for free-falling and classifying, and the coarse particles after classification of the classifier are returned to the vertical crusher for re-crushing, and a transport system path for guiding fine particles to the finishing mill is provided. Grinding equipment to have.
JP3263311A 1991-07-09 1991-07-09 Crushing equipment Expired - Lifetime JP2755338B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3263311A JP2755338B2 (en) 1991-07-09 1991-07-09 Crushing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3263311A JP2755338B2 (en) 1991-07-09 1991-07-09 Crushing equipment

Publications (2)

Publication Number Publication Date
JPH0515805A true JPH0515805A (en) 1993-01-26
JP2755338B2 JP2755338B2 (en) 1998-05-20

Family

ID=17387719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3263311A Expired - Lifetime JP2755338B2 (en) 1991-07-09 1991-07-09 Crushing equipment

Country Status (1)

Country Link
JP (1) JP2755338B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006231125A (en) * 2005-02-22 2006-09-07 Chubu Electric Power Co Inc Manufacturing system of shell powder
CN100361749C (en) * 2003-05-28 2008-01-16 宇部兴产机械株式会社 Crushing method and apparatus
JP2008080271A (en) * 2006-09-28 2008-04-10 Nikko Kinzoku Kk Ball mill crushing method of copper smelting solvent
US7776133B2 (en) 2007-09-12 2010-08-17 Nippon Mining & Metals Co., Ltd. Method of operating non-ferrous smelting plant
CN102009041A (en) * 2010-10-13 2011-04-13 天津精华石化有限公司 Wind powder-selecting system for column mill
JP2012167851A (en) * 2011-02-14 2012-09-06 Tsukishima Kikai Co Ltd Horizontal rotary dryer for coal, coal boiler plant, and method for operating coal boiler plant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6133245A (en) * 1984-07-26 1986-02-17 Mitsubishi Heavy Ind Ltd Crusher
JPH02277561A (en) * 1989-04-19 1990-11-14 Mitsubishi Heavy Ind Ltd Grinder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6133245A (en) * 1984-07-26 1986-02-17 Mitsubishi Heavy Ind Ltd Crusher
JPH02277561A (en) * 1989-04-19 1990-11-14 Mitsubishi Heavy Ind Ltd Grinder

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100361749C (en) * 2003-05-28 2008-01-16 宇部兴产机械株式会社 Crushing method and apparatus
JP2006231125A (en) * 2005-02-22 2006-09-07 Chubu Electric Power Co Inc Manufacturing system of shell powder
JP2008080271A (en) * 2006-09-28 2008-04-10 Nikko Kinzoku Kk Ball mill crushing method of copper smelting solvent
JP4654171B2 (en) * 2006-09-28 2011-03-16 Jx日鉱日石金属株式会社 Ball milling method for copper smelting solvent
US7776133B2 (en) 2007-09-12 2010-08-17 Nippon Mining & Metals Co., Ltd. Method of operating non-ferrous smelting plant
CN102009041A (en) * 2010-10-13 2011-04-13 天津精华石化有限公司 Wind powder-selecting system for column mill
JP2012167851A (en) * 2011-02-14 2012-09-06 Tsukishima Kikai Co Ltd Horizontal rotary dryer for coal, coal boiler plant, and method for operating coal boiler plant

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Publication number Publication date
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