JP2533041B2 - Suspension preheater cyclone inner cylinder - Google Patents
Suspension preheater cyclone inner cylinderInfo
- Publication number
- JP2533041B2 JP2533041B2 JP4231624A JP23162492A JP2533041B2 JP 2533041 B2 JP2533041 B2 JP 2533041B2 JP 4231624 A JP4231624 A JP 4231624A JP 23162492 A JP23162492 A JP 23162492A JP 2533041 B2 JP2533041 B2 JP 2533041B2
- Authority
- JP
- Japan
- Prior art keywords
- components
- inner cylinder
- cyclone
- cyclone inner
- suspended
- 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 - Fee Related
Links
- 239000000725 suspension Substances 0.000 title claims description 15
- 239000000470 constituent Substances 0.000 claims description 29
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000002994 raw material Substances 0.000 description 11
- 239000004568 cement Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
- B04C5/13—Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Furnace Details (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、複数個の構成要素が円
周方向と高さ方向とに懸架により接続されて、所定径、
所定高さの、実質的に突起のない内周面が形成されるサ
スペンションプレヒータのサイクロン内筒に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of constituent elements connected by a suspension in a circumferential direction and a height direction and having a predetermined diameter,
The present invention relates to a cyclone inner cylinder of a suspension preheater in which an inner peripheral surface having a predetermined height and having substantially no protrusion is formed.
【０００２】[0002]
【従来の技術】セメント製造装置は、周知のようにロー
タリーキルンを備えている。そして石灰石、粘土、珪石
等からなる微粉砕されたセメントの混合原料は、このロ
ータリーキルンに投入され、そして例えば１４５０度Ｃ
程度の高温で焼成される。このときロータリーキルンか
ら排出される排ガスの温度は、１０００度Ｃ程度にも達
する。そこでロータリーキルンに供給する混合原料をこ
の排ガスで予熱することが行われている。この予熱には
一般にサイクロンが使用される。サイクロンは、周知の
ように円筒状の本体部と、この本体部からテーパ状に絞
られているテーパ部とから概略構成されている。そして
本体内部には、サイクロン内筒が設けられている。した
がって、混合原料と排ガスとをサイクロンに供給する
と、原料と排ガスの混合物はサイクロン本体内でサイク
ロン内筒の外側で旋回し、比重の大きい原料はテーパ部
の下方から排出され、排ガスはサイクロン内筒を通って
上方から排出される。この間に混合原料と排ガスは分離
されると共に、熱交換され原料は予熱される。2. Description of the Related Art As is well known, a cement manufacturing apparatus has a rotary kiln. Then, the mixed raw material of finely crushed cement made of limestone, clay, silica stone, etc. is put into this rotary kiln, and, for example, 1450 ° C.
It is baked at a high temperature of the order. At this time, the temperature of the exhaust gas discharged from the rotary kiln reaches about 1000 ° C. Therefore, the mixed raw material supplied to the rotary kiln is preheated with this exhaust gas. A cyclone is generally used for this preheating. As is well known, the cyclone is roughly composed of a cylindrical main body and a tapered portion that is tapered from the main body. A cyclone inner cylinder is provided inside the main body. Therefore, when the mixed raw material and the exhaust gas are supplied to the cyclone, the mixture of the raw material and the exhaust gas swirls inside the cyclone body outside the cyclone inner cylinder, and the raw material having a large specific gravity is discharged from below the tapered portion, and the exhaust gas emits the cyclone inner cylinder. Is discharged from above through. During this period, the mixed raw material and the exhaust gas are separated, and heat is exchanged to preheat the raw material.
【０００３】このように、サイクロン本体内部にサイク
ロン内筒が設けられているので、原料と排ガスの混合物
の分離が高められ、また熱交換率も向上するが、ロータ
リーキルンから排出される排ガスは、前述したように温
度が高く、また金属を腐食させる成分も含んでいる。そ
こで、サイクロン内筒は、不錆鋼板から円筒状に曲げ加
工され、そして端部が溶接により接合され筒状に一体化
されている。または耐熱合金から鋳造により一体形成さ
れている。ところで、前述したようにサイクロン内筒に
は高熱が不均一に加わり、熱応力が生じるが、上記のサ
イクロン内筒は、一体構造物であるので、熱応力により
歪、割れ等が発生する。また局部的に異常高温になる部
分があり、この部分から腐食も生じる。そうすると、交
換しなければならないが、セメント製造装置に使用され
るサイクロン内筒は、直径が２６００〜４０００ｍｍ、
高さが２０００ｍｍ程度もあり、一体物の交換は、卷揚
げ機等を使用した大がかりな作業となる。また局部的に
損傷を受けているにも拘らず、全体を交換しなければな
らず、不経済でもある。As described above, since the cyclone inner cylinder is provided inside the cyclone body, the separation of the mixture of the raw material and the exhaust gas is enhanced and the heat exchange rate is also improved, but the exhaust gas discharged from the rotary kiln is As mentioned above, it has a high temperature and also contains components that corrode metals. Therefore, the cyclone inner cylinder is bent from a rust-free steel plate into a cylindrical shape, and the ends are joined by welding to be integrated into a cylindrical shape. Alternatively, it is integrally formed by casting from a heat-resistant alloy. By the way, as described above, high heat is non-uniformly applied to the cyclone inner cylinder to generate thermal stress. However, since the cyclone inner cylinder is an integral structure, the thermal stress causes distortion, cracking and the like. In addition, there is a part where the temperature becomes abnormally high locally, and corrosion also occurs from this part. Then, although it must be replaced, the cyclone inner cylinder used in the cement manufacturing device has a diameter of 2600 to 4000 mm,
Since it has a height of about 2000 mm, the replacement of a single piece is a large-scale work using a hoisting machine or the like. It is also uneconomical because it must be replaced in its entirety despite being locally damaged.
【０００４】そこで、円周方向と高さ方向とに分割した
構成部材から形成される分割組立式サイクロン内筒が、
例えば実公平２ー７４３６号により提案されている。こ
の公報に記載されている構成部材は、上下端部に結合部
が形成され、また両側部には組立てたとき内側に位置す
る部分に突出したフランジが縦方向に設けられ、このフ
ランジにはボルト挿通用の孔が形成されている。したが
って、円周方向は、隣あった構成部材のフランジをボル
トで締めることにより、また上下方向は結合部を使用し
て吊り下げ接続して、筒状のサイクロン内筒を組み立て
ることができる。Therefore, a split assembly type cyclone inner cylinder formed of constituent members divided in the circumferential direction and the height direction is
For example, it is proposed by Jpn. The constituent members described in this publication have joint portions formed at the upper and lower ends thereof, and both side portions are provided with vertically projecting flanges at portions located inside when assembled, and the flanges are provided with bolts. A hole for insertion is formed. Therefore, the tubular cyclone inner cylinder can be assembled by tightening the flanges of the adjacent constituent members with bolts in the circumferential direction and by suspending and connecting using the coupling portion in the vertical direction.
【０００５】[0005]
【発明が解決しようとする課題】上記のサイクロン内筒
は、分割組立式であるので、一体化されている前述のサ
イクロン内筒に比較すると、熱応力による歪、割れ等に
対する問題はある程度改善されている。また分割式であ
るため、１個の構成部材は比較的軽く、サイクロン本体
内へ搬入し、そして組立てることも比較的容易と認めら
れる。さらには、サイクロン内筒の局部的な補修、取り
替えもできることは認められる。しかしながら、前述の
分割組立式のサイクロン内筒にも問題点は多い。例えば
構成部材は、円周方向はフランジをボルト締めすること
により、一体化されているので、円周方向の熱収縮は吸
収することができず、歪、割れ等の問題は避けられな
い。また多数のボルトが使用されているので、組立に
も、分解にも手間がかかる欠点がある。またフランジが
サイクロン内筒の内側に、しかも上下方向に設けられて
いるので、排ガスあるいは熱風の流れは、フランジに直
角に当たり流れに乱れが生じ、例えばフランジの下流側
に渦が生じ、サイクロン内筒の内面に局部的な異常加熱
を受ける箇所が生じる。この箇所は、内筒が耐熱合金か
ら構成されていても、材料劣化が生じ、割れが生じる。
そしてこの割れは全体に広がる恐れがある。したがっ
て、本発明は、分割組立式の長所を生かすと共に、上記
したような従来の問題点を解決したサイクロン内筒、す
なわち温度変化による歪を逃がすことができると共に、
組立が簡単であり、また排気ガスあるいは熱風の流れに
乱れが生じない、サスペンションプレヒータのサイクロ
ン内筒を提供することを目的としている。Since the cyclone inner cylinder described above is of the split and assembled type, the problems with respect to strain, cracking, etc. due to thermal stress are improved to some extent as compared with the aforementioned integrated cyclone inner cylinder. ing. Further, since it is a split type, one component is relatively light, and it is recognized that it is relatively easy to carry it into the cyclone body and assemble it. Furthermore, it is recognized that the cyclone inner cylinder can be locally repaired or replaced. However, there are many problems in the above-mentioned split assembly type cyclone inner cylinder. For example, since the constituent members are integrated by bolting the flanges in the circumferential direction, thermal contraction in the circumferential direction cannot be absorbed, and problems such as distortion and cracks cannot be avoided. Moreover, since many bolts are used, there is a drawback that it is troublesome to assemble and disassemble. Further, since the flange is provided inside the cyclone inner cylinder and in the vertical direction, the flow of exhaust gas or hot air hits the flange at a right angle and the flow is disturbed, for example, a vortex is generated on the downstream side of the flange and the cyclone inner cylinder is generated. There is a spot on the inner surface of the body that receives localized abnormal heating. Even if the inner cylinder is made of a heat-resistant alloy at this point, material deterioration occurs and cracks occur.
And this crack may spread all over. Therefore, the present invention, while taking advantage of the split assembly type, can eliminate the strain due to the temperature change, that is, the cyclone inner cylinder that solves the conventional problems described above,
It is an object of the present invention to provide a cyclone inner cylinder of a suspension preheater that is easy to assemble and that does not disturb the flow of exhaust gas or hot air.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記目的を達
成するために、複数個の構成要素が円周方向と高さ方向
とに懸架により接続されて、所定径、所定高さの、実質
的に突起のない内周面が形成されるサイクロン内筒であ
って、これらの複数個の構成要素の、組み立てられたと
き上方に位置する上方部には第１係合要素が、下方部に
は第２係合要素が設けられていると共に、両側部には隣
り合う構成要素と摺動自在に重なり合うシール部が形成
され、これらの複数個の構成要素は、前記第１、２係合
要素により、円周方向には前記シール部が摺動自在に重
なり合うように、そして高さ方向には下段の構成要素が
その上段の隣合う構成要素の両方に跨るように、懸架さ
れている。そして請求項２記載の発明は、請求項１記載
の第１係合要素はフックであり、第２係合要素は、透孔
から構成される。In order to achieve the above-mentioned object, the present invention has a plurality of constituent elements connected by suspension in a circumferential direction and a height direction, and has a predetermined diameter and a predetermined height. A cyclone inner cylinder having an inner peripheral surface substantially free of protrusions, wherein a first engaging element is provided in an upper portion of the plurality of components that is located above when assembled, and a lower portion is provided with a first engaging element. Is provided with a second engaging element, and a seal portion is formed on both sides so as to slidably overlap an adjacent constituent element, and the plurality of constituent elements are provided with the first and second engaging elements. The elements are suspended so that the seal portions are slidably overlapped in the circumferential direction, and that the lower-stage component straddles both the adjacent upper-stage components in the height direction. In the invention according to claim 2, the first engaging element according to claim 1 is a hook, and the second engaging element is formed of a through hole.
【０００７】[0007]
【作用】本発明は、以上のように構成されているので、
まずサイクロン本体の内部上方部に例えば取付金具を取
り付ける。この取付金具にも構成要素の第１係合要素例
えばフックが係合できる係合要素を形成しておく。次
に、構成要素のフックを取付金具の係合要素に係合し
て、構成要素を円周方向に順次懸架あるいは吊り下げ
る。構成要素を円周方向に懸架すると、隣り合う構成要
素のシール部が摺動自在に重なり合う。上記のようにし
て、上段の構成要素の吊り下げ組立を終り、次段の構成
要素を懸架する。すなわち次に吊り下げる構成要素のフ
ックを、既に組み立てた上段の構成要素の第２係合要素
例えば透孔に挿入して懸架する。このとき次段の構成要
素を、その上段の隣合う構成要素の両方に跨って懸架す
る。この操作を繰り返して、次段の構成要素を円周方向
に懸架する。懸架すると、隣り合う構成要素のシール部
は同様に摺動自在に重なり合う。以下、同様にして上下
方向に必要な段数だけ接続して、所定径、所定高さの、
実質的に突起のない内周面からなるサイクロン内筒の組
立てを終わる。組立てを終わると、従来のサイクロンと
同様にしてセメントの混合原料を予熱する。必要なとき
は、上記の手順と逆の手順でサイクロン内筒の分解・取
り外しをする。また上記のような手順で損傷・破損した
構成要素を交換する。The present invention is configured as described above.
First, for example, a mounting bracket is attached to the upper inside of the cyclone body. A first engaging element of the constituent element, for example, an engaging element with which a hook can be engaged, is also formed on this fitting. Next, the hooks of the constituent elements are engaged with the engaging elements of the mounting bracket to suspend or suspend the constituent elements sequentially in the circumferential direction. When the constituent elements are suspended in the circumferential direction, the seal portions of the adjacent constituent elements are slidably overlapped with each other. As described above, the suspension assembly of the upper stage components is completed, and the next stage components are suspended. That is, the hook of the component to be suspended next is inserted into and suspended from the second engaging element, for example, the through hole of the already assembled upper component. At this time, the component of the next stage is suspended over both the adjacent components of the upper stage. By repeating this operation, the components of the next stage are suspended in the circumferential direction. When suspended, the seals of adjacent components likewise slidably overlap. In the same manner, connect the required number of steps in the vertical direction in the same manner, and set the specified diameter and height,
The assembly of the cyclone inner cylinder consisting of the inner surface with substantially no protrusion is completed. After assembly, the cement mixture is preheated in the same way as a conventional cyclone. If necessary, disassemble and remove the cyclone inner cylinder by reversing the above procedure. Also, replace damaged or damaged components by the above procedure.
【０００８】[0008]
【実施例】本発明は色々な形で実施できる。例えばサイ
クロン内筒は、複数個の構成要素から構成されるが、こ
れらの構成要素は耐熱合金から鋳造することもできる。
このとき、第１、２係合要素も一体的に鋳造することが
望ましい。しかしながら、鋳造に代えて不錆鋼板から板
金加工することもできる。このとき係合要素であるフッ
クは別途溶接により取り付け、またフックが挿入される
透孔は、孔明け加工することになる。第１、２係合要素
は、フックと、該フックが挿入される透孔とで実施する
ことができる。フックと透孔は、構成要素の上下にそれ
ぞれ設けられるが、フックと透孔は、相対的なものであ
るので、透孔が構成要素の上部に設けられるときは、フ
ックが下部に設けられる。しかしながら、図にはフック
が上部に、そして透孔が下部にそれぞれ設けられた例の
みが示されている。サイクロン内筒の構成要素を高さ方
向に接続するとき、２段目以降はその上の段の構成要素
に接続されるが、最上段の構成要素を吊り下げるために
取付金具が適用される。取付金具も、サイクロン内筒の
構成要素と同様に分割された要素から構成することがで
きる。そうすると、組立、分解等が簡単になる。しかし
ながら、取付金具は、サイクロン本体の、組立が困難な
上部位置に設けられているので、交換する必要のない構
造にするのが望ましい。例えば最上段に適用されるサイ
クロン内筒の構成要素を上方に延ばし、この延ばした部
分で取付金具の内表面を保護するようにすることもでき
る。このときは、最上段に適用されるサイクロン内筒の
構成要素を、他の要素に比較して肉厚にすることもでき
る。構成要素を円周方向に接続して、所定径のサイクロ
ン内筒を形成するが、円周方向に接続する構成要素は、
偶数個で実施するのが望ましい。構成要素の両側部に形
成するシール部の形状が簡単になり、構成要素の吊り下
げ作業が容易になるからである。図面に示されている実
施例では、シール部は構成要素の両側部から円周方向に
張り出した張出縁から構成されているが、張出縁に代え
て構成要素の両側部をテーパ状に切り落としても実施で
きる。The present invention can be implemented in various forms. For example, the cyclone inner cylinder is composed of a plurality of components, but these components can also be cast from a heat-resistant alloy.
At this time, it is desirable that the first and second engagement elements are integrally cast. However, instead of casting, it is also possible to perform sheet metal working from a non-rust steel plate. At this time, the hook, which is the engaging element, is attached by welding separately, and the through hole into which the hook is inserted is drilled. The first and second engagement elements can be implemented with hooks and through holes into which the hooks are inserted. The hook and the through hole are provided above and below the component, respectively, but since the hook and the through hole are relative, when the through hole is provided at the upper part of the component, the hook is provided at the lower part. However, the figure only shows an example in which the hook is provided at the upper part and the through hole is provided at the lower part. When connecting the components of the cyclone inner cylinder in the height direction, the second and subsequent stages are connected to the components of the upper stage, but a mounting bracket is applied to suspend the components of the uppermost stage. The mounting bracket can also be composed of divided elements similar to the components of the cyclone inner cylinder. Then, assembling and disassembling becomes easy. However, since the mounting bracket is provided at the upper position of the cyclone body where assembly is difficult, it is desirable to have a structure that does not require replacement. For example, the components of the cyclone inner cylinder applied to the uppermost stage may be extended upward, and the extended portion may protect the inner surface of the fitting. At this time, the constituent elements of the cyclone inner cylinder applied to the uppermost stage can be made thicker than other elements. The components are connected in the circumferential direction to form a cyclone inner cylinder having a predetermined diameter, but the components connected in the circumferential direction are
It is desirable to carry out with an even number. This is because the shape of the seal portions formed on both sides of the component becomes simple and the work of suspending the component becomes easy. In the embodiment shown in the drawings, the seal part is composed of flared edges that project circumferentially from both sides of the component, but instead of the flared edge both sides of the component are tapered. It can also be cut off.
【０００９】以下、本発明の１実施例を説明する。図１
に示されているように、本実施例に係わるサイクロン１
も、外形は従来のサイクロンと同様に、略筒状を呈する
円筒部２と、この円筒部２から下方に向かって順次縮径
されているテーパ部３と、円筒部２の上方に接続されて
いる排出管４と、円筒部２の周壁に接線方向に開口して
いる供給管５とから概略構成されている。そしてサイク
ロン内筒１０は、円筒部２の内部において上方から吊り
下げられている。したがって、供給管５から排ガスとセ
メントの原料とを矢印方向に供給すると、これらの混合
物は円筒部２の内部で、かつサイクロン内筒１０の外側
空間で旋回する。この過程で、比重の大きい原料はテー
パ部３の内壁に沿って下降しアンダーフロウ管６から例
えばロータリキルンへと排出される。一方比重の小さい
排ガスは、サイクロン内筒１０から排出管４を経て例え
ば次の段のサイクロンに供給される。このようにして、
原料は予熱される。このようなサイクロンは複数段に設
けられている。An embodiment of the present invention will be described below. FIG.
Cyclone 1 according to the present embodiment, as shown in FIG.
Like the conventional cyclone, the external shape is a cylindrical portion 2 having a substantially tubular shape, a tapered portion 3 that is gradually reduced in diameter downward from the cylindrical portion 2, and a cylindrical portion 2 that is connected above the cylindrical portion 2. A discharge pipe 4 and a supply pipe 5 that is open tangentially to the peripheral wall of the cylindrical portion 2 are provided. The cyclone inner cylinder 10 is suspended from above inside the cylindrical portion 2. Therefore, when the exhaust gas and the cement raw material are supplied from the supply pipe 5 in the arrow direction, the mixture thereof swirls inside the cylindrical portion 2 and in the outer space of the cyclone inner cylinder 10. In this process, the raw material having a large specific gravity descends along the inner wall of the tapered portion 3 and is discharged from the underflow pipe 6 to, for example, a rotary kiln. On the other hand, the exhaust gas having a small specific gravity is supplied from the cyclone inner cylinder 10 through the discharge pipe 4 to, for example, the cyclone in the next stage. In this way,
The raw material is preheated. Such cyclones are provided in multiple stages.
【００１０】図２の（イ）は、サイクロン内筒１０の構
成要素を一部組立て、サイクロン内筒１０の内側から見
た正面図であり、図４は図２の（イ）において矢印Ａー
Ａ方向に見た断面図であるが、これらの図に示されてい
るように、サイクロン内筒１０の構成要素は、本実施例
では吊り下げられる位置に関係なく、２種類の第１、２
の構成要素１１ａ、１１ｂから構成されている。すなわ
ち第１、２の構成要素１１ａ、１１ｂは、両側部のシー
ル部Ｓの構造が相違するのみで、他の部分は同じ構造
で、同じ大きさになっている。第１、２の構成要素１１
ａ、１１ｂは、正面から見ると略方形をし、平面的に
は、図４に示されているように、円弧状になっている。
そしてこれらの構成要素１１ａ、１１ｂの上方部には、
図２に示されているように、外側に突出し、かつ下方を
向いたフック１２、１２が間隔Ｌ１をおいて２個設けら
れている。このフック１２、１２の間隔Ｌ１は、図２の
（イ）に示されているように、円周方向に吊り下げ組み
立てたとき、隣のフック１２との距離Ｌｔにも等しい。
第１、２の構成要素１１ａ、１１ｂの下方部分には、構
成要素１１ａ、１１ｂの厚みと略同じ寸法だけ半径外方
に出た段差１３が形成されている。すなわち、構成要素
１１ａ、１１ｂの下方部分には、拡径部１４が形成され
ている。そしてこの拡径部１４に斜め下向きの透孔１
５、１５が２個設けられている。これらの透孔１５、１
５の間隔Ｌ２も、フック１２、１２の間隔Ｌ１と同じで
あり、またこの間隔Ｌ２は、第１、２の構成要素１１
ａ、１１ｂを円周方向に吊り下げ組み立てたとき、隣の
透孔１５との間隔Ｌｈにも等しい。FIG. 2A is a front view of the components of the cyclone inner cylinder 10 partially assembled and seen from the inside of the cyclone inner cylinder 10. FIG. 4A is an arrow A-- in FIG. Although it is a cross-sectional view as seen in the direction A, as shown in these figures, the constituent elements of the cyclone inner cylinder 10 are two types of first and second irrespective of the position where they are suspended in this embodiment.
It is composed of the components 11a and 11b. That is, the first and second components 11a and 11b are different only in the structure of the seal portions S on both sides, and the other parts have the same structure and the same size. First and second components 11
Each of a and 11b has a substantially rectangular shape when viewed from the front, and has a circular arc shape in plan view as shown in FIG.
And above these components 11a, 11b,
As shown in FIG. 2, two hooks 12, 12 protruding outward and facing downward are provided at a distance L1. The distance L1 between the hooks 12 and 12 is also equal to the distance Lt between the hooks 12 adjacent to each other when the hooks 12 are assembled by being suspended in the circumferential direction, as shown in FIG.
At the lower part of the first and second components 11a and 11b, a step 13 is formed which is radially outwardly protruded by approximately the same dimension as the thickness of the components 11a and 11b. That is, the expanded diameter portion 14 is formed in the lower portion of the components 11a and 11b. Then, the enlarged diameter portion 14 is provided with a through-hole 1 which is directed obliquely downward.
Two 5 and 15 are provided. These through holes 15, 1
The spacing L2 of 5 is also the same as the spacing L1 of the hooks 12, 12, and this spacing L2 is the first and second components 11 as well.
When assembling a and 11b by suspending them in the circumferential direction, it is also equal to the distance Lh from the adjacent through hole 15.
【００１１】第１、２の構成要素１１ａ、１１ｂの両側
部は、シール部Ｓを構成している。すなわち図４におい
て両側に位置する第１の構成要素１１ａの両側部は、内
側から所定幅、所定深さ切り欠かれ、外側に円周方向に
張り出した張出縁１６、１６が形成され、また中央に位
置する第２の構成要素１１ｂの両側部は、外側が同様に
切り欠かれ、そして内側に円周方向に張り出した張出縁
１７、１７が形成されている。これらの張出縁１６、１
７の厚みは、構成要素１１ａ、１１ｂの厚みの約半分で
ある。したがって、第１、２の構成要素１１ａ、１１ｂ
を円周方向に交互に組立てた時は、張出縁１６、１７が
内外に互いに係合し、第１、２の構成要素１１ａ、１１
ｂの内外表面は略同一面となる。Both side portions of the first and second constituent elements 11a and 11b constitute a seal portion S. That is, both sides of the first constituent element 11a located on both sides in FIG. 4 are cut out from the inside by a predetermined width and a predetermined depth, and overhanging edges 16, 16 projecting outward in the circumferential direction are formed. Both sides of the second component 11b located in the center are similarly cut out on the outside, and are formed with overhanging edges 17, 17 projecting in the circumferential direction on the inside. These overhangs 16, 1
The thickness of 7 is about half the thickness of the components 11a, 11b. Therefore, the first and second components 11a and 11b
Are alternately assembled in the circumferential direction, the protruding edges 16 and 17 engage with each other inward and outward, and the first and second components 11a and 11
The inner and outer surfaces of b are substantially flush with each other.
【００１２】第１、２の構成要素１１ａ、１１ｂを吊り
下げる取付金具２０も、図２、３に示されているよう
に、本実施例では分割された複数個の吊り下げ要素２
１、２１、…から構成されている。吊り下げ要素２１、
２１、…は、サイクロン１の円筒部２に固定するための
フランジ２４、拡径された部分２３、補強用のリブ２５
等から一体的に構成されている。そして拡径された部分
２３に第１、２の構成要素１１ａ、１１ｂのフック１
２、１２が挿入される透孔２２、２２が明けられてい
る。The mounting bracket 20 for suspending the first and second components 11a and 11b is also a plurality of divided suspending elements 2 in this embodiment, as shown in FIGS.
It is composed of 1, 21, .... Suspension element 21,
21, ... A flange 24 for fixing to the cylindrical portion 2 of the cyclone 1, an enlarged diameter portion 23, and a reinforcing rib 25.
Etc. are integrally configured. And the hook 1 of the first and second components 11a and 11b is attached to the enlarged portion 23.
Through holes 22 and 22 into which 2 and 12 are inserted are opened.
【００１３】次に上記実施例の作用について説明する。
まず、吊り下げ要素２１、２１、…を円筒部２の上方に
取付ける。一部取り付けた状態は、図２、３に示されて
いる。サイクロン内筒１０は、前述もしたように直径が
２６００〜４０００ｍｍにも達するので、人が中に入っ
て次のようにして吊り下げ作業を行う。すなわち最初に
上段Ｕを、張出縁１６、１６が外側にある第１の構成要
素１１ａ、１１ａを、図４に示されているように１つお
きに、そのフック１２、１２を吊り下げ要素２１の透孔
２２、２２に挿入することにより吊り下げる。次に張出
縁１７、１７が内側にある第２の構成要素１１ｂ、１１
ｂを、既に吊り下げられている第１の構成要素１１ａ、
１１ａの間を埋めるようにして同様にして吊り下げる。
そうすると、フック間の間隔は、Ｌ１、Ｌｔになってい
るので、第１、２の構成要素１１ａ、１１ｂのシール部
Ｓの張出縁１６、１７は、図４に示されているように、
互いに重なり合い円周方向に摺動自在に係合する。第１
の構成要素１１ａの張出縁１６、１６は、外側に形成さ
れているが、最初に第１の構成要素１１ａを、第２の構
成要素１１ｂが吊り下げられる部分を明けて吊り下げる
ので、吊り下げ作業は容易である。第２の構成要素１１
ｂを吊り下げるときは、シール部Ｓの張出縁１６、１７
は、図４に示されているように、互いに重なり合うが、
第２の構成要素１１ｂの張出縁１７、１７は、内側に形
成されているので、張出縁１７、１７が吊り下げ作業に
支障を来すようなことはない。また、吊り下げ要素２
１、２１、…の透孔２２、２２は、拡径された部分２３
に形成され、また透孔２２、２２も、第１、２の構成要
素１１ａ、１１ｂのフック１２、１２も共に下方を向い
ているので、吊り下げ要素２１、、の拡径された部分２
３の面と、構成要素１１ａ、１１ｂの上方部の面は、構
成要素１１ａ、１１ｂの重みで互いに密接する方向に作
用し、吊り下げられた第１、２の構成要素１１ａ、１１
ｂは、略鉛直方向を向く。したがって、吊り下げ作業は
容易である。Next, the operation of the above embodiment will be described.
First, the suspension elements 21, 21, ... Are mounted above the cylindrical part 2. The partially attached state is shown in FIGS. Since the cyclone inner cylinder 10 has a diameter of 2600 to 4000 mm as described above, a person enters the cyclone inner cylinder 10 and suspends it as follows. That is, first of all the upper part U, the first components 11a, 11a with the flared edges 16, 16 on the outside, every other hook as shown in FIG. It is hung by inserting it into the through holes 22 of 22. Then the second component 11b, 11 with the overhanging edge 17, 17 inside
b the first component 11a already suspended,
Similarly, the space between 11a is filled so that the space is suspended.
Then, since the intervals between the hooks are L1 and Lt, the overhanging edges 16 and 17 of the seal portion S of the first and second components 11a and 11b are, as shown in FIG.
They overlap each other and engage with each other slidably in the circumferential direction. First
Although the overhanging edges 16 and 16 of the component 11a are formed on the outer side, first, the first component 11a is hung after the portion where the second component 11b is hung is suspended. The lowering work is easy. Second component 11
When suspending b, the protruding edges 16, 17 of the seal portion S
Overlap each other, as shown in FIG.
Since the projecting edges 17, 17 of the second component 11b are formed inside, the projecting edges 17, 17 do not hinder the hanging work. Also, the hanging element 2
The through holes 22, 22 of 1, 21, ...
Since the through holes 22 and 22 and the hooks 12 and 12 of the first and second components 11a and 11b are both facing downward, the diameter of the suspension element 21 is increased.
The surface of No. 3 and the surface of the upper part of the components 11a and 11b act in a direction in which they are in close contact with each other due to the weight of the components 11a and 11b, and the first and second suspended components 11a and 11b.
b is oriented in a substantially vertical direction. Therefore, the hanging operation is easy.
【００１４】次の中段Ｍも同様にして吊り下げ組み立て
る。このとき、第１、２の構成要素１１ａ、１１ｂのフ
ック１２、１２間の間隔Ｌ１と、隣あった構成要素１１
ａ１１ｂのフック１２、１２間の間隔Ｌｔは等しく、こ
の間隔Ｌ１はさらには第１、２の構成要素１１ａ、１１
ｂの透孔１５、１５間の間隔Ｌ２にも、隣あった構成要
素１１ａ、１１ｂの透孔１５、１５間の間隔Ｌｈにも、
共に等しいので、上段Ｕの第１、２の構成要素１１ａ、
１１ｂに跨って、中段Ｍの第１、２の構成要素１１ａ、
１１ｂを前述したようにして上段Ｕの第１、２の構成要
素１１ａ、１１ｂに吊り下げる。このように跨って懸架
すると、上段Ｕの第１、２の構成要素１１ａ、１１ｂの
シール部Ｓが中段Ｍの第１、２の構成要素１１ａ、１１
ｂの中心に来るようになる。その結果、上段Ｕの第１、
２の構成要素１１ａ、１１ｂの動きはある程度拘束され
ることになる。以下同様にして必要な段数を吊り下げて
組み立てる。このときも、構成要素１１ａ、１１ｂは略
鉛直方向を向くことは明らかである。The next middle stage M is similarly suspended and assembled. At this time, the interval L1 between the hooks 12 and 12 of the first and second components 11a and 11b and the adjacent component 11
The distance Lt between the hooks 12, 12 of a11b is equal, and this distance L1 is further the first and second components 11a, 11
In the distance L2 between the through holes 15 and 15 of b, and in the distance Lh between the through holes 15 and 15 of the adjacent components 11a and 11b,
Since both are the same, the first and second components 11a of the upper stage U,
The first and second components 11a of the middle stage M across 11b,
11b is suspended from the first and second components 11a and 11b of the upper stage U as described above. When suspended in this manner, the seal portion S of the first and second constituent elements 11a and 11b of the upper stage U has the first and second constituent elements 11a and 11 of the middle stage M.
come to the center of b. As a result, the first of the upper U,
The movement of the second component 11a, 11b will be restrained to some extent. In the same way, suspend the required number of steps and assemble. At this time as well, it is clear that the constituent elements 11a and 11b face the substantially vertical direction.
【００１５】最後に図２において鎖線で示されているよ
うに、隣あった第１、２の構成要素１１ａ、１１ｂの下
端部を、連結金具３０で接続して組立を終わる。なお、
連結金具３０には構成要素１１ａ、１１ｂのフック１
２、１２と同じ大きさ、同じ間隔で形成されているフッ
ク３１を有するので、このフック３１を利用して接続す
る。逆の手順で取り外しができることは明らかである。Finally, as shown by the chain line in FIG. 2, the lower ends of the first and second components 11a and 11b adjacent to each other are connected by the connecting fitting 30 to complete the assembly. In addition,
The connecting fitting 30 includes hooks 1 of the components 11a and 11b.
Since the hooks 31 are formed to have the same size and the same interval as those of 2 and 12, the hooks 31 are used for connection. Clearly, the reverse procedure can be used for removal.
【００１６】本実施例によると色々な効果が得られる。
例えば第１、２の構成要素１１ａ、１１ｂのシール部Ｓ
は、張出縁１６、１７で構成されているので、構成要素
を容易に吊り下げ組立てることができる。すなわちサイ
クロン内筒１０の内側に人が入って組み立てるときは、
最後に第２の構成要素１１ｂ、１１ｂを内側から吊り下
げ、外側に人がいて組み立てるときは、最後に第１の構
成要素１１ａ、１１ａを外側から吊り下げることによ
り、吊り下げ作業が容易になる。また組み立てた状態で
は、張出縁１６、１７が重なりあっているので、シール
効果も高い。また摺動自在に重なり合っているので、熱
による応力を逃がすことができる。取付金具２０の透孔
２２、２２および第１、２の構成要素１１ａ、１１ｂの
透孔１５、１５は、拡径された部分２３、１４に斜め下
方を向くようにそれぞれ形成され、そして構成要素１１
ａ、１１ｂのフック１２、１２も斜め下方を向いている
ので、構成要素１１ａ、１１ｂを吊り下げるとき構成要
素１１ａ、１１ｂは鉛直方向を向き、吊り下げ組立が容
易であると共に、拡径された部分２３、１４の近傍の面
と、フック１２、１２が設けられている近傍の面は密接
し、排ガスの漏れがないという効果もある。また拡径部
１４、２３に透孔１５、２２が形成されているので、構
成要素１１ａ、１１ｂを吊り下げ、サイクロン内筒１０
を形成すると、サイクロン内筒１０の内周面は略同一面
となり、ガスの流れに乱れが生じることもない。本実施
例によると、隣あった第１、２の構成要素１１ａ、１１
ｂの下端部は連結金具３０で接続されているので、稼動
中に構成要素１１ａ、１１ｂが半径方向に揺れ、シール
部Ｓが異常に開くこともないし、また交差することもな
い。According to this embodiment, various effects can be obtained.
For example, the seal portion S of the first and second components 11a and 11b
Is composed of the projecting edges 16 and 17, the components can be easily suspended and assembled. That is, when a person enters the inside of the cyclone inner cylinder 10 to assemble it,
Finally, when the second components 11b, 11b are suspended from the inside and a person is assembled on the outside to assemble, the suspension work is facilitated by suspending the first components 11a, 11a from the outside at the end. . Further, in the assembled state, the overhang edges 16 and 17 overlap each other, so that the sealing effect is high. Also, since they are slidably overlapped with each other, the stress due to heat can be released. The through holes 22 and 22 of the mounting member 20 and the through holes 15 and 15 of the first and second components 11a and 11b are respectively formed in the enlarged diameter portions 23 and 14 so as to face obliquely downward, and the components 11
Since the hooks 12 and 12 of a and 11b are also directed diagonally downward, when the components 11a and 11b are suspended, the components 11a and 11b are oriented in the vertical direction, and the suspension assembly is easy and the diameter is increased. The surface in the vicinity of the portions 23, 14 and the surface in the vicinity of the hooks 12, 12 are in close contact with each other, and there is also an effect that there is no leakage of exhaust gas. Further, since the through holes 15 and 22 are formed in the expanded diameter portions 14 and 23, the constituent elements 11a and 11b are suspended, and the cyclone inner cylinder 10 is suspended.
When the above is formed, the inner peripheral surface of the cyclone inner cylinder 10 becomes substantially the same surface, and the gas flow is not disturbed. According to this embodiment, the first and second components 11a and 11 which are adjacent to each other
Since the lower end portion of b is connected by the connecting fitting 30, the constituent elements 11a and 11b sway in the radial direction during operation, and the seal portion S does not open abnormally or cross.
【００１７】[0017]
【発明の効果】以上のように、本発明によるとサイクロ
ン内筒は、複数個の構成要素が円周方向と高さ方向とに
懸架により接続されて、所定径、所定高さに形成されて
いるので、熱による応力がいずれの方向に生じても吸収
でき、構成要素に歪、割れ等が発生することがないとい
う、本発明特有の効果が得られる。また、複数個の構成
要素は、第１、２係合要素により、円周方向にはシール
部が摺動自在に重なり合うように懸架されているので、
構成要素間の円周方向がシールされる。また、高さ方向
には下段の構成要素がその上段の隣合う構成要素の両方
に跨るように懸架されているので、構成要素の動きがあ
る程度拘束される。したがって、円周方向の接続強度が
大きくなり、構成要素が稼動中に揺れ動くようなことは
なく、しかも従来のようなボルト締めの煩わしさもな
く、簡単に吊り下げ組立ができ、また分解も容易であ
る。さらには、サイクロン内筒の内周面には実質的に突
起がないので、すなわち従来のようなフランジがないの
で、排ガスに乱れが生じるようなこともない。さらに、
本発明によると、サイクロン内筒は、複数個の構成要素
から構成されているが、隣あった構成要素のシール部は
互いに摺動自在に重なり合いシールされているので、ま
た熱による応力がいずれの方向に生じても吸収でき、構
成要素に歪、割れ等が生じないので、排ガスのショート
パスによる圧力損失がないという効果も得られる。As described above, according to the present invention, the cyclone inner cylinder is formed to have a predetermined diameter and a predetermined height by connecting a plurality of constituent elements by suspension in the circumferential direction and the height direction. Therefore, the effect peculiar to the present invention can be obtained in that the stress caused by heat can be absorbed in any direction and the component is not distorted or cracked. Further, since the plurality of constituent elements are suspended by the first and second engaging elements so that the seal portions slidably overlap each other in the circumferential direction,
The circumferential direction between the components is sealed. Moreover, since the lower component is suspended in the height direction so as to straddle both the adjacent upper components, the movement of the component is restrained to some extent. Therefore, the connection strength in the circumferential direction is increased, the components do not sway during operation, and there is no need for the conventional bolt tightening, easy suspension assembly and easy disassembly. is there. Furthermore, since there is substantially no protrusion on the inner peripheral surface of the cyclone inner cylinder, that is, since there is no conventional flange, the exhaust gas is not disturbed. further,
According to the present invention, the cyclone inner cylinder is composed of a plurality of constituent elements, but since the seal portions of the adjacent constituent elements are slidably overlapped with each other and sealed, any stress due to heat is applied. Even if it occurs in the direction, it can be absorbed and no distortion or cracking occurs in the constituent elements, so that there is also an effect that there is no pressure loss due to a short path of exhaust gas.
【図１】 本発明の実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】 構成要素の実施例を示す図で、（イ）は、サ
イクロン内筒の内部から見た正面図であり、（ロ）は
（イ）において矢印方向ＢーＢで見た断面図である。FIG. 2 is a diagram showing an example of components, (a) is a front view as seen from the inside of a cyclone inner cylinder, and (b) is a cross-sectional view as seen in the direction of arrow BB in (a). Is.
【図３】 図２の（イ）において矢印方向Ｃ方向から見
た平面図である。FIG. 3 is a plan view seen from the direction of arrow C in FIG.
【図４】 図２の（イ）において矢印ＡーＡ方向に見た
断面図である。FIG. 4 is a cross-sectional view as seen in the direction of arrow AA in FIG.
１ サイクロン １０
サイクロン内筒 １１ａ、ｂ 第１、２の構成要素 １２
フック １３ 透孔 １６、１７
張出縁 Ｓ シール部1 cyclone 10
Cyclone inner cylinder 11a, b First and second components 12
Hook 13 Through hole 16, 17
Overhang edge S seal part
Claims (2)
とに懸架により接続されて、所定径、所定高さの、実質
的に突起のない内周面が形成されるサイクロン内筒であ
って、これらの複数個の構成要素の、組み立てられたとき上方
に位置する上方部には第１係合要素が、下方部には第２
係合要素が設けられていると共に、両側部には隣り合う
構成要素と摺動自在に重なり合うシール部が形成され、 これらの複数個の構成要素は、前記第１、２係合要素に
より、円周方向には前記シール部が摺動自在に重なり合
うように、そして高さ方向には下段の構成要素がその上
段の隣合う構成要素の両方に跨るように、懸架されてい
る ことを特徴とするサスペンションプレヒータのサイク
ロン内筒。1. A plurality of components are connected by suspended the circumferential direction and the height direction, a predetermined diameter, a predetermined height, substantially
A cyclone inner cylinder in which an inner peripheral surface without a protrusion is formed, which is an upper part of a plurality of these components when assembled.
The first engaging element on the upper part and the second part on the lower part
Engagement elements are provided and are adjacent on both sides
A seal portion is formed that slidably overlaps the constituent elements, and these plural constituent elements are combined with the first and second engaging elements.
Therefore, the seal parts are slidably overlapped in the circumferential direction.
And in the height direction, the lower components are
Suspended so that it spans both adjacent components of the tier
Cyclone barrel of the suspension preheater, characterized in that that.
あり、第２係合要素は、透孔である、サスペンションプ
レヒータのサイクロン内筒。2. A first engaging element of claim 1 wherein is a hook, the second engagement element is Ru holes der cyclone inner cylinder of the suspension preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4231624A JP2533041B2 (en) | 1992-08-07 | 1992-08-07 | Suspension preheater cyclone inner cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4231624A JP2533041B2 (en) | 1992-08-07 | 1992-08-07 | Suspension preheater cyclone inner cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06101977A JPH06101977A (en) | 1994-04-12 |
| JP2533041B2 true JP2533041B2 (en) | 1996-09-11 |
Family
ID=16926427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4231624A Expired - Fee Related JP2533041B2 (en) | 1992-08-07 | 1992-08-07 | Suspension preheater cyclone inner cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2533041B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4980593B2 (en) * | 2005-08-02 | 2012-07-18 | 大平洋特殊鋳造株式会社 | Cyclone inner cylinder of suspension preheater |
| DK176211B1 (en) * | 2006-03-24 | 2007-02-05 | Smidth As F L | Cyclone separator e.g. for use in cement manufacture, has annular disc in supporting element arranged between cyclone housing and discharge duct, forming clearance between housing and duct and disc |
| CN102574570B (en) | 2009-09-17 | 2014-11-12 | 贝尔直升机泰克斯特龙公司 | Removable horizontal stabilizer for helicopter |
| JP5954534B2 (en) * | 2012-07-20 | 2016-07-20 | 株式会社Ihi | Cyclone and circulating fluidized bed boiler |
| CN111441595A (en) * | 2020-04-22 | 2020-07-24 | 五冶集团上海有限公司 | Method for installing oversized cyclone |
| CN112807863A (en) * | 2021-02-05 | 2021-05-18 | 南京西普水泥工程集团有限公司 | Hanging plate |
| CN117989867B (en) * | 2024-04-01 | 2024-08-20 | 海浦电子(江苏)有限公司 | Preheater hanging piece convenient to replace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH027436U (en) * | 1988-06-14 | 1990-01-18 |
-
1992
- 1992-08-07 JP JP4231624A patent/JP2533041B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06101977A (en) | 1994-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4505051A (en) | Cyclone heat exchanger including segmented immersion pipe | |
| US4130300A (en) | Composite abrasion resistant pipe elbow | |
| JP2533041B2 (en) | Suspension preheater cyclone inner cylinder | |
| CN1027425C (en) | Cyclone separator wall refractory material system | |
| US4492382A (en) | Refractory fiber ladle preheater sealing rings | |
| KR20130065648A (en) | Apparatus and method for gas tight secondary stave support | |
| CA2175396C (en) | Method of installing a refractory lining | |
| CN101718496A (en) | Fire-proof cladding element | |
| EP2199718B1 (en) | Lime kiln | |
| US3445099A (en) | Rotary kiln linings | |
| RU2664100C1 (en) | Submersible pipe for cyclone separator | |
| JP4980593B2 (en) | Cyclone inner cylinder of suspension preheater | |
| CN105937621B (en) | A kind of spandrel girder wears the sealing structure of flue backplate | |
| JPH03502782A (en) | Ceramic brick retaining band for steel ladle | |
| CN103424000A (en) | Ceramic inner cylinder of preheater | |
| JPH02277713A (en) | Skid pipe | |
| CN210089395U (en) | Water-cooled furnace cover of submerged arc furnace | |
| JPH027436Y2 (en) | ||
| CN106995705B (en) | Coke oven ascending pipe base | |
| US4919398A (en) | Attachment structure mountings for refractory fiber ladle preheater sealing rings | |
| CA1058867A (en) | Plate structure for a liquid metal container closure | |
| US4605206A (en) | Suspended seal ring for ladle preheater | |
| JPS6314319Y2 (en) | ||
| JPS6349591B2 (en) | ||
| US1792868A (en) | Hot top |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090627 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100627 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100627 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110627 Year of fee payment: 15 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120627 Year of fee payment: 16 |
|
| LAPS | Cancellation because of no payment of annual fees |