JPS63177898A - Apparatus for recovering solvent in distillation residue - Google Patents
Apparatus for recovering solvent in distillation residueInfo
- Publication number
- JPS63177898A JPS63177898A JP959687A JP959687A JPS63177898A JP S63177898 A JPS63177898 A JP S63177898A JP 959687 A JP959687 A JP 959687A JP 959687 A JP959687 A JP 959687A JP S63177898 A JPS63177898 A JP S63177898A
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- evaporation chamber
- residue
- air supply
- heating
- 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 description 25
- 238000004821 distillation Methods 0.000 title claims description 10
- 238000001704 evaporation Methods 0.000 claims description 14
- 230000008020 evaporation Effects 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 description 7
- 238000001035 drying Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical group CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、ドライクリーナで用いる溶剤を蒸溜再生する
際に生じる蒸溜残渣から更に溶剤を回収する装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an apparatus for further recovering a solvent from distillation residue generated when a solvent used in a dry cleaner is recycled by distillation.
（ロ）従来の技術
この種の溶剤回収装置は、蒸溜器をクーラーを介して水
分離器に接続し、この蒸溜器Ｃ蒸溜室）内の残渣から溶
剤を回収する場合は蒸溜器内に直接スチームを供給して
溶剤を加熱して蒸発しゃすくし、また実開昭５７−１２
１２８８号公報等では、乾燥行程或いは脱臭行程で用い
るプロワ−を蒸溜器へ常時送り込んで残渣からの溶剤ガ
スの発生を促している。(B) Conventional technology This type of solvent recovery device connects a distiller to a water separator via a cooler, and when recovering the solvent from the residue in the distiller C (distillation chamber), it directly connects the distiller to the water separator. Supply steam to heat the solvent and evaporate it, and also
In Japanese Patent No. 1288 and the like, a blower used in the drying process or the deodorizing process is constantly sent to the distiller to promote the generation of solvent gas from the residue.
しかし、これらの従来例はスチームＪＰ窒気の供給量が
過剰であるために、蒸溜器内が飽和しており、供給初期
での回収率は高いが、総合的には満足できる回収率が得
られなかった。また、残渣中のゴミ等をクーラーや水分
離器にまで送り込むことがあり、配管につまり等を生じ
ることがあった。However, in these conventional examples, the inside of the distiller is saturated due to the excessive supply of Steam JP nitrogen, and although the recovery rate is high at the initial stage of supply, the overall recovery rate is not satisfactory. I couldn't. In addition, the dust in the residue may be sent to the cooler or water separator, which may cause clogging of the pipes.
ヒう 発明が解決しようとする問題点
本発明は、回収率の向上を図ると共に、ゴミ等の送出を
極力抑えるものである。Problems to be Solved by the Invention The present invention is intended to improve the collection rate and to suppress the sending out of garbage and the like as much as possible.
に）問題点を解決するための手段
本発明による解決手段は、水分離器にクーラーを介して
接続された蒸発室と、この蒸発室内の蒸溜残渣を溶剤の
沸点近傍にまで加熱する加熱手段と、上記蒸発室内に断
続的に送気する送気手段とを備えた構成である。B) Means for Solving the Problem The solution according to the present invention includes an evaporation chamber connected to a water separator via a cooler, and a heating means for heating the distillation residue in the evaporation chamber to near the boiling point of the solvent. and an air supply means for intermittently supplying air into the evaporation chamber.
（ホ）作 用
蒸溜残渣を加熱手段によって所謂保温状態に維持してい
るところへ、送気すると、溶剤ガスが導出されると共に
室内温度が下り、飽和が解かれる。そして、送気をしゃ
断すると、温度が上り蒸発を促し、飽和していく。以下
、この動作を例えば１０〜１５回繰返すと、従来の回収
率が約８０％であるのに対して約９２％まで向上する。(E) Function When air is supplied to a place where the distillation residue is maintained in a so-called heat-retaining state by a heating means, the solvent gas is led out, the room temperature decreases, and the saturation is released. Then, when the air supply is cut off, the temperature rises, promoting evaporation and saturation. When this operation is repeated, for example, 10 to 15 times, the recovery rate improves from about 80% in the past to about 92%.
（へ）実施例
以下図面に基づいて説明すると、（１）は溶剤タンク（
２）を下部に配設し北ドライクリーナ本体であり、内部
には回転ドラムを内装した洗濯兼脱液兼乾燥室（図示せ
ず）を配設している。（３）は蒸発室（４１の下部に伝
熱的に加熱室（５）を艷設して成る蒸溜器である。(to) Examples To explain based on the drawings below, (1) is a solvent tank (
2) is located at the bottom and is the main body of the north dry cleaner, and inside is a washing/deliquid/drying chamber (not shown) equipped with a rotating drum. (3) is a distiller comprising a heating chamber (5) installed at the bottom of an evaporation chamber (41) for heat transfer.
蒸発室（４）は、上部をクーラー（６）に接続すると共
にフィルター（７）に排液弁（８）を介して接続してい
る。The evaporation chamber (4) is connected at its upper part to a cooler (6) and to a filter (7) via a drain valve (8).
まな、蒸発室（４）には残渣取出口（９）が設けられる
と共に、温度センサーαＯが設けである。更に、蒸発室
（４）には送気手段としてのコンプレッサーαＤが送気
弁（１２１を介して接続しである。Additionally, the evaporation chamber (4) is provided with a residue outlet (9) and a temperature sensor αO. Furthermore, a compressor αD as an air supply means is connected to the evaporation chamber (4) via an air supply valve (121).
加熱室（５１には加熱手段としてのスチーム供給源（１
３が供給弁Ｉを介して接続しである。α５はスチームト
ラップである。The heating chamber (51 is equipped with a steam supply source (1) as a heating means)
3 is connected via supply valve I. α5 is a steam trap.
クーラー（６）は水分離器（１６１を介して溶剤タンク
（２）゛に接続しである。The cooler (6) is connected to the solvent tank (2) via a water separator (161).
かくして、洗浄から乾燥Ｃ脱臭）までの行程に於いては
、溶剤を要する場合はタンク（２）からフィルター（７
）を介して洗ｆｍ室に供給され、洗浄後の溶剤、脱液後
の溶剤は、蒸溜器（３）に排液弁（８）により導出され
る。In this way, in the process from washing to drying C deodorization), if a solvent is required, it is necessary to remove the solvent from the tank (2) to the filter (7).
), and the solvent after cleaning and the solvent after deliquification are led out to the distiller (3) by a drain valve (8).
蒸溜作業では、加熱室（５）にスチームを供給して蒸発
室（４）内を加熱する。溶剤がトリクロルエタンＣ沸点
７４°Ｃ）の場合は１３０℃程度で加熱する。In the distillation operation, steam is supplied to the heating chamber (5) to heat the inside of the evaporation chamber (4). If the solvent is trichloroethane (boiling point 74°C), heat at about 130°C.
蒸発溶剤はクーラー（６）に導出され、凝縮液化され、
水分離されてタンク（２）に戻る。クーラー（６）内の
温度はセンサーによって測定されており、センサーの温
度信号を受は九マイクロコンピュータは、クーラー（６
）内の冷却水温度が一度上って恒常化し、次に下り定時
に蒸発溶剤がほとんど無くなったと判断して蒸溜作業を
終了させる。即ち、供給弁Ｉを閉じる。The evaporated solvent is led out to a cooler (6), condensed and liquefied,
Water is separated and returned to tank (2). The temperature inside the cooler (6) is measured by a sensor, and a nine-microcomputer receives the temperature signal from the sensor.
The temperature of the cooling water in ) rises once, becomes constant, and then falls, and at the scheduled time, it is judged that the evaporated solvent is almost gone, and the distillation operation is ended. That is, the supply valve I is closed.
引続き残渣中の溶剤の回収作業が実行されるが、これは
蒸発室（４）内の温度がまだ溶剤の沸点近傍にある頃に
送気弁α２１ｆ、開いてコンプレッサー（１）１によっ
て送気することで開始する。この送気は例えば４５秒毎
に行なわれて室内を低温化して終り、次に供給弁（１４
１を例えば２秒間間いてスチームによって持続性良く加
熱し、残渣の温度を沸点近傍まで上げていく。以下送気
と加熱を残渣量に応じて例えば１０〜１５回断続的に繰
返すが、加熱時はその前の送気によって室内の飽和状態
が破壊されているので、溶剤ガスの発生が促進される。Subsequently, the solvent in the residue is recovered, but when the temperature in the evaporation chamber (4) is still near the boiling point of the solvent, the air supply valve α21f is opened and air is supplied by the compressor (1) 1. Start with that. This air supply is carried out, for example, every 45 seconds to cool the room, and then the supply valve (14
1 is heated sustainably with steam for 2 seconds, for example, to raise the temperature of the residue to near the boiling point. Air supply and heating are then repeated intermittently, for example, 10 to 15 times depending on the amount of residue, but during heating, the previous air supply has destroyed the saturated state in the room, so the generation of solvent gas is promoted. .
送気と加熱の断続タイミングは、温度センサー帥によっ
て制御することもできる。即ち、室内温度が沸点近傍に
成ると、供給弁Ｉを閉じて送気弁ａｚを開き、このため
に室内温度が例えば４５℃に成ると、供給弁α４を開い
て送気弁ａｚを閉じるのである。そして、以下これを繰
返す。The intermittent timing of air supply and heating can also be controlled by a temperature sensor. That is, when the indoor temperature approaches the boiling point, the supply valve I is closed and the air supply valve az is opened, and when the indoor temperature reaches, for example, 45°C, the supply valve α4 is opened and the air supply valve az is closed. be. And repeat this below.
そして、本実施例の弁σ２１ａ４１の開閉制御はマイク
ロコンピュータのプログラムに基づいて実行されるので
ある。尚、残渣中の溶剤回収作業は手動操作によって開
始するようにしても良い。The opening/closing control of the valve σ21a41 in this embodiment is executed based on a microcomputer program. Incidentally, the work of recovering the solvent in the residue may be started by manual operation.
（ト） 発明の効果
本発明に依れば、残渣中の溶剤の回収率を向上できると
共に、ゴミ尋をまき散らすことが少くなり、極めて安全
で且つ効率の良い回収装置を提供できるものである。(G) Effects of the Invention According to the present invention, it is possible to improve the recovery rate of the solvent in the residue, and to reduce the amount of dust being scattered, thereby providing an extremely safe and efficient recovery device.
図面は本発明による回収装置の一部をＷＲ面せる配管機
構図である。
（３）・・・蒸溜器、 （４）・・・蒸発室、 （５）
・・・加熱室、（６）・・・クーラー、（ｉｌｌ・・・
コンプレッサー（送気手段）、（１３１・・・スチーム
供給源（加熱手段）、 任ｅ・・・水分離器。The drawing is a piping mechanism diagram showing a part of the recovery device according to the present invention facing WR. (3)... distiller, (4)... evaporation chamber, (5)
...Heating chamber, (6)...Cooler, (ill...
Compressor (air supply means), (131... steam supply source (heating means), optional e... water separator.
Claims (1)
、この蒸発室内の蒸溜残渣を溶剤の沸点近傍にまで加熱
する加熱手段と、上記蒸発室内に断続的に送気する送気
手段とを備えた蒸溜残渣中の溶剤回収装置。(1) An evaporation chamber connected to the water separator via a cooler, a heating means for heating the distillation residue in the evaporation chamber to near the boiling point of the solvent, and an air supply means for intermittently supplying air into the evaporation chamber. An apparatus for recovering solvents in distillation residues.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP959687A JPS63177898A (en) | 1987-01-19 | 1987-01-19 | Apparatus for recovering solvent in distillation residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP959687A JPS63177898A (en) | 1987-01-19 | 1987-01-19 | Apparatus for recovering solvent in distillation residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63177898A true JPS63177898A (en) | 1988-07-22 |
Family
ID=11724704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP959687A Pending JPS63177898A (en) | 1987-01-19 | 1987-01-19 | Apparatus for recovering solvent in distillation residue |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63177898A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05305198A (en) * | 1992-05-07 | 1993-11-19 | Fuji Car Mfg Co Ltd | Solvent recovering method from distillation sludge |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5745899A (en) * | 1980-09-03 | 1982-03-16 | Mitsubishi Heavy Ind Ltd | Method of treating sludge in solvent tank of dry cleaning machine |
-
1987
- 1987-01-19 JP JP959687A patent/JPS63177898A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5745899A (en) * | 1980-09-03 | 1982-03-16 | Mitsubishi Heavy Ind Ltd | Method of treating sludge in solvent tank of dry cleaning machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05305198A (en) * | 1992-05-07 | 1993-11-19 | Fuji Car Mfg Co Ltd | Solvent recovering method from distillation sludge |
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