JPH06182104A - Distilling and recovering equipment for solvent - Google Patents
Distilling and recovering equipment for solventInfo
- Publication number
- JPH06182104A JPH06182104A JP35548992A JP35548992A JPH06182104A JP H06182104 A JPH06182104 A JP H06182104A JP 35548992 A JP35548992 A JP 35548992A JP 35548992 A JP35548992 A JP 35548992A JP H06182104 A JPH06182104 A JP H06182104A
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- distillation
- pressure
- temperature
- 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.)
- Pending
Links
- 239000002904 solvent Substances 0.000 title claims abstract description 98
- 238000004821 distillation Methods 0.000 claims abstract description 44
- 239000012535 impurity Substances 0.000 claims abstract description 37
- 238000011084 recovery Methods 0.000 claims abstract description 18
- 238000001704 evaporation Methods 0.000 claims description 29
- 230000008020 evaporation Effects 0.000 claims description 24
- 230000008016 vaporization Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000009834 vaporization Methods 0.000 abstract 4
- 238000005406 washing Methods 0.000 abstract 2
- 238000004140 cleaning Methods 0.000 description 17
- 239000000295 fuel oil Substances 0.000 description 8
- 238000009835 boiling Methods 0.000 description 7
- 239000003208 petroleum Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、特に、石油系溶剤の蒸
留回収に適した、溶剤蒸留回収装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solvent distillation recovery apparatus, which is particularly suitable for distillation recovery of petroleum-based solvents.
【０００２】[0002]
【従来の技術】機械部品や製品などから、加工油、さび
止め油、焼き入れ油など（以下重質油という）を除去す
るために、従来は、Ｒ−１１３（フロン）、トリクロル
・エタンなどの溶剤で洗浄し、重質油などの不純物を含
んだ洗浄溶剤は、蒸留して再使用していた。Ｒ−１１
３、トリクロル・エタンなどの塩素を含んだ溶剤は、難
燃性で、沸点も低いので、蒸留することが非常に容易で
ある。そのため、広く用いられていた。2. Description of the Related Art In order to remove processing oil, rust preventive oil, quenching oil, etc. (hereinafter referred to as heavy oil) from machine parts and products, conventionally, R-113 (CFC), trichlorethane, etc. The cleaning solvent that had been washed with the above solvent and contained impurities such as heavy oil was distilled and reused. R-11
Solvents containing chlorine such as 3, trichloroethane and the like are flame-retardant and have a low boiling point, so that distillation is very easy. Therefore, it was widely used.
【０００３】[0003]
【発明が解決しようとする課題】しかし、Ｒ−１１３
（フロン）、トリクロル・エタンなどの塩素を含んだ溶
剤は、環境破壊の原因になることが明確になったので、
今後、生産、使用ともに禁止されることが決まった。そ
こで、塩素系溶剤の代替品として石油系溶剤を使用する
ことが考えられる。しかし、石油系溶剤は、例えば、工
業用ガソリン５号で初留点が１５０ Ｃ以上、終留点が
２１０ Ｃ以下と高く、蒸留が困難である。そのうえ、
発火点も引火点も低いので、爆発の危険性があるため、
歴史が古く低価格であるにもかかわらず、あまり使用さ
れていなかった。また、蒸留回収装置は、重質油などの
不純物が含まれている洗浄溶剤を蒸発槽内で加熱気化し
た後、冷却し液化し、回収するものである。蒸留作業中
は、上記蒸発槽は、不純物を含んだ洗浄溶剤（液体）と
気化した溶剤ガスで満たされている。そして、蒸留が進
むに従って、洗浄溶剤中の不純物濃度が上昇すると、溶
剤の沸点は高くなるので蒸留しにくくなり、回収溶剤量
は、減少する（図５）。However, R-113
Since it has become clear that solvents containing chlorine such as (CFC) and trichlorethane will cause environmental damage,
It has been decided that both production and use will be banned in the future. Therefore, it is conceivable to use a petroleum solvent as a substitute for the chlorine solvent. However, petroleum-based solvents, for example, industrial gasoline No. 5 has a high initial boiling point of 150 C or higher and a final boiling point of 210 C or lower, which makes distillation difficult. Besides,
Since the ignition point and flash point are low, there is a danger of explosion,
Despite its old history and low price, it was rarely used. Further, the distillation recovery device is a device for recovering the cleaning solvent, which contains impurities such as heavy oil, by heating and vaporizing the cleaning solvent in the evaporation tank, then cooling and liquefying it. During the distillation operation, the evaporation tank is filled with the cleaning solvent (liquid) containing impurities and the vaporized solvent gas. Then, as the concentration of impurities in the cleaning solvent increases as the distillation proceeds, the boiling point of the solvent increases, making distillation difficult and reducing the amount of recovered solvent (FIG. 5).
【０００４】そこで、不純物濃度が上昇してきたら、蒸
留作業を止めて、蒸発槽を清掃しなければならない。そ
して、この清掃時期が適当でないと溶剤の回収量を維持
することが難しい。しかし、従来は、不純物濃度を検出
する手段がなかったので、回収溶剤量が減少してきてか
ら、蒸留作業を止めて、蒸発槽を清掃し、蒸留を再開し
ていた。また、これらの作業がすべて自動的に行われて
いなかったので、連続処理を行う洗浄システムに組み込
むことができなかった。そこで、本発明の目的は、環境
破壊の原因にならない溶剤を、効率よく、かつ、安全
に、自動的に蒸留回収し、また、連続自動洗浄システム
に組み込むことができる溶剤蒸留回収装置を得ることで
ある。Therefore, when the impurity concentration rises, it is necessary to stop the distillation work and clean the evaporation tank. If the cleaning time is not appropriate, it is difficult to maintain the recovery amount of the solvent. However, conventionally, since there was no means for detecting the impurity concentration, the distillation operation was stopped, the evaporation tank was cleaned, and the distillation was restarted after the amount of recovered solvent decreased. Moreover, since all of these operations were not performed automatically, they could not be incorporated into a cleaning system that performs continuous processing. Therefore, an object of the present invention is to obtain a solvent distillation recovery apparatus that can efficiently and safely and automatically recover a solvent that does not cause environmental damage and that can be incorporated into a continuous automatic cleaning system. Is.
【０００５】[0005]
【課題を解決するための手段】第１の発明は、溶剤を減
圧下で蒸発気化させ、気化した溶剤ガスを凝縮し、回収
する溶剤蒸留回収装置であり、溶剤を加熱、気化させる
蒸発槽内の溶剤中の不純物濃度センサーで不純物濃度を
測定し、その測定値をコントローラに入力し、上記不純
物濃度が、設定値を超えたときに、蒸留を停止し、蒸発
槽内の溶剤を排出し、排出後、蒸留を再開することを自
動的に行うようにしたことを特徴とする。第２の発明
は、第１の発明の不純物濃度センサーが、温度センサー
であることを特徴とする。第３の発明は、第１の発明の
不純物濃度センサーが、圧力センサーであることを特徴
とする。A first aspect of the present invention is a solvent distillation recovery apparatus for evaporating and evaporating a solvent under reduced pressure, condensing and recovering the evaporated solvent gas in an evaporation tank for heating and evaporating the solvent. Measure the impurity concentration with the impurity concentration sensor in the solvent, input the measured value to the controller, when the impurity concentration exceeds the set value, stop the distillation, discharge the solvent in the evaporation tank, It is characterized in that the distillation is automatically restarted after the discharge. A second invention is characterized in that the impurity concentration sensor of the first invention is a temperature sensor. A third invention is characterized in that the impurity concentration sensor of the first invention is a pressure sensor.
【０００６】[0006]
【作用】機械部品の洗浄に用いた石油系溶剤を蒸留する
場合、石油系溶剤は沸点が高く蒸留しにくいうえ、発火
点も引火点も低いので、蒸発気化したガスが洩れ出ない
ように、密閉系での減圧蒸留法を採用する。第１の発明
は、使用済みの溶剤を溶剤蒸留回収装置に導き、蒸発槽
内で加熱気化した後、凝縮器にて冷却液化し、回収す
る。その際、蒸発槽内の溶剤中の不純物濃度が上昇する
と、溶剤の沸点が高くなるため、蒸留回収しにくくな
り、回収溶剤量が減少する。回収溶剤量と不純物濃度の
関係は、図５に示すようになっている。そこで、維持し
たい溶剤の蒸留回収量を確保するための、重質油濃度を
設定値とし、蒸留中、不純物濃度を測定し、上記設定値
を超えた場合、一度、蒸留を停止する。そして、蒸発槽
内の不純物濃度が高くなった溶剤を排出し、溶剤排出
後、蒸留を再開する。不純物濃度センサーから測定値の
信号をコントローラに入力し、不純物濃度が設定値を超
えた場合に、蒸留停止、溶剤排出後の蒸留再開を自動的
におこなうようにする。[Function] When distilling the petroleum solvent used for cleaning the mechanical parts, the petroleum solvent has a high boiling point and is difficult to distill, and since the ignition point and the flash point are low, the vaporized gas does not leak out. The vacuum distillation method in a closed system is adopted. In the first invention, a used solvent is introduced into a solvent distillation recovery apparatus, heated and vaporized in an evaporation tank, and then cooled and liquefied by a condenser to be recovered. At that time, if the concentration of impurities in the solvent in the evaporation tank rises, the boiling point of the solvent increases, which makes it difficult to recover by distillation, and the amount of recovered solvent decreases. The relationship between the amount of recovered solvent and the concentration of impurities is as shown in FIG. Therefore, the heavy oil concentration is set as a set value in order to secure the amount of the solvent to be distilled and maintained, and the impurity concentration is measured during the distillation. When the set value is exceeded, the distillation is once stopped. Then, the solvent having a high impurity concentration in the evaporation tank is discharged, and after the solvent is discharged, the distillation is restarted. The signal of the measured value is input to the controller from the impurity concentration sensor, and when the impurity concentration exceeds the set value, the distillation is automatically stopped and the distillation is restarted after the solvent is discharged.
【０００７】第２の発明は、第１の発明の不純物濃度セ
ンサーとして、温度センサーを用いるものである。溶剤
の蒸留中、蒸発槽内の溶剤中の不純物濃度が上昇する
と、溶剤の沸点が高くなるため、回収溶剤量は減少し、
また、溶剤温度が高くなる。そして、溶剤中の重質油濃
度と溶剤温度には、図５のように相関があるので、溶剤
温度を測定することで、その温度に対応する溶剤中の不
純物濃度を検出することができる。そこで、維持したい
溶剤の蒸留回収量を確保するための、不純物濃度に対応
した溶剤温度を設定値とする。そして、コントローラに
入力した温度センサーからの信号により、測定値が上記
設定値を超えた場合に、一度、蒸留を停止し、溶剤を排
出後、蒸留を再開する。A second invention uses a temperature sensor as the impurity concentration sensor of the first invention. During the distillation of the solvent, if the concentration of impurities in the solvent in the evaporation tank rises, the boiling point of the solvent rises, the amount of recovered solvent decreases,
Also, the solvent temperature becomes high. Since the heavy oil concentration in the solvent and the solvent temperature have a correlation as shown in FIG. 5, it is possible to detect the impurity concentration in the solvent corresponding to the temperature by measuring the solvent temperature. Therefore, the solvent temperature corresponding to the impurity concentration is set as the set value in order to secure the distillation recovery amount of the solvent to be maintained. When the measured value exceeds the set value by the signal from the temperature sensor input to the controller, the distillation is once stopped, the solvent is discharged, and the distillation is restarted.
【０００８】第３の発明は、第１の発明の不純物濃度セ
ンサーとして、圧力センサーを用いるものである。溶剤
中の不純物濃度と槽内圧力には、図５のように相関があ
るので、蒸発槽内圧力を測定していれば、溶剤中の不純
物濃度が上昇して、溶剤回収量が減少する状態を予測す
ることができる。蒸留中、溶剤中の不純物濃度が上昇し
て、蒸発しにくくなると、蒸発槽内の溶剤ガス圧力が低
下する。そこで、維持したい溶剤の蒸発回収量を確保す
るための、不純物濃度に対応した槽内圧力を設定値とす
る。この場合も、圧力センサーから測定圧力の信号をコ
ントローラに入力し、圧力が、設定値より低下した場合
に、蒸留停止、溶剤排出、蒸留再開を自動的におこなう
ようにする。The third invention uses a pressure sensor as the impurity concentration sensor of the first invention. Since the concentration of impurities in the solvent and the pressure in the tank have a correlation as shown in FIG. 5, if the pressure in the evaporation tank is measured, the concentration of impurities in the solvent increases and the amount of solvent recovery decreases. Can be predicted. When the concentration of impurities in the solvent rises during distillation and it becomes difficult to evaporate, the pressure of the solvent gas in the evaporation tank decreases. Therefore, the tank internal pressure corresponding to the impurity concentration is set as the set value in order to secure the evaporation recovery amount of the solvent to be maintained. In this case as well, a signal of the measured pressure is input from the pressure sensor to the controller, and when the pressure falls below the set value, distillation stop, solvent discharge, and distillation restart are automatically performed.
【０００９】[0009]
【実施例】図１は、この発明の溶剤蒸留回収装置を用い
た、部品の洗浄→溶剤の蒸留回収を連続的に繰り返す洗
浄システムの実施例を示し、そのフローを図２に示す。
図１において、洗浄槽１で石油系溶剤を用いて機械部品
の洗浄を行う。洗浄溶剤には、不純物として、機械油な
どの重質油が、含まれている。洗浄槽１内の溶剤は蒸発
槽２に導かれる。蒸発槽２内は、下流に設置されたポン
プ５によって減圧されているので、それによって、溶剤
は、蒸発槽２に導かれることになる。そして、蒸気加熱
器１２により加熱されて、蒸発気化する。蒸発槽２を出
た溶剤ガスは、予熱器３を通過して、供給溶剤と熱交換
した後、凝縮器４でさらに冷却され、液化して洗浄槽１
に回収される。蒸発槽２には、下部に溜った溶剤温度を
測定するための温度センサー６と、溶剤ガス圧力を測定
するための 圧力センサー７が設置されている。なお、
図１中、１６は呼び水タンク、１７は液面調整器、１８
は減圧弁である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a cleaning system using the solvent distillation recovery apparatus of the present invention, in which the cleaning of the parts and the distillation recovery of the solvent are continuously repeated, and its flow is shown in FIG.
In FIG. 1, a cleaning tank 1 is used to clean mechanical parts using a petroleum solvent. The cleaning solvent contains heavy oil such as machine oil as an impurity. The solvent in the cleaning tank 1 is introduced into the evaporation tank 2. The inside of the evaporation tank 2 is decompressed by the pump 5 installed downstream, so that the solvent is guided to the evaporation tank 2. Then, it is heated by the steam heater 12 and vaporized. The solvent gas that has left the evaporation tank 2 passes through a preheater 3 to exchange heat with the supplied solvent, and then is further cooled in the condenser 4 and liquefied to form the cleaning tank 1.
Will be collected. The evaporation tank 2 is provided with a temperature sensor 6 for measuring the temperature of the solvent accumulated in the lower portion and a pressure sensor 7 for measuring the solvent gas pressure. In addition,
In FIG. 1, 16 is a priming tank, 17 is a liquid level adjuster, 18
Is a pressure reducing valve.
【００１０】図２に示す、システムのフローの中で、こ
の発明の主な部分は、蒸留中に作動するＡ→Ｂのサブプ
ログラム（図３）である。図３のフローに従って、作用
を説明する。溶剤回収量が維持したい値を下回らないよ
うにするために、ある一定の不純物（重質油）濃度に対
応する温度Ｔ1 、圧力Ｐ1 をあらかじめ設定しておく。
蒸留中の蒸発槽２内の温度Ｔと圧力Ｐを温度センサー６
と、圧力センサー７で、常に測定している。そして、も
し、溶剤温度Ｔが設定温度Ｔ1 を超えたとき、または、
圧力Ｐが設定圧力Ｐ1 を下回ったときには、ステップ３
に進み、それ以外の場合にはＢへ戻り、蒸留を続ける。In the system flow shown in FIG. 2, the main part of the invention is the A → B subprogram (FIG. 3) which operates during distillation. The operation will be described according to the flow of FIG. In order to prevent the solvent recovery amount from falling below the desired value, the temperature T 1 and pressure P 1 corresponding to a certain concentration of impurities (heavy oil) are set in advance.
The temperature T and the pressure P in the evaporation tank 2 during distillation are measured by the temperature sensor
And the pressure sensor 7 constantly measures. If the solvent temperature T exceeds the set temperature T 1 , or
When the pressure P falls below the set pressure P 1 , step 3
Otherwise, return to B and continue distillation.
【００１１】ステップ３では、まず、モーターバルブ８
を閉め、溶剤の供給を止める。溶剤の供給を止めた状態
で、５分間程度、蒸留を続ける（ステップ４、パージと
いう）。次に、ソレノイドバルブ１０を閉めて、加熱用
蒸気の供給を止め、ポンプ５を止めた後、ソレノイドバ
ルブ１１を開け、真空抜きをおこなう（ステップ５、
６）。蒸発槽２内が、常圧になってから、モーターバル
ブ９を開けて、溶剤排出口１３より、槽内の溶剤を排出
する（ステップ７）。溶剤の排出後に、モーターバルブ
９を閉め、ソレノイドバルブ１１を閉め蒸発槽２を密閉
系にする（ステップ８）。次に、ソレノイドバルブ１
０、モーターバルブ８を開け、ポンプ５を始動する（ス
テップ９）ことによって、蒸留を再開する。In step 3, first, the motor valve 8
Close and shut off the solvent supply. Distillation is continued for about 5 minutes with the supply of solvent stopped (step 4, referred to as purging). Next, the solenoid valve 10 is closed, the supply of heating steam is stopped, the pump 5 is stopped, the solenoid valve 11 is opened, and the vacuum is released (step 5,
6). After the inside of the evaporation tank 2 becomes normal pressure, the motor valve 9 is opened and the solvent in the tank is discharged from the solvent discharge port 13 (step 7). After discharging the solvent, the motor valve 9 is closed, the solenoid valve 11 is closed, and the evaporation tank 2 is closed (step 8). Next, solenoid valve 1
0, the motor valve 8 is opened, and the pump 5 is started (step 9) to restart the distillation.
【００１２】図４は、上記サブプログラム中のステップ
３〜９の、モーターバルブ、ソレノイドバルブの開閉
や、ポンプの始動をコントローラ１４を用いて、自動的
に行うための、回路図である。このコントローラ１４
は、温度センサー６や、圧力センサー７から入力された
測定値によって、各バルブの開閉や、ポンプの停止、始
動を行うような命令をリレー１５に出力するものであ
る。このように、バルブの開閉などを自動的に行うこと
ができるので、この発明の溶剤蒸留回収装置は、連続的
な自動洗浄システムに組み込むことができる。なお、本
実施例では、溶剤中の不純物（重質油）濃度を検知する
ために、温度センサー６と圧力センサー７とを設けて、
二重の監視をしたが、もちろん、どちらか一方でもかま
わない。FIG. 4 is a circuit diagram for automatically opening and closing the motor valve and solenoid valve and starting the pump in steps 3 to 9 in the subprogram using the controller 14. This controller 14
The relay outputs a command to the relay 15 to open and close each valve and stop and start the pump according to the measurement values input from the temperature sensor 6 and the pressure sensor 7. As described above, since the opening and closing of the valve can be automatically performed, the solvent distillation recovery apparatus of the present invention can be incorporated in a continuous automatic cleaning system. In this embodiment, a temperature sensor 6 and a pressure sensor 7 are provided to detect the concentration of impurities (heavy oil) in the solvent,
I did double monitoring, but of course I don't care which one or the other.
【００１３】[0013]
【効果】この発明によれば、環境破壊の原因にならない
溶剤を、効率よく、かつ、安全に、自動的に蒸留回収す
ることができる。また、連続処理を行う、洗浄システム
に組み込むことができる。According to the present invention, a solvent that does not cause environmental damage can be automatically and efficiently recovered by distillation. It can also be incorporated into a cleaning system that performs continuous processing.
【図１】本発明を用いたシステムを表す図である。FIG. 1 is a diagram illustrating a system using the present invention.
【図２】本実施例のシステムのフローである。FIG. 2 is a flow of the system of this embodiment.
【図３】本装置の作用に関するフローである。FIG. 3 is a flow chart relating to the operation of the present apparatus.
【図４】本装置を自動制御するための回路図である。FIG. 4 is a circuit diagram for automatically controlling the device.
【図５】蒸留量、温度、圧力と、不純物濃度の関係を表
すグラフである。FIG. 5 is a graph showing the relationship between the distillation amount, temperature, pressure, and impurity concentration.
２ 蒸発槽 ４ 凝縮器 ５ ポンプ ６ 温度センサー ７ 圧力センサー １３ 溶剤排出口 １４ コントローラ 2 Evaporation tank 4 Condenser 5 Pump 6 Temperature sensor 7 Pressure sensor 13 Solvent outlet 14 Controller
Claims (3)
槽内の溶剤中の不純物濃度を検出する不純物濃度センサ
ーと、溶剤排出口とを備えた蒸発槽と、上記蒸発槽を減
圧するための吸引ポンプと、気化した溶剤ガスを液化す
る凝縮器と、上記不純物濃度センサーからの信号入力に
よって、蒸留の停止、溶剤の排出、及び、再開を自動制
御するコントローラとを備えた溶剤蒸留回収装置。1. A heater for evaporating and evaporating a solvent,
An impurity concentration sensor for detecting the concentration of impurities in the solvent in the tank, an evaporation tank having a solvent outlet, a suction pump for depressurizing the evaporation tank, a condenser for liquefying the vaporized solvent gas, A solvent distillation recovery apparatus comprising a controller for automatically controlling distillation stop, solvent discharge, and restart by signal input from the impurity concentration sensor.
が、温度センサーである溶剤蒸留回収装置。2. A solvent distillation recovery apparatus in which the impurity concentration sensor according to claim 1 is a temperature sensor.
が、圧力センサーである溶剤蒸留回収装置。3. A solvent distillation recovery apparatus in which the impurity concentration sensor according to claim 2 is a pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35548992A JPH06182104A (en) | 1992-12-18 | 1992-12-18 | Distilling and recovering equipment for solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35548992A JPH06182104A (en) | 1992-12-18 | 1992-12-18 | Distilling and recovering equipment for solvent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06182104A true JPH06182104A (en) | 1994-07-05 |
Family
ID=18444246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35548992A Pending JPH06182104A (en) | 1992-12-18 | 1992-12-18 | Distilling and recovering equipment for solvent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06182104A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007229555A (en) * | 2006-02-28 | 2007-09-13 | Okawara Mfg Co Ltd | Operation method of high speed revolving type evaporation apparatus |
| CN105194893A (en) * | 2015-08-26 | 2015-12-30 | 天津君歌分子蒸馏设备有限公司 | Heat energy recycling structure of molecular distillation system |
| CN107754358A (en) * | 2017-11-28 | 2018-03-06 | 苏州浩长空环保科技有限公司 | High-concentration waste liquid evaporator |
| CN107823898A (en) * | 2017-11-28 | 2018-03-23 | 苏州浩长空环保科技有限公司 | High-concentration waste liquid processing evaporation reactor and its method for treating waste liquid |
| CN107930163A (en) * | 2017-11-28 | 2018-04-20 | 苏州浩长空环保科技有限公司 | The method for treating waste liquid of high-concentration waste liquid evaporator |
| CN107970626A (en) * | 2017-11-28 | 2018-05-01 | 苏州浩长空环保科技有限公司 | High-concentration waste liquid evaporator and its method for treating waste liquid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5312775A (en) * | 1976-07-23 | 1978-02-04 | Ebara Corp | Vaporizing and concentrating apparatus |
| JPS5335677A (en) * | 1976-09-14 | 1978-04-03 | Hitachi Denshi Shisutemu Saabi | Control circuit for distillation apparatuses |
-
1992
- 1992-12-18 JP JP35548992A patent/JPH06182104A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5312775A (en) * | 1976-07-23 | 1978-02-04 | Ebara Corp | Vaporizing and concentrating apparatus |
| JPS5335677A (en) * | 1976-09-14 | 1978-04-03 | Hitachi Denshi Shisutemu Saabi | Control circuit for distillation apparatuses |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007229555A (en) * | 2006-02-28 | 2007-09-13 | Okawara Mfg Co Ltd | Operation method of high speed revolving type evaporation apparatus |
| CN105194893A (en) * | 2015-08-26 | 2015-12-30 | 天津君歌分子蒸馏设备有限公司 | Heat energy recycling structure of molecular distillation system |
| CN107754358A (en) * | 2017-11-28 | 2018-03-06 | 苏州浩长空环保科技有限公司 | High-concentration waste liquid evaporator |
| CN107823898A (en) * | 2017-11-28 | 2018-03-23 | 苏州浩长空环保科技有限公司 | High-concentration waste liquid processing evaporation reactor and its method for treating waste liquid |
| CN107930163A (en) * | 2017-11-28 | 2018-04-20 | 苏州浩长空环保科技有限公司 | The method for treating waste liquid of high-concentration waste liquid evaporator |
| CN107970626A (en) * | 2017-11-28 | 2018-05-01 | 苏州浩长空环保科技有限公司 | High-concentration waste liquid evaporator and its method for treating waste liquid |
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