JP2523686Y2 - Water-soluble quenching liquid separation and recovery device - Google Patents
Water-soluble quenching liquid separation and recovery deviceInfo
- Publication number
- JP2523686Y2 JP2523686Y2 JP1989125937U JP12593789U JP2523686Y2 JP 2523686 Y2 JP2523686 Y2 JP 2523686Y2 JP 1989125937 U JP1989125937 U JP 1989125937U JP 12593789 U JP12593789 U JP 12593789U JP 2523686 Y2 JP2523686 Y2 JP 2523686Y2
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- Prior art keywords
- water
- liquid
- tank
- quenching
- separation
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Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、水溶性焼入液を分離槽で水とグリコール等
の非水液に分離・回収して両者を再利用する水溶性焼入
液の分離回収装置に関する。[Detailed description of the invention] [Industrial application field] The present invention separates and collects a water-soluble quenching liquid into water and a non-aqueous liquid such as glycol in a separation tank, and reuses both of them. The present invention relates to a liquid separation and recovery device.
［従来の技術］ 航空機用アルミ合金鋳物等のワークを歪みのない高品
質焼入れする装置として、水とグリコール等非水液とを
混合した水溶性焼入液中で焼入処理する焼入装置が公知
（例えば、特開昭64−36721号公報）である。[Prior art] As a device for hardening a workpiece such as an aluminum alloy casting for an aircraft without distortion, a quenching device for quenching in a water-soluble quenching solution in which water and a non-aqueous liquid such as glycol are mixed. It is known (for example, JP-A-64-36721).
かかる焼入装置の構成を第２図に示す。 FIG. 2 shows the configuration of such a quenching apparatus.
第２図において、１はワークＷを例えば500℃前後の
高温に加熱する加熱炉である。ワークＷは、扉２の開放
状態において図示しない搬送手段で出入れされる。５
は、水溶性焼入液すなわち水とグリコール等の非水液と
を混合した焼入液を収容する焼入槽で、焼入液は図示し
ない温度調整手段によって所定温度（例えば、35℃）に
保持される。また、８は焼入後のワークＷを清浄する清
浄槽である。清浄液は水である。第２図に示す浸漬方式
の他にスプレー方式もあるが本質は変らない。In FIG. 2, reference numeral 1 denotes a heating furnace for heating the work W to a high temperature of, for example, about 500 ° C. The work W is moved in and out of the door 2 by a transporting means (not shown) in an open state. 5
Is a quenching tank containing a water-soluble quenching liquid, that is, a quenching liquid in which water and a non-aqueous liquid such as glycol are mixed. The quenching liquid is brought to a predetermined temperature (for example, 35 ° C.) by a temperature adjusting means (not shown). Will be retained. Reference numeral 8 denotes a cleaning tank for cleaning the quenched work W. The cleaning liquid is water. There is a spray method other than the immersion method shown in FIG. 2, but the essence does not change.
したがって、高温加熱されたワークＷは矢印X,Y方向
に搬送され、焼入槽５内で急冷され溶体化処理される。
引続き、焼入されたワークＷは清浄槽８で清浄され、そ
の後必要によって設けられた湯洗槽等へ搬送される。Therefore, the workpiece W heated at a high temperature is conveyed in the directions of the arrows X and Y, rapidly cooled in the quenching tank 5 and subjected to a solution treatment.
Subsequently, the quenched work W is cleaned in the cleaning tank 8, and then transferred to a hot water washing tank or the like provided as necessary.
ところで、清浄槽８には、ワークＷに付着して焼入槽
５から持出された焼入液が持込まれる。すると、所定の
清浄効果が得られないばかりか、焼入槽５内のグリコー
ル等が減少し焼入品質が劣悪化する。このため、グリコ
ール等を補給しなければならないが経済的負担が大きい
という問題がある。By the way, the quenching liquid adhered to the work W and taken out of the quenching tank 5 is carried into the cleaning tank 8. Then, not only the predetermined cleaning effect cannot be obtained, but also the amount of glycol and the like in the quenching tank 5 decreases, and the quenching quality deteriorates. For this reason, it is necessary to supply glycol and the like, but there is a problem that the economic burden is large.
また、清浄槽８からの排水にはグリコール等が混入し
ているので、排水処理設備が必要となり処理コストも高
くなる。さらに、後置湯洗槽等がなく清浄槽８から取出
したワークＷを中間製品とし、かつこの中間製品に塗装
を行なう場合には、清浄槽８で付着したグリコール等が
塗膜均一性等を阻害するという問題がある。Further, since glycol and the like are mixed in the wastewater from the cleaning tank 8, wastewater treatment equipment is required, and the treatment cost is increased. Further, in the case where the work W taken out of the cleaning tank 8 without a post-washing water washing tank or the like is used as an intermediate product, and when coating the intermediate product, glycol and the like adhered in the cleaning tank 8 reduce the uniformity of the coating film. There is a problem of inhibition.
ここに、本出願人は、グリコール等の非水液は、例え
ば80〜90℃の適温に加熱すると水と、グリコール等が分
離することに着目し、グリコール等非水液と水との再利
用を図るための分離回収装置を設けた焼入装置を提案
（特開昭64−36721号）している。Here, the applicant has noticed that non-aqueous liquids such as glycol are separated from water and glycol when heated to an appropriate temperature of, for example, 80 to 90 ° C. A quenching device provided with a separation and recovery device for achieving this is proposed (JP-A-64-36721).
この分離回収装置10は、第２図に示す通り、分離槽11
と加温手段21（パイプヒータ22,温度センサ23,コントロ
ーラ24,コントロールバルブ25,ドレントラップ26）と管
路31（非水液管32,流量調整弁33,水管34）とからなり、
清浄槽８内の液はポンプ８′，送給管35を介し分離槽11
内に送給される。As shown in FIG. 2, the separation and recovery device 10 includes a separation tank 11
And a heating means 21 (pipe heater 22, temperature sensor 23, controller 24, control valve 25, drain trap 26) and pipe line 31 (non-aqueous liquid pipe 32, flow control valve 33, water pipe 34).
The liquid in the cleaning tank 8 is supplied to the separation tank 11 via the pump 8 'and the feed pipe 35.
Sent inside.
したがって、清浄槽８から送給された液（稀薄焼入
液）は、分離槽11内においてスチーム等の熱源が流通す
るパイプヒータ22で適温に加温される。すると、それら
の比重差から上層の水と下層のグリコール等非水液に分
離・回収される。グリコール等は焼入槽５に戻され、水
は清浄槽８に戻され、それぞれに再利用される。Therefore, the liquid (dilute quenching liquid) sent from the cleaning tank 8 is heated to an appropriate temperature in the separation tank 11 by the pipe heater 22 through which a heat source such as steam flows. Then, from the difference in their specific gravities, they are separated and recovered into an upper layer of water and a lower layer of a non-aqueous liquid such as glycol. Glycol and the like are returned to the quenching tank 5, and water is returned to the cleaning tank 8 and reused for each.
因に、水溶性焼入液のグリコール等非水液の濃度は、
一般的に焼入槽５で20〜30％、清浄槽８で１〜５％であ
る。また、第２の清浄槽を設けて0.05〜0.5％とする場
合がある。By the way, the concentration of non-aqueous liquid such as glycol in the water-soluble quenching liquid is
Generally, it is 20 to 30% in the quenching tank 5 and 1 to 5% in the cleaning tank 8. In some cases, a second cleaning tank is provided to make the concentration 0.05 to 0.5%.
［考案が解決しようとする課題］ しかしながら、上記従来構造では、次のような問題点
がある。[Problem to be solved by the invention] However, the above-described conventional structure has the following problems.
（１）清浄槽８内の液をポンプ８′によって分離槽11へ
連続給送すると、分離槽11内で複雑な液流が生じ液温不
均一等により良好な分離作用が行われないことがある。
したがって、特に、清浄槽８内に戻される水には、グリ
コール等非水液が混入されているので、グリコール等の
完全回収ができずかつ所期の清浄効果も得られない。か
かる問題は分離槽11をいかに過大設備としても解決困難
である。(1) When the liquid in the cleaning tank 8 is continuously fed to the separation tank 11 by the pump 8 ', a complicated liquid flow occurs in the separation tank 11 and a good separation action is not performed due to uneven liquid temperature. is there.
Therefore, in particular, since the non-aqueous liquid such as glycol is mixed in the water returned into the cleaning tank 8, the glycol or the like cannot be completely recovered and the desired cleaning effect cannot be obtained. Such a problem is difficult to solve even if the separation tank 11 is oversized.
（２）一方、分離槽11への給送を断続的に行なうと、分
離槽11内での加温、その後の温度均一化および完全分離
までの工程が、経済的設備において概ね1.5〜２時間で
完了する。したがって、1.5〜２時間毎に液送給を行な
う、つまりバッチ方式とすれば、上記（１）の問題は解
決される。しかし、かかる工程時間中に焼入槽５内のグ
リコール等は徐々に減少し、清浄槽８内のグリコール等
濃度は徐々に増大してしまうので、本質的解決とはいえ
ない。このため、分離槽11を複数設けることが考えられ
るが、設備経済、設置スペース、取扱上許され難い。(2) On the other hand, if the feeding to the separation tank 11 is performed intermittently, the steps of heating in the separation tank 11, subsequent temperature equalization, and complete separation are performed in an economic facility for approximately 1.5 to 2 hours. Complete with Therefore, if the liquid is supplied every 1.5 to 2 hours, that is, if a batch method is used, the problem (1) is solved. However, during such a process time, the glycol and the like in the quenching tank 5 gradually decrease, and the concentration of the glycol and the like in the cleaning tank 8 gradually increases. For this reason, it is conceivable to provide a plurality of separation tanks 11, but it is difficult to allow equipment economy, installation space, and handling.
（３）したがって、従来装置は、焼入処理能力すなわち
サイクルタイムが非常に長い場合か、焼入品質、清浄効
果をある程度で妥協する場合に有効であるが、一層の生
産性向上、設備小型化を含むコスト低減が強く求められ
るいわゆる連続処理設備に不適当という問題を内在して
いる。(3) Therefore, the conventional apparatus is effective when the quenching treatment capacity, that is, the cycle time is very long, or when the quenching quality and the cleaning effect are compromised to some extent, but the productivity is further improved and the equipment is downsized. However, there is an inherent problem that it is unsuitable for a so-called continuous processing facility for which cost reduction is strongly required.
（４）さらに、一層の高品質が求められる現今では、清
浄槽内の濃度管理が厳しく規制されつつある。(4) Furthermore, at present, even higher quality is required, and the concentration control in the cleaning tank is being strictly regulated.
ここに、本考案の目的は、水とグリコール等非水液と
を連続して完全分離できかつ各全量を回収再利用でき、
しかも小型化・コスト低減化および取扱容易化を図れる
水溶性焼入液の分離回収焼入装置を提供することにあ
る。Here, an object of the present invention is to be able to continuously and completely separate water and a non-aqueous liquid such as glycol, and to collect and reuse each whole amount,
In addition, it is an object of the present invention to provide a water-soluble quenching liquid separating / collecting / quenching apparatus which can be reduced in size, cost, and easy to handle.
［課題を解決するための手段］ 本考案は、幾多の実機運転分析から分離槽内での液中
のグリコール等非水液の濃度が高く、補給量が小量であ
る程に分離作用が迅速に行なわれ、かつ一旦分離した水
とグリコール等とが再び混合う運動が引起され難いとい
う事実に着目し、清浄槽から引抜いた液を逆浸透膜装置
で分離し、濃縮して分離槽へ送給する構成とし前記目的
を達成するものである。[Means for Solving the Problems] According to the present invention, a number of actual operation analyzes show that the higher the concentration of non-aqueous liquid such as glycol in the separation tank and the smaller the replenishment amount, the faster the separation action. In addition, focusing on the fact that the water and glycol etc. once separated are unlikely to be mixed again, the liquid extracted from the cleaning tank is separated by a reverse osmosis membrane device, concentrated and sent to the separation tank. The above-mentioned object is achieved with a configuration in which the power is supplied.
すなわち、本発明は、水と非水液とを混合した水溶性
焼入液を収容する焼入槽と、焼入されたワークを水で清
浄する清浄槽と、この清浄槽から送給された液を適温の
もとに保留しつつ水と非水液とに分離して両者を再利用
可能に形成された分離槽とを含み構成された水溶性焼入
液の分離回収装置において、 前記清浄槽から送給された液を水と濃縮液とに分離す
る逆浸透膜装置を設ける、とともに透過液たる水を前記
清浄槽へ戻しかつ濃縮液を前記分離槽へ供給する配管装
置を設け、この配管装置の途中に逆浸透膜装置から送ら
れてきた濃縮液を前記分離槽に到達する前に適温に加温
する加温手段を設けたことを特徴とする。That is, in the present invention, a quenching tank containing a water-soluble quenching liquid obtained by mixing water and a non-aqueous liquid, a cleaning tank for cleaning the quenched work with water, and a cleaning tank supplied from the cleaning tank. A water-soluble quenching liquid separation and recovery device, comprising: a separation tank formed so that the liquid can be separated into water and a non-aqueous liquid while retaining the liquid at an appropriate temperature and both can be reused. A reverse osmosis membrane device for separating the liquid fed from the tank into water and a concentrated liquid is provided, and a piping device for returning water as a permeate to the cleaning tank and supplying a concentrated liquid to the separation tank is provided. A heating means for heating the concentrated solution sent from the reverse osmosis membrane device to an appropriate temperature before reaching the separation tank is provided in the middle of the piping device.
［作用］ 上記構成による本考案では、加熱炉で高温とされたワ
ークは、水とグリコール等非水液とを混合してなる水溶
性焼入液に浸漬され急冷される。焼入されたワークは、
続いて焼入槽から清浄槽へ搬送され清浄処理される。清
浄槽には、ワークに付着した焼入液が持込まれる。[Operation] In the present invention having the above-described configuration, the work heated to a high temperature in the heating furnace is immersed in a water-soluble quenching liquid obtained by mixing water and a non-aqueous liquid such as glycol, and rapidly cooled. The quenched work is
Subsequently, it is transported from the quenching tank to the cleaning tank, where the cleaning processing is performed. The quenching liquid attached to the work is brought into the cleaning tank.
したがって、清浄槽内の液は、極めて稀薄された焼入
液を含む。Therefore, the liquid in the cleaning tank contains a very diluted quenching liquid.
ここに、清浄槽内の液は、まず逆浸透膜装置によって
大量の水と濃縮された小量のグリコール等非水液とに分
離される。透過液たる水は、配管装置によって清浄槽に
戻され、非水液は分離槽に向けて送られる。Here, the liquid in the cleaning tank is first separated into a large amount of water and a small amount of concentrated non-aqueous liquid such as glycol by a reverse osmosis membrane device. The permeate water is returned to the cleaning tank by the piping device, and the non-aqueous liquid is sent to the separation tank.
ここに、分離槽に向けて送られた液（濃縮液）は、分
離槽に到達する前に加温手段によって適温となるまで加
温される。これにより、分離槽に供給されると直ちに水
とグリコール等非水液とに分離される。ここにおいて、
加温手段で加温すべき液量は水の含有量も少なく小量で
あるので、少ない熱量で液を適温に加温できる。こうし
て、適温に加温されて分離槽へ送給される液は、小量で
既に適温とされているので円滑かつ連続して良好な分離
回収作用が行われる。設備も小さくてよい。Here, the liquid (concentrated liquid) sent toward the separation tank is heated by a heating means until it reaches an appropriate temperature before reaching the separation tank. Thereby, as soon as it is supplied to the separation tank, it is separated into water and a non-aqueous liquid such as glycol. put it here,
Since the amount of liquid to be heated by the heating means has a small water content and a small amount, the liquid can be heated to an appropriate temperature with a small amount of heat. In this way, the liquid heated to an appropriate temperature and fed to the separation tank is already at an appropriate temperature in a small amount, so that a smooth and continuous good separation and recovery action is performed. Facilities may be small.
よって、分離された水とグリコール等非水液とを連続
して回収かつ再利用できる。Therefore, the separated water and the non-aqueous liquid such as glycol can be continuously collected and reused.
［実施例］ 以下、本考案の一実施例を図面に基づいて説明する。Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第１図は全体構成図である。 FIG. 1 is an overall configuration diagram.
この実施例における水溶性焼入液の分離装置10は、第
１図に示した如く、焼入装置をも形成する焼入槽５と清
浄槽8,9と分離槽11とを含み構成され、かつ逆浸透膜装
置40と配管装置35,36と加温手段21とを設けたものとさ
れている。As shown in FIG. 1, the water-soluble quenching liquid separating apparatus 10 in this embodiment includes a quenching tank 5, cleaning tanks 8, 9 and a separating tank 11, which also form a quenching apparatus. Further, a reverse osmosis membrane device 40, piping devices 35 and 36, and a heating means 21 are provided.
なお、焼入装置は、加熱炉1,焼入槽5,清浄槽8,9およ
びワークＷを順次搬送する搬送手段とからなる。The quenching device includes a heating furnace 1, a quenching tank 5, cleaning tanks 8, 9, and a transfer means for sequentially transferring the work W.
まず、焼入装置を形成する加熱炉１は、複数のワーク
Ｗを500℃前後に加熱するもので、この実施例では熱風
加熱方式である。加熱されたワークＷは、ローラコンベ
ア等移送手段３で扉２が開放されるごとに焼入槽５へ図
示しない搬送手段で搬送される。First, the heating furnace 1 forming the quenching device heats a plurality of works W to about 500 ° C. In this embodiment, a hot air heating method is used. Each time the door 2 is opened by the transfer means 3 such as a roller conveyor, the heated work W is transferred to the quenching tank 5 by a transfer means (not shown).
焼入槽５は、水と非水液（この実施例ではグリコー
ル）とを一定比率で混合した水溶性焼入液を収容し、浸
漬されたワークＷを焼入処理するものである。この実施
例における水溶性焼入液は、20〜30％グリコール水溶液
とされ、35℃前後に温調手段（図示省略）で温度コント
ロールされている。なお、６はライザー、７は循環ポン
プである。The quenching tank 5 contains a water-soluble quenching liquid in which water and a non-aqueous liquid (in this embodiment, glycol) are mixed at a fixed ratio, and quenches the immersed work W. The water-soluble quenching liquid in this embodiment is a 20-30% glycol aqueous solution, and the temperature is controlled at about 35 ° C. by a temperature control means (not shown). In addition, 6 is a riser and 7 is a circulation pump.
清浄槽は、第１の清浄槽８と第２の清浄槽９とから形
成され、焼入後のワークＷを水洗清浄するものである。
第１の清浄槽８内でのグリコール濃度を１〜５％、第２
の清浄槽９での濃度を0.05〜0.5％に規制して清浄効果
を高める２段水洗方式を形成するものである。The cleaning tank is formed of a first cleaning tank 8 and a second cleaning tank 9, and is for cleaning the quenched work W with water.
The concentration of glycol in the first cleaning tank 8 is 1 to 5%,
The concentration in the cleaning tank 9 is regulated to 0.05 to 0.5% to form a two-stage water washing system for improving the cleaning effect.
したがって、高温加熱されたワークＷは、一定時間ご
とに焼入槽５に搬送され焼入処理後、清浄槽8,9で清浄
される。なお、清浄槽8,9は、水洗によりワークＷの清
浄を行なうものであるから、浸漬方式でなく、スプレー
方式等として実施することができる。Therefore, the workpiece W heated at a high temperature is conveyed to the quenching tank 5 at regular time intervals, and after the quenching process, is cleaned in the cleaning tanks 8 and 9. Since the cleaning tanks 8, 9 are for cleaning the work W by washing with water, the cleaning tanks 8 and 9 can be implemented not as a dipping method but as a spray method.
さて、分離回収装置10は、第１の清浄槽８内の１〜５
％グリコール濃度の液（本来的清浄水と持込まれた水溶
性焼入液）〔清浄槽８をスプレー方式とした場合にはい
わゆる排水と呼ばれる〕を、水とグリコールに分離し、
それぞれを回収・再利用する手段であって、特に、円滑
・連続分離、高純度清浄、設備小型化を達成するために
逆浸透膜装置40と配管装置35,36とが設けられている。By the way, the separation and recovery device 10 is configured to store 1 to 5 in the first cleaning tank 8.
A solution having a concentration of% glycol (a water-soluble quenching solution originally introduced with clean water) [so-called drainage when the cleaning tank 8 is sprayed] is separated into water and glycol,
Means for collecting and reusing each of them are provided with a reverse osmosis membrane device 40 and piping devices 35 and 36 in order to achieve smooth / continuous separation, high-purity cleaning, and downsizing of equipment.
さらに、この実施例では一層の完全分離を達成するた
めに分離槽11に給送する液を事前に適温とするように形
成されている。Further, in this embodiment, in order to achieve further complete separation, the liquid fed to the separation tank 11 is formed so as to have an appropriate temperature in advance.
すなわち、分離槽11は、適温（例えば85℃）に加温さ
れた液を収容し、水とグリコールの分離作用を促進する
とともにそれらの比重差を利用して上層に水、下層にグ
リコールを保留する手段である。保留された水は、管路
31の一部を形成する水管34で第１の清浄槽８へ送給され
再利用される。一方、グリコールは、グリコール管32を
通し焼入槽５へ戻され再利用される。焼入槽５内の水−
グリコール混合比を一定に保持するためにグリコール管
32には流量調整弁33が設けられている。That is, the separation tank 11 accommodates a liquid heated to an appropriate temperature (for example, 85 ° C.), promotes the action of separating water and glycol, and retains water in the upper layer and glycol in the lower layer by utilizing the specific gravity difference between them. It is a means to do. Retained water is in the pipeline
The water is supplied to the first cleaning tank 8 by a water pipe 34 forming a part of the part 31 and is reused. On the other hand, the glycol is returned to the quenching tank 5 through the glycol tube 32 and is reused. Water in the quenching tank 5-
Glycol tube to keep the glycol mixing ratio constant
32 is provided with a flow control valve 33.
なお、焼入槽５への補給水は常法による。 In addition, make-up water to the quenching tank 5 is based on an ordinary method.
ところで、上記送給方式によると、分離槽11へ送給さ
れる液は、稀薄液（１〜５％）であるから大量となり分
離槽11、加温手段21等が大型化し分離作用も劣る。ここ
に、本考案では、清浄槽（８）からポンプ41で吸出した
液を一旦逆浸透膜装置40へ供給し、大量の水と小量の濃
縮グリコールに分離し、透過液たる水を清浄槽（９）へ
配管装置36で戻し、かつ濃縮液としてのグリコール水溶
液を配管装置35で分離槽11へ給送するものとしている。
この実施例の逆浸透膜装置は、濃縮液のグリコール濃度
を７〜15％とするような容量を持ち、９〜11％で運転す
るよう形成されている。By the way, according to the above-mentioned feeding method, the liquid to be fed to the separation tank 11 is a dilute liquid (1 to 5%), so that the amount becomes large and the separation tank 11, the heating means 21 and the like become large, and the separation action is inferior. Here, in the present invention, the liquid sucked by the pump 41 from the cleaning tank (8) is once supplied to the reverse osmosis membrane device 40 to be separated into a large amount of water and a small amount of concentrated glycol. Returning to (9) by the piping device 36, the glycol aqueous solution as the concentrated liquid is fed to the separation tank 11 by the piping device 35.
The reverse osmosis membrane device of this embodiment has a capacity such that the glycol concentration of the concentrate is 7 to 15%, and is formed to operate at 9 to 11%.
次に、加温手段21は、清浄槽（８）と分離槽11との
間、すなわち両者を連結する配管装置35の途中において
清浄槽（８）からの前記液を適温（例えば85℃）に加温
する手段である。この実施例では、加熱炉１が熱風加熱
方式であることから、気液熱交換方式として構成されて
いる。Next, the heating means 21 brings the liquid from the cleaning tank (8) to an appropriate temperature (for example, 85 ° C.) between the cleaning tank (8) and the separation tank 11, that is, in the middle of a piping device 35 connecting the two. It is a means for heating. In this embodiment, since the heating furnace 1 is a hot air heating system, it is configured as a gas-liquid heat exchange system.
すなわち、加熱炉１の排気管４にパイプ熱交換器22を
内蔵するシエル27を設け、パイプ熱交換器22を清浄槽
（８）から分離槽11に渡設された配管装置35の途中に連
続配設した構成である。That is, a shell 27 having a built-in pipe heat exchanger 22 is provided in the exhaust pipe 4 of the heating furnace 1, and the pipe heat exchanger 22 is continuously connected in the middle of a piping device 35 provided from the cleaning tank (8) to the separation tank 11. It is a configuration provided.
したがって、逆浸透膜装置40を介してポンプ41で圧送
された濃縮液は、パイプ熱交換器22を流通する間に、加
熱炉１から排出されシエル27,排気筒28を通して大気放
出される熱風排気により、適温（詳しくは、分離槽11へ
至るまでの冷却温度分だけ高い温度）に温められる。Therefore, the concentrated liquid pumped by the pump 41 through the reverse osmosis membrane device 40 is discharged from the heating furnace 1 while flowing through the pipe heat exchanger 22, and is discharged to the atmosphere through the shell 27 and the exhaust pipe 28. Thereby, it is warmed to an appropriate temperature (specifically, a temperature higher by the cooling temperature up to the separation tank 11).
この適温コントロールは、送給液流量と排ガス温度と
に照し自動的に行われるようにパイプ熱交換器22の容量
が定められている。但し、コントロールダンパー等を積
極的に設けてもよい。もとより、加温手段21は、分離槽
11へ至る前に清浄槽（８）からの液を適温とさせること
ができればよいので、スチーム、電力等を熱源とする他
の加温方式として形成してもよい。The capacity of the pipe heat exchanger 22 is determined so that the appropriate temperature control is automatically performed in accordance with the supply liquid flow rate and the exhaust gas temperature. However, a control damper or the like may be provided positively. Of course, the heating means 21
It is sufficient that the temperature of the liquid from the cleaning tank (8) can be adjusted to an appropriate temperature before reaching 11; therefore, another heating method using steam, electric power, or the like as a heat source may be employed.
次に、作用を説明する。 Next, the operation will be described.
加熱炉１で高温（500℃）に加熱されたワークＷは、
所定温度（35℃）に保持された焼入槽５内の水溶性焼入
液（20〜30％グリコール水溶液）中に所定時間だけ浸漬
され高品質焼入される。その後、矢印X,Y方向に搬送さ
れ清浄槽を形成する第１の清浄槽８内の１〜５％グリコ
ールを含む水で清浄される。この際、第１の清浄槽８内
には焼入槽５内の焼入液がワークＷに付着して持込まれ
る。したがって、これを放置すると焼入槽５内のグリコ
ール濃度が減少し、第１の清浄槽８内のグリコール濃度
が増大して不都合を生じるが、この問題は分離回収装置
10の作用によって解消される。The workpiece W heated to a high temperature (500 ° C.) in the heating furnace 1 is
It is immersed for only a predetermined time in a water-soluble quenching liquid (20-30% glycol aqueous solution) in a quenching tank 5 maintained at a predetermined temperature (35 ° C.) to perform high-quality quenching. After that, it is conveyed in the directions of the arrows X and Y and is cleaned with water containing 1 to 5% glycol in the first cleaning tank 8 forming the cleaning tank. At this time, the quenching liquid in the quenching tank 5 is carried into the first cleaning tank 8 while adhering to the work W. Therefore, if this is left as it is, the glycol concentration in the quenching tank 5 will decrease, and the glycol concentration in the first cleaning tank 8 will increase, causing inconvenience.
It is eliminated by the action of 10.
すなわち、第１の清浄槽８内の液は、ポンプ41で圧送
され、逆浸透膜装置40で水の含有量が少なく小量の濃縮
グリコール水溶液（９〜11％）と大量の水（透過液）と
に分離され配管装置35,36によって、それぞれ分離槽11
と第２の清浄槽９に送給される。第２の清浄槽９では、
この水を補給水として0.01〜0.05％の高純度水洗され、
オーバーフロー液は第１の清浄槽８へ戻される。That is, the liquid in the first cleaning tank 8 is pumped by the pump 41, and the reverse osmosis membrane device 40 has a small water content and a small amount of concentrated glycol aqueous solution (9 to 11%) and a large amount of water (permeate). ) And separated by piping devices 35 and 36, respectively.
Is sent to the second cleaning tank 9. In the second cleaning tank 9,
Using this water as make-up water, it is washed with high purity water of 0.01-0.05%,
The overflow liquid is returned to the first cleaning tank 8.
一方、濃縮グリコール水溶液は、加温手段21を通して
連続送給され、パイプ熱交換器22内を通過する間に加熱
炉１の排熱で適温（80〜90℃）に加温され、この適温で
分離槽11へ補給される。On the other hand, the concentrated glycol aqueous solution is continuously fed through the heating means 21 and is heated to an appropriate temperature (80 to 90 ° C.) by the exhaust heat of the heating furnace 1 while passing through the pipe heat exchanger 22. It is supplied to the separation tank 11.
分離槽11では、適温下において水とグリコールとの分
離作用が連続して行われる。分離後の水は上層に、グリ
コールは下層に保留されている。したがって、新たに補
給された適温の液は、上層の適温水中において直ちに分
離作用をする。補給液は小量であるから、分離槽11内に
大きな攪拌液流を引起こす等の不都合を生じさせない。In the separation tank 11, the separation of water and glycol is continuously performed at an appropriate temperature. The separated water is retained in the upper layer and the glycol is retained in the lower layer. Therefore, the newly replenished liquid at the appropriate temperature immediately acts in the upper layer of the appropriate temperature water. Since the amount of the replenishing liquid is small, it does not cause inconvenience such as causing a large stirring liquid flow in the separation tank 11.
このため、分離槽11内の上方部分では分離作用が局部
的に行なわれるが、上層の水と下層のグリコールとは全
体として安定保留されている。For this reason, the separation action is locally performed in the upper part in the separation tank 11, but the water in the upper layer and the glycol in the lower layer are stably held as a whole.
ここに、上層の水は第１の清浄槽８へ、下層のグリコ
ールは焼入槽５に送られ、それぞれ再利用される。Here, the upper layer of water is sent to the first cleaning tank 8 and the lower layer of glycol is sent to the quenching tank 5 for reuse.
しかして、この実施例によれば、清浄槽（８）から送
給された液を、大量の水と，水の含有量が少なく小量の
濃縮液（グリコール水溶液）とに分離する逆浸透膜装置
40を設け、分離された水を清浄槽（９）へ戻して高純度
水洗に供しかつ濃縮液を分離槽11へ供給する配管装置3
6,35を設け、この配管装置（35）の途中に逆浸透膜装置
40から送られてきた濃縮液（グリコール水溶液）を分離
槽11に到達する前に適温に加温する加温手段21を設けた
構成とされているので、分離槽11への送給液量が小さく
分離槽11,ポンプ41,加温手段21等を小型化できかつ分離
槽11内での分離作用を連続・円滑に行える、とともに大
量の水を回収し清浄槽（９）で高純度水洗できる。よっ
て、高品質焼入、所期の清浄効果を安定保障でき、全体
としてコスト低減と生産性を飛躍的に向上できる。According to this embodiment, the reverse osmosis membrane for separating the liquid fed from the cleaning tank (8) into a large amount of water and a small amount of a concentrated liquid (glycol aqueous solution) having a small water content. apparatus
A piping device 3 for returning the separated water to the cleaning tank (9) for high-purity water washing and supplying the concentrated liquid to the separation tank 11;
A reverse osmosis membrane device is installed in the middle of this piping device (35).
Since the heating means 21 for heating the concentrated liquid (glycol aqueous solution) sent from 40 to an appropriate temperature before reaching the separation tank 11 is provided, the amount of liquid supplied to the separation tank 11 is reduced. The separation tank 11, the pump 41, the heating means 21 and the like can be made small, and the separation action in the separation tank 11 can be performed continuously and smoothly. . Therefore, high quality quenching and the desired cleaning effect can be stably guaranteed, and overall cost reduction and productivity can be dramatically improved.
また、逆浸透膜装置40の導入により分離槽11での連続
分離が可能となり、かつその連続分離によって逆浸透膜
装置40自体を小型化でき、全体として一層の設備小型化
と水溶性焼入液の全量回収によるコスト低減ができる。In addition, the introduction of the reverse osmosis membrane device 40 enables continuous separation in the separation tank 11, and the continuous separation allows the reverse osmosis membrane device 40 itself to be downsized. The cost can be reduced by recovering the whole amount.
また、清浄槽（８）と分離槽11との送給途中におい
て、清浄槽（８）からの液を適温に加温する構成として
いるので、分離槽11における水とグリコールとの分離・
回収・再利用という効果を一段と確実かつ円滑に行え
る。In addition, since the liquid from the cleaning tank (8) is heated to an appropriate temperature during the feeding between the cleaning tank (8) and the separation tank 11, separation and separation of water and glycol in the separation tank 11 are performed.
The effect of collection and reuse can be further reliably and smoothly performed.
また、分離すべき液が小量でありかつ事前に適温とし
て供給するので、分離槽11の分離作用が連続・安定して
行なえるから、従来のバッチ方式に比較して分離槽11を
複数設ける必要がない。In addition, since the liquid to be separated is supplied in a small amount and at an appropriate temperature in advance, the separation operation of the separation tank 11 can be performed continuously and stably, so that a plurality of separation tanks 11 are provided as compared with the conventional batch method. No need.
また、連続分離・回収方式であるから、焼入槽５の焼
入液および清浄槽8,9の清浄水を常に所望条件に維持で
き、この点からも高品質製品を保障することができる。In addition, because of the continuous separation / recovery method, the quenching liquid in the quenching tank 5 and the clean water in the cleaning tanks 8 and 9 can always be maintained at desired conditions, and a high-quality product can be guaranteed from this point as well.
また、連続分離・回収は全量再利用方式であるから、
清浄槽8,9からの排水処理を一段と簡素化でき運用コス
トも低くできる。In addition, since continuous separation / recovery is an all-reuse system,
The wastewater treatment from the cleaning tanks 8, 9 can be further simplified, and the operating cost can be reduced.
さらに、加温手段21は、加熱炉１の排熱を有効利用す
るものであるから、蒸気，電力等の格別の熱源を設置し
なくてもよく経済的である。Further, since the heating means 21 effectively utilizes the exhaust heat of the heating furnace 1, it is economical to dispose a special heat source such as steam and electric power.
なお、この実施例では、水溶性焼入液を水とグリコー
ル（非水液）との混合液としたが、非水液はこれに限定
されず、例えばポリビニル・アルコール（PVA），ポリ
ビニル・ピロリドン（PVP），ポリアクリル酸ソーダ（S
PA），ポリエチレングリコール（PEG），ポリイソブレ
ン・マレイン酸ソーダ（PMI）等々の中から１または２
以上を適宜に選択して用いることができる。In this embodiment, the water-soluble quenching liquid is a mixture of water and glycol (non-aqueous liquid). However, the non-aqueous liquid is not limited to this. For example, polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP), sodium polyacrylate (S
PA), polyethylene glycol (PEG), polyisobrene / sodium maleate (PMI), etc. 1 or 2
The above can be appropriately selected and used.
また、清浄槽（8,9）は、２段水洗方式とされていた
が、第１つの清浄槽（８）から形成することができる。Further, the cleaning tanks (8, 9) are of a two-stage water washing system, but can be formed from the first cleaning tank (8).
因に、分離槽11を用いず逆浸透膜装置だけで水と濃縮
液とに分離する構成も考えられるが、この場合には逆浸
透膜装置が大容量となりコスト的にも実用性がないこと
を付言する。However, a configuration in which water and a concentrated solution are separated only by a reverse osmosis membrane device without using the separation tank 11 can be considered, but in this case, the reverse osmosis membrane device has a large capacity and is not practical in terms of cost. Is added.
［考案の効果］ 本考案は、水と非水液とを分離する分離槽等を含み形
成された水溶性焼入液の分離回収装置に、清浄槽から送
給された液を水と濃縮液とに分離する逆浸透膜装置と、
透過液たる水を清浄槽へ戻しかつ濃縮液を分離槽へ供給
する配管装置を設け、この配管装置の途中に逆浸透膜装
置から送られてきた濃縮液を前記分離槽に到達する前に
適温に加温する加温手段を設けた構成であるから、水と
非水液とを連続して完全分離できかつ水溶性焼入液全量
を回収再利用できる運用コストが低く小型で取扱容易な
水溶性焼入液の分離回収装置を提供することができる。[Effects of the Invention] The present invention provides a water-soluble quenching liquid separation / recovery device that includes a separation tank for separating water and a non-aqueous liquid, and supplies the liquid fed from the cleaning tank to the water and concentrated liquid. A reverse osmosis membrane device that separates into
A piping device is provided for returning water as a permeate to the cleaning tank and supplying the concentrated liquid to the separation tank, and the concentrated liquid sent from the reverse osmosis membrane device is heated to an appropriate temperature before reaching the separation tank. The system is equipped with a heating means for heating water and non-aqueous liquid continuously and completely, and the entire amount of water-soluble quenching liquid can be recovered and reused. It is possible to provide an apparatus for separating and recovering the quenching liquid.
第１図は本考案の一実施例を示す全体構成図および第２
図は従来の水溶性焼入液の分離回収装置の全体構成図で
ある。 ５…焼入槽、８…第１の清浄槽、９…第２の清浄槽、10
…分離回収装置、11…分離槽、21…加温手段、35,36…
配管装置、40…逆浸透膜装置、41…ポンプ。FIG. 1 is an overall structural view showing an embodiment of the present invention and FIG.
FIG. 1 is an overall configuration diagram of a conventional water-soluble quenching liquid separation and recovery device. 5: quenching tank, 8: first cleaning tank, 9: second cleaning tank, 10
... Separation and recovery equipment, 11 ... Separation tank, 21 ... Heating means, 35,36 ...
Piping device, 40: reverse osmosis membrane device, 41: pump.
Claims (1)
容する焼入槽と、焼入されたワークを水で清浄する清浄
槽と、この清浄槽から送給された液を適温のもとに保留
しつつ水と非水液とに分離して両者を再利用可能に形成
された分離槽とを含み構成された水溶性焼入液の分離回
収装置において、 前記清浄槽から送給された液を水と濃縮液とに分離する
逆浸透膜装置を設ける、とともに透過液たる水を前記清
浄槽へ戻しかつ濃縮液を前記分離槽へ供給する配管装置
を設け、この配管装置の途中に逆浸透膜装置から送られ
てきた濃縮液を前記分離槽に到達する前に適温に加温す
る加温手段を設けたことを特徴とする水溶性焼入液の分
離回収装置。1. A quenching tank for containing a water-soluble quenching liquid obtained by mixing water and a non-aqueous liquid, a cleaning tank for cleaning a quenched work with water, and a liquid fed from the cleaning tank. A water-soluble quenching liquid separation and recovery apparatus, comprising: a separation tank formed so that water and a non-aqueous liquid can be separated from each other while being held at an appropriate temperature, and both can be reused. A reverse osmosis membrane device for separating the liquid fed from the reactor into water and a concentrated liquid, and a piping device for returning water as a permeate to the cleaning tank and supplying a concentrated liquid to the separation tank, An apparatus for separating and recovering a water-soluble quenched liquid, comprising a heating means for heating the concentrated liquid sent from the reverse osmosis membrane apparatus to an appropriate temperature before reaching the separation tank in the middle of the apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989125937U JP2523686Y2 (en) | 1989-10-27 | 1989-10-27 | Water-soluble quenching liquid separation and recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989125937U JP2523686Y2 (en) | 1989-10-27 | 1989-10-27 | Water-soluble quenching liquid separation and recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0367052U JPH0367052U (en) | 1991-06-28 |
| JP2523686Y2 true JP2523686Y2 (en) | 1997-01-29 |
Family
ID=31673782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989125937U Expired - Lifetime JP2523686Y2 (en) | 1989-10-27 | 1989-10-27 | Water-soluble quenching liquid separation and recovery device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2523686Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190091042A1 (en) * | 2010-02-01 | 2019-03-28 | Biomet Manufacturing, Llc | Transdermal intraosseous device |
| US11026795B2 (en) | 2010-11-15 | 2021-06-08 | DePuy Synthes Products, Inc. | Graft collection and containment system for bone defects |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50152984A (en) * | 1974-05-31 | 1975-12-09 | ||
| JPS54155135A (en) * | 1978-05-29 | 1979-12-06 | Nippon Packaging Kk | Treatment of metal surface cleaned water |
| JPS5910430A (en) * | 1982-07-08 | 1984-01-19 | Misawa Homes Co Ltd | Bender |
| JPS6436721A (en) * | 1987-07-30 | 1989-02-07 | Trinity Ind Corp | Quenching apparatus |
-
1989
- 1989-10-27 JP JP1989125937U patent/JP2523686Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190091042A1 (en) * | 2010-02-01 | 2019-03-28 | Biomet Manufacturing, Llc | Transdermal intraosseous device |
| US11026795B2 (en) | 2010-11-15 | 2021-06-08 | DePuy Synthes Products, Inc. | Graft collection and containment system for bone defects |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0367052U (en) | 1991-06-28 |
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