JPH0565203B2 - - Google Patents
Info
- Publication number
- JPH0565203B2 JPH0565203B2 JP61281887A JP28188786A JPH0565203B2 JP H0565203 B2 JPH0565203 B2 JP H0565203B2 JP 61281887 A JP61281887 A JP 61281887A JP 28188786 A JP28188786 A JP 28188786A JP H0565203 B2 JPH0565203 B2 JP H0565203B2
- Authority
- JP
- Japan
- Prior art keywords
- cake
- discharged
- stock solution
- amount
- solution tank
- 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
- 239000011550 stock solution Substances 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 23
- 230000007423 decrease Effects 0.000 claims description 18
- 239000004744 fabric Substances 0.000 claims description 16
- 238000012432 intermediate storage Methods 0.000 claims description 16
- 230000018044 dehydration Effects 0.000 claims description 9
- 238000006297 dehydration reaction Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000011002 quantification Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002002 slurry Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Description
【発明の詳細な説明】
イ 発明の目的
産業上の利用分野
この発明は石炭などの粉粒体のスラリーの脱水
機、特に真空回転脱水機に関するものであり、脱
水されて排出されるケーキの定量化を可能にする
ものである。[Detailed Description of the Invention] A. Purpose of the Invention Industrial Application Field The present invention relates to a dehydrator for slurry of powder or granular material such as coal, particularly a vacuum rotary dehydrator. This makes it possible to
従来の技術
真空回転脱水機から排出されるケーキの量は、
脱水機における回転ドラムの回転数、真空度、液
レベル、濾布の状況等や原液（スラリー）の性状
などの変化によつて増減し厳密に定量化すること
は難しく、排出されるケーキの量を定量化しよう
とする試みはこれまでなされていなかつた。Conventional technology The amount of cake discharged from a vacuum rotary dehydrator is
The amount of cake discharged increases or decreases depending on changes in the rotation speed of the rotating drum in the dehydrator, the degree of vacuum, the liquid level, the condition of the filter cloth, the properties of the raw solution (slurry), etc., and it is difficult to quantify it strictly. No attempt has been made to quantify this.
脱水機に後続するケーキ処理工程においてケー
キ量の変動が望ましくない場合には、脱水機とケ
ーキ処理工程の中間に大容量のタンクを設置して
排出ケーキを一旦貯え、そこから適当なフイーダ
ーで定量的に次の工程に供給する方法が一般的に
行われている。しかしこのような方法では、ケー
キの性状によつては中間タンク内で固結し閉塞を
起こしたり、またフイーダーが円滑に作動しなか
つたりするなどの不都合を生じ連続操作が困難な
場合がある。また中間タンクを設置することは、
設備費と敷地面積を余分に要することになる。 If fluctuations in the amount of cake are undesirable in the cake processing process that follows the dehydrator, a large-capacity tank is installed between the dehydrator and the cake processing process to temporarily store the discharged cake, and from there it is quantified using an appropriate feeder. A commonly used method is to supply the raw material to the next step. However, in such a method, depending on the nature of the cake, it may solidify in the intermediate tank and cause blockage, or the feeder may not operate smoothly, making continuous operation difficult. Also, installing an intermediate tank is
This will require additional equipment costs and additional site area.
発明が解決しようとする問題点
本発明は前記のような従来の真空回転脱水機の
欠点を解決するもので、脱水機自体の濾過特性を
コントロールすることにより脱水機から排出され
るケーキ量の変動を抑え定量化して、脱水機に後
続するケーキ処理工程の連続運転を円滑にしよう
とするものである。Problems to be Solved by the Invention The present invention solves the drawbacks of the conventional vacuum rotary dehydrator as described above.The present invention solves the above-mentioned drawbacks of the conventional vacuum rotary dehydrator. The aim is to suppress and quantify the amount of water used to remove water, thereby facilitating continuous operation of the cake treatment process that follows the dehydrator.
ロ 発明の構成
問題点を解決するための手段
本発明の排出ケーキ定量化脱水機構は、真空回
転脱水機における濾布を設けた回転ドラムの下部
を浸漬した原液槽の液面を上下する手段と、排出
されるケーキ量の増減を検知する手段と、ケーキ
量の増減に応じて原液槽の液面を下降又は上昇さ
せる演算・指令装置とを有するものである。B. Means for Solving the Constituent Problems of the Invention The discharged cake quantification dehydration mechanism of the present invention is a means for raising and lowering the liquid level of a stock solution tank in which the lower part of a rotating drum provided with a filter cloth is immersed in a vacuum rotary dehydrator. , a means for detecting an increase or decrease in the amount of cake to be discharged, and an arithmetic/command device that lowers or raises the liquid level in the stock solution tank in accordance with the increase or decrease in the amount of cake.
さらに上記の演算・指令装置は、原液槽の液面
を下降又は上昇させる指令を与えると共に、回転
ドラムの回転数をも制御する機能を有するもので
あつてもよい。 Further, the arithmetic/instruction device described above may have a function of giving a command to lower or raise the liquid level in the stock solution tank, and also control the number of rotations of the rotating drum.
脱水機から排出されるケーキ量の増減を検知す
る手段の具体例としては、排出されるケーキをベ
ルトコンベヤー上に位置し底部が開放された中間
貯溜槽の上方から供給し、その中間貯溜槽の底部
とベルトコンベヤーとの間の間隙からケーキをベ
ルトコンベヤーにより一定割合で抜き出すように
構成された中間貯溜槽内の貯溜ケーキの容積又は
重量の増減を測定するという手段が挙げられる。 A specific example of a means for detecting an increase or decrease in the amount of cake discharged from a dehydrator is to supply the discharged cake from above an intermediate storage tank located on a belt conveyor and having an open bottom. One example of this method is to measure the increase or decrease in the volume or weight of the stored cake in an intermediate storage tank configured to extract the cake at a constant rate by the belt conveyor from the gap between the bottom and the belt conveyor.
濾布を設けた回転ドラムの下部を浸漬した原液
槽の液面を上下する手段の具体例としては、原液
槽の側壁に設けられた上下可能の堰板が挙げられ
る。 A specific example of the means for raising and lowering the liquid level of the stock solution tank in which the lower part of the rotating drum provided with the filter cloth is immersed is a weir plate that is provided on the side wall of the stock solution tank and can be moved up and down.
以下本発明の構成を第１図により具体的に説明
する。 The configuration of the present invention will be specifically explained below with reference to FIG.
真空回転脱水機は大別して回転ドラム１、濾布
２、原液槽３から成つているが、本発明において
は濾布２を設けた回転ドラム１の下部を浸漬した
前液槽３の液面を上下する手段を設ける。 The vacuum rotary dehydrator is roughly divided into a rotating drum 1, a filter cloth 2, and a stock solution tank 3. In the present invention, the liquid level of the pre-liquid tank 3 in which the lower part of the rotating drum 1 with the filter cloth 2 is immersed is Provide means for raising and lowering.
例えば原液槽３の側壁４に堰板５を設け、これ
を上下させれば、原液槽３内の液はこの堰板５の
高さでオーバーフローし、原液槽３の液面は上下
することになる。堰板５は電動機、水圧、油圧、
空気圧などにより、演算・指令装置からの指令に
応じて上下できるようにする。 For example, if a weir plate 5 is provided on the side wall 4 of the stock solution tank 3 and it is moved up and down, the liquid in the stock solution tank 3 will overflow at the height of this weir board 5, and the liquid level in the stock solution tank 3 will rise and fall. Become. The weir plate 5 is equipped with an electric motor, water pressure, hydraulic pressure,
It can be raised or lowered using air pressure or other means in response to commands from a calculation/command device.
このほか、原液槽自体を上下するようにしても
よいが、上下可能の堰板を用いるほうが簡便であ
る。 Alternatively, the stock solution tank itself may be moved up and down, but it is easier to use a weir plate that can be moved up and down.
脱水機から排出されるケーキ量の増減を検知す
る手段も種々考えられるが、図示した例について
説明する。 Although various means for detecting an increase or decrease in the amount of cake discharged from the dehydrator are possible, the illustrated example will be described.
脱水機から排出されたケーキを、第１のベルト
コンベヤー１３から第２のベルトコンベヤー１４
上に位置し底部が開放された中間貯溜槽１５の上
方から供給すると、この中間貯溜槽１５は底部が
開放されているので、中間貯溜槽１５内のケーキ
は、ベルトコンベヤー１４の移動につれて中間貯
溜槽１５の底部とベルトコンベヤー１４との間の
間隙から一定割合で抜き出される。 The cake discharged from the dehydrator is transferred from the first belt conveyor 13 to the second belt conveyor 14.
When feeding from above the intermediate storage tank 15 which is located above and has an open bottom, the cake in the intermediate storage tank 15 is transferred to the intermediate storage tank as the belt conveyor 14 moves, since the bottom of the intermediate storage tank 15 is open. It is extracted at a constant rate from the gap between the bottom of the tank 15 and the belt conveyor 14.
この一定割合の抜き出しケーキ量に比し脱水機
から排出されるケーキ量が多い場合には、余分の
ケーキは中間貯溜槽１５内に蓄積し、貯溜ケーキ
の容積（高さに比例）も重量も増加する。またこ
の一定割合の抜き出しケーキ量に比し脱水機から
排出されるケーキ量が少ない場合には、不足のケ
ーキは中間貯溜槽１５内から排出され、貯溜ケー
キの容積（高さに比例）も重量も減少する。 When the amount of cake discharged from the dehydrator is larger than the amount of cake extracted at a fixed rate, the excess cake accumulates in the intermediate storage tank 15, and the volume (proportional to the height) and weight of the stored cake decrease. To increase. In addition, when the amount of cake discharged from the dehydrator is small compared to the amount of cake extracted at a certain rate, the insufficient cake is discharged from the intermediate storage tank 15, and the volume (proportional to the height) of the stored cake also increases due to the weight. will also decrease.
そこで中間貯溜槽１５内のケーキの高さを、例
えば界面計１６により上限位置、界面計１７によ
り下限位置でキヤツチできるようにしておけば、
脱水機から排出されるケーキ量の増減を検知する
ことができる。 Therefore, if the height of the cake in the intermediate storage tank 15 can be caught at the upper limit position using the interface meter 16 and at the lower limit position using the interface meter 17, for example,
It is possible to detect increases and decreases in the amount of cake discharged from the dehydrator.
またベルトコンベヤー１４と中間貯溜槽１５の
合計重量を計量機１８で測定することによつても
脱水機から排出されるケーキ量の増減を検知する
ことができる。 Also, by measuring the total weight of the belt conveyor 14 and the intermediate storage tank 15 with the weighing machine 18, it is possible to detect an increase or decrease in the amount of cake discharged from the dehydrator.
ケーキ量の増減に応じて原液槽の液面を下降又
は上昇させる演算・指令装置１９としては、所要
の機能を有するコンピユータを使用すればよい。 A computer having the required functions may be used as the arithmetic/instruction device 19 for lowering or raising the liquid level in the stock solution tank in accordance with the increase or decrease in the amount of cake.
作 用
原液タンク６内の原液は、ポンプ７、ライン８
を経て真空回転脱水機の原液槽３に供給される。
濾布２を設けた回転ドラム１の下部は原液槽３内
の原液９に浸漬しているので、回転ドラム１の内
部を真空に保つことにより原液中の固形分は濾布
２に吸引されて付着し、さらに回転ドラム１が回
転して原液槽３から出たところ（脱水部）で脱水
作用を受け、ドラムの回転につれて脱水が進みケ
ーキ状になる。Function The stock solution in the stock solution tank 6 is pumped through the pump 7 and line 8.
The liquid is then supplied to the stock solution tank 3 of the vacuum rotary dehydrator.
The lower part of the rotary drum 1 provided with the filter cloth 2 is immersed in the stock solution 9 in the stock solution tank 3, so by keeping the inside of the rotary drum 1 in a vacuum, the solids in the stock solution are sucked into the filter cloth 2. When the rotary drum 1 rotates and comes out of the stock solution tank 3 (dehydration section), it is subjected to a dehydration action, and as the drum rotates, dehydration progresses and it becomes cake-like.
堰板５をオーバーフローした原液は液受１０か
らライン１１を経て原液タンク６に戻される。 The stock solution overflowing the weir plate 5 is returned to the stock solution tank 6 from the liquid receiver 10 via a line 11.
濾布２上の脱水されたケーキは、濾布を反転さ
せる固定ロール１２の位置で濾布から剥離し、ベ
ルトコンベヤー１３上に落下し脱水機から排出さ
れる。 The dehydrated cake on the filter cloth 2 is peeled off from the filter cloth at the position of the fixed roll 12 that reverses the filter cloth, falls onto a belt conveyor 13, and is discharged from the dehydrator.
このケーキを中間貯溜槽１５の上方から供給し
て、前述の手段により検知された脱水機から排出
されるケーキ量の増減に関する情報を、演算・指
令装置１９に入力し、排出ケーキ量が多い場合に
は液面コントローラー２０に堰板５を下降させる
指令を与えれば、原液槽の液面は下降して、回転
ドラム１の下部が原液槽３内の原液９に浸漬して
いる部分が減少し、浸漬時間が短くなるので、濾
布２に付着したケーキ層はうすくなり、排出ケー
キ量は減少する。 This cake is supplied from above the intermediate storage tank 15, and information regarding the increase or decrease in the amount of cake discharged from the dehydrator detected by the above-mentioned means is inputted to the calculation/command device 19, and if the amount of discharged cake is large, When a command is given to the liquid level controller 20 to lower the weir plate 5, the liquid level in the stock solution tank is lowered, and the portion of the lower part of the rotating drum 1 immersed in the stock solution 9 in the stock solution tank 3 is reduced. Since the immersion time is shortened, the cake layer adhering to the filter cloth 2 becomes thinner, and the amount of discharged cake decreases.
これとは逆に、排出ケーキ量が少ない場合には
堰板５を上昇させる指令を与えれば、原液槽の液
面は上昇して、回転ドラム１の下部が原液槽３内
の原液９に浸漬している部分が増加し、浸漬時間
が長くなるので、濾布２に付着したケーキ層は厚
くなり、排出ケーキ量は増加する。 On the contrary, if the amount of discharged cake is small, if a command is given to raise the weir plate 5, the liquid level in the stock solution tank will rise and the lower part of the rotating drum 1 will be immersed in the stock solution 9 in the stock solution tank 3. As the soaking area increases and the soaking time becomes longer, the cake layer adhering to the filter cloth 2 becomes thicker and the amount of discharged cake increases.
回転ドラム１の回転数を増減させても濾布２に
付着したケーキ層の厚みは変化する。回転数を増
加するとケーキ層はうすくなるものの、ケーキ排
出スピードは当然速くなる。この両者の兼合いを
考えても回転数を上昇させれば単位時間における
ケーキ排出量が増加することは一般的に知られて
おり、この回転数と排出量の関係を利用してケー
キ排出量をコントロールをすることも出来る。 Even if the rotation speed of the rotating drum 1 is increased or decreased, the thickness of the cake layer attached to the filter cloth 2 changes. As the rotation speed increases, the cake layer becomes thinner, but the cake discharge speed naturally increases. Even considering the balance between the two, it is generally known that increasing the rotation speed increases the amount of cake discharged per unit time. You can also control.
しかし極度に回転ドラムの回転数を減少させた
場合は付着ケーキ層が異常に厚くなり、ケーキク
ラツクが発生してバキユームブレークによるトラ
ブルの原因となるので、原液槽の液面を低下させ
て浸漬時間の短縮を計る方がよい。 However, if the rotational speed of the rotating drum is extremely reduced, the adhering cake layer will become abnormally thick, causing cake cracks and problems due to vacuum breaks. It is better to measure the shortening of
即ち本発明により原液槽の液面を下降又は上昇
させる方が排出ケーキ量のコントロール範囲が広
くなる。回転ドラムの回転数制御を併用すれば排
出ケーキ量のコントロール範囲はなお広くなる。 That is, by lowering or raising the liquid level in the stock solution tank according to the present invention, the control range for the amount of discharged cake becomes wider. If it is also used to control the rotational speed of the rotating drum, the control range for the amount of cake discharged will be even wider.
ハ 発明の効果
脱水機から排出されるケーキ量を、脱水機に
後続する工程における所要量に一致するように
定量化することができる。C. Effects of the Invention The amount of cake discharged from the dehydrator can be quantified to match the amount required in the process subsequent to the dehydrator.
脱水機と後続する工程との中間に大容量のタ
ンクを設置する必要がなく、定量フイーダーも
不用である。 There is no need to install a large-capacity tank between the dehydrator and the subsequent process, and there is no need for a quantitative feeder.
ケーキが長時間滞留する場所がないので、ケ
ーキの性状の変化によつて生ずるトラブル、例
えばホツパーなどにおける詰まりが避けられ
る。本発明の場合、中間貯溜槽１５におけるケ
ーキの滞留時間を数10秒以内というような短時
間に抑えることができ、ケーキの性状の変化を
生じない。 Since there is no place for the cake to remain for a long time, troubles caused by changes in the properties of the cake, such as clogging in the hopper, are avoided. In the case of the present invention, the residence time of the cake in the intermediate storage tank 15 can be suppressed to a short time, such as within several tens of seconds, and no change in the properties of the cake occurs.
第１図は本発明の排出ケーキ定量化脱水機構の
実施態様の一例を説明するための図である。
１……回転ドラム、２……濾布、３……原液
槽、４……原液槽の側壁、５……堰板、６……原
液タンク、７……ポンプ、８……ライン、１９…
…原液槽内の原液、１０……液受、１１……ライ
ン、１２……固定ロール、１３，１４……ベルト
コンベヤー、１５……中間貯溜槽、１６，１７…
…界面計、１８……計量機、１９……演算・指令
装置、２０……液面コントローラー、２１……ド
ラム回転数コントローラー。
FIG. 1 is a diagram for explaining an example of an embodiment of the discharged cake quantification dehydration mechanism of the present invention. DESCRIPTION OF SYMBOLS 1... Rotating drum, 2... Filter cloth, 3... Stock solution tank, 4... Side wall of stock solution tank, 5... Weir plate, 6... Stock solution tank, 7... Pump, 8... Line, 19...
...Undiluted solution in the stock solution tank, 10...Liquid receiver, 11...Line, 12...Fixed roll, 13, 14...Belt conveyor, 15...Intermediate storage tank, 16, 17...
...Interface meter, 18...Measuring device, 19...Calculation/instruction device, 20...Liquid level controller, 21...Drum rotation speed controller.
Claims (1)
ラムの下部を浸漬した原液槽の液面を上下する手
段と、排出されるケーキ量の増減を検知する手段
と、ケーキ量の増減に応じて原液槽の液面を下降
又は上昇させる演算・指令装置とを有する排出ケ
ーキ定量化脱水機構。 ２ 演算・指令装置が、原液槽の液面を下降又は
上昇させると共に、回転ドラムの回転数をも制御
する機能を有するものである特許請求の範囲第１
項記載の排出ケーキ定量化脱水機構。 ３ 脱水機から排出されるケーキ量の増減を検知
する手段が、排出されるケーキをベルトコンベヤ
ー上に位置し底部が開放された中間貯溜槽の上方
から供給し、その中間貯溜槽の底部とベルトコン
ベヤーとの間の間隙からケーキをベルトコンベヤ
ーにより一定割合で抜き出すように構成された中
間貯溜槽内の貯溜ケーキの容積又は重量の増減を
測定するものである特許請求の範囲第１項又は第
２項記載の排出ケーキ定量化脱水機構。 ４ 濾布を設けた回転ドラムの下部を浸漬した原
液槽の液面を上下する機構が、原液槽の側壁に設
けられた上下可能の堰板である特許請求の範囲第
１項、第２項又は第３項記載の排出ケーキ定量化
脱水機構。[Scope of Claims] 1. Means for raising and lowering the liquid level of a raw solution tank in which the lower part of a rotary drum equipped with a filter cloth is immersed in a vacuum rotary dehydrator, means for detecting an increase or decrease in the amount of cake discharged, and means for detecting an increase or decrease in the amount of cake discharged. A discharged cake quantification dehydration mechanism having a calculation/command device that lowers or raises the liquid level in the stock solution tank according to an increase or decrease in the amount of liquid. 2. Claim 1, wherein the calculation/instruction device has the function of lowering or raising the liquid level in the stock solution tank and also controlling the rotation speed of the rotating drum.
Exhaust cake quantification dehydration mechanism as described in section. 3. The means for detecting an increase or decrease in the amount of cake discharged from the dehydrator supplies the discharged cake from above an intermediate storage tank located on a belt conveyor with an open bottom, and connects the bottom of the intermediate storage tank with the belt. Claims 1 or 2 are for measuring the increase or decrease in the volume or weight of the cake stored in the intermediate storage tank, which is configured to extract the cake at a constant rate by a belt conveyor from the gap between the storage tank and the conveyor. Exhaust cake quantification dehydration mechanism as described in section. 4. Claims 1 and 2, wherein the mechanism for raising and lowering the liquid level of the stock solution tank in which the lower part of the rotating drum provided with the filter cloth is immersed is a weir plate that is provided on the side wall of the stock solution tank and can be moved up and down. Or the discharged cake quantification dehydration mechanism described in paragraph 3.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61281887A JPS63137712A (en) | 1986-11-28 | 1986-11-28 | Dehydrating mechanism for fixing quantity of discharged cake |
| CN 87108038 CN1018431B (en) | 1986-11-28 | 1987-11-23 | Dewatering device of quantitative discharge filter cake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61281887A JPS63137712A (en) | 1986-11-28 | 1986-11-28 | Dehydrating mechanism for fixing quantity of discharged cake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63137712A JPS63137712A (en) | 1988-06-09 |
| JPH0565203B2 true JPH0565203B2 (en) | 1993-09-17 |
Family
ID=17645351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61281887A Granted JPS63137712A (en) | 1986-11-28 | 1986-11-28 | Dehydrating mechanism for fixing quantity of discharged cake |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS63137712A (en) |
| CN (1) | CN1018431B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117563311B (en) * | 2024-01-15 | 2024-03-19 | 山西普恒制药有限公司 | Injection production filtering device and filtering method |
-
1986
- 1986-11-28 JP JP61281887A patent/JPS63137712A/en active Granted
-
1987
- 1987-11-23 CN CN 87108038 patent/CN1018431B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63137712A (en) | 1988-06-09 |
| CN1018431B (en) | 1992-09-30 |
| CN87108038A (en) | 1988-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |