JPH03192012A - Transfer method for granular resin - Google Patents
Transfer method for granular resinInfo
- Publication number
- JPH03192012A JPH03192012A JP1330261A JP33026189A JPH03192012A JP H03192012 A JPH03192012 A JP H03192012A JP 1330261 A JP1330261 A JP 1330261A JP 33026189 A JP33026189 A JP 33026189A JP H03192012 A JPH03192012 A JP H03192012A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- slurry
- receiving hopper
- screw conveyor
- resin slurry
- 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
Links
- 239000011347 resin Substances 0.000 title claims abstract description 89
- 229920005989 resin Polymers 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims description 19
- 239000002002 slurry Substances 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000004140 cleaning Methods 0.000 claims description 9
- 230000036571 hydration Effects 0.000 abstract 1
- 238000006703 hydration reaction Methods 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Screw Conveyors (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は例えば原子力発電所等から発生するイオン交換
樹脂のような多量の水を含んだ粒状樹脂を焼却処分する
ため、水切りを行いながら次工程へ移送するための粒状
樹脂の移送方法に関するものである。Detailed Description of the Invention (Field of Industrial Application) The present invention is designed to incinerate granular resin containing a large amount of water, such as ion exchange resin generated from nuclear power plants, etc. The present invention relates to a method for transporting granular resin to a process.
（従来の技術）
上記のような多量の水を含んだ粒状樹脂（通常、含水率
９０％程度）は、スクリューコンベア式の移送装置によ
り水切りしつつ定量供給装置へ移送され、樹脂焼却炉で
焼却処分したり、固化剤を加えて固化処分されている。(Prior art) The granular resin containing a large amount of water as described above (usually about 90% water content) is transferred to a quantitative feeding device while being drained by a screw conveyor-type transfer device, and then incinerated in a resin incinerator. They are either disposed of or solidified by adding a solidifying agent.
このための従来の移送方法は、例えば実開昭６２−７９
５１０号公報に示されるように、下部に水切り用のスク
リーンを有する受入ホッパーから斜め上向きに延びるパ
イプ内に設けられたスクリューコンベアにより樹脂スラ
リーの水切りを行い、水切り後の樹脂スラリーを樹脂出
口へ移送するものであった。Conventional transfer methods for this purpose include, for example,
As shown in Publication No. 510, the resin slurry is drained by a screw conveyor installed in a pipe extending diagonally upward from a receiving hopper having a draining screen at the bottom, and the drained resin slurry is transferred to the resin outlet. It was something to do.
ところがこのような従来の方法は、樹脂スラリー中の樹
脂の粉砕物や夾雑物等により水切り用のスクリーンが次
第に目詰まりして水切り後の樹脂スラリーの含水率が次
第に上昇してしまうという問題があった。またこれに伴
って受入ホッパー内の樹脂スラリーの水位が上昇して自
然の水切りがほとんど行われな（なり、水切り後の樹脂
スラリーの含水率が更に上昇してその結果次工程の樹脂
の焼却処理において焼却炉の負担が増加し、燃料の増加
をもたらしたり、炉材にひび割れ等の悪影響をもたらす
という問題があった。However, such conventional methods have a problem in that the draining screen gradually becomes clogged with crushed resin particles and foreign substances in the resin slurry, and the water content of the resin slurry after draining gradually increases. Ta. In addition, as a result, the water level of the resin slurry in the receiving hopper rises, and natural drainage is almost impossible. However, there was a problem in that the load on the incinerator increased, resulting in an increase in fuel consumption, and causing adverse effects such as cracks on the furnace material.
（発明が解決しようとする課題）
本発明は上記のような従来の問題点を解決して、含水率
が９０％程度の樹脂スラリーを含水率が６０％以下とな
るまで確実に水切りしつつ次工程へ移送することができ
、これにより焼却炉の負担の軽減を図ることができる粒
状樹脂の移送方法を提供するために完成されたものであ
る。(Problems to be Solved by the Invention) The present invention solves the conventional problems as described above, and makes it possible to reliably drain a resin slurry with a water content of about 90% until the water content becomes 60% or less, and then proceed to the next step. This was completed in order to provide a method for transporting granular resin that can be transported to a process, thereby reducing the burden on the incinerator.
（課題を解決するための手段）
上記の課題は、水を含んだ粒状樹脂からなる樹脂スラリ
ーを、下部に水切り用のスクリーンを有する受入ホッパ
ー内に供給し、斜め上向きのパイプ内に設けられたスク
リューコンベアにより次工程へ移送するにあたり、スク
リューコンベアの樹脂出口の高さを受入ホッパー内の樹
脂スラリーの水位以上とするとともに、樹脂出口におけ
る水切り後の樹脂スラリーの移送量を検知、演算し、こ
の演算量に応じてスクリューコンベアのモータを制御す
ることを特徴とする第１の発明により解決することがで
きる。(Means for solving the problem) The above problem is to supply a resin slurry made of granular resin containing water into a receiving hopper that has a screen for draining water at the bottom, and to supply a resin slurry made of granular resin containing water into a receiving hopper that is installed in a diagonally upward pipe. When transferring the resin slurry to the next process by the screw conveyor, the height of the resin outlet of the screw conveyor is set to be higher than the water level of the resin slurry in the receiving hopper, and the amount of transferred resin slurry after draining at the resin outlet is detected and calculated. The problem can be solved by the first invention, which is characterized in that the motor of the screw conveyor is controlled according to the amount of calculation.
また上記の課題は、水を含んだ粒状樹脂からなる樹脂ス
ラリーを、下部に水切り用のスクリーンを有する受入ホ
ッパー内に供給し、斜め上向きのパイプ内に設けられた
スクリューコンベアにより次工程へ移送するにあたり、
スクリューコンベアの樹脂出口の高さを受入ホッパー内
の樹脂スラリーの水位以上とするとともに、樹脂出口に
おける水切り後の樹脂スラリーの移送量を検知、演算し
、この演算量に応じて水切り用のスクリーンの洗浄装置
を制御することを特徴とする第２の発明により解決する
ことができる。In addition, the above problem involves supplying a resin slurry made of granular resin containing water into a receiving hopper with a screen for draining water at the bottom, and transporting it to the next process by a screw conveyor installed in a diagonally upward pipe. Hits the,
The height of the resin outlet of the screw conveyor is set to be higher than the water level of the resin slurry in the receiving hopper, and the amount of transferred resin slurry after draining at the resin outlet is detected and calculated, and the screen for draining is adjusted according to this calculated amount. The problem can be solved by the second invention, which is characterized in that the cleaning device is controlled.
（実施例）
以下にこれらの発明を図示の実施例によって詳細に説明
するが、まず移送装置の概略について説明する。(Example) These inventions will be explained in detail below with reference to illustrated examples, but first, the outline of the transfer device will be explained.
第１図において、（１）は樹脂スラリーの受入ホッパー
、（２）はこの受入ホッパー（１）から水平面に対して
１８″の角度で斜め上向きに延びるパイプである。なお
、パイプの傾斜角度は通常１５°〜２０°程度が好まし
い。このパイプ（２）の内部には減速機付モータ（３）
により駆動されるスクリューコンベア（４）が全長にわ
たって設けられており、樹脂スラリーの受入ホッパー（
１）の上部から供給された例えば９０％程度の水を含ん
だ粒状樹脂（樹脂の粒径３００〜４００μ）からなる樹
脂スラリーを先端の樹脂出口（５）まで移送する。また
（６）は樹脂スラリー受入ホ・ツバ−（１）の内部で樹
脂スラリーを中央のスクリューコンベア（４）に向かっ
て掻き寄せるための撹拌機であり、ホッパー内部でブリ
ッジが形成されることも併せて防止している。なお、樹
脂スラリー受入ホッパー（１）の中央部分にもブリッジ
防止用の撹拌機を設けておくことが好ましい。In Fig. 1, (1) is a receiving hopper for resin slurry, and (2) is a pipe extending diagonally upward from this receiving hopper (1) at an angle of 18'' with respect to the horizontal plane.The inclination angle of the pipe is Normally, the angle is preferably about 15° to 20°. Inside this pipe (2) is a motor with a speed reducer (3).
A screw conveyor (4) driven by the resin slurry receiving hopper (
A resin slurry made of granular resin (resin particle size: 300 to 400 μm) containing, for example, about 90% water, supplied from the upper part of 1), is transferred to the resin outlet (5) at the tip. Also, (6) is an agitator for scraping the resin slurry inside the resin slurry receiving hopper (1) toward the central screw conveyor (4), and a bridge may be formed inside the hopper. It is also prevented. In addition, it is preferable to provide a stirrer for preventing bridging also in the center of the resin slurry receiving hopper (1).
この樹脂スラリーの受入ホッパー（１）の下部には水切
り用のスクリーン（７）が設けられている。このための
スクリーン（７）としては、例えば目開きが３００〜３
５０ μ程度のものが使用され、樹脂スラリー中の水分
を下方の水出口（８）から排出することができる構造と
なっている。図示の実施例ではスクリーン（７）は受入
ホッパー（１）の底面に設けられているが、底部の側面
に設けてもよい。A draining screen (7) is provided at the bottom of the resin slurry receiving hopper (1). For example, the screen (7) for this purpose has an opening of 300 to 3
A material with a diameter of about 50 μm is used, and the structure is such that water in the resin slurry can be discharged from the water outlet (8) below. In the illustrated embodiment, the screen (7) is provided on the bottom of the receiving hopper (1), but it may also be provided on the side of the bottom.
なお、（Ｉｎは受入ホッパー（１）の投入孔、０２）は
受入ホッパー（１）内の水位を測定するための液面針、
（９）はパイプ（２）の内部に洗浄水を噴射するための
洗浄ノズル、θ■はパイフ責２）の先端から水切りされ
た樹脂スラリーを受取り、焼却炉へ一定量ずつ投入する
ための定量供給装置である。また０９は水切り用のスク
リーン（７）の下方から水を噴射して目詰まりを解消す
るための洗浄装置である。In addition, (In is the input hole of the receiving hopper (1), 02) is the liquid level needle for measuring the water level in the receiving hopper (1),
(9) is a cleaning nozzle for injecting cleaning water into the inside of the pipe (2), and θ■ is a metering nozzle for receiving the drained resin slurry from the tip of the pipe (2) and feeding it into the incinerator in fixed amounts. It is a supply device. Further, 09 is a cleaning device that sprays water from below the draining screen (7) to eliminate clogging.
次に本発明の粒状樹脂の移送方法について説明すると、
まず樹脂スラリー受入タンク内の含水率９０％程度の樹
脂スラリーをスラリー供給ポンプにより撹拌しつつ吸引
して受入ホッパー（１）内に投入したうえ、斜め上向き
のパイプ（２）内のスクリューコンベア（４）により次
工程の定量供給装置Ｑωへ移送する。このとき樹脂スラ
リーの受入ホッパー（１）の下部に水切り用のスクリー
ン（７）を設けであるので、樹脂スラリー受入ホッパー
（１）内に投入された樹脂スラリー中の水分のかなりの
部分はこのスクリーン（７）により分離され、水出口（
８）から自然に排出される。また本発明においては、ス
クリューコンベア（４）の樹脂出口（５）の高さを受入
ホッパー（１）内の樹脂スラリーの水位以上としたので
、樹脂スラリーがパイプ（２）内をスクリューコンベア
（４）により移送されて行く間に樹脂ス、ラリ−は更に
水切りされ、パイプ（２）の先端の樹脂出口（５）から
次工程の定量供給装置ＯＩへ入る部分では含水率を６０
％未満まで低下させることができる。このようにして含
水率を低下させた粒状樹脂は定量供給装置ＯＩによって
焼却炉へ投入され焼却処理され、一方分離された水は樹
脂濾液タンクに収納したうえ、ポンプによって廃スラツ
ジ系側へ返送されることとなる。Next, the method for transferring granular resin of the present invention will be explained.
First, the resin slurry with a water content of about 90% in the resin slurry receiving tank is stirred and suctioned by the slurry supply pump, and then put into the receiving hopper (1). ) to the next step, the quantitative supply device Qω. At this time, since a draining screen (7) is provided at the bottom of the resin slurry receiving hopper (1), a considerable portion of the moisture in the resin slurry introduced into the resin slurry receiving hopper (1) is absorbed by this screen. (7) and the water outlet (
8) is naturally excreted from Further, in the present invention, since the height of the resin outlet (5) of the screw conveyor (4) is set to be higher than the water level of the resin slurry in the receiving hopper (1), the resin slurry flows inside the pipe (2) onto the screw conveyor (4). ), the resin slurry is further drained of water, and the moisture content is reduced to 60 at the part where it enters the quantitative feeder OI in the next process from the resin outlet (5) at the tip of the pipe (2).
It can be reduced to less than %. The granular resin whose water content has been reduced in this way is fed into the incinerator by the quantitative feeder OI and incinerated, while the separated water is stored in the resin filtrate tank and returned to the waste sludge system by the pump. The Rukoto.
しかし前述したように、移送を行ううちに次第に樹脂ス
ラリー中の樹脂の粉砕物や夾雑物等により水切り用のス
クリーン（７）が次第に目詰まりを生じ、水分が増加し
てパイプ（２）の先端からの樹脂スラリーの吐出量が次
第に低下する傾向を示す、そこで第１の発明では樹脂出
口（５）における水切り後の樹脂スラリーの移送量を重
量計０４）によって検知し、制御演算器０５）で演算し
てこの演算量に応じてモータ制御器０１９によりスクリ
ューコンベア（４）のモータ（３）を制御する。ここで
モータ（３）の制御とはモータ（３）のオンオフ制御や
回転数の制御を含むものとする。このように第１の発明
では吐出量の低下をモータ（３）の回転数のアップ等で
補うことができ、また移送量が所定のレベル以下まで低
下したときにはモータ（３）を停止して警報を発するよ
うにすることができる。なお、モータ（３）を停止した
際には、洗浄装置を稼働させてスクリーン（７）の目詰
まりを解消して樹脂スラリーの移動量を回復させるまた
第２の発明では、樹脂出口（５）における水切り後の樹
脂スラリーの移送量を重量針側によって検知し、制御演
算器６！９で演算してこの演算量に応じて水切り用のス
クリーン（７）の洗浄装置６３１を制御する。この結果
、スクリーン（７）の目詰まりが進行すると自動的に洗
浄装置側による洗浄が行われてスクリーン（７）の目詰
まりが解消されることとなり、樹脂スラリーの移送量を
回復させることができる。なお実施例に示すように、第
１の発明と第２の発明を同時に実施することもできるこ
とはいうまでもない。However, as mentioned above, as the resin slurry is being transferred, the draining screen (7) gradually becomes clogged with crushed resin and foreign matter in the resin slurry, and moisture increases, causing the end of the pipe (2) to become clogged. Therefore, in the first invention, the amount of resin slurry discharged from the resin outlet (5) after draining is detected by the weighing scale 04), and the amount of the resin slurry discharged from the resin outlet (5) is detected by the control calculator 05). The motor (3) of the screw conveyor (4) is controlled by the motor controller 019 according to the calculated amount. Here, the control of the motor (3) includes on/off control and rotation speed control of the motor (3). In this way, in the first invention, the decrease in the discharge amount can be compensated for by increasing the rotation speed of the motor (3), and when the transfer amount decreases to a predetermined level or less, the motor (3) is stopped and an alarm is issued. can be made to emit. In addition, when the motor (3) is stopped, the cleaning device is operated to unclog the screen (7) and restore the moving amount of the resin slurry. The transfer amount of the resin slurry after draining is detected by the weight needle side, and the control calculator 6!9 calculates the amount, and the cleaning device 631 for the draining screen (7) is controlled according to this calculated amount. As a result, when the clogging of the screen (7) progresses, cleaning is automatically performed by the cleaning device to eliminate the clogging of the screen (7), and the amount of resin slurry transferred can be restored. . Note that, as shown in the examples, it goes without saying that the first invention and the second invention can be implemented simultaneously.
（発明の効果）
以上に説明したように、第１の発明の粒状樹脂の移送方
法によれば、スクリーンが次第に目詰まりした場合にも
ほぼ一定量の樹脂スラリーを次工程へ移送することがで
きる。また第２の発明により
れば、スクリーンが次第に目詰まりした場合には自動的
に洗浄を行って目詰まりを回復することができ、含水率
が９０％程度の樹脂スラリーを含水率が６０％以下とな
るまで確実に水切りしつつ次工程へ移送することができ
る。従って本発明によれば焼却炉の負担を軽減すること
が可能となる。(Effects of the Invention) As explained above, according to the method for transferring granular resin of the first invention, even if the screen gradually becomes clogged, a substantially constant amount of resin slurry can be transferred to the next process. . Further, according to the second invention, when the screen becomes gradually clogged, it is possible to automatically clean it to recover the clogging, and to convert resin slurry with a water content of about 90% to a water content of 60% or less. It can be transferred to the next process while being reliably drained until it becomes . Therefore, according to the present invention, it is possible to reduce the burden on the incinerator.
よって本発明は従来の問題点を一掃した粒状樹脂の移送
方法として、産業の発展に寄与するとこ。Therefore, the present invention contributes to the development of industry as a method for transporting granular resin that eliminates the problems of the conventional method.
ろは極めて大きいものがある。Some of them are extremely large.
第１図は本発明の詳細な説明する一部切欠正面図である
。
（１）：樹脂スラリー受入ホッパー、（２）：パイプ、
（４）ニスクリユーコンベア、（５）：樹脂出口、（７
）ニスクリーン。FIG. 1 is a partially cutaway front view illustrating the present invention in detail. (1): Resin slurry receiving hopper, (2): Pipe,
(4) Varnish screw conveyor, (5) Resin outlet, (7
) Niclean.
Claims (1)
に水切り用のスクリーン（７）を有する受入ホッパー（
１）内に供給し、斜め上向きのパイプ（２）内に設けら
れたスクリューコンベア（４）により次工程へ移送する
にあたり、スクリューコンベア（４）の樹脂出口（５）
の高さを受入ホッパー（１）内の樹脂スラリーの水位以
上とするとともに、樹脂出口（５）における水切り後の
樹脂スラリーの移送量を検知、演算し、この演算量に応
じてスクリューコンベア（４）のモータ（３）を制御す
ることを特徴とする粒状樹脂の移送方法。 ２、水を含んだ粒状樹脂からなる樹脂スラリーを、下部
に水切り用のスクリーン（７）を有する受入ホッパー（
１）内に供給し、斜め上向きのパイプ（２）内に設けら
れたスクリューコンベア（４）により次工程へ移送する
にあたり、スクリューコンベア（４）の樹脂出口（５）
の高さを受入ホッパー（１）内の樹脂スラリーの水位以
上とするとともに、樹脂出口（５）における水切り後の
樹脂スラリーの移送量を検知、演算し、この演算量に応
じて水切り用のスクリーン（７）の洗浄装置（１３）を
制御することを特徴とする粒状樹脂の移送方法。[Claims] 1. A resin slurry made of granular resin containing water is transferred to a receiving hopper (7) having a draining screen (7) at the bottom.
1) and transferred to the next process by the screw conveyor (4) provided in the diagonally upward pipe (2), the resin outlet (5) of the screw conveyor (4)
The height of the resin slurry in the receiving hopper (1) is set to be higher than the water level of the resin slurry in the receiving hopper (1), and the transfer amount of the resin slurry after draining at the resin outlet (5) is detected and calculated, and the screw conveyor (4 ) A method for transporting granular resin, the method comprising controlling a motor (3) of a motor (3). 2. The resin slurry made of granular resin containing water is transferred to a receiving hopper (7) with a screen (7) for draining water at the bottom.
1) and transferred to the next process by the screw conveyor (4) provided in the diagonally upward pipe (2), the resin outlet (5) of the screw conveyor (4)
The height of the resin slurry in the receiving hopper (1) is set to be higher than the water level of the resin slurry in the receiving hopper (1), and the amount of transferred resin slurry after draining at the resin outlet (5) is detected and calculated. (7) A method for transferring granular resin, comprising controlling the cleaning device (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1330261A JPH085534B2 (en) | 1989-12-20 | 1989-12-20 | Granular resin transfer method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1330261A JPH085534B2 (en) | 1989-12-20 | 1989-12-20 | Granular resin transfer method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03192012A true JPH03192012A (en) | 1991-08-21 |
| JPH085534B2 JPH085534B2 (en) | 1996-01-24 |
Family
ID=18230664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1330261A Expired - Lifetime JPH085534B2 (en) | 1989-12-20 | 1989-12-20 | Granular resin transfer method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH085534B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966134A (en) * | 2017-05-11 | 2017-07-21 | 铜陵市三诺电子有限公司 | A kind of batcher of convenient regulation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012562U (en) * | 1983-07-05 | 1985-01-28 | 外川 純司 | Core wood for winding cloth |
| JPS6279510U (en) * | 1985-11-07 | 1987-05-21 | ||
| JPS62169276U (en) * | 1986-04-18 | 1987-10-27 | ||
| JPS6429326U (en) * | 1987-08-11 | 1989-02-21 |
-
1989
- 1989-12-20 JP JP1330261A patent/JPH085534B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012562U (en) * | 1983-07-05 | 1985-01-28 | 外川 純司 | Core wood for winding cloth |
| JPS6279510U (en) * | 1985-11-07 | 1987-05-21 | ||
| JPS62169276U (en) * | 1986-04-18 | 1987-10-27 | ||
| JPS6429326U (en) * | 1987-08-11 | 1989-02-21 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966134A (en) * | 2017-05-11 | 2017-07-21 | 铜陵市三诺电子有限公司 | A kind of batcher of convenient regulation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH085534B2 (en) | 1996-01-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5811016A (en) | Method and apparatus for removing sand from waste water loaded with sand and organic substances | |
| JPS591859B2 (en) | Drain cleaning device | |
| CN205933273U (en) | Automatic dosing system of water treatment agent and multiple medicines agent dosing system who constitutes thereof | |
| KR950004654B1 (en) | Method of producing aqueous solution of slaked lime and apparatus therefor | |
| JP2008073670A (en) | Belt-type concentrator | |
| US11897800B2 (en) | Fluidized bed pellet reactor water softener and process for softening water | |
| US6254267B1 (en) | Method and apparatus for mixing dry powder into liquids | |
| CN208120983U (en) | A kind of milk of lime automatic adding device | |
| JPH03192012A (en) | Transfer method for granular resin | |
| CN217780923U (en) | Improve helping of ammonia process desulfurization slurry liquid performance and strain device | |
| JP3089101B2 (en) | Quantitative feeder for granular solids | |
| JP2001270378A (en) | Washing and loading methods for concrete mixer truck | |
| CN213680174U (en) | Slag water self-circulation utilization system of thermal power plant | |
| US6592246B2 (en) | Method and installation for forming and maintaining a slurry | |
| JPH04171040A (en) | Apparatus and method for quantitatively discharging dried powder active carbon to dissolving tank | |
| JP3062036B2 (en) | Apparatus and method for producing slaked lime solution for tap water reforming | |
| JP3059340B2 (en) | Powdered activated carbon injection device | |
| CN115159756B (en) | Filtering assisting device and method for improving performance of ammonia desulfurization sewage slurry | |
| JP4016131B2 (en) | Rice washing equipment | |
| JPS6240643Y2 (en) | ||
| US4145087A (en) | System for hydraulically transporting solid material | |
| EP1412089A2 (en) | Concrete recovery | |
| US3001294A (en) | Apparatus for the recovery of solids and liquid from flour mill wastes | |
| JP2775213B2 (en) | Gravity drainage dewatering tank | |
| CN2167781Y (en) | Automatic sand, cobblestone and cement separating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090124 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090124 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100124 Year of fee payment: 14 |
|
| EXPY | Cancellation because of completion of term |